Novel electric actuator
By introducing an angle encoder and leaf spring connection into the electric actuator, the problem of difficulty in intuitive display of the spindle rotation angle and gear box vibration is solved, and the convenience of angle display and output stability are achieved.
Patent Information
- Application Number
- CN202421856776.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-02
AI Technical Summary
Existing electric actuators cannot intuitively obtain the spindle rotation angle, and mechanical vibrations occur when the gearbox is driven to affect the stability.
The rotation angle of the gearbox spindle is converted into an electrical signal through an angle encoder, displayed on the indicator cap, and a flexible connection between the gearbox and the lower cover is realized through a leaf spring to reduce vibration.
It realizes intuitive display of the spindle rotation angle, which facilitates parameter adjustment and recording, while reducing the vibration of the gearbox and improving the smoothness of the output.
Smart Images
Figure CN223076384U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a novel electric actuator, belonging to the technical field of electric actuators. Background Art
[0002] An actuator is an important device for controlling the on-off of fluid in a pipeline in an industrial automatic control system. It is widely used in various industries such as electric power, petroleum, metallurgy, coal, municipal administration, environmental protection, and water treatment. An electric actuator is one type of actuator. The existing electric actuator obtains the rotation angle of the main shaft through an angle encoder to control the opening size of the valve. However, the rotation angle of the main shaft cannot be obtained intuitively, which is not convenient for the user to adjust or record parameters. At the same time, the motor increases the torque through the main shaft of the gearbox and then transmits it to the valve. Mechanical vibrations will occur between the various gears inside the gearbox, affecting the smoothness of the output of the gearbox.
[0003] Therefore, how to provide a novel electric actuator is the research purpose of the utility model. Summary of the Utility Model
[0004] Aiming at the deficiencies of the above technologies, the utility model provides a novel electric actuator. The rotation angle of the main shaft of the gearbox is converted into an electrical signal by an angle encoder and transmitted to the control circuit board, and is visually displayed through an indicating cap, which is convenient for the user to adjust or record parameters. At the same time, the gearbox and the lower cover are pressed tightly by a leaf spring and are flexibly connected, with stable output and small vibration.
[0005] In order to solve the problems of the existing technology, the technical solution adopted by the utility model is:
[0006] A novel electric actuator, characterized in that: it includes a lower cover and an upper cover. The inner bottom of the lower cover is provided with a gearbox. A leaf spring is provided between the lower cover and the gearbox. The input end of the gearbox is drivingly connected with a motor, and the output end is provided with a vertically upward main shaft. The main shaft is sequentially sleeved with a potentiometer bracket, a synchronous gear, a circuit board, a cam assembly, and an indicating cap from bottom to top. An angle encoder is provided on the potentiometer bracket. The input shaft of the angle encoder is meshed and connected with the synchronous gear through a driven synchronous gear, and the output end is electrically connected with the circuit board through a connection terminal. The upper cover is installed on the top of the lower cover and covers the gearbox, the motor, and the main shaft.
[0007] Further, a nameplate is provided on the top of the upper cover, and an angle parameter table matching the indicating cap is marked on the nameplate.
[0008] Further, a circuit diagram indicator board is provided on one side of the bottom of the upper cover, and a foaming sealing strip is provided at the sealing place between the upper cover and the lower cover.
[0009] Further, the potentiometer bracket is fixedly installed on the top of the gearbox through bolts.
[0010] Further, several groups of cable connectors electrically connected to the circuit board are provided on one side of the lower cover.
[0011] The beneficial effects of the present utility model are as follows: 1. The rotation angle of the main shaft of the gearbox is converted into an electrical signal by the angle encoder and transmitted to the control circuit board, and is visually displayed through the indicating cap, which is convenient for the user to adjust or record parameters; 2. The gearbox and the lower cover are pressed tightly by the leaf spring and are flexibly connected, with stable output and small vibration. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is the exploded view of the structure of the present utility model.
[0013] Figure 2 is the cross-sectional view of the present utility model.
[0014] Figure 3 is the top view of the present utility model.
[0015] Wherein: lower cover 1, upper cover 2, gearbox 3, leaf spring 4, motor 5, main shaft 6, potentiometer bracket 7, synchronous gear 8, circuit board 9, cam assembly 10, indicating cap 11, angle encoder 12, nameplate 13, circuit diagram indicator board 14, foaming sealing strip 15, cable connector 16. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0016] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the following is a further analysis of the present utility model in conjunction with the attached Figures 1-3 drawings.
[0017] As Figures 1-3 shown, a new type of electric actuator, characterized in that: it includes a lower cover 1 and an upper cover 2, a gearbox 3 is provided at the inner bottom of the lower cover 1, a leaf spring 4 is provided between the lower cover 1 and the gearbox 3, and the leaf spring 4 can buffer the mechanical vibration of the gearbox 3 and make the rotation of the main shaft 6 smoother. The input end of the gearbox 3 is drivingly connected with a motor 5, and the output end is provided with a vertically upward main shaft 6. The main shaft 6 is sequentially sleeved with a potentiometer bracket 7, a synchronous gear 8, a circuit board 9, a cam assembly 10 and an indicating cap 11 from bottom to top. An angle encoder 12 is provided on the potentiometer bracket 7. The input shaft of the angle encoder 12 is meshed and connected with the synchronous gear 8 through a driven synchronous gear, and the output end is electrically connected with the circuit board 9 through a connection terminal. The upper cover 2 is installed on the top of the lower cover 1 and covers the gearbox 3, the motor 5 and the main shaft 6.
[0018] In this embodiment, preferably, a nameplate 13 is provided on the top of the upper cover 2, and an angle parameter table matching the indicating cap 11 is marked on the nameplate 13.
[0019] In this embodiment, preferably, a circuit diagram indicator board 14 is provided on one side of the bottom of the upper cover 2, and a foaming sealing strip 15 is provided at the sealing place between the upper cover 2 and the lower cover 1.
[0020] In this embodiment, preferably, the potentiometer bracket 7 is fixedly arranged on the top of the gear box 3 by bolts.
[0021] In this embodiment, preferably, a plurality of groups of cable connectors 16 electrically connected to the circuit board 9 are provided on one side of the lower cover 1.
[0022] The specific principle of the present utility model: The motor 5 drives the gears in the gear box 3 to rotate, so that the main shaft 6 of the gear box 3 rotates and is transmitted to the valve, and the input shaft of the angle encoder 12 is driven to rotate through the driven synchronous gear and the synchronous gear 8. The angle encoder 12 converts the angle change in the mechanical motion into an electrical signal, and feeds back the angle position information of the main shaft 6 to the circuit board 9 in real time, and transmits it to the control system through the cable connector. At the same time, the angle change during the rotation of the main shaft 6 can be intuitively displayed by the indicating cap 11 at the top of the main shaft 6, which is convenient for the user to adjust or record parameters; at the same time, the gear box 3 and the lower cover 1 are pressed tightly by the leaf spring 4 and are flexibly connected, with stable output and small vibration.
[0023] The technical solutions provided in this application have been introduced in detail above. In this article, embodiments are used to elaborate on the principles and implementation manners of this application. The descriptions of the above embodiments are only used to help understand the method and its core idea of this application; at the same time, for those of ordinary skill in the art, according to the idea of this application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to this application.
Claims
1. A new type of electric actuator, characterized in that: It includes a lower cover and an upper cover. A gearbox is provided at the inner bottom of the lower cover. A leaf spring is provided between the lower cover and the gearbox. The input end of the gearbox is drivingly connected to a motor, and the output end is provided with a vertical main shaft. The main shaft is sequentially sleeved with a potentiometer bracket, a synchronous gear, a circuit board, a cam assembly and an indicating cap from bottom to top. An angle encoder is provided on the potentiometer bracket. The input shaft of the angle encoder is meshed and connected with the synchronous gear through a driven synchronous gear, and the output end is electrically connected to the circuit board through a connection terminal. The upper cover is installed on the top of the lower cover and covers the gearbox, the motor and the main shaft above.
2. A novel electric actuator according to claim 1, characterized in that: A nameplate is provided on the top of the upper cover, and an angle parameter table matching the indicating cap is marked on the nameplate.
3. A novel electric actuator according to claim 1, characterized in that: A circuit diagram indicator board is provided on one side of the bottom of the upper cover, and a foaming sealing strip is provided at the sealing place between the upper cover and the lower cover.
4. A novel electric actuator according to claim 1, characterized in that: The potentiometer bracket is fixedly provided on the top of the gearbox through bolts.
5. A novel electric actuator according to claim 1, characterized in that: Several groups of cable connectors electrically connected to the circuit board are provided on one side of the lower cover.