CN1400719A - 冲击式电动工具机 - Google Patents

冲击式电动工具机 Download PDF

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Publication number
CN1400719A
CN1400719A CN02126985A CN02126985A CN1400719A CN 1400719 A CN1400719 A CN 1400719A CN 02126985 A CN02126985 A CN 02126985A CN 02126985 A CN02126985 A CN 02126985A CN 1400719 A CN1400719 A CN 1400719A
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electronic
current transformer
switch
electric tools
described electric
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CN1286248C (zh
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里希特·马丁
阿特曼·康拉德
邦格尔斯-安布罗修斯·汉斯-维尔纳
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Hilti AG
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Hilti AG
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    • 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
    • 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
    • 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
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • 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
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • B23Q11/1092—Arrangements for cooling or lubricating tools or work specially adapted for portable power-driven tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • 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
    • B25D17/26—Lubricating
    • 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
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/0057—Details related to cleaning or cooling the tool or workpiece
    • B25D2217/0061—Details related to cleaning or cooling the tool or workpiece related to cooling

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

用来部分旋转和冲击驱动一个液体冲淋的工具(2)的电动工具机(1)具有一在一防爆型壳体(3)内的由一电子控制装置(4)通过变流器(5)电子整流的电动机(6)，其中从壳体体积中通过至少一个位于内部的隔板(7)分出一带变流器(5)的电子模块壳体(9)，其中隔板(7)与变流器(5)导热连接，并具有一冷却介质管道(8)，它可通过一种液体冲淋介质进行冷却。

Description

冲击式电动工具机
技术领域
本发明涉及一种至少部分旋转和冲击式工作的电动工具机，如特别是用于采矿工程的冲击钻或凿岩机。
背景技术
沉重的、现场点支承的重量超过10公斤的冲击钻，如通常在地下采矿工程中用来驱动带有长的钻杆和20至50mm直径的钻削头的钻孔工具，以加工炮孔，它们通常是气动驱动的，以排除由于电火花产生爆炸的危险。
按EP 107629一模块化设计的带一气动冲击装置的冲击钻具有一无刷的、通过电子整流的电动机，其中电动机和变流器是气冷的。在气冷时出现的局部温度通常超过在采矿工程中非常重要的点燃温度。
根据DE 4330520，一种无刷电机的钻机具有一用于电机的水冷装置，它还进一步用于刀具的冷却。
根据DE 3417228，采用了一种电子整流的带有开关和控制机构的防爆型配置的电动机，以在地下采矿工程中作动力传动。
根据DE 19546023，一种耐压封闭的、在有可燃介质场合下使用的防爆电机沿转子轴具有一防爆间隙和一模块化设计的电机壳体，该电机壳体具有一通过隔板隔开的用于电流输入的耐压封闭的接头腔。
根据DE 3420393，用于地下采矿工程的耐压封闭的防爆电机具有一些设置在围绕定子的双层壁中的用于冷却水的冷却质通道。
发明内容
本发明的目的是实现一种用于地下采矿工程的大功率便携式，至少部分旋转和冲击式工作的电动工具机。
这个目的主要通过独立权利要求的特征来实现。优选的改进结构由从属权利要求得到。
一至少部分旋转和冲击式工作的用来驱动一个液体冲淋工具的电动工具机在一防爆型壳体内有一由电子控制装置通过变流器电子整流的电动机，其中从壳体体积中通过至少一个位于内部的隔板分出一电子模块壳体，隔板可通过冷却介质管道通过一种液体冲淋介质冷却进行冷却，并与变流器导热连接。
在带一电子整流电动机的大功率便携式电动工具机中，在变流器内电子模块壳体一侧产生的，可能导致防爆型壳体内部超过130℃局部温度的电损失可通过位于内部的隔板的冷却介质管道直接冷却，而不使壳体外侧的温度加热到110℃以上。
有利的是，冷却介质管道与用于液体冲淋的工具的刀柄连通，由此液体冷却介质可直接输送到工具内并在其内部进一步输送到加工部位处。
有利的是，给负载电流回路内的变流器供电的电源线具有至少一个与电子控制装置连接的用于一附加的普通保护电流回路以使负载电流回路提前断开的安全引线，由此在电源线机械断裂时，负载电流回路可在可能形成火花以前电气断开。
有利的是，电子控制装置与一非接触式电机开关，特别是霍尔开关连接，此开关可通过一可从外部摆动的开关杆进行操作。
有利的是，非接触式电机开关通过两个可相互独立地摆动的开关杆可以进行独有的组合操作，这两个开关杆相互并排配置，并且通过一位于中间的、在摆动区内的摆动平面内延伸的防咬合装置隔开，因此只能用两个手指操作，从而排除意外的操作，例如用一钝的物体进行的操作。
附图说明
参照一优选的实施例借助一幅作为电动工具机的附图对本发明作较详细的说明。
具体实施方式
按照图示，旋转和冲击式工作的用来驱动所夹持的、仅仅部分表示的水冲淋的工具2的电动工具机1在一防爆型的、在图示中局部剖开的壳体3内具有一由电子控制装置4通过变流器5电子整流的电动机6，其中从壳体体积中通过至少一个位于内部的隔板7分出一电子模块壳体9，隔板可通过冷却介质管道用水进行冷却，并与固定在隔板7上的变流器5导热连接。冷却介质管道8与一用于水冲淋工具2的刀柄10连通。电子控制装置4与一做成霍尔开关的非接触式电动机开关11连接，该开关可以通过一插入电子模块壳体9内的轴通过两个可相互独立摆动的以及通过一位于它们中间的防咬合装置12隔开的开关杆13a、13b进行操作。通向变流器5的负载电流回路与两条导线14a，14b通过非接触式电动机开关11可电气断开地导电连接。一电源线15通入电子模块壳体9内，该电源线除两条用于负载电流回路的导线14a，14b外还包含一与电子控制装置4连接的安全引线16。

Claims (5)

1.一种用于部分旋转和冲击式地驱动一个液体冲淋工具(2)的电动工具机，它具有一在一防爆型壳体(3)内的由一电子控制装置(4)通过变流器(5)电子整流的电动机(6)，其中从壳体体积中通过至少一个位于内部的隔板(7)分出一带有变流器(5)的电子模块壳体(9)，其特征为：隔板(7)与变流器(5)导热连接，并具有一冷却介质管道(8)，它可通过一种液体冲淋介质进行冷却。
2.按权利要求1所述的电动工具机，其特征为：所述冷却介质管道(8)与用于液体冲淋的工具(2)的刀柄(10)连通。
3.按权利要求1或2所述的电动工具机，其特征为：给负载电流回路内的变流器(5)供电的电源线(15)通过一安全引线(16)与电子控制装置(4)连接。
4.按上述权利要求之任一项所述的电动工具机，其特征为：电子控制装置(4)与一非接触式电机开关(11)连接，该开关可从外面操作。
5.按权利要求4所述的电动工具，其特征为：非接触式的电机开关(11)与两个可相互独立摆动的、相互并排配置以及通过一位于中间的防咬合装置(12)隔开的开关杆(13a、13b)连接，并可以进行独有的组合操作。
CNB021269858A 2001-07-30 2002-07-26 冲击式电动工具机 Expired - Fee Related CN1286248C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10137159.4 2001-07-30
DE10137159A DE10137159A1 (de) 2001-07-30 2001-07-30 Schlagendes Elektrohandwerkzeuggerät

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CN1400719A true CN1400719A (zh) 2003-03-05
CN1286248C CN1286248C (zh) 2006-11-22

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US (1) US6758288B2 (zh)
EP (1) EP1281485B1 (zh)
JP (1) JP2003094355A (zh)
CN (1) CN1286248C (zh)
AU (1) AU2002300034B2 (zh)
CA (1) CA2392633C (zh)
DE (2) DE10137159A1 (zh)
ZA (1) ZA200206050B (zh)

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Publication number Publication date
CN1286248C (zh) 2006-11-22
EP1281485B1 (de) 2010-06-02
DE50214463D1 (de) 2010-07-15
US6758288B2 (en) 2004-07-06
US20030019644A1 (en) 2003-01-30
EP1281485A1 (de) 2003-02-05
DE10137159A1 (de) 2003-02-20
JP2003094355A (ja) 2003-04-03
CA2392633C (en) 2007-11-20
CA2392633A1 (en) 2003-01-30
AU2002300034B2 (en) 2006-06-01
ZA200206050B (en) 2003-04-01

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