A composite vehicle cab suspension device
A cab and composite technology, applied in the field of vehicle engineering and cab mounting, can solve the problems of difficulty in taking into account low-frequency vibration isolation capabilities and high mounting units, and achieve improved acoustic comfort, flexible design, and selective suppression. Effect
Inactive Publication Date: 2015-08-05
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology
[0005] The purpose of the present invention is to provide a composite vehicle cab suspension device, which can effectively solve the problem that the vibration isolation capability of the high and low frequency bands of the suspension unit is difficult to balance
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[0032] Figure 1-3 Shown is a composite vehicle cab suspension device, which includes an upper connecting plate 8 with upper fixing bolts 9, a lower connecting plate 2 with lower fixing bolts 1, and an elastic base layer 3 in contact with the lower connecting plate 2. , it is characterized in that: the elastic matrix of the suspension device is a layered structure, the layered structure includes the upper and lower elastic matrix layers 4 with periodically arranged grooves, and the middle part with a liquid-filled cavity 6 Layer 5, the air pockets 10 formed by the grooves and the liquid-filled cavity 6 are all multi-layered, and the air pockets 10 are periodically arranged in the solid state formed by the elastic matrix layer 2 4 in the form of a spatial lattice. In the base body, a cantilever with a mass block 7 is provided on the periphery of the solid base body in each radial direction corresponding to the radial liquid-filled cavity 6 in the middle of the elastic base body...
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The invention discloses a combined type car cab suspension device, belonging to the technical field of car engineering. A traditional work principle needs to be broken through so that the contradiction that high-frequency and low-frequency band vibration separation capabilities of a traditional suspension unit are difficult to both consider is solved, and the selectivity inhibition to a resonance peak value can be realized. An elastic base body of the suspension device is in a layered structure; the structure comprises an elastic base body layer with periodically-arranged grooves and a middle layer with liquid filling cavities; air holes and the liquid filling cavities are formed by overlapping a plurality of layers; the air holes are in a space lattice shape and are periodically arranged in a solid-state base body formed by the elastic base body layer; and a suspension arm with a mass block is arranged on the periphery of the base body of each radiation direction, which corresponds to the radiation-shaped liquid filling cavities of the middle part of the base body. The combined type car cab suspension device is mainly used for suspending a car cab.
Description
technical field [0001] The invention belongs to the technical field of vehicle engineering, in particular to the technical field of cab suspension. Background technique [0002] At present, with the continuous enhancement of people's environmental awareness, the acoustic and vibration comfort in the vehicle cab has attracted more and more attention, and has evolved into an important vehicle performance index and a new focus of technological competition. As an important vibration reduction and isolation device, the cab mount is widely used in various medium and heavy vehicles and construction machinery, and plays a pivotal role in suppressing the structural vibration of the cab and the sound radiation caused by structural vibration. [0003] Cab suspension refers to a vibration control system in which the suspension unit is composed of elastic damping elements and the cab is suspended on the frame. Traditional vehicle cab mounts can be divided into metal spring mounts, air s...
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IPC IPC(8): B62D33/10
Inventor丁渭平杨明亮陈亮吴昱东丁伟
OwnerSOUTHWEST JIAOTONG UNIV