CN220416070U - Suspension bush and vehicle - Google Patents

Abstract

The utility model provides a suspension bushing and a vehicle, which belong to the technical field of vehicles and comprise an inner core, a rubber main body and an outer pipe which are sequentially nested from inside to outside; the rubber main body comprises an inner ring and an outer ring, the inner ring and the outer ring are connected into a whole through an X-direction limiting connecting part extending along the X direction, and the outer pipe, the X-direction limiting connecting part and the inner core form an X-direction first torsion-resistant limiting structure; wherein, the X-direction limiting connecting part is positioned at the middle position of the Y-direction of the rubber main body; x-direction outer limit protrusions protruding towards the inner ring direction are respectively arranged on the inner sides of the two ends of the outer ring Y in the X direction, and an X-direction torsion-resistant gap is formed between each X-direction outer limit protrusion and the inner ring; the outer tube, the X-direction limiting bulge and the inner core form an X-direction second torsion-resistant limiting structure; the X-direction first torsion-resistant limiting structure and the X-direction second torsion-resistant limiting structure form an X-direction second torsion-resistant limiting structure of the suspension bushing. The suspension bushing provided by the utility model improves the torsion-resistant limit and vibration isolation performance of the suspension.

Description

Suspension bush and vehicle

Technical Field

The utility model belongs to the technical field of vehicles, and particularly relates to a suspension bushing and a vehicle with the suspension bushing.

Background

The pure electric vehicle is driven by a motor, the motor has large torque output from low rotation speed, the motor has high rotation speed, light weight and high excitation frequency, and the suspension has to bear large torque change for torsion resistance. However, the existing rubber suspension has the high-frequency hardening phenomenon, high dynamic stiffness in a high frequency range, poor suspension vibration isolation, torsion resistance limit and insufficient vibration isolation performance, and the comfort of drivers and passengers is affected.

Disclosure of Invention

The embodiment of the utility model provides a suspension bushing and a vehicle, which aim to solve the problems of poor torsion resistance limit and vibration isolation performance of the existing suspension.

In order to achieve the above object, according to a first aspect of the present utility model, a technical scheme is as follows: providing a suspension bushing, comprising an inner core, a rubber main body and an outer tube which are nested in sequence from inside to outside;

the rubber main body comprises an inner ring and an outer ring, the inner ring and the outer ring are connected into a whole through an X-direction limiting connecting part extending along the X direction, and the outer tube, the X-direction limiting connecting part and the inner core form an X-direction first torsion-resistant limiting structure; wherein the X-direction limiting connection part is positioned at the middle position of the Y-direction of the rubber main body;

x-direction outer limiting protrusions protruding towards the inner ring are respectively arranged on the inner sides of the two ends of the outer ring in the Y direction, and an X-direction torsion-resistant gap is formed between each X-direction outer limiting protrusion and each inner ring; the outer tube, the X-direction outer limiting bulge and the inner core form an X-direction second torsion-resistant limiting structure;

the X-direction first torsion-resistant limiting structure and the X-direction second torsion-resistant limiting structure form an X-direction second torsion-resistant limiting structure of the suspension bushing.

With reference to the first aspect, in one implementation manner, at least three X-outward limiting protrusions are disposed at two ends of the outer ring in the Y direction, and the X-outward limiting protrusions at two ends are disposed in a staggered manner.

In combination with the first aspect, in one implementation manner, X-direction inner limiting protrusions protruding towards the outer ring direction are respectively arranged on the outer sides of the two ends of the inner ring Y along the X-direction, and the X-direction torsion-resistant gap is formed between the X-direction inner limiting protrusions and the X-direction outer limiting protrusions; the outer tube, the X-direction inner limiting protrusion, the X-direction outer limiting protrusion and the inner core form the X-direction second torsion-resistant limiting structure.

With reference to the first aspect, in one implementation manner, the X-direction outward limiting protrusion is connected to the X-direction limiting connection portion along a Y-direction.

In combination with the first aspect, in one implementation manner, the inner sides of the two ends of the outer ring in the Y direction are respectively provided with a Z-direction outer limiting protrusion protruding towards the inner ring direction along the Z direction, and a Z-direction torsion-resistant gap is arranged between the Z-direction outer limiting protrusion and the inner ring; the outer tube, the Z-direction outer limiting protrusion and the inner core form a Z-direction first torsion-resistant limiting structure.

In combination with the first aspect, in one implementation manner, the outer sides of the two ends of the inner ring Y are respectively provided with a Z-direction limiting groove along the Z direction, the Z-direction limiting grooves are in meshed fit with the Z-direction outer limiting protrusions, and the Z-direction torsion-resistant gap is formed between the Z-direction limiting grooves and the Z-direction outer limiting protrusions; the outer tube, the Z-direction outer limiting protrusion, the Z-direction limiting groove and the inner core form the Z-direction first torsion-resistant limiting structure.

With reference to the first aspect, in one implementation manner, the inner ring is further provided with a Z-direction inner limiting protrusion protruding in a Z-direction towards the outer ring, the Z-direction inner limiting protrusion is located between the Z-direction limiting grooves at two ends, and the outer tube, the Z-direction inner limiting protrusion and the inner core form a Z-direction second torsion-resistant limiting structure;

the Z-direction first torsion-resistant limiting structure and the Z-direction second torsion-resistant limiting structure form a Z-direction second torsion-resistant limiting structure of the suspension bushing.

With reference to the first aspect, in one implementation manner, an annular spacing groove is provided between the Z-direction inner limit protrusion and the Z-direction limit groove.

In combination with the first aspect, in one implementation manner, annular limiting grooves are respectively formed in inner sides of two ends of the inner ring Y, a mass ring is arranged in each annular limiting groove, the mass ring is in interference fit with the inner core, and the inner core, the mass ring and the rubber main body form a Y-directional torsion-resistant limiting structure of the suspension bushing.

Compared with the prior art, the suspension bushing provided by the utility model has the beneficial effects that: under the working conditions of vehicle acceleration, deceleration, braking, low-frequency vibration and the like, the peak torque of the driving motor is large, the driving motor is quickly converted in a certain rotating speed interval, the torque can be reversed from positive to negative in a very short time, the impact and load force of the X-direction motion of the power assembly part compresses or stretches the X-direction first torsion-resistant limit structure, and the X-direction second torsion-resistant limit structure is compressed or stretched; the X-direction second anti-torsion limiting structure compensates and controls the deformation of the X-direction first anti-torsion limiting structure, and the anti-torsion limiting is carried out through repeated cyclic movement; compared with the single-stage torsion-resistant limit of the existing motor suspension bushing, the displacement of the power assembly can be well controlled through repeated circulation torsion-resistant limit of the X-direction secondary torsion-resistant limit structure, meanwhile, the problems of low vibration isolation performance caused by high rigidity and high rigidity rising of a high frequency band in the torque direction are avoided, the torsion-resistant limit capacity is improved, and the torsion-resistant limit and vibration isolation performance of the suspension are improved as a whole; meanwhile, the problem of high-frequency impact of the rubber main body is also solved, and the fatigue durability of the rubber main body is improved.

In a second aspect, an embodiment of the present utility model further provides a vehicle including the suspension liner.

According to the vehicle provided by the embodiment of the utility model, due to the adoption of the suspension bushing of the X-direction secondary torsion-resistant limiting structure, the torsion-resistant limiting and vibration isolation performances of the vehicle are improved and improved, and the comfort of drivers and passengers is improved.

Drawings

FIG. 1 is a schematic view of an exploded construction of a suspension liner according to an embodiment of the present utility model;

fig. 2 is a schematic perspective view of a suspension bushing according to an embodiment of the present utility model;

FIG. 3 is a schematic front view (along the Y-direction) of a suspension liner according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 6 is a schematic diagram of a front view (along Y-direction) of a rubber body according to an embodiment of the present utility model;

FIG. 7 is a cross-sectional view taken along line C-C of FIG. 6;

FIG. 8 is a cross-sectional view taken along line D-D of FIG. 6;

FIG. 9 is a schematic perspective view of a rubber body according to an embodiment of the present utility model;

FIG. 10 is a schematic diagram of a suspension according to an embodiment of the present utility model (Y-direction front);

FIG. 11 is a schematic view of a suspension according to an embodiment of the present utility model;

FIG. 12 is a schematic view of a front view (along Y-direction) of a suspension according to an embodiment of the present utility model;

FIG. 13 is a cross-sectional view taken along line E-E of FIG. 12;

FIG. 14 is a cross-sectional view taken along line F-F of FIG. 12;

FIG. 15 is a schematic view of a compressive or tensile displacement structure of a rubber body according to an embodiment of the present utility model;

FIG. 16 is a schematic diagram of a wall thickness labeling structure of a mass ring according to an embodiment of the present utility model;

FIG. 17 is a schematic diagram of a wall thickness labeling structure of a rubber body according to an embodiment of the present utility model;

reference numerals illustrate:

1. an outer tube; 2. a mass ring; 3. a rubber body; 31. an outer ring; 311. x-direction limiting protrusions; 312. z-direction outer limit bulge; 32. an inner ring; 321. x is inward limited and raised; 322. z-direction limiting grooves; 323. an annular limit groove; 324. z-direction inner limit bulge; 33. x-direction limit connection part; 34. an X-direction torsion resistance gap; 35. a Z-direction torsional gap; 36. annular spacing grooves; 4. an inner core; 5. and (3) a framework.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. 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.

In the description of the present utility model, terms indicating an azimuth or a positional relationship such as "X direction, Y direction, Z direction" and the like are used in correspondence with the front-rear direction, the left-right direction, and the up-down direction of the vehicle, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

Referring to fig. 1 to 9 together, a suspension liner according to the present utility model will now be described. The suspension bushing comprises an inner core 4, a rubber main body 3 and an outer tube 1 which are nested in sequence from inside to outside;

the rubber main body 3 comprises an inner ring 32 and an outer ring 31, the inner ring 32 and the outer ring 31 are connected into a whole through an X-direction limiting connecting part 33 extending along the X direction, and the outer tube 1, the X-direction limiting connecting part 33 and the inner core 4 form an X-direction first torsion-resistant limiting structure; wherein, the X-direction limit connection part 33 is positioned at the middle position of the Y-direction of the rubber main body 3;

x-direction outer limiting protrusions 311 protruding towards the inner ring 32 are respectively arranged on the inner sides of the two Y-direction ends of the outer ring 31 along the X-direction, and an X-direction torsion-resistant gap 34 is formed between the X-direction outer limiting protrusions 311 and the inner ring 32; the outer tube 1, the X-direction outer limit bulge 311 and the inner core 4 form an X-direction second torsion-resistant limit structure;

the X-direction first torsion-resistant limiting structure and the X-direction second torsion-resistant limiting structure form an X-direction second torsion-resistant limiting structure of the suspension bushing.

Compared with the prior art, the suspension bushing provided by the utility model has the beneficial effects that: under the working conditions of vehicle acceleration, deceleration, braking, low-frequency vibration and the like, the peak torque of the driving motor is large, the driving motor is quickly converted in a certain rotating speed interval, the torque can be reversed from positive to negative in a very short time, the impact and load force of the X-direction motion of the power assembly part compresses or stretches the X-direction first torsion-resistant limit structure, and the X-direction second torsion-resistant limit structure is compressed or stretched; the X-direction second anti-torsion limiting structure compensates and controls the deformation of the X-direction first anti-torsion limiting structure, and the anti-torsion limiting is carried out through repeated cyclic movement; compared with the single-stage torsion-resistant limit of the existing motor suspension bushing, the displacement of the power assembly can be well controlled through repeated circulation torsion-resistant limit of the X-direction secondary torsion-resistant limit structure, meanwhile, the problems of low vibration isolation performance caused by high rigidity and high rigidity rising of a high frequency band in the torque direction are avoided, the torsion-resistant limit capacity is improved, and the torsion-resistant limit and vibration isolation performance of the suspension are improved as a whole; meanwhile, the problem of high-frequency impact of the rubber main body 3 is also solved, and the fatigue durability of the rubber main body 3 is improved.

In this embodiment, the first torsional rigidity of the first torsional limiter structure in the X direction is defined as K11; the second torsional limit structural stiffness is defined as K12; k11 > K12, i.e., the first torque limiting capability > the second torque limiting capability.

In addition, generally, the X-direction first anti-torsion limiting structure and the X-direction second anti-torsion limiting structure form an H-shaped structure (shown by a thick line in 14) in the X direction, and the H-shaped anti-torsion limiting structure can promote working conditions such as acceleration, deceleration, braking, low-frequency vibration and the like, and has anti-torsion limiting and vibration isolation capabilities of the motor suspension bushing.

The assembly process of the suspension bushing provided in this embodiment is as follows: the mass ring 2 is assembled on the inner core 4 in an interference way (or cast into a whole) to form an inner core 4 assembly; the rubber main body 3 is vulcanized between the inner core 4 component and the outer tube 1 to form a suspension bushing; the suspension bushing is pressed onto the framework 5 in an interference manner to form the motor suspension.

Wherein, the materials of each component are as follows: the framework 5 is made of aluminum alloy or nylon; the inner core 4 can be made of aluminum alloy; the outer tube 1 is made of aluminum alloy or nylon; the rubber body 3 is natural rubber, and the mass ring 2 is aluminum alloy.

Regarding the X-direction limiting connection portion 33 extending in the X-direction, in order to improve the torsion resistance of the rubber body 3, the shape of the X-direction limiting connection portion 33 is a fan-shaped structure, and a notch, that is, a Z-direction torsion-resistant gap 35 is formed in the Z-direction of the rubber body 3.

The X-direction limiting connection portion 33 extends in the X-direction and the reverse direction, or the X-direction limiting connection portion 33 is divided into two portions, which is an axisymmetric pattern with the center line of the inner core 4 as a symmetry axis.

In some embodiments, as shown in fig. 5 and 8, at least three X-outward limiting protrusions 311 are disposed at two Y-directional ends of the outer ring 31, and the X-outward limiting protrusions 311 at the two ends are disposed in a staggered manner, so as to form an asymmetric structure. For example, at one end of the outer ring 31, an X-outward limiting protrusion 311 is extended along the X-direction, and two X-outward limiting protrusions 311 are extended along the X-direction, wherein the X-outward limiting protrusion 311 extended along the X-direction is opposite to the two X-outward limiting protrusions 311 extended along the X-direction, and is in a meshed state or a dislocated state; meanwhile, two X-out limiting protrusions 311 are arranged at the other end of the outer ring 31 in a forward extending mode along X, and one X-out limiting protrusion 311 is arranged in a reverse extending mode along X, wherein the X-out limiting protrusions 311 extending in the reverse direction along X are opposite to the two X-out limiting protrusions 311 extending in the forward direction along X, and are in a meshed state or are in a dislocation state.

The asymmetric structure forms a mutual compensation structure in the repeated circulation anti-torsion limiting process, is beneficial to controlling the displacement of the power assembly, avoids the problems of high rigidity and high rigidity rising speed of a high-frequency band in the torque direction, causes the problem of vibration isolation performance reduction, and is also beneficial to improving the anti-torsion limiting capacity.

When two X-outside limit protrusions 311 are provided extending in the X reverse direction, the two X-outside limit protrusions 311 extend in the radial direction of the outer ring 31.

In some embodiments, as shown in fig. 2, 3, 5, 6, 8 and 9, the outer sides of the two ends of the inner ring 32Y are respectively provided with an X-direction inner limiting protrusion 321 protruding toward the outer ring 31 along the X-direction, and an X-direction torsion-resistant gap 34 is formed between the X-direction inner limiting protrusion 321 and the X-direction outer limiting protrusion 311; the outer tube 1, the X-direction inner limit protrusion 321, the X-direction outer limit protrusion 311 and the inner core 4 constitute an X-direction second torsion-resistant limit structure. The cooperation of the X-direction inner limiting protrusion 321 and the X-direction outer limiting protrusion 311 can improve the durability of the X-direction secondary torsion-resistant limiting structure in the repeated circulation torsion-resistant limiting process.

The X-inward limiting protrusion 321 is an annular protrusion disposed at two ends of the inner ring 32, and the X-inward limiting protrusion 321 is not directly connected with the X-directional limiting connection portion 33, so that an annular spacing groove 36 is formed therebetween, and is consistent with the annular spacing groove 36 between the Z-directional inward limiting protrusion 324 and the Z-directional limiting groove 322, so as to structurally provide a deformation space for torsion resistance, compression, stretching and the like of the rubber main body 3.

Specifically, the Z-direction limiting groove 322 is provided on the X-direction inner limiting projection 321.

In some embodiments, as shown in fig. 2, 5, 8 and 9, the X-direction outward limit projection 311 is connected to the X-direction limit connection 33 along the Y-direction. The X-direction outer limit projection 311 is connected with the X-direction limit connection portion 33, so that the anti-torsion deformation capability of the rubber main body 3 can be improved.

In some embodiments, as shown in fig. 2, 3, 4, 6, 7 and 9, the inner sides of the two ends of the outer ring 31Y are respectively provided with a Z-direction outer limiting protrusion 312 protruding toward the inner ring 32 along the Z-direction, and a Z-direction torsion-resistant gap 35 is formed between the Z-direction outer limiting protrusion 312 and the inner ring 32; the outer tube 1, the Z-direction outer limit protrusion 312 and the inner core 4 form a Z-direction first torsion-resistant limit structure. Wherein, two Z-directed outward limit protrusions 312 along the Z-direction are symmetrically arranged.

And under the working conditions of vehicle acceleration, deceleration, braking and the like, the impact and load force of the Z-direction movement of the power assembly part compress or stretch the Z-direction first torsion-resistant limiting structure, and the repeated cyclic movement carries out torsion-resistant limiting, so that the torsion-resistant limiting capability and vibration isolation performance of the suspension bushing are improved.

In some embodiments, as shown in fig. 2, 3, 4, 6, 7 and 9, the outer sides of the two ends of the inner ring 32Y are respectively provided with a Z-directional limiting groove 322 along the Z-direction, the Z-directional limiting grooves 322 are in snap fit with the Z-directional outer limiting protrusions 312, and a Z-directional torsion-resistant gap 35 is formed between the Z-directional limiting grooves 322 and the Z-directional outer limiting protrusions 312; the outer tube 1, the Z-direction outer limit protrusion 312, the Z-direction limit groove 322 and the inner core 4 form the Z-direction first torsion-resistant limit structure. The Z-direction outward limiting protrusion 312 and the Z-direction limiting groove 322 are beneficial to improving the torsion limiting capacity of the suspension bushing.

In some embodiments, as shown in fig. 4 and 7, the inner ring 32 is further provided with a Z-inward limiting protrusion 324 protruding along the direction of the Z-outward ring 31, the Z-inward limiting protrusion 324 is located between the Z-directional limiting grooves 322 at two ends, and the outer tube 1, the Z-inward limiting protrusion 324 and the inner core 4 form a Z-directional second torsion-resistant limiting structure; the Z-direction first torsion-resistant limiting structure and the Z-direction second torsion-resistant limiting structure form a Z-direction second torsion-resistant limiting structure of the suspension bushing. The Z-direction torsion gap 35 penetrates in the Y-direction.

In this embodiment, the first torsional limit structure stiffness in the Z direction is defined as K21; the rigidity of the Z-direction second torsion limiting structure is defined as K22; and K21 < K22, i.e., the first torque limiting capability < the second torque limiting capability.

In addition, generally, the Z-direction first anti-torsion limiting structure and the Z-direction second anti-torsion limiting structure form an H-shaped structure (shown by thick lines in fig. 13) in the X direction, and the H-shaped anti-torsion limiting structure can improve the working conditions of acceleration, deceleration, braking, low-frequency vibration and the like, and the anti-torsion limiting and vibration isolation capability of the motor suspension bushing.

To this end, the suspension bush that this embodiment provided, including two I shape second grade antitorque limit structure, and X is to antitorque limit structure (as shown by the thick line in figure 14) of "worker" style of calligraphy and the antitorque limit structure (as shown by the thick line in figure 13) of "worker" style of calligraphy are perpendicular state distribution, control power assembly displacement that can be good, avoid moment of torsion direction high frequency band rigidity big and rigidity rising fast simultaneously, lead to vibration isolation performance decline problem, also promote antitorque limit ability, improve rubber main part 3 high frequency striking, promote rubber main part 3 fatigue durability.

The working principle of the Z-direction secondary torsion-resistant limiting structure is as follows: and under the working conditions of vehicle acceleration, deceleration, braking or low-frequency vibration and the like, the impact and load force of the part of the Z-directional movement of the power assembly compress or stretch the Z-directional first torsion-resistant limiting structure, and the part of the Z-directional second torsion-resistant limiting structure is compressed or stretched, so that the deformation of the Z-directional second torsion-resistant limiting structure is controlled by the Z-directional first torsion-resistant limiting structure in a compensation mode, and the repeated cyclic movement is performed to limit the torsion.

In some embodiments, an annular spacing groove 36 (as shown in fig. 4 and 7) is provided between the Z-direction inner limit projection 324 and the Z-direction limit groove 322, so as to provide a deformation space for torsion resistance, compression, stretching, and the like of the rubber body 3.

In some embodiments, as shown in fig. 4, 5, 7 and 8, annular limiting grooves 323 are respectively formed on inner sides of two ends of the inner ring 32Y, a mass ring 2 is disposed in the annular limiting grooves 323, the mass ring 2 is in interference fit on the inner core 4, and the inner core 4, the mass ring 2 and the rubber body 3 form a Y-directional torsion-resistant limiting structure of the suspension bushing.

The Y-direction torsion-resistant limiting structure also forms an I-shaped structure (shown by thick lines in fig. 15), and compared with the existing torsion-resistant limiting structure (low axial rigidity and limited lifting) of a common motor suspension bushing, the Y-direction torsion-resistant limiting structure can better control the displacement of the power assembly, and is specifically as follows: 1) When the vehicle runs in a bad road condition, macroscopic unevenness of the road surface (low-frequency vibration) generates road surface excitation force F, the road surface excitation force F is transmitted to the suspension through the axle head, the suspension and the auxiliary frame, the rubber main body 3 is compressed or stretched oppositely (along the Y direction) through the mass ring 2, the axial (whole vehicle Y direction) rubber main body 3 is compressed or stretched for displacement S (shown in figure 15) as follows, and high rigidity K=F/S is obtained; meanwhile, the mode (comprising a driving bridge) of the suspension system is changed to realize rapid attenuation excitation energy transfer; the performance quality of NVH of the whole vehicle is improved; 2) Or according to bad road conditions, the (low-frequency vibration) frequency of the road surface can be calculated according to the formula of the action frequency of the vibration absorber: omega= v (k/m), changing the wall thickness L1 of the mass ring 2 (as shown in fig. 16) or the thickness L2 of the rubber main body 3 (as shown in fig. 17), changing the mass m of the mass ring 2 and the rubber main body 3, realizing adjustable frequency, and further realizing rapid attenuation excitation energy transfer.

The suspension bushing provided by the embodiment forms three I-shaped anti-torsion limiting structures, and the three structures are not in the same plane and are in a mutually perpendicular relationship.

The working principle of the suspension bushing based on the three I-shaped torsion-resistant limiting structures is as follows: under the working conditions of vehicle acceleration, deceleration, braking, low-frequency vibration and the like, the peak torque of the driving motor is large, the driving motor is rapidly converted in a certain rotating speed interval, the torque can be reversed from positive to negative in a very short time, the impact and load force of the X-direction motion of the power assembly part compresses or stretches the X-direction first torsion-resistant limit structure, and the X-direction second torsion-resistant limit structure is compressed or stretched; the X-direction second anti-torsion limiting structure compensates and controls the deformation of the X-direction first anti-torsion limiting structure, and the anti-torsion limiting is carried out through repeated cyclic movement; the impact and load force of the Y-direction movement compresses or stretches the Y-direction torsion-resistant limiting structure in the I shape, and the mass rings 2 at the two ends of the Y-direction oppositely compress or stretch the rubber main body 3 to obtain high rigidity K for torsion-resistant limiting; and the impact and load force of part of the Z-direction movement compress or stretch the Z-direction first anti-torsion limiting structure, and the part of the impact and load force compress or stretch the Z-direction second anti-torsion limiting structure, so that the deformation of the Z-direction second anti-torsion limiting structure is controlled by the Z-direction first anti-torsion limiting structure in a compensation way, and the Z-direction second anti-torsion limiting structure is subjected to anti-torsion limiting through repeated cyclic movement.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.

Based on the same inventive concept, the embodiment of the application also provides a vehicle, which comprises the suspension bushing.

According to the vehicle provided by the embodiment of the utility model, due to the adoption of the suspension bushing of the X-direction secondary torsion-resistant limiting structure, the torsion-resistant limiting and vibration isolation performances of the vehicle are improved and improved, and the comfort of drivers and passengers is improved.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. The suspension bushing is characterized by comprising an inner core (4), a rubber main body (3) and an outer tube (1) which are nested in sequence from inside to outside;

the rubber main body (3) comprises an inner ring (32) and an outer ring (31), the inner ring (32) and the outer ring (31) are connected into a whole through an X-direction limiting connection part (33) extending along the X direction, and the outer tube (1), the X-direction limiting connection part (33) and the inner core (4) form an X-direction first torsion-resistant limiting structure; wherein the X-direction limiting connection part (33) is positioned at the middle position of the Y-direction of the rubber main body (3);

x-direction outer limiting protrusions (311) protruding towards the inner ring (32) are respectively arranged on the inner sides of the two Y-direction ends of the outer ring (31) along the X-direction, and an X-direction torsion-resistant gap (34) is formed between the X-direction outer limiting protrusions (311) and the inner ring (32); the outer tube (1), the X-direction outer limit bulge (311) and the inner core (4) form an X-direction second torsion-resistant limit structure;

the X-direction first torsion-resistant limiting structure and the X-direction second torsion-resistant limiting structure form an X-direction second torsion-resistant limiting structure of the suspension bushing.

2. The suspension bushing as claimed in claim 1, wherein at least three X-direction outer limit protrusions (311) are provided at both Y-direction ends of the outer ring (31), and the X-direction outer limit protrusions (311) at both ends are arranged in a staggered manner.

3. The suspension bushing as claimed in claim 1, wherein X-direction inward limit protrusions (321) protruding toward the outer ring (31) are respectively provided on outer sides of both Y-direction ends of the inner ring (32) in the X-direction, and the X-direction torsion-resistant gap (34) is formed between the X-direction inward limit protrusions (321) and the X-direction outward limit protrusions (311); the outer tube (1), the X-direction inner limiting protrusion (321), the X-direction outer limiting protrusion (311) and the inner core (4) form the X-direction second torsion-resistant limiting structure.

4. A suspension bushing according to claim 1, wherein the X-direction limit projection (311) is connected to the X-direction limit connection (33) in the Y-direction.

5. The suspension bushing as claimed in claim 1, wherein inner sides of both Y-direction ends of the outer ring (31) are respectively provided with a Z-direction outer limit projection (312) projecting toward the inner ring (32) in the Z-direction, and a Z-direction torsion-resistant gap (35) is provided between the Z-direction outer limit projection (312) and the inner ring (32); the outer tube (1), the Z-direction outer limiting protrusion (312) and the inner core (4) form a Z-direction first torsion-resistant limiting structure.

6. The suspension bushing as claimed in claim 5, wherein the outer sides of the two Y-directional ends of the inner ring (32) are respectively provided with a Z-directional limit groove (322) along the Z-direction, the Z-directional limit grooves (322) are engaged with the Z-directional external limit protrusions (312), and the Z-directional torsion-resistant gap (35) is formed between the Z-directional limit grooves (322) and the Z-directional external limit protrusions (312); the outer tube (1), the Z-direction outer limiting protrusion (312), the Z-direction limiting groove (322) and the inner core (4) form the Z-direction first torsion-resistant limiting structure.

7. The suspension liner according to claim 6, wherein the inner ring (32) is further provided with a Z-direction inner limit protrusion (324) protruding in the Z-direction outer ring (31), the Z-direction inner limit protrusion (324) being located between the Z-direction limit grooves (322) at both ends, the outer tube (1), the Z-direction inner limit protrusion (324) and the inner core (4) constituting a Z-direction second torsion-resistant limit structure;

the Z-direction first torsion-resistant limiting structure and the Z-direction second torsion-resistant limiting structure form a Z-direction second torsion-resistant limiting structure of the suspension bushing.

8. The suspension liner as claimed in claim 7, wherein an annular spacer groove (36) is provided between the Z-directed inward stop projection (324) and the Z-directed stop recess (322).

9. The suspension bushing as claimed in claim 1, wherein inner sides of both Y-direction ends of the inner ring (32) are respectively provided with an annular limiting groove (323), a mass ring (2) is arranged in the annular limiting groove (323), the mass ring (2) is in interference fit with the inner core (4), and the inner core (4), the mass ring (2) and the rubber body (3) form a Y-direction anti-torsion limiting structure of the suspension bushing.

10. A vehicle comprising a suspension liner according to any one of claims 1-9.