Superlarge double-opening steel door

Abstract

The invention discloses a superlarge double-opening steel door. The superlarge double-opening steel door comprises door leaves and a door frame. The superlarge double-opening steel door is characterized in that an upper main hinge shaft assembly, a lower main hinge shaft assembly and a multi-point linkage synchronous driving mechanism are arranged between the door leaves and the door frame, and the multi-point linkage synchronous driving mechanism is used for driving the door leaves to rotate; the lower main hinge shaft assembly is used for centering in the radial direction, and bearing the whole load of the single door, and the upper main hinge shaft assembly is used for bearing the radial action force of the single door; the lower part of each door leaf is provided with a support pier, and each support pier is connected with the lower main hinge shaft assembly and is used for supporting the lower main hinge shaft assembly; at least three groups of auxiliary hinge shaft assemblies are arranged between the upper main hinge shaft assembly and the lower main hinge shaft assembly; the multi-point linkage synchronous driving mechanism comprises at least three groups of spiral hydraulic rotary driving cylinders and a synchronous control device, the spiral hydraulic rotary driving cylinders synchronously work, a cross slide block coupling is connected between each spiral hydraulic rotary driving cylinder and the corresponding door leaf, each spiral hydraulic rotary driving cylinder is connected with a rotary encoder for sampling, and the output end of the rotary encoder is connected with the synchronous control device. The superlarge double-opening steel door has the advantages that the structure is simple, the appearance is attractive and elegant, the single door can flexibly rotate, and the working is stable and reliable.

Description

technical field [0001] The invention relates to the technical field of doors, in particular to an extra-large double-leaf steel door with a weight of 50 tons. Background technique [0002] At present, large-scale double-opening steel doors are not common in the prior art. Therefore, the traditional design has always been used for its opening and closing structure and door hinge structure, that is, two upper and lower door hinges are set between the door body and the door frame. , in order to improve the coaxiality of the upper and lower door hinges, a rotating shaft that runs through the upper and lower door hinges is generally provided, and the door leaf is pulled by the motor traction wire rope. For this reason, those skilled in the art have improved it, as the Chinese patent application number is 200420115977.X, a kind of hinge and locking support device of door leaf, it comprises hinge and locking support two parts; Locking support part is installed in large The lower c...

AI Technical Summary

Problems solved by technology

The improvement of this patented structure is to shorten the opening and closing time of the gate, but its disadvantage is that it can only be used on relatively light gates. Both the design of the body hinge and the power device that drives the door to open and close have great deficiencies.

Because it has very high requirements on the coaxiality of the door hinges, a slight deviation will make the door unable to open or close, or even damage the door.

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