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A hydraulic closed system motor characteristic test bench

A closed system and characteristic testing technology, which is applied in fluid pressure actuation system testing, servo motor, mechanical component testing, etc., can solve the problems of long development cycle and high cost, and achieve the effect of wide applicability

Active Publication Date: 2020-10-02
NANJING AGRI MECHANIZATION INST MIN OF AGRI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, how to measure the motor characteristics of the closed hydraulic system has always been a difficult problem. If the measurement is performed after the completion of the complete machine processing, it will face problems such as high cost and long development cycle.

Method used

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  • A hydraulic closed system motor characteristic test bench
  • A hydraulic closed system motor characteristic test bench

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] see figure 1 , A hydraulic closed system motor characteristic test bench mainly includes two parts: one is the hydraulic closed system circuit, and the other is the load loading circuit.

[0024]The hydraulic closed system circuit includes power components, control components, executive components, auxiliary components and measuring components. The power components include an electric motor a, a piston variable displacement pump 2 and an oil charge pump 3 . The power source of the system is the electric motor a, and the rated speed of the electric motor a is 1500-2000r / min, which can be matched according to the rated speed of the selected plunger variable pump 2. For the second, one shaft drives the plunger variable pump 2, and the other shaft drives the charge pump 3. There is no variable transmission ratio device between the transfer...

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Abstract

The invention relates to a hydraulic closed type system motor characteristic testing test bench. A hydraulic closed type system loop and a load loading loop; an electromotor a is connected with a transfer case, and power is divided into two; one shaft directly drives a plunger variable pump, and another shaft directly drives an oil supplementing pump; a plurality of two-position two-way reversing valves are each connected with a hydraulic driving motor in parallel; a first executing element comprises the hydraulic driving motors; a first auxiliary element comprises an oil tank and an oil supplementing filter; a first measuring element comprises a torque and rotating speed measuring instrument; a second power element comprises an electromotor b and a loading gear pump; a second control element comprises a three-position four-way proportional reversing valve and a plurality of proportional overflow valves; the proportional overflow valves are connected in parallel and are each connected with an oil outlet of a load motor, and the oil outlets are connected with the oil tank; and a second executing element comprises the plurality of load motors. According to the hydraulic closed type system motor characteristic testing test bench, the hydraulic closed type system motor characteristic is tested, and characteristic curves of a torque, a rotating speed and the like of a hydraulic closed type system motor under different loading manners are acquired.

Description

technical field [0001] The invention relates to a hydraulic test bench, in particular to a hydraulic closed system motor characteristic test bench. Background technique [0002] In recent years, the hydraulic closed system has developed rapidly by virtue of a series of advantages such as flexible layout, stepless speed regulation, high power density, and easy automation control. The market share of complete machine equipment equipped with closed hydraulic systems is also increasing. Increase. However, how to measure the motor characteristics of the closed hydraulic system has always been a difficult problem. If the measurement is performed after the completion of the complete machine processing, it will face problems such as high cost and long development cycle. Contents of the invention [0003] The object of the present invention is to address the above-mentioned deficiencies, and provides a hydraulic closed system motor characteristic test bench, which tests the hydrau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/17F15B19/00G01M13/00G01R31/34
CPCF15B11/17G01M13/00G01R31/34
Inventor 扈凯张文毅祁兵纪要李坤余山山
Owner NANJING AGRI MECHANIZATION INST MIN OF AGRI
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