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Proportional reversing valve combination valve element based on SLM technology and proportional reversing valve

A proportional reversing valve and combined spool technology, applied in multi-way valves, valve devices, valve details, etc., can solve problems such as stoppage, spool design and manufacturing limitations, reduce weight, facilitate assembly, and improve use performance effect

Active Publication Date: 2017-04-26
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the design and manufacture of the spool are limited by traditional machine tool processing, many spool structures with superior performance only stay in the design stage

Method used

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  • Proportional reversing valve combination valve element based on SLM technology and proportional reversing valve
  • Proportional reversing valve combination valve element based on SLM technology and proportional reversing valve
  • Proportional reversing valve combination valve element based on SLM technology and proportional reversing valve

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Embodiment Construction

[0022] The aforementioned and other technical contents, features and effects of the present invention will be further described below in conjunction with the accompanying drawings.

[0023] figure 1 and figure 2 It is a cross-sectional view of an existing direct-acting proportional reversing valve, which is mainly composed of a valve body 1, a valve core 2, a pressure spring 3, a proportional electromagnet 4 and an amplifier 5, and the valve core 2 is set in the valve body 1 , both ends of the valve body 1 are provided with a proportional electromagnet 4, one end of the pressure spring 3 is against one end of the valve core 2, one end of the pressure spring 3 is against the proportional electromagnet 4, and the amplifier 5 is connected to the proportional The electromagnet 4 is connected, and the valve core 2 moves left and right through the attraction of the proportional electromagnet 4 to realize the reversing, so as to realize the change of the flow rate or the on-off of ...

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Abstract

The invention discloses a proportional reversing valve combination valve element based on SLM technology and a proportional reversing valve. The combination valve element consists of a first half valve element and a second half valve element; the first half valve element and the second half valve element are both hollow structures; multiple throttling port sets are respectively formed in the axial direction of the valve element at the externals of the first half valve element and the second half valve element; the throttling port sets consist of multiple compound throttling ports uniformly distributed in the peripheral direction of the valve element; and the first half valve element and the second half valve element are spirally screwed. The SLM quick forming technology is applied to manufacturing of the valve element, so that the proportional reversing valve element with total hollow structure inside is designed, the mass of the valve element can be prominently reduced, the frequency response is increased, meanwhile, the inertia force in the moving process of the valve element is reduced, the blockage of the valve element during moving is effectively prevented, meanwhile, the friction force is reduced, the use performance of the proportional reversing valve is improved, and the life of the proportional reversing valve is prolonged.

Description

technical field [0001] The invention belongs to the field of electro-hydraulic proportional control, in particular to a combined spool of a proportional reversing valve based on SLM technology and a proportional reversing valve. Background technique [0002] Electro-hydraulic proportional directional control valve is an important part of electro-hydraulic proportional control technology. figure 1 It is a cross-sectional view of an existing direct-acting proportional directional valve, which is mainly composed of a valve body, a valve core, a pressure spring, a proportional electromagnet and an amplifier. The spool is placed in the valve body, and the spool moves left and right through the attraction of the proportional electromagnet to achieve reversing, so as to realize the change of flow rate or the on-off of oil circuit. The spool is a key part of the proportional directional valve, and its structural design and manufacturing quality have a decisive impact on the perform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/065F16K31/06F15B13/02
CPCF15B13/02F16K11/065F16K31/06
Inventor 祝毅葛翔
Owner ZHEJIANG UNIV
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