An oil cylinder stroke measuring device, system, engineering machinery and method

Abstract

The invention discloses equipment, a system, engineering machinery and a method for oil cylinder stroke measurement. The equipment comprises a receiving device and a processing device, wherein the receiving device is used for receiving a periodic signal produced by a detection device in an oil cylinder telescoping process and a telescopic signal of an oil cylinder, and the processing device is used for calculating the stretching length of the oil cylinder according to the telescopic signal, the periodic signal and the periodic length of the detection device. The stretching length of the oil cylinder is obtained through calculation of the received periodic signal produced by the detection device and the received telescopic signal of the oil cylinder, so that the stretching length of the oil cylinder is simply and reliably measured with low cost.

Description

technical field [0001] The invention relates to oil cylinder stroke measurement technology, in particular to an oil cylinder stroke measurement device, system, engineering machinery and method. Background technique [0002] By correspondingly converting the length of the hydraulic cylinder, it can accurately reflect the attitude, position and other information of the mechanical structural parts, and can also provide direct detection data for the control of equipment speed monitoring and motion buffering. [0003] For the stroke measurement of the cylinder, there are two commonly used methods: [0004] The first method is to directly measure the stroke of the cylinder through the detection element, such as using a wire sensor or a magnetostrictive displacement sensor. This method is suitable for most occasions where the stroke of the cylinder needs to be measured. The price of the sensor is relatively high, and it is generally only used when necessary; [0005] The second m...

AI Technical Summary

Problems solved by technology

[0004] The first method is to directly measure the stroke of the cylinder through the detection element, such as using a wire sensor or a magnetostrictive displacement sensor. This method is suitable for most occasions where the stroke of the cylinder needs to be measured. The price of the sensor is relatively high, and it is generally only used when necessary;

[0005] The second method is to use the angle data obtained from the inclination sensor or the rotary encoder installed on the structural parts through the connection relationship between the oil cylinder and the structural parts and the relationship between the relevant hinge points to reversely deduce the corresponding telescopic length of the oil cylinder. The method is suitable for equipment with complex moving structural parts such as folding arms of construction machinery. However, due to the dependence of this method on angle detection and the requirements of the reverse derivation method on the data processing controller, its application range is greatly limited.

Images