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Plunger-type high pressure actuator

An actuator and plunger type technology, applied in the field of plunger type high-pressure actuators, can solve problems such as inability to withstand high pressure, and achieve the effect of low cost and high speed

Active Publication Date: 2014-12-24
ZHEJIANG ZHANXUDE AUTO CONTROL VALVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pneumatic actuators generally can only withstand the pressure of 0.4-0.8Mpa, and cannot withstand high pressure.

Method used

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  • Plunger-type high pressure actuator
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  • Plunger-type high pressure actuator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as Figure 1-4 As shown, the present invention provides a plunger-type high-pressure actuator, including a cylinder body 6, a cylinder head 2, a plunger rack 5 and a pinion shaft 13; The end is fixedly connected with the cylinder body 6; the cylinder body 6 is provided with an eccentric horizontal through hole and a vertical through hole, and the plunger rack 5 is arranged in the horizontal through hole, and can make a straight line in the horizontal through hole. Movement, the gear shaft 13 is arranged in the vertical through hole, and can be rotated in the vertical through hole. The size of the eccentricity 61 of the two holes affects the size of the torque. The larger the eccentricity, the larger the pitch diameter of the gear, and the larger the torque, and vice versa. The middle part of the plunger rack 5 is provide...

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PUM

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Abstract

The invention provides a plunger-type high pressure actuator. The high pressure actuator comprises a cylinder body, cylinder covers, a plunger rack and a gear shaft, wherein two cylinder covers are respectively arranged at two ends of the cylinder body and are fixedly connected with the cylinder body; a horizontal through hole and a vertical through hole which are eccentric are formed in the cylinder body; the plunger rack is arranged in the horizontal through hole and can do linear motion in the horizontal through hole; the gear shaft is arranged in the vertical through hole and can do rotation motion in the vertical through hole; and a plurality of racks are arranged in the middle of the plunger rack and are engaged with the gear shaft. By adopting the plunger-type high pressure actuator, the plurality of racks are arranged in the middle of the plunger rack, and a contact middle point of the racks and the gear on the gear shaft is close to a central line of the plunger; and therefore, the plunger-type high pressure actuator can bear high pressure.

Description

technical field [0001] The invention belongs to the field of valve driving devices, in particular to a plunger type high-pressure actuator. Background technique [0002] The main function of the valve actuator in the automatic control system is to receive the control signal output by the controller to make the opening of the regulating valve change accordingly, so as to achieve the purpose of adjusting the flow rate of the operating variable. Pneumatic actuators have been widely used because of their simple structure, reliable and stable action, convenient installation and maintenance, and low price. However, pneumatic actuators generally can only withstand the pressure of 0.4-0.8Mpa, and cannot withstand high pressure. Contents of the invention [0003] The present invention aims at the deficiencies of the above-mentioned prior art, and provides a plunger-type high-pressure actuator capable of high pressure. [0004] The present invention is achieved through the followi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/122F16K31/54F16K37/00
Inventor 沈汉民项光中赵力延申小琴赖义豪
Owner ZHEJIANG ZHANXUDE AUTO CONTROL VALVE CO LTD