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Electromagnetic reversing valve

An electromagnetic reversing valve and electromagnet technology, which is applied in the field of electromagnetic valves, can solve the problems of the reversing valve not being able to reversing normally, the influence of the movement of the valve core, and the influence of the output force of the electromagnet.

Inactive Publication Date: 2017-08-18
JIANGSU HENGLI HYDRAULIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The working oil port of the existing electromagnetic valve direction is connected with the connecting oil passage. When the working oil port produces a pressure shock, it will be transmitted to the connecting oil passage. The pressure change of the connecting oil passage will affect the output force of the electromagnet, and then It affects the movement of the spool, and the reversing valve cannot change direction normally, which will generate vibration noise
The reversing time of the reversing valve in the prior art cannot be adjusted, the reversing speed is fixed, and the pressure shock generated during the reversing cannot be reduced

Method used

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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0017] see Figure 1 to Figure 2 , an electromagnetic reversing valve, comprising a valve body 1, a valve core 2 and an oil chamber 3 disposed inside the valve body 1, and an electromagnet 7 disposed outside the valve core, the electromagnet 7, the valve core 2 and the valve body 1 three A sealed control chamber 4 is formed between them, so that the control chamber 4 and the oil chamber 3 are not connected, and the control chambers 4 are connected through the connecting oil passage 5, and the connecting oil passage 5...

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Abstract

The invention discloses an electromagnetic reversing valve. The valve comprises a valve body, valve cores, oil cavities and electromagnets; the valve cores and the oil cavities are formed in the valve body; the electromagnets are arranged outside the valve cores; sealed control cavities are formed among the electromagnets, the valve cores and the valve body, so that the control cavities do not communicate with the oil cavities; the control cavities communicate with each other through a connecting oil way; and oil flow between the control cavities is balanced through the connecting oil way. In the manner, with the electromagnetic reversing valve, the effect of pressure impact of working oil ports on the connecting oil way can be cut off while the valve core can be reversed smoothly, then the normal reversing cannot be affected, and the vibration noise can be avoided.

Description

technical field [0001] The invention relates to the field of electromagnetic valves, in particular to an electromagnetic reversing valve. Background technique [0002] The working oil port of the existing electromagnetic valve direction is connected with the connecting oil passage. When the working oil port produces a pressure shock, it will be transmitted to the connecting oil passage. The pressure change of the connecting oil passage will affect the output force of the electromagnet, and then It affects the movement of the spool, and the reversing valve cannot change direction normally, and vibration noise will be generated. The reversing time of the reversing valve in the prior art cannot be adjusted, the reversing speed is fixed, and the pressure shock generated during the reversing cannot be reduced. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide an electromagnetic reversing valve, which can make the valv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/07F16K31/06
CPCF16K11/0708F16K31/0613
Inventor 汪立平张耀成刘红光潘红波
Owner JIANGSU HENGLI HYDRAULIC TECH CO LTD
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