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Load system of hydrostatic transmission device detecting platform

A technology of transmission device and detection platform, applied in the direction of fluid pressure actuation device, fluid pressure actuation system safety, fluid pressure actuation system components, etc., can solve the problem of high manufacturing cost, high energy consumption, and reduced valve stem sealing performance. problem, to achieve the effect of less influencing factors, lower pollution level, and sensitive response

Active Publication Date: 2014-04-02
NANTONG AMC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] On the previous hydraulic testing platform, the load is usually provided by the hydraulic pump, but in the load system, the self-control valve usually extends the valve stem, and the rotation or movement of the valve core is controlled by an electric, pneumatic, or hydraulic actuator. , the sealing performance of the valve stem is reduced, and internal and external leakage has become a problem to be solved; and the structure is complex, the manufacturing cost is relatively high, the action is slow, and the energy consumption is large

Method used

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  • Load system of hydrostatic transmission device detecting platform

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] The load system of the detection platform of the hydrostatic transmission device of the present invention is mainly composed of the following components: a fuel tank 1 , a one-way hydraulic pump 2 , a loading pump 3 , and an oil supply circuit 4 for the loading pump.

[0019] As shown in the figure, the oil supply circuit 4 of the loading pump is composed of the circuit A4-1 and the circuit B4-2 in parallel. The circuit A4-1 is composed of the check valve a5 and the check valve b6 in series. The two check valves The installation direction is the same. The circuit B4-2 is composed of the one-way valve c7 and the one-way valve d8 in series. The installation directions of the two one-way valves are the same. The oil ports are connected, and the oil outlets are connected.

[0020] Fuel tank 1, one-way hydraulic pump 2, and loading...

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Abstract

The invention discloses a load system of a hydrostatic transmission device detecting platform. The load system is structurally characterized in that a circuit A and a circuit B are connected in parallel to form a loading pump feed circuit, each of the circuit A and the circuit B is formed by series connection of two one-way valves, an oil tank, a one-way hydraulic pump and the loading pump feed circuit are serially connected to form a closed circuit, and two ends of a loading pump are communicated with middle positions of the circuit A and the circuit B respectively. In order to protect the whole circuit, a pilot-operated relief valve is connected in parallel in front of the loading pump feed circuit; in order to regulate oil pressure of the whole circuit and working pressure of the loading pump, an electro-hydraulic pilot-operated proportional relief valve is serially connected behind the loading pump feed circuit. The load system has the advantages that the loading pump can rotate forwards and backwards directly without stopping the one-way hydraulic pump, and a solenoid valve is sensitive in response and less in consumption.

Description

technical field [0001] The invention relates to a load system, in particular to a load system used on a hydrostatic transmission testing platform. Background technique [0002] In the machinery industry standard of the People's Republic of China, the basic parameters, technical requirements, test methods, inspection rules, signs and packaging of hydrostatic transmissions are all required. Among them, the input speed, input torque, output speed, Output torque and no-load output speed. For this reason, the standard stipulates the experimental equipment. The input end of the hydrostatic transmission device to be tested is driven by a motor, and a tachometer and a torque meter are installed between the motor and the input end of the hydrostatic transmission device to measure the input speed and torque. Input torque; a loading device is connected to the output end of the hydrostatic transmission to be tested, and a tachometer and a torque meter are installed between the output e...

Claims

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Application Information

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IPC IPC(8): F15B11/02F15B13/02F15B20/00F15B21/04
Inventor 戚顺平
Owner NANTONG AMC MACHINERY
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