CN210011806U - Vehicle and auxiliary frame thereof - Google Patents

Abstract

The embodiment of the utility model relates to a vehicle and its subframe, and relates to the technical field of vehicle manufacturing. The main technical problem to be solved is that the local stress of the welding plate on the subframe body is too concentrated, which is likely to cause potential safety hazards of the vehicle. The main technical solution adopted is as follows: the sub-frame includes: an upper frame plate, a lower frame plate, a frame side plate, a body connecting piece and a support member, and the upper frame plate is opposite to the lower frame plate, so the frame upper plate is opposite to the lower frame plate. The frame side panels are respectively connected to the frame upper panel and the frame lower panel, and the support member includes opposite first support sides and second support sides, wherein the first support side is connected to the vehicle body A connector, the second support side is connected to the upper plate of the frame and the side plate of the frame, so as to alleviate the problem of excessive local stress concentration on the welding plate on the sub-frame body in the prior art, and enhance the overall sub-frame The rigidity improves the strength and stability of the vehicle.

Description

Vehicle and its subframe

technical field

The embodiments of the utility model relate to the technical field of vehicle manufacturing, and in particular, to a vehicle and its subframe.

Background technique

The body of the automobile subframe and the body connecting structure for connecting the body are supported by a steel pipe, one end of the steel pipe is welded with the body connecting structure, and the other end of the steel pipe is inserted into the preset opening of the welding plate on the body, and is connected with the body Solid form welds to meet high-strength support requirements.

Among them, corresponding to the requirements of different support strength, the size of the steel pipe is different. With the increase of the support strength requirements, the outer diameter of the steel pipe also increases, which leads to the opening of the welding plate on the sub-frame body of the automobile. The hole size also needs to be increased accordingly, so that the opening of the welding plate on the sub-frame body is too large, and the local stress is too concentrated, which is likely to cause a safety hazard to the vehicle.

Utility model content

In view of this, the embodiments of the present invention provide a vehicle and its sub-frame, the main technical problem to be solved is that the local stress of the welding plate on the sub-frame body is too concentrated, which is likely to cause potential safety hazards of the vehicle.

To achieve the above purpose, the embodiments of the present utility model mainly provide the following technical solutions:

On the one hand, an embodiment of the present invention provides a sub-frame, comprising: an upper frame plate, a lower frame plate, a frame side plate, a body connecting piece, and a support piece, the upper frame plate and the vehicle The lower plates of the frame are opposite to each other, and the side plates of the frame are respectively connected to the upper plate of the frame and the lower plate of the frame, wherein

The support member includes opposite first support sides and second support sides, wherein the first support side is connected to the vehicle body connecting member, and the second support side is connected to the frame upper plate and the vehicle frame side panel.

The purpose of the embodiments of the present utility model and the solution of the technical problems can be further achieved by adopting the following technical measures.

Optionally, in the aforementioned sub-frame, wherein the support member includes a first support sub-component and a second support sub-component, wherein the first end of the first support sub-component is connected with the vehicle body connecting member, so The second end of the first support part is connected to the upper plate of the frame, the first end of the second support part is connected to the vehicle body connector, and the second end of the second support part is connected to the vehicle body. The frame side panels are connected.

Optionally, in the aforementioned sub-frame, wherein the frame side panels include opposite first side panels and second side panels, and the first side panels are respectively connected to the frame upper panel and the frame lower panel. a plate, the second side plate is respectively connected to the upper plate of the frame and the lower plate of the frame;

the second end of the second support component is connected with the first side plate;

The second end of the first support sub-piece includes a first connecting part and a second connecting part, the first connecting part is connected with the upper plate of the vehicle frame, and the second connecting part is directed from the first part to the other. The second side plate extends and is connected with the second side plate.

Optionally, in the aforementioned sub-frame, wherein the first connecting portion is provided with a first through hole facing the upper plate of the frame, and the first connecting portion and the upper plate of the frame pass toward the upper plate of the frame. The first through hole location is soldered to connect.

Optionally, in the aforementioned sub-frame, wherein the second connecting portion is provided with a second through hole facing the second side plate, and the second connecting portion and the second side plate pass through to the second side plate. The second through hole is connected by soldering.

Optionally, in the aforementioned sub-frame, wherein the second support sub-piece is provided with a third through hole facing the first side plate, and the second support sub-piece and the first side plate pass through the direction to the first side plate. The third through hole is connected by welding.

Optionally, in the aforementioned sub-frame, wherein the first support sub-piece and the second support sub-piece are in a semi-ring structure, and the first support sub-piece and the second support sub-piece are buckled to form a tubular shape body.

Optionally, the aforementioned sub-frame, wherein the edge of the upper plate of the frame is provided with a reinforcing structure flange; or

The edge of the lower plate of the frame is provided with a reinforced structure flange.

Optionally, in the aforementioned sub-frame, the body connecting member is a soft connecting part used to form a soft connection between the sub-frame and the body.

On the other hand, embodiments of the present invention provide a vehicle, comprising:

body;

In the above-mentioned subframe, the vehicle body connecting member is connected to the vehicle body.

By means of the above technical solutions, the vehicle and its sub-frame provided by the technical solution of the present utility model have at least the following advantages:

In the technical solution provided by the embodiment of the present invention, the supports used to support the connecting parts of the vehicle body are respectively connected with the upper frame plate and the side plate of the vehicle frame of the sub-frame, so that the stress supporting the connecting parts of the vehicle body can be distributed to The upper plate of the frame and the side plate of the frame can alleviate the problem of excessive local stress concentration of the welding plate on the sub-frame body in the prior art, enhance the overall rigidity of the sub-frame, and improve the strength and stability of the vehicle.

The above description is only an overview of the technical solutions of the present invention. In order to be able to understand the technical means of the embodiments of the present invention more clearly, and to implement them according to the contents of the description, the following describes the preferred embodiments of the present invention and the accompanying drawings in detail. The description is as follows.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are only for the purpose of illustrating the preferred embodiments, and are not considered to be a limitation of the present invention. Also, the same components are denoted by the same reference numerals throughout the drawings. In the attached image:

1 is a schematic diagram of a first axonometric structure of a sub-frame provided by an embodiment of the present invention;

2 is a schematic diagram of a second axonometric structure of a sub-frame provided by an embodiment of the present invention;

3 is a schematic structural diagram of a top view of a sub-frame provided by an embodiment of the present invention;

4 is a schematic structural diagram of a front view of a sub-frame provided by an embodiment of the present invention;

5 is a schematic structural diagram of a sub-frame body connection piece and a support piece provided by an embodiment of the present invention;

6 is a partial cross-sectional structural schematic diagram of a sub-frame provided by an embodiment of the present invention.

Detailed ways

In order to further illustrate the technical means and effects adopted by the present utility model to achieve the purpose of the predetermined utility model embodiment, the following is a detailed description of the vehicle and its sub-frame proposed according to the embodiments of the present utility model in conjunction with the accompanying drawings and preferred embodiments. Embodiments, structures, features and their effects are described in detail as follows. In the following description, different "an embodiment" or "embodiments" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

1 to 4 are an embodiment of the sub-frame provided by the present invention, which can be used in vehicles. Please refer to FIGS. 1 to 4. The sub-frame proposed by an embodiment of the present invention includes: Plate 10 , frame lower plate 20 , frame side plate 30 , body connecting member 40 , support member 50 , the frame upper plate 10 is opposite to the frame lower plate 20 , and the frame side plates 30 are respectively connected The frame upper plate 10 and the frame lower plate 20, the support member 50 includes a first support side and a second support side opposite, wherein the first support side is connected to the vehicle body connecting member 40, The second support side is connected to the frame upper plate 10 and the frame side plate 30 .

In the technical solution provided by the embodiment of the present invention, the supports used to support the connecting parts of the vehicle body are respectively connected with the upper frame plate and the side plate of the vehicle frame of the sub-frame, so that the stress supporting the connecting parts of the vehicle body can be distributed to The upper plate of the frame and the side plate of the frame can alleviate the problem of excessive local stress concentration of the welding plate on the sub-frame body in the prior art, and enhance the overall rigidity of the sub-frame.

As the skeleton of the front and rear axles, the subframe is an integral part of the front and rear axles. It has the function of supporting the front and rear suspensions, the engine and the steering gear. It can be connected to the body through four or six points to block vibration and noise directly. The role of entering the carriage. In addition, the subframe, as the installation support for all the components of the front and rear axles, also plays a key role in the modular subassembly of the entire vehicle assembly.

Body connecting parts have various structural forms, which can be mainly divided into rigid connecting parts and soft connecting parts.

Taking the rigid connection part as an example, the rigid connection part is a sleeve structure. When the subframe is connected to the body, a connection hole is provided on the body, and then the connection bolt passes through the connection hole, and then passes through the sleeve on the subframe. The pipe realizes the connection between the two. With such a structure, a rigid connection is formed between the subframe and the vehicle body, and the disadvantage is that the anti-vibration and noise reduction effect cannot be satisfied, and the sleeve is easily worn, which affects the performance of the vehicle.

Taking the soft connecting part as an example, the soft connecting part includes an outer sleeve, an inner bushing, and a rubber sleeve. The inner sleeve is embedded in the outer sleeve, and the rubber sleeve is clamped between the inner sleeve and the outer sleeve. The clamping of the rubber sleeve can be It is realized by vulcanization process and so on. When the subframe is connected with the body, the connection holes are provided on the body, and then the connection bolts pass through the connection holes, and then pass through the inner bushing on the subframe to realize the connection between the two. With such a structure, a soft connection is formed between the subframe and the body, which has the advantage of meeting the effect of anti-vibration and noise reduction. The disadvantage is that the overall bending resistance of the subframe is deteriorated.

In order to improve the overall bending resistance of the sub-frame, the edge of the upper plate 10 of the frame can be provided with a reinforced structure flange, or the edge of the lower plate 20 of the vehicle frame can be provided with a reinforcement structure flange 21, of course, also At the same time, the edge 10 of the upper plate of the frame and the edge 20 of the lower plate of the frame may be provided with a reinforcing structure flange. In implementation, the reinforcing structure flange 21 can be an arc panel or a straight panel, and is connected to the edge of the upper panel of the frame and the edge of the lower panel of the frame by welding.

In a specific implementation, the support member may be an integral tubular body, which has high structural strength and light structural weight. However, in the actual production process, it is difficult to manufacture an integrated tubular body that is convenient for connecting the upper plate of the frame and the side plate of the frame. For the convenience of production, in conjunction with FIG. 5 , the support member includes a first support member 51 and a second support component 52, wherein the first end of the first support component 51 is connected to the vehicle body connector 40, and the second end of the first support component 51 is connected to the frame upper plate 10 connection, the first end of the second support part 52 is connected with the vehicle body connecting part 40 , and the second end of the second support part 52 is connected with the frame side plate 30 . Wherein, the structural forms of the first supporting component 51 and the second supporting component 52 may respectively adopt structural forms such as a plate body, a solid rod, and a hollow tube. In practice, since the first support part 51 and the second support part 52 have a certain length, it is easy to generate large bending stress and bending deformation. In order to make the first support part 51 and the second support part 52 have a certain length 52 is kept stable, so that the two are organically combined, the first support part 51 and the second support part 52 are in a semi-ring structure, the first support part 51 and the second support part 52 The buckle forms a tubular body, so that mutual support is formed between the first supporting part 51 and the second supporting part 52, and the bending resistance of the supporting part is enhanced. The shape of the tubular body can be formed into a circular tube, a triangular tube, a rectangular tube Or polygonal tubes, etc. Specifically, welding can be performed at the buckling position of the first supporting component 51 and the second supporting component 52 . Alternatively, the size of the half ring of the first supporting component 51 is larger than that of the second supporting component 52 , and the outer side of the half ring of the second supporting component 52 is embedded in the inner side of the half ring of the first supporting component 51 . Alternatively, the size of the half ring of the first supporting component 51 is smaller than that of the second supporting component 52 , the outer side of the half ring of the first supporting component 51 is embedded in the inner side of the half ring of the second supporting component 52 , and so on.

In a specific implementation, the frame side panel 30 includes a first side panel 31 and a second side panel 32 opposite to each other, and the first side panel 31 is respectively connected to the frame upper panel 10 and the frame lower panel Plate 20, the second side plate 32 is respectively connected to the frame upper plate 10 and the frame lower plate 20; the second end of the second support sub-piece 52 is connected to the first side plate 31, The second end of the second support part 52 bears the force of the first side plate 31; the second end of the first support part 51 includes a first connection part 511 and a second connection part 512, the first The connecting portion 511 is connected to the upper frame plate 10 , and the second connecting portion 512 extends from the first portion 511 to the second side plate 32 and is connected to the second side plate 32 so that the first The force of the second end of the support part 51 is simultaneously supported on the upper frame plate 10 and the second side plate 32, so that the two side plates and the upper frame plate can simultaneously form a support for the support member 50, further lowering the frame stress on the upper plate.

The connection between the support and the upper plate of the frame and the side plate of the frame usually adopts a welding process, wherein the position of the weld bead can be located at the outer edge of the contact surface between the support and the upper plate of the frame and the side plate of the frame. The perimeter of the outer edge of the contact surface is limited, and it is difficult to ensure the welding stability of the support member and the upper plate of the frame or the side plate of the frame, respectively. In some embodiments provided by the present invention, the first connecting portion 511 has a first through hole (not shown) facing the upper plate of the vehicle frame, and the first connecting portion 511 is connected to the vehicle frame. The frame top plate 10 is connected by welding to the first through hole position. It is easy to understand that, in actual welding, the outer edge position of the first connecting portion 511 is welded to the frame top plate 10 at the same time, so as to meet the requirements of the first connecting portion. Welding stability between the 511 and the upper frame plate 10, and reduce the weight of the subframe. In some embodiments provided by the present invention, the second connecting portion 512 has a second through hole 513 facing the second side plate 32 , and the second connecting portion 512 is connected to the second side plate 32 . 32 is connected by soldering to the second through hole 513 . It is easy to understand that, in actual welding, the outer edge of the second connecting portion 512 is welded to the second side plate 32 at the same time, so as to satisfy the welding stability between the second connecting portion 512 and the second side plate 32 and reduce the The weight of the subframe. In some embodiments provided by the present invention, the second support part 52 has a third through hole 521 facing the first side plate 31 , and the second support part 52 is connected to the first side plate 31 . The boards 31 are connected by welding to the third through hole 521 . It is easy to understand that, in the actual welding, the outer edge position of the second support component 52 and the first side plate 31 are welded at the same time, so as to satisfy the welding stability between the second support component 52 and the first side plate 31, And reduce the weight of the subframe.

In some embodiments, as shown in FIG. 6 , the steering gear mounting sleeves 60 of the subframe can also pass through the openings of the upper frame 10 and the lower frame 20 respectively, and are respectively connected to the frame. The upper plate 10 and the lower plate 20 of the frame are welded, so that the overall bending resistance of the subframe can be further improved, thereby solving the problem that the overall bending resistance of the subframe is deteriorated by using soft connecting parts for the body connector.

An embodiment of the vehicle provided by the present utility model can be applied to the vehicle. The vehicle provided by one embodiment of the present utility model includes: a body and a sub-frame. The subframe includes: a frame upper plate, a lower frame plate, a frame side plate, a body connecting piece and a support member, the upper frame plate is opposite to the lower frame plate, and the frame side plates are respectively Connecting the frame upper plate and the frame lower plate, the support member includes opposite first support sides and second support sides, wherein the first support side is connected to the vehicle body connecting member, and the first support side is connected to the vehicle body connecting member. The two supporting sides are connected to the upper plate of the frame and the side plate of the frame. The vehicle body connector is connected to the vehicle body.

In the technical solution provided by the embodiment of the present invention, the supports used to support the connecting parts of the vehicle body are respectively connected with the upper frame plate and the side plate of the vehicle frame of the sub-frame, so that the stress supporting the connecting parts of the vehicle body can be distributed to The upper plate of the frame and the side plate of the frame can alleviate the problem of excessive local stress concentration of the welding plate on the sub-frame body in the prior art, enhance the overall rigidity of the sub-frame, and improve the strength and stability of the vehicle.

Wherein, the sub-frame described in this embodiment may be the sub-frame described in the above-mentioned embodiments, which will not be repeated in this embodiment.

In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

It is to be understood that the relevant features in the above-mentioned apparatus may refer to each other. In addition, "first", "second", etc. in the above-mentioned embodiments are used to distinguish each embodiment, and do not represent the advantages and disadvantages of each embodiment.

In the description provided herein, numerous specific details are set forth. It will be understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it will be appreciated that in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together into a single Examples, figures, or descriptions thereof. However, this disclosed apparatus should not be construed as reflecting the intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as the following claims reflect, utility model aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the Detailed Description are hereby expressly incorporated into this Detailed Description, with each claim standing on its own as a separate embodiment of this invention.

It will be understood by those skilled in the art that the components of the apparatus in an embodiment can be adaptively changed and arranged in one or more apparatuses different from the embodiment. Components of the embodiments may be combined into one component, and furthermore they may be divided into subcomponents. All features disclosed in this specification (including accompanying claims, abstract and drawings) and all parts of any apparatus so disclosed may be combined in any combination, unless at least some of such features are mutually exclusive. Each feature disclosed in this specification (including accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, it will be understood by those skilled in the art that although some of the embodiments described herein include certain features included in other embodiments and not others, combinations of features of different embodiments are meant to be within the scope of the present invention. range and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination. The various component embodiments of the present invention may be implemented in hardware, or in a combination thereof.

It should be noted that the above-described embodiments illustrate rather than limit the invention, and that alternative embodiments may be devised by those skilled in the art without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or components not listed in a claim. The word "a" or "an" preceding a component or component does not preclude the presence of a plurality of such components or components. The present invention can be implemented by means of a device comprising several different components. In the claims enumerating several means, several of these means may be embodied by one and the same item of means. The use of the words first, second, and third, etc. do not denote any order. These words can be interpreted as names.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are all It still belongs to the scope of the technical solution of the present invention.

Claims (10)

1. A subframe, comprising: the automobile frame comprises an upper frame plate, a lower frame plate, side frame plates, an automobile body connecting piece and a supporting piece, wherein the upper frame plate is opposite to the lower frame plate, and the side frame plates are respectively connected with the upper frame plate and the lower frame plate

The support member comprises a first support side and a second support side which are opposite, wherein the first support side is connected with the vehicle body connecting piece, and the second support side is connected with the vehicle frame upper plate and the vehicle frame side plate.

2. The subframe of claim 1 wherein,

the support piece includes that first support divides piece and second support to divide the piece, wherein, first support divide the first end of piece with the automobile body connecting piece is connected, first support divide the second end of piece with the frame upper plate is connected, the second support divide the first end of piece with the automobile body connecting piece is connected, the second support divide the second end of piece with the frame curb plate is connected.

3. The subframe of claim 2 wherein,

the frame side plates comprise a first side plate and a second side plate which are opposite, the first side plate is respectively connected with the frame upper plate and the frame lower plate, and the second side plate is respectively connected with the frame upper plate and the frame lower plate;

a second end of the second support sub is connected with the first side plate;

the second end of the first support component includes a first connection portion connected to the frame upper plate and a second connection portion extending from the first portion to the second side plate and connected to the second side plate.

4. The subframe of claim 3 wherein,

the first connecting part is provided with a first through hole opposite to the frame upper plate, and the first connecting part is connected with the frame upper plate in a welding mode at the position of the first through hole.

5. The subframe of claim 3 wherein,

the second connecting part is provided with a second through hole opposite to the second side plate, and the second connecting part and the second side plate are connected by welding at the position of the second through hole.

6. The subframe of claim 3 wherein,

the second supporting part is provided with a third through hole opposite to the first side plate, and the second supporting part is connected with the first side plate through welding at the position of the third through hole.

7. The subframe of claim 2 wherein,

the first supporting part and the second supporting part are of a semi-annular structure, and the first supporting part and the second supporting part are buckled with each other to form a tubular body.

8. The subframe of claim 1 wherein,

a reinforced structure flanging is arranged at the edge of the frame upper plate; or

And a reinforcing structure flanging is arranged at the edge of the lower plate of the frame.

9. The subframe of any one of claims 1-8 wherein,

the vehicle body connecting piece is a soft connecting part used for forming soft connection between the auxiliary frame and the vehicle body.

10. A vehicle, comprising:

a vehicle body;

the subframe of any of claims 1-9, wherein said body connector is coupled to said body.

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