Milling wheel with cutting teeth and for double-wheel slot milling machine

Abstract

The invention discloses a milling wheel with cutting teeth and for a double-wheel slot milling machine. The milling wheel comprises a wheel hub, the cutting teeth, tooth holders and a support plate, wherein the support plate is fixed on an outer ring of the wheel hub; the tooth holders are fixed in corresponding mounting holes in the support plate; and each tooth holder is rotationally provided with one cutting tooth therein. Sharp tooth points of the cutting teeth on different circumferences but on the same axis are connected to form an envelope line of the milling wheel; the middle part of the envelope line is a straight line segment, and the two ends of the envelope line are respectively an arc segment and a parabolic segment; and the three segments are connected sequentially and tangentially. The tooth clearances and milling radii of the cutting teeth arranged on the arc segment and on the parabolic segment are not greater than the tooth clearance and milling radius of the cuttingteeth arranged on the straight line segment. According to the scheme, the cutting teeth on the straight line segment have high rate of stone block and high efficiency when used for milling rocks; thecutting teeth on the two sides have a small milling clearance, are under a small stress and are used for simultaneously completing the milling of the bottom surfaces and side walls of rocks and soil;the service lives of the cutting teeth on the two sides are increased; and the design method of the segmented envelope line of the milling wheel is helpful to realize the parametric design of the milling wheel, thereby significantly improving the design efficiency of the milling wheel.

Description

technical field [0001] The invention relates to underground continuous wall groove forming equipment, in particular to a working device of a double-wheel groove milling machine. Background technique [0002] As the most advanced construction equipment for underground diaphragm wall grooving technology, double-wheel milling machine has the advantages of large grooving depth, high verticality of grooving, good anti-seepage performance of diaphragm wall and wide adaptability to strata. It is very popular in engineering. As the core system of the double-wheel milling machine, the milling wheel is responsible for the milling and crushing of the trench, and is a key component that affects the construction efficiency of the whole machine. [0003] Limited by the structure of the double-wheel milling machine, the picks on both sides of the milling wheel are not only responsible for milling the bottom surface of the rock and soil, but also milling the side wall of the rock wall. Ther...

AI Technical Summary

Problems solved by technology

figure 2 The double-wheel milling and milling wheel described in the above is a mixed wheel, and the layered design of the picks will increase the left and right deflection angles of the picks, so that the picks cannot mill rocks at an optimal angle, increase the milling resistance of the picks, and even cause the picks to deflect. Grinding, reducing the service life of the pick

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