Working method of differential driving unit for heavy-load AGV

Abstract

The invention belongs to the technical field of heavy-load AGVs, and particularly relates to a working method of a differential driving unit for a heavy-load AGV. The differential driving unit comprises a transmission system, a swing mechanism, a lower wheel carrier, a hoisting mechanism, a guide damping mechanism, an upper wheel carrier, a tray and a swing mechanism; the two sets of transmission systems are arranged in a central symmetry mode and located at the bottom of the whole driving unit. The swing mechanism is fixed between the two sets of transmission systems, and the swing mechanism is in sliding connection with the lower wheel carrier through a swing shaft; the hoisting mechanism is connected between the lower wheel carrier and the upper wheel carrier; a tray and a slewing mechanism are sequentially arranged on the upper wheel carrier; the guide damping mechanism is used for being connected between the upper wheel carrier and the lower wheel carrier. The driving unit integrates the functions of lifting, hanging, guiding, swinging, damping, rotation angle detection and neutral position detection, serves as the driving unit of the AGV trolley, and well assists the AGV trolley to achieve whole-vehicle lifting, hanging, omnidirectional driving, 360-degree rotation, outdoor walking and the like.

Description

technical field [0001] The invention belongs to the technical field of heavy-duty AGVs, and in particular relates to a working method of a differential drive unit for heavy-duty AGVs. Background technique [0002] There are several current driving methods for omnidirectional heavy-duty AGV systems: steering wheel drive, Mecanum wheel drive, and differential wheel drive. Among them, when the load capacity of the AGV reaches 50T and above, the steering wheel and the Mecanum wheel cause great damage to the ground due to the excessive wheel pressure, and the ground requirements become extremely high. The mainstream 50-200T indoor omnidirectional heavy-duty AGVs on the market are implemented in the form of multiple differential wheel drive units. [0003] The heavy-duty differential drive unit can be used for various heavy-duty AGV bodies. It has the advantages of flexible rotation, high driving efficiency, stable load-bearing structure, and moderate ground pressure. It is a mai...

AI Technical Summary

Problems solved by technology

[0004] The differential drive units on the market have a lifting function and do not include a guiding function. For example, a hydraulically suspended heavy-duty AGV disclosed in Chinese patent CN201610596673.7. Its lifting cylinder can only bear longitudinal force and cannot withstand uneven road braking. lateral force

There is a differential wheel drive unit that has a swing function, but does not have a shock absorption function; such as the drive unit on an AGV trolley disclosed in CN202110263898.1, although the swing device can assist the AGV trolley to pass through the uneven road surface , but in the process of passing, the frame also swings up and down because there is no shock absorption

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