CN204361839U - A kind of flame-proof type disc type flat-belt pulley motor - Google Patents

A kind of flame-proof type disc type flat-belt pulley motor Download PDF

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Publication number
CN204361839U
CN204361839U CN201520010411.9U CN201520010411U CN204361839U CN 204361839 U CN204361839 U CN 204361839U CN 201520010411 U CN201520010411 U CN 201520010411U CN 204361839 U CN204361839 U CN 204361839U
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flat
bearing
ring
cap
stator
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CN201520010411.9U
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张志雄
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张志雄
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Abstract

The utility model relates to a kind of motor train unit locomotive definite purpose motor, a kind of flame-proof type disc type flat-belt pulley motor, as improvement: meet lead outlet place in motor housing and be fixedly connected with junction box seat, wired box end cap on junction box seat outer end, fairlead seat is positioned on line box end cap, and external lead wire passes through fairlead seat; Front stator and rear stator formed by stator core and armature winding, rotor is made up of six rotor cores and the permanent magnet be arranged between adjacent rotor iron core, rotor is arranged on rotor field spider, and rotor field spider is fixedly connected on the maximum gauge place on machine shaft; Rear stator is fixedly connected on the inner face of rear end cap, and front stator is fixedly connected on the inner face of front end housing, and rotor is between rear stator and front stator; Rear end cap is equipped with bearing bonnet, bearing bonnet is fixed by screws on rear end cap, and bearing bonnet the inner is stretched into the bonnet dead eye on rear end cap and props up rear bearing.

Description

A kind of flame-proof type disc type flat-belt pulley motor
Technical field
The utility model relates to a kind of motor train unit locomotive definite purpose motor, has dual rigors to dimensional space and useful life, is specifically related to a kind of flame-proof type disc type flat-belt 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.In the structure of ventional disc motor, the utilance of single Stator winding wires is extremely low, and the wire insertion technology of bimorph transducer winding is complicated, and especially the stator winding of micro-machine cannot be implemented substantially; The structure of traditional pillar motor in addition, magnetic circuit has " bottleneck effect ", and saturation point is low, and the utilance of winding is very low, and cause generator can not obtain maximum electromotive force, motor can not obtain maximum magnetic flux kinetic potential.The explosion separation motor of current use arranges explosion-insulation surface, does not tackle the problem at its root, and flame proof poor effect, easily reveals, poor safety performance.In addition, three-phase disc type asynchronous 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: flat-belt 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 in the utility model is to provide a kind of flame-proof type disc type flat-belt pulley motor, machine shaft only bears pure torsion, set up bending resistance square 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 utility model realizes by the following technical solutions:
A kind of flame-proof type disc type flat-belt pulley motor, comprise motor housing, front end housing, rear end cap, rotor field spider, machine shaft, fore bearing, rear bearing, permanent magnet, front stator and rear stator and flat-belt pulley, as improvement: meet lead outlet place in described motor housing and be fixedly connected with junction box seat, wired box end cap on junction box seat outer end, fairlead seat is positioned on described line box end cap, and external lead wire passes through described fairlead seat; Described front stator and described rear stator formed by stator core and armature winding, described rotor is made up of six rotor cores and the permanent magnet be arranged between adjacent rotor iron core, described rotor is installed on rotor field spider, and rotor field spider is fixedly connected on the maximum gauge place on described machine shaft; Described rear stator is fixedly connected on the inner face of described rear end cap, and described front stator is fixedly connected on the inner face of described front end housing, and described rotor is between described rear stator and front stator; Described rear end cap is equipped with bearing bonnet, described 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 bending resistance square component, described bending resistance square component is fixed on described front end housing by component screw, and the component for adjusting ring the inner on described bending resistance square component is stretched into the Front Cover Bearing hole on described front end housing and props up described fore bearing; No inner-ring bearing is had between described bending resistance square component outer end and described flat-belt pulley.
As further improvement: have rotational clearance between the component inner bore of step of described bending resistance square component and overhanging section of the rotating shaft of described machine shaft, the outer bearing of described bending resistance square 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 flat-belt pulley, described belt wheel stepped hole bottom surface there is the axis for spline tooth circumferential engagement between flat belt splined hole and the axle head spline on described machine 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 belt 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 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 flat-belt pulley cylindrical has flat rubber belting cambered surface, described flat-belt pulley outer face there is belt wheel end face screw, described belt wheel stepped hole there are belt wheel escape and flat tyre wheel draw-in groove, in flat tyre wheel draw-in groove, activity is combined with band wheel bore snap ring, described position, belt wheel stepped hole base angle is placed with flat tyre wheel adjusting ring, and described both sides, needle roller outer ring against described band wheel bore snap ring and described flat tyre wheel adjusting ring respectively.
As further improvement: described bending resistance square component has component flange, having inside component flange between component for adjusting ring cylindrical and described Front Cover Bearing hole is interference fits; Described 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: arrange wired box dividing plate in described junction box seat chamber, line box dividing plate described junction box seat is isolated into two along pipe range direction complete totally enclosed first cavity and the second cavity, line box dividing plate is provided with three connection bolts spaced apart, connection bolt wears connection box dividing plate, connection bolt two ends overhang respectively and are being positioned at the first cavity and second cavity of described line box dividing plate both sides, connect in described lead-in wire corresponding be connected to be positioned at the first cavity connection bolt on connect on termination; Internal thread on described line box end cap matches with the external screw thread on described fairlead seat, it is fixing by the extruding of described fairlead seat inner face that described line box end cap internal thread baseplane is provided with sealing ring, external lead wire after passing through runners circular hole on described fairlead seat and described sealing ring successively corresponding be connected to be positioned at the second cavity connection bolt on external termination on.
As further improvement: 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 machine shaft; Described rear end cap has rear screw be fixed on described motor housing rear end face, the bonnet dead eye of described rear end cap is fixed wtih rear bearing cylindrical, rear bearing endoporus is fixed wtih the rear bearing section of described machine shaft.
The utility model has following beneficial effect:
1, the rear stator described in the utility model employing is fixedly connected on the inner face of described rear end cap, and described front stator is fixedly connected on the inner face of described front end housing, and described rotor is between described rear stator and front stator; Particularly be fixed with bending resistance square component at described front end housing, have no inner-ring bearing between described bending resistance square component outer end and described flat-belt pulley, said structure can increase substantially energy converting between mechanical ability and the serviceability of motor.
2, on motor front end cover, arrange bending resistance square component, 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 bending resistance square member integrated shape belongs to hollow short tube, therefore structural rigidity is superpower, can bear larger radial load.Both combine, and the utility model 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, have employed the technical scheme that junction box seat is isolated into two complete totally enclosed first cavity and the second cavitys along pipe range direction by line box dividing plate, the interior lead-in wire that connects is connected on connection bolt and connects on termination, after external lead wire passes through runners circular hole on described fairlead seat and described sealing ring successively corresponding be connected to be positioned at the second cavity connection bolt on external termination on, because the two ends of connection bolt lay respectively in two airtight cavitys, so effectively can isolate the leakage of electric spark.Online box end cap internal thread baseplane is provided with sealing ring and carries out secondary isolation electric spark, and avoid electric spark to reveal further, flame proof is effective, and security performance is high.
Accompanying drawing explanation
Figure l is overall structure partial cutaway schematic of the present utility model.
Fig. 2 is the heavy gauge schematic diagram at position residing for bending resistance square component 80 in Fig. 1 and flat-belt pulley 90.
Fig. 3 is local amplification profile schematic diagram again in Fig. 2.
Fig. 4 is flat-belt pulley 90 1 end view in Fig. 2.
Fig. 5 is the flat-belt pulley 90 amplification profile schematic diagram in Fig. 2.
Front end housing 20 enlarged local section schematic diagram in Fig. 6 Fig. 1.
Fig. 7 is the bending resistance square component 80 amplification profile schematic diagram in Fig. 1.
Fig. 8 is the generalized section that bending resistance square component 80 is processed by special clamping apparatus clamping.
Fig. 9 is Fig. 8 left side view.
Figure 10 is the generalized section of left expansion set 15 in Fig. 8 or right expansion set 16.
Figure 11 is Figure 10 right side view.
Figure 12 is Figure 10 left side view.
Figure 13 is the junction box seat 13 enlarged local section schematic diagram in Fig. 1.
Figure 14 is fairlead seat 11 end view in Figure 13.
Embodiment
The utility model is described in detail below in conjunction with the drawings and specific embodiments;
A kind of flame-proof type disc type flat-belt pulley motor, comprise motor housing 10, front end housing 20, rear end cap 30, rotor field spider 32, machine shaft 40, fore bearing 25, rear bearing 35, permanent magnet 18, front stator 51 and rear stator 52 and flat-belt pulley 90, as improvement:
Connect lead-in wire 88 exit in described motor housing 10 and be fixedly connected with junction box seat 13, wired box end cap 14 on junction box seat 13 outer end, fairlead seat 11 is positioned on described line box end cap 14, and external lead wire 55 passes through described fairlead seat 11;
Described front stator 51 and described rear stator 52 formed by stator core 75 and armature winding 65, described rotor 50 is made up of six rotor cores 19 and the permanent magnet 18 be arranged between adjacent rotor iron core 19, described rotor 50 is installed on rotor field spider 32, and rotor field spider 32 is fixedly connected on the maximum gauge place on described machine shaft 40;
Described rear stator 52 is fixedly connected on the inner face of described rear end cap 30, and described front stator 51 is fixedly connected on the inner face of described front end housing 20, and described rotor 50 is between described rear stator 52 and front stator 51;
Described rear end cap 30 is equipped with bearing bonnet 33, and described 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 bending resistance square component 80, described bending resistance square component 80 is fixed on described front end housing 20 by component screw 28, and component for adjusting ring 82 the inner on described bending resistance square component 80 is stretched into the Front Cover Bearing hole 24 on described front end housing 20 and propped up described fore bearing 25; No inner-ring bearing 60 is had between described bending resistance square component 80 outer end and described flat-belt pulley 90.
As further improvement: have rotational clearance 48 between the component inner bore of step 84 of described bending resistance square component 80 and the rotating shaft of described machine shaft 40 overhanging section 46, the outer bearing of described bending resistance square 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 flat-belt pulley 90, described belt wheel stepped hole 96 bottom surface there is the axis for spline tooth circumferential engagement between flat belt splined hole 94 with the axle head spline 49 on described machine 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 the described outer transverse plane of flat belt splined hole 94, then the axial displacement of described flat-belt pulley 90 is limited.
As further improvement: 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 the described outer transverse plane of flat belt splined hole 94 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 bumper shoulder caps 73 of described step backing-up screw 74.
As further improvement: described flat-belt pulley 90 cylindrical has flat rubber belting cambered surface 99, described flat-belt pulley 90 outer face there is belt wheel end face screw 97, described belt wheel stepped hole 96 there are belt wheel escape 93 and flat tyre wheel draw-in groove 98, in flat tyre wheel draw-in groove 98, activity is combined with band wheel bore snap ring 91, described position, belt wheel stepped hole 96 base angle is placed with flat tyre wheel adjusting ring 92, and described both sides, needle roller outer ring 69 against described band wheel bore snap ring 91 and described flat tyre wheel adjusting ring 92 respectively.
As further improvement: described bending resistance square component 80 has component flange 87, having inside component flange 87 between component for adjusting ring 82 cylindrical and described Front Cover Bearing hole 24 is interference fits; Described component for adjusting ring 82 cylindrical and described outer bearing have axiality relation between propping up and holding round 89; Described 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, described component flange 87 has five to six component pillow holes 85 corresponding with described protecgulum screw 27; Component screw 28 passes through component pillow hole 85 and matches with protecgulum screw 27, is fixed on by bending resistance square component 80 on protecgulum concave station face 29; There is between described protecgulum concave station face 29 and described Front Cover Bearing hole 24 the perpendicularity relation of Pyatyi tolerance grade.
As further improvement: arrange wired box dividing plate 12 in described junction box seat 13 chamber, line box dividing plate 12 described junction box seat 13 is isolated into two along pipe range direction complete totally enclosed first cavity 78 and the second cavity 79, line box dividing plate 12 is provided with three connection bolts 17 spaced apart, connection bolt 17 wears connection box dividing plate 12, connection bolt 17 two ends overhang respectively and are being positioned at the first cavity 78 and the second cavity 79 of described line box dividing plate 12 both sides, connect in described lead-in wire 88 correspondence be connected to be positioned at the first cavity 78 connection bolt 17 on connect on termination 26, internal thread on described line box end cap 14 matches with the external screw thread on described fairlead seat 11, it is fixing by the extruding of described fairlead seat 11 inner face that described line box end cap 14 internal thread baseplane is provided with sealing ring 67, and after external lead wire 55 passes through runners circular hole 23 on described fairlead seat 11 and described sealing ring 67 successively, correspondence is connected on the external termination 36 on the connection bolt 17 being positioned at the second cavity 79.
As further improvement: 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 machine shaft 40; Described rear end cap 30 has rear screw 31 be fixed on described motor housing 10 rear end face, the bonnet dead eye 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 machine shaft 40.
In embodiment, below described motor housing 10, there is installation sole, install between sole and described motor housing 10 and have reinforced company's muscle.
Described front end housing 20 is fixed on described motor housing 10 front end face by the protecgulum housing hole 39 that 8 front screws 21 pass through on described front end housing 20, and described rear end cap 30 is fixed on described motor housing 10 rear end face by the bonnet housing hole 38 that after 8, screw 31 passes through on described rear end cap 30.
A key technology of the present utility model is: it is that the error of 100 millimeters of unit sizes is less than or equal to 0.01 millimeter that outer bearing described outside described component flange 87 among bending resistance square component 80 props up the axiality held round between 89 and component for adjusting ring 82 cylindrical.Prop up to hold round between 89 and component for adjusting ring 82 cylindrical in order to ensure the outer bearing on bending resistance square component 80 and there is high accuracy axiality, adopt following process steps:
One, special clamping apparatus 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 described fixture boss 63 and heart-shaped fixture 66 semicircle, fixture bolt 62 passes through described fixture screw 64 and the workpiece of different-diameter can be fixed on " V " font both sides of described heart-shaped fixture 66.
Two, roughing:
By bending resistance square component 80 according to the processing of drawing dimensional requirement, except holding member inner bore of step 84 is not processed, all the other dimensioned are to reserved 0.2 to 0.3 millimeter of fine grinding surplus.
Three, lapping process:
(1) the bending resistance square component 80 after roughing is carried 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 described fixture screw 64 and tightens and is fixed on " V " font both sides of described 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 bending resistance square 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, achieving key technology of the present utility model is that to prop up the axiality held round between 89 and component for adjusting ring 82 cylindrical be that the error of 100 millimeters of unit sizes is less than or equal to 0.01 millimeter to outer bearing described outside described component flange 87.
Four, critical component number of assembling steps:
(1) bending resistance square component 80 is installed
By the component for adjusting ring 82 on bending resistance square 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 described front end housing 20 with the component pillow hole 85 that component screw 28 passes through on bending resistance square component 80, component flange 87 on described bending resistance square component 80 is close to fixing with the protecgulum concave station face 29 on described 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 bending resistance square component 80 and machine 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 belt wheel stepped hole 96 on flat-belt pulley 90 and crossing belt wheel escape 93 is attached on band wheel bore bottom surface 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 flat-belt pulley 90, again band 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 band wheel bore snap ring 91 and flat tyre wheel adjusting ring 92 respectively.
(3) connection between flat-belt pulley 90 and machine 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 belt splined hole 94 on flat-belt pulley 90 is aimed at the axle head spline 49 on machine shaft 40 match, continue pushing flat-belt pulley 90, the overall and described 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 belt 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 belt 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 machine 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 utility model has following substantive distinguishing features and progressive effect:
Among bending resistance square 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.Prop up to hold round between 89 and component for adjusting ring 82 cylindrical in order to ensure the outer bearing on bending resistance square component 80 and there is high accuracy axiality, guarantee that machine shaft 40 and flat-belt pulley 90 also have axiality relation, realize flat-belt 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 flat-belt pulley 90 be can completely bear by no inner-ring bearing 60, only act on bending resistance square component 80, the rotating shaft that completely avoid on machine shaft 40 bears radial load for overhanging section 46.
Motor front end cover arranges bending resistance square 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 by asking the diameter of machine shaft 40 in design, only bearing pure torsion, simultaneously, because bending resistance square component 80 global shape belongs to hollow short tube, therefore structural rigidity is superpower, can bear larger radial load.Both combine, and the utility model 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.
The front end housing 20 of motor arranges bending resistance square 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 bending resistance square component 80 global shape belongs to hollow short tube, therefore structural rigidity is superpower, can bear larger radial load.Both combine, and the utility model 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.
Another key technology of the present utility model is: have employed the technical scheme that junction box seat 13 is isolated into two complete totally enclosed first cavity 78 and the second cavitys 79 along pipe range direction by line box dividing plate 12, the interior lead-in wire 88 that connects is connected on connection bolt 17 and connects on termination 26, after external lead wire 55 passes through runners circular hole 23 on fairlead seat 11 and sealing ring 67 successively, correspondence is connected on the external termination 36 on the connection bolt 17 being positioned at the second cavity 79, because the two ends of connection bolt lay respectively in two airtight cavitys, so the leakage of electric spark effectively can be isolated.
To insert with special inner hexagon spanner in the runners on fairlead seat 11 among hexagonal 37, fairlead seat 11 external screw thread and line box end cap 14 internal thread are tightened, airtightly after making closed hole circle 67 compressive deformation hold cable 55 tightly.Online box end cap 14 internal thread baseplane is provided with sealing ring 67 and carries out secondary isolation electric spark, and avoid electric spark to reveal further, flame proof is effective, and security performance is high.

Claims (7)

1. a flame-proof type disc type flat-belt pulley motor, comprise motor housing (10), front end housing (20), rear end cap (30), rotor field spider (32), machine shaft (40), fore bearing (25), rear bearing (35), permanent magnet (18), front stator (51) and rear stator (52) and flat-belt pulley (90), it is characterized in that: connect lead-in wire (88) exit in described motor housing (10) and be fixedly connected with junction box seat (13), wired box end cap (14) on junction box seat (13) outer end, fairlead seat (11) is positioned on described line box end cap (14), external lead wire (55) passes through described fairlead seat (11), described front stator (51) and described rear stator (52) formed by stator core (75) and armature winding (65), described rotor (50) is made up of six rotor cores (19) and the permanent magnet (18) be arranged between adjacent rotor iron core (19), described rotor (50) is installed on rotor field spider (32), and rotor field spider (32) is fixedly connected on the maximum gauge place on described machine shaft (40), described rear stator (52) is fixedly connected on the inner face of described rear end cap (30), described front stator (51) is fixedly connected on the inner face of described front end housing (20), and described rotor (50) is positioned between described rear stator (52) and front stator (51), described rear end cap (30) is equipped with bearing bonnet (33), described 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 bending resistance square component (80), described bending resistance square component (80) is fixed on described front end housing (20) by component screw (28), and component for adjusting ring (82) the inner on described bending resistance square component (80) is stretched into the Front Cover Bearing hole (24) on described front end housing (20) and propped up described fore bearing (25), no inner-ring bearing (60) is had between described bending resistance square component (80) outer end and described flat-belt pulley (90).
2. according to claim l flame-proof type disc type flat-belt pulley motor, it is characterized in that: between the component inner bore of step (84) of described bending resistance square component (80) and overhanging section of the rotating shaft (46) of described machine shaft (40), have rotational clearance (48), the outer bearing of described bending resistance square 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 flat-belt pulley (90), described belt wheel stepped hole (96) bottom surface there is the axis for spline tooth circumferential engagement between flat belt splined hole (94) and the axle head spline (49) on described machine 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 belt splined hole (94) outer transverse plane, then the axial displacement of described flat-belt pulley (90) is limited.
3. a kind of flame-proof type disc type flat-belt pulley motor according to claim 2, 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 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).
4. a kind of flame-proof type disc type flat-belt pulley motor according to claim 2, 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 belt wheel end face screw (97), described belt wheel stepped hole (96) there are belt wheel escape (93) and flat tyre wheel draw-in groove (98), in flat tyre wheel draw-in groove (98), activity is combined with band wheel bore snap ring (91), described belt 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 band wheel bore snap ring (91) and described flat tyre wheel adjusting ring (92) respectively.
5. a kind of flame-proof type disc type flat-belt pulley motor according to claim 2, it is characterized in that: described bending resistance square 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); Described 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.
6. a kind of flame-proof type disc type flat-belt pulley motor according to claim l, it is characterized in that: in described junction box seat (13) chamber, wired box dividing plate (12) is set, line box dividing plate (12) described junction box seat (13) is isolated into two along pipe range direction complete totally enclosed first cavity (78) and the second cavity (79), line box dividing plate (12) is provided with three connection bolts (17) spaced apart, connection bolt (17) wears connection box dividing plate (12), connection bolt (17) two ends overhang respectively and are being positioned at the first cavity (78) and second cavity (79) of described line box dividing plate (12) both sides, connect in described lead-in wire (88) correspondence be connected to be positioned at the first cavity (78) connection bolt (17) on connect on termination (26), internal thread on described line box end cap (14) matches with the external screw thread on described fairlead seat (11), it is fixing by the extruding of described fairlead seat (11) inner face that described line box end cap (14) internal thread baseplane is provided with sealing ring (67), external lead wire (55) pass through successively runners circular hole (23) on described fairlead seat (11) and described sealing ring (67) afterwards correspondence be connected to be positioned at the second cavity (79) connection bolt (17) on external termination (36) on.
7. a kind of flame-proof type disc type flat-belt pulley motor according to claim l, it is characterized in that: 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 machine shaft (40); Described rear end cap (30) there is rear screw (31) be fixed on described motor housing (10) rear end face, the bonnet dead eye (34) of described rear end cap (30) is fixed wtih rear bearing (35) cylindrical, and rear bearing (35) endoporus is fixed wtih the rear bearing section (43) of described machine shaft (40).
CN201520010411.9U 2015-01-08 2015-01-08 A kind of flame-proof type disc type flat-belt pulley motor Expired - Fee Related CN204361839U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104963176A (en) * 2015-06-30 2015-10-07 温州经济技术开发区滨海志杰机电产品设计工作室 Dry cleaning equipment for welding piston damping aluminum alloy of disk type motor
CN105088657A (en) * 2015-06-30 2015-11-25 张志雄 Threaded spring buffer rolling washing device of copper alloy disk-type motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104963176A (en) * 2015-06-30 2015-10-07 温州经济技术开发区滨海志杰机电产品设计工作室 Dry cleaning equipment for welding piston damping aluminum alloy of disk type motor
CN105088657A (en) * 2015-06-30 2015-11-25 张志雄 Threaded spring buffer rolling washing device of copper alloy disk-type motor
CN104963176B (en) * 2015-06-30 2017-03-15 温州经济技术开发区滨海志杰机电产品设计工作室 Disc type motor welding piston buffers aluminium alloy dry-cleaning equipment

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