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Method for testing starting pressure of servo hydraulic cylinder

A technology of servo hydraulic cylinder and starting pressure, which is applied in the field of servo hydraulic cylinder, can solve the problems such as the inability to select the overflow valve to adjust the pressure, and achieve the effect of simple test, wide versatility and low cost

Pending Publication Date: 2021-11-02
WUXI FOREVER AUTOMATION TECH CO LTD
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Problems solved by technology

Because the starting pressure is too small, when testing the starting pressure of the servo cylinder, it is impossible to select a suitable relief valve for pressure regulation

Method used

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  • Method for testing starting pressure of servo hydraulic cylinder

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Embodiment Construction

[0015] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. 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.

[0016] Combine below figure 1 As shown, the embodiment of the present invention provides a method for testing the starting pressure of a servo hydraulic cylinder, including a pump 1, a servo motor 2, a one-way valve 3, a pressure sensor 4, a magnetostrictive displacement sensor 5, a servo cylinder 6, and an electromagnetic ball valve 7 and a damping hole 8, the s...

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Abstract

The invention discloses a method for testing starting pressure of a servo hydraulic cylinder, and belongs to the technical field of servo hydraulic cylinders. The method involves a pump, a servo motor, a one-way valve, a pressure sensor, a magnetostriction displacement sensor, a servo cylinder, an electromagnetic ball valve and a damping hole, the servo motor is located on the pump, the one-way valve is connected with the oil outlet end of the pump, an oil inlet of the servo valve is connected with the oil outlet end of the pump, a bypass is arranged at the oil outlet end of the pump, the pressure sensor, the electromagnetic ball valve and the damping hole pump are all arranged on the bypass at the oil outlet end of the pump, the electromagnetic ball valve communicates with the servo valve pressure sensor, and the damping hole is connected with the electromagnetic ball valve. According to the method, a simple and effective method capable of obtaining continuous adjustable system pressure is adopted, so that the starting pressure of the servo cylinder is accurately measured; and the method has the characteristics of wide universality, low cost and simple test.

Description

technical field [0001] The invention relates to the technical field of servo hydraulic cylinders, in particular to a method for testing the starting pressure of a servo hydraulic cylinder. Background technique [0002] At present, when testing the starting pressure of hydraulic cylinders, most of them use relief valves to adjust the pressure. By gradually increasing the setting pressure of the relief valve, the internal pressure of the oil cylinder is gradually increased. When the moment when the piston rod of the oil cylinder is detected, the pressure at this time is the starting pressure of the hydraulic cylinder. The starting pressure of ordinary hydraulic cylinders is generally about 0.5Mpa, and a relief valve can be used to adjust the pressure. The servo cylinder is generally a low-friction cylinder, and the starting pressure is generally lower than 0.05Mpa. Because the starting pressure is too small, when testing the starting pressure of the servo cylinder, it is imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B19/00
CPCF15B19/00
Inventor 谢海涛
Owner WUXI FOREVER AUTOMATION TECH CO LTD
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