DE10031334A1 - Sealing drill resistance testing equipment so that wood can be tested under water by generating internal pressure equal to measured outside pressure - Google Patents

Sealing drill resistance testing equipment so that wood can be tested under water by generating internal pressure equal to measured outside pressure

Info

Publication number
DE10031334A1
DE10031334A1 DE10031334A DE10031334A DE10031334A1 DE 10031334 A1 DE10031334 A1 DE 10031334A1 DE 10031334 A DE10031334 A DE 10031334A DE 10031334 A DE10031334 A DE 10031334A DE 10031334 A1 DE10031334 A1 DE 10031334A1
Authority
DE
Germany
Prior art keywords
drilling
drill
water
internal pressure
under water
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
Application number
DE10031334A
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German (de)
Other versions
DE10031334B4 (en
Inventor
Frank Rinn
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE10031334A priority Critical patent/DE10031334B4/en
Publication of DE10031334A1 publication Critical patent/DE10031334A1/en
Application granted granted Critical
Publication of DE10031334B4 publication Critical patent/DE10031334B4/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/223—Jaws in the form of cylindrical elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/0081—Conical drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C3/00—Drilling machines or drilling devices; Equipment therefor
    • B27C3/04—Stationary drilling machines with a plurality of working spindles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G15/00—Boring or turning tools; Augers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/58—Investigating machinability by cutting tools; Investigating the cutting ability of tools
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/46—Wood
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003—Generation of the force
    • G01N2203/0053—Cutting or drilling tools
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/022—Environment of the test
    • G01N2203/0236—Other environments
    • G01N2203/0242—With circulation of a fluid

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Drilling And Boring (AREA)
  • Gripping On Spindles (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling Tools (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The drill device has only one opening through which the drill tool can pass in and out while turning or when stationary. Inside the drill device, an increased gas pressure is generated which corresponds to the measured outside pressure, so that no water can penetrate inside. The opening is sealed by a combination of O-rings, plastics or metal rings.

Description

Bohrwiderstandsmessungen mit dünnen Bohrwerkzeugen oder Bohrnadeln werden seit vielen Jahren beispielsweise an Bäumen und Bauwerken angewendet. Ein Antrieb dreht und schiebt das Bohrwerkzeug aus einem Bohrgerät in das zu untersuchende Material, zum Beispiel einen Baum oder Holz. Gemessen und aufgezeichnet werden dabei beispielsweise der Leistungs- bzw. Stromverbrauch des Bohrwerkzeugantriebes beim Eindringen und/oder Herausziehen als Maß für den Bohrwiderstand und damit als Parameter zur Kennzeichnung und Bewertung von Materialeigenschaften des Prüflings.Drilling resistance measurements with thin drilling tools or drilling needles have been used for many Years, for example, applied to trees and structures. One drive turns and pushes the drilling tool from a drilling device into the material to be examined Example a tree or wood. For example, measurements and recordings are made the power or current consumption of the drilling tool drive when penetrating and / or Pull out as a measure of the drilling resistance and thus as a parameter for identification and evaluation of material properties of the test object.

Weltweit gibt es interessante Anwendungen, die den bisherigen Vorrichtungen verschlossen waren: Messungen im strömenden Regen, beispielsweise in tropischen Wäldern, oder Prüfungen von beispielsweise hölzernen Brückenfundamenten unter Wasser. Hierzu muß das Bohrgerät wasserdicht sein, was bislang nicht gelang.There are interesting applications worldwide that closed the previous devices were: measurements in the pouring rain, for example in tropical forests, or Testing of, for example, wooden bridge foundations under water. To do this the drill must be watertight, which has not been possible so far.

Dichtungen für rein drehende Wellen sind bekannt und seit langem üblich. Schiffsantriebe können z. B. an ihren in das Wasser reichenden Wellen mittels O-Ringen oder ähnlichen Mitteln gegen Wassereintritt abgedichtet werden. Im vorliegenden Falle der Bohrwiderstandsmessungen jedoch bewegt sich die (mitunter auch sehr schnell) rotierende Welle (Bohrer oder Bohrnadel) mit nicht unerheblicher Geschwindigkeit (z. B. 1 m/min) durch die Austrittsöffnung des Bohrgerätes (z. B. Messing-Buchse mit Filzpolster) hinaus und wieder zurück. Erfolgt diese Bewegung im Wasser, versagen die üblichen Dichtungen (z. B. O-Ringe) aufgrund der Kombination von hoher Drehzahl sowie gleichzeitiger translatorischer Bewegung des Bohrwerkzeuges.Seals for purely rotating shafts are known and have been common for a long time. Marine propulsion can e.g. B. on their waves reaching into the water by means of O-rings or the like Means to be sealed against water ingress. In the present case the Drilling resistance measurements, however, the rotating (sometimes very quickly) rotating Shaft (drill or drilling needle) at a not inconsiderable speed (e.g. 1 m / min) the outlet opening of the drill (e.g. brass socket with felt pad) and back again. If this movement takes place in the water, the usual seals (e.g. O-rings) due to the combination of high speed and simultaneous translational Movement of the drilling tool.

Außerdem wird ja gerade der mechanische Bohr- bzw. Dreh- oder Auszugswiderstand z. B. über die Leistung des Antriebes, über das Drehmoment oder über Druck- bzw. Zugkräfte gemessen. An der Bohrnadel stark reibende Dichtungen (um Wassereintritt zu verhindern) würden hier das Meßergebnis verfälschen oder gar die Meßmethodik unmöglich machen. Also darf die Dichtung gegen Wassereintritt entweder keinen nennenswerten oder zumindest nur einen sehr geringen, im Vergleich zum Meßwert (Bohrwiderstand) vernachlässigbar kleinen, zeitlich konstanten und von der Drehzahl unabhängigen Reibungsanteil beisteuern. Derartige Dichtungen sind auf herkömmlichem Wege nicht verfügbar.In addition, just the mechanical drilling or turning or pull-out resistance z. B. about the power of the drive, about the torque or about pressure or tensile forces measured. Strongly rubbing seals on the drilling needle (to prevent water ingress) would falsify the measurement result or even make the measurement methodology impossible. So the seal against water ingress must either not be any or at least only a very small one compared to the measured value (drilling resistance) negligibly small, constant in time and independent of the speed Contribute friction. Such seals are not conventional available.

Zur Lösung dieses Problems werden in einer speziellen Ausführung der erfindungsgemäßen Vorrichtung übliche Dichtungskombinationen, z. B. Messing, Gummi- und Kunststoff-Ringe sowie Filzpolster in der stirnseitigen Austrittsöffnung eingesetzt. Diese Dichtungen sitzen relativ locker um die Bohrnadel, so daß sie kaum nennenswerte Reibung erzeugen. Eine Schmierung erfolgt über wasserabweisende bzw wasserbeständige Schmiermittel, die mittlerweile handelsüblich sind, vorzugsweise z. B. zwischen mehreren O-Ringen.To solve this problem are in a special embodiment of the invention Device usual seal combinations, e.g. B. brass, rubber and plastic rings as well as felt pads in the front opening. These seals are in place relatively loose around the drilling needle, so that they hardly generate any appreciable friction. A  Lubrication is carried out using water-repellent or water-resistant lubricants are now commercially available, preferably z. B. between several O-rings.

Das erfindungsgemäß neue Bohrgerät wird ansonsten luftdicht gefertigt, d. h. alle Stecker bzw. Anschlüsse und Bedienelemente sind wasserdicht.The new drilling device according to the invention is otherwise made airtight, d. H. all plugs or connections and controls are watertight.

Die einzige Öffnung des Gerätes, durch die Luft oder Wasser in das Innere eintreten können, ist damit die Austrittsöffnung der Bohrwerkzeuge. Damit durch diese Öffnung beim Bohren kein Wasser eintritt, wird im Inneren des Bohrgerätes ein erhöhter Innendruck aufgebaut. Dazu kann Luft, ein Gas oder ein Gasgemisch verwendet werden (im nachfolgenden vereinfacht nur "Luft"). Die Luft kann dann, wenn überhaupt, nur neben der Bohrnadel aus dem Bohrgerät austreten, je nach Druckverhältnissen zwischen Innen und Außen. Wird das Bohrgerät unter Wasser verwendet, kann der Luftdruck der jeweiligen Wassertiefe entsprechend angepaßt werden, um Wassereintritt entlang der Bohrnadel an der Geräteaustrittsöffnung zu verhindern. Um möglichst lange Tauchzeiten zu ermöglichen, wird der innere Überdruck gerade so eingestellt, dass er ausreicht, Wassereintritt zu verhindern. Die Druckluft im Bohrgerät kann z. B. aus einer dort angebrachten Gaskartusche (z. B. mit CO2 oder Druckluft) kommen oder über einen entsprechenden Schlauch eingeblasen werden.The only opening of the device through which air or water can enter the interior is the outlet opening of the drilling tools. So through this opening at If no water is drilled, there is an increased internal pressure inside the drill built up. Air, a gas or a gas mixture can be used (in subsequent simplified only "air"). The air can, if at all, only next to the Exit the drilling needle from the drilling machine, depending on the pressure conditions between inside and Outside. If the drill is used under water, the air pressure of the respective Water depth can be adjusted accordingly to prevent water ingress along the drilling needle to prevent the device outlet opening. In order to enable the longest possible diving times, the internal overpressure is adjusted so that it is sufficient to prevent water from entering prevent. The compressed air in the drill can, for. B. from a gas cartridge attached there (e.g. with CO2 or compressed air) or via an appropriate hose be blown in.

Wenn das Gerät mit einer Kabelverbindung zum Akkupack versehen ist, kann die Druckluftversorgung parallel hierzu erfolgen. Sind die Versorgungs-Akkus im Bohrgerät integriert oder angeflanscht, kann gleiches mit einer Gas-Kartusche erfolgen.If the device has a cable connection to the battery pack, the Compressed air supply is carried out in parallel. Are the supply batteries in the drill integrated or flanged, the same can be done with a gas cartridge.

Claims (6)

1. Verfahren und Vorrichtung zur Abdichtung von Bohrwiderstandsmeßgeräten zur Materialprüfung insbesondere für Hölzer unter Wasser, dadurch gekennzeichnet, dass das Bohrgerät nur eine Öffnung aufweist, durch die das Bohrwerkzeug drehend oder stehend ein- und ausfährt sowie dadurch, dass im Inneren des Bohrgerätes ein erhöhter Gas-Innendruck aufgebaut wird, der dem gleichzeitig gemessenen Außendruck, vorzugsweise durch Wasser, so entspricht, dass kein Wasser eintreten kann.1. A method and device for sealing drilling resistance measuring devices for material testing, in particular for wood under water, characterized in that the drilling device has only one opening through which the drilling tool moves in and out in a rotating or standing manner, and in that an increased gas inside the drilling device Internal pressure is built up, which corresponds to the external pressure measured at the same time, preferably by water, so that no water can enter. 2. Verfahren und Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass sich um das Bohrwerkzeug im Bereich der Austrittsöffnung des Bohrgerätes eine Kombination von O-Ringen, Kunststoff- und/oder Metall-Ringen zur Abdichtung befinden.2. The method and device according to claim 1, characterized in that the drilling tool in the area of the outlet opening of the drilling device Combination of O-rings, plastic and / or metal rings for sealing are located. 3. Verfahren und Vorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, dass sich zwischen verschiedenen Dichtringen um das Bohrwerkzeug im Bereich der Austrittsöffnung des Bohrgerätes wasserabweisende Schmierstoffe befinden.3. The method and device according to claim 1 and 2, characterized in that between different sealing rings around the drilling tool in the area of There are water-repellent lubricants in the drill outlet. 4. Verfahren und Vorrichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass der erhöhte Innendruck im Bohrgerät über eine mit ihm verbundene Versorgungsleitung erfolgt.4. The method and device according to claim 1 to 3, characterized in that the increased internal pressure in the drill via a supply line connected to it he follows. 5. Verfahren und Vorrichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass der erhöhte Innendruck im Bohrgerät aus einer im Bohrgerät oder an ihm angeflanschten Reservoir erfolgt.5. The method and device according to claim 1 to 3, characterized in that the increased internal pressure in the drill from a flange in or on the drill Reservoir is done. 6. Verfahren und Vorrichtung nach Anspruch 1 bis 6, dadurch gekennzeichnet, dass der Auftrieb des Bohrgerätes unter Wasser durch Gegengewichts ausgeglichen wird.6. The method and device according to claim 1 to 6, characterized in that the Buoyancy of the drill under water is counterbalanced.
DE10031334A 1999-07-01 2000-07-03 Method and device for sealing Bohrwiderstandsmeßgeräten for material testing, especially for wood under water Expired - Fee Related DE10031334B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10031334A DE10031334B4 (en) 1999-07-01 2000-07-03 Method and device for sealing Bohrwiderstandsmeßgeräten for material testing, especially for wood under water

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19930137 1999-07-01
DE19930137.9 1999-07-01
DE10031334A DE10031334B4 (en) 1999-07-01 2000-07-03 Method and device for sealing Bohrwiderstandsmeßgeräten for material testing, especially for wood under water

Publications (2)

Publication Number Publication Date
DE10031334A1 true DE10031334A1 (en) 2001-01-18
DE10031334B4 DE10031334B4 (en) 2013-08-22

Family

ID=7913166

Family Applications (7)

Application Number Title Priority Date Filing Date
DE10031338A Withdrawn DE10031338A1 (en) 1999-07-01 2000-07-03 Drill tool for material testing by measuring insertion and extraction resistance has conical tip at end of needle shaft
DE10031333A Withdrawn DE10031333A1 (en) 1999-07-01 2000-07-03 Method and device for testing materials through penetration and separation resistance measurement uses a spindle stroke gearing mechanism with a spindle and a variable-speed motor drawing itself along the spindle.
DE10031395A Withdrawn DE10031395A1 (en) 1999-07-01 2000-07-03 Device to test materials, e.g. trees and woods; has special cup-telescope boring device, with at least one motor for rotating and thrusting borer tool and display and recording unit
DE10031339A Withdrawn DE10031339A1 (en) 1999-07-01 2000-07-03 Chucked drilling tool locator comprises larger diameter rollers placed in chuck cylinder to bear increasingly on centraly positioned drill tool as chuck speed increases.
DE10031334A Expired - Fee Related DE10031334B4 (en) 1999-07-01 2000-07-03 Method and device for sealing Bohrwiderstandsmeßgeräten for material testing, especially for wood under water
DE10031336A Ceased DE10031336A1 (en) 1999-07-01 2000-07-03 Material testing device for determining internal condition and density of wood using drilling resistance measurement e.g. with three parallel drill drives
DE10031394A Withdrawn DE10031394A1 (en) 1999-07-01 2000-07-03 Automatic fixing device for rotating drilling tools, with threaded bolt having central boring of same diameter as shaft of tool to be fixed

Family Applications Before (4)

Application Number Title Priority Date Filing Date
DE10031338A Withdrawn DE10031338A1 (en) 1999-07-01 2000-07-03 Drill tool for material testing by measuring insertion and extraction resistance has conical tip at end of needle shaft
DE10031333A Withdrawn DE10031333A1 (en) 1999-07-01 2000-07-03 Method and device for testing materials through penetration and separation resistance measurement uses a spindle stroke gearing mechanism with a spindle and a variable-speed motor drawing itself along the spindle.
DE10031395A Withdrawn DE10031395A1 (en) 1999-07-01 2000-07-03 Device to test materials, e.g. trees and woods; has special cup-telescope boring device, with at least one motor for rotating and thrusting borer tool and display and recording unit
DE10031339A Withdrawn DE10031339A1 (en) 1999-07-01 2000-07-03 Chucked drilling tool locator comprises larger diameter rollers placed in chuck cylinder to bear increasingly on centraly positioned drill tool as chuck speed increases.

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE10031336A Ceased DE10031336A1 (en) 1999-07-01 2000-07-03 Material testing device for determining internal condition and density of wood using drilling resistance measurement e.g. with three parallel drill drives
DE10031394A Withdrawn DE10031394A1 (en) 1999-07-01 2000-07-03 Automatic fixing device for rotating drilling tools, with threaded bolt having central boring of same diameter as shaft of tool to be fixed

Country Status (1)

Country Link
DE (7) DE10031338A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104502546A (en) * 2015-01-13 2015-04-08 六盘水师范学院 Experimental device and method for detecting sealing performance of sealing material of gas drainage drilling hole
DE202015106936U1 (en) 2014-12-19 2016-01-21 Joachim Wießner Apparatus for examining a wooden body, in particular under water, for infestation with wood pests
WO2016041617A1 (en) * 2014-09-16 2016-03-24 Iml Instrumenta Mechanik Labor Gmbh Drilling-resistance measuring device for use underwater
DE102015109902A1 (en) 2014-12-19 2016-06-23 Joachim Wießner Method for examining a wooden body, in particular under water, for infestation with wood pests

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DE102009013069B4 (en) 2008-08-13 2010-10-21 Iml Instrumenta Mechanik Labor Gmbh Method and device for examining the texture of columnar or cylindrical sections of bodies
DE102010018249A1 (en) 2010-04-23 2011-10-27 Iml Instrumenta Mechanik Labor Gmbh Hand tester and hand test method for the condition of wood
CN101947797B (en) * 2010-08-24 2012-11-14 肇庆市志成气动有限公司 Pneumatic feeding drilling power head
RU2465567C1 (en) * 2011-02-14 2012-10-27 Александр Викторович Леванов Method for determining material strength, and device for its implementation
DE102011103636B4 (en) 2011-06-08 2018-09-13 Iml Instrumenta Mechanik Labor Gmbh Drilling gauge and needle changer cartridge
DE102011082822B4 (en) * 2011-09-16 2013-04-18 Hilti Aktiengesellschaft Method for determining the strength of materials
GB2499437B (en) * 2012-02-17 2015-12-09 United Technologists Europe Ltd Method and device for monitoring integrity of wooden posts
EP2708868A1 (en) * 2012-09-14 2014-03-19 Metso Paper Inc. Device, method and system for taking a wood sample from a load of wood logs while on a vehicle
DE102013015131B3 (en) 2013-09-13 2015-01-08 Iml Instrumenta Mechanik Labor Gmbh Drilling needle chuck assembly
RU2607064C2 (en) * 2014-10-09 2017-01-10 Общество с ограниченной ответственностью "Новые лесные технологии" Device for measuring of analyzed material resistance to drilling
CN105665775A (en) * 2016-03-07 2016-06-15 安庆市德创机电产品设计有限公司 Multifunctional combined drilling device
DE102016011776B3 (en) 2016-10-04 2018-04-05 Iml Instrumenta Mechanik Labor Gmbh Needle guiding device for a drilling resistance measuring device, drilling resistance measuring device and drilling resistance measuring method for the condition examination of wood
CN107234677A (en) * 2017-06-12 2017-10-10 无锡市宏泰机械有限公司 A kind of boojum tree deep hole rig
DE102017007725B3 (en) 2017-08-17 2019-01-10 Iml Instrumenta Mechanik Labor Gmbh Turning attachment for a drilling rig, drilling device and retrofit kit, as well as procedures for drilling holes in hard to reach areas
DE202021103038U1 (en) 2021-06-04 2021-07-23 IML Instrumenta Mechanik-Labor GmbH Drilling needle, drilling resistance measuring device and its use for examining wood quality

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DE1189036B (en) * 1962-03-31 1965-03-18 Dipl Berging Albrecht Graefer Sealing for drilling heads on drilling machines
DE2152951C3 (en) * 1971-10-23 1981-08-13 SIG Schweizerische Industrie-Gesellschaft, 8212 Neuhausen am Rheinfall Device for discharging the chips on a drilling machine, in particular deep hole drilling machine
FR2274396A1 (en) * 1974-06-14 1976-01-09 Peugeot & Renault PNEUMATIC CONTROL DEVICE FOR THE END OF OPERATION OF A MACHINE SPINDLE
DE4122494B4 (en) * 1990-09-03 2004-03-11 Rinn, Frank, Dipl.-Phys. Device for material testing, especially wood testing by drilling or penetration resistance measurement

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016041617A1 (en) * 2014-09-16 2016-03-24 Iml Instrumenta Mechanik Labor Gmbh Drilling-resistance measuring device for use underwater
US9891151B2 (en) 2014-09-16 2018-02-13 Iml Instrumenta Mechanik Labor Gmbh Drilling-resistance measuring device for use underwater
DE102014013412B4 (en) 2014-09-16 2018-03-29 Iml Instrumenta Mechanik Labor Gmbh Drilling resistance meter for underwater use
DE202015106936U1 (en) 2014-12-19 2016-01-21 Joachim Wießner Apparatus for examining a wooden body, in particular under water, for infestation with wood pests
DE202015106936U9 (en) 2014-12-19 2016-05-25 Joachim Wießner Apparatus for examining a wooden body, in particular under water, for infestation with wood pests
EP3035051A1 (en) 2014-12-19 2016-06-22 Wießner, Joachim Method for examining a wood body, in particular one under water,for infestation with wood pests
DE102015109902A1 (en) 2014-12-19 2016-06-23 Joachim Wießner Method for examining a wooden body, in particular under water, for infestation with wood pests
CN104502546A (en) * 2015-01-13 2015-04-08 六盘水师范学院 Experimental device and method for detecting sealing performance of sealing material of gas drainage drilling hole

Also Published As

Publication number Publication date
DE10031333A1 (en) 2001-01-18
DE10031339A1 (en) 2001-02-08
DE10031336A1 (en) 2001-01-18
DE10031334B4 (en) 2013-08-22
DE10031394A1 (en) 2001-01-04
DE10031395A1 (en) 2001-04-26
DE10031338A1 (en) 2001-01-18

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