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Constant-pressure self-moving temporary supporting hydraulic support for tunneling

A temporary support and hydraulic support technology, applied in mine roof support, mining equipment, earthwork drilling and other directions, can solve the problems of inability to stabilize the roadway roof, the influence of the smooth movement of the roadheader, and the increase in equipment maintenance. The effect of avoiding the crushing of the roof and surrounding rock, enhancing the adaptability of the support, and having a simple structure

Pending Publication Date: 2020-12-25
HENAN POLYTECHNIC UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the roadway excavation process, the excavation process and the support process have a certain degree of mutual exclusion. When the anchor rod and the anchor cable are used for the support operation, the support time is difficult to perfectly match the actual excavation speed; the structure of the temporary support support group used Larger, it will not only affect the smooth mobilization of the roadheader, but also greatly increase the actual maintenance of the equipment; the temporary support strength is usually low, and when the temporary support moves forward, it cannot continuously stabilize the pressure on the roadway roof , there is a certain security risk

Method used

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  • Constant-pressure self-moving temporary supporting hydraulic support for tunneling
  • Constant-pressure self-moving temporary supporting hydraulic support for tunneling
  • Constant-pressure self-moving temporary supporting hydraulic support for tunneling

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Embodiment Construction

[0029] The invention provides a technical solution: a constant pressure self-moving temporary support hydraulic support for excavation, which consists of supporting inner beams 1, supporting outer beams 2, outer roof beams 3, inner roof beams 4, beam components 5, and hinged structures a6, hydraulic column 7, support bottom beam 8, push jack 9, hinged structure b 10 composition;

[0030] Two sets of support structures are set up for the temporary support hydraulic support, and the outer top beam 3 and the two supporting outer beams 2 are welded into a group of integral support structures through the beam assembly 5, and the inner top beam 4 and the two support inner beams are welded through the cross beam assembly 5. The beam 1 is welded into a group of integral support structures; the crossbeam assembly 5 is arranged below the two ends of the outer roof beam 3 and the inner roof beam 4, and is welded with the supporting outer beam 1 and the supporting inner beam 2 as a whole; ...

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Abstract

The invention relates to a constant-pressure self-moving temporary supporting hydraulic support for tunneling. The constant-pressure self-moving temporary supporting hydraulic support is composed of supporting inner beams, supporting outer beams, outer top beams, inner top beams, cross beam assemblies, hinge structures a, hydraulic stand columns, a support bottom beam, pushing jacks and hinge structures b; and according to the constant-pressure self-moving temporary supporting hydraulic support for tunneling, two supporting structures are arranged in a nested mode and connected with the hydraulic stand columns through the hinge structures, and the pushing jacks are connected with the top beams through the hinge structures. In the cutting process of a roadheader, the temporary support can automatically move and lift under constant pressure, so that interference of tunneling and supporting is avoided, the problems of support inclination, support pressing, bottom drilling and the like areavoided, simultaneous operation of cutting and permanent supporting of the roadheader is achieved, the structure is simple, and safety and reliability are high.

Description

technical field [0001] The invention relates to the technical field of roadway support, in particular to a constant-pressure self-moving temporary support hydraulic support for excavation. [0002] technical background [0003] Roadway excavation construction is subdivided into excavation part and support part. At present, the temporary support equipment used in coal mine excavation can be roughly divided into shed-type temporary support, excavation airborne forward-type temporary support and bolt-digging unit temporary support device, while the permanent support mainly includes bolt support and anchor support. cable support. During the roadway excavation process, the excavation process and the support process have a certain degree of mutual exclusion. When the anchor rod and the anchor cable are used for the support operation, the support time is difficult to perfectly match the actual excavation speed; the structure of the temporary support support group used Larger, it w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D23/04E21D23/06E21D23/18
CPCE21D23/04E21D23/06E21D23/18
Inventor 李东印郑立军张华峰张长合郑爽李国言杨永利付玉军孔二喜夏流云孙伟胡广林张文辉刘文超张铮
Owner HENAN POLYTECHNIC UNIV
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