Clutch structure and motor gearbox thereof

Abstract

The utility model relates to a clutch structure and a motor gearbox thereof in the technical field of motor gearboxes, which comprises a motor, an input gear set, an output component, a shell and a reversing clutch gear set, and the reversing clutch gear set comprises a driving wheel, a reversing gear frame, a first clutch gear and a second clutch gear. The driving wheel can alternately output power outwards through the first clutch gear and the second clutch gear, so that when the clutch function needs to be achieved, the motor is powered off, the output shaft is rotated through a wrench, the output shaft is rotated in the direction opposite to the rotating direction of the output shaft before power failure, and the transmission wheel is disengaged from the first clutch gear and the second clutch gear; and the gear transmission in front of the transmission wheel is disconnected, so that the wrench can be easily rotated, the output shaft is manually rotated, and the clutch effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor gear boxes, in particular to a clutch structure and a motor gear box thereof. Background Art

[0002] Currently, the gearboxes on the market are usually driven by an electric motor, so that the power of the motor can be reasonably decelerated, the torque can be increased, and the output direction and output form can be changed through the gearbox.

[0003] In some existing electric drive devices, it is necessary to use the motor gearbox to synchronize the output of the positive and negative alternation effect when the motor is reversed, and it is also necessary to achieve the purpose of gear clutch by switching gears. Therefore, in response to these current situations, it is urgent to develop a clutch structure and its motor gearbox to meet the needs of actual use. Summary of the Invention

[0004] The purpose of this utility model is to solve the above-mentioned defects and provide a clutch structure and its motor gearbox.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A clutch structure includes a reversing clutch gear set, which includes a drive wheel, a reversing gear carrier, a first clutch gear, and a second clutch gear. The drive wheel has a horizontally protruding central gear shaft at its center. The gear carrier is rotatably mounted on the central gear shaft at its center. The first clutch gear and the second clutch gear are rotatably connected to both ends of the gear carrier, respectively. Both the first clutch gear and the second clutch gear mesh with the central gear shaft. The drive wheel can alternately output power to the outside through the first clutch gear and the second clutch gear.

[0007] In the above description, as a further solution, the reversing gear frame is composed of a sleeve base plate and a limiting top plate. The sleeve base plate and the limiting top plate are both "V"-shaped structures. Both ends of the sleeve base plate and the limiting top plate are provided with axle pins for fixed connection. The first clutch gear and the second clutch gear are respectively rotatably sleeved on the inside of the axle pins.

[0008] The motor gearbox includes a motor, an input gear set, an output assembly and a housing. The above-mentioned clutch structure is provided between the input gear set and the output assembly. The driving wheel transmits power to the output assembly side through the first clutch gear and the second clutch gear respectively.

[0009] In the above description, as a further embodiment, the input gear set includes an input helical gear, an input wheel, and an input worm. The input worm is sleeved on the output shaft of the motor and meshes with the input helical gear in parallel. One side of the input wheel meshes with the input helical gear, and the other side of the input wheel meshes with the drive wheel.

[0010] As a further embodiment of the above description, the output component includes a rotating shaft, an output wheel, a limit cam, and a limit switch. The output wheel and the limit cam are respectively fixedly connected to both ends of the rotating shaft. The limit switch is located on one side of the limit cam, and the protrusion of the limit cam can extend to the surface of the limit switch for contact.

[0011] As a further embodiment of the above description, a transmission gear assembly is provided between the reversing clutch gear set and the output assembly. The transmission gear assembly includes a first transmission wheel and a second transmission wheel. The first transmission wheel and the second transmission wheel mesh with each other. The first clutch gear and the second clutch gear can alternately mesh with the first transmission wheel, and the second transmission wheel meshes with the output wheel.

[0012] The beneficial effects of this utility model are as follows:

[0013] This application discloses a clutch structure and its motor gearbox, which includes a reversing clutch gear set between the input gear set and the output assembly. When the drive wheel changes its rotation direction, it drives the reversing gear carrier to swing, thereby causing the output assembly to alternately mesh and transmit power between the first clutch gear and the second clutch gear. When the clutch function is required, the motor is powered off, and the output shaft is rotated with a wrench in the opposite direction of the output shaft's rotation before the power was cut off. This disengages the transmission wheel from the first and second clutch gears. At this time, the gear transmission in front of the transmission wheel is disconnected, allowing the wrench to be easily turned to manually rotate the output shaft and achieve the clutch effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the clutch structure and its motor gearbox described in this utility model;

[0015] Figure 2 This is a structural diagram of the reversing clutch gear set of the utility model;

[0016] Figure 3 This is a schematic structural diagram of the input gear set of the present invention;

[0017] Figure 4 This is a schematic structural diagram of the output assembly of the present invention;

[0018] In the figure, 1-motor, 2-input gear set, 21-input bevel gear, 22-input wheel, 23-input worm, 3-reversing clutch gear set, 31-driving wheel, 311-center gear shaft, 32-reversing gear frame, 321-sleeve bottom plate, 322-limiting top plate, 33-first clutch gear, 34-second clutch gear, 35-axle pin, 4-output assembly, 41-rotating shaft, 42-output wheel, 43-limiting cam, 44-limit switch, 5-transmission gear assembly, 51-first transmission wheel, 52-second transmission wheel, 6-housing. DETAILED DESCRIPTION

[0019] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0020] See also Figure 1-4 , a clutch structure and a motor gearbox thereof are specifically implemented, including a motor 1, an input gear set 2, an output assembly 4 and a housing 6. The motor 1 is connected to the output assembly 4 through the input gear set 2. A reversing clutch gear set 3 is provided between the input gear set 2 and the output assembly 4. A transmission gear assembly 5 is further provided between the reversing clutch gear set 3 and the output assembly 4. The transmission gear assembly 5 includes a first transmission wheel 51 and a second transmission wheel 52. The first transmission wheel 51 and the second transmission wheel 52 are meshed with each other for transmission.

[0021] Specifically, such as Figure 2 As shown, the reversing clutch gear set 3 includes a driving wheel 31, a reversing gear frame 32, a first clutch gear 33 and a second clutch gear 34. A horizontally raised central gear shaft 311 is provided in the center of the driving wheel 31. The middle part of the gear frame is rotatably mounted on the central gear shaft 311. The first clutch gear 33 and the second clutch gear 34 are rotatably connected to the two ends of the gear frame respectively. Springs 331 and 341 are installed under the first clutch gear 33 and the second clutch gear 34. Through the effective elasticity of the springs, they can cut in more smoothly when meshing with the first transmission wheel 51 to avoid rigid collision. The first clutch gear 33 and the second clutch gear 34 are both meshed with the central gear shaft 311. The driving wheel 31 alternately meshes the power with the first transmission wheel 51 through the first clutch gear 33 and the second clutch gear 34, and the second transmission wheel 52 meshes with the output wheel 42 for transmission.

[0022] In a further embodiment, the reversing gear frame 32 is composed of a sleeve base plate 321 and a limiting top plate 322. Both the sleeve base plate 321 and the limiting top plate 322 are "V" shaped structures. Both ends of the sleeve base plate 321 and the limiting top plate 322 are provided with shaft pins 35 for fixed connection. The first clutch gear 33 and the second clutch gear 34 are rotatably sleeved inside the shaft pins 35.

[0023] Specifically, such as Figure 3 As shown, the input gear set 2 includes an input helical gear 21, an input wheel 22, and an input worm 23. The input worm 23 is sleeved on the output shaft of the motor 1. The input worm 23 meshes with the input helical gear 21 in parallel. One side of the input wheel 22 meshes with the input helical gear 21, and the other side of the input wheel 22 meshes with the drive wheel 31.

[0024] When the drive wheel 31 changes its rotation direction, it drives the reversing gear carrier 32 to swing, thereby causing the output component 4 to alternately mesh and transmit power between the first clutch gear 33 and the second clutch gear 34. During the reversing output, the time difference between the swinging and engaging of the reversing gear carrier 32 can be obtained, thus effectively determining that the output direction of the motor 1 has changed. This is particularly applicable to this embodiment, specifically as follows: Figure 4 As shown, the output component 4 consists of a rotating shaft 41, an output wheel 42, a limiting cam 43, and a limiting switch 44. The output wheel 42 and the limiting cam 43 are fixedly connected to both ends of the rotating shaft 41. The limiting switch 44 is located on one side of the limiting cam 43, and the protrusion of the limiting cam 43 can extend to the surface of the limiting switch 44 for contact. When the motor 1 undergoes a forward or reverse rotation, the limiting cam 43 still maintains the result of the limiting switch 44 being triggered. By utilizing the time difference of the swing engagement and disengagement of the reversing gear frame 32 during the reversing output, the forward or reverse rotation of the motor 1 can be effectively determined based on the time difference of the signal interval of the limiting switch 44.

[0025] Furthermore, when the drive wheel changes its rotation direction, it can cause the reversing gear frame to swing, thereby causing the output component to alternately mesh and transmit power between the first clutch gear and the second clutch gear. When the clutch function is required, the motor is powered off, and the output shaft is rotated with a wrench in the opposite direction of the output shaft's rotation before the power was cut off. This disengages the transmission wheel from the first and second clutch gears. At this time, the gear transmission in front of the transmission wheel is disconnected, allowing the wrench to be easily turned to manually rotate the output shaft and achieve the clutch effect.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A clutch structure, characterized in that: It includes a reversing clutch gear set, which includes a driving wheel, a reversing gear frame, a first clutch gear and a second clutch gear. A horizontally protruding central gear shaft is provided at the center of the driving wheel. The middle part of the gear frame is rotatably mounted on the central gear shaft. The first clutch gear and the second clutch gear are rotatably connected to the two ends of the gear frame respectively. The first clutch gear and the second clutch gear are both meshed with the central gear shaft. The driving wheel can output power alternately through the first clutch gear and the second clutch gear.

2. A clutch structure according to claim 1, characterized in that: The reversing gear frame is composed of a sleeve bottom plate and a limit top plate, both of which are "V"-shaped structures. Both ends of the sleeve bottom plate and the limit top plate are provided with shaft pins for fixed connection, and the first clutch gear and the second clutch gear are respectively rotatably sleeved inside the shaft pins.

3. Motor gearbox, characterized by: It comprises a motor, an input gear set, an output assembly and a housing, wherein a clutch structure according to any one of claims 1 to 2 is arranged between the input gear set and the output assembly, and the driving wheel transmits power to one side of the output assembly through a first clutch gear and a second clutch gear respectively.

4. The motor gearbox according to claim 3, characterized in that: The input gear set includes an input bevel gear, an input wheel and an input worm. The input worm is sleeved on the output shaft of the motor. The input worm is meshed with the input bevel gear in parallel. One side of the input wheel is meshed with the input bevel gear, and the other side of the input wheel is meshed with the driving wheel.

5. The motor gearbox according to claim 3, characterized in that: The output assembly includes a rotating shaft, an output wheel, a limit cam and a limit switch. The output wheel and the limit cam are respectively fixedly connected to the two ends of the rotating shaft. The limit switch is arranged on one side of the limit cam, and the protrusion of the limit cam can extend to the surface of the limit switch for abutment.

6. The motor gearbox according to claim 5, characterized in that: A transmission gear assembly is also provided between the reversing clutch gear set and the output assembly. The transmission gear assembly includes a first transmission wheel and a second transmission wheel. The first transmission wheel and the second transmission wheel are meshed for transmission. The first clutch gear and the second clutch gear can alternately mesh with the first transmission wheel, and the second transmission wheel is meshed for transmission with the output wheel.

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