EP0999567B1 - Schaltergetriebe mit wenigstens einer Schaltstufe - Google Patents
Schaltergetriebe mit wenigstens einer Schaltstufe Download PDFInfo
- Publication number
- EP0999567B1 EP0999567B1 EP98120923A EP98120923A EP0999567B1 EP 0999567 B1 EP0999567 B1 EP 0999567B1 EP 98120923 A EP98120923 A EP 98120923A EP 98120923 A EP98120923 A EP 98120923A EP 0999567 B1 EP0999567 B1 EP 0999567B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gear
- internal
- internal toothing
- toothing
- cam disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 title claims description 17
- 230000009467 reduction Effects 0.000 description 16
- 210000001520 comb Anatomy 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/14—Operating parts, e.g. turn knob
- H01H19/18—Operating parts, e.g. turn knob adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
Definitions
- the invention relates to a switch gear with at least a switching stage driven by a driven sun gear, by a planet carrier carrying at least one planetary gear and by a with the at least one planet inside meshing, arranged coaxially with the sun gear ring gear is formed, which is held fixed to the housing, and wherein the Switching stage a cam for actuating switching elements having.
- Such a switch gear is in the form of a limit switch from EP 0 355 731 B1.
- the limit switch is made of two Gear parts assembled, wherein the first gear part by two gear stages serving as reduction stages is formed.
- the second transmission part is through in total formed four switching stages.
- the gear parts are as planetary gear designed. It is in each switching stage respectively a cam plate provided for actuating a corresponding Switching element is used.
- Each cam is on a planet carrier, in addition planetary gears carries, each with a serving as a sun gear clutch gear and with an internal toothing on the housing combed fixed ring gear.
- the object of the invention is a switch gear of the above to create said type, the same size further improved reduction ratios allows.
- the cam disc with an internal toothing is provided, which is about the same Partial diameter has as the internal toothing of the Ring gear, wherein the internal teeth of the cam disc a to the internal teeth of the ring gear different numbers of teeth and wherein the cam disc by means of the internal toothing with the at least one planetary gear of the switching stage combs.
- the solution according to the invention is particularly suitable for limit switches identical in the reduction stages designed to limit switches according to EP 0 355 731 B1 are.
- the planetary gear can the various switching stages of the limit switch according to EP 0 355 731 B1 by a differential gear each, such as it is provided according to the invention, to be replaced substantially to achieve higher reductions.
- the number of teeth of the internal toothing the cam larger than the number of teeth of the internal teeth of the ring gear.
- a further embodiment of the invention is at a Number of teeth of the internal teeth of the ring gear of 46 and a number of teeth of the sun gear of 14, the number of teeth of the internal teeth the cam plate 49.
- This is the suitable Solution according to the invention as a limit switch with the same dimensions, like the embodiment described in detail of the prior art. In accordance with the embodiment described number of teeth results in a reduction ratio of 69.98 per gear stage.
- a further embodiment of the invention is for adjustment the cam plate with an external toothing of the ring gear meshing worm gear provided whose transmission ratio to the tooth number difference of the cam disk for Ring gear is adapted.
- a switch gear in the form of a limit switch 1 for mechanical Actuation of switching elements, not shown has, according to FIG. 1, a housing 2 in which two gear parts 3, 4 are housed.
- the first transmission part 3 is by a reduction stage and the second transmission part. 4 formed by two switching stages.
- the first transmission part 3 is according to a first transmission part according to an embodiment designed according to Fig. 10 of EP 0 355 731 B1, so that for further explanation in addition to EP 0 355 731 B1 is referenced.
- the first transmission part 3 is driven by a drive shaft 5 driven, the not shown in detail Way is connected to a drive unit.
- the drive unit is part of a functional unit such as in particular of a crane performing precisely controlled movements should.
- the transmission part 3 provides a Voruntersburg in the form of a Stirnradvorcut, the reduce large jumps in the reductions of the planetary stages should. This precompilation does not necessarily exist be. An introduction of force can from the drive shaft. 5 also be done directly on the sun 9.
- the first transmission part 3 has a stepped outer toothing provided drive wheel 6, the rotationally fixed on the Drive shaft 5 is arranged.
- the drive wheel 6 meshes by means its external teeth with the external teeth of an eccentric on an axis parallel to the drive shaft 5 axis 8 stored gear 7, which also has a two-part, stepped outer toothing is provided.
- the axis 8 to Storage of the gear 7 is fixed to the housing 2.
- the external toothing the gear 7 meshes with a smaller diameter with the external teeth of a sun gear 9, the coaxial the drive shaft 5 is rotatably mounted.
- the sun wheel 9 is rotationally locked with two coaxial connecting clutch gears 10 connected to each other as well are rotationally connected to each other and rotatable are mounted on the drive shaft 5.
- the sun gear 9 points a second, axially offset external teeth with opposite the meshing with the gear 7 outer teeth lesser Diameter up.
- the two clutch gears 10 are with provided according to identical external teeth. With the formed by the sun gear 9 and the clutch gears 10, combing external teeth serving as a common sun gear for each switching stage 4 three each over the circumference of Sun gear 9 and the clutch gears 10 arranged distributed Planetary gears 12, each per switching stage on one common planet carrier 11 are held.
- the planet carrier 11 each shift stage 4 is slidably supported on a to the drive shaft 5 coaxial ring gear 13 from that with a Internal toothing 14 with the respective planet wheels 12th combs.
- the two ring gears 13 are each by means of one Unspecified external teeth held fixed to the housing.
- the two ring gears 13 are each in the circumferential direction adjustably held on the housing 2.
- each Adjusting screw 18 is provided.
- the adjustment of the ring gears 13 corresponds in structure and function of the adjustment of Ring gears of the switching stages of the limit switch according to EP 0 355 731 B1, so that for supplementary explanation of structure and Function of the adjusting screws 18 to EP 0 355 731 B1 is referenced.
- Only difference than the worm gear serving adjusting screw 18 for adjusting the ring gears 13 is that the corresponding gear ratio each adjustment screw 18 to the opposite of the state of Technique according to EP 0 355 731 B1 changed reduction of the respective cam plate 15 is adapted.
- Each switching stage 4 is assigned a respective cam disk 15, which, unlike EP 0 355 731 B1, does not correspond to respective planet carrier is held, but rather by means in each case an internal toothing 16 with the respective planetary gears 12 of each switching stage 4 meshes.
- the internal toothing 16 has the same pitch circle diameter as the internal toothing 14 of the adjacent ring gear 13.
- the number of teeth However, the internal teeth 16 of each cam 17 is too the number of teeth of the internal teeth 14 of the respective ring gear 13 different.
- In the illustrated embodiment has the internal teeth 16 of each cam one to the number of teeth the internal teeth 14 of the respective ring gear 13 larger Number of teeth on.
- the internal teeth 16 of each cam 15 has the number of teeth forty-nine.
- the internal toothing 14 of each ring gear 13, however, has the number of teeth forty-six.
- the number of teeth of the planetary gears 11 meshing external teeth of the sun gear 9 and the clutch gears 10, which - as stated above - of the function forming a common sun wheel is fourteen.
- the two cams 15 are each slidable held axially.
- the cam plate 15 is supported by the first switching stage 4 on the one hand to a thin support disk 19 from which between the sun gear 9 and the planet gears 12th is arranged and with its outer edge, the internal toothing 16th the cam plate 15 axially supports.
- the cam 15 of the second switching stage 4 is supported by an unspecified Ring web on the ring gear 13 of the first switching stage 4 and with its opposite end face on the ring gear 13 of the second switching stage 4 axially slidably.
- Each cam 15 has a radially outwardly through a corresponding recess in the housing 2 projecting switching cam 17, which is for actuating the respective switching element is provided.
- the switching stages 4th accommodate the second transmission part in the same pitch, as for the switching stages of EP 0 355 731 B1 the case was.
- differential gear as in the invention is provided and described in detail above
- the invention can also be used in limit switches, the known switching stages with the aid of planetary gears, as are known from EP 0 355 731 B1. It
- differential gear and planetary gear be combined with each other, so that for different Cams very different ratios can result.
Landscapes
- Retarders (AREA)
- Structure Of Transmissions (AREA)
- Keying Circuit Devices (AREA)
- Switches With Compound Operations (AREA)
Description
- Fig. 1
- zeigt in einem Teilschnitt eine Ausführungsform eines erfindungsgemäßen Schaltergetriebes in Form eines Endschalters,
- Fig. 2
- in einer Schnittdarstellung eine Nockenscheibe des Endschalters nach Fig. 1, und
- Fig. 3
- eine Frontansicht der Nockenscheibe nach Fig. 2.
Claims (4)
- Schaltergetriebe mit wenigstens einer Schaltstufe (4), die durch ein auf einer Antriebswelle (5) koaxial drehfestes Sonnenrad (9), durch einen wenigstens ein Planetenrad (12) tragenden Planetenträger (11) und durch ein mit dem wenigstens einen Planetenrad (12) innenseitig kämmendes, koaxial zur Antriebsachse angeordnetes Hohlrad (13) gebildet ist, das gehäusefest gehalten ist, und wobei die Schaltstufe (4) eine Nockenscheibe (15) zur Betätigung von Schaltelementen aufweist,
dadurch gekennzeichnet, daß die Nockenscheibe (15) mit einer Innenverzahnung (16) versehen ist, die etwa den gleichen Teilkreisdurchmesser aufweist wie die Innenverzahnung (14) des Hohlrades (13), wobei die Innenverzahnung (16) der Nockenscheibe (15) eine zu der Innenverzahnung (14) des Hohlrades (13) unterschiedliche Zähnezahl aufweist, und wobei die Nockenscheibe (15) mittels ihrer Innenverzahnung (16) mit dem wenigstens einen Planetenrad der Schaltstufe (4) kämmt. - Schaltergetriebe nach Anspruch 1, dadurch gekennzeichnet, daß die Zähnezahl der Innenverzahnung (16) der Nockenscheibe (15) größer ist als die Zähnezahl der Innenverzahnung (14) des Hohlrades (13).
- Schaltergetriebe nach Anspruch 2, dadurch gekennzeichnet, daß bei einer Zähnezahl der Innenverzahnung (14) des Hohlrades (13) von 46 und einer Zähnezahl des Sonnenrades (9, 10) von 14 die Zähnezahl der Innenverzahnung (16) der Nockenscheibe (15) 49 beträgt.
- Schaltergetriebe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zur Verstellung der Nockenscheibe (15) ein mit einer Außenverzahnung des Hohlrades (13) kämmendes Schneckengetriebe (18) vorgesehen ist, dessen Übersetzungsverhältnis an die Zähnezahldifferenz der Nockenscheibe (15) zum Hohlrad (13) angepaßt ist.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59812577T DE59812577D1 (de) | 1998-11-04 | 1998-11-04 | Schaltergetriebe mit wenigstens einer Schaltstufe |
AT98120923T ATE289448T1 (de) | 1998-11-04 | 1998-11-04 | Schaltergetriebe mit wenigstens einer schaltstufe |
EP98120923A EP0999567B1 (de) | 1998-11-04 | 1998-11-04 | Schaltergetriebe mit wenigstens einer Schaltstufe |
US09/427,172 US6244984B1 (en) | 1998-11-04 | 1999-10-25 | Switch gear with at least two gear stages |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98120923A EP0999567B1 (de) | 1998-11-04 | 1998-11-04 | Schaltergetriebe mit wenigstens einer Schaltstufe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0999567A1 EP0999567A1 (de) | 2000-05-10 |
EP0999567B1 true EP0999567B1 (de) | 2005-02-16 |
Family
ID=8232915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98120923A Expired - Lifetime EP0999567B1 (de) | 1998-11-04 | 1998-11-04 | Schaltergetriebe mit wenigstens einer Schaltstufe |
Country Status (4)
Country | Link |
---|---|
US (1) | US6244984B1 (de) |
EP (1) | EP0999567B1 (de) |
AT (1) | ATE289448T1 (de) |
DE (1) | DE59812577D1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6796921B1 (en) | 2003-05-30 | 2004-09-28 | One World Technologies Limited | Three speed rotary power tool |
TWM466909U (zh) * | 2013-06-19 | 2013-12-01 | Yi-De Pan | 游星式極限開關改良構造 |
DE202014006109U1 (de) | 2014-07-28 | 2014-08-07 | I-Te Pan | Planeten-Grenzschalter |
US11076509B2 (en) | 2017-01-24 | 2021-07-27 | The Research Foundation for the State University | Control systems and prediction methods for it cooling performance in containment |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3036167A (en) * | 1959-10-29 | 1962-05-22 | Baldwin Lima Hamilton Corp | Position limit switch |
US4616528A (en) * | 1982-05-03 | 1986-10-14 | Vapor Corporation | Valve actuator with continuous manual override |
US4742730A (en) * | 1982-09-30 | 1988-05-10 | The Boeing Company | Failsafe rotary actuator |
US4869139A (en) * | 1987-06-19 | 1989-09-26 | Alexander S. Gotman | Rotating driver with automatic speed and torque switching |
DE3828508C1 (de) * | 1988-08-23 | 1989-12-07 | Maschinenfabrik Stromag Gmbh, 4750 Unna, De | |
JP3182294B2 (ja) * | 1994-05-11 | 2001-07-03 | アスモ株式会社 | 移動体の位置検出装置 |
US5800305A (en) * | 1995-12-29 | 1998-09-01 | Koon-Woo Kang | Reduction gear with coaxial input and output shafts and combining planetary and nonplanetary gearing |
US5779587A (en) * | 1996-08-30 | 1998-07-14 | Curtiss Wright Flight Systems, Inc. | Jam tolerant rotary actuator with shear pins and disengagement coupling |
-
1998
- 1998-11-04 DE DE59812577T patent/DE59812577D1/de not_active Expired - Lifetime
- 1998-11-04 AT AT98120923T patent/ATE289448T1/de active
- 1998-11-04 EP EP98120923A patent/EP0999567B1/de not_active Expired - Lifetime
-
1999
- 1999-10-25 US US09/427,172 patent/US6244984B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE59812577D1 (de) | 2005-03-24 |
ATE289448T1 (de) | 2005-03-15 |
EP0999567A1 (de) | 2000-05-10 |
US6244984B1 (en) | 2001-06-12 |
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