CN101067443B - Stepless speed changer - Google Patents
Stepless speed changer Download PDFInfo
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- CN101067443B CN101067443B CN200710011263A CN200710011263A CN101067443B CN 101067443 B CN101067443 B CN 101067443B CN 200710011263 A CN200710011263 A CN 200710011263A CN 200710011263 A CN200710011263 A CN 200710011263A CN 101067443 B CN101067443 B CN 101067443B
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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 theplanetary 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; The 21-fixed block; The 22-sliding pair; 23-sliding pair left side gland; 24-control wheel guide rail; 25-planetary gear train 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-gear bearing support 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 2 rotations of planetary gear train friction wheel, simultaneously, it also directly loads or the pressure of 3 pairs of planetary gear train friction wheels 2 of the separable fixedly inner conical of removal friction wheel, 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, be adjusted in planetary gear train II between taper sun gear 1 and the separable fixedly inner conical friction wheel 3 by drive ratio controlling device IV, along planet carrier 4 to-and-fro motion, thereby change taper sun gear 1 and separable fixedly inner conical friction wheel 3 effective drive diameter, so just changed velocity ratio.
Among Fig. 8, planetary wheel mechanism center line OP, separable fixedly inner conical friction wheel 3 is 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 keys, leading screw 6 has been passed in motion, and leading screw 6 rotates, and in the sliding pair 22 of planetary gear train screw thread is arranged, can produce self-locking with leading screw 6 and constitute the slip revolute, but rotation is become to-and-fro motion and the self-locking of planetary wheel mechanism along leading screw 6.
Instantiation in conjunction with Fig. 3 illustrates.Joystick 47 is connected with the right gland 46 of control wheel bearing, control wheel bearing left side gland 42 is threaded with the right gland 46 of control bearing, the embedded left bearing 43 of control wheel is equipped with in control wheel 29 left sides, the embedded right bearing 45 of control wheel is equipped with on the right side, embedded left bearing 43 of control wheel and the embedded right bearing 45 of control wheel are threaded to compress with the right gland 46 of control bearing by control wheel bearing left side gland 42 and are contained on the control wheel 29, and control is taken turns 29 and is connected with tooth bar z32 (12) bolt.Be connected with the right gland 46 of control wheel bearing 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 z22 (10), bevel gear z21 (9), bevel gear z12 (8), bevel gear z11 (7) becomes rotatablely moving of bevel gear z11 (7) with the horizontal motion of tooth bar z32 (12), bevel gear z11 (7) is with to be installed on the planet carrier 4 leading screw 6 affixed, 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 gear bearing support 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 load onto gear bearing support bearing 49 in the respective sides in hole, 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.The wedge surface of a left side pressure wedge dish 14 and right pressure wedge dish 13 is identical with the outer symmetrical inclined-plane gradient of separable fixedly inner conical friction wheel 3 respectively and contact, and 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 formation revolute pair hinged with it on the spring seat 15, 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, and pull bar 18 is rotated around middle fraising, drives left pressure wedge dish 14 horizontal motions 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 20 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, can according to circumstances select the gradient size on the inclined-plane of the wedge surface of left pressure wedge dish 14 and right pressure wedge dish 13 and separable fixedly inner conical friction wheel 3, 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 fixed by casing 26, separable fixedly inner conical friction wheel 3 and right pressure wedge dish 13 are concentric and contact and fixed by casing 26 by fixed block 21, left side pressure wedge dish 14 and separable fixedly inner conical friction wheel 3 are concentric 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.But left side case lid 16 is regulated bolt 17 with transmitted load and is connected for the screw thread self-locking, and control pull rod 19 is connected with slide opening by slide-bar with pull bar 18, and 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 does not stress, because the effect of spring 20 makes left pressure wedge dish 14 compress with 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 exports bearing outer seat 39; The right side of output reel 5 is connected with control wheel supporting disk 28 usefulness bolts, 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 leading screw 6 corresponding self-lockings, 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 several planetary gear train bearings 25 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.
Fig. 6 (a) is the planetary wheel mechanism schematic diagram, and it is to remove friction wheel left side gland 41, the right gland of friction wheel are connected used coupling with bolt schematic representation, and bolt connects used coupling and comprises bolt, nut and pad.
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); Output terminal bearing inner seat 37 is equipped with on taper sun gear 1 right side, output terminal bearing inner seat 37 contacts with thrust-bearing 38 (formal dress), output terminal bearing outer seat 39 is enclosed within on the thrust-bearing 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. stepless speed variator, form by pressure control mechanism, drive ratio controlling device, output mechanism, input mechanism and planetary wheel mechanism, it is characterized in that: by the pilot pressure control mechanism, separable fixedly inner conical friction wheel is compressed or separate, thereby control between taper sun gear and the planetary gear train friction wheel and the friction between planetary gear train friction wheel and the separable fixedly inner conical friction wheel, reach the transmission of cutting off and realizing motion and power; The transmission ratio control mechanism controls planetary wheel mechanism is the motion on the planet carrier in output mechanism, changes effective drive diameter of taper sun gear and separable fixedly inner conical friction wheel, thereby changes velocity ratio; Utilize the revolution of planetary wheel mechanism 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 left pressure wedge dish, right pressure wedge dish, spring seat, left case lid transmitted load control bolt and spring, 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 left side gland, the right gland of friction wheel, planetary gear train bearing, sliding pair, sliding pair gland bolt, nut and pad, it is characterized in that: the planetary gear train friction wheel contacts with the planetary gear train bearing outer ring and is compressed by friction wheel left side gland and the right gland of friction wheel, and sliding pair contacts with bearing inner race and compressed by the sliding pair gland.
5. the drive ratio controlling device in the stepless speed variator according to claim 1, by leading screw, bevel gear z11, bevel gear z12, bevel gear z21, bevel gear z22, spur gear z31, tooth bar z32, axle z2, axle z3, gear bearing support, the gear bearing support bearing, control wheel supporting disk, the control wheel, control wheel bearing left side gland, the right gland of control wheel bearing, the embedded bearing of control wheel, Joystick, axle key, bolt, nut and pad are formed, it is characterized in that: leading screw contacts with sliding pair in the planetary wheel mechanism, form the slip revolute, the upper end of leading screw links to each other with bevel gear z11, by bevel gear z12, bevel gear z21, bevel gear 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, gear bearing support 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 guide rail, 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 by Joystick and continuous mechanism thereof.
6. the output mechanism in the stepless speed variator according to claim 1, by planet carrier, the output reel, control wheel guide rail, the output terminal bearing inner seat, the output terminal bearing outer seat, thrust-bearing, bolt, nut and pad are formed, it is characterized in that: planetary wheel mechanism is installed on the planet carrier, planet carrier is installed on the output reel, the output reel is placed on the control wheel guide rail, control wheel guide rail 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, form by bearing outer seat, bearing inner seat, taper sun gear, thrust-bearing, bolt, nut and pad, 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 CN101067443A (en) | 2007-11-07 |
| CN101067443B true CN101067443B (en) | 2010-05-19 |
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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 |
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| Country | Link |
|---|---|
| CN (1) | CN101067443B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (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 |
| CN1188199A (en) * | 1997-01-14 | 1998-07-22 | 上海离合器总厂 | Stepless governor |
-
2007
- 2007-05-11 CN CN200710011263A patent/CN101067443B/en not_active Expired - Fee Related
Patent Citations (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 |
| CN1188199A (en) * | 1997-01-14 | 1998-07-22 | 上海离合器总厂 | Stepless governor |
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| Publication number | Publication date |
|---|---|
| CN101067443A (en) | 2007-11-07 |
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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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