FI98348B - Wood chipping device - Google Patents

Description

, 98348

EQUIPMENT FOR LOGGING

The invention relates to a device for chipping logs, comprising a funnel for trees to be chipped, a chute or chain for chipping and a power device. The chipper is suitable for making wood chips from logs or logs

Chipping is now mostly done with tractor-powered, high-power chippers. There are two main types of chippers most commonly used: disc chippers and chippers. The operation of the disc chopper (eg FI 85 348 and FI 874 075) is based on a rotating disc to which several blades are attached and to which the wood is fed approximately radially by a separate feeder. The operation of the chipper (eg FI 812 135 and FI 705 38) is based on a conical, helical blade, in which the outer edge of the screw surface acts as a cutting part. In addition, several different types of chip chips are known, one of which is disclosed in DK 148 317, in which device the wood is processed by a gutter tooth chain.

Wood chips are used as a heat source for farms or larger heating centers.

In urban detached houses with boiler heating, the heat source is mainly oil or wood. The use of wood chips is negligible due to poor availability or cumbersome handling. However, logs or logs are well available and easier to store and handle in agglomerations than loose chips (risk of freezing and homebtuin of wet chips). However, woodchip heating has advantages over oil heating, as wood is more environmentally friendly than oil. Wood chip heating has several advantages over wood-fired heating: better combustion efficiency, less nitrogen oxide formation, no accumulator required and the combustion process can be automated.

In addition, in the future, the price of wood is likely to be even more competitive compared to the price of oil due to energy taxation, increasing supply and more efficient woodworking machines. It is also possible to burn wood chips in an oil boiler using the front housing.

By means of the device according to the invention, logs and logs can be chipped outdoors or indoors continuously in accordance with the need for reflection. The device is low-power, the woodworking blade device is cheap and its design and structure are highly developed.

In addition, blade device maintenance is widely accepted. By means of the invention, the advantage of the above-mentioned wood heating compared to oil heating can be achieved without large additional investments in existing systems. Furthermore, the invention achieves 98348. Advantages of 2 chips in incineration Stretched to the East, the ease of handling logs in storage and transport and the good availability of logs are maintained for each. To achieve these advantages, the device is characterized by what is stated in the claims.

The picture shows the device cut out from the side

Figure 2 shows the device from above in a partial section

Figure 3 shows a detail of the transmission of force to the blade device and the blade bay

The device comprises a body (1), which may be double and there may be a porous material in between to attenuate the sounds produced by the blade bay when chipping indoors. The frame can be insulated from the floor with rubber plugs (6) at the bottom (3). The chicken (4) must be opened. The chicken (4), the frame (1), the midsole (2) and the open sector (7) form a funnel (8) which acts as a wood storage. The trees (5) are placed in a loosely vertical funnel (8) on top of the intermediate base (2), whereby they flow under the influence of gravity onto the blade device and thus a separate feed device is not required. The funnel is dimensioned so that in a detached house the funnel needs to be filled once a day. The sector (7) is for damage and maintenance of the blade and in addition there is a chain oil tank (9) located in the part above the blade. The frame (1), the midsole (2), the guide damper (10) and the feed sound (11) form a space (12) which acts as an intermediate storage for the chips, if necessary. The feed screw is powered directly from the shaft (20) or via a variator (not shown).

The processing of the chips is performed by a blade bay (13) comprising a flange (14) and a cog chain (15), as in chainsaws. The blade device performs a rotary motion. The flange (14) is attached at one end to a plate (16), which in turn is attached to the medication (17) and to the switch (18) for rotating the blade bay. The force is transmitted to the chain by a traction sheave (19) which is driven by a shaft (20) coming from the power unit (23). It may have a support wheel or piece (21) to stabilize the flange. To ensure the homogeneity of the chips in a situation where there are a few centimeters of wood left, an adjustable counter (22) can be placed on the side of the flange to prevent excessive pieces from entering the intermediate storage (12), so that all the chips have to pass between the chain and the counter.

• · • ·

The chipper can be in the same state as the boiler or the feed screw passes through the wall. In the application of Figure 1, the feed screw is powered by the same power unit (23) as the chipper.

The device can also be placed far from the boiler, in which case the transfer of chips to the boiler can be tracked, for example, by a spiral conveyor. The device can also be used for single chipping with a separate feeder or with a larger intermediate storage (12) and a separate feed or connection system. If necessary, the funnel can be the height of the room and I ·, v is filled with side-opening doors.

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Claims (7)

An apparatus for continuous milling of wood or sticks comprising a frame (1), a power apparatus (23), a feeding apparatus or a funnel (9) for wood (5) to be milled, and a screening apparatus (13) which processes characterized in that the cutting device (13) comprises a sword (14) and a tooth chain (15) which rotates around the swing and that the cutting device leads at one end towards an axis (20) and makes a drill movement, while the chain (IS) simultaneously makes a machining movement against the wood (5) placed in non-staining. 2. Device according to claim 1, characterized in that the force rotating the shifter is transmitted through a clutch (18) and a disk (IQ and the force to the chain (IQ is transmitted from a pinwheel (19) arranged in the spirit of the shaft (20)). from the power device (23). 3. Device according to claims 1-2, characterized in that at the cutting device (13) there is a support roller (21) under the sword (14) and a stop bar (22) which controls the maximum size of the chip. 4. Apparatus according to claims 1-3, characterized in that the cutting means (13) are two or more in each other. Device according to claims 1-4, characterized in that the chain is a paddle chain. 6. Device according to claims 1-5, characterized in that the body ¢ 1) is formed by a ..: double cylinder whose bottom (3) is provided with rubber pins (6) and in which cylinder ..: there is a sector (7) of Inconvenient form for storing chain oil (9) and for underbill of #. the cutting device (13). «· 9 · • · ....... - Device according to claims 1-6, characterized in that the device has for conveying the freeze a conveyor (11) which requires the same power device (23) as the cutting device (13). * .... • · · ·· ........ »·· .... 9 · ..... • ·» ·· »• · ··· # · # • 9 · • 9 • · 9 9 9 9 9 9. 99 9 9