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TEST DEVICE FOR DETERMINING THE FRICTION AND PRESTRESS VALUES OF SCREWED CONNECTIONS

机译:用于确定螺纹连接的摩擦力和预应力值的测试装置

摘要

The test device for determining the friction and prestress values of screwed connections consists of a transportable device having a central support plate (1), whereby shearing force sensors and axial force sensors (7, 8, 11) are arranged on both sides of said plate. The sensors are screwed between an application plate (2) and a torque receptor plate (3) and can be replaced or provided with adapters (4, 5). The sensors (7, 8, 11) can be extension sensors or piezoelectric sensors. The amplifiers of the piezoelectric sensors can be miniaturized in such a way that they can also be placed in the central support plate (1). During tightening, the following values are determined: total torque Mtot, head friction torque MK, thread friction torque MG, prestress force Fz, to obtain the following values: thread friction value ν¿G? and head friction value νK.
机译:用于确定螺纹连接的摩擦力和预应力值的测试设备由具有中央支撑板(1)的可移动设备组成,在该支撑板的两侧均设有剪切力传感器和轴向力传感器(7、8、11) 。传感器拧在施加板(2)和扭矩接收板(3)之间,可以更换或配备适配器(4、5)。传感器(7、8、11)可以是扩展传感器或压电传感器。压电传感器的放大器可以小型化,使得它们也可以放置在中央支撑板(1)中。在拧紧期间,确定以下值:总扭矩Mtot,头部摩擦扭矩MK,螺纹摩擦扭矩MG,预应力Fz,以获得以下值:螺纹摩擦值ν¿G?头部摩擦值νK。

著录项

  • 公开/公告号EP1254355B1

    专利类型

  • 公开/公告日2009-06-24

    原文格式PDF

  • 申请/专利权人 KISTLER HOLDING AG;

    申请/专利号EP20010951168

  • 发明设计人 ENGELER PAUL;HAAB HANS RUDOLF;

    申请日2001-02-06

  • 分类号G01L5/24;

  • 国家 EP

  • 入库时间 2022-08-21 19:19:14

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