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Internal-integration small-flow multifunctional control valve

A multi-functional control valve, small flow technology, applied in the direction of fluid pressure actuating device, servo motor assembly, mechanical equipment, etc., can solve the problems of inconvenient disassembly, installation and maintenance, large space occupation, etc., to achieve convenient installation and maintenance, High degree of integration and small volume

Inactive Publication Date: 2019-07-12
HUZHOU SHENGLI HYDRAULIC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] With the continuous improvement of the level of science and technology, the large-scale application of agricultural machinery has not only greatly improved the production efficiency of agriculture, but also changed the situation in which manpower dominated agricultural production in the past. When the existing agricultural machinery is working, its Many of the control mechanisms are carried out by oil cylinders, because oil cylinders have sufficient force relative to cylinders to meet the needs of agricultural machinery, and corresponding valves are required to control the actions of oil cylinders. There are many valves, and scattered installations not only take up a lot of space , and it is very inconvenient to disassemble, install and maintain

Method used

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  • Internal-integration small-flow multifunctional control valve

Examples

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Embodiment

[0021] Example: such as Figure 1-8 As shown, the integrated small flow multifunctional control valve includes a valve body 1, an oil inlet 101 provided on the valve body 1, an oil return port 102 and a relief valve 2, and the oil inlet is connected to an external oil pump. The hydraulic oil is provided by the oil pump, and the oil return port is connected to the external oil tank, and the hydraulic oil after work is returned to the oil tank for continuous circulation; the overflow valve is used to control the system pressure of the entire valve to ensure the safety of the entire system; it is also included in the Five three-position four-way electromagnetic reversing valves 3 arranged in parallel with each other on the valve body 1, five first external oil ports 103 and five second external oil ports 104 arranged on the valve body 1 , two built-in double hydraulic control check valves 4 arranged in the valve body 1 and an unloading solenoid valve 5 arranged in parallel with t...

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Abstract

The invention provides an internal-integration small-flow multifunctional control valve. The internal-integration small-flow multifunctional control valve comprises a valve body, an oil inlet, an oilreturn opening, an overflow valve, five three-position four-way electromagnetic reversing valves mounted on the valve body and mutually connected in parallel, five first externally connected oil openings formed in the valve body, five second externally connected oil openings, two built-in double hydraulic control one-way valves arranged in the valve body and an unloading electromagnetic valve arranged on the valve body and connected with the overflow valve in parallel, and the two built-in double hydraulic control one-way valves are separately connected with the two three-position four-way electromagnetic reversing valves; and the three-position four-way electromagnetic reversing valves are provided with electromagnetic valve oil inlets communicating with the oil inlet, electromagnetic valve oil return openings communicating with the oil return opening, first working oil openings and second working oil openings, when the three-position four-way electromagnetic reversing valves are in aneutral position, the electromagnetic valve oil return openings, the first working oil openings and the second working oil openings communicate mutually. The internal-integration small-flow multifunctional control valve has high integration degree, small volume and very convenient disassembly, installation and maintenance.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to an internally integrated small-flow multifunctional control valve for agricultural machinery. Background technique [0002] With the continuous improvement of the level of science and technology, the large-scale application of agricultural machinery has not only greatly improved the production efficiency of agriculture, but also changed the situation in which manpower dominated agricultural production in the past. When the existing agricultural machinery is working, its Many of the control mechanisms are carried out by oil cylinders, because oil cylinders have sufficient force relative to cylinders to meet the needs of agricultural machinery, and corresponding valves are required to control the actions of oil cylinders. There are many valves, and scattered installations not only take up a lot of space , and disassembly, installation and maintenance are very inconve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02
CPCF15B13/02F15B13/027
Inventor 沈振嗣倪富伟李佳辉杨文波费伟杰
Owner HUZHOU SHENGLI HYDRAULIC
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