A clutch device and electric pressure plate using the same

Abstract

A clutch device includes a clutch shaft and a transmission shaft. The clutch shaft is used to be axially fixedly connected to the pressure plate handle of the electric pressure plate, and the transmission shaft is used to be axially fixedly connected to the output shaft of the motor of the electric pressure plate. The clutch shaft and the transmission shaft are axially movable and clamped. The end of the clutch shaft facing the transmission shaft is provided with a clutch groove, and the end of the transmission shaft facing the clutch shaft is provided with a slider. The slider is slidably assembled in the clutch groove, and one side end of the slider is in contact with one of the inner side walls of the clutch groove, and there is a travel groove used for non-transmission operation of the slider between the other side end of the slider and the other inner side wall of the clutch groove. The clutch groove is opened in a circular shape with the center of the clutch shaft as the center of the circle, and the slider runs along the clutch groove, and the slider rotates with the center of the clutch groove as the center. This solution can realize the integration of manual operation and electric operation of the electric pressure plate.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, and in particular to a clutch device and an electric pressure plate using the same. Background Art

[0002] The electric secondary operation circuit is the link between the electric secondary integrated automation equipment and the high-voltage switch operating mechanism. The reliability of the secondary operation circuit directly affects the reliability of the power grid operation. The electric pressure plate used in the secondary operation circuit is an important factor affecting the reliability of the secondary operation circuit. The electric pressure plate is used to connect or disconnect a certain circuit. The throwing and retracting actions of the electric pressure plate are operated by turning the pressure plate handle. The current electric pressure plate is either manually turned by the pressure plate handle or driven by a motor to rotate the pressure plate handle. The manually operated electric pressure plate cannot realize the automation and remote control of the secondary operation circuit. Once a power outage or other power failure occurs, the electric pressure plate cannot turn the pressure plate handle, causing the electric pressure plate to lose control. Therefore, a pressure plate with both electric control and manual control is needed to avoid the inability to control the secondary operation circuit when a power outage or other power failure occurs, but this makes the structure of the secondary operation circuit complicated and the cost increases. Therefore, it is urgent to manufacture an electric pressure plate with both manual and electric operation to solve the above problems. Summary of the invention

[0003] In view of the above-mentioned defects, the purpose of the present invention is to propose a clutch device and an electric pressure plate using the same, so that the electric pressure plate can not only electrically control the throwing and retracting actions of the pressure plate handle, but also manually control the throwing and retracting actions of the pressure plate handle, thereby realizing the integration of manual operation and electric operation of the electric pressure plate.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A clutch device comprises a clutch shaft and a transmission shaft, wherein the clutch shaft is used to be axially fixedly connected to a pressure plate handle of an electric pressure plate, the transmission shaft is used to be axially fixedly connected to an output shaft of a motor of the electric pressure plate, and the clutch shaft and the transmission shaft are axially movably engaged;

[0006] A clutch groove is provided at one end of the clutch shaft facing the transmission shaft, and a slider is provided at one end of the transmission shaft facing the clutch shaft. The slider is slidably assembled in the clutch groove, and one side end of the slider is in contact with one of the inner side walls of the clutch groove, and a travel groove for non-transmission operation of the slider is provided between the other side end of the slider and the other inner side wall of the clutch groove;

[0007] The clutch groove is opened in a circumferential shape with the center of the clutch shaft as the center of the circle, and the slider runs along the clutch groove, and the slider rotates with the center of the clutch groove as the center of the circle.

[0008] Preferably, the shapes of both inner side walls of the clutch groove match the shape of the slider.

[0009] Preferably, the manual rotation angle range of the clutch shaft is the same as the electric rotation angle range of the transmission shaft, and the electric rotation angle range of the transmission shaft is 0° to 45°.

[0010] Preferably, the slider is a semi-cylinder, the clutch groove is in the shape of a 5 / 8 circle matching the slider, the center of the clutch groove is located on the central axis of the clutch shaft, and the center of the slider is located on the central axis of the transmission shaft.

[0011] Preferably, the slider is cylindrical, and the clutch groove is in the shape of an arc-shaped strip groove;

[0012] Alternatively, the slider is cylindrical, and two groups of the sliders and the strip grooves are provided. The two groups of the sliders and the strip grooves are arranged in a mirror-symmetrical manner with respect to the central axis of the clutch shaft.

[0013] An electric pressure plate comprises a pressure plate body and a motor, wherein the pressure plate body is provided with a pressure plate handle, the pressure plate body and the motor are connected via the above-mentioned clutch device, the clutch shaft of the clutch device and the pressure plate handle are axially fixedly connected, the transmission shaft of the clutch device and the output shaft of the motor are axially fixedly connected, and the clutch shaft and the transmission shaft are axially movably engaged.

[0014] Furthermore, the pressing plate body further comprises a pressing plate base, a handle shaft is formed on one side of the pressing plate handle facing the pressing plate base, and the pressing plate base is provided with a handle shaft mounting through hole for rotatably mounting the handle shaft;

[0015] Conductive components are respectively arranged at the front and rear of the pressure plate base, and the openings of the two conductive components are respectively facing the left outer side and the right outer side;

[0016] The pressure plate handle is equipped with a conductive element, and the two ends of the conductive element are respectively located at the front end and the rear end of the pressure plate handle. The pressure plate handle and the pressure plate base are staggered or overlapped in a horizontal rotation manner with the handle shaft as the center. When in the overlapped state, the two ends of the conductive element are respectively stuck in the two conductive components; when in the staggered state, the two ends of the conductive element are not in contact with the two conductive components.

[0017] Furthermore, it also includes a shell, the shell includes a shell body, a pressure plate connecting pipe and a pressure plate connecting plate, the shell body and the pressure plate connecting plate are connected through the pressure plate connecting pipe, and a device installation cavity is provided inside the shell body, and the device installation cavity is connected to the pressure plate connecting pipe;

[0018] The motor and the transmission shaft are arranged in the device installation cavity, the clutch shaft is located in the pressure plate connecting tube, and the pressure plate connecting plate is fixedly connected to the pressure plate base.

[0019] Furthermore, the transmission shaft is formed with a first convex ring along the circumferential direction, and the first convex ring is provided with a first groove along the radial direction;

[0020] The electric pressure plate further includes a position detection sensor, wherein two position detection sensors are provided, the two position detection sensors are relatively mounted in the device mounting cavity of the housing body, and the two position detection sensors are arranged along the radial direction of the first convex ring close to both sides of the first convex ring, and the detection end of the position detection sensor faces the first convex ring;

[0021] When the motor does not rotate, the first groove of the transmission shaft is located on the symmetric axis of the two position detection sensors;

[0022] Or, the transmission shaft is formed with a first convex ring along the circumferential direction, and the first convex ring is provided with a first groove along the radial direction;

[0023] The electric pressure plate further includes a transceiver sensor, the transceiver sensor includes a transmitter and a receiver that are arranged opposite to each other, a plurality of the transceiver sensors are arranged in a ring array with the center of the first convex ring as a reference, and the transmitter and the receiver are respectively located above and below the first convex ring;

[0024] When the first groove rotates through the transceiver sensor, the signal emitted by the transmitting part at the corresponding position passes through the first groove of the receiving part and is received by the corresponding receiving part;

[0025] When the motor does not rotate, the transceiver sensor installed at the corresponding position is in a connected state, and a signal is sent to confirm that the motor has rotated to the desired position.

[0026] Furthermore, the pressure plate body also includes a connecting shaft, one end of the connecting shaft is axially fixedly connected to the handle shaft of the pressure plate handle, and the other end of the connecting shaft is axially fixedly connected to the clutch shaft.

[0027] Beneficial effects of the present invention: The clutch device is applied to the electric pressure plate, so that the electric pressure plate can control the throwing and retracting actions of the pressure plate handle electrically or manually, thereby realizing the integration of manual and electric operations of the electric pressure plate. The clutch shaft and the pressure plate handle in the clutch device are axially fixedly connected, so that the rotation of the clutch shaft will drive the rotation of the pressure plate handle, that is, the throwing and retracting actions of the pressure plate handle are realized by the rotation of the clutch shaft; the transmission shaft and the output shaft of the motor are axially fixedly connected, and one side end of the slider of the motor-driven transmission shaft is always against one of the inner walls of the clutch groove to rotate, that is, the slider and the clutch groove are kept combined, thereby driving the rotation of the clutch shaft, and the motor performs a reset action after each rotation to realize the throwing and retracting actions of the electric control pressure plate handle; there is a stroke groove for non-transmission operation of the slider between the other side end of the slider and the other inner side wall of the clutch groove, so that the clutch groove can rotate relative to the slider, and the clutch shaft is manually rotated toward one inner side wall of the clutch groove until the other inner side wall of the clutch groove and the other side end of the slider are in contact, and a throwing action (or retracting action) is manually completed; then, the clutch shaft is manually rotated in the opposite direction until one inner side wall of the clutch groove and one side end of the slider are in contact, and a retracting action (or throwing action) is manually completed, thereby realizing the throwing and retracting actions of the manual control pressure plate handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of a clutch device according to one embodiment of the present invention;

[0029] Figure 2 This is a diagram showing the clutch device in use according to one embodiment of the present invention;

[0030] Figure 3 It is a schematic diagram of the clutch section structure of one embodiment of the present invention;

[0031] Figure 4 It is a schematic diagram of the structure of the installation section of one embodiment of the present invention;

[0032] Figure 5 is a schematic diagram of the transmission shaft structure of one embodiment of the present invention;

[0033] Figure 6 is a diagram illustrating the electric operation principle of one embodiment of the present invention;

[0034] Figure 7 This is a diagram illustrating the manual operation principle of one embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of an electric pressure plate in one embodiment of the present invention;

[0036] Fig. 9 is a top view of an electric pressure plate according to one embodiment of the present invention;

[0037] Fig.10 It is a schematic diagram of the main structure of the housing of one embodiment of the present invention;

[0038] Fig.11 This is a schematic diagram of the internal structure of an electric pressure plate in one embodiment of the present invention;

[0039] Fig.12 This is a schematic diagram of the connecting shaft structure of one embodiment of the present invention;

[0040] Fig.13 It is a schematic diagram of the anti-rotation cutting groove structure of one embodiment of the present invention;

[0041] Fig.14 This is a schematic diagram of the structure of a pressure plate handle according to one embodiment of the present invention;

[0042] Fig.15 is a top view of an electric pressure plate according to one embodiment of the present invention;

[0043] Fig.16 is a schematic structural diagram of a slider and a clutch groove in a top view of one embodiment of the present invention;

[0044] Fig.17 It is a schematic structural diagram of a slider and a clutch groove from a top view according to another embodiment of the present invention.

[0045] Wherein: clutch shaft 1; clutch groove 11; travel groove 111; mounting hole 12; clutch section 13; mounting section 14; first anti-rotation cut surface 121; transmission shaft 2; slider 21; first convex ring 22; first groove 221; pressure plate body 3; pressure plate handle 31; handle shaft 311; third anti-rotation cut surface 312; first positioning groove 313; second positioning groove 314; conductive sheet 315; pressure plate base 32; connecting shaft 33; second anti-rotation cut surface 331; anti-rotation cut groove 332; fourth anti-rotation cut surface 333; second convex ring 334; connecting through hole 30; ball screw 34; conductive component 35; conductive ring 351; conductive notch 3511; fixing nut 352; wire pressing screw 353; motor 4; output shaft 41 of motor 4; housing 5; housing body 51; device mounting cavity 511; motor positioning column 512; pressure plate connecting tube 52; clutch fixing section 521; shaft connecting section 522; pressure plate connecting plate 53; cover body 54; observation notch 541; position detection sensor 6; motor mounting seat 7; motor positioning hole 71, transceiver sensor A. DETAILED DESCRIPTION

[0046] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0047] The clutch device of this embodiment, such as Figure 1 , Figure 2 As shown, it includes a clutch shaft 1 and a transmission shaft 2, wherein the clutch shaft 1 is used to be axially fixedly connected to the pressure plate handle 31 of the electric pressure plate, and the transmission shaft 2 is used to be axially fixedly connected to the output shaft 41 of the motor 4 of the electric pressure plate, and the clutch shaft 1 and the transmission shaft 2 are axially movable and clamped;

[0048] like Figure 3 As shown, the end of the clutch shaft 1 facing the transmission shaft 2 is provided with a clutch groove 11. Figure 5 As shown, a slider 21 is provided at one end of the transmission shaft 2 facing the clutch shaft 1. The slider 21 is slidably assembled in the clutch groove 11, and one side end of the slider 21 is in contact with one of the inner side walls of the clutch groove 11. Figure 6 , Figure 7 As shown, there is a travel groove for non-transmission operation of the slider 21 between the other side end of the slider 21 and the other inner side wall of the clutch groove 11;

[0049] The clutch groove 11 is opened in a circular shape with the center of the clutch shaft 1 as the center of the circle. The slider 21 runs along the clutch groove 11 , and the slider 21 rotates with the center of the clutch groove 11 as the center of rotation.

[0050] The clutch device is applied to the electric pressure plate, so that the electric pressure plate can control the throwing and retracting action of the pressure plate handle 31 electrically or manually, thereby realizing the integration of manual and electric operation of the electric pressure plate. The clutch shaft 1 and the pressure plate handle 31 in the clutch device are axially fixedly connected, so that the rotation of the clutch shaft 1 will drive the rotation of the pressure plate handle 31, that is, the throwing and retracting action of the pressure plate handle 31 is realized by the rotation of the clutch shaft 1; the transmission shaft 2 and the output shaft 41 of the motor 4 are axially fixedly connected, and the motor 4 drives one side end of the slider 21 of the transmission shaft 2 to always rotate against one of the inner side walls of the clutch groove 11, that is, the slider 21 and the clutch groove 11 are kept combined, thereby driving the rotation of the clutch shaft 1, and the motor 4 performs a reset action after each rotation, thereby realizing the throwing and retracting action of the electric control pressure plate handle 31; the other side of the slider 21 There is a travel groove 111 used for non-transmission operation of the slider 21 between one side end and the other inner wall of the clutch groove 11, so that the clutch groove 11 can rotate relative to the slider 21. The clutch shaft 1 is manually rotated toward one inner wall of the clutch groove 11 until the other inner wall of the clutch groove 11 and the other side end of the slider 21 are in contact, and a throwing action (or retraction action) is manually completed; then, the clutch shaft 1 is manually rotated in the opposite direction until one inner wall of the clutch groove 11 and one side end of the slider 21 are in contact, and a retraction action (or throwing action) is manually completed, thereby realizing manual control of the throwing and retraction actions of the pressure plate handle 31.

[0051] Preferably, the shapes of the two inner side walls of the clutch groove 11 are consistent with the shape of the slider 21. Therefore, when the pressing plate handle 31 is electrically operated, the slider 21 and the clutch groove 11 are always combined to ensure that the transmission shaft 2 drives the clutch shaft 1 to rotate electrically.

[0052] Preferably, the manual rotation angle range of the clutch shaft 1 is the same as the electric rotation angle range of the transmission shaft 2. The manual rotation angle range of the clutch shaft 1 is the rotation angle range of the clutch shaft 1 axially rotated manually, and the electric rotation angle range of the transmission shaft 2 is the rotation angle range of the transmission shaft 2 axially rotated electrically. The size of the stroke groove 111 of the clutch groove 11 is set to make the manual rotation angle range of the clutch shaft 1 and the electric rotation angle range of the transmission shaft 2 the same, thereby ensuring that the pressure plate handle 31 can be rotated electrically or manually, and the pressure plate handle 31 can be accurately rotated to the working position of the injection state and the working position of the retracted state.

[0053] Preferably, the electric rotation angle range of the transmission shaft 2 is 0° to 45°. That is, when the motor 4 drives the transmission shaft 2 to rotate 45°, the pressure plate handle 31 is in the throwing state working position or the retreating state working position; similarly, when the clutch shaft 1 is manually driven to rotate 45°, the pressure plate handle 31 is in the throwing state working position or the retreating state working position.

[0054] Preferably, if Figure 3 , Figure 5 As shown, the slider 21 is a semi-cylinder, the clutch groove 11 is in the shape of a 5 / 8 circle matching the slider 21, the center of the clutch groove 11 is located on the central axis of the clutch shaft 1, and the center of the slider 21 is located on the central axis of the transmission shaft 2.

[0055] The semi-cylindrical slider 21 and the 5 / 8 circular clutch groove 11 cooperate to reduce friction during rotation, making the operation more labor-saving and smooth. Figure 6 , Figure 7 As shown, the specific working process of the clutch device is as follows:

[0056] The original state is defined as the left side end of the slider 21 of the transmission shaft 2 is in contact with the left inner wall of the clutch groove 11, a 1 / 8 circular travel groove 111 is present between the right side end of the slider 21 and the right inner wall of the clutch groove 11, and the pressure plate handle 31 is in the throwing state working position.

[0057] The electrically driven pressure plate handle 31 performs the retraction action as follows: in the original state, the motor 4 drives the transmission shaft 2 to rotate 45° clockwise, thereby driving the clutch shaft 1 to rotate 45° clockwise, and the pressure plate handle 31 is in the retraction working position; then the motor 4 performs the reset action, that is, rotates 45° counterclockwise, at this time, the right side end of the slider 21 is in contact with the right inner wall of the clutch groove 11, and there is a 1 / 8 circular travel groove 111 between the left side end of the slider 21 and the left inner wall of the clutch groove 11.

[0058] The electrically driven pressure plate handle 31 performs the throwing action. When the pressure plate handle 31 is in the retracted working position, the motor 4 drives the transmission shaft 2 to rotate 45° counterclockwise, thereby driving the clutch shaft 1 to rotate 45° counterclockwise, and the pressure plate handle 31 is in the retracted working position; then the motor 4 performs the reset action, that is, rotates 45° clockwise, at this time, the left end of the slider 21 and the left inner wall of the clutch groove 11 are in contact, and there is a 1 / 8 circular travel groove 111 between the right end of the slider 21 and the right inner wall of the clutch groove 11, restoring the original state.

[0059] The pressure plate handle 31 is manually driven to perform the retraction action. In the original state, the pressure plate handle 31 is manually rotated 45° clockwise, thereby driving the clutch shaft 1 to rotate 45° clockwise. The pressure plate handle 31 is in the retraction working position. At this time, the right side end of the slider 21 is in contact with the right inner wall of the clutch groove 11, and there is a 1 / 8 circular travel groove 111 between the left side end of the slider 21 and the left inner wall of the clutch groove 11.

[0060] The pressure plate handle 31 is manually driven to perform the throwing action. When the pressure plate handle 31 is in the retracted working position, the pressure plate handle 31 is manually rotated 45° counterclockwise, thereby driving the clutch shaft 1 to rotate 45° counterclockwise, and the pressure plate handle 31 is in the throwing working position. At this time, the left end of the slider 21 is in contact with the left inner wall of the clutch groove 11, and there is a 1 / 8 circular travel groove 111 between the right end of the slider 21 and the right inner wall of the clutch groove 11.

[0061] The slider is cylindrical, and the clutch groove is in the shape of an arc-shaped strip groove;

[0062] In other embodiments, Fig.16 As shown, the slider is cylindrical, and the clutch groove is in the shape of an arc-shaped strip groove.

[0063] In other embodiments, Fig.17 As shown, the sliders and the strip grooves are provided in two groups, and the two groups of the sliders and the strip grooves are arranged in a mirror-symmetrical manner with the center line of the clutch shaft as a reference.

[0064] Providing two groups of sliders and strip grooves can effectively distribute the load on a single slider to the two sliders. Such a structure has better reliability and makes the equipment have a longer service life.

[0065] Preferably, an electric pressure plate, such as Figure 2 As shown, it includes a pressure plate body 3 and a motor 4, the pressure plate body 3 is provided with a pressure plate handle 31, the pressure plate body 3 and the motor 4 are connected through the clutch device, the clutch shaft 1 of the clutch device and the pressure plate handle 31 are axially fixedly connected, the transmission shaft 2 of the clutch device and the output shaft 41 of the motor 4 are axially fixedly connected, and the clutch shaft 1 and the transmission shaft 2 are axially movable and engaged. Of course, the transmission shaft 2 of the clutch device is installed on the pressure plate handle 31, and the clutch shaft 1 is installed on the output shaft of the motor 4, which can also achieve the above-mentioned function, so simply changing the installation position of the transmission shaft 2 and the clutch shaft belongs to the substantially same technical solution and is also within the protection scope of this patent. The electric pressure plate is provided with the clutch device on the pressure plate body 3 and the motor 4, so that the electric pressure plate can not only electrically control the throwing and retracting action of the pressure plate handle 31, but also manually control the throwing and retracting action of the pressure plate handle 31, so as to realize the integration of manual operation and electric operation of the electric pressure plate.

[0066] Preferably, if Figure 2 As shown, the pressing plate body 3 further includes a pressing plate base 32, and a handle shaft 311 is formed on one side of the pressing plate handle 31 facing the pressing plate base 32. Fig.11 As shown, the pressure plate base 32 is provided with a handle shaft mounting through hole for rotatably mounting the handle shaft;

[0067] Conductive components 35 are respectively disposed at the front and rear of the pressure plate base 32, and the openings of the two conductive components 35 are respectively facing the left outer side and the right outer side;

[0068] The pressure plate handle 31 is equipped with a conductive element, and the two ends of the conductive element are respectively located at the front end and the rear end of the pressure plate handle. The pressure plate handle and the pressure plate base are staggered or overlapped in a horizontal rotation manner with the handle shaft as the center. When in the overlapped state, the two ends of the conductive element are respectively inserted into the two conductive components; when in the staggered state, the two ends of the conductive element are not in contact with the two conductive components. Therefore, the clutch shaft 1 is linked through the handle shaft 311 and the pressure plate handle 31. Rotating the clutch shaft 1 drives the handle shaft 311 to rotate, thereby driving the pressure plate handle 31 to rotate relative to the pressure plate base 32, and realizing the insertion and withdrawal actions of the pressure plate handle 31.

[0069] Preferably, if Figure 8As shown, the housing 5 also includes a housing body 51, a pressure plate connecting pipe 52 and a pressure plate connecting plate 53. The housing body 51 and the pressure plate connecting plate 53 are connected through the pressure plate connecting pipe 52. The housing body 51 is provided with a device installation cavity 511 inside. Fig. 9 , Fig.10 As shown, the device installation cavity 511 is connected to the pressure plate connecting pipe 52;

[0070] The motor 4 and the transmission shaft 2 are arranged in the device installation cavity 511, the clutch shaft 1 is located in the pressure plate connecting tube 52, and the pressure plate connecting plate 53 is fixedly connected to the pressure plate base 32. The clutch device and the motor 4 are encapsulated and protected by the housing 5 to avoid damage.

[0071] like Fig. 9 As shown, the electric pressure plate also includes two position detection sensors 6, and the two position detection sensors 6 are relatively installed in the device installation cavity 511 of the shell body 51, and the two position detection sensors are arranged along the radial direction of the first convex ring 22 close to the two sides of the first convex ring 22, and the detection end of the position detection sensor 6 faces the first convex ring 22; the position detection sensor is a reed switch or a Hall sensor. When the Hall sensor is used, a magnetic sheet / block is installed at the position of the first groove 221.

[0072] When the motor 4 does not rotate, the first groove 221 of the transmission shaft 2 is located on the symmetry axis of the two position detection sensors 6 .

[0073] Or, the transmission shaft is formed with a first convex ring 22 along the circumferential direction, and the first convex ring 22 is provided with a first groove 221 along the radial direction;

[0074] The electric pressure plate also includes a transceiver sensor A, which includes a transmitter and a receiver that are arranged opposite to each other. A plurality of the transceiver sensors are arranged in a ring array with the center of the first convex ring 22 as a reference. The transmitter and the receiver are respectively located above and below the first convex ring 22.

[0075] When the first groove 221 rotates through the transceiver sensor, the signal emitted by the transmitter at the corresponding position passes through the first groove 221 of the receiver and is received by the corresponding receiver;

[0076] When the motor does not rotate, the transceiver sensor installed at the corresponding position is in a connected state, and a signal is sent to confirm that the motor has rotated to the desired position. The transceiver sensor in this solution is an infrared tube sensor.

[0077] The position detection sensor 6 is used to detect the rotation angle of the transmission shaft 2 to control the operation of the motor 4. When the motor 4 drives the transmission shaft 2 to rotate until the first groove 221 and the position detection sensor 6 are opposite, the distance data detected by the position detection sensor 6 changes, and an induction signal is generated. The output shaft 41 of the motor 4 stops rotating in this direction and rotates in the opposite direction to reset. The pressure plate handle 31 is in the throwing state working position or the retreating state working position. The position detection sensor is an infrared tube to tube sensor.

[0078] The pressure plate body also includes a connecting shaft, one end of which is axially fixedly connected to the handle shaft of the pressure plate handle, and the other end of which is axially fixedly connected to the clutch shaft.

[0079] This solution enables the pressure plate handle 31 to be assembled with the clutch device by setting a connecting shaft, and adopts a segmented structure, which makes the device easier to produce and assemble.

[0080] Preferably, if Figure 4 As shown, a mounting hole 12 is provided in the middle of the other end of the clutch shaft 1 facing the connecting shaft 33, and the mounting hole 12 is a circular hole with two opposite first anti-rotation cut surfaces 121 on the arc surface;

[0081] like Fig.12 As shown, the connecting shaft 33 is a cylinder, and the other end of the connecting shaft 33 facing the clutch shaft 1 is provided with two opposite second anti-rotation cut surfaces 331 that match the mounting hole 12, and the other end of the connecting shaft 33 is embedded in the mounting hole 12 of the clutch shaft 1 and fits with the mounting hole 12.

[0082] The clutch shaft 1 and the connecting shaft 33 are axially connected together by fitting the other end of the connecting shaft 33 with the mounting hole 12. The first anti-rotation cut surface 121 in the mounting hole 12 and the second anti-rotation cut surface 331 on the connecting shaft 33 cooperate with each other to avoid relative rotation between the clutch shaft 1 and the connecting shaft 33, thereby improving the accuracy and reliability of the electric pressure plate's throwing and retracting actions.

[0083] Preferably, if Fig.14 As shown, the handle shaft 311 is a cylinder, and one end of the handle shaft 311 facing the connecting shaft 33 is provided with two opposite third anti-rotation cut surfaces 312;

[0084] like Fig.13 As shown, a stop groove 332 is provided in the middle of one end of the connecting shaft 33 facing the handle shaft 311, and two opposite sides of the groove wall of the stop groove 332 are through-connected, and the other two opposite sides of the groove wall of the stop groove 332 are formed as a fourth stop surface 333, and one end of the handle shaft 311 is embedded in the stop groove 332 of the connecting shaft 33 and fits with the stop groove 332.

[0085] By fitting one end of the handle shaft 311 with the stop groove 332, the fourth stop surface 333 in the stop groove 332 and the third stop surface 312 on the handle shaft 311 cooperate with each other to avoid relative rotation between the handle shaft 311 and the connecting shaft 33, thereby improving the accuracy and reliability of the electric pressure plate's throwing and retracting actions.

[0086] Preferably, if Fig.11 As shown, the pressure plate body 3 also includes a ball screw 34, and a first positioning groove 313 and a second positioning groove 314 are circumferentially provided on the side wall of the other end of the handle shaft 311. Fig.14 As shown, the first positioning groove 313 and the second positioning groove 314 are on the same circle;

[0087] The ball screw 34 is installed in the pressure plate base 32;

[0088] When the pressure plate handle 31 is in the throwing state working position, the ball of the ball screw 34 is inserted into the first positioning groove 313; when the pressure plate handle 31 is in the retreating state working position, the ball of the ball screw 34 is inserted into the second positioning groove 314.

[0089] The ball screw 34 locks the position of the handle shaft 311 by squeezing the ball and the handle shaft 311. For example, when the pressure plate handle 31 is switched from the throw-in working position to the retracted working position, the handle shaft 311 rotates clockwise, and the ball of the ball screw 34 comes out of the first positioning groove 313 and abuts against the side wall of the handle shaft 311, thereby generating pressure on the pressure plate handle 31, which can be felt when the pressure plate handle 31 is manually rotated; when the handle shaft 311 rotates clockwise to 45°, the ball of the ball screw 34 is stuck in the second positioning groove 314, and the pressure is reduced when the pressure plate handle 31 is manually rotated, and if the pressure plate handle 31 continues to be rotated clockwise, resistance will be generated, thereby generating a prompt that the pressure plate handle 31 has reached the retracted working position. Furthermore, whether the ball of the ball screw 34 is stuck in the first positioning groove 313 or the second positioning groove 314, it will generate resistance to further rotation of the handle shaft 311, thereby ensuring that the pressure plate handle 31 can remain in the retracted working position or the thrown working position for a long time, avoiding the pressure plate handle 31 from loosening and causing power system accidents such as mis-throwing, mis-retracting or deviation from the working position.

[0090] Preferably, the central angle between the first positioning groove 313 and the second positioning groove 314 is 45°. This is determined by the maximum rotation angle of the pressing plate handle 31, that is, the switching between the input state working position and the retracted state working position requires the pressing plate handle 31 to rotate 45°, and the central angle between the first positioning groove 313 and the second positioning groove 314 is 45°.

[0091] Preferably, two ball screws 34 are provided, and the handle shaft 311 is provided with two first positioning grooves 313 and two second positioning grooves 314. The two first positioning grooves 313 and the two second positioning grooves 314 are on the same circle, the two first positioning grooves 313 are arranged opposite to each other, the two second positioning grooves 314 are arranged opposite to each other, and the two ball screws 34 are arranged opposite to each other. By the cooperation of the ball screws 34, the first positioning grooves 313 and the second positioning grooves 314 that are opposite to each other, the positioning effect of the pressure plate handle 31 is improved.

[0092] Preferably, if Figure 3 , Figure 4 As shown, the clutch shaft 1 is composed of a clutch section 13 and a mounting section 14, the clutch section 13 is located at one end of the clutch shaft 1, the mounting section 14 is located at the other end of the clutch shaft 1, the radius of the clutch section 13 is greater than the radius of the mounting section 14, the clutch groove 11 is provided in the clutch section 13, and the mounting hole 12 is provided in the mounting section 14;

[0093] like Fig. 9 As shown, the pressure plate connecting tube 52 is composed of a clutch fixing section 521 and a shaft connecting section 522, the clutch fixing section 521 is connected to the housing body 51, the shaft connecting section 522 is connected to the pressure plate connecting plate 53, the radius of the clutch fixing section 521 is greater than the radius of the shaft connecting section 522, and the radius of the shaft connecting section 522 is smaller than the radius of the clutch section 13 of the clutch shaft 1;

[0094] The clutch section 13 of the clutch shaft 1 is sleeved in the clutch fixing section 521 of the pressure plate connecting tube 52 , and the installation section 14 of the clutch shaft 1 is sleeved in the rotating shaft connecting section 522 of the pressure plate connecting tube 52 .

[0095] The clutch section 13 of the clutch shaft 1 is thereby inserted into the clutch fixing section 521 of the pressure plate connecting tube 52, and the transmission shaft 2 and the connecting shaft 33 are connected to the clutch shaft 1, thereby limiting the clutch shaft 1 and preventing the clutch shaft 1 from moving axially.

[0096] Preferably, if Fig.12 As shown, the connecting shaft 33 is formed with a second convex ring 334 along the circumferential direction, the second convex ring 334 is connected to the second anti-rotation cut surface 331, and the radius of the second convex ring 334 is equal to the radius of the mounting section 14 of the clutch shaft 1. When the other end of the connecting shaft 33 is fitted with the mounting hole 12, the second convex ring 334 connected to the second anti-rotation cut surface 331 just fits with the other end of the clutch shaft 1, thereby cooperating with the transmission shaft 2 to fix the clutch shaft 1, and limiting the clutch shaft 1 to prevent the clutch shaft 1 from moving in the axial direction.

[0097] Preferably, if Fig. 9 As shown, it also includes a motor mounting seat 7, the motor mounting seat 7 is fixed in the device mounting cavity 511 of the housing body 51, and the motor 4 is mounted on the motor mounting seat 7;

[0098] like Fig. 9 , Fig.10 As shown, the device installation cavity 511 is provided with a plurality of motor positioning posts 512, and the motor mounting seat 7 is provided with corresponding motor positioning holes 71, and the motor positioning holes 71 are sleeved on the corresponding motor positioning posts 512. The motor mounting seat 7 is fixed by sleeved on the corresponding motor positioning posts 512 through the motor positioning holes 71, thereby preventing the motor 4 installed on the motor mounting seat 7 from shifting or vibrating greatly, thereby preventing damage to the transmission shaft 2.

[0099] Preferably, if Figure 8 As shown, the housing 5 further includes a cover 54, the top of the housing body 51 is open, the pressure plate connecting pipe 52 is connected to one side of the housing body 51, and the cover 54 covers the top of the housing body 51; the cover 54 is provided with an observation notch 541, and the observation notch 541 is opposite to the transmission shaft 2. The cover 54 is provided to facilitate maintenance of the components installed inside the housing body 51. Through the observation notch 541, it is possible to observe whether the rotation of the transmission shaft 2 is in place, and the conditions of the slider 21 and the clutch groove 11 without opening the cover 54, which is more convenient.

[0100] Preferably, if Figure 2 As shown, the pressing plate body 3 further includes two groups of conductive components 35 fixed on the pressing plate base 32, and the two groups of conductive components 35 are located on both sides of the handle shaft mounting through hole;

[0101] When the pressure plate handle 31 is in the throwing state working position, the two groups of conductive components 35 and the conductive elements of the pressure plate handle 31 are connected; when the pressure plate handle 31 is in the retreating state working position, the two groups of conductive components 35 and the conductive elements of the pressure plate handle 31 are disconnected.

[0102] Preferably, if Fig.11 As shown, the conductive component 35 includes a conductive ring 351, a fixing nut 352 and two pressing screws 353, the two pressing screws 353 are connected to the fixing nut 352, and one end of the conductive ring 351 is connected to one of the pressing screws 353;

[0103] The side wall of the conductive ring 351 is provided with a conductive notch 3511 penetrating through both ends of the conductive ring 351 , and both ends of the conductive element are bent toward the pressing plate base 32 to form a conductive sheet 315 ;

[0104] When the pressure plate handle 31 is in the throwing working position, the conductive sheet 315 of the conductive element is inserted into the conductive ring 351 from the conductive notch 3511 and contacts the conductive ring 351; when the pressure plate handle 31 is in the retracting working position, the conductive sheet 315 of the conductive element comes out from the conductive notch 3511 and separates from the conductive ring 351.

[0105] The conductive ring 351 is installed on the pressure plate base 32 by fixing the nut 352 and the wire pressing screw 353. When the pressure plate handle 31 is rotated, the conductive sheet 315 of the conductive element is inserted into or disengaged from the conductive ring 351 through the conductive notch 3511 to achieve switching. Compared with the point-to-surface contact conductive structure formed by the existing conductive rod and conductive sheet, the present application forms a surface-to-surface contact conductive structure, which has a larger conductive contact area and is more reliable for switching.

[0106] The clutch shaft 1 and the transmission shaft 2 are made of metal, and the use of metal materials can effectively ensure the reliability and service life of the product.

[0107] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A clutch device, characterized in that: It includes a clutch shaft and a transmission shaft, wherein the clutch shaft is used to be axially fixedly connected to the pressure plate handle of the electric pressure plate, and the transmission shaft is used to be axially fixedly connected to the output shaft of the motor of the electric pressure plate, and the clutch shaft and the transmission shaft are axially movable and clamped; A clutch groove is provided at one end of the clutch shaft facing the transmission shaft, and a slider is provided at one end of the transmission shaft facing the clutch shaft. The slider is slidably assembled in the clutch groove, and one side end of the slider is in contact with one of the inner side walls of the clutch groove, and a travel groove for non-transmission operation of the slider is provided between the other side end of the slider and the other inner side wall of the clutch groove; The clutch groove is opened in a circumferential shape with the center of the clutch shaft as the center of the circle, and the slider runs along the clutch groove, and the slider rotates with the center of the clutch groove as the center of the circle.

2. The clutch device according to claim 1, characterized in that: The shapes of the two inner side walls of the clutch groove are both consistent with the shape of the sliding block.

3. The clutch device according to claim 1, characterized in that: The manual rotation angle range of the clutch shaft is the same as the electric rotation angle range of the transmission shaft, and the electric rotation angle range of the transmission shaft is 0° to 45°.

4. The clutch device according to claim 1, characterized in that: The slider is a semi-cylinder, the clutch groove is in the shape of a 5 / 8 circle matching the slider, the center of the clutch groove is located on the central axis of the clutch shaft, and the center of the slider is located on the central axis of the transmission shaft.

5. The clutch device according to claim 1, characterized in that: The slider is cylindrical, and the clutch groove is in the shape of an arc-shaped strip groove; Alternatively, the slider is cylindrical, the clutch groove is in the shape of an arc-shaped strip groove, and two groups of the sliders and strip grooves are provided. The two groups of the sliders and strip grooves are arranged in a mirror-symmetrical manner with the central axis of the clutch shaft as a reference.

6. An electric pressure plate, comprising a pressure plate body and a motor, wherein the pressure plate body is provided with a pressure plate handle, characterized in that: The pressure plate body and the motor are connected via the clutch device described in any one of claims 1 to 5, the clutch shaft of the clutch device and the pressure plate handle are axially fixedly connected, the transmission shaft of the clutch device and the output shaft of the motor are axially fixedly connected, and the clutch shaft and the transmission shaft are axially movably engaged.

7. The electric pressure plate according to claim 6, characterized in that: The pressing plate body also includes a pressing plate base, a handle shaft is formed on one side of the pressing plate handle facing the pressing plate base, and the pressing plate base is provided with a handle shaft mounting through hole for rotatably mounting the handle shaft; Conductive components are respectively arranged at the front and rear of the pressure plate base, and the openings of the two conductive components are respectively facing the left outer side and the right outer side; The pressure plate handle is equipped with a conductive element, and the two ends of the conductive element are respectively located at the front end and the rear end of the pressure plate handle. The pressure plate handle and the pressure plate base are staggered or overlapped in a horizontal rotation manner with the handle shaft as the center. When in the overlapped state, the two ends of the conductive element are respectively stuck in the two conductive components; when in the staggered state, the two ends of the conductive element are not in contact with the two conductive components.

8. The electric pressure plate according to claim 7, characterized in that: It also includes a shell, the shell includes a shell body, a pressure plate connecting pipe and a pressure plate connecting plate, the shell body and the pressure plate connecting plate are connected through the pressure plate connecting pipe, a device installation cavity is provided inside the shell body, and the device installation cavity is connected to the pressure plate connecting pipe; The motor and the transmission shaft are arranged in the device installation cavity, the clutch shaft is located in the pressure plate connecting tube, and the pressure plate connecting plate is fixedly connected to the pressure plate base.

9. The electric pressure plate according to claim 8, characterized in that: The transmission shaft is formed with a first convex ring along the circumferential direction, and the first convex ring is provided with a first groove along the radial direction; The electric pressure plate further includes a position detection sensor, wherein two position detection sensors are provided, the two position detection sensors are relatively mounted in the device mounting cavity of the housing body, and the two position detection sensors are arranged along the radial direction of the first convex ring close to both sides of the first convex ring, and the detection end of the position detection sensor faces the first convex ring; When the motor does not rotate, the first groove of the transmission shaft is located on the symmetric axis of the two position detection sensors; Or, the transmission shaft is formed with a first convex ring along the circumferential direction, and the first convex ring is provided with a first groove along the radial direction; The electric pressure plate further includes a transceiver sensor, the transceiver sensor includes a transmitter and a receiver that are arranged opposite to each other, a plurality of the transceiver sensors are arranged in a ring array with the center of the first convex ring as a reference, and the transmitter and the receiver are respectively located above and below the first convex ring; When the first groove rotates through the transceiver sensor, the signal emitted by the transmitting part at the corresponding position passes through the first groove of the receiving part and is received by the corresponding receiving part; When the motor does not rotate, the transceiver sensor installed at the corresponding position is in a connected state, and a signal is sent to confirm that the motor has rotated to the desired position.

10. The electric pressure plate according to claim 9, characterized in that: The pressure plate body also includes a connecting shaft, one end of which is axially fixedly connected to the handle shaft of the pressure plate handle, and the other end of which is axially fixedly connected to the clutch shaft.

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