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Fully mechanized caving hydraulic support suitable for backward sliding prevention of inclined coal seam

A technology of hydraulic support and fully mechanized caving, which is applied to pillars/supports, mining equipment, earth-moving drilling, etc.

Pending Publication Date: 2022-05-20
HUAIBEI MINING IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to make up for the above deficiencies, this application provides a fully mechanized caving hydraulic support suitable for anti-slipping in inclined coal seams. Causes phenomena such as squeezed frame, slanted frame or even crooked frame and inverted frame; when the frame is moved, the top beam needs to be completely lowered and then moved, causing the roof within the support range to be repeatedly squeezed and damaged, prone to roof fall and roof leakage accidents

Method used

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  • Fully mechanized caving hydraulic support suitable for backward sliding prevention of inclined coal seam
  • Fully mechanized caving hydraulic support suitable for backward sliding prevention of inclined coal seam
  • Fully mechanized caving hydraulic support suitable for backward sliding prevention of inclined coal seam

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Embodiment Construction

[0037] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0038]In order to make the purpose, technical solutions and advantages of the embodiments of the application clearer, the technical solutions in the embodiments of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the application. Obviously, the described embodiments It is a part of embodiment of this application, and is not all embodiment. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

[0039] Accordingly, the following detailed description of the embodiments of the application, provided in the accompanying drawings, is not intended to limit the s...

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Abstract

The invention provides a fully-mechanized caving hydraulic support suitable for backward sliding prevention of an inclined coal seam. The fully-mechanized caving hydraulic support comprises a bottom plate. Two first hydraulic cylinders are installed on the upper portion of the bottom plate, a top plate is installed at the top ends of the two first hydraulic cylinders, a protective shell is further installed on the bottom plate, first connecting bases are installed on the two sides of the protective shell, first movable grooves are formed in the two sides of the bottom plate, and side protective plates are connected into the first movable grooves. First protection plates are installed at the two ends of the protection shell, and second protection plates are installed on the lower portions of the two ends of the top plate. According to the hydraulic support capable of preventing inclination and slipping, refitting operation is easy, moving of the hydraulic support is facilitated, slipping of the hydraulic support can be well controlled, the production efficiency of a coal face is improved, and the danger that the hydraulic support inclines and slips is reduced.

Description

technical field [0001] The application relates to the technical field of inclined coal seam protection, in particular to a fully mechanized caving hydraulic support suitable for anti-slipping of inclined coal seams. Background technique [0002] At present, the support used in coal mines generally adopts four-bar linkage mechanism, double-column or four-column cover type and support cover type hydraulic support. The weight of this type of hydraulic support is mostly about 15 to 30 tons. Difficult; when the inclination angle of the working face is above, the hydraulic support is prone to slide due to its own weight. If the operation is improper or the roof is broken, it may easily cause phenomena such as squeezed, swayed or even crooked, inverted; when moving the frame, the top beam needs to be fully lowered. The rearward movement causes the roof to be repeatedly squeezed and damaged within the support range, which is prone to roof fall and roof leakage accidents. [0003] I...

Claims

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Application Information

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IPC IPC(8): E21D15/44E21D15/51
CPCE21D15/44E21D15/50
Inventor 孙德强张刘华盛磊张浩然
Owner HUAIBEI MINING IND
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