Anti-loosening structure for nut of breaking hammer
The anti-loosening block structure that does not require welding solves the problem of easy cracking of the breaker hammer nut ring, achieves efficient positioning and anti-loosening of the nut, and extends the service life of the breaker hammer.
Patent Information
- Application Number
- CN202423244381.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The nut ring of the existing breaker hammer is prone to cracking during welding, which causes cracking in the weak area of the shell, shortening the service life, and the nut has a poor anti-loosening effect.
The anti-loosening block structure that does not require welding is adopted. It is connected to the screw through slots and anti-rotation protrusions to achieve efficient positioning and anti-loosening of the nut and avoid the formation of welds.
It effectively prevents cracking at the connection between the nut and the housing, prolongs service life, and achieves efficient positioning and anti-loosening effects of the nut.
Smart Images
Figure CN223434603U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of breaking hammers and relates to a nut anti-loosening structure of a breaking hammer. Background Art
[0002] Currently, multiple bolt structures (the bolt structures include screws and nuts) are provided on the breaker hammer housing, and nut rings are welded on the housing to limit the bolt structures and prevent them from loosening.
[0003] However, in actual work, it was found that due to the vibration generated when the breaker hammer was working, the nut ring formed on the shell by welding was prone to weld cracking.
[0004] In addition, high temperature is generated during welding of the nut ring, causing the shell base material to be affected by the high temperature and its performance to change, thereby causing the weak areas between the nut and the cross pin hole and the nut and the maintenance port (the cross pin hole is opened on the shell near the corresponding nut, and the maintenance port is also opened on the shell near the corresponding nut) to crack, greatly reducing the service life of the breaker shell. Summary of the Invention
[0005] The purpose of the utility model is to address the above-mentioned problems existing in the prior art and to provide a new breaker hammer nut anti-loosening structure which can prevent the nut from loosening without welding, without causing performance changes in the shell base material and without causing cracking between the cross pin hole and the maintenance port.
[0006] The purpose of the utility model can be achieved through the following technical solutions: a breaker hammer nut anti-loosening structure, the breaker hammer includes a shell and a bolt structure arranged on the shell, and is characterized in that an anti-loosening block is installed on the shell, the anti-loosening block is provided with a plurality of slots, a plurality of screws are inserted into the corresponding slots and connected to the shell, the anti-loosening block has a plurality of anti-rotation protrusions, the two side edges of the anti-rotation protrusions are planar structures, and the outer wall of the nut is positioned and fits with the planar structure.
[0007] In the above-mentioned anti-loosening structure of the breaker hammer nut, the other end of the screw passes through the housing and is connected to the locking nut.
[0008] Compared with the existing technology, the anti-loosening structure of the breaker hammer nut replaces the existing method of preventing the nut from loosening by welding the nut ring, and has the advantages of preventing cracks and splitting, high positioning of the nut and increased service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a three-dimensional diagram of the anti-loosening structure of the nut of this breaker hammer.
[0010] Figure 2 It is a three-dimensional diagram of the anti-loosening block.
[0011] Figure 3 is a perspective view of the anti-loosening structure of the breaking hammer nut.
[0012] In the figure, 1 is a shell, 2 is an anti-loosening block, 3 is a slot hole, 4 is a screw rod, 5 is an anti-rotation protrusion, 6 is a planar structure, 7 is a nut, 8 is a locking nut, 9 is a cross pin hole, and 10 is a maintenance opening. DETAILED DESCRIPTION
[0013] The following is a specific embodiment of the present application and further describes the technical solution of the present application in combination with the accompanying drawings, but the present application is not limited to these embodiments.
[0014] As shown in Figure 1 , Figure 2 , Figure 3 , the anti-loosening structure of the breaking hammer nut, the breaking hammer includes a shell 1 and a bolt structure arranged on the shell 1, the shell 1 is provided with an anti-loosening block 2, a plurality of slot holes 3 are formed in the anti-loosening block 2, a plurality of screw rods 4 are inserted into the corresponding slot holes 3 and connected with the shell 1, the anti-loosening block 2 has a plurality of anti-rotation protrusions 5, the two sides of the anti-rotation protrusions 5 are planar structures 6, the outer wall of the nut 7 is positioned and attached to the planar structures 6, and the anti-loosening block 2 is provided with a corresponding number of slot holes 3 according to the number of inserted nuts 7.
[0015] Preferably, the other end of the screw rod 4 penetrates the shell 1 and is connected with the locking nut 8.
[0016] The anti-loosening block 2 does not need to be welded to the shell 1, so that no welds are generated, so that the base material of the shell 1 will not change in performance, and then the cracking phenomenon will not occur between the nut 7 and the cross pin hole 9 and between the nut 7 and the maintenance opening 10, greatly improving the service life of the breaking hammer, and achieving the purpose of efficient positioning and anti-loosening of the nut 7.
[0017] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.
[0018] Although the terms shell 1, anti-loosening block 2, slot hole 3, screw rod 4, anti-rotation protrusion 5, planar structure 6, nut 7, locking nut 8, cross pin hole 9, and maintenance opening 10 are used frequently in this paper, but the possibility of using other terms is not excluded. The use of these terms is only to facilitate the description and explanation of the essence of the present application; any kind of additional limitation is contrary to the spirit of the present application.
Claims
1. A nut anti-loosening structure for a breaker hammer, the breaker hammer comprising a housing (1) and a bolt structure arranged on the housing (1), characterized in that: The shell (1) is provided with an anti-loosening block (2), a plurality of slots (3) are provided on the anti-loosening block (2), a plurality of screws (4) are inserted into the corresponding slots (3) and connected to the shell (1), the anti-loosening block (2) has a plurality of anti-rotation protrusions (5), both sides of the anti-rotation protrusions (5) are plane structures (6), and the outer wall of the nut (7) is positioned and fitted with the plane structure (6).
2. A breaker hammer nut anti-loosening structure according to claim 1, characterized in that: The other end of the screw (4) passes through the housing (1) and is connected to the locking nut (8).