论文部分内容阅读
用扭矩搬手拧紧螺栓时,准确地测定螺栓的伸长量无疑是十分重要的。英国Ratabolt公司研制的在头部装有高精度机械应变仪的螺栓,可以自动测定其伸长量。这种螺栓称为“旋转螺栓”。如图所示,螺栓中心的销子准确地固定在螺栓中心孔的底部。在销头下方,装着可以转动的不锈钢圆板,在销头下方和螺栓上方之间,留有计算得非常准确的间隙,所以这个圆板可以用手自由地转动。
When torque is used to tighten the bolt, it is undoubtedly important to accurately measure the elongation of the bolt. British Ratabolt company developed in the head with high precision mechanical strain gauge bolt, can automatically measure the elongation. This type of bolt is called a “rotating bolt.” As shown, the center pin of the bolt is exactly fixed to the bottom of the center hole of the bolt. Below the pin head, there is a stainless steel disk that can be turned, leaving a very accurate gap between the underside of the pin head and the top of the bolt so that the disk can be freely rotated by hand.