阅读说明：本技术 一种链臂锯的减速机 (Speed reducer of chain arm saw ) 是由 刘智 于 2019-09-30 设计创作，主要内容包括：本发明涉及链臂锯领域,具体涉及一种链臂锯的减速机,包括：机箱、传动轴组件和蜗轮蜗杆组件,蜗轮蜗杆组件固定在机箱的内壁上,传动轴组件与蜗轮蜗杆组件连接,传动轴组件在蜗轮蜗杆组件的带动下运动,其中,蜗轮蜗杆组件包括主蜗杆、主蜗轮、副蜗杆和副蜗轮,主蜗杆的两端通过连接件固定机箱的内壁上,副蜗杆两端通过连接件固定机箱的内壁上,主蜗杆与主蜗轮相切,副蜗杆与副蜗轮相切,副蜗杆与主蜗轮相切,主蜗杆与副蜗杆成90°角,主蜗轮与副蜗轮成90°角。由于在链锯臂的减速机内设置两组互相垂直且联动的蜗轮蜗杆组件,从而有效的控制了链锯臂的链臂在进行作业时的切割速度和角度,从而实现对石材的精确切割。(The invention relates to the field of chain arm saws, in particular to a speed reducer of a chain arm saw, which comprises: the worm and gear assembly is fixed on the inner wall of the case, the transmission shaft assembly is connected with the worm and gear assembly, the transmission shaft assembly moves under the driving of the worm and gear assembly, the worm and gear assembly comprises a main worm, a main worm gear, an auxiliary worm and an auxiliary worm gear, two ends of the main worm are fixed on the inner wall of the case through connecting pieces, two ends of the auxiliary worm are fixed on the inner wall of the case through connecting pieces, the main worm is tangent to the main worm gear, the auxiliary worm is tangent to the auxiliary worm gear, the auxiliary worm is tangent to the main worm gear, the main worm and the auxiliary worm form an angle of 90 degrees, and the main worm and the auxiliary worm form an angle of 90 degrees. Because two groups of mutually perpendicular and linked worm and gear assemblies are arranged in the speed reducer of the chain saw arm, the cutting speed and angle of the chain arm of the chain saw arm during operation are effectively controlled, and accurate cutting of stone is realized.)

1. The utility model provides a speed reducer of chain arm saw, includes quick-witted case, drive shaft subassembly and worm gear subassembly, the worm gear subassembly is fixed on the inner wall of quick-witted case, the drive shaft subassembly with the worm gear subassembly is connected, the drive shaft subassembly is in the drive of worm gear subassembly moves down, a serial communication port, the worm gear subassembly includes main worm, main worm wheel, vice worm and vice worm wheel, the both ends of main worm are fixed through the connecting piece on the inner wall of quick-witted case, vice worm both ends are fixed through the connecting piece on the inner wall of quick-witted case, the main worm with the main worm wheel is tangent, vice worm with vice worm wheel is tangent, vice worm with the main worm wheel is tangent, the main worm with vice worm becomes 90 jiaos, the main worm wheel with vice worm wheel becomes 90 jiaos.

2. The speed reducer of a chain arm saw as claimed in claim 1, wherein the main worm is provided with an adjustment sheet for adjusting the rotation speed of the worm;

an adjusting sheet for adjusting the rotating speed of the worm is arranged on the auxiliary worm.

3. The speed reducer of a chain arm saw as claimed in claim 1, wherein the main worm is provided with an adjustment sheet for adjusting the rotation speed of the worm;

an adjusting sheet for adjusting the rotating speed of the worm is arranged on the auxiliary worm.

4. The speed reducer of a chain arm saw as claimed in claim 1, wherein the diameter of the primary worm gear is larger than the diameter of the secondary worm gear;

the diameter of the main worm is larger than that of the auxiliary worm.

5. The speed reducer of chain arm saw as claimed in claim 4, wherein the main worm wheel is sleeved on the hollow shaft;

the auxiliary worm wheel is sleeved on the hollow shaft.

6. The speed reducer of a chain arm saw as claimed in claim 5, wherein the hollow shaft is fixed to the housing by a flange, and a dial is provided between the hollow shaft and the housing.

7. The speed reducer of a chain arm saw as claimed in claim 5, wherein a flat key is arranged between the main worm wheel and the hollow shaft;

and a flat key is arranged between the auxiliary worm wheel and the hollow shaft.

8. The speed reducer of a chain arm saw as claimed in claim 1, wherein the drive shaft assembly comprises a cylindrical roller bearing, a main tapered roller bearing and a secondary tapered roller bearing, the cylindrical roller bearing is tangent to the main worm, the cylindrical roller bearing is parallel to the main worm wheel, the main tapered roller bearing is tangent to the main worm, the main tapered roller bearing is parallel to the main worm wheel, the main tapered roller bearing is disposed outside the cylindrical roller bearing, the secondary tapered roller bearing is tangent to the secondary worm, and the main tapered roller bearing is parallel to the secondary worm wheel.

9. The speed reducer of chain arm saw as claimed in claim 8, wherein a skeleton oil seal is arranged between the main worm and the main tapered roller bearing;

and a framework oil seal is arranged between the auxiliary worm and the auxiliary tapered roller bearing.

10. The speed reducer of a chain arm saw as claimed in any one of claims 1 to 9, wherein a breather plug is provided on the case, and a ball valve connection pipe is provided on the case.

Technical Field

The invention relates to the field of chain arm saws, in particular to a speed reducer of a chain arm saw.

Background

Chain arm saw carries out the stone material mining as an efficient stone material processing machinery, and it adopts the blasting mode for the tradition, can effectively avoid the massif to collapse, has guaranteed operation personnel's life safety. When the chain arm saw is used for cutting stone, the proper size can be cut by accurately holding the cutting speed and angle.

However, when the stone material is cut by the chain arm saw at present, the chain arm of the chain arm saw is not easy to control, so that the cut stone material has low yield, and the requirement of stone material accurate processing cannot be met.

Disclosure of Invention

The invention aims to provide a speed reducer of a chain arm saw, which solves the technical problems.

The technical problem solved by the invention can be realized by adopting the following technical scheme:

the utility model provides a speed reducer of chain arm saw, includes quick-witted case, drive shaft subassembly and worm gear subassembly, the worm gear subassembly is fixed on the inner wall of quick-witted case, the drive shaft subassembly with the worm gear subassembly is connected, the drive shaft subassembly is in the drive of worm gear subassembly moves down, wherein, the worm gear subassembly includes main worm, main worm wheel, vice worm and vice worm wheel, the both ends of main worm are fixed through the connecting piece on the inner wall of quick-witted case, vice worm both ends are fixed through the connecting piece on the inner wall of quick-witted case, the main worm with the main worm wheel is tangent, vice worm with vice worm wheel is tangent, vice worm with the main worm wheel is tangent, the main worm with vice worm becomes 90 jiaos, the main worm wheel with vice worm wheel becomes 90 jiaos.

According to the chain arm saw, the speed of the chain arm saw can be effectively controlled by adopting a two-stage worm gear for speed reduction. The transmission is carried out by adopting a mode that a main worm wheel is directly tangent to an auxiliary worm, and two sets of worm wheels and worms form an angle of 90 degrees, so that the transmission shaft in the case can be controlled at different directions, and the chain arm saw is controlled to cut stone materials with the size meeting the requirements.

Optionally, the main worm is provided with an adjusting sheet for adjusting the rotation speed of the worm; an adjusting sheet for adjusting the rotating speed of the worm is arranged on the auxiliary worm.

Optionally, the transmission shaft assembly includes cylindrical roller bearing, main tapered roller bearing and vice tapered roller bearing, cylindrical roller bearing with the main worm is tangent, cylindrical roller bearing with main worm wheel is parallel, main tapered roller bearing with main worm is tangent, main tapered roller bearing with main worm wheel is parallel, main tapered roller bearing set up in cylindrical roller bearing's the outside, vice tapered roller bearing with vice worm is tangent, main tapered roller bearing with vice worm wheel is parallel.

Optionally, the diameter of the main worm wheel is larger than that of the auxiliary worm wheel; the diameter of the main worm is larger than that of the auxiliary worm.

Optionally, the main worm gear is sleeved on the hollow shaft; the auxiliary worm wheel is sleeved on the hollow shaft.

Preferably, the hollow shaft is fixed on the case through a flange, and a dial is arranged between the hollow shaft and the case.

The dial is used for adjusting and monitoring the rotating speed of the worm and gear.

Optionally, a worm brake pad is arranged on the main worm or the auxiliary worm. The worm brake plate is used for emergently stopping the rotation of the worm.

Optionally, a ventilation plug is arranged on the case, and a ball valve connecting pipe is arranged on the case.

The pressure of the case can be effectively adjusted by arranging the ventilating plug and the ball valve connecting pipe on the case, and the damage to the internal worm and gear and the transmission bearing is avoided.

Optionally, a flat key is arranged between the main worm gear and the hollow shaft; and a flat key is arranged between the auxiliary worm wheel and the hollow shaft.

Optionally, a framework oil seal is arranged between the main worm and the main tapered roller bearing; and a framework oil seal is arranged between the auxiliary worm and the auxiliary tapered roller bearing.

Has the advantages that: because two groups of mutually perpendicular and linked worm and gear assemblies are arranged in the speed reducer of the chain saw arm, the cutting speed and angle of the chain arm of the chain saw arm during operation are effectively controlled, and accurate cutting of stone is realized.

Drawings

Fig. 1 is a perspective view of a speed reducer of a chain arm saw of the present invention;

FIG. 2 is a front view of a speed reducer of a chain arm saw according to the present invention;

FIG. 3 is a rear view of a speed reducer of a chain arm saw according to the present invention;

FIG. 4 is a left side view of the speed reducer of the chain arm saw of the present invention;

FIG. 5 is a schematic cross-sectional view taken along line A-A of a speed reducer of a chain arm saw according to the present invention;

FIG. 6 is a schematic cross-sectional view taken along line B-B of a speed reducer of a chain arm saw according to the present invention;

FIG. 7 is a schematic cross-sectional view of a chain saw reducer of the present invention taken along line C-C;

in the figure: 1. a chassis; 2. a flange plate; 3. a venting plug; 4. a ball valve connecting pipe; 5. a dial scale; 6. a bearing gland; 7. a hollow shaft; 8. a main cover plate of the chassis; 9. a main tapered roller bearing; 10. a top cover plate of the case; 11. a case side cover plate; 12. a gasket; 13. a speed reducer connecting plate; 14. a first framework oil seal; 15. a main worm gear; 16. a worm nut; 17. an adjustment sheet; 18. a cylindrical roller bearing; 19. a main worm; 20. a flat key 21, a screw-in type round oil pointer; 22. a sub tapered roller bearing; 23. a secondary worm end cap; 24. a second framework oil seal; 25. a secondary worm 26 and a secondary worm wheel.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific drawings.

Referring to fig. 1 to 7, a speed reducer of a chain arm saw comprises a case 1, a transmission shaft assembly and a worm gear assembly, wherein the worm gear assembly is fixed on the inner wall of the case 1, the transmission shaft assembly is connected with the worm gear assembly, and the transmission shaft assembly moves under the driving of the worm gear assembly, wherein the worm gear assembly comprises a main worm 19, a main worm wheel 15, an auxiliary worm 25 and an auxiliary worm wheel 26, two ends of the main worm 19 are fixed on the inner wall of the case 1 through a connecting piece composed of a worm nut 16 and a flange 2, two ends of the auxiliary worm 25 are also fixed on the inner wall of the case 1 through a connecting piece composed of a worm nut 16 and a flange 2, the main worm 19 is tangent to the main worm wheel 15, the auxiliary worm 25 is tangent to the auxiliary worm wheel 26, the auxiliary worm 25 is tangent to the main worm wheel 15, the main worm and the auxiliary worm form an angle of 90 degrees, and the main worm wheel and the. A top cover plate 10 is disposed on the top end of the chassis 1, and the top cover plate 10 can seal the chassis to prevent contaminants from entering the chassis. The front end of the auxiliary worm is provided with an auxiliary worm end cover 23 which can effectively protect the auxiliary worm. The main worm wheel 15 or the auxiliary worm wheel is sleeved on the hollow shaft 7, the hollow shaft 7 is fixed on the case through the flange plate 2, and the dial 5 is arranged between the hollow shaft and the case. The dial is used for adjusting and monitoring the rotating speed of the worm and gear. A flat key 20 is provided between the main or auxiliary worm wheel and the hollow shaft. A first framework oil seal 14 is arranged between the main worm and the main tapered roller bearing 9, and a second framework oil seal 24 is arranged between the auxiliary worm and the auxiliary tapered roller bearing 22. A main box cover plate 8 is arranged on the outer side of the main tapered roller bearing, the main box cover plate 8 is connected with the case 1 through a hinge, and the main tapered roller bearing can be maintained by opening the main box cover plate 8. A reducer connecting plate 13 is arranged at the upper end of the first framework oil seal 14, and a gasket 12 can be arranged between the main tapered roller bearing and the main worm gear 15 to reduce the friction loss between the main tapered roller bearing and the main worm gear. A screw-in type round oil pointer 21 is also arranged on the case and used for monitoring the oil quantity in the case. A case side cover plate 11 is further disposed on the side wall of the case 1, and the case side cover plate can be conveniently opened from the side to repair or replace components in the case. In order to keep the position of the worm unchanged, a worm nut 16 is arranged on the main worm or the auxiliary worm, and the worm nut can firmly fix the main worm or the auxiliary worm on the inner wall of the case without displacement.

In this embodiment, the diameter of the primary worm gear is larger than the diameter of the secondary worm gear, and the diameter of the primary worm gear is larger than the diameter of the secondary worm gear. Therefore, the position and the cutting speed of the chain arm saw can be effectively adjusted during transmission.

As can be seen from fig. 6, the main worm 19 or the auxiliary worm 25 is provided with an adjustment tab 17 for adjusting the rotation speed of the worm. A worm brake pad can be arranged on the main worm or the auxiliary worm; the worm brake plate is used for emergently stopping the rotation of the worm. The catch may be located at one end of the worm with the tab, or may be located at one end of the worm with the tab at the other end of the worm. In this embodiment, it is preferable that the catch and the tab are located at the same end of the worm, the catch is located one fifth of the length of the worm from the end of the worm, and the tab is located one fifth of the length of the worm from the end of the worm, that is, the distance between the catch and the tab is one fifth of the length of the entire worm. The brake disc and the adjusting sheet are arranged at one end of the worm instead of two ends, so that the brake disc and the transmission disc are matched with each other, and the running condition of the worm is adjusted in time.

According to fig. 5, 6 and 7, the transmission shaft assembly comprises a cylindrical roller bearing 18, a main tapered roller bearing 9 and an auxiliary tapered roller bearing 22, the cylindrical roller bearing is tangent to the main worm, the cylindrical roller bearing is parallel to the main worm wheel, the main tapered roller bearing is tangent to the main worm, the main tapered roller bearing is parallel to the main worm wheel, the main tapered roller bearing is arranged at the outer side of the cylindrical roller bearing, the auxiliary tapered roller bearing is tangent to the auxiliary worm, and the main tapered roller bearing is parallel to the auxiliary worm wheel. A bearing gland 6 is also provided on the outside of the cylindrical roller bearing 18 to enclose the cylindrical roller bearing. In the embodiment, the chain arm direction and the cutting speed of the chain arm saw can be effectively adjusted through the mutual matching of the cylindrical roller bearing and the tapered roller bearing, the main worm and the auxiliary worm.

Optionally, a vent plug 3 is arranged on the front side of the case, the vent plug is generally arranged at the upper right of the hollow shaft, and a ball valve connecting pipe 4 is arranged at the lower part of the left side or the right side of the case. The pressure of the case can be effectively adjusted by arranging the ventilating plug and the ball valve connecting pipe on the case, and the damage to the internal worm and gear and the transmission bearing is avoided.

When the worm gear is in work, the starting motor or the internal combustion engine drives the hollow shaft where the main worm wheel is located to axially rotate, the main worm wheel starts to move under the driving of the hollow shaft, and then the main worm, the auxiliary worm and the auxiliary worm wheel are sequentially driven to rotate. Under the rotation drive of the worm gear, the cylindrical roller bearing and the tapered roller bearing start to rotate at different rotating speeds. The cylindrical roller bearing and the tapered roller bearing are connected with the chain arm, and the chain arm is driven to cut stone or adjust the angle through the rotation of the cylindrical roller bearing and the tapered roller bearing.

In the embodiment, the chain arm of the chain arm saw can be effectively controlled in a speed reduction mode by adopting the two-stage worm gear. The transmission is carried out by adopting a mode that a main worm wheel is directly tangent to an auxiliary worm, and two sets of worm wheels and worms form an angle of 90 degrees, so that the transmission shaft in the case can be controlled at different directions, and the chain arm saw is controlled to cut stone materials with the size meeting the requirements.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.