WO2003051574A1 - Machine-outil portative comprenant un systeme de refroidissement par air du moteur et un systeme d'aspiration des copeaux - Google Patents

Machine-outil portative comprenant un systeme de refroidissement par air du moteur et un systeme d'aspiration des copeaux Download PDF

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Publication number
WO2003051574A1
WO2003051574A1 PCT/DE2002/003695 DE0203695W WO03051574A1 WO 2003051574 A1 WO2003051574 A1 WO 2003051574A1 DE 0203695 W DE0203695 W DE 0203695W WO 03051574 A1 WO03051574 A1 WO 03051574A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooling
hand tool
suction
air
chip
Prior art date
Application number
PCT/DE2002/003695
Other languages
German (de)
English (en)
Inventor
Juergen Hesse
Martin Noack
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2003051574A1 publication Critical patent/WO2003051574A1/fr

Links

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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/12—Arrangements for cooling or lubricating parts of the machine
    • B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
    • B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles
    • 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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042—Devices for removing chips
    • B23Q11/0046—Devices for removing chips by sucking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06—Dust extraction equipment on grinding or polishing machines
    • B24B55/10—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
    • B24B55/102—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided with rotating tools
    • 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
    • B25F5/008—Cooling means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H02K7/145—Hand-held machine tool
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

Definitions

  • the present invention relates to a hand tool with engine air cooling and chip extraction according to the preamble of claim 1.
  • EP 579 964 Another hand tool is known from EP 579 964, which carries a chip box upstream of the cooling fan.
  • the present invention with the features of claim 1 has the advantage that the cooling exhaust air can no longer escape directly from the housing into the open air, but that dust turbulence is avoided there and the cooling exhaust air has to leave the housing in a flow-optimized manner via the dust box, so that the amount of dust entering the breathing air in the vicinity of the hand tool is reduced.
  • the chip extraction in the area of the tool engagement is improved by the injector effect of the cooling exhaust air flow directed into the dust box.
  • the drawing shows a handheld power tool 10 designed as an eccentric grinder with a housing 12 which, in the viewing direction to the left, has a horizontal handle 14 which has a manually operable switch button 16 switch, not shown, for starting and stopping the motor 20.
  • an electrical cable 18 emerges, which is used to supply power to the motor 20.
  • the housing 12 supports the motor 20 with a motor axis 19 running perpendicular to the handle 14, in the extension of which a motor shaft 22 projects downward from the motor 20.
  • the end of which is rotatably gripped by a cooling fan 26 which conveys air radially outward in the direction of the cooling exhaust air arrow 48.
  • the connecting channel 46 expands radially in particular in the region of its mouth 47 in the suction port 42, the cooling exhaust air flows along the directional arrow 48 and generates an additional oppression in the dust extraction channel 40 - as with an injector pump.
  • the chip removal from the dust extraction holes 38 of the grinding plate 34 to the dust box 50 is thus increased.
  • the housing 12 surrounding the cooling fan 26 is sealed axially downward and is penetrated by the lower end of the motor shaft 22. This is rotatably supported there in a roller bearing 28.
  • the free end of the motor shaft 22 carries a dust fan 30 which sucks in air or chips at the dust suction holes 38 of the grinding plate 34 and blows them out to the suction nozzle 42.
  • An annular sealing lip 52 seated at the lower edge of the housing 12 is resiliently pretensioned in the axial direction at the top of the grinding plate 34. The space between the housing 12 and the grinding plate 34 is thus sealed against disturbing false air and the chip removal is ensured with high efficiency.
  • the dust fan 30 has an eccentric opening (not designated in any more detail) downward toward the grinding plate 34, which serves as a bearing seat for a ball bearing 31.
  • This eccentrically seated ball bearing 31 carries an eccentric pin 32 which can be connected in a rotationally fixed manner to the grinding plate 34 by means of a screw 36.
  • the eccentric 32 follows this rotation due to the bearing friction of the ball bearing 31 by rotating about its eccentric axis 33 and simultaneously rotating around the motor axis 19 or the motor shaft 22. This leads to the characteristic orbital oscillating movement of the grinding plate 34 which is customary in the case of eccentric grinders.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

L'invention concerne une machine-outil portative (10) comprenant un boîtier (12), ce boîtier renfermant un moteur (20), présentant un système de refroidissement par air et un canal d'évacuation de l'air de refroidissement (44, 46), ainsi qu'un canal d'aspiration des copeaux (40) acheminant un flux d'air d'aspiration des copeaux. Cette machine-outil portative est non polluante et agréable à utiliser du fait que le canal d'évacuation de l'air de refroidissement (44, 46) débouche indirectement sur l'extérieur, ce canal étant relié au flux d'air d'aspiration des copeaux, ce qui permet d'éviter une accumulation de poussière dans l'air ambiant lors de l'utilisation de cette machine-outil.
PCT/DE2002/003695 2001-12-14 2002-09-27 Machine-outil portative comprenant un systeme de refroidissement par air du moteur et un systeme d'aspiration des copeaux WO2003051574A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10161616.3 2001-12-14
DE10161616A DE10161616A1 (de) 2001-12-14 2001-12-14 Handwerkzeugmaschine mit Motorluftkühlung und Spanabsaugung

Publications (1)

Publication Number Publication Date
WO2003051574A1 true WO2003051574A1 (fr) 2003-06-26

Family

ID=7709298

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/003695 WO2003051574A1 (fr) 2001-12-14 2002-09-27 Machine-outil portative comprenant un systeme de refroidissement par air du moteur et un systeme d'aspiration des copeaux

Country Status (2)

Country Link
DE (1) DE10161616A1 (fr)
WO (1) WO2003051574A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2431125A1 (fr) * 2010-09-17 2012-03-21 Makita Corporation Mécanisme de collecte de poussière
WO2012090480A3 (fr) * 2010-12-27 2012-08-30 Hitachi Koki Co., Ltd. Machine à moteur
WO2014062105A1 (fr) * 2012-10-19 2014-04-24 Husqvarna Ab Système de refroidissement interne de dispositif électrique d'extérieur
WO2019043293A1 (fr) * 2017-09-01 2019-03-07 Mirka Ltd Système de refroidissement de palier de broche dans un appareil d'abrasion
WO2022122529A1 (fr) * 2020-12-11 2022-06-16 Flex-Elektrowerkzeuge Gmbh Machine-outil

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10329828B4 (de) * 2003-06-27 2009-06-18 Festool Gmbh Handwerkzeugmaschine mit Kühlvorrichtung und Staubabsaugung
US8087977B2 (en) * 2005-05-13 2012-01-03 Black & Decker Inc. Angle grinder
DE102007057531A1 (de) * 2007-11-29 2009-06-04 Mafell Ag Elektrowerkzeug
DE102009054811B4 (de) * 2009-12-17 2021-06-17 Robert Bosch Gmbh Handwerkzeugmaschine
DE102016123179A1 (de) * 2016-11-30 2018-05-30 Metabowerke Gmbh Werkzeugmaschine mit Staubsammelvorrichtung
US10818450B2 (en) 2017-06-14 2020-10-27 Black & Decker Inc. Paddle switch
CN110883696B (zh) * 2019-12-10 2021-10-01 西安奕斯伟硅片技术有限公司 一种上抛光盘水冷却系统
EP4368338A1 (fr) * 2022-11-10 2024-05-15 X'Pole Precision Tools Inc. Machine électrique de meulage d'outils et son boîtier

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE644011C (de) * 1935-03-30 1937-04-22 Carl Sauer Nutenfraesmaschine
US3905273A (en) * 1974-07-22 1975-09-16 Shyodu Precision Instr Company Machine tool assembly
US4361957A (en) * 1980-02-16 1982-12-07 Robert Bosch Gmbh Pneumatic hand tool with vacuum debris removal
EP0458080A1 (fr) * 1990-05-25 1991-11-27 Robert Bosch Gmbh Machine-outil électrique pour manipulation manuelle
EP0558994A1 (fr) * 1992-02-29 1993-09-08 Robert Bosch Gmbh Outil à main
DE4238564A1 (de) * 1992-11-14 1994-05-19 Fein C & E Elektrowerkzeug mit Absaugung
DE4445103A1 (de) * 1994-11-18 1996-05-23 Geisler Und Kuper Gmbh Diamant Bohreinrichtung mit Bohrstaubabsaugung
GB2344648A (en) * 1998-12-12 2000-06-14 Paul Garrigan Universal power tool vacuum cleaner & adaptor
DE10053582A1 (de) * 2000-10-28 2002-05-16 Bosch Gmbh Robert Handwerkzeugmaschine mit einer Staubabsaugeinrichtung

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE644011C (de) * 1935-03-30 1937-04-22 Carl Sauer Nutenfraesmaschine
US3905273A (en) * 1974-07-22 1975-09-16 Shyodu Precision Instr Company Machine tool assembly
US4361957A (en) * 1980-02-16 1982-12-07 Robert Bosch Gmbh Pneumatic hand tool with vacuum debris removal
EP0458080A1 (fr) * 1990-05-25 1991-11-27 Robert Bosch Gmbh Machine-outil électrique pour manipulation manuelle
EP0558994A1 (fr) * 1992-02-29 1993-09-08 Robert Bosch Gmbh Outil à main
DE4238564A1 (de) * 1992-11-14 1994-05-19 Fein C & E Elektrowerkzeug mit Absaugung
DE4445103A1 (de) * 1994-11-18 1996-05-23 Geisler Und Kuper Gmbh Diamant Bohreinrichtung mit Bohrstaubabsaugung
GB2344648A (en) * 1998-12-12 2000-06-14 Paul Garrigan Universal power tool vacuum cleaner & adaptor
DE10053582A1 (de) * 2000-10-28 2002-05-16 Bosch Gmbh Robert Handwerkzeugmaschine mit einer Staubabsaugeinrichtung

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2431125A1 (fr) * 2010-09-17 2012-03-21 Makita Corporation Mécanisme de collecte de poussière
WO2012090480A3 (fr) * 2010-12-27 2012-08-30 Hitachi Koki Co., Ltd. Machine à moteur
US9068504B2 (en) 2010-12-27 2015-06-30 Hitachi Koki Co., Ltd. Engine operated machine
WO2014062105A1 (fr) * 2012-10-19 2014-04-24 Husqvarna Ab Système de refroidissement interne de dispositif électrique d'extérieur
US10369672B2 (en) 2012-10-19 2019-08-06 Husqvarna Ab Outdoor power device internal cooling system
WO2019043293A1 (fr) * 2017-09-01 2019-03-07 Mirka Ltd Système de refroidissement de palier de broche dans un appareil d'abrasion
TWI765089B (zh) * 2017-09-01 2022-05-21 芬蘭商磨卡有限公司 研磨設備中的主軸軸承冷卻配置
US11638977B2 (en) 2017-09-01 2023-05-02 Mirka Ltd. Spindle bearing cooling arrangement in an abrading apparatus
WO2022122529A1 (fr) * 2020-12-11 2022-06-16 Flex-Elektrowerkzeuge Gmbh Machine-outil

Also Published As

Publication number Publication date
DE10161616A1 (de) 2003-06-26

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