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CN-224211142-U - Body structure of lightweight racing car

CN224211142UCN 224211142 UCN224211142 UCN 224211142UCN-224211142-U

Abstract

The utility model relates to the technical field of racing cars, in particular to a body structure of a lightweight racing car, which comprises a frame body, wherein a front cabin fixing frame and a rear cabin fixing frame are respectively and fixedly arranged at two ends of the frame body, a seat frame is arranged in the middle of the frame body, the front cabin fixing frame, the rear cabin fixing frame and the seat frame are all arranged on a chassis, the seat frame comprises a bent pipe beam, a seat bearing frame and a straight beam, upright rods are respectively and fixedly arranged at two sides of the seat frame, which are close to one end of the front cabin fixing frame, respectively, an instrument supporting beam is arranged at one end of the seat frame, which is close to the front cabin fixing frame, and an anti-rolling frame is arranged at one end of the seat frame, which is close to the rear cabin fixing frame. The light-weight racing car body structure can realize the light weight of a car body and ensure the high strength, the high rigidity and the safety protection performance of the racing car.

Inventors

  • LIN SHENGCUN
  • ZHANG ZIHAO
  • Ding Suao
  • Yang Xuanhui
  • Wang Gengdong
  • DENG CHENGXIANG
  • HUANG JIWEN

Assignees

  • 柳州职业技术大学

Dates

Publication Date
20260508
Application Date
20250630

Claims (8)

  1. 1. The light-weight racing car body structure is characterized by comprising a frame body (1), wherein a front cabin fixing frame (11) and a rear cabin fixing frame (12) are respectively fixedly arranged at two ends of the frame body (1), a seat frame (2) is arranged in the middle of the frame body (1), and the front cabin fixing frame (11), the rear cabin fixing frame (12) and the seat frame (2) are all arranged on a chassis (101); The seat frame (2) comprises a bent pipe beam (21) and a seat bearing frame (22), two ends of the bent pipe beam (21) are fixedly connected with two sides, close to one end of the cabin fixing frame (11), of the frame body (1), the middle part of the bent pipe beam (21) is fixedly connected with one side of the seat bearing frame (22), and two ends, far away from one side of the bent pipe beam (21), of the seat bearing frame (22) are fixedly connected with two sides, close to one end of the rear cabin fixing frame (12), of the frame body (1) through straight beams (23) respectively; Two sides of the seat frame (2) close to one end of the front cabin fixing frame (11) are fixedly provided with upright rods (24) respectively, one end of each upright rod (24) is fixedly connected with one end corresponding to the bent pipe beam (21) through a short cross beam (241), and one side of the other end of each upright rod (24) is fixedly connected with the front cabin fixing frame (11); an instrument support beam (3) is arranged at one end, close to the front cabin fixing frame (11), of the seat frame (2); The anti-rolling seat is characterized in that an anti-rolling frame (4) is arranged at one end, close to the rear cabin fixing frame (12), of the seat frame (2), two ends of the anti-rolling frame (4) are fixedly connected with two ends, far away from the seat bearing frame (22), of the straight beams (23), two sides of the anti-rolling frame (4) are fixedly connected with the rear cabin fixing frame (12) through supporting rods (41), and one side of the anti-rolling frame (4) is fixedly connected with the rear cabin fixing frame (12).
  2. 2. The light-weight racing car body structure according to claim 1, wherein two ends of the instrument support beam (3) are fixedly connected with the end faces of two upright rods (24) at one end far away from the bent pipe beam (21).
  3. 3. A body structure of a light-weight racing car as set forth in claim 2, characterized in that said instrument support beam (3) is of an arch-like structure, and said instrument support beam (3) is bent 50 ° -80 ° toward said front deck mount (11).
  4. 4. The light-weight racing car body structure according to claim 1, wherein guardrails (5) are respectively arranged on two sides of the middle of the frame body (1), and two ends of each guardrail (5) are fixedly connected with the anti-rolling frame (4) and the upright rods (24).
  5. 5. The light-weight racing car body structure according to claim 1, wherein the seat carrying frame (22) is provided with a seat (25), mounting pieces (251) are arranged on two sides of the seat carrying frame (22), one end of each mounting piece (251) is fixedly connected with the seat carrying frame (22), and the other end of each mounting piece is fixedly connected with the seat (25).
  6. 6. The light-weight racing car body structure according to claim 5, wherein a seat support beam (252) is arranged on the back of the seat (25), one end of the seat support beam (252) is fixedly connected with the seat bearing frame (22), and the other end of the seat support beam is fixedly connected with the seat (25).
  7. 7. The light-weight racing car body structure according to claim 1, characterized in that the upright (24) and the anti-rolling frame (4) are fixedly connected with the chassis (101) through a reinforcing plate (6); The front cabin fixing frame (11), the rear cabin fixing frame (12), the vertical rods (24) and the bottom of the anti-rolling frame (4) are fixedly provided with connecting shafts (7), and the connecting shafts (7) are sleeved with two sleeves (71) in a threaded manner, so that the two sleeves (71) clamp the chassis (101).
  8. 8. The light-weight racing car body structure according to claim 1, wherein wheels (8) are arranged on two sides of the front cabin fixing frame (11) and the rear cabin fixing frame (12), and the wheels (8) are respectively connected with the corresponding front cabin fixing frame (11) and rear cabin fixing frame (12) through hanging parts (81).

Description

Body structure of lightweight racing car Technical Field The utility model belongs to the technical field of racing vehicles, and particularly relates to a body structure of a lightweight racing vehicle. Background In the field of racing design, body structures play a critical role. It is mainly composed of outer covers, beams, struts and structural reinforcements, which together take on the task of bearing and transmitting various loads. The design of the body structure is directly related to the safety performance, endurance strength, rigidity and modal performance of the racing car, and has decisive influence on the weight and manufacturing cost of the body. Particularly in the field of new energy light-weight racing vehicles, light-weight design is a key for improving comprehensive performance of the racing vehicles. The weight reduction not only can reduce the energy consumption and improve the energy utilization efficiency, but also can further improve the dynamic performance of the racing car by optimizing the frame structure (for example, reducing the number of unnecessary steel pipes, adjusting the wall thickness of the steel pipes and the like). However, while pursuing weight reduction, it is necessary to ensure that the racing car meets the requirements of event regulations and actual conditions, and particularly, safety protection and collision resistance cannot be compromised. The frame is used as a key structural component of the racing car, and has the advantages of specific design targets of high strength, high rigidity, good comfort and extremely light weight. As a precursor of new energy automobiles, the lightweight design of the body structure of electric racing automobiles faces more unprecedented challenges. On the premise of ensuring the safety performance of the racing car, the light weight of the car body structure is realized, and the problem to be solved is urgent at present. At present, although some attempts for lightweight design exist, in the conventional racing car body structural design, the problems of overweight structural weight, insufficient specific stiffness, poor buffering and energy absorbing effects and the like exist, so that the overall performance of the racing car is influenced, the energy consumption and the raw material consumption are increased, the further development of new energy racing car technology is limited, and various defects exist as follows: 1. Conventional racing car seat load-bearing structures often rely on cross and stringers in the middle of the chassis to carry the weight of the seat and the driver. The design mode easily causes stress concentration in the middle of the chassis under severe road conditions, so that cracks can be generated, and the running safety of the whole vehicle is affected. 2. The traditional racing car instrument supporting beam mostly adopts a vertical structure, so that the movement space of a driver is limited by the design, particularly, the foot movement of a driver is easy to be blocked when the driver escapes in emergency, and the escape difficulty is increased. Meanwhile, when the vertical instrument support beam is severely jolted in a racing car, equipment on an instrument board is easy to drop, and running safety is threatened. 3. Some racing car body structures are still too heavy and have low specific stiffness, so that the aim of light weight can not be achieved while the safety is ensured. In addition, poor buffering and energy absorbing effects are also a great difficulty in current lightweight designs. These problems not only limit the improvement of racing performance, but also increase energy consumption and raw material consumption, which is unfavorable for the sustainable development of new energy racing technology. 4. In terms of the local structure of the vehicle body, the conventional design is often too conservative, for example, the structural design of the diagonal bracing area of the roll cage is too complex, and unnecessary weight is increased. The number of side beams in the guardrail structures at the two sides of the cockpit is also larger, and the weight of the whole automobile is increased. 5. The traditional connection mode of the vehicle body upright post and the chassis longitudinal beam or the chassis transverse beam also has defects. The force transmitted by the upright post of the vehicle body is often concentrated and absorbed by a certain chassis cross beam or a longitudinal beam, so that the stress concentration and local fracture of the part are easy to occur, and the running safety of the whole vehicle is influenced. Disclosure of utility model In order to solve the problems, the utility model provides a body structure of a lightweight racing car, which can realize the weight reduction of the body and ensure the high strength, the high rigidity and the safety protection performance of the racing car. In order to achieve the above purpose, the technical scheme adopted by the u