Seat nonlinear suspension integrating height and weight parameter adjusting function

Abstract

The invention discloses a seat nonlinear suspension integrating a height and weight parameter adjusting function. The seat nonlinear suspension comprises a shear type suspension assembly and an elastic assembly; the shear type suspension assembly achieves guiding of movement in the vertical direction through a shear rod mechanism and a sliding way roller; the elastic assembly comprises two horizontal springs, an adjusting rod, a weight adjusting plate, two torsion bars which are symmetrically arranged up and down, a main sliding block, an auxiliary sliding block, two rollers which are installed on the two torsion bars respectively, a first torsion bar fixing steel belt, a second torsion bar fixing belt, an inner spline sleeve, a key and a large nut; semi-cylindrical structures are arrangedon the upper face and the lower face of the auxiliary sliding block. According to the invention, the functions of weight adjustment and height adjustment are integrated in the nonlinear seat suspension based on a shear type connecting rod, so that the complexity of an adjusting mechanism is reduced, the number of parts is small, the cost is low, and the suspension has nonlinear characteristics and good low-frequency vibration isolation capability.

Description

technical field [0001] The invention belongs to the field of vehicle seats, in particular to a seat nonlinear suspension integrated with height and weight parameter adjustment functions. Background technique [0002] Construction vehicles and trucks work in poor road conditions, causing serious low-frequency, large-amplitude vibrations, which in turn lead to various occupational diseases of the drivers, such as back pain and gastroptosis. Because the seat system has a large area of ​​contact with the human body, and changing its parameters has little effect on the dynamic performance of the vehicle, it has become the main research object to improve the vibration comfort of the vehicle. Among them, the seat suspension is the core vibration isolation component, and its performance determines the performance of the whole chair. Current types of seat suspensions are mechanical linear suspensions, air spring suspensions, active and semi-active suspensions, and nonlinear suspensi...

AI Technical Summary

Problems solved by technology

[0003] The problem of mechanical linear suspension is that the low-frequency vibration isolation ability is insufficient, and when the height and weight change, the adjustment mechanism of the suspension is complicated

Although the air spring type suspension has better low-frequency vibration isolation performance, it needs an external air source, and there is also a problem that the height adjustment mechanism is relatively complicated.

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