Temporary supporting hydraulic support of tunneling working face

A technology for excavation work and hydraulic support, which is applied in coal mine machinery and equipment, and in the field of excavation work to support hydraulic supports when faced with excavation work. It can solve the problems of small support capacity, broken roof, and unsatisfactory roof support effect, etc., to improve the cantilever status, enhanced support strength, and the effect of enhanced protection

Active Publication Date: 2015-04-22
CHINA COAL PANJIANG HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many kinds of temporary support equipment and technical means for the roof, but either the supporting capacity is too small to meet the requirements for the strength of the roof support, or the roof needs to be repeatedly supported, causing the roof to break, or the support point of the roof Uncontrollable, resulting in unsatisfactory support for the roof

Method used

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  • Temporary supporting hydraulic support of tunneling working face
  • Temporary supporting hydraulic support of tunneling working face
  • Temporary supporting hydraulic support of tunneling working face

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 , figure 2 with image 3 As shown, the excavation work face of the first embodiment supports the hydraulic support in time, including the protective roof beam 4 and two longitudinal load-bearing structures respectively arranged on the left and right sides of the protective roof beam 4; wherein, each longitudinal load-bearing structure includes a vertical The load-bearing top beam 2, the base 1, the hydraulic support column 3 connecting the longitudinal load-bearing top beam 2 and the base 1, and the load-bearing top beam stabilizing mechanism are the two-bar linkage mechanism 51 and the four-bar linkage mechanism 52; the protective top beam 4 and the longitudinal load-bearing top beam The beam 2 connects and fixes the relative position between the two longitudinal bearing structures. Wherein, the telescopic top beam 82 driven by the telescopic top beam jack 81 is arranged on the longitudinal load-bearing top beam 2, and the telescopic top beam jack 8...

Embodiment 2

[0030] Such as Figure 4 with Figure 5As shown, the excavation work face temporary support hydraulic support of embodiment two is basically the same structure as the excavation work face temporary support hydraulic support support structure of embodiment one, the difference is that the telescopic top beam support device in embodiment two also includes variable Position control oil cylinder 83, wherein, one end of the displacement control oil cylinder 83 is hinged to the telescopic roof beam 82, the other end of the displacement control oil cylinder 83 is hinged to the support cylinder 84 or connected by a stay rope, and the support cylinder 84 is hinged to the telescopic roof beam 82 , the angle between the support cylinder 84 and the telescopic top beam 82 is adjusted by the expansion and contraction of the displacement control cylinder 83. When the support cylinder 84 is unloaded and separated from the bottom plate of the roadway under construction, the displacement control...

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Abstract

The invention discloses a temporary supporting hydraulic support of a tunneling working face. The temporary supporting hydraulic support of the tunneling working face comprises protective top beams and two longitudinal bearing structural bodies; each longitudinal bearing structural body comprises a longitudinal bearing top beam, a base and a support stand column; telescopic top beams are arranged on the longitudinal bearing top beams or the protective top beams, telescopic top beam support devices are arranged on the telescopic top beams, each telescopic top beam support device comprises a support oil cylinder and a displacement control oil cylinder, one end of each support oil cylinder and one end of each displacement control oil cylinder are each in hinged connection with each telescopic top beam, and the other end of each displacement control oil cylinder is connected with each support oil cylinder; protective top beams of the telescopic top beam are arranged on the telescopic top beams, supporting load cylinders are arranged on the protective top beams of the telescopic top beam and the protective top beams, and one end of each supporting load cylinder points to a roadway roof. The temporary supporting hydraulic support of the tunneling working face has the advantages of being strong in supporting and protective abilities for the roof, and capable of flexibly controlling the supporting points of the roof, creating a safe working environment for operating workers and improving the tunneling construction efficiency and footage level.

Description

technical field [0001] The invention relates to the technical field of coal mine excavation, in particular to a hydraulic support for temporary support during excavation work, which is mainly used in the excavation construction operation of coal lanes in coal mines, and belongs to coal mine mechanical equipment. Background technique [0002] It is extremely important for coal mines to maintain a normal mining relationship. However, coal mining technology has made great progress over the years, and the relative development of tunneling technology is very slow. There are many problems in roadway excavation construction with many people and low efficiency, which has caused tension in many coal mines. Therefore, it is necessary to study and improve the relevant issues of coal mine development and excavation technology, and accelerate the development and excavation speed. The fully mechanized excavation construction of coal mine roadway is a systematic project. To increase the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D23/04E21D23/16
CPCE21D23/0472E21D23/16
Inventor 曲天智
Owner CHINA COAL PANJIANG HEAVY IND CO LTD
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