EP0756750B1 - Hebelanordnung zur übertragung einer antriebskraft - Google Patents
Hebelanordnung zur übertragung einer antriebskraft Download PDFInfo
- Publication number
- EP0756750B1 EP0756750B1 EP95915769A EP95915769A EP0756750B1 EP 0756750 B1 EP0756750 B1 EP 0756750B1 EP 95915769 A EP95915769 A EP 95915769A EP 95915769 A EP95915769 A EP 95915769A EP 0756750 B1 EP0756750 B1 EP 0756750B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- lever arrangement
- spring
- arrangement according
- spring accumulator
- 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
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
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H2003/3068—Housing support frame for energy accumulator and cooperating mechanism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3031—Means for locking the spring in a charged state
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/11—Tripping mechanism
Definitions
- the invention relates to an arrangement for transmitting a Driving force on a contact lever of a circuit breaker, with a spring mechanism, a contact lever, one Lever arrangement of several levers, which between the Spring accumulator and the contact lever arranged and through Hinge pins are connected as well as with the spring accumulator and the lever arrangement between receiving, parallel Support plates.
- lever arrangements DE-A-35 42 746 or EP-A-0 088 215.
- the ones described there Low-voltage circuit breakers are for high switching capacity designed and therefore require a very powerful Switching mechanism.
- the object of the invention is to achieve this based on designing the lever arrangement so that weight and Circuit breaker costs in the range of favorable values lie.
- each of the support plates with the insertion of a spacer a parallel limiting part is attached, wherein the lever arrangement is arranged between the limiting parts and the clear distance between the boundary parts is one corresponds to the local width of the lever arrangement and that the Support plates through at least one with each of the support plates connected retaining bolts are connected.
- At least one of the retaining bolts can be used as a stop Limiting the path of parts of the lever arrangement is formed be. It has the advantage of being even Force transmission into the support plates.
- At least one of the retaining bolts can hold both the support plates as well as connecting the limiting parts.
- An arrangement is suitable as a particularly resilient support bearing, in which a fixed hinge pin of the lever arrangement with its ends in a bearing bush, which with a pin in an opening of the associated support plate and with a collar in an opening of the associated limiting part intervenes.
- the support plates can also serve as an abutment for the spring mechanism trained and in a the diameter of Spring accumulator corresponding distance from each other be.
- the structure can be set up be that a pressure piece of the spring accumulator as End stop facing two pairs of end faces are arranged, of which the one pair by the Boundary parts and the second pair by two at the Support plate fastened guide walls are formed.
- Figure 1 shows schematically a lever arrangement for a Low voltage circuit breakers.
- Figure 2 is an arrangement of support plates and Limiting parts shown for receiving the lever assembly.
- Figure 3 is an arrangement corresponding to Figure 2 of support plates and boundary parts together with a Lever arrangement shown.
- Figure 4 shows a single support plate with a riveted boundary part and a guide wall.
- the lever arrangement shown schematically in FIG. 1 serves for actuating a switch contact arrangement, the one movable contact lever 1 and a fixed counter contact 2 has.
- the movable contact lever 1 is on one pivoted lever bracket 3 articulated and is provided with a contact force spring 4.
- Two toggle levers 5 and 6 connect the lever bracket 3 in an articulated manner with a selector shaft 7, common to several poles of a circuit breaker is provided. Switched off according to the shown
- the position of the lever bracket 3 is the toggle lever 5 and 6 shown in a buckled position in which the Knee lever 6 abuts a stop 10.
- a spring accumulator 12 is provided, which as Helical compression spring is formed.
- the Spring 12 serves a cam 13 in connection with toggle levers 14 and 15, at the connecting joint 16 the Cam 13 by means of a roller 17 shown in dashed lines attacked.
- a roller 17 shown in dashed lines attacked.
- One at that Knee joint 16 attacking support lever 20 is by means of a two-stage engagement latch supported. This includes a switch-on half shaft 21, a pivotable Main switch pawl 22, one with the main switch pawl 22 connected roller lever 23 and one with the support lever 20 connected auxiliary pawl 24.
- FIG. 1 An example of a supporting structure is shown in FIG which the lever arrangement explained with reference to Figure 1 is to be accommodated.
- the structure has two parallel ones Support plates 43 and 44 to which are at right angles Switch shaft 7 (Fig. 1 and 3) extends.
- the distance of the Support plates 43 and 44 are dimensioned so that the spring accumulator 12 finds space between them.
- Support plates 43 and 44 are arranged fastening elements 46, each consisting of one with the support plate 43 riveted spacer bolt with an end threaded pin 47 exist. This arrangement results in connection with each a mother 50 a rigid, d. H. rigid connection the support plates 43 and 44.
- Hinge pin 54 ( Figure 3), which, for example, the joints between the toggle lever 33 and the freewheel link 27 and between the support lever 36 and the auxiliary switch pawl 37 form (Figure 1), pass through openings 55 ( Figure 4) in the Limiting parts 51 and 52 and are dimensioned so that they are the support plates 43 and 44 are guided.
- a section of the limiting part 52 protrudes beyond the contour of the support plate 44.
- the limiting part 52 and not in FIG. 4 visible further delimiting part 51 with an indentation 56 provided as a guide surface for a shorter hinge pin serves.
- the impression 56 makes an appropriate one Projection of the hinge pin beyond that in this area guided lever allows.
- Such a shorter hinge pin can for example be assigned to the joint 11 (FIG. 1).
- the spring 12 is in the lower Area of the structure between the support plates 43 and 44 added. Through a special design in this Area ensured that the significant forces involved in the relaxation of the spring accumulator 12 occur without damage can be intercepted for the structure.
- the limiting parts 51 and 52 with one each Stop surface 64 provided, while another stop surface 65 each formed on a guide wall 66 or 67 is in alignment with the boundary parts 51 and 52 are attached by means of further spacers 53 (FIG. 3).
- the guide walls 66 and 67 take the toggle levers between them 14 and 15 ( Figure 1) and form a stop for the hinge 16 of the roller 17.
- a thrust piece 70 which is against all four abutment surfaces mentioned is in FIG. 1 shown schematically.
- the arrangement of the spring elements 75 the hinge 71 the possibility to move under the influence of Kinetic energy of the lever connected to the joint 71 move to a certain extent if the pressure piece 70 already abuts the stop surfaces 64 and 65. This reduces the Strain on the abutment surfaces and the entire structure as well as all hinge and bearing bolts.
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
Claims (10)
- Anordnung zur Übertragung einer Antriebskraft auf einen Kontakthebel (1) eines Leistungsschalters, mit einem Federspeicher (12), einem Kontakthebel (1), einer Hebelanordnung aus mehreren Hebeln (5, 6, 33, 34, 20, 25), die zwischen dem Federspeicher (12) und dem Kontakthebel (1) angeordnet und durch Gelenkbolzen (11, 35, 54) verbunden sind sowie mit den Federspeicher und die Hebelanordnung zwischen sich aufnehmenden, parallelen Tragplatten (43, 44),
dadurch gekennzeichnet, daß an jeder der Tragplatten (43, 44) unter Einfügung jeweils eines Abstandsstückes (53) ein paralleles Begrenzungsteil (51, 52) befestigt ist, wobei die Hebelanordnung zwischen den Begrenzungsteilen (51, 52) angeordnet ist und der lichte Abstand der Begrenzungsteile (51, 52) einer örtlichen Breite der Hebelanordnung entspricht und daß die Tragplatten (43, 44) durch wenigstens einen mit jeder der Tragplatten (43, 44) starr verbundenen Haltebolzen (46) verbunden sind. - Hebelanordnung nach Anspruch 1,
dadurch gekennzeichnet, daß der Haltebolzen (46) mit seinem einen Ende mit der zugehörigen Tragplatte (43) starr vernietet ist, am gegenüberliegenden Ende mit einem Gewindezapfen (47) durch eine Öffnung der anderen Tragplatte (44) hindurchragt und durch eine Mutter (50) fesgespannt ist. - Hebelanordnung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß wenigstens einer der Gelenkbolzen (54) dem Abstand der Tragplatten (43, 44) entsprechend bemessen ist und die Begrenzungsteile (51, 50) mit Durchtrittsöffnungen (55) für den Gelenkbolzen (54) versehen sind. - Hebelanordnung nach Anspruch 2,
dadurch gekennzeichnet, daß wenigstens einer der Haltebolzen (46) als Anschlag zur Begrenzung des Weges von Teilen der Hebelanordnung ausgebildet ist. - Hebelanordnung nach Anspruch 4,
dadurch gekennzeichnet, daß wenigstens einer der Haltebolzen (46) sowohl die Tragplatten (43, 44) als auch die Begrenzungsteile (51, 52) verbindend ausgebildet ist. - Hebelanordnung nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, daß ein feststehender Gelenkbolzen (30) der Hebelanordnung mit seinen Enden in je einer Lagerbuchse (60) ruht, die mit einem Zapfen (62) in einer Öffnung der zugeordneten Tragplatte (43, 44) und mit einem Bund (63) in eine Öffnung des zugehörigen Begrenzungsteiles (51, 52) eingreift. - Hebelanordnung nach einem der vorangehenden Anprüche,
dadurch gekennzeichnet, daß die Tragplatten (43, 44) zugleich als Widerlager des Federspeichers (12) ausgebildet und in einem dem Durchmesser des Federspeichers (12) entsprechenden Abstand zueinander angeordnet sind. - Hebelanordnung nach Anspruch 7,
dadurch gekennzeichnet, daß dem Federspeicher (12) als Endanschlag zwei Paare von Anschlagflächen (64, 65)gegenüberstehend angeordnet sind, von denen das eine Paar durch die Begrenzungsteile (51, 52) und das zweite Paar durch zwei an der Tragplatte (43, 44) befestigten Führungswände (66, 67) gebildet sind. - Hebelanordnung nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, daß an dem bewegbaren Ende des Federspeichers (12) ein Druckstück (70) und ein Gelenk (71) zur Verbindung des Federspeichers (12) mit einem die Speicherenergie zuführenden Kniehebel (15) und einem die Speicherenergie in Richtung des Kontakthebels (1) fortleifenden Treibhebel (25) angeordnet sind und daß mit dem Gelenk (71) ein in das Innere des Federspeichers (12) ragender Stößel (72) verbunden ist, dessen Endstück (73) einerseits einem mit dem Druckstück (70) starr verbundenen Anschlagstück (74) und andererseits unter Einfügung eines Federelementes (75) dem Druckstück (70) gegenübersteht, wobei das Federelement (75) eine gegenüber dem Federspeicher (12) hohe Federkonstante aufweist. - Hebelanordnung nach Anspruch 9,
dadurch gekennzeichnet, daß als Federelement (75) Paare von Tellerfedern dienen und daß das Anschlagstück (74) topfförmig ausgebildet und an seinem Rand mit dem Druckstück (70) starr verbunden ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4416088A DE4416088C1 (de) | 1994-04-20 | 1994-04-20 | Hebelanordnung zur Übertragung einer Antriebskraft |
DE4416088 | 1994-04-20 | ||
PCT/DE1995/000493 WO1995029495A1 (de) | 1994-04-20 | 1995-04-10 | Hebelanordnung zur übertragung einer antriebskraft |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0756750A1 EP0756750A1 (de) | 1997-02-05 |
EP0756750B1 true EP0756750B1 (de) | 1998-07-01 |
Family
ID=6517515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95915769A Expired - Lifetime EP0756750B1 (de) | 1994-04-20 | 1995-04-10 | Hebelanordnung zur übertragung einer antriebskraft |
Country Status (5)
Country | Link |
---|---|
US (1) | US5924323A (de) |
EP (1) | EP0756750B1 (de) |
JP (1) | JPH09512947A (de) |
DE (2) | DE4416088C1 (de) |
WO (1) | WO1995029495A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19727853C1 (de) * | 1997-06-26 | 1998-11-26 | Siemens Ag | Niederspannungs-Leistungsschalter mit einer Schaltwelle |
DE19739702C1 (de) * | 1997-09-04 | 1998-12-10 | Siemens Ag | Niederspannungs-Leistungsschalter mit einer Schaltwelle |
DE10012605A1 (de) | 2000-03-09 | 2001-09-13 | Siemens Ag | Schaltpol für Niederspannungs-Schaltgeräte mit linear bewegbarem Kontaktträger |
DE10120783C1 (de) * | 2001-04-23 | 2002-11-14 | Siemens Ag | Schaltschloss zum Verklinken eines Federspeichers |
DE10343770B4 (de) * | 2003-09-16 | 2005-09-29 | Siemens Ag | Elektrischer Schalter mit einem Schaltschloss |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58113943U (ja) * | 1982-01-28 | 1983-08-04 | 三菱電機株式会社 | 気中しや断器 |
DE3542746A1 (de) * | 1985-11-29 | 1987-06-04 | Siemens Ag | Leistungsschalter mit einer antriebsvorrichtung und einem energiespeicher |
US4901821A (en) * | 1988-10-13 | 1990-02-20 | Siemens Energy & Automation, Inc. | Motor operator for a stored energy operating mechanism |
US5545867A (en) * | 1994-03-30 | 1996-08-13 | General Electric Company | Motor operator interface unit for high ampere-rated circuit breakers |
-
1994
- 1994-04-20 DE DE4416088A patent/DE4416088C1/de not_active Expired - Fee Related
-
1995
- 1995-04-10 DE DE59502687T patent/DE59502687D1/de not_active Expired - Fee Related
- 1995-04-10 WO PCT/DE1995/000493 patent/WO1995029495A1/de active IP Right Grant
- 1995-04-10 JP JP7527271A patent/JPH09512947A/ja not_active Ceased
- 1995-04-10 US US08/727,472 patent/US5924323A/en not_active Expired - Fee Related
- 1995-04-10 EP EP95915769A patent/EP0756750B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0756750A1 (de) | 1997-02-05 |
WO1995029495A1 (de) | 1995-11-02 |
US5924323A (en) | 1999-07-20 |
DE59502687D1 (de) | 1998-08-06 |
JPH09512947A (ja) | 1997-12-22 |
DE4416088C1 (de) | 1995-06-14 |
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