EP0999567A1 - Schaltergetriebe mit wenigstens zwei Getriebestufen - Google Patents
Schaltergetriebe mit wenigstens zwei Getriebestufen Download PDFInfo
- Publication number
- EP0999567A1 EP0999567A1 EP98120923A EP98120923A EP0999567A1 EP 0999567 A1 EP0999567 A1 EP 0999567A1 EP 98120923 A EP98120923 A EP 98120923A EP 98120923 A EP98120923 A EP 98120923A EP 0999567 A1 EP0999567 A1 EP 0999567A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gear
- internal toothing
- teeth
- cam disc
- ring gear
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title claims description 11
- 230000009467 reduction Effects 0.000 description 19
- 210000001520 comb Anatomy 0.000 description 3
- 238000009434 installation Methods 0.000 description 1
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 that is driven by a driven sun gear, by a planet carrier carrying at least one planet gear and by one with the at least one planet gear inside intermeshing ring gear arranged coaxially to the sun gear is formed, which is held fixed to the housing, and wherein the Switching stage a cam disk for actuating switching elements having.
- Such a switch gear is in the form of a limit switch known from EP 0 355 731 B1.
- the limit switch is made of two Gear parts assembled, the first gear part through two gear stages serving as reduction stages is formed.
- the second gear part is through total four switching stages formed.
- the gear parts are as planetary gear designed. It is in each switching stage a cam disk is provided, which is used to actuate a corresponding Switching element is used. Every cam is on held a planet carrier, the additional planet gears carries, each with a clutch gear serving as a sun gear and with an internal toothing on the housing Comb the specified hollow gear.
- the object of the invention is a switch gear of the beginning to create the type mentioned, with the same size enables further improved reduction ratios.
- the cam disc an internal toothing is provided, which is approximately the same Pitch circle diameter as the internal teeth of the Ring gear, the internal toothing of the cam disc different number of teeth to the internal toothing of the ring gear has, 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 that are identical in the reduction stages designed to limit switches according to EP 0 355 731 B1 are.
- the number of teeth of the internal toothing the cam disc larger than the number of teeth on the internal toothing of the ring gear.
- a further embodiment of the invention is at one Number of teeth of the internal toothing of the hollow gear of 46 and a number of teeth of the sun gear of 14 the number of teeth of the internal toothing the cam disc 49.
- a switch gear in the form of a limit switch 1 for mechanical Actuation of switching elements, not shown 1 has a housing 2 in which two transmission parts 3, 4 are housed.
- the first gear part 3 is through a reduction stage and the second gear part 4 formed by two switching stages.
- the first gear part 3 is corresponding to a first transmission part according to an embodiment 10 of EP 0 355 731 B1, so that in addition to EP 0 355 731 B1 for further explanation is referred.
- the first gear part 3 is driven by a drive shaft 5 driven, the in not shown Way is connected to a drive unit.
- the drive unit is part of a functional unit such as in particular of a crane that perform precisely controlled movements should.
- the transmission part 3 provides a reduction in the form of a spur gear, the reduce large jumps in the reduction of the planetary levels should. This reduction does not necessarily have to exist his.
- the drive shaft 5 can apply force also take place directly on the sun gear 9.
- the first gear part 3 has a stepped external toothing provided drive wheel 6, which rotatably on the Drive shaft 5 is arranged.
- the drive wheel 6 meshes by means of its external toothing with the external toothing of an eccentric on an axis 5 parallel to the drive shaft 8 mounted gear 7, which also with a two-part, stepped external toothing is provided.
- the axis 8 to Storage of the gear 7 is fixed to the housing 2.
- the external toothing of the gear 7 meshes with a smaller diameter with the external toothing of a sun gear 9, which is coaxial the drive shaft 5 is rotatably mounted.
- the sun gear 9 is rotationally locked with two coaxially connecting clutch gears 10 connected to each other as well are rotationally connected and rotatable are mounted on the drive shaft 5.
- the sun gear 9 has a second, axially offset external toothing with opposite the external toothing meshing with the gear 7 less Diameter on.
- the two clutch gears 10 are with correspondingly identical external gears. With the formed by the sun gear 9 and the clutch gears 10, Comb external teeth serving as a common sun gear for each switching stage 4 three each over the scope of the Sun gear 9 and the clutch gears 10 arranged distributed Planet gears 12, each on a switching stage common planet carrier 11 are held.
- the planet carrier 11 each switching stage 4 is slidably supported on one to the drive shaft 5 coaxial ring gear 13, which with a Internal toothing 14 with the respective planet gears 12 combs.
- the two ring gears 13 are each one External teeth, not specified, are held in place on the housing.
- the two ring gears 13 are each in the circumferential direction held adjustable on the housing 2. There is one for each Adjusting screw 18 is provided.
- the adjustment of the ring gears 13 corresponds in structure and function to the adjustment of Ring gears of the switching stages of the limit switch according to EP 0 355 731 B1, so that for additional explanation of structure and Function of the adjusting screws 18 on EP 0 355 731 B1 is referred.
- the only difference is that as a worm gear Serving adjustment screws 18 for adjusting the ring gears 13 is that the corresponding gear ratio each adjusting screw 18 to the compared to the state of Technology according to EP 0 355 731 B1 changed gear reduction respective cam 15 is adapted.
- Each switching stage 4 is assigned a cam disk 15, which, in contrast to EP 0 355 731 B1, is not due to the respective planet carrier is held, but rather by means each with an internal toothing 16 with the respective planet gears 12 each switching stage 4 combs.
- 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 toothing 16 of each cam disk 17 is closed the number of teeth of the internal toothing 14 of the respective ring gear 13 different.
- the internal toothing 16 of each cam disk 15 has forty-nine teeth.
- each ring gear 13 has the number of teeth forty six on.
- the number of teeth with the planet gears 11 meshing external teeth of the sun gear 9 and the clutch gears 10, which - as mentioned above - by the function form a common sun gear is fourteen.
- the two cam disks 15 are each slidable held axially.
- the cam disk 15 is supported here first switching stage 4 on the one hand on a thin support disc 19 from between the sun gear 9 and the planet gears 12 is arranged and the inner toothing 16 with its outer edge the cam disc 15 is axially supported.
- the cam disc 15 of the second switching stage 4 is based on an unspecified one 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 disc 15 has a radially outward through a corresponding recess in the housing 2 protruding switch cams 17 on that for actuating the respective switching element is provided.
- the number of teeth is greater than the number of teeth of the internal toothing of the associated ring gear 13 and the simultaneous combing of the cam disc 15 with the respective planet gears 12 is for each switching stage 4 created a differential gear that compared to the state of the art according to EP 0 355 731 B1 multiplied reduction ratio achieved.
- differential gear as it is according to the invention is provided and described in detail above can, of course, in other embodiments the invention can also be used in limit switches, the known switching stages with the help of planetary gears, as they are known from EP 0 355 731 B1. It can therefore, depending on the desired switching operations in corresponding Switching stages differential gear and planetary gear can be combined with each other, so that for different Cam disks have very different reductions can result.
Landscapes
- Retarders (AREA)
- Structure Of Transmissions (AREA)
- Switches With Compound Operations (AREA)
- Keying Circuit Devices (AREA)
Abstract
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, die durch ein auf einer Antriebswelle koaxial drehfestes Sonnenrad, durch einen wenigstens ein Planetenrad tragenden Planetenträger und durch ein mit dem wenigstens einen Planetenrad innenseitig kämmendes, koaxial zur Antriebsachse angeordnetes Hohlrad gebildet ist, das gehäusefest gehalten ist, und wobei die Schaltstufe eine Nockenscheibe 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 der 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 true EP0999567A1 (de) | 2000-05-10 |
EP0999567B1 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 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3036167A (en) * | 1959-10-29 | 1962-05-22 | Baldwin Lima Hamilton Corp | Position limit switch |
EP0355731B1 (de) * | 1988-08-23 | 1994-12-28 | Stromag Aktiengesellschaft | Vorrichtung zur Betätigung von Schaltelementen |
EP0684452A2 (de) * | 1994-05-11 | 1995-11-29 | Asmo Co., Ltd. | Positionsgeber und Verfahren zur Positionssteuerung eines sich bewegenden Objektes |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3036167A (en) * | 1959-10-29 | 1962-05-22 | Baldwin Lima Hamilton Corp | Position limit switch |
EP0355731B1 (de) * | 1988-08-23 | 1994-12-28 | Stromag Aktiengesellschaft | Vorrichtung zur Betätigung von Schaltelementen |
EP0684452A2 (de) * | 1994-05-11 | 1995-11-29 | Asmo Co., Ltd. | Positionsgeber und Verfahren zur Positionssteuerung eines sich bewegenden Objektes |
Also Published As
Publication number | Publication date |
---|---|
DE59812577D1 (de) | 2005-03-24 |
EP0999567B1 (de) | 2005-02-16 |
ATE289448T1 (de) | 2005-03-15 |
US6244984B1 (en) | 2001-06-12 |
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