CN215673344U

CN215673344U - Semi-floating decoupling film, hydraulic suspension and automobile

Info

Publication number: CN215673344U
Application number: CN202120956458.XU
Authority: CN
Inventors: 李先洲; 马国冰; 郭杰亮; 刘建国; 张卫国
Original assignee: GAC Motor Co Ltd
Current assignee: GAC Motor Co Ltd
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2022-01-28
Anticipated expiration: 2031-05-06

Abstract

The utility model relates to the technical field of automobile parts, in particular to a semi-floating decoupling membrane, a hydraulic suspension and an automobile. Wherein the decoupling film is the lamellar structure, and the decoupling film includes up end and lower terminal surface, the center of up end, lower terminal surface all is equipped with central authorities and protrudingly, the edge of up end, lower terminal surface all is equipped with annular bulge, annular bulge is higher than or equal to the bellied height in central authorities. The hydraulic suspension comprises a supporting arm, a bracket, a main spring body, a main spring support, a leather cup, an upper runner plate, a lower runner plate and a decoupling film, wherein the main spring body and the main spring support are pressed in the bracket in an interference manner, and the supporting arm is connected with the main spring body; the main spring body is pressed with the main spring support, the upper runner plate, the lower runner plate and the leather cup are sequentially attached, the main spring body, the lower runner plate and the leather cup are wrapped between the main spring body and the main spring support, and the leather cup is tightly attached to the main spring support; the decoupling film is arranged between the upper runner plate and the lower runner plate and is respectively abutted against the upper runner plate and the lower runner plate.

Description

Semi-floating decoupling film, hydraulic suspension and automobile

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a semi-floating decoupling membrane, a hydraulic suspension and an automobile.

Background

In the process of debugging the performance of the automobile, the improvement of the comfort is an important performance index, and the comfort of the automobile can be improved by reducing the noise and slowing down the vibration. The engine is elastically supported by the hydraulic mount, and the hydraulic mount can fix and support the engine assembly to bear the reciprocating inertia force and moment generated by the rotation and translation mass of the engine in the engine assembly and bear all dynamic forces acting on the engine assembly in the driving process and isolate the vibration of a frame or a vehicle body caused by the excitation of the engine or the transmission of the vibration of the vehicle body caused by the uneven road surface and the impact of wheels on the road surface to the engine assembly.

During the debugging process of vibration noise and vehicle smoothness, a decoupling type hydraulic suspension device is required to be used, during specific work, when the hydraulic suspension is excited by low frequency and large amplitude, liquid in an upper liquid chamber and a lower liquid chamber flows back and forth between the upper liquid chamber and the lower liquid chamber through a flow channel, and the vibration is attenuated by utilizing the resistance of the liquid flowing in the flow channel. When the hydraulic suspension is excited by high frequency and small amplitude, the liquid in the flow channel has too large inertia to flow, and at the moment, the liquid in the upper liquid chamber and the lower liquid chamber directly flap the decoupling film through the damping holes on the upper flow channel plate and the lower flow channel plate, so that the decoupling film and the liquid vibrate at high speed together, the high-frequency dynamic stiffness of the hydraulic suspension is reduced, and the vibration is attenuated. The design of the existing decoupling film can inevitably flap and impact the runner cover plate up and down when the hydraulic system works, and abnormal sound of 'clicking' can be sent when the runner cover plate is impacted.

Chinese patent publication No. CN204961677U discloses a hydraulic mount flow channel assembly and a hydraulic mount in 2016, 01, 13, wherein an inner end surface of a decoupling film is provided with an indent, and a plurality of protrusions are formed on at least one side end surface, so that the protrusions are used to reduce the vibration noise of the decoupling film. However, due to the adoption of the illustrated convex structure, partial convex abrasion is easily caused by repeated beating or impact, so that the whole decoupling film is unbalanced, and abnormal sound is more easily generated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a semi-floating decoupling membrane, a hydraulic suspension and an automobile, wherein the decoupling membrane adopts two forms of a central bulge and an annular bulge, and a hydraulic system can keep the decoupling membrane floating up and down during working and simultaneously avoid the unbalance phenomenon caused by abrasion.

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

the utility model provides a semi-floating decoupling zero membrane, the decoupling zero membrane is lamellar structure, and the decoupling zero membrane includes up end and lower terminal surface, the center of up end, lower terminal surface all is equipped with central authorities arch, the edge of up end, lower terminal surface all is equipped with annular bulge, annular bulge is higher than or equal to the bellied height in central authorities. Annular protrusion, the central authorities arch of decoupling zero membrane are compressed tightly when the assembly, and hydraulic suspension receives the excitation of vibration, and central authorities arch can float earlier and with upper and lower flow path board striking, because the bellied striking area of contact of central authorities is great, and the wearing and tearing that the striking caused are comparatively even, keep the decoupling zero membrane to float from top to bottom, also avoid simultaneously because the unbalanced phenomenon of wearing and tearing production.

As one preferable scheme, the decoupling film is oblong, and the upper end face and the lower end face are symmetrical to each other. The existing decoupling membrane is usually an oblong or round sheet body, the upper surface and the lower surface of the existing decoupling membrane have the same structure, and the existing decoupling membrane is stressed uniformly.

Preferably, the height of the annular projection is equal to the height of the central projection. The annular bulge and the central bulge are pressed by the upper and lower runner plates.

Preferably, the distance between the highest point of the central bulge on the upper end surface and the highest point of the central bulge on the lower end surface is 5-5.5 mm.

A hydraulic suspension comprises a supporting arm, a bracket, a main spring body, a main spring support, a leather cup, an upper runner plate, a lower runner plate and a decoupling film, wherein the main spring body and the main spring support are pressed in the bracket in an interference fit manner, and the supporting arm is connected with the main spring body; the main spring body is pressed with the main spring support, the upper runner plate, the lower runner plate and the leather cup are sequentially attached to each other, the three parts are wrapped between the main spring body and the main spring support, and the leather cup is attached to the main spring support; the decoupling film is arranged between the upper runner plate and the lower runner plate and is respectively abutted against the upper runner plate and the lower runner plate.

Furthermore, the surfaces of the upper runner plate and the lower runner plate, which are abutted to the decoupling film, are of a grid structure. Liquid flows through the grid structure, impacts the decoupling membrane to enable the decoupling membrane to float up and down, and vibration reduction is carried out.

Furthermore, the upper runner plate and the lower runner plate are combined to form a cavity, and the decoupling film is arranged in the cavity.

Furthermore, the main spring body is made of rubber, an inner sleeve formed by integral vulcanization is arranged on the main spring body, and the inner sleeve is sleeved with the supporting arm. The support arm is tightly sleeved in the inner sleeve to transmit vibration.

Furthermore, the novel leather cup for the pipeline further comprises a buckle plate, wherein the buckle plate is located on one side, away from the lower runner plate, of the leather cup and is in supporting fit with the main spring. The leather cup is tightly pushed by the buckle plate, so that the leather cup and the lower runner plate form a closed liquid cavity.

The automobile comprises the hydraulic suspension, the supporting arm is connected with an automobile engine, and the support is connected with an automobile body. The support is detachably connected with the vehicle body, and the support arm is detachably connected with the engine.

Compared with the prior art, the utility model has the beneficial effects that: the utility model discloses a semi-floating decoupling membrane, which adopts two forms of a central bulge and an annular bulge, a hydraulic system can keep the decoupling membrane floating up and down during working, the impact contact area of the central bulge is larger, the abrasion caused by impact is more uniform, the decoupling membrane is kept floating up and down, and the unbalance phenomenon caused by abrasion is avoided. In addition, the decoupling film is applied to a hydraulic suspension, and then the hydraulic suspension is installed in an automobile, so that the noise is reduced, the vibration is reduced, and the comfort of the automobile is improved.

Drawings

FIG. 1 is a schematic structural diagram of a decoupling membrane according to an embodiment of the utility model.

FIG. 2 is a half cross-sectional view of a decoupling membrane of an embodiment of the utility model.

Fig. 3 is an internal structural view of the hydraulic mount according to the embodiment of the present invention.

Fig. 4 is an exploded view of an assembly of a hydraulic mount according to an embodiment of the present invention.

The decoupling film comprises a decoupling film 1, an upper end face 11, a lower end face 12, a central bulge 13, an annular bulge 14, a supporting arm 2, a support 3, a main spring body 4, a main spring support 5, a leather cup 6, an upper runner plate 7, a lower runner plate 8, an inner sleeve 9 and a buckle plate 10.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The technical scheme of the utility model is further described in detail by the following specific embodiments in combination with the attached drawings:

examples

First, as shown in fig. 1-2, the present embodiment provides a semi-floating decoupling membrane, where the decoupling membrane 1 is an oblong sheet structure, and the decoupling membrane 1 includes an upper end surface 11 and a lower end surface 12 that are symmetrical to each other. The centers of the upper end face 11 and the lower end face 12 are both provided with a central bulge 13, meanwhile, the edges of the upper end face 11 and the lower end face 12 are both provided with an annular bulge 14, and the annular bulge 14 is slightly higher than the height of the central bulge 13.

In this embodiment, the distance between the highest point of the central protrusion 13 of the upper end surface 11 and the highest point of the central protrusion 13 of the lower end surface 12 is set to be 5.2 mm.

In the embodiment, the decoupling film 1 is installed in a hydraulic suspension, and the hydraulic suspension comprises a bracket arm 2, a bracket 3, a main spring body 4, a main spring support 5, a leather cup 6, an upper runner plate 7, a lower runner plate 8 and the decoupling film 1.

As shown in fig. 3-4, the main spring body 4 and the main spring support 5 are press-fitted in the bracket 3 in an interference manner, the main spring body 4 is made of rubber, the main spring body 4 is provided with an inner sleeve 9 integrally formed by vulcanization, and the supporting arm 2 is sleeved in the inner sleeve 9.

Specifically, main spring body 4 and main spring support 5 pressfitting whole form hollow structure, and upward runner plate 7, lower runner plate 8, leather cup 6 laminate in proper order, and the three wraps up between main spring body 4 and main spring support 5, and leather cup 6 supports 5 bottoms and pastes tightly with main spring. In addition, the buckle plate 10 is further included, and the buckle plate 10 is located on one side, away from the lower runner plate 8, of the leather cup 6 and attached to the main spring support 5. The pinch plate 10 tightly pushes the leather cup 6, so that the leather cup 6 and the lower runner plate 8 form a closed liquid cavity

Specifically, the decoupling film 1 is disposed between the upper flow path plate 7 and the lower flow path plate 8, and the decoupling film 1 is respectively abutted against the upper flow path plate 7 and the lower flow path plate 8. Specifically, a cavity is formed after the upper flow passage plate 7 and the lower flow passage plate 8 are combined, the decoupling film 1 is arranged in the cavity, and one surface of the upper flow passage plate 7, the lower flow passage plate 8, which is abutted to the decoupling film 1, is of a grid structure.

Main spring body 4 main spring supports 5 interference pressure equipment between support 3, main spring supports 5 bottoms by the tight top of leather cup 6, consequently main spring body 4 supports 5 inside whole inclosed sap cavities that form with main spring, upward flow field plate 7, lower flow field plate 8 separates the sap cavity for last sap cavity and lower sap cavity, lower flow field plate 8 hugs closely at the middle part that main spring supported 5, main spring supports 5 bottoms and pastes tightly with leather cup 6, be equipped with the turn-ups in this department of pasting tightly on the leather cup 6, leather cup 6 and buckle 10 are through the rubber vulcanization as an organic whole, the laminating compresses tightly on main spring supports 5 when the assembly. According to the principle of hydraulic suspension, in the embodiment, the lower runner plate 8 is provided with a liquid inlet and an annular runner, the upper runner plate 7 is provided with a liquid outlet, the annular runner communicates the liquid inlet with the liquid outlet, the annular runner communicates the upper liquid cavity with the lower liquid cavity, and the decoupling film 1 is arranged between the upper runner plate 7 and the lower runner plate 8. Annular protrusion 14, central authorities ' arch 13 of decoupling zero membrane 1 are compressed tightly when the assembly, and hydraulic suspension receives the excitation of vibration, and central authorities ' arch 13 can float at first and with upper and lower flow plate 8 striking, because the striking area of contact of central authorities ' arch 13 is great, and the wearing and tearing that the striking caused are comparatively even, keep decoupling zero membrane 1 to float from top to bottom, also avoid simultaneously because the unbalance phenomenon of wearing and tearing production.

The hydraulic suspension is arranged in a middle automobile, the supporting arm 2 of the hydraulic suspension is connected with an automobile engine, the support 3 is connected with an automobile body, noise is reduced, vibration is slowed down, and the comfort of the automobile is improved.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A semi-floating decoupling film is characterized in that: decoupling zero membrane (1) is lamellar structure, and decoupling zero membrane (1) includes up end (11) and lower terminal surface (12), the center of up end (11), lower terminal surface (12) all is equipped with central authorities arch (13), the edge of up end (11), lower terminal surface (12) all is equipped with annular arch (14), annular arch (14) are higher than or equal to the height of central authorities arch (13).

2. The semi-floating decoupling membrane of claim 1 wherein: the decoupling film (1) is in an oblong shape, and the upper end face (11) and the lower end face (12) are symmetrical to each other.

3. The semi-floating decoupling membrane of claim 2 wherein: the annular projection (14) is equal to the height of the central projection (13).

4. The semi-floating decoupling membrane of claim 3 wherein: the distance between the highest point of the central bulge (13) of the upper end surface (11) and the highest point of the central bulge (13) of the lower end surface (12) is 5-5.5 mm.

5. A hydraulic mount characterized by: the decoupling membrane decoupling device comprises a supporting arm (2), a support (3), a main spring body (4), a main spring support (5), a leather cup (6), an upper runner plate (7), a lower runner plate (8) and the decoupling membrane (1) of claim 3, wherein the main spring body (4) and the main spring support (5) are pressed in the support (3) in an interference fit mode, and the supporting arm (2) is connected with the main spring body (4);

the main spring body (4) is pressed with the main spring support (5), the upper runner plate (7), the lower runner plate (8) and the leather cup (6) are sequentially attached to each other, the three parts are wrapped between the main spring body (4) and the main spring support (5), and the leather cup (6) is tightly attached to the main spring support (5);

the decoupling film (1) is arranged between the upper flow channel plate (7) and the lower flow channel plate (8), and the decoupling film (1) is respectively abutted against the upper flow channel plate (7) and the lower flow channel plate (8).

6. The hydraulic mount of claim 5 wherein: one side of the upper runner plate (7) and the lower runner plate (8) which are abutted to the decoupling film (1) is of a grid structure.

7. The hydraulic mount of claim 6 wherein: the upper runner plate (7) and the lower runner plate (8) are combined to form a cavity, and the decoupling film (1) is arranged in the cavity.

8. The hydraulic mount of claim 5 wherein: the main spring body (4) is made of rubber, an inner sleeve (9) formed by integrally vulcanizing is arranged on the main spring body (4), and the inner sleeve (9) is sleeved with the supporting arm (2).

9. The hydraulic mount of claim 5 wherein: the novel spring clip is characterized by further comprising a clip plate (10), wherein the clip plate (10) is located on one side, away from the lower runner plate (8), of the leather cup (6) and attached to the main spring support (5).

10. An automobile, characterized in that: the hydraulic mount comprises the hydraulic mount according to any one of claims 5 to 9, wherein the bracket arm (2) is connected with an automobile engine, and the bracket (3) is connected with an automobile body.