A dual-speed clutch structure of a reduction motor

Abstract

The present invention relates to the field of motor technology, and specifically to a dual-speed clutch structure of a reduction motor, comprising a housing, a reduction shaft, a reversing component, an input shaft, a clutch component, a connecting shaft, a synchronous shaft, a resetting component, a telescopic component and an output shaft. A motor is arranged on the right side of the housing. The present invention detects the magnitude of the torque borne on the output shaft through the clutch component, and when the torque becomes larger, cooperates with the input shaft to move leftward, and controls the reduction shaft to decelerate and increase the torque, so that the output torque of the output shaft becomes larger, controls the reversal of the reduction shaft through the reversing component, controls the output shaft to extend when the reduction shaft rotates forward, and retracts when the reduction shaft rotates reversely, and drives the clutch component to reset when the output shaft retracts, and makes the clutch component contact the reversing component, so that the reversing component ends the reversal of the reduction shaft, so that the device can automatically adjust the rotation speed and output power, ensure the normal operation of the device, prevent the motor from overloading, and automatically clean foreign objects on the output shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a dual-speed clutch structure of a reduction motor. Background Art

[0002] Gear motors are widely used in mechanisms that transmit power and motion. They are a mechanism that uses a gear speed converter to reduce the number of revolutions of a motor to the desired number of revolutions and obtain a larger torque. They can also be called "gear motors" or "gear motors". In industrial applications, devices that combine gear motors with dual-clutch transmissions can achieve highly adjustable speed and torque output. For example, for a conveyor belt system on a production line, a gear motor used to drive the conveyor belt can be combined with a dual-clutch transmission to change the speed and load of the conveyor belt when necessary. During material transportation, the rollers on the conveyor belt are usually driven by a motor. When the conveyor belt is running, it may attract dust, fibers and other substances attached to the material and entangle it on the motor shaft. For example, a conveyor belt cleaning device with patent number CN207329629U drives the active roller, the intermediate roller and the driven roller to rotate in the opposite direction through a motor, so that the cloth wrapped around the motor shaft is also transmitted. Through the friction between the intermediate roller and the cloth, dust and other dirt on the conveyor belt can be effectively removed.

[0003] The prior art solves the problem that the motor shaft of the reduction motor is easily entangled with foreign objects when driving the conveyor belt. The motor is reversed after the active roller entangles the foreign objects, and the foreign objects are cleaned up in cooperation with the intermediate roller. However, when in use, if there is a large amount of dust, fiber, silk thread and other fine debris in the environment, for example, when transmitting cloth, wool rolls, plastic film and other items, fine debris is easily entangled between the motor shaft and the roller of the reduction motor, and the cleaning effect by reversing the motor will be poor. The long-term entanglement of debris will increase the resistance on the motor shaft, which greatly reduces the transmission carrying capacity of the motor at rated power. When the reduction motor is used as the power source of the conveyor belt, the mass of the items on the conveyor belt changes dynamically, resulting in the size of the resistance on the motor shaft of the reduction motor also changing dynamically. If the resistance on the motor shaft is greater than the torque output by the reduction motor, if the speed is not reduced and the torque is not increased in time, the conveyor belt will stop running, affecting production efficiency.

[0004] Therefore, a dual-speed clutch structure of a reduction motor is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a dual-speed clutch structure of a reduction motor. In view of the fact that when the reduction motor in the prior art is used as a power source for a conveyor belt, the resistance size of the motor shaft changes dynamically. When the resistance increases, if the speed is not reduced in time and the torque is not increased, it is easy to cause the conveyor belt to stop running, and even the reduction motor is overloaded for a long time and damaged. By arranging a connecting shaft on the output shaft of the reduction motor and opening a clutch groove on the connecting shaft, when the resistance of the output shaft is greater than the torque applied by the motor on the output shaft, the connecting shaft automatically moves to the left to slow down the output shaft and increase the torque, so that the reduction motor can drive the conveyor belt to continue working. When the output shaft is affected by foreign matter and the resistance is too large, the connecting shaft can be disengaged from the clutch groove and drive the output shaft to reverse and retract to the right at the same time, thereby avoiding motor overload and facilitating the cleaning of foreign matter wrapped around the output shaft.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The dual-speed clutch structure of the reduction motor includes a housing, a reduction shaft, a reversing component, an input shaft, a clutch component, a connecting shaft, a synchronous shaft, a reset component, a telescopic component and an output shaft. A motor is arranged on the right side of the housing, the input shaft is driven by the motor, a transmission groove is provided in the housing, the input shaft is connected to the left end of the motor, the connecting shaft is arranged on the left side of the input shaft, the synchronous shaft is arranged on the left side of the input shaft, and the left end thereof is rotatably connected to the inner wall of the housing, the reduction shaft is arranged on the rear side of the input shaft, the reduction shaft is connected to a first gear and a second gear, the output shaft is connected to the left side of the reduction shaft, and the The clutch component is arranged on the connecting shaft, and is used to detect the magnitude of the torque borne on the output shaft, and when the torque becomes larger, it cooperates with the input shaft to move leftward, and controls the reduction shaft to slow down and increase the torque, so that the output torque of the output shaft becomes larger. The reversing component is arranged on the connecting shaft, and is used to control the reversal of the reduction shaft. The telescopic component is arranged on the output shaft, and can control the output shaft to extend when the reduction shaft rotates forward and retract when it reverses. The reset component is arranged in the synchronous shaft, and can drive the clutch component to reset when the output shaft retracts, and make the clutch component contact the reversing component, so that the reversing component ends the reversal of the reduction shaft.

[0008] Preferably, the clutch component includes a third gear, a fourth gear, a disengagement unit, a clutch slot and a first pin, the third gear is connected to the left side of the connecting shaft, the third gear cooperates with the first gear, the fourth gear is arranged on the right side of the third gear, the fourth gear cooperates with the second gear, the clutch slot is opened at the right end of the side wall of the connecting shaft, the clutch slot includes a first inclined section and a second inclined section, the horizontal inclination angle of the second inclined section is greater than the horizontal inclination angle of the first inclined section and is less than 90°, the first pin is arranged on the output shaft, the first pin cooperates with the clutch slot, the disengagement unit is arranged on the connecting shaft, and is used to disengage the first pin from the clutch slot when the motor is overloaded.

[0009] In the above scheme, the diameter of the first gear is smaller than that of the second gear, the diameter of the third gear is smaller than that of the first gear, and the diameter of the fourth gear is smaller than that of the third gear. When the first pin is located on the left side of the first inclined section, the third gear is meshed with the first gear, and the reduction shaft is in the first stage of reduction. When the first pin is located on the right side of the first inclined section, the fourth gear is meshed with the second gear, the third gear is disengaged from the first gear, and the reduction shaft is in the second stage of reduction.

[0010] Preferably, both left and right ends of the third gear and the fourth gear are provided with meshing angles, and the meshing angles are set at 45° with the left and right end faces of the third gear and the fourth gear.

[0011] In the above solution, the meshing angles on both sides of the third gear and the fourth gear can make them slide into the meshing position with the first gear and the second gear along the meshing angle when following the connecting shaft to move left or right.

[0012] Preferably, a first rounded corner is provided at the connection between the first inclined section and the second inclined section, and the first rounded corner cooperates with the first pin.

[0013] In the above scheme, the left and right ends of the first fillet are tangent to the first inclined section and the second inclined section respectively, which is convenient for stabilizing the position of the first pin. At the same time, after the force applied changes to a certain extent, it can seamlessly connect and slide with the first inclined section and the second inclined section, thereby changing the rotation speed of the reduction shaft and achieving a more stable clutch effect.

[0014] Preferably, the disengagement unit includes a first spring, a disengagement slot, a second pin and a transfer slot, the first spring is sleeved on the synchronization shaft, and its two ends are respectively abutted against the inner wall of the outer shell and the connecting shaft, the disengagement slot is opened on the connecting shaft, the disengagement slot includes a horizontal slot and a locking slot, the horizontal slot is oriented left and right, the locking slot is vertically arranged at the right end of the horizontal slot, the second pin is connected to the synchronization shaft, the second pin cooperates with the disengagement slot, and the transfer slot is horizontally opened at the upper end of the first inclined section.

[0015] In the above scheme, when the first pin is located at the first inclined section and the second inclined section, the second pin is located at the horizontal groove, so that the connecting shaft can move left and right. When the first pin is located on the right side of the connecting shaft, the second pin is rotated into the locking groove, so that the connecting shaft cannot move left and right.

[0016] Preferably, a second rounded corner is provided at the right end of the transfer groove, and the second rounded corner cooperates with the first pin.

[0017] In the above solution, when the connecting shaft can move left and right, if the first pin is located at the right end of the connecting shaft, when the first pin rotates to the second rounded corner, it can slide along the second rounded corner into the leftmost end of the first inclined section of the clutch groove.

[0018] Preferably, the reversing component includes a first reversing gear, a second reversing gear, a third reversing gear, a sliding groove, a second spring and a spring baffle. The first reversing gear is connected to the reduction shaft, the third reversing gear is arranged on the output shaft, the second reversing gear is connected to the inner wall of the outer shell, and its two ends are respectively meshed with the first reversing gear and the third reversing gear. A limit pin is provided on the third reversing gear, and the limit pin is connected to the sliding groove. The spring baffle is arranged on the output shaft and is located at the right end of the third reversing gear. The two ends of the second spring are respectively abutted against the third reversing gear and the spring baffle, and the third reversing gear cooperates with the right side of the connecting shaft.

[0019] In the above scheme, when the first pin is located in the clutch slot, the connecting shaft can be fitted with the third reverse gear, so that the third reverse gear squeezes the second spring on the right side. When the first pin is located at the right end of the connecting shaft, the connecting shaft is disengaged from the third reverse gear. Under the action of the elastic force of the second spring, the left end of the third reverse gear is fitted with the right end of the first pin, so that the third reverse gear is meshed with the second reverse gear, thereby achieving the purpose of reversing the reduction shaft.

[0020] Preferably, the telescopic component includes a limit rod, an outer screw rod, a limit block, an inner screw ring, a fixed block, a third spring, an unlocking block, a cam groove and a fixed groove, the outer screw rod is fixed to the left side of the reduction shaft, the inner screw ring is connected to the right side of the output shaft, the inner screw ring cooperates with the outer screw rod, the limit block is connected to the outside of the inner screw ring, the limit rod is transversely fixed to the inner wall of the shell, the limit block is slidably connected to the limit rod, the fixing groove is opened in the limit block, the fixed block is connected in the limit block, two ends of the third spring respectively abut against the front end of the fixed block and the inner wall of the limit block, a frosted plate is provided at the rear end of the fixed block, a frosted ring is provided on the outside of the inner screw ring, the frosted plate cooperates with the frosted ring, a third pin is provided at the lower end of the fixed block, the unlocking block is connected to the lower end of the fixed block, the cam groove is opened on the unlocking block, and the third pin cooperates with the cam groove.

[0021] In the above scheme, the frosting plate can lock the inner thread ring when it contacts the frosting ring. When the limit block does not move left and right, the inner thread ring can rotate with the outer screw. When the inner thread ring is locked and cannot rotate, the outer screw can drive the inner thread ring to move left and right. While the output shaft rotates, it can move left and right as needed, thereby achieving the purpose of facilitating the cleaning of foreign objects.

[0022] Preferably, the reset component includes a reset push rod, a reset latch, a reset groove, a fourth spring, a reset block, a second chamfer and a fifth spring, the reset groove is provided in the synchronous shaft, the reset push rod is slidably connected in the synchronous shaft, the left side of the reset push rod cooperates with the right side of the unlocking block, the reset latch is connected to the right side of the reset push rod, the reset block is connected to the second pin, the second chamfer is arranged on the left side of the reset block, the second chamfer cooperates with the reset latch, the fourth spring is arranged on the side of the reset block away from the second pin, and the two ends of the fifth spring respectively abut the right side of the reset push rod and the inner wall of the synchronous shaft.

[0023] In the above scheme, when the reduction shaft reverses and drives the limit block and the unlocking block to move to the right side of the outer screw, the unlocking block can fit with the reset push rod, so that the unlocking block first moves to the left relative to the limit block and then squeezes the reset push rod to move to the right.

[0024] Preferably, a third fillet is provided at the front end of the second pin, and the curvature of the third fillet is the same as the curvature of the reset groove.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention arranges a connecting shaft on the left side of the input shaft, arranges a clutch component on the connecting shaft, and makes the clutch component cooperate with the deceleration component. When the output shaft is subjected to increased resistance, the deceleration shaft is decelerated, and the deceleration shaft drives the output shaft to increase power. When the device encounters increased resistance during use, the rotation speed and output power can be automatically adjusted, thereby ensuring the normal operation of the device.

[0027] 2. The present invention arranges a reversing component on the connecting shaft to cooperate with the telescopic component on the output shaft, so that when the resistance encountered by the output shaft after being entangled with foreign matter is too large, the connecting shaft drives the connecting shaft to move further to the left with the cooperation of the clutch component, so that the reversing component starts to work and drives the output shaft to reverse, while the telescopic component drives the output shaft to retract to the right, and the output shaft is disengaged from the conveyor belt roller, and a gap is left between the output shaft and the conveyor belt roller, thereby achieving the purpose of protecting the motor from overload and automatically cleaning the foreign matter on the output shaft.

[0028] 3. The present invention arranges a reset component in the synchronous shaft. When the telescopic component drives the output shaft to retract to the right and the output shaft cleans the foreign matter wrapped around it, the telescopic component can cooperate with the reset component to reset the clutch component and stop the input shaft from reversing. This ensures that the device can be put into use quickly and automatically after the foreign matter is cleaned, thereby achieving higher automation and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the structure of the clutch component of the present invention;

[0031] Figure 3 It is an enlarged structural schematic diagram of the clutch groove and the meshing angle of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of the disengagement unit of the present invention;

[0033] Figure 5 It is a schematic diagram of the connecting shaft structure of the present invention;

[0034] Figure 6 It is a schematic diagram of the structure of the reversing component of the present invention;

[0035] Figure 7 It is a schematic diagram of the exploded structure of the telescopic component of the present invention;

[0036] Figure 8 It is a schematic diagram of the enlarged structure of the reset component of the present invention;

[0037] Fig. 9 It is a schematic diagram of the internal structure of the housing when the resetting component of the present invention is reset.

[0038] In the figure: 1, housing; 2, reduction shaft; 3, reversing component; 4, motor; 5, input shaft; 6, clutch component; 7, connecting shaft; 8, synchronous shaft; 9, reset component; 101, telescopic component; 102, output shaft; 21, first gear; 22, second gear; 61, third gear; 62, fourth gear; 63, disengagement unit; 64, clutch slot; 65, first pin; 641, first inclined section; 642, second inclined section; 66, meshing angle; 643, first fillet; 631, first spring; 632, disengagement slot; 633, second pin; 634, transfer slot; 6341, second fillet; 6321, horizontal slot; 6322, locking slot; 31, first Reverse gear; 32, second reverse gear; 33, third reverse gear; 34, sliding groove; 35, second spring; 36, spring baffle; 331, limit pin; 1011, limit rod; 1012, outer screw rod; 1013, limit block; 1014, inner screw ring; 1015, fixed block; 1016, third spring; 1017, unlocking block; 1018, cam groove; 1019, fixed groove; 10141, frosted ring; 10151, frosted plate; 10152, third pin; 91, reset push rod; 92, reset pin; 93, reset groove; 94, fourth spring; 95, reset block; 96, second chamfer; 97, fifth spring; 6331, third fillet. DETAILED DESCRIPTION

[0039] In order to make the technical solutions in the embodiments of the present invention clearly and completely described, and the features and advantages can be more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0040] Example 1

[0041] See also Figures 1 to 3 The present invention provides a dual-speed clutch structure of a reduction motor 4, comprising a housing 1, a reduction shaft 2, a reversing component 3, an input shaft 5, a clutch component 6, a connecting shaft 7, a synchronizing shaft 8, a resetting component 9, a telescopic component 101 and an output shaft 102. The motor 4 is arranged on the right side of the housing 1, the input shaft 5 is driven by the motor 4, a transmission groove is provided in the housing 1, the input shaft 5 is connected to the left end of the motor 4, the connecting shaft 7 is arranged on the left side of the input shaft 5, the synchronizing shaft 8 is arranged on the left side of the input shaft 5, and the left end thereof is rotatably connected to the inner wall of the housing 1, the reduction shaft 2 is arranged on the rear side of the input shaft 5, the reduction shaft 2 is connected to a first gear 21 and a second gear 22, and the output shaft 102 is connected to the left side of the reduction shaft 2. The clutch component 6 is arranged on the connecting shaft 7, which is used to detect the magnitude of the torque borne on the output shaft 102, and when the torque becomes larger, it cooperates with the input shaft 5 to move to the left, and controls the reduction shaft 2 to slow down and increase the torque, so that the output torque of the output shaft 102 becomes larger. The reversing component 3 is arranged on the connecting shaft 7, which is used to control the reversal of the reduction shaft 2. The telescopic component 101 is arranged on the output shaft 102, which can control the output shaft 102 to extend when the reduction shaft 2 rotates forward and retract when it rotates reversely. The reset component 9 is arranged in the synchronous shaft 8, which can drive the clutch component 6 to reset when the output shaft 102 retracts, and makes the clutch component 6 contact the reversing component 3, so that the reversing component 3 ends the reversal of the reduction shaft 2.

[0042] See also Figures 2 to 3Specifically, the clutch component 6 includes a third gear 61, a fourth gear 62, a disengagement unit 63, a clutch slot 64 and a first pin 65. The clutch slot 64 is provided at the right end of the side wall of the connecting shaft 7. The clutch slot 64 includes a first inclined section 641 and a second inclined section 642. The horizontal inclination angle of the second inclined section 642 is greater than the horizontal inclination angle of the first inclined section 641 and is less than 90°. The first pin 65 is provided on the output shaft 102. The first pin 65 cooperates with the clutch slot 64. The disengagement unit 63 is provided at the connecting shaft 7. The third gear 61 and the fourth gear 62 are provided with meshing angles 66 at both ends, and the meshing angles 66 are set at 45° with the left and right end faces of the third gear 61 and the fourth gear 62. The first rounded corner 643 is provided at the connection between the first inclined section 641 and the second inclined section 642, and the first rounded corner 643 cooperates with the first pin 65. The cooperation here refers to the increase of the resistance of the reduction shaft 2 at the rear end of the connecting shaft 7. When the torque is large and eventually greater than the torque of the input shaft 5 acting on the reduction shaft 2, the first pin 65 will push the connecting shaft 7 to move leftward along the first inclined section 641, and when it moves to the first fillet 643 at the junction of the first inclined section 641 and the second inclined section 642, the first pin 65 stops sliding further, the diameter of the first gear 21 is smaller than the diameter of the second gear 22, the diameter of the third gear 61 is smaller than the diameter of the first gear 21, the diameter of the fourth gear 62 is smaller than the diameter of the third gear 61, the third gear 61 is connected to the left side of the connecting shaft 7, and the third gear 61 cooperates with the first gear 21. The cooperation here means that when the first pin 65 is located on the left side of the first inclined section 641, the third gear 61 is meshed with the first gear 21, and the fourth gear 62 is set on the right side of the third gear 61, and the fourth gear 62 cooperates with the second gear 22. The cooperation here means that when the first pin 65 is located at the first fillet 643, the fourth gear 62 is meshed with the second gear 22, and the third gear 61 is disengaged from the first gear 21.

[0043] Working principle: When the reduction motor 4 is working, when the resistance at the output shaft 102 is greater than the torque of the reduction shaft 2, the input shaft 5 drives the first pin 65 to push the connecting shaft 7 to the left with the cooperation of the clutch component 6, so that the reduction shaft 2 is decelerated and the torque is increased, so that when the device encounters increased resistance during use, it can automatically adjust the speed and output power.

[0044] Specifically, during the operation of the reduction motor 4, the motor 4 drives the input shaft 5 to rotate, and the input shaft 5 drives the first pin 65 to rotate. At this time, the first pin 65 is located at the left end of the first inclined section 641. The rotation of the first pin 65 drives the connecting shaft 7 to rotate, and the connecting shaft 7 drives the third gear 61 and the fourth gear 62 thereon to rotate. At this time, the third gear 61 is engaged with the first gear 21, and the third gear 61 drives the first gear 21 and the reduction shaft 2 to rotate. The reduction shaft 2 further drives the output shaft 102 to rotate, so that the output shaft 102 outputs power outward.

[0045] When there are many items on the conveyor belt, the power output by the output shaft 102 is insufficient to drive the conveyor belt to move. At this time, the motor 4 still provides power to the input shaft 5 due to the unchanged rated power. The input shaft 5 drives the first pin 65 to continue to rotate along the inclined surface of the first inclined section 641. Since the output shaft 102 cannot rotate, the reduction shaft 2 and the connecting shaft 7 cannot rotate. Therefore, the connecting shaft 7 is pushed to the left along the inclined surface by the first pin 65 on the rotating shaft, and the connecting shaft 7 drives the third gear 61 and the fourth gear 62 to move to the left. The third gear 61 is disengaged from the first gear 21, and the fourth gear 62 is engaged with the second gear 2. 2 starts to mesh, and when the first pin 65 enters the first fillet 643, the connecting shaft 7 drives the fourth gear 62 to fully mesh with the second gear 22. Since the fourth gear 62 is smaller than the third gear 61 in diameter and the second gear 22 is larger than the first gear 21 in diameter, the torque acting on the reduction shaft 2 by the input shaft 5 becomes larger, the speed of the reduction shaft 2 slows down and the power provided becomes larger, thereby increasing the power output by the output shaft 102, so that the output shaft 102 can drive the conveyor belt to continue to run, and when there are more things on the conveyor belt, the clutch structure automatically slows down to increase the torque, thereby preventing the device from stopping and being overloaded for a long time.

[0046] Example 2

[0047] See also Figures 4 to 7, a dual-speed clutch structure of a reduction motor 4 is provided, the clutch component 6 includes a disengagement unit 63, the disengagement unit 63 includes a first spring 631, a disengagement slot 632, a second pin 633 and a transfer slot 634, the first spring 631 is sleeved on the synchronous shaft 8, and its two ends are respectively abutted against the inner wall of the housing 1 and the connecting shaft 7, the disengagement slot 632 is provided on the connecting shaft 7, the disengagement slot 632 includes a horizontal slot 6321 and a locking slot 6322, the horizontal slot 6321 is oriented left and right, the locking slot 6322 is vertically arranged at the right end of the horizontal slot 6321, the second pin 633 is connected to the synchronous shaft 8, and the second pin 633 cooperates with the disengagement slot 632, and the cooperation here refers to when the first pin 65 is located at the first inclined section 64 1 and the second inclined section 642, the second pin 633 is located at the horizontal groove 6321, so that the connecting shaft 7 can move left and right. When the first pin 65 is located on the right side of the connecting shaft 7, the second pin 633 is rotated into the locking groove 6322, so that the connecting shaft 7 cannot move left and right. The rotation groove 634 is horizontally opened at the upper end of the first inclined section 641, and a second fillet 6341 is provided at the right end of the rotation groove 634. The second fillet 6341 cooperates with the first pin 65. The cooperation here means that when the connecting shaft 7 can move left and right, if the first pin 65 is located at the right end of the connecting shaft 7, when the first pin 65 rotates to the second fillet 6341, it can slide along the second fillet 6341 into the leftmost end of the first inclined section 641 of the clutch groove 64.

[0048] See also Figure 7Specifically, the telescopic component 101 includes a limit rod 1011, an outer screw rod 1012, a limit block 1013, an inner screw ring 1014, a fixed block 1015, a third spring 1016, an unlocking block 1017, a cam groove 1018 and a fixed groove 1019. The outer screw rod 1012 is fixed to the left side of the reduction shaft 2, and the inner screw ring 1014 is fixed to the right side of the output shaft 102. The inner screw ring 1014 is rotatably connected to the limit block 1013, and the inner screw ring 1014 cooperates with the outer screw rod 1012. The cooperation here refers to when When the limit block 1013 does not move left and right, the inner wire ring 1014 can rotate with the outer screw rod 1012. When the inner wire ring 1014 is locked and cannot rotate, the outer screw rod 1012 can drive the inner wire ring 1014 to move left and right. The limit block 1013 is connected to the outer side of the inner wire ring 1014, the limit rod 1011 is transversely fixed to the inner wall of the shell 1, the limit block 1013 is slidably connected to the limit rod 1011, the fixing groove 1019 is opened in the limit block 1013, and the fixing block 1015 is connected to the limit block 1013. The two ends of the third spring 1016 are respectively in contact with the front end of the fixed block 1015 and the inner wall of the limit block 1013, the rear end of the fixed block 1015 is provided with a frosted plate 10151, and the outer side of the inner thread ring 1014 is provided with a frosted ring 10141, and the frosted plate 10151 cooperates with the frosted ring 10141. The cooperation here means that when the fixed block 1015 moves backward to a certain position, the frosted plate 10151 contacts with the frosted ring 10141, so that the inner thread ring 1014 cannot rotate. A third pin 10152 is provided, an unlocking block 1017 is connected to the lower end of the fixed block 1015, a cam slot 1018 is provided on the unlocking block 1017, the middle part of the cam slot 1018 is bent backwards, and the third pin 10152 cooperates with the cam slot 1018. The cooperation here means that when the third pin 10152 moves from the middle part of the cam slot 1018 to the left and right ends of the cam slot 1018, the unlocking block 1017 can drive the third pin 10152 and the fixed block 1015 to move forward along the cam slot 1018.

[0049] See also Figures 4 to 6Specifically, the reversing component 3 includes a first reversing gear 31, a second reversing gear 32, a third reversing gear 33, a sliding groove 34, a second spring 35 and a spring baffle 36. The first reversing gear 31 is connected to the reduction shaft 2, the third reversing gear 33 is arranged on the output shaft 102, the second reversing gear 32 is connected to the inner wall of the housing 1, and its two ends are respectively engaged with the first reversing gear 31 and the third reversing gear 33. A limiting pin 331 is arranged on the third reversing gear 33, and the limiting pin 331 is connected to the sliding groove 34. The spring baffle 36 is arranged on the output shaft 102, and is located at the right end of the third reversing gear 33. The two ends of the second spring 35 are respectively in contact with the third reverse gear 33 and the spring baffle 36, and the third reverse gear 33 cooperates with the right side of the connecting shaft 7. The cooperation here means that when the first pin 65 is located in the clutch slot 64, the connecting shaft 7 can be fitted with the third reverse gear 33, so that the third reverse gear 33 squeezes the second spring 35 on the right side. When the first pin 65 is located at the right end of the connecting shaft 7, the connecting shaft 7 is disengaged from the fitting of the third reverse gear 33. Under the action of the elastic force of the second spring 35, the left end of the third reverse gear 33 is fitted with the right end of the first pin 65. At this time, the third reverse gear 33 is meshed with the second reverse gear 32.

[0050] The rest of the structure is the same as that of Example 1.

[0051] Working principle: When the reduction motor 4 is working, the input shaft 5 drives the clutch component 6 to rotate the reduction shaft 2. Under the action of the telescopic component 101, the reduction shaft 2 drives the output shaft 102 to extend and rotate, so that the output end provides power to the conveyor belt to transport items. When foreign matter is entangled between the output end and the conveyor belt roller, the resistance of the output shaft 102 becomes larger. When it is so large that the fourth gear 62 and the second gear 22 still cannot rotate, the clutch component 6 moves to the left to make the reversing component 3 start to control the reduction shaft 2 to reverse. The reduction shaft 2 reverses and with the cooperation of the telescopic component 101, the output shaft 102 reverses and retracts at the same time, so as to prevent the motor 4 from overloading and retract the output shaft 102 to facilitate the cleaning of foreign matter.

[0052] Specifically, when the reduction motor 4 is working, the motor 4 drives the input shaft 5 to rotate. When the first pin 65 on the input shaft 5 is located at the clutch groove 64, the first pin 65 drives the connecting shaft 7 and the synchronous shaft 8 to rotate. The second pin 633 on the synchronous shaft 8 is located at the horizontal groove 6321 of the disengagement groove 632. At this time, the connecting shaft 7 abuts the third reverse gear 33 to the right under the action of the first spring 631. The third reverse gear 33 does not contact the second reverse gear 32, and the third gear 61 or the fourth gear 62 on the connecting shaft 7 is meshed with the first gear 21 or the second gear 22 on the reduction shaft 2, thereby making the reduction shaft 2 rotate. The rotation of the reduction shaft 2 drives the outer screw 1012 to rotate. When the reduction shaft 2 just starts to rotate, the fixed block 1015 in the limit block 1013 cooperates with the inner thread ring 1014 backward under the action of the third spring 1016, so that the frosting plate 10151 cooperates with the frosting ring 10141, and the inner thread ring 1014 cannot rotate. The nail 10152 is located in the middle of the cam groove 1018, and the limit block 1013 can slide left and right on the limit rod 1011. Therefore, the outer screw rod 1012 first drives the inner screw ring 1014, the output shaft 102 and the limit block 1013 to move to the right in cooperation with the inner screw ring 1014. When the limit block 1013 moves to the left end inside the shell 1, the left end of the unlocking block 1017 abuts against the inner wall of the shell 1, and the unlocking block 1017 moves to the right relative to the limit block 1013. At this time, The three pins 10152 move to the lower left end of the cam groove 1018, and the third pin 10152 drives the fixed block 1015 to move downward and squeezes the third spring 1016, thereby making the fixed block 1015 disengage from the contact with the inner thread ring 1014, and the inner thread ring 1014 is unlocked and rotated, while the limit block 1013 moves to the left end of the outer shell 1 and cannot move further to the left. At this time, the inner thread ring 1014 can only drive the output shaft 102 to rotate and output power outward under the action of the outer screw 1012.

[0053] When the resistance on the output shaft 102 becomes larger due to the entanglement of foreign objects, and when it is so large that the fourth gear 62 and the second gear 22 still cannot rotate, the first pin 65 rotates to make the connecting shaft 7 move to the left along the second inclined end to squeeze the first spring 631, and finally make the connecting shaft 7 completely move to the left side of the first pin 65. At this time, the second pin 633 moves from the horizontal groove 6321 to the locking groove 6322, and the connecting shaft 7 cannot move left and right. The right end of the connecting shaft 7 does not abut against the third reverse gear 33. The third reverse gear 33 is fitted with the first pin 65 under the action of the second spring 35, and the third reverse gear 33 is meshed with the second reverse gear 32. At this time, when the output shaft 102 rotates, it drives the third reverse gear 33 to rotate, and under the action of the second reverse gear 32, it drives the first reverse gear 31 to rotate. The outer screw 1012 is retracted into the housing 1 by the outer screw 1012, and the outer screw 1012 is retracted into the housing 1 by the outer screw 1012. ..., and the outer screw 1012 is retracted into the housing 1. The outer screw 1012 is retracted into the housing 1, and the outer screw 1012 is retracted into the housing 1. The outer screw 1012 is retracted into the housing 1, and the outer screw 1012 is retracted into the housing 1. The outer screw 1012 is retracted into the housing 1, and the outer screw 1012 is retracted into the housing 1, and the outer screw 1012 is retracted into the housing 1, and the outer screw 1012 is retracted into

[0054] Example 3

[0055] See also Figures 8 to 9, a dual-speed clutch structure of a reduction motor 4 is provided, including a reset component 9 including a reset push rod 91, a reset latch 92, a reset groove 93, a fourth spring 94, a reset block 95, a second chamfer 96 and a fifth spring 97, the reset groove 93 is arranged in the synchronous shaft 8, the reset push rod 91 is slidably connected in the synchronous shaft 8, and the left side of the reset push rod 91 cooperates with the right side of the unlocking block 1017. The cooperation here means that when the reduction shaft 2 reverses and drives the limit block 1013 and the unlocking block 1017 to move to the right side of the external screw rod 1012, the unlocking block 1017 can fit with the reset push rod 91, so that the unlocking block 1017 first moves to the left relative to the limit block 1013 and then squeezes the reset push rod 91 Move to the right, the reset pin 92 is connected to the right side of the reset push rod 91, the reset block 95 is connected to the second pin 633, and the second chamfer 96 is set on the left side of the reset block 95. The second chamfer 96 cooperates with the reset pin 92. The cooperation here means that when the reset pin 92 moves to the right, the reset pin 92 can push the reset block 95 toward the axis of the synchronization shaft 8 along the second chamfer 96. The fourth spring 94 is set on the side of the reset block 95 away from the second pin 633, and the two ends of the fifth spring 97 are respectively abutted against the right side of the reset push rod 91 and the inner wall of the synchronization shaft 8. The front end of the second pin 633 is provided with a third fillet 6331, and the curvature of the third fillet 6331 is the same as the curvature of the reset groove 93.

[0056] The rest of the structure is the same as that of Example 2.

[0057] Working principle: After the foreign matter on the output shaft 102 is cleaned, the telescopic component 101 drives the reset component 9 to unlock the connecting shaft 7, so that the connecting shaft 7 moves to the right under the action of the first spring 631. The connecting shaft 7 moves to the right and contacts the third reversing gear 33, so that the reversing component 3 is disengaged. At the same time, the first pin 65 re-engages with the clutch slot 64, which facilitates the output shaft 102 to be put into use quickly and automatically, thereby achieving higher automation.

[0058] Specifically, after the foreign matter on the output shaft 102 is cleaned, the limit block 1013 moves to the right side of the outer screw rod 1012, and the unlocking block 1017 on the limit block 1013 pushes the reset push rod 91 to the right. The reset push rod 91 squeezes the fifth spring 97 and drives the reset latch 92 to move to the right. When the reset latch 92 moves to the right, the reset latch 92 can push the reset block 95 toward the axis of the synchronous shaft 8 along the second chamfer 96. The reset block 95 squeezes the fourth spring 94 and drives the second latch to retract into the synchronous shaft 8, so that the second latch is disengaged from the locking groove 6322, so that the connecting shaft 7 can move to the right under the action of the first spring 631. When the first latch rotates to the transfer groove 634, the connecting shaft 7 moves to the right. The third reverse gear 33 is moved and abutted, so that the third reverse gear 33 is disengaged from the meshing with the second reverse gear 32, and the reduction shaft 2 stops reversing. At this time, the first pin 65 rotates to drive the connecting shaft 7 to rotate, and the third gear 61 is meshed with the first gear 21. The forward rotation of the reduction shaft 2 drives the output shaft 102 to extend. When the rotating shaft rotates to the point where the second pin 633 is directly opposite to the horizontal groove 6321, the second pin 633 extends out from the left and right of the fourth spring 94, so that the second pin 633 is reinserted into the horizontal groove 6321, which is convenient for the next movement to the locking groove 6322 to limit the left and right sliding of the rotating shaft, so that the output shaft 102 is automatically extended and put into use after the foreign matter is cleaned, thereby achieving higher automation and improving production efficiency.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A dual-speed clutch structure of a reduction motor, comprising a housing (1), a reduction shaft (2), a reversing component (3), an input shaft (5), a clutch component (6), a connecting shaft (7), a synchronization shaft (8), a reset component (9), a telescopic component (101) and an output shaft (102), wherein a motor (4) is arranged on the right side of the housing (1), and the input shaft (5) is driven by the motor (4), and is characterized in that: A transmission groove is provided in the housing (1); the input shaft (5) is connected to the left end of the motor (4); the connecting shaft (7) is arranged on the left side of the input shaft (5); the synchronizing shaft (8) is arranged on the left side of the input shaft (5); the left end of the synchronizing shaft (8) is rotatably connected to the inner wall of the housing (1); the reduction shaft (2) is arranged on the rear side of the input shaft (5); the reduction shaft (2) is connected to a first gear (21) and a second gear (22); the output shaft (102) is connected to the left side of the reduction shaft (2); the clutch component (6) is arranged on the connecting shaft (7) and is used to detect the torque borne by the output shaft (102) and to cooperate with the output shaft (102) when the torque increases. The input shaft (5) moves to the left, and controls the deceleration shaft (2) to decelerate and increase torque, so that the output shaft (102) outputs power. The reversing component (3) is arranged on the connecting shaft (7) and is used to control the reversal of the deceleration shaft (2). The telescopic component (101) is arranged on the output shaft (102) and can control the output shaft (102) to extend when the deceleration shaft (2) rotates forward and retract when it rotates reversely. The reset component (9) is arranged in the synchronous shaft (8) and can drive the clutch component (6) to reset when the output shaft (102) retracts, and makes the clutch component (6) contact the reversing component (3), so that the reversing component (3) ends the reversal of the deceleration shaft (2). The clutch component (6) comprises a third gear (61), a fourth gear (62), a disengagement unit (63), a clutch groove (64) and a first pin (65); the third gear (61) is connected to the left side of the connecting shaft (7); the third gear (61) cooperates with the first gear (21); the fourth gear (62) is arranged on the right side of the third gear (61); the fourth gear (62) cooperates with the second gear (22); the clutch groove (64) is provided at the right end of the side wall of the connecting shaft (7); The clutch groove (64) comprises a first inclined section (641) and a second inclined section (642); the horizontal inclination angle of the second inclined section (642) is greater than the horizontal inclination angle of the first inclined section (641) and is less than 90°; the first pin (65) is arranged on the output shaft (102); the first pin (65) cooperates with the clutch groove (64); the disengagement unit (63) is arranged on the connecting shaft (7) and is used to disengage the first pin (65) from the clutch groove (64) when the motor (4) is overloaded; The reversing component (3) comprises a first reversing gear (31), a second reversing gear (32), a third reversing gear (33), a sliding groove (34), a second spring (35) and a spring baffle (36); the first reversing gear (31) is connected to the deceleration shaft (2); the third reversing gear (33) is arranged on the output shaft (102); the second reversing gear (32) is connected to the inner wall of the housing (1); two ends of the second reversing gear (32) are respectively meshed with the first reversing gear (31) and the third reversing gear (33); a limiting pin (331) is arranged on the third reversing gear (33); the limiting pin (331) is connected to the sliding groove (34); the spring baffle (36) is arranged on the output shaft (102) and is located at the right end of the third reversing gear (33); two ends of the second spring (35) are respectively abutted against the third reversing gear (33) and the spring baffle (36); the third reversing gear (33) is matched with the right side of the connecting shaft (7); The telescopic component (101) comprises a limit rod (1011), an outer screw rod (1012), a limit block (1013), an inner screw ring (1014), a fixing block (1015), a third spring (1016), an unlocking block (1017), a cam groove (1018) and a fixing groove (1019); the outer screw rod (1012) is fixed to the left side of the deceleration shaft (2); the inner screw ring (1014) is connected to the right side of the output shaft (102); the inner screw ring (1014) cooperates with the outer screw rod (1012); the limit block (1013) is connected to the outside of the inner screw ring (1014); the limit rod (1011) is transversely fixed to the inner wall of the housing (1); the limit block (1013) is slidably connected to the limit rod (1011); and the fixing groove (1019) is opened. The third spring (1016) is arranged in a limit block (1013), the fixed block (1015) is connected in the limit block (1013), the two ends of the third spring (1016) are respectively in contact with the front end of the fixed block (1015) and the inner wall of the limit block (1013), the rear end of the fixed block (1015) is provided with a frosting plate (10151), the outer side of the inner thread ring (1014) is provided with a frosting ring (10141), the frosting plate (10151) cooperates with the frosting ring (10141), the rear end of the fixed block (1015) is provided with a third pin (10152), the unlocking block (1017) is connected to the lower end of the fixed block (1015), the cam groove (1018) is provided on the unlocking block (1017), and the third pin (10152) cooperates with the cam groove (1018); The reset component (9) comprises a reset push rod (91), a reset latch (92), a reset groove (93), a fourth spring (94), a reset block (95), a second chamfer (96) and a fifth spring (97). The reset groove (93) is arranged in the synchronous shaft (8). The reset push rod (91) is slidably connected in the synchronous shaft (8). The left side of the reset push rod (91) cooperates with the right side of the unlocking block (1017). The reset latch (92) is connected to the right side of the reset push rod (91). The reset block (95) is connected to the second pin (633). The second chamfer (96) is arranged on the left side of the reset block (95). The second chamfer (96) cooperates with the reset latch (92). The fourth spring (94) is arranged on the side of the reset block (95) away from the second pin (633). The two ends of the fifth spring (97) are respectively in contact with the right side of the reset push rod (91) and the inner wall of the synchronous shaft (8).

2. The dual-speed clutch structure of the reduction motor according to claim 1 is characterized in that: The third gear (61) and the fourth gear (62) are provided with meshing angles (66) at both left and right ends, and the meshing angles (66) are arranged at 45 degrees to the left and right end faces of the third gear (61) and the fourth gear (62).

3. The dual-speed clutch structure of the reduction motor according to claim 1 is characterized in that: A first rounded corner (643) is provided at the connection between the first inclined section (641) and the second inclined section (642), and the first rounded corner (643) cooperates with the first pin (65).

4. The dual-speed clutch structure of the reduction motor according to claim 1 is characterized in that: The disengagement unit (63) comprises a first spring (631), a disengagement slot (632), a second pin (633) and a transfer slot (634). The first spring (631) is sleeved on the synchronous shaft (8), and its two ends are respectively in contact with the inner wall of the housing (1) and the connecting shaft (7). The disengagement slot (632) is provided on the connecting shaft (7). The disengagement slot (632) comprises a horizontal slot (6321) and a locking slot (6322). The horizontal slot (6321) is oriented left and right. The locking slot (6322) is vertically arranged at the right end of the horizontal slot (6321). The second pin (633) is connected to the synchronous shaft (8). The second pin (633) cooperates with the disengagement slot (632). The transfer slot (634) is horizontally provided at the upper end of the first inclined section (641).

5. The dual-speed clutch structure of the reduction motor according to claim 4 is characterized in that: The right end of the transfer groove (634) is provided with a second rounded corner (6341), and the second rounded corner (6341) cooperates with the first pin (65).

6. The dual-speed clutch structure of the reduction motor according to claim 1, characterized in that: The front end of the second pin (633) is provided with a third fillet (6331), and the curvature of the third fillet (6331) is the same as the curvature of the reset groove (93).

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