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Testing system of hydraulic motor

A test system and hydraulic motor technology, which is applied in fluid pressure actuation system testing, fluid pressure actuation devices, mechanical equipment, etc., can solve the problem of high price, low precision of system pressure adjustment, and inability to meet the needs of construction machinery hydraulic motor tests, etc. problems, to achieve the effect of increasing stability and improving recovery efficiency

Inactive Publication Date: 2013-02-20
SANY AUTOMOBILE MFG CO LTD
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Problems solved by technology

The electric power recovery method needs to add electrical components such as rectification or inverter systems, which is complex in technology, expensive, and the recovery efficiency is not high; the mechanical compensation power recovery method has a small speed adjustment range and limits the displacement relationship between the test motor and the loading pump. The system has disadvantages such as low pressure adjustment accuracy; the hydraulic compensation power recovery method has shortcomings such as unstable test speed and incomplete test functions, which cannot meet the test needs of construction machinery hydraulic motors

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  • Testing system of hydraulic motor

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Embodiment Construction

[0024] It should be pointed out that the description and sequence of specific structures in this section are only descriptions of specific embodiments, and should not be considered as limiting the protection scope of the present invention. In addition, the embodiments in this section and the features in the embodiments can be combined with each other under the condition of no conflict.

[0025] Please refer to figure 1 , the present invention will be described in further detail below in conjunction with embodiment.

[0026] As shown in the figure, the hydraulic motor test system of this embodiment mainly includes a motor 1, a parallel compensation pump 2, a series compensation pump 3, a first oil circuit 01, a second oil circuit 02, a compensation oil circuit 03, a feedback oil circuit 04, Reversing valve 16, tested motor 17, loading motor 24, gearbox 18, motor 23, bridge hydraulic block 25, etc.

[0027] Wherein, the tested motor 17 is docked with the loading motor 24 throu...

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Abstract

The invention relates to the technical field of motor tests and discloses a testing system of a hydraulic motor. The testing system of the hydraulic motor comprises a motor, a speed changing box, a tested motor, a loading motor, a first oil way, a second oil way, a feedback oil way and a compensation oil way. The speed changing box is provided with an acceleration gear and a deceleration gear, the input end of the speed changing box is in driving connection with the output end of the motor, the loading motor is butted with the tested motor through a power shaft, the output end of the speed changing box is in driving connection with the power shaft, the first oil way serves as an oil inlet channel of the tested motor, the second oil way serves as an oil return channel of the tested motor, the oil outlet end of the feedback oil way is communicated with the first oil way, and the oil outlet end of the feedback oil way selectively supplies oil for the oil inlet end of the feedback oil way or supplies oil for the oil inlet end of the feedback oil way through the loading motor. By means of the testing system, mechanical and hydraulic compensation power recovery modes or the hydraulic compensation power recovery mode can be selected according to needs, and testing requirements for power tests, service life tests, batch tests and the like on most majority of hydraulic motors can be met.

Description

technical field [0001] The invention relates to the technical field of motor testing, in particular to a hydraulic motor testing system. Background technique [0002] The hydraulic motor is the executive element in the hydraulic transmission system and the core component of the hydraulic transmission. It is widely used in various fields such as machinery, machine tools, ships, military, aerospace, petroleum, etc. Its performance directly affects and determines the performance of the hydraulic system and the whole machine. Therefore, it is very important to test the performance characteristics of hydraulic motors. [0003] At present, the test of hydraulic motor can be divided into two kinds of loading test systems: direct loading and power recovery from the energy recovery or not. The direct loading system has simple structure, convenient and accurate loading, and less interference, but it consumes a lot of energy and is not suitable for high-power tests. , Long-term life t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B19/00
Inventor 缪雄辉刘宏洋
Owner SANY AUTOMOBILE MFG CO LTD
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