A hydraulic cylinder test system and test 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
CN105952713BActive Publication Date: 2017-09-29BEIJING INSTITUTE OF TECHNOLOGYGY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INSTITUTE OF TECHNOLOGYGY
Publication Date
2017-09-29

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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.
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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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