A self-locking bushing cutting pick seat structure

Abstract

The utility model discloses a kind of self-locking bushing cutting tooth seat structures, comprising: seat body, the self-locking bushing is inserted and installed in the seat body, the cutting tooth is inserted and installed in the self-locking bushing, the seat body inside is equipped with convex character cylindrical surface, the self-locking bushing is equipped with convex character taper surface, the cylindrical surface of the seat body and the taper surface of self-locking bushing contact, the utility model can be used in machinery, coal machinery, mining technical field, it is convenient to repair, use, maintenance cost has greater reduction.

Description

Technical Field

[0001] This utility model relates to the fields of machinery, coal mining machinery, and mining technology, specifically a self-locking bushing cutting tooth seat structure. Background Technology

[0002] As a key component of coal mining machines, the cutting tooth holder is welded onto the cutting drum of the coal mining machine, and there are many of them. During use, the inner hole of the cutting tooth holder wears a lot and needs to be replaced frequently. The traditional cutting tooth holder bushing has a cylindrical surface contact, which is very easy to rotate after being stressed, increasing the bushing wear rate, seriously affecting the production progress, and also posing certain operational risks. The replacement cost is also high.

[0003] Therefore, a self-locking bushing cutter seat structure was invented to address the shortcomings of existing technologies. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a self-locking bushing cutting tooth seat structure.

[0005] This utility model is achieved through the following technical solution:

[0006] A self-locking bushing cutting tooth holder structure includes: a seat body, a self-locking bushing inserted into the seat body, and cutting teeth inserted into the self-locking bushing.

[0007] Preferably, the seat body has a convex cylindrical surface inside, and the self-locking bushing has a convex conical surface inside, with the cylindrical surface of the seat body contacting the conical surface of the self-locking bushing.

[0008] Preferably, the inner diameter of the self-locking bushing is equal to the inner diameter of the cutting tooth.

[0009] The beneficial effects of this utility model are:

[0010] (1) By increasing the contact area and changing the direction of force, a self-locking effect is generated, saving manual maintenance time and greatly improving production efficiency;

[0011] (2) It reduces the difficulty of replacement, replacement cost and maintenance cost;

[0012] (3) The structure is simple and easy to maintain, which greatly reduces the cost of maintenance and testing and achieves the goal of safety. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of the self-locking bushing inserted into the seat of this utility model.

[0015] Figure 3 This is an exploded view of the self-locking bushing inserted into the nail body seat of this utility model.

[0016] In the diagram: 1-base; 2-self-locking bushing; 3-cutting tooth. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 This utility model provides a technical solution:

[0019] A self-locking bushing cutting tooth holder structure includes: a seat body 1, a self-locking bushing 2 inserted into the seat body 1 for self-locking, a cutting tooth 3 inserted into the self-locking bushing 2 and welded onto the cutting drum of a coal mining machine for use, and the cutting tooth is inserted into the inner hole of the self-locking bushing 2 in the seat body 1 for use.

[0020] The seat 1 has a convex cylindrical surface inside, and the self-locking bushing 2 has a convex conical surface inside. The cylindrical surface of the seat 1 is in contact with the conical surface of the self-locking bushing 2.

[0021] The self-locking bushing 2 has the same inner diameter as the cutting tooth 3.

[0022] Working principle: The structure of this utility model includes a base 1 and a self-locking bushing 2. The self-locking bushing 2 is inserted into the base 1 and is guided by the cylindrical surface contact. When the conical surface contact receives a force from left to right, it produces a self-locking effect by increasing the contact area and changing the direction of the force.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-locking bushing cutting tooth seat structure, characterized in that, include: The seat (1) is fitted with a self-locking bushing (2), and the self-locking bushing (2) is fitted with a cutting tooth (3). The seat (1) has a convex cylindrical surface inside, and the self-locking bushing (2) has a convex conical surface inside. The cylindrical surface of the seat (1) is in contact with the conical surface of the self-locking bushing (2).

2. The self-locking bushing cutting tooth seat structure according to claim 1, characterized in that: The inner diameter of the self-locking bushing (2) is equal to the inner diameter of the cutting tooth (3).

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