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Method for preventing damaged seal of hydraulic oil cylinder from polluting hydraulic oil and filtering device

A technology of hydraulic oil filtration and hydraulic cylinder, applied in the direction of fluid pressure actuation device, fluid pressure actuation system components, mechanical equipment, etc., can solve the problems of seal damage and contamination of the hydraulic system, reduce oil pollution, avoid hydraulic pressure glitch effect

Inactive Publication Date: 2011-02-23
HENGYANG VALIN STEEL TUBE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

None of the above methods can solve the problem of polluting the entire hydraulic system due to hydraulic cylinder seal damage

Method used

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  • Method for preventing damaged seal of hydraulic oil cylinder from polluting hydraulic oil and filtering device
  • Method for preventing damaged seal of hydraulic oil cylinder from polluting hydraulic oil and filtering device
  • Method for preventing damaged seal of hydraulic oil cylinder from polluting hydraulic oil and filtering device

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Embodiment Construction

[0018] The invention discloses a method for removing hydraulic oil from hydraulic oil cylinder seal damage, which comprises installing a hydraulic oil filtering device on the oil port joints of chamber A and chamber B of the hydraulic oil cylinder respectively. During installation, the internal thread hole on the gland of a filtering device 8-1 is connected with the oil port joint 7-1 of the hydraulic cylinder 7A cavity, and the external thread on the filter cartridge is connected with the flexible pipe 6-1. The inner threaded hole on the gland of another filtering device 8-2 is connected with the oil port joint 7-2 of the hydraulic cylinder 7B cavity, and the external thread on the filter cartridge is connected with the flexible pipe 6-2. Through the hydraulic oil filter device, the damaged seal residue of the hydraulic cylinder is blocked at the cylinder port, so that it cannot enter the cylinder control valve, pressure and oil return pipe, and the hydraulic valve table and h...

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Abstract

The invention discloses a method for preventing a damaged seal of a hydraulic oil cylinder from polluting hydraulic oil. A hydraulic oil filtering device is arranged on oil port joints of cavity A and cavity B of the hydraulic oil cylinder respectively; residues of the damaged seal of the hydraulic oil cylinder are blocked at the port of the oil cylinder, so that the residues are prevented from entering an oil cylinder control valve, a pressure pipe and an oil return pipe and a hydraulic valve station and a hydraulic system are prevented from being polluted by the residues of the seal of the oil cylinder; the filtering device consists of a gland, an O-shaped sealing ring, a filter cartridge, a filter screen and a filter plate; the gland is provided with a first internal screw hole connected with the joint of the hydraulic oil cylinder, a first external thread connected with the filter cartridge and an oil cavity hole; the first internal screw hole is communicated with the oil cavity hole; the filter cartridge is provided with a stepped hole for the installation of the O-shaped sealing ring, a second internal screw hole which is in threaded connection with the gland, a stepped hole for the installation of the filter plate, and a second external thread and an oil hole which are connected with a hose; the second internal screw hole is communicated with the oil hole; the filter plate is provided with plural filter holes; and the filter screen is coated on the filter plate.

Description

technical field [0001] The invention belongs to the technical field of hydraulic pressure, and in particular relates to a method and a filter device for removing hydraulic oil pollution in a hydraulic system, in particular to a filter device installed on the oil ports of chamber A and chamber B of a hydraulic cylinder to remove pollution caused by damage to the seal of the hydraulic cylinder The hydraulic oil method and filtering device of the whole hydraulic system. Background technique [0002] The hydraulic cylinder is the main component of the hydraulic system. The action of the hydraulic cylinder is to drive the piston rod of the cylinder to extend and retract through high-pressure oil, thereby driving the connected mechanical device to reciprocate. The hydraulic cylinder is equipped with two oil ports. When one of the oil ports is connected to high-pressure oil, the piston rod of the drive cylinder is extended or retracted, and the other oil port returns oil at low pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/04
Inventor 严卫群黄定华王才诚曹锐张乾忠
Owner HENGYANG VALIN STEEL TUBE
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