Limiting device for hopper car bottom door opening and closing mechanism

Abstract

The invention discloses a limiting device for a hopper car bottom door opening and closing mechanism, and belongs to the technical field of freight vehicles. The limiting device specifically comprisesan upper transmission shaft, the upper transmission shaft drives a bottom door to be opened or closed through rotation, the limiting device comprises a limiting swing arm fixedly connected with a swing block, and a limiting mechanism which comprises a deflector rod device and a positioning block, and the deflector rod device drives the positioning block to longitudinally move along the guide structure so that the positioning block moves to different positioning gears; the swing block of the upper transmission shaft drives the limiting swing arm to rotate to the positioning blocks of differentgears so that the rotating angle of the upper transmission shaft is limited, and the opening state of the bottom door is controlled. The opening angle and the ballast unloading flow of a ballast unloading bottom door are achieved by controlling the rotating angle of the transmission shaft, and the functions of mistaken rotation prevention, multi-gear ballast unloading flow control and limiting when the bottom door is located at the full-open position are achieved.

Description

technical field [0001] The invention belongs to the technical field of freight vehicles, and more particularly relates to a limit device for an opening and closing mechanism of a bottom door of a hopper vehicle. Background technique [0002] The existing opening and closing mechanism of the bottom door of the railway ballast hopper car mainly controls the opening and closing action of the bottom door based on the working principle of the four-bar mechanism. figure 1 It shows a structural schematic diagram of an existing stone ballast hopper vehicle bottom door opening and closing mechanism of the present invention, figure 2 It shows a structural schematic diagram of the A-A direction of an existing stone ballast hopper vehicle bottom door opening and closing mechanism of the present invention. Such as figure 1 and figure 2 As shown, when opening and closing the bottom door 3, the clutch fork 9 for manipulating the clutch 10 is in the manual position, and by turning the ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a limit device for the opening and closing mechanism of the bottom door of the hopper car, which can at least solve the problem of unloading while walking on the existing hopper car, preventing excessive opening and closing of the bottom doors on both sides and the middle, and unloading. The technical problem that the material flow cannot be controlled

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