Load calculation method of elevator executive component

Abstract

The invention discloses a load calculation method of an elevator executive component. The load calculation method of the elevator executive component is used for analyzing the load of the actuating component, namely, the main total resistance of four hydraulic cylinders. The total resistance of the oil cylinders to be calculated comprises cutting force resisting working movement, frictional resistance among moving parts, frictional resistance of seal devices, inertia force in a starting and braking or steering process, and resistance generated in an oil return cavity due to crushed effect. The cutting force is the gravity of rated load and the gravity of a support and an upper top board, the seal resistance of the seal devices and the inertia force of the moving parts are calculated, and the seal resistance of the seal devices is relevant to the inertia force of the moving parts. The resistance which each hydraulic cylinder needs to overcome can be known, and the action on a lifting platform from a constant load can be further known. The load calculation method of the elevator executive component has the advantages of being beneficial for guaranteeing the moving stability and accuracy of an executive portion, reasonable in structure, excellent in safety, suitable for various occasions, and meanwhile beneficial for improving operation controllability, and improving energy-saving effect.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to a load calculation method for actuators of the elevator. Background technique [0002] The hydraulic system has the advantages of large power, good adjustability of working pressure and flow, heat can be brought back to the oil tank, etc. The elevator is a kind of cargo lifting mechanism with good lifting performance and wide application range. It can be used for cargo transportation between equipment with height difference in the production line, material on-line and off-line, lifting of components during common assembly, and loading of large hangars. , blanking, warehousing and loading and unloading, and other places, it is used in conjunction with forklifts and other vehicles and fast loading and unloading of goods. It uses a hydraulic system device that can generate more power than other devices. Under the same power, the hydraulic device is small in size, light in weight,...

AI Technical Summary

Problems solved by technology

Of course, there are still many disadvantages in the hydraulic technology used for elevators. For example, the hydraulic pressure has more energy loss during the transmission process, and the hydraulic transmission is easy to leak. Motion stability and correctness; sensitive to oil temperature changes, high manufacturing precision requirements for hydraulic components, high cost, and difficult to find the cause of failure. Therefore, in practical applications, it is necessary to take effective measures to reduce disadvantages in all aspects one by one. The impact of factors, especially the understanding of the load change law of the actuator is not thorough enough