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Dual-hydraulic-control dual-loop rapid liquid supply valve for columns

A dual-circuit, liquid supply technology, applied in mining equipment, earth-moving mining, mine roof support, etc., can solve the problems of complicated pipeline layout, large space occupation, and high cost, so as to simplify pipeline layout and save installation space. , the effect of cost reduction

Pending Publication Date: 2020-11-06
CHINA COAL BEIJING COAL MINING MACHINERY
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

However, when supplying liquid to the four-column hydraulic support, since the front and rear columns need to be controlled separately, in the prior art and products, the general practice is to install two independent rapid liquid supply valves, the pipeline layout is complicated, and many rubber hoses and pipeline parts are used. It takes up a lot of space, which is not conducive to space saving and maintenance, and the cost also increases accordingly

Method used

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  • Dual-hydraulic-control dual-loop rapid liquid supply valve for columns
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  • Dual-hydraulic-control dual-loop rapid liquid supply valve for columns

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Embodiment Construction

[0014] The embodiments of the present invention will be further described in detail below. The content not described in detail in the embodiments of the present invention belongs to the prior art known to those skilled in the art.

[0015] The preferred embodiment of the double-hydraulic-controlled double-circuit column rapid liquid supply valve of the present invention is:

[0016] It consists of a valve body with symmetrical structures on the left and right sides. The valve body on each side is equipped with a separate valve core, liquid supply interface and control port, forming a relatively independent liquid supply circuit when supplying or returning liquid to a specific column.

[0017] The liquid inlets on the left and right valve bodies communicate with each other, and the liquid return ports communicate with each other.

[0018] The liquid inlets on the left and right valve bodies are connected to one or two liquid inlet hoses; the liquid return ports on the left and...

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Abstract

The invention discloses a dual-hydraulic-control dual-loop rapid liquid supply valve for columns. The valve comprises valve bodies which are symmetric left and right, wherein the valve body at each side is provided with an independent valve element, liquid supply joint and control port to form a relatively independent liquid supply loop. Liquid inlets in the left valve body and right valve body communicate with each other, liquid return ports communicate with each other, and the valve bodies at the left side and the right side can separately or jointly supply liquid. A motive seal of each valve element adopts a steel seal fit structure. The two conventional rapid liquid supply valve bodies are integrated on one valve, thus the installation space is saved, the pipeline layout is simplified,the cost is greatly lowered, and the universality is better.

Description

technical field [0001] The invention relates to a hydraulic support accessory for coal mines, in particular to a double-hydraulic-controlled double-circuit fast liquid supply valve for a column. Background technique [0002] Coal machinery equipment is the basis for the sustainable development of the coal industry. The expansion of coal mine scale and the increase in output provide a good opportunity for the development of high-end coal machinery equipment manufacturing industry. [0003] As the working resistance of the fully mechanized mining face gradually increases and the uncertainty of the roof pressure becomes increasingly prominent, the hydraulic support with high-strength support is gradually expanding the scope of use, and the hydraulic control valve products used are also becoming more and more high-end. High support strength, large-bore columns, and fast-moving coal mining requirements require that the columns can quickly enter and return liquid to achieve fast a...

Claims

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Application Information

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IPC IPC(8): E21D23/16E21D23/26
CPCE21D23/16E21D23/26
Inventor 南北彤宋冲田海波聂薇
Owner CHINA COAL BEIJING COAL MINING MACHINERY
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