Hydraulic system pipeline structure
A technology of hydraulic system and pressure pipeline, applied in the field of hydraulic system, can solve the problems of inconvenient installation and maintenance, high manufacturing cost, large space occupied by pipeline installation, etc., and achieve the effects of convenient installation, saving raw material cost and simple structure
Pending Publication Date: 2019-04-12
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD +1
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Problems solved by technology
The diameter and wall thickness of the hydraulic pipeline are related to the flow rate and pressure. The diameter and wall thickness of the main pipeline are increased by adopting the form of main pipe oil supply and then branching; in order to reduce the vibration of the pressure pipeline, it is necessary to set up energy storage in each branch circuit The pressure response from the front end to the end station of the branch pipeline is gradually delayed; the above results in a large space for pipeline installation, high manufacturing cost, and inconvenient installation and maintenance
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0019] see figure 1 , a hydraulic system pipeline structure, including an annular pipeline 1, the annular pipeline 1 includes a pressure pipeline 11, an oil return pipeline 12 and an oil drain pipeline 13, and the annular pipeline 1 is divided into a plurality of branches 14, the branch 14 is sequentially provided with a plurality of working valve groups 2 connected with the external test bench. The pressure pipeline 11, the oil return pipeline 12 and the oil drain pipeline 13 supply oil to the external test bench th...
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The invention discloses a hydraulic system pipeline structure. An annular pipeline comprises a pressure pipeline, an oil return pipeline and an oil discharging pipeline. The annular pipeline is divided into a plurality of branches, and a plurality of working valve groups communicating with externally-connected test beds are arranged on the branches in sequence. The pressure pipeline, the oil return pipeline and the oil discharging line are used for supplying oil to the externally-connected test beds through the working valve groups. The working valve groups comprise valve blocks, three oil holes correspondingly connected to the pressure pipeline, the oil return pipeline and the oil discharging pipeline are formed in the valve blocks, and high pressure ball valves, first low pressure ball valves and second low pressure ball valves are further arranged on the valve blocks. The high pressure ball valves are separately connected with the pressure pipeline and high pressure oil ports of theexternally-connected test beds, the first low pressure ball valves are separately connected with the oil return pipeline and oil return ports of the external test beds, and the second low pressure ball valves are separately connected with the oil discharging pipeline and the oil return ports and oil discharging ports of the externally-connected test beds. Through the mode, the hydraulic system pipeline structure can save the cost of raw materials, the structure is simple, installation is convenient, and safety and reliability are achieved.
Description
technical field [0001] The invention relates to the field of hydraulic systems, in particular to a hydraulic system pipeline structure. Background technique [0002] When rail vehicles conduct a series of tests, the hydraulic system needs to provide the power oil source to drive the servo actuator on the station, and at the same time, the return oil of the servo actuator and the leakage oil of the valve are sent back to the hydraulic system through the pipeline. The pipeline construction area involved in the present invention is about 90m x 30m in length and width, and has the characteristics of a maximum design pressure of 350bar, long pipeline and complicated pipeline. The pipeline is composed of a pressure pipeline, an oil return pipeline and an oil drain pipeline. The valve group of the oil extraction point is near the required hydraulic interface of the test bench. Through the transition of the valve group at the oil intake point, it is then collected to the oil return...
Claims
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Login to View More IPC IPC(8): F15B13/02F15B1/04
CPCF15B1/04F15B13/021
Inventor 张彦吉汪立平郑志威曹海建于海明张杰段俊俊金辰
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD