Vehicle connecting bridge device and pallet truck

Abstract

The invention discloses a vehicle connecting bridge device and a pallet truck. The vehicle connecting bridge device comprises a vehicle body; a connecting bridge frame which is arranged on the vehicle body, wherein the connecting bridge frame swings up and down with the central axis of the vehicle body as the axis, and driving wheels with steering and driving functions are symmetrically arranged on the two sides of the connecting bridge frame; a swing shaft is arranged on the central axis of the connecting bridge frame in a penetrating mode, the two ends of the swing shaft are connected with the vehicle body, and damping springs are arranged at the two ends of the connecting bridge. The connecting bridge frame is arranged on the vehicle body through the swing shaft to form a swing bridge structure, and when the vehicle runs to a road surface with poor road conditions, the swing bridge swings leftwards and rightwards to adapt to wheel surfaces so that the vehicle body part is kept balanced and stable, stress on the driving wheels on the two sides is uniformly distributed, excessive abrasion of the wheels is reduced, and the service life of the wheels is prolonged; meanwhile, the driving motor and the steering motor are arranged on the wheels on the two sides respectively so that the wheels on the two sides have independent driving and steering kinetic energy respectively.

Description

technical field [0001] The invention relates to the technical field of pallet truck equipment, in particular to a vehicle connecting bridge device and a pallet truck. Background technique [0002] Electric pallet truck is a transportation tool suitable for heavy load and long-term cargo operation, which can greatly improve the efficiency of cargo handling. It can be widely used in logistics, warehouses, engineering, shopping malls, stations and airports, etc. With the rapid development of modern industry and logistics industry, electric pallet trucks, as an important means of cargo transportation, have received extensive attention in terms of efficiency, manufacturing and maintenance of finished products, safety and stability, etc. [0003] Such as figure 1 As shown, the existing pallet truck is provided with a hydraulic steering motor 11 on the mounting plate 15, and a sprocket 12 is arranged on the main shaft of the hydraulic steering motor 11, and the power wheel 13 on t...

AI Technical Summary

Problems solved by technology

[0004] 1. In the actual turning process of the vehicle, the actual turning angles of the power wheels on the left and right sides are not the same, but the turning angles are the same under the action of the connecting rod, which makes the driving wheels prone to slipping during the turning process of the vehicle and the driving is unstable;

[0005] 2. Since the mounting plate is fixedly connected to the vehicle body by welding, when the vehicle is driving on a road with poor road conditions, the load of the vehicle body is likely to be concentrated on the power wheel on one side, and the force on the power wheels on both sides is unbalanced, and even occurs If the load is too large or overloaded, it is easy to damage the power wheel and greatly reduce the service life of the power wheel

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