CN200991885Y - Electric tool - Google Patents

Electric tool Download PDF

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Publication number
CN200991885Y
CN200991885Y CN 200620170754 CN200620170754U CN200991885Y CN 200991885 Y CN200991885 Y CN 200991885Y CN 200620170754 CN200620170754 CN 200620170754 CN 200620170754 U CN200620170754 U CN 200620170754U CN 200991885 Y CN200991885 Y CN 200991885Y
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CN
China
Prior art keywords
motor
opening
bevel gear
working head
gear
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CN 200620170754
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Chinese (zh)
Inventor
陈成忠
张士松
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苏州宝时得电动工具有限公司
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Priority to CN 200620170754 priority Critical patent/CN200991885Y/en
Application granted granted Critical
Publication of CN200991885Y publication Critical patent/CN200991885Y/en

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Abstract

The utility model relates to an electric tool, comprising a motor, a motor crust housing the motor, a gear case connected with the motor crust and a work head assembly. Two openings whose axes angle, are arranged on the gear case, and the transmission assemblies driven by the motor are arranged in the openings. The work head assembly can be inserted into one of the openings and meshes with the transmission assembly in the gear case; the gear case can rotate with an angle of 360 degrees. Compared with prior art, the utility model provides an electric tool with a work head that can be conveniently transferred under different working conditions, and provides an electric tool with a work head that can work within various angles, particularly in a narrow area. The utility model has a compact structure, small size and low processing cost.

Description

一种电动工具 A power tool

技术领域 FIELD

本实用新型涉及一种工作头可以在多个角度下工作的电动工具,特别为一种可以在狭窄区域工作的电动工具。 Power tool of the present invention relates to a work head may be operated at a plurality of angles, in particular can operate as a power tool in confined areas.

背景技术 Background technique

目前电动工具的使用已经是非常普遍了,但是每次使用的时候都需要带几把以上的电动工具来完成不同的工作,举例说:完成一个柜子的组装时就需要先用枪钻来钻孔,然后再用螺丝批拧紧螺丝,特别在一些狭窄的地方没有可以把持枪钻手柄的空间时,则还需要使用角钻来钻孔。 Currently the use of power tools is already very common, but each time you use the need to bring more than a few power tools to accomplish different tasks, for example: you need a gun drill to drill upon completion of assembling a cabinet then with screwdriver tightening the screw, especially in some places it is not possible to narrow the space when the gun drill handle, you also need to be drilled using a drill angle. 日本专利申请JP11320224公开了一种角钻的结构,与普通枪钻的区别就是钻夹头轴线与马达轴线垂直,这样就能在狭窄区域内工作。 Japanese Patent Application JP11320224 discloses a drill angle structure, ordinary drill gun drill chuck difference is perpendicular to the axis of the motor axis, so that we can work in a narrow area. 为了解决工作时携带工具过多,并且更换工具太浪费时间的问题,就需要一种多功能的电动工具,其工作头可以在多个角度下,尤其可以在狭窄区域内工作。 In order to carry too much work solving tool, and the tool change is too time-consuming problems, we need a versatile power tool head can work, especially in confined areas can work at multiple angles.

美国专利US5533581揭示了一种枪钻和角钻可以相互转换的结构,其特点是头部的齿轮箱和本体之间有滚珠,致使枪钻的齿轮箱与本体之间就可以产生相对旋转,并且枪钻的齿轮箱的旋转轴线与本体之间成45度设置,这样,在枪钻的齿轮箱旋转90度后就由原来的枪钻转变成角钻了,而其齿轮箱内的机构主要是靠一级锥齿轮来实现,其缺点是:因零件不为同轴,故加工精度要求高,加工困难;并且因为齿轮箱内部的减速锥齿轮为斜线放置,故电动工具尺寸会较大,加工成本高,不易投入批量生产。 U.S. Patent US5533581 discloses a gun drill and drill interchangeable corner structure, which is characterized by a ball between the gearbox and the body of the head, so that relative rotation can be generated between the gearbox and the body of the gun drill, and 45 degrees from the axis of rotation between the body of the gun drill of the gearbox, so that, after the original is rotated by 90 degrees in the gun drill of gun drilled into the gearbox angle drill, while the gear box mechanism which mainly implemented by a bevel gear, which is a disadvantage: because parts are not coaxially, so that high-precision machining, machining is difficult; and since the interior of the bevel gear reduction gearbox hatched disposed, so the size of the electric power tool may be large, high processing costs and difficult to put into mass production. 虽然这个专利中的电钻也采用了齿轮箱,但是由于其只有单开口和单轴,所以需要电动工具转换状态时,必须旋转齿轮箱,这样导致的结果是齿轮箱与电动工具连接的结构复杂,操作也不方便。 Although this patent also uses a drill gearbox, but since only a single opening and its uniaxial, it is necessary to convert the state when the electric power tool, the gear box must be rotated, such a result is complicated gear case connected to the structure of the power tool, operation is not easy.

美国专利申请US2006147283也揭示了一种头部可以旋转的枪钻,但是此枪钻的工作头轴线始终与马达轴线同轴,所以不能实现角钻的功能,也就不能在狭窄区域内工作。 Also U.S. Patent Application US2006147283 discloses a gun drill head can be rotated, but the working of this gun drill head is always coaxial with the axis of the motor axis, the angle can not be realized only function, it can not work in a narrow area. 并且安放在电动工具的本体上的另一个工作头,在该电动工具工作的时候是不会与马达之间有任何连接,也就是说该工作头与马达之间是没有任何传动组件的,所以这就相当于是电动工具的一个附件。 And mounted on the body of the power tool further working head, when the power tool is to work without any connection to the motor, i.e. between the motor and the working head is no transmission assembly, so This is equivalent to an accessory power tools.

实用新型内容本实用新型的目的在于提供一种工作头可以在多个角度下工作,尤其可以在狭窄区域工作的电动工具;本实用新型的另一个目的是提供一种加工简单方便,结构紧凑,整体尺寸小的电动工具。 SUMMARY The present invention aims to provide a work head may be operated at a plurality of angles, in particular, can operate the electric power tool in confined areas; Another object of the present invention is to provide a simple process, compact structure, overall small size power tools.

本实用新型解决现有技术问题所采用的技术方案是:一种电动工具,包括:马达,收容马达的马达壳体,与马达壳体相连接的齿轮箱,以及工作头组件,所述的齿轮箱上设置有轴线互成角度的第一开口和第二开口,在开口内设置有被马达所驱动的传动组件,工作头组件可选择地插入到其中一个开口中,并与齿轮箱内的传动组件相啮合。 Aspect of the present invention to solve the problem of the prior art is adopted: a power tool comprising: a motor, a motor housing accommodating the motor, a gear box connected to the motor housing, and the working head assembly, said gear the tank is provided with an axis angled first and second openings, provided with a drive assembly is driven by a motor, the working head assembly selectively inserted into one of the openings in the opening, and the drive gear box assembly is engaged.

上述的电动工具的马达壳体与齿轮箱之间还设有锁紧组件,锁紧组件使齿轮箱相对于马达轴线可转动地与马达壳体连接。 A locking assembly is also provided between the motor housing of the electric power tool described above with the gear box, the gear box locking assembly relative to the motor axis rotatably connected to the motor housing. 其中,锁紧组件通过螺钉与马达外壳固定;锁紧组件包括锁紧套,锁紧套的前端设有凹孔,凹孔内放置有滚珠和弹簧,弹簧一端抵靠在锁紧套的内壁上,另一端抵靠在滚珠上;齿轮箱的外壳的后端面在圆周方向上排列设置有半圆孔,可以部分收容滚珠,这样锁紧组件与齿轮箱之间就可以相对转动。 Wherein the locking assembly is fixed by screws to the motor housing; locking assembly includes a locking sleeve, the distal end of the locking sleeve is provided with recesses, concave holes placed ball and a spring, one end of the spring abutting against the inner wall of the locking sleeve , and the other end abuts against the ball; rear end surface of the housing of the gearbox are arranged in the circumferential direction with a semicircular hole, may partially accommodating the balls, so that the locking can be relative rotation between the gear case assembly.

上述的齿轮箱上的第一开口的中心轴线与马达的马达轴线平行,齿轮箱上的第二开口的中心轴线与马达的马达轴线垂直。 Central axis of the motor axis of the motor on the first opening of the gear housing parallel to the motor axis perpendicular to the central axis of the motor of the second opening in the gearbox. 齿轮箱内的传动组件包括被马达所驱动的后轴及与后轴相连的齿轮组件,所述的齿轮组件包括相互啮合的第一锥齿轮和第二锥齿轮,其中,第一锥齿轮的中心轴线与第一开口的中心轴线重合,第二锥齿轮的中心轴线与第二开口的中心轴线重合。 The drive assembly comprises a gear box driven by a motor axle and a rear axle with a gear assembly connected to said gear assembly comprising a first bevel gear and a second bevel gear meshing with each other, wherein the first bevel sun gear axis coincides with the central axis of the first opening, a central axis of the second bevel gear and the second opening coincide.

在优选实施例中,所述的工作头组件包括前轴及与前轴相连的工作头。 In a preferred embodiment, the working head assembly comprises a front axle and the front axle of the working head.

当前轴插入到其中任一个开口后,前轴与后轴通过齿轮箱内的传动组件相啮合。 Wherein the shaft is inserted into the current to any one of the openings, the front axle and the rear axle drive assembly is engaged by a gear box. 进一步地,当前轴插入第一开口时,前轴和后轴之间是由前轴的外花键与后轴的内花键之间的配合传动;当前轴插入到第二开口中,前轴与第二锥齿轮相配接啮合。 Furthermore, when inserted into the first opening of the current axis, between front and rear axles by mating external spline transmission between the front axle and the rear axle internal splines; this shaft is inserted into the second opening, the front axle for mating with a second bevel gear meshed.

在另一实施例中,所述的齿轮组件包括第三锥齿轮及分别与第三锥齿轮啮合的第一锥齿轮和第二锥齿轮。 In another embodiment, the gear assembly includes a third bevel gear and the first bevel gear are meshed with the third bevel gear and a second bevel gear.

或者,上述的电动工具中,在齿轮箱内部设置有限位套,限位套的内孔中设置有内花键,在其外侧还设置有缺口,并且在缺口内也套有卡簧;前轴可以被限位套所固接。 Alternatively, the above-described electric power tool, disposed within the gear case cover finite bit, the hole in the stopper sleeve is provided with an inner spline, which is also provided with a notch on the outside, and also has a cover in the notch circlip; front axle It may be secured to the stopper sleeve.

进一步地,在另一实施例中,所述的工作头组件可以为一单个的工作头,所述的传动组件包括被马达所驱动的后轴,与后轴相连的齿轮组件以及工作头夹紧件。 Further, in another embodiment, the working head assembly may be a single working head, said drive assembly includes a motor driven rear axle and the rear axle, and a gear assembly coupled to the work head clamp pieces.

所述的工作头夹紧件设于第一开口中并与后轴固定连接,所述的工作头可以插入到工作头夹紧件内并与之配接。 The working head is provided in the first clamping member opening and is fixedly connected to the rear axle, the working head to the working head may be inserted within the clamping member, and mating therewith. 另一个工作头夹紧件处于第二开口内配接于第二锥齿轮,所述的后轴配接于第一锥齿轮上,所述的工作头可以插入到其中任何一个工作头夹紧件内并与之配接。 Another working head clamping member is connected to the second bevel gear with the second opening, the rear axle with the first bevel gear connected to the working head may be inserted into any of a working head clamp within and with mating.

更进一步地,上述的电动工具中,前轴和工作头之间可以为螺纹固定连接,前轴上设有旋紧螺纹用的夹持部;工作头可以是钻夹头,用来夹紧钻头,也可以是螺丝批头,磨头,砂轮片,砂轮棒,锯片等。 Still further, the above-described electric power tool, between the front and the working head may be screwed connection, the front axle is provided with a holding portion for screw thread; work head may be a drill chuck, for clamping the drill bit may be a screwdriver head, grinding head, grinding wheel, wheel rods, saw blades. 上述的齿轮箱内还固定有密封圈,用于防止润滑油外泄。 The gear box is also fixed to the above-described seal ring for preventing leakage of the lubricating oil.

与现有技术相比,本实用新型的有益效果是:提供了一种工作头在不同工作状态之间方便转换的电动工具,并提供了一种工作头可以在多个角度下工作,尤其可以在狭窄区域工作的电动工具,而且本实用新型的结构紧凑,整体尺寸小,加工成本低。 Compared with the prior art, the beneficial effects of the present invention are: to provide a power tool head between different work convenient operating state transition, and provides a working head can be operated at a plurality of angles, in particular work in a narrow region of the power tool, but the present invention is compact, small overall size, low processing cost.

附图说明 BRIEF DESCRIPTION

下面结合附图对本实用新型的技术方案进行详细说明。 Next, the technical solution of the present invention is described in detail in conjunction with the accompanying drawings.

图1是本实用新型的第一实施例的第一状态的立体图。 FIG. 1 is a perspective view of the invention, a first state of a first embodiment of the present embodiment.

图2是本实用新型的第一实施例的第一状态的局部剖视图。 FIG 2 is a partial cross-sectional view of the present invention a first state of the first embodiment.

图2a,2b,2c是图2的局部放大图。 FIGS. 2a, 2b, 2c is an enlarged partial view of FIG. 2.

图3是本实用新型的第一实施例的第二状态的立体图。 FIG 3 is a perspective view of the present invention a second state of the first embodiment.

图4是本实用新型的第一实施例的第二状态的局部剖视图。 FIG 4 is a partial sectional view of the present invention a second state of the first embodiment.

图5是本实用新型的第一实施例的局部爆炸图。 FIG 5 is a partial explosion of the present invention the first embodiment of FIG.

图6是本实用新型的第一实施例的齿轮箱的爆炸图。 FIG 6 is an exploded view of the present invention the gear box of the first embodiment.

图7是本实用新型的第二实施例的示意图。 FIG 7 is a schematic view of a second embodiment of the present invention embodiment.

图8是本实用新型的第三实施例的示意图。 FIG 8 is a third embodiment of the present invention embodiment of FIG.

图9是本实用新型的第四实施例的示意图。 FIG 9 is a schematic view of a fourth embodiment of the present invention embodiment.

图10a,10b,10c,10d是本实用新型的工作头组件的各个实施例的示意图。 FIG. 10a, 10b, 10c, 10d is a schematic view of various embodiments of the present invention embodiment the working head assembly.

其中,1 马达壳体 10 电动工具 2 马达20 马达轴线 21 马达轴 22 马达风扇 Wherein the electric power tool 1 of the motor housing 10 of the motor 2 axis motor 20 of the motor shaft 22 of the motor 21 of the fan

24 弹簧 3 后轴 31 内花键32 缺口 33 外花键 34 凹圈35 细轴部 4 工作头组件 41 工作头42 前轴 421 螺纹 422 夹持部423 中间轴部 424 外花键 425 凹槽5 中击齿轮 6 齿轮箱 60 外壳61 第一开口 611 中心轴线 62 第二开口621 中心轴线 63 螺钉孔 64 螺钉65 半圆孔 7 锁紧组件 70 锁紧套71 凹孔 72 滚珠 73 弹簧74 紧固螺钉 81 第一锥齿轮 811 中心轴线813 内花键 82 第二锥齿轮 821 中心轴线823 内花键 825 中轴 827 缺口83 卡簧 831 凹部 84 密封圈85 卡圈 86 挡圈 87 轴承88 第三锥齿轮 89 作头夹紧件 9 限位套91 内花键 92 缺口 101 上盖102 箱盖具体实施方式本实用新型涉及一种工 3 spring 24 within the cutout 32 of the rear axle 31 spline 33 male spline ring 34 recess 35 the thin shaft portion 4 workhead assembly 41 operating head 42 of the front axle 421 threaded shaft 422 nip 423 intermediate portion 425 recess 424 male spline 5 6 hit in the gearbox the gear housing 60 a first opening 61 second opening 611 central axis of central axis 62 screw hole 64 screw 62 163 65 7 semi-circular locking assembly 70 locking sleeve 71 recesses 72 ball 73 spring 74 fastening screw 81 the seal ring 84 within the ring 85 of the collar 86 of the first bevel gear 811 central axis 813 within the second bevel gear 82 splined central axis 821 823 827 notched spline axis 825 circlip 83 bearing recess 87 831 88 89 third bevel gear 9 for the first clamping member stopper sleeve 92 spline notches 101 particular embodiments within the cover 102 upper cover 91 of the present invention relates to a station 作头可以在多个角度下工作的电动工具。 The power tool head may be operated at a plurality of angles. 图1至图6揭示了本实用新型的第一实施例。 Figures 1 to 6 of the present invention discloses a first embodiment.

如图1和图2所示,与现有技术一致,电动工具10包括有马达壳体1和工作头组件4,收容在马达壳体1内的马达2具有马达轴线20,马达2驱动马达轴21,马达轴21上固定有冷却用的马达风扇22。 1 and 2, consistent with the prior art, the electric power tool comprises a motor housing 10 and a working head assembly 4, a motor housed within the motor housing 1 220, the motor shaft of the drive motor 2 having a motor axis 21, is fixed to the motor shaft 22 of the motor fan 21 for cooling. 马达轴21的前端为齿轮状,与冲击齿轮5相啮合,两者配合传动。 The front end of the motor shaft 21 is a gear shape, a gear 5 meshed with the impact, both with the drive. 冲击齿轮5是固定在后轴3上,可以与后轴3一起转动,并且冲击齿轮5是固定在后轴3的细轴部35(图5中显示)上,与冲击齿轮5抵接的是后轴3的一个台阶部,这样保证冲击齿轮5和后轴3可以一起轴向运动。 Impact gear 5 is fixed to the rear axle 3, 3 can be rotated together with the rear axle, and the impact of the gear 5 is fixed (shown in FIG. 5) in the thin shaft portion 353 of the rear axle on the gear 5 comes into contact with the shock is a stepped portion of the rear axle 3, thus ensuring that the impact of the rear axle gear 3 and 5 may be axially moved together. 另外,工作头组件4也是跟现有技术一样,是由工作头41和前轴42固定组成。 Further, the working head assembly 4 is the same as with the prior art, the working head 41 is composed of a front axle 42 and the fixed component. 本优选实施例中工作头41为一钻夹头。 In a preferred embodiment of the present embodiment the working head 41 to a drill chuck.

如图1至图4所示,电动工具10还包括有与马达壳体1连接在一起的齿轮箱6,以及起到连接作用的锁紧组件7。 As shown in FIG. 1 to FIG. 4, the power tool 10 further includes a housing connected to the motor with gearbox 6, and the locking member 7 functions as the ligation. 工作头组件4可以有选择地部分插入到齿轮箱6中。 Working head assembly 4 can be selectively inserted into the portion of the gear box 6.

如图5中所示,齿轮箱6上设置有第一开口61和第二开口62,两者的中轴线611,621互相垂直。 As shown, the gear box 6 is provided with a first opening 61 and second opening 625 in the central axis 611, 621 of the two mutually perpendicular. 其中,与工作头41固定的前轴42可以插入到任意一个开口61,62中。 Wherein the working head 41 fixed to the front axle 42 may be inserted in any one of the openings 61, 62. 齿轮箱6的第一开口61的中心轴线611与马达轴线20(图2中显示)平行,当前轴42插入到第一开口61时,电动工具处于第一状态;齿轮箱6的第二开口62的中心轴线621与马达轴线20(图2中显示)垂直,当前轴42插入到第二开口62时,电动工具处于第二状态。 The first opening 61 of the gear case 611 and the central axis of the motor axis 206 (shown in Figure 2) parallel to the shaft 42 when this is inserted into the first opening 61, the electric power tool is in a first state; gear box of the second opening 626 when the central axis 621 of the motor axis 20 (shown in Figure 2) perpendicular to this shaft 42 is inserted into the second opening 62, the electric power tool is in the second state.

图5中还揭示了前轴42和后轴3的具体结构。 5 further discloses a specific configuration of the rear axle and front axle 42 3. 前轴42的前端设置有螺纹421和夹持部422,与现有技术一致的是前轴42是通过螺纹421与工作头41紧固在一起的。 Front end 42 is threaded front axle 421 and the holding portion 422, consistent with the prior art is that the front axle 42 by a screw 421 to the work head 41 are fastened together. 夹持部422是在圆轴上设置的两个相对称的平面,其作用是为了与扳手的卡紧面相配合拧紧螺纹421之用。 Two holding portions 422 are symmetrical in the plane of the circle axis is provided, and its role is to fit the wrench gripping surface 421 by tightening the screw. 前轴42还包括有一个中间轴部423,在中间轴部423的尾部设置有外花键424和一个凹槽425。 A front axle 42 also includes an intermediate shaft portion 423, at the end of the intermediate shaft portion 423 is provided with external splines 424 and a recess 425. 后轴3在其前端设置有内花键31,与前轴42的外花键424可以配合传动。 The rear axle 3 is provided at its front end has internal splines 31, and the external splines 42 of the front axle 424 may drive fit. 后轴3在其部分外周上设置有外花键33,在外花键33的前端有缺口32,后端有凹圈34,并且在后轴3的尾部为一细轴部35,用于固定冲击齿轮5。 The rear axle 3 is provided on its outer peripheral portion with external splines 33, the splines 33 of the distal end of the outer notch 32, the rear end recessed ring 34, the rear axle 3 and at the end of a small shaft portion 35, for fixing shock 5 gear.

如图2及2b中所示,在第一状态下,也就是当前轴42插入到第一开口61时,前轴42的外花键424就插入到后轴3的内花键31中,花键之间配合传动使前轴42和后轴3一起旋转,旋转状态就传递给工作头41,也就是钻夹头,这样就达到了普通的枪钻功能。 As shown in FIG. 2 and 2b, in the first state, this shaft 42 is inserted into the first opening 61, the external splines 424 on the front axle 42 is inserted into the rear axle 31 of the internal spline 3, flower between the key 42 with the front axle and rear gear 3 rotates together with the rotation status is transmitted to the work head 41, i.e. drill chuck, so that to achieve a normal gun drill function.

图6中揭示了齿轮箱6的具体结构。 FIG 6 discloses a specific structure of the gear box 6. 齿轮箱6包括有两个外壳60,外壳上设置有四个螺钉孔63,螺钉64穿过螺钉孔63把两个外壳60装配在一起。 6 comprises two gearbox housing 60, the housing is provided with four screw holes 63, the screws 64 through the screw holes 63 of the two housings 60 are assembled together. 第一开口61和第二开口62是由齿轮箱的两个外壳60装配在一起后形成的。 A first opening 61 and second opening 62 is a rear two together by a gearbox housing 60 is formed.

齿轮箱6内设置有相互啮合的第一锥齿轮81和第二锥齿轮82,其中,第一锥齿轮81的中心轴线811与第一开口61的中心轴线611重合,第二锥齿轮82的中心轴线821与第二开口62的中心轴线621重合。 A first bevel gear 81 in the gear case 6 is provided with intermeshing and a second bevel gear 82, wherein the central axis 611 the central axis 811 of the first bevel gear 81 coincides with the first opening 61, the center of the second bevel gear 82 axis 821 and the central axis 621 coincides with the second opening 62. 第一锥齿轮81的内孔中设置有内花键813,始终套接在后轴3的外周上与后轴3的外花键33配合传动。 The bore in first bevel gear 81 is provided with internal spline 813, the socket and the rear axle is always the external splines 33 of the drive fitted on the outer periphery of the rear axle 3. 第二锥齿轮82上设置有一个中轴825,其内孔中设置有与后轴3的内花键31相同的内花键823,也可供前轴42的外花键424插入配合传动。 A second bevel gear 82 has a central axis 825, the internal bore of the rear axle is provided with internal splines 31 of the same internal splines 823, but also for the external splines 42 of the axle 424 is inserted into the drive fit.

如图3和图4所示,当前轴42插入到第二开口62时,前轴42的外花键424就插入到第二锥齿轮82的内花键823中。 When as shown in FIGS. 3 and 4, this shaft 42 is inserted into the second opening 62, the external splines 424 on the front axle 42 is inserted into the second bevel gear 823 spline 82. 此时前轴42和后轴3的传动过程包括,后轴3的旋转通过外花键33和第一锥齿轮81的内花键813带动第一锥齿轮81的转动,与第一锥齿轮81相啮合的第二锥齿轮82就能通过内花键823和前轴42的外花键424配合带动前轴42开始旋转。 At this time, the front axle 42 and rear axle 3 includes a transmission process, the rear axle 3 through the rotation of the inner spline 33 and the external splines 81 of the first bevel gear 81 rotates the first bevel gear 813 driven with the first bevel gear 81 the second bevel gear 82 can be engaged by the inner splines 823 and outer splines 42 of the front axle 424 with the drive axle 42 begins to rotate. 旋转状态传递给钻夹头41,因为此时工作头组件4的中心轴线已与马达轴线20垂直,所以就达到了普通的角钻功能,就能在狭窄区域内钻孔。 Rotation status to the drill chuck 41, because the central axis of the working head assembly 4 has a vertical axis motor 20, the angle reached normal drilling function, it can be drilled in a narrow area.

为了使前轴42在工作中不发生与后轴3脱落的情况,现采取以下优选实施例。 Front axle case 42 to the rear axle 3 is off and does not occur in the work, now take the following preferred embodiments. 如图6中所示,在齿轮箱6内还包括有卡簧83,卡簧83为一波浪形状的、具有弹性的金属丝,并且在波谷位置为三个凹部831。 As shown in FIG. 6, in the gear box 6 further comprises a circlip 83, the circlip 83 is of a wavy shape, the wire having an elasticity, in the trough and three recesses 831 position. 如图2及其局部放大图2b中所示,后轴3的缺口32内套有卡簧83,卡簧83的凹部831可以穿过缺口32,即凹部831的顶点之间的距离小于后轴3的内径。 2 and a partial enlarged view in Figure 2b, the notch 32 of the rear axle 3 with a sleeve circlip 83, the circlip 83 may be recessed portion 831 through the aperture 32, i.e. the distance between the vertex of the concave portion 831 is smaller than the rear axle bores 3. 当前轴42插入到第一开口61时,凹部831就会收容在前轴42的凹槽425中,这样可以使前轴42和后轴3之间的轴向位移相对固定。 When this shaft 42 is inserted into the first opening 61, the recessed portion 831 will be received in the recess 425 of the front axle 42, which allows the front axle 42 and rear axial displacement between 3 relatively fixed.

同样的,如图4中所示,第二锥齿轮82在中轴825的尾部有缺口827,与后轴3的缺口32相同,在缺口827内也套有卡簧83,当前轴42插入到第二开口62时,卡簧83的凹部831可以穿过缺口827再收容在前轴42的凹槽425中,通过卡簧83的作用可以使前轴42和第二锥齿轮82之间的轴向位移相对固定。 Similarly, as shown in FIG. 4, the second bevel gear 82 has a notch 827 at the end of axis 825 is the same as the notch 32 of the rear axle 3, the notch 827 in the sleeve also has a circlip 83, the shaft 42 is inserted into the current when the second opening 62, the clamp spring recess 831 through the shaft 83 may be housed in another notch 827 recess 425 of the front axle 42, front axle 42 and can be made by the action of the second bevel gear 82 between the circlip 83 relatively fixed displacement. 当然不局限于这一个固定前轴的方法,简单的卡扣结构都在本实用新型的保护范围之内。 Of course, not limited to this method a fixed front axle, a simple snap-in structures within the scope of the present invention.

如图5中所示,锁紧组件7为一圆环型金属套,锁紧组件7通过紧固螺钉74与马达外壳1固定。 As shown in FIG. 5, the locking member 7 is a donut-shaped metal cover, the locking assembly 7 is fixed by fastening screws 74 and the motor housing 1. 锁紧组件7包括锁紧套70,锁紧套70的前端设有三个凹孔71,凹孔71内放置有滚珠72,图2a为锁紧套70的局部剖视图,凹孔71内还放置有弹簧73,弹簧73一端抵靠在锁紧套70的内壁上,另一端抵靠在滚珠72上,在初始状态时,弹簧73处于受压缩状态,始终有把滚珠72往外顶出的趋势。 7 the locking assembly includes a locking sleeve 70, the distal end 70 of the locking sleeve is provided with three recesses 71, the ball 72 is placed within the recesses 71, FIG. 2a is a partial cross-sectional view of the locking sleeve 70, also disposed within the recesses 71 have spring 73, one end of spring 73 abuts on the inner wall of the locking sleeve 70 and the other end against the ball 72, in the initial state, the spring 73 is in a compressed state, is always the balls 72 out of the top of the trend.

如图6中所示的齿轮箱6的外壳60的后端面圆周方向上排列设置有若干个半圆孔65,可以部分收容滚珠72。 Are arranged on the rear end circumferential direction of the gear box 6 shown in FIG. 6 in the housing 60 has a plurality of semi-circular holes 65, the balls 72 may be partially housed. 当滚珠72的一部分收容在半圆孔65里面,而另一部分还收容在凹孔71中的时候,齿轮箱6与锁紧组件7就固定在一起。 When a portion of the balls 72 housed inside the semi-circular holes 65, while another portion is also received in the recesses 71 when the locking member 6 and the gear box 7 is fixed together. 由于后轴3与齿轮箱6是可以相对旋转的,所以当前轴42插入到第二开口62后,可以旋转齿轮箱6,使工作头组件4在垂直于马达轴线20的平面上作360度旋转。 Since the rear axle 3 and the gear box 6 is rotatable relative to, the shaft 42 is inserted after the current to the second opening 62, may rotate the gearbox 6, the working head assembly 4 rotates 360 degrees in a plane perpendicular to the motor axis 20 . 当旋转齿轮箱6时,滚珠72会从半圆孔65中脱出,齿轮箱6的后表面对滚珠72起到一个压缩作用,使弹簧收缩。 When the rotation of the gear box 6, the balls 72 will be released from the semi-circular apertures 65, the rear surface of the gear box 6 functions as a compression ball 72, the spring contracts. 而当齿轮箱6旋转到一个需要的角度的时候,滚珠72会在弹簧73的作用下向半圆孔65内弹入,并且部分收容在半圆孔65内,部分收容在锁紧套70的凹孔71中,这样,齿轮箱6与锁紧组件7则又固定在一起了。 When the gearbox 6 is rotated to a desired angle when the ball 72 will inject into the semi-circular aperture 65 by the spring 73 and partially housed in the semi-circular holes 65, partially housed in the recesses 70 of the locking sleeve 71, so that the gear box 6 and locking member 7 and secured together. 所以,设置锁紧组件7的作用就是可以使电动工具10在处于第二状态,即本实施例的角钻状态下,其工作头组件4可以随齿轮箱6的转动而转动,这样,角钻的钻头就能在360度范围内的任意角度固定后工作。 Therefore, the role of the locking assembly 7 is provided can be made in the electric power tool 10 is in the second state, i.e. the state of the present embodiment at angle drill embodiment, the working head assembly 4 can be rotated with the rotation of the gear box 6 so that the angle drill after the drill can work at any angle in the range of 360 degrees is fixed.

进一步地,如图2和图6中所示,在齿轮箱6内还包括有两个密封圈84,分别套接在后轴3和第二锥齿轮82的外周上,用于维持放置在锥齿轮81,82上的润滑油。 Further, as shown in FIG. 2 and FIG. 6, in the gear box 6 also comprises two sealing rings 84, respectively sleeved on the outer periphery of the rear axle 3 and the second bevel gear 82 disposed for maintaining the cone lubricating oil on the gears 81, 82. 如图6和图2、2c中所示,有一卡圈85收容于后轴3的凹圈34中,并且有一挡圈86抵接在卡圈85的一侧。 As shown in FIG. 6 and FIG. 2, 2C, it has a collar 85 housed in the recessed ring 343 of the rear axle, and a retainer ring 86 abuts against the side 85 of the collar. 有一个弹簧24一端抵靠在挡圈86上,另一端抵靠在冲击齿轮5上。 One end of a spring 24 against the collar 86, the other end of the gear 5 against the impact. 与现有技术一样,在弹簧24的作用下,冲击齿轮5可以带动后轴3产生一定频率的冲击,从而带动工作头组件4在旋转的过程中也会产生一定频率的冲击。 As with the prior art, under the action of spring 24, the impact of the rear axle 3 drives the gear 5 may have an impact of a certain frequency, thereby driving the working head assembly 4 will also have an impact in a certain frequency during rotation.

图7中揭示了本实用新型的第二实施例。 FIG 7 discloses a second embodiment of the present invention embodiment. 与第一实施例不同的是齿轮箱6中还设置有第三锥齿轮88,可以与第一锥齿轮81和第二锥齿轮82同时啮合。 Embodiment of the first embodiment except that the gearbox 6 is also provided with a third bevel gear 88 can be meshed simultaneously with the first bevel gear 81 and the second bevel gear 82. 这样,由于有了第三锥齿轮88的过渡作用,第一锥齿轮81和第二锥齿轮82可以同时同方向转动。 Thus, thanks to the effect of the transition of the third bevel gear 88, a first bevel gear 81 and the second bevel gear 82 can be simultaneously rotated in the same direction. 例如当第一锥齿轮81顺时针方向转动的时候,第二锥齿轮82也顺时针方向转动。 For example, when the first bevel gear 81 rotates clockwise when the second bevel gear 82 is also rotated in the clockwise direction. 图7中目前本实用新型处于第一状态,当把工作头41和前轴42拔出,再沿虚线处插入时,则本实用新型就可以转变成第二状态。 FIG. 7 is currently in the first state of the present invention, when the work head 41 and front axle 42 removed, and then inserted in the dotted line, then the present invention can be transformed into a second state. 这时候的工作头41和前轴42的转动方向与处于第一状态下的工作头41和前轴42的转动方向是一致的。 This time the working head 41 and the front axle 42 in the rotational direction is the same direction of rotation of the working head 41 in the first state and the front axle 42.

为了达到工作头41在两个状态下的转动方向的一致性,本实用新型还揭示了第三实施例。 In order to achieve consistency in the rotational direction 41 of the two states of the working head, the present invention also discloses a third embodiment. 如图8中所示,在齿轮箱6内还设置有限位套9,其内孔中设置有与第二锥齿轮82的内花键823形状一致的内花键91;而在限位套9的另一端的外侧还设置有缺口92,其形状和作用也与后轴3的缺口32一样内部设置有卡簧83(图2和图2b中所示),当然与设置在前轴3上的卡簧83的作用也一样,可以在前轴42插入时起到固定前轴42轴向位移的作用。 As shown in FIG. 8, in the gear box 6 is also provided with a limit sleeve 19, which is provided with a hole coincident with the second bevel gear splined 82,382 shape internal splines 91; and the stopper sleeve 9 the other end of the outer notch 92 is also provided, which effect the same shape and the notch 323 and the rear axle is provided inside with a circlip 83 (shown in FIG. 2 and FIG. 2B), of course, provided on the front axle 3 the same effect circlip 83, fixed axle 42 may act upon axial displacement of the front axle 42 is inserted. 本实施例中的第二锥齿轮82的形状适当的作了改进,在中轴825外侧有一凹槽,内部放置有一轴承87。 Examples of the second bevel gear 82 of the present embodiment of the appropriate shape has been improved, the outer axis 825 there is a groove, a bearing 87 is placed inside. 在齿轮箱6的外壳60上还用螺钉固定有上盖101和箱盖102,两者的作用都是为了固定轴承87,也起到一部分的美观作用。 The gearbox housing 60 fixed by screws 6 also has the upper lid 101 and the cover 102 are designed to function as both a fixed bearing 87, also play a part in the aesthetic effect. 与图7中的第二实施例一样,图8中本实用新型也处于第一状态,当把工作头41和前轴42拔出,再沿虚线处插入时,本实用新型就可以转变成第二状态,这时的工作头41的转动方向和第一状态下工作头41的转动方向是一致的。 As in the second embodiment in FIG. 7 embodiment, the present invention also is in the first state of FIG. 8, when the work head 41 and front axle 42 removed, and then inserted in the dotted line, the present invention can be converted into a first a second state, the rotation direction of the rotational direction of the working head case 41 and a first state of the head 41 is the same. 其原理是:虽然锥齿轮81和82的转动方向相反,但是第二状态时工作头41和前轴42的插入方向与第一实施例的插入方向相反,这样工作头41在两个状态下的转动方向就是一致的。 The principle is: Although the bevel gear 81 and the opposite rotational direction 82, but the second state when the work head 41 and front axle 42 opposite to the insertion direction of the insertion direction of the first embodiment, so that the working head 41 in two states It is the same direction of rotation. 本实施例中工作头41为钻夹头,在实际操作中,第一状态下钻头顺时针转动可以用来转孔;而当转换成第二状态时,钻头也是顺时针转动,同样也是为转孔用,这样该此时电动工具就具备了普通的角钻的功能了。 In the present embodiment the working head 41 of the drill chuck embodiment, in practice, the clockwise rotation of the drill bit can be used to transfect the first aperture state; and into a second state when the drill bit is rotated clockwise, is also transferred to hole, so that the case is provided with a power tool to a normal function of the angle drill.

图9中揭示了本实用新型的第四实施例。 Fig 9 discloses a fourth embodiment of the present invention embodiment. 由锁紧组件7连接到马达壳体1上的齿轮箱6同样包括有第一开口61和第二开口62,其壳体内部包括有一个被马达2驱动的后轴3。 7 by a locking assembly is connected to the motor housing 6 on the gearbox 1 also comprises a first opening 61 and second opening 62, which is inside the motor housing 2 includes a driven rear axle 3. 在第一开口61内设置有一工作头夹紧件89,在本实施例的优选方案中,工作头夹紧件89为一螺丝批套,并与后轴3制成一体,当然若是工艺的安排,两者也可以分开制造,在装配的时候两者再固定配接。 A first opening provided in the working head 61 has a clamping member 89, in a preferred embodiment according to the present embodiment, the working head 89 clamping member is a screwdriver set, and is integrally formed with the rear axle 3, of course, if the process arrangement both may be manufactured separately, both at the time of assembly and then fixed mating. 所述的螺丝批套的前端少许地裸露在齿轮箱的壳体外。 The front end of the sleeve screwdriver little at exposed outside the housing of the gearbox. 在本实施例中,所述的工作头41的一螺丝批头,其尾部为普通的六角形;而螺丝批套的前端设置有内六角,则两者可以插拔式配合连接。 In the present embodiment, the working head 41 of a screwdriver head, the tail is an ordinary hexagon; screwdriver and sleeve distal end is provided with a hexagon socket, the plug can both fit connection. 当螺丝批头41插入到螺丝批套中后就形成了该电动工具的第一状态,即成为了普通的螺丝批了。 When the screwdriver head screwdriver 41 is inserted into the sleeve after the formation of a first state of the electric power tool, i.e., become a common screwdriver.

本实施例中,齿轮箱6内还设置有相互啮合的第一锥齿轮81和第二锥齿轮82,与前三个实施例一样,第一锥齿轮81的中心轴线811与第一开口61的中心轴线611重合,第二锥齿轮82的中心轴线821与第二开口62的中心轴线621重合。 In this embodiment, the gear box 6 is further provided with a first bevel gear meshing with each other 81 and the second bevel gear 82, as in the previous three embodiments, the central axis of the first bevel gear 81 of the first opening 61 of the 811 It coincides with the central axis 611, a second bevel gear 82 of the central axis 821 and the central axis 621 coincides with the second opening 62. 其中,后轴3是由一花键与第一锥齿轮81配接的;同时,有一工作头夹紧件89位于第二开口62内插入到第二锥齿轮82中,两者也是由花键823配接。 Wherein the rear axle 3 is formed by a first bevel gear spline 81 mating; at the same time, a working head located in clamping member 89 is inserted into the second bevel gear 82 within the second opening 62, both are spline 823 mating. 同位于第一开口61内的工作头夹紧件89一样也是一个螺丝批套,其前端也设置有内六角形状,并少许地裸露在齿轮箱的壳体外当螺丝批头41沿图中虚线处插入时,即插入到第二开口62内的工作头夹紧件89中,该电动工具就处于第二状态了。 With the working head is located within the opening 61 of the first clamping member 89 is the same as a screwdriver sleeve, the tip is also provided with a hexagonal shape, and little exposed to the outer housing of the gearbox when the dashed line along head 41 of the screwdriver in FIG. when inserted, i.e. inserted in the second opening of the working head 62 clamping member 89, the power tool is in the second state. 马达2驱动后轴3转动,带动两个锥齿轮转动,使螺丝批套带动螺丝批头41也一同转动,从而使螺丝批头41开始工作。 The motor 2 3 rotates the drive axle, drives two bevel gears that drive the screwdriver head screwdriver sleeve 41 is also rotated together, so that the screwdriver head 41 starts to work. 此时的电动工具就可以在一些狭窄的区域拧螺丝用了。 At this time, the power tool can tighten the screws in some areas by a narrow.

在这个实施例中,两个工作头夹紧件89都是稍微伸出齿轮箱6外的,这样做的原因是为了装拆工作头41的方便;或者,为了美观等其他原因,工作头夹紧件89也可以完全设置在齿轮箱6的内部。 In this embodiment, two working head 89 clamping member 6 is slightly extended out of the gear box, the reason for this is to facilitate the assembly and disassembly work head 41; or the like for other aesthetic reasons, the working head clamp tightening member 89 may be completely disposed within the gear case 6.

在第一至第三实施例中,即如图1至图8中所示的工作头41是钻夹头,专门用来夹紧钻头,来达到枪钻或角钻的功能;第四实施例中的工作头41是螺丝批头;同样的,工作头41还可以采取其他形式,譬如是图10a中的磨头,图10c中的砂轮棒等,与前轴42的螺纹421配合固定;或者,工作头41可以是图10b中的砂轮片,图10d中的锯片等,采用螺栓、螺钉等方式与前轴42固定。 In the first embodiment to third embodiment, shown in FIG 1 to 8, i.e., FIG. 41 is a working head drill chuck, designed to clamp the drill bit, to reach the gun drill or drill angle function; Fourth Embodiment the working head 41 is a head screwdriver; Similarly, work head 41 can also take other forms, for example, in Figure 10a is grinding, the grinding wheel 10c in FIG rods, threaded fitting 421 is fixed to the front axle 42; or , working head 41 may be grinding wheel of FIG. 10b, 10d in FIG saw blades, bolts, screws or the like manner as the front axle 42 is fixed. 当然,也并不局限于提到的上述功能。 Of course, it is not limited to the above-mentioned functions. 这样,同一把电动工具只需要更换工作头就能具有不同的功能,而且在狭窄区域内都能实现钻、锯、磨等一系列动作。 In this way, the same power tools only need to replace the working head can have different functions, but also can achieve drilling, sawing, grinding series of moves in a narrow area.

除上述优选实施方案之外,本实用新型尚有多种具体的实施方式。 In addition to the above-described preferred embodiment, the present invention still more specific embodiments. 譬如:在马达壳体1或齿轮箱6内采用多级齿轮传动,而使结构复杂化;或者齿轮箱的锁紧机构采用螺纹或者销钉穿孔之类,而使齿轮箱也能达到旋转的功能,由于结构复杂则不多加描述;或者在齿轮箱所有在工作中未使用的开口上安装一个保护盖,起到保护齿轮箱和美观的作用。 For example: 1 employed in the motor housing or gearbox gear stage more than 6, the complex structure; or locking mechanism or a gear box type threaded pin of perforations, can achieve the function of the gearbox rotates, pay more complicated structure is not described; or a protective cover mounted on the opening in the work of all unused gearbox serves to protect the gearbox and aesthetics. 凡采用等同替换或者等效变换而形成的所有技术方案,均落在本实用新型要求保护的范围之内。 Where the use of all technical equivalents or equivalent transformation scheme formed, are within the scope of the claimed invention.

Claims (14)

1.一种电动工具(10),包括:马达(2),收容马达的马达壳体(1),与马达壳体(1)相连接的齿轮箱(6),以及工作头组件(4),其特征在于:齿轮箱(6)上设置有轴线互成角度的第一开口(61)和第二开口(62),在开口内设置有被马达(2)所驱动的传动组件,工作头组件(4)可选择地插入到其中一个开口中,并与齿轮箱(6)内的传动组件相啮合。 1. A power tool (10), comprising: a motor (2), a motor housing accommodating the motor (1), a gearbox (6) and the motor housing (1) is connected, and the working head assembly (4) characterized in that: the axis is provided with a gear box (6) on a first angled opening (61) and a second opening (62), provided with a motor (2) driven by the drive assembly, the working head within the opening component (4) is selectively inserted into one of the openings in the gear box and the drive assembly (6) engages.
2.根据权利要求1所述的电动工具,其特征在于:马达壳体(1)与齿轮箱(6)之间设有锁紧组件(7),锁紧组件(7)使齿轮箱(6)相对于马达轴线(20)可转动地与马达壳体(1)连接。 The electric power tool according to claim 1, wherein: the locking assembly is provided (7) between the motor housing (1) and gearbox (6), locking member (7) so that the gearbox (6 ) with respect to the motor axis (20) rotatably connected to the motor housing (1).
3.根据权利要求2所述的电动工具,其特征在于:锁紧组件(7)包括锁紧套(70),锁紧套(70)的前端设有凹孔(71),凹孔(71)内放置有滚珠(72)和弹簧(73),弹簧(73)一端抵靠在锁紧套(70)的内壁上,另一端抵靠在滚珠(72)上,齿轮箱(6)的外壳(60)的后端面在圆周方向上排列设置有半圆孔(65),每个半圆孔(65)都可以部分收容凹孔(71)内的滚珠(72)。 The electric tool according to claim 2, wherein: the locking assembly (7) comprises a locking sleeve (70), the front end of the locking sleeve (70) is provided with recesses (71), recesses (71 placing) the balls (72) and a spring (73), a spring (73) one end of the locking sleeve abuts against the inner wall (70), and the other end against a ball (72), a gearbox (6) of the housing (60) of the rear end surface in the circumferential direction are arranged with a semi-circular aperture (65), each semi-circular hole (65) may be partially recessed holes accommodating balls (72) in (71).
4.根据权利要求1至3中所述的任意一种电动工具,其特征在于:所述的传动组件包括被马达(2)所驱动的后轴(3)及与后轴相连的齿轮组件,所述的工作头组件(4)包括前轴(42)及与前轴相连的工作头(41)。 The electric power tool of any one of claim 1 to 3 claims, wherein: said drive assembly includes a motor (2) driven rear axle (3) and a gear assembly connected to the rear axle, the working head assembly (4) comprises a front axle (42) and a working head (41) and the front axle.
5.根据权利要求4所述的电动工具,其特征在于:齿轮箱(6)上的第一开口(61)的中心轴线(611)与马达(2)的马达轴线(20)平行。 The electric tool according to claim 4, wherein: (20) parallel to the first opening (61) on the gearbox (6) the central axis (611) of the motor (2) of the motor axis.
6.根据权利要求5所述的电动工具,其特征在于:前轴(42)上设有外花键(424),后轴(3)上设有内花键(31),当前轴(42)插入到第一开口(61)中,前轴(42)的外花键(424)与后轴(3)的内花键(31)配合传动。 The electric tool according to claim 5, wherein: with external splines (424) on the front axle (42), is provided on the rear axle (3) internal splines (31), this shaft (42 ) is inserted into the first opening (61), the front axle (42) of external splines (424) and the rear axle (3) internal splines (31) mating gear.
7.根据权利要求4所述的电动工具,其特征在于:齿轮箱(6)上的第二开口(62)的中心轴线(621)与马达(2)的马达轴线(20)垂直。 The electric power tool according to claim 4, wherein: the second opening (62) on the gearbox (6) the central axis (621) of the motor (2) of the motor axis (20) perpendicular.
8.根据权利要求7所述的电动工具,其特征在于:所述的齿轮组件包括相互啮合的第一锥齿轮(81)和第二锥齿轮(82),其中,第一锥齿轮(81)的中心轴线(811)与第一开口(61)的中心轴线(611)重合,第二锥齿轮(82)的中心轴线(821)与第二开口(62)的中心轴线(621)重合。 8. The power tool according to claim 7, wherein: said gear assembly comprising a first bevel gear (81) meshing with each other and the second bevel gear (82), wherein the first bevel gear (81) a central axis (811) with a first opening (61) of the central axis (611) coincide, a central axis of the second bevel gear (82) (821) and the second opening (62) (621) coincide.
9.根据权利要求8所述的电动工具,其特征在于:当前轴(42)插入到第二开口(62)中,前轴(42)与第二锥齿轮(82)相配接啮合。 The power tool according to claim 8, wherein: the current axis (42) inserted into the second opening (62), for mating engagement of the front axle (42) and a second bevel gear (82).
10.根据权利要求7所述的电动工具,其特征在于:所述的齿轮组件包括第三锥齿轮(88)及分别与第三锥齿轮(88)啮合的第一锥齿轮(81)和第二锥齿轮(82)。 10. The power tool according to claim 7, wherein: said gear assembly includes a third bevel gear (88) and a first bevel gear, respectively third bevel gear (88) meshing (81) and two bevel gears (82).
11.根据权利要求4所述的电动工具,其特征在于:前轴(42)和工作头(41)之间为螺纹(421)固定连接,前轴(42)上还设有旋紧螺纹用的夹持部(422)。 11. The power tool according to claim 4, characterized in that: between the front (42) and a working head (41) is a thread (421) is fixedly connected, is also provided with threads tightened on the front axle (42) the clamping portion (422).
12.根据权利要求1至3中所述的任意一种电动工具,其特征在于:所述的工作头组件(4)为一单个的工作头(41),所述的传动组件包括被马达(2)所驱动的后轴(3),与后轴相连的齿轮组件以及工作头夹紧件(89)。 12. A power tool according to any one of claim 1 to 3 claims, wherein: said working head assembly (4) is a single working head (41), said drive assembly comprising a motor ( 2) driven rear axle (3), connected to the rear axle, and a gear assembly operating head clamp (89).
13.根据权利要求12所述的电动工具,其特征在于:齿轮箱(6)上的第一开口(61)的中心轴线(611)与马达(2)的马达轴线(20)平行,第二开口(62)的中心轴线(621)与马达(2)的马达轴线(20)垂直,所述的工作头夹紧件(89)设于第一开口(61)中并与后轴(3)固定连接,所述的工作头(41)可以插入到工作头夹紧件(89)内并与之配接。 13. The power tool of claim 12, wherein: (20) parallel to the first opening (61) on the gearbox (6) the central axis (611) of the motor (2) of the motor axis, the second an opening (62) of the central axis of the motor axis (621) of the motor (2) (20) perpendicular to the first opening provided in the member (89) in said work head clamp (61) and rear axle (3) fixedly connected to the working head (41) may be inserted into the working head within the clamping member (89) and mating therewith.
14.根据权利要求13所述的电动工具,其特征在于:所述的齿轮组件包括相互啮合的第一锥齿轮(81)和第二锥齿轮(82),有一工作头夹紧件(89)处于第二开口(62)内配接于第二锥齿轮(82),所述的后轴(3)配接于第一锥齿轮(81)上,所述的工作头(41)可以插入到工作头夹紧件(89)内并与之配接。 The power tool according to claim 13, wherein: said gear assembly comprising a first bevel gear (81) meshing with each other and the second bevel gear (82), a working head clamp (89) is within the second opening (62) connected with the second bevel gear (82), said rear axle (3) connected with the first bevel gear (81), said working head (41) can be inserted and mating with the working head clamp (89).
CN 200620170754 2006-12-19 2006-12-19 Electric tool CN200991885Y (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101204803B (en) * 2006-12-18 2012-10-24 苏州宝时得电动工具有限公司 Electric tools
CN102049549B (en) * 2009-10-27 2013-03-06 苏州宝时得电动工具有限公司 Drilling tool
WO2013127331A1 (en) * 2012-03-02 2013-09-06 Bosch Power Tools (China) Co., Ltd. Power tool and transmission thereof
CN103586846A (en) * 2012-08-16 2014-02-19 苏州宝时得电动工具有限公司 Power tool and operation method for changing working head of power tool
WO2018082717A1 (en) * 2016-11-01 2018-05-11 苏州宝时得电动工具有限公司 Power tool and method for operation thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101204803B (en) * 2006-12-18 2012-10-24 苏州宝时得电动工具有限公司 Electric tools
CN102049549B (en) * 2009-10-27 2013-03-06 苏州宝时得电动工具有限公司 Drilling tool
WO2013127331A1 (en) * 2012-03-02 2013-09-06 Bosch Power Tools (China) Co., Ltd. Power tool and transmission thereof
CN103291844A (en) * 2012-03-02 2013-09-11 博世电动工具(中国)有限公司 Electric tool and transmission device thereof
CN103586846A (en) * 2012-08-16 2014-02-19 苏州宝时得电动工具有限公司 Power tool and operation method for changing working head of power tool
CN105033958A (en) * 2012-08-16 2015-11-11 苏州宝时得电动工具有限公司 Power tool and operation method for exchanging same
CN103586846B (en) * 2012-08-16 2015-11-25 苏州宝时得电动工具有限公司 The method of operating of power tool and this power tool working head of replacing
CN105033958B (en) * 2012-08-16 2016-11-30 苏州宝时得电动工具有限公司 Power tool and the operational approach of replacing this power tool work head
WO2018082717A1 (en) * 2016-11-01 2018-05-11 苏州宝时得电动工具有限公司 Power tool and method for operation thereof

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