Loading method of double-jacking-cylinder structure and hydraulic system of double-jacking-cylinder structure

A hydraulic system and jacking cylinder technology, which is applied in the direction of fluid pressure actuators, servo motors, mechanical equipment, etc., can solve the problem of not being able to provide the required load force and displacement for the actuator, and achieve flexible adjustment and short pressure building time , Realize the effect of step response of force

Active Publication Date: 2014-12-03
CENT SOUTH UNIV
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Problems solved by technology

However, the general force loading methods such as gravity loading and spring l

Method used

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  • Loading method of double-jacking-cylinder structure and hydraulic system of double-jacking-cylinder structure

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Embodiment Construction

[0031] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. .

[0032] see figure 1, the loading mode of the double-top cylinder structure and its hydraulic system, including the oil tank 1, the drive cylinder 10 and the load cylinder 15 are centered and installed on the fixed bracket 11, and the piston rod of the drive cylinder 10 and the piston rod of the load cylinder 15 are respectively connected with the tension force The two ends of the sensor 12 are fixedly connected to form a double-top cylinder structure, and also include a displacement sensor 14 for measuring the real-time displacement value of the piston rod of the double-top cylinder structure; include an electromagnetic reversing valve 8, and t...

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Abstract

The invention discloses a loading method of a double-jacking-cylinder structure and a hydraulic system of the double-jacking-cylinder structure. The loading method and the hydraulic system comprise an oil tank, oil pumps, one-way valves, high-pressure oil filters, pressure gauges, a pilot electromagnetic overflow valve, a proportional velocity regulating valve, an electromagnetic directional valve, pressure sensors, a driving oil cylinder, a fixed support, a tension-pressure sensor, a suspension sliding block connecting piece, a displacement sensor, a load oil cylinder, proportional pressure valves, a cooler, a return oil filter and a pipeline. The hydraulic system controls the magnitude of the loading force and the displacement respectively through the proportional pressure valves and the proportional velocity regulating valve, and the loading method has the characteristics of stepless adjustability, short pressure buildup time, capability of realizing positive and passive loading, bidirectional tension-pressure loading and step response of forces and the like. The loading method and the hydraulic system can be widely used for providing flexible loading forces for experimental research and simulating industrial field extrusion force processes, and a flexible and feasible solution is provided for experimental systems required to produce the loading forces.

Description

technical field [0001] The invention relates to a loading mode of a double-top cylinder structure and a hydraulic system thereof, in particular to a loading mode and a hydraulic system for providing flexible loading load force for a laboratory and simulating an extrusion force process on an industrial site. Background technique [0002] In experimental research, it is often necessary to provide a certain load for the actuator, which not only contains a force, but also produces a certain displacement; such as the extrusion process of an extrusion machine, the extruded material will not only affect the extrusion The movable beam of the machine has a resistance force, and it will also be subject to compression deformation. The resistance force has a tendency to increase nonlinearly with the increase of the compression deformation. Therefore, in the process of simulating loading, the load force (resistance force) is required to be Realize stepless adjustment and short response t...

Claims

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Application Information

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IPC IPC(8): F15B11/17
Inventor 谭建平周宇峰曾乐许洪韬
Owner CENT SOUTH UNIV
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