Assembling mechanism of guide sleeve of column of hydraulic support

Abstract

The invention relates to an assembling mechanism of a guide sleeve of a column of a hydraulic support, which comprises a base and a rack arranged vertically on the based and connected with the base via a hinge structure. An obliquely arranged swinging arm oil cylinder is connected with the rack which can be inclined to one side of the swinging arm oil cylinder via the hinge structure under the driving of the swinging arm oil cylinder. The rack is further provided with a vertically lifting oil cylinder and a motor used for installation of the guide sleeve of the column and matched and connected with the lifting oil cylinder. The invention, by using the swinging arm structure and the vertically installed guide sleeve, can prevent the seal ring from being damaged due to dead load of the column. The motor has a floating structure, solves the problem that the motor and the column are not concentric. The invention, by using a structure of two springs, not only solves the problem of axial displacement compensation of the screw thread of the guide sleeve, but also avoids axial abrasion. Therefore, the invention not only controls the pre-pressure of the guide sleeve, but also protects the guide sleeve from being damaged effectively.

Description

technical field [0001] The invention relates to a mechanical assembly mechanism, in particular to an assembly mechanism for a guide sleeve of a hydraulic support column. Background technique [0002] The hydraulic support is the support equipment for the coal mine underground working face, its main function is to support the roof and maintain a safe working space. The column is the most important hydraulic component in the hydraulic support, which is used to bear the load of the roof and adjust the height of the support. It is mainly composed of parts such as cylinder block, column, guide sleeve and seal. The main failure mode is damage to the seal, and in order to replace the seal, the guide sleeve must be removed from the cylinder, the seal replaced, and then reinstalled. At present, in hydraulic supports at home and abroad, there are mainly two types of connection between the column guide sleeve and the cylinder body, the key type and the thread type, and the thread con...

AI Technical Summary

Problems solved by technology

[0009] The gantry structure cannot be accurately positioned during the walking process, and due to the large lateral force on the track during the assembly process, there is also the problem of compensation for the axial displacement of the guide sleeve thread

[0010] Horizontal structure, due to the influence of the column's own weight, the column becomes a cantilever beam, so the sealing ring of the column is easily crushed

Strain, scratches and other injuries caused by improper assembly of the column

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