DE901404C - Suction head bearing for rock drilling machines, especially for coal mining - Google Patents
Suction head bearing for rock drilling machines, especially for coal miningInfo
- Publication number
- DE901404C DE901404C DEH7555A DEH0007555A DE901404C DE 901404 C DE901404 C DE 901404C DE H7555 A DEH7555 A DE H7555A DE H0007555 A DEH0007555 A DE H0007555A DE 901404 C DE901404 C DE 901404C
- Authority
- DE
- Germany
- Prior art keywords
- suction head
- coal mining
- drilling machines
- channel
- head bearing
- 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
Links
- 238000005553 drilling Methods 0.000 title claims description 3
- 239000003245 coal Substances 0.000 title claims 2
- 238000005065 mining Methods 0.000 title claims 2
- 239000011435 rock Substances 0.000 title description 4
- 230000007704 transition Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000269799 Perca fluviatilis Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/0009—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts
- B23Q1/0018—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means
- B23Q1/0027—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means between moving parts between which an uninterrupted energy-transfer connection is maintained
- B23Q1/0036—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means between moving parts between which an uninterrupted energy-transfer connection is maintained one of those parts being a tool
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Description
Die Erfindung betrifft eine weitere Ausbildung der durch Patent 895 88, geschützten Saugkop flagerung für Gesteinsdrehbohrmasthinen.The invention relates to a further embodiment of the patent 895 88, protected suction head storage for rock drilling masts.
Bei dem Patent 895 881 ist der den Saugkopf aufnehmende Lagerzapfen mit einer die Verlängerung der Innenbohrung des Drehbohrrohres darstellenden Innenbohrung gleichen oder größeren Durchmessers versehen, die nur bis etwa auf das erste Dri:tel der Länge des Lagerzapfens durchgeführt worden ist und dann ohne Vorsprünge, vorzugsweise bogenförmig in einen schrägen Kanalgleichen Durchmessers übergeht, der in der Mitte des Lagerzapfens austritt.In the '895,881 patent, the trunnion receiving the suction head is with an inner bore representing the extension of the inner bore of the rotary drill pipe the same or larger diameter provided, which only up to about the first third: tel the length of the journal has been carried out and then without projections, preferably In the shape of a curve, it merges into an inclined channel of the same diameter, which is in the middle of the journal emerges.
Beim Arbeiten der Drehbohrmaschine treten erhebliche Beanspruchungen des Materials des Lagerzapfens auf, da der Absaugkanal von verhältnismäßig großer lichter Weite eine Schwächung der Festigkeit des Werkstoffes zur Folge hat. Insbesondere sind auch Kerbwirkungen für das Entstehen von Brüchen .dies Lagerzapfens an -ler gefährdeten Stelle verantwortlich.Considerable stresses occur when working with the rotary drill of the material of the bearing pin, since the suction channel is relatively large clear width leads to a weakening of the strength of the material. In particular are also notch effects for the occurrence of breaks endangered place responsible.
D,ie Erfindung beseitigt diese Nachteile durch besondere Formgebung der Innenbohrung des Lagerzapfens. Erfindungsgemäß ist die der Län.gsachsenrichtung des Lagerzapfens folgende Innenbohrung über den bogenförmigen Übergang vom Längskanal zum Schrägkanal hinaus durchgeführt und endet in einer vorzugsweise ballen- oder halbkugelförmig ausgebildeten Vertiefung. Durch diese Formgebung des Längskanals werden die .Materialspannungen, die infolge der verhältnismäßig großen lichten Weite,der Bohrung in dem Lagerzapfen auftreten, behoben, ohne daß Nacktteile anderer Art in Kauf genommen werden müssen. Es kann natürlich der Fall eintreten, d'aß durch den abgesaugten Gresteinsstäu,b der ballen- oder halbkugelförmige Kanalfortsitz sich mit Gesteinsstaub anfüllt: Dieser- Vorgang führt indessen nicht zu Verstopfungen des Absaugkanals, da der bogenförmige Übergang vom Längskanal zum Schrägkanal grundsätzlich erhalten bleibt. Besonders vorteilhaft ist die Ausbildung des ballen- oder halbkugelförmigen Kanalfortsatzes für die Ausgleichung von uMaterialspannunbgge nggen dann, wenn der Durchrnes-ser des Kanalfortsatzes kleiner isst als der Durchmesser des Längs- bzw. Schrägkanals für den Durchgang des abzusaugenden Gesteinsstaubes.The invention eliminates these disadvantages by means of a special shape the inner bore of the bearing journal. According to the invention is that of the longitudinal axis direction the inner bore following the bearing journal over the curved transition from the longitudinal channel carried out to the inclined channel and ends in a preferably ball or hemispherical recess. Through this shape of the longitudinal channel are the .Material tensions, which as a result of the relatively large clear width, the Bore in the bearing journal, corrected without bare parts of other types in Purchase must be made. It can, of course, be the case that through the suctioned gresteins, b the ball-shaped or hemispherical canal perch Filled with rock dust: This process does not, however, lead to clogging of the suction channel, as the curved transition from the longitudinal channel to the inclined channel is basically preserved. The formation of the ball-shaped or hemispherical shape is particularly advantageous Channel extension for the compensation of material stresses when the The diameter of the canal process is smaller than the diameter of the longitudinal or Inclined channel for the passage of the rock dust to be extracted.
Die Zeichnung zeigt eine beispielsweise Ausführungsform des Erfindungsgegenstandes. Der Lagerzapfen @i, der den drehbaren Saugkopf io zwischen seinem Befestigungsflansch 2 und der auf dem Gewindebolzen 3 aufgeschraubten Verbindungsmuffe q. aufnimmt, ist mit einer der Achsenlängsrichtung des Lagerzapfens i folgenden Innenbohrung 8 versehen, die vorzugsveise bogenförmig in einen Schrägkanal 7 übergeht. Außerdem ist die Längsbohrung 8 über den bogenförmigen Übergang hinaus durchgeführt und endet in einer Vertiefung 12, die ballen- oder halbkugelförmig ausgebildet ist.The drawing shows an exemplary embodiment of the subject matter of the invention. The bearing pin @i, which holds the rotatable suction head io between its mounting flange 2 and the connecting sleeve q screwed onto the threaded bolt 3. records, is with one of the axial longitudinal direction of the bearing journal i following inner bore 8, which preferably merges into an inclined channel 7 in an arc shape. aside from that the longitudinal bore 8 is carried out beyond the arcuate transition and ends in a recess 12, which is ball-shaped or hemispherical.
Die Vertiefung 12 kann einen kleineren Durchmesser haben als der Längskanal 8 bzw. der Schrägkanal 7.The recess 12 can have a smaller diameter than the longitudinal channel 8 or the inclined channel 7.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH7555A DE901404C (en) | 1951-02-15 | 1951-02-15 | Suction head bearing for rock drilling machines, especially for coal mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH7555A DE901404C (en) | 1951-02-15 | 1951-02-15 | Suction head bearing for rock drilling machines, especially for coal mining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE901404C true DE901404C (en) | 1954-01-11 |
Family
ID=7145125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEH7555A Expired DE901404C (en) | 1951-02-15 | 1951-02-15 | Suction head bearing for rock drilling machines, especially for coal mining |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE901404C (en) |
-
1951
- 1951-02-15 DE DEH7555A patent/DE901404C/en not_active Expired
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