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Angular travel transmission device for automatic forward-reverse gear hanging

A transmission device and angular travel technology, applied in the direction of valve operation/release device, valve device, engine components, etc., can solve the problems of asynchronous angular displacement between the operating end and the valve stem end, high installation requirements, installation deformation, etc., to achieve The limit accuracy maintains for a long time, the long-term limit effect, and the effect of precise limit

Pending Publication Date: 2020-05-15
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in actual working conditions, due to the installation deformation of the parts, the connection gap, etc., it is easy to cause the angular displacement of the operating end and the valve stem end to be out of sync.
In order to solve the problem of out-of-synchronization, it is necessary to set the limit position through the mutual cooperation of the two limit blocks and limit tools such as baffles, limit studs, adjusting lock nuts, and fixing studs, so as to realize the limit locking function. However, there are problems such as complex structure and high installation requirements

Method used

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  • Angular travel transmission device for automatic forward-reverse gear hanging
  • Angular travel transmission device for automatic forward-reverse gear hanging
  • Angular travel transmission device for automatic forward-reverse gear hanging

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Embodiment Construction

[0018] In order to clearly illustrate the technical characteristics of this patent, the following describes this patent in detail through specific implementation methods and in conjunction with the accompanying drawings.

[0019] The present invention as Figure 1-2 As shown, it includes a box body 1, an input shaft 2, a driving gear, an output shaft 3 and a sector gear 4. The input shaft 2 and the output shaft 3 are parallel and both are connected to the box body 1 through bearings. The gear is fixedly connected to the part where the input shaft 2 extends into the box body 1 through a synchronous rotation mechanism such as a square key and a spline, and the sector gear 4 is fixedly connected to the output shaft 3 extending into the box through a synchronous rotation mechanism such as a square key and a spline. The part inside the body 1, the driving gear and the sector gear 4 are meshed when the quarter-stroke valve is actuated.

[0020] In actual use, fixed connection or ot...

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Abstract

The invention relates to an angular travel transmission device for automatic forward-reverse gear hanging and relates to an angular travel transmission device. In order to solve the problems, the angular travel transmission device for automatic forward-reverse gear hanging is ingenious in structure, good in stability and high in reliability, has a good limit effect, can be applied to electric andmanual valve actuators and other devices, and can achieve a good limit locking function on the basis of guaranteeing the transmission effect. The device comprises a box, an input shaft, a drive gear,an output shaft and a sector-shaped gear. The input shaft and the output shaft are connected with the box, the drive gear is fixedly connected to the portion, extending into the box, of the input shaft, the sector-shaped gear is fixedly connected to the portion, extending into the box, of the output shaft, and the drive gear is meshed with the sector-shaped gear when an angular travel valve acts.The overall angular travel transmission device has the advantages of being ingenious in structure, good in stability, high in reliability, capable of achieving a good limit effect and keeping high limit precision for a long time and the like.

Description

technical field [0001] The invention relates to an angular stroke transmission device, in particular to an angular stroke transmission device used for electric and manual valve actuators and other equipment. Background technique [0002] The electric valve is an automatic control device that uses electric energy as the power and drives the valve through an electric actuator. The actuator is an important part of the automatic control system. [0003] For quarter-turn valves, which are part-turn valves, the setting and execution of the angle are very important. In order to ensure that the valve can be opened and closed in place, in the past, limit devices such as travel switches were used to realize it. However, in actual working conditions, due to the installation deformation of the parts and the connection gap, etc., it is easy to cause the angular displacement of the operating end and the valve stem end to be out of sync. In order to solve the problem of out-of-synchroni...

Claims

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Application Information

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IPC IPC(8): F16K31/53F16K31/04F16K31/60
CPCF16K31/04F16K31/53F16K31/60
Inventor 陈银龙叶文华陈苗苗
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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