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公开(公告)号：US20100132481A1
公开(公告)日：2010-06-03
申请号：US12449570
申请日：2008-04-11
IPC分类号： G01L5/24
CPC分类号： G01L5/0042 , G01L5/24 , G01L25/003
摘要： A variable torque-rate test point for the performance testing of rotary tools for threaded fasteners comprises a screw-threaded bolt (1) having a moment of inertia comparable to that of a bolt to be tightened using the rotary tool. The bolt (1) is tightened in the test joint against a torque-rate adjustment device (6) which can be adjusted to simulate a hard or a soft joint. The adjustment device (6) comprises a washer portion (7) beneath the bolt head (4), at least one spring beam (8) extending from a reaction point (9) radially outwardly of the bolt (1), and a pivotal bearing member (10) or other pivot means at a mid portion of the beam (8). The beam (8) flexes as it extends in cantilever over the pivot point, and that flexure can be adjusted to vary the torque-rate of the test joint by varying the distance between the pivot point and the rotary axis of the bolt (1).
摘要翻译： 用于螺纹紧固件的旋转工具的性能测试的可变扭矩率测试点包括螺旋螺栓（1），其具有与使用旋转工具紧固的螺栓的惯性矩相当的惯性矩。 螺栓（1）在测试接头中被紧固在扭矩调节装置（6）上，扭矩调节装置（6）可被调节以模拟硬接头或软接头。 调节装置（6）包括在螺栓头（4）下方的垫圈部分（7），从螺栓（1）的径向向外的反应点（9）延伸的至少一个弹簧梁（8）和枢转轴承 构件（10）或其他枢转装置在梁（8）的中部。 梁（8）随着悬臂在枢轴点上的延伸而弯曲，并且可以通过改变枢轴点和螺栓（1）的旋转轴线之间的距离来调整弯曲以改变测试接头的扭矩速率， 。
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公开(公告)号：US08418569B2
公开(公告)日：2013-04-16
申请号：US12449570
申请日：2008-04-11
IPC分类号： G01L5/24
CPC分类号： G01L5/0042 , G01L5/24 , G01L25/003
摘要： A variable torque-rate test point for the performance testing of rotary tools for threaded fasteners comprises a screw-threaded bolt (1) having a moment of inertia comparable to that of a bolt to be tightened using the rotary tool. The bolt (1) is tightened in the test joint against a torque-rate adjustment device (6) which can be adjusted to simulate a hard or a soft joint. The adjustment device (6) comprises a washer portion (7) beneath the bolt head (4), at least one spring beam (8) extending from a reaction point (9) radially outwardly of the bolt (1), and a pivotal bearing member (10) or other pivot at a mid portion of the beam (8). The beam (8) flexes as it extends in cantilever over the pivot point, and that flexure can be adjusted to vary the torque-rate of the test joint by varying the distance between the pivot point and the rotary axis of the bolt (1).
摘要翻译： 用于螺纹紧固件的旋转工具的性能测试的可变扭矩率测试点包括螺旋螺栓（1），其具有与使用旋转工具紧固的螺栓的惯性矩相当的惯性矩。 螺栓（1）在测试接头中被紧固在扭矩调节装置（6）上，扭矩调节装置（6）可被调节以模拟硬接头或软接头。 调节装置（6）包括在螺栓头（4）下方的垫圈部分（7），从螺栓（1）的径向向外的反应点（9）延伸的至少一个弹簧梁（8）和枢转轴承 构件（10）或其他枢轴在梁（8）的中部。 梁（8）随着悬臂在枢轴点上的延伸而弯曲，并且可以通过改变枢轴点和螺栓（1）的旋转轴线之间的距离来调整弯曲以改变测试接头的扭矩率， 。
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公开(公告)号：US08720283B2
公开(公告)日：2014-05-13
申请号：US13574957
申请日：2011-01-10
IPC分类号： G01L5/24
CPC分类号： G01L25/003 , G01C17/00 , G01L5/243
摘要： The invention provides a variable torque-rate test joint for the performance testing of rotary tools for threaded fasteners. In a typical test routine a nut is repeatedly tightened by the tool and after each tightening the nut must be released and run back to its start position. The invention provides a means for rapidly releasing the pressure on the tightened nut so that it can be run back quickly and easily. The variable joint is supported by a reaction surface that is the operative face of a piston and cylinder assembly seated on a shoulder fast to a shank of the threaded fastener. A hydraulic control is provided for the piston and cylinder assembly including means for hydraulically extending the piston from the cylinder to a fixed maximum extension which defines a test position of the reaction surface, and means for hydraulically retracting the piston back into the cylinder to remove the pressure from the nut at the end of the test. During tightening the piston is extended and preferably hydraulically locked.
摘要翻译： 本发明提供了用于螺纹紧固件的旋转工具的性能测试的可变扭矩率测试接头。 在典型的测试程序中，螺母被工具重复拧紧，并且在每次拧紧螺母之后必须释放螺母并且回到其起始位置。 本发明提供了一种用于快速释放紧固螺母上的压力使其能够快速且容易地回跑的装置。 可变接头由反应表面支撑，反作用表面是快速位于螺纹紧固件的柄上的活塞和气缸组件的操作面。 提供了一种用于活塞和气缸组件的液压控制装置，其包括用于将活塞从气缸液压地延伸到限定反应表面的测试位置的固定最大延伸部的装置，以及用于将活塞液压地缩回到气缸中以移除 测试结束时螺母的压力。 在紧固期间，活塞延伸并优选液压锁定。
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公开(公告)号：US08511181B2
公开(公告)日：2013-08-20
申请号：US13510462
申请日：2010-11-17
申请人： Adrian James Duffin , John Edward Burton , Peter William Everitt , Neil McDonald , Andrew Wilkins
发明人： Adrian James Duffin , John Edward Burton , Peter William Everitt , Neil McDonald , Andrew Wilkins
IPC分类号： B25B23/14
CPC分类号： G01L3/1464 , G01L3/1457 , G01L5/0042 , G01L5/24 , G01L25/003
摘要： In a variable torque rate test joint, screw-threaded first and second elements are rotated relative to one another by a tool under test. At least one spring beam is cantilevered over a pivot point to exert an axial force between the first and second elements and the torque rate of the test joint can be varied by moving the pivot point to change the axial force. The first element may be a shaft that is fixed during testing and the second element is a nut rotatably mounted on the shaft, whereby the element rotated by the tool has a minimal moment of inertia. Whichever of the first and second elements is held stationary during the test may be mounted in a hub that is locked during the test but can be rotated at the end of the test to reset the test joint. Measurements may be made of the torque and the rotation angle to derive an actual torque rate of the joint, which allows correction of errors by moving the pivot point.
摘要翻译： 在可变转矩测试接头中，螺纹的第一和第二元件通过被测工具相对于彼此旋转。 至少一个弹簧梁悬挂在枢轴点上以在第一和第二元件之间施加轴向力，并且可以通过移动枢轴点来改变测试接头的扭矩来改变轴向力。 第一元件可以是在测试期间被固定的轴，并且第二元件是可旋转地安装在轴上的螺母，由此由工具旋转的元件具有最小的惯性矩。 第一和第二元件中的任何一个在测试期间保持固定可以安装在在测试期间被锁定的毂中，但是可以在测试结束时旋转以复位测试接头。 可以测量扭矩和旋转角度以导出接头的实际扭矩率，这允许通过移动枢转点来校正误差。
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公开(公告)号：US20130125666A1
公开(公告)日：2013-05-23
申请号：US13510462
申请日：2010-11-17
申请人： Adrian James Duffin , John Edward Burton , Peter William Everitt , Neil McDonald , Andrew Wilkins
发明人： Adrian James Duffin , John Edward Burton , Peter William Everitt , Neil McDonald , Andrew Wilkins
IPC分类号： G01L3/14
CPC分类号： G01L3/1464 , G01L3/1457 , G01L5/0042 , G01L5/24 , G01L25/003
摘要： In a variable torque rate test joint, screw-threaded first and second elements are rotated relative to one another by a tool under test. At least one spring beam is cantilevered over a pivot point to exert an axial force between the first and second elements and the torque rate of the test joint can be varied by moving the pivot point to change the axial force. The first element may be a shaft that is fixed during testing and the second element is a nut rotatably mounted on the shaft, whereby the element rotated by the tool has a minimal moment of inertia. Whichever of the first and second elements is held stationary during the test may be mounted in a hub that is locked during the test but can be rotated at the end of the test to reset the test joint. Measurements may be made of the torque and the rotation angle to derive an actual torque rate of the joint, which allows correction of errors by moving the pivot point.
摘要翻译： 在可变转矩测试接头中，螺纹的第一和第二元件通过被测工具相对于彼此旋转。 至少一个弹簧梁悬挂在枢轴点上以在第一和第二元件之间施加轴向力，并且可以通过移动枢轴点来改变测试接头的扭矩来改变轴向力。 第一元件可以是在测试期间被固定的轴，并且第二元件是可旋转地安装在轴上的螺母，由此由工具旋转的元件具有最小的惯性矩。 第一和第二元件中的任何一个在测试期间保持固定可以安装在在测试期间被锁定的毂中，但是可以在测试结束时旋转以复位测试接头。 可以测量扭矩和旋转角度以导出接头的实际扭矩率，这允许通过移动枢转点来校正误差。
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公开(公告)号：US20130036835A1
公开(公告)日：2013-02-14
申请号：US13574957
申请日：2011-01-10
IPC分类号： B25B23/14
CPC分类号： G01L25/003 , G01C17/00 , G01L5/243
摘要： The invention provides a variable torque-rate test joint for the performance testing of rotary tools for threaded fasteners. In a typical test routine a nut is repeatedly tightened by the tool and after each tightening the nut must be released and run back to its start position. The invention provides a means for rapidly releasing the pressure on the tightened nut so that it can be run back quickly and easily. The variable joint is supported by a reaction surface that is the operative face of a piston and cylinder assembly seated on a shoulder fast to a shank of the threaded fastener. A hydraulic control is provided for the piston and cylinder assembly including means for hydraulically extending the piston from the cylinder to a fixed maximum extension which defines a test position of the reaction surface, and means for hydraulically retracting the piston back into the cylinder to remove the pressure from the nut at the end of the test. During tightening the piston is extended and preferably hydraulically locked.
摘要翻译： 本发明提供了用于螺纹紧固件的旋转工具的性能测试的可变扭矩率测试接头。 在典型的测试程序中，螺母被工具重复地拧紧，并且在每次拧紧螺母之后必须释放螺母并且回到其起始位置。 本发明提供了一种用于快速释放紧固螺母上的压力使其能够快速且容易地回跑的装置。 可变接头由反应表面支撑，反作用表面是快速位于螺纹紧固件的柄上的活塞和气缸组件的操作面。 提供了一种用于活塞和气缸组件的液压控制装置，其包括用于将活塞从气缸液压地延伸到限定反应表面的测试位置的固定最大延伸部的装置，以及用于将活塞液压地缩回到气缸中以移除 测试结束时螺母的压力。 在紧固期间，活塞延伸并优选液压锁定。
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公开(公告)号：US06595034B1
公开(公告)日：2003-07-22
申请号：US09674619
申请日：2001-01-22
IPC分类号： G01L310
CPC分类号： G01L25/003
摘要： An apparatus for celibrating rotary power assembly impulse tools comprises a variable rate simulated test joint in which a rotary shaft is braked by brake shoes in direct contact with the shaft under the control of a computer. The braking torque applied to the shaft by the brake shoes is gradually increased while the shaft is driven at free-running speed by the tool being calibrated, and the pulsed output of the impulse tool is monitored. The monitored pulsed output is initially erratic, but settles down to a regular stream of output pulses. The first pulse of that regular stream can be identified. The magnitude of the braking torque is then increased as a linear function of time with a predefined gradient representative of the torque rate of the joint being simulated, commencing with the identified first pulse. The apparatus is the first such apparatus to be able to provide thoroughly reliable and consistent torque calibration for impulse tools.
摘要翻译： 用于振动旋转动力组件脉冲工具的装置包括可变速率模拟测试接头，其中旋转轴在计算机的控制下通过与轴直接接触的制动蹄制动。 在通过校准的工具以自由运行的速度驱动轴时，由制动瓦施加到轴的制动力矩逐渐增加，并且脉冲工具的脉冲输出被监测。 监控的脉冲输出最初是不稳定的，但是稳定在常规的输出脉冲流。 可以识别该常规流的第一个脉冲。 然后随着所识别的第一脉冲开始，制动转矩的大小作为时间的线性函数被增加，具有表示正在模拟的接头的转矩速率的预定梯度。 该装置是能够为脉冲工具提供彻底可靠和一致的扭矩校准的第一种这样的装置。
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