Multi-stage speed regulation driving device

Abstract

The invention relates to the technical field of driving devices, in particular to a multistage speed regulation driving device which comprises a shell, a first motor and a second motor, an input gear set, a planetary gear set and an output gear set are arranged in the shell, and two first output shafts and two second output shafts are connected with the output gear set. The output shaft ends of the first motor and the second motor are both connected with the input gear set, a transmission gear is arranged between the two first output shafts and matched with the output gear set, a clutch is arranged at one end of the transmission gear, and a first transmission seat is installed in the output gear set. The compression spring has the beneficial effects that the effect of adjusting the pre-tightening force of the compression spring is achieved by adding the gaskets with different thicknesses between the fixed ring plate and the limiting ring plate, the mode of adjusting through bolts in the prior art is replaced, and when the pre-tightening force of the compression spring needs to be adjusted to be the same in a certain scene, the compression spring cannot be adjusted. And the gasket with the same thickness is replaced.

Description

Technical Field

[0001] The present invention relates to the technical field of drive devices, in particular to a multi-stage speed regulation drive device. Background Art

[0002] Mechanical transmission usually transfers the power of a motor, internal combustion engine or other moving parts through an input shaft of the transmission mechanism to one or more output shafts. If there are multiple output shafts and multiple speed requirements, it is necessary to configure different combinations of multiple motors and reducers to achieve this.

[0003] In a reducer, a clutch is usually provided for overload protection. When the load torque of the reducer exceeds the design value, the clutch cuts off the power transmission by slipping or disengaging to prevent irreversible damage such as gear chipping and shaft breakage. The preload force of the spring is adjusted for different usage scenarios to determine the slip threshold torque of the clutch. In the prior art, the preload force of the spring is usually adjusted by bolts, but the bolt adjustment method does not have a memory function. When the preload force of the spring needs to be adjusted to the same as in a previous scenario, the bolts need to be adjusted repeatedly. For usage scenarios with multi-speed requirements, different gears of the reduction mechanism are usually used to achieve this. The reduction mechanism is complex and has poor operation convenience. For redundant designs with high reliability requirements, it is necessary to add double the driving power sources to each driving position, and switch between the main power source and the backup power source through a switching mechanism. This will cause the number of power sources to double, the equipment cost is high, the layout space requirement is large, the product weight is heavy, and the economy is not good. Summary of the Invention

[0004] The object of the present invention is to provide a multi-stage speed regulation drive device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a multi-stage speed regulation drive device, comprising a housing, a motor 1 and a motor 2, an input gear set, a planetary gear set and an output gear set being arranged inside the housing, the input gear set and the planetary gear set cooperating with each other, the planetary gear set and the output gear set cooperating with each other, a rotatable output shaft 1 and an output shaft 2 being installed on both sides of the housing, the two output shafts being coaxially arranged, the two output shafts 2 being coaxially arranged, the two output shafts 1 and the two output shafts 2 being connected to the output gear set, the output shaft ends of the motor 1 and the motor 2 being connected to the input gear set, a transmission gear being arranged between the two output shafts 1, the transmission gear and the output gear set cooperating with each other, a clutch being arranged at one end of the transmission gear, an adjustment mechanism being arranged inside the clutch, and a transmission seat 1 being installed in the output gear set.

[0006] Preferably, the clutch includes a gear ring, a limiting ring plate, an adjustment mechanism and two gaskets, the two gaskets are arranged between the limiting ring plate and the fixed ring plate, the gear ring and the limiting ring plate are both sleeved on the outside of the transmission gear, the gear ring and the transmission gear are meshed with each other, a transmission seat 2 is fixedly installed on the side of the gear ring away from the limiting ring plate, the transmission seat 1 and the transmission seat 2 cooperate with each other, a fixed ring plate is arranged between the gear ring and the limiting ring plate, a compression spring is fixedly installed between the fixing ring plate and the transmission seat 2, and the compression spring is sleeved on the outside of the gear ring.

[0007] Preferably, an annular limiting groove is provided on one end of the outer portion of the transmission gear close to the fixed ring plate, and the fixed ring plate is rotatably mounted inside the annular limiting groove.

[0008] Preferably, the adjusting mechanism includes two guide rods 1 and two threaded rods, the two guide rods 1 and the two threaded rods are symmetrically arranged on one side of the limiting ring plate close to the fixed ring plate, the two guide rods 1 are fixedly connected to the limiting ring plate, the two threaded rods are rotatably connected to the limiting ring plate, the two ends of the fixed ring plate are respectively slidably sleeved on the outside of the two guide rods 1, the outsides of the two threaded rods are threadedly sleeved with connecting tubes, and the two connecting tubes are fixedly installed with push plates on the side close to the limiting ring plate, and the ends of the two push plates away from their respective corresponding threaded rods are respectively sleeved on the outside of the two guide rods 1, and the two push plates are located between the limiting ring plate and the fixed ring plate.

[0009] Preferably, magnet one is fixedly mounted on the top and bottom of the fixed ring plate close to the limiting ring plate, and magnet two is fixedly mounted on the side of the two gaskets close to the fixed ring plate, and the two magnets two cooperate with the two magnets one respectively.

[0010] Preferably, the two connecting tubes are fixedly installed with a clamping plate on one side away from their respective corresponding pushing plates, and the two clamping plates are provided with an arc groove on one end away from their respective corresponding connecting tubes, and the two arc grooves respectively cooperate with the two guide rods 1, and the two connecting tubes are fixedly installed with a guide rod 2 on the inside of one end away from their respective corresponding guide rod 1, and the two guide rods 2 are slidably installed on the outside of the two guide rods 2, and the two clamping plates are provided with a clamping groove on one end away from their respective corresponding guide rod 1, and the two clamping grooves respectively cooperate with the corresponding clamping blocks, and the outside of one end of the two guide rods 2 is sleeved with a reset spring 1.

[0011] Preferably, guide rods three are fixedly installed at both ends of the interior of the fixed ring plate, and a connecting ring plate is slidably installed on the outside of the two guide rods three, and a plurality of evenly distributed brackets one are rotatably installed on the top and bottom of the connecting ring plate, and a plurality of brackets one are rotatably installed on one end away from the connecting ring plate, and a plurality of push rods are slidably connected to the fixed ring plate at one end away from the connecting ring plate, and two brackets two are symmetrically rotatably installed on one side of the connecting ring plate away from the plurality of brackets one, and push rods are rotatably installed on the end of the two brackets two away from the connecting ring plate, and the two push rods are slidably connected to the fixed ring plate, and a reset spring two is fixedly installed between the side of the two push rods away from their respective corresponding brackets two and the inner wall of the connecting ring plate.

[0012] Preferably, the two guide rods are provided with sliding grooves inside, and the two sliding grooves respectively cooperate with the two push rods, and the two guide rods are slidably installed with a block at one end away from the limiting ring plate, and an L-shaped fixing rod is slidably installed inside the block, and the two guide rods are provided with a fixing groove at one end close to their respective corresponding blocks, and the two fixing grooves respectively cooperate with the two L-shaped fixing rods, and a return spring three is fixedly installed between one side of the two L-shaped fixing rods and the inner wall of their respective corresponding blocks, and a return spring four is fixedly installed between the bottom of the two blocks and the inner wall of the two guide rods one.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By adding gaskets of different thicknesses between the fixed ring plate and the limiting ring plate, the effect of adjusting the preload force of the compression spring is achieved, replacing the method of adjusting by bolts in the existing technology. When the preload force of the compression spring needs to be adjusted to the same as in a previous scenario, just replace the gasket of the same thickness.

[0015] 2. By setting the push rod, bracket 2, connecting ring plate, bracket 1 and push rod, the gasket can be extended out of the fixed ring plate during the disassembly of the gasket, which is convenient for the user to take out the two gaskets. In addition, the push rod will not affect the installation of the gasket during the reinstallation of the gasket.

[0016] 3. The present invention can realize the input of two motors, the two output shafts have the same speed, and the two output shafts have the same speed. Each speed is adjustable in multiple levels, realizing the function of continuously adjustable speed. At the same time, the two motors serve as backup for each other. If one motor fails, the other motor can still effectively complete the work drive. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2This is a schematic diagram of the overall structure of the other side of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of one side of the inner shell of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the other side of the interior of the housing of the present invention;

[0021] Figure 5 Schematic diagram of the bottom structure inside the housing of the present invention;

[0022] Figure 6 It is a schematic diagram of the transmission gear structure of the present invention;

[0023] Figure 7 It is a schematic diagram of the clutch structure of the present invention;

[0024] Figure 8 Schematic diagram of the gasket structure of the present invention;

[0025] Figure 9 It is a schematic diagram of the adjustment mechanism and the limiting rod structure of the present invention;

[0026] Figure 10 For the present invention Figure 9 A partial enlarged view in FIG;

[0027] Figure 11 It is a schematic structural diagram of the regulating mechanism of the present invention;

[0028] Figure 12 This is a structural diagram of one side of the fixed ring plate of the present invention;

[0029] Figure 13 This is a schematic structural diagram of the other side of the fixed ring plate of the present invention;

[0030] Figure 14 This is a schematic diagram of the internal structure of the fixed ring plate of the present invention;

[0031] Figure 15 For the present invention Figure 14 Partial enlarged view of B in FIG;

[0032] Figure 16 It is a partial cross-sectional view of the present invention;

[0033] Figure 17 For the present invention Figure 16 A partial enlarged view in FIG;

[0034] Figure 18 This is a schematic structural diagram of one side of the connecting ring plate of the present invention;

[0035] Figure 19 This is a schematic structural diagram of the input gear set of the present invention;

[0036] Figure 20 Schematic diagram of the structure of the planetary gear set of the present invention;

[0037] Figure 21 Schematic diagram of the output gear set structure of the present invention.

[0038] In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Housing; 2. Motor 1; 3. Motor 2; 4. Input gear set; 5. Planetary gear set; 6. Output gear set; 7. Return spring 4; 8. Output shaft 1; 9. Output shaft 2; 10. Transmission gear; 11. Transmission seat 1; 12. Gear ring; 13. Limiting ring plate; 14. Transmission seat 2; 15. Fixed ring plate; 16. Compression spring; 17. Annular limiting groove; 18. Guide rod 1; 19. Threaded rod; 20. , gasket; 21, push plate; 22, connecting tube; 23, clamping plate; 24, arc groove; 25, guide rod two; 26, clamping block; 27, clamping groove; 28, reset spring one; 29, magnet one; 30, magnet two; 31, guide rod three; 32, connecting ring plate; 33, bracket one; 34, push rod; 35, bracket two; 36, push rod; 37, reset spring two; 38, slide groove; 39, block; 40, L-shaped fixing rod; 41, fixing groove; 42, reset spring three. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 efforts are within the scope of protection of the present invention.

[0040] The present invention provides a technical solution: Figure 1 - Figure 21 A multi-stage speed regulation drive device shown includes a housing 1, a motor 2 and a motor 3. An input gear set 4, a planetary gear set 5 and an output gear set 6 are provided inside the housing 1. The input gear set 4 and the planetary gear set 5 cooperate with each other, and the planetary gear set 5 and the output gear set 6 cooperate with each other. Rotatable output shaft 1 8 and output shaft 2 9 are installed on both sides of the housing 1. The two output shafts 1 8 are coaxially arranged, and the two output shafts 2 9 are coaxially arranged. The two output shafts 1 8 and the two output shafts 2 9 are all connected to the output gear set 6. The output shaft ends of motor 1 2 and motor 2 3 are both connected to the input gear set 4. A transmission gear 10 is provided between the two output shafts 1 8. The transmission gear 10 cooperates with the output gear set 6. A clutch is provided at one end of the transmission gear 10, and an adjustment mechanism is provided inside the clutch. A transmission seat 11 is installed in the output gear set 6.

[0041] The clutch includes a gear ring 12, a limiting ring plate 13, an adjusting mechanism and two gaskets 20. The two gaskets 20 are arranged between the limiting ring plate 13 and the fixed ring plate 15. The gear ring 12 and the limiting ring plate 13 are both sleeved on the outside of the transmission gear 10. The gear ring 12 and the transmission gear 10 are engaged with each other. A transmission seat 2 14 is fixedly installed on the side of the gear ring 12 away from the limiting ring plate 13. The transmission seat 11 and the transmission seat 2 14 cooperate with each other. A fixed ring plate 15 is provided between the gear ring 12 and the limiting ring plate 13. A compression spring 16 is fixedly installed between the fixed ring plate 15 and the transmission seat 2 14, and the compression spring 16 is sleeved on the outside of the gear ring 12.

[0042] An annular limiting groove 17 is formed on one end of the outer portion of the transmission gear 10 close to the fixed ring plate 15 , and the fixed ring plate 15 is rotatably mounted inside the annular limiting groove 17 .

[0043] The adjusting mechanism includes two guide rods 18 and two threaded rods 19. The two guide rods 18 and the two threaded rods 19 are symmetrically arranged on the side of the limiting ring plate 13 close to the fixed ring plate 15. The two guide rods 18 are fixedly connected to the limiting ring plate 13. The two threaded rods 19 are rotatably connected to the limiting ring plate 13. The two ends of the fixed ring plate 15 are respectively slidably sleeved on the outside of the two guide rods 18. The outsides of the two threaded rods 19 are threadedly sleeved with connecting tubes 22. The two connecting tubes 22 are fixedly installed with push plates 21 on one side close to the limiting ring plate 13. The ends of the two push plates 21 away from their respective corresponding threaded rods 19 are respectively sleeved on the outside of the two guide rods 18. The two push plates 21 are located between the limiting ring plate 13 and the fixed ring plate 15.

[0044] Magnet 1 29 is fixedly mounted on the top and bottom of the fixed ring plate 15 close to the limiting ring plate 13 , and magnet 2 30 is fixedly mounted on the side of the two gaskets 20 close to the fixed ring plate 15 . The two magnets 2 30 cooperate with the two magnets 1 29 respectively.

[0045] A clamping plate 23 is fixedly installed on one side of the two connecting tubes 22 away from their corresponding pushing plates 21. An arc groove 24 is provided on one end of the two clamping plates 23 away from their corresponding connecting tubes 22. The two arc grooves 24 respectively cooperate with the two guide rods 18. A guide rod 25 is fixedly installed on the inside of the end of the two connecting tubes 22 away from their corresponding guide rod 18. A clamping block 26 is slidably installed on the outside of the two guide rods 25. A clamping groove 27 is provided on one end of the two clamping plates 23 away from their corresponding guide rod 18. The two clamping grooves 27 respectively cooperate with the corresponding clamping blocks 26. A return spring 28 is sleeved on the outside of one end of the two guide rods 25.

[0046] Guide rods 31 are fixedly installed at both ends of the interior of the fixed ring plate 15, and a connecting ring plate 32 is slidably installed on the outside of the two guide rods 31. A plurality of evenly distributed brackets 1 33 are rotatably installed on the top and bottom of the connecting ring plate 32. A plurality of brackets 1 33 are rotatably installed on one end away from the connecting ring plate 32. A plurality of push rods 34 are slidably connected to the fixed ring plate 15 at one end away from the connecting ring plate 32. Two brackets 2 35 are symmetrically rotatably installed on one side of the connecting ring plate 32 away from the plurality of brackets 1 33. Push rods 36 are rotatably installed on one end of the two brackets 2 35 away from the connecting ring plate 32. The two push rods 36 are slidably connected to the fixed ring plate 15, and a return spring 2 37 is fixedly installed between the side of the two push rods 36 away from their respective corresponding brackets 2 35 and the inner wall of the connecting ring plate 32.

[0047] The two guide rods 18 are each provided with a sliding groove 38 inside, and the two sliding grooves 38 respectively cooperate with the two push rods 36. The ends of the two guide rods 18 away from the limiting ring plate 13 are slidably installed with a stopper 39, and the inside of the stopper 39 is slidably installed with an L-shaped fixing rod 40. The ends of the two guide rods 18 close to their respective corresponding stops 39 are each provided with a fixing groove 41, and the two fixing grooves 41 respectively cooperate with the two L-shaped fixing rods 40. A return spring three 42 is fixedly installed between one side of the two L-shaped fixing rods 40 and the inner wall of their respective corresponding stops 39, and a return spring four 7 is fixedly installed between the bottom of the two stops 39 and the inner wall of the two guide rods 18.

[0048] Working principle: By setting the input gear set 4, planetary gear set 5 and output gear set 6, and configuring the different working conditions of operation and braking, forward rotation and reverse rotation of motor 1 2 and motor 2 3, multi-stage adjustment of the rotation speed of the two output shafts 1 8 and the two output shafts 2 9 can be achieved. The two output shafts 1 8 have the same speed, and the two output shafts 2 9 have the same speed. Among them, when motor 1 2 stops and motor 2 3 rotates forward, the two output shafts 1 8 and the two output shafts 2 9 rotate forward at low speed. When motor 1 2 rotates forward and motor 2 3 stops, the two output shafts 1 8 and the two output shafts 2 9 rotate forward at medium speed. When motor 1 2 rotates forward and motor 2 3 rotates forward, the two output shafts 1 8 and the two output shafts 2 9 rotate forward at high speed. In addition, motor 1 2 and motor 2 3 can backup each other, that is, when motor 1 2 fails, motor 2 3 can ensure the operation of the equipment. When motor 2 3 fails, motor 1 2 can ensure the operation of the equipment, thereby improving the reliability of the equipment. Among them, the clutch can realize the overload protection function of the equipment.

[0049] While adjusting the preload force of the compression spring 16 in the clutch, first push the two clamping blocks 26 respectively. The two clamping blocks 26 slide along their corresponding guide rods 25 and squeeze the corresponding return spring 1 28, so that the two clamping blocks 26 are respectively disengaged from the inside of their corresponding slots 27. Then, flip the two clamping plates 23 respectively. The two clamping plates 23 rotate along their corresponding connecting tubes 22, so that the two clamping plates 23 are away from the two guide rods 18. Subsequently, rotate the two threaded rods 19 respectively. The two threaded rods 19 drive the corresponding push plates 21 to slide along the corresponding guide rods 18. The two push plates 21 act on the two ends of the fixed ring plate 15 respectively. The fixed ring plate 15 moves and squeezes the compression spring 16.

[0050] As the fixed ring plate 15 moves, the two push rods 36 slide along the two slide grooves 38 respectively. When the two push rods 36 approach the inclined surfaces of the two stoppers 39 respectively, the two push rods 36 are forced to move closer to each other and act on the two return springs 2 37. The two brackets 2 35 are forced to push the connecting ring plate 32 to move along the two guide rods 31. At this time, multiple brackets 1 33 push their corresponding push rods 34 to move. Multiple push rods 34 act on the two gaskets 20 respectively. The two gaskets 20 are forced to move away from each other, thereby extending out of the fixed ring plate 15, making it convenient for the user to take out the two gaskets 20. As the fixed ring plate 15 continues to move, when the two push rods 36 move to the planes of the two stoppers 39 When the two push rods 36 push the two L-shaped fixing rods 40 to move, and squeeze the corresponding return springs 3 42, so that the two L-shaped fixing rods 40 disengage from the corresponding fixing grooves 41. Then, the two push rods 36 move away from each other to squeeze the two stoppers 39, and the connecting ring plate 32 drives the multiple ejector rods 34 to gradually return to their original position. When the fixing ring plate 15 moves to the maximum position, the two stoppers 39 are retracted into the interior of the corresponding guide rods 18, and the planes of the two stoppers 39 are parallel to the two slide grooves 38. With this arrangement, when the two push rods 36 are returning to their original position along with the fixing ring plate 15, they will not push the connecting ring plate 32 and the multiple ejector rods 34, so as to avoid affecting the installation of the two gaskets 20.

[0051] After two gaskets 20 are removed, select two gaskets 20 of appropriate thickness, fix two gaskets 20 with the fixed ring plate 15 by the two magnets two 30 on one side of the two gaskets 20 and the two magnets two 30 on one side of the fixed ring plate 15, then rotate the two threaded rods 19 in the opposite direction, the fixed ring plate 15 is close to the limiting ring plate 13 under the action of the compression spring 16, until the other side of the two gaskets 20 is attached to the limiting ring plate 13, stop rotating the two threaded rods 19, then rotate the two clamping plates 23, the arc-shaped grooves 24 in the two clamping plates 23 are respectively attached to the outside of the two guide rods one 18, and the two clamping blocks 26 are re-clamped into the two clamping grooves 27, the position of the two clamping plates 23 is fixed, and the position of the fixed ring plate 15 is fixed, the device adds gaskets 20 of different thicknesses between the fixed ring plate 15 and the limiting ring plate 13 to realize the effect of adjusting the pre-tightening force of the compression spring 16, instead of the adjusting method by bolts in the prior art, the pre-tightening force of the compression spring 16 needs to be adjusted to the same as in a previous scene, and the same thickness of gasket 20 can be replaced.

[0052] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0053] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous further modifications and changes can be obvious to one skilled in the art without departing from the scope and spirit of the application. The scope of the application is defined by the appended claims and their equivalents.

Claims

1. A multi-stage speed regulating drive device, comprising a housing (1), a first motor (2) and a second motor (3), characterized in that: An input gear set (4), a planetary gear set (5) and an output gear set (6) are provided inside the housing (1). The input gear set (4) and the planetary gear set (5) cooperate with each other, and the planetary gear set (5) and the output gear set (6) cooperate with each other. A rotatable output shaft 1 (8) and an output shaft 2 (9) are installed on both sides of the housing (1). The two output shafts 1 (8) are coaxially arranged, and the two output shafts 2 (9) are coaxially arranged. The two output shafts 1 (8) and the two output shafts 2 (9) are connected to the output gear set (6). The output shaft ends of the motor 1 (2) and the motor 2 (3) are connected to the input gear set (4). A transmission gear (10) is provided between the two output shafts 1 (8). The transmission gear (10) and the output gear set (6) cooperate with each other. A clutch is provided at one end of the transmission gear (10), and an adjustment mechanism is provided inside the clutch. A transmission seat 1 (11) is installed in the output gear set (6).

2. A multi-stage speed regulation drive device according to claim 1, characterized in that: The clutch comprises a gear ring (12), a limiting ring plate (13), an adjustment mechanism and two gaskets (20), wherein the two gaskets (20) are arranged between the limiting ring plate (13) and the fixed ring plate (15), the gear ring (12) and the limiting ring plate (13) are both sleeved on the outside of the transmission gear (10), the gear ring (12) and the transmission gear (10) are meshed with each other, a transmission seat 2 (14) is fixedly installed on the side of the gear ring (12) away from the limiting ring plate (13), the transmission seat 1 (11) and the transmission seat 2 (14) cooperate with each other, a fixed ring plate (15) is arranged between the gear ring (12) and the limiting ring plate (13), a compression spring (16) is fixedly installed between the fixing ring plate (15) and the transmission seat 2 (14), and the compression spring (16) is sleeved on the outside of the gear ring (12).

3. A multi-stage speed regulation drive device according to claim 2, characterized in that: An annular limiting groove (17) is provided on one end of the outside of the transmission gear (10) close to the fixed ring plate (15), and the fixed ring plate (15) is rotatably mounted inside the annular limiting groove (17).

4. The multi-stage speed regulation drive device according to claim 2, characterized in that: The adjustment mechanism includes two guide rods (18) and two threaded rods (19). The two guide rods (18) and the two threaded rods (19) are symmetrically arranged on one side of the limiting ring plate (13) close to the fixed ring plate (15). The two guide rods (18) are fixedly connected to the limiting ring plate (13). The two threaded rods (19) are rotatably connected to the limiting ring plate (13). The two ends of the fixed ring plate (15) are respectively slidably sleeved on the two guide rods. The outside of the guide rod (18) and the outside of the two threaded rods (19) are both threadedly sleeved with a connecting tube (22), and the two connecting tubes (22) are fixedly installed with a push plate (21) on one side close to the limiting ring plate (13). The ends of the two push plates (21) away from their respective corresponding threaded rods (19) are respectively sleeved on the outside of the two guide rods (18), and the two push plates (21) are located between the limiting ring plate (13) and the fixed ring plate (15).

5. The multi-stage speed regulation drive device according to claim 2, characterized in that: The top and bottom of the fixed ring plate (15) close to the limiting ring plate (13) are fixedly mounted with magnet one (29), and the two gaskets (20) are fixedly mounted with magnet two (30) on one side close to the fixed ring plate (15), and the two magnet twos (30) respectively cooperate with the two magnet ones (29).

6. The multi-stage speed regulation drive device according to claim 4, characterized in that: A clamping plate (23) is fixedly installed on one side of the two connecting cylinders (22) away from the corresponding pushing plate (21), and an arc groove (24) is provided on one end of the two clamping plates (23) away from the corresponding connecting cylinder (22). The two arc grooves (24) respectively cooperate with the two guide rods (18). A guide rod (25) is fixedly installed inside the one end of the two connecting cylinders (22) away from the corresponding guide rod (18). A clamping block (26) is slidably installed on the outside of the two guide rods (25). A clamping groove (27) is provided on one end of the two clamping plates (23) away from the corresponding guide rod (18). The two clamping grooves (27) respectively cooperate with the corresponding clamping block (26). A return spring (28) is sleeved on the outside of one end of the two guide rods (25).

7. The multi-stage speed regulation drive device according to claim 4, characterized in that: The two ends of the interior of the fixed ring plate (15) are fixedly mounted with guide rods three (31), and the exteriors of the two guide rods three (31) are slidably mounted with a connecting ring plate (32). The top and bottom of the connecting ring plate (32) are rotatably mounted with a plurality of evenly distributed brackets one (33), and the ends of the plurality of brackets one (33) away from the connecting ring plate (32) are rotatably mounted with a push rod (34), and the ends of the plurality of push rods (34) away from the connecting ring plate (32) are all connected to the fixed ring plate (15). ) is slidably connected, and two brackets (35) are symmetrically rotatably installed on one side of the connecting ring plate (32) away from the multiple brackets (33), and push rods (36) are rotatably installed on one end of the two brackets (35) away from the connecting ring plate (32). The two push rods (36) are slidably connected to the fixed ring plate (15), and a return spring (37) is fixedly installed between the side of the two push rods (36) away from the corresponding bracket (35) and the inner wall of the connecting ring plate (32).

8. The multi-stage speed regulation drive device according to claim 7, characterized in that: The two guide rods (18) are provided with a sliding groove (38) inside, and the two sliding grooves (38) respectively cooperate with the two push rods (36). The ends of the two guide rods (18) away from the limiting ring plate (13) are slidably installed with a stopper (39), and the inside of the stopper (39) is slidably installed with an L-shaped fixing rod (40). The ends of the two guide rods (18) close to their respective corresponding stoppers (39) are provided with a fixing groove (41), and the two fixing grooves (41) respectively cooperate with the two L-shaped fixing rods (40). A return spring three (42) is fixedly installed between one side of the two L-shaped fixing rods (40) and the inner wall of the respective corresponding stopper (39), and a return spring four (7) is fixedly installed between the bottom of the two stoppers (39) and the inner wall of the two guide rods (18).

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