阅读说明：本技术 一种耐冲击磨损的挖掘机斗齿及其生产工艺 (Impact-wear-resistant excavator bucket tooth and production process thereof ) 是由 罗绍康 于 2021-08-11 设计创作，主要内容包括：本发明提供一种耐冲击磨损的挖掘机斗齿及其生产工艺,属于铲斗制备技术领域,该耐冲击磨损的挖掘机斗齿,包括主斗齿件,主斗齿件内开设有容置空隙,容置空隙内设有副斗齿件,副斗齿件通过弹性缓震机构和主斗齿件相连接；容置空隙内设有减震板,减震板设于副斗齿件的底侧,减震板用来减少斗齿受到的冲击,减震板通过减震机构和副斗齿件相连接；主斗齿件的侧端设有斗齿保护壳,斗齿保护壳用来减少主斗齿件受到的摩擦力,降低主斗齿件的磨损,斗齿保护壳通过往复循环组件设于主斗齿件的侧端,主斗齿件内设有传动机构用来驱动往复循环组件运动,有效的减少斗齿和齿座之间发生的刚性碰撞,大大的增加了斗齿的使用寿命。(The invention provides an impact wear resistant excavator bucket tooth and a production process thereof, belonging to the technical field of bucket preparation, the impact wear resistant excavator bucket tooth comprises a main bucket tooth piece, wherein a containing gap is formed in the main bucket tooth piece, an auxiliary bucket tooth piece is arranged in the containing gap, and the auxiliary bucket tooth piece is connected with the main bucket tooth piece through an elastic cushioning mechanism; the damping plate is arranged at the bottom side of the auxiliary bucket tooth piece and is used for reducing the impact on the bucket tooth, and the damping plate is connected with the auxiliary bucket tooth piece through a damping mechanism; the side of main tooth spare of fighting is equipped with the bucket tooth protective housing, and the bucket tooth protective housing is used for reducing the frictional force that main tooth spare of fighting received, reduces the wearing and tearing of main tooth spare of fighting, and the side of main tooth spare of fighting is located through the reciprocating cycle subassembly to the bucket tooth protective housing, is equipped with drive mechanism in the main tooth spare of fighting and is used for driving the motion of reciprocating cycle subassembly, the rigidity collision that takes place between effectual reduction bucket tooth and the toothholder, great increase the life of bucket tooth.)

1. The utility model provides an impact wear resistant excavator bucket tooth, includes main bucket tooth spare (1), its characterized in that: an accommodating gap (103) is formed in the main bucket tooth part (1), an auxiliary bucket tooth part (102) is arranged in the accommodating gap (103), and the auxiliary bucket tooth part (102) is connected with the main bucket tooth part (1) through an elastic cushioning mechanism;

the accommodating gap (103) is internally provided with a damping plate (3), the damping plate (3) is arranged at the bottom side of the auxiliary bucket tooth part (102), the damping plate (3) is used for reducing the impact on the bucket tooth, and the damping plate (3) is connected with the auxiliary bucket tooth part (102) through a damping mechanism;

a bucket tooth protecting shell (101) is arranged at the side end of the main bucket tooth piece (1), the bucket tooth protecting shell (101) is used for reducing the friction force borne by the main bucket tooth piece (1) and reducing the abrasion of the main bucket tooth piece (1), the bucket tooth protective shell (101) is arranged at the side end of the main bucket tooth piece (1) through a reciprocating circulation assembly, a transmission mechanism is arranged in the main bucket tooth part (1) and is used for driving the reciprocating circulating component to move, the side end of the damping plate (3) is movably hinged with a first movable rod (4) through a hinge shaft, the side end of the first movable rod (4) is movably hinged with a second movable rod (401) through a hinge shaft, the side end of the auxiliary bucket tooth piece (102) is fixedly connected with a fixed rod (402), the second movable rod (401) is hinged and movably hinged with the side end of the fixed rod (402), the second movable rod (401) is connected with the transmission mechanism to drive the transmission mechanism to move.

2. The impact wear resistant excavator tooth of claim 1, wherein: the elastic cushioning mechanism comprises a limiting groove (206) arranged in a main bucket tooth piece (1), a first sliding groove (205) is formed in the main bucket tooth piece (1), the limiting groove (206) is respectively communicated with the first sliding groove (205) and an accommodating gap (103), a sliding barrel (207) is arranged in the first sliding groove (205), the side wall of the sliding barrel (207) is fixedly connected with a return spring (204), the side end of the return spring (204) is fixedly connected with a sliding rod (203), the sliding rod (203) is slidably connected in the return spring (204), a first sliding block (201) is slidably connected in the first sliding groove (205), the first sliding block (201) is slidably connected in the limiting groove (206), the first sliding block (201) is connected to the side end of the sliding rod (203), the bottom end of the first sliding block (201) is fixedly connected with a cushioning spring (202), and the side end of the cushioning spring (202) is fixedly connected to the side wall of the first sliding groove (205), the shock absorption spring (202) is sleeved on the circumferential surfaces of the sliding rod (203) and the sliding barrel (207), and the first sliding block (201) is fixedly connected to the side end of the auxiliary bucket tooth part (102).

3. The impact wear resistant excavator tooth of claim 2, wherein: a limiting rod (2) is arranged in the limiting groove (206), and the first sliding block (201) is connected to the circumferential surface of the limiting rod (2) in a sliding mode.

4. The impact wear resistant excavator tooth of claim 3, wherein: the damping mechanism comprises two first supporting rods (301) hinged to the top end of the damping plate (3) in a hinged mode, the bottom end of the auxiliary bucket tooth part (102) is hinged to two second supporting rods (304) in a hinged mode through a hinge shaft in a movable mode, the side ends of the two second supporting rods (304) are hinged to mounting blocks (302) in a hinged mode in a movable mode, the two first supporting rods (301) are hinged to the two mounting blocks (302) in a hinged mode through the hinge shaft in a movable mode, and two strong springs (303) are fixedly connected between the end portions, close to each other, of the two strong springs (303).

5. The impact wear resistant excavator tooth of claim 4, wherein: the side end of the auxiliary bucket tooth part (102) is fixedly connected with a return spring (403), and the side end of the return spring (403) is fixedly connected with the side end of the fixing rod (402).

6. The impact wear resistant excavator tooth of claim 5, wherein: the transmission mechanism comprises a placing block (503) fixedly connected in the main bucket tooth part (1), a first groove (504) is arranged in the placing block (503), a partition plate (505) is fixedly connected in the placing block (503), the side end of the second movable rod (401) is fixedly connected with a U-shaped block (404), the side end of the U-shaped block (404) is rotatably connected with a first rolling shaft (501), the first rolling shaft (501) is movable inwards and penetrates through the other side end of the U-shaped block (404), the circumferential surface of the first rolling shaft (501) is fixedly connected with a rolling gear (405), a rack (5) is fixedly connected in the placing block (503), the rack (5) is meshed with the rolling gear (405), the side end of the placing block (503) and the partition plate (505) are both provided with a first limiting sliding groove (502), two sides of the first rolling shaft (501) are respectively connected in the two first limiting sliding grooves (502) in a sliding manner.

7. The impact wear resistant excavator tooth of claim 6, wherein: the side fixedly connected with disc (6) of first roll axis (501), the side fixedly connected with second fixed axle (606) of disc (6), the circumference surface of second fixed axle (606) rotates and is connected with third movable rod (601), the side of third movable rod (601) articulates through articulated too big has fourth movable rod (602), the side of placing piece (503) rotates and is connected with axis of rotation (603), axis of rotation (603) inside activity runs through to placing piece (503) in, the side of fourth movable rod (602) is connected in one side of axis of rotation (603), the opposite side of axis of rotation (603) is connected with fifth movable rod (604).

8. The impact wear resistant excavator tooth of claim 7, wherein: the reciprocating circulation assembly comprises a third fixing shaft (7) fixedly connected to the side end of the placing block (503), the circumferential surface of the third fixing shaft (7) is rotatably connected with a connecting plate (701), a movable groove (702) is formed in the connecting plate (701), the side end of the fifth movable rod (604) is fixedly connected with a first fixing shaft (605), and the first fixing shaft (605) is slidably connected into the movable groove (702).

9. The impact wear resistant excavator tooth of claim 8, wherein: a third groove (707) is arranged in the main bucket tooth piece (1), the third groove (707) is communicated with the accommodating gap (103), a second sliding block (704) is connected in the third groove (707) in a sliding manner, a second groove (705) is formed in the side end of the second sliding block (704), one side of the second sliding block (704) is rotatably connected with a second rolling shaft (703), the second rolling shaft (703) is movable inwards and penetrates through the other side of the second sliding block (704), two second limiting sliding grooves (706) are formed in the main bucket tooth piece (1), the two second limiting sliding grooves (706) are communicated with a third groove (707), two sides of the second rolling shaft (703) are respectively connected in the two second limiting sliding grooves (706) in a sliding way, the second rolling shaft (703) is connected in the movable groove (702) in a sliding mode, and the side end of the second sliding block (704) is fixedly connected to the side end of the bucket tooth protective shell (101).

10. The production process of the impact wear resistant excavator bucket tooth is characterized by comprising the following steps: the production process of the impact wear resistant excavator bucket tooth comprises the following steps:

s1: preheating a blank: smelting the raw materials by an electric arc furnace or a medium frequency induction furnace to obtain molten steel, and carrying out LF refining on the molten steel, wherein the tapping temperature is 1550 +/-20 ℃;

s2: forging and stamping: the forging and pressing machine is used for applying pressure to the steel material of the bucket teeth, the pressure is formed in a high-temperature extrusion mode, crystal materials in the forge piece are thinned, and the crystal materials generate plastic deformation to obtain certain mechanical performance, the organization structure of metal can be improved after the metal is forged, and the bucket teeth can be guaranteed to have good mechanical performance, wear resistance and longer service life;

s3: preparing a mould: smearing a lubricant inside the female die and outside the male die, and heating to 70-80 ℃;

s4: and (3) cooling: taking out the forming bucket tooth part, placing the forming bucket tooth part in an air cooling chamber, and carrying out ventilation cooling at the wind speed of 0.2-0.5 m/s;

s5: assembling: and (3) carrying out part assembly on the cooled and molded bucket tooth part, and assembling the bucket tooth part into a complete impact-resistant wear bucket tooth through the matching of all components.

Technical Field

The invention belongs to the technical field of bucket preparation, and particularly relates to an impact wear resistant excavator bucket tooth and a production process thereof.

Background

The excavator bucket tooth is an important part on an excavator, is similar to a tooth of a person, is also a wearing part, is a combined bucket tooth consisting of a tooth holder and a tooth tip, and is connected with the tooth holder and the tooth tip through a pin shaft. Because the worn and failed part of the bucket tooth is the tooth tip, the tooth tip can be replaced.

The existing bucket tooth can generate rigid impact with the tooth holder when the bucket works, the damage of the bucket tooth is easily caused, the resistance is increased in the excavating process to influence the excavating efficiency, the service life of the bucket tooth is also reduced, and when the tooth tip part firstly contacts the surface of a material, the tooth tip part is impacted strongly due to high speed. If the yield strength of the bucket tooth is low, plastic deformation will occur at the tip. As the excavation depth is increased, the stress condition of the bucket teeth is changed. When the bucket tooth cuts the material, relative motion takes place for bucket tooth and material, produces very big positive extrusion force on the surface to produce great frictional force between bucket tooth working face and material, accelerate the damage of bucket tooth easily, make its excessive wear.

Disclosure of Invention

The invention aims to provide an impact wear resistant excavator bucket tooth, and aims to solve the problems that when a bucket in the prior art works, rigid impact can be generated between the bucket and a tooth holder, the bucket tooth is easily damaged, resistance in the excavating process is increased, excavating efficiency is affected, and the service life of the bucket tooth is shortened.

In order to achieve the purpose, the invention provides the following technical scheme:

an impact wear resistant excavator bucket tooth comprises a main bucket tooth piece, wherein a containing gap is formed in the main bucket tooth piece, an auxiliary bucket tooth piece is arranged in the containing gap, and the auxiliary bucket tooth piece is connected with the main bucket tooth piece through an elastic cushioning mechanism;

the damping plate is arranged at the bottom side of the auxiliary bucket tooth piece and used for reducing the impact on the bucket tooth, and the damping plate is connected with the auxiliary bucket tooth piece through a damping mechanism;

the side of main fill tooth spare is equipped with the bucket tooth protective housing, the bucket tooth protective housing is used for reducing the frictional force that main fill tooth spare received, reduces the wearing and tearing of main fill tooth spare, the bucket tooth protective housing locates the side of main fill tooth spare through the reciprocating cycle subassembly, be equipped with drive mechanism in the main fill tooth spare and be used for driving the motion of reciprocating cycle subassembly, the side of damper plate articulates through the hinge activity has first movable rod, the side of first movable rod articulates through the hinge activity has the second movable rod, the side fixedly connected with dead lever of vice fill tooth spare, the second movable rod articulates in the side of dead lever through articulated activity, second movable rod and drive mechanism are connected and are used for driving drive mechanism and move.

As a preferable proposal of the invention, the elastic shock absorption mechanism comprises a limit groove arranged in the main bucket tooth piece, a first sliding groove is arranged in the main bucket tooth piece, the limiting groove is respectively communicated with the first sliding groove and the containing gap, a sliding cylinder is arranged in the first sliding chute, the side wall of the sliding cylinder is fixedly connected with a return spring, the side end of the return spring is fixedly connected with a sliding rod, the sliding rod is connected in the return spring in a sliding way, the first sliding chute is connected with a first sliding block in a sliding way, the first sliding block is connected in the limit groove in a sliding manner, the first sliding block is connected at the side end of the sliding rod, the bottom end of the first sliding block is fixedly connected with a cushioning spring, the side end of the cushioning spring is fixedly connected with the side wall of the first sliding chute, the shock absorption spring is sleeved on the circumferential surfaces of the sliding rod and the sliding cylinder, and the first sliding block is fixedly connected to the side end of the auxiliary bucket tooth part.

As a preferable scheme of the present invention, a limiting rod is disposed in the limiting groove, and the first slider is slidably connected to a circumferential surface of the limiting rod.

As a preferable scheme of the invention, the damping mechanism comprises two first supporting rods which are hinged on the top end of the damping plate in a hinged and movable manner, the bottom end of the auxiliary bucket tooth part is hinged with two second supporting rods in a movable manner through a hinge shaft, the side ends of the two second supporting rods are hinged with mounting blocks in a hinged and movable manner, the two first supporting rods are respectively hinged in the two mounting blocks in a movable manner through the hinge shaft, and a strong spring is fixedly connected between the adjacent end parts of the two strong springs.

In a preferred aspect of the present invention, a return spring is fixedly connected to a side end of the sub bucket tooth, and a side end of the return spring is fixedly connected to a side end of the fixing rod.

As a preferable scheme of the invention, the transmission mechanism comprises a placing block fixedly connected in the main bucket tooth part, a first groove is formed in the placing block, a partition plate is fixedly connected in the placing block, a U-shaped block is fixedly connected at the side end of the second movable rod, a first rolling shaft is rotatably connected at the side end of the U-shaped block, the first rolling shaft is movably penetrated through the other side end of the U-shaped block inwards, a rolling gear is fixedly connected on the circumferential surface of the first rolling shaft, a rack is fixedly connected in the placing block and meshed with the rolling gear, first limiting sliding grooves are formed in the side end of the placing block and the partition plate, and two sides of the first rolling shaft are respectively connected in the two first limiting sliding grooves in a sliding manner.

As a preferable scheme of the present invention, a disc is fixedly connected to a side end of the first rolling shaft, a second fixed shaft is fixedly connected to a side end of the disc, a third movable rod is rotatably connected to a circumferential surface of the second fixed shaft, a fourth movable rod is hinged to a side end of the third movable rod through an oversized hinge, a rotating shaft is rotatably connected to a side end of the placing block, the rotating shaft is movably inserted into the placing block inward, a side end of the fourth movable rod is connected to one side of the rotating shaft, and a fifth movable rod is connected to the other side of the rotating shaft.

As a preferable scheme of the present invention, the reciprocating circulation assembly includes a third fixed shaft fixedly connected to a side end of the placement block, a connecting plate is rotatably connected to a circumferential surface of the third fixed shaft, a movable groove is formed in the connecting plate, a side end of the fifth movable rod is fixedly connected to a first fixed shaft, and the first fixed shaft is slidably connected to the movable groove.

As a preferable scheme of the present invention, a third groove is formed in the main bucket tooth component, the third groove is communicated with the accommodating gap, a second slider is slidably connected in the third groove, a second groove is formed in a side end of the second slider, one side of the second slider is rotatably connected with a second rolling shaft, the second rolling shaft is inwardly and movably penetrated through the other side of the second slider, two second limiting chutes are formed in the main bucket tooth component, the two second limiting chutes are both communicated with the third groove, two sides of the second rolling shaft are respectively slidably connected in the two second limiting chutes, the second rolling shaft is slidably connected in the movable chute, and a side end of the second slider is fixedly connected to a side end of the bucket tooth protecting shell.

A production process of impact wear resistant excavator bucket teeth comprises the following steps:

s1: preheating a blank: smelting the raw materials by an electric arc furnace or a medium frequency induction furnace to obtain molten steel, and carrying out LF refining on the molten steel, wherein the tapping temperature is 1550 +/-20 ℃;

s2: forging and stamping: the forging and pressing machine is used for applying pressure to the steel material of the bucket teeth, the pressure is formed in a high-temperature extrusion mode, crystal materials in the forge piece are thinned, and the crystal materials generate plastic deformation to obtain certain mechanical performance, the organization structure of metal can be improved after the metal is forged, and the bucket teeth can be guaranteed to have good mechanical performance, wear resistance and longer service life;

s3: preparing a mould: smearing a lubricant inside the female die and outside the male die, and heating to 70-80 ℃;

s4: and (3) cooling: taking out the forming bucket tooth part, placing the forming bucket tooth part in an air cooling chamber, and carrying out ventilation cooling at the wind speed of 0.2-0.5 m/s;

s5: assembling: and (3) carrying out part assembly on the cooled and molded bucket tooth part, and assembling the bucket tooth part into a complete impact-resistant wear bucket tooth through the matching of all components.

Compared with the prior art, the invention has the beneficial effects that:

1. in the device: through damper and the cooperation of elasticity bradyseism mechanism, can effectual reduction bucket tooth and the rigid collision that takes place between the toothholder, great increase the life of bucket tooth, and the resistance that receives reduces, helps accelerating work efficiency at the excavation in-process.

2. In the device: through utilizing scraper bowl during operation damper to drive the shock attenuation board and remove for power, cooperate through drive mechanism and reciprocating cycle mechanism to this makes the protection shield of both sides fall and reduces the friction between bucket tooth both sides and the material for the bucket tooth becomes non-deformable, reduces the extrusion force of material to the bucket tooth, makes it not wear out so fast.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a front view of the present invention;

FIG. 2 is a side cross-sectional view of the present invention;

FIG. 3 is a first partial perspective view of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3 according to the present invention;

FIG. 5 is a top cross-sectional view of the present invention;

FIG. 6 is a second partial perspective view of the present invention;

FIG. 7 is a first partial cross-sectional view of the present invention;

FIG. 8 is a second partial cross-sectional view of the present invention;

FIG. 9 is a third partial perspective view of the present invention;

FIG. 10 is a fourth partial perspective view of the present invention;

FIG. 11 is a fifth partial perspective view of the present invention;

FIG. 12 is a sixth partial perspective view of the present invention;

fig. 13 is a third partial cross-sectional view of the present invention.

In the figure: 1. a main bucket tooth member; 101. a bucket tooth protective shell; 102. the auxiliary bucket tooth piece; 103. accommodating the gap; 2. a limiting rod; 201. a first slider; 202. a cushioning spring; 203. a slide bar; 204. a return spring; 205. a first chute; 206. a limiting groove; 207. a slide cylinder; 3. a damper plate; 301. a first support bar; 302. mounting blocks; 303. a strong spring; 304. a second support bar; 4. a first movable bar; 401. a second movable bar; 402. fixing the rod; 403. a return spring; 404. a U-shaped block; 405. a rolling gear; 5. a rack; 501. a first roll axis; 502. a first limiting chute; 503. placing the blocks; 504. a first groove; 505. a partition plate; 6. a disc; 601. a third movable bar; 602. a fourth movable bar; 603. a rotating shaft; 604. a fifth movable bar; 605. a first fixed shaft; 606. a second fixed shaft; 7. a third fixed shaft; 701. a connecting plate; 702. a movable groove; 703. a second roll axis; 704. a second slider; 705. a second groove; 706. a second limiting chute; 707. and a third groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-13, the present invention provides the following technical solutions: an impact wear resistant excavator bucket tooth comprises a main bucket tooth part 1, wherein a containing gap 103 is formed in the main bucket tooth part 1, an auxiliary bucket tooth part 102 is arranged in the containing gap 103, and the auxiliary bucket tooth part 102 is connected with the main bucket tooth part 1 through an elastic cushioning mechanism;

the damping plate 3 is arranged in the accommodating gap 103, the damping plate 3 is arranged at the bottom side of the auxiliary bucket tooth part 102, the damping plate 3 is used for reducing the impact on the bucket tooth, and the damping plate 3 is connected with the auxiliary bucket tooth part 102 through a damping mechanism;

the side of main fill tooth spare 1 is equipped with bucket tooth protective housing 101, bucket tooth protective housing 101 is used for reducing the frictional force that main fill tooth spare 1 received, reduce the wearing and tearing of main fill tooth spare 1, bucket tooth protective housing 101 locates the side of main fill tooth spare 1 through reciprocal circulation subassembly, be equipped with drive mechanism in the main fill tooth spare 1 and be used for driving the motion of reciprocal circulation subassembly, the side of shock attenuation board 3 articulates through the hinge activity has first movable rod 4, the side of first movable rod 4 articulates through the hinge activity has second movable rod 401, the side fixedly connected with dead lever 402 of vice fill tooth spare 102, second movable rod 401 articulates in the side of dead lever 402 through the hinge activity, second movable rod 401 is connected with drive mechanism and is used for driving drive mechanism and moves.

In the specific embodiment of the invention, the bucket teeth are divided into a main bucket tooth member 1 and an auxiliary bucket tooth member 102, the main bucket tooth member 1 and the auxiliary bucket tooth member 102 are connected by an elastic shock absorption mechanism, a shock absorption mechanism is arranged at the gap between the main bucket tooth member 1 and the auxiliary bucket tooth member 102 so as to realize the impact resistance of the bucket teeth, and the bucket tooth protective shells 101 arranged at two sides of the main bucket tooth member 1 at the bottom slide down along the main bucket tooth member 1 after the bucket teeth contact materials so as to protect the main bucket tooth member 1 and reduce the friction generated at the position where the main bucket tooth member 1 contacts the materials.

In particular, referring to figure 3 of the drawings, referring to fig. 4 and 5, the elastic cushioning mechanism includes a limiting groove 206 disposed in the main bucket tooth member 1, a first sliding groove 205 is disposed in the main bucket tooth member 1, the limiting groove 206 is respectively communicated with the first sliding groove 205 and the accommodating space 103, a sliding barrel 207 is disposed in the first sliding groove 205, a side wall of the sliding barrel 207 is fixedly connected with a return spring 204, a side end of the return spring 204 is fixedly connected with a sliding rod 203, the sliding rod 203 is slidably connected in the return spring 204, a first sliding block 201 is slidably connected in the first sliding groove 205, the first sliding block 201 is slidably connected in the limiting groove 206, the first sliding block 201 is connected to a side end of the sliding rod 203, a bottom end of the first sliding block 201 is fixedly connected with a cushioning spring 202, a side end of the cushioning spring 202 is fixedly connected to a side wall of the first sliding groove 205, the cushioning spring 202 is sleeved on circumferential surfaces of the sliding rod 203 and the sliding barrel 207, and the first sliding block 201 is fixedly connected to a side end of the auxiliary bucket tooth member 102.

In this embodiment: the first sliding block 201 slides downwards, the sliding rod 203 slides in the sliding barrel 207 to press the return spring 204, the first sliding block 201 moves downwards and presses the buffering spring 202, and the buffering spring 202 and the return spring 204 generate resetting force when being pressed to help the main bucket tooth component 1 and the auxiliary bucket tooth component 102 to buffer.

Specifically referring to fig. 4, the limiting rod 2 is disposed in the limiting groove 206, and the first sliding block 201 is slidably connected to the circumferential surface of the limiting rod 2.

In this embodiment: the limiting rod 2 limits the vertical sliding position of the first sliding block 201, so that the first sliding block cannot deviate.

Specifically referring to fig. 6, the damping mechanism includes two first support rods 301 hinged to the top end of the damping plate 3, the bottom end of the auxiliary bucket tooth 102 is hinged to two second support rods 304 through a hinge shaft, the side ends of the two second support rods 304 are hinged to mounting blocks 302 through hinges, the two first support rods 301 are hinged to the two mounting blocks 302 through hinge shafts, and a strong spring 303 is fixedly connected between the end portions of the two strong springs 303 close to each other.

In this embodiment: through the change of the position between damper plate 3 and the vice tooth of fighting 102, utilize first bracing piece 301 and the cooperation of second bracing piece 304 to remove installation piece 302 to make two installation pieces 302 extrusion powerful spring 303, powerful spring 303's the nature of reseing can help main tooth of fighting 1 to carry out the bradyseism, damper is equipped with a plurality ofly, evenly distributed and damper plate 3 and the bottom of vice tooth of fighting 102.

Specifically referring to fig. 6 and 7, a side end of the auxiliary bucket tooth 102 is fixedly connected with a return spring 403, and a side end of the return spring 403 is fixedly connected to a side end of the fixing rod 402.

In this embodiment: the first movable rod 4, the second movable rod 401, the fixed rod 402 and the return spring 403 are all provided in a plurality of numbers, are distributed on two sides of the bottom of the auxiliary bucket tooth 102, and are limited by the position of the fixed rod 402, so that the second movable rod 401 is driven to perform circular motion around a hinge point, and the return spring 403 helps the second movable rod 401 to return.

Specifically, please refer to fig. 7 and 8, the transmission mechanism includes a placing block 503 fixedly connected to the main bucket tooth member 1, a first groove 504 is formed in the placing block 503, a partition 505 is fixedly connected to the inside of the placing block 503, a U-shaped block 404 is fixedly connected to a side end of the second movable rod 401, a first rolling shaft 501 is rotatably connected to a side end of the U-shaped block 404, the first rolling shaft 501 is inwardly movably inserted through the other side end of the U-shaped block 404, a rolling gear 405 is fixedly connected to a circumferential surface of the first rolling shaft 501, a rack 5 is fixedly connected to the inside of the placing block 503, the rack 5 is engaged with the rolling gear 405, first limiting chutes 502 are formed in the side end of the placing block 503 and the partition 505, and two sides of the first rolling shaft 501 are respectively slidably connected to the two first limiting chutes 502.

In this embodiment: the transmission mechanism is also provided with a plurality of groups, each group of transmission mechanism is respectively 2 and a plurality of first movable rods 4, the second movable rods 401, the fixed rod 402, the reset spring 403 and the U-shaped block 404 are matched, the U-shaped block 404 is fixed at the tail end of the second movable rod 401, one side of the second movable rod 401 moves along with the first movable rod 4 to move in a large-radius circular motion mode, the other side and the U-shaped block 404 are driven to move in a small-radius circular motion mode, when the rolling gear 405 moves in a circular motion mode, due to the fact that the rolling gear 405 is meshed with the rack 5, the rolling gear 405 can rotate, and meanwhile the first rolling shaft 501 is driven to rotate.

Specifically referring to fig. 11, 12 and 13, a disc 6 is fixedly connected to a side end of the first rolling shaft 501, a second fixed shaft 606 is fixedly connected to a side end of the disc 6, a third movable rod 601 is rotatably connected to a circumferential surface of the second fixed shaft 606, a fourth movable rod 602 is hinged to a side end of the third movable rod 601 through an oversized hinge, a rotating shaft 603 is rotatably connected to a side end of the placing block 503, the rotating shaft 603 is inwardly movably inserted into the placing block 503, a side end of the fourth movable rod 602 is connected to one side of the rotating shaft 603, and a fifth movable rod 604 is connected to the other side of the rotating shaft 603.

In this embodiment: first rolling shaft 501 rotates to drive disc 6 to rotate, a second fixed shaft 606 is fixedly connected to the side end of disc 6, the position of second fixed shaft 606 is close to the circumference of disc 6 and can follow the rotation of disc 6 to perform circular motion, the positions of second fixed shaft 606 and fourth movable rod 602 are limited by third movable rod 601, circular motion position of third movable rod 601 changes, the position of fourth movable rod 602 is driven to change, and fourth movable rod 602 follows second fixed shaft 606 to perform circular motion taking rotating shaft 603 as the center.

Specifically, referring to fig. 11, 12 and 13, the reciprocating circulating assembly includes a third stationary shaft 7 fixedly connected to a side end of the placing block 503, a connecting plate 701 is rotatably connected to a circumferential surface of the third stationary shaft 7, a movable groove 702 is formed in the connecting plate 701, a first stationary shaft 605 is fixedly connected to a side end of the fifth movable rod 604, and the first stationary shaft 605 is slidably connected to the movable groove 702.

In this embodiment: by driving the fifth movable rod 604 and the first fixed shaft 605 to perform circular motion, the first fixed shaft 605 slides in the movable groove 702 while performing circular motion, and meanwhile, the connecting plate 701 is driven to perform circular motion along with the first fixed shaft 605, and the position of the connecting plate 701 changes to drive the second rolling shaft 703 and the second slider 704 to move, so that the tooth protection shell 101 is driven to fall down to protect the main tooth part 1.

Specifically referring to fig. 13, a third groove 707 is formed in the main tooth member 1, the third groove 707 is communicated with the accommodating space 103, a second slider 704 is slidably connected in the third groove 707, a second groove 705 is formed in a side end of the second slider 704, one side of the second slider 704 is rotatably connected with a second rolling shaft 703, the second rolling shaft 703 is movably inserted through the other side of the second slider 704 inward, two second limiting sliding grooves 706 are formed in the main tooth member 1, the two second limiting sliding grooves 706 are both communicated with the third groove 707, two sides of the second rolling shaft 703 are respectively slidably connected in the two second limiting sliding grooves 706, the second rolling shaft 703 is slidably connected in the movable groove 702, and a side end of the second slider 704 is fixedly connected to a side end of the tooth protecting shell 101.

In this embodiment: second roll axis 703 slides in movable slot 702, the position of connecting plate 701 takes place to alternate and can drive the position of second roll axis 703 and change, second roll axis 703 takes place to slide and can drive second slider 704 and slide, thereby the position that drives bucket tooth protective housing 101 changes, the circulation of reciprocating subassembly is equipped with the multiunit, locate the both sides of main tooth spare 1 of fighting respectively, so that better drive bucket tooth protective housing 101 moves, drive mechanism and drive mechanism all are equipped with the multiunit with the part that the circulation of reciprocating subassembly was connected and was used, match with multiunit circulation of reciprocating subassembly respectively.

The embodiment also provides a production process of the impact-wear-resistant excavator bucket tooth, which comprises the following steps:

s1: preheating a blank: smelting the raw materials by an electric arc furnace or a medium frequency induction furnace to obtain molten steel, and carrying out LF refining on the molten steel, wherein the tapping temperature is 1550 +/-20 ℃;

s2: forging and stamping: the forging and pressing machine is used for applying pressure to the steel material of the bucket teeth, the pressure is formed in a high-temperature extrusion mode, crystal materials in the forge piece are thinned, and the crystal materials generate plastic deformation to obtain certain mechanical performance, the organization structure of metal can be improved after the metal is forged, and the bucket teeth can be guaranteed to have good mechanical performance, wear resistance and longer service life;

s3: preparing a mould: smearing a lubricant inside the female die and outside the male die, and heating to 70-80 ℃;

s4: and (3) cooling: taking out the forming bucket tooth part, placing the forming bucket tooth part in an air cooling chamber, and carrying out ventilation cooling at the wind speed of 0.2-0.5 m/s;

s5: assembling: and (3) carrying out part assembly on the cooled and molded bucket tooth part, and assembling the bucket tooth part into a complete impact-resistant wear bucket tooth through the matching of all components.

When the device is used: when the main bucket tooth part 1 of the bucket tooth is contacted with materials, the main bucket tooth part 1 moves backwards to provide an impact force for the damping plate 3, the damping plate 3 moves towards the position close to the auxiliary bucket tooth part 102 to drive the positions of the first supporting rod 301 and the second supporting rod 304 to change, so that the two side mounting blocks 302 are driven to extrude the strong spring 303, the strong spring 303 rebounds to provide a resetting force for the damping plate 3 under the pressure to help the damping plate 3 and the main bucket tooth part 1 reset to realize cushioning, the impact of the materials on the main bucket tooth part 1 is relieved, the first movable rod 4 hinged to the damping plate 3 moves upwards in the process of moving upwards, the first movable rod 4 is hinged to the second movable rod 401, the second movable rod 401 is hinged to the fixed rod 402, the hinged position of the second movable rod 401 and the fixed rod 402 is fixed, the position of the first movable rod 4 moves circularly around the hinged position, the first movable rod 4 moves upward to push the second movable rod 401 to rotate inward, one side of the second movable rod 401 makes circular motion, the other side also makes circular motion, the other side is fixedly connected with a U-shaped block 404, the U-shaped block 404 drives a rolling gear 405 to make circular motion, the rolling gear 405 rotates while revolving due to the meshing with a rack 5, so as to drive the first rolling shaft 501 to rotate when sliding, thereby driving the disc 6 to rotate, the disc 6 rotates to drive the second fixed shaft 606 to make operation motion, thereby driving the third movable rod 601 to make circular motion, the positions of the side ends of the second fixed shaft 606 and the fourth movable rod 602 are limited by the third movable rod 601, the second fixed shaft 606 follows the change of the position of the disc 6 to drive the position of the fourth movable rod 602 to change, rotates by taking the rotating shaft 603 as the center, and makes circular motion by driving the fifth movable rod 604 and the first fixed shaft 605, first fixed axle 605 takes place circular motion and slides in activity groove 702 simultaneously, and drive connecting plate 701 follows first fixed axle 605 and carries out circular motion simultaneously, and connecting plate 701 takes place the position change and can drive second roll axis 703 and second slider 704 and move to drive bucket tooth protective housing 101 and fall protection main bucket tooth spare 1, reduce the wearing and tearing between main bucket tooth spare 1 and the material.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.