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    Power tool with impact mechanism
    3.
    发明授权
    Power tool with impact mechanism 有权
    电动工具带冲击机构

    公开(公告)号：US08631880B2

    公开(公告)日：2014-01-21

    申请号：US12764714

    申请日：2010-04-21

    申请人： Sankarshan Murthy ,  Qiang Zhang ,  Daniel Puzio ,  James T. Rill

    发明人： Sankarshan Murthy ,  Qiang Zhang ,  Daniel Puzio ,  James T. Rill

    IPC分类号： B25D15/02

    CPC分类号： B25B21/023 ,  Y10T29/49963

    摘要： A power tool with a housing, a motor, a transmission, a spindle and an impact mechanism. The motor has an output shaft that drives the transmission. The transmission has a plurality of planet gears, a planet carrier journally supporting the planet gears for rotation about an axis, and a ring gear that is in meshing engagement with the planet gears. The impact mechanism has a plurality of anvil lugs, an impactor and an impactor spring. The anvil lugs are coupled to the ring gear and are not engaged by the planet gears. The impactor is mounted to pivot about the spindle and has a plurality of hammer lugs. The impactor spring biases the impactor toward the ring gear to cause the hammer lugs to engage the anvil lugs. A power tool having an impact mechanism with an external adjusting member that can be moved to vary a trip torque of the impact mechanism is also provided.

    摘要翻译： 具有外壳，电机，变速箱，主轴和冲击机构的电动工具。 电机具有驱动变速器的输出轴。 变速器具有多个行星齿轮，行星架支撑行星齿轮以围绕轴线旋转，以及与行星齿轮啮合的环形齿轮。 冲击机构具有多个砧座，冲击器和冲击弹簧。 砧座与环形齿轮联接，并不与行星齿轮啮合。 冲击器被安装成围绕主轴枢转并且具有多个锤片。 冲击器弹簧将冲击器偏压到环形齿轮，以使锤片接触砧座。 还提供一种具有冲击机构的电动工具，其具有能够移动以改变冲击机构的跳闸扭矩的外部调节构件。

    POWER TOOL WITH IMPACT MECHANISM
    4.
    发明申请
    POWER TOOL WITH IMPACT MECHANISM 有权
    具有冲击力的电动工具

    公开(公告)号：US20100276168A1

    公开(公告)日：2010-11-04

    申请号：US12764714

    申请日：2010-04-21

    申请人： Sankarshan Murthy ,  Qiang Zhang ,  Daniel Puzio ,  James T. Rill

    发明人： Sankarshan Murthy ,  Qiang Zhang ,  Daniel Puzio ,  James T. Rill

    IPC分类号： B25D11/04 ,  B25B21/02 ,  B23P11/00

    CPC分类号： B25B21/023 ,  Y10T29/49963

    摘要： A power tool with a housing, a motor, a transmission, a spindle and an impact mechanism. The motor has an output shaft that drives the transmission. The transmission has a plurality of planet gears, a planet carrier journally supporting the planet gears for rotation about an axis, and a ring gear that is in meshing engagement with the planet gears. The impact mechanism has a plurality of anvil lugs, an impactor and an impactor spring. The anvil lugs are coupled to the ring gear and are not engaged by the planet gears. The impactor is mounted to pivot about the spindle and has a plurality of hammer lugs. The impactor spring biases the impactor toward the ring gear to cause the hammer lugs to engage the anvil lugs. A power tool having an impact mechanism with an external adjusting member that can be moved to vary a trip torque of the impact mechanism is also provided.

    摘要翻译： 具有外壳，电机，变速箱，主轴和冲击机构的电动工具。 电机具有驱动变速器的输出轴。 变速器具有多个行星齿轮，行星架支撑行星齿轮以围绕轴线旋转，以及与行星齿轮啮合的环形齿轮。 冲击机构具有多个砧座，冲击器和冲击弹簧。 砧座与环形齿轮联接，并不与行星齿轮啮合。 冲击器被安装成围绕主轴枢转并且具有多个锤片。 冲击器弹簧将冲击器偏压到环形齿轮，以使锤片接触砧座。 还提供一种具有冲击机构的电动工具，其具有能够移动以改变冲击机构的跳闸扭矩的外部调节构件。

    Hybrid impact tool with two-speed transmission
    5.
    发明授权
    Hybrid impact tool with two-speed transmission 有权
    混合式冲击工具，双速传动

    公开(公告)号：US08460153B2

    公开(公告)日：2013-06-11

    申请号：US12971940

    申请日：2010-12-17

    申请人： Scott Rudolph ,  Sankarshan Murthy ,  Daniel Puzio ,  Qiang Zhang ,  Aris Cleanthous ,  Mehdi Abolhassani ,  Ren H. Wang

    发明人： Scott Rudolph ,  Sankarshan Murthy ,  Daniel Puzio ,  Qiang Zhang ,  Aris Cleanthous ,  Mehdi Abolhassani ,  Ren H. Wang

    IPC分类号： F16H3/44 ,  F16H57/08

    CPC分类号： B25F5/001 ,  B25B21/02

    摘要： A power tool that includes a housing, a motor, a planetary transmission, a first bearing and a second bearing. The motor is disposed in the housing and includes an output shaft. The planetary transmission has a sun gear, a plurality of first planet gears, a first ring gear and a carrier. The sun gear is driven by the output shaft. The first planet gears are driven by the sun gear and have teeth that are meshingly engaged to teeth of the first ring gear. The carrier includes a rear carrier plate and a front carrier plate between which the first and second planet gears are received. The rear carrier plate includes a first bearing aperture. The first bearing is received in the first bearing aperture and is configured to support the output shaft. The second bearing is received onto the rear carrier plate to support the carrier relative to the housing.

    摘要翻译： 一种电动工具，其包括壳体，电动机，行星变速器，第一轴承和第二轴承。 马达设置在壳体中并包括输出轴。 行星传动装置具有太阳齿轮，多个第一行星齿轮，第一齿圈和载体。 太阳齿轮由输出轴驱动。 第一行星齿轮由太阳齿轮驱动并且具有与第一齿圈的齿啮合地啮合的齿。 载体包括后承载板和前承载板，第一和第二行星齿轮在其之间接收。 后承载板包括第一轴承孔。 第一轴承被容纳在第一轴承孔中并被构造成支撑输出轴。 第二轴承被接收到后承载板上以相对于壳体支撑托架。

    HYBRID IMPACT TOOL WITH TWO-SPEED TRANSMISSION
    6.
    发明申请
    HYBRID IMPACT TOOL WITH TWO-SPEED TRANSMISSION 有权
    具有两速传动的混合冲击工具

    公开(公告)号：US20110152029A1

    公开(公告)日：2011-06-23

    申请号：US12971940

    申请日：2010-12-17

    申请人： Scott Rudolph ,  Sankarshan Murthy ,  Daniel Puzio ,  Qiang Zhang ,  Aris Cleanthous ,  Mehdi Abolhassani ,  Ren H. Wang

    发明人： Scott Rudolph ,  Sankarshan Murthy ,  Daniel Puzio ,  Qiang Zhang ,  Aris Cleanthous ,  Mehdi Abolhassani ,  Ren H. Wang

    IPC分类号： F16H3/58 ,  F16H3/44

    CPC分类号： B25F5/001 ,  B25B21/02

    摘要： A power tool that includes a housing, a motor, a planetary transmission, a first bearing and a second bearing. The motor is disposed in the housing and includes an output shaft. The planetary transmission has a sun gear, a plurality of first planet gears, a first ring gear and a carrier. The sun gear is driven by the output shaft. The first planet gears are driven by the sun gear and have teeth that are meshingly engaged to teeth of the first ring gear. The carrier includes a rear carrier plate and a front carrier plate between which the first and second planet gears are received. The rear carrier plate includes a first bearing aperture. The first bearing is received in the first bearing aperture and is configured to support the output shaft. The second bearing is received onto the rear carrier plate to support the carrier relative to the housing.

    摘要翻译： 一种电动工具，其包括壳体，电动机，行星变速器，第一轴承和第二轴承。 马达设置在壳体中并包括输出轴。 行星传动装置具有太阳齿轮，多个第一行星齿轮，第一齿圈和载体。 太阳齿轮由输出轴驱动。 第一行星齿轮由太阳齿轮驱动并且具有与第一齿圈的齿啮合地啮合的齿。 载体包括后承载板和前承载板，第一和第二行星齿轮在其之间接收。 后承载板包括第一轴承孔。 第一轴承被容纳在第一轴承孔中并被构造成支撑输出轴。 第二轴承被接收到后承载板上以相对于壳体支撑托架。

    Motor With Permanent Magnets and Method of Manufacturing; Power Tool With Same
    8.
    发明申请
    Motor With Permanent Magnets and Method of Manufacturing; Power Tool With Same 有权
    永磁电机及制造方法; 电动工具一样

    公开(公告)号：US20100033036A1

    公开(公告)日：2010-02-11

    申请号：US12443191

    申请日：2007-10-12

    申请人： Earl M. Ortt ,  Hung T. Du ,  Sankarshan Murthy

    发明人： Earl M. Ortt ,  Hung T. Du ,  Sankarshan Murthy

    IPC分类号： H02K7/14 ,  H02K15/00 ,  H02K1/27 ,  H02K1/17

    CPC分类号： H02K1/17 ,  H02K1/2786 ,  H02K15/03 ,  H02K23/04 ,  Y10T29/49009

    摘要： An electric motor has a rotor and a stator. The rotor or the stator has arced permanent magnets that have essentially the same inner radius (IR) and outer radius (OR). In an aspect, the stator has a stator housing having a plurality of poles. Each pole includes a plurality of flat magnets affixed to an inner surface of the stator housing. In an aspect, flats on the outside of the stator housing key the stator assembly in a power tool housing. In an aspect, flat magnets are pre-magnetized, pre-assembled with alternating magnetic polarities, inserted into a stator housing, and remagnetized to a final, desired magnetic polarity configuration. In an aspect, pre-magnetized magnets and unmagnetized magnets are pre-assembled with unmagnetized magnets between magnetized magnets, the pre-assembled magnets inserted into a stator housing, and the unmagnetized magnets magnetized to a final, desired magnetic polarity configuration. In an aspect, pre-magnetized magnets are inserted between anchors inwardly extending from an inner surface of a stator housing with the anchors retaining each magnet placed in the stator housing between anchors from being angularly displaced by subsequently inserted magnets. In an aspect, pre-magnetized magnets are inserted in recesses in an inner surface of a stator housing with the recesses retaining each magnet placed in the stator housing between anchors from being angularly displaced by subsequently inserted magnets. In an aspect, each pole has at least three magnets, at least one of the magnets being thinner than the other magnets. In an aspect, the outer most magnets are made of magnetic material that is more resistant to demagnetization than at least one of the other magnets. In an aspect, the magnets of each pole are unevenly spaced over the pole In an aspect, a power tool includes such an electric motor.

    摘要翻译： 电动机具有转子和定子。 转子或定子具有具有基本相同的内半径（IR）和外半径（OR）的弧形永磁体。 在一方面，定子具有具有多个极的定子壳体。 每个极包括固定在定子壳体的内表面上的多个扁平磁体。 在一个方面，定子外壳外侧的平面将定子组件锁定在动力工具壳体中。 在一方面，扁平磁体被预先磁化，预先组装成具有交替的磁极性，插入定子壳体中，并且被重新磁化成最终期望的磁极性配置。 在一方面，预磁化磁体和非磁化磁体在磁化磁体之间预先组装有非磁化磁体，预组装的磁体插入定子壳体中，而磁化的磁体磁化到最终期望的磁极性结构。 在一个方面，预磁化的磁体被插入到从定子壳体的内表面向内延伸的锚固件之间，锚固件将放置在定子壳体中的每个磁体保持在锚固件之间，以便由随后插入的磁体进行角度位移。 在一方面，预磁化的磁体被插入定子壳体的内表面中的凹槽中，其中保持放置在定子壳体中的每个磁体的凹槽不会被随后插入的磁体角位移。 在一个方面，每个极具有至少三个磁体，至少一个磁体比其它磁体薄。 在一个方面，最外面的磁体由比其它磁体中的至少一个更能抵抗退磁的磁性材料制成。 在一方面，每个极的磁体在极点上不均匀地间隔开。在一个方面，电动工具包括这种电动机。

    Spindle bearing arrangement for a power tool
    9.
    发明授权
    Spindle bearing arrangement for a power tool 有权
    电动工具的主轴轴承布置

    公开(公告)号：US08584770B2

    公开(公告)日：2013-11-19

    申请号：US12729867

    申请日：2010-03-23

    申请人： Qiang Zhang ,  David C. Tomayko ,  Sankarshan Murthy ,  James T. Rill

    发明人： Qiang Zhang ,  David C. Tomayko ,  Sankarshan Murthy ,  James T. Rill

    IPC分类号： B23Q5/00 ,  E21B3/00 ,  E21B17/22 ,  E21B19/16 ,  E21B19/18

    CPC分类号： B25F5/001 ,  B23Q5/04 ,  B25B21/00 ,  B25B21/02

    摘要： A power tool with a motor, a housing, a transmission, an output spindle, a front bearing and a rear bearing. The motor has an output shaft. The transmission is disposed in the housing and receives a rotary input from the output shaft. The transmission includes an input planetary stage, which has an input planet carrier, and an output planetary stage. The output spindle is driven by the transmission and has a first end, which extends at least partly through the input planetary stage, and a second end opposite the first end. The front bearing is disposed between the output spindle and the housing to support the second end of the output spindle for rotation about the spindle axis. The rear bearing indirectly supports the first end of the output spindle in the housing for rotation about the spindle axis.

    摘要翻译： 具有电动机，壳体，变速器，输出主轴，前轴承和后轴承的电动工具。 电机有一个输出轴。 变速器设置在壳体中并从输出轴接收旋转输入。 变速器包括输入行星级，其具有输入行星架和输出行星级。 输出主轴由变速器驱动，并且具有至少部分地延伸穿过输入行星级的第一端和与第一端相对的第二端。 前轴承设置在输出主轴和壳体之间，以支撑输出主轴的第二端以围绕主轴轴线旋转。 后轴承间接地支撑壳体中的输出主轴的第一端，以围绕主轴轴线旋转。

    Transmission for Power Tool with Variable Speed Ratio
    10.
    发明申请
    Transmission for Power Tool with Variable Speed Ratio 有权
    变速比电动工具变速箱

    公开(公告)号：US20130126201A1

    公开(公告)日：2013-05-23

    申请号：US13298967

    申请日：2011-11-17

    申请人： Qiang J. Zhang ,  Beverly Matthews ,  Sankarshan Murthy

    发明人： Qiang J. Zhang ,  Beverly Matthews ,  Sankarshan Murthy

    IPC分类号： B23B45/02 ,  F16H1/28

    CPC分类号： B23B45/008 ,  B23B39/00 ,  B23B2260/07 ,  B23B2260/076 ,  B25F5/001 ,  F16H27/06 ,  F16H35/02 ,  Y10T74/19555 ,  Y10T74/19884

    摘要： A power tool includes a housing, a motor contained in the housing, an output shaft extending proximate a front of the housing, an end effector coupled to the output shaft and configured to hold an accessory; and a transmission disposed in the housing between the motor and the output shaft. The transmission includes a variable ratio gear set configured to transmit power from the motor to the output shaft at a substantially variable speed ratio. The transmission may further include a constant ratio gear set configured to transmit power from the motor at a substantially constant speed ratio. The transmission may be automatically or manually shiftable between a first mode where it transmits power through the constant speed ratio gear set and a second mode where it transmits power through the variable speed ratio gear set.

    摘要翻译： 电动工具包括壳体，容纳在壳体中的电动机，靠近壳体前部延伸的输出轴，连接到输出轴并构造成保持附件的端部执行器; 以及设置在电机和输出轴之间的壳体中的变速器。 变速器包括可变比齿轮组，其被配置为以基本上可变的速比从电动机向输出轴传递动力。 所述变速器还可以包括恒定比例齿轮组，其被配置为以基本上恒定的速度比从所述马达传递动力。 变速器可以在其通过恒速比齿轮组传递动力的第一模式和通过可变速比齿轮组传递动力的第二模式之间自动或手动地移动。