CN210309821U

CN210309821U - Low-floor passenger car rear suspension transverse stabilizer bar device

Info

Publication number: CN210309821U
Application number: CN201921106810.XU
Authority: CN
Inventors: 龚炫
Original assignee: Dongfeng Dana Axle Co Ltd
Current assignee: Dongfeng Dana Axle Co Ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-04-14
Anticipated expiration: 2029-07-16

Abstract

A transverse stabilizer bar device of a rear suspension of a low-floor passenger car is used for designing and arranging the rear suspension of the low-floor passenger car. The stabilizer bar bracket is fixed on the C-shaped arm through four bolts III; the upper end and the lower end of the rubber bushing are buckled through a stabilizer bar bracket and a lower cover plate respectively, and the stabilizer bar bracket and the lower cover plate are connected and fastened through two bolts I; one end of the suspender is connected with the transverse stabilizer bar assembly through a second bolt, a thick hexagon nut and a locking nut are used for fastening, a double-nut structure is adopted for preventing looseness, and the other end of the suspender is connected with a whole vehicle frame; the opening of the transverse stabilizer bar assembly faces the rear of the whole vehicle, the straight bar section is connected with the rear axle through a stabilizer bar support, and the swing arm section is connected with the frame of the whole vehicle through a suspender. The utility model discloses can provide sufficient whole car rigidity of heeling, conveniently dismantle and change and put car spatial arrangement, can satisfy low floor and wide passageway, minimum ground clearance performance requirement.

Description

Low-floor passenger car rear suspension transverse stabilizer bar device

Technical Field

The utility model relates to an automobile chassis technical field specifically is a suspension stabilizer bar device behind low-floor passenger train.

Background

The implementation comments on further strengthening and improving the travel service of the old and the disabled define the action outline of promoting the transportation barrier-free travel service, encourage the conditional urban newly-added buses to preferentially select low-floor buses, and realize the low-floor realization of the urban newly-added buses with over 500 ten thousand population by 2020. The stabilizer bar device structural arrangement is an important ring of the low-floor passenger vehicle rear suspension design.

The transverse stabilizer bar device can improve the roll rigidity of the whole vehicle, the roll angle of the passenger vehicle is less than 6 degrees when the passenger vehicle runs in a large turn, and the running safety of the whole vehicle can be ensured. For a low-floor pure electric bus, the arrangement of the transverse stabilizer bar device of the rear suspension frame needs to consider the space arrangement of a battery of the whole bus to meet the requirement and guarantee a wide channel and a minimum ground clearance. Some batteries of the whole car manufacturers are arranged behind the rear axle, if the opening of the transverse stabilizer bar is arranged forwards, and in order to avoid the battery space, the rod part of the transverse stabilizer bar needs to be arranged on the upper side, so that the floor of the whole car is raised, and the low floor cannot be realized.

Disclosure of Invention

In order to solve the existing problems, the invention aims to provide a rear suspension transverse stabilizer bar device of a low-floor passenger car, so as to improve the overall performance of the low-floor passenger car.

In order to realize the aim, the stabilizer bar bracket of the utility model is fixed on the C-shaped arm through four bolts III; the upper end and the lower end of the rubber bushing are buckled through a stabilizer bar bracket and a lower cover plate respectively, and the stabilizer bar bracket and the lower cover plate are connected and fastened through two bolts I; one end of the suspender is connected with the transverse stabilizer bar assembly through a second bolt, a thick hexagon nut and a locking nut are used for fastening, a double-nut structure is adopted for preventing looseness, and the other end of the suspender is connected with a whole vehicle frame; the opening of the transverse stabilizer bar assembly faces the rear of the whole vehicle, the straight bar section is connected with the rear axle through a stabilizer bar support, and the swing arm section is connected with the frame of the whole vehicle through a suspender.

The transverse stabilizer bar assembly comprises a transverse stabilizer bar and a composite bushing assembly, wherein the transverse stabilizer bar is of a U-shaped structure, the diameter of the transverse stabilizer bar is 40-50 mm, and the length of a swing arm is 400-460 mm; the composite bushing assembly and the transverse stabilizer bar are in small clearance fit, a special press is pressed into a mounting hole of the transverse stabilizer bar, the composite bushing assembly is symmetrical relative to the center line of the transverse stabilizer bar, and the end face of the composite bushing assembly is 2-4 mm higher than the end face of the mounting hole of the transverse stabilizer bar.

The transverse stabilizer bar assembly is arranged behind the whole vehicle and behind the rear axle; the transverse stabilizer bar assembly is arranged below the horizontal plane of the axle housing; the gap between the transverse stabilizer bar assembly and the C-shaped arm is not less than 15 mm.

The appearance of stabilizer bar support is no longer than the vertical plane of motor assembly, is no longer than the horizontal plane of axle housing.

Compared with the prior art, the utility model, can provide sufficient whole car rigidity of heeling, conveniently dismantle and change and put car spatial arrangement, can satisfy low floor and wide passageway, minimum ground clearance performance requirement.

Drawings

Fig. 1 is a front view of the structure of the present invention.

Fig. 2 is a schematic view of the stabilizer bar assembly of fig. 1.

Fig. 3 is a general structural view of the rear suspension stabilizer bar device of the present invention.

Fig. 4 is a partial directional view of the rear suspension stabilizer bar device of the present invention.

In the figure: a C-arm; 2. a motor assembly; 3. a stabilizer bar support; 4. an axle housing; a stabilizer bar assembly; 51. a stabilizer bar; 52. a composite bushing assembly; 6. a first bolt; 7. a lower cover plate; 8. a second bolt; 9. a boom; 10. a thick hexagonal nut; a locking nut; 12. a third bolt; 13. a rubber bushing.

Detailed Description

As shown in fig. 1, 2, 3 and 4, the stabilizer bar bracket 3 of the present invention is fixed to the C-arm 1 of the axle assembly by four bolts three 12; the transverse stabilizer bar assembly 5 is sleeved with a rubber bushing 13, the upper end and the lower end of the transverse stabilizer bar assembly are respectively buckled by a stabilizer bar bracket 3 and a lower cover plate 7, and the stabilizer bar bracket 3 and the lower cover plate 7 are connected and fastened through two bolts 6; one end of the suspender 9 is connected with the transverse stabilizer bar assembly 5, and the other end is connected with the whole vehicle frame; the suspender 9 is connected with the transverse stabilizer bar assembly 5 through a second bolt 8, is fastened by a thick hexagon nut 10 and a locking nut 11, and is anti-loose by adopting a double-nut structure.

As shown in FIG. 2, the stabilizer bar assembly 5 comprises a stabilizer bar 51 and a composite bushing assembly 52, wherein the stabilizer bar 51 is of a U-shaped structure, the diameter is 40-50 mm, and the length of the swing arm is 400-460 mm, so that the sufficient roll stiffness of the whole vehicle can be provided, and the spatial arrangement interference with the vehicle frame can be avoided. The composite bush assembly 52 and the stabilizer bar 51 are in small clearance fit, a special press is pressed into the mounting hole of the stabilizer bar 51, the composite bush assembly is symmetrical relative to the center line of the stabilizer bar 51, and the end face of the composite bush assembly 52 is 2-4 mm higher than the end face of the mounting hole of the stabilizer bar 51.

As shown in fig. 3, the stabilizer bar assembly 5 is disposed behind the entire vehicle and behind the rear axle; the opening of the transverse stabilizer bar assembly 5 faces the rear of the whole vehicle; the transverse stabilizer bar assembly 5 is lower than the horizontal plane of the axle housing 4; the amount of clearance between the stabilizer bar assembly 5 and the C-arm 1 is not less than 15 mm. The appearance of stabilizer bar support 3 is no longer than the vertical plane of motor assembly 2, is no longer than the horizontal plane of axle housing 4, has guaranteed the horizontal passageway width of whole car.

As shown in fig. 4, the stabilizer bar assembly 5 is fastened by a bolt 6 by fastening the stabilizer bar bracket 3 and the lower cover 7 in the up-down direction. The structure can facilitate the disassembly and the replacement of the transverse stabilizer bar assembly 5, and the maintenance of the whole vehicle is facilitated. And rubber bush 13 is adopted among stabilizer bar support 3, lower cover plate 7 and stabilizer bar 51 to cushion deformation, is favorable to improving stabilizer bar support 3's atress. The composite bushing assembly 52 is used between the suspension rod 9 and the stabilizer bar 51 for buffering deformation, which is beneficial to improving the stress of the suspension rod 9 and the stabilizer bar 51.

Claims

1. The utility model provides a suspension stabilizer bar device behind low-floor passenger train which characterized in that: the stabilizer bar bracket (3) is fixed on the C-shaped arm (1) through four bolts III (12); a rubber bushing (13) is sleeved on the transverse stabilizer bar assembly (5), the upper end and the lower end of the rubber bushing (13) are buckled through a stabilizer bar bracket (3) and a lower cover plate (7) respectively, and the stabilizer bar bracket (3) and the lower cover plate (7) are connected and fastened through two bolts I (6); one end of the suspender (9) is connected with the transverse stabilizer bar assembly (5) through a second bolt (8), a thick hexagon nut (10) and a locking nut (11) are used for fastening, a double-nut structure is adopted for preventing looseness, and the other end of the suspender is connected with a whole vehicle frame; the opening of the transverse stabilizer bar assembly (5) faces the rear of the whole vehicle, the straight bar section is connected with the rear axle through a stabilizer bar support (3), and the swing arm section is connected with the frame of the whole vehicle through a suspender (9).

2. A low-floor passenger vehicle rear suspension stabilizer bar apparatus as set forth in claim 1, wherein: the stabilizer bar assembly (5) comprises a stabilizer bar (51) and a composite bushing assembly (52), wherein the stabilizer bar (51) is of a U-shaped structure, the diameter of the stabilizer bar is 40-50 mm, and the length of a swing arm is 400-460 mm; the composite bushing assembly (52) is in small clearance fit with the transverse stabilizer bar (51), a special press is used for pressing into the mounting hole of the transverse stabilizer bar (51), the transverse stabilizer bar is symmetrical relative to the center line of the transverse stabilizer bar (51), and the end face of the composite bushing assembly (52) is 2-4 mm higher than the end face of the mounting hole of the transverse stabilizer bar (51).

3. A low-floor passenger vehicle rear suspension stabilizer bar apparatus as set forth in claim 1, wherein: the transverse stabilizer bar assembly (5) is arranged behind the whole vehicle and behind a rear axle.

4. A low-floor passenger vehicle rear suspension stabilizer bar apparatus as set forth in claim 1, wherein: the transverse stabilizer bar assembly (5) is arranged below the horizontal plane of the axle housing (4); the gap between the transverse stabilizer bar assembly (5) and the C-shaped arm (1) is not less than 15 mm.

5. A low-floor passenger vehicle rear suspension stabilizer bar apparatus as set forth in claim 1, wherein: the appearance of stabilizer bar support (3) is no longer than the vertical plane of motor assembly (2), is no longer than the horizontal plane of axle housing (4).