Excavator bucket tooth with disassembly and assembly structure

Abstract

The utility model relates to the technical field of bucket teeth, and discloses an excavator bucket tooth with a dismounting structure, which comprises a bucket tooth and a tooth holder, a cavity is arranged on the side wall of the bucket tooth, a storage cavity is arranged in the tooth holder, a fixing device is arranged in the storage cavity, and the fixing device comprises a bearing, a bidirectional threaded rod, a sleeve, an L-shaped limiting rod, a through groove, a rotating rod, a driving wheel and a driven wheel. When the bucket teeth do not move after making contact with the positioning block, a user can rotate a rotating rod in the forward direction, the rotating rod rotates to drive a driving wheel on the surface of the rotating rod to rotate, the driving wheel rotates to drive a driven wheel meshed with the driving wheel to rotate, and the driven wheel rotates to drive a two-way threaded rod in the driven wheel to rotate; and the two-way threaded rod rotates to drive the two sleeves on the surface of the two-way threaded rod to move towards the outer side oppositely, so that the L-shaped limiting rods on the side walls of the sleeves move to penetrate through the limiting grooves and the through grooves, the bucket teeth are limited, and a user can install and use the bucket teeth conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of bucket teeth, in particular to an excavator bucket tooth with a disassembly and assembly structure. Background Art

[0002] The bucket teeth of an excavator are important parts of the excavator. They are similar to human teeth and are also vulnerable parts. They are composed of a tooth seat and a tooth tip, which are connected by a pin. Since the tooth tip is the part that fails due to wear, you only need to replace the tooth tip.

[0003] The existing excavation bucket needs to be used for digging for a long time after installation. During digging, the main force-bearing component of the excavation bucket is the bucket teeth. Currently, the bucket teeth and the tooth seat are usually connected and fixed by inserting a pin inward, or by using screws and nuts.

[0004] However, inserting a pin inward is not a simple insertion but needs to be hammered in by tools such as a hammer, which makes it inconvenient to disassemble and assemble during subsequent replacement, affecting work efficiency. In addition, since there is usually a gap after the connection between the tooth seat and the bucket tooth is completed, dust and dirt will enter the bucket tooth through the connection between the tooth seat and the bucket tooth during the operation of the excavator, thereby affecting the quality of the combined structure. In view of this, we propose an excavator bucket tooth with a disassembly structure. Utility Model Content

[0005] The utility model aims to provide an excavator bucket tooth with a disassembly and assembly structure to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: an excavator bucket tooth with a disassembly structure, comprising a bucket tooth and a tooth seat, wherein a cavity is provided on the side wall of the bucket tooth, a receiving cavity is provided inside the tooth seat, a fixing device is provided inside the receiving cavity, and the fixing device comprises:

[0007] A bearing, wherein the bearing is fixedly mounted on the inner wall of the receiving cavity, a bidirectional threaded rod is rotatably connected inside the bearing, and sleeves are threadedly connected to the surfaces of both ends of the bidirectional threaded rod;

[0008] An L-shaped limiting rod, wherein the L-shaped limiting rod is fixedly mounted on the side wall of the sleeve, a limiting groove is provided on the inner wall of the cavity, and a through groove is provided on the inner wall of the receiving cavity;

[0009] A rotating rod, the rotating rod is rotatably connected to the inner wall of the storage cavity, a driving wheel is fixedly mounted on the surface of one end of the rotating rod, the other end of the rotating rod passes through the gear seat, and a driven wheel is fixedly mounted on the surface of the bidirectional threaded rod;

[0010] A shielding device is arranged inside the through slot.

[0011] Preferably, the shielding device includes a placement groove opened inside the tooth seat, a first airbag is fixedly installed on the inner wall of the placement groove, a sliding plate is slidably connected to the inner wall of the placement groove, a return spring is fixedly installed on one end of the sliding plate, and the other end of the return spring is fixedly connected to the inner wall of the placement groove, bayonet holes are opened on both sides of the inner wall of the storage cavity, a second airbag is fixedly installed on the inner wall of the bayonet hole, one end of the ventilation tube is fixedly installed on the side wall of the first airbag, and the other end of the ventilation tube passes through the second airbag.

[0012] Preferably, the through groove and the placement groove are in a communicating state.

[0013] Preferably, the return springs are provided in multiple groups, and the multiple groups of return springs are fixedly mounted on the side wall of the sliding plate.

[0014] Preferably, the L-shaped limiting rod passes through the limiting groove, the through groove and the placement groove.

[0015] Preferably, the second airbag is in contact with the surface of the bucket tooth, the interior of the second airbag is filled with half of the gas volume, and the interior of the first airbag is in a state of sufficient gas.

[0016] Compared with the prior art, the utility model provides an excavator bucket tooth with a disassembly structure, which has the following beneficial effects:

[0017] 1. The bucket tooth of the excavator with a disassembly and assembly structure is conveniently connected to the bucket tooth and the tooth seat by setting a fixing device, and the user drives the bidirectional threaded rod to rotate by rotating the rotating rod in the opposite direction, so that the two sets of sleeves on the surface of the bidirectional threaded rod move relatively, so that the L-shaped limit rod is disengaged from the through groove and the limit groove, thereby releasing the limit of the bucket tooth and facilitating subsequent replacement and use.

[0018] 2. The bucket tooth of the excavator with a disassembly and assembly structure is provided with a shielding device so that when the bucket tooth and the tooth seat are connected for use, the gap at the connection between the two can be sealed. The sliding plate is squeezed by moving the L-shaped limit rod, so that the sliding plate moves to squeeze the first airbag, so that the two groups of second airbags expand outward to shield the gap between the bucket tooth and the tooth seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the sectional side view of the three-dimensional structure of the utility model;

[0021] Figure 3 It is a partial cross-sectional three-dimensional structural schematic diagram of the gear seat of the utility model;

[0022] Figure 4This is an enlarged structural diagram of part A of the utility model;

[0023] Figure 5 This is an enlarged structural diagram of part B of the utility model;

[0024] Figure 6 It is a schematic diagram of the enlarged structure of part C of the utility model.

[0025] In the figure: 1. bucket tooth; 2. tooth seat; 3. fixing device; 31. bearing; 32. bidirectional threaded rod; 33. sleeve; 34. L-shaped limit rod; 35. through groove; 36. rotating rod; 37. driving wheel; 38. driven wheel; 4. shielding device; 41. placement groove; 42. first air bag; 43. sliding plate; 44. return spring; 45. second air bag; 46. ventilation pipe; 5. cavity; 6. storage cavity. DETAILED DESCRIPTION

[0026] like Figure 1-Figure 6 As shown, the utility model provides a technical solution: an excavator bucket tooth with a disassembly and assembly structure, comprising a bucket tooth 1 and a tooth seat 2, a cavity 5 is provided on the side wall of the bucket tooth 1, a storage cavity 6 is provided inside the tooth seat 2, a fixing device 3 is arranged inside the storage cavity 6, and the fixing device 3 comprises: a bearing 31, the bearing 31 is fixedly installed on the inner wall of the storage cavity 6, a two-way threaded rod 32 is rotatably connected inside the bearing 31, sleeves 33 are threadedly connected to the surfaces of both ends of the two-way threaded rod 32, an L-shaped limiting rod 34 is fixedly installed on the side wall of the sleeve 33, a limiting groove is provided on the inner wall of the cavity 5, a through groove 35 is provided on the inner wall of the storage cavity 6, a rotating rod 36 is rotatably connected to the inner wall of the storage cavity 6, a driving wheel 37 is fixedly installed on the surface of one end of the rotating rod 36, and the other end of the rotating rod 36 passes through the tooth seat 2, a driven wheel 38 is fixedly installed on the surface of the two-way threaded rod 32, and a shielding device 4 is arranged inside the through groove 35.

[0027] Specifically, the fixing device 3 of the technical solution of the utility model includes: a bearing 31, a bidirectional threaded rod 32, a sleeve 33, an L-shaped limit rod 34, a through groove 35, a rotating rod 36, a driving wheel 37, and a driven wheel 38.

[0028] In one embodiment of the present invention, the bearing 31 is fixedly mounted on the inner wall of the storage chamber 6, and a two-way threaded rod 32 is rotatably connected inside the bearing 31. Sleeves 33 are threadedly connected to the surfaces of both ends of the two-way threaded rod 32. An L-shaped limit rod 34 is fixedly mounted on the side wall of the sleeve 33. A limit groove is provided on the inner wall of the cavity 5, and a through groove 35 is provided on the inner wall of the storage chamber 6. A rotating rod 36 is rotatably connected to the inner wall of the storage chamber 6. A driving wheel 37 is fixedly mounted on the surface of one end of the rotating rod 36, and the other end of the rotating rod 36 passes through the tooth seat 2. A driven wheel 38 is fixedly mounted on the surface of the two-way threaded rod 32. By providing a fixing device 3, it is convenient to connect and use the bucket tooth 1 and the tooth seat 2. During installation, the user can connect the side of the bucket tooth 1 with the cavity 5 to the storage chamber 6. A positioning block is provided on the inner wall of the storage chamber 6. When the bucket tooth 1 contacts the positioning block, it will no longer move, and then the user can rotate the rotating rod forward. The rotation of the rod 36 drives the driving wheel 37 on its surface to rotate, and the rotation of the driving wheel 37 drives the driven wheel 38 meshing with it to rotate, and the rotation of the driven wheel 38 drives the bidirectional threaded rod 32 inside it to rotate, and the rotation of the bidirectional threaded rod 32 drives the two groups of sleeves 33 on its surface to move relatively outward, so that the L-shaped limit rod 34 on the side wall of the sleeve 33 moves to penetrate the limit groove and the through groove 35, so as to limit the bucket tooth 1, which is convenient for the user to install and use. Later, when the bucket tooth 1 is damaged, the user can drive the bidirectional threaded rod 32 to rotate by rotating the rotating rod 36 in the opposite direction, so that the two groups of sleeves 33 on the surface of the bidirectional threaded rod 32 move relatively inward, so that the L-shaped limit rod 34 is disengaged from the through groove 35 and the limit groove, thereby releasing the limit of the bucket tooth 1 for subsequent replacement and use. A shielding device 4 is provided inside the through groove 35.

[0029] Please continue reading Figure 1-Figure 6The shielding device 4 includes a placement groove 41 opened inside the gear seat 2, a first airbag 42 is fixedly installed on the inner wall of the placement groove 41, a sliding plate 43 is slidably connected to the inner wall of the placement groove 41, a return spring 44 is fixedly installed on one end of the sliding plate 43, and the other end of the return spring 44 is fixedly connected to the inner wall of the placement groove 41, and bayonet holes are opened on both sides of the inner wall of the storage cavity 6, and a second airbag 45 is fixedly installed on the inner wall of the bayonet hole, and one end of the ventilation pipe 46 is fixedly installed on the side wall of the first airbag 42, and the other end of the ventilation pipe 46 passes through the second airbag 45, and the through groove 35 and the placement groove 41 are in a connected state, and the sliding plate 43 is squeezed by the movement of the L-shaped limit rod 34, so that the sliding plate 43 is moved. The movable plate 43 moves to squeeze the first airbag 42. The first airbag 42 is squeezed so that the internal gas thereof enters the second airbag 45 through the vent pipe 46, so that the two groups of second airbags 45 expand outward to cover the gap between the bucket tooth 1 and the tooth seat 2, thereby improving the practicality of the bucket tooth 1 and the tooth seat 2 after being connected. Multiple groups of reset springs 44 are provided, and the multiple groups of reset springs 44 are fixedly mounted on the side wall of the sliding plate 43. The L-shaped limiting rod 34 passes through the limiting groove, the through groove 35 and the placement groove 41. The second airbag 45 contacts the surface of the bucket tooth 1. The second airbag 45 is filled with half of the gas, and the first airbag 42 is in a state of sufficient gas.

[0030] During operation, by connecting the bucket tooth 1 with the storage chamber 6, when the bucket tooth 1 contacts the positioning block and stops moving, the user can then rotate the rotating rod 36 in the forward direction, and the rotating rod 36 drives the driving wheel 37 on its surface to rotate, and the driving wheel 37 drives the driven wheel 38 meshing with it to rotate, and the driven wheel 38 drives the bidirectional threaded rod 32 inside it to rotate, and the bidirectional threaded rod 32 drives the two groups of sleeves 33 on its surface to move relatively outward, so that the L-shaped limit rod 34 on the side wall of the sleeve 33 moves to penetrate the limit groove and the through groove 35, and when the L-shaped limit rod 34 moves, it will slide The movable plate 43 is squeezed, so that the sliding plate 43 moves to squeeze the first air bag 42. The first air bag 42 is squeezed so that the internal gas thereof enters the second air bag 45 through the vent pipe 46, so that the two groups of second air bags 45 expand outward to cover the gap between the bucket tooth 1 and the tooth seat 2. Later, when the bucket tooth 1 is damaged, the user can work by rotating the rotating rod 36 in the reverse direction, so that the two groups of sleeves 33 on the surface of the two-way threaded rod 32 move inward relative to each other, so that the L-shaped limit rod 34 is disengaged from the through groove 35 and the limit groove, thereby releasing the limit of the bucket tooth 1 and facilitating subsequent replacement and use.

[0031] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An excavator bucket tooth with a disassembly structure, comprising a bucket tooth (1) and a tooth seat (2), wherein a cavity (5) is provided on the side wall of the bucket tooth (1), and a receiving cavity (6) is provided inside the tooth seat (2), characterized in that: A fixing device (3) is arranged inside the storage cavity (6), and the fixing device (3) comprises: A bearing (31), wherein the bearing (31) is fixedly mounted on the inner wall of the storage chamber (6), a bidirectional threaded rod (32) is rotatably connected inside the bearing (31), and sleeves (33) are threadedly connected to the surfaces of both ends of the bidirectional threaded rod (32); An L-shaped limiting rod (34), wherein the L-shaped limiting rod (34) is fixedly mounted on the side wall of the sleeve (33), a limiting groove is provided on the inner wall of the cavity (5), and a through groove (35) is provided on the inner wall of the receiving cavity (6); A rotating rod (36), the rotating rod (36) is rotatably connected to the inner wall of the storage chamber (6), a driving wheel (37) is fixedly mounted on the surface of one end of the rotating rod (36), the other end of the rotating rod (36) passes through the gear seat (2), and a driven wheel (38) is fixedly mounted on the surface of the bidirectional threaded rod (32); A shielding device (4), wherein the shielding device (4) is arranged inside the through groove (35).

2. The excavator bucket tooth with a disassembly structure according to claim 1, characterized in that: The shielding device (4) comprises a placement groove (41) provided inside the tooth seat (2), a first airbag (42) being fixedly mounted on the inner wall of the placement groove (41), a sliding plate (43) being slidably connected to the inner wall of the placement groove (41), a return spring (44) being fixedly mounted on one end of the sliding plate (43), the other end of the return spring (44) being fixedly connected to the inner wall of the placement groove (41), bayonet holes being provided on both sides of the inner wall of the storage cavity (6), a second airbag (45) being fixedly mounted on the inner wall of the bayonet hole, one end of a ventilation pipe (46) being fixedly mounted on the side wall of the first airbag (42), the other end of the ventilation pipe (46) passing through the second airbag (45).

3. The excavator bucket tooth with a disassembly structure according to claim 2, characterized in that: The through groove (35) and the placement groove (41) are in a communicating state.

4. The excavator bucket tooth with a disassembly structure according to claim 3, characterized in that: The return springs (44) are provided in multiple groups, and the multiple groups of return springs (44) are fixedly mounted on the side wall of the sliding plate (43).

5. The excavator bucket tooth with a disassembly structure according to claim 4, characterized in that: The L-shaped limiting rod (34) passes through the limiting groove, the through groove (35) and the placement groove (41).

6. The excavator bucket tooth with a disassembly structure according to claim 5, characterized in that: The second air bag (45) is in contact with the surface of the bucket tooth (1), the interior of the second air bag (45) is filled with half of the gas volume, and the interior of the first air bag (42) is in a state of sufficient gas.

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