CN210007551U

CN210007551U - kinds of driving device

Info

Publication number: CN210007551U
Application number: CN201920804718.4U
Authority: CN
Inventors: 孙勇; 俞锡鹏; 汪冰; 翁建君
Original assignee: Ningbo Dooya Mechanic and Electronic Technology Co Ltd
Current assignee: Ningbo Dooya Mechanic and Electronic Technology Co Ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-01-31
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses an kinds of drive arrangement, including actuating mechanism and clutch, actuating mechanism includes the motor, by two or more than two outputs of motor drive, its characterized in that clutch includes two separation and reunion drive mechanisms of independent control, and every separation and reunion drive mechanism's input is connected with actuating mechanism's wherein output.

Description

kinds of driving device

Technical Field

The utility model relates to an kinds of drive arrangement.

Background

The single-motor driven double-output electric actuator disclosed in the chinese patent application No. 200810017513.8, wherein a motor drives an intermediate shaft to rotate bidirectionally through a reduction gearbox and an electromagnetic clutch, the intermediate shaft is a driving shaft, the left shaft and the right shaft are driven shafts, and left and right gears, left and right driving discs, and left and right driving pins are symmetrically mounted and connected by using the intermediate shaft as an axis and provided with left and right angle sensors at tail ends thereof to obtain respective rotation angle signals, and the single-motor non-periodic vibration device disclosed in the chinese patent application No. 201010554850.8, comprises a base, and eccentric wheels, a transmission part and a motor are supported and fixed on the base through a bracket, wherein the transmission part comprises driving bevel gears, two driven bevel gears, two driving belt wheels, four driven belt wheels and clutches, and realizes the reverse rotation of two groups of eccentric wheels.

When the driving device with the design is used for driving two loads, such as opening and closing curtains, the curtains on two sides must be controlled to move simultaneously, independent opening and closing of the curtain on one side cannot be realized, and inconvenience is brought to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the problem that above-mentioned prior art exists, provide kinds of drive arrangement, can independently control two output ends to convenient to use.

The technical scheme adopted by the utility model for solving the technical problems is that driving devices comprise a driving mechanism and a clutch device, wherein the driving mechanism comprises a motor and two or more than two output ends driven by the motor, the clutch device comprises two or more than two clutch transmission mechanisms which are independently controlled, and the input end of each clutch transmission mechanism is connected with output ends of the driving mechanism.

Preferably, the driving mechanism is structured such that the driving mechanism includes a motor, a main gear disposed on an output shaft of the motor, and two or more than two pinions, each of the pinions is engaged with the main gear, and the pinions are output ends of the driving mechanism and connected to corresponding clutch transmission mechanisms respectively.

In order to facilitate the independent control of the clutch transmission mechanisms, each clutch transmission mechanism comprises a transmission shaft rotating synchronously with the input end, a connecting sleeve rotating synchronously with the transmission shaft and an electromagnetic clutch device for driving the input end to act, the connecting sleeve is the output end of the clutch transmission mechanism, the input end can be in the th position where the input end is separated from the pinion under the driving of the electromagnetic clutch device and in the second position where the input end is forced to move and is connected with the pinion to rotate synchronously, and the electromagnetic clutch devices of each clutch transmission mechanism are mutually independent.

According to the utility model discloses an aspects, clutch transmission's input is for being located the clutch gear of pinion below, electromagnetic clutch device is including the separation and reunion piece that can upwards remove when the circular telegram, clutch gear is connected with the separation and reunion piece, the separation and reunion piece keeps the downward movement trend.

Preferably, in order to facilitate the clutch gear to be engaged with or disengaged from the pinion gear when the clutch gear is lifted, internal teeth are formed on an inner peripheral wall of the pinion gear, the internal teeth are formed by radially outwardly recessing the inner peripheral wall of the pinion gear, and are formed in a hollow shape, and external teeth protruding outward are formed on an outer peripheral wall of the clutch gear, and the external teeth are inserted into corresponding internal teeth to be engaged with each other.

In order to facilitate the engagement of the clutch gear with the pinion gear when the clutch gear is raised and to avoid the abutment therebetween in the longitudinal direction, the bottom end of each internal tooth has an -th guide surface inclined gradually upward from the outer periphery, and the top end of each external tooth has a second guide surface inclined gradually upward from the outer periphery.

According to the utility model discloses an aspects in addition, clutch transmission's input is for arranging the transmission piece in the pinion in, clutch transmission still including set up in electromagnetic clutch device top, with electromagnetic clutch device through the magnetic attraction cooperation and the drive block that reciprocates, the upper portion and the transmission piece of drive block are connected and reciprocate in step, transmission piece and drive block keep the trend of rebound.

To facilitate the engagement of the pinion and the transmission block, the lower portion of the inner peripheral wall of the pinion is provided with an th projection projecting inwardly, the transmission block comprises a cylindrical transmission body and a second projection projecting outwardly and arranged on the lower portion of the outer peripheral wall of the transmission body, the th projection and the second projection are separated in the longitudinal direction when the transmission block is located at the th position, and the th projection and the second projection are at least partially overlapped in the longitudinal direction and abutted in the circumferential direction when the transmission block is located at the second position.

For make the transmission piece can transmit the moment of torsion to the transmission shaft, transmission main part cavity and open-top, the transmission shaft passes through the hub connection portion of bottom and is connected with the transmission piece, and upwards extends to the top of transmission piece and pinion, the hub connection portion is cylindrical setting in the transmission main part, is provided with outside bellied third lug on the periphery wall of hub connection portion, be provided with the breach that radially runs through the perisporium of transmission main part on the perisporium of transmission main part, the third lug is worn out from the breach, and with breach ascending both sides wall butt in week to make hub connection portion and transmission piece connect and synchronous rotation.

To ensure that the drive block is engaged with the pinion gear for synchronous rotation in the second position at step , the bottom of the notch of the drive body protrudes outward to form a fourth tab that disengages from the tab when the drive block is in the position and circumferentially abuts the tab when the drive block is in the second position.

Compared with the prior art, the utility model has the advantages of through setting up two or more than two independent control's clutching mechanism, can realize single motor many outputs, and every output can the independent control operation or separation, thereby satisfy the free independent control wherein arbitrary external load or the demand of coworkers control a plurality of external loads, because clutching structure and the coaxial setting of transmission shaft, motor output direct action has the drive gear in the clutching structure, avoided additionally setting up drive gear or transmission shaft, make this drive arrangement simple structure small and exquisite, the installation volume of this drive arrangement has been reduced, and electromagnetic clutch device is fast stable when switching operating condition, the operating stability of this drive arrangement has been improved.

Drawings

FIG. 1 is a schematic representation of an th embodiment of a drive assembly of the present invention in combination with an external transmission;

fig. 2 is an exploded schematic view of an th embodiment of the driving device of the present invention;

fig. 3 is a cross-sectional view of an th embodiment of a driving device of the motorized window treatment of the present invention;

FIG. 4 is an enlarged view of a portion I of FIG. 3;

FIG. 5 is an enlarged view of portion II of FIG. 3;

fig. 6 is a schematic view of a part of a clutch transmission mechanism according to an th embodiment of the driving device of the present invention;

fig. 7 is an exploded schematic view of a part of a clutch transmission mechanism according to the th embodiment of the driving device of the present invention;

fig. 8 is a partial schematic view of a second embodiment of the driving device of the motorized window treatment of the present invention;

FIG. 9 is a cross-sectional view of the drive of FIG. 8;

FIG. 10 is an exploded view of the drive assembly of FIG. 8 (hidden housing);

FIG. 11 is a schematic view of a pinion of the drive of FIG. 8;

fig. 12 is a schematic view of a clutch gear of the drive of fig. 8.

Detailed Description

The present invention will be described in further detail in with reference to the following embodiments.

Example

Referring to fig. 1, a driving device 2 of the present invention is schematically shown in combination with a transmission device 1, wherein the driving device 2 drives an external load, such as a curtain, through the transmission device 1.

Referring to fig. 2 to 7, the driving device 2 includes a case 21, a top cover 22 disposed on the top of the case 21, a driving mechanism disposed in the case 21, a clutch device 24, and a bottom cover 25 disposed above the top cover 22, the bottom cover 25 and the top cover 22 being used for connection with the transmission 1. The top cover 22 extends partially into the tank 21. The driving mechanism includes a motor 231, a main gear 232 provided on an output shaft 2311 of the motor 231, and sub-gears 233 located at both sides of the main gear 232 and engaged with each other, respectively, the output shaft 2311 of the motor 231 extending in a longitudinal direction. As seen in fig. 3, the two pinions 233 are respectively disposed at left and right sides of the main gear 232, and when the main gear 232 rotates, the two pinions 232 rotate in opposite directions, so that the two loads can be driven to rotate in opposite directions.

The clutch device 24 is disposed between the motor 231 and the top cover 22, and includes a housing 241 and two clutch transmission mechanisms 242 with the same structure, wherein clutch transmission mechanisms 242 are connected with inputs of the transmission device 1, and clutch transmission mechanisms 242 are connected with another inputs of the transmission device 1, the upper portion of the housing 241 is connected with the lower portion of the top cover 22, the motor 231 is connected with the bottom portion of the housing 241, and an output shaft 2311 of the motor 231 extends upward into the housing 241, the top and bottom portions of the output shaft 2311 of the motor 231 are respectively sleeved with a bearing 2312 and a second bearing 2313 fixed in the housing 241 so as to position the output shaft 2311, the clutch transmission mechanisms 242, the main gear 232 and the sub-gear 233 are disposed in the housing 241 (wherein the main gear 232 and the sub-gear 233 are rotatably disposed in the housing 241, and the rotating shafts thereof are both longitudinal), and the outer periphery of the sub-gear 233 is sleeved with a third bearing 2333 fixed in the housing 241 so as to position the sub-gear 233 and facilitate the rotation thereof.

The lower portion of the inner peripheral wall of the pinion 233 is preferably provided with th protrusions 2331 protruding inward near the bottom of the inner peripheral wall, and in this embodiment, th protrusions 2331 are provided with four protrusions evenly and at intervals in the circumferential direction.

The main gear 232 is always meshed with the pinion 233, each pinion 233 serves as an output end of a driving mechanism and is respectively matched with clutch transmission mechanisms 242, each clutch transmission mechanism 242 comprises an electromagnetic clutch device 2421, a driving block 2422, a transmission block 2423, a transmission shaft 2424 and a connecting sleeve 2425, the electromagnetic clutch device 2421 is fixedly arranged in the shell 241, the driving block 2422 is made of magnetic materials, the driving block 2422 is arranged above the electromagnetic clutch device 2421 at intervals and is matched with the electromagnetic clutch device 2421 through magnetic attraction, the driving block 2422 is connected with the transmission block 2423 so as to move up and down synchronously, in the embodiment, the upper part of the driving block 2422 is smaller than the lower part, the lower part of the driving block 2422 is matched with the electromagnetic clutch device 2421, the upper part of the driving block 2422 penetrates into the transmission block 2423 upwards, the part of the driving block 2422, the outer periphery of the driving block 2422 is sleeved with a clamp spring 2426 so as to relatively fix the driving block 2 and the electromagnetic clutch device 2423, and the driving block 2421 is capable of moving downwards synchronously when the driving block 2421 is in an electrified state.

The transmission block 2423 is used as an input end of the clutch transmission mechanism 242, is arranged inside the pinion 233, and comprises a hollow cylindrical transmission body 24231 with an open top, and a second lug 24232 which is arranged at the lower part of the outer peripheral wall of the transmission body 24231 and protrudes outwards, the transmission body 24231 is arranged at the inner side of the first lug 23354, preferably, the transmission body 24231 and the second lug 2331 of the are arranged at intervals, the transmission body 24231 can also be in contact with the second lug 23382, the friction force of the contact is smaller than the force of the pinion 233 driving the transmission body 24231 to rotate, the second lug 24232 extends along the circumferential direction of the outer peripheral wall of the transmission body 24231, in the embodiment, the second lug 24232 is provided with two parts, and is symmetrically arranged on the outer peripheral wall of the transmission body 24231, the second lug 24232 is used for matching with the lug 2331 of the pinion 233, the second lug 23356 is arranged with the second lug 24232 in a staggered mode, namely, the projections of the first lug 23329 lug and the second lug 24232 on the horizontal plane are not coincident with the second lug 23325 after the installation, and the second lug 242233 is staggered.

When the actuator block 2423 is located at the initial th position, the second protrusion 24232 is located above the th protrusion 2331, i.e., the actuator block 2423 is disengaged from the pinion 233, when the actuator block 2423 is moved downwards by a certain distance such that the second protrusion 24232 and the th protrusion 2331 at least partially overlap in the longitudinal direction, wherein the two th protrusions 2331 are abutted (end-abutted in the circumferential direction) against the second protrusions 24232 at the corresponding positions, such that the actuator block 2423 is located at the second position engaged with the pinion 233, whereby the actuator block 2423 is driven to rotate synchronously when the pinion 233 rotates, the distance between the bottom surface of the drive block 2422 and the top surface of the electromagnetic clutch device 2421 is not less than the distance between the second protrusion 24232 and the th protrusion 2331 (distance in the longitudinal direction), ensuring that when the bottom surface of the drive block 2422 and the top surface of the electromagnetic clutch device 2421 are engaged, the second protrusion 24232 and the third protrusion 2331 at least partially overlap in the longitudinal direction.

In order to keep the driving block 2422 and the transmission block 2423 moving upwards, the driving block 2422 and the transmission block 2423 are arranged above the electromagnetic clutch device 2421 at intervals, and the transmission block 2423 is prevented from moving downwards under the action of gravity, so that the transmission block 2423 and the pinion 233 always keep synchronous rotation. A return spring 2429 is arranged in the electromagnetic clutch device 2421, the bottom of the return spring 2429 abuts against the electromagnetic clutch device 2421, and the top of the return spring 2429 abuts against the bottom of the driving block 2422, so that the driving block 2422 and the transmission block 2423 keep the trend of upward movement.

The bottom of the transmission shaft 2424 is provided with a shaft connecting part 24241, and the shaft connecting part 24241 is cylindrical and is connected with the transmission main body 24231, so that the transmission shaft 2424 can be driven to rotate by the rotation of the transmission block 2423. In the present embodiment, the connection structure is that a third protrusion 24242 protruding outward is provided on the outer circumferential wall of the shaft connecting part 24241, and in the present embodiment, the third protrusion 24242 has two and is symmetrically provided on the outer circumferential wall of the shaft connecting part 24241. The transmission body 24231 has two notches 24233 on the peripheral wall, and preferably, the notches 24233 penetrate through the peripheral wall of the transmission body 24231 in the radial direction. The shaft connecting part 24241 is disposed inside the transmission main body 24231, the transmission shaft 2424 extends upwards to the transmission main body 24231 and the pinion 233, and each third bump 24242 penetrates through the notch 24233 to abut against two side walls on the circumference of the notch 24233, so that when the transmission block 2423 rotates, the transmission shaft 2424 can be driven to rotate. The outer circumference of the driving shaft 2424 is sleeved with a fourth bearing 2427 fixed in the housing 241 so as to position the driving shaft 2424, the fourth bearing 2427 is disposed above the shaft connecting part 24241, and the driving shaft 2424 can be longitudinally limited so as to prevent the shaft connecting part 24241 of the driving shaft 2424 from being separated from the driving block 2423. The shaft connecting part 24241 can longitudinally limit the position of the transmission block 2423, that is, the highest position of the upward movement of the transmission block 2423 is that the bottom surface of the shaft connecting part 24241 is abutted against the inner bottom surface of the transmission main body 24231 of the transmission block 2423.

The bottom of the notch 24233 of the transmission body 24231 protrudes outwards to form a fourth bump 24234, in the present embodiment, the fourth bump 24234 has two symmetrically arranged bumps, and is uniformly and alternately arranged along the circumference of the outer circumferential wall of the transmission body 24231 from the second bump 24232 , the second bump 24232 and the fourth bump 24234 are alternately arranged, that is, the fourth bump 24234 is adjacent to the second bump 24232, and the second bump 24232 is adjacent to the fourth bump 24234. similarly, in the initial position, the fourth bump 24234 is located above the bump 2331 of the pinion 233. when the transmission block 2423 moves downwards for a certain distance, the fourth bump 24234 at least partially overlaps with the fifth bump of the pinion 233 in the longitudinal direction, wherein the two fifth bumps 2331 of the pinion are abutted against the fourth bumps 24234 in corresponding positions (the ends in the circumferential direction), and the further ensures that the rotation of the pinion 233 can drive the rotation of the transmission block 2423.

A connecting sleeve 2425 serving as an output end of the clutch transmission mechanism 242 is arranged on the top of the transmission shaft 2424 and is linked with the transmission shaft 2424, wherein the connecting sleeves 2425 of clutch transmission mechanisms 242 are connected with input ends of the transmission device 1, and the connecting sleeves 2425 of another clutch transmission mechanisms 242 are connected with another input ends of the transmission device 1.

The clutch transmission 242 may further include a stroke detecting means, as in the present embodiment, an optical encoder 2428 provided on the transmission shaft 2424, so as to detect the stroke of the motor 231. The clutch device 24 further includes a control circuit board 243 for communicating and controlling the opening and closing of the electromagnetic clutch device 2421 and the operation of the motor 231, so as to realize remote control.

When the motor 231 is operated, the output shaft 2311 thereof drives the main gear 232 to rotate, so that the pinion 233 engaged with the main gear 232 rotates, at this time, if the electromagnetic clutch device 2421 of the clutch transmission mechanism 242 is opened, namely the electromagnetic clutch device 2421 is electrified, referring to fig. 4, the magnetic attraction force generated by the electromagnetic clutch device attracts the driving block 2422 to be downwards attracted with the electromagnetic clutch device 2421, so that the driving block 2423 connected with the driving block 2422 moves downwards, so that the second protrusion 24232 and the fourth protrusion 24234 are respectively at least partially overlapped with the protrusion 2331 in the longitudinal direction to be abutted in the circumferential direction, the rotation of the pinion 233 can drive the driving block 2423 to rotate (to realize the "closing" of the clutch action), and further drive the driving shaft 2424 to rotate, so that the connecting sleeve 2425 connected with the driving shaft 4 rotates, and in the process, the return spring 2429 is compressed.

When the electromagnetic clutch 2421 is turned off, that is, the electromagnetic clutch 2421 is turned off, such as in the non-use state when the power is cut off or the power is manually controlled, referring to fig. 5, the magnetic attraction force on the driving block 2422 is not generated, and at this time, the driving block 2422 is pushed up by the restoring force of the return spring 2429, so that the driving block 2423 connected with the driving block 2422 moves upward, so that the second protrusion 24232 and the fourth protrusion 24234 are longitudinally staggered from the protrusion 2331 and do not abut against each other, and the rotation of the pinion 233 will not drive the driving block 2423 to rotate (to realize the "off" of the clutch function).

The electromagnetic clutch devices 2421 of the two clutch transmission mechanisms 242 can be independently powered on and powered off, so that independent motion control of the two loads is achieved.

When power is off, the load can be manually operated at this time because the electromagnetic clutch 2421 no longer generates magnetic attraction force on the drive block 2422.

Example two

Referring to fig. 8 to 12, in the present embodiment, the difference from the above-mentioned embodiment is that each clutch transmission mechanism 242 uses a clutch gear 2422 'instead of the driving block 2422 and the transmission block 2423, the transmission shaft 2424 is connected with the clutch gear 2422' for synchronous rotation, and a radially outwardly recessed locking groove 24221 'is provided on the inner circumferential wall of the clutch gear 2422' for cooperating with a third protrusion 24242 at the bottom of the transmission shaft 2424, so as to achieve connection and synchronous rotation.

The electromagnetic clutch device 2421 includes, in addition to the above-described return spring 2429, a switch housing 24211 having a coil and an iron core therein, which is energized to generate a magnetic field, and a clutch block 24212 which passes through the switch housing 24211 in a longitudinal direction (which is operated by the magnetic field). A clutch gear 2422 'is disposed above a switch housing 24211 of the electromagnetic clutch device 2421, the bottom of the clutch gear 2422' can be connected with a clutch block 24212 of the electromagnetic clutch device 2421 through a pin or the like, the bottom end of the clutch block 24212 penetrates below the switch housing 24211, and a return spring 2429 abuts between the bottom end of the clutch block 24212 and the bottom of the switch housing 24211, so that the clutch block 24212 keeps a downward movement tendency. A circlip, a step, or the like may be provided at the bottom end of clutch block 24212 to abut against return spring 2429.

Pinion 233 is located above corresponding clutch gear 2422 'and can be engaged with (engaged with) or disengaged from (disengaged from) clutch gear 2422', transmission shaft 2424 described above passes upward through pinion 233, clutch block 24212 moves upward in the power-on state of electromagnetic clutch device 2421 to drive clutch gear 2422 'to move upward in the second position to engage with pinion 233, at which time return spring 2429 is compressed, and clutch block 24212 moves downward under the action of the return force of return spring 2429 to drive clutch gear 2422' to move downward in the th position to disengage from pinion 233 in the power-off state of electromagnetic clutch device 2421.

Inner teeth 2334 are formed on the inner peripheral wall of the pinion 233, the inner teeth 2334 are formed by recessing the inner peripheral wall of the pinion 233 radially outward and are hollow, outer teeth 24222 'protruding outward are formed on the outer peripheral wall of the clutch gear 2422' and are solid, the outer teeth 24222 'are inserted into the respective inner teeth 2334 to be engaged with each other, in order to facilitate the clutch gear 2422' to be engaged with the pinion 233 while rising, and to prevent the abutment therebetween in the longitudinal direction, the bottom end of each inner tooth 2334 has a -th guide surface 2335 inclined inward and gradually upward from the outer periphery, and the top end of each outer tooth 24222 'has a second guide surface 24223' inclined inward and gradually upward from the outer periphery, whereby when the inner teeth 2334 and the outer teeth 24222 'come into contact with each other up and down, the guide surfaces can play a good role of guiding the outer teeth 24222' smoothly into the inner teeth 2334.

To avoid the pinion 233 and clutch gear 2422 ' from becoming disengaged, there is clearance between the radially outer end 24224 ' of each outer tooth 24222 ' and the radially outer end 2336 of the inner teeth 2334 of the pinion 233.

When the motor 231 is operated, an output shaft 2311 thereof drives the main gear 232 to rotate, so that the sub-gear 233 engaged with the main gear 232 rotates. At this time, if the electromagnetic clutch 2421 of the clutch transmission mechanism 242 is powered on, referring to the right clutch gear 2422 'in fig. 11 and 12, the clutch block 24212 of the right electromagnetic clutch 2421 moves upward to drive the right clutch gear 2422' to move upward, so that the clutch gear 2422 'is engaged with the corresponding pinion 233, and thus the rotation of the pinion 233 can drive the clutch gear 2422' to rotate (to realize "on" of the clutch action), and further drive the transmission shaft 2424 to rotate, so that the connection sleeve 2425 connected with the transmission shaft 2424 rotates. During this process, return spring 2429 is compressed.

When the electromagnetic clutch 2421 is turned off, i.e. the electromagnetic clutch 2421 is not powered on, such as an unused state when the power supply is cut off or the power supply is manually controlled, referring to the left clutch gear 2422 ' in fig. 11 and 12, the reset force of the left reset spring 2429 causes the left clutch block 24212 to move downwards, so as to drive the left clutch gear 2422 ' to move downwards, and at this time, the clutch gear 2422 ' is disengaged from the pinion 233 (to realize "separation" of the clutch effect), and the rotation of the pinion 233 will not drive the transmission shaft 2424 to rotate. In the above process, the electromagnetic clutch device 2421 can be independently controlled to be powered on and powered off, so that the clutch mechanisms 242 on the left and right sides can be independently operated.

In the above embodiment, main gears 232 drive two sub-gears 233 to operate, alternatively, main gears 232 may drive more than two sub-gears 233 to operate, a plurality of sub-gears 233 are arranged at intervals along the circumferential direction of the main gears 232, and each sub-gear 233 is engaged with the main gear 232.

Claims

driving device, which comprises a driving mechanism and a clutch device, wherein the driving mechanism comprises a motor (231) and two or more output ends driven by the motor (231), and is characterized in that the clutch device (24) comprises two or more clutch transmission mechanisms (242) controlled independently, and the input end of each clutch transmission mechanism (242) is connected with output ends of the driving mechanism.
2. The drive device according to claim 1, characterized in that: the driving mechanism comprises a motor (231), a main gear (232) arranged on an output shaft (2311) of the motor (231), and two or more auxiliary gears (233), wherein each auxiliary gear (233) is meshed with the main gear (232), and the auxiliary gears (233) are output ends of the driving mechanism and are connected with corresponding clutch transmission mechanisms (242).
3. The driving device according to claim 2, wherein each clutch transmission mechanism (242) comprises a transmission shaft (2424) rotating synchronously with the input end, a connecting sleeve (2425) rotating synchronously with the transmission shaft (2424), and an electromagnetic clutch device (2421) for driving the input end to act, the connecting sleeve (2425) is the output end of the clutch transmission mechanism (242), the input end can be driven by the electromagnetic clutch device (2421) to be in the th position disengaged from the pinion (233) and to be forced to move upwards to be engaged with the pinion (233) for synchronous rotation, and the electromagnetic clutch devices (2421) of each clutch transmission mechanism (242) are independent of each other.
4. The drive device according to claim 3, characterized in that: the input end of the clutch transmission mechanism (242) is a clutch gear (2422 ') located below the pinion (233), the electromagnetic clutch device (2421) comprises a clutch block (24212) capable of moving upwards when powered on, the clutch gear (2422') is connected with the clutch block (24212), and the clutch block (24212) keeps a downward movement trend.
5. The drive device according to claim 4, characterized in that: inner teeth (2334) are formed on the inner circumferential wall of the pinion (233), the inner teeth (2334) are formed by radially and outwardly recessing the inner circumferential wall of the pinion (233) and are hollow, and outer teeth (24222 ') protruding outwards are formed on the outer circumferential wall of the clutch gear (2422 '), and the outer teeth (24222 ') can be inserted into the corresponding inner teeth (2334) to be meshed with each other.
6. The driving device as claimed in claim 5, wherein the bottom end of each inner tooth (2334) has an th guide surface (2335) inclined gradually upward from the outer circumference, and the top end of each outer tooth (24222 ') has a second guide surface (24223') inclined gradually upward from the outer circumference.
7. The drive device according to claim 3, characterized in that: the input end of the clutch transmission mechanism (242) is a transmission block (2423) arranged in the pinion (233), the clutch transmission mechanism (242) further comprises a driving block (2422) which is arranged above the electromagnetic clutch device (2421) and is matched with the electromagnetic clutch device (2421) through magnetic attraction to move up and down, the upper portion of the driving block (2422) is connected with the transmission block (2423) to move up and down synchronously, and the transmission block (2423) and the driving block (2422) keep the trend of moving up.
8. The driving device according to claim 7, wherein the lower portion of the inner peripheral wall of the pinion (233) is provided with an th protrusion (2331) protruding inward, the transmission block (2423) comprises a cylindrical transmission body (24231) and a second protrusion (24232) protruding outward and arranged on the lower portion of the outer peripheral wall of the transmission body (24231), the th protrusion (2331) and the second protrusion (24232) are separated in the longitudinal direction when the transmission block (2423) is located at the position, and the th protrusion (2331) and the second protrusion (24232) are at least partially overlapped in the longitudinal direction and abutted in the circumferential direction when the transmission block (2423) is located at the second position.
9. The drive device according to claim 8, characterized in that: the transmission main body (24231) is hollow and is opened at the top, the transmission shaft (2424) is connected with the transmission block (2423) through a shaft connecting part (24241) at the bottom and extends upwards to the transmission block (2423) and the upper part of the pinion (233), the shaft connecting part (24241) is arranged in the transmission main body (24231) in a cylindrical shape, a third lug (24242) protruding outwards is arranged on the outer peripheral wall of the shaft connecting part (24241), a notch (24233) penetrating through the peripheral wall of the transmission main body (24231) in the radial direction is arranged on the peripheral wall of the transmission main body (24231), the third lug (24242) penetrates out of the notch (24233) and is abutted against two side walls in the peripheral direction of the notch (24233), and therefore the shaft connecting part (24241) and the transmission block (2423) are connected to rotate synchronously.
10. The drive device as claimed in claim 9, characterized in that the bottom of the recess (24233) of the gearing body (24231) protrudes outwards to form a fourth cam (24234), the fourth cam (24234) being disengaged from the cam (2331) when the gearing block (2423) is in the position and being in circumferential abutment with the cam (2331) when the gearing block (2423) is in the second position.