Hopper car and end bottom door opening/closing mechanism thereof

Abstract

The invention discloses a hopper car and an end bottom door opening / closing mechanism thereof. The end bottom door opening / closing mechanism comprises a door opening arm, a door closing arm, a connection shaft and two connection rods, wherein the door opening arm is used for opening an end bottom door, the door closing arm is used for closing the end bottom door, the two ends of the connection shaft are fixedly connected with the door opening arm and the door closing arm respectively, and the door opening arm and the door closing arm drive the connection shaft to rotate; the two connection rods are connected to the side of the door opening arm and the side of the door closing arm, each connection rod comprises a first folding rod and a second folding rod which are fixedly connected at a certain angle, one of the first folding rod and the second folding rod is hinged to the end bottom door, the other of the first folding rod and the second folding rod is hinged to the door opening arm on the corresponding side or the door closing arm, and the hinge rotation axes are parallel to the connection shaft. Through optimal design of the connection rod structure, self-locking is conducted effectively, stability of the opening state and closing state of the end bottom door is guaranteed, and the unloading efficiency of the hopper car is improved.

Description

technical field [0001] The invention relates to the technical field of railway freight cars, in particular to a funnel car and an opening and closing mechanism for a bottom door at its end. Background technique [0002] The funnel car is a kind of railway freight car whose end wall is inclined inward or the end surface is a large arc, and the lower part of the car body is equipped with a funnel. [0003] Usually, the goods are loaded from the top, and the bottom door of the funnel is opened when unloading, so that the goods are automatically discharged by their own gravity. When unloading bulk cargo, the unloading mechanism is an important part of the hopper car. The structure of the unloading mechanism directly restricts the efficiency of unloading and has a significant impact on the efficiency of the entire vehicle. [0004] At present, intermediate unloading is widely used on hopper cars, especially coal hopper cars, and the opening and closing of the middle bottom door ...

AI Technical Summary

Problems solved by technology

The structure is relatively complicated, and when the end of the hopper car is equipped with a leaky warehouse to speed up the unloading efficiency, it is necessary to set an end bottom door, and the unloading mechanism of the above structure is not suitable for opening and closing an end bottom door, and cannot effectively and stably Control the opening and closing position of the bottom door at the end

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