CN104539094A - Flame-proof type nickel alloy flat-belt pulley motor - Google Patents
Flame-proof type nickel alloy flat-belt pulley motor Download PDFInfo
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- CN104539094A CN104539094A CN201510007841.XA CN201510007841A CN104539094A CN 104539094 A CN104539094 A CN 104539094A CN 201510007841 A CN201510007841 A CN 201510007841A CN 104539094 A CN104539094 A CN 104539094A
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- flat
- hole
- belt pulley
- bearing
- ring
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Links
- 229910000990 Ni alloy Inorganic materials 0.000 title claims abstract description 32
- 210000004907 gland Anatomy 0.000 claims abstract description 65
- 238000009434 installation Methods 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 239000011651 chromium Substances 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 229910052748 manganese Inorganic materials 0.000 claims description 7
- 239000011572 manganese Substances 0.000 claims description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 229910052721 tungsten Inorganic materials 0.000 claims description 7
- 239000011701 zinc Substances 0.000 claims description 7
- 229910052725 zinc Inorganic materials 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 239000005864 Sulphur Substances 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract 3
- 238000007789 sealing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 241000555745 Sciuridae Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000003321 amplification Effects 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
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000012545 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
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Pulleys (AREA)
Abstract
The invention relates to a motor which is specially used in the field of energy industry. A flame-proof type nickel alloy flat-belt pulley motor comprises a motor case, a front end cover, a rear end cover, a motor spindle, a lead port, a stator, a rotor and a flat-belt pulley. A front cover bearing hole of the front end cover is fixedly provided with a front bearing outer circle. A front bearing section of the motor spindle is fixed in a front bearing inner hole. A rear cover center hole of the rear end cover is fixedly provided with a rear bearing outer circle, a rear bearing section of the motor spindle is fixed in a rear bearing inner hole, the rear end of the rear bearing section is provided with the tail end of the motor spindle, motor impellers are fixed on the tail end of the motor spindle, and an outer cover of the impellers is fixed on the outer circle of the rear end cover. The flame-proof type nickel alloy flat-belt pulley motor is characterized in that gland flanges are arranged between the lead port and a wiring port base on the motor case, the grand flanges fix a sealing hole ring in a port base inner hole of the wiring port base, the front end cover is fixedly provided with separation components, bearings without inner rings are arranged between the separation components and the flat-belt pulley, and nickel alloy hard wear-resisting layers are arranged on the surfaces of component supporting circles of the separation components.
Description
Technical field
The present invention relates to a kind of energy industry domain-specific motor, have dual rigors to dimensional space and useful life, be specifically related to a kind of flame-proof type nickel alloy flat-belt pulley motor.
Background technology
In recent years, air compressor in oil, coal, chemical industry development rapidly.And motor is the heart of air compressor, common electric machine oneself can not meet the requirement being used in air compressor in oil, coal, chemical industry.And common explosion proof motor is very large because of what must do by its connection jaws seat of constraint of electric clearance and creepage distance.By the impact of the restriction of air compressor inner space and wiring, winding displacement.Install common flame-proof type explosion-proof motor and must amplify compressor inner space, and then the machine volume of compressor also will amplify further, the installing space of final air compressor also will increase.This not only wastes material, improves cost, and installation and maintenance are also inconvenient.In addition, squirrel cage motor is except exporting with associated mode, and electric machine main shaft only bears pure torsion.That the torsional forces mode being attended by radial moment of flexure exports, as flat tyre wheel etc. time more.When equal-wattage and rotating speed, the electric machine main shaft diameter of carrying bending synthesis is that more than the twice of the electric machine main shaft diameter of carrying pure torsion just can guarantee there are enough coefficient of safetys.Therefore, in order to allow electric machine main shaft bear bending moment force, have to electric machine main 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
For the deficiency that prior art exists, the object of this invention is to provide a kind of good seal performance, a kind of flame-proof type nickel alloy flat-belt pulley motor that security performance is high, and electric machine main shaft only bears pure torsion, set up insulating element 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 such as underwater operation equipment such as submarine.
To achieve these goals, the present invention realizes by the following technical solutions: a kind of flame-proof type nickel alloy flat-belt pulley motor, comprise motor housing, front end housing, rear end cap, electric machine main shaft, pin interfaces, stator, rotor and flat-belt pulley, described stator is fixed on described motor housing endoporus, described rotor is fixed on described electric machine main shaft maximum gauge place and corresponding with described position of stator, described front end housing there is front screw be fixed on described motor housing front end face, the Front Cover Bearing hole of described front end housing is fixed wtih fore bearing cylindrical, fore bearing endoporus is fixed wtih the fore bearing section of described electric machine main shaft, described rear end cap there is rear screw be fixed on described motor housing rear end face, the bonnet centre bore of described rear end cap is fixed wtih rear bearing cylindrical, rear bearing endoporus is fixed wtih the rear bearing section of described electric machine main shaft, there is main shaft end rear bearing section rear end, main shaft end is fixed wtih motor blower fan, and fan blade outer cover is fixed on described rear end cap cylindrical, installation sole is had below described motor housing, install between sole and described motor housing and have reinforced company's muscle, described installation sole there is installation through hole, it is characterized in that: have gland flange between the connection jaws seat on described pin interfaces and described motor housing, closed hole circle is fixed in the mouth seat endoporus of described connection jaws seat by gland flange, described front end housing is fixed with insulating element, has no inner-ring bearing between insulating element and described flat-belt pulley, the outer bearing of described insulating element supports circular surfaces has a layer thickness to be the nickel alloy hard wear-resistant layer of 0.31 to 0.39 millimeter.
As further improvement: described connection jaws seat has mouth seat flange mouth seat endoporus is suitable for reading, and described connection jaws seat has endoporus shoulder block bottom mouth seat endoporus, and endoporus shoulder block center has between wiring through hole and described mouth seat endoporus and has axiality; Described gland flange outer rim has gland through hole corresponding with the screw on described mouth seat flange, the inner face of described gland flange having between gland boss and described mouth seat endoporus is matched in clearance; Described gland flange center has the inner external screw thread of gland inner bolt hole and described pin interfaces to match; The first pad, closed hole circle and the second pad is had successively between described endoporus shoulder block and described gland boss; First pad is placed on bottom mouth seat endoporus and againsts endoporus shoulder block, put into closed hole circle and the second pad more successively, mouth seat endoporus described in gland boss in gland flange is aimed at, two to three gland bolts pass through the gland through hole in described gland flange outer rim and the screw on mouth seat flange is tightened, and airtightly after making closed hole circle compressive deformation hold cable tightly.
As further improvement: have rotational clearance between the component inner bore of step of described insulating element and overhanging section of the main shaft of described electric machine main shaft, the outer bearing of described insulating element 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 flat tyre wheel stepped hole inner round wall of described flat-belt pulley, described flat tyre wheel stepped hole bottom surface there is the axis for spline tooth circumferential engagement between flat tyre wheel splined hole and the axle head spline on described electric machine main shaft slidably coordinate, 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 flat tyre wheel splined hole, then the axial displacement of described flat-belt 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 flat tyre wheel 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 flat-belt pulley cylindrical has flat rubber belting cambered surface, described flat-belt pulley outer face there is flat tyre wheel end face screw, described flat tyre wheel stepped hole there are flat tyre wheel escape and flat tyre wheel draw-in groove, in flat tyre wheel draw-in groove, activity is combined with flat rubber belting wheel bore snap ring, described position, flat tyre wheel stepped hole base angle is placed with flat tyre wheel adjusting ring, and described both sides, needle roller outer ring against described flat rubber belting wheel bore snap ring and described flat tyre wheel adjusting ring respectively.
As further improvement: described insulating element there is 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; Between described protecgulum concave station face and described Front Cover Bearing hole, there is perpendicularity relation.
As further improvement: the material of described nickel alloy hard wear-resistant layer is made up of the element of following percentage by weight: Ni(nickel): 12 ~ 13%, Cu(copper): 6 ~ 7%, Cr(chromium): 5 ~ 6%, Mo(molybdenum): 4 ~ 5%, Zn(zinc): 3 ~ 4%, W (tungsten): 2.4 ~ 2.6%, C(carbon): 1.1 ~ 1.3%, 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 nickel alloy hard wear-resistant layer is: Rockwell hardness HRC value is 54 ~ 56.
The present invention has following beneficial effect:
Connection jaws seat in the present invention has mouth seat flange mouth seat endoporus is suitable for reading, and connection jaws seat has endoporus shoulder block bottom mouth seat endoporus, and endoporus shoulder block center has between wiring through hole and mouth seat endoporus and has axiality; Gland flange outer rim has gland through hole corresponding with the screw on mouth seat flange, the inner face of gland flange having between gland boss and mouth seat endoporus is matched in clearance; Gland flange center has the inner external screw thread of gland inner bolt hole and pin interfaces to match; Have the first pad, closed hole circle and the second pad between endoporus shoulder block and gland boss successively, above-mentioned outlet structure is applicable to the outlet of explosion-proof motor, have safe and reliable to operation, Installation and Debugging convenient, save air compressor machine inner space, winding displacement facilitates advantage;
Among insulating element in the present invention, outside component flange, outer bearing props up to hold round have high accuracy axiality between component for adjusting ring cylindrical; Said structure achieves electric machine main shaft and fore bearing and rear bearing only need bear pure torsion, and the radial load that flat belt produces react to flat-belt pulley be can completely bear by no inner-ring bearing, only act on insulating element, overhanging section of main shaft on completely isolated electric machine main shaft bears radial load; 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 electric machine main shaft, meanwhile, because insulating element 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.
Motor front end cover arranges insulating element, and shared all moment of flexure loads, made electric machine main shaft only bear pure torsion, the electric machine main shaft diameter under equal-wattage can reduce half, finally realizes motor entirety and has breakthrough compact; The outer bearing of insulating element supports circular surfaces has a layer thickness to be the nickel alloy hard wear-resistant layer of 0.31 to 0.39 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 connection jaws seat 75 enlarged local section schematic diagram in Fig. 1.
Fig. 3 is the gland flange 17 enlarged local section schematic diagram in Fig. 2.
Fig. 4 is the enlarged local section schematic diagram at position residing for insulating element 80 in Fig. 1 and flat-belt pulley 90.
Fig. 5 is local amplification profile schematic diagram again in Fig. 4.
Fig. 6 is flat-belt pulley 90 1 end view in Fig. 4.
Fig. 7 is the flat-belt pulley 90 enlarged local section schematic diagram in Fig. 4.
Fig. 8 is the front end housing 20 enlarged local section schematic diagram in Fig. 1.
Fig. 9 is the insulating element 80 enlarged local section schematic diagram in Fig. 2.
Figure 10 is the generalized section that insulating element 80 is processed by special fixtures 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 flame-proof type nickel alloy flat-belt pulley motor, comprise motor housing 10, front end housing 20, rear end cap 30, electric machine main shaft 40, pin interfaces 50, stator 51, rotor 52 and flat-belt pulley 90, stator 51 is fixed on motor housing 10 endoporus, rotor 52 is fixed on electric machine main shaft 40 maximum gauge place and corresponding with stator 51 position, front end housing 20 there is front screw 21 be fixed on motor housing 10 front end face, 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 electric machine main shaft 40; Rear end cap 30 there is rear screw 31 be fixed on motor housing 10 rear end face, the bonnet centre bore 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 electric machine main shaft 40, there is main shaft end 33 rear bearing section 43 rear end, main shaft end 33 is fixed wtih motor blower fan 32, fan blade outer cover 12 is fixed on rear end cap 30 cylindrical; Have below motor housing 10 and sole 11 is installed, install between sole 11 and motor housing 10 and have reinforced company's muscle 13, install on sole 11 and have installation through hole 14, it is characterized in that: have gland flange 17 between the connection jaws seat 75 on pin interfaces 50 and motor housing 10, closed hole circle 67 is fixed in the mouth seat endoporus 79 of connection jaws seat 75 by gland flange 17; Front end housing 20 is fixed with insulating element 80, has no inner-ring bearing 60 between insulating element 80 and flat-belt pulley 90; The outer bearing of insulating element 80 props up and holds round 89 surfaces and have a layer thickness to be the nickel alloy hard wear-resistant layer of 0.31 to 0.39 millimeter.
As further improvement: connection jaws seat 75 has mouth seat flange 78 mouth seat endoporus 79 is suitable for reading, and connection jaws seat 75 has endoporus shoulder block 22 bottom mouth seat endoporus 79, and endoporus shoulder block 22 center has between wiring through hole 23 and mouth seat endoporus 79 and has axiality; Gland flange 17 outer rim has gland through hole 37 corresponding with the screw on mouth seat flange 78, the inner face of gland flange 17 having between gland boss 39 and mouth seat endoporus 79 is matched in clearance; Gland flange 17 center has gland inner bolt hole 38 to match with the inner external screw thread of pin interfaces 50; The first pad 19, closed hole circle 67 and the second pad 18 is had successively between endoporus shoulder block 22 and gland boss 39; First pad 19 is placed on bottom mouth seat endoporus 79 and againsts endoporus shoulder block 22, put into closed hole circle 67 and the second pad 18 more successively, gland boss 39 in gland flange 17 is aimed at mouth seat endoporus 79, the gland through hole 37 that two to three gland bolts 88 pass through in gland flange 17 outer rim is tightened with the screw on mouth seat flange 78, airtightly after making closed hole circle 67 compressive deformation holds cable 55 tightly.
As further improvement: have rotational clearance 48 between the component inner bore of step 84 of insulating element 80 and overhanging section 46, the main shaft of electric machine main shaft 40, the outer bearing of insulating element 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 flat tyre wheel stepped hole 96 inner round wall of flat-belt pulley 90, flat tyre wheel stepped hole 96 bottom surface there is the axis for spline tooth circumferential engagement between flat tyre wheel splined hole 94 and the axle head spline 49 on electric machine main shaft 40 slidably coordinate, 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 flat tyre wheel splined hole 94, then the axial displacement of flat-belt 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 flat tyre wheel 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: flat-belt pulley 90 cylindrical has flat rubber belting cambered surface 99, flat-belt pulley 90 outer face there is flat tyre wheel end face screw 97, flat tyre wheel stepped hole 96 there are flat tyre wheel escape 93 and flat tyre wheel draw-in groove 98, in flat tyre wheel draw-in groove 98, activity is combined with flat rubber belting wheel bore snap ring 91, position is placed with flat tyre wheel adjusting ring 92 at flat tyre wheel stepped hole 96 base angle, and both sides, needle roller outer ring 69 against flat rubber belting wheel bore snap ring 91 and flat tyre wheel adjusting ring 92 respectively.
As further improvement: insulating element 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 insulating element 80 on protecgulum concave station face 29; Between protecgulum concave station face 29 and Front Cover Bearing hole 24, there is perpendicularity relation.
As further improvement: the material of nickel alloy hard wear-resistant layer is made up of the element of following percentage by weight: Ni(nickel): 12 ~ 13%, Cu(copper): 6 ~ 7%, Cr(chromium): 5 ~ 6%, Mo(molybdenum): 4 ~ 5%, Zn(zinc): 3 ~ 4%, W (tungsten): 2.4 ~ 2.6%, C(carbon): 1.1 ~ 1.3%, 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 nickel alloy hard wear-resistant layer is: Rockwell hardness HRC value is 54 ~ 56.
In embodiment, 8 front screws 21 match with the end face screw of motor housing 10 front end face, front end housing 20 are fixed on motor housing 10 front end face; After 8, screw 31 matches with the end face screw of motor housing 10 rear end face, rear end cap 30 is fixed on motor housing 10 rear end face.
The outer bearing of insulating element 80 props up and holds round 89 surfaces and have a layer thickness to be the nickel alloy hard wear-resistant layer of 0.35 millimeter.
The material of nickel alloy hard wear-resistant layer is made up of the element of following percentage by weight: Ni:12.5%, Cu:6.5%, Cr:5.5%, Mo:4.5%, Zn:3.5%, W:2.5%, C:1.2%, and surplus is Fe and inevitable impurity; The weight percent content of described impurity is: Sn is 0.04%, Si is 0.17%, Mn is 0.21%, S is 0.008%, P is 0.012%; The material Specifeca tion speeification of nickel alloy hard wear-resistant layer is: every cubic centimetre of density is 8.2 grams; Rockwell hardness HRC value is 55.
A key technology of the present invention is: connection jaws seat 75 has mouth seat flange 78 mouth seat endoporus 79 is suitable for reading, and connection jaws seat 75 has endoporus shoulder block 22 bottom mouth seat endoporus 79, and endoporus shoulder block 22 center has between wiring through hole 23 and mouth seat endoporus 79 and has axiality; Gland flange 17 outer rim has gland through hole 37 corresponding with the screw on mouth seat flange 78, the inner face of gland flange 17 having between gland boss 39 and mouth seat endoporus 79 is matched in clearance; Gland flange 17 center has gland inner bolt hole 38 to match with the inner external screw thread of pin interfaces 50; The first pad 19, closed hole circle 67 and the second pad 18 is had successively between endoporus shoulder block 22 and gland boss 39.
Another key technology of the present invention is: among insulating element 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 0.001 millimeter.Prop up to hold round between 89 and component for adjusting ring 82 cylindrical in order to ensure the outer bearing on insulating element 80 and there is high accuracy axiality, adopt following process steps:
One, special fixtures set-up procedure:
(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), insulating element 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 0.2 to 0.3 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, copper alloy hard wear-resistant material is sprayed to outer bearing and prop up and hold 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 insulating element 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 insulating element 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 0.001 millimeter.
Four, overall package:
Stator 51 is fixed on motor housing 10 endoporus, rotor 52 is fixed on electric machine main shaft 40 maximum gauge place and corresponding with stator 51 position, with eight front screws 21, front end housing 20 is fixed on the protecgulum concave station face 29 of motor housing 10, 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 electric machine main shaft 40;
With other eight front screws 21, rear end cap 30 is fixed on motor housing 10 rear end face, the bonnet centre bore 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 electric machine main shaft 40, cable 55 passes through the pin interfaces 50 be positioned on rear end cap 30, can be connected to external control power supply;
The committed step of assembling comprises:
(1) insulating element 80 is installed
By the component for adjusting ring 82 on insulating element 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 insulating element 80, component flange 87 on insulating element 80 is close to fixing with the protecgulum concave station face 29 on front end housing 20, makes the rotational clearance 48 having a millimeter between main shaft overhanging section of 46 outlines of the component inner bore of step 84 on insulating element 80 and electric machine main shaft 40.
(2) needle roller outer ring 69 is installed
No inner-ring bearing 60 selects RNA type separate type no inner-ring bearing.
First flat tyre wheel adjusting ring 92 matched in clearance being put among the flat tyre wheel stepped hole 96 on flat-belt pulley 90 and crossing flat tyre wheel escape 93 is attached on flat rubber belting wheel bore bottom surface 95; Again needle roller outer ring 69 interference on no inner-ring bearing 60 0.01 millimeter is coordinated among the flat tyre wheel stepped hole 96 on press-in flat-belt pulley 90, again flat rubber belting wheel bore snap ring 91 is put into flat tyre wheel draw-in groove 98 with specific purpose tool, make both sides, needle roller outer ring 69 against flat rubber belting wheel bore snap ring 91 and flat tyre wheel adjusting ring 92 respectively.
(3) connection between flat-belt pulley 90 and electric machine main shaft 40
The needle roller outer ring 69 be fixed on flat-belt 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 flat-belt pulley 90, flat tyre wheel splined hole 94 on flat-belt pulley 90 is aimed at the axle head spline 49 on electric machine main shaft 40 match, continue pushing flat-belt 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 electric machine main 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 flat tyre wheel end face screw 97 on flat-belt 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 flat-belt pulley 90 outer face;
Also match with the flat tyre wheel end face screw 97 on flat-belt 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 electric machine main shaft 40, and the flat tyre wheel splined hole 94 on flat-belt pulley 90 passes to the flat rubber belting cambered surface 99 on flat-belt pulley 90, realizes moment of torsion and exports.
The present invention has following outstanding substantive distinguishing features and significant progressive effect:
Connection jaws seat 75 in the present invention has mouth seat flange 78 mouth seat endoporus 79 is suitable for reading, and connection jaws seat 75 has endoporus shoulder block 22 bottom mouth seat endoporus 79, and endoporus shoulder block 22 center has between wiring through hole 23 and mouth seat endoporus 79 and has axiality; Gland flange 17 outer rim has gland through hole 37 corresponding with the screw on mouth seat flange 78, the inner face of gland flange 17 having between gland boss 39 and mouth seat endoporus 79 is matched in clearance; Gland flange 17 center has gland inner bolt hole 38 to match with the inner external screw thread of pin interfaces 50; The first pad 19, closed hole circle 67 and the second pad 18 is had successively between endoporus shoulder block 22 and gland boss 39, above-mentioned outlet structure is applicable to the outlet of explosion-proof motor, have safe and reliable to operation, Installation and Debugging convenient, save air compressor machine inner space, winding displacement facilitates advantage.
Table 1 be present invention employs insulating element fore bearing after 80s 25 the fore bearing section 45 radius run-out degree micron of electric machine main shaft 40 fixed with do not adopt the fore bearing 2 of the constant power motor of insulating element 80 the experimental data of the fore bearing section 45 radius run-out degree micron of electric machine main 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 insulating element, 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 electric machine main shaft 40 fixed more stable.
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 nickel alloy hard wear-resistant layer and the outer bearing of 0.31 to 0.39 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 nickel alloy hard wear-resistant layer of 0.31 to 0.39 millimeter compare.
The outer bearing of table 2 insulating element 80 props up and holds round 89 surface abrasion data and compare
Contrasting data from table 2 can draw: the outer bearing of insulating element 80 props up and holds round 89 surfaces and have a layer thickness to be the nickel alloy hard wear-resistant layer of 0.31 to 0.39 millimeter, possesses superpower resistance to wear.
Among insulating element 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 0.001 millimeter.Prop up to hold round between 89 and component for adjusting ring 82 cylindrical in order to ensure the outer bearing on insulating element 80 and there is high accuracy axiality.
Said structure achieves electric machine main shaft 40 and fore bearing 25 and rear bearing 35 need and bears pure torsion, and the radial load that flat belt produces react to flat-belt pulley 90 be can completely bear by no inner-ring bearing 60, only act on insulating element 80, the main shaft on completely isolated electric machine main shaft 40 bears radial load for overhanging section 46; Owing to meeting under the prerequisite of rated power, can accomplish that the limit is little by asking the diameter of electric machine main shaft 40 in design, only bearing pure torsion, simultaneously, because insulating element 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.
Claims (7)
1. a flame-proof type nickel alloy flat-belt pulley motor, comprise motor housing (10), front end housing (20), rear end cap (30), electric machine main shaft (40), pin interfaces (50), stator (51), rotor (52) and flat-belt pulley (90), described stator (51) is fixed on described motor housing (10) endoporus, described rotor (52) is fixed on described electric machine main shaft (40) maximum gauge place and corresponding with described stator (51) position, described front end housing (20) there is front screw (21) be fixed on described motor housing (10) front end face, the Front Cover Bearing hole (24) of described front end housing (20) is fixed wtih fore bearing (25) cylindrical, fore bearing (25) endoporus is fixed wtih the fore bearing section (45) of described electric machine main shaft (40), described rear end cap (30) there is rear screw (31) be fixed on described motor housing (10) rear end face, the bonnet centre bore (34) of described rear end cap (30) is fixed wtih rear bearing (35) cylindrical, rear bearing (35) endoporus is fixed wtih the rear bearing section (43) of described electric machine main shaft (40), there is main shaft end (33) rear bearing section (43) rear end, main shaft end (33) is fixed wtih motor blower fan (32), fan blade outer cover (12) is fixed on described rear end cap (30) cylindrical, there is installation sole (11) described motor housing (10) below, install between sole (11) and described motor housing (10) and have reinforced company's muscle (13), described installation sole (11) there is installation through hole (14), it is characterized in that: have gland flange (17) between the connection jaws seat (75) on described pin interfaces (50) and described motor housing (10), closed hole circle (67) is fixed in the mouth seat endoporus (79) of described connection jaws seat (75) by gland flange (17), described front end housing (20) is fixed with insulating element (80), has no inner-ring bearing (60) between insulating element (80) and described flat-belt pulley (90), the outer bearing of described insulating element (80) props up and holds round (89) surface and have a layer thickness to be the nickel alloy hard wear-resistant layer of 0.31 to 0.39 millimeter.
2. a kind of flame-proof type nickel alloy flat-belt pulley motor according to claim l, it is characterized in that: described connection jaws seat (75) has mouth seat flange (78) mouth seat endoporus (79) is suitable for reading, described connection jaws seat (75) has endoporus shoulder block (22) in mouth seat endoporus (79) bottom, and endoporus shoulder block (22) center has between wiring through hole (23) and described mouth seat endoporus (79) and has axiality; Described gland flange (17) outer rim has gland through hole (37) corresponding with the screw on described mouth seat flange (78), the inner face of described gland flange (17) having between gland boss (39) and described mouth seat endoporus (79) is matched in clearance; Described gland flange (17) center has gland inner bolt hole (38) to match with described pin interfaces (50) inner external screw thread; The first pad (19), closed hole circle (67) and the second pad (18) is had successively between described endoporus shoulder block (22) and described gland boss (39); First pad (19) is placed on mouth seat endoporus (79) bottom and againsts endoporus shoulder block (22), put into closed hole circle (67) and the second pad (18) more successively, mouth seat endoporus (79) described in gland boss (39) in gland flange (17) is aimed at, the gland through hole (37) that two to three gland bolts (88) are passed through in described gland flange (17) outer rim is tightened with the screw on mouth seat flange (78), airtightly after making closed hole circle (67) compressive deformation holds cable (55) tightly.
3. a kind of flame-proof type nickel alloy flat-belt pulley motor according to claim l, it is characterized in that: between the component inner bore of step (84) of described insulating element (80) and overhanging section of the main shaft (46) of described electric machine main shaft (40), have rotational clearance (48), the outer bearing of described insulating element (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 flat tyre wheel stepped hole (96) inner round wall of described flat-belt pulley (90), described flat tyre wheel stepped hole (96) bottom surface there is the axis for spline tooth circumferential engagement between flat tyre wheel splined hole (94) and the axle head spline (49) on described electric machine main shaft (40) slidably coordinate, 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 flat tyre wheel splined hole (94) outer transverse plane, then the axial displacement of described flat-belt pulley (90) is limited.
4. a kind of flame-proof type nickel alloy flat-belt 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 flat tyre wheel 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 flame-proof type nickel alloy flat-belt pulley motor according to claim 3, it is characterized in that: described flat-belt pulley (90) cylindrical has flat rubber belting cambered surface (99), described flat-belt pulley (90) outer face there is flat tyre wheel end face screw (97), described flat tyre wheel stepped hole (96) there are flat tyre wheel escape (93) and flat tyre wheel draw-in groove (98), in flat tyre wheel draw-in groove (98), activity is combined with flat rubber belting wheel bore snap ring (91), described flat tyre wheel stepped hole (96) position, base angle is placed with flat tyre wheel adjusting ring (92), described needle roller outer ring (69) both sides against described flat rubber belting wheel bore snap ring (91) and described flat tyre wheel adjusting ring (92) respectively.
6. a kind of flame-proof type nickel alloy flat-belt pulley motor according to claim 3, it is characterized in that: described insulating element (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); Between described protecgulum concave station face (29) and described Front Cover Bearing hole (24), there is perpendicularity relation.
7. a kind of flame-proof type nickel alloy flat-belt pulley motor according to claim l, it is characterized in that: the material of described nickel alloy hard wear-resistant layer is made up of the element of following percentage by weight: Ni(nickel): 12 ~ 13%, Cu(copper): 6 ~ 7%, Cr(chromium): 5 ~ 6%, Mo(molybdenum): 4 ~ 5%, Zn(zinc): 3 ~ 4%, W (tungsten): 2.4 ~ 2.6%, C(carbon): 1.1 ~ 1.3%, 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 nickel alloy hard wear-resistant layer is: Rockwell hardness HRC value is 54 ~ 56.
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| CN201510007841.XA CN104539094B (en) | 2015-01-08 | 2015-01-08 | Flame-proof type nickel alloy flat-belt pulley motor |
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| CN201510007841.XA CN104539094B (en) | 2015-01-08 | 2015-01-08 | Flame-proof type nickel alloy flat-belt pulley motor |
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| CN104539094B CN104539094B (en) | 2017-01-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108352756A (en) * | 2015-11-09 | 2018-07-31 | 日本电产三协株式会社 | Motor |
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| EP0523353A1 (en) * | 1991-07-10 | 1993-01-20 | Mitsubishi Denki Kabushiki Kaisha | Heat resistant and explosion-proof type permanent magnetic synchronous motor |
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| CN202183684U (en) * | 2011-08-11 | 2012-04-04 | 南阳防爆集团股份有限公司 | Explosion-proof three-phase asynchronous motor integrated with speed reducer |
| CN103633802A (en) * | 2013-11-29 | 2014-03-12 | 南阳防爆集团股份有限公司 | Flameproof permanent magnetic synchronous power generator |
| CN203656142U (en) * | 2013-12-31 | 2014-06-18 | 黄山市永丰机电制造有限公司 | Anti-bending moment mechanism for transmission shaft |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0523353A1 (en) * | 1991-07-10 | 1993-01-20 | Mitsubishi Denki Kabushiki Kaisha | Heat resistant and explosion-proof type permanent magnetic synchronous motor |
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| CN201994808U (en) * | 2011-01-14 | 2011-09-28 | 广州三业科技有限公司 | Explosion suppression type explosion-proof generator |
| CN202183684U (en) * | 2011-08-11 | 2012-04-04 | 南阳防爆集团股份有限公司 | Explosion-proof three-phase asynchronous motor integrated with speed reducer |
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| CN203656142U (en) * | 2013-12-31 | 2014-06-18 | 黄山市永丰机电制造有限公司 | Anti-bending moment mechanism for transmission shaft |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108352756A (en) * | 2015-11-09 | 2018-07-31 | 日本电产三协株式会社 | Motor |
| EP3376643A4 (en) * | 2015-11-09 | 2019-06-12 | Nidec Sankyo Corporation | Motor |
| CN108352756B (en) * | 2015-11-09 | 2020-04-10 | 日本电产三协株式会社 | Electric motor |
| US10651705B2 (en) | 2015-11-09 | 2020-05-12 | Denso Corporation | Motor |
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Address after: 325700 Zhejiang Province, Wenzhou city Dongtou District North Ao Street fragrant Road No. 1 Electronic Technology Park A1 building fifth room 515 Applicant after: Zhang Zhixiong Address before: Lucheng District of Wenzhou city Zhejiang province 325000 Lotus Street Park sleep room 90-5-106 Applicant before: Zhang Zhixiong |
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Effective date of registration: 20171220 Address after: 523000 No. 1, No. two lane, Lane 13, Xi Niu Bei Village, Dalang Town, Dongguan City, Guangdong Patentee after: Dongguan peak Hardware & Electronics Co., Ltd. Address before: 325700 Zhejiang Province, Wenzhou city Dongtou District North Ao Street fragrant Road No. 1 Electronic Technology Park A1 building fifth room 515 Patentee before: Zhang Zhixiong |
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