CN220220400U

CN220220400U - Novel gearbox suspension

Info

Publication number: CN220220400U
Application number: CN202321966518.1U
Authority: CN
Inventors: 刘娟; 黄年兵; 郝三强; 庞松
Original assignee: Jianxin Zhaos Technology Co Ltd
Current assignee: Jianxin Zhaos Technology Co Ltd
Priority date: 2023-07-24
Filing date: 2023-07-24
Publication date: 2023-12-22
Anticipated expiration: 2033-07-24

Abstract

The application discloses a novel gearbox suspension, belongs to the technical field of automobile parts, and comprises a cantilever, an outer support and a rubber piece, and is characterized in that the outer support is formed into a mounting cavity, one end of the cantilever extends into the mounting cavity, the cantilever in the mounting cavity is basically of a rectangular frame structure, and a plurality of downward protruding support legs are arranged on the bottom surface of one end of the cantilever; the rubber piece is located the installation cavity and is connected with installation cavity internal wall surface, and the rubber piece wraps up the one end of cantilever. Low hardness, high static rigidity and low dynamic rigidity are realized, NVH performance is improved, and the comfort of the whole vehicle is improved.

Description

Novel gearbox suspension

Technical Field

The application relates to the technical field of automobile parts, in particular to a novel gearbox suspension.

Background

The use of automobiles is becoming increasingly popular for important vehicles. Meanwhile, the requirements on the riding comfort of the automobile and the noise and reliability of the whole automobile are increasingly improved. The gearbox is one of the core components of the automobile. For proper operation of the gearbox, the impact of road irregularities on the gearbox is reduced, and a gearbox suspension is typically employed to mount the gearbox.

Typically the gearbox suspension is mounted on the left side of the engine and the engine suspension is mounted on the right side of the engine. The cantilever on the gearbox support is connected with the gearbox, and vibration of the gearbox is transmitted to the gearbox to be suspended in the running process of the automobile, so that shaking of the gearbox is reduced;

the existing gearbox suspension comprises an arch piece, a cantilever and a base, wherein the cantilever is positioned between the arch piece and the base and is connected with the gearbox, and the cantilever comprises a cantilever rod and rubber which is sleeved on the cantilever rod; in the driving process, the shaking force of the gearbox is born by the rubber, so that the effects of shock absorption and noise reduction are realized.

Related prior art such as chinese patent application "a gearbox suspension", application number: CN202020759219.0, including the main spring subassembly of installation cantilever, the main spring subassembly includes outer support and rubber spare, and the rubber spare sets up in the outer support and the bottom is installed in the outer support interior bottom surface, and the interval of rubber spare left side, right side to the outer support internal wall surface is different, and cantilever one end is installed in the rubber spare. The vibration isolation performance is optimized, and the NVH performance of the automobile during acceleration is improved.

In the gearbox rotating structure in the prior art, the static rigidity in the X and Z directions is provided by a pure rubber structure of a main spring, and the high rigidity can be realized only by lifting hardness, but the dynamic rigidity is correspondingly lifted, so that the NVH performance of a vehicle is affected.

Disclosure of Invention

The technical problem to be solved by the application is to provide a novel gearbox suspension, low hardness, high static stiffness and low dynamic stiffness are realized, NVH performance is improved, and the comfort of the whole vehicle is improved.

The technical scheme that this application adopted is: the novel gearbox suspension comprises a cantilever, an outer support and a rubber piece, and is characterized in that the outer support is formed into a mounting cavity, one end of the cantilever extends into the mounting cavity, the cantilever in the mounting cavity is basically of a rectangular frame structure, and a plurality of downward protruding support legs are arranged on the bottom surface of one end of the cantilever; the rubber piece is located the installation cavity and is connected with installation cavity internal wall surface, and the rubber piece wraps up the one end of cantilever.

Compared with the prior art, the cantilever bottom surface that this application's advantage lies in being located the installation cavity is provided with a plurality of bellied stabilizer blade downwards, and the design of suspension stabilizer blade can arouse the shape of wrapping up at the outer rubber spare of cantilever equally, can satisfy high static rigidity under the condition of using low rubber hardness, can obtain low dynamic rigidity simultaneously, has improved the NVH performance of car. The static rigidity is not required to be improved by simply relying on rubber hardness, the structure of the automobile can achieve low hardness to meet high static rigidity, dynamic rigidity can be correspondingly reduced, NVH performance is improved, and comfort of the whole automobile is improved.

In some embodiments of the present application, a space exists between the rubber member and the upper top surface of the installation cavity, and a space exists between the rubber member and the left and right side surfaces of the installation cavity; the rubber part completely fills the space between the bottom surface of the installation cavity and the supporting leg, and the rubber part is connected with the inner bottom surface of the installation cavity.

In this application, for convenience of description, the positions of fig. 1 in the drawings of the specification are used to define the up, down, left and right of the suspension of the gearbox, and do not represent the up, down, left and right of the actual installation and use of the gearbox.

In some embodiments of the present application, one end of the cantilever extending into the installation cavity is a frame section, the other end of the cantilever located outside the installation cavity is a connecting section, and one end of the frame section away from the connecting section extends outside the installation cavity to form an outer fastening section.

In some embodiments of the present application, the frame section is a rectangular frame structure, and the frame section includes a base plate and a plurality of reinforcing bars disposed above the base plate section.

In some embodiments of the present application, two supporting legs are symmetrically arranged below the bottom plate, the supporting legs are of a strip-shaped structure bent towards opposite sides, and the longitudinal sections of the supporting legs are of an inverted triangle structure.

In some embodiments of the present application, the rubber piece wrapped around the foot constitutes two rubber strips for the compliant foot, with a spacing between the two rubber strips.

In some embodiments of the present application, the rubber member located below the connecting section constitutes a hexagonal block structure.

In some embodiments of the present application, the longitudinal section of the outer fastening section is L-shaped, one end of the outer fastening section is connected with the bottom plate, and the other end of the outer fastening section is vertically disposed on the outer side of the outer bracket.

In some embodiments of the present application, the outer support includes an upper support and a lower support, the upper support and the lower support are riveted by rivets, and the upper support and the lower support are staggered a distance from front to back.

In some embodiments of the present application, the outer fastening section is partially located outside the upper bracket, and a reinforcing piece is disposed on the upper bracket near one of the outer fastening sections.

The structural design of the gearbox suspension device enables all parts of the gearbox suspension to have good performance, and meets HPV performance requirements of a vehicle.

The above embodiments may be arbitrarily combined on the basis of common knowledge in the art.

Drawings

The present application will be described in further detail below in conjunction with the drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn for the purpose of illustrating the preferred embodiments only and thus should not be taken as limiting the scope of the present application. Moreover, unless specifically indicated otherwise, the drawings are merely schematic representations, not necessarily to scale, of the compositions or constructions of the described objects and may include exaggerated representations.

FIG. 1 is a schematic structural diagram of the present application;

FIG. 2 is a top view of the present application;

FIG. 3 is a cross-sectional view taken along section A-A of FIG. 2;

FIG. 4 is a schematic view of the structure of the interior of the present application;

FIG. 5 is a schematic illustration of a cantilever structure of the present application;

fig. 6 is a schematic structural diagram of a cantilever in the present application.

Wherein, the reference numerals specifically explain as follows: 1. a rubber member; 11. a rubber strip; 2. an outer bracket; 21. an upper bracket; 21a, reinforcing sheets; 22. a lower bracket; 3. a cantilever; 31. a frame section; 31a, a bottom plate; 31b, reinforcing strips; 32. a connection section; 33. an outer buckle section; 4. a support leg; 5. and (5) installing the cavity.

Detailed Description

The present application will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

A novel gearbox suspension, an embodiment of which is shown in figures 1 to 4: the cantilever 3 is basically in a rectangular frame structure, and a plurality of downward protruding support legs 4 are arranged on the bottom surface of one end of the cantilever 3; the design of the suspension leg 4 also causes the shape of the rubber member 1 wrapped outside the cantilever 3, can meet high static stiffness under the condition of low rubber hardness, can obtain low dynamic stiffness, and improves NVH performance of the automobile. The rubber part 1 is positioned in the installation cavity and connected with the inner wall surface of the installation cavity, and one end of the cantilever 3 is wrapped by the rubber part 1. The application does not need to simply rely on rubber hardness to promote quiet rigidity, and the structure of this application can realize that low hardness satisfies high quiet rigidity, and corresponding dynamic rigidity that can reduce improves NVH performance, improves whole car travelling comfort.

In the second embodiment, as shown in fig. 3 to 6, a space exists between the rubber member 1 and the upper top surface of the installation cavity 5, and a space exists between the rubber member 1 and the left and right side surfaces of the installation cavity 5; the rubber member 1 completely fills the space between the bottom surface of the installation cavity 5 and the support leg 4, and the rubber member 1 is connected with the inner bottom surface of the installation cavity 5.

One end of the cantilever 3 extending into the installation cavity is a frame section 31, the other end of the cantilever 3 positioned outside the installation cavity is a connecting section 32, and one end of the frame section 31 away from the connecting section 32 extends outside the installation cavity to form an outer buckling section 33. The frame section 31 has a rectangular frame structure, and the frame section 31 includes a bottom plate 31a and a plurality of reinforcing bars 31b disposed above the bottom plate 31 a. Two supporting legs 4 are symmetrically arranged below the bottom plate 31a, the supporting legs 4 are of strip-shaped structures bent towards opposite sides, and the longitudinal sections of the supporting legs 4 are of inverted triangle structures.

The rubber part 1 wrapped outside the support leg 4 forms two rubber strips 11 for the adaptation of the support leg 4, the two rubber strips 11 being spaced apart. The rubber 1 below the connecting section 32 forms a hexagonal block structure. The longitudinal section of the outer buckling section 33 is L-shaped, one end of the outer buckling section 33 is connected with the bottom plate 31a, and the other end of the outer buckling piece is vertically arranged on the outer side of the outer bracket 2.

The outer support 2 comprises an upper support 21 and a lower support 22, wherein the upper support 21 and the lower support 22 are riveted through rivets, and the upper support 21 and the lower support 22 are staggered in a front-back mode by a certain distance. The outer fastening section 33 is partially located outside the upper bracket 21, and a reinforcing piece 21a is disposed on one of the upper bracket 21 adjacent to the outer fastening section 33. The structural design of the gearbox suspension device enables all parts of the gearbox suspension to have good performance, and meets HPV performance requirements of a vehicle.

The other contents of the second embodiment are the same as those of the first embodiment.

In the actual product testing of the present application, the following conclusions are drawn: in the X direction, the static rigidity of the structure is very close to that of a traditional structure, and the static rigidity of the structure in the Z direction is higher than that of the traditional structure, but the rubber hardness of the structure is lower than that of the traditional structure.

The static rigidity of the X-direction structure is similar to that of a traditional structure, but the dynamic rigidity is lower than that of the traditional structure; the static stiffness of the Z-direction composite material is higher than that of a traditional structure, but the dynamic stiffness curve is quite close. The main reason is that the rubber hardness of the cantilever 3 assembly is only 45SH.A, while the rubber hardness of the main spring of the traditional structure is 48SH.A, and the rubber hardness of the cantilever 3 assembly is 50SH.A, so that high dynamic-static ratio is brought by high rubber hardness.

The foregoing has outlined rather broadly the principles and embodiments of the present application in order that the detailed description of the utility model may be better understood, and in order that the present application may be better understood. It should be noted that it would be obvious to those skilled in the art that various improvements and modifications can be made to the present application without departing from the principles of the present application, and such improvements and modifications fall within the scope of the claims of the present application.

Claims

1. The utility model provides a novel gearbox suspension, includes cantilever (3), outer support (2) and rubber spare (1), its characterized in that: the outer bracket (2) forms a mounting cavity, one end of the cantilever (3) extends into the mounting cavity, the cantilever (3) positioned in the mounting cavity is basically in a rectangular frame structure, and a plurality of downward protruding support legs (4) are arranged on the bottom surface of one end of the cantilever (3); the rubber part (1) is positioned in the installation cavity and connected with the inner wall surface of the installation cavity, and one end of the cantilever (3) is wrapped by the rubber part (1).

2. A novel gearbox suspension according to claim 1, characterized in that: a space exists between the rubber part (1) and the upper top surface of the installation cavity (5), and a space exists between the rubber part (1) and the left side surface and the right side surface of the installation cavity (5); the rubber part (1) completely fills the space between the bottom surface of the installation cavity (5) and the support leg (4), and the rubber part (1) is connected with the inner bottom surface of the installation cavity (5).

3. A novel gearbox suspension according to claim 1, characterized in that: one end of the cantilever (3) extending into the installation cavity is a frame section (31), the other end of the cantilever (3) positioned outside the installation cavity is a connecting section (32), and one end of the frame section (31) away from the connecting section (32) extends outside the installation cavity to form an outer buckling section (33).

4. A novel gearbox suspension according to claim 3, characterized in that: the frame section (31) is of a rectangular frame structure, and the frame section (31) comprises a bottom plate (31 a) and a plurality of reinforcing strips (31 b) arranged above the bottom plate (31 a) section.

5. A novel gearbox suspension according to claim 4, wherein: two supporting legs (4) are symmetrically arranged below the bottom plate (31 a), the supporting legs (4) are of strip-shaped structures bent towards opposite sides, and the longitudinal sections of the supporting legs (4) are of inverted triangle structures.

6. A novel gearbox suspension according to claim 5, characterized in that: the rubber part (1) wrapped outside the support leg (4) forms two rubber strips (11) for adapting to the support leg (4), and a space exists between the two rubber strips (11).

7. A novel gearbox suspension according to claim 3 or 4, characterized in that: the rubber part (1) positioned below the connecting section (32) forms a hexagonal block structure.

8. A novel gearbox suspension according to claim 4, wherein: the longitudinal section of the outer buckling section (33) is L-shaped, one end of the outer buckling section (33) is connected with the bottom plate (31 a), and the other end of the outer buckling section is vertically arranged on the outer side of the outer support (2).

9. A novel gearbox suspension according to claim 4 or 8, characterized in that: the outer support (2) comprises an upper support (21) and a lower support (22), wherein the upper support (21) and the lower support (22) are riveted through rivets, and the upper support (21) and the lower support (22) are staggered from front to back by a certain distance.

10. A novel gearbox suspension according to claim 9, characterized in that: the outer buckling section (33) is partially positioned on the outer side of the upper bracket (21), and a reinforcing sheet (21 a) is arranged on one part of the upper bracket (21) close to the outer buckling section (33).