CN100540947C - Variable v-belt drive, and belt wheel, with and the vehicle of this speed changer is housed - Google Patents
Variable v-belt drive, and belt wheel, with and the vehicle of this speed changer is housed Download PDFInfo
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- CN100540947C CN100540947C CNB2004800054504A CN200480005450A CN100540947C CN 100540947 C CN100540947 C CN 100540947C CN B2004800054504 A CNB2004800054504 A CN B2004800054504A CN 200480005450 A CN200480005450 A CN 200480005450A CN 100540947 C CN100540947 C CN 100540947C
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- clamp face
- belt
- band
- driving pulley
- powder
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Images
Classifications
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- 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/16—V-belts, i.e. belts of tapered cross-section consisting of several parts
- F16G5/166—V-belts, i.e. belts of tapered cross-section consisting of several parts with non-metallic rings
Abstract
The present invention relates to variable v-belt drive.Variable v-belt drive (15) comprises driving pulley (29) with a pair of first clamp face (37a, 37b), have the driven pulley (30) of a pair of second clamp face (51a, 51b) and be wound on band (31) between two belt wheels (29,30) annularly.Band (31) has the surface of contact (58a, 58b) that is clamped between first clamp face (37a, 37b) and between second clamp face (51a, 51b).Maintain the powder with infusibility (64) in the surface of contact (58a, 58b) of second clamp face (51a, 51b) of first clamp face (37a, 37b) of driving pulley (29), driven pulley (30) and band (31) at least one as friction enhancing material.
Description
Technical field
The present invention relates to a kind of via endless belt with transmission of torque to the variable v-belt drive of driven pulley, more specifically, relate to a kind of preventing in the slide structure of (skidding) of initial operating stage stage band.
Background technique
For example, JP-A-2002-147553 discloses a kind of variable v-belt drive that is used for motorcycle, and it can infinitely adjust transmission ratio according to driving cycle.This variable v-belt drive comprises driving pulley, driven pulley and band.
Driving pulley is driven by the power transmission from motor.This driving pulley has a pair of clamp face respect to one another and is formed on trough of belt between the described clamp face.Driven pulley is via the trailing wheel interlock of reducing gear and motorcycle.This driven pulley has a pair of clamp face respect to one another and is formed on trough of belt between the described clamp face.
Band is wound between the trough of belt of the trough of belt of driving pulley and driven pulley annularly.This band has the surface of contact that contacts with the clamp face of each belt wheel.The torque of driving pulley is delivered to driven pulley by the frictional force that produces via band between the clamp face of the surface of contact of being with and each belt wheel.
As shown in figure 18, this variable v-belt drive has such characteristic: along with the clamp face that makes each belt wheel clamps the increase of the thrust of band, and also correspondingly increase of transferable torque between belt wheel and band.When act on on thrust when increasing, between the surface of contact of the clamp face of belt wheel and band, produce big surface friction drag, thus the increase of the heating value of band.The heating of band shows that kinetic energy is converted into heat energy.Transmission of torque efficient reduces with the degree corresponding to the conversion from kinetic energy to heat energy.
Figure 19 illustrate when act on on thrust when changing, the heating value of band and the variation of transmission efficiency.From Figure 19 clearly, if thrust increases, the heating value of band and the increase of thrust increase pro rata, and transmission of torque efficient reduces.Therefore, in order to increase the transmission of torque efficient between belt wheel and the band, be necessary thrust is set in necessary inferior limit.
In addition, according to the variable v-belt drive of routine, when the state with firm assembling brought into operation, particularly in the initial operating stage stage, band was easy to slide.Figure 20 is illustrated in the variation that the initial operating stage stage can be delivered to the torque of band.Find out clearly that from Figure 20 after operation beginning at once, the torque that can be delivered to band is significantly less than predetermined setting value C.Along with the passage of working time, the value of this torque is tended to increase gradually.After the process regular hour, torque reaches setting value.
Therefore, when new variable v-belt drive operation, need carry out the trial run of stepless speed variator, reach setting value up to the torque that can be delivered to band.
But in the variable v-belt drive of routine, trial run needs the slip complete obiteration of continuation up to band.Therefore, but before stepless speed variator is set in running state, need long time, and need a large amount of work to be used for the shipment of product, thereby cause cost to increase.
As the method for the slip that is controlled at the initial operating stage band, it is contemplated that increase effect thrust on tape.Yet as mentioned above, if thrust increases, the heating value of band increases inevitably.Therefore, after trial run was finished, effect thrust on tape became excessive, the transmission of torque degradation in efficiency.
Summary of the invention
The purpose of this invention is to provide a kind of variable v-belt drive, the slip of stage band in the early stage when described variable v-belt drive can prevent to move beginning will act on the extremely necessary bottom line of Thrust Control on tape simultaneously.
Another object of the present invention provides a kind of belt wheel that is used for stepless speed variator, and the slip of stage band in the early stage when described variable v-belt drive can prevent to move beginning will act on the extremely necessary bottom line of Thrust Control on tape simultaneously.
Another purpose of the present invention provides a kind of band that is used for stepless speed variator, anti-sliding stop of stage in the early stage when described variable v-belt drive can move beginning, and can expeditiously transmission of torque be arrived belt wheel.
A further object of the present invention provides a kind of vehicle that variable v-belt drive is installed, and the slip of stage band in the early stage when described variable v-belt drive can prevent to move beginning will act on the extremely necessary bottom line of Thrust Control on tape simultaneously.
To achieve these goals, variable v-belt drive according to an aspect of the present invention comprises:
Comprise a pair of first clamp face respect to one another and be formed on the driving pulley of first trough of belt between described first clamp face, described driving pulley can be adjusted the width of described first trough of belt;
Comprise a pair of second clamp face respect to one another and be formed on the driven pulley of second trough of belt between described second clamp face, described driven pulley can be adjusted the width of described second trough of belt; And
Be wound on the band between described second trough of belt of described first trough of belt of described driving pulley and described driven pulley annularly, described band has and is clamped between described first clamp face and is clamped in surface of contact between described second clamp face, it is characterized in that,
Maintain powder in the surface of contact of second clamp face of first clamp face of described driving pulley, described driven pulley and described band at least one with infusibility, described powder strengthens friction up to the material that can reach predetermined value by described band torque transmitted at least as the initial stage in operation in the contact segment of described driving pulley and described band, and described powder has the low hardness of hardness than second clamp face of first clamp face of described driving pulley and described driven pulley.
To achieve these goals, according to an aspect of the present invention, the belt wheel that is used for stepless speed variator is characterised in that: comprise that the friction layer of infusibility powder is layered in the clamp face of a pair of clamping band, the friction that this friction layer strengthens as the initial stage in operation in the contact segment of clamp face and band reaches the material of predetermined value up to the torque that is delivered to band, and described powder has the hardness lower than the hardness of clamp face.
To achieve these goals, according to an aspect of the present invention, the band that is used for stepless speed variator is characterised in that: the friction layer that comprises the infusibility powder is layered in the surface of contact by driving pulley and driven pulley clamping, this friction layer reaches the material of predetermined value as strengthening to rub at least in the initial stage of moving up to the torque that is delivered to surface of contact in the contact segment of surface of contact and driving pulley, and described powder has the hardness lower than the hardness of driving pulley and driven pulley.
To achieve these goals, vehicle according to an aspect of the present invention is equipped with variable v-belt drive, it is characterized in that, this variable v-belt drive comprises:
Comprise a pair of first clamp face respect to one another and be formed on the driving pulley of first trough of belt between this first clamp face, described driving pulley can be adjusted the width of described first trough of belt;
Comprise a pair of second clamp face respect to one another and be formed on the driven pulley of second trough of belt between this second clamp face, described driven pulley can be adjusted the width of described second trough of belt; And
Be wound on the band between second trough of belt of first trough of belt of described driving pulley and described driven pulley annularly, described band has and is clamped between described first clamp face and is clamped in surface of contact between described second clamp face, and with the transmission of torque of described driving pulley to described driven pulley, and
Maintain powder in the surface of contact of second clamp face of first clamp face of described driving pulley, described driven pulley and described band at least one with infusibility as friction enhancing material, described powder strengthens friction at least as the initial stage in operation and reaches the material of predetermined value up to the torque that is delivered to band in the contact segment of driving pulley and band, and has the low hardness of hardness than second clamp face of first clamp face of described driving pulley and described driven pulley.
Description of drawings
Fig. 1 is the side view that the motorcycle of variable v-belt drive is installed according to the first embodiment of the present invention;
Fig. 2 is the side view according to the Package power that comprises four stroke engine and variable v-belt drive of the first embodiment of the present invention;
Fig. 3 is the sectional view according to the variable v-belt drive of the first embodiment of the present invention;
Fig. 4 is the side view of the band that uses in the variable v-belt drive according to the first embodiment of the present invention;
Fig. 5 is the sectional view of the band that uses in the variable v-belt drive according to the first embodiment of the present invention;
Fig. 6 is the sectional view along the line F6-F6 among Fig. 5;
Fig. 7 is the sectional view that friction layer is layered in the state on the clamp face of driving pulley in the schematically illustrated first embodiment of the present invention;
Fig. 8 is the sectional view that schematically illustrated infusibility powder remains on the state on the clamp face of driving pulley;
The sectional view of the state that Fig. 9 is schematically illustrated infusibility powder between the surface of contact of the clamp face of driving pulley and band;
Figure 10 is the sectional view that the A part among Fig. 8 is shown with magnification ratio;
Figure 11 is the sectional view that the infusibility powder remains on the state on the surface of contact of band in the schematically illustrated first embodiment of the present invention;
Figure 12 illustrates the torque that can be delivered to band in the first embodiment of the present invention performance plot about the transformation of working time;
Figure 13 is the side view of the variable v-belt drive according to a second embodiment of the present invention of the high friction portion of belt wheel when the transmission ratio maximum is shown and the position relation between the band;
Figure 14 illustrates the side view of the variable v-belt drive according to a second embodiment of the present invention of the high friction portion of hour belt wheel and the position relation between the band of transmission ratio;
Figure 15 is the side view of the driving pulley of a third embodiment in accordance with the invention;
Figure 16 is the sectional view of the driving pulley of a third embodiment in accordance with the invention;
Figure 17 is the sectional view of the band of a fourth embodiment in accordance with the invention;
Figure 18 be illustrate in the conventional variable v-belt drive effect on tape thrust and the performance plot of the relation between the transferable torque;
Figure 19 illustrates effect thrust and the heating value of band and the performance plot of the relation between the transmission efficiency on tape in the conventional variable v-belt drive; And
Figure 20 be illustrate can be delivered in the conventional variable v-belt drive with on torque about the performance plot of the transformation of working time.
Embodiment
With reference to Fig. 1 to Figure 12 the first embodiment of the present invention is described below.
Fig. 1 illustrates the motorcycle 1 as the example of vehicle according to the invention.This motorcycle 1 has vehicle frame 2.This vehicle frame 2 comprise turn to before pipe 3, a pair of person in charge 4 (only illustrate be responsible for 4) and a pair of seat guide rail 5 (seat guide rail 5 only is shown).Pipe 3 is positioned at the front end of vehicle frame 2 and supports front-wheels 7 via front fork 6 before turning to.
Each is responsible for 4 from turning to preceding pipe 3 to extend back.The person in charge 4 comprises from the first half 4a that turn to preceding pipe 3 to extend obliquely downwards, from upwardly extending obliquely latter half of 4b in the lower end of first half 4a and the intermediate portion 4c between first half 4a and latter half of 4b.
Seat guide rail 5 is suspended between the person in charge 4 the first half 4a and latter half of 4b.Seat guide rail 5 supporting seats 8, motorcyclist is striden and is taken advantage of on this seat.Vehicle frame 2 is covered by vehicle body cover cap 9.Vehicle body cover cap 9 is extended to the lower end of seat 8.
Back arm support 10 is fixed on respectively to be responsible on 4 the intermediate portion 4c.This back arm support 10 is outstanding downwards from being responsible for 4 intermediate portion 4c.The postbrachium 11 that back arm support 10 supportings extend back.This postbrachium 11 can vertically be swung with respect to vehicle frame 2.The back end bearing of postbrachium 11 is as the trailing wheel 12 of runner.
Vehicle frame 2 supportings drive the power unit 13 of trailing wheel 12.As depicted in figs. 1 and 2, power unit 13 comprises four-cycle, single-cylinder engine 14 and the variable v-belt drive 15 as driving source.Power unit 13 is covered by the bottom of vehicle body cover cap 9.
Crankcase 16 holds bent axle 18 and unshowned reduction gears mechanism.As shown in Figure 3, crankcase 16 is via bearing 19a and 19b supporting crankshaft 18.Bent axle 18 flatly is provided with along the width direction of motorcycle 1.
Reduction gears mechanism has drive sprocket 20 (shown in Fig. 1) at its output terminal.This drive sprocket 20 is positioned at the back of bent axle 18.Chain 22 is wound between the driven sprocket 21 of drive sprocket 20 and trailing wheel 12.
The cylinder 17 of motor 14 projects upwards along the first half 4a that is responsible for 4 from crankcase 16.Cylinder 17 holds piston 23.Piston 23 is connected to the crankweb 25a and the 25b of bent axle 18 via connecting rod 24.
As shown in Figures 2 and 3, variable v-belt drive (hereinafter referred to as " CVT ") 15 is positioned at the right side of crankcase 16.CVT 15 is contained in the transmission case 28.Transmission case 28 is fixed on the right lateral surface of crankcase 16.
CVT 15 comprises driving pulley 29, driven pulley 30 and is with 31.Driving pulley 29 is positioned at the front end of transmission case 28 and is supported by input shaft 32.Input shaft 32 is integral with bent axle 18.In other words, the collar 18a that is positioned at the right-hand member of bent axle 18 extends and the part of this extension also is used as input shaft 32 towards the front end of transmission case 28.
Driving pulley 29 has a pair of first clamp face 37a and the 37b.One first clamp face 37a is formed on the fixed tray 34a.Another first clamp face 37b is formed on the slider disc 34b.The first clamp face 37a and 37b are conical and toward each other.The first clamp face 37a and 37b limit first trough of belt 38 with V-arrangement sectional shape between fixed tray 34a and slider disc 34b.The width L1 of first trough of belt 38 is by the slip adjustment of slider disc 34b.
Cam disk 39 is fixed on the outer circumferential of input shaft 32.Cam disk 39 rotates together with input shaft 32 and is relative with slider disc 34b.Can endwisely slipping on the cam disk 39 thereby slider disc 34b hook is contained in along input shaft 32.When therefore, cam disk 39 and slider disc 34b can rotate together along cam disk 39 and slider disc 34b is closer to each other or away from direction move.
Driven pulley 30 is positioned at the rear end of transmission case 28 and is bearing on the output shaft 42.Output shaft 42 is parallel to the input end that input shaft 32 was provided with and was connected to via a unshowned automatic centrifugal clutch reduction gears mechanism.
Driven pulley 30 comprises fixed tray 45a and slider disc 45b.Fixed tray 45a has the column axle collar 46 in its center of rotation.The axle collar 46 engages with the outer circumferential surface of output shaft 42.Because this joint, fixed tray 45a rotates with output shaft 42.
The axle collar 46 has a plurality of joining pins 49.Joining pin 49 is given prominence to and is engaged in slidably in the engaging groove 48 of sleeve 47 to the outside of the axle collar 46.Fixed tray 45a and slider disc 45b move along fixed tray 45a and the approaching and distancing direction of slider disc 45b when therefore, can rotate together.
Driven pulley 30 has a pair of second clamp face 51a and the 51b.One second clamp face 51a is formed on the fixed tray 45a.Another second clamp face 51b is formed on the slider disc 45b.The second clamp face 51a and 51b form taper shape also toward each other.The second clamp face 51a and 51b limit second trough of belt 52 with V-arrangement sectional shape between fixed tray 45a and slider disc 45b.The width L2 of second trough of belt 52 can be according to the slip adjustment of slider disc 45b.
One spring seat 53 is fixed on an end of the axle collar 46.This spring seat 53 is relative with slider disc 45b.One compression helical spring 54 is plugged between spring seat 53 and the slider disc 45b.Spring 54 is towards fixed tray 45a bias slide dish 45b.
As shown in Figure 3, be wound on annularly between second trough of belt 52 of first trough of belt 38 of driving pulley 29 and driven pulley 30 with 31.As shown in Figs. 4-6, be with 31 to comprise a plurality of resin mass 56 and a pair of link 57.
The employing polyamide resin is used for the matrix as resin mass 56.Carbon fiber or aramide-fibre are sneaked in the described matrix as reinforcing material.Polyamide resin has high heat resistance and can resist the impact load of repetition.Polyamide resin can stable for extended periods of time character.Carbon fiber and aramide-fibre all have high intensity and heat resistance.Therefore, resin mass 56 is very outstanding on heat resistance, wearability and endurance.
As shown in Figure 5, each resin mass 56 all has a pair of surface of contact 58a and 58b.Surface of contact 58a and 58b are separated from each other along the width direction with 31.Surface of contact 58a and 58b tilt, thereby extend along the first clamp face 37a of driving pulley 29 and the second clamp face 51a and the 51b of 37b and driven pulley 30 respectively.Be formed with recess 59 respectively at the surface of contact 58a of each resin mass 56 and the middle part of 58b.
Fit into of surface of contact 58a and the 58b indentation of the link 57 of recess 59 from resin mass 56.Therefore, when being with 31 to reel around first and second troughs of belt 38 and 52, only the surface of contact 58a of resin mass 56 contacts with 51b with first clamp face 37a of driving pulley 29 and the second clamp face 51a of 37b and driven pulley 30 with 58b.
In other words, second clamp face 51a of the first clamp face 37a of driving pulley 29 and 37b and driven pulley 30 and 51b are with the resin mass 56 of predetermined thrust clamping band 31.Thereby, but at driving pulley 29 and between with 31 and driven pulley 30 and with 31 between obtain the expected value of transmitting torque.
Under the very low state of the rotating speed of bent axle 18, for example when motor 14 idling, roller weighs 41 centers of rotation that move to driving pulley 29.Thereby slider disc 34b is positioned at apart from fixed tray 34a position farthest, the width L1 maximum of first trough of belt 38.Therefore, around first trough of belt 38 reel with 31 centers of rotation that are positioned at driving pulley 29.Around driving pulley 29 reel with 31 diameter minimum.
On the other hand, in driven pulley 30, slider disc 45b by spring 54 towards fixed tray 45a bias voltage.The width L2 minimum of second trough of belt 52.Therefore, be pushed to the outer circumferential of export-oriented driven pulley 30 around what second trough of belt 52 was reeled with 31.Around driven pulley 30 reel with 31 diameter maximum.Therefore, CVT 15 has maximum transmission ratio.
Along with the increase of the revolution of bent axle 18, roller weighs 41 and utilizes centrifugal force to move along the radial outward of slider disc 34b.Because this moving, slider disc 34b slides towards fixed tray 34a, thereby the width L1 of first trough of belt 38 reduces gradually.Therefore, be clamped in being promoted by radial outward between the first clamp face 37a and the 37b along driving pulley 29 with 31.The diameter with 31 of reeling around driving pulley 29 increases.
On the contrary, in driven pulley 30, spurred by center of rotation towards driven pulley 30 with 31.Therefore, the biasing force of slider disc 45b antagonistic spring 54 slides away from the direction of fixed tray 45a along slider disc 45b.The width L2 of second trough of belt 52 increases gradually.Therefore, the diameter with 31 of reeling around driven pulley 30 reduces.Thereby the transmission ratio of CVT 15 reduces.When the diameter with 31 of reeling around driving pulley 29 is maximum, the transmission ratio minimum of CVT 15.
The fixed tray 34a of driving pulley 29 and the fixed tray 45a of driven pulley 30 are for example made by the Cr-Mo steel (SCM420) through over carburizing, quenching and temper. Fixed tray 34a and 45a have the surface hardness that is shown as 80 ± 2HRA.The slider disc 34b of driving pulley 29 is by making through surface-treated pack alloys (ADC11) such as for example chromium plating.Slider disc 34b has and is shown as 800HV or higher surface hardness.The slider disc 45b of driven pulley 30 is formed by mechanical structure carbon steel (S35C) and has a surface hardness that is shown as 63HB.
Each second clamp face 51a of the first clamp face 37a of driving pulley 29 and 37b and driven pulley 30 and 51b integral body respectively are coated with friction layer 63.By obtaining friction layer 63 finishing on mach first clamp face 37a and 37b and the second clamp face 51a and the 51b carbon dust 64 that for example applies as friction enhancing material.Shown in the first clamp face 37a of driving pulley among Fig. 7 29,, friction layer 63 upward has the thickness that is enough to bury fully groove 62 thereby being layered in the first clamp face 37a.
In addition, carbon dust 64 has the first clamp face 37a and second clamp face 51a of 37b and driven pulley 30 and the low hardness of hardness of 51b than driving pulley 29.
In the new CVT 15 that has just assembled, the first clamp face 37a of driving pulley 29 and the second clamp face 51a and the 51b of 37b and driven pulley 30 are coated with friction layer 63.Therefore, carbon dust 64 is in such state, and promptly carbon dust 64 is maintained on the first and second clamp face 37a, 37b, 51a and the 51b.
If the operation of new CVT 15 begins, shown in the driving pulley among Fig. 9 29, in the initial stage of operation, carbon dust 64 enters driving pulley 29 and with the small gap g between 31.Thereby, driving pulley 29 with increase with 31 area of contact and driven pulley 30 and area of contact with 31.Carbon dust 64 has infusibility, even produce heat during variable speed operation, carbon dust 64 still keeps pulverulence.Therefore, carbon dust 64 plays the effect of sliding with 31 that stops.
The state of first clamp face 37a when Fig. 8 and Figure 10 illustrate CVT 15 continuation operations.Because the state of another first clamp face 37b and the second clamp face 51a and 51b is identical with the first clamp face 37a, therefore herein as the representative explanation first clamp face 37a.
Along with the passage of working time, cover the first clamp face 37a friction layer 63 a part since be with 31 to contact and removed and spill into transmission case 28 from the first clamp face 37a.Thereby the carbon dust 64 that enters groove 62 remains on the first clamp face 37a.Simultaneously, the edge of groove 62 since be with 31 to contact and wiped off, cause the degree of depth of groove 62 to reduce.
On the other hand, be with in 31, the surface of contact 58a of resin mass 56 wipes off owing to contacting with the first clamp face 37a with 58b.Thereby, initial wear with 31.As shown in figure 10, the resinous principle of wiping off with 31 quilt 65 is transferred to groove 62 and with carbon dust 64 filling slots 62.The first clamp face 37a becomes level and smooth.
As shown in figure 11, on the surface of contact 58a of carbon dust 64 attached to resin mass 56.The uneven part that carbon dust 64 is filled on the surface of contact 58a, thus make surface of contact 58a level and smooth.Therefore, make and to stablize with the contact condition between the first clamp face 37a of 31 surface of contact 58a and driving pulley 29.
According to this first embodiment of the present invention, in the initial stage of CVT 15 operations, carbon dust 64 prevents the slip with 31.Thereby in when beginning operation, the thrust that need not increase clamping band 31 just can improve driving pulley 29 and with between 31 and driven pulley 30 and with the transmission of torque efficient between 31.This makes does not need trial run.
Begin through after the certain hour from operation, friction layer 63 is removed and residual carbon dust 64 is filled the groove 62 of the first clamp face 37a.Therefore, at driving pulley 29 and between being with 31 and driven pulley 30 and be with 31 between transferable torque become and the corresponding value of thrust.
Figure 12 is illustrated in the variation of this embodiment's CVT 15 inherent transferable torques of initial operating stage stage with working time.As shown in figure 12, owing to there is carbon dust 64, be a bit larger tham the predetermined initial value B of transferable torque in the value of transferable torque A of initial operating stage stage.As time goes by, the value of this torque A reduces and becomes the initial value B of torque gradually.
According to said structure, carbon dust 64 has the low hardness of hardness than the second clamp face 51a and the 51b of the first clamp face 37a of driving pulley 29 and 37b and driven pulley 30.Thereby carbon dust 64 can not damage the first clamp face 37a and the 37b or second clamp face 51a and the 51b.Therefore, can control the wearing and tearing of the first clamp face 37a and 37b or the second clamp face 51a and 51b by this structure, this can prevent the slip with 31.
In addition, according to this embodiment, constitute with a plurality of resin mass of 31 56 and form by polyamide resin.Thereby the heat resistance with 31 and serviceability improve, and the stable performance of retaining belt 31 for a long time.
Figure 13 and Figure 14 illustrate the second embodiment of the present invention.Second embodiment and first embodiment's difference is first clamp face 37a of driving pulley 29 and second clamp face 51a and the 51b of 37b and driven pulley 30.Identical among second embodiment among the remaining part of CVT 15 and first embodiment.Therefore, in a second embodiment, be marked with identical with reference to the label and the explanation of omitting these parts with parts identical among first embodiment.
The first clamp face 37a and the 37b of driving pulley 29 have high friction part 71.Equally, second clamp face 51a of driven pulley 30 and 51b have high friction part 72.To the first clamp face 37a and 37b and the second clamp face 51a with 51b carries out shot peening or blast cleaning is handled, and obtain high friction part 71 and 72 by respectively. High friction part 71 and 72 comprises many tiny uneven portions.These uneven portions form direction-free meshed design.
The high friction part 71 of driving pulley 29 is formed on the center of rotation place of the first clamp face 37a and 37b annularly.Thereby, when reel around driving pulley 29 with 31 diameter hour, be with 31 to be clamped between the high friction part 71.Part outside the high friction part 71 of the first clamp face 37a and 37b is through the mach processing facial 73 as cutting or grinding.The friction factor of high friction part 71 is higher than the friction factor of processing facial 73.
The high friction part 72 of driven pulley 30 is formed on the periphery of the second clamp face 51a and 51b annularly.Thereby, when the diameter with 31 of reeling around driven pulley 30 is maximum, be with 31 to be clamped between the high friction part 72.Part outside the high friction part 72 of the second clamp face 51a and 51b is through the mach processing facial 74 as cutting or grinding.The friction factor of high friction part 72 is higher than the friction factor of processing facial 74.
Although not shown, the first clamp face 37a and 37b and the second clamp face 51a and 51b be coated with first embodiment in identical friction layer.The thickness that friction layer is layered in the first clamp face 37a and 37b and the second clamp face 51a and 51b is enough to fill by the groove of machining formation and the uneven portion of high friction part 71 and 72.
According to this structure, minimum and be clamped in around the running state that driven pulley 30 is reeled between the high friction part 72 of the high friction part 71 of driving pulley 29 and driven pulley 30 with the diameter with 31 of reeling with 31 diameter maximum around driving pulley 29 with 31.In other words, be clamped between the part of the first clamp face 37a and 37b and the second clamp face 51a and 51b with 31 running statees with high coefficient of friction with the transmission ratio maximum of CVT 15.
Therefore, in the initial stage of operation, between carbon dust 64 is easy to rest on driving pulley 29 and is with 31 and rest on driven pulley 30 and be with between 31.Thereby, at the transmission ratio of CVT 15 maximum and act on 31 on the running state of tension force maximum under, can guarantee to prevent slip with 31.
According to said structure, when the transmission ratio of CVT 15 reduces gradually, be with 31 to shift out from high friction part 71 and 72.Thereby the running state that can reduce at the tension force on acting on 31 prevents the wearing and tearing with 31.
Figure 15 and 16 illustrates the third embodiment of the present invention.
In the 3rd embodiment, the fixed tray 34a of driving pulley 29 is described as an example.As shown in figure 15, on the first clamp face 37a of fixed tray 34a, be formed with a plurality of ribs 81.Projection 81 is extended on the whole first clamp face 37a radially from the center of rotation of fixed tray 34a.Projection 81 limits a plurality of radial grooves 82 on the first clamp face 37a.Projection 81 and radial groove 82 are arranged alternately on the first clamp face 37a.Therefore, the whole first clamp face 37a is as the high friction part 83 with high coefficient of friction.
Although not shown, the first clamp face 37a be coated with first embodiment in identical friction layer.Friction layer is laminated to the thickness that is enough to fill projection 81 and groove 82 on the first clamp face 37a.
According to this structure, owing to high friction part 83 is positioned on the whole first clamp face 37a, so carbon dust must remain on the first clamp face 37a.Even, still can prevent slip with 31 with 31 position changes of reeling.
Figure 17 illustrates the fourth embodiment of the present invention.
In the 4th embodiment, surface of contact 58a with 31 and 58b are coated with the friction layer 63 that improves friction.Identical among structure with 31 and first embodiment.In addition, as among first embodiment, friction layer 63 comprises the infusibility carbon dust.
According to the 4th embodiment, friction layer 63 is laminated to the thickness of the uneven portion that is enough to the surface of contact of filling tape 31 58a and 58b on 31 surface of contact 58a and 58b.
When being with 31 to be wound between driving pulley and the driven pulley, friction layer 63 is plugged on to be with between 31 and two belt wheels when new.In the initial stage of operation, the carbon dust that is included in the friction layer 63 enters with in the little gap between 31 and two belt wheels.Thereby, with 31 and each belt wheel between area of contact increase.Therefore, as among first embodiment, carbon dust is used as the trigger with 31.
In first embodiment, the trigger that carbon dust 64 is used as with 31.Yet the present invention is not limited to this embodiment.The powder that can use other kind is carbon black for example.
Particularly, can use powdered graphite, it is a kind of carbon black.Preferred use particle size is the powdered graphite of 5 μ m～150 μ m.When using powdered graphite to form friction layer, at first prepare the liquid phase material that obtains by with powdered graphite and tackiness agent and mixing diluents.This liquid phase material is coated in driving pulley, driven pulley and the band at least one.
Tackiness agent be used for powdered graphite be fixed to driving pulley, driven pulley or with on resin.Consider the time of drying and the adding quantity of this liquid phase material, be suitable for adopting acrylic resin and olefin resin as this resin.Thinner suitably keeps the viscosity of liquid phase material, makes working efficiency when being easy to adjust the density and the thickness of friction layer and improving the coating liquid phase material.It is the esters solvent of representative that the example of thinner comprises with the butyl acetate, is the kind solvent of representative with the MEK, is the petroleum-type solvent of representative with the hexane, and is the alcohols solvent of representative with methyl alcohol.
For the proportions of ingredients of powdered graphite, tackiness agent and thinner, powdered graphite is set at 2～80% weight percentages, remaining 20～98% weight percentages are tackiness agent and thinner.
The zine oxide that can also use powdery is as the powder of prevention with 31 slip.Yet, to compare with zine oxide, carbon dust is cheap, and is favourable aspect cost.Consider cost and, wish to use carbon dust the influence of belt wheel.
In first embodiment, on driving pulley and driven pulley, all be formed with friction layer.Yet the present invention is not limited to this.Friction layer can be formed on in driving pulley and the driven pulley one.According to this structure, the powder that is included in the friction layer supplies on another the belt wheel with friction layer via band.Therefore, can prevent two belt wheels and the band between slip.
Implement at driving pulley, driven pulley and to be with and all to form friction layer when of the present invention.
Vehicle according to the invention is not limited to motorcycle.For example, the present invention is used in three-wheel or four-wheel ATV (off highway vehicle) or the snowmobile that travels on the roughness pavement equally.
Industrial applicibility
According to the present invention, the operation initial stage, the infusibility powder prevent with slip. Therefore, Need not increase the thrust of clamping band, just can improve between driving pulley and the band and driven pulley and band Between transmission of torque efficient, thereby do not need to try out.
Claims (45)
1. variable v-belt drive comprises:
Comprise a pair of first clamp face respect to one another and be formed on the driving pulley of first trough of belt between described first clamp face, described driving pulley can be adjusted the width of described first trough of belt;
Comprise a pair of second clamp face respect to one another and be formed on the driven pulley of second trough of belt between described second clamp face, described driven pulley can be adjusted the width of described second trough of belt; And
Be wound on the band between described second trough of belt of described first trough of belt of described driving pulley and described driven pulley annularly, described band has and is clamped between described first clamp face and is clamped in surface of contact between described second clamp face,
The torque of described driving pulley is delivered to described driven pulley via described band, and
Maintain powder in the surface of contact of second clamp face of first clamp face of described driving pulley, described driven pulley and described band at least one with infusibility,
It is characterized in that, described powder is as the material that strengthens friction at least in the contact segment of described driving pulley and described band, and described powder has the low hardness of hardness than second clamp face of first clamp face of described driving pulley and described driven pulley.
2. a variable v-belt drive according to claim 1 is characterized in that, described powder is up to reaching the initial stage of operation of predetermined value as the material of described enhancing friction by described band torque transmitted.
3. a variable v-belt drive according to claim 1 and 2 is characterized in that, first clamp face of described driving pulley and second clamp face of described driven pulley have the recess of the described powder of a plurality of maintenances.
4. a variable v-belt drive according to claim 1 and 2 is characterized in that, the surface of contact of described band has the recess of the described powder of a plurality of maintenances.
5. variable v-belt drive according to claim 1 and 2, it is characterized in that, described powder has such feature, promptly, when described strap clamp was held between described first clamp face and be clamped between described second clamp face, described powder can be owing to melting because of the surface of contact of described band and the fricative heat between described first and second clamp faces.
6. a variable v-belt drive according to claim 1 and 2 is characterized in that, described band comprises a plurality of links that have the resin mass of described surface of contact and connect described resin mass annularly.
7. a variable v-belt drive according to claim 6 is characterized in that, adopts the matrix of polyamide resin as described resin mass, and carbon fiber or aramide-fibre are sneaked in the described matrix as reinforcing material.
8. variable v-belt drive comprises:
Comprise a pair of first clamp face respect to one another and be formed on the driving pulley of first trough of belt between described first clamp face, described driving pulley can be adjusted the width of described first trough of belt;
Comprise a pair of second clamp face respect to one another and be formed on the driven pulley of second trough of belt between described second clamp face, described driven pulley can be adjusted the width of described second trough of belt; And
Be wound on the band between second trough of belt of first trough of belt of described driving pulley and described driven pulley annularly, described band has and is clamped between described first clamp face and is clamped in surface of contact between described second clamp face,
The torque of described driving pulley is delivered to described driven pulley via described band, and
Be laminated with the friction layer that comprises the infusibility powder in the surface of contact of second clamp face of first clamp face of described driving pulley, described driven pulley and described band at least one,
It is characterized in that, described friction layer is as the material that strengthens friction at least in the contact segment of described band and described driving pulley, and described powder has the low hardness of hardness than second clamp face of first clamp face of described driving pulley and described driven pulley.
9. a variable v-belt drive according to claim 8 is characterized in that, described friction layer is used as the material of described enhancing friction in the initial stage of the operation that reaches predetermined value up to the torque that can be delivered to described band.
One kind according to Claim 8 or 9 described variable v-belt drives, it is characterized in that first clamp face of described driving pulley and second clamp face of described driven pulley have the recess of the described powder of a plurality of maintenances.
11. a variable v-belt drive according to claim 10 is characterized in that the surface of contact of described band has the recess of the described powder of a plurality of maintenances.
12. one kind according to Claim 8 or 9 described variable v-belt drives, it is characterized in that, described powder has such feature, promptly, when described strap clamp was held between described first clamp face and be clamped between described second clamp face, described powder can be owing to melting because of the surface of contact of described band and the fricative heat between described first and second clamp faces.
13. one kind according to Claim 8 or 9 described variable v-belt drives, it is characterized in that, form described friction layer by at least one carbon coating or zine oxide in the surface of contact of second clamp face of first clamp face of described driving pulley, described driven pulley and described band.
14. one kind according to Claim 8 or 9 described variable v-belt drives, it is characterized in that, apply by in hydrocarbon black powder, sneaking into the material that tackiness agent obtains by in the surface of contact of second clamp face of first clamp face of described driving pulley, described driven pulley and described band at least one and form described friction layer.
15. one kind according to Claim 8 or 9 described variable v-belt drives, it is characterized in that, when passing through predetermined working time, at least a portion of described friction layer is removed, and is included in residual powder in the described friction layer and partly is maintained in the surface of contact of second clamp face of first clamp face of described driving pulley, described driven pulley and described band at least one.
16. one kind according to Claim 8 or 9 described variable v-belt drives, it is characterized in that, described band comprises a plurality of links that have the resin mass of described surface of contact and connect described resin mass annularly, adopt the matrix of polyamide resin, and carbon fiber or aramide-fibre are sneaked in the described matrix as reinforcing material as described resin mass.
17. a belt wheel that is used for stepless speed variator comprises:
The clamp face of a pair of clamping band; And
The friction layer that comprises the infusibility powder, described friction layer are layered on the described clamp face,
It is characterized in that described friction layer is as the material that strengthens friction in the contact segment of described clamp face and described band, and described powder has the hardness lower than the hardness of described clamp face.
18. a belt wheel that is used for stepless speed variator according to claim 17 is characterized in that, described friction layer is up to reaching the initial stage of operation of predetermined value as the material of described enhancing friction by described band torque transmitted.
19. one kind according to claim 17 or the 18 described belt wheels that are used for stepless speed variator, it is characterized in that described clamp face has the recess of the described powder of a plurality of maintenances.
20. one kind according to claim 17 or the 18 described belt wheels that are used for stepless speed variator, it is characterized in that, form described friction layer by applying to described clamp face by sneak into the material that tackiness agent obtains in hydrocarbon black powder.
21. one kind according to claim 17 or the 18 described belt wheels that are used for stepless speed variator, it is characterized in that, described powder has such feature, promptly, when described strap clamp was held between the described clamp face, described powder can be owing to melting because of the fricative heat between described band and the described clamp face.
22. a band that is used for stepless speed variator, described band are wound between driving pulley and the driven pulley annularly, described band have by the surface of contact of described each belt wheel clamping and with the transmission of torque of described driving pulley to described driven pulley, it is characterized in that:
The friction layer that comprises the infusibility powder is layered on the described surface of contact, described friction layer is as the material that strengthens friction at least in the contact segment of described surface of contact and described driving pulley, and described powder has the hardness lower than the hardness of described driving pulley and described driven pulley.
23. a band that is used for stepless speed variator according to claim 22 is characterized in that, described friction layer is used as the material of described enhancing friction in the initial stage of the operation that reaches predetermined value up to the torque that can be delivered to described surface of contact.
24. one kind according to claim 22 or the 23 described bands that are used for stepless speed variator, it is characterized in that, form described friction layer by applying to described surface of contact by sneak into the material that tackiness agent obtains in hydrocarbon black powder.
25. one kind according to claim 22 or the 23 described bands that are used for stepless speed variator, it is characterized in that, described powder has such feature, that is, described powder can be owing to melting because of the fricative heat between described surface of contact and described driving pulley and the described driven pulley.
26. one kind according to claim 22 or the 23 described bands that are used for stepless speed variator, it is characterized in that described surface of contact has the recess of the described powder of a plurality of maintenances.
27. a band that is used for stepless speed variator comprises: resin mass with a plurality of driving pulleys that are made of metal and surface of contact of the driven pulley clamping that is made of metal; And the link that connects described resin mass annularly, described band be wound on annularly between described driving pulley and the described driven pulley with thus with the transmission of torque of described driving pulley to described driven pulley, it is characterized in that:
The friction layer that comprises the infusibility powder is layered on the described surface of contact, described friction layer is as the material that strengthens friction at least in the contact segment of described resin mass and described driving pulley, and described powder has the hardness lower than the hardness of described driving pulley and described driven pulley.
28. a band that is used for stepless speed variator according to claim 27 is characterized in that, described friction layer is used as the material of described enhancing friction in the initial stage of the operation that reaches predetermined value up to the torque that can be delivered to described resin mass.
29. one kind according to each described band that is used for stepless speed variator in the claim 27 to 28, it is characterized in that, forms described friction layer by applying to described surface of contact by sneak into the material that tackiness agent obtains in hydrocarbon black powder.
30. one kind according to each described band that is used for stepless speed variator in the claim 27 to 28, it is characterized in that, described powder has such feature, that is, described powder can be owing to melting because of the fricative heat between described surface of contact and described driving pulley and the described driven pulley.
31. one kind according to each described band that is used for stepless speed variator in the claim 27 to 28, it is characterized in that described surface of contact has the recess of the described powder of a plurality of maintenances.
32. the vehicle that variable v-belt drive is installed,
Described variable v-belt drive comprises:
Comprise a pair of first clamp face respect to one another and be formed on the driving pulley of first trough of belt between described first clamp face, described driving pulley can be adjusted the width of described first trough of belt;
Comprise a pair of second clamp face respect to one another and be formed on the driven pulley of second trough of belt between described second clamp face, described driven pulley can be adjusted the width of described second trough of belt; And
Be wound on the band between second trough of belt of first trough of belt of described driving pulley and described driven pulley annularly, described band has and is clamped between described first clamp face and is clamped in surface of contact between described second clamp face, and with the transmission of torque of described driving pulley to described driven pulley, and
Maintain powder in the surface of contact of second clamp face of first clamp face of described driving pulley, described driven pulley and described band at least one with infusibility,
It is characterized in that described powder is as strengthening the material of friction at least in the contact segment of described driving pulley and described band, and have the low hardness of hardness than second clamp face of first clamp face of described driving pulley and described driven pulley.
33. a vehicle according to claim 32 is characterized in that, described powder is used as the material of described enhancing friction in the initial stage of the operation that reaches predetermined value up to the torque that can be delivered to band.
34. one kind according to claim 32 or 33 described vehicles, it is characterized in that, the power transmission in the self-driven source of described driving pulley origin drives, described driven pulley and the runner interlock that is used to travel.
35. one kind according to claim 32 or 33 described vehicles, it is characterized in that, described powder has such feature, promptly, when described strap clamp was held between described first clamp face and be clamped between described second clamp face, described powder can be owing to melting because of the surface of contact of described band and the fricative heat between described first and second clamp faces.
36. a variable v-belt drive comprises:
Comprise a pair of first clamp face respect to one another and be formed on the driving pulley of first trough of belt between described first clamp face, described driving pulley can be adjusted the width of described first trough of belt;
Comprise a pair of second clamp face respect to one another and be formed on the driven pulley of second trough of belt between described second clamp face, described driven pulley can be adjusted the width of described second trough of belt; And
Be wound on the band between second trough of belt of first trough of belt of described driving pulley and described driven pulley annularly, described band has and is clamped between described first clamp face and is clamped in surface of contact between described second clamp face,
The torque of described driving pulley is delivered to described driven pulley via described band, and
Maintain powder in the surface of contact of second clamp face of first clamp face of described driving pulley, described driven pulley and described band at least one with infusibility,
It is characterized in that described powder is as the material that strengthens friction at least in the contact segment of described driving pulley and described band, described powder has the hardness lower than the hardness of described first and second clamp faces, and the part of described powder is removed by operation.
37. a variable v-belt drive comprises:
Comprise a pair of first clamp face respect to one another and be formed on the driving pulley of first trough of belt between described first clamp face, described driving pulley can be adjusted the width of described first trough of belt;
Comprise a pair of second clamp face respect to one another and be formed on the driven pulley of second trough of belt between described second clamp face, described driven pulley can be adjusted the width of described second trough of belt; And
Be wound on the band between second trough of belt of first trough of belt of described driving pulley and described driven pulley annularly, this band has and is clamped between described first clamp face and is clamped in surface of contact between described second clamp face,
The torque of described driving pulley is delivered to described driven pulley via described band, and
Be laminated with the friction layer that comprises powder in the surface of contact of second clamp face of first clamp face of described driving pulley, described driven pulley and described band at least one with infusibility,
It is characterized in that, described friction layer is as the material that strengthens friction at least in the contact segment of described driving pulley and described band, described powder has the hardness lower than the hardness of described first and second clamp faces, and at least a portion of described friction layer is removed by operation.
38. one kind according to claim 36 or 37 described variable v-belt drives, it is characterized in that, described powder has such feature, promptly, when described strap clamp was held between described first clamp face and be clamped between described second clamp face, described powder can be owing to melting because of the surface of contact of described band and the fricative heat between described first and second clamp faces.
39. one kind according to claim 36 or 37 described variable v-belt drives, it is characterized in that the surface of contact of described band is formed from a resin.
40. a belt wheel that is used for stepless speed variator comprises:
The clamp face of a pair of clamping band; And
The friction layer that comprises the infusibility powder, described friction layer are layered on the described clamp face,
It is characterized in that described friction layer is as the material that strengthens the friction between described clamp face and the described band, described powder has the hardness lower than the hardness of described clamp face, and at least a portion of described friction layer is removed from described clamp face by operation.
41. a band that is used for stepless speed variator, described band are wound between driving pulley and the driven pulley annularly, described band have by the surface of contact of described each belt wheel clamping and with the transmission of torque of described driving pulley to described driven pulley,
The friction layer that comprises the infusibility powder is layered on the described surface of contact,
It is characterized in that, described powder is as the material that strengthens the friction between described surface of contact and the described at least driving pulley, described powder has the hardness lower than the hardness of described driving pulley and described driven pulley, and at least a portion of described friction layer is removed from described surface of contact by operation.
42. the vehicle that variable v-belt drive is installed,
Described variable v-belt drive comprises:
Comprise a pair of first clamp face respect to one another and be formed on the driving pulley of first trough of belt between described first clamp face, described driving pulley can be adjusted the width of described first trough of belt;
Comprise a pair of second clamp face respect to one another and be formed on the driven pulley of second trough of belt between described second clamp face, described driven pulley can be adjusted the width of described second trough of belt;
Be wound on the band between second trough of belt of first trough of belt of described driving pulley and described driven pulley annularly, described band has and is clamped between described first clamp face and is clamped in surface of contact between described second clamp face, and with the transmission of torque of described driving pulley to described driven pulley; And
Remain on the powder at least one in the surface of contact of second clamp face of first clamp face of described driving pulley, described driven pulley and described band with infusibility,
It is characterized in that described powder with infusibility is used as the material that strengthens friction at least in the contact segment of described driving pulley and described band,
Described powder has the hardness lower than the hardness of described first and second clamp faces, and at least a portion of described powder is removed by operation.
43. the vehicle that variable v-belt drive is installed,
Described variable v-belt drive comprises:
Comprise a pair of first clamp face respect to one another and be formed on the driving pulley of first trough of belt between described first clamp face, described driving pulley can be adjusted the width of described first trough of belt;
Comprise a pair of second clamp face respect to one another and be formed on the driven pulley of second trough of belt between described second clamp face, described driven pulley can be adjusted the width of described second trough of belt; And
Be wound on the band between second trough of belt of first trough of belt of described driving pulley and described driven pulley annularly, described band has and is clamped between described first clamp face and is clamped in surface of contact between described second clamp face, and with the transmission of torque of described driving pulley to described driven pulley, and
The friction layer that comprises the infusibility powder is layered in the surface of contact of second clamp face of first clamp face of described driving pulley, described driven pulley and described band at least one,
It is characterized in that described friction layer is as the material that strengthens friction at least in the contact segment of described driving pulley and described band, and described powder has the hardness lower than the hardness of described first and second clamp faces.
44. one kind according to the described vehicle that variable v-belt drive is installed of claim 43, it is characterized in that, described friction layer is at the initial stage of the operation that reaches predetermined value up to the torque that can the be delivered to band material as described enhancing friction.
45. the vehicle that variable v-belt drive is installed,
Described variable v-belt drive comprises:
Comprise a pair of first clamp face respect to one another and be formed on the driving pulley of first trough of belt between described first clamp face, described driving pulley can be adjusted the width of described first trough of belt;
Comprise a pair of second clamp face respect to one another and be formed on the driven pulley of second trough of belt between described second clamp face, described driven pulley can be adjusted the width of described second trough of belt;
Be wound on the band between second trough of belt of first trough of belt of described driving pulley and described driven pulley annularly, described band has and is clamped between described first clamp face and is clamped in surface of contact between described second clamp face, and with the transmission of torque of described driving pulley to described driven pulley; And
Be layered in the friction layer at least one in the surface of contact of second clamp face of first clamp face of described driving pulley, described driven pulley and described band, described friction layer comprises the infusibility powder,
It is characterized in that, described powder is as the material that strengthens friction at least in the contact segment of described driving pulley and described band, described powder has the hardness lower than the hardness of described first and second clamp faces, and at least a portion of described friction layer is removed by operation.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54219/2003 | 2003-02-28 | ||
| JP2003054219 | 2003-02-28 | ||
| JP369016/2003 | 2003-10-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1754052A CN1754052A (en) | 2006-03-29 |
| CN100540947C true CN100540947C (en) | 2009-09-16 |
Family
ID=36680281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800054504A Expired - Lifetime CN100540947C (en) | 2003-02-28 | 2004-02-20 | Variable v-belt drive, and belt wheel, with and the vehicle of this speed changer is housed |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100540947C (en) |
| ES (1) | ES2370393T3 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010060406A1 (en) * | 2008-11-03 | 2010-06-03 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Disk set arrangement for a chain cvt having a function-optimized disk set contour |
| CN101846165B (en) * | 2009-03-24 | 2014-07-16 | 三之星机带株式会社 | Belt transmission device |
| JP5653439B2 (en) * | 2009-09-10 | 2015-01-14 | シェフラー テクノロジーズ アクチエンゲゼルシャフト ウント コンパニー コマンディートゲゼルシャフトＳｃｈａｅｆｆｌｅｒ Ｔｅｃｈｎｏｌｏｇｉｅｓ ＡＧ ＆ Ｃｏ． ＫＧ | Pulley set assembly for chain CVT |
| WO2012105024A1 (en) * | 2011-02-03 | 2012-08-09 | トヨタ自動車株式会社 | Belt-type continuously variable transmission |
| CN114165568A (en) * | 2021-12-07 | 2022-03-11 | 浙江春风动力股份有限公司 | Continuously variable transmission, vehicle and brake control method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001295903A (en) * | 2000-04-13 | 2001-10-26 | Koyo Seiko Co Ltd | Power transmission ring and variable diameter pulley using the same |
-
2004
- 2004-02-20 ES ES04713202T patent/ES2370393T3/en not_active Expired - Lifetime
- 2004-02-20 CN CNB2004800054504A patent/CN100540947C/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001295903A (en) * | 2000-04-13 | 2001-10-26 | Koyo Seiko Co Ltd | Power transmission ring and variable diameter pulley using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1754052A (en) | 2006-03-29 |
| ES2370393T3 (en) | 2011-12-15 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20090916 |
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| CX01 | Expiry of patent term |