Vibration isolation device for vehicle with Mecanum wheels

Abstract

The invention discloses a vibration isolation device for a vehicle with Mecanum wheels. The vibration isolation device comprises a supporting part, two vibration isolation units, a moving part and a spring; a first boss is arranged on the top of the supporting part, and a second boss is arranged at the bottom of the moving part and is positioned above the first boss; the two vibration isolation units are fixedly connected to the top of the supporting part and are symmetrically arranged along the center line of the supporting part; the moving part is positioned between the two vibration isolation units and is respectively movably connected with the two vibration isolation units; and the spring is sleeved on the second boss and the first boss, the top of the spring is fixedly connected with the bottom of the moving part, and the bottom of the spring is fixedly connected with the top of the supporting part. The vibration isolation device has the advantages that the requirement on a nonlinear vibration isolation function can be met in a complicated engineering work environment; the vibration isolation device in a static state is high in rigidity, namely the bearing capacity; and when moving, the vibration isolation device is low in rigidity, in other words, a low-frequency vibration isolation effect is realized, and the vibration isolation device is good in vibration isolation effect.

Description

technical field [0001] The invention belongs to the field of vehicle engineering, and in particular relates to a vehicle vibration isolation device equipped with mecanum wheels. Background technique [0002] Mecanum Wheel (Mecanum Wheel) is a kind of all-round mobile wheel. It was invented by Swiss Bengt Lion in 1973, so it is also called Lion wheel, and he works in Mecanum AB company. The feature of this wheel is that on the basis of the traditional wheel, a number of small rollers that can rotate freely are installed on the rim along the direction of 45° with the axis, so that when the wheel rolls, the small rollers will produce direction-finding motion. Through the combined use and control of the mecanum wheels, the car body can be moved and rotated in any direction within the motion plane. [0003] In 1975, Lion obtained the U.S. patent (Patent No. 3,746,112, "Directionally Stable Self Propelled Vehicle"). In 1980, the U.S. Navy bought the patent and developed it for mi...

AI Technical Summary

Problems solved by technology

[0006] At present, the vibration isolation of vehicles equipped with mecanum wheels is a linear spring suspension system, which has a simple structure and low cost, but the natural frequency of the system is high, the vibration isolation frequency band is narrow, and the adaptability is poor

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