Hydraulic pressure station for efficiently cleaning oil cylinder and method for cleaning oil cylinder

Abstract

The invention provides a hydraulic pressure station for efficiently cleaning an oil cylinder. The hydraulic pressure station comprises a hydraulic pressure station assembly, the to-be-cleaned oil cylinder and two two-way reversible filter assemblies, wherein the hydraulic pressure station assembly comprises an oil tank, a gear pump, a hand-operated direction valve, an oil outlet pipe and an oil return pipe; the oil outlet pipe and the oil return pipe are communicated with an oil-tank oil outlet port and an oil-tank oil return port of the oil tank respectively; the gear pump is mounted on the oil outlet pipe; the hand-operated direction valve is provided with two valve ports P and T on the same side as well as two valve ports A and B respectively opposite to the two valve ports P and T; thevalve ports P and T of the hand-operated direction valve are communicated with the oil outlet pipe and the oil return pipe respectively; the two valve ports A and B serve as a hydraulic-pressure-station oil outlet port and a hydraulic-pressure-station oil return port of the hydraulic pressure station assembly; a cavity, without a rod, of the to-be-cleaned oil cylinder, is communicated with the valve port A of the hand-operated direction valve through a communicating oil pipe, and a cavity, with a rod, of the to-be-cleaned oil cylinder, is communicated with the valve port B of the hand-operated direction valve through a communicating oil pipe; and the two two-way reversible filter assemblies are mounted on the two communicating oil pipes between the to-be-cleaned oil cylinder and the hand-operated direction valve. The invention also provides a method for cleaning the oil cylinder.

Description

technical field [0001] The invention relates to the technical field of water conservancy tunnel construction, in particular to an efficient oil cylinder cleaning hydraulic station and a method for cleaning the oil cylinder. Background technique [0002] In construction machinery, the oil cylinder is the executor of the work and the manipulator of the construction machinery products. Construction machinery and equipment have high working intensity and high working pressure. Generally, the oil cylinder has a self-locking mechanism such as a balance valve, and the hydraulic oil in the oil cylinder must reach NAS9 grade or above. [0003] The existing traditional process uses the oil cylinder cleaning station to clean the oil cylinder. The oil tank of the oil cylinder cleaning station is equipped with clean hydraulic oil. The hydraulic oil becomes more and more dirty, and when it is used to clean the oil cylinder, the oil cylinder becomes more and more dirty. If the clean hydra...

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Problems solved by technology

[0003] The existing traditional process uses the oil cylinder cleaning station to clean the oil cylinder. The oil tank of the oil cylinder cleaning station is equipped with clean hydraulic oil. The hydraulic oil is becoming more and more dirty, and when it is used to clean the oil cylinder, the oil cylinder will become more and more dirty. If the clean hydraulic oil is replaced regularly, the cost will be high and the effect will not be obvious, resulting in the cleaned oil cylinder not meeting the specified cleanliness setting requirements

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