CN221683492U

CN221683492U - Electric actuator

Info

Publication number: CN221683492U
Application number: CN202323239936.3U
Authority: CN
Inventors: 徐守万
Original assignee: Quanyi Suzhou Sensor Technology Co ltd
Current assignee: Quanyi Suzhou Sensor Technology Co ltd
Priority date: 2023-11-30
Filing date: 2023-11-30
Publication date: 2024-09-10
Anticipated expiration: 2033-11-30

Abstract

The utility model relates to an electric actuator, which comprises an upper shell and a lower shell, wherein a motor, a counting plate, a worm, a primary gear transmission assembly, a secondary gear transmission assembly and a tertiary gear transmission assembly are arranged in the lower shell, a driving part of the motor is connected with the worm, the worm is meshed with the primary gear transmission assembly, the primary gear transmission assembly is meshed with the secondary gear transmission assembly, the secondary gear transmission assembly is meshed with the tertiary gear transmission assembly, a rotating shaft of the motor is fixedly connected with the counting plate, the counting plate is provided with a magnetic surface, a Hall circuit board is arranged between the counting plate and the motor, the Hall circuit board is fixedly connected with the motor, and the Hall circuit board is used for sensing magnetic induction change on the counting plate to record the rotation number of the motor. The electric actuator is small in size and can effectively control the motion state of equipment.

Description

Electric actuator

Technical Field

The utility model relates to the field of automatic control, in particular to an electric actuator.

Background

The actuator is an indispensable component in an automatic control system, and can be divided into three types of pneumatic actuators, hydraulic actuators and electric actuators according to energy forms. The electric actuator is convenient to take energy, rapid in signal transmission and high in utilization rate. With the development of technology, there is an increasing demand for actuators, and electric actuators that are small in size and can effectively control the motion state are often required in devices, and in the prior art, electric actuators generally only meet one of the demands.

Disclosure of utility model

Based on this, an electric actuator is provided which is small in size and can effectively control the movement state of the device.

The utility model provides an electric actuator, including last casing and lower casing, be provided with the motor in the lower casing, the counter plate, the worm, one-level gear drive subassembly, two-stage gear drive subassembly and tertiary gear drive subassembly, the drive portion and the worm of motor are connected, worm and one-level gear drive subassembly meshing, one-level gear drive subassembly and two-stage gear drive subassembly meshing, two-stage gear drive subassembly and tertiary gear drive subassembly meshing, the rotation axis and the counter plate fixed connection of motor, the counter plate sets up to the magnetic surface, be provided with hall circuit board between counter plate and the motor, hall circuit board and motor fixed connection, the hall circuit board is used for the magnetic induction change record motor on the response counter plate the number of rotations.

Above-mentioned electric actuator' S motor rotation drives worm and counter plate rotation, and the worm drives one-level gear drive subassembly and rotates, and one-level gear drive subassembly drives two-level gear drive subassembly and rotate, and two-level gear drive subassembly drives three-level gear drive subassembly and rotate, and the counter plate sets up to the magnetic surface, and N utmost point and S utmost point are distributed in turn on the magnetic surface, and when the counter plate was rotatory, the hall circuit board was through the magnetic induction change on the induction counter plate to take notes the rotation number of turns of motor, and then the rotation number of turns of control three-level gear drive subassembly. The number of rotations of the motor can be recorded through the cooperation of the counting plate and the Hall circuit board, so that the number of rotations of the output end of the actuator can be conveniently controlled.

In one embodiment, a metal ball is arranged at one end of a worm of the electric actuator, a limiting block is arranged on one side of the worm, the limiting block is fixedly connected with the lower shell, and a groove for accommodating the metal ball is formed in the limiting block.

In one embodiment, a fixed block is arranged at one end, close to the counting plate, of the lower shell of the electric actuator, and a groove for accommodating a rotating shaft of the motor is formed in the fixed block.

In one embodiment, the primary gear transmission assembly of the electric actuator comprises a first gear, a second gear and a first guide post, wherein the first guide post is fixedly connected with the lower shell, the first gear and the second gear are respectively sleeved on the first guide post, the first gear is fixedly connected with the second gear, and the first gear is meshed with the worm.

In one embodiment, the first gear and the second gear of the electric actuator are made of plastic materials.

In one embodiment, the secondary gear transmission assembly of the electric actuator comprises a third gear, a fourth gear and a second guide post, the second guide post is fixedly connected with the lower shell, the third gear and the fourth gear are respectively sleeved on the second guide post, the third gear and the fourth gear are fixedly connected, and the fourth gear is meshed with the second gear.

In one embodiment, the three-stage gear transmission assembly of the electric actuator comprises a fifth gear, a sixth gear and a third guide post, one end of the third guide post is connected with the upper shell through a first metal shaft sleeve, the fifth gear is sleeved on the third guide post and fixedly connected with the fifth gear, and the other end of the third guide post is connected with the lower shell through a second metal shaft sleeve and penetrates through the lower shell to be fixedly connected with the sixth gear.

In one embodiment, racks are respectively arranged at the positions, close to the fifth gear and the sixth gear, of the third guide column of the electric actuator.

In one embodiment, the upper and lower housings of the electric actuator are connected by a plurality of screw assemblies.

In one embodiment, the counting plate of the electric actuator is disc-shaped.

The beneficial effects of the application are as follows:

The application improves an electric actuator, a motor of the electric actuator rotates to drive a worm and a counting plate to rotate, the worm drives a primary gear transmission assembly to rotate, the primary gear transmission assembly drives a secondary gear transmission assembly to rotate, the secondary gear transmission assembly drives a tertiary gear transmission assembly to rotate, the counting plate is arranged to be a magnetic surface, N poles and S poles on the magnetic surface are alternately distributed, and when the counting plate rotates, a Hall circuit board records the rotation number of the motor by sensing magnetic induction change on the counting plate, so that the rotation number of the tertiary gear transmission assembly is controlled. The number of rotations of the motor can be recorded through the cooperation of the counting plate and the Hall circuit board, so that the number of rotations of the output end of the actuator can be conveniently controlled.

The worm of the electric actuator is provided with the metal ball, so that the motor can be prevented from moving along the direction of the worm.

The primary gear transmission component of the electric actuator is made of plastic, so that the transmission efficiency and the service life of the gear component are improved.

Drawings

FIG. 1 is a schematic view of the interior of a lower housing of an electric actuator according to an embodiment of the present application;

FIG. 2 is a schematic illustration of a primary gear assembly, a secondary gear assembly, and a tertiary gear assembly of an electric actuator according to an embodiment of the present application;

FIG. 3 is a schematic view of the exterior of an electric actuator according to an embodiment of the present application;

FIG. 4 is a schematic view of a counter plate of an electric actuator according to an embodiment of the present application;

FIG. 5 is a schematic view of a third guide post of an electric actuator according to an embodiment of the present application;

wherein:

1. A lower housing; 2. a motor; 3. a counting plate; 4. a worm; 5. a primary gear drive assembly; 6. a secondary gear drive assembly; 7. a three stage gear drive assembly; 8. a metal ball; 9. a Hall circuit board; 10. a limiting block; 11. a fixed block; 12. a screw assembly; 13. an upper housing; 51. a first gear; 52. a second gear; 53. a first guide post; 61. a third gear; 62. a fourth gear; 63. a second guide post; 71. a fifth gear; 72. a sixth gear; 73. a third guide post; 74. a first metal shaft sleeve; 75. and a second metal shaft sleeve.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings.

As shown in fig. 1 and 3, an embodiment of the present application provides an electric actuator, including an upper housing 13 and a lower housing 1, wherein a motor 2, a counting plate 3, a worm 4, a primary gear transmission assembly 5, a secondary gear transmission assembly 6 and a tertiary gear transmission assembly 7 are disposed in the lower housing 1, a driving part of the motor 2 is connected with the worm 4, the worm 4 is meshed with the primary gear transmission assembly 5, the primary gear transmission assembly 5 is meshed with the secondary gear transmission assembly 6, the secondary gear transmission assembly 6 is meshed with the tertiary gear transmission assembly 7, a rotating shaft of the motor 2 is fixedly connected with the counting plate 3, the counting plate 3 is provided with a magnetic surface, a hall circuit board 9 is disposed between the counting plate 3 and the motor 2, the hall circuit board 9 is fixedly connected with the motor 2, and the hall circuit board 9 is used for sensing magnetic induction change on the counting plate 3 to record the number of rotations of the motor 2.

The electric actuator comprises an upper shell 13 and a lower shell 1, wherein a motor 2 is arranged in the lower shell 1, two ends of the motor 2 are fixedly connected with a worm 4 and a counting plate 3 respectively, the motor 2 drives the worm 4 and the counting plate 3 to rotate, the worm 4 drives a primary gear transmission assembly 5 to rotate, the primary gear transmission assembly 5 drives a secondary gear transmission assembly 6 to rotate, and a secondary gear 52 transmission assembly drives a tertiary gear transmission assembly 7 to rotate. The counting plate 3 is arranged to be a magnetic surface, N poles and S poles on the magnetic surface are alternately distributed, specific magnetic pole pairs can be arranged according to requirements, and when the counting plate 3 rotates, the Hall circuit board 9 arranged between the counting plate 3 and the motor 2 records the number of rotation turns of the motor 2 by sensing the magnetic induction change on the counting plate 3, so that the number of rotation turns on the three-stage gear transmission assembly 7 is obtained.

The electric actuator records the number of rotation turns of the motor 2 through the cooperation of the counting plate 3 and the Hall sensor on the Hall circuit board 9, thereby being convenient for controlling the number of rotation turns of the actuator.

The electric actuator tightly wraps all parts in the upper shell 13 and the lower shell 1 along the outer contour of the motor 2, the counting plate 3, the Hall circuit board 9, the primary gear transmission assembly 5, the secondary gear transmission assembly 6 and the tertiary gear transmission assembly 7, so that the whole volume of the actuator is smaller and the universality is stronger.

As shown in fig. 1, in one embodiment, a metal ball 8 is disposed at one end of a worm 4 of the electric actuator, a stopper 10 is disposed at one side of the worm 4, the stopper 10 is fixedly connected with the lower housing 1, and a groove for accommodating the metal ball 8 is disposed in the stopper 10. The motor 2 drives the worm 4 to rotate, and the worm 4 drives the metal ball 8 to do rotary motion on the limiting block 10. This arrangement prevents the motor 2 from moving with the worm 4.

As shown in fig. 1, in one embodiment, a fixed block 11 is disposed at one end of the lower housing 1 of the electric actuator, which is close to the counting plate 3, and a groove for accommodating the rotating shaft of the motor 2 is disposed on the fixed block 11. This arrangement facilitates accommodation of the rotating shaft for rotation within the recess.

As shown in fig. 2, in one embodiment, the primary gear transmission assembly 5 of the electric actuator includes a first gear 51, a second gear 52 and a first guide post 53, the first guide post 53 is fixedly connected with the lower housing 1, the first gear 51 and the second gear 52 are respectively sleeved on the first guide post 53, the first gear 51 is fixedly connected with the second gear 52, and the first gear 51 is meshed with the worm 4. The motor 2 drives the worm 4 to rotate, the worm 4 drives the first gear 51 to rotate, and the first gear 51 drives the second gear 52 to rotate. This arrangement facilitates rotation of the secondary gear assembly 6.

In one embodiment, as shown in fig. 2, the first gear 51 and the second gear 52 of the electric actuator are made of plastic. The gear made of plastic materials is used, so that the transmission efficiency and the service life of the primary gear transmission assembly 5 are effectively improved, and the stability of the actuator is improved.

As shown in fig. 2, in one embodiment, the secondary gear transmission assembly 6 of the electric actuator includes a third gear 61, a fourth gear 62 and a second guide post 63, the second guide post 63 is fixedly connected with the lower housing 1, the third gear 61 and the fourth gear 62 are respectively sleeved on the second guide post 63, the third gear 61 and the fourth gear 62 are fixedly connected, and the fourth gear 62 is meshed with the second gear 52. The rotation of the second gear 52 drives the rotation of the fourth gear 62, and the rotation of the fourth gear 62 drives the rotation of the third gear 61. This arrangement facilitates the rotation of the tertiary gear assembly 7.

As shown in fig. 2, in one embodiment, the three-stage gear transmission assembly 7 of the electric actuator includes a fifth gear 71, a sixth gear 72 and a third guide post 73, one end of the third guide post 73 is connected with the upper housing 13 through a first metal shaft sleeve 74, the fifth gear 71 is sleeved on the third guide post 73 and is fixedly connected with the fifth gear 71, and the other end of the third guide post 73 is connected with the lower housing 1 through a second metal shaft sleeve 75 and passes through the lower housing 1 to be fixedly connected with the sixth gear 72. The third gear 61 rotates to drive the fifth gear 71 to rotate, the fifth gear 71 drives the third guide post 73 to rotate on the upper shell and the lower shell, and the third guide post 73 drives the sixth gear 72 to rotate for rotation output. This arrangement facilitates rotational output by the actuator. The first metal shaft sleeve 74 and the second metal shaft sleeve 75 are made of metal, so that abrasion in the rotation process can be avoided.

As shown in fig. 5, in one embodiment, racks are respectively disposed on the portions of the third guide post 73 of the electric actuator, which are close to the fifth gear 71 and the sixth gear 72. This arrangement can increase the friction force between the third guide post 73 and the fifth gear 71 and the sixth gear, and facilitate the rotation fit.

As shown in fig. 1, in one embodiment, the upper housing 13 and the lower housing 1 of the electric actuator are connected by a plurality of screw assemblies 12. This arrangement can firmly fix the upper case 13 and the lower case 1 together.

As shown in fig. 4, in one embodiment, the counting plate 3 of the electric actuator is disc-shaped. This arrangement facilitates rotation of the counter plate 3 within the housing.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The utility model provides an electric actuator, a serial communication port, including last casing (13) and lower casing (1), be provided with motor (2) in lower casing (1), counter plate (3), worm (4), one-level gear drive subassembly (5), second grade gear drive subassembly (6) and tertiary gear drive subassembly (7), the drive division and the worm (4) of motor (2) are connected, worm (4) and one-level gear drive subassembly (5) meshing, one-level gear drive subassembly (5) and second grade gear drive subassembly (6) meshing, second grade gear drive subassembly (6) and tertiary gear drive subassembly (7) meshing, the rotation axis and the counter plate (3) fixed connection of motor (2), counter plate (3) set up to the magnetic surface, be provided with hall circuit board (9) between counter plate (3) and motor (2), hall circuit board (9) are used for the magnetic induction change record motor (2) the number of rotations on the induction counter plate (3).

2. The electric actuator according to claim 1, wherein one end of the worm (4) is provided with a metal ball (8), one side of the worm (4) is provided with a limiting block (10), the limiting block (10) is fixedly connected with the lower shell (1), and a groove for accommodating the metal ball (8) is formed in the limiting block (10).

3. The electric actuator according to claim 1, wherein a fixed block (11) is provided at one end of the lower housing (1) close to the counter plate (3), and a groove for accommodating a rotation shaft of the motor (2) is provided on the fixed block (11).

4. The electric actuator according to claim 1, wherein the primary gear transmission assembly (5) comprises a first gear (51), a second gear (52) and a first guide post (53), the first guide post (53) is fixedly connected with the lower housing (1), the first gear (51) and the second gear (52) are respectively sleeved on the first guide post (53), the first gear (51) is fixedly connected with the second gear (52), and the first gear (51) is meshed with the worm (4).

5. The electric actuator according to claim 4, wherein the first gear (51) and the second gear (52) are made of plastic material.

6. The electric actuator according to claim 1, wherein the secondary gear transmission assembly (6) comprises a third gear (61), a fourth gear (62) and a second guide post (63), the second guide post (63) is fixedly connected with the lower housing (1), the third gear (61) and the fourth gear (62) are respectively sleeved on the second guide post (63), the third gear (61) and the fourth gear (62) are fixedly connected, and the fourth gear (62) is meshed with the second gear (52).

7. The electric actuator according to claim 1, wherein the three-stage gear transmission assembly (7) comprises a fifth gear (71), a sixth gear (72) and a third guide post (73), one end of the third guide post (73) is connected with the upper shell (13) through a metal shaft sleeve (74), the fifth gear (71) is sleeved on the third guide post (73) and fixedly connected with the fifth gear (71), and the other end of the third guide post (73) is connected with the lower shell (1) through a second metal shaft sleeve (75) and fixedly connected with the sixth gear (72) through the lower shell (1).

8. The electric actuator according to claim 7, wherein the third guide post (73) is provided with racks at positions close to the fifth gear (71) and the sixth gear (72), respectively.

9. The electric actuator according to claim 1, characterized in that the upper housing (13) and the lower housing (1) are connected by means of several screw assemblies (12).

10. The electric actuator according to claim 1, wherein the counter plate (3) is disc-shaped.