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CN-224197824-U - Cross-shaped reinforcing structure at tail part of auxiliary frame of dump truck

CN224197824UCN 224197824 UCN224197824 UCN 224197824UCN-224197824-U

Abstract

The utility model discloses a cross-shaped reinforcing structure for the tail part of a sub-frame of a dump truck, which relates to the field of dump trucks and comprises two sub-frame longitudinal beams, wherein a plurality of sub-frame cross beams are fixedly arranged between the two sub-frame longitudinal beams, the sub-frame cross beams are uniformly distributed at equal intervals, a turnover shaft is fixedly arranged at the tail part of the two sub-frame longitudinal beams, a cross-shaped reinforcing fork is fixedly arranged between the two sub-frame longitudinal beams and at one side close to the turnover shaft, and the cross-shaped reinforcing fork is fixedly connected with the adjacent sub-frame cross beams and the turnover shaft. The longitudinal beam, the auxiliary frame cross beam and the turnover shaft at the tail part of the auxiliary frame are welded together, so that the bearing load of the tail part of the auxiliary frame can be uniformly distributed, the integral rigidity of the auxiliary frame structure is improved, and deformation or welding seam cracking of the auxiliary frame caused by overload bearing is avoided.

Inventors

  • Su Baojia
  • HUANG HUANG
  • YANG WUHONG
  • PANG JIAN

Assignees

  • 中国重汽集团湖北华威专用汽车有限公司

Dates

Publication Date
20260505
Application Date
20250612

Claims (6)

  1. 1. A cross-shaped reinforcing structure for the tail part of a sub-frame of a dump truck comprises two sub-frame longitudinal beams (1) and is characterized in that a plurality of sub-frame cross beams (2) are fixedly arranged between the two sub-frame longitudinal beams (1), the sub-frame cross beams (2) are uniformly distributed at equal intervals, and a turnover shaft (3) is fixedly arranged at the tail parts of the two sub-frame longitudinal beams (1); A cross-shaped reinforcing fork (4) is fixedly arranged between the two auxiliary frame longitudinal beams (1) and close to one side of the overturning shaft (3), and the cross-shaped reinforcing fork (4) is fixedly connected with the adjacent auxiliary frame cross beam (2) and the overturning shaft (3).
  2. 2. The cross-shaped reinforcing structure for the tail of the auxiliary frame of the dump truck according to claim 1, wherein the cross-shaped reinforcing fork (4) comprises a long fork (41), a first short fork (42) and a second short fork (43), the first short fork (42) and the second short fork (43) are in head-to-tail insertion fit, the first short fork (42) and the second short fork (43) are distributed in a cross shape with the long fork (41), and a fixed cover plate (44) is arranged at the joint of the first short fork (42) and the second short fork (43) with the long fork (41).
  3. 3. The cross-shaped reinforcing structure for the tail of the auxiliary frame of the dump truck according to claim 2, wherein the long fork (41), the first short fork (42) and the second short fork (43) are all U-shaped stamping parts.
  4. 4. The cross-shaped reinforcing structure for the tail of the auxiliary frame of the dump truck according to claim 1 is characterized in that a supporting frame (5) is arranged at one end of each auxiliary frame longitudinal beam (1) far away from the corresponding turning shaft (3).
  5. 5. The cross-shaped reinforcing structure for the tail of the auxiliary frame of the dump truck according to claim 4 is characterized in that the supporting frame (5) adopts a telescopic frame body structure.
  6. 6. The cross-shaped reinforcing structure for the tail of the auxiliary frame of the dump truck according to claim 1 is characterized in that two mounting supports (6) are symmetrically and fixedly arranged on the side walls of two auxiliary frame longitudinal beams (1).

Description

Cross-shaped reinforcing structure at tail part of auxiliary frame of dump truck Technical Field The utility model relates to the field of dumpers, in particular to a cross-shaped reinforcing structure for the tail part of a dumper auxiliary frame. Background In the field of dumpers, the reliability of the subframe structure directly influences the safety and the service life of a vehicle under a heavy-load working condition. The tail of the traditional dump truck generally adopts an I-beam or splayed beam structure, and the structure has a certain bearing capacity, but when the dumper is used for handling heavy goods transportation and unloading scenes, obvious structural defects are exposed, namely when the dumper is used for loading the heavy goods, particularly under the action of torsional moment generated by lifting a cargo box in the unloading process, the tail of the auxiliary frame is required to bear complex alternating load, and because the torsional rigidity of the I-beam or splayed beam structure is limited, the whole auxiliary frame is easy to deform in torsion, the area near the overturning shaft becomes a stress concentration point, and a welding seam of the part gradually generates fatigue cracks and even cracks due to overload stress for a long time, so that the normal operation efficiency of the dumper is influenced, the potential safety hazards such as cargo box inclination and cargo scattering can be possibly caused, and the maintenance cost and the shutdown time are increased. Therefore, a cross-shaped reinforcing structure for the tail part of the auxiliary frame of the dump truck is provided. Disclosure of utility model The present utility model has been made in view of the above-described problems with the conventional sub-frame of a dump truck. Therefore, the utility model aims to provide a cross-shaped reinforcing structure at the tail part of a sub-frame of a dump truck, and solves the problems of the background technology. In order to achieve the above object, the present utility model provides the following technical solutions: A cross-shaped reinforcing structure for the tail part of a sub-frame of a dump truck comprises two sub-frame longitudinal beams, a plurality of sub-frame cross beams are fixedly arranged between the two sub-frame longitudinal beams, the sub-frame cross beams are uniformly distributed at equal intervals, and a turnover shaft is fixedly arranged at the tail parts of the two sub-frame longitudinal beams; and a cross-shaped reinforcing fork is fixedly arranged between the two auxiliary frame longitudinal beams and close to one side of the turnover shaft, and is fixedly connected with the adjacent auxiliary frame cross beam and the turnover shaft. Preferably, the cross-shaped reinforcing fork comprises a long fork, a first short fork and a second short fork, the first short fork and the second short fork are in head-to-tail insertion fit, the first short fork and the second short fork are distributed in a cross shape with the long fork, and a fixed cover plate is arranged at the joint of the first short fork and the second short fork with the long fork. Preferably, the long fork, the first short fork and the second short fork all adopt U-shaped stamping parts. Preferably, a support frame is arranged at one end of each auxiliary frame longitudinal beam, which is far away from the corresponding turning shaft. Further, the support frame adopts a telescopic frame body structure. Preferably, the side walls of the two auxiliary frame longitudinal beams are symmetrically and fixedly provided with two mounting supports. In the technical scheme, the utility model has the technical effects and advantages that: 1. The structural strength is enhanced, the longitudinal beams at two sides of the auxiliary frame are connected, the load is dispersed, and the integral rigidity is improved. 2. Stabilizing the vehicle body, restraining the distortion of the auxiliary frame and ensuring the stability during running and unloading. Drawings In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art. FIG. 1 is a schematic diagram of the structure of the present utility model; FIG. 2 is a top view of the present utility model; FIG. 3 is a perspective view of a cross reinforcement fork of the present utility model; FIG. 4 is a perspective view of a long fork of the present utility model; FIG. 5 is a perspective view of a first shorting fork of the present utility model; Fig. 6 is a perspective view of a second shorting fork of the present utility model. Reference numerals illustrate: 1. The auxiliary frame