EP0771620B1 - Outil de forage et de burinage - Google Patents

Outil de forage et de burinage Download PDF

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Publication number
EP0771620B1
EP0771620B1 EP96810426A EP96810426A EP0771620B1 EP 0771620 B1 EP0771620 B1 EP 0771620B1 EP 96810426 A EP96810426 A EP 96810426A EP 96810426 A EP96810426 A EP 96810426A EP 0771620 B1 EP0771620 B1 EP 0771620B1
Authority
EP
European Patent Office
Prior art keywords
drilling
bearing
housing
intermediate shaft
drilling direction
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 - Lifetime
Application number
EP96810426A
Other languages
German (de)
English (en)
Other versions
EP0771620A1 (fr
Inventor
Josef Fünfer
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.)
Hilti AG
Original Assignee
Hilti AG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7776165&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0771620(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP0771620A1 publication Critical patent/EP0771620A1/fr
Application granted granted Critical
Publication of EP0771620B1 publication Critical patent/EP0771620B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools

Definitions

  • the invention relates to a drilling and / or chisel device in which a striking mechanism and Intermediate shaft are mounted axially parallel.
  • the subject of DE-AS 27 15 615 is an impact drill with an armature shaft having electric motor and an axially parallel to the armature shaft limited displaceable spindle.
  • One in the housing of the drilling and chiseling device arranged bearing plate made of sheet metal, has two bearing points. A first one Bearing is used to accommodate a bearing area pointing in the drilling direction Spindle and a second bearing is used to accommodate one of the drilling directions opposite bearing area of the armature shaft.
  • the end shield on its side pointing in the direction of drilling
  • the area of the spindle with catches, the one with counter-catches on the spindle interlocking arranged gear cooperate when this when pressing for hammer drilling over the spindle towards the end shield against the force of a spring is moved.
  • DE-OS 21 10 015 discloses an impact drill with a gear housing and one motor housing adjoining it against the drilling direction. Both housings are joined together with the help of an intermediate flange forming a bearing plate connected.
  • the intermediate flange consists of two sheet metal disks lying against each other, wherein a first sheet metal disk has a first bearing bush for a in the gearbox arranged drilling spindle and the second sheet metal disk a second bearing bush for one also arranged in the gear housing countershaft.
  • the spindle and the Layshafts are arranged axially parallel to each other.
  • DE-OS 35 06 695 discloses a drilling and chiseling device with a housing, which consists of a gear housing on the drilling direction and one of the drilling direction opposite motor housing. On the inside contour of the Gearbox housing is one at two opposite areas Bearing arranged. One of these bearings is used to hold one of the Direction of drilling opposite bearing area of the striking mechanism and the second The bearing point stands with one bearing area facing the drilling direction Intermediate shaft belonging to wobble gear in connection.
  • the housing of the drilling and chiseling device consists of two, parallel to the longitudinal extension of the drilling and chiseling device, which can be divided by means of screws Halves of the housing together.
  • the two bearings are in pairs arranged bearing shells formed in one piece with the housing halves in Connect.
  • the inner contour of these bearing shells is on the outer contour of the Bearing areas of the striking mechanism and the intermediate shaft coordinated.
  • the housing halves of the entire housing must be separated from one another be so that the inside of the gearbox is freely accessible.
  • the invention has for its object a drilling and / or chisel device with striking mechanism and to create an intermediate shaft arranged parallel to it, the extraordinary easy to assemble and economical to manufacture.
  • the striking mechanism and the intermediate shaft can be used as an assembly pre-assembled and in a one-piece gear housing, which on both free ends are designed to be used.
  • the gearbox is on Both free ends are open, the opposite of the drilling direction Opening can be larger than the opening facing the drilling direction, so that the Insert the assembly into the interior of the gearbox by the larger one Opening is possible.
  • the end shield expediently forms a bearing for a storage area opposite the drilling direction Impact mechanism and a bearing point for a bearing area facing the drilling direction the intermediate shaft.
  • the bearing points of the end shield are thus one above the other arranged, parallel to each other through openings formed.
  • the end shield is connected by means of at least one screw connection connected to the gearbox. This will make it quick and economical Determination and disassembly of the end shield inside the gearbox enables.
  • Bearing areas of the striking mechanism and the intermediate shaft heat which preferably is unhindered to the gear housing.
  • Such heat dissipation is associated with reached a bearing plate, which is expediently made of metal.
  • the drilling and chiseling device shown schematically in FIGS. 1 and 2 has a housing 1 with a handle 6 in an end region opposite the drilling direction of the housing 1, an operating switch 7 arranged in the handle 6, one of Handle 6 protruding electric cable 9 and a tool holder 10 in one of the drilling direction facing end region of the housing 1, in which a not shown Drill or chisel tool can be used.
  • the housing 1 is opposed to one the gear housing 2 connecting the drilling direction to the tool holder 10 and a motor housing 3 connected to the gear housing 2 together.
  • an electric drive motor 4 is arranged, which with the operating switch 7 can be switched on.
  • the drive motor 4 shown in Fig. 2 has a drive shaft 5 which by a arranged between the motor housing 3 and the gear housing 2 to the motor housing 3 belonging partition 11 protrudes and a bearing 12 on the Partition 11 supports.
  • a toothing 8 arranged on the drive shaft 5 acts form-fitting together with a drive pinion 13 of a wobble mechanism 14.
  • the wobble gear 14 is composed of an intermediate shaft designed as a wobble shaft 15 and one, a swash plate 16 having a swash plate 17 together.
  • This swash plate 17 is via balls 18 with respect to the intermediate shaft 15 rotatably supported in the circumferential direction.
  • the balls 18 are inclined to the longitudinal axis the intermediate shaft 15 running, circumferential grooves 19, 20, which both on the outer contour of the intermediate shaft 15, and on the inner contour a through hole of the swash plate 17 are arranged.
  • the intermediate shaft 15 has a raceway 19 and one with the drive shaft 5 of the drive motor 4th cooperating drive pinion 13.
  • the intermediate shaft 15 also has one, itself the first pinion region 21 adjoining the drive pinion 13 in the form of a bearing pin, which projects into a bearing bush 22 arranged in the intermediate wall 11.
  • An output pinion is located on a free end of the intermediate shaft 15 facing the drilling direction 23 arranged, which is connected to a tool spindle 24 in a rotationally fixed manner Pinion 25 interacts positively.
  • a second bearing region 26 is arranged, the is supported via a ball bearing 27 on a bearing plate 28.
  • the bearing plate 28 arranged in the gear housing 2 has two bearing points 29, 30 in the form of passage openings.
  • the ball bearing 27 is in a first bearing 29 of the end shield 28 axially fixed.
  • the second bearing 30 is used Recording and storage of a storage area opposite the drilling direction of the striking mechanism 31, or a tubular one which surrounds the striking mechanism 31 Tool spindle 24.
  • This tool spindle 24 is opposite the end shield 28 or opposite a plain bearing arranged at the second bearing point 30 33 and rotatable relative to the striking mechanism 31.
  • the striking mechanism 31 is composed of a cylinder 34 and one in the cylinder 34 axially displaceable percussion piston 35 together.
  • the cylinder 34 is in one of the drilling directions opposite end area closed.
  • a movement joint 36 arranged with a pivot pin 37 which is perpendicular to the longitudinal extent of the pivot pin 37 extending bore.
  • Engages in this hole the swash pin 16 of the swash plate 17 a longitudinally displaceable.
  • the cylinder 34 is secured against rotation with the Swivel pin 16 coupled.
  • the gear housing 2 has a drilling direction side and one opposite the drilling direction Opening, with the opening opposite the drilling direction is larger than the opening on the drilling direction.
  • the outer contour of the end shield 28 is essentially matched to the larger opening.
  • the tool spindle 24, the hammer mechanism 31, the intermediate shaft 15 and the end shield 28 can be assembled into an assembly and when assembling the drilling and / or chisel device can be inserted into the gear housing 2.
  • a not shown Bearing in the drilling direction area of the gear housing 2 takes the end region of the tool spindle 24 on the drilling direction.
  • Screws 38 which protrude through corresponding passages in the end shield 28 and in Tapped holes of the gear housing 2, not shown, are screwed in.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)

Claims (4)

  1. Outil de forage et/ou de burinage comprenant un carter de transmission (2) dans lequel sont montés un mécanisme de percussion (31) et un arbre intermédiaire (15) dont les axes sont parallèles, caractérisé en ce qu'un flasque-palier (28) servant à loger le mécanisme de percussion (31) et l'arbre intermédiaire (15) est monté à l'intérieur du carter de transmission (2) au moyen d'au moins une liaison vissée.
  2. Outil de forage et/ou de burinage selon la revendication 1, caractérisé en ce que le flasque-palier (28) forme un point d'appui (30) pour une zone de montage du mécanisme de percussion (31) orientée à l'opposé de la direction de forage.
  3. Outil de forage et/ou de burinage selon la revendication 1 ou 2, caractérisé en ce que le flasque-palier (28) forme un point d'appui (29) pour une zone de montage (26) de l'arbre intermédiaire (15) orientée dans la direction de forage.
  4. Outil de forage et/ou de burinage selon l'une des revendications 1 à 3, caractérisé en ce que le flasque-palier (28) est réalisé en métal.
EP96810426A 1995-10-30 1996-06-26 Outil de forage et de burinage Expired - Lifetime EP0771620B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19540391 1995-10-30
DE19540391A DE19540391A1 (de) 1995-10-30 1995-10-30 Bohr- und Meisselgerät

Publications (2)

Publication Number Publication Date
EP0771620A1 EP0771620A1 (fr) 1997-05-07
EP0771620B1 true EP0771620B1 (fr) 2000-03-22

Family

ID=7776165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810426A Expired - Lifetime EP0771620B1 (fr) 1995-10-30 1996-06-26 Outil de forage et de burinage

Country Status (5)

Country Link
US (1) US5732782A (fr)
EP (1) EP0771620B1 (fr)
JP (1) JPH09168978A (fr)
CN (1) CN1075411C (fr)
DE (2) DE19540391A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19955412A1 (de) * 1999-11-18 2001-05-23 Hilti Ag Bohr- und Meisselgerät
GB0125749D0 (en) * 2001-10-26 2001-12-19 Black & Decker Inc Power tool
DE10313782B4 (de) * 2003-03-20 2008-10-16 Robert Bosch Gmbh Elektrowerkzeug mit mehrteiligem Gehäuse
CN2920563Y (zh) * 2006-07-11 2007-07-11 王文江 轻型单钮四功能电锤
DE102007010181A1 (de) * 2007-03-02 2008-09-04 Robert Bosch Gmbh Handwerkzeugmaschine
DE102008040765A1 (de) * 2008-07-28 2010-02-04 Robert Bosch Gmbh Schlagvorrichtung
DE102009027560A1 (de) * 2009-07-09 2011-01-13 Robert Bosch Gmbh Bohrhammer- und/oder Meißelgerät
US8636081B2 (en) 2011-12-15 2014-01-28 Milwaukee Electric Tool Corporation Rotary hammer
DE202010012253U1 (de) * 2010-09-07 2010-11-18 Robert Bosch Gmbh Werkzeugmaschine, insbesondere Handwerkzeugmaschine
JP6378947B2 (ja) * 2014-06-26 2018-08-22 株式会社マキタ 電動工具
CN110125454B (zh) * 2019-06-17 2021-07-30 上海同叶应用技术发展中心 一种矿山开采勘测用机器人
DE102020212425A1 (de) 2020-10-01 2022-04-07 Robert Bosch Gesellschaft mit beschränkter Haftung Lagerflansch für ein Antriebssystem einer Handwerkzeugmaschine, sowie Bohrhammer mit einem Schlagwerk und einem Lagerflansch
CN114012646B (zh) * 2021-10-29 2023-07-25 合肥工业大学 一种摇摆传动双头双路紧固装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2449191C2 (de) * 1974-10-16 1988-03-24 Robert Bosch Gmbh, 7000 Stuttgart Hammer
DE2715615C2 (de) * 1977-04-07 1979-05-17 Metabowerke Kg, Closs, Rauch & Schnizler, 7440 Nuertingen Schlagbohrmaschine mit einem metallischen Lagerteil für die Spindel
DE3039669A1 (de) * 1980-10-21 1982-05-27 Robert Bosch Gmbh, 7000 Stuttgart Bohrhammer
DE3506695A1 (de) * 1985-02-26 1986-08-28 Robert Bosch Gmbh, 7000 Stuttgart Bohrhammer
DE4135240A1 (de) * 1991-10-25 1993-04-29 Bosch Gmbh Robert Bohrhammer
DE4340726C1 (de) * 1993-11-30 1995-01-26 Bosch Gmbh Robert Einrichtung an Handwerkzeugmaschinen zur Drehmitnahme von Werkzeugen
CN2200517Y (zh) * 1994-03-30 1995-06-14 范姜渭川 一种电动工具

Also Published As

Publication number Publication date
EP0771620A1 (fr) 1997-05-07
JPH09168978A (ja) 1997-06-30
CN1151921A (zh) 1997-06-18
DE19540391A1 (de) 1997-05-07
DE59604749D1 (de) 2000-04-27
US5732782A (en) 1998-03-31
CN1075411C (zh) 2001-11-28

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