CN212616642U

CN212616642U - Direct-drive valve actuator

Info

Publication number: CN212616642U
Application number: CN202021208458.3U
Authority: CN
Inventors: 周小刚
Original assignee: Jiangxi Jiangsen Electromechanical Equipment Co ltd
Current assignee: Jiangxi Jiangsen Electromechanical Equipment Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-02-26
Anticipated expiration: 2030-06-24

Abstract

The utility model provides a pair of direct-drive valve actuator, direct-drive valve actuator includes valve body, left gyration subassembly, gyration case, right gyration subassembly, and left gyration subassembly carries out accurate control to opening and shutting of valve under the circumstances that equipment has the power to provide, under outage or special circumstances, move left gyration subassembly left, keep away from the valve rod, impel right gyration subassembly left simultaneously for manual bevel gear meshing bevel gear, then can control opening and shutting of valve through manual carousel, reach the purpose that the executor still can control flap under the special circumstances.

Description

Direct-drive valve actuator

Technical Field

The utility model belongs to the technical field of valve actuator and specifically relates to a direct-drive valve actuator

Background

The regulating valve is widely applied to industrial departments of petroleum, chemical industry, electric power, metallurgy, urban heat supply, light textile, building and the like. The operating conditions of the petroleum industry are high temperature or high pressure, the medium is flammable and explosive, and the problem of leakage needs to be solved by a regulating valve; in the chemical industry, high-performance regulating valves are required for controlling variables such as temperature, pressure, flow, liquid level and the like; the regulating valve in the power industry is mainly applied to boilers, steam turbines and auxiliary machines and has higher requirements on temperature and pressure; the metallurgical industry often needs a temperature difference self-operated regulating valve; constant pressure difference and constant flow regulating valves are used for urban heat supply. The existing butterfly valve direct-drive actuator is driven by electric power in function, and when power failure and other conditions occur, the opening and closing of the valve can not be controlled, so that the direct-drive valve actuator still can be used under the power failure condition is provided.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a direct drive type valve actuator, include:

the valve body is used for controlling the opening and closing of a valve in the pipeline so as to control the fluid circulation of the pipeline;

the left rotary component controls the valve to work under the condition of electrification;

the right rotating assembly controls the valve to work under the condition of power failure;

the rotating box realizes the change of the driving mode of the actuator under the conditions of power-on and power-off.

Preferably, the valve body comprises a valve disc, the top end of the valve disc is fixedly connected with a valve rod, the upper end of the valve rod is rotatably connected with a sealing gasket, and the top end of the valve rod is provided with a bevel gear.

Preferably, the bevel gear comprises a bevel gear end part, the bevel gear end part is circular, a rack and a bevel gear side end are arranged on the periphery of the bevel gear end part, the rack and the bevel gear side end are distributed in a cross manner, and baffles are arranged at two ends of the rack.

Preferably, the left rotary assembly comprises a supporting seat, a motor is connected to the upper surface of the supporting seat in a sliding mode, a motor rotating shaft is arranged on the right side of the motor, a rotating shaft gear is arranged at the tail end of the motor rotating shaft, and the rotating shaft gear is a bevel gear.

Preferably, the upper surface of the support seat is provided with a support slide rail, a T-shaped slide block is fixedly connected below the motor, and the support slide rail and the T-shaped slide block slide in a matching manner.

Preferably, the right rotating assembly comprises a manual rotating disc, a rotating shaft is fixedly connected to the left side of the manual rotating disc, the rotating shaft is connected to the rotating shaft in a protruding mode, a manual bevel gear is arranged at the tail end of the rotating shaft, and the manual bevel gear is a bevel gear.

Preferably, the rotary box comprises a rotary shell, a rotary cavity is arranged in the rotary shell, a limiting ring is arranged on the right side of the rotary shell, and the limiting ring is fixed on two sides of the rotary shell through fastening bolts.

Preferably, the limiting ring is internally provided with a through hole, the through hole is provided with a limiting groove, and the rotating shaft are convexly matched with the through hole and the limiting groove to realize sliding.

Compared with the prior art, the utility model provides a pair of directly drive formula valve actuator's beneficial effect is:

1. through set up left gyration subassembly in the valve body left side for the valve rod can be rotatory along with motor shaft's rotation together, and rotation through the valve rod drives the rotation of valve disc, thereby realizes the valve switching, thereby makes the valve rod drive the valve disc rotation along with manual carousel's rotation through setting up right gyration subassembly in the right side, thereby realizes the valve switching.

2. Through setting up the gyration case for left side gyration subassembly and right gyration subassembly can the steady rotation, make the pivot of manual carousel stable when business turn over gyration casing through the spacing ring, thereby can not get into easily after extracting and turn round the rotation that the chamber influenced bevel gear.

3. Through setting up the support slide rail for the motor is stationary after removing can be stable, can not remove easily and influence the rotation of bevel gear.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, serve to explain the invention and not to limit the invention.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the actuator of the present invention;

fig. 3 is a schematic view of the connection of the motor of the present invention;

FIG. 4 is a schematic view of the connection of the stop collar of the present invention;

fig. 5 is a plan view of the bevel gear of the present invention.

Reference numbers in the figures: 1. a valve body; 11. a valve disc; 12. a valve stem; 13. a sealing gasket; 14. a bevel gear; 141. a bevel gear end; 142. a rack; 143. a bevel gear side end; 2. a left swivel assembly; 21. a supporting seat; 211. a support slide rail; 22. a motor; 221. a T-shaped slider; 23. a motor shaft; 24. a spindle gear; 3. a rotation box; 31. a swivel housing; 32. fastening a bolt; 33. a limiting ring; 34. a limiting groove; 35. a rotation chamber; 4. a right swivel assembly; 41. a manual turntable; 42. a rotating shaft; 43. the rotating shaft is protruded; 44. a manual bevel gear.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

A direct drive valve actuator comprising:

the valve body 1 is used for controlling the opening and closing of a valve in a pipeline so as to control the fluid circulation of the pipeline;

the left rotary component 2 controls the valve to work under the power-on condition;

the right rotating assembly 4 controls the valve to work under the condition of power failure;

and the rotating box 3 realizes the change of the driving mode of the actuator under the conditions of power-on and power-off.

Specifically, the valve body 1 comprises a valve disc 11, the top end of the valve disc 11 is fixedly connected with a valve rod 12, the upper end of the valve rod 12 is rotatably connected with a sealing gasket 13, and the top end of the valve rod 12 is provided with a bevel gear 14.

Specifically, the bevel gear 14 includes a bevel gear end 141, the bevel gear end 141 is circular, a rack 142 and a bevel gear side 143 are disposed around the bevel gear end 141, the rack 142 and the bevel gear side 143 are distributed in a cross shape, and baffles are disposed at two ends of the rack 142.

Specifically, left side gyration subassembly 2 includes supporting seat 21, supporting seat 21 upper surface sliding connection has motor 22, motor 22 right side is equipped with motor shaft 23, motor shaft 23 end is equipped with pivot gear 24, pivot gear 24 is bevel gear.

Specifically, the upper surface of the support base 21 is provided with a support slide rail 211, a T-shaped slide block 221 is fixedly connected below the motor 22, and the support slide rail 211 and the T-shaped slide block 221 slide in a matching manner.

Specifically, right side gyration subassembly 4 includes manual carousel 41, manual carousel 41 left side fixedly connected with pivot 42, fixedly connected with pivot arch 43 on the pivot 42, the pivot 42 end is equipped with manual bevel gear 44, manual bevel gear 44 is bevel gear.

Specifically, the rotating box 3 comprises a rotating shell 31, a rotating cavity 35 is arranged in the rotating shell 31, a limiting ring 33 is arranged on the right side of the rotating shell 31, and the limiting ring 33 is fixed on the right side of the rotating shell 31 through a fastening bolt 32.

Specifically, a through hole is formed in the limiting ring 33, a limiting groove 34 is formed in the through hole, and the rotating shaft 42 and the rotating shaft protrusion 43 are matched with the through hole to slide with the limiting groove 34.

Example 1

Under the power-on condition, the rotating shaft gear 24 on the left side of the motor rotating shaft 23 is meshed on the surface of the bevel gear 14, when the motor 22 rotates, the motor rotating shaft 23 drives the rotating shaft gear 24 to rotate so as to drive the bevel gear 14 to rotate, thereby driving the valve disc 11 to rotate, so that the valve is opened, after the valve is completely opened, the rotating shaft gear 24 touches the baffle at the end part of the rack 142, the motor 22 is provided with a sensing device, when the motor 22 touches the baffle at the end part of the rack 142, at the moment, the motor 22 is completely opened, when the valve is required to be closed, the motor rotating shaft 23 drives the rotating shaft gear 24 to rotate so as to drive the bevel gear 14 to rotate, thereby driving the valve disc 11 to rotate, so that the valve is closed, after the valve is completely closed, the rotating shaft gear 24 touches the baffle at the end part of the rack 142, the, the valve is now fully closed.

Example 2

Under the condition of power failure, the motor 22 is moved leftwards, the motor 22 moves on the support slide rail 211 until the rotating shaft gear 24 is completely separated from the bevel gear 14, and the T-shaped sliding block 221 and the support slide rail 211 have certain tightness, so that the motor 22 cannot slide under the condition of no stress after being far away, meanwhile, the rotating shaft protrusion 43 is aligned with the limiting groove 34, the right rotary component 4 is pushed leftwards after being aligned, the manual bevel gear 44 is meshed with the bevel gear 14, the manual rotary disc 41 is rotated at the moment, the opening and closing of the valve disc 11 can be controlled, the opening and closing of the valve are further controlled, and due to the fact that the baffle is arranged at the end of the rack 142, the valve is completely opened or closed when large resistance is met.

It will be apparent to those skilled in the art that changes and modifications may be made to the present invention without departing from the spirit and scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A direct drive valve actuator, comprising:

valve body (1), left side gyration subassembly (2), gyration case (3), right side gyration subassembly (4) include manual carousel (41), manual carousel (41) left side fixedly connected with pivot (42), fixedly connected with pivot arch (43) on pivot (42), pivot (42) end is equipped with manual bevel gear (44).

2. The direct-drive valve actuator according to claim 1, wherein the valve body (1) comprises a valve disc (11), a valve rod (12) is fixedly connected to the top end of the valve disc (11), a sealing washer (13) is rotatably connected to the upper end of the valve rod (12), and a bevel gear (14) is arranged at the top end of the valve rod (12).

3. The direct-drive valve actuator according to claim 2, wherein the bevel gear (14) comprises a bevel gear end (141), the bevel gear end (141) is circular, a rack (142) and a bevel gear side end (143) are arranged around the bevel gear end (141), the rack (142) and the bevel gear side end (143) are distributed in a cross shape, and baffles are arranged at two ends of the rack (142).

4. The direct-drive valve actuator according to claim 1, wherein the left rotating assembly (2) comprises a support base (21), a motor (22) is slidably connected to an upper surface of the support base (21), a motor rotating shaft (23) is arranged on the right side of the motor (22), a rotating shaft gear (24) is arranged at the end of the motor rotating shaft (23), and the rotating shaft gear (24) is a bevel gear.

5. The direct-drive valve actuator according to claim 4, wherein a support slide rail (211) is disposed on an upper surface of the support base (21), a T-shaped slide block (221) is fixedly connected below the motor (22), and the support slide rail (211) and the T-shaped slide block (221) are in sliding fit.

6. The direct-drive valve actuator according to claim 1, wherein the rotary box (3) comprises a rotary housing (31), a rotary cavity (35) is arranged in the rotary housing (31), a limit ring (33) is arranged on the right side of the rotary housing (31), and the limit ring (33) is fixed on the right side of the rotary housing (31) through a fastening bolt (32).

7. The direct-drive valve actuator according to claim 6, wherein a through hole is formed in the limiting ring (33), a limiting groove (34) is formed in the through hole, and the rotating shaft (42) and the rotating shaft protrusion (43) are matched with the through hole and the limiting groove (34) to realize sliding.