A lower swing arm assembly of independent suspension for automobiles

Abstract

The invention relates to an automobile independent suspension lower arm assembly, including a ball pin, a lower arm body, a support, a push force rod and a bushing; one end of the lower arm body is provided with a ball pin mounting hole, the ball pin is installed inside the ball pin mounting hole, the other end of the lower arm body is provided with a bushing mounting hole, the bushing is provided inside a bushing mounting hole; the support is fixed on the lower arm body, the push force rod is fixed on the support. The lower arm body adopting a forge piece structure can fully guarantee the load bearing ability of a hanging frame; the hanging frame being clamped on the lower arm body, greatly reduces the received stress from a screw bolt, not only reduces the designing diameter of the screw bolt, but also ensures fully a reliability for support fixing and the screw thread connection. All the structures connected with the lower arm assembly being put on a casting support, not only is simple and convenient to install, but also is low in cost. The mounting means of the ball pin and the lower arm body not only reduces the manufacturing cost of the lower arm body, but also facilitates the ball pin replacements when being maintained and repaired in the market, and saves the maintenance cost.

Description

technical field [0001] The invention belongs to the technical field of suspension systems, in particular to a lower swing arm assembly of an independent suspension for automobiles. Background technique [0002] The lower swing arm assembly of the car is located between the car body and the wheel. It is the main guide rod of the suspension, which bears the longitudinal and lateral forces during starting, braking and turning, and can also act as a thrust rod, which determines the performance of the whole vehicle. one of the main components. Independent suspensions such as MacPherson independent suspension and double wishbone independent suspension have swing arms. [0003] The lower swing arm assembly of a general suspension is composed of a ball pin, a swing arm body and a bushing. In the swing arm assembly where the swing arm body is a forging or casting, the ball pin seat and the swing arm body are generally integrated, while in the swing arm assembly where the lower swin...

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a lower swing arm assembly structure of independent suspension for automobiles, so as to solve the problem of unsmooth movement, high cost and complex structure of the lower swing arm in the prior art due to the preparation process

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