Outer door opening and closing structure for large high and low temperature environmental test chamber

Abstract

The invention discloses an outer door opening and closing structure for a large high and low temperature environmental test chamber, and belongs to the technical field of large high and low temperature test chamber outer door driving. The outer door opening and closing structure for the large high and low temperature environmental test chamber comprises a doorframe, a top horizontal rail, a bottom horizontal rail, a door leaf, a door leaf moving framework, a door leaf horizontal movement driving mechanism and door leaf vertical driving mechanisms. The doorframe is fixed to the outer framework of the test chamber, the top horizontal rail is arranged on the outer framework on the upper portion of the doorframe, the bottom horizontal rail is arranged on the ground below the doorframe, the size of the door leaf is matched with that of the doorframe, the door leaf moving framework is hinged to the outer side of the door leaf, the door leaf horizontal movement driving mechanism is fixedly connected to the door leaf moving framework, and the door leaf vertical driving mechanisms are evenly distributed on the door leaf moving framework. Through the combined function of the door leaf horizontal movement driving mechanism and the door leaf vertical driving mechanisms, the function of opening and closing an outer door and the function of heat preservation and sealing in the work process are achieved.

Description

technical field [0001] The invention relates to the technical field of high and low temperature environment simulation tests, in particular to an opening and closing structure for an outer door of a large high and low temperature test chamber. Background technique [0002] The large-scale high and low temperature environment simulation test chamber has an important application in the ground thermal test of aerospace equipment. Today, the size of aerospace test equipment and devices is increasing, and it must be frequently entered and exited from the high and low temperature test chamber during the test. Therefore, the size of the outer door of the test chamber has also been expanded to 5×5m 2 Even bigger, when the pressure difference between the inside and outside of the high and low temperature environment simulation test chamber remains unchanged, the continuously expanding outer door increases the pressure on the outer door of the high and low temperature environment sim...

AI Technical Summary

Problems solved by technology

The outer door of a large-scale high and low temperature environment simulation test chamber is large and heavy, and it is difficult to manually open and close the outer door, and the contact surface between the door frame and the door leaf of the outer door is large. The door leaf is compressed, and the sealing performance of the entire outer door cannot be guaranteed

Therefore, the existing design cannot meet the requirements of high strength and high sealing performance of the outer door opening and closing structure of the large-scale high and low temperature test chamber, so it needs to be redesigned

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