Guide ring overwelding seam large-cylinder bottom double-telescopic upright column
A guide ring, double telescopic technology, used in pillars/supports, mining equipment, earthwork drilling, etc., can solve the problems of insufficient expansion ratio affecting support efficiency, small expansion ratio difficult, etc., to improve reliability, optimize stress, Reduce the effect of fixed segments
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[0016] see figure 1 , figure 2 and image 3 Shown: a double telescopic column at the bottom of a large cylinder with a guide ring passing through the weld seam, which is composed of the outer cylinder 1, the middle cylinder 2 and the live column 3 as the main force-bearing rods. The guide ring 4 is installed on the middle cylinder and the live column is equipped with Guide ring 5. The inside of the outer cylinder bottom is made hollow, and the middle cylinder bottom is placed in its cavity to the maximum extent; at the same time, the live column bottom is placed in the middle cylinder bottom to the maximum extent, so that the three have a greater degree of overlap. On the side of the outer cylinder (see figure 2 ) The bypass safety valve is set within the range of 40 degrees to 45 degrees (see image 3 ) port K to install a safety valve.
[0017] Figure 4 Shown is figure 1 The structure of the guide ring of the middle and outer cylinder passing through the cylinder b...
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