CN219492911U - Bushing assembly and vehicle - Google Patents

Abstract

The utility model provides a bushing assembly and a vehicle, wherein the vehicle comprises the bushing assembly, the bushing assembly comprises a metal inner pipe, an elastic piece and a metal outer pipe, and the elastic piece is sleeved on the part of the outer periphery side of the metal inner pipe and is connected with the metal inner pipe; the metal outer pipe is sleeved on the outer peripheral side of the elastic piece and is connected with the elastic piece; the outer peripheral surface of the metal outer tube is provided with at least one protruding structure which is arranged along the axial extension of the metal outer tube. The utility model solves the problems that the metal outer pipe in the prior art is too large in pressing resistance and is not easy to separate the bushing component from the frame sleeve due to the pressing error, so that the fault tolerance is low.

Description

Bushing assembly and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a bushing assembly and a vehicle.

Background

In the prior art, can produce vibration problem because the road surface unevenness in the automobile driving process, lead to in-car driver uncomfortable, usually need add the bush subassembly in the junction between the part, common bush subassembly includes the metal outer tube, metal inner tube and rubber ring, the rubber ring cover is established in the periphery side of metal inner tube, the periphery side at the rubber ring is established to the metal outer tube cover, the terminal surface of metal inner tube one end is connected with the limiting plate, the whole interference fit pressure equipment of bush subassembly is to the frame sleeve intraductal, the interference deformation volume of metal outer tube leads to the resistance of impressing big greatly, need additionally to coat grease on the bush subassembly before the pressure equipment, carry out the pressure equipment again, if the pressure equipment mistake also is difficult for deviating from the frame sleeve with the bush subassembly, lead to the fault-tolerant rate lower.

Disclosure of Invention

The utility model mainly aims to provide a bushing assembly and a vehicle, which are used for solving the problem that the bushing assembly is not easy to be separated from a frame sleeve due to overlarge pressing resistance of a metal outer tube and incorrect pressing in the prior art, so that the fault tolerance is low.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a bushing assembly comprising a metal inner pipe, an elastic member, and a metal outer pipe, wherein the elastic member is sleeved on a part of the outer circumferential side of the metal inner pipe and is connected to the metal inner pipe; the metal outer pipe is sleeved on the outer peripheral side of the elastic piece and is connected with the elastic piece; the outer peripheral surface of the metal outer tube is provided with at least one protruding structure which is arranged along the axial extension of the metal outer tube.

Further, the protruding structure is a plurality of, and a plurality of protruding structures interval are around establishing on the outer peripheral face of metal outer tube, and two at least protruding structures in a plurality of protruding structures are located the same annular region of metal outer tube.

Further, the metal outer tube comprises an outer tube body and a limiting block, wherein a protruding structure is arranged on the outer circumferential surface of the outer tube body, the end part of the first end of the outer tube body is turned outwards to form an outer tube flanging, the first end of the protruding structure is connected with the outer tube flanging, and the second end of the protruding structure is arranged in an extending mode along the direction away from the outer tube flanging; the stopper protrusion sets up on the internal face of the second end of outer tube body, and the elastic component has the spacing groove that is used for with stopper complex with stopper relative position department.

Further, the surface of the side, away from the first end, of the outer tube body of the limiting block is flush with the end face of the second end of the outer tube body.

Further, the stopper is a plurality of, and a plurality of stopper intervals are around establishing on the internal face of the second end of outer tube body, and the spacing groove is a plurality of, and a plurality of spacing grooves set up with a plurality of stopper one-to-one.

Further, the elastic piece comprises an elastic inner ring, an elastic outer ring and a plurality of reinforcing ribs, wherein the elastic outer ring is positioned on the outer peripheral side of the elastic inner ring, the first end of the elastic inner ring is positioned on the inner side of the elastic outer ring, and the second end of the elastic inner ring extends out of the elastic outer ring; the first ends of the reinforcing ribs are connected with the first end of the elastic inner ring, and the second ends of the reinforcing ribs are connected with the inner wall surface of the elastic outer ring.

Further, the metal inner pipe comprises a first pipe section, a transition pipe section and a second pipe section, wherein the first end of the first pipe section is turned outwards to form an annular flanging; the first end of the transition pipe section is connected with the second end of the first pipe section; the first end of the second pipe section is connected with the second end of the transition pipe section, and the second pipe section is used for extending into the elastic inner ring; the pipe diameter of the first pipe section is larger than that of the second pipe section, the transition pipe section is a conical pipe section, the first end of the transition pipe section is a large end side, the second end of the transition pipe section is a small end side, and the outer peripheral surface of the transition pipe section is abutted with the end surface of the first end of each reinforcing rib.

Further, the end part of the elastic outer ring facing one end of the annular flanging is outwards turned to form an elastic flanging, and a plurality of vibration reduction protrusions are convexly arranged on the surface of the elastic flanging facing one side of the annular flanging.

Further, the metal inner tube, the elastic piece and the metal outer tube are concentrically arranged.

According to another aspect of the present utility model there is provided a vehicle comprising a bushing assembly and a frame bushing, the bushing assembly being in press fit with the frame bushing, the bushing assembly being as described above.

By applying the technical scheme of the utility model, at least one protruding structure is arranged on the outer peripheral surface of the metal outer tube of the bushing assembly, so that the pressing resistance is reduced when the bushing assembly is pressed into the frame sleeve. When the whole interference fit of bush subassembly is pressed into frame sleeve pipe, protruding structure and the crimping of frame sleeve pipe's inner peripheral face on the outer peripheral face of metal outer tube, the interference deformation volume of metal outer tube is less, need not to additionally coat grease on the bush subassembly before the pressure equipment, improves the success rate of bush subassembly press-fitting once, and fault tolerance is higher.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 illustrates a schematic structural view of a bushing assembly according to an alternative embodiment of the utility model;

FIG. 2 shows a schematic cross-sectional structural view of the view D-D of FIG. 1;

FIG. 3 shows a schematic perspective view of the metal outer tube of the bushing assembly of FIG. 1;

FIG. 4 shows a schematic perspective view of the resilient member of the bushing assembly of FIG. 1;

FIG. 5 shows a schematic perspective view of another view of the elastic member of FIG. 4;

FIG. 6 shows a schematic structural view of the elastic member of FIG. 5 from a top view;

FIG. 7 shows a schematic structural view of the elastic member of FIG. 5 from a front view perspective;

FIG. 8 shows a schematic cross-sectional structural view of the E-E view of FIG. 7;

fig. 9 shows a schematic structural view of the metal inner tube of the bushing assembly of fig. 1.

Wherein the above figures include the following reference numerals:

1. a bushing assembly; 10. a metal inner tube; 11. a first pipe section; 111. annular flanging; 12. a transition pipe section; 13. a second pipe section;

20. an elastic member; 21. an elastic inner ring; 22. an elastic outer ring; 221. elastic flanging; 2211. vibration damping protrusions; 23. reinforcing ribs; 231. a limit groove;

30. a metal outer tube; 31. a bump structure; 32. an outer tube body; 321. flanging the outer tube; 33. and a limiting block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a bushing assembly and a vehicle, and aims to solve the problem that the bushing assembly is difficult to separate from a frame sleeve due to overlarge pressing resistance and incorrect pressing of a metal outer tube in the prior art, so that the fault tolerance is low.

The vehicle includes a bushing assembly 1 and a frame bushing, the bushing assembly 1 being in press fit with the frame bushing, the bushing assembly 1 being the bushing assembly 1 described above and below.

As shown in fig. 1 to 9, the bushing assembly includes a metal inner pipe 10, an elastic member 20, and a metal outer pipe 30, wherein the elastic member 20 is sleeved on a part of the outer circumferential side of the metal inner pipe 10 and is connected with the metal inner pipe 10; the metal outer tube 30 is sleeved on the outer peripheral side of the elastic member 20 and is connected with the elastic member 20; wherein, the outer peripheral surface of the metal outer tube 30 is provided with at least one protruding structure 31 extending along the axial direction of the metal outer tube 30 to reduce the pressing resistance when the bushing assembly is pressed into the frame sleeve.

At least one protrusion structure 31 is provided on the outer circumferential surface of the metal outer tube 30 of the bushing assembly 1 to reduce the press-in resistance when the bushing assembly 1 is press-fitted into the frame bushing. When the whole bushing assembly 1 is in interference fit press-in to the frame sleeve, the protruding structure 31 on the outer peripheral surface of the metal outer tube 30 is in compression joint with the inner peripheral surface of the frame sleeve, the interference deformation of the metal outer tube 30 is small, grease does not need to be additionally coated on the bushing assembly 1 before press-in, the success rate of one-time press-in of the bushing assembly 1 is improved, and the fault tolerance is high.

As shown in fig. 3, the projection structure 31 is provided extending in the axial direction of the metal outer tube 30. In this way, the projection structure 31 can serve as a guide and reduce the resistance to pressing in when the bushing assembly is integrally press-fitted into the frame bushing.

As shown in fig. 3, the plurality of protruding structures 31 are plural, the plurality of protruding structures 31 are wound around the outer peripheral surface of the metal outer tube 30 at intervals, each protruding structure 31 extends along the axial direction of the metal outer tube 30, and at least two protruding structures 31 of the plurality of protruding structures 31 are located in the same annular region of the metal outer tube 30. In this way, the plurality of circumferentially arranged raised structures 31 ensure that the metal outer tube 30 is uniformly stressed when pressed into the frame sleeve.

Preferably, there are 8 protruding structures 31 in total.

As shown in fig. 3, the metal outer tube 30 includes an outer tube body 32 and a stopper 33, wherein a protruding structure 31 is provided on the outer circumferential surface of the outer tube body 32, and an end portion of a first end of the outer tube body 32 is turned outwards to form an outer tube flanging 321, the first end of the protruding structure 31 is connected with the outer tube flanging 321, and a second end of the protruding structure 31 is arranged in a direction away from the outer tube flanging 321 in an extending manner; the stopper 33 is convexly disposed on an inner wall surface of the second end of the outer tube body 32, and a stopper groove 231 for cooperating with the stopper 33 is provided at a position of the elastic member 20 opposite to the stopper 33. Thus, the stopper 33 cooperates with the stopper groove 231 to ensure the stability of the connection of the elastic member 20 and the metal outer tube 30.

It should be noted that, in this application, the second end of the protruding structure 31 is a slope inclined toward the outer tube body 32 to serve as a guide.

Preferably, the number of the limiting blocks 33 is 4, the limiting blocks are uniformly arranged on the inner wall surface of the outer tube body 32, and the number of the limiting grooves 231 of the elastic piece 20 is correspondingly 4.

As shown in fig. 2 and 3, the surface of the stopper 33 on the side away from the first end of the outer tube body 32 is flush with the end surface of the second end of the outer tube body 32.

As shown in fig. 2, the surface of the stopper 33 facing the first end side of the outer tube body 32 is disposed at a first angle a with respect to the axial direction of the outer tube body 32, wherein 50 ° -a ∈ 90 °. Therefore, the force bearing surfaces of the limiting block 33 and the elastic piece 20 are arranged at an included angle with the axial direction of the outer pipe body 32, so that the displacement generated between the metal outer pipe 30 and the metal inner pipe 10 when the automobile runs under bad road conditions can be reduced.

Preferably, the first included angle a=60°.

As shown in fig. 2, the groove wall surface of the limit groove 231 is adapted to the outer circumferential surface of the limit block 33. In this way, the reliability of the fitting of the stopper groove 231 and the stopper 33 is ensured.

As shown in fig. 2 to 4, the plurality of limiting blocks 33 are provided, the plurality of limiting blocks 33 are wound on the inner wall surface of the second end of the outer tube body 32 at intervals, the plurality of limiting grooves 231 are provided, and the plurality of limiting grooves 231 are provided in one-to-one correspondence with the plurality of limiting blocks 33.

In the present application, the metal outer tube 30 is integrally formed by a casting process.

As shown in fig. 2 and 8, the elastic member 20 includes an elastic inner ring 21, an elastic outer ring 22, and a plurality of reinforcing ribs 23, wherein the elastic outer ring 22 is located at an outer peripheral side of the elastic inner ring 21, and a first end of the elastic inner ring 21 is located at an inner side of the elastic outer ring 22, and a second end of the elastic inner ring 21 is provided to extend out of the elastic outer ring 22; the first ends of the plurality of reinforcing ribs 23 are connected to the first end of the elastic inner ring 21, and the second ends of the plurality of reinforcing ribs 23 are connected to the inner wall surface of the elastic outer ring 22. In this way, the gaps between the plurality of reinforcing ribs 23 can ensure good elasticity of the elastic member 20.

As shown in fig. 8, the plurality of reinforcing ribs 23 have an umbrella-like structure. In this way, the reinforcing ribs 23 play a supporting reinforcing role for the elastic member 20, and effectively promote the rigidity of the reinforcing ribs 23.

Preferably, the reinforcing ribs 23 are provided in four and uniformly arranged on the outer wall surface of the elastic inner ring 21.

As shown in FIG. 8, the geometric center line of each rib 23 has a second angle B with the geometric center line of the elastic member 20, wherein B is 10 DEG.ltoreq.B.ltoreq.90 deg.

Preferably, the first included angle b=30°.

As shown in fig. 2, a limiting groove 231 is concavely formed on the end surface of the second end of the reinforcing rib 23, and the limiting groove 231 is used for being matched with the limiting block 33 on the metal outer tube 30.

Preferably, the elastic member 20 is rubber, and is integrally formed by a vulcanization process.

As shown in fig. 2 and 9, the metal inner pipe 10 comprises a first pipe section 11, a transition pipe section 12 and a second pipe section 13, wherein a first end of the first pipe section 11 is turned outwards to form an annular flange 111; a first end of the transition pipe section 12 is connected to a second end of the first pipe section 11; the first end of the second pipe section 13 is connected with the second end of the transition pipe section 12, and the second pipe section 13 is used for extending into the elastic inner ring 21; wherein, the pipe diameter of the first pipe section 11 is larger than that of the second pipe section 13, the transition pipe section 12 is a conical pipe section, the first end of the transition pipe section 12 is a big end side, the second end of the transition pipe section 12 is a small end side, and the outer peripheral surface of the transition pipe section 12 is abutted with the end surface of the first end of each reinforcing rib 23.

It should be noted that, in the present application, the transition pipe section 12 of the metal inner pipe 10, the end surface of the first end of the reinforcing rib 23, the limit groove 231 of the second end of the reinforcing rib 23, and the limit block 33 of the metal outer pipe 30 are compressed at an angle and are matched with each other, so that the bushing assembly 1 can reduce the transmission of excitation energy generated by the whole vehicle to the bad road section, and promote the stability and durability of the whole vehicle operation.

In the present application, the outer circumferential surface of the transition pipe section 12 is disposed at a third angle C with respect to the axial direction of the metal inner pipe 10, wherein 90 ° C is equal to or less than 130 °.

Preferably, the outer peripheral surface of the transition pipe section 12 with the third included angle c=120° is disposed in parallel with the surface of the stopper 33 facing the first end side of the outer pipe body 32.

As shown in fig. 9, the first pipe section 11 is of a hollow structure; and/or the second pipe section 13 and the transition pipe section 12 are of solid construction.

As shown in fig. 2, the end of the elastic outer ring 22 toward one end of the annular flange 111 is turned outward to form an elastic flange 221, and a plurality of vibration-damping protrusions 2211 are provided protruding on the surface of the elastic flange 221 toward the side of the annular flange 111. In this way, in the running process of the automobile on a bad road section, larger displacement is generated between the metal inner pipe 10 and the metal outer pipe 30, and the vibration reduction protrusion 2211 abuts against the annular flanging 111 to play a role in vibration reduction, so that friction abnormal sound generated by direct impact of the metal inner pipe 10 and the metal outer pipe 30 is reduced.

In this application, the elastic flange 221 is covered on the outer tube flange 321.

It should be noted that, in the present application, the metal inner tube 10 is integrally formed by a casting process, the annular flange 111 integrally formed with the metal inner tube 10 replaces a limiting plate separately connected with the metal inner tube 10 in the prior art, so that the limiting plate structure is omitted, the types and the number of parts are reduced, the production process is reduced, and the input cost is reduced.

As shown in fig. 1 and 2, the metal inner pipe 10, the elastic member 20, and the metal outer pipe 30 are concentrically arranged.

From the above description, it can be seen that the above embodiments in the present application achieve the following technical effects: at least one protrusion structure 31 is provided on the outer circumferential surface of the metal outer tube 30 of the bushing assembly 1 to reduce the press-in resistance when the bushing assembly 1 is press-fitted into the frame bushing. When the whole bushing assembly 1 is in interference fit press-in to the frame sleeve, the protruding structure 31 on the outer peripheral surface of the metal outer tube 30 is in compression joint with the inner peripheral surface of the frame sleeve, the interference deformation of the metal outer tube 30 is small, grease does not need to be additionally coated on the bushing assembly 1 before press-in, the success rate of one-time press-in of the bushing assembly 1 is improved, and the fault tolerance is high.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A bushing assembly, comprising:

a metal inner tube (10);

an elastic member (20), wherein the elastic member (20) is sleeved on the part of the outer periphery side of the metal inner pipe (10) and is connected with the metal inner pipe (10);

a metal outer tube (30), wherein the metal outer tube (30) is sleeved on the outer periphery side of the elastic piece (20) and is connected with the elastic piece (20);

wherein, the outer peripheral surface of the metal outer tube (30) is provided with at least one protruding structure (31) which is arranged along the axial extension of the metal outer tube (30).

2. The bushing assembly of claim 1 wherein,

the number of the protruding structures (31) is multiple, the protruding structures (31) are wound on the outer peripheral surface of the metal outer tube (30) at intervals, and at least two protruding structures (31) in the protruding structures (31) are located in the same annular area of the metal outer tube (30).

3. The bushing assembly according to claim 1, wherein the metal outer tube (30) comprises:

the outer tube body (32), be provided with on the outer peripheral face of outer tube body (32) protruding structure (31), just the tip of the first end of outer tube body (32) turns over outwards and forms outer tube turn-ups (321), protruding structure's (31) first end with outer tube turn-ups (321) are connected, protruding structure's (31) second end is along keeping away from outer tube turn-ups (321) direction extension setting;

the limiting block (33), the limiting block (33) is arranged on the inner wall surface of the second end of the outer tube body (32) in a protruding mode, and a limiting groove (231) used for being matched with the limiting block (33) is formed in the position, opposite to the limiting block (33), of the elastic piece (20).

4. A bushing assembly according to claim 3, characterized in that the surface of the stopper (33) on the side of the first end remote from the outer tube body (32) is flush with the end face of the second end of the outer tube body (32).

5. A bushing assembly according to claim 3, wherein the number of the limiting blocks (33) is plural, the plurality of limiting blocks (33) are wound on the inner wall surface of the second end of the outer tube body (32) at intervals, the number of the limiting grooves (231) is plural, and the plurality of limiting grooves (231) are arranged in one-to-one correspondence with the plurality of limiting blocks (33).

6. Bushing assembly according to claim 1, wherein the elastic member (20) comprises:

an elastic inner ring (21);

an elastic outer ring (22), wherein the elastic outer ring (22) is positioned on the outer peripheral side of the elastic inner ring (21), a first end of the elastic inner ring (21) is positioned on the inner side of the elastic outer ring (22), and a second end of the elastic inner ring (21) extends out of the elastic outer ring (22);

the elastic inner ring comprises a plurality of reinforcing ribs (23), wherein first ends of the reinforcing ribs (23) are connected with the first end of the elastic inner ring (21), and second ends of the reinforcing ribs (23) are connected with the inner wall surface of the elastic outer ring (22).

7. Bushing assembly according to claim 6, wherein the metal inner tube (10) comprises:

the first pipe section (11), the first end of the first pipe section (11) is turned outwards to form an annular flanging (111);

a transition pipe section (12), a first end of the transition pipe section (12) being connected to a second end of the first pipe section (11);

a second tube section (13), the first end of the second tube section (13) being connected to the second end of the transition tube section (12), and the second tube section (13) being adapted to extend into the elastic inner ring (21);

the pipe diameter of the first pipe section (11) is larger than that of the second pipe section (13), the transition pipe section (12) is a conical pipe section, the first end of the transition pipe section (12) is a large end side, the second end of the transition pipe section (12) is a small end side, and the outer peripheral surface of the transition pipe section (12) is abutted with the end surface of the first end of each reinforcing rib (23).

8. The bushing assembly according to claim 7, characterized in that the end of the elastic outer ring (22) facing one end of the annular flange (111) is turned outwards to form an elastic flange (221), and that the surface of the elastic flange (221) facing one side of the annular flange (111) is convexly provided with a plurality of vibration-damping protrusions (2211).

9. Bushing assembly according to any of claims 1-8, wherein the metal inner tube (10), the elastic member (20), the metal outer tube (30) are arranged concentrically.

10. A vehicle, characterized in that the vehicle comprises a bushing assembly (1) and a frame bushing, the bushing assembly (1) being in press fit with the frame bushing, the bushing assembly (1) being a bushing assembly according to any one of claims 1 to 9.