Bidirectional small low-leakage high-pressure electromagnetic directional valve
An electromagnetic directional valve, low leakage technology, applied in the field of high-pressure solenoid valve, can solve the problems of small volume, solenoid valve volume, large leakage, etc., and achieve the effect of small wear and long service life
Active Publication Date: 2014-01-29
湖南金润电液控制系统有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide a two-way, small-volume, low-leakage high-pressure electromagnetic reversing valve to solve the problems of the existing solenoid valve due to the large flow direction, volume, and leakage of the medium.
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[0018] A two-way, small-volume, low-leakage high-voltage electromagnetic reversing valve has a manual pressure-regulating bolt hole 13 on the upper end of the electromagnet housing 11, and an electromagnet housing mounting bracket 6 on the lower end of the electromagnet housing 11. The manual pressure regulating bolt hole 13 has a manual pressure regulating bolt 12, and the electromagnetic coil 15 is installed in the electromagnet housing 11 through the coil mounting bracket 19. The needle 9 is connected to the electromagnetic coil 15; the armature sleeve 8 is installed in the electromagnetic coil 15, and the armature 16 is installed in the armature sleeve 8; Connected; the main valve seat 24 is connected with the electromagnet housing 11, and there is an adjusting gasket 20 between the upper end of the main valve seat 24 and the coil mounting bracket 19, and an oil return port O port 5 is opened on the side wall of the main valve seat 24. The lower end of the main valve seat ...
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The invention discloses a bidirectional small low-leakage high-pressure electromagnetic directional valve. The small high-pressure electromagnetic valve adopts a pilot type structure, wherein a pilot grade adopts a cone valve structure; a main valve grade adopts a nonmetal flexible-seal slide valve structure; and check valve damping assemblies are used for automatically completing the switching of a pressure source of a containing cavity of a main valve core so as to realize the bidirectional flow of high-pressure mediums. The bidirectional small low-leakage high-pressure electromagnetic directional valve has the beneficial effects that by adopting a pilot type insertion structure, the valve can be applied to occasions with high pressure, large flow and small spaces; two work oil ports H and P are respectively connected with a lower cavity of the main valve core through the two check valve damping assemblies, and the balance pressure of a main valve comes from the work oil port with larger pressure, so that the bidirectional flow of the mediums can be realized; and the valve can avoid leakage basically, and is small in abrasion and long in service life.
Description
technical field [0001] The invention relates to a high-pressure electromagnetic valve, in particular to a small-volume electromagnetic reversing valve with a pressure up to 40MPa and medium flow in two directions. Background technique [0002] With the development of science and technology, the pressure of hydraulic and pneumatic systems is getting higher and higher, and the degree of automation is also getting higher and higher. The high-pressure pneumatic system with high-pressure air as the working medium has high power density and large instantaneous expansion due to its unique , strong explosive force, wide temperature adaptability and other characteristics, it has been applied in the fields of aerospace, ships, high-pressure air source vehicles, construction machinery and so on. In aviation, aerospace and some special fields, with the continuous development of science and technology, the application of new materials and new processes, the working pressure of high-press...
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IPC IPC(8): F16K31/06F16K11/10
Inventor 刘金刚祝建仁杨世平谭志飞
Owner 湖南金润电液控制系统有限公司