CN206575317U - Soft start and distance-limiting type driven by pulley drive device - Google Patents
Soft start and distance-limiting type driven by pulley drive device Download PDFInfo
- Publication number
- CN206575317U CN206575317U CN201720121611.0U CN201720121611U CN206575317U CN 206575317 U CN206575317 U CN 206575317U CN 201720121611 U CN201720121611 U CN 201720121611U CN 206575317 U CN206575317 U CN 206575317U
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- China
- Prior art keywords
- motor
- output shaft
- rotor
- axle sleeve
- soft start
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- Expired - Fee Related
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Abstract
A kind of soft start and distance-limiting type driven by pulley drive device, it includes driving and driven part, driving part contains contains the conductor rotor body supported by web, small pulley, bearing with the motor output shaft of motor connection, tensioner connector, axle sleeve, p-m rotor, slave unit, and its main points is：Axle sleeve is connected on motor output shaft by tensioner connector, and p-m rotor is provided with axle sleeve, and p-m rotor outer rim is provided with permanent magnet；Small pulley is positioned close at the motor output shaft of motor, and by a pair of roller bearings on the motor output shaft.Separated between driving part and slave unit by roller bearings, separate motion；Separated between p-m rotor and conductor rotor body by a cartridge type air-gap, when permanent magnet and electric conductor do relative motion, vortex flow and induced field are just produced in electric conductor, due to the interaction of permanent magnetic field and electromagnetic field, driving torque is generated, electric conductor and permanent magnet is realized（Motor and load）Between torque transmission.
Description
Technical field
The utility model is related to mechanical power transmission system technical field, more particularly to a kind of permanent-magnet eddy current Flexible Transmission
Soft start and distance-limiting type driven by pulley drive device.
Background technology
Belt drive rubs to be stretched in the adhesive tape at least two-wheeled as center flexing part by being produced between band and wheel tread
Power is wiped to transmit motion and power.Though it has buffering, absorbing, overload protective function, buffering absorbing is limited, and skidding makes band
Tribo-charging phenomenon can be produced between the lost of life, with belt wheel.
Some equipment requirement starting under load, larger load and the fragile transmission belt of the impact of inertia force and transmission mechanism
Or shorten its service life, therefore the protection of safe and reliable starting characteristic to working machine and motor is quite important.
Torque-limiting hydraulic coupler is employed in order to solve the above problems, in transmission as soft starting device（For example
CN201073191Y）.But because the internal structure of the fluid coupling is more complicated, on-site maintenance is more difficult；Install different
Easily occur abnormal sound during the heart, the vibration of motor and decelerator can be made big, while causing the damage of bearing, sealing ring；Transmission effect
Rate is low, unstable, influences Belt Conveying ability；Intermittent oiling is needed during fluid coupling oil leak, sealing, bearing, scene is changed
It is difficult to accurately control filling amount, makes Belt Conveying acc power uncontrollable.
The static speed belt wheel-type permanent magnet clutch of radiation ring type in the U of CN 203398973, although being solved from principle
Soft start, overload slippage protection are with shutting down speed governing problem；But, belt wheel makes motor shaft produce very big moment of flexure away from motor, passes
It is dynamic can cause it is infeasible.
Friction plate is posted on the U oil pumper soft start couplers of CN 202790213, four pieces of centrifugal-block its peripheries, actively
Centrifugal-block is close to coupling drum under the influence of centrifugal force when wheel reaches certain rotating speed, occurs friction transmission torsion with coupling drum
Square；The structure centrifugal force is difficult to grasp control, and reliability has problem.
Attached with frequency converters, reaches preferable soft start effect by changing the electrical characteristics of actuator, but the program
There is also electric complicated, reliability reduction, detent torque deficiency problem.
The content of the invention
The purpose of this utility model is that there is provided a kind of permanent-magnet eddy current Flexible Transmission in view of the foregoing defects the prior art has
Soft start and distance-limiting type driven by pulley drive device
The utility model is the technical scheme adopted is that a kind of soft start and distance-limiting type driven by pulley drive device, it includes
Driving part and slave unit, driving part contain with the motor output shaft of motor connection, tensioner connector, axle sleeve, p-m rotor,
Slave unit contains the conductor rotor body supported by web, small pulley, bearing, it is characterised in that：Axle sleeve passes through tensioner connector
It is connected on motor output shaft, p-m rotor is installed on axle sleeve, p-m rotor outer rim is provided with permanent magnet；Small pulley is arranged on
At the motor output shaft of motor, and by a pair of roller bearings on the motor output shaft.
Edge is fixed with web and small pulley screw on cartridge type electric conductor, conductor rotor body in above-mentioned conductor rotor body
It is connected as a single entity.
Tensioner connector as described above is expansion sleeve.
For the ease of radiating, radiating groove is provided with the external edge of conductor rotor；In addition, being provided with axle sleeve to production
Web on the paddle wheel fan that raw vortex heat is cooled down, conductor rotor body is also provided with air vent.
Separated between the driving part slave unit of this structure by roller bearings, separate motion；P-m rotor
Separated between conductor rotor by a cartridge type air-gap, when permanent magnet does relative motion with electric conductor, in electric conductor just
Produce vortex flow and induced field.Due to the interaction of permanent magnetic field and electromagnetic field, driving torque is generated, is realized former dynamic
Contactless torque between machine and load is transmitted.The utility model connects for magnetic-force flexible, and soft start, vibration damping and overload can be achieved
Protection.
The characteristics of the utility model be small pulley close to prime mover, the moment of flexure that the suppressive jamming of V belt translation is produced to motor shaft subtracts
It is small.Small pulley by a pair of roller bearings on the output shaft of motor, it is separate with motor shaft
Motion.
Conductor rotor outer rim is machined with radiating groove, and conductor rotor web, which is provided with air vent, axle sleeve, is equipped with blast fan
The vortex heat of generation is cooled down.
The present invention can bring following beneficial effect：
The delay start time, peak value and the duration of starting current are reduced, can be selected in the type selecting of motor
The less motor of capacity.
When overloading, coupling can be departed from rapidly, infringement is not resulted in motor, driving member and adhesive tape, electricity is extended
The service life of machine, driving member
Stable drive, reduces vibration and noise, and the energy consumption of system is reduced.Compared with fluid coupling, it can be reduced in energy consumption
2% -3%.
Transmission efficiency is more than 96%；Shorten the mean down time.
Brief description of the drawings
Fig. 1 is structure schematic diagram of the present utility model；
Fig. 2 is the graph of relation of driving torque of the present utility model and sliding speed (slip).
Critical piece explanation in accompanying drawing：1 is motor output shaft, and 2 be expansion sleeve, and 3 be axle sleeve, and 4 be key, and 5 turn for permanent magnetism
Daughter, 6 be permanent magnet, and 7 be paddle wheel fan, and 8 be nut, and 9 be cartridge type conductor rotor body, and 10 be cartridge type conductive copper plate, and 11 be spiral shell
Nail, 12 be small pulley, and 13 be bearing, and 14 be radiating groove, and 15 be air vent.
Embodiment
As shown in Figure 1-2, the utility model concrete structure and assembling scheme are as follows:
Driving part is the motor output shaft 1 of motor connection, expansion sleeve 2, axle sleeve, p-m rotor body 5；Slave unit is logical
Cross the cartridge type conductor rotor body 9 of web support, small pulley 12, bearing 13；Axle sleeve 3 is connected to motor output shaft 1 by expansion sleeve
On, p-m rotor body 5 is installed, the outer rim of p-m rotor body 5 is provided with permanent magnet 6 on axle sleeve 3；Small pulley 12 is positioned close to electricity
At machine output shaft 1, and it is supported on by a pair of rolling bearings 13 on the motor output shaft 1.Fixed in the inner edge of cartridge type conductor rotor body 9
There is the web on cartridge type conductive copper plate, cartridge type conductor rotor body 9 to be connected as a single entity with small pulley 12 with screw 11.
In addition, being provided with radiating groove 14 at the outer rim of cartridge type conductor rotor body 9；It is provided with axle sleeve 3 to producing whirlpool
Web on the paddle wheel fan 7 that stream heat is cooled down, cartridge type conductor rotor body 9 is also provided with air vent 15.
Specifically, motor output shaft 1 is connected by expansion sleeve 2 with axle sleeve 3, and axle sleeve 3 passes through key 4 and p-m rotor body 5
Connection, the outer rim of p-m rotor body coheres permanent magnet 6, and is protected with protective jacket, and magnet N, S poles are alternately arranged.Cartridge type conductive copper
Plate 10 is screwed in the inner edge of cartridge type conductor rotor body 9, web and the screw 11 of small pulley 12 of cartridge type conductor rotor body
Connect as one.Small band axle hole and a pair of outer shrouds of rolling bearing 13 coordinate, and rolling bearing inner ring coordinates with axle sleeve 3.So, it is defeated
Enter, output campaign shares same axis, two kinds of motions are separate.
The kind of drive of the present utility model is permanent-magnet eddy current Flexible Transmission.P-m rotor body 5 is active, cartridge type conductor rotor
Body 9 is driven, fixes air-gap by a cartridge type therebetween and separates.When motor drives permanent magnet to rotate at a high speed, according to phase
To motion principle, electric conductor copper coin cutting magnetic line just produces vortex flow in electric conductor, and vortex flow produces induced field again.
Due to the interaction of permanent magnetic field and induced field, driving torque is generated, the nothing realized between motor and small pulley connects
Touch torque transmission.Within the specific limits, the size for the angle that conductor rotor is turned over depends on the size of belt wheel load torque, this
When p-m rotor can be acted on by electromagnetic torque, electromagnetic torque is constantly adjusted with the slippage of conductor rotor and p-m rotor,
Maintain steady running.
Soft start-up process of the present utility model is as follows：
During electric motor starting, p-m rotor body and motor synchronous rotary, due to the cartridge type conductive copper on cartridge type conductor rotor body
The magnet of plate 10 and p-m rotor has fixed air gap, and cartridge type conductor rotor body can not rotate immediately with small pulley, i.e. motor
No Load Start.Motor is rotated further, and the cartridge type conductive copper plate 10 of cartridge type conductor rotor body produces relative rotation with permanent magnet, is being handed over
Varying magnetic field effect is lower to produce vortex flow, and vortex flow produces induced field and permanent magnetic field compound action, make cartridge type conductor rotor body with
Small pulley produces torque.Fig. 2 is the driving torque and sliding speed of certain soft start and distance-limiting type driven by pulley drive device（Slip）'s
Relation curve.With the increase of sliding speed, torque quickly reaches maximum 500Nm, and motor reaches rated speed, this sliding speed
200r/min is best operating point.The time of this process directly drives long than belt wheel, that is extend the startup time（Delay
Start）.At the same time, starting current is greatly reduced, and realizes soft start.
Limit square function of the present utility model：
As seen in Figure 2, when slip is interval in 0~200r/min, output torque increases with the increase of slip
Greatly, the normal range of operation of magnetic coupling is belonged to, the maximum of output torque is 500 Nm, assign it as torque-limiting（Limit
Square）.And when slip is more than 200r/min, output torque value gradually falls after rise after torque capacity is reached, with the increase of load,
Output speed is reduced, as slip increases, the power of the input power of motor again smaller than motor in torque capacity, and this is bright
The aobvious overload protection ability for embodying permanent-magnet eddy current Flexible Transmission.When stall occurs in load, motor input power is less than most
The input power of motor during big torque, that is to say, that once there is stall phenomenon in system work process, in locked-rotor torque
During more than torque-limiting, defeated people's power of motor is not but not increase reduces on the contrary, motor can with no-load running or shutdown, from
And motor, driving member and adhesive tape are protected, fully achieve overload protection.
Certainly the accurate torque-limiting for calculating permanent-magnet eddy current Flexible Transmission, is larger than the nominal torque of motor, ability
Realize limit square function.
Permanent-magnet eddy current Flexible Transmission is to realize that torque is transmitted by slip, and slip is bigger, and shaft coupling transmission torque is bigger, production
Raw vortex heat is also big.The utility model belongs to distance-limiting type permanent-magnet eddy current Flexible Transmission, and normal operation sliding ratio is no more than 5%, whirlpool
Heat is flowed by rotating air blast cooling equipped with blast fan on rotor.
Claims (5)
1. a kind of soft start and distance-limiting type driven by pulley drive device, it includes driving part and slave unit, driving part contain with
Motor output shaft, tensioner connector, axle sleeve, the p-m rotor of motor connection, slave unit contain the conductor supported by web and turned
Daughter, small pulley, bearing, it is characterised in that：Axle sleeve is connected on motor output shaft by tensioner connector, is provided with axle sleeve
P-m rotor, p-m rotor outer rim is provided with permanent magnet；Small pulley is positioned close at the motor output shaft of motor, and by a pair
Roller bearings are on the motor output shaft.
2. soft start according to claim 1 and distance-limiting type driven by pulley drive device, it is characterised in that：Edge in conductor rotor body
The web being fixed with cartridge type electric conductor, conductor rotor body is connected as a single entity with small pulley with screw.
3. soft start according to claim 1 and distance-limiting type driven by pulley drive device, it is characterised in that：Described tensioner connection
Part is expansion sleeve.
4. soft start according to claim 1 or 2 and distance-limiting type driven by pulley drive device, it is characterised in that：In conductor rotor
Radiating groove is provided with external edge.
5. soft start according to claim 1 and distance-limiting type driven by pulley drive device, it is characterised in that：It is provided with axle sleeve
Air vent is also provided with to producing the web on the paddle wheel fan that vortex heat is cooled down, conductor rotor body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720121611.0U CN206575317U (en) | 2017-02-10 | 2017-02-10 | Soft start and distance-limiting type driven by pulley drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720121611.0U CN206575317U (en) | 2017-02-10 | 2017-02-10 | Soft start and distance-limiting type driven by pulley drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206575317U true CN206575317U (en) | 2017-10-20 |
Family
ID=60058146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720121611.0U Expired - Fee Related CN206575317U (en) | 2017-02-10 | 2017-02-10 | Soft start and distance-limiting type driven by pulley drive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206575317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108551251A (en) * | 2018-06-21 | 2018-09-18 | 大连交通大学 | A kind of slip self-adapting type magnetic coupling transmission device |
-
2017
- 2017-02-10 CN CN201720121611.0U patent/CN206575317U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108551251A (en) * | 2018-06-21 | 2018-09-18 | 大连交通大学 | A kind of slip self-adapting type magnetic coupling transmission device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171020 Termination date: 20190210 |