Opening and closing system of railway hopper car bottom door

Abstract

The invention discloses a bottom door opening and closing system of a railway hopper vehicle. The bottom door opening and closing system comprises a bottom door, a bottom door opening and closing mechanism, a door opening block and a door closing block, wherein the bottom door and the bottom door opening and closing mechanism are arranged at the bottom part of the hopper vehicle, the door opening block and the door closing block are arranged on ground, the bottom door opening and closing mechanism is a double four-connecting rod mechanism with movement dead points, a driving lever is integrally in a T shape, a T-shaped transverse part is provided with a door opening arm and a door closing arm, and the tail end of the vertical part of the T-shaped vertical part is fixedly connected with a transmission shaft. The bottom door opening and closing system has the advantages that the unidirectional or bidirectional dead point passing opening and closing mechanism is improved, and a control system for bidirectional closing and opening of the bottom door is provided; by utilizing the mechanism on the vehicle, and the matching of positive and reverse directions of the door opening block and the door closing block fixedly arranged on the ground, the bottom door can be automatically opened and closed no matter which direction the vehicle is driven into an unloading yard along a position 1 and a position 2, the manual opening or assisting of any auxiliary power is not needed, the train grouping and unloading time is shortened, the utilization efficiency of the vehicle is improved, and the risk of false operation is reduced.

Description

technical field [0001] The invention relates to the technical field of design and manufacture of railway wagons, in particular to the technical field of design and manufacture of automatic doors of railway wagons, and in particular to an opening and closing system for a bottom door of a railway hopper car. Background technique [0002] The opening and closing mechanism of the bottom door of railway coal trucks is limited by the vehicle structure and vehicle boundaries, and usually can only be installed on the bottom or side of the car body. The opening and closing of the bottom door is realized by means of pneumatic, hydraulic, and electric control. It is found that there are the following problems: complex structure, complex operation, low transmission efficiency, large self-weight, low unloading efficiency, and high manufacturing, operation and maintenance costs. Therefore, it is necessary to design a new opening and closing mechanism for the bottom door of railway coal wa...

AI Technical Summary

Problems solved by technology

[0002] The opening and closing mechanism of the bottom door of railway coal trucks is limited by the vehicle structure and vehicle boundaries, and usually can only be installed on the bottom or side of the car body. The opening and closing of the bottom door is realized by means of pneumatic, hydraulic, and electric control. It is found that there are the following problems: complex structure, complex operation, low transmission efficiency, large self-weight, low unloading efficiency and high manufacturing, operation and maintenance costs, etc.

[0003] Chinese patent 03236004.5 discloses a funnel-type railway wagon bottom door opening and closing mechanism. This mechanism has strict requirements on the direction of coal wagons entering the unloading yard, which is not conducive to the improvement of the efficiency of coal wagons, and has a greater impact on the efficiency of the railway transportation system. On the other hand, since vehicles can only unload in one direction and heavy vehicles can only run in one direction, it is easy to cause partial wear of the wheels and increase the workload of vehicle maintenance

Chinese patent application 201310187725.1 discloses the opening and closing mechanism of the bottom door, which can realize the automatic unloading of forward and reverse bidirectional operation, but the opening and closing handles of the opening and closing arms of the mechanism have staggered distances in the horizontal and vertical directions, and the opening and closing logic is more complicated , the requirements for the manufacturing tolerance of the mechanism are relatively high, and the interference phenomenon may occur in the process of opening and closing the door after the vehicle is worn out.

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