CN104343912A - Spiral guiding stepless variable transmission - Google Patents
Spiral guiding stepless variable transmission Download PDFInfo
- Publication number
- CN104343912A CN104343912A CN201410581945.7A CN201410581945A CN104343912A CN 104343912 A CN104343912 A CN 104343912A CN 201410581945 A CN201410581945 A CN 201410581945A CN 104343912 A CN104343912 A CN 104343912A
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- CN
- China
- Prior art keywords
- spring seat
- spring
- roller
- disc
- speed change
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000005540 biological transmission Effects 0.000 title abstract description 7
- 238000005096 rolling process Methods 0.000 claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims description 21
- 238000004804 winding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 26
- 230000033001 locomotion Effects 0.000 abstract description 11
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000001133 acceleration Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000003116 impacting effect Effects 0.000 description 2
- 210000001138 tear Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- 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
- F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
- F16H9/12—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
- F16H9/14—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using only one pulley built-up out of adjustable conical parts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmissions By Endless Flexible Members (AREA)
Abstract
The invention discloses a spiral guiding stepless variable transmission which comprises a driving wheel assembly, a transmission belt and a driven wheel assembly, wherein a radial pin is fixedly arranged at the end part of a moving disc; a roller is arranged on the radial pin; a guiding block is arranged on the fixing disc; a spiral guiding inclined surface is arranged on the guiding block; the driving wheel assembly further comprises a synchronous ring and a disc spring; the synchronous ring leans against the outer ring of a rolling bearing; the disc spring leans against the synchronous ring and a spring base. According to the spiral guiding stepless variable transmission disclosed by the invention, the roller and the spiral guiding inclined surface in match with the roller are adopted to guide the movement track of a moving wheel in the speed change process, the friction between the moving wheel and the transmission belt is small, and the transmission belt has less abrasion and is long in service life; moreover, when an automobile is accelerated to start and speed up from an idle speed state, as the driven wheel assembly has certain rotation speed in the idle speed state, the rotation speed of the driven wheel assembly of the automobile changes stably in the starting and speeding process, and the automobile is good in starting stability.
Description
Technical field
The present invention relates to a kind of driving mechanism, particularly a kind of stepless speed change clutch.
Background technique
Usually, stepless speed change clutch comprises driving wheel combination, follower combination and driving belt, and driving wheel combination is connected with engine crankshaft, and when engine crankshaft rotates, driving wheel drives follower to rotate by driving belt, outputs power.
Wherein follower combination comprises displacement disc and fixed tray, and driving belt is between displacement disc and fixed tray, and in speed-change process, driving belt promotes displacement disc and moves axially along driven shaft, to change the radial position of driving belt on Moving plate and fixed tray, realizes speed change.
Stepless speed change clutch of the prior art, in speed-change process, displacement disc only axially moves, this make driving belt on displacement disc and fixed tray radially in moving process surface friction drag large, and then cause the driving belt rate of wear fast, working life is short.
And there is the shortcoming of vehicle launch stationarity difference in stepless speed changes devices of the prior art, reason is: existing spirally-guided stepless speed change clutch, when driving wheel rotating speed is in idling mode, driving belt has the initiative on the axle sleeve of axle, driving belt transfixion, and then follower is also in transfixion state; When vehicle transfers starting acceleration to by idling, driving belt just contact by transmission of power to follower with driving wheel, and follower is directly zero transfer to and accelerate starting state by initial speed, and follower velocity variations is large and unexpected, make to produce serious jitter phenomenon, cause vehicle start stationarity poor.And in starting overshoot, static belt contacts with the driving wheel of high speed rotating, and belt easily skids, occur serious wear problem.
Summary of the invention
In view of this, the object of this invention is to provide a kind of spirally-guided stepless speed change clutch, to solve the problems such as the driving belt fretting wear in speed-change process of existing motorcycle electrodeless variable-speed clutch is serious, starting stationarity is poor.
Spirally-guided stepless speed change clutch of the present invention, comprise driving wheel combination, driving belt and follower combination, described driving wheel combination comprises driving shaft, drive plate, axle sleeve, spring seat, spring and movable pulley, described drive plate and spring seat are fixed on driving shaft, described axle sleeve is between drive plate and spring seat, and be fixed on driving shaft by rolling bearing, described movable pulley one end is enclosed within spring seat by sliding bearing, the other end of described movable pulley is enclosed within driving shaft by sliding bearing, one section, described spring withstands on spring seat, the other end withstands on movable pulley, described follower combines the displacement disc comprising driven shaft, be fixed on the fixed tray on driven shaft and be enclosed within by sliding bearing on driven shaft,
The end winding support of described displacement disc is provided with radial peg, and described radial peg is provided with roller, and described fixed tray is provided with guide pad, described guide pad is provided with the spirality guiding surface coordinated with roller cylndrical surface;
The combination of described driving wheel also comprises and is arranged on synchronizing ring between axle sleeve and spring seat and disc spring, and described synchronizing ring is pressed against on the outer ring of rolling bearing, and described disc spring is pressed against on synchronizing ring and spring seat.
Further, described fixed tray is also provided with block, described roller is arranged between block and guide pad.
Further, described guide pad is provided with the spacing plane be connected with the low side of spirality guiding surface, described spacing plane is vertical with driven shaft.
Further, the end face of described spring seat is provided with circular orientation circle, described synchronizing ring and disc spring are arranged on circular orientation circle.
Further, described drive plate is provided with radiating fin, the height of described radiating fin is 10 ~ 20mm.
Beneficial effect of the present invention:
1, spirally-guided stepless speed change clutch of the present invention, it is led to the movable pulley movement locus in speed-change process by roller and the spirality guiding surface that coordinates with roller, because in speed-change process, movable pulley should bear the end thrust of driving belt, also the circumferential torsion of driving belt will be born, therefore displacement disc can be spinned motion, and the spirality guiding surface that guide pad is arranged can meet the movement locus requirement of displacement disc, therefore it is little to the resistance to motion of displacement disc for guide structure, and then make the impacting force between movable pulley and driving belt also corresponding less, frictional force between corresponding is also less, the rotary motion of displacement disc simultaneously can reduce the frictional force between itself and driving belt further, therefore can ensure in speed-change process that driving belt wearing and tearing are little, life-span is long, further, due between roller and spirality guiding surface for rolling friction, to make in speed-change process fretting wear between roller and spirality guiding surface little, guide structure long service life.
2, spirally-guided stepless speed change clutch of the present invention, synchronizing ring is pressed on the outer ring of rolling bearing by disc spring by it, make in the idling state, also with driving shaft synchronous axial system under the frictional force effect of axle sleeve between itself and synchronizing ring, driving belt simultaneously on axle sleeve also rotates with axle sleeve, and then driving belt drives again follower to combine rotation, therefore in idling process, follower combination is also in rotation status when accelerating starting state, driving shaft rotating speed improves, driving belt leaves axle sleeve and moves to and contact with movable pulley with drive plate, because driving belt has had certain rotating speed at idling mode, make in acceleration starting-up process, driving belt and drive plate contact with movable pulley and there will not be slippage problems, the driving belt that alleviates that can be very large weares and teares, and become acceleration starting-up process at vehicle from idling mode, driving wheel is combined through driving belt and drives follower combination to rotate, because follower is combined in idling mode, there is certain rotating speed, therefore in vehicle acceleration starting-up process, the change of follower combined rotational speed steadily, there will not be the problem accelerating shake, and then make vehicle start stationarity good.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of spirally-guided stepless speed change clutch of the present invention;
Fig. 2 is the perspective view of follower combination;
Fig. 3 is the zoomed-in view in A portion in Fig. 1;
Fig. 4 is the perspective view of guide pad.
embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in the figure, the present embodiment spirally-guided stepless speed change clutch, comprise driving wheel combination, driving belt 1 and follower combination, described driving wheel combination comprises driving shaft 2, drive plate 3, axle sleeve 4, spring seat 5, spring 6 and movable pulley 7, described drive plate and spring seat are fixed on driving shaft, described axle sleeve is between drive plate and spring seat, and be fixed on driving shaft by rolling bearing, described movable pulley one end is enclosed within spring seat by sliding bearing, the other end of described movable pulley is enclosed within driving shaft by sliding bearing, one section, described spring withstands on spring seat, the other end withstands on movable pulley, described follower combines the displacement disc 10 comprising driven shaft 8, be fixed on the fixed tray 9 on driven shaft and be enclosed within by sliding bearing on driven shaft,
The end winding support of described displacement disc 10 is provided with radial peg 11, described radial peg is provided with roller 12, described fixed tray is provided with guide pad 13, described guide pad is provided with the spirality guiding surface 14 coordinated with roller cylndrical surface;
The combination of described driving wheel also comprises and is arranged on synchronizing ring 15 between axle sleeve and spring seat and disc spring 16, and described synchronizing ring is pressed against on the outer ring of rolling bearing, and described disc spring is pressed against on synchronizing ring and spring seat.
The present embodiment spirally-guided stepless speed change clutch, it is led to the movable pulley movement locus in speed-change process by roller and the spirality guiding surface that coordinates with roller, because in speed-change process, movable pulley should bear the end thrust of driving belt, also the circumferential torsion of driving belt will be born, therefore displacement disc can be spinned motion, and the spirality guiding surface that guide pad is arranged can meet the movement locus requirement of displacement disc, therefore it is little to the resistance to motion of displacement disc for guide structure, and then make the impacting force between movable pulley and driving belt also corresponding less, frictional force between corresponding is also less, the rotary motion of displacement disc simultaneously can reduce the frictional force between itself and driving belt further, therefore can ensure in speed-change process that driving belt wearing and tearing are little, life-span is long, further, due between roller and spirality guiding surface for rolling friction, to make in speed-change process fretting wear between roller and spirality guiding surface little, guide structure long service life.
Further, the present embodiment spirally-guided stepless speed change clutch, synchronizing ring is pressed on the outer ring of rolling bearing by disc spring by it, make in the idling state, also with driving shaft synchronous axial system under the frictional force effect of axle sleeve between itself and synchronizing ring, driving belt simultaneously on axle sleeve also rotates with axle sleeve, and then driving belt drives again follower to combine rotation, therefore in idling process, follower combination is also in rotation status when accelerating starting state, driving shaft rotating speed improves, driving belt leaves axle sleeve and moves to and contact with movable pulley with drive plate, because driving belt has had certain rotating speed at idling mode, make in acceleration starting-up process, driving belt and drive plate contact with movable pulley and there will not be slippage problems, the driving belt that alleviates that can be very large weares and teares, and become acceleration starting-up process at vehicle from idling mode, driving wheel is combined through driving belt and drives follower combination to rotate, because follower is combined in idling mode, there is certain rotating speed, therefore in vehicle acceleration starting-up process, the change of follower combined rotational speed steadily, there will not be the problem accelerating shake, and then make vehicle start stationarity good.
As the improvement to the present embodiment, described fixed tray is also provided with block 17, described roller is arranged between block and guide pad, in speed-change process, when follower reaches maximum (top) speed, speed change terminates, now stop roller by block 17, displacement disc and fixed tray at the end of speed change can be avoided under inertial force effect, circumferential misalignment collision problem to occur between the two.
As the improvement to the present embodiment, described guide pad is provided with the spacing plane 18 be connected with the low side of spirality guiding surface, described spacing plane is vertical with driven shaft, spacing plane 18 is in order to limit the maximum axial displacement distance of movable pulley, movable pulley can be avoided to occur under inertial force effect super apart from mobile problem, make electrodeless variable-speed clutch functional reliability higher.
As the improvement to the present embodiment, the end face of described spring seat is provided with circular orientation circle 51, described synchronizing ring and disc spring are arranged on circular orientation circle, and this improvement makes synchronizing ring and disc spring position fix, and can avoid occurring sliding transfer problem in rotation process.
As the improvement to the present embodiment, described drive plate is provided with radiating fin 19, the height of described radiating fin 19 is 10mm, certainly in concrete enforcement, the height of radiating fin 19 also can be other values within the scope of 10 ~ 20mm, this improvement makes the height of radiating fin 17 comparatively large, and heat dispersion is better, also can produce the cooling air to drive plate in the rotation process that simultaneously dispels the heat, ensure that drive plate temperature is at optimum range, avoids high temperature failure drive plate and driving belt.
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (5)
1. a spirally-guided stepless speed change clutch, comprise driving wheel combination, driving belt and follower combination, described driving wheel combination comprises driving shaft, drive plate, axle sleeve, spring seat, spring and movable pulley, described drive plate and spring seat are fixed on driving shaft, described axle sleeve is between drive plate and spring seat, and be fixed on driving shaft by rolling bearing, described movable pulley one end is enclosed within spring seat by sliding bearing, the other end of described movable pulley is enclosed within driving shaft by sliding bearing, one section, described spring withstands on spring seat, the other end withstands on movable pulley, described follower combines the displacement disc comprising driven shaft, be fixed on the fixed tray on driven shaft and be enclosed within by sliding bearing on driven shaft,
It is characterized in that: the end winding support of described displacement disc is provided with radial peg, described radial peg is provided with roller, described fixed tray is provided with guide pad, described guide pad is provided with the spirality guiding surface coordinated with roller cylndrical surface;
The combination of described driving wheel also comprises and is arranged on synchronizing ring between axle sleeve and spring seat and disc spring, and described synchronizing ring is pressed against on the outer ring of rolling bearing, and described disc spring is pressed against on synchronizing ring and spring seat.
2. spirally-guided stepless speed change clutch according to claim 1, it is characterized in that: described fixed tray is also provided with block, described roller is arranged between block and guide pad.
3. spirally-guided stepless speed change clutch according to claim 2, is characterized in that: described guide pad is provided with the spacing plane be connected with the low side of spirality guiding surface, and described spacing plane is vertical with driven shaft.
4. spirally-guided stepless speed change clutch according to claim 1, it is characterized in that: the end face of described spring seat is provided with circular orientation circle, described synchronizing ring and disc spring are arranged on circular orientation circle.
5. spirally-guided stepless speed change clutch according to claim 4, is characterized in that: described drive plate is provided with radiating fin, and the height of described radiating fin is 10 ~ 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581945.7A CN104343912A (en) | 2014-10-27 | 2014-10-27 | Spiral guiding stepless variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581945.7A CN104343912A (en) | 2014-10-27 | 2014-10-27 | Spiral guiding stepless variable transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104343912A true CN104343912A (en) | 2015-02-11 |
Family
ID=52500153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410581945.7A Pending CN104343912A (en) | 2014-10-27 | 2014-10-27 | Spiral guiding stepless variable transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104343912A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131271A (en) * | 2017-05-08 | 2017-09-05 | 重庆高金实业有限公司 | A kind of automatically controlled CVT stepless speed variator systems |
| CN108533706A (en) * | 2018-05-16 | 2018-09-14 | 力帆实业(集团)股份有限公司 | A kind of gasoline engine driving belt mounting structure |
| CN110848350A (en) * | 2019-11-18 | 2020-02-28 | 淮阴工学院 | A resistance type automatic torque converter driven by potential energy |
| CN113915302A (en) * | 2021-10-27 | 2022-01-11 | 重庆隆鑫发动机有限公司 | Transmission and engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0898096A1 (en) * | 1997-08-20 | 1999-02-24 | TRANSFLUID S.r.l. | Automatic variable-speed drive device comprising a centrifugal friction clutch |
| CN201723683U (en) * | 2009-12-11 | 2011-01-26 | 重庆永发摩托车配件有限公司 | Stepless speed changer driving wheel of snowmobile |
| CN202728509U (en) * | 2012-02-03 | 2013-02-13 | 伍怀秋 | Stepless speed changing clutch for motorcycle |
| CN203784137U (en) * | 2013-11-26 | 2014-08-20 | 重庆长兴工业有限公司 | All-terrain vehicle stepless speed change clutch of sliding block centrifugal mechanism |
| CN204300260U (en) * | 2014-10-27 | 2015-04-29 | 重庆长兴工业有限公司 | Spirally-guided stepless speed change clutch |
-
2014
- 2014-10-27 CN CN201410581945.7A patent/CN104343912A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0898096A1 (en) * | 1997-08-20 | 1999-02-24 | TRANSFLUID S.r.l. | Automatic variable-speed drive device comprising a centrifugal friction clutch |
| CN201723683U (en) * | 2009-12-11 | 2011-01-26 | 重庆永发摩托车配件有限公司 | Stepless speed changer driving wheel of snowmobile |
| CN202728509U (en) * | 2012-02-03 | 2013-02-13 | 伍怀秋 | Stepless speed changing clutch for motorcycle |
| CN203784137U (en) * | 2013-11-26 | 2014-08-20 | 重庆长兴工业有限公司 | All-terrain vehicle stepless speed change clutch of sliding block centrifugal mechanism |
| CN204300260U (en) * | 2014-10-27 | 2015-04-29 | 重庆长兴工业有限公司 | Spirally-guided stepless speed change clutch |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131271A (en) * | 2017-05-08 | 2017-09-05 | 重庆高金实业有限公司 | A kind of automatically controlled CVT stepless speed variator systems |
| CN108533706A (en) * | 2018-05-16 | 2018-09-14 | 力帆实业(集团)股份有限公司 | A kind of gasoline engine driving belt mounting structure |
| CN110848350A (en) * | 2019-11-18 | 2020-02-28 | 淮阴工学院 | A resistance type automatic torque converter driven by potential energy |
| CN110848350B (en) * | 2019-11-18 | 2021-02-09 | 淮阴工学院 | A resistance type automatic torque converter driven by potential energy |
| CN113915302A (en) * | 2021-10-27 | 2022-01-11 | 重庆隆鑫发动机有限公司 | Transmission and engine |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150211 |
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| RJ01 | Rejection of invention patent application after publication |