CN2238196Y - Front wheel driving device for motorcycle - Google Patents

Abstract

The utility model relates to a front wheel driving device for motorcycles, comprising a power driving shaft (G), a transfer gear wheel (I), and a front wheel driver. The original power driving the engine of the back wheel of the motorcycle is transferred to the transfer gear wheel (I) by the power driving shaft (G), and the front wheel driver is driven the transfer gear wheel (I) to drive a front wheel (W). The utility model can be widely used as the front wheel driver of vehicles with single front wheels such as two wheel motorcycles and three wheel motorcycles. The utility model has the advantage of simple structure.

Description

The front-wheel drive of motor bike

What the present invention relates to is a kind of front-wheel drive that is used to drive the motor bike of motorcycle front-wheel.

In present technology, advancing of motor bike all is to be realized by its independent back-wheel drive device, this motor bike is at general ground equal energy cruising, but if run into as abominable ground, wilderness such as desert, Gobi desert, because of its front-wheel can not rotate, tend to occur front-wheel and become silted up to fall into phenomenon such as be obstructed, direction can not be stablized.And such as high-level motor bikes such as racing cars, the also good and higher inertia that the speed of a motor vehicle produced of devices such as the damping of skill by driver's exquisiteness and motor bike self, braking and tire special just makes it show the off-road capability of the obstacle crossing that general motor bike can not show.But because of the cross-country motorcycle on the true nature requires to have the synchronous double-drive device of front and back wheel, so in fact this motor bike does not have cross-country function.Up to the present, do not see as yet in the world wide that the motor bike that has cross-country function on the true nature comes out.

The objective of the invention is provides a kind of front-wheel drive on the motor bike basis of existing back-wheel drive, make motor bike have the synchronous double-drive device of front and back wheel, thereby make motor bike possess cross-country function in essence.It can as on common ground in the desert, cruising on the abominable ground, wilderness such as Gobi desert falls into and the front-wheel what can not occur, direction such as can not stablize at phenomenon.

As everyone knows, the steering swivel system of motor bike and vehicle frame are not a fixing integral body in the prior art, but the sleeve of direction lever by steering swivel system and vehicle frame front end connects in the pivot pin mode, so the front fork on the steering swivel system, preceding thick stick, the whippletree gone up on lower linking plate and the vehicle frame all do not have relative displacement with respect to the direction lever of pivot pin effect.Concrete solution is to be that center shaft is provided with a transfer effect gear with the direction lever on the yoke plate plane of steering swivel system, one f-w-d device is set on steering swivel system again, this actuator on front fork by gear and above-mentioned transfer effect gear inosculation, again in the perpendicular at the whippletree of vehicle frame or Qian Gang place, on whippletree or preceding thick stick, be parallel to this car thick stick and fix a power drive shaft, this transmission shaft by gear with straight bevel gear mode and above-mentioned transfer gear inosculation.From the driving engine that drives trailing wheel, power is guided on the power drive shaft (because of power drive shaft is fixed on the car thick stick, so this is introduced power and is easy to realize in mechanical field), by the transfer gear power is passed to the f-w-d device that is subjected to the transfer gearing again and drive front-wheel, thereby reach the purpose of driven in synchronism front and back wheel.In the above-mentioned solution, be that the transfer effect gear of center shaft can be installed on the direction lever beyond the upper and lower yoke plate of steering swivel system with the direction lever, also can be installed in, on the direction lever between lower linking plate; And the mode of power being passed to transfer effect gear has two kinds; The one, in vehicle frame whippletree or preceding thick stick (is a thick stick because of some motor bike) place perpendicular, be parallel to this car thick stick, power drive shaft is fixed on the outside of the whippletree or the preceding thick stick of vehicle frame, the 2nd, power drive shaft is fixed in the whippletree or preceding thick stick of vehicle frame, promptly be fixed on the inside of steel pipe; Moreover the f-w-d device has four kinds of structures, wherein has three kinds to be to adopt axle to drive, and specifically is to be parallel to front fork tube in plane, two front fork tube places, axle drive shaft is fixed on the outside (comprising the outside and inboard) of front fork tube; The 2nd, axle drive shaft is fixed in the front fork tube; The 3rd, by front fork double as axle drive shaft power is passed to front vehicle wheel; Another kind of structure is to adopt chain drive.

Because, f-w-d power is provided simultaneously by the driving engine that drives trailing wheel in the above-mentioned solution, adopted the structure of gearing shaft or chain in the transmission in addition, realize the two synchronously transmitting ratios accurately that drive of front and back wheel easily, and it is simple in structure, when especially all adopting gear transmission axle construction, make complete vehicle structure compact more.When particularly transmission shaft being installed in the steel pipe of vehicle frame or front fork, not going out on the surface than general motor bike increases part, is unlikely the increase volume, is convenient to existing motor bike repacking, and exceeds and increase the repacking fund.

Below in conjunction with drawings and Examples the present invention is described in further detail:

Fig. 1 is the structural plan figure of a kind of embodiment of the front-wheel drive of motor bike of the present invention.

Fig. 2 is a structure mansion view embodiment illustrated in fig. 1.

Fig. 3 is a structure left view (that is structural plan figure of a kind of embodiment of f-w-d device) embodiment illustrated in fig. 1.

Fig. 4-the 6th, the structural plan figure of several embodiment of the f-w-d device of the front-wheel drive of motor bike of the present invention.

Fig. 7 is the partial enlarged drawing of above-mentioned Fig. 6.

Fig. 8 is the structural plan figure that a kind of f-w-d device adopts chain-drive embodiment.

Fig. 9-the 11st, transfer gear in the front-wheel drive of motor bike of the present invention and power drive shaft lay respectively at the diverse location structural plan figure of identical several embodiment mutually.

Figure 12, the 13rd, the identical structural plan figure of the transfer gear of other two kinds of structures and power drive shaft (G).

Shown in Fig. 1,2,3, the steering swivel system of existing motor bike does not all have relative displacement so connect direction lever (D) in the pivot pin mode with respect to front fork, upper and lower yoke plate (F, E) and the whippletree (A) of vehicle frame, preceding thick stick (B) by the sleeve (C) of direction lever (D) between its upper and lower yoke plate (F, E) and vehicle frame front end.Transfer gear (I) is on the last plane of the center shaft upper connective plate (F) that is positioned at steering swivel system with direction lever (D), (hereinafter to be referred as transfer gear I) power drive shaft (G) is positioned at the perpendicular at vehicle frame whippletree (A) place and is parallel to whippletree (A) (hereinafter to be referred as power drive shaft G) and is fixed on above the whippletree (A) of vehicle frame by bearing seat (H), and it is identical with straight bevel gear mode and transfer gear (I) by gear (L), the structure of coincideing mutually when transfer gear (I) and power drive shaft (G) also have several diverse location respectively, after will elaborate in conjunction with the accompanying drawings), the other end of power drive shaft (G) connects (not drawing among the figure) by a power-transfer clutch and the power output wheel that drives the driving engine of trailing wheel.Front wheel driving shaft (S) is positioned at plane, two front fork places, and be parallel to front fork tube (then claim front wheel driving shaft S) and be installed in the inboard of front fork tube (front wheel driving shaft also has several different positions, after other is explained), its underpart is fixed on by bearing seat (Y) on the sleeve (P) of front fork, and is identical in the straight bevel gear mode by the gear (V) (hereinafter to be referred as gear V) of the single direction ratchet mechanism on its lower end gear (U) and the front-wheel.The top of axle drive shaft (S) is passed from upper and lower yoke plate (F, E), and gear (R) is mounted thereon the top, is subjected to transfer gear (I) effect.For the damping that cooperates front fork tube is stretched, on, lower linking plate (F, E) fixedly the mode of front wheel driving shaft (S) adopts no inner-ring bearing to fix, so that axle drive shaft (S) is promptly rotatable, also can move axially, but the gear (R) on axle drive shaft (S) top should be thicker than the gear that matches with it simultaneously, in case cause breaking away between gear because of moving axially of axle drive shaft (S), or adopt front wheel driving shaft (S) to connect with keyway mode and gear (R), so that axle drive shaft (S) does not break away from gear (R) effect when moving axially, gear this moment (R) need not thickeied, the perhaps fixing plain shaft bearing that all adopts, at lower linking plate (E) between bearing seat (Y) axle drive shaft (S) being disconnected, be designed to bayonet socket mode such as inside and outside plug-in type keyway and connect, gear this moment (R) need not thickeied yet.Power is passed to transfer gear (I) by transmission shaft (G) by gear (L) through power-transfer clutch, by transfer gear (I) power is passed to the gear (R) on front wheel driving shaft (S) top again, then by the gear (V) on gear (U) the effect front vehicle wheel (W) of front wheel driving shaft (S) and lower end thereof, rotate thereby drive front vehicle wheel.Above-mentioned front wheel driving shaft (S) also can be installed in the outside of front fork tube, and gear this moment (V) also should be in the outside of front fork tube.Front vehicle wheel (W) and gear (V) are fixed on the axletree (X), and the three can rotate simultaneously, and bearing axle tree (X) is installed in the front fork tube lower end.And the also available above-mentioned several connecting modes of gear (R), the front wheel driving shaft (S) that is installed in the lower plane bottom of (F, E) and lower linking plate (E) between upper and lower yoke plate is respectively gone up with gear (R) identical, when detailed description (illustrating when stressed during these two kinds of positions of gear (R) will be positioned at diverse location at the transfer gear of back).

Shown in Figure 4 is that a kind of front wheel driving shaft (S) is installed in the structural plan figure in the front fork tube.Front wheel driving shaft (S) is fixed in the front fork tube by bearing seat (Y), the lower end of front fork is fixed on the axletree (X) by the lateral wall of front fork tube, also can adopt the madial wall of front fork tube to be fixed on the axletree (X), it is the same when the change of the dependency structure of its lower end is positioned at the front fork tube outside with the axle drive shaft in the above embodiments (S), this kind structure middle gear (R) is unsuitable for being installed on the axle drive shaft (S) below the lower linking plate, other structure is with the structure of above-mentioned embodiment, several relevant situation in the foregoing description are arranged too, and this no longer describes in detail.

Figure 5 shows that an embodiment of front wheel driving shaft (S) double as front fork.As scheming: upper and lower yoke plate (F, E) fixedly front wheel driving shaft (S) adopts no inner-ring bearing, so that axle drive shaft is promptly rotatable, also can move axially.Bearing (1) is fixed on the following axle drive shaft (S) of lower linking plate (E), and damping pressure spring (Q) is enclosed within on the axle drive shaft (S), and two ends are pressed on the outer ring of the bearing that is acted on.The bottom of axle drive shaft (S) connects by bearing seat (2) and auxiliary front fork tube (3), and axle drive shaft (S) can rotate in bearing seat (2), can not move axially.Auxiliary front fork tube (3) also can be installed in the inboard of front fork tube, structure when this moment, fore wheel structure was installed in the front fork tube outside with axle drive shaft (S) among the above-mentioned embodiment.Gear (R) can be installed between the upper and lower yoke plate (F, E) on axle drive shaft (S) top and on the axle drive shaft (S) below the lower linking plate (E) equally, and is subjected to the transfer gearing.Can also be fixed on bearing (1) on the axle drive shaft (S) between upper and lower yoke plate, pressure spring (Q) acts on upper connective plate (F) and bearing (1).

Structural plan figure and the partial enlarged drawing thereof of an embodiment when Fig. 6,7 adopts sleeve structure to drive for actuator.As seen from the figure, transfer gear (I) is positioned on the lower plane of lower linking plate (E), and front fork stem (5) is fixedly secured by upper and lower yoke plate (F, E), can not rotate, and can not move axially.Sleeve (P) is divided into upper and lower two parts, and its top is fixed on the middle part of the front fork stem (5) of front fork effect by its in-to-in bearing (4), and gear (R) is positioned at the upper end of this top sleeve, is subjected to transfer gear (I) effect.The epimere of the lower part of sleeve (P) (amplifying shown in Figure 7) is fixed on the bottom of front fork stem (5) by its in-to-in no inner-ring bearing (K).There is a retaining head lower end of this front fork stem (5), so that this sleeve (P) lower part is promptly rotatable, also can moves axially and is unlikely to take off.The outer rim of the hypomere of this lower part sleeve has the gear (V) on gear (U) and the front vehicle wheel (W) to coincide, and inside will assist front fork tube (3) to be fixed on the hypomere of this lower part sleeve pipe by bearing (T).Auxiliary front fork tube (3) lower end is fixed on the axletree (X), and the upper end goes out bearing (T) also one grade of head.Between the in-to-in two retaining heads of this lower part sleeve, damping pressure spring (Q) is arranged.Two parts up and down of sleeve (P) adopt the mode of keyway bayonet socket to connect, and break away between unlikely flexible two parts of damping because of front fork.Power is passed to gear (R) by transfer gear (I), the top of effect sleeve (P), and by bayonet-action lower part sleeve, thereby drive front vehicle wheel (W).Front fork stem (5) and auxiliary front fork tube (3) are all motionless, and two front fork dampings are synchronous.Also sleeve (P) can be designed to a whole tube, its underpart assists front fork tube (3) with above-mentioned connection, just front fork stem (5) all adopts no inner ring gear to fix in sleeve (P) lining, go up cover one damping pressure spring (Q) at the front fork stem (5) of sleeve (P) upper end, its upper end withstands on the lower linking plate (E), the lower end is pressed on the outside race on last top of drive sleeve, and gear is not thickeied, and effect is identical.

Fig. 8 is the structural plan figure that a kind of f-w-d device adopts the embodiment of chain structure.As figure in plane, two front fork tube places, the power of gear (R) vertical direction is become the power of horizontal direction by helical wheel structure or conical gear changing of design, and this gear wheel shaft is horizontally fixed on bearing that upper and lower yoke plate (F, E) is gone up or two front fork tubes on, and chain pitch wheel (N) is installed on this axle.Drive preceding front vehicle wheel (W) by chain (Z), flexible for the damping that cooperates front fork tube, in transmission, chain tensioner sprocket can be set.

The embodiment of above-mentioned several f-w-d devices for sake of convenience, is the f-w-d of a side, also can adopt identical or different drive configuration that the both sides sync driver is installed according to actual conditions in the reality, and principle is identical, no longer explains.

Among the embodiment, except that transfer gear (I) is positioned on the last plane of upper connective plate (F) and power drive shaft (G) is positioned at whippletree (A) top of vehicle frame, transfer gear (I) also can be positioned between upper and lower yoke plate (F, E) or on the lower plane of lower linking plate (E), power drive shaft (G) is installed in whippletree (A) lining of vehicle frame and the inside and outside of preceding thick stick (B), and coincideing mutually during below in conjunction with both diverse location elaborates to both.

Shown in Figure 9, transfer gear (I) is installed on the last plane of upper connective plate (F), and power drive shaft (G) is fixed on whippletree (A) the inside of the vehicle frame that steel pipe makes by bearing (H), and both coincide in the straight bevel gear mode by gear (L).Vehicle frame whippletree (A) only by its down tube wall be connected with vehicle frame sleeve pipe (C), this point can be reinforced etc. in its lower section in the reality.Also can adopt this mode that power is introduced.

Shown in Figure 10, transfer gear (I) is installed on the lower plane of lower linking plate (E), power drive shaft (G) by bearing seat (H) be fixed on thick stick (B) before the vehicle frame below, both coincide in the straight bevel gear mode by gear (L).Power thick stick (B) before the vehicle frame is introduced the inside that this transmission shaft (G) power drive shaft this moment (G) also can be installed in the preceding thick stick (B) of vehicle frame as above-mentioned figure (9) method.

Shown in Figure 11, transfer gear (I) is a Ring gear, and the lower plane that is installed in upper connective plate (F) is to the direction lever (D) between the upper end of vehicle frame sleeve (C).Power drive shaft (G) is installed on the vehicle frame whippletree (A), coincide by gear (L) and transfer gear (I), and by gear (J) transmission of power to upper and lower yoke plate (F, E) or on the gear (R) upper and lower yoke plate.Same power drive shaft (G) also can be installed in the vehicle frame whippletree (A) and coincide with transfer gear (I), and transfer gear (I) direction lever (D) that is installed on last plane to vehicle frame sleeve (C) lower end of lower linking plate (E) go up with power drive shaft (G) lay respectively at vehicle frame preceding thick stick (B) below or identical during the inside, transmission of power to the upper and lower yoke plate or two yoke plates between gear (R) on.

Shown in Figure 12, power drive shaft (G) is installed in above the vehicle frame whippletree (A), transfer gear wheel shaft (M) passes in direction lever (D), all there is transfer gear (I) at its two ends, transfer gear wheel shaft (M) all can relatively rotate and not disturb mutually with respect to vehicle frame sleeve (C) with respect to direction lever (D), vehicle frame sleeve (C) and direction lever (D), transfer gear (I) by the one end coincide with gear (L) on the power drive shaft (G) of diverse location, power pass on the upper and lower yoke plate (F, E) or two yoke plates between gear (R) on.

Shown in Figure 13, power drive shaft (G) is installed in above the vehicle frame whippletree (A), outside at direction lever (D), in the tube of vehicle frame sleeve (C), one sleeve (O) is set, promptly this moment, structure was that the outside of direction lever (D) has two-layer sleeve, outermost layer is vehicle frame sleeve (C), this inner layer sleeve (O) acts on direction lever (D) by steel ball, outer wall acts on vehicle frame sleeve (C) by steel ball, make direction lever (D) and inner layer sleeve (O) each other and both are all free to rotate with respect to outer field vehicle frame sleeve (C), do not disturb mutually, outer layer sleeve (C) all is longer than at these inner layer sleeve two ends, transfer gear (I) is installed on the two ends of inner layer sleeve (O) respectively for Ring gear, transfer gear (I) by the one end coincide with the power drive shaft (G) of diverse location and the transfer gear by its other end, transmission of power to last lower linking plate (F, E) on or on the gear (R) between two yoke plates.

The present invention is applicable to any two-wheeled, single front-wheel vehicle front-wheel such as three-wheel drives, because a direction of front fork application force forward can be given in ground during f-w-d, and car has direction resistance backward to front fork in ground when advancing simultaneously, two force directions are opposite, making a concerted effort is zero, so front fork tube can be not crooked and science more when advancing.According to sample car test, can cruising when 360 kilometers of speed per hours, can cross vertical obstacle and normally not Reduced Speed Now on desert, Gobi desert during when speed in office less than the front-wheel radial height.The vehicle of big discharge capacity such as suitable racing car is installed.

Claims (20)

1, a kind of front-wheel drive of motor bike, constitute by power drive shaft (G) transfer gear (I) and f-w-d device, it is characterized in that: power drive shaft (G) is positioned at the perpendicular at preceding thick stick of car or whippletree place, and be installed in parallel on the car thick stick with this car thick stick, transfer gear (I) is that center shaft is installed on the yoke plate of steering swivel system with direction lever (D), the f-w-d device is positioned on the steering swivel system, be subjected to transfer gear (I) effect by gear (R), f-w-d device effect front vehicle wheel (W), power drive shaft (G) acts on transfer gear (I).

2, the front-wheel drive of motor bike according to claim 1 is characterized in that: power drive shaft (G) is positioned at above the whippletree (A) of vehicle frame.

3, the front-wheel drive of motor bike according to claim 1 is characterized in that: power drive shaft (G) is positioned at whippletree (A) the inside of vehicle frame.

4, the front-wheel drive of motor bike according to claim 1 is characterized in that: power drive shaft (G) is positioned at below the preceding thick stick (B) of vehicle frame.

5, the front-wheel drive of motor bike according to claim 1 is characterized in that: power drive shaft (G) is positioned at the preceding thick stick (B) of vehicle frame the inside.

6, the front-wheel drive of motor bike according to claim 1 is characterized in that: transfer gear (I) is installed in the upper connective plate (F) of steering swivel system and goes up on the plane.

7, the front-wheel drive of motor bike according to claim 1 is characterized in that: transfer gear (I) is positioned on the lower plane of lower linking plate (E) of steering swivel system.

8, the front-wheel drive of motor bike according to claim 1 is characterized in that: transfer gear (I) is positioned at the upper connective plate (F) of steering swivel system to the direction lever (D) between vehicle frame direction sleeve pipe (C) upper end.

9, the front-wheel drive of motor bike according to claim 1 is characterized in that: transfer gear (I) is positioned at the lower linking plate (E) of steering swivel system to the direction lever (D) between vehicle frame direction sleeve pipe (C) lower end.

10, the front-wheel drive of motor bike according to claim 1 is characterized in that: the transfer gear is a Ring gear, is installed in the two ends of inner layer sleeve (O).

11, according to the front-wheel drive of claims 1 or 10 described motor bikes, it is characterized in that: inner layer sleeve (0) is enclosed within the outside of direction lever (D), vehicle frame direction sleeve (C) is enclosed within the outside of inner layer sleeve (0), and vehicle frame direction sleeve (C) all is longer than at the inner layer sleeve two ends.

12, the front-wheel drive of motor bike according to claim 1 is characterized in that: transfer gear (I) is installed in the two ends that are positioned at the transfer gear wheel shaft (M) in direction lever (D) axial hole, and the transfer gear wheel shaft rotates with respect to direction lever (D).

13, the front-wheel drive of motor bike according to claim 1 is characterized in that: its f-w-d device is axle drive shaft (S).

14, according to the front-wheel drive of claim 1 or 13 described motor bikes, it is characterized in that: axle drive shaft (S) is positioned at plane, two front fork tube places, and is parallel to front fork tube.

15, according to the front-wheel drive of claim 1,13 or 14 described motor bikes, it is characterized in that: axle drive shaft (S) is positioned at the outside of front fork tube.

16, according to the front-wheel drive of claim 1,13 or 14 described motor bikes, it is characterized in that: axle drive shaft (S) is positioned at the inboard of front fork tube.

17, according to the front-wheel drive of claim 1,13 or 14 described motor bikes, it is characterized in that: axle drive shaft (S) is positioned in the front fork tube.

18, according to the front-wheel drive of claims 1,13 or 14 described motor bikes, it is characterized in that: there is an auxiliary front fork tube (3) axle drive shaft (S) lower end.

19, the front-wheel drive of motor bike according to claim 1 is characterized in that: the f-w-d device is a sleeve.

20, the front-wheel drive of motor bike according to claim 1 is characterized in that: described f-w-d device is a chain.

Images