A New Type of Heavy Truck Air Suspension

Abstract

A new type of heavy truck air suspension belongs to the technical field of automobile parts manufacturing. It is characterized in that it comprises an upper rubber suspension main mounting plate (1) and a lower rubber suspension main welding equalizing beam (5), and a rubber spring base (8) is provided on the upper side of the rubber suspension main welding equalizing beam (5). ), the rubber suspension main springs (3) are respectively fixed between the two ends of the rubber spring base (8) and the rubber suspension main mounting plate (1). A rubber air spring (2) is also arranged between the two rubber suspension main springs (3). The new heavy truck air suspension is light in weight, good in variable stiffness performance and cushioning performance, strong in shock absorption, and improves usability and maintenance.

Description

technical field [0001] A novel heavy-duty truck air suspension belongs to the technical field of auto parts manufacturing. Background technique [0002] With the development of automobile technology, the requirements for tractor suspension are getting higher and higher. At present, most tractor suspensions adopt two types of leaf spring suspension and rubber spring suspension. The leaf spring suspension assembly is heavy in weight, poor in damping capacity, and complex in structure. When driving on complex road conditions, the vibration frequency of the vehicle is high. The characteristic curve of the leaf spring is a straight line. When the vehicle is loaded or fully loaded, the natural vibration frequency of the vehicle changes greatly, so when driving on complex road conditions, the grip of the wheels on the ground is poor, and the overall shaking of the vehicle body is serious when driving, which can easily cause driver fatigue. The rubber spring suspension assembly is ...

AI Technical Summary

Problems solved by technology

The leaf spring suspension assembly is heavy in weight, poor in damping capacity, and complex in structure. When driving on complex road conditions, the vibration frequency of the vehicle is high. The characteristic curve of the leaf spring is a straight line. When the vehicle is loaded or fully loaded, the natural vibration frequency of the vehicle changes greatly, so when driving on complex road conditions, the grip of the wheels on the ground is poor, and the overall shaking of the vehicle body is serious when driving, which can easily cause driver fatigue

The rubber spring suspension assembly is much lighter than the leaf spring suspension assembly, and the overall shock absorption and comfort are far better than the leaf spring suspension when running on actual road conditions. However, the load curve of the rubber spring suspension It is a nonlinear sudden change curve, that is, its kinematic characteristic curve is stable when it is running under no load, but after loading, its characteristic curve changes suddenly when the vehicle moves under complex road conditions. As the load increases, the rubber spring stiffness value increases significantly, so the rubber spring The nonlinear stiffness of the spring suspension does not transition smoothly when the auxiliary spring contacts, the stiffness value changes too much

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