Easy-to-detach rotor anti-loosening device and centrifugal mixer provided with same

Abstract

The invention discloses an easy-to-detach rotor anti-loosening device and a centrifugal mixer provided with the same, and belongs to the technical field of mechanical design. The rotor anti-loosening device comprises ball screws, locking nuts, rotating pieces and a rotating base, wherein installation holes and locking holes are formed in the rotating pieces, and connecting studs are arranged on the rotating base; threaded holes are formed in the locking nuts, the ball screws are connected with the threaded holes, and the lower end portions of the ball screws protrude out of the lower surfaces of the locking nuts; and the locking nuts are in threaded connection with the connecting studs penetrating through the installation holes, the end portion of one ball screw abuts against the interior of one locking hole, and the end portions of the other ball screws abut against the end surfaces of the rotating pieces and press the rotating pieces. The device not only can effectively prevent a rotor from loosening in a high-speed rotation process, but also is easy to install and detach, and parts on a main shaft are convenient to replace.

Description

technical field [0001] The invention relates to the technical field of mechanical design, in particular to an easily detachable rotor anti-loosening device and a centrifugal mixer equipped with the device. Background technique [0002] For the convenience of manufacture and installation, the rotors of most rotating machines such as centrifuges are not of a one-piece structure, but are composed of a mandrel and multiple parts fitted on the mandrel. Due to the different diameters of the mandrel and the fitting parts on it, the deformation caused by the centrifugal force is also different, so the connection structure is often loosened during the operation of the equipment, which in turn leads to safety hazards during high-speed rotation. At present, the most commonly used way to prevent loosening is interference fit. In interference fit, the hole diameter of the jacket part is smaller than the shaft diameter at the mandrel journal, so the interference fit has the disadvantages ...

AI Technical Summary

Problems solved by technology

However, when this connection method is adopted, due to the vibration of the rotor during high-speed operation or the impact generated by the motor braking, the fixing parts are easily loosened due to the force, which is likely to cause safety hazards when the rotor rotates at high speed.

Therefore, in the actual use process, tools are generally used for force locking, and installation and disassembly are very troublesome. At the same time, since the use of tools for force locking cannot give the user a clear indication of the locking force, it is easy to install and disassemble. Due to the individual differences of the users, the fixing parts are damaged, failed or cannot be disassembled due to improper force application

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