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Super-clutch type multi-bridge driving mechanism

A technology of overrunning clutch and driving mechanism, which is applied in the direction of control devices, transportation and packaging, and vehicle components, and can solve problems such as the complex structure of the anti-skid differential chassis, the complex structure of the automobile chassis, and the increase in the cost of automobile manufacturing, and achieve the goal of increasing the minimum distance. Ground clearance, simple structure, reduced turning radius

Inactive Publication Date: 2009-03-11
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with four-wheel drive and two-wheel drive, although the number of driving wheels is only doubled, the technical difficulties are many times greater.
After the center differential was installed, another shortcoming appeared. Once a certain driving wheel slipped and idling, the driving force of the other wheels would all be lost. Therefore, an anti-skid mechanism must be added to each differential to make The differentials are all changed to limited slip differentials
The addition of a non-slip differential not only makes the chassis structure more complicated, but also greatly increases the manufacturing cost of the car
4WD has already increased a lot of difficulties compared with 2WD in technology. If the vehicle is to further improve the passing capacity and realize the structure of 6WD and 8WD, the structure of the vehicle chassis will become extremely complicated

Method used

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  • Super-clutch type multi-bridge driving mechanism
  • Super-clutch type multi-bridge driving mechanism
  • Super-clutch type multi-bridge driving mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] attached figure 1 As shown, the power from the engine 2 is transmitted to the drive shaft 14 through the driving gear 15, and then the power is transmitted through the first sprocket 13, the chain 12, the overrunning clutches 4, 6, and the universal joint 7 driven backward and forward. To drive the wheels 9, because the drive structure is symmetrical front and back and left and right, four wheel drives can be realized. When the car is running on a curve or due to different tire radii, the running speeds of the four wheels will be different. The overrunning clutches 4 and 6 driven backward and forward allow the wheels that rotate faster to Free overrunning rotation eliminates rolling interference between wheels and avoids unnecessary additional force between wheels.

[0023] The structure of the semi-drive axle and the control method of the transmission direction are as attached figure 2 As shown, the power from the driving first sprocket 13 is transmitted to the seco...

Embodiment 2

[0026] Attached below Figure 4 Shown is further described to invention embodiment 2:

[0027] The difference between embodiment 2 and embodiment 1 is that: a drive axle and chain 12 are added to the 4WD mode to directly become the 6WD mode. The magnitude of the drive torque for the six wheels depends on the actual rotational speed of each wheel. Due to the overrunning action of the overrunning clutches 4 and 6 driven backwards and forwards, the short-time 6WD mode of the illustrated car can also be realized. The six wheels of the car will have different rotational speeds due to the different turning radii when driving on a curve. Even when driving in a straight line, the rotational speeds between the wheels will be slightly different due to the difference in tire radius. Under any conditions, the 6WD mode can automatically adjust the number of driving wheels within the range between one wheel drive and six wheel drive. The method is similar to that of whipping a slow ox. A...

Embodiment 3

[0029] Attached below Figure 5 and Figure 6 Shown further description to embodiment 3 of the present invention:

[0030] The difference between Embodiment 3 and Embodiment 1 is that: adding a drive axle to the 4WD mode directly becomes the 6WD mode. The feature of this embodiment is that the half drive axle is directly added to the shaft end of the drive shaft 14 . Structure and transmission direction control mode between its drive shaft 14 and the first sprocket 13 are as attached Figure 6As shown, a sliding splined connection is used. The left and right covers 35, 34 of the first sprocket wheel 13, connecting disc 32, spline type connecting sleeve 33 and sprocket wheel constitute a part. The splined connection sleeve 33 and the drive shaft 14 adopt a sliding spline connection to transmit power, and are supported on the shaft 14, while the outer drive shaft 29 and two clutches 30, 31 constitute a part, and are supported on the spline On the outer shaft diameter of the...

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Abstract

The invention relates to a multi-bridge driving for walking mechine that adopts overrunning coupler and chain to realize nWD mode of multi-bridge. The structure includes driving shaft, chain sprocket, chain and overrunning coupler. The power of driving shaft is transferred to driving wheel through chain sprocket, chain, chain sprocket and overrunning coupler. The invention could also realize 4WD, 6WD and 8WD. It realizes short time nWD method and simplifies the chassis structure of nWD method vehicle.

Description

technical field [0001] The invention relates to a multi-axle drive of a walking machine, and is especially suitable for the nWD (n-wheel drive) mode of a vehicle. The mechanism adopts an overrunning clutch and a chain drive to realize the multi-axle nWD mode. Background technique [0002] In order to improve the off-road capability of the car, the car adopts a four-wheel drive (4WD), or increases the ground clearance between the chassis and the ground. Compared with two-wheel drive, four-wheel drive has only doubled the number of driving wheels, but the technical difficulties will be increased many times. For four-wheel drive, it is necessary to solve the braking phenomenon of sharp turns and the mutual interference between the front and rear wheels. To solve the above problem, a differential must be installed between the two driving wheels of each axle, and an intermediate differential must be installed between the axles. After the center differential was installed, anoth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K17/36
Inventor 方显忠
Owner JILIN UNIV
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