阅读说明：本技术 一种不松动的螺栓组件连接方法 (Non-loose bolt assembly connecting method ) 是由 林志厚 于 2020-06-05 设计创作，主要内容包括：本发明涉及一种不松动的螺栓组件连接方法,由连接螺栓、紧固螺母、楔形螺母和拉压螺母构成,连接螺栓和紧固螺母将连接件紧固达到技术要求后,在连接螺栓的螺杆上安装楔形螺母,使在紧固螺母后部的内缘上设置的圆台侧面形状的内表面和在楔形螺母前部的外缘上设置的圆台侧面形状的外表面配合连接,在紧固螺母和楔形螺母的外缘设置的拉压螺母的前部内缘上设置的内螺纹和在紧固螺母的后部外缘上设置的外螺纹连接,在拉压螺母后部的内缘上设置的圆台侧面形状的内表面和在楔形螺母的后部外缘上设置的圆台侧面形状的外表面配合连接,当拉压螺母紧固达到技术要求后,楔形螺母和连接螺栓的螺杆的连接基本相对固定,紧固螺母、楔形螺母和拉压螺母之间的连接基本相对固定。(The invention relates to a method for connecting a bolt assembly without loosening, which comprises a connecting bolt, a fastening nut, a wedge nut and a tension and compression nut, wherein after the connecting bolt and the fastening nut fasten a connecting piece to meet the technical requirements, the wedge nut is arranged on a screw rod of the connecting bolt, so that the inner surface of the shape of the side surface of a circular truncated cone arranged on the inner edge of the rear part of the fastening nut is matched and connected with the outer surface of the shape of the side surface of the circular truncated cone arranged on the outer edge of the front part of the wedge nut, the internal thread arranged on the inner edge of the front part of the tension and compression nut arranged on the outer edge of the fastening nut and the wedge nut is connected with the external thread arranged on the outer edge of the rear part of the fastening nut, the inner surface of the shape of the side surface of the circular truncated cone arranged on the inner edge of the rear part of the tension and compression nut is matched and connected with the outer surface of the shape of the side surface of the circular truncated cone arranged on the outer edge of the rear part of the wedge nut, the connection between the wedge nut and the screw rod of the connecting bolt is basically relatively fixed, and the connection between the fastening nut, the wedge nut and the tension and compression nut is basically relatively fixed.)

1. A method for connecting a bolt assembly without loosening is composed of a connecting bolt, a fastening nut, a wedge-shaped nut and a tension and compression nut, and is characterized in that: arranging a fastening nut on a screw rod of a connecting bolt, enabling the front part of the fastening nut to be close to one side of the connecting piece, enabling the rear part of the fastening nut to be far away from one side of the connecting piece, arranging a section of internal thread matched and connected with the external thread on the screw rod of the connecting bolt on the inner edge of the front part of the fastening nut, arranging the outer edge of the front part of the fastening nut into the shape of the outer edge of a hexagon nut, arranging the inner edge of the rear part of the fastening nut into the shape of the side surface of a circular truncated cone taking the internal thread spiral axis of the front part as the axis of the circular truncated cone, arranging the small-diameter end of the fastening nut in the direction of the front part, arranging the large-diameter end of the fastening nut on the end surface of the rear part of the fastening nut, arranging a section of external thread on the outer edge of the rear part of the fastening nut, arranging a wedge nut on the screw rod of the connecting bolt on one side of the rear part of the fastening nut, the inner thread arranged on the inner edge of the wedge nut is matched and connected with the outer thread on the screw rod of the connecting bolt, the outer edge of the front part of the wedge nut is arranged into the outer surface of the shape of the side surface of a circular truncated cone taking the inner thread spiral axis as the circular truncated cone axis, the small-diameter end of the outer edge is arranged on the end surface of the front part of the wedge nut, the large-diameter end of the outer edge is arranged in the direction of the rear part of the wedge nut, the outer surface of the shape of the side surface of the circular truncated cone arranged on the outer edge of the front part of the wedge nut is matched and connected with the inner surface of the shape of the side surface of the circular truncated cone arranged on the inner edge of the rear part of the fastening nut, the outer edge of the rear part of the wedge nut is arranged into the outer surface of the shape of the side surface of the circular truncated cone taking the inner thread spiral axis as the circular truncated cone axis, the large-diameter end of the outer edge is arranged in the direction of the front part of the wedge nut, and the small-diameter end of the outer edge is arranged on the end surface of the rear part of the wedge nut, a plurality of separation seams are arranged on the front end surface of the wedge nut in the circumferential direction, the separation seams extend to the position close to the rear end of the wedge nut in the axial direction respectively, a plurality of separation seams are arranged on the rear end surface of the wedge nut in the circumferential direction, the separation seams extend to the position close to the front end of the wedge nut in the axial direction respectively, the separation seams at the front end and the separation seams at the rear end are staggered in the circumferential direction of the wedge nut, the wedge nut is divided into a plurality of mutually connected strips in the circumferential direction, a pulling and pressing nut is arranged on the outer edges of the fastening nut and the wedge nut, a section of internal thread arranged on the inner edge of the front part of the pulling and pressing nut is matched and connected with a section of external thread arranged on the outer edge of the rear part of the fastening nut, the inner edge of the rear part of the pulling and pressing nut is arranged into an inner surface of a shape of a side surface taking the axis of the internal thread of the front part of the pulling and pressing nut as the axis of a circular truncated cone, the large diameter end of the nut is arranged in the direction of the front part of the tension and compression nut, the small diameter end of the nut is arranged in the direction of the rear part of the tension and compression nut, the outer surface of the shape of the side surface of the circular truncated cone arranged on the outer edge of the rear part of the wedge nut is matched and connected with the inner surface of the shape of the side surface of the circular truncated cone arranged on the inner edge of the rear part of the tension and compression nut, the outer edges of the front part and the rear part of the tension and compression nut are arranged in the shape of the outer edge of the hexagon nut, when the fastening torque of the fastening nut and the connecting bolt for connecting and fastening the connecting piece reaches the technical requirement, the wedge nut is screwed on the screw rod of the connecting bolt, the outer surface of the shape of the side surface of the circular truncated cone arranged on the outer edge of the front part of the wedge nut is matched and connected with the inner surface of the shape of the side surface of the circular truncated cone arranged on the inner edge of the rear part of the fastening nut, and the outer edge of the tension and compression nut are connected, a section of internal thread arranged on the inner edge of the front part of the tension and compression nut is matched and connected with a section of external thread arranged on the outer edge of the rear part of the fastening nut, when the tension and compression nut is fastened, the tension and compression nut rotates towards the fastening direction and moves towards the direction of the fastening nut along the axis of the connecting bolt, the inner surface of the circular truncated cone side surface shape arranged on the inner edge of the rear part of the tension and compression nut is matched and connected with the outer surface of the circular truncated cone side surface shape arranged on the outer edge of the rear part of the wedge nut, the inner surface of the circular truncated cone side surface shape arranged on the inner edge of the rear part of the tension and compression nut generates the rotating direction of the friction torque on the outer surface of the circular truncated cone side surface shape arranged on the outer edge of the rear part of the wedge nut and the rotating direction of the fastening torque when the wedge nut is fastened are the same, and the outer surface of the circular truncated cone side surface shape arranged on the outer edge of the front part of the wedge nut is matched and connected with the external thread, the direction of rotation of the friction torque generated on the inner surface of the circular truncated cone side surface shape provided on the inner edge of the rear portion of the fastening nut and the direction of rotation of the fastening torque when fastening the fastening nut are the same, the direction of rotation of the friction torque generated on the inner surface of the pull-press nut front portion provided with a piece of internal thread on the outer edge of the fastening nut rear portion provided with a piece of external thread is the same as the direction of rotation of the fastening torque when fastening the fastening nut, the friction force between the internal thread of the wedge nut and the external thread on the screw of the connecting bolt is also increased as the fastening torque of the pull-press nut is increased, the friction force between the outer surface of the circular truncated cone side surface shape provided on the outer edge of the rear portion of the wedge nut and the inner surface of the circular truncated cone side surface shape provided on the inner edge of the rear portion of the pull-press nut is also increased, the friction force between the outer surface of the circular truncated cone side surface shape arranged on the outer edge of the front part of the wedge nut and the inner surface of the circular truncated cone side surface shape arranged on the inner edge of the rear part of the fastening nut is increased continuously, the friction force between the external thread arranged on the outer edge of the rear part of the fastening nut and the internal thread arranged on the inner edge of the front part of the pulling and pressing nut is increased continuously, when the fastening torque of the threaded connection between the pulling and pressing nut and the fastening nut reaches the technical requirement, the connection between the wedge nut and the connecting bolt is basically relatively fixed, the connection among the fastening nut, the wedge nut and the pulling and pressing nut is basically relatively fixed, and the connection of a wedge-shaped structure is arranged between the inner surface arranged on the inner edge of the rear part of the fastening nut and the outer surface arranged on the outer edge of the front part of the wedge nut, a wedge-structured connection is provided between an outer surface provided on an outer edge of the rear portion of the wedge nut and an inner surface provided on an inner edge of the rear portion of the tension and compression nut.

2. A method of connecting a non-loosening bolt assembly according to claim 1, wherein: the wedge nut is provided with a separation slit.

3. A method of connecting a non-loosening bolt assembly according to claim 1, wherein: the wedge nut is not provided with a separation slit.

4. A method of connecting a non-loosening bolt assembly according to claim 1, wherein: the technical parameters of the external surfaces of the truncated cone side shapes respectively arranged on the outer edges of the front part and the rear part of the wedge nut are basically the same.

5. A method of connecting a non-loosening bolt assembly according to claim 1, wherein: the nut is composed of a connecting bolt, a fastening wedge-shaped nut and a pulling and pressing nut, wherein the fastening wedge-shaped nut is formed by integrating a part of the fastening nut and a part of the wedge-shaped nut.

6. A method of connecting a non-loosening bolt assembly according to claim 1, wherein: the connecting bolt is composed of a connecting bolt, a fastening wedge-shaped nut and a pulling and pressing nut, wherein the fastening wedge-shaped nut is formed by integrating a part of fastening nut and a part of wedge-shaped nut, and a section of internal thread is arranged on the inner edge of the rear part of the pulling and pressing nut and is matched and connected with the external thread on the screw rod of the connecting bolt.

7. A method of connecting a non-loosening bolt assembly according to claim 1, wherein: the wedge-shaped pull-press nut is formed by connecting a bolt, a fastening nut and a wedge-shaped pull-press nut, wherein the wedge-shaped pull-press nut is formed by integrating a part of wedge-shaped nut and a part of pull-press nut.

8. A method of connecting a non-loosening bolt assembly according to claim 1, wherein: the rear part of the fastening nut and the front part of the wedge nut are connected in the circumferential direction by a connecting method using concave and convex teeth, the connection of the rear part of the fastening nut and the front part of the wedge nut in the circumferential direction is basically fixed, and the connection of the rear part of the fastening nut and the front part of the wedge nut in the axial direction is basically free.

9. A method of connecting a non-loosening bolt assembly according to claim 1, wherein: the tightening rotation direction of the tension and compression nut and the tightening rotation direction of the wedge nut are the same, and the tightening rotation direction of the tension and compression nut and the tightening rotation direction of the tightening nut are the same.

The technical field is as follows:

the invention belongs to the field of mechanical engineering.

Technical background:

today that industry rapidly develops, bolted connection's use is very extensive, and bolted connection is easy not hard up defect is some to be improved, but when using under the environment that some vibrations are great and there is more grease, has not reached the degree of letting people feel at rest completely, often brings many vexations because of bolted connection's not hard up to people, even causes loss of property and casualty accident. At present, some advanced anti-loosening bolt connection methods basically increase the friction force between threads to achieve the purpose of loosening prevention, are good improvement measures, and do not achieve the problem of loosening of bolt connection. One patent is named as a check bolt assembly, and the application numbers are as follows: CN201020636044 discloses a method of using a connecting nut and a connecting member to fasten a bolt, wherein anti-slip teeth opposite to the direction of screwing the bolt are arranged on the head of the connecting bolt and the connecting side of the connecting nut and the connecting member, and the problem of loose connection of the bolt is solved by increasing friction between the head of the connecting bolt and the connecting nut and the connecting member, so as to play a certain role. At present, various high-strength bolts used in a vibration environment are connected and still have the problem of looseness, and foundation bolts for fixing equipment with large vibration also have the problem of looseness.

The invention content is as follows:

the invention aims to provide a bolt assembly connecting method without looseness.

In order to achieve the purpose, the invention adopts the following technical scheme: a method for connecting a bolt assembly without loosening comprises arranging a fastening nut on a screw rod of a connecting bolt, enabling the front part of the fastening nut to be close to one side of a connecting piece, enabling the rear part of the fastening nut to be far away from one side of the connecting piece, arranging a section of internal thread matched and connected with external thread on the screw rod of the connecting bolt on the inner edge of the front part of the fastening nut, arranging the outer edge of the front part of the fastening nut into the shape of the outer edge of a hexagon nut, arranging the inner edge of the rear part of the fastening nut into the inner surface of the shape of the side face of a circular truncated cone with the axis of the internal thread spiral of the front part as the axis of the circular truncated cone, arranging one end with a small diameter in the direction of the front part of the fastening nut, arranging one end with a large diameter on the end face of the rear part of the fastening nut, and arranging a section of external thread on the outer edge of the rear part of the fastening nut, a wedge nut is arranged on the screw rod of the connecting bolt on one side of the rear part of the fastening nut, an internal thread arranged on the inner edge of the wedge nut is matched and connected with an external thread on the screw rod of the connecting bolt, the outer edge of the front part of the wedge nut is arranged into a circular truncated cone side surface shaped outer surface taking the internal thread spiral axis line as the circular truncated cone axis line, one end with a small diameter is arranged on the end surface of the front part of the wedge nut, one end with a large diameter is arranged in the rear part direction of the wedge nut, the circular truncated cone side surface shaped outer surface arranged on the outer edge of the front part of the wedge nut is matched and connected with the circular truncated cone side surface shaped inner surface arranged on the inner edge of the rear part of the fastening nut, and the outer edge of the rear part of the wedge nut is arranged into a circular truncated cone side surface shaped outer surface taking the internal thread spiral axis line as the circular truncated cone axis line, the large-diameter end of the wedge-shaped nut is arranged in the front part direction of the wedge-shaped nut, the small-diameter end of the wedge-shaped nut is arranged on the end surface of the rear part of the wedge-shaped nut, a plurality of separation seams are arranged on the front end surface of the wedge-shaped nut in the circumferential direction and respectively extend to the position close to the rear end of the wedge-shaped nut in the axial direction, a plurality of separation seams are arranged on the rear end surface of the wedge-shaped nut in the circumferential direction and respectively extend to the position close to the front end of the wedge-shaped nut in the axial direction, the front separation seams and the rear separation seams are staggered in the circumferential direction of the wedge-shaped nut, the wedge-shaped nut is divided into a plurality of mutually connected strips in the circumferential direction, a tension and compression nut is arranged on the outer edges of the fastening nut and the wedge-shaped nut, a section of internal thread arranged on the inner edge of the front part of the tension and compression nut is matched and connected with a section of external thread arranged on the outer edge of the rear part of the fastening nut, setting the inner edge of the rear part of the tension-compression nut into the inner surface of the shape of the side surface of a circular truncated cone taking the screw axis of the internal thread of the front part of the tension-compression nut as the axis of the circular truncated cone, setting the large-diameter end of the inner edge of the rear part of the tension-compression nut in the direction of the front part of the tension-compression nut, setting the small-diameter end of the inner edge of the rear part of the tension-compression nut in the direction of the rear part of the tension-compression nut, matching and connecting the outer surface of the side surface of the circular truncated cone arranged on the outer edge of the rear part of the wedge nut and the inner surface of the side surface of the circular truncated cone arranged on the inner edge of the rear part of the tension-compression nut, setting the outer edges of the front part and the rear part of the tension-compression nut into the outer edge of a hexagonal nut, and after the fastening torque of the fastening and the connecting bolt connecting and fastening connecting piece reaches the technical requirements, screwing the wedge nut on the screw rod, and making the outer surface of the circular truncated cone arranged on the outer edge of the rear part of the wedge nut A tapered inner surface formed in a tapered shape, wherein the outer edge of the tension nut and the outer edge of the wedge nut are connected to each other in a fitting manner, and the tension nut is connected to each other in a fitting manner such that a single internal thread provided on the inner edge of the front portion of the tension nut and a single external thread provided on the outer edge of the rear portion of the tension nut are connected to each other in a fitting manner, and when the tension nut is fastened, the tension nut is moved in the direction of the tension nut along the axis of the connecting bolt while rotating in the fastening direction, and the tapered inner surface formed in the tapered shape provided on the inner edge of the rear portion of the tension nut and the tapered outer surface formed in the outer edge of the rear portion of the wedge nut are connected to each other in a fitting manner, and the tapered inner surface formed in the tapered shape provided on the inner edge of the rear portion of the tension nut is rotated in the direction of the frictional moment generated on the tapered outer surface formed in the outer edge of the tapered shape provided on the outer edge of the rear portion of the wedge nut, and the direction of rotation of the tightening torque when tightening the wedge nut is the same, the direction of rotation of the round table side-face shaped outer surface provided on the outer edge of the front portion of the wedge nut, the direction of rotation of the friction torque generated on the round table side-face shaped inner surface provided on the inner edge of the rear portion of the tightening nut, and the direction of rotation of the tightening torque when tightening the tightening nut are the same, the direction of rotation of the friction torque generated by the one-piece female thread provided on the inner edge of the front portion of the pull-press nut on the one-piece male thread provided on the outer edge of the rear portion of the tightening nut, and the direction of rotation of the tightening torque when tightening the tightening nut are the same, and as the tightening torque of the pull-press nut increases, the friction force between the female thread of the wedge nut and the male thread on the screw of the connecting bolt also increases continuously, the friction force between the outer surface of the truncated cone side surface shape arranged on the outer edge of the rear part of the wedge nut and the inner surface of the truncated cone side surface shape arranged on the inner edge of the rear part of the tension and compression nut is increased continuously, the friction force between the outer surface of the truncated cone side surface shape arranged on the outer edge of the front part of the wedge nut and the inner surface of the truncated cone side surface shape arranged on the inner edge of the rear part of the fastening nut is increased continuously, the friction force between the external thread arranged on the outer edge of the rear part of the fastening nut and the internal thread arranged on the inner edge of the front part of the tension and compression nut is increased continuously, when the fastening torque of the threaded connection between the tension and compression nut and the fastening nut reaches the technical requirement, the connection between the wedge nut and the connecting bolt is basically fixed relatively, and the connection between the fastening nut, the wedge nut and the tension and compression nut is basically fixed relatively, the inner surface of the back part of the wedge nut and the outer surface of the front part of the wedge nut are connected in a wedging structure, and the outer surface of the back part of the wedge nut and the inner surface of the back part of the tension and compression nut are connected in a wedging structure.

The wedge nut is provided with a separation slit.

The wedge nut is not provided with a separation slit.

The technical parameters of the external surfaces of the truncated cone side shapes respectively arranged on the outer edges of the front part and the rear part of the wedge nut are basically the same.

The nut is composed of a connecting bolt, a fastening wedge-shaped nut and a pulling and pressing nut, wherein the fastening wedge-shaped nut is formed by integrating a part of the fastening nut and a part of the wedge-shaped nut.

The connecting bolt is composed of a connecting bolt, a fastening wedge-shaped nut and a pulling and pressing nut, wherein the fastening wedge-shaped nut is formed by integrating a part of fastening nut and a part of wedge-shaped nut, and a section of internal thread is arranged on the inner edge of the rear part of the pulling and pressing nut and is connected with the external thread on the screw rod of the connecting bolt in a matching way.

The wedge-shaped pull-press nut is formed by connecting a bolt, a fastening nut and a wedge-shaped pull-press nut, wherein the wedge-shaped pull-press nut is formed by integrating a part of wedge-shaped nut and a part of pull-press nut.

The rear part of the fastening nut and the front part of the wedge nut are connected in the circumferential direction by a connecting method using concave and convex teeth, the connection of the rear part of the fastening nut and the front part of the wedge nut in the circumferential direction is basically fixed, and the connection of the rear part of the fastening nut and the front part of the wedge nut in the axial direction is basically free.

The tightening rotation direction of the tension and compression nut and the tightening rotation direction of the wedge nut are the same, and the tightening rotation direction of the tension and compression nut and the tightening rotation direction of the tightening nut are the same.

The invention adopts the technical scheme that: basically, the reliability and the safety of bolt connection are improved on the basis of stronger practicability, and the problem that the bolt connection is easy to loose is solved.

The invention will be described in more detail with reference to the accompanying drawings and examples

Description of the drawings:

1. FIG. 1 is a schematic view of a method of attaching a non-loose bolt assembly

2. FIG. 2 is a schematic side view A-A of FIG. 1

3. FIG. 3 is a schematic sectional view taken along line B-B in FIG. 1

4. FIG. 4 is a schematic cross-sectional view of C-C in FIG. 1

5. FIG. 5 is a schematic cross-sectional view taken along line D-D in FIG. 1

6. FIG. 6 is a side view of the wedge nut 3 of FIG. 1

7. FIG. 7 is a schematic cross-sectional view of the wedge nut 3 of FIG. 1

8. FIG. 8 is a schematic view of the wedge nut 3 of FIG. 1 expanded in the circumferential direction

9. FIG. 9 is a second schematic view of a non-loose bolt assembly connection method

10. FIG. 10 is a schematic side view of K-K in FIG. 9, and FIG. 10 is a schematic side view of K1-K1 in FIG. 14

11. FIG. 11 is a schematic sectional view taken along line L-L in FIG. 9, and FIG. 11 is a schematic sectional view taken along line L1-L1 in FIG. 14

12. FIG. 12 is a schematic view of a section M-M in FIG. 9, and FIG. 12 is a schematic view of a section M2-M2 in FIG. 15

13. FIG. 13 is a schematic view of section E-E in FIG. 1, FIG. 13 is a schematic view of section N-N in FIG. 9, FIG. 13 is a schematic view of section N1-N1 in FIG. 14, and FIG. 13 is a schematic view of section N2-N2 in FIG. 15

14. FIG. 14 is a third (A) schematic view of a non-loose bolt assembly connection method

15. FIG. 15 is a third (B) schematic view of a non-loose bolt assembly connection method

16. FIG. 16 is a schematic side view of the wedge nut 3 of FIG. 14, and FIG. 16 is a schematic side view of the wedge nut 3 of FIG. 15

17. FIG. 17 is a schematic cross-sectional view of the wedge nut 3 of FIG. 14, and FIG. 17 is a schematic cross-sectional view of the wedge nut 3 of FIG. 15

18. FIG. 18 is a schematic view showing the wedge nut 3 of FIG. 14 expanded in the circumferential direction, and FIG. 18 is a schematic view showing the wedge nut 3 of FIG. 15 expanded in the circumferential direction

19. FIG. 19 is a fifth schematic view of a non-loosening bolt assembly connection method

20. FIG. 20 is a schematic side view of P-P of FIG. 19

21. FIG. 21 is a schematic view of section R-R in FIG. 19, and FIG. 21 is a schematic view of section R1-R1 in FIG. 37

22. FIG. 22 is a schematic view of the cross section S-S in FIG. 19, and FIG. 22 is a schematic view of the cross section S1-S1 in FIG. 37

23. FIG. 23 is a schematic view of section T-T in FIG. 19, and FIG. 23 is a schematic view of section T1-T1 in FIG. 37

24. FIG. 24 is a sixth schematic view of a non-loosening bolt assembly connection method

25. FIG. 25 is a schematic side view of V-V of FIG. 24

26. FIG. 26 is a schematic cross-sectional view taken along line W-W in FIG. 24

27. FIG. 27 is a schematic view of section X-X in FIG. 24, and FIG. 27 is a schematic view of section M1-M1 in FIG. 14

28. FIG. 28 is a schematic cross-sectional view of the cross-section Y-Y in FIG. 24

29. FIG. 29 is a seventh schematic view of a non-loose bolt assembly connection method

30. FIG. 30 is a schematic side view from F to F in FIG. 29, and FIG. 30 is a schematic side view from K2 to K2 in FIG. 15

31. FIG. 31 is a schematic sectional view taken at G-G in FIG. 29, and FIG. 31 is a schematic sectional view taken at L2-L2 in FIG. 15

32. FIG. 32 is a schematic sectional view taken along line H-H in FIG. 29

33. FIG. 33 is a schematic cross-sectional view of J-J in FIG. 29

34. FIG. 34 is a side view of the wedge nut 3 of FIG. 29

35. FIG. 35 is a schematic cross-sectional view of the wedge nut 3 of FIG. 29

36. FIG. 36 is a schematic view showing the circumferential development of the male and female teeth fitting connection between the fastening nut 2 and the wedge nut 3 shown in FIG. 29

37. FIG. 37 is a fourth schematic view of a non-loosening bolt assembly connection method

38. FIG. 38 is a schematic side view of P1-P1 of FIG. 37

The specific implementation scheme is as follows:

the following scheme is adopted to solve the problem that bolt connection is easy to loosen:

the following is a schematic view of a non-loose bolt assembly connection method:

1. FIG. 1 is a schematic view of a method of attaching a non-loose bolt assembly

2. FIG. 2 is a schematic side view A-A of FIG. 1

3. FIG. 3 is a schematic sectional view taken along line B-B in FIG. 1

4. FIG. 4 is a schematic cross-sectional view of C-C in FIG. 1

5. FIG. 5 is a schematic cross-sectional view taken along line D-D in FIG. 1

6. FIG. 6 is a side view of the wedge nut 3 of FIG. 1

7. FIG. 7 is a schematic cross-sectional view of the wedge nut 3 of FIG. 1

8. FIG. 8 is a schematic view of the wedge nut 3 of FIG. 1 expanded in the circumferential direction

9. FIG. 13 is a schematic view of section E-E in FIG. 1

One of the methods of fastening a bolt assembly without loosening shown in fig. 1 to 8 and 13 is constituted by a fastening bolt 1, a fastening nut 2, a wedge nut 3 and a tension and compression nut 4, wherein a fastening nut 2 is provided on a screw of the fastening bolt 1 so that a front portion of the fastening nut 2 is close to a side of a coupling member, a rear portion of the fastening nut 2 is far from the side of the coupling member, a section of internal thread which is engaged with an external thread of the screw of the coupling bolt 1 is provided on an inner edge of a front portion of the fastening nut 2, an outer edge of the front portion of the fastening nut 2 is provided in an outer edge shape of a hexagon nut, an inner edge of the rear portion of the fastening nut 2 is provided in an inner surface of a truncated cone side shape having a central axis of the internal thread of the front portion as a truncated cone, a small diameter end thereof is provided in a direction of the front portion of the fastening nut 2, a large diameter end thereof is provided on an end surface of the rear portion of the fastening nut 2, an external thread is provided on the outer edge of the rear portion of the fastening nut 2, a wedge nut 3 is provided on the screw of the connecting bolt 1 on the rear portion side of the fastening nut 2, an internal thread provided on the inner edge of the wedge nut 3 is connected with the external thread on the screw of the connecting bolt 1 in a fitting manner, the outer edge of the front portion of the wedge nut 3 is provided with a truncated cone side-shaped outer surface whose internal thread spiral axis is a truncated cone axis, the small-diameter end of the outer edge is provided on the end surface of the front portion of the wedge nut 3, the large-diameter end is provided in the rear portion direction of the wedge nut 3, the truncated cone side-shaped outer surface provided on the outer edge of the front portion of the wedge nut 3 is connected with a truncated cone side-shaped inner surface provided on the inner edge of the rear portion of the fastening nut 2 in a fitting manner, the outer edge of the rear portion of the wedge nut 3 is provided with an internal thread spiral axis of the inner edge as an axis The outer surface of the shape of the side face of the circular truncated cone of the wire, its major diameter end is set up in the direction of the front part of the wedge nut 3, the minor diameter end is set up on the end surface of the back part of the wedge nut 3, set up four separation slots in the circumference from the front end surface of the above-mentioned wedge nut 3, four separation slots extend to the back end position close to the above-mentioned wedge nut 3 separately in the axial direction, set up four separation slots in the circumference from the back end surface of the above-mentioned wedge nut 3, four separation slots extend to the front end position close to the above-mentioned wedge nut 3 separately in the axial direction, the above-mentioned front end separation slot and the above-mentioned back end separation slot are staggered each other in the circumference of the wedge nut 3, divide the wedge nut 3 into eight strips connected each other in the circumference, set up a tension and compression nut 4 in the above-mentioned fastening nut 2 and the outer fringe of the above-mentioned wedge nut 3, set up a section of internal thread and behind the above-mentioned fastening nut 2 on the inner edge of the above-mentioned front part of the tension and compression nut 4 The outer edge of the part is provided with a section of external thread which is matched and connected, the inner edge of the rear part of the tension and compression nut 4 is arranged into the inner surface of the shape of the side surface of a circular truncated cone taking the internal thread spiral axis line of the front part as the axis line of the circular truncated cone, the end with large diameter is arranged in the direction of the front part of the tension and compression nut 4, the end with small diameter is arranged in the direction of the rear part of the tension and compression nut 4, the outer surface of the shape of the side surface of the circular truncated cone arranged on the outer edge of the rear part of the wedge nut 3 is matched and connected with the inner surface of the shape of the side surface of the circular truncated cone arranged on the inner edge of the rear part of the tension and compression nut 4, the outer edges of the front part and the rear part of the tension and compression nut 4 are arranged into the shape of the outer edge of a hexagon nut, when the fastening torque of the fastening nut 2 and the connecting bolt 1 for connecting the fastening connecting piece 5 and the connecting piece 6 reaches the technical requirement, the wedge nut 3 is screwed and connected on the screw rod of the connecting bolt 1, the outer surface of the circular truncated cone side surface shape provided on the outer edge of the front portion of the wedge nut 3 and the inner surface of the circular truncated cone side surface shape provided on the inner edge of the rear portion of the fastening nut 2 are connected in a fitting manner, when the wedge nut 3 is fastened, the outer surface of the circular truncated cone side surface shape provided on the outer edge of the front portion of the wedge nut 3 generates the same rotation direction of the friction torque with respect to the inner surface of the circular truncated cone side surface shape provided on the inner edge of the rear portion of the fastening nut 2 and the rotation direction of the fastening torque when the fastening nut 2 is fastened, the tension and compression nut 4 is connected to the outer edge of the fastening nut 2 and the outer edge of the wedge nut 3, and the internal thread provided on the inner edge of the front portion of the tension and compression nut 4 and the external thread provided on the outer edge of the rear portion of the fastening nut 2 are connected in a fitting manner, when the tension/compression nut 4 is tightened, the tension/compression nut 4 is moved in the direction of the tightening nut 2 along the axis of the connecting bolt 1 while rotating in the tightening direction, so that the inner surface of the circular truncated cone side shape provided on the inner edge of the rear portion of the tension/compression nut 4 and the outer surface of the circular truncated cone side shape provided on the outer edge of the rear portion of the wedge nut 3 are connected in a fitting manner, the inner surface of the circular truncated cone side shape provided on the inner edge of the rear portion of the tension/compression nut 4 generates a friction torque in the outer surface of the circular truncated cone side shape provided on the outer edge of the rear portion of the wedge nut 3 in the same direction as the tightening torque generated when the wedge nut 3 is tightened, and the inner thread provided on the inner edge of the front portion of the tension/compression nut 4 generates a friction torque in the direction of the outer thread provided on the outer edge of the rear portion of the tightening nut 2, the rotational direction of the tightening torque when the fastening nut 2 is fastened is the same, and as the tightening torque of the tension/compression nut 4 increases, the frictional force between the internal thread of the wedge nut 3 and the external thread of the screw of the connecting bolt 1 increases, the frictional force between the outer surface of the circular truncated cone side surface shape provided on the outer edge of the rear portion of the wedge nut 3 and the inner surface of the circular truncated cone side surface shape provided on the inner edge of the rear portion of the tension/compression nut 4 increases, the frictional force between the outer surface of the circular truncated cone side surface shape provided on the outer edge of the front portion of the wedge nut 3 and the inner surface of the circular truncated cone side surface shape provided on the inner edge of the rear portion of the fastening nut 2 increases, and the frictional force between the external thread provided on the outer edge of the rear portion of the fastening nut 2 and the internal thread provided on the inner edge of the front portion of the tension/compression nut 4 increases, when the tightening torque of the threaded connection between the tension and compression nut 4 and the fastening nut 2 meets the technical requirements, the connection between the wedge nut 3 and the connecting bolt 1 is basically relatively fixed, the connection between the fastening nut 2, the wedge nut 3 and the tension and compression nut 4 is basically relatively fixed, the connection of a wedge structure is arranged between the inner surface arranged on the inner edge of the rear part of the fastening nut 2 and the outer surface arranged on the outer edge of the front part of the wedge nut 3, and the connection of a wedge structure is arranged between the outer surface arranged on the outer edge of the rear part of the wedge nut 3 and the inner surface arranged on the inner edge of the rear part of the tension and compression nut 4.

As shown in fig. 1, the fastening nut 2 and the connecting bolt 1 fasten the connecting piece 5 and the connecting piece 6 together, and in order to prevent the connection between the fastening nut 2 and the connecting bolt 1 from loosening under special environments such as vibration, the following measures are taken: a wedge-shaped nut 3 is arranged behind the fastening nut 2, a pulling and pressing nut 4 is arranged at the outer edges of the fastening nut 2 and the wedge-shaped nut 3, a wedging structure is arranged between the rear part of the fastening nut 2 and the front part of the wedge-shaped nut 3, a wedging structure is arranged between the pulling and pressing nut 4 and the wedge-shaped nut 3, a tensioning structure is arranged between the fastening nut 2 and the pulling and pressing nut 4, the nuts of the wedging structure are wedged together by utilizing the tensioning of the tensioning structure, the tensioning structure is arranged between the pulling and pressing nut 4 and the fastening nut 2 through the arranged threaded connection, the arrangement of the wedging structure is realized through the connection between the outer surface of the shape of the side surface of the circular truncated cone and the inner surface of the shape of the side surface of the circular truncated cone, which is arranged between the pulling and pressing nut 4 and the wedge-shaped nut 3 and between the wedge-shaped nut 3 and the fastening nut 2, eight parting seams are arranged on the wedge-shaped nut 3, divide wedge nut 3 into eight local eight division strips that link to each other, when drawing the screw fastening connection between compression nut 4 and fastening nut 2, the internal thread on the eight division strips of wedge nut 3 compresses tightly on the external screw thread of connecting bolt 1's screw rod, frictional force between wedge nut 3 and connecting bolt 1's screw rod is quick, increase by a wide margin, when drawing the fastening force of compression nut 4 and reaching technical requirement, the connection between wedge nut 3 and the connecting bolt 1 is basically relatively fixed, above-mentioned connecting bolt 1, fastening nut 2, wedge nut 3, draw compression nut 4 extrusion, the wedging is connected together, mutual basic relatively fixed. The tightening rotation direction of the tension/compression nut 4 is the same as the tightening rotation direction of the wedge nut 3, the tightening rotation direction of the tension/compression nut 4 is the same as the tightening rotation direction of the tightening nut 2, and in order to facilitate tightening of the wedge nut 3, the middle portion of the wedge nut 3 is set to the outer edge shape of a hexagon nut. The connecting bolt 1, the fastening nut 2, the wedge-shaped nut 3 and the tension and compression nut 4 can be reused. Fig. 8 is a schematic view of the wedge nut 3 being spread out in the circumferential direction, wherein a-a shows the cross-sectional lines of the wedge nut 3 being spread out in the circumferential direction.

The following is a second schematic view of a non-loose bolt assembly connection method:

1. FIG. 9 is a second schematic view of a non-loose bolt assembly connection method

2. FIG. 10 is a schematic side view of K-K of FIG. 9

3. FIG. 11 is a schematic sectional view taken along line L-L in FIG. 9

4. FIG. 12 is a schematic view of a cross section M-M in FIG. 9

5. FIG. 13 is a schematic view of section N-N in FIG. 9

As shown in fig. 9 to 13, another method for connecting a bolt assembly without loosening is composed of a connecting bolt 1, a fastening nut 2, a wedge nut 3 and a tension and compression nut 4, when the connecting bolt 1 and the fastening nut 2 are connected with a fastening connecting piece 5 and a connecting piece 6, the wedge nut 3 is used without a separation seam, when the fastening force of the connection of the internal thread arranged on the inner edge of the front part of the tension and compression nut 4 and the external thread arranged on the outer edge of the rear part of the fastening nut 2 reaches the technical requirement, a strong pulling force is generated between the fastening nut 2 and the tension and compression nut 4, a strong friction force is generated between the internal thread of the fastening nut 2 and the external thread on the screw rod of the connecting bolt 1 and between the internal thread of the wedge nut 3 and the external thread on the screw rod of the connecting bolt 1, so that the connection of the fastening nut 2 and the connecting bolt 1 is basically fixed, the connection between the wedge nut 3 and the connecting bolt 1 is basically fixed relatively, the inner surface of the shape of the side surface of the circular truncated cone arranged on the inner edge of the rear part of the fastening nut 2 and the outer surface of the shape of the side surface of the circular truncated cone arranged on the outer edge of the front part of the wedge nut 3 are basically fixed relatively in a connected mode, the outer surface of the shape of the side surface of the circular truncated cone arranged on the outer edge of the rear part of the wedge nut 3 and the inner surface of the shape of the side surface of the circular truncated cone arranged on the inner edge of the rear part of the tension and compression nut 4 are basically fixed relatively in a connected mode, and the purpose of preventing the nut from loosening is achieved. The tightening rotation direction of the tension/compression nut 4 is the same as the tightening rotation direction of the fastening nut 2, and the tightening rotation direction of the tension/compression nut 4 is the same as the tightening rotation direction of the wedge nut 3.

The third schematic diagram of the connection method of the non-loose bolt assembly is as follows:

1. FIG. 14 is a third (A) schematic view of a non-loose bolt assembly connection method

2. FIG. 10 is a schematic side view of K1-K1 of FIG. 14

3. FIG. 11 is a schematic cross-sectional view of L1-L1 of FIG. 14

4. FIG. 27 is a schematic cross-sectional view of M1-M1 of FIG. 14

5. FIG. 13 is a schematic cross-sectional view of N1-N1 shown in FIG. 14

6. FIG. 16 is a side view of the wedge nut 3 of FIG. 14

7. FIG. 17 is a schematic cross-sectional view of the wedge nut 3 of FIG. 14

8. FIG. 18 is a schematic view of the wedge nut 3 of FIG. 14 expanded in the circumferential direction

9. FIG. 15 is a third (B) schematic view of a non-loose bolt assembly connection method

10. FIG. 30 is a schematic side view of K2-K2 of FIG. 15

11. FIG. 31 is a schematic cross-sectional view of L2-L2 of FIG. 15

12. FIG. 12 is a schematic cross-sectional view of M2-M2 shown in FIG. 15

13. FIG. 13 is a schematic cross-sectional view of N2-N2 shown in FIG. 15

14. FIG. 16 is a side view of the wedge nut 3 of FIG. 15

15. FIG. 17 is a schematic cross-sectional view of the wedge nut 3 of FIG. 15

16. FIG. 18 is a schematic view of the wedge nut 3 of FIG. 15 expanded in the circumferential direction

A third method (a) of connecting a bolt assembly which is not loosened as shown in fig. 14, 10, 11, 27, 13, 16 to 18 is constituted by a connecting bolt 1, a fastening nut 2, a wedge nut 3, and a tension and compression nut 4, wherein the wedge nut 3 is provided with a slit, the wedge nut 3 used when the connecting bolt 1 and the fastening nut 2 connect the fastening joint 5 and the joint 6 is provided with four slits starting from the front end surface thereof in the circumferential direction, the four slits extending in the axial direction to a position close to the rear end of the wedge nut 3, and when the tension and compression nut 4 is fastened, a strong compression is generated between the outer surface of the truncated cone side shape provided on the outer edge of the front portion of the wedge nut 3 and the inner surface of the truncated cone side shape provided on the inner edge of the rear portion of the fastening nut 2 as the fastening force between the tension and compression nut 4 and the fastening nut 2 increases, the outer surface of the shape of the side face of the circular truncated cone arranged on the outer edge of the rear part of the wedge-shaped nut 3 and the inner surface of the shape of the side face of the circular truncated cone arranged on the inner edge of the rear part of the tension and compression nut 4 generate strong extrusion, so that the internal threads of the four separation strips among the four separation seams arranged in the circumferential direction of the front part of the wedge-shaped nut 3 are strongly pressed onto the external threads of the screw rod of the connecting bolt 1, strong friction force is generated between the internal threads of the wedge-shaped nut 3 and the external threads of the screw rod of the connecting bolt 1, when the fastening force of the threaded connection of the tension and compression nut 4 and the fastening bolt 2 meets the technical requirements, the connection between the wedge-shaped nut 3 and the screw rod of the connecting bolt 1 is basically fixed relatively, and the connection among the fastening nut 2, the wedge-shaped nut 3 and the tension and compression nut 4 is basically fixed relatively. The tightening rotation direction of the tension/compression nut 4 is the same as the tightening rotation direction of the fastening nut 2, and the tightening rotation direction of the tension/compression nut 4 is the same as the tightening rotation direction of the wedge nut 3.

A third method (B) of fastening a bolt assembly without loosening, as shown in fig. 15 to 18, 12, 13, 30, and 31, is constituted by a fastening bolt 1, a fastening nut 2, a wedge nut 3, and a tension/compression nut 4, wherein a separation slit is provided in the wedge nut 3, four separation slits are provided in the circumferential direction on the rear end face of the wedge nut 3 used when the fastening bolt 1 and the fastening nut 2 are used to connect a fastening connector 5 and a connector 6, the four separation slits are extended in the axial direction to a position close to the front end of the wedge nut 3, and strong pressing is generated between the outer surface of the truncated cone side shape provided on the outer edge of the front portion of the wedge nut 3 and the inner surface of the truncated cone side shape provided on the inner edge of the rear portion of the fastening nut 2 in accordance with fastening connection of an internal thread provided on the inner edge of the front portion of the tension/compression nut 4 and an external thread provided on the outer edge of the rear portion of the fastening nut 2, strong extrusion is generated between the outer surface of the shape of the side face of the circular truncated cone arranged on the outer edge of the rear part of the wedge-shaped nut 3 and the inner surface of the shape of the side face of the circular truncated cone arranged on the inner edge of the rear part of the tension and compression nut 4, so that internal threads on four separation strips among four separation seams arranged in the circumferential direction of the rear part of the wedge-shaped nut 3 are strongly pressed onto external threads of a screw rod of the connecting bolt 1, strong friction force is generated between the internal threads of the wedge-shaped nut 3 and the external threads of the screw rod of the connecting bolt 1, when the fastening force of the threaded connection of the tension and compression nut 4 and the fastening bolt 2 meets the technical requirements, the connection between the wedge-shaped nut 3 and the screw rod of the connecting bolt 1 is basically fixed relatively, and the connection among the fastening nut 2, the wedge-shaped nut 3 and the tension and compression nut 4 is basically fixed relatively. The tightening rotation direction of the tension/compression nut 4 is the same as the tightening rotation direction of the fastening nut 2, and the tightening rotation direction of the tension/compression nut 4 is the same as the tightening rotation direction of the wedge nut 3.

The technical parameters of the outer surfaces of the truncated cone side shapes provided on the outer edges of the front portion and the rear portion of the wedge nut 3 shown in fig. 14 and 15, respectively, are substantially the same, the technical parameters of the inner surfaces of the truncated cone side shapes provided on the inner edge of the rear portion of the fastening nut 2 and the inner surfaces of the truncated cone side shapes provided on the inner edge of the rear portion of the tension and compression nut 4 are also substantially the same, the outer surfaces of the truncated cone side shapes provided on the outer edge of the front portion of the wedge nut 3 may be connected in cooperation with the inner surfaces of the truncated cone side shapes provided on the inner edge of the rear portion of the fastening nut 2, and may also be connected in cooperation with the inner surfaces of the truncated cone side shapes provided on the inner edge of the rear portion of the tension and compression nut 4, the outer surfaces of the truncated cone side shapes provided on the outer edge of the rear portion of the wedge nut 3 may be connected in cooperation with the inner surfaces of the truncated cone side shapes provided on the inner edge of the rear portion of the tension and compression nut 4, or may be fitted and connected to the inner surface of the truncated cone side shape provided on the inner edge of the rear portion of the fastening nut 2, that is, in the case where the wedge nut 3 is not divided into the front portion and the rear portion, a part of the wedge nut 3 may be fitted and connected to the inner surface of the truncated cone side shape provided on the inner edge of the rear portion of the fastening nut 2, and another part of the wedge nut 3 may be fitted and connected to the inner surface of the truncated cone side shape provided on the inner edge of the rear portion of the tension-compression nut 4. Fig. 18 is a schematic view of the wedge nut 3 expanded in the circumferential direction, wherein d-d shows the cross section line of the wedge nut 3 expanded in the circumferential direction.

The following is a fourth schematic view of a non-loose bolt assembly connection method:

1. FIG. 37 is a fourth schematic view of a non-loosening bolt assembly connection method

2. FIG. 38 is a schematic side view of P1-P1 of FIG. 37

3. FIG. 21 is a schematic cross-sectional view of R1-R1 of FIG. 37

4. FIG. 22 is a schematic cross-sectional view taken from S1 to S1 of FIG. 37

5. FIG. 23 is a schematic cross-sectional view taken at T1-T1 in FIG. 37

A fourth method for connecting a non-loose bolt assembly shown in fig. 37, 38, 21 to 23 is composed of a connecting bolt 1, a fastening wedge nut 2 and a tension and compression nut 3, wherein the fastening wedge nut 2 is formed by integrating a part of the fastening nut and a part of the wedge nut, as shown in fig. 37, a connecting schematic diagram is shown for connecting the connecting bolt 1, the fastening wedge nut 2 and the tension and compression nut 3 to a fastening connector 4 and a connector 5, when the connecting and fastening force of the fastening wedge nut 2 and the connecting bolt 1 reaches the technical requirement, the tension and compression nut 3 is connected on the outer edge of the fastening wedge nut 2, the internal thread arranged on the inner edge of the front part of the tension and compression nut 3 and the external thread arranged on the outer edge of the rear part of the fastening wedge nut 2 are connected and fastened, when the connecting and fastening force of the tension and compression nut 3 and the fastening wedge nut 2 reaches the technical requirement, strong extrusion is generated between the inner surface of the shape of the side surface of the circular truncated cone arranged on the inner edge of the tension and compression nut 3 and the outer surface arranged on the outer edge of the rear part of the fastening wedge-shaped nut 2, so that the connection of the internal threads on the three separation strips divided by the three separation seams arranged on the rear part of the fastening wedge-shaped nut 2 and the external threads on the screw rod of the connecting bolt 1 is relatively fixed, the mutual connection among the connecting bolt 1, the fastening wedge-shaped nut 2 and the tension and compression nut 3 is basically relatively fixed, and the purpose of preventing looseness is achieved. The tightening rotation direction of the tension/compression nut 3 and the tightening rotation direction of the tightening wedge nut 2 are the same.

The following is a fifth schematic view of a non-loose bolt assembly connection method:

1. FIG. 19 is a fifth schematic view of a non-loosening bolt assembly connection method

2. FIG. 20 is a schematic side view of P-P of FIG. 19

3. FIG. 21 is a schematic view of the section R-R in FIG. 19

4. FIG. 22 is a schematic view of the cross-section S-S in FIG. 19

5. FIG. 23 is a schematic cross-sectional view of T-T in FIG. 19

The fifth method for connecting the bolt assembly without loosening as shown in fig. 19 to 23 is composed of a connecting bolt 1, a fastening wedge nut 2 and a tension and compression nut 3, wherein the fastening wedge nut 2 is formed by integrating a part of the fastening nut and a part of the wedge nut, a section of internal thread arranged on the inner edge of the rear part of the tension and compression nut 3 is matched and connected with the external thread on the screw rod of the connecting bolt 1, as shown in fig. 31, a connection schematic diagram for connecting the fastening connecting piece 4 and the connecting piece 5 by the connecting bolt 1, the fastening wedge nut 2 and the tension and compression nut 3 is shown in fig. 31, when the connection fastening force of the fastening wedge nut 2 and the connecting bolt 1 reaches the technical requirement, the tension and compression nut 3 is connected on the outer edge of the fastening wedge nut 2, the internal thread arranged on the inner edge of the rear part of the tension and compression nut 3 is connected with the external thread on the screw rod of the connecting bolt 1, the internal thread arranged on the inner edge of the front part of the tension and compression nut 3 and the external thread arranged on the outer edge of the rear part of the fastening wedge-shaped nut 2 are connected and fastened, after the connection and fastening of the tension and compression nut 3 and the fastening wedge-shaped nut 2 meet the technical requirements, the inner surface of the shape of the side face of the circular truncated cone arranged on the inner edge of the tension and compression nut 3 is tightly pressed on the outer surface arranged on the outer edge of the rear part of the fastening wedge-shaped nut 2, the connection of the internal thread on three separation strips divided by three separation seams arranged on the rear part of the fastening wedge-shaped nut 2 and the external thread on the screw rod of the connecting bolt 1 is relatively fixed, the mutual connection among the connecting bolt 1, the fastening wedge-shaped nut 2 and the tension and compression nut 3 is relatively fixed basically, and the purpose of looseness prevention is achieved. The tightening rotation direction of the tension/compression nut 3 and the tightening rotation direction of the tightening wedge nut 2 are the same.

The following is a sixth schematic view of a non-loose bolt assembly connection method:

1. FIG. 24 is a sixth schematic view of a non-loosening bolt assembly connection method

2. FIG. 25 is a schematic side view of V-V of FIG. 24

3. FIG. 26 is a schematic cross-sectional view taken along line W-W in FIG. 24

4. FIG. 27 is a schematic view of section X-X in FIG. 24

5. FIG. 28 is a schematic cross-sectional view of the cross-section Y-Y in FIG. 24

As shown in fig. 24 to 28, the sixth method for connecting a non-loosening bolt assembly is composed of a connecting bolt 1, a fastening nut 2 and a wedge-shaped tension and compression nut 3, and is a schematic connection diagram for connecting the connecting bolt 1, the fastening nut 2 and the wedge-shaped tension and compression nut 3 to a fastening connector 4 and a connector 5, wherein the wedge-shaped tension and compression nut 3 is formed by integrating a part of the wedge-shaped nut and a part of the wedge-shaped nut, when the connection fastening force of the fastening nut 2 and the connecting bolt 1 meets the technical requirements, an internal thread provided on the inner edge of the front portion of the wedge-shaped tension and compression nut 3 and an external thread provided on the outer edge of the rear portion of the fastening nut 2 are fastened and connected, and when the fastening force of the screw connection of the wedge-shaped tension and compression nut 3 and the fastening nut 2 meets the technical requirements, an inner surface of a truncated cone side shape provided on the inner edge of the rear portion of the fastening nut 2 and an outer surface of a truncated cone side shape provided on the outer edge of the front portion of the wedge-shaped tension and compression nut 3 Strong extrusion is generated between the two wedge-shaped tension and compression nuts, so that the connection between the internal threads on the four separation strips divided by the four separation seams arranged at the front part of the wedge-shaped tension and compression nut 3 and the external threads on the screw rod of the connecting bolt 1 is relatively fixed, the mutual connection among the connecting bolt 1, the fastening nut 2 and the wedge-shaped tension and compression nut 3 is basically relatively fixed, and the purpose of looseness prevention is achieved. The tightening rotation direction of the wedge-shaped tension and compression nut 3 and the tightening rotation direction of the tightening nut 2 are the same.

The following is a seventh schematic view of a non-loose bolt assembly connection method:

1. FIG. 29 is a seventh schematic view of a non-loose bolt assembly connection method

2. FIG. 30 is a schematic side view of F-F of FIG. 29

3. FIG. 31 is a schematic sectional view taken along line G-G in FIG. 29

4. FIG. 32 is a schematic sectional view taken along line H-H in FIG. 29

5. FIG. 33 is a schematic cross-sectional view of J-J in FIG. 29

6. FIG. 34 is a side view of the wedge nut 3 of FIG. 29

7. FIG. 35 is a schematic cross-sectional view of the wedge nut 3 of FIG. 29

8. FIG. 36 is a schematic view showing the circumferential development of the male and female teeth fitting connection between the fastening nut 2 and the wedge nut 3 shown in FIG. 29

The seventh aspect of the non-loosening bolt assembly connecting method shown in fig. 29 to 36 is that, when the connecting bolt 1, the fastening nut 2, the wedge nut 3 and the tension and compression nut 4 connect the fastening and connecting member 5 and the connecting member 6, the concave and convex teeth provided in the circumferential direction at the rear portion of the fastening nut 2 and the concave and convex teeth provided in the circumferential direction at the front portion of the wedge nut 3 are coupled together, and when the tooth ends of the fastening nut 2 and the connecting bolt 1 coupled to the rear portion of the fastening nut 2 are substantially aligned with the screw end of the connecting bolt 1, the concave and convex teeth provided at the front portion of the wedge nut 3 and the concave and convex teeth provided at the rear portion of the fastening nut 2 are inserted and connected to each other, and the concave and convex teeth provided at the front portion of the wedge nut 3 and the concave and convex teeth provided at the rear portion of the fastening nut 2 are inserted and connected to each other, The connection of the convex teeth in the circumferential direction is basically relatively fixed, the connection of the concave and convex teeth arranged at the front part of the wedge nut 3 and the concave and convex teeth arranged at the rear part of the fastening nut 2 in the axial direction is basically relatively free, the concave and convex teeth arranged at the front part of the wedge nut 3 and the concave and convex teeth arranged at the rear part of the fastening nut 2 are axially gapped, when the internal thread of the wedge nut 3 is connected with the external thread on the screw rod of the connecting bolt 1, the fastening nut 2 synchronously rotates around the connecting bolt 1, when the fastening nut 2 is fastened, the wedge nut 3 and the fastening nut 2 synchronously rotate around the connecting bolt 1, after the fastening torque of the fastening nut 2 reaches the technical requirement, the tension and compression nut 4 is connected on the outer edges of the fastening nut 2 and the wedge nut 3, so that a section of the internal thread arranged on the inner edge of the front part of the tension and compression nut 4 is matched with a section of the external thread arranged on the outer edge of the rear part of the fastening nut 2, the inner surface of the truncated cone side shape provided on the inner edge of the rear portion of the tension and compression nut 4 is the same as the direction of the tightening torque of the wedge nut 3 and the direction of the friction torque generated on the outer surface of the truncated cone side shape provided on the outer edge of the rear portion of the wedge nut 3, and is the same as the tightening direction of the tightening nut 2, when the tightening torque of the tension and compression nut 4 meets the technical requirements, the tensile force generated between the tension and compression nut 4 and the tightening nut 2 is very large, strong extrusion is generated between the inner surface of the truncated cone side shape provided on the inner edge of the rear portion of the tension and compression nut 4 and the outer surface of the truncated cone side shape provided on the outer edge of the rear portion of the wedge nut 3, so that the friction force between the internal threads on the four separation strips divided by the four separation slits provided on the rear portion of the wedge nut 3 and the external threads on the screw of the connecting bolt 1 is strongly increased, the connection between the wedge nut 3 and the connecting bolt 1 is basically fixed relatively, a large friction force is generated between the internal thread on the inner edge of the fastening nut 2 and the side face of the external thread on the screw rod of the connecting bolt 1, and a large friction force is generated between the internal thread on the inner edge of the wedge nut 3 and the side face of the external thread on the screw rod of the connecting bolt 1, so that the mutual connection among the connecting bolt 1, the fastening nut 2, the wedge nut 3 and the tension and compression nut 4 is basically fixed relatively, and the anti-loosening purpose of connection is achieved. The tightening rotation direction of the tension/compression nut 4 is the same as the tightening rotation direction of the wedge nut 3, and the tightening rotation direction of the tension/compression nut 4 is the same as the tightening rotation direction of the tightening nut 2. Fig. 36 is a schematic view showing the circumferential development of the male and female teeth fitting connection between the fastening nut 2 and the wedge nut 3 shown in fig. 29, wherein b-b shows the cross sectional lines of the wedge nut 3 developed in the circumferential direction, and c-c shows the cross sectional lines of the fastening nut 2 developed in the circumferential direction.