Pyramid type stepless speed change mechanism and vehicle

Abstract

The utility model discloses a pyramid type stepless speed change mechanism and a vehicle, and relates to the field of stepless speed change mechanisms for riding vehicles. According to the technical scheme, the device comprises a main shaft, a pyramid speed change assembly, a speed change adjusting assembly, an output shell and a planetary gear input assembly; the planetary gear input assembly comprises an input gear ring used for receiving input torque, an input planet carrier fixedly arranged on the main shaft, an input planet wheel arranged on the input planet carrier and an input sun wheel used for transmitting torque to the pyramid speed change assembly. The pyramid speed change assembly comprises a pyramid and a pyramid support used for bearing the pyramid. A limiting guide assembly used for limiting rotation of the pyramid support is arranged between the pyramid support and the input planet carrier. The planetary gear input assembly integrates three functions including speed increasing adjustment, rotation direction adjustment and guiding and limiting of the pyramid support, so that the structure of the pyramid type stepless speed change mechanism can be optimized, and riding experience is optimized.

Description

Technical Field

[0001] The utility model relates to the field of a continuously variable transmission mechanism for a riding vehicle, and more specifically, to a diamond cone type continuously variable transmission mechanism and a vehicle. Background Art

[0002] The existing Chinese patent with authorization announcement number CN208931571U discloses a diamond cone type continuously variable transmission mechanism for bicycles, which includes an input and output mechanism and a speed regulating and speed changing mechanism; the input and output mechanism includes an input disk and an output disk; the speed regulating and speed changing mechanism includes a wheel shaft, a pressure sleeve, a speed regulating screw shaft, a speed regulating pinion, a nut slider, a half-split sleeve, a diamond cone frame, a pressure plate, a diamond cone spindle, a diamond cone and a copper sleeve; the speed regulating screw shaft is inserted into the wheel shaft, the speed regulating pinion is embedded in the groove of the wheel shaft and meshes with the gear teeth of the speed regulating screw shaft, the nut slider passes through the through hole in the middle of the wheel shaft and is installed on the speed regulating screw shaft to form a spiral pair, and the half-split sleeve is divided into left and right parts, which are installed on both sides of the nut slider to form a moving pair with the shoulder part in the middle of the wheel shaft.

[0003] The speed regulating and shifting mechanism in the above patent adopts a diamond-cone transmission mechanism, but there are still the following problems: (1) The torque of the input disc is directly transmitted to the diamond cone, which requires faster pedaling when starting riding, affecting the riding experience; (2) The speed regulating mechanism is arranged inside the wheel axle, resulting in a complex structure and inconvenient installation; (3) The diamond cone frame is installed on a half-split sleeve, which affects the stability of the diamond cone frame and further affects the stability of the gear. Utility Model Content

[0004] In view of the shortcomings of the prior art, one of the purposes of the present utility model is to provide a diamond-cone type continuously variable transmission mechanism, whose planetary gear input assembly integrates three functions, including speed increase adjustment, rotation direction adjustment, and guiding and limiting the diamond-cone bracket, so as to optimize the structure of the diamond-cone type continuously variable transmission mechanism and optimize the riding experience.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A diamond cone type continuously variable speed mechanism, comprising a main shaft, a diamond cone speed change assembly, a speed change adjustment assembly and an output housing, and also comprising a planetary gear input assembly;

[0007] The planetary gear input assembly includes an input ring gear for receiving input torque, an input planet carrier fixedly arranged on the main shaft, an input planet gear arranged on the input planet carrier, and an input sun gear for transmitting torque to the diamond cone transmission assembly;

[0008] The rhombus-cone speed change assembly comprises a rhombus-cone and a rhombus-cone bracket for carrying the rhombus-cone;

[0009] A limiting guide assembly for limiting the rotation of the rhombus-shaped bracket is provided between the rhombus-shaped bracket and the input planetary bracket;

[0010] The speed-changing adjustment assembly is used to control the axial movement of the rhombus-shaped support relative to the main shaft.

[0011] Furthermore, the position limiting guide assembly comprises a guide rod fixedly arranged on the rhombus cone bracket, and the guide rod is slidably embedded in the input planet carrier;

[0012] Alternatively, the position limiting guide assembly comprises a guide rod arranged on the input planetary carrier, and a guide sleeve arranged on the rhombus cone bracket; the guide rod is slidably embedded in the guide sleeve.

[0013] Furthermore, the diamond cone speed change assembly further comprises a self-tightening input assembly rollingly supported on the main shaft, and a self-tightening output assembly connected to the output housing; the diamond cone is provided with a first annular cone surface cooperating with the self-tightening input assembly, and a second annular cone surface cooperating with the self-tightening output assembly;

[0014] A clutch assembly is provided between the input sun gear and the self-tightening input assembly, or a clutch assembly is provided between the output housing and the self-tightening output assembly.

[0015] Further, the self-tightening input assembly includes a first input ring, a second input ring, and a first spring disposed between the first input ring and the second input ring;

[0016] The second input ring is engaged with the first ring cone;

[0017] The clutch assembly is integrated between the input sun gear and the first input ring.

[0018] Furthermore, the first input ring serves as the clutch inner ring of the clutch assembly, the input sun gear serves as the clutch outer ring of the clutch assembly, and the clutch assembly further comprises a clutch driving member disposed between the first input ring and the input sun gear.

[0019] Furthermore, a plane bearing is provided between the first input ring and the input planet carrier.

[0020] Furthermore, the self-tightening output assembly includes a first output ring, a second output ring and a second spring arranged between the first output ring and the second output ring; the first output ring is engaged with the second ring conical surface; the end face of the second output ring is provided with a limit block, and the inner end face of the output shell is provided with a limit groove cooperating with the limit block.

[0021] Furthermore, the speed adjustment component includes an outer screw sleeve rollingly supported on the main shaft, and an inner screw sleeve fixedly arranged on the rhombus cone bracket and matched with the outer screw sleeve.

[0022] Furthermore, the speed adjustment assembly also includes a gear assembly connected to the outer screw sleeve, and a cable ring or an adjustment motor connected to the gear assembly.

[0023] Furthermore, a fixed bracket is provided on the main shaft, and a shaft is provided on the fixed bracket; the gear assembly includes a driving gear rollingly supported on the shaft, and a driven gear provided on the outer screw sleeve; the adjusting motor is installed on the fixed bracket, a worm is provided on the motor shaft of the adjusting motor, and a worm wheel cooperating with the worm is provided on the driving gear.

[0024] Furthermore, a circuit board is arranged on the fixed bracket, and a Hall element is arranged on the circuit board; an angle magnetic ring cooperating with the Hall element is arranged on the outer screw sleeve, and / or a speed magnetic ring cooperating with the Hall element is arranged in the output housing.

[0025] Furthermore, the circuit board is connected with a lead wire, a lead wire hole for the lead wire to pass through is arranged in the main shaft, and a lead wire connector injection-molded in the lead wire hole is arranged at the end of the lead wire.

[0026] Furthermore, the gear assembly includes an adjusting planetary carrier fixedly arranged on the main shaft, an adjusting planetary wheel arranged on the adjusting planetary carrier, an adjusting sun wheel arranged on the outer screw sleeve, and an adjusting ring gear; the adjusting ring gear extends to protrude from the output housing, and the cable ring is sleeved on the protruding end of the adjusting ring gear.

[0027] Furthermore, a filling piece for changing the lubricating oil level is provided on the inner side wall of the output housing.

[0028] Another object of the utility model is to provide a vehicle, which includes the above-mentioned diamond-cone type continuously variable transmission mechanism.

[0029] In summary, the utility model has the following beneficial effects:

[0030] 1. In the planetary gear input assembly, the speed of the input sun gear is greater than the speed of the input ring gear, forming a speed increase regulation, so there is no need to pedal quickly when starting to ride, which optimizes the riding experience; at the same time, the rotation directions of the input ring gear and the input sun gear are opposite, and the rotation directions of the self-tightening input assembly and the self-tightening output assembly are opposite, so the rotation directions of the input ring gear and the output housing are the same, that is, the pedaling direction is the same as the traveling direction, thereby optimizing the riding experience and simplifying the vehicle structure;

[0031] 2. The limit guide assembly is used to limit the circumferential rotation of the diamond cone bracket and guide the axial movement of the diamond cone bracket, which is beneficial to improve the stability of the diamond cone bracket; the limit guide assembly is arranged between the diamond cone bracket and the input planetary carrier to make full use of the axial space between the diamond cone bracket and the input planetary carrier, which is beneficial to optimize the axial size of the mechanism;

[0032] 3. The planetary gear input assembly integrates three functions, including speed regulation, rotation direction regulation, and guiding and limiting the diamond cone bracket, thereby optimizing the structure of the diamond cone continuously variable transmission mechanism and optimizing the riding experience;

[0033] 4. The outer screw sleeve and the inner screw sleeve cooperate with each other, the structure is simple and easy to assemble. At the same time, the self-locking property can prevent the diamond cone bracket from moving along the axial direction, ensuring the stability after adjustment. The inner screw sleeve and the diamond cone bracket are integrally formed, which can simplify the structure, reduce the number of parts and assembly procedures, and improve the structural strength.

[0034] 5. The clutch assembly is integrated between the input sun gear and the first input ring, thereby optimizing the radial dimensions and reducing the number of parts and assembly steps;

[0035] 6. The worm and the worm wheel cooperate with each other. On the one hand, the self-locking property can further improve the stability after adjustment. On the other hand, the rotation direction can be changed, so that the adjustment motor is arranged in the limited space in the output housing in a direction perpendicular to the main axis, thereby optimizing the axial size of the mechanism.

[0036] 7. An angle magnetic ring that cooperates with the Hall element is set on the outer screw sleeve. By detecting the angle of the outer screw sleeve, the axial position of the diamond cone bracket and the corresponding speed ratio can be obtained; a speed magnetic ring that cooperates with the Hall element is set in the output housing to detect the vehicle speed and provide data for automatic speed control;

[0037] 8. The lead connector is injection molded in the main shaft. After the speed change mechanism is installed on the vehicle, the lead plug outside the vehicle can be plugged into the lead connector in the main shaft. This can simplify the structure of the speed change mechanism, facilitate lead connection, and also facilitate installation and disassembly of the speed change mechanism;

[0038] 9. The filling piece fills part of the space in the accommodating cavity. Lubricating oil is arranged in the output housing. After the output housing rotates, the filling piece can increase the liquid level of the lubricating oil so that the diamond cone can fully contact with the lubricating oil, thereby improving the lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 The structure of the diamond cone type continuously variable transmission mechanism in Example 1 is shown in FIG. Figure 1 ;

[0040] Figure 2 The structure of the diamond cone type continuously variable transmission mechanism in Example 1 is shown in FIG. Figure 2 ;

[0041] Figure 3 The structure of the diamond cone type continuously variable transmission mechanism in Example 1 is shown in FIG. Figure 3 ;

[0042] Figure 4Schematic diagram of the structure of the rhombus-shaped support in Example 1;

[0043] Figure 5 is a schematic structural diagram of the self-tightening input assembly in Example 1;

[0044] Figure 6 It is a schematic diagram of the structure of the input sun gear, the clutch driving member and the first input ring in Example 1;

[0045] Figure 7 The structure of the diamond cone type continuously variable transmission mechanism in Example 1 is shown in FIG. Figure 4 ;

[0046] Figure 8 It is a structural schematic diagram of the speed change adjustment component in Example 1;

[0047] Fig. 9 The structure of the diamond cone type continuously variable transmission mechanism in Example 2 is shown in FIG. Figure 1 ;

[0048] Fig.10 The structure of the diamond cone type continuously variable transmission mechanism in Example 2 is shown in FIG. Figure 2 ;

[0049] Fig.11 Schematic diagram of the structure of the self-tightening input component and the self-tightening output component in Example 3;

[0050] Fig.12 The schematic diagram of the diamond cone type continuously variable transmission mechanism Figure 1 ;

[0051] Fig.13 The schematic diagram of the diamond cone type continuously variable transmission mechanism Figure 2 .

[0052] In the figure: 1, main shaft; 11, lead hole; 2, output housing; 311, input sleeve; 312, input ring plate; 313, input ring gear; 32, input planetary carrier; 321, guide rod; 33, input planetary gear; 34, input sun gear; 35, clutch drive; 411, first input ring; 412, second input ring; 413, first retainer; 414, first thrust column; 415, first spring; 42, diamond cone bracket; 421, guide sleeve; 422, inner screw sleeve; 43, diamond cone shaft; 44, diamond cone; 451, first output ring; 452, second output ring; 453, The second retaining frame; 454, the second thrust column; 455, the second spring; 456, the limit block; 51, the outer screw sleeve; 511, the driven gear; 512, the adjusting sun gear; 52, the fixing bracket; 521, the shaft; 531, the driving gear; 532, the worm gear; 54, the adjusting motor; 55, the worm; 56, the circuit board; 57, the lead connector; 571, the lead wire; 581, the angle magnetic ring; 582, the speed magnetic ring; 61, the adjusting planetary carrier; 62, the adjusting planetary gear; 631, the adjusting gear ring; 632, the adjusting ring plate; 633, the adjusting sleeve; 64, the cable ring; 7, the filling piece. DETAILED DESCRIPTION

[0053] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0054] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0055] Embodiment 1:

[0056] A diamond cone type continuously variable transmission mechanism, referring to Figures 1 to 8 It includes a main shaft 1, a diamond cone speed change assembly, a speed adjustment assembly, a planetary gear input assembly and an output housing 2; a receiving cavity is formed between the main shaft 1 and the output housing 2, and the planetary gear input assembly, the diamond cone speed change assembly and the speed adjustment assembly are arranged in the receiving cavity; the planetary gear input assembly is used to receive input torque, and after being transmitted by the diamond cone speed change assembly, the torque is output by the output housing 2; the speed adjustment assembly is used to adjust the diamond cone speed change assembly to achieve stepless speed change.

[0057] Reference Figures 1 to 8Specifically, the planetary gear input assembly in this embodiment includes an input ring gear 313 for receiving input torque, an input planet carrier 32 fixedly arranged on the main shaft 1, an input planetary gear 33 arranged on the input planet carrier 32, and an input sun gear 34 for transmitting torque to the diamond cone transmission assembly; wherein, one end of the input ring gear 313 away from the diamond cone transmission assembly extends radially inward to form an input ring plate 312, and the radial inner end of the input ring plate 312 extends axially to form an input sleeve 311; the input sleeve 311 extends out of the output housing 2 to receive input torque; in this embodiment, the input sleeve 311 and the input ring plate 312 The input ring gear 313 is integrally formed, which is beneficial to reducing the number of parts and assembly procedures, and can optimize the axial gears; in the planetary gear input assembly of this embodiment, the rotation speed of the input sun gear 34 is greater than the rotation speed of the input ring gear 313, forming a speed increase regulation, so there is no need to pedal quickly when starting riding, thereby optimizing the riding experience; at the same time, the input ring gear 313 and the input sun gear 34 have opposite rotation directions, and the input end and the output end of the diamond cone speed change assembly have opposite rotation directions, so the input ring gear 313 and the output housing 2 have the same rotation direction, that is, the pedaling direction is the same as the travel direction, thereby optimizing the riding experience and simplifying the entire vehicle structure.

[0058] Reference Figures 1 to 8 as well as Fig.11 and Fig.12 In this embodiment, the rhombus speed change assembly includes a self-tightening input assembly, a rhombus bracket 42, a plurality of rhombus shafts 43 arranged on the rhombus bracket 42, a rhombus 44 rolling-supported on the rhombus shaft 43, and a self-tightening output assembly; the rhombus 44 is respectively provided with a first annular cone surface that cooperates with the self-tightening input assembly, and a second annular cone surface that cooperates with the self-tightening output assembly; in this embodiment, a limit guide assembly for limiting the rotation of the rhombus bracket 42 is arranged between the rhombus bracket 42 and the input planetary carrier 32, so that the rhombus bracket 42 can only move axially relative to the main shaft 1; the speed change adjustment assembly is used to control the axial movement of the rhombus bracket 42 relative to the main shaft 1, thereby realizing speed change adjustment; the limit guide assembly is used to limit the circumferential rotation of the rhombus bracket 42 and guide the axial movement of the rhombus bracket 42, which is beneficial to improve the stability of the rhombus bracket 42; in this embodiment, a limit guide assembly is arranged between the rhombus bracket 42 and the input planetary carrier 32, and the axial space between the rhombus bracket 42 and the input planetary carrier 32 is fully utilized, which is beneficial to optimize the axial size of the mechanism.

[0059] Reference Figures 1 to 8 as well as Fig.12 and Fig.13 , the speed ratio i of the diamond cone speed change assembly is: When the diamond cone bracket moves from right to left, r1 increases and r2 decreases, thereby achieving deceleration adjustment; when the diamond cone bracket moves from left to right, r1 decreases and r2 increases, thereby achieving speed increase adjustment.

[0060] Reference Figures 1 to 8 That is to say, the planetary gear input assembly in this embodiment integrates three functions, including speed increase regulation, rotation direction regulation, and guiding and limiting the diamond cone bracket 42, thereby optimizing the structure of the diamond cone continuously variable transmission mechanism and optimizing the riding experience.

[0061] Reference Figures 1 to 8 Specifically, the position limiting guide assembly in this embodiment includes a guide rod 321, and a guide sleeve 421 is provided on the rhombus bracket 42. The guide rod 321 is fixedly arranged in the guide sleeve 421, so that the structural strength and stability of the guide rod 321 can be improved; the guide rod 321 can be slidably embedded in the input planetary carrier 32, so as to achieve the role of position limiting guidance; preferably, in this embodiment, two position limiting guide assemblies arranged at 180° are provided between the rhombus bracket 42 and the input planetary carrier 32, so as to further improve the stability of the rhombus bracket; of course, in other optional embodiments, The limiting guide assembly may also adopt other structures, which are not limited here; specifically, the end surface of the input planetary carrier 32 is provided with a through hole that cooperates with the guide rod 321, the guide rod 321 is embedded in the through hole, and the guide rod 321 is located in the gap between adjacent input planetary gears 33, then the guide rod 321 will not interfere with the input planetary gear 33; of course, in other optional embodiments, the guide rod 321 may also be fixedly connected to the input planetary carrier 32, and the guide rod 321 may be slidably embedded in the guide sleeve 421, so that the guide rod 321 does not interfere with the rhombus 44, which is not limited here.

[0062] Reference Figures 1 to 8 A clutch assembly is provided between the input sun gear 34 and the self-tightening input assembly, or a clutch assembly is provided between the output housing 2 and the self-tightening output assembly. When the vehicle is coasting, the torque of the output housing 2 cannot be transmitted to the input sleeve 311, thereby optimizing the riding experience. Preferably, in this embodiment, a clutch assembly is provided between the input sun gear 34 and the self-tightening input assembly, so as to facilitate the layout and optimize the axial size of the mechanism.

[0063] Reference Figures 1 to 8Specifically, the self-tightening input assembly includes a first input ring 411, a second input ring 412, and a first retaining frame 413, a first thrust column 414 and a first spring 415 arranged between the first input ring 411 and the second input ring 412; wherein the second input ring 412 is engaged with the first ring cone surface on the diamond cone 44; the clutch assembly is integrated between the input sun gear 34 and the first input ring 411, so as to optimize the radial size and reduce the number of parts and assembly procedures; specifically, in this embodiment, the first input ring 411 is used as the clutch inner ring of the clutch assembly, and the input sun gear 34 is used as the clutch inner ring of the clutch assembly. The positive gear 34 serves as the clutch outer ring of the clutch assembly, and the clutch assembly also includes a clutch driving member 35 arranged between the first input ring 411 and the input sun gear 34; that is, the clutch driving member 35 is embedded in the outer wall of the first input ring 411, and the inner wall of the input sun gear 34 forms a ratchet; in this embodiment, the clutch driving member 35 is a pawl, and an elastic retaining ring is sleeved on the clutch driving member 35; the ratchet and pawl clutch assembly has the advantages of high structural strength and long service life; of course, in other optional embodiments, the clutch assembly can also adopt other structures, which are not limited here.

[0064] Reference Figures 1 to 8 In this embodiment, a needle bearing is embedded in the inner wall of the first input ring 411, and the needle bearing is sleeved on the main shaft 1, so that the first input ring 411 is rollingly supported on the main shaft 1; embedding the needle bearing in the inner wall of the first input ring 411 is conducive to optimizing the radial dimension; a plane bearing is provided between the first input ring 411 and the input planetary carrier 32, and the input planetary carrier 32 is fixed on the main shaft 1, and the plane bearing is used to roll and limit the end face of the first input ring 411; preferably, the plane bearing is embedded in the end face of the input planetary carrier 32, so as to optimize the axial dimension.

[0065] Reference Figures 1 to 8 In this embodiment, the self-tightening output assembly includes a first output ring 451, a second output ring 452, and a second retaining frame 453, a second thrust column 454 and a second spring 455 arranged between the first output ring 451 and the second output ring 452; the first output ring 451 is engaged with the second ring cone surface on the rhombus cone 44; a limiting block 456 is provided on the end surface of the second output ring 452, and a limiting groove matched with the limiting block 456 is provided on the inner end surface of the output housing 2; the limiting block 456 cooperates with the limiting groove, which is conducive to improving the stability of the transmission between the second output ring 452 and the output housing 2; wherein, the outer wall of the first output ring 451 and the inner wall of the output housing 2 are clearance fit, and the outer wall of the second output ring 452 and the inner wall of the output housing 2 are interference fit, that is, the second output ring 452 is fixedly connected to the output housing 2.

[0066] Reference Figures 1 to 8Specifically, the speed adjustment component in this embodiment includes an outer screw sleeve 51 rollingly supported on the main shaft 1, and an inner screw sleeve 422 fixedly arranged on the rhombus bracket 42 and cooperating with the outer screw sleeve 51; a bearing is arranged between the outer screw sleeve 51 and the main shaft 1, so that the outer screw sleeve 51 can rotate around the main shaft 1, but cannot move axially relative to the main shaft 1; therefore, the rotated outer screw sleeve 51 can drive the inner screw sleeve 422 to move axially, thereby driving the rhombus bracket 42 to move, and realizing speed adjustment; the outer screw sleeve 51 cooperates with the inner screw sleeve 422, the structure is simple, and it is convenient to assemble, and at the same time, the self-locking property is utilized to prevent the rhombus bracket 42 from moving axially, thereby ensuring the stability after adjustment; preferably, in this embodiment, the inner screw sleeve 422 and the rhombus bracket 42 are integrally formed, so as to simplify the structure, reduce the number of parts and assembly procedures, and improve the structural strength; in this embodiment, the inner screw sleeve 422 is located between the axial ends of the rhombus bracket 42, so as to optimize the axial size of the mechanism.

[0067] Reference Figures 1 to 8 Specifically, the speed adjustment component in this embodiment also includes a gear assembly connected to the outer screw sleeve 51, and an adjustment motor 54 connected to the gear assembly; in this embodiment, the adjustment motor 54 built into the output housing 2 is used to achieve speed adjustment, so that electronic control operation can be achieved and the riding experience is optimized; specifically, in this embodiment, a fixed bracket 52 is provided on the main shaft 1, and a shaft 521 is provided on the fixed bracket 52; the gear assembly includes a driving gear 531 rollingly supported on the shaft 521, and a driven gear 511 provided on the outer screw sleeve 51; the adjustment motor 54 is installed on the fixed bracket 52, and a worm 55 is provided on the motor shaft of the adjustment motor 54, and a worm wheel 532 cooperating with the worm 55 is provided on the driving gear 531; the adjustment motor 54 drives the worm 55 to rotate, and the worm 55 drives the worm wheel 532 rotates, the worm wheel 532 drives the driving gear 531 to rotate, the driving gear 531 drives the driven gear 511 to rotate, and the driven gear 511 drives the outer screw sleeve 51 to rotate, thereby realizing speed adjustment; the worm 55 cooperates with the worm wheel 532, on the one hand, the self-locking property can be used to further improve the stability after adjustment, and on the other hand, the rotation direction can be changed, so that the adjustment motor 54 is arranged in a limited space in the output housing 2 along a direction perpendicular to the main shaft 1, thereby optimizing the axial size of the mechanism; in this embodiment, the driven gear 511 and the outer screw sleeve 51 are integrally formed, and the driving gear 531 and the worm wheel 532 are integrally formed, which can simplify the structure, reduce the number of parts and assembly procedures, and improve the structural strength; of course, in other optional embodiments, the gear assembly can also adopt other structures, which are not limited here.

[0068] Reference Figures 1 to 8Preferably, a circuit board 56 is provided on the fixed bracket 52, and one or more Hall elements (not shown in the drawings) are provided on the circuit board 56; wherein, an angle magnetic ring 581 cooperating with the Hall element is provided on the outer screw sleeve 51, and the axial position and the corresponding speed ratio of the rhombus cone bracket 42 are obtained by detecting the angle of rotation of the outer screw sleeve 51; a speed magnetic ring 582 cooperating with the Hall element is provided in the output housing 2 for detecting the vehicle speed and providing data for automatic speed control; the circuit board 56 is connected to a lead wire 571, and a lead wire hole 11 for the lead wire 571 to pass through is provided in the main shaft 1, and a lead wire connector 57 injection molded in the lead wire hole 11 is provided at the end of the lead wire 571; in this embodiment, the lead wire connector 57 is injection molded in the main shaft 1, and after the speed change mechanism is installed on the vehicle, the lead wire plug outside the vehicle can be plugged into the lead wire connector 57 in the main shaft 1, which can simplify the structure of the speed change mechanism, facilitate the lead wire connection, and also facilitate the installation and disassembly of the speed change mechanism.

[0069] Reference Figures 1 to 8 Preferably, the inner wall of the output housing 2 is provided with a filling piece 7 for changing the lubricating oil level; specifically, the filling piece 7 can be made of foam material, which has the advantage of being lightweight; the filling piece 7 fills part of the space in the accommodating cavity, and the output housing 2 is provided with lubricating oil. After the output housing 2 rotates, the filling piece 7 can increase the lubricating oil level, so that the diamond cone 44 can fully contact the lubricating oil, thereby improving the lubrication effect.

[0070] Embodiment 2:

[0071] A diamond cone type continuously variable transmission mechanism, referring to Figures 1 to 10 , based on Example 1, the difference between this embodiment and Example 1 is that: in this embodiment, a cable ring 64 is used to connect with the gear assembly to achieve speed adjustment; specifically, the gear assembly includes an adjusting planetary carrier 61 fixedly arranged on the main shaft 1, an adjusting planetary wheel 62 arranged on the adjusting planetary carrier 61, an adjusting sun wheel 512 arranged on the outer screw sleeve 51, and an adjusting ring gear 631; the adjusting ring gear 631 extends to extend out of the output housing 2, and the cable ring 64 is sleeved on the protruding end of the adjusting ring gear 631; the cable ring 64 is connected to the cable mechanism on the vehicle to achieve speed adjustment; in this embodiment, the gear assembly is a planetary gear assembly, and the adjusting planetary wheel 62 is a double-linked planetary wheel, and the rotation speed of the adjusting sun wheel 512 is greater than the rotation speed of the cable ring 64, so that speed adjustment can be easily achieved and the riding experience is optimized.

[0072] Reference Figures 1 to 10Specifically, the end of the adjusting gear ring 631 extends radially inward to form an adjusting ring plate 632, and the radial inner end of the adjusting ring plate 632 extends axially to form an adjusting sleeve 633; ​​the adjusting sleeve 633 extends out of the output housing 2, and the cable ring 64 is sleeved on the protruding end of the adjusting sleeve 633; ​​in this embodiment, the adjusting gear ring 631, the adjusting ring plate 632 and the adjusting sleeve 633 are integrally formed, and the adjusting sun gear 512 and the outer screw sleeve 51 are integrally formed, which can simplify the structure, reduce the number of parts and assembly procedures, and improve the structural strength; of course, in other optional embodiments, the gear assembly can also adopt other structures, which are not limited here.

[0073] Embodiment 3:

[0074] A diamond cone type continuously variable transmission mechanism, referring to Figures 1 to 11 Based on Example 1 or Example 2, the difference between this embodiment and Example 1 or Example 2 is that: in this embodiment, the self-tightening input component includes a first input ring 411, a second input ring 412, and a first spring 415 arranged between the first input ring 411 and the second input ring 412; the first input ring 411 is directly engaged with the second input ring 412, and the thrust column and the retaining frame are eliminated, which can simplify the structure, reduce the number of parts and improve the structural strength; the self-tightening output component includes a first output ring 451, a second output ring 452, and a second spring 455 arranged between the first output ring 451 and the second output ring 452; the first output ring 451 is directly engaged with the second output ring 452, and the thrust column and the retaining frame are eliminated, which can simplify the structure, reduce the number of parts and improve the structural strength.

[0075] Embodiment 4:

[0076] A vehicle, see Figures 1 to 13 , which includes the diamond-cone type continuously variable transmission mechanism in Example 1, Example 2 or Example 3; in this embodiment, the vehicle is a bicycle, a power-assisted bicycle or an electric motorcycle, etc., and can install and use a continuously variable transmission mechanism, and there is no limitation here.

Claims

1. A diamond cone type continuously variable transmission mechanism, comprising a main shaft, a diamond cone speed change assembly, a speed change adjustment assembly and an output housing, characterized in that: Also included is a planetary gear input assembly; The planetary gear input assembly includes an input ring gear for receiving input torque, an input planet carrier fixedly arranged on the main shaft, an input planet gear arranged on the input planet carrier, and an input sun gear for transmitting torque to the diamond cone transmission assembly; The rhombus-cone speed change assembly comprises a rhombus-cone and a rhombus-cone bracket for carrying the rhombus-cone; A limiting guide assembly for limiting the rotation of the rhombus-shaped bracket is provided between the rhombus-shaped bracket and the input planetary bracket; The speed-changing adjustment assembly is used to control the axial movement of the rhombus-shaped support relative to the main shaft.

2. The diamond cone type continuously variable transmission mechanism according to claim 1, characterized in that: The position limiting guide assembly comprises a guide rod fixedly arranged on the rhombus cone bracket, and the guide rod is slidably embedded in the input planet carrier; Alternatively, the position limiting guide assembly comprises a guide rod arranged on the input planetary carrier, and a guide sleeve arranged on the rhombus cone bracket; the guide rod is slidably embedded in the guide sleeve.

3. The diamond cone type continuously variable transmission mechanism according to claim 1, characterized in that: The diamond cone speed change assembly also includes a self-tightening input assembly rollingly supported on the main shaft, and a self-tightening output assembly connected to the output housing; the diamond cone is respectively provided with a first annular cone surface cooperating with the self-tightening input assembly, and a second annular cone surface cooperating with the self-tightening output assembly; A clutch assembly is provided between the input sun gear and the self-tightening input assembly, or a clutch assembly is provided between the output housing and the self-tightening output assembly.

4. The diamond cone type continuously variable transmission mechanism according to claim 3, characterized in that: The self-tightening input assembly includes a first input ring, a second input ring, and a first spring disposed between the first input ring and the second input ring; The second input ring is engaged with the first ring cone; The clutch assembly is integrated between the input sun gear and the first input ring.

5. The diamond cone type continuously variable transmission mechanism according to claim 4, characterized in that: The first input ring serves as the clutch inner ring of the clutch assembly, the input sun gear serves as the clutch outer ring of the clutch assembly, and the clutch assembly further comprises a clutch driving member disposed between the first input ring and the input sun gear.

6. The diamond cone type continuously variable transmission mechanism according to claim 4, characterized in that: A plane bearing is arranged between the first input ring and the input planet carrier.

7. The diamond cone type continuously variable transmission mechanism according to claim 3, characterized in that: The self-tightening output assembly includes a first output ring, a second output ring and a second spring arranged between the first output ring and the second output ring; the first output ring is engaged with the second ring conical surface; the end surface of the second output ring is provided with a limiting block, and the inner end surface of the output shell is provided with a limiting groove that cooperates with the limiting block.

8. The diamond cone type continuously variable transmission mechanism according to claim 1, characterized in that: The speed change adjustment component comprises an outer screw sleeve which is rollingly supported on the main shaft, and an inner screw sleeve which is fixedly arranged on the rhombus cone bracket and matched with the outer screw sleeve.

9. The diamond cone type continuously variable transmission mechanism according to claim 8, characterized in that: The speed-changing adjustment component also includes a gear component connected to the outer screw sleeve, and a cable ring or an adjustment motor connected to the gear component.

10. The diamond cone type continuously variable transmission mechanism according to claim 9, characterized in that: The main shaft is provided with a fixed bracket, and a shaft is provided on the fixed bracket; the gear assembly includes a driving gear rollingly supported on the shaft, and a driven gear provided on the outer screw sleeve; the adjusting motor is installed on the fixed bracket, a worm is provided on the motor shaft of the adjusting motor, and a worm wheel cooperating with the worm is provided on the driving gear.

11. The diamond cone type continuously variable transmission mechanism according to claim 10, characterized in that: The fixing bracket is provided with a circuit board, and the circuit board is provided with a Hall element; the outer screw sleeve is provided with an angle magnetic ring cooperating with the Hall element, and / or the output housing is provided with a speed magnetic ring cooperating with the Hall element.

12. The diamond cone type continuously variable transmission mechanism according to claim 11, characterized in that: The circuit board is connected with a lead wire, the main shaft is provided with a lead wire hole for the lead wire to pass through, and the end of the lead wire is provided with a lead wire connector which is injection-molded in the lead wire hole.

13. The diamond cone type continuously variable transmission mechanism according to claim 9, characterized in that: The gear assembly includes an adjusting planetary carrier fixedly arranged on the main shaft, an adjusting planetary wheel arranged on the adjusting planetary carrier, an adjusting sun wheel arranged on the outer screw sleeve, and an adjusting ring gear; the adjusting ring gear extends to protrude from the output housing, and the cable ring is sleeved on the protruding end of the adjusting ring gear.

14. The diamond cone type continuously variable transmission mechanism according to claim 1, characterized in that: The inner side wall of the output housing is provided with a filling piece for changing the liquid level of the lubricating oil.

15. A vehicle, characterized in that: It includes the diamond cone type continuously variable transmission mechanism described in any one of claims 1-14.

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