a lifting mechanism

Abstract

The invention belongs to the technical field of mechanical transmission systems, and in particular relates to a jacking mechanism. In the jacking mechanism, the jacking arm and the pedal are alternately stressed, and the jacking arm is controlled through the cooperation of the chain and the double-row sprocket. The rotation around the hinge axis and the rotation of the pedal around the hinge axis, because only the rotation around the hinge axis and the meshing process between the double-row sprocket and the chain are involved, so the friction consumption is small, and the force point A and force point B required for the entire rotation process are given The strength is very small, which greatly reduces the application of external force and the supply of external energy; this jacking mechanism is only a combination of the mechanical structure of each component, and there is no deformation of a single component, so in the process of replacing elastic parts Among them, the potential safety hazard brought by the limited life of the elastic parts is avoided, the service life of the whole mechanism is longer, the operation of other mechanisms where it is located is safer, and the workload of checking the working conditions of the mechanism is reduced.

Description

technical field [0001] The invention belongs to the technical field of mechanical transmission systems, and in particular relates to a jacking mechanism. Background technique [0002] For the existing mechanical transmission system, the elastic characteristics of elastic parts are often used in some mechanical structures. By first applying force to the elastic parts to make them deform, and then using the automatic deformation process when they return to their original shape to drive other mechanical structures to move, However, in this process, if the elastic member generates enough elastic potential energy to drive other structures to move, it needs to give enough energy, and the power consumption here is large; [0003] In addition, if the elastic parts in the mechanical structure are used repeatedly and frequently, their life must be taken into consideration. The life of the spring is directly related to the operation of the entire mechanical structure. However, the life...

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Problems solved by technology

[0002] For the existing mechanical transmission system, the elastic characteristics of the elastic parts are often used in some mechanical structures. By first applying force to the elastic parts to make them deform, and then using the automatic deformation process when they return to their original shape to drive other mechanical structures to move, However, in this process, if the elastic member generates enough elastic potential energy to drive other structures to move, it needs to give enough energy, and the power consumption here is large;

[0003] In addition, if the elastic parts in the mechanical structure are used repeatedly and frequently, their life must be taken into consideration. The life of the spring is directly related to the operation of the entire mechanical structure. However, the life of the elastic parts is limited, so use a certain number of times Finally, it is necessary to observe the working state of the elastic parts in real time, which also increases the workload, affects the long-term operation of the mechanical structure, and also brings certain hidden dangers to the safety of the entire mechanical structure.

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