CN205490058U - Four groove generators - Google Patents

Abstract

The utility model discloses a four groove generators, including stator assembly, rotor assembly, end cover assembly, rectifier assembly, adjuster assembly, shroud assembly, preceding support bearing, back support bearing, belt pulley isotructure. The utility model provides a four groove generators has that structure is more perfect, the function is more comprehensive, longer and so on a great deal of technological advantages of poor stronger, life -span of structural stability and reliability.

Description

A kind of four groove electromotors

Technical field

This utility model relates to electromotor equipment technology field, particularly relates to a kind of four groove generatings Machine.

Background technology

It is known that automobile current generator is the main power source of automobile, its function is at electromotor During normal operation, power to electrical equipment, charge to accumulator simultaneously.

Orthodox car electromotor generally comprises housing, is provided with axis in housing surrounds cavity, Be arranged with fore bearing on axis successively, generator unit, rear bearing are electrically connected with generator unit The collector ring connect and brush, brush connects through the breach on rear bearing block sidewall with collector ring Get an electric shock and connect, the rear side of housing is additionally provided with guard shield.

But, above-mentioned traditional automobile current generator structure comparison is simple, so traditional above-mentioned vapour Often there is simple structure (such as: lack bearing radially position limiting structure etc.), merit in car electromotor Can less, the technological deficiency such as structural stability and poor reliability, life-span be short.

Utility model content

The purpose of this utility model is to provide a kind of four groove electromotors, to solve the problems referred to above.

In order to achieve the above object, the technical solution of the utility model is achieved in that

This practicality provides a kind of four groove electromotors, including field frame assembly, rotor assembly, End cap assembly, commutator assembly, REG Regulator Assembly, cover cap assembly, front support bearing, after Spring bearing, belt pulley, bearing sheath；

Position relationship, layout and connected mode between above-mentioned concrete structure are as follows:

Described field frame assembly includes stator core and stator winding, slot insulation, slot wedge, rivet； Wherein, described stator core is built up by the stalloy of inner ring trough of belt, leading of described stator winding Line just embeds in the iron core slot of band slot insulation；Described stator winding has three-phase, specifically includes U phase stator winding, V phase stator winding, W phase stator winding, three-phase windings uses triangle Shape connection, winding produces three-phase alternating current；

Described rotor assembly include pawl pole, yoke, magnetic field winding, collector ring, armature spindle, Adjusting sleeve, front and back fan blade；Wherein, described armature spindle press-fits two pawl poles, two institutes Stating pawl pole and be respectively arranged with six claw shape magnetic poles, the cavity of described pawl pole is built with described magnetic field winding With described yoke；Described collector ring is made up of two copper rings insulated from each other, and collector ring press-fits Insulating on armature spindle and with axle, two collector rings two ends with magnetic field winding respectively are connected；

Described commutator assembly is used for the three-phase alternating current of stator winding is become unidirectional current,

Described end cap assembly specifically includes Driving terminal, brush cover；

Described cover cap assembly is arranged on the rear end of described four groove electromotors；

Described front support bearing and described rear support bearing are for turning in described rotor assembly Sub-axle is supported；

Wherein, for removably connecting between described belt pulley and described rotor assembly；Described skin Belt wheel is four groove belt pulleys；Described bearing sheath is the most spacing for carrying out rear support bearing； Described bearing sheath is specially engineering plastic bearing sheath.

Preferably, can embodiment as one；Described Driving terminal is for fixing described turn Sub-assembly, described field frame assembly, described commutator assembly and described REG Regulator Assembly；Described Brush cover is used for fixed brush.(described brush cover prevents dust for fixed brush insulation The thing entered.)

Preferably, can embodiment as one；The front portion of described front support bearing also sets up There is bearing baffle.

Preferably, can embodiment as one；Described bearing baffle is specially metal baffle, The outer surface of described bearing baffle is electroplate with trivalent environmental protection indigo plant white zine layer.

Preferably, can embodiment as one；The rear end of described rear support bearing also sets up There is bearing sheath.

Preferably, can embodiment as one；Described bearing sheath is specially PBTP work Engineering plastics bearing sheath or PPS engineering plastic bearing sheath.

Preferably, can embodiment as one；Described rotor assembly and described belt pulley it Between by nuts and washers realize connect.

Preferably, can embodiment as one；Described packing ring is specially spring washer.

It should be noted that above-mentioned packing ring is preferably used the packing ring into GB/T859-16 model, I.e. single coil spring lock washer light type.

Preferably, can embodiment as one；Described cover cap assembly is plastic structural part.

Preferably, can embodiment as one；Described cover cap assembly is specially PA6 nylon Any one in engineering plastic materials and parts, ABS moulding, PPS moulding or PEEK moulding Kind.

It should be noted that engineering plastics are can to implement as structural material this utility model The structural material of the housing assembly in example electromotor, engineering plastics have good mechanical performance and Dimensional stability, remains to keep its premium properties under high and low temperature, can tie as engineering The plastics of component.

Engineering plastics include Merlon (Polycarbonate, PC), polyamide (nylon, Polyamide, PA), polyformaldehyde (Polyacetal, Polyoxy Methylene, POM), Degeneration polyphenylene oxide (Poly Phenylene Oxide, degeneration PPE), polyester (PETP, PBTP), Polyphenylene sulfide (Polyphenylene Sulfide, PPS), poly-aryl ester etc..Hot strength is equal More than 50MPa, resistance to impact more than 50J/m2, the modulus of elasticity in static bending at 24000kg/cm2, Load deflection temperature is more than 100 DEG C, and its hardness, anti-impact force, ageing resistance are excellent.Wherein, As the most preferred scheme of this utility model embodiment be ABS moulding, PPS moulding or PEEK moulding.PEEK is the abbreviation of Polyetheretherketone, and Chinese name is poly- Ether ether ketone resin, is a kind of high-end special engineering plastics, has prominent high intensity feature, The most also there is the features such as resistance to compression, resistance to irradiation, stable, the hydrolysis of insulating properties.(ABS, Acrylonitrile Butadiene Styrene plastic) plastics (i.e. acrylonitrile-butadiene-benzene second Alkene plastics) relatively above two material cost is lower, and cost performance is higher.Above-mentioned affix one's seal Assembly is widely used in the affixing one's seal in assembly structure of automobile current generator.

Compared with prior art, the advantage of this utility model embodiment is:

The one four groove electromotor that this utility model provides, it is mainly by field frame assembly, rotor Assembly, end cap assembly, commutator assembly, REG Regulator Assembly, cover cap assembly, front support axle Hold, rear support bearing, belt pulley etc. structure forms；

Described field frame assembly includes stator core and stator winding, slot insulation, slot wedge, rivet； Wherein, described stator core is built up by the stalloy of inner ring trough of belt, leading of described stator winding Line just embeds in the iron core slot of band slot insulation；Described stator winding has three-phase, specifically includes U phase stator winding, V phase stator winding, W phase stator winding, three-phase windings uses triangle Shape connection, winding produces three-phase alternating current；

Described rotor assembly include pawl pole, yoke, magnetic field winding, collector ring, armature spindle, Adjusting sleeve, front and back fan blade；Wherein, described armature spindle press-fits two pawl poles, two institutes Stating pawl pole and be respectively arranged with six claw shape magnetic poles, the cavity of described pawl pole is built with described magnetic field winding With described yoke；Described collector ring is made up of two copper rings insulated from each other, and collector ring press-fits Insulating on armature spindle and with axle, two collector rings two ends with magnetic field winding respectively are connected；

Described commutator assembly is used for the three-phase alternating current of stator winding is become unidirectional current,

Described end cap assembly specifically includes Driving terminal, brush cover；

Described cover cap assembly is arranged on the rear end of described four groove electromotors；

Described front support bearing and described rear support bearing are for turning in described rotor assembly Sub-axle is supported；Wherein, for detachably to connect between described belt pulley and described rotor assembly Connect；Described belt pulley is four groove belt pulleys；Described bearing sheath is specially engineering plastic bearing Sheath.

It will be apparent that this utility model provide four groove electromotors, structure structure more perfect, Function is more comprehensive, structural stability and poor reliability is higher, the life-span is longer, and also has Body has suitability superior technique advantage；Meanwhile, bearing is carried out radially by bearing sheath Spacing, it is ensured that the more preferable stability of electromotor (notes conventional electric generators structure in background technology In be provided without bearing sheath structure design)；Bearing sheath have employed engineering plastic bearing and protects The structure structure of set, its structural stability being obviously improved four groove electromotors and service life.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model detailed description of the invention or skill of the prior art Art scheme, below by detailed description of the invention or description of the prior art required use attached Figure is briefly described, it should be apparent that, the accompanying drawing in describing below is of the present utility model Some embodiments, for those of ordinary skill in the art, are not paying creative labor On the premise of Dong, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

The overall installation diagram of the four groove electromotors that Fig. 1 provides for this utility model embodiment；

The overall explosive view of the four groove electromotors that Fig. 2 provides for this utility model embodiment；

Fig. 3 shows for the field frame assembly structure of the four groove electromotors that this utility model embodiment provides It is intended to；

The rotor assembly of the four groove electromotors that Fig. 4 provides for this utility model embodiment quick-fried Fried figure；

The assembling of the rotor assembly of the four groove electromotors that Fig. 5 provides for this utility model embodiment Figure；

The commutator assembly of the four groove electromotors that Fig. 6 provides for this utility model embodiment quick-fried Fried figure；

The dress of the commutator assembly of the four groove electromotors that Fig. 7 provides for this utility model embodiment Figure；

The structure of the Driving terminal of the four groove electromotors that Fig. 8 provides for this utility model embodiment Schematic diagram；

The structure of the brush cover of the four groove electromotors that Fig. 9 provides for this utility model embodiment Schematic diagram.

Description of reference numerals:

Field frame assembly 1；Stator core 11；Stator winding 12；Slot insulation 13；Slot wedge 14； Rivet 15；

Rotor assembly 2；Pawl pole 21；Yoke 22；Magnetic field winding 23；Collector ring 24；Turn Sub-axle 25；Adjusting sleeve 26；Front fan blade 27；Rear fan blade 28；

End cap assembly 3；Driving terminal 31；Brush cover 32；

Commutator assembly 4；Positive plate 41；Negative plate 42；Positive pole pipe 43；Cathode tube 44； Patch bay 45；Insulation board 46；Screw rod 47；

REG Regulator Assembly 5；

Cover cap assembly 6；

Front support bearing 7；

Rear support bearing 8；

Belt pulley 9；

Bearing baffle 91；

Bearing sheath 92；

Nut 93；

Packing ring 94.

Detailed description of the invention

Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely retouched State, it is clear that described embodiment is a part of embodiment of this utility model rather than complete The embodiment in portion.Based on the embodiment in this utility model, those of ordinary skill in the art exist Do not make the every other embodiment obtained under creative work premise, broadly fall into this reality By novel protected scope.

In description of the present utility model, it should be noted that term " " center ", " on ", The orientation of the instruction such as D score, "left", "right", " vertically ", " level ", " interior ", " outward " Or position relationship is based on orientation shown in the drawings or position relationship, it is for only for ease of description This utility model and simplification describe rather than indicate or imply that the device of indication or element are necessary There is specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this The restriction of utility model.Additionally, term " first ", " second ", " the 3rd " are only used for retouching State purpose, and it is not intended that indicate or hint relative importance.

In description of the present utility model, it should be noted that unless otherwise clear and definite regulation And restriction, term " is installed ", " being connected ", " connection " should be interpreted broadly, such as, and can To be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can be machinery Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to by between intermediary Connect connected, can be the connection of two element internals.For those of ordinary skill in the art For, above-mentioned term concrete meaning in this utility model can be understood with concrete condition.

Below by specific embodiment and combine accompanying drawing this utility model is done further Describe in detail.

Seeing Fig. 1, the one four groove electromotor that this utility model embodiment provides, including fixed Sub-assembly 1, rotor assembly 2, end cap assembly 3, commutator assembly 4, REG Regulator Assembly 5, Cover cap assembly 6, front support bearing 7, rear support bearing 8, belt pulley 9 and bearing sheath；

Position relationship, layout and connected mode between above-mentioned concrete structure are as follows:

Described field frame assembly 1 include stator core 11 and stator winding 12, slot insulation 13, Slot wedge 14, rivet 15；Wherein, described stator core 11 is by the silicon steel sheet stack of inner ring trough of belt Becoming, the wire of described stator winding 12 just embeds in the iron core slot of band slot insulation；Described fixed Sub-winding 12 has three-phase, specifically includes U phase stator winding, V phase stator winding, W phase Stator winding, three-phase windings uses delta connection, and winding produces three-phase alternating current；

Described rotor assembly 2 includes pawl pole 21, yoke 22, magnetic field winding 23, collector ring 24, armature spindle 25, adjusting sleeve 26, front and back fan blade (the most front fan blade 27 and rear fan blade 28)； Wherein, described armature spindle 25 press-fiting two pawl poles 21, two described pawl poles 21 are respectively arranged with Six claw shape magnetic poles, the cavity of described pawl pole is built with described magnetic field winding 23 and described magnetic Yoke 22；Described collector ring 24 is made up of two copper rings insulated from each other, and collector ring is fitted in Insulate on armature spindle and with axle, two collector rings 24 respectively with the two ends phase of magnetic field winding 23 Even；

Described commutator assembly 4 is used for the three-phase alternating current of stator winding is become unidirectional current,

Described end cap assembly 3 specifically includes Driving terminal 31, brush cover 32；

Described cover cap assembly 6 is arranged on the rear end of described four groove electromotors；

Described front support bearing 7 and described rear support bearing 8 are in described rotor assembly Armature spindle be supported；

Wherein, for removably connecting between described belt pulley 9 and described rotor assembly 2；Institute Stating belt pulley 9 is four groove belt pulleys；Described bearing sheath is for carrying out footpath to rear support bearing To spacing；Described bearing sheath is specially engineering plastic bearing sheath.

It will be apparent that this utility model provide four groove electromotors, structure structure more perfect, Function is more comprehensive, structural stability and poor reliability is higher, the life-span is longer and the most concrete There is suitability superior technique advantage.

Concrete structure and tool to the four groove electromotors that this utility model embodiment provides below Body technique effect is done and is described in detail:

This utility model embodiment is suitable for a vapour Audi JFZ1951 generator techniques platform, skill Art upgrading, structure are changed and expand out trendy electromotor.By QC/T729-2005, " automobile is used Alternating current generator technical conditions ", meet electric characteristic test standard QC/T424-1999 pin Engine loading and a new electromotor of technology requirement design to south vapour IVECO vehicle, And it is suitable for Nanjing IVECO engine technical requirements requirement simultaneously.

This its structure of IVECO alternating current generator and outward appearance and applicable vehicle have originality with only One property.

One, its structure is 12 Lundell three-phase synchronous alternators, uses full-wave bridge whole Stream output unidirectional current, uses the built-in type of cooling of double fan, the integrated electricity of the built-in thick film of electromotor Road actuator, volume are little, pressure regulating performance is reliable and stable, it is ensured that output voltage substantially constant. Electromotor is one wire system, minus earth, on the engine continuous rating duty, and and car Upper accumulator parallel operation, provides electric energy to full vehicle device and charges a battery.

Its critical piece: by field frame assembly, rotor assembly, Driving terminal, brush cover, Commutator assembly, REG Regulator Assembly, cover cap assembly, front support bearing, rear support bearing, The parts compositions such as belt pulley.Electromotor is total as shown in Figure 1 and Figure 2:

Key components:

(1), field frame assembly:

The function of field frame assembly 1 is to produce three-phase alternating current stator by stator core 11 and stator Winding 12, slot insulation 13, slot wedge 14, rivet 15 form.Referring specifically to Fig. 3, Fig. 3 It it is field frame assembly structural representation in this utility model embodiment.

Stator core is built up by the stalloy of inner ring trough of belt, and the wire of stator winding just embeds With in the iron core slot of slot insulation.Stator winding have three-phase (specifically include U phase stator winding, V phase stator winding, W phase stator winding), three-phase windings uses delta connection, winding Produce three-phase alternating current.

Field frame assembly implementation condition: just must being allowed to by necessarily requirement coiling of three-phase windings Frequency is identical, amplitude is equal, the three-phase electromotive force of phase place mutual deviation 120 ° in acquisition.1, each Distance between two effective edges of coil should be equal with the space length that a magnetic pole occupies. 2, the distance between every phase winding adjacent windings initial line should be equal with the distance that a pair magnetic pole occupies Or one-tenth multiple.3, the initial line of three-phase windings should spaced 2 π+120o electrical angles；

(2), the function of rotor assembly rotor is to produce rotating excitation field.

Rotor assembly 2 by pawl pole 21, yoke 22, magnetic field winding 23, collector ring 24, turn Sub-axle 25, adjusting sleeve 26, front fan blade 27, rear fan blade 28 composition is shown in Fig. 4 and Fig. 5； It is the quick-fried of this utility model embodiment rotor assembly referring specifically to Fig. 4 and Fig. 5, Fig. 4 Fried figure；Fig. 5 is to be the installation diagram of this utility model embodiment rotor assembly.

Wherein, armature spindle press-fiting two pawl poles, two pawl poles are respectively arranged with six claw shape magnetic Pole, pawl pole cavity is built with magnetic field winding (rotor coil) and yoke.Collector ring by two that The copper ring composition of this insulation, collector ring is fitted on armature spindle and insulate with axle, two current collections Ring two ends with magnetic field winding respectively are connected.

When two collector rings are passed through unidirectional current (passing through brush), magnetic field winding just there is electric current lead to Crossing, and produce axial magnetic flux, make one piece, pawl pole be geomagnetic into N pole, another block is geomagnetic into S pole, thus form six to interlaced magnetic pole.When the rotor is turning, it is the formation of rotation The magnetic field turned.The magnetic circuit of alternating current generator is: yoke → N pole → and between rotor and stator Air gap → S pole → the yoke of air gap → stator → between stator and rotor.

(3), commutator assembly (parameter 6-50A avalanche diode, delta connection support)；

Relevant commutator assembly 4 specifically by positive plate 41, negative plate 42, positive pole pipe 43, The structure compositions such as cathode tube 44, patch bay 45, insulation board 46, screw rod 47；Alternative electric generation The effect of machine commutator is that the three-phase alternating current of stator winding is become unidirectional current, 6 pipe exchanges The commutator of electromotor is formed three-phase full-wave bridge rectifier electricity by 6 silicon rectifier diodes Road, 6 rectifier tubes are fitted on positive plate 41, negative plate 42 respectively.

The installation of rectifier tube: be arranged on by positive pole pipe 43 on one block of aluminum heat sink, is just being referred to as Cowling panel；Cathode tube 44 is installed on another block aluminum heat sink, referred to as negative rectifier plate, also Available generator rear cover replaces negative rectifier plate.It is this referring specifically to Fig. 6 and Fig. 7, Fig. 6 The explosive view of commutator assembly in utility model embodiment；Fig. 7 is for being this utility model enforcement The installation diagram of commutator assembly in example.

(4), end cap assembly:

Above-mentioned end cap assembly typically divides two parts (drive end bearing bracket and rear end cap), and drive end bearing bracket is because of close Generator drive end is also known as Driving terminal, and it uses end cap, fore bearing, bearing plate washer, countersunk head Screw forms, and plays fixed rotor assembly, field frame assembly, commutator and the work of governor assembly With.End cap typically selection aluminum alloy materials casts, and one is can effectively to prevent leakage field, and two It it is aluminium alloy perfect heat-dissipating.Structure such as figure: Fig. 8 is to drive in this utility model embodiment The structural representation of end cap；

Equipped with brush assembly of electric on rear end cap, the tune being made up of brush, brush carrier and brush spring Joint device, also known as brush cover.

The effect of brush is that by collector ring, power supply is introduced magnetic field winding, and brush cover is by adjusting The whole series, bonnet, bearing sheath composition such as figure: Fig. 9 is this utility model embodiment center brush The structural representation of end cap；

The main specification of electromotor:

Nominal voltage: 12V；Rated voltage: 14V；

Rated current: 120A；Regulation voltage: 14.5 ± 0.25V (n=6000r/min I=9A)；

Generator operation performance meets techniques below requirement；

Six, actuator load characteristic, rotary speed property meet techniques below requirement；

Below other the concrete technology of the four groove electromotors that this utility model embodiment provides are done Once describe in detail:

In concrete structure, the front portion of described front support bearing is additionally provided with bearing baffle 91. Preferably, can embodiment as one；Described bearing baffle 91 is specially metal baffle, The outer surface of described bearing baffle 91 is electroplate with trivalent environmental protection indigo plant white zine layer；

It should be noted that above-mentioned bearing plate washer effect is: prevent bearing from moving axially, control Bearing axial location processed, fixed rotor assembly axial location after the tightest belt pulley.

Preferably, can embodiment as one；The rear end of described rear support bearing 8 also sets It is equipped with bearing sheath 92.

Preferably, can embodiment as one；Described bearing sheath 92 is specially PBTP Engineering plastic bearing sheath or PPS engineering plastic bearing sheath.

It should be noted that about the effect of bearing sheath: play the bearing of the little bearing in rear end Seat effect；Can not loosen and rotate against between bearing and bearing sheath, only exist because of rotor By flatulence of heat type factor, sliding axially, rear bearing is fixing is only to control radial position, is axially floating Move.

Preferably, can embodiment as one；Described rotor assembly 2 and described belt pulley Realize connecting by nut 93 and packing ring 94 between 9.

Preferably, can embodiment as one；Described packing ring 94 is specially spring washer.

It should be noted that above-mentioned packing ring is preferably used the packing ring into GB/T859-16 model, I.e. single coil spring lock washer light type.

Preferably, can embodiment as one；Described cover cap assembly 6 is plastic structural part.

Preferably, can embodiment as one；Described cover cap assembly 6 is specially PA6 Buddhist nun Any in dragon engineering plastic materials and parts, ABS moulding, PPS moulding or PEEK moulding A kind of.

It should be noted that engineering plastics are can to implement as structural material this utility model The structural material of the housing assembly in example electromotor, engineering plastics have good mechanical performance and Dimensional stability, remains to keep its premium properties under high and low temperature, can tie as engineering The plastics of component.

Engineering plastics include Merlon (Polycarbonate, PC), polyamide (nylon, Polyamide, PA), polyformaldehyde (Polyacetal, Polyoxy Methylene, POM), Degeneration polyphenylene oxide (Poly Phenylene Oxide, degeneration PPE), polyester (PETP, PBTP), Polyphenylene sulfide (Polyphenylene Sulfide, PPS), poly-aryl ester etc..Hot strength is equal More than 50MPa, resistance to impact more than 50J/m2, the modulus of elasticity in static bending at 24000kg/cm2, Load deflection temperature is more than 100 DEG C, and its hardness, anti-impact force, ageing resistance are excellent.Wherein, As the most preferred scheme of this utility model embodiment be ABS moulding, PPS moulding or PEEK moulding.PEEK is the abbreviation of Polyetheretherketone, and Chinese name is poly- Ether ether ketone resin, is a kind of high-end special engineering plastics, has prominent high intensity feature, The most also there is the features such as resistance to compression, resistance to irradiation, stable, the hydrolysis of insulating properties.(ABS, Acrylonitrile Butadiene Styrene plastic) plastics (i.e. acrylonitrile-butadiene-benzene second Alkene plastics) relatively above two material cost is lower, and cost performance is higher.Above-mentioned affix one's seal Assembly is widely used in the affixing one's seal in assembly structure of automobile current generator.

The one four groove electromotor that this utility model embodiment provides, it designs brand-new four groove skins With corresponding electromotor, coupling is installed with size of wheel；Promote electromotor low speed power generation performance, carry High reliability also reduces cost.

In sum, the one four groove electromotor that this utility model embodiment provides, structure structure Make more perfect, function more comprehensive, structural stability and poor reliability is higher, the life-span Longer, and the most specifically have suitability superior technique advantage.

It is last it is noted that various embodiments above is only in order to illustrate technology of the present utility model Scheme, is not intended to limit；Although this utility model being carried out with reference to foregoing embodiments Detailed description, it will be understood by those within the art that: it still can be to aforementioned Technical scheme described in each embodiment is modified, or to the most some or all of skill Art feature carries out equivalent；And these amendments or replacement, do not make appropriate technical solution Essence depart from this utility model each embodiment technical scheme scope.

Claims (10)

1. a groove electromotor, it is characterised in that include field frame assembly, rotor assembly, End cap assembly, commutator assembly, REG Regulator Assembly, cover cap assembly, front support bearing, after Spring bearing, belt pulley, bearing sheath；

Position relationship, layout and connected mode between above-mentioned concrete structure are as follows:

Described field frame assembly includes stator core and stator winding, slot insulation, slot wedge, rivet； Wherein, described stator core is built up by the stalloy of inner ring trough of belt, leading of described stator winding Line just embeds in the iron core slot of band slot insulation；Described stator winding has three-phase, specifically includes U phase stator winding, V phase stator winding, W phase stator winding, three-phase windings uses triangle Shape connection, winding produces three-phase alternating current；

Described rotor assembly include pawl pole, yoke, magnetic field winding, collector ring, armature spindle, Adjusting sleeve, front and back fan blade；Wherein, described armature spindle press-fits two pawl poles, two institutes Stating pawl pole and be respectively arranged with six claw shape magnetic poles, the cavity of described pawl pole is built with described magnetic field winding With described yoke；Described collector ring is made up of two copper rings insulated from each other, and collector ring press-fits Insulating on armature spindle and with axle, two collector rings two ends with magnetic field winding respectively are connected；

Described commutator assembly is for becoming unidirectional current by the three-phase alternating current of stator winding；

Described end cap assembly specifically includes Driving terminal, brush cover；

Described cover cap assembly is arranged on the rear end of described four groove electromotors；

Described front support bearing and described rear support bearing are for turning in described rotor assembly Sub-axle is supported；

Wherein, for removably connecting between described belt pulley and described rotor assembly；Described skin Belt wheel is four groove belt pulleys；Described bearing sheath is the most spacing for carrying out rear support bearing； Described bearing sheath is specially engineering plastic bearing sheath.

Four groove electromotors the most as claimed in claim 1, it is characterised in that

Described Driving terminal is used for fixing described rotor assembly, described field frame assembly, described whole Stream device assembly and described REG Regulator Assembly；Described brush cover is used for fixed brush.

Four groove electromotors the most as claimed in claim 1, it is characterised in that

The front portion of described front support bearing is additionally provided with bearing baffle.

Four groove electromotors the most as claimed in claim 3, it is characterised in that

Described bearing baffle is specially metal baffle, and the outer surface of described bearing baffle is electroplate with Trivalent environmental protection indigo plant white zine layer.

Four groove electromotors the most as claimed in claim 1, it is characterised in that

The rear end of described rear support bearing is additionally provided with bearing sheath.

Four groove electromotors the most as claimed in claim 5, it is characterised in that

Described bearing sheath is specially PBTP engineering plastic bearing sheath or PPS engineering plastics Bearing sheath.

Four groove electromotors the most as claimed in claim 1, it is characterised in that

Realize being connected by nuts and washers between described rotor assembly with described belt pulley.

Four groove electromotors the most as claimed in claim 7, it is characterised in that

Described packing ring is specially spring washer.

Four groove electromotors the most as claimed in claim 1, it is characterised in that

Described cover cap assembly is plastic structural part.

Four groove electromotors the most as claimed in claim 9, it is characterised in that

Described cover cap assembly is specially PA6 nylon engineering plastic part, ABS moulding, PPS Any one in moulding or PEEK moulding.