WO2010072168A1 - 电磨 - Google Patents

电磨 Download PDF

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Publication number
WO2010072168A1
WO2010072168A1 PCT/CN2009/076015 CN2009076015W WO2010072168A1 WO 2010072168 A1 WO2010072168 A1 WO 2010072168A1 CN 2009076015 W CN2009076015 W CN 2009076015W WO 2010072168 A1 WO2010072168 A1 WO 2010072168A1
Authority
WO
WIPO (PCT)
Prior art keywords
brush
output shaft
housing
electric grinder
novel electric
Prior art date
Application number
PCT/CN2009/076015
Other languages
English (en)
French (fr)
Inventor
袁绪鹏
Original Assignee
上海卓特工具有限公司
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 上海卓特工具有限公司 filed Critical 上海卓特工具有限公司
Priority to JP2011522377A priority Critical patent/JP5398834B2/ja
Publication of WO2010072168A1 publication Critical patent/WO2010072168A1/zh

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Classifications

    • 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
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion

Definitions

  • the invention relates to the technical field of electric tools, in particular to the field of electric grinder technology, in particular to a new electric grinder, which is driven by a planetary gear.
  • the traditional working mode of this type of electric grinder is: the rotary motion of the motor passes through the coupling to the output shaft, and the flowering chuck is mounted on the output shaft, and the grinding head is mounted on the flowering chuck, so that the motor drives the grinding head to rotate, and
  • the rotation speed and direction of the motor are exactly the same as the rotation speed and rotation direction of the grinding head.
  • the grinding torque is directly obtained by the main shaft of the single-phase series motor driven by the coupling.
  • This structure that uses the armature to directly drive the grinding head rotates not only with high speed (28,000 ⁇ 32000 rpm), but also vibration and noise, which is not conducive to the service life of grinding and polishing consumables, and also has a very long service life for the motor. The impact is large, and the operation is inconvenient.
  • the electronic speed regulation structure can only be used to adjust the rotation speed, so that the temperature rise is high, and the torque is also affected, and it is not economical.
  • the object of the present invention is to overcome the above disadvantages of the prior art and to provide a novel electric grinder which is convenient to use, greatly reduces vibration and noise, enhances the stability of the whole machine, and prolongs the motor, especially The life of the consumables is compact and compact.
  • a novel electric grinder of the present invention has the following constitution:
  • the novel electric grinder includes a housing, an output shaft, and a driving mechanism fixed to the housing, the output shaft is rotatably fixed in the housing, and the output shaft includes a first end and a second end
  • the drive mechanism includes a drive shaft, the main feature of which further includes a planetary gear mechanism, the planetary gear mechanism being located in the outer casing and engaging the outer casing, the drive shaft passing through the planetary gear mechanism and the first end portion Connecting for driving the output shaft to rotate, the planetary gear mechanism includes a gear carrier, an idler gear and a gear pin, wherein the gear carrier is coupled to the idler gear through the gear pin, and the idler teeth respectively mesh The housing and the drive shaft, the gear carrier is coupled to the first end.
  • the first end portion is provided with a first external spline
  • the gear carrier is provided with a first internal spline
  • the first external spline engages the first internal spline
  • the drive shaft is provided with a second external spline to engage the idler teeth by the second external spline.
  • the drive shaft is located in the gear carrier.
  • a collet and a collet nut grinding head the second end having an inner bore and an outer thread, the collet being located in the inner bore, the collet nut engaging the outer thread The collet is confined in the inner bore.
  • the output shaft penetrating the first bearing and the second bearing and the first
  • the bearing and the second bearing are fixed, and the dam is fixed on the output shaft for limiting the first bearing and the second bearing.
  • an internal ring gear is further included, the inner ring gear being fixed in the outer casing, and the planetary gear mechanism engaging the inner ring gear to indirectly engage the outer casing through the inner ring gear.
  • the driving mechanism is a motor
  • the motor includes a housing, a brush mechanism, a stator and a rotor
  • the housing is fixed to the housing
  • the stator is fixed in the housing
  • the driving The shaft is the rotor
  • the rotor is located in the stator and is rotatably fixed in the housing
  • the brush mechanism is located in the housing and is electrically connected to the rotor.
  • the brush mechanism comprises a brush, a brush copper spring, a brush cap, a brush holder and a brush holder copper lining, the brush holder being fixed in the housing and located in the brush cap, a brush holder copper liner is located in the brush holder and is electrically connected to the rotor through the brush holder, the brush and the brush copper spring are located in the brush holder copper lining, the electricity Both ends of the brush copper spring abut against the brush and the brush cap, respectively.
  • the drive shaft and the output shaft operate in a straight line state.
  • the output shaft has a rotational speed of 600 to 10,000 revolutions per minute.
  • the output shaft has a rotational speed of 6000 to 8000 revolutions per minute.
  • the torque of the output shaft can be increased by 10 to 100 times under the same input power.
  • the present invention connects the drive mechanism and the output shaft through a planetary gear mechanism.
  • the same motor can only obtain the required speed and direction of rotation by changing the planetary gear mechanism, and the speed can be slowed down (600 ⁇ 10000 rpm).
  • the best condition is usually 6000 ⁇ 8000 rpm)
  • increase the output torque the output shaft torque can be increased by 10 ⁇ 100 times under the same input power, so that you can use large-size consumables, greatly reduced Small vibration and noise, enhance the stability of the whole machine, and extend the service life of the motor, especially the consumables.
  • the use of consumables generally requires a speed of 3000 ⁇ 10000 rpm, the temperature of the workpiece can be prevented from being too high during the grinding process. Achieve the best results of grinding, can be used in polishing, grinding, grinding and other fields;
  • the outer tapered surface of the collet of the present invention cooperates with the inner tapered hole of the output shaft, and has the functions of increasing the driving force and the switching driving force as the clamping force of the workpiece, and at the same time obtaining the minimum moment of inertia of the machine during operation. .
  • the driving shaft and the output shaft of the invention work in a straight line state, can reduce the volume of the body, have good visual effect and convenient operation; the dam on the output shaft can prevent the axial movement of the gear socket, thereby improving the Operational.
  • the copper inner lining of the brush holder of the present invention contacts the brush and the rotor to make it conductive. This function avoids the life impact of the traditional wire on the brush, and the use of the copper lining of the brush holder can delay the temperature of the brush too high. The brush grip is deformed so as to avoid affecting the free expansion and contraction of the brush.
  • Figure 1 is a partial cross-sectional view showing a specific embodiment of a novel electric grinder of the present invention.
  • Fig. 2 is a partial cross-sectional view showing the assembly structure of the collet, the collet nut, the output shaft, the first bearing, the second shaft and the dam according to a specific embodiment of the novel electric grinder of the present invention.
  • FIG 3 is a partial structural schematic view of a rotor of a specific embodiment of the novel electric grinder of the present invention.
  • FIG. 4 is a cross-sectional view of a brush mechanism of a specific embodiment of the novel electric grinder of the present invention.
  • Figure 5 is another partial cross-sectional view of a particular embodiment of the novel electric grinder of the present invention.
  • Figure 6 is a further partial cross-sectional view showing a specific embodiment of the novel electric grinder of the present invention.
  • Figure 7 is a front elevational view of a headgear of a particular embodiment of the novel electric grinder of the present invention. detailed description
  • the novel electric grinder of the present invention comprises a casing 1 , an output shaft 2 and a driving mechanism fixed to the casing, and the output shaft 2 is rotatably fixed in the casing 1 .
  • the output shaft 2 includes a first end portion 21 and a second end portion 22, the drive mechanism includes a drive shaft 3, and the present invention further includes a planetary gear mechanism, the planetary gear mechanism being located in the outer casing 1 and engaging the same
  • the outer casing 1 is connected to the first end portion 21 by the planetary gear mechanism for driving the output shaft 2 to rotate.
  • the planetary gear mechanism includes a gear carrier 4, an idler gear 5, and a gear pin 6.
  • the gear carrier 4 is coupled to the idler tooth 5 via the gear pin 6, and the idler teeth 5 respectively engage the The outer casing 1 and the drive shaft 3, the gear carrier 4 is connected to the first end portion 21.
  • the first end portion 21 is provided with a first external spline
  • the gear socket 4 is provided with a first internal spline
  • the first external spline engages the first An internal spline
  • the drive shaft 3 is provided with a second external spline through the second external spline.
  • the idler teeth 5 are combined.
  • the drive shaft 3 is located in the gear carrier 4.
  • the utility model further comprises a collet 7 and a collet nut grinding head 8, the second end portion 22 has an inner hole and an outer thread, the clamp head 7 is located in the inner hole, and the collet nut 8 is engaged
  • the external thread limits the collet 7 in the inner bore.
  • the collet 7 is a collet, and the outer tapered surface cooperates with the inner taper hole of the output shaft 2, and has an increased driving force and a switching driving force for the workpiece clamping force. Function, at the same time, obtain the minimum moment of inertia of the machine while working.
  • the utility model further includes a retaining ring 9 and a first bearing 10 and a second bearing 11 fixed in the outer casing 1 and arranged in parallel, wherein the output shaft 2 passes through the first bearing 10 And the second bearing 11 is fixed to the first bearing 10 and the second bearing 11, and the dam 9 is fixed on the output shaft 2 for limiting the first bearing 10 and the The second bearing 11.
  • the output shaft 2 cannot move axially, but the rotation is flexible.
  • an internal ring gear 12 is further included, the inner ring gear 12 is fixed in the outer casing 1, and the planetary gear mechanism engages the inner ring gear 12 to indirectly mesh the outer casing 1 through the inner ring gear 12. .
  • the idler teeth 5 of the planetary gear mechanism engage the inner ring gear 12 and are located in the slot of the outer casing 1 for axial movement and flexible rotation in a small range.
  • the driving mechanism is a motor
  • the motor includes a housing 13, a brush mechanism 14, a stator 15 and a rotor
  • the housing 13 is fixed to the housing 1
  • the stator 15 is fixed to the housing.
  • the drive shaft 3 is the rotor
  • the rotor is located in the stator 15 and is rotatably fixed in the outer casing 1
  • the brush mechanism 14 is located in the casing 13 and The rotor is electrically connected.
  • the stator 15 is fixed to the casing 13 and cannot be axially moved and rotated;
  • the rotor is located in the gear carrier 4 and engages the idler teeth 5, and is further provided with a rolling bearing and fixed thereon.
  • the casing 13 is fixed to the casing 1, so that the rotor cannot move axially, but the rotation is flexible, and is indirectly fixed to the casing 1.
  • the brush mechanism 14 includes a brush 16, a brush copper spring 17, a brush cap 18, a brush holder 19, and a brush holder copper liner 20, and the brush holder 19 is fixed in the holder.
  • the brush holder copper liner 20 is located in the brush holder 19 and passes through the brush holder 19 to electrically connect with the rotor, the brush 16 and
  • the brush copper spring 17 is located in the brush holder copper liner 20, and the two ends of the brush copper spring 17 abut against the brush 16 and the brush cap 18, respectively.
  • the wiring plug spring 23 and the switch 24 are used to quickly connect the power source, and the switch 24 is effective to control the state of the machine.
  • the rubber bearing sleeve 30, the swash plate head tapping screw 25, and the closed end terminal are further included. 26.
  • the insulation, the power cord 29 is protected by the cable sheath 27 under the protection and fixing of the crimping plate 27, so that the fuselage is insulated and can be safely operated.
  • the stop pin 32 and the stop spring 33 are used for quick mounting, unloading the grinding head, and the head cover 34 functions as a protection and aesthetic.
  • the chuck 7 When assembling the present invention, the chuck 7 is inserted into the inner hole of the output shaft 2, and the chuck nut 8 is screwed into the external thread; the first bearing 10 and the second bearing 11 are press-fitted on the output shaft 2, and fixed by the dam 9
  • the first end portion 21 has an external spline and is connected to the internal spline of the gear carrier 4; the planetary gear mechanism meshes with the inner ring gear 12 and is placed in the outer casing 1 to be fixed in the card slot;
  • the external spline teeth are engaged with the idler teeth 5, and the two ends of the rotor are press-fitted with rolling bearings to fix the rotor in the casing 13 and can be flexibly rotated; the stator 15 is fixed in the corresponding slot of the casing 13 and cannot rotate.
  • one end has a wire, and is connected with the capacitor 31, the brush holder 19, the brush holder copper lining 20, the brush cap 18, the switch 24, the power line 29; distribute all the components and wires, close the housing 13, and screw
  • the upper screw, the brush 16 and the brush copper spring 17 are placed in the through hole of the brush holder inner liner 20, and the brush cap 18 is screwed on the brush holder 19.
  • the output shaft 2 is provided with a chuck 7 on which the grinding head is mounted and fixed by a chuck nut 8.
  • the motor rotates, the external spline teeth at the front end of the rotor drive the planetary gear mechanism to rotate, thereby being driven by the planet. After the gear mechanism is shifted, the output shaft 2 is rotated to drive the grinding head to rotate.
  • the drive shaft and the output shaft of the electric grinder of the present invention operate in a straight line state, so that the volume is small and easy to operate; and the output shaft can rotate at a speed of 600 to 10,000 rpm, and more preferably, the output shaft rotates. It is 6000 ⁇ 8000 rpm. Therefore, under the condition of the same input power, the torque of the output shaft can be increased by 10 to 100 times, the adjustment range is wide, the application occasion is wide, and the use is flexible and convenient.
  • the planetary gear mechanism of the present invention is used as a transmission mechanism. Compared with the conventional mechanism, since the output shaft 2 and the motor are coupled by the planetary gears, the rotational speed required for the design can be obtained, the stability of the machine can be increased, and the motor, especially the consumables, can be extended. The service life, the greater the torque, the high temperature of the workpiece during the grinding process, and the best results of grinding; this product can be used in polishing, grinding, grinding and other fields.
  • the novel electric grinder of the present invention is convenient to use, greatly reduces vibration and noise, enhances the stability of the whole machine, prolongs the service life of the motor, especially the consumables, and is compact and compact, as follows:
  • the present invention connects the drive mechanism and the output shaft through a planetary gear mechanism. Compared with the conventional mechanism, the same motor can only obtain the required speed and direction of rotation by changing the planetary gear mechanism, and the speed can be slowed down (600 ⁇ 10000 rpm).
  • the best condition is usually 6000 ⁇ 8000 rpm, increase the output torque, the output shaft torque can be increased by 10 ⁇ 100 times under the same input power, so that you can use large-size consumables, greatly reduced Small vibration and noise, enhance the whole machine Smoothness, extend the life of the motor, especially the consumables, because the use of consumables generally requires a speed of 3000 ⁇ 10000 rpm, during the grinding process can also prevent the temperature of the workpiece from being too high, to achieve the best results of grinding, can be used Polishing, grinding, grinding and other fields;
  • the outer tapered surface of the collet of the present invention cooperates with the inner tapered hole of the output shaft, and has the functions of increasing the driving force and converting the driving force into the clamping force of the workpiece, and at the same time obtaining the minimum moment of inertia of the machine during operation. .
  • the driving shaft and the output shaft of the invention work in a straight line state, can reduce the volume of the body, have good visual effect and convenient operation; the dam on the output shaft can prevent the axial movement of the gear socket, thereby improving the Operational.
  • the copper inner lining of the brush holder of the present invention contacts the brush and the rotor to make it conductive. This function avoids the life impact of the traditional wire on the brush, and the use of the copper lining of the brush holder can delay the temperature of the brush too high.
  • the brush grip is deformed so as to avoid affecting the free expansion and contraction of the brush.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Retarders (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Description

电磨
技术领域
本发明涉及电动工具技术领域， 特别涉及电磨技术领域， 具体是指一种新型电磨， 其釆 用行星齿轮传动。
背景技术
传统的此类型电磨的工作方式是： 电机的旋转运动经过联轴器到达输出轴， 输出轴上安 装开花夹头， 磨头安装在此开花夹头上， 这样电机就带动磨头旋转， 且电机的转速和旋向与 磨头的转速和旋向完全一致， 磨削力矩由单相串激电动机的主轴经联轴器带动输出轴直接获 得。 这种利用电枢直接带动磨头旋转的结构不但转速高 （ 28000 ~ 32000 转每分钟）， 而且振 动和噪声也非常大， 不利于研磨、 抛光耗材的使用寿命， 同时对电机的使用寿命也有很大影 响， 而且操作不方便， 尤其是对需要较低转速的时候， 只能釆取电子调速的结构来调节转速， 这样不但温升偏高， 而且转矩也受到影响， 同时也不经济。
因此， 有必要对现有的电磨结构进行改进， 使其使用方便、 振动和噪音减小、 增强整机 平稳性和延长电机使用寿命。 发明内容
本发明的目的是克服了上述现有技术中的缺点， 提供一种新型电磨， 该新型电磨使用方 便、 大大减小了振动和噪音、 增强了整机的平稳性、 延长了电机特别是耗材的使用寿命、 且 结构紧凑、 小巧。
为了实现上述目的， 本发明的一种新型电磨具有如下构成：
该新型电磨， 包括外壳、 输出轴和与所述外壳固定的驱动机构， 所述输出轴可转动固定 在所述外壳中， 所述输出轴包括第一端部和第二端部， 所述驱动机构包括驱动轴， 其主要特 点是， 还包括行星齿轮机构， 所述行星齿轮机构位于所述外壳中并啮合所述外壳， 所述驱动 轴通过所述行星齿轮机构与所述第一端部连接用于驱动所述输出轴转动， 所述行星齿轮机构 包括齿轮承座、 惰齿和齿轮销， 所述齿轮承座通过所述齿轮销与所述惰齿连接， 所述惰齿分 别啮合所述外壳和所述驱动轴， 所述齿轮承座连接所述第一端部。
较佳地， 所述第一端部设置有第一外花键， 所述齿轮承座设置有第一内花键， 所述第一 外花键啮合所述第一内花键。 较佳地， 所述驱动轴上设置有第二外花键通过所述第二外花键啮合所述惰齿。
较佳地， 所述驱动轴位于所述齿轮承座中。
较佳地， 还包括夹头和夹头螺母磨头， 所述第二端部具有内孔和外螺紋， 所述夹头位于 所述内孔中， 所述夹头螺母啮合所述外螺紋将所述夹头限制在所述内孔中。
较佳地， 还包括挡圏及固定在所述外壳内且平行设置的第一轴承和第二轴承， 所述输出 轴穿设所述第一轴承和所述第二轴承并与所述第一轴承和所述第二轴承固定， 所述挡圏固定 在所述输出轴上用于限位所述第一轴承和所述第二轴承。
较佳地， 还包括内齿环， 所述内齿环固定在所述外壳内， 所述行星齿轮机构啮合所述内 齿环通过所述内齿环间接啮合所述外壳。
较佳地， 所述驱动机构是电机， 所述电机包括壳体、 电刷机构、 定子和转子， 所述壳体 与所述外壳固定， 所述定子固定在所述壳体中， 所述驱动轴是所述转子， 所述转子位于所述 定子中并可转动固定在所述外壳中， 所述电刷机构位于所述壳体中并与所述转子电连接。
更佳地， 所述电刷机构包括电刷、 电刷铜弹簧、 刷帽、 刷握和刷握铜内衬， 所述刷握固 定在所述壳体中并位于所述刷帽中， 所述刷握铜内衬位于所述刷握中并穿出所述刷握与所述 转子电连接， 所述电刷和所述电刷铜弹簧位于所述刷握铜内衬中， 所述电刷铜弹簧两端分别 抵靠所述电刷和所述刷帽。
较佳地， 所述的驱动轴和输出轴在一条直线状态下工作。
较佳地， 所述的输出轴的转速可以为 600 ~ 10000转每分钟。
更佳地， 所述的输出轴的转速为 6000 ~ 8000转每分钟。
较佳地， 在同等的输入功率的条件下， 所述的输出轴的扭矩可以增加 10 ~ 100倍。
本发明的有益效果具体如下：
1、 本发明通过行星齿轮机构连接驱动机构和输出轴， 与传统机构相比， 同样的电机只改 变行星齿轮机构就可获取需要的速度和旋向， 可以减緩转速（600 ~ 10000转每分钟， 通常的 最佳状态为 6000 ~ 8000转每分钟 ) , 增大输出扭矩， 在同等的输入功率的条件下， 输出轴的 扭矩可以增加 10 ~ 100倍， 从而可以使用大规格的耗材， 大大减小振动和噪音， 增强整机的 平稳性， 延长电机， 特别是耗材的使用寿命， 因为耗材的使用一般要求转速在 3000 ~ 10000 转每分钟， 研磨过程中还可防止被研磨物件温度过高， 达到研磨的最佳效果， 可用于抛光、 研磨、 磨削等多个领域；
2、本发明的弹簧夹头的外锥面与输出轴的内锥孔相配合， 具有增大驱动力和转换驱动力 为工件夹紧力的功能， 同时， 获得机器在工作时的转动惯量最小。 3、 本发明的驱动轴和输出轴在一直线状态下工作， 可以减小机体的体积， 视觉效果好， 方便操作； 输出轴上的挡圏可以防止齿轮承座轴向窜动， 提高了可操作性。
4、 本发明的刷握铜内衬将电刷及转子接触， 使其导电， 此功能避免传统的导线给电刷带 来的寿命影响， 刷握铜内衬的使用可延緩电刷温度过高而使刷握变形， 从而可以避免影响电 刷的自由伸缩。 附图说明
图 1是本发明的新型电磨的一具体实施例的局部剖视示意图。
图 2是本发明的新型电磨的一具体实施例的夹头、 夹头螺母、 输出轴、 第一轴承、 第二 轴 和挡圏的组装结构局部剖视示意图。
图 3是本发明的新型电磨的一具体实施例的转子的局部结构示意图。
图 4是本发明的新型电磨的一具体实施例的电刷机构的剖视示意图。
图 5是本发明的新型电磨的一具体实施例的另一局部剖视示意图。
图 6是本发明的新型电磨的一具体实施例的又一局部剖视示意图。
图 7是本发明的新型电磨的一具体实施例的头套的主视示意图。 具体实施方式
为了能够更清楚地理解本发明的技术内容， 特举以下实施例详细说明。
请参阅图 1 ~图 7所示， 本发明的新型电磨， 包括外壳 1、 输出轴 2和与所述外壳固定的 驱动机构， 所述的输出轴 2可转动固定在所述外壳 1中， 所述的输出轴 2包括第一端部 21和 第二端部 22, 所述驱动机构包括驱动轴 3 , 本发明还包括行星齿轮机构， 所述行星齿轮机构 位于所述外壳 1 中并啮合所述外壳 1 , 所述驱动轴 3通过所述行星齿轮机构与所述第一端部 21连接用于驱动所述输出轴 2转动。
其中， 所述行星齿轮机构包括齿轮承座 4、 惰齿 5和齿轮销 6, 所述齿轮承座 4通过所述 齿轮销 6与所述惰齿 5连接， 所述惰齿 5分别啮合所述外壳 1和所述驱动轴 3 , 所述齿轮承 座 4连接所述第一端部 21。
在本发明的一具体实施例中， 所述第一端部 21设置有第一外花键， 所述齿轮承座 4设置 有第一内花键， 所述第一外花键啮合所述第一内花键。
在本发明的一具体实施例中， 所述驱动轴 3上设置有第二外花键通过所述第二外花键啮 合所述惰齿 5。
在本发明的一具体实施例中， 所述驱动轴 3位于所述齿轮承座 4中。
较佳地， 还包括夹头 7和夹头螺母磨头 8 , 所述第二端部 22具有内孔和外螺紋， 所述夹 7头位于所述内孔中， 所述夹头螺母 8啮合所述外螺紋将所述夹头 7限制在所述内孔中。 在 本发明的一具体实施例中， 所述夹头 7是弹簧夹头， 其外锥面与输出轴 2的内锥孔相配合， 具有增大驱动力和转换驱动力为工件夹紧力的功能， 同时， 获得机器在工作时的转动惯量最 小。
在本发明的一具体实施例中， 还包括挡圏 9及固定在所述外壳 1 内且平行设置的第一轴 承 10和第二轴承 11 , 所述输出轴 2穿设所述第一轴承 10和所述第二轴承 11并与所述第一 轴承 10和所述第二轴承 11 固定， 所述挡圏 9固定在所述输出轴 2上用于限位所述第一轴承 10和所述第二轴承 11。 输出轴 2不能轴向移动， 但旋转灵活。
较佳地， 还包括内齿环 12, 所述内齿环 12固定在所述外壳 1 内， 所述行星齿轮机构啮 合所述内齿环 12通过所述内齿环 12间接啮合所述外壳 1。 在本发明的一具体实施例中， 所 述行星齿轮机构的惰齿 5啮合所述内齿环 12,并位于外壳 1的卡槽内，可小范围内轴向移动、 旋转灵活。
较佳地， 所述驱动机构是电机， 所述电机包括壳体 13、 电刷机构 14、 定子 15和转子， 所述壳体 13与所述外壳 1固定， 所述定子 15固定在所述壳体 13中， 所述驱动轴 3是所述转 子， 所述转子位于所述定子 15中并可转动固定在所述外壳 1中， 所述电刷机构 14位于所述 壳体 13中并与所述转子电连接。 在本发明的一具体实施例中， 定子 15固定在机壳 13上， 不 能轴向移动和旋转； 转子位于齿轮承座 4中并啮合所述惰齿 5 , 其上还装有滚动轴承并固定 在机壳 13上， 机壳 13与所述外壳 1 固定， 因此转子不能轴向移动， 但旋转灵活， 是间接固 定在外壳 1上的。
在本发明的一具体实施例中， 所述电刷机构 14包括电刷 16、 电刷铜弹簧 17、 刷帽 18、 刷握 19和刷握铜内衬 20, 所述刷握 19固定在所述壳体 13中并位于所述刷帽 18中， 所述刷 握铜内衬 20位于所述刷握 19中并穿出所述刷握 19与所述转子电连接， 所述电刷 16和所述 电刷铜弹簧 17位于所述刷握铜内衬 20中， 所述电刷铜弹簧 17两端分别抵靠所述电刷 16和 所述刷帽 18。
在本发明的一具体实施例中，接线插簧 23和开关 24用于快速连接电源， 开关 24可有效 控制机器状态。
在本发明的一具体实施例中， 还包括橡胶轴承套 30、 十字盘头自攻螺钉 25、 闭端端子 26、 压线板 27、 电缆护套 28和电源线 29, 其中橡胶轴承套 30用于机身防震； 十字盘头自攻 螺钉 25型号为 ST4X16用于紧固， 闭端端子 26用于快速连接和绝缘， 电源线 29在压线板 27 的保护固定下， 再受电缆护套 28的保护， 使此机身绝缘， 能够安全操作。
在本发明的一具体实施例中， 止动销 32和止动弹簧 33用于快速安装， 卸载磨头， 头套 34起保护和美观的作用。
本发明组装时， 将夹头 7装入输出轴 2的内孔， 将夹头螺母 8旋进外螺紋； 输出轴 2上 压装第一轴承 10和第二轴承 11 , 并用挡圏 9固定， 其第一端部 21有外花键， 并与齿轮承座 4的内花键连接； 行星齿轮机构与内齿环 12啮合， 并放入外壳 1中， 使其固定在卡槽内； 转 子一端有外花键齿，并与惰齿 5啮合，转子两端均压装有滚动轴承，将转子固定在壳体 13中， 并能灵活转动； 定子 15固定在壳体 13对应卡槽内， 不能转动， 一端有导线， 并与电容 31、 刷握 19、 刷握铜内衬 20、 刷帽 18 , 开关 24, 电源线 29相连； 把所有零部件及导线分布好， 合上壳体 13 , 并拧上螺丝， 再将电刷 16和电刷铜弹簧 17放入刷握内衬 20的通孔内， 并在 刷握 19上拧上刷帽 18。
本发明使用时， 输出轴 2上安装夹头 7, 夹头 7上安装磨头并用夹头螺母 8固定， 当电 机旋转时， 利用转子前端的外花键齿驱动行星齿轮机构旋转， 从而由行星齿轮机构变速后驱 动输出轴 2旋转， 从而带动磨头旋转。
本发明的电磨的驱动轴和输出轴在一条直线状态下工作， 从而体积细小， 便于操作； 同 时输出轴的转速可以为 600 ~ 10000转每分钟， 更佳地， 所述的输出轴的转速为 6000 ~ 8000 转每分钟。从而能够保证在同等的输入功率的条件下，所述的输出轴的扭矩可以增加 10 ~ 100 倍， 调整范围较宽， 适用场合广， 使用灵活方便。
本发明釆用行星齿轮机构作为传动机构， 与传统机构相比， 由于输出轴 2和电机是通过 行星齿轮联接， 可以获得设计上需要的转速， 增加机器的平稳性， 延长电机， 特别是耗材的 使用寿命， 获得更大的扭矩， 研磨过程中还可防止被研磨物件温度过高， 达到研磨的最佳效 果； 本品可用于抛光、 研磨、 磨削等领域。
综上， 本发明的新型电磨使用方便、 大大减小了振动和噪音、 增强了整机的平稳性、 延 长了电机特别是耗材的使用寿命、 且结构紧凑、 小巧， 具体如下：
1、 本发明通过行星齿轮机构连接驱动机构和输出轴， 与传统机构相比， 同样的电机只改 变行星齿轮机构就可获取需要的速度和旋向， 可以减緩转速（600 ~ 10000转每分钟， 通常的 最佳状态为 6000 ~ 8000转每分钟）， 增大输出扭矩， 在同等的输入功率的条件下， 输出轴的 扭矩可以增加 10 ~ 100倍， 从而可以使用大规格的耗材， 大大减小振动和噪音， 增强整机的 平稳性， 延长电机， 特别是耗材的使用寿命， 因为耗材的使用一般要求转速在 3000 ~ 10000 转每分钟， 研磨过程中还可防止被研磨物件温度过高， 达到研磨的最佳效果， 可用于抛光、 研磨、 磨削等多个领域；
2、本发明的弹簧夹头的外锥面与输出轴的内锥孔相配合，具有增大驱动力和转换驱动力 为工件夹紧力的功能， 同时， 获得机器在工作时的转动惯量最小。
3、 本发明的驱动轴和输出轴在一直线状态下工作， 可以减小机体的体积， 视觉效果好， 方便操作； 输出轴上的挡圏可以防止齿轮承座轴向窜动， 提高了可操作性。
4、 本发明的刷握铜内衬将电刷及转子接触， 使其导电， 此功能避免传统的导线给电刷带 来的寿命影响， 刷握铜内衬的使用可延緩电刷温度过高而使刷握变形， 从而可以避免影响电 刷的自由伸缩。
在此说明书中， 本发明已参照其特定的实施例作了描述。 但是， 很显然仍可以作出各种 修改和变换而不背离本发明的精神和范围。 因此， 说明书和附图应被认为是说明性的而非限 制性的。

Claims

权利要求
1、一种新型电磨， 包括外壳、 输出轴和与所述的外壳固定的驱动机构， 所述的输出轴可 转动固定在所述的外壳中， 所述的输出轴包括第一端部和第二端部， 所述的驱动机构包括驱 动轴， 其特征在于， 所述的电磨还包括行星齿轮机构， 所述的行星齿轮机构位于所述的外壳 中并啮合该外壳， 所述的驱动轴通过所述的行星齿轮机构与所述的输出轴的第一端部相连接 用于驱动所述的输出轴转动， 所述的行星齿轮机构包括齿轮承座、 惰齿和齿轮销， 所述的齿 轮承座通过所述的齿轮销与所述的惰齿相连接 , 所述的惰齿分别啮合所述的外壳和所述的驱 动轴， 所述的齿轮承座与所述的输出轴的第一端部相连接。
2、 根据权利要求 1所述的新型电磨， 其特征在于， 所述的第一端部设置有第一外花键， 所述的齿轮承座设置有第一内花键， 所述的第一外花键与所述的第一内花键相啮合。
3、 根据权利要求 1所述的新型电磨， 其特征在于， 所述的驱动轴上设置有第二外花键， 且该驱动轴通过该第二外花键与所述的惰齿相啮合。
4、根据权利要求 1所述的新型电磨，其特征在于，所述的驱动轴位于所述的齿轮承座中。
5、 根据权利要求 1所述的新型电磨， 其特征在于， 所述的电磨还包括夹头和夹头螺母磨 头， 所述的输出轴的第二端部具有内孔和外螺紋， 所述的夹头位于所述的内孔中， 所述的夹 头与所述的外螺紋相螺母啮合， 并将所述的夹头限制在所述的内孔中。
6、 根据权利要求 1所述的新型电磨， 其特征在于， 所述的电磨还包括挡圏及固定在该外 壳内且平行设置的第一轴承和第二轴承， 所述的输出轴穿设所述的第一轴承和第二轴承并与 该第一轴承和第二轴承固定， 所述的挡圏固定在所述的输出轴上用于限位所述的第一轴承和 所述的第二轴承。
7、 根据权利要求 1所述的新型电磨， 其特征在于， 所述的电磨还包括内齿环， 所述的内 齿环固定在所述的外壳内， 所述的行星齿轮机构与所述的内齿环相啮合， 且通过该内齿环间 接啮合所述的外壳。
8、 根据权利要求 1所述的新型电磨， 其特征在于， 所述的驱动机构为电机， 所述的电机 包括壳体、 电刷机构、 定子和转子， 所述的壳体与所述的外壳固定， 所述的定子固定在该壳 体中， 所述的驱动轴为所述的转子， 所述的转子位于所述的定子中并可转动固定在所述的外 壳中， 所述的电刷机构位于所述的壳体中并与所述的转子电连接。
9、 根据权利要求 8所述的新型电磨， 其特征在于， 所述的电刷机构包括电刷、 电刷铜弹 簧、 刷帽、 刷握和刷握铜内衬， 所述的刷握固定在所述的壳体中并位于所述的刷帽中， 所述 的刷握铜内衬位于所述的刷握中并穿出所述的刷握与所述的转子接触， 所述的电刷和所述的 电刷铜弹簧位于所述的刷握铜内衬中， 所述的电刷铜弹簧两端分别抵靠所述的电刷和刷帽。
10、 根据权利要求 1至 9中任一项所述的新型电磨， 其特征在于， 所述的驱动轴和输出 轴在一条直线状态下工作。
11、 根据权利要求 1至 9中任一项所述的新型电磨， 其特征在于， 所述的输出轴的转速 为 600 ~ 10000转每分钟。
12、根据权利要求 11所述的新型电磨， 其特征在于， 所述的输出轴的转速为 6000 ~ 8000 转每分钟。
13、 根据权利要求 1至 9中任一项所述的新型电磨， 其特征在于， 在同等的输入功率的 条件下， 所述的输出轴的扭矩增加 10 ~ 100倍。
PCT/CN2009/076015 2008-12-25 2009-12-24 电磨 WO2010072168A1 (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2527089A1 (de) * 2011-05-27 2012-11-28 Robert Bosch Gmbh Motorgetriebenes Handschleifgerät
CN114144594A (zh) * 2019-07-26 2022-03-04 株式会社电装 离合器装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201320717Y (zh) * 2008-12-25 2009-10-07 上海卓特工具有限公司 新型电磨
JP6009312B2 (ja) * 2012-10-12 2016-10-19 コマツＮｔｃ株式会社 研削盤

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6188044A (ja) * 1984-10-05 1986-05-06 Matsushita Electric Ind Co Ltd 遊星歯車装置
JP2001071229A (ja) * 1999-07-05 2001-03-21 Leben Co Ltd 加工装置及び揺動回転変換ユニット
CN2631696Y (zh) * 2003-07-22 2004-08-11 浙江铁鎯电动工具有限公司 电动工具的易装卸磨头的机构
CN1780102A (zh) * 2004-11-19 2006-05-31 乐金电子(天津)电器有限公司 吸尘器电机的电刷组件
CN201030503Y (zh) * 2007-03-02 2008-03-05 高庭晖 手持电磨机
CN201320717Y (zh) * 2008-12-25 2009-10-07 上海卓特工具有限公司 新型电磨

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5837784B2 (ja) * 1978-11-16 1983-08-18 株式会社日立製作所 回転電機のブラシ保持装置
JPH02190643A (ja) * 1989-01-13 1990-07-26 Daishowa Seiki Co Ltd 伝動装置
JPH08118260A (ja) * 1994-10-20 1996-05-14 Hitachi Koki Co Ltd 電動工具の配線ブロック
JPH08281548A (ja) * 1995-04-14 1996-10-29 Hitachi Koki Co Ltd サンダ
JP2003222201A (ja) * 2002-01-31 2003-08-08 Nidec-Shimpo Corp 遊星歯車減速機及びこの減速機を用いた駆動装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6188044A (ja) * 1984-10-05 1986-05-06 Matsushita Electric Ind Co Ltd 遊星歯車装置
JP2001071229A (ja) * 1999-07-05 2001-03-21 Leben Co Ltd 加工装置及び揺動回転変換ユニット
CN2631696Y (zh) * 2003-07-22 2004-08-11 浙江铁鎯电动工具有限公司 电动工具的易装卸磨头的机构
CN1780102A (zh) * 2004-11-19 2006-05-31 乐金电子(天津)电器有限公司 吸尘器电机的电刷组件
CN201030503Y (zh) * 2007-03-02 2008-03-05 高庭晖 手持电磨机
CN201320717Y (zh) * 2008-12-25 2009-10-07 上海卓特工具有限公司 新型电磨

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2527089A1 (de) * 2011-05-27 2012-11-28 Robert Bosch Gmbh Motorgetriebenes Handschleifgerät
CN114144594A (zh) * 2019-07-26 2022-03-04 株式会社电装 离合器装置

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