CN220082009U - Automobile leaf spring limiting buffer component and automobile leaf spring - Google Patents

Abstract

The utility model discloses an automobile leaf spring limiting buffer component, which comprises an elastomer, wherein a leaf spring cavity is formed in the elastomer and is used for being sleeved on a first leaf spring, a connecting part is arranged in the leaf spring cavity and is used for being connected with the first leaf spring, and a first protruding part is arranged on one side of the elastomer and is used for being abutted with a second leaf spring. The utility model also discloses an automobile leaf spring which comprises the first leaf spring, the second leaf spring and the limiting buffer component of the automobile leaf spring. The utility model has the advantages of simple and reliable structure, capability of providing limiting and buffering functions, capability of eliminating abnormal sound among reeds, and the like.

Description

Automobile leaf spring limiting buffer component and automobile leaf spring

Technical Field

The utility model relates to the field of automobile suspensions, in particular to an automobile leaf spring limiting and buffering component and an automobile leaf spring comprising the same.

Background

The automobile leaf spring is used for connecting the axle and the frame, bearing the supporting force, traction force and braking force of the axle acting on the frame, and relieving the impact in running through the large deformation of the leaf springs in the use process, and the bearing capacity of the leaf spring can be improved through the multi-layer leaf springs or the main and auxiliary leaf springs. Most of the existing automobile leaf springs have no limit buffer structure between the main spring and the auxiliary spring, and part of the existing automobile leaf springs are in the form of single rubber sheets or wear-resistant material spacers attached to the surfaces of the leaf springs. The leaf spring with the infinite buffer structure can generate friction abnormal sound among the reeds after being used for a period of time, and meanwhile, the service life of the reeds can be influenced by rigid contact during the impact of the reeds; the rubber spacer interlayer can eliminate abnormal sound, but has poor wear resistance and cannot provide nonlinear bearing capacity; the wear-resistant material spacer interlayer has better wear resistance, but has no function of relieving impact. Therefore, the existing limit buffer structure has certain defects, and needs to be improved.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing the automobile plate spring limiting and buffering component which has a simple and reliable structure and can provide limiting and buffering functions and eliminate abnormal sound among reeds.

The utility model further provides an automobile leaf spring comprising the automobile leaf spring limiting buffer component.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a spacing buffer unit of car leaf spring, includes the elastomer, the inside reed cavity that is used for the cover to locate on the first reed that is equipped with of elastomer, be equipped with in the reed cavity be used for with the connecting portion that first reed is connected, elastomer one side is equipped with the first convex part that is used for with the butt of second reed.

As a further improvement of the above technical scheme: and a buffer cavity is also arranged in the elastic body.

As a further improvement of the above technical scheme: the buffer cavity is internally provided with a second convex part, and the second convex part coincides with the central line of the first convex part.

As a further improvement of the above technical scheme: the buffer cavity is located above the reed cavity, the second protruding portion is arranged on the upper side of the buffer cavity, and the first protruding portion is arranged on the upper side of the elastic body.

As a further improvement of the above technical scheme: the reed cavity is a rectangular cavity, and the buffer cavity is an arch cavity.

As a further improvement of the above technical scheme: the first convex part and the second convex part are both in ellipsoidal structures.

As a further improvement of the above technical scheme: the elastic body is a rubber body; or, the elastic body is embedded with a metal framework.

As a further improvement of the above technical scheme: the connecting part is a connecting pin, and the first reed is provided with a mounting hole matched with the connecting pin; or, the connecting part comprises a metal pin plate and a metal connecting pin arranged on the metal pin plate, and rubber layers are wrapped on the peripheries of the metal pin plate and the metal connecting pin.

As a further improvement of the above technical scheme: the width of the lower part of the elastic body is larger than that of the upper part of the elastic body and is connected through an arc transition part, and two side surfaces of the upper part of the elastic body are concave cambered surfaces.

An automobile leaf spring comprises a first leaf spring, a second leaf spring and the automobile leaf spring limiting buffer component.

Compared with the prior art, the utility model has the advantages that: when the automobile plate spring limiting buffer component disclosed by the utility model is installed, the elastic body is directly sleeved on the first reed through the reed cavity and is connected with the first reed into a whole through the connecting part in the reed cavity, and the elastic body can isolate each surface of the first reed from the second reed, so that the problem of friction abnormal sound between the first reed and the second reed is solved; when the automobile runs, the second reed is contacted with the first convex part when being subjected to large impact deformation, the elastic body is deformed to play a role in buffering and limiting, and meanwhile, the shearing deformation of the elastic body can provide compensation between the first reed and the second reed due to the stretching dislocation of the reeds, so that the structure is simple and reliable.

The automobile leaf spring disclosed by the utility model comprises the automobile leaf spring limiting buffer component, so that the automobile leaf spring has the same advantages.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of a limiting and cushioning member for an automotive leaf spring according to the present utility model.

Fig. 2 is a schematic front view of a second embodiment of a limiting and cushioning member for an automotive leaf spring according to the present utility model.

Fig. 3 is a schematic perspective view of a second embodiment of a connecting portion according to the present utility model.

Fig. 4 is a schematic structural view of stress and deformation of an embodiment of the limiting and buffering component of the automobile leaf spring.

Fig. 5 is a schematic perspective view of the leaf spring of the automobile of the present utility model.

The reference numerals in the drawings denote: 1. an elastomer; 11. a reed cavity; 12. a connection part; 121. a metal pin plate; 122. a metal connecting pin; 13. a first convex portion; 14. a buffer cavity; 15. a second convex portion; 2. a first reed; 3. a second reed.

Detailed Description

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The utility model is described in further detail below with reference to the drawings and specific examples of the specification.

Example 1

Fig. 1 shows an embodiment of an automobile leaf spring limit buffer component of the utility model, the automobile leaf spring limit buffer component of the embodiment comprises an elastic body 1, a leaf spring cavity 11 used for being sleeved on a first leaf spring 2 is arranged in the elastic body 1, a connecting part 12 used for being connected with the first leaf spring 2 is arranged in the leaf spring cavity 11, and a first convex part 13 used for being abutted with a second leaf spring 3 is arranged on one side of the elastic body 1. Preferably, the first reed 2 is an auxiliary reed, and the second reed 3 is a main reed, namely an automobile leaf spring applied to the main and auxiliary reed structures. Of course, in other embodiments, the automobile leaf spring limit buffer component of the embodiment can also be used for an automobile leaf spring with a multi-layer reed structure; the elastic body 1 can be formed by pure elastic material or formed by bonding an elastic material with a metal framework.

When the automobile leaf spring limiting buffer component is installed, the elastic body 1 is directly sleeved on the first reed 2 through the reed cavity 11 and is connected with the first reed 2 into a whole through the connecting part 12 in the reed cavity 11, and the elastic body 1 can isolate each surface of the first reed 2 from the second reed 3, so that the problem of friction abnormal sound between the first reed 2 and the second reed 3 is solved; when the automobile runs, the second reed 3 is contacted with the first convex part 13 when being subjected to large impact deformation, the elastic body 1 deforms to play a buffering and limiting function, and meanwhile, the shearing deformation of the elastic body 1 can provide compensation between the first reed 2 and the second reed 3 due to the stretching dislocation of the reeds, so that the structure is simple and reliable.

Example two

Fig. 2 to 4 show another embodiment of the limiting and buffering component for a leaf spring of an automobile according to the present utility model, and on the basis of the first embodiment, a buffering cavity 14 is further provided in the elastic body 1.

In the limiting and buffering component of the automobile leaf spring of the embodiment, when the automobile runs, the main reed is subjected to large impact deformation and is contacted with the first convex part 13 after contacting the elastic body 1, and as the load is increased, the buffering cavity 14 is filled to form initial buffering and later effective limiting support, so that the limiting and buffering component has nonlinear bearing capacity, small impact is realized, no influence is caused, the large impact provides reliable limiting effect, and meanwhile, the shearing deformation of the elastic body 1 can provide compensation of stretching dislocation between the main reed and the auxiliary reed.

Further, in the present embodiment, the second protrusion 15 is disposed in the buffer cavity 14, and the second protrusion 15 coincides with the center line of the first protrusion 13. After the main reed is impacted greatly, the first convex part 13 is extruded, so that the buffer cavity 14 is deformed, the second convex part 15 moves downwards along with the buffer cavity 14, contacts the lower side of the buffer cavity 14 and is deformed gradually, and finally the buffer cavity 14 is filled, and the first convex part 13, the second convex part 15 and the buffer cavity 14 are matched, so that the double nonlinear bearing capacity can be formed; the second protrusion 15 coincides with the center line of the first protrusion 13, facilitating efficient load transfer.

As a preferred embodiment, the buffer cavity 14 is located above the reed cavity 11, the second protrusion 15 is located above the buffer cavity 14, and the first protrusion 13 is located above the elastic body 1.

As a preferred embodiment, the reed cavity 11 is a rectangular cavity and the buffer cavity 14 is an arched cavity. The reed cavity 11 adopts a rectangular cavity, so that the reed cavity is convenient to be matched with the first reed 2, and is convenient to install; the buffer cavity 14 adopts an arch cavity, has good bearing capacity, has no influence when the main reed is impacted little, and can provide an effective limiting effect when the main reed is impacted much.

Further, in the present embodiment, the first protrusion 13 and the second protrusion 15 are both in an ellipsoidal structure. The ellipsoidal configuration of the first and second protrusions 13, 15 helps to create a dual non-linear load bearing capability.

The elastic body 1 can be a rubber body, namely, is formed by a rubber material, has low rigidity and is suitable for working conditions with low load; or, the metal framework can be embedded in the elastic body 1, so that the rigidity is higher, and the elastic body is suitable for the working condition with larger load, wherein the elastic body 1 can also be made of rubber.

Further, in this embodiment, the connecting portion 12 is a connecting pin, the first reed 2 is provided with a mounting hole (not shown in the figure) that is matched with the connecting pin, the structure is simple, the installation is convenient, the respective degree of freedom of the elastic body 1 can be effectively limited, and the connecting pin can be made of pure rubber.

Referring specifically to fig. 3, of course, in other embodiments, the connection portion 12 includes a metal pin plate 121 and a metal connection pin 122 disposed on the metal pin plate 121, and rubber layers (not shown in the drawings) are wrapped around the metal pin plate 121 and the metal connection pin 122, that is, the rubber wraps the metal pin plate 121 and the metal connection pin 122, so that the rigidity is high, and the connection portion is suitable for a working condition with a large load.

As a preferred embodiment, the width of the lower part of the elastic body 1 is larger than that of the upper part and is connected through an arc transition part, and two side surfaces of the upper part of the elastic body 1 are concave cambered surfaces. The whole elastomer 1 presents a tower-shaped structure, has strong bearing capacity and contributes to realizing nonlinear bearing capacity.

Example III

Fig. 5 shows an embodiment of the automobile leaf spring of the present utility model, which includes the first leaf 2 and the second leaf 3, and further includes the automobile leaf spring limit buffer member of the first or second embodiment.

The automobile leaf spring of the embodiment comprises the automobile leaf spring limiting buffer component, so that the automobile leaf spring has the advantages.

While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the utility model. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims (10)

1. The utility model provides a spacing buffer unit of car leaf spring which characterized in that: the spring plate comprises an elastic body (1), wherein a spring plate cavity (11) used for being sleeved on a first spring plate (2) is formed in the elastic body (1), a connecting portion (12) used for being connected with the first spring plate (2) is arranged in the spring plate cavity (11), and a first protruding portion (13) used for being abutted to a second spring plate (3) is arranged on one side of the elastic body (1).

2. The automotive leaf spring limit cushioning member of claim 1, wherein: a buffer cavity (14) is also arranged in the elastic body (1).

3. The automotive leaf spring limit cushioning member of claim 2, wherein: a second convex part (15) is arranged in the buffer cavity (14), and the second convex part (15) is overlapped with the central line of the first convex part (13).

4. The automotive leaf spring limit cushioning member of claim 3, wherein: the buffer cavity (14) is located above the reed cavity (11), the second protruding portion (15) is arranged on the upper side of the buffer cavity (14), and the first protruding portion (13) is arranged on the upper side of the elastic body (1).

5. The automotive leaf spring limit cushioning member of claim 4, wherein: the reed cavity (11) is a rectangular cavity, and the buffer cavity (14) is an arch cavity.

6. The automotive leaf spring limit cushioning member of claim 4, wherein: the first convex part (13) and the second convex part (15) are of ellipsoidal structures.

7. The automotive leaf spring limit cushioning member according to any one of claims 1 to 6, characterized in that: the elastic body (1) is a rubber body; or, the elastic body (1) is embedded with a metal framework.

8. The automotive leaf spring limit cushioning member according to any one of claims 1 to 6, characterized in that: the connecting part (12) is a connecting pin, and the first reed (2) is provided with a mounting hole matched with the connecting pin; or, the connecting part (12) comprises a metal pin plate (121) and a metal connecting pin (122) arranged on the metal pin plate (121), and rubber layers are wrapped on the peripheries of the metal pin plate (121) and the metal connecting pin (122).

9. The automotive leaf spring limit cushioning member according to any one of claims 1 to 6, characterized in that: the width of the lower part of the elastic body (1) is larger than that of the upper part and is connected through an arc transition part, and two side surfaces of the upper part of the elastic body (1) are concave cambered surfaces.

10. An automobile leaf spring comprising a first leaf (2) and a second leaf (3), characterized in that: further comprising the automotive leaf spring limit cushioning member of any one of claims 1 to 9.