CN219549736U

CN219549736U - Electric actuator

Info

Publication number: CN219549736U
Application number: CN202220924848.3U
Authority: CN
Inventors: 张星星
Original assignee: Taizhou Kaitao Valve Co ltd
Current assignee: Taizhou Kaitao Valve Co ltd
Priority date: 2021-08-10
Filing date: 2022-04-20
Publication date: 2023-08-18
Anticipated expiration: 2032-04-20
Also published as: CN113494639A; CN114791052A

Abstract

The utility model provides the technical field of electric actuators, and belongs to the technical field of electric actuators. The device solves the problem that the manual switching function is needed under the condition of power failure or a certain condition in the prior art. The electric actuator comprises an upper shell and a lower shell, wherein the upper shell and the lower shell are mutually locked to form the shell, a mounting plate is arranged in an actuator main body, a spindle gear is arranged at the lower end of the mounting plate, a supporting part is arranged above the spindle gear, three connecting pieces are arranged between the upper ends of the spindle gear, a barrier strip is arranged on each connecting piece, a motor is arranged in the shell, the motor is connected with a driving gear, a gear reduction device is arranged in the lower shell and is mutually connected with the driving gear, a handle is arranged outside the upper shell, the gear reduction device comprises a first duplex gear, a second duplex gear and an output duplex gear which are duplex gears, and a spring assembly is arranged at the lower end of the spindle gear. The utility model has the advantages of simple structure, reasonable design and manual and automatic integration.

Description

Electric actuator

Technical Field

The utility model belongs to the technical field of electric actuators, and particularly relates to an electric actuator.

Background

Actuators are an essential component of an automatic control system. The function of the device is to receive the control signal from the controller and change the size of the controlled medium, so as to maintain the controlled variable at the required value or within a certain range. Actuators are typically used with valves and are used to control fluid switches, but require the use of manual switching functions in the event of a power outage or under certain conditions.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides the manual-automatic integrated electric actuator which is simple in structure, reasonable in design and capable of rapidly realizing a manual-automatic switching function, and the manual-automatic integrated electric actuator can be rotated to realize the manual function only by pressing down the handle, so that the handle can be released to rebound to an automatic mode.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides an electric actuator, its characterized in that includes casing and lower casing, last casing and lower casing lock each other and constitute the casing, the executor main part in be provided with the mounting panel, the mounting panel lower extreme be provided with the spindle gear, the top of spindle gear be provided with the supporting part, the upper end interval of spindle gear is provided with three and supplies the connecting piece that the supporting part card was gone into, the connecting piece on install the blend stop, the casing in be provided with the motor, the motor be connected with the driving gear, lower casing in and with driving gear interconnect have the gear reduction unit that is driven by this motor, last casing be equipped with the handle that can manual rotation outward, gear reduction unit include the first duplex gear, second duplex gear and the output duplex gear that are duplex gears, the lower extreme of spindle gear be provided with the spring assembly that is used for supplying the spindle gear to support to lean on, when pressing the handle for the spindle gear moves down to with the output duplex gear, realize the manual function of product, after the automatic handle is released, and with the duplex gear, combine to the rebound mode.

In the above electric actuator, the supporting component comprises a middle barrel and a plurality of clamping parts which are arranged on the side edge of the middle barrel and correspond to the connecting parts, the fixing sleeve is provided with a plurality of grooves which are matched with the clamping parts, and each clamping part is convexly provided with a protruding part for fixing the supporting component and the spindle gear.

In the electric actuator, the large tooth surface of the first double-link gear is meshed with the driving gear, the small tooth surface of the first double-link gear is meshed with the large tooth surface of the second double-link gear, the small tooth surface of the second double-link gear is meshed with the large tooth surface of the output double-link gear, and the small tooth surface of the output double-link gear is meshed with the main shaft gear.

In the electric actuator, the upper shell and the lower shell are in clamping fit through the mounting plate.

In the electric actuator, the handle is provided with the indication groove, and the upper shell is provided with the flow indication plate relative to the lower end of the handle.

In the electric actuator, the peripheral wall at the bottom of the motor is extended outwards symmetrically to form a connecting piece, and the connecting piece is connected with the mounting plate through a fixing bolt.

Compared with the prior art, the electric actuator has the advantages of ingenious and reasonable structure, easy assembly and quite high adjustment precision, has two actuating mechanisms of automatic and manual operation, and is almost suitable for all process control.

Drawings

Fig. 1 is an exploded view of the present utility model.

Fig. 2 is a schematic cross-sectional view of the present utility model.

Fig. 3 is a schematic view of the structure of the support member in the present utility model.

Fig. 4 is a schematic structural view of the fixing sleeve in the present utility model.

In the figure, 1, an upper shell; 2. a lower housing; 3. a mounting plate; 4. a spindle gear; 5.

a motor; 6. a drive gear; 7. a support member; 8. a first double gear; 9. a second duplex gear; 10. an output duplex gear; 11. a handle 12 and a flow indicator; 13. a connecting piece; 14. a spring assembly; 15. a middle barrel part; 16. a fixed sleeve; 17. a groove; 18. a boss; 19. a clamping part; 20. and a barrier strip.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, an electric actuator comprises an upper housing 1 and a lower housing 2, the upper housing 1 and the lower housing 2 are mutually locked to form a housing, a mounting plate 3 is arranged in an actuator main body, a spindle gear 4 is arranged at the lower end of the mounting plate 3, a supporting part 7 is arranged above the spindle gear 4, three connecting pieces 13 for clamping the supporting part 7 are arranged at the upper end of the spindle gear 4, a stop strip 20 is arranged on the connecting pieces 13, a motor 5 is arranged in the housing, the motor 5 is connected with a driving gear 6, a gear reduction device driven by the motor 5 is arranged in the lower housing 2 and is mutually connected with the driving gear 6, a handle 11 capable of rotating manually is arranged outside the upper housing 1, the gear reduction device comprises a first duplex gear 8, a second duplex gear 9 and an output duplex gear 10 which are all duplex gears, the lower end of the spindle gear 4 is provided with a spring assembly 14 for supporting the spindle gear 4 to be clamped in, and the spring assembly is arranged at the lower end of the spindle gear 4 to be pushed down to be combined with the handle 11 in a rebound mode, and the rebound gear 10 is released from the spindle 4 when the rebound gear is automatically pushed down, and the rebound gear is combined with the handle 10. The automatic and manual executing mechanism is arranged in the actuator, the automatic and manual executing mechanism is almost suitable for all process control, the manual and automatic switching function can be realized quickly, the manual function can be realized by rotating only by pressing down the handle 11, the handle 11 can be released to rebound to an automatic mode, and the use requirement of a user in the use process is met.

In order to make the support member 7 better control the actuator, in the above electric actuator, the support member 7 is composed of a middle barrel 15 and a plurality of clamping parts 19 disposed at the side of the middle barrel 15 and corresponding to the connectors 13, the fixing sleeve 16 is provided with a plurality of grooves 17 engaged with the clamping parts 19, and each clamping part 19 is provided with a protruding part 18 for fixing the support member 7 and the spindle gear 4. The fixing sleeve 16 is arranged outside the connecting piece 13, the handle 11 is pressed, the clamping part 19 is clamped with the lower end of the blocking strip 20 in the connecting piece 13, the spindle gear 4 is fixed and separated from the duplex gear, the actuator is in a manual function, when the handle 11 is released, the spindle gear 4 is rebounded through the spring assembly 14 and combined with the duplex gear, and the actuator is in an automatic mode.

Further, the large tooth surface of the first double-link gear 8 is meshed with the driving gear 6, the small tooth surface of the first double-link gear 8 is meshed with the large tooth surface of the second double-link gear 9, the small tooth surface of the second double-link gear 9 is meshed with the large tooth surface of the output double-link gear 10, and the small tooth surface of the output double-link gear 10 is meshed with the main shaft gear 4.

Further, the upper casing 1 and the lower casing 2 are in clamping fit through the mounting plate 3.

Preferably, the handle 11 is provided with an indication groove 17, and the upper housing 1 is provided with a flow indication plate 12 opposite to the lower end of the handle 11. The flow indicator 12 and the indication groove 17 can accurately display the flow controlled by the actuator.

Preferably, the peripheral wall at the bottom of the motor 5 is symmetrically extended with a connecting piece 13 outwards, and the connecting piece 13 is connected with the mounting plate 3 through a fixing bolt.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. The electric actuator is characterized by comprising an upper shell (1) and a lower shell (2), wherein the upper shell (1) and the lower shell (2) are mutually locked to form a shell, a mounting plate (3) is arranged in a main body of the actuator, a main shaft gear (4) is arranged at the lower end of the mounting plate (3), a supporting part (7) is arranged above the main shaft gear (4), three connecting pieces (13) for clamping the supporting part (7) are arranged at the upper end of the main shaft gear (4), a blocking strip (20) is arranged on the connecting pieces (13), a motor (5) is arranged in the shell, a driving gear (6) is connected to the motor (5), a gear reduction device driven by the motor (5) is arranged in the lower shell (2), a handle (11) capable of manually rotating is arranged outside the upper shell (1), the gear reduction device comprises a first duplex gear (8), a second duplex gear (9) and a main shaft gear (10) which are all duplex gears, and a spring (14) is arranged at the outer side of the main shaft gear (4) and is used for pushing the main shaft (4) to be separated from the main shaft (4), the manual function of the product is realized, and when the handle (11) is released, the main shaft gear (4) rebounds and is combined with the output duplex gear (10) to return to the automatic mode.

2. An electric actuator according to claim 1, wherein the supporting member (7) comprises a central tube (15) and a plurality of clamping parts (19) arranged at the side of the central tube (15) and corresponding to the connecting parts (13), and each clamping part (19) is provided with a protruding part (18) for fixing the supporting member (7) and the spindle gear (4) in a protruding way.

3. An electric actuator according to claim 1, characterized in that the large tooth surface of the first double gear (8) is in engagement with the driving gear (6), the small tooth surface of the first double gear (8) is in engagement with the large tooth surface of the second double gear (9), the small tooth surface of the second double gear (9) is in engagement with the large tooth surface of the output double gear (10), and the small tooth surface of the output double gear (10) is in engagement with the main shaft gear (4).

4. An electric actuator according to claim 1, wherein the upper housing (1) and the lower housing (2) are snap-fitted by means of mounting plates (3).

5. An electric actuator according to claim 1, wherein the handle (11) is provided with an indication groove (17), and the upper housing (1) is provided with a flow indication plate (12) opposite to the lower end of the handle (11).

6. An electric actuator according to claim 1, characterized in that the peripheral wall of the bottom of the motor (5) is extended symmetrically outwards with a connecting piece (13), and the connecting piece (13) is connected with the mounting plate (3) through a fixing bolt.