Rotor structure of electric actuator

Abstract

The utility model belongs to the technical field of electric actuators, particularly relates to a rotor structure of an electric actuator, and aims to solve the problems that an output shaft of a motor cannot be braked immediately and cannot work in power failure in the background technology, and adopts the scheme that the rotor structure comprises a shell, and a top cover is fixedly connected to the outer wall of the top of the shell through bolts; a cylinder is mounted on the top outer wall of the top cover. After the upper chuck is attached to the lower chuck, the lower chuck can be prevented from continuing to rotate, the quick braking function is achieved, the execution switch is prevented from generating certain position deviation, the final execution effect is prevented from being affected, when the servo motor cannot continue to work due to power failure, the manual grip can be rotated to control the output end gear to continue to rotate, and the operation is convenient. And the angle of the switch can be accurately grasped through the scales on the angle scale pointed by the pointer, and an electric and manual combined rotor structure is adopted, so that the use range is widened, and emergency work can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of electric actuators, in particular to a rotor structure of an electric actuator. Background Art

[0002] Electric actuator is a kind of mechatronic device, usually composed of motor, reducer, control system and actuator, etc. The actuator usually includes gear, worm gear, worm, lead screw, slider, etc., which are used to transmit power and change the output parameters such as position, speed and direction.

[0003] The electric actuator drives the rotor to rotate and controls the corresponding gears to perform the switch. However, the following problems exist in the operation of the electric actuator:

[0004] First, when the electric actuator completes the execution command, the output shaft of the motor will not brake immediately. The motor will still drive the gear to rotate a certain angle, which will control the execution switch to have a certain position offset, thus affecting the final execution effect.

[0005] In addition, electric actuators mainly rely on electricity to drive various components. Once a power outage occurs, the servo motor inside the electric actuator will stop working, resulting in subsequent control of the execution switch. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a rotor structure of an electric actuator, which overcomes the deficiencies of the prior art and effectively solves the problem that the output shaft of the motor cannot be braked immediately and cannot work in the event of a power outage.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A rotor structure of an electric actuator, comprising a housing, a top cover is fixedly connected to the top outer wall of the housing by bolts, a cylinder is installed on the top outer wall of the top cover, an upper chuck is fixedly connected to the cylinder piston rod, a reduction gear is rotatably connected to the inner wall of the housing, and a lower chuck is installed on the top outer wall of the reduction gear;

[0009] A docking gear is meshed on one side of the reduction gear, and an output end gear is meshed on the outer wall of the docking gear. A manual handle is fixedly connected to the top outer wall of the output end gear, and a pointer is installed on the outer wall of the manual handle. An angle plate is fixedly connected to the top outer wall of the top cover.

[0010] Preferably, the upper chuck and the lower chuck are meshed with each other.

[0011] Preferably, a motor compartment is provided on one side of the shell, and a servo motor is installed on the inner wall of the motor compartment.

[0012] Preferably, the servo motor output shaft is fixedly connected to the motor rotor, and the outer wall of the motor rotor is meshed with a helical gear, the top outer wall of the helical gear is fixedly connected to a drive end gear, and the drive end gear is meshed on the outer wall of the reduction gear.

[0013] Preferably, a worm is installed on the outer wall of the bottom of the output end gear, and a worm wheel is meshed on the outer wall of the worm, and an execution switch shaft is installed on the inner wall of the worm wheel.

[0014] Preferably, a gear bin is provided on the outer wall of the top of the shell, and the bevel gear, the reduction gear, the docking gear and the output end gear are all rotatably connected to the inner wall of the gear bin.

[0015] The beneficial effects of the utility model are:

[0016] 1. The rotor structure of the electric actuator of this design, when the electric actuator completes the execution command, the cylinder will drive the upper chuck to move downward. Since the upper chuck and the lower chuck are meshed with each other, when the upper chuck is attached to the lower chuck, it can prevent the lower chuck from continuing to rotate, which has the effect of rapid braking, preventing the execution switch from a certain position deviation, and avoiding affecting the final execution effect;

[0017] 2. The rotor structure of the electric actuator of this design has a manual handle installed on the output end gear. When the servo motor cannot continue to work due to a power outage, the manual handle can be turned to control the output end gear to continue rotating, thereby controlling the execution switch shaft to complete the execution operation, and the angle of the switch can be accurately grasped by pointing the pointer to the scale on the angle disk. It adopts a rotor structure that combines electric and manual, which increases the scope of use and can be used for emergency work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the rotor structure of an electric actuator proposed by the utility model;

[0019] Figure 2 A schematic diagram of a housing top cover separation structure of a rotor structure of an electric actuator proposed by the utility model;

[0020] Figure 3 A schematic diagram of the internal structure of a housing of a rotor structure of an electric actuator proposed in the utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure of an upper chuck and a lower chuck of a rotor structure of an electric actuator proposed by the utility model.

[0022] In the figure: 1. Shell; 2. Top cover; 3. Cylinder; 4. Upper chuck; 5. Reduction gear; 6. Lower chuck; 7. Motor compartment; 8. Manual grip; 9. Pointer; 10. Angle plate; 11. Servo motor; 12. Motor rotor; 13. Bevel gear; 14. Drive end gear; 15. Docking gear; 16. Output end gear; 17. Worm; 18. Worm wheel; 19. Actuator switch shaft; 20. Gear compartment. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Embodiment 1, refer to Figures 1 to 4 A rotor structure of an electric actuator comprises a housing 1, a top cover 2 is fixedly connected to the top outer wall of the housing 1 by bolts, a cylinder 3 is installed on the top outer wall of the top cover 2, an upper chuck 4 is fixedly connected to the piston rod of the cylinder 3, a reduction gear 5 is rotatably connected to the inner wall of the housing 1, and a lower chuck 6 is installed on the top outer wall of the reduction gear 5.

[0025] In this embodiment, when the electric actuator completes the execution command, the cylinder 3 will drive the upper chuck 4 to move downward. Since the upper chuck 4 and the lower chuck 6 are engaged with each other, when the upper chuck 4 is attached to the lower chuck 6, the lower chuck 6 can be prevented from continuing to rotate, which has the effect of rapid braking and prevents the execution switch from having a certain position deviation, thereby avoiding affecting the final execution effect.

[0026] Example 2, refer to Figures 1 to 2 , a rotor structure of an electric actuator, wherein a docking gear 15 is meshed on one side of the reduction gear 5, and an output end gear 16 is meshed on the outer wall of the docking gear 15, a manual handle 8 is fixedly connected to the top outer wall of the output end gear 16, and a pointer 9 is installed on the outer wall of the manual handle 8, and an angle disk 10 is fixedly connected to the top outer wall of the top cover 2.

[0027] In this embodiment, since a manual handle 8 is installed on the output end gear 16, when the servo motor 11 cannot continue to work due to a power outage, the manual handle 8 can be rotated to control the output end gear 16 to continue rotating, thereby controlling the execution switch shaft 19 to complete the execution operation, and the pointer 9 points to the scale on the angle disk 10 to accurately grasp the angle of the switch. A rotor structure that combines electric and manual is adopted, which increases the scope of use and can be used for emergency work.

[0028] Reference Figure 4 , the upper chuck 4 and the lower chuck 6 are engaged with each other.

[0029] Reference Figures 1 to 3A motor compartment 7 is provided on one side of the housing 1 , and a servo motor 11 is installed on the inner wall of the motor compartment 7 .

[0030] Reference Figure 3 The output shaft of the servo motor 11 is fixedly connected to a motor rotor 12 , and a helical gear 13 is meshed on the outer wall of the motor rotor 12 . A driving end gear 14 is fixedly connected to the outer wall of the top of the helical gear 13 , and the driving end gear 14 is meshed on the outer wall of the reduction gear 5 .

[0031] Reference Figures 1 to 3 A worm 17 is installed on the outer wall of the bottom of the output end gear 16, and a worm wheel 18 is meshed on the outer wall of the worm 17, and an execution switch shaft 19 is installed on the inner wall of the worm wheel 18.

[0032] Reference Figures 1 to 4 A gear bin 20 is provided on the top outer wall of the housing 1 , and the bevel gear 13 , the reduction gear 5 , the docking gear 15 and the output end gear 16 are all rotatably connected to the inner wall of the gear bin 20 .

[0033] Working principle: When the servo motor 11 is running, the motor rotor 12, the bevel gear 13, the drive end gear 14, the reduction gear 5, the docking gear 15, the output end gear 16, the worm 17 and the worm wheel 18 will rotate in sequence to complete the execution operation. When the electric actuator completes the execution command, the cylinder 3 will drive the upper chuck 4 to move downward. When the upper chuck 4 is attached to the lower chuck 6, it can prevent the lower chuck 6 from continuing to rotate and quickly brake. When the power outage causes the servo motor 11 to be unable to continue working, the manual handle 8 can be turned to control the output end gear 16 to continue rotating, thereby controlling the execution switch shaft 19 to complete the execution operation, and the angle of the switch can be accurately grasped by pointing the pointer 9 to the scale on the angle disk 10.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rotor structure of an electric actuator, comprising a housing (1), characterized in that: The top outer wall of the housing (1) is fixedly connected to a top cover (2) by bolts, and a cylinder (3) is installed on the top outer wall of the top cover (2), the piston rod of the cylinder (3) is fixedly connected to an upper chuck (4), and the inner wall of the housing (1) is rotatably connected to a reduction gear (5), and a lower chuck (6) is installed on the top outer wall of the reduction gear (5); A docking gear (15) is meshed on one side of the reduction gear (5), and an output end gear (16) is meshed on the outer wall of the docking gear (15); a manual handle (8) is fixedly connected to the top outer wall of the output end gear (16), and a pointer (9) is installed on the outer wall of the manual handle (8); and an angle plate (10) is fixedly connected to the top outer wall of the top cover (2).

2. The rotor structure of an electric actuator according to claim 1, characterized in that: The upper chuck (4) and the lower chuck (6) are meshed with each other.

3. The rotor structure of an electric actuator according to claim 1, characterized in that: A motor compartment (7) is provided on one side of the housing (1), and a servo motor (11) is installed on the inner wall of the motor compartment (7).

4. The rotor structure of an electric actuator according to claim 3, characterized in that: The output shaft of the servo motor (11) is fixedly connected to a motor rotor (12), and the outer wall of the motor rotor (12) is meshed with a helical gear (13), and the top outer wall of the helical gear (13) is fixedly connected to a driving end gear (14), and the driving end gear (14) is meshed on the outer wall of the reduction gear (5).

5. The rotor structure of an electric actuator according to claim 1, characterized in that: A worm (17) is installed on the outer wall of the bottom of the output end gear (16), and a worm wheel (18) is meshed on the outer wall of the worm (17), and an execution switch shaft (19) is installed on the inner wall of the worm wheel (18).

6. The rotor structure of an electric actuator according to claim 1, characterized in that: The outer wall of the top of the housing (1) is provided with a gear bin (20), and the bevel gear (13), the reduction gear (5), the docking gear (15) and the output end gear (16) are all rotatably connected to the inner wall of the gear bin (20).

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