Anti-loosing device and coal mining machine

A coal shearer and anti-loosening technology, which is applied in the direction of mechanical equipment, earth drilling, cutting machinery, etc., can solve the problems of high installation accuracy, reduction in the number of screw connections, interference, etc., and achieve the improvement of assembly work efficiency and generalization High degree, good anti-loosening effect

Active Publication Date: 2014-03-26
SANY HEAVY EQUIP
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Although this method has a certain anti-loosening effect, it only reduces the number of threaded connections and does not get rid of the thread anti-loosening structure.
In addition, this kind of anti-loosening structure has high installation precision and requires high machining precision for the structure, which is not easy to realize, and the bolt protruding from the cover plate does not meet the coal safety requirements, which may cause interference

Method used

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  • Anti-loosing device and coal mining machine
  • Anti-loosing device and coal mining machine
  • Anti-loosing device and coal mining machine

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0047] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0048] The basic idea of ​​the present invention is: in view of the situation in the prior art that the shearer is dangerous due to the bolt loosening due to vibration, the present invention designs an anti-loosening device for the special and important part of the shearer cover plate. The loosen...

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Abstract

The invention discloses an anti-loosing device and a coal mining machine. The anti-loosing device is used for threaded connection pieces. The anti-loosing device comprises anti-loosing pads and anti-loosing seats; the anti-loosing pads are each provided with an anti-loosing pad center hole; the threaded connection pieces are each arranged in the anti-loosing pad center hole in a penetration mode and are each connected with a connected piece; the anti-loosing seats are each sleevedly arranged on the threaded connection piece and are each clamped tightly by the anti-loosing pad. Therefore, the anti-loosing device has the advantages of simple structure, convenient assembly and disassembly and high efficiency, and improves the assembly working efficiency.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to an anti-loosening device and a coal shearer. Background technique [0002] Due to the particularity of some working environments, construction machinery will often vibrate. For example, the shearer vibrates almost continuously during the working process, especially the vibration of the thin coal seam shearer is more serious. This severe vibration will lead to thread fastening The looseness of parts, especially the looseness of frequently disassembled parts such as cover plates is more serious. Therefore, in order to avoid the danger of shearer bolts loosening due to vibration, the more common solutions to the above situation are as follows: [0003] 1) Increase the thread pair and change the coarse thread to fine thread, but it can only alleviate the loosening of the thread, and cannot fundamentally solve the practical problem. And, due to the frequent disassembly of the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C35/00F16B39/26
Inventor 王文广姚立权程千里
Owner SANY HEAVY EQUIP
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