Four-connecting-rod mechanism for trolley pole

Abstract

The invention discloses a four-connecting-rod mechanism for a trolley pole, and relates to the technical field of trolley buses. The four-connecting-rod mechanism comprises a base plate and a supporting base connected with the base plate. A large arm and a first connecting rod are connected to the supporting base. The first connecting rod is connected with a second connecting rod. A third connecting rod is connected between the second connecting rod and the large arm. A spring is connected between the large arm and the supporting base. Due to the fact that force applied by the spring on the large arm can be controlled by adjusting the lengths of the second and third connecting rods, the large arm can ascend and descend at different speeds to carry out active net touch and active net disengagement work, and meanwhile a trolley bus can be effectively prevented from being disengaged from a net in the driving process.

Description

technical field [0001] The invention relates to the technical field of trolleybuses, in particular to a mechanism for controlling collector poles to perform stable wiring and efficient lifting. Background technique [0002] Trolley bus is a kind of road public transportation that is usually powered by overhead catenary, driven by motor, and does not rely on fixed rails. Compared with ordinary passenger cars, trolley bus needs to install a pair of collector poles (also known as pantographs) on the roof. , used to receive electricity from the contact wire of the catenary and form a current path. Generally, the trolley bus is equipped with a power battery. In the section without the catenary, the power battery is powered by the collector pole after it is disconnected from the grid; in the section with the catenary, The collector pole supplies power to the trolley bus through the catenary, and charges the power battery at the same time. [0003] The patent application No. 03142...

AI Technical Summary

Problems solved by technology

[0003] The patent application No. 03142211.X discloses a double-wire receiving type trolley bus pantograph, which is formed between the underframe, the lower arm, the pull rod, the upper arm, the balance bar, and the cross bar of the bow seat. Two double-connected planar four-bar linkage mechanisms, which mainly rely on the bow-raising cylinder to push the lower arm to swing, can support the horizontal bar of the bow head seat and the bow-top conductive slider to lift up and down, and the bow-top conductive slider of the pantograph to rise Finally, under the pulling force of the lifting bow spring, it keeps rising and keeps it in close contact with the wires of the catenary. The disadvantages are: (1) The speed of the pantograph is uniform during the lifting process. On the other hand, the pantograph cannot be lowered to a safe area in a short time after it is off-line, and the pantograph is likely to collide with objects around the vehicle, resulting in safety accidents; (2) when the vehicle is driving in the When the road is bumpy, it is easy to get off the line

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