CN1330448C - 往复式电动工具的往复杆平衡机构 - Google Patents

往复式电动工具的往复杆平衡机构 Download PDF

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CN1330448C
CN1330448C CNB2004100141792A CN200410014179A CN1330448C CN 1330448 C CN1330448 C CN 1330448C CN B2004100141792 A CNB2004100141792 A CN B2004100141792A CN 200410014179 A CN200410014179 A CN 200410014179A CN 1330448 C CN1330448 C CN 1330448C
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rocker
reciprocating
fork
rod
swing
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CN1559730A (zh
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环海春
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Positec Power Tools Suzhou Co Ltd
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Positec Power Tools Suzhou Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D51/00Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
    • B23D51/16Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of drives or feed mechanisms for straight tools, e.g. saw blades, or bows

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  • Mechanical Engineering (AREA)
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  • Vibration Prevention Devices (AREA)

Abstract

一种往复式电动工具的往复杆平衡机构,包括设置传动机构、下部可转动地套在传动机构上的摆杆、滑动地设置在减速箱壳体内的往复杆及平衡块,摆杆上端部的上驱动部位与往复杆相连接。往复杆平衡机构还包括摆架,摆架与减速箱壳体通过摆架转动轴相枢轴连接,摆架转动轴下部的摆架与摆杆相活动地连接。摆架转动轴上部的摆架与平衡块相连接。通过摆杆与摆架来分别向相反的方向驱动往复杆和平衡块,可达到抵消往复杆震动的作用。

Description

往复式电动工具的往复杆平衡机构
技术领域
本发明涉及一种往复式电动工具的往复杆平衡机构。
背景技术
现有的往复式电动工具为减少震动,通常在往复杆上设置一个与往复杆移动方向相反的平衡块,参见专利文件(专利号:US6286217),其中所述的平衡块通过一个摆杆带动而做往复移动,从而抵消往复杆的震动,但这却加长了机壳的轴向长度,而且零件众多,制造也比较烦琐。
发明内容
本发明目的是提供一种往复式电动工具的往复杆平衡机构,它能克服已有技术的缺点,用较少的零件组成往复杆平衡机构。
本发明的技术方案是:一种往复式电动工具的往复杆平衡机构,包括设置在减速箱壳体内的传动机构、下部可转动地套在所述的传动机构上的摆杆、滑动地设置在所述的减速箱壳体内的往复杆和与往复杆平行滑动的平衡块,所述摆杆的上端部的上驱动部位与所述的往复杆相连接,所述往复杆平衡机构还包括摆架,所述摆架与所述减速箱壳体通过摆架转动轴相枢轴连接,所述的摆架转动轴下部的摆架与所述的摆杆相活动地连接,所述的摆架转动轴上部的摆架与所述的平衡块相连接。
本发明与现有技术相比,具有下列优点:在摆杆上活动连接与减速箱壳体枢轴连接的摆架,通过摆架带动平衡块的往复移动,不增加减速箱壳体的体积,所需的零件也比较少,减少了制造的麻烦。
附图说明
附图1为实施例一中往复式电动工具在摆杆向后摆动的状态下的剖视图;
附图2为实施例一中往复式电动工具在摆杆向前摆动的状态下的剖视图;
附图3为本发明的立体图;
附图4为摆架的立体图;
附图5为摆杆的立体图;
附图6为实施例二中往复式电动工具的剖视图;
附图7为附图6的A-A方向剖视图;
其中:1、摆杆;2、摆架;3、平衡块;4、往复杆套;5、滑动轴承;6、往复杆;7、中间驱动部位;8、上驱动部位;9、传动机构;10、平衡块驱动部;11、摆架转动轴;12、摆架驱动面;13、轴承安装孔;14、摆杆转套;15、拨杆;16、平衡块驱动孔;
具体实施方式
参见各附图,一种往复式电动工具的往复杆平衡机构,包括设置在减速箱壳体内的传动机构9、下部可转动地套在所述的传动机构9上的摆杆1、滑动地设置在所述的减速箱壳体内的往复杆6和与往复杆6平行滑动的平衡块3。所述往复杆平衡机构还包括摆架2,所述摆架2与所述减速箱壳体通过摆架转动轴11相枢轴连接,所述的摆架转动轴11下部的摆架2与所述的摆杆1相活动地连接,所述的摆架转动轴11上部的摆架2与所述的平衡块3相连接。所述摆杆1的上端部的上驱动部位8与所述的往复杆6相连接,当摆杆1受传动机构9驱动、上端部向左摆动时,上驱动部位8将驱动往复杆6后移,反之,摆杆1上端部向右摆动时,往复杆6前移。由于摆杆1在前、后方向移动的过程中有转动产生,因此下面结合两个实施例来对摆架转动轴11下部的摆架2与摆杆1相活动地连接作具体说明。
实施例一:参见附图1-附图5,所述的摆架转动轴11下部的摆架2上设置有摆架驱动面12,所述的摆杆1的下部与上端部之间设置有中间驱动部位7,所述的中间驱动部位7与所述的摆架驱动面12相球面接触。当摆杆1的上端部向左摆动时,其中间驱动部位7也向左摆动,摆架转动轴11下部的摆架2便向左跟着摆动,而摆架转动轴11上部的摆架2就向右摆动,平衡块3前移,与往复杆6的运动方向恰相反,反之,摆杆1的上端部向右摆动时,平衡块3后移,仍与往复杆6的运动方向相反。
实施例二:参见附图6-附图7,摆杆1的下部与上端部间可转动地设有摆杆转套14,所述的摆杆转套14与所述摆架转动轴11下部的摆架2相连接。所述的摆架2上设有拨杆15,所述的拨杆15的下端与所述的摆杆转套14相连接,所述拨杆15的上端与所述的平衡块3相连接。将实施例一中的摆杆1与摆架2的球面连接方式改成用摆杆转套14可转动地与摆杆1连接,与实施例一的原理相同,同样能使平衡块3的移动方向与往复杆6的移动方向相反。通过在摆杆1的大致中部位置连接摆架2,并将摆架2与减速箱壳体枢轴连接,用摆架2驱动平衡块,即可达到抵消往复杆震动的作用。

Claims (4)

1、一种往复式电动工具的往复杆平衡机构,包括设置在减速箱壳体内的传动机构(9)、下部可转动地套在所述的传动机构(9)上的摆杆(1)、滑动地设置在所述的减速箱壳体内的往复杆(6)和与往复杆(6)平行滑动的平衡块(3),所述摆杆(1)的上端部的上驱动部位(8)与所述的往复杆(6)相连接,其特征在于:所述往复杆平衡机构还包括摆架(2),所述摆架(2)与所述减速箱壳体通过摆架转动轴(11)相枢轴连接,所述的摆架转动轴(11)下部的摆架(2)与所述的摆杆(1)相活动地连接,所述的摆架转动轴(11)上部的摆架(2)与所述的平衡块(3)相连接。
2、根据权利要求1中所述的往复式电动工具的往复杆平衡机构,其特征在于:所述的摆架转动轴(11)下部的摆架(2)上设置有摆架驱动面(12),所述的摆杆(1)的下部与上端部间设置有中间驱动部位(7),所述的中间驱动部位(7)与所述的摆架驱动面(12)相球面接触。
3、根据权利要求1中所述的往复式电动工具的往复杆平衡机构,其特征在于:所述的摆杆(1)的下部与上端部间可转动地设有摆杆转套(14),所述的摆杆转套(14)与所述摆架转动轴(11)下部的摆架(2)相连接。
4、根据权利要求3中所述的往复式电动工具的往复杆平衡机构,其特征在于:所述的摆架(2)上设有拨杆(15),所述的拨杆(15)的下端与所述的摆杆转套(14)相连接,所述拨杆(15)的上端与所述的平衡块(3)相连接。
CNB2004100141792A 2004-02-25 2004-02-25 往复式电动工具的往复杆平衡机构 Expired - Fee Related CN1330448C (zh)

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US11/064,215 US7117601B2 (en) 2004-02-25 2005-02-23 Counterbalance mechanism

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CN104117728B (zh) * 2013-04-27 2018-02-02 博世电动工具(中国)有限公司 往复摆动锯
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