KR101219700B1

KR101219700B1 - Rear-wheel capable of driving and steering independently

Info

Publication number: KR101219700B1
Application number: KR1020100105584A
Authority: KR
Inventors: 최성현; 이현우; 유창열
Original assignee: 현대자동차주식회사
Priority date: 2010-10-27
Filing date: 2010-10-27
Publication date: 2013-01-08
Also published as: KR20120044162A

Abstract

A base frame 100; A steering motor 200 installed at an upper end of the base frame 100 and installed such that a motor shaft penetrates the base frame 100; A wheel housing 300 installed at a lower end of the base frame 100 and through which a motor shaft passes; The wheel bracket 300 is installed on the inner upper end of the wheel housing 300 and extends downward, is connected to the motor shaft, rotates together, and the tire 500 is coupled to the inner side via the drive shaft 520 penetrating the side surface. 540; And a rear wheel that can be independently driven and steered, including; and a drive motor 400 installed at the side end of the wheel bracket 540 to transfer a driving force to the drive shaft 520.

Description

Rear wheels with independent drive and steering {REAR-WHEEL CAPABLE OF DRIVING AND STEERING INDEPENDENTLY}

The present invention relates to a rear wheel of a vehicle, and relates to a rear wheel that can be steered and driven independently of the front wheel.

In the conventional general vehicle, the rear wheels are fixed to the driving shaft and serve only driving and braking forward and rearward.

Therefore, it was disadvantageous for parking or obstacle avoidance in narrow alleys, and there was a problem that horizontal parking itself was impossible at all in a narrow space.

Apart from this problem, some vehicles have been introduced with the function that the rear wheels rotate at a certain angle according to the steering degree of the front wheels for the vehicle's driving stability. It wasn't just rotating in order to steer and drive completely independently.

Accordingly, in the case of obstacle avoidance, parking and horizontal parking in a narrow space, a technique is required in which the rear wheel is steered and driven by 180 degrees or more independently of the front wheel.

The matters described as the background art are only for the purpose of enhancing the understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the related arts known to those skilled in the art.

The present invention has been proposed to solve this problem, and an object thereof is to provide a rear wheel capable of independent driving and steering capable of independently steering and driving a rear wheel of a vehicle.

Independent drive and steering is possible rear wheel according to the present invention for achieving the above object, the base frame; A steering motor installed at an upper end of the base frame and installed such that a motor shaft penetrates the base frame; A wheel housing installed at a lower end of the base frame and through which a motor shaft passes; A wheel bracket installed at an inner upper end of the wheel housing and extending downward, connected to a motor shaft, rotated together, and having a tire coupled to the inside through a drive shaft penetrating the side; And a driving motor installed at a side end of the wheel bracket to transmit a driving force to the drive shaft.

The base frame extends to the left and right, the steering motor, the wheel housing, the wheel bracket and the driving motor are provided on the left and right sides of the base frame, respectively, to form a pair, and an auxiliary frame is provided below the base frame. Both ends of the frame may be fixed to the left and right wheel housings.

The motor shaft of the steering motor is connected to the top of the wheel bracket through the adapter ring, the bearing can be placed between the top of the wheel bracket and the wheel housing.

The wheel housing may be formed in a shade shape for accommodating a wheel bracket and a driving motor therein, and a plurality of vent holes may be formed in all directions along a circumference thereof to release heat therein.

The wheel bracket may be formed such that an upper end thereof is connected to the motor shaft and extends downwardly from the left and right sides of the wheel housing, and a tire is disposed therebetween, and the driving shaft may be connected to the tire through the wheel bracket.

According to the rear wheel that can be independently driven and steered, the rear wheel can be independently steered for 360 degrees and can be driven so that parking or obstacles can be avoided in a narrow space, and horizontal parking is very easy. There is a repelling effect.

In addition, there is an advantage that the parking can be performed by steering of the rear wheel even if a separate parking brake is not installed.

1 is a perspective view of a rear wheel capable of independent driving and steering according to an embodiment of the present invention.
2 is a front perspective view of the rear wheel capable of independent driving and steering shown in FIG.
Figure 3 is a perspective view showing a horizontal parking mode of the rear wheel capable of independent driving and steering shown in FIG.
4 is a perspective view showing a parking mode of the rear wheel capable of independent driving and steering shown in FIG.

Hereinafter, with reference to the accompanying drawings looks at the rear wheel capable of independent driving and steering according to an embodiment of the present invention.

1 is a perspective view of a rear wheel capable of independent driving and steering according to an embodiment of the present invention, Figure 2 is a front perspective view of the rear wheel capable of independent driving and steering shown in FIG.

Rear wheels capable of independent driving and steering according to a preferred embodiment of the present invention, the base frame 100; A steering motor 200 installed at an upper end of the base frame 100 and installed such that a motor shaft penetrates the base frame 100; A wheel housing 300 installed at a lower end of the base frame 100 and through which a motor shaft passes; The wheel bracket 300 is installed on the inner upper end of the wheel housing 300 and extends downward, is connected to the motor shaft, rotates together, and the tire 500 is coupled to the inner side via the drive shaft 520 penetrating the side surface. 540; And a driving motor 400 installed at a side end of the wheel bracket 540 to transmit a driving force to the driving shaft 520.

Thus, the rear wheel is capable of steering the tire 500 in the forward direction of 360 degrees inside the wheel housing 300 by the operation of the steering motor 200, independent of the front wheel by the drive motor 400 It becomes possible to drive.

In addition, the base frame 100 extends left and right, and the steering motor 200, the wheel housing 300, the wheel bracket 540, and the driving motor 400 are left and right of the base frame 100. Each pair is provided on the right side, and the auxiliary frame 140 is provided below the base frame 100, and both ends of the auxiliary frame 140 are fixed to the left and right wheel housings 300.

Here, the auxiliary frame 140 is connected to the base frame 100 to form an integral ladder-type fixed frame, two steering motors 200 are fixed to the top of the auxiliary frame 140, respectively, the base frame 100 Below, a pair of wheel housings 300, wheel brackets 540, tires 500 and a driving motor 400 are provided, but both ends of the auxiliary frame 140 are fixed to the wheel housings 300, respectively. Form a structure.

In addition, the motor shaft of the steering motor 200 is connected to the top of the wheel bracket 540 through the adapter ring 220, the bearing 240 between the top of the wheel bracket 540 and the wheel housing 300 It is characterized by published. The steering motor 200 is mounted to the base frame through the fixture 120, and the motor shaft is connected to the wheel bracket 540 through the base ring 100 and the wheel housing 300 through the adapter ring 220. In addition, a bearing 240 is disposed between the top of the wheel bracket 540 and the wheel housing 300 so that the wheel bracket 540 can be smoothly rotated inside the wheel housing 300 along the motor shaft.

On the other hand, the wheel housing 300 is formed in a shade shape that can accommodate the wheel bracket 540 and the drive motor 400 therein and a plurality of vent holes 320 in all directions along the circumference to form a heat dissipation It is characterized by. As shown in the figure, the wheel housing 300 is formed in a shape of an octagonal horn to accommodate the wheel bracket 540, the tire 500, and the driving motor 400 therein. In addition, a plurality of vent holes 320 are formed for each surface along the circumference thereof for heat dissipation inside the wheel housing 300.

The wheel bracket 540 is formed such that an upper end of the wheel bracket 300 is connected to the motor shaft and extends downwardly from the left and right sides thereof, and the tire 500 is disposed therebetween, and the driving shaft 520 is formed of the wheel. It passes through the bracket 540 to be connected to the tire.

As described above, the wheel bracket 540 is connected to the upper end of the motor shaft vertically. The wheel bracket 540 extends downward from both ends of the upper end, and the tire 500 is coupled between the extended shapes. In addition, the drive motor 400 is installed on the side of the wheel bracket 540, the drive shaft 520 of the drive motor 400 is connected to the inner tire 500 through the wheel bracket 540, the tire 500 ) Will transmit the driving force. To this end, the bearing 560 is coupled between the wheel bracket 540 and the drive shaft 520 to smoothly rotate the drive shaft 520.

FIG. 3 is a perspective view illustrating a horizontal parking mode of the rear wheel capable of independent driving and steering illustrated in FIG. 1, and FIG. 4 is a perspective view illustrating a parking mode of the rear wheel capable of independent driving and steering illustrated in FIG. 1.

By the independent rear wheel as described above, the tire 500 of the rear wheel may be steered in the horizontal direction by 180 degrees by the steering motor 200 as shown in FIG. 3. When the driver sets the horizontal parking mode, the tire 500 is steered horizontally as shown, so that the vehicle can move sideways. This facilitates parking in narrow spaces, avoiding congestion or horizontal parking in narrow spaces.

In addition, when the occupant selects the parking mode, as shown in FIG. 4, the tires 500 are collected together so that the tires 500 do not slip and the parking state of the vehicle is maintained. To this end, the steering motor 200 on both sides is enabled by rotating the tire 500 in the opposite direction at the same angle to each other, even if a separate parking brake is not installed in the vehicle, the parking effect is sufficiently obtained.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

100: base frame 200: steering motor
300: wheel housing 400: drive motor
500: tires

Claims

A base frame 100;
A steering motor 200 installed at an upper end of the base frame 100 and installed such that a motor shaft penetrates the base frame 100;
A wheel housing 300 installed at a lower end of the base frame 100 and through which a motor shaft passes;
The wheel bracket 300 is installed on the inner upper end of the wheel housing 300 and extends downward, is connected to the motor shaft, rotates together, and the tire 500 is coupled to the inner side via the drive shaft 520 penetrating the side surface. 540; And
And a driving motor 400 installed at the side end of the wheel bracket 540 to transmit driving force to the driving shaft 520.
The base frame 100 extends left and right, and the steering motor 200, the wheel housing 300, the wheel bracket 540, and the driving motor 400 are located at the left and right sides of the base frame 100. Independent driving and steering, characterized in that each pair is provided, the auxiliary frame 140 is provided below the base frame 100 and both ends of the auxiliary frame 140 are fixed to the left and right wheel housing 300. 2 available rear wheels.

delete

The method according to claim 1,
The motor shaft of the steering motor 200 is connected to the top of the wheel bracket 540 through the adapter ring 220, the bearing 240 is placed between the top of the wheel bracket 540 and the wheel housing 300 Rear wheel capable of independent driving and steering, characterized in that.

The method according to claim 1,
The wheel housing 300 is formed in a shade shape that can accommodate the wheel bracket 540 and the drive motor 400 therein, and a plurality of vent holes 320 are formed in the front direction along the circumference to radiate heat. Rear wheel capable of independent driving and steering.

The method according to claim 1,
The wheel bracket 540 is formed such that an upper end of the wheel bracket 300 is connected to the motor shaft and extends downwardly from the left and right sides thereof, and the tire 500 is disposed therebetween, and the driving shaft 520 is formed of the wheel. A rear wheel capable of independent driving and steering, characterized in that connected to the tire through the bracket (540).