CN1117228C - Belt guiding device of belt-type buncher - Google Patents
Belt guiding device of belt-type buncher Download PDFInfo
- Publication number
- CN1117228C CN1117228C CN99107051A CN99107051A CN1117228C CN 1117228 C CN1117228 C CN 1117228C CN 99107051 A CN99107051 A CN 99107051A CN 99107051 A CN99107051 A CN 99107051A CN 1117228 C CN1117228 C CN 1117228C
- Authority
- CN
- China
- Prior art keywords
- belt
- guide
- mentioned
- guide portion
- continuously variable
- 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.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 63
- 230000002093 peripheral effect Effects 0.000 claims description 37
- 230000002159 abnormal effect Effects 0.000 claims description 20
- 230000005484 gravity Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 13
- 239000003638 chemical reducing agent Substances 0.000 description 11
- 230000013228 contact guidance Effects 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000008093 supporting effect Effects 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000013536 elastomeric material Substances 0.000 description 3
- 239000004519 grease Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
-
- 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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/18—Means for guiding or supporting belts, ropes, or chains
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Transmissions By Endless Flexible Members (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Transmission Devices (AREA)
Abstract
The variable transmission for an engine block of a motor cycle consists of a belt drive (13) between a drive pulley (4) and a driven pulley (21) whose diameters are continuously variable to give speed change. Between these two pulleys is fitted a guide roller (33) which has a stepped periphery so that the gap between it and the inside of the belt (13) is reduced when the transmission speed is high and increased when the transmission speed is reduced by the variation in position of the belt.
Description
Technical field
The present invention relates to be used for the belt guide of belt type continuously variable transmission of the power plant of motor-driven two, tricycle etc., the belt guide that particularly relates to a kind of so novel belt type continuously variable transmission, it can suppress to roll up the abnormal vibrations that hangs over the annular belt between drive pulley and the driven pulley as much as possible, reduce the belt hitting sound, the life-span that can improve belt simultaneously.
Background technique
As the belt guide of this belt type continuously variable transmission, the real device of being put down in writing for flat 3-39650 number of opening of Japanese patent gazette is for example arranged.
This belt-drive variable-speed transmission has the variable drive pulley of the diameter that is located at engine crankshaft, be located at the variable driven pulley of the diameter of the transmission input shaft that is connected in driving wheel and volume hangs over annular belt between these two belt pulleys, the Guide roller that can contact with above-mentioned belt inner peripheral surface is set between two belt pulleys, between this Guide roller and belt inner peripheral surface, form the gap, when the belt abnormal vibrations, the outer circumferential face of the inner peripheral surface contact guidance roller of this belt, thus the abnormal vibrations of this belt suppressed.
Generally speaking, in above-mentioned belt type continuously variable transmission, by adjusting the effective diameter of drive pulley, by changing the effective pitch diameter that contacts between these belt pulleys and the belt, gear ratio infinitely can be adjusted to zone (low gear ratio zone) at high proportion from low proportional region (the transmission ratio zone that comprises idling), from above-mentioned low ratio to a high proportion of whole zone, the hitting sound that is produced by the vibration of belt is not under identical level, at low proportional region, it is bigger that the vibration of belt becomes relatively, and it is big that ear-piercing belt hitting sound becomes, in contrast, regional at high proportion, the vibration of belt becomes less, and above-mentioned belt hitting sound also diminishes.
Yet, in the belt guide of above-mentioned existing belt type continuously variable transmission, the gap of belt and mute pulley from low proportional region to the zone is all identical substantially at high proportion, so, even the zone at high proportion little at the belt hitting sound, that the driver not really takes notice of, belt contacts similarly at Guide roller, and this existence makes the belt wearing and tearing, is difficult to improve the problem in its life-span certainly.
Therefore, the object of the present invention is to provide a kind of belt guide of novel belt type continuously variable transmission, in above-mentioned stepless speed variator, the belt that is conceived to make ring-type along with its variable speed operation moves relative to drive pulley is parallel with driven pulley towards its width direction, make at above-mentioned low proportional region and the regional at high proportion contact condition that can change belt and guide member, thereby the belt hitting sound that the unusual vibration that promptly rises and falls that can reduce belt produces, suppress the wearing and tearing of belt simultaneously, increase substantially its life-span.
Summary of the invention
In order to achieve the above object, in the present invention, belt type continuously variable transmission by the variable drive pulley of the diameter that is connected in driving side, be connected in the annular belt that the variable driven pulley of the diameter of slave end and volume hang between these two belt pulleys and constitute, carry out variable control by the volume of above-mentioned two belt pulleys and belt is hung diameter, can change gear ratio; It is characterized in that: the guide member that when being provided with between drive pulley and the driven pulley, can contact with this belt side face when the belt abnormal vibrations, the belt guide surface of this guide member and and the side face of this belt guide surface belt in opposite directions between the gap is set, the belt guide surface of above-mentioned guide member has above-mentioned belt at transmission ratio when zone the 1st guide portion and this belt in opposite directions the 2nd guide portion during in low gear ratio zone in opposite directions, the gap of above-mentioned the 1st guide portion and belt side face is little, and the gap of above-mentioned the 2nd guide portion and belt side face is big.According to this feature, when the belt abnormal vibrations, can guide this belt by guide member, reduce the belt hitting sound, and can avoid the unnecessary contact of this belt and guide member, improve the life-span of belt.
In order to achieve the above object, also have such feature in the present invention: strength ratio the 2nd guide portion of the 1st guide portion is low.According to this feature, on the basis of above-mentioned effect, can also make belt buffering ground contact guidance member, further reduce the belt hitting sound.
In order to achieve the above object, also have such feature in the present invention: above-mentioned the 1st guide portion avoid above-mentioned belt (13) the section position of centre of gravity be arranged on the aspectant position of side face with amesiality above-mentioned belt (13).According to this feature, on the basis of above-mentioned effect, belt is tilted, contact at guide member in the step mode, further reduce the belt hitting sound.
In order to achieve the above object, also have such feature in the present invention: above-mentioned guide member is made of Guide roller, can be located at the centre of above-mentioned drive pulley and driven pulley freely to rotate, at its outer circumferential face inner peripheral surface belt guide surface in opposite directions with above-mentioned belt is arranged, this belt guide surface is provided with above-mentioned the 1st guide portion that is made of the major diameter bump and the 2nd guide portion that is made of than its little tabular surface diameter.According to this feature, on the basis of above-mentioned effect, when belt contacts with Guide roller, the Guide roller revolution, thus the abrasion of belt and Guide roller are further reduced.
In order to achieve the above object, in the present invention, also have such feature: above-mentioned guide member is provided with and forms from the case body that surrounds above-mentioned belt type continuously variable transmission is protruding integratedly, be formed with above-mentioned the 1st guide portion that is made of high plane and the 2nd guide portion that is made of low plane with the side face belt guide surface in opposite directions of this belt, above-mentioned the 1st guide portion is littler than the gap of above-mentioned the 2nd guide portion and belt side face with the gap of belt side face.According to this feature, on the basis of above-mentioned effect, the guide member of guiding belt can reduce part count and built-up time by being made of the upper and lower fixed guide sheet from the projection setting integratedly of case body, reduces cost significantly.
Description of drawings
Fig. 1 be provided with belt type continuously variable transmission belt guide power plant, along the sectional view (the 1st embodiment) of 1-1 line among Fig. 2.
Fig. 2 is along the sectional elevation of the above-mentioned power plant of 2-2 line among Fig. 1 (the 1st embodiment).
Fig. 3 is the side view (the 1st embodiment) of belt guide.
Fig. 4 is along the longitudinal section 4-4 line, belt guide (the 1st embodiment) among Fig. 3.
Fig. 5 is the major component side view the (the 2nd of the belt guide of belt type continuously variable transmission
Embodiment).
Fig. 6 is along the sectional view of 6-6 line among Fig. 5 (the 2nd embodiment).
Fig. 7 is the major component side view the (the 3rd of the belt guide of belt type continuously variable transmission
Embodiment).
Fig. 8 is along the sectional view of 8-8 line among Fig. 7 (the 3rd embodiment).
Fig. 9 is the major component side view the (the 4th of the belt guide of belt type continuously variable transmission
Embodiment).
Figure 10 is along the sectional view of 10-10 line among Fig. 9 (the 4th embodiment).
Figure 11 is the major component side view the (the 5th of the belt guide of belt type continuously variable transmission
Embodiment).
Figure 12 is along the sectional view of 12-12 line among Figure 11 (the 5th embodiment).
Embodiment
Below, with reference to the accompanying drawings shown in embodiments of the invention form of implementation of the present invention is described.Below explanation in " front and back ", " about " reach " up and down " be benchmark judgement with two-wheeled direction of advance.
At first with reference to Fig. 1～4 explanations the 1st embodiment of the present invention, the 1st embodiment is an occasion of implementing the belt guide of belt type continuously variable transmission of the present invention with oscillating power device two-wheeled.
Fig. 1 be provided with belt type continuously variable transmission of the present invention belt guide power plant, along the sectional view of 1-1 line among Fig. 2, Fig. 2 is the sectional elevation along the above-mentioned power plant of 2-2 line among Fig. 1, Fig. 3 is the side view of belt guide, and Fig. 4 is along the longitudinal section 4-4 line, belt guide among Fig. 3.
In Fig. 1,2, the front portion that is equipped with the oscillating power device P of above-mentioned belt type continuously variable transmission can be bearing in two-wheeled vehicle body F by swing axis S with swinging up and down, and its rear portion is suspended on the vehicle frame F by posterior bumper Cr.
Above-mentioned power plant P is by motor E, trailing wheel Wr, constitute its belt type continuously variable transmission B that is connected and gear reducer G, and the driving force of motor E is delivered to trailing wheel by belt type continuously variable transmission B and gear reducer G.
The case body 1 of above-mentioned power plant P forms along fore-and-aft direction is long longways in order to connect above-mentioned motor E and trailing wheel Wr, the part of the crankcase 2 of its anterior double as motor E, and the front portion of case body 1 forms the left side of the crankcase 2 of motor E.Crankcase 2 at motor E supports its bent axle 3 by a pair of ball bearing 14,15 free to rotately.The left part that extends to case body 1 side at above-mentioned bent axle 3 is provided with the variable drive pulley of diameter 4, and this drive pulley 4 is made of with movable half-pulley 6 that can relative its advance and retreat fast pulley halfbody 5.Between skewback 7 that can not be fixed in bent axle 3 and fixed side half-pulley 5 with relatively rotating, the distance ring 8 that is matched with bent axle 3 is installed, can support above-mentioned movable half-pulley 6 at this distance ring 8 with being free to slide.The slide block 9 that is arranged at these skewback 7 peripheral parts can be bonded on the axial guiding piece 10 that is formed at movable side half-pulley 6 with being free to slide, like this, skewback 7 allow movable side half-pulley 6 simultaneously in axial sliding, can with these movable side half-pulley 6 unitary rotation.Formation has the space 11 of the conical surface that narrows down towards radial outside between the inclined backside of movable side half-pulley 6 and skewback 7, accommodating the centrifugal weight 12 that constitutes by roller in this space 11, when the rotating speed increase along with bent axle 3 acts on the centrifugal force increase of centrifugal weight 12, this centrifugal weight 12 moves towards radial outside in the space 11 with conical surface, push movable side half-pulley 6, like this, this movable half-pulley 6 towards the left side move and fixed side half-pulley 5 between the interval reduce, make and be clamped in two half-pulley 5,6 section is that the annular belt 13 of V font moves towards radial outside is parallel, thereby can adjust the effective pitch diameter of belt 13 for drive pulley 4.
On the other hand, fixing the housing 16 of gear reducer G at the rear portion of case body 1, but between the rear portion of case body 1 and housing 16, the reducer input shaft 20 of gear reducer G by ball bearing 17,18 free rotaring ground supportings, supporting the driven pulley 21 of the diameter various type that constitutes by fixed side half-pulley 22 and movable side half-pulley 23 at this input shaft 20, hanging above-mentioned annular belt 13 at these driven pulley 21 volumes.Fixed side half-pulley 22 can be bearing in above-mentioned reducer input shaft 20 with axially being free to slide, is applying elastic force by spring 24 to fixed side half-pulley 22 close directions.
Left end at reducer input shaft 20 is installed with forward clutch 25, forms the actuation gear 26 of said gear retarder G simultaneously at its right-hand member.Said gear retarder G is configured in by a plurality of bolt in the housing 16 on right side, case body 1 rear portion, above-mentioned actuation gear 26 can be delivered to trailing wheel Wr behind the rotary decelerating with reducer input shaft 20 by known reduction gear 27 and driven gear 29 interlocks that are fixed in the axletree 28 of trailing wheel Wr.
The open side of above-mentioned case body 1 is covered by outside mask 31, this outside mask 31 by a plurality of bolt herein, the belt type continuously variable transmission B that is made of above-mentioned drive pulley 4, driven pulley 21 and endless-belt 13 is housed in the speed changer containing space 32 that is surrounded by above-mentioned case body 1 and outside mask 31.
In above-mentioned speed changer containing space 32, the central part between drive pulley 4 and driven pulley 21 is installed with the Guide roller 33 as guide member of the abnormal vibrations that is used to suppress belt 13.Such as shown in Figure 1, 2, this Guide roller 33 is configured in the bent axle 3 of supporting drive pulley 4 and the cardinal principle central part of the reducer input shaft 20 of supporting driven pulley 21.Therefore, even the gear ratio of belt type continuously variable transmission B changes, the line of belt 13 changes to zone at high proportion from low proportional region as shown in Figure 3, also can Guide roller 33 nearby with belt 13 between the upper and lower every keeping certain substantially.As long as abnormal vibrations does not take place belt 13, the diameter of above-mentioned Guide roller 33 just can keep predetermined gap between the inner peripheral surface of the outer circumferential face of this Guide roller 33 that is belt surface of contact and belt 13.
As shown in Figure 4, but above-mentioned Guide roller 33 passes through ball bearing 37 free rotaring ground supportings on bolt 36 with the level, and this bolt 36 is fixed on the boss 35 that is convexly equipped with towards outside mask 31 sides from case body 1 inner peripheral surface.
Shown in Fig. 3,4, above-mentioned Guide roller 33 is made of the external member 39 that the rubber elastomeric material forms by the periphery sinter bonded at metal inner members 38 such as Fe, Al, inner face at above-mentioned inner member 38 forms recess 40 and lubricated box 41, this recess 40 cooperate the outer race of fixing above-mentioned ball bearing 37, this lubricated box 41 be used to prevent grease attached to ball bearing 37 flow out to case body 1 inside and attached to belt 13.Outer circumferential face at the external member 39 of Guide roller 33 forms belt guide surface 43.The axial width of this belt guide surface 43 equals belt 13 mobile width of the inner peripheral surface of the belt 13 when low proportional region moves to zone at high proportion abreast to left and right direction, or forms slightly than its big width.The groove 44,45 that this Guide roller 33 has ring-type in the bi-side of the external member 39 of rubber formation, its peripheral part 46 forms ring-type, forms the 1st guide portion 43 that is made of the major diameter bump that protrudes towards foreign side radially at a sidepiece of close case body 1 side of this peripheral part 46
1, except the 1st guide portion 43
1Remaining part form the 2nd smooth guide portion 43 of outside
2The 2nd guide portion 43
2Accounted for the major part of above-mentioned belt guide surface 43, the 2nd guide portion 43 that this is smooth
2By be connected in the 1st guide portion 43 that constitutes by the major diameter bump that protrudes towards foreign side radially here glossily from continuous acclivitous plane of inclination
1The 1st guide portion 43 that constitutes by the major diameter bump that protrudes towards foreign side radially
1Radial thickness form than above-mentioned the 2nd guide portion 43
2Thin, intensity is lower, soft.Like that, when belt type continuously variable transmission B was in low proportional region, the inner peripheral surface of belt 13 was towards the 1st guide portion 43 that is made of the major diameter bump that protrudes towards foreign side radially shown in solid line among Fig. 4
1, in addition, like that, when belt 13 was at high proportion the zone, the inner peripheral surface of belt 13 was towards above-mentioned the 2nd guide portion 43 shown in double dot dash line among Fig. 4
2
Periphery in the above-mentioned boss part of case body 1 is being convexly equipped with mazy type rib 48 cylindraceous, it constitutes the mazy type packing, and this mazy type packing is used for working to prevent that lubricant grease from flowing out to speed changer containing space 32 from ball bearing 37 with the lubricated box 41 1 of above-mentioned Guide roller 33.
The following describes the effect of the 1st embodiment of the present invention with above-mentioned formation.
When the operation of motor E made bent axle 3 revolutions, this revolution was delivered to reducer input shaft 20 by above-mentioned belt type continuously variable transmission B, is delivered to trailing wheel Wr by gear reducer G again, makes two-wheeled walking.
; when the cumulative added-time is satisfied in the revolution of motor E; centrifugal weight 12 moves towards radial outside under action of centrifugal force, thereby the movable side half-pulley 6 of the drive pulley 4 of belt type continuously variable transmission B is moved towards the direction near fixed side half-pulley 5.Approaching along with two half-pulley 5,6, the width that is formed at V space between the two diminishes, and belt 13 moves towards the radial outside of drive pulley 4.When belt 13 is shifted to the outside, the movable half-pulley 23 of driven pulley 21 sides be subjected to above-mentioned belt 13 pushing and while the elastic force of revolting spring 24 towards left to moving, the width that is formed at the V space between two half- pulley 22,23 becomes big, and belt 13 moves towards the radially inner side of driven pulley halfbody 21 is parallel.Like this, motor E carries out stepless change, is in the big low proportional region of gear ratio when low speed turns round, and is in the little zone at high proportion of gear ratio when high speed rotary.When operation when two-wheeled because many in the walking in zone at high proportion, so certainly this belt type continuously variable transmission B at the usage frequency in zone at high proportion than many at low proportional region.
When the common operation of these power plant P, annular belt 13 between drive pulley 4 and driven pulley 21, forms predetermined gap with straight line shape stretch-draw between the belt guide surface 43 of the inner peripheral surface of this belt 13 and Guide roller 33.Like this, can avoid the unnecessary contact of belt 13 and Guide roller 33, thereby can not cause the life-span of belt 13 to be reduced because of frictional heat that its contact produces.
The vibration of drive pulley 4 and driven pulley 21, the variation of the side pressure that itself and belt are 13, the variation of the frictional force of belt 13, though the cogging of motor E etc. can produce abnormal vibrations at belt 13, but at the outer circumferential face of the inner peripheral surface contact guidance roller 33 of this occasion belt 13 is belt guide surface 43 and can suppress its vibration effectively, the generation of the hitting sound that the contact at case body 1 of reduction belt 13 causes, particularly in the 1st embodiment, change the contact condition of the belt guide surface 43 of the inner peripheral surface of belt 13 and Guide roller 33 corresponding to the working state of belt type continuously variable transmission B, can reduce the generation of above-mentioned hitting sound as much as possible, and the life-span of improving belt 13 significantly.Describe its working state below in detail.
(1) belt type continuously variable transmission B is when the big low proportional region of gear ratio is worked
At this moment, as shown in Figure 4, belt 13 parallel case body 1 sides that move to are Fig. 2,4 right side solid line positions, are positioned at the position of departing from belt 13 section position of centre of gravity C.The 1st guide portion 43 that constitutes by the major diameter bump of the inner peripheral surface of belt 13 and Guide roller 33
1In opposite directions.Like this, the gap smaller of the belt guide surface 43 of the inner peripheral surface of belt 13 and Guide roller 33.When belt 13 abnormal vibrations, this belt 13 has been eliminated above-mentioned narrow and small gap d
1, inner circumferential surface contacts the 1st guide portion 43 that is made of the major diameter bump at Guide roller 33 obliquely with stepped form
1Or the 1st, 2 guide portion 43
1, 43
2, its area of contact is little, and can become uneven contact, above-mentioned in addition the 1st guide portion 43
1Form softly with low-intensity, thereby can contact belt 13 with cushioning, can reduce belt that belt 13 contact guidance rollers 33 cause effectively by above comprehensive function and bump and speak.
As described above, as belt type continuously variable transmission B during, can reduce the above-mentioned belt hitting sound ear-piercing, that produce by belt 13 vibrations that the user is easy to perception as much as possible in the work of low proportional region.
(2) belt type continuously variable transmission B is when the little regional work at high proportion of gear ratio
At this moment, belt 13 parallel those sides of leaving case body 1 side that move to, i.e. Fig. 2,4 left sides, shown in double dot dash line like that, the 2nd guide portion 43 that constitutes by tabular surface of the inner peripheral surface of this belt 13 and Guide roller 33
2In opposite directions.Like this, the inner peripheral surface of belt 13 becomes bigger than the occasion of above-mentioned low proportional region with the gap of the belt guide surface 43 of Guide roller 33.When belt 13 abnormal vibrations, the frequency that contacts of the belt guide surface 43 of inner circumferential surface and Guide roller 33 is compared significantly with the occasion of above-mentioned low proportional region and is reduced, and when this contacts the inner peripheral surface of belt 13 and the 2nd smooth guide portion 43 of Guide roller 33
2Contact is so its area of contact is bigger than the occasion of above-mentioned low proportional region.
When this belt type continuously variable transmission B is applied to two-wheeled power plant P, this stepless speed variator B at high proportion the zone usage frequency than many at low proportional region, so, whole service zone from low proportional region to zone at high proportion, can when guaranteeing quiet effect, reduce the abrasion of belt 13 as much as possible.
Below with reference to Fig. 5,6 explanations the 2nd embodiment of the present invention.
Fig. 5 is the major component side view of the belt guide of belt type continuously variable transmission, and Fig. 6 is the sectional view along 6-6 line among Fig. 5, and the member identical with above-mentioned the 1st embodiment adopts same-sign.
In the 2nd embodiment, different with above-mentioned the 1st embodiment as the structure of the external member 139 of the Guide roller 133 of guide member.That is this Guide roller 133 is by being made of the external member 139 that the rubber elastomeric material forms with periphery sinter bonded that above-mentioned the 1st embodiment constructs metal inner members 138 such as identical Fe, Al.The 1st guide portion 143 that constitutes by the major diameter bump in the belt guide surface 143 of external member 139 peripheries
1, along the identical such a plurality of teeth 150 of its full body formation Monday, make this part be low hardness with wheel tooth, easily deformable.
As belt type continuously variable transmission B during in the operation of low proportional region, the inner peripheral surface of belt 13 is having the 1st guide portion 143 that is made of the major diameter bump of a plurality of teeth 150 across contacting obliquely
1Or the 1st guide portion 143
1With the 2nd guide portion 143
2When belt 13 abnormal vibrations, the inner peripheral surface of belt 13 buffering ground contacts the belt guide surface 143 at Guide roller 133, and can reduce its area of contact, thereby can further reduce the contact hitting sound of 13 pairs of Guide rollers 133 of belt, improves quiet effect.
As belt type continuously variable transmission B during at area operation at high proportion, produce abnormal vibrations as belt 13, then belt 13 contacts at the 2nd smooth guide portion 243 in the same manner with above-mentioned the 1st embodiment
2
Below with reference to Fig. 7,8 explanations the 3rd embodiment of the present invention.
Fig. 7 is the major component side view of the belt guide of belt type continuously variable transmission, and Fig. 8 is the sectional view along 8-8 line among Fig. 7, and the member identical with above-mentioned the 1st embodiment adopts same-sign.
The 3rd embodiment is the 2nd embodiment's distortion, and is different with above-mentioned the 1st embodiment as the structure of the external member 239 of the Guide roller 233 of guide member.That is this Guide roller 233 is by being made of the external member 239 that the rubber elastomeric material forms with periphery sinter bonded that above-mentioned the 1st embodiment constructs metal inner members 238 such as identical Fe, Al.Outer circumferential face at external member 239 is the whole zone of belt guide surface 243, that is the 1st, 2 guide portions 243
1, 243
2, integrally formed identical such a plurality of teeth 250 with wheel tooth, this tooth 250 with the 1st guide portion 243
1Corresponding part than with the 2nd guide portion 243
2Corresponding part is dark, makes these teeth 250 all be low hardness, and is easily deformable.
As belt type continuously variable transmission B during in the operation of low proportional region, the inner peripheral surface of belt 13 is having the 1st guide portion 243 of a plurality of teeth across contacting obliquely
1Or have the 1st, 2 guide portions 243 of a plurality of teeth
1, 243
2When belt 13 abnormal vibrations, the inner peripheral surface of belt 13 buffering ground contacts the belt guide surface 243 at Guide roller 233, and can reduce its area of contact, thereby can further reduce the contact hitting sound of 13 pairs of Guide rollers 233 of belt, improves quiet effect.Even belt type continuously variable transmission B is at area operation at high proportion, belt 13 also available buffer ground contact is having the 2nd guide portion 243 of a plurality of teeth 250
2, further reduce the contact hitting sound of belt 13.
Below with reference to Fig. 9,10 explanations the 4th embodiment of the present invention.
Fig. 9 is the major component side view of the belt guide of belt type continuously variable transmission B, and Figure 10 is the sectional view along 10-10 line among Fig. 9, and the member identical with above-mentioned the 1st embodiment adopts same-sign.
In the 4th embodiment, as guide member, be to use fixing guide member to replace above-mentioned the 1st～3 embodiment's Guide roller, this point is different with above-mentioned the 1st～3 embodiment.That is this guide member is made of upper and lower fixed guide sheet 333u, 333d, this upper and lower fixed guide sheet 333u, 333d integratedly from accommodate belt type continuously variable transmission B, be that outside mask 31 sides projection is provided with by the inner face of metal case bodies 1 such as Fe, Al towards interior side.This upper and lower fixed guide sheet 333u, 333d are positioned at the intermediate portion of drive pulley 4 and driven pulley 21, and be positioned at the inboard of annular belt 13, the belt guide surface 343 of these upper and lower fixed guide sheet 333u, 333d and the inner peripheral surface of belt 13 are in opposite directions, be contacted with the inner peripheral surface of belt 13 in the centre of above-mentioned two belt pulleys 4,21, therefore, no matter what kind of shift position belt 13 is in, and the belt guide surface 343 of upper and lower fixed guide sheet 333u, 333d does not change with the interval of belt 13 inner peripheral surfaces.In addition, as shown in figure 10, constituting the above-mentioned paired upper and lower fixed guide sheet 333u of guide member, the belt guide surface 343 of 333d, clipping step ground and form the smooth high plane 343 that constitutes the 1st guide portion
1With the smooth low plane 343 that constitutes the 2nd guide portion
2, the inner peripheral surface of belt 13 and above-mentioned high plane 343
1Gap d
1Little, the inner peripheral surface of belt 13 and above-mentioned low plane 343
2Gap d
2Bigger than it.Identical with above-mentioned the 1st embodiment, as belt type continuously variable transmission B during in the big low proportional region operation of gear ratio, like that, belt 13 is positioned at case body 1 side shown in solid line among Figure 10, and inner circumferential surface is across ground and above-mentioned high plane (the 1st guide portion) 343
1With low plane (the 2nd guide portion) 343
2In opposite directions, when at the little area operation at high proportion of gear ratio, like that, belt 13 is positioned at the side away from case body 1 shown in 2 dot and dash line among Figure 10, and inner circumferential surface is towards smooth low plane 343
2Therefore, when belt 13 is in low proportional region, the gap d of inner circumferential surface and upper and lower fixed guide sheet 333u, 333d
1Little, when it is at high proportion the zone, the gap d of inner circumferential surface and upper and lower fixed guide sheet 333u, 333d
2Greatly.
As belt type continuously variable transmission B during in the big low proportional region operation of gear ratio, belt 13 parallel case body 1 sides that move to, it is the solid line position among Figure 10, the inner peripheral surface of this belt 13 and upper and lower fixed guide sheet 333u, 333d in opposite directions, the gap d of the inner peripheral surface of belt 13 and upper and lower fixed guide sheet 333u, 333d
1Little, when belt 13 abnormal vibrations, the inner peripheral surface of belt 13 contacts thereon, descends the high plane 343 of fixed guide sheet 333u, 333d obliquely in the mode of step
1Or its high plane 343
1With low plane 343
2, can reduce its area of contact, and can carry out uneven contact, thereby can reduce the belt hitting sound that belt 13 contact guidance members produce effectively.
As belt type continuously variable transmission B during at the little area operation at high proportion of gear ratio, such shown in double dot dash line among Figure 10, belt 13 parallel sides that move to away from case body 1 side, the low plane (the 2nd guide portion) 343 of the inner peripheral surface of this belt 13 and upper and lower fixed guide sheet 333u, 333d
2In opposite directions.Like this, the gap d of the inner peripheral surface of belt 13 and upper and lower fixed guide sheet 333u, 333d
2Occasion than above-mentioned low proportional region is big, and when belt 13 abnormal vibrations, the frequency of belt 13 contact upper and lower fixed guide sheet 333u, 333d is littler than the occasion of above-mentioned low proportional region, and owing to the inner peripheral surface of this belt 13 contacts at smooth low plane 343
2So,, area of contact is bigger than the occasion of above-mentioned low proportional region, thereby can reduce the abrasion that produce that contact of belt 13 and upper and lower fixed guide sheet 333u, 333d.
Below with reference to Figure 11,12 explanations the 5th embodiment of the present invention.
Figure 11 is the major component side view of the belt guide of belt type continuously variable transmission B, and Figure 12 is the sectional view along 12-12 line among Figure 11, and the member identical with above-mentioned the 1st embodiment adopts same-sign.
The 5th embodiment is for being configured in above-mentioned the 4th embodiment's upper and lower fixed guide sheet the occasion in annular belt 13 outsides, upper and lower fixed guide sheet 433u, the 433d that is provided with from the inner face of case body 1 towards interior side's projection be at the intermediate portion of drive pulley 4 with driven pulley 21 integratedly, and be positioned at the outside of annular belt 13.Upper and lower fixed guide sheet 433u, 433d with belt 13 outer circumferential faces belt guide surface 443 in opposite directions, clip step in the same manner with the 4th embodiment and form high plane 443 as the 1st guide portion
1With low plane 443 as the 2nd guide portion
2
In the 5th embodiment, when belt 13 abnormal vibrations, its outer circumferential face contact is at upper and lower fixed guide sheet 433u, 433d, and other formation is identical with above-mentioned the 4th embodiment with effect, so save its explanation.
Embodiments of the invention more than have been described, but have the invention is not restricted to this embodiment, within the scope of the invention various embodiments can have been arranged.For example, in the above-described embodiments, though be implemented on the belt guide of belt type continuously variable transmission two-wheeled with in the power plant, but much less also can other power plant will be imposed in, in addition, as guide member, also available other equivalent replaces the fixed guide sheet.
As mentioned above, according to the present invention, in belt type continuously variable transmission, the guide member that when being provided with between drive pulley and the driven pulley, can contact with this belt side face when the belt abnormal vibrations, the belt guide surface of this guide member and and the side face of this belt guide surface belt in opposite directions between the gap is set, this gap is little when belt is in the transmission ratio zone, it is big when belt is in low gear ratio zone, so, when the belt abnormal vibrations, can guide this belt by guide member, reduce the belt hitting sound, and can avoid the unnecessary contact of this belt and guide member, improve the life-span of belt.
According to the present invention, the belt guide surface of above-mentioned guide member has above-mentioned belt at transmission ratio when zone the 1st guide portion and this belt in opposite directions the 2nd guide portion during in low gear ratio zone in opposite directions, the gap of above-mentioned the 1st guide portion and belt side face is little, the gap of above-mentioned the 2nd guide portion and belt side face is big, and strength ratio the 2nd guide portion of the 1st guide portion is low, so, on the basis of above-mentioned effect, can also make belt buffering ground contact guidance member, further reduce the belt hitting sound.
According to the present invention, above-mentioned the 1st guide portion is more amesiality than the belt section position of centre of gravity of belt when transmission ratio is regional, so, on the basis of above-mentioned effect, belt is tilted, contact at guide member, further reduce the belt hitting sound in the step mode.
According to the present invention, above-mentioned guide member is made of Guide roller, can be located at the centre of above-mentioned drive pulley and driven pulley freely to rotate, at its outer circumferential face inner peripheral surface belt guide surface in opposite directions with above-mentioned belt is arranged, this belt guide surface is provided with above-mentioned the 1st guide portion that is made of the major diameter bump and the 2nd guide portion that is made of than its little tabular surface diameter, so, on the basis of above-mentioned effect, when belt contacts with Guide roller, the Guide roller revolution, thus the abrasion of belt and Guide roller are further reduced.
According to the present invention, above-mentioned guide member is provided with and forms from the case body that surrounds above-mentioned belt type continuously variable transmission is protruding integratedly, be formed with above-mentioned the 1st guide portion that constitutes by high plane and the 2nd guide portion that constitutes by low plane with the side face guide portion in opposite directions of this belt, above-mentioned high plane is littler than the gap of above-mentioned low plane and belt side face with the gap of belt side face, so, on the basis of above-mentioned effect, the guide member of guiding belt passes through by from the projection setting integratedly of case body, following fixed guide sheet constitutes, can reduce part count and built-up time, reduce cost significantly.
Claims (5)
1. the belt guide of a belt type continuously variable transmission, this belt type continuously variable transmission is by the variable drive pulley of the diameter that is connected in driving side (4), be connected in the variable driven pulley (21) of diameter of slave end, volume hangs over this two belt pulleys (4,21) annular belt between (13) constitutes, by to above-mentioned two belt pulleys (4,21) hang diameter with the volume of belt (13) and carry out variable control, can change gear ratio, the guide member (33 that when being provided with between drive pulley (4) and the driven pulley (21), can contact with this belt (13) side face when belt (13) abnormal vibrations; 133; 233; 333u, 333d; 433u, 433d), at this guide member (33; 133; 233; 333u, 333d; 433u, 433d) the belt guide surface and and the side face of this belt guide surface belt (13) in opposite directions between the gap is set, it is characterized in that: above-mentioned guide member (33; 133; 233; 333u, 333d; 433u, 433d) the belt guide surface have above-mentioned belt (13) at transmission ratio when zone the 1st guide portion (43 in opposite directions
1143
1243
1343
1443
1) and this belt (13) in opposite directions the 2nd guide portion (43 when low gear ratio zone
2143
2243
2343
2443
2), above-mentioned the 1st guide portion (43
1143
1243
1343
1443
1) with the gap of belt (13) side face than above-mentioned the 2nd guide portion (43
2143
2243
2343
2443
2) little with the gap of belt (13) side face.
2. the belt dressing of belt type adjustable speed drive as claimed in claim 1 is characterized in that, above-mentioned the 1st guide portion (43
1143
1243
1343
1443
1) above-mentioned the 2nd guide portion (43 of strength ratio
2143
2243
2343
2443
2) intensity low.
3. the belt guide of belt type continuously variable transmission as claimed in claim 2 is characterized in that: above-mentioned the 1st guide portion (43
1143
1243
1343
1443
1) avoid above-mentioned belt (13) the section position of centre of gravity be arranged on the aspectant position of side face with amesiality above-mentioned belt (13).
4. as the belt guide of claim 1,2 or 3 described belt type continuously variable transmissions, it is characterized in that: above-mentioned guide member (33; 133; 233) constitute by Guide roller, can be located at freely to rotate above-mentioned drive pulley (4) and driven pulley (21) the centre, at its outer circumferential face inner peripheral surface belt guide surface in opposite directions with above-mentioned belt (13) is arranged, this belt guide surface is provided with the 1st guide portion (43 that is made of the major diameter bump
1143
1243
1) and the 2nd guide portion (43 that constitutes than its little tabular surface by diameter
2143
2243
2).
5. as the belt guide of claim 1,2 or 3 described belt type continuously variable transmissions, it is characterized in that: above-mentioned guide member (333u, 333d; 433u, 433d) from the case body (1) that surrounds above-mentioned belt type continuously variable transmission integratedly projection be provided with and form, be formed with the 1st guide portion (343 that constitutes by high plane with the side face belt guide surface in opposite directions of this belt (13)
1443
1) and by hanging down the 2nd guide portion (343 that plane constitutes
2443
2).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP149717/1998 | 1998-05-29 | ||
| JP14971798A JP3975003B2 (en) | 1998-05-29 | 1998-05-29 | Belt guide device for belt type continuously variable transmission |
| JP149717/98 | 1998-05-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1238425A CN1238425A (en) | 1999-12-15 |
| CN1117228C true CN1117228C (en) | 2003-08-06 |
Family
ID=15481292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99107051A Expired - Fee Related CN1117228C (en) | 1998-05-29 | 1999-05-26 | Belt guiding device of belt-type buncher |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP3975003B2 (en) |
| CN (1) | CN1117228C (en) |
| ES (1) | ES2185433B1 (en) |
| FR (1) | FR2779200B1 (en) |
| IT (1) | IT1308481B1 (en) |
| TW (1) | TW396250B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4806825B2 (en) * | 1999-04-07 | 2011-11-02 | シェフラー テクノロジーズ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | transmission |
| JP3709973B2 (en) * | 2000-03-31 | 2005-10-26 | 本田技研工業株式会社 | Belt-type transmission |
| CN101617150B (en) * | 2006-12-27 | 2013-03-13 | 罗伯特·博世有限公司 | Continuously variable transmission |
| JP5166473B2 (en) * | 2010-03-31 | 2013-03-21 | ジヤトコ株式会社 | Chain type continuously variable transmission and assembly method thereof |
| DE202010009261U1 (en) * | 2010-06-18 | 2010-09-16 | Wacker Neuson Se | Vibration plate with V-belt calming |
| DE102015204227A1 (en) * | 2015-03-10 | 2016-09-15 | Schaeffler Technologies AG & Co. KG | Sliding system for a belt transmission and use of a sliding rail for a belt |
| DE102018103480A1 (en) * | 2018-01-17 | 2019-07-18 | Schaeffler Technologies AG & Co. KG | Swivel element for pivotally receiving a damper device |
| WO2020153915A1 (en) * | 2019-05-27 | 2020-07-30 | Yesil Kompresor Klima Tasarim Imalat Sanayi Ve Ticaret Limited Sirketi | A cvt automatic variator transmission for a bicycle |
| JP7120204B2 (en) * | 2019-11-05 | 2022-08-17 | トヨタ自動車株式会社 | belt type continuously variable transmission |
| CN115013113A (en) * | 2022-06-07 | 2022-09-06 | 浙江联星机械股份有限公司 | Crankshaft for outboard machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6182042A (en) * | 1984-09-18 | 1986-04-25 | Honda Motor Co Ltd | Guide apparatus for chain type belt |
| JPH0339650A (en) * | 1989-07-05 | 1991-02-20 | Ishikawajima Harima Heavy Ind Co Ltd | Ultrasonic flaw detecting device for piping |
| US5593366A (en) * | 1994-05-04 | 1997-01-14 | Volkswagen Ag | Beaded guide roller |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1478075A (en) * | 1923-05-07 | 1923-12-18 | Philipson And Company Ltd | Variable gear |
| JPS54132059A (en) * | 1978-04-04 | 1979-10-13 | Toyota Motor Corp | Revolution power transmitting apparatus for vehicles |
| JPS629059A (en) * | 1985-07-04 | 1987-01-17 | Honda Motor Co Ltd | Vibration isolating construction for belt of belt transmission type stepless transmission |
| JPS629061A (en) * | 1985-07-04 | 1987-01-17 | Honda Motor Co Ltd | Vibration isolating construction for belt of belt transmission type stepless transmission |
| JPS629060A (en) * | 1985-07-04 | 1987-01-17 | Honda Motor Co Ltd | Vibration isolating construction for belt of belt transmission type stepless transmission |
| JPH0328555A (en) * | 1989-06-27 | 1991-02-06 | Nissan Motor Co Ltd | V-belt continuously variable transmission |
| JPH09264391A (en) * | 1996-03-27 | 1997-10-07 | Suzuki Motor Corp | V-belt type continuously variable transmission for vehicle |
| DE19616081C1 (en) * | 1996-04-23 | 1998-01-22 | Contitech Antriebssysteme Gmbh | Belt drive |
-
1998
- 1998-05-29 JP JP14971798A patent/JP3975003B2/en not_active Expired - Fee Related
-
1999
- 1999-05-03 TW TW088107118A patent/TW396250B/en active
- 1999-05-11 IT IT1999TO000387A patent/IT1308481B1/en active
- 1999-05-26 CN CN99107051A patent/CN1117228C/en not_active Expired - Fee Related
- 1999-05-28 FR FR9906781A patent/FR2779200B1/en not_active Expired - Fee Related
- 1999-05-28 ES ES009901172A patent/ES2185433B1/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6182042A (en) * | 1984-09-18 | 1986-04-25 | Honda Motor Co Ltd | Guide apparatus for chain type belt |
| JPH0339650A (en) * | 1989-07-05 | 1991-02-20 | Ishikawajima Harima Heavy Ind Co Ltd | Ultrasonic flaw detecting device for piping |
| US5593366A (en) * | 1994-05-04 | 1997-01-14 | Volkswagen Ag | Beaded guide roller |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2779200A1 (en) | 1999-12-03 |
| ITTO990387A1 (en) | 2000-11-11 |
| JPH11344089A (en) | 1999-12-14 |
| JP3975003B2 (en) | 2007-09-12 |
| CN1238425A (en) | 1999-12-15 |
| TW396250B (en) | 2000-07-01 |
| ITTO990387A0 (en) | 1999-05-11 |
| ES2185433A1 (en) | 2003-04-16 |
| IT1308481B1 (en) | 2001-12-17 |
| ES2185433B1 (en) | 2004-09-01 |
| FR2779200B1 (en) | 2004-01-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1285843C (en) | Chain transmission device | |
| CN1117228C (en) | Belt guiding device of belt-type buncher | |
| CN1307985A (en) | Stepless speed variator for vehicle | |
| CN1934374B (en) | Belt type continuously variable transmission, power unit having belt type continuously variable transmission, vehicle carrying belt type continuously variable transmission, and sheave for continuously | |
| CN1408057A (en) | Continuously variable transmission pulley | |
| KR100348871B1 (en) | Belt for continuously variable transmission | |
| JPH08247245A (en) | Continuously variable transmission | |
| US20090156338A1 (en) | Pulley Assembly for a Continuously Variable Transmission | |
| CN1965179B (en) | Traction mechanism for an internal combustion engine | |
| CN1144959C (en) | Lubricating oil supply device for stepless speed changer | |
| CN101069034A (en) | Piston for automatic transmission | |
| CN1704620A (en) | Cushion plate | |
| CN1328220A (en) | Guiding mechanism for circulating drive | |
| CN1249364C (en) | Leather belt for stepless speed changer | |
| CN205401649U (en) | Novel infinitely variable follows driving wheel | |
| CN1519142A (en) | Power transmission gear of small vehicle | |
| CN1403708A (en) | Variable displacement compressor with speed reducing mechanism and method for inhibiting its noise | |
| CN111746708A (en) | Motorcycle rear drive transmission system and motorcycle | |
| KR101348822B1 (en) | Continuously variable transmission for bicycle | |
| KR20030046332A (en) | Drive ring cvt belt | |
| CN1249338C (en) | Pinion-shaft support structure for starter in power unit | |
| CN1176624A (en) | Caterpillar | |
| KR200379031Y1 (en) | Belt-driven type continuously variable transmission | |
| CN209739275U (en) | Motorcycle transmission device with fuel-saving function and motorcycle | |
| RU121331U1 (en) | V-belt drive pulley |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030806 Termination date: 20110526 |