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Hydraulic system with small oil-return resistance for hydraulic test table

A hydraulic test and hydraulic system technology, applied in the direction of fluid pressure actuating system components, fluid pressure actuating devices, servo motors, etc., can solve the problems of hydraulic system return oil pressure exceeding the standard, unable to meet inspection items, etc., and achieve oil return resistance. Reduced, easy to popularize, low cost of construction and renovation

Inactive Publication Date: 2015-03-18
XIAN ZHIYUE ELECTROMECHANICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the construction of the hydraulic test bench, considering the noise and other problems of the pump station, the pump station and the hydraulic operation platform are often placed separately. The oil pressure will often exceed the standard, resulting in failure to meet the requirements of the inspection items

Method used

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  • Hydraulic system with small oil-return resistance for hydraulic test table

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Embodiment Construction

[0018] like figure 1 A small oil return resistance hydraulic system for a hydraulic test bench is shown, including a main oil tank 1, a main hydraulic pump 2 for supplying high-pressure hydraulic oil to the system, an electromagnetic reversing valve 6, and a working oil cylinder 8 for driving working parts , also includes an auxiliary oil tank 10 and an auxiliary hydraulic pump 12 for reducing the oil return resistance; The rod cavity communicates, the third working port of the electromagnetic reversing valve 6 communicates with the auxiliary oil tank 10, the fourth working port of the electromagnetic reversing valve 6 communicates with the oil outlet of the main hydraulic pump 2, and the electromagnetic reversing valve 6 communicates with the oil outlet of the main hydraulic pump 2. Between the fourth working port of the reversing valve 6 and the oil outlet of the main hydraulic pump 2, a relief valve 5, a one-way valve 4 and an oil filter 3 are sequentially arranged. A pres...

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PUM

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Abstract

The invention discloses a hydraulic system with small oil-return resistance for hydraulic test table. The hydraulic system comprises a main oil tank, a main hydraulic pump, an electromagnetic reversing valve and a working oil cylinder and further comprises an auxiliary oil tank and an auxiliary hydraulic pump for decreasing oil-return resistance. A first working port and a second working port of the electromagnetic reversing valve are respectively communicated with a rodless cavity and a rod cavity of the working oil cylinder, a third working port of the electromagnetic reversing valve is communicated with the auxiliary oil tank, a fourth working port of the electromagnetic reversing valve is communicated with the oil outlet of the main hydraulic pump, an overflow valve, a one-way valve and a first oil filter are sequentially arranged between the fourth working port of the electromagnetic reversing valve and the oil outlet of the main hydraulic pump, the auxiliary oil tank is communicated with the auxiliary hydraulic pump. The hydraulic system with small oil-return resistance for hydraulic test table has the advantages of being small in oil-return resistance, reasonable in design, simple in structure, easy to implement, low in cost for establishing and transforming and easy to popularize and apply.

Description

technical field [0001] The invention belongs to the technical field of hydraulic transmission and relates to a hydraulic system, in particular to a small oil return resistance hydraulic system for a hydraulic test bench. Background technique [0002] Hydraulic transmission and control use liquid (oil, high water-based hydraulic oil, synthetic liquid) as the medium to realize the output of various mechanical quantities (force, displacement or speed, etc.). The hydraulic test bench is widely used in hydraulic flaw detection, pressure vessel hydraulic test and burst test, static pressure and burst test of various metal and non-metallic pipes, and detection of automobile brake systems. In the construction of the hydraulic test bench, considering the noise and other problems of the pump station, the pump station and the hydraulic operation platform are often placed separately. The oil pressure will often exceed the standard, resulting in failure to meet the requirements of the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/08F15B21/04
CPCF15B11/08F15B21/041
Inventor 黄冰
Owner XIAN ZHIYUE ELECTROMECHANICAL TECH