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Hydraulic cylinder testing system and method

A test system and hydraulic cylinder technology, applied in fluid pressure actuation system testing, fluid pressure actuation devices, mechanical equipment, etc., can solve problems such as oil temperature rise, energy waste, etc., to prevent temperature rise, reduce energy consumption, No throttling element energy consumption effect

Active Publication Date: 2016-09-21
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Especially in the durability test, the kinetic energy of the tested hydraulic cylinder is converted into the thermal energy of the oil by the loaded relief valve, causing the oil temperature to rise rapidly and causing energy waste

Method used

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  • Hydraulic cylinder testing system and method
  • Hydraulic cylinder testing system and method
  • Hydraulic cylinder testing system and method

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0036]The purpose of the present invention is to provide a hydraulic cylinder test system and test method to solve the problems of the above-mentioned prior art, to keep the temperature of the oil constant or to change little during the test of the hydraulic cylinder, and to reduce the pressure of the hydraulic cylinder test. The energy consumption of the system.

[0037] In order to make the above objects, features and advantages of the present invention more...

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Abstract

The invention discloses a hydraulic cylinder testing system and method. The hydraulic cylinder testing system comprises an oil supply system, a loading system and a measurement and control system. The oil supply system comprises a starting control unit, a drive motor, a proportional variable pump, a three-position four-way reversing valve and a hydraulic cylinder. The loading system comprises a power module, an alternating current motor, a constant displacement motor and a loading hydraulic cylinder. The measurement and control system comprises a control cabinet and a force measuring sensor. A piston rod of the loading hydraulic cylinder and a piston rod of the hydraulic cylinder are connected through a connector in an opposite abutting manner. The speed of the double-acting single-level hydraulic cylinder or a multi-level hydraulic cylinder is adjusted through the proportional variable pump, and loading and pressure control over the hydraulic cylinders are achieved in the manner that the constant displacement motor drives the alternating current motor. In the testing process, the kinetic energy of the tested hydraulic cylinder drives the loading hydraulic energy and is converted into hydraulic energy, then the hydraulic energy is converted into electric energy through the constant displacement motor and the alternating current motor, accordingly, non-throttling loading and energy recycling are achieved, energy consumption of the system is reduced, and temperature rise of oil liquid is reduced.

Description

technical field [0001] The invention relates to the technical field of hydraulic detection systems, in particular to a hydraulic cylinder test system and a test method. Background technique [0002] Hydraulic cylinders (including double-acting single-stage hydraulic cylinders, single-acting multi-stage hydraulic cylinders) are components that convert hydraulic energy into mechanical energy, and are commonly used in hydraulic control systems. It has been widely used in mining machinery and equipment. Hydraulic cylinders usually work in places with heavy loads and harsh working environments, so the characteristics of hydraulic cylinders will directly affect the normal operation of the hydraulic system. [0003] When using the loading cylinder to load the tested hydraulic cylinder, the piston rod of the tested hydraulic cylinder drives the loading hydraulic cylinder to move, and the final energy is consumed by the loading relief valve of the loading hydraulic cylinder and conv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B19/00
CPCF15B19/00
Inventor 郑戍华王向周彭熙伟
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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