The characteristic of the anchor screw is that an adjustment sleeve is provided between the part higher than the foundation of the anchor screw and the bottom hole of the equipment, and the upper end of the anchor screw is equipped with an adjustment cap. The part of the anchor screw buried in the foundation is covered with an anchor sleeve. It is composed of upper and lower supporting blocks, casing, ribs and so on. The lower end of the adjusting sleeve and the root of the foot screw are respectively connected with the upper and lower supporting blocks. The utility model omits the inclined iron when adjusting the equipment level, adjusts quickly and conveniently, improves the stress state of the anchor screws, and is convenient to replace the anchor screws, and is especially suitable for the installation and use of large-scale equipment.
The inner diameter of the hole on the grooved steel plate is only 1mm larger than the outer diameter of the designed anchor screw, and its center is consistent with the design. When the anchor screw is set in it, the maximum displacement deviation that each bolt can produce is 0.5mm, any two The maximum displacement deviation that the bolt can produce is 1mm, so that it can ensure that the center displacement between any bolts in the same bolt group reaches the construction pre-control target ≤ 1mm. Because the precision control of the special fixture itself is better, so long as the special fixture is accurately used with the independent bracket through the total station, it can ensure that the accuracy of the anchor screw set in the fixture is controlled within the design range.
Anchor screws are widely used in large construction industry, and then they are introduced and manufactured in my country. If the bolt diameter is large (such as 45mm) and the depth is too deep, the square plate can be welded to the end of the bolt, that is, a large head is enough (but there are certain requirements). The buried depth and the hook are to ensure the friction between the bolt and the foundation, so that the bolt will not be pulled out and damaged.
