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Load-sensitive multi-way valve

A load-sensitive, multi-way valve technology, used in fluid pressure actuation devices, servo motor components, mechanical equipment, etc., can solve the problems affecting the use of multi-way valves, unstable oil inlet and return of multi-way valves, etc., and achieve a compact structure. , Reduce the size, not easy to be damaged by collision

Active Publication Date: 2021-11-19
宁波市博尔法液压有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the oil inlet and outlet of the existing multi-way valve are unstable. When there is a problem with any of the single oil inlet pipeline and oil return pipeline, it will affect the use of the multi-way valve.

Method used

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Embodiment Construction

[0039] The following is attached Figure 1-6 The application is described in further detail.

[0040] The embodiment of the present application discloses a load sensitive multi-way valve.

[0041] refer to figure 1 , a load sensitive multi-way valve, including an oil inlet valve body assembly 1, a reversing valve body assembly 2 and an oil return valve body assembly 3, there are multiple reversing valve body assemblies 2, and the reversing valve body assembly in this embodiment The number of 2 is six, and the six reversing valve body assemblies 2 are connected in parallel and located between the oil inlet valve body assembly 1 and the oil return valve body assembly 3 .

[0042] refer to figure 2 The oil passage of the oil inlet valve body assembly 1 part includes an Ls feedback oil passage 41, a main oil inlet pipeline 42, a main oil return pipeline 43 and a main pressure relief pipeline 44 communicating with the main oil inlet pipeline 42 and the main oil return pipeline ...

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Abstract

The invention relates to a load-sensitive multi-way valve, and belongs to the technical field of engineering vehicles. The load-sensitive multi-way valve comprises an oil inlet valve body assembly, a plurality of reversing valve body assemblies and an oil return valve body assembly, the reversing valve body assemblies are connected in parallel, the oil inlet valve body assembly comprises an oil inlet valve body, the reversing valve body assemblies comprise reversing valve bodies, and the oil return valve body assembly comprises an oil return valve body. The oil inlet valve body is provided with a main oil inlet pipeline and a main oil return pipeline, the oil return valve body is provided with an auxiliary oil inlet pipeline and an auxiliary oil return pipeline, and the main oil inlet pipeline and the auxiliary oil inlet pipeline communicate on the reversing valve body and supply oil to the reversing valve body assembly. The main oil return pipeline and the auxiliary oil return pipeline communicate on the reversing valve body and return oil to the reversing valve body assembly. The load-sensitive multi-way valve has the effect of more stable oil inlet and return.

Description

technical field [0001] The present application relates to the field of engineering vehicles, in particular to a load sensitive multi-way valve. Background technique [0002] At present, hydraulic transmission technology is widely used in heavy equipment such as construction machinery, engineering vehicles and walking machinery. Hydraulic multi-way valve groups, especially load-sensing multi-way valves are widely used in various heavy equipment with strong versatility. It can control the running speed and direction of various actuators such as cylinders and motors, and has good precision control and micro-movement characteristics. The load-sensitive multi-way valve can basically meet the requirements of energy-saving, precise and stable operation of the hydraulic system, and compound actions of multiple actuators. and other characteristics. [0003] The existing load-sensing multi-way valve usually consists of an oil inlet valve group, a reversing valve group and an oil retu...

Claims

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Application Information

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IPC IPC(8): F15B13/02
CPCF15B13/024F15B13/025F15B13/02
Inventor 彭宇竺旭曙
Owner 宁波市博尔法液压有限公司
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