CN101029661A

CN101029661A - Clutch separating mechanism

Info

Publication number: CN101029661A
Application number: CNA2007100053672A
Authority: CN
Inventors: 久保田良; 内田博之
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 2006-02-27
Filing date: 2007-02-14
Publication date: 2007-09-05
Anticipated expiration: 2027-02-14
Also published as: MY151615A; JP4832110B2; JP2007231989A; CN100540932C

Abstract

A clutch separating mechanism is capable of helping to reduction of components and cost. The clutch separating mechanism comprises: a fixed cam component (46) supported by a supporting shaft (45), a rotation stopping device (53) provided between the fixed cam component (46) and a crankcase (15) for stopping the fixed cam component (46) to be rotated around the supporting shaft (45); a movable cam component (47) facing to the fixed cam component (46) and rotatablely configured coaxial with the supporting the supporting shaft (45), wherein the rotation stopping device (53) is composed of a rotation stopping shaft portion (54) and a rotation stopping hole (55a), the rotation stopping shaft portion (54) is constructed that, a part thereof and the supporting shaft (45) are bended in parallel to be integrated on a cantilever (51a) which makes the rotation stopping device (53) extend to an outside direction of a semidiameter direction of the fixed cam component (46); the rotation stopping hole (55a) is formed in an inner side of the crankcase (15) and embeded into the rotation stopping shaft portion (54).

Description

Clutch linkage

Technical field

The present invention relates to a kind of improvement of clutch linkage, this clutch linkage possesses: the stationary cam parts, and it is located at the support shaft supports in the engine crankcase; Whirl-stop device, it is arranged between these stationary cam parts and the crankcase, stops the rotation of stationary cam parts around above-mentioned supporting axle; The movable cam parts, itself and the stationary cam parts are opposed, can be rotationally and above-mentioned supporting axle arranged coaxial, these stationary cam parts and movable cam parts constitute, reciprocal rotation along with the movable cam parts, the movable cam parts move back and forth at axle direction with respect to the stationary cam parts, the movable cam parts move axially by a side's, give the clutch separation action.

Background technique

Such clutch linkage is as shown in Patent Document 1 publicity, and is well-known.

Patent Document 1: the spy opens flat 1-145427 communique.

At present, the whirl-stop device of the stationary cam parts of this clutch linkage, by by riveted joint or constituting of being weldingly fixed on the spline pin of the cantilever front end that extends to the radial direction of stationary cam parts and forming with the chimeric spline hole of above-mentioned spline pin at the crankcase inner side surface, stationary cam parts and spline pin form respectively, therefore, the part that constitutes is many, and the reduction of cost is limited.

Summary of the invention

The present invention constitutes in light of this situation, and its purpose is, a kind of clutch linkage is provided, and can help to reduce constituent part, reduces cost.

For achieving the above object, first aspect present invention provides a kind of clutch linkage, and it possesses: the stationary cam parts, and it is located at the support shaft supports in the engine crankcase; Whirl-stop device, it is arranged between these stationary cam parts and the crankcase, stops the rotation of described stationary cam parts around described supporting axle; The movable cam parts, it is relative with the stationary cam parts, can be rotationally with above-mentioned supporting axle be configured in coaxial on, constituting of these stationary cam parts and movable cam parts, reciprocal rotation along with the movable cam parts, the movable cam parts are moved back and forth at axle direction with respect to the stationary cam parts, the movable cam parts pass through to a side shaft to moving, give the clutch separation action, it is characterized in that described whirl-stop device is made of spline axial region and spline hole, wherein: the constituting of spline axial region, on the cantilever that the radial direction to the stationary cam parts extends, it is local and described supporting axle is crooked abreast and the formation one; The spline hole forms chimeric described spline axial region at the inner side surface of crankcase.

Second aspect present invention provides clutch linkage on the basis of first aspect, it is characterized in that: by the front end both side edges bending from described cantilever, and make the circular-arc a pair of protrusion tab in cross section of the mutual subtend of concave surface constitute described spline axial region.

A third aspect of the present invention first or the basis of second aspect on, clutch linkage is provided, it is characterized in that: form described spline hole at the outstanding inner peripheral surface that is arranged on the cylindrical wall of crankcase inner face, and the otch of described cantilever part is held in setting on this cylindrical wall.

According to first aspect present invention, because the spline axial region is integrally formed by its part at the front end of stationary cam parts cantilever, therefore, can be when punch process be made the stationary cam parts, the spline axial region is shaped, thereby can realize the minimizing of the constituent part of stationary cam parts, and then realize that cost reduces.

According to second aspect present invention, because by from the both sides of the edge of cantilever to side cover one side right-angle bending and make the circular-arc a pair of protrusion tab in cross section of the mutual subtend of concave surface constitute the spline axial region, so, can easily carry out a pair of protrusion tab, be the impact briquetting processing of spline axial region, simultaneously, can fully guarantee the chimeric area in spline axial region and spline hole, improve durability.

According to third aspect present invention, can avoid the cantilever of stationary cam parts and cylindrical wall to disturb, can be spline axial region integral body to protrusion tab in the embedded unification in spline hole simultaneously, can guarantee the chimeric area in spline axial region and spline hole significantly.

Description of drawings

Fig. 1 is the side view of the two-wheeled motorcycle of expression first embodiment of the invention;

Fig. 2 is the amplification profile of the clutch periphery in the same two-wheeled motorcycle motor;

Fig. 3 is the enlarged view of Fig. 2 separating mechanism portion;

Fig. 4 is the sectional view of the 4-4 line of Fig. 3;

Fig. 5 is the sectional view of the 5-5 line of Fig. 4;

Fig. 6 is that the 6-6 line of Fig. 3 is analysed and observe drawing, when (A) representing clutch, and the phase diagram when (B) representing clutch separation;

Fig. 7 represents the figure corresponding with Fig. 3 of second embodiment of the invention;

Fig. 8 is the 8-8 line sectional view of Fig. 7.

Symbol description

The E motor

15 crankcases

24 clutches

44 separating mechanisms

45 supporting axles

46 stationary cam parts

47 movable cam parts

53 whirl-stop devices

54 spline axial regions

The 54a protrusion tab

55 cylindrical walls

55a spline hole

62 otch

Embodiment

Below, with reference to preferred embodiment shown in the drawings, embodiments of the present invention are described.

Fig. 1 is the side view of the two-wheeled motorcycle of expression first embodiment of the invention, Fig. 2 is the amplification profile with two-wheeled motorcycle engine clutch periphery, Fig. 3 is the enlarged view of the separating mechanism portion of Fig. 2, Fig. 4 is the 4-4 line sectional view of Fig. 3, Fig. 5 is the 5-5 line sectional view of Fig. 4, Fig. 6 is the 6-6 line sectional plane of Fig. 3, when (A) representing clutch, phase diagram when (B) representing clutch separation, Fig. 7 represents the figure corresponding with Fig. 3 of second embodiment of the invention, and Fig. 8 is the 8-8 line sectional view of Fig. 7.

At first, describe from Fig. 1～first embodiment of the present invention shown in Figure 6.

Among Fig. 1, the vehicle frame F of two-wheeled motorcycle M is made of a tubulose main frame portion 2, pivot suspension structural portion 3, pairing left and right seat rail portion 4,4, and wherein: from the beginning main frame portion 2 manages 1 and tilt to the rear lower side; Pivot suspension structural portion 3 is extended downwards from the rear end of this main frame portion 2; Seat rail 4,4 is combined in the rearward end of this pivot suspension structural portion 3 and main frame portion 2 and extends to the back upper place, manages the deflecting bar 6a that the front fork 6 of front-wheel 5f is supported in 1 supporting by this, connects in the upper end of this deflecting bar 6a to turn to 7.Fixedly install pivot 9 on pivot suspension structural portion 3, thus, the back vent 8 of axle supporting wheels 5r is swung up and down supporting freely.Between this back vent 8 and seat rail 4,4, be provided with rear shock absorber 12.

The motor E that is positioned at front-wheel 5f and trailing wheel 5r neutral position is installed on main frame portion 2 and the pivot suspension structural portion 3, and the power of this motor E is delivered to trailing wheel 5r by chain device 11.

On framework of body F, install to cover the vehicle body cover 16 of the cylinder portion of itself and motor E, connect at the front end of this framework of body a pair of barge board 17 is set.

In addition, be used for the variable-speed shaft 20 of its inner gear-shift transmission of conversion, from the outstanding outer end of the left surface of crankcase 15 gear shift pedal 21 be installed at this variable-speed shaft 20 at crankcase 15 upper supports of motor E.

As shown in Figure 2, crankcase 15 is made of main box body 15a and side cover 15b, and wherein: main box body 15a rotates the input shaft 19 and the output shaft (not shown) of bent axle of supporting engine (not shown) freely and gear-shift transmission; Side cover 15b discretely bolt be connected this main box body 15a the right side, and main box body 15a between form clutch chamber 22.Accommodate in the clutch chamber 22 in the elementary train of reduction gears 23 of described bent axle and 19 configurations of input shaft and control from the clutch 24 of this elementary train of reduction gears 23 to the transmission of power of input shaft 19.In addition, support described variable-speed shaft 20 freely by main box body 15a and side cover 15b rotation.

The driven gear 23a of elementary train of reduction gears 23 rotates the gear that is bearing in freely on the input shaft 19 by needle bearing 25, described clutch 24 possesses: the outer clutch race 30 of round-ended cylinder shape, and it is connected the side of this driven gear 23a via rubber shock absorber 26; Clutch inner race 33, it is configured in this outer clutch race 30, and is chimeric with input shaft 19 splines, simultaneously fastening by nut 41; Active friction plate 31, spline is chimeric slidably that multi-disc arranged at the inner circle wall of outer clutch race 30 for it One or more pieces are from movable friction plate 32, itself and these active friction plate 31 ... alternately overlapping, simultaneously, spline is chimeric slidably in the periphery of clutch inner race 33; By dynamic pressure plate 34, its one is connected with on outer clutch race 33, with outermost active friction plate 31 ... in abutting connection with configuration, simultaneously, can combine with clutch inner race 33 splines slidably vertically; Pressing plate 35 initiatively, itself and the active friction plate 31 of inner side ... in abutting connection with configuration.On this active pressing plate 35, be formed with and connect a plurality of through holes 36 of being located on the clutch inner race 33 ... (only show one of them among the figure.) a plurality of connection boss 37 ... (only show one of them among the figure.), separating plate 38 is fixed on the end face that these connect boss 37 by bolt 39, compression is provided with clutch spring 40 between this separating plate 38 and clutch inner race 33, and these clutch spring 40 performances are pressed to active pressing plate 35 by the elastic force of dynamic pressure plate 34 sides by separating plate 38.

And, at separating plate 38 freely under the state, initiatively pressing plate 35 is by the impacting force of clutch spring 40, to pushing active friction plate 31 from dynamic pressure plate 34 ... and from 32 groups of movable friction plates ... thereby, active friction plate 31 ... and from 32 groups of movable friction plates ... compress mutually, be connected between outer clutch race 30 and the clutch inner race 33, clutch 24 is in jointing state, can be by elementary train of reduction gears 23 with the transmission of power of bent axle to input shaft 19.In addition, if the impacting force that separating plate 38 is resisted clutch spring 40, make active pressing plate 35 from active friction plate 31 ... and from 32 groups of movable friction plates ... retreat, then active friction plate 31 ... and from 32 groups of movable friction plates ... be in free state mutually, remove the connection of outer clutch race 30 between clutch inner race 33, thereby make clutch 24 be in separated state, can cut off from the transmission of power of elementary train of reduction gears 23 to input shaft 19.

Among Fig. 3, link separating mechanism 44 on described separating plate 38, wherein separating mechanism 44 can make separating plate 38 move to the direction that clutch 24 separates by the rotation of variable-speed shaft 20 regulations.This separating mechanism 44 possesses: be bearing in the supporting axle 45 that side cover 15b goes up and can rotate with input shaft 19 is coaxial; In clutch chamber 22, be bearing in the stationary cam parts 46 on this supporting axle 45; On these stationary cam parts 46, can relatively rotate the opposed movable cam parts 47 in ground; For making these movable cam parts 47 rotate the clutch shaft 48 that combines with variable-speed shaft 20 splines.

Above-mentioned supporting axle 45 have on the wheel hub described later 50 that is screwed on movable cam parts 47 adjusting thread spindle 45a and with the bead 45b of side cover 15b inner face butt, this supporting axle 45 is usually by screwing togather locking locking nut 49 and be fixed on the side cover 15b being projected into outer end outside the side cover 15b.

Stationary cam parts 46 by screw togather the wheel hub 50 of supporting with above-mentioned adjusting screw spindle part 45a and in the periphery of this hub portion 50 by riveted joint or weld fastening stationary cam plate 51 and constitute.Stationary cam plate 51 one have the cantilever 51a that extends from its periphery along radial direction, and the whirl-stop device 53 of prevention around supporting axle 45 rotations of stationary cam parts 46 is set between this cantilever 51a and side cover 15b.This whirl-stop device 53 is by spline axial region 54 and have end to change hole 55a to constitute, wherein, the front end of spline axial region 54 by cantilever 51a local integrally formed, parallel with supporting

axle

45,15b is side-prominent to side cover; There is end to change the madial wall that hole 55a is formed at side cover 15b, so that this spline axial region 54 can be chimeric slidably.

As Fig. 3～shown in Figure 5, above-mentioned spline hole 55a is formed by the inner face at the outstanding cylindrical wall 55 that is provided with of side cover 15b inwall one.On the other hand, spline axial region 54 is integrally formed by its part at the front end of cantilever 51a, it is desirable to especially, by from the both sides of the edge of cantilever 51a to side cover 15b side right-angle bending and make concave surface mutually relative circular-arc a pair of tab 54a, the 54a in cross section constitute.At this moment,

tab

54a, 54a form when making stationary cam plate 51 by punch process by a block plate simultaneously.

Movable cam plate member 47 constitutes by the wheel hub 52h that rotates supporting freely at the outer circumferential face of above-mentioned wheel hub 50 with at the movable cam plate 52 that the end one of this wheel hub 52h is connected with, and in the periphery of this wheel hub 52h, is connected with above-mentioned separating plate 38 by release bearing 61.

Stationary cam plate 51 and movable cam plate 52 have a plurality of cam recess 51b that along the circumferential direction uniformly-spaced arrange at their subtend face ... 52b ... the ball 56 that configuration is kept by retainer 57 between cam recess 51b, the 52b of each subtend compresses between retainer 57 and stationary cam plate 51 spring 58 is set for these balls 56 being pressed to movable cam plate 52 1 sides simultaneously.

Movable cam plate 52 one possess the cantilever 52a that extends from its periphery along radial direction, and engaging is by the roller 48a of the front end axle of above-mentioned clutch lever 48 supporting in the slotted hole 60 that forms on this cantilever 52a.

The known middle return mechanism 42 that variable-speed shaft 20 is pushed to the neutral position is set between variable-speed shaft 20 and main box body 15a.In addition, variable-speed shaft 20 is connected with the known gear (not shown) that gear-shift transmission carries out speed change.

Below, first embodiment's effect is described.

Remain at variable-speed shaft 20 under the state of neutral position, movable cam parts 47 are shown in Fig. 6 (A), make the cam recess 51b of himself just relative with the cam recess 52b of stationary cam parts 46, by corresponding ball 56 degree of depth are housed in cam recess 51b, the 52b, make it occupy position, discharge separating plate 38 near stationary cam parts 46 sides.Consequently, because active pressing plate 35 passes through the tight power of signature of clutch spring 40 with active friction plate 31 ... and press to by dynamic pressure plate 34 sides from movable friction plate group 32, so clutch 24 is in bonding state.

Under this state, if unclamp locking nut 49 supporting axle 45 is rotated, then adjust screw spindle part 45a and can comply with its sense of rotation, movable cam parts 47 are axially advanced and retreat, and can suitably regulate cam recess 51b, the 52b of two

cam parts

46,47 and the gap between the ball 56.At this moment, because the spline axial region 54 of stationary cam parts 46 slides, therefore, can not hinder stationary cam parts 46 moving axially in the 55a of the spline hole of side cover 15b.

Now, for making gear-shift transmission carry out one grade of speed change, when gear shift pedal 21 during from stroke of neutral rotated position, at first, rotate front half part by this gear shift pedal 21, clutch shaft 48 makes movable cam parts 47 rotate by the arrow shown in Fig. 6 (B), thereupon, ball 56 rolls and moves on to two

cam parts

46,47 cam recess 51b, the inclined-plane of 52b, thus, owing to make movable cam parts 47 to the direction of leaving from stationary cam parts 46, be that separating plate one side pressure is moving, so this presses via release spring 61, separating plate 38 is delivered to initiatively pressing plate 35, resist the impacting force of clutch spring 40 and make this active pressing plate 35 from active friction plate 31 ... and retreat from movable friction plate group 32, make clutch 24 be in separated state.

When the rotation of variable-speed shaft 20 enters into latter half part, under the separated state of keeping this clutch 24, the gear action, gear-shift transmission carries out one grade of speed change.

Thereafter, when making variable-speed shaft 20 return to the neutral position by middle return mechanism 42, movable cam parts 47 recover action to original state, thereupon, by the reaction force of clutch spring 40, separating plate 38 and active pressing plate 35 also restore to the original state, simultaneously, initiatively pressing plate 35 is once more with active friction plate 31 ... with press to by dynamic pressure plate 34 1 sides from 32 groups of movable friction plates, therefore, clutch 24 is in jointing state.

Therebetween, the spline axial region 54 of stationary cam parts 46 is entrenched in the spline hole 55a of side cover 15b, stop rotating of movable cam parts 47 around supporting axle 45, therefore, can guarantee to make two

cam parts

46,47 to relatively rotate, and can guarantee the separation and the joint action of the clutch 24 of relative separation mechanism 44.

But, above-mentioned spline axial region 54 as previously mentioned, front end at cantilever 51a is integrally formed by a part wherein, so can make stationary cam plate 51 simultaneously in punch process, form spline axial region 54, thereby can realize the minimizing of the constituent part of stationary cam parts 46, and then reduce cost.

At this moment, it is desirable to especially, by from the both sides of the edge of cantilever 51a to side cover 15b side right-angle bending and make concave surface mutually relative circular-arc a pair of protrusion tab 54a, the 54a in cross section constitute spline axial region 54, thus, can carry out a pair of

protrusion tab

54a, 54a easily is the impact briquetting processing of spline axial region 54, simultaneously, can fully guarantee spline axial region 54 and chimeric area spline hole 55a, thereby can improve durability.

Below, to describing as Fig. 7 and second embodiment shown in Figure 8.

In this second embodiment, form the otch 62 that the side of spline hole 55a is open, the part that in this otch 62, holds the cantilever 51a of stationary cam plate 51 in the part of the cylindrical wall 55 of side cover 15b inwall.Because other structures are identical with the above embodiments, so, among Fig. 7 and Fig. 8 and the part of preceding embodiment's correspondence use same reference symbol, the repetitive description thereof will be omitted.

According to second embodiment, can avoid the interference of the cantilever 51a and the cylindrical wall 55 of stationary cam plate 51, simultaneously, can be the spline axial region 54 whole spline hole 55a that embed with a pair of

protrusion tab

54a, 54a, in, thereby can guarantee spline axial region 54 and chimeric area spline hole 55a significantly.

Embodiments of the invention more than have been described, but have the invention is not restricted to the foregoing description, in not exceeding aim scope of the present invention, can carry out various design alterations.

Claims

1, a kind of clutch linkage, it possesses: stationary cam parts (46), it is located at interior supporting axle (45) supporting of crankcase (15) of motor (E); Whirl-stop device (53), it is arranged between these stationary cam parts (46) and the crankcase (15), stops the rotation of stationary cam parts (46) around described supporting axle (45); Movable cam parts (47), itself and stationary cam parts (46) subtend, can be rotationally with described supporting axle (45) be configured in coaxial on, constituting of these stationary cam parts (46) and movable cam parts (47), reciprocal rotation along with movable cam parts (47), movable cam parts (47) are moved back and forth at axle direction with respect to stationary cam parts (46), movable cam parts (47) by to a side shaft to moving, give clutch (24) separating action, it is characterized in that:

Described whirl-stop device (53) is made of spline axial region (54) and spline hole (55a), wherein: the constituting of these spline axial region (54), on the cantilever (51a) that extends to the radial direction foreign side of stationary cam parts (46), its part forms one with the parallel bending of described supporting axle (45); This spline hole (55a) forms chimeric described spline axial region (54) at the inner side surface of crankcase (15).

2, clutch linkage as claimed in claim 1 is characterized in that: by the front end both side edges bending from described cantilever (51a), and make the circular-arc a pair of protrusion tab (54a, 54a) in cross section of the mutual subtend of concave surface constitute described spline axial region (54).

3, clutch linkage as claimed in claim 1 or 2, it is characterized in that: form described spline hole (55a) at the outstanding inner peripheral surface that is arranged on the cylindrical wall (55) of crankcase (15) inner face, and go up setting at this cylindrical wall (55) and hold the local otch (62) of described cantilever (51a).