CN218929125U

CN218929125U - Distributed driving suspension system of drive-by-wire chassis

Info

Publication number: CN218929125U
Application number: CN202223108683.1U
Authority: CN
Inventors: 尤卫建
Original assignee: Aidesi Automobile Motor Wuxi Co ltd
Current assignee: Aidesi Automobile Motor Wuxi Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-04-28
Anticipated expiration: 2032-11-23

Abstract

The utility model provides a distributed driving suspension system of a drive-by-wire chassis, which comprises a shock absorber and a shock absorption sleeve, wherein the shock absorber is arranged in the shock absorption sleeve, the shock absorption sleeve is arranged on a skateboard chassis, and an elastic rubber shock absorption sleeve connecting structure is arranged at the joint of the shock absorption sleeve and the skateboard chassis. The steering system and the suspension system of the distributed driving electric scooter are integrated together, the effective control of various postures in the running process of the vehicle is realized through the domain controller, various running modes of the distributed driving are realized, and the problem that other forms of suspension and steering mechanisms such as in-situ turning, right-angle steering, lateral parking and the like cannot be realized is solved; the suspension structure of the current main flow control chassis is changed, the steering gear structure is reduced, the double fork arms or the multi-connecting rod structure is omitted, the total size of the suspension system is reduced, and the structural weight is reduced; the comfort in the running process of the vehicle is effectively improved.

Description

Distributed driving suspension system of drive-by-wire chassis

Technical Field

The utility model relates to the technical field of a wire control slide plate type chassis, in particular to a distributed driving suspension system of a wire control chassis.

Background

New energy automobiles increasingly enter the market, and various brands of passenger cars and commercial vehicles, new energy automobiles of traditional automobile manufacturers, new energy automobiles with new forces for making vehicles and intelligent electric skateboard chassis represent future trends of the new energy automobiles. Many automobile manufacturers and countries have established schedules for fuel vehicles to exit the market, also in our country. At present, some vehicle enterprises in China announce to stop the production of fuel vehicles, represent the trend of the vehicle enterprises in China, and electric vehicles are increasingly appeared in the market. However, most of suspension structures of China on the electric scooter driven in a distributed manner adopt a suspension mode of multiple connecting rods or double fork arms, so that the occupied space is large, the width of the front end region and the rear end region of the electric scooter is influenced by a suspension system, and the convenience in use of some application scenes is limited.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a distributed driving suspension system of a drive-by-wire chassis.

The technical scheme adopted for solving the technical problems is as follows:

the distributed drive suspension system of the drive-by-wire chassis comprises a shock absorber and a shock absorption sleeve, wherein the shock absorber is arranged in the shock absorption sleeve, and the shock absorption sleeve is arranged on a chassis of a skateboard; the damping sleeve comprises an upper guide cylinder and an integrally formed lower supporting seat, one side of the upper guide cylinder is connected with a worm gear motor, and the worm gear motor is connected with a steering structure; the other side of the upper guide cylinder is connected to the chassis of the sliding plate, and the upper guide cylinder is connected with the chassis of the sliding plate through an elastic rubber damping sleeve connecting structure.

Preferably, the shock absorber comprises a shock absorber piston cylinder, a shock absorber piston rod and a shock absorption spring;

the upper guide cylinder is internally provided with a damper piston cylinder, the lower guide cylinder is internally provided with a damper piston rod and a damper spring, and the damper piston rod and the damper spring are vertically distributed.

Further, the dampers in the same damper sleeve may be provided in one or more groups.

Further, the damper piston rod and the damper spring located in the same damper may be provided in one or more groups.

Further, the lower supporting seat comprises a lower guide cylinder and a main pin shaft bearing sleeve seat, and the upper guide cylinder and the lower guide cylinder are in clearance fit.

Further, the steering structure comprises a claw support, a fixing support and a main pin shaft fixing plate, wherein the two ends of the claw support are provided with main pin shafts in a penetrating mode, inner splines are arranged in the claw support, outer splines are arranged on the main pin shafts, and the inner splines are matched with the outer splines.

Further, a main pin shaft bearing sleeve seat is sleeved on the main pin shaft, and the lower guide cylinder is slidably arranged on the main pin shaft through the main pin shaft bearing sleeve seat.

Further, an upper bearing and a lower bearing are arranged at the upper end and the lower end of the main pin shaft bearing sleeve seat, and an upper bearing retainer ring is arranged above the upper bearing; the bottom of the main pin shaft is fixed on the claw bracket through a main pin shaft fixing plate; and the middle part of the claw bracket is connected with a fixed bracket.

Further, a dust cover is arranged at the sliding part of the main pin shaft; and dust covers are arranged on the outer sides of the upper guide cylinder and the lower guide cylinder.

Further, the shape of the damping sleeve is square, rectangular or hexagonal.

The utility model provides a distributed driving suspension system of a drive-by-wire chassis, which integrates a steering system and a suspension system of a distributed driving electric scooter (drive-by-wire chassis), realizes effective control of various postures in running of a vehicle through a domain controller, realizes various running modes of the distributed driving, and solves the problem that other forms of suspension and steering mechanisms such as in-situ turning, right-angle steering, lateral parking and the like cannot be realized; the suspension structure of the current main flow control chassis is changed, the steering gear structure is reduced, the double fork arms or the multi-connecting rod structure is omitted, the total size of the suspension system is reduced, and the structural weight is reduced; the steering mechanism is directly arranged on the suspension mechanism, the steering motor drives the turbine speed reducer to realize the steering function, a part of unsprung mass is transferred to the spring, and the comfort in the running process of the vehicle is improved.

Drawings

FIG. 1 is a schematic diagram of a distributed drive suspension system of a drive-by-wire chassis of the present utility model;

FIG. 2 is an enlarged view of M in FIG. 1;

fig. 3 is a cross-sectional view of A-A in fig. 1.

In the figure: 1-bracket, 2-main pin shaft, 3-worm gear motor, 4-upper guide cylinder and 5-lower support seat; 51-a lower guide cylinder, 52-a main pin shaft bearing sleeve; 6-damper, 61-damper piston cylinder, 62-damper piston rod, 63-damper spring, 7-skateboard chassis, 8-elastic rubber damping sleeve connecting structure and 9-damping sleeve; the device comprises an 11-goat's horn bracket, a 12-fixed bracket, a 13-main pin shaft fixed plate, a 14-upper bearing retainer ring, a 15-upper bearing and a 16-lower bearing.

Detailed Description

The present utility model will be further described with reference to the drawings and examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 3, the present utility model provides a distributed drive suspension system of a drive-by-wire chassis, comprising a shock absorber 6 and a shock absorbing enclosure 9, the shock absorber 6 being disposed within the shock absorbing enclosure 9, the shock absorbing enclosure 9 being mounted on a skateboard chassis 7. Specifically, the damping sleeve 9 is connected to the skateboard chassis 7 through an elastic rubber damping sleeve connection structure 8.

Of course, the damping sleeve 9 may also be mounted on the load-bearing carriage using a connection structure of the prior art.

The damping sleeve 9 comprises an upper guide cylinder 4 and an integrally formed lower supporting seat 5, one side of the upper guide cylinder 4 is connected with a worm gear reduction motor 3, the other side of the upper guide cylinder 4 is connected to a skateboard chassis 7, and specifically, the other side of the upper guide cylinder 4 is connected to a cross beam of the skateboard chassis 7. The upper guide cylinder 4 is connected with the skateboard chassis 7 through an elastic rubber damping sleeve connecting structure 8.

The damper 6 includes a damper piston cylinder 61, a damper piston rod 62, and a damper spring 63.

The upper guide cylinder 4 is internally provided with a damper piston cylinder 61, the lower guide cylinder 51 is internally provided with a damper piston rod 62 and a damper spring 63, and the damper piston rod 62 and the damper spring 63 are vertically arranged up and down.

Further, the dampers 6 located in the same damper sleeve 9 may be provided in one or more groups.

Still further, the damper piston rod 62 and the damper spring 63 located in the same damper 6 may be provided in one or more groups.

The shape of the damping sleeve 9 may be square, rectangular, hexagonal, or the like, as long as the structure of the damping sleeve 9 that reciprocates linearly is maintained.

The lower support seat 5 comprises a lower guide cylinder 51 and a main pin shaft bearing sleeve seat 52, and the upper guide cylinder 4 and the lower guide cylinder 51 are in clearance fit so as to ensure that the upper guide cylinder 4 and the lower guide cylinder 51 can freely slide.

The upper guide cylinder 4 is connected with a steering structure 1. Specifically, the upper guide cylinder 4 is connected with the steering structure 1 through the worm gear motor 3, the worm gear motor 3 can be connected with the upper guide cylinder 4 by adopting the coupler and the universal joint to the steering structure 1, and the steering structure and the worm gear motor 3 can be connected with the upper guide cylinder 4 by adopting a connecting mode in the prior art, so that redundant description is omitted here.

The steering structure 1 comprises a claw bracket 11, a fixed bracket 12, a main pin shaft fixed plate 13, an upper bearing retainer ring 14, an upper bearing 15 and a lower bearing 16. The two ends of the claw support 11 are penetrated and provided with a main pin shaft 2, an internal spline is arranged in the claw support 11, an external spline is arranged on the main pin shaft 2, the internal spline is matched with the external spline, a worm wheel of the worm gear reduction motor 3 is connected to the main pin shaft 2, a worm wheel of the worm gear reduction motor 3 can do linear reciprocating motion on the main pin shaft 2, and can also drive the main pin shaft 2 to rotate, so that steering motion of wheels is realized.

The main pin shaft 2 is sleeved with a main pin shaft bearing sleeve seat 52, and the lower guide cylinder 51 is slidably arranged on the main pin shaft 2 through the main pin shaft bearing sleeve seat 52, so that the shock absorber 6 can work stably when the wheel turns.

An upper bearing 15 and a lower bearing 16 are arranged at the upper end and the lower end of the main pin shaft bearing sleeve seat 52, and an upper bearing retainer ring 14 is arranged above the upper bearing 15.

The bottom of the main pin shaft 2 is fixed on the claw bracket 11 through a main pin shaft fixing plate 13.

The middle part of the claw bracket 11 is connected with a fixed bracket 12. The structure of the claw support 11 can ensure that the rotation is not interfered, and the worm gear reduction motor 3 freely rotates within the range of 180 degrees.

The sliding part of the main pin shaft 2 is provided with a dust cover.

Dust covers are arranged on the outer sides of the upper guide cylinder 4 and the lower guide cylinder 51.

The damper in the utility model can be a passive damper or an active damper.

The suspension system is specially designed for a distributed-driving electric scooter (drive-by-wire chassis) and is provided with a mechanical turbine steering structure and a vertical suspension structure. The structure changes the suspension structure of the current main flow control chassis, reduces the structure of the steering gear, reduces the structure of double fork arms or multiple connecting rods, reduces the total size of the suspension system and lightens the structure weight. The steering mechanism is directly arranged on the suspension mechanism, and the steering motor drives the turbine speed reducer to realize the steering function. Through such design, can realize transferring a part unsprung mass to the spring, improve the travelling comfort in the vehicle driving. By implementing the utility model, the steering system and the suspension system of the distributed driving electric scooter (the drive-by-wire chassis) can be integrated together, so that the functions of various running modes of the distributed driving, in-situ turning around, right-angle steering side-direction parking and other forms of suspension and steering mechanisms which cannot be realized are realized.

Of course, the present utility model is capable of other various embodiments and its several details are capable of modification and variation in light of the present utility model, as will be apparent to those skilled in the art, without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The distributed drive suspension system of the drive-by-wire chassis is characterized by comprising a shock absorber (6) and a shock absorption sleeve (9), wherein the shock absorber (6) is arranged in the shock absorption sleeve (9), and the shock absorption sleeve (9) is arranged on a skateboard chassis (7); the damping sleeve (9) comprises an upper guide cylinder (4) and a lower supporting seat (5) which are integrally formed, one side of the upper guide cylinder (4) is connected with a worm gear motor (3), and the worm gear motor (3) is connected with a steering structure (1); the other side of the upper guide cylinder (4) is connected to the skateboard chassis (7), and the upper guide cylinder (4) is connected with the skateboard chassis (7) through an elastic rubber damping sleeve connecting structure (8).

2. A distributed drive suspension system of a drive-by-wire chassis according to claim 1, characterized in that the shock absorber (6) comprises a shock absorber piston cylinder (61), a shock absorber piston rod (62) and a shock absorbing spring (63);

the upper guide cylinder (4) is internally provided with a shock absorber piston cylinder (61), the lower support seat (5) comprises a lower guide cylinder (51) and a main pin shaft bearing sleeve seat (52), a shock absorber piston rod (62) and a shock absorption spring (63) are arranged in the lower guide cylinder (51), and the shock absorber piston rod (62) and the shock absorption spring (63) are vertically distributed.

3. A distributed drive suspension system for a drive-by-wire chassis according to claim 2, characterized in that the dampers (6) in the same damping sleeve (9) can be arranged in one or more groups.

4. A distributed drive suspension system for a drive-by-wire chassis according to claim 2, characterized in that the damper piston rod (62) and the damper spring (63) in the same damper (6) can be arranged in one or more groups.

5. A distributed drive suspension system for a drive-by-wire chassis according to claim 3 or 4, characterized in that a clearance fit is used between the upper (4) and lower (51) guide drums.

6. The distributed drive suspension system of a drive-by-wire chassis according to claim 5, wherein the steering structure (1) comprises a claw support (11), a fixing support (12) and a main pin shaft fixing plate (13), two ends of the claw support (11) are provided with main pin shafts (2) in a penetrating way, internal splines are arranged in the claw support (11), external splines are arranged on the main pin shafts (2), and the internal splines are matched with the external splines.

7. A distributed drive suspension system for a drive-by-wire chassis according to claim 6, wherein the main pin (2) is sleeved with a main pin bearing housing (52), and the lower guide cylinder (51) is slidably mounted on the main pin (2) through the main pin bearing housing (52).

8. A distributed drive suspension system of a drive-by-wire chassis according to claim 7, characterized in that the upper and lower ends of the kingpin bearing housing seat (52) are provided with an upper bearing (15) and a lower bearing (16), and an upper bearing retainer ring (14) is arranged above the upper bearing (15);

the bottom of the main pin shaft (2) is fixed on the claw bracket (11) through a main pin shaft fixing plate (13);

the middle part of the claw bracket (11) is connected with a fixed bracket (12).

9. A distributed drive suspension system of a drive-by-wire chassis according to claim 7, characterized in that the sliding part of the kingpin axis (2) is provided with a dust boot; and dust covers are arranged on the outer sides of the upper guide cylinder (4) and the lower guide cylinder (51).

10. A distributed drive suspension system of a drive-by-wire chassis according to claim 1, characterized in that the damping sleeve (9) is square, rectangular or hexagonal in shape.