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Electric proportional pressure reducing buffer valve for construction machinery

An electric proportional pressure reducing valve and electric proportional pressure reducing technology are used in mechanical equipment, fluid pressure actuating devices, servo motor components, etc., which can solve the problems of large noise and no energy saving, and achieve the effect of energy saving and easy realization.

Active Publication Date: 2017-01-04
GUANGXI LIUGONG MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the buffering of the actuator is generally achieved without or through the throttling of the oil inlet and outlet of the actuator. Without buffering, the actuator will receive a large impact and generate a lot of noise; if the throttling buffer is used, there will be a lot of pressure. Loss, generate a lot of heat, no energy saving

Method used

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  • Electric proportional pressure reducing buffer valve for construction machinery
  • Electric proportional pressure reducing buffer valve for construction machinery

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Embodiment Construction

[0009] Such as figure 1 As shown, in the present invention, an electric proportional pressure reducing valve 1, a check valve, a throttle valve 2 and a relief valve 3 are sequentially connected between the oil inlet P and the oil outlet T. The channel between the valves 2 is provided with an output oil port A, and in this embodiment, the above-mentioned hydraulic components are made into an electric proportional decompression buffer valve block B.

[0010] The outlet pressure of the output oil port A of the electric proportional pressure reducing valve 1 is not a certain value, and the opening of the pressure reducing valve is controlled by its own proportional solenoid valve to change the outlet pressure value of the pressure reducing valve. The proportional solenoid valve receives the electrical signal from the displacement (angular displacement) sensor installed on the moving actuator, and controls the outlet pressure of the pressure reducing valve by obtaining the electric...

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Abstract

An electric proportional decompression cushion valve for engineering machines is characterized in that an electric proportional decompression valve 1, a check valve, a throttling valve 2 and an overflow valve 3 are sequentially connected between an oil inlet P and an oil outlet T, and an oil output opening A is formed in a channel between the check valve and the throttling valve 2. The electric proportional decompression cushion valve has the advantages of being easy to achieve, saving energy, and being suitable for a loader of various tonnages and other engineering machines.

Description

technical field [0001] The invention relates to the technical field of engineering mechanism hydraulic systems, in particular to an electric proportional decompression buffer valve for engineering machinery. Background technique [0002] At present, the buffering of the actuator is generally achieved without or through the throttling of the oil inlet and outlet of the actuator. Without buffering, the actuator will receive a large impact and generate a lot of noise; if the throttling buffer is used, there will be a lot of pressure. Loss, generate a lot of heat, not energy saving. Contents of the invention [0003] The purpose of the present invention is to provide a construction machinery that can be used on construction machinery, such as loaders, so that the actuator has a buffering effect during fast movement, avoiding noise, and energy-saving construction machinery power ratio decompression buffer valve. [0004] The solution of the present invention is as follows: th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
Inventor 初长祥梁振国王允
Owner GUANGXI LIUGONG MASCH CO LTD