US1833678A - High voltage oil switch - Google Patents

High voltage oil switch Download PDF

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Publication number
US1833678A
US1833678A US205300A US20530027A US1833678A US 1833678 A US1833678 A US 1833678A US 205300 A US205300 A US 205300A US 20530027 A US20530027 A US 20530027A US 1833678 A US1833678 A US 1833678A
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United States
Prior art keywords
clutch
spring
teeth
switch
driving
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Expired - Lifetime
Application number
US205300A
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English (en)
Inventor
Houst Franz
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Individual
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Individual
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Publication date
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Publication of US1833678A publication Critical patent/US1833678A/en
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Classifications

    • 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

Definitions

  • the object of this invention is to provide a high voltage oil switch, ⁇ whichprovides for a great rapidity of the switching operation so' while requiring only comparatively small power for operating the same, and which is efficient in operation and durable in construction.
  • These objects arev accomplished Aby means of the present invention and by coupling the driving element of the oil switch with the driven element by couplingvdevices comprising a clutch having lost motion and a resilient element, cooperating with each other, said resilient element adaptedto be tensioned in consequence of the inertia of the driven part, whereby the clutch is adapted to accumulate energy and suddenly ytransmit such energy to said driven element at the ino-pr ment when the inertia of the driven part is overcome.
  • the construction of the switch is suchthat the accumulation of the actuating energy transmitted is effected partly in kinetic and partly in a potential form and a sudden transmis- 40 sion of the energy accumulated to the driven elementis madepossible.
  • Fig-.1, 45V 1 shows a vertical central sectionof a switch
  • Fig. 2 is a section on the line IIQH Fig.- 1, ⁇
  • Fig. 3 is a vertical central section of the driving mechanism ofv another construction al form
  • Fig. 1 isaplan view of a brake mechanism
  • lFig. 5 shows a timefway' graph
  • Theswitch shaft 1 0 0 carries at its top end an inverted dish shaped body 13 .detachably secured thereto "and provided at itslbottom side with teeth 14 Fig. Y 2) resembling those ofa. clutch 14.- yThe 7.5
  • teeth 14 engaging between the teeth 14 are provided on a part 15 surrounding the switch shaft and journalled in the casing 11 by means of a ball bearing 16, lthe part carry-4 ing at its top side a dished projectionl 17.
  • the bottom sidelofthe 1part15 carries gear 80 teeth 18 on a part of its circumference into which a toothed 4segment *21, engages,l ⁇ the latter being disposed at the end of alever 20.
  • the lever 20 is pivoted on ⁇ the -cover of theswitch by Vmeans ofa journal pin 22 and 8 is actuated by a pullingA device 23fpivoted to the lever 2() by a journal pin.
  • Apowerful coiled spring ⁇ 25f is interposed betweenaud abutting the parts 13 and 17.
  • the operation of the driving mechanism of the switch is as follows: ⁇
  • the movement of the pulling device 23 is transmitted to the lever ⁇ 2() Vand vthetoothed segment k21. Therefore the part 15 to which one end of the coiled spring 25 is connected is rotated and the spring" 25 is put under tension, the teeth 14 of the clutch 2) being moved in the directionof the arrow p.
  • a'space s which provides lost motion and results in the teeth of the clutch coming into mesh with each other after having moved through the said space s.
  • the driving mechanism imparts movement to the driven part, that is to say, to the switching shaft 10, the parts 9, 8, 7 and the contact member 6.
  • the acceleration of the driven part is brought about by the sudden disengagement of the tensioned spring 25 and by the direct transmission of the movement by means of the clutch. 14. Itis important in this connection that during the movement through the space s an accumulation of the energy of the driving mechanism takes place in two ways, i. e., lirst by the moved masses of the driving mechanism (kinetic energy) and second by the spring 25 put under tension duringthe movement through the space s (potential energy).
  • the spring 25 serves to press the contacts against each other, and for this purpose it is necessary to mount the spring 25 so that, in the closedposition of the switch, it has an initial tension in the closing direction of the contacts.
  • the screw 27 is arranged in accessible position for operating it by removing ⁇ a cap 28. By loosening the screw 27 the contact member is slightly raised andthe resilient contact pieces 4 are more strongly compressed and the pressure of the contacts against each other is increased.
  • FIG. 3 denotes the switch casing
  • 7 the hollow shaft of insulating material carrying the contact member
  • 8 the upper clamping sleeve
  • 10 the switching ⁇ shaft
  • 11 and 11 the two part casing tired to the cover
  • 13 denotes the part secured to the switching shaft and carrying at its bottom side the teeth 14 of the clutch
  • 15 denotes a part surrounding the switching shaft and ⁇ iournalled in the casing 11 by a ball bearing 1G and carrying at its top side the teeth 14 of the clutch 14, while its bottom end is provided with gear teeth 18.
  • the gear teeth 18 engage a toothed segment 2O operated by a pulling device ,23.
  • the spring 25 is arranged exteriorly of the parts 13 and 15 and one of its ends is secured to the part 13 and the other end tothe part 15.
  • rllhe parts 13 and 15 are provided with central recesses in which another spring 30 is arranged, one of its ends being attached to the part 13 and the other end to the part 15.
  • the object of the spring 30 of this form is to produce the contact pressure in the position of rest and with this object in view the spring has a suitable initial tension. For this reason the spring 25 may not be under tension while the switch is in its closed position, the accumulating action of the spring 25 can be still better utilized in this form than in the form shown in Fig. 1. For the better understanding of the action of the spring 25 it may be said that the spring 25 is so proportioned that the winding power required for putting it under tension is smaller than the winding power necessary for starting the contact member having the inertia of the switching disc and the parts 7, 8, 9, 10 connected therewith.
  • the means for producing a brake action on the switching movement may be constructed in various ways.
  • the brake on the movable parts isv produced in such a manner that the action takes place in steps.
  • the braking action on the driving parts takes place irst and then on the driven parts. This is made possible by the above described construction of the clutch 14 since the lost motion (s) between the clutch teeth (14 and 14) permits, during the application of the braking action on the driving parts, continued movement and separate braking action of the driven parts.
  • 15 denotes the part of the driving mechanism provided with gear teeth 18 and embracing the shaft 10.
  • .21 denotes the toothed segment of the lever 2O on which the pulling device 23' acts.
  • 22 denotes the pivot pin of the lever 20; on the pin 22a lever 35 pivoted, the hub or which carries teeth dcoining into engagement with teeth 37 on theehub of the lever 20vafter having moved through the space t.
  • the driven part of the switch drive however, moves still further under the action oi the spring 25owing to the lost motionV (8') now existing Jetween therear of the driving vteeth and the front of the driven teeth 14 and will be arrested only directly before having been moved through the entire angle s (Fig. 2) by a separate braking device.
  • This braking device consists vfor instanceV of a plate spring 50 (Fig. 3) secured to a support 51 on the cover 3 of the switch casing and striking near the end of the switching movement against a pin 52 iiXedto the part 9, whereby the movement of the driven part.
  • the are markedv a illustrates the motion of the driving part and the arc marked b illustrates the. motion ofthe driven part.-
  • the driving part first movesrthrough the angle s.
  • This movement, during which the energyoi" motion is accumulated in the mov-V ing masses of the driving part and in the tension ofthe spring 25 ⁇ is represented by the line 7c.
  • the adjacent line marked Z represents the state of motion from the moment at which the clutch 14 is thrown into operation to the moment at which the clutchBG is thrown into operation whereby a movement through the space or angle thas taken place.
  • the line m illustrates the brake action uptofthe moment at which the driving parts are stopped.
  • a rotatable con tact member adapted to cooperate with the stationary contacts a driving element for such contact member a driven element lconnected VtoV such contact; member a coupling interposed between Vand operativelyV connected with the said driving element and driven element and means for transmitting motion energy to the driving element, such coupling comprising a clutch having lost motion and a resilient element and means for braking iirst the driving part of the said clutch and afterwards the driven part of the clutch.
  • the combination ot stationary contacts rotatable contact member adapted to cooperate with the stationary contacts a driving element for such contact member a driven element connected f tosuch Contact member andaV power accumu vlati'ng coupling interposed between and operatively connected tothe said driving element and driven element .and means yigor braking step by step the moving masses such vmeans coinprising a lever pivoted to the said drivfing element and springs adapted to act on such lever Whenever the driving element reaches a predetermined position.

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  • Mechanical Operated Clutches (AREA)
US205300A 1926-07-10 1927-07-13 High voltage oil switch Expired - Lifetime US1833678A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS1833678X 1926-07-10

Publications (1)

Publication Number Publication Date
US1833678A true US1833678A (en) 1931-11-24

Family

ID=5458467

Family Applications (1)

Application Number Title Priority Date Filing Date
US205300A Expired - Lifetime US1833678A (en) 1926-07-10 1927-07-13 High voltage oil switch

Country Status (3)

Country Link
US (1) US1833678A (de)
DE (1) DE557672C (de)
FR (1) FR639351A (de)

Also Published As

Publication number Publication date
DE557672C (de) 1932-08-26
FR639351A (fr) 1928-06-20

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