CN102192042A - Assembling structure for sleeve part - Google Patents
Assembling structure for sleeve part Download PDFInfo
- Publication number
- CN102192042A CN102192042A CN2011100379442A CN201110037944A CN102192042A CN 102192042 A CN102192042 A CN 102192042A CN 2011100379442 A CN2011100379442 A CN 2011100379442A CN 201110037944 A CN201110037944 A CN 201110037944A CN 102192042 A CN102192042 A CN 102192042A
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- bearing
- bent axle
- protuberance
- assembly
- face
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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Gears, Cams (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses an assembling structure for a sleeve part, wherein an assembling error can be easily confirmed while embedding the sleeve part in the set position of a rotating shaft. In the assembling structure of the sleeve part, the rotating shaft (20) is supported in a bearing hole of the bearing wall of the structure body by a shaft neck part (a1); and the sleeve part (25), forming a diameter enlarging part (25t) by partially protruding towards a side of central axis direction on the outer circumference of a cylinder part (25c) is embedded with the rotating shaft (20), wherein the sleeve part (25) is embedded in the rotating shaft (20) in the case that the reverse expanding part side end surface (25i) at the offset side of an expanding part (25t) of the cylinder part (25c) is towards the bearing wall, and fixed by propping against a step (a2) of the rotating shaft (20); and provided with a bump (100) by protruding on a bearing hole end surface (11s) in a set gap width (C) with the expanding part (25t).
Description
Technical field
The present invention relates to a kind of package assembly that embeds the collar tube sub-assembly of running shaft.
Background technique
Has mounting sleeve examples of members in sprocket wheel, the wide diameter portion (for example, with reference to patent documentation 1) that this collar tube sub-assembly is put in the outstanding lateral deviation that forms oriented central axis direction of the outer circumferential face of the cylindrical part that embeds running shaft.
[patent documentation 1] (Japan) special permission No. 4322585 communique (with reference to Fig. 2)
Disclose the structure of chimeric driving sprocket wheel on the bent axle of internal-combustion engine in patent documentation 1, volume hangs with the chain to moving valve system transferring power on this driving sprocket wheel.
On this driving sprocket wheel, the lateral deviation to central axis direction on the periphery of the cylindrical part that embeds bent axle is formed with the sprocket tooth that is equivalent to wide diameter portion with putting.
Bent axle has stepped part and one side by undergauge at assigned position, and driving sprocket wheel is embedded this diameter reducing part, and the end of the side that the sprocket tooth of cylindrical part is setovered is connected to stepped part and fixes.
Volume hangs with chain on the sprocket tooth of the driving sprocket wheel of the assigned position that is fixed on this bent axle.
Therefore, the sprocket tooth of driving sprocket wheel must be positioned at the axial position of regulation with respect to bent axle.
Therefore, when driving sprocket wheel is embedded bent axle, need elder generation that the end of the sprocket tooth biasing side of cylindrical part is embedded bent axle.
If wrong will embed bent axle earlier with the end of the opposition side of the sprocket tooth biasing side of cylindrical part, then the axial position with respect to the sprocket tooth of bent axle can depart from assigned position, can not correctly roll up the chaining bar.
Except driving sprocket wheel embeds bent axle, the volume extension of chain is to carry out after the assembling of other parts is all finished, therefore, when volume chaining bar, if find that driving sprocket wheel is assembled mistakenly, then assembling all must be dismantled and assembled once more, therefore, will need considerable labour and time.
Under the situation of above-mentioned patent documentation 1, when driving sprocket wheel was embedded into the assigned position of bent axle, owing to do not confirm the sign of the axial position of sprocket tooth simply, therefore, the possibility of mistake assembling was very big.
Summary of the invention
The present invention makes in view of the above problems, and it is a kind of when collar tube sub-assembly is embedded the assigned position of running shaft that its purpose is to provide, and whether can confirm the package assembly of the collar tube sub-assembly of error group dress simply.
In order to achieve the above object, the invention that first aspect is put down in writing, the package assembly of this collar tube sub-assembly, running shaft is bearing in the bearing hole of the bearing wall of structure freely by the collar axle via the bearing rotation, on the outer circumferential face of cylindrical part, give prominence to the collar tube sub-assembly that forms wide diameter portion to a lateral deviation of central axis direction is embedded in described running shaft and installs with putting, it is characterized in that, described collar tube sub-assembly makes the anti-wide diameter portion side end face opposite with the wide diameter portion side end face of the described wide diameter portion biasing side of described cylindrical part embed described running shaft towards described bearing wall, described anti-wide diameter portion side end face is connected to the step of described running shaft and fixes, and and described wide diameter portion between exist predetermined gap width ground at the outstanding protuberance that is formed with of described bearing hole end face.
The aspect that second aspect is put down in writing, in the package assembly of the collar tube sub-assembly that first aspect is put down in writing, it is characterized in that described protuberance is big to the axial width between the described wide diameter portion from the described wide diameter portion side end face of the described cylindrical part of described collar tube sub-assembly from the overhang ratio of described bearing hole end face.
The aspect that the third aspect is put down in writing, in the package assembly of the collar tube sub-assembly that first aspect or second aspect are put down in writing, it is characterized in that, described collar tube sub-assembly is the driving sprocket wheel that described wide diameter portion forms sprocket tooth, and described gap width is that volume hangs over the width of the chain of described sprocket tooth near the degree of described protuberance.
The aspect that fourth aspect is put down in writing, in the package assembly of the collar tube sub-assembly that the third aspect is put down in writing, it is characterized in that, described running shaft is the rotary driving axle, described chain frame is located between described rotary driving axle and the driven running shaft, in the described bearing hole end face of the ring-type around the described bearing hole, with respect to described rotary driving axle, the described protuberance outstanding at described bearing hole end face is highlighted the opposition side position that is formed on described driven running shaft, and described protuberance is given prominence to the face of the opposition side of described rotary driving axle with becoming plane of inclination and wedge-like.
The aspect that the 5th aspect is put down in writing, in the package assembly of the collar tube sub-assembly that fourth aspect is put down in writing, it is characterized in that, described structure is the crankcase of internal-combustion engine, the described rotary driving axle that axle is bearing in the bearing wall of described crankcase is a bent axle, and described driven running shaft is the camshaft of valve system.
The aspect that the 6th aspect is put down in writing in the package assembly of the collar tube sub-assembly of being put down in writing, is characterized in that described bearing is a metal bearing aspect the 5th, the internal diameter of described bearing hole is littler than the tooth top diameter of a circle of the sprocket tooth of described driving sprocket wheel.
The aspect that the 7th aspect is put down in writing, aspect the 5th or in the package assembly of the collar tube sub-assembly put down in writing of the 6th aspect, it is characterized in that, described camshaft is positioned at the top of described bent axle, and the described bearing hole end face around described bearing hole is with respect to described bent axle, except the described protuberance of the downside of the opposition side that becomes camshaft, be formed with the upside protuberance in that the upside that becomes described camshaft side is outstanding, become the plane of inclination above described upside protuberance makes, and wedge-like give prominence to.
The aspect that eight aspect is put down in writing, aspect the 5th or in the package assembly of the collar tube sub-assembly put down in writing of the 6th aspect, it is characterized in that, described camshaft is configured in identical with described bent axle or slightly higher than described bent axle position, described bearing hole end face around described bearing hole, with respect to described bent axle, except the described protuberance of giving prominence to the opposition side position that is formed on camshaft, the outstanding camshaft side protuberance that is formed with at described camshaft side position.
The aspect that the 9th aspect is put down in writing, in the package assembly of the collar tube sub-assembly that eight aspect is put down in writing, it is characterized in that, be erected at chain between described bent axle and the described camshaft along rotating as lower direction, promptly, the downside portion of chain drawn by described driving sprocket wheel, the upside portion of chain is sent from described driving sprocket wheel.
The package assembly of the collar tube sub-assembly that invention is put down in writing according to first aspect, embed running shaft when giving prominence to the collar tube sub-assembly that forms wide diameter portion towards a lateral deviation of central axis direction in the periphery of cylindrical part with putting, and when making the step butt of itself and running shaft, observe the interval between the protuberance of bearing hole end face of the wide diameter portion of collar tube sub-assembly and the outstanding bearing wall that is formed on relative structure, just can confirm simply: if this interval roughly has the predetermined gap width, then correctly assemble, if it is obviously different with the specified gap width, it then is wrong assembling, and when sleeve-assembled, can easily find wrong assembling.
The package assembly of the collar tube sub-assembly that invention is put down in writing according to second aspect, because described protuberance is bigger to the axial width between the wide diameter portion than the end face of the biasing of the wide diameter portion from the described cylindrical part of collar tube sub-assembly side from the overhang of described bearing hole end face, therefore, if the wide diameter portion biasing side with collar tube sub-assembly embeds running shaft towards bearing wall mistakenly, then before the step butt of the cylindrical part end of collar tube sub-assembly and running shaft, wide diameter portion will with the protuberance butt of bearing hole end face, therefore, can be easily and learn wrong assembling clearly.
The package assembly of the collar tube sub-assembly that invention is put down in writing according to the third aspect, because described collar tube sub-assembly is the driving sprocket wheel that wide diameter portion becomes sprocket tooth, described gap width is that volume hangs over the width of the chain of described sprocket tooth near the degree of described protuberance, therefore, when with driving sprocket wheel when running shaft is assembled, can easily judge whether and chain roll can be hung on the sprocket tooth from gap width, can prevent the mistake assembling of driving sprocket wheel.
The package assembly of the collar tube sub-assembly that invention is put down in writing according to fourth aspect, described running shaft is the rotary driving axle, described chain frame is located between rotary driving axle and the driven running shaft, in the described bearing hole end face of the ring-type around the described bearing hole, with respect to described rotary driving axle, the described protuberance outstanding at described bearing hole end face is highlighted the opposition side position that is formed on described driven running shaft, protuberance is given prominence to the face of the opposition side of described rotary driving axle with becoming plane of inclination and wedge-like, therefore, at first, when chain roll being hung over the driving sprocket wheel of rotary driving axle side, by chain roll being hung over the opposition side of the driven running shaft of driving sprocket wheel, chain is directed to the plane of inclination of protuberance, thereby can be easily and reliably volume hang on the driving sprocket wheel, secondly, can easily chain be erected at driven rotation shaft side with extending, assembling performance is fabulous.
The package assembly of the collar tube sub-assembly that invention is put down in writing according to the 5th aspect, because described structure is the crankcase of internal-combustion engine, the described rotary driving axle that axle is bearing in the bearing wall of described crankcase is a bent axle, described driven running shaft is the camshaft of valve system, therefore, the protuberance that is formed on the bearing wall of crankcase can make the assembling performance of driving mechanism of moving valve system of internal-combustion engine good.
The package assembly of the collar tube sub-assembly that invention is put down in writing according to the 6th aspect, because the bearing at the bearing hole axle supporting crankshaft of the bearing wall of crankcase is a metal bearing, the internal diameter of bearing hole is littler than the tooth top diameter of a circle of the sprocket tooth of driving sprocket wheel, therefore, by adopting metal bearing, can make the internal diameter of bearing hole little, and the miniaturization of realization crankcase, and, only, protuberance can be simplified and miniaturization by just forming the described protuberance relative towards axially giving prominence to the sprocket tooth of driving sprocket wheel from the bearing nose end.
The package assembly of the collar tube sub-assembly that invention is put down in writing according to the 7th aspect, because camshaft is positioned at the top of bent axle, described bearing hole end face around bearing hole, with respect to bent axle, except the described protuberance of the downside of the opposition side that becomes camshaft, at the outstanding upside protuberance that is formed with of the upside that becomes camshaft side, above making, the upside protuberance becomes the plane of inclination, and wedge-like give prominence to, therefore, on the driving sprocket wheel of bent axle, the chain camshaft of hanging from downside volume upward extends, between the both sides of this chain that extends upward, along the mobile oil droplet of the last lateral incline of the upside protuberance that is formed at upside bearing hole end face to driving sprocket wheel, thereby can be lubricated the interlock between driving sprocket wheel and the chain effectively, can suppress wearing and tearing.
The package assembly of the collar tube sub-assembly that invention is put down in writing according to eight aspect, because camshaft is configured in identical with described bent axle or slightly high position, described bearing hole end face around bearing hole, with respect to bent axle, except the described protuberance of the tab-like one-tenth in the opposition side position of camshaft, the outstanding camshaft side protuberance that is formed with at described camshaft side position, therefore, on the driving sprocket wheel of bent axle, the chain of hanging from side volume extends to camshaft side, between the upside portion of chain and downside portion of chain that extend to camshaft side, the downward side chain bar of the oil droplet part that the camshaft side protuberance that forms along the camshaft side at the bearing hole end face flows, and to the chain supply, thereby can be lubricated the interlock between chain and the sprocket wheel effectively.
The package assembly of the collar tube sub-assembly that invention is put down in writing according to the 9th aspect, owing to be erected at chain between bent axle and the camshaft along rotating as lower direction, promptly, the downside portion of chain is drawn by described driving sprocket wheel, the upside portion of chain is driven sprocket wheel and sends, therefore, before the downside portion of chain is driven sprocket wheel traction, supplies with oil from the camshaft side protuberance, thereby can be very effectively the interlock of chain and driving sprocket wheel be lubricated.
Description of drawings
Fig. 1 is the left side view of part abridged cut-away section of the internal-combustion engine of one embodiment of the present of invention.
Fig. 2 is the right side view of the part abridged cut-away section of this internal-combustion engine.
Fig. 3 is the III-III line sectional drawing of Fig. 1 and Fig. 2.
Fig. 4 is the IV-IV line sectional drawing of Fig. 1 and Fig. 2.
Fig. 5 is the V-V line sectional drawing of Fig. 1 and Fig. 2.
Fig. 6 is illustrated in the driving sprocket wheel on the left crankshaft half or starts the major component sectional drawing of the package assembly of driven gear etc.
Fig. 7 is its decomposing section.
Fig. 8 is the plan view of left crankshaft half.
Fig. 9 is the side view of this left side crankshaft half of seeing from axial left side.
Figure 10 is the plan view of driving sprocket wheel.
Figure 11 is the side view of this driving sprocket wheel of seeing from axial left side.
Figure 12 is the plan view of nut part.
Figure 13 is the side view of this nut part of seeing from axial left side.
Figure 14 is the side view of the startup driven gear seen from axial left side.
Figure 15 is the side view of the ACG rotor of the AC generator seen from axial left side.
Figure 16 is the left side view of part clipped section of other embodiments' internal-combustion engine.
Description of reference numerals
10 internal-combustion engines, 11 crankcase 11C crankshaft room
The 11M gearbox chamber 11P oil storage 11L of portion left crankcase
11R right crankcase 11Lw, 11Rw bearing wall
11s bearing hole end face 12 cylinder block 13 cylinder head
14 valve mechanism cover, 16 pistons, 17 crankpins
18 connecting rods, 19 spark plugs
20 bent axle 20L, 20R crankshaft half
20La, 20Ra bent axle body 20Lw, 20Rw crank arm
A1 collar a2 step a3 spline slot part
A4 external thread part a5 columnar portion a6 tapered portion
A7 step a8 external thread part a9 supports columnar portion
21 crankpins, 22 bearing sleeves, 23 metal bearings
25 driving sprocket wheel 25c cylindrical part 25t sprocket tooth
26 nut parts 27 start driven gear 28 roller bearings
29 overrunning clutchs, 30 AC generator 30R ACG rotors
30r external rotor 30f flywheel 30s inner stator
31 packing rings, 32 nut parts, 33 roller bearings
34 key members, 35 balace weight actuation gears, 36 main actuation gears
37 packing rings, 38 nut parts
40 speed changers, 41 main shafts, 42 countershafts
43 output sprockets, 44 chains, 45 main driven gears
46 speed change clutchs, 47 balace weight 47w counterweights
48 balace weight axles
The right case cover in 50 left case cover 52 inboard right case covers, 53 outsides
60 active valve mechanisms, 61 suction valves, 62 outlet valves
65 camshaft 66e, 66i pitman arm shaft 67i intake rocker
67e exhaust rocker arm 68 driven sprockets 69 cam chains
71,72 selector fork axle 71a, 72a, 72b selector fork
73 gearshift drums, 74 shift drive mechanisms
75 gear levels, 76 shifting arms, 77 gearshift plates
78 pinplates
80 actuating motors, 81 live axle 81a start actuation gear
82 reduction gear axle 83a large diameter gear 83b small-diameter gears
90 oil pumps, 91 dump pumps, 92 oil transfer pumps
93 pump live axles, 95 bearing cap parts, 96 gear shafts
97 pump driven gears
100 protuberance 100s plane of inclination
200 internal-combustion engines, 211 crankcase 211s bearing hole end faces
212 cylinder block, 213 cylinder head, 214 valve mechanism cover
220 bent axles, 221 driving sprocket wheels, 230 camshafts
231 driven sprockets, 235 cam chains, 240 chain Lift Parts
241 tension armss, 242 tension sprockets, 245 guide wheels
250 protuberance 250s plane of inclination, 260 camshaft side protuberances
The 260s plane of inclination
Embodiment
Based on Fig. 1～Figure 15 one embodiment of the present of invention are described below.
In the internal-combustion engine 10 of present embodiment, have speed changer 40 integratedly at the rear of this internal-combustion engine 10, and bent axle 20 pointed to the overall width directions, promptly, left and right directions ground laterally lift-launch on two-wheeled vehicle.
In addition, in the present embodiment, consistent all around when being benchmark all around with the vehicle.
Internal-combustion engine E is the single-cylinder four-stroke internal-combustion engine, the structure of the crankcase 11 of axle supporting crankshaft 20 is: form at the rear of the 11C of crankshaft room that disposes bent axle 20 and accommodate the gearbox chamber 11M (with reference to Fig. 4) of speed changer 40, form the diapire 11P of oil storage portion (with reference to Fig. 3) of outstanding oil in reserve a little downwards below the 11C of crankshaft room.
With reference to Fig. 2 and Fig. 3, on the 11C of crankshaft room of crankcase 11, have the cylinder block 12 of a gas 12a, overlapping via liner and cylinder head 13 on cylinder block 12, and pass through cylinder head bolt 15 with the connection of their one, the top of valve mechanism cover 14 coating gas cylinder caps 13.
The cylinder block 12, cylinder head 13, the cylinder cover 14 that overlap on the crankcase 11 extend (with reference to Fig. 1, Fig. 2) upward with the form that leans forward a little from crankcase 11.
Constitute with the crankcase 11 of the bottom combination of cylinder block 12: left crankcase 11L engages with the mating face mutually with right crankcase 11R and is connected by bolt.This left crankcase 11L and right crankcase 11R are comprised cylinder-bore axis (central axis of cylinder 12a) and a pair of casing of dividing equally with bent axle 20 plane orthogonal.
The 11C of crankshaft room is engaged and is formed by left and right sides crankcase 11L, 11R, point to left and right directions and rotate bent axle 20 that the earth's axis freely is bearing in the 11C of crankshaft room be by crankpin 21 with about crankshaft half 20L, 20R connect as one and constitute, each crankshaft half 20L, 20R constitute by being formed on left and right sides bent axle body 20La, 20Ra on this and left and right sides crank arm 20Lw, 20Rw relative to each other, and left and right sides crank arm 20Lw, 20Rw relative to each other connected (with reference to Fig. 3) by the crankpin 21 from crankshaft axis off-centre.
Be embedded with the bearing sleeve 22,22 of ring-type in the bearing hole periphery of relative to each other roll bearing arm 11Lw, the 11Rw of the left and right sides of axle supporting crankshaft 20 crankcase 11L, 11R, be supported with and the crank arm 20Lw of left and right sides bent axle body 20La, the 20Ra of bent axle 20, the collar of 20Lw adjacency via 23,23 of metal bearings in interior week of this bearing sleeve 22,22.
Therefore, the 11C of crankshaft room between relative to each other roll bearing arm 11Lw, the 11Rw of left and right sides crankcase 11L, 11R contains crank arm 20Lw, 20Rw and crankpin 21, and bent axle body 20La, 20Ra are outstanding about the lateral of left and right sides bearing wall 11Lw, 11Rw.
On the other hand, as shown in Figure 3, the merging owing to left and right sides crankcase 11L, 11R be formed on the 11C of crankshaft room above circular open embed the bottom of the cylinder 12a that cylinder block 12 is arranged, piston 16 is come and gone to embed in the cylinder thorax 12b of cylinder 12a sliding freely.
Between the outstanding pair of pin bosses in the back side of the piston head of piston 16, set up crankpin 17, connected piston 16 and bent axle 20 by 17 supportings of this crankpin and big end by the connecting rod 18 of 21 supportings of crankpin of bent axle 20 by small end, thereby constitute crank mechanism.
In cylinder head 13, with cylinder 12a accordingly, relatively constitute firing chamber 13b in cylinder-bore axis direction and piston 16, inlet hole 13i rearward extends from this firing chamber 13b, exhaust port 13e forwards extends (with reference to Fig. 2) from firing chamber 13b, makes the front-end face of spark plug 19 that spark plug 19 (with reference to Fig. 3) is installed on 13b ground, firing chamber on the roof of firing chamber 13b.
As shown in Figure 2, be supported on the suction valve 61 of valve guide portion and outlet valve 62 respectively slidably and driven by the active valve mechanism 60 that internal-combustion engine E possesses, thus make the air inlet openings of inlet hole 13i and the exhaust port of exhaust port 13e (with the rotation of bent axle 20 synchronously) open and close.Wherein, this valve guide portion is entrenched in the cylinder head 13 integratedly.
With reference to Fig. 2, active valve mechanism 60 is axle carrier finger active valve mechanisms of the SOHC type internal-combustion engine of a camshaft 65 of direction to the left and right on cylinder head 13, be supported with pitman arm shaft 66e, 66i in camshaft 65 oblique front upper places and oblique back upper place, central authorities' swing of intake rocker 67i is freely by the supporting of the pitman arm shaft 66i axle at rear, and central authorities' swing of exhaust rocker arm 67e is supported by the pitman arm shaft 66e axle in the place ahead freely.
The end of intake rocker 67i and the intake cam profile of camshaft 65 (Japanese: the ロ Block) join, the upper end of the valve stem of the other end and suction valve 61 joins, the end of exhaust rocker arm 67e and the exhaust cam port of camshaft 65 join, and the upper end of the valve stem of the other end and outlet valve 62 joins.By the rotation of camshaft 65, intake rocker 67i and exhaust rocker arm 67e swing, thus drive suction valve 61 and outlet valve 62 switchings.
Driven sprocket 68 is entrenched in the left shaft end (with reference to Fig. 3) of camshaft 65.
On the other hand, from the left bearing wall 11Lw of bent axle 20 left side to the collar of the outstanding left bent axle body 20La of left, driving sprocket wheel 25 is by splined, between this driving sprocket wheel 25 and the described driven sprocket 68 above it, set up cam chain 69 (with reference to Fig. 1, Fig. 3), the rotating power of bent axle 20 transmits to camshaft 65 via 1/2 rotating speed of cam chain 69 with bent axle 20, synchronously make intake rocker 67i and exhaust rocker arm 67e swing with bent axle 20, thereby driving suction valve 61 and outlet valve 62 open and close in the required time respectively.
In addition, as shown in Figure 1, driving sprocket wheel 25 and above driven sprocket 68 between set up cam chain 69, make the chain guide 69g channeling conduct that front part is crooked slightly and lower-upper length extends longways of cam chain 69, and, make tensioned portion (the テ Application シ ョ Application ス リ パ) 69s of rear section bow action at the opposite side rear of cam chain 69 be pressed and join, thereby keep the tensioning of the appropriateness of cam chain 69.
The back side of the tensioned portion 69s Lift Part 69t that is tensioned pushes.
From the left bearing wall 11Lw of bent axle 20 to the outstanding left bent axle body 20La of left, via driving sprocket wheel 25 being positioned and fixing nut part 26, startup driven gear 27, overrunning clutch 29, the ACG rotor 30R quilt of AC generator 30 is chimeric successively, and fastening fixing by nut part 32 via packing ring 31.
In AC generator 30, ACG rotor 30R comprises: be entrenched in the flywheel 30f of left bent axle body 20La and be fixedly attached to the bowl-shape external rotor 30r of this flywheel 30f by bolt 30b, inner stator 30s is fixedly attached to inner core 50a.This inner core 50a is formed at the left case lid 50 that covers AC generator 30 grades from the left side.
Magnet 30rm is arranged on week in the cylindrical part of the external rotor 30r that rotates integratedly via flywheel 30f and bent axle 20, and the stator core that is wound with coil 30sc of inner stator 30s is inboard relative with this magnet 30rm's.
The shaft end of left side bent axle body 20La is bearing in the inner core 50a that is formed at left case lid 50 by axle via roller bearing.
Start driven gear 27 and be rotated freely via the roller bearing 28 of needle-like that the earth's axis is bearing in left bent axle body 20La, and and described flywheel 30f between overrunning clutch 29 is installed.
On the other hand, from the right bearing wall 11Rw of bent axle 20 to right-hand outstanding right bent axle body 20Ra, balace weight actuation gear 35 and main actuation gear 36 be by chimeric successively, and fastening fixing by nut part 38 via packing ring 27.
The right case lid that covers the right side of crankcase 11R comprises: cover right bearing wall 11Rw and with the right case lid 53 (with reference to Fig. 3) in the outside that inboard right case lid 52 and part by crankcase 11R butt covers the right case lid 52 in this inboard, insert the cylinder hub portion 52a (with reference to Fig. 3, Fig. 4) of inboard right case lid 52 to right-hand outstanding shaft end from the nut part 38 of right bent axle body 20Ra.
As shown in Figure 4, in the 11M of the gearbox chamber of crankcase 11, the main shaft 41 of speed changer 40 and countershaft 42 are at the rear of bent axle 20, via bearing 41b, 42b, point to left and right directions and in parallel to each other rotation be erected at freely between left and right sides bearing wall 11Lw, the 11Rw, the master gear that axle is bearing in main shaft 41 is that auxiliary gear set 42g that 41g and axle are bearing in countershaft 42 always rolls up and hangs ground and constitute speed changer 40.
It is outstanding and become output shaft to the outside that countershaft 42 connects crankcase 11 ground at left, and output sprocket 43 is entrenched in outstanding left end.
The chain 44 that volume hangs over output sprocket 43 is erected at the driven sprocket of not shown rear wheel-side and constitutes the chain transfer mechanism, thereby to the trailing wheel transferring power.
As shown in Figure 4, at the speed change clutch 46 that is provided with multi-disc friction type from the right bearing wall 11Rw of main shaft 41 to right-hand outstanding right side.
The clutch housing 46o of speed change clutch 46 is bearing in via buffer unit and rotates the main driven gear 45 that the earth's axis freely is bearing in main shaft 41, and and be entrenched in integratedly between the inner 46i of clutch of main shaft 41 a plurality of clutch plate 46c be installed, its driving by compression member 46p separates joint.
Main driven gear 45 and described main actuation gear 36 engagements that are entrenched in bent axle 20.
Therefore, by the driving of speed change clutch 46, with the transmission of power of bent axle 20 main shaft 41, perhaps with its separation to speed changer 40.
Be provided with balace weight 47 (with reference to the dotted line of Fig. 1, Fig. 2) in the place ahead of bent axle 20.
As shown in Figure 4, on balace weight 47, have the balace weight axle 48 of the counterweight 47w that between crank arm 20Lw, 20Lw, circles round, be erected at freely between left and right sides bearing wall 11Lw, the 11Rw via bearing 48b rotation.
Balancer driven gear 49 be arranged on from the right bearing wall 11Rw of balace weight axle 48 to right-hand outstanding right side, and with described balace weight actuation gear 35 engagements that are entrenched in bent axle 20.
The balace weight actuation gear 35 of engagement and balancer driven gear 49 are with the gear of footpath with the number of teeth, and counterweight 47w and bent axle 20 rotate round about with fast ground and drive, thereby reduce because the once vibration that the back and forth movement of piston 16 produces.
With reference to Fig. 1, below the main shaft 41 of described speed changer 40 and countershaft 42, selector fork axle 71,72 is erected between left and right sides bearing wall 11Lw, the 11Rw and is provided with, selector fork 71a and the master gear on the described main shaft 41 that is bearing in the selector fork axle 71 of front side sliding freely is that the selector fork gear among the 41g engages, and the selector fork gear that is bearing in sliding freely among the auxiliary gear set 42g on two selector fork 72a, 72b and the described countershaft 42 of selector fork axle 72 of rear side engages.
Below between the front and back selector fork axle 71,72,73 rotations of gearshift drum are set up freely and are bearing between left and right sides bearing wall 11Lw, the 11Rw, the selector fork pin of selector fork 71a, 72a, 72b is fastened on two steering channels of the outer circumferential face that is formed on gearshift drum 73 sliding freely, selector fork 71a, 72a, 72b be directed to the steering channel of drum 73 rotation of shifting gears and about move axially, thereby mobile selector fork gear and switch the speed change retaining of speed changer 40.
As shown in Figure 5, rear at gearshift drum 73, gear level 75 connects left and right sides crankcase 11L, 11R and is set up, this gear level 75 to the outstanding left end in outside pedestal speed change lever (not shown) is installed, shifting arm 76 is arranged on the right-hand member of gear level 75 with being entrenched in base end part.
Pinplate 78 is entrenched in the right axle head of the right bearing wall 11Rw that connects gearshift drum 73, and effect has the pawl of sending to of gearshift plate 77 on the outstanding bolt 78p that is arranged on this pinplate 78.The pawl of sending to of this gearshift plate 77 is installed in shifting arm 76.
In shift drive mechanism 74, if carry out the rotating operation of gear level 75, then swing shifting arm 76, via gearshift plate 77, make pinplate 78 rotate predetermined angular with gearshift drum 73, and mobile selector fork 71a, 72a, 72b, switch the speed change level.
As Fig. 2 and shown in Figure 5, this shift drive mechanism 74 is configured near the below of speed change clutch 46.This speed change clutch 46 is installed in the right-hand member of main shaft 41.
As depicted in figs. 1 and 2, give prominence to the rear of the cylinder block 12 of setting, configuration starting electrical machinery 80 above the upper wall of crankcase 11 from crankcase 11 with leaning forward slightly.
Starting electrical machinery 80 is installed to be: the sidewall that live axle 81 is bloated to the top of left crankcase 11L from right-hand embedding.The sidewall that live axle 81 embeds is covered (with reference to Fig. 5) by left case lid 50 from left.
With reference to Fig. 1 and Fig. 5, between live axle 81 and bent axle 20, be provided with reduction gear axle 82, this reduction gear axle 82 is erected between left crankcase 11L and the left case lid 50, integrally formed mutually large diameter gear 83a and small-diameter gear 83b are rotated freely, and the earth's axis is bearing in this reduction gear axle 82, this large diameter gear 83a and the startup actuation gear 81a engagement that is formed on live axle 81, and small-diameter gear 83b meshes with the described startup driven gear 27 that axle is bearing in bent axle 20.
Therefore, if be activated the startup actuation gear 81a rotation that motor 80 drove and be formed on live axle 81, then with large diameter gear 83a that starts actuation gear 81a engagement and the small-diameter gear 83b rotation of slowing down integratedly, startup driven gear 27 deceleration rotations with this small-diameter gear 83b engagement, the rotation that starts driven gear 27 together rotates the external rotor 30r of AC generator 30 and bent axle 20 via overrunning clutch 29, thereby can carry out the starting of internal-combustion engine 10.
At the inboard right case lid 52 from the right case lid 53 of the inboard right case lid 52 of outer side covers right crankcase 11R and the outside, below the cylinder hub portion 52a of the right axle head that is inserted with right bent axle body 20Ra, oil pump 90 (with reference to Fig. 2, Fig. 3) is installed.
As shown in Figure 3, oil pump 90 is made of dump pump (ス カ ベ Application ジ Port Application プ) 91 that is driven by common pump live axle 93 and oil transfer pump 92.
The right case lid 52 in the inboard, the partition wall of the shared oil transfer pump 92 of separating the inboard dump pump 91 and the outside and be formed back-to-back pump casing 52p, the opening of outside oil transfer pump 92 sides of the right case lid 53 canned pump shell 52p in the outside, the opening (with reference to Fig. 3) of inboard dump pump 91 sides of bearing cap parts 95 canned pump shell 52p.
On the bearing wall 11Rw of right crankcase 11R, on pump live axle 93, at this relative position to the right-hand cylinder hub portion 11Rs that is formed with highlightedly, gear shaft 96 and this pump live axle 93 that insertion and axle are supported on this cylinder hub portion 11Rs are connected in the cylindrical bearing portion of bearing cap parts 95, and rotation integratedly.
Be entrenched in the pump driven gear 97 and described main actuation gear 36 engagements of this gear shaft 96.
Therefore, via the engagement of main actuation gear 36 and pump driven gear 97, the rotation of bent axle 20 is passed to gear shaft 96 and pump live axle 93, thereby drives dump pump 91 and oil transfer pump 92.
In the internal-combustion engine 10 that is roughly said structure, below, based on Fig. 6 to Figure 15, to describing in the bent axle body 20La of the especially left crankshaft half 20L of bent axle 20 assembling driving sprocket wheel 25, the structure that starts the rotary component of driven gear 27 etc.
The bent axle body 20La that Fig. 6 is illustrated in left crankshaft half 20L assembles the major component sectional drawing of the package assembly of driving sprocket wheel 25, startup driven gear 27 etc.Fig. 7 is its decomposing section.
With reference to Fig. 6, Fig. 7 and as Fig. 8 of the plan view of left crankshaft half 20L, Fig. 9 as the side view of seeing this left side crankshaft half 20L from axial left side, in the bent axle body 20La of left crankshaft half 20L, be formed with successively from the root of crank arm 20Lw to left axle head: the collar a1 that is bearing in left bearing wall 11Lw via 23 of metal bearings, step a2, splined has the spline slot part a3 of driving sprocket wheel 25, be connected with the external thread part a4 of nut part 26, columnar portion a5 via roller bearing 28 supportings startup driven gear 27, have with the axle head of the flywheel 30f of the external rotor 30r one of AC generator 30 and the tapered portion a6 of undergauge gradually towards taper is chimeric, step a7, be connected with the external thread part a8 of nut part 32 and the supporting columnar portion a9 that supports via roller bearing 33.
By step a2, a7 and tapered portion a6, from the root of crank arm 20Lw to left axle head, the bent axle body 20La of left crankshaft half 20L is by undergauge ground formation gradually.
Therefore, can be easy to assembling easily at the solid of rotation of bent axle body 20La assembling driving sprocket wheel 25, startup driven gear 27 and ACG rotor 30R etc.
In addition, on the part of the tapered portion a6 of bent axle body 20La, excavate keyway v1 is arranged.
If via metal bearing 23, the collar a1 of the bent axle body 20La of left side crankshaft half 20L embeds the inboard of the bearing sleeve 22 of the bearing hole that is embedded in the left bearing wall 11Lw that is formed at left crankcase 11L, and then the bearing hole end face 11s of the ring-type on every side of the bearing hole in the left surface of left bearing wall 11Lw and the step a2 of bent axle body 20La become roughly the same position (with reference to Fig. 6) in the axial direction.
To be set at bearing hole inside diameter D c at the internal diameter of the bearing hole of the bearing hole end face 11s of left bearing wall 11Lw upper shed.
Among the bearing hole end face 11s of the ring-type of left bearing wall 11Lw, with respect to bent axle 20, at the opposition side position of described camshaft 65, promptly, slightly the tab-like one-tenth in downside position has protuberance 100.
The overhang P of protuberance 100 is the axial widths from bearing hole end face 11s to front end.
As shown in Figure 10 and Figure 11, splined also works as collar tube sub-assembly at the driving sprocket wheel 25 of the spline slot part a3 of bent axle body 20La, at outer circumferential face as the cylindrical part 25c of collar tube sub-assembly, to the biasing of the side (left side) of central axis direction give prominence to the sprocket tooth 25t that is formed with as wide diameter portion, be formed with spline tooth 25s at the inner peripheral surface of cylindrical part 25c.
If departing from of the sprocket tooth 25t on the cylindrical part 25c of driving sprocket wheel 25 is big, axial width from the wide diameter portion side end face 25o of the sprocket tooth 25t of cylindrical part 25c biasing side to sprocket tooth 25t is made as Wo, axial width from the anti-wide diameter portion side end face 25i opposite with the wide diameter portion side end face 25o of cylindrical part 25c to sprocket tooth 25t is made as Wi (with reference to Figure 10, Figure 11), then the overhang P of the described protuberance 100 of bearing hole end face 11s is bigger than Wo, littler than Wi, promptly, Wo＜P＜Wi.
Driving sprocket wheel 25 makes the anti-wide diameter portion side end face 25i of cylindrical part 25c embed bent axle body 20La from the left side towards the right side (left bearing wall 11Lw), spline tooth 25s splined is at the spline slot part a3 of bent axle body 20La, the step a2 butt (with reference to Fig. 6) of the end of the collar a1 of anti-wide diameter portion side end face 25i and bent axle body 20La.
The tooth top diameter of a circle Ds of sprocket tooth 25t in the driving sprocket wheel 25 is than the outer diameter D j of the collar a1 of left crankshaft half 20L and big at the bearing hole inside diameter D c of the bearing hole of bearing hole end face 11s opening.
Therefore, as shown in Figure 6, the protuberance of bearing hole end face 11s 100 is relatively outstanding with the sprocket tooth 25t of driving sprocket wheel 25, and and sprocket tooth 25t between have gap width C.
Gap width C is equivalent to deduct to the axial width Wi between the sprocket tooth 25t from anti-wide diameter portion side end face 25i the length of the overhang P of protuberance 100.
In addition, as shown in Figure 6, cam chain 69 connects a plurality of chain links successively by pin, and (Japanese: リ Application Network) constitute, the width E ratio gap width C of this chain link is big, and when cam chain 69 volumes were hung over sprocket tooth 25t, cam chain 69 was near protuberance 100.
Therefore, when assembling when driving sprocket wheel 25 is embedded bent axle body 20La, observe the gap width C between sprocket tooth 25t and the protuberance 100, when cam chain 69 volumes are hung over sprocket tooth 25t, then can easily learn gap width C whether be cam chain 69 with the width of the approaching degree of protuberance 100, promptly, the predetermined gap width, if obviously different with the predetermined gap width, assembling sequence mistake then, thereby the assembling of misjudgment easily.
In addition, though in driving sprocket wheel 25, is correct with the anti-wide diameter portion side end face 25i of cylindrical part 25c towards the assembling of left bearing wall 11Lw ground embedding bent axle body 20La, but, if the wide diameter portion side end face 25o with cylindrical part 25c embeds bent axle body 20La towards left bearing wall 11Lw ground mistakenly, then because wide diameter portion side end face 25o is littler than the overhang P of protuberance 100 to the axial width Wo of sprocket tooth 25t, therefore, before the step a2 butt of wide diameter portion side end face 25o and bent axle body 20La, sprocket tooth 25t will run into protuberance 100, thereby can not correctly driving sprocket wheel 25 be entrenched in spline slot part a3, therefore, can easily learn wrong assembling.
Like this, after driving sprocket wheel 25 is correctly embedded bent axle body 20La, nut part 26 is screwed in the external thread part a4 of bent axle body 20La, with driving sprocket wheel 25 fastening be fixed on and step a2 between.
As Figure 12 and shown in Figure 13, in nut part 26, be formed with the 26a of the portion that is operated of hexagonal outer circumferential face with maximum outside diameter in the end face side (right side) of joining with driving sprocket wheel 25, be formed with in opposite end face side (left side) and make external diameter be operated the outstanding cylindrical part 26b of the outer diameter D n of the 26a of portion undergauge, be formed with internal thread 26s at both the common inner peripheral surface that is operated 26a of portion and outstanding cylindrical part 26b from this.
By behind these nut part 26 fixed drive sprocket wheels 25, start the columnar portion a5 that driven gear 27 is installed ball bearing 28 and embedded bent axle body 20La.
With reference to Fig. 6, Fig. 7 and Figure 14, in starting driven gear 27, extend and be formed with gear part 27g towards centrifugal direction along the end of driving sprocket wheel 25 sides (right side) of cylinder hub portion 27b.
The inside diameter D g of bearing accepting hole 27d that accommodates the roller bearing 28 that starts driven gear 27 is bigger slightly than the outer diameter D n of the outstanding cylindrical part 26b of driving sprocket wheel 25.
Be formed with the annular recessed portion 27h that removes edge and simple recessed inside diameter D h at the open end of the bearing accepting hole 27d of the gear part 27g side of cylinder hub portion 27b.
Because the inside diameter D h of annular recessed portion 27h is bigger than the inside diameter D g of bearing accepting hole 27d, therefore, must be bigger than the outer diameter D n of the outstanding cylindrical part 26b of driving sprocket wheel 25.
As shown in Figure 6, if this startup driven gear 27 embeds the columnar portion a5 of bent axle body 20La via roller bearing 28, then the outstanding cylindrical part 26b of the outer diameter D n of nut part 26 enters the annular recessed portion 27h of the inside diameter D h that starts driven gear 27 slightly, and in the face of the bearing accepting hole 27d ground of inside diameter D g relative with roller bearing 28.
Therefore, start the space that is formed with ring-type between driven gear 27 and the nut part 26, this space will be housed in roller bearing 28 and the external communications among the bearing accepting hole 27d.
The nut part 26 that is screwed in the external thread part a4 of bent axle body 20La can and limit it at right side fixed drive sprocket wheel 25 and move axially, and, can be the left side of nut part 26 restriction roller bearing 28 moving axially to the nut part side, thereby the assembly that does not need the special bearing thrust of roller bearing 28, reduced the part number, and, can limit under the state that moves of driving sprocket wheels 25 by retention nut parts 26, unload startup driven gear 27, be easy to maintenance.
Owing to be, therefore, can guarantee the necessary rigidity of bent axle body 20La self, and reduce the diameter of axle, and can realize driving sprocket wheel 25, start the miniaturization of driven gear 27 in the spin structure of nut part 26 of bent axle 20.
In addition, because roller bearing 28 directly is entrenched in the columnar portion a5 of bent axle body 20La, and internal diameter is little, driving sprocket wheel 25 also splined at the spline a3 of bent axle body 20La, and internal diameter is little, therefore, even the external diameter of nut part 26 is paths, also can fixed drive sprocket wheel 25, and the moving axially of restriction roller bearing 28.
At the chimeric overrunning clutch 29 of periphery of the cylinder hub portion 27b that starts driven gear 27, the 29o of foreign steamer portion and the external rotor 30r of overrunning clutch 29 are fixedly supported upon flywheel 30f integratedly by bolt 30b together.
The interior Zhou Chengwei taper inner peripheral surface 30t of the cylinder hub portion 30fb of flywheel 30f, the cylinder hub portion 30fb of this flywheel 30f is entrenched in the tapered portion a6 of bent axle body 20La by taper, thereby supports ACG rotor 30R.
Excavate on the part of taper inner peripheral surface 30t keyway v2 is arranged, by at the keyway v1 of the tapered portion a6 that is formed at bent axle body 20La and the keyway v2 of taper inner peripheral surface 30t that is formed at flywheel 30f fitting key parts 34 on the two, thereby stop the relative rotation of bent axle body 20La and ACG rotor 30R reliably, it is rotated integratedly.
Like this, pad upper gasket 31 on the left side of the cylinder hub portion 30fb of the flywheel 30f on the tapered portion a6 that is entrenched in bent axle body 20La, and nut part 32 is screwed in the external thread part a8 of bent axle body 20La and fastening flywheel 30f.
As shown in Figure 1, in left crankshaft half 20L, outstanding be formed on bearing hole around bearing hole end face 11s on protuberance 100 be formed on the opposition side (downside) of camshaft 65.Wherein, the left crankshaft half 20L among the bearing wall 11Lw of this bearing hole axle supporting left crankcase 11L.
And as shown in Figure 6, protuberance 100 makes the face (following) of the opposition side of bent axle body 20La (bent axle 20) become plane of inclination 100s, and its wedge-like give prominence to.
At first, on driving sprocket wheel 25, cam chain 69 to moving valve system transferring power draws relative sidepiece one side of cam chain 69 upward, after hanging from the below volume on one side, driven sprocket 68 volumes are upward hung, thereby cam chain 69 is erected between driving sprocket wheel 25 and the driven sprocket 68, but, when with cam chain 69 when below volume hangs over driving sprocket wheel 25, with the sprocket tooth 25t of driving sprocket wheel 25 relatively, it is plane of inclination 100s that protuberance 100 makes downside, and wedge-like give prominence to, therefore, though cam chain 69 off-axis to, also can be guided to the plane of inclination 100s of protuberance 100 naturally, can easily roll up and be hung on driving sprocket wheel 25 (with reference to Fig. 6).
At this moment, the width E ratio gap width C of the chain link of cam chain 69 is big, therefore, can not occur situation such as being sandwiched between sprocket tooth 25t and the protuberance 100 as cam chain 69, and cam chain 69 can be rolled up reliably and hang over driving sprocket wheel 25.
Therefore, then, just can promptly carry out cam chain 69 is extended and rolling up the operation that hangs over driven sprocket 68, very easily carry out assembling operation in camshaft 65 sides.
Bearing at the bearing hole axle supporting crankshaft body 20La (bent axle 20) of the bearing wall 11Lw of left crankcase 11L is a metal bearing 23, the inside diameter D c of bearing hole is littler than the tooth top diameter of a circle Ds of the sprocket tooth 25t of driving sprocket wheel 25, therefore, by adopting metal bearing 23, can reduce the internal diameter of bearing hole and realize the miniaturization of crankcase 11, and, only by giving prominence to axial from bearing hole end face 11s, just can form the protuberance 100 relative, protuberance 100 is simplified and miniaturization with the sprocket tooth 25t of driving sprocket wheel 25.
In the above-described embodiments, in the bearing hole end face 11s around the bearing hole of bearing wall 11Lw, though from the downward side-prominent protuberance 100 that is formed with of bent axle body 20La, but, shown in the double dot dash line of Fig. 1 and Fig. 6, be different from this protuberance 100 ground, in bearing hole end face 11s, also can be from the bent axle body 20La side-prominent formation upside protuberance 101 that makes progress.
Become plane of inclination 101s above this upside protuberance 101 makes, and wedge-like give prominence to.
Therefore, if the oil that flows along the left surface of the bearing wall 11Lw of left crankcase 11L arrives upside protuberance 101, then it is directed and flows to the top plane of inclination 101s of upside protuberance 101, and drip sprocket tooth 25t to driving sprocket wheel 25 from front end, thereby can be effectively the interlock of sprocket tooth 25t and chain be lubricated, can suppresses wearing and tearing.
Then, based on Figure 16 other embodiments' internal-combustion engine 200 is described.
This internal-combustion engine 200 is single-cylinder four-stroke internal-combustion engines of SOHC type, overlap cylinder block 212 on the crankcase 211, cylinder head 213, valve mechanism cover 214 with from crankcase 211 wide-angles lean forward to form and forwards extend near level.
Therefore, the axle camshaft 230 that is bearing in cylinder head 213 is positioned at the slightly high position of bent axle 220 that is bearing in crankcase 211 than axle.
Be bound up on the driving sprocket wheel 221 of bent axle 220 and be entrenched between the driven sprocket 231 of camshaft 230 at spline and set up cam chain 235.
With driving sprocket wheel 25 in the foregoing description in the same manner, driving sprocket wheel 221 make sprocket tooth to the biasing of axial left side give prominence to and be formed on the cylindrical part.
In Figure 16, owing to bent axle 220 is rotated counterclockwise, so cam chain 235 also is rotated counterclockwise.
Promptly, the downside portion of chain of the driven sprocket 231 before and after being erected at and the cam chain 235 between the driving sprocket wheel 221 is driven sprocket wheel 221 tractions, the upside portion of chain is along being driven the direction rotation that sprocket wheel 221 is sent.
Axle is bearing in the tension sprocket 242 of the front end of tension arms 241 and pushes the upside portion of chain of being sent by the driving sprocket wheel 221 of cam chain 235 from the top, thereby applies tension force to cam chain 235.Wherein, this tension arms 241 is by 240 swings of chain Lift Part.
In addition, be supported with guide wheel 245 at the intermediate portion axle, this guide wheel 245 is sticked in pendant moiety and following pendant moiety both sides, prevents waving of cam chain 235.
On the bearing hole end face 211s around the bearing hole of bent axle 220, on bent axle 220, the outstanding protuberance 250 that is formed with at opposition side (rear side) position of camshaft 230.
In driving sprocket wheel 221 and since on cylindrical part to the biasing of axial left side give prominence to and be formed with sprocket tooth, therefore, if embedding form mistake to bent axle 220, then sprocket tooth will knock protuberance 250, thereby can not assemble, thereby can easily learn wrong assembling.
In addition, when cam chain 235 is erected at driving sprocket wheel 221 and driven sprocket 231, at first, cam chain 235 volumes are hung over driving sprocket wheel 221, but, at this moment, the opposition side (rear side) of the camshaft 230 by chain roll being hung over driving sprocket wheel 221, cam chain 235 is directed to the plane of inclination 250s of protuberance 250, can be easily and reliably volume hang over driving sprocket wheel 221, then, can be easily extend on forwardly the driven sprocket 231 and set up cam chain 235, very easily assembling.
In addition, the bearing hole end face 211s around the bearing hole of bent axle 220, at bent axle 220, the outstanding camshaft side protuberance 260 that is formed with at camshaft side (front side) position.
Become plane of inclination 260s above the camshaft side protuberance 260, and wedge-like give prominence to.
Therefore, if the oil that flows along the left surface of the bearing wall of crankcase 211 arrives camshaft side protuberance 260, then it is directed and the plane of inclination 260s above camshaft side protuberance 260 flows, and the traction by driving sprocket wheel 221, drip downside portion of chain to the dead ahead, the interlock that can lubricate cam chain 235 and driving sprocket wheel 221 effectively from front end.
Claims (9)
1. the package assembly of a collar tube sub-assembly, running shaft is bearing in the bearing hole of the bearing wall of structure freely via the bearing rotation by the collar axle,
On the outer circumferential face of cylindrical part, give prominence to the collar tube sub-assembly that forms wide diameter portion to a lateral deviation of central axis direction with putting and be embedded in described running shaft and install, it is characterized in that,
Described collar tube sub-assembly makes the anti-wide diameter portion side end face opposite with the wide diameter portion side end face of the described wide diameter portion biasing side of described cylindrical part embed described running shaft towards described bearing wall, and described anti-wide diameter portion side end face is connected to the step of described running shaft and fixes,
And and exist predetermined gap width ground between the described wide diameter portion at the outstanding protuberance that is formed with of described bearing hole end face.
2. as the package assembly of the collar tube sub-assembly of claim 1 record, it is characterized in that described protuberance is bigger to the axial width between the described wide diameter portion than the described wide diameter portion side end face from the described cylindrical part of described collar tube sub-assembly from the overhang of described bearing hole end face.
3. as the package assembly of claim 1 or 2 collar tube sub-assemblies of putting down in writing, it is characterized in that described collar tube sub-assembly is the driving sprocket wheel that described wide diameter portion forms sprocket tooth,
Described gap width is that volume hangs over the width of the chain of described sprocket tooth near the degree of described protuberance.
4. as the package assembly of the collar tube sub-assembly of claim 3 record, it is characterized in that described running shaft is the rotary driving axle,
Described chain frame is located between described rotary driving axle and the driven running shaft,
In the described bearing hole end face of the ring-type around the described bearing hole, with respect to described rotary driving axle, the described protuberance outstanding at described bearing hole end face is highlighted the opposition side position that is formed on described driven running shaft,
Described protuberance is given prominence to the face of the opposition side of described rotary driving axle with becoming plane of inclination and wedge-like.
5. as the package assembly of the collar tube sub-assembly of claim 4 record, it is characterized in that described structure is the crankcase of internal-combustion engine,
The described rotary driving axle that axle is bearing in the bearing wall of described crankcase is a bent axle,
Described driven running shaft is the camshaft of valve system.
6. as the package assembly of the collar tube sub-assembly of claim 5 record, it is characterized in that described bearing is a metal bearing,
The internal diameter of described bearing hole is littler than the tooth top diameter of a circle of the sprocket tooth of described driving sprocket wheel.
7. as the package assembly of claim 5 or 6 collar tube sub-assemblies of putting down in writing, it is characterized in that described camshaft is positioned at the top of described bent axle,
Described bearing hole end face around described bearing hole, with respect to described bent axle, except the described protuberance of the downside of the opposition side that becomes camshaft, at the outstanding upside protuberance that is formed with of the upside that becomes described camshaft side,
Become the plane of inclination above described upside protuberance makes, and wedge-like give prominence to.
8. as the package assembly of claim 5 or 6 collar tube sub-assemblies of putting down in writing, it is characterized in that described camshaft is configured in identical with described bent axle or slightly higher than described bent axle position,
Described bearing hole end face around described bearing hole, with respect to described bent axle, except the described protuberance of giving prominence to the opposition side position that is formed on camshaft, the outstanding camshaft side protuberance that is formed with at described camshaft side position.
9. as the package assembly of the collar tube sub-assembly of claim 8 record, it is characterized in that, be erected at chain between described bent axle and the described camshaft along as lower direction rotation, promptly, the downside portion of chain drawn by described driving sprocket wheel, the upside portion of chain is sent from described driving sprocket wheel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP038218/10 | 2010-02-24 | ||
| JP2010038218A JP5427643B2 (en) | 2010-02-24 | 2010-02-24 | Assembly structure of color members |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102192042A true CN102192042A (en) | 2011-09-21 |
| CN102192042B CN102192042B (en) | 2013-11-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100379442A Active CN102192042B (en) | 2010-02-24 | 2011-02-14 | Assembling structure for sleeve part |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5427643B2 (en) |
| CN (1) | CN102192042B (en) |
| BR (1) | BRPI1101410B8 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6014516B2 (en) * | 2013-02-28 | 2016-10-25 | 本田技研工業株式会社 | Crankshaft position detection structure |
| JP6404764B2 (en) * | 2014-09-30 | 2018-10-17 | 本田技研工業株式会社 | Roller chain tensioner device |
| JP6656286B2 (en) | 2018-03-29 | 2020-03-04 | 本田技研工業株式会社 | Crank angle detection device |
| CN111828571A (en) * | 2020-07-02 | 2020-10-27 | 立信染整机械(广东)有限公司 | Coaxial rotor mechanism of washing equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2334939Y (en) * | 1995-11-30 | 1999-08-25 | 江苏江淮动力机厂 | Support structure for crankshaft of model 195 diesel engine |
| JP2003074408A (en) * | 2001-08-31 | 2003-03-12 | Honda Motor Co Ltd | Cylinder block of plural cylinder engine |
| CN200996303Y (en) * | 2006-12-22 | 2007-12-26 | 重庆宗申技术开发研究有限公司 | Positioning magnetic cylinder of engine for motorcycle |
| JP2008075631A (en) * | 2006-09-25 | 2008-04-03 | Kubota Corp | Multi-cylinder engine |
| CN201187361Y (en) * | 2008-04-25 | 2009-01-28 | 南通柴油机股份有限公司 | Tunnel type crankshaft case organism of cylinder diameter 135-142 mm V type series diesel |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5917299B2 (en) * | 1978-08-26 | 1984-04-20 | 株式会社クボタ | Rotary power transmission device |
| JPH09152013A (en) * | 1995-11-30 | 1997-06-10 | Suzuki Motor Corp | Chain sprocket structure |
| JP4146698B2 (en) * | 2002-09-27 | 2008-09-10 | 川崎重工業株式会社 | Engine cover mounting structure |
-
2010
- 2010-02-24 JP JP2010038218A patent/JP5427643B2/en not_active Expired - Fee Related
-
2011
- 2011-02-14 CN CN2011100379442A patent/CN102192042B/en active Active
- 2011-02-22 BR BRPI1101410A patent/BRPI1101410B8/en active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2334939Y (en) * | 1995-11-30 | 1999-08-25 | 江苏江淮动力机厂 | Support structure for crankshaft of model 195 diesel engine |
| JP2003074408A (en) * | 2001-08-31 | 2003-03-12 | Honda Motor Co Ltd | Cylinder block of plural cylinder engine |
| JP2008075631A (en) * | 2006-09-25 | 2008-04-03 | Kubota Corp | Multi-cylinder engine |
| CN200996303Y (en) * | 2006-12-22 | 2007-12-26 | 重庆宗申技术开发研究有限公司 | Positioning magnetic cylinder of engine for motorcycle |
| CN201187361Y (en) * | 2008-04-25 | 2009-01-28 | 南通柴油机股份有限公司 | Tunnel type crankshaft case organism of cylinder diameter 135-142 mm V type series diesel |
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI1101410B1 (en) | 2021-02-09 |
| CN102192042B (en) | 2013-11-13 |
| JP5427643B2 (en) | 2014-02-26 |
| JP2011174517A (en) | 2011-09-08 |
| BRPI1101410B8 (en) | 2022-09-06 |
| BRPI1101410A2 (en) | 2012-08-07 |
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