DK200600262U3 - Actuator - Google Patents
Actuator Download PDFInfo
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- DK200600262U3 DK200600262U3 DK200600262U DKBA200600262U DK200600262U3 DK 200600262 U3 DK200600262 U3 DK 200600262U3 DK 200600262 U DK200600262 U DK 200600262U DK BA200600262 U DKBA200600262 U DK BA200600262U DK 200600262 U3 DK200600262 U3 DK 200600262U3
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- DK
- Denmark
- Prior art keywords
- motor
- spindle
- noise
- transmission
- housing
- Prior art date
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- 230000005540 biological transmission Effects 0.000 description 26
- 239000004033 plastic Substances 0.000 description 22
- 229920003023 plastic Polymers 0.000 description 22
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- 238000010168 coupling process Methods 0.000 description 15
- 238000005859 coupling reaction Methods 0.000 description 15
- 229920001971 elastomer Polymers 0.000 description 9
- 210000000078 claw Anatomy 0.000 description 8
- 239000007787 solid Substances 0.000 description 6
- 210000001503 joint Anatomy 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000000717 retained effect Effects 0.000 description 4
- 230000005534 acoustic noise Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
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- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
DK 2006 00262 U3DK 2006 00262 U3
Aktuator Nærværende opfindelse angår en aktuator omfattende et kabinet, en elmotor anbragt i kabinettet, hvilke motor har en motoraksel, en transmission forbundet til motorakslen, hvilke transmission har et udgangstrin, et aktiveringselement forbundet til transmissions udgangstrin, hvilket aktiveringselement er beregnet til at udvirke en bevægelse af et indstilleligt element i den konstruktion, hvori aktuatoren indbygges.The present invention relates to an actuator comprising a housing, an electric motor disposed in the housing, which motor has a motor shaft, a transmission connected to the motor shaft, which transmission has an output stage, an actuating element connected to the transmission output stage, which actuating element is intended to effect a movement. of an adjustable element of the structure in which the actuator is incorporated.
Til indstillelige møbler, som senge, stole og borde anvendes aktuatorer drevet af en reverserbar lavvolts DC-motor, typisk 24V. I en lineær aktuator trækker motoren over en transmission en spindel med en mod rotation fastholdt møtrik, så denne kan bevæge sig frem og tilbage på spindlen afhængig af spindlens rotationsretning. På møtrikken sidder en rørformet stang, hvis frie ende er forsynet med et fæste for fastgørelse i konstruktionen. Typisk består transmissionen i alt sin enkelhed i et snekkegear, hvor snekken er udformet i en forlængelse af motorakslen og snekkehjulet fastgjort direkte på spindlen. Som eksempel kan henvises til WO 02/29284 Linak A/S. En særlig udformning af lineære aktuatorer kaldes løftesøjler f.eks. beregnet som bordben. Drejeaktuatorer er indtil videre ikke så almindelige som lineære aktuatorer i møbelsammenhæng, men et enkelt eksempel opbygget omkring et særligt udformet planetgear er beskrevet i WO 01/17401 Linak Α/Ξ. I møbelbranchen er prisen for aktuatorerne en afgørende faktor, hvilket er blevet særlig markant den senere tid. Dette har naturligt medført en udvikling mod enklere konstruktioner. Specielt indenfor møbelbranchen er et væsentligt aspekt støjniveauet og med krav om billigere aktuatorer, er det DK 2006 00262 U3 endnu vanskeligere at efterkommet fordringen til støj svaghed.For adjustable furniture, such as beds, chairs and tables, actuators are powered by a reversible low-voltage DC motor, typically 24V. In a linear actuator, the motor pulls over a transmission a spindle with a counter-rotating nut so that it can move back and forth on the spindle depending on the direction of rotation of the spindle. On the nut is a tubular rod, the free end of which is provided with a bracket for attachment to the structure. Typically, the transmission in all its simplicity consists in a worm gear, the worm being formed in an extension of the motor shaft and the worm wheel attached directly to the spindle. For example, reference is made to WO 02/29284 Linak A / S. A special design of linear actuators is called lifting columns e.g. calculated as table legs. Turning actuators are so far not as common as linear actuators in the furniture context, but a single example built around a specially designed planetary gear is described in WO 01/17401 Linak Α / Ξ. In the furniture industry, the price of actuators is a decisive factor, which has become particularly significant in recent times. This has naturally led to a development towards simpler structures. Particularly in the furniture industry is a significant aspect of the noise level and with demands for cheaper actuators, it is even more difficult to meet the demand for noise weakness.
Under indstilling af møblet forekommer der mekanisk støj, såsom transmissionsstøj, støj i ophænget af det indstillelige element, støj som følge af vibrationer, der forplanter sig i konstruktionen, etc. Når de kraftigste enkeltstående generende støjkilder er afhjulpet, tegner der sig herefter et komplekst støjbillede, hvor det er yderst vanskeligt endsige umuligt at lokalisere de enkelte støjkilder.While adjusting the furniture, mechanical noise, such as transmission noise, noise in the suspension of the adjustable element, noise due to vibrations propagating in the structure, etc. occurs when the most powerful single nuisance noise sources are rectified, then a complex noise picture forms , where it is extremely difficult, let alone impossible, to locate the individual noise sources.
Ved møbler er støjniveauet en væsentlig faktor forstået således, at dette skal være så lavt som muligt. Det være sig ved senge, herunder hospitals- og plejesenge samt lænestole og borde, herunder skriveborde. I møbelkonstruktionen og i drivenheden kan der træffes diverse gængse støjdæmpende foranstaltninger, såsom brugen af gummi/plastophæng, plastbøsninger, smøremidler etc. til at modvirke støjen, men på trods heraf er det stadig ønskeligt, at nedbringe støjniveauet yderligere.In furniture, the noise level is an important factor understood so that this must be as low as possible. Be it beds, including hospital and care beds, as well as armchairs and tables, including desks. In the furniture design and in the drive unit, various common noise suppression measures can be taken, such as the use of rubber / plastic hangers, plastic bushings, lubricants etc. to counteract the noise, but nevertheless it is still desirable to reduce the noise level further.
Noget af støjen udspringer fra motoren, hvor en del hidrører fra rotorens opbygning med akseparallelle luftgab mellem jernflangerne som spolerne er viklet op på. Dette giver små, men mærkbare diskontinuiteter i magnetfeltet, som medfører vibrationer, der forplanter sig i konstruktionen og medfører akustisk støj. For at imødegå diskontinuiteten er det foreslået at tvinde ankeret, så luftgabet ikke bliver akseparallelt. Fænomenet er i anden sammenhæng beskrevet i US 4,616,151 General Motors Corporation.Some of the noise emanates from the engine, where a part derives from the rotor's structure with axial parallel air gaps between the iron flanges on which the coils are wound. This produces small but noticeable discontinuities in the magnetic field, which cause vibrations propagating in the structure and causing acoustic noise. To counter the discontinuity, it is proposed to twist the anchor so that the air gap does not become parallel. The phenomenon is described in another context in US 4,616,151 General Motors Corporation.
En anden del af støjen fra motoren hidrører fra en aksial bevægelse af rotoren, som ligeledes udmønter sig i DK 2006 00262 U3 vibrationer og dermed akustisk støj. Grundet fremstillingstolerancer er det vanskeligt at gøre noget ved problemet. Fænomenet er ligeledes i anden sammenhæng bl.a. beskrevet i US 5,497,039 General Electric Company 5 og US 6,069,422 Fasco Industries, Inc., der begge foreslår løsninger til at fiksere rotoren i aksialretningen via statorens magnetfelter.Another part of the noise from the engine is due to an axial movement of the rotor, which also results in vibrations and thus acoustic noise in DK 2006 00262 U3. Due to manufacturing tolerances, it is difficult to address the problem. The phenomenon is also in other contexts, among other things. disclosed in US 5,497,039 General Electric Company 5 and US 6,069,422 Fasco Industries, Inc., both proposing solutions for fixing the rotor in the axial direction via the stator magnetic fields.
Et andet aspekt i den akustiske støj er 10 transmissionsstøjen, hvor en del hidrører fra indgrebet mellem tandhjulene eller nærmere bestemt varierende grad af indgrebet. I den forbindelse kan der henvises til WO 01/94732 Al VKR Holding A/S, der omhandler støjproblematik i forhold til vinduesåbnere, og hvor der 15 fokuseres på støj som følge af spillerum mellem transmissions bestanddele, og hvor støjen søges reduceret ved et kontrolleret indgreb mellem en snekke og et snekkehjul.Another aspect of the acoustic noise is the transmission noise, a portion of which results from the engagement of the gears or more specifically the degree of engagement. In this connection, reference can be made to WO 01/94732 Al VKR Holding A / S, which deals with noise problems in relation to window openers, and where 15 is focused on noise due to clearance between transmission components and where noise is sought by a controlled intervention. between a worm and a worm.
.20 De skitserede løsninger er dels dyre og komplicerede eller lader sig ikke umiddelbart praktisere i foreliggende sammenhæng..20 The outlined solutions are partly expensive and complicated or cannot be practiced immediately in the present context.
Opfindelsen udspringer af et omsiggribende ønske om at 25 reducere støjniveauet for lineære aktuatorer under samtidig iagttagelse af, at det ikke må medføre øgede eller nævneværdige øgede omkostninger på disse.The invention originates from a pervasive desire to reduce the noise level of linear actuators while also observing that it must not result in increased or appreciable increased costs thereon.
Dette opnås ifølge opfindelsen ved, at elmotoren er 30 lejret i en for denne formsluttende udsparing i en klods af skumplast eller lignende materiale anbragt og fastholdt i kabinettet. Skumplasten virker såvel vibrations- som støjdæmpende, og skumplasten kan yderligere gives specifikke egenskaber rettet mod en 35 bestemt type motor og tranmission for maksimal DK 2006 00262 U3 vibrations/støjdæmpning. I de tilfælde hvor en del eller hele transmissionen er sammenbygget med motoren som en enhed, udformes skumplastklodsen hensigtsmæssigt så hele enheden optages i dennes udsparing. Motoren kan fastholdes i kabinettet med traditionelle midler, men hvis konstruktionen i øvrigt tillader det, er det hensigtsmæssigt at udforme denne, så motoren udelukkende fastholdes i skumplastklodsen, hvorved man dels sparer de traditionelle fastgørelsesmidler og dels får en nem montering af motoren, da den blot skal anbringes i skumplastklodsen. Når motoren således udelukkende er fastholdet og indesluttet i skumklodsen sammen med transmissionen opfanges motor- og transmissionsvibrationer ideelt i skumplasten og overføres ikke til kabinettet. Den varme som kommer fra motor, transmission og evt. bremse overføres til kabinettet. Skumklodsen resulterer således ikke i en overophedning af motordelen, men hvis temperaturen ønskes holdt nede, kan man på strategiske steder gør skumplasten mellem motor og kabinet tynd for at lette varmeoverførslen, men der er også den mulighed at indlægges varmeledende metalfolier/plader i skumklodsen ud til kabinettet.This is achieved according to the invention by the fact that the electric motor is stored in a block of foam plastic or similar material arranged in this housing for this form-fitting recess and held in the housing. The foam plastic acts both vibration and noise suppression, and the foam plastic can further be given specific properties aimed at a certain type of engine and transmission for maximum DK 2006 00262 U3 vibration / noise damping. In cases where part or all of the transmission is combined with the engine as a unit, the foam plastic block is suitably designed so that the entire unit is accommodated in its recess. The motor can be retained in the cabinet by traditional means, but if the construction otherwise permits, it is desirable to design it so that the motor is kept only in the foam plastic block, thus saving the traditional fasteners and partly obtaining an easy mounting of the motor. should be placed in the foam plastic block. Thus, when the motor is solely restrained and enclosed in the foam block together with the transmission, motor and transmission vibrations are ideally captured in the foam plastic and are not transmitted to the enclosure. The heat that comes from the engine, transmission and possibly brake is transferred to the cabinet. Thus, the foam block does not result in overheating of the engine part, but if the temperature is desired to be kept low, the foam between the motor and the cabinet can be made thin in order to facilitate the heat transfer, but there is also the possibility of inserting heat-conducting metal foils / sheets into the foam block. cabinet.
Hensigtsmæssigt udfylder skumplastklodsen helt eller i det væsentlige helt kabinettets indre, hvilket giver en let montering og samtidig undgås resonanshulrum og bidrager derved yderligere til vibrations/lyddæmpningen. Skumplastklodsen kan udgøres af flere dele, f.eks. to dele med en samleflade i motorens længdeplan, fortrinsvis så motoren kan lægges ned i udsparingen på den ene del og derefter placere den anden del ovenpå. Af montage- og fremstillingshensyn er det hensigtsmæssig med en skumplastklods som et helt emne med en udsparing for motoren, hvor udsparingen har en åbning ført ud til den ene ende eller side, for indføring af motoren i klodsen.Conveniently, the foam plastic block fills the interior of the cabinet completely or substantially completely, providing easy mounting and at the same time avoiding resonant cavities, thereby further contributing to the vibration / sound attenuation. The foam plastic block may comprise several parts, e.g. two parts with an interface in the longitudinal plane of the motor, preferably so that the motor can be placed in the recess on one part and then place the other part on top. For mounting and manufacturing purposes, it is advisable to use a foam plastic block as a complete workpiece with a recess for the motor, the recess having an opening extending to one end or side, for introducing the motor into the block.
DK 2006 00262 U3 I en udførelsesform for opfindelsen er der i transmissionen eller mellem transmissionen og aktuatorens aktiveringselement en klokobling, hvilket gør montagen særlig enkel. Motorenheden, dvs. motor med transmissionsdel kan da blot anbringes med sin part af klokoblingen løst ind i den anden part af klokoblingen. I en særlig hensigtsmæssig udformning er der mellem de enkelte kløer i klokoblingen et mellemlæg af gummi eller lignende materiale. Herved opnås, at vibrationer/støj fra motorenheden forplanter sig videre ud i konstruktionen, hvilket yderligere sikre at konstruktionen bliver lydsvag. Det gummi eller gummilignende materiale som mellemlægget fremstilles af kan ligeledes gives egenskaber specifikt rettet mod, at absorbere de vibrationer der optræder i den aktuelle konstruktion.In an embodiment of the invention, there is a clock coupling in the transmission or between the transmission and the actuator actuator element, which makes the assembly particularly simple. The motor unit, ie. motor with transmission part can then simply be placed with its part of the clock clutch loosely into the other part of the clock clutch. In a particularly convenient embodiment, there is an intermediate rubber or similar material between the individual claws in the clock clutch. This ensures that vibration / noise from the motor unit propagates further into the structure, which further ensures that the structure becomes silent. The rubber or rubber-like material from which the shim is made can also be given properties specifically aimed at absorbing the vibrations occurring in the present construction.
Et udførelseseksempel for opfindelsen skal i det følgende forklares nærmere under henvisning til medfølgende tegning. På tegningen viser:An embodiment of the invention will now be described in more detail with reference to the accompanying drawings. In the drawing:
Fig. 1, en lineær aktuator i form af en løftesøjle, fig. 2, en drivenhed til løftesøjlen i fig. 1, fig. 3, en drivenhed til løftesøjlen i fig. 1, beregnet til synkron udskydning af ledene, fig. 4, et kabinet, fig. 5a, spindeldelen af drivenheden i fig. 2, fig. 5b, længdesnit i spindeldelen i fig. 5a, fig. 5c, spindeldelen i fig. 5a set direkte fra oven, DK 2006 00262 U3 fig. fig. fig. fig. fig.FIG. 1, a linear actuator in the form of a lifting column; FIG. 2, a drive unit for the lifting column of FIG. 1, FIG. 3, a drive unit for the lifting column of FIG. 1, for synchronous extension of the joints; FIG. 4, a housing; FIG. 5a, the spindle portion of the drive unit of FIG. 2, FIG. 5b, longitudinal section of the spindle portion of FIG. 5a, fig. 5c, the spindle portion of FIG. 5a seen directly from above, DK 2006 00262 U3 fig. FIG. FIG. FIG. FIG.
5d. detalje af overenden af spindeldelen, 6a, spindeldelen af drivenheden i fig. 3, 6b, længdesnit i spindeldelen i fig. 6a, 6c, spindeldelen i fig. 6a set direkte fra oven, 6d. detalje af overenden af spindeldelen, På tegningens fig. 1 er der vist en lineær aktuator i form af en løftesøjle til højdeindstillelige (sidde/stå) borde med tre indeni hinanden teleskopisk arrangerede led 1,2,3, hvor det yderste led 1 med sin nederste ende er beregnet til fastgørelse i en fod. På øvre ende af det inderste led 3 er der et kabinet 4, som sidder vinkelret ud fra søjlens bredside. På kabinettets sider og enden, der vender bort er der skurehuller 5 for montering af bordpladen/rammen som bærer bordpladen. På bredsiden, foroven af det yderste led 1 er der et beslag 1' for montering af en sarg. Søjlen kan udformes med et ikke-ført eller et ført mellemste led 2. Ved et ikke-ført mellemste led 2 skydes det inderste led 1 ud først, hvorefter det mellemste led 2 via anslag føres med. Grundet friktion mellem de enkelte led kan bevægelsen af det mellemste led 2 dog være mere eller mindre tilfældig. På tegningens fig. 2 er der vist en drivenhed for ikke-ført bevægelse af det mellemste led, og i fig. 3 er der vist en drivenhed for synkron bevægelse af det inderste og mellemste led 1,2.5d. detail of the top end of the spindle portion, 6a, the spindle portion of the drive unit of FIG. 3, 6b, longitudinal section in the spindle part of fig. 6a, 6c, the spindle portion of FIG. 6a seen directly from above, 6d. detail of the top end of the spindle part. 1, a linear actuator is shown in the form of a lifting column for height-adjustable (sitting / standing) tables with three telescopically arranged links 1,2,3 interchangeably, the outermost link 1 having its lower end intended for one foot fastening. At the upper end of the inner link 3 there is a housing 4 which is perpendicular to the width side of the column. On the sides of the cabinet and the end facing away, there are scour holes 5 for mounting the worktop / frame supporting the worktop. On the wide side, at the top of the outer link 1, there is a bracket 1 'for mounting a frame. The column can be formed with a non-guided or guided middle link 2. In the case of a non-guided middle link 2, the inner link 1 is pushed out first, after which the middle link 2 is guided via impact. However, due to friction between the individual joints, the movement of the middle joint 2 may be more or less random. In the drawing FIG. 2 shows a drive unit for non-guided movement of the middle link, and in fig. 3 shows a drive unit for synchronous movement of the inner and middle links 1,2.
På tegningens fig. 4 er vist et eksploderet billede af kabinetet 4, der her er af dybtrukket stål. Motorenheden 10 omfatter en DC-motor 6 med to plane, parallelle sider.In the drawing FIG. 4 is an exploded view of the housing 4 which is here of deep drawn steel. The motor unit 10 comprises a DC motor 6 with two flat, parallel sides.
DK 2006 00262 U3 På forenden af motoren er der frontbeslag 7 af metal med et snekkehjul 8, i indgreb med en snekke, der udgøres af en forlængelse af motorakslen. På den opadvendende side af frontbeslaget er der monteret en skruefjeder 14, der 5 virker som bremse, jf. dansk patentansøgning PA 2003 01650 Linak A/S. På den nedadvendende side af snekkehjulet 8 er der monteret den ene del af en klokobling 9a.DK 2006 00262 U3 On the front of the engine there are metal front brackets 7 with a worm wheel 8, in engagement with a worm which is an extension of the motor shaft. On the upward side of the front bracket is mounted a screw spring 14, which acts as a brake, cf. Danish patent application PA 2003 01650 Linak A / S. On the downward side of the worm wheel 8 is mounted one part of a clock clutch 9a.
10 I kabinettet 4 er der indlagt en klods af skumplast 11, f.eks. polyuretan med en udsparing 12 for motordelen 1. Udsparingen er udformet formsluttende, for så vidt angår selve motoren 6 og tilstødende del af transmissionen. Snekkehjulet 8 sidder her foran klodsen. Skumplastklodsen 15 passer stramt ned i kabinettet, dvs. udfylder kabinettets hulhed, hvor klodsen er placeret. For inden skumplastklodsen ilægges føres motordelen med selve motoren ind i udsparingen, der munder ud i forenden af klodsen. Sluttelig monteres et plastdæksel 13 med 20 snaplåsben, som griber ind i dertil beregnede udsparinger i sider og ender af kabinettet. Motordelen ligger således løs udelukkende indesluttet i skumklodsen. De vibrationer der kommer fra motor og transmission opfanges i skumplasten og overføres ikke til kabinettet. Skumplasten 25 virker såvel vibrations- som støjdæmpende. Den varme som kommer fra motor og bremse overføres til kabinettet, idet der er åbent mellem de planparallelle sider af motoren og kabinet. Skumklodsen resulterer, som man måske kunne have forventet, ikke i en overophedning af motordelen.In the housing 4, a block of foam plastic 11 is inserted, e.g. polyurethane with a recess 12 for the motor part 1. The recess is formed in a form-fitting manner with respect to the motor 6 itself and adjacent part of the transmission. The worm wheel 8 sits here in front of the block. The foam plastic block 15 fits snugly into the cabinet, ie. fills the cavity of the cabinet where the bracket is located. Because before the foam block is loaded, the motor part with the motor itself is inserted into the recess which opens into the front of the block. Finally, a plastic cover 13 with 20 snap-lock legs is mounted, which engages in recesses for the sides and ends of the cabinet. Thus, the engine part is loose exclusively enclosed in the foam block. The vibrations coming from the engine and transmission are trapped in the foam and are not transmitted to the cabinet. The foam plastic 25 acts both vibration and noise suppressant. The heat that comes from the motor and the brake is transferred to the housing, leaving open between the plane parallel sides of the motor and the housing. The foam block, as one might have expected, does not result in an overheating of the engine part.
30 I fig. 5a-5d er der vist spindeldelen af drivenheden i fig. 2. Spindeldelen omfatter et ydre rør 14 hvis nedre ende fastholdes i bunden af det yderste led 1. I toppen af røret 14 er der fastgjort en muffe med indvendig 35 gevind for en hulspindel 15, hvor der foroven ligeledes DK 2006 00262 U3 er fastgjort en muffe med indvendig gevind for en massiv spindel 16. På enden af den massive spindel 16 er der fastgjort et kugleleje 17 omgivet af en lejeskål 18. Helt på yderenden af den massive spindel 16 er fastgjort den anden del 9b af klokoblingen beregnet for indgreb med delen 9a på motorenheden. I den anden del 9b af klokoblingen er der indlagt et stjerneformet element 19 af gummi således, at det med de radiært udragende arme ligger mellem kløerne på de to koblingsdele. Dvs. at kraftoverføringen mellem de to koblingsdele 9a,9b sker via gummimellemlægget 19, hvorved forhindres helt eller delvist, at vibrationer/støj føres fra den ene del til den anden, ligesom gummielement absorberer unøjagtigheder i sammenkoblingen.In FIG. 5a-5d, the spindle portion of the drive unit of FIG. 2. The spindle member comprises an outer tube 14, the lower end of which is retained at the bottom of the outer joint 1. At the top of the tube 14 is a sleeve with an internal 35 thread for a hollow spindle 15, which also has a top Internal threaded sleeve for a massive spindle 16. At the end of the massive spindle 16 is mounted a ball bearing 17 surrounded by a bearing bowl 18. At the outer end of the solid spindle 16 is secured the second part 9b of the clutch intended for engagement with the part. 9a on the motor unit. In the second part 9b of the bell coupling, a star-shaped element 19 of rubber is inserted so that with the radially projecting arms it lies between the claws of the two coupling parts. Ie the transmission of power between the two coupling parts 9a, 9b takes place via the rubber intermediate 19, thereby preventing, in whole or in part, vibration / noise from one part to the other, just as the rubber element absorbs inaccuracies in the coupling.
Fastgørelsen til kabinettet 4 foretages med et pladeelement 20, der med to skruer gennem skruehuller 21a,21b skrues fast indvendig på bunden af kabinettet. I bunden af huset er der et hul, som lejeskålen sidder ned gennem således, at denne med en firkantet flange indspændes mellem indersiden af bunden og pladeelementet 20, der virker som tryksikring for lasten hidrørende fra bordpladen, mens lejehuset virker som træksikring.The fastening to the housing 4 is made with a plate element 20, which is screwed into the bottom of the housing with two screws through screw holes 21a, 21b. At the bottom of the housing there is a hole through which the bearing bowl sits down so that it is clamped with a square flange between the inside of the base and the plate element 20 which acts as a pressure protection for the load originating from the countertop, while the bearing housing acts as a tension protection.
I fig. 6a-6d er der vist spindeldelen af drivenheden i fig. 3 for synkron føring af det inderste og mellemste led 2,3. Spindeldelen omfatter et drivrør 22, en hulspindel 23 og en massivspindel 24, fastgjort med nedre ende i bunden af det yderste led 1. Ved nedre ende af drivrøret 22 er der et endestykke 25 med en passage med indvendig gevind for hulspindlen 23. Endestykket 25 passer op i nedre ende af inderprofilet 3. Mellem inderste og mellemste led 3,2 er der en ramme med glidere af plast fastholdt med tappe ind i huller på sidevæggen af det inderste led 3. Tappen er gjort så lange, at de DK 2006 00262 U3 sidder ind i huller 25a i endestykket 25 til fastholdelse af dette. I overende af hulspindlen 23 er der fastgjort en bøsning 2 6 med udragende finner i indgreb med spor (mangenotforbindelse) på indersiden af drivrøret 22. Ved rotation af drivrøret 22 vil hulspindlen 23 skrue sig ud gennem endestykket 25.In FIG. 6a-6d, the spindle portion of the drive unit of FIG. 3 for synchronous guiding of the inner and middle joints 2,3. The spindle member comprises a drive tube 22, a hollow spindle 23 and a solid spindle 24, secured with a lower end at the bottom of the outer link 1. At the lower end of the drive tube 22 there is an end piece 25 with an internal thread passage for the hollow spindle 23. The end piece 25 fits up at the lower end of the inner profile 3. Between the inner and middle joints 3.2 there is a frame with plastic sliders held in place with holes in the holes on the side wall of the inner joint 3. The pins are made so long that they are DK 2006 00262 U3 fits into holes 25a of the end piece 25 to retain it. At the end of the hollow spindle 23, a sleeve 26 with protruding fins engages with grooves (many-nut connection) on the inside of the drive tube 22. When rotating the drive tube 22, the hollow spindle 23 will unscrew through the end piece 25.
Til nedre ende af hulspindlen 23 er der fastgjort et endestykke 27 med et leje 28 for hulspindlen. I enden af hulspindlen er der en muffe 29 med gevind i indgreb med den massive spindel 24. Når hulspindlen roterer, vil den skrue sig op ad den massive spindel samtidig med, at den skruer sig ud af drivrøret, til hvilke formål hulspindel/massivspindel henholdsvis er forsynet med højre/venstregevind. Endestykket 27 er fastgjort på tilsvarende vis som ovenfor beskrevet med tappe fra glidere, nu mellem det mellemste led og det yderste led 2,1. Da det mellemste led 2 via endestykket er fastgjort til nedre ende af hulspindlen 23 tvangsføres det samme med dette, på tilsvarende måde som eksempelvis vist og beskrevet i DE 39 10 814 SMS Hasenclever GmbH, jf. specielt fig.7B. samt FR 2 625 488 ZW Hydraulik AG.At the lower end of the hollow spindle 23, an end piece 27 is provided with a bearing 28 for the hollow spindle. At the end of the hollow spindle there is a threaded sleeve 29 engaging the solid spindle 24. As the hollow spindle rotates, it will screw up the solid spindle while unscrewing from the drive tube, for which purpose the hollow spindle / solid spindle, respectively. is fitted with right / left thread. The end piece 27 is fixed in the same manner as described above with pins from sliders, now between the middle link and the outer link 2.1. As the middle link 2 is secured via the end piece to the lower end of the hollow spindle 23, the same is forced with this, in the same manner as, for example, shown and described in DE 39 10 814 SMS Hasenclever GmbH, cf. especially Fig. 7B. and FR 2 625 488 ZW Hydraulik AG.
Til overende af drivrøret 22 er fastgjort den anden del 9b af klokoblingen beregnet til indgreb med delen 9a fra motorenheden 10. Klokoblingsdelen 9b fastgøres til drivrøret via en endeprop 30 heri, idet endeproppen har en mangenot til samvirkning med mangenoten indvendig i drivrøret. På en udragende del har endeproppen en rende med en fortanding og koblingsdelen 9b har en overensstemmende ringvæg 31 med fortanding, der passer herned for rotationsoverførende sammenkobling. Koblingsdelen er yderligere fastholdt med en centerskrue ned i endeproppen af drivrøret.To the end of the drive tube 22 is secured the second part 9b of the clutch coupling for engagement with the part 9a of the motor unit 10. The clock clutch part 9b is attached to the drive tube via an end plug 30 herein, the end plug having a manifold for interaction with the manifold inside the driver tube. On a protruding part, the end plug has a gutter with a tooth and the coupling part 9b has a corresponding ring wall 31 with a tooth suitable for rotational transfer coupling. The coupling part is further secured with a center screw into the end plug of the drive tube.
DK 2006 00262 U3 På samme måde som før er der i den anden del 9b af klokoblingen indlagt et stjerneformet element 19 af gummi således, at det med de radiært udragende arme (her seks stykker) ligger mellem kløerne på de to koblingsdele, der 5 hver har tre kløer. På fig. 6c er de tre klør fra spindeldelen vist, mens de videre mellemrum er beregnet for modtagelse af de tre kløer fra motordelens klokoblingsdel 9a.DK 2006 00262 U3 In the same way as before, in the second part 9b of the clock coupling a star-shaped element 19 of rubber is inserted so that with the radially projecting arms (here six pieces) lie between the claws of the two coupling parts, each of which has three claws. In FIG. 6c, the three claws from the spindle part are shown, while the further spaces are intended to receive the three claws from the clock part 9a of the motor part.
10 Fastgørelsen af spindeldelen til kabinetet 4 foretages ligeledes her med et pladeelement 20, der med to skruer gennem skruehuller 21a,21b skrues fast indvendig på bunden af kabinetet. Det forstås, at drivrøret er fastholdt i aksialretningen mellem endestykket 25 15 fastholdt i det inderste led 3 og kraven på pladestykket 20 fastgjort på kabinetet, der i øvrigt svejses til det inderste led 3.The fastening of the spindle part to the housing 4 is also done here with a plate element 20, which is screwed into the bottom of the housing with two screws through screw holes 21a, 21b. It is understood that the drive tube is retained in the axial direction between the end piece 25 15 retained in the inner joint 3 and the collar of the plate piece 20 secured to the housing, which is otherwise welded to the inner joint 3.
Selvom opfindelsen her er illustreret i forbindelse med 2-0 en aktuator udformet som en løftesøjle til højdeindstillelige borde forstås det, at opfindelsen ikke er begrænset hertil. Indlejring af motoren i en skumplastklods i kabinettet og anvendelse af en klokobling med gummimellemlæg kan naturligvis med fordel 2 5 anvendes i andre aktuatorer og for bare at nævne et eksempel, lineære aktuatorer til indstilling af hospitals- og plejesenge eller senge til hjemmebrug.Although the invention is illustrated here in connection with 2-0 an actuator designed as a lifting column for height adjustable tables, it is understood that the invention is not limited thereto. Of course, embedding the engine in a foam plastic block and using a rubber spacer coupler can advantageously be used in other actuators and, to name just one example, linear actuators for adjusting hospital and nursing beds or beds for home use.
DK 2006 00262 U3DK 2006 00262 U3
Brugsmodelkrav 1. Aktuator omfattende et kabinet, en elmotor anbragt i kabinettet, hvilke motor har en motoraksel en transmission forbundet til motorakslen, hvilke transmission har et udgangstrin, et aktiveringselement forbundet til transmissions udgangstrin, hvilket aktiveringselement er beregnet til at udvirke en bevægelse af et indstilleligt element i den konstruktion, hvori aktuatoren indbygges, kendetegnet ved, at i det mindste elmotoren (6) er lejret i en for denne formsluttende udsparing (12) i en klods (11) af skumplast eller lignende materiale anbragt og fastholdt i kabinettet (4) .Use model requirements 1. An actuator comprising a housing, an electric motor arranged in the housing, which motor has a motor shaft a transmission connected to the motor shaft, which transmission has an output stage, an actuating element connected to the transmission output stage, which actuating element is intended to effect a movement of an adjustable element of the structure in which the actuator is incorporated, characterized in that at least the electric motor (6) is housed in a foam (11) of foam or similar material (12) arranged in this block (11) in the housing (4) .
2. Aktuator ifølge krav 1, kendetegnet ved, at i det mindste en del af tranmission (8) er sammenbygget med motoren og at denne del af transmissionen ligeledes rummes i udsparingen i skumplastklodsen.Actuator according to claim 1, characterized in that at least part of the transmission (8) is integral with the motor and that part of the transmission is also accommodated in the recess in the foam plastic block.
3. Aktuator ifølge krav 1 eller 2, kendetegnet ved, at skumplastklodsen helt eller i det væsentlige helt udfylder kabinetetts indre.An actuator according to claim 1 or 2, characterized in that the foam plastic block completely or substantially completely fills the interior of the cabinet.
4. Aktuator ifølge krav 1, 2 eller 3, kendetegnet ved, at skumplastklodsen udgøres af to dele med en samleflade i motorens længdeplan.An actuator according to claim 1, 2 or 3, characterized in that the foam plastic block consists of two parts with a connecting surface in the longitudinal plane of the motor.
5. Aktuator ifølge krav 1,2 eller 3, kendetegnet ved, at skumplastklodsen er ét hele og hvor udsparingen har en åbning ført ud i klodsens yderside for indføring af i det mindste af motoren.The actuator according to claim 1,2 or 3, characterized in that the foam plastic block is one whole and wherein the recess has an opening extending into the outside of the block for insertion of at least the motor.
DK 2006 00262 U3 6. Aktuator ifølge krav 1 eller 2, kendetegnet ved, at der i transmissionen eller at der mellem transmissionen og aktuatorens aktiveringselement (2,3;15,16;23) er en klokobling (9a,9b).The actuator according to claim 1 or 2, characterized in that a clockwise coupling (9a, 9b) exists in the transmission or between the transmission and the actuating element (2,3; 15,16; 23).
7. Aktuator ifølge krav 6, kendetegnet ved, at der mellem de enkelte kløer i klokoblingen er et mellemlæg (19) af gummi eller lignende materiale.An actuator according to claim 6, characterized in that there is between the individual claws in the clock clutch an intermediate (19) of rubber or similar material.
8. Aktuator ifølge krav 6 eller 7, kendetegnet ved, at klokoblingens to dele (9a,9b) har hver tre aksialt forløbende kløer, og at mellemlægget 19 har 6 udragende flige fra en central ringvæg eller massiv kerne.The actuator according to claim 6 or 7, characterized in that the two parts of the clock coupling (9a, 9b) each have three axially extending claws and that the spacer 19 has 6 projecting tabs from a central annular wall or solid core.
9. Aktuator ifølge krav 1 samt 6,7 eller 8, kendete g n e t ved, at den omfatter en spindeldel og hvor den ene del af klokoblingen er fastgjort til enden af spindlen.9. An actuator according to claim 1, as well as 6.7 or 8, characterized in that it comprises a spindle part and wherein one part of the clock coupling is attached to the end of the spindle.
10. Aktuator ifølge krav 1 samt 6,7 eller 8, k e n d e t egnet ved, at den omfatter en spindeldel med et drivrør for rotation af en spindel og hvor klokoblingen er fastgjort til den ene ende af drivrøret.10. An actuator according to claim 1, as well as 6.7 or 8, characterized in that it comprises a spindle member with a drive tube for rotation of a spindle and wherein the clockwise coupling is fixed to one end of the drive tube.
11. Aktuator ifølge krav 9 eller 10, kendetegne t ved, at spindeldelen er fastgjort til kabinettet ved hjælp af et pladestykke fastskruet til bunden af kabinettet.The actuator according to claim 9 or 10, characterized in that the spindle part is fixed to the housing by means of a plate piece screwed to the bottom of the housing.
DK 2006 00262 U3DK 2006 00262 U3
°Ksoo6° Ksoo6
DK 2006 00262 U3DK 2006 00262 U3
F i g . 5a tnnF i g. 5a tnn
1515
I 4 DK 2006 00262 U3I 4 DK 2006 00262 U3
Γ i g. 6aΓ in g. 6a
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK200600262U DK200600262U3 (en) | 2003-05-06 | 2006-10-09 | Actuator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DKPA200300681 | 2003-05-06 | ||
| DK200600262U DK200600262U3 (en) | 2003-05-06 | 2006-10-09 | Actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK200600262U3 true DK200600262U3 (en) | 2006-11-24 |
Family
ID=37450539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK200600262U DK200600262U3 (en) | 2003-05-06 | 2006-10-09 | Actuator |
Country Status (1)
| Country | Link |
|---|---|
| DK (1) | DK200600262U3 (en) |
-
2006
- 2006-10-09 DK DK200600262U patent/DK200600262U3/en not_active IP Right Cessation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| UUP | Utility model expired |
Expiry date: 20140506 |