CZ2184U1 - Chipper - Google Patents

Description

(54) Chipper

CZ 2184 U

Chipper ý. J

Technical Field - _L; {J & ofene pair cdo & ufch wdctfJ

The present invention relates to a chipper suitable especially for the treatment of various wood waste such as tree branches, and the resulting chips are a suitable material for incineration or composting.

BACKGROUND OF THE INVENTION

For the treatment of wood waste in the form of branches, various facilities operating on different principles are used.

One device is a chipper, which is equipped with knife rollers, where the wood mass is processed into coarse shavings by high speed. Other known wood chippers are merely an application of the above-described system, with the rotating part of the wood chippers being equipped with various elements for splitting such as sharp-edge hammers, various protrusions etc. The disadvantage of these devices is the high energy consumption resulting from high power input of the drive motor , excessive noise and lower operator safety.

Other known devices used for wood waste treatment operate on the principle that wood waste is crushed between a pair of rollers, which are usually provided with a screw-like groove. These devices also show high energy demands and lower work safety.

Also known is a wood waste chipper comprising a pair of rotating rollers, wherein the circumference of the rollers is provided with an equal number of symmetrically distributed splitting blades operating at synchronized rotational speed. The same number of roll speeds and the symmetrical positioning of the same number of cutting edges ensure that the cutting edges are always engaged against each other. The disadvantage of these wood chippers is seen in the fixed placement of the splitting blades and thus avoiding their adjustment, which deteriorates the quality of the machine's work. For good chip separation, minimal clearance between the splitting blades is required, which in the case of the present solution means changing the blades. This implies that the existing solution increases the cost of actual operation.

The essence of the technical solution

Said _t drawbacks are substantially removed by Lawn <- £ ^ 0d / gfYg OT-.alpha. WYC ^ i Ha / EW j woodchips ^ PODR of techn i OF AN solution whose principle consists in that the roll circumference are provided with an uneven number of symmetrically The ratio of the number of revolutions of the cylinder with the smaller number of splitting blades to the cylinder with the larger number of splitting blades is from 1: 1.05 to 1-2 depending on the difference in the number of splitting blades.

For proper operation, it is advantageous that the splitting blade is fixedly attached to the holder.

The material to be processed is drawn by the cutting edges between the two cutting rollers. The blades gradually penetrate into the wood mass, first splitting the material to be processed and then the chips are separated due to the different peripheral speeds of the rollers.

An essential advantage of this solution is that the chopping rollers also serve as a feeding device. Further advantages of this solution can be seen in the lower energy consumption resulting from a suitable separation of the material to be processed due to a more favorable distribution of the force necessary for splitting, a lower noise level and, with a view to minimizing vibrations, also a higher occupational safety.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be explained in greater detail using the drawing, and (g · oQWtf incision. A place, cleavage and 4 "in which (s> portray the / fig. ^ OIS schematic principle _(activity (g · oQWtf rust. Rmsíeny And course cleavage A Fig. 4Aval with phased cutting edges.

the way of appreciation

For example, the technical fesg

In the chipper according to FIGS. 1 to 5 * / SOM, the main functional element of the disassembled blades, and the rollers 1 and splitting splitters

2 ^ Provide unequal cutting edges 3.

At the same time the number of symmetrically 2 are weldments

Rollers 1 and 6 are guided by the blades A of the holder 4 for the feed to be processed

material. The embodiment shown in FIG.

[^ provided with six cutting edges splitting cylinder 3 _{ai ^ 2 with the cutting blades provided with five third Pohorfjfvai CE 2 is a supporting shaft

TORQUE 2 to the nosng shaft 6 of the roller 2 by means of gears 7 and S.

By means of a ratio of 1 = 1.2, a speed difference is achieved and, at a ratio of splitting blades 5 = 6, the splitting blades 3 are simultaneously met at the desired point 4 lying on the connecting line of the axes of cylinders 1 and 2. the oval grooves and set screws 9 to the holder 4 and guarantee the adjustability of the individual splitting blades 3 under wear and tread.

Industry_ utilization

The chipper can be used in the processing of wood waste, especially in forestry or orchard.

Claims (3)

Claims PROTECTION ruy A chipper, characterized by a pair of rotating rollers, wherein the roller circumferences (1, 2) are provided with an uneven number of symmetrically distributed splitting blades (3), wherein the number of rotations (rollers (2) versus ¹ »rolls (1) is in a ratio of 1: 1.05 to 1 = 2. 2.The mower has a holder (4). chips according to the following year the splitting blade (3) is 1, which is movably fastened to 3. Chipper according to claim 1, characterized in that the heater (2) is provided by a transmission from the drive of the first rollers (1).