CN202827800U - Passenger car body framework structure - Google Patents

Abstract

The utility model discloses a skeleton structure of a passenger car body. An annular closed beam (1) is provided. The annular closed beam (1) forms an integral annular structure on the transverse section of the vehicle body of the passenger car. The roof longitudinal beam (2), side window upper beam (3), side window lower beam (6), warehouse door upper beam (8) and skirt beam (9) are fastened and connected. By adopting the above technical scheme, an integral load-bearing structural unit is formed through the closed-loop structure, which can enhance the strength of the frame structure and make the distribution of the load of the passenger car more uniform; under the condition of meeting the same strength requirements, the weight of the body frame can be effectively reduced , Improve the fuel economy of the vehicle.

Description

Skeleton structure of a passenger car body

technical field

The utility model belongs to the technical field of passenger car body structure. Specifically, the utility model relates to a skeleton structure of a passenger car body. the

Background technique

At present, the body frame structure of commercial buses generally adopts the roof frame, the left side frame and the right side frame as a whole, and then connects them to form the overall structure of the body. The disadvantage of this structure is that the overall strength is not high enough, and the weight of the body frame is relatively large. the

Contents of the invention

The utility model provides a frame structure of a passenger car body, which aims at improving the structural strength of the passenger car body. the

In order to achieve the above object, the technical scheme that the utility model takes is:

The skeleton structure of the passenger car body provided by the utility model includes roof longitudinal beams, side window upper beams, side window lower beams, hatch upper beams, skirt beams, and underframes. The bus body skeleton structure is also provided with a ring closure Beam, the annular closed beam is formed on the transverse section of the vehicle body of the passenger car to form an integral annular structure, and the roof longitudinal beam, side window upper beam, side window lower beam, hatch upper beam , Skirt beam fastening connection. the

The annular closed beam is a pipe with a rectangular section. the

On the side of the passenger car body frame, between the lower beam of the side window and the upper beam of the hatch door, a middle column, a first side wall brace and a second side wall brace are arranged, and the middle column and the side wall The lower beam of the window and the upper beam of the hatch door are vertical, and the two ends of the middle column are respectively fastened and connected with the lower beam of the side window and the upper beam of the hatch door; The two ends are respectively fastened and connected to the rectangular diagonal formed by the side window lower beam, the hatch upper beam, the middle column and the ring closed beam. the

The frame structure of the passenger car body is provided with a horizontal closed-loop crossbeam, the closed-loop crossbeam is arranged above the underframe, and the two ends of the closed-loop crossbeam are fastened to the ring-shaped closed beam . the

The bottom of the underframe is fastened to the lower end of the ring-shaped closed beam through the first underframe connecting beam and the second underframe connecting beam respectively. the

The frame structure of the bus body is provided with connecting braces, and the two ends of the connecting braces are respectively fastened and connected with the side columns of the underframe and the ends of the closed ring beams. the

The frame structure of the passenger car body is provided with a first connecting diagonal brace and a second connecting diagonal brace, and the two ends of the first connecting diagonal brace and the second connecting diagonal brace are respectively connected to the side columns and the closed ring of the underframe. The ends of the beams are fastened. the

The utility model adopts the above-mentioned technical scheme, and forms an integral load-bearing structural unit through a closed loop structure, which can enhance the strength of the skeleton structure and make the distribution of the load of the passenger car more uniform; The weight of the body frame can improve the fuel economy of the vehicle; the appearance radian of the ring-shaped closed beam can be adjusted to meet the needs of different bus shapes without changing the overall structure and force model of the frame to achieve modular design; The distance between adjacent ring-shaped closed beams and the number of ring-shaped beams can be adjusted to meet the design and layout requirements of vehicles with different lengths without changing the overall structure and force model of the skeleton. the

Description of drawings

The following is a brief description of the contents expressed in the drawings of this manual and the marks in the drawings:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic view of direction A in Fig. 1 . the

Marked in the figure as:

1. Ring closed ring, 2. Roof longitudinal beam, 3. Side window upper beam, 4. First side wall brace, 5. Middle column, 6. Side window lower beam, 7. Second side wall brace, 8. The upper beam of the cabin door, 9. The skirt beam, 10. The first connecting brace, 11. The closed ring beam, 12. The bottom frame, 13. The second connecting diagonal brace, 14. The first connecting beam of the bottom frame, 15 , The second underframe connecting beam. the

Detailed ways

Next, with reference to the accompanying drawings, through the description of the embodiments, the specific implementation of the utility model will be further described in detail, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solutions of the utility model . the

The structure of the utility model expressed in Fig. 1 and Fig. 2, the utility model is a skeleton structure of a passenger car body, including roof longitudinal beams 2, side window upper beams 3, side window lower beams 6, hatch upper beams 8 , skirt beam 9, chassis 12. the

In order to solve the problems existing in the prior art and overcome its defects, and realize the purpose of the invention to improve the structural strength of the bus body, the technical scheme adopted by the utility model is:

As shown in Fig. 1 and Fig. 2, the framework structure of the passenger car body of the present invention is provided with an annular closed beam 1, and the described annular closed beam 1 forms an integral annular structure on the transverse section of the vehicle body of the passenger car. The roof longitudinal beam 2, the side window upper beam 3, the side window lower beam 6, the hatch upper beam 8, and the skirt beam 9 are fastened and connected. the

The annular closed beam 1 is a pipe with a rectangular section. the

The utility model is processed into an integral annular beam through a rectangular tube, and connects the relevant structural parts on the bus body frame into a closed, integral force-bearing structural unit, and the structural unit is then connected to the passenger car through the corresponding structural connectors. The chassis skeleton is connected to form a load-bearing new bus body skeleton structure unit. the

On the side of the passenger car body frame described above, between the side window lower beam 6 and the cabin door upper beam 8, a middle column 5, a first side wall brace 4, and a second side wall brace 7 are set. The column 5 is perpendicular to the lower beam 6 of the side window and the upper beam 8 of the hatch door, and the two ends of the middle column 5 are respectively fastened to the lower beam 6 of the side window and the upper beam 8 of the hatch door; The two ends of the side wall brace 4 and the second side wall brace 7 respectively fasten and connect the rectangle diagonally formed by the side window lower beam 6 , the hatch upper beam 8 , the middle column 5 and the annular closed beam 1 . the

Through the above structural scheme, a triangular connection structure is formed on the side of the vehicle body to increase stability and strengthen the side of the vehicle body. the

The skeleton structure of the passenger car body described in the utility model is provided with a horizontal closed loop crossbeam 11, and the described closed loop crossbeam 11 is arranged on the top of the described chassis 12, and the two ends of the described closed loop crossbeam 11 are connected with the described closed loop crossbeam 11. The ring closed beam 1 is tightly connected. the

Through this structural solution, the ring-shaped closed beam 1 forms a closed structure, further improving its structural strength. the

The bottom of the underframe 12 is fastened to the lower end of the annular closed beam 1 through the first underframe connecting beam 14 and the second underframe connecting beam 15 respectively. the

The above-mentioned passenger car body frame structure is provided with a first connecting diagonal brace 10 and a second connecting diagonal brace 13. The end of the side column and the closed ring beam 11 are fastened and connected. the

The above-mentioned structural units are connected with the bus chassis frame through corresponding structural connectors, and finally form a load-bearing new type bus body frame structural unit. the

In summary, compared with the prior art, the utility model has the following characteristics:

1. By forming a closed loop structure to form an integral load-bearing structural unit, the strength of the skeleton structure can be enhanced, and the load of the passenger car can be distributed more evenly;

2. Under the same strength requirements, it can effectively reduce the weight of the body frame and improve the fuel economy of the vehicle;

3. By adjusting the appearance radian of the ring-shaped closed beam to meet the needs of different bus shapes without changing the overall structure and force model of the skeleton, the design modularization is realized;

4. By adjusting the distance between adjacent ring-shaped closed beams and the number of ring-shaped beams, the design and layout requirements of vehicles with different lengths can be met without changing the overall structure and force model of the skeleton. the

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited by the above-mentioned methods, as long as various insubstantial improvements are made by adopting the method concept and technical solutions of the utility model, or Directly applying the ideas and technical solutions of the utility model to other occasions without improvement is within the protection scope of the utility model. the

Claims (6)

1. body framework structure of coach, comprise roof rai (2), side window upper beam (3), side window underbeam (6), hatch door upper beam (8), shirt rim beam (9), underframe (12), it is characterized in that: described body framework structure of coach also is provided with annular closed beam (1), the closed beam of described annular (1) is on the horizontal section of the vehicle body of described passenger vehicle, form the loop configuration of an integral body, described roof rai (2), side window upper beam (3), side window underbeam (6), hatch door upper beam (8), shirt rim beam (9) are fastenedly connected.

2. according to body framework structure of coach claimed in claim 1, it is characterized in that: the closed beam of described annular (1) is the tubing of square-section.

3. according to body framework structure of coach claimed in claim 1, it is characterized in that: the side of described bus body skeleton, put the beams in place between (8) at side window underbeam (6) and hatch door, if middle part column (5), the first gusset diagonal brace (4) and the second gusset diagonal brace (7), described middle part column (5) and described side window underbeam (6), hatch door put the beams in place (8) vertical, the two ends of described middle part column (5) are fastenedly connected with side window underbeam (6), hatch door upper beam (8) respectively; The two ends of described the first gusset diagonal brace (4) and the second gusset diagonal brace (7) are fastenedly connected the rectangle diagonal angle that described side window underbeam (6), hatch door upper beam (8), middle part column (5) and annular closed beam (1) form respectively.

4. according to body framework structure of coach claimed in claim 1, it is characterized in that: described body framework structure of coach arranges the closed ring crossbeam (11) of level, described closed ring crossbeam (11) is located at the top of described underframe (12), the two ends of described closed ring crossbeam (10) are fastenedly connected with the closed beam of described annular (1).

5. according to body framework structure of coach claimed in claim 1, it is characterized in that: the bottom of described underframe (12) is fastenedly connected with the lower end of the closed beam of described annular (1) by the first under-frame connected beam (14), the second under-frame connected beam (15) respectively.

6. according to body framework structure of coach claimed in claim 1, it is characterized in that: described body framework structure of coach is established first and is connected diagonal brace (10), second and connect diagonal brace (13), and described first connects diagonal brace (10) and be connected the two ends of connection diagonal brace (13) and be fastenedly connected with the heel post of described underframe (12) and the end of closed ring crossbeam (11) respectively.

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