All-wheel drive vehicle power train

FIELD: transport.

SUBSTANCE: all-wheel drive vehicle power train incorporates the main and auxiliary transfer boxes with the auxiliary transfer box output shafts being linked, via drive lines, with the third and rear driving axle differential gears and the said box input shaft being connected with the main transfer box output shaft of the front driving axle differential gear drive. The main transfer box is arranged between the front and the third driving axles attached to the side member in the area of the medium traverse, while the auxiliary transfer box is located between the third and rear driving axles attached, at an angle to the side member, to the auxiliary transverse lower surface jointed to the side members, the said lower surface axis passing at an angle to the side members other than a right angle. All axles feature identical design and overall sizes. The rear driving axle differential gear is shifted towards one side member relative to differential gears of the other axles shifted towards the other side member. Note that all power train assembly units are arranged below the rectangular frame top surface.

EFFECT: higher performances.

1 dwg

 

The invention relates to the transport industry, in particular for off-road wheeled vehicles, multi-purpose, designed to travel in off-road conditions, poor soils for transportation of people and equipment. This wheeled vehicle is the base to create machines of various functional applications.

Known transmission off-road wheeled vehicles containing serially connected between a drive motor, coupling, gearbox and transfer box, made with the output shafts, drive gears associated with locking differentials front and rear axles, each of which is respectively associated with the side members of the frame, respectively, each axle flanges attached to the vertical walls of the side members with the inner side of the frame, and wheel drive shafts from the differential skipped through openings in the vertical walls of the side members and through the end of transmission associated with wheels (RU # 2163209, B62D 63/02, UK 17/28, B62D 7/14, publ. 2001.02.20).

Lack of transmission of this versatile traction of the vehicle is the fact that all power units are located on the longitudinal axial line of the frame, axles made with a Central location differentials that PR is leads to the necessity, on the one hand, the location of all power drive shaft closer to the longitudinal axial line and the output shafts of the steering actuator for a frame, that is, with its outer side. The density of the power units complicates maintenance. In this kinematic and lay out the build of this vehicle cannot be transformed in triaxial option to transfer it from the vehicle universal functional destination intended for performance of technological operations in forestry, agriculture and household, as well as when carrying out construction works, in the vehicle-terrain vehicles, used for transporting people and cargo.

In addition, the frame is made according to the classical scheme of the two side members and two cross-beams of steel determining the bending stiffness of this design. This frame becomes cumbersome and bulky. Increased stiffness for such a frame is necessary because the Carter bridges flanges are attached to the spars. Naturally, when replacing steel, for example, aluminum appears necessary to increase the rigidity of the frame.

The present invention is directed to solving the following technical tasks: attaching all units under the crossbars in the volume of the frame, is the use of elements attached to power units as cross-beams of the frame, determine its Flexural rigidity, optimization of the angles of the shafts cardan transmission. While the present invention is also directed to a solution to simplify the design as a whole through the use of standard components of mechanical power flow and improve the layout at the expense of rational allocation of all power units and propeller shafts freely available to them.

Achievable technical result is to improve operational performance through the use of standard equipment, capacity building building a series of machines for various purposes due to the location of all kinematic nodes below the top surface of the side members of the frame, reducing the weight of the frame through the use of cross-beams as supports for the kinematic nodes and durability of the actuator due to the rational arrangement of drive shafts in the optimal range of the calculated angular displacements.

This technical result is achieved in that the transmission-wheel drive vehicles with basic transfer case output shafts which drive gears associated with differentials front and rear axles, each of which has a sump, with wheel shafts from the differential skipped through overstep vertical walls of the side members and through the end of transmission associated with wheels, made with a third axle located between the front and rear driving axles, and additional gearbox output shafts which are connected with the cardan transmissions with differentials of the third and rear axles for the drive wheel and the input shaft with the output shaft of the main transfer case actuator differential front drive axle, respectively, each driving axle is attached to the lower surface of the individual cross rectangular frame, the main transfer case is located between the front and the third driving axles and attached to the spars in the area of the middle cross member below the upper surface of side members, and an additional transfer case is placed between the third and rear driving axles and attached at an angle to the side members to the bottom surface of the additional cross member connected to the side members and a longitudinal axis which is at an angle to the side members, other than direct, with all the bridges are made with the same design and dimensions, differentials front and third bridges are shifted to one side member and the rear axle differential is shifted to another spar.

These characteristics are essential and interrelated with the formation of a stable set of essential features, sufficient to achieve the required the imago technical result.

The present invention is illustrated by specific examples, which, however, is not only possible, but clearly demonstrates the possibility of achieving a given set of features required technical result.

In the drawing - transmission four-wheel vehicles.

According to the present invention, the transmission off-road wheeled vehicles formulas 6×6 contains a rectangular frame with side members 1 connected by the three main cross-beams 2, the upper surface of which is planar and located in the plane of the upper surface of the rails. Thus, the plane of the upper platform frame for mounting attachments on it equipment, such as a body of any type, to create a series of machines for various purposes. The frame is a basic element to create a transmission module.

Mounted on the frame driven by the main engine gear box 3, additional transfer case 4 and three leading axle 5 of the same design and dimensions, designed to drive the wheels. In this third axle is located between the front and rear driving axles. Differentials 6 front and third bridges are shifted to one side member, and the differential 7 rear axle shifted to the other is th spar. Wheel shafts from the differential skipped through openings in the vertical walls of the side members and through the end of the transmission 8 is connected with wheels. Each of the three main cross-beams 2 to the lower surface attached respectively corresponding driving axle. Thus, all axles are secured under the cross.

The main gear box 3 is located between the front and the third (middle) driving axles and attached to the side members 1 in the area of the middle cross member and does not extend past the plane of the upper surface of the frame.

The output shafts of the additional transfer box 4 are connected cardan transmissions with differentials of the third (middle), and rear axles for the drive wheel and the input shaft with the output shaft of the main transfer gear engaged gear of the differential front drive axle. Additional transfer case 4 is placed between the third and rear driving axles and attached at an angle to the side members to the bottom surface of the additional cross member 9, which is connected with the side members and a longitudinal axis which is at an angle to the side members, other than a right angle. The axis of the input and output shafts an additional transfer case 4 are at an angle to the axes of the input and output shafts of the primary transfer box.

Thus, all aggregatecatalog drive wheels placed in the cavity of the frame. With such design, the frame is possible sealing frame bottom cover 10, the insulating cavity of the frame from the side of the road.

The present invention allows to provide high maintenance and rational arrangement, attaching all units under the crossbars in the volume of the frame allows you to use the top plane of the frame as the site for the installation of any equipment or body of any type, using elements attached to power units as a cross frame allows you to save the Flexural strength of the frame at a high level, which is especially important for long wheelbase vehicles, and you can release the volume between the spars in front or after the rear crossbars for installation of additional process equipment, due to the inclined relative to the side members of the location of additional transfer case is achieved by optimizing the angles of the shafts drive shafts providing the calculated displacement and the estimated power load on the joints and shafts of these gears. In General just solved the problem by simplifying the design through the use of standard components of mechanical power flow and improve the layout at the expense of rational allocation of all power units and propeller shafts freely available to them.

Transmission RA who work as follows.

Torque transferred to the input of the main transfer gear of the transmission where it is transmitted in two streams: the first goes to the main transmission front drive axle to drive its differential, the second goes to the input of the transfer case, which comes on the main transmission medium drive axle to drive his differential and the main transmission rear drive axle to drive its differential.

The present invention is industrially applicable as it is based on the use of ready-manufactured automotive components and assemblies, and the novelty consists in the new layout and rational placement of these units relative to each other and the frame, thereby creating a transmission module to create a series of all-terrain vehicles for various purposes.

Transmission four-wheel vehicles with basic transfer case output shafts which drive gears associated with differentials front and rear axles, each of which has a sump, with wheel shafts from the differential skipped through openings in the vertical walls of the side members and through the end of the transmission associated with the wheels, characterized in that it is made with a third axle located between lane is ne and rear driving axles, and additional gearbox output shafts which are connected with the cardan transmissions with differentials of the third and rear axles for the drive wheel and the input shaft with the output shaft of the main transfer case actuator differential front drive axle, respectively, each driving axle is attached to the lower surface of the individual cross rectangular frame, the main transfer case is located between the front and the third driving axles and attached to the spars in the area of the middle cross member below the upper surface of side members, and an additional transfer case is placed between the third and rear driving axles and attached to the bottom surface of the additional cross member connected to the side members and the longitudinal axis which is located at an angle to the side members, other than direct, with the axis of the input and output shafts additional transfer box are located at an angle to the axes of the input and output shafts of the primary transfer case, all the bridges are made with the same design and dimensions, differentials front and third bridges are shifted to one side member and the rear axle differential is shifted to another spar.



 

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