Controllable energy absorbing roll-over protective structure for engineering vehicle

Abstract

The invention discloses a controllable energy absorbing roll-over protective structure for a engineering vehicle, which is installed on the back vehicle frame of the engineering vehicle. The protecting device consists of a cab framework and two energy absorbing grids, wherein the energy absorbing grids are respectively fixed on the upper ends of the left side and the right side of the cab framework; the energy absorbing grids are grid plates with nest holes, which are formed by the welding combination of a plurality of steel plates; the cab framework is archy, and the upper part of the cab framework is covered with a shock resistant plate. In the invention, after the energy absorbing grids are fixed on the upper ends of the left side and the right side of the cab framework, the energy absorbing grids first touch the ground when the engineering vehicle overturns slantways, and the energy absorbing grids are deformed to absorb energy after bearing force so as to ensure the sufficient living space in a cab and protect a driver from being hurt. The framework of the cab is designed into an arch, and the upper part of the cab framework is covered with the shock resistant plate so as to enable the cab to withstand the shock of falling objects from high altitude and not to deform, thus protecting the driver from being hurt.

Description

technical field [0001] The invention relates to a controllable energy-absorbing rollover protection device for engineering vehicles. Background technique [0002] Existing engineering vehicles such as loaders or excavators are prone to sideways rollover during construction. Due to the unreasonable structural design of the cab (operating room) of existing engineering vehicles, the safety of rollover is not taken into account. Even if there is a rollover protection device, its structure is not reasonable. When a rollover occurs, the protection device is easily crushed and there is no living space, causing serious injury or death to the driver. figure 1 As shown, it is a schematic diagram of simulation of the sideways rollover state of the existing loader. When the loader 1 rolls over sideways, the upper side 21 of the protection device 2 is first stressed and deformed until the cab 1 is deformed as a whole and squeezed. Squeeze, which will eventually lead to serious injury or...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a controllable energy-absorbing rollover protection device for engineering vehicles in order to solve the problem that the driver’s cab is seriously deformed when the above-mentioned existing engineering vehicles are overturned, resulting in serious injury or death to the driver.

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