Automatic nut loosening and tightening device for reaction kettle

Abstract

The invention discloses an automatic nut loosening and tightening device for a reaction kettle. The automatic nut loosening and tightening device comprises nut loosening parts and first driving mechanisms capable of being operated remotely. The nut loosening parts and the nuts of a reaction kettle cover are same in quantity, and each nut loosening part is in fit confection to each nut; the first driving mechanisms drive one nut loosening and tightening part to rotate, so that the nut is loosened and tightened. The loosening and tightening parts are acted to the nuts, separately, and the firstdriving mechanisms drive the nut loosening and tightening parts to rotate, so that the nuts are assembled automatically, and therefore, the manual disassembling complexity and the technique in the operating process are avoided effectively. Meanwhile, each position fastened by the reaction kettle cover is stressed uniformly by means of automatic assembly, so that the sealing property of the kettlecover is guaranteed.

Description

technical field [0001] The invention relates to an automatic nut tightening device, in particular to a nut tightening device for a reaction kettle used in a stress corrosion test. Background technique [0002] The experimental kettle is generally composed of a kettle body and a kettle cover. It is particularly cumbersome to manually disassemble or fasten the fastening nuts of the kettle body and the kettle cover. The experimental kettle generally has strict requirements on airtightness. When tightening the kettle cover nuts, the surrounding nuts Uniform force, pay special attention to fastening the nuts at the opposite corners at the same time to ensure airtightness. In addition, in some experiments, the sample itself has a certain amount of radiation, so that the operator cannot operate at close range. [0003] Stress corrosion test equipment is generally aimed at testing materials in corrosive medium environments, while high-temperature and high-pressure autoclaves are a s...

AI Technical Summary

Problems solved by technology

At present, the high-temperature and autoclave generally adopts the connection mode of the kettle body and the kettle cover through screw threads or bolts and nuts, and the kettle body and the kettle cover are sealed by a hard seal. In this case, it is required that the kettle cover and the kettle body are evenly connected In the process of regular disassembly and assembly of the kettle cover, the cumbersome shortcomings of manual operation are highlighted, and it also puts forward requirements for skills in the actual process of fastening bolts.

At present, most test equipment manufacturers basically use a manual torque wrench to manually disassemble the kettle cover. For many experiments with radiation in the operating environment, there is currently no remote operation solution.

Images