EP2514843B1 - Dispositif de raccordement pour un outil de forage et de percussion d'une foreuse à trou de coulée et foreuse à trou de coulée dotée d'un dispositif de raccordement - Google Patents

Dispositif de raccordement pour un outil de forage et de percussion d'une foreuse à trou de coulée et foreuse à trou de coulée dotée d'un dispositif de raccordement Download PDF

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Publication number
EP2514843B1
EP2514843B1 EP20110163285 EP11163285A EP2514843B1 EP 2514843 B1 EP2514843 B1 EP 2514843B1 EP 20110163285 EP20110163285 EP 20110163285 EP 11163285 A EP11163285 A EP 11163285A EP 2514843 B1 EP2514843 B1 EP 2514843B1
Authority
EP
European Patent Office
Prior art keywords
stop
connection
bore
indicator
connection device
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.)
Not-in-force
Application number
EP20110163285
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German (de)
English (en)
Other versions
EP2514843A1 (fr
Inventor
Frank Helsper
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.)
TMT -BBG Research und Development GmbH
Original Assignee
TMT -BBG Research und Development GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TMT -BBG Research und Development GmbH filed Critical TMT -BBG Research und Development GmbH
Priority to EP20110163285 priority Critical patent/EP2514843B1/fr
Priority to PCT/EP2011/057853 priority patent/WO2012143063A1/fr
Publication of EP2514843A1 publication Critical patent/EP2514843A1/fr
Application granted granted Critical
Publication of EP2514843B1 publication Critical patent/EP2514843B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16—Connecting or disconnecting pipe couplings or joints
    • E21B19/165—Control or monitoring arrangements therefor
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/12—Opening or sealing the tap holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • F27D3/1527—Taphole forming equipment, e.g. boring machines, piercing tools

Definitions

  • the present invention relates to a connection device for connecting a boring bar with a boring shaft of a boring and striking mechanism of a taphole drilling machine
  • the connecting device has a connecting body with a boring bar receiving part with a first receiving bore for receiving a terminal end of the boring bar and with a boring shaft receiving part with a second receiving bore, the is designed as a threaded bore and is used for non-positive connection with a threaded end of the boring machine shaft, wherein the mounting holes are arranged on a longitudinal axis of the connecting body and a bore base of the second receiving bore in a stop position of the threaded end forms an axial stop surface for abutment against an end face of the threaded end.
  • the present invention relates to a tap hole drilling machine, which is provided for connecting a boring bar to a drilling and striking mechanism with such a connection device.
  • Taphole drills are used in the periphery of metallurgical vessels, such as a smelting furnace, and in preparation for tapping, serve to open a puncture hole temporarily filled with a sealant.
  • metallurgical vessels such as a smelting furnace
  • taphole drills are used in preparation for tapping, serve to open a puncture hole temporarily filled with a sealant.
  • a machine according to the related art is out DE 89 07 232 U1 known.
  • a boring bar driven by a drilling and percussion mechanism of the taphole drilling machine is driven into the closure mass occluding the taphole.
  • the drill rods are wear parts, the drill rods are connected via connecting devices, which are also often referred to technically as "connection adapter", with the drilling and hammer mechanism or a boring shaft of the drilling and hammer mechanism.
  • the connecting device serves not only for transmitting the torque of the boring machine shaft to the boring bar, but also for the transmission of hammer blows of a concentric on the Bohrtechnikwelle arranged percussion piston, which acts on a rear end face of the connecting device.
  • connection devices To connect the connecting device with the boring machine shaft, a threaded end of the boring shaft is screwed into a receiving bore of the connecting device, it is important in particular to avoid damage to the thread due to the hammer blows ensure a backlash-free engagement of the external thread of the threaded end in the internal thread of the receiving bore.
  • This is achieved in the known connection devices characterized in that the threaded end is screwed with its end face for generating a fferenvorspannkraft against a stop surface formed by a bore bottom of the receiving bore.
  • connection device to be replaced Due to the constant loading of the connecting device by the hammer blows of the drilling and striking mechanism a more or less frequent replacement of the connecting devices is necessary in practice, for which the connection device to be replaced has to be unscrewed from the threaded end of the boring-mill shaft and a new connecting device has to be screwed onto the threaded end of the boring-machine shaft again.
  • this replacement due to the harsh environment in which this replacement takes place, can not be ensured that the screwing of the new connection device can be done with a constant torque, so that when screwing torque peaks can occur, which can suggest to the fitter that the desired stop the face of the Thread end is done against the bottom of the hole.
  • a corresponding torque peak is taken as an indicator for the desired stop position of the connecting device, then it may be the case that in fact the stop position is not reached and thus it is not ensured that no play occurs in the threaded engagement in the subsequent operation of the tap hole drilling machine.
  • the present invention is therefore based on the object to provide a connection device that allows the installer regardless of the tightening torque to recognize the correct attachment of the connection device on the boring shaft, which is defined by reaching the stop position of the threaded end of the boring in the receiving bore of the connection device.
  • connection device according to the invention has the features of claim 1.
  • connection device for forming a stop position indicating display device between the stop surface and a reference body formed on the connecting surface of the connecting body has a connecting channel with a guided in the connecting channel display piston whose length is at least slightly greater than the length of the connecting channel, such that when plant the end face of the threaded end against the abutment surface protrudes a display end of the indicator piston from the reference surface.
  • the connecting device With the connecting device according to the invention it is ensured that upon reaching the desired stop position upon screwing the connecting body of the connecting device on the threaded end of the boring machine shaft externally on the connecting body clearly recognizable by the installer perceptible display is formed.
  • the inventive type of display is independent of the auxiliary devices that would have to be used in addition to the connection device. Rather, the display device is an integral part of the connection device.
  • a haptic detectable display is realized on a mechanical basis, which works independently of a separate power supply. Rather, the display, so the emergence of the display end of the display piston is generated upon reaching the stop position solely by the already applied tightening torque when screwing the connecting device to the threaded end of the boring machine shaft.
  • the display so the emergence of the display end of the display piston is generated upon reaching the stop position solely by the already applied tightening torque when screwing the connecting device to the threaded end of the boring machine shaft.
  • Particularly noteworthy is that in each case clear recognition of the emerged from the reference surface display end of the display piston works in a particularly harsh environment, since superficial contamination of the connector body, which could affect, for example, a visual display in their effectiveness, without significance for the function of the display are.
  • the reference surface is formed by an end face of the Bohrstangenwillteils of the connecting body.
  • the reference surface When the reference surface is arranged through an end face of a boring bar receiving part in an end portion of the communication passage Reference body is formed, the reference surface can be designed independently of the surface of the connecting body.
  • the reference body is designed as a screw-in sleeve, so that the reference body serves as a mounting element for arranging the indicator piston in the connecting channel and an advantageous mounting of the indicator piston on the front side, namely from the end face of Bohrstangentextteils ago.
  • the connecting channel has an abutment device which cooperates with a stop body of the stop piston, such that when the axial stop end of the indicating piston engages completely in the stop surface, the stop body of the indicating piston rests against the stop device.
  • the indicator piston is captively received in the connecting body by forming the stop device in cooperation with the stopper body.
  • it is ensured by the coincidence of the complete sinking of the abutment end in the abutment surface with the abutment of the stopper body against the stopper that is received in the stop position of the indicator piston substantially backlash in the connecting channel, so that the display length of the display end, ie the length of the surface of the connecting body outstanding Display end clearly indicates the stop Stelung, whereas in the case of a play of the display end against the surface of the connecting body can be clearly concluded that the desired stop position of the threaded end is not reached in the receiving bore of the connecting body.
  • the stop means may be formed by a formed in the connecting channel bore heel.
  • indicator piston In a simple executable variant of the indicator piston is designed as a display pen.
  • a straight course of the connecting channel is particularly advantageous, so that the direction changes in the course of the connecting channel can be avoided and thus minimizes the influence of mechanical friction between the indicator piston and the connecting channel can be.
  • the connecting body has a second stop means, wherein the distance between the stop means is selected so that the displacement of the stopper body of the stop pin between the stop means is equal to a display length or greater than the display length of the display end.
  • the connecting device can be handled independently of the arrangement on the threaded end of the boring machine shaft, without having to take special care not to lose the indicator pin from the connector body.
  • the second stop device is designed as a stop pin protruding into the connecting channel, which is arranged in a receiving bore connecting the connecting channel with the surface of the connecting body, the realization of the second stop device is possible in a particularly simple manner.
  • the second stop device by means of a bore shoulder formed in the connecting channel. It is also particularly advantageous if the connecting channel is inclined at a channel angle to the longitudinal axis of the connecting body, such that the connecting channel extends radially outward from the stop face to the reference surface of the connecting body. Such a configuration allows a rectilinear course of the connecting channel to the reference surface, without an enlargement of the axial stop surface of the receiving bore would be necessary for the realization of the display device. Thus, regardless of the design of the display device, the size of the stop surface alone due to the diameter of the receiving bore, resulting from the necessary dimensioning of the components to achieve the required strength. This also makes it possible to retrofit conventional connection devices with the display device.
  • the taphole drilling machine according to the invention has the features of claim 13 and is accordingly provided with a connection device according to the invention.
  • the tap hole drilling machine 13 has a carriage 14, arranged on the longitudinally movable drilling and percussion 15, which at its front end with a connecting device 16 for connecting a boring bar 17th is provided.
  • a drill bit 18 which can be driven by means of a feed movement of the boring and percussion mechanism 15 into a closure plug 21 formed from a sealing compound 20 which closes a tap hole 22 in the furnace wall 11.
  • the boring bar 17 is acted upon by a torque generated by the boring and striking mechanism 15, as well as impacts exerted on the axial end of the boring bar 17 received in the connecting device 16 by the boring and hammer mechanism 15 become.
  • Fig. 2 shows the connecting device 16, which connects a connecting end 23 of the boring bar 17 with a threaded end 24 of a boring shaft 25 of the drilling and striking mechanism 15.
  • the connecting device 16 has, in a connecting body 26, a first receiving bore 27 and a second receiving bore 28, which are arranged on a longitudinal axis 29 of the connecting body 26.
  • the receiving bore 27 is located itself in a Bohrstangenabilityteil 30 of the connecting body 26, wherein the Bohrstangentextteil 30 is provided with a here formed as a splined shaft-hub connection 31, both the transmission of axial forces F and the transmission of torque M from the connecting device 16 on the boring bar 17th allows.
  • the connecting body 26 has a display device 38 formed within the connecting body 26, which receives a display pin 41 in a connecting channel 39, which connects the stop surface 37 of the receiving bore 28 with an end face 40 of the boring bar receiving part 30.
  • the indicator pin 41 is provided with a stopper body 42 formed here approximately in the middle part of the indicator pin 41, which is received in a connecting channel part 43 which, compared to a connecting channel part 44, has a larger diameter matched to the diameter of the stopper body 42.
  • a bore shoulder 45 is formed, which forms a first stop means, which cooperates with the stopper body 42 such that an axial movement of the indicator pin 41 is limited in the direction of the end face 40 of the Bohrstangenafterteils 30.
  • right connecting channel portion 43 is axially spaced from the bore shoulder 45 away from a second stop means, which is formed by a projecting into the connecting channel part 43 stopper pin 46 which in a receiving bore 47 ( FIGS. Fig. 3 ) is received, which connects a peripheral surface 54 of the connecting body 26 with the connecting channel part 43.
  • the stop pin 46 thus limits an axial movement of the indicator pin 41 in the direction of the stop surface 37 of the receiving bore 28 by a corresponding stop of the stopper body 42 against the stop pin 46.
  • Both stop devices define a possible axial displacement a ( Fig. 3 ) of the stopper body 42 in the connecting channel 39.
  • Fig. 3 shows the connecting device 16 in stop position in which the threaded end 24 of the boring shaft 25 is completely screwed into the receiving bore 28, so that the end face 36 of the threaded end 24 abuts against the stop surface 37.
  • the indicator pin 41 is fully immersed with its stop end 48 in the connecting channel 39, so that a display end 49 of the indicator pin protrudes completely from the end face 40 of the Bohrstangentextteils 30.
  • the displacement path a between the running in the connecting channel 39, formed by the bore 45 and the stopper stop 46 stop means is chosen consistent with a display length 1, with the display end 49 of the indicator pin 41 protrudes from the end face 40.
  • a connection device 55 which has a display device 57 in a connection body 56, which receives a display pin 60 in a connection channel 72 which connects the stop surface 37 of the reception bore 28 with an end face 58 of the boring bar receiving part 59.
  • the indicator pin 60 is arranged with a stop 61 formed on the indicator pin 60 in a connecting channel part 62, which has a larger, compared to a connecting channel part 63, to the diameter of the stopper body 61 diameter.
  • the connecting channel part 62 has a screw-in thread 64 into which a screw-in sleeve 65 is screwed.
  • the screw-in sleeve 65 has two axial end faces 66 and 67, wherein, as based on Fig. 5 becomes clear that the connecting device 55 in a stop position shows in which a stop end 68 of the indicator pin 60 is arranged flush in the stop surface 37, a display end 69 of the indicator pin 60 protrudes from the Einschraubhülse 65, wherein the end face 66 forms a reference surface, the Stop position of the indicator pin 60 makes visible to the outside.
  • the end face 67 of the screw-in sleeve 65 forms a first stop device for the stop body 61 of the indicator pin 60.
  • the second stop device the, as in Fig. 4 prevents the indicator pin 60 from escaping from the connecting channel 72 to the receiving bore 28 of the boring shaft receiving part 32, is formed by a bore shoulder 70 formed between the connecting channel parts 62 and 63.
  • the screw-65 forms not only a reference body of the display device 57, but also also a mounting or mounting means for arranging the indicator pin 60 in the connecting channel 72.
  • the indicator pin 60 for the formation of the display device 57 from the end face 58 of the Bohrstangenfactteils 59 of the connecting body 56 forth in the connecting channel 72 to introduce and secure there by subsequent screwing the screw 65 in the connecting channel part 62.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Earth Drilling (AREA)

Claims (13)

  1. Dispositif de raccordement (16, 55) pour la liaison d'une tige de forage (17) avec un arbre de foreuse (25) d'un mécanisme de forage à percussion (15) d'une machine de forage de trou de coulée (13), dans lequel le dispositif de raccordement comprend un corps de liaison (25, 56) ayant une partie de logement de tige de forage (30, 59) comportant un premier perçage de logement (27) pour loger une extrémité de raccordement (23) de la tige de forage et ayant une partie de logement d'arbre de foreuse (32) comportant un deuxième perçage de logement (28) qui est configuré comme perçage fileté et qui sert à être raccordé par liaison de force à une extrémité filetée (24) de l'arbre de foreuse, dans lequel les perçages de logement sont agencés sur un axe longitudinal (29) du corps de liaison et un fond de perçage du deuxième perçage de logement dans une position de butée de l'extrémité filetée forme une surface de butée (37) axiale pour la butée contre une surface frontale (36) de l'extrémité filetée,
    caractérisé en ce que
    pour la formation d'un dispositif d'indication (38, 57) indiquant la position de butée, entre la surface de butée et une surface de référence formée sur le corps de liaison, le corps de liaison comprend un canal de liaison (39, 72) ayant un piston d'indication guidé dans le canal de liaison, dont la longueur est au moins légèrement supérieure à la longueur du canal de liaison de telle façon qu'une extrémité d'indication (49, 69) du piston d'indication faite saillie de la surface de référence quand la surface frontale de l'extrémité filetée est en butée contre la surface de butée.
  2. Dispositif de raccordement selon la revendication 1,
    caractérisé en ce que
    la surface de référence est formée par une surface frontale (40) de la partie de logement de tige de forage (30) du corps de liaison (26).
  3. Dispositif de raccordement selon la revendication 1,
    caractérisé en ce que
    la surface de référence est formée par une surface frontale (66) d'un corps de référence arrangé dans la partie de logement de tige de forage (59) dans une partie d'extrémité du canal de liaison (72).
  4. Dispositif de raccordement selon la revendication 3,
    caractérisé en ce que
    le corps de référence est formé comme douille de vissage (65).
  5. Dispositif de raccordement selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le canal de liaison (39, 72) comprend un dispositif de butée qui coopère avec un corps de butée (42, 61) du piston d'indication de telle manière que le corps de butée du piston d'indication est en butée contre le dispositif de butée quand une extrémité de butée (48, 68) axiale du piston de butée est complètement enfoncée dans la surface de butée (37).
  6. Dispositif de raccordement selon la revendication 5,
    caractérisé en ce que
    le dispositif de butée est formé par un épaulement de perçage (45) formé dans le canal de liaison (39).
  7. Dispositif de raccordement selon la revendication 5,
    caractérisé en ce que
    le dispositif de butée est formé par une surface frontale (67) du corps de référence.
  8. Dispositif de raccordement selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le piston d'indication est formé comme broche d'indication (41, 60).
  9. Dispositif de raccordement selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le corps de liaison (26, 56) comprend un deuxième dispositif de butée, dans lequel la distance entre les dispositifs de butée est choisie de telle façon que la trajectoire a du corps de butée (42, 61) de la broche d'indication (41, 60) entre les dispositifs de butée soit égale à une longueur d'indication ou supérieure à la longueur d'indication de l'extrémité d'indication (48, 69).
  10. Dispositif de raccordement selon la revendication 9,
    caractérisé en ce que
    le deuxième dispositif de butée est formé comme broche de butée (46) faisant saillie dans le canal de liaison (39), qui est arrangé dans un perçage de logement (47) raccordant le canal de liaison et une surface périphérique (54) du corps de liaison (26).
  11. Dispositif de raccordement selon la revendication 9,
    caractérisé en ce que
    le deuxième dispositif de butée est formé par un épaulement de perçage (70) formé dans le canal de liaison (72).
  12. Dispositif de raccordement selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le canal de liaison (39, 72) est incliné sous un angle de canal vers l'axe longitudinal (29) du corps de liaison (26, 56) de telle manière que le canal de liaison s'étende radialement vers l'extérieur à partir de la surface de butée (37) vers la surface de référence du corps de liaison.
  13. Machine de forage de trou de coulée (13) comprenant un mécanisme de forage à percussion (15) pour enfoncer une tige de forage (17) dans un trou de coulée d'une cuve métallurgique, le trou de coulée étant rempli d'une masse d'occlusion (20), dans lequel la machine de forage de trou de coulée comprend un dispositif de raccordement (16, 55) selon l'une quelconque des revendications 1 à 12 pour la liaison de la tige de forage à l'arbre de foreuse (25) du mécanisme de forage à percussion.
EP20110163285 2011-04-20 2011-04-20 Dispositif de raccordement pour un outil de forage et de percussion d'une foreuse à trou de coulée et foreuse à trou de coulée dotée d'un dispositif de raccordement Not-in-force EP2514843B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20110163285 EP2514843B1 (fr) 2011-04-20 2011-04-20 Dispositif de raccordement pour un outil de forage et de percussion d'une foreuse à trou de coulée et foreuse à trou de coulée dotée d'un dispositif de raccordement
PCT/EP2011/057853 WO2012143063A1 (fr) 2011-04-20 2011-05-16 Dispositif de raccordement pour une aléseuse et un mouton-pendule d'une machine de forage de trou de coulée et machine de forage de trou de coulée ayant un dispositif de raccordement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20110163285 EP2514843B1 (fr) 2011-04-20 2011-04-20 Dispositif de raccordement pour un outil de forage et de percussion d'une foreuse à trou de coulée et foreuse à trou de coulée dotée d'un dispositif de raccordement

Publications (2)

Publication Number Publication Date
EP2514843A1 EP2514843A1 (fr) 2012-10-24
EP2514843B1 true EP2514843B1 (fr) 2013-09-25

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EP20110163285 Not-in-force EP2514843B1 (fr) 2011-04-20 2011-04-20 Dispositif de raccordement pour un outil de forage et de percussion d'une foreuse à trou de coulée et foreuse à trou de coulée dotée d'un dispositif de raccordement

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Country Link
EP (1) EP2514843B1 (fr)
WO (1) WO2012143063A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105274270B (zh) * 2015-10-22 2017-07-04 山东钢铁股份有限公司 一种钻杆自动装卸装置及其使用方法
CN111425141A (zh) * 2020-04-10 2020-07-17 台州市木落自动化科技有限公司 一种液压破碎锤的钎杆

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8907232U1 (de) * 1989-06-13 1989-09-21 Willi Wader GmbH, 5608 Radevormwald Bohrstange mit Stichlochbohren an Hochöfen
US5661888A (en) * 1995-06-07 1997-09-02 Exxon Production Research Company Apparatus and method for improved oilfield connections
DE10115713C2 (de) * 2001-03-29 2003-11-13 Tracto Technik Ein Verfahren, eine Vorrichtung und eine Antriebswelle zum Verbinden von Bohrstangen mit einem Antrieb
DE102009009537A1 (de) * 2009-02-18 2010-08-26 Tmt Tapping-Measuring-Technology Gmbh Stichlochbohrmaschine für metallurgische Behälter, insbesondere Öfen mit schmelzflüssigem Inhalt

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EP2514843A1 (fr) 2012-10-24

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