CN109114184B - Stepless speed variator - Google Patents
Stepless speed variator Download PDFInfo
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- CN109114184B CN109114184B CN201711380939.5A CN201711380939A CN109114184B CN 109114184 B CN109114184 B CN 109114184B CN 201711380939 A CN201711380939 A CN 201711380939A CN 109114184 B CN109114184 B CN 109114184B
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- friction plate
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- wheel
- pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
- F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
- F16H9/24—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using chains or toothed belts, belts in the form of links; Chains or belts specially adapted to such gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/30—Chain-wheels
- F16H55/303—Chain-wheels for round linked chains, i.e. hoisting chains with identical links
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmissions By Endless Flexible Members (AREA)
- Friction Gearing (AREA)
Abstract
The invention is a continuously variable transmission comprising: the box 60, a pair of initiative conical disks contains a fixed conical disk 33 and a removal conical disk 2, a pair of passive conical disks contains a fixed conical disk 33 and a removal conical disk 2, input shaft 42, output shaft 31, chain 34, and every pair of passive conical disk centre and every pair of initiative conical disk centre all have a set of coaster 3, and the quantity of a set of coaster 3 is how many to go, for example: 2, 3, 4, 5, 6, 7, 8, etc. Since the most successful continuously variable transmission in the past is a CVT continuously variable transmission which relies on conical discs and steel belts to transmit power, the limitations of the CVT continuously variable transmission limit the wide use of the continuously variable transmission, whereas the continuously variable transmission of the present invention relies on a fixed conical disc 33 and a movable conical disc 2 to transmit power from an input shaft 42 to an output shaft 31 via a chain 34.
Description
Technical Field
The invention belongs to the field of continuously variable transmissions.
Background
Since the most successful continuously variable transmission in the past is a CVT continuously variable transmission which transmits power by friction between a conical disk and a steel belt, the wide use of the continuously variable transmission is limited by the limitations of the continuously variable transmission. The continuously variable transmission of the invention transfers power by a pair of driving conical discs, a pair of driven conical discs, a chain and a chain wheel.
Disclosure of Invention
The invention aims to solve the problem that the prior CVT directly transfers power by friction.
The continuously variable transmission of the invention comprises: the box body 60 is a pair of driving conical disks matched with the input shaft 42, wherein the driving conical disks comprise a fixed conical disk 33 and a movable conical disk 2, the fixed conical disk 33 is fixedly connected with the input shaft 42 or integrated with the input shaft 42, and the movable conical disk 2 can slide relative to the input shaft 42 on the input shaft 42 and cannot rotate relative to the input shaft 42; the pair of driven conical disks matched with the output shaft 31 comprises a fixed conical disk 33 and a movable conical disk 2, the fixed conical disk 33 is fixedly connected with the output shaft 31 or integrated, and the movable conical disk 2 can slide relative to the output shaft 31 on the output shaft 31 and cannot rotate relative to the output shaft 31. A group of pulleys 3 are respectively arranged between each pair of passive conical disks and between each pair of active conical disks, and the number of the group of pulleys 3 is as follows: 2, 3, 4, 5, 6, 7, 8, etc.; each pulley 3 is provided with a conical disc track 14 on the pair of conical discs, and the pulley 3 can slide back and forth along the conical disc guide rail 14 along with the increase and decrease of the distance between the fixed conical disc 33 and the movable conical disc 2, so that the pulley 3 can approach and depart relative to the input shaft 42 or the output shaft 31; the pulley 3 is provided with a movable friction plate chain wheel 8, a fixed friction plate 10, a first movable friction plate 11, a central shaft 5, a fixed friction plate positioning shaft 46 and a pressurizing shaft 13; the fixed cone disc cantilever 20 and the fixed cone disc bracket 24 are fixedly connected with or integrated with the fixed cone disc 33; the second pressure hinge plate 22 is fixedly connected with or integrated with the pressure rod 25. One end of a pressure hinge plate I18 is hinged with the pressure plate 16 through a pressure plate pin shaft I17, and the other end of the pressure hinge plate I is hinged with a fixed conical disc cantilever 20 through a cantilever pin shaft 19; one end of a pressure hinge plate II 22 is hinged with the pressure plate 16 through a pressure plate pin shaft II 21, the other end of the pressure hinge plate II is hinged with a fixed conical disc support 24 through a fixed conical disc support pin shaft 23, one end of a pressure rod 25 is hinged with the fixed conical disc support 24 through the fixed conical disc support pin shaft 23, the other end of the pressure rod 25 is hinged with a wheel seat 29 through a pressure rod pin shaft 27, one end of the wheel seat 29 is matched with a wheel shaft 45, the wheel shaft 45 is arranged in a central shaft hole of the wheel 28, the wheel 28 rotates around the wheel shaft 45, and the wheel 28 rolls on the cam 30; the cam 30 is fixedly connected with the box body 60; the limiter 1 is matched with the movable conical disc 2 through the bearing 32, so that the movable conical disc 2 can only slide back and forth along the input shaft 42 or the output shaft 31, when the movable conical disc 2 rotates along with the input shaft 42 or the output shaft 31, the limiter 1 does not rotate along with the movable conical disc 2, the movable conical disc 2 is matched with the input shaft 42 or the output shaft 31 through a spline, and the movable conical disc 2 can only slide on the input shaft 42 or the output shaft 31 and cannot rotate relative to the input shaft 42 or the output shaft 31; the fixed cone disc 33 is fixedly connected with the input shaft 42 or the output shaft 31; the spring force of the compression spring 26 acts on the fixed cone disk cantilever 20 at one end and on the wheel seat 29 at the other end. When wheel 28 falls in zone a of cam 30: when the pulley is engaged with the area 47, the elastic force of the pressure spring 26 acts on the movable friction plate sprocket 8 through the wheel seat 29, the pressure rod 25, the pressure hinge plate II 22, the pressure plate 16 and the pressurizing shaft 13, the movable friction plate sprocket 88 compresses the fixed friction plate 10, the fixed friction plate 10 compresses the movable friction plate I11, a square hole at the center of the movable friction plate sprocket 8 and a square hole at the center of the movable friction plate I11 are matched with the square section shape line of the central shaft 5, a semicircular opening of the fixed friction plate 10 is matched with the fixed friction plate positioning shaft 46, and the pulley positioning shaft hole 57 is matched with the fixed friction plate positioning shaft 46. The fixed friction plate 10 is matched with the pulley 3 through the fixed friction plate positioning shaft 46, and the fixed friction plate 10 can only slide on the fixed friction plate positioning shaft 46 and cannot rotate; when the wheel 28 falls in zone c: in the separation area 50, the wheel 28 is jacked up by the cam 30, the elastic force of the pressure spring 26 is applied to the cam 30 through the wheel 28, the wheel 28 drives the driving wheel seat 29, the pressure rod 25, the pressure hinge plate II 22 and the pressure plate 16 to move simultaneously, the pressure plate 16 is separated from the pressurizing shaft 13, the movable friction plate chain wheel 8, the fixed friction plate 10 and the movable friction plate I11 are loosened, the pressing force of the movable friction plate chain wheel 8, the fixed friction plate 10 and the movable friction plate I11 disappears, and the movable friction plate I11 and the movable friction plate chain wheel 8 can move freely. The fixed cone disk 33 and the movable cone disk 2 support the chain 34 at a certain working pitch circle radius position. The speed regulation screw 43 rotates to drive the speed regulation screw nut 35 to move back and forth, the speed regulation lever 40 drives the stopper 1 and the movable conical disc 2 to move back and forth, and the speed regulation lever shaft 41 is fixed on the box body 60.
One end of the pressure spring 26 is abutted against the wheel seat 29 and acts on the pressure lever 25 through the wheel seat 29, namely, one end of the pressure spring 26 acts on the pressure lever 25, and the other end is abutted against the fixed cone disc cantilever 20, when the wheel 28 falls on the a area of the cam 30: engaging zone 47, compression spring 26 is extended; when wheel 28 falls in zone c of cam 30: in the disengagement zone 50, the wheel 28 is lifted by the cam 30 and the compression spring 26 is compressed.
The chain 34 is composed of a chain shaft 12, a chain shaft wheel 7, a chain sheet 9 and a chain side sheet 6.
A continuously variable transmission, comprising: case 60, input shaft 42, output shaft 31, fixed cone disk 33, removal cone disk 2, characterized by: the device comprises a pressure spring 26, a wheel 28 and a cam 30, wherein one end of the pressure spring 26 acts on a pressure rod 25, and the other end of the pressure spring is propped against the fixed conical disc cantilever 20; when the wheel 28 falls on the meshing area 47 of the cam 30, the pressure spring 26 extends, the elastic force of the pressure spring 26 acts on the movable friction plate chain wheel 8 through the wheel seat 29, the pressure rod 25, the pressure hinge plate II 22, the pressure plate 16 and the pressurizing shaft 13, the movable friction plate chain wheel 8 compresses the fixed friction plate 10, and the movable friction plate chain wheel 8, the fixed friction plate 10 and the pulley 3 are fixed together; when the wheel 28 falls on the separation area 50 of the cam 30, the wheel 28 is jacked up by the cam 30, the pressure spring 26 is shortened, the elastic force of the pressure spring 26 is exerted on the cam 30 through the wheel 28, the wheel 28 drives the wheel seat 29, the pressure rod 25, the second pressure hinge plate 22 and the pressure plate 16 to move simultaneously, the pressure plate 16 is separated from the pressurizing shaft 13, the fixed friction plate 10 and the movable friction plate sprocket 8 are loosened, the pressing force on the fixed friction plate 10 and the movable friction plate sprocket 8 disappears, and the movable friction plate sprocket 8 moves freely.
Further, when the pressurizing shaft 13 loosens the movable friction plate chain wheel 8, the movable friction plate chain wheel 8 is separated from the fixed friction plate 10, the movable friction plate chain wheel 8 freely moves, and the chain 34 is freely lapped with the movable friction plate chain wheel 8; when the wheel 28 falls on the meshing area 47 of the cam 30, the pressurizing shaft 13 presses the movable friction plate sprocket 8 and the fixed friction plate 10, the movable friction plate sprocket 8 and the fixed friction plate 10 are fixed with the pulley 3, the chain 34 transmits power to the fixed conical disc 33 and the movable conical disc 2 through the fixed movable friction plate sprocket 8, the fixed friction plate 10 and the pulley 3, the fixed conical disc 33 and the movable conical disc 2, and the power is transmitted from the input shaft 42 to the output shaft 31 through the chain 34.
Furthermore, a movable conical disc spring 61 is arranged behind the movable conical disc 2 on the output shaft 31, pressure is applied to the movable conical disc 2 for speed regulation, one end of the movable conical disc spring 61 abuts against the movable conical disc 2, the other end of the movable conical disc spring abuts against a movable conical disc spring base 62, the movable conical disc spring base 62 is fixed on the output shaft 31, and the movable conical disc spring 61 pushes the movable conical disc 2 to compress the chain 34.
Furthermore, a movable conical disc spring 61 is arranged behind the movable conical disc 2 on the input shaft 42, pressure is applied to the movable conical disc 2 for speed regulation, one end of the movable conical disc spring 61 abuts against the movable conical disc 2, the other end of the movable conical disc spring abuts against a movable conical disc spring base 62, the movable conical disc spring base 62 is fixed on the input shaft 42, and the movable conical disc spring 61 pushes the movable conical disc 2 to compress the chain 34.
Furthermore, the pulley slide rail 4 is provided with a ball 59 and a back ball 51, and half of the ball 59 and the back ball 51 are arranged in the semicircular groove of the pulley slide rail 4, and the other half of the ball 59 and the back ball 51 are arranged in the semicircular groove of the conical disc guide rail 14 to play a role of a ball sliding bearing.
Further, the chain 34 and the movable friction plate sprocket 8 are in free lap joint, after the movable friction plate sprocket 8 compresses the fixed friction plate 10, the movable friction plate sprocket 8 is meshed with the chain 34 to transmit power, and the movable friction plate sprocket 8 is a sprocket meshed with the chain 34.
The special case one: in the tackle 3, only the movable friction plate sprocket 8 and the fixed friction plate 10 are arranged at intervals, and the movable friction plate I11 is not arranged.
The special case II: the fixed friction plate 10 extends 2 ears to match with the fixed friction plate positioning shaft 46.
The special case III: the speed regulating nut 35 and the limiter 1 are not on the same vertical line.
The fourth special case: a movable conical disc spring 61 is arranged behind the movable conical disc 2 on the output shaft 31, pressure is applied to the movable conical disc 2 for speed regulation, one end of the movable conical disc spring 61 abuts against the movable conical disc 2, the other end of the movable conical disc spring abuts against a movable conical disc spring base 62, and the movable conical disc spring base 62 is fixed on the output shaft 31; or a movable conical disc spring 61 is arranged behind the movable conical disc 2 on the input shaft 42, pressure is applied to the movable conical disc 2 for speed regulation, one end of the movable conical disc spring 61 abuts against the movable conical disc 2, the other end of the movable conical disc spring abuts against the movable conical disc spring base 62, and the movable conical disc spring base 62 is fixed on the input shaft 42. The moving conical disk spring 61 pushes the moving conical disk 2 to press the chain 34.
The special case five: the pulley slide rail 4 is provided with a ball 59 and a back ball 51, the ball 59 and the back ball 51 are half in the semicircular groove of the pulley slide rail 4, the other half is in the semicircular groove of the conical disc guide rail 14, the ball 59 and the back ball 51 are used as ball sliding bearings, and meanwhile, the ball 59 and the back ball 51 are used as return balls.
The working principle of the stepless speed changer
1. The power transmission working process comprises the following steps:
power enters the transmission from input shaft 42, and in zone a: on the pulley 3 in the meshing area 47, the elastic force of the pressure spring 26 presses the movable friction plate sprocket 8 and the fixed friction plate 10 onto the pulley 3, that is, the movable friction plate sprocket 8 is respectively fixed on a pair of driving conical disks and a pair of driven conical disks through the pulley 3, that is, the chain 34 is respectively meshed with the movable friction plate sprocket 8 of the pair of driving conical disks and the movable friction plate sprocket 8 of the pair of driven conical disks, the input shaft 42 drives the pair of driving conical disks to rotate, the pair of driving conical disks drives the pair of driven conical disks to rotate through the movable friction plate sprocket 8 on the pair of driving conical disks, the chain 34 and the movable friction plate sprocket 8 on the pair of driven conical disks, and then the output shaft 31 is driven to rotate to output power.
2. The speed regulation process comprises the following steps: the speed regulation screw 43 rotates to drive the speed regulation lever 40 to swing, the speed regulation lever 40 drives the stopper 1 to move back and forth, the stopper 1 drives the movable conical disc 2 to move back and forth, the pulley 3 drives the movable friction plate chain wheel 8 to slide back and forth along the conical disc guide rail 14, the working pitch circle radius changes on a pair of driving conical discs and a pair of driven conical discs of the chain 34 matched with the movable friction plate chain wheel 8 are caused, the rotating speed ratio of the input shaft 42 and the output shaft 31 is changed, the speed ratio change of the transmission is realized, and the speed regulation of the transmission is realized.
3. The movable friction plate chain wheel 8 is pressed on the pulley 3 and integrated with the pulley 3 into a whole in the working process:
(1) when wheel 28 falls in zone a of cam 30: in the meshing area 47, the movable friction plate sprocket 8, the fixed friction plate 10, the first movable friction plate 11 and the pulley 3 are pressed into a whole under the elastic force of the pressure spring 26, and the movable friction plate sprocket 8 is meshed with the chain 34 to transmit power.
(2) When wheel 28 falls in region b of cam 30: when the friction plate is separating from the gear 49, the wheel 28 is jacked up by the cam 30, the elastic force of the pressure spring 26 is applied to the cam 30 through the wheel 28, the wheel 28 drives the wheel seat 29, the pressure rod 25, the pressure hinge plate II 22 and the pressure plate 16 to move simultaneously, the pressure plate 16 is separated from the pressure shaft 13, the fixed friction plate 10, the movable friction plate I11 and the movable friction plate sprocket 8 are loosened, the pressing force on the fixed friction plate 10, the movable friction plate I11 and the movable friction plate (sprocket) 8 disappears, and the movable friction plate I11 and the movable friction plate sprocket 8 can rotate freely.
(3) When the wheel 28 falls in zone c: when the first movable friction plate 11 and the movable friction plate chain wheel 8 are not pressed tightly in the separation area 50, the first movable friction plate can rotate freely;
(4) when wheel 28 falls in zone d of cam 30: when the pulley is in the meshing area 48, the chain 34 and the movable friction plate sprocket 8 are in free lap joint, the elastic force of the pressure spring 26 acts on the movable friction plate sprocket 8 through the wheel seat 29, the pressure rod 25, the pressure hinge plate II 22, the pressure plate 16 and the pressure shaft 13, the movable friction plate sprocket 8 compresses the fixed friction plate 10, the fixed friction plate 10 compresses the movable friction plate I11, the movable friction plate sprocket 8, the fixed friction plate 10, the movable friction plate I11 and the pulley 3 are integrated, the movable friction plate sprocket 8 is meshed with the chain 34 to transmit power, namely, after the movable friction plate sprocket 8 compresses the fixed friction plate 10, the movable friction plate sprocket 8 is meshed with the chain 34 to transmit power. The active friction plate sprocket 8 is a sprocket that can engage with the chain 34. The square hole in the center of the movable friction plate chain wheel 8 and the square hole in the center of the first movable friction plate 11 are matched with the square section shape line of the central shaft 5, the semicircular notch of the fixed friction plate 10 is matched with the fixed friction plate positioning shaft 46, the pulley positioning shaft hole 57 is matched with the fixed friction plate positioning shaft 46, the fixed friction plate 10 is matched with the pulley 3 through the fixed friction plate positioning shaft 46, and the fixed friction plate 10 can only slide on the fixed friction plate positioning shaft 46 and cannot rotate.
4. In the motion principle of the special case one, when the wheel 28 falls in the area a of the cam 30: when the friction area 47 is engaged, the elastic force of the pressure spring 26 acts on the movable friction plate sprocket 8 through the wheel seat 29, the pressure rod 25, the pressure hinge plate II 22, the pressure plate 16 and the pressurizing shaft 13, the movable friction plate sprocket 8 compresses the fixed friction plate 10, the square hole in the center of the movable friction plate sprocket 8 is matched with the square section of the central shaft 5 in a linear mode, the semicircular notch of the fixed friction plate 10 is matched with the fixed friction plate positioning shaft 46, the pulley positioning shaft hole 57 is matched with the fixed friction plate positioning shaft 46, the fixed friction plate 10 is matched with the pulley 3 through the fixed friction plate positioning shaft 46, and the fixed friction plate 10 can only slide on the fixed friction plate positioning shaft 46 and cannot rotate; when the wheel 28 falls in zone c: in the separation area 50, the wheel 28 is jacked up by the cam 30, the elastic force of the pressure spring 26 is applied to the cam 30 through the wheel 28, the wheel 28 drives the wheel seat 29, the pressure rod 25, the second pressure hinge plate 22 and the pressure plate 16 to move simultaneously, the pressure plate 16 is separated from the pressurizing shaft 13, the fixed friction plate 10 and the movable friction plate sprocket 8 are loosened, and the movable friction plate sprocket 8 can rotate freely and is in lap joint with the chain 34 freely.
When the pressurizing shaft 13 compresses the movable friction plate chain wheel 8 and the fixed friction plate 10, the movable friction plate chain wheel 8, the fixed friction plate 10, the fixed friction plate positioning shaft 46 and the pulley 3 are fixed together; when the pressurizing shaft 13 loosens the movable friction plate sprocket 8 and the fixed friction plate 10, the movable friction plate sprocket 8 is separated from the fixed friction plate 10, and the movable friction plate sprocket 8 can rotate freely. The chain wheel 7 on the chain 34 can freely overlap the upper movable friction plate sprocket 8. When wheel 28 falls in zone a of cam 30: when the chain 34 is engaged with the movable friction plate sprocket 8 in the engagement area 47, the chain 34 can transmit power to the fixed conical disk 33 and the movable conical disk 2 through the movable friction plate sprocket 8, the fixed friction plate 10, the pulley 3, the fixed conical disk 33 and the movable conical disk 2, and the power is transmitted from the input shaft 42 to the output shaft 31 through the chain 34.
Due to the adoption of the structure of the invention, the continuously variable transmission has the following beneficial effects:
1. the power and torque of the power transmission are large.
2. The power loss is small.
3. The mechanical stepless speed change is realized.
Drawings
The following description refers to the accompanying drawings:
FIG. 1 is a structural view of the continuously variable transmission, shown in an overrunning condition;
FIG. 2 is a structural view of the continuously variable transmission in a decelerated state;
FIG. 3 is a view showing the structure of the continuously variable transmission in a decelerating state, in which the movable conical disks 2 of a pair of driven conical disks have a movable conical disk spring 61 for speed regulation;
fig. 4 is a front structural view of the continuously variable transmission, with a tensioner 54;
fig. 5 is a front structural view of the continuously variable transmission without the tension roller 54;
fig. 6 is a structural view of the movable cone 2, the fixed cone 33, and the output shaft 31 in this type of continuously variable transmission;
FIG. 7 is a block diagram of the fixed friction plate positioning shaft 46;
fig. 8 is a structural view of the trolley 3;
FIG. 9 is a front view of the chain edge piece 6;
FIG. 10 is a right side view of FIG. 9;
FIG. 11 is a left side view of FIG. 8;
fig. 12 is a structural view of the pressurizing shaft 13;
FIG. 13 is a left side view of FIG. 12;
FIG. 14 is a schematic view of a carriage track 4 with ball tracks thereon in a particular example five;
fig. 15 is a structural view of the trolley rail 4;
fig. 16 is a structural view showing the positional relationship of the pulley 3, the chain 34, the movable friction plate sprocket 8, the fixed friction plates 10, the first movable friction plates 11, and the fixed friction plate positioning shaft 46;
fig. 17 is a structural view showing the positional relationship of the fixed friction plate positioning shaft 46, the center shaft 5 and the movable friction plate sprocket 8;
fig. 18 is a structural view showing a positional relationship of the fixed friction plate 10, the center shaft 5, and the fixed friction plate positioning shaft 46;
FIG. 19 is a structural view showing a positional relationship among the first movable friction plate 11, the center shaft 5 and the fixed friction plate positioning shaft 46;
FIG. 20 is a structural view showing a positional relationship among the pulley 3, the movable friction plate sprocket 8, the fixed friction plates 10, the center shaft 5, the first movable friction plates 11, and the fixed friction plate positioning shaft 46 in the second specific example;
FIG. 21 is a structural view showing a positional relationship among the center shaft 5, the movable plate sprocket 8 and the fixed plate positioning shaft 46 in the second specific example;
FIG. 22 is a structural view showing a positional relationship among the center shaft 5, the fixed friction plates 10, the carrier 3, and the fixed friction plate positioning shaft 46 in the second specific example;
FIG. 23 is a structural view showing a positional relationship among the first movable friction plate 11, the center shaft 5, and the fixed friction plate positioning shaft 46 in the second specific example;
fig. 24 is a view of the cam 30 and wheel 28 with the wheel 28 in position in region d of the cam 30: a positive engagement area 48;
fig. 25 is a view of the cam 30 and wheel 28, with the wheel 28 in position in zone a of the cam 30: an engagement area 47;
FIG. 26 is a special case structure diagram;
FIG. 27 is a view of the construction of the speed control lever 40, the speed control lever fork slide 36, the speed control nut pin 37, and the stopper pin 63;
FIG. 28 is a right side view of FIG. 27;
FIG. 29 is a structural view of a third specific example, in which a speed control lever 40, a speed control lever fork slide 36, a speed control nut pin 37 and a stopper pin 63 are arranged;
FIG. 30 is a right side view of FIG. 29;
fig. 31 is a structural view of the chain 34;
FIG. 32 is an enlarged view of detail one 64 of FIG. 1;
FIG. 33 is an enlarged view of detail II 65 of FIG. 1;
FIG. 34 is an enlarged view of detail one 66 of FIG. 2;
FIG. 35 is an enlarged view of detail two 67 of FIG. 2;
FIG. 36 is an enlarged view of detail one 68 of FIG. 3;
FIG. 37 is an enlarged view of detail two 69 of FIG. 3;
FIG. 38 is an enlarged view of the detail view 70 of FIG. 26;
in each figure: a stopper 1; moving the conical disc 2; a pulley 3; a pulley slide rail 4; a central shaft 5; a chain edge piece 6; a chain sheave 7; a movable friction plate sprocket 8; a chain sheet 9; fixing the friction plate 10; a first movable friction plate 11; a chain shaft 12; a pressurizing shaft 13; a cone pulley guide 14; a conical disk pressurizing shaft groove 15; a pressure sheet 16; a pressure plate pin shaft I17; a first pressure hinge plate 18; a cantilever pin 19; a fixed cone cantilever 20; a second pressure plate pin shaft 21; a second pressure hinge plate 22; fixing a conical disc support pin shaft 23; a fixed cone disc support 24; a pressure lever 25; a pressure spring 26; a press rod pin shaft 27; wheels 28; a wheel seat 29; a cam 30; an output shaft 31; a bearing 32; a fixed cone 33; a chain 34; a speed regulating nut 35; a speed lever fork slide 36; a speed regulation nut pin 37; a speed control lever fork 38; indicates the interval range 39; a speed adjusting lever 40; a speed regulation lever shaft 41; an input shaft 42; a speed-adjusting lead screw 43; speed regulation screw rotation direction 44; a wheel axle 45; a fixed friction plate positioning shaft 46; an engagement area 47; a positive engagement area 48; is separating zone 49; a separation zone 50; back balls 51; cone rotation direction 52; a tension wheel shaft 53; a tension pulley 54; a stopper slide key 55; a pressurizing shaft hole 56; a pulley positioning shaft hole 57; the speed lever shaft hole 58; a ball 59; a case 60; moving the conical disk spring 61; a moving conical disk spring mount 62; a stopper pin 63; FIG. 32 is a partial view 64 of FIG. 1; FIG. 33 is a partial view 65 of FIG. 1; FIG. 34 is a partial view 66 of FIG. 2; FIG. 35 is a fragmentary view 67 of FIG. 2; FIG. 36 is a partial view 68 of FIG. 3; FIG. 37 is a partial view 69 of FIG. 3; fig. 38 is a partial view 70 of fig. 26.
Detailed Description
As can be seen in fig. 1, 2, 3, 4, 5, 6, the continuously variable transmission of the present invention comprises: the box body 60 is a pair of driving conical disks matched with the input shaft 42, wherein the driving conical disks comprise a fixed conical disk 33 and a movable conical disk 2, the fixed conical disk 33 is fixedly connected with the input shaft 42 or integrated with the input shaft 42, and the movable conical disk 2 can slide on the input shaft 42 equivalent to the input shaft 42 and cannot rotate relative to the input shaft 42; the pair of driven conical disks matched with the output shaft 31 comprises a fixed conical disk 33 and a movable conical disk 2, the fixed conical disk 33 is fixedly connected with the output shaft 31 or integrated, and the movable conical disk 2 can slide relative to the output shaft 31 on the output shaft 31 and cannot rotate relative to the output shaft 31. A group of pulleys 3 are arranged between each pair of driven conical disks and between each pair of driving conical disks, and the number of the group of pulleys 3 is as follows: 2, 3, 4, 5, 6, 7, 8, etc.; each pulley 3 is provided with a conical disc track 14 on the pair of conical discs, and the pulley 3 can slide back and forth along the conical disc guide rail 14 along with the increase and decrease of the distance between the fixed conical disc 33 and the movable conical disc 2, so that the pulley 3 can approach and depart relative to the input shaft 42 or the output shaft 31; the pulley 3 is provided with a movable friction plate chain wheel 8, a fixed friction plate 10, a first movable friction plate 11, a central shaft 5, a fixed friction plate positioning shaft 46 and a pressurizing shaft 13; the fixed cone disc cantilever 20 and the fixed cone disc bracket 24 are fixedly connected with or integrated with the fixed cone disc 33; the second pressure hinge plate 22 is fixedly connected with or integrated with the pressure rod 25. One end of a pressure hinge plate I18 is hinged with the pressure plate 16 through a pressure plate pin shaft I17, and the other end of the pressure hinge plate I is hinged with a fixed conical disc cantilever 20 through a cantilever pin shaft 19; one end of the second pressure hinge plate 22 is hinged with the pressure plate 16 through a second pressure plate pin shaft 21, the other end of the second pressure hinge plate is hinged with a fixed conical disc support 24 through a fixed conical disc support pin shaft 23, and the pressure rod 25, one end of the wheel seat 29 is hinged with a fixed conical disc bracket 24 through a fixed conical disc bracket pin shaft 23, the other end of the wheel seat is hinged with a wheel seat 29 through a pressure lever pin shaft 27, one end of the wheel seat 29 is matched with a wheel shaft 45, the wheel shaft 45 is arranged in a central shaft hole of the wheel 28, the wheel 28 rotates around the wheel shaft 45, and the wheel 28 rolls on the cam 30; the cam 30 is fixedly connected with the box body 60; the limiter 1 is matched with the movable conical disc 2 through the bearing 32, so that the movable conical disc 2 can only slide back and forth along the input shaft 42 or the output shaft 31, when the movable conical disc 2 rotates along with the input shaft 42 or the output shaft 31, the limiter 1 does not rotate along with the movable conical disc 2, the movable conical disc 2 is matched with the input shaft 42 or the output shaft 31 through a spline, and the movable conical disc 2 can only slide on the input shaft 42 or the output shaft 31 and cannot rotate relative to the input shaft 42 or the output shaft 31; the fixed cone disc 33 is fixedly connected with the input shaft 42 or the output shaft 31; the spring force of the compression spring 26 acts on the fixed cone disk cantilever 20 at one end and on the wheel seat 29 at the other end. When wheel 28 falls on a: when the pulley is engaged with the area 47, the elastic force of the pressure spring 26 acts on the movable friction plate sprocket 8 through the wheel seat 29, the pressure rod 25, the pressure hinge plate II 22, the pressure plate 16 and the pressure shaft 13, the movable friction plate sprocket 8 compresses the fixed friction plate 10, the fixed friction plate 10 compresses the movable friction plate I11, a square hole at the center of the movable friction plate sprocket 8 and a square hole at the center of the movable friction plate I11 are matched with the square section shape line of the central shaft 5, a semicircular opening of the fixed friction plate 10 is matched with the fixed friction plate positioning shaft 46, and the pulley positioning shaft hole 57 is matched with the fixed friction plate positioning shaft 46. The fixed friction plate 10 is matched with the pulley 3 through the fixed friction plate positioning shaft 46, and the fixed friction plate 10 can only slide on the fixed friction plate positioning shaft 46 and cannot rotate; when the wheel 28 is rotatedIn thatFalling in zone c: in the separation area 50, the wheel 28 is jacked up by the cam 30, the elastic force of the pressure spring 26 is applied to the cam 30 through the wheel 28, the wheel 28 drives the wheel seat 29, the pressure rod 25, the pressure hinge plate II 22 and the pressure plate 16 to move simultaneously, the pressure plate 16 is separated from the pressurizing shaft 13, the movable friction plate chain wheel 8, the fixed friction plate 10 and the movable friction plate I11 are loosened, the pressing force of the movable friction plate chain wheel 8, the fixed friction plate 10 and the movable friction plate I11 disappears, and the movable friction plate I11 and the movable friction plate chain wheel 8 can move freely. The fixed cone disk 33 and the movable cone disk 2 hold the chain 34At a certain working pitch circle radius position. The speed regulation screw 43 rotates to drive the speed regulation screw nut 35 to move back and forth, the speed regulation lever 40 drives the stopper 1 and the movable conical disc 2 to move back and forth, and the speed regulation lever shaft 41 is fixed on the box body 60.
One end of the pressure spring 26 is abutted against the wheel seat 29 and acts on the pressure lever 25 through the wheel seat 29, namely, one end of the pressure spring 26 acts on the pressure lever 25, and the other end is abutted against the fixed cone disc cantilever 20, when the wheel 28 falls on the a area of the cam 30: engaging zone 47, compression spring 26 is extended; when wheel 28 falls in zone c of cam 30: in the disengagement zone 50, the wheel 28 is lifted by the cam 30 and the compression spring 26 is compressed.
The chain 34 is composed of a chain shaft 12, a chain shaft wheel 7, a chain sheet 9 and a chain side sheet 6.
The working principle of the stepless speed changer
1. The power transmission working process comprises the following steps:
power enters the transmission from input shaft 42, and in zone a: on the pulley 3 in the meshing area 47, the elastic force of the pressure spring 26 presses the movable friction plate sprocket 8 and the fixed friction plate 10 against the pulley 3, that is, the movable friction plate sprocket 8 is fixed on a pair of driving conical disks and a pair of driven conical disks, that is, the chain 34 is meshed with the movable friction plate sprocket 8 of the pair of driving conical disks and the movable friction plate sprocket 8 of the pair of driven conical disks, respectively, the input shaft 42 drives the pair of driving conical disks to rotate, the pair of driving conical disks drives the pair of driven conical disks to rotate through the movable friction plate sprocket 8 on the pair of driving conical disks, the chain 34 and the movable friction plate sprocket 8 on the pair of driven conical disks, and then drives the output shaft 31 to rotate, so as to output power.
2. The speed regulation process comprises the following steps: the speed regulation screw 43 rotates to drive the speed regulation lever 40 to swing, the speed regulation lever 40 drives the stopper 1 to move back and forth, the stopper 1 drives the movable conical disc 2 to move back and forth, the pulley 3 drives the movable friction plate chain wheel 8 to slide back and forth along the conical disc guide rail 14, the working pitch circle radius changes on a pair of driving conical discs and a pair of driven conical discs of the chain 34 matched with the movable friction plate chain wheel 8 are caused, the rotating speed ratio of the input shaft 42 and the output shaft 31 is changed, the speed ratio change of the transmission is realized, and the speed regulation of the transmission is realized.
3. The movable friction plate chain wheel 8 is pressed on the pulley 3 and integrated with the pulley 3 into a whole in the working process:
(1) when wheel 28 falls in zone a of cam 30: in the meshing area 47, the movable friction plate sprocket 8, the fixed friction plate 10, the first movable friction plate 11 and the pulley 3 are pressed and integrated by the elastic force of the pressure spring 26, and the movable friction plate sprocket 8 meshes with the chain 34 to transmit power.
(2) When wheel 28 falls in region b of cam 30: when the friction plate is separating from the gear wheel 49, the wheel 28 is jacked up by the cam 30, the elastic force of the pressure spring 26 is applied to the cam 30 through the wheel 28, the wheel 28 drives the wheel seat 29, the pressure rod 25, the pressure hinge plate II 22 and the pressure plate 16 to move simultaneously, the pressure plate 16 is separated from the pressure shaft 13, the fixed friction plate 10, the movable friction plate I11 and the movable friction plate chain wheel 8 are loosened, the pressing force on the fixed friction plate 10, the movable friction plate I11 and the movable friction plate chain wheel 8 is eliminated, and the movable friction plate I11 and the movable friction plate chain wheel 8 can rotate freely.
(3) When the wheel 28 falls in zone c: when the first movable friction plate 11 and the movable friction plate chain wheel 8 are not pressed tightly in the separation area 50, the first movable friction plate can rotate freely;
(4) when wheel 28 falls in zone d of cam 30: when the pulley is engaged, the chain 34 and the movable friction plate sprocket 8 are in free lap joint, the elastic force of the pressure spring 26 acts on the movable friction plate sprocket 8 through the wheel seat 29, the pressure rod 25, the second pressure hinge plate 22, the pressure plate 16 and the pressure shaft 13, the movable friction plate sprocket 8 compresses the fixed friction plate 10, the fixed friction plate 10 compresses the movable friction plate 11, the movable friction plate sprocket 8, the fixed friction plate 10, the first movable friction plate 11 and the pulley 3 are integrated, the movable friction plate sprocket 8 is engaged with the chain 34 to transmit power, namely, after the movable friction plate sprocket 8 compresses the fixed friction plate 10, the movable friction plate sprocket 8 is engaged with the chain 34 to transmit power. The active friction plate sprocket 8 is a sprocket that can engage with the chain 34. The square hole in the center of the movable friction plate chain wheel 8 and the square hole in the center of the first movable friction plate 11 are matched with the square section shape line of the central shaft 5, the semicircular notch of the fixed friction plate 10 is matched with the fixed friction plate positioning shaft 46, the pulley positioning shaft hole 57 is matched with the fixed friction plate positioning shaft 46, the fixed friction plate 10 is matched with the pulley 3 through the fixed friction plate positioning shaft 46, and the fixed friction plate 10 can only slide on the fixed friction plate positioning shaft 46 and cannot rotate.
It can be seen in fig. 1 that on the output shaft 31, the distance between the pair of driven cones is the largest, and on the pair of driven cones, the diameter of the working pitch circle of the chain 34 is the smallest; the chain 34 has the largest diameter of the working pitch circle on the pair of drive cones and the variator is the maximum overdrive ratio.
It can be seen in fig. 2 that the distance between the pair of passive cones is the smallest, and that the diameter of the working pitch circle of the chain 34 is the largest on the pair of passive cones; on a pair of drive cones, the chain 34 has the smallest working pitch diameter and the variator is at its maximum reduction ratio.
Fig. 3 is a structure of a specific example four, a moving conical disk spring 61 is arranged behind a moving conical disk 2 on an output shaft 31, pressure is applied to the moving conical disk 2 for speed regulation, one end of the moving conical disk spring 61 abuts against the moving conical disk 2, the other end abuts against a moving conical disk spring base 62, and the moving conical disk spring base 62 is fixed on the output shaft 31; or a movable conical disc spring 61 is arranged behind the movable conical disc 2 on the input shaft 42, pressure is applied to the movable conical disc 2 for speed regulation, one end of the movable conical disc spring 61 abuts against the movable conical disc 2, the other end of the movable conical disc spring abuts against the movable conical disc spring base 62, and the movable conical disc spring base 62 is fixed on the input shaft 42. The moving conical disk spring 61 pushes the moving conical disk 2 to press the conveyor chain 34.
In fig. 4, it can be seen that the tensioner 54 is pressed against the chain 34.
As can be seen in fig. 3 and 5, the chain 34 is compressed by the moving conical disk spring 61, and the tension pulley 54 is not used.
Fig. 6 shows a position diagram of the mobile cone disk 2, the fixed cone disk 33 and the output shaft 31.
In fig. 7, 16, 17, 18, 19, it can be seen that half of the fixed friction lining positioning shaft 46 (semi-circular) is in the tackle 3; the other half (semi-circle) of the fixed friction plate positioning shaft 46 is arranged in the fixed friction plate 10, so that the fixed friction plate 10 can only slide back and forth in the pulley 3 along the axial direction of the fixed friction plate positioning shaft 46, the fixed friction plate positioning shaft 46 is provided with a gap corresponding to the movable friction plate chain wheel 8, so that the movable friction plate chain wheel 8 does not touch the fixed friction plate positioning shaft 46 when moving, a square hole in the center of the movable friction plate chain wheel 8 and a square hole in the center of the movable friction plate I11 are matched with the square section of the central shaft 5, and the movable friction plate chain wheel 8 and the movable friction plate I11 can only rotate together with the central shaft 5 when no pressing force exists.
The positional relationship of the trolley 3 and the trolley rails 4 can be seen in fig. 8, 11, 15.
In fig. 14, it can be seen that in the fifth specific example, since the balls 59 and the back balls 51 are arranged on the pulley rail 4, the balls 59 and the back balls 51 are half in the pulley rail 4, and the other half is in the semicircular groove on the cone rail 14, which functions as a ball sliding bearing, and the balls 59 and the back balls 51 are return balls.
In fig. 20, 21, 22 and 23, in the second specific example, the fixed friction plate 10 extends out of 2 ears to be matched with the fixed friction plate positioning shaft 46. The movable friction plate sprocket 8 has a sufficient distance from the fixed friction plate positioning shaft 46, and even if there is no gap on the fixed friction plate positioning shaft 46, the movable friction plate sprocket 8 does not touch the fixed friction plate positioning shaft 46 during movement.
In fig. 24, the wheel 28 is lowered on the separation area 50 of the cam 30, the wheel 28 is lifted, and the movable friction plate sprocket 8, the fixed friction plate 10 and the movable friction plate one 11 can move freely;
in fig. 25, wheel 28 falls in zone a of cam 30: the engaging area 47, the wheel 28 is lowered, and the movable friction plate sprocket 8, the fixed friction plate 10, the movable friction plate one 11 and the pulley 3 are pressed together as a unit.
Fig. 26 is a specific example structure diagram in which the movable friction plate sprocket 8 and the fixed friction plate 10 are present at intervals in the sheave block 3, and the movable friction plate one 11 is omitted.
In a particular example, the motion principle of the particular example is that when the wheel 28 falls in the area a of the cam 30: when the friction area 47 is engaged, the elastic force of the pressure spring 26 acts on the movable friction plate sprocket 8 through the wheel seat 29, the pressure rod 25, the pressure hinge plate II 22, the pressure plate 16 and the pressurizing shaft 13, the movable friction plate sprocket 8 compresses the fixed friction plate 10, the square hole in the center of the movable friction plate sprocket 8 is matched with the square section of the central shaft 5 in a linear mode, the semicircular notch of the fixed friction plate 10 is matched with the fixed friction plate positioning shaft 46, the pulley positioning shaft hole 57 is matched with the fixed friction plate positioning shaft 46, the fixed friction plate 10 is matched with the pulley 3 through the fixed friction plate positioning shaft 46, and the fixed friction plate 10 can only slide on the fixed friction plate positioning shaft 46 and cannot rotate; when the wheel 28 falls in zone c: in the separation area 50, the wheel 28 is jacked up by the cam 30, the elastic force of the pressure spring 26 is applied to the cam 30 through the wheel 28, the wheel 28 drives the wheel seat 29, the pressure rod 25, the second pressure hinge plate 22 and the pressure plate 16 to move simultaneously, the pressure plate 16 is separated from the pressurizing shaft 13, the fixed friction plate 10 and the movable friction plate sprocket 8 are loosened, and the movable friction plate sprocket 8 can rotate freely and is in lap joint with the chain 34 freely.
When the pressurizing shaft 13 compresses the movable friction plate chain wheel 8 and the fixed friction plate 10, the movable friction plate chain wheel 8, the fixed friction plate 10, the fixed friction plate positioning shaft 46 and the pulley 3 are fixed together; when the pressurizing shaft 13 loosens the movable friction plate sprocket 8 and the fixed friction plate 10, the movable friction plate sprocket 8 is separated from the fixed friction plate 10, and the movable friction plate sprocket 8 can rotate freely. The chain wheel 7 on the chain 34 can freely overlap the upper movable friction plate sprocket 8. When wheel 28 falls in zone a of cam 30: when the chain 34 is engaged with the movable friction plate sprocket 8 in the engagement area 47, the chain 34 can transmit power to the fixed conical disk 33 and the movable conical disk 2 through the movable friction plate sprocket 8, the fixed friction plate 10, the pulley 3, the fixed conical disk 33 and the movable conical disk 2, and the power is transmitted from the input shaft 42 to the output shaft 31 through the chain 34.
In fig. 27, 28, the structure of the governor lever 40 is seen.
In fig. 29 and 30, in a third specific example, the structure diagrams of the speed control lever 40, the speed control lever fork slide block 36, the speed control nut pin 37 and the stopper pin 63;
fig. 12 and 13 are structural views of the pressing shaft 13, and one end of the pressing shaft 13 is provided with a groove which is matched with the pressure sheet 16.
Fig. 31 is a view showing the structure of the chain 34, and the chain 34 is composed of the chain shaft 12, the chain shaft pulley 7, the chain piece 9, and the chain side piece 6.
Claims (6)
1. A continuously variable transmission, comprising: box (60), input shaft (42), output shaft (31), fixed conical disk (33), removal conical disk (2), characterized by: the device is provided with a pressure spring (26), a wheel (28) and a cam (30), wherein one end of the pressure spring (26) acts on the pressure lever (25), and the other end of the pressure spring is propped against the fixed conical disc cantilever (20); when the wheel (28) falls on the meshing area (47) of the cam (30), the pressure spring (26) extends, the elastic force of the pressure spring (26) acts on the movable friction plate chain wheel (8) through the wheel seat (29), the pressure rod (25), the pressure hinge plate II (22), the pressure plate (16) and the pressure shaft (13), the movable friction plate chain wheel (8) compresses the fixed friction plate (10), and the movable friction plate chain wheel (8) and the fixed friction plate (10) are fixed with the pulley (3); when the wheel (28) falls on the separation area (50) of the cam (30), the wheel (28) is jacked up by the cam (30), the pressure spring (26) is pressed short, the elastic force of the pressure spring (26) is exerted on the cam (30) through the wheel (28), the wheel (28) drives the wheel seat (29), the pressure rod (25), the pressure hinge plate II (22) and the pressure plate (16) to move simultaneously, the pressure plate (16) is separated from the pressure shaft (13), the fixed friction plate (10) and the movable friction plate chain wheel (8) are loosened, the pressing force on the fixed friction plate (10) and the movable friction plate chain wheel (8) disappears, and the movable friction plate chain wheel (8) moves freely.
2. The continuously variable transmission according to claim 1, wherein when the pressing shaft (13) releases the movable friction plate sprocket (8), the movable friction plate sprocket (8) is disengaged from the fixed friction plate (10), the movable friction plate sprocket (8) is freely movable, and the chain (34) is freely overlapped with the movable friction plate sprocket (8); when the wheel (28) falls into the meshing area (47) of the cam (30), the pressing shaft (13) presses the movable friction plate chain wheel (8) and the fixed friction plate (10), the movable friction plate chain wheel (8) and the fixed friction plate (10) are fixed with the pulley (3), the chain (34) transmits power to the fixed conical disc (33) and the movable conical disc (2) through the fixed movable friction plate chain wheel (8), the fixed friction plate (10) and the pulley (3), and the fixed conical disc (33) and the movable conical disc (2) transmit the power to the output shaft (31) from the input shaft (42) through the chain (34).
3. The continuously variable transmission according to claim 2, characterized in that a moving conical disk spring (61) is arranged behind the moving conical disk (2) on the output shaft (31), pressure is applied to the moving conical disk (2) for speed regulation, one end of the moving conical disk spring (61) abuts against the moving conical disk (2), the other end abuts against a moving conical disk spring base (62), the moving conical disk spring base (62) is fixed on the output shaft (31), and the moving conical disk spring (61) pushes the moving conical disk (2) to press the chain (34).
4. The continuously variable transmission according to claim 2, characterized in that a moving conical disk spring (61) is arranged behind the moving conical disk (2) on the input shaft (42) and used for applying pressure to the moving conical disk (2) for speed regulation, one end of the moving conical disk spring (61) is abutted against the moving conical disk (2), the other end of the moving conical disk spring (61) is abutted against a moving conical disk spring base (62), the moving conical disk spring base (62) is fixed on the input shaft (42), and the moving conical disk spring (61) pushes the moving conical disk (2) to press the chain (34).
5. A continuously variable transmission as claimed in claim 2, characterized in that the carrier rail (4) is provided with balls (59) and back balls (51), and the balls (59) and the back balls (51) are arranged in half in the semicircular groove of the carrier rail (4) and in half in the semicircular groove of the cone pulley rail (14) to function as ball bearings.
6. The continuously variable transmission according to claim 1, wherein the chain (34) and the movable friction plate sprocket (8) are freely overlapped, after the movable friction plate sprocket (8) presses the fixed friction plate (10), the movable friction plate sprocket (8) is engaged with the chain (34) to transmit power, and the movable friction plate sprocket (8) is the sprocket engaged with the chain (34).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711380939.5A CN109114184B (en) | 2017-12-20 | 2017-12-20 | Stepless speed variator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711380939.5A CN109114184B (en) | 2017-12-20 | 2017-12-20 | Stepless speed variator |
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| CN109114184A CN109114184A (en) | 2019-01-01 |
| CN109114184B true CN109114184B (en) | 2020-06-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109114183B (en) | 2017-12-20 | 2019-11-08 | 北京博华圣源科技发展有限公司 | Chain-type stepless transmission |
| CN117066749B (en) * | 2023-10-16 | 2023-12-26 | 江苏江铭机电有限公司 | Automatic welding device for instrument shell |
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| US4167124A (en) * | 1977-04-01 | 1979-09-11 | Dso "Rodopa" | Variable-speed chain drive unit |
| JP2002250420A (en) * | 2001-02-26 | 2002-09-06 | Hitoshi Fujisawa | Continuously stepless variable speed change gear |
| WO2004040168A1 (en) * | 2002-10-31 | 2004-05-13 | Yugenkaisha Wanda Kikaku | Stepless speed change apparatus |
| CN2675957Y (en) * | 2003-12-25 | 2005-02-02 | 李钢 | Self locking metallic chain type non-stage transmission |
| CN104864048A (en) * | 2015-03-24 | 2015-08-26 | 袁廷华 | Continuously variable transmission with synchronized gears |
| CN107218364A (en) * | 2017-05-26 | 2017-09-29 | 北京工业大学 | A kind of method for suppressing the fluctuation of movable-tooth stepless speed transmission rotational speed and torque |
| CN107448569A (en) * | 2017-09-22 | 2017-12-08 | 陈学琴 | Adaptive oscillating tooth buncher |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4167124A (en) * | 1977-04-01 | 1979-09-11 | Dso "Rodopa" | Variable-speed chain drive unit |
| JP2002250420A (en) * | 2001-02-26 | 2002-09-06 | Hitoshi Fujisawa | Continuously stepless variable speed change gear |
| WO2004040168A1 (en) * | 2002-10-31 | 2004-05-13 | Yugenkaisha Wanda Kikaku | Stepless speed change apparatus |
| CN2675957Y (en) * | 2003-12-25 | 2005-02-02 | 李钢 | Self locking metallic chain type non-stage transmission |
| CN104864048A (en) * | 2015-03-24 | 2015-08-26 | 袁廷华 | Continuously variable transmission with synchronized gears |
| CN107218364A (en) * | 2017-05-26 | 2017-09-29 | 北京工业大学 | A kind of method for suppressing the fluctuation of movable-tooth stepless speed transmission rotational speed and torque |
| CN107448569A (en) * | 2017-09-22 | 2017-12-08 | 陈学琴 | Adaptive oscillating tooth buncher |
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