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Proportional electromagnet device

A proportional electromagnet and armature technology, applied in the field of proportional electromagnet devices, can solve the problems of inaccurate pressure adjustment of proportional valves, and achieve the effects of small dead zone and hysteresis, fast step response and good linearity

Inactive Publication Date: 2016-03-30
SUZHOU YUANSHUO PRECISION MOLD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The very important part of the current proportional valve is the proportional electromagnet. If the suction output of the proportional electromagnet cannot meet the spring elastic curve, it will cause the problem of inaccurate adjustment of the proportional valve pressure.

Method used

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  • Proportional electromagnet device

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] Such as figure 1 As shown, a proportional electromagnet device includes: a pole shoe 1, a coil 2, a housing 3, an armature 4, an adjusting screw 5, and an inner cover 6. The coil 2 is sleeved in the housing 3, and the front end of the housing 3 A pole shoe 1 is provided, and an adjusting screw 5 is provided through the casing 3. The front end of the adjusting screw 5 passes through the pole shoe 1, the middle part is provided with an armature 4, and the rear end is provided with an inner cover 6; the rear end of the pole shoe 1 A limit ring 7 is provided; a magnetic isolation ring 8 is provided at the front end of the armature 4 .

[0016] An outer cover 9 is also included, and the outer cover 9 is arranged on the inner cover 6 .

[0017] It also includes a spring 10 arranged between the armature 4 and the inner cover 6 .

[0018] A support ring 11 is also in...

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PUM

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Abstract

The invention discloses a proportional electromagnet device, which comprises a pole shoe, a coil, a shell, an armature, an adjusting bolt and an inner cover, wherein the coil is sleeved with the shell; the pole shoe is arranged at the front end of the shell; the adjusting bolt is arranged in the shell in a penetrating manner; the front end of the adjusting bolt passes through the pole shoe; the armature is arranged in the middle part; the inner cover is arranged at the rear end; a limiting ring is arranged at the rear end of the pole shoe; a magnetic isolating ring is arranged at the front end of the armature; an outer cover is arranged on the inner cover; a spring is arranged between the armature and the inner cover; a support ring sleeves the armature; and a guide pipe sleeves the outer sides of the pole shoe and the armature. The proportional electromagnet device disclosed by the invention can keep output force constant within an effective working stroke when the current of the coil is fixed, and has good linearity, relatively small dead zone and hysteresis, fast step response and high frequency response.

Description

technical field [0001] The invention relates to a proportional electromagnet device, which belongs to the technical field of proportional valve accessories. Background technique [0002] At present, for some construction machinery equipment with a high degree of automation, such as full hydraulic excavators, concrete pump trucks, etc., continuous stepless control of system parameters, such as pressure and flow, is often required. The electro-hydraulic proportional valve is a typical control valve that meets this requirement. [0003] The very important part of the current proportional valve is the proportional electromagnet. If the suction force output of the proportional electromagnet cannot meet the spring force curve, it will cause the problem of inaccurate adjustment of the proportional valve pressure. Contents of the invention [0004] Purpose: In order to overcome the deficiencies in the prior art, the present invention provides a proportional electromagnet device. ...

Claims

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Application Information

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IPC IPC(8): H01F7/08H01F7/13
CPCH01F7/081H01F7/13
Inventor 何婷朱磊
Owner SUZHOU YUANSHUO PRECISION MOLD
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