CN216642998U - Continuously variable transmission and variable diameter wheel structure thereof - Google Patents
Continuously variable transmission and variable diameter wheel structure thereof Download PDFInfo
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- CN216642998U CN216642998U CN202121649067.XU CN202121649067U CN216642998U CN 216642998 U CN216642998 U CN 216642998U CN 202121649067 U CN202121649067 U CN 202121649067U CN 216642998 U CN216642998 U CN 216642998U
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Abstract
The utility model discloses a continuously variable transmission and a diameter-variable wheel structure thereof, which comprise a mounting shaft, wherein a first sun wheel is coupled to the mounting shaft, a first planet wheel is meshed with the periphery of the first sun wheel, the first planet wheel is connected to a first planet carrier, and the first planet carrier is connected with the mounting shaft; the first planet wheel is connected with a belt sheet through a connecting rod to form a reducing structure, the first sun wheel is connected with a second sun wheel, the periphery of the second sun wheel is meshed with a second planet wheel, the second planet wheel is connected with a second planet carrier in a shaft connection mode, and the periphery of the second planet carrier forms a regulating structure; a third sun gear is fixed on the mounting shaft, and a third planet gear is meshed outside the third sun gear. The utility model can realize the outer diameters of the two driving wheels through one power structure, realize the stepless regulation of the speed changer, and change the width of the speed changer according to the requirement, thereby using a driving belt with larger width to transmit larger torque and greatly reducing the cost of the stepless speed changer.
Description
Technical Field
The utility model belongs to the field of machinery, and particularly relates to a continuously variable transmission and a variable diameter wheel structure thereof.
Background
The existing continuously variable transmission generally adopts a conical disc and a constraint steel belt, and is in a structure of clamping the belt by two conical discs, the stress area of the existing continuously variable transmission is only provided with a clamping part at two sides, if a belt is used, the belt cannot be suitable for high power, so the existing continuously variable transmission is replaced by the constraint steel belt, the steel belt needs to be lubricated by lubricating oil for heat dissipation, the structure is complex, the cost is high, in addition, the manufacturing difficulty of the existing continuously variable transmission is high, the related technology is monopolized abroad and is not suitable for high-power vehicles, and the defects of uncertain power loss and the like exist. Its advantages are high linear acceleration, full utilization of generated power, and high speed conversion. To this utility model patent CN 108006177 a discloses a planetary gear tracking meshing continuously variable transmission, realizes the change of change gear diameter through a plurality of radial extending structure to realize infinitely variable. Although the radius of the transmission wheel can be increased as required, at least three radial telescopic structures are required, and usually six structures are required for stability, so that 12 related structures are required for two transmission wheels. Therefore, the power control method is complex and high in cost. Improvements are therefore needed.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a continuously variable transmission and a diameter-variable wheel structure thereof, the utility model can realize the outer diameters of two driving wheels through one power structure, realize the stepless adjustment of the transmission, and can change the width of the transmission according to the requirement, thereby using a driving belt with larger width to transmit larger torque, greatly reducing the cost of the continuously variable transmission and simplifying the structure and the control mode of the continuously variable transmission.
In order to achieve the technical effects, the technical scheme of the utility model is as follows:
a variable-diameter wheel structure comprises an installation shaft, wherein a first sun wheel is coupled to the installation shaft, at least three first planet wheels are meshed with the periphery of the first sun wheel, the first planet wheels are connected to a first planet carrier in a shaft coupling mode, and the first planet carrier is fixedly connected with the installation shaft; the first planet wheel is connected with a belt sheet through a first connecting rod to form a reducing structure, the first sun wheel is connected with a second sun wheel, the periphery of the second sun wheel is meshed with a second planet wheel, the second planet wheel is connected with a second planet carrier in a shaft connection mode, and the periphery of the second planet carrier forms a regulating structure; a third sun gear is fixed on the mounting shaft, and a third planet gear is meshed outside the third sun gear; the second sun gear and the third sun gear are the same in size, and the second planet gear and the third planet gear are the same in size; an inner gear ring is meshed outside the second planet wheel and the third planet wheel; the second sun gear is also sleeved on the mounting shaft; the mounting shaft is coupled with a connecting plate, and the third planet wheel is coupled on the connecting plate.
In a further improvement, the mounting shaft is connected with a first power structure, and the regulating structure is connected with a second power structure.
In a further improvement, the first connecting rod is L-shaped.
In a further improvement, first planet carriers are arranged on two sides of the first sun gear, a plurality of rotating shafts are connected to the first planet carriers in a shaft coupling mode, and the first planet gears are fixedly arranged on the rotating shafts; the first sun wheel and the first planet wheel are both two groups.
In a further improvement, the belt sheet is a smooth belt sheet or a multi-wedge groove belt sheet or a tooth-shaped belt sheet.
In a further improvement, the regulating structure is a chain wheel.
In a further improvement, the belt pieces are arc-shaped belt pieces.
A continuously variable transmission comprises two variable diameter wheel structures, wherein the first connecting rods of the two variable diameter wheel structures face opposite directions, the regulating and controlling structures are in power connection through a transmission structure, and the transmission structure is connected with a second power structure through a gear; one of the two reducing wheel structures is connected with a first power structure; the reducing structures of the two reducing wheel structures are in transmission connection through a transmission belt.
Further improved, the regulating structure is a chain wheel or a driving wheel or a connecting lug; the transmission structure is a chain or a transmission belt or a second connecting rod hinged with the connecting lug, the middle part of the second connecting rod is hinged with a rocker, and the rocker is connected with a second power structure; the first power structure is a motor, and the second power structure is a motor, a rotary cylinder or a linear cylinder.
The stepless speed changer is used for realizing the speed changing function, the retarding braking function or the gear shifting and speed changing function of automobiles, tractors and motorcycles.
The utility model has the advantages that:
1. the manufacturing cost is low;
2. the transmission efficiency is higher;
3. the contact area of the wheels and the belt can be increased along with the widening of the wheels, so that the bearing capacity can be increased as required;
4. the control is simple;
5. the occupied space is small and the weight is light;
6. the torque force of the diesel engine is large, the rotating speed is low, so that the utility model is more suitable for the speed change of the diesel engine to achieve more reduction of energy consumption;
7. the present invention is also suitable for automobile, tractor, motorcycle, etc. and can also adapt to poor working environment, mechanical equipment, etc.
8. The automobile brake device is used for an automobile, can play a role in reducing the speed and braking through control, and greatly improves the controllability and the safety of the automobile. The gear ring on the driven wheel can be used for low-speed gear transmission, and the middle shaft of the driven wheel can be used for high-speed gear transmission, and can be used as a gear shifting transmission.
Drawings
FIG. 1 is a schematic drawing of a contraction structure of a diameter-variable wheel structure;
FIG. 2 is a first expanded structural view of the diameter-variable wheel structure;
FIG. 3 is a schematic diagram of a second expanded structure of the diameter-variable wheel structure;
FIG. 4 is a schematic view of the overall structure of the continuously variable transmission;
FIG. 5 is a schematic diagram of the control structure of example 2;
fig. 6 is a schematic structural view of the first carrier.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1-4, the continuously variable transmission includes two variable diameter wheel structures, wherein the first connecting rods 5 of the two variable diameter wheel structures face opposite directions, the regulating structure 7 is in power connection through a transmission structure 16, and the transmission structure 16 is connected with a second power structure through a gear; one of the two reducing wheel structures is connected with a first power structure; the reducing structures of the two reducing wheel structures are in transmission connection through a transmission belt.
The regulating structure 7 is a gear or a transmission wheel; the transmission structure 16 is a chain or a transmission belt; the first power structure and the second power structure are both motors.
The reducing wheel structure comprises a mounting shaft 1, wherein a first sun wheel 2 is coupled to the mounting shaft 1 in a shaft coupling mode, at least three first planet wheels 3 are meshed on the periphery of the first sun wheel 2, the first planet wheels 3 are coupled to a first planet carrier 4 in a shaft coupling mode, and the first planet carrier 4 is fixedly connected with the mounting shaft 1; the first planet wheel 3 is connected with a belt sheet 6 through a first connecting rod 5 to form a reducing structure, the first sun wheel 2 is connected with a second sun wheel 8, the periphery of the second sun wheel 8 is meshed with a second planet wheel 9, the second planet wheel 9 is connected with a second planet carrier 17 in a shaft coupling mode, and the periphery of the second planet carrier 17 forms a regulation and control structure 7; a third sun gear 10 is fixed on the mounting shaft 1, and a third planet gear 11 is meshed outside the third sun gear 10; the second sun gear 8 and the third sun gear 10 are the same in size, and the second planet gear 9 and the third planet gear 11 are the same in size; an inner gear ring 12 is meshed outside the second planet wheel 9 and the third planet wheel 11; the second sun gear 8 is also sleeved on the mounting shaft 1; the mounting shaft 1 is coupled with a connecting plate 15, and the third planetary gear 11 is coupled with the connecting plate 15.
The installation axle 1 is connected with first power structure, regulation and control structure 7 is connected with second power structure.
The first link 5 is L-shaped.
The two sides of the first sun gear 2 are both provided with a first planet carrier 4, the first planet carrier 4 is connected with a plurality of rotating shafts 13 in an axial connection mode, and the first planet gears 3 are fixedly arranged on the rotating shafts 13; the first sun gear 2 and the first planet gear 3 are both two sets.
The strip 6 is formed with a plurality of grooves 14. The mounting shaft 1 is coupled with a connecting plate 15. The regulating structure 7 is a chain wheel.
The using method of the utility model is as follows:
when transmission is carried out, the regulating and controlling structure 7 is braked by the second power mechanism, the first power mechanism is connected with the mounting shaft 1 with a reducing wheel structure to rotate, and the mounting shaft simultaneously drives the first planet carrier 4 and the third sun gear 10 to rotate; third sun gear 10 loops through third planet wheel 11, inner ring gear 12 and second planet wheel 9 and drives second sun gear 8 rotatory to guarantee that first sun gear keeps unanimous with first planet carrier rotational speed, make first planet wheel 3 unable rotation promptly, thereby under the pressure of drive belt, can not change the external diameter because of the rotation. When needs change gear ratio, second power unit drives regulation and control structure 7 rotatory, second planet carrier 17 follows the rotation promptly, because the rotational speed of installation axle 1 and third sun gear 10 is unanimous, the internal tooth ring 12 rotational speed that corresponds is certain, thereby the rotation of second planet carrier 17 passes through the second planet wheel and transmits the second sun gear and drive first sun gear rotatory, and then make first planet wheel the rotation appear, thereby drive first connecting rod 5 and rotate, realize the reducing, change the gear ratio of drive belt.
Example 2
As shown in fig. 5, the adjusting structure 7 is a connecting lug 18, a second connecting rod 19 hinged with the connecting lug 18, a rocker 20 is hinged in the middle of the second connecting rod 19, and the rocker 20 is connected with a second power structure which is a linear cylinder 21; the middle part of the rocker 20 is connected with a first rotating shaft 22 in a shaft coupling mode, and the linear cylinder 21 is connected with a second rotating shaft 23 in a shaft coupling mode. Therefore, the transmission ratio can be regulated and controlled by stretching and retracting the linear cylinder 21.
The above description is only one specific guiding embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention using this concept shall fall within the scope of the utility model.
Claims (7)
1. A variable-diameter wheel structure comprises a mounting shaft (1), and is characterized in that a first sun wheel (2) is coupled to the mounting shaft (1) in a shaft coupling manner, at least three first planet wheels (3) are meshed with the periphery of the first sun wheel (2), the first planet wheels (3) are coupled to a first planet carrier (4) in a shaft coupling manner, and the first planet carrier (4) is fixedly connected with the mounting shaft (1); the first planet wheel (3) is connected with a belt piece (6) through a first connecting rod (5) to form a reducing structure, the first sun wheel (2) is connected with a second sun wheel (8), the periphery of the second sun wheel (8) is meshed with a second planet wheel (9), the second planet wheel (9) is connected with a second planet carrier (17) in a shaft connection mode, and the periphery of the second planet carrier (17) forms a regulating structure (7); a third sun gear (10) is fixed on the mounting shaft (1), and a third planet gear (11) is meshed outside the third sun gear (10); the second sun wheel (8) and the third sun wheel (10) are the same in size, and the second planet wheel (9) and the third planet wheel (11) are the same in size; an inner gear ring (12) is meshed outside the second planet wheel (9) and the third planet wheel (11); the second sun gear (8) is also sleeved on the mounting shaft (1); the mounting shaft (1) is coupled with a connecting plate (15), and the third planet wheel (11) is coupled on the connecting plate (15).
2. The diameter-changing wheel structure of claim 1, characterized in that a first power structure is connected to the mounting shaft (1), and a second power structure is connected to the regulating structure (7).
3. The diameter-changing wheel structure according to claim 1, wherein the first connecting rod (5) is L-shaped.
4. The diameter-changing wheel structure as claimed in claim 1, wherein the belt sheet (6) is a smooth belt sheet or a poly-wedge belt sheet or a toothed belt sheet.
5. The diameter-changing wheel structure according to claim 1, wherein the regulating structure (7) is a sprocket, a pulley or a lug (18); the belt pieces (6) are arc-shaped belt pieces.
6. A continuously variable transmission, comprising two diameter-changing wheel structures according to any one of claims 1 to 5, wherein the first connecting rods (5) of the two diameter-changing wheel structures face in opposite directions, the regulating structure (7) is in power connection through a transmission structure (16), and the transmission structure (16) is in power connection with a second power structure through a gear; one of the two reducing wheel structures is connected with a first power structure; the reducing structures of the two reducing wheel structures are in transmission connection through a transmission belt.
7. Continuously variable transmission according to claim 6, wherein the control structure (7) is a sprocket or a transmission wheel or a lug (18); the transmission structure (16) is a chain or a transmission belt or a second connecting rod (19) hinged with the connecting lug (18), the middle part of the second connecting rod (19) is hinged with a rocker (20), and the rocker (20) is connected with a second power structure; the first power structure is a motor, and the second power structure is a motor, a rotary cylinder or a linear cylinder (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121649067.XU CN216642998U (en) | 2021-07-20 | 2021-07-20 | Continuously variable transmission and variable diameter wheel structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121649067.XU CN216642998U (en) | 2021-07-20 | 2021-07-20 | Continuously variable transmission and variable diameter wheel structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216642998U true CN216642998U (en) | 2022-05-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121649067.XU Active CN216642998U (en) | 2021-07-20 | 2021-07-20 | Continuously variable transmission and variable diameter wheel structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216642998U (en) |
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2021
- 2021-07-20 CN CN202121649067.XU patent/CN216642998U/en active Active
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