CN209943655U

CN209943655U - Angular travel valve actuator

Info

Publication number: CN209943655U
Application number: CN201920444423.0U
Authority: CN
Inventors: 王张勇
Original assignee: SHANGHAI NUWAVE INDUSTRIAL EQUIPMENT Co Ltd
Current assignee: SHANGHAI NUWAVE INDUSTRIAL EQUIPMENT Co Ltd
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2020-01-14
Anticipated expiration: 2029-04-02

Abstract

The utility model provides an angular travel valve executor, it includes: cylinder barrel, piston, spiral groove cylinder, vertical groove cylinder, axis of rotation. The piston is located in the cylinder. One end of the spiral groove cylinder is fixed on the cylinder barrel along the axial direction, and the outer wall of the spiral groove cylinder is provided with a plurality of through spiral grooves with consistent spiral direction and same lead. The other end of the spiral groove cylinder is sleeved on the vertical groove cylinder in a sliding manner along the axial direction, one end, far away from the spiral groove cylinder, of the vertical groove cylinder is fixed at the end part of the cylinder barrel, a vertical groove parallel to the axial direction is formed in the outer wall of the vertical groove cylinder, a guide block is arranged on the inner wall of the spiral groove cylinder, and the guide block is matched with the vertical groove. The axis of rotation is located spiral groove jar and perpendicular groove jar and rotationally connects in the cylinder, and the one end that lies in the spiral groove jar in the axis of rotation is equipped with many and outwards extends the atress pole along the axial of perpendicular to axis of rotation, and the atress pole corresponds with the helicla flute one-to-one, and each atress pole is located a helicla flute. The device has high transmission efficiency and simple structure.

Description

Angular travel valve actuator

Technical Field

The utility model relates to an angular travel valve executor.

Background

The 90-degree travel valves such as ball valves and butterfly valves are frequently used in the fields of pipeline ventilation, sewage treatment and the like. Typically, an angular travel valve needs to be opened or closed by an electric actuator. However, most of the existing angular travel valve actuators adopt a spiral gear mechanism, so that the transmission efficiency is low, the structure is complex, and the occupied space is large.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a high-efficient transmission, simple structure's angle stroke valve executor in order to overcome prior art angle stroke valve executor defect that transmission efficiency is low, the structure is complicated.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

an angular travel valve actuator, comprising:

a cylinder barrel;

a piston located within the cylinder;

one end of the spiral groove cylinder is fixed on the piston along the axial direction, and the outer wall of the spiral groove cylinder is provided with a plurality of through spiral grooves with consistent rotation directions and the same lead;

the other end of the spiral groove cylinder is sleeved on the vertical groove cylinder in an axially slidable manner, one end, far away from the spiral groove cylinder, of the vertical groove cylinder is fixed at the end part of the cylinder barrel, a vertical groove parallel to the axial direction is formed in the outer wall of the vertical groove cylinder, a guide block is arranged on the inner wall of the spiral groove cylinder, and the guide block is matched with the vertical groove;

the rotating shaft is positioned in the spiral groove cylinder and the vertical groove cylinder and is rotatably connected with the cylinder barrel, one end of the rotating shaft, positioned in the spiral groove cylinder, is provided with a plurality of stress rods which extend outwards along the axial direction perpendicular to the rotating shaft, the stress rods correspond to the spiral grooves one by one, and each stress rod is positioned in one spiral groove.

Preferably, the actuator of the angular travel valve further comprises a plurality of bearings, the bearings correspond to the force-bearing rods one by one, and each bearing is sleeved on one force-bearing rod and is located in the spiral groove.

Preferably, the angular travel valve actuator further includes a spring, the spring is sleeved outside the spiral groove cylinder and the vertical groove cylinder, and both ends of the spring are respectively pressed against the ends of the piston and the cylinder barrel.

Preferably, the angular travel valve actuator further comprises an upper stop bolt for controlling the piston to move towards the direction away from the vertical slot cylinder, and the upper stop bolt is located in the cylinder barrel and is in threaded connection with one end of the cylinder barrel away from the vertical slot cylinder.

Preferably, the angular travel valve actuator further comprises a lower stop bolt for controlling the stroke of the piston moving toward the direction close to the vertical slot cylinder, and the lower stop bolt is screwed to the side of the piston facing the vertical slot cylinder.

Preferably, the actuator of the angular travel valve further comprises an air source device, wherein an air vent is formed in one end, far away from the vertical groove cylinder, of the cylinder barrel, and the air source device is communicated with the air vent through an air pipe.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in: the spiral groove on the spiral groove cylinder is matched with the stress rod on the rotating shaft, so that the linear motion of the piston in the cylinder barrel can be converted into the rotating motion of the rotating shaft, the rotating shaft is driven to rotate, and the external angular travel valve is opened or closed. The device has high transmission efficiency and simple structure.

Drawings

Fig. 1 is a partial cross-sectional view of an angular travel valve actuator according to a preferred embodiment of the present invention.

Fig. 2 is a schematic view of the internal structure of an angular travel valve actuator according to a preferred embodiment of the present invention.

Description of reference numerals:

cylinder barrel 100

Vent 110

Piston 200

Spiral groove cylinder 300

Helical groove 310

Guide block 320

Vertical groove 400

Vertical slot 410

Rotating shaft 500

Stress rod 510

Bearing 520

Spring 600

Upper stopper bolt 700

Lower stop bolt 800

Gas source device 900

Air pipe 910

Detailed Description

The present invention will be more clearly and completely described below with reference to the accompanying drawings.

An angular travel valve actuator, comprising: cylinder barrel 100, piston 200, spiral groove cylinder 300, vertical groove cylinder 400, and rotation shaft 500. The piston 200 is located within the cylinder 100. One end of the spiral groove cylinder 300 is fixed to the piston 200 in the axial direction, and a plurality of through spiral grooves 310 having the same spiral direction and the same lead are formed on the outer wall of the spiral groove cylinder 300. The other end of the spiral groove cylinder 300 is slidably sleeved on the vertical groove cylinder 400 along the axial direction, one end of the vertical groove cylinder 400 far away from the spiral groove cylinder 300 is fixed at the end part of the cylinder barrel 100, the outer wall of the vertical groove cylinder 400 is provided with a vertical groove 410 parallel to the axial direction, the inner wall of the spiral groove cylinder 300 is provided with a guide block 320, and the guide block 320 is matched with the vertical groove 410. The rotation shaft 500 is disposed in the spiral groove cylinder 300 and the vertical groove cylinder 400 and rotatably connected to the cylinder tube 100, and one end of the rotation shaft 500 disposed in the spiral groove cylinder 300 is provided with a plurality of force-receiving rods 510 extending outward in an axial direction perpendicular to the rotation shaft 500, the force-receiving rods 510 correspond to the spiral grooves 310 one by one, and each force-receiving rod 510 is disposed in one of the spiral grooves 310.

In this embodiment, when the piston 200 performs a linear motion, the piston 200 pushes the spiral groove cylinder 300 to move synchronously. Each force-receiving rod 510 located in the spiral groove 310 receives a tangential rotational force and an axial force opposite to the moving direction of the spiral groove cylinder 300 during the movement of the spiral groove cylinder 300, and is rotated only by the tangential rotational force since the axial movement of the rotational shaft 500 is restricted. When the piston 200 moves from the upper end to the lower end, the rotation shaft 500 is rotated counterclockwise (in a plan view) by the force receiving rod 510. The rotation angle of the rotation shaft 500 is mainly determined by the lead of the spiral groove 310 and the moving distance of the spiral groove cylinder 300. In addition, in order to prevent the spiral groove cylinder 300 from rotating under the reverse acting force, the guide block 320 of the spiral groove cylinder 300 is matched with the vertical groove 410 on the vertical groove cylinder 400 in the scheme, so that the spiral groove cylinder 300 can only move along the extending direction of the vertical groove 410.

In order to reduce the friction force between the force-bearing rod 510 and the spiral groove 310, improve the smoothness of the movement of the force-bearing rod 510, and avoid the problem of the locking between the force-bearing rod 510 and the spiral groove 310, the angular travel valve actuator further comprises a plurality of bearings 520, the bearings 520 correspond to the force-bearing rods 510 one by one, and each bearing 520 is sleeved on one force-bearing rod 510 and is positioned in the spiral groove 310.

In addition, in this embodiment, the actuator of the angular travel valve further includes a spring 600, the spring 600 is sleeved outside the spiral groove cylinder 300 and the vertical groove cylinder 400, and both ends of the spring 600 are respectively pressed against the ends of the piston 200 and the cylinder 100. The spring 600 can be used for enabling the piston 200 to automatically return to the initial position under the condition of not being acted by air pressure, so that the energy consumption can be saved, and the stability of the initial state of the piston 200 can be ensured. That is, if the external angular travel valve is in an open state when the piston 200 is located at the initial position, the angular travel valve can be always kept in an open state under the action of the spring 600 without being subjected to the pressure of the external air source, thereby avoiding the problem that the open state of the angular travel valve is unstable. In addition, when the external angular travel valve needs to be switched from the closed state to the open state, only the external air source pressure needs to be released, and the piston 200 is not required to be pushed back to the initial position by providing reverse pressure, so that the energy consumption of the device is saved.

In this embodiment, the actuator of the angular travel valve further includes an upper stop bolt 700 for controlling the movement stroke of the piston 200 in the direction away from the vertical slot cylinder 400 and a lower stop bolt 800 for controlling the movement stroke of the piston 200 in the direction close to the vertical slot cylinder 400, the upper stop bolt 700 is located in the cylinder barrel 100 and is screwed to one end of the cylinder barrel 100 away from the vertical slot cylinder 400, and the lower stop bolt 800 is screwed to one side of the piston 200 facing the vertical slot cylinder 400.

The upper stopper bolt 700 is mainly used to control the limit position of the upward movement of the piston 200, and the lower stopper bolt 800 is mainly used to control the limit position of the downward movement of the piston 200, thereby indirectly controlling the rotation angle of the rotary shaft 500, that is, the opening degree of the external angular travel valve, by controlling the movement distance of the piston 200. In this embodiment, the upper stop bolt 700 and the lower stop bolt 800 both adopt a threaded connection structure, and therefore, the length of the bolt extending out, that is, the moving distance of the piston 200 can be adjusted by rotating the adjusting bolt through threads, so that the angular travel valve actuator can be applied to angular travel valves with different rotation angle requirements.

In addition, the actuator of the angular travel valve further comprises an air supply device 900, wherein the end of the cylinder barrel 100 far away from the vertical groove cylinder 400 is provided with an air vent 110, and the air supply device 900 is communicated with the air vent 110 through an air pipe 910. The air supply device 900 is mainly used to provide air pressure to the cylinder 100 to drive the piston 200 to move, i.e., to drive the rotation shaft 500 to rotate.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. An angular travel valve actuator, comprising:

a cylinder barrel;

a piston located within the cylinder;

2. The angular travel valve actuator of claim 1, further comprising a plurality of bearings, one for each of said force-receiving rods, each of said bearings being received on one of said force-receiving rods and located within said helical groove.

3. The angular travel valve actuator of claim 1, further comprising a spring, the spring being fitted over the outside of the spiral groove cylinder and the vertical groove cylinder, both ends of the spring being pressed against the ends of the piston and the cylinder tube, respectively.

4. The angular travel valve actuator of claim 1, further comprising an upper stop bolt for controlling the travel of the piston in a direction away from the vertically slotted cylinder, the upper stop bolt being located within the cylinder barrel and threadedly attached to an end of the cylinder barrel remote from the vertically slotted cylinder.

5. The angular travel valve actuator of claim 1, further comprising a lower stop bolt for controlling the travel of the piston toward movement closer to the vertically slotted cylinder, the lower stop bolt being threaded into the piston on the side toward the vertically slotted cylinder.

6. The angular travel valve actuator of claim 1, further comprising an air supply device, wherein an air vent is provided in the end of the cylinder barrel remote from the vertically slotted cylinder, the air supply device being in communication with the air vent via an air tube.