FR2640313A1 - Boring bit with a milling cutter with spiral-shaped reciprocating movement - Google Patents
Boring bit with a milling cutter with spiral-shaped reciprocating movement Download PDFInfo
- Publication number
- FR2640313A1 FR2640313A1 FR8816714A FR8816714A FR2640313A1 FR 2640313 A1 FR2640313 A1 FR 2640313A1 FR 8816714 A FR8816714 A FR 8816714A FR 8816714 A FR8816714 A FR 8816714A FR 2640313 A1 FR2640313 A1 FR 2640313A1
- Authority
- FR
- France
- Prior art keywords
- pinion
- teeth
- cone
- shaft
- cutter
- 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
- 238000003801 milling Methods 0.000 title abstract description 8
- 230000000630 rising effect Effects 0.000 claims abstract 5
- 235000016623 Fragaria vesca Nutrition 0.000 claims description 3
- 235000011363 Fragaria x ananassa Nutrition 0.000 claims description 3
- 240000009088 Fragaria x ananassa Species 0.000 claims 1
- 241000220223 Fragaria Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/006—Mechanical motion converting means, e.g. reduction gearings
-
- 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
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/12—Roller bits with discs cutters
-
- 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
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/16—Roller bits characterised by tooth form or arrangement
-
- 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
- E21B10/00—Drill bits
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/003—Drilling with mechanical conveying means
- E21B7/005—Drilling with mechanical conveying means with helical conveying means
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
Description
TREPAN DE FORAGE AVEC FRAIS~ A IUVE'jT DE V:-ET-VIsNT EN SPIRALE
Préambule. Une tête de tarière de forage dont le pignon-fraise descend et monte en spirale automatiquement sans fin, permet de fraiser les terrains sédimentaires, et non de les broyer et écraser comme pour un trépan normal, avec une section d'attaque de l'outil réduite à la section des dents de la petite fraise, alors que pour un trépan normal ctest au minimum le rayon du trou qui est section d'attaque, ce qui réduit d'autant la puissance nécessaire à léntratnement de l'outil ainsi que son poids ou dispositif faisant office de point d'appuit.Quand la fraise est en position basse le diamètre de l'outil est inférieur à celui du trou foré et de son tubage, et peut ainsi être retiré sans autre dispositif spécifique. En terrains meubles, le matériau est pour une bonne part chassé vers le haut latéralement à la fraise ce qui permet une haute vitesse de pénétration et laisse intact de gros fragments de matériau fossilifère, par ailleurs la force de point d'appuit devient si faible que l'outil peut devenir autonome, composé seulement du trépan, du moteur électrique et batteries, et dtune queuetarière de façon à réaliser une taupe télécommandée capable de changements de direction, notamment de vertical à horizontal.DRILL BIT WITH FRESH ~ A IUVE'jT V: -ET-VIsNT IN SPIRAL
Preamble. A drilling auger head with a milling cutter automatically descends and spirals endlessly, allows milling of sedimentary soils, not grinding and crushing them like a normal drill bit, with a tool attack section reduced to the section of the teeth of the small milling cutter, whereas for a normal drill bit it is at least the radius of the hole which is the attack section, which reduces the power necessary for the drive of the tool as well as its weight or device acting as a support point. When the cutter is in the low position, the diameter of the tool is less than that of the drilled hole and its casing, and can thus be removed without any other specific device. In soft ground, the material is largely driven upwards laterally with a milling cutter which allows a high speed of penetration and leaves intact large fragments of fossiliferous material, moreover the force of the point of contact becomes so weak that the tool can become autonomous, composed only of the drill bit, the electric motor and batteries, and a tail quarry so as to produce a remote-controlled mole capable of changing direction, in particular from vertical to horizontal.
Description. Le pignon-fraise a est monté fou sur l'arbre0, parallele au flanc du cane 0 . Cet arbre tourne autour du cône, relativement fixe puisque solidaire du terrain par les ailettes i), par l'intermédiaire du pont-porte engrenages et du cylindre de carossage 0 du système de transmission (cf. fig. 1 et 3). Le cône est constitué de deux spirales dentées, l'une mor.tante l'autre descendante, qui se croisent sans interférences de dents ou d'intervalles grâce au choix de leurs nombres et dimensions (cf. fig.2). Les dents sont inscrites en creux dans la matrice du cône et leur forme est à double biseau concave de façon à guider le glissement latéral du pignon-fraise sur son axe, pignon dont les dents sont de forme inverse (à double biseau convexe).La petitesse du cône et donc la forte valeur angulaire des spirales, oblige à faire varier l'angle de l'arbre par décentrement de son pied, de environ -26 pour la situation du pignon en bas du cône et en phase acendante, jusqu'à zéro en haut du cône puis jusqu'à +26 en descente avec changement brusque à de nouveau -26 pour remonter une nouvelle fois. Pour obtenir ce balancement, un engrenage G , vissé sur le train de tubes d'entratnement h , multiplie la vitesse de celui-çi par quatre par i'intermédiaire de l'engrenage en position fixe i. et du couple d'engrenages
l+m actionnant ainsi le plateau Dr auquel est articulé , au niveau du grand diamètre du cône, le haut de l'arbre porte-pignon, à la vitesse que nous noterons V.Le bas de l'arbre est articulé avec décentrement à l'axe tournant au centre du c8ne, mû par d'autres engrenages ( g+i et j+k ) à la vitesse V-e/n, n étant le nombre de révolutions du pignon-fraise nécessaires au parcours des deux spirales. On a donc un décalage angulaire du pied de l'arbre par rapport à sa tête de -e/2 quand le pignon-fraise commence sa montée, à zéro en haut du c8ne et e/2 à l'arrivée de nouveau en bas du cône; à ce point une came Qs débraye l'engrenage l de son moyeu à sept cannelures triangulaires su o Le haut de l'arbre ainsi débrayé est freiné par le terrain(ou est mû par un ressort) jusqu'à la butée de départ g , le bas de l'arbre continuant à tourner, permettant ainsi de retrouver l'inclinaison de -e/2 de départ.Description. The pinion-cutter is mounted idly on the shaft 0, parallel to the side of the cane 0. This shaft rotates around the cone, which is relatively fixed since it is secured to the ground by the fins i), via the gear carrier bridge and the camber cylinder 0 of the transmission system (see fig. 1 and 3). The cone consists of two toothed spirals, one mor.tante the other descending, which intersect without interference of teeth or intervals thanks to the choice of their numbers and dimensions (see fig. 2). The teeth are recessed in the matrix of the cone and their shape is with a double concave bevel so as to guide the lateral sliding of the strawberry pinion on its axis, pinion whose teeth are of reverse shape (double convex bevel). smallness of the cone and therefore the high angular value of the spirals, means that the angle of the shaft must be varied by off-centering of its foot, from about -26 for the situation of the pinion at the bottom of the cone and in the ascending phase, up zero at the top of the cone then up to +26 downhill with abrupt change to again -26 to go up again. To obtain this balancing, a gear G, screwed onto the train of drive tubes h, multiplies the speed of this one by four by means of the gear in the fixed position i. and the couple of gears
l + m thus actuating the plate Dr to which is articulated, at the level of the large diameter of the cone, the top of the pinion-carrying shaft, at the speed which we will denote V. The bottom of the shaft is articulated with offset at l 'axis rotating in the center of the chain, moved by other gears (g + i and j + k) at the speed Ve / n, n being the number of revolutions of the pinion-cutter necessary for the course of the two spirals. There is therefore an angular offset of the foot of the shaft relative to its head of -e / 2 when the pinion-cutter begins its rise, at zero at the top of the c8ne and e / 2 on arrival again at the bottom of the cone; at this point a cam Qs disengages the gear l from its hub with seven triangular grooves su o The top of the shaft thus disengaged is braked by the ground (or is moved by a spring) until the starting stop g, the bottom of the shaft continuing to rotate, thus making it possible to find the inclination of -e / 2 at the start.
La figure 1 représente la coupe du trépan; la figure 3 son plan au niveau du système de transmission et débrayage (les engrenages représentés sont du nombre de dents suivant: 28 pour j , 27 pour X , 14 pour k et Qm ); la figure 4 représente le pied et la partie médiane de l'arbre mobile autour du cône.Figure 1 shows the section of the drill bit; Figure 3 its plan at the transmission and declutching system (the gears shown are of the following number of teeth: 28 for j, 27 for X, 14 for k and Qm); Figure 4 shows the foot and the middle part of the movable shaft around the cone.
La figure 2 représente la projection sur un plan du cane au niveau du diamètre de pied. Les losanges bisautés I représentent l'empreinte des têtes des dents du pigon fraise. Les dents 2 sont prises dans la masse t du cane. Figure 2 shows the projection on a plane of the cane at the foot diameter. The bevelled diamonds I represent the imprint of the heads of the teeth of the strawberry pig. The teeth 2 are taken from the mass t of the cane.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8816714A FR2640313B1 (en) | 1988-12-14 | 1988-12-14 | DRILL BIT WITH SPIRAL COMBINATION MILL |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8816714A FR2640313B1 (en) | 1988-12-14 | 1988-12-14 | DRILL BIT WITH SPIRAL COMBINATION MILL |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2640313A1 true FR2640313A1 (en) | 1990-06-15 |
FR2640313B1 FR2640313B1 (en) | 1991-04-05 |
Family
ID=9373084
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8816714A Expired - Lifetime FR2640313B1 (en) | 1988-12-14 | 1988-12-14 | DRILL BIT WITH SPIRAL COMBINATION MILL |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2640313B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999034085A1 (en) * | 1997-12-29 | 1999-07-08 | Stefano Tongiani | Combined rotation drill |
CN115162953A (en) * | 2022-09-07 | 2022-10-11 | 山东省煤田地质局物探测量队 | Perforating device for geological exploration |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1391626A (en) * | 1920-04-27 | 1921-09-20 | Richard J Bequette | Drill-head for well-driling apparatus |
US1778966A (en) * | 1927-09-06 | 1930-10-21 | Reed Roller Bit Co | Roller bit |
US2894727A (en) * | 1955-05-17 | 1959-07-14 | Homer I Henderson | Drilling bit |
US3235016A (en) * | 1963-12-23 | 1966-02-15 | George C Dennis | Auger with travelling cutter |
DE2458295A1 (en) * | 1974-12-10 | 1976-06-16 | Ruhrkohle Ag | Coal seam drill with several spindles - outer heads have angled cutter discs peripheral on head to reduce wear |
GB2028897A (en) * | 1978-08-26 | 1980-03-12 | Paurat F | Equipment for the sinking of shafts |
EP0050954A1 (en) * | 1980-10-23 | 1982-05-05 | Cementation Research Limited | Boring tools |
-
1988
- 1988-12-14 FR FR8816714A patent/FR2640313B1/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1391626A (en) * | 1920-04-27 | 1921-09-20 | Richard J Bequette | Drill-head for well-driling apparatus |
US1778966A (en) * | 1927-09-06 | 1930-10-21 | Reed Roller Bit Co | Roller bit |
US2894727A (en) * | 1955-05-17 | 1959-07-14 | Homer I Henderson | Drilling bit |
US3235016A (en) * | 1963-12-23 | 1966-02-15 | George C Dennis | Auger with travelling cutter |
DE2458295A1 (en) * | 1974-12-10 | 1976-06-16 | Ruhrkohle Ag | Coal seam drill with several spindles - outer heads have angled cutter discs peripheral on head to reduce wear |
GB2028897A (en) * | 1978-08-26 | 1980-03-12 | Paurat F | Equipment for the sinking of shafts |
EP0050954A1 (en) * | 1980-10-23 | 1982-05-05 | Cementation Research Limited | Boring tools |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999034085A1 (en) * | 1997-12-29 | 1999-07-08 | Stefano Tongiani | Combined rotation drill |
CN115162953A (en) * | 2022-09-07 | 2022-10-11 | 山东省煤田地质局物探测量队 | Perforating device for geological exploration |
CN115162953B (en) * | 2022-09-07 | 2022-12-02 | 山东省煤田地质局物探测量队 | Perforating device for geological exploration |
Also Published As
Publication number | Publication date |
---|---|
FR2640313B1 (en) | 1991-04-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |