CN204334195U - A kind of disc type gear motor - Google Patents
A kind of disc type gear motor Download PDFInfo
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- CN204334195U CN204334195U CN201520010579.XU CN201520010579U CN204334195U CN 204334195 U CN204334195 U CN 204334195U CN 201520010579 U CN201520010579 U CN 201520010579U CN 204334195 U CN204334195 U CN 204334195U
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Abstract
The utility model relates to a kind of motor train unit locomotive definite purpose motor, a kind of disc type gear motor, comprise motor housing, front end housing, rear end cap, rotor field spider, machine shaft, fore bearing, rear bearing and gear, machine shaft is fixedly connected with rotor field spider, rotor field spider is fixed with the annular disk of multipole magnetization, front end housing is fixed with and is positioned at the other stator winding of annular disk, the both sides of annular disk are fixed with stator core respectively; Front end housing is fixed with the iron core first half of stator core, iron core rear end cap being fixed with stator core is later half, front end housing and rear end cap are fixed with respectively at the same front stator tooth that circumferentially distributes and rear stator tooth, as improvement: front end housing is fixed with bending resistance square component, bending resistance square component is fixed by screws on front end housing, and the component for adjusting ring the inner on bending resistance square component is stretched into the Front Cover Bearing hole on front end housing and props up fore bearing; No inner-ring bearing is had between bending resistance square component outer end and gear.
Description
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 disc type gear 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.The stator and rotor of motor are mostly made up of iron core and coil windings, and motor operationally, also exists copper loss and iron loss, and its efficiency is difficult to increase substantially.On the other hand, motor shaft is difficult to do very thin to size shape, makes it be restricted in the application of special occasions.For this reason, people have carried out long-term exploration, propose various solution.Such as, there is human hair to understand a kind of permanent magnet disc motor [application number: CN03238349.5], comprise rotating shaft and power line, especially also comprise the rotor of at least one dish type and comprise the stator pack of more than one dish type stator; Described rotor be processed with coil groove and be fixed with commutator; Described stator pack comprises stator, and the center of stator arranges bearing; The one side of stator arranges even number sheet shape permanent magnet, and described permanent magnet N pole and S pole are staggered; At the fixedly connected brush of the another side of stator.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: gear 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 disc type gear 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 disc type gear motor, comprise motor housing, front end housing, rear end cap, rotor field spider, machine shaft, fore bearing, rear bearing and gear, described machine shaft is fixedly connected with rotor field spider, rotor field spider is fixed with the annular disk of multipole magnetization, described front end housing is fixed with and is positioned at the other stator winding of annular disk, the both sides of described annular disk are fixed with stator core respectively; Described front end housing is fixed with the iron core first half of stator core, the iron core described rear end cap being fixed with stator core is later half, front end housing and rear end cap are fixed with respectively at the same front stator tooth that circumferentially distributes and rear stator tooth, as improvement: 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 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, and described bending resistance square component is fixed by screws on described front end housing, 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 gear.
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 gear stepped hole inner round wall of described gear, described gear stepped hole bottom surface there is the axis for spline tooth circumferential engagement between gear spline 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 in described gear spline outer end of hole plane, then the axial displacement of described gear 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 in described gear spline outer end of hole plane 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 output gear cylindrical has involute gear tooth, described output gear outer face there is gear face screw, described gear stepped hole there are gear escape and gear draw-in groove, in gear draw-in groove, activity is combined with gear hole snap ring, described position, gear stepped hole base angle is placed with gear adjusting ring, and described both sides, needle roller outer ring against described gear hole snap ring and described gear adjusting ring respectively.
As further improvement: described bending resistance square component has component flange, the component for adjusting ring cylindrical inside component flange and be interference fits between described Front Cover Bearing hole; Component for adjusting ring cylindrical and described outer bearing have the axiality relation of Pyatyi tolerance grade between propping up and holding round; Described front end housing lateral surface there is protecgulum concave station face, protecgulum concave station face there are 5 to 6 protecgulum screws, described component flange has 5 to 6 components pillow holes corresponding with described protecgulum screw, each described component is rested the head on and hole is passed through component screw and match with described protecgulum screw and be fixed on described protecgulum concave station face by described bending resistance square component; There is between described protecgulum concave station face and described Front Cover Bearing hole the perpendicularity relation of Pyatyi tolerance grade.
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.
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, front end housing has the winding contained structure for fixed stator winding, stator winding kidney-shaped structure in the form of a ring.Front end housing is fixed with the iron core first half of stator core, iron core rear end cap being fixed with stator core is later half.Front end housing and rear end cap medial surface are fixed with respectively at the same front stator tooth that circumferentially distributes and rear stator tooth, front stator tooth and rear stator tooth correspond to iron core first half respectively and iron core later half.Annular disk is filled with the magnetic pole that N pole and S pole are arranged alternately one by one.This structure effectively can improve the field performance of rotor, and simplifies overall structure.Whole annular disk is integral type structure, and therefore, mechanical strength is high, Long-Time Service and be subject to impact also can not cause loosely organized.
2, it is that the error of millimeter unit sizes is less than or equal to 0.01 millimeter that outer bearing described outside described component flange among the bending resistance square component in the utility model props up the axiality held round between component for adjusting ring cylindrical, is similar to absolute concentric shafts.Prop up the axiality holding round and there is Pyatyi tolerance grade between component for adjusting ring cylindrical in order to ensure the outer bearing on bending resistance square component, guarantee that machine shaft and gear also have axiality relation, realize stable gear coaxial rotating.
Said structure achieves machine shaft and fore bearing and rear bearing only need bear pure torsion, and the radial load that external gear pump produces react to gear be can completely bear by no inner-ring bearing, only act on bending resistance square component, radial load is born in overhanging section of the rotating shaft that completely avoid on machine shaft.
The front end housing of motor 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 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.
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.
Accompanying drawing explanation
Figure l is overall structure partial cutaway schematic of the present utility model.
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 front end housing 20 inboard face structural representation in Fig. 1.
Fig. 5 is the rear end cap 30 inboard face structural representation in Fig. 1.
Fig. 6 is the structural representation of the annular disk 83 in Fig. 1.
Fig. 7 is the heavy gauge schematic diagram at position residing for bending resistance square component 80 in Fig. 1 and gear 90.
Fig. 8 is local amplification profile schematic diagram again in Fig. 7.
Fig. 9 is Fig. 7 end view.
Figure 10 is the gear 90 amplification profile schematic diagram in Fig. 7.
Figure 11 is the front end housing 20 amplification profile schematic diagram in Fig. 1.
Figure 12 is the rear end cap 30 amplification profile schematic diagram in Fig. 1.
Figure 13 is the bending resistance square component 80 amplification profile schematic diagram in Fig. 1.
Figure 14 is the generalized section that bending resistance square component 80 is processed by special clamping apparatus clamping.
Figure 15 is Figure 14 left side view.
Figure 16 is the generalized section of left expansion set 15 in Figure 14 or right expansion set 16.
Figure 17 is Figure 16 right side view.
Figure 18 is Figure 16 left side view.
Embodiment
The utility model is described in detail below in conjunction with the drawings and specific embodiments:
A kind of disc type gear 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 and gear 90, described machine shaft 40 is fixedly connected with rotor field spider 32, rotor field spider 32 is fixed with the annular disk 83 of multipole magnetization, described front end housing 20 is fixed with and is positioned at the other stator winding 11 of annular disk 83, the both sides of described annular disk 83 are fixed with stator core 50 respectively; Described front end housing 20 is fixed with the iron core first half 51 of stator core 50, described rear end cap 30 is fixed with the iron core later half 52 of stator core 50, front end housing 20 and rear end cap 30 is fixed with respectively at the same front stator tooth 12 that circumferentially distributes and rear stator tooth 13; Front stator tooth 12 and rear stator tooth 13 are all be made up of silicon steel, as improvement: have gland flange 17 between the connection jaws seat 75 on described pin interfaces 65 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 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 by screws on described front end housing 20, 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 gear 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 gear stepped hole 96 inner round wall of described gear 90, described gear stepped hole 96 bottom surface there is the axis for spline tooth circumferential engagement between gear spline 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 in gear spline hole 94, then the axial displacement of described gear 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 in gear spline 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 output gear 90 cylindrical has involute gear tooth 99, described output gear 90 outer face there is gear face screw 97, described gear stepped hole 96 there are gear escape 93 and gear draw-in groove 98, in gear draw-in groove 98, activity is combined with gear hole snap ring 91, described position, gear stepped hole 96 base angle is placed with gear adjusting ring 92, and described both sides, needle roller outer ring 69 against described gear hole snap ring 91 and described gear adjusting ring 92 respectively.
As further improvement: described bending resistance square component 80 has component flange 87, component for adjusting ring 82 cylindrical inside component flange 87 and be interference fits between described Front Cover Bearing hole 24; Component for adjusting ring 82 cylindrical and described outer bearing prop up the axiality relation holding round and have Pyatyi tolerance grade between 89; Described front end housing 20 lateral surface there is protecgulum concave station face 29, protecgulum concave station face 29 there are 5 to 6 protecgulum screws 27, described component flange 87 has 5 to 6 components pillow holes 85 corresponding with described protecgulum screw 27, each described component is rested the head on and hole 85 is passed through component screw 28 and match with described protecgulum screw 27 and be fixed on described protecgulum concave station face 29 by described bending resistance square component 80; 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: 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 bottom mouth seat endoporus 79, 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 the described inner external screw thread of pin interfaces 65; 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 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 described mouth seat endoporus 79, the gland through hole 37 that 2 to 3 gland bolts 88 pass 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.
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.
Rotor field spider 32 is fixedly connected on the maximum gauge place on machine shaft 40 and has flat key 14 transmitting torque, machine shaft 40 is supported on front end housing 20 and rear end cap 30 by fore bearing 25 and rear bearing 35 respectively, 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 machine shaft 40; Rear end cap 30 has rear screw 31 be fixed on motor housing 10 rear end face, the bonnet dead eye 34 of rear end cap 30 is fixed wtih rear bearing 35 cylindrical, rear bearing 35 endoporus is fixed wtih the rear bearing section 43 of machine shaft 40.
In embodiment:
Described front end housing 20 is fixed on described motor housing 10 front end face by the protecgulum housing hole 26 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 36 that after 8, screw 31 passes through on described rear end cap 30.
The quantity of the magnetic pole in embodiment is even number, and have at motor housing 10 internal fixtion and be positioned at the other stator winding 11 of annular disk 83, the both sides of annular disk 83 are fixed with iron core first half 51 and the iron core later half 52 of stator core 50 respectively.
More particularly, machine shaft 40 is fixed with rotor field spider 32, annular disk 83 is fixed on rotor field spider 32.Stator winding 11 is fixed on front end housing 20, and the quantity of stator winding 11 is two groups and is symmetrical arranged, and front end housing 20 has the winding contained structure 81 for fixed stator winding 11, stator winding 11 kidney-shaped structure in the form of a ring.Be provided with fore bearing 25 between front end housing 20 and machine shaft 40, between rear end cap 30 and machine shaft 40, be provided with rear bearing 35.Front end housing 20 is fixed with the iron core first half 51 of stator core 50, rear end cap 30 is fixed with the iron core later half 52 of stator core 50.
Front end housing 20 in embodiment and rear end cap 30 medial surface are fixed with respectively at the same front stator tooth 12 that circumferentially distributes and rear stator tooth 13, front stator tooth 12 and rear stator tooth 13 correspond to iron core first half 51 and iron core later half 52 respectively.
N, S in Fig. 6 represent the magnetic of magnetic pole respectively, and annular disk 83 is filled with the magnetic pole that N pole and S pole are arranged alternately one by one.This structure effectively can improve the field performance of rotor, and simplifies overall structure.Whole annular disk 83 is integral type structure, and therefore, mechanical strength is high, Long-Time Service and be subject to impact also can not cause loosely organized.
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, is similar to absolute concentric shafts.Prop up the axiality holding round and there is between 89 and component for adjusting ring 82 cylindrical Pyatyi tolerance grade in order to ensure the outer bearing on bending resistance square component 80, 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 gear adjusting ring 92 matched in clearance being put among the gear stepped hole 96 on gear 90 and crossing gear escape 93 is attached on gear hole bottom surface 95; Again by among the gear stepped hole 96 on the needle roller outer ring 69 on no inner-ring bearing 60 slightly interference fit press-in gear 90, again gear hole snap ring 91 specific purpose tool is put into gear draw-in groove 98, make both sides, needle roller outer ring 69 against gear hole snap ring 91 and gear adjusting ring 92 respectively.
(3) connection between gear 90 and machine shaft 40
The needle roller outer ring 69 be fixed on gear 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 transmitting gear 90, gear spline hole 94 on gear 90 is aimed at the axle head spline 49 on machine shaft 40 match, continue pushing gear 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 gear face screw 97 on gear 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 gear 90 outer face;
Also match with the gear face screw 97 on gear 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 gear spline hole 94 on output gear 90 passes to the involute gear tooth 99 on output gear 90, realizes moment of torsion and exports.
The utility model has following substantive distinguishing features and progressive effect:
Front end housing 20 has the winding contained structure 81 for fixed stator winding 11, stator winding 11 kidney-shaped structure in the form of a ring.Front end housing 20 is fixed with the iron core first half 51 of stator core 50, rear end cap 30 is fixed with the iron core later half 52 of stator core 50.Front end housing 20 and rear end cap 30 medial surface are fixed with respectively at the same front stator tooth 12 that circumferentially distributes and rear stator tooth 13, front stator tooth 12 and rear stator tooth 13 correspond to iron core first half 51 and iron core later half 52 respectively.Annular disk 83 is filled with the magnetic pole that N pole and S pole are arranged alternately one by one.This structure effectively can improve the field performance of rotor, and simplifies overall structure.Whole annular disk 83 is integral type structure, and therefore, mechanical strength is high, Long-Time Service and be subject to impact also can not cause loosely organized.
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 in the utility model props up the axiality held round between 89 and component for adjusting ring 82 cylindrical, is similar to absolute concentric shafts.Prop up the axiality holding round and there is between 89 and component for adjusting ring 82 cylindrical Pyatyi tolerance grade in order to ensure the outer bearing on bending resistance square component 80, guarantee that machine shaft 40 and gear 90 also have axiality relation, realize gear 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 external gear pump produces react to gear 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.
The front end housing 20 of motor arranges bending resistance square component, 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.
Claims (7)
1. a disc type gear 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) and gear (90), described machine shaft (40) is fixedly connected with rotor field spider (32), rotor field spider (32) is fixed with the annular disk (83) of multipole magnetization, described front end housing (20) is fixed with and is positioned at the other stator winding (11) of annular disk (83), the both sides of described annular disk (83) are fixed with stator core (50) respectively, described front end housing (20) is fixed with the iron core first half (51) of stator core (50), described rear end cap (30) is fixed with the iron core later half (52) of stator core (50), front end housing (20) and rear end cap (30) is fixed with respectively at the same front stator tooth (12) that circumferentially distributes and rear stator tooth (13), it is characterized in that: have gland flange (17) between the connection jaws seat (75) on described pin interfaces (65) 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 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 by screws on described front end housing (20), 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 gear (90).
2. according to claim l disc type gear 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 gear stepped hole (96) inner round wall of described gear (90), described gear stepped hole (96) bottom surface there is the axis for spline tooth circumferential engagement between gear spline 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 gear spline hole (94) outer transverse plane, then the axial displacement of described gear (90) is limited.
3. a kind of disc type gear 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 gear spline 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 disc type gear motor according to claim 2, it is characterized in that: described output gear (90) cylindrical has involute gear tooth (99), described output gear (90) outer face there is gear face screw (97), described gear stepped hole (96) there are gear escape (93) and gear draw-in groove (98), in gear draw-in groove (98), activity is combined with gear hole snap ring (91), described gear stepped hole (96) position, base angle is placed with gear adjusting ring (92), described needle roller outer ring (69) both sides against described gear hole snap ring (91) and described gear adjusting ring (92) respectively.
5. a kind of disc type gear motor according to claim 2, it is characterized in that: described bending resistance square component (80) has component flange (87), is interference fits between component for adjusting ring (82) cylindrical of component flange (87) inner side and described Front Cover Bearing hole (24); Component for adjusting ring (82) cylindrical and described outer bearing prop up the axiality relation holding round and have Pyatyi tolerance grade between (89); Described front end housing (20) lateral surface there is protecgulum concave station face (29), protecgulum concave station face (29) there are 5 to 6 protecgulum screws (27), described component flange (87) has 5 to 6 components pillow hole (85) corresponding with described protecgulum screw (27), each described component is rested the head on and hole (85) is passed through component screw (28) and match with described protecgulum screw (27) and be fixed on described protecgulum concave station face (29) by described bending resistance square component (80); 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 disc type gear 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 (65) 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).
7. a kind of disc type gear 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520010579.XU CN204334195U (en) | 2015-01-08 | 2015-01-08 | A kind of disc type gear motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520010579.XU CN204334195U (en) | 2015-01-08 | 2015-01-08 | A kind of disc type gear motor |
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| CN204334195U true CN204334195U (en) | 2015-05-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112276871A (en) * | 2015-06-05 | 2021-01-29 | 英古所连工业美国公司 | Hand-held electric tool and method for producing same |
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2015
- 2015-01-08 CN CN201520010579.XU patent/CN204334195U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112276871A (en) * | 2015-06-05 | 2021-01-29 | 英古所连工业美国公司 | Hand-held electric tool and method for producing same |
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