Guiding vibration-isolating coupled seat for vehicle

Abstract

The invention relates to a guiding and vibration-isolating coupled seat for a vehicle. The left and right sides of the structure are symmetrical, and one side thereof includes: a seat panel connected in sequence, a scissor mechanism, a shock absorber, a main spring, a seat bottom plate, and a connecting seat. Rod, auxiliary spring cover, auxiliary spring, auxiliary spring base, wherein, the scissor mechanism, connecting rod, auxiliary spring base, auxiliary spring, auxiliary spring cover, seat panel and seat bottom plate together constitute the scissor negative stiffness Vibration isolation mechanism, which has the function of guiding the vertical motion of the seat and the function of negative stiffness vibration isolation. Effective low-frequency vibration isolation is achieved through the joint action of the main spring, shock absorber and scissor-type negative stiffness vibration isolation mechanism. At the same time, the vertical movement of the seat is more stable; Seats are fairly vibration-isolating. The seat of the invention is simple and compact in structure, uses few parts, is easy to install, has stable performance, low cost, good vibration isolation effect and reliability, and is suitable for vehicles such as trucks, armored vehicles, rail vehicles and engineering vehicles.

Description

technical field [0001] The invention belongs to the technical field of vehicle seats, and in particular relates to a guided vibration-isolation coupling type seat for vehicles. Background technique [0002] As the last link to attenuate vehicle vibration, the seat plays a vital role in the comfort performance of the vehicle. According to the statistics of the World Health Organization, in recent years, cervical spondylosis and digestive system diseases caused by low-frequency vibration have become common driving diseases for vehicle drivers and passengers. Therefore, improving the low-frequency vibration isolation performance of the seat is of great significance to avoid impact damage to the internal organs of the human body and the occurrence of driving diseases. [0003] At present, the existing vehicle seats have their own advantages and disadvantages. The vehicle seats with vibration isolation performance are mainly divided into three types: the first is the controllabl...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing vehicle seats have their own advantages and disadvantages. The vehicle seats with vibration isolation performance are mainly divided into three types: the first is the controllable suspension seat, which is based on the control theory of the seat The seat suspension system is designed and controlled, so it needs to be equipped with a corresponding control unit and a controllable suspension system. Although its vibration isolation effect is good, its cost is high and its reliability is poor, so it is only used in a few vehicles; the second is Linear vibration isolation seat, which has a linear suspension system, is low in cost and widely used, but its low frequency vibration isolation effect is poor; the third type is nonlinear vibration isolation seat, which has better vibration isolation effect , but limited to the field of seating, researchers know that only the scissor mechanism is used as the guiding mechanism for the vertical movement of the seat, and the vibration isolation mechanism of the seat needs to be designed separately according to the nonlinear vibration isolation theory. The guiding mechanism and the vibration isolation mechanism They are independent of each other, resulting in a complex structure of the suspension system, which is not compact, takes up a large space, is not easy to install, and requires many precision parts, high cost, poor stability and reliability, resulting in no mature high-performance low-frequency vibration isolation seat available

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