Temperature control type electric actuator

Abstract

The utility model discloses a temperature control type electric actuator, and relates to the technical field of actuators. The electric actuator comprises an upper shell and a lower shell, and an electric actuator is arranged in the upper shell and the lower shell. The environment temperature is monitored in real time through the temperature sensor, when the temperature reaches a set value, the control chip on the circuit board automatically controls the electric actuating mechanism to act, automatic opening and closing of the valve are achieved, manual intervention is not needed, and the automation degree and the response speed of a system are improved; the angular displacement sensor is arranged on the surface of the execution shaft in a sleeving mode, the rotation angle of the execution shaft can be accurately detected, accurate control over the opening degree of the valve is ensured, the high-precision requirement for the position of the valve in the industrial process is met, the rotation angle of the execution shaft is limited through the design of the arc-shaped through groove and the convex shaft, and equipment damage caused by excessive rotation is avoided; when the convex shaft moves to the contact switches at the two ends of the arc-shaped through groove, the control chip automatically stops driving the motor, and over-position protection is provided.

Description

TECHNICAL FIELD

[0001] The utility model relates to actuator technical field, concretely relates to a temperature control formula electric actuator. BACKGROUND

[0002] With the development of industrial automation, electric actuators have been widely used in various control systems, especially in scenarios that require precise control of valve opening and closing. Traditional electric actuators usually drive the valve to open and close through an electric actuator, which has a relatively simple internal structure mainly composed of a motor, a reducer, and an output shaft. However, these traditional actuators have certain limitations when it comes to precise control based on temperature changes.

[0003] Existing electric actuators usually lack direct temperature sensing and response capabilities. In some specific industrial processes such as chemical, pharmaceutical, and food processing, temperature is a key control parameter. If the actuator can automatically trigger the opening and closing of the valve when the detected temperature reaches the set value, it will greatly improve the automation level and response speed of the control system. In addition, traditional actuators also have some design deficiencies, such as lack of precise detection of the rotation angle of the actuator, inability to achieve precise control of the valve opening, and poor adaptability to different shapes and specifications of the actuator end.

[0004] Therefore, a temperature control type electric actuator is proposed. SUMMARY

[0005] The utility model discloses a kind of temperature control type electric actuators to solve the problems raised in the above background art.

[0006] The utility model discloses the following technical solutions to achieve the above purposes:

[0007] A temperature control type electric actuator includes an upper shell and a lower shell. The interior of the upper shell and the lower shell is provided with an electric actuator. A copper column is fixedly installed on the electric actuator. The top end of the copper column is fixedly installed with a circuit board through a screw. An angular displacement sensor is provided on the circuit board. The angular displacement sensor and the rotating part of the electric actuator are sleeved. A temperature sensor is fixedly connected to the top surface of the circuit board. The temperature sensor penetrates through the upper shell and extends to the outside.

[0008] Further, the electric actuator comprises a first mounting plate and a second mounting plate fixedly installed in the interior of the lower shell, and the first mounting plate and the second mounting plate are fixed by bolts, the bottom surface of the second mounting plate is fixedly installed with a driving motor, the output end of the driving motor is fixedly connected with a pinion, the first mounting plate and the second mounting plate and the upper shell and the lower shell are rotationally installed with an execution shaft, and the surface of the execution shaft is fixedly sleeved with a gear, the pinion and the gear are engaged, and an angular displacement sensor is sleeved on the surface of the execution shaft.

[0009] Further, the bottom surface of the second mounting plate is provided with an arc-shaped through groove, the bottom surface of the gear is fixedly installed with a convex shaft, and the bottom surface of the second mounting plate and located at both ends of the arc-shaped through groove is fixedly installed with a contact switch.

[0010] Further, the arc angle of the arc-shaped through groove is fifty degrees, and the convex shaft is slidingly arranged in the arc-shaped through groove.

[0011] Further, the edges of the connection between the upper shell and the lower shell are filled with sealing glue to seal when the upper shell and the lower shell are closed.

[0012] Further, the top end of the execution shaft is in the shape of a quadrangular prism, and the bottom end of the execution shaft is in the shape of a semicylindrical structure.

[0013] The utility model discloses the beneficial effects are as follows:

[0014] Through the real-time monitoring of the temperature sensor to the ambient temperature, when the temperature reaches the set value, the control chip on the circuit board automatically controls the electric actuator to act, realizes the automatic opening and closing of the valve, does not need manual intervention, improves the automation degree and response speed of the system.

[0015] Through the angular displacement sensor sleeved on the surface of the execution shaft, the rotation angle of the execution shaft can be accurately detected, the accurate control of the valve opening is ensured, the high-precision requirement of the valve position in the industrial process is met, the design of the arc-shaped through groove and the convex shaft limits the rotation angle of the execution shaft, avoids the equipment damage caused by excessive rotation, when the convex shaft moves to the contact switch at both ends of the arc-shaped through groove, the control chip automatically stops the driving motor, and over-travel protection is provided.

[0016] The electric actuator and the circuit board in the interior of the upper shell and the lower shell are sealed and packaged by the sealing glue, dust and moisture are prevented from entering, the reliability and service life of the equipment are improved, and the utility model is especially suitable for the harsh working environment.

[0017] Through the top end of the execution shaft being in the shape of a quadrangular prism and the bottom end being in the shape of a semicylindrical structure, different shapes and specifications of execution ends can be adapted, and the universality and application range of the equipment are enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1is a three-dimensional structure schematic view of the utility model;

[0019] Figure 2 is a front view of the utility model;

[0020] Figure 3 is a local schematic view of the utility model;

[0021] Figure 4 is a schematic view of the electric actuator of the utility model;

[0022] Figure 5 is a local schematic view of the electric actuator of the utility model;

[0023] Reference signs: 1, upper shell;2, lower shell;3, electric actuator;301, first mounting plate;302, second mounting plate;303, drive motor;304, pinion;305, execution shaft;306, gear wheel;307, arc-shaped through slot;308, convex shaft;309, contact switch;4, copper column;5, circuit board;6, angular displacement sensor;7, temperature sensor. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0026] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second" and the like are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] like Figures 1 to 5 As shown, a temperature-controlled electric actuator includes an upper housing 1 and a lower housing 2. An electric actuator 3 is housed inside the upper and lower housings 1 and 2. A copper column 4 is fixedly mounted on the electric actuator 3. A circuit board 5 is fixedly mounted to the top of the copper column 4 by screws. An angular displacement sensor 6 is mounted on the circuit board 5, and the angular displacement sensor 6 is fitted onto the rotating part of the electric actuator 3. A temperature sensor 7 is fixedly connected to the top surface of the circuit board 5, and the temperature sensor 7 penetrates the upper housing 1 and extends to its exterior. More specifically, the upper and lower housings 1 and 2 provide a sealed enclosure for the electric actuator 3 and the circuit board 5, thus protecting them. When the temperature sensor 7 detects that the temperature has reached a set value, the control chip on the circuit board 5 controls the electric actuator 3 to perform a closing or opening operation on a valve, etc. The angular displacement sensor 6 detects the rotation angle of the rotating part of the electric actuator 3.

[0029] The electric actuator 3 includes a first mounting plate 301 and a second mounting plate 302 fixedly installed inside the lower housing 2, and the first mounting plate 301 and the second mounting plate 302 are fixedly fixedly fixed. A drive motor 303 is fixedly installed on the bottom surface of the second mounting plate 302, and a pinion 304 is fixedly connected to the output end of the drive motor 303. An actuator shaft 305 is rotatably installed on the first mounting plate 301, the second mounting plate 302, the upper housing 1, and the lower housing 2, and a large gear 306 is fixedly sleeved on the surface of the actuator shaft 305. The pinion 304 and the large gear 306 mesh with each other. An angular displacement sensor 6 is sleeved on the surface of the actuator shaft 305. More specifically, the control chip on the circuit board 5 controls the drive motor 303 to drive the pinion 304 to rotate. Through the meshing of the pinion 304 and the large gear 306, the large gear 306 and the actuator shaft 305 are driven to rotate. The rotation of the actuator shaft 305 drives the valve or other components to perform closing or opening operations.

[0030] The bottom surface of the second mounting plate 302 is provided with an arc-shaped through slot 307, the bottom surface of the large gear 306 is fixedly provided with a convex shaft 308, and the bottom surface of the second mounting plate 302 and located at both ends of the arc-shaped through slot 307 are fixedly provided with contact switches 309. More specifically, the convex shaft 308 is driven to rotate by the large gear 306, so that the convex shaft 308 moves in the arc-shaped through slot 307 on the surface of the second mounting plate 302, and the contact switch 309 is contacted by the convex shaft 308, so that the control chip on the circuit board 5 controls the driving motor 303 to stop running.

[0031] The arc angle of the arc-shaped through slot 307 is fifty degrees, and the convex shaft 308 is slidably arranged in the arc-shaped through slot 307. More specifically, the arc angle of the arc-shaped through slot 307 is fifty degrees, so that the angle of the rotating execution shaft 305 can be limited.

[0032] The edge of the connection between the upper shell 1 and the lower shell 2 is filled with sealant to seal when the upper shell 1 and the lower shell 2 are closed. More specifically, the sealant seals the connection gap between the upper shell 1 and the lower shell 2.

[0033] The top end of the execution shaft 305 is in the shape of a quadrangular prism, and the bottom end of the execution shaft 305 is in the shape of a semicircular cylinder. More specifically, the two ends of the execution shaft 305 are arranged in different shapes, which can be connected with different execution ends.

[0034] In summary: the upper shell 1 and the lower shell 2 seal and package the electric actuator 3 and the circuit board 5, realize protection, when the temperature sensor 7 detects that the temperature reaches the set value, the control chip on the circuit board 5 controls the electric actuator 3 to drive the valve to close or open, and the angular displacement sensor 6 detects the angle of the rotating part of the electric actuator 3.

[0035] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A temperature controlled electric actuator, characterized in that The utility model provides an electric actuator, including upper shell (1) and lower shell (2), the inside of upper shell (1) and lower shell (2) is provided with electric actuator (3), is fixedly installed with copper column (4) on electric actuator (3), and the top of copper column (4) is fixedly installed with circuit board (5), and the circuit board (5) is provided with angular displacement sensor (6), angular displacement sensor (6) and the rotation part of electric actuator (3) are set, the top surface of circuit board (5) is fixedly connected with temperature sensor (7), and temperature sensor (7) penetrates upper shell (1) and extends to its outside.

2. A temperature controlled electric actuator according to claim 1, wherein The electric actuator (3) includes a first mounting plate (301) and a second mounting plate (302) fixedly installed inside the lower shell (2), and the first mounting plate (301) and the second mounting plate (302) are fixed by bolts, the bottom surface of the second mounting plate (302) is fixedly installed with a drive motor (303), the output end of the drive motor (303) is fixedly connected with a pinion (304), the first mounting plate (301) and the second mounting plate (302) and the upper shell (1) and the lower shell (2) are rotatably installed with an execution shaft (305), and the surface of the execution shaft (305) is fixedly sleeved with a large gear (306), the pinion (304) and the large gear (306) are engaged, and the angular displacement sensor (6) is sleeved on the surface of the execution shaft (305).

3. A temperature controlled electric actuator according to claim 2, wherein The bottom surface of the second mounting plate (302) is provided with an arc-shaped through slot (307), the bottom surface of the large gear (306) is fixedly installed with a convex shaft (308), and the bottom surface of the second mounting plate (302) and located at both ends of the arc-shaped through slot (307) are respectively fixedly installed with contact switches (309).

4. A temperature controlled electric actuator according to claim 3, wherein The arc angle of the arc-shaped through slot (307) is fifty degrees, and the convex shaft (308) is slidably arranged in the arc-shaped through slot (307).

5. A temperature controlled electric actuator according to claim 1, wherein, The edges of the connection between the upper shell (1) and the lower shell (2) are filled with sealant to seal when the upper shell (1) and the lower shell (2) are closed.

6. A temperature controlled electric actuator according to claim 3, wherein, The top end of the execution shaft (305) is in the shape of a quadrangular prism, and the bottom end of the execution shaft (305) is in the shape of a semicircular cylinder.

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