CN104953757A - Drain valve driving device - Google Patents
Drain valve driving device Download PDFInfo
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- CN104953757A CN104953757A CN201510144056.9A CN201510144056A CN104953757A CN 104953757 A CN104953757 A CN 104953757A CN 201510144056 A CN201510144056 A CN 201510144056A CN 104953757 A CN104953757 A CN 104953757A
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- gear
- rotor hub
- inductor
- draining valve
- induction
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention provides a drain valve driving device which is capable of preventing axial position deviation of an inductor and then inhibiting vibration of the inductor during a rotation process even when errors of a magnetic center of components of an induction motor system occur, and is thereby capable of avoiding device service lifetime decrease due to side abrasion of a bearing part of the inductor. According to the invention, a permanent magnet is fixed on the inner peripheral face of a main body of a rotor in the circumferential direction. The electric motor provided with an induction rotary body having a cylindrical induction ring part made of a non-magnetic conductor is arranged on the inner peripheral side of the permanent magnet. The axial magnetic center of the induction rotary body is arranged at a position which is more adjacent to a side with an opening part of the rotor compared with the axial magnetic center of the permanent magnet. In this way, a prior technical problem is solved.
Description
Technical field
The present invention relates to a kind of draining valve drive unit, say in more detail, relate to a kind of draining valve drive unit with induction electric machine mechanism.
Background technology
The clutch described in following patent documentation 1 by have employed magnetic induction connects or cuts off the gear motor from motor to driven member transmission of drive force.
Patent documentation 1: Japanese Unexamined Patent Publication 2010-276093 publication
The axial magnetic center that axial length and the allocation position of these parts of the induction electric machine mechanism of the nonmagnetic conductive ring 13b of magnetic induction rotary body 13 and the formation such as back-yoke ring 13c, magnetic induction magnet 112 patent documentation 1 are generally designed to these parts is consistent diametrically.
But, the magnetic center of these parts can because manufacturing time and assembling time accumulated tolerance and not necessarily always consistent with the situation of calculating, especially when magnetic induction rotary body 13 magnetic center from the Fig. 3 (hereinafter referred to as " with figure ") patent documentation 1 be in than magnetic induction magnet 112 magnetic center on the lower, because acting on the power making magnetic center be consistent diametrically between magnetic induction rotary body 13 and magnetic induction magnet 112, and magnetic induction rotary body 13 may be caused to become a little towards the problem of the state of floating with figure top.
Because magnetic induction rotary body 13 floats to scheming top from original position, therefore magnetic induction rotary body 13 diminishes with the sliding contact area of rotation supporting portion 11a, and magnetic induction rotary body 13 vibration when rotated increases.When the vibration of magnetic induction rotary body 13 increases, magnetic induction rotary body 13 can be there is attracted to specific direction because of the multiple reasons of the position etc. of the position at the little position of the air gap stenosis between magnetic induction rotary body 13 and magnetic induction magnet 112 and the amount of magnetization of magnetic induction magnet 112 part larger than other parts and carry out situation about rotating with the state tilted, thus magnetic induction rotary body 13 can be caused to produce the problem of partial wear with the sliding surface of rotation supporting portion 11a.
When rotation supporting portion 11a produces partial wear, resistance can be produced to the rotation of magnetic induction rotary body 13, and described rotary load is also passed to sector gear 28 by braking pinion 13a.When rotary load becomes larger than the active force of the back-moving spring 27 of sector gear 28, power to stator 15 even if disconnect, sector gear 28 also cannot turn back to original position, consequently, shank 30 may be caused from postrotational position cannot to turn back to the bad problem of original position.
Summary of the invention
In view of the above problems, problem to be solved by this invention is to provide a kind of draining valve drive unit, even if described draining valve drive unit is when the magnetic center of the parts forming induction electric machine mechanism produces a little error, also can prevent the axial location of inductor from departing from, and then inhibit inductor vibration when rotated, thus can prevent device lifetime from reducing because of the partial wear of the bearing portion of inductor.
In order to solve above-mentioned problem, draining valve drive unit of the present invention has: motor, and described motor rotates along a direction; And first transmission group, described first transmission group is the gear train actuating force of described motor being delivered to the draining valve as driven member, described motor has rotor, and described rotor comprises: rotor hub portion, and described rotor hub portion is fixed axle supporting for rotating; And rotor main body, described rotor main body cylindrically, and described rotor main body rotates integrally with described rotor hub portion by making an end winding support of the axis of described rotor main body in described rotor hub portion and is formed with peristome in another end of described rotor main body, circumferentially permanent magnet is fixed with at the inner peripheral surface of described rotor main body, induction rotary body is configured with in the inner circumferential side of described permanent magnet, described induction rotary body comprises: inductor axle portion, and described inductor axle portion is supported as rotating by described rotor hub portion; And induction ring portion, described induction ring portion rotates integrally with described inductor axle portion by being fixed on described inductor axle portion, and described induction ring portion has: inductor, and described inductor cylindrically and by non-magnetic conductor is formed; And be attracted portion, described in be attracted portion and be made up of ferromagnetic, the magnetic center that the portion of being attracted described in described induction ring portion is configured to the axis of described induction rotary body is positioned at magnetic center than the axis of described permanent magnet by the position of described peristome side.
Owing to being designed in advance by the magnetic center of the axis by induction rotary body configure by peristome side than the magnetic center of the axis of permanent magnet, even if when magnetic center produces error because of accumulated tolerance, induction rotary body also can be drawn by the opposite side towards peristome side, therefore, it is possible to prevent responding to rotary body to produce the phenomenon of floating towards peristome side, and then suppress induction rotary body to vibrate when rotated, thus can prevent device lifetime from reducing because responding to the partial wear of the bearing portion of rotary body.
When the described portion of being attracted is the back yoke portion of the cylindrical shape of the inner circumferential side being fixed on described inductor, by the axial centre in described back yoke portion being arranged on the position leaning on described peristome side than the axial centre of described permanent magnet, thus the axial magnetic center configuration of described induction rotary body can be leaned on the position of peristome side at the axial magnetic center than permanent magnet.Further, the magnetic line of force through inductor is strengthened, along with permanent magnet rotates and the rotating torques increase of the induction rotary body of rotation by permanent magnet and the clamping of back yoke portion by inductor.
Further, preferred described inductor axle portion is supported as rotating by described rotor hub portion by the part of the axis of the inner peripheral surface in described inductor axle portion and described rotor hub portion sliding contact.
Due to the electromagnetic induction effect that induction rotary body is the vortex flow produced by rotary type permanent-magnet, along with permanent magnet rotates and the induction electric machine mechanism of rotation, therefore the torque of its torque ratio synchronous motor is little.Thus, by limiting the sliding contact area in inductor axle portion and rotor hub portion, the resistance to sliding of induction rotary body can be reduced, thus effectively can utilize the torque of induction rotary body.According to motor involved in the present invention, owing to preventing to respond to the rotary body phenomenon floating towards peristome side, even if therefore the sliding contact area between inductor axle portion and rotor hub portion is minimized the reliability also can not damaged as product.
In this case, can consider to adopt following this structure: by the axial both ends of the inner peripheral surface in described inductor axle portion diametrically with described rotor hub portion sliding contact, and the end of the side contrary with described peristome side in the axial end portion in described inductor axle portion in the axial direction with described rotor hub portion sliding contact, and make described inductor axle portion by the supporting of described rotor hub portion for rotating.According to motor involved in the present invention, induction rotary body is drawn by the opposite side towards side, rotor openings portion by the effect of the magnetic attraction between induction rotary body and permanent magnet, thus inductor axle portion in the axial direction with the reliably sliding contact of rotor hub portion, therefore, further suppress induction rotary body to tilt.
Further, may also be following this structure: draining valve drive unit involved in the present invention also has: clutch, the transmission of the actuating force of being undertaken by described first transmission group is switched to " connection " state or "off" state by described clutch; And second transmission group, described second transmission group is the gear train actuating force of described motor being delivered to described clutch, pinion part is formed in the end of the described peristome side in described inductor axle portion, described pinion part is the gear part with the radius less than the radius of described induction ring portion, described second transmission group has and engages and the geared parts rotated along with the rotation of described pinion part with described pinion part, is connected with the force application part exerted a force towards original position direction by described geared parts at described geared parts place.
According to motor involved in the present invention, by preventing that responding to the rotary body phenomenon floating towards peristome side suppresses induction rotary body to vibrate when rotated, thus also prevent the partial wear of the bearing portion responding to rotary body.Thus, even if when have employed the structure making the geared parts utilizing force application part to turn back to original position engage with the pinion part of induction rotary body, the recurrence action of geared parts also can not be obstructed because responding to the rotary load of rotary body.
Invention effect
According to draining valve drive unit involved in the present invention, even if when the magnetic center of the parts forming induction electric machine mechanism creates error, also can prevent the axial location of inductor from departing from, and inductor vibration when rotated can be suppressed, thus can prevent device lifetime from reducing because of the partial wear of the bearing portion of inductor.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of the draining valve drive unit in present embodiment.
Fig. 2 is the cutaway view of the internal structure showing motor.
Fig. 3 is the figure launching draining valve drive unit along transmission group.
Fig. 4 is by the vertical view of draining valve drive unit under the state laid down at upper shell.
Fig. 5 is by the vertical view of draining valve drive unit under the state laid down at upper shell and the first transmission group.
Fig. 6 is the outside drawing of rotor, the second transmission group and the first lock gear.
Fig. 7 is for being undertaken decomposing by clutch (planetary gears) and from the figure of top view.
Fig. 8 is for being undertaken clutch (planetary gears) decomposing and the figure observed from below.
Embodiment
(overall structure)
Below, be described in detail with reference to the execution mode of accompanying drawing to draining valve drive unit 1 involved in the present invention.In addition, upper and lower (be upper with upper shell 91 side, under with lower house 92 side being) that refer to up and down in FIG in below illustrating.Further, " original position " refers to the position of draining valve drive unit 1 each component parts when stopping.
Draining valve drive unit 1 involved by present embodiment has: motor 10, and described motor 10 is as drive source; First transmission group, described first transmission group is the gear train actuating force of motor 10 being delivered to the draining valve 95 as driven member; Clutch, the transmission of the actuating force of being undertaken by the first transmission group is switched to " connection " state or "off" state by described clutch; Second transmission group, described second transmission group is the gear train actuating force of motor 10 being delivered to clutch, and these parts (except belt wheel 26 described later and wire rod 27) are accommodated in the housing 90 be made up of upper shell 91 and lower house 92.
(electric motor structure)
The cutaway view of the structure of motor 10 of Fig. 2 for showing draining valve drive unit 1 and having.Interchange (AC) motor of motor 10 for only being rotated towards a direction by reversal prevention mechanism described later.Motor 10 comprises: motor field frame 11, and described motor field frame 11 is made up of the magnetic metal of the roughly cup-shaped of upper surface open; Stator 12, described stator 12 configures along the inner peripheral surface of motor field frame 11; Rotor 51, described rotor 51 is configured at the inner circumferential side of stator 12; Internal magnet 54; And induction rotary body 55, described internal magnet 54 and described induction rotary body 55 are all fixed on the inner circumferential side of rotor 51.
Be pressed in the bottom center of motor field frame 11 and be fixed with the rotor fulcrum 130 as fixed axis formed by metals such as stainless steels, and described rotor fulcrum 130 extends upward.The upper surface of stator 12 is covered by support plate 121, and described support plate 121 is made up of the magnetic metal at the scope opening being configured with rotor 51.Be formed with the through hole that the bottom for bolster is pressed at support plate 121 place, described support shaft supports forms the parts of the first transmission group (except upper motor gear 21, belt wheel 26 and wire rod 27) and the second transmission group.
Rotor 51 comprises: external magnet 53, and described external magnet 53 is the rotor main body of the cylindrical shape be made up of permanent magnet; And rotor hub portion 52, the resin component that described rotor hub portion 52 is formed in external magnet 53 for insert part forming, and supported as rotating by rotor fulcrum 130.External magnet 53 rotates integrally with rotor hub portion 52 by being fixed on rotor hub portion 52.Rotor 51 is configured in the inner circumferential side of stator 12 in the mode that external magnet 53 is opposed with stator 12.
The portion that is fixed 531 that the inner peripheral surface that external magnet 53 has portion near bottom extends towards radial center, and the upper end of external magnet 53 becomes peristome.Be formed with rotor-side at peristome and reverse preventing portion 532, described rotor-side reverses the reversal prevention mechanism that preventing portion 532 forms motor 10 described later.Rotor-side reverses preventing portion 532 and extends upward than the upper surface of support plate 121.
Rotor hub portion 52 comprises: axle portion 521, and described axle portion 521 has the through hole running through insertion for rotor fulcrum 130; And flange part 522, described flange part 522 extends from the bottom in axle portion 521 towards radial outside.Say in more detail, be formed with stepped the first expanding end difference 523 and the second end difference 524 towards flange part 522 side in the nearby portion by flange part 522 in rotor hub portion 52, flange part 522 is further towards the part that radial outside extends from the second end difference 524.Flange part 522 is shaped as the state by the upper surface in the portion that is fixed 531 of external magnet 53 and lower surface clamping, and is connected with external magnet 53 in rotor hub portion 52.Be formed with lower holding section 525 at the upper surface in axle portion 521, described lower holding section 525 is four juts circumferentially configured at equal intervals.
The internal magnet 54 as permanent magnet is circumferentially fixed with at the inner peripheral surface of the external magnet 53 of rotor 51.
Induction rotary body 55 is configured with in the inner circumferential side of internal magnet 54.Induction rotary body 55 comprises: induction ring portion 57; And inductor axle portion 56, the resin component that described inductor axle portion 56 is formed in induction ring portion 57 for insert part forming, and supported as rotating by rotor hub portion 52.Induction ring portion 57 rotates integrally with inductor axle portion 56 by being fixed on inductor axle portion 56.
Induction ring portion 57 comprises: copper pipe 571, and described copper pipe 571 is the inductor of the cylindrical shape be made up of the copper as non-magnetic conductor; And iron pipe 572, described iron pipe 572 is made up of the iron as ferromagnetic, and is attracted body for the magnetic attraction effect for internal magnet 54, and is the back yoke portion of cylindrical shape of the inner circumferential side being pressed into copper pipe 571.Copper pipe 571 and iron pipe 572 have the portion that is fixed 5711 and the portion 5721 that is fixed that extend towards radial center side from the inner peripheral surface of respective upper end respectively.
Inductor axle portion 56 comprises: cylindrical portion 561, and described cylindrical portion 561 runs through insertion for the axle portion 521 in rotor hub portion 52; And inductance loop joint portion 562, the portion that is fixed 5711 of copper pipe 571 and the portion that is fixed 5721 of iron pipe 572 are connected with inductor axle portion 56 by described inductance loop joint portion 562.
Be formed with pinion part 563 in the upper end of cylindrical portion 561, described pinion part 563 is for having the gear part of the radius less than the radius of induction ring portion 57.Pinion part 563 extends upward than the upper surface of support plate 121.The teeth portion forming the sector gear 42 as geared parts of the second transmission group described later engages with pinion part 563.The draft helical spring 435 as force application part exerted a force towards original position direction by sector gear 42 is connected with at sector gear 42.
Only upper end in the inner peripheral surface of cylindrical portion 561 and bottom and rotor hub portion 52 sliding contact.Say in more detail, the upper end of cylindrical portion 561, namely the inner peripheral surface of pinion part 563 diametrically with axle portion 521 sliding contact, the inner peripheral surface of the bottom of cylindrical portion 561 contacts with the side slip of the first end difference 523 diametrically, and the bottom surface of this bottom contacts with the upper surface slide of the second end difference 524 in the axial direction.
Because induction rotary body 55 is for rotating the electromagnetic induction effect of the vortex flow produced and the induction electric machine mechanism that rotates along with internal magnet 54 and rotate by internal magnet 54, therefore its torque ratio is little as the torque of the rotor 51 of synchronous motor mechanism.Thus, define by cylindrical portion 561 and the sliding contact area in rotor hub portion 52 are set as that required Min. suppresses resistance to sliding, thus effectively utilize the structure of torque.
Inductance loop joint portion 562 is configured as and is clamped thus the state supported the inner peripheral surface of iron pipe 572 by the lower surface in the upper surface in the portion of being fixed 5711,5721 and the portion 5721 that is fixed.The lower surface in portion 5711 of being fixed is supported by the upper surface in the portion of being fixed 5721, and the inner peripheral surface of copper pipe 571 is supported by the outer peripheral face of iron pipe 572.
At this, the position being centrally located at side more top than the center of the axial length of internal magnet 54 of the axial length of iron pipe 572.By this structure, the magnetic center namely responding to the axis of rotary body 55 of induction ring portion 57 is pre-configured in the position of side more top than the magnetic center of the axis of internal magnet 54.Thus, even if magnetic center produces a little error because of accumulated tolerance, as long as but increase and decrease will respond to the power of rotary body 55 traction downwards, and induction rotary body 55 would not float to the peristome side of rotor 51.By guaranteeing that the slide area responding to script between rotary body 55 and rotor hub portion 52 suppresses to respond to rotary body 55 vibration when rotated, thus can prevent device lifetime from reducing because of the partial wear in rotor hub portion 52.
(the first transmission group)
Below, be described in detail with reference to Fig. 3 to Fig. 8 other structures to draining valve drive unit 1.First transmission group forms the output system actuating force of motor 10 being delivered to draining valve 95.Described first transmission group has multiple power transmission member.In detail, described first transmission group has: upper motor gear 21; Input side gear 22, described input side gear 22 engages with upper motor gear 21; Outlet side gear 23, described outlet side gear 23 rotates along with the rotation of input side gear 22 when clutch is in " connection " state; Compound gear 24, described compound gear 24 engages with outlet side gear 23; Cam wheel 25, described cam wheel 25 engages with compound gear 24; Belt wheel 26, described belt wheel 26 rotates integrally with cam wheel 25; And wire rod 27, described wire rod 27 is rolled-up by the rotation of belt wheel 26.It is inner that input side gear 22 in the middle of these parts, outlet side gear 23 and compound gear 24 are accommodated in housing 90, and by each support shaft supports for rotating freely, described each fulcrum is pressed into and is fixed to support plate 121, and is formed by metals such as stainless steels.In addition, input side gear 22 and outlet side gear 23 are also the gears being formed in the clutch (differential gear train formed by planetary gearsets) described in detail below.
Upper motor gear 21 is supported as can to rotate and can the horizontal gear of movement in the axial direction by rotor fulcrum 130, and is supported in rotor hub portion 52.Locked projection 211 is formed with at the upper surface of upper motor gear 21.Upper motor gear locking projection 62 and the described locked projection 211 of fan-shaped handle 60 described later act on.And, the upper holding section 2111 engaged with lower holding section 525 is formed at the lower surface of upper motor gear 21, upper motor gear 21 is exerted a force above axis direction by compression helical spring 48, described compression helical spring 48 to be configured between lower holding section 525 and upper holding section 2111 and with rotor fulcrum 130 arranged coaxial, the rotor 51 defining lower holding section 525 is exerted a force below axis direction by compression helical spring 48.
Input side gear 22 engages with upper motor gear 21.Input side gear 22 is the gear forming planetary gearsets, i.e. central gear.Input side gear 22 has the relatively large big gearing part of diameter 221 little little teeth portion 222 relative to diameter.Upper motor gear 21 engages with the big gearing part 221 of input side gear 22, and input side gear 22 rotates along with the rotation of upper motor gear 21.
When clutch is in " connection " state, the actuating force of motor 10 is delivered to outlet side gear 23 by upper motor gear 21, and details carries out describing later.Outlet side gear 23 is formed by as three planetary gears 231 of gear and planet supporting gear 232 that form planetary gearsets.Planetary gear 231 respectively by three planetary gear support shaft supports for rotating freely, three described planetary gear bolsters are outstanding and circumferentially arrange at equal intervals from the upper surface of planet supporting gear 232.Be fixed with anti-decylization 233 to come off to prevent planetary gear 231 in the upper end of planet gear support axle.Planet supporting gear 232 has gear part 2321 in the side contrary with the face being provided with planetary gear 231.Planetary gear 231 engages with the little teeth portion 222 of input side gear 22.
Compound gear 24 engages with planet supporting gear 232.In detail, compound gear 24 has the relatively little little teeth portion 241 of the diameter of top side and the relatively large big gearing part 242 of diameter on the lower coaxially, and described big gearing part 242 engages with the gear part 2321 of planet supporting gear 232.Thus, compound gear 24 rotates along with the rotation of planet supporting gear 232.
Cam wheel 25 engages with compound gear 24.In detail, the gear part 251 of cam wheel 25 engages with the little teeth portion 241 of compound gear 24.Thus, cam wheel 25 rotates along with the rotation of compound gear 24.Cam path 252 is formed in the upper surface being formed with the part of gear part 251 of the periphery of cam wheel 25.The engaging protrusion 61 being formed at the lower surface of fan-shaped handle 60 engages with described cam path 252.About described fan-shaped handle 60 structure and effect will describe later.
At cam wheel 25, place is fixed with belt wheel 26.If belt wheel 26 rotates integrally with cam wheel 25, then do not limit the fixing means of belt wheel 26.Thus, belt wheel 26 rotates along with the rotation of cam wheel 25.Further, belt wheel 26 is exposed at the outside of housing 90.Further, wire casing 261 is formed with in the periphery of belt wheel 26.
One end of wire rod 27 is fixed with at belt wheel 26.If the fixing means of wire rod 27 can reliably prevent wire rod 27 from coming off, then without particular limitation of.When belt wheel 26 rotates towards the direction of drawing wire rod 27, wire rod 27 is rolled-up in the mode being embedded into wire casing 261.Be fixed with draining valve 95 in another side of wire rod 27, the loads such as the active force produced for the spring in the direction turning back to original position while closing (spool position) all the time and magnetic force are applied to draining valve 95.Draining valve 95 is rolled and valve opening by belt wheel 26 by wire rod 27.
(clutch)
The effect of clutch is that the transmission of the actuating force of being undertaken by the first transmission group (output system) is switched to " connection " state or "off" state.The action of the clutch in present embodiment have employed the differential gear train formed by planetary gearsets, and described planetary gearsets has input side gear 22 (central gear), outlet side gear 23 (planetary gear 231 and planet supporting gear 232) and fixed gear 31 (ring gear).
The hole that the little teeth portion 222 of the input side gear 22 being provided as central gear is through is provided with in the central authorities of the fixed gear 31 as ring gear.Fixed gear 31 has outer toothed portion 311 and interior teeth portion 312.The outer toothed portion 311 of fixed gear 31 is positioned at the downside of the big gearing part 221 of input side gear 22, and engages with the second lock gear 33 as the gear forming the second transmission group described later.That is, when prevention second lock gear 33 rotates, the rotation of fixed gear 31 is also prevented from.The interior teeth portion 312 of fixed gear 31 engages with three planetary gears 231.
In the clutch with this structure, decide planetary gear 231 by whether stoping the rotation of fixed gear 31 and whether to revolve round the sun and whether planet supporting gear 232 rotates.When stoping fixed gear 31 to rotate, when input side gear 22 rotates, due to teeth portion 312 non rotating in fixed gear 31, the planetary gear 231 therefore engaged with the little teeth portion 222 of input side gear 22 to revolve round the sun and planet supporting gear 232 rotates along described interior teeth portion 312.On the other hand, when not stoping fixed gear 31 to rotate, because fixed gear 31 dallies, though therefore input side gear 22 rotate and planetary gear 231 for revolution, planet supporting gear 232 also non rotating.
That is, if stop fixed gear 31 to rotate, then the first transmission group becomes " connection " state, if do not stop the rotation of fixed gear 31, then the first transmission group becomes "off" state.If the first transmission group is switched to " connection " state by clutch, state that is, output system is in " connection ", then the actuating force of motor 10 is delivered to draining valve 95 by the first transmission group.On the other hand, if the first transmission group is switched to "off" state by clutch, that is, output system is in "off" state, then the actuating force of motor 10 is cut off (cutting off between input side gear 22 and outlet side gear 23) by clutch, and is not delivered to draining valve 95.
Clutch in present embodiment also has the first lock gear 32 and the second lock gear 33 as the parts being applied to fixed gear 31.First lock gear 32 has: discoid part, is formed towards the outstanding locked portion 321 as projection (pawl) of radial outside at the outer peripheral face of described discoid part; And the first locking teeth portion 322, described first locking teeth portion 322 is positioned at than described discoid part position on the lower and external diameter is less than the external diameter of discoid part.Second lock gear 33 has the relatively large large footpath of diameter second and locks teeth portion 331 and the relatively little path second of diameter locks teeth portion 332.Large footpath second locks teeth portion 331 and first and locks teeth portion 322 and engage.Path second locks teeth portion 332 and engages with the outer toothed portion 311 of the fixed gear 31 forming planetary gearsets.When the lock handle 432 (aftermentioned) of sector gear 42 becomes the state blocked by the locked portion 321 of the first lock gear 32, the rotation of the first lock gear 32 is prevented from.When the first lock gear 32 rotate become the state be prevented from time, the second lock gear 33 engaged with the first lock gear 32 and the rotation of fixed gear 31 of engaging with the second lock gear 33 are prevented from, and the first transmission group becomes " connection " state.
(the second transmission group)
Second transmission group forms the clutch operating system actuating force of motor 10 being delivered to clutch.The sector gear 42 that second transmission group has pinion part 563 and engages with pinion part 563.
Sector gear 42 has the teeth portion 422 engaged with pinion part 563, and rotates along with the rotation of pinion part 563.
Further, be formed at sector gear 42 place and reverse preventing portion 423, described reverse preventing portion 423 is given prominence to downward from the end side of teeth portion 422.When the rotor 51 being in original position has carried out reverse, rotor-side has reversed preventing portion 532 and has conflicted with the reverse preventing portion 423 of sector gear 42.The rotor 51 reversed be rotated through this conflict time the impact that causes be modified into rotating forward.
At sector gear 42, place is formed with lock handle 432, and described lock handle 432 is given prominence to from the shaft-like part running through insertion for sector gear bolster 430 towards radial outside.When sector gear 42 rotates towards the direction making lock handle 432 near the first lock gear 32, the state that the locked portion 321 that lock handle 432 is formed as the outer surface being formed on the first lock gear 32 is blocked.Thus, the rotation of the first lock gear 32 is prevented from.
(force application mechanism)
Force application mechanism is the mechanism exerted a force towards direction clutch being switched to "off" state by the second transmission group.In the present embodiment, draft helical spring 435 is adopted.One end of draft helical spring 435 is hung in the first SF portion 433 being formed at sector gear 42, and the other end is hung in and is pressed into and is fixed on the second SF portion 434 of support plate 121.By described draft helical spring 435, and sector gear 42 is left the direction force of the first lock gear 32 (locked portion 321) towards lock handle 432.
(other structures)
Compound gear 24 is configured with fan-shaped handle 60.Engaging protrusion 61 (with reference to Fig. 1) is formed at the lower surface of fan-shaped handle 60.Described engaging protrusion 61 engages with the cam path 252 (with reference to Fig. 1) of the upper surface being formed at cam wheel 25.Further, upper motor gear locking projection 62 and not shown tilting cam is formed with from the lower surface of same fan-shaped handle 60.The function of these parts as mentioned below.Fan-shaped handle 60 by the engaging protrusion 61 engaged with cam path 252 with the action action in linkage of cam wheel 25.When fan-shaped handle 60 moves to assigned position (wire rod 27 is rolled onto assigned position), upper motor gear locking projection 62 is applied to the locked projection 211 of upper motor gear 21, stops the rotation of upper motor gear 21.Meanwhile, be released by the upper motor gear 21 that tilting cam presses below axis direction, and moved above axis direction by compression helical spring 48.Thus, the upper holding section 2111 of upper motor gear 21 is removed with the engaging of the lower holding section 525 in rotor hub portion 52.That is, the power being formed as motor 10 is not passed to the state of upper motor gear 21 (in detail with reference to action specification described later).
(action of draining valve drive unit)
The action of the draining valve drive unit 1 with said structure is described.In the following description, to by the transmission of power of motor 10 to be in original position draining valve 95 1) transmission of power action and cut off the transmission of power of motor 10 and draining valve 95 turned back to 2 of original position) power cut action carries out separately explanation.
1) transmission of power action
Under the state (wire rod 27 is not by state that belt wheel 26 is rolled) that draining valve 95 is in original position, upper motor gear 21 is resisted the active force of compression helical spring 48 by the tilting cam of fan-shaped handle 60 and is pressed by towards downside, thus upper holding section 2111 engages with lower holding section 525.If make motor 10 drive along a direction and make rotor 51 rotate from this state, then the upper motor gear 21 with the upper holding section 2111 engaged with the lower holding section 525 in the rotor hub portion 52 being formed at rotor 51 rotates.Further, respond to the internal magnet 54 that rotary body 55 is fixed in the inner side of rotor 51 respond to and rotate.Because induction rotary body 55 rotates, pinion part 563 also rotates.Copper pipe 571 is by clamping by internal magnet 54 with as the iron pipe 572 of back yoke, and the magnetic line of force through copper pipe 571 strengthens, thus the rotating torques of the induction rotary body 55 rotating along with internal magnet 54 and rotate increases.
When pinion part 563 rotates, the sector gear 42 with the teeth portion 422 engaged with pinion part 563 rotates.Sector gear 42 resists the active force of draft helical spring 435, thus rotates towards the direction making lock handle 432 near the first lock gear 32 (locked portion 321).
In the motion track that lock handle 432 enters into locked portion 321, and when being formed as being locked the state blocked in portion 321, the rotation of the first lock gear 32 becomes the state be prevented from.When the rotation of the first lock gear 32 becomes the state be prevented from, have and to lock the rotation that large footpath second that teeth portion 322 engages locks the second lock gear 33 of teeth portion 331 with first of the first lock gear 32 and become the state be prevented from, further, there is the rotation locking the fixed gear 31 of the outer toothed portion 311 that teeth portion 332 engages with the path second of the second lock gear 33 and also become the state be prevented from.
As mentioned above, fixed gear 31 forms the planetary gearsets of clutch.Therefore, when the rotation of fixed gear 31 becomes the state be prevented from, the transmission of power of the first transmission group becomes " connection " state by clutch, and the actuating force of motor 10 is formed as the state that can be delivered to draining valve 95 by the first transmission group.
On the other hand, the upper motor gear 21 rotated together along with rotor hub portion 52 by the driving of motor 10 is engaged with the big gearing part 221 of the input side gear 22 (central gear) forming planetary gearsets.Therefore, input side gear 22 rotates along with the rotation of upper motor gear 21.
Three planetary gears 231 forming outlet side gear 23 engage with the outside of the little teeth portion 222 of input side gear 22.The interior teeth portion 312 of fixed gear 31 engages with the outside of the planetary gear 231 circumferentially arranged at equal intervals.As mentioned above, the rotation of fixed gear 31 is in by s state that the second lock gear 33 stops.Therefore, when input side gear 22 rotates, planetary gear 231 revolves round the sun around the little teeth portion 222 of input side gear 22.When planetary gear 231 revolves round the sun, the planet supporting gear 232 of planetary gear bearing 231 rotates.That is, the rotary power of input side gear 22 is passed to outlet side gear 23 completely.
In addition, if when the rotation of the first Lock Part 32 is not in the state be prevented from, that is, if input side gear 22 rotates when the rotation of fixed gear 31 is not in the state be prevented from, fixed gear 31 dallies across planetary gear 231.This is because following cause: the load having transmission group self in the power transmission group that star supporting gear 232 of being expert at is later and the load applied draining valve 95, therefore, the rotary power of input side gear 22 is passed to fixed gear 31 side completely.
The big gearing part 242 of compound gear 24 engages with the gear part 2321 of planet supporting gear 232.Therefore, compound gear 24 rotates along with the rotation of planet supporting gear 232.
The gear part 251 of cam wheel 25 engages with the little teeth portion 241 of compound gear 24.Therefore, cam wheel 25 rotates along with the rotation of compound gear 24.
When cam wheel 25 rotates, the belt wheel 26 being fixed on the upper end of cam wheel 25 rotates.When belt wheel 26 rotates, the wire rod 27 being fixed on belt wheel 26 is rolled-up along wire casing 261.Be fixed with draining valve 95 at the end of wire rod 27, thus discharge outlet be pulled up by draining valve 95 and open, starting draining.
In addition, wire rod 27 is stopped by following manner by the action that belt wheel 26 is rolled.When cam wheel 25 rotates to assigned position the amount of the rolled-up regulation of wire rod 27 (time), the fan-shaped handle 60 with the engaging protrusion 61 engaged with cam path 252 rotates towards the direction leaving cam wheel 25.Like this, when fan-shaped handle 60 rotates, the upper motor gear locking projection 62 that fan-shaped handle 60 has abuts with the locked projection 211 of upper motor gear 21 circumference.Thus, the rotation of upper motor gear 21 becomes the state be prevented from.Further, be released by the upper motor gear 21 that the tilting cam of fan-shaped handle 60 presses below axis direction, and moved above axis direction by compression helical spring 48.Thus, the upper holding section 2111 of upper motor gear 21 engages with the lower holding section 525 in rotor hub portion 52 is removed, and the power of motor 10 becomes the state not being delivered to upper motor gear 21.When the rotation of upper motor gear 21 is prevented from, the action forming each parts of the first transmission group also stops.That is, wire rod 27 is stopped by the action that belt wheel 26 is rolled, and belt wheel 26 becomes the state (maintaining the state that discharge outlet is open) being maintained at described winding position.
Like this, by the transmission of power release of the transmission of power of motor 10 to draining valve 95.
2) power cut action
When draining valve 95 is turned back to original position from the state that above-mentioned transmission of power action has terminated, stop the driving (stopping powering to motor 10) of motor 10.Thus, the magnetic induction force be arranged between the internal magnet 54 of the inner side of rotor 51 and induction rotary body 55 disappears.That is, resist the active force of draft helical spring 435 and clutch is disappeared towards the magnetic induction force of the direction action the first transmission group being switched to " connection " state.Thus, sector gear 42 utilizes the active force of draft helical spring 435, and the direction leaving the first lock gear 32 (locked portion 321) towards lock handle 432 rotates.That is, the state that is prevented from of the rotation of the first lock gear 32 is removed, and the first transmission group is switched to "off" state by clutch.In addition, sector gear 42 and pinion part 563 (induction rotary body 55) are rotated by the direction of this active force towards return-to-home position.
In the present invention, by preventing to respond to the phenomenon that rotary body 55 floats to the peristome side of rotor 51, suppressing induction rotary body 55 to vibrate when rotated, thus also preventing the partial wear in rotor hub portion 52.Thus, even if when have employed the structure making the sector gear 42 utilizing draft helical spring 435 to turn back to original position engage with the pinion part 563 of induction rotary body 55, the recurrence action of sector gear 42 also can not be hindered because responding to the rotary load of rotary body 55.
Draining valve 95 because of be applied to self external load and all the time for turning back to original position.Therefore, when clutch is in "off" state, and fixed gear 31 becomes when can rotate freely, and is applied to the load of draining valve 95 along the reverse transmission of the first transmission group, until be passed to outlet side gear 23 (planet supporting gear 232).The energy obtained by the load being applied to draining valve 95 transmitted like this is exported (consumption) by the idle running of fixed gear 31.Thus, draining valve 95 turns back to original position.
And when cam wheel 25 turns back to original position, the fan-shaped handle 60 with the engaging protrusion 61 engaged with cam path 252 rotates towards the direction near cam wheel 25.Like this when fan-shaped handle 60 rotates, the upper motor gear locking projection 62 that fan-shaped handle 60 has leaves the locked projection 211 of upper motor gear 21.Thus, upper motor gear 21 becomes the state allowing to rotate.Further, pressed by tilting cam by the upper motor gear 21 that compression helical spring 48 exerts a force above axis direction and move below axis direction.The lower holding section 525 of the upper holding section 2111 and rotor hub portion 52 that are formed as upper motor gear 21 thus engages, and the actuating force of motor 10 is also passed to the state of upper motor gear 21.
Like this, if stop motor 10, then the locking forming the fixed gear 31 of planetary gearsets is removed because of the effect of draft helical spring 435, and the first transmission group is switched to "off" state by clutch.Thus, draining valve 95 turns back to original position.
Above, embodiments of the present invention have been described in detail, but the present invention is not limited to above-mentioned execution mode, various change can be implemented in the scope not exceeding purport of the present invention.
Claims (7)
1. a draining valve drive unit, described draining valve drive unit comprises:
Motor, described motor rotates along a direction; And
First transmission group, described first transmission group is the gear train actuating force of described motor being delivered to the draining valve as driven member,
It is characterized in that,
Described motor has rotor,
Described rotor has:
Rotor hub portion, described rotor hub portion is fixed axle supporting for rotating; And
Rotor main body, cylindrically, and described rotor main body rotates integrally with described rotor hub portion by making an end of its axis be fixed on described rotor hub portion described rotor main body, and is formed with peristome in the other end,
Circumferentially permanent magnet is fixed with at the inner peripheral surface of described rotor main body,
Induction rotary body is configured with in the inner circumferential side of described permanent magnet,
Described induction rotary body has:
Inductor axle portion, described inductor axle portion is supported as rotating by described rotor hub portion; And
Induction ring portion, described induction ring portion rotates integrally with described inductor axle portion by being fixed on described inductor axle portion,
Described induction ring portion has:
Inductor, described inductor is cylindrically and be made up of non-magnetic conductor; And
Be attracted portion, described in be attracted portion and be made up of ferromagnetic,
The magnetic center that the portion of being attracted described in described induction ring portion is configured to the axis of described induction rotary body is positioned at the position leaning on described peristome side than the magnetic center of the axis of described permanent magnet.
2. draining valve drive unit according to claim 1, is characterized in that,
The described portion of being attracted is the back yoke portion of the cylindrical shape of the inner circumferential side being fixed on described inductor,
The center than the axial length of described permanent magnet of being centrally located at of the axial length in described back yoke portion is by the position of described peristome side.
3. draining valve drive unit according to claim 1, is characterized in that,
Described inductor axle portion is supported as rotating by described rotor hub portion by the part of the axis of the inner peripheral surface in described inductor axle portion and described rotor hub portion sliding contact.
4. draining valve drive unit according to claim 2, is characterized in that,
Described inductor axle portion is supported as rotating by described rotor hub portion by the part of the axis of the inner peripheral surface in described inductor axle portion and described rotor hub portion sliding contact.
5. draining valve drive unit according to claim 3, is characterized in that,
Described inductor axle portion by the axial both ends of the inner peripheral surface in described inductor axle portion diametrically with described rotor hub sliding contact, the end of the side contrary with described peristome side in the axial end portion in described inductor axle portion in the axial direction with described rotor hub portion sliding contact, thus by the supporting of described rotor hub portion for rotating.
6. draining valve drive unit according to claim 4, is characterized in that,
Described inductor axle portion by the axial both ends of the inner peripheral surface in described inductor axle portion diametrically with described rotor hub sliding contact, the end of the side contrary with described peristome side in the axial two ends in described inductor axle portion in the axial direction with described rotor hub portion sliding contact, thus by the supporting of described rotor hub portion for rotating.
7. the draining valve drive unit according to any one in claim 1 to 6, is characterized in that, described draining valve drive unit also has:
Clutch, the transmission of the actuating force of being undertaken by described first transmission group is switched to " connection " state or "off" state by described clutch; And
Second transmission group, described second transmission group is the gear train actuating force of described motor being delivered to described clutch,
Be formed with pinion part in the end of the described peristome side in described inductor axle portion, described pinion part is the gear part with the radius less than the radius of described induction ring portion,
Described second transmission group has and engages and the geared parts rotated along with the rotation of described pinion part with described pinion part,
The force application part exerted a force towards original position direction by described geared parts is connected with at described geared parts place.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014071056A JP2015195637A (en) | 2014-03-31 | 2014-03-31 | Drain valve driving device |
| JP2014-071056 | 2014-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104953757A true CN104953757A (en) | 2015-09-30 |
| CN104953757B CN104953757B (en) | 2017-06-23 |
Family
ID=53672071
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520184525.5U Withdrawn - After Issue CN204465245U (en) | 2014-03-31 | 2015-03-30 | Draining valve drive unit |
| CN201510144056.9A Active CN104953757B (en) | 2014-03-31 | 2015-03-30 | Draining valve drive |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520184525.5U Withdrawn - After Issue CN204465245U (en) | 2014-03-31 | 2015-03-30 | Draining valve drive unit |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2015195637A (en) |
| CN (2) | CN204465245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691911A (en) * | 2017-04-10 | 2018-10-23 | 日本电产三协株式会社 | Clutch and draining valve drive |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015195637A (en) * | 2014-03-31 | 2015-11-05 | 日本電産サンキョー株式会社 | Drain valve driving device |
| JP6792998B2 (en) * | 2016-10-13 | 2020-12-02 | 日本電産サンキョー株式会社 | Rotor and drain valve drive |
| JP2018062999A (en) * | 2016-10-13 | 2018-04-19 | 日本電産サンキョー株式会社 | Rotation regulation device and discharge water valve drive device |
| JP6894300B2 (en) * | 2017-06-09 | 2021-06-30 | 日本電産サンキョー株式会社 | Geared motor and drain valve drive |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4745318A (en) * | 1986-04-22 | 1988-05-17 | Ipari Muszergyar Iklad | Induction motor with secondary rotor |
| JPS63120570U (en) * | 1986-12-06 | 1988-08-04 | ||
| JPH04325861A (en) * | 1991-04-25 | 1992-11-16 | Honda Motor Co Ltd | Induction motor |
| CN1870396A (en) * | 2005-05-26 | 2006-11-29 | 日立空调·家用电器株式会社 | Self-start synchronous motor, method for manufacturing the same and compressor |
| CN201663524U (en) * | 2010-04-21 | 2010-12-01 | 东南大学 | Dual-rotor motor with torque limit |
| CN204465245U (en) * | 2014-03-31 | 2015-07-08 | 日本电产三协株式会社 | Draining valve drive unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000166171A (en) * | 1998-11-30 | 2000-06-16 | Sankyo Seiki Mfg Co Ltd | Small-sized motor |
| JP4034512B2 (en) * | 2000-12-13 | 2008-01-16 | 日本電産サンキョー株式会社 | Geared motor |
| JP4034510B2 (en) * | 2000-11-08 | 2008-01-16 | 日本電産サンキョー株式会社 | Geared motor |
| KR20130046251A (en) * | 2011-10-27 | 2013-05-07 | 삼성전기주식회사 | Spindle motor |
-
2014
- 2014-03-31 JP JP2014071056A patent/JP2015195637A/en active Pending
-
2015
- 2015-03-30 CN CN201520184525.5U patent/CN204465245U/en not_active Withdrawn - After Issue
- 2015-03-30 CN CN201510144056.9A patent/CN104953757B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4745318A (en) * | 1986-04-22 | 1988-05-17 | Ipari Muszergyar Iklad | Induction motor with secondary rotor |
| JPS63120570U (en) * | 1986-12-06 | 1988-08-04 | ||
| JPH04325861A (en) * | 1991-04-25 | 1992-11-16 | Honda Motor Co Ltd | Induction motor |
| CN1870396A (en) * | 2005-05-26 | 2006-11-29 | 日立空调·家用电器株式会社 | Self-start synchronous motor, method for manufacturing the same and compressor |
| CN201663524U (en) * | 2010-04-21 | 2010-12-01 | 东南大学 | Dual-rotor motor with torque limit |
| CN204465245U (en) * | 2014-03-31 | 2015-07-08 | 日本电产三协株式会社 | Draining valve drive unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691911A (en) * | 2017-04-10 | 2018-10-23 | 日本电产三协株式会社 | Clutch and draining valve drive |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015195637A (en) | 2015-11-05 |
| CN104953757B (en) | 2017-06-23 |
| CN204465245U (en) | 2015-07-08 |
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