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图1是可调垫铁,由支承螺钉1、空心支柱2和底座3组成。件2的外圆柱上车有数个锯齿形圆环,除最下边一环外,其余各圆环都铣成30毫米宽的扁。在底座3上部开有30毫米宽的槽,在上部形成两个对称的凸台,用以支承空心支柱2。为了增加零件强度,各零件均采用45钢,淬火硬度HRC 38～42,件1与件2采用梯形螺纹。使用时,根据尺寸大小先进行粗调,然后进行微调。粗调时先使件2的扁对准件3的宽为30毫米的槽,将件2从件3中向上抽出后,再将件2转90°角,使件2的锯齿形圆环卡在件3上部的两个凸台上。再旋转件1进行微
Figure 1 is an adjustable horn, the support screw 1, the hollow pillar 2 and the base 3 components. Pieces 2 of the outer cylinder on the car has a few serrated ring, with the exception of the bottom of the ring, the remaining rings are cut into 30 mm wide flat. A 30 mm wide groove is formed in the upper part of the base 3 and two symmetrical bosses are formed in the upper part to support the hollow pillar 2. In order to increase the part strength, the parts are made of 45 steel, quenching hardness HRC 38 ~ 42, 1 and 2 with trapezoidal thread. Use, according to the size of the first rough, and then fine-tuning. When the rough adjustment, the flat alignment member 3 of the component 2 is made to have a width of 30 mm. After the component 2 is pulled upward from the component 3, the component 2 is rotated by 90 ° so that the zigzag ring card On the upper three bosses. Rotate member 1 slightly