Railway gondola car bottom door opening and closing buffer device

Abstract

The invention discloses a railway gondola car bottom door opening and closing buffer device which comprises a torsion bar spring mechanism, the torsion bar spring mechanism comprises a torsion bar spring and a connecting rod, the torsion bar spring is in a U shape, one end of the torsion bar spring is connected with a railway gondola car bottom door, the other end of the torsion bar spring is rotationally connected with one end of the connecting rod, the other end of the connecting rod is rotatably connected with a bottom frame of the railway gondola car, a spring buffer structure is arrangedon a bottom door stop of the bottom door of the railway gondola car, and when the bottom door of the railway gondola car is opened, the spring buffer structure is in elastic fit with the bottom door of the railway gondola car. The buffer device reduces opening and closing impact force of the bottom door through the torsion bar spring mechanism and the spring buffer structure, avoids integral deformation of the bottom door, cracking of weld joints, breakage of hinges, increase of gaps of the bottom door and the like, assists the bottom door to be closed through the torsion bar spring mechanism,reduces strength required for closing the bottom door, and reduces working intensity of operators.

Description

technical field [0001] The invention belongs to the technical field of buffer devices, and more particularly relates to a buffer device for opening and closing a bottom door of a railway gondola car. Background technique [0002] Such as Figure 1 to Figure 4 The bottom door of the existing railway open car, one side of the bottom door 1' is hinged with the hinge seat 2.2' on the bottom frame 2' through the hinge 1.2', and the other side is hooked on the bottom frame 2' through the bottom door holder 1.1' Hinged shackle 3'. When unloading, the lock hook 3' is separated from the bottom door holder 1.1' by external force, and the bottom door 1' rotates downward around the round pin 1.3' on the hinge seat 2.2' under the action of itself and the gravity of the cargo. When the bottom door When 1' rotates until it collides with the bottom door stopper 2.1' set on the bottom frame 2', the rotation of the bottom door stops, the bottom door is fully opened, and the goods flow out of...

AI Technical Summary

Problems solved by technology

When unloading, the lock hook 3' is separated from the bottom door holder 1.1' by external force, and the bottom door 1' rotates downward around the round pin 1.3' on the hinge seat 2.2' under the action of itself and the gravity of the cargo. When the bottom door When 1' rotates until it collides with the bottom door stopper 2.1' set on the bottom frame 2', the rotation of the bottom door stops, the bottom door is fully opened, and the goods flow out of the carriage; on the contrary, the bottom door 1' rotates upward by external force and locks The hook 3' is hooked to the bottom door support 1.1', the bottom door is closed and can be used for loading operations. When the bottom door is unloading, the bottom door collides with the bottom door stopper under the action of itself and the gravity of the cargo. The impact force will cause great damage to the bottom door, such as the overall deformation of the bottom door, cracking of welds, broken hinges, enlarged bottom door gaps, etc. In severe cases, it will cause difficulty in closing the bottom door and leakage of goods, thus Affect vehicle performance and operational safety

In addition, when the bottom door is closed, it completely depends on the external force to overcome the gravity of the bottom door and rotate upwards, which increases the labor intensity of the operator.

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