CN1955020A - Wheel and automotive two-wheel vehicle with the same - Google Patents
Wheel and automotive two-wheel vehicle with the same Download PDFInfo
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- CN1955020A CN1955020A CN 200610154062 CN200610154062A CN1955020A CN 1955020 A CN1955020 A CN 1955020A CN 200610154062 CN200610154062 CN 200610154062 CN 200610154062 A CN200610154062 A CN 200610154062A CN 1955020 A CN1955020 A CN 1955020A
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- axle sleeve
- hub portion
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Abstract
The present invention provides a wheel capable of preventing noise by simple structure and motorcycle having the wheel. The wheel comprises a wheel hub part(14b)made of light alloy and a shaft lining(18)breaking through the axle(13), wherein the shaft lining is made of metal having a strength higher than light alloy and is arranged on the axle center of the wheel hub part(14b)by casting, and turning effort transfers between the axle(13)and the wheel hub part(14b)by the shaft lining(18), wherein a friction coefficient lowering layer(19)is provided between the shaft lining(18)and the wheel hub part(14b)and is used for lowering the static friction coefficient between the shaft lining(18)and the wheel hub part(14b)formed by casting.
Description
Technical field
The present invention relates to wheel and have the two-wheeled of this wheel, more particularly, the present invention relates to the wheel made of light alloy that the propulsive effort of driving engine transmits via axletree.
Background technology
The wheel that has following type in two-wheeled, that is, engine drive power is delivered on the wheel via axletree, and the turning effort during engine brake operation is delivered to via axletree from wheel and starts pusher side.This two-wheeled in, when above-mentioned wheel is made by light alloy, have following situation: by axle sleeve made of iron being cast in the axle center of wheel nave portion, with the axletree spline fitted to this axle sleeve, thereby bear the transmission (for example with reference to patent documentation 1) of engine drive power etc.And when above-mentioned casting operation, generally adopt so-called gravitational casting: under the state that above-mentioned iron axle sleeve is set on the wheel usefulness axle center of mold, by gravity is cast to liquation in this mold.
Patent documentation 1: specially permit communique No. 3232380
But, in having above-mentioned existing wheel made of light alloy two-wheeled, if when starting etc. open the throttle wide, then produce very big engine drive power, thereby have near the problem that produces different sound the axle center of wheel.
Present inventors etc. study the mechanism that produces above-mentioned different sound, draw following conclusion.When being cast to iron axle sleeve on the cast light-alloy wheel, in order to ensure the adaptation of iron axle sleeve and light alloy, the iron axle sleeve is preheating to about 500 ℃, under this state, adopt the integrally casting method.Form oxide skin (casting skin) by above-mentioned preheating on the surface of iron axle sleeve, above-mentioned integrally casting generally is a gravitational casting and liquation not being exerted pressure, and therefore the intersection at light alloy system hub portion and iron axle sleeve produces minim gap inevitably.Therefore, in a single day axle sleeve and hub portion are not enough because of the binding force that casting is produced, so apply bigger turning efforts such as engine drive power, then produce between axle sleeve and hub portion relatively move (dislocation).If this dislocation situation is observed in more detail, find that then axle sleeve and hub portion are born turning effort by static friction force before the size of above-mentioned turning effort reaches to a certain degree, can not produce dislocation.But, in case the size of above-mentioned turning effort surpasses to a certain degree, then axle sleeve and hub portion can not be born turning effort and be become the dynamic friction state, but the energy of being put aside under above-mentioned static friction state discharges when being converted to dynamic friction together, so produce bigger sound.
Therefore, in order to prevent to produce above-mentioned different sound, following method is very effective,, fully increases the coefficient of static friction between axle sleeve and the hub portion when carrying out above-mentioned casting that is, or reduces by above-mentioned turning effort and act on power on the boundary of axle sleeve and hub portion.But,, then be difficult to fully increase above-mentioned coefficient of static friction as long as on above-mentioned axle sleeve surface, form above-mentioned oxide skin and minim gap.On the other hand, the power that acts on the above-mentioned boundary be reduced, the diameter of axle sleeve can be increased.But the diametrically that increases axle sleeve also is restricted.Particularly,, do not increase the axle sleeve diameter, then be difficult to guarantee the assembly space of drum brake mechanism if do not change the diameter of hub portion for for the wheel that the drum brake mechanism type is set in the hub portion.
Summary of the invention
In view of the above problems, propose the present invention, the purpose of this invention is to provide and a kind ofly can prevent to produce the wheel of above-mentioned different sound and have the two-wheeled of this wheel by simple structure.
The present invention is a kind of wheel, comprise light alloy system hub portion and the axle sleeve that runs through axletree, this axle sleeve is higher than the metal manufacturing of light alloy by intensity, and be arranged on by casting on the axle center of above-mentioned hub portion, turning effort is transmitted via above-mentioned axle sleeve between above-mentioned axletree and hub portion, it is characterized in that, between above-mentioned axle sleeve and hub portion, be provided with to be used to reduce and above-mentionedly water the axle sleeve that casts out and the friction coefficient of the coefficient of static friction between the hub portion reduces layer.
The invention effect
According to the present invention, because between above-mentioned axle sleeve and hub portion, be provided with to be used to reduce and above-mentionedly water the axle sleeve that casts out and the friction coefficient of the coefficient of static friction between the hub portion reduces layer, thereby hour in engine drive power or turning effort that engine brake force produced, between above-mentioned axle sleeve and hub portion, promptly produce slide (dislocation), and can not accumulate big energy under the static friction state as existing wheel, thereby the situation that big energy discharges together can not appear.Thus, can prevent or alleviate the generation of different sound.
Description of drawings
Fig. 1 is the two-wheeled left side view of one embodiment of the invention;
Fig. 2 is the cross-sectional rear view of the two-wheeled trailing wheel of the foregoing description;
Fig. 3 is the lateral plan of above-mentioned trailing wheel with wheel;
Fig. 4 is the cross-sectional rear view of above-mentioned wheel;
Fig. 5 is the lateral plan of above-mentioned wheel with axle sleeve;
Fig. 6 is the cross-sectional rear view of above-mentioned axle sleeve;
Fig. 7 is the scheme drawing that is used to illustrate the action effect of the foregoing description.
The specific embodiment
Hereinafter will describe embodiments of the invention with reference to the accompanying drawings.
Fig. 1～Fig. 7 is the view that is used to illustrate one embodiment of the invention.In these figure, 1 expression has wheel two-wheeled of present embodiment.This two-wheeled 1 has following structure.Front fork 3 is supported by the head pipe 2a of the front end of vehicle body frame 2, and can about freely turn to; At the lower end of front fork 3 axle bearing front-wheel 4, steering tiller 5 is installed in the top.In addition, with the top of lift-launchs such as fuel tank 6, seat 7, baggage rack 8 at above-mentioned vehicle body frame 2.
Driving engine 9 suspensions are supported on the central lower of above-mentioned vehicle body frame 2.Postbrachium 10 can be supported on the rear side of this driving engine 9 with swinging up and down.This postbrachium 10 is supported on trailing wheel 11 between the rearward end of left and right arms main body 10a, 10b by hind axle 13 with the leading section of hinge portion connection left and right arms main body 10a, 10b.
On the arm main body 10a in above-mentioned postbrachium 10 left sides part, be provided with chain guard 12.The rotation of the output shaft of above-mentioned driving engine 9 is passed on the hind axle 13 via the chain and the driven sprocket that are arranged in the chain guard 12 from drive sprocket, and the rotation of this hind axle 13 is passed to trailing wheel 11.In addition, above-mentioned hind axle 13 is supported by bearing 16 by above-mentioned postbrachium 10 free to rotately.
Above-mentioned trailing wheel 11 comprises wheel 14 and is installed in tire 15 on the drop center portion 14a of this wheel 14.Above-mentioned wheel 14 is by the aluminum alloy manufacturing, with constitute peripheral part above-mentioned drop center portion 14a, constitute the hub portion 14b of axle center part and connect this hub portion 14b and a plurality of disc portion 14c integrally castings of drop center portion 14a and make wheel 14, promptly so-called casting wheel.
Above-mentioned hub portion 14b forms has the bowl-shape of surrounding wall portion 14d and bottom wall portion 14e, and drum brake system 17 is arranged on this hub portion 14b.This brake equipment 17 has: the arrester cover 17a that stops up the aluminum alloy system that the opening ground of above-mentioned hub portion 14b is provided with; Can be that center deployment is supported on a pair of brake shoe brake cheek 17b, the 17b on this arrester cover 17a with shrinking with supporting pin 17e; The brake shoe expander 17c that this brake shoe brake cheek 17b is launched; And cast in brake wheel 17d made of iron on the inner peripheral surface of above-mentioned surrounding wall portion 14d.When chaufeur was trampled brake pedal, it was center deployment with supporting pin 17e that then above-mentioned brake shoe expander 17c makes above-mentioned brake shoe brake cheek 17b, the inner peripheral surface crimping of this brake shoe brake cheek 17b and above-mentioned brake wheel 17d and produce braking force.
On the axle center of the bottom wall portion 14e of above-mentioned hub portion 14b, extend the integrally formed barrel-contoured flange portion 14f in ground to above-mentioned arrester cover 17a one side.Axle sleeve 18 made of iron is cast on the axle center of above-mentioned flange portion 14f.This axle sleeve 18 is forging and molding spares, a plurality of flank 18c that have barrel-contoured axle sleeve main body 18a, are formed on the 18b of annular flange portion on this axle sleeve main body 18a outer peripheral face and connect the outer peripheral face of ring-type flange portion 18b and axle sleeve main body 18a.Formed spline tooth on the inner peripheral surface of above-mentioned axle sleeve main body 18a, this spline tooth cooperates with spline tooth on the outer peripheral face that is formed on above-mentioned hind axle 13.
Be to have formed the zinc oxide film 19 that the performance friction coefficient reduces layer function on the whole outer peripheral face of axle sleeve 18 at the intersection of the flange portion 14f of above-mentioned axle sleeve 18 and above-mentioned wheel 14.This zinc oxide film 19 is made of the zinc oxide powdery body that the zinc coating oxidation is formed.
The following describes the manufacture method of the wheel 14 of present embodiment.This manufacture method comprises: the friction coefficient of above-mentioned axle sleeve 18 being implemented to be used to reduce coefficient of static friction reduces the pretreatment procedure of handling; This axle sleeve 18 is preheating to the preheating procedure of set point of temperature; With the axle sleeve after this preheating 18 is arranged on the axle center part of mold, liquation is cast in casting operation in this mold.
More particularly, above-mentioned axle sleeve 18 before being cast on the wheel 14, forms zinc coating by existing known technologies such as plating on its whole outer surface.Then, before the axle sleeve 18 that will have zinc coating is cast on the wheel 14, be heated the preheating temperature (for example 500 ℃) of regulation.By this preheating procedure, above-mentioned zinc coating becomes the zinc oxide film of forming by the zinc oxide powdery body that the zinc oxidation is formed.Then, the axle sleeve after the preheating 18 is arranged on the axle center part of mold of wheel 14, and above-mentioned brake wheel 17d and axle sleeve 18 be arranged in the above-mentioned mold coaxially, the aluminum metal liquation is cast in this mold.
Thus, produce above-mentioned brake wheel 17d is cast on the inner peripheral surface of surrounding wall portion 14d of above-mentioned hub portion 14b, and above-mentioned axle sleeve 18 is cast to wheel 14 on the axle center part of above-mentioned flange portion 14f.In addition, behind casting operation, the inner peripheral surface of above-mentioned brake wheel 17d is implemented processing, and axle sleeve 18 is implemented spline processing.
In the present embodiment, because intersection in above-mentioned axle sleeve 18 and hub portion 14, be provided with and be used to reduce the zinc oxide film 19 that axle sleeve 18 is cast to hub portion 14b coefficient of static friction between axle sleeve 18 and the hub portion 14b when going up, so when producing very big turning effort by engine drive power or engine brake force, can prevent or be suppressed near the problem that produces different sound the above-mentioned hub portion 14b.
Fig. 7 is used for illustrating that present embodiment can prevent or suppress to produce the view of the reason of different sound, the relation between the elapsed time when expression produces the regulation turning effort and the size of dislocation.
Fig. 7 (a) schematically shows the dislocation that has now in the wheel, and a situation arises.In existing wheel, even when the turning effort that applies because of engine drive power etc. more than the specified value, (putting and a) also can not produce dislocation before through specified time, during this period, the energy that turning effort produced is accumulated, when through specified time, from the static friction state exchange is the dynamic friction state, in this moment, the above-mentioned energy of accumulating is discharged together, thereby produces different sound.
On the other hand, in the present embodiment, shown in Fig. 7 (b), if because of the turning effort of generations such as engine drive power increases, then from the moment (some c) through the short period, slowly produce dislocation, and when producing backward rotation power, also be slowly to diminish, thereby the energy of accumulating is not too large from beginning dislocation than moment d early, do not discharged together so huge energy can not occur, can not produced the generation that different sound maybe can suppress different sound.
At this moment, the zinc oxide film of present embodiment (friction coefficient reduces layer) 19 can show as relative motion and allow layer, promptly in above-mentioned turning effort during more than or equal to specified value, allow above-mentioned axle sleeve 18 and hub portion 14b to overcome the binding force that produces because of casting between the two, and roughly relatively move pro rata with above-mentioned turning effort (with reference to Fig. 7 (d)).
As mentioned above, in the present embodiment, can prevent or be suppressed near the different sound of the generation wheel nave portion.At this moment, need not to deal with the problem of the coefficient of static friction that is difficult to fully to increase axle sleeve 18 and hub portion 14b, and need not to increase the diameter of axle sleeve.Like this, owing to need not to increase the diameter of axle sleeve, therefore can not produce the problem that the space is set that is difficult in hub portion, guarantee drum brake system.
And, in the above-described embodiments, though on the whole outer surface of axle sleeve 18, formed the zinc oxide film 19 that reduces layer as friction coefficient, but this friction coefficient reduces layer and also can be formed at least by above-mentioned turning effort and make on the face that relatively moves that the flange portion 14f of axle sleeve 18 and hub portion relatively moves, in Fig. 6, for example be formed on the outside face of axle sleeve main body 18a of axle sleeve 18.
And the friction coefficient among the present invention reduces layer and is not limited to zinc oxide film, for example also can adopt the friction coefficient that has lubricating function after axle sleeve 18 is cast preceding and preheating to reduce layer.And, in other words, reduce layer as above-mentioned friction coefficient, can by the metal that combines with oxygen easily under the preheating hot conditions before casting for example nickel, chromium constitute, formation epithelium shape for example can adopt plated film or sputtered films of bismuth etc.
And, in the present embodiment, though the casting wheel to integrally casting drop center portion, disc portion and hub portion is illustrated, but the present invention also goes for the wheel that hub portion is at least made by light alloy, also goes for the so-called radial wheel that ring-type wheel rim and wheel hub link to each other with spoke.
In addition, in the above-described embodiments, although understand to have the situation of drum brake system, but self-evident, the present invention also is applicable to the wheel with disc brake apparatus.
Claims (10)
1. wheel, the hub portion and the axle sleeve that runs through axletree that comprise light alloy system, described axle sleeve is higher than the metal manufacturing of light alloy by intensity, and be arranged on by casting on the axle center of described hub portion, turning effort is transmitted via described axle sleeve between described axletree and hub portion, it is characterized in that
Between described axle sleeve and hub portion, be provided with friction coefficient and reduce layer, be used to reduce the described axle sleeve that casts out and the coefficient of static friction between the hub portion of watering.
2. wheel according to claim 1 is characterized in that, forms described friction coefficient at least and reduce layer on the face that relatively moves that described axle sleeve and hub portion are relatively moved.
3. wheel according to claim 1 is characterized in that, described friction coefficient reduces layer before described axle sleeve casting, have lubricating function after the preheating.
4. wheel according to claim 1 is characterized in that, described friction coefficient reduces layer and is made of the metal that combines with oxygen easily under hot conditions.
5. wheel according to claim 4 is characterized in that, described friction coefficient reduces layer and forms the epithelium shape.
6. wheel according to claim 5 is characterized in that, described friction coefficient reduces layer and is made of plated film.
7. wheel according to claim 6 is characterized in that, described metal is zinc, nickel or chromium.
8. wheel, the hub portion and the axle sleeve that runs through axletree that comprise light alloy system, described axle sleeve is higher than the metal manufacturing of light alloy by intensity, and be arranged on by casting on the axle center of described hub portion, turning effort is transmitted via described axle sleeve between described axletree and hub portion, it is characterized in that
Being provided with between described axle sleeve and hub portion relatively moves allows layer, when described turning effort during more than or equal to specified value, allow this axle sleeve and hub portion to overcome the binding force that produces because of casting between the two, and relatively move and the roughly proportional amount of described turning effort.
9. the manufacture method of a wheel, this wheel comprises the hub portion of light alloy system and runs through the axle sleeve of axletree, this axle sleeve is higher than the metal manufacturing of light alloy by intensity, and be arranged on by casting on the axle center of described hub portion, turning effort is transmitted via described axle sleeve between described axletree and hub portion, it is characterized in that
Comprise: described axle sleeve is implemented to be used to reduce describedly water the axle sleeve that casts out and the friction coefficient of the coefficient of static friction between the hub portion reduces the pretreatment procedure of handling; With this axle sleeve is arranged in the mold, implement the casting operation of described casting operation.
10. one kind comprises the two-wheeled of each described wheel in the claim 1～8.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005308780 | 2005-10-24 | ||
| JP2005308780A JP2007112387A (en) | 2005-10-24 | 2005-10-24 | Wheel, and motorcycle having the wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1955020A true CN1955020A (en) | 2007-05-02 |
Family
ID=38062655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610154062 Pending CN1955020A (en) | 2005-10-24 | 2006-09-22 | Wheel and automotive two-wheel vehicle with the same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2007112387A (en) |
| CN (1) | CN1955020A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014221627A (en) * | 2013-05-14 | 2014-11-27 | 本田技研工業株式会社 | Wheel structure and motorcycle provided with the same |
| JP5997744B2 (en) * | 2014-09-29 | 2016-09-28 | 本田技研工業株式会社 | wheel |
| JP6043336B2 (en) * | 2014-12-26 | 2016-12-14 | 本田技研工業株式会社 | Wheels and motorcycles |
| CN104608558A (en) * | 2015-02-02 | 2015-05-13 | 陈焕祥 | Transmission device for motorcycle |
-
2005
- 2005-10-24 JP JP2005308780A patent/JP2007112387A/en not_active Withdrawn
-
2006
- 2006-09-22 CN CN 200610154062 patent/CN1955020A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007112387A (en) | 2007-05-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |