CN217415398U

CN217415398U - Wheel-type axle module of full-independent electrically-driven single shaft

Info

Publication number: CN217415398U
Application number: CN202123411444.9U
Authority: CN
Inventors: 吴志成; 刘晓静
Original assignee: Suzhou Kanruiao Technology Co ltd
Current assignee: Suzhou Kanruiao Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-09-13
Anticipated expiration: 2031-12-31

Abstract

The utility model provides a wheeled axle module of full independent electric drive unipolar, including independent suspension, independent steering, independent drive and unipolar frame assembly, independent suspension, independent steering, independent drive install on a unipolar frame assembly, unipolar frame assembly has the interface in front, rear direction design to be used for establishing ties into the wheeled chassis of multiaxis with a plurality of unipolar frame assemblies. The utility model adopts independent driving and independent steering at the same time, can realize the reverse rotation of the left and the right wheels and the reverse deflection of the left and the right wheels at the same time, and because the reverse deflection of the left and the right wheels can form the centripetal deflection for the vehicle body, the steering resistance of the vehicle during the centripetal steering is greatly reduced; the device has good dynamic property, smoothness and steering maneuverability.

Description

Wheel-type axle module of full-independent electrically-driven single shaft

Technical Field

The utility model relates to a wheeled vehicle chassis, in particular to wheeled vehicle's full independent steering drive axle.

Background

The concept of "independent" in wheeled vehicles is generally used only for suspensions, i.e. independent suspensions. While steering and driving are not "independent", i.e.: the power of the left wheel and the right wheel comes from two half shafts of a differential, and the torque distribution is equal; the steering movement of the left wheel and the right wheel is connected through a steering tie rod to perform deflection movement together, and the deflection angle is determined by a steering trapezoid.

In order to improve the steering maneuvering performance of the wheeled vehicle, a fully independent steering driving axle can be adopted, namely: the deflection of the left wheel and the deflection of the right wheel are respectively driven by two servo electric cylinders as steering gears, so that the reverse deflection of the left wheel and the right wheel can be realized; the rotation of the left wheel and the right wheel is respectively driven by two motors and a speed reducer, so that the left wheel and the right wheel can rotate reversely. When the left wheel and the right wheel reversely deflect and reversely rotate, the fully independent steering driving axle can realize the so-called central steering taking the geometric center of the vehicle as the steering center, and the steering resistance is much smaller than that of the wheel type chassis which only independently drives and does not independently steer.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a full independent electric drive unipolar wheel-type axle module with functions such as independent suspension, independent steering, independent drive.

The utility model aims at realizing through the following technical scheme:

the utility model provides a wheeled axle module of full independent electric drive unipolar, includes independent suspension, independent steering, independent drive and unipolar frame assembly, independent suspension, independent steering, independent drive are installed on a unipolar frame assembly, unipolar frame assembly has the interface in front, rear direction design to be used for establishing ties into the wheeled chassis of multiaxis with a plurality of unipolar frame assemblies.

The left independent suspension and the right independent suspension both adopt double-cross-arm type guide mechanisms with different lengths, and each guide mechanism comprises an upper cross arm, a lower cross arm, a steering knuckle, a wheel assembly and a spring shock absorber assembly.

And the left and right independent steering respectively adopts a 48V servo electric cylinder as a steering gear to respectively drive the left and right wheels to deflect.

The left and right independent drives respectively adopt a 48V permanent magnet synchronous motor and a speed reducer to respectively drive the left and right wheels to rotate, and 4 12V storage batteries are connected in series to supply power as a 48V power supply.

The utility model has the advantages that: compared with the prior art, the utility model, have following characteristics:

(1) the left wheel and the right wheel can rotate reversely and deflect reversely, so that the centripetal deflection can be formed on the vehicle body due to the reverse deflection of the left wheel and the right wheel, and the steering resistance of the vehicle during the central steering is greatly reduced; has good dynamic property, smoothness and steering maneuverability.

(2) The single-axle frame assembly accords with the modularized design concept, can be used as a basic unit for constructing a modularized multi-axle wheel type vehicle chassis, is provided with interfaces in the front and rear directions of the single-axle frame assembly, and can conveniently adopt a plurality of single-axle frame assemblies to be connected in series to form a multi-axle wheel type chassis with 4 wheels, 6 wheels, 8 wheels, 10 wheels, … … wheels, and the like.

Drawings

FIG. 1-schematic diagram of an embodiment of the present invention;

FIG. 2 is a three-dimensional model diagram of an independent suspension system;

FIG. 3-three-dimensional model diagram of independent drive system;

FIG. 4 is a diagram of a real object for loading the servo electric cylinder with independent steering;

FIG. 5-a three-dimensional model of a single axle frame assembly;

FIG. 6 is a three-dimensional model diagram of a multi-axle chassis formed by splicing 4 single-axle frame assemblies in series.

Wherein:

1. the suspension upper cross arm 2, the spring shock absorber group assembly 3, the permanent magnet synchronous motor 4.12V storage battery 5, the wheel half shaft 6, the steering knuckle and wheel assembly 7, the gear reduction device 8, the single-shaft frame assembly 9, the steering servo electric cylinder 10 and the suspension lower cross arm.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in fig. 1, the utility model relates to a wheeled axle module of full independent electric drive unipolar includes independent suspension, independent steering, independent drive and unipolar frame assembly 8, and left and right independent suspension all adopts unequal length two cross arm formula guiding mechanism, include: the device comprises an upper cross arm 1, a lower cross arm 10, a steering knuckle 6, a wheel assembly 11 and a spring damper group assembly 2.

The left and right independent steering respectively adopts a 48V servo electric cylinder 9 as a steering gear to respectively drive the left and right wheels to deflect.

The left and right independent drives respectively adopt a 48V permanent magnet synchronous motor 3 and a speed reducer 7 to respectively drive the left and right wheels to rotate, and 4 12V storage batteries 4 are connected in series to supply power as a 48V power supply.

Independent suspension, independent steering, independent drive triplex structure are installed on a unipolar frame assembly 8, and unipolar frame assembly has the interface in the front, rear direction design, adopts a plurality of unipolar frame assemblies to establish ties into multiaxis wheeled chassis.

As shown in fig. 2, the left and right independent suspensions adopt three-dimensional models of double-wishbone type steering mechanisms of unequal length. In order to ensure the performance and reliability of the suspension guide mechanism, the suspension assemblies of light cross-country vehicle products are adopted, and then a spring damper assembly is matched.

As shown in fig. 3, the independent steering servo electric cylinder is connected with the frame assembly 8 by a joint bearing 91, the independent steering servo electric cylinder is connected with the knuckle 6 by a ball pin 92, and a pull rod type displacement sensor is installed above the servo electric cylinder in parallel in order to obtain the stroke data of the servo electric cylinder.

As shown in fig. 4, the three-dimensional models of the permanent magnet synchronous motor and the reduction gear used are independently driven left and right. In order to ensure the performance and the reliability of the electric drive system, mature electromechanical products in the market are adopted.

As shown in fig. 5, a three-dimensional model of a single axle frame assembly. In this figure, it can be seen that the single-axle frame assembly is provided with a plurality of bolt holes for mounting the interface connecting bolts in the front and rear directions.

As shown in fig. 6, a three-dimensional model of a four-axle 8-wheel chassis is formed by splicing 4 single-axle frame assemblies in series.

Through experimental verification the utility model discloses engineering product work is normal, is applicable to the axle load and is not more than 1 ton's wheeled axle. Adopt the utility model discloses the four-axis 8 wheel chassis that founds can carry out the center under "the centripetal deflection" state and turn to.

In summary, the above is only the embodiment of the present invention, and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a wheeled axle module of full independent electric drive unipolar which characterized in that: including independent suspension, independent steering, independent drive and unipolar frame assembly (8), independent suspension, independent steering, independent drive install on a unipolar frame assembly (8), unipolar frame assembly (8) in the front, rear direction design have the interface to be used for establishing ties into multiaxis wheeled chassis with a plurality of unipolar frame assemblies.

2. The fully independent electrically driven single-axle wheel axle module of claim 1, wherein: the left independent suspension and the right independent suspension both adopt double-cross-arm type guide mechanisms with different lengths, and each double-cross-arm type guide mechanism comprises an upper cross arm (1), a lower cross arm (10), a steering knuckle (6), a wheel assembly (11) and a spring damper assembly (2).

3. The fully independent electrically driven single-axle wheel axle module of claim 1, wherein: and the left and right independent steering respectively adopts a 48V servo electric cylinder (9) as a steering gear to respectively drive the left and right wheels to deflect.

4. The fully independent electrically driven single-axle wheel axle module of claim 1, wherein: the left and right independent drives respectively adopt a 48V permanent magnet synchronous motor (3) and a speed reducer (7) to respectively drive the left and right wheels to rotate, and 4 12V storage batteries (4) are connected in series to supply power as a 48V power supply.