Impact head strengthening and centralizing method by using dual back recesses and impact head strengthening and centralizing device by using dual back recesses for applying the method

Abstract

The present invention relates to the field of machinery and provides an impact head strengthening and centralizing method by using dual back recesses and an impact head strengthening and centralizing device by using dual back recesses for applying the method, and the method and the device are particularly applicable to the fields of mining or engineering machinery. The device comprises a dual back recess guidance mechanism, an impact support mechanism, a drive mechanism and impact heads, etc. The dual back recess guidance mechanism comprises a rolling friction dual back recess structure and impact guidance elements, etc. The rolling friction dual back recess structure comprises an upper rolling friction grove and a lower rolling friction groove. A power impact element drives the impact guidance elements to reciprocate. The impact guidance elements are disposed within the space of an external guidance roller. The impact guidance elements increase the centralizing height of the impact heads, and are in rolling friction with the reciprocating movement direction of the dual back recess structure and centralizing tooth holders of the impact guidance elements.

Description

technical field [0001] The invention belongs to the field of machinery, and is particularly applicable to a method for reinforcing a righting impact head with a back groove and a device for implementing the method using a back groove to strengthen a righting impact head, which are suitable for the field of mining or engineering machinery. Background technique [0002] Coal shearers, roadheaders, and excavators are collectively referred to as mining machines. Reciprocating impact mining machines and reciprocating impact excavators are used in the upper and lower parts of the impact guide to quickly and efficiently mine rocks or coal seams or cement concrete or hardened mudstone. Both are equipped with guide rolling bodies, because the upper and lower rolling bodies need to occupy a large space, so the size of the impact guide supporting the righting impact head is relatively reduced, resulting in insufficient strength to support the righting impact head, so that the impact pow...

AI Technical Summary

Problems solved by technology

For example, the reciprocating impact shearer must have a certain amount of undercover excavation in order to match the flexible scraper conveyor used for reloading, and it must also have sufficient top cutting in order to facilitate the smooth advancement of the hydraulic support. Therefore, the impact head must be set There is a certain height, that is, the impact head must be made larger and heavier, but when the larger and heavier impact head hits the material, it will contact the material with a large area at one time, so that the reaction force is concentrated and strong, and the impact reaction force is transmitted to the guide mechanism, The driving mechanism and the rear of the fuselage are easy to damage the guiding mechanism and the driving mechanism, prematurely damage the impact power box, etc., and easily cause the impact reaction force to resonate with the fuselage to deform the fuselage. In order to solve the above-mentioned many problems, the present invention proposes a method of strengthening the righting impact head with the opposite back groove and a device for strengthening the righting impact head with the opposite back groove for implementing the method. The device makes a single impact The height and / or width of the head is greatly reduced, realizing the purpose of a single impact head mining lower materials and combining multiple smaller impact heads to use the same power source, saving energy and reducing consumption and improving efficiency

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