CN203504388U - Inner radiation ring and intelligent protection type permanent magnetic coupling - Google Patents

Abstract

An inner radiation ring and intelligent protection type permanent magnetic coupling comprises a conductor external rotor, a permanent magnetic internal rotor and an intelligent protection system. An external single circular ring type induction apparatus with a fixed air gap, a radiation oriented ring type inner integral magnet ring structure and a high-efficient heat radiation optimization system are employed, combined with the intelligent protection system. A motor shaft expansion sleeve and a motor shaft connection sleeve are connected with a motor shaft, a motor shaft spline introduces motor power, a load shaft expansion sleeve and a load shaft connection sleeve are connected with a load shaft, a load shaft spline outputs torque, a number plate is arranged on the signal detection shaft at the load side to detect the rotating speed change of the load in real time. The permanent magnetic coupling is characterized in that the conductor external rotor rotates in high speed, the outer copper ring of a single circular ring inductor cuts magnetic lines of the inner radial type integral magnet ring in the permanent magnetic internal rotor through a radial fixed air gap to generate an eddy current on the outer copper ring, and simultaneously, the eddy current generates an induced magnetic field interacting with the permanent magnetic field to achieve connectionless power transmission. The high-efficient heat radiation apparatus is employed, the temperature of the copper ring and the radial type integral magnet ring is reduced, and the magnetic force of the system is guaranteed to be stable.

Description

Interior radiation ring type Intelligent protection permanent magnet clutch

Technical field

The utility model relates to a kind of device of motor coupler, be particularly useful for frequent motor starting and load variable load frequent, transship the connecting of motor and load under severe operating mode.

Background technology

Shaft coupling is the parts that often use in mechanical system power transmission process, is widely used in the industries such as petrochemical industry, power industry, mining and boats and ships, Aero-Space, steel and iron industry, papermaking.Along with scientific and technical development, shaft coupling application constantly expands, and technology is also at development, and New Products & New Technology emerges in an endless stream.

The type of shaft coupling is more, conventionally, according to the ability that has uncompensated relative displacement, is divided into positive coupling and flexible coupling.

That positive coupling has advantages of is simple in structure, transmission efficiency is high.But also having can not overload protection, can not bumper and absorbing shock, cannot compensate diaxon relative displacement and the shortcoming of soft start function is provided.

Flexible coupling comprises the flexible coupling of inelastic component and the flexible coupling having elastic component, the former bumper and absorbing shock ability, and the latter's transmission efficiency is lower.Flexible coupling belongs to contact shaft coupling, and the little and very difficult assurance of centering alignment error often causes vibrating and shortening life-span of seal and bearing due to centering installation question, makes that device temperature raises, transmission efficiency reduces.Although part flexible coupling allows to move under larger error of centralization condition, can on motor and bearing axle, produce periodically additional load, do not tackle the problem at its root.Heavy loading machinery equipment must have the ability to work of " soft start and overload protection " in addition, to avoid that equipment is caused to very large infringement and easily generation personal injury, reduces the impact to electrical network simultaneously.Most of flexible coupling is without soft start and overload protection function.Although indivedual flexible couplings can provide soft start and overload protection function but require centering alignment error little, otherwise even there is production accident in the effect that directly affects transmission of power.When existing flexible coupling is all different, possess: centering alignment error is large, soft start and three functions of overload protection.

In practice, running situation is complicated and changeable, the centering of strict guarantee diaxon in any case, and equipment all can produce vibration after operation a period of time, thereby accelerated wear test, shortens equipment life.So in order to improve the reliability of slewing, eliminate the rigid attachment of shaft coupling between motor shaft and bearing axle, make vibration isolation between motor and load, be independent of each other; Allow the larger error of centralization, when equipment is subject to large impact, overload, protect equipment; And can provide soft start function.It is the inexorable trend of following shaft coupling development.

Summary of the invention

Can not overload protection in order to solve positive coupling, can not bumper and absorbing shock, cannot compensate diaxon relative displacement and the shortcoming of soft start function is provided.When all different with existing flexible coupling, possess: centering alignment error is large, the deficiency of soft start and three functions of overload protection; the utility model provides a kind of interior radiation ring type Intelligent protection permanent magnet clutch, realizes that centering alignment error is large, soft start and three functions of overload protection simultaneously.Can by power non contact transmission to load and have protection motor, load equipment and interior radiation ring type Intelligent protection permanent magnet clutch effect.This interior radiation ring type Intelligent protection permanent magnet clutch has had the advantage of positive coupling and flexible coupling concurrently, is the soft start equipment that a machinery-free connects.Owing to being by magnetic field transmitting torque, with air gap, replacing motor and be connected with the entity between load.Thereby diaxon is separated completely, allow the larger error of centralization, realized soft starter for motor, eliminated nuisance vibration, wearing and tearing and fracture, transmission efficiency is high, the harm that has extended electrical machinery life and avoided overload to cause.

The utility model solves the technical scheme that its technical problem adopts:

Interior radiation ring type Intelligent protection permanent magnet clutch, it is characterized in that having the conductor external rotor (I) being connected on motor shaft (17) and the permanent magnetism internal rotor (II) that is connected bearing axle (19), and between conductor external rotor (I) and permanent magnetism internal rotor (II), radially have fixing air gap and realize contactless moment of torsion transmission between motor shaft (17) and bearing axle (19) by magnetic couple effect; In bearing axle (19) one sides, intelligent protection system (III) is housed; and described intelligent protection system (III) is comprised of the input axle (13), signal code-disc (14), speed probe (15) and the signal processor (16) that are arranged on load-side, employing power line connects speed probe (15) and signal processor (16) is connected as a single entity and to one of motor power, export control signal by signal processor (16).

Described conductor external rotor (I) is to consist of the outward turning change (3) and the conductor loops (4) that are connected on motor shaft (17), and conductor loops (4) is fixed on outward turning change (3) inner side.

Rotating ring (3) outside is fixed with outer shroud fin (10) outside, and rotating ring (3) side is fixed with side fin (9) outside.

Outward turning change (3) is connected on motor shaft (21) by motor shaft adapter sleeve (2), motor shaft adapter sleeve (2) is outer is simultaneously equipped with motor shaft expansion set (1), and motor shaft expansion set (1) is connected motor shaft (21), motor axle key bar (22) as motor power output mechanism with motor shaft adapter sleeve (2).

Described permanent magnetism internal rotor (II) is comprised of the interior rotating disk (8) and the whole magnet ring of radiant type (5) that are connected on bearing axle (19), and the whole magnet ring of radiant type (5) is fixed on interior rotating disk (8) outer shroud.

By bearing axle adapter sleeve (7), interior rotating disk (8) and bearing axle (23) are connected as a single entity; And with bearing axle expansion set (6), bearing axle adapter sleeve (7) and bearing axle (23), load axle key bar (16) are connected as a single entity and are inputted as load power.

Adopt whole magnet ring effective dimensions in the single circular ring type induction installation in the fixed-size outside of radial air gap and radially oriented ring type to optimize structure.By magnetic couple effect, realize contactless moment of torsion between motor and load and transmit, by intelligent protection system, when load is transshipped, realize the automatic protection to the overload moment of torsion of motor, load equipment and interior radiation ring type Intelligent protection permanent magnet clutch.

This device is a kind of innovative energy-saving product that utilizes the research and development of permanent-magnet eddy current Driving technique, adopt the whole internal magnetic ring effective dimensions of radial air gap fixed-size cylindrical ring type induction installation and radially oriented ring type to optimize structure, utilize outer induction copper ring and the whole magnet ring of interior radiant type to relatively rotate magnetic conductor with the fixing magnetic line of force generation magnetic induction force of air gap cutting permanent-magnetic clamp radially, realize contactless moment of torsion transmission between motor and load.When load is transshipped, by intelligent protection system, cut off motor power, while preventing interior radiation ring type Intelligent protection permanent magnet clutch high speed slippage, bulk temperature raises, and even melts copper ring, motor damage.Realize the automatic protection of overload moment of torsion.

The beneficial effects of the utility model are, interior radiation ring type Intelligent protection permanent magnet clutch is non-contact type coupling, vibration isolation, allow the larger error of centralization, install simple; can realize soft start and overload protection, long service life, reliable; non-maintaining, transmission efficiency is high, and energy-conservation 10～30%.Greatly reduce systematic running cost and extended useful life of equipment.Use it also can dwindle capacity motor, eliminate " low load with strong power " phenomenon and meet national " energy-saving and emission-reduction " policy.

Accompanying drawing explanation

1. Fig. 1 is the utility model principle schematic.

Conductor external rotor I: by motor shaft band moving-conductor external rotor I High Rotation Speed, copper ring is with the fixing magnetic line of force of the whole magnet ring of air gap cutting radiant type and respond to outside on copper ring and produce eddy current radially, and eddy current produces induced field simultaneously.Utilize efficient radiating apparatus, reduce system temperature, guarantee that magnetic working is stable.

Permanent magnetism internal rotor II: the permanent magnetic field of the whole magnet ring of radiant type in permanent magnetism internal rotor II is subject to the interaction that conductor external rotor I responds to the outer induced field in copper ring outward and makes interior rotating ring rotation.And by bearing axle, the output torque of motor is inputed to load.

Intelligent protection system III: cut off motor power when load overload (load stall), make motor stalling.The full-automatic protection of realization to motor, load equipment and interior radiation ring type Intelligent protection permanent magnet clutch.

2. Fig. 2 is the utility model structural representation.

Motor shaft expansion set (1), motor shaft adapter sleeve (2), outward turning change (3), steel loop (4), the whole magnet ring (5) of radiant type, bearing axle expansion set (6), bearing axle adapter sleeve (7), interior rotating ring (8), side fin (9), outer shroud fin (10), rivet (11), viscose glue (12), input axle (13), signal code-disc (14), speed probe (15) and signal processor (16).

3. Fig. 3 is interior radiation ring type Intelligent protection permanent magnet clutch conductor external rotor (magnetic conductor) structure chart: be connected as motor power output precision with motor shaft, and be system radiating simultaneously.For active rotation body.

4. Fig. 4 is interior radiation ring type Intelligent protection permanent magnet clutch permanent magnetism internal rotor (permanent magnet) structure chart: being connected with bearing axle as load torque input module, is passive rotary body.

5. Fig. 5 is interior radiation ring type Intelligent protection permanent magnet clutch intelligent protection system figure: whole system is load overload protecting mechanism.Wherein being arranged on the input axle of load-side and signal code-disc connects as one and is all system with speed probe one load speed variable signal is provided.

6. Fig. 6 is interior radiation ring type Intelligent protection permanent magnet clutch conductor external rotor inductor component drawings.Make system produce the device of induced field.

7. Fig. 7 is interior radiation ring type Intelligent protection permanent magnet clutch permanent magnet assembly figure: for system provides the device of permanent magnetic field.

8. Fig. 8 is interior radiation ring type Intelligent protection permanent magnet clutch assembly drawing:

Reference numeral:

I---conductor external rotor II---permanent magnetism internal rotor III---intelligent protection system;

(1)---motor shaft expansion set (2)---motor shaft adapter sleeve (3)---outward turning change,

(4)---copper ring (5)---the whole magnet ring (6) of radiant type---bearing axle expansion set

(7)---bearing axle adapter sleeve (8)---interior rotating ring (9)---side fin

(10)--outer shroud fin (11)--rivet (12)--viscose glue

(13)--input axle (14)--signal code-disc (15)--speed probe

(16)--signal processor (17)--motor shaft (18)--motor axle key bar

(19)--bearing axle (20)--load axle key bar

Embodiment

As shown in Fig. 1-8, in this, radiation ring type Intelligent protection permanent magnet clutch concrete structure is as follows:

(1) conductor external rotor I: by motor shaft expansion set (1), motor shaft adapter sleeve (2), outward turning change (3), copper ring (4), side fin (9), outer shroud fin (10) and rivet (11), the single cylindrical shape being connected by screw is whole, and wherein copper ring (4) and outward turning change (3) are connected with rivet (12) and limit copper ring (4) and outward turning change (3) axially relatively moves for machinery cooperation.Copper ring (4) and outward turning change (3) form outer inductor.By motor shaft expansion set (1), motor shaft (17), motor axle key bar (18) are connected with motor shaft adapter sleeve (2) as motor power output and are used.During work by motor shaft (17) band moving-conductor external rotor I High Rotation Speed copper ring (4) with the fixing magnetic line of force of the air gap cutting whole magnet ring of radiant type (5) at the upper eddy current that produces of copper ring (4) radially, simultaneously eddy current produce induced field and permanent magnetic field interact drive in rotating disk (8) rotate.Pass to load by Motor torque is contactless.The induced field that eddy current produces is the basis that motor power transmits.Utilize efficient radiating apparatus simultaneously, reduce the temperature of the whole magnet ring of copper ring (4) and radiant type (5), guarantee that system magnetic working is stable.

Interior radiation ring type Intelligent protection permanent magnet clutch inductor adopts the single circular ring type in outside, different according to transmitted power, changes copper ring diameter and gauge.Design the interior radiation ring type Intelligent protection permanent magnet clutch of different size.

(2) permanent magnetism internal rotor II: be comprised of the whole magnet ring of bearing axle expansion set (6), bearing axle adapter sleeve (7), interior rotating ring (8) and radiant type (5), permanent magnetism internal rotor II adopts viscose glue (12) to be connected the whole magnet ring of radiant type (5) and interior rotating disk (8) are connected as a single entity.Adopting screw to connect is connected as a single entity bearing axle adapter sleeve (7) and interior rotating disk (8).Adopt bearing axle expansion set (6) to connect bearing axle adapter sleeve (7) and bearing axle (19), load axle key bar (20) are connected as a single entity, as load power, input is used.During work, the permanent magnetic field of the whole magnet ring of radiant type in permanent magnetism internal rotor II (5) is subject to conductor external rotor and responds to the interaction of the induced field in copper ring (4) outward and make interior rotating ring (8) rotation.And by bearing axle (19), the output torque of motor is inputed to load.By magnetic couple effect, realizing contactless moment of torsion between motor and load transmits.Permanent magnetic field is the basis of transmitting motor outputting power and inputing to load.

Interior radiation ring type Intelligent protection permanent magnet clutch permanent-magnetic clamp adopts the whole magnet ring structure of radially oriented ring type.Different according to transmitted power, change whole magnet ring (5) diameter of radiant type and gauge and the number of poles that magnetizes how many and design the interior radiation ring type Intelligent protection permanent magnet clutch of different size.Realize the moment of torsion transmission of the interior radiation ring type Intelligent protection permanent magnet clutch of different size.

(3) intelligent protection system III: be comprised of the input axle (13), signal code-disc (14), speed probe (15) and the signal processor (16) that are arranged on load-side, employing power line connects speed probe (15) and signal processor (16) is connected as a single entity and export control signal by signal processor (16) to one of motor power.According to different environments for use, adopt different signal generation apparatus.Its operation principle is to detect load speed, when load speed is reduced to 0-4r/min, by signal processor (16), gives control signal of motor power, cuts off immediately motor power, makes motor stalling.In stoping, radiation ring type Intelligent protection permanent magnet clutch is when high speed slippage, and system temperature raises, and even melts copper ring, motor damage.By intelligent protection system III, realize the full-automatic protection to motor, load equipment and interior radiation ring type Intelligent protection permanent magnet clutch when load is transshipped.

1. in Fig. 1, demonstration be principle of the present utility model:

By conductor external rotor I, permanent magnetism internal rotor II, tri-parts of intelligent protection system III, formed.Be characterized in:

Conductor external rotor I connects motor shaft adapter sleeve, motor shaft (17), motor axle key bar (14) introducing motor power by motor shaft expansion set, and permanent magnetism internal rotor II connects bearing axle adapter sleeve, bearing axle (19), load axle key bar (20) output torque by bearing axle expansion set.The signal code-disc (14) of intelligent protection system III is installed on the input axle (13) of load-side, by speed probe (15), is used for detecting in real time load speed and changes.

During work, by motor shaft band moving-conductor external rotor I and motor synchronous high-speed, rotate its outer induction copper ring and produce eddy current with the magnetic line of force that radially fixedly air gap cuts in the whole magnet ring of interior radiant type in permanent magnetism internal rotor II, eddy current produces induced field and permanent magnetic field interaction simultaneously, drive the interior rotating ring rotation of permanent magnetism internal rotor II, by magnetic couple effect, by bearing axle, the output torque of motor is inputed to load.Realize contactless moment of torsion transmission between motor and load.Utilize efficient radiating apparatus, reduce the temperature of the whole magnet ring of copper ring (4) and radiant type (5), guarantee that system magnetic working is stable.

When load overload (load stall), by the speed probe in intelligent protection system III (15) and signal processor (16) computing, to control signal of motor power, cut off immediately motor power, make motor stalling.In stoping, radiation ring type Intelligent protection permanent magnet clutch is when high speed slippage, and system temperature raises, and even melts copper ring, motor damage.The full-automatic protection of realization to motor load equipment and interior radiation ring type Intelligent protection permanent magnet clutch.

2. in Fig. 2, demonstration be structure of the present utility model:

Conductor external rotor I is connected with rivet (12) by screw that motor shaft expansion set (1), motor shaft adapter sleeve (2), outward turning change (3), copper ring (4), lateral surface fin (9) and outer shroud fin (10) are linked to be to single cylindrical shape is whole, and wherein copper ring (4) and outward turning change (3) are connected with rivet (12) and limit copper ring (4) and outward turning change (3) axially relatively moves for machinery cooperation.Copper ring (4) be positioned at whole magnet ring (5) excircle of radiant type and with whole magnet ring (5) the concentric layout of radiant type, guarantee whole magnet ring (5) the external diameter radial air gap of copper ring (4) internal diameter and radiant type evenly, fix.Radial air gap is even, fixing, can obtain best power source transmission.Conductor external rotor I forms motor power output block.Utilize efficient radiating apparatus, reduce system temperature, guarantee that magnetic working is stable.

Permanent magnetism internal rotor II is comprised of the whole magnet ring of bearing axle expansion set (6), bearing axle adapter sleeve (7), interior rotating ring (8) and radiant type (5), forms load power input part.Adopting viscose glue (12) to be connected is connected as a single entity the whole magnet ring of radiant type (5) and interior rotating disk (8).Adopting screw to connect is connected as a single entity interior rotating disk (8) and bearing axle adapter sleeve (7).The whole magnet ring of radiant type (5) be positioned at outer induction copper ring and with copper ring (4) concentric layout, guarantee that whole magnet ring (5) external diameter of radiant type is even with copper ring (4) internal diameter radial air gap, fix, to obtain best power source transmission.

Intelligent protection system III is comprised of input axle (13), signal code-disc (14), speed probe (15) and signal processor (16), and the connection of employing power line is by speed probe (15) and signal processor (16) is connected as a single entity and give output signal of motor power by signal processor (16).When load overload (load stall), by intelligent protection system III, realize the full-automatic protection to motor, load equipment and interior radiation ring type Intelligent protection permanent magnet clutch.

3. in Fig. 3, demonstration be the utility model conductor external rotor (magnetic conductor) structure installation diagram:

It is whole that conductor external rotor I is linked to be single cylindrical shape by motor shaft expansion set (1), motor shaft adapter sleeve (2), outward turning change (3), copper ring (4), side fin (9), outer shroud fin (10) and rivet (12), and wherein copper ring (4) and outward turning change (3) are connected with rivet (12) and limit copper ring (4) and outward turning change (3) axially relatively moves for machinery cooperation.Effect: be magnetic field force by electromechanics power-conversion and export to load rotary body, utilize high efficiency and heat radiation simultaneously, reduce system temperature, guarantee that system magnetic working is stable.

Wherein in Fig. 3 motor shaft expansion set (1) with motor shaft adapter sleeve (2) for being connected motor shaft use, motor shaft (17) and conductor external rotor I are connected as a single entity and are used as motor power output.

4. in Fig. 4, demonstration be the utility model permanent magnetism internal rotor (permanent magnet) structure installation diagram:

Permanent magnetism internal rotor II is comprised of the whole magnet ring of bearing axle expansion set (6), bearing axle adapter sleeve (7), interior rotating ring (8) and radiant type (5), forms load power input part.Adopting viscose glue (12) to be connected is connected as a single entity the whole magnet ring of radiant type (5) and interior rotating disk (8).Adopting screw to connect is connected as a single entity interior rotating disk (8) and bearing axle adapter sleeve (7).Effect: magnetic field force is converted into moment of torsion and inputs to bearing axle.

Wherein in Fig. 4 bearing axle expansion set (6) with bearing axle adapter sleeve (7) for being connected bearing axle use, bearing axle (19) and permanent magnetism internal rotor II are connected as a single entity and are used as load torque input.

5. in Fig. 5, demonstration be the utility model intelligent protection system layout:

Employing power line connects speed probe (15) and signal processor (16) is connected as a single entity and to one of motor power, export control signal by signal processor (16).If load overload (load stall) is permanent magnetism internal rotor II(permanent magnet) stall; due to slippage principle; conductor external rotor I still keeps the constant cutting permanent magnetism of motor speed internal rotor II(permanent magnet); now the speed probe (15) in intelligent protection system III can pass to signal processor (16) at a process signal of the upper collection of signal code-disc (14); through signal processor single-chip microcomputer, process; then give control signal of motor power, cut off the electricity supply and make motor stalling.In stoping, radiation ring type Intelligent protection permanent magnet clutch is when high speed slippage, and inductor and motor heat up too high and have a negative impact.The full-automatic protection of realization to motor, load equipment and interior radiation ring type Intelligent protection permanent magnet clutch.

Wherein the signal code-disc (14) in Fig. 5 is installed on the input axle (13) of load-side, utilizes speed probe, detects in real time load speed and changes.

6. in Fig. 6, demonstration be the utility model conductor external rotor inductor assembly installation diagram:

Copper ring in inductor assembly (4) and outward turning change (3) coordinate for machinery, with rivet (12), connect and limit copper ring (4) and outward turning change (3) axially relatively moves.Outer induction height speed rotation copper ring (4) is radially fixedly can produce eddy current in the upper induction of copper ring (4) during the magnetic line of force in the air gap cutting whole magnet ring of radiant type (5), and eddy current produces induced field.Rotating ring (8) rotation in the induced field that eddy current produces and permanent magnetic field interact and drive.Inductor radial air gap is even, fixing, is the basis of realizing controllable torque output.For key size.The inductor that copper ring (4) is proprietary material, has greatly improved transmission efficiency.

7. in Fig. 7, demonstration be the utility model permanent magnet assembly installation diagram:

Permanent magnet is comprised of interior rotating ring (8) and the whole magnet ring of radiant type (5).The whole magnet ring of interior rotating ring (8) and radiant type (5) is mechanical interference fits and splicing, adopts viscose glue (12) to be connected the whole magnet ring of radiant type (5) and interior rotating disk (8) are connected as a single entity.The physical dimension control of the whole magnet ring of radiant type (5) and the number of poles that magnetizes are how many, are the bases of realizing controllable torque output.

8. in Fig. 8, demonstration be the utility model assembly drawing:

Adopt standard screws that each part is fitted together by diagram installation site and der group.

9. the whole interior radiation ring type Intelligent protection permanent magnet clutch course of work:

Interior radiation ring type Intelligent protection permanent magnet clutch is non-contact type coupling, replaces motor and is connected with the entity between load, thereby diaxon is separated completely with air gap, allows the larger error of centralization.During electric motor starting, the rotation of conductor external rotor I and motor synchronous high-speed, because conductor external rotor I and permanent magnetism internal rotor II are contactless shaft coupling, permanent magnetism internal rotor II can not rotate immediately.In electric machine rotation process, conductor external rotor I(magnetic conductor) the outer copper ring in single annulus inductor and permanent magnetism internal rotor II(permanent magnet) the whole magnet ring of interior radiant type produce relative rotation, alternating magnetic field is responded to outside and on copper ring, is produced eddy current by air gap, eddy current produces the permanent magnetic field interaction of induced field and the whole magnet ring of radiant type simultaneously, due to load torque effect, passive permanent magnetism internal rotor II is still in static, when active conductor external rotor I turns over after an angle, between induced field in its outer induction copper ring and the permanent magnetic field of driven permanent magnetism internal rotor II, there is certain slip angle, according to magnetic pole two like magnetic poles repel each other, the principle that there is a natural attraction between the sexes, thereby static poised state is broken, the size of the angle that initiatively conductor external rotor I turns over depends on the size of load torque, now driven permanent magnetism internal rotor II can be subject to the effect of electromagnetic torque, electromagnetic torque increases along with the increase at the slip angle of active conductor external rotor I and driven permanent magnetism internal rotor II, when electromagnetic torque surpasses load torque, driven permanent magnetism internal rotor II starts to rotate.Whole process starting current is approximately 2 times of running current, has realized electric machine soft starting, reduces the starting power consumption of motor and avoids causing larger voltge surge.Be particularly useful for frequent motor starting and load variable load the connecting of motor and load under operating mode frequently.

After this, under the driving of motor, initiatively conductor external rotor I will keep certain slip angle synchronous operation with driven permanent magnetism internal rotor II.Thereby drive permanent magnetism internal rotor II along the direction rotation identical with conductor external rotor I, result produces torque on load-side output shaft, thereby band dynamic load rotates.Realize the non contact transmission of power.Realize the moment of torsion transmission between motor and load.In when load variable load, radiation ring type permanent magnet clutch self-regulating rotary declinate, guarantees that moment of torsion transmission is smooth.

Utilize efficient radiating apparatus simultaneously, reduce the temperature of the whole magnet ring of copper ring (4) and radiant type (5), guarantee that system magnetic working is stable.

The maximum load torque that interior radiation ring type Intelligent protection permanent magnet clutch can bear is determined by the peak torque of static torque characteristic, when load torque values surpasses this peak value size, will produce step-out phenomenon.Due to slippage principle, there is not stall in motor.Realized the overload protection to motor.Namely permanent-magnetic outer rotor II stall (load stall), but copper ring (4) in conductor external rotor I still can keep motor speed constant with the fixing magnetic line of force of the whole magnet ring of radiant type (5) of air gap cutting permanent-magnetic outer rotor II radially, motor overload work simultaneously.Now the speed probe (15) in intelligent protection system III can pass to signal processor (16) at a process signal of the upper collection of signal code-disc (14); through signal processor single-chip microcomputer, process; then give control signal of motor power, cut off the electricity supply and make motor stalling.In stoping, radiation ring type Intelligent protection permanent magnet clutch is when high speed slippage, and system heats up too high and has a negative impact.After load overload is eliminated, reset the moment of torsion transmission that motor is realized next process.For remote motor, control assurance is provided.

Interior radiation ring type Intelligent protection permanent magnet clutch package unit has been realized automatically completing of Contactless power transmission and the action of intelligent overload protection, energy-conserving and environment-protective.

Conductor loops adopts magnetic conduction electric conducting material to make, such as copper, aluminium.

Claims (6)

1. interior radiation ring type Intelligent protection permanent magnet clutch, it is characterized in that having the conductor external rotor (I) being connected on motor shaft (17) and the permanent magnetism internal rotor (II) that is connected bearing axle (19), and between conductor external rotor (I) and permanent magnetism internal rotor (II), radially have fixing air gap and realize contactless moment of torsion transmission between motor shaft (17) and bearing axle (19) by magnetic couple effect; In bearing axle (19) one sides, intelligent protection system (III) is housed; and described intelligent protection system (III) is comprised of the input axle (13), signal code-disc (14), speed probe (15) and the signal processor (16) that are arranged on load-side, employing power line connects speed probe (15) and signal processor (16) is connected as a single entity and to one of motor power, export control signal by signal processor (16).

2. interior radiation ring type Intelligent protection permanent magnet clutch according to claim 1; it is characterized in that described conductor external rotor (I) is to consist of the outward turning change (3) and the conductor loops (4) that are connected on motor shaft (17), conductor loops (4) is fixed on outward turning change (3) inner side.

3. interior radiation ring type Intelligent protection permanent magnet clutch according to claim 2, is characterized in that rotating ring (3) outside is fixed with outer shroud fin (10) outside, and rotating ring (3) side is fixed with side fin (9) outside.

4. interior radiation ring type Intelligent protection permanent magnet clutch according to claim 2; it is characterized in that outward turning change (3) is connected on motor shaft (21) by motor shaft adapter sleeve (2); motor shaft adapter sleeve (2) is outer is simultaneously equipped with motor shaft expansion set (1), and motor shaft expansion set (1) is connected motor shaft (21), motor axle key bar (22) as motor power output mechanism with motor shaft adapter sleeve (2).

5. interior radiation ring type Intelligent protection permanent magnet clutch according to claim 1; it is characterized in that described permanent magnetism internal rotor (II) is comprised of the interior rotating disk (8) and the whole magnet ring of radiant type (5) that are connected on bearing axle (19), the whole magnet ring of radiant type (5) is fixed on interior rotating disk (8) outer shroud.

6. interior radiation ring type Intelligent protection permanent magnet clutch according to claim 5, is characterized in that by bearing axle adapter sleeve (7), interior rotating disk (8) and bearing axle (23) being connected as a single entity; And with bearing axle expansion set (6), bearing axle adapter sleeve (7) and bearing axle (23), load axle key bar (16) are connected as a single entity and are inputted as load power.

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