CN216545616U

CN216545616U - Disconnected rear axle with spiral spring damping structure

Info

Publication number: CN216545616U
Application number: CN202123226114.2U
Authority: CN
Inventors: 毕书君; 赵俊丽; 王维俊
Original assignee: Hubei Meibaokang Qing Heavy Engineering Technology Co ltd
Current assignee: Hubei Meibaokang Qing Heavy Engineering Technology Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-05-17
Anticipated expiration: 2031-12-21

Abstract

A disconnected rear axle with a spiral spring damping structure comprises a spiral spring damper, a damper support, a wheel edge, an outer trailing arm, an inner trailing arm and a trailing arm support. The rear axle with the disconnected spiral spring damping structure is low in center of gravity and small in occupied space, and can be suitable for complicated road sections.

Description

Disconnected rear axle with spiral spring damping structure

Technical Field

The utility model relates to the technical field of automobile manufacturing, in particular to a rear axle with a disconnected spiral spring damping structure.

Background

At present, automobiles on the market generally adopt rear axle drive, the structural center of gravity of the automobile is high, the occupied space is large, and the application range is narrow.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical defects, the utility model aims to provide a rear axle of a disconnected spiral spring shock absorption structure.

The technical scheme adopted by the utility model is as follows: a rear axle of a disconnected spiral spring damping structure comprises a spiral spring damper, a damper support, a wheel edge, an outer trailing arm, an inner trailing arm and a trailing arm support, wherein one end of the outer trailing arm is connected with the trailing arm support, the other end of the outer trailing arm is connected with the damper support, one end of the inner trailing arm is connected with the trailing arm support, the other end of the inner trailing arm is connected with the damper support, the spiral spring damper is arranged on the damper support, the wheel edge comprises a rotating part, an outer fixing part and an inner fixing part, a rotating shaft penetrates through the rotating part, two ends of the rotating shaft are respectively rotatably arranged on the outer fixing part and the inner fixing part, the outer fixing part is connected with the outer trailing arm through a first connecting mechanism, the first connecting mechanism comprises a pin shaft, a pin shaft sleeve, a pin shaft cushion block and a first nut, and the pin shaft sleeve are arranged on the inner side of the outer trailing arm, the pin shaft cushion block and the first nut are arranged on the outer side of the outer towing arm, one end of the pin shaft is connected with the outer side fixing part, and the other end of the pin shaft penetrates through the pin shaft sleeve, the pin shaft cushion block and the outer towing arm in sequence and then is connected with the first nut; the inner side fixing portion is connected with the inner dragging arm through a second connecting mechanism, the second connecting mechanism comprises a bolt, an L-shaped support, a square flange and a second nut, the bolt is arranged on the outer side of the inner dragging arm, the L-shaped support, the square flange and the second nut are arranged on the inner side of the inner dragging arm, the square flange is fixedly installed on the inner side fixing portion, and the bolt is connected with the second nut after penetrating through the inner dragging arm, the L-shaped support and the square flange in sequence.

The outer trailing arm and the inner trailing arm are symmetrically arranged.

The lower part of the spiral spring shock absorber is connected with the shock absorber support.

Compared with the prior art, the utility model has the following beneficial effects: the rear axle with the disconnected spiral spring damping structure is low in center of gravity and small in occupied space, and can be suitable for complicated road sections.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the first attachment mechanism of the present invention;

FIG. 3 is an exploded view of a second attachment mechanism of the present invention;

fig. 4 is a schematic view of the structure of the utility model mounted on a vehicle frame.

Detailed Description

The utility model is described in detail below with reference to the figures and the specific embodiments.

As shown in fig. 1 to 3, a rear axle of a disconnected spiral spring damping structure includes a spiral spring damper 1, a damper support 2, a wheel rim 3, an outer trailing arm 4, an inner trailing arm 5 and a trailing arm support 6, wherein one end of the outer trailing arm 4 is connected with the trailing arm support 6, the other end is connected with the damper support 2, one end of the inner trailing arm 5 is connected with the trailing arm support 6, the other end is connected with the damper support 2, the spiral spring damper 1 is disposed on the damper support 2, the wheel rim 3 includes a rotating portion 31, an outer fixing portion 32 and an inner fixing portion 33, a rotating shaft penetrates through the rotating portion 31, two ends of the rotating shaft are respectively rotatably disposed on the outer fixing portion 32 and the inner fixing portion 33, the outer fixing portion is connected with the outer trailing arm 4 through a first connecting mechanism, and the first connecting mechanism includes a pin shaft 71, a pin shaft sleeve 72, and a second connecting mechanism includes a pin shaft, a pin shaft sleeve 72, a first connecting mechanism, a second connecting mechanism, and a third connecting mechanism, The pin shaft 71 and the pin shaft sleeve 72 are arranged on the inner side of the outer trailing arm 4, the pin shaft cushion 73 and the first nut 74 are arranged on the outer side of the outer trailing arm 4, one end of the pin shaft 71 is connected with the outer fixing part 32, and the other end of the pin shaft 71 sequentially penetrates through the pin shaft sleeve 72, the pin shaft cushion 73 and the outer trailing arm 4 and then is connected with the first nut 74; the inner fixing portion 33 is connected with the inner trailing arm 5 through a second connecting mechanism, the second connecting mechanism comprises a bolt 81, an L-shaped support 82, a square flange 83 and a second nut 84, the bolt 81 is arranged on the outer side of the inner trailing arm 5, the L-shaped support 82, the square flange 83 and the second nut 84 are arranged on the inner side of the inner trailing arm 5, the square flange 83 is fixedly installed on the inner fixing portion 33, and the bolt 81 is connected with the second nut 84 after sequentially penetrating through the inner trailing arm 5, the L-shaped support 82 and the square flange 83.

The outer trailing arm 4 and the inner trailing arm 5 are symmetrically arranged.

The lower part of the spiral spring shock absorber 1 is connected with a shock absorber bracket 2.

As shown in fig. 4, when the present invention is mounted on the vehicle frame 9, the trailing arm bracket 6 is movably mounted on one end of the vehicle frame 9 through the center pin 11, the shock absorber bracket 2 is movably mounted on the other end of the vehicle frame 9, the upper portion of the coil spring shock absorber 1 is fixedly mounted on the upper portion of the vehicle frame 9, and the tire 10 is mounted on the rotating portion 31. The outer fixing portion 32 is fixedly attached to the outer trailing arm 4, and the inner fixing portion 33 is fixedly attached to the inner trailing arm 5. When the vehicle runs and the tire meets a bulge, the outer towing arm 4 and the inner towing arm 5 rotate around the central pin shaft 11 by taking the towing arm fixing support 6 as the center, and the function of vertical jump of the tire is met by compression or extension of the spiral spring shock absorber 1. The utility model is a longitudinal structure, does not occupy space, is embedded in the frame, and has independent runout of the left and right wheel edges of the vehicle.

The utility model can be used on a 4.5T electric logistics vehicle, is a disconnected axle, adopts a spiral spring shock absorber structure, adopts a double-trailing-arm structure to ensure the posture of a tire, and cannot generate the phenomenon of deflection.

When the vehicle type with the same specification is used, the space of the utility model is larger than that of the left and right wheels of the common spiral spring rear axle; the spiral spring shock absorber and the towing arm support are respectively positioned on two sides of the wheel edge, so that the bearing force of the shock absorbing spring can be reduced; the jumping amplitude of the rear wheel is increased, and the rear wheel can adapt to a more complex road section.

The above embodiments are based on the technical solution of the present invention, and detailed implementation and specific operation processes are given, but the scope of the present invention is not limited to the above embodiments.

Claims

1. The utility model provides a disconnected coil spring shock-absorbing structure rear axle which characterized in that: the shock absorber comprises a spiral spring shock absorber, a shock absorber support, a wheel edge, an outer trailing arm, an inner trailing arm and a trailing arm support, wherein one end of the outer trailing arm is connected with the trailing arm support, the other end of the outer trailing arm is connected with the shock absorber support, one end of the inner trailing arm is connected with the trailing arm support, the other end of the inner trailing arm is connected with the shock absorber support, the spiral spring shock absorber is arranged on the shock absorber support, the wheel edge comprises a rotating part, an outer fixing part and an inner fixing part, a rotating shaft penetrates through the rotating part, two ends of the rotating shaft are respectively rotatably arranged on the outer fixing part and the inner fixing part, the outer fixing part is connected with the outer trailing arm through a first connecting mechanism, the first connecting mechanism comprises a pin shaft, a pin shaft sleeve, a pin shaft cushion block and a first nut, the pin shaft and the pin shaft sleeve are arranged on the inner side of the outer trailing arm, and the pin shaft and the first nut are arranged on the outer side of the outer trailing arm, one end of the pin shaft is connected with the outer fixing part, and the other end of the pin shaft penetrates through the pin shaft sleeve, the pin shaft cushion block and the outer towing arm in sequence and then is connected with the first nut; the inner side fixing portion is connected with the inner dragging arm through a second connecting mechanism, the second connecting mechanism comprises a bolt, an L-shaped support, a square flange and a second nut, the bolt is arranged on the outer side of the inner dragging arm, the L-shaped support, the square flange and the second nut are arranged on the inner side of the inner dragging arm, the square flange is fixedly installed on the inner side fixing portion, and the bolt is connected with the second nut after penetrating through the inner dragging arm, the L-shaped support and the square flange in sequence.

2. A breakaway coil spring shock absorbing structural rear axle of claim 1, wherein: the outer trailing arm and the inner trailing arm are symmetrically arranged.

3. A breakaway coil spring shock absorbing structural rear axle of claim 1, wherein: the lower part of the spiral spring shock absorber is connected with the shock absorber support.