Adjustable supporting frame for boiler foundation bolts and mounting method

Abstract

The invention relates to an adjustable supporting frame for boiler foundation bolts and a mounting method. The adjustable supporting frame is used for positioning the foundation bolts, the supporting frame comprises an outer frame and an inner frame, the outer frame comprises stand columns and upper supporting cross beams and lower supporting cross beams between the stand columns, the inner frame comprises upper positioning pieces and lower positioning pieces; positioning round holes are formed in the corresponding positions of the upper positioning pieces and the lower positioning pieces, the diameter of the positioning round holes is larger than that of the foundation bolts, the lower ends of the foundation bolts sequentially penetrate through the positioning round holes in the upper positioning pieces and the lower positioning pieces from top to bottom, the foundation bolts are sleeved with first nuts, second nuts and anchor plates, the second nuts, the upper positioning pieces and the upper supporting cross beams are sequentially welded from top to bottom, and the lower supporting cross beams, the lower positioning pieces, the anchor plates and the first nuts are sequentially welded from top to bottom. Compared with the prior art, the adjustable supporting frame has the advantages of low adjustment difficulty, time and labor saving, high working efficiency, high precision and the like.

Description

technical field [0001] The invention relates to a steel frame boiler technology, in particular to a boiler anchor bolt adjustable support frame and an installation method. Background technique [0002] Domestic thermal power plant boiler equipment generally adopts steel structure as a fixed frame, such as Figure 9 , the steel column 16 of the fixing frame is arranged on the column bottom plate 1, and the column bottom plate 1 is fixed by using anchor bolts 2 conventionally. The size of the column bottom plate 1 matches the size of the steel column, and generally 4, 6 or 8 anchor bolts 2 are used. The relative position requirements of the anchor bolts 2 are relatively strict, and they are the main control nodes of the civil engineering installation. The meter is 1mm, but the maximum shall not exceed ±5mm. In order to control the relative position between the anchor bolts 2, such as figure 1 , figure 2 , image 3 with Figure 5 Generally, the anchor bolts 2 are fixed ...

AI Technical Summary

Problems solved by technology

[0004] To adjust the position, it is first necessary to adjust the spacing within the group of the anchor bolts 2 to be qualified. Once the positioning block 3 is spot-welded, it is very inconvenient to adjust its position by knocking off the solder joints;

[0005] After the positioning block 3 is welded, the lower end of the anchor bolt 2 is positioned by tightening the first nut 7, and the adjustment is more convenient. After the first nut 7 is tightened, the first nut 7 and the anchor plate 12 and the anchor plate 12 and the second The upper positioning beams 9 are respectively fixed by spot welding, but because the anchor bolts 2 are not allowed to be welded, there is no spot welding between the anchor bolts 2 and the first nut 7, the anchor bolts 2 can actually spin, and the anchor bolts The elevation of the upper end of 2 may change, affecting the installation accuracy;

[0006] After the adjustment of the spacing within the group of anchor bolts 2 is completed, the axis of the support frame needs to be adjusted, and the support frame needs to be moved as a whole. However, due to the heavy support frame, the adjustment is difficult and the accuracy is not high;

[0007] After the axis positioning of the support frame is completed, if deviation is found, the overall adjustment is difficult and mutual interference is achieved. After one first nut 7 is positioned and adjusted, other first nuts 7 in the same group may shift again, affecting the final accuracy

Images