CN211918366U

CN211918366U - Commercial vehicle power assembly rear suspension cushion with independent buffer structure

Info

Publication number: CN211918366U
Application number: CN202020461769.4U
Authority: CN
Inventors: 尹立峰
Original assignee: Dongsen Shiyan Automotive Seals Co ltd
Current assignee: Dongsen Shiyan Automotive Seals Co ltd
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2020-11-13
Anticipated expiration: 2030-04-02

Abstract

The utility model discloses a commercial vehicle power assembly rear suspension cushion with an independent buffer structure, which relates to the technical field of automobile parts, and comprises a bracket, a support back plate and a buffer block; the support comprises a hollow body, and an opening matched with the shape of the support back plate is formed in the rear side of the body; the supporting back plate is arranged at the opening of the body, and the front side surface of the supporting back plate is provided with a conformal groove matched with the shape of the buffer block; the rear side part of the buffer block is arranged in the conformal groove; the body is internally provided with a pressure plate used for abutting against the front side part of the buffer block.

Description

Commercial vehicle power assembly rear suspension cushion with independent buffer structure

Technical Field

The utility model relates to an automobile parts technical field, specifically commercial car power assembly rear suspension cushion with independent buffer structure that has.

Background

Commercial vehicle powertrains are self-weight and are commonly diesel internal combustion engines, which cause the engine to vibrate significantly during starting and running. And the working road conditions of many commercial vehicles are very poor, and the rough road surface can lead to the power assembly to produce great displacement.

Accordingly, a commercial vehicle powertrain needs to provide damped resilient support to improve vehicle NVH (Noise, Vibration, Harshness), the most important of which is powertrain suspension. The rear suspension cushion is arranged between the power assembly and the vehicle beam, mainly has the function of supporting the power assembly of the commercial vehicle, and forms a suspension system together with the front suspension. The suspension system is responsible for attenuating the vibration that the engine transmitted to girder and automobile body, provides spacing and soft contact on the direction of six degrees of freedom for the power assembly when the power assembly takes place big displacement simultaneously, avoids abnormal sound, promotes the reliability of relevant part.

The rear suspension of the power assembly of the common commercial vehicle at present adopts a structure that a V-shaped vulcanized rubber suspension is embedded in a cast steel shell. The V-shaped rubber cushion can provide excellent rigidity and vibration isolation effect in the Z direction (the whole vehicle coordinate, the directions mentioned below are all directions under the whole vehicle coordinate), and can provide good displacement control capability in the X direction. But tend to be too stiff for suspension in the Y direction and lack damping, which results in lack of displacement control of the powertrain in the Y direction. The power assembly has excessive transverse swing, which easily causes the problems of pulling off of a suspension body, breakage of a suspension connecting screw rod and the like.

In addition, because the width of the crossbeam is limited, the space of the traditional suspension in the Y direction is narrow, and a rubber buffer block which is effective enough is difficult to arrange to solve the problem.

In addition, patent document "an engine cast aluminum suspension housing structure" (patent application No. 201721145878.X) discloses an engine cast aluminum suspension housing structure, wherein a hollow groove with the same shape as that of a suspension cushion is reserved in the middle of a cast aluminum suspension bracket, a core cast steel inlaid threaded sleeve is inlaid into the suspension cushion from the top of the suspension cushion, a shell cast steel inlaid threaded sleeve is inlaid into the cast aluminum suspension bracket from the rear end of the cast aluminum suspension bracket, and the suspension cushion is inserted into the reserved hollow groove of the cast aluminum suspension bracket. Among this technical scheme, the suspension cushion is that the cartridge is in reserving the dead slot and it is fixed through the cast steel inlay thread bush, and not only the operation of changing the suspension cushion is complicated, and the height of suspension cushion is not adjustable moreover, and the flexibility is relatively poor.

SUMMERY OF THE UTILITY MODEL

To the defect that exists among the prior art, the utility model aims to provide a commercial car power assembly rear suspension cushion with independent buffer structure adopts adjustable rigidity, adjustable spacing and Y that can change in a flexible way to the buffer block structural design.

In order to achieve the above purpose, the utility model adopts the technical proposal that: a commercial vehicle power assembly rear suspension cushion with an independent buffer structure comprises a bracket, a support back plate and a buffer block; the support comprises a hollow body, and an opening matched with the shape of the support back plate is formed in the rear side of the body; the supporting back plate is arranged at the opening of the body, and the front side surface of the supporting back plate is provided with a conformal groove matched with the shape of the buffer block; the rear side part of the buffer block is arranged in the conformal groove; the body is internally provided with a pressure plate used for abutting against the front side part of the buffer block.

The further improvement lies in that: the rear side part of the buffer block is provided with a plurality of sealing ribs, and the sealing ribs are in interference fit with the shape following grooves.

The further improvement lies in that: the buffer block is of a trapezoidal structure and is made of natural rubber materials.

The further improvement lies in that: a boss is arranged outside the front side wall of the body, and a connecting hole is formed in the boss.

The further improvement lies in that: the opening edge of the body is bent outwards to form a flange.

The further improvement lies in that: the bracket is made of a metal material.

The further improvement lies in that: the edge of the front side face of the support back plate is provided with a guide plate, and the inner side wall of the body is provided with a guide groove matched with the guide plate.

The further improvement lies in that: the back side of the support back plate is of a grid structure.

The further improvement lies in that: the support back plate is made of a nylon material.

The beneficial effects of the utility model reside in that:

the utility model discloses a can dismantle the natural rubber buffer block of change, form standardized module, the back suspension cushion of different rigidity demands only need according to rigidity needs with regard to the buffer block that optional performance is suitable, provide the Y that accords with whole car NVH demand and power assembly displacement control demand to rigidity. The shape following groove on the nylon backboard is in interference fit with the two convex sealing ribs on the side wall of the natural rubber buffer block, so that perfect installation firmness can be provided. Meanwhile, the support and the nylon back plate form a pre-compression state for the buffer block, and the buffer block and the sealing ribs are combined together, so that the buffer block cannot fall off when the power assembly moves.

Drawings

FIG. 1 is an exploded view of a rear suspension cushion of a power assembly of a commercial vehicle according to an embodiment of the present invention;

FIG. 2 is an exploded view of the rear suspension cushion of the power assembly of the commercial vehicle in another perspective in accordance with an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the rear suspension cushion of the power assembly of the commercial vehicle in an embodiment of the present invention;

FIG. 4 is a partial cross-sectional view of a rear suspension cushion of a commercial vehicle powertrain in an embodiment of the present invention;

fig. 5 is a schematic view of a bracket according to an embodiment of the present invention;

fig. 6 is a schematic view of a support back plate according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a buffer block in an embodiment of the present invention.

Reference numerals:

1-a scaffold; 11-a body; 12-a flange plate; 13-a boss; 14-connecting holes; 15-pressing plate; 16-a guide groove;

2-supporting the back plate; 21-conformal grooves; 22-a guide plate; 23-a grid structure;

3-a buffer block; 31-sealing ribs.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

The technical solution and the advantages of the present invention will be more clear and clear by further describing the embodiments of the present invention with reference to the drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.

Referring to fig. 1-4, an embodiment of the present invention provides a commercial vehicle powertrain rear suspension cushion with an independent buffer structure, which includes a bracket 1, a support back plate 2 and a buffer block 3.

Referring to fig. 5, the bracket 1 comprises a hollow body 11, and the rear side of the body 11 is provided with an opening matched with the shape of the support backboard 2; specifically, a boss 13 is disposed outside a front side wall of the body 11, and a connection hole 14 is disposed on the boss 13. The opening edge of the body 11 is bent outwards to form a flange 12. In the present embodiment, the bracket 1 is made of a metal material.

Referring to fig. 6, the support back plate 2 is installed at the opening of the body 11, and a conformal recess 21 adapted to the shape of the buffer block 3 is formed in the front side surface of the support back plate 2; specifically, the edge of the front side of the support back plate 2 is provided with a guide plate 22, and the inner side wall of the body 11 is provided with a guide groove 16 matched with the guide plate 22. The back side of the support back plate 2 is a grid structure 23. In this embodiment, the support backplate 2 is made of nylon material.

Referring to fig. 7, the rear side portion of the buffer block 3 is mounted in the conformal recess 21; the body 11 is provided with a pressing plate 15 for pressing the front side portion of the buffer block 3. Specifically, the rear side part of the buffer block 3 is provided with a plurality of sealing ribs 31, and the sealing ribs 31 are in interference fit with the conformal grooves 21. In this embodiment, the buffer block 3 is a trapezoidal structure and made of a natural rubber material. The appearance of the buffer block, the height of the buffer block and the depth of the groove are all adjustable. After the support is assembled with the buffer block and the nylon back plate, the buffer block is in a pre-compression state.

In the description of the specification, reference to the description of "one embodiment," "preferably," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention, and schematic representations of the terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

With the above structure and principle in mind, those skilled in the art should understand that the present invention is not limited to the above embodiments, and all modifications and substitutions based on the present invention and adopting the known technology in the art are within the scope of the present invention, which should be limited by the claims.

Claims

1. The utility model provides a suspension cushion behind commercial car power assembly with independent buffer structure, includes support (1), its characterized in that: the device also comprises a supporting back plate (2) and a buffer block (3);

the support (1) comprises a hollow body (11), and an opening matched with the support back plate (2) in shape is formed in the rear side of the body (11);

the supporting back plate (2) is arranged at an opening of the body (11), and a shape following groove (21) matched with the shape of the buffer block (3) is formed in the front side surface of the supporting back plate (2);

the rear side part of the buffer block (3) is arranged in the conformal groove (21); the body (11) is internally provided with a pressure plate (15) which is used for abutting against the front side part of the buffer block (3).

2. The commercial vehicle powertrain rear suspension cushion with independent cushion structure of claim 1, wherein: the rear side part of the buffer block (3) is provided with a plurality of sealing ribs (31), and the sealing ribs (31) are in interference fit with the conformal grooves (21).

3. The commercial vehicle powertrain rear suspension cushion with independent cushion structure of claim 1, wherein: the buffer block (3) is of a trapezoidal structure and is made of natural rubber materials.

4. The commercial vehicle powertrain rear suspension cushion with independent cushion structure of claim 1, wherein: a boss (13) is arranged outside the front side wall of the body (11), and a connecting hole (14) is formed in the boss (13).

5. The commercial vehicle powertrain rear suspension cushion with independent cushion structure of claim 1, wherein: the opening edge of the body (11) is bent outwards to form a flange (12).

6. The commercial vehicle powertrain rear suspension cushion with independent cushion structure of claim 1, wherein: the bracket (1) is made of a metal material.

7. The commercial vehicle powertrain rear suspension cushion with independent cushion structure of claim 1, wherein: the edge of the front side face of the support back plate (2) is provided with a guide plate (22), and the inner side wall of the body (11) is provided with a guide groove (16) matched with the guide plate (22).

8. The commercial vehicle powertrain rear suspension cushion with independent cushion structure of claim 1, wherein: the back side of the supporting back plate (2) is of a grid structure (23).

9. The commercial vehicle powertrain rear suspension cushion with independent cushion structure of claim 1, wherein: the supporting back plate (2) is made of nylon materials.