CN201380934Y

CN201380934Y - Structure of motorcycle

Info

Publication number: CN201380934Y
Application number: CN200920007873U
Authority: CN
Inventors: 杨思待
Original assignee: Kwang Yang Motor Co Ltd
Current assignee: Kwang Yang Motor Co Ltd
Priority date: 2009-03-10
Filing date: 2009-03-10
Publication date: 2010-01-13
Anticipated expiration: 2019-03-10

Abstract

The utility model relates to a structure of a motorcycle, comprising a first belt transmission mechanism, a gear transmission mechanism, a second belt transmission mechanism and a rear shock absorber. A crankshaft of an engine of the motorcycle drives a rear wheel to rotate sequentially through the first belt transmission mechanism, the gear transmission mechanism and the second belt transmission mechanism; the second belt transmission mechanism is a dry belt transmission mechanism so as to facilitate the simplification of the transmission structure of the rear wheel; the rear shock absorber is horizontally assembled and combined with a rear tube body and a rear rocker of a main frame with an inclination angle; and the rear shock absorber is positioned in a storage box of the motorcycle and at the outer side face of the rear wheel so as to facilitate the reduction of the length of the motorcycle from front to back, increment of the longitudinal depth of the storage box and improvement of the utility ratio of the assembly space.

Description

The structure of motor bike

[technical field]

The utility model is the structure about a kind of motor bike, particularly about a kind of structure that can simplify assembled configuration and improve the motor bike of assembling space degree of utilization.

[background technology]

Now, motor bike has become the indispensable a kind of convenient vehicle of daily life.At present, most of motor bikes are as power resources by engine or electro-motor.If motor bike is when being provided with engine, this engine is to promote steam cylinder piston with burns gasoline to obtain power, and with the electric power of battery the auxiliary power during as starting ignition.Moreover the suitable drive structure of the essential collocation of this engine so that make the kinetic force that steam cylinder piston and crank shaft produced of this engine internal be passed to trailing wheel smoothly, causes trailing wheel to rotate and makes motor bike to overtake.Moreover the engine of motor bike and the postbrachium of the trailing wheel suitable suspension configurations of also need arranging in pairs or groups is to provide the vibrations buffering effect.Therefore, how to design suitable transmission and suspension configurations, also for manufacturing one of indispensable important technology of motor bike.

With existing scooter-type motorbike, it is the integrated oscillating type engine that the change-speed box with engine and rear end support trailing wheel is combined into one, and engine can swing up and down being assembled on the vehicle body frame freely.On the other hand, the sports type motor bike then is fixed on engine on the vehicle body frame, and with the postbrachium vehicle body frame that is assembled in moving up and down, by the chain that exposes driven by engine power is passed to trailing wheel in addition.

Yet in this kind scooter-type motorbike, the integrated oscillating type engine puts on car body because of the weight of engine and change-speed box can swing up and down, so when desire strengthens free air capacity, because along with its weight of increase of free air capacity more increases the weight of, cause that the spring set down weight increases the weight of and not proper.Moreover, in the sports type motor bike, because by the chain transferring power that exposes, so not only noise is big, degree of precision reduces and the life-span is also short, the frequency of maintenance is also added.

For overcoming the problems referred to above, No. 431976 novel patent of announcing TaiWan, China discloses a kind of actuating device of motor bike, it is to utilize an engine that is fixed on a vehicle body frame to support a pivot of the leading section of a postbrachium, and the rearward end of utilizing this postbrachium is supported a trailing wheel, in addition a dry type V-shape belt gearbox is configured in the crankcase of this engine, and the wet type retarder of a secondary driving device is assemblied in the inside of this postbrachium.Owing to this engine is fixed on the car body side, and this dry type V-shape belt speed machine is configured in the crankcase of this engine, thereby can alleviate the weight of this postbrachium side, and alleviate suspention spring set down weight.Moreover, because this secondary driving device is contained in this postbrachium inside, and need not to borrow the chain transferring power that exposes, so can improve degree of precision and increase the service life.

Moreover, the I254686 number novel patent of announcing TaiWan, China discloses a kind of rear shock absorber installation constitution of low-floor type vehicle, it is applied in the scooter-type motorbike of No. 431976 novel patent of bulletin, this motor bike is equipped with an engine below a low base plate, and a trailing wheel is configured in the summary center of a car body with rear shock absorber.Possessing below a seat cushion has a storage box, and length is same as the front and back length of this seat cushion generally before and after it.Be along coming this trailing wheel rear shock absorber of landscape configuration to the rear portion of a upper frame of back lower place extension below this storage box from a pipe.Whereby, enlarge the receiving space of the storage box that is arranged on the seat cushion below.

Yet, the transmission of No. 431976 and I254686 number novel patent announcement and suspension configurations still have following problems on reality is used, for example: though the wet type retarder of this secondary driving device is assemblied in the inside of this postbrachium, but still be to use gear and chain to carry out transmission, and the inside of this postbrachium must hold the lubricating oil of capacity, therefore can increase the overall weight of postbrachium, and chain still produces sizable noise.Because this postbrachium must be designed to complicated enclosed type construction and oil return structure in order to avoid therefore the lubricating oil seepage also is unfavorable for reducing the manufacturing and the maintenance cost of postbrachium, and can has the risk and the puzzlement of oil leaking pollution environment.Moreover, if with this trailing wheel with rear shock absorber be configured in the summary center of this car body and this storage box under, though can receiving space be amplified by the front and back length that increases storage box, but inevitably limit the vertical degree of depth of storage box and the whole front and back length of increase motor bike also, it is unfavorable for being applied in middle-size and small-size scooter motor bike.In addition and since this trailing wheel with rear shock absorber be configured in this storage box under, therefore must be provided with in the bottom surface of storage box and check with lid, so that this trailing wheel rear shock absorber of maintenance examination.But, the maintainer is difficult to the upward angle of visibility degree that covers this trailing wheel be carried out the maintain and replace action with rear shock absorber by the inspection of storage box, it is low not only to keep in repair convenience, and because of be provided with this inspection with the lid increase the manufacturing cost of motor bike relatively and sell price, be unfavorable for improving product competitiveness.

Die, be necessary to provide a kind of structure of motor bike, to solve the existing in prior technology problem.

[utility model content]

Main purpose of the present utility model is to provide a kind of structure of motor bike, wherein the crank shaft of engine rotates to drive trailing wheel via first belt gear, gear drive and second belt gear in regular turn, and second belt gear is the dry type belt gear, and then help simplifying the trailing wheel drive structure, alleviate rear arm weight, reduce trailing wheel transmission noise, and the manufacturing and the maintenance cost of reduction drive structure.

Secondary objective of the present utility model is to provide a kind of structure of motor bike, it is slightly to be rear shock absorber between the rear arm of the back body that is assembled in main car frame of level and trailing wheel with inclination angle slightly, and be positioned at the storage box of car body and the lateral surface of trailing wheel, can not conflict mutually with the storage box space, and then the vertical degree of depth, expansion Shock absorber size, raising Shock absorber maintenance convenience, increase assembling space degree of utilization, the lifting decorative appearance that help dwindling motor bike front and back length, increase storage box, and can provide stronger buffering and shock preventing power to reach the better traveling comfort that drives.

Another purpose of the present utility model is to provide a kind of structure of motor bike, it is the outside of selecting the Front-end Design of second belt gear is become to be positioned at rear arm, reach its rear end and be positioned at the inboard of rear arm, and then the pivot joint stability that helps improving belt maintenance convenience and increase rear arm.

In order to achieve the above object, the utility model provides a kind of structure of motor bike, it comprises a main car frame, an engine, a rear arm, a rear shock absorber and a trailing wheel, this main car frame is in order to fix this engine, this rear arm connects this engine and trailing wheel, it is characterized in that: this engine comprises: one first belt gear, its be subjected to this engine a crank shaft drive and rotate; And a gear drive, it is subjected to the drive of this first belt gear and rotates, and has a pivot; Moreover this rear arm nearby is provided with: one second belt gear, its be subjected to this gear drive pivot drive and rotate, and this second belt gear is the dry type belt gear, rotates in order to drive this trailing wheel; And this rear shock absorber, its front end are combined on the back body of this main car frame, reach its rear end and be combined on this rear arm, and this rear shock absorber is to be positioned at a storage box of this motor bike and the lateral surface of this trailing wheel.

In the structure of motor bike of the present utility model, this first belt gear is selected from V-shape belt transmission device or timing belt transmission device.

In the structure of motor bike of the present utility model, this gear drive is a train of reduction gears.

In the structure of motor bike of the present utility model, this second belt gear is selected from V-shape belt transmission device or timing belt transmission device.

In the structure of motor bike of the present utility model, this second belt gear has a belt, and it is to be the flute profile belt.

In the structure of motor bike of the present utility model, this second belt gear has a belt, and it is balata belt or metal belt.

In the structure of motor bike of the present utility model, this first belt gear is located at the engine internal of a side of this motor bike, and this second belt gear is located at the engine rear of the opposite side of this motor bike.

In the structure of motor bike of the present utility model, this second belt gear is positioned at the inboard of this rear arm.

In the structure of motor bike of the present utility model, the front end of this second belt gear is positioned at the outside of this rear arm, and its rear end is positioned at the inboard of this rear arm.

In the structure of motor bike of the present utility model, the back body of this main car frame is convexly equipped with one first carriage, to articulate this rear shock absorber.

In the structure of motor bike of the present utility model, this rear arm is convexly equipped with one second carriage, to articulate this rear shock absorber.

In the structure of motor bike of the present utility model, the pivoting point position of this second carriage and rear shock absorber is that the side-looking projection is in the tire scope of this trailing wheel.

In the structure of motor bike of the present utility model, this rear shock absorber is to be assembled between this back body and the rear arm with an inclination angle of omiting level.

[description of drawings]

Fig. 1: the combination of side view of the structure of the motor bike of the utility model first embodiment.

Fig. 2: the transverse sectional view of the drive structure of the motor bike of the utility model first embodiment.

Fig. 3: the lateral plan of the suspension configurations of the motor bike of the utility model first embodiment.

Fig. 4: the combination of side view of the structure of the motor bike of the utility model second embodiment.

1 main car frame, 10 headstock bodys

Body 12 back bodys before 11

121 first carriages, 13 lower tube bodies

14 seat cushions, 15 storage boxes

2 engines, 21 crankcases

211 crank shafts, 22 cylinder heads

221 pistons, 3 rear arms

31 hind axles, 32 second carriages

4 trailing wheels, 5 first belt gears

51 drive pulley groups, 52 belts

53 by running block 6 gear drives

61 axle drive shafts, 611 driven wheels

62 reducing gear, 63 pivots

631 ring gears, 7 second belt gears

71 driven wheels, 72 belts

73 ring gears, 8 rear shock absorbers

The A inclination angle

[specific embodiment]

For above-mentioned and other purpose of the present utility model, feature, advantage can be become apparent, hereinafter will be especially exemplified by the utility model preferred embodiment, and cooperate appended graphicly, be described in detail below.

Please refer to Figure 1 and Figure 2, the structure of the motor bike of the utility model first embodiment roughly comprises a main car frame 1, an engine 2, a rear arm 3 and a trailing wheel 4, one first belt gear 5, a gear drive 6, one second belt gear 7 and a rear shock absorber 8, simultaneously the utility model will omit this motor bike other commonly use structure, will not describe in detail one by one.Moreover, the utility model is that headstock and tailstock direction with motor bike is forward and backward side's benchmark in the orientation terms of hereinafter mentioning such as front, back, left, right, up, down, other orientation terms are benchmark with the left and right, upper and lower of general motor bike running condition also, it only is to be used for the assembled relation of aid illustration associated components for an above-mentioned orientation term, be not to be used for limiting the utility model, in this close chat earlier bright.

Please refer to shown in Figure 1ly, the main car frame 1 of the utility model first embodiment is the existing structure of motor bike, and it is in order to support each part of motor bike.In the utility model, this main car frame 1 roughly comprises: a headstock body 10 has the headstock mechanism (indicate) of front-wheel in order to pivot joint; Body 11 before a pair of, by this headstock body 10 downwards and rearward extend and form; A pair of back body 12, the extension that slightly is level backward by this preceding body 11 forms; And a pair of lower tube body 13, be positioned at the below of this preceding body 11, and by this headstock body 10 downwards and rearward extend and form.This back body 12 is the belows that are positioned at a seat cushion 14, and be centered around a storage box 15 around.Moreover this engine 2 is to utilize suitable mode (for example spiral shell is solid or welding) to be fixed between preceding body 11, back body 12 and the lower tube body 13 of this main car frame 1.The outside of this engine 2 roughly comprises: a crankcase 21, and between this back body 12 and lower tube body 13, and its inside has a crank shaft 211; And a cylinder head 22, between this preceding body 11 and lower tube body 13, and its inside has several pistons 221.This cylinder head 22 only is the slight shape that is inclined upwardly towards headstock the place ahead and with respect to the level of motor bike, so as to reducing the assembled height that this engine 2 takies.In addition, this rear arm 3 is between this engine 2 and trailing wheel 4, and the rear end of this rear arm 3 has a hind axle 31, to support this trailing wheel 4.

Please refer to Figure 1 and Figure 2, first belt gear 5 of the utility model first embodiment is the forebodys that are positioned at the crankcase 21 of this engine 2.In the utility model, this first belt gear 5 can be selected from V-shape belt transmission device or timing belt transmission device, the preferable belt gear that is selected from CVT (continuous variable transmission) nothing section automatic speed-changing system or ECVT (electronic continuous variable transmission) the electronic type section of nothing automatic speed-changing system.In the present embodiment, this first belt gear 5 is the V-shape belt transmission device, and it roughly comprises: a drive pulley group 51, be positioned at the front end of this first belt gear 5, and be subjected to this engine 2 crank shaft 211 drive and rotate; One belt 52, it can be selected from balata belt or metal belt, and can be the pattern of flute profile belt, and its front end is set around this drive pulley group 51, and is subjected to the drive of this drive pulley group 51 and rotates; Reach one by running block 53, be positioned at the rear end of this first belt gear 5, the rear end of this belt 52 is set around this by on the running block 53, to drive this is driven rears by running block 53 gear drive 6.

Please refer to Fig. 1,2 and shown in Figure 3, the gear drive 6 of the utility model first embodiment also is positioned at crankcase 21 latter half of of this engine 2.This gear drive 6 is the existing structure of motor bike, its preferable train of reduction gears that is selected from, and roughly comprise: an axle drive shaft 61, be positioned at the front end of this gear drive 6, and with being combined of this first belt gear, 5 rear ends by running block 53, and rotated by the drive of running block 53 by this, have a driven wheel 611 on this axle drive shaft 61; At least one reducing gear 62, it is and being meshed of the driven wheel 611 of this axle drive shaft 61; And a pivot 63, be positioned at the rear end of this gear drive 6, have a ring gear 631 on this pivot 63, this ring gear 631 combines with this reducing gear 62, and is subjected to the drive of this ring gear 631 and rotates.

Referring again to Fig. 1,2 and shown in Figure 3, second belt gear 7 of the utility model first embodiment is to be located near this rear arm 3, for example is positioned at the inboard of this rear arm 3.In the present embodiment, this first belt gear 5 is located at engine 2 inside of a side (for example right side) of motor bike, reach this second belt gear 7 and be located at engine 2 rears in the opposite side of motor bike (for example left side), this first belt gear 5 drives these second belt gears 7 via this gear drive 6.In the utility model, this second belt gear, 7 optional self-drying type V-shape belt transmission devices or dry type timing belt transmission device.In the present embodiment, this second belt gear 7 is a dry type timing belt transmission device, and it roughly comprises: a driven wheel 71 is positioned at the front end of this second belt gear 7, and be combined on the pivot 63 of this gear drive 6, be subjected to the drive of this pivot 63 and rotate; One belt 72, it can be selected from balata belt or metal belt, and can be the pattern of flute profile belt, and its front end is set around this driven wheel 71, and is subjected to the drive of this driven wheel 71 and rotates; Reach a ring gear 73, be positioned at the rear end of this second belt gear 7, and rotating being combined on this hind axle 31, the rear end of this belt 72 is set around on this ring gear 73, drives this trailing wheel 4 rotations to drive this ring gear 73.In the utility model, the crank shaft 211 of this engine 2 rotates to drive this trailing wheel 4 via this first belt gear 5, gear drive 6 and second belt gear 7 in regular turn, and this second belt gear 7 is dry type belt gears, thereby help simplifying this trailing wheel 4 drive structure, alleviate this rear arm 3 loading, reduce the transmission noise of this trailing wheel 4, and the manufacturing and the maintenance cost of reduction drive structure.

Referring again to Fig. 1,2 and shown in Figure 3, the rear shock absorber 8 of the utility model first embodiment is the existing structure of motor bike, but the utility model is with following Fang Shu this rear shock absorber 8 to be assembled on the preferable relative position.In the utility model, the front end of this rear shock absorber 8 is to be combined on the back body 12 of this main car frame 1, reach its rear end and be combined on this rear arm 3, and this rear shock absorber 8 is to be positioned at the storage box 15 of this motor bike and the lateral surface of trailing wheel 4 (for example left side).More in detail, the back body 12 of this main car frame 1 is convexly equipped with one first carriage 121, to articulate this rear shock absorber 8; Simultaneously, this rear arm 3 is convexly equipped with one second carriage 32, to articulate this rear shock absorber 8.Shown in the lateral plan of Fig. 3, the pivoting point position (indicating) of this second carriage 32 and rear shock absorber 8 but be preferably the side-looking projection in the tire scope of this trailing wheel 4.This rear shock absorber 8 is preferably with a slight inclination angle A and slightly is being assembled between this back body 12 and the rear arm 3 of level, this inclination angle A can change because of the elastic compression or the elastic reset of this rear shock absorber 8, but this inclination angle A is between 30 degree between 1 degree with respect to horizontal angle, preferable between 1 degree is spent to 15, particularly between 1 degree is spent to 10.Because this rear shock absorber 8 is assembled in the mode that slightly is level and is positioned at the storage box 15 of car body and the lateral surface of trailing wheel 4, so can not conflict mutually, and then help dwindling motor bike front and back length, the vertical degree of depth that increases this storage box 15, expansion Shock absorber size, raising Shock absorber maintenance convenience, increase assembling space degree of utilization, lifting decorative appearance with the space of this storage box 15.Particularly, when the length of extending when these rear shock absorber 8 front and back increases, the utility model can provide stronger buffering and shock preventing power, so that the better traveling comfort that drives to be provided.

Please refer to shown in Figure 4, the structure of the motor bike of the utility model second embodiment is similar in appearance to the utility model first embodiment, and continue to use same reference numbers, but difference is characterised in that between the two: this second embodiment is a shape of selecting to change this rear arm 3, the Front-end Design of this second belt gear 7 is become to be positioned at the outside of this rear arm 3, and back end design becomes to be positioned at the inboard of this rear arm 3.Based on above-mentioned design, drop or during essential maintain and replace, will help improving the maintenance convenience of this second belt gear 7 when the belt of this second belt gear 7 gets loose.Moreover the front end that above-mentioned design also can reduce this rear arm 3 relatively is articulated in the span width of this pivot 63, so also can increase the pivot joint stability of this rear arm 3.

As mentioned above, compared to existing drive structure the wet type retarder is assemblied in postbrachium inside, and use gear and chain to carry out transmission, thereby generation noise and shortcomings such as unfavorable reduction manufacturing and maintenance cost, and existing suspension configurations with trailing wheel with rear shock absorber be configured in the summary center of car body and storage box under, can cause increases before and after motor bike whole length and is difficult to trailing wheel carried out with rear shock absorber problem such as maintain and replace, the crank shaft 211 of the engine of the present utility model 2 of Fig. 1 to Fig. 4 is in regular turn via this first belt gear 5, the gear drive 6 and second belt gear 7 rotate to drive this trailing wheel 4, and this second belt gear 7 is dry type belt gears, thereby help simplifying the drive structure of this trailing wheel 4, alleviate the loading of this rear arm 3, reduce the transmission noise of this trailing wheel 4, and the manufacturing and the maintenance cost of reduction drive structure.Moreover, because this rear shock absorber 8 is assembled in the mode that slightly is level and is positioned at the storage box 15 of car body and the lateral surface of trailing wheel 4, so can not conflict mutually, and then help dwindling motor bike front and back length, the vertical degree of depth that increases this storage box 15, expansion Shock absorber size, raising Shock absorber maintenance convenience, increase assembling space degree of utilization, lifting decorative appearance with the space of this storage box 15.Particularly, when the length of extending when these rear shock absorber 8 front and back increases, the utility model can provide stronger buffering and shock preventing power, so that the better traveling comfort that drives to be provided.

Though the utility model discloses with preferred embodiment; right its is not in order to restriction the utility model; any personage who has the knack of this skill; in not breaking away from spirit and scope of the present utility model; when doing various changes and modification, therefore protection domain of the present utility model is as the criterion when looking the claim person of defining.

Claims

1. the structure of a motor bike comprises: a main car frame, an engine, a rear arm, a rear shock absorber and a trailing wheel, and this main car frame is in order to fix this engine, and this rear arm connects this engine and trailing wheel, it is characterized in that:

Comprise in this engine:

One first belt gear, its be subjected to this engine a crank shaft drive and rotate; And

One gear drive, it is subjected to the drive of this first belt gear and rotates, and has a pivot;

This rear arm nearby is provided with:

One second belt gear, its be subjected to this gear drive pivot drive and rotate, and this second belt gear is the dry type belt gear, rotates in order to drive this trailing wheel; And

This rear shock absorber, its front end are combined on the back body of this main car frame, reach its rear end and be combined on this rear arm, and this rear shock absorber is to be positioned at a storage box of this motor bike and the lateral surface of trailing wheel.

2. the structure of motor bike as claimed in claim 1, it is characterized in that: this first belt gear is selected from V-shape belt transmission device or timing belt transmission device.

3. the structure of motor bike as claimed in claim 1, it is characterized in that: this gear drive is a train of reduction gears.

4. the structure of motor bike as claimed in claim 1, it is characterized in that: this second belt gear is selected from V-shape belt transmission device or timing belt transmission device.

5. as the structure of claim 1 or 4 described motor bikes, it is characterized in that: the belt in this second belt gear is the flute profile belt.

6. as the structure of claim 1 or 4 described motor bikes, it is characterized in that: the belt in this second belt gear is balata belt or metal belt.

7. the structure of motor bike as claimed in claim 1, it is characterized in that: this first belt gear is located at the engine internal of a side of this motor bike, and this second belt gear is located at the engine rear of the opposite side of this motor bike.

8. the structure of motor bike as claimed in claim 1, it is characterized in that: this second belt gear is positioned at the inboard of this rear arm.

9. the structure of motor bike as claimed in claim 1, it is characterized in that: the front end of this second belt gear is positioned at the outside of this rear arm, and its rear end is positioned at the inboard of this rear arm.

10. the structure of motor bike as claimed in claim 1, it is characterized in that: the back body of this main car frame is convexly equipped with one first carriage, to articulate this rear shock absorber.

11. the structure as claim 1 or 10 described motor bikes is characterized in that: this rear arm is convexly equipped with one second carriage, to articulate this rear shock absorber.

12. the structure of motor bike as claimed in claim 11 is characterized in that: the pivoting point position of this second carriage and rear shock absorber is that the side-looking projection is in the tire scope of this trailing wheel.

13. the structure of motor bike as claimed in claim 1 is characterized in that: this rear shock absorber is to be assembled between this back body and the rear arm with an inclination angle of omiting level.