CN208754168U - A kind of distance-limiting type permanent magnet clutch - Google Patents
A kind of distance-limiting type permanent magnet clutch Download PDFInfo
- Publication number
- CN208754168U CN208754168U CN201820052463.6U CN201820052463U CN208754168U CN 208754168 U CN208754168 U CN 208754168U CN 201820052463 U CN201820052463 U CN 201820052463U CN 208754168 U CN208754168 U CN 208754168U
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- rotary table
- rotor
- inner rotary
- permanent magnet
- conductor
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- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
A kind of distance-limiting type permanent magnet clutch, is made of the first rotor and the second rotor, and the first rotor is connected with first axle, and the second rotor is connected with the second axis；The first rotor being connected with first axle is cage rotor, and be made of four turntables: outside is made of outer steel disk 1 and outer steel disk 2, and there are conductor steel disk 1 and conductor steel disk 2 in inside；Conductor disc is respectively provided on conductor steel disk 1 and conductor steel disk 2；Conductor steel disk 1 is connected together by least two pin shafts with outer steel disk 1；Conductor steel disk 2 is connected together by least two pin shafts with outer steel disk 2；Outer steel disk 1 and outer steel disk 2 are connected together by air gap plate；Equipped with the second rotor with the second axis connection between two conductor discs；Torque limiting device is housed between conductor steel disk 1 and outer steel disk 1, torque limiting device is housed between conductor steel disk 2 and outer steel disk 2.Second rotor is p-m rotor, and p-m rotor is by permanent magnetic rotation disc and set of permanent magnets at permanent magnetic rotation disc is made of nonferromugnetic material, installs permanent magnet thereon, and permanent magnet magnetic extreme direction is parallel with permanent magnetic rotation disc axis, the heteropolar installation of permanent magnet adjacent pole.First axle and the second axis can input shaft or output shafts each other.
Description
Technical field
The utility model relates to a kind of distance-limiting type permanent magnet clutch, belong to field of energy-saving technology.
Background technique
In existing machine driven system, the connecting mode between motor and load equipment is divided into rigid and soft substantially
Property west kind.The characteristics of rigid attachment is that input and output revolving speed is fully synchronized, and torque transmission efficiency is high, and installation requires the heart high, peace
It is big to fill difficulty, and will lead to the vibration between input and output device and transmit mutually, amplifies the influence of vibration, equipment is made to be easy to send out
Raw failure, non-maintaining runing time is short, when stall failure occurs for load equipment, will lead to motor, load and connecting device
When damaging, and being abnormal vibration, it is not easy to find vibration source, and be unfavorable for solving.Connection flexible can permit biggish
Alignment deviation reduces vibration transmitting to a certain extent, has certain flexible startup function, but torque transmission efficiency is lower, works as hair
When raw stall failure, generally motor and load can only be protected with the destruction of itself, and replace bothersome laborious, influence system
Normal operation.
Utility model patent: 200910250142.2 provide a kind of permanent magnet torque-limiting shaft coupling, are made of four turntables,
Two, outside outer rotary table, uses pin shaft joint；The inner rotary table of inside two, can slide on pin shaft；Between two inner rotary tables equipped with
The connected permanent magnetic rotation disc of second axis；Torque limiting device is housed on two outer rotary tables.It is all installed because of four turntables of the first rotor
On the same pin shaft, and pin shaft band step, so, the pin shaft hole requirement on machining accuracy on each turntable is high, installation and removal
It is inconvenient.
Utility model content
The purpose of the utility model is to provide a kind of distance-limiting type permanent magnet clutch, are made of four turntables, and outside has outer
There are inner rotary table one and inner rotary table two in turntable one and outer rotary table two, inside；Inner rotary table one is connected into one by pin shaft and outer rotary table one
Whole, pin shaft one end is fixed on inner rotary table one, and pin shaft can slide in the pin hole of outer rotary table one, and the pin shaft other end fixes one
Limited block；Inner rotary table two is connected into an entirety by pin shaft and outer rotary table two, and pin shaft one end is fixed on inner rotary table two, and pin shaft can
To slide in the pin hole of outer rotary table two, the pin shaft other end fixes a limited block；Outer rotary table one and outer rotary table two pass through air gap plate
Or pin shaft joint；Equipped with the permanent magnetic rotation disc being connected with the second axis between two inner rotary tables.Because inner rotary table one and outer rotary table are first is that whole
Body component, inner rotary table two and outer rotary table are coupled between two black boxes by air gap plate or other modes second is that black box,
So the pin shaft hole requirement on machining accuracy on each turntable is not high, installation and removal are convenient.
Utility model technical solution
The utility model distance-limiting type permanent magnet clutch, is made of the first rotor and the second rotor, the first rotor and first
Axis is connected, and the second rotor is connected with the second axis；The first rotor being connected with first axle is cage rotor, is made of four turntables:
Outside is made of outer rotary table one and outer rotary table two, and there are inner rotary table one and inner rotary table two in inside, and inner rotary table one and inner rotary table two are than outer
The outer diameter of turntable one and outer rotary table two is small；Conductor disc is respectively provided on inner rotary table one and inner rotary table two；Inner rotary table one passes through pin shaft
Couple with outer rotary table one integral, pin shaft one end is fixed on inner rotary table one, and pin shaft can be slided in the pin hole of outer rotary table one
Dynamic, the pin shaft other end fixes a limited block；Inner rotary table two is connected into an entirety by pin shaft and outer rotary table two, and pin shaft one end is fixed
On inner rotary table two, pin shaft can slide in the pin hole of outer rotary table two, and the pin shaft other end fixes a limited block；One He of outer rotary table
Outer rotary table two is connected together by air gap plate.
Equipped with the second rotor with the second axis connection between inner rotary table one and inner rotary table two, the second rotor is p-m rotor,
P-m rotor is by permanent magnetic rotation disc and set of permanent magnets at permanent magnetic rotation disc is made of nonferromugnetic material, installs permanent magnet, permanent magnetism thereon
Body pole orientation is parallel with permanent magnetic rotation disc axis, the heteropolar installation of permanent magnet adjacent pole.
Torque limiting device is housed, equipped with limit square dress between inner rotary table two and outer rotary table two between inner rotary table one and outer rotary table one
It sets.
First axle and the first rotor, coupling using expansion sleeve or key connecting between the second axis and the second rotor.
The beneficial effects of the utility model are:
Magnet on permanent magnetic rotation disc divides the pole N, S arranged adjacent, and the magnetic line of force passes through two conductor discs, when conductor disc and permanent magnetism
Between relative motion when, conductor disc cutting magnetic line generates eddy current in conductor turntable, eddy current and then generates dislike magnetic
, relative motion between the two is prevented, to realize torque transmitting between the two, the magnetic field strength passed through between the two is got over
Greatly, the torque of transmitting is bigger；Relative motion is faster, and the torque of transmitting is bigger.When normal operation, protected between conductor disc and permanent magnetic disk
Hold setting gap；When the load, switch block is thrown away by the centrifugal force that high speed rotation generates, two conductor discs act on lower edge in repulsion
Axial reverse movement, when be moved to design apart from when, realize overload protection.
The utility model realizes the non contact transmission of torque, and Jie Gou Jian Unit manufactures easy to process, light-weight, motor side
The weight of the second shaft end is dramatically reduced, makes second due to being provided only with a permanent magnetic rotation disc with the interchangeable installation of load-side
The stress condition of axis is improved, more steady during rotation, to reduce mechanical friction and abrasion, avoids vibration
Interference, reduce the loss of transmission parts, vibration be isolated and having also reduced noise, while installation and debugging are fairly simple, are not necessarily to
Precise centering allows certain axial float, and size of gaps control is more accurate.
Because of inner rotary table one and outer rotary table first is that black box, inner rotary table two and outer rotary table are second is that black box, two entirety
By air gap plate or pin shaft joint between component, so, the pin shaft hole requirement on machining accuracy on each turntable is not high, pacifies installation and dismantling
It unloads conveniently.
The distance-limiting type permanent magnet clutch is transmitted with efficient torque, flexibility starting, isolation vibration, and is had fully automated
Overload protection function.
Detailed description of the invention
Attached drawing 1 is a kind of schematic diagram of distance-limiting type permanent magnet clutch specific embodiment.
Attached drawing 2 is the schematic diagram of torque limiting device.
Specific embodiment
Further illustrate specific embodiment of the present utility model with reference to the accompanying drawing:
Attached drawing 1 is a kind of schematic diagram of the specific embodiment of distance-limiting type permanent magnet clutch of the utility model, the first rotor
For conductor rotor, be made of four turntables: outside is made of outer rotary table one (3) and outer rotary table two (11), and there is inner rotary table in inside
The material of one (5) and inner rotary table two (10), inner rotary table one (5) and inner rotary table two (10) is ferromagnetism, inner rotary table one (5) and interior turn
Disk two (10) is smaller than the outer diameter of outer rotary table one (3) and outer rotary table two (11)；It is filled respectively on inner rotary table one (5) and inner rotary table two (10)
There are conductor disc (7)；Inner rotary table one (5) is connected together with outer rotary table one (3) by three pin shafts (6), pin shaft (6) one end and interior turn
Disk one (5) is fixed together, and pin shaft (6) sliding, the other end of pin shaft (6) can fix one in the pin hole of outer rotary table one (3)
Limited block (4)；Inner rotary table two (10) is connected together with outer rotary table two (11) by three pin shafts (6), pin shaft (6) one end and interior turn
Disk two (10) is fixed together, and pin shaft (6) sliding, the other end of pin shaft (6) can be fixed in the pin hole of outer rotary table two (11)
One limited block (4)；Outer rotary table one (3) and outer rotary table two (11) are connected together by air gap plate (9).Because inner rotary table one (5),
Pin shaft (6) connects together with outer rotary table one (3), and inner rotary table two (10), pin shaft (6) connect together with outer rotary table two (11), so,
The first rotor, that is, conductor rotor is by the component of outer rotary table one (3) and inner rotary table one (5) and outer rotary table two (11) and inner rotary table two
(10) component and air gap plate (9) three parts composition, installation and removal is convenient.
Equipped with the second rotor with the second axis connection between inner rotary table one (5) and inner rotary table two (10).Second rotor is forever
Magnet rotor, p-m rotor are made of permanent magnetic rotation disc (18) and permanent magnet (19), and permanent magnetic rotation disc (18) is made of nonferromugnetic material,
Permanent magnet (19) are installed thereon, permanent magnet (19) pole orientation is parallel with permanent magnetic rotation disc (18) axis, the adjacent magnetic of permanent magnet (19)
Extremely heteropolar installation.There is air gap between inner rotary table one (5) and inner rotary table two (10) and two faces of permanent magnetic rotation disc (18).Limited block
(4) it can guarantee the minimum being kept fixed between inner rotary table one (5) and inner rotary table two (10) and two faces of permanent magnetic rotation disc (18)
Air gap.
Two conductor discs (7) are connected in by screw or other modes with inner rotary table one (5) and inner rotary table two (10) respectively
Together, it is connected as one with screw or other modes；Inner rotary table one (5) and inner rotary table two (10) material are ferromagnetism；Conductor disc
(7) material requirements has good electric conductivity and enough strength and stiffness.
Torque limiting device (14) are housed between inner rotary table one (5) and outer rotary table one (3), torque limiting device (14) can turn mounted in interior
It, can also be on outer rotary table one (3) on disk one (5)；Torque limiting device is housed between inner rotary table two (10) and outer rotary table two (11)
(14), torque limiting device (14) can be on inner rotary table two (10), can also be on outer rotary table two (11)；Torque limiting device (14)
Structure (attached drawing 2), be made of limit square seat (21), limit moment arm (22), pin shaft (24), nut (25) and torsional spring (23).
The first rotor is conductor rotor, and flange (17) is fixed on the first rotor by screw (13), and the first rotor passes through
Flange (17) is fastened on motor shaft by expansion sleeve (16)；Second rotor is p-m rotor, and flange (2) passes through screw (8)
It is fixed on the second rotor, the second rotor is mounted on bearing shaft by flange (2), is fastened by expansion sleeve (1)；It can also be with
One rotor is on bearing shaft, and the second rotor is on motor shaft.
In the electric motor starting stage, because it is big to output and input rotational speed difference, on two conductor discs (7) and permanent magnetic rotation disc (18)
Permanent magnet (19) can generate opposite repulsion, but because of the effect of torsional spring (23), limit square block arm (22) is kept upright, inner rotary table one
(5) and inner rotary table two (10) can only make small shifting to outer rotary table one (3) and outer rotary table two (11) direction along the axis of pin shaft (6)
It is dynamic, the torque of transmitting is reduced, plays the role of buffer starting, is stepped up then as revolving speed, finally reach fixed slippage,
Two faces of two conductor discs (7) and permanent magnetic rotation disc (18) are in the smallest air gap (due to the effect of limited block), due to centrifugal force
Effect, limit moment arm (22) with the axis of turntable at vertical；When stall, outputs and inputs rotational speed difference and reach maximum, two are led
The opposite repulsion that permanent magnet (19) on body disc (7) and permanent magnetic rotation disc (18) can generate is greater than the torsion of torsional spring (23), inner rotary table
One (5) and inner rotary table two (10) will limit moment arm (22) and overwhelm, and inner rotary table one (5) and inner rotary table two (10) reach at maximum air gap,
Play the role of overload protection.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on are all contained in the utility model
Within protection scope.
Claims (4)
1. a kind of distance-limiting type permanent magnet clutch, it is characterized in that:
It is made of the first rotor and the second rotor；
The first rotor is connected with first axle, and the second rotor is connected with the second axis；
The first rotor being connected with first axle is conductor rotor, and be made of four turntables: outside is by outer rotary table one and outer rotary table two
There are inner rotary table one and inner rotary table two in composition, inside, and inner rotary table one and inner rotary table two are smaller than the outer diameter of outer rotary table one and outer rotary table two；
Conductor disc is respectively provided on inner rotary table one and inner rotary table two；Inner rotary table one is linked to be by least two pin shafts with outer rotary table one whole
Body；Pin shaft one end is fixed on inner rotary table one, and pin shaft can slide in the pin hole of outer rotary table one, and the pin shaft other end fixes a limit
Position block；Inner rotary table two is linked to be entirety by least two pin shafts and outer rotary table two, and pin shaft one end is fixed on inner rotary table two, pin shaft
It can be slided in the pin hole of outer rotary table two, the pin shaft other end fixes a limited block；Outer rotary table one and outer rotary table two pass through air gap
Plate connects together；
Equipped with the second rotor with the second axis connection between inner rotary table one and inner rotary table two, the second rotor is p-m rotor, permanent magnetism
Rotor by permanent magnetic rotation disc and set of permanent magnets at；
By air gap at coupled relation between inner rotary table one and two end faces of inner rotary table two and permanent magnetic rotation disc, limited block can be limited
Determine the smallest air gap fixed between inner rotary table one and inner rotary table two and two end faces of permanent magnetic rotation disc.
2. distance-limiting type permanent magnet clutch according to claim 1, it is characterised in that: permanent magnetic rotation disc is by nonferromugnetic material structure
At installing permanent magnet thereon, permanent magnet magnetic extreme direction is parallel with permanent magnetic rotation disc axis, the heteropolar installation of permanent magnet adjacent pole.
3. distance-limiting type permanent magnet clutch according to claim 1, it is characterised in that: inner rotary table one and conductor disc combination are one
Rise, inner rotary table two and conductor disc are combined, and are connected as one with screw, inner rotary table one and two material of inner rotary table are ferromagnetic
Property, conductor disc material requirements has good electric conductivity and enough strength and stiffness.
4. distance-limiting type permanent magnet clutch according to claim 1, it is characterised in that: set between inner rotary table one and outer rotary table one
Torque limiting device is set, torque limiting device is set between inner rotary table two and outer rotary table two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052463.6U CN208754168U (en) | 2018-01-12 | 2018-01-12 | A kind of distance-limiting type permanent magnet clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052463.6U CN208754168U (en) | 2018-01-12 | 2018-01-12 | A kind of distance-limiting type permanent magnet clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208754168U true CN208754168U (en) | 2019-04-16 |
Family
ID=66050478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820052463.6U Expired - Fee Related CN208754168U (en) | 2018-01-12 | 2018-01-12 | A kind of distance-limiting type permanent magnet clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208754168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111969832A (en) * | 2020-09-07 | 2020-11-20 | 芜湖锦程永磁技术有限公司 | Torque-limiting permanent magnet coupling with adjustable start delay |
-
2018
- 2018-01-12 CN CN201820052463.6U patent/CN208754168U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111969832A (en) * | 2020-09-07 | 2020-11-20 | 芜湖锦程永磁技术有限公司 | Torque-limiting permanent magnet coupling with adjustable start delay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190416 Termination date: 20210112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |