CN218031680U - Stable electric actuator of transmission - Google Patents

Abstract

The utility model discloses a stable electric actuator of transmission, including executor shell, driving motor, first worm wheel and worm meshing constitute the linkage, executor shell lateral part is provided with the flaring that communicates with executor shell cavity, driving motor installs in the flaring and driving motor's motor shaft with worm one end linkage is connected, be provided with the output subassembly of being connected with first worm wheel in the executor shell cavity, the output subassembly is used for driving the valve rod to rotate, the right side of first worm wheel is provided with the speed reduction subassembly, the speed reduction subassembly includes reduction gear group, the right-hand member of first worm wheel is connected with reduction gear group, be provided with coupling assembling in the executor shell, the bottom meshing linkage of worm has the second worm wheel and the rotation of second worm wheel sets up in coupling assembling, coupling assembling fixed connection is in the executor shell, the both sides thickness of second worm wheel is less than the diameter of worm wheel; the utility model discloses compact structure, the rational utilization inner space improves transmission stability.

Description

Stable electric actuator of transmission

Technical Field

The utility model relates to an executor technical field especially relates to an electric actuator that transmission is stable.

Background

The electric actuator is a driving device providing linear or rotary motion, it utilizes some kind of driving energy and works under the action of some kind of control signal, the actuating mechanism utilizes liquid, gas, electric power or other energy sources to convert it into driving action by motor, cylinder or other devices, and the valve electric actuator is the machinery using electric energy as main source for driving valve.

The prior application patent CN217056527U discloses an electric actuator with a speed reduction function, which comprises an execution box body, a driving motor, a worm wheel and a worm, wherein the worm wheel and the worm are arranged in the execution box body and are matched with each other, a flared opening communicated with an inner cavity of the execution box body is arranged at the side part of the execution box body, the driving motor is arranged on the flared opening, and a motor shaft of the driving motor is connected with the worm; still include the speed reduction subassembly, the speed reduction subassembly includes speed reduction shaft and drive gear, be equipped with the linkage tooth on driving motor's the motor shaft, the speed reduction shaft rotates and sets up in the flaring, be equipped with first reduction gear and second reduction gear along the axial on the speed reduction shaft, first reduction gear meshes with the epaxial linkage tooth of motor mutually, second reduction gear meshes with drive gear mutually to the number of teeth of first reduction gear is greater than the number of teeth of linkage tooth, the number of teeth of second reduction gear is less than drive gear's the number of teeth.

The problems presented in the above patents: the speed reduction assembly is arranged in one side of the worm in the original actuator, the inner space is more abundant, the speed reduction structure is arranged in only one direction, the inner space is not fully utilized, the output rotating speed of the electric actuator cannot achieve a better controllable effect, and therefore an improved space exists.

Disclosure of Invention

The utility model aims at overcoming the defects existing in the prior art and providing an electric actuator with stable transmission.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a stable electric actuator of transmission, includes executor shell, driving motor, first worm wheel and worm are installed in the executor shell, first worm wheel and worm meshing constitute the linkage, executor shell lateral part is provided with the flaring with executor shell cavity intercommunication, driving motor install in the flaring and driving motor's motor shaft with the linkage of worm one end is connected, be provided with the output assembly who is connected with first worm wheel in the executor shell cavity, output assembly is used for driving the valve rod and rotates, the right side of first worm wheel is provided with speed reduction assembly, speed reduction assembly includes speed reduction gear group, the right-hand member and the speed reduction gear group of first worm wheel are connected, be provided with coupling assembling in the executor shell, the bottom meshing linkage of worm has second worm wheel and second worm wheel to rotate and set up in coupling assembling, coupling assembling fixed connection is in the executor shell, the both sides thickness of second worm wheel is less than the diameter of worm wheel.

As an optimized technical scheme of the utility model, first worm wheel is fan-shaped.

As a preferred technical scheme of the utility model, executor shell bottom is provided with the mounting hole that communicates with the executor inner chamber, output assembly sets up in the mounting hole, output assembly is including rotating piece, bearing and oil blanket, a rotation outer wall is located to bearing and oil blanket top-down cover in proper order, first worm wheel passes through bolted connection in a rotation top.

As a preferred technical scheme of the utility model, it forms the projection to rotate the piece and be close first worm wheel one end along axial direction extension, the cover is equipped with first transmission gear and solid fixed ring in proper order on the projection, one side of first transmission gear is provided with the second drive gear who constitutes the linkage rather than the meshing, second drive gear middle part through is provided with the fixed axle to through fixed axle fixed connection in executor shell cavity, second drive gear top is provided with the pointer, be provided with the scale mark on executor shell top is provided with visual window and the visual window.

As a preferred technical scheme of the utility model, reduction gear set includes first reduction gear, second transmission shaft, third reduction gear, fourth reduction gear, fifth reduction gear, sixth reduction gear and outer end cover, first reduction gear installs and just is located the outer tip of worm on the axial direction of worm, outer end cover is installed in executor shell lateral part, second transmission shaft and third transmission shaft rotate and set up in outer end cover terminal surface, second reduction gear and third reduction gear set up on the axial direction of second transmission shaft, second reduction gear constitutes the linkage with first reduction gear meshing, fourth reduction gear and fifth reduction gear set up on the axial direction of third transmission shaft, third reduction gear and fourth reduction gear meshing constitute the linkage, sixth reduction gear rotates and installs and cover and constitute the linkage with fifth reduction gear meshing in the outer end.

To sum up, the beneficial effects of the utility model are that: through set up reduction gear group and speed reduction subassembly respectively in two azimuths of worm, rational utilization executor shell inner space, inner structure is compact, improves the driven stability of electric actuator, and electric actuator's output rotational speed can reduce, and its torque increases simultaneously, and electric actuator rotational speed is controllable, is applicable to big specification valve and uses.

Drawings

FIG. 1 is a perspective view of the present embodiment;

FIG. 2 is a perspective view of the present embodiment with the actuator housing removed;

FIG. 3 is a perspective view of the present embodiment with the actuator housing removed from another perspective;

FIG. 4 is a perspective view of an output member in the present embodiment;

FIG. 5 is a first perspective view of the reduction gear set and worm of the present embodiment in engagement;

fig. 6 is a second perspective view of the reduction gear set and the worm in the present embodiment.

Reference numerals: 1. an actuator housing; 2. a drive motor; 3. a first worm gear; 4. a worm; 5. a visible window; 6. an output component; 7. a reduction gear set; 8. a connecting assembly; 9. a second worm gear; 10. a rotating member; 11. a bearing; 12. oil sealing; 13. a convex column; 14. a first drive gear; 15. a fixing ring; 16. a second transmission gear; 17. a fixed shaft; 18. a pointer; 19. a first reduction gear; 20. a second reduction gear; 21. a second drive shaft; 22. a third drive shaft; 23. a third reduction gear; 24. a fourth reduction gear; 25. a fifth reduction gear; 26. a sixth reduction gear; 27. and an outer end cover.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the embodiment, those skilled in the art can obtain other embodiments without making creative efforts, and all of them belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1 to 6, an electric actuator with stable transmission includes an actuator housing 1, a driving motor 2, a first worm wheel 3 and a worm 4, the first worm wheel 3 and the worm 4 are installed in the actuator housing 1, the first worm wheel 3 and the worm 4 are engaged to form a linkage, a flared opening communicated with a cavity of the actuator housing 1 is arranged at a side portion of the actuator housing 1, the driving motor 2 is installed in the flared opening, a motor shaft of the driving motor 2 is linked with one end of the worm 4, an output assembly 6 connected with the first worm wheel 3 is arranged in the cavity of the actuator housing 1, the output assembly 6 is used for driving a valve rod to rotate (i.e. the valve rod is connected to the output assembly 6, not shown in the figure), a speed reducing assembly is arranged at a right side of the first worm wheel 3, the speed reduction unit includes reduction gear 7, the right-hand member of first worm wheel 3 is connected with reduction gear 7, be provided with coupling assembling 8 in the executor shell 1, the bottom meshing linkage of worm 4 has second worm wheel 9 and second worm wheel 9 to rotate and sets up in coupling assembling 8, coupling assembling 8 fixed connection is in executor shell 1, the both sides thickness of second worm wheel 9 is less than the diameter of worm 4, first worm wheel 3 is fan-shaped and the lateral wall of first worm wheel 3 constitutes the linkage with the meshing of worm 4 in this embodiment, coupling assembling 8 structure can be that one or more parts constitute, only be used for providing second worm wheel 9 mounted position, second worm wheel 9 rotates to be connected in coupling assembling 8, worm 4 in this embodiment is for selling.

Through set up reduction gear 7 and speed reduction subassembly respectively in two azimuths of worm 4, the internal space of rational utilization executor shell 1, inner structure is compact, improves the driven stability of electric actuator, and electric actuator's output rotational speed can reduce, and its torque increases simultaneously, and electric actuator rotational speed is controllable, is applicable to big specification valve and uses.

The bottom of the actuator shell 1 is provided with a mounting hole communicated with an inner cavity of the actuator, the output assembly 6 is arranged in the mounting hole, the output assembly 6 comprises a rotating part 10, a bearing 11 and an oil seal 12, the bearing 11 and the oil seal 12 are sequentially sleeved on the outer wall of the rotating part 10 from top to bottom, the first worm wheel 3 is connected to the top of the rotating part 10 through a bolt, and the bottom of the rotating part 10 is connected with a valve rod in the embodiment.

Rotating member 10 is close 3 one ends of first worm wheel and extends along axial direction and form projection 13, the cover is equipped with first drive gear 14 and solid fixed ring 15 on the projection 13 in proper order, one side of first drive gear 14 is provided with the second drive gear 16 rather than the meshing constitution linkage, second drive gear 16 middle part is run through and is provided with fixed axle 17, and through fixed axle 17 fixed connection in executor shell 1 cavity, second drive gear 16 top is provided with pointer 18, executor shell 1 top is provided with visual window 5 and is provided with the scale mark on the visual window 5, visual window 5 adopts transparent glass material to make and be provided with the scale mark on the glass in this embodiment (not showing in the drawing), can observe the valve aperture through the scale mark like this.

The reduction gear set 7 includes a first reduction gear 19, a second reduction gear 20, a second transmission shaft 21, a third transmission shaft 22, a third reduction gear 23, a fourth reduction gear 24, a fifth reduction gear 25, a sixth reduction gear 26 and an outer end cover 27, the first reduction gear 19 is installed in the axial direction of the worm 4 and located at the outer end portion of the worm 4, the outer end cover 27 is installed at the side portion of the actuator housing 1, the second transmission shaft 21 and the third transmission shaft 22 are rotatably installed at the inner end face of the outer end cover 27, the second reduction gear 20 and the third reduction gear 23 are installed in the axial direction of the second transmission shaft 21, the second reduction gear 20 is meshed with the first reduction gear 19 to form a linkage, the fourth reduction gear 24 and the fifth reduction gear 25 are installed in the axial direction of the third transmission shaft 22, the third reduction gear 23 is meshed with the fourth reduction gear 24 to form a linkage, the sixth reduction gear 26 is rotatably installed on the outer end cover 27 and meshed with the fifth reduction gear 25 to form a linkage, specifically, the first reduction gear 19 drives the second reduction gear 20 and the sixth reduction gear 20, the sixth reduction gear 23 is sleeved on the second reduction gear 20, the sixth reduction gear 23 and the sixth reduction gear 23 is rotatably installed on the outer end cover 27, and the fifth reduction gear 23, the fourth reduction gear 26 is suitable for stably rotating speed reduction gear 23, and the electric actuator to rotate, and stably rotate, and the electric actuator 25, and the electric actuator is installed, and the electric actuator is installed.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications fall within the scope of the present invention, which is defined by the appended claims and their equivalents.

Claims (5)

1. The utility model provides a stable electric actuator of transmission, includes executor shell, driving motor, first worm wheel and worm are installed in the executor shell, first worm wheel and worm meshing constitute the linkage, executor shell lateral part is provided with the flaring with executor shell cavity intercommunication, driving motor install in the flaring and driving motor's motor shaft with worm one end linkage is connected its characterized in that: the utility model discloses a worm gear, including executor shell cavity, output assembly, speed reduction assembly, coupling assembling, second worm wheel and connecting assembly, be provided with the output assembly who is connected with first worm wheel in the executor shell cavity, output assembly is used for driving the valve rod and rotates, the right side of first worm wheel is provided with speed reduction assembly, speed reduction assembly includes reduction gear set, the right-hand member and the reduction gear set of first worm wheel are connected, be provided with coupling assembling in the executor shell, the bottom meshing linkage of worm has second worm wheel and second worm wheel to rotate and sets up in coupling assembling, coupling assembling fixed connection is in the executor shell, the both sides thickness of second worm wheel is less than the diameter of worm wheel.

2. The driveably stable electric actuator of claim 1, wherein: the first worm wheel is fan-shaped.

3. The driveably stable electric actuator of claim 1, wherein: the utility model discloses a hydraulic actuator, including executor shell, output assembly, bearing and oil seal, the executor shell bottom is provided with the mounting hole with the executor inner chamber intercommunication, output assembly sets up in the mounting hole, output assembly includes and rotates piece, bearing and oil seal, a rotation outer wall is located to bearing and oil seal top-down cover in proper order, first worm wheel passes through bolted connection in a rotation top.

4. The driveably stabilized electric actuator of claim 3 wherein: the rotation piece is close first worm wheel one end and extends along axial direction and form the projection, the cover is equipped with first transmission gear and solid fixed ring in proper order on the projection, one side of first transmission gear is provided with the second drive gear who constitutes the linkage rather than the meshing, second drive gear middle part is run through and is provided with the fixed axle to through fixed axle fixed connection in executor shell cavity, second drive gear top is provided with the pointer, executor shell top is provided with and is provided with the scale mark on visual window and the visual window.

5. The driveably stable electric actuator of claim 1, wherein: the reduction gear set comprises a first reduction gear, a second transmission shaft, a third reduction gear, a fourth reduction gear, a fifth reduction gear, a sixth reduction gear and an outer end cover, the first reduction gear is installed on the axial direction of the worm and located at the outer end portion of the worm, the outer end cover is installed on the side portion of the actuator shell, the second transmission shaft and the third transmission shaft are rotatably arranged on the end face of the outer end cover, the second reduction gear and the third reduction gear are arranged on the axial direction of the second transmission shaft, the second reduction gear is meshed with the first reduction gear to form linkage, the fourth reduction gear and the fifth reduction gear are arranged on the axial direction of the third transmission shaft, the third reduction gear is meshed with the fourth reduction gear to form linkage, and the sixth reduction gear is rotatably installed on the outer end cover and meshed with the fifth reduction gear to form linkage.

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