Stator sectioned staggering type outer rotor direct drive permanent magnet motor for belt conveyors
A technology of belt conveyors and permanent magnet motors, which is applied in the direction of electromechanical devices, magnetic circuits, electrical components, etc., can solve the problems of large torque pulsation and imperfect fault tolerance performance of permanent magnet motors, so as to ensure stable operation and suppress rotation Torque pulsation, uniform heat dissipation effect
Pending Publication Date: 2019-08-30
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology
[0006] In view of the above technical problems, the present invention provides a stator segment dislocation type outer rotor direct-drive permanent magnet motor for belt conveyors, which solves the problem of large torque ripple and imperfect fault tolerance when the permanent magnet motor operates at low speed and other technical problems and heat dissipation problems of permanent magnet motors at low speeds
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[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0024] The stator segmental dislocation type outer rotor direct drive permanent magnet motor used for belt conveyors includes a drum, a hub 4 and an axial through-type water cooling system. The hub 4 is installed at both ends of the drum, and the inside of the drum includes the outer rotor 1 and The inner stator 2, the inner stator 2 is composed of inner stator modules 5 distributed axially along the stator fixed shaft 3, the inner stator modules 5 are distribu...
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The invention belongs to the technical field of permanent magnet motors, and particularly relates to a stator sectioned staggering type outer rotor direct drive permanent magnet motor for belt conveyors. The motor comprises a drum, hubs and an axial straight-through water cooling system. The hubs are installed at the two ends of the drum. The drum includes an outer rotor and an inner stator inside. The inner stator is composed of at least two inner stator modules axially distributed along the fixed axis of the stator. Each inner stator module is composed of salient poles distributed circularly, and the salient poles are wound with an excitation winding. Epoxy plates are arranged between the inner stator modules. The outer rotor is composed of axially distributed outer rotor modules fittingthe inside of the drum. The torque ripple is restrained and the fault-tolerant ability of the motor under a fault state is enhanced by stator sectioned staggering, and the axial straight-through water cooling system enables the heat of the motor to be dissipated uniformly. The motor of the invention is applied to mechanical equipment running at low speed such as belt conveyors.
Description
technical field [0001] The invention belongs to the technical field of permanent magnet motors, and in particular relates to a stator segmental dislocation type outer rotor direct-drive permanent magnet motor for belt conveyors. Background technique [0002] At present, the belt conveyor mainly adopts the traditional motor-reducer transmission mode, that is, "motor + coupling (hydraulic coupling) + reducer + roller". This transmission system has many disadvantages: 1) Due to the asynchronous Due to the limitation of the starting torque of the motor and the maximum torque multiple, it is often necessary to select a motor with 1.5 to 2 times the rated load for the belt conveyor, but in normal operation, the motor will run at a light load state, so that its efficiency and power factor are average If it is very low, the efficiency of the entire transmission system cannot be guaranteed; 2) There are many intermediate links in energy transmission, which reduces the transmission ef...
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IPC IPC(8): H02K1/18H02K1/20H02K1/27H02K9/19
CPCH02K1/187H02K1/20H02K1/2786H02K9/19H02K2201/15
Inventor 袁媛孟文俊张骉苏金虎孙晓霞姚峰林
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY