Rubber track iron tooth with limiting teeth convenient to replace

Abstract

A rubber track iron tooth with limiting teeth convenient to replace comprises a gap bridge, side wings, the limiting teeth and limiting feet, the gap bridge is provided with an assembling area for limiting the assembling positions of the limiting teeth, the assembling area is provided with assembling side faces and an assembling bottom face, the assembling side faces are provided with lateral positioning inserting grooves, and the assembling bottom face is provided with bottom positioning inserting grooves. The limiting teeth are provided with assembly matching side faces making contact with the assembly side faces and assembly matching bottom faces making contact with the assembly bottom faces, the assembly matching side faces are provided with lateral positioning insertion blocks combined with the lateral positioning insertion grooves, and the assembly matching bottom faces are provided with bottom positioning insertion blocks combined with the bottom positioning insertion grooves. And a locking unit is arranged at the inlet end of the bottom positioning slot, has a preset shape and can retract after being extruded. The beneficial effects of the utility model lie in that: can realize toolless, part-free assembly mode, be suitable for fast assembly and convenient assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of crawler iron teeth, in particular to a rubber crawler iron tooth for conveniently replacing limit teeth. Background Art

[0002] In a rubber crawler in the form of a circulating belt formed by a rubber elastomer, steel wires serving as a circumferential reinforcing skeleton are embedded, and iron teeth are embedded at regular intervals. The iron teeth are deeply buried and bonded inside the rubber crawler, acting as a support skeleton, and are metal components that directly mesh with the machine drive wheel to transmit power and support the weight of the machine.

[0003] The published patent No. CN219749986U discloses a rubber crawler iron tooth, which includes a mounting plate and two tooth blocks. A groove is formed at the center of the top of the mounting plate, and slots are formed on the inner surfaces of both side walls of the groove. The two tooth blocks are respectively inserted into the two slots. First protrusions are fixedly arranged on the mutually remote sides of the two tooth blocks, and clamping grooves are formed on the inner walls of the mutually remote sides of the two slots. The first protrusions are inserted into the clamping grooves. Two screws distributed front and back are threadedly connected to both sides of the top of the mounting plate. The first protrusions and the mounting plate are fixed by the screws. Limit blocks are fixedly arranged on the outer walls of the front, back, left, and right sides of the two tooth blocks, and limit grooves are formed on the inner surfaces of the front, back, left, and right sides of the two slots. The multiple limit blocks are respectively slidably arranged in the multiple limit grooves to improve the stability of the tooth blocks during installation. The tooth blocks of this rubber crawler iron tooth are detachable. In this way, when the tooth blocks are worn out by friction, the staff can replace them with new tooth blocks by loosening the screws, without having to replace the entire mounting plate and tooth blocks, which greatly reduces the use cost. However, there are defects, that is, it needs to be fixed by screws, resulting in a cumbersome process of replacing the tooth blocks and the need to carry auxiliary tools for implementation. Content of the Utility Model

[0004] The utility model aims to solve the above-mentioned disadvantages of the prior art and provides a rubber crawler iron tooth for conveniently replacing limit teeth to solve the above problems.

[0005] The technical solution adopted by the present utility model to solve its technical problems: This rubber crawler iron tooth that is convenient for replacing the limit teeth includes a cross bridge, side wings, limit teeth, and limit feet. Side wings are provided at both ends of the cross bridge. Limit teeth protruding above the top of the cross bridge are provided between the cross bridge and the side wings at both ends. Limit feet are provided at the front and rear ends of the cross bridge. An assembly area for defining the assembly position of the limit teeth is provided on the cross bridge. The assembly area has an assembly side surface and an assembly bottom surface. A lateral positioning slot is provided on the assembly side surface, and a bottom positioning slot is provided on the assembly bottom surface. The limit teeth have an assembly mating side surface in contact with the assembly side surface and an assembly mating bottom surface in contact with the assembly bottom surface. A lateral positioning plug combined with the lateral positioning slot is provided on the assembly mating side surface, and a bottom positioning plug combined with the bottom positioning slot is provided on the assembly mating bottom surface. A locking unit is provided at the entrance end of the bottom positioning slot. The locking unit has a preset shape and can retract under extrusion, and allows the locking unit squeezed by the bottom positioning plug to rebound to the preset shape and prevent the bottom positioning plug from detaching from the bottom positioning slot.

[0006] For further improvement, a guiding cavity for placing part of the locking unit is provided on the cross bridge of the bottom positioning slot, and the locking unit is completely placed in the guiding cavity when being squeezed by the bottom positioning plug.

[0007] For further improvement, the locking unit includes a blocking main body and an extension body extending from the blocking main body. Part of the blocking main body is placed in the guiding cavity. The extension body is placed in the guiding cavity and is provided with a spring having an elastic compression amount in the retraction direction of the locking unit. A plug rod connected to the lower end of the spring is provided at the bottom of the guiding cavity.

[0008] For further improvement, a transition chamfer is formed between the upper end surface and the right side surface of the blocking main body.

[0009] For further improvement, anti - detachment blocks are equidistantly distributed along the length direction of the bottom positioning slot in the bottom positioning slot, and anti - detachment grooves extending along the length direction of the bottom positioning plug and for placing the anti - detachment blocks are provided on the bottom positioning plug.

[0010] For further improvement, both the anti - detachment blocks and the anti - detachment grooves are in a T - shaped configuration

[0011] The beneficial effects of the present utility model are:

[0012] The limit teeth of the present utility model are detachably arranged. The disassembly enables the limit teeth to be independently replaced after being damaged, without the need to replace the entire iron tooth, reducing costs. Moreover, the disassembly or connection of the limit teeth can achieve a tool - free and part - free assembly mode, which is suitable for rapid and convenient assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a structural schematic diagram of the present utility model;

[0014] Figure 2 Explosion structure schematic diagram on the left side of the present utility model;

[0015] Figure 3 Explosion structure schematic diagram on the right side of the present utility model;

[0016] Figure 4 Full-section structure schematic diagram of the present utility model;

[0017] Figure 5 For the present utility model Figure 4 Partial enlarged schematic diagram of part A. Specific implementation manners

[0018] The present utility model will be further described below in conjunction with the accompanying drawings:

[0019] Referring to the attached drawings: This rubber crawler iron tooth with convenient replacement of limit teeth includes a cross-bridge 11, side wings 12, limit teeth 13 and limit feet 14. Side wings 12 are provided at both ends of the cross-bridge 11. Limit teeth 13 protruding above the top of the cross-bridge 11 are provided between the cross-bridge 11 and the two side wings 12. Limit feet 14 are provided at the front and rear ends of the cross-bridge 11. An assembly area 2 for defining the assembly position of the limit teeth 13 is provided on the cross-bridge 11. The assembly area 2 has an assembly side surface 21 and an assembly bottom surface 22. A lateral positioning slot 3 is provided on the assembly side surface 21, and a bottom positioning slot 4 is provided on the assembly bottom surface 22. The limit tooth 13 has an assembly mating side surface 13-a in contact with the assembly side surface 21 and an assembly mating bottom surface 13-b in contact with the assembly bottom surface 22. A lateral positioning plug 5 combined with the lateral positioning slot 3 is provided on the assembly mating side surface 13-a, and a bottom positioning plug 6 combined with the bottom positioning slot 4 is provided on the assembly mating bottom surface 13-b. A locking unit 7 is provided at the entrance end of the bottom positioning slot 4. The locking unit 7 has a preset shape and can retract under extrusion, and allows the locking unit 7 squeezed by the bottom positioning plug 6 to rebound to the preset shape and prevent the bottom positioning plug 6 from detaching from the bottom positioning slot 4. The locking unit 7 is placed at the entrance end of the bottom positioning slot 4.The principle of the present utility model lies in the combination of the lateral positioning slot 3 and the lateral positioning block 5, and the bottom positioning slot 4 and the bottom positioning block 6. The lateral positioning slot 3 and the bottom positioning slot 4 both have openings (as the entrance ends) on the same side of the cross-bridge 11, so that the lateral positioning block 5 and the bottom positioning block 6 can enter the corresponding positioning slots synchronously. Moreover, the positioning slot has only one opening on the cross-bridge 11, so that the positioning block can only leave in the direction away from the assembly direction, and the final position of the limit tooth 13 on the cross-bridge 11 can also be quickly determined. At the same time, the lateral positioning slot 3 restricts the movement of the limit tooth 13 in the up and down directions, and the bottom positioning slot 4 restricts the movement of the limit tooth 13 in the left and right directions. And to ensure the assembly stability of the limit tooth 13, it is realized by the face-to-face method when the limit tooth 13 is placed in the assembly area 2, that is, the contact between the assembly side surface 21 and the assembly mating side surface 13-a, and the assembly bottom surface 22 and the assembly mating bottom surface 13-b. And these surfaces are all flat surfaces, which can eliminate the fitting clearance, so as to ensure the stability when the limit tooth 13 is assembled on the cross-bridge 11. The locking unit 7 is used to hold the limit tooth 13 in the assembly area 2, and it is on the moving track of the bottom positioning block 6, so that the bottom positioning block 6 can prevent the bottom positioning block 6 from moving in the direction away from the assembly direction after being completely placed in the bottom positioning slot 4. At the same time, the locking unit 7 has the characteristic of being retractable under extrusion, and there is no need for manual specific pressing. The bottom positioning block 6 can be used to press it, and continuous pressing can be provided to the locking unit 7 during the movement of the bottom positioning block 6, so that the locking unit 7 does not interfere with the movement of the bottom positioning block 6 in the bottom positioning slot 4. After the bottom positioning block 6 moves in place, the pressing on the locking unit 7 is released, so that the locking unit 7 returns to the preset shape and produces the effect of preventing the bottom positioning block 6 from moving in the direction away from the assembly direction. In this way, a tool-free and part-free assembly mode can be realized, which is suitable for rapid assembly and convenient assembly.

[0020] The bottom positioning slot 4 is provided with a guiding cavity 8 in the cross-bridge 11 for part of the locking unit 7 to be placed therein. The locking unit 7 is completely placed in the guiding cavity 8 when being extruded by the bottom positioning block 6. The guiding cavity 8 is used to provide a space for the locking unit 7 to be hidden when being pressed, that is, the locking unit 7 is completely placed in the guiding cavity 8 when being pressed.

[0021] The locking unit 7 includes a blocking body 71 and an extension body 72 extending from the blocking body 71. The blocking body 71 is partially placed in the guide cavity 8, and the extension body 72 is placed in the guide cavity 8 and is provided with a spring 9 having an elastic compression amount in the retraction direction of the locking unit 7. The bottom of the guide cavity 8 is provided with an insertion rod 81 connected to the lower end of the spring 9. The blocking body 71 is used to prevent the bottom positioning plug 6 from moving in a direction away from the assembly direction. A small part of the blocking body 71 is placed in the guide cavity 8 and a large part is exposed outside the guide cavity 8. In this way, the blocking body 71 can quickly enter the guide cavity 8 after being squeezed without interference. The extension body 72 is used to set the spring 9, which has a cylindrical configuration so that the spring 9 can be fitted therewith. The bottom of the guide cavity 8 is also provided with a cylindrical insertion rod 81, whose outer diameter is consistent with the extension body 72, and is also used to fit the spring 9. In this way, the elastic change of the spring 9 can be exerted, and the state change of the locking unit 7 can also be adapted.

[0022] A transition chamfer 71-a is formed between the upper end face and the right side face of the blocking body 71, that is, the transition chamfer 71-a is used to form an inclined surface on the blocking body 71, and the inclined surface makes the blocking body 71 present a non-continuous thickness, so that when the bottom positioning plug 6 enters along the assembly direction, the movement can produce a pressing effect on the blocking body 71, and there is no need for manual specific pressing.

[0023] The bottom positioning slot 4 is provided with anti-slip blocks 10 which are equidistantly distributed along the length direction of the bottom positioning slot 4, and the bottom positioning plug block 6 is provided with an anti-slip groove 20 which extends along the length direction of the bottom positioning plug block 6 and is provided with the anti-slip block 10. Both the anti-slip block 10 and the anti-slip groove 20 are in a T-shaped configuration. Such a configuration is used to further increase the restraining effect of restraining the movement of the limiting tooth 13 in the upper and lower directions. The T-shaped configuration enables the anti-slip block 10 or the anti-slip groove 20 to have a transverse part and a vertical part. The vertical part of the anti-slip block 10 is arranged on the bottom surface of the bottom positioning slot 4, and the vertical part of the anti-slip groove 20 is used for the vertical part of the anti-slip block 10 to pass through. The transverse part of the anti-slip block 10 has an anti-slip effect, that is, when it exists in the transverse part of the anti-slip groove 20, it prevents the limiting tooth 13 from moving upward, and the size of the transverse part of the anti-slip block 10 is adapted to the size of the transverse part of the anti-slip groove 20, and the cooperation can produce a tight force, thereby also increasing the setting stability of the limiting tooth 13.

[0024] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A rubber track iron tooth with convenient replacement of limiting teeth, comprising a bridge (11), side wings (12), limiting teeth (13) and limiting feet (14), wherein the two ends of the bridge (11) are provided with side wings (12), limiting teeth (13) protruding from the top of the bridge (11) are provided between the bridge (11) and the side wings (12) at both ends, and limiting feet (14) are provided at the front and rear ends of the bridge (11), characterized in that: The bridge (11) is provided with an assembly area (2) for limiting the assembly position of the limiting tooth (13); the assembly area (2) has an assembly side surface (21) and an assembly bottom surface (22); the assembly side surface (21) is provided with a lateral positioning slot (3); the assembly bottom surface (22) is provided with a bottom positioning slot (4); the limiting tooth (13) has an assembly matching side surface (13-a) in contact with the assembly side surface (21) and an assembly matching bottom surface (13-b) in contact with the assembly bottom surface (22); the assembly matching side surface ( 13-a) is provided with a lateral positioning block (5) combined with the lateral positioning slot (3), and the assembly matching bottom surface (13-b) is provided with a bottom positioning block (6) combined with the bottom positioning slot (4), and the bottom positioning slot (4) is provided with a locking unit (7) at its entrance end, and the locking unit (7) has a preset shape and can be retracted when squeezed, and allows the locking unit (7) squeezed by the bottom positioning block (6) to rebound to the preset shape and prevent the bottom positioning block (6) from escaping from the bottom positioning slot (4).

2. The rubber track iron teeth for convenient replacement of limit teeth according to claim 1, characterized in that: The bottom positioning slot (4) is provided with a guide cavity (8) on the bridge (11) for part of the locking unit (7) to be placed therein, and the locking unit (7) is completely placed in the guide cavity (8) when being squeezed by the bottom positioning plug block (6).

3. The rubber track iron teeth for convenient replacement of limit teeth according to claim 2, characterized in that: The locking unit (7) comprises a blocking body (71) and an extension body (72) extending from the blocking body (71); the blocking body (71) is partially disposed in the guide cavity (8); the extension body (72) is disposed in the guide cavity (8) and is provided with a spring (9) having an elastic compression amount in the retraction direction of the locking unit (7); and an insertion rod (81) connected to the lower end of the spring (9) is provided at the bottom of the guide cavity (8).

4. The rubber track iron teeth for convenient replacement of limit teeth according to claim 3, characterized in that: A transition chamfer (71-a) is formed between the upper end surface and the right side surface of the blocking body (71).

5. The rubber track iron teeth for convenient replacement of limit teeth according to claim 1, characterized in that: The bottom positioning slot (4) is provided with anti-slip blocks (10) which are equidistantly distributed along the length direction of the bottom positioning slot (4), and the bottom positioning plug block (6) is provided with an anti-slip groove (20) which extends along the length direction of the bottom positioning plug block (6) and is provided with the anti-slip block (10) therein.

6. The rubber track iron teeth for convenient replacement of limit teeth according to claim 5, characterized in that: The anti-slip block (10) and the anti-slip groove (20) are both in a T-shaped configuration.

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