Device, method and system for detecting height of forklift pallet fork

Abstract

The invention relates to forklift technology and power electronics detecting technology, in particular to a device, a method and a system for detecting the height of a forklift pallet fork. The device for detecting the height of the forklift pallet fork comprises a plurality of protrusions and hollows, a rack, a counter and a programmable logic controller, wherein the protrusions and the hollows are evenly arranged along the moving direction of an inner door frame in a spaced mode, the rack is in linkage with the inner door frame, the counter is fixed in corresponding to an outer door frame, and the programmable logic controller is used for receiving counting signals of the counter so as to obtain present height value of a pallet fork. The length and size of the protrusions along the moving direction of the inner door frame are identical. The length and size of the hollows along the moving direction of the inner door frame are identical. The device, the method and the system for detecting the height of the forklift pallet fork is low in cost, after the device is installed on a forklift, transforming to the forklift structure is small, and the device, the method and the system for detecting the height of the forklift pallet fork are beneficial for improvement of measuring accuracy of the forklift.

Description

technical field [0001] The invention relates to forklift technology and power electronic detection technology, in particular to a device, method and system for detecting the fork height of a forklift. Background technique [0002] At present, there are not many instruments or devices for detecting the fork height of forklifts on the market, some of which are very expensive, such as laser ranging; There are even some detection devices that cannot perform this function due to installation problems, such as ultrasonic sensors; the implementation of the above three schemes, in terms of cost, is relatively low in cost performance, and is not easy to be used in popular industries. Popularize and promote in handling vehicles. [0003] Other fork height detection devices, such as a fork height control device for forklift disclosed in the invention patent with the authorized announcement number CN 201121116Y, include a fork controller, the fork controller is connected with the oil p...

AI Technical Summary

Problems solved by technology

[0005] Another example is a forklift fork height indicating device disclosed in the invention patent with the authorized announcement number CN201217626Y. A displacement sensor for measuring the displacement of the inner and outer masts is installed between the outer mast and the inner mast. The displacement sensor is connected to the The display device that displays the displacement value uses the displacement sensor to detect the moving position of the inner mast, sends the detected signal to the electronic device for processing, and displays the value on the display device; the displacement sensor is a rotation sensor, and the displacement sensor The fixed end is fixed on the outer mast, and its rotating part is connected to the inner mast; this scheme has something in common with the scheme adopted by the fork height sensing device of a forklift disclosed in the aforementioned invention patent with the authorized notification number CN201125141Y , are similar to detecting the height of the forklift by counting rotations; therefore, the accuracy of this solution is low, and the rotation sensor is also vulnerable to damage during use

Images