Abstract:

In order to provide theoretical support and process methods to the longitudinal cutting head design and manufacture, combination the defined of pick’s working angles, the concept of dynamic, static cutting angle and dynamic, static tilt angle were put forward, and their formulas were derived. The formula of spatial coordinates of pick’s root was derived, they are theoretical basis for the three-dimensional design of cutting head. One kind of pick positioning tooling was designed, picks can be positioned accurately by the pick positioning tooling according to the design data. These studies have important theoretical and practical significance for design and manufacture of cutting head.

Key words: longitudinal cutting head, working angle, pick positioning tooling