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扭矩扳手使用及检验规范

来源: 日期:2020-07-30 发布人:admin

一、扭矩扳手的正确使用

1、 Correct use of torque wrench
1.扭矩扳手的施加扭矩的过程以及结构:用扭矩扳手施加扭矩时,通过与扭矩扳手的棘轮头稳固连接的套筒连接需要施加扭矩的螺母/螺栓,手掌握在扭矩扳手手柄上的有效刻度线,顺时针或逆时针加力,这个力带动螺母/螺栓,当螺母/螺栓紧固,并所带的扭矩与扭矩扳手设定的扭矩相等时,扭矩扳手的棘轮带动扭矩扳手的头部,把扭矩传递到触发器,触发器向右侧滑动(卸力)。当滚柱碰到管后,会发出“咔哒”的信号,听到信号后立即停止加力,取下扭矩扳手,即完成施加扭矩过程。
1. The process and structure of torque application of torque wrench: when applying torque with torque wrench, the nut / bolt required to be applied torque is connected through the sleeve firmly connected with the ratchet head of the torque wrench. The palm of the hand holds the effective scale mark on the handle of the torque wrench, and applies force clockwise or anticlockwise. This force drives the nut / bolt. When the nut / bolt is tightened, the torque and torsion are carried When the torque set by the torque wrench is equal, the ratchet wheel of the torque wrench drives the head of the torque wrench to transmit the torque to the trigger, and the trigger slides to the right (unloading force). When the roller touches the pipe, it will send out a "click" signal. After hearing the signal, stop the force application immediately and take down the torque wrench to complete the process of applying torque.
2.扭矩扳手设定值调整大致有2种形式:
2. There are two ways to adjust the setting value of torque wrench
电动扭矩扳手
其一,属于预调式扭矩扳手的调整方法。松开尾部锁夹,根据需要的设定值旋转尾部的补助分度轮(顺时针增加扭矩,逆时针减少扭矩,使分度轮的刻度与扭矩扳手得设定值相符,扭矩扳手校验仪校验。
First, it belongs to the adjustment method of the preset torque wrench. Loosen the tail lock clamp, rotate the auxiliary indexing wheel at the tail according to the required setting value (increase the torque clockwise and reduce the torque anticlockwise, so that the graduation wheel scale is consistent with the set value of the torque wrench, and the torque wrench calibrator is calibrated.
其二,属于定值式扭矩扳手的调整。松开后盖,相应得六角匙松开锁紧螺钉,调整工具旋转推压环设定一个扭矩值,用扭矩测试仪校验扭矩,固锁紧螺钉,锁紧后盖。
Second, it belongs to the adjustment of fixed value torque wrench. Loosen the back cover, loosen the locking screw with the corresponding hexagon key, set a torque value by rotating the push ring of the adjusting tool, and then use the torque tester to verify the torque, fix the locking screw and lock the rear cover.
3.扭矩扳手的使用方法:施加扭矩时,手握在扭矩扳手手柄的中间刻度线位置。方头与套筒、螺母/螺栓稳固连接(对开口/梅花系列扭矩扳手,应将开口/梅花头完全插入/沉入螺母中),只能在扭矩扳手标注的方向上施力,同时施力方向应在±15度内(水平方向和垂直方向)。施力时应缓慢和平稳,切忌冲击力。当听到“咔嗒”声后立即停止。
3. How to use the torque wrench: when applying torque, hold it at the middle scale of the handle of the torque wrench. The square head shall be firmly connected with the sleeve, nut / bolt (for the open / plum series torque wrench, the open / ring head shall be completely inserted / sunk into the nut), and the force can only be applied in the direction marked by the torque wrench, and the force application direction shall be within ± 15 degrees (horizontal direction and vertical direction). The force should be applied slowly and stably without impact force. Stop immediately when you hear a "click".