Pneumatic hammer mechanism
    21.
    发明授权
    Pneumatic hammer mechanism 有权
    气动锤机构

    公开(公告)号:US08955615B2

    公开(公告)日:2015-02-17

    申请号:US12697075

    申请日:2010-01-29

    IPC分类号: B25D9/04 B25D17/06 B25D11/12

    摘要: A pneumatic hammer mechanism is disclosed. The hammer mechanism includes: a flying mass; an impact surface which limits a movement of the flying mass along the impact axis in the impact direction; an exciting piston which limits a movement of the flying mass opposite from the impact direction; a pneumatic chamber between the flying mass and exciting piston; and a drive for periodically moving the exciting piston with a stroke along the impact axis. The following inequality applies for the mass (m2) of the flying mass, a cross-sectional area (A) of the pneumatic chamber, the maximum length (L) of the pneumatic chamber, the stroke (H) of the exciting piston and an impact coefficient (q), if the hammer mechanism has an impact frequency (f) during percussive operation: L κ 2 ⁢ ( L - H ) κ · κ L - H + ( L κ 2 ⁢ ( L - H ) κ - 1 ) · 1 - q q ⁢ N 2 ⁢ π ⁢ ⁢ H ⁢ ≥ ! ⁢ m 2 A · p 0 · N 2 ⁢ f 2 where the parameter N is at least 4, po designates the ambient pressure and κ the isentropic coefficient of gas in the pneumatic chamber.

    摘要翻译: 公开了一种气动锤机构。 锤击机构包括:飞行块; 撞击表面,其限制飞行质量沿冲击轴线在冲击方向上的运动; 一个令人兴奋的活塞,其限制飞行物体与撞击方向相反的运动; 在飞行质量块和激励活塞之间的气动室; 以及用于沿着冲击轴线周期性地沿着冲程移动激发活塞的驱动器。 以下不等式适用于飞行质量的质量(m2),气动室的横截面积(A),气动室的最大长度(L),励磁活塞的行程(H)和 冲击系数(q),如果锤击机构在冲击操作期间具有冲击频率(f):L&kgr; 2(L-H)&kgr; ·&kgr L-H +(L&Kgr; 2(L-H)&kgr; -1)·1-q q N 2&pgr; 悍H≥! m 2 A·p 0·N 2 f 2其中参数N至少为4,po表示环境压力&kgr; 气动室中气体的等熵系数。

    Pneumatic hammer mechanism
    22.
    发明授权
    Pneumatic hammer mechanism 有权
    气动锤机构

    公开(公告)号:US08616301B2

    公开(公告)日:2013-12-31

    申请号:US12697051

    申请日:2010-01-29

    IPC分类号: E21B4/14

    CPC分类号: B25D11/125 B25D2250/245

    摘要: A pneumatic hammer mechanism is disclosed. The hammer mechanism features: a flying mass, which is movable along an impact axis; an impact surface, which limits a movement of the flying mass along the impact axis in the impact direction; an exciting piston, which limits a movement of the flying mass along the impact axis opposite from the impact direction; a pneumatic chamber between the flying mass and exciting piston; and a drive for periodically moving the exciting piston with a stroke along the impact axis. The flying mass is excited to a periodic movement between the impact surface and a minimum approach of the exciting piston. A length ratio of the maximum length of the pneumatic chamber to the stroke is selected as less than 1.55.

    摘要翻译: 公开了一种气动锤机构。 锤子机构具有:可沿着冲击轴线移动的飞行质量块; 撞击表面,其限制飞行质量沿冲击轴线在冲击方向上的运动; 一个令人兴奋的活塞,其限制飞行质量沿冲击轴线与冲击方向相反的运动; 在飞行质量块和激励活塞之间的气动室; 以及用于沿着冲击轴线周期性地沿着冲程移动激发活塞的驱动器。 飞行质量被激发到冲击表面与激发活塞的最小接近之间的周期性运动。 气动室的最大长度与行程的长度比选择为小于1.55。

    Hand-held power tool with pneumatic percussion mechanism
    23.
    发明授权
    Hand-held power tool with pneumatic percussion mechanism 有权
    带气动打击机构的手持电动工具

    公开(公告)号:US07950471B2

    公开(公告)日:2011-05-31

    申请号:US12075053

    申请日:2008-03-06

    IPC分类号: B23B45/16

    摘要: A hand-held power tool includes a percussion power tool includes a percussion piston (5) for applying blows to an anvil (8) axially displaceable in a guide tube (6) within limits defined by two, spaced from each other, stops (9a, 9b) arranged in the guide tube (6), a pneumatic percussion mechanism (2) for driving the percussion piston (5), an air spring (3) for connecting the percussion piston (5) with the percussion mechanism (2), and an impact ring (12) arranged coaxially with the anvil (8) outwardly thereof and having spaced from each other, inner radical flanks (14) located on opposite axial sides of the outer radial collar (11) provided on the anvil (8), with the impact ring (12) freely axially displaceable, within limits, relative to the outer radial collar (11) and having an outer diameter smaller than a guiding inner diameter of the guide tuber (6), and with a mass ratio of the impact ring (12) to the anvil (8) being equal at least 0.25.

    摘要翻译: 一种手持式电动工具包括一个冲击动力工具,该冲击力电动工具包括冲击活塞(5),该冲击活塞(5)用于在由两个彼此间隔开的止挡件(9a)限定的限度内向导向管(6)中轴向移动的砧座(8) ,9b),用于驱动冲击活塞(5)的气动冲击机构(2),用于将冲击活塞(5)与冲击机构(2)连接的空气弹簧(3) 以及与所述砧座(8)向外同轴并且彼此间隔开的冲击环(12),位于设置在所述砧座(8)上的所述外径向轴环(11)的相对的轴向侧上的内部自由侧面(14) ,所述冲击环(12)相对于所述外径向轴环(11)在极限内可自由地轴向移动并且具有小于所述导块(6)的引导内径的外径,并且所述冲击环 冲击环(12)至砧座(8)等于至少0.25。

    Hand-held power tool with pneumatic percussion mechanism
    24.
    发明申请
    Hand-held power tool with pneumatic percussion mechanism 有权
    带气动打击机构的手持电动工具

    公开(公告)号:US20080217040A1

    公开(公告)日:2008-09-11

    申请号:US12075053

    申请日:2008-03-06

    IPC分类号: B25D9/06 B25D9/04

    摘要: A hand-held power tool includes a percussion power tool includes a percussion piston (5) for applying blows to an anvil (8) axially displaceable in a guide tube (6) within limits defined by two, spaced from each other, stops (9a, 9b) arranged in the guide tube (6), a pneumatic percussion mechanism (2) for driving the percussion piston (5), an air spring (3) for connecting the percussion piston (5) with the percussion mechanism (2), and an impact ring (12) arranged coaxially with the anvil (8) outwardly thereof and having spaced from each other, inner radical flanks (14) located on opposite axial sides of the outer radial collar (11) provided on the anvil (8), with the impact ring (12) freely axially displaceable, within limits, relative to the outer radial collar (11) and having an outer diameter smaller than a guiding inner diameter of the guide tuber (6), and with a mass ratio of the impact ring (12) to the anvil (8) being equal at least 0.25.

    摘要翻译: 一种手持电动工具包括一个冲击电动工具,其包括一个冲击活塞(5),该冲击活塞(5)用于在由两个彼此间隔开的止动件(9)限定的限度内向在导向管(6)中轴向移动的砧座(8) a),布置在导管(6)内的气动冲击机构(2),用于驱动冲击活塞(5)的空气弹簧(3),用于将冲击活塞(5)与冲击机构 )以及与所述砧座(8)同轴并与其间隔开并且彼此间隔开的冲击环(12),位于设置在所述砧座上的所述外径向轴环(11)的相对的轴向侧上的内侧根部侧面(14) 如图8所示,冲击环(12)可相对于外径向轴环(11)在限制范围内自由地轴向移动并且具有小于导块(6)的导向内径的外径,并且质量比 冲击环(12)至砧座(8)的距离等于至少0.25。

    Hand-held power tool with an air spring percussion mechanism having a crank drive
    25.
    发明申请
    Hand-held power tool with an air spring percussion mechanism having a crank drive 审中-公开
    具有空气弹簧冲击机构的手持式电动工具具有曲柄驱动

    公开(公告)号:US20080047720A1

    公开(公告)日:2008-02-28

    申请号:US11811318

    申请日:2007-06-07

    IPC分类号: B23Q5/033

    摘要: A hand-held power tool has a air spring percussion mechanism which is suitable to provide for generating axial impacts by an impact piston reciprocating along an impact axis and which is driven by a crank pin (4) of a rotatably supported eccentric (5) whose mass distribution with respect to an eccentric axis (E) has an unbalance (U) which is offset in the eccentric plane extending perpendicular to the eccentric axis (E) by an angle of unbalance (φ) in the range of 70° to 90° relative to the crank pin (4) which is spaced from the eccentric axis (A) by a distance equal to the crank radius (K).

    摘要翻译: 手持式电动工具具有空气弹簧冲击机构,其适于通过沿着冲击轴线往复运动的冲击活塞产生轴向冲击,该冲击活塞由可旋转地支撑的偏心轮(5)的曲柄销(4)驱动, 相对于偏心轴(E)的质量分布具有不平衡度(U),其在垂直于偏心轴线(E)延伸的偏心平面偏移了70°至90°的不平衡角(phi) 相对于与偏心轴线(A)间隔距离等于曲轴半径(K)的曲柄销(4)。

    Dimmer circuit for gas discharge lamps having electronic ballasts
    26.
    发明授权
    Dimmer circuit for gas discharge lamps having electronic ballasts 失效
    具有电子镇流器的气体放电灯的调光电路

    公开(公告)号:US5500573A

    公开(公告)日:1996-03-19

    申请号:US392502

    申请日:1995-02-23

    申请人: Reinhard Schulz

    发明人: Reinhard Schulz

    摘要: A dimmer circuit for gas discharge lamps, having an electronic ballast equipped with a first converter circuit which first transforms an applied voltage by means of switching transistors into a first high-frequency alternating voltage. This first high-frequency alternating voltage is fed indirectly or directly to the gas discharge lamp. The dimmer circuit also includes a second converter circuit connected upstream. The second converter circuit is arranged so as to transform an input voltage into a second high-frequency alternating voltage and is also arranged so as to rectify the second high-frequency alternating voltage to produce a rectified output voltage. After rectification, the rectified output voltage is fed to the first converter circuit as the above-mentioned applied voltage. The second converter circuit contains switching means which, operated manually or by remote control, influence the magnitude of the rectified output voltage from the second converter circuit.

    摘要翻译: 一种用于气体放电灯的调光电路,具有装备有第一转换器电路的电子镇流器,该第一转换器电路首先通过将晶体管转换为第一高频交流电压来施加电压。 该第一高频交流电压被间接地或直接地供给到气体放电灯。 调光电路还包括连接在上游的第二转换器电路。 第二转换器电路被布置成将输入电压变换为第二高频交流电压,并且还被布置为对第二高频交流电压进行整流以产生整流输出电压。 整流后,整流后的输出电压作为上述施加电压被馈送到第一转换器电路。 第二转换器电路包括手动或通过遥控操作来影响来自第二转换器电路的整流输出电压的大小的开关装置。

    Polishing stack for thermoplastic films or sheets
    27.
    发明授权
    Polishing stack for thermoplastic films or sheets 失效
    用于热塑性薄膜或薄片的抛光叠层

    公开(公告)号:US5464363A

    公开(公告)日:1995-11-07

    申请号:US192602

    申请日:1994-02-07

    申请人: Reinhard Schulz

    发明人: Reinhard Schulz

    CPC分类号: B29C43/24

    摘要: The invention relates to a polishing stack with at least one fixed and one moveable polishing roll for polishing a plastic sheet leaving a wide extrusion die. A device is provided that preloads the frames and the bearings and acts on a roll gap adjusting device which includes a pinion gear arrangement and drive for finely adjusting the roll gap between the fixed and moveable rolls. The polishing stack in preferred form includes a center fixed roll and top and bottom adjustable rolls.

    摘要翻译: 本发明涉及一种具有至少一个固定和一个可动的抛光辊的抛光叠层,用于抛光离开宽的挤出模头的塑料片。 提供了一种装置,其预加载框架和轴承并且作用在辊间隙调节装置上,辊间隙调节装置包括小齿轮装置和用于微调固定辊和可移动辊之间的辊间隙的驱动装置。 优选形式的抛光叠层包括中心固定辊和顶部和底部可调节辊。

    Pneumatic hammer mechanism and control method
    28.
    发明授权
    Pneumatic hammer mechanism and control method 有权
    气动锤机构及控制方法

    公开(公告)号:US09132541B2

    公开(公告)日:2015-09-15

    申请号:US12697066

    申请日:2010-01-29

    IPC分类号: E21B1/38 B25D11/12 B25D11/00

    摘要: A pneumatic hammer mechanism is disclosed. The hammer mechanism features: a flying mass, which is movable along an impact axis; an impact surface, which limits a movement of the flying mass along the impact axis in the impact direction; an exciting piston, which limits a movement of the flying mass along the impact axis opposite from the impact direction; a pneumatic chamber between the flying mass and exciting piston; a drive for periodically moving the exciting piston with a stroke along the impact axis, wherein the flying mass is excited to a periodic movement between the impact surface and exciting piston. The stroke is selected as a function of a maximum length of the pneumatic chamber such that the periodic movement of the flying mass on the path between an impact on the impact surface and a minimum approach of the exciting piston intermittently has a velocity of zero.

    摘要翻译: 公开了一种气动锤机构。 锤子机构具有:可沿着冲击轴线移动的飞行质量块; 撞击表面,其限制飞行质量沿冲击轴线在冲击方向上的运动; 一个令人兴奋的活塞,其限制飞行质量沿冲击轴线与冲击方向相反的运动; 在飞行质量块和激励活塞之间的气动室; 用于沿冲击轴线周期性地移动激发活塞的驱动器,其中飞行质量被激发到冲击表面和激励活塞之间的周期性运动。 选择行程作为气动室的最大长度的函数,使得飞行质量在冲击表面上的冲击和间歇地激励活塞的最小接近之间的路径上的周期性运动具有零速度。

    Hand-held power tool with a pneumatic percussion mechanism
    29.
    发明申请
    Hand-held power tool with a pneumatic percussion mechanism 有权
    带手动电动工具的气动打击机构

    公开(公告)号:US20090020299A1

    公开(公告)日:2009-01-22

    申请号:US12214132

    申请日:2008-06-16

    IPC分类号: B25D11/12

    摘要: A hand-held power tool includes a motor-driven percussion mechanism including a guide tube (21), a reciprocating driving member (22) displaceable in the guide tube (21) for driving, via a gas spring, an impact member (23) likewise displaceable in the guide tube (21) a motor-driven eccentric wheel (17) rotatable about an axis (D) which is spaced from the percussion mechanism axis (S) in a direction perpendicular to the percussion mechanism axis (S) by a distance (X), and a connection rod (29) eccentrically supported on the eccentric wheel (17) and connected to the driving member (22) for converting a rotational movement of the eccentric wheel (17) into a reciprocating movement of the driving member (22).

    摘要翻译: 手持式电动工具包括电动打击机构,其包括导管(21),可在导管(21)中移动的往复驱动构件(22),用于经由气弹簧驱动冲击构件(23) 同样在引导管(21)中可移动的电动偏心轮(17)可绕垂直于冲击机构轴线(S)的方向与冲击机构轴线(S)间隔开的轴线(D)旋转, 距离(X)和偏心轮(17)偏心地支撑并连接到驱动构件(22)的连接杆(29),用于将偏心轮(17)的旋转运动转换成驱动构件 (22)。

    Cup-shaped rock drill head
    30.
    发明授权
    Cup-shaped rock drill head 失效
    杯形凿岩头

    公开(公告)号:US07059432B2

    公开(公告)日:2006-06-13

    申请号:US10686852

    申请日:2003-10-15

    IPC分类号: E21B43/34

    CPC分类号: E21B10/36

    摘要: A cup-shaped drill head with an inner conical surface (2) for force-locking connection with an exterior conical surface (3) of a driving drill shaft (4), which at the leading end changes over into a cup base (5) with a center point (P), whereby in the change over from the cup base (5) to the inner conical surface (2) a lesser curvature (K) is present than at the center point (P).

    摘要翻译: 一种具有内锥形表面(2)的杯形钻头,用于与驱动钻杆轴(4)的外锥形表面(3)的力锁定连接,其在前端改变成杯形基座(5) 具有中心点(P),由此在从杯形基部(5)向内锥形表面(2)的转换中存在比在中心点(P)处更小的曲率(K)。