Mechanical limit automatic slip protection motor

Abstract

The application discloses a motor with mechanical limiting automatic slip protection and relates to the technical field of motors, which comprises a forward and reverse motor, a rotating output shaft and a clutch, the clutch is used for controlling whether the forward and reverse motor transmits rotating power to the rotating output shaft, when the rotating output shaft rotates to a position in a forward direction or a position in a reverse direction, the clutch cuts off the power transmission between the forward and reverse motor and the rotating output shaft, through the structural design of a first limiting surface, a second limiting surface and a limiting block, the state of whether the clutch assembly transmits the rotation of a rotating disc to an output disc is changed through the relationship between the limiting block and the first limiting surface and the second limiting surface, and the control of cutting off the power transmission when the rotating output shaft is in place is realized, and through the structural design of the limiting block, the first limiting surface and the second limiting surface, the problem that the transmission gear between the motor rotating shaft and the rotating output shaft is excessively rotated due to inertia is effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of motor technology, and in particular to a motor with mechanical limit automatic slippage protection. Background Technology

[0002] In many fields such as modern industrial automation, precision manufacturing equipment, intelligent logistics systems, robot joint drives, and CNC machine tool feed mechanisms, the motor, as a core power output component, directly determines the overall performance and service life of the equipment through its power transmission on / off control, positioning accuracy, and operational reliability. The motor positioning clutch, as an integrated electromechanical actuator, has the core function of precisely engaging and disengaging motor power. Simultaneously, when the motor drives the load to a preset positioning position, it quickly cuts off power transmission to prevent excessive load displacement or motor overload, thereby achieving precise load positioning and protection. It is one of the key components connecting the motor and load, ensuring the stable and efficient operation of the equipment.

[0003] In existing motors, when stopped, the transmission gears between the motor shaft and the output shaft rotate due to inertia, causing excessive rotation output. Summary of the Invention

[0004] The purpose of this invention is to design a motor with mechanical limit and automatic slippage protection in order to solve the above problems.

[0005] The present invention achieves the above objectives through the following technical solutions: A motor with mechanical limit automatic slippage protection includes a forward and reverse motor, a rotary output shaft and a clutch. The clutch is used to control whether the forward and reverse motor transmits rotational power to the rotary output shaft. When the rotary output shaft rotates to the forward position or to the reverse position, the clutch cuts off the power transmission between the forward and reverse motor and the rotary output shaft. The clutch includes: Rotating disk; the shaft of the forward and reverse motor is used to drive the rotating disk to rotate in both directions. Output disk; the rotation center of the output disk is fixedly connected to the rotating output shaft; Clutch assembly; Limit plate; the limit plate is equipped with limit blocks; First limiting surface; The second limiting surface; the first and second limiting surfaces remain relatively stationary relative to the housing of the forward and reverse motor; the forward and reverse motor rotates in both directions. During forward rotation, the distance between the limiting block and the first limiting surface is greater than zero, and the rotating disk drives the output disk and the limiting disk to rotate forward through the clutch assembly; when the forward rotation is complete, the limiting block and the first limiting surface are pressed together, and the limiting disk, the output disk, and the clutch assembly are in a relatively stationary state, and the clutch assembly disengages the rotating disk from the output disk; during reverse rotation, the distance between the limiting block and the second limiting surface is greater than zero, and the rotating disk drives the output disk and the limiting disk to rotate in the opposite direction through the clutch assembly; when the reverse rotation is complete, the limiting block and the second limiting surface are pressed together, and the limiting disk, the output disk, and the clutch assembly are in a relatively stationary state, and the clutch assembly disengages the rotating disk from the output disk.

[0006] The beneficial effects of this invention are as follows: Through the structural design of the first limiting surface, the second limiting surface, and the limiting block, and through the relationship between the limiting block and the first and second limiting surfaces, the state of whether the clutch assembly outputs the rotation of the rotating disk to the output disk is changed, thereby achieving control over the disconnection of power transmission when the rotating output shaft is in position. This structure is implemented entirely through mechanical structure, effectively ensuring the stability of power transmission on / off control. Through the structural design of the limiting block and the first and second limiting surfaces, the problem of excessive rotation output caused by inertial rotation between the transmission gears between the motor shaft and the rotating output shaft is effectively avoided. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of a motor with mechanical limit and automatic slippage protection according to the present invention; Figure 2 This is a schematic diagram of the internal structure of a motor with mechanical limit and automatic slippage protection according to the present invention; Figure 3 This is a schematic diagram of the worm gear in a motor with mechanical limit and automatic slippage protection according to the present invention; Figure 4 This is a schematic diagram of the planetary gear mechanism in a motor with mechanical limit and automatic slippage protection according to the present invention. Figure 5 This is a schematic diagram of the gear ring in a motor with mechanical limit and automatic slippage protection according to the present invention; Figure 6 This is a schematic diagram of the internal structure of the limit plate in a motor with mechanical limit and automatic slip protection according to the present invention; Figure 7 This is a schematic diagram of the clutch assembly in a motor with mechanical limit and automatic slippage protection according to the present invention. Figure 8 This is a schematic diagram of the internal structure of the second inclined surface in a motor with mechanical limit and automatic slip protection according to the present invention; Figure 9 This is a schematic diagram of the structure of the first inclined surface in a motor with mechanical limit and automatic slip protection according to the present invention; Figure 10 This is a schematic diagram of the internal structure of a motor with mechanical limit and automatic slippage protection according to the present invention; Figure 11 This is a schematic diagram of the structure of a brush position switch in a motor with mechanical limit and automatic slippage protection according to the present invention; Figure 12 This is a schematic diagram of the contact plate in a motor with mechanical limit and automatic slip protection according to the present invention; Figure 13 This is a schematic diagram of the structure of the first position contact in a motor with mechanical limit automatic slip protection according to the present invention; The corresponding figure labels are: 1-Reverse motor, 2-Rotation output shaft, 3-Clutch, 4-Housing, 5-Mounting plate, 6-Brush position switch, 7-Rotation transmission gear set; 301-Rotating disk, 302-Limiting disk, 303-Limiting block, 304-First limiting surface, 305-Second limiting surface, 306-Limiting groove, 307-Mounting groove, 308-Clutch column, 309-Spring plate, 310-First inclined surface, 311-Second inclined surface, 312-Output disk; 601-First positioning contact, 602-Second positioning contact, 603-Contact plate, 604-Contact strip, 605-Connecting plate, 606-Circuit board; 701-Planetary gear mechanism, 702-Planet carrier, 703-Sun gear, 704-Ring gear, 705-Worm gear, 706-Worm, 707-Driving gear, 708-Driven gear, 709-Planet gear. Detailed Implementation

[0008] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0009] Therefore, the following detailed description of the embodiments of the 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 invention without inventive effort are within the scope of protection of the invention.

[0010] 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.

[0011] In the description of this invention, it should be understood that the terms "upper," "lower," "inner," "outer," "left," "right," 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 product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this invention and to simplify the description, and are not intended to 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 invention.

[0012] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0013] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0014] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0015] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 As shown, a motor with mechanical limit automatic slippage protection includes a forward and reverse motor 1, a rotary output shaft 2 and a clutch 3. The clutch 3 is used to control whether the forward and reverse motor 1 transmits rotational power to the rotary output shaft 2. When the rotary output shaft 2 rotates to the forward position or to the reverse position, the clutch 3 cuts off the power transmission between the forward and reverse motor 1 and the rotary output shaft 2. Clutch 3 includes: Rotary disk 301; the shaft of the forward and reverse motor 1 is used to drive the rotary disk 301 to rotate in both directions; Output disk 312; the rotation center of output disk 312 is fixedly connected to the rotation output shaft 2; Clutch assembly; Limiting disk 302; a limiting block 303 is provided on the limiting disk 302; First limiting surface 304; The second limiting surface 305; the first limiting surface 304 and the second limiting surface 305 are always relatively stationary relative to the housing 4 of the forward and reverse motor 1; the forward and reverse motor 1 rotates in both directions. During the forward rotation, the distance between the limiting block 303 and the first limiting surface 304 is greater than zero, and the rotating disk 301 drives the output disk 312 and the limiting disk 302 to rotate in the forward direction through the clutch assembly; when the forward rotation is in place, the limiting block 303 and the first limiting surface 304 are pressed into contact, and the limiting disk 302, the output disk 312 and the clutch assembly are in contact. In a relatively stationary state, the clutch assembly disengages the rotation output of the rotating disk 301 to the output disk 312. During the reverse rotation, the distance between the limiting block 303 and the second limiting surface 305 is greater than zero, and the rotating disk 301 drives the output disk 312 to rotate in the opposite direction to the limiting disk 302 through the clutch assembly. When the reverse rotation is in place, the limiting block 303 and the second limiting surface 305 are pressed into contact, and the limiting disk 302, the output disk 312 and the clutch assembly are in a relatively stationary state. The clutch assembly disengages the rotation output of the rotating disk 301 to the output disk 312.

[0016] The clutch assembly includes at least two clutch sub-components, which are arranged in a circular array around the rotation center of the output disk 312. The limiting disk 302 has at least two limiting grooves 306, and the output disk 312 has at least two mounting grooves 307. One clutch sub-component is installed in one mounting groove 307, and one clutch sub-component is located in one limiting groove 306. When the rotating disk 301 drives the output disk 312 and the limiting disk 302 to rotate via the clutch assembly, the rotating disk 301 is in contact with the two clutch posts 308. When the clutch assembly disengages the rotating disk 301 from the rotational output of the output disk 312, the rotating disk 301 separates from the two clutch posts 308.

[0017] Each clutch component includes two clutch posts 308 and an elastic assembly. The elastic force end of the elastic assembly acts on the two clutch posts 308 respectively. The first direction is the direction from the rotation center of the output disk 312 towards the mounting groove 307. Both clutch posts 308 and the elastic assembly are installed in the mounting groove 307. The sides of the two clutch posts 308 are pressed against the two sides of the limiting groove 306 respectively. When the rotating disk 301 drives the output disk 312 and the limiting disk 302 to rotate through the clutch assembly, the rotating disk 301 is pressed against the two clutch posts 308. When the clutch assembly disengages the rotating disk 301 from the rotation output of the output disk 312, the rotating disk 301 separates from the two clutch posts 308.

[0018] The elastic element is a U-shaped spring sheet 309. The first end of the spring sheet 309 is located at the first end of the mounting groove 307, and the second end of the spring sheet 309 is located at the second end of the mounting groove 307. The direction from the first end of the mounting groove 307 to the second end of the mounting groove 307 is the first direction. Two clutch pins 308 are located on both sides of the second end of the spring sheet 309. The two sides of the second end of the mounting groove 307 are first inclined surfaces 310. The distance between the first ends of the two first inclined surfaces 310 is less than the distance between the second ends of the two first inclined surfaces 310. The distance from the first end of the first inclined surface 310 to the central axis of the output disk 312 is less than the distance from the second end of the first inclined surface 310 to the central axis of the output disk 312.

[0019] The two sides of the limiting groove 306 are second inclined surfaces 311, and the two second inclined surfaces 311 are parallel to each other.

[0020] In this invention, there are two limiting blocks 303, which participate in the forward rotation and reverse rotation respectively, and generate a squeezing effect between them and the first limiting surface 304 and the second limiting surface 305; alternatively, the two sides of one limiting block 303 can participate in the forward rotation and reverse rotation respectively, and generate a squeezing effect between them and the first limiting surface 304 and the second limiting surface 305.

[0021] A motor with mechanical limit automatic slip protection also includes a mounting plate 5, at least two sets of brush position switches 6, a microcontroller, a first power supply, and a second power supply. One set of brush position switches 6 is used to collect the operating status of the rotating output shaft 2 and transmit it to the microcontroller or different terminals. The operating status of the rotating output shaft 2 collected by each set of brush position switches 6 is the same. The first power supply is used to power one set of brush position switches 6 and the microcontroller. The second power supply is used to power the brush position switches 6 except those powered by the first power supply. The mounting plate 5 is rotatably mounted inside the circuit board mounting chamber of the reversible motor 1. The rotation center of the rotating output shaft 2 is fixedly connected to the rotation center of the mounting plate 5. The rotating output shaft 2 drives the mounting plate 5 to rotate, and the angular velocity of the mounting plate 5 is the same as the angular velocity of the rotating output shaft 2. The specific design of the brush position switch structure of the motor of this invention, while retaining the mechanical output signal, greatly improves the service life of the traditional mechanical position detection structure (using microswitches to detect the position signal) and reduces costs.

[0022] Each set of brush position switches includes two first position contacts 601, two second position contacts 602, and a conductive contact. The conductive contact is fixedly mounted on the mounting plate 5. A motor with mechanical limit automatic slip protection also includes a contact plate 603. The two first position contacts 601 and the two second position contacts 602 are all set on the contact plate 603. The contact plate 603 is always in a relatively stationary state relative to the circuit board of the forward and reverse motor 1. When rotating forward to the position, the conductive contact contacts contact and conduct with the two first position contacts 601 respectively, and the forward running position signal is collected. When rotating in reverse to the position, the conductive contact contacts contact and conduct with the two second position contacts 602 respectively, and the reverse running position signal is collected and transmitted to the microcontroller or terminal.

[0023] The conductive contact includes two conductive elements. Each conductive element includes two contact strips 604 and a connecting plate 605. The two ends of the connecting plate 605 are fixedly connected to the first ends of the two contact strips 604 respectively. The connecting plate 605 is fixedly installed on the mounting plate 5. When rotated to the position in the forward direction, the second ends of the two contact strips 604 respectively contact and conduct with the two first position contacts 601. When rotated to the position in the reverse direction, the second ends of the two contact strips 604 respectively contact and conduct with the two second position contacts 602 respectively.

[0024] A motor with mechanical limit automatic slip protection also includes a rotation transmission gear set 7. The rotation transmission gear set 7 is used for rotation transmission between the rotating shaft of the forward and reverse motor 1 and the rotating disk 301. The rotation transmission gear set 7 includes a planetary gear mechanism 701. The rotating disk 301 is fixedly connected to the planet carrier 702 of the planetary gear mechanism 701. The rotating shaft of the forward and reverse motor 1 is used for the rotation of the sun gear 703 of the planetary gear mechanism 701. The gear ring 704 of the planetary gear mechanism 701 is always in a relatively stationary state relative to the first limit surface 304.

[0025] The rotational transmission gear set 7 also includes a worm gear 705, a worm 706, a driving gear 707, and a driven gear 708. The worm gear 705 meshes with the worm 706 for transmission. The rotation center of the driving gear 707 is fixedly connected to the shaft of the reversible motor 1. The driving gear 707 meshes with the driven gear 708 for transmission. The rotation center of the driven gear 708 is fixedly connected to the rotation center of the worm 706. The rotation center of the sun gear 703 is fixedly connected to the rotation center of the worm gear 705.

[0026] The working principle of the motor with mechanical limit and automatic slippage protection of this invention is as follows: When the reversible motor 1 starts, it rotates in the forward direction. The shaft of the reversible motor 1 drives the driving wheel 707 to rotate. The meshing transmission between the driving wheel 707 and the driven wheel 708 drives the driven wheel 708, worm 706, and worm gear 705 to rotate together. The worm gear 705 drives the sun gear 703 in the planetary gear mechanism 701 to rotate. Since the gear ring 704 of the planetary gear mechanism 701 is fixed, the planet gears 709 and the planet carrier 702 in the planetary gear mechanism 701 rotate under the action of the sun gear 703. The clutch column 308 rotates to drive the rotating disk 301. At this time, the side wall of the clutch column 308 is pressed and contacted with the inner side wall of the rotating disk 301 and the inclined surface of the output disk 312. The rotating disk 301 generates tangential friction force on the clutch column 308, causing the clutch column 308 to move. Since multiple clutch components are arranged in an array with the central axis of the output disk 312 as the center, and the position of the rotating disk 301 is restricted, the clutch column 308 drives the limiting disk 302 and the output disk 312 to rotate, and transmits the rotation to the rotating output shaft 2. When the clutch rotates to its forward position, the limiting block 303 and the first limiting surface 304 exert a squeezing force, increasing the squeezing force between the clutch pin 308 and the limiting groove 306. Under the action of the first inclined surface 310 and the second inclined surface 311, the clutch pin 308 moves a certain distance towards the first end of the mounting groove 307. At this point, the distance between the rotating disk 301 and the clutch pin 308 is greater than zero, and the storage capacity of the spring plate 309 further increases. Therefore, the clutch pin 308 cuts off the rotational transmission from the rotating disk 301 to the output disk 312. This also avoids the situation where the squeezing force between the limiting block 303 and the first limiting surface 304 increases, causing slight deformation of the limiting block 303 and the first limiting surface 304 under the squeezing force. Over a long period of use, this deformation gradually accumulates, leading to a decrease in positioning accuracy and operational stability. The structural design of this clutch 3 effectively ensures positioning accuracy, response speed, and operational stability, and improves the service life of the motor-driven clutch 3; meeting the requirements of modern industrial automation equipment for precise positioning, rapid response, stability, reliability, and flexible adaptation.

[0027] After rotating to the correct position in the forward direction, when reversing, the shaft of the forward / reverse motor 1 drives the rotating disk 301 to rotate in the opposite direction through the rotation transmission gear set 7. At this time, the limiting block 303 separates from the first limiting surface 304, thus reducing the squeezing force between the clutch pin 308 and the limiting groove 306. As a result, the spring plate 309 returns to its original deformation, and the clutch pin 308 is subjected to the elastic force of the spring plate 309. Under the action of the first inclined surface 310 and the second inclined surface 311, the clutch pin 308 moves a certain distance toward the second end of the mounting groove 307. Finally, under the action of the limiting groove 306 of the spring plate 309, the distance between the clutch column 308 and the rotating disk 301 is reduced and the clutch column 308 makes a squeezing contact with the rotating disk 301. The rotating disk 301 generates a tangential friction force on the clutch column 308, causing the clutch column 308 to move. Since multiple clutch components are arranged in an array with the central axis of the output disk 312 as the center, and the position of the rotating disk 301 is limited, the clutch column 308 drives the limiting disk 302 and the output disk 312 to rotate, and transmits the rotation to the rotating output shaft 2. When the reverse rotation is in place, the limiting block 303 and the second limiting surface 305 exert a squeezing effect, and the squeezing force between the other clutch pin 308 and the limiting groove 306 increases. Under the action of the first inclined surface 310 and the second inclined surface 311, the clutch pin 308 moves a certain distance toward the first end of the mounting groove 307. At this time, the distance between the rotating disk 301 and the clutch pin 308 is greater than zero. Therefore, the clutch pin 308 cuts off the rotational transmission from the rotating disk 301 to the output disk 312. It also avoids the situation where the squeezing force between the limiting block 303 and the second limiting surface 305 increases, causing the limiting block 303 and the second limiting surface 305 to deform slightly under the squeezing force.

[0028] When the forward and reverse motor 1 rotates, the rotation output shaft 2 drives the mounting plate 5 and the brush position switch assembly to rotate together with the rotation output shaft 2, and the rotation direction and rotation angle are the same as those of the rotation output shaft 2. When the forward rotation is in place, the second ends of the two contact bars 604 respectively contact and conduct with the two first position contacts 601, so that the microcontroller receives the signal that the rotation output shaft 2 has rotated to the position in the forward direction. When the forward and reverse motor 1 rotates to the position in the reverse direction, the conducting contact element respectively contacts and conducts with the two second position contacts 602, collects the signal that the rotation output shaft 2 has rotated to the position in the reverse direction, and transmits the signal to the terminal. The two sets of brush position switches 6 transmit signals to the microcontroller and different terminals respectively. Multiple sets of brush position switch assemblies simultaneously detect the detection position signals of forward and reverse rotation, so as to achieve the purpose of accurately distinguishing the forward and reverse rotation position status, high detection accuracy, and strong anti-interference ability.

[0029] The technical solutions of the present invention are not limited to the specific embodiments described above. Any technical modifications made in accordance with the technical solutions of the present invention fall within the protection scope of the present invention.

Claims

1. A motor with mechanical limit and automatic slippage protection, characterized in that, It includes a forward and reverse motor, a rotary output shaft, and a clutch. The clutch is used to control whether the forward and reverse motor transmits rotational power to the rotary output shaft. When the rotary output shaft rotates to the forward or reverse position, the clutch cuts off the power transmission between the forward and reverse motor and the rotary output shaft. The clutch includes: Rotating disk; the shaft of the forward and reverse motor is used to drive the rotating disk to rotate in both directions. Output disk; the rotation center of the output disk is fixedly connected to the rotating output shaft; Clutch assembly; Limit plate; the limit plate is equipped with limit blocks; First limiting surface; The second limiting surface; the first and second limiting surfaces remain relatively stationary relative to the housing of the forward and reverse motor; the forward and reverse motor rotates in both directions. During forward rotation, the distance between the limiting block and the first limiting surface is greater than zero, and the rotating disk drives the output disk and the limiting disk to rotate forward through the clutch assembly; when the forward rotation is complete, the limiting block and the first limiting surface are pressed together, and the limiting disk, the output disk, and the clutch assembly are in a relatively stationary state, and the clutch assembly disengages the rotating disk from the output disk; during reverse rotation, the distance between the limiting block and the second limiting surface is greater than zero, and the rotating disk drives the output disk and the limiting disk to rotate in the opposite direction through the clutch assembly; when the reverse rotation is complete, the limiting block and the second limiting surface are pressed together, and the limiting disk, the output disk, and the clutch assembly are in a relatively stationary state, and the clutch assembly disengages the rotating disk from the output disk.

2. The motor with mechanical limit and automatic slippage protection according to claim 1, characterized in that, The clutch assembly includes at least two clutch sub-components, and multiple clutch sub-components are arranged in a circular array with the rotation center of the output disk as the center. The limiting disk has at least two limiting slots, and the output disk has at least two mounting slots. One clutch sub-component is installed in one mounting slot, and one clutch sub-component is located in one limiting slot.

3. A motor with mechanical limit and automatic slippage protection according to claim 2, characterized in that, Each clutch component includes two clutch posts and an elastic assembly. The elastic force end of the elastic assembly acts on the two clutch posts respectively. The first direction is the direction from the rotation center of the output disk towards the mounting groove. Both clutch posts and the elastic assembly are installed in the mounting groove. The sides of the two clutch posts are in contact with the two sides of the limiting groove respectively. When the rotating disk drives the output disk and the limiting disk to rotate through the clutch assembly, the rotating disk is in contact with the two clutch posts. When the clutch assembly disengages the rotating disk from the rotation output of the output disk, the rotating disk separates from the two clutch posts.

4. A motor with mechanical limit and automatic slippage protection according to claim 3, characterized in that, The elastic element is a "U"-shaped spring sheet. The first end of the spring sheet is located at the first end of the mounting groove, and the second end of the spring sheet is located at the second end of the mounting groove. The direction from the first end of the mounting groove to the second end of the mounting groove is the first direction. Two clutch pins are located on both sides of the second end of the spring sheet. The two sides of the second end of the mounting groove are first inclined surfaces. The distance between the first ends of the two first inclined surfaces is less than the distance between the second ends of the two first inclined surfaces. The distance from the first end of the first inclined surface to the central axis of the output disk is less than the distance from the second end of the first inclined surface to the central axis of the output disk.

5. A motor with mechanical limit and automatic slippage protection according to claim 3, characterized in that, The two sides of the limiting groove are second inclined surfaces, and the two second inclined surfaces are parallel to each other.

6. A motor with mechanical limit and automatic slippage protection according to claim 1, characterized in that, A motor with mechanical limit automatic slip protection also includes a mounting plate, at least two sets of brush position switches, a microcontroller, a first power supply, and a second power supply. One set of brush position switches is used to collect the operating status of the rotating output shaft and transmit it to the microcontroller or different terminals. The rotating output shaft operating status collected by each set of brush position switches is the same. The first power supply is used to supply power to one set of brush position switches and the microcontroller. The second power supply is used to supply power to the brush position switches other than those powered by the first power supply. The mounting plate is rotatably mounted inside the circuit board mounting chamber of the forward and reverse motor. The rotating output shaft drives the mounting plate to rotate, and the angular velocity of the mounting plate is the same as the angular velocity of the rotating output shaft.

7. A motor with mechanical limit and automatic slippage protection according to claim 6, characterized in that, Each set of brush position switches includes two first position contacts, two second position contacts, and a conductive contact. The conductive contact is fixedly mounted on the mounting plate. A motor with mechanical limit automatic slip protection also includes a contact plate. The two first position contacts and two second position contacts are all set on the contact plate. The contact plate is always in a relatively stationary state relative to the circuit board of the forward and reverse motor. When rotating forward to the position, the conductive contact contacts contact and conduct with the two first position contacts respectively, collecting the forward running position signal; when rotating in reverse to the position, the conductive contact contacts contact and conduct with the two second position contacts respectively, collecting the reverse running position signal, and transmitting the signal to the microcontroller or terminal.

8. A motor with mechanical limit and automatic slippage protection according to claim 7, characterized in that, The conductive contact includes two conductive elements, each of which includes two contact strips and a connecting plate. The two ends of the connecting plate are fixedly connected to the first ends of the two contact strips respectively. The connecting plate is fixedly mounted on the mounting plate. When rotated to the position in the forward direction, the second ends of the two contact strips respectively contact and conduct with the two first position contacts; when rotated to the position in the reverse direction, the second ends of the two contact strips respectively contact and conduct with the two second position contacts.

9. A motor with mechanical limit and automatic slippage protection according to claim 1, characterized in that, A motor with mechanical limit automatic slip protection also includes a rotation transmission gear set. The rotation transmission gear set is used for rotation transmission between the rotating shaft of the forward and reverse motor and the rotating disk. The rotation transmission gear set includes a planetary gear mechanism. The rotating disk is fixedly connected to the planet carrier of the planetary gear mechanism. The rotating shaft of the forward and reverse motor is used to drive the sun gear of the planetary gear mechanism to rotate. The gear ring of the planetary gear mechanism is always in a relatively stationary state relative to the first limit surface.

10. A motor with mechanical limit and automatic slippage protection according to claim 9, characterized in that, The rotational transmission gear set also includes a worm gear, a worm, a driving gear, and a driven gear. The worm gear meshes with the worm for transmission. The rotation center of the driving gear is fixedly connected to the shaft of the forward and reverse motor. The driving gear meshes with the driven gear for transmission. The rotation center of the driven gear is fixedly connected to the rotation center of the worm. The rotation center of the sun gear is fixedly connected to the rotation center of the worm gear.

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