When the new equipment is replaced with the old equipment or the replacement model of the equipment, the problem that the basic bolts are not matched is often encountered. In order to avoid the investment and the long time of re-laying the foundation bolts, I designed a expansion bolt device (Fig. 1), which has been tested very well. The expansion bolt device is composed of a nut 1, a slant pad 3, a sweller 4 and a conical bolt 5, etc. The sweller 4 (Fig. 2) consists of a section of cold-rolled thin-walled (δ=0.5~3 mm) seamless steel pipe and a piece. The steel plate is welded, and the lower part of the steel pipe is symmetrically opened with four vertical joints. The head bolt 5 has a tapered head with a large end diameter equal to the outer diameter of the steel tube of the expander 4. When screwed
Steel Cross,Stainless Steel Cross,Corbon Steel Cross,Pipe Fitting Cross
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