A kind of numerical control rotary core type direct acting proportional valve
A proportional valve and direct-acting technology, which is applied in the direction of multi-way valves, valve devices, engine components, etc., can solve problems such as complex structures and inability to achieve high-precision control, and achieve multiple specifications, satisfactory servo accuracy, and reliability high effect
Active Publication Date: 2018-01-12
武汉市汉诺优电控有限责任公司
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Problems solved by technology
The structure of this invention is complex and cannot achieve high-precision control
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[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0024] Such as figure 1 , figure 2 , image 3 As shown, a numerically controlled rotary core type direct-acting proportional valve includes a servo motor 1, a support 2, a rotary core 4, a valve sleeve 5, a valve body 6 and a valve cover 7; the middle part of the valve body 6 is provided with a valve chamber; The valve sleeve 5 is set in the valve cavity; the support 2 is set at one end of the valve body 6, and the valve cover 7 is set at the other end of the valve body 6; the servo motor 1 is set at the end of the support 2 away from the valve cover 7; the rotary core 4 One end is placed in the valve sleeve 5, and the other end of the rotary core 4 is placed in the support 2 and is fixedly connected with the out...
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The invention relates to a numerical control rotary core type direct-operated proportional valve. The numerical control rotary core type direct-operated proportional valve comprises a servo motor, a supporting seat, a rotary core, a valve sleeve, a valve body and a bonnet, wherein a valve cavity is formed in the middle of the valve body; the valve sleeve is arranged in the valve cavity; the supporting seat is arranged at one end of the valve seat, and the bonnet is arranged at the other end of the valve body; the servo motor is arranged at one end of the supporting seat; one end of the rotary core is arranged in the valve sleeve, and the other end is fixedly connected with the servo motor; five annular grooves are formed in the inner wall of the valve cavity; an oil return port T, a pressure oil port P, a work oil port A and a work oil port B are formed in the valve body; five pairs of oil holes are formed in the valve sleeve; two groups of concave oil channels are formed in the rotary core. The numerical control rotary core type direct-operated proportional valve has the benefits as follows: high-precision open-loop proportional control can be realized with a digital technology, and satisfying bandwidth and servo precision are realized. Rotation of the rotary core replaces valve core sliding of the conventional direct-operated proportional valve, the reliability is high, the maximum diameter can reach 32 mm, a mechanical structure and an electronic control system are simpler and have many specification, and utilization is convenient.
Description
technical field [0001] The invention relates to a numerically controlled rotary core type direct-acting proportional valve. Background technique [0002] There is a utility model patent, the patent number of which is CN201310394894. The utility model provides a motor proportional valve, which includes a motor part and a mechanical hydraulic valve part. Rolling nut connection, the outer middle of the nut spool has an annular groove, and the lower part has an annular groove. The corresponding position of the valve body has a constant pressure oil port, a control oil port and an oil discharge port. There is a compound spring in the complex cavity, the compound spring is placed between the upper spring seat and the lower spring seat, the upper spring seat is against the stop of the nut valve core, and the lower spring seat is threaded with the lower end of the nut valve core The matching nut is positioned, the nut valve core has a guide key at the lower end, and the other end o...
Claims
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IPC IPC(8): F15B13/02F16K11/076
CPCF15B13/02F16K11/076
Inventor 郭建业郭恩郭奇
Owner 武汉市汉诺优电控有限责任公司