A clutch device and a rotary disconnector

Abstract

The utility model discloses a kind of clutch device and rotary disconnecting switch, it is related to low-voltage electrical apparatus technical field.The clutch device includes driving mechanism, gear ring, planet carrier, planet wheel, main shaft, driving frame and limiting mechanism.The outside of gear ring is provided with first annular rack, the inside of gear ring is provided with second annular rack, main shaft is provided with sun gear, driving mechanism is cooperated with first annular rack, planet carrier is rotatably sleeved in main shaft outside, and it is set in gear ring, planet wheel is rotatably installed in planet carrier, planet wheel is simultaneously engaged with sun gear and second annular rack, main shaft is connected with driving frame, limiting mechanism is selectively connected with planet carrier.The clutch device provided in the application can realize the clutch function of electric operation and manual operation, avoid synchronous movement of all transmission parts, reduce frictional resistance, reduce energy consumption during electric operation, save effort and improve operation feeling during manual operation.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical technology, and more specifically, to a clutch device and a rotary disconnect switch. Background Technology

[0002] Disconnect switches are primarily used to reliably isolate the energized parts of high-voltage power distribution equipment from the energized parts, ensuring safety during maintenance. Current disconnect switches generally have both electric and manual operation modes, but lack a clutch function. This results in synchronized movement of all transmission components within the disconnect switch during both electric and manual operation, leading to high frictional resistance and affecting the operating feel. Therefore, there is an urgent need for a disconnect switch product with a clutch function, low frictional resistance, and a better operating feel. Utility Model Content

[0003] The purpose of this application is to provide a clutch device and a rotary disconnect switch, which can solve the problems of existing technologies such as the lack of clutch function in electric and manual operation, synchronous movement of various transmission components, and large frictional resistance.

[0004] A first aspect of this application provides a clutch device, including a drive mechanism, a gear ring, a planetary carrier, planetary gears, a main shaft, a drive frame, and a limiting mechanism. A first annular rack is provided on the outer side of the gear ring, and a second annular rack is provided on the inner side of the gear ring. The main shaft is provided with a sun gear. The drive mechanism engages with the first annular rack. The planetary carrier is rotatably sleeved outside the main shaft and disposed within the gear ring. Planetary gears are rotatably mounted on the planetary carrier and simultaneously mesh with the sun gear and the second annular rack. The main shaft is connected to the drive frame and is used to connect to a handle. The limiting mechanism is selectively connected to the planetary carrier. The planetary carrier is used to stop rotating when connected to the limiting mechanism, so that the drive mechanism can drive the drive frame to rotate via the gear ring, planetary gears, and main shaft to achieve electric operation. The planetary carrier is also used to rotate under the drive of the main shaft when not connected to the limiting mechanism, while the main shaft drives the drive frame to rotate to achieve manual operation.

[0005] As one possible implementation, the drive mechanism has damping to prevent the gear ring from rotating under the drive of the planetary gears during manual operation.

[0006] As one possible implementation, the planetary carrier includes a first frame and a second frame, which are connected and rotatably mounted on the outside of the main shaft. The planetary gears are rotatably disposed between the first frame and the second frame. The first frame is disposed on the side of the second frame away from the drive frame, and the limiting mechanism is selectively connected to the first frame.

[0007] In one possible implementation, there are multiple planetary gears arranged in a ring array, and each planetary gear is rotatably positioned between the first frame and the second frame. The sun gear is positioned between the multiple planetary gears and meshes with them simultaneously. A gear ring surrounds the multiple planetary gears, and all the planetary gears mesh with the second ring rack.

[0008] As one possible implementation, the planetary carrier also includes multiple connecting shafts. The first carrier is connected to the second carrier through multiple connecting shafts, and each planetary gear is rotatably fitted onto one connecting shaft.

[0009] As one possible implementation, the limiting mechanism includes a limiting rod, and an extension ring is provided on the first frame extending axially along the main shaft. The extension ring has a positioning hole, and the limiting rod is used to extend into or retract from the positioning hole.

[0010] As one possible implementation, the limiting mechanism further includes a toggle block and a spring. The limiting rod includes a positioning section, a mating section, and an extension section arranged sequentially along its axial direction. A first limiting ring is provided between the positioning section and the mating section, and a second limiting ring is provided between the mating section and the extension section. The toggle block slides with the mating section. The spring is sleeved outside the mating section, with one end of the spring abutting against the first limiting ring and the other end abutting against the toggle block. The positioning section is used to mate with a positioning hole, and the second limiting ring is used to stop the toggle block.

[0011] As one possible implementation, the clutch device also includes a micro switch, the toggle block is connected to the micro switch, the micro switch is electrically connected to the drive mechanism, and the micro switch is used to control the drive mechanism to be energized when the toggle block drives the limit rod to retract out of the positioning hole.

[0012] As one possible implementation, the drive mechanism includes a drive motor and a reduction gear set, with the input end of the reduction gear set connected to the drive motor and the output end of the reduction gear set meshing with a first annular rack.

[0013] A second aspect of this application provides a rotary disconnect switch, including the clutch device described above. This rotary disconnect switch can solve the problems in the prior art where electric and manual operation lack clutch function, transmission components move synchronously, and frictional resistance is high.

[0014] The beneficial effects of the embodiments of this application include: The clutch device includes a drive mechanism, a gear ring, a planetary carrier, planetary gears, a main shaft, a drive frame, and a limiting mechanism. A first annular rack is located on the outer side of the gear ring, and a second annular rack is located on the inner side. The main shaft has a sun gear. The drive mechanism engages with the first annular rack. The planetary carrier is rotatably mounted on the main shaft and located within the gear ring. Planetary gears are rotatably mounted on the planetary carrier and mesh with both the sun gear and the second annular rack. The main shaft is connected to the drive frame and is used to connect to a handle. The limiting mechanism selectively connects to the planetary carrier. The planetary carrier stops rotating when connected to the limiting mechanism, allowing the drive mechanism to drive the drive frame to rotate via the gear ring, planetary gears, and main shaft for electric operation. The planetary carrier also rotates under the drive of the main shaft when not connected to the limiting mechanism, simultaneously driving the drive frame to rotate for manual operation. The clutch device provided in this application, through planetary gears that simultaneously mesh with the sun gear and the second ring rack, and a limiting mechanism that selectively connects to the planet carrier, can prevent the planet carrier from rotating during electric operation, and can also reduce or even avoid the rotation of the drive mechanism and the ring gear through the transmission damping between the gears during manual operation. This achieves the clutch function for both electric and manual operation, avoids synchronous movement of all transmission components, reduces frictional resistance, reduces energy consumption during electric operation, and saves effort and improves the operating feel during manual operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the rotary disconnect switch provided in an embodiment of the present utility model; Figure 2 A schematic diagram illustrating the connection between the clutch device and the opening / closing device provided in this embodiment of the utility model; Figure 3 A schematic diagram of the structure of the clutch device provided in this embodiment of the utility model, in which the planetary gear simultaneously meshes with the ring gear and the sun gear; Figure 4 This is a schematic diagram of the connection between the drive frame and the main shaft in the clutch device provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the connection between the limiting mechanism and the planetary carrier in the clutch device provided in this embodiment of the utility model; Figure 6 This is a schematic diagram of the limiting mechanism in the clutch device provided in an embodiment of the present utility model.

[0017] Icons: 10-Rotary disconnect switch; 100-Clutch device; 110-Drive mechanism; 111-Drive motor; 112-Reduction gear set; 120-Ring gear; 121-First ring rack; 122-Second ring rack; 130-Planetary carrier; 131-First frame; 132-Second frame; 133-Connecting shaft; 134-Extension ring; 135-Positioning hole; 140-Planetary gear; 150-Main shaft; 151-Sun gear; 160-Drive frame; 170-Limiting mechanism; 171-Limiting rod; 172-Actuating block; 173-Spring; 174-Positioning section; 175-Matching section; 176-Extension section; 177-First limit ring; 178-Second limit ring; 200-Opening and closing device. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that the terms "inner," "outer," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is 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. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0024] Please refer to the reference. Figures 1 to 6 This utility model provides a rotary disconnect switch 10 for realizing the clutch function of electric and manual operation. It can solve the problems of existing technologies where electric and manual operation lack clutch function, synchronous movement of various transmission components, and large frictional resistance.

[0025] The clutch device 100 includes a drive mechanism 110, a gear ring 120, a planetary carrier 130, planetary gears 140, a main shaft 150, a drive frame 160, and a limiting mechanism 170. A first annular rack 121 is provided on the outer side of the gear ring 120, and a second annular rack 122 is provided on the inner side of the gear ring 120. The drive mechanism 110 engages with the first annular rack 121, enabling the drive mechanism 110 to drive the entire gear ring 120 to rotate via the first annular rack 121. A sun gear 151 is provided on the main shaft 150. The planetary carrier 130 is rotatably mounted outside the main shaft 150 and located inside the gear ring 120. Planetary gears 140 are rotatably mounted on the planetary carrier 130, and simultaneously mesh with the sun gear 151 and the second annular rack 122. Under the action of the drive mechanism 110, the gear ring 120 can drive the planetary gears 140 and the sun gear 151 to rotate via the second annular rack 122. The main shaft 150 is connected to the drive frame 160, and the main shaft 150 rotates with the rotation of the sun gear 151 to drive the drive frame 160 to rotate. The main shaft 150 is used to connect to a handle (not shown) to drive the drive frame 160 to rotate under the action of the handle. The drive frame 160 is used to connect to the opening and closing device 200 to drive the opening and closing device 200 to open or close the circuit. The limit mechanism 170 is selectively connected to the planetary carrier 130 to realize the locking and unlocking functions of the planetary carrier 130. That is, when the limit mechanism 170 is connected to the planetary carrier 130, the planetary carrier 130 cannot rotate around its axis; when the limit mechanism 170 is not connected to the planetary carrier 130, the planetary carrier 130 can rotate around its axis.

[0026] Specifically, the planetary carrier 130 is used to stop rotating when the limit mechanism 170 is connected to it, so that the drive mechanism 110 can drive the drive frame 160 to rotate through the gear ring 120, planetary gear 140 and main shaft 150, thereby driving the opening and closing device 200 to move and realize electric operation; the planetary carrier 130 is also used to rotate under the drive of the main shaft 150 when the limit mechanism 170 is not connected to it, and at the same time the main shaft 150 drives the drive frame 160 to rotate, thereby driving the opening and closing device 200 to move and realize manual operation.

[0027] The clutch device 100 provided in this application, through the planetary gear 140 that simultaneously meshes with the sun gear 151 and the second ring rack 122, and the limiting mechanism 170 that is selectively connected to the planetary carrier 130, can prevent the planetary carrier 130 from rotating during electric operation, and can also reduce or even avoid the rotation of the drive mechanism 110 and the ring gear 120 through the transmission damping between the gears during manual operation, thereby realizing the clutch function of electric and manual operation, avoiding synchronous movement of all transmission components, reducing frictional resistance, reducing energy consumption during electric operation, and saving effort and improving the operating feel during manual operation.

[0028] Optionally, the drive mechanism 110 has damping to apply resistance to the gear ring 120 during manual operation, preventing the gear ring 120 from rotating under the drive of the planetary gear 140, thereby reducing frictional resistance and improving the operating feel.

[0029] The planetary carrier 130 includes a first carrier 131 and a second carrier 132. The first carrier 131 and the second carrier 132 are connected and rotatably mounted on the main shaft 150, and both the first carrier 131 and the second carrier 132 are rotatable relative to the main shaft 150. A planetary gear 140 is rotatably disposed between the first carrier 131 and the second carrier 132, and the planetary gear 140 is rotatable relative to both the first carrier 131 and the second carrier 132 simultaneously. The first carrier 131 is disposed on the side of the second carrier 132 away from the drive frame 160, and a limiting mechanism 170 is selectively connected to the first carrier 131, and the limiting mechanism 170 can prevent the second carrier 132 from rotating through the first carrier 131.

[0030] Furthermore, there are multiple planetary gears 140 arranged in a circular array, all rotatably positioned between the first frame 131 and the second frame 132. A sun gear 151 is positioned between the multiple planetary gears 140 and meshes with them simultaneously. A ring gear 120 surrounds the multiple planetary gears 140, and all the planetary gears 140 mesh with a second annular rack 122.

[0031] In this embodiment, the planetary carrier 130 further includes multiple connecting shafts 133. The first carrier 131 is connected to the second carrier 132 via the multiple connecting shafts 133 to improve the connection strength and prevent the first carrier 131 and the second carrier 132 from separating. Each planetary gear 140 is rotatably sleeved on a connecting shaft 133, and the planetary gear 140 can rotate relative to the connecting shaft 133, while the connecting shaft 133 can limit the movement of the planetary gear 140.

[0032] The drive mechanism 110 includes a drive motor 111 and a reduction gear set 112. The input end of the reduction gear set 112 is connected to the drive motor 111, and the output end of the reduction gear set 112 meshes with the first ring rack 121. The drive motor 111 outputs power to the reduction gear set 112, which increases torque and reduces speed to drive the gear ring 120 to rotate stably via the first ring rack 121. Specifically, both the drive motor 111 and the reduction gear set 112 have damping to prevent the gear ring 120 from rotating under the drive of the planetary gears 140 during manual operation.

[0033] It should be noted that during electric operation, the limit mechanism 170 is connected to the planetary carrier 130, preventing the planetary carrier 130 from rotating around its axis. At this time, the drive motor 111 starts, driving the gear ring 120 to rotate via the engagement of the reduction gear set 112 and the first annular rack 121. This, in turn, drives the multiple planetary gears 140 to rotate. Since the planetary carrier 130 remains stationary, the planetary gears 140 can only rotate on their own axes and cannot revolve around the sun gear 151. During their rotation, the planetary gears 140 synchronously drive the sun gear 151 to rotate, which in turn drives the drive frame 160 to rotate via the main shaft 150, thereby causing the opening and closing device 200 to open or close. In this way, during electric operation, the planetary carrier 130 remains stationary, reducing the frictional resistance of the planetary carrier 130 relative to the main shaft 150 and lowering energy consumption.

[0034] During manual operation, the limit mechanism 170 is not connected to the planetary carrier 130, allowing the planetary carrier 130 to rotate around its axis. At this time, the main shaft 150 rotates around its axis under the influence of the handle, driving multiple planetary gears 140 to rotate via the sun gear 151. Because both the drive motor 111 and the reduction gear set 112 have damping, the ring gear 120 does not rotate. The multiple planetary gears 140 revolve around the sun gear 151 while rotating on their own axes, simultaneously driving the planetary carrier 130 to rotate relative to the main shaft 150. During this process, the main shaft 150 directly drives the drive frame 160 to rotate, thereby actuating the opening and closing device 200 to open or close the circuit breaker. In this way, during manual operation, the drive motor 111, reduction gear set 112, and ring gear 120 remain stationary, reducing the frictional resistance of their relative rotation, thus saving effort and improving the operating feel.

[0035] Optionally, the limiting mechanism 170 includes a limiting rod 171. An extension ring 134 extends axially from the first frame 131 along the main shaft 150. The extension ring 134 is sleeved outside the main shaft 150 and has a positioning hole 135. The limiting rod 171 is used to extend into or retract from the positioning hole 135 to lock and unlock the first frame 131. Specifically, when the limiting rod 171 extends into the positioning hole 135, the extension ring 134 cannot rotate around its axis, thus locking the first frame 131 and consequently locking the planetary carrier 130. When the limiting rod 171 retracts from the positioning hole 135, the extension ring 134 can rotate around its axis, thus unlocking the first frame 131 and consequently unlocking the planetary carrier 130.

[0036] In this embodiment, the positioning hole 135 is arranged radially along the extension ring 134, that is, the positioning hole 135 is opened on the circumferential surface of the extension ring 134. However, it is not limited to this. In other embodiments, the positioning hole 135 may also be arranged axially along the extension ring 134 or in other directions. The opening direction of the positioning hole 135 is not specifically limited.

[0037] Furthermore, the limiting mechanism 170 also includes an actuating block 172 and a spring 173. The limiting rod 171 includes a positioning section 174, a mating section 175, and an extension section 176 arranged sequentially along its axial direction. In this embodiment, the positioning section 174, the mating section 175, and the extension section 176 are integrally formed to improve the connection strength. A first limiting ring 177 is provided between the positioning section 174 and the mating section 175, and a second limiting ring 178 is provided between the mating section 175 and the extension section 176. The actuating block 172 is slidably engaged with the mating section 175. The spring 173 is sleeved outside the mating section 175, with one end of the spring 173 abutting against the first limiting ring 177 and the other end abutting against the actuating block 172. The positioning section 174 is used to engage with the positioning hole 135, and the positioning section 174 can extend into or retract from the positioning hole 135. The second limiting ring 178 is used to stop the actuating block 172, and the actuating block 172 can drive the limiting rod 171 to retract out of the positioning hole 135 through the second limiting ring 178.

[0038] Specifically, during the locking process of the first frame 131, the actuating block 172 is first controlled to move towards the first frame 131. During this process, the actuating block 172 slides relative to the mating section 175 and compresses the spring 173. The spring 173 applies pressure to the first limiting ring 177, thereby driving the entire limiting rod 171 to move towards the first frame 131 until the positioning section 174 abuts against the outer circumferential surface of the extension ring 134. Then, the first frame 131 is controlled to rotate until the positioning hole 135 of the extension ring 134 moves to a position aligned with the positioning section 174. At this time, the first limiting ring 177 moves towards the extension ring 134 under the elastic force of the spring 173, and drives the positioning section 174 to extend into the positioning hole 135, thus completing the locking function of the first frame 131.

[0039] During the process of unlocking the first frame 131, the toggle block 172 is first controlled to move away from the first frame 131. During this process, the toggle block 172 slides relative to the mating section 175 and releases the spring 173. After the toggle block 172 abuts against the second limiting ring 178, the toggle block 172 is controlled to move away from the first frame 131, so that the second limiting ring 178 drives the entire limiting rod 171 to move away from the first frame 131, so that the positioning section 174 retracts out of the positioning hole 135, thus completing the unlocking function of the first frame 131.

[0040] Optionally, the clutch device 100 also includes a micro switch (not shown). The actuating block 172 is connected to the micro switch, which is electrically connected to the drive mechanism 110. The micro switch controls the drive mechanism 110 to be energized when the actuating block 172 drives the limit rod 171 into the positioning hole 135, so that the drive mechanism 110 can be started subsequently. In this way, the drive mechanism 110 is only energized when the limit rod 171 is inserted into the positioning hole 135 (when the first frame 131 is locked), allowing for electric operation and ensuring the reliability of the clutch function.

[0041] This utility model embodiment also provides a rotary disconnector 10, including a switching device 200 and the aforementioned clutch device 100. A drive frame 160 is connected to the switching device 200 to drive the switching device 200 to open or close the circuit. Since the structure and beneficial effects of the clutch device 100 have been described in detail in the foregoing embodiments, they will not be repeated here.

[0042] The above are merely optional embodiments of this utility model and are not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A clutch device, characterized in that, The device includes a drive mechanism, a gear ring, a planetary carrier, planetary gears, a main shaft, a drive frame, and a limiting mechanism. A first annular rack is provided on the outer side of the gear ring, and a second annular rack is provided on the inner side of the gear ring. The main shaft is provided with a sun gear. The drive mechanism engages with the first annular rack. The planetary carrier is rotatably fitted outside the main shaft and disposed within the gear ring. The planetary gears are rotatably mounted on the planetary carrier and mesh with both the sun gear and the second annular rack. The main shaft is connected to the drive frame and is used to connect to a handle. The limiting mechanism is selectively connected to the planetary carrier. The planetary carrier is used to stop rotating when the limiting mechanism is connected to it, so that the drive mechanism can drive the drive carrier to rotate through the gear ring, the planetary gears and the main shaft to achieve electric operation; the planetary carrier is also used to rotate under the drive of the main shaft when the limiting mechanism is not connected to it, while the main shaft drives the drive carrier to rotate to achieve manual operation.

2. The clutch device according to claim 1, characterized in that, The drive mechanism has damping to prevent the gear ring from rotating under the drive of the planetary gears when operated manually.

3. The clutch device according to claim 1, characterized in that, The planetary carrier includes a first frame and a second frame, which are connected and rotatably mounted on the main shaft. The planetary gears are rotatably disposed between the first frame and the second frame. The first frame is disposed on the side of the second frame away from the drive frame. The limiting mechanism is selectively connected to the first frame.

4. The clutch device according to claim 3, characterized in that, The number of planetary gears is multiple, and the multiple planetary gears are arranged in a ring array and can be rotatably disposed between the first frame and the second frame. The sun gear is disposed between the multiple planetary gears and meshes with the multiple planetary gears simultaneously. The gear ring surrounds the multiple planetary gears, and the multiple planetary gears mesh with the second ring rack.

5. The clutch device according to claim 4, characterized in that, The planetary carrier also includes multiple connecting shafts. The first carrier is connected to the second carrier through the multiple connecting shafts, and each planetary gear is rotatably fitted onto one of the connecting shafts.

6. The clutch device according to claim 3, characterized in that, The limiting mechanism includes a limiting rod, and the first frame is provided with an extension ring extending along the axial direction of the main shaft. The extension ring has a positioning hole, and the limiting rod is used to extend into or retract from the positioning hole.

7. The clutch device according to claim 6, characterized in that, The limiting mechanism further includes a toggle block and a spring. The limiting rod includes a positioning section, a mating section, and an extension section arranged sequentially along its axial direction. A first limiting ring is provided between the positioning section and the mating section, and a second limiting ring is provided between the mating section and the extension section. The toggle block slides with the mating section. The spring is sleeved outside the mating section. One end of the spring abuts against the first limiting ring, and the other end abuts against the toggle block. The positioning section is used to mate with the positioning hole, and the second limiting ring is used to stop the toggle block.

8. The clutch device according to claim 7, characterized in that, The clutch device also includes a micro switch, the toggle block is connected to the micro switch, the micro switch is electrically connected to the drive mechanism, and the micro switch is used to control the drive mechanism to be energized when the toggle block drives the limit rod to retract out of the positioning hole.

9. The clutch device according to claim 1, characterized in that, The drive mechanism includes a drive motor and a reduction gear set. The input end of the reduction gear set is connected to the drive motor, and the output end of the reduction gear set meshes with the first annular rack.

10. A rotary disconnect switch, characterized in that, Includes the clutch device as described in any one of claims 1-9.

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