US3536205A - Apparatus for manipulating covers of industrial ovens - Google Patents

Apparatus for manipulating covers of industrial ovens Download PDF

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Publication number
US3536205A
US3536205A US748493A US3536205DA US3536205A US 3536205 A US3536205 A US 3536205A US 748493 A US748493 A US 748493A US 3536205D A US3536205D A US 3536205DA US 3536205 A US3536205 A US 3536205A
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United States
Prior art keywords
opening
cover
electromagnet
charging
vertical
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Expired - Lifetime
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US748493A
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English (en)
Inventor
Martin Bender
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hartung Kuhn and Co Maschinenfabrik GmbH
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Hartung Kuhn and Co Maschinenfabrik GmbH
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B25/00—Doors or closures for coke ovens
    • C10B25/20—Lids or closures for charging holes

Definitions

  • first and second portions have a longitudinally adjacent first and second portions.
  • An electromagnet is mounted on the first portion and has a contact face which can be placed into magnetic contact with the cover.
  • the electromagnetic means is rotatable about a vertical axis.
  • First support means is located above and connected with the second portion of the member and swingably mounts the latter for universal movement with reference to the opening to maintain the contact face substantially in parallelism with the general plane of the opening.
  • Second support means is located above and connected with the first support means and mounts the same for substantially vertical movement with reference to the opening, as well as for turning movement about a substantially vertical axis laterally offset from the opening so that, when the cover is magnetically gripped by the electromagnet, the latter may be rotated to thread the cover into or out of the opening and thereafter the cover may be raised by the electromagnet and pivotally moved to a position laterally of the opening, or returned to the opening from such position.
  • the present invention relates generally to lifting apparatus, and more particularly to apparatus for manipulating covers for industrial ovens.
  • Certain industrial ovens for instance horizontal coke ovens have upwardly directed charging openings which are provided with covers provided in the openings. These covers must periodically be removed, for instance to admit a new charge into the oven, and thereupon must be restored to a position where they close the openings.
  • electromagnetic devices including an electromagnet which can magnetically engage the cover and which is mounted for rotation so as to thread the cover into or out of the opening. The electromagnet can furtherbe raised and lowered so as to remove the cover from the opening when it is unthreaded, or restore it to the opening prior to being threaded thereinto.
  • one feature of my invention resides in the provision of apparatus for manipulating a magnetizable cover for an upwardly directed opening in an industrial oven or the like.
  • This apparatus comprises an elongated member arranged to be positioned upwardly of the opening in substantial parallelism with the substantially horizontal general plane thereof, this member having longitudinally adjacent first and second portions.
  • Electromagnetic means is mounted on the first portion and has a contact face which is placeable into magnetically attracting contact with the cover.
  • First support means is located above and connected with the second portion of the member and swingably mounts the latter, and thereby the electromagnetic means, for universal movement with reference to the opening so as to maintain the contact face substantially in parallelism with the general plane of the opening.
  • second support means is provided which is located above and connected with the first support means. The second support means mounts the first support means, and thereby the elongated member, for substantially vertical movement with reference to the opening, as well as for turning movement about a substantially vertical axis laterally offset from the opening so that, when the cover is magnetically gripped by the electromagnetic means, it may be raised from and pivotally moved to a position laterally of the opening for exposing the same, and vice versa.
  • the aforementioned gear will be a worm gear, the worm of which is connected with a universally jointed shaft connecting it with the drive motor.
  • the worm wheel which cams with the worm is secured on the outer peripheral surface of a cup-shaped member which is rotatably mounted on the elongated member in a plane parallel to the general plane of the latter and which is tightly but releasably connected with the electromagnet at the lower portion of the cup-shaped member which extends through the elongated member.
  • This connection with the electromagnet is in spaced relationship so that collector rings of a collector ring body located in the cup-shaped member cooperate with the conductors of a direct-current source.
  • the supporting frame constituting the first support means for the elongated member is disposed laterally from the opening of the charging hopper which is provided on a lorry, and is connected with'a raising device by means of a movable thread coupling having a thread of steep pitch.
  • a screw cap is provided for this device which is connected and positioned against rotation but for vertical displacement in a vertically extending fixed supporting tube.
  • a screw spindle is connected to the supporting frame and is axially displaceable as well as circumferentially displaceable in the fixed supporting tube in dependence on the vertical stroke of the raising device.
  • the upper side of the supporting frame is secured to a vertical carrier sleeve which is elastically mounted on a supporting rod which coaxially extends through the carrier sleeve.
  • the vertical carrier sleeve may advantageously be guided for axial displacement, but without freedom of rotary movement, within a pivoting sleeve which is mounted on a cross member, the latter in turn being secured to the upper end of the aforementioned supporting rods.
  • the free ends of the cross member engage in guide slots provided in the outer fixed supporting tube so as to permit vertical lowering movement and horizontal turning movement of the supporting frame with the elongated member.
  • the upper end of the pivoting sleeve is secured to the screw spindle. This provides for a controlled movement of the supporting frame and the electromagnet,
  • the raising device can be regulated to a preset course which isactuated in dependence on the position of the lorry.
  • the guideslots mentioned above are advantageously posi 1 further raising of. the free endsof the crossmemberin the shorter vertical portion provides nonrotatable positioning of responding number ,of universal joints.
  • the latter may be formed as knuckle joints or as ball joints.
  • two of-the universal'joints 18 adjacent to every link rod 17 are spaced from one another by a distance which i should be as large as possible. In other words, they are provided as near as possible .to the hanger bearing and the sup- .porting frame, respectively, so that the hanger bearing and withit an electromagnet 19 mounted: ona first laterally extending portion thereof, identified with reference numeral 16, may be capable of undergoing universal movement within a .wide range of possibilities.
  • the electromagnetl9 is mounted at the underside of the portion 16a andis coupled with a worm gear 20 for rotation thereby.
  • the worm gear 20 in turn is conthe entire construction, including the'electromagnet and the t cover attached thereto, in a raised normal position.
  • a bearing spacer will advantageously be provided which is mounted at the undersideof the screw gap so that the free ends of thecrossmember penetrate in spaced relationship through the bearing spacer whose lower end constitutes a guide for the pivoting sleeve and which is nonrotatably but axiallydisplaceably guided in a slot of the fixed supporting tube.
  • the supporting frame can.
  • the carrier sleeve with a traverse member located in the upper longitudinal section of the carrier sleeve, the traverse member being provided with a bore which is somewhat larger than the diameter of the supporting rod so that the traverse member can serve as an abutment for a pressure spring surrounding the supporting rod downwardly of the traverse member and abutting with its other end against the latter and with its lower end against a thrust washer which is secured by nuts screwed to the lower end of the supporting rod.
  • the hanger bearing which is positioned in a substantially horizontal plane and the electromagnet, which is rotatable in aplane parallel to the plane of the hanger bearing, may be subjected to universal movement, the extent of this mobility being determined by the length of the link rods 17 and the distance betweenthe universal joints l8.associated therewith.
  • the cover of the charging opening of an industrial oven which charging opening is identified with reference numeral 24, may be threaded into or out of its seat by rotation of the electromagnet even if the electromagnet is eccentricallypositioned relative to the cover 23.
  • the worm gear may be replaced with a chain drive if desired.
  • FIG. ,1 reference numeral 10 identifies a partially shown lorry including a frame 11 which carries a supporting tube 12.
  • a rocking lever 13 is swingably mounted in a vertical plane about an axis 14, and a supporting frame 15 constituting the first supporting meansof.
  • my apparatus is suspended from the free end 13a of the rocking lever 13.
  • the supporting frame 15 is thus vertically displaceable upwardly and downwardly and it is turnably guided in the fixed supporting tube 12.
  • a hanger issuing fromthe now exposed charging opening 24 will be channeled into the hood and thereafter be extracted by suction with the gases being cleaned or otherwise treated.
  • the charging hopper 28 is connected, as shown, to a coal or coke container 29 provided in conventional manner with a spinning distributor plate 30.
  • FIG. 1 illustrates that the supporting frame 15 is mounted laterally of the opening of the charging hopper and is secured at its upper side to a vertical carrier. sleeve 31. Located within when the electromagnet is turned by the associated gear.
  • the carrier sleeve has provided therein a traverse member 32 which in turn is formed with a bore 34 whose diameter is slightly larger than the outer diameter of a supporting rod 33 extending coaxially with a carrier sleeve.
  • the traverse member 32 is adapted to serve as an abutment for a pressure spring 35 which bears against it with its upper end whereas its lower end is supported on a thrust washer 36. which in turn is secured to the lower end of the supporting rod by the nuts 37 which are screwed onto the latter.
  • the effective load acting on the cover of the charging opening can be adjusted as desired, so that rotationof the cover is assured upper end of the supporting rod 33 is secured'to a cross member 38, the two free ends 38a and38b of which are providedwith guide rollers 39.
  • guide I slots 40 which in the illustrated embodiment are diametrically opposite one another and provided.
  • in the fixed supporting bearing 16in form of an elongated member is freely suspended on the vertically movable supporting frame 15 by means of four link rods l7'of identical length.
  • The-ends of these rods 17 are connected with the supporting frame and the hanger. bearingvia universal joints 18 whichare positioned 1 tube 12.
  • One of these two guide slots 40 is diagrammatically shown as to its outline at the right-hand side of FIG.
  • each of the guide slots 40 consists of a longer vertical section 40a which serves to guide the respective guide roller 39 during lowering andraising movement of the electromagnet, that is the positioning thereof after the associated guide roller 39 has moved out of the section 40a and over the full extent of the section 40b, can be fixed by further raising the cross member within the section 40c of the guide slot 40, which section 40c is also vertically positioned and extends upwardly from the remote end of the section 40d but is shorter than the section 40a.
  • FIG. 3 further shows the position of a pivoting sleeve 41 which is connected with the cross member 38 and is arranged coaxially with reference to the fixed supporting tube 12.
  • the inner wall surface of the pivoting sleeve 41 is provided with grooves 41a and 41b and the carrier sleeve 31 for the supporting frame is displaceable in coaxial relationship with the pivot ing sleeve but is prevented from rotating relative thereto.
  • a screw spindle 42 is welded into the upper opening of the pivoting sleeve 41 coaxially thereto, and is provided with a thread 43 having a'steep pitch.
  • a nut 44 cooperates with the thread 43 and is axially displaceable along the inside wall of the supporting tube 12 via a guide ring 45.
  • a screw cap 46 is threaded onto the upper end of the nut 44 and sealingly covers the screw spindle;
  • a connecting member 48 is hingedly connected with the eye 47 andin turn is articulately connected to the free end 13a of the rocking lever 13 shown in FIG. 1.
  • a bearing spacer 49 is provided at the underside of the nut 44.
  • the bearing spacer is penetrated in spaced relationship by the free ends 38a, 38b of the cross member 38 and the lower end of the bearing spacer 49 is provided exteriorly thereof with a guide ring 49a which provides for a coaxial guidance of the pivoting sleeve 41 relative to the fixed supporting tube 12.
  • a key 49b is guided in an axially extending slot 120 provided in the interior surface of the fixed supporting tube 12, thus assuring that the bearing spacer 49 cannot be rotated relative to the tube 12.
  • An inner guide ring 49 constitutes a bearing for the lower part of the pivoting sleeve 41.
  • the screw spindle 42 is connected withthe supporting frame and is axially displaceable as well as rotationally displaceable in the fixed supporting tube 12 in dependence on the vertical stroke of the device under the influence of the weight of the supporting frame 15 and the hanger bearing 16.
  • the pivoting movement is automatically provided by the steep pitch of the thread coupling 42, 44, 46 at such time as the free ends 38a, 38b of the cross member 38 reach the horizontal portion 40b of the respective guide slots 40, namely as they move out of the vertical portion 40a as the device is used to raise the cover, or out of the vertical portion 400 as the device is used to lower the cover.
  • the gear 20 is a worm gear consisting of a worm 50 and a worm wheel 51.
  • the worm 50 is connected with the universally jointed shaft 22 which in turn is coupled with a conventional drive motor 21.
  • the worm wheel 51 is shrink fitted onto the outer surface of a pot-shaped or cup-shaped member 52.
  • the latter is rotatably supported on the lower portion of a casing 54 by means of an antifriction bearing 53 which is secured in the hanger bearing concentrically with reference to an opening 55 provided in the same.
  • a carrier pin 56 extends downwardly coaxially to the vertical turning axis or rotating axis of the cup-shaped member 52. This pin extends through a central aperture in the electromagnet 19 and is detachably secured to the underside of the cup-shaped member 52 by means of a wedge connection and a nut 57.
  • the member 52 includes a cylindrical collector ring body 58 located therewithin, and provided with four collector rings which cooperate with the conductors 60 of a source of direct current, for example.
  • a casing 61 has an upper part and a lower part, the upper part being provided with a flange 61a and the lower part being provided with a flange 54a which are releasably connected with one another.
  • the upper part of the casing 61 is provided with a central opening 62 and a sealing gasket 63 which is provided at the underside of the edge abounding this opening 62.
  • the latter is diametrically traversed by a traverse member 64 provided at its underside with two pins 65.
  • the four conductors 60 which are connected to a source of electrical energy with the electromagnet, are secured to the pins 65 and a micr'oswitch 19a is provided which is connected with nonillustrated but well known control means for the purpose of indicating that whenever the cover of the charging opening adheres to the electromagnet. How this is accomplished is wellknown in the art and need not be further discussed.
  • Apparatus for manipulating a magnetizable cover for an upwardly directed opening in an industrial oven or the like comprising incombination, an elongated member arranged to bepositioned upwardly of the opening in substantial parallelism with the substantially horizontal general plane thereof, said member having longitudinally adjacent first and second portions; electromagnetic means having a rotatable pivot mounted at a free end of saidfirst portion against axial displacement, said electromagnetic means having a contact face placeable into magnetic contact with said cover; first support means located above said second portion and comprising a plurality of support members having identical length and first ends and second ends; second support means comprising a vertical shaft extending above said second portion and a support element on said shaft; universal bearing means mounting said first ends on said second portion and said second ends on said support element at identical distances from the shaft axis so that said elongated member and contact face remain at all times in at least substantial parallelism with the general plane of said opening with said electromagnetic means being free to move relative to the axis of said shaft radially thereof; and a carriage above
  • said drive means comprising an electric motor and gear means operatively as sociated therewith, both being mounted on said elongated member.
  • said drive means further comprising universal-joint drive shaft means operatively associated with said motor and said worm gear, a cup-shaped element carrying at its outer peripheral, l
  • cup-shaped element 1 having a lower open end penetrating said member and being tightly but-'releasably connected with said electromagnetic means; a collector ring body provided on said electromagnetic means and located in said cup-shaped element, and cooperat ing collector rings andconductors respectively provided on said body andsaid element.
  • said coupling including a "screw cap connected to-said lifting means rotationallyjmmovable but with freedom of vertical displacement, a fixed supporting tube surrounding said screw cap, and a screw spincrossmember which is in turn connected to an upper end of said supporting rod; said carrier sleeve being mounted and guided in said pivoting sleeve nonrotatably but for axial displacement; said tube having a pair of guide slots each comprising an axially extending portion and a circumferentially extending portion, and said crossmember having opposite free ends respectively extendinglinto said'guide slots and connecting the upper end of said'pivo'ting sleevelwith said screw spindle.
  • said spacer element having a lowerend portion constituting a guide for said pivoting sleeve and being in turn provided at the exterior thereof with a guide portion cooperating with a slot provided in said supporting tube so that said spacer element is guided in said tube for axial movement-but prevented from rotational movement.
  • Apparatus as defined in claim 8 further comprising a traverse member located within the'upper section of said carrier sleeve and provided with a bore having a diameter slightly larger than that of. said supporting rod, a helical pressure bearing against said traverse member and a lower end, and a thrust washer mounted on the lower end of said supporting rod with said lower end of said pressure spring bearing against said thrust washer.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)
  • Holders For Apparel And Elements Relating To Apparel (AREA)
  • Transmission Devices (AREA)
US748493A 1967-07-29 1968-07-29 Apparatus for manipulating covers of industrial ovens Expired - Lifetime US3536205A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH0063448 1967-07-29

Publications (1)

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US3536205A true US3536205A (en) 1970-10-27

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US748493A Expired - Lifetime US3536205A (en) 1967-07-29 1968-07-29 Apparatus for manipulating covers of industrial ovens

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US (1) US3536205A (enrdf_load_stackoverflow)
BE (1) BE718717A (enrdf_load_stackoverflow)
DE (1) DE1671317B2 (enrdf_load_stackoverflow)
FR (1) FR1576060A (enrdf_load_stackoverflow)
GB (1) GB1186297A (enrdf_load_stackoverflow)
LU (1) LU56503A1 (enrdf_load_stackoverflow)
NL (1) NL157051B (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709387A (en) * 1971-06-24 1973-01-09 Koppers Co Inc Apparatus for handling lids and charging coal into coke ovens
US3753502A (en) * 1971-06-25 1973-08-21 Still Fa Carl Device for automatically turning, lifting off and replacing covers on the charging shafts of coking ovens
US3774787A (en) * 1972-09-15 1973-11-27 Vance Middough W & Ass Lid lifter and drop sleeve mechanism
US3985627A (en) * 1973-04-12 1976-10-12 Klockner-Humboldt-Deutz Aktiengesellschaft Device for magnetic lifting and removal of the feed opening cover of a coking chamber oven
US3998705A (en) * 1973-10-11 1976-12-21 Klockner-Humboldt-Deutz Aktiengesellschaft Device for controlling the seizure of a cover for the charge opening of a coking furnace
US4009081A (en) * 1974-11-27 1977-02-22 Nippon Kokan Kabushiki Kaisha Dust arresting apparatus for a coke dry quenching station
US4072239A (en) * 1976-02-10 1978-02-07 Bergwerksverband Gmbh Arrangement for charging a furnace in a gastight and dust-tight manner
US4988411A (en) * 1989-05-26 1991-01-29 Harting, Kuhn & Co. Naschinenfabrik Gmbh Filling car for a coke oven battery
CN113562618A (zh) * 2020-04-28 2021-10-29 中国航发商用航空发动机有限责任公司 涡轮盘调平吊具及其吊具转接段、涡轮盘调平方法

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709387A (en) * 1971-06-24 1973-01-09 Koppers Co Inc Apparatus for handling lids and charging coal into coke ovens
US3753502A (en) * 1971-06-25 1973-08-21 Still Fa Carl Device for automatically turning, lifting off and replacing covers on the charging shafts of coking ovens
US3774787A (en) * 1972-09-15 1973-11-27 Vance Middough W & Ass Lid lifter and drop sleeve mechanism
US3985627A (en) * 1973-04-12 1976-10-12 Klockner-Humboldt-Deutz Aktiengesellschaft Device for magnetic lifting and removal of the feed opening cover of a coking chamber oven
US3998705A (en) * 1973-10-11 1976-12-21 Klockner-Humboldt-Deutz Aktiengesellschaft Device for controlling the seizure of a cover for the charge opening of a coking furnace
US4009081A (en) * 1974-11-27 1977-02-22 Nippon Kokan Kabushiki Kaisha Dust arresting apparatus for a coke dry quenching station
US4072239A (en) * 1976-02-10 1978-02-07 Bergwerksverband Gmbh Arrangement for charging a furnace in a gastight and dust-tight manner
US4988411A (en) * 1989-05-26 1991-01-29 Harting, Kuhn & Co. Naschinenfabrik Gmbh Filling car for a coke oven battery
CN113562618A (zh) * 2020-04-28 2021-10-29 中国航发商用航空发动机有限责任公司 涡轮盘调平吊具及其吊具转接段、涡轮盘调平方法

Also Published As

Publication number Publication date
LU56503A1 (enrdf_load_stackoverflow) 1968-10-28
FR1576060A (enrdf_load_stackoverflow) 1969-07-25
DE1671317C3 (enrdf_load_stackoverflow) 1975-06-26
DE1671317B2 (de) 1974-11-14
NL157051B (nl) 1978-06-15
GB1186297A (en) 1970-04-02
NL6810591A (enrdf_load_stackoverflow) 1969-01-31
DE1671317A1 (de) 1971-08-26
BE718717A (enrdf_load_stackoverflow) 1968-12-31

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