CN102720776A - Short extension side system magnetic conductive electromagnetic fan clutch - Google Patents
Short extension side system magnetic conductive electromagnetic fan clutch Download PDFInfo
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- CN102720776A CN102720776A CN201210156702XA CN201210156702A CN102720776A CN 102720776 A CN102720776 A CN 102720776A CN 201210156702X A CN201210156702X A CN 201210156702XA CN 201210156702 A CN201210156702 A CN 201210156702A CN 102720776 A CN102720776 A CN 102720776A
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- main shaft
- fan clutch
- electromagnetic core
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Abstract
The invention relates to an electromagnetic fan clutch, and specifically to Short extension side system magnetic conductive electromagnetic fan clutch. The electromagnetic fan clutch comprises a main shaft, an electromagnetic iron core which is rotarily connected with the main shaft, an electromagnetic coil which is encapsulated in an annular groove of the electromagnet core, and a driving wheel which is fixed on the main shaft, wherein the driving wheel and the electromagnetic iron core are arranged with spacing. The outer rim of the driving wheel extends toward the direction of the electromagnetic iron core, which forms an extension, and the length of the extension is less than the thickness of the driving wheel. The electromagnetic fan clutch provided by the invention which has the advantages of simple structure and utility reduces the possibility of the friction and the collision between the skirt of a traditional driving wheel and the electromagnetic iron core, prolongs the whole service life of electromagnetic fan clutch, reduces the machining accuracy requirements of the main shaft, and reduces the processing cost.
Description
Technical field
Invention relates to a kind of electromagnetic fan clutch, and particularly a kind of weak point is along side-line magnetic conduction electromagnetic fan clutch.
Technical background
Electromagnetic fan clutch of the prior art; Mainly be through being that fixedly the electromagnetic coil energising back in the ring recess of electromagnetic core interior lines produces magnetic force; Through attracting the adhesive dish, make the effective adhesive of adhesive dish and drive plate through magnetic force, rotate through the moving fan fixed disk of adhesive dribbling then with the affixed drive plate of main shaft; Driving force on the main shaft is delivered on the fan that is fixed on the fan fixed disk, thus the drive fan running.For obtain making between drive plate and the adhesive dish can adhesive the suction-combining force; Extend into long shirt rim to the electromagnetic core direction around generally adopting along adhesive dish outer; Make the shirt rim be in the state that electromagnetic core is coated basically; And make the enough little distance of maintenance between this shirt rim and electromagnetic core, thereby such mentality of designing is to want that the magnetic line of force that electromagnetic coil is produced passes drive plate as much as possible and produces enough magnetic flux, the enough big the suction-combining force of final generation.And according to the emitting shape distribution character of the magnetic line of force; The magnetic line of force around in the shirt rim is mostly with parallel with the shirt rim; And according to the definition of magnetic flux; Effectively magnetic flux is to be created on the plane vertical with magnetic field, so as far as the shirt rim, the area that can effectively transmit magnetic flux only is on the cross section of shirt rim; In addition; Drive plate is followed the main shaft high-speed rotation; For the shirt rim that prevents drive plate with electromagnetic core friction and collision does not take place in high-speed rotation, keep the gap of transmission shirt rim and electromagnetic core enough little again, just require the machining accuracy of electromagnetic core and drive plate and shirt rim thereof very high; Increase processing cost, reduced working efficiency.Equally, in order to reduce the off-centre of the main shaft that drives the drive plate rotation, also the machining accuracy to main shaft has proposed requirement, has increased the processing cost of main shaft too.Along with the wearing and tearing meeting between the various counterparts between main shaft increases gradually; Make eccentric phenomena serious day by day; When off-centre acquires a certain degree; Electromagnetic fan clutch damages because of the generation friction and the collision of drive plate shirt rim and electromagnetic core, and this structure between drive plate shirt rim and electromagnetic core will make the operating life of electromagnetic fan clutch shorten greatly, has increased user's cost significantly.
Summary of the invention
Deficiency to above-mentioned existing technology existence; The purpose of invention is to provide a kind of weak point along side-line magnetic conduction electromagnetic fan clutch; Be intended to not reduce under the condition of transmission of magnetic flux and reduce requirement on machining accuracy the drive plate shirt rim; Increase work efficiency, effectively prolong the operating life of electromagnetic fan clutch, reduce user's maintenance cost.
For this reason, inventing the technological scheme that provides is:
A kind of weak point is along side-line magnetic conduction electromagnetic fan clutch; Comprise main shaft 1, be rotatably connected on encapsulation in the electromagnetic core 9, electromagnetic core 9 circular grooves of main shaft 1 electromagnetic coil 10 and and electromagnetic core 9 between the gap arrange and be fixed in the drive plate 8 on the main shaft 1 that the outer rim of drive plate 8 is extended its length L of formed outer less than drive plate 8 thickness h to electromagnetic core 9 directions.
The present technique scheme can be optimized for, and the inner side surface of drive plate 8 outers and lower edge plane, outer form the angle less than 90 °, and electromagnetic core 9 is provided with less than 90 ° of chamferings near a side end face and the excircle intersection of drive plate 8, and the angle of angle and chamfering equates.
The present technique scheme can also be optimized for, and described angle and chamfering are 45 °.Chamfering becomes 45 ° in the drive plate 8, and the shirt rim is short, under the abominable working environment of motor; Be difficult for making the long-pending plug of dust; And be prone to make dust in the landing of 45 place, avoided filling up the gap between drive plate 8 and the iron core 9, and made drive plate 8 and iron core 9 that locking take place because of the dust over time accumulation; Cause iron core 9 to follow drive plate 8 and rotate simultaneously, break the power line that is fixed.So dustproof, anti-effect of breaking that this structure has played.
It is concordant with the lower edge of electromagnetic core 9 chamferings that the present technique scheme can further be optimized for the outer lower edge of described drive plate 8.
Compared with prior art have following advantage:
1, the shirt rim structure of invention abandoning tradition drive plate is guaranteeing under the condition that magnetic flux fully transmits, and the machining accuracy requirement reduction to drive plate and electromagnetic core has improved work efficiency, has reduced processing cost.
2, the chamfering structure of raised structures on the drive plate outer of invention and electromagnetic core outer can make full use of the transmission that limited space increases magnetic flux, ensures adhesive gravitation, effectively transmits the rotating power that is used to dispel the heat.
3, the chamfering structure of raised structures on the drive plate outer of invention and electromagnetic core outer has reduced the possibility that friction and collision take place between traditional drive plate shirt rim and electromagnetic core, has prolonged the electromagnetic fan clutch overall operation life-span.
4, invent simple structure, practicality, and also reduced the machining accuracy requirement of main shaft, reduced processing cost.
Description of drawings
Fig. 1 is the structural representation of invention.
1. main shaft 2. driven discs 3. fan fixed disk 4. fixing bolts 5. magnet fixed discs 6. little adhesive dish 7. big adhesive dish 8. drive plates 9. electromagnetic cores 10. electromagnetic coils 11. electromagnetic coils 12. keys.
Embodiment
With reference to shown in Figure 1
Embodiment 1; A kind of weak point is along side-line magnetic conduction electromagnetic fan clutch; Comprise main shaft 1, be rotatably connected on encapsulation in the electromagnetic core 9, electromagnetic core 9 circular grooves of main shaft 1 electromagnetic coil 10 and and electromagnetic core 9 between the gap arrange and be fixed in the drive plate 8 on the main shaft 1 that the outer rim of drive plate 8 is extended its length L of formed outer less than drive plate 8 thickness h to electromagnetic core 9 directions.Big sucker 7 inboards are provided with little adhesive dish 6, magnet fixed disc 5, with the affixed driven disc 2 of fixing 5 dishes of magnet, be fixed on electromagnetic coil 11, spring sheet in the coil groove of electromagnetic core 9, on magnet 5 relative positions on fan fixed disk 3 and the magnet fixed disc 2, be provided with close magnet.Magnet fixed disc 5 and main shaft 1 are connected through bearing.Main shaft 1 is connected with drive plate 8 through woodruff key 12.Fan fixed disk 3 and main shaft 1 are connected through bearing.Electromagnetic core 9 and main shaft 1 are connected through bearing.Fan fixed disk 3 uses nut and fan to fix through fixing bolt 4.During work, power source drives main shaft 1 rotation, and main shaft 1 drives drive plate 8 rotations through woodruff key 12.In 1 fast working state, fan fixed disk 3 is followed main shaft 1 through the frictional force in the bearing and is trackslipped, and drives through fixing bolt 4 and the fixing fan low speed rotation of nut; Under 2 fast working staties, the driving power 14 of electromagnetic coil 11 gives electromagnetic coil 11 power supplies, makes electromagnetic core 9 generation magnetic fields; The outer rim of magnetic field drive plate 8 is extended its length L of formed outer to electromagnetic core 9 directions and is passed on the drive plate 8 less than the structure of drive plate 8 thickness h and the end face between electromagnetic core 9 and the drive plate 8; Make 8 pairs of little adhesive dishes 6 of drive plate produce attraction force, and make little adhesive dish 6 and drive plate 8 adhesives, with drive plate 8 rotations; Driving magnet fixed disc 5 rotates; The close magnet that on the magnet relative position on fan fixed disk 3 and the magnet fixed disc 5, is provided with along with the rotation of magnet fixed disc 5, is done the motion of cutting magnetic line in the magnetic field that the magnet on magnet fixed disc 5 produces; Produce foucault current; Foucault current produces new magnetic field, under the effect of magnetic force, realizes flexibly connecting of 5 of fan fixed disk 3 and magnet fixed discs, drives through the fixing fan rotation under 2 speed of fixing bolt 4 and nut; In 3 fast working staties; Electromagnetic coil 11 driving powers 14 give electromagnetic coil 11 power supplies; The driving power 13 of electromagnetic coil 10 supplies power for electromagnetic coil 10 simultaneously, makes electromagnetic core 9 generation magnetic fields, and the outer rim of magnetic field drive plate 8 is extended its length L of formed outer to electromagnetic core 9 directions and is passed on the drive plate 8 less than the structure of drive plate 8 thickness h and the end face between electromagnetic core 9 and the drive plate 8; Make the little adhesive dish of 8 pairs of drive plates 6, big adhesive dish 7 produce attraction force simultaneously; And make little adhesive dish 6, big adhesive dish 7 simultaneously and drive plate 8 adhesives, and with drive plate 8 rotations, big adhesive dish 7 is a built-in structure with fan fixed disk 3; Fan fixed disk is rotated with drive plate under the drive of big adhesive dish 7 synchronously; Make fan high speed rotating under 3 speed of fixing through fixing bolt 4 and nut, little adhesive dish 6 drives magnet fixed disc 5 through shell fragment and rotates the close magnet that on the magnet relative position on fan fixed disk 3 and the magnet fixed disc 5, is provided with; Rotation along with magnet fixed disc 5; Do the motion of cutting magnetic line in the magnetic field that magnet on magnet fixed disc 5 produces, produce foucault current, foucault current produces new magnetic field; Under the effect of magnetic force, realize flexibly connecting of 5 of fan fixed disk 3 and magnet fixed discs, the fixing bolt 4 that passes through under the working state of 3 fast high speed rotating is played the effect that replenishes power with the fixing fan of nut.
Above content is the further explain that combines concrete preferred implementation that invention is done, and can not assert that the practical implementation of invention is confined to these explanations.For the those of ordinary skill under the invention, under the prerequisite that does not break away from thinking of the present invention, can also make simple deduction or replace, all should be regarded as belonging to the protection domain of invention.
Claims (4)
1. a weak point is along side-line magnetic conduction electromagnetic fan clutch; Comprise main shaft (1), be rotatably connected on encapsulation in the electromagnetic core (9), electromagnetic core (9) circular groove of main shaft (1) electromagnetic coil (10) and and electromagnetic core (9) between the gap arrange and be fixed in the drive plate (8) on the main shaft (1), it is characterized in that the outer rim of said drive plate (8) is extended its length of formed outer (L) less than drive plate (8) thickness (h) to electromagnetic core (9) direction.
2. a kind of weak point according to claim 1 is along side-line magnetic conduction electromagnetic fan clutch; The inner side surface and the lower edge plane, outer that it is characterized in that said drive plate (8) outer form the angle less than 90 °; Electromagnetic core (9) is provided with less than 90 ° of chamferings near a side end face and the excircle intersection of drive plate (8), and the angle of angle and chamfering equates.
3. a kind of weak point according to claim 2 is characterized in that along side-line magnetic conduction electromagnetic fan clutch described angle and chamfering are 45 °.
According to the arbitrary described a kind of weak point of claim 2-3 along side-line magnetic conduction electromagnetic fan clutch, it is characterized in that the outer lower edge of described drive plate (8) is concordant with the lower edge of electromagnetic core (9) chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210156702XA CN102720776A (en) | 2012-05-21 | 2012-05-21 | Short extension side system magnetic conductive electromagnetic fan clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210156702XA CN102720776A (en) | 2012-05-21 | 2012-05-21 | Short extension side system magnetic conductive electromagnetic fan clutch |
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| Publication Number | Publication Date |
|---|---|
| CN102720776A true CN102720776A (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210156702XA Pending CN102720776A (en) | 2012-05-21 | 2012-05-21 | Short extension side system magnetic conductive electromagnetic fan clutch |
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| CN (1) | CN102720776A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016129A (en) * | 2012-12-09 | 2013-04-03 | 王桂岳 | Electromagnetic fan clutch with built-in friction drive |
| CN103016130A (en) * | 2012-12-18 | 2013-04-03 | 王桂岳 | Three-speed electromagnetic fan clutch with friction drive |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2063994U (en) * | 1989-09-04 | 1990-10-17 | 王志华 | Electromagnectic clutch with shield |
| CN2578604Y (en) * | 2001-07-12 | 2003-10-08 | 江苏海狮机械集团有限公司 | Brake clutch of folder |
| JP2003307237A (en) * | 2002-04-15 | 2003-10-31 | Ntn Corp | Rotation transmitting device |
| CN201517441U (en) * | 2009-10-15 | 2010-06-30 | 龙口市汽车风扇离合器厂 | Radiating three-speed electromagnetic fan clutch |
| CN101881209A (en) * | 2009-07-07 | 2010-11-10 | 龙口市汽车风扇离合器厂 | Three-speed electromagnetic fan clutch |
| CN202883808U (en) * | 2012-05-21 | 2013-04-17 | 龙口市汽车风扇离合器厂 | Short-edge side magnetism-conducting electromagnetic fan clutch |
-
2012
- 2012-05-21 CN CN201210156702XA patent/CN102720776A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2063994U (en) * | 1989-09-04 | 1990-10-17 | 王志华 | Electromagnectic clutch with shield |
| CN2578604Y (en) * | 2001-07-12 | 2003-10-08 | 江苏海狮机械集团有限公司 | Brake clutch of folder |
| JP2003307237A (en) * | 2002-04-15 | 2003-10-31 | Ntn Corp | Rotation transmitting device |
| CN101881209A (en) * | 2009-07-07 | 2010-11-10 | 龙口市汽车风扇离合器厂 | Three-speed electromagnetic fan clutch |
| CN201517441U (en) * | 2009-10-15 | 2010-06-30 | 龙口市汽车风扇离合器厂 | Radiating three-speed electromagnetic fan clutch |
| CN202883808U (en) * | 2012-05-21 | 2013-04-17 | 龙口市汽车风扇离合器厂 | Short-edge side magnetism-conducting electromagnetic fan clutch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016129A (en) * | 2012-12-09 | 2013-04-03 | 王桂岳 | Electromagnetic fan clutch with built-in friction drive |
| CN103016130A (en) * | 2012-12-18 | 2013-04-03 | 王桂岳 | Three-speed electromagnetic fan clutch with friction drive |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 265717 Chen Jiacun, North horse town, Longkou, Shandong Applicant after: LONGKOU ZHONGYU AUTOMOBILE FAN CLUTCH CO., LTD. Address before: 265717 Shandong city of Yantai Province, Ma Zhen Chen Jia Longkou Applicant before: Car Fan Clutch Factory, Longkou City |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: LONGKOU CITY AUTOMOBILE FAN CLUTCH FACTORY TO: LONGKOU ZHONGYU AUTOMOBILEFAN CLUTCH CO., LTD. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20121010 |