CN103378686A - Motor with brake - Google Patents
Motor with brake Download PDFInfo
- Publication number
- CN103378686A CN103378686A CN2013101279506A CN201310127950A CN103378686A CN 103378686 A CN103378686 A CN 103378686A CN 2013101279506 A CN2013101279506 A CN 2013101279506A CN 201310127950 A CN201310127950 A CN 201310127950A CN 103378686 A CN103378686 A CN 103378686A
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- brake
- motor
- face
- stator
- outlet side
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- 238000005086 pumping Methods 0.000 claims description 46
- 230000002093 peripheral effect Effects 0.000 claims description 41
- 239000010687 lubricating oil Substances 0.000 claims description 28
- 238000001179 sorption measurement Methods 0.000 claims description 22
- 230000004907 flux Effects 0.000 description 10
- 239000000758 substrate Substances 0.000 description 10
- 239000000696 magnetic material Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 239000004411 aluminium Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention provides a motor with a brake, which can arrange the brake with respect to a motor shaft properly. In the motor (1) with the brake, a brake positioning plate (3) is arranged between the end face of the reverse output side (L2) of a motor part (2) and the end face (401) of the output side of a brake stator (40). The brake positioning plate (3) is provided with a circular end plate part (31) clamped between the end face of the reverse output side (L2) of the motor part (2) and the end face (401) of the output side of the brake stator (40), and a cylinder part (32) vertically protruding from the inner periphery of the circular end plate part (31) toward the reverse output side (L2) to contact with the inner circumferential surface (402) of the brake stator (40). Therefore, the brake positioning plate (3) is positioned by taking the motor part (2) as the reference, and the brake stator (40) is positioned at the motor part (2) by means of the brake positioning plate (3).
Description
Technical field
The present invention relates to a kind of band brake motor.
Background technology
Once proposed a kind of to prevent that when stopping motor drive shaft from rotating to be purpose with load, is provided with the band brake motor (referring to Patent Document 1) of brake at the anti-outlet side of motor axis direction with respect to motor part.
At this, in the band brake motor that patent documentation 1 is put down in writing, surround brake around the reverse pumping of carriage go out side end and be provided with end plate section, and described end plate section and brake go out the side end face butt with the reverse pumping of stator.
Patent documentation 1: No. 4457156 communique of Japan's special permission
, need so that the mode that both axis directions are parallel to each other is configured with stator and motor drive shaft about the brake of tubular, so that in the band brake motor, motor drive shaft is applied load rightly during the brake action.But, in patent documentation 1, not on the books about location structure between motor drive shaft and brake etc.And, in the band brake motor that patent documentation 1 is put down in writing, although being formed on end plate section that the reverse pumping of carriage goes out side end seems brake is located with stator, but in utilizing the structure of carriage, if carriage and surround motor part around motor shell between installation accuracy low, will produce brake with problems such as stator inclinations.
Summary of the invention
In view of the above problems, problem of the present invention provide a kind of can be with respect to the band brake motor of the appropriate arrangement brake device of motor drive shaft.
In order to address the above problem, the present invention is in having the band brake motor of motor part and brake, described motor part has motor rotor and motor stator, described brake has the brake rotor that is fixed in the motor drive shaft that extends with rotor at described motor, and the brake stator that is configured in the tubular on every side of described motor drive shaft, and described brake is configured in the anti-outlet side of described motor axis direction with respect to described motor part, described band brake motor also has the brake location-plate, and described brake location-plate has the reverse pumping that is clamped in described motor part and goes out side end face and described brake with the looped end board between the outlet side end face of stator, thereby and have and go out the cylinder section that side-prominent and described brake contacts with the inner peripheral surface of stator than the large internal diameter size of the outside dimension of described motor drive shaft and from the inner peripheral of described looped end board to reverse pumping.
In the present invention, between motor part and brake are with stator, dispose the brake location-plate, go out side end face and brake with the looped end board between the outlet side end face of stator and vertical outstanding and brake contact with the inner peripheral surface of stator from cylinder section from the inner peripheral of looped end board to anti-outlet side thereby described brake location-plate has the reverse pumping that is clamped in motor part.Therefore, the brake location-plate is positioned take motor part as benchmark, thereby brake is positioned motor part with stator by the brake location-plate.Consequently, brake goes out the side end face with respect to the reverse pumping of motor part with stator perpendicularity is determined by the looped end board of brake location-plate, and brake is determined with the cylinder section of the axiality between stator and motor part, motor drive shaft by the brake location-plate.Therefore, the brake that is fixed in motor drive shaft with rotor and be configured in motor part around the brake of tubular high with the relative positional accuracy between stator, can be with respect to motor drive shaft and motor part arrangement brake device rightly.
In the present invention, the anti-outlet side journal bearing that preferably goes out the described motor drive shaft of side bearing in reverse pumping is configured in described motor part.According to described structure, when comprising that anti-outlet side journal bearing has been assembled motor part, the position of motor drive shaft and posture are determined, therefore, can adopt the method that after the assembling motor part, brake is fixed on the anti-outlet side of motor part to assemble the band brake motor, thus can be with respect to motor drive shaft arrangement brake device rightly.
In the present invention, preferred described motor part has the retainer that keeps described anti-outlet side journal bearing between described motor is with stator and described brake, the described reverse pumping of described motor part goes out the side end face and goes out the side end face by the reverse pumping of described retainer and consist of.According to described structure, because the brake location-plate is configured rightly take retainer as benchmark, therefore can be with respect to motor drive shaft arrangement brake device rightly.
In the present invention, preferably at the outlet side end face of looped end board felt shape or porous lubricating oil adsorption element are installed.According to described structure, even the bearing of motor part etc. use lubricating oil, lubricating oil also is difficult for entering the brake side.Therefore, be difficult for occuring the situation that brake can't appropriately be worked owing to lubricating oil.
In the present invention, preferably in the described outlet side end face of looped end board, be formed with the recess that holds described lubricating oil adsorption element in the position of leaving from inner peripheral to radial outside.According to described structure, the lubricating oil that can prevent lubricated oily adsorption element absorption enters the situation in the brake via interior all sides of brake.
In the present invention, the outer circumferential side annular section that leaves from inner peripheral to radial outside that the reverse pumping of preferred described looped end board goes out in the side end face is positioned at than the position of leaning on anti-outlet side with respect to described outer circumferential side annular section all side ring shapes zone in the inner part, described outer circumferential side annular section and the described brake described delivery side plane-plane contact of stator.According to described structure, as long as the reverse pumping that consists of accurately the looped end board goes out the outer circumferential side annular section in the side end face.
In the present invention, the gauge of preferred described lubricating oil adsorption element equates with the depth dimensions of described recess or is less than the depth dimensions of described recess.
In the present invention, it is overlapping that the reverse pumping of the outer circumferential side of preferred described recess part and described retainer goes out the part, side end face, the outer circumferential side part of described lubricating oil adsorption element is gone out side end face and described recess clamping by the reverse pumping of described retainer, interior all sides part of described lubricating oil adsorption element goes out the side end face from the reverse pumping of described retainer to be exposed towards outlet side, and across gap and described anti-outlet side journal bearing in opposite directions.
In the present invention, preferably only having the reverse pumping of described looped end board to go out described outer circumferential side annular section in the side end face becomes the datum level that contacts with the outlet side end face of stator with described brake, and the described outer circumferential side annular section that becomes datum level has carried out secondary operations by grinding.
In the present invention, preferred described brake have with described brake with rotor outlet side in opposite directions armature and with described brake with rotor at anti-outlet side plate in opposite directions, described brake with stator with described armature in outlet side position configuration in opposite directions around described motor drive shaft.At this moment, preferred described brake disposes with stator in parallel to each other in opposite directions with rotor, described armature, described plate, described brake.
In the present invention, preferably between described retainer and described brake location-plate clamping pad is arranged.At this moment, when the element precisions such as retainer are low, even sometimes improve the form accuracy of looped end board, also can't configured in parallel brake stator and motor drive shaft.But, according to described structure, even the element precisions such as retainer are low, also can be with respect to motor drive shaft configured in parallel brake stator.
In the present invention, between motor part and brake are with stator, dispose the brake location-plate, go out side end face and brake with the looped end board between the outlet side end face of stator and vertical outstanding and brake contact with the inner peripheral surface of stator from cylinder section from the inner peripheral of looped end board to anti-outlet side thereby described brake location-plate has the reverse pumping that is clamped in motor part.Therefore, the brake location-plate is positioned take motor part as benchmark, and brake is positioned motor part with stator by the brake location-plate.Consequently, looped end board by the brake location-plate, brake is determined with respect to the perpendicularity that the reverse pumping of motor part goes out the side end face with stator, and by the cylinder section of brake location-plate, brake is determined with the axiality between stator and motor part, motor drive shaft.Therefore, the brake that is fixed in motor drive shaft with rotor and be configured in motor part around the brake of tubular high with the relative positional accuracy between stator, can be with respect to motor drive shaft and motor part arrangement brake device rightly, thereby brake can appropriately be worked.
Description of drawings
Fig. 1 is the cutaway view that uses band brake motor of the present invention.
Fig. 2 amplifies the cutaway view that the key component of band brake motor of the present invention is used in expression.
(symbol description)
1 band brake motor
2 motor part
3 brake location-plates
4 brakes
5 dividing plates
6 encoders
9 lubricating oil adsorption elements
20 motor drive shafts
21 motor stators
25 motor rotors
28 retainers
29 journal bearings (anti-outlet side journal bearing)
31 looped end boards
32 sections
40 brake stators
45 friction plates (brake rotor)
51 aperture portion
65 substrate holding plates
66 substrates
67 Magnetic Sensors
68 encoder magnet (permanent magnet)
82 brake casings (tubular shell parts)
The reverse pumping of 281 retainers goes out side end face (reverse pumping of motor part goes out the side end face)
313 outer circumferential side annular sections
314 interior all side ring shapes zones
316 recesses
Embodiment
Below, with reference to accompanying drawing an example that uses band brake motor of the present invention is described.In addition, in the following description, when indication motor axis L direction, take the outstanding side of motor drive shaft as outlet side L1, take a side opposite with the outstanding side of motor drive shaft as anti-outlet side L2.And in the accompanying drawings, screw 101,103,107 is illustrated in equitant position, but screw 101,103,107 is along circumferentially being configured in different positions.
(overall structure of motor)
Fig. 1 is the cutaway view that uses band brake motor of the present invention, and Fig. 2 amplifies the cutaway view that the key component of band brake motor of the present invention is used in expression.
As shown in Figure 1, the band brake motor 1 of this example is aligned in sequence with motor part 2, brake 4 and encoder 6 from a side (outlet side L1) of the axis direction (motor axis L direction) of motor drive shaft 20 towards opposite side (anti-outlet side L2), is surrounded by casing 8 around motor part 2, brake 4 and the encoder 6.In the present embodiment, casing 8 has the motor shell cylindraceous 81 on every side that surrounds motor part 2, the brake casing 82(tubular shell parts cylindraceous on every side that surround brake 4) and encoder housing 83.
(structure of motor part 2)
Motor has the stator core 211 that is made of laminated iron core, is wound in the coil 212 of a plurality of prominent utmost points of stator core 211 across insulating part 213 with stator 21, and stator core 211 is fixed in the inner peripheral surface of motor shell 81 by methods such as shrink fit.
End at the outlet side L1 of motor shell 81 is equipped with the framework 26 that is made of aluminium diecasting etc., and the peristome of the outlet side L1 of motor shell 81 is closed by framework 26.Framework 26 has by welding and screw thread the cylindrical portion 261 of end of the outlet side L1 that is fixed in motor shell 81 and the end plate section 262 of end that is formed on the outlet side L1 of cylindrical portion 261 such as fixes.Be formed with the outstanding peristome 264 in end of the outlet side L1 that makes motor drive shaft 20 in the central authorities of end plate section 262, peristome 264 is formed by the cylinder section 263 outstanding from end plate section 262 to anti-outlet side L2.Maintain journal bearing 27 at outlet side L1 supporting motor drive shaft 20 in cylinder section 263, framework 26 is used as the part of casing 8, also is used as retainer simultaneously.In the present embodiment, journal bearing 27 is made of the bearing with inner ring 271, ball 272 and outer ring 273, and inner ring 271 is embedded in the outer peripheral face of motor drive shaft 20, and outer ring 273 is embedded in a section 263.Framework 26 be formed with peristome 264 in the part that disposes outer ring 273 and ball 272 at the teat 265 of the overlapping ring-type of outlet side L1, utilize described teat 265, the spring of exerting pressure (not shown) that assembling is exerted pressure to bearing 27 radially.And teat 265 can play and prevent that foreign matter from entering inner effect by journal bearing 27 from outlet side L1.
As shown in Figure 2, motor part 2 has retainer 28 in the end of anti-outlet side L2, and the reverse pumping of the end plate section 280 by retainer 28 goes out the reverse pumping that side end face 281 consists of motor part 2 and goes out the side end face.The outer peripheral portion of the outer peripheral portion of retainer 28 and brake location-plate 3 described later together is clamped between the end of outlet side L1 of the end of anti-outlet side L2 of motor shell 81 and brake casing 82.In the present embodiment, retainer 28 is made of magnetic materials such as Ferrious materials.
In retainer 28, end plate section 280 is overlapping with the end plate section 810 of brake location-plate 3 and motor shell 81, and is extruded with cylindrical portion 283 from the edge of the peristome of the central authorities that are formed on end plate section 280 towards outlet side L1.In the present embodiment, end plate section 280 and the brake location-plate 3 end plate section 810 of together being fixed in motor shell 81 by screw 101.Maintain the journal bearing 29 that supports motor drive shaft 20 at anti-outlet side L2 in cylindrical portion 283.Journal bearing 29 is made of the bearing with inner ring 291, ball 292 and outer ring 293, and inner ring 291 is embedded in the outer peripheral face of motor drive shaft 20, and outer ring 293 is embedded in cylindrical portion 283.
Thus, motor drive shaft 20 is supported to and can rotates by the journal bearing 27 of outlet side L1 and the journal bearing 29 of anti-outlet side L2.In addition, in the journal bearing 27 of outlet side L1, inner ring 271 is at the outer peripheral face of motor drive shaft 20 and stage portion butt (with reference to Fig. 1) towards outlet side L1, and in the journal bearing 29 of anti-outlet side L2, and inner ring 291 is at the outer peripheral face of motor drive shaft 20 and stage portion butt towards anti-outlet side L2.
(structure of brake location-plate 3 and brake 4)
In the present embodiment, going out side end face (reverse pumping of retainer 28 goes out side end face 281) overlay configuration in the reverse pumping of motor part 2 has brake location-plate 3, disposes brake 4 at the anti-outlet side L2 of described brake location-plate 3.In the present embodiment, brake 4 is fixed in motor part 2 by screw 107.
Surrounded by brake casing 82 cylindraceous around brake location-plate 3 and the brake 4, when making dividing plate 5 described later admittedly terminate in retainer 28 and motor shell 81 by screw 103, brake casing 82 its with motor shell 81 between clamping have under the state of outer peripheral portion of retainer 28 and brake location-plate 3 and be connected with motor shell 81.In the present embodiment, brake casing 82 is made by nonmagnetic metal such as aluminium, and brake location-plate 3 is made of magnetic materials such as Ferrious materials.
The brake that is used for brake 4 is described as described below with stator 40, be cylindric, and brake location-plate 3 has looped end board 31 and cylinder section 32, wherein, the reverse pumping that described looped end board 31 is clamped in motor part 2 goes out side end face (reverse pumping of retainer 28 goes out side end face 281) and brake is used between the outlet side end face 401 of stator 40, described cylinder section 32 has the internal diameter size larger than the outside dimension of motor drive shaft 20, thereby and contacts with the inner peripheral surface 402 of brake with stator 40 to anti-outlet side L2 is vertically outstanding from the inner peripheral of looped end board 31.
In the present embodiment, brake 4 is electromagnetic type, and has the circular friction plate 45(brake rotor that is fixed in motor drive shaft 20), with friction plate 45 in opposite directions circular armature 46 of outlet side L1, with friction plate 45 anti-outlet side L2 in opposite directions circular plate 47 and with armature 46 at the cylindraceous brake of outlet side L1 position configuration in opposite directions around motor drive shaft 20 with stator 40.In the present embodiment, friction plate 45 is fixed in motor drive shaft 20 by the link 48 on every side that is fixed on motor drive shaft 20.
In motor drive shaft 20, the part that is positioned at motor part 2 of large-diameter portion 201 becomes the first large-diameter portion 201a, and being braked device becomes the diameter second large-diameter portion 201b less than the diameter of the first large-diameter portion 201a with the part that stator 40 surrounds.And, in motor drive shaft 20, at the first large-diameter portion 201a of motor part 2 and be braked between the second large-diameter portion 201b that device surrounds with stator 40 as diameter is less than the diameter of the first large-diameter portion 201a and the second large-diameter portion 201b, but the third-largest footpath section 201c larger than the diameter of central diameter section 202.The third-largest footpath 201c of section divides multistage ground diameter reduction from outlet side L1 towards anti-outlet side L2, and maintains back-up ring 290 between the stage portion of the third-largest footpath 201c of section and the second large-diameter portion 201b.
In brake 4, brake has yoke cylindraceous 404 with stator 40 and is wound in the coil 403 of yoke 404, and to coil 403 energisings and excitation brake during with stator 40 works as electromagnet.Be built-in with the torque spring (not shown) that is consisted of by the helical spring towards 45 pairs of armature 46 application of forces of friction plate at brake in stator 40.Therefore, not to brake during with the non-energising of coil 403 energising of stator 40 (during non-excitation), friction plate 45 is clamped between armature 46 and the plate 47 by torque spring, consequently by its frictional force motor drive shaft 20 is applied load.Relative therewith, when brake is switched on the coil 403 of stator 40 (during excitation), armature 46 is resisted torque springs and is braked device with stator 40 attractions, consequently produce the gap between armature 46 and friction plate 45, thereby friction plate 45 is not limited.
In the brake 4 of described structure, the friction plate 45, plate 47, armature 46 and the brake that need to be fixed in motor drive shaft 20 dispose abreast in opposite directions with stator 40, therefore, in the present embodiment, by brake location-plate 3 brake is fixed in motor part 2 with stator 40.More particularly, in brake location-plate 3, the reverse pumping that looped end board 31 is clamped in motor part 2 goes out between side end face (reverse pumping of retainer 28 goes out side end face 281) and the brake usefulness outlet side end face 401 of stator 40, by described looped end board 31, brake with stator 40 to dispose with respect to the high mode of motor part 2 perpendicularity.And in brake location-plate 3, cylinder section 32 contacts with the inner peripheral surface 402 of brake with stator 40, by described cylinder section 32, brake with stator 40 to dispose with respect to motor part 2 and the high mode of motor drive shaft 20 axialities.Therefore, can be with respect to motor drive shaft 20 arrangement brake device 4 rightly.Therefore, in brake 4, be fixed in the friction plate 45(brake rotor of motor drive shaft 20) and be configured in motor part 2 around the brake of tubular high with the relative positional accuracy of 40 of stators.
In the present embodiment, overlapping whole of end plate section in the outlet side end face 311 of the looped end board 31 of brake location-plate 3 and retainer 28 280 contacts with 280 in the end plate section of retainer 28.Relative therewith, the reverse pumping of the looped end board 31 of brake location-plate 3 goes out the outer circumferential side annular section 313 that separates from inner peripheral to radial outside in the side end face 312 and is positioned at than with respect to the positions of outer circumferential side annular section 313 all side ring shapes zone 314 in the inner part by anti-outlet side L2, only has the outer circumferential side annular section 313 of looped end board 31 to become the datum level that contacts with the outlet side end face 401 of stator 40 with brake.Therefore, interior all side ring shapes zone 314 becomes and is recessed into than outer circumferential side annular section 313 recess by the ring-type of the position of outlet side L1, and does not contact with the outlet side end face 401 of brake with stator 40.Therefore, as long as the outer circumferential side annular section that becomes datum level 313 that the reverse pumping of looped end board 31 goes out in the side end face 312 is rectangular accurately with cylinder section 32 by the secondary operations such as grinding, even then the form accuracy in interior all side ring shapes zone 314 is low, also brake can be disposed with respect to motor drive shaft 20 abreast with stator 40.In addition, when the element precision of retainer 28 and motor shell 81 hangs down, even improve the form accuracy of looped end board 31, sometimes also can't the configured in parallel brake with stator 40 and motor drive shaft 20, at this moment, adopt the structure of holding shim between retainer 28 and brake location-plate 3 or looped end board 31 carried out the structure of the secondary operations such as machined into.
In the present embodiment, be equipped with at the outlet side end face 311 of looped end board 31 and be felt shape or porous lubricating oil adsorption element 9, lubricating oil adsorption element 9 is arranged on the position of leaving from inner peripheral to radial outside in the outlet side end face 311 of looped end board 31.In the present embodiment, at the outlet side end face 311 of looped end board 31, be formed with the recess 316 of ring-type in the position of leaving from inner peripheral to radial outside, lubricating oil adsorption element 9 is installed in the inside of described recess 316.At this, the gauge of lubricating oil adsorption element 9 equates that with the depth dimensions of recess 316 perhaps the depth dimensions than recess 316 is thin, and lubricating oil adsorption element 9 is not outstanding from recess 316.In the present embodiment, the outer circumferential side of recess 316 part circumferentially goes out the side end face with the reverse pumping of the 280(of the end plate section retainer 28 of retainer 28 along whole) local overlapping, the outer circumferential side part of lubricating oil adsorption element 9 is circumferentially gone out the side end face by the reverse pumping of the 280(of end plate section retainer 28 along whole) and recess 316 clampings.And interior all sides part of recess 316 circumferentially goes out the side end face from the reverse pumping of the 280(of end plate section retainer 28 along whole) expose towards outlet side L1, thereby across gap and journal bearing 29 at anti-outlet side L2 in opposite directions.In addition, lubricating oil adsorption element 9 also can have the gauge larger than the depth dimensions of recess 316.
(structure of dividing plate 5 and encoder 6)
Be fixed with dividing plate 5 at anti-outlet side L2 by screw 103 with respect to brake 4, dividing plate 5 is connected with brake casing 82 at outer peripheral portion, and the peristome of the anti-outlet side L2 of closed brake device housing 82.And at the anti-outlet side L2 of band brake motor 1, to be provided with the encoder housing 83 of cup-shaped by the mode of the face of the anti-outlet side L2 of dividing plate 5 covering, encoder housing 83 is fixed in dividing plate 5 by screw 109.In the present embodiment, the space 830 that utilizes dividing plate 5 and encoder housing 83 to surround consists of following illustrated encoder 6.
At first, be formed with the aperture portion 51 that connects for motor drive shaft 20 at dividing plate 5, the end of the anti-outlet side L2 of motor drive shaft 20 connects the aperture portion 51 of dividing plate 5 and is projected into the inside in space 830.At this, the part that is positioned at aperture portion 51 in the outer peripheral face of motor drive shaft 20 forms and clips stage portion 204 and the axial region with the level of outside dimension switching.That is, the stage portion 204 between central diameter section 202 and minor diameter part 203 in the outer peripheral face of motor drive shaft 20 is positioned at aperture portion 51.And, thereby the inner peripheral surface of aperture portion 51 forms the hole with the level of switching with the outside dimension of motor drive shaft 20 interlock internal diameter size, and have and central diameter section 202 the overlapping large-diameter portion 51a of radial outside, and minor diameter part 203 at radial outside overlapping minor diameter part 51b and the stage portion 51c between large-diameter portion 51a and minor diameter part 203.Therefore, the gap between the inner peripheral surface of the outer peripheral face of motor drive shaft 20 and aperture portion 51 becomes crooked halfway labyrinth structure.
In the present embodiment, encoder 6 is magnetic encoder.Therefore, be fixed with discoid magnet retainer 61 as back of the body yoke at the shaft end of the anti-outlet side L2 of motor drive shaft 20, and maintain the N utmost point and the S utmost point respectively magnetizes the encoder magnet 68(permanent magnet that a utmost point at the face of the anti-outlet side L2 of described magnet retainer 61).In the present embodiment, the part that the shaft end with motor drive shaft 20 of magnet retainer 61 is connected forms the round plate in large footpath, and the part that maintains encoder magnet 68 forms the round plate of the diameter path less than the diameter of the round plate in large footpath.Therefore, come the magnetic field of self brake 4 to be difficult for affecting encoder 6.
The end face of the anti-outlet side L2 of dividing plate 5 be fixed with by screw 108 to surround magnet retainer 61 and encoder magnet 68 around mode and stamping forming substrate holding plate 65.In substrate holding plate 65, being fixed with substrate 66 with encoder magnet 68 part in opposite directions by screw 106, in described substrate 66, be equiped with the Magnetic Sensors 67 such as MR element (magnetoresistive element) with encoder magnet 68 position in opposite directions.In the present embodiment, substrate holding plate 65 is made of magnetic material.
When the magnetic encoder 6 of described structure is set, if from the flux leakage of outside to encoder 6, the situation of error detection then can appear.Therefore, in the present embodiment, encoder housing 83 is used the magnetic sheets such as Ferrious material through processing, can prevent that therefore flux leakage from the outside is to encoder 6.
And, in the present embodiment, use the magnetic sheets such as Ferrious material of process processing as dividing plate 5, can prevent from thus the flux leakage of self brake 4 and motor part 2 to encoder 6.And, in the present embodiment, be arranged on the magnetic sheets such as Ferrious material that the brake location-plate 3 between motor part 2 and the brake 4 also uses process to process, can prevent from thus the flux leakage of self brake 4 and motor part 2 to encoder 6.
But, improve whole magnetic resistance by nonmagnetic substances such as brake casing 82 usefulness aluminium, can prevent from the magnetic flux of self brake 4 and motor part 2 to leak into encoder 6 via brake casing 82.
(the main effect of present embodiment)
As described above, in the band brake motor 1 of present embodiment, dispose brake location-plate 3 between the end face (reverse pumping of retainer 28 goes out side end face 281) of the anti-outlet side L2 of motor part 2 and the outlet side end face 401 of brake with stator 40, described brake location-plate 3 has the end face of the anti-outlet side L2 that is clamped in motor part 2 and brake with the looped end board 31 between the outlet side end face 401 of stator 40, thereby and from the inner peripheral of looped end board 31 to anti-outlet side L2 the vertical cylinder section 32 that contacts with the inner peripheral surface 402 of stator 40 of outstanding and brake.Therefore, brake location-plate 3 is positioned take motor part 2 as benchmark, thereby brake is positioned motor part 2 with stator 40 by brake location-plate 3.Consequently, looped end board 31 by brake location-plate 3, determine brake with the perpendicularity of stator 40 with respect to the end face of the anti-outlet side L2 of motor part 2, by the cylinder section 32 of brake location-plate 3, determined the axiality of 20 of brake usefulness stator 40 and motor part 2, motor drive shafts.Therefore, can be with respect to motor drive shaft 20 arrangement brake device 4 rightly.Therefore, in brake 4, be fixed in the friction plate 45(brake rotor of motor drive shaft 20) and be configured in motor part 2 around the brake of tubular high with the relative positional accuracy of 40 of stators, so friction plate 45 and plate 47 and armature 46 parallel opposed longer sides.Therefore, when brake 4 work, can not occur in and the unfavorable condition such as contact under the posture that friction plate 45 tilts with respect to plate 47 and armature 46, so braking characteristic is excellent, and local abrasion etc. do not occur, thereby brake 4 can works fine.
And, at the anti-outlet side journal bearing of journal bearing 29(of anti-outlet side L2 supporting motor drive shaft 20) and be configured in motor part 2, therefore, when comprising that journal bearing 29 has been assembled motor part 2, position and the posture of motor drive shaft 20 are determined.Therefore, the anti-outlet side L2 that can adopt after assembling motor part 2 in motor part 2 is the method for brake 4 fixedly, thereby can be with respect to motor drive shaft 20 arrangement brake device 4 rightly.
And motor part 2 has at motor with stator 21 and the brake retainer 28 with maintenance journal bearing 29 between the stator 40, and the end face of the anti-outlet side L2 of motor part 2 goes out side end face 281 by the reverse pumping of retainer 28 and consists of.Therefore therefore, brake location-plate 3 is configured rightly take retainer 28 as benchmark, can be with respect to motor drive shaft 20 arrangement brake device 4 rightly.
And, be positioned at than the positions of all side ring shapes zone 314 by anti-outlet side L2 and contact with 401 of the outlet side end faces of brake with stator 40 thereby the reverse pumping of brake location-plate 3 goes out the outer circumferential side annular section 313 that leaves from inner peripheral to radial outside in the side end face 312.Therefore, as long as the reverse pumping that consists of accurately looped end board 31 goes out the outer circumferential side annular section 313 in the side end face 312.
And, at the outlet side end face 311 of looped end board 31 lubricating oil adsorption element 9 is installed, therefore, when journal bearing 29 grades of motor part 2 were used lubricating oil, lubricating oil was difficult for entering brake 4 sides.Therefore, be difficult for occuring the situation that brake 4 can't appropriately be worked owing to lubricating oil.And, outlet side end face 311 at looped end board 31, be formed with the recess 316 that holds lubricating oil adsorption element 9 in the position of leaving from inner peripheral to radial outside, the lubricating oil that therefore, can prevent 9 absorption of lubricated oily adsorption element enters the situation in the brake 4 via interior all sides of brake 4.
And, in the band brake motor 1 of present embodiment, between brake 4 and encoder 6, be provided with closed brake device housing 82(tubular shell parts) the mode of opening of anti-outlet side L2 and the dividing plate 5 that consisted of by magnetic material.Therefore, can be suppressed to less from the situation that brake 4 leaks into encoder 6 sides magnetic flux.And because brake casing 82 is nonmagnetic, therefore whole magnetic resistance is high.Therefore, can be suppressed to less by brake casing 82 from the situation that brake 4 leaks into encoder 6 sides magnetic flux.Therefore, can effectively reduce from electromagnetic brake 4 to magnetic encoder the impact of 6 leakage field.And, in the present embodiment, owing to can effectively reduce from electromagnetic brake 4 to magnetic encoder the impact of 6 leakage field, therefore even comprising that the part that is provided with brake 4 and encoder 6 when inner motor axle 20 consists of whole length direction by magnetic material one such as Ferrious materials, also is difficult for exerting an influence from the magnetic flux that electromagnetic brake 4 leaks into magnetic encoder 6 via motor drive shaft 20.Therefore, motor drive shaft 20 need not to be provided with the part of brake 4 and encoder 6 by the nonmagnetic substance formation, and described nonmagnetic portion is partly engaged with the magnetic material that is positioned at motor part 2, therefore can make at low cost motor drive shaft 20.
And, because clamping has the brake location-plate 3 that is made of magnetic material between motor part 2 and brake 4, therefore can be suppressed to less from the situation that motor part 2 leaks into encoder 6 sides magnetic flux.And, can be suppressed to less from the situation that motor part 2 leaks into brake 4 sides magnetic flux.In addition, when can fully reduce to the affecting of the leakage field of encoder 6 by this structure the time, brake location-plate 3 also can be nonmagnetic.
And, in the present embodiment, the part of the aperture portion that is positioned at dividing plate 5 51 in the outer peripheral face of motor drive shaft 20 becomes and clips stage portion 204 and axial region with the level that outside dimension switches, thereby the inner peripheral surface of aperture portion 51 becomes the hole with the level that the outside dimension interlock internal diameter size with motor drive shaft 20 switches.Therefore, the gap between the inner peripheral surface of the aperture portion 51 of the outer peripheral face of motor drive shaft 20 and dividing plate 5 becomes crooked labyrinth structure, can prevent that therefore the Magnaglo that produces in brake 4 and motor part 2 etc. from entering encoder 6.
And, being fixed with substrate holding plate 65 at the end face of the anti-outlet side L2 of dividing plate 5, the Magnetic Sensor 67 of encoder 6 is installed in the substrate 66 that remains on the substrate holding plate 65.Thus, as long as be that Magnetic Sensor 67 remains on the structure on the dividing plate 5, can Magnetic Sensor 67 be set by simple structure thus.
Claims (12)
1. band brake motor, it comprises:
Motor part, it has motor rotor and motor stator; And
Brake, it has the brake stator that brake is used rotor and tubular, described brake is fixed in the motor drive shaft that extends with the rotor place at described motor with rotor, described brake uses stator arrangement around described motor drive shaft, and described brake is configured in the anti-outlet side of motor axis direction with respect to described motor part
Described band brake motor is characterised in that,
It comprises the brake location-plate,
Described brake location-plate comprises looped end board and cylinder section, the reverse pumping that described looped end board is clamped in described motor part goes out the side end face and described brake is used between the outlet side end face of stator, described cylinder section has than the large internal diameter size of the outside dimension of described motor drive shaft and vertically outstanding to anti-outlet side from the inner peripheral of described looped end board, thereby contacts with the inner peripheral surface of described brake with stator.
2. band brake motor according to claim 1 is characterized in that,
The anti-outlet side journal bearing that goes out the described motor drive shaft of side bearing in reverse pumping is configured in described motor part.
3. band brake motor according to claim 2 is characterized in that,
Described motor part has the retainer that keep described anti-outlet side journal bearing with stator and described brake between with stator at described motor,
The described reverse pumping of described motor part goes out the side end face and goes out the side end face by the reverse pumping of described retainer and consist of.
4. band brake motor according to claim 2 is characterized in that,
Be equipped with at the outlet side end face of described looped end board and be felt shape or porous lubricating oil adsorption element.
5. band brake motor according to claim 4 is characterized in that,
Described outlet side end face at described looped end board is formed with the recess that holds described lubricating oil adsorption element in the position of leaving from inner peripheral to radial outside.
6. band brake motor according to claim 1 is characterized in that,
The reverse pumping of described looped end board goes out the outer circumferential side annular section that leaves from inner peripheral to radial outside in the side end face and is positioned at than the position of all side ring shapes zone by anti-outlet side, described interior all side ring shapes zone than described outer circumferential side annular section in the inner part,
Described outer circumferential side annular section and the described brake described delivery side plane-plane contact of stator.
7. band brake motor according to claim 5 is characterized in that,
Described lubricating oil adsorption element has with the depth dimensions of described recess and equates or the gauge less than the degree of depth of described recess.
8. band brake motor according to claim 4 is characterized in that,
It is overlapping that the reverse pumping of the outer circumferential side of described recess part and described retainer goes out the part, side end face,
The outer circumferential side part of described lubricating oil adsorption element is gone out side end face and described recess clamping by the reverse pumping of described retainer,
Interior all sides part of described lubricating oil adsorption element goes out the side end face from the reverse pumping of described retainer to be exposed towards outlet side, and across gap and described anti-outlet side journal bearing in opposite directions.
9. band brake motor according to claim 6 is characterized in that,
The reverse pumping of described looped end board goes out to only have in the side end face described outer circumferential side annular section to become the datum level that contacts with the outlet side end face of stator with described brake,
Described outer circumferential side annular section as datum level has carried out secondary operations by grinding.
10. band brake motor according to claim 1 is characterized in that,
Described brake has: uses rotor at outlet side armature in opposite directions with described brake, and uses rotor at anti-outlet side plate in opposite directions with described brake,
Described brake with stator with described armature in outlet side position configuration in opposite directions around described motor drive shaft.
11. band brake motor according to claim 10 is characterized in that,
Described brake disposes with stator abreast in opposite directions with rotor, described armature, described plate and described brake.
12. band brake motor according to claim 3 is characterized in that,
Clamping has pad between described retainer and described brake location-plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-099117 | 2012-04-24 | ||
| JP2012099117A JP5936425B2 (en) | 2012-04-24 | 2012-04-24 | Motor with brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103378686A true CN103378686A (en) | 2013-10-30 |
| CN103378686B CN103378686B (en) | 2016-03-16 |
Family
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201854306U Expired - Lifetime CN203326802U (en) | 2012-04-24 | 2013-04-12 | Motor with brake |
| CN201310127950.6A Active CN103378686B (en) | 2012-04-24 | 2013-04-12 | Motor with brake |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201854306U Expired - Lifetime CN203326802U (en) | 2012-04-24 | 2013-04-12 | Motor with brake |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5936425B2 (en) |
| CN (2) | CN203326802U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186774A (en) * | 2015-09-07 | 2015-12-23 | 南京理工大学 | Integrated motor assembly and distributed driven vehicle |
| CN106165266A (en) * | 2014-10-10 | 2016-11-23 | 株式会社安川电机 | Motor and motor encoder |
| CN113833785A (en) * | 2020-06-24 | 2021-12-24 | 住友重机械工业株式会社 | Driver and brake |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5936425B2 (en) * | 2012-04-24 | 2016-06-22 | 日本電産サンキョー株式会社 | Motor with brake |
| JP6662213B2 (en) * | 2016-06-22 | 2020-03-11 | 株式会社ミツバ | Rotary motor and method of assembling rotary motor |
| JP6867767B2 (en) * | 2016-09-14 | 2021-05-12 | 東芝産業機器システム株式会社 | Electric motor with disc brake |
| JP2018057080A (en) * | 2016-09-26 | 2018-04-05 | 日本電産サンキョー株式会社 | Motor with brake |
| JP6981006B2 (en) * | 2017-02-03 | 2021-12-15 | 日本電産株式会社 | motor |
| CN109309428B (en) * | 2017-07-28 | 2023-05-02 | Weg电子设备有限公司 | Rotary generator |
| CN111030357A (en) * | 2019-12-04 | 2020-04-17 | 珠海格力电器股份有限公司 | Motor brake structure and servo motor |
| CN112611505B (en) * | 2020-12-30 | 2021-10-29 | 湖南启泰传感科技有限公司 | High-precision small dustproof pressure sensor with strong loading capacity |
| DE202022103346U1 (en) * | 2022-06-14 | 2023-09-22 | Dellner Bubenzer Germany Gmbh | Speedometer arrangement for an engine mounting brake, engine mounting brake and drive arrangement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1423626B1 (en) * | 2001-09-05 | 2004-12-08 | Chr. Mayr GmbH & Co. KG | Electromagnetic brake with variable spring rate damping members |
| CN2766442Y (en) * | 2005-01-26 | 2006-03-22 | 连云港市雄鹰电工电子研究所有限公司 | Electromagnetic brake motor |
| CN102128222A (en) * | 2010-12-30 | 2011-07-20 | 哈尔滨工业大学 | On track maintainable low-power consumption high-reliability space brake |
| CN102402240A (en) * | 2010-09-07 | 2012-04-04 | 阿尔卑斯电气株式会社 | rotary input device |
| CN203326802U (en) * | 2012-04-24 | 2013-12-04 | 日本电产三协株式会社 | Motor with brake |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59132359U (en) * | 1983-02-23 | 1984-09-05 | 株式会社東芝 | Rotating electric machine bearing device |
| JPS60125139A (en) * | 1983-12-08 | 1985-07-04 | Matsushita Electric Ind Co Ltd | Motor with electromagnetic brake |
| JPS60114565U (en) * | 1984-01-11 | 1985-08-02 | 松下電器産業株式会社 | Bearing device for small electric motor |
| JPH0326784Y2 (en) * | 1984-11-20 | 1991-06-10 | ||
| JPH0713409Y2 (en) * | 1987-05-29 | 1995-03-29 | 株式会社三ツ葉電機製作所 | Fan motor bearing device |
| JP3175591B2 (en) * | 1996-06-04 | 2001-06-11 | 松下電器産業株式会社 | Dustproof device for motor |
| JP5943694B2 (en) * | 2012-04-24 | 2016-07-05 | 日本電産サンキョー株式会社 | Motor with brake |
-
2012
- 2012-04-24 JP JP2012099117A patent/JP5936425B2/en active Active
-
2013
- 2013-04-12 CN CN2013201854306U patent/CN203326802U/en not_active Expired - Lifetime
- 2013-04-12 CN CN201310127950.6A patent/CN103378686B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1423626B1 (en) * | 2001-09-05 | 2004-12-08 | Chr. Mayr GmbH & Co. KG | Electromagnetic brake with variable spring rate damping members |
| CN2766442Y (en) * | 2005-01-26 | 2006-03-22 | 连云港市雄鹰电工电子研究所有限公司 | Electromagnetic brake motor |
| CN102402240A (en) * | 2010-09-07 | 2012-04-04 | 阿尔卑斯电气株式会社 | rotary input device |
| CN102128222A (en) * | 2010-12-30 | 2011-07-20 | 哈尔滨工业大学 | On track maintainable low-power consumption high-reliability space brake |
| CN203326802U (en) * | 2012-04-24 | 2013-12-04 | 日本电产三协株式会社 | Motor with brake |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106165266A (en) * | 2014-10-10 | 2016-11-23 | 株式会社安川电机 | Motor and motor encoder |
| CN105186774A (en) * | 2015-09-07 | 2015-12-23 | 南京理工大学 | Integrated motor assembly and distributed driven vehicle |
| CN113833785A (en) * | 2020-06-24 | 2021-12-24 | 住友重机械工业株式会社 | Driver and brake |
| US11668362B2 (en) | 2020-06-24 | 2023-06-06 | Sumitomo Heavy Industries, Ltd. | Actuator and brake |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013229973A (en) | 2013-11-07 |
| CN203326802U (en) | 2013-12-04 |
| CN103378686B (en) | 2016-03-16 |
| JP5936425B2 (en) | 2016-06-22 |
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