CN204506396U - The breakaway-element independent suspension back axle assembly of horizontal multi-disc leaf spring - Google Patents

Abstract

The utility model provides a disconnected independent suspension rear axle assembly with multiple leaf springs placed horizontally, comprising: a rear axle support assembly (1), a balance bar assembly (2), and a rear leaf spring assembly (3) , left rear horn (4), right rear horn (5), left damper (6) and right damper (7); have the following advantages: (1) the horizontal leaf spring replaces the coil spring in the original independent suspension Combined with the swing arm, it not only has the ride comfort of independent suspension, but also has the advantages of simple structure, small space occupation, few parts, low cost, small space occupation and high reliability, which is beneficial to the later production and manufacturing. (2) The performance of the disconnected rear axle is realized through multiple leaf springs and dampers, which can achieve good driving stability and riding comfort while ensuring a simple structure. (3) Through a special structure of the balance bar assembly, the car has an excellent anti-rolling effect and improves driving safety.

Description

Disconnected independent suspension rear axle assembly with multiple leaf springs placed horizontally

technical field

The utility model belongs to the technical field of automobile design and manufacture, in particular to a disconnected independent suspension rear axle assembly with multiple plate springs placed horizontally.

Background technique

The rear axle assembly mainly includes two structural forms: the non-independent suspension rear axle and the independent suspension rear axle; among them, the structural characteristics of the non-independent suspension rear axle are: the left and right wheels are connected by an integral shaft, and then It is connected to the frame through the suspension; it has the problem of poor driving comfort, especially when driving on uneven roads, the left and right wheels affect each other, and the vehicle body is easy to tilt, which directly affects the driving comfort. The characteristics of the independent suspension rear axle are: each wheel is separately mounted on the body or the axle through a set of suspension, the axle is disconnected, and the middle section is fixed on the frame or the body; At this time, the left and right suspensions do not affect each other, thereby improving the ride comfort. However, the existing independent suspensions, mainly MacPherson independent suspensions or multi-link independent suspensions, have the problems of complex structure and high cost; besides, their damping effect and anti-tilt effect still have certain limitations, thereby reducing driving comfort.

Utility model content

Aiming at the defects in the prior art, the utility model provides a disconnected independent suspension rear axle assembly with multiple leaf springs placed horizontally, which can effectively solve the above problems.

The technical scheme that the utility model adopts is as follows:

The utility model provides a disconnected independent suspension rear axle assembly with multiple leaf springs placed horizontally, comprising: a rear axle support assembly (1), a balance bar assembly (2), and a rear leaf spring assembly (3) , left rear horn (4), right rear horn (5), left damper (6) and right damper (7);

The left rear horn (4) and the right rear horn (5) are arranged symmetrically, the lower end of the left rear horn (4) is horizontally provided with a 4-1 connector, and the upper end of the left rear horn (4) A 4-2 connecting piece is arranged laterally; a 5-1 connecting piece is arranged horizontally at the lower end of the right rear horn (5), and a 5-2 connecting piece is arranged horizontally at the upper end of the right rear horn (5);

The rear leaf spring assembly (3) is arranged between the left rear horn (4) and the right rear horn (5), and the left end of the rear leaf spring assembly (3) is connected to the left The 4-1 connector of the rear horn (4) is fixedly connected, and the right end of the rear leaf spring assembly (3) is fixedly connected with the 5-1 connector of the right rear horn (5);

The bottom plate of the rear axle support assembly (1) is fixed on the middle part of the rear leaf spring assembly (3); the upper part of the rear axle support assembly (1) is fixed to the balance bar assembly (2); The left side and the right side of the rear axle support assembly (1) are respectively provided with a first installation beam (1-1) and a second installation beam (1-2); the first installation beam (1- 1) and the second mounting beam (1-2) are used to fix the rear axle support assembly (1) to the vehicle body or chassis;

The stabilizer bar assembly (2) has a four-section structure, and from left to right are the leaf spring (2-1) on the left rear axle, the left shift fork (2-2), the right shift fork (2-3) and The leaf spring (2-4) on the right rear axle; wherein, the left end of the leaf spring (2-1) on the left rear axle is the left leaf spring steel sleeve assembly (2-5), and the left leaf spring steel sleeve assembly (2-5) is fixed to the 4-2 connector of the left rear horn (4); the right end of the leaf spring (2-1) on the left rear axle passes through the first rotation shaft (2-6) and The left end of the left shift fork (2-2) is rotatably connected; the left end of the right shift fork (2-3) is a groove (2) adapted to the left end of the left shift fork (2-2). -7); the left end of the left shift fork (2-2) is located in the groove (2-7), when the left shift fork (2-2) rotates, the right shift fork can be driven by friction The shift fork (2-3) rotates in reverse; the right end of the right shift fork (2-3) can be connected to the left end of the leaf spring (2-4) on the right rear axle through the second rotating shaft (2-8) Rotationally connected, the right end of the leaf spring (2-4) on the right rear axle is the right leaf spring steel sleeve assembly (2-9), and the right leaf spring steel sleeve assembly (2-9) is fixed to the right The 5-2 connector of the back horn (5);

In addition, the first rotating shaft (2-6) passes through the left mounting hole opened in the rear axle bracket assembly (1), and the second rotating shaft (2-8) passes through the left mounting hole opened in the rear axle bracket assembly (1). the right mounting hole of the axle support assembly (1), thereby fixing the balance bar assembly (2) to the rear axle support assembly (1);

The bottom end of the left damper (6) is fixed to the 4-1 connector of the left rear horn (4), and the top end of the left damper (6) is fixed to the vehicle body; the right damper (7) ) is fixed to the 5-1 connector of the right rear horn (5), and the top of the right damper (7) is fixed to the vehicle body.

Preferably, the left damper (6) and the right damper (7) are piston rods.

Preferably, the rear leaf spring assembly (3) is composed of at least two lower plates of the rear leaf spring superimposed and fixed together by bolts.

The disconnected independent suspension rear axle assembly provided by the utility model has the following advantages:

(1) The horizontal leaf spring combines the coil spring and the swing arm in the original independent suspension into one, which not only has the ride comfort of the independent suspension, but also has the advantages of simple structure, small space occupation, few parts and low cost , Occupy small space and high reliability, which is beneficial to the later production and manufacturing.

(2) The performance of the disconnected rear axle is realized through multiple leaf springs and dampers, which can achieve good driving stability and ride comfort while ensuring a simple structure.

(3) Through a special structure of the balance bar assembly, the car has an excellent anti-rolling effect and improves driving safety.

Description of drawings

Fig. 1 is the three-dimensional structural schematic diagram of the disconnected independent suspension rear axle assembly of the horizontal multi-leaf leaf spring provided by the utility model;

Fig. 2 is the front view of the disconnected independent suspension rear axle assembly provided by the utility model with multiple plate springs placed horizontally;

Fig. 3 is a top view of the disconnected independent suspension rear axle assembly provided by the utility model with multiple leaf springs placed horizontally;

Fig. 4 is a side view of the disconnected independent suspension rear axle assembly provided by the utility model with multiple leaf springs placed horizontally;

Fig. 5 is a schematic diagram of the disassembled state of the disconnected independent suspension rear axle assembly provided by the utility model with horizontal multi-leaf leaf springs;

Fig. 6 is a structural schematic diagram of the balance bar assembly provided by the present invention.

Detailed ways

The utility model is described in detail below in conjunction with accompanying drawing:

Referring to Figure 1-Figure 5, the utility model provides a disconnected independent suspension rear axle assembly with multiple leaf springs placed horizontally, including: rear axle support assembly 1, balance bar assembly 2, rear leaf spring assembly 3. Left rear horn 4, right rear horn 5, left damper 6 and right damper 7; the following describes each component in detail:

(1) Left rear horn and right rear horn

The rear left horn 4 and the rear right horn 5 are arranged symmetrically, the lower end of the rear left horn 4 is provided with a 4-1 connector horizontally, and the upper end of the rear left horn 4 is horizontally provided with a 4-2 connector; the lower end of the rear right horn 5 A 5-1 connecting piece is arranged horizontally, and a 5-2 connecting piece is arranged horizontally on the upper end of the right rear horn 5;

Wherein, each connecting piece can be a bolt hole, and the balance bar assembly, the rear leaf spring assembly, the left damper and the right damper are fixed on the horn through each connecting piece.

(2) Rear leaf spring assembly

The rear leaf spring assembly 3 is arranged between the left rear horn 4 and the right rear horn 5, and the left end of the rear leaf spring assembly 3 is fixedly connected with the 4-1 connector of the left rear horn 4, and the rear leaf spring assembly The right end of 3 is fixedly connected with the 5-1 connector of right rear horn 5;

The leaf spring with the above structural form can effectively play a damping effect and improve driving comfort.

In addition, as an improvement, referring to Figure 1, the rear leaf spring assembly provided by the utility model is composed of at least two rear leaf spring lower plates superimposed. In Figure 1, it is composed of five rear leaf spring lower plates. and bolted together in the middle. The advantages of this structural form are: during the driving process, since the leaf springs are elastic elements, the adjacent leaf springs rub against each other to play a certain damping effect, thereby increasing the ride comfort; in addition, the rear leaf spring assembly The horizontal and transverse arrangement can enhance the overall torsion resistance of the axle at the same time and increase the safety.

(3) Rear axle bracket assembly

The bottom plate of the rear axle support assembly 1 is fixed in the middle of the rear leaf spring assembly 3; the upper part of the rear axle support assembly 1 is fixed with the balance bar assembly 2; There are a first installation beam 1-1 and a second installation beam 1-2; the first installation beam 1-1 and the second installation beam 1-2 are used to fix the rear axle support assembly 1 to the body or chassis;

(4) Balance bar assembly

The balance bar assembly belongs to the core innovation part of the rear axle assembly provided by the utility model. Referring to Fig. 6, it is a schematic structural diagram of the balance bar assembly. Leaf spring 2-1 on the bridge, left shift fork 2-2, right shift fork 2-3 and leaf spring 2-4 on the right rear axle; wherein, the left end of the leaf spring 2-1 on the left rear axle is left leaf spring steel Cover assembly 2-5, the left plate spring steel cover assembly 2-5 is fixed to the 4-2 connector of the left rear horn 4; the right end of the leaf spring 2-1 on the left rear axle passes through the first rotating shaft 2- 6 is rotatably connected with the left end of the left shift fork 2-2; the left end of the right shift fork 2-3 is a groove 2-7 matching the left end of the left shift fork 2-2; the left end of the left shift fork 2-2 Located in the groove 2-7, when the left shift fork 2-2 rotates, the right shift fork 2-3 can be driven to rotate in the opposite direction by friction; the right end of the right shift fork 2-3 is connected to the second rotating shaft 2-8 The left end of leaf spring 2-4 on the right rear axle is rotatably connected, and the right end of leaf spring 2-4 on the right rear axle is right leaf spring steel sleeve assembly 2-9, and this right leaf spring steel sleeve assembly 2-9 is fixed To the No. 5-2 connecting piece of the right rear horn 5;

In addition, the first rotating shaft 2-6 passes through the left mounting hole opened in the rear axle bracket assembly 1, and the second rotating shaft 2-8 passes through the right mounting hole opened in the rear axle bracket assembly 1, so that the balance bar Assembly 2 is fixed to rear axle bracket assembly 1;

The balance bar assembly provided by the utility model is a balance bar assembly with its own elastic swing arm. Therefore, when the vehicle is turning or the attitude of the vehicle body changes greatly during driving, such as leaning to the left, the left wheel will be depressed, driving the horn and then pulling down the outer end of the leaf spring 2-1 on the left rear axle, And then drive the left shift fork 2-2 to rotate upwards around the first rotating shaft, and when the left shift fork 2-2 rotates upwards, because the right end of the left shift fork is located in the groove passing through the right shift fork, therefore, the left shift fork Drive the right shift fork to rotate in the same direction through friction; and when the right shift fork turns upwards, the upper plate spring 2-4 on the right rear axle is depressed, finally forcing the right side wheel to follow the left side wheel to move in the same direction. Thereby impeling the vehicle body leaning to the left to rebalance, reach the purpose of anti-rolling. The advantage is that it can not only play the role of anti-rolling, but also participate in the structure of the suspension and play the role of part of the swing arm.

(5) Damper

The bottom end of the left damper 6 is fixed to the 4-1 connecting piece of the left rear horn 4, and the top end of the left damper 6 is fixed to the vehicle body; the bottom end of the right damper 7 is fixed to the 5-1 connection of the right rear horn 5 parts, the top end of the right damper 7 is fixed to the vehicle body. Both the left and right dampers can use piston rods. During the driving process, when the wheel tires jump up and down, the dampers are driven to expand and contract at the same time, so as to realize the shock absorption effect. For example, when the left tire jumps up, make the left damper retract; when the left tire jumps down, make the left damper extend.

In the utility model, the leaf spring and the damper constitute a shock absorber, and the shock absorption effect of the shock absorber is improved through the design of the structural form of the leaf spring and the damper.

It can be seen that the disconnected independent suspension rear axle assembly provided by the utility model has the following advantages:

(1) The horizontal leaf spring combines the coil spring and the swing arm in the original independent suspension into one, which not only has the ride comfort of the independent suspension, but also has the advantages of simple structure, small space occupation, few parts and low cost , Occupy small space and high reliability, which is beneficial to the later production and manufacturing.

(2) The performance of the disconnected rear axle is realized through multiple leaf springs and dampers, which can achieve good driving stability and ride comfort while ensuring a simple structure.

(3) Through a special structure of the balance bar assembly, the car has an excellent anti-rolling effect and improves driving safety.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, these improvements and Retouching should also be considered within the protection scope of the present utility model.

Claims (3)

1. A disconnected independent suspension rear axle assembly with multiple leaf springs placed horizontally, it is characterized in that it comprises: rear axle support assembly (1), balance bar assembly (2), rear leaf spring assembly ( 3), left rear horn (4), right rear horn (5), left damper (6) and right damper (7); The left rear horn (4) and the right rear horn (5) are arranged symmetrically, the lower end of the left rear horn (4) is horizontally provided with a 4-1 connector, and the upper end of the left rear horn (4) A 4-2 connecting piece is arranged laterally; a 5-1 connecting piece is arranged horizontally at the lower end of the right rear horn (5), and a 5-2 connecting piece is arranged horizontally at the upper end of the right rear horn (5); The rear leaf spring assembly (3) is arranged between the left rear horn (4) and the right rear horn (5), and the left end of the rear leaf spring assembly (3) is connected to the left The 4-1 connector of the rear horn (4) is fixedly connected, and the right end of the rear leaf spring assembly (3) is fixedly connected with the 5-1 connector of the right rear horn (5); The bottom plate of the rear axle support assembly (1) is fixed on the middle part of the rear leaf spring assembly (3); the upper part of the rear axle support assembly (1) is fixed to the balance bar assembly (2); The left side and the right side of the rear axle support assembly (1) are respectively provided with a first installation beam (1-1) and a second installation beam (1-2); the first installation beam (1- 1) and the second mounting beam (1-2) are used to fix the rear axle support assembly (1) to the vehicle body or chassis; The stabilizer bar assembly (2) has a four-section structure, and from left to right are the leaf spring (2-1) on the left rear axle, the left shift fork (2-2), the right shift fork (2-3) and The leaf spring (2-4) on the right rear axle; wherein, the left end of the leaf spring (2-1) on the left rear axle is the left leaf spring steel sleeve assembly (2-5), and the left leaf spring steel sleeve assembly (2-5) is fixed to the 4-2 connector of the left rear horn (4); the right end of the leaf spring (2-1) on the left rear axle passes through the first rotation shaft (2-6) and The left end of the left shift fork (2-2) is rotatably connected; the left end of the right shift fork (2-3) is a groove (2) adapted to the left end of the left shift fork (2-2). -7); the left end of the left shift fork (2-2) is located in the groove (2-7), when the left shift fork (2-2) rotates, the right shift fork can be driven by friction The shift fork (2-3) rotates in reverse; the right end of the right shift fork (2-3) can be connected to the left end of the leaf spring (2-4) on the right rear axle through the second rotating shaft (2-8) Rotationally connected, the right end of the leaf spring (2-4) on the right rear axle is the right leaf spring steel sleeve assembly (2-9), and the right leaf spring steel sleeve assembly (2-9) is fixed to the right The 5-2 connector of the back horn (5); In addition, the first rotating shaft (2-6) passes through the left mounting hole opened in the rear axle bracket assembly (1), and the second rotating shaft (2-8) passes through the left mounting hole opened in the rear axle bracket assembly (1). the right mounting hole of the axle support assembly (1), thereby fixing the balance bar assembly (2) to the rear axle support assembly (1); The bottom end of the left damper (6) is fixed to the 4-1 connector of the left rear horn (4), and the top end of the left damper (6) is fixed to the vehicle body; the right damper (7) ) is fixed to the 5-1 connector of the right rear horn (5), and the top of the right damper (7) is fixed to the vehicle body. 2. The disconnected independent suspension rear axle assembly with multiple leaf springs placed horizontally according to claim 1, characterized in that, the left damper (6) and the right damper (7) are piston rods . 3. The disconnected independent suspension rear axle assembly with multiple leaf springs placed horizontally according to claim 1, characterized in that, the rear leaf spring assembly (3) is superimposed by at least two rear leaf spring lower plates composed and fastened together with bolts.