Hydraulic variable-cross-section closed torsion beam

Abstract

The invention relates to the field of automobile part design and manufacture, in particular to a hydraulic variable-cross-section closed torsion beam. The hydraulic variable-cross-section closed torsion beam adopts three-side-contact spring discs and side beam reinforcing plates, the side beam reinforcing plates are integrated through outer protective structures of the spring discs, and the springdiscs and the side beam reinforcing plates are combined and arranged in the connecting positions of the included angles of a girder and side beams. The hydraulic variable-cross-section closed torsionbeam comprises a main crossbeam and the side beams. The side beams are vertically arranged at the head end and the tail end of the main crossbeam and connected with the main crossbeam to form an H-shaped whole structure. Reinforcing modules are arranged at the lower side angles of the combination positions of the main crossbeam and the side beams. Each reinforcing module comprises the corresponding side connecting spring disc, a beam connecting plate and a spring disc connecting plate, each side connecting spring disc is integrally formed and comprises a disc mat at the bottom, an inner connecting side sheet and an outer connecting side sheet, and a mat bottom connecting sheet is further arranged between each inner connecting side sheet and the corresponding outer connecting side sheet and extends to the bottom of the corresponding side beam to be attached to the outer wall of the bottom of the corresponding side beam.

Description

technical field [0001] The invention relates to the field of design and manufacture of auto parts, in particular to a closed torsion beam with a hydraulic variable section. Background technique [0002] The torsion beam rear axle is a type of car rear axle. The torsion beam rear axle is used to balance the up and down jump of the left and right wheels, so as to reduce the shaking of the vehicle and keep the car stable. The known torsion beam rear axles in the market include open torsion beam rear axles and closed torsion beam rear axles. The appearance and operation of the torsion beam semi-independent suspension are similar to the trailing arm type, except that a thick beam is connected between the lower brackets connecting the left and right wheels, and the trailing arms on both sides of the beam are used to position the front and rear directions. The suspension system is connected to the body with the front end of the trailing arm, and there is a link above the beam for ...

AI Technical Summary

Problems solved by technology

Among them, due to the deformation of the material during the forming process of the closed torsion beam, the interior is stretched and compressed by the mold, etc., which can easily lead to the existence of residual stress in the finished product. Heat treatment must be used to avoid cracking of the parts during the production process and reduce the The risk of wrinkling makes the manufacturing process more, resulting in a substantial increase in cost. Most domestic automobile manufacturers hope to use closed torsion beams, but they cannot really adopt them on a large scale.

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