Assembling mechanism of guide sleeve of column of hydraulic support

A technology of hydraulic support column and assembly mechanism, which is applied in the direction of support/support, mining equipment, earthwork drilling and mining, etc. It can solve the problems of column strain, column sealing ring is easy to be crushed, scratched, etc., so as to achieve convenient operation and avoid Axial wear, practical effect
CN102031979BActive Publication Date: 2012-09-05CHINA SHENHUA ENERGY CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA SHENHUA ENERGY CO LTD
Publication Date
2012-09-05

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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.
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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...

Claims

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