Electric operating mechanism with clutch control

Abstract

The application relates to an electric operating mechanism controlled by a clutch, which comprises a casing, a motor arranged in the casing, an execution shaft connected with an execution component and rotatably connected with the casing, a driving shaft rotatably connected with the casing, a transmission assembly for transmission connection between an output shaft of the motor and the driving shaft, a driving gear sleeved on the outer surface of the driving shaft, a driven gear rotatably sleeved on the outer surface of the execution shaft and engaged with the driving gear, a clutch assembly arranged in the casing, a trigger plate sleeved on the outer surface of the execution shaft, a micro switch one for controlling the forward rotation of the motor and a micro switch two for controlling the reverse rotation of the motor. The electric operating mechanism can be adapted to the use scene requiring frequent opening and closing of a switch.

Description

Technical Field

[0001] This application relates to the field of electric operating technology, and in particular to an electric operating mechanism for clutch control. Background Technology

[0002] Electric operating mechanisms are important components in electrical switchgear used to drive circuit breakers, load switches and other switching devices to complete opening and closing operations. Their function is to convert the rotational motion of the motor into the mechanical action required by the switch operating mechanism, thereby realizing remote or automatic opening and closing operations of the switch.

[0003] In existing technologies, common electric operating mechanisms typically employ a structure where the motor and output shaft are continuously connected by a transmission, with the motor connected to the output shaft via a reduction gear. During the closing operation, the motor rotates forward, driving the output shaft to rotate in the closing direction. When the output shaft reaches the closing position, a limit switch detects the stop signal, and the control circuit cuts off the motor power, stopping the output shaft at the closing position. During the opening operation, the motor reverses, the output shaft rotates in the opposite direction to the opening position, and then the limit switch cuts off the motor power.

[0004] However, for operating conditions requiring frequent opening and closing operations, such as high-voltage circuits used for frequent switching or switchgear requiring repeated opening and closing tests, the existing electric operating mechanisms have significant shortcomings: On the one hand, the motor needs to directly drive the load from a stationary state to start each operation, resulting in a large starting current. When the motor is closed or opened and de-energized, it is often in a near-locked state or under a large load. Frequent operation will cause the motor to overheat severely, affecting its service life. On the other hand, before the motor reverses and resets for the next operation, it needs to perform a preparatory adjustment. However, the existing motor still maintains a transmission connection with the output shaft. The adjustment action of the motor transmitted to the output shaft will interfere with the already closed or opened state, resulting in insufficient stability of the opening and closing states.

[0005] Therefore, existing electric operating mechanisms are difficult to adapt to usage scenarios that require frequent opening and closing of circuit breakers, and have obvious shortcomings. Summary of the Invention

[0006] To adapt to application scenarios that require frequent opening and closing of the circuit breaker, this application provides an electric operating mechanism for clutch control.

[0007] The electric operating mechanism for clutch control provided in this application adopts the following technical solution: An electric operating mechanism controlled by a clutch includes a housing, a motor disposed inside the housing, an actuator shaft rotatably connected to the housing and connected to an actuator component, a drive shaft rotatably connected inside the housing, an output shaft of the motor being connected to the drive shaft via a transmission assembly, a drive gear being sleeved on the outer surface of the drive shaft, and a driven gear meshing with the drive gear being rotatably sleeved on the outer surface of the actuator shaft. The housing is equipped with a clutch assembly. During the closing and opening drive strokes, the clutch assembly engages the driven gear with the actuator shaft. During the reset strokes after closing and opening, the clutch assembly disengages the driven gear from the actuator shaft. A trigger plate is sleeved on the outer surface of the actuator shaft. A micro switch one for controlling the forward rotation of the motor and a micro switch two for controlling the reverse rotation of the motor are provided inside the housing. The trigger plate triggers the micro switch one in the open position and triggers the micro switch two in the closed position.

[0008] By adopting the above technical solution, when closing the circuit breaker, the motor drives the drive shaft to rotate forward through the transmission component, and the drive shaft drives the driven gear to rotate through the drive gear. At this time, the clutch component engages the driven gear with the actuator shaft, and the driven gear rotates and drives the actuator shaft to perform the closing operation. After the closing operation is completed, the trigger plate abuts against the micro switch two, controlling the motor to stop rotating forward and enter the reverse reset. During the reset stroke after the circuit is closed, the clutch assembly separates the driven gear from the actuator shaft. The driven gear rotates freely relative to the actuator shaft without driving the actuator shaft to rotate, and the actuator shaft remains in the closed state. When the circuit breaker is opened, the motor continues to reverse, and the drive gear drives the driven gear to rotate in the opposite direction. The clutch assembly engages the driven gear with the actuator shaft again, and the driven gear drives the actuator shaft to perform the opening operation. After the circuit breaker is opened, the trigger plate abuts against the micro switch one, controlling the motor to stop reversing and enter forward rotation reset. During the reset stroke after the circuit breaker is fully open, the clutch assembly once again separates the driven gear from the actuator shaft. The driven gear idles while the actuator shaft remains in the open state. The clutch assembly and trigger plate reset to their initial state, thus completing one full circuit breaker cycle.

[0009] In the above process, the clutch assembly only engages the driven gear with the actuator shaft during the drive phase, and disengages them during the reset phase after the circuit breaker has closed or opened. Therefore, the motor does not rotate the actuator shaft during reset, preventing the motor's adjustment actions from interfering with the already closed or opened state, thus improving the stability of maintaining the closed or opened state. Simultaneously, during the reset phase, the motor only needs to drive the driven gear and other transmission components to idle, resulting in a smaller load, which helps reduce motor stalling and heat generation, extending the motor's service life. Therefore, this electric operating mechanism can adapt to application scenarios requiring frequent closing and opening, meeting the reliability requirements under high-voltage and frequent start-stop conditions.

[0010] Optionally, the transmission assembly includes a first transmission shaft, a second transmission shaft, and a third transmission shaft rotatably connected within the housing. The first transmission shaft is connected to the motor output shaft via a first gear set, the second transmission shaft is connected to the first transmission shaft via a second gear set, the third transmission shaft is connected to the second transmission shaft via a third gear set, and the drive shaft is connected to the third transmission shaft via a fourth gear set.

[0011] By adopting the above technical solution, after the motor starts, the first transmission shaft is driven to rotate through the first gear set. The first transmission shaft drives the second transmission shaft to rotate through the second gear set. The second transmission shaft drives the third transmission shaft to rotate through the third gear set. The third transmission shaft drives the drive shaft to rotate through the fourth gear set. In this way, the drive shaft is rotated. Through multiple gear sets, speed reduction and torque increase are completed, converting the higher speed and lower torque output by the motor into the lower speed and higher torque of the drive shaft. This allows the drive shaft to stably drive the actuator shaft through the driven gear to complete the closing and opening operations.

[0012] Optionally, the clutch assembly includes two driving blocks fixedly disposed on the end face of the driven gear. The two driving blocks are spaced apart circumferentially along the driven gear. A driven ring is fixedly sleeved on the outer surface of the actuator shaft. Two driven blocks are fixedly disposed on the driven ring. The two driving blocks and the two driven blocks are staggered circumferentially. In the initial state, the driving blocks are close to the driven blocks on the same side, and a circumferential interval is left between the driving blocks and the driven blocks on the opposite side. During the closing drive stroke and the opening drive stroke, the active block moves toward the nearby driven block, and the active block abuts against the corresponding driven block; During the reset stroke after closing and opening, the driving block moves along the circumferential interval toward the driven block on the opposite side, and the driven gear idles.

[0013] By adopting the above technical solution, during the closing or opening drive stroke, the driving block moves toward the nearby driven block and abuts against the corresponding driven block, thereby transmitting power to the actuator shaft and driving the actuator shaft to rotate to complete the closing or opening operation; during the reset stroke after closing and opening, the driving block moves toward the driven block on the opposite side. Since there is a free-spinning range between the driving block and the driven block on the opposite side, the driving block spins freely in the free-spinning range and will not abut against the driven block on the opposite side. The driven gear does not drive the actuator shaft to rotate, thus realizing the automatic engagement and disengagement function of the clutch assembly, keeping the actuator shaft unchanged during the reset phase, and improving the stability of the closing and opening states.

[0014] Optionally, a micro switch three is provided inside the housing. The micro switch three controls the motor speed to decrease through the control system. One of the driving blocks is provided with a protrusion. Before the driving block pushes against the driven block, the protrusion touches the micro switch three.

[0015] By adopting the above technical solution, during the closing or opening drive stroke, the driving block moves toward the corresponding driven block. When the protrusion on the driving block touches the micro switch three, the control system controls the motor to reduce its speed, so that the driving block approaches and abuts the corresponding driven block at a lower speed, and then pushes the driven block to drive the actuator shaft to move. This reduces the possibility of impact and collision wear when the driving block and the driven block come into contact, improves the smoothness of the clutch assembly when it engages, reduces noise, and extends the service life of the clutch assembly and transmission components.

[0016] Optionally, the trigger plate is cam-shaped and has two protrusions along the radial direction of the actuation shaft. The two protrusions are used to trigger either micro switch one or micro switch two.

[0017] By adopting the above technical solution, the trigger plate adopts a cam-shaped structure and has two protrusions in the radial direction of the actuator shaft. When the trigger plate rotates with the actuator shaft to the closed or open position, the corresponding protrusions can accurately touch micro switch two or micro switch one, so that the micro switch can operate reliably.

[0018] Optionally, the trigger plate is provided with an indicator groove, and the housing is provided with a positioning groove corresponding to the position of the indicator groove. When the indicator groove is aligned with the positioning groove, the trigger plate abuts against the micro switch.

[0019] By adopting the above technical solution, during assembly or debugging, operators can quickly determine whether the trigger plate has accurately contacted the micro switch by observing whether the indicator slot on the trigger plate is aligned with the positioning slot on the housing. This facilitates the calibration of the relative installation positions of the trigger plate and the micro switch, reduces the risk of inaccurate micro switch triggering position due to assembly deviation, and improves assembly efficiency and motion control reliability.

[0020] Optionally, the micro switch one, the micro switch two, and the micro switch three are all detachably mounted on the housing via connecting bolts.

[0021] By adopting the above technical solution, when a micro switch malfunctions or becomes unresponsive, it can be removed individually for inspection or replacement using the connecting bolts, without having to replace the entire electric operating mechanism, thus reducing maintenance costs and repair difficulty.

[0022] In summary, this application includes at least one of the following beneficial technical effects: This application incorporates a clutch assembly that engages the driven gear with the actuator shaft only during the driving phase, and disengages them during the reset phase after the circuit breaker has closed or opened. Therefore, the motor does not rotate the actuator shaft during reset, preventing the motor's adjustment actions from interfering with the already closed or opened state and improving the stability of the closed / open state. Simultaneously, during the reset phase, the motor only needs to idle some transmission components such as the driven gear, resulting in a smaller load, which helps reduce motor stall and heat generation, extending the motor's service life. This application achieves speed reduction and torque increase by setting a transmission component, converting the higher speed and lower torque output of the motor into the lower speed and higher torque of the drive shaft, so that the drive shaft can stably drive the actuator shaft through the driven gear to complete the closing and opening operations; This application incorporates a micro switch three. When the protrusion on the driving block touches the micro switch three, the control system controls the motor to reduce its speed, causing the driving block to approach and abut against the corresponding driven block at a lower speed. Subsequently, the driven block is pushed to drive the actuator shaft. This reduces the possibility of impact and collision wear when the driving block and driven block come into contact, improves the smoothness of the clutch assembly's engagement, reduces noise, and extends the service life of the clutch assembly and transmission components. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this application.

[0024] Figure 2 This is a schematic diagram of the transmission component in an embodiment of this application.

[0025] Figure 3 This is a schematic diagram of the drive gear and driven gear in the embodiments of this application.

[0026] Figure 4 This is an exploded view of the driven gear, driven ring, and trigger plate in an embodiment of this application.

[0027] Figure 5 This is a schematic diagram of the clutch assembly in the closed position in the embodiment of this application.

[0028] Figure 6 This is a schematic diagram of the clutch component in the state of closing and resetting in the embodiment of this application.

[0029] Figure 7 This is a schematic diagram of the clutch assembly in the open position in the embodiment of this application.

[0030] Figure 8 This is a schematic diagram of the clutch assembly in the state of tripping reset in the embodiments of this application.

[0031] Explanation of reference numerals in the attached drawings: 1. Housing; 101. Motor; 102. Microswitch 1; 103. Microswitch 2; 104. Microswitch 3; 105. Positioning groove; 106. Connecting bolt; 2. Actuating shaft; 21. Driven gear; 3. Drive shaft; 31. Drive gear; 4. Transmission assembly; 41. First transmission shaft; 42. Second transmission shaft; 43. Third transmission shaft; 44. First gear set; 45. Second gear set; 46. Third gear set; 47. Fourth gear set; 5. Clutch assembly; 51. Driving block; 511. Protrusion; 52. Driven ring; 53. Driven block; 6. Trigger plate; 61. Protrusion; 62. Indicator groove. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0033] This application discloses an electric operating mechanism for clutch control.

[0034] Reference Figure 1 and Figure 2 An electric operating mechanism for clutch control includes a housing 1, a motor 101 fixedly installed inside the housing 1, an actuator 2 rotatably connected to the housing 1, the actuator 2 being used to connect to external actuators and output torque, a drive shaft 3 rotatably connected inside the housing 1, the drive shaft 3 being arranged parallel to the actuator 2, the output shaft of the motor 101 being connected to the drive shaft 3 via a transmission assembly 4, when the actuator 2 rotates in the forward direction, a closing operation is performed, and when the actuator 2 rotates in the reverse direction, a opening operation is performed.

[0035] Reference Figure 1 and Figure 2The transmission assembly 4 includes a first transmission shaft 41, a second transmission shaft 42, and a third transmission shaft 43 rotatably connected within the housing 1. The first transmission shaft 41 is connected to the output shaft of the motor 101 via a first gear set 44. The second transmission shaft 42 is connected to the first transmission shaft 41 via a second gear set 45. The third transmission shaft 43 is connected to the second transmission shaft 42 via a third gear set 46. The drive shaft 3 is connected to the third transmission shaft 43 via a fourth gear set 47. The first gear set 44, the second gear set 45, the third gear set 46, and the fourth gear set 47 can all be meshing spur gears or helical gears, and the transmission ratio of each gear set is set according to the required output speed and torque.

[0036] After the motor 101 starts, it drives the first transmission shaft 41 to rotate through the first gear set 44. The first transmission shaft 41 drives the second transmission shaft 42 to rotate through the second gear set 45. The second transmission shaft 42 drives the third transmission shaft 43 to rotate through the third gear set 46. The third transmission shaft 43 drives the drive shaft 3 to rotate through the fourth gear set 47. Through multiple gear sets, speed reduction and torque increase are completed, converting the higher speed and lower torque output by the motor 101 into the lower speed and higher torque of the drive shaft 3. This enables the drive shaft 3 to stably drive the actuator shaft 2 to complete the closing and opening operations through the driven gear 21.

[0037] Reference Figure 2 and Figure 3 A drive gear 31 is fixedly sleeved on the outer surface of the drive shaft 3, and a driven gear 21 that meshes with the drive gear 31 is rotatably sleeved on the outer surface of the execution shaft 2. The driven gear 21 can rotate relative to the execution shaft 2, but cannot directly drive the execution shaft 2 to rotate. A clutch assembly 5 is provided between the driven gear 21 and the execution shaft 2.

[0038] Reference Figure 3 and Figure 4 The clutch assembly 5 includes two driving blocks 51 fixedly connected to the driven gear 21 facing the end face of the actuating shaft 2. The two driving blocks 51 are arranged circumferentially between the driven gear 21. A driven ring 52 is fixedly sleeved on the outer surface of the actuating shaft 2. Two driven blocks 53 are fixedly connected to the outer surface of the driven ring 52. The two driving blocks 51 and the two driven blocks 53 are arranged circumferentially. In the initial state, the driving block 51 is close to the driven block 53 on the same side. There is a circumferential interval between the driving block 51 and the driven block 53 on the opposite side. The arc length of the circumferential interval is greater than the circumferential width of the driving block 51. During the closing drive stroke and the opening drive stroke, the driving block 51 moves toward the nearby driven block 53, and the driving block 51 abuts against the corresponding driven block 53; During the reset stroke after closing and opening, the driving block 51 moves along the circumferential interval toward the driven block 53 on the opposite side, and the driven gear 21 idles.

[0039] Reference Figure 3 and Figure 4 A trigger plate 6 is fixedly sleeved on the outer surface of the actuator shaft 2. The trigger plate 6 is cam-shaped and has two protrusions 511 along the radial direction of the actuator shaft 2. The two protrusions 511 correspond to the closed position and the open position, respectively. The trigger plate 6 rotates synchronously with the actuator shaft 2. Micro switch 102 and micro switch 103 are installed inside the housing 1. Micro switch 102 is used to control the motor 101 to rotate in reverse, and micro switch 103 is used to control the motor 101 to rotate in forward.

[0040] When the trigger plate 6 rotates with the actuator shaft 2 to the closed position, one of the protrusions 511 touches the second micro switch 103; when the trigger plate 6 rotates with the actuator shaft 2 to the open position, the other protrusion 511 touches the first micro switch 102. By triggering different micro switches with the two protrusions 511 respectively, the trigger plate 6 can avoid accidentally touching the micro switch in the middle position, ensuring the accuracy of the position signal.

[0041] Reference Figure 3 and Figure 4 Inside the housing 1, a micro switch 3 104 is also installed. The micro switch 3 104 controls the speed of the motor 101 to decrease through the control system. One of the active blocks 51 is provided with a protrusion 511. Before the active block 51 pushes against the driven block 53, the protrusion 511 touches the micro switch 3 104 first, so that the control system controls the motor 101 to reduce the speed, thereby reducing the impact when the active block 51 and the driven block 53 come into contact.

[0042] Reference Figure 3 and Figure 5 During the closing drive phase, the motor 101 rotates forward and drives the drive shaft 3 and driven gear 21 to rotate forward by 100.27° through the transmission assembly 4. The driving block 51 on the driven gear 21 moves toward the adjacent driven block 53 and abuts against the driven block 53. At this time, the clutch assembly 5 is in the transmission engagement state. The driven gear 21 drives the driven ring 52 and the actuator shaft 2 to rotate synchronously through the driving block 51 and the driven block 53. The actuator shaft 2 drives the external actuator to complete the closing action. When the actuator shaft 2 reaches the closing position, the protrusion 511 of the trigger plate 6 touches the micro switch 103. The micro switch 103 sends a position signal, and the control system controls the motor 101 to stop rotating forward and enter the reverse reset state. Reference Figure 3 and Figure 6During the reset stroke after the circuit is closed, the motor 101 reverses, the drive shaft 3 drives the drive gear 31 to reverse, and the driven gear 21 reverses accordingly. The driving block 51 separates from the corresponding driven block 53, and the driving block 51 moves along the circumferential interval toward the driven block 53 on the opposite side. At this time, the driven gear 21 idles relative to the actuator shaft 2 and does not drive the actuator shaft 2 to rotate. The actuator shaft 2 remains in the closed position until the driving block 51 moves to the point where the protrusion 511 abuts against the micro switch 104. At this time, the speed of the motor 101 decreases, and it is ready to start the opening process. Reference Figure 3 and Figure 7 During the tripping drive phase, the motor 101 continues to reverse, the driven gear 21 continues to rotate, the driving block 51 continues to move along the circumferential interval and abuts against the driven block 53 on the opposite side, the clutch assembly 5 re-enters the transmission engagement state, the driven gear 21 pushes the driven block 53 through the driving block 51, causing the actuator 2 to rotate 100.27° in the opposite direction, the actuator 2 drives the external actuator to complete the tripping action, when the actuator 2 reaches the tripping position, another protrusion 511 of the trigger plate 6 touches the micro switch 102, the micro switch 102 sends a position signal, the control system controls the motor 101 to stop reversing and enter the forward rotation reset state; Reference Figure 3 and Figure 8 During the reset stroke after the circuit breaker is fully open, motor 101 rotates forward, driven gear 21 rotates forward, and driving block 51 separates from driven block 53 on the opposite side. Driving block 51 moves along the circumferential interval toward the initial position. At this time, driven gear 21 rotates freely relative to actuator shaft 2, and actuator shaft 2 remains in the open position. When driving block 51 returns to the initial position and approaches driven block 53 on the same side, motor 101 stops rotating forward. Clutch assembly 5 returns to its initial disengaged state, and trigger plate 6 also resets accordingly.

[0043] The aforementioned closing drive, closing reset, opening drive, and opening reset constitute a complete closing and opening cycle. During the closing reset and opening reset phases, the clutch assembly 5 separates the driven gear 21 from the actuator shaft 2. The motor 101 only needs to drive the transmission assembly 4 and the driven gear 21 to idle, without needing to drive the actuator shaft 2. Therefore, the reset process does not interfere with the already established closing or opening state, improving the stability of the state maintenance. At the same time, the motor 101 has a smaller load, reducing stalling and heat generation, and extending the service life of the motor 101. During the closing or opening drive phase, the protrusion 511 on the drive block 51 first touches the micro switch 104, causing the motor 101 to reduce its speed before abutting the corresponding driven block 53. The impact when the drive block 51 contacts the driven block 53 is small, the operation is smooth, and collision wear and noise are reduced.

[0044] Reference Figure 1 and Figure 2The trigger plate 6 is also provided with an indicator groove 62, and the housing 1 is provided with a positioning groove 105 corresponding to the position of the indicator groove 62. During assembly or debugging, the indicator groove 62 is aligned with the positioning groove 105. At this time, the trigger plate 6 abuts against the micro switch 102, indicating that the actuator shaft 2 is in the open position. This facilitates the calibration of the relative installation position of the trigger plate 6 and the micro switch, ensuring assembly consistency and the accuracy of the positioning signal.

[0045] Reference Figure 1 and Figure 2 Microswitches 102, 103, and 104 are all detachably mounted on housing 1 via connecting bolts 106. When any microswitch malfunctions or needs replacement, the connecting bolts 106 can be loosened to remove it individually for inspection or replacement, without disassembling the entire electric operating mechanism, thus reducing maintenance costs and repair difficulty.

[0046] The implementation principle of the clutch-controlled electric operating mechanism in this application embodiment is as follows: When closing the circuit, the motor 101 drives the drive shaft 3 to rotate forward through the transmission assembly 4, and the drive shaft 3 drives the driven gear 21 to rotate through the drive gear 31. At this time, the clutch assembly 5 makes the driven gear 21 engage with the actuator shaft 2. The driven gear 21 rotates and drives the actuator shaft 2 to perform the closing operation. After the closing is completed, the trigger plate 6 abuts against the micro switch 103, controlling the motor 101 to stop rotating forward and enter the reverse reset. During the reset stroke after the circuit is closed, the clutch assembly 5 causes the driven gear 21 to be disengaged from the actuator shaft 2. The driven gear 21 rotates freely relative to the actuator shaft 2 and does not drive the actuator shaft 2 to rotate. The actuator shaft 2 remains in the closed state. When the circuit breaker is opened, the motor 101 continues to reverse, and the drive gear 31 drives the driven gear 21 to rotate in the opposite direction. The clutch assembly 5 once again engages the driven gear 21 with the actuator shaft 2. The driven gear 21 drives the actuator shaft 2 to perform the circuit breaker opening operation. After the circuit breaker is opened, the trigger plate 6 abuts against the micro switch 102, controlling the motor 101 to stop reversing and enter forward rotation reset. During the reset stroke after the circuit breaker is fully open, the clutch assembly 5 once again separates the driven gear 21 from the actuator shaft 2. The driven gear 21 rotates freely, and the actuator shaft 2 remains in the open state. The clutch assembly 5 and the trigger plate 6 are reset to their initial state, thus completing a full circuit breaker cycle.

[0047] In the above process, the clutch assembly 5 only engages the driven gear 21 with the actuator shaft 2 during the driving phase, and disengages them during the reset phase after the circuit breaker has closed or opened. Therefore, the motor 101 will not drive the actuator shaft 2 to rotate during reset, avoiding interference from the motor 101's adjustment action with the already closed or opened state, thus improving the stability of maintaining the closed or opened state. At the same time, during the reset phase, the motor 101 only needs to drive the driven gear 21 and other transmission components to idle, resulting in a smaller load, which helps reduce motor 101 stalling and overheating, and extends the service life of the motor 101. Therefore, this electric operating mechanism can adapt to application scenarios requiring frequent closing and opening, and meets the reliability requirements under high-voltage and frequent start-stop conditions.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A clutch-controlled electric operating mechanism, comprising a housing (1), wherein a motor (101) is disposed inside the housing (1), and an actuating shaft (2) rotatably connected to the housing (1) and connected to an actuating component, characterized in that, The housing (1) is rotatably connected to a drive shaft (3). The output shaft of the motor (101) is connected to the drive shaft (3) via a transmission assembly (4). A drive gear (31) is sleeved on the outer surface of the drive shaft (3). A driven gear (21) that meshes with the drive gear (31) is rotatably sleeved on the outer surface of the execution shaft (2). The housing (1) is provided with a clutch assembly (5). During the closing and opening drive strokes, the clutch assembly (5) causes the driven gear (21) to engage with the actuating shaft (2). During the reset stroke after closing and opening, the clutch assembly (5) causes the driven gear (21) to disengage from the actuating shaft (2). The outer surface of the actuator shaft (2) is fitted with a trigger plate (6). The housing (1) is provided with a micro switch one (102) for controlling the forward rotation of the motor (101) and a micro switch two (103) for controlling the reverse rotation of the motor (101). The trigger plate (6) triggers the micro switch one (102) in the open position and triggers the micro switch two (103) in the closed position.

2. The clutch-controlled electric operating mechanism according to claim 1, characterized in that, The transmission assembly (4) includes a first transmission shaft (41), a second transmission shaft (42), and a third transmission shaft (43) rotatably connected within the housing (1). The first transmission shaft (41) is connected to the output shaft of the motor (101) via a first gear set (44). The second transmission shaft (42) is connected to the first transmission shaft (41) via a second gear set (45). The third transmission shaft (43) is connected to the second transmission shaft (42) via a third gear set (46). The drive shaft (3) is connected to the third transmission shaft (43) via a fourth gear set (47).

3. The clutch-controlled electric operating mechanism according to claim 1, characterized in that, The clutch assembly (5) includes two driving blocks (51) fixedly disposed on the end face of the driven gear (21). The two driving blocks (51) are arranged circumferentially spaced along the driven gear (21). A driven ring (52) is fixedly sleeved on the outer surface of the actuating shaft (2). Two driven blocks (53) are fixedly disposed on the driven ring (52). The two driving blocks (51) and the two driven blocks (53) are arranged circumferentially staggered. In the initial state, the driving block (51) is close to the driven block (53) on the same side, and a circumferential interval is left between the driving block (51) and the driven block (53) on the opposite side. During the closing drive stroke and the opening drive stroke, the active block (51) moves toward the nearby driven block (53), and the active block (51) abuts against the corresponding driven block (53); During the reset stroke after closing and opening, the driving block (51) moves along the circumferential interval toward the driven block (53) on the opposite side, and the driven gear (21) idles.

4. The electrically operated clutch control mechanism according to claim 3, characterized in that, The housing (1) is provided with a micro switch three (104). The micro switch three (104) controls the speed of the motor (101) to decrease through the control system. One of the active blocks (51) is provided with a protrusion (511). Before the active block (51) pushes against the driven block (53), the protrusion (511) touches the micro switch three (104).

5. The clutch-controlled electric operating mechanism according to claim 1, characterized in that, The trigger plate (6) is cam-shaped and has two protrusions (511) in the radial direction of the actuation shaft (2). The two protrusions (511) are used to trigger the micro switch one (102) or the micro switch two (103).

6. The clutch-controlled electric operating mechanism according to claim 1, characterized in that, The trigger plate (6) is provided with an indicator groove (62), and the housing (1) is provided with a positioning groove (105) corresponding to the position of the indicator groove (62). When the indicator groove (62) is aligned with the positioning groove (105), the trigger plate (6) abuts against the micro switch (102).

7. The clutch-controlled electric operating mechanism according to claim 4, characterized in that, The micro switch one (102), the micro switch two (103) and the micro switch three (104) are all detachably mounted on the housing (1) by connecting bolts (106).

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