Novel linear motor rotor

Abstract

The invention discloses a novel linear motor rotor comprising a rotor upper connector, a rotor lower connector and a spindle. The rotor upper connector is connected on the upper end of the spindle. The rotor lower connector is connected on the lower end of the spindle. Magnetic conductive rings and magnets are arranged on the spindle in turn. The part between the rotor upper connector and the rotor lower connector is divided into multiple units along an axial direction. The end part of each unit is provided with a positioning magnetic conductive ring which abuts against the spindle. The rotor assembly is sectioned so that clearance control can be easily guaranteed in assembling; the axial force generated by the magnet in each unit is transmitted to the spindle through the positioning magnetic conductive ring so that the transmission force of the spindle is transmitted to the magnet of each unit, the transmission force of the spindle can be shared and the service life of the linear motor can be prolonged; and troubleshooting can be started from each unit firstly when the unqualified situation is discovered in detection so that the detection time can be effectively reduced and the workload can be greatly reduced.

Description

technical field [0001] The invention relates to a linear motor, in particular to a novel linear motor mover. Background technique [0002] Linear motor is a transmission device that directly converts electrical energy into linear motion mechanical energy without any intermediate conversion mechanism. It can be regarded as a rotating motor cut radially and developed into a plane. The side evolved from the stator is called the primary, and the side evolved from the rotor is called the secondary. In practice, the primary and secondary are manufactured to different lengths to ensure that the coupling between the primary and secondary remains constant over the required travel range. Linear motors can be short primary and long secondary, or long primary and short secondary. Considering the manufacturing cost and operating cost, take the linear induction motor as an example: when the primary winding is connected to the AC power supply, a traveling wave magnetic field will be gen...

AI Technical Summary

Problems solved by technology

However, the current linear motor movers have the following disadvantages: 1. The mover assembly is a whole, and it is necessary to ensure the gap control during assembly. The longer the mover assembly is, the more difficult it is to ensure the gap control, which makes the assembly 2. The axial force generated by the magnet is transmitted to the mandrel through the positioning magnetic guide ring. The closer to the bottom, the greater the transmission force of the mandrel, and the easier the magnet at that part is damaged, while the magnet at the top is still intact Yes, this will have a great impact on the life of the linear motor; 3. If it is found to be unqualified during the inspection, it is difficult to find out the unqualified magnets. It is necessary to disassemble all the mover assemblies and inspect them one by one. It is a lot of work, and the magnetic force of the magnet is very strong, so it is very difficult to separate the two adjacent magnets

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