CN109921602A - Magnetic coupling delay start method and delaying type magnetic coupling - Google Patents
Magnetic coupling delay start method and delaying type magnetic coupling Download PDFInfo
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- CN109921602A CN109921602A CN201910276894.XA CN201910276894A CN109921602A CN 109921602 A CN109921602 A CN 109921602A CN 201910276894 A CN201910276894 A CN 201910276894A CN 109921602 A CN109921602 A CN 109921602A
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- conductor disc
- fixed disk
- positioning sleeve
- magnet
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- 230000008878 coupling Effects 0.000 title claims abstract description 37
- 238000010168 coupling process Methods 0.000 title claims abstract description 37
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000004020 conductor Substances 0.000 claims abstract description 69
- 230000009977 dual effect Effects 0.000 claims abstract description 13
- 230000006698 induction Effects 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 3
- 230000003139 buffering effect Effects 0.000 claims description 9
- 230000001360 synchronised effect Effects 0.000 claims description 4
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 19
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
Abstract
The magnetic coupling delay start method for postponing buffer function is played in startup stage the invention discloses a kind of pair of load equipment, it is characterized in that when starting, when the permanent magnet connecting with power machine axis rotates by a certain angle, magnetic pole is set between dual permanent-magnet to become mutually exclusive from original attracting each other, dual permanent-magnet is moved axially to corresponding conductor disc respectively, until the gap shrinks between permanent magnet and corresponding conductor disc are the working clearance, with the diminution in gap, magnetic induction force is incrementally increased；Delaying type magnetic coupling it include central axis, driven shaft connector sleeve, two positioning sleeves pass through the installation of thrust angular contact bearing on center shaft respectively, two fixed disks are mounted on two positioning sleeves by small axis, the opposite end face of two positioning sleeves is separately installed with change poles position-arresting disk, it is respectively equipped with the protrusion of interlaced arrangement on two change poles position-arresting disks, is equipped with reset spring between protrusion；The method of the present invention is feasible, and coupler structure is simple, has Soft Starting Performance to load equipment when operation, can be widely applied to belt conveyor, bucket elevator and various large inertia equipment etc..
Description
Technical field
The present invention relates to a kind of magnetic coupling, specifically a kind of magnetic coupling delay start method and delaying type
Magnetic coupling postpones more particularly to a kind of pair of load equipment in the magnetic coupling that startup stage plays delay buffer function
Starting method and delaying type magnetic coupling.
Background technique
Magnetic coupling is also referred to as magnetic coupling, permanent magnetic transmission device, mainly include conductor disc, magnet disk, magnet disk with
The axis connection of motor axis connection, conductor disc and working machine has the air gap (referred to as air gap), does not have between conductor disc and magnet disk
Transmit the mechanical connection of torque.In this way, foring soft (magnetic) connection between motor and working machine, work is realized by adjusting air gap
Make the variation of motor shaft torque, revolving speed.Because of the difference of air gap regulative mode, it is divided into standard type, delaying type, distance-limiting type, speed-regulating type etc.
Different type.
Existing known delaying type magnetic coupling, is all two-conductor disk, double magnet dish structures.Delay time is short, delay
Effect is unobvious and very limited, can not generate soft start effect for large inertia heavy load equipment, be not achieved to load equipment
Delay buffer function is played in startup stage.Meanwhile the single side of magnet has only been used in the coupling of magnet disk and conductor disc in structure,
And another side is closed the magnetic line of force with magnetic conductive steel plate, half is only utilized in the magnetic coupling performance of permanent magnet.
Document 1:
Application No. is 201510430883.4 patents to disclose a kind of radial delaying type magnetic coupling comprising conductor disc and
Magnet disk, conductor disc and magnet disk are around common axis and respectively can independently rotating, the conductor disc of rotation and in magnet disk
The variable induced magnetic field force that the magnet disk for the magnet that can be slid is generated by air gap, variable torsion is driven by magnetic coupling
Square.Conductor disc and driving axis connection, overcome the pulling force of spring and circumferencial direction slides outwardly along radial direction, at this time with magnetic
The magnetic coupling region of body and conductor disc increases, and magnetic induction intensity increases, and magnetic induction torque caused by magnetic field force is also corresponding
It is slowly increased, so that load torque is slowly increased, loading speed is also slowly increased therewith, thus extends equipment
Start the time, plays the role of one to load working machine and slowly start, for some large inertia weights for needing soft-start feature
The starting of type equipment provides a simple and easy method.But structure, processing complexity.
Summary of the invention
The magnetic coupling for postponing buffer function is played in startup stage the object of the present invention is to provide a kind of pair of load equipment
Device delay start method and delaying type magnetic coupling.
The present invention, which adopts the following technical scheme that, realizes its goal of the invention, a kind of magnetic coupling delay start method,
The magnetic coupling is two-conductor disk, dual permanent-magnet structure；The initial position of dual permanent-magnet keeps certain distance to make double permanent magnetism
Magnetic pole attracts each other between body；When starting, when the permanent magnet connecting with power machine axis rotates by a certain angle, make between dual permanent-magnet
Magnetic pole becomes mutually exclusive from original attracting each other, and dual permanent-magnet is moved axially to corresponding conductor disc respectively, until permanent magnetism
Gap shrinks between body and corresponding conductor disc are the working clearance；In this way, changing gap between permanent magnet and corresponding conductor disc
During, with the diminution in gap, magnetic induction force is incrementally increased, so that the torque of driving load is consequently increased, is born
It carries with the speed of engine also therewith gradually close to synchronous, achievees the purpose that extension equipment starts the time.
A kind of delaying type magnetic coupling, it includes central axis, driven shaft connector sleeve, the first positioning sleeve, the second positioning sleeve
Respectively on center shaft by the installation of thrust angular contact bearing, the first fixed disk is mounted on the first positioning sleeve by the first small axis
On, the second fixed disk is mounted on the second positioning sleeve by the second small axis；Both first positioning sleeve, the second positioning sleeve are opposite
End face is separately installed with the first change poles position-arresting disk, the second change poles position-arresting disk, and the first change poles position-arresting disk is raised equipped with first, and second
Change poles position-arresting disk is equipped with the second protrusion, interlaced arrangement between the first protrusion and the second protrusion, according to the rotation side of the first positioning sleeve
To equipped with reset spring between the first protrusion and the second protrusion；Make the first positioning sleeve before rotation, first in the first fixed disk
Permanent magnet pole attracts each other with the second permanent magnet pole in the second fixed disk, when the first positioning sleeve drives lower gram in engine
It when taking the rotation of reset spring elastic force, is limited by the second protrusion, fixes the first permanent magnet pole in the first fixed disk and second
The second permanent magnet magnetic grade homopolarity on disk corresponds to mutually exclusive, and the first fixed disk is moved axially to the first conductor disc, and second is fixed
Disk is moved axially to the second conductor disc, make between the first permanent magnet and the first conductor disc, the second permanent magnet and the second conductor disc it
Between gap shrinks be the working clearance.
In the case that load occurs overloading or being stuck suddenly, for protection engine and driving member, driven shaft of the present invention connects
It connects disk to be mounted on driven shaft connector sleeve, by connection axis connection, the first conductor disc, second are led for driven shaft terminal pad and ring flange
Body disc passes through the both ends that linear bearing is mounted on connecting shaft respectively.
To further increase Soft Starting Performance, it is equipped between the first positioning sleeve of the present invention, the first fixed disk and is mounted on first
Buffering delay spring on small axis, is equipped with the buffering delay being mounted on the second small axis between the second positioning sleeve, the second fixed disk
Spring.
Due to the adoption of the above technical scheme, the present invention preferably realizes goal of the invention, and method is feasible, delaying type magnetic force
Coupler structure is simple, has Soft Starting Performance to load equipment when operation, guarantees the normal operation of equipment, extend equipment
Service life can be widely applied to belt conveyor, bucket elevator and various large inertia equipment etc..
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the prior art；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is the structural schematic diagram before change poles of the present invention；
Fig. 4 is the structural schematic diagram of change poles position-arresting disk before change poles of the present invention；
Fig. 5 is the structural schematic diagram after change poles of the present invention；
Fig. 6 is the structural schematic diagram of change poles position-arresting disk after change poles of the present invention；
Structural schematic diagram when Fig. 7 is present invention overload.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figure 1, existing known magnetic coupling, is all two-conductor disk, double magnet dish structures.First permanent magnet 4,
Second permanent magnet 6 is connect by hollow square shaft 27 with driving shaft connector sleeve 20, and both the first permanent magnet 4, second permanent magnet 6 are opposite
End face be equipped with shielding steel plate 26；Second conductor disc 8 is mounted on driven shaft connector sleeve 12, and the first conductor disc 3 passes through company
Fishplate bar 28 is connect with the second conductor disc 8.
Gap tune when work, between the first permanent magnet 4 and the first conductor disc 3, the second permanent magnet 6 and the second conductor disc 8
Whole to arrive optimal working clearance, driving shaft connector sleeve 20 is driven by engine to be rotated, and drives the first permanent magnet by hollow square shaft 27
4, the second permanent magnet 6 rotates, and the first conductor disc 3, the second conductor disc 8 synchronous rotary under magnetic induction force effect pass through driven shaft
Connector sleeve 12 passes torque to working machine, completes torque transmitting.
In the case that load occurs overloading or being stuck suddenly, the first conductor disc 3,8 velocity of rotation of the second conductor disc are sharply
Drop to zero, and the first permanent magnet 4, the second permanent magnet 6 that connect with power end continue to rotate by rated speed, between the two
Relative speed difference generates eddy current field, and eddy current field generates resistance magnetic induction force and distinguishes the first permanent magnet 4, the second permanent magnet 6
It is pushed open to far from the first conductor disc 3,8 direction of the second conductor disc, widens gap (air gap) between the two, the first permanent magnet 4
Magnetic induction force between the first conductor disc 3, the second permanent magnet 6 and the second conductor disc 8 dies down, thus the torsion of load and engine
Square transmitting separation, realizes the purpose of protection engine and driving member.
The magnetic coupling carryover effects are unobvious and very limited, can not generate soft open for large inertia heavy load equipment
Dynamic effect, is not achieved and plays delay buffer function in startup stage to load equipment.Meanwhile magnet disk and conductor disc in structure
Coupling only used the single side of magnet, and another side is closed the magnetic line of force with magnetic conductive steel plate, and the magnetic coupling performance of permanent magnet is only
Half is utilized.
A kind of magnetic coupling delay start method, the magnetic coupling are two-conductor disk, dual permanent-magnet structure；It is double forever
The initial position of magnet keeps certain distance that magnetic pole between dual permanent-magnet is made to attract each other；When starting, it is connect when with power machine axis
Permanent magnet rotate by a certain angle, so that magnetic pole is become mutually exclusive from original attracting each other, dual permanent-magnet
It is moved axially respectively to corresponding conductor disc, until the gap shrinks between permanent magnet and corresponding conductor disc are the working clearance；This
Sample, during changing gap between permanent magnet and corresponding conductor disc, with the diminution in gap, magnetic induction force is incrementally increased,
So that the torque of driving load is consequently increased, load, also therewith gradually close to synchronous, reach and prolongs with the speed of engine
The purpose of long equipment starting time.
By Fig. 2, Fig. 4 it is found that a kind of delaying type magnetic coupling using the above method, it includes central axis 15, driven
Axis connection set 12, the first positioning sleeve 19, the second positioning sleeve 16 are mounted on central axis 15 by thrust angular contact bearing 17 respectively,
First fixed disk 5 is mounted on the first positioning sleeve 19 by the first small axis 1, and the second fixed disk 7 is mounted on by the second small axis 18
On second positioning sleeve 16；The opposite end face of both first positioning sleeve 19, the second positioning sleeves 16 is separately installed with the first change poles limit
Position disk 13, the second change poles position-arresting disk 14, the first change poles position-arresting disk 13 are equipped with the first protrusion 21, set on the second change poles position-arresting disk 14
There is the second protrusion 25, interlaced arrangement between the first protrusion 21 and the second protrusion 25, according to the direction of rotation of the first positioning sleeve 19, first
Reset spring 22 is equipped between protrusion 21 and the second protrusion 25；Before rotating the first positioning sleeve 19, first in the first fixed disk 5
4 magnetic pole of permanent magnet attracts each other with the 6 magnetic grade of the second permanent magnet in the second fixed disk 7, when the first positioning sleeve 19 overcomes reset bullet
When 22 elastic force of spring rotates, is limited by the second protrusion 25, make 4 magnetic pole of the first permanent magnet and the second fixed disk 7 in the first fixed disk 5
On 6 magnetic grade homopolarity of the second permanent magnet correspond to mutually exclusive, the first fixed disk 5 is moved axially to the first conductor disc 3, and second is fixed
Disk 7 is moved axially to the second conductor disc 8, is made between the first permanent magnet 4 and the first conductor disc 3, the second permanent magnet 6 and the second conductor
Gap shrinks between disk 8 are the working clearance.
In the case that load occurs overloading or being stuck suddenly, for protection engine and driving member, driven shaft of the present invention connects
It connects disk 11 to be mounted on driven shaft connector sleeve 12, driven shaft terminal pad 11 is connect with ring flange 2 by connecting shaft 10, the first conductor
Disk 3, the second conductor disc 8 are mounted on the both ends of connecting shaft 10 by linear bearing 9 respectively.
To further increase Soft Starting Performance, it is equipped between the first positioning sleeve 19 of the invention, the first fixed disk 5 and is mounted on the
Buffering delay spring 29 on one small axis 1, is equipped between the second positioning sleeve 16, the second fixed disk 7 and is mounted on the second small axis 18
Buffering be delayed spring 29.
To radiate, radiator is separately installed in the first conductor disc 3 of the present invention, the second conductor disc 8.
When the present embodiment is installed, engine (motor) is connect with driving shaft connector sleeve 20 first, (speed reducer is high for working machine
Fast axis) it is connect with driven shaft connector sleeve 12.
As shown in Figure 3, Figure 4, the first permanent magnet 4 presses the pole N, the pole S interlaced arrangement in the first fixed disk 5 at circle, and second forever
Magnet 6 also presses the pole N, the pole S interlaced arrangement in the second fixed disk 7 at circle.Before change poles (starting), in the first fixed disk 5
The pole S, the pole N of second permanent magnet 6 correspond in the pole N of one permanent magnet 4, the pole S and the second fixed disk 7, the first permanent magnet 4, the
The position that two permanent magnets 6 attract each other and are kept fixed.
As shown in Figure 5, Figure 6, upon start up, engine is transmitted the force to by driving shaft connector sleeve 20 and is mounted on central axis
The first positioning sleeve 19 on 15 overcomes the elastic force of the suction and reset spring 22 between the first permanent magnet 4, the second permanent magnet 6, band
Dynamic first fixed disk 5, the first change poles position-arresting disk 13 and the rotation of the first permanent magnet 4, and by second on the second change poles position-arresting disk 14
Protrusion 25 limits, and makes the N of the pole N, the pole S of the first permanent magnet 4 and the second permanent magnet 6 in the second fixed disk 7 in the first fixed disk 5
Pole, the pole S correspond, and the first permanent magnet 4, the second permanent magnet 6 are mutually exclusive.At this moment, the first fixed disk 5 overcomes buffering delay bullet
The elastic force of spring 29 moves axially on the first small axis 1 to the first conductor disc 3, and the second fixed disk 7 overcomes buffering delay spring 29
Elastic force moves axially on the second small axis 18 to the second conductor disc 8, forms work with the first conductor disc 3, the second conductor disc 8 respectively
Gap (general 3~5 ㎜).In this way, during changing gap between permanent magnet and corresponding conductor disc, with the contracting in gap
Small, magnetic induction force incrementally increases, and magnetic induction force passes torque to work by driven shaft connector sleeve 12, driven shaft terminal pad 11
Machine completes torque transmitting.Magnetic induction force incrementally increases when due to starting, achievees the purpose that extend the equipment starting time, improve
The Soft Starting Performance of equipment.
As shown in fig. 7, when load occurs in the case where overloading or being stuck suddenly, the first conductor disc 3,8 turns of the second conductor disc
Dynamic speed drops sharply to zero, and the first fixed disk 5, the second fixed disk 7 that connect with power end continue to rotate by rated speed,
Relative speed difference between the two generates magnetic induction force for the first conductor disc 3, the second conductor disc 8 respectively to far from the first permanent magnet
4,6 direction of the second permanent magnet push open (at this point, due in the first permanent magnet 4 in the first fixed disk 5 and the second fixed disk 7 second forever
6 magnetic pole homopolarity of magnet is mutually exclusive, and the first fixed disk 5, the second fixed disk 7 will be motionless), the gap for making between the two enlarges to non-
Working clearance (generally 20 ㎜) realizes protection engine and driving member so that load is separated with the transmitting of the torque of engine
Purpose.
When shutdown, the first positioning sleeve 19 loses driving force, under the action of reset spring 22, the first reversely rotation of positioning sleeve 19
Turn, the first fixed disk 5, the first change poles position-arresting disk 13 and the rotation of the first permanent magnet 4 is driven, by the on the second change poles position-arresting disk 14
Two protrusions 25 limit, and correspond the pole S on the pole N, the pole S and the second permanent magnet 6 on the first permanent magnet 4, the pole N, first forever
Magnet 4, the second permanent magnet 6 attract each other, meanwhile, in the case where buffering delay spring 29 acts on, the first fixed disk 5 is in the first small axis 1
Upper axial movement, the second fixed disk 7 move axially on the second small axis 18, make the first conductor disc 3, the second conductor disc 8 and first
Permanent magnet 4, the separation of the second permanent magnet 6 are restored to state before starting.
The method of the present invention is feasible, and delaying type magnetic coupling structure is simple, has soft start to load equipment when operation
Can, guarantee the normal operation of equipment, extend the service life of equipment, can be widely applied to belt conveyor, bucket elevator
With various large inertia equipment etc..
Claims (4)
1. a kind of magnetic coupling delay start method, the magnetic coupling is two-conductor disk, dual permanent-magnet structure；Its feature
Be dual permanent-magnet initial position keep certain distance so that magnetic pole between dual permanent-magnet is attracted each other；When starting, when with engine
The permanent magnet of axis connection rotates by a certain angle, and magnetic pole is made between dual permanent-magnet to become mutually exclusive from original attracting each other, double
Permanent magnet is moved axially to corresponding conductor disc respectively, until the gap shrinks between permanent magnet and corresponding conductor disc are workplace
Gap；In this way, with the diminution in gap, magnetic induction force is gradually during changing gap between permanent magnet and corresponding conductor disc
Increase, so that the torque of driving load is consequently increased, load, also therewith gradually close to synchronous, is reached with the speed of engine
To the purpose for extending the equipment starting time.
2. a kind of delaying type magnetic coupling, it is characterized in that it includes central axis, driven shaft connector sleeve, the first positioning sleeve, second
Positioning sleeve passes through the installation of thrust angular contact bearing on center shaft respectively, and the first fixed disk is mounted on first by the first small axis and determines
Position is put on, and the second fixed disk is mounted on the second positioning sleeve by the second small axis；Both first positioning sleeve, second positioning sleeve are opposite
End face be separately installed with the first change poles position-arresting disk, the second change poles position-arresting disk, the first change poles position-arresting disk is equipped with the first protrusion,
Second change poles position-arresting disk is equipped with the second protrusion, interlaced arrangement between the first protrusion and the second protrusion, according to the rotation of the first positioning sleeve
Turn direction, to be equipped with reset spring between the first protrusion and the second protrusion；Make the first positioning sleeve before rotation, in the first fixed disk
First permanent magnet pole attracts each other with the second permanent magnet pole in the second fixed disk, when the first positioning sleeve drives in engine
Under overcome reset spring elastic force rotate when, by second protrusion limit, make the first permanent magnet pole and second in the first fixed disk
The second permanent magnet magnetic grade homopolarity in fixed disk corresponds to mutually exclusive, and the first fixed disk is moved axially to the first conductor disc, and second
Fixed disk is moved axially to the second conductor disc, is made between the first permanent magnet and the first conductor disc, the second permanent magnet and the second conductor
Gap shrinks between disk are the working clearance.
3. delaying type magnetic coupling according to claim 2, it is characterized in that driven shaft terminal pad is mounted on driven shaft company
In female connector, by connection axis connection, the first conductor disc, the second conductor disc pass through linear axis respectively for driven shaft terminal pad and ring flange
Hold the both ends for being mounted on connecting shaft.
4. delaying type magnetic coupling according to claim 2 or 3, it is characterized in that the first positioning sleeve, the first fixed disk it
Between be equipped be mounted on the first small axis buffering delay spring, between the second positioning sleeve, the second fixed disk be equipped be mounted on second
Buffering delay spring on small axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910276894.XA CN109921602B (en) | 2019-04-08 | 2019-04-08 | Delayed starting method of magnetic coupler and delayed magnetic coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910276894.XA CN109921602B (en) | 2019-04-08 | 2019-04-08 | Delayed starting method of magnetic coupler and delayed magnetic coupler |
Publications (2)
| Publication Number | Publication Date |
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| CN109921602A true CN109921602A (en) | 2019-06-21 |
| CN109921602B CN109921602B (en) | 2023-12-29 |
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| WO2014166010A1 (en) * | 2013-04-07 | 2014-10-16 | Hu Gang | Magnet wheel |
| CN204103739U (en) * | 2014-11-05 | 2015-01-14 | 郑州大学 | A kind of soft start permanent magnet eddy current coupling |
| CN104967280A (en) * | 2015-07-21 | 2015-10-07 | 南京迪瓦机械制造有限公司 | Radial buffer-type magnetic coupler |
| CN106655705A (en) * | 2016-10-16 | 2017-05-10 | 黄佳宁 | Soft-start permanent magnetic coupler |
| CN206498314U (en) * | 2016-10-16 | 2017-09-15 | 黄佳宁 | A kind of soft start permanent magnetic coupling |
| CN208074033U (en) * | 2018-02-08 | 2018-11-09 | 江苏磁谷科技股份有限公司 | A kind of permanent magnet coupling bumper guard |
| CN209627201U (en) * | 2019-04-08 | 2019-11-12 | 湖南中特液力传动机械有限公司 | Delaying type magnetic coupling |
-
2019
- 2019-04-08 CN CN201910276894.XA patent/CN109921602B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014166010A1 (en) * | 2013-04-07 | 2014-10-16 | Hu Gang | Magnet wheel |
| CN204103739U (en) * | 2014-11-05 | 2015-01-14 | 郑州大学 | A kind of soft start permanent magnet eddy current coupling |
| CN104967280A (en) * | 2015-07-21 | 2015-10-07 | 南京迪瓦机械制造有限公司 | Radial buffer-type magnetic coupler |
| CN106655705A (en) * | 2016-10-16 | 2017-05-10 | 黄佳宁 | Soft-start permanent magnetic coupler |
| CN206498314U (en) * | 2016-10-16 | 2017-09-15 | 黄佳宁 | A kind of soft start permanent magnetic coupling |
| CN208074033U (en) * | 2018-02-08 | 2018-11-09 | 江苏磁谷科技股份有限公司 | A kind of permanent magnet coupling bumper guard |
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