Coil spring combined elastic mechanism through rope transmission

Abstract

The invention relates to a coil spring combined elastic mechanism through rope transmission. The mechanism has a function meeting the torque requirements required by vehicle suspension elastic elements through amplifying the torque of a coil spring as well as a function of changing stiffness, and can be applicable to suspension use for passenger vehicles, rail vehicles and engineering vehicles aswell as weight balancing use for a mechanical arm, and is also used as an energy storage mechanism for a vehicle short-period traction or launch device. The specific structure of the mechanism is composed of a first side plate 2, a second side plate 9, an outer cylinder 1, a steel wire rope shaft 4, a left-side coil spring 3, a right-side coil spring 13, an output steel wire rope groove cylinder 11, an output connecting shaft 5, two disc bevel gears 19, a small bevel gear 20, a small worm wheel 21, a worm 25 and a motor 26, and is particularly suitable for suspension use of electric automobiles.

Description

technical field [0001] The invention relates to a cable-driven clockwork spring combined elastic mechanism, which has the function of amplifying the torque of the clockwork spring to meet the torque requirements required by the elastic components of the vehicle suspension, and has the function of changing the stiffness, which is suitable for passenger cars and rails The suspension of vehicles and engineering vehicles is suitable for the use of mechanical arms as balance weights, suitable for short-term traction devices or launching devices of vehicles as energy storage mechanisms, and is especially suitable 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 low in energy density, while the torsion bar springs increase the energy density and can be arranged horizontally and vertically along the frame. Due t...

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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 space of the rear seats and the 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. , can meet the requirements of the suspension elastic elements of passenger cars and rail vehicles, and has the advantages of compact structure, small volume 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. , with partial active suspension performance, used in urban buses or urban rail vehicles, this variable stiffness performance ensures that the vehicle body height remains basically unchanged when the number of passengers changes

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