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Load sensing oil unloading control valve of hydraulic multi-way valve

A load sensing and control valve technology, applied in fluid pressure actuation devices, servo motor components, mechanical equipment, etc., can solve the problems of unloading, non-following controllability, energy waste, low work efficiency, etc.

Pending Publication Date: 2022-05-20
申忠玉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the load-sensing oil of hydraulic multi-way valves on construction machinery such as excavators in the market has problems such as unloading without follow-up controllable and slow unloading speed, some energy waste and low work efficiency.

Method used

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  • Load sensing oil unloading control valve of hydraulic multi-way valve
  • Load sensing oil unloading control valve of hydraulic multi-way valve
  • Load sensing oil unloading control valve of hydraulic multi-way valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment one figure 1

[0010] A load-sensing oil unloading control valve for a hydraulic multi-way valve, characterized in that the load-sensing oil unloading control valve for a hydraulic multi-way valve includes a control valve (1), a spool (2), and a spool spring (3), spring chamber oil return passage (4), control valve oil return passage (5), spool control force (6), control valve oil inlet passage (7).

[0011] Among them, the spool (2) is installed in the control valve (1), the spool spring (3) is installed on the right side of the spool (2), and the spring chamber oil return channel (4) is connected to the right side of the spool (2) and the control The oil return channel (5) of the valve is connected, the oil return channel (5) of the control valve is connected to the oil return, the control force of the spool (6) acts on the left side of the spool (2), and the oil inlet channel (7) of the control valve is connected to the hydraulic multi-channel Valve load...

Embodiment 2

[0012] Embodiment two figure 2

[0013] 2. A hydraulic multi-way valve load-sensing oil unloading control valve, characterized in that: said hydraulic multi-way valve load-sensing oil unloading control valve includes a control valve (1), a spool (2), a valve Core spring (3), spring chamber oil return passage (4), control valve oil return passage (5), spool control force (6), control valve oil inlet passage (7).

[0014] Among them, the spool (2) is installed in the control valve (1), the spool spring (3) is installed on the right side of the spool (2), and the spring chamber oil return channel (4) is connected to the right side of the spool (2) and the control The oil return channel (5) of the valve is connected, and the oil return channel (5) of the control valve is connected to the oil return. The control force of the spool (6) is the hydraulic pressure that controls the operation of the hydraulic multi-way valve and acts on the left side of the spool (2). The oil inlet p...

Embodiment 3

[0015] Embodiment Three image 3

[0016] 3. A hydraulic multi-way valve load-sensing oil unloading control valve, characterized in that: said hydraulic multi-way valve load-sensing oil unloading control valve includes a control valve (1), a spool (2), a valve Core spring (3), spring chamber oil return passage (4), control valve oil return passage (5), spool control force (6), control valve oil inlet passage (7).

[0017] Among them, the spool (2) is installed in the control valve (1), the spool spring (3) is installed on the right side of the spool (2), and the spring chamber oil return channel (4) is connected with the right side of the spool (2) and the control The oil return channel (5) of the valve is connected, and the oil return channel (5) of the control valve is connected to the oil return. The control force of the spool (6) is the electromagnetic force that works simultaneously with the hydraulic multi-way valve and acts on the left side of the spool (2). The oil i...

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Abstract

A load sensing oil unloading control valve of a hydraulic multi-way valve is composed of a valve element, a valve element spring, a spring cavity oil return channel, a control valve oil return channel, a valve element control force and a control valve oil inlet channel. When the hydraulic multi-way valve works, unloading of load sensing oil of the hydraulic multi-way valve is controllable in a follow-up mode, when the hydraulic multi-way valve does not work, the load sensing oil of the hydraulic multi-way valve is rapidly unloaded, the load sensing oil can be well utilized, energy can be saved, and it can be guaranteed that the hydraulic multi-way valve works stably and efficiently.

Description

technical field [0001] The invention relates to the load sensing oil unloading of a hydraulic multi-way valve, in particular to a load sensing oil unloading control valve for a hydraulic multi-way valve. Background technique [0002] At present, the load-sensing oil of hydraulic multi-way valves on construction machinery such as excavators in the market has problems such as non-following controllable unloading and slow unloading speed, some energy waste and low work efficiency. Therefore, there is an urgent need in the market for a hydraulic multi-way valve whose load sensing oil unloading can be controlled accordingly when it is working, and which can quickly unload the load sensing oil when it is not working, so as to realize both good use of load sensing oil and Energy can be saved, and the hydraulic multi-way valve can work smoothly and efficiently. Contents of the invention [0003] The purpose of the present invention is to realize the unloading controllable of the ...

Claims

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Application Information

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IPC IPC(8): F15B13/02
CPCF15B13/024
Inventor 申忠玉
Owner 申忠玉
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