CN101067443A - Stepless speed changer - Google Patents
Stepless speed changer Download PDFInfo
- Publication number
- CN101067443A CN101067443A CN 200710011263 CN200710011263A CN101067443A CN 101067443 A CN101067443 A CN 101067443A CN 200710011263 CN200710011263 CN 200710011263 CN 200710011263 A CN200710011263 A CN 200710011263A CN 101067443 A CN101067443 A CN 101067443A
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- wheel
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- friction wheel
- planetary gear
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- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims description 49
- 230000033001 locomotion Effects 0.000 claims description 31
- 210000004907 gland Anatomy 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims 1
- 230000001276 controlling effect Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
A stepless transmission is made up of the pressure controlling device, the drive ratio controlling device, the output/input device and the planetary gear train device which has the function of the clutch and the stepless transmission. The power machine transfers the power to the taper central gear which generates the friction with the planetary gear train friction wheel to make it rotation and generate the friction with the separately fixed inner taper friction wheel to make the planetary revolution. It transfers the revolution to the output axis pan which outputs the power. The pressure controlling device controls the compress or apart of the separately fixed inner taper friction wheel to control if has the above two frictions. When no press, the drive ratio controlling device adjusts the planetary gear move along the planetary frame between the two frictions to change the effective drive diameter of the central wheel and the inner friction wheel to change the drive ratio.
Description
Affiliated technical field
The present invention is a kind of general transmission device, and it can realize the continuous variation of output shaft rotating speed within the specific limits under the constant situation of input speed, and it also can cut off and realize moving and the transmission of power simultaneously.
Background technique
At present, widely used mechanical continuously-variable transmission is to adopt driving belt and the variable driven wheel of the working diameter transferring power that matches.Reach within the specific limits stepless change by the contact diameter that changes driving wheel or follower and driving belt.Another is to realize stepless change by the friction wheel mode, but its shortcoming is can't realize moving and the cut-out of power.
Summary of the invention
The present invention solves the method that stepless change adopts: motion passes to the taper sun gear with power by power engine, taper sun gear and planetary gear train friction wheel produce friction, make the rotation of planetary gear train friction wheel, utilize the rotation of planetary gear train friction wheel, the planetary gear train friction wheel is contacted with separable fixedly inner conical friction wheel produce friction, make planetary wheel mechanism produce revolution, by planet carrier the revolution of planetary wheel mechanism is passed to the output reel, will move and power is outwards exported by the output reel.
In this process, control separable fixedly inner conical friction wheel by pressure control mechanism, it compressed or separate, with this directly load or removal to the pressure of planetary gear train friction wheel, load indirectly or removal to the pressure of taper sun gear.When removal pressure, by drive ratio controlling device be adjusted in top two the friction between planetary gear train, along the planet carrier to-and-fro motion, thereby change taper sun gear and the effective drive diameter of separable fixedly inner conical friction wheel, so just changed velocity ratio, because the motion of planetary gear train has continuity, so the change of velocity ratio also is a continually varying, has realized stepless change within the specific limits.
The invention has the beneficial effects as follows: regulate the allowable load that speed changer can transmit, cut-out and realization realize the stepless change of velocity ratio within the specific limits to the transmission of motion and power, and can or dwindle this scope according to the actual conditions increasing.The present invention can realize the function of clutch and speed changer.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing and embodiment.
Fig. 1 transmission principle figure; Fig. 2 stepless speed variator erection drawing;
Fig. 3 drive ratio controlling device (IV)
(a) the drive ratio controlling device schematic diagram 1; (b) the drive ratio controlling device schematic diagram 2; (c) drive ratio controlling device sterogram; (d) control wheel mechanism entity (VI) explosive view;
Fig. 4 pressure control mechanism (III) is the pressure control mechanism schematic diagram (a); (b) pressure control mechanism sterogram;
Fig. 5 output mechanism (V) is the output mechanism schematic diagram (a); (b) output mechanism sterogram; (c) separable fixedly inner conical friction wheel; (d) left pressure wedge dish;
Fig. 6 planetary wheel mechanism (II) is the planetary wheel mechanism schematic diagram (a); (b) planetary wheel mechanism sterogram;
Fig. 7 input mechanism (I) is the input mechanism schematic diagram (a); (b) input mechanism longitudinal section;
Fig. 8 velocity ratio calculating chart.
Sequence number explanation among the figure:
The I-input mechanism; The II-planetary wheel mechanism; The III-pressure control mechanism; The IV-drive ratio controlling device; The V-output mechanism; VI-controls wheel mechanism.
1-taper sun gear; 2-planetary gear train friction wheel; The separable fixedly inner conical of 3-friction wheel; The 4-planet carrier; 5-exports reel; The 6-leading screw; 7-bevel gear z11; 8-bevel gear z12; 9-bevel gear z21; 10-bevel gear z22; 11-spur gear z31; 12-tooth bar z32; The right pressure wedge of 13-dish; 14-left side pressure wedge dish; The 15-spring seat; 16-left side case lid; But the 17-transmitted load is regulated bolt; The 18-pull bar; The 19-control pull rod; The 20-spring; 21-fixed block groove; The 22-sliding pair; 23-sliding pair left side gland; 24-control wheel guide rail; 25-planetary gear train left bearing; The 26-casing; 27-axle z2; 28-control wheel supporting disk; 29-controls wheel; The 30-gear bearing support; 31-axle sleeve z3; 32-axle z3; 33-axle sleeve z2; The 34-bearing outer seat; The 35-thrust-bearing; The 36-bearing inner seat; 37-output terminal bearing inner seat; The 38-thrust-bearing; 39-output terminal bearing outer seat; The 40-bolt; 41-friction wheel left side gland; 42-control wheel bearing left side gland; The embedded left bearing of 43-control wheel; 44-control wheel guide rail hole; The embedded right bearing of 45-control wheel; The right gland of 46-control wheel bearing; The 47-Joystick; The right case lid of 48-; 49-is than the control bearing.
Embodiment
In Fig. 1, control separable fixedly inner conical friction wheel (3) by pressure control mechanism (III), it is compressed or separate, with this load indirectly or removal to the pressure of taper sun gear (1), make taper sun gear (1) and planetary gear train friction wheel (2) produce friction, make planetary gear train friction wheel (2) rotation, simultaneously, it also directly load or the separable fixedly inner conical of removal friction wheel (3) to the pressure of planetary gear train friction wheel (2), and planetary gear train friction wheel (2) contacted with separable fixedly inner conical friction wheel (3) produce friction, make planetary wheel mechanism (II) produce revolution, by planet carrier (4) revolution of planetary gear train (II) is passed to output reel (5), will move and power is outwards exported by output reel (5).When removal pressure, by drive ratio controlling device (IV) be adjusted in taper sun gear (1) and two the friction between planetary gear train (II), along planet carrier (4) to-and-fro motion, thereby change sun gear (1) and the effective drive diameter of interior friction wheel (3), so just changed velocity ratio.
Among Fig. 8, planetary gear train center line OP, separable fixedly inner conical friction wheel (3) are at the inner outline MN in longitudinal section, friction point place, and taper sun gear (1) is at the outer contour KL in longitudinal section, friction point place, three line parallels.
Here, the quantity that can change planetary wheel mechanism, drive ratio controlling device changes the size of transmitted load.Concrete enforcement of the present invention is example with three groups of planetary wheel mechanisms, drive ratio controlling device, and is according to circumstances the amount doesn't matter.Fig. 2 is concrete embodiment erection drawing.
The principle explanation of Fig. 3 (a) drive ratio controlling device:
The control wheel mechanism is handled tooth bar z32 (12) horizontal reciprocating movement, by being positioned on the spur gear z31 (11) on the gear bearing support, straight line motion is changed into rotatablely moving of spur gear z31 (11), spur gear z31 (11) is coaxial with bevel gear z22 (10) and be connected with axle key, spur gear z31 (11) drives the rotation of bevel gear z22 (10) like this, bevel gear z22 (10) and bevel gear z21 (9) are the orthogonal transmission, bevel gear z21 (9) has been passed in motion, bevel gear z21 (9) is coaxial with bevel gear z12 (8) and be connected with axle key, bevel gear z12 (8) has been passed in motion, bevel gear z12 (8) and bevel gear z11 (7) oblique transmission, bevel gear z11 (7) has been passed in motion, bevel gear z11 (7) is connected with leading screw (6) key, leading screw (6) has been passed in motion, and leading screw (6) rotates, and the sliding pair of planetary gear train has screw thread in (22), can produce self-locking with leading screw (6) and constitute the slip revolute, with rotation become planetary wheel mechanism along leading screw (6) but to-and-fro motion and self-locking.
Instantiation in conjunction with Fig. 3 illustrates.Joystick (47) is connected with the control right gland of wheel bearing (46), control wheel bearing left side gland (42) is threaded with the control right gland of bearing (46), control wheel embedded left bearing (43) is equipped with in control wheel (29) left side, control wheel right bearing (45) is equipped with on the right side, left bearing (43) and right bearing (45) are threaded with the control right gland of bearing (46) to compress by control wheel shaft left side gland (42) and are contained on the control wheel (29), and control wheel (29) is connected by bolt with tooth bar (12).Be connected with the control right gland of wheel bearing (46) by Joystick (47), the horizontal motion of Joystick (47) is passed to the horizontal motion of tooth bar (12) by above connection, by spur gear (11), bevel gear (10), (9), (8), (7) horizontal motion with tooth bar (12) becomes rotatablely moving of bevel gear (7), upward leading screw (6) is affixed with being installed in planet carrier (4) for bevel gear (7), make the leading screw rotation, by the slip revolute that leading screw (6) and the sliding pair (22) in the planetary wheel mechanism are formed, it is the to-and-fro motion of planetary wheel mechanism along leading screw that rotatablely moving of leading screw (6) transmitted.
Among Fig. 3 (b), installation shaft z2 (27) on the seat body hole of gear bearing support (30), and load onto than control bearing (49) in the respective sides in hole, load onto axle sleeve z2 (33) in the outside; Installation shaft z3 (32) on the boss hole of gear bearing support (30), and the respective sides in hole load onto than the control bearing (49), load onto axle sleeve z3 (31) in the outside.
The principle explanation of Fig. 4 (a) pressure control mechanism:
Separable fixedly inner conical friction wheel (3) is used to make itself and planetary wheel mechanism, planetary wheel mechanism and taper sun gear (1) to compress.Identical with the outer symmetrical inclined-plane gradient of separable fixedly inner conical friction wheel (3) the respectively and contact of the wedge surface of left and right pressure wedge dish (14), (13) utilizes the horizontal motion of left pressure wedge dish (14) that separable fixedly inner conical friction wheel (3) is compressed or separates; Fixed block in the casing limits the rotation of separable fixedly inner conical friction wheel (3) by the fixed block groove on the separable fixedly inner conical friction wheel (3), makes it can only do vertical separation and compress; Pull bar (18) is to utilize lever principle, its middle fraising is fixed on spring seat (15) and goes up formation revolute pair hinged with it, the slide block guide rail that short end is equipped with on slide block and the left pressure wedge dish (14) constitutes sliding pair, control pull rod (19) also constitutes sliding pair with the long end of pull bar (18), level by control pull rod (19) moves right, pull bar (18) is rotated around middle fraising, drive left pressure wedge dish (14) horizontal motion left, reach the purpose of removal pressure, cut off the transmission of speed changer motion and power; Control pull rod is not being done the time spent, elastic force by spring (15) compresses left pressure wedge dish (14), because right pressure wedge dish (13) is fixed by the casing substantially horizontal, it has also produced the auxiliary effect that compresses to separable fixedly inner conical friction wheel (3), realized two frictions, finished the transmission of speed changer motion and power.In this mechanism, the gradient size on the inclined-plane of the wedge surface of selection pressure wedge dish (13,14) and separable fixedly inner conical friction wheel (3) according to circumstances, the sizes of fixed block and fixed block groove etc., can regulate are withstood the transmitted load of spring seat (15) and are regulated the can regulate pretightening force that bolt (17) comes control spring.
Illustrate in conjunction with Fig. 4 (b) instantiation.Right pressure wedge dish (13) is fixing by casing (26), separable fixedly inner conical friction wheel (3) is concentric with right pressure wedge dish (13) and contact and fixing by casing (26) by fixed block groove (21), left side pressure wedge dish (14) is concentric with separable fixedly inner conical friction wheel (3) and contact, spring (20) is installed on the spring seat (15), by spring seat (15) left pressure wedge dish (14) is compressed, but transmitted load is regulated bolt (17) and is withstood spring seat (15), but is used for regulating transmitted load.Left side case lid (16) but be connected for the screw thread self-locking with transmitted load adjusting bolt (17), control pull rod (19) is connected with slide opening by slide-bar with pull bar (18), fraising is positioned on the spring seat (15) in the pull bar (18), and pull bar (18) connects slide block and links to each other with the slide block guide rail of left pressure wedge dish (14).Control pull rod (19) is moved right by force level, drives pull bar (18), makes left pressure wedge dish (14) to left movement, and removal pressure wedge dish cuts off the transmission of motion and power to the pressure of separable fixedly inner conical friction wheel (3); When control pull rod (19) when not stressing, because the effect of spring (20) compresses left pressure wedge dish (14) and separable fixedly inner conical friction wheel (3), realize the transmission of motion and power, finish the function of clutch.Among the figure (c), shown the mechanism of separable fixedly inner conical friction wheel (3); Among the figure (d), shown the structure of left pressure wedge dish.
In Fig. 5, planet carrier (4) is connected by bolt with output reel (5), sets up control wheel guide rail (24) in the left side of output reel (5), and control wheel guide rail (24) compresses output bearing outer seat (39); The right side of output reel (5) is connected with bolt with control wheel supporting disk (28), and control wheel supporting disk (28), output reel (5), control wheel are installed on the slide guide of control wheel guide rail (24).
The principle explanation of Fig. 6 planetary wheel mechanism:
The semi-circular portions of sliding pair (22) is processed with the internal thread with the corresponding self-locking of leading screw (6), can be along the leading screw to-and-fro motion, and non-rotatable; Planetary gear train friction wheel (2) can rotate around the center, realizes the rotation of planetary gear train friction wheel (2) and not rotating of sliding pair (22) by gear mechanism.The rubbing surface of planetary gear train friction wheel can adopt cylinder or sphere.
Illustrate in conjunction with Fig. 6 (b) instantiation.Friction wheel left side gland (41) is connected with bolt with the right gland of the friction wheel identical with it fixes left and right bearing of planetary gear train and planetary gear train friction wheel (2), uses the sliding pair gland sliding pair (22) and the left and right bearing fixing of planetary gear train.
In Fig. 7, taper sun gear (1) is connected with bearing inner seat (36), loads onto thrust-bearing (35) at bearing inner seat (36), and bearing outer seat (34) is enclosed within thrust-bearing (35) (formal dress); Axle sleeve (37) is equipped with on taper sun gear (1) right side, axle sleeve (37) contacts with thrust-bearing (38) (formal dress), bearing outer seat (39) is enclosed within on (38), and contact with control wheel guide rail (24) and to compress, spring seat, pressure wedge dish are housed on bearing outer seat (34), and contact with them, left case lid is withstood in the left side.
Claims (7)
1, a kind of stepless speed variator, form by pressure control mechanism, drive ratio controlling device, output input mechanism, planetary wheel mechanism and taper sun gear, planetary gear train friction wheel and separable fixedly inner conical friction wheel etc., it is characterized in that: pressure control mechanism is controlled compressing of separable fixedly inner conical friction wheel and is separated, control between taper sun gear and the planetary gear train friction wheel and planetary gear train friction wheel and separable fixedly inner conical friction wheel between friction, reach the transmission of cutting off and realizing motion and power; Motion on the planet carrier of transmission ratio control mechanism controls planetary gear train in output mechanism changes velocity ratio; Utilize the revolution of planetary gear train that motion and power are spread out of to output mechanism by input mechanism.
2, in the stepless speed variator according to claim 1, taper sun gear, planetary gear train friction wheel and separable fixedly inner conical friction wheel, left pressure wedge dish, right pressure wedge dish, it is characterized in that: taper sun gear external frame is taper, profile is taper in the separable fixedly inner conical friction wheel, and profile line OP, MN, the KL of three frictions place that section produced by taper sun gear center line, separable fixedly inner conical friction wheel center line, planetary gear train friction wheel center line are parallel to each other; The exterior contour both sides of separable fixedly inner conical friction wheel have the inclined-plane identical with the gradient of the wedge surface of left and right pressure wedge dish; The separable fixedly inner conical friction wheel piece that is fixed blocks and limits its rotation around the center; Left side pressure wedge dish has slide block guide rail, but side-to-side movement, and right pressure wedge dish does not have slide block guide rail and is fixed by casing.
3, the pressure control mechanism in the stepless speed variator according to claim 1, but form by component such as left pressure wedge dish, right pressure wedge dish, spring seat, left case lid transmitted load control bolt and springs, it is characterized in that: left pressure wedge dish contacts with separable fixedly inner conical friction wheel, comes removal and the pressure that loads separable fixedly cone friction wheel by the move left and right of left pressure wedge dish; Spring seat is placed on the guide rail of left case lid, and spring is placed on the spring seat, compresses left pressure wedge dish, but transmitted load control bolt withstands spring seat; The hinging hole at pull bar middle part links to each other with spring seat, and short end links to each other with slide block axle, sequential slider, is placed on the slide block guide rail of left pressure wedge dish, and long end links to each other with control pull rod.
4, the planetary wheel mechanism in the stepless speed variator according to claim 1, form by planetary gear train friction wheel, friction wheel gland, bearing, sliding pair, sliding pair gland etc., it is characterized in that: the planetary gear train friction wheel contacts with bearing outer ring and is compressed by the friction wheel gland, and sliding pair contacts with bearing inner race and compressed by the sliding pair gland.
5, drive ratio controlling device in the stepless speed variator according to claim 1, by leading screw, bevel gear z11, z12, z21, z22, spur gear z31, tooth bar z32, axle z2, axle z3, gear bearing support, two contrast control bearings, control wheel supporting disk, the control wheel, control wheel bearing left side gland, the right gland of control wheel bearing, two embedded bearings of control wheel, component such as Joystick are formed, it is characterized in that: leading screw contacts with sliding pair in the planetary gear train, form the slip revolute, the upper end of leading screw links to each other with bevel gear z11, by bevel gear z12, z21, z22, spur gear z31, tooth bar z32 becomes rotatablely moving of leading screw with the horizontal reciprocating movement of tooth bar; Bevel gear and spur gear are by gear bearing support and axle z2, axle z3, ratio control bearing, axle sleeve are determined the position accordingly; Gear bearing support is fixed on the control wheel supporting disk, and tooth bar is fixed on the control wheel, and the control wheel is positioned on the control wheel track logos and utensils, along its horizontal reciprocating movement; Two embedded bearings of control wheel contact with the control wheel left and right sides respectively, and compress by the left and right Bearing housing of control wheel respectively, control wheel right bearing gland links to each other with Joystick, drives the control wheel along the horizontal motion of control wheel guide rail device by Joystick and continuous mechanism thereof.
6, output mechanism in the stepless speed variator according to claim 1, by planet carrier, the output reel, control wheel track logos and utensils, the output terminal bearing inner seat, the output terminal bearing outer seat, and the compositions such as thrust-bearing that are attached thereto, it is characterized in that: planetary gear train is installed on the planet carrier, planet carrier is installed on the output reel, the output reel is placed on the control wheel track logos and utensils, control wheel track logos and utensils links to each other with the output terminal bearing outer seat and compresses, the output terminal bearing inner seat contacts with the taper sun gear, the input shaft end that is enclosed within the taper sun gear contacts with bearing inner race, and bearing outer ring contacts with the output terminal bearing outer seat.
7, the input mechanism in the stepless speed variator according to claim 1, by bearing outer seat, bearing inner seat, taper sun gear and the thrust-bearing that is attached thereto, it is characterized in that: bearing inner seat is enclosed within on the input shaft of taper sun gear, bearing outer seat is enclosed within on the thrust-bearing of formal dress, be equipped with spring seat, left pressure wedge dish on bearing outer seat, left case lid is withstood in the left side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710011263A CN101067443B (en) | 2007-05-11 | 2007-05-11 | Stepless speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710011263A CN101067443B (en) | 2007-05-11 | 2007-05-11 | Stepless speed changer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101067443A true CN101067443A (en) | 2007-11-07 |
| CN101067443B CN101067443B (en) | 2010-05-19 |
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ID=38880085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710011263A Expired - Fee Related CN101067443B (en) | 2007-05-11 | 2007-05-11 | Stepless speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101067443B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104682A (en) * | 2013-02-27 | 2013-05-15 | 郑州机械研究所 | Planetary transmission system axial locating regulating device |
| CN114559357A (en) * | 2022-03-26 | 2022-05-31 | 徐德富 | Single-driven revolution and rotation polishing and shape-modifying device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4459868A (en) * | 1979-11-28 | 1984-07-17 | Sargent Frank R | Mechanical power conversion and transmission systems |
| CN1048090A (en) * | 1989-06-15 | 1990-12-26 | 曹颖新 | Mechanical stepless speed change device using friction |
| CN2130961Y (en) * | 1992-06-15 | 1993-04-28 | 张树杰 | Gearing device for friction type epicyclic transmission steples'speed variator |
| CN1070593C (en) * | 1997-01-14 | 2001-09-05 | 上海离合器总厂 | Stepless governor |
-
2007
- 2007-05-11 CN CN200710011263A patent/CN101067443B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104682A (en) * | 2013-02-27 | 2013-05-15 | 郑州机械研究所 | Planetary transmission system axial locating regulating device |
| CN103104682B (en) * | 2013-02-27 | 2015-06-03 | 郑州机械研究所 | Planetary transmission system axial locating regulating device |
| CN114559357A (en) * | 2022-03-26 | 2022-05-31 | 徐德富 | Single-driven revolution and rotation polishing and shape-modifying device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101067443B (en) | 2010-05-19 |
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Owner name: NANTONG TONGDE ELECTRIC EQUIPMENT CO., LTD. Free format text: FORMER OWNER: LV SHENGNAN Effective date: 20130807 |
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Effective date of registration: 20130807 Address after: 226521 Jiangsu city of Nantong province Rugao City Ding Yan Zhen Zhao Ming Cun 12 Group No. 75 Patentee after: Nantong Tongde Electrical Equipment Co. Ltd. Address before: Fushun City, Liaoning province 113000 Shuncheng District Hedong fifteen square Wanquan District 21 building 1-701 Patentee before: Lv Shengnan |
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