Multi-belt type stepless speed change device and regulation and control method

Abstract

The invention provides a multi-belt type stepless speed change device and a regulation and control method, and belongs to the technical field of transmission machinery. The multi-belt stepless speed change device comprises a driving wheel structure, a driven wheel structure, a speed regulation structure and a triangular belt transmission structure, wherein the driving wheel structure is used for providing input power; the driven wheel structure is used for outputting power; the speed regulating structure is used for regulating the variable speed; and the triangular belt transmission structure is used for connecting the driving wheel structure and the driven wheel structure for power transmission. The transmission device is simple in structure and large in transmission torque, and the transmission structure can be reinforced according to actual requirements. The application range is wide. The control device is simple in structure, and the whole set of speed control system can be adjusted and controlled only through one driving motor. Control response is fast, logic is smooth, and the failure rate is low.

Description

Technical Field

[0001] This belongs to the technical field of transmission machinery, and specifically discloses a multi-belt continuously variable transmission device and a control method thereof. Background Art

[0002] In the friction continuously variable transmission in the prior art, like other transmissions or reducers, when the input power is constant, after starting, at any moment during the accelerating operation, uniform motion can be achieved. Since there is a pair of internal torques with equal magnitudes and opposite directions between the input wheel and the driven wheel of the friction continuously variable transmission, the angular momentum between the input wheel and the driven wheel is transferred equally. The internal torque corresponds to the output torque, which constitutes the transmission condition of the friction continuously variable transmission. The motion of the input wheel and the output wheel is under the interaction of the internal torque and the reaction torque of the output torque. Since the resultant of the reaction torque of the output torque and the angular impulse of the relative internal torque is zero, the resultant external force is zero, and uniform motion can be achieved; the friction continuously variable transmission is a friction drive with low transmission efficiency.

[0003] Through the above analysis, the problems and defects existing in the prior art are as follows: the structure of the transmission device in the prior art is complex, the transmitted torque is small, and the applicable range is limited. The control device in the prior art has slow control response, cumbersome logic, and a high failure rate. Summary of the Invention

[0004] In view of the above defects or deficiencies in the prior art, the present application aims to provide a multi-belt continuously variable transmission device and a control method thereof.

[0005] The present invention provides a multi-belt continuously variable control method, including: the driving I-shaped wheel transmits kinetic energy to the driven I-shaped wheel through the belt of the triangular belt transmission structure; the sliding block of the driving belt groove for transmitting kinetic energy is embedded in the middle of the chute track, and the reciprocating rotation of the left driving chute flange and the right driving chute flange is used to drive the up and down movement of the sliding block of the driving belt groove in the chute track, generating an increase and decrease in the outer diameter of the sliding block of the driving belt groove; forming a size switching function corresponding to the sliding module of the driven wheel.

[0006] When the driven I-shaped wheel rotates, it drives the first central wheel and the second central wheel to rotate synchronously. The first central wheel and the second central wheel respectively drive the first planetary wheel and the second planetary wheel to rotate, and then the first planetary wheel and the second planetary wheel jointly drive the internal gear ring to rotate;

[0007] The driving motor drives the worm to rotate, and the worm then drives the worm wheel to rotate; the worm wheel drives the planet carrier connecting shaft to rotate and then drives the planetary gear speed regulating frame to rotate; the first central gear in the planetary gear speed regulating frame drives the flange shaft to rotate, and the flange shaft then drives the right driven chute flange and the left driven chute flange to rotate synchronously. The right driven chute flange and the left driven chute flange then drive the driven wheel sliding module to move up and down synchronously in the chute track of the driven I-shaped wheel. By controlling the change of the outer diameter of the driven wheel sliding module, the kinetic energy is transmitted back to the active belt groove slider of the active wheel structure through the V-belt, generating a reduction and expansion function corresponding to the outer diameter of the driven wheel sliding module.

[0008] Furthermore, the internal gear ring is used for the kinetic energy conversion and connection between the planetary gear speed regulating frame and the fixed frame.

[0009] Another object of the present invention is to provide a multi-belt stepless speed change device, comprising: an active wheel structure, a driven wheel structure, a speed regulating structure and a V-belt transmission structure. The active wheel structure is used to provide the input power;

[0010] The driven wheel structure is used to output power;

[0011] The speed regulating structure is used to adjust the speed change;

[0012] The V-belt transmission structure is used to connect the active wheel structure and the driven wheel structure for power transmission.

[0013] Furthermore, the active wheel structure is provided with a left active wheel cover, a right active wheel cover, a left tension spring, a right tension spring, a left active chute flange, a right active chute flange, an active I-shaped wheel, an active chute flange shaft, and an active belt groove slider;

[0014] The driven wheel structure is provided with a driven I-shaped wheel, a right driven chute flange, a left driven chute flange, a driven wheel flange shaft, a right driven wheel cover, a left driven wheel cover, and a driven belt groove slider;

[0015] The speed regulating control device is provided with a planet carrier connecting shaft, a driving motor, a worm, a worm wheel, a planetary gear speed regulating frame, a planetary gear fixed frame, an internal gear ring, a driven wheel flange shaft, and a right driven wheel cover.

[0016] Furthermore, the outer shapes of the active I-shaped wheel and the driven I-shaped wheel are both in an I-shaped structure, with left and right two structural surfaces, and the two structural surfaces are in a mirror-symmetrical integral uniform structure.

[0017] Furthermore, both the active I-shaped wheel and the driven I-shaped wheel are provided with a central through hole, a chute track, a threaded hole, a fan blade module, a V-shaped notch, a blade process hole, and a chute track process hole in the middle;

[0018] The blade process hole is also provided with a right tension spring pin and a left tension spring pin for positioning; the central through hole is a circular through hole; the fan blade module is an L-shaped structure, and the fan blade module is provided with blade process holes, threads, and V-shaped cuts; the slide groove process openings are symmetrically connected with the slide track holes; the slide groove track is set to an open T-shaped through structure; the number is N.

[0019] Furthermore, the active belt groove sliding block or the driven belt groove sliding block has a belt groove, a cylindrical flange pin, a slide groove positioning block, and a positioning block groove; the number of belt grooves is set to N, and the number of active belt groove sliding blocks or driven belt groove sliding blocks corresponds to the number of slide groove tracks.

[0020] Further, the left chute flange structure is a left active chute flange or a left driven chute flange; the right chute flange structure is a right active chute flange or a right driven chute flange;

[0021] The left slide flange structure and the right slide flange structure are respectively provided with a tension spring latch and a tension spring retaining ring;

[0022] The left slide flange structure and the right slide flange structure are both provided with flange slide grooves, flange through holes and flange V-shaped grooves; the flange slide grooves are semi-arc-shaped, through-shaped closed structures, and the number of the flange slide grooves corresponds to the number of the slide rails;

[0023] The active working wheel is assembled with the left active slide groove flange, the right active slide groove flange, the active slide groove flange shaft, the active belt groove sliding block, the left tension spring and the right tension spring to form an integrated structure;

[0024] The active slide groove flange shaft is inserted through the central through hole of the assembly type wheel and is hingedly combined with the left active slide groove flange and the right active slide groove flange to form an integrated rotatable structure;

[0025] The active belt groove sliding block is arranged in a ring in the slide groove track between the left and right structural surfaces of the active working wheel; the flange pin in the active belt groove sliding block is correspondingly connected with the flange slide groove, and the slide groove positioning block is correspondingly connected with the slide groove track;

[0026] The left tension spring or the right tension spring is ring-mounted on the outer end of the tension spring retaining ring, and the two ends of the left tension spring are respectively assembled and hinged with the tension spring clamping pin and the left tension spring pin; the two ends of the right tension spring are respectively assembled and hinged with the tension spring clamping pin and the right tension spring pin;

[0027] The left tension spring or the right tension spring applies a traction force to the left active slide groove flange and the right active slide groove flange structure to act on the active belt groove sliding block to generate an outward expansion force.

[0028] Furthermore, the planetary gear speed regulating frame is provided with a rotating regulating frame, a first planetary gear, and a first central gear; the rotating speed regulating frame is provided as a rotatable regulating device.

[0029] Furthermore, the planet gear carrier is assembled and matched with the right driven wheel cover and the flange shaft to form a fixed planet carrier combined structure;

[0030] The second central gear is assembled and fitted with the end of the right driven wheel cover to form an integral whole.

[0031] Furthermore, the planet carrier connecting shaft, the drive motor, the worm, the worm gear, and the planet gear speed regulation frame are combined to form a motor drive module;

[0032] The drive motor is assembled and fitted with the worm; both ends of the planet carrier connecting shaft are respectively assembled and fitted with the planet gear speed regulation frame and the worm gear;

[0033] The fixed planet carrier combined structure, the motor drive module, and the internal gear ring are assembled into a speed change and regulation combined structure.

[0034] Combining all the above technical solutions, the advantages and positive effects of the present invention are as follows: The transmission device provided by this application has a simple structure, can transmit a large torque, and the transmission structure can be strengthened according to actual needs. It has a wide range of applications. The control device has a simple structure, and only one drive motor is required to adjust and control the entire speed change system. The control response is fast, the logic is smooth, and the failure rate is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objectives, and advantages of this application will become more obvious:

[0036] Figure 1 is the overall schematic diagram of the multi-belt continuously variable transmission device provided by the embodiment of the present invention;

[0037] Figure 2 is the connection schematic diagram of each component of the multi-belt continuously variable transmission device provided by the embodiment of the present invention;

[0038] Figure 3 is the schematic diagram of the structure of the driving wheel provided by the embodiment of the present invention;

[0039] Figure 4 is the schematic diagram of the structure of the driven wheel provided by the embodiment of the present invention;

[0040] Figure 5 is the schematic diagram of the speed regulation structure provided by the embodiment of the present invention;

[0041] Figure 6 is the schematic diagram of the structural surface of the driving or driven I-shaped wheel provided by the embodiment of the present invention;

[0042] Figure 7 is the schematic diagram of the driving or driven I-shaped wheel provided by the embodiment of the present invention;

[0043] Figure 8Schematic diagram of the active belt groove slider or the driven belt groove slider provided by the embodiment of the present invention;

[0044] Figure 9 Schematic diagram of the components included in the left chute flange structure or the right chute flange structure provided by the embodiment of the present invention;

[0045] Figure 10 Schematic diagram of the integrated structure formed by the active I-shaped wheel and other structures to form an active wheel structure provided by the embodiment of the present invention;

[0046] Figure 11 Schematic diagram of the integrated structure formed by the assembly of the driven belt groove slider and other components to form a driven wheel structure provided by the embodiment of the present invention;

[0047] Figure 12 Schematic diagram of the left active wheel cover, the right active wheel cover, the right driven wheel cover or the left driven wheel cover provided by the embodiment of the present invention;

[0048] Figure 13 Schematic diagram of the planetary gear speed regulating frame provided by the example of the present invention;

[0049] Figure 14 Schematic diagram of the planetary gear fixing frame provided by the embodiment of the present invention;

[0050] Figure 15 Schematic diagram of the fixed planetary gear frame combined structure provided by the embodiment of the present invention;

[0051] Figure 16 Schematic diagram of the motor drive module provided by the embodiment of the present invention;

[0052] Figure 17 Schematic diagram of the speed change adjustment combined structure provided by the embodiment of the present invention;

[0053] In the figure: 1. Left driving wheel cover; 2. Right driving wheel cover; 3. Left tension spring; 4. Right tension spring; 5. Left driving chute flange; 6. Right driving chute flange; 7. Left chute flange structure; 8. Right chute flange structure; 9. Driving I-shaped wheel; 10. Driving chute flange shaft; 11. Driving belt groove sliding block; 12. Central through hole of I-shaped wheel; 13. Slideway track; 14. Threaded hole; 15. Fan blade module; 16. V-shaped notch; 17. Right tension spring pin; 18. Left tension spring pin; 19. Blade process hole; 20. Process opening of slideway groove; 21. Tension spring retaining pin; 22. Tension spring retaining ring; 23. Flange slideway groove; 24. Flange through hole; 25. Flange V-shaped groove; 26. Belt groove; 27. Cylindrical flange pin; 28. Chute positioning block; 29. Positioning block groove; 30. V-belt; 31. Driven I-shaped wheel; 32. Right driven chute flange; 33. Left driven chute flange; 34. Driven wheel flange shaft; 35. Right driven wheel cover; 36. Left driven wheel cover; 37. Driven belt groove slider; 38. Planet carrier connecting shaft; 39. Driving motor; 40. Worm; 41. Worm gear; 42. Planet gear speed regulation frame; 43. Planet gear fixing frame; 44. Internal gear ring; 45. Driving wheel structure; 46. Driven wheel structure; 47. Rotation adjustment frame; 48. First planet gear; 49. First central gear; 52. Side cover; 53. Process round hole; 54. Outer platform of bearing; 55. Fixing frame; 56. Second planet gear; 57. Second central gear; 58. Speed regulation structure; 59. V-belt drive structure; 60. Outer platform of central through hole. Detailed implementation manners

[0054] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention, rather than limiting the invention. In addition, it should be noted that for the convenience of description, only the parts related to the invention are shown in the drawings.

[0055] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0056] Embodiment 1, as Figure 1 shown, the multi-belt continuously variable transmission device provided by the embodiment of the present invention includes: a driving wheel structure 45, a driven wheel structure 46, a speed regulation structure 58 and a V-belt drive structure 59. The driving wheel structure 45 is a power input device for providing input power;

[0057] The driven wheel structure 46 is a power output device for outputting power;

[0058] The speed regulation structure 58 is a speed change control device for adjusting the speed change;

[0059] The V-belt drive structure 59 is a power transmission device for connecting the driving wheel structure 45 and the driven wheel structure 46 to transmit power.

[0060] Specifically, as Figure 2 shown, the multi-belt continuously variable transmission device provided by the embodiment of the present invention specifically includes:

[0061] Left driving wheel cover 1; right driving wheel cover 2; left tension spring 3; right tension spring 4; left driving sliding groove flange 5; right driving sliding groove flange 6; driving I-shaped wheel 9; driving belt groove sliding block 11; left tension spring pin 18; tension spring retaining ring 22; belt 30; driven I-shaped wheel 31; left driven sliding groove flange 33; right driven wheel cover 35; left driven wheel cover 36; driven belt groove slider 37; planet carrier connecting shaft 38; drive motor 39; worm 40; worm gear 41; planetary gear speed regulation frame 42; planetary gear fixing frame 43; internal gear ring 44; first planetary gear 48; first central gear 49.

[0062] As Figure 3 shown, the driving wheel structure 45 is provided with a left driving wheel cover 1, a right driving wheel cover 2, a left tension spring 3, a right tension spring 4, a left driving sliding groove flange 5, a right driving sliding groove flange 6, a driving I-shaped wheel 9, a driving sliding groove flange shaft 10, and a driving belt groove sliding block 11;

[0063] As Figure 4 shown, the driven wheel structure 46 is provided with a driven I-shaped wheel 31, a right driven sliding groove flange 32, a left driven sliding groove flange 33, a driven wheel flange shaft 34, a right driven wheel cover 35, a left driven wheel cover 36, and a driven belt groove slider 37;

[0064] As Figure 5 shown, the speed regulation control device is provided with: a planet carrier connecting shaft 38, a drive motor 39, a worm 40, a worm gear 41, a planetary gear speed regulation frame 42, a planetary gear fixing frame 43, an internal gear ring 44, a driven wheel flange shaft 34, and a right driven wheel cover 35.

[0065] In Figures 3 - 5 , the structures and functions of the driving wheel structure 45 and the driven wheel include:

[0066] The outer shapes of the driving I-shaped wheel 9 and the driven I-shaped wheel 31 are both in the shape of an 'I' structure, and are provided with two structural surfaces on the left (A end face) and the right (B end face) (as Figure 6 ), and the two structural surfaces are mirror-symmetric and integrally evenly distributed structures.

[0067] As Figure 7 shown, both the driving I-shaped wheel 9 and the driven I-shaped wheel 31 are provided with a central through hole 12, a chute track 13, a threaded hole 14, a fan blade module 15, a V-shaped notch 16, a blade process hole 19, and a chute groove process hole 20 in the middle.

[0068] In the blade process hole 19, there are also provided a right tension spring pin 17 and a left tension spring pin 18 for positioning. The central through hole 12 is a circular through hole. The threaded hole 14 is a fixing hole for the side cover 52. The fan blade module 15 has an 'L'-shaped structure, and the fan blade module 15 is provided with a blade process hole 19, a thread 14, and a V-shaped notch 16. The right tension spring pin 17 and the left tension spring pin 18 are respectively fixing pins for the right tension spring 4 and the left tension spring 3. The slideway groove process opening 20 is symmetrically connected to the hole position of the slideway track 13. The slideway track 13 is provided as an open 'T'-shaped through structure. The number is set to 'N' and can be increased or decreased according to requirements.

[0069] As Figure 8 shown, both the driving belt groove slider 11 and the driven belt groove slider 37 have a belt groove 26, a cylindrical flange pin 27, a slideway positioning block 28, and a positioning block groove 29. The number of the belt grooves 26 is set to 'N' and can be increased or decreased according to requirements. The number of the driving belt groove slider 11 or the driven belt groove slider 37 corresponds to the number of the slideway tracks 13.

[0070] As Figure 9 shown, the left slideway flange structure 7 is the left driving slideway flange 5 or the left driven slideway flange 33; the right slideway flange structure 8 is the right driving slideway flange 6 or the right driven slideway flange 32;

[0071] The left slideway flange structure 7 and the right slideway flange structure 8 are respectively provided with a tension spring retaining pin 21 and a tension spring retaining ring 22; both the left slideway flange structure 7 and the right slideway flange structure 8 are provided with a flange slideway groove 23, a flange through hole 24, and a flange V-shaped groove 25. Among them, the flange slideway groove 23 is a semi-circular, through and closed structure, and the number of the flange slideway grooves 23 corresponds to the number of the slideway tracks 13. The flange through hole 24 is a through circular through hole, and the flange V-shaped groove 25 is a process opening. The structure of the flange V-shaped groove 25 is symmetrically matched with the V-shaped notch 16, and the outer shape of the flange V-shaped groove 25 can be set to a V shape or an arc shape.

[0072] As Figure 3 、 Figure 10 shown, the driving I-shaped wheel 9 is assembled with the left driving slideway flange 5, the right driving slideway flange 6, the driving slideway flange shaft 10, the driving belt groove slider 11, the left tension spring 3, and the right tension spring 4 to form an integral structure.

[0073] The central through hole 12 of the I-shaped wheel is an insertion and assembly hole for the driving slideway flange shaft 10. The driving slideway flange shaft 10 is inserted and assembled through the central through hole 12 of the I-shaped wheel and is hinged and combined with the left driving slideway flange 5 and the right driving slideway flange 6 to form a rotatable structure integrated as a whole.

[0074] The driving belt groove sliding blocks 11 are distributed in the chute tracks 13 between the left and right structural surfaces of the driving I-shaped wheel 9. The flange pins 27 in the driving belt groove sliding blocks 11 are correspondingly connected with the flange slideway grooves 23, and the chute positioning blocks 28 are correspondingly connected with the chute tracks 13.

[0075] As Figure 3 , Figure 9 shown, the left tension spring 3 or the right tension spring 4 is sleeved on the outer end of the tension spring retaining ring 22. The two ends of the left tension spring 3 are respectively assembled and hinged with the tension spring pin 21 and the left tension spring pin 18. The two ends of the right tension spring 4 are respectively assembled and hinged with the tension spring pin 21 and the right tension spring pin 17;

[0076] The left tension spring 3 or the right tension spring 4 exerts a traction force on the structures of the left driving chute flange 5 and the right driving chute flange 6 to act on the driving belt groove sliding block 11 to generate an outward expansion force.

[0077] As Figure 4 , Figure 11 shown, the right driven chute flange 32, the left driven chute flange 33, the flange shaft 34 and the driven belt groove slider 37 are assembled to form an integral structure. The structural characteristics of this device are the same as those of the driving wheel structure 45 ( Figure 10 ).

[0078] As Figure 12 shown, the left driving wheel cover 1, the right driving wheel cover 2, the right driven wheel cover 35 and the left driven wheel cover 36 are all circular 'T'-shaped structures, and are all provided with a circular through hole 52, a process round hole 53, a bearing outer platform 54 and a central through hole outer platform 60. The circular through hole 52 is correspondingly connected with the threaded hole 14 of the I-shaped wheel. The bearing outer platform 54 is used for bearing installation.

[0079] As Figure 13 shown, the planetary gear speed regulating frame 42 is provided with a rotating regulating frame 47, a first planetary gear 48 and a first central gear 49. The rotating speed regulating frame 47 is set as a rotatable regulating device.

[0080] As Figure 14 shown, the planetary gear fixing frame 43 is provided with a fixing frame 55, a second planetary gear 56 and a second central gear 57. The number of teeth and the module of the gears of the two structures of the rotating speed regulating frame 47 and the fixing frame 55 are the same and consistent.

[0081] As Figure 15 shown, the planetary gear fixing frame 43 ( Figure 14 ) and the right driven wheel cover 35, the flange shaft 34 (as Figure 5 ) are assembled and matched to form a fixed planetary frame combined structure.

[0082] The second central gear 57 is assembled and fitted with the end of the right driven wheel cover 35 to form a whole. The fixing frame 55 of the device here is set as a fixed and immovable device.

[0083] As Figure 16 shown, the planet carrier connecting shaft 38, drive motor 39, worm 40, worm gear 41, and planetary gear speed regulation frame 42 are combined to form a motor drive module.

[0084] The drive motor 39 is assembled and fitted with the worm 40. The two ends of the planet carrier connecting shaft 38 are respectively assembled and fitted with the planetary gear speed regulation frame 42 and the worm gear 41.

[0085] As Figure 17 shown, the fixed planet carrier combined structure ( Figure 15 ) and the motor drive module ( Figure 16 ) and the internal gear ring 44 ( Figure 5 shown) are assembled into a speed change and regulation combined structure.

[0086] Embodiment 2. The multi-belt continuously variable speed control method provided by the embodiment of the present invention includes:

[0087] The driving wheel structure 45 drives the driven wheel structure 46 to rotate through the belt 30 ( Figure 2 ). The driving wheel structure 45 and the driven wheel structure 46 are respectively provided with a driving belt groove sliding block 11 and a driven wheel sliding module 37 device that can change the outer diameter size. By controlling the outer diameter size of the driven wheel sliding block 37, the kinetic energy is transmitted back to the driving wheel structure 45 through the V-belt 30, and the outer diameter size of the driving belt groove sliding block 11 is changed passively. Thus, the switching of the outer diameter sizes of the driving wheel structure 45 and the driven wheel structure 46 is generated to achieve the functions of power transmission and speed change and regulation.

[0088] It can be understood that when the outer diameter of the driving wheel sliding block is the smallest, the outer diameter of the driven wheel sliding block is the largest. When the driving wheel drives the driven wheel to rotate through the belt, the power torque transmission is the largest at this time. Assuming that the minimum outer diameter of the driving wheel sliding block is 1 and the maximum outer diameter of the driven wheel sliding block is 2.5, when the driving wheel rotates 1 circle, the driven wheel rotates 1 / 2.5 = 0.4 circles. When the driven wheel changes the outer diameter of the sliding block from large to small through the control module, the driving wheel sliding block is passively changed from small to large in outer diameter by the pulling force of the tension spring and the huge centrifugal force generated under its own high-speed working conditions. When the outer diameter of the driven wheel sliding block is changed from 2.5 to 1 (from large to small) through the control module, the outer diameter of the driving wheel sliding block is passively changed from 1 to 2.5 (from small to large). At this time, when the driving wheel rotates 1 circle, the driven wheel rotates 2.5 circles, and the rotational speed of the driven wheel reaches the highest rotational speed. The theoretical output rotation ratio of the driving wheel to the driven wheel is 2.5 * 2.5 = 6.25 times. This multiple relationship can be changed accordingly according to the increase or decrease of the outer diameters of the driving wheel and the driven wheel.

[0089] On the contrary, when the outer diameter of the driven wheel slider increases from small to large again (from 1 to 2.5), the outer diameter of the driving wheel slider decreases from large to small (from 2.5 to 1) under the pulling force of the V-belt 30, so that only by controlling the outer diameter of the driven wheel slider can any variable speed adjustment control between the two be achieved, and the maximum torque transmission between the two is always maintained.

[0090] The advantage of the present invention is that any variable speed adjustment between the driving wheel and the driven wheel can be achieved only by controlling the driven wheel device, and the maximum pulling force torque transmission between the two is always maintained through the V-belt 30. It can very effectively solve the problems of traditional steel belt type CVT transmissions such as steel belt slipping and breaking caused by cylinder pressure loss and excessive torque during starting in the field of automotive transmissions. The number of transmission belts can also be set according to actual power requirements, with 3 as the benchmark. Increasing the number of belts can improve the transmission of pulling force and torque. The advantage of the multi-belt transmission is that the power transmission is stable, the transmitted torque is large, and the error tolerance rate is high. Even if a certain belt breaks or slips during long-term use, other belts can still transmit power normally, greatly reducing the failure rate of mechanical devices.

[0091] Exemplarily, the multi-belt continuously variable transmission control method provided by the embodiment of the present invention specifically includes:

[0092] Both sets of I-shaped wheels are of integral rotation structure. The driving I-shaped wheel 9 transmits kinetic energy to the driven I-shaped wheel 31 through the belt of the V-belt transmission structure 59. The driving belt groove slider 11 ([ Figure 8 ) is embedded in the middle of the chute track 13 and is driven to move up and down in the chute track 13 by the reciprocating rotation of the left driving chute flange 5 and the right driving chute flange 6 ([ Figure 9 ), so as to cause the outer diameter of the driving belt groove slider 11 to expand and contract. A corresponding size switching function with the driven wheel sliding module 37 is formed.

[0093] When the driven I-shaped wheel 31 rotates, it will drive the first central wheel 49 and the second central wheel 57 to rotate synchronously. The first central wheel 49 and the second central wheel 57 respectively drive the first planetary wheel 48 and the second planetary wheel 56 to rotate, and then the first planetary wheel 48 and the second planetary wheel 56 jointly drive the internal gear ring 44 to rotate. The internal gear ring 44 plays a role in kinetic energy conversion and connection for the planetary gear speed regulating frame 42 and the fixed frame 43.

[0094] The drive motor 39 drives the worm 40 to rotate, and the worm 40 then drives the worm gear 41 to rotate. The worm gear 41 drives the planet carrier connecting shaft 38 to rotate, which in turn drives the planetary gear speed regulation frame 42 to rotate. The first central gear 49 in the planetary gear speed regulation frame 42 drives the flange shaft 34 to rotate, and the flange shaft 34 then drives the right driven chute flange 32 and the left driven chute flange 33 to rotate synchronously. The right driven chute flange 32 and the left driven chute flange 33 then drive the driven wheel sliding module 37 to move up and down synchronously in the chute track 13 of the driven I-shaped wheel 31 through the flange chute groove 23( Figure 9 ). (The operating function of this structure is the same as that of the driving wheel structure 45.) By controlling and changing the outer diameter of the driven wheel sliding module 37, the kinetic energy is transmitted back to the driving belt groove slider 11 of the driving wheel structure 45 through the V-belt 30, so that it generates functions of shrinking and expanding corresponding to the outer diameter of the driven wheel sliding module 37. Finally, the speed regulation function between the two devices of the driving wheel structure 45 and the driven wheel structure 46 is achieved.

[0095] In the above embodiments, the descriptions of the respective embodiments have their own focuses. For parts not detailed or recorded in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0096] The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, a technical solution formed by mutually replacing the above features with (but not limited to) technical features having similar functions disclosed in the present application.

Claims

1. A multi-belt continuously variable speed regulation method, characterized in that, The method includes: the driving I-shaped wheel (9) transfers kinetic energy to the driven I-shaped wheel (31) through the belt of the V-belt drive structure (59); the driving belt groove slider (11) for transmitting kinetic energy is embedded in the middle of the chute track, and the reciprocating rotation of the left driving chute flange (5) and the right driving chute flange (6) drives the up and down movement of the driving belt groove slider (11) in the chute track, resulting in the enlargement and reduction of the outer diameter of the driving belt groove slider (11); a size switching function corresponding to the driven wheel sliding module is formed. When the driven I-shaped wheel (31) rotates, it drives the first central wheel (49) and the second central wheel to rotate synchronously. The first central wheel (49) and the second central wheel respectively drive the first planetary wheel (48) and the second planetary wheel to rotate, and then the first planetary wheel (48) and the second planetary wheel jointly drive the internal gear ring (44) to rotate. The driving motor (39) drives the worm (40) to rotate, and the worm (40) drives the worm wheel to rotate (41); the worm wheel (41) drives the planet carrier connecting shaft (38) to rotate and then drives the planetary gear speed regulating frame (42) to rotate; the first central wheel (49) in the planetary gear speed regulating frame (42) drives the flange shaft to rotate, and the flange shaft drives the right driven chute flange (32) and the left driven chute flange (33) to rotate synchronously. The right driven chute flange (32) and the left driven chute flange (33) drive the driven wheel sliding module to move up and down synchronously in the chute track of the driven I-shaped wheel (31) through the flange slide chute (23). By controlling and changing the size of the outer diameter of the driven wheel sliding module, the kinetic energy is transmitted back to the driving belt groove slider (11) of the driving wheel structure (45) through the V-belt (30), generating a reduction and enlargement function corresponding to the outer diameter of the driven wheel sliding module.

2. The multi-belt stepless speed regulation method according to claim 1, wherein The internal gear ring (44) is used for the kinetic energy conversion and connection between the planetary gear speed regulating frame (42) and the fixed frame.

3. A multi-belt continuously variable transmission device, characterized in that, The device is realized by the multi-belt stepless speed regulation control method described in any one of claims 1-2. The device includes: a driving wheel structure (45), a driven wheel structure (46), a speed regulation structure (58), and a V-belt drive structure (59). The driving wheel structure (45) is used to provide the input power. The driven wheel structure (46) is used to output power. The speed regulation structure (58) is used to adjust the speed change. The V-belt drive structure (59) is used to connect the driving wheel structure (45) and the driven wheel structure (46) for power transmission.

4. The multi-belt continuously variable transmission device according to claim 3, wherein, The driving wheel structure (45) is provided with a left driving wheel cover (1), a right driving wheel cover (2), a left tension spring (3), a right tension spring (4), a left driving chute flange (5), a right driving chute flange (6), a driving I-shaped wheel (9), a driving chute flange shaft (10), and a driving belt groove slider (11). The driven wheel structure (46) is provided with a driven I-shaped wheel (31), a right driven chute flange (32), a left driven chute flange (33), a driven wheel flange shaft (34), a right driven wheel cover (35), a left driven wheel cover (36), and a driven belt groove slider (37). The speed control device (58) is provided with a planet carrier connecting shaft (38), a driving motor (39), a worm (40), a worm wheel (41), a planetary gear speed regulating frame (42), a planetary gear fixing frame (43), an internal gear ring (44), a driven wheel flange shaft (34), and a right driven wheel cover (35); The active I-shaped wheel (9) and the driven I-shaped wheel (31) are both in an I-shaped structure, with left and right structural surfaces, and the two structural surfaces are in a mirror-symmetrical and uniformly distributed structure.

5. The multi-belt continuously variable transmission device according to claim 4, wherein, Both the active I-shaped wheel (9) and the driven I-shaped wheel (31) are provided with a central through hole (12), a chute track (13), a threaded hole (14), a fan blade module (15), a V-shaped notch (16), a blade process hole (19), and a chute track process hole (20); The blade process hole (19) is further provided with a right pull spring pin (17) and a left pull spring pin (18) for positioning; the central through hole (12) is a circular through hole; the fan blade module (15) is in an L-shaped structure, and the fan blade module (15) is provided with a blade process hole (19), a thread (14), and a V-shaped notch (16); the chute track process opening (20) is symmetrically connected to the hole position of the chute track (13); the chute track (13) is an open T-shaped through structure; the number is set to N.

6. The multi-belt continuously variable transmission device according to claim 4, characterized in that, Both the active belt groove slider (11) or the driven belt groove slider (37) have a belt groove (26), a cylindrical flange pin (27), a chute positioning block (28), and a positioning block groove (29); the number of the belt grooves (26) is set to N, and the number of the active belt groove slider (11) or the driven belt groove slider (37) corresponds to the number of the chute tracks (13).

7. The multi-belt continuously variable transmission device according to claim 4, characterized in that, It further includes a left chute flange structure (7), and the left chute flange structure (7) is a left active chute flange (5) or a left driven chute flange (33); the right chute flange structure (8) is a right active chute flange (6) or a right driven chute flange (32); The left chute flange structure (7) and the right chute flange structure (8) are respectively provided with a pull spring pin (21) and a pull spring retaining ring (22); The left chute flange structure (7) and the right chute flange structure (8) are both provided with a flange chute track (23), a flange through hole (24), and a flange V-shaped groove (25); wherein the flange chute track (23) is a semi-circular and through closed structure, and the number of the flange chute tracks (23) corresponds to the number of the chute tracks (13); The active I-shaped wheel (9) is assembled with the left active chute flange (5), the right active chute flange (6), the active chute flange shaft (10), the active belt groove slider (11), the left pull spring (3), and the right pull spring (4) to form an integral structure; The active chute flange shaft (10) is inserted and assembled through the central through hole (12) of the I-shaped wheel and hinged with the left active chute flange (5) and the right active chute flange (6) to form a rotatable integrated structure; The active belt groove slider (11) is distributed around the chute track (13) in the middle of the left and right structural surfaces of the active I-shaped wheel (9); the flange pin (27) in the active belt groove slider (11) is correspondingly connected with the flange slide groove (23), and the chute positioning block (28) is correspondingly connected with the chute track (13). The left tension spring (3) or the right tension spring (4) is sleeved outside the tension spring retaining ring (22). The two ends of the left tension spring (3) are respectively assembled and hinged with the tension spring pin (21) and the left tension spring pin (18); the two ends of the right tension spring (4) are respectively assembled and hinged with the tension spring pin (21) and the right tension spring pin (17). The left tension spring (3) or the right tension spring (4) exerts a traction force on the structures of the left active chute flange (5) and the right active chute flange (6) to act on the active belt groove slider (11) to generate an outward expansion force.

8. The multi-belt continuously variable transmission device according to claim 4, characterized in that, The planetary gear speed regulating frame (42) is provided with a rotary adjusting frame (47), a first planetary gear (48), and a first central gear (49); the rotary speed regulating frame (47) is set as a rotatable adjusting device.

9. The multi-belt continuously variable transmission device according to claim 4, wherein The planetary gear fixing frame (43) is assembled and matched with the right driven wheel cover (35) and the flange shaft (34) to form a fixed planetary frame combined structure. The second central gear (57) is assembled and fitted with the end of the right driven wheel cover (35) to form a whole.

10. The multi-belt continuously variable transmission device according to claim 4, characterized in that, The planetary frame connecting shaft (38), the drive motor (39), the worm (40), the worm gear (41), and the planetary gear speed regulating frame (42) are combined to form a motor drive module. The drive motor (39) is assembled and fitted with the worm (40); the two ends of the planetary frame connecting shaft (38) are respectively assembled and fitted with the planetary gear speed regulating frame (42) and the worm gear (41). The fixed planetary frame combined structure, the motor drive module, and the internal gear ring (44) are assembled into a speed change and adjustment combined structure.

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