CN1229890A - Lubricating structure of stageless speed variator - Google Patents
Lubricating structure of stageless speed variator Download PDFInfo
- Publication number
- CN1229890A CN1229890A CN99104027A CN99104027A CN1229890A CN 1229890 A CN1229890 A CN 1229890A CN 99104027 A CN99104027 A CN 99104027A CN 99104027 A CN99104027 A CN 99104027A CN 1229890 A CN1229890 A CN 1229890A
- Authority
- CN
- China
- Prior art keywords
- oil
- mentioned
- speed changer
- stepless speed
- oil pump
- 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.)
- Granted
Links
Images
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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0487—Friction gearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Friction Gearing (AREA)
Abstract
The invention is to surely lubricate parts to be lubricated in continuously variable transmission, by a simple structure in which the number of part items is reduced. A transmission chamber 79 is independent of the internal space of a crank chamber 14, and an oil pump 81 is provided at the shaft end part of a transmission main shaft 21 of the continuously variable transmission T. The oil pump 81 supplies the lubricating oil sucked up from an oil reservoir 89 at the bottom of the transmission chamber 79 through an oil path 4<1> of a casing 1 to the inside of the transmission chamber 79 through oil paths 21<1> , 21<2> formed inside the transmission main shaft 21 to lubricate parts to be lubricated of the continuously variable transmission T. Since the continuously variable transmission T can be just enough and stably lubricated, and thus the oil path of lubricating oil can be shortened.
Description
The present invention relates to the stepless speed changer of the laggard line output of rotation stepless change of the input rotating member of the driving force of input motor, particularly be used for the lubricating structure of the lubricated portion of lubricated this stepless speed changer.
Carry out infinite variable speed stepless speed changer by changing the contact position that transmits rotating member continuously along the bus that forms cone shape speed change rotating member, for example, Te Kaiping 9-177919 communique, spy open flat 9-177920 communique, the spy opens the stepless speed changer of recording and narrating in the flat 9-236161 communique and understood by everybody, in the past, the oil pump that is used for lubricated stepless speed changer is generally directly driven by the crankshaft of motor, or by the rotational delay of above-mentioned crankshaft the oil pump drive shaft.
; when directly driving oil pump with crankshaft; guarantee that unimpeded to the oil circuit that imports lubricant oil away from the stepless speed changer of oil pump is difficult; in addition; when with the rotational delay of crankshaft oil pump drive shaft oil pump the time; must have from crankshaft to the gear of oil pump drive transmitting power or chain etc., can bring number of spare parts to increase like this and problem such as complex structureization.
The present invention makes, its objective is the lubricated portion that can lubricate stepless speed changer reliably with the few simple structure of number of spare parts in view of above-mentioned situation.
In order to achieve the above object, the application's the 1st invention is characterised in that, the variable-speed motor that the stepless speed changer of the laggard line output of rotation stepless change of input running shaft is housed in the crank chamber that is independent of motor and is become by zoning is indoor, and oil pump from other lubricant oil to above-mentioned variable-speed motor chamber that supply with the lubricant oil of lubricating engine and is configured in closely being close to of above-mentioned input running shaft and is driven linkedly with the rotation of this input running shaft.
According to above-mentioned formation, owing to be configured in closely being close to of input running shaft and be driven linkedly with this input running shaft to the oil pump of lubricated supplying lubricating oil of stepless speed changer, therefore, not only can make oil pump be delivered to the structure of the power-transmission system of oil pump near stepless speed changer and the rotation shortening the oil circuit of lubricant oil and can simplify the input running shaft.And, because the lubrication system of stepless speed changer is independent of the lubrication system of motor, therefore can not have excessive or do not have insufficiently, lubricated stepless speed changer stably.
The application's the 2nd invention is the further improvement to the formation of the 1st invention, it is characterized in that above-mentioned oil pump is configured in the shaft end of above-mentioned running shaft.
According to above-mentioned formation,, can further simplify the power-transmission system that leads to oil pump by directly driving oil pump with the input running shaft.
The application's the 3rd invention is to the further improvement of the formation of above-mentioned the 2nd invention, it is characterized in that, the lubricated portion that supplies with stepless speed changer from the oil circuit of the lubricant oil of the above-mentioned oil pump inside by being formed on above-mentioned input running shaft.
According to above-mentioned formation, can utilize the input running shaft to constitute simply, and can be suppressed to the length of above-mentioned oil circuit the lower limit of length from the oil circuit of oil pump to lubricated supplying lubricating oil of stepless speed changer.
The 4th invention is the further improvement that the 2nd invention constituted, and it is characterized in that, configuration is delivered to the driving force of motor the gear of above-mentioned input running shaft between above-mentioned speed change unit room and above-mentioned oil pump.
According to above-mentioned formation, can be delivered to driving force on the input running shaft uninterruptedly with oil pump.
The application's the 5th invention is the improvement to the formation of the 4th invention, it is characterized in that being formed on from the above-mentioned casing of side covering said gear to the oil circuit of above-mentioned oil pump supplying lubricating oil.
According to above-mentioned formation, because the oil circuit of oil feed pump supplying lubricating oil is formed on the casing of side of gear of input running shaft that covering is delivered to driving force stepless speed changer, therefore the special member used of the above-mentioned oil circuit of the not pattern of wants has been cut down number of spare parts thus.
Fig. 1 is the sectional arrangement drawing of for motor vehicle power unit.
Fig. 2 is the enlarged view of stepless speed changer.
Fig. 3 is the major component enlarged view (low rate) of Fig. 2
Fig. 4 is the major component enlarged view (two-forty) of Fig. 2
Fig. 5 is the 5-5 line sectional drawing of Fig. 2.
Fig. 6 is the 6-6 line sectional drawing of Fig. 2.
Embodiments of the invention are described below with reference to the accompanying drawings.
Fig. 1～Fig. 6 is the accompanying drawing of expression one embodiment of the invention.Fig. 1 is the sectional arrangement drawing of Vehicular power unit, Fig. 2 is the enlarged view of stepless speed changer, and Fig. 3 is the major component enlarged view (low rate) of Fig. 2, and Fig. 4 is the major component enlarged view (two-forty) of Fig. 2, Fig. 5 is the 5-5 line sectional drawing of Fig. 2, and Fig. 6 is the 6-6 line sectional drawing of Fig. 2.
As shown in Figure 1, this power unit P carries on two-wheeled and has the casing 1 that holds motor E, stepless speed changer T and secondary variable-speed motor R.The crank casing of casing 1 double as motor E also is divided into middle housing 2, left box body 3 that combines with the left surface of middle housing 2 and the right case 4 that combines with the right flank of middle housing 2 by 3.The crankshaft 6 that is bearing on core case 2 and the left box body 3 by a pair of ball bearing 5,5 is connected on the piston 8 by connecting rod 9, is entrenched in the cylinder block 7 these piston 8 free slidings, and this cylinder block 7 similarly supports core case 2 and left box body 3.
The left end of crankshaft 6 is provided with generator 10, this generator 10 is covered by the generator cover on the left surface that is combined in left box body 3 11.Driving gear 12 relative rotations freely are bearing on the right-hand member periphery of crankshaft of the inside that extends to right case 4, and this driving gear 12 can combine with crankshaft 6 by automatic centrifugal clutch 13.
Like that, the driven gear 25 that meshes with above-mentioned driving gear 12 is fixed on the variable-speed motor main shaft 21 (input running shaft of the present invention) of stepless speed changer T as indicated in as simultaneously with reference to Fig. 2 the time.Driven gear 25 is made of inboard gear halfbody 26 and outboard gears halfbody 27, this inboard gear halfbody 26 is combined on the variable-speed motor main shaft 21 by spline, and this outboard gears 27 can combine with this inboard gear halfbody a little with the relative rotation by several rubber absorbers 28 and mesh with above-mentioned driving gear 12.When being delivered to engine torque when change of variable-speed motor main shaft 21 through driven gear 25, alleviate the generation of impact by the distortion of above-mentioned rubber absorbers 28 from driving gear 12.
The structure of above-mentioned stepless speed changer T is described below with reference to Fig. 2.
Have on rotary driving member 29 towards the frictional contact surface in the radial direction outside is combined in variable-speed motor main shaft 21 by spline the periphery, meanwhile, the driven rotating member 30 that has towards the frictional contact surface of radial direction inboard freely is bearing on the periphery of variable-speed motor main shaft 21 by needle bearing 22 relative rotations.Carriage the 1st halfbody 31 that roughly is the cone shape can rotate relatively also by needle bearing 23 and can be bearing in axially slidably on the periphery of variable-speed motor main shaft 21, roughly becomes carriage the 2nd halfbody 32 of cup-shaped to combine with this carriage the 1st halfbody 31.
As indicated in as simultaneously with reference to Fig. 5 the time like that, stop two carriage halfbodies 31,32 with respect to the cam mechanism 33 of casing 1 rotation by the pin 34 on the periphery that is arranged on carriage the 2nd halfbody 32 along radial direction, rotate the guide holder 35 that freely is bearing in the roller 36 on this pin 34 and is fixed on bolt 24,24 on the internal face of right case 4 and constitute, above-mentioned rollers 36 is combined in the guiding groove 35 that is formed on this guide holder 35
1In.Guiding groove 35
1Direction with respect to the axis L of variable-speed motor main shaft 21 tilt alpha angle only.
As indicated in Fig. 3 and Fig. 4, several supporting axles 37 cross the fenestra 31 that is formed on carriage the 1st halfbody 31
1Set up like that, speed change rotating member 39 rotates free and endwisely slips by needle bearing 38,38 and freely is bearing on each supporting axle 37.Supporting axle 37 ... the axis L that is configured in variable-speed motor main shaft 21 is on the element of cone of center line.Each speed change rotating member 39 has cone shape the 1st friction transfer surface 40 and the 2nd friction transfer surface 41, the 1 that are continuing and rubs transfer surfaces 40 at the 1st contacting part P on the major diameter position
1The place contacts with rotary driving member 29, and the 2nd friction transfer surface 41 is at the 2nd contacting part P
2The place contacts with driven rotating member 30.
As shown in Figure 2, be provided with the centrifugal speed governor 51 of the gear ratio that two carriage halfbodies 31,32 is endwisely slipped change stepless speed changer T by rotating speed corresponding to variable-speed motor main shaft 21 in the inside of carriage the 2nd halfbody 32.Centrifugal speed governor 51 is by stationary cam member 52, movable cam member 53 and a plurality of centrifugal weights 54 ... constitute, this stationary cam member 52 is fixed on the variable-speed motor main shaft 21, this movable cam member 53 endwisely slips freely to be bearing on the variable-speed motor main shaft 21 and with said fixing cam member 52 and rotates above-mentioned centrifugal weights 54 integratedly ... be configured in the camming surface 52 of stationary cam member 52
1 Camming surface 53 with movable cam member 53
1Between.Because movable cam member 53 is combined by ball bearing 55 with carriage the 2nd halfbody 32, so both axially move under the counterrotating state of permission integratedly.
The right-hand member of variable-speed motor main shaft 21 nearby is bearing on the cover member 50 by ball bearing 56, cover member 50 is fixed on the middle housing 2, rely on compression to be arranged on the elastic force of the spring 57 between cover member 50 and carriage the 2nd halfbody 32, carriage the 1st halfbody 31 and carriage the 2nd halfbody 32 are pressed towards left direction.Therefore, because when the increase of the rotating speed of variable-speed motor main shaft 21, centrifugal weights 54 ... side shifting and push two camming surfaces 52 outside radial direction
1, 53
1So,, the elastic force of movable cam member 53 antagonistic springs 57 moves to right, and carriage the 2nd halfbody 32 that is connected on this movable cam member 53 by ball bearing 55 moves to right jointly with carriage the 1st halfbody 31.
As indicated in Fig. 2, between the left end of the right-hand member of the output gear 59 on the periphery that freely is bearing in variable-speed motor main shaft 21 by ball bearing 58 relative rotations and above-mentioned driven rotating member 30, be provided with compression relief cam mechanism 60.As simultaneously with reference to as indicated in Fig. 6, in the compression relief cam mechanism 60, at a plurality of recesses 59 of the right-hand member that is formed at output gear 59
1 Several recesses 30 with the left end that is formed at driven rotating member 30
1Between seizing steel ball 61 on both sides by the arms ..., between output gear 59 and driven rotating member 30, clamping disk spring 62, push preloading of driven rotating member 30 to apply to right.When torque to driven rotating member 30 and with output gear 59 between when relative rotation takes place, the direction (dextrad) of leaving output gear 59 owing to the driven rotating member of the effect of compression relief cam mechanism 60 30 edges is pressed.
Below, the structure of above-mentioned secondary variable-speed motor R is described with reference to Fig. 2.
The 3rd reduction gear 63 is freely being supported by ball bearing 64, needle bearing 65 and ball bearing 66 rotations, ball bearing 64 is configured between the 3rd reduction gear 63 and the left box body 3, needle bearing 65 is configured between the 3rd reduction gear 63 and the variable-speed motor main shaft 21, and ball bearing 66 is configured between the 3rd reduction gear 63 and the output gear 59.Deboost axle 69 is bearing on left box body 3 and the middle housing 2 by ball bearing 67 and needle bearing 68, and the 1st reduction gear 70 and the 2nd reduction gear 71 that are bearing on the deboost axle 69 mesh with above-mentioned output gear 59 and the 3rd reduction gear 63 respectively.Form one with the 3rd reduction gear 63 and from left box body 3 to the outstanding final output shaft 63 in outside
1On be provided with the driving sprocket wheel 73 that volume is hung sting 72.Therefore, the rotation of variable-speed motor main shaft 21 is delivered on the driving wheel by output gear the 59, the 1st reduction gear the 70, the 2nd reduction gear the 71, the 3rd reduction gear 63, driving sprocket wheel 73 and sting 72.
The 70 relative rotations of above-mentioned the 1st reduction gear freely are bearing on the deboost axle 69, and the interposed clutch 76 made by dog-clutch is set, is used for making the 1st reduction gear 70 and deboost axle 69 affixed and remove affixed.Interposed clutch 76 has sliding sleeve 77 and shift fork 78, this sliding sleeve 77 by splined shaft to free sliding be combined on the deboost axle 69, this shift fork 78 with by the control member interlock that does not show of jockey's operation and above-mentioned sliding sleeve 77 is slided.Therefore, in the time of on the left of sliding sleeve 77 is shifted among the figure by fork 78, the blade tooth 77 of sliding sleeve 77
1 Blade tooth 70 with the 1st reduction gear 70
1Engagement, the 1st reduction gear 70 is attached on the deboost axle 69 by sliding sleeve 77.Otherwise, by fork 78 in figure during the moving sliding sleeve 77 of right side, the blade tooth 77 of sliding sleeve 77
1 Blade tooth 70 with the 1st reduction gear
1Separate, the 1st reduction gear 70 is disengaged with combining of deboost axle 69.
Pushing away two-wheeledly when mobile, the rotation of wheel to stepless speed changer T, must could promote two-wheeled by secondary variable-speed motor R back transfer with the frictional force of the very big each several part of making every effort to overcome clothes stepless speed changer T.But, separated from deboost axle 69 if at this moment remove to connect the 1st reduction gear 70 of fixed, the secondary speed reducer R of interposed clutch 76, prevent transmission towards the driving force of stepless speed changer T, as long as with slight power once push away can move two-wheeled.
Below, the lubricating structure of stepless speed changer T and secondary variable-speed motor R is described.
As shown in Figure 2, stepless speed changer T and secondary variable-speed motor R are housed in the inside of the speed change unit room of being divided by left box body 3, middle housing 2 and cover 50 79.Owing to, connect the periphery of the variable-speed motor main shaft 21 of cover member 50, so the inner space of speed change unit room 79 and crank chamber 14 is separated with sealing component 80 sealings.For with the oil lubrication stepless speed changer T and the secondary variable-speed motor R that enclose in the speed change unit room 79, in addition because with the oil lubrication motor E that is stored in the crank chamber 14, so lubricant oil separately sits on the top of the other.That is, be stored in the lubricant oil of the bottom of crank chamber 14, stir the also each several part of lubricating engine E by the driven gear 25 that is arranged on the variable-speed motor main shaft 21.Stepless speed changer T and secondary variable-speed motor R oil pump 81 circuit oil lubrication by the axle head that is arranged on variable-speed motor main shaft 21.
The oil pump of being made by roulette pump 81 is made of pump case 83, pump cover 85, external rotor 86 and internal rotor 87, these pump case 83 usefulness bolts 82 are fixed on the right case 4, these pump cover 85 usefulness bolts 84 are fixed on the pump case 83, external rotor 86 rotations freely are housed in the pump case 83,87 rotations of this internal rotor freely with the interior week engagement of external rotor 86, above-mentioned internal rotor 87 is fixed on the right-hand member of variable-speed motor main shaft 21, and this variable-speed motor main shaft 21 connects pump case 83 by sealing component 88.
On the right side of holding oil sump 89 that is formed at speed change unit room 79 bottoms the filter chamber 91 that holds oil strainer 90 is set, the downside of this filter chamber 91 is by being formed on the oil circuit 4 on the right case 4
1With the oil circuit 83 that is formed on the pump case 83
1 Suction port 85 with oil pump 81
1Be communicated with.In addition, the discharge opening 85 of oil pump 81
2 Oil circuit 21 with axial perforation variable-speed motor main shaft 21 inside
1With along radial direction from this oil circuit 21
1 Several oil circuits 21 that branch out
2Be communicated with.
Below, the effect of the embodiments of the invention that have above-mentioned formation is described.
As shown in Figure 3 and Figure 4, no matter gear ratio is any state, the 1st contacting part P from the axis L of variable-speed motor main shaft 21 to rotary driving member 29
1Distance A be definite value, the 1st contacting part P from supporting axle 37 to rotary driving member 29
1Be variable value (B apart from B
L, B
T), in addition, the 2nd contacting part P from supporting axle 37 to driven rotating member 30
2Distance C be variable value (C
L, C
T), the 2nd contacting part P from the axis L of variable-speed motor main shaft 21 to driven rotating member 30
2Distance D be definite value.
The rotating speed of rotary driving member 29 as N
DR, the rotating speed of driven rotating member 30 as N
DN, as gear ratio R R=N
DR/ N
DNDuring definition, gear ratio R is provided by following formula,
R=N
DR/N
DN=(B/A)×(D/C)。
As shown in Figure 3, when motor E low speed rotation, owing to the rotating speed of the driven gear 25 that is driven by driving gear 12 is low, so affact the centrifugal weights 54 of centrifugal governor 51 ... on centrifugal force also diminish, two carriage halfbodies 31,32 are moved to the left under the resilient force of spring 57.When carriage halfbody 31 is moved to the left, the 1st contacting part P of rotary driving member 29
1Move on to the large-diameter portion side of the 1st friction transfer surface 40, increase into maximum value B apart from B
L, the 2nd contacting part P of driven rotating member 30 of while
2Move on to the minor diameter side of the 2nd friction transfer surface 41, distance C is reduced to minimum value C
LAt this moment, because above-mentioned distance A, D are definite value, when distance B increases into maximum value B
L, distance C is reduced to minimum value C
LThe time, above-mentioned gear ratio R becomes big and speed becomes low rate.
As shown in Figure 4, when motor E high speed rotating, because the rotating speed height of the driven gear 25 that driving gear 12 drives, affact the centrifugal weights 54 of centrifugal governor 51 ... on centrifugal force also become greatly, two carriage halfbodies 31,32 are because of the centrifugal weights 54 of centrifugal force to the outer side shifting of radial direction ... effect under the elastic force of antagonistic spring 57 move right.When carriage halfbody 31 moves right, the 1st contacting part P of rotary driving member 29
1Move to the 1st the friction transfer surface 40 minor diameter then, be reduced to minimum value B apart from B
T, simultaneously, the 2nd contacting part P of driven rotating member 30
2Move to the large-diameter portion side of the 2nd friction transfer surface 41, the distance C increase becomes maximum value C
T
At this moment, owing to above-mentioned distance A, D are definite value, when distance B is reduced to minimum value B
T, the distance C increase becomes maximum value C
TThe time, above-mentioned gear ratio R diminishes and speed becomes flank speed.
And, can stepless variation between from low to high corresponding to the gear ratio of the rotating speed stepless speed changer T of motor E.And because the control of above-mentioned gear ratio is automatically carried out by centrifugal governor 51, so compare with being provided with from the outside of casing 1, can seek to reduce cost and the miniaturization of stepless speed changer T because of simple structure by the situation of the gear change control device that manually carries out variable speed operation or situation that the electrical shift control gear is set.
As mentioned above, the rotation of rotary driving member 29 is by speed change rotating member 39 ... gear ratio R with regulation is delivered on the driven rotating member 30, and the rotation of further driven rotating member 30 is delivered on the output gear 59 by compression relief cam mechanism 60.At this moment, when between driven rotating member 30 and the output gear 59 because of affacting torque on the driven rotating member 30 when producing relative rotation, driven rotating member 30 by compression relief cam mechanism 60 to the direction pushing that breaks away from gear 59.The pressure that this pressure and belleville spring 62 the produces generation of cooperate makes the 1st contacting part P of rotary driving mechanism 29
1Be crimped onto that the face of the 1st friction on the transfer surface 40 pressed and the 2nd contacting part P of driven rotating member 30
2Press above being crimped onto the 2nd friction transfer surface 41.
When stepless speed changer T carries out speed change, carriage the 2nd halfbody 32 is want under the effect of the transmitting torque reaction force of rotary driving member 29 around 21 rotations of variable-speed motor main shaft, but is attached to the guiding groove 35 that forms owing to be bearing in the roller 36 of the torque cam mechanism 33 on carriage the 2nd halfbody 32 on guide holder 35
1In, this transmitting torque reaction force is prevented from, and two carriage halfbodies 31,32 can not endwisely slip rotatably.
Want anxious quicken and when engine torque is sharply increased in vehicle to run, the transmitting torque reaction force of following the rapid increase of above-mentioned engine torque to act on carriage the 2nd halfbody 32 also increases.Its result as shown in Figure 5, roller 36 is crimped onto the guiding groove 35 of inclination with loading F
1Wall on, carriage the 2nd halfbody 32 is because the guiding groove 35 of loading F
1The component F of direction
1Effect and by being pushed to the left side of Fig. 2 (low rate side).That is,, so-called effect that has a down dip and accelerating vehicle have effectively been given play to because the effect gear ratio of torque cam mechanism 33 automatically changes to the low rate side.
And, gear ratio control during for above-mentioned having a down dip, be that special gear change control device is not set, torque cam mechanism 33 is automatically controlled corresponding to the variation of engine torque, so can reach the purpose because of reducing cost of bringing of simple structure and stepless speed changer T miniaturization.In addition, as long as change the guiding groove 35 of torque cam mechanism 33
1Shape, just can easily adjust the variation characteristic of gear ratio.
In the running of stepless speed changer T and secondary variable-speed motor R, when oil pump 81 is driven by variable-speed motor main shaft 21, from the oil storage 89 of the bottom of speed change unit room 79 oil circuit 4 through oil strainer 90, right case 4
1, the oil circuit 83 of pump case 83
1 Suction port 85 with pump cover 85
1The lubricant oil that sucts is through the discharge opening 85 of pump cover 85
2 Oil circuit 21 with variable-speed motor main shaft 21
1, 21
2Supply to the inside of speed change unit room 79.Supply to speed change unit room 79 inside oil lubrication after each ball bearing and gear meshing portion of the 1st friction transfer surface 40 of speed change rotating member 39 of stepless speed changer T and the 2nd friction transfer surface 41 and stepless speed changer T and secondary variable-speed motor R, also flow back to above-mentioned oil storage 89.
Like this, the lubrication system that is independent of motor E owing to the lubrication system of stepless speed changer T and secondary variable-speed motor R is being set up, so, can not have excessive or do not have stably lubricated insufficiently stepless speed changer T and secondary variable-speed motor R.In addition, because oil pump 81 is located at the shaft end of variable-speed motor main shaft 21 and is being driven directly, so compare with the situation that drives oil pump 81 with crankshaft 6, oil pump and stepless speed changer T are approaching and can shorten the oil circuit of lubricant oil, and can simplify the structure that the rotation of variable-speed motor main shaft 21 is passed to the power-transmission system of oil pump 81.Particularly owing to form the oil circuit 21 of lubricant oil in the inside of the right case 4 of the inside of the variable-speed motor main shaft 21 that drives oil pump 81 and supporting oil pump 81
1, 21
2, 4
1So, do not need to be used to constitute the special member of these oil circuits, cut down number of spare parts thus.
In addition, be arranged on the outside of the cover member 50 of dividing speed change unit room 79 owing to the driven gear 25 that driving force is passed to the variable-speed motor main shaft 21 of stepless speed changer T, so prevented the stepless speed changer T that causes because of driven gear 25 and the maximization of speed change unit room 79, the size of driven gear 25 and the volume of speed change unit room 79 irrespectively can be set arbitrarily simultaneously, can change the gear ratio of the driving force of variable-speed motor main shaft 21 inputs.
Embodiments of the invention have been described in detail in detail above, in not breaking away from main idea scope of the present invention, can have carried out change in all designs the present invention.
For example, the stepless speed changer of any configuration beyond the present invention's stepless speed changer of going for illustrating among the embodiment.
According to the application's the 1st invention, owing to supply with lubricated lubricating oil of stepless speed changer Oil pump be configured in nearby and with the rotation of this input rotating shaft being driven linkedly of input rotating shaft Moving, so, not only can make oil pump near stepless speed changer and shorten the oil circuit of lubricating oil, and Can simplify the structure that the rotation of input rotating shaft is delivered to the power-transmission system of oil pump. And And, because the lubricating system of stepless speed changer is independent with respect to the lubricating system of engine, therefore can , nothing excessive not have stably lubricated stepless speed changer insufficiently.
According to the application's the 2nd invention, can directly drive oil pump and passable with the input rotating shaft Further simplify the structure of the power-transmission system that leads to oil pump.
According to the application's the 3rd invention, it is lubricated to supply with lubricated of stepless speed changer from oil pump The oil circuit of oil can utilize the input rotating shaft to consist of simply, and can be the length of above-mentioned oil circuit Degree is suppressed to the length lower limit.
According to the application's the 4th invention, can driving force not transmitted with oil pump with interfering To the input gyroaxis.
According to the application's the 5th invention, owing to supply lubricating oil the oil circuit of oil-feed pump to be formed on case On the body, this casing covers driving force is delivered to gear on the input gyroaxis of stepless speed changer The side is so the special member that the above-mentioned oil circuit of the not pattern of wants is used has reduced the number of part thus Amount.
Claims (5)
1. the lubricating structure of a stepless speed changer, it is characterized in that, the stepless speed changer (T) that the laggard line output of stepless change is carried out in the rotation of input running shaft (21) is housed in the speed change unit room (79) of the crank chamber (14) that is independent of motor (E), the oil pump (81) that the lubricant oil of lubricating engine (E) and other lubricant oil are supplied with above-mentioned speed change unit room (79) be configured in above-mentioned input running shaft (21) near and be driven linkedly with the rotation of this input running shaft (21).
2. the lubricating structure of stepless speed changer as claimed in claim 1 is characterized in that, above-mentioned oil pump (81) is configured in the shaft end of above-mentioned input running shaft (21).
3. the lubricating structure of stepless speed changer as claimed in claim 2 is characterized in that, is formed at the oil circuit (21 of the inside of above-mentioned input running shaft (21) from the lubricant oil process of above-mentioned oil pump (81)
1, 21
2) supply with the lubricated portion of stepless speed changer (T).
4. the lubricating structure of stepless speed changer as claimed in claim 2 is characterized in that, has disposed the gear (25) that the driving force of motor (E) is delivered to above-mentioned input running shaft (21) between above-mentioned speed change unit room (79) and above-mentioned oil pump (81).
5. the lubricating structure of stepless speed changer as claimed in claim 4 is characterized in that, to the oil circuit (4 of above-mentioned oil pump (81) supplying lubricating oil
1) be formed on the casing (1) that covers said gear (25) from the side.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP071803/98 | 1998-03-20 | ||
| JP071803/1998 | 1998-03-20 | ||
| JP07180398A JP3853964B2 (en) | 1998-03-20 | 1998-03-20 | Lubrication structure of continuously variable transmission in power unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1229890A true CN1229890A (en) | 1999-09-29 |
| CN1133832C CN1133832C (en) | 2004-01-07 |
Family
ID=13471100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991040279A Expired - Fee Related CN1133832C (en) | 1998-03-20 | 1999-03-17 | Lubricating structure of stageless speed variator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3853964B2 (en) |
| CN (1) | CN1133832C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441910C (en) * | 2005-11-11 | 2008-12-10 | 现代自动车株式会社 | Planetary gear set for an automatic transmission of a vehicle |
| CN102261457A (en) * | 2010-05-31 | 2011-11-30 | 加特可株式会社 | Oil pump apparatus |
| CN102478110A (en) * | 2010-11-24 | 2012-05-30 | 腓特烈斯港齿轮工厂股份公司 | Arrangement of oil pump in transmission |
| CN107100990A (en) * | 2012-03-28 | 2017-08-29 | 株式会社久保田 | Paddy field work vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4511708B2 (en) * | 2000-09-29 | 2010-07-28 | 本田技研工業株式会社 | Continuously variable transmission |
-
1998
- 1998-03-20 JP JP07180398A patent/JP3853964B2/en not_active Expired - Fee Related
-
1999
- 1999-03-17 CN CNB991040279A patent/CN1133832C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441910C (en) * | 2005-11-11 | 2008-12-10 | 现代自动车株式会社 | Planetary gear set for an automatic transmission of a vehicle |
| CN102261457A (en) * | 2010-05-31 | 2011-11-30 | 加特可株式会社 | Oil pump apparatus |
| CN102261457B (en) * | 2010-05-31 | 2014-10-15 | 加特可株式会社 | Oil pump apparatus |
| CN102478110A (en) * | 2010-11-24 | 2012-05-30 | 腓特烈斯港齿轮工厂股份公司 | Arrangement of oil pump in transmission |
| CN107100990A (en) * | 2012-03-28 | 2017-08-29 | 株式会社久保田 | Paddy field work vehicle |
| CN107100990B (en) * | 2012-03-28 | 2020-04-10 | 株式会社久保田 | Paddy field working vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11270642A (en) | 1999-10-05 |
| CN1133832C (en) | 2004-01-07 |
| JP3853964B2 (en) | 2006-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3853963B2 (en) | Power unit | |
| CN1265108C (en) | Stepless speed variator for vehicle | |
| CN1054674C (en) | Stepless speed variator | |
| CN100371627C (en) | Belt type continuously variable transmission | |
| CN1313749C (en) | Hydromechanical speed-change device and vehicle having speed change device mounted thereon | |
| CN100351552C (en) | Structure of lubricating differential apparatus | |
| US20110070995A1 (en) | Hybrid drive system | |
| CN1095955C (en) | Metal V-belt type continuously variable transmission | |
| CN1755171A (en) | Layout of oil pump for automatic transmission | |
| CN1301929A (en) | Lubricating oil supply device for stepless speed changer | |
| CN1959148A (en) | Automatic transmission | |
| CN1131952C (en) | Continouoly variable transmission with ratio synchronizing system | |
| CN101044314A (en) | Starter motor with idle gear | |
| CN1381683A (en) | Lubricating oil supply device | |
| CN1432721A (en) | Booster | |
| CN1133832C (en) | Lubricating structure of stageless speed variator | |
| CN1097181C (en) | Gear type power transmission | |
| CN1719065A (en) | V shape belt stepless gear | |
| CN100404911C (en) | V shape belt type stepless gear | |
| CN100353092C (en) | Lubrication structure for manual transmission | |
| CN1054675C (en) | Stepless speed variator | |
| JP3748680B2 (en) | Lubricating structure of continuously variable transmission | |
| CN1501009A (en) | Continuously improved velocity-ratio drive device | |
| KR100483939B1 (en) | Power transmission device with a continuously variable transmission | |
| CN1066527C (en) | Stepless gear |
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: 20040107 Termination date: 20120317 |