Pipeline bridge type filtering system

A filter system and pipeline bridge technology, which is applied to fluid pressure actuation system components, fluid pressure actuation devices, mechanical equipment, etc., can solve problems such as damage, pump or motor blockage, component damage, etc., to improve safety and reduce The effect of the failure rate

Inactive Publication Date: 2009-11-18
无锡市钻通工程机械有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the trenchless drilling rigs in the prior art are driven by hydraulic pressure. In a closed system, the A and B ports of the pump output oil and are directly connected to the A and B ports of the motor. Since the hydraulic oil will have dust during the working process If dirt enters, one component in the pump or motor may be blocked or damaged, which may easily cause damage to another component. For this reason, it is necessary to install a high-pressure oil filter in the entire pipeline, but the closed system The direction of oil outlet and oil return from ports A and B of the middle pump is variable, and the dirt filtered by the ordinary oil filter will return to the pump or motor when it flows in the reverse direction, and the filtering effect will not be achieved.

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0010] Such as figure 1 As shown, the pipeline bridge filter system is provided with a first oil port 1 and a second oil port 6, including an oil filter 3 and a certain number of check valves. The first oil port 1 and the second oil port 6 are respectively connected with a three-way pipe, one branch of each three-way pipe is connected to the oil filter inlet 4 through the forward first check valve 2 and the second one-way valve 5, and the other branch of each three-way pipe The branch is connected to the outlet 8 of the oil filter through the reverse fourth one-way valve 9 and the third one-way valve 7 .

[0011] Such as figure 2 As shown, when the present invention is specifically applied in a closed system in which the motor 10 and the pump 15 are connected, the motor A port 11 and the pump A port 14 are connected through a filter system, and the motor B p...

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PUM

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Abstract

The invention relates to a pipeline bridge type filtering system, which is provided with a first oil port and a second oil port, comprises an oil filter and certain number of one-way valves, and is characterized in that the first oil port and the second oil port are connected with a tee pipe respectively, one branch of each tee pipe is connected with an inlet of the oil filter through a positive one-way valve, and the other branch of each tee pipe is connected with an outlet of the oil filter through a reverse one-way valve. The pipeline bridge type filtering system is applied to a closed system, and can ensure the one-way flow of the oil filter when a motor rotates positively and reversely, effectively filter dirt in hydraulic oil so that the filtered dirt cannot return to a pump or the motor when the dirt flows back in a reverse direction, reduce the fault rate, and improve the safety of the whole system.

Description

technical field [0001] The invention relates to a filter device for hydraulic oil in a closed system, in particular to a pipeline bridge filter system. Background technique [0002] Most of the trenchless drilling rigs in the prior art are driven by hydraulic pressure. In a closed system, the A and B ports of the pump output oil and are directly connected to the A and B ports of the motor. Since the hydraulic oil will have dust during the working process If dirt enters, one component in the pump or motor may be blocked or damaged, which may easily cause damage to another component. For this reason, it is necessary to install a high-pressure oil filter in the entire pipeline, but the closed system The direction of oil outlet and oil return from ports A and B of the middle pump is variable, and the dirt filtered by the ordinary oil filter will return to the pump or motor when it flows in the reverse direction, and the filtering effect will not be achieved. Contents of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/04
Inventor 齐长缨
Owner 无锡市钻通工程机械有限公司
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