EP1358969A2 - Protection contre les surcharges pour machine-outil tournant - Google Patents

Protection contre les surcharges pour machine-outil tournant Download PDF

Info

Publication number: EP1358969A2
Authority: EP; European Patent Office
Prior art keywords: clutch; overload; coupling; control electronics; overload protection
Prior art date: 2002-05-02
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

EP03405287A

Other languages

German (de)

English (en)

Other versions

EP1358969B1 (fr

EP1358969A3 (fr

Inventor

Oliver Koslowski

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.)

2002-05-02

Filing date

2003-04-23

Publication date

2003-11-05

2003-04-23 Application filed by Hilti AG filed Critical Hilti AG

2003-11-05 Publication of EP1358969A2 publication Critical patent/EP1358969A2/fr

2006-08-02 Publication of EP1358969A3 publication Critical patent/EP1358969A3/fr

2008-04-16 Application granted granted Critical

2008-04-16 Publication of EP1358969B1 publication Critical patent/EP1358969B1/fr

2023-04-23 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools

Definitions

the invention relates to overload protection for a rotating machine tool, especially for a portable core drilling machine for concrete.
the torque that occurs in a handheld power tool recorded by control electronics and, if necessary, the drive train via a Magnetic coupling separated from the electric motor.
the object of the invention is to realize a space-saving, for high Contact forces and torques dimensioned overload protection for a portable, rotating machine tool.
the overload clutch is advantageous as a pre-tensioned, friction-locked ratchet clutch trained, further advantageous with axially displaceable by a coupling path in the event of overload Coupling parts, which enables a compact design.
the clutch sensor is advantageous as a further advantageous contactless displacement sensor trained, which is available as standard.
the magnetic coil of the magnetic coupling is advantageous for generating the bias voltage Ratchet clutch formed by at least one component of this generated magnetic coupling force acts along the coupling path of the ratchet clutch, whereby no separate spring means are required for the ratchet clutch and the Bias is controllable by the control electronics.
the ratchet clutch advantageously has static friction surfaces that run obliquely to the axial surface on, whereby with a given pre-tension mediates the static friction Limit torque can be increased compared to a flat axial surface.
the circumferential angle of inclination of the static friction surfaces relative to the axial surface is advantageous between 20 ° and 50 °, further advantageously about 35 °, whereby the limit torque to about can be increased four times compared to a flat axial surface.
the driving magnetic coupling part advantageously forms with the driven one Magnetic coupling part as well as the coupling parts of the ratchet coupling, whereby the Ratchet clutch is formed by the magnetic clutch.
control electronics are advantageous in the event of a disconnection or after a time limit Disconnection of the electric motor from the power supply reset, whereby then when the electric motor is restarted, the work string through the Magnetic clutch is initially closed.
overload protection has a portable machine tool one in the drive train between an electric motor 1 and one via a transmission 2 at least partially rotating tool holder 3 with a core drill bit 4 arranged magnetic coupling 5, which is connected to control electronics 6, the in the event of a torque-dependent overload, the drive train via the magnetic coupling 5 up to a reset.
the drive train is an automatic one torque-dependent overload clutch 7 available, the overload Driveline disconnecting clutch state from a non-contact Clutch sensor 8 is detectable.
the overload clutch 7 is a biased frictionally engaged ratchet clutch, which is overloaded by a Torque M has a coupling path X axially displaceable coupling parts 7a, 7b.
the magnetic coil 9 of the magnetic coupling 5 generates a magnetic coupling force F along the Coupling path X of the ratchet coupling, which forms the preload.
the Ratchet coupling points to the axial surface at an angle of inclination ⁇ of 35 ° Static friction surfaces 10.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Percussive Tools And Related Accessories (AREA)
Force Measurement Appropriate To Specific Purposes (AREA)
Protection Of Generators And Motors (AREA)
Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Auxiliary Devices For Machine Tools (AREA)

EP03405287A 2002-05-02 2003-04-23 Protection contre les surcharges pour machine-outil tournant Expired - Lifetime EP1358969B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE10219755A DE10219755A1 (de)	2002-05-02	2002-05-02	Überlastschutz für eine drehende Werkzeugmaschine
DE10219755		2002-05-02

Publications (3)

Publication Number	Publication Date
EP1358969A2 true EP1358969A2 (fr)	2003-11-05
EP1358969A3 EP1358969A3 (fr)	2006-08-02
EP1358969B1 EP1358969B1 (fr)	2008-04-16

Family

ID=28798983

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP03405287A Expired - Lifetime EP1358969B1 (fr)	2002-05-02	2003-04-23	Protection contre les surcharges pour machine-outil tournant

Country Status (5)

Country	Link
US (1)	US6863165B2 (fr)
EP (1)	EP1358969B1 (fr)
AT (1)	ATE392296T1 (fr)
DE (2)	DE10219755A1 (fr)
ES (1)	ES2301777T3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2007101686A1 (fr) *	2006-03-09	2007-09-13	Deprag Schulz Gmbh U. Co	Dispositif d'accouplement et outil rotatif motorisé
EP2096330A1 (fr) *	2006-12-21	2009-09-02	Positec Power Tools (Suzhou) Co., Ltd.	Outil électrique
EP2447010A1 (fr) *	2010-10-28	2012-05-02	HILTI Aktiengesellschaft	Procédé de commande pour une machine-outil et machine-outil
EP2517839A3 (fr) *	2011-04-27	2013-12-04	HILTI Aktiengesellschaft	Machine-outil et procédé de commande
EP2777880A3 (fr) *	2013-03-13	2015-04-08	Panasonic Intellectual Property Management Co., Ltd.	Outil électrique
CN108415366B (zh) *	2018-03-05	2021-01-29	高邑县云发专用机床厂	基于伺服技术的切削深度反馈方法及智能切削方法及***

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10309012B3 (de) *	2003-03-01	2004-08-12	Hilti Ag	Steuerverfahren einer axial schlagenden und drehenden Elektrohandwerkzeugmaschine
DE102005010129A1 (de) *	2004-03-05	2005-09-15	Marquardt Gmbh	Elektrische Schaltungsanordnung für ein Elektrowerkzeug
EP1690638A1 (fr) *	2005-02-09	2006-08-16	BLACK & DECKER INC.	Train d'engrenage d'un outil motorisé et couple d'embrayage à surcharge pour celui-ci
JP4742613B2 (ja) *	2005-02-24	2011-08-10	マックス株式会社	ドリル工具
DE102005037254A1 (de) *	2005-08-08	2007-02-15	Robert Bosch Gmbh	Elektrowerkzeugmaschine sowie Überlastschutzvorrichtung
DE102007000524A1 (de) *	2007-10-18	2009-04-23	Hilti Aktiengesellschaft	Elektrohandwerkzeugmaschine mit Motortemperaturkontrolle
SE532395C2 (sv) *	2008-05-08	2010-01-12	Atlas Copco Tools Ab	Kraftverktyg för åtdragning av skruvförband samt frikoppling
US8276280B2 (en) *	2008-09-16	2012-10-02	Republic Of Korea (Management: Rural Development Administration)	Electromotion trim scissors
DE102008050670B4 (de) *	2008-10-08	2020-03-12	Chr. Mayr Gmbh + Co Kg	Überlastkupplung mit Messeinheit und drahtloser Kommunikation
JP5537055B2 (ja)	2009-03-24	2014-07-02	株式会社マキタ	電動工具
JP5534783B2 (ja) *	2009-11-10	2014-07-02	株式会社マキタ	電動工具
CN102770248B (zh) *	2010-03-31	2015-11-25	日立工机株式会社	电动工具
DE112013006084A5 (de) *	2012-12-19	2015-08-27	Schaeffler Technologies AG & Co. KG	Entkoppler zur Dämpfung einer Drehmomentübertragung zwischen einer Antriebswelle eines Kraftfahrzeugs und einer Riemenscheibe
EP3023200A1 (fr) *	2014-11-20	2016-05-25	HILTI Aktiengesellschaft	Procédé de commande d'une perceuse
EP3112087A1 (fr) *	2015-06-30	2017-01-04	HILTI Aktiengesellschaft	Machine-outil portative a couplage de securite
EP3391491B1 (fr)	2015-12-14	2020-08-12	Milwaukee Electric Tool Corporation	Détection de surcharge dans un outil électrique
CN107442797B (zh) *	2017-03-17	2018-12-21	涡阳凯达机械制造有限公司	一种钻孔机
CN108352796B (zh) *	2017-06-30	2022-04-01	深圳和而泰智能控制股份有限公司	电子离合器及电动工具
US11529725B2 (en)	2017-10-20	2022-12-20	Milwaukee Electric Tool Corporation	Power tool including electromagnetic clutch
US10981267B2 (en)	2017-10-26	2021-04-20	Milwaukee Electric Tool Corporation	Kickback control methods for power tools
WO2020083449A1 (fr) *	2018-10-25	2020-04-30	Linak A/S	Système d'actionneur
US10654695B1 (en) *	2018-11-21	2020-05-19	Goodrich Corporation	Clutch assembly for detecting and measuring slip using proximity sensors
EP3756823A1 (fr) *	2019-06-27	2020-12-30	Hilti Aktiengesellschaft	Procédé de détection d'un état d'une machine-outil ainsi que machine-outil
US11641102B2 (en)	2020-03-10	2023-05-02	Smart Wires Inc.	Modular FACTS devices with external fault current protection within the same impedance injection module
CN114453619B (zh) *	2022-01-07	2023-02-28	上海工程技术大学	一种用于保护钻头的装置
CN114850535B (zh) *	2022-03-21	2023-07-04	上海工程技术大学	一种测振动实现磁动调节的钻头保护装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3240304A (en) *	1963-08-23	1966-03-15	Bendix Corp	Magnetic overload clutch device
DE3128410A1 (de) *	1981-07-17	1983-02-03	Hilti AG, 9494 Schaan	Bewertungsschaltung fuer ein elektrisches drehmomentsignal an einer bohrmaschine
US4776406A (en) *	1985-11-19	1988-10-11	Robert Bosch Gmbh	Motor-driven hand tool for drilling or impact drilling operations
DE4119941A1 (de) *	1991-06-17	1993-01-07	Frischmuth & Freitag Diamant U	Verfahren und anordnung zum schutz eines elektrischen antriebsmotors eines elektrowerkzeugs

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2351240C3 (de) *	1973-10-12	1981-06-19	Robert Bosch Gmbh, 7000 Stuttgart	Überlastkupplung
US4257147A (en) *	1979-04-17	1981-03-24	White Consolidated Industries, Inc.	Overload clutch for the feed roll of a carding machine
DE2921032C2 (de) *	1979-05-23	1981-09-17	Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen	Vorrichtung zum Überwachen des Schaltzustandes einer schaltbaren Kupplung
NL9101335A (nl) *	1991-08-02	1993-03-01	Emerson Electric Co	Transmissie voor elektrisch aangedreven gereedschap.
DE4344849A1 (de) *	1993-12-29	1995-07-06	Fein C & E	Werkzeugmaschine

2002
- 2002-05-02 DE DE10219755A patent/DE10219755A1/de not_active Withdrawn
2003
- 2003-04-23 ES ES03405287T patent/ES2301777T3/es not_active Expired - Lifetime
- 2003-04-23 EP EP03405287A patent/EP1358969B1/fr not_active Expired - Lifetime
- 2003-04-23 DE DE50309612T patent/DE50309612D1/de not_active Expired - Lifetime
- 2003-04-23 AT AT03405287T patent/ATE392296T1/de active
- 2003-04-28 US US10/424,316 patent/US6863165B2/en not_active Expired - Lifetime

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3240304A (en) *	1963-08-23	1966-03-15	Bendix Corp	Magnetic overload clutch device
DE3128410A1 (de) *	1981-07-17	1983-02-03	Hilti AG, 9494 Schaan	Bewertungsschaltung fuer ein elektrisches drehmomentsignal an einer bohrmaschine
US4776406A (en) *	1985-11-19	1988-10-11	Robert Bosch Gmbh	Motor-driven hand tool for drilling or impact drilling operations
DE4119941A1 (de) *	1991-06-17	1993-01-07	Frischmuth & Freitag Diamant U	Verfahren und anordnung zum schutz eines elektrischen antriebsmotors eines elektrowerkzeugs

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2007101686A1 (fr) *	2006-03-09	2007-09-13	Deprag Schulz Gmbh U. Co	Dispositif d'accouplement et outil rotatif motorisé
EP2096330A1 (fr) *	2006-12-21	2009-09-02	Positec Power Tools (Suzhou) Co., Ltd.	Outil électrique
EP2096330A4 (fr) *	2006-12-21	2013-04-24	Positec Power Tools Suzhou Co	Outil électrique
EP2447010A1 (fr) *	2010-10-28	2012-05-02	HILTI Aktiengesellschaft	Procédé de commande pour une machine-outil et machine-outil
CN102528770A (zh) *	2010-10-28	2012-07-04	喜利得股份公司	用于工具设备的控制方法和工具设备
US8833484B2 (en)	2010-10-28	2014-09-16	Hilti Aktiengesellschaft	Control method for a power tool and a power tool
EP2517839A3 (fr) *	2011-04-27	2013-12-04	HILTI Aktiengesellschaft	Machine-outil et procédé de commande
US9126321B2 (en)	2011-04-27	2015-09-08	Hilti Aktiengesellschaft	Machine tool and control procedure
EP2777880A3 (fr) *	2013-03-13	2015-04-08	Panasonic Intellectual Property Management Co., Ltd.	Outil électrique
US9452520B2 (en)	2013-03-13	2016-09-27	Panasonic Intellectual Property Management Co., Ltd.	Electric power tool
CN108415366B (zh) *	2018-03-05	2021-01-29	高邑县云发专用机床厂	基于伺服技术的切削深度反馈方法及智能切削方法及***

Also Published As

Publication number	Publication date
US20030221928A1 (en)	2003-12-04
ES2301777T3 (es)	2008-07-01
ATE392296T1 (de)	2008-05-15
EP1358969B1 (fr)	2008-04-16
DE50309612D1 (de)	2008-05-29
US6863165B2 (en)	2005-03-08
DE10219755A1 (de)	2003-11-13
EP1358969A3 (fr)	2006-08-02

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