A protection mechanical device for hoisting of a steel rail is characterized in that the protection mechanical device for hoisting of the steel rail comprises a screw, a nut, a lower supporting piece, a spring, a supporting base, an upper supporting piece, a support plate, a lubrication clearance, rotary bearings, the steel rail, an electric block, a connecting lead screw and fastening devices; the spring is arranged in the supporting base, and the upper portion and the lower portion of the spring abut against the upper supporting piece and the lower supporting piece respectively; a combined adjusting device of the screw and the nut is arranged at the bottom end of the lower supporting piece; the support plate is arranged between the upper supporting piece and the electric block and provided with the rotary bearings; and the reinforced connecting lead screw is arranged in the support plate, and the two ends of the connecting lead screw are clamped by the fastening devices. The protection mechanical device for hoisting of the steel rail has the beneficial effects that the structure is compact, and design is ingenious; using performance is reliable, and mounting and maintenance are convenient; operation is convenient; the labor strength of staff is lowered; acting force during operation is improved; slipping is effectively avoided; and the influence of severe weather is avoided.
Protection mechanical device for hoisting of steel rail
2016-02-17
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |
OVERLOAD PROTECTION APPARATUS FOR VARIABLE RAIL HOISTING
European Patent Office | 2023
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