SU1223859A1 - Working member for simulatneous grinding of stones and wood - Google Patents

Abstract

The working body for simultaneously grinding stones and wood, containing a drum with grooves, knives mounted on rods, having the possibility of radial movement in the grooves, and a device located inside the drum, for fastening and radial movement of rods, characterized in that . The knife service, the device for fastening and the radial movement of the rods is made in the form of a cylinder, whose axis is displaced downwards relative to the axis of the drum, the rods being fixed to the cylinder by means of The hinges are connected to the drum by a screw pair, with the knives having a cutting edge on one side and a striker on the other. SL C 00 SP

Description

1223859

relates to forestry oration and may be machines for cleaning the layer of soil from debris.

kro 4 n

time

lI dr Ba vr 12 hv Od per ca

The purpose of the invention is to increase the service life of knives.

Fig. 1 shows a schematically a milling cutter for simultaneous grinding of stones and wood, a general view) in Fig. 2 — node I in Fig. 1 (a knife with a rod and a screw edge); on fig.Z - section aa in figure 1.

The milling cutter for simultaneous grinding of stones and wood contains a frame 1, to which a baffle plate 2, having a counter knife 3, is attached. On the frame 1 there is a driving rotary drum 4, inside of which there is a cylinder 5. The rods 7 with helical ribs 8 are attached to the latter by means of hinges 6 into grooves 9, at the ends of which are knives 10 having cutting

five

0

five

edge 11 and striker 12. A rake 13 is mounted on frame 1 behind drum 4.

The device works as follows.

In the forward movement, the rake 13 combes out stones and wood from the ground, which form a swath. The drum 4 and the cylinder 5, synchronously rotated, crush the stones by striking the blades 12 of the knives 10, and the wood is captured by the knives 10 and lifted. At the same time, by increasing the distance between the surfaces of the drum 4 and the cylinder 5, the length of the protruding part of the rod 7 is reduced, and the knife

10 turns. In the upper position, the knife 10 is rotated cutting edge

11k the counter-knife 3 of the baffle plate 2. The raised wood is crushed by the knife 10. Rotating the rods 7 prevents the cutting part of the knives 10 from blunting.

The use of the invention allows one working body to process. soil containing wood inclusions and clogged with stones.

Fm.g

Editor S. Lisin

I eSKbWj

Compiled by 10. Rybinsky

Tehred V. Kadar Proofreader E. Sirohman

Order 1851/1 Circulation 679 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

Claims (1)

The working body for simultaneous grinding of stones and wood, containing a drum with grooves, knives mounted on rods that can radially move in grooves, and a device located inside the drum for fastening and radial movement of the rods, characterized in that, in order to increase the service life knives, a device for fastening and radial movement of the rods is made in the form of a cylinder, the axis of which is shifted downward relative to the axis of the drum, the rods being fixed to the cylinder by means of ball joints and a drum associated with a screw pair, wherein the blades are on the one hand a cutting edge, and the other - the striker.