Transmission device and transmission equipment

Abstract

The present invention discloses a transmission device, comprising: a driving shaft; an outer sleeve connected to the driving shaft, the outer sleeve is provided with a slider; an inner sleeve rotatably connected to the outer sleeve, the inner sleeve is provided with a limit portion; a first output shaft connected to the inner sleeve and rotating synchronously; the driving shaft drives the outer sleeve and the slider to rotate, the slider abuts against the limit portion, and the slider and the limit portion switch between relative stillness and sliding until the slider disengages from the limit portion. The present invention adopts a matching structure between the slider and the limit portion of the inner sleeve, and the friction between the slider and the limit portion drives the first output shaft to rotate. When the speed ratio of the gear mechanism is too large, the rotational force of the driving shaft increases, and the slider disengages from the slide groove, which can avoid damage to the gears inside the gear mechanism, breakage of the driving shaft, and damage to the rotating parts. The structure is simple, cost-saving and reliable.

Description

Technical Field

[0001] The present invention relates to the field of mechanical transmission, and in particular to a transmission device and a transmission equipment. Background Art

[0002] Transmission equipment is an important part of the mechanical system, mainly used to transmit power and motion to achieve the working purpose of the mechanical equipment. The power generated by the power mechanism such as the motor is adjusted to the output speed and torque through the gearbox, and then transmitted to the actuator to complete the predetermined function.

[0003] However, in the process of the gearbox transmitting power to the actuator, when the gearbox speed ratio is too large, the actuator will be subjected to a large reaction force, which will be transmitted to the gears inside the gearbox and the output shaft of the gearbox, thereby causing damage to the gears inside the gearbox, the output shaft of the gearbox and the actuator. Summary of the invention

[0004] The purpose of the present invention is to solve the technical problems existing in the prior art that the speed ratio of the gear mechanism is too large and the gears and the output shaft are easily damaged when subjected to excessive external force impact.

[0005] The present application provides a transmission device, comprising:

[0006] Active shaft;

[0007] An outer sleeve connected to the driving shaft, the outer sleeve being provided with a sliding block;

[0008] An inner sleeve rotatably connected to the outer sleeve, the inner sleeve being provided with a limiting portion;

[0009] A first output shaft connected to the inner sleeve and rotating synchronously;

[0010] The driving shaft drives the outer sleeve and the slider to rotate, the slider abuts against the limiting portion, and the slider and the limiting portion switch between relative stillness and sliding until the slider is separated from the limiting portion.

[0011] Furthermore, the outer sleeve is a hollow structure with one end open, for inserting the inner sleeve and the first output shaft, and the outer sleeve is fixedly connected to the driving shaft, and the outer sleeve rotates synchronously with the driving shaft.

[0012] Furthermore, two driving components are relatively arranged in the outer kit, and the driving components include a slider and a first elastic component. The first elastic component is arranged between the slider and the inner wall of the outer kit. The size of the slider matches the size of the slide groove of the inner kit, and the slider slides with the inner kit through the slide groove.

[0013] Furthermore, the inner kit is a hollow cylindrical structure with openings at both ends, the first output shaft passes through the inner kit longitudinally, and the inner kit is fixedly connected to the first output shaft, and the inner kit rotates synchronously with the first output shaft.

[0014] Furthermore, the inner sleeve includes two limiting portions relatively arranged on the peripheral wall, the limiting portions are arc-shaped, and the limiting portions are provided with an arc-shaped sliding groove penetrating along the circumference of the inner sleeve for sliding connection with the slider; the sliding groove includes a first end arranged close to the axis of the inner sleeve and a second end arranged away from the axis of the inner sleeve, and the sliding groove extends from the first end to the direction of the second end.

[0015] Furthermore, the driving assembly also includes a driving block, which is fixedly connected to the first elastic component and the first connecting rod. The surface where the driving block is connected to the first connecting rod is an arcuate surface, and the shape of the arcuate surface is matched with the inner wall of the outer sleeve.

[0016] Furthermore, the direction of the reaction force received by the slider is perpendicular to the surface of the driving block facing the slider.

[0017] Furthermore, the driving assembly also includes an adjusting member, which is sleeved on the first connecting rod of the driving assembly and is used to adjust the distance between the sliding block and the axis of the inner sleeve.

[0018] Furthermore, the adjusting member includes a first adjusting member and a second adjusting member, the first adjusting member is located outside the outer sleeve, and the second adjusting member is located between the driving block and the outer sleeve.

[0019] The present invention also provides a transmission device, comprising the transmission device described above, and also comprising a first driving mechanism, a gear mechanism and a rotating member, wherein the output end of the first driving mechanism is connected to the gear mechanism, and the transmission device is connected between the gear mechanism and the rotating member.

[0020] Compared with the prior art, the present invention adopts a matching structure between the slider and the limiting part of the inner set, and the first output shaft is driven to rotate by the friction force between the slider and the limiting part. When the speed ratio of the gear mechanism is too large, the rotational force of the driving shaft increases, and the slider disengages from the slide groove, which can avoid damage to the gears inside the gear mechanism, breakage of the driving shaft, and damage to the rotating parts. The invention also has a simple structure, saves costs, and has high reliability.

[0021] In addition, the matching structure of the driving block, the first connecting rod and the adjusting piece of the driving assembly adopted in the present invention can adjust the distance between the slider and the axis center of the inner kit by controlling the position of the adjusting piece on the first connecting rod, and then adjust the friction force between the slider and the slide groove, so as to adapt to a larger range of reaction force on the first output shaft.

[0022] In addition, the present invention adopts the spike structure of the watering member, and through the rotational force provided by the rotating member, the water in the rotating member is sprayed out from the spike of the rubber member to cool and lubricate the convex teeth of the rotating member.

[0023] In addition, the control device of the first driving mechanism, control switch, sensor and controller adopted in the present invention enables the staff to be alerted to the slippery state of the slider from the limit portion, so that the staff can more intuitively feel the impact of the construction on the transmission equipment, adjust the construction conditions in time, protect the transmission equipment, improve the safety of construction, and save construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention.

[0025] Figure 1 It is an overall schematic diagram of the transmission device of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the transmission device of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the inner kit of the present invention;

[0028] Figure 4 is a schematic diagram of the structure of the drive assembly of the present invention;

[0029] Figure 5 It is a schematic diagram of the assembly structure of the second bearing and the bottom shell of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the bottom shell of the present invention;

[0031] Figure 7 It is a schematic diagram of the assembly of the rotating member and the sprinkler member of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the sprinkler of the present invention.

[0033] Reference numerals include:

[0034] First driving mechanism 1; gear mechanism 2;

[0035] Transmission device 3; driving shaft 31;

[0036] Transmission assembly 32; outer assembly 321; driving assembly 3211; first elastic component 3212; slider 3213; driving block 3214; first connecting rod 3215; adjusting member 3216; first adjusting member 3217; second adjusting member 3218;

[0037] Inner sleeve 322; through hole 3221; stopper 3222; slide groove 3223; first end 3224; second end 3225;

[0038] A first output shaft 33;

[0039] First bearing 34; second bearing 35; bottom shell 36; shaft hole 361;

[0040] Rotating member 4; water sprinkling member 41; rubber member 411; spike portion 412. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] like Figure 1 As shown, the transmission device of this embodiment includes a first driving mechanism 1, a gear mechanism 2, a transmission device 3 and a rotating member 4. The first driving mechanism 1 is connected to an external power source and is used to drive the rotating member 4 to rotate; the gear mechanism 2 is connected to the output end of the first driving mechanism 1, and is used to transmit the power of the first driving mechanism 1, and to reduce the rotation speed while increasing the torque; one end of the transmission device 3 is connected to the gear mechanism 2, and the other end is connected to the rotating member 4; the rotating member 4 is used to rotate and punch holes in the pipe wall of the pipeline. It should be noted that the rotating member 4 can also be engaged with other rotating shafts to transmit power.

[0043] like Figures 1 to 2As shown, the transmission device 3 includes a driving shaft 31, a transmission assembly 32 and a first output shaft 33. The driving shaft 31 has a circular and cylindrical cross-section. One end of the driving shaft 31 is connected to the output shaft of the gear mechanism 2, and the other end is connected to the transmission assembly 32, for transmitting the power of the gear mechanism 2. The transmission assembly 32 is slidably connected to the first output shaft 33, and drives the first output shaft 33 to rotate. The first output shaft 33 has a circular and cylindrical cross-section. The first output shaft 33 is fixedly connected to the rotating member 4, so that the first output shaft 33 drives the rotating member 4 to rotate synchronously. It should be noted that the driving shaft 31 can also be integrally arranged with the output shaft of the gear mechanism 2; the first output shaft 33 can be integrally connected to the rotating member 4, or can be detachably fixedly connected.

[0044] The transmission assembly 32 includes an outer assembly 321, an inner assembly 322 and a driving assembly 3211. The outer assembly 321 is a hollow structure with one end open and is cylindrical. The inner assembly 322 and the first output shaft 33 are inserted into the hollow structure. The outer assembly 321 is fixedly connected to the driving shaft 31 so that the outer assembly 321 and the driving shaft 31 rotate synchronously.

[0045] Two driving components 3211 are arranged opposite to each other in the outer set 321, and the driving components 3211 include a slider 3213 and a first elastic component 3212, and the first elastic component 3212 is arranged between the slider 3213 and the inner wall of the outer set 321. The slider 3213 has a square cross section, and the size of the slider 3213 matches the size of the slide groove 3223 of the inner set 322, and the slider 3213 slides with the inner set 322 through the slide groove 3223.

[0046] The inner sleeve 322 is a hollow cylindrical structure with two ends opened, so that the first output shaft 33 can pass through the inner sleeve 322 longitudinally. The inner sleeve 322 is fixedly connected to the first output shaft 33 so that the inner sleeve 322 and the first output shaft 33 rotate synchronously.

[0047] The inner set 322 includes two limiting parts 3222 arranged on the peripheral wall opposite to each other, and the limiting parts 3222 are arc-shaped. The limiting parts 3222 are provided with an arc-shaped slide groove 3223 that penetrates along the circumference of the inner set 322, and are used for sliding connection with the slider 3213. The slide groove 3223 includes a first end 3224 arranged near the axis of the inner set 322 and a second end 3225 arranged away from the axis of the inner set 322, and the slide groove 3223 extends from the first end 3224 to the direction of the second end 3225. Of course, the inclined slide groove 3223 can also be an inclined plane. Further, the force applied by the slider 3213 to the slide groove 3223 is perpendicular to the inclined surface of the slide groove 3223.

[0048] The slider 3213 slides from the first end 3224 of the slide slot 3223 to the second end 3225, and a friction force is generated between the force applied to the slider 3213 by the first elastic component 3212 and the slide slot 3223. The active shaft 31 drives the slider 3213 to rotate, and the slider 3213 starts to slide from the first end 3224 in the slide slot 3223, and the slider 3213 abuts against the slide slot. When the friction force is less than or equal to the reaction force received by the first output shaft 33, the first output shaft 33 remains stationary; when the rotational force of the active shaft 31 increases to a certain value, when the friction force is greater than the reaction force received by the first output shaft 33, the slider 3213 rotates synchronously with the first output shaft 33; when the reaction force received by the first output shaft 33 increases and is greater than the rotational force of the active shaft 31, The slider 3213 slides toward the second end 3225 of the slide slot 3223, that is, the slider 3213 moves in the direction away from the axis of the inner kit 322, the first elastic component 3212 is compressed, and the friction between the slider 3213 and the slide slot 3223 increases until the friction is greater than the reaction force on the first output shaft 33 again, and the slider 3213 rotates synchronously with the first output shaft 33; as the reaction force on the first output shaft 33 increases, the above steps are repeated until the slider 3213 is separated from the second end 3225 of the slide slot 3223. After the slider 3213 is separated from the slide slot 3223, the first elastic component 3212 resumes the extended state, and as the slider 3213 rotates, the slider 3213 enters the slide slot 3223 of another limiting portion 3222 again. It should be noted that the driving assembly 3211 and the limiting portion 3222 of the inner kit 322 can be relatively provided with multiple.

[0049] Compared with the prior art, this embodiment adopts the structure of the slider 3213 and the first elastic component 3212, and the matching structure with the limiting portion 3222 of the inner kit 322. The slider 3213 and the limiting portion 3222 drive the first output shaft 33 to rotate through the friction force. When the speed ratio of the gear mechanism 2 is too large, the rotational force of the driving shaft 31 increases, and the slider 3213 disengages from the slide groove 3223, which can avoid damage to the gears inside the gear mechanism 2, breakage of the driving shaft 31, and damage to the rotating part 4. In addition, the structure is simple, cost-saving, and reliability is high.

[0050] Another embodiment of the matching structure of the slider 3213 and the limiting portion 3222, the slider 3213 is trapezoidal and made of hard rubber, the cross-section of the slide groove 3223 of the limiting portion 3222 is trapezoidal, the slider 3213 matches the shape of the slide groove 3223, the inclined side wall of the slider 3213 abuts against the inclined side wall of the slide groove 3223, thereby generating friction. When the friction between the slider 3213 and the slide groove 3223 is greater than the reverse force of the first output shaft 33, the slider 3213 drives the first output shaft 33 to rotate; when the reverse force of the first output shaft 33 is greater than the friction between the slider 3213 and the slide groove 3223, the slider 3213 slides in the slide groove 3223 toward the short side of the slide groove 3223, and as the squeezing force of the slide groove 3223 on the slider 3213 increases, the slider 3213 is compressed, and the friction between the slider 3213 and the slide groove 3223 increases until the friction is greater than the reverse force of the first output shaft 33, and the slider 3213 drives the first output shaft 33 to rotate. The above process is repeated until the slider 3213 is disengaged from the slide groove 3223.

[0051] like Figures 2 to 4 As shown, the driving assembly 3211 further includes a driving block 3214, a first connecting rod 3215 and an adjusting member 3216. The driving block 3214 is fixedly connected to the first elastic component 3212 and the first connecting rod 3215. The side wall of the driving block 3214 facing the first elastic component 3212 is a plane, and the first elastic component 3212 is arranged on the plane. The surface of the driving block 3214 connected to the first connecting rod 3215 is an arc surface, and the shape of the arc surface is arranged in coordination with the inner wall of the outer sleeve 321. Further, the direction of the force applied by the first elastic component 3212 to the slider 3213 is perpendicular to the surface of the driving block 3214 facing the slider 3213 and the slide groove 3223. Of course, the surface of the driving block 3214 facing the first elastic component 3212 can also be an arc; the surface of the driving block 3214 facing the first connecting rod 3215 can also be a plane.

[0052] The first connecting rod 3215 is cylindrical and has a threaded peripheral wall. The outer sleeve 321 is provided with two through holes 3221 opposite to each other. One end of the first connecting rod 3215 extends into the outer sleeve 321 through the through hole 3221 and is fixedly connected to the driving block 3214. The other end of the first connecting rod 3215 is located outside the outer sleeve 321.

[0053] The adjusting member 3216 is sleeved on the first connecting rod 3215. By controlling the position of the adjusting member 3216 on the first connecting rod 3215, the distance between the slider 3213 and the axis of the inner kit 322 is adjusted, thereby adjusting the friction between the slider 3213 and the slide groove 3223, so as to adapt to a larger range of reaction force on the first output shaft 33.

[0054] like Figure 4 As shown, the cross section of the adjusting member 3216 is polygonal, and the adjusting member 3216 includes a first adjusting member 3217 and a second adjusting member 3218, the first adjusting member 3217 and the second adjusting member 3218 are sleeved on the first connecting rod 3215, the first adjusting member 3217 is located outside the outer sleeve 321, and the second adjusting member 3218 is located between the driving block 3214 and the outer sleeve 321. Further, the adjusting member 3216 is a nut. As another embodiment, the adjusting member 3216 can also be a limit rod, and a plurality of connecting holes are axially spaced on the first connecting rod 3215, and the limit rod is inserted into the connecting holes. As another embodiment, the second adjusting member 3218 can also be a second elastic component, and the second elastic component abuts against the inner wall of the outer sleeve 321 and the driving block 3214.

[0055] like Figure 2 , 5 As shown in Figures 6 and 7, the transmission assembly 32 further includes a first bearing 34, a second bearing 35 and a bottom shell 36. The first bearing 34 is provided at the top of the inner side of the outer set 321, and is used for the outer set 321 to be rotatably connected with the first output shaft 33. The outer ring of the first bearing 34 is fixedly connected to the outer set 321, and the inner ring of the first bearing 34 is fixedly connected to the first output shaft 33. Further, a first bearing seat is provided in the outer set 321, and the first bearing 34 is provided in the first bearing seat.

[0056] like Figure 6As shown, the bottom shell 36 is disc-shaped, and the bottom shell 36 is threadedly connected to the outer sleeve 321. The bottom shell 36 and the outer sleeve 321 form a hollow chamber for the inner sleeve 322 and the first output shaft 33 to rotate in the hollow chamber; the bottom shell 36 is provided with an axial hole 361, and the first output shaft 33 passes through the axial hole 361 and is fixedly connected to the bottom shell 36;

[0057] A second bearing 35 is provided between the inner sleeve 322 and the bottom shell 36, and is used for the bottom shell 36 to be rotatably connected to the first output shaft 33. The outer ring of the second bearing 35 is fixedly connected to the bottom shell 36, and the inner ring of the second bearing 35 is fixedly connected to the first bearing 34. Furthermore, a second bearing seat is provided on the bottom shell 36, and the second bearing 35 is arranged in the second bearing seat.

[0058] like Figures 7 to 8 As shown, the rotating member 4 is provided with an opening at one end, and is in a hollow cylindrical structure. The rotating member 4 is fixedly connected to the first output shaft 33 and rotates synchronously with the first output shaft 33. The open end of the rotating member 4 is provided with a plurality of convex teeth around the peripheral wall for rotary cutting. Of course, the rotating member 4 can also be a rotating shaft, which meshes and rotates with the first output shaft 33. Further, a watering member 41 is provided at the top of the rotating member 4. The watering member 41 is cylindrical, and a hollow chamber is provided inside for storing water. The watering member 41 is provided with a plurality of rubber members 411 at intervals around the peripheral wall. The rubber member 411 is provided with a hollow structure with one end open. The end of the rubber member 411 away from the watering member 41 includes a sealable spike portion 412. The rotating force provided by the rotating member 4 causes the water in the rotating member 4 to be sprayed out from the spike portion 412 of the rubber member 411, which is used to cool and lubricate the convex teeth of the rotating member 4. Furthermore, a water supply portion is provided on a side of the watering member 41 away from the first output shaft 33 for injecting water into the watering member 41 .

[0059] The first driving mechanism 1 is a motor, but can also be a hydraulic drive or other driving mechanisms.

[0060] The first elastic component 3212 is a compression spring or a torsion spring.

[0061] The transmission device 3 further includes a control device, which includes a controller, a control switch and a sensor disposed at the second end 3225 of the limiting portion 3222. The first driving mechanism 1, the control switch and the sensor are all electrically connected to the controller.

[0062] The controller is a single chip microcomputer or a PLC in the prior art.

[0063] The sensor senses that the slider 3213 is detached from the second end 3225 of the limiting portion 3222, and the sensor sends a signal to the controller. The controller receives the signal and sends a control signal to the first driving mechanism 1, so that the first driving mechanism 1 stops running and the driving shaft 31 stops rotating, thereby avoiding wasting electric energy. In addition, the slider 3213 detached from the slide groove 3223 can be prevented from re-entering the slide groove 3223 of another limiting portion 3222 at too high a speed, thereby causing an impact on the limiting portion 3222.

[0064] Furthermore, the control device also includes an alarm device, which is electrically connected to the controller. The sensor senses that the slider 3213 is detached from the second end 3225 of the limit portion 3222. The sensor sends a signal to the controller, and the controller receives the signal and sends a control signal to the alarm device. The alarm device sends an alarm to enable the staff to be aware that the slider has detached from the limit portion 3222, so that the staff can more intuitively feel the impact of the construction on the transmission equipment, adjust the construction conditions in time, protect the transmission equipment, improve the safety of construction, and save construction costs.

[0065] In summary, the working principle of this embodiment is as follows:

[0066] The staff turns on the control switch, and the controller sends a control signal to the first driving mechanism 1. The first driving mechanism 1 rotates, and the active shaft 31 drives the slider 3213 to rotate. When the friction between the slider 3213 and the limiting portion 3222 is greater than the reaction force of the first output shaft 33, the active shaft 31 and the first output shaft 33 rotate synchronously; when the reaction force applied to the first output shaft 33 is greater than the friction between the slider 3213 and the limiting portion 3222, the slider 3213 slides toward the second end 3225 of the slide groove 3223, that is, the slider 3213 moves in a direction away from the axis of the inner kit 322, the first elastic component 3212 is compressed, and the friction between the slider 3213 and the slide groove 3223 increases until the friction is greater than the reaction force applied to the first output shaft 33 again, and the slider 3213 rotates synchronously with the first output shaft 33; repeat the above steps until the slider 3213 is disengaged from the second end 3225 of the slide groove 3223. The sensor senses that the slider 3213 is detached from the second end 3225 of the slide groove 3223, and sends a signal to the controller. The controller receives the signal and sends a control signal to the first drive mechanism 1 and the alarm device. The first drive mechanism 1 stops running and the alarm device sounds an alarm, so that the staff can adjust the construction work to ensure the safety of the construction.

[0067] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0068] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0069] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0070] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A transmission device, characterized in that: include, Active shaft (31); An outer sleeve (321) connected to the driving shaft (31), the outer sleeve (321) being provided with a sliding block (3213); an inner sleeve (322) rotatably connected to the outer sleeve (321), the inner sleeve (322) being provided with a limiting portion (3222); A first output shaft (33) connected to the inner sleeve (322) and rotating synchronously; The driving shaft (31) drives the outer sleeve (321) and the slider (3213) to rotate, the slider (3213) abuts against the limiting portion (3222), and the slider (3213) and the limiting portion (3222) switch between relative stillness and sliding, until the slider (3213) is separated from the limiting portion (3222); The outer sleeve (321) is a hollow structure with one end open, and is used for the inner sleeve (322) and the first output shaft (33) to be inserted into; the outer sleeve (321) is fixedly connected to the driving shaft (31); the outer sleeve (321) and the driving shaft (31) rotate synchronously; Two driving components (3211) are arranged opposite to each other in the outer kit (321), and the driving components (3211) include a slider (3213) and a first elastic component (3212). The first elastic component (3212) is arranged between the slider (3213) and the inner wall of the outer kit (321). The size of the slider (3213) matches the size of the slide groove (3223) of the inner kit (322). The slider (3213) is slidably matched with the inner kit (322) through the slide groove (3223); The inner sleeve (322) is a hollow cylindrical structure with openings at both ends, the first output shaft (33) passes through the inner sleeve (322) longitudinally, and the inner sleeve (322) is fixedly connected to the first output shaft (33), and the inner sleeve (322) and the first output shaft (33) rotate synchronously; The inner sleeve (322) comprises two limiting portions (3222) arranged opposite to each other on the peripheral wall, the limiting portions (3222) being arc-shaped, and the limiting portions (3222) being provided with an arc-shaped sliding groove (3223) penetrating along the circumference of the inner sleeve (322) for being slidably connected with the sliding block (3213); the sliding groove (3223) comprises a first end (3224) arranged close to the axis of the inner sleeve (322) and a second end (3225) arranged away from the axis of the inner sleeve (322), and the sliding groove (3223) extends from the first end (3224) in the direction of the second end (3225).

2. The transmission device according to claim 1, characterized in that: The driving assembly (3211) further comprises a driving block (3214), wherein the driving block (3214) is fixedly connected to the first elastic component (3212) and the first connecting rod (3215), and the surface where the driving block (3214) is connected to the first connecting rod (3215) is an arcuate surface, and the shape of the arcuate surface is matched with the inner wall of the outer sleeve (321).

3. The transmission device according to claim 2, characterized in that: The direction of the force applied by the first elastic component (3212) to the sliding block (3213) is perpendicular to the surface of the driving block (3214) facing the sliding block (3213) and the sliding groove (3223).

4. The transmission device according to claim 1, characterized in that: The driving assembly (3211) further comprises an adjusting member (3216), wherein the adjusting member (3216) is sleeved on the first connecting rod (3215) of the driving assembly (3211) and is used to adjust the distance between the sliding block (3213) and the axis of the inner sleeve (322).

5. The transmission device according to claim 4, characterized in that: The adjusting member (3216) comprises a first adjusting member (3217) and a second adjusting member (3218); the first adjusting member (3217) is located outside the outer sleeve (321); the driving assembly (3211) comprises a driving block (3214); and the second adjusting member (3218) is located between the driving block (3214) and the outer sleeve (321).

6. A transmission device, comprising the transmission device according to any one of claims 1 to 5, characterized in that: It also comprises a first driving mechanism (1), a gear mechanism (2) and a rotating member (4), wherein the output end of the first driving mechanism (1) is connected to the gear mechanism (2), and the transmission device is connected between the gear mechanism (2) and the rotating member (4).

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