Horizontal guide device of polar crane

Abstract

The invention discloses a horizontal guide device of a polar crane. The horizontal guide device of the polar crane comprises outer clamping plates, a horizontal wheel I, a journey guide block, a horizontal wheel II, an inner clamping plate I, an inner clamping plate II, a small disc spring group, a shear pin and a big disc spring group, wherein the inner clamping plate I, the inner clamping plate II and the journey guide block are hinged in the middle of the outer clamping plate through pin shafts; the horizontal wheel I is connected at a big angle part of the inner clamping plate I through a wheel shaft; the horizontal wheel II is connected at a big angle part of the inner clamping plate II through a wheel shaft; another acute angle part of the inner clamping plate I is hinged with one end of the small disc spring group 11 through the pin shaft; the shear pin is arranged in the small disc spring group; and another acute angle part of the inner clamping plate II is hinged with the other end of the small disc spring group through the pin shaft. The horizontal guide device of the polar crane is provided with the small disc spring group with the shear pin so as to increase the limit bearing load of the device and avoid deformation of disc spring components, still can be used normally after an earthquake, and is suitable for a nuclear power station.

Description

technical field [0001] The invention relates to a horizontal guide device for ring cranes, which is applied in the hoisting machinery industry, and is especially suitable for nuclear power plants. Background technique [0002] At present, the horizontal guide device of the ring crane (ring crane) used in the second-generation plus nuclear power plant operating in China allows the disc spring assembly to deform under the earthquake load, and the ring crane needs to be replaced before the ring crane is reused. The third-generation nuclear power plants require that the ring cranes of nuclear power plants can be put into operation without maintenance after an earthquake, which requires that the horizontal guide device not be damaged under the earthquake load. [0003] The existing EPR nuclear power ring crane horizontal guide device (Patent No. 200510129072.7) has deficiencies: [0004] (1) The double arch seat cannot guarantee uniform stress during the collision process, and i...

AI Technical Summary

Problems solved by technology

[0006] In view of the above problems, the present invention researches and designs a horizontal guide device for a ring crane, which is used to solve the problem that the existing horizontal guide device allows the disc spring assembly to deform under the action of an earthquake load, and the disc spring assembly, etc. The shortcomings of replacement, the design of the present invention can provide a more reliable horizontal guide device for the ring crane of the third generation nuclear power plant, improve the anti-seismic ability of the equipment, and provide a guarantee for the reliable and safe operation of the ring crane

Images