An Elastic Mechanism with Expandable Parallel Springs

Abstract

The invention relates to an elastic mechanism capable of expanding the number of parallel clockwork springs. The elastic mechanism capable of expanding the number of the parallel clockwork springs hasthe function of outputting large elastic torque by using the parallel connection clockwork springs of a gear and a steel wire rope, can amplify the torque of the clockwork springs to meet the torquerequirement required by an elastic element of a vehicle suspension, and has the function of variable rigidity; the elastic mechanism is suitable for suspensions of a passenger vehicle, a railway vehicle and an engineering vehicle, is suitable for balancing part of the weight of a mechanical arm and part of the weight of a lifted object to improve the efficiency of the mechanical arm so as to achieve the purpose of saving energy, and is suitable for being used as an energy storing mechanism of a vehicle short-time traction device or a launching device; and the specific structure is composed ofa gear ring 1, the gear 3, a gear shaft 10, an expansion shaft 5, the steel wire rope 7 and a bottom plate 12, and the elastic mechanism is particularly suitable for being used for the suspension of an electric automobile.

Description

technical field [0001] The invention relates to an elastic mechanism that can expand the number of springs connected in parallel. It has the function of using gears and wire ropes in parallel to combine the springs to output a large elastic torque, and can amplify the torque of the springs to meet the requirements of the elastic components of the vehicle suspension. It is suitable for the suspension of passenger cars, rail vehicles and engineering vehicles. It is suitable for the mechanical arm to balance a part of itself and the weight of the lifting object to improve the efficiency of the mechanical arm and achieve the purpose of energy saving. , suitable for short-term traction device or launching device used as an energy storage mechanism, especially for the suspension of electric vehicles. Background technique [0002] At present, the car mainly uses coil springs and torsion bar springs as the elastic components of the suspension. The coil springs are large in size and ...

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Problems solved by technology

[0002] At present, the car mainly uses coil springs and torsion bar springs as the elastic components of the suspension. The coil springs are large in size and low in energy density, while the torsion bar springs increase the energy density and can be arranged horizontally and vertically along the frame. Due to their small size, they are more affected. However, the length of the torsion bar is relatively large, which still affects the structure of the frame and the space of the compartment. Especially when the rear axle of a car is independently suspended, it often results in a reduction in the rear seat space and trunk space, and the energy of the clockwork spring The density is high, but the torque provided by the single body is small, and the inner hole of the clockwork spring is small, and the inner shaft is difficult to meet the strength requirements of the vehicle suspension. Therefore, a new rope-driven clockwork spring combined elastic mechanism is designed by combining the clockwork spring. , after connecting the clockwork spring gear shafts through the planetary position, each gear shaft is then expanded and connected with the extension shaft with the clockwork springs through the steel wire rope, expanding the number of parallel clockwork springs, which can meet the suspension elasticity of passenger cars and rail vehicles The requirements of the components have the advantages of compact structure, small size and easy layout. At the same time, this mechanism can realize the function of changing the stiffness of the elastic mechanism while keeping the deformation of the elastic mechanism unchanged. It has the performance of a partial active suspension and is used for urban public transportation. Vehicles or urban rail vehicles, this variable stiffness performance ensures that the height of the vehicle body remains basically unchanged when the number of passengers changes

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