Search

CN-121973571-A - Trailer device and vehicle

CN121973571ACN 121973571 ACN121973571 ACN 121973571ACN-121973571-A

Abstract

The invention relates to the technical field of automobile manufacturing, and discloses a trailer device and a vehicle. The two ends of the stiffening beam along the length direction are respectively connected with the two ends of the traction beam, and a second traction piece connecting part is arranged between the two ends of the stiffening beam along the length direction; the traction piece is connected with the first traction piece connecting part and the second traction piece connecting part respectively, and the invention can solve the problem that the structural stress stability is insufficient and the structural durability of the traction beam body and the rear part of the vehicle body is affected.

Inventors

  • JIANG GAOSONG
  • WANG LEI
  • ZHANG JUN
  • GOU LIGANG
  • CHEN GAOCHUN
  • BAI JIAWEI
  • JIANG ZIHAN
  • WANG TUN
  • LI XIAOLEI

Assignees

  • 浙江吉利控股集团有限公司
  • 吉利汽车研究院（宁波）有限公司

Dates

Publication Date
20260505
Application Date
20260323

Claims (14)

  1. 1. A trailer arrangement, comprising: a first traction piece connecting part (101) is arranged between two ends of the traction beam (1) along the length direction; the two ends of the stiffening beam (2) along the length direction are respectively connected with the two ends of the traction beam (1), and a second traction piece connecting part (201) is arranged between the two ends of the stiffening beam (2) along the length direction; and the traction piece (3) is respectively connected with the first traction piece connecting part (101) and the second traction piece connecting part (201).
  2. 2. The trailer device according to claim 1, wherein the draft sill (1) comprises a first load carrying section (102), a second load carrying section (103) and a third load carrying section (104) in sequence along its length direction, one end of the first load carrying section (102) and one end of the third load carrying section (104) are connected to opposite ends of the second load carrying section (103), respectively, and the other end of the first load carrying section (102) and the third load carrying section (104) have a distance h from the second load carrying section (103) in a first direction (X); Wherein the first traction element connection (101) is arranged on the second bearing section (103).
  3. 3. The trailer arrangement according to claim 2, wherein a first angle a is formed between the reinforcement beam (2) and the first load-carrying section (102), and a second angle b is formed between the reinforcement beam (2) and the third load-carrying section (104); wherein, the first included angle a and the second included angle b are acute angles.
  4. 4. A trailer arrangement according to any one of claims 2-3, wherein the reinforcement beam (2) comprises: a tubular beam (202), wherein the second traction piece connecting part (201) is arranged between two ends of the tubular beam (202) along the length direction; The first connecting piece (203) is connected with the second traction piece connecting part (201), and the first connecting piece (203) is connected with the traction piece (3).
  5. 5. The trailer arrangement according to claim 4, wherein the reinforcement beam (2) further comprises: A pair of second connectors (204) respectively provided at both ends of the tubular beam (202) in the longitudinal direction thereof; And two ends of the traction beam (1) are provided with a pair of third connecting pieces (105), and the second connecting pieces (204) and the third connecting pieces (105) are respectively connected in one-to-one correspondence.
  6. 6. The trailer device according to claim 5, wherein the third connecting member (105) sequentially comprises a first connecting portion (1051), a second connecting portion (1052) and a third connecting portion (1053) along the length direction of the traction beam (1), one ends of the first connecting portion (1051) and the third connecting portion (1053) are respectively connected to two opposite ends of the second connecting portion (1052), connecting holes are formed in the other ends of the first connecting portion (1051) and the third connecting portion (1053), the first bearing section (102) penetrates through two connecting holes of one second connecting member (204), the third bearing section (104) penetrates through two connecting holes of the other second connecting member (204), and the second connecting member (204) is connected with the first connecting portion (1051) and/or the third connecting portion (1053).
  7. 7. The trailer arrangement according to claim 6, wherein the third connection (105) further comprises: Fourth connecting portion (1055), with second connecting portion (1052) are connected, first connecting portion (1051) with third connecting portion (1053) all with second connecting portion (1052) are the contained angle setting, just first connecting portion (1051) with third connecting portion (1053) all are located one side of second connecting portion (1052), fourth connecting portion (1055) are located another opposite side of second connecting portion (1052), fourth connecting portion (1055) are connected with automobile body longeron (4).
  8. 8. The trailer device according to claim 4, wherein the cross section of the first connecting member (203) perpendicular to the first direction (X) is of a U-shaped structure, wherein the two opposite side walls of the first connecting member (203) are provided with notches, and wherein the second traction member connecting portion (201) passes through the notches.
  9. 9. The trailer device according to claim 5, wherein the second connecting member (204) sequentially comprises a fifth connecting portion (2041) and a sixth connecting portion (2042) along the direction from the reinforcing beam (2) to the traction beam (1), the fifth connecting portion (2041) and the sixth connecting portion (2042) are connected, the fifth connecting portion (2041) and the sixth connecting portion (2042) form an L-shaped structure, the fifth connecting portion (2041) of a pair of the second connecting members (204) are respectively connected with both ends of the tubular beam (202), and the sixth connecting portion (2042) of a pair of the second connecting members (204) are connected with the other ends of the first bearing section (102) and the third bearing section (104).
  10. 10. A vehicle, characterized by comprising: a body side member (4); The trailer arrangement according to any one of claims 1 to 9, wherein a fourth connection (1055) of the trailer arrangement is connected to the body rail (4).
  11. 11. The vehicle of claim 10, further comprising: The first mounting piece (6) sequentially comprises a first abutting part (601) and a first mounting part (602) along the length direction of the longitudinal beam (4), the first abutting part (601) and the first mounting part (602) are arranged at an included angle, the first abutting part (601) abuts against a second connecting part (1052) of the trailer device, and the first mounting part (602) is connected with the longitudinal beam (4); The first mounting pieces (6) are arranged in a plurality, the first mounting pieces (6) are sequentially distributed along the circumferential direction of the longitudinal beam (4), the first abutting portions (601) are sequentially connected, and the first mounting portions (602) are sequentially connected.
  12. 12. The vehicle of claim 11, further comprising: The second mounting piece (7), the length direction of automobile body longeron (4) includes second installation department (701) and third installation department (702) in proper order, second installation department (701) with third installation department (702) are the contained angle setting, second installation department (701) with automobile body longeron (4) are connected, third installation department (702) are connected with automobile body back wall (5).
  13. 13. The vehicle according to claim 11, characterized in that the body side member (4) is provided with a cavity (403), a first mounting hole (401) and a second mounting hole (402) are provided in order along the length direction of the body side member (4) on the outer side wall of the body side member (4), a communication hole (6021) is provided on the first mounting portion (602), the communication hole (6021) communicates with the second mounting hole (402), and a fourth connecting portion (1055) of the trailer device is provided in the cavity (403); The fourth connecting portion (1055) is connected with the vehicle body longitudinal beam (4) through a first fastener inserted in the first mounting hole (401), and the fourth connecting portion (1055) is connected with the first mounting portion (602) through a second fastener inserted in the second mounting hole (402) and the communication hole (6021).
  14. 14. The vehicle of claim 10, further comprising: the rear protection structure is arranged on one side, far away from the body longitudinal beam (4), of the tube beam (202) of the trailer device, and the tube beam (202) is matched with the rear protection structure in shape.

Description

Trailer device and vehicle Technical Field The invention relates to the technical field of automobile manufacturing, in particular to a trailer device and a vehicle. Background At present, most of the tug hooks of passenger cars in the market are usually manually exposed for a long time, so that the attractiveness of the car is affected, and the car is easily damaged greatly when a rear collision occurs, so that the electric tug hooks are gradually applied. The electric trailer hook can be stored in the vehicle body in a non-use state, so that the attractiveness and the safety are improved. However, in order to meet the movement envelope space required for retraction and extension, the electric trailer hook is generally designed into a U-shaped (U-shaped bent) structure so as to avoid the internal components of the vehicle body. The structure causes the traction rod to form a longer cantilever during traction, and generates additional bending moment, so that the connecting structure between the traction rod and the longitudinal beam of the vehicle body bears excessive load, and insufficient strength and fatigue damage are easily caused. Disclosure of Invention The invention provides a trailer device and a vehicle, which are used for solving the problem that the structural durability of a traction beam body and the rear part of a vehicle body is affected due to insufficient structural stress stability. In a first aspect, the present invention provides a trailer arrangement comprising: a first traction piece connecting part is arranged between two ends of the traction beam along the length direction; a first traction piece connecting part is arranged between two ends of the traction beam along the length direction; the two ends of the reinforcing beam along the length direction are respectively connected with the two ends of the traction beam, and a second traction piece connecting part is arranged between the two ends of the reinforcing beam along the length direction; and the traction piece is respectively connected with the first traction piece connecting part and the second traction piece connecting part. The invention has the beneficial effects that the traction piece is arranged between the traction beam and the reinforcement beam, the two ends of the reinforcement beam are respectively connected with the two ends of the traction beam, and the traction piece is respectively connected with the first traction piece connecting part and the second traction piece connecting part to form a stable supporting frame. The structure can disperse and transfer the dragging load borne by the traction piece to the two ends of the traction beam through the stiffening beam, shortens the arm of force of load transfer, and effectively reduces the bending moment and stress concentration at the joint of the traction beam and the vehicle body, thereby improving the overall bearing capacity, structural rigidity and fatigue resistance of the trailer device and solving the problem of connection vulnerability of the existing electric trailer hook caused by overlong cantilever. In an alternative embodiment, the traction beam sequentially includes a first bearing section, a second bearing section and a third bearing section along the length direction thereof, one ends of the first bearing section and the third bearing section are respectively connected to two opposite ends of the second bearing section, and the other ends of the first bearing section and the third bearing section have a distance h from the second bearing section in the first direction; the first traction piece connecting part is arranged on the second bearing section. The traction beam has the beneficial effects that the traction beam is designed into a Chinese character 'ji' -shaped structure with the first bearing section, the second bearing section and the third bearing section, and the first bearing section, the third bearing section and the second bearing section form a space, so that a necessary avoiding space is provided for the movement of the electric traction coupler, and the folding and unfolding envelope requirement of the electric traction coupler is met. Meanwhile, the traction piece connecting part is arranged on the second bearing section, so that the traction load can directly act on the central area of the U-shaped structure, the force flow path is further optimized by combining the support of the stiffening beam, and the mechanical rationality of the structure is improved on the premise of ensuring the avoidance function. In an alternative embodiment, a first included angle a is formed between the reinforcing beam and the first bearing section, and a second included angle b is formed between the reinforcing beam and the third bearing section; wherein, the first included angle a and the second included angle b are acute angles. The traction beam has the beneficial effects that the included angles formed between the first bearing section and the t