CN104467278A - Chromium alloy disc triangular belt wheel motor - Google Patents
Chromium alloy disc triangular belt wheel motor Download PDFInfo
- Publication number
- CN104467278A CN104467278A CN201510008055.1A CN201510008055A CN104467278A CN 104467278 A CN104467278 A CN 104467278A CN 201510008055 A CN201510008055 A CN 201510008055A CN 104467278 A CN104467278 A CN 104467278A
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- component
- bearing
- vee
- pulley
- ring
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- 229910000599 Cr alloy Inorganic materials 0.000 title abstract 4
- 239000000788 chromium alloy Substances 0.000 title abstract 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 239000004411 aluminium Substances 0.000 claims description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 239000011651 chromium Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- 229910052748 manganese Inorganic materials 0.000 claims description 8
- 239000011572 manganese Substances 0.000 claims description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 229910052698 phosphorus Inorganic materials 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 229910052721 tungsten Inorganic materials 0.000 claims description 8
- 239000011701 zinc Substances 0.000 claims description 8
- 229910052725 zinc Inorganic materials 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 241000239290 Araneae Species 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 239000005864 Sulphur Substances 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 238000005215 recombination Methods 0.000 claims description 3
- 230000006798 recombination Effects 0.000 claims description 3
- 230000003137 locomotive effect Effects 0.000 abstract description 3
- 230000005389 magnetism Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to a special motor for a motor train unit locomotive, in particular to a chromium alloy disc triangular belt wheel motor. The chromium alloy disc triangular belt wheel motor is characterized in that a front closed water flow cavity is formed between the inner plane of a front end cover and a magnetism isolating aluminum plate, and a front cavity inlet pipe and a front cavity outlet pipe on the front closed water flow cavity penetrate through the front end cover and then are externally connected to a water supply and drainage system. A rear closed water flow cavity is formed between the inner plane of a rear end cover and the magnetism isolating aluminum plate, a rear cavity inlet pipe and a rear cavity outlet pipe on the rear closed water flow cavity penetrate through the rear end cover and then are externally connected to the water supply and drainage system. A rear bearing cover is arranged on the rear end cover and fixed to the rear end cover through screws, the inner end of the rear bearing cover stretches into rear cover bearing holes in the rear end cover and abuts against rear bearings. A force separating component is fixed to the front end cover through screws, and the inner end of a component adjusting ring on the force separating component stretches into front cover bearing holes in the front end cover and abuts against front bearings. Inner-ring-free bearings are arranged between the outer end of the force separating component and a triangular belt wheel. A hard chromium alloy water resistant layer is compounded to the surfaces of outer bearing supporting circles of the force separating component.
Description
Technical field
The present invention relates to a kind of motor train unit locomotive definite purpose motor, have dual rigors to dimensional space and useful life, be specifically related to a kind of evanohm disc type vee-pulley motor.
Background technology
The motor performance of EMU to trailer system has special rigors, and e.g., high pulling torque, low noise, bending resistance square and dispel the heat efficient etc., for this reason, European and American developed countries mostly adopt disc type electric machine.Spatially there is the relation of vying each other due to electric loading and magnetic loading in traditional radial magnetic field magneto, therefore, power of motor density and Driving Torque density little, generally make the torque motor of large torque, but material cost is high.Existing disc-type permanent magnet motor, its air gap main field is axially, and also known as axial magnetic field permanent magnet motor, it well utilizes radial and axial space, and power of motor density and torque density are improved.Advantage is: axial dimension is short, compact conformation, and torque inertia is low.From topological structure, its rotor divides surface bonded and built-in embedded, and both all easily make the axial air-gap magnetic field of inner radius saturated, and the effective rate of utilization of permanent magnet is low, causes the waste of permanent magnet.In addition, motor is except exporting with associated mode, and machine shaft only bears pure torsion.That the torsional forces mode being attended by radial moment of flexure exports time more, as: vee-pulley etc.When equal-wattage and rotating speed, the machine shaft diameter of carrying bending synthesis is that more than the twice of the machine shaft diameter of carrying pure torsion just can guarantee there are enough coefficient of safetys.Therefore, in order to allow machine shaft bear bending moment force, have to machine shaft diameter to increase exponentially, finally cause series of malpractice: motor bearings linear velocity also increases exponentially, self in-fighting increases exponentially, and in-fighting causes caloric value to increase exponentially.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of evanohm disc type vee-pulley motor, machine shaft only bears pure torsion, set up component component and share moment of flexure load, to reduce the diameter dimension of machine shaft to adapt to this special occasions dimensional space and useful life being had to dual rigors of motor train unit locomotive.
To achieve these goals, the present invention realizes by the following technical solutions:
A kind of evanohm disc type vee-pulley motor, comprise motor housing, front end housing, rear end cap, machine shaft, front stator, rear stator, rotor and vee-pulley, described front end housing and described rear end cap are fixedly connected on face, motor housing rear and front end respectively, described front end housing inboard and described rear end cap inboard are all fixed with every magnetic aluminium sheet, on described front end housing every magnetic aluminium sheet inboard be fixed with described front stator, on described rear end cap every magnetic aluminium sheet inboard be fixed with described rear stator, described rotor is fixed on described machine shaft, described rotor is between described front stator and described rear stator and there is air gap both sides, described machine shaft is supported on described front end housing and described rear end cap by fore bearing and rear bearing respectively,
As improvement: plane and have front airtight current chamber between magnetic aluminium sheet in described front end housing, the ante-chamber inlet pipe on front airtight current chamber and ante-chamber go out after pipe passes through described front end housing to be respectively external to supply and drain water system; Plane and have rear airtight current chamber between magnetic aluminium sheet in described rear end cap, the back cavity inlet pipe on rear airtight current chamber and back cavity go out after pipe passes through described rear end cap to be respectively external to supply and drain water system;
Described rear end cap is equipped with bearing bonnet, bearing bonnet is fixed by screws on described rear end cap, and described bearing bonnet the inner is stretched into the bonnet dead eye on described rear end cap and props up described rear bearing; Described front end housing is fixed with component component, and described component component is fixed by screws on described front end housing, and the component for adjusting ring the inner on described component component is stretched into the Front Cover Bearing hole on front end housing and props up described fore bearing; No inner-ring bearing is had between described component component outer end and described vee-pulley; The outer bearing of described component component supports circular surfaces and is compounded with the evanohm hard wear-resistant layer that a layer thickness is 0.8 to 0.9 millimeter;
The material of described evanohm hard wear-resistant layer is made up of by shared part by weight following element: Cr(chromium): 21 ~ 22%, Mo(molybdenum): 8 ~ 9%, Cu(copper): 7 ~ 8%, Ni(nickel): 6 ~ 7%, Zn(zinc): 4 ~ 5%, W(tungsten): 2.1 ~ 2.3%, C(carbon): 1.3 ~ 1.5%, surplus is Fe(iron) and inevitable impurity; The weight percent content of described impurity is: Sn(tin) be less than 0.05%, Si(silicon) be less than 0.20%, Mn(manganese) be less than 0.25%, S(sulphur) be less than 0.0l0%, P(phosphorus) be less than 0.015%; The material Specifeca tion speeification of described evanohm hard wear-resistant layer is: every cubic centimetre of density is 7.9 grams; Rockwell hardness HRC value is 53 ~ 55.
As further improvement: described front stator and described rear stator formed by stator core and armature winding, described rotor is made up of rotor core and permanent magnet, described permanent magnet is arranged between adjacent rotor iron core, and described permanent magnet is along the circumferential direction evenly inserted in rotor field spider; The radial outside of described rotor core and described permanent magnet is provided with the outer hub of rotor, and the outer hub outer surface of rotor is provided with Circular gratings sheet, and what the casing inner wall of described motor housing is provided with hub corresponding setting outer with described rotor has grating reading head.
As further improvement: there is axle flat key section between the component inner bore of step of described component component and overhanging section of the rotating shaft of described machine shaft, the outer bearing of described component component props up the cylinder needle roller holding round and support on described no inner-ring bearing, the cylindrical of the needle roller outer ring on described no inner-ring bearing is fixed on the belt wheel stepped hole inner round wall of described vee-pulley, axis for spline tooth circumferential engagement between described belt wheel stepped hole bottom surface Shang You V-belt splined hole and the axle head spline on described machine shaft slidably coordinates, the end face of described axle head spline there is axle head screw, axle head screw is combined with the axial displacement that step backing-up screw limits axial location back-up ring, axial location back-up ring outer rim position is fixed on the outer transverse plane of described V-belt splined hole, then the axial displacement of described vee-pulley is limited.
As further improvement: described axial location back-up ring lateral surface has locking catch together with described axial location back-up ring, be fixed on the outer transverse plane of described V-belt splined hole by back-up ring screw; On any flat limit that described locking catch has catch corner edges to be close on two flat side bumper shoulder caps of described step backing-up screw.
As further improvement: described vee-pulley cylindrical has V-type trough of belt, described vee-pulley outer face there is vee-pulley end face screw, described belt wheel stepped hole there are vee-pulley escape and vee-pulley draw-in groove, in vee-pulley draw-in groove, activity is combined with V-belt wheel bore snap ring, described position, belt wheel stepped hole base angle is placed with vee-pulley adjusting ring, and described both sides, needle roller outer ring against described V-belt wheel bore snap ring and described vee-pulley adjusting ring respectively.
As further improvement: described component component has component flange, having inside component flange between component for adjusting ring cylindrical and described Front Cover Bearing hole is interference fits; Component for adjusting ring cylindrical and described outer bearing have axiality relation between propping up and holding round; Described front end housing lateral surface there is protecgulum concave station face, protecgulum concave station face has five to six protecgulum screws, described component flange has five to six component pillow holes corresponding with described protecgulum screw; There is between described protecgulum concave station face and described Front Cover Bearing hole the perpendicularity relation of Pyatyi tolerance grade.
As further improvement: the bonnet dead eye lateral surface on described rear end cap has bonnet concave station face, bonnet concave station face has five to six bonnet screws, described bearing bonnet there are five to six bonnet through holes corresponding with described bonnet screw; There is between described bonnet concave station face and described bonnet dead eye the perpendicularity relation of seven grades of tolerance grades.
The present invention has following beneficial effect:
1, the permanent magnet cross section in the present invention is isosceles trapezoid, and axial magnetic field increases from inside to outside gradually, avoids magnetic field to occur saturated in inner radius, improves the utilization ratio of permanent magnet.In addition, owing to being formed with taper seat air gap between stator core and rotor core and permanent magnet, increasing air gap effective area, further improve the utilization ratio of permanent magnet;
2, among the component component in the present invention, outside component flange, outer bearing props up the axiality held round between component for adjusting ring cylindrical is that the error of millimeter unit sizes is less than or equal to. millimeter, is similar to absolute concentric shafts.Prop up to hold round in order to ensure the outer bearing on component component, between component for adjusting ring cylindrical, there is high accuracy axiality, guarantee that machine shaft and vee-pulley also have axiality relation, realize the steady coaxial rotating of vee-pulley; Said structure achieves machine shaft and fore bearing and rear bearing only need bear pure torsion, and the radial load that V belt produces react to vee-pulley be can completely bear by no inner-ring bearing, only act on component component, radial load is born in overhanging section of the rotating shaft that completely avoid on machine shaft;
Motor front end cover arranges component component, and shared all moment of flexure loads, made machine shaft only bear pure torsion, the machine shaft diameter under equal-wattage can reduce half, finally realizes motor entirety and has breakthrough compact.Owing to meeting under the prerequisite of rated power, can accomplish that the limit is little in design, only bearing pure torsion by asking the diameter of machine shaft, meanwhile, because component member integrated shape belongs to hollow short tube, therefore structural rigidity is superpower, can bear larger radial load.Both combine, and present invention achieves and can do compact by whole motor size, can bear larger radial load again, run more reliable, thus extend the useful life of motor.
3, the outer bearing of component component supports circular surfaces has a layer thickness to be the evanohm hard wear-resistant layer of 0.8 to 0.9 millimeter, possesses superpower resistance to wear.
Accompanying drawing explanation
Figure l is overall structure partial cutaway schematic of the present invention.
Fig. 2 is the motor housing 10 amplification profile schematic diagram in Fig. 1.
Front end housing 20 enlarged local section schematic diagram in Fig. 3 Fig. 1.
Rear end cap 30 enlarged local section schematic diagram in Fig. 4 Fig. 1.
Fig. 5 is the heavy gauge schematic diagram at position residing for component component 80 in Fig. 1 and vee-pulley 90.
Fig. 6 is local amplification profile schematic diagram again in Fig. 5.
Fig. 7 is vee-pulley 90 1 end view in Fig. 5.
Fig. 8 is the vee-pulley 90 amplification profile schematic diagram in Fig. 5.
Fig. 9 is the component component 80 amplification profile schematic diagram in Fig. 1.
Figure 10 is the generalized section that component component 80 is processed by special clamping apparatus clamping.
Figure 11 is Figure 10 left side view.
Figure 12 is the generalized section of left expansion set 15 in Figure 10 or right expansion set 16.
Figure 13 is Figure 12 right side view.
Figure 14 is Figure 12 left side view.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments:
A kind of evanohm disc type vee-pulley motor, comprise motor housing 10, front end housing 20, rear end cap 30, machine shaft 40, front stator 51, rear stator 52, rotor 50 and vee-pulley 90, front end housing 20 and rear end cap 30 are fixedly connected on face, motor housing 10 rear and front end respectively, front end housing 20 inboard and rear end cap 30 inboard are all fixed with every magnetic aluminium sheet 23, front end housing 20 is fixed with front stator 51 every magnetic aluminium sheet 23 inboard, rear end cap 30 is fixed with rear stator 52 every magnetic aluminium sheet 23 inboard, rotor 50 is fixed on machine shaft 40, rotor 50 is between front stator 51 and rear stator 52 and there is air gap both sides, machine shaft 40 is supported on front end housing 20 and rear end cap 30 by fore bearing 25 and rear bearing 35 respectively,
As improvement: front end housing 20 li of planes and have front airtight current chamber 78 between magnetic aluminium sheet 23, the ante-chamber inlet pipe 17 on front airtight current chamber 78 and ante-chamber go out after pipe 18 passes through front end housing 20 to be respectively external to supply and drain water system; Rear end cap 30 li of planes and have rear airtight current chamber 79 between magnetic aluminium sheet 23, the back cavity inlet pipe 37 on rear airtight current chamber 79 and back cavity go out after pipe 36 passes through rear end cap 30 to be respectively external to supply and drain water system;
Rear end cap 30 is equipped with bearing bonnet 33, bearing bonnet 33 is fixed by screws on rear end cap 30, and bearing bonnet 33 the inner is stretched into the bonnet dead eye 34 on rear end cap 30 and propped up rear bearing 35; Front end housing 20 is fixed with component component 80, and component component 80 is fixed by screws on front end housing 20, and component for adjusting ring 82 the inner on component component 80 is stretched into the Front Cover Bearing hole 24 on front end housing 20 and props up fore bearing 25; No inner-ring bearing 60 is had between component component 80 outer end and vee-pulley 90; The outer bearing of component component 80 props up and holds round 89 surface recombination and have a layer thickness to be the evanohm hard wear-resistant layer of 0.8 to 0.9 millimeter;
The material of evanohm hard wear-resistant layer is made up of by shared part by weight following element: Cr(chromium): 21 ~ 22%, Mo(molybdenum): 8 ~ 9%, Cu(copper): 7 ~ 8%, Ni(nickel): 6 ~ 7%, Zn(zinc): 4 ~ 5%, W(tungsten): 2.1 ~ 2.3%, C(carbon): 1.3 ~ 1.5%, surplus is Fe(iron) and inevitable impurity; The weight percent content of described impurity is: Sn(tin) be less than 0.05%, Si(silicon) be less than 0.20%, Mn(manganese) be less than 0.25%, S(sulphur) be less than 0.0l0%, P(phosphorus) be less than 0.015%; The material Specifeca tion speeification of described evanohm hard wear-resistant layer is: every cubic centimetre of density is 7.9 grams; Rockwell hardness HRC value is 54.
As further improvement: front stator (51) and rear stator (52) formed by stator core 26 and armature winding 22, rotor 50 is made up of rotor core 11 and permanent magnet 12, described permanent magnet 12 is arranged between adjacent rotor iron core 11, and described permanent magnet 12 is along the circumferential direction evenly inserted in rotor field spider 32; The radial outside of rotor core 11 and permanent magnet 12 is provided with the outer hub 13 of rotor, the outer hub 13 of rotor plays the effect of fastening rotor core 11 and permanent magnet 12, outer hub 13 outer surface of rotor is provided with Circular gratings sheet 86, what the casing inner wall 19 of motor housing (10) is provided with hub 13 corresponding setting outer with described rotor has grating reading head 55, for measuring angle and the rotating speed of electric machine rotation.
As further improvement: have axle flat key section 88 between the component inner bore of step 84 of component component 80 and the rotating shaft of machine shaft 40 overhanging section 46, the outer bearing of component component 80 props up and holds round 89 and support cylinder needle roller 68 on no inner-ring bearing 60, the cylindrical of the needle roller outer ring 69 on no inner-ring bearing 60 is fixed on belt wheel stepped hole 96 inner round wall of vee-pulley 90, axis for spline tooth circumferential engagement between Shang You V-belt, belt wheel stepped hole 96 bottom surface splined hole 94 and the axle head spline 49 on machine shaft 40 slidably coordinates, the end face of axle head spline 49 there is axle head screw 47, axle head screw 47 is combined with the axial displacement that step backing-up screw 74 limits axial location back-up ring 70, axial location back-up ring 70 outer rim position is fixed on the outer transverse plane of V-belt splined hole 94, then the axial displacement of vee-pulley 90 is limited.
As further improvement: axial location back-up ring 70 lateral surface has locking catch 71 together with axial location back-up ring 70, be fixed on the outer transverse plane of V-belt splined hole 94 by back-up ring screw 77; On any flat limit that locking catch 71 has catch corner edges 72 to be close on two flat side bumper shoulder caps 73 of step backing-up screw 74.
As further improvement: vee-pulley 90 cylindrical has V-type trough of belt 99, vee-pulley 90 outer face there is vee-pulley end face screw 97, belt wheel stepped hole 96 there are vee-pulley escape 93 and vee-pulley draw-in groove 98, in vee-pulley draw-in groove 98, activity is combined with V-belt wheel bore snap ring 91, position is placed with vee-pulley adjusting ring 92 at belt wheel stepped hole 96 base angle, and both sides, needle roller outer ring 69 against V-belt wheel bore snap ring 91 and vee-pulley adjusting ring 92 respectively.
As further improvement: component component 80 there is component flange 87, having inside component flange 87 between component for adjusting ring 82 cylindrical and Front Cover Bearing hole 24 is interference fits; Component for adjusting ring 82 cylindrical and outer bearing have axiality relation between propping up and holding round 89; Front end housing 20 lateral surface there is protecgulum concave station face 29, protecgulum concave station face 29 has five to six protecgulum screws 27, component flange 87 has five to six component pillow holes 85 corresponding with protecgulum screw 27; Component screw 28 passes through component pillow hole 85 and matches with protecgulum screw 27, is fixed on by component component 80 on protecgulum concave station face 29; There is between protecgulum concave station face 29 and Front Cover Bearing hole 24 the perpendicularity relation of Pyatyi tolerance grade.
As further improvement: bonnet dead eye 34 lateral surface on rear end cap 30 has bonnet concave station face 75, bonnet concave station face 75 has five to six bonnet screws 65, bearing bonnet (33) there are five to six bonnet through holes corresponding with bonnet screw 65; Rear cover screw 67 passes through bonnet through hole and matches with bonnet screw 65, is fixed on by rear end cap 30 on bonnet concave station face 75; There is between bonnet concave station face 75 and bonnet dead eye 34 the perpendicularity relation of seven grades of tolerance grades.
In embodiment, described rotor core 11 and permanent magnet 12 are being isosceles trapezoid perpendicular to the cross section in motor direction of rotation, be placed between former and later two stator cores 26, its hypotenuse is parallel with the hypotenuse of the parallelogram section of described two stator cores 26 respectively and align vertically, at described rotor core 11 and the air gap all forming cone surface shape between permanent magnet 12 and two stator cores 26;
The Front Cover Bearing hole 24 of front end housing 20 is fixed wtih fore bearing 25 cylindrical, fore bearing 25 endoporus is fixed wtih the fore bearing section 45 of machine shaft 40; The bonnet dead eye 34 of rear end cap 30 is fixed wtih rear bearing 35 cylindrical, rear bearing 35 endoporus is fixed wtih the rear bearing section 43 of machine shaft 40.
Have installation sole below motor housing 10, install between sole and motor housing 10 and have reinforced company's muscle, motor housing 10 outer wall has terminal box, and cable passes through terminal box and is connected to external control power supply; Flat key 14 transmitting torque is had for interference fits between rotational clearance 48 on rotor field spider 32 endoporus and machine shaft 40.
The outer bearing of component component 80 props up and holds round 89 surface recombination and have a layer thickness to be the evanohm hard wear-resistant layer of 0.85 millimeter, the material of evanohm hard wear-resistant layer is made up of by shared part by weight following element: Cr(chromium): 21.5%, Mo(molybdenum): 8.5%, Cu(copper): 7.5%, Ni(nickel): 6.5%, Zn(zinc): 4.5%, W(tungsten): 2.2%, C(carbon): 1.4%, surplus is Fe(iron) and inevitable impurity; The weight percent content of described impurity is: Sn(tin) be 0.04%, Si(silicon) be 0.18%, Mn(manganese) be 0.21%, S(sulphur) be less than 0.009%, P(phosphorus) be less than 0.012%; The material Specifeca tion speeification of described evanohm hard wear-resistant layer is: every cubic centimetre of density is 7.9 grams; Rockwell hardness HRC value is 58.5 degree.
Front end housing 20 is fixed on motor housing 10 front end face by the protecgulum housing hole 39 that 8 front screws 21 pass through on front end housing 20, and rear end cap 30 is fixed on motor housing 10 rear end face by the bonnet housing hole 38 that after 8, screw 31 passes through on rear end cap 30.
A key technology of the present invention is: front stator 51 and rear stator 52 formed by stator core 26 and armature winding 22, rotor 50 is along the circumferential direction evenly inserted in rotor field spider 32 by several rotor cores 11 and the permanent magnet 12 be arranged between adjacent rotor iron core 11 and forms, the radial outside of rotor core 11 and permanent magnet 12 is provided with the outer hub 13 of rotor, play fastening effect, outer hub 13 outer surface of rotor is provided with Circular gratings sheet 86, the casing inner wall 19 of motor housing 10 there is the correspondence position of the outer hub 13 with described rotor be provided with grating reading head 55, for measuring angle and the rotating speed of electric machine rotation.
Another key technology of the present invention is: among component component 80, outside component flange 87, outer bearing props up the axiality held round between 89 and component for adjusting ring 82 cylindrical is that the error of 100 millimeters of unit sizes is less than or equal to 0.01 millimeter, is similar to absolute concentric shafts.Prop up to hold round between 89 and component for adjusting ring 82 cylindrical in order to ensure the outer bearing on component component 80 and there is high accuracy axiality, adopt following process steps:
One, special clamping apparatus prepares:
(1) pole 44 two ends have the left central hole of pole 41 and the right central hole 42 of pole respectively with one heart, concentric pole 44 cylindrical is that disposable fine grinding forms centered by the left central hole of pole 41 with the right central hole of pole 42, guarantees that concentric pole 44 cylindrical is centered by the left central hole of pole 41 with the right central hole 42 of pole;
(2) left expansion set 15 and right expansion set 16 all comprise: opening biconical outer ring 56, opening biconical inner ring 57, unthreaded hole cone carves ring 58, screw cone carves ring 59 and plane bearing 54 and expansion set bolt 53;
When expansion set bolt 53 pass through successively plane bearing 54 and unthreaded hole cone carve ring 58 and screw bore carve ring 59 rotatable engagement time, ring 58 and screw can be carved bore and carve between ring 59 close to each other by Synchronization Control unthreaded hole cone, hold concentric pole 44 cylindrical tightly by outside for opening biconical outer ring 56 swollen stretching component inner bore of step 84 and by inwardly swollen for opening biconical inner ring 57 respectively;
(3) heart-shaped fixture 66 shape is that the combination of " V " font is semicircle, there is fixture boss 63 the semicircle top of heart-shaped fixture 66, there is fixture cross bar 61 side to fixture boss 63 1, have fixture screw 64 through between fixture boss 63 and heart-shaped fixture 66 semicircle, fixture bolt 62 passes through fixture screw 64 and the workpiece of different-diameter can be fixed on " V " font both sides of heart-shaped fixture 66.
Two, roughing and laser spraying:
(1), component component 80 is processed according to drawing dimensional requirement, wherein outer bearing props up and holds round 89 outer round surface single side size and be less than drawing requirement 0.8 to 0.9 millimeter, all the other dimensioned are to reserved 0.2 to 0.3 millimeter of fine grinding surplus, and holding member inner bore of step 84 is not processed simultaneously;
(2), adopt laser spraying method, the material spraying of evanohm hard wear-resistant layer is propped up to outer bearing and holds round 89 outer round surface, be greater than drawing requirement 0.2 to 0.3 millimeter to single side size.
Three, lapping process:
(1) by through roughing and the component component 80 completing laser spraying carries out preprocessing, bearings circle 89 outer round surface and component for adjusting ring 82 outer round surface are benchmark simultaneously in addition, tool member inner bore of step 84 to drawing dimensional requirement;
(2) swelling connects, the opening biconical outer ring 56 of left expansion set 15 and right expansion set 16 is enclosed within concentric pole 44 cylindrical respectively, the opening biconical inner ring 57 of left expansion set 15 and right expansion set 16 is distinguished alignment members inner bore of step 84 near two ends, expansion set bolt on left expansion set 15 and right expansion set 16 is tightened respectively, unthreaded hole on left expansion set 15 and right expansion set 16 is bored carve ring 58 and screw to bore to carve between ring 59 close to each other, hold concentric pole 44 cylindrical tightly by outside for opening biconical outer ring 56 swollen stretching component inner bore of step 84 and by inwardly swollen for opening biconical inner ring 57 respectively;
(3) the fixture bolt 62 on heart-shaped fixture 66 passes through fixture screw 64 and tightens and is fixed on " V " font both sides of heart-shaped fixture 66 by concentric pole 44 cylindrical;
(4) by the left central hole of pole 41 on concentric pole 44 and the right central hole 42 of pole respectively with grinding machine head stock center addendum cone and grinding machine afterbody addendum cone, fixture cross bar 61 hasp again on heart-shaped fixture 66 lives grinding machine head stock rotating disk, make component component 80 can along with the rotation of grinding machine head stock rotating disk synchronous rotary;
(5) advance finishing wheel by size required by component for adjusting ring 82 fine grinding cylinder to drawing, exit finishing wheel to move to outer bearing and prop up and hold round 89 positions, advance finishing wheel to be propped up by outer bearing and hold round size required by 89 fine grinding cylinder to drawing, so far, be positioned at the component for adjusting ring 82 of component flange 87 both sides and outer bearing to prop up and hold round 89 and once clamp lapping process and complete, avoid conventional machining and be positioned at the component for adjusting ring 82 of component flange 87 both sides and outer bearing props up the disalignment error holding round the 89 processing technology programs that must turn around to clamp for twice and bring, to achieve key technology of the present invention be that outer bearing props up the axiality held round between 89 and component for adjusting ring 82 cylindrical outside component flange 87 is that the error of 100 millimeters of unit sizes is less than or equal to 0.01 millimeter.
Four, critical component number of assembling steps:
(1), component component 80 is installed, by the component for adjusting ring 82 on component component 80 and nearly outer end place, the Front Cover Bearing hole 24 on front end housing 20 interference fits, and match with the protecgulum screw 27 on front end housing 20 with the component pillow hole 85 that component screw 28 passes through on component component 80, component flange 87 on component component 80 is close to fixing with the protecgulum concave station face 29 on front end housing 20, makes the rotational clearance 48 having 1 millimeter between rotating shaft overhanging section of 46 outlines of the component inner bore of step 84 on component component 80 and machine shaft 40;
(2), install needle roller outer ring 69, no inner-ring bearing 60 selects RNA type separate type no inner-ring bearing.First vee-pulley adjusting ring 92 matched in clearance being put among the belt wheel stepped hole 96 on vee-pulley 90 and crossing vee-pulley escape 93 is attached on wheel bore bottom surface, V-belt 95; Again by among the belt wheel stepped hole 96 on the needle roller outer ring 69 on no inner-ring bearing 60 slightly interference fit press-in vee-pulley 90, finally V-belt wheel bore snap ring 91 is put into vee-pulley draw-in groove 98 with specific purpose tool, make both sides, needle roller outer ring 69 against V-belt wheel bore snap ring 91 and vee-pulley adjusting ring 92 respectively;
(3) connection, between vee-pulley 90 with machine shaft 40: the needle roller outer ring 69 be fixed on vee-pulley 90 is inserted in together with cylinder needle roller 68 and is fixed on outer bearing and props up and hold round 89 last points, slowly rotate vee-pulley 90, V-belt splined hole 94 on vee-pulley 90 is aimed at the axle head spline 49 on machine shaft 40 match, continue pushing vee-pulley 90, the overall and outer bearing of the cylinder needle roller 68 on needle roller outer ring 69 is propped up hold round 89 to match completely;
First take after step backing-up screw 74 passes through axial location back-up ring 70 centre bore and match with the axle head screw 47 on machine shaft 40, the two flat side bumpers of axial location back-up ring 70 on step backing-up screw 74 are takeed between caps 73 and axle head spline 49 outer face has one millimeter axially freely to measure;
Match with the vee-pulley end face screw 97 on vee-pulley 90 pass through the positioning retainer ring through hole 76 on axial location back-up ring 70 again with five back-up ring screws 77 after, axial location back-up ring 70 is also fastened on vee-pulley 90 outer face;
Also match with the vee-pulley end face screw 97 on vee-pulley 90 after finally passing through the through hole on locking catch 71 and the positioning retainer ring through hole 76 on axial location back-up ring 70 successively with a back-up ring screw 77, on any flat limit that catch corner edges 72 on locking catch 71 is aimed on two flat side bumper shoulder caps 73, play and loosen effect.
Install.
Five, run:
When the motor is energized, the moment of torsion that electromagnetic force produces is by the axle head spline 49 on machine shaft 40, and the V-belt splined hole 94 on vee-pulley 90 passes to the V-type trough of belt 99 on vee-pulley 90, realizes moment of torsion and exports.
Table 1 be present invention employs component component fore bearing after 80s 25 the fore bearing section 45 radius run-out degree micron of machine shaft 40 fixed with do not adopt the fore bearing 2 of the constant power motor of component component 80 the experimental data of the fore bearing section 45 radius run-out degree micron of machine shaft 40 of fixing compare.
The data of the radius run-out degree micron at table 1 fore bearing section 45 position compare
Contrasting data from table 1 can draw: it is after 80s that fore bearing 25 outer end have employed component component, load suffered by fore bearing 25 alleviates wearing and tearing and reduces, cause fore bearing 25 the radius run-out degree micron at fore bearing section 45 position of machine shaft 40 fixed more stable.
The front end housing 20 of motor arranges component component 80, and shared all moment of flexure loads, made machine shaft 40 only bear pure torsion, the machine shaft diameter under equal-wattage can reduce half, finally realizes motor entirety and has breakthrough compact.Owing to meeting under the prerequisite of rated power, can accomplish that the limit is little by asking the diameter of machine shaft 40 in design, only bearing pure torsion, simultaneously, because component component 80 global shape belongs to hollow short tube, therefore structural rigidity is superpower, can bear larger radial load.Both combine, and present invention achieves and can do compact by whole motor size, can bear larger radial load again, run more reliable, thus extend the useful life of motor.
Table 2 is that the outer bearing in the present invention props up and holds round 89 surfaces to have employed a layer thickness be that evanohm hard wear-resistant layer and the outer bearing of 0.2 to 0.3 millimeter props up and hold round 89 surfaces and do not adopt a layer thickness to be that the corrosion resistant wear test data of the evanohm hard wear-resistant layer of 0.2 to 0.3 millimeter compare.
The outer bearing of table 2 component component 80 props up and holds round 89 surface abrasion data and compare
Contrasting data from table 2 can draw: the outer bearing of component component 80 props up and holds round 89 surfaces and have a layer thickness to be the evanohm hard wear-resistant layer of 0.2 to 0.3 millimeter, possesses superpower resistance to wear.
The present invention has following outstanding substantive distinguishing features and significant progressive effect.
Permanent magnet 12 cross section in the present invention is isosceles trapezoid, and axial magnetic field increases from inside to outside gradually, avoids magnetic field to occur saturated in inner radius, improves the utilization ratio of permanent magnet 12.In addition, owing to being formed with taper seat air gap between stator core 26 and rotor core 11 and permanent magnet 12, increase air gap effective area, further improve the utilization effect of permanent magnet 12.
Among component component 80 in the present invention, outside component flange 87, outer bearing props up the axiality held round between 89 and component for adjusting ring 82 cylindrical is that the error of 100 millimeters of unit sizes is less than or equal to 0.01 millimeter, is similar to absolute concentric shafts.Prop up to hold round between 89 and component for adjusting ring 82 cylindrical in order to ensure the outer bearing on component component 80 and there is high accuracy axiality, guarantee that machine shaft 40 and vee-pulley 90 also have axiality relation, realize vee-pulley 90 steadily coaxial rotating.
Said structure achieves machine shaft 40 and fore bearing 25 and rear bearing 35 need and bears pure torsion, and the radial load that V belt produces react to vee-pulley 90 be can completely bear by no inner-ring bearing 60, only act on component component 80, the rotating shaft that completely avoid on machine shaft 40 bears radial load for overhanging section 46.
Claims (7)
1. an evanohm disc type vee-pulley motor, comprise motor housing (10), front end housing (20), rear end cap (30), machine shaft (40), front stator (51), rear stator (52), rotor (50) and vee-pulley (90), described front end housing (20) and described rear end cap (30) are fixedly connected on motor housing (10) face, rear and front end respectively, described front end housing (20) inboard and described rear end cap (30) inboard are all fixed with every magnetic aluminium sheet (23), described front end housing (20) is fixed with described front stator (51) every magnetic aluminium sheet (23) inboard, described rear end cap (30) is fixed with described rear stator (52) every magnetic aluminium sheet (23) inboard, described rotor (50) is fixed on described machine shaft (40), described rotor (50) is positioned between described front stator (51) and described rear stator (52) and there is air gap both sides, described machine shaft (40) is supported on described front end housing (20) and described rear end cap (30) by fore bearing (25) and rear bearing (35) respectively, it is characterized in that:
Described front end housing (20) inner plane and have front airtight current chamber (78) between magnetic aluminium sheet (23), the ante-chamber inlet pipe (17) on front airtight current chamber (78) and ante-chamber go out after pipe (18) passes through described front end housing (20) to be respectively external to supply and drain water system; Described rear end cap (30) inner plane and have rear airtight current chamber (79) between magnetic aluminium sheet (23), the back cavity inlet pipe (37) on rear airtight current chamber (79) and back cavity go out after pipe (36) passes through described rear end cap (30) to be respectively external to supply and drain water system; Described rear end cap (30) is equipped with bearing bonnet (33), bearing bonnet (33) is fixed by screws on described rear end cap (30), and described bearing bonnet (33) the inner is stretched into the bonnet dead eye (34) on described rear end cap (30) and propped up described rear bearing (35); Described front end housing (20) is fixed with component component (80), described component component (80) is fixed by screws on described front end housing (20), and component for adjusting ring (82) the inner on described component component (80) is stretched into the Front Cover Bearing hole (24) on front end housing (20) and propped up described fore bearing (25); No inner-ring bearing (60) is had between described component component (80) outer end and described vee-pulley (90); The outer bearing of described component component (80) props up and holds round (89) surface recombination and have a layer thickness to be the evanohm hard wear-resistant layer of 0.8 to 0.9 millimeter;
The material of described evanohm hard wear-resistant layer is made up of by shared part by weight following element: Cr(chromium): 21 ~ 22%, Mo(molybdenum): 8 ~ 9%, Cu(copper): 7 ~ 8%, Ni(nickel): 6 ~ 7%, Zn(zinc): 4 ~ 5%, W(tungsten): 2.1 ~ 2.3%, C(carbon): 1.3 ~ 1.5%, surplus is Fe(iron) and inevitable impurity; The weight percent content of described impurity is: Sn(tin) be less than 0.05%, Si(silicon) be less than 0.20%, Mn(manganese) be less than 0.25%, S(sulphur) be less than 0.0l0%, P(phosphorus) be less than 0.015%; The material Specifeca tion speeification of described evanohm hard wear-resistant layer is: every cubic centimetre of density is 7.9 grams; Rockwell hardness HRC value is 53 ~ 55.
2. a kind of evanohm disc type vee-pulley motor according to claim 1, it is characterized in that: described front stator (51) and described rear stator (52) formed by stator core (26) and armature winding (22), described rotor (50) is made up of rotor core (11) and permanent magnet (12), described permanent magnet (12) is arranged between adjacent rotor iron core (11), and described permanent magnet (12) is along the circumferential direction evenly inserted in rotor field spider (32); Described rotor core (11) and the radial outside of described permanent magnet (12) are provided with the outer hub (13) of rotor, outer hub (13) outer surface of rotor is provided with Circular gratings sheet (86), and what the casing inner wall (19) of described motor housing (10) is provided with hub (13) corresponding setting outer with described rotor has grating reading head (55).
3. according to claim l evanohm disc type vee-pulley motor, it is characterized in that: between the component inner bore of step (84) of described component component (80) and overhanging section of the rotating shaft (46) of described machine shaft (40), have axle flat key section (88), the outer bearing of described component component (80) props up and holds round (89) and support cylinder needle roller (68) on described no inner-ring bearing (60), the cylindrical of the needle roller outer ring (69) on described no inner-ring bearing (60) is fixed on belt wheel stepped hole (96) inner round wall of described vee-pulley (90), axis for spline tooth circumferential engagement between described Shang You V-belt splined hole, belt wheel stepped hole (96) bottom surface (94) and the axle head spline (49) on described machine shaft (40) slidably coordinates, the end face of described axle head spline (49) there is axle head screw (47), axle head screw (47) is combined with the axial displacement that step backing-up screw (74) limits axial location back-up ring (70), axial location back-up ring (70) outer rim position is fixed on described V-belt splined hole (94) outer transverse plane, then the axial displacement of described vee-pulley (90) is limited.
4. a kind of evanohm disc type vee-pulley motor according to claim 3, it is characterized in that: described axial location back-up ring (70) lateral surface has locking catch (71) together with described axial location back-up ring (70), be fixed on described V-belt splined hole (94) outer transverse plane by back-up ring screw (77); On any flat limit that described locking catch (71) has catch corner edges (72) to be close on two flat side bumpers shoulder cap (73) of described step backing-up screw (74).
5. a kind of evanohm disc type vee-pulley motor according to claim 3, it is characterized in that: described vee-pulley (90) cylindrical has V-type trough of belt (99), described vee-pulley (90) outer face there is vee-pulley end face screw (97), described belt wheel stepped hole (96) there are vee-pulley escape (93) and vee-pulley draw-in groove (98), in vee-pulley draw-in groove (98), activity is combined with V-belt wheel bore snap ring (91), described belt wheel stepped hole (96) position, base angle is placed with vee-pulley adjusting ring (92), described needle roller outer ring (69) both sides against described V-belt wheel bore snap ring (91) and described vee-pulley adjusting ring (92) respectively.
6. a kind of evanohm disc type vee-pulley motor according to claim 3, it is characterized in that: described component component (80) has component flange (87), it is interference fits that component flange (87) inner side has between component for adjusting ring (82) cylindrical and described Front Cover Bearing hole (24); Component for adjusting ring (82) cylindrical and described outer bearing prop up to hold round between (89) has axiality relation; Described front end housing (20) lateral surface there is protecgulum concave station face (29), protecgulum concave station face (29) there are five to six protecgulum screws (27), described component flange (87) have five to six components pillow hole (85) corresponding with described protecgulum screw (27); There is between described protecgulum concave station face (29) and described Front Cover Bearing hole (24) the perpendicularity relation of Pyatyi tolerance grade.
7. a kind of evanohm disc type vee-pulley motor according to claim 3, it is characterized in that: bonnet dead eye (34) lateral surface on described rear end cap (30) has bonnet concave station face (75), bonnet concave station face (75) there are five to six bonnet screws (65), described bearing bonnet (33) have five to six bonnet through holes corresponding with described bonnet screw (65); There is between described bonnet concave station face (75) and described bonnet dead eye (34) the perpendicularity relation of seven grades of tolerance grades.
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| CN201510008055.1A CN104467278B (en) | 2015-01-08 | 2015-01-08 | A kind of evanohm disc type vee-pulley motor |
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| CN104467278B CN104467278B (en) | 2017-03-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003584A (en) * | 2015-06-03 | 2015-10-28 | 温州经济技术开发区滨海志杰机电产品设计工作室 | Tungsten alloy union piston offshore oil well auxiliary power device |
| CN105040361A (en) * | 2015-06-30 | 2015-11-11 | 温州经济技术开发区滨海志杰机电产品设计工作室 | Manganese alloy disc type motor, clamp and spring damping and rinsing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753284A (en) * | 2005-09-20 | 2006-03-29 | 沈阳工业大学 | Bistator single rotor disk type brushless double feed ulternating current electric motor |
| WO2013066475A2 (en) * | 2011-08-19 | 2013-05-10 | Aerovironment, Inc. | System for protecting a rotatable shaft of a motor from excessive bending moments |
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2015
- 2015-01-08 CN CN201510008055.1A patent/CN104467278B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753284A (en) * | 2005-09-20 | 2006-03-29 | 沈阳工业大学 | Bistator single rotor disk type brushless double feed ulternating current electric motor |
| WO2013066475A2 (en) * | 2011-08-19 | 2013-05-10 | Aerovironment, Inc. | System for protecting a rotatable shaft of a motor from excessive bending moments |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003584A (en) * | 2015-06-03 | 2015-10-28 | 温州经济技术开发区滨海志杰机电产品设计工作室 | Tungsten alloy union piston offshore oil well auxiliary power device |
| CN105040361A (en) * | 2015-06-30 | 2015-11-11 | 温州经济技术开发区滨海志杰机电产品设计工作室 | Manganese alloy disc type motor, clamp and spring damping and rinsing device |
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| CN104467278B (en) | 2017-03-15 |
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Denomination of invention: A chromium alloy disc V-belt pulley motor Effective date of registration: 20211216 Granted publication date: 20170315 Pledgee: Zhejiang Pinghu Rural Commercial Bank Co.,Ltd. Huanggu sub branch Pledgor: Pinghu golden Rabbit Industry Co.,Ltd. Registration number: Y2021330002535 |
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