Main liquid inlet manual control valve provided with rapidly-replaced filter element

A manual control and filter replacement technology, which is applied to mining equipment, earthwork drilling, pillars/supports, etc., can solve problems such as unfavorable operations, and achieve the effects of convenient maintenance and replacement, compact structure, and easy operation

Inactive Publication Date: 2018-05-11
ZHEJIANG ZHONGMEI HYDRAULIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This kind of handwheel globe valve is often installed under the cover beam or tail beam at

Method used

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  • Main liquid inlet manual control valve provided with rapidly-replaced filter element
  • Main liquid inlet manual control valve provided with rapidly-replaced filter element
  • Main liquid inlet manual control valve provided with rapidly-replaced filter element

Examples

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Example Embodiment

[0010] The present invention will be described below in conjunction with the embodiments and the drawings.

[0011] See figure 1 , figure 2 , image 3 , A manual control valve for main inlet with quick-change filter element, which includes valve body 1, operating mechanism assembly 25, quick-change filter element assembly Figure II , Cartridge spool assembly image 3 . The valve body 1 has two joint holes, one is connected to the main inlet pipeline, and the other is connected to the main return pipeline. A filter cavity is opened at the same time coaxially with the main inlet connector hole, which is used to install the threaded quick-change filter element to communicate with the main cavity of the valve element assembly. Two through holes with the same diameter are opened on the plane of the valve body to communicate with the main cavity, one of which directly communicates with the main return interface. Spool assembly image 3 There are O-ring 6, 8, retaining ring 7, 9 spr...

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Abstract

A main liquid inlet manual control valve provided with a rapidly-replaced filter element is mainly used for on-off control of a coal mine comprehensive mining hydraulic support hydraulic system and amain pipeline, a soft sealing mode is adopted, the reliability of sealing can be ensured, on-off control is operated by adopting a handle, and the force moment is small. A filter element assembly is spiral, a screw opening faces outwards, and replacing and cleaning are easy, the whole filter element assembly is inserted into a valve body main cavity, the structure is compact, and down-hole replacing and repairing are convenient. Because the main liquid inlet manual control valve is assembled with a reversing valve in a series connection mode, the main liquid inlet manual control valve is mounted on the front portion of a support, and operation is more convenient.

Description

technical field [0001] The invention relates to a control valve, in particular to a main liquid inlet manual control valve with a quick-change filter element for a hydraulic support. Background technique [0002] At present, each support of the fully mechanized mining face in domestic coal mines is equipped with a liquid inlet stop valve. When the hydraulic system of a certain support breaks down and needs to be overhauled, it can disconnect the hydraulic system of the support from the main pipeline without affecting the normal work of other supports. It plays an important role in coal mining. But there are also some problems in actual use. For example, the hand wheel of some cut-off valves cannot be rotated, some have a large operating force, and some cannot stop at all. This kind of handwheel globe valve is often installed under the cover beam or tail beam at the rear of the bracket, which is not conducive to operation and is often covered by coal ash. This globe valve ...

Claims

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Application Information

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IPC IPC(8): E21D15/51
CPCE21D15/512
Inventor 吴汉武
Owner ZHEJIANG ZHONGMEI HYDRAULIC MACHINERY
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