CN101118001B

CN101118001B - Vehicle transmission mechanism

Info

Publication number: CN101118001B
Application number: CN2007100022119A
Authority: CN
Inventors: 何昭昌
Original assignee: Kwang Yang Motor Co Ltd
Current assignee: Kwang Yang Motor Co Ltd
Priority date: 2006-08-02
Filing date: 2007-01-12
Publication date: 2011-06-15
Anticipated expiration: 2027-01-12
Also published as: CN101118001A

Abstract

The present invention relates to a vehicle transmission device, a crank axle is utilized to be convexly extended outside a sealing cover, and to be threaded and arranged in a connection axle, in order to effectively reduce the assembled part number and improve the assembly convenience; in addition, the oil storage end part of the connection axle is utilized to be partially extended in the sealing cover; and an inner lubricating space provided for accumulating lubricating oil is defined out, and matched with a one-way clutch which is positioned in the part relatively positioned outside the sealing cover of the oil storage end part, thereby making the lubricating oil accumulate in the inner lubricating space in quantity in order to lubricate the one-way clutch fully, and effectively promoting the operated smooth degree of the clutch.

Description

Vehicle transmission gear

Technical field

The invention relates to a kind of vehicle transmission gear, be meant especially that a kind of assembly part number is few and assembling is convenient, and glossy effect Canon promotes the vehicle transmission gear of running smooth degree.

Background technique

As shown in Figure 1, an existing vehicle transmission gear 1, be (for example: locomotive, full-region vehicle to be used for a vehicle ... Deng) engine's motive power is passed to its trailing wheel (not shown), and comprise a crankcase unit 12, that can be subjected to that this engine drives, an and transmission case unit 14 in abutting connection with this clutch unit 13 in abutting connection with the clutch unit 13 that is arranged at these crankcase unit 12 sides.

This crankcase unit 12 has a crankcase 121, and is placed in this crankcase 121 and is subjected to bent axle 122 that this engine turns, driven shaft 123, that its opposite end is articulated in this bent axle 122 and transmission case unit 14 respectively to be arranged at first ball bearing 124 between the place of being articulated of this transmission case unit 14 and driven shaft 123 and a self-lubricating bearing 125 that is sheathed on these driven shaft 123 side faces.Wherein, this bent axle 122 have two can for lubricant oil circulation oil circuit 126.

This clutch unit 13 has one and is arranged at crankcase 121 1 sides of this crankcase unit 12 and cooperates the capping 131 that defines a clutch chamber 130, one is sheathed on this bent axle 122 and can be driven and the wet clutch 132 that rotates, one is sheathed on this bent axle 122 and can be covered the outer cover 133 that is overlying on these wet clutch 132 outsides by interlock with turning, one links the body 134 be arranged at 133 of these driven shaft 123 1 ends and this outer covers, one is arranged at second ball bearing 135 of 122 on this body 134 and this bent axle, and one carries out glossy overrunning clutch 136 in order to the lubricant oil of controlling these wet clutch 132 one-way rotation and can be exported from the oil circuit 126 of this bent axle 122.This outer cover 133 is to utilize many rivets 137 to link with this body 134.The driven shaft 123 of this crankcase unit 12 is to protrude in this capping 131 to engage with body 134.When this bent axle 122 rotated, this wet clutch 132 was driven to rotate, when these wet clutch 132 rotations reach a rotating speed, will be via this this body 134 of outer cover 133 interlocks, and simultaneously, this body 134 is these driven shaft 123 rotations of interlock in the lump just.

This transmission case unit 14 has the driving disc group 142 that a transmission case that combines with the crankcase 121 of this crankcase unit 12 141, is sheathed on this driven shaft 123 drivenly, and one can be seen through that a V-shape belt 143 turn by this driving disc group 142 and then the driven disc group of interlock (among the figure because of analyse and observe concern not shown), the two ends pitch diameter of this V-shape belt 143 changeably respectively embedding be around between this driving disc group 142 and this driven disc group.

Along with the rotation speed change of this driven shaft 123, this driving disc group 142 is influenced by centrifugal action and produces the scalable variation of spacing, and then changes the size of these V-shape belt 143 two ends pitch diameters.When this driven shaft 123 when slowly running, this V-shape belt 143 is little in the pitch diameter at these driving disc group 142 places, and big in the pitch diameter at this driven disc group place, this moment this rear wheel rotation speed low; When this driven shaft 123 during in high speed rotating, this V-shape belt 143 is big in the pitch diameter at these driving disc group 142 places, and is little in the pitch diameter at this driven disc group place, this moment this rear wheel rotation speed height.

Therefore, when idling, rotate with this wet clutch 132 even if engine orders about this bent axle 122, cross low its centrifugal film 134 that can't make because of these wet clutch 132 rotating speeds and throw away with this outer cover 133 of interlock, nature can't drive this trailing wheel.In accelerating process, these driven shaft 123 rotating speeds increase, and force this driving disc group 142 to push these V-shape belts 143 and its pitch diameter is outwards enlarged, and its pitch diameter in this driven disc group place dwindles relatively, and this rear wheel rotation speed increases, and quickens locomotive driving speed.On the contrary, in moderating process, these driven shaft 123 rotating speeds drive and fall, cause this driving disc group 142 to unclasp this V-shape belt 143 and its pitch diameter is inwardly dwindled, its pitch diameter in this driven disc group place increases relatively, and this rear wheel rotation speed reduces, and the locomotive driving speed that eases up.

Yet this vehicle transmission gear 1 but can be easy to generate following problem when manipulating:

One, whole comparatively difficulty inconvenience on processing and assembly program: because these bent axle 122 length only extend in this clutch unit 13, these driven shaft 123 length then stretched through this capping 131 and must engage with this body 134, because of must seeing through numerous parts such as first and second ball bearing 124,133 and self-lubricating bearing 125, this driven shaft 123 cooperates, can obtain enough rotational support, and guarantee that its transmission is smooth and easy.Thus and since numerous spare parts add between first and second ball bearing 124,133 install and requirement on machining accuracy higher, make whole comparatively difficulty inconvenience on processing and assembly program.

Two, this overrunning clutch 136 can't fully obtain glossy, causing running to have some setbacks and fragile: in the operation process, must export second ball bearing 135 and overrunning clutch 136 of lubricant oil via two oil circuits 126 of this bent axle 122 to this clutch unit 13, surface friction drag when rotating to help reducing this wet clutch 132 promotes its running smooth degree.Yet,,, do not have the space that can supply lubricant oil to accumulate owing to be to be close to be subjected to 134 of this bodies tightly to touch double team around this overrunning clutch 136 with glossy effect for this overrunning clutch 136.Add, oil circuit 126 bores of this bent axle 122 are minimum, in unit time the lubricants capacity of exporting quite few, so this overrunning clutch 136 obviously can't be fully and is obtained the glossy effect of lubricant oil equably, cause this wet clutch 132 and overrunning clutch 136 having some setbacks on rotating, even very easily damage.

Summary of the invention

Therefore, the present invention's purpose promptly reduces the usage quantity of part and can improve the convenience of assembling providing a kind of, and can obtain preferable glossy effect, to promote the vehicle transmission gear of running smooth degree.

Vehicle transmission gear of the present invention, comprise a crankcase unit, and be arranged at the other transmission case unit of clutch unit in abutting connection with the clutch unit that is arranged at this side, crankcase unit, an adjacency, and a lubricant oil that flows in this clutch unit and this crankcase unit.This crankcase unit have a crankcase, be placed in this crankcase and this clutch unit that stretches through in bent axle, an and connection shaft that is arranged in this transmission case unit.This clutch unit has a capping, that is arranged at this crankcase one side and defines a clutch chamber and is arranged in this clutch chamber and can be driven the wet clutch that turns by this bent axle, and an overrunning clutch.This bent axle has the outer protruding end portion of inserting in this transmission case unit of also extending of outstanding this capping; This connection shaft has one around the protruding end portion of this bent axle and the local oil storage end of inserting in this capping and linking with this clutch of stretching; This oil storage end defines one and supplies the interior lubricated space that this overrunning clutch is ccontaining and supply this lubricant oil to be full of.What this overrunning clutch was the position in this oil storage end is positioned at part outside this capping relatively.

It is that the part is stretched and inserted in this capping that effect of the present invention is to utilize the oil storage end of this connection shaft, and define the interior lubricated space of accumulating for lubricant oil, what to cooperate this overrunning clutch be the position in this oil storage end is positioned at part outside this capping relatively, making lubricant oil to lodge in a large number lubricates in the space in this, so that this overrunning clutch can sufficient lubrication, effectively promote the running smooth degree of this clutch.

Description of drawings

Fig. 1 is a partial schematic sectional view of general vehicle transmission device;

Fig. 2 is a structural representation, and first preferred embodiment of vehicle transmission gear of the present invention is described;

Fig. 3 is a partial enlarged drawing, and the oil circuit flow path design of this preferred embodiment is described; And

Fig. 4 is a partial structurtes enlarged view, and second preferred embodiment of vehicle transmission gear of the present invention is described.

Embodiment

About aforementioned and other technology contents, characteristics and effect of the present invention, in the following detailed description that cooperates with reference to two graphic preferred embodiments, can clearly present.Before the present invention is described in detail, be noted that in the following description similarly assembly is to represent with identical numbering.

Shown in Fig. 2,3, first preferred embodiment of vehicle transmission gear 2 of the present invention is applicable to that speed gram reaches locomotive, full-region vehicle ... Deng, can be in order to engine 3 transmission of power to a trailing wheel (not shown), to reach the transmission purpose.This vehicle transmission gear 2 comprises a clutch unit 22, and driven by this engine 3 and the crankcase unit 23, that drives this clutch unit 22 can be subjected to match with this crankcase unit 23 interlock and must order about the transmission case unit 24 that this trailing wheel rotates of this clutch unit 22, and a lubricant oil 25 that injects this crankcase unit 23 and this clutch unit 22.In brief, use and the power of this engine 3 can be passed to this transmission case unit 24 via this crankcase unit 23 with this clutch unit 22, and then order about this trailing wheel and rotate.

This clutch unit 22 is other in abutting connection with being arranged at this crankcase unit 23, and have one and be arranged at these crankcase unit 23 1 sides and the capping 221, that defines a clutch chamber 220 of matching is placed in this clutch chamber 220 and the wet clutch 222, that can be driven to rotate is placed in this clutch chamber 220 and cover is overlying on these wet clutch 222 outsides and can be by the bowl-shape outer cover 223 of its driven rotary, and one can be in order to control the overrunning clutch 224 of these wet clutch 222 one-way rotation.This outer cover 223 is to utilize rivet 225 to be connected with this connection shaft 232.

This crankcase unit 23 has an one side and cooperates the crankcase 230 that defines this clutch chamber 220 with this capping 221, one turns start and projection by this engine 3 runs through these clutch unit 22 middle parts and can order about the bent axles 231 that this wet clutch 222 and this overrunning clutch 224 rotate synchronously, one be arranged in this transmission case unit 24 and local protrude into this capping 221 and for this bent axle 231 place into connection shaft 232, one is folded in this bent axle 231 and this connection shaft 232 overlaps mutually clutch shaft bearing 233 between the place, one is folded in this connection shaft 232 and this capping 221 overlaps mutually second bearing 226 between the place, one is adjacent to this second bearing 226 spills the oil sealing 227 of this capping 221 in order to prevent lubricant oil 25, and an axial region sleeve 238 that is located on these bent axle 231 side faces.Wherein, this capping 221 is around these bent axle 231 side faces with this outer cover 223; This wet clutch 222 is sheathed being fixed on these bent axle 231 side faces.In the present embodiment, this first and second bearing 233,226 is roller bearing.

This connection shaft 232 has one and articulates the end, location 251 be positioned in this transmission case unit 24, and one around this bent axle 231 and local stretch insert in this capping 221 and with the oil storage end 252 of these outer cover 223 riveted joints.This oil storage end 252 defines an interior lubricated space 253 that supplies this lubricant oil 25 to be full of and to be connected with this clutch chamber 220.

This bent axle 231 is to be the both ends open state and to be formed with a central axis, and has one at the oiling end 234 of this central axis away from an end place of this transmission case unit 3, one at another end opposite place of this central axis and stretch out outside this capping 221 and stretch protruding end portion 235 in the oil storage end 252 of inserting this connection shaft 232, one in this oiling

end

234 and 235 in this protruding end portion and depart from the crankpin 236 of this central axis, one along this central axial direction extend and be communicated with this crankpin 236 with should in the internal oil channel 237 in lubricated space 253, and one be arranged in this protruding end portion 235 and its internal diameter less than the throttling element 239 of these internal oil channel 237 internal diameters.In the present embodiment, this throttling element 239 promptly is the channel of internal diameter less than these internal oil channel 237 internal diameters, mainly is the lubricants capacity that flows out from this protruding end portion 235 in order to reduction; Certainly, this throttling element 239 also can be a throttle valve.

This clutch shaft bearing 233 is the outer circumferential face of protruding end portion 235 ends and the overlapping mutually between the place of this connection shaft 232 that are arranged at this bent axle 231.This second bearing 226 is that overlap mutually between the place at these oil storage end 252 outer surfaces and this capping 221 inner faces the position; This overrunning clutch 224 is to be placed in to lubricate in the space 253 in this with this axial region sleeve 238, this axial region sleeve 238 is protruding end portion 235 outer circumferential faces that are located on this bent axle 231, this overrunning clutch 224 is to be located on these axial region sleeve 238 outer circumferential faces, particularly, this overrunning clutch 224 are positions this oil storage end 252 be positioned at part this capping 221 outside relatively, and on 233,226 on this first and second bearing.

After this lubricant oil 25 injects, be in oiling end 234 these internal oil channels 237 of inflow via this bent axle 231, flow into this internal oil channel 237 half section oil circuit before earlier, through this crankpin 236, flow back to the second half section oil circuit of this internal oil channel 237 again, pass this throttling element 239 and after the reduction oil pump capacity, overflow to inject through this clutch shaft bearing 233 again should in lubricate in the space 253.Lodging in 25 of lubricant oil that lubricate in the space 253 in this can continue to flow in this clutch chamber 220 through second bearing 226 earlier, with lubricated this wet clutch 222.By last explanation as can be known, be stored in the lubricant oil 25 in the lubricated space 253 in this, this overrunning clutch 224 is fully soaked into wherein, and, this lubricant oil 25 also can riddle around this first and second bearing 233,226 and this wet clutch 222, uses can fill part and reach lubricated effect.

This transmission case unit 24 has the transmission case 240 of the connection shaft 232 1 ends pivot joint of its inner face and this crankcase unit 23, one is placed in this transmission case 240 and can be sheathed on active rotating disk group 241 on this connection shaft 232 drivenly, one is placed in this transmission case 240 and can be by the passive rotating disk group 242 of these active rotating disk group 241 driven rotary, one is placed in this transmission case 240 and its shape variable ground, two ends embedding winding places V-shape belt 243 on this active rotating disk group 241 and this passive rotating disk group 242, and one is placed in this transmission case 240 and can be arranged in this passive rotating disk group 242 drivenly and can drives the transmission shaft 244 of this trailing wheel rotation.

This active rotating disk group 241 has that a cover is fixed on this connection shaft 232 and the fixed tray 245 of contiguous this crankcase unit 23, and contiguous these transmission case 240 inner faces and be sheathed on slider disc 246 on this connection shaft 232 slippingly away from this crankcase unit 23 relatively.When this connection shaft 232 rotates, initiatively rotating disk group 241 can be with its synchronous rotation for this, ball in this slider disc 246 outwards throws away because of centrifugal action, and order about this slider disc 246 towards these fixed tray 245 direction slippages with this V-shape belt 243 of cramping, force this V-shape belt 243 to extend out and its pitch diameter increases.Therefore, along with these connection shaft 232 faster rotational speed, 246 of this slider disc are got over this fixed tray 245 of convergence, and the pitch diameter of this V-shape belt 243 is cumulative; On the contrary, along with these connection shaft 232 rotating speeds reduce, 246 of this slider disc are got over away from this fixed tray 245, the pitch diameter convergent of this V-shape belt 243.Particularly, the protruding end portion 235 of this bent axle 231 is fixed trays 245 that this active rotating disk group 241 is crossed in relative projection.

This passive rotating disk group 242 has the slippage dish 248 that a cover is fixed on this transmission shaft 244 and the affixed dish 247, of contiguous these transmission case 240 inner faces is sheathed on this transmission shaft 244 slippingly, and its two ends are individually fixed on this slippage dish 248 and this transmission shaft 244 and order about this slippage dish 248 permanent springs 249 that move toward these affixed dish 247 directions.When this active rotating disk group 241 is rotated, this passive rotating disk group 242 can be rotated with this active rotating disk group 241 down in these V-shape belt 243 transmissions: when these active rotating disk group 241 faster rotational speed, because of this V-shape belt 243 in this when initiatively the pitch diameter at rotating disk group 241 places is cumulative, relatively, this V-shape belt 243 is in the pitch diameter meeting convergent at these passive rotating disk group 242 places, and force this slippage dish 248, and these spring 249 generation compressive deformations, these transmission shaft 244 faster rotational speed at this moment away from this affixed dish 247; When this initiatively rotating disk group 241 rotating speeds reduction, during the pitch diameter convergent of its V-shape belt 243, this V-shape belt 243 is then cumulative relatively in the pitch diameter at these passive rotating disk group 242 places, cooperate this spring 249 to act on elastic restoring force on this slippage dish 248 for compression set resistant, this slippage dish 248 is able to this affixed dish 247 of convergence again, and this moment, these transmission shaft 244 rotating speeds reduced.

When the operating and controlling vehicle gait of march, if desire is quickened, can urge open out that the engine 3 running speed is accelerated, to increase the rotating speed of this connection shaft 232 and this active rotating disk group 241, make this V-shape belt 243 increase in the pitch diameter at these active rotating disk group 241 places, and its pitch diameter in these passive rotating disk group 242 places dwindles, and these transmission shaft 244 rotating speeds are accelerated, and then orders about this rear wheel rotation speed and accelerate to promote Vehicle Speed; On the contrary, if desire is slowed down, then unclasp throttle to reduce the engine 3 running speed, the rotating speed of this connection shaft 232 and this active rotating disk group 241 thereby drive subtracts, make this V-shape belt 243 dwindle in the pitch diameter at these active rotating disk group 241 places, and it increases in the pitch diameter at these passive rotating disk group 242 places, and these transmission shaft 244 rotating speeds are minimized, and then orders about this rear wheel rotation speed and diminish to reduce Vehicle Speed.

Therefore, this vehicle transmission gear 2 can reach following effect really on reality is used:

One, part assembly number is few, and the assembling convenience is good:

The protruding end portion 235 that utilizes this bent axle 231 stretches out outside this capping 221, and then the oil storage end 252 that must stretch through and place this connection shaft 232, be located in the clutch shaft bearing 233 between the folded mutually place of this protruding end portion 235 and this connection shaft 232 in the cooperation, and can effectively reduce the assembly part number and reach the advantage of assembling convenience, effectively improve the many and installation of the assembly part number of general vehicle transmission device 1 (see figure 1), requirement on machining accuracy is higher, cause whole on processing and assembly program the shortcoming of difficulty inconvenience comparatively.And can be further, utilizing this protruding end portion 235 is fixed tray 245 these Position Design that extend across this active rotating disk group 241, can make the phenomenon that is difficult for causing eccentric rotary between this bent axle 231 and this connection shaft 232.

Two, glossy effect is good, effectively promotes running smooth degree and working life:

See through lubricant oil 25 and can flow to this throttling element 239 through this internal oil channel 237 in regular turn, and give and transfer after the oil pump capacity that contracts stream to be stored in this in lubricated space 253, make this overrunning clutch 224 can be infiltrated in this lubricant oil 25, and obtain fully, uniform glossy effect, and, this lubricant oil 25 also can fully riddle this first, two bearings 233,226 with around this wet clutch 222, use and effectively to promote this wet clutch 222, this bent axle 231 ... running smooth degree Deng parts, and promote its working life, the overrunning clutch 136 that effectively improves general vehicle transmission device 1 (see figure 1) can't obtain fully glossy, so that these wet clutch 132 runnings have some setbacks and flimsy problem.

As shown in Figure 4, second preferred embodiment of vehicle transmission gear 2 of the present invention, be identical haply with this first preferred embodiment, something in common is superfluous words no longer, part wherein inequality is: this clutch unit 22 has more one and connects this capping 221 and extend the oil sealing base 261 that defines lubricated space 260 outside to center on towards the active rotating disk group 241 of this transmission case unit 24, be formed with on the oil storage end 252 of the connection shaft 231 of this crankcase unit 23 at least one connection should in, outer lubricated space 253,260 perforation 254,227 on this oil sealing is changed to the position that is provided with between this oil sealing base 261 ora terminalis and this oil storage end 252 by the described position that is provided with that is adjacent to second bearing 226 of the first preferable enforcement.Therefore, the lubricant oil 25 that injects lubricated space 253 in this can be bored a hole via this and 254 be entered this outer lubricated space 260, and then can together lubricate this second bearing 226.

In the present embodiment, be formed with two perforation 254 on this oil storage end 252, also can form more a plurality of perforation 254 certainly, to reach the effect of quick circulation.What deserves to be mentioned is that because total discharge increases, can accelerate to take away associated component, as overrunning clutch 224, the heat that is produced add and can carry out pressure lubrication to this second bearing 226, so the life time of these assemblies also can prolong relatively.In addition, it should be noted that the change that the position is set owing to this oil sealing 227, its apparent size is also corresponding to some extent to be changed, main difference is all to have to reduce on the size of inside and outside footpath, therefore, the volume of this oil sealing 227 also dwindles thereupon, and integral rigidity then can promote to some extent, promptly when rotate this oil storage end 252, this oil sealing 227 can't produce torsional deformation because of the rotation of this oil storage end 252, therefore, can prevent effectively that oil liquid leakage from going out this oil sealing base 261.

Conclude above-mentionedly, vehicle transmission gear 2 of the present invention is that to utilize this bent axle 231 be to stretch out outside this capping 221, and then must stretch through and place this connection shaft 232, with effective minimizing assembly part number and promote the assembling convenience.In addition, cooperate this internal oil channel 237, crankpin 236, interior lubricated space 253 etc. to constitute the good internal oil passages design of glossy effects, make this overrunning clutch 224, this clutch shaft bearing 233, this second bearing 226, this wet clutch 222 ... Deng obtaining abundant, uniform glossy effect.Simultaneously, also can be further by these oil sealing base 261 formed outer lubricated spaces 260, and cooperate perforation 254 on this connection shaft 232, allow this lubricant oil 25 enter this outer lubricated space 260 from should interiorly lubricating space 253, with this second bearing 226 of pressure lubrication, effectively promote overall operation smooth degree and working life, so can reach effect purpose of the present invention really.

The above only is the present invention's preferred embodiment, can not limit scope of the invention process with this, and the simple equivalent of being done according to claim of the present invention and invention description content changes and modifies, and all still belongs in the scope that patent of the present invention contains.

Claims

1. vehicle transmission gear, comprise a crankcase unit, one in abutting connection with being arranged at the other clutch unit in this crankcase unit, one in abutting connection with being arranged at the other transmission case unit of clutch unit, an and lubricant oil that flows in this clutch unit and this crankcase unit, this crankcase unit has a crankcase, and one be placed in this crankcase and this clutch unit that stretches through in bent axle, this clutch unit has one and is arranged at this crankcase one side and defines the capping of a clutch chamber, one is arranged in this clutch chamber and can be driven the wet clutch that turns by this bent axle, and an overrunning clutch, it is characterized in that:

This bent axle has the outer protruding end portion of inserting in this transmission case unit of also extending of outstanding this capping, this crankcase unit has more a connection shaft that is arranged in this transmission case unit, this connection shaft has a protruding end portion and the local oil storage end of inserting in this capping of stretching around this bent axle, this oil storage end defines one and supplies the interior lubricated space that this overrunning clutch is ccontaining and supply this lubricant oil to be full of, what wherein, this overrunning clutch was the position in this oil storage end is positioned at part outside this capping relatively;

Its feature also is, this crankcase unit has more one and is folded in the protruding end portion outer surface of this bent axle and this connection shaft inner face and overlaps mutually oil storage end outer surface that clutch shaft bearing, between the place is folded in this capping inner face and this connection shaft and overlap mutually second bearing between the place, and one be adjacent to this second bearing and spill the oil sealing of this capping in order to prevent lubricant oil, and this overrunning clutch is that the position is between this first and second bearing.

2. according to the described vehicle transmission gear of claim 1, it is characterized in that, this crankcase unit has more one and is arranged in the oil storage end of this connection shaft and cover and is overlying on axial region sleeve in the protruding end portion of this bent axle, and the overrunning clutch of this clutch unit is that ring covers and places on this axial region sleeve side face.

3. according to the described vehicle transmission gear of claim 2, it is characterized in that this clutch unit has more an outer cover that is placed in this capping, this outer cover is that cover is overlying on this wet clutch outside, and rivets with the oil storage end of this connection shaft.

4. according to the described vehicle transmission gear of claim 3, it is characterized in that this clutch shaft bearing is a roller bearing.

5. according to the described vehicle transmission gear of claim 4, it is characterized in that, this transmission case unit has a transmission case, one is placed in this transmission case and can be subjected to the active rotating disk group of this bent axle driven rotary, one is placed in this transmission case and can be by the passive rotating disk group of this active rotating disk group driven rotary, one shape variable ground is around the V-shape belt that is arranged on this active rotating disk group and this passive rotating disk group, an and transmission shaft that can driven ground punching be arranged in this driven disc group, this active rotating disk group has a cover and is fixed on this connection shaft and the fixed tray of contiguous this crankcase unit, and one relatively be sheathed on slider disc on this connection shaft slippingly away from this crankcase unit and because of centrifugal action, this passive rotating disk group has one and overlaps the fixed tray that is fixed on this transmission shaft, one is sheathed on the slippage dish on this transmission shaft slippingly, and a spring that is arranged at this slippage dish one side.

6. according to the described vehicle transmission gear of claim 5, it is characterized in that the protruding end portion of the bent axle of this crankcase unit is the fixed tray that extends the active rotating disk group of this transmission case unit relatively.

7. according to the described vehicle transmission gear of claim 6, it is characterized in that, this bent axle has more the crankpin that departs from its central axis, and one extend and make this protruding end portion be the internal oil channel of open state along this central axial direction, this internal oil channel is to be communicated in this crankpin and should interiorly to lubricate the space, this lubricant oil is this crankpin inside of flowing through earlier after flowing into this internal oil channel, and should interiorly lubricate the space after this protruding end portion injects.

8. according to the described vehicle transmission gear of claim 7, it is characterized in that this bent axle has more one and is positioned at this protruding end portion and its internal diameter throttling element less than this internal oil channel internal diameter.

9. vehicle transmission gear, comprise a crankcase unit, one in abutting connection with being arranged at the other clutch unit in this crankcase unit, one in abutting connection with being arranged at the other transmission case unit of clutch unit, an and lubricant oil that flows in this clutch unit and this crankcase unit, this crankcase unit has a crankcase, and one be placed in this crankcase and this clutch unit that stretches through in bent axle, this clutch unit has one and is arranged at this crankcase one side and defines the capping of a clutch chamber, one is arranged in this clutch chamber and can be driven the wet clutch that turns by this bent axle, and an overrunning clutch, it is characterized in that:

This bent axle has the outer protruding end portion of inserting in this transmission case unit of also extending of outstanding this capping, this clutch unit has more an oil sealing base that connects this capping and extend towards this transmission case unit, this crankcase unit has more a connection shaft that is arranged in this transmission case unit, this connection shaft has a protruding end portion and the local oil storage end of inserting in this capping of stretching around this bent axle, this oil storage end defines one and supplies the interior lubricated space that this overrunning clutch is ccontaining and supply this lubricant oil to be full of, what this overrunning clutch was the position in this oil storage end is positioned at part outside this capping relatively, this crankcase unit has more one and is folded in the protruding end portion outer surface of this bent axle and this connection shaft inner face and overlaps mutually clutch shaft bearing between the place, the one oil storage end outer surface that is folded in this capping inner face and this connection shaft overlaps mutually second bearing between the place, and one between this oil sealing base ora terminalis and this oil storage end in order to preventing that lubricant oil from spilling the oil sealing of this oil sealing base, this overrunning clutch be between this first, between two bearings.

10. according to the described vehicle transmission gear of claim 9, it is characterized in that the oil sealing base of this clutch unit can be around defining an outer lubricated space.

11. according to the described vehicle transmission gear of claim 10, it is characterized in that, be formed with the perforation in this inside and outside lubricated space of at least one connection on the oil storage end of the connection shaft of this crankcase unit.

12. according to the described vehicle transmission gear of claim 11, it is characterized in that, this crankcase unit has more one and is arranged in the oil storage end of this connection shaft and cover and is overlying on axial region sleeve in the protruding end portion of this bent axle, and the overrunning clutch of this clutch unit is that ring covers and places on this axial region sleeve side face.

13., it is characterized in that this clutch unit has more an outer cover that is placed in this capping according to the described vehicle transmission gear of claim 12, this outer cover is that cover is overlying on this wet clutch outside, and rivets with the oil storage end of this connection shaft.

14., it is characterized in that this clutch shaft bearing is a roller bearing according to the described vehicle transmission gear of claim 13.

15. according to the described vehicle transmission gear of claim 14, it is characterized in that, this transmission case unit has a transmission case, one is placed in this transmission case and can be subjected to the active rotating disk group of this bent axle driven rotary, one is placed in this transmission case and can be by the passive rotating disk group of this active rotating disk group driven rotary, one shape variable ground is around the V-shape belt that is arranged on this active rotating disk group and this passive rotating disk group, an and transmission shaft that can driven ground punching be arranged in this driven disc group, this active rotating disk group has a cover and is fixed on this connection shaft and the fixed tray of contiguous this crankcase unit, and one relatively be sheathed on slider disc on this connection shaft slippingly away from this crankcase unit and because of centrifugal action, this passive rotating disk group has one and overlaps the fixed tray that is fixed on this transmission shaft, one is sheathed on the slippage dish on this transmission shaft slippingly, and a spring that is arranged at this slippage dish one side.

16., it is characterized in that the protruding end portion of the bent axle of this crankcase unit is the fixed tray that extends the active rotating disk group of this transmission case unit relatively according to the described vehicle transmission gear of claim 15.

17. according to the described vehicle transmission gear of claim 16, it is characterized in that, this bent axle has more the crankpin that departs from its central axis, and one extend and make this protruding end portion be the internal oil channel of open state along this central axial direction, this internal oil channel is to be communicated in this crankpin and should interiorly to lubricate the space, this lubricant oil is this crankpin inside of flowing through earlier after flowing into this internal oil channel, and should interiorly lubricate the space after this protruding end portion injects.

18., it is characterized in that this bent axle has more one and is positioned at this protruding end portion and its internal diameter throttling element less than this internal oil channel internal diameter according to the described vehicle transmission gear of claim 17.