Loader shoveling and loading operation resistance real-time testing method based on position calculation

Abstract

The invention discloses a loader shoveling and loading operation resistance real-time testing method based on position calculation. The method comprises the following steps: establishing a fixed coordinate system XOY by taking a point B as an origin of coordinates and taking a direction parallel to the ground as an X direction; measuring the displacement distance of piston rods of movable arm oilcylinders of the left movable arm and the right movable arm at any time node in the bucket operation process, and obtaining the length LQa of the movable arm oil cylinders at the time node; measuringthe displacement distance of a piston rod of the rotating bucket oil cylinder at the time node of bucket operation, and obtaining the length LPf of the rotating bucket oil cylinder at the time node; measuring the stress of the movable arm pin shafts at the joints of the left and right movable arms of the loader and the bucket at the time node of bucket operation; measuring the stress of the pin shaft on the bucket at the time node when the rocker arm of the loader passes through the joint of the connecting rod / bracket and the bucket; and calculating the real-time resistance of the time node ofthe loader operation based on the geometry. The method is accurate, convenient and rapid in testing, and the problem of inaccurate testing in the prior art is well solved.

Description

technical field [0001] The invention belongs to the technical field of machinery, and in particular relates to a real-time testing method for loader shovel loading operation resistance based on position calculation. Background technique [0002] Loader is a kind of earthwork construction machinery widely used in road, railway, construction, hydropower, port, mine and other construction projects. It is mainly used for shoveling bulk materials such as soil, sand, lime, coal, etc. , hard soil, etc. for light shoveling and digging operations. It can also carry out bulldozing, lifting and loading and unloading of other materials such as wood by changing different auxiliary working devices. In the construction of roads, especially high-grade highways, loaders are used for filling and excavation of roadbed engineering, asphalt mixture and aggregate and loading of cement concrete yards. Still can undertake pushing ground of carry soil, strickle and drawing in addition the exercise...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a real-time test method of loader shovel loading operation resistance based on position calculation and a test method of operation resistance. The applied detector has a simple structure, which is convenient for improvement on the existing loader, and the test is accurate, convenient, rapid and very good. overcomes the problem of inaccurate testing of existing technologies

Images