Integrated plate spring seat assembly used for heavy truck

Abstract

The invention discloses an integrated plate spring seat assembly used for a heavy truck, pertaining to the technical field of chassis components of trucks. A one-axle back plate spring seat (assembly)and a two-axle front plate spring seat (assembly) of a double front axle car model series are developed and designed in an integrated manner. A round girder structure of a traditional mold part is greatly simplified to be a groove-shaped structure. The integrated plate spring seat assembly is composed of a left-plate spring seat integration structure, a right-plate spring seat integration structure and the round girder. Stress of a car frame assembly is effectively dispersed in order to improve torsional rigidity of the overall truck. Additionally, the integrated plate spring seat assembly isconfigured for small space of a car frame. The number of assembly parts is reduced. Great input into a mold in the early phase is decreased. The integrated plate spring seat assembly is high in reliability.

Description

technical field [0001] The invention belongs to the technical field of truck chassis components, and relates to the integrated development and design of a first axle rear leaf spring support assembly and a second axle front leaf spring support of a double front axle steering truck. Background technique [0002] At present, the rear support of the front first axle and the front support of the second front axle of a domestic truck with double front axles are installed independently. When the length of the two leaf springs is 1800mm, the space between the two leaf springs is compact and it is difficult to disperse the stress of the frame assembly. It leads to early fatigue failure at the position where the frame longitudinal beam is installed with the leaf spring seat. [0003] Moreover, the existing Yuanbao beam structure is usually installed on the support of the front second bridge with bolts. The Yuanbao beam is a complex sheet metal part, which takes up a large space, whic...

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Problems solved by technology

[0002] At present, the rear support of the front first axle and the front support of the second front axle of a domestic truck with double front axles are installed independently. When the length of the two leaf springs is 1800mm, the space between the two leaf springs is compact and it is difficult to disperse the stress of the frame assembly. Leading to early fatigue failure at the position where the frame longitudinal beam is installed with the leaf spring seat

[0003] Moreover, the existing Yuanbao beam structure is usually installed on the support of the front second bridge with bolts. The Yuanbao beam is a complex sheet metal part, which takes up a large space, which is not conducive to the space layout of the vehicle, and the Yuanbao beam on the leaf spring seat is easy to connect with the leaf spring. Cracking fatigue damage occurs at the bolt hole of the seat contact surface

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