Modularized driving, steering and suspension integrated axle

Abstract

According to the modularized driving, steering and suspension integrated axle, the frame body module, the fork arm suspension module, the driving module and the adjusting module are adopted, a full-drive-by-wire modularized module is used, and the height of the modularized driving, steering and suspension integrated axle is adaptive to automatic driving. The positions of various modules can be changed according to different use scenes, so that the adaptability is improved. And secondly, as one end of the adjusting module is telescopically connected with the fork arm suspension module, and the other end of the adjusting module is telescopically connected with the fixing piece, the distance between the frame body module and the wheels can be adjusted by controlling the adjusting module, so that the modular driving steering suspension integrated axle can be adapted to chassis widths of different vehicles, and the universality of the modular driving steering suspension integrated axle is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobiles, in particular to a modular drive steering suspension integrated axle. BACKGROUND

[0002] The rapid development of unmanned vehicle industry promotes the gradual increase of demand for high-performance modular all-terrain chassis. In the design of existing unmanned vehicle chassis technology, specific scenarios are usually optimized. Taking the four-wheel drive scheme as an example, the current mainstream technology includes:

[0003] One is differential drive, which directly drives the left and right wheels of the vehicle through the motor, saving the complex transmission shaft and mechanical differential structure. Although differential drive is easy to modularize, its performance will be greatly reduced.

[0004] The other is front and rear dual-motor differential with universal transmission shaft, which realizes power transmission by installing an electric motor on each front and rear axle and combining a mechanical differential and a universal transmission shaft. However, the differential with universal transmission shaft is difficult to modularize, and it is also difficult to maintain during maintenance.

[0005] Secondly, the chassis of the above two structures cannot be adapted to different needs, for example: based on different chassis widths of different vehicles, the existing drive steering suspension integrated axle cannot be adjusted according to the required width, and a specially customized drive steering suspension integrated axle is needed to match the corresponding chassis width. During maintenance or replacement, the original factory needs to be made, resulting in a very long production cycle and a very complex reassembly process, making the maintenance efficiency very low. The performance of modularity and maintainability is not good, which is not conducive to reducing development costs. CONTENT OF THE UTILITY MODEL

[0006] Therefore, it is necessary to provide a modular drive steering suspension integrated axle to solve the above problems.

[0007] Embodiments of the present application provide a modular drive steering suspension integrated axle, comprising:

[0008] A frame module for mounting on a vehicle frame;

[0009] A fork arm suspension module provided on the frame module;

[0010] A drive module connected to a vehicle wheel;

[0011] A fixing member, one end of the drive module away from the vehicle wheel is fixed on the fixing member;

[0012] An adjustment module, one end of the adjustment module is connected to the fork arm suspension module in an extension and retraction manner, and the other end of the adjustment module is connected to the fixing member in an extension and retraction manner;

[0013] The adjusting module is configured to adjust the distance between the rack module and the wheel.

[0014] In at least one embodiment of the present application, the fork arm suspension module comprises:

[0015] The upper fork arm suspension is arranged at one end of the rack module.

[0016] The lower fork arm suspension is arranged at one end of the rack module.

[0017] The adjusting module comprises:

[0018] The first adjusting assembly is threadedly connected at one end to the upper fork arm suspension and at the other end to the fixing member.

[0019] The second adjusting assembly is threadedly connected at one end to the lower fork arm suspension and at the other end to the fixing member.

[0020] In at least one embodiment of the present application, the upper fork arm suspension is provided with a first threaded hole, and the fixing member is provided with a second threaded hole.

[0021] The first adjusting assembly comprises:

[0022] The first adjusting member is provided at one end with a first threaded portion and at the other end with a first rotating hole, and the first threaded portion is threadedly connected to the first threaded hole.

[0023] The second adjusting member is provided at one end with a second threaded portion and at the other end with a first spherical portion, the first spherical portion is movably accommodated in the first rotating hole, the second adjusting member is rotationally connected to the first adjusting member, and the second threaded portion is threadedly connected to the second threaded hole.

[0024] The length direction of the first adjusting member is arranged along the direction from the rack module to the fixing member.

[0025] In at least one embodiment of the present application, the upper fork arm suspension is provided with a third threaded hole, and the fixing member is provided with a fourth threaded hole.

[0026] The second adjusting assembly comprises:

[0027] The third adjusting member is provided at one end with a third threaded portion and at the other end with a second rotating hole, and the third threaded portion is threadedly connected to the third threaded hole.

[0028] The fourth adjusting member is provided at one end with a fourth threaded portion and at the other end with a second spherical portion, the second spherical portion is movably accommodated in the second rotating hole, the third adjusting member is rotationally connected to the fourth adjusting member, and the fourth threaded portion is threadedly connected to the fourth threaded hole.

[0029] The length direction of the third adjusting member is arranged along the direction from the frame module to the fixing member.

[0030] In at least one embodiment of the present application, the modular drive steering suspension integrated bridge further comprises:

[0031] A steering assembly is arranged between the two fixing members, and two ends of the steering assembly are rotationally connected with the two fixing members respectively to control the steering of the two wheels at the same end.

[0032] In at least one embodiment of the present application, the steering assembly comprises:

[0033] A steering motor;

[0034] A direction machine rotationally connected with the output end of the steering motor;

[0035] A steering arm, one end of which is arranged on the direction machine and the other end of which is rotationally connected with the fixing member to control the steering of the wheel.

[0036] In at least one embodiment of the present application, the frame module comprises:

[0037] A mounting member, one side of which is mounted on a vehicle frame and the other side of which is rotationally connected with the fork arm suspension module;

[0038] A collision prevention member fixedly connected with the mounting member.

[0039] In at least one embodiment of the present application, the modular drive steering suspension integrated bridge further comprises:

[0040] A light group arranged on the collision prevention member;

[0041] A towing ball arranged on the collision prevention member.

[0042] In at least one embodiment of the present application, the fork arm suspension module further comprises:

[0043] A damping shock absorber, one end of which is rotationally connected with the frame module and the other end of which is rotationally connected with the lower fork arm suspension, and a shock absorbing member is arranged between the damping shock absorber and the frame module and between the damping shock absorber and the lower fork arm suspension.

[0044] In at least one embodiment of the present application, the modular drive steering suspension integrated bridge further comprises:

[0045] A braking system arranged on the fixing member and controlling the brake disc brake or disengaging brake of the vehicle.

[0046] The modular drive steering suspension integrated bridge of the embodiment has at least the following beneficial effects:

[0047] The modular drive steering suspension integrated bridge provided in the above adopts a frame module, a fork arm suspension module, a drive module and an adjusting module, uses full-line control modularization modules, and is highly adaptive to automatic driving.

[0048] The positions of various modules can be changed according to different use scenarios to improve adaptability.

[0049] Secondly, since the adjusting module is telescopically connected to the fork arm suspension module at one end and to the fixing piece at the other end, the frame module and the wheel can be adjusted in distance by controlling the adjusting module, thereby adapting to the chassis width of different vehicles and improving the versatility of the modular drive steering suspension integrated bridge. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 FIG. 1 is a structural diagram of a modular drive steering suspension integrated bridge in an embodiment;

[0051] Figure 2 FIG. 2 is an exploded view of the modular drive steering suspension integrated bridge in FIG. 1; Figure 1

[0052] Figure 3 FIG. 3 is an exploded view of a first adjusting assembly in FIG. 1; Figure 2

[0053] Figure 4 FIG. 4 is a structural diagram of a second adjusting assembly in FIG. 1. Figure 2

[0054] MAIN ELEMENT SYMBOL EXPLANATION

[0055] 100, modular drive steering suspension integrated bridge;

[0056] 110, frame module; 111, mounting piece; 112, anti-collision piece;

[0057] 120, fork arm suspension module; 121, upper fork arm suspension; 122, lower fork arm suspension; 123, damping shock absorber; 124, shock absorbing piece;

[0058] 130, drive module;

[0059] 140, fixing piece;

[0060] 150, adjusting module; 151, first adjusting assembly; 152, second adjusting assembly; 153, first adjusting piece; 1531, first threaded portion; 1532, first rotating hole; 154, second adjusting piece; 1541, second threaded portion; 1542, first ball portion; 155, third adjusting piece; 156, fourth adjusting piece;

[0061] 160, steering assembly; 161, steering motor; 162, steering gear; 163, steering arm;​​​

[0062] 170, lamp group; 171, tow ball;

[0063] 180, braking system. DETAILED DESCRIPTION

[0064] The embodiments of the present application will be described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of, but not all of the embodiments of the present application.

[0065] It should be noted that when one component is considered to be "connected" to another component, it can be directly connected to the other component or can exist simultaneously with a middle component. When one component is considered to be "provided on" another component, it can be directly provided on the other component or can exist simultaneously with a middle component. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and the like used herein are for illustrative purposes only.

[0066] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0067] The embodiments of the present application provide a modular drive and steering suspension integrated bridge 100, comprising:

[0068] The frame module 110 is used to be mounted on the vehicle frame.

[0069] The fork arm suspension module 120 is provided on the frame module 110.

[0070] The drive module 130 is connected in transmission with the vehicle wheel.

[0071] The fixing member 140 is fixed on the end of the drive module 130 away from the vehicle wheel.

[0072] The adjusting module 150 is connected in extension and retraction with the fork arm suspension module 120 at one end and connected in extension and retraction with the fixing member 140 at the other end.

[0073] The adjusting module 150 can adjust the distance between the frame module 110 and the vehicle wheel.

[0074] Please refer to Figure 1 In the present embodiment, the frame module 110, the fork arm suspension module 120, the drive module 130, and the adjusting module 150 are used, and full-line control modular modules are used, which are highly adaptable to automatic driving.

[0075] The positions of various modules can be changed according to different use scenarios to improve adaptability.

[0076] Secondly, since the adjusting module 150 is connected with the fork suspension module 120 at one end and connected with the fixing member 140 at the other end, the distance between the frame module 110 and the wheel can be adjusted by controlling the adjusting module 150, so as to adapt to the chassis width of different vehicles, thereby improving the versatility of the modular drive and steering suspension integrated bridge 100.

[0077] It should be noted that the fixing member 140 is a steering tab, which is roughly an L-shaped plate.

[0078] In at least one embodiment of the present application, the fork suspension module 120 comprises:

[0079] The upper fork suspension 121 is arranged at one end of the frame module 110;

[0080] The lower fork suspension 122 is arranged at one end of the frame module 110;

[0081] The adjusting module 150 comprises:

[0082] The first adjusting assembly 151 is connected with the upper fork suspension 121 at one end and connected with the fixing member 140 at the other end;

[0083] The second adjusting assembly 152 is connected with the lower fork suspension 122 at one end and connected with the fixing member 140 at the other end.

[0084] In at least one embodiment of the present application, the upper fork suspension 121 is provided with a first threaded hole, and the fixing member 140 is provided with a second threaded hole;

[0085] The first adjusting assembly 151 comprises:

[0086] The first adjusting member 153 is provided with a first threaded part 1531 at one end and provided with a first rotating hole 1532 at the other end, and the first threaded part 1531 is connected with the first threaded hole in a threaded manner;

[0087] The second adjusting member 154 is provided with a second threaded part 1541 at one end and provided with a first ball part 1542 at the other end, the first ball part 1542 is movably accommodated in the first rotating hole 1532, the second adjusting member 154 is connected with the first adjusting member 153 in a rotating manner, and the second threaded part 1541 is connected with the second threaded hole in a threaded manner;

[0088] The length direction of the first adjusting member 153 is arranged along the direction from the frame module 110 to the fixing member 140.

[0089] In at least one embodiment of the present application, the upper wishbone suspension 121 is provided with a third threaded hole, and the fixing member 140 is provided with a fourth threaded hole;

[0090] The second adjusting assembly 152 comprises:

[0091] The third adjusting member 155 is provided with a third threaded portion at one end and a second rotating hole at the other end, and the third threaded portion is threadedly connected with the third threaded hole.

[0092] The fourth adjusting member 156 is provided with a fourth threaded portion at one end and a second ball portion at the other end, the second ball portion is movably accommodated in the second rotating hole, the third adjusting member 155 is rotationally connected with the fourth adjusting member 156, and the fourth threaded portion is threadedly connected with the fourth threaded hole.

[0093] The length direction of the third adjusting member 155 is arranged along the direction from the frame module 110 to the fixing member 140.

[0094] Please refer to Figures 1 to 4 In the present embodiment, the upper wishbone suspension 121 and the lower wishbone suspension 122 form a double wishbone damping suspension system.

[0095] By adjusting the engagement degree between the first adjusting member 153 and the upper wishbone suspension 121, and adjusting the engagement degree between the third adjusting member 155 and the lower wishbone suspension 122, the distance between the wishbone suspension module 120 and the fixing member 140 is adjusted to adapt to different widths of the chassis.

[0096] Secondly, by adjusting the second adjusting member 154 and the fourth adjusting member 156, the relative position of the hard point can be adjusted, thereby improving the comfort of the vehicle suspension system.

[0097] It should be noted that the first adjusting member 153 and the third adjusting member 155 are the same in shape, the outer shape of the first adjusting member 153 is roughly provided with a ring-shaped portion at one end, a first rotating hole 1532 is arranged at the geometric center position of the ring-shaped portion and penetrates through the ring-shaped portion, and a cylindrical first threaded portion 1531 is arranged at the other end, the axis of the first threaded portion 1531 is arranged perpendicularly to the axis of the first rotating hole 1532.

[0098] The second adjusting member 154 and the fourth adjusting member 156 are the same in shape, the outer shape of the second adjusting member 154 is roughly provided with a first ball portion 1542 at one end and a second threaded portion 1541 at the other end.

[0099] The length direction of the first adjusting member 153 is arranged along the direction from the frame module 110 to the fixing member 140, and the length direction of the third adjusting member 155 is arranged along the direction from the frame module 110 to the fixing member 140, so that adjusting the first adjusting member 153 and the third adjusting member 155 can change the distance from the double fork arm damping suspension system to the fixing member 140, thereby adapting to different widths of chassis,

[0100] It should be noted that the driving module 130 includes a hub motor and a motor pressing block, and the driving module 130 is arranged on the fixing member 140.

[0101] In at least one embodiment of the present application, the modular driving and steering suspension integrated bridge 100 further comprises:

[0102] The steering assembly 160 is arranged between the two fixing members 140, and the two ends of the steering assembly 160 are respectively rotationally connected with the two fixing members 140, so as to control the steering of the two wheels at the same end.

[0103] In at least one embodiment of the present application, the steering assembly 160 comprises:

[0104] A steering motor 161;

[0105] A direction machine 162 rotationally connected with the output end of the steering motor 161;

[0106] A steering arm 163, one end of which is arranged on the direction machine 162, and the other end of which is rotationally connected with the fixing member 140, so as to control the steering of the wheels.

[0107] Please refer to Figures 1 to 4 In this embodiment, the steering motor 161 moves to drive the direction machine 162 to move, so that the direction machine 162 drives the steering arm 163 to stretch and retract, so as to control the fixing member 140 to steer the wheels.

[0108] It should be noted that in one modular driving and steering suspension integrated bridge 100, the frame module 110 is two, the two frame modules 110 are respectively rotationally connected with the two wheels through two hub motors, and the hub motors are arranged on the fixing member 140. The fork arm suspension module 120 is two, which are respectively fixed with the two frame modules 110 through bolts, and the upper fork arm suspension 121 is located above the lower fork arm suspension 122.

[0109] The steering arm 163 is composed of a steering ball head pull rod and a steering lug, and the fixing member 140 is provided with a connecting plate, and the connecting plate is provided with a hole position rotationally connected with the steering ball head pull rod.

[0110] The direction machine 162 is connected with the two steering arms 163, so as to control the steering of the wheels on both sides.

[0111] The direction machine 162 and the steering motor 161 are bolted through motor flanges and spline flanges, and the two components are fixed to the inside of the vehicle body through a U-shaped bending plate, and the layout and size can be adjusted according to the motor demand.

[0112] In at least one embodiment of the present application, the frame module 110 comprises:

[0113] The mounting piece 111 is mounted on one side of the vehicle frame and rotatably connected with the fork arm suspension module 120 on the other side;

[0114] The anti-collision piece 112 is fixedly connected with the mounting piece 111.

[0115] In at least one embodiment of the present application, the modular drive steering suspension integrated bridge 100 further comprises:

[0116] The light group 170 is arranged on the anti-collision piece 112;

[0117] The towing ball 171 is arranged on the anti-collision piece 112.

[0118] Please refer to Figures 1 to 4 In this embodiment, the mounting piece 111 is used to provide a mounting connection position to facilitate the fixation of the fork arm suspension module 120 and the anti-collision piece 112. The two ends of the anti-collision piece 112 are fixedly connected with the two mounting pieces 111 respectively, thereby providing a fixed position for the anti-collision piece 112.

[0119] It should be noted that the mounting piece 111 is an ear piece, and two groups of ear pieces are fixed on the two sides of the vehicle frame respectively. Each group of ear pieces can be a whole plate that is bent and compressed, or four identical ear pieces that are arranged in parallel on the hole position of the vehicle frame.

[0120] The anti-collision piece 112 is an anti-collision rod, which is generally a concave-shaped rod. When subjected to low-speed impact, the anti-collision rod can reduce the impact force on the internal components of the vehicle by bending and crushing deformation, thereby protecting the safety of the vehicle.

[0121] In this embodiment, the modular drive steering suspension integrated bridge 100 is installed in front of and behind each other, which can realize double Ackerman steering, achieve a smaller steering radius, and realize differential steering in place by matching the hub motor. The tail towing ball 171 is a 50mm towing ball 171, which provides a larger load or towing capacity for the whole vehicle.

[0122] The light group 170 can provide lighting or light signals.

[0123] In at least one embodiment of the present application, the fork arm suspension module 120 further comprises:

[0124] A damping shock absorber 123 is rotatably connected to the frame module 110 at one end and rotatably connected to the lower fork arm suspension 122 at the other end. Shock absorbers 124 are arranged between the damping shock absorber 123 and the frame module 110 and between the damping shock absorber 123 and the lower fork arm suspension 122.

[0125] Please refer to Figures 1 to 4 In this embodiment, the damping shock absorber 123 is rotatably connected to the frame module 110 at one end and rotatably connected to the lower fork arm suspension 122 at the other end, thereby improving the shock absorption effect. At the same time, shock absorbers 124 are arranged between the damping shock absorber 123 and the frame module 110 and between the damping shock absorber 123 and the lower fork arm suspension 122, so that the comfort of the vehicle is better.

[0126] It should be noted that the shock absorber 124 is a shock absorbing ear piece.

[0127] In at least one embodiment of the present application, the modular drive and steering suspension integrated bridge 100 further comprises:

[0128] A brake system 180 is arranged on the fixing member 140 and controls the brake disc brake or disengagement brake of the vehicle.

[0129] In this embodiment, the brake system 180 includes a caliper seat having a movable hole;

[0130] A drive assembly is arranged on the caliper seat;

[0131] A brake assembly is rotatably connected to the drive assembly at one end and accommodated in the movable hole and in transmission connection with the caliper seat at the other end;

[0132] A brake piston is arranged on the end of the brake assembly away from the drive assembly, and the brake piston is movably accommodated in the movable hole;

[0133] The drive assembly moves to drive the brake assembly to move to push the brake piston to extend or be accommodated in the movable hole to drive the brake pad to brake or disengage from braking.

[0134] The drive assembly moves to drive the brake assembly to move so that the brake assembly controls the brake piston to extend to drive the brake pad to brake. The drive assembly moves in reverse to drive the brake assembly to move in reverse so that the brake assembly controls the brake piston to be accommodated in the movable hole to drive the brake pad to disengage from braking.

[0135] The brake is controlled by a wire-controlled machine, which makes maintenance simpler, has a shorter response time, and can support power-off brake holding to improve the safety of the vehicle.

[0136] The above merely describes the embodiments of the present application, and it should be pointed out that, for those skilled in the art, improvements can be made without departing from the inventive concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A modular drive-steer-suspension-integrated bridge, characterized in that, The utility model relates to a modularized drive steering suspension integrated bridge, which comprises a frame module, a fork arm suspension module, a drive module, a fixing part, an adjusting module and a steering assembly. The frame module is arranged on a vehicle frame. The fork arm suspension module is arranged on the frame module. The drive module is connected with a wheel. The fixing part is arranged on the end of the drive module away from the wheel. The adjusting module is connected with the fork arm suspension module at one end and with the fixing part at the other end. The distance between the frame module and the wheel can be adjusted by adjusting the adjusting module.

2. The modular drive steer suspension integrated bridge of claim 1, wherein, The fork arm suspension module comprises an upper fork arm suspension and a lower fork arm suspension. The upper fork arm suspension is arranged on the frame module. The lower fork arm suspension is arranged on the frame module. The adjusting module comprises a first adjusting assembly and a second adjusting assembly. The first adjusting assembly is screw-connected with the upper fork arm suspension at one end and screw-connected with the fixing part at the other end. The second adjusting assembly is screw-connected with the lower fork arm suspension at one end and screw-connected with the fixing part at the other end.

3. The modular drive steer suspension integrated bridge of claim 2, wherein, The upper fork arm suspension is provided with a first threaded hole. The fixing part is provided with a second threaded hole. The first adjusting assembly comprises a first adjusting part and a second adjusting part. The first adjusting part is provided with a first threaded part at one end and a first rotating hole at the other end. The second adjusting part is provided with a second threaded part at one end and a first ball part at the other end.

4. The modular drive steer suspension integrated bridge of claim 2, wherein, The first ball part is movably accommodated in the first rotating hole. The second adjusting part is rotatably connected with the first adjusting part. The second threaded part is screw-connected with the second threaded hole. The length direction of the first adjusting part is arranged from the frame module to the fixing part. The upper fork arm suspension is provided with a third threaded hole.

5. The modular drive steer suspension integrated bridge of claim 1, wherein, The fixing part is provided with a fourth threaded hole. The second adjusting assembly comprises a third adjusting part and a fourth adjusting part.

6. The modular drive steer suspension integrated bridge of claim 5, wherein, The third adjusting part is provided with a third threaded part at one end and a second rotating hole at the other end. The fourth adjusting part is provided with a fourth threaded part at one end and a second ball part at the other end. The second ball part is movably accommodated in the second rotating hole. The third adjusting part is rotatably connected with the fourth adjusting part.

7. The modular drive steer suspension integrated bridge of claim 1, wherein, The fourth threaded part is screw-connected with the fourth threaded hole. The length direction of the third adjusting part is arranged from the frame module to the fixing part. The modularized drive steering suspension integrated bridge further comprises a steering assembly arranged between the two fixing parts.

8. The modular drive steer suspension integrated bridge of claim 7, wherein, The two ends of the steering assembly are rotatably connected with the two fixing parts respectively to control the steering of the two wheels at the same end. The steering assembly comprises a steering motor, a direction machine and a steering arm. The output end of the steering motor is rotatably connected with the direction machine.

9. The modularized drive-steer-suspension-integrated bridge according to claim 2, characterized in that, The steering arm is arranged on the direction machine at one end and rotatably connected with the fixing part at the other end to control the steering of the wheel. The frame module comprises a mounting part and an anti-collision part. One side of the mounting part is mounted on the vehicle frame, and the other side is rotatably connected with the fork arm suspension module. The anti-collision part is fixedly connected with the mounting part. The modularized drive steering suspension integrated bridge further comprises a lamp group and a tow ball. The lamp group is arranged on the anti-collision part. The tow ball is arranged on the anti-collision part. The fork arm suspension module further comprises a first connecting rod and a second connecting rod. One end of the first connecting rod is rotatably connected with the upper fork arm suspension, and the other end is rotatably connected with the lower fork arm suspension. One end of the second connecting rod is rotatably connected with the upper fork arm suspension, and the other end is rotatably connected with the lower fork arm suspension. A damping shock absorber is rotatably connected to the frame module at one end and rotatably connected to the lower fork arm suspension at the other end. Shock absorbers are provided between the damping shock absorber and the frame module and between the damping shock absorber and the lower fork arm suspension.

10. The modular drive steer suspension integrated bridge of claim 1, wherein, The modular driving and steering suspension integrated bridge further comprises: A brake system is provided on the fixing member and controls the brake disc brake or disengagement brake of the vehicle.

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