Drill
    1.
    发明授权
    Drill 失效
    钻头

    公开(公告)号:US5895179A

    公开(公告)日:1999-04-20

    申请号:US80876

    申请日:1998-05-18

    摘要: A drill including an elongate shaft (2) a rear end (5) of which is formed as a shank, and a drilling head (10) provided at the front end of the shaft (2) and having central cutting edges (11, 12) extending from a leading center point (14), which is provided substantially at an extension of a shaft axis, backward toward a circumference of the drilling head, and at least one minor cutting edge (13) a portion (n) of which extending transverse to the shaft axis projects beyond a circumference of the shaft (2), with the projecting portion (n) having a length equal from about 10% to 100% of an entire length of the minor cutting edge.

    摘要翻译: 一种钻头,其包括细长轴(2),其后端(5)形成为柄,以及设置在所述轴(2)的前端的钻头(10),并且具有中心切削刃 ),其从基本上设置在轴线的延伸部处的前导中心点(14)延伸,并且朝向所述钻孔头的圆周向后延伸,并且至少一个副切削刃(13)的一部分(n)延伸 横向于轴线突出超过轴(2)的圆周,其中突出部分(n)的长度等于小切削刃的整个长度的大约10%至100%。

    Method and apparatus for absolute measurement of force by use of
polarized, non-coherent light and compensation of strain-induced
birefringence effects in a single mode-fiber optic waveguide
    3.
    发明授权
    Method and apparatus for absolute measurement of force by use of polarized, non-coherent light and compensation of strain-induced birefringence effects in a single mode-fiber optic waveguide 失效
    通过使用偏振的非相干光来绝对测量力的方法和装置,并且在单模光纤波导中补偿应变诱发的双折射效应

    公开(公告)号:US5317147A

    公开(公告)日:1994-05-31

    申请号:US8927

    申请日:1993-01-26

    IPC分类号: G01D5/353 G01L1/24 H01J5/16

    CPC分类号: G01L1/243 G01L1/241

    摘要: The present invention discloses a method and an apparatus which enables one to obtain definite non-modulo-2.pi.-dependent measurements wherein a method for the fiber-optic measurement of force, which is based upon the strain-induced birefringence of a single-mode light waveguide, provides a compensation method for the phase differences of two linear modes of the exiting light waves, which are caused by the force acting on the light waveguide and the consequent change in birefringence. In one embodiment of the method, a liquid crystal cell, the birefringence effect of which can be controlled electrically, is used as a compensation element. The maximum of an autocorrelation function, which occurs as an image, and the respective voltage at the liquid crystal cell, are evaluated as a measurement for the birefringence which is to be compensated for and, accordingly, for the effective force. In an alternate embodiment of the method, the two partial waves are directed transversely relative to the propagation direction of the wave fronts by an optical component with linearly space-dependent birefringence. The autocorrelation function can then be obtained as a spatial coordinate and can be plotted electronically by a line detector such as a line array. The location of the maximum of the autocorrelation function is, under certain defined conditions, a measurement for the birefringence which is caused in the light waveguide by mechanical tension from which the magnitude of the force, which acts on the force sensor, can be calculated.

    摘要翻译: 本发明公开了一种使得能够获得确定的非模2π依赖性测量的方法和装置,其中基于单模的应变引起的双折射的用于光纤测量力的方法 光波导提供了由作用在光波导上的力引起的出射光波的两个线性模式的相位差的补偿方法以及随之而来的双折射变化。 在该方法的一个实施例中,可以将电双折射效应控制在其上的液晶单元用作补偿元件。 作为图像发生的自相关函数的最大值和液晶单元处的各自的电压被评价为要被补偿并因此有效力的双折射的测量。 在该方法的替代实施例中,两个部分波通过具有线性空间相关双折射的光学部件相对于波前的传播方向横向地引导。 然后可以获得自相关函数作为空间坐标,并且可以通过线检测器(例如线阵列)以电子方式绘制。 自相关函数的最大值的位置是在某些限定的条件下,对通过机械张力在光波导中引起的双折射的测量,由此可以计算作用在力传感器上的力的大小。

    Percussion blow added manually operable drilling tool
    4.
    发明授权
    Percussion blow added manually operable drilling tool 失效
    打击乐打击手动钻孔工具

    公开(公告)号:US6044918A

    公开(公告)日:2000-04-04

    申请号:US716925

    申请日:1996-09-20

    IPC分类号: B23B45/16 B25D16/00 B25B23/14

    摘要: A percussion blow added manually operable drilling tool, such as a hammerdrill, has a housing (2) containing an electric motor for rotating a tool bit chuck (9) about its axis, a control device (C) for controlling the rpm of the chuck (9) operated by the electric motor (3) which is activated by a switch (5) located on the exterior of the housing (2), and a percussion blow mechanism for periodically applying axially directed blows to a bit (10) secured in the chuck (9). The electric motor (3) is coupled to a device (12) for measuring the reaction torque. The control device (C) is connected to an evaluation unit (E) which is connected to the device (12) for measuring the reaction torque so that the rpm of the chuck can be regulated from maintaining the measured reaction torque at a maximum.

    摘要翻译: 添加了手动操作的钻孔工具(例如锤钻)的敲击打击具有包含用于围绕其轴旋转工具夹头(9)的电动马达的壳体(2),用于控制卡盘的转速的控制装置(C) (9),其由位于所述壳体(2)的外部的开关(5)启动的所述电动机(3)操作;以及冲击吹风机构,用于周期性地将轴向吹送施加到固定在所述壳体 卡盘(9)。 电动机(3)联接到用于测量反作用转矩的装置(12)。 控制装置(C)连接到评估单元(E),该评估单元连接到用于测量反作用力矩的装置(12),使得能够调节卡盘的转速以将测量的反作用转矩保持在最大值。

    Rock drill
    5.
    发明授权
    Rock drill 有权
    摇滚钻

    公开(公告)号:US06283232B1

    公开(公告)日:2001-09-04

    申请号:US09528598

    申请日:2000-03-20

    IPC分类号: E21B1040

    摘要: A rock drill including a drill stem (2), major cutting edges (5, 6) extending substantially over a diameter of the drill stem (2) and projecting beyond the end face (3) of the drill stem, and at least one minor cutting edge (9, 10) extending substantially in a radial direction and provided on at least one elongate cutting body (7, 8) which projects beyond the end face (3), with the minor cutting edge (9, 10) being located, at a contemplated rotational direction (R) of the drill (1) about the drill axis (A), in front of a corresponding major cutting edge (5, 6) adjacent to a main discharge groove (13) for drilling dust, and with the elongate cutting body (7, 8) having a cutting surface (11) tapering from the minor cutting edge (9) toward the end face (3) of the drill stem (2) and having at least one inclination surface (12) adjacent to the circumference of the drill stem (2) and inclined toward the circumference of the drill stem and with respect to a radial extension of the minor cutting edge (9), in a direction opposite the drill rotational direction (R).

    摘要翻译: 包括钻杆(2)的凿岩机,基本上在钻杆杆(2)的直径上延伸并突出超过钻杆的端面(3)的主切削刃(5,6)以及至少一个次要 切割边缘(9,10)基本上沿径向方向延伸并且设置在突出超过端面(3)的至少一个细长切割体(7,8)上,其中副切割边缘(9,10)位于, 在相对于用于钻出粉尘的主排放槽(13)的相应的主切削刃(5,6)的前方,钻头(1)围绕钻杆轴线(A)的预期的旋转方向(R) 所述细长切割体(7,8)具有从所述副切割刃(9)朝向所述钻杆(2)的端面(3)渐缩的切割表面(11),并且具有邻近的至少一个倾斜表面(12) 到钻杆(2)的圆周并且朝着钻杆的圆周倾斜并且相对于小切削的径向延伸 沿着与钻头旋转方向(R)相反的方向的边缘(9)。

    Method and device for the measurement of force by a fiber optics system
by evaluating phase shift of light waves
    6.
    发明授权
    Method and device for the measurement of force by a fiber optics system by evaluating phase shift of light waves 失效
    通过评估光波相移来测量光纤系统的力的方法和装置

    公开(公告)号:US5308973A

    公开(公告)日:1994-05-03

    申请号:US795725

    申请日:1991-11-21

    IPC分类号: G01L1/24 H01J5/16

    CPC分类号: G01L1/243

    摘要: A method and the device for fiber-optic measurement of the absolute value of the pretensioning in a highly loaded mechanical structural component part are based on the measurement of the phase displacement of a light wave caused by the strain-induced birefringence in a single-mode light waveguide 4 which is embedded between two metallic disks or washers 3a, 3b. Since the measurement results are ambiguous modulo-2.pi., serial or simultaneous measurement with two light wavelengths .lambda..sub.1, .lambda..sub.2 is used according to a first method variant of the invention. The quantity of 2.pi. periods can be unequivocally determined within a predetermined measuring range by means of comparing the two measurement results. The evaluation is preferably effected according to a quadrature or phase step method, known per se. According to second method variant, the light waveguide 4 is irradiated with polarized white light. The phase difference of the two linear modes due to the influence of force on the structural component part is compensated for in a compensation device 20. The control signal required for the compensation of the path difference is evaluated as a measurement for the force. The compensation method has the advantage that no monochromatic light sources are required.

    摘要翻译: 用于光纤测量的方法和用于在高负荷机械结构部件中的预张紧绝对值的装置基于由单模中的应变引起的双折射引起的光波的相位位移的测量 光波导4嵌入在两个金属盘或垫圈3a,3b之间。 由于测量结果是模2 pi,根据本发明的第一种方法变体使用具有两个光波长λ1,λ2的串联或同时测量。 通过比较两个测量结果,可以在预定的测量范围内明确地确定2个pi周期的数量。 评估优选根据本身已知的正交或相位步骤方法进行。 根据第二方法变型,用偏振白光照射光波导4。 在补偿装置20中补偿由于力对结构部件的影响的两个线性模式的相位差。补偿路径差所需的控制信号被评估为力的测量值。 补偿方法的优点是不需要单色光源。