CN104227666A - Electric hammer - Google Patents

Electric hammer Download PDF

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Publication number
CN104227666A
CN104227666A CN 201310245665 CN201310245665A CN104227666A CN 104227666 A CN104227666 A CN 104227666A CN 201310245665 CN201310245665 CN 201310245665 CN 201310245665 A CN201310245665 A CN 201310245665A CN 104227666 A CN104227666 A CN 104227666A
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CN
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Prior art keywords
hammer
rod
head
electric
protrusion
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CN 201310245665
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Chinese (zh)
Inventor
陆巧男
段家利
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苏州宝时得电动工具有限公司
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Abstract

The invention discloses an electric hammer. An eccentric protrusion block is arranged on a driving wheel to drive a hammer rod on an impact component, the hammer rod is enabled to overcome the acting force of a flexible element to axially deviate relative to a hammer head, and when a certain distance between the hammer rod and the hammer head is formed, the protrusion block is separated from the hammer rod to enable the hammer rod to quickly move toward the hammer head under the acting force of the flexible element and impact on the hammer head to realize hammering. The electric hammer is simple and compact in structure, portable and convenient for users to use and carry.

Description

—种电动榔头 - kinds of electric hammer

[0001] [0001]

技术领域 FIELD

[0002] 本发明涉及一种电动榔头。 [0002] The present invention relates to an electric hammer.

[0003] [0003]

背景技术 Background technique

[0004] 电动榔头是一种常见的手持式电动工具,其从结构上一般包括电机、由电机驱动的冲击轮、击打轴、安装在击打轴上的锤杆,通过冲击轮与击打轴的配合实现锤杆的冲击动作。 [0004] The electric hammer is a common hand-held power tool, which generally includes a motor from the structure, the striking wheel driven by the motor, the striking rod, mounted in the hammer striking the shaft, and by the impact of the striking wheel achieved with the axis of the hammer striking movement. 现有技术中,电动榔头在结构上的设计多种多样,但大多存在结构复杂、整机笨重等缺点,造成其使用与携带都很不方便。 Art, design electric hammer diverse in structure, but mostly there are complex structures, heavy machine and other shortcomings, cause it is very inconvenient to use and carry.

[0005] [0005]

发明内容 SUMMARY

[0006] 本发明的目的是提供一种结构简单且可方便使用、携带的电动榔头。 [0006] The object of the present invention is to provide a simple structure and is easy to use, portable electric hammer.

[0007] 为达到上述目的,本发明采用的技术方案是:一种电动榔头,包括具有内腔的机壳、可绕轴心线旋转地设于所述机壳内的驱动轮、用于驱动所述驱动轮旋转的电机,所述电动榔头还包括设于所述机壳上的冲击组件,所述冲击组件包括可相对所述机壳沿轴向滑动的锤头、可相对所述机壳沿轴向滑动并驱动所述锤头滑动的锤杆,所述锤头、所述锤杆的轴心线相互平行设置且所述锤杆、所述锤头的轴心线均与所述驱动轮的轴心线相垂直,所述机壳的内腔中设有能够提供所述锤杆沿轴向弹性回复力的弹性元件,所述锤杆上远离所述锤头的端部上具有一挡块,所述驱动轮上设有凸台,所述凸台的轴心线与所述驱动轮的轴心线相偏尚,所述电动榔头具有冲击状态和非冲击状态,当所述电动榔头处于非冲击状态时,所述凸台抵挡在所述挡块上,所述弹性元件 [0007] To achieve the above object, the technical solution adopted by the invention is: an electric hammer, comprising a housing having a lumen, rotatable about the axis of rotation of the drive wheel disposed within the housing, for driving the the motor rotates the drive wheel, the electric hammer assembly further comprises an impact disposed on said housing, said impact assembly comprises axially slidable relative to the hammer housing, movable relative to the housing slide axially and drives the slide hammer hammer rod, the hammer, the hammer axis of said rod disposed parallel to each other and the hammer rod, the axis of the hammer driving both the perpendicular to the axis of the wheel, said cavity housing a resilient member can be provided in the axial direction of the hammer elastic restoring force, the upper end portion of the hammer away from the hammer rod having a stopper, the axis of the drive wheel is provided with a boss, the boss and the axis of the drive wheel is still partial phase, the electric hammer having an impact and non-impact state state, when the electric when the hammer is in a non-impact state, the bosses resist on said stopper, said elastic member 压缩,所述锤杆沿轴向远离所述锤头的方向移动;当所述电动榔头处于冲击状态时,所述凸台与所述挡块相脱离,所述弹性元件被释放,所述锤杆沿轴向并朝所述锤头的方向移动,所述锤头的外端露出在所述机壳外部进行锤击。 Compressing the hammer rod in the axial direction of moving away from the hammer; when the hammer is in electric shock state, and the boss is disengaged from the stopper, the elastic member is released, the hammer and axially moving the rod in the direction of the hammer, the hammer is exposed outer end of hammering in the outside of the cabinet.

[0008] 优选地,所述锤头的轴心线与所述锤杆的轴心线沿同一直线方向延伸。 [0008] Preferably, the axis of the hammer and the hammer axis of said rod extends along the same linear direction.

[0009] 优选地,所述凸台为偏心轮,所述偏心轮的轴心线与所述驱动轮的轴心线相互平行设置,且所述偏心轮的轴心线与所述驱动轮的轴心线相偏离。 [0009] Preferably, the boss is eccentric axis of the eccentric shaft axis of the drive wheels arranged parallel to each other, and the axis of the eccentric of the drive wheel offset from the axis line.

[0010] 优选地,所述冲击组件还包括固定地设于所述机壳内腔中的锤套,所述锤套上开设有沿长度方向贯穿的通孔,所述锤头、所述锤杆能够沿轴向滑移地穿设在所述通孔中,所述锤头的周向上具有一凸缘,所述锤套上开设有一与所述通孔的孔腔相连通的凹槽,所述凸缘能够沿所述锤头的轴向滑移地收容在所述凹槽中。 [0010] Preferably, the assembly further comprises a shock fixedly disposed in the housing lumen sheath hammer, the hammer sleeve defines a through hole penetrating in the longitudinal direction of the hammer, the hammer lever is slidably disposed axially through the through hole, the hammer circumferential flange having a direction, said hammer and said sleeve defines a bore through hole communicating groove, the collar can be slidably housed in the groove axial direction of the hammer bit.

[0011] 作为一种具体的实施方式,所述锤套上远离所述锤头的端部上设有第一限位面,所述锤杆上具有第二限位面,所述弹性元件套设在所述锤杆上,所述弹性元件的两端分别抵触在所述第一限位面、所述第二限位面上。 [0011] As a specific embodiment, the sleeve remote from the hammer stopper surface provided on the first end portion of the hammer, the hammer stopper rod having a second surface, said elastic sleeve member provided in the hammer rod, both ends of the elastic element abut against the first limiting surface, the second limiting surface.

[0012] 作为一种具体的实施方式,所述弹性元件为弹簧。 [0012] As a specific embodiment, the elastic member is a spring.

[0013] 进一步优选地,所述锤杆呈阶梯轴状,所述锤杆具有大轴径端和小轴径端,所述大轴径端与小轴径端形成所述第二限位面,所述锤套上所述通孔的一端口部与所述小轴径端相匹配,所述锤套的端部侧壁形成所述第一限位面。 [0013] Further preferably, the stepped shaft shape hammer rod, said rod having a hammer end and a small diameter shaft end of the shaft diameter, shaft diameter of the large end and the small end of the shaft diameter of the second stop surface is formed the hammer is a through hole of said sleeve portion and said small shaft diameter port mating end, an end portion of the side wall of the hammer sleeve forming the first stop surface.

[0014] 作为一种具体的实施方式,所述大轴径端与所述锤头相邻设置,所述挡块固设在所述小轴径端穿出所述通孔的端部上,所述大轴径端、所述弹性元件收容在所述通孔的孔腔中。 [0014] As a specific embodiment, the diameter shaft end disposed adjacent to the hammer, the stopper is fixed on the end of the piercing end of the small shaft diameter of the through hole, the diameter shaft end of the elastic element received in the through bore hole.

[0015] 优选地,所述机壳上还设有用于控制所述电机通电状态的开关。 [0015] Preferably, also provided with a switch for controlling the energization state of the motor housing.

[0016] 由于上述技术方案的运用,本发明与现有技术相比具有下列优点:本发明的一种电动榔头,其中通过在驱动轮上设置一偏心的凸块来驱动冲击组件上的锤杆,使其克服弹性元件的作用力相对锤头沿轴向发生偏离,当锤杆与锤头相距一定距离后,凸块与锤杆相脱离使得锤杆在弹性元件的作用力下朝着锤头快速移动并对锤头产生撞击而实现锤击加工,该电动榔头的结构简单紧凑,整机轻便,使得用户可方便地使用和携带。 [0016] As the use of the above-described aspect of the present invention compared with the prior art has the following advantages: An electric hammer according to the present invention, wherein the driven assembly of the hammer on the impact by providing a projection on the eccentric drive wheel so as to overcome the biasing force of the elastic member are offset relative to the striker in the axial direction occurs, and when the hammer at a distance from the hammer, and the hammer rod protrusion is disengaged from the hammer so that the hammer toward under the force of the resilient element and rapidly moving hammer to generate the impact hammer to achieve processing of the electric hammer structure simple and compact, lightweight machine, so that the user can conveniently carry and use.

[0017] [0017]

附图说明 BRIEF DESCRIPTION

[0018] 附图1为本发明的电动榔头的主视图的局部剖视示意图; [0018] partial front view of an electric hammer of Figure 1 a schematic cross-sectional view of the present invention;

附图2为本发明的电动榔头上冲击组件工作原理示意图一; A schematic view of an impact on an electric hammer assembly principle Fig. 2 of the present invention;

附图3为本发明的电动榔头上冲击组件工作原理示意图二; A schematic view of two electric impact hammer assembly principle Fig. 3 of the present invention;

附图4为本发明的电动榔头上冲击组件工作原理示意图三; Schematic three impact hammer assembly on the principle of the present invention, the electric Figure 4;

附图5为本发明的电动榔头上冲击组件工作原理示意图四。 Schematic diagram of four impact assembly on an electric hammer Figure 5 of the present invention.

[0019] [0019]

具体实施方式 detailed description

[0020] 下面结合附图和具体的实施例来对本发明的技术方案作进一步的阐述。 Drawings and specific embodiments be further described technical solution of the present invention [0020] The following binding.

[0021] 参见图1所示的电动榔头,该电动榔头包括具有内腔的机壳I,机壳I的内腔中设有电机6、通过传动机构2与电机6的输出轴传动连接的驱动轮3,机壳I上还设有用于控制电机6得电状态的开关7。 Electric hammer shown in [0021] Referring to Figure 1, the electric hammer includes a housing having a lumen I, I of the lumen of the housing is provided with a motor 6, driven by an output shaft connected to the transmission gear mechanism 2 and the motor 6 wheel 3 is also provided with a switch for controlling the state of the motor 6 is energized to the casing 7 I. 传动机构2可为多个减速齿轮,以满足驱动轮3的转速需求。 A transmission mechanism 2 may be a plurality of reduction gears, the drive wheel 3 in order to meet the needs of the rotational speed.

[0022] 参见图1〜5所示,该电动榔头还包括设于机壳I上的冲击组件5,该冲击组件5包括锤套51、用于锤击的锤头52以及用于驱动锤头52产生锤击的锤杆53。 [0022] Referring to Figure 1 ~ 5, which further comprises a motor disposed in the impact hammer assembly 5 on the case I, the impact hammer assembly 5 comprises a sleeve 51, a hammer for driving the hammer 52 and hammer hammering the hammer 52 generates the rod 53. 锤套51固定地设置在机壳I的内腔中,锤套51上开设有沿长度方向贯穿的通孔,锤头52、锤杆53能够沿轴向滑移地穿设在上述通孔中,锤头52、锤杆53的轴心线沿同一直线方向分布,且两者的轴心线与驱动轮3的轴心线垂直设置。 Hammer sleeve 51 is fixedly disposed in the interior of the cabinet I, defines a through hole penetrating in the longitudinal direction of the sleeve 51 on the hammer, the hammer 52, the hammer 53 can be slidably disposed through the through hole in the axial direction , hammer 52, the axis of the hammer 53 in the same linear direction distribution, and both of the drive wheels and the axis line perpendicular to the axis 3 is provided. 锤头52的周向上具有一凸缘57,锤套51上开设有一凹槽56,该凹槽56与锤套51上的通孔孔腔相连通,凸缘57能够沿着锤头52的轴向滑移地收容在凹槽56中,这样可以对锤头52在通孔中滑移的行程进行限位。 Week hammer 52 has a flange 57 upwardly, defines a groove 56 on the hammer sleeve 51, the through hole of the bore in the sleeve groove 56 and the hammer 51 are connected through the flange 57 movable along the axis of the hammer 52 in the recess 56, so that the hammer 52 may be of the slip stopper in the through hole slidably receiving the stroke. 设置时,可在锤头52朝向锤杆53的端部上设置环形凸缘,对应地,凹槽56也设置为环形凹槽,这样锤头52的加工较方便且能够在锤头52滑移时提供其良好的导向,凹槽56沿锤头52轴向的长度即为锤头52锤击时的行程。 When set, the striker 52 may be disposed toward the upper end of the annular flange portion 53 of the striker bars, correspondingly, recess 56 is also provided an annular groove, so that the hammer 52 is more convenient processing and can slide in the hammer 52 providing good guidance thereof, the stroke length of the groove 56 along the axial direction of the hammer 52 when the hammer 52 is the hammer.

[0023] 参见图1〜5所示,机壳I的内腔中还设有能够提供锤杆53沿轴向的弹性回复力的弹性元件,这里采用的是弹簧55,弹簧55套设在锤杆53上,锤套51的一端设有第一限位面,锤杆53上具有第二限位面,弹簧55的两端分别抵触在第一限位面和第二限位面上。 [0023] Referring to FIG. 1 ~ 5, the inner cavity of the housing is also provided with I the elastic member 53 can be provided along the axial direction of the hammer elastic restoring force of the spring 55 used here, the hammer spring 55 provided in the sleeve rod 53, one end of the hammer stopper sleeve 51 is provided with a first surface, the hammer has a second stop surface 53, both ends of the spring 55 abut against the first stop surface and second stop surfaces. 设置时刻将锤杆53设置为阶梯轴状,锤杆53具有大轴径端和小轴径端,在大轴径端与小轴径端便形成第二限位面,锤套53上通孔的一端口部与小轴径端相匹配,锤杆53的小轴径端穿过该口部,锤套53的该端部侧壁便形成第一限位面,在这里,大轴径端收容在锤套51的通孔孔腔中且与锤头52相邻设置,小轴径端部分收容在通孔孔腔中,弹簧55套设在小轴径端位于通孔孔腔中的部分上。 The setting time of the hammer 53 is provided a stepped shaft shape 53 having a shaft diameter and a small diameter shaft end side, they form the second stop surface and the end of the small diameter shaft end of the shaft diameter, the sleeve 53 through hole hammer of the hammer a port portion of the mating end and the small shaft diameter, shaft diameter end of the small rod 53 of the hammer through the opening portion, the end portion of the sidewall 53 of the hammer sleeve will form a first stop surface, here, a large shaft diameter end the housing 52 and is provided adjacent to the through hole hammer in a hammer sleeve bore 51, a small shaft diameter end portion received in the through hole bore, the spring 55 is sleeved in a small shaft diameter end bore portion positioned in the through hole on.

[0024] 参见图1〜5所示,锤杆53穿出锤套51通孔的端部上具有一挡块54,该挡块54可与锤杆53 —体设置,也可通过焊接等工艺固定连接在锤杆53的上述端部上。 [0024] Referring to Figure 1 ~ 5, the hammer 53 on the end portion of the hammer piercing sleeve through hole 51 having a stopper 54, the stopper 53 and the hammer 54 - body is provided, by welding or the like process may be fixedly attached to said end portion of the hammer 53. 驱动轮3上设有一凸台4,该凸台4的轴心线与驱动轮3的轴心线相偏离,在驱动轮3旋转至一定位置区间时,凸台4能够抵触在挡块54上并推动挡块3发生移动,从而拉动锤杆53沿轴向并远离锤头52的方向发生移动,而当驱动轮3旋转至上述位置区间外,凸台4便与挡块54相脱离。 4 is provided with a drive wheel on the bosses 3, the projection 4 and the axis of the drive wheel offset from the axis 3, when the drive wheel 3 is rotated to a certain position of the segment, the boss 4 can conflict on the stopper 54 and pushing the stopper 3 moves, thereby pulling the hammer 53 in the axial direction and away from the hammer 52 moves, and when the drive wheel 3 rotates to the position outside the range, the boss 4 and the stopper 54 will be disengaged. 设置时,可将凸台4设置为一偏心轮,偏心轮的轴心线偏离驱动轮3的轴心线且与驱动轮3的轴心线相互平行,由于偏心轮的周向为圆弧面,在偏心轮与挡块54相抵触并随驱动轮3旋转的过程中平稳地推动挡块54前行。 When set, the boss 4 can be arranged as a cam, the eccentric offset from the axis of the drive wheel 3 and the axis of the drive wheel and the axis 3 parallel to each other, due to the eccentric circumferential surface of an arc in the stopper 54 with the eccentric and incompatible with the drive wheels 3 during rotation smoothly pushed forward stopper 54.

[0025] 这样,该电动榔头在使用时,初始状态下,如图2所示,首先将锤头52对准待锤击的物体,在压力的作用下锤头52被推至环形凸缘57在环形凹槽56中靠近锤杆53的槽壁上,这时电机6工作驱动轮3逆时针旋转,偏心轮4随之绕驱动轮3的轴心线旋转;当偏心轮4旋转至如图3的位置时,偏心轮4抵触在挡块54上,随着驱动轮3的不断旋转,偏心轮4推动挡块54并克服弹簧55的弹性作用力沿轴向移动,锤杆53随之沿轴向远离锤头52的方向移动;当驱动轮3旋转至如图4所示的位置处时,锤杆53到达极限位置,此时锤杆53的大轴径端与锤头52相距一定的距离;当驱动轮3继续旋转,偏心轮4便与挡块54相脱离,这时压缩的弹簧55被释放,在弹簧55弹性力的作用下,锤杆53沿轴向朝着锤头52的方向快速移动,锤杆53撞击到锤头52上快速推出锤头52,使得锤头52的端部撞击在待锤击的物 [0025] Thus, in use of the electric hammer, in the initial state, shown in Figure 2, the first object to be aligned with the striker hammer 52, the hammer 52 is pushed to the annular flange 57 under the action of pressure in the annular groove 56 near the groove wall of the hammer 53, when the motor 6 operates the drive wheel 3 is rotated counterclockwise, the drive wheel about the eccentric 4 along the axis of rotation 3; when the rotation of the eccentric wheel 4 to FIG. 3 position of the eccentric 4 conflict on the stopper 54, continued rotation of the drive wheel 3 with the eccentric 4 and push the stopper 54 against the elastic force of the spring 55 is moved axially along the hammer 53 will axial movement away from the striker 52; and when the drive wheel 3 is rotated to a position shown in Figure 4, the hammer 53 reaches the limit position where the rod diameter shaft end of the hammer 53 and the hammer 52 a certain distance distance; 3 continues to rotate when the drive wheel, the eccentric wheel 4 will be disengaged from the stopper 54, then the compressed spring 55 is released, under the action of the elastic force of the spring 55, 53 in the axial direction of the hammer 52 toward the hammer fast moving direction, the hammer 53 strikes the hammer 52 on the hammer Quick Release 52, so that the end portion of the striker hammer 52 impinges the object to be 上形成对待锤击物体的冲击。 Shock treatment hammering formed object. 该电动榔头结构简单紧凑,整机轻便,使得用户可方便地使用和携带。 Simple and compact structure of the electric hammer, the whole light, so that the user can conveniently carry and use.

[0026] [0026]

上述实施例只为说明本发明的技术构思及特点,其目的在于让熟悉此项技术的人士能够了解本发明的内容并加以实施,并不能以此限制本发明的保护范围,凡根据本发明精神实质所作的等效变化或修饰,都应涵盖在本发明的保护范围内。 To illustrate the above embodiments technical concept and features of the invention, the purpose is to just let the person skilled in the art to understand the content of the invention and implemented, and thus can not limit the scope of the present invention, where the spirit of this invention equivalent variations or modifications made by the substantive, should fall within the scope of the present invention.

Claims (9)

  1. 1.一种电动榔头,包括具有内腔的机壳、可绕轴心线旋转地设于所述机壳内的驱动轮、用于驱动所述驱动轮旋转的电机,所述电动榔头还包括设于所述机壳上的冲击组件,其特征在于:所述冲击组件包括可相对所述机壳沿轴向滑动的锤头、可相对所述机壳沿轴向滑动并驱动所述锤头滑动的锤杆,所述锤头、所述锤杆的轴心线相互平行设置且所述锤杆、所述锤头的轴心线均与所述驱动轮的轴心线相垂直,所述机壳的内腔中设有能够提供所述锤杆沿轴向弹性回复力的弹性元件,所述锤杆上远离所述锤头的端部上具有一挡块,所述驱动轮上设有凸台,所述凸台的轴心线与所述驱动轮的轴心线相偏离,所述电动榔头具有冲击状态和非冲击状态,当所述电动榔头处于非冲击状态时,所述凸台抵挡在所述挡块上,所述弹性元件被压缩,所述锤杆沿轴向远离所述锤 An electric hammer, comprising a housing having a lumen, may be provided around the axis of rotation of the drive wheels in the enclosure, a drive motor for rotating the drive wheel, the electric hammer further comprising impact assembly disposed on the housing, wherein: said housing assembly includes a shock axially slidable relative to the hammer, may be axially slidable relative to said housing and drives said hammerhead sliding the hammer, the hammer, the hammer axis of said rod disposed parallel to each other and the hammer rod, the axis of the hammer and the drive wheels are perpendicular to the shaft axis, said housing provided with a lumen capable of providing the elastic member in the axial direction of the hammer elastic restoring force, having an upper end portion of the stopper rod hammer away from the hammer, the drive wheel is provided with axis of the boss, the boss and the drive wheel offset from the axis of the electric hammer having an impact and non-impact state state, when the hammer is in a non-electric shock state, the boss resist on said stopper, said elastic member being compressed, the hammer rod in the axial direction away from the hammer 的方向移动;当所述电动榔头处于冲击状态时,所述凸台与所述挡块相脱离,所述弹性元件被释放,所述锤杆沿轴向并朝所述锤头的方向移动,所述锤头的外端露出在所述机壳外部进行锤击。 Moving direction; and when the hammer is in electric shock state, and the boss is disengaged from the stopper, the elastic member is released, and the hammer rod in the axial direction of the hammer movement, the outer end of the hammer head is exposed at the outside of the cabinet hammering.
  2. 2.根据权利要求1所述的一种电动榔头,其特征在于:所述锤头的轴心线与所述锤杆的轴心线沿同一直线方向延伸。 2. A power hammer according to claim 1, wherein: said hammer axis of the shaft axis of the striker bars extending in a straight line along the same direction.
  3. 3.根据权利要求1所述的一种电动榔头,其特征在于:所述凸台为偏心轮,所述偏心轮的轴心线与所述驱动轮的轴心线相互平行设置,且所述偏心轮的轴心线与所述驱动轮的轴心线相偏离。 3. A power hammer according to claim 1, wherein: the boss is eccentric, the eccentric axis of the drive wheel and the axis parallel to each other, and the and the eccentric axis of the drive wheel offset from the axis line.
  4. 4.根据权利要求1所述的一种电动榔头,其特征在于:所述冲击组件还包括固定地设于所述机壳内腔中的锤套,所述锤套上开设有沿长度方向贯穿的通孔,所述锤头、所述锤杆能够沿轴向滑移地穿设在所述通孔中,所述锤头的周向上具有一凸缘,所述锤套上开设有一与所述通孔的孔腔相连通的凹槽,所述凸缘能够沿所述锤头的轴向滑移地收容在所述凹槽中。 4. A power hammer according to claim 1, wherein: said assembly further comprises a shock fixedly disposed in the housing lumen sheath hammer, the hammer sleeve defines a longitudinal direction through a through hole, the hammer, the hammer rod is slidably disposed in the axial direction through the through hole, the hammer circumferential flange having a direction, the hammer and the sleeve defines a said through-hole bore communicating groove, the flange is an axial direction of the hammer bit slidably accommodated in said groove.
  5. 5.根据权利要求4所述的一种电动榔头,其特征在于:所述锤套上远离所述锤头的端部上设有第一限位面,所述锤杆上具有第二限位面,所述弹性元件套设在所述锤杆上,所述弹性元件的两端分别抵触在所述第一限位面、所述第二限位面上。 5. A power hammer according to claim 4, wherein: said hammer is provided with a first sleeve on the end remote from the stopper surface of the hammer, the hammer stopper rod having a second surface of the elastic sleeve member disposed in said hammer rod, both ends of the elastic element abut against the first limiting surface, the second limiting surface.
  6. 6.根据权利要求1或5所述的一种电动榔头,其特征在于:所述弹性元件为弹簧。 6. A power hammer according to claim 1 or claim 5, wherein: said elastic member is a spring.
  7. 7.根据权利要求5所述的一种电动榔头,其特征在于:所述锤杆呈阶梯轴状,所述锤杆具有大轴径端和小轴径端,所述大轴径端与小轴径端形成所述第二限位面,所述锤套上所述通孔的一端口部与所述小轴径端相匹配,所述锤套的端部侧壁形成所述第一限位面。 7. A power hammer according to claim 5, wherein: said stepped shaft shape of the hammer, the hammer rod having a large end and a small shaft diameter shaft diameter end, said large end and a small shaft diameter shaft diameter of the second end of the stopper surface is formed, the hammer a sleeve port portion of the through hole of the mating end of the small shaft diameter, an end portion of the side wall of the sleeve forming the first weight limit planes.
  8. 8.根据权利要求7所述的一种电动榔头,其特征在于:所述大轴径端与所述锤头相邻设置,所述挡块固设在所述小轴径端穿出所述通孔的端部上,所述大轴径端、所述弹性元件收容在所述通孔的孔腔中。 8. A power hammer according to claim 7, wherein: said diameter shaft end disposed adjacent to the hammer, the stopper is fixed in said piercing end of said small shaft diameter an end portion of the through hole, the diameter shaft end of the elastic element received in the through bore hole.
  9. 9.根据权利要求1所述的一种电动榔头,其特征在于:所述机壳上还设有用于控制所述电机通电状态的开关。 9. A power hammer according to claim 1, wherein: said switch is further provided for controlling the energization state of the motor housing.
CN 201310245665 2013-06-20 2013-06-20 Electric hammer CN104227666A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2026370A (en) * 1978-03-29 1980-02-06 Dobson Park Ind Percussive tools
CN1333111A (en) * 2000-07-18 2002-01-30 希尔蒂股份公司 Electric and appliance with electric/pneumatic impact machine
US20050247462A1 (en) * 2004-05-07 2005-11-10 Gerhard Meixner Hand machine tool with a hammer mechanism
EP2283978A2 (en) * 2009-08-13 2011-02-16 Robert Bosch GmbH Hand tool machine apparatus
CN102470521A (en) * 2009-07-03 2012-05-23 罗伯特·博世有限公司 Hand-held power tool
CN102950580A (en) * 2011-08-26 2013-03-06 喜利得股份公司 Hand-held tool machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2026370A (en) * 1978-03-29 1980-02-06 Dobson Park Ind Percussive tools
CN1333111A (en) * 2000-07-18 2002-01-30 希尔蒂股份公司 Electric and appliance with electric/pneumatic impact machine
US20050247462A1 (en) * 2004-05-07 2005-11-10 Gerhard Meixner Hand machine tool with a hammer mechanism
CN102470521A (en) * 2009-07-03 2012-05-23 罗伯特·博世有限公司 Hand-held power tool
EP2283978A2 (en) * 2009-08-13 2011-02-16 Robert Bosch GmbH Hand tool machine apparatus
CN102950580A (en) * 2011-08-26 2013-03-06 喜利得股份公司 Hand-held tool machine

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