CN205610460U - Permanent magnet coupling - Google Patents
Permanent magnet coupling Download PDFInfo
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- CN205610460U CN205610460U CN201620362074.4U CN201620362074U CN205610460U CN 205610460 U CN205610460 U CN 205610460U CN 201620362074 U CN201620362074 U CN 201620362074U CN 205610460 U CN205610460 U CN 205610460U
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- rotor
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- permanent magnet
- steel disk
- early warning
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
The utility model provides a permanent magnet coupling, belong to electrical machinery & towage technical field, be applied to the motor drag water pump, the fan, the soft start hookup of equipment such as mine transportation machine, solved because of permanent magnet rotor and the inboard copper dish emergence friction of squirrel cage type rotor, it produces the problem that the spark burns out permanent magnet coupling to lead to the steel disk to heat up in the twinkling of an eye, the leading features is that the major -minor steel disk outside that constitutes squirrel cage type rotor is equipped with multichannel ring channel and multichannel annular arris, the ring channel constitutes the heat dissipation bars with annular arris, it has nonmetal early warning round pin to inlay between the permanent magnetism block on the permanent magnet rotor that the major -minor magnetic disc constitutes, two ends of early warning round pin are slightly outstanding permanent magnet rotor surface and keep having quantitative clearance with the copper dish of squirrel cage type rotor respectively, when squirrel cage type rotor or permanent magnet rotor off tracking, the sparkless friction takes place with the copper dish of squirrel cage type rotor for early warning round pin head, the temperature sensor who makes the steel disk outside transferes controller implementation power -off protection with the limiting temperauture, effectively protect permanent magnet coupling's operation safety, positive effect of security has.
Description
Technical field
This utility model belongs to Electrical Machinery & Towage technical field, particularly relates to for motor (following
It is called for short motor) a kind of permanent magnet clutch of coupling with load end.
Background technology
Existing permanent magnet clutch, is widely used in motor drag water pump, blower fan, mine belt conveyer
Deng equipment, such as mine belt conveyer is through permanent magnet clutch and motor couples with decelerator dragging fortune
Row.
At present it is known that permanent magnet clutch according to manufacture structure be generally divided into distance-limiting type, cartridge type, standard type,
The wherein basic structure of standard type permanent magnet clutch, mainly includes the main steel disk with eddy current copper dish, secondary steel
Dish, rigid magnetic disks with permanent magnet, disk arranges polylith permanent magnet.During assembling, secondary steel disk with
Being through on reducer shaft facing to motor side set of eddy current copper dish, with the rigid magnetic disks of permanent magnet as forever
Magnet rotor is arranged on the reducer shaft of load-side, main steel disk pacifying facing to load-side with eddy current copper dish
Being contained on motor shaft, the secondary steel disk that set is through on load-side reducer shaft passes through screw element form and is arranged on
Main steel disk on motor shaft is combined into cage rotor, and adjusting sleeve is contained in the p-m rotor in cage rotor
Complete to assemble with the air gap of eddy current copper dish on steel disk.
When motor runs, the cage rotor operating on motor shaft, p-m rotor on cutting reducer axle
The magnetic line of force, it is achieved the transmission of torque, drag load operation.
This existing permanent magnet clutch, in actual moving process, can make the mouse cage that major-minor steel disk is constituted
Type rotor produces and heats up, and during the transporter oepration at full load of the most high-power dragging, can produce Celsius
60-90 degree and above temperature, long hot operation influences whether to be arranged on disk by neodymium iron boron system
The magnetic of the permanent magnet made weakens, and causes magnetic field intensity to decline, until demagnetizing completely.
Existing permanent magnet clutch is in actual moving process, due to long-play with by environmental geology etc.
Factor affects, it is possible to causing motor or decelerator trickle offset deviation occur, this slight change can be led
Cause the air gap that p-m rotor and cage rotor constitute occur trickle skew, this trickle skew need and
Shi Faxian is also corrected.Failing to find air gap skew in time, once cause p-m rotor and mouse cage
In type rotor, the raw friction of side copper hair updo, will produce spark and burns the thing of permanent magnet clutch moment
Therefore, having in gas or explosive dust atmosphere if be arranged on, accident potential is more serious.
Summary of the invention
The purpose of this utility model, it is simply that in order to solve because the p-m rotor of permanent magnet clutch turns with mouse-cage type
The raw friction of copper hair updo inside son, causes steel disk moment to be heated up or produces spark, burning permanent magnetism shaft coupling
The problem of device accident, devises a kind of permanent magnet clutch, it is ensured that heavy-duty motor and trailing transporter
Safe operation at full capacity.
This utility model is achieved through the following technical solutions: a kind of permanent magnet clutch, including equipped with many
The disk of individual Nd-Fe-B permanent magnetic block, equipped with the steel disk of vortex ring copper dish, wherein master disk is provided with and slows down
The flange that device axle couples, the axis hole of secondary disk is more than the decelerator diameter of axle, and Nd-Fe-B permanent magnetic block is embedded in main magnetic
In the groove matched with it on dish, secondary disk covers permanent magnets accordingly and is buckled on master disk by screw element shape
Formula is fastened as a whole composition p-m rotor, and eddy current copper dish is combined into one by screw element form with steel disk,
Main steel disk is provided with and coordinates the flange coupled with motor shaft, secondary steel disk axis hole more than master disk flange external diameter and
Leaving gap, between main steel disk and secondary steel disk, set is loaded onto p-m rotor and is bolted composition cage rotor,
Air gap it is provided with, it is characterised in that constitute the main steel disk of cage rotor between p-m rotor and cage rotor
Secondary steel disk lateral surface is provided with multiple tracks cannelure and multiple tracks annular rib, multiple tracks cannelure and multiple tracks annular rib
Constituting the heat radiation grid of cage rotor, what the p-m rotor being made up of master disk, secondary disk was installed is multiple
It is provided with nonmetal early warning pin-and-hole between permanent magnets, in hole, is inlaid with nonmetal early warning pin, nonmetal early warning
Two terminations of pin the most slightly highlight p-m rotor surface and the copper card with cage rotor maintains quantitatively
Gap, for protecting p-m rotor to damage because of the tribological failure caused by sideslip with cage rotor.Permanent magnetism
The geometry of the multiple permanent magnets arranged in rotor is trapezoidal.The two ends diameter of nonmetal early warning pin is little
In early warning pin mid diameter, it is simple to it is stable that nonmetal early warning pin is embedded on major-minor disk holding.
Permanent magnet clutch of the present utility model, uses and goes out many by lathe car outside cage rotor steel disk
The cannelure that road is concentric, concentric cannelure and concentric annular rib constitute heat radiation grid.Work as permanent magnet clutch
During operating, dispel the heat grid self-assembling formation convection effect, can improve radiating efficiency and reduce running temperature.Special
It not the belt conveyer that heavy-duty motor is dragged, can effectively reduce eddy current copper dish eddy current and be produced
Temperature, there is using effect energetically.
The nonmetal early warning pin two arranged in early warning pin-and-hole on p-m rotor slightly highlights p-m rotor surface,
Maintain quantitative gap with the copper dish of cage rotor, can when cage rotor or p-m rotor sideslip,
First by the raw friction with the copper hair updo of cage rotor of nonmetal early warning plunger, this friction will not produce spark,
And moment makes the steel disk temperature of cage rotor raise, it is arranged on the temperature outside cage rotor steel disk and passes
Default limiting temperature is passed to controller and is implemented power-off protection by sensor, can effectively protect permanent magnet clutch
Operation safety, there is positive safe effect.Permanent magnets is arranged to trapezoidal, can effectively utilize disk
Space, arranges the volume of permanent magnets to greatest extent, completes the purpose of this utility model.
Accompanying drawing explanation
Fig. 1 is master map, is the assembling structural representation of permanent magnet clutch of the present utility model；
Fig. 2 be permanent magnet clutch pair steel disk face structural representation；
Fig. 3 is the side-looking structural representation of Fig. 2；
Fig. 4 is that main steel disk faces structural representation；
Fig. 5 is the side-looking structural representation of Fig. 4；
Fig. 6 be master disk face structural representation；
Fig. 7 is the side-looking structural representation of Fig. 6；
Fig. 8 be secondary disk face structural representation；
Fig. 9 is the side-looking structural representation of Fig. 8；
Figure 10 is the geometry schematic diagram of permanent magnets；
Figure 11 is the structural representation of nonmetal early warning pin；
Figure 12 is the axle side assembling structural representation of permanent magnet clutch；
Wherein: the main steel disk of 1--, 2--pair steel disk, 3--cannelure, 4--annular rib, 5--permanent magnets, 6--sells
Hole, 7--early warning pin, 8--stud, 9-loss of weight elongated slot, 10--copper dish, 11--master disk, 12--pair magnetic
Dish, 13--main steel disk flange, 14--pair steel disk axis hole, 15--master disk flange, 16--pair disk axis hole,
17--dormant bolt, 18--dovetail groove, 19--screw, 20--stud hole, 21--fillister head screw.
Detailed description of the invention
Comparison accompanying drawing explanation, Fig. 1 is master map (being appointed as specification digest accompanying drawing), and the left side of Fig. 1 is negative
Carrying end, couple with decelerator, right side is to couple motor side.Multiple Nd-Fe-B permanent magnetic blocks 5 of permanent magnet clutch
Being fabricated to trapezoidal, in the dovetail groove 18 being embedded on disk, trapezoidal permanent magnets 5 is designed to square with existing
The permanent magnets of shape is compared, and can make full use of disk area, improves the utilization rate of disk effective area,
Have and significantly increase permanent magnets area and increase the effect of magnetic flux.
Master disk 11 fastens with secondary disk 12 and assembles, and is fastened as a whole composition by fillister head screw 21
P-m rotor；Master disk 11 is provided with the master disk flange 15 coupled with bearing axle, the axis hole of secondary disk 12
16 are more than the motor diameter of axle, and during assembling, 1/2nd thickness of permanent magnets 5 are embedded on master disk 1 and it
In the dovetail groove 18 matched, the dovetail groove 18 on secondary disk 2 is directed at corresponding permanent magnets and clasps, and makes
Another 1/2nd thickness of permanent magnets 5 are embedded in the dovetail groove 18 that secondary disk is matched, buckle master
Secondary disk alignment screw 19 fillister head screw 21 is tightened.For alleviating the weight of p-m rotor, at major-minor
Loss of weight elongated slot 9 is had on disk.
Steel disk equipped with annular copper dish 10 is divided into main steel disk 1, secondary steel disk 2, and stud 8 is through main steel
Dish 1 and the upper stud hole 20 arranged of circle, secondary steel disk 2 outer are connected into cage rotor, main steel disk 1
It is provided with the main steel disk flange 13 coupled with motor shaft, main steel disk 1 and secondary steel disk 2 bolt 8 and couples composition
Cage rotor；The multiple tracks cannelure 3 arranged on the main steel disk 1 of cage rotor and secondary steel disk 2 lateral surface
Heat radiation grid with multiple tracks annular rib 4 constitutes cage rotor, are respectively mounted with on major-minor steel disk lateral surface
The heat radiation grid molecular heat radiation grid of multiple splits are compared, it is clear that constitute on steel disk body is embedded scattered
The radiating effect of hot grid is obvious, has that environmental noise is relatively small and the simple feature of manufacturing process.
The nonmetal early warning pin 7 arranged between multiple permanent magnets on p-m rotor, its material can be brake stone
Cotton liner makes, and two terminations of early warning pin 7 the most slightly highlight magnetic disk surface 1--1.5 millimeter, with mouse cage
The copper dish 10 of type rotor maintains quantitative gap, can be effectively protected p-m rotor or cage rotor because of
Sideslip causes disk to produce spark with the friction of copper dish；When motor or decelerator are because there is trickle operation displacement
During deviation, it is easy to cause the air gap between the cage rotor of permanent magnet clutch and p-m rotor to become
Change, once change, the termination that slightly highlights of nonmetal early warning pin 7 that p-m rotor is arranged first with
The raw friction of copper hair updo inside cage rotor, nonmetal early warning plunger rubs will not damage with the moment of copper dish
Bad copper panel surface, moment friction between the two can make to be quickly risen to set by friction side steel disk temperature
Early warning temperature, early warning temperature can by steel disk temperature outside sensor alarm and by control switch shutdown,
There is the good effect of protection permanent magnet clutch, reached purpose of design.
Nonmetal early warning plunger will not produce spark with the moment friction of copper dish, can have fiery gas
The occasion of body or dust uses, and has using effect widely.
Claims (3)
1. a permanent magnet clutch, including the disk equipped with multiple Nd-Fe-B permanent magnetic blocks, equipped with vortex ring
The steel disk of copper dish, wherein master disk is provided with the flange coupled with reducer shaft, and the axis hole of secondary disk is more than subtracting
The speed device diameter of axle, Nd-Fe-B permanent magnetic block is embedded in the groove matched with it on master disk, and secondary disk covers accordingly
Live permanent magnets to be buckled on master disk and be fastened as a whole composition p-m rotor by screw element form, eddy current copper dish
Being combined into one by screw element form with steel disk, main steel disk is provided with and coordinates the flange coupled with motor shaft,
Secondary steel disk axis hole is more than the external diameter of master disk flange and leaves gap, overlaps and load onto between main steel disk and secondary steel disk
P-m rotor is bolted composition cage rotor, is provided with air gap between p-m rotor and cage rotor,
It is characterized in that constituting the main steel disk (1) of cage rotor and secondary steel disk (2) lateral surface is provided with multiple tracks
Cannelure (3) and multiple tracks annular rib (4), multiple tracks cannelure (3) constitutes Mus with multiple tracks annular rib (4)
The heat radiation grid of cage-type rotor, the p-m rotor being made up of the secondary disk (12) of master disk (11) is installed
It is provided with nonmetal early warning pin-and-hole (6) between multiple permanent magnets (5), is inlaid with nonmetal in hole (6)
Early warning pin (7), two terminations of nonmetal early warning pin (7) the most slightly highlight p-m rotor surface and Mus
The copper card of cage-type rotor maintains quantitative gap.
2. according to the permanent magnet clutch described in claim 1, it is characterised in that arrange many in p-m rotor
The geometry of individual permanent magnets is trapezoidal.
3. according to the permanent magnet clutch described in claim 1, it is characterised in that the two ends of nonmetal early warning pin
Head diameter is less than early warning pin mid diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620362074.4U CN205610460U (en) | 2016-04-26 | 2016-04-26 | Permanent magnet coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620362074.4U CN205610460U (en) | 2016-04-26 | 2016-04-26 | Permanent magnet coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205610460U true CN205610460U (en) | 2016-09-28 |
Family
ID=56970393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620362074.4U Active CN205610460U (en) | 2016-04-26 | 2016-04-26 | Permanent magnet coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205610460U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720789A (en) * | 2016-04-26 | 2016-06-29 | 贾建伟 | Permanent magnet coupling |
| CN107070174A (en) * | 2015-11-13 | 2017-08-18 | 麦格纳驱动公司 | Magnet is to magnet type shaft coupling and driver |
| CN107947524A (en) * | 2017-12-28 | 2018-04-20 | 南京工程学院 | Axial flux permanent magnet eddy-current coupling with slit flume structure |
-
2016
- 2016-04-26 CN CN201620362074.4U patent/CN205610460U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070174A (en) * | 2015-11-13 | 2017-08-18 | 麦格纳驱动公司 | Magnet is to magnet type shaft coupling and driver |
| CN105720789A (en) * | 2016-04-26 | 2016-06-29 | 贾建伟 | Permanent magnet coupling |
| CN107947524A (en) * | 2017-12-28 | 2018-04-20 | 南京工程学院 | Axial flux permanent magnet eddy-current coupling with slit flume structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190419 Address after: 045200 Economic and Technological Development Zone of Yangquan City, Shanxi Province Patentee after: Shanxi Zhongke Intelligent Equipment Technology Co., Ltd. Address before: 045008 Jinyuan 5-19, Yangquan Mining Area, Shanxi Province Patentee before: Jia Jianwei |
|
| TR01 | Transfer of patent right |