CN205010158U - Lower engine guard board and automobile - Google Patents

Abstract

The utility model provides a lower engine guard board and automobile relates to the automobile parts field, wherein the backplate has first mounting point with frame front beam fixed connection's one end under the engine, the backplate has the second mounting point with frame rear frame member fixed connection's one end under the engine, be provided with on the backplate under the engine and be used for anti torsional a plurality of deformations structures, wherein the position located of every both ends that are out of shape the structure and first mounting point with the position looks adaptation at second mounting point place. The utility model provides a backplate is when relative displacement takes place for the mounting point under the engine, can absorb the moment of torsion that relative displacement brought through the deformation of self structure to reduce the stress that the mounting point received, the problem of backplate fracture under the reduction engine.

Description

A kind of engine lower guard board and automobile

Technical field

The utility model relates to auto parts and components field, particularly relates to a kind of engine lower guard board and automobile.

Background technology

In some cross-country car development process, consider that vehicle travels the complicated variety of road conditions, in order to protect the crucial assembly parts such as driving engine, the engine lower guard board at driving engine envisaged underneath, prevents sandstone from splashing to protect driving engine and hits.Due to spatial relationship, this engine lower guard board can only be installed on two crossbeams on vehicle frame.In vehicle test process, find that two crossbeams of vehicle frame relative torsion can occur when vehicle travels on uneven road surface, cause engine lower guard board often to ftracture, damage.Severe uneven road surface must being allowed because cross-country car travels road conditions, so the cross member of frame relative torsion in certain limit is inevitable, therefore for solving engine lower guard board problem of Cracking, need start with from engine lower guard board itself.

Utility model content

The utility model embodiment technical matters to be solved is, a kind of engine lower guard board and automobile are provided, the moment of torsion reversing and bring can be absorbed by the distortion of engine lower guard board self structure, reduce the stress that the attachment point on engine lower guard board is subject to, reduce the problem of engine lower guard board cracking.

In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:

According to an aspect of the utility model embodiment, provide a kind of engine lower guard board, one end that wherein said engine lower guard board is fixedly connected with frame front cross beam has the first attachment point, one end that described engine lower guard board is fixedly connected with Aft cross member has the second attachment point, described engine lower guard board is provided with for the multiple distressed structure of torsion proof, wherein the position residing for two ends of each distressed structure and the position at described first attachment point and described second attachment point place suitable.

Further, described multiple distressed structure is arranged on engine lower guard board in the interlaced and mode being through to the described engine lower guard board of small part respectively.

Further, the cross sectional shape of each distressed structure is U-shaped.

According to another aspect of the utility model embodiment, provide a kind of automobile, comprise engine lower guard board as above.

The beneficial effects of the utility model are:

In such scheme, engine lower guard board is provided with the distressed structure being easy to comparatively speaking deformation occurs, when frame front cross beam and Aft cross member generation relative torsion, engine lower guard board reduces by the distortion of the distressed structure on it stress that attachment point position is subject to, thus avoids attachment point position to occur the phenomenon of tension failure because causing engine lower guard board by excessive stresses.

Accompanying drawing explanation

Fig. 1 represents the mounting structure schematic diagram of the engine lower guard board that the utility model embodiment provides;

Fig. 2 represents A-A generalized section in engine lower guard board Fig. 1 that the utility model embodiment provides;

Fig. 3 represents that the engine lower guard board structural distortion that the utility model embodiment provides illustrates schematic diagram.

Detailed description of the invention

For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with the accompanying drawings and the specific embodiments the utility model is described in detail.

According to an aspect of the utility model embodiment, provide a kind of engine lower guard board, as shown in Figure 1, one end that engine lower guard board 1 is fixedly connected with frame front cross beam 2 has the first attachment point 101, and one end that engine lower guard board 1 is fixedly connected with Aft cross member 3 has the second attachment point 102.Further, engine lower guard board 1 is also provided with multiple for torsion proof distressed structure 103.Wherein, in order to better reduce the stress be subject to when the first attachment point 101 and the second attachment point 102 position are in and twist, the position residing for two ends of each distressed structure 103 and the position at the first attachment point 101 and the second attachment point 102 place suitable.

In such scheme, engine lower guard board 1 is provided with the distressed structure 103 being easy to comparatively speaking deformation occurs, when there is relative torsion in frame front cross beam 2 and Aft cross member 3, engine lower guard board 1 reduces by the deformation of the distressed structure 103 on it stress that the first attachment point 102 and the second attachment point 102 position be subject to, thus reduces attachment point position and occur the phenomenon of tension failure because causing engine lower guard board 1 by excessive stresses.It should be noted that, the deformation of distressed structure is not expendable, under certain External Force Acting, and can full recovery or part recovery.

Further, as shown in Figure 1, be the moment of torsion that the torsion reducing all directions produces, above-mentioned multiple distressed structure 103 is arranged on engine lower guard board 1 in the interlaced and mode being through to the engine lower guard board 1 of small part respectively.Wherein, the cross sectional shape of each distressed structure 103 is U-shaped, also can be waveform or serration, each distressed structure 103 can be a U-shaped groove, also can be that other are easy to occur the structure of deformation comparatively speaking, here do not limit, the concrete structure of distressed structure 103 can design according to actual needs.

In order to the stress that the first attachment point 101 and the second attachment point 102 that reduce engine lower guard board 1 are further subject to when reversing, the material selection GMT of the engine lower guard board 1 that the utility model embodiment provides, GMT is a kind of prepreg of glass thermal plastic, is the ready-made half-blank sheet material of glass and thermoplastic plastic.GMT density of material is low, is about 1.2g/cm3, and the engine lower guard board weight be made up of GMT is low, can reduce the stress that the first attachment point 101 and the second attachment point 102 are subject to; This material impact intensity is higher simultaneously, effectively can protect the impact that driving engine is subject to splashing sandstone, and self can not be punctured by the sandstone splashed, destroys.

For understanding the engine lower guard board 1 that the utility model embodiment provides further, be described in detail with an example below, it should be noted that, there is provided this example to be only the technical scheme provided to understand the utility model embodiment more clearly, but also do not illustrate that the utility model embodiment is only limitted to this.

As shown in Figures 2 and 3, engine lower guard board 1 to be matched with the first attachment point 101 and the second attachment point 102 by 4 bolts and is fixed on frame front cross beam 2 and Aft cross member 3, when there is relative torsion in frame front cross beam 2 and Aft cross member 3, also relative displacement can be there is in the first attachment point 101 of engine lower guard board 1 and the second attachment point 102, such as: as shown in Figure 3, in first attachment point 101, an attachment point moves up with frame front cross beam 2, an attachment point in second attachment point 102 moves down with Aft cross member 3, now these two the attachment point distances be on diagonal line will increase.If engine lower guard board 1 rigidity is very large, deformable hardly, so these two attachment points will be subject to very large pulling force, cause two attachment point positions easily to locate to rupture.And the engine lower guard board 1 in Fig. 3, owing to structure being designed with U-shaped distressed structure 103, when this two attachment point generation relative displacemenies, be there is bending distortion by engine lower guard board 1 in first long and short dash line 4 position of prolonging in Fig. 3, reduce by structural distortion the stress that two attachment point positions are subject to, reduce and occur that attachment point position is because causing the phenomenon of generation tension failure by excessive stresses.

Otherwise; if the another one attachment point generation relative displacement in the first attachment point 101 in another one attachment point and the second attachment point 102; engine lower guard board 1 second point prolonged in Fig. 3 is rule 5 positions occur bending distortion, can protect attachment point equally.

According to another aspect of the utility model embodiment, provide a kind of automobile, comprise engine lower guard board 1 as above.

Above-described is preferred implementation of the present utility model; should be understood that the ordinary person for the art; can also make some improvements and modifications not departing under principle prerequisite described in the utility model, these improvements and modifications are also in protection domain of the present utility model.

Claims (4)

1. an engine lower guard board, it is characterized in that, one end that described engine lower guard board (1) is fixedly connected with frame front cross beam (2) has the first attachment point (101), one end that described engine lower guard board (1) is fixedly connected with Aft cross member (3) has the second attachment point (102), described engine lower guard board (1) is provided with for the multiple distressed structure of torsion proof (103), wherein the position residing for two ends of each distressed structure (103) and the position at described first attachment point (101) and described second attachment point (102) place suitable.

2. engine lower guard board according to claim 1, it is characterized in that, described multiple distressed structure (103) is arranged on engine lower guard board (1) in the interlaced and mode being through to the described engine lower guard board (1) of small part respectively.

3. engine lower guard board according to claim 2, is characterized in that, the cross sectional shape of each distressed structure (103) is U-shaped.

4. an automobile, is characterized in that, comprises the engine lower guard board as described in claims 1 to 3 any one.