CN102494050A - Flexible connection device, and manufacturing method thereof and automobile electromagnetic fan clutch - Google Patents
Flexible connection device, and manufacturing method thereof and automobile electromagnetic fan clutch Download PDFInfo
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- CN102494050A CN102494050A CN201110404225XA CN201110404225A CN102494050A CN 102494050 A CN102494050 A CN 102494050A CN 201110404225X A CN201110404225X A CN 201110404225XA CN 201110404225 A CN201110404225 A CN 201110404225A CN 102494050 A CN102494050 A CN 102494050A
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Abstract
The invention discloses a flexible connection device, and a manufacturing method thereof and an automobile electromagnetic fan clutch. The flexible connection device comprises a fan fixing disk and a magnet fixing disk, wherein permanent magnets are uniformly distributed on the surface of the outer circumference of the magnet fixing disk; soft magnets corresponding to the permanent magnets are uniformly distributed in the circumferential surface of an inner cavity of a disk body of the fan fixing disk; the magnet fixing disk drives the fan fixing disk to rotate; a suction direction of a magnetic field points to the center of a disk body of the magnet fixing disk from the surface of the outer circumference of the magnet fixing disk, so that radial forces acting on respective transmission bearings are counteracted, and rolling pillars or rolling balls arranged in inner annular rolling rails and outer annular rolling rails of the transmission bearings of the disk bodies are in a normal rolling state; therefore, the problem of lubricating oil leakage caused by single-side eccentric abrasion of the rolling pillars or the rolling balls of the transmission bearings is solved. The invention also provides the manufacturing method for the flexible connection device and the automobile electromagnetic fan clutch using the flexible connection device.
Description
The present invention requires to be proposed by the claimant; The applying date is on December 07th, 2010, and application number is 201010588608.2, and denomination of invention is the preference of the application of " a kind of automobile electromagnetic fan clutch "; And the applying date is on December 27th, 2010; Application number is 201010621450.4, and denomination of invention is the preference of the application of " magnet fixed disc that has whirlwind heat radiation fan blade ", and the full content of these two applications is quoted through integral body and is incorporated into this.
Technical field
The present invention relates to a kind of connection set and production method thereof and automobile electromagnetic fan clutch, particularly relate to the connection set and production method and and the automobile electromagnetic fan clutch that comprise permanent magnet and soft magnet.
Background technique
To the present invention, those skilled in the art can be with reference to the Chinese patent document, and denomination of invention is " electromagnetic fan clutch of high-power heavy strong force for vehicle soft drive ", and publication number is the patent text of " CN101968004A ".
The driving of automobile electromagnetic fan clutch connects in the existing technology; Mainly be connected with and be spacing on the end face of magnet fixed disc and be connected with some block permanent magnets by fan fixed disk inner chamber circumferential ring cover; The soft magnet that is provided with in the resonator end surface in the fan fixed disk relatively; The relative soft magnet of permanent magnet rotates and produces electric convolution magnetic field, and the soft drive fan fixed disk drives fan blade and rotates, to realize the radiating and cooling to the engine operation water temperature.Because described magnet fixed disc all is to be connected driving with transmission shaft through drive bearing with fan fixed disk.It exists not enough: the one, act on larger axis on magnet fixed disc and the fan fixed disk respectively to mutual pulling force; The roller and the ball that have caused being equipped with in the drive bearing inner and outer rings rolling rail separately are in the eccentric wear state always; Cause bearing seal sternly not cause to place lubricant grease in it to leak outside and release, aggravated the eccentric wear wearing and tearing of drive bearing separately and damaged; The 2nd, distribution is connected with the position of some block permanent magnets on the position that is provided with soft magnet in the said fan fixed disk in the resonator end surface and the magnet fixed disc end face; All nearer at a distance of the position of drive bearing separately; The heat of high temperature that is produced by the magnetic field electric convolution during work is conducted very soon and is given drive bearing; Electromagnetic fan clutch is inner in the relatively poor automobile of ventilation and heat condition; Very easyly make the lubricant grease of sealing in the drive bearing receive the heat of high temperature dilution and overflow, equally also aggravated the drive bearing breaking-up of wearing and tearing prematurely.
The driving of automobile electromagnetic fan clutch connects in the existing technology; Mainly form by fan fixed disk and magnet fixed disc; Utilize the soft magnet that is provided with in the resonator end surface in the fan fixed disk, with the permanent magnet that the end face of magnet fixed disc is provided with, the relative soft magnet of permanent magnet rotates and produces electric convolution magnetic field; The soft drive fan fixed disk drives fan and rotates, to realize the radiating and cooling to the engine operation water temperature.
Because described magnet fixed disc all is to be connected driving with transmission shaft through drive bearing with fan fixed disk; In actual conditions; Owing to act on larger axis on magnet fixed disc and the fan fixed disk respectively to mutual pulling force, roller that has caused being equipped with in the drive bearing separately or ball make bearing inner and outer rings rolling rail be in the eccentric wear state to one-sided the exerting pressure of bearing inner and outer rings rolling rail always; Finally cause bearing seal not tight; Cause excessive the releasing of lubricant grease that places in it, aggravated the eccentric wear wearing and tearing of bearing separately, damage until drive bearing.
Simultaneously; The distributing position of permanent magnet on the distributing position of soft magnet and the magnet fixed disc end face in the interior resonator end surface of said fan fixed disk; All nearer at a distance of the position of disk body drive bearing separately; The heat of high temperature that soft magnet and permanent magnet field electric convolution produce during electromagnetic fan clutch work can be conducted to drive bearing very soon, and is inner at the automobile electromagnetic fan clutch that the ventilation and heat condition is relatively poor, is easy to make the lubricant grease in the sealing drive bearing to receive heat of high temperature to dilute and overflow; Can aggravate drive bearing equally and wear and tear prematurely, until breaking-up.
Because aforementioned structure can satisfy the key property and the basic index of electromagnetic fan clutch, so extensively with chronically used in the prior art, those skilled in the art all do not attempt this structure is improved.
Summary of the invention
The purpose of this invention is to provide a kind of new, simple, the flexible connecting device of the electromagnetic fan clutch of different structure.
Another object of the present invention provides a kind of simple, different structure, durable automobile electromagnetic fan clutch.Be used to solve automobile electromagnetic fan clutch drive bearing excessive wear and the too high problem of temperature when work,, reduce user's maintenance cost to improve the working life of automobile electromagnetic fan clutch.
A further object of the present invention is that a kind of production method of making the flexible connecting device of aforementioned electromagnetic fan clutch is provided.
Flexible connecting device of the present invention; Comprise fan fixed disk and magnet fixed disc; Wherein: circumferentially be provided with the soft magnetism iron hoop in the cast cover of said fan fixed disk; The circumferential end surfaces of said magnet fixed disc is provided with permanent magnet, and said magnet fixed disc is contained in the said cast cover of said fan fixed disk, and said fan fixed disk and said magnet fixed disc are coaxial.
Said soft magnetism iron hoop is a monocycle.
Type of offering rectangular through slot on the said circumferential end surfaces is held said permanent magnet.
Two sidewalls of said type of rectangular through slot bend at opening relatively.
Said magnet fixed disc is provided with radiating fin.
Said magnet fixed disc comprises bearing fixing sleeve, fan blade and is connected annulus.
Said fan blade is for type trapezoidal plate and have the right angle breach.
The angle of the upper-end surface of said fan blade and bearing fixing sleeve be 30 the degree to 70 the degree, the front/rear end of said fan blade is an arc shaped surface.
The electromagnetic fan clutch that comprises said flexible connecting device.
Circumferential far-end in said electromagnetic fan clutch fan fixed disk has air outlet hole, has the air intake through hole at the circumferential near-end of said fan fixed disk.
The production method of flexible connecting device comprises:
A) die casting soft magnetism iron hoop in the cast cover of fan fixed disk;
B) on the circumferential end surfaces of magnet fixed disc, install permanent magnet.
Said step b also comprises:
C) on the circumferential end surfaces of magnet fixed disc, form a type rectangular through slot,
D) form bending at said type of rectangular through slot opening.
Said step b also comprises:
E) on magnet fixed disc, form a type trapezoidal plate, it has the right angle breach.
Flexible connecting device of the present invention; Changed the corresponding position of soft magnet and permanent magnet in fan fixed disk and the magnet fixed disc; Each disk body transmission shaft bears the technical problem that axial tension causes the inside and outside ring eccentric wear when having overcome the electromagnetic fan clutch operating mode; Flexible connecting device of the present invention changes into the axial tension between each drive bearing along the radially equally distributed radial pull of magnet fixed disc, and what make that application of force direction is drive bearing normally receives force direction; The bearing seal of having avoided eccentric wear to cause is not tight, and lubricant grease is excessive to release.
Simultaneously; Flexible connecting device of the present invention makes the more original design of the corresponding position of soft magnet and permanent magnet away from each disk body drive bearing; The heat of high temperature that has delayed the electric convolution generation can be to each drive bearing conduction, for taking the radiating and cooling means that advantage is provided to disk body.
Flexible connecting device of the present invention is provided with radiating fin at fan fixed disk outer wall and inner chamber, is provided with radiating fin in the upper-end surface and the lower end surface of magnet fixed disc; Can effectively produce the position heat radiation of heat to flexible connecting device; Radiating fin is to the stirring of hot air, and hot air is shed from nearby air outlet hole, and the air intake through hole imports the fan fixed disk inner chamber with the cool air that radiating fin stirs in good time; On the path of drive bearing conduction, form heat-radiation belt in heat of high temperature, delay transmission of heat.Utilize the fan blade on the magnet fixed disc, can discharge from the fan fixed disk inner chamber by air rapidly and efficiently, avoid heat accumulation, conduct to drive bearing with the heat of high temperature heating.Make the lubricant grease in the drive bearing can not receive heat of high temperature to dilute and overflow.
The automobile electromagnetic fan clutch that flexible connecting device of the present invention is made; Can effectively increase the service life; Owing to when drive bearing wearing and tearing breaking-up needs maintain and replace, safeguard that the Chang Yin of producer removes and installs inconvenience, usually the electromagnetic fan clutch of integral body scrapped integral replacing; Automobile electromagnetic fan clutch of the present invention has prolonged the working life of automobile electromagnetic fan clutch, has obviously reduced user's maintenance cost.
The production method of flexible connecting device of the present invention has obviously reduced the weight of fan fixed disk and magnet fixed disc, has guaranteed the bulk strength and the precision of fan fixed disk and magnet fixed disc simultaneously, and further makes air velocity increase thus increasing heat radiation effect.
In the inwall of cast cover, unique soft magnetism iron hoop is set, can reduces cast is overlapped integrally-built change, keep rigidity and intensity, the inner chamber stress deformation that the cast cover forms when avoiding the fan fixed disk operating mode.
The class rectangular through slot of on the magnet fixed disc circumferential end surfaces, offering can be simplified the installation steps of permanent magnet, and it is corresponding with the shape of soft magnetism iron hoop to help permanent magnet, avoids the magnetic intensity loss.
Two sidewalls of class rectangular through slot rise with temperature in the relative bending meeting of opening and expand, and can permanent magnet be fixedly secured, and avoid when disk body is heated inequality, and permanent magnet is loosening.
The sharp-pointed flanging that right angle breach on the fan blade forms can compress the air-flow of process, obviously increases the local air flow velocity, improves cooling-down effect.
Below in conjunction with accompanying drawing embodiments of the invention are described further.
Description of drawings
Fig. 1 is the embodiment's of first kind of automobile electromagnetic fan clutch of the present invention sectional view;
Fig. 2 is the plan view of the fan fixed disk of first kind of automobile electromagnetic fan clutch of the present invention;
Fig. 3 be among Fig. 2 A-A to revolved sectional view;
Fig. 4 is the sectional view of the magnet fixed disc of first kind of automobile electromagnetic fan clutch of the present invention;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the front three-dimensional view of the magnet fixed disc of second kind of automobile electromagnetic fan clutch of the present invention;
Fig. 7 is the back three-dimensional view of Fig. 6;
Fig. 8 connects sectional view for the installation of second kind of automobile electromagnetic fan clutch of the present invention;
Fig. 9 is the plan view of the third automobile electromagnetic fan clutch of the present invention embodiment's fan fixed disk;
Figure 10 is the worm's eye view of the third automobile electromagnetic fan clutch of the present invention embodiment's fan fixed disk;
Figure 11 is the A-A direction sectional view of the third automobile electromagnetic fan clutch of the present invention embodiment's fan fixed disk;
Figure 12 is first embodiment's of the magnet fixed disc of the third automobile electromagnetic fan clutch of the present invention worm's eye view;
Figure 13 is first embodiment's of the magnet fixed disc of the third automobile electromagnetic fan clutch of the present invention plan view;
Figure 14 is first embodiment's of the magnet fixed disc of the third automobile electromagnetic fan clutch of the present invention B-B direction sectional view;
Figure 15 is second embodiment's of the magnet fixed disc of the third automobile electromagnetic fan clutch of the present invention axial view;
Figure 16 is second embodiment's of the magnet fixed disc of the third automobile electromagnetic fan clutch of the present invention plan view;
Figure 17 is the generalized section of automobile electromagnetic fan clutch assembly.
Embodiment
Fig. 1-shown in Figure 5, the embodiment of first kind of automobile electromagnetic fan clutch of the present invention comprises that mainly fan fixed disk inner chamber circumference is the magnet fixed disc that the spacer ring cover is connected with; It is in the inner chamber circumferential surface of said fan fixed disk, to be provided with soft magnet 2; Be spacing on said soft magnet and the magnet fixed disc outer round surface and inlay the some block permanent magnets 3 corresponding (Fig. 1, Fig. 4, shown in Figure 5) that are connected with; In near the fan fixed disk that is connected with drive bearing, on the resonator end surface circumference, be the spacing distribution and be connected with 6 strip heat insulation and heat control intake openings 1; In near the fan fixed disk that is provided with soft magnet 2, on the resonator end surface circumference, be the spacing distribution and be connected with 6 strip heat insulation and heat control exhaust vents 9 (Fig. 2, shown in Figure 3).During work; Be distributed on the magnetic field suction that the soft magnet 2 in the some block permanent magnets 3 relative fan fixed disk surface of internal cavity on the magnet fixed disc cylindrical produces; The radial force that acts on thus on the drive bearing is separately cancelled out each other; Realized that the roller or the ball that are equipped with in the drive bearing inner and outer rings rolling rail separately are in normal rolling lubrication, have eliminated the breaking-up (shown in Figure 1) that drive bearing causes lubricant grease to leak because of the eccentric wear wearing and tearing in the existing technology.For timely magnet fixed disc and fan fixed disk are carried out the whirlwind radiating and cooling by the heat of high temperature that the magnetic field electric convolution produces in the work.Can be on the end face of said magnet fixed disc one or both sides, distributing is connected with some radiating fin 10; The present invention distributes to be connected with some radiating fin 10 (Fig. 4, shown in Figure 5) on said magnet fixed disc end faces of both sides; Can also on the corresponding fan fixed disk cylindrical that is provided with soft magnet 2, distribute and be connected with some radiating fin 11 (shown in Figure 1).During work, the adpting flange of transmission shaft of the present invention is done the free sliding running with the fan fixed disk that automobile belt pulley driving transmission shaft is connected through double-row radial ball bearing.In the engine operation water temperature reaches during warm setting value, through temp controller control interior loop 6 electric, adhesive dish 7 drives the magnet fixed disc that connects through single-row radial ball bearing and rotates in the adhesive; Be spacing on the magnet fixed disc cylindrical this moment and inlay the some block permanent magnets 3 that are connected with; The soft magnet 2 that is provided with in the fan fixed disk surface of internal cavity relatively rotates the electric convolution magnetic field suction that produces, and the fan blade (not shown) on the drive fan fixed tray is carried out the middling speed radiating and cooling to the engine operation water temperature.Because distribution is connected with the position of permanent magnet 3 on the position that is provided with soft magnet 2 in the fan fixed disk inner chamber circumferential surface and the magnet fixed disc cylindrical, all away from the position of drive bearing (shown in Figure 1) separately; When the heat of high temperature that produces when the magnetic field electric convolution in the work drives to fan fixed disk and magnet fixed disc; The one, be distribute 6 strip heat insulation and heat control outlet and inlet holes 1,9 being connected with and drive bearing of spacing in the fan fixed disk on the resonator end surface circumference respectively and realize that two-layer deadens hotly, has prevented that most of heat is to the conduction of its bearing (Fig. 1---shown in Figure 3); The 2nd, through the rotation of radiating fin 10 on the magnet fixed disc end face; It is inner to make extraneous cooling air suck the automobile electromagnetic fan clutch through the heat insulation and heat control intake opening on the resonator end surface in the fan fixed disk 1, through heat insulation and heat control exhaust vent 9 with its inner heat of high temperature that produces in time outwards eddy flow discharge and carry out radiating and cooling (Fig. 1---shown in Figure 3); The 3rd, through the rotation of radiating fin 11 on the fan fixed disk cylindrical, the heat of high temperature that is connected with the generation of soft magnet 2 positions in the disk body is carried out the whirlwind radiating and cooling at any time; Reduce the operating temperature of drive bearing separately significantly, guaranteed that the lubricant grease in the drive bearing is not separately overflowed by the high temperature dilution, prevented the drive bearing breaking-up of wearing and tearing prematurely effectively.Improve the working life of automobile electromagnetic fan clutch, reduced user's maintenance cost.When the work water temperature of motor rises to the high temperature values of setting; Temp controller control exterior loop 5 gets electric, and the outer adhesive dish 4 direct drive fan fixed disk of adhesive are done rotation (shown in Figure 1) at full speed and through the fan blade (not shown) that is connected with on the fan fixed disk engine operation water temperature carried out the full speed radiating and cooling.
Fig. 6---shown in Figure 8, the embodiment of second kind of automobile electromagnetic fan clutch of the present invention, this magnet fixed disc that has whirlwind heat radiation fan blade, he is that the outer round surface at the magnet retainer ring distributes and is connected with 18 magnet fixed bodies 01; Being spacing at said magnet retainer ring bore area is connected with 7 whirlwind heat radiation fan blades 02 and links to each other with bearing fixing sleeve 03 outer surface.According to different whirlwind radiating effects, the present invention selects that said to be surface that spacing is connected with whirlwind heat radiation fan blade 02 be skewed (Fig. 6---shown in Figure 8); It can certainly be the vertical (not shown).During work, the present invention and miscellaneous part assembling connect and compose the automobile electromagnetic fan clutch.Groove-like magnet fixed body on the said magnet retainer ring outer round surface is built-in with permanent magnet 05; Said bearing fixing sleeve 03 endoporus is fixed with single-row radial ball bearing and is connected (shown in Figure 8) with transmission shaft; The adpting flange of said transmission shaft links to each other with the automobile belt pulley; Power control line terminal 010 join with temp controller.Work original state, automobile belt pulley drive transmission shaft and do free sliding running (shown in Figure 8) through the fan fixed disk of double-row radial ball bearing connection.In the engine operation water temperature reaches during warm setting value; Get through temp controller control interior loop 08; Adhesive dish 09 drives the magnet fixed disc rotation in the adhesive; 18 block permanent magnets 05 that distribute and be connected with on the magnet retainer ring outer round surface of magnet fixed disc at this moment; The soft magnet 04 that is provided with in the fan fixed disk surface of internal cavity relatively rotates the electric convolution magnetic field suction that produces, and the drive fan fixed tray switches to middling speed rotation (shown in Figure 8) by the free sliding running of original state, drives the fan (not shown) that is connected on the fan fixed disk engine operation water temperature is carried out the middling speed radiating and cooling.When the heat of high temperature that produces when the magnetic field electric convolution in the work conducted to magnet fixed disc and fan fixed disk, said some whirlwind that spacing the is connected with fan blades 02 that dispel the heat that are had both played the be connected driving action of magnet retainer ring with bearing fixing sleeve 03; Be intervals again and stoped the be connected driving action of magnet retainer ring with bearing fixing sleeve 03; Be most of heat of high temperature that intervals stoped the magnet retainer ring again and conduct to conduction bearing (Fig. 6, shown in Figure 8); The air swirl that rotation through whirlwind heat radiation fan blade 02 produces; The cooling air in the external world is sucked the inner heat of high temperature that produces of automobile electromagnetic fan clutch through the heat insulation and heat control intake opening on the fan fixed disk exterior edge face 011; Through outwards eddy flow discharge of a plurality of whirlwind hole 012 (shown in Figure 8) between a plurality of whirlwind hole 012 on the fan fixed disk exterior edge face and its interior edge face and outer adhesive dish 06 end face; In time carry out the whirlwind radiating and cooling; Guaranteed that the drive bearing of magnet fixed disc and fan fixed disk works under normal temperature; Prevented that effectively the lubricant grease in the drive bearing is overflowed by the high temperature dilution, has reduced the too early wearing and tearing of drive bearing separately significantly and has damaged.Improve the working life of automobile electromagnetic fan clutch, reduced user's maintenance cost.When the work water temperature of motor rises to the high temperature values of setting; Temp controller control exterior loop 07; The outer adhesive dish 06 of adhesive directly drives fan fixed disk and does high-speed rotation (shown in Figure 8), through the fan (not shown) that is connected with on the fan fixed disk engine operation water temperature is carried out the high speed radiating and cooling.
Flexible connecting device the 3rd embodiment of electromagnetic fan clutch of the present invention is made up of fan fixed disk and magnet fixed disc.
To shown in Figure 11, fan fixed disk is made up of bearing support 101, annulus connecting body 102 and cast cover 103 like Fig. 9.The outer wall bottom of bearing support 101 is fixedly connected with the inwall of annulus connecting body 102, and the lower end surface circumferential edges of annulus connecting body 102 is fixedly connected with the upper-end surface of cast cover 103, forms the disk body inner chamber of fan fixed disk.In the inwall of cast cover 103, be provided with soft magnetism iron hoop 104, soft magnetism iron hoop and bearing support 101 are coaxial.Position near bearing support 101 is provided with six air intake through holes 105 that run through annulus connecting body 102 upper and lower end faces; Air intake through hole threaded shaft bearing evenly distributes; Position near the cast cover is provided with six air outlet holes 106 that run through annulus connecting body 102 upper and lower end faces, and air outlet hole threaded shaft bearing evenly distributes.Radially be provided with first radiating fin 107 and second radiating fin 108; One end of first radiating fin 107 is vertically connected on bearing support 101 excircles; The other end is connected with the hole wall of air intake through hole 105 away from bearing support 101, and the two ends of second radiating fin 108 are fixedly connected on air outlet hole 106 hole walls in the radial direction.Outer wall bottom at the upper-end surface of annulus connecting body 102 circumferential edges and cast cover 103 also is provided with radiating fin.
In the flexible connecting device of the embodiment of the invention three was made, the production method of its fan fixed disk comprised the steps:
The soft magnetism iron hoop is placed the relevant position of die casting mould;
Aluminum alloy material through the die casting once-through, is formed bearing support, disk body, disk body inner chamber and each radiating fin, and the soft magnetism iron hoop in the disk body inner chamber;
Through the T6 heat treatment mode, the hardness of fan fixed disk and tensile strength are further increased;
Punch process goes out air intake through hole, air outlet hole on disk body.
The fan fixed disk of the flexible connecting device of the embodiment of the invention three simple in structure, cheap for manufacturing cost, production method is simple.Adopt soft magnetism iron plate in the structure of existing technology fan fixed tray, this kind structure materials when producing identical magnetic intensity are more and manufacturing process is loaded down with trivial details and complicated.
Extremely shown in Figure 14 like Figure 12; First kind of magnet fixed disc of the flexible connecting device of the embodiment of the invention three is made up of bearing fixing sleeve 201 and disk body 202; Disk body is fixedly connected on the outer circumferential walls of bearing fixing sleeve, radially axial vertical with bearing fixing sleeve of disk body.At the circumferential edges of disk body, offer 18 equally distributed type of rectangular through slot 203 from the upper-end surface to the lower end surface, two sidewalls of type rectangular through slot 202 bend at class rectangular through slot opening relatively.Class rectangular through slot internal fixation is equipped with and type corresponding permanent magnet 204 of rectangular through slot.The south poles of permanent magnet radially distributes, and alternately arranges in the South Pole and the arctic of each adjacent permanent magnets of same circumferencial direction.Upper and lower end face at disk body radially respectively is provided with equally distributed 27 radiating fin 205 along disk body.
The production method of first kind of magnet fixed disc of the flexible connecting device of the embodiment of the invention three comprises the steps:
Aluminum alloy material through the die casting once-through, is formed disk body, the class rectangular through slot of bearing fixing sleeve and disk body circumferential edges and the radiating fin of disk body upper and lower end face;
Through the T6 heat treatment mode, the hardness of magnet fixed disc and tensile strength are further increased;
Through hydraulic press with permanent magnet type of being pressed into rectangular through slot.
First kind of magnet fixed disc of the flexible connecting device of the embodiment of the invention three is simple in structure, cheap, and production method is simple.Adopt bigger permanent magnetic iron block in the existing technology in the structure of magnet fixed disc, need multistep to install suddenly, this kind structure materials when producing identical magnetic intensity are more and manufacturing process is loaded down with trivial details and complicated.
To shown in Figure 16, second kind of magnet fixed disc of the flexible connecting device of the embodiment of the invention three is made up of bearing fixing sleeve 221, fan blade 222, connection annulus 223 and clamping rings 224 like Figure 15.Be fixedly connected three connecting base 221a on the outer circumferential walls of bearing fixing sleeve 221, connecting base 221a evenly distributes around the outer circumferential walls of bearing fixing sleeve 221.Connect annulus 223 and bearing fixing sleeve 221 coaxial lines; At the external peripheral surface that connects annulus 223; Offer 18 equally distributed type of rectangular through slot 223a from the upper-end surface to the lower end surface, two sidewalls of type rectangular through slot 223a bend at class rectangular through slot opening relatively.The ear end face that connects annulus 223 is fixedly connected the front-end face of clamping rings 224, and the internal diameter of clamping rings 224 equals to connect the internal diameter of annulus 223, and the external diameter of clamping rings 224 equals to connect the external diameter of annulus 223.Class rectangular through slot internal fixation is equipped with and type corresponding permanent magnet 225 of rectangular through slot.The south poles of permanent magnet radially distributes, and alternately arranges in the South Pole and the arctic of each adjacent permanent magnets of same circumferencial direction.
The production method of second kind of magnet fixed disc of the flexible connecting device of the embodiment of the invention three comprises the steps:
Aluminum alloy material through the die casting once-through, is formed bearing fixing sleeve, fan blade, connection annulus and clamping rings, and the class rectangular through slot that connects the annulus outer circumferential edges;
Through the T6 heat treatment mode, the hardness of magnet fixed disc and tensile strength are further increased;
Through hydraulic press with permanent magnet type of being pressed into rectangular through slot.
Second kind of magnet fixed disc of the flexible connecting device of the embodiment of the invention three is simple in structure, cheap, and production method is simple.Adopt bigger permanent magnetic iron block in the existing technology in the structure of magnet fixed disc, need multistep to install suddenly, this kind structure materials when producing identical magnetic intensity are more and manufacturing process is loaded down with trivial details and complicated.
The force direction that receives of magnet fixed disc is the synthetic axially loaded of disk body end face circumference each point in the prior art; Need to guarantee disk body rigidity; The force direction that receives of magnet fixed disc is radially evenly stressed along disk body in the present invention, and the rigidity requirement reduction to disk body can be provided with fan blade on disk body.Right angle breach 222a on the fan blade makes air when flowing through the fan blade edge, produce differential, air velocity is increased, further thus increasing heat radiation effect.The fan blade angle of 30 degree, 45 degree, 60 degree can make air velocity keep best, thus increasing heat radiation effect too.
Shown in figure 17; The bearing support 101 of fan fixed disk 521 is rotationally connected through double-row radial ball bearing 501 and transmission shaft 511; The bearing fixing sleeve 201 of magnet fixed disc 522 is rotationally connected through single-row radial ball bearing 502 and transmission shaft 511, forms the flexible connecting device of electromagnetic fan clutch.
Interior adhesive dish 504 is fixedly connected through spring sheet with magnet fixed disc, and outer adhesive dish 506 is fixedly connected through spring sheet with fan fixed disk, and drive plate is fixedly connected with transmission shaft.
During the work of automobile electromagnetic fan clutch; The adpting flange of transmission shaft 511 links to each other with the automobile belt pulley; The power control line terminal link to each other with temp controller; Work original state, automobile belt pulley drive transmission shaft 511 and rotate, and the fan fixed disk 521 that connects transmission shaft through double-row radial ball bearing 501 is done the free sliding rotation with the magnet fixed disc 522 that is connected transmission shaft through single-row radial ball bearing 502;
In the engine operation water temperature reaches during warm setting value, through temp controller control interior loop 503 electric, adhesive dish 504 in the drive plate adhesive drives the magnet fixed disc 522 that connects through single-row radial ball bearing 502 and rotates; Equally distributed permanent magnet on this moment magnet fixed disc external peripheral surface; The soft magnet that is provided with in the fan fixed disk inner chamber circumferential surface relatively rotates; Produce electric convolution magnetic field suction; The drive fan fixed tray switches to the middling speed rotation by being free to slide to rotate, and through the fans that is connected on the fan fixed disk engine operation water temperature is carried out the middling speed radiating and cooling.
Be evenly distributed on the permanent magnet on the magnet fixed disc external peripheral surface; The radial magnetic field suction that soft magnet in the relative fan fixed disk inner chamber circumferential surface produces; Avoided axial force; The radial force that acts on thus on the drive bearing is separately cancelled out each other, realized that the roller or the ball that are equipped with in the drive bearing inner and outer rings rolling rail separately are in normal rolling lubrication, the breaking-up of having avoided drive bearing to cause lubricant grease to leak because of the eccentric wear wearing and tearing.
When the work water temperature of motor rises to the high temperature values of setting; Temp controller control exterior loop 505; The outer adhesive dish 506 of drive plate adhesive directly drives fan fixed disk 521 and does rotation at full speed, through the fans that is connected with on the fan fixed disk engine operation water temperature is carried out the full speed radiating and cooling.
Utilize the process of the automobile electromagnetic fan clutch radiating and cooling that first kind of magnet fixed disc of present embodiment three constitute to be: in the engine operation water temperature reaches during warm setting value; Interior loop 503; Adhesive dish 504 drives the magnet fixed disc rotation in the drive plate adhesive; The relative soft magnet of permanent magnet rotates and produces electric convolution magnetic field suction; The drive fan fixed tray switches to middling speed and rotates, and the heat of high temperature that the magnetic field electric convolution produces is conducted to drive bearing along disk body, and first radiating fin 107 on the fan fixed disk outer surface and second radiating fin 108 reduce the disk body temperature with the heat that the soft magnet generation is distributed in the radiating fin rotation on other disk bodies; Radiating fin 205 rotations on the magnet fixed disc upper and lower end face; To discharge from air outlet hole 106 near the expanded by heating air of permanent magnet; Take the part heat out of and reduce the disk body temperature; Through first radiating fin 107 cooling air is replenished entering fan fixed disk inner chamber by air intake through hole 105, reduce the disk body temperature, stop heat to conduct to drive bearing.
Utilize the process of the automobile electromagnetic fan clutch radiating and cooling that second kind of magnet fixed disc of present embodiment three constitute to be: fan blade 222 is with the magnet fixed disc fast rotational; Produce negative pressure,, take the part heat out of and reduce the disk body temperature except discharging from air outlet hole 106 near the expanded by heating air of permanent magnet; Through first radiating fin 107 cooling air is replenished entering fan fixed disk inner chamber by air intake through hole 105; Reduce the disk body temperature, stop heat beyond the effect of drive bearing conduction, can also make the large and small adhesive dish of part air through the magnet fixed disc rear portion; Discharge fast in the slit of large and small shell fragment, further strengthens radiating effect.
Carry out related experiment according to flexible connecting device of the present invention, compare with the electromagnetic fan clutch of original structure, laboratory data and test data are as shown in the table:
| Permanent magnet quantity | Manufacture cost | Weight change | Cost of material | The soft drive performance | This clutch working |
|
| 10 | Rise 0.4% | Constant | Rise 2.2% | Constant | Prolong 3.2 times | |
| 14 | Rise 1.4% | Rise 1.5% | Rise 4% | Rise 7% | Prolong 3.3 times | |
| 16 | |
Rise 2.5% | Rise 6% | Rise 8.2% | Prolong 3.4 times | |
| 18 | Rise 2.6% | Rise 3.5% | Rise 8% | Rise 9.5% | Prolong 3.5 times | |
| 20 | Rise 3.3% | Rise 4.6 | Rise | 10% | Rise 10.1% | Prolong 3.1 times |
| 22 | Rise 3.9% | Rise 5.7% | Rise 12% | Rise 10.7% | Prolong 2.8 times |
Carry out related experiment according to flexible connecting device of the present invention, compare with the electromagnetic fan clutch of original structure, laboratory data and test data are as shown in the table:
| Fan fixed disk intake opening quantity | Fan fixed disk exhaust vent quantity | Fan fixed disk disk body intensity | With original flexible connecting device radiating effect contrast |
| 4 | 4 | Descend 3.6% | Rise 13% |
| 6 | 6 | Descend 5.1% | Rise 19% |
| 8 | 8 | Descend 6.8% | Rise 22% |
Carry out related experiment according to flexible connecting device of the present invention, compare with the electromagnetic fan clutch of original structure, laboratory data and test data are as shown in the table:
| Magnet fixed disc fan blade quantity | Magnet fixed disc disk body intensity | With original flexible connecting device radiating |
| 5 | Descend 5.4% | Rise 31.4% |
| 6 | Descend 5% | Rise 32.7% |
| 7 | Descend 4.3% | Rise 33.7% |
| 8 | Descend 3.7% | Rise 34.1% |
| 9 | Descend 3.2% | Rise 34.6% |
Carry out related experiment according to flexible connecting device of the present invention, obvious influence also can be caused to radiating effect in the angle of inclination of fan blade 222, and laboratory data and test data are as shown in the table:
| The fan blade angle of inclination | Magnet fixed disc disk body intensity | Radiating effect contrast during with identical fan blade quantity zero degree |
| 30° | Descend 11% | Rise 17% |
| 40° | Descend 15% | Rise 19.7% |
| 50° | Descend 19% | Rise 18.7% |
| 60° | Descend 22% | Rise 19.2% |
| 70° | Descend 26% | Rise 16.6% |
Carry out related experiment according to flexible connecting device of the present invention, when the front/rear end of fan blade 222 is cambered surface, heat radiation had 3.2%～6.2% good effect.
Above-described embodiment describes preferred implementation of the present invention; Be not that scope of the present invention is limited; Design under the prerequisite of spirit not breaking away from the present invention; Various distortion and improvement that those of ordinary skills make technological scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (13)
1. flexible connecting device; Comprise fan fixed disk and magnet fixed disc; It is characterized in that: circumferentially be provided with soft magnetism iron hoop (104) in the cast cover (103) of said fan fixed disk, the circumferential end surfaces of said magnet fixed disc is provided with permanent magnet (204,225); Said magnet fixed disc is contained in the said cast cover (103) of said fan fixed disk, and said fan fixed disk and said magnet fixed disc are coaxial.
2. flexible connecting device according to claim 1 is characterized in that: said soft magnetism iron hoop (104) is a monocycle.
3. flexible connecting device according to claim 2 is characterized in that: and type of offering rectangular through slot on the said circumferential end surfaces (203,223a), hold said permanent magnet.
4. flexible connecting device according to claim 3 is characterized in that: (203, two sidewalls 223a) bend at opening said type of rectangular through slot relatively.
5. according to the described flexible connecting device of one of claim 1 to 4, it is characterized in that: said magnet fixed disc is provided with radiating fin (205).
6. according to the described flexible connecting device of one of claim 1 to 4, it is characterized in that: said magnet fixed disc comprises bearing fixing sleeve (221), fan blade (222) and is connected annulus (223).
7. flexible connecting device according to claim 6 is characterized in that: said fan blade (222) is for type trapezoidal plate and have right angle breach (222a).
8. flexible connecting device according to claim 7 is characterized in that: the angle of the upper-end surface of said fan blade (222) and bearing fixing sleeve (221) be 30 degree to 70 degree, the front/rear end of said fan blade (222) is an arc shaped surface.
9. the electromagnetic fan clutch that comprises the arbitrary described flexible connecting device of claim 1 to 8.
10. electromagnetic fan clutch according to claim 9 is characterized in that: the circumferential far-end in said fan fixed disk has air outlet hole (106), has air intake through hole (105) at the circumferential near-end of said fan fixed disk.
11. the production method of flexible connecting device comprises:
A) die casting soft magnetism iron hoop in the cast cover (103) of fan fixed disk;
B) on the circumferential end surfaces of magnet fixed disc, install permanent magnet.
12. the flexible connecting device production method according to claim 11 is stated is characterized in that: said step b also comprises:
C) on the circumferential end surfaces of magnet fixed disc, form a type rectangular through slot,
D) form bending at said type of rectangular through slot opening.
13. the flexible connecting device production method according to claim 12 is stated is characterized in that: said step b also comprises:
E) on magnet fixed disc, form a type trapezoidal plate, it has right angle breach (222a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110404225.XA CN102494050B (en) | 2010-12-07 | 2011-12-07 | Flexible connection device, and manufacturing method thereof and automobile electromagnetic fan clutch |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010588608.2 | 2010-12-07 | ||
| CN 201010588608 CN102003266A (en) | 2010-12-07 | 2010-12-07 | Vehicle electromagnetic fan clutch |
| CN201010621450.4 | 2010-12-27 | ||
| CN 201010621450 CN102094911A (en) | 2010-12-27 | 2010-12-27 | Magnet fixing disk with cyclone heat dissipation fan blades |
| CN201110404225.XA CN102494050B (en) | 2010-12-07 | 2011-12-07 | Flexible connection device, and manufacturing method thereof and automobile electromagnetic fan clutch |
Publications (2)
| Publication Number | Publication Date |
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| CN102494050A true CN102494050A (en) | 2012-06-13 |
| CN102494050B CN102494050B (en) | 2014-11-05 |
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| CN201110404225.XA Active CN102494050B (en) | 2010-12-07 | 2011-12-07 | Flexible connection device, and manufacturing method thereof and automobile electromagnetic fan clutch |
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| CN105041895A (en) * | 2014-04-12 | 2015-11-11 | 博格华纳公司 | Overmolded flux ring |
| CN105221600A (en) * | 2013-03-27 | 2016-01-06 | 龙口中宇热管理系统科技有限公司 | Low-carbon economic electromagnetic fan clutch |
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|---|---|
| CN102494050B (en) | 2014-11-05 |
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