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CN-224210838-U - Semitrailer running gear with drive bridge

CN224210838UCN 224210838 UCN224210838 UCN 224210838UCN-224210838-U

Abstract

The utility model discloses a semi-trailer running mechanism with a drive axle, and belongs to the technical field of trailers. The utility model relates to a connecting frame and a plurality of air suspensions distributed along the length direction of the connecting frame, wherein the air suspensions at least comprise electric drive axle suspensions, each electric drive axle suspension comprises a drive axle housing, each drive axle housing comprises a first section and a second section positioned at two sides of the first section, the height of each first section is larger than that of each second section, each second section is connected with a guide arm assembly, each drive axle housing is connected with the connecting frame through each guide arm assembly, a mounting space is formed in each first section, a power source is arranged in each mounting space, and each power source is connected with a tire assembly positioned at the free end of each second section. According to the utility model, the specific structure of the driving axle housing is optimally designed, so that the driving axle housing can be assembled with a power source, and an autonomous driving force can be provided for the whole semi-trailer travelling mechanism.

Inventors

  • LIU BIN
  • WANG XIAOXIA
  • HUANG XIANG

Assignees

  • 新一代汽车底盘系统(苏州)有限公司

Dates

Publication Date
20260508
Application Date
20250630

Claims (9)

  1. 1. The semi-trailer travelling mechanism with the electric drive bridge comprises a connecting frame (200) and a plurality of air suspensions distributed along the length direction of the connecting frame (200), and is characterized in that the air suspensions at least comprise the electric drive bridge suspension (100 a); The electrically driven axle suspension (100 a) comprises a driving axle housing (110), wherein the driving axle housing (110) comprises a first section (111) and a second section (112) positioned at two sides of the first section (111), the first section (111) has a larger height than the second section (112), wherein, The second section (112) is connected with a guide arm assembly, and the driving axle housing (110) is connected with the connecting frame (200) through the guide arm assembly; the first section (111) is provided with an installation space, a power source (140) is arranged in the installation space, and the power source (140) is connected with a tire assembly (130) positioned at the free end of the second section (112).
  2. 2. The semi-trailer running gear with drive bridge of claim 1, wherein the guide arm assembly comprises a guide arm (121) arranged at the bottom of the second section (112), one end of the guide arm (121) is connected with the connecting frame (200) through a guide arm bracket (122), and the other end is connected with the connecting frame (200) through an air spring (123).
  3. 3. The semi-trailer running gear with drive bridge of claim 2, wherein a shock absorber (124) is arranged between the guide arm (121) and the connecting frame (200), and the shock absorbers (124) are vertically distributed.
  4. 4. The semi-trailer running gear with drive bridge of claim 3, wherein the top of first section (111) articulates there is distance rod (125), the other end of distance rod (125) articulates with link (200), distance rod (125) wholly be the slope setting.
  5. 5. The semi-trailer running gear with drive axle of claim 4, wherein the connecting frame (200) comprises a pair of opposite longitudinal beams (210), wherein the opposite sides of the longitudinal beams (210) are respectively connected with a vertical plate (220), a plurality of cross beams (230) are arranged between the two vertical plates (220), The bottom area of the longitudinal beam (210) is larger than that of the vertical plate (220) and is used for being connected with the guide arm bracket (122), the air spring (123) and the shock absorber (124); The side surface area of the vertical plate (220) is larger than that of the longitudinal beam (210) and is used for being connected with the thrust rod (125), and the vertical plate (220) is further provided with a fastener (250) used for being connected with a semi-trailer frame.
  6. 6. The semi-trailer running gear with drive axle of claim 5, wherein a diagonal brace (260) is also provided between the cross beam (230) and the guide arm bracket (122).
  7. 7. The semi-trailer running gear with drive axle of claim 5, wherein two guide arm brackets (122) of the same air suspension are connected through a stabilizing plate (240).
  8. 8. The semi-trailer running gear with drive axle according to any one of claims 1-7, wherein three air suspensions are provided, including two unpowered suspensions (100 b) and 1 electrically driven axle suspension (100 a), wherein the electrically driven axle suspension (100 a) is provided between the two unpowered suspensions (100 b).
  9. 9. The semi-trailer running gear with drive axle of claim 8, wherein the end of the connecting frame (200) is provided with a gas storage tank (300).

Description

Semitrailer running gear with drive bridge Technical Field The utility model belongs to the technical field of trailers, and particularly relates to a semi-trailer travelling mechanism with a drive axle. Background The trailer refers to a vehicle which is towed by a vehicle and has no power driving device, and the combination of a vehicle (truck or tractor and forklift) and one or more trailers is adopted, wherein the truck and the tractor are driving sections of a train of the vehicle, namely a main vehicle, and driven sections towed by the main vehicle are called trailers. Conventional trailer running gear includes wheels, axles and suspensions. The vehicle axle is connected with the vehicle frame through a suspension, and wheels are arranged at two ends of the vehicle axle. The suspension serves to transmit forces and moments acting between the wheels and the frame, and to buffer impact forces transmitted to the frame or the body from uneven road surfaces, and to attenuate vibrations caused thereby, so as to ensure smooth running of the vehicle. However, as the traditional trailer travelling mechanism is mostly of an unpowered structure, namely, the trailer travelling mechanism does not have autonomous driving and braking capability, and only depends on the output of a traction vehicle driving system, the problems of delayed braking, high energy consumption, incapability of independent movement and the like exist, and meanwhile, the risk of sliding vehicles when ascending and descending slopes is increased. In the patent CN219770002U, a detachable trailer running gear is disclosed. This application is including hanging the assembly, and the top welding of hanging the assembly has two to hang the connecting pipe, and two are hung the connecting pipe and have all been welded to the opposite one side of connecting pipe, have welded a set of crossbeam between two opposite one sides of hanging the connecting plate, and two are hung outer wall one side of connecting plate and have all been welded the frame longeron, and two are hung outer wall one side of connecting plate and all are provided with a set of bolt, and the running gear assembly is installed through multiunit bolt fixed mounting to the bottom of two frame longerons. This application case changes bolted connection detachable chassis into by traditional welded chassis, realizes the quick assembly disassembly of chassis, improves conveying efficiency, reduces the vehicle and uses the cost, but the trailer running gear of this application case still belongs to unpowered structure, does not possess independent drive and braking ability equally. Disclosure of utility model 1. Problems to be solved Aiming at least some problems in the prior art, the utility model provides a semi-trailer travelling mechanism with a drive axle, which aims to solve the problems of a series of defects caused by the fact that the existing trailer travelling mechanism does not have active drive capability. 2. Technical proposal In order to solve the problems, the technical scheme adopted by the utility model is as follows: The utility model relates to a semitrailer travelling mechanism with a drive bridge, which comprises a connecting frame and a plurality of air suspensions distributed along the length direction of the connecting frame, wherein the air suspensions at least comprise electric drive bridge suspensions; The electric drive axle suspension comprises a drive axle housing, wherein the drive axle housing comprises a first section and a second section positioned at two sides of the first section, the first section is larger than the second section in height, The second section is connected with a guide arm assembly, and the driving axle housing is connected with the connecting frame through the guide arm assembly; The first section is provided with a mounting space, a power source is arranged in the mounting space, and the power source is connected with the tire assembly positioned at the free end of the second section. In some embodiments, the guide arm assembly includes a guide arm disposed at the bottom of the second section, one end of the guide arm is connected to the connection frame through a guide arm bracket, and the other end is connected to the connection frame through an air spring. In some embodiments, a damper is arranged between the guide arm and the connecting frame, and the damper is vertically distributed. In some embodiments, the top of the first section is hinged with a thrust rod, the other end of the thrust rod is hinged with the connecting frame, and the whole thrust rod is obliquely arranged. In some embodiments, the connecting frame comprises a pair of longitudinal beams which are oppositely arranged, wherein, the opposite sides of the longitudinal beams are connected with vertical plates, a plurality of cross beams are arranged between the two vertical plates, The bottom area of the longitudinal beam is larger than that of the vertical plate a