DE2751506A1 - Rotary and impact drill ratchet mechanism - has ring with teeth sloping at 20 degrees and flanks at 45 degrees - Google Patents

Rotary and impact drill ratchet mechanism - has ring with teeth sloping at 20 degrees and flanks at 45 degrees

Info

Publication number
DE2751506A1
DE2751506A1 DE19772751506 DE2751506A DE2751506A1 DE 2751506 A1 DE2751506 A1 DE 2751506A1 DE 19772751506 DE19772751506 DE 19772751506 DE 2751506 A DE2751506 A DE 2751506A DE 2751506 A1 DE2751506 A1 DE 2751506A1
Authority
DE
Germany
Prior art keywords
degrees
ring
flanks
rotary
impact drill
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.)
Ceased
Application number
DE19772751506
Other languages
German (de)
Inventor
Erwin Dipl Ing Stiltz
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs 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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE19772751506 priority Critical patent/DE2751506A1/en
Publication of DE2751506A1 publication Critical patent/DE2751506A1/en
Ceased legal-status Critical Current

Links

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
    • E21B6/00—Drives for drilling with combined rotary and percussive action
    • E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Drilling Tools (AREA)

Abstract

The rotary and impact drill has a ratchet mechanism which includes a stopped sleeve (3) with a ring of ratchet teeth (2) at one end, on a face at right angles to its axis of rotation. This sleeve is designed for rotation in either direction. The contact face (4) of each tooth slopes at an angle of about 10 deg. to the vertical face, and the flank (1) slopes at an angle of 45 deg..

Description

Ratsche für Schlagbohrmaschinen Ratchet for impact drills

Die in Schlagbohrmaschinen üblicherweise verwendeten Ratschen weisen Zähne mit einer mit ca 3"0 geneigten Gleitflanke und einer im wesentlichen senkrechten Flanke auf. Dies hat zur Folge, daß die betreffende Maschine onne Schwierigkeiten nur in einer Drehrichtung betrieben werden kann, und zwar in derjenigen, für welche die Neigung der Ratschenzähne ausgelegt ist. In der entgegengesetzten Drehrichtung, beispielsweise bei Linkslauf, wird die Werkzeugxelle dagegen durch die nahezu senkrecht verlaufenden Ratschenflanken blockiert.The ratchets commonly used in impact drills have Teeth with a sliding flank inclined by approx. 3 "0 and an essentially vertical one Flank on. As a result, the machine concerned has difficulties can only be operated in one direction of rotation, namely in the one for which the inclination of the ratchet teeth is designed. In the opposite direction of rotation, for example with counter-clockwise rotation, the tool axis, on the other hand, is almost vertical due to the running ratchet flanks blocked.

Es ist Aufgabe der vorliegenden Erfindung, Ratschenscheiben für eine Schlagbohrmaschine zu schaffen, die einen Links-und Rechtslauf der Maschine problemlos ermöglichen.It is the object of the present invention to provide ratchet washers for a Impact drill to create a left and right rotation of the machine without problems enable.

Diese Aufgabe ist dadurch gelöst, daß die Ratschenzähne jeweils eine mit ca.200 geneigte Gleitflanke und eine mit ca.450 abgeschrägte Flanke aufweisen.This object is achieved in that the ratchet teeth each have one with about 200 inclined sliding flank and one with about 450 beveled flank.

Die Erfindung wird im nachstehenden anhand der Zeichnung erläutert.The invention is explained below with reference to the drawing.

Es zeigen: Fig. 1 einen Längsschnitt durch eine Ratsche, Fig. 2 eine Ansicht der Ratsche nach Fig. 1 in Richtung A, Fig. 3 eine Teilabwicklung am Außendurchmesser des Ratschenkranzes. They show: FIG. 1 a longitudinal section through a ratchet, FIG. 2 a View of the ratchet according to FIG. 1 in the direction A, FIG. 3 shows a partial development on the outer diameter of the ratchet ring.

Wie aus den Figuren ersichtlich ist, verlaufen die Flanken 1 des Ratschenkranzes 2 der Ratschenhülse 3 angenähert unter einem Winkel von 450, während die Neigung der Zahnflanken 4 der Ratschenznhne etwa 200 beträgt. Dadurch ist es ohne weiteres möglich, die betreffende Schlagbohrmaschine im Links- und Rechtslauf zu betreiben.As can be seen from the figures, the flanks 1 of the ratchet ring run 2 of the ratchet sleeve 3 approximated at an angle of 450, while the inclination the tooth flanks 4 of the ratchet teeth is about 200. This makes it easy possible to operate the impact drill in question in left and right rotation.

LeerseiteBlank page

Claims (1)

Patent an spruch Ratsche für Schlagbohrmaschinen, dadurch gekennzeichnet, daß die Ratschenzähne jeweils eine mit ca.20° geneigte Gleitflanke und eine mit ca.450 abgeschrägte Flanke aufweisen. Patent to claim ratchet for impact drills, characterized that the ratchet teeth each have a sliding flank inclined at about 20 ° and one with have about 450 beveled flanks.
DE19772751506 1977-11-18 1977-11-18 Rotary and impact drill ratchet mechanism - has ring with teeth sloping at 20 degrees and flanks at 45 degrees Ceased DE2751506A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772751506 DE2751506A1 (en) 1977-11-18 1977-11-18 Rotary and impact drill ratchet mechanism - has ring with teeth sloping at 20 degrees and flanks at 45 degrees

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772751506 DE2751506A1 (en) 1977-11-18 1977-11-18 Rotary and impact drill ratchet mechanism - has ring with teeth sloping at 20 degrees and flanks at 45 degrees

Publications (1)

Publication Number Publication Date
DE2751506A1 true DE2751506A1 (en) 1979-05-23

Family

ID=6024014

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772751506 Ceased DE2751506A1 (en) 1977-11-18 1977-11-18 Rotary and impact drill ratchet mechanism - has ring with teeth sloping at 20 degrees and flanks at 45 degrees

Country Status (1)

Country Link
DE (1) DE2751506A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006031565B4 (en) * 2005-07-08 2008-08-28 Hitachi Koki Co., Ltd. impact drill
US7717191B2 (en) 2007-11-21 2010-05-18 Black & Decker Inc. Multi-mode hammer drill with shift lock
US7717192B2 (en) 2007-11-21 2010-05-18 Black & Decker Inc. Multi-mode drill with mode collar
US7735575B2 (en) 2007-11-21 2010-06-15 Black & Decker Inc. Hammer drill with hard hammer support structure
US7762349B2 (en) 2007-11-21 2010-07-27 Black & Decker Inc. Multi-speed drill and transmission with low gear only clutch
US7770660B2 (en) 2007-11-21 2010-08-10 Black & Decker Inc. Mid-handle drill construction and assembly process
US7798245B2 (en) 2007-11-21 2010-09-21 Black & Decker Inc. Multi-mode drill with an electronic switching arrangement
US7854274B2 (en) 2007-11-21 2010-12-21 Black & Decker Inc. Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006031565B4 (en) * 2005-07-08 2008-08-28 Hitachi Koki Co., Ltd. impact drill
US8672049B2 (en) 2005-07-08 2014-03-18 Hitachi Koki Co., Ltd. Vibration drill unit
US7798245B2 (en) 2007-11-21 2010-09-21 Black & Decker Inc. Multi-mode drill with an electronic switching arrangement
US7735575B2 (en) 2007-11-21 2010-06-15 Black & Decker Inc. Hammer drill with hard hammer support structure
US7762349B2 (en) 2007-11-21 2010-07-27 Black & Decker Inc. Multi-speed drill and transmission with low gear only clutch
US7770660B2 (en) 2007-11-21 2010-08-10 Black & Decker Inc. Mid-handle drill construction and assembly process
US7717192B2 (en) 2007-11-21 2010-05-18 Black & Decker Inc. Multi-mode drill with mode collar
US7854274B2 (en) 2007-11-21 2010-12-21 Black & Decker Inc. Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing
US7987920B2 (en) 2007-11-21 2011-08-02 Black & Decker Inc. Multi-mode drill with mode collar
US8109343B2 (en) 2007-11-21 2012-02-07 Black & Decker Inc. Multi-mode drill with mode collar
US8292001B2 (en) 2007-11-21 2012-10-23 Black & Decker Inc. Multi-mode drill with an electronic switching arrangement
US8555998B2 (en) 2007-11-21 2013-10-15 Black & Decker Inc. Multi-mode drill with mode collar
US7717191B2 (en) 2007-11-21 2010-05-18 Black & Decker Inc. Multi-mode hammer drill with shift lock

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Legal Events

Date Code Title Description
OD Request for examination
8131 Rejection