Multifunctional electric actuator

Abstract

The utility model discloses a multifunctional electric actuator, which relates to the technical field of actuators and comprises a power box, a gear set is rotatably arranged in the power box, an end cover is arranged at the right end of the power box, a control module is arranged at the left end of the power box, and a driving component for driving the gear set to rotate is arranged at the upper end of the power box. The driving assembly comprises an automatic driving module and a manual driving module. The automatic driving module and the manual driving module are matched with each other to drive the gear set to rotate, control over the opening degree of the valve is achieved, and the opening degree of the valve can be controlled by directly rotating the rotating disc during manual operation.

Description

Technical Field

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

[0002] An actuator generally refers to an execution device used to drive a valve to open and close or to adjust the opening degree of a valve. A multifunctional electric actuator is described in a patent document with the publication number CN213245360U. In the initial state, the motor drives the rotating shaft to rotate to achieve the opening and closing of the valve by setting a spring. At the same time, the spring makes the transmission block away from the transmission slot to prevent the motor from driving the handwheel to rotate synchronously. When controlling the valve opening degree through the handwheel in case of motor failure, it is necessary to press the handwheel against the housing and rotate the handwheel at the same time, which is inconvenient to operate.

[0003] Based on this, a multifunctional electric actuator is provided now, which can eliminate the disadvantages of the existing device. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a multifunctional electric actuator to solve the problems in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multifunctional electric actuator includes a power box, a gear set is rotatably arranged in the power box, an end cover is arranged at the right end of the power box, a control module is arranged at the left end of the power box, and a driving component for driving the gear set to rotate is arranged at the upper end of the power box. The driving component includes an automatic driving module and a manual driving module.

[0007] On the basis of the above technical solutions, the utility model also provides the following optional technical solutions:

[0008] In an alternative solution: an installation hole is provided at the left end of the power box. The gear set includes an installation shaft rotatably provided at one end in the installation hole. The other end of the installation shaft is coaxially connected to an installation disk. A connection head for screwing the valve is provided at the right end of the installation disk. The connection head is rotatably connected to the end cover. A first worm gear is coaxially and rotatably provided on the installation shaft. The right end of the first worm gear is coaxially connected to a driving gear. The driving gear is rotatably provided on the installation shaft. A fixing ring is penetrated through the installation shaft on the right side of the driving gear. Four driven gears are rotatably provided on the left end face of the fixing ring. All four driven gears are meshed with the driving gear and are distributed outside the driving gear. An internal spline is provided inside the fixing ring. A third driven gear is rotatably penetrated through the installation shaft. The right end face of the third driven gear contacts the installation disk. An external spline matching the internal spline is provided at the left end of the third driven gear. The fixing ring is inserted on the third driven gear. Four second driven gears are rotatably provided on the left end face of the installation disk. All four second driven gears are meshed with the third driven gear and are distributed outside the third driven gear. A second worm gear is provided outside the four driven gears. A circle of tooth blocks is equidistantly provided inside the second worm gear. The circle of tooth blocks is meshed with all four driven gears and is meshed with all four second driven gears.

[0009] In an alternative solution: the four driven gears are distributed in a square outside the driving gear, and the four second driven gears are distributed in a square outside the third driven gear.

[0010] In an alternative solution: the automatic driving module includes a motor provided at the lower end of the power box. The power output shaft of the motor penetrates through the lower end of the power box and is connected to a first worm in the power box. The first worm is rotatably provided in the power box. The first worm gear is meshed with the first worm.

[0011] In an alternative solution: the manual driving module includes a second worm provided in the power box. One end of the second worm is rotatably connected in the power box. The other end of the second worm penetrates through the power box and is connected to a turntable outside the power box. The second worm gear is meshed with the second worm.

[0012] In an alternative solution: a limit bolt is threadedly connected through the position of the power box corresponding to the installation disk. A locking nut is threadedly connected to the limit bolt. The locking nut is located outside the power box. A convex block matching the limit bolt is provided on the right end face of the installation disk.

[0013] In an alternative solution: an oil seal is provided at the installation hole, an oil seal is provided between the installation disk and the power box, and lubricating oil is filled in the power box.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The utility model realizes the control of the valve opening by the mutual cooperation of an automatic driving module and a manual driving module to drive the rotation of a gear set. When operating manually, the valve opening can be controlled directly by rotating the turntable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the partial disassembled structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the structure after the end cover of the utility model is disassembled.

[0018] Figure 3 For the utility model Figure 2 A partial enlarged view of A in the utility model.

[0019] Figure 4 It is a schematic diagram of the internal structure of the power box after partial disassembly of the utility model.

[0020] Figure 5 It is a schematic diagram of the disassembled structure of the gear set of the utility model.

[0021] NOTES ON REFERENCE NUMERALS IN THE DRAWINGS: 101, control module; 102, end cover; 200, power box; 201, mounting hole; 202, first worm; 203, second worm; 204, turntable; 205, motor; 300, gear set; 301, first worm gear; 302, driving gear; 303, first driven gear; 304, fixing ring; 305, internal spline; 306, second worm gear; 307, tooth block; 308, second driven gear; 309, third driven gear; 310, external spline; 311, mounting shaft; 312, mounting disc; 313, connecting head; 401, convex block; 402, limit bolt; 403, lock nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the purpose, technical solutions and advantages of the utility model more clear and understandable, the following further details the utility model in conjunction with the drawings and embodiments.

[0023] In one embodiment, as Figures 1-5 shown, a multifunctional electric actuator includes a power box 200, a gear set 300 is rotatably arranged in the power box 200, an end cover 102 is arranged at the right end of the power box 200, a control module 101 is arranged at the left end of the power box 200, and a driving assembly for driving the rotation of the gear set 300 is arranged at the upper end of the power box 200. The driving assembly includes an automatic driving module and a manual driving module.

[0024] In this embodiment, the automatic drive module and the manual drive module cooperate with each other to drive the gear set 300 to rotate, so as to control the valve opening. While the end cover 102 seals the power box 200, it also fixes the gear set 300. The control module 101 is used to control the electric actuator to work in the automatic mode.

[0025] In one embodiment, such as Figure 1 , Figure 4 and Figure 5As shown, the automatic driving module includes a motor 205 provided at the lower end of the power box 200. The power output shaft of the motor 205 penetrates through the lower end of the power box 200 and is connected to the first worm 202 inside the power box 200. The first worm 202 is rotatably provided inside the power box 200. The first worm gear 301 meshes with the first worm 202. The manual driving module includes a second worm 203 provided inside the power box 200. One end of the second worm 203 is rotatably connected inside the power box 200, and the other end of the second worm 203 penetrates through the power box 200 and is connected to the turntable 204 outside the power box 200. The second worm gear 306 meshes with the second worm 203. An installation hole 201 is provided at the left end of the power box 200. The gear set 300 includes an installation shaft 311 with one end rotatably provided in the installation hole 201. The other end of the installation shaft 311 is coaxially connected to an installation disc 312. A connection head 313 for screwing the valve is provided at the right end of the installation disc 312. The connection head 313 is rotatably connected to the end cover 102. The first worm gear 301 is coaxially and rotatably provided on the installation shaft 311. The right end of the first worm gear 301 is coaxially connected to the driving gear 302. The driving gear 302 is rotatably provided on the installation shaft 311. A fixing ring 304 is provided on the installation shaft 311 on the right side of the driving gear 302. Four driven gears 303 are rotatably provided on the left end face of the fixing ring 304. The four driven gears 303 all mesh with the driving gear 302 and are distributed in a square outside the driving gear 302. An internal spline 305 is provided inside the fixing ring 304. A third driven gear 309 is rotatably provided on the installation shaft 311. The right end face of the third driven gear 309 contacts the installation disc 312. An external spline 310 matching the internal spline 305 is provided at the left end of the third driven gear 309. The fixing ring 304 is inserted on the third driven gear 309. Four second driven gears 308 are rotatably provided on the left end face of the installation disc 312. The four second driven gears 308 all mesh with the third driven gear 309 and are distributed in a square outside the third driven gear 309. A second worm gear 306 is provided outside the four driven gears 303. A circle of tooth blocks 307 is equidistantly provided inside the second worm gear 306. The circle of tooth blocks 307 meshes with the four driven gears 303 and also meshes with the four second driven gears 308. In the initial state, it is in the automatic mode. In this mode, the motor 205 drives the first worm 202 to rotate, and the first worm 202 drives the first worm gear 301 to rotate. At this time, the turntable 204 does not rotate, and the second worm 203 restricts the second worm gear 306, so that the second worm gear 306 does not rotate. The first worm gear 301 drives the driving gear 302 to rotate synchronously, and the driving gear 302 drives the driven gears 303 to rotate. Under the action of the tooth blocks 307 on the second worm gear 306, the fixing ring 304 rotates, and the fixing ring 304 drives the third driven gear 309 to rotate synchronously. The third driven gear 309 drives the second driven gears 308 to rotate. Under the action of the tooth blocks 307 on the second worm gear 306, the installation disc 312 rotates, that is, the connection head 313 rotates.Realize controlling the valve opening through the motor 205. In the manual mode, the motor 205 stops rotating, the first worm 202 restricts the first worm gear 301, and the first worm gear 301 does not rotate. Manually rotate the turntable 204 to drive the second worm 203 to rotate. The second worm 203 drives the second worm gear 306 to rotate. The tooth block 307 on the second worm gear 306 drives the first driven gear 303 to rotate. Under the action of the driving gear 302, the fixing ring 304 rotates. The fixing ring 304 drives the third driven gear 309 to rotate synchronously. The third driven gear 309 drives the second driven gear 308 to rotate. Under the action of the tooth block 307 on the second worm gear 306, the mounting disc 312 rotates, realizing controlling the valve opening through the turntable 204.

[0026] In one embodiment, as Figures 3-5 shown, a limit bolt 402 is threadedly connected through the position corresponding to the mounting disc 312 on the power box 200. A locking nut 403 is threadedly connected to the limit bolt 402. The locking nut 403 is located outside the power box 200. A convex block 401 matching the limit bolt 402 is provided on the right end face of the mounting disc 312. Rotate the limit bolt 402 to adjust the depth of the limit bolt 402 penetrating into the power box 200. After reaching the position, prevent the limit bolt 402 from rotating on the power box 200 through the locking nut 403. When the convex block 401 contacts the limit bolt 402, the limit bolt 402 prevents the mounting disc 312 from continuing to rotate, playing a limiting role.

[0027] In one embodiment, as Figure 2 and Figure 4 shown, an oil seal is provided at the mounting hole 201. An oil seal is provided between the mounting disc 312 and the power box 200. The power box 200 is filled with lubricating oil to reduce the self-wear of the gear set 300.

[0028] The above embodiments disclose a multifunctional electric actuator. In the initial state, it is in the automatic mode. In this mode, the motor 205 drives the first worm 202 to rotate, and the first worm 202 drives the first worm gear 301 to rotate. At this time, the turntable 204 does not rotate, and the second worm 203 restricts the second worm gear 306, so that the second worm gear 306 does not rotate. The first worm gear 301 drives the driving gear 302 to rotate synchronously, and the driving gear 302 drives the first driven gear 303 to rotate. Under the action of the tooth block 307 on the second worm gear 306, the fixed ring 304 rotates, and the fixed ring 304 drives the third driven gear 309 to rotate synchronously. The third driven gear 309 drives the second driven gear 308 to rotate. Under the action of the tooth block 307 on the second worm gear 306, the mounting plate 312 rotates, that is, the connector 313 rotates, realizing the control of the valve opening by the motor 205. In the manual mode, the motor 205 stops rotating, and the first worm 202 restricts the first worm gear 301, and the first worm gear 301 does not rotate. Manually rotate the turntable 204 to drive the second worm 203 to rotate, and the second worm 203 drives the second worm gear 306 to rotate. The tooth block 307 on the second worm gear 306 drives the first driven gear 303 to rotate. Under the action of the driving gear 302, the fixed ring 304 rotates, and the fixed ring 304 drives the third driven gear 309 to rotate synchronously. The third driven gear 309 drives the second driven gear 308 to rotate. Under the action of the tooth block 307 on the second worm gear 306, the mounting plate 312 rotates, realizing the control of the valve opening by the turntable 204. Rotate the limit bolt 402 to adjust the depth of the limit bolt 402 penetrating into the power box 200. After reaching the position, use the locking nut 403 to prevent the limit bolt 402 from rotating on the power box 200. When the convex block 401 contacts the limit bolt 402, the limit bolt 402 stops the mounting plate 312 from continuing to rotate, playing a limiting role to prevent excessive screwing and damaging the valve.

[0029] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present application, and all should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A multifunctional electric actuator, comprising a power box (200), characterized in that: A gear set (300) is rotatably arranged in the power box (200), an end cover (102) is arranged at the right end of the power box (200), a control module (101) is arranged at the left end of the power box (200), and a driving assembly for driving the gear set (300) to rotate is arranged at the upper end of the power box (200), the driving assembly comprising an automatic driving module and a manual driving module; The power box (200) is provided with a mounting hole (201) at the left end, the gear set (300) comprises a mounting shaft (311) with one end rotatably arranged in the mounting hole (201), the other end of the mounting shaft (311) is coaxially connected to a mounting plate (312), a connecting head (313) for turning a valve is provided at the right end of the mounting plate (312), the connecting head (313) is rotatably connected to the end cover (102), and a first worm gear (301) is coaxially rotatably arranged on the mounting shaft (311) The right end of the first worm gear (301) is coaxially connected to the driving gear (302), and the driving gear (302) is rotatably arranged on the installation shaft (311). A fixing ring (304) is passed through the installation shaft (311) on the right side of the driving gear (302), and four first driven gears (303) are rotatably arranged on the left end surface of the fixing ring (304). The four first driven gears (303) are all meshed with the driving gear (302) and are distributed on the outside of the driving gear (302). An internal spline (305) is provided on the inner side of the fixing ring (304); a third driven gear (309) is rotatably passed through the mounting shaft (311); the right end surface of the third driven gear (309) contacts the mounting plate (312); an external spline (310) matching the internal spline (305) is provided on the left end of the third driven gear (309); the fixing ring (304) is plugged into the third driven gear (309); four second driven gears ( 308), the four second driven gears (308) are all meshed with the third driven gear (309) and are distributed on the outside of the third driven gear (309), the second worm gear (306) is provided on the outside of the four first driven gears (303), a circle of tooth blocks (307) is equidistantly provided on the inside of the second worm gear (306), one circle of the tooth blocks (307) is meshed with the four first driven gears (303), and one circle of the tooth blocks (307) is meshed with the four second driven gears (308).

2. A multifunctional electric actuator according to claim 1, characterized in that: The four first driven gears (303) are distributed in a square outside the driving gear (302), and the four second driven gears (308) are distributed in a square outside the third driven gear (309).

3. A multifunctional electric actuator according to claim 1, characterized in that: The automatic drive module comprises a motor (205) arranged at the lower end of the power box (200); a power output shaft of the motor (205) passes through the lower end of the power box (200) and is connected to a first worm (202) in the power box (200); the first worm (202) is rotatably arranged in the power box (200); and the first worm wheel (301) is meshed with the first worm (202).

4. A multifunctional electric actuator according to claim 1, characterized in that: The manual drive module comprises a second worm (203) arranged in a power box (200); one end of the second worm (203) is rotatably connected in the power box (200); the other end of the second worm (203) passes through the power box (200) and is connected to a turntable (204) outside the power box (200); and the second worm wheel (306) is meshed with the second worm (203).

5. A multifunctional electric actuator according to claim 1, characterized in that: A position on the power box (200) corresponding to the mounting plate (312) is threadedly connected with a limit bolt (402), and a locking nut (403) is threadedly connected to the limit bolt (402). The locking nut (403) is located outside the power box (200), and a protrusion (401) that matches the limit bolt (402) is provided on the right end surface of the mounting plate (312).

6. A multifunctional electric actuator according to claim 1, characterized in that: An oil seal is provided at the mounting hole (201), an oil seal is provided between the mounting plate (312) and the power box (200), and the power box (200) is filled with lubricating oil.

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