CN212099061U

CN212099061U - Special vehicle body and special vehicle using same

Info

Publication number: CN212099061U
Application number: CN202020207977.1U
Authority: CN
Inventors: 金鑫; 周猛; 王珏; 王向阳
Original assignee: Zhengzhou Yutong Heavy Industry Co Ltd
Current assignee: Zhengzhou Yutong Heavy Industry Co Ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-12-08
Anticipated expiration: 2030-02-25

Abstract

The utility model relates to a special type car automobile body and use special type car of this automobile body, the special type car automobile body includes the main frame, the main frame includes longeron, crossbeam and stand, the longeron includes deck longeron, roof-rack longeron, main longeron and chassis longeron, form upper deck cabin space between deck longeron and the roof-rack longeron, the front portion of upper deck cabin space is equipped with the driver's cabin, form lower floor cabin space between roof-rack longeron and the main longeron, lower floor cabin space is equipped with the equipment area; the cross beams comprise deck cross beams, top frame cross beams, main cross beams and bottom frame cross beams; the upright columns comprise cross beam upright columns arranged at two ends of the cross beam and longitudinal beam upright columns arranged at two ends of the longitudinal beam; a closed ring is enclosed between the longitudinal beam and the cross beam on the same layer; a closed ring is enclosed between the cross beam and the cross beam upright post which are corresponding up and down; and a closed ring is enclosed between the longitudinal beam and the longitudinal beam upright post which are vertically corresponding. The special vehicle body has high structural strength and strong deformation resistance, and can meet the requirement on strength during running on land and in water.

Description

Special vehicle body and special vehicle using same

Technical Field

The utility model relates to a special type vehicle technical field especially has related to a special type car automobile body and has used the special type car of this automobile body.

Background

Unlike ordinary vehicles, some special vehicles are required to be able to travel both on land and on water. In order to meet the requirements, the special vehicle should have various accessories (such as an engine, a suspension and the like) of the traditional land vehicle, and also have marine equipment (such as a water pump, a stabilizer, a spray pump or a propeller and the like) capable of walking on water.

The problem that the increase of on-vehicle annex directly brought is that the automobile body will bear bigger weight, simultaneously because will install more annex, if adopt traditional body construction, the weight of automobile body will also increase along with it, and the increase of weight will directly influence the speed of going of vehicle, and then influences its mobility and flexibility. On the other hand, because the stress condition of the vehicle body on the land is different from the stress condition on water, for example, the impact force of the vehicle body on the land mainly comes from a land suspension, an oil-gas spring and the like, the main part to be impacted is positioned at the bottom of the vehicle body, when the vehicle runs on water, the vehicle body is easily lifted by higher sea waves, and when the sea waves retreat or the special vehicle easily collides with the ground or sand and stones when entering or leaving water, the vehicle body can generate larger impact force to the bottom of the vehicle body. In addition, in order to ensure that the vehicle body has enough stability, particularly, special vehicles are required to have lower center of gravity when running on water; the operating characteristics of the switching between land and marine modes also require better corrosion resistance of the vehicle body. By combining various factors, the vehicle body structures such as the traditional straight crossbeam and the like can not meet the use requirements of the special vehicles.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a special vehicle body which can meet the requirements of land driving strength and water driving strength; and simultaneously, the utility model aims at still providing the special type car of using above-mentioned special type car automobile body.

In order to achieve the above object, the utility model discloses a technical scheme of special type car automobile body is:

scheme 1: the special vehicle body includes the main frame, and the main frame includes:

the longitudinal beam comprises a deck longitudinal beam, a top frame longitudinal beam, a main longitudinal beam and a bottom frame longitudinal beam which are sequentially arranged from top to bottom, an upper cabin space is formed between the deck longitudinal beam and the top frame longitudinal beam, a driving area is arranged at the front part of the upper cabin space, a lower cabin space is formed between the top frame longitudinal beam and the main longitudinal beam, and an equipment area is arranged in the lower cabin space;

the beam comprises a deck beam, a top frame beam, a main beam and a bottom frame beam which are sequentially arranged from top to bottom;

the upright columns comprise cross beam upright columns arranged at two ends of the cross beam and longitudinal beam upright columns arranged at two ends of the longitudinal beam;

a closed ring is enclosed between the longitudinal beam and the cross beam on the same layer;

a closed ring is enclosed between the cross beam and the cross beam upright post which are corresponding up and down;

and a closed ring is enclosed between the longitudinal beam and the longitudinal beam upright post which are vertically corresponding.

Has the advantages that: the special vehicle body has the advantages that the longitudinal beams corresponding to the upper part and the lower part of the main frame of the special vehicle body and the longitudinal beam stand columns enclose a closed annular frame, the transverse beams corresponding to the upper part and the lower part of the main frame of the special vehicle body and the transverse beam stand columns enclose a closed annular frame, and the longitudinal beams and the transverse beams on the same layer also enclose a closed annular frame, namely the closed annular frames exist in all directions of the special vehicle body, so that the special vehicle body forms a full-bearing structure, all the closed annular frames form a whole body, the structural strength and the rigidity of the special vehicle body are improved, when the special vehicle body is subjected to impact load, the whole special vehicle body participates in load distribution, the deformation resistance of the special vehicle body is improved, and the special vehicle is guaranteed to have higher strength and higher impact resistance when running on land or on.

Scheme 2: further, on the basis of the scheme 1, the main longitudinal beam is located at a lower position on the main frame.

Has the advantages that: the gravity center of the special vehicle body is deviated, so that the special vehicle has enough stability when running on land and in water.

Scheme 3: further, on the basis of the scheme 1, closed rings defined by longitudinal beams and transverse beams on the same layer are arranged at intervals in the vertical direction, closed rings defined by transverse beams and transverse beam upright columns which correspond to each other up and down are arranged at intervals in the front-back direction, and closed rings defined by longitudinal beams and longitudinal beam upright columns which correspond to each other up and down are arranged at intervals in the left-right direction.

Has the advantages that: a multi-stage closed annular frame structure is formed in each direction of the special vehicle body, so that the structural strength and the deformation resistance of each position of the special vehicle are improved, and the special vehicle can well meet the driving requirements on land and water.

Scheme 4: further, on the basis of any one of the schemes 1 to 3, the joints of the cross beams and the corresponding longitudinal beams share one upright column.

Has the advantages that: the use quantity of the upright posts can be reduced, the material is saved, and the structure of the main frame is simplified.

Scheme 5: further, on the basis of any one of the aspects 1 to 3, the main frame further comprises a reinforcing part, and the reinforcing part is positioned at the suspension mounting position of the main frame and used for improving the strength of the special vehicle suspension.

Has the advantages that: because the special vehicle runs on the land, the impact load borne by the upper suspension is larger, and the reinforcing part is arranged at the mounting position of the suspension of the main frame, so that the structural strength and the impact load resistance of the suspension can be improved, and the special vehicle can better adapt to the running requirement on the land.

Scheme 6: further, on the basis of any one of the schemes 1 to 3, upright pieces are enclosed between the deck longitudinal beam and the corresponding longitudinal beam upright post, the two upright pieces are connected through a corresponding cross beam, an engine mounting area is formed in a lower area between the two upright pieces, and a connecting beam arranged in the engine mounting area is connected with the upright piece on the corresponding side.

Has the advantages that: the connecting beam arranged in the engine mounting area is connected with the vertical sheets on the corresponding side, so that the rigidity of the vertical sheets on the two sides can be ensured.

Scheme 7: further, on the basis of any one of the schemes 1 to 3, a plurality of inclined struts are arranged at the neutral position between the cross beam and the longitudinal beam on the same layer, and the inclined struts are connected end to form a zigzag structure.

Has the advantages that: the plurality of inclined struts are arranged at the neutral position, so that stress concentration can be avoided, impact load borne by the special vehicle body can be dispersed, and the running reliability of the special vehicle can be ensured.

Scheme 8: further, on the basis of any one of the aspects 1 to 3, the main frame further comprises a support portion, and the support portion comprises a support pillar arranged between the main longitudinal beam and the bottom longitudinal beam.

Has the advantages that: the bearing capacity of main longitudinal beam department can be improved to the setting support column.

Scheme 9: further, on the basis of any one of the schemes 1 to 3, the main frame is made of a titanium alloy material.

Has the advantages that: the titanium alloy has the advantages of low density, high strength and corrosion resistance, light weight and high strength, reduces the weight of the main frame and improves the corrosion resistance of the main frame on the basis of ensuring the strength of the main frame, so that the special vehicle can meet various performance requirements of land and water running.

Scheme 10: further, on the basis of any one of the schemes 1 to 3, skin supporting pieces are arranged at the left side, the right side and/or the bottom of the main frame.

Has the advantages that: the skin can be well supported while the main frame is reinforced, so that the overwater stress requirement can be met.

The utility model discloses a technical scheme is of special type car:

scheme 1: the special type car includes the automobile body, and the automobile body includes the main frame, and the main frame includes:

Has the advantages that: the longitudinal beams and the longitudinal beam columns which correspond to each other up and down of the main frame of the special vehicle body enclose a closed annular frame, the transverse beams and the transverse beam columns which correspond to each other up and down enclose a closed annular frame, and the longitudinal beams and the transverse beams which are positioned on the same layer also enclose a closed annular frame, namely the closed annular frames are arranged in all directions of the special vehicle body, so that the special vehicle body forms a full-bearing structure, all the closed annular frames form a whole, the structural strength and the rigidity of the special vehicle body are improved, the whole special vehicle body participates in load distribution when the special vehicle body is subjected to impact load, the deformation resistance of the special vehicle body is improved, and the special vehicle is guaranteed to have higher strength and higher impact resistance when the special vehicle runs on land or on water.

Has the advantages that: the center of the special vehicle body is deviated, so that the special vehicle has enough stability when running in water.

Drawings

Fig. 1 is a front view of a special vehicle body of the utility model;

fig. 2 is a top view of the special vehicle body of the present invention;

fig. 3 is a side view of the special vehicle body of the present invention;

FIG. 4 is a schematic structural view showing the periphery of the suspension frame reinforcing structure on the special vehicle body of the present invention;

FIG. 5 is a schematic view showing the structure of an X-direction closed ring frame;

FIG. 6 is a schematic view showing the construction of a Y-direction closed ring frame;

FIG. 7 is a schematic structural view showing a Z-direction closed ring frame and a C-shaped connecting beam reinforcement design;

FIG. 8 is a schematic view showing the main stringers being disposed offset from each other;

FIG. 9 is a schematic view showing a detail of a portion of the suspension reinforcement structure of FIG. 4;

fig. 10 is a schematic structural view showing a skin supporting member for supporting a skin on a main frame of a special vehicle body according to the present invention.

Description of reference numerals: 1-deck longitudinal beam, 2-frame longitudinal beam, 3-main longitudinal beam, 4-underframe longitudinal beam, 5-top frame transverse beam, 6-underframe transverse beam, 7-upright column, 8-C type connecting beam, 9-X direction closed ring frame, 10-Y direction closed ring frame, 11-Z direction closed ring frame, 12-horizontal inclined strut, 13-triangle reinforcing member, 14-engine installation area, 15-left upright sheet, 16-right upright sheet, 17-horizontal supporting beam, 18-supporting column, 19-first stage inclined strut, 20-second stage inclined strut, 21-third stage inclined strut, 22-fourth stage inclined strut, 23-deck aisle, 24-vertical inclined strut, 25-skin supporting member, 26-U type connecting beam, 27-locking oil cylinder, 28-suspension lifting frame.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the application, i.e., the embodiments described are only a subset of, and not all embodiments of the application. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present application are described in further detail below with reference to examples.

The utility model discloses a concrete embodiment 1 of special type car automobile body:

the utility model discloses a special type car automobile body is according to appearance size design such as real wheel base, deck height, can satisfy the requirement of traveling of special type car on land, can satisfy the requirement of traveling of special type car in aqueous again, both have traditional body construction, hull structure has again, in this embodiment, the front portion of main frame has set up imitative bow part, this imitative bow part forms the inclined plane, be used for the corresponding covering of more convenient installation, thereby make the anterior structure that forms the bow of automobile body, better broken unrestrained, be favorable to guaranteeing the speed of traveling more, in other embodiments, when insensitive to the requirement of speed, can not necessarily set up imitative bow structure, under this kind of circumstances, the structure that adopts the locomotive also can. The concrete structure is shown in fig. 1, fig. 2 and fig. 3, and comprises a main frame, wherein the main frame is mainly formed by enclosing cross beams, longitudinal beams and upright posts 7, and the cross beams, the longitudinal beams and the upright posts are all made of sectional materials. Defining the length direction of a special vehicle body as an X direction, wherein the X direction is also a front-back direction; the width direction of the special vehicle body is the Y direction, namely the left and right direction; the height direction of the special vehicle body is the Z direction, namely the up-down direction.

In this embodiment, the beams include a top frame beam 5, a deck beam, a main beam, and a bottom frame beam 6, and the deck beams are distributed on the deck layer. The longitudinal beams comprise deck longitudinal beams 1, top frame longitudinal beams 2, main longitudinal beams 3 and bottom frame longitudinal beams 4 which are in one-to-one correspondence with the cross beams, wherein the deck longitudinal beams 1 are distributed on a deck layer. The deck longitudinal beams 1, the top frame longitudinal beams 2, the main longitudinal beams 3 and the bottom frame longitudinal beams 4 are sequentially arranged at intervals along the vertical direction, so that the whole main frame forms a layered structure. As can be seen from fig. 8, the main longitudinal beam 3 is located at a position below the main frame and closer to the underframe longitudinal beam 4, so that the center of gravity of the whole special vehicle is shifted downward, and the stability of the special vehicle during running in water is improved.

The upright posts 7 comprise cross beam upright posts arranged at two ends of the corresponding cross beams and longitudinal beam upright posts arranged at two ends of the corresponding longitudinal beams, the cross beams and the longitudinal beams in the same layer are welded with each other to form a closed ring, and the closed ring is an X-direction closed ring-shaped frame 9 shown in figures 1 and 5. The X is to closing ring frame 9 and having multistage along Z to interval arrangement, and from the drawing, including the level four altogether, be in the formation deck layer of the superiors, be in the formation chassis of lower floor, wherein form upper deck cabin space between deck layer and the roof-rack longeron, the front portion in upper deck cabin space forms the driver's cabin, forms lower floor cabin space between roof-rack longeron and the main longeron, and lower floor cabin space is equipped with the equipment district. The upper and lower corresponding beams and the beam columns are welded to each other to form a closed ring, which is a closed ring frame 10 in the Y direction shown in fig. 2 and 6. The Y-direction closed annular frames 10 are arranged in multiple stages at intervals in the X direction, and as seen in the combined view of fig. 8, the vertical distances between any two adjacent Y-direction closed annular frames 10 are not greatly different, so that when a real vehicle bears impact, the stress of the vehicle body is more uniform, and the situation of local deformation is avoided. The longitudinal beams and the longitudinal beam columns which correspond up and down are welded with each other to form a closed ring, and the closed ring is a Z-direction closed annular frame 11 shown in figures 3 and 7. The Z-direction closed annular frame 11 is provided with a plurality of stages at intervals along the Y direction, and the Z-direction closed annular frame comprises four stages in total. The Y-direction closed annular frame 10 and the Z-direction closed annular frame 11 are both side wall frames.

The closed annular frames in all directions form a full-bearing special vehicle body, so that the structural strength and rigidity of the special vehicle body are improved, the whole special vehicle body participates in load distribution when the special vehicle body is subjected to impact load, stress concentration is avoided, the deformation resistance of the special vehicle body is improved, and the strength requirements of the special vehicle such as running, power and steering are met no matter the special vehicle runs on land or on water.

As shown in fig. 1, 2 and 3, the main frame includes a plurality of diagonal braces, which may be divided into two types, one type being horizontal diagonal braces 12 and the other type being vertical diagonal braces 24. In each of the horizontal diagonal brace 12 and the vertical diagonal brace 24, a part is welded and fixed between the corresponding two cross beams, a part is welded and fixed between the corresponding two longitudinal beams, and a part is welded and fixed between the corresponding two vertical columns 7. The whole main frame strength is guaranteed, and meanwhile the stress deformation of the main frame is reduced. The horizontal inclined strut 12 and the vertical inclined strut 23 are parallel pointed inclined struts, so that the welding contact area between the horizontal inclined strut and the corresponding cross beam or longitudinal beam or vertical column can be increased, and the welding strength is ensured.

In addition, referring to fig. 2 and 3, upright pieces, namely a left upright piece 15 and a right upright piece 16, are enclosed between the vertically corresponding deck longitudinal beam 2 and the corresponding longitudinal beam upright column on both sides of the middle part of the vehicle body in the left-right direction, and the left upright piece 15 and the right upright piece 16 are connected through corresponding cross beams. The area of the middle position 23 in the left-right direction on the main frame is shown as a dotted-line block area in fig. 2, the area between the left upright piece 15 and the right upright piece 16 is below the middle position 23, the position below the area is near the middle of the special vehicle body in the vehicle width direction, the engine mounting area 14 is defined as the position near the middle, and the connecting beams arranged in the engine mounting area 14 are respectively welded and connected with the left upright piece 15 and the right upright piece 16. The connecting beam is of an integral structure and is a C-shaped connecting beam 8, and in other embodiments, a U-shaped connecting beam can be used. The rigidity of the left vertical piece 15 and the right vertical piece 16 is ensured through the connection of the connecting beam and the two vertical pieces. The closed loop frames indicated by the block areas in fig. 2 and 8 form the powertrain reinforcement structure of the utility vehicle. Vertical inclined struts 24 are arranged on two sides of the deck aisle 23, which is equivalent to an inclined force transmission path is added in the Z direction, so that deformation of the Y-direction closed annular frame caused by collision is effectively controlled, and the safety performance of the special vehicle is improved. As shown in fig. 10, a skin support 25 is added at the underframe (main longitudinal beam) and the side wall frame according to parameters such as required skin thickness and welding deformation, and the skin support 25 adopts a 20 × 1.5 square tube in the embodiment to form a frame structure to support the skin in the front-rear direction when the whole vehicle is installed. Of course, in other embodiments, 20 × 20L-shaped members may be adopted to support the skins of the L-shaped members in the front-rear direction during the installation of the entire vehicle, so as to ensure that the special vehicle does not have failure problems such as appearance deformation and weld cracking after entering water, and meet the requirement of stress on water.

In addition, in order to simplify the structure of the main frame, the welding and fixing positions of the cross beams and the corresponding longitudinal beams share one upright post 7, namely the cross beam upright post and the longitudinal beam upright post at the position are the same upright post, so that the using number of the upright posts is saved, and the structure and the quality of the main frame are reduced.

The deck formed when the whole vehicle is installed is of a plane structure, in order to prevent the special vehicle from entering water in the deck in the running process in water, the height of a shelf (not shown) above the deck is increased, and water leakage holes are arranged at four corners of the deck and can discharge water to the cabin body at the bottom.

As shown in fig. 4 and 9, the main frame further includes a reinforcing portion at a suspension mounting position of the main frame, forming a suspension reinforcing structure. Because the impact force of the special vehicle body on the land mainly comes from the land suspension, the reinforcing part can increase the structural strength of the special vehicle suspension, improve the shock resistance of the suspension and ensure the comfort and stability of the special vehicle running on the land. The reinforcing part includes a suspension lifting frame 28 (refer to fig. 9), the suspension lifting frame 28 is also a closed ring frame, and is formed by a Y-direction closed ring frame at a corresponding position in fig. 2, and a lock cylinder 27 for locking the tire after lifting the tire is fixed to the two Y-direction closed ring frames when the whole vehicle is mounted. The vertical rigidity of the suspension lifting frame is ensured by adopting a closed annular structure, so that the lifting of special vehicle tires is facilitated. The reinforcement also comprises U-shaped connecting beams 26, some vertical braces 24 and triangular reinforcements 13 arranged at the overlap of the profiles. The U-shaped connecting beam is used for connecting the two Y-direction closed annular frames in the front and back directions, and the front and back rigidity of the suspension frame lifting frame is improved. The lapping position of the base plates of the suspension lifting frame is in the left and right direction and is welded with titanium pipes to form a structure shaped like a Chinese character 'ri' so as to improve the left and right rigidity of the suspension lifting frame.

As shown in fig. 2, horizontal inclined struts are arranged at the neutral position of the closed ring frame in the X direction of each stage, and the horizontal inclined struts comprise a first-stage inclined strut 19, a second-stage inclined strut 20, a third-stage inclined strut 21 and a fourth-stage inclined strut 22, and adjacent two stages of inclined struts are connected end to form a zigzag structure in the X direction. In this embodiment, the first-stage diagonal brace 19 is inclined to the left rear, the second-stage diagonal brace 20 is inclined to the right rear, the third-stage diagonal brace 21 is inclined to the left rear, and the fourth-stage diagonal brace 22 is inclined to the right rear, so that a W-shaped continuous structure is integrally formed, impact load borne by a vehicle body of the special vehicle can be dispersed, and the running reliability of the special vehicle can be ensured. The W-shaped continuous structure is specifically corresponding to a deck layer on the special vehicle and upper and lower trusses at the bottom of the special vehicle, and the W-shaped continuous structure corresponding to the upper and lower trusses at the bottom of the special vehicle is positioned in a vertical plane. In other embodiments, an "M" shaped coherent structure may also be used.

The main frame further comprises a support portion which comprises horizontal support beams 17 and support columns 18, as shown in fig. 1 and 2, a part of the horizontal support beams 17 is arranged between two corresponding cross beams in the adjacent two stages of the Y-direction closed ring frames 10, and a part of the horizontal support beams is arranged between two corresponding longitudinal beams in the X-direction closed ring frame 9. The supporting columns 18 are parallel to the vertical columns 7 and connected between the main longitudinal beams 7 and the underframe longitudinal beams 4. The part at the most front side in fig. 1 is the bow of the special vehicle body, and the bow has a certain inclination angle so that the special vehicle can run in water conveniently.

Due to the influence of factors such as sea wind waves, seawater corrosion and water navigational speed, the traditional steel material is difficult to meet the performance requirements of light weight, good strength, corrosion resistance and the like. Therefore, in this embodiment, the main frame is made of titanium alloy with a density of 4.5g/cm³About, only 60% of steel, but intensity, corrosion resistance, low temperature performance etc. all are superior to steel, possess light in weight, corrosion-resistant (do not need special independent anticorrosive treatment), advantage such as intensity is good. The ratio of some properties between different grades of steel and different grades of titanium alloy materials is shown in table 1:

TABLE 1

Meanwhile, in the embodiment, the specification (length, width and wall thickness) is reasonably selected according to the strength requirements of each part of the special vehicle body by combining the CAE analysis result, and the thin-wall steel in a shape like Chinese character 'ri' can be used for replacing the profiles such as the thick-wall square tube or the rectangular tube and the like in the specific use process, so that the weight of the special vehicle body is further reduced, the light weight of the whole vehicle is realized, and the foundation is laid for improving the water navigational speed.

The utility model discloses a special type car automobile body has following characteristics: (1) the special vehicle body takes titanium alloy as a base material and has the characteristics of light weight, corrosion resistance, high strength and the like; (2) the special vehicle body adopts a closed annular frame structure, and has strong deformation resistance, high running stability and high safety performance; (3) the special vehicle body is built by adopting sectional materials to form a full-bearing structure, the structure can be flexibly adjusted, the requirement of a plurality of interfaces is met by a structure with the lightest weight, and a high-strength carrier is provided; (4) the fuel economy of the whole vehicle is improved, the energy consumption is reduced by 5 to 8 percent, and meanwhile, the braking distance is shortened; (5) all parts of the special vehicle body are connected in a welding mode, and no relative movement exists among the parts, so that the noise of the whole vehicle can be effectively reduced, and the comfort is improved; (6) the height of the main longitudinal beam is reasonably reduced by combining the installation of components such as an engine and the like, the gravity center of the whole vehicle is favorably reduced, and the safety and the stability on water are improved.

Overall, the utility model discloses a special type car automobile body utilizes between crossbeam and the longeron, between crossbeam and the stand, the closed ring frame who corresponds formation between longeron and the stand to realize the full bearing structure design of automobile body, with titanium alloy material's organic combination, has effectively solved special type car weight hard control, corrosion resisting property is poor, structural strength is not good scheduling problem, on the basis of guaranteeing special type car automobile body intensity, has compromise advantages such as the structure is light, corrosion-resistant, can satisfy the various performance demands of the complicated operating mode of special type car.

The utility model discloses an embodiment 2 of special type car automobile body:

this embodiment is different from embodiment 1 described above in that, in this embodiment, the main longitudinal beams are disposed near the middle of the main frame as long as the stability requirement of the special vehicle running in water is satisfied.

The utility model discloses an embodiment 3 of special type car automobile body:

the difference between this embodiment and the above embodiment 1 is that, in this embodiment, the X-direction, Y-direction, and Z-direction closed ring frames are only provided in two stages according to the actual design size of the special vehicle body, and the structure of the special vehicle body is the simplest.

Of course, in other embodiments, each of the closed loop frames may be designed in different orders of magnitude according to actual needs.

The utility model discloses an embodiment 4 of special type car automobile body:

the difference between this embodiment and embodiment 1 is that in this embodiment, the columns at the joints between the cross beams and the longitudinal beams are not shared, and at this time, the corresponding longitudinal beam columns and cross beam columns are welded to each other, and although one column is often used, the structural strength of the main frame is ensured as a whole.

The utility model discloses an embodiment 5 of special type car automobile body:

this embodiment is different from embodiment 1 described above in that, in this embodiment, in the case where the structural strength of each profile is ensured to meet the driving strength requirements of the special vehicle on land and in water, the reinforcement portion is not provided, so that the structure of the vehicle body of the special vehicle is simplified to the greatest extent.

In other embodiments, the supporting part is not arranged under the condition that the structural strength of each section bar meets the driving strength requirement of the special vehicle on land and in water, so that the structure of the vehicle body of the special vehicle is simplified to the greatest extent.

The utility model discloses a concrete embodiment of special type car:

the special vehicle comprises a vehicle body, and the structure of the vehicle body can adopt the structure of the vehicle body of the special vehicle in any one embodiment of the vehicle body of the special vehicle, and the description is omitted.

The above description is only a preferred embodiment of the present application, and not intended to limit the present application, the scope of the present application is defined by the appended claims, and all changes in equivalent structure made by using the contents of the specification and the drawings of the present application should be considered as being included in the scope of the present application.

Claims

1. The utility model provides a special type car automobile body which characterized in that, includes the main frame, the main frame includes:

2. The utility vehicle body of claim 1, wherein said primary side rails are located at a lower position on said main frame.

3. The special vehicle body according to claim 1, wherein closed rings defined between the longitudinal beams and the cross beams on the same layer are arranged at intervals in the vertical direction, closed rings defined between the cross beams and the cross beam columns corresponding to the upper and lower layers are arranged at intervals in the front-rear direction, and closed rings defined between the longitudinal beams and the longitudinal beam columns corresponding to the upper and lower layers are arranged at intervals in the left-right direction.

4. The special vehicle body according to any one of claims 1-3, wherein the joints of the cross beams and the corresponding longitudinal beams share a single upright.

5. The special vehicle body of any one of claims 1-3, wherein the main frame further comprises a reinforcement portion at a suspension mounting location of the main frame for increasing the strength of the special vehicle suspension.

6. The special vehicle body according to any one of claims 1 to 3, wherein two deck longitudinal beams positioned in the middle in the left-right direction and corresponding longitudinal beam columns enclose vertical pieces, the two vertical pieces are connected through corresponding cross beams, an engine mounting area is formed in a lower area between the two vertical pieces, and a connecting beam arranged in the engine mounting area is connected with the vertical piece on the corresponding side.

7. The special vehicle body as claimed in any one of claims 1 to 3, wherein a plurality of diagonal braces are arranged at a neutral position between the cross beam and the longitudinal beam on the same layer, and the diagonal braces are connected end to form a zigzag structure.

8. The utility vehicle body of any of claims 1-3, wherein the main frame further comprises a support portion including a support post disposed between the main rail and the bottom rail.

9. The special vehicle body according to any one of claims 1-3, wherein the main frame is made of a titanium alloy material.

10. The utility vehicle body of any one of claims 1-3, wherein the main frame is provided with skin supports on the left, right sides and/or bottom.

11. Special purpose vehicle, comprising a body, characterized in that the body is according to any one of claims 1-10.