CN103193142A - Magnetic suspension bearing disc type elevator traction machine - Google Patents

Magnetic suspension bearing disc type elevator traction machine Download PDF

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Publication number
CN103193142A
CN103193142A CN2013101030349A CN201310103034A CN103193142A CN 103193142 A CN103193142 A CN 103193142A CN 2013101030349 A CN2013101030349 A CN 2013101030349A CN 201310103034 A CN201310103034 A CN 201310103034A CN 103193142 A CN103193142 A CN 103193142A
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CN
China
Prior art keywords
magnetic suspension
suspension bearing
rotor
stator
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2013101030349A
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Chinese (zh)
Inventor
张广明
梅磊
欧阳慧珉
宋骏琛
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Nanjing University
Nanjing University of Science and Technology
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Nanjing University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing University of Science and Technology filed Critical Nanjing University of Science and Technology
Priority to CN2013101030349A priority Critical patent/CN103193142A/en
Publication of CN103193142A publication Critical patent/CN103193142A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a magnetic suspension bearing disc type elevator traction machine which comprises a stator shaft, a motor stator, a motor rotor, a magnetic suspension bearing stator, a magnetic suspension bearing rotor, a traction wheel and a motor. The magnetic suspension bearing disc-type elevator traction machine has the advantages of simplifying a structure of a traction machine, enabling a disc-type switch reluctance machine to be high in power density and efficiency, flexible in control method, high in stepless speed regulation efficiency and the like due to the fact that the elevator traction wheel is driven by the disc-type switch reluctance machine to rotate, reducing the energy consumption of the traction machine and achieving the effects of energy conservation and emission reduction due to the facts that no mechanical friction is between the stator and the rotor of the traction machine and the traction wheel can be driven by a small power motor to rotate due to the utilization of the magnetic suspension bearing.

Description

A kind of magnetic suspension bearing disc type elevator traction machine
Technical field
The invention belongs to towing machine, relate in particular to a kind of magnetic suspension bearing disc type elevator traction machine.
Background technology
The hoisting motor of elevator has alternating-current motor/AC motor and DC motor, and hoisting motor is to drive the propulsion source that elevator moves up and down.Elevator is typical potential energy load.According to the job specification of elevator, the elevator traction electrical motor should have following characteristics:
1, can start continually and brake: elevator is in operation and per hour plays the braking number of times often above 100 times, can reach per hour 180~240 times, and therefore, the elevator definite-purpose motor should be able to frequently rise, brake, and its mode of operation is interruption period sex work system.
2, starting current is less: with on the design of the cage motor of alternating-current motor/AC motor and making, though still adopt the low-resistance coefficient material to make sliver, the short-circuited conducting sleeve of rotor is but made of the high resistivity material, and the rotor winding resistance is increased at elevator.Like this, reduce starting current on the one hand, made starting current reduce to about 2.5~3.5 times of rated current, thereby increased the number of starts that per hour allows; On the other hand, because just the rotor short-circuit end-ring resistance is bigger, is beneficial to heat and directly distributes, resultant effect makes electrical motor Temperature riseDescend to some extent.And guaranteed enough starting torques, be generally about 2.5 times of torque rating.But, compare with common AC motor, its mechanical specialities hardness and efficient descend to some extent, and the revolutional slip revolutional slip also brings up to 0.1~0.2.The mechanical specialities deliquescing increases speed adjustable range, and when working under stalling torque, also the unlikely motor that burns.
3, the electrical motor running noises is low: in order to reduce the electrical motor running noises, adopt plain bearing.In addition, suitably strengthen effective external diameter of stator core, and all do reasonable processing at aspects such as stator core stamping plate shapes.
Be used for the weight that the bearing of elevator traction machine will bear lift car, balance weight and passenger, present bearing all is mechanical bearing, so big pressure causes the friction force of bearing inside very big, and motor need overcome this part friction force and could drive traction sheave rotation, causes the energy consumption of total system to increase.
Dial switch reluctance motor principal feature is power density height, efficient height, flexible, the efficient infinite speed variation of control method, electric machine structure is firmly compact, the power to volume ratio height, overload capacity is big, and body is thin, reliable, the axial magnetic field dial switch reluctance motor of the flat structure of good heat dissipation effect is suitable for high-speed cruising, and low, the dependable performance of the simple cost of driving circuit, all than higher, and can realize four-quadrant control easily in the range of speed internal efficiency of broadness.
Along with the progress of epoch and science and technology, the application of elevator more and more widely, the harshness of elevator requirements for quality also highlights day by day, and at present on the market elevator traction machine has been difficult to satisfy market to the demand of high quality low-power consumption towing machine.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of magnetic suspension bearing disc type elevator traction machine, be intended to solve mechanical type bearing that present elevator traction machine adopts and cause that bearing internal friction power is very big to cause the machine operation power consumption big, the functional effect of the motor that adopts is unsatisfactory, has been difficult to satisfy market to the problem of the demand of high quality low-power consumption towing machine.
The embodiment of the invention is achieved in that a kind of magnetic suspension bearing disc type elevator traction machine, comprising: stator axis, motor stator, rotor, magnetic suspension bearing stator, magnetic suspension bearing rotor, traction sheave, motor; Described motor stator and described magnetic suspension bearing stator are fixed on the described stator axis, and correspondence arranges described rotor and described magnetic suspension bearing rotor;
Described traction sheave internal sleeve is equipped with described magnetic suspension bearing rotor, realizes that by the magnetic field suction between described magnetic suspension bearing stator, the described magnetic suspension bearing rotor five degree of freedom suspends; Described traction sheave both sides are equipped with described rotor, make described traction sheave rotation by the magnetic field suction between described motor stator, the described rotor;
Described motor is made up of described rotor and described motor stator, drives described traction sheave rotation.
Further, there is air gap, gas length 0.2-2mm between described magnetic suspension bearing stator and the described magnetic suspension bearing rotor; There is air gap, gas length 0.2-2mm between described motor stator and the described rotor.
Further, the air gap of described dial switch reluctance motor is axial arranged, and stator and rotor are salient-pole structure, are wound with winding on the stator tooth.Utilize not waiting of magnetic resistance, magnetic flux is the characteristics in the little Route Set of magnetic resistance always, and the stator of energising makes magnetic force produce tangential component with the ferromagnetic rotor of magnetic attraction, namely produces the torque to rotor.
The present invention adopts the dial switch reluctance motor to drive the rotation of elevator traction wheel, has not only simplified the towing machine structure, and the dial switch reluctance motor has premium properties such as power density height, efficient height, flexible, the efficient infinite speed variation of control method.
Description of drawings
Fig. 1 is magnetic suspension bearing disc type elevator traction machine section-drawing provided by the invention.
Label title among Fig. 1: 1, traction sheave; 2, rotor; 3, motor stator; 4, stator axis; 5, magnetic suspension bearing stator; 6, magnetic suspension bearing rotor.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
Fig. 1 shows the structural representation of magnetic suspension bearing disc type elevator traction machine provided by the invention.For convenience of explanation, only show part related to the present invention.
A kind of magnetic suspension bearing disc type elevator traction machine comprises: stator axis 4, motor stator 3, rotor 2, magnetic suspension bearing stator 5, magnetic suspension bearing rotor 6, traction sheave 1, motor; Described motor stator 3 and described magnetic suspension bearing stator 5 are fixed on the described stator axis 4, and correspondence arranges described rotor 2 and described magnetic suspension bearing rotor 6; Described traction sheave 1 internal sleeve is equipped with described magnetic suspension bearing rotor 6, realizes that by the magnetic field suction between described magnetic suspension bearing stator 5, the described magnetic suspension bearing rotor 6 five degree of freedom suspends; Described traction sheave 1 both sides are equipped with described rotor 2, make described traction sheave 1 rotation by the magnetic field suction between described motor stator 3, the described rotor 2; Described motor is made up of described rotor 2 and described motor stator 3, drives described traction sheave 1 rotation.
The present invention utilizes not waiting of magnetic resistance, and magnetic flux is the characteristics in the little Route Set of magnetic resistance always, and the motor stator of energising makes magnetic force produce tangential component with the ferromagnetic rotor of magnetic attraction, namely produces the torque to rotor, and rotor is rotated.
There is air gap, gas length 0.2-2mm between described magnetic suspension bearing stator 5 and the described magnetic suspension bearing rotor 6; There is air gap, gas length 0.2-2mm between described motor stator 3 and the described rotor 2.During work, 5 pairs of described magnetic suspension bearing rotors 6 of described magnetic suspension bearing stator produce suction, and described magnetic suspension bearing rotor 6 is suspended.
Described motor adopts the dial switch reluctance motor, and the air gap of described dial switch reluctance motor is axial arranged, and stator and rotor are salient-pole structure, are wound with winding on the stator tooth.
When the present invention works, become magnetic suspension state between described magnetic suspension bearing stator 5 and the described magnetic suspension bearing rotor 6, do not have mechanical friction.
Dial switch reluctance motor principal feature is power density height, efficient height, flexible, the efficient infinite speed variation of control method, electric machine structure is firmly compact, the power to volume ratio height, overload capacity is big, and body is thin, reliable, the axial magnetic field dial switch reluctance motor of the flat structure of good heat dissipation effect is suitable for high-speed cruising, and low, the dependable performance of the simple cost of driving circuit, all than higher, and can realize four-quadrant control easily in the range of speed internal efficiency of broadness.The present invention adopts the dial switch reluctance motor to drive the rotation of elevator traction wheel, has not only simplified the towing machine structure, and the dial switch reluctance motor has premium properties such as power density height, efficient height, flexible, the efficient infinite speed variation of control method.
Be used for the weight that the bearing of elevator traction machine will bear lift car, balance weight and passenger, present bearing all is mechanical bearing, so big pressure causes the friction force of bearing inside very big, and motor need overcome this part friction force and could drive traction sheave rotation, causes the energy consumption of total system to increase.If the employing magnetic suspension bearing does not have mechanical friction between the stator and rotor of towing machine, the less motor of a power demand just can drive the traction sheave rotation, has reduced the energy consumption of towing machine, has reached the effect of energy-saving and emission-reduction.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (3)

1. a magnetic suspension bearing disc type elevator traction machine is characterized in that, comprising: stator axis, motor stator, rotor, magnetic suspension bearing stator, magnetic suspension bearing rotor, traction sheave, motor;
Described motor stator and described magnetic suspension bearing stator are fixed on the described stator axis, and correspondence arranges described rotor and described magnetic suspension bearing rotor;
Described traction sheave internal sleeve is equipped with described magnetic suspension bearing rotor, realizes that by the magnetic field suction between described magnetic suspension bearing stator, the described magnetic suspension bearing rotor five degree of freedom suspends; Described traction sheave both sides are equipped with described rotor, make described traction sheave rotation by the magnetic field suction between described motor stator, the described rotor;
Described motor is made up of described rotor and described motor stator, drives described traction sheave rotation.
2. magnetic suspension bearing disc type elevator traction machine as claimed in claim 1 is characterized in that, has air gap, gas length 0.2-2mm between described magnetic suspension bearing stator and the described magnetic suspension bearing rotor; There is air gap, gas length 0.2-2mm between described motor stator and the described rotor.
3. magnetic suspension bearing disc type elevator traction machine as claimed in claim 1, it is characterized in that described motor adopts the dial switch reluctance motor, the air gap of described dial switch reluctance motor is axial arranged, stator and rotor are salient-pole structure, are wound with winding on the stator tooth.5 pairs of described magnetic suspension bearing rotors 6 of described magnetic suspension bearing stator produce suction, and described magnetic suspension bearing rotor 6 is suspended.
CN2013101030349A 2013-03-28 2013-03-28 Magnetic suspension bearing disc type elevator traction machine Pending CN103193142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013101030349A CN103193142A (en) 2013-03-28 2013-03-28 Magnetic suspension bearing disc type elevator traction machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013101030349A CN103193142A (en) 2013-03-28 2013-03-28 Magnetic suspension bearing disc type elevator traction machine

Publications (1)

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CN103193142A true CN103193142A (en) 2013-07-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105226876A (en) * 2015-09-21 2016-01-06 苏州润吉驱动技术有限公司 A kind of magnetic suspension external rotor elevator traction machine
US10850945B2 (en) 2014-05-14 2020-12-01 Otis Elevator Company Traction geared machine for elevator

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11341734A (en) * 1998-05-22 1999-12-10 Mitsubishi Electric Corp Disk type motor
CN1414687A (en) * 2002-05-31 2003-04-30 沈阳工业大学 Axial controllable magnetic suspension permanent magnet disk type blood pump motor
CN101414772A (en) * 2008-11-28 2009-04-22 江苏大学 High speed electric principal shaft system supported by five-freedom-degree AC magnetic bearing
CN101764460A (en) * 2008-10-28 2010-06-30 卓向东 Outer roller axial magnetic suspension motor
CN102684365A (en) * 2012-05-08 2012-09-19 江苏大学 Flywheel energy storage device adopting bearingless switched reluctance motor
CN102897635A (en) * 2011-07-27 2013-01-30 株式会社日立制作所 Thin type winding engine and elevator apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11341734A (en) * 1998-05-22 1999-12-10 Mitsubishi Electric Corp Disk type motor
CN1414687A (en) * 2002-05-31 2003-04-30 沈阳工业大学 Axial controllable magnetic suspension permanent magnet disk type blood pump motor
CN101764460A (en) * 2008-10-28 2010-06-30 卓向东 Outer roller axial magnetic suspension motor
CN101414772A (en) * 2008-11-28 2009-04-22 江苏大学 High speed electric principal shaft system supported by five-freedom-degree AC magnetic bearing
CN102897635A (en) * 2011-07-27 2013-01-30 株式会社日立制作所 Thin type winding engine and elevator apparatus
CN102684365A (en) * 2012-05-08 2012-09-19 江苏大学 Flywheel energy storage device adopting bearingless switched reluctance motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10850945B2 (en) 2014-05-14 2020-12-01 Otis Elevator Company Traction geared machine for elevator
CN105226876A (en) * 2015-09-21 2016-01-06 苏州润吉驱动技术有限公司 A kind of magnetic suspension external rotor elevator traction machine

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Application publication date: 20130710

C02 Deemed withdrawal of patent application after publication (patent law 2001)