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19 条记录 (耗时 0.009 秒)

    Electromagnetic percussion appliance
    1.
    发明授权
    Electromagnetic percussion appliance 失效
    电磁打击乐器

    公开(公告)号：US4215297A

    公开(公告)日：1980-07-29

    申请号：US810757

    申请日：1977-06-28

    申请人： Georges Jacquemet

    发明人： Georges Jacquemet

    IPC分类号： B25D11/06 ,  B25D13/00 ,  E21B1/22 ,  H01F7/06 ,  H01F7/08 ,  H02K33/04 ,  H02K33/00

    CPC分类号： H01F7/064 ,  B25D11/064 ,  E21C3/16 ,  H01F7/088

    摘要： An electromagnetic hammer has a coil coacting with an axially reciprocable armature including a ferromagnetic core traversed by an elongate nonmagnetic ram which carries at one end a spring-loaded piston head forming part of a pneumatic damping device, its other end co-operating with a working tool. The coil is intermittently energizable by a control system including a capacitor chargeable from an electric power supply by way of a first thyristor and dischargeable through the coil by way of a second thyristor, the two thyristors being sequentially triggered in response to a control pulse applied to a transformer with two secondaries generating staggered firing pulses with the aid of a delay network in the output circuit of one of these secondaries.

    摘要翻译： 电磁锤具有与轴向往复运动的电枢共同作用的线圈，其包括由细长的非磁性冲头横穿的铁磁芯，其在一端承载形成气动阻尼装置的一部分的弹簧加载的活塞头，其另一端与工作 工具。 线圈由包括可从第一晶闸管通过电源充电的电容器的控制系统间歇地通电，并且可通过第二晶闸管通过线圈放电，两个晶闸管响应于施加到 具有两个次级的变压器借助于这些次级之一的输出电路中的延迟网络产生交错的点火脉冲。

    Percussive tools
    3.
    发明授权
    Percussive tools 失效
    打击乐器

    公开(公告)号：US4353426A

    公开(公告)日：1982-10-12

    申请号：US178280

    申请日：1980-08-15

    申请人： Richard Ward

    发明人： Richard Ward

    IPC分类号： B25D9/04 ,  B25D11/06 ,  B25D13/00 ,  E21B1/22 ,  E21C37/24

    CPC分类号： B25D9/04 ,  B25D11/064

    摘要： A percussive tool, for use in mining, quarrying, or excavating, comprising a reciprocable mass movable in one direction against the resistance of a spring by a movable permanent magnet assembly. A hydraulic ram moves the permanent magnet assembly. A plate between the ram and the magnet assembly acts as a flux diverter such that as the assembly is moved proximate the plate by the ram, flux passing through the mass is reduced and the spring forces the mass to impact a tool shank.

    摘要翻译： 一种用于采矿，采石或挖掘的冲击工具，包括可在一个方向上通过可移动永磁体组件抵抗弹簧的阻力移动的可往复运动的物体。 液压柱塞使永磁体组件移动。 压头和磁体组件之间的板用作通量分流器，使得当组件通过压头移动靠近板时，通过质量块的焊剂减少，并且弹簧迫使质量冲击工具柄。

    Magnetic gear for use with wellbore instruments
    9.
    发明授权
    Magnetic gear for use with wellbore instruments 有权
    用于井眼仪器的磁齿轮

    公开(公告)号：US09080386B2

    公开(公告)日：2015-07-14

    申请号：US13608113

    申请日：2012-09-10

    申请人： Richard McCann ,  Kenneth Smith ,  Jeff Birchall ,  Jamie Cochran ,  Michael J Rushby

    发明人： Richard McCann ,  Kenneth Smith ,  Jeff Birchall ,  Jamie Cochran ,  Michael J Rushby

    IPC分类号： E21B1/22 ,  E21B4/00 ,  E21B4/04 ,  E21B43/12 ,  H02K49/10 ,  H02K1/18 ,  H02K1/28

    CPC分类号： E21B4/006 ,  E21B4/04 ,  E21B43/128 ,  H02K1/185 ,  H02K1/28 ,  H02K49/102 ,  H02K2207/03

    摘要： A wellbore rotating instrument system includes a source of rotational energy for transmission thereof to within a wellbore. At least one magnetic gear assembly is coupled at its input to an output of the source. A rotating load is coupled at its input to a rotational output of the magnetic gear assembly. The at least one magnetic gear assembly comprises a housing, a stator disposed in the housing proximate an inner wall thereof, a second shaft rotatably supported on bearings disposed at longitudinally spaced apart locations inside the housing and a first shaft rotatably supported inside the output shaft. The stator comprises a plurality of magnets disposed in generally circular laminations. The second shaft comprises a non-magnetic, electrically non-conductive body and a plurality of pole pieces disposed circumferentially therearound. The first shaft comprises magnets disposed around its exterior circumference and shaped to fit rotatably within the second shaft.

    摘要翻译： 井筒旋转仪器系统包括用于将其传输到井眼内的旋转能量源。 至少一个磁齿轮组件在其输入端处耦合到源的输出端。 旋转负载在其输入端耦合到磁齿轮组件的旋转输出。 所述至少一个磁齿轮组件包括外壳，定位在所述壳体中靠近其内壁的第二轴，所述第二轴可旋转地支撑在所述壳体内部纵向间隔开的位置处的轴承上，以及可旋转地支撑在所述输出轴内的第一轴。 定子包括以大致圆形的叠片布置的多个磁体。 第二轴包括非磁性，非导电体和沿其周向设置的多个极片。 第一轴包括围绕其外圆周设置并且成形为可旋转地配合在第二轴内的磁体。