Vegetable transplanter shock absorption system and shock absorption system based on STF and ultrasonic wave

Abstract

The invention discloses a vegetable transplanter shock absorption system and shock absorption system based on an STF and ultrasonic wave. The system is based on the characteristics of the STF and ultrasonic wave, causes by the vibration of a liquid medium through the transmission of ultrasonic wave in shear thickening fluid, ensures that the consistency of the fluid is increased and the hardness is increased, so that sufficient counter-acting force is brought to a piston, and damping effect is achieved; moreover, the system utilizes the organic combination of a displacement sensor, an operational amplifier, a sampling holder and A / D conversion, and utilizes impact force applied to displacement change reaction between upper and lower supporting plates of a damping device, thereby outputtingvoltage signals, converting the voltage signals into current values corresponding all moments, and finally converting the voltage signals into ultrasonic wave with corresponding frequencies; as the ultrasonic wave frequencies are different, hardness and viscosity of the shear thickening fluid are different, the counter-acting force is further different, and one-to-one correspondence between the impact force and the counter-acting force is accurately realized.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a shock-absorbing system and a shock-absorbing method for a vegetable transplanter based on STF and ultrasonic waves. Background technique [0002] Long-term vibration of mechanical appliances will inevitably bring great harm to the machinery itself and even the operator. Due to the existence of vibration, it greatly reduces the dynamic accuracy and performance of the vegetable transplanter. At the same time, the vibration of the machine will produce repeatedly changing loads. irreparable catastrophic accident. What's worse is the harm that vibration brings to people and the environment. For example, long-term exposure to vibration sources can cause vibration sickness and aggravate damage to human organs. Moreover, the noise pollution caused by the vibration cannot be ignored. If it is light, it will cause short-term tinnitus to the machine operator,...

AI Technical Summary

Problems solved by technology

For example, long-term exposure to vibration sources can cause vibration sickness and aggravate damage to human organs.

Moreover, the noise pollution caused by the vibration cannot be ignored. If it is light, it will cause the mechanical operator to have a short-term tinnitus, which will harm people's physiology and psychology. If it is serious, it will cause traffic accidents and environmental pollution.

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