SU1609890A1 - Side milling cutter - Google Patents

Abstract

The invention relates to earthmoving machines equipped with a disk cutter, and is intended to develop thawed and frozen soils. The goal is to increase the productivity and durability of the cutter while increasing the resistance of the blade and reducing its tendency to vibration. The disk milling cutter consists of a carrying blade (NP) 1, undercutting knives (H) 2 and cutting H 3. The shape of H 2 is made in the form of a rotating body formed by rotating a quadrangle with equal sides in pairs. The body of rotation has a sharp inner angle β along the outer perimeter and a central opening bounded by the inner perimeter. The axes for attaching H 2 to NP 1 are set with a slope in the direction of the axis of rotation of NP 1, and their angle of inclination is β / 2. The cutting parts of H 2 have bevels of faces, which are directed to NP 1 at an angle of the natural slope of the soil being destroyed. In operation, the H 2 disk milling cutter touches the trench walls and ensures the stability of the NP 1 from vibration, the sharpening of the H 2 cutting parts and their rotation with the replacement of the cutting parts working in the face. 2 Il.

Description

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in the form of a body of revolution formed by rotation of a quadrilateral with equal sides in pairs. The body of rotation has a sharp inner angle around the outer perimeter and a central opening bounded by the inner perimeter. The axes for attaching H 2 to NP 1 are set with a slope in the direction of the axis of rotation of NP 1, and their angle of inclination is equal to / 2. H 2 cutting parts

The invention relates to a mineral machine equipped with a disk cutter, and is intended to develop thawed and frozen soils.

The invention's invention is an increase in the productivity and durability of the cutter with an increase in the stability of the web and a decrease in its tendency to vibrations,

Figure 1 shows the cutter, view from above; in fig. 2 - cutting knife, side view.

 D1 {a milling cutter consists of a supporting blade 1, undercutting 2 and cutting 3 knives.

The cutting knife is made in the form of a rotational body formed by rotating a quadrilateral with equal sides in pairs. The formed body of rotation has a sharp inner angle (pb along the outer perimeter and a central hole bounded by the inner perimeter. The scoring knife is mounted on its axis on the Carrier web so that it can be rotated. Axes. - to the axis of rotation of the carrier web (0-0), wherein the angle of inclination of the axis of the cutting knife is (y) half of the acute internal angle f / 2) along the outer perimeter of the cutting knife. Prdreznye knives have cutting parts, with braids of faces, which are directed to the carrier canvas at an angle of natural repose of the soil being destroyed. When the milling cutter is operating, the knives 2 move along the contour of the trench.

have bevels of faces that are directed to NP 1 at an angle of the natural slope of the soil being destroyed. In operation, the H 2 disk milling cutter touches the trench walls and ensures the stability of the NP 1 from vibration, the sharpening of the H 2 cutting parts and their rotation with the replacement of the cutting parts working in the face. 2 is sh.

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4 and contact with Pei, providing. load bearing stability. Thanks to the contact with the walls - wounds

The undercutting knives turn on their axes, as a result of which they are minimally worn, especially when destroying peat and clay rocks, and a constant change of the cutting parts in the bottom is ensured. With abrasive wear of the side surfaces of the trimming knives, self-sharpening of the cutting parts occurs.

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Claims (1)

Invention Formula Disc cutter for destruction. soil, including a carrier web and interchangeable undercutting and cutting blades in the form of bodies of rotation, mounted on both sides of its perimeter on the axes with a rotatable ability, characterized in that, in order to increase productivity and higher vibration resistance, the body of rotation of each undercutting knife formed by rotation of a quadrangle with equal sides in pairs and has a sharp internal angle along the outer perimeter and a central opening bounded by the inner perimeter for mounting on the axis of rotation. s inclined to the axis of rotation of the carrier web, equal to half zine acute internal angle, the undercuts formed with cutting knives portions pacpolozhenny and at an angle to the plane of the carrier web, equal to the angle of repose. 0 Editor M.Kelemes Compiled by V. Britarev Tehred L.Olninyk Order 3710 Circulation 541 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Proofreader A.Osaulenko Subscription