High-precision valve actuator

A driver, high-precision technology, applied in the direction of valve details, valve devices, engine components, etc., can solve the problems of long closed-loop control time, poor valve driving accuracy, difficult disassembly and maintenance, etc., to reduce maintenance costs, ensure driving accuracy, light weight effect

Active Publication Date: 2017-09-05
SHANGHAI AOZ PETROLEUM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of poor valve driving accuracy, long closed-loop control time, and difficult disassembly and maintenance in practical application, the purpose of this invention is to propose a high-precision valve driver. The specific scheme is as follows:

Method used

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Embodiment Construction

[0038]The present invention will be further described in detail below with reference to the examples and figures, but the embodiments of the present invention are not limited thereto.

[0039] Such as figure 1 As shown, a high-precision valve driver includes a housing 1, and a cylindrical cylindrical groove 2 is opened in the housing 1 along its length direction, and the cylindrical groove 2 forms an opening at one end of the housing 1. A hoisting hole 3 is provided on the outer wall of the housing 1 . A sleeve 4 is sleeved coaxially in the cylindrical groove 2 . The end of the sleeve 4 away from the opening of the housing 1 is the driving connection part, and the end close to the opening of the housing 1 is the clamping part. The driving connecting part is connected with a secondary helical gear set, and the inner wall of the clamping part is provided with a valve The shape of the valve stem matches the clamping groove 5. When in use, one end of the valve stem directly ext...

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Abstract

The invention discloses a high-precision valve actuator. The high-precision valve actuator comprises a shell, a sleeve and a driving assembly for driving the sleeve to rotate. The driving assembly comprises multiple coaxially arranged hydraulic barrels and main bevel gears driven by the hydraulic barrels to move up and down. The main bevel gears are used in cooperation with auxiliary bevel gears arranged in the sleeve, linear motion of piston plates in the hydraulic barrels is converted into rotational motion of the sleeve, and therefore a valve rod is driven to rotate. Due to the fact that the rotation precision of all the main bevel gears is different, the multiple main bevel gears are used in cooperation to rotate, the valve rod can be easily and rapidly rotated to a set angle, and the response speed is high. Fewer drive parts needed by a driving manner are needed, control is also convenient, and the whole valve actuator is small in size and low in weight. All the parts are detachably arranged, and great convenience is also brought to later maintenance of the whole valve actuator.

Description

technical field [0001] The invention relates to the technical field of valve drive control, more specifically, it relates to a high-precision valve driver. Background technique [0002] The valve is a control component in the fluid delivery system, which has functions such as cut-off, adjustment, flow diversion, reverse flow prevention, pressure stabilization, flow diversion or overflow pressure relief. At present, the valves are mainly divided into ball valves, butterfly valves, plug valves and so on. The basic structure of the above-mentioned valve includes a valve plate and a valve stem, and the valve stem is used to drive the valve plate to rotate so as to control the fluid flow in the pipeline. In the prior art, the rotation of the valve stem is often realized by a valve driver connected to it in transmission. The valve actuators currently on the market often only have the function of opening and closing the valve, and do not have the function of flow regulation. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/163F16K37/00
CPCF16K31/163F16K37/0016
Inventor 宋正华宋逸飞王志杰
Owner SHANGHAI AOZ PETROLEUM EQUIP CO LTD
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