CN221023842U

CN221023842U - Middle wheel distributed driving type diamond-like vehicle chassis

Info

Publication number: CN221023842U
Application number: CN202322481265.5U
Authority: CN
Inventors: 钟志华; 胡红舟
Original assignee: Dexian Automotive Technology Shanghai Co ltd; Tongji University
Current assignee: Dexian Automotive Technology Shanghai Co ltd; Tongji University
Priority date: 2023-09-11
Filing date: 2023-09-12
Publication date: 2024-05-28
Anticipated expiration: 2033-09-12

Abstract

The application discloses a diamond-like vehicle chassis driven by a middle wheel in a distributed mode, which comprises a vehicle frame and four wheel groups arranged in a diamond-like mode, wherein the front wheel group and the rear wheel group are respectively connected with the vehicle frame through corresponding front suspension assemblies and rear suspension assemblies, and the left wheel group and the right wheel group are respectively connected with the vehicle frame through corresponding left suspension assemblies and right suspension assemblies. The beneficial effects of the application are as follows: the power system adopts a longitudinally distributed arrangement structure, and an independent longitudinal swing arm structure is formed by a triangular suspension swing arm, a pull rod swing arm and an elastic element; the driving system can drive the transmission shafts to drive the left wheel set and the right wheel set respectively, and the front wheel and the rear wheel are combined for steering, so that the in-situ steering can be realized by adjusting the rotation speed difference of the inner wheel set and the outer wheel set; moreover, the transmission mechanism of the middle axle can be reduced through distributed arrangement, so that floor space is effectively reduced, and front and back transparent floor space can be realized.

Description

Middle wheel distributed driving type diamond-like vehicle chassis

Technical Field

The application relates to the technical field of vehicle engineering, in particular to a diamond-like vehicle chassis driven by a middle wheel in a distributed manner.

Background

The world automotive industry has developed over hundred years and automotive design and production technologies are becoming mature. So far, the automobile chassis structure design generally adopts a front axle and rear axle parallel arrangement structure, the front axle left and right wheels are used as steering wheels, and the chassis structure is optimized and improved for many years, so that the running safety, smoothness and steering stability of the chassis structure have no room for improvement. In order to further improve the comprehensive performance of the automobile chassis, a diamond-like automobile chassis begins to appear, wherein the automobile chassis is divided into a front axle, a middle axle and a rear axle, four wheels are arranged in a diamond shape, a left wheel and a right wheel are driving wheels, and a front wheel and a rear wheel are steering wheels. The power system of such chassis is still integrated, resulting in less space available on the frame.

Disclosure of utility model

The application aims to provide a diamond-like vehicle chassis with a distributed drive of a middle wheel, wherein a power system of the diamond-like vehicle chassis is distributed, so that a transmission mechanism of a middle axle can be reduced, floor space can be effectively reduced, front-back transparent floor space can be realized, and at least one technical problem related to the background technology can be solved.

In order to solve the technical problems, the application is realized as follows:

The embodiment of the application provides a diamond-like vehicle chassis with a distributed driving of middle wheels, which comprises a vehicle frame and four vehicle wheel groups which are arranged like a diamond, wherein the front wheel group and the rear wheel group are respectively connected with the vehicle frame through a corresponding front suspension assembly and a corresponding rear suspension assembly, a left wheel group and a right wheel group are respectively connected with the vehicle frame through a corresponding left suspension assembly and a corresponding right suspension assembly, each of the left suspension assembly and the right suspension assembly comprises a first axle, a driving motor, a speed change mechanism, a driving shaft, a suspension pull rod swing arm, a suspension pull rod, a shock absorber, a spring assembly and a suspension swing arm, the front wheel group and the rear wheel group are respectively rotatably arranged on the first axles of the left suspension assembly and the right suspension assembly, the driving motor is connected with the first axles through the speed change mechanism and the driving shaft to drive the front wheel group and/or the rear wheel group, one end of the suspension pull rod is hinged with the vehicle frame, the other end of the suspension pull rod is hinged with one end of the suspension pull rod, and the other end of the suspension pull rod is hinged with the first axle; one end of the suspension swing arm is connected with the first vehicle bridge, and the other end of the suspension swing arm is connected with the vehicle frame through the shock absorber and the spring assembly.

As a preferable improvement of the application, the left suspension assembly and the right suspension assembly also comprise a horizontal stabilizing piece and a vertical connecting piece, wherein the horizontal stabilizing piece is horizontally arranged, one end of the horizontal stabilizing piece is connected with the first axle, one end of the vertical connecting piece is connected with one end of the suspension swing arm far away from the first axle, and the other end of the vertical connecting piece is hinged with the other end of the horizontal stabilizing piece.

As a preferable improvement of the application, the shock absorber and spring assembly comprises a first shock absorber, one end of which is connected with the suspension swing arm, and the other end of which is connected with the frame, and a first spiral spring sleeved on the first shock absorber.

As a preferred development of the application, the transmission is a gearbox or reduction gearbox.

As a preferred improvement of the application, the wheel sets are all parallel double wheels.

As a preferable improvement of the application, the front suspension assembly and the rear suspension assembly comprise steering rotation main pin shafts, suspension mounting brackets, suspension upper mounting seats, second spiral springs, second shock absorbers, suspension lower mounting seats and second axles, wherein the suspension mounting brackets are fixedly arranged on a frame, the steering rotation main pin shafts are rotatably arranged in the suspension mounting brackets, the suspension upper mounting seats are fixedly arranged on the steering rotation main pin shafts, and the suspension lower mounting seats are connected with the second axles; the top end of the second shock absorber is fixedly arranged on the suspension upper mounting seat, and the bottom end of the second shock absorber is fixedly arranged on the suspension lower mounting seat; the second spiral spring is sleeved on the second shock absorber, one end of the second spiral spring is connected with the suspension upper mounting seat, and the other end of the second spiral spring is connected with the suspension lower mounting seat; the front wheel set and the rear wheel set are rotatably mounted on a second axle of the front suspension assembly and the rear suspension assembly respectively.

As a preferable improvement of the application, the steering rotation main pin shafts of the front suspension assembly and the rear suspension assembly are arranged in a non-vertical mode with an included angle in the horizontal direction.

As a preferred modification of the present application, the drive motor is a high-speed motor.

The beneficial effects of the application are as follows:

(1) The power system adopts a longitudinally distributed arrangement structure, an independent longitudinal swing arm structure is formed by the triangular suspension swing arm, the pull rod swing arm and the elastic element, the driving system can drive the transmission shaft to drive the left wheel set and the right wheel set respectively, the front wheels and the rear wheels are combined for steering, and the in-situ steering can be realized by adjusting the rotation speed difference of the inner wheel set and the outer wheel set; moreover, the transmission mechanism of the middle axle can be reduced through distributed arrangement, so that floor space is effectively reduced, and front and back transparent floor space can be realized.

(2) The double-drive motor is adopted for arrangement, and the speed is reduced through the speed change mechanism, so that the double-drive motor is more suitable for a high-speed motor, the size of the power assembly can be correspondingly reduced, the miniaturization and the high-speed are more facilitated, and the space requirement is reduced.

(3) The rigidity of the suspension can be ensured by adopting a connecting rod mechanism consisting of the suspension swing arm, the suspension pull rod swing arm and the suspension pull rod.

(4) For the wheel hub motor, reducible wheel end occupation space can reduce the unsprung mass simultaneously, reduces swing arm structural performance requirement, and is favorable to vehicle travelling comfort more.

(5) Through the swing arm of triangle arm structure, with first coil spring and first bumper shock absorber horizontal arrangement, reduce occupation altitude space.

Drawings

For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

Fig. 1 is a schematic diagram of the overall structure of a rhombic chassis driven by a middle wheel in a distributed manner according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a left suspension assembly according to an embodiment of the present application;

FIG. 3 is a second schematic diagram of a left suspension assembly according to an embodiment of the present application;

FIG. 4 is a third schematic structural view of a left suspension assembly according to an embodiment of the present application;

FIG. 5 is a schematic structural view of a front suspension assembly equipped with a front wheel set according to an embodiment of the present application;

fig. 6 is a second schematic structural view of a front suspension assembly equipped with a front wheel set according to an embodiment of the present application.

In the figure: 1. a frame; 2. a front wheel set; 3. a rear wheel set; 4. a left wheel set; 5. a right wheel set; 6. a front suspension assembly; 61. steering and rotating the main pin shaft; 62. a suspension mounting bracket; 63. a mounting seat is arranged on the suspension; 64. a second coil spring; 65. a second damper; 66. a suspension lower mounting seat; 67. a second axle; 7. a rear suspension assembly; 8. a left suspension assembly; 81. a first axle; 82. a driving motor; 83. a speed change mechanism; 84. a drive shaft; 85. suspension pull rod swing arm; 86. a suspension pull rod; 87. a shock absorber and spring assembly; 871. a first shock absorber; 872. a first coil spring; 88. a suspension swing arm; 89. a horizontal stabilizer; 810. a vertical connection; 9. and a right suspension assembly.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

Referring to fig. 1, a rhombic chassis with a distributed driving of middle wheels provided by the embodiment of the application comprises a frame 1, four wheel sets arranged like a rhombus, and the four wheel sets comprise a front wheel set 2, a rear wheel set 3, a left wheel set 4 and a right wheel set 5, wherein the front wheel set 2 and the rear wheel set 3 are respectively connected with the frame 1 through a corresponding front suspension assembly 6 and a corresponding rear suspension assembly 7, and the left wheel set 4 and the right wheel set 5 are respectively connected with the frame 1 through a corresponding left suspension assembly 8 and a corresponding right suspension assembly 9.

In some embodiments, the wheel sets are each parallel dual wheels.

Referring again to fig. 2-4, the left and right suspension assemblies 8 and 9 each include a first axle 81, a drive motor 82, a gear shifting mechanism 83, a drive shaft 84, a suspension strut swing arm 85, a suspension strut 86, a shock absorber and spring assembly 87, and a suspension swing arm 88.

The front wheel set 2 and the rear wheel set 3 are rotatably mounted on a first axle 81 of the left suspension assembly 8 and the right suspension assembly 9, respectively.

The drive motor 82 is connected to the first axle 81 via a gear change 83 and a drive shaft 84 for driving the front wheel set 2 and/or the rear wheel set 3.

One end of the suspension pull rod swing arm 85 is hinged with the frame 1, the other end of the suspension pull rod swing arm is hinged with one end of the suspension pull rod 86, and the other end of the suspension pull rod 86 is hinged with the first vehicle bridge 81.

One end of the suspension swing arm 88 is connected with the first axle 81, and the other end is connected with the frame 1 through the shock absorber and spring assembly 87.

The suspension pull rod 86 and the suspension swing arm 88 are respectively connected to the left and right sides of the first axle 81, and the suspension pull rod 86 is hinged to the suspension pull rod swing arm 85, so that the rigidity of the suspension can be ensured by the composed link mechanism.

In some embodiments, the left suspension assembly 8 and the right suspension assembly 9 each further include a horizontal stabilizer 89 and a vertical connector 810, where the horizontal stabilizer 89 is horizontally disposed and has one end connected to the first axle 81, and one end of the vertical connector 810 is connected to one end of the suspension swing arm 88 away from the first axle 81, and the other end is hinged to the other end of the horizontal stabilizer 89. In this way, the joint of the horizontal stabilizing piece 89 and the vertical connecting piece 810 forms a swing arm rotation center, and the suspension swing arm 88 drives the left and right wheel sets to rotate around the swing arm rotation center, so as to realize the up-and-down runout of the left and right wheel sets. Further, after the left and right wheel sets are rotated about the swing arm rotation center, the shock absorber and spring assembly 87 is compressed and stretched by the suspension swing arm 88.

Specifically, the damper and spring assembly 87 includes a first damper 871 having one end connected to the suspension swing arm 88 and the other end connected to the frame 1, and a first coil spring 872 sleeved on the first damper 871.

Further, the first coil spring 872 and the first damper 871 are horizontally arranged by the swing arm of the triangle arm structure, so that the occupied height space is reduced.

In some embodiments, the speed change mechanism 83 is a gearbox or a reduction gearbox, and the driving assembly formed by the driving motor 82, the speed change mechanism 83 and the driving shaft 84 may be disposed longitudinally or horizontally.

Referring again to fig. 5 and 6, the front suspension assembly 6 and the rear suspension assembly 7 each include a steering pivot pin 61, a suspension mounting bracket 62, a suspension upper mount 63, a second coil spring 64, a second shock absorber 65, a suspension lower mount 66, and a second axle 67.

The suspension mounting bracket 62 is fixedly arranged on the frame 1.

The steering rotation master pin 61 is rotatably mounted in the suspension mounting bracket 62, and specifically, the steering rotation master pin 61 is rotatably mounted in the suspension mounting bracket 62 through a bearing.

The suspension mounting seat 63 is fixedly arranged on the steering rotation main pin shaft 61.

The undersuspension mount 66 is connected to a second axle 67.

The top end of the second shock absorber 65 is fixedly arranged on the suspension upper mounting seat 63, and the bottom end is fixedly arranged on the suspension lower mounting seat 66.

The second coil spring 64 is sleeved on the second shock absorber 65, and one end of the second coil spring is connected with the suspension upper mounting seat 63, and the other end of the second coil spring is connected with the suspension lower mounting seat 66.

The front wheel set 2 and the rear wheel set 3 are rotatably mounted on a second axle 67 of the front suspension assembly 6 and the rear suspension assembly 7, respectively.

The steering rotation main pin shafts 61 of the front suspension assembly 8 and the rear suspension assembly 9 are arranged in a non-vertical mode with the included angle of the horizontal direction, and therefore steering return can be guaranteed.

The dual drive motor arrangement is adopted, and the speed is reduced through the speed change mechanism, so that the dual drive motor is more suitable for a high-speed motor, and therefore, in the embodiment provided by the application, the drive motor can be a high-speed motor.

The beneficial effects of the application are as follows:

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Furthermore, it should be noted that the scope of the methods and systems in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. The middle wheel distributed driving diamond-like vehicle chassis is characterized by comprising a vehicle frame and four vehicle wheel groups which are arranged in a diamond-like manner, wherein the front wheel groups and the rear wheel groups are respectively connected with the vehicle frame through corresponding front suspension assemblies and rear suspension assemblies, the left wheel groups and the right wheel groups are respectively connected with the vehicle frame through corresponding left suspension assemblies and right suspension assemblies, each of the left suspension assemblies and the right suspension assemblies comprises a first axle, a driving motor, a speed change mechanism, a driving shaft, a suspension pull rod swing arm, a suspension pull rod, a shock absorber, a spring assembly and a suspension swing arm, the front wheel groups and the rear wheel groups are respectively rotatably arranged on the first axles of the left suspension assemblies and the right suspension assemblies, the driving motor is connected with the first axles through the speed change mechanism and the driving shaft to drive the front wheel groups and/or the rear wheel groups, one end of the suspension pull rod is hinged with the vehicle frame, the other end of the suspension pull rod is hinged with one end of the suspension pull rod, and the other end of the suspension pull rod is hinged with the first axle; one end of the suspension swing arm is connected with the first vehicle bridge, and the other end of the suspension swing arm is connected with the vehicle frame through the shock absorber and the spring assembly.

2. The mid-wheel distributed drive diamond-like vehicle chassis according to claim 1, wherein the left and right suspension assemblies each further comprise a horizontal stabilizer and a vertical connector, the horizontal stabilizer is horizontally disposed and one end of the horizontal stabilizer is connected with the first axle, one end of the vertical connector is connected with one end of the suspension swing arm away from the first axle, and the other end of the vertical connector is hinged with the other end of the horizontal stabilizer.

3. The center wheel distributed drive diamond-like vehicle chassis according to claim 1, wherein the shock absorber and spring assembly comprises a first shock absorber with one end connected with the suspension swing arm and the other end connected with the vehicle frame, and a first coil spring sleeved on the first shock absorber.

4. The mid-wheel distributed drive diamond-like vehicle chassis of claim 1, wherein the speed change mechanism is a gearbox or reduction gearbox.

5. The mid-wheel distributed drive diamond-like vehicle chassis of claim 1, wherein the wheel sets are all parallel dual wheels.

6. The mid-wheel distributed drive diamond-like vehicle chassis according to claim 1, wherein the front and rear suspension assemblies each comprise a steering rotation king pin, a suspension mounting bracket, a suspension upper mounting seat, a second coil spring, a second shock absorber, a suspension lower mounting seat and a second vehicle axle, the suspension mounting bracket is fixedly arranged on the vehicle frame, the steering rotation king pin is rotatably arranged in the suspension mounting bracket, the suspension upper mounting seat is fixedly arranged on the steering rotation king pin, and the suspension lower mounting seat is connected with the second vehicle axle; the top end of the second shock absorber is fixedly arranged on the suspension upper mounting seat, and the bottom end of the second shock absorber is fixedly arranged on the suspension lower mounting seat; the second spiral spring is sleeved on the second shock absorber, one end of the second spiral spring is connected with the suspension upper mounting seat, and the other end of the second spiral spring is connected with the suspension lower mounting seat; the front wheel set and the rear wheel set are rotatably mounted on a second axle of the front suspension assembly and the rear suspension assembly respectively.

7. The mid-wheel distributed drive diamond-like vehicle chassis according to claim 1 or 6, wherein the steering rotation king pin shafts of the front suspension assembly and the rear suspension assembly are arranged in a non-vertical manner with respect to the horizontal direction.

8. The mid-wheel distributed drive diamond-like vehicle chassis of claim 1, wherein the drive motor is a high speed motor.