A numerically controlled rotary core proportional servo valve
A proportional servo valve and core type technology, applied in the direction of servo motor components, valve details, valve devices, etc., can solve the problems of complex mechanical structure and electronic control system, low localization rate, and manufacturing difficulties, so as to improve the level of localization , many varieties and specifications, and easy maintenance
Active Publication Date: 2017-07-14
武汉市汉诺优电控有限责任公司
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Problems solved by technology
The mechanical structure and electric control system are complex, difficult to manufacture, and inconvenient to use
In addition, the localization rate of various existing proportional servo valves and their key components is low, and the economy is poor
Method used
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Embodiment Construction
[0016] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples cited are only used to explain the present invention, and are not used to limit the scope of the present invention.
[0017] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, a numerically controlled rotary core type proportional servo valve includes a servo motor 1, a support 2, a rotary core 4, a pilot piston 5, a main valve core 7, a main valve body 8, a spherical sleeve 10, a main valve cover 11, Pilot valve body 12.
[0018] The support 2 is arranged at the left end of the pilot valve body 12, the main valve body 8 is arranged at the right end of the pilot valve body 12; the main valve cover 11 is arranged at the right end of the main valve body 8; the servo motor 1 is arranged at the left end of the support 2; The middle of the valve body 8 is provided with a main valve cavity, and the main valve body 8 is provided with an o...
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The invention relates to a numerical control rotary core type proportional servo valve. The numerical control rotary core type proportional servo valve comprises a servo motor, a supporting seat, a rotary core, a pilot piston, a main valve core, a main valve body, a spherical sleeve, a main bonnet and a pilot valve body, wherein a main valve cavity is formed in the middle of the main valve body, and an oil return port, a pressure oil port and at least two work oil ports are communicated with the main valve cavity and formed in the main valve body; the right end surface of the main valve core and the inner wall of the spherical sleeve constitute a first control cavity; a pilot valve cavity is formed in the middle of the pilot valve body, and the left end surface of the pilot piston and the inner wall of the pilot valve cavity constitute a second control cavity; a pressure oil channel and an oil return cavity are formed in the pilot valve body; an inner cavity is formed in the pilot piston, the right end of the rotary core is arranged in the inner cavity, and the servo motor is fixedly connected with the left end of the rotary core. The numerical control rotary core type proportional servo valve has the benefits as follows: compared with a proportion electro-magnet, the servo motor has good servo motor linearity and unlimited linear range, high-precision open-loop proportional servo control can be realized conveniently with a digital technology, and the proportional servo valve is simple in structure, flexible to control, convenient to use and high in reliability.
Description
Technical field [0001] The invention relates to a numerically controlled rotary core type proportional servo valve. Background technique [0002] There is a Chinese invention patent application document, its application number is 95196278.7. The invention discloses a pilot control servo valve with four main flow chambers, an axial sliding main control spool with four control sides, and a limited main control spool The spring is centered on the return spring in the center. A valve sleeve is provided with annular openings corresponding to the first, second, and third main flow chambers, and a front opening corresponding to the fourth main flow chamber. The pressure balance surface is formed by the second front surface of the main control valve core located in the spring cavity. The main control valve core acts the pressure in the fourth main flow chamber on the pressure balance surface through the pressure relief channel. [0003] There is a Chinese utility model patent, its appli...
Claims
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IPC IPC(8): F15B13/02F16K31/383
CPCF15B13/022F16K31/383
Inventor 郭建业郭恩郭奇
Owner 武汉市汉诺优电控有限责任公司