RU2534161C1 - All wheel drive motorcycle - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to all wheel drive motorcycle. All wheel drive motorcycle includes frame with telescopic front wheel yoke, fuel tank, internal combustion engine and front and rear wheel drive installed on the frame. The drive is made in the form of clutch for coupling with output shaft connected to infinitely variable transmission on the output shaft of which universal joint is installed which is connected with driving shaft of rear wheel via spline joint with bevel gear and pinion of rear wheel drive. On the same output shaft, driving sprocket of front wheel drive chain is rigidly fixed. The driven sprocket is fixed on front drive driving shaft mounted in two bearings fixed to frame and located under fuel tank. On the other end of driving shaft, driving bevel gear is rigidly fixed which rotates large intermediate bevel gear positioned at an angle of 90° to driving shaft axis. Large gear axis coincides with yoke mounting assembly axis and is fitted in bushing of yoke rotation on its independent bearings, where driven bevel gear taking torque from intermediate bevel gear is fitted on butt end of divided driving shaft having spline joint and installed in bearings the bodies of which are mounted on inner side of yoke. On the lower end of driving shaft, the second small bevel gear is fitted which transfer rotation at an angle of 90° to large bevel gear which is fixed to side surface of front wheel hub which wheel is installed on axle.

EFFECT: improvement of motorcycle performance characteristics.

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Description

The invention relates to the field of cycle engineering, in particular for all-wheel drive single-track vehicles, mainly motorcycles.

In existing designs of all-terrain motorcycles, the front wheel drive is either a cardan-chain drive (ROKON, USA) or a hydraulic drive (Yamaha, Japan), which is expensive and complicated in production.

The present invention is aimed at solving the following problems: simplifying production and improving reliability in operation.

The technical result achieved in this case is to increase the motorcycle's operational properties, maintainability, maneuverability and manufacturability while maintaining all the positive properties of traditional motorcycles in terms of compactness, ease of use and free access to units during maintenance.

The problem is solved and the technical result is achieved by the fact that the all-wheel drive motorcycle contains a frame with a telescopic front wheel fork, a gas tank mounted on the frame, an internal combustion engine and a front and rear wheel drive, while the new one is that the front and rear wheel drive is made in the form clutch with an output shaft connected to the variator, on the output shaft of which a cardan joint is mounted, connected to the rear wheel drive shaft through a spline connection with a conical pair drive of the rear wheel, and the drive sprocket of the front wheel drive chain is rigidly fixed, while the driven chain sprocket is fixed to the front drive drive shaft installed in two bearings mounted on the frame and under the gas tank, while the drive cone is rigidly fixed to the other end of the drive shaft a gear rotating a large intermediate bevel gear located at an angle of 90 ° to the axis of the drive shaft, while the axis of the large gear coincides with the axis of the fork mount and is fixed in the rotation sleeve forks on their independent bearings, and the driven bevel gear, which receives torque from the intermediate bevel gear, is mounted on the end face of the split drive shaft having a spline connection and installed in bearings, whose housings are mounted on the inside of the fork, the second small one is mounted on the lower end of the drive shaft bevel gear, which transfers rotation at an angle of 90 ° to the large bevel gear, which is mounted on the side surface of the hub of the front wheel mounted on the axle .

The drawing shows a kinematic diagram of an all-wheel drive motorcycle.

All-wheel drive motorcycle contains a frame with a telescopic front wheel fork, a gas tank mounted on the frame, an internal combustion engine 1 and a front and rear wheel drive made in the form of a clutch 2 with an output shaft 3 connected to the variator 4, on the output shaft 5 of which a cardan joint is mounted 6, connected to the drive shaft 7 of the rear wheel 8 through a spline connection 9 with a conical pair 10 of the rear wheel drive 8. The drive sprocket 11 of the front wheel drive chain 12 is rigidly fixed to the output shaft 5. The driven sprocket 13 of chain 12 is mounted on the front drive shaft 14 mounted in two bearings 15 mounted on the frame and located under the gas tank, while on the other end of the drive shaft 14 the bevel gear 16 is fixed, rotating the large intermediate bevel gear 17 located at an angle of 90 ° to the axis of the drive shaft 14, while the axis 18 of the large gear 17 coincides with the axis of the fork mount and is mounted in the sleeve of rotation of the fork on its independent bearings 19, with the driven bevel gear 20 receiving torque from an intermediate bevel gear 17, is mounted on the end face of a split drive shaft 21 having a spline connection 22 and mounted in bearings 23, whose housings are mounted on the inner side of the fork, a second small bevel gear 24 is mounted on the lower end of the drive shaft 21, which transmits rotation at an angle of 90 ° to the large bevel gear 25, which is mounted on the side surface of the hub of the front wheel mounted on the axis 26.

In the proposed drive scheme, the torque from the output shaft of the variator without interrupting the power flow, which is very important for high rolling resistance of the wheels on the roads in the absence of coasting, is transmitted simultaneously to the front wheel drive shaft and rear wheel drive shaft, respectively, through a chain drive and bevel gear.

The use of chain transmission to transmit torque from the variator to the shaft of the steering column

To compensate for the stroke of the telescopic fork of the wheel during depreciation, the drive shaft is cut and has a spline connection. To prevent dirt from entering the conical drive, it is closed with a plastic casing, and the spline connection with a rubber corrugated casing.

Claims (1)

Four-wheel drive motorcycle containing a frame with a telescopic front wheel fork, a gas tank mounted on the frame, an internal combustion engine and a front and rear wheel drive, characterized in that the front and rear wheel drive is made in the form of a clutch with an output shaft connected to the variator at the output to the shaft of which a cardan joint is mounted, connected by a rear-wheel drive shaft through a spline connection to a conical pair of a rear-wheel drive, and a drive sprocket of the front drive chain is rigidly fixed of the wheel, while the driven sprocket of the chain is mounted on the front drive shaft, mounted in two bearings mounted on the frame and located under the gas tank, while on the other end of the drive shaft the bevel gear rotates a large intermediate bevel gear located at an angle 90 ° to the axis of the drive shaft, while the axis of the large gear coincides with the axis of the fork attachment unit and is mounted in the fork rotation sleeve on its independent bearings, the driven bevel gear being used imposing torque from an intermediate bevel gear, mounted on the end face of a split drive shaft having a spline connection and mounted in bearings whose housings are mounted on the inside of the fork, a second small bevel gear is mounted on the lower end of the drive shaft, which transmits rotation at an angle of 90 ° to a large bevel gear, which is mounted on the side surface of the hub of the front wheel mounted on the axle.