Plug-in type excavator bucket tooth structure

Abstract

The utility model provides a plug-in type excavator bucket tooth structure which comprises a clamping plate tooth holder and a bucket tooth body arranged on the outer side of the clamping plate tooth holder in a sleeved mode, an adapter is movably arranged in the clamping plate tooth holder in a sleeved mode, and a first threaded rod and a second threaded rod are arranged on the end faces of the two sides of the adapter respectively. The outer side of the first threaded rod and the outer side of the second threaded rod are each sleeved with a fixed screw cap movably connected into the clamping plate tooth base and the bucket tooth body in a sleeved mode. According to the plug-in type excavator bucket tooth structure, the fixed screw cap can be ejected out from the inner side of the clamping plate tooth holder while the fixed screw cap is rotated through the wrench, and then the bucket tooth body is limited and fixed through cooperation of the fixed screw cap and the annular boss; and the fixed screw cap can retract towards the inner side of the clamping plate tooth holder while the fixed screw cap is reversely rotated through the wrench, so that limiting of the bucket tooth body can be relieved on the premise that the fixed screw cap does not need to be moved out of the inner side of the clamping plate tooth holder, and the bucket tooth body can be conveniently disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator bucket teeth, and specifically discloses a plug-in excavator bucket tooth structure. Background Art

[0002] Chinese Patent Application No. CN202323413825.X discloses a plug-in excavator bucket tooth; including a bucket tooth main body and a splint tooth seat, an insertion slot is opened inside the bucket tooth main body for cooperating with the splint tooth seat, fixing slots are opened inside both the bucket tooth main body and the splint tooth seat, and a protective outer seat is fixed on the outer surface of the bucket tooth main body outside the fixing slot. Through the plug-in limiting method of the utility model, after the bucket tooth main body is sleeved on the splint tooth seat, a fixing bolt is inserted into the fixing slot, and through a fixing screw cap, the fixing screw rod and the fixing bolt are fixed. With the cooperation of the protective outer seat to protect the fixing screw cap, the firmness of the connection between the bucket tooth main body and the splint tooth seat can be ensured, and there is no need for violent knocking, solving the problems of laboriousness, danger and easy damage to the bucket teeth when disassembling and assembling the existing plug-in excavator bucket teeth, greatly improving the convenience of disassembling and assembling the bucket teeth, and avoiding damage to the bucket teeth during disassembly and assembly.

[0003] For the above bucket tooth main body, the fixing bolt needs to be completely removed from the inside of the splint tooth seat to release the limit on it, making the disassembly and assembly of the bucket tooth main body relatively troublesome. And sometimes the excavator bucket will operate in water. Since the fixing screw cap is connected by threads and its threaded section is arranged outside the splint tooth seat, it is prone to rust. Once rust appears at the thread, it is not convenient to disassemble the fixing screw cap. Summary of the Utility Model

[0004] In view of the above defects or deficiencies in the prior art, the present application aims to provide a plug-in excavator bucket tooth structure, including a splint tooth seat and a bucket tooth main body sleeved outside the splint tooth seat. A swivel joint is movably sleeved inside the splint tooth seat. First threaded rods and second threaded rods are respectively arranged on the end faces on both sides of the swivel joint. Fixing screw caps that are movably sleeved inside the splint tooth seat and the bucket tooth main body are threadedly sleeved on the outer sides of the first threaded rod and the second threaded rod. A limit bolt that is threadedly sleeved inside the splint tooth seat and located outside the first threaded rod is provided. An annular boss that is located outside the fixing screw cap is arranged on the inner side of the bucket tooth main body.

[0005] Preferably, a sealing ring that is movably sleeved inside the splint tooth seat is sleeved on the outer side of the fixing screw cap.

[0006] Preferably, a flat surface is arranged on the outer side of the swivel joint.

[0007] Preferably, a positioning post that is movably sleeved inside the swivel joint is arranged on the end face of the limit bolt. Advantageous Effects

[0008] 1. For the plug-in excavator bucket tooth structure, when a wrench is used to rotate the fixed screw cap, the fixed screw cap can be pushed out from the inner side of the clamping plate tooth seat. Then, through the cooperation of the fixed screw cap and the annular boss, the bucket tooth body is limited and fixed. When the wrench rotates the fixed screw cap in the reverse direction, the fixed screw cap can retract towards the inner side of the clamping plate tooth seat. Thus, the limitation of the bucket tooth body can be released without removing the fixed screw cap from the inner side of the clamping plate tooth seat, facilitating the disassembly and assembly of the bucket tooth body.

[0009] 2. For the plug-in excavator bucket tooth structure, through the cooperation of the adapter and the first threaded rod, the fixed screw cap can be movably sleeved inside the clamping plate tooth seat in a threaded connection manner. Moreover, the threaded section of this structure is arranged inside the clamping plate tooth seat, which is not prone to rust. At the same time, the bucket tooth body will not collide with the threaded section during the installation process, facilitating the tightening and loosening of the fixed screw cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Other features, objects, and advantages of the present application will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings:

[0011] Figure 1 It is a partial half-sectional view of the structure of the present utility model;

[0012] Figure 2 It is a schematic diagram of the structure of the present utility model;

[0013] Figure 3 It is a partial cross-sectional view of the structure of the present utility model;

[0014] Figure 4 For Figure 3 an enlarged schematic view of the structure at A in

[0015] Figure 5 It is a schematic diagram of the fixed screw cap of the present utility model.

[0016] In the figure: 1. Clamping plate tooth seat; 2. Bucket tooth body; 3. Adapter; 4. First threaded rod; 5. Second threaded rod; 6. Fixed screw cap; 7. Limit bolt; 8. Annular boss; 9. Sealing ring; 10. Plane; 11. Positioning post. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following further elaborates the present application in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model and do not limit the utility model. Additionally, it should be noted that for the sake of description, only the parts related to the utility model are shown in the drawings.

[0018] The accompanying drawings in the embodiments of the present utility model: Different types of cross-hatching in the drawings are not marked according to the national standard, nor are the materials of the components required. It is to distinguish the cross-sectional views of the components in the drawings.

[0019] Please refer to Figures 1-5 , a plug-in excavator bucket tooth structure, which includes a splint tooth seat 1 and a bucket tooth body 2 sleeved outside the splint tooth seat 1. A swivel joint 3 is movably sleeved inside the splint tooth seat 1. First threaded rods 4 and second threaded rods 5 are respectively arranged on the end faces on both sides of the swivel joint 3. Fixed nuts 6 that are movably sleeved inside the splint tooth seat 1 and the bucket tooth body 2 are threadedly sleeved on the outside of the first threaded rod 4 and the second threaded rod 5. Through the cooperation of the first threaded rod 4 and the second threaded rod 5, the fixed nut 6 can be sleeved on the inner side of the splint tooth seat 1, and then the swivel joint 3 and the first threaded rod 4 can be shielded and protected by the splint tooth seat 1. Moreover, during the disassembly and assembly of the bucket tooth body 2, the first threaded rod 4 and the second threaded rod 5 will not come into contact with the bucket tooth body 2, and thus the threaded sections will not be damaged. A limit bolt 7 that is threadedly sleeved inside the splint tooth seat 1 is arranged outside the first threaded rod 4. An annular boss 8 that is arranged outside the fixed nut 6 is arranged inside the bucket tooth body 2. The fixed nut 6 can be limited and supported by the annular boss 8, so that the fixed nut 6 is not prone to self-rotation after being tightened.

[0020] Wherein, a sealing ring 9 that is movably sleeved inside the splint tooth seat 1 is sleeved outside the fixed nut 6. The gap between the splint tooth seat 1 and the fixed nut 6 can be sealed by the sealing ring 9 to prevent the outside from penetrating into the inside of the splint tooth seat 1, and thus the first threaded rod 4 and the second threaded rod 5 can be effectively protected, making the threaded sections of the first threaded rod 4, the second threaded rod 5 and the fixed nut 6 not prone to rust.

[0021] Wherein, a flat surface 10 is arranged outside the swivel joint 3. The contact area with the limit bolt 7 can be increased through the flat surface 10, so that the swivel joint 3 can be pressed and fixed after the limit bolt 7 is tightened.

[0022] Wherein, a positioning post 11 that is movably sleeved inside the swivel joint 3 is arranged on the end face of the limit bolt 7. While the swivel joint 3 can be limited and fixed by the limit bolt 7, the swivel joint 3 can be further positioned by the positioning post 11, making the fixed nuts 6 on both sides of the swivel joint 3 not prone to deviation. Moreover, during the process of loosening the fixed nut 6 by using a hex wrench, the fixed nut 6 can be screwed into the inner side of the splint tooth seat 1. Thus, under the premise of not needing to disassemble the fixed nut 6, the bucket tooth body 2 can be directly disassembled and assembled outside the splint tooth seat 1.

[0023] When assembling the bucket tooth structure, sleeved the adapter 3 on the inner side of the splint tooth seat 1, threadedly sleeved the limit bolt 7 inside the splint tooth seat 1, adjusted the position of the adapter 3. After the positioning post 11 was inserted into the adapter 3, tightened the limit bolt 7. Sleeved the sealing ring 9 on the outside of the fixed screw cap 6, and also sleeved the sealing ring 9 inside the splint tooth seat 1. Used a hexagon wrench to rotate the fixed screw cap 6, threadedly sleeved the first fixed screw cap 6 on the outside of the adapter 3. As the fixed screw cap 6 continued to rotate, pressed the sealing ring 9 into the inner side of the splint tooth seat 1. After the fixed screw cap 6 was fully screwed into the splint tooth seat 1, threadedly sleeved the second fixed screw cap 6 on the outside of the first threaded rod 4 using the above steps. After fixedly connecting the splint tooth seat 1 to the bucket, sleeved the bucket tooth body 2 on the outside of the splint tooth seat 1. Used a hexagon wrench to reverse-rotate the fixed screw cap 6 to screw it out from the inner side of the splint tooth seat 1, adjusted the position of the bucket tooth body 2 and screwed the fixed screw cap 6 into the bucket tooth body 2, and tightened the fixed screw cap 6 one by one to complete the assembly of the bucket tooth structure. The content not described in detail in this description belongs to the prior art well-known to those skilled in the art.

[0024] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine with the embodiments to detail this application.

[0025] The above description is only the preferred embodiment of this application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solution formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A plug-in excavator bucket tooth structure, comprising a clamping plate tooth seat (1) and a bucket tooth body (2) sleeved on the outside of the clamping plate tooth seat (1), characterized in that: The splint tooth seat (1) is internally movably sleeved with an adapter (3), and the end faces on both sides of the adapter (3) are respectively provided with a first threaded rod (4) and a second threaded rod (5), and the outer sides of the first threaded rod (4) and the second threaded rod (5) are both threadedly sleeved with a fixing screw cover (6) movably sleeved inside the splint tooth seat (1) and the bucket tooth body (2), and the internal thread of the splint tooth seat (1) is threadedly sleeved with a limiting bolt (7) located outside the first threaded rod (4), and the inner side of the bucket tooth body (2) is provided with an annular boss (8) located outside the fixing screw cover (6).

2. The plug-in excavator bucket tooth structure according to claim 1, characterized in that: The outer side of the fixed screw cover (6) is sleeved with a sealing ring (9) which is movably sleeved on the inner side of the clamping plate tooth seat (1).

3. The plug-in excavator bucket tooth structure according to claim 1, characterized in that: A plane (10) is provided on the outer side of the adapter (3).

4. The plug-in excavator bucket tooth structure according to claim 1, characterized in that: The end surface of the limiting bolt (7) is provided with a positioning column (11) which is movably sleeved inside the adapter (3).

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