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Oil pressure control system

A technology of oil pressure control and oil pump, which is applied in the direction of fluid pressure actuators, servo motors, servo motor components, etc., and can solve the problems of inability to smoothly control the oil pressure actuator and low precision of oil supply

Inactive Publication Date: 2017-12-01
GOTECH TESTING MACHINES DONGGUAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide an oil pressure control system that can control the smooth operation of the oil pressure actuator to solve the problem that the traditional oil pressure control system cannot control the oil pressure actuator smoothly due to the low oil supply accuracy.

Method used

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Embodiment Construction

[0015] Such as figure 2 Shown, it is the oil pressure control system 20 of the present invention and figure 1 The connection diagram of the tape fatigue test apparatus 10 shown in .

[0016] The oil pressure control system 20 includes: a motor 210 , an oil pump 220 , an oil tank 230 , a check valve 240 , a throttle valve 250 , a three-position four-way solenoid valve 260 , a pressure regulating valve 270 and a servo flow valve 280 .

[0017] The motor 210 is drivingly connected with the oil pump 220 to drive the oil pump 220 to extract the hydraulic oil in the oil tank 230 . Specifically, the drive shaft of the motor 210 rotates at a preset speed, and drives the oil pump 220 to pump out the hydraulic oil in the oil tank 230 . The oil pump 220 communicates with the throttle valve 250 through the check valve 240 . In practical application, the oil pump 220 communicates with the check valve 240 via the oil delivery pipe, and the check valve 240 communicates with the throttle v...

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Abstract

The invention relates to an oil pressure control system which comprises a motor, an oil tank, an oil pump in drive connection with the motor so as to pump hydraulic oil from the oil tank, a throttling valve, a check valve, a pressure regulating valve, a three-position four-way electromagnetic valve and a servo flow valve, wherein the check valve, the pressure regulating valve, the three-position four-way electromagnetic valve and the servo flow valve are communicated with the oil pump and the throttling valve. The throttling valve is communicated with a first oil port of the three-position four-way electromagnetic valve and further sequentially communicated with the servo flow valve and a second oil port of the three-position four-way electromagnetic valve through the pressure regulating valve. The three-position four-way electromagnetic valve controls the first oil port and the second oil port of the three-position four-way electromagnetic valve to be communicated with a third oil port and a fourth oil port of the three-position four-way electromagnetic valve in a switched manner. The oil feed amount of the servo flow valve and the oil feed amount of the second oil port are regulated through the servo flow valve. Through switching communication of the oil ports in the three-position four-way electromagnetic valve, the oil pressure of two oil inflow and outflow ports of an oil hydraulic cylinder is controlled at the same time; and due to the fact that the amount of the hydraulic oil flowing out of the second oil port is regulated through the servo flow valve, a piston in the oil hydraulic cylinder is moved smoothly, increased or decreased tension is smoothly applied to an adhesive tape sample, and therefore the test requirement is met.

Description

technical field [0001] The invention relates to the technical field of oil pressure control, in particular to an oil pressure control system for controlling the action of an oil pressure actuator. Background technique [0002] The fatigue testing device for the tape includes an oil pressure actuator that repeatedly stretches the tape, for example, the oil pressure actuator is an oil pressure cylinder. see figure 1 , which is a structural diagram of the tape fatigue testing device 10 controlled by the oil pressure control system. [0003] The tape fatigue testing device 10 includes: a bracket 110 , a load cell 120 , an upper fixture 130 , a lower fixture 140 , a hydraulic cylinder 150 and a reference panel 160 . The load cell 120 is fixed on the bracket 110 and connected with the upper clamp 130 , the hydraulic cylinder 150 is fixed on the bracket 110 , and its telescopic axis is connected with the lower clamp 140 . The hydraulic cylinder 150 is provided with a first oil i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/06F15B11/08
CPCF15B11/08F15B13/06
Inventor 魏国征谢锋卜浩然仵涛
Owner GOTECH TESTING MACHINES DONGGUAN
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