JPH1176851A - Wood crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To elongate replacement time interval of a crusher bit of a crushing tool provided on a crushing rotor of a wood crusher for crushing wood and the like. SOLUTION: A crusher bit 9a detachably mounted by a bit-mounting bolt 9b on a tip end of a crushing tool 9 provided on a crushing rotor for crushing wood has a square front shape, when viewed from a crushing side of the crusher bit 9a and a cutter tip 9c having edge parts formed on four sides are mounted. By such a constitution, because the tip 9c can be used by rotating by 90, replacement time interval of the crusher bit 9a of the crushing tool 9 can be elongated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a wood crushing machine for crushing wood to be crushed, for example, wood felled when constructing a residential land, branches and leaves of the wood, or waste materials generated when dismantling a house.

[0002]

2. Description of the Related Art Heretofore, most of wood, branches and leaves, waste materials and the like generated during the demolition of houses have been incinerated and discarded when building residential land. However, at present, regulations on the installation of incinerators have been tightened for each municipality, and incineration and disposal have become difficult due to the lack of final disposal sites. In addition, there is concern over the depletion of resources in Nanyang timber, which is used as a mix and papermaking raw material, and calls for protection of tropical rainforests. With the increase of environmental protection on a global scale, it is necessary to effectively use waste materials and the like again as resources and to return to nature as soil without incineration. For this reason, in recent years, wood cut down when constructing residential land, waste materials generated at the time of house demolition, and the like have been crushed. For crushing such waste materials, for example, a wood crusher is used. There are a stationary type and a mobile type, and there are various types of crushing.

[0003] An example of a mobile wood crusher according to Conventional Example 1 for crushing waste materials and the like on the spot without transporting the waste materials and the like to a predetermined place is shown in FIG. )
FIG. 5 (b), which is a perspective view of the wood inlet portion viewed from the direction of arrow C in FIG. 5 (a), and FIG. 5 (c), which is a perspective view of the cutter. The reference numeral 51 shown in
The timber crusher 51 is a movable timber crusher. The timber crusher 51 is a crawler-type movable trolley 52 that can move freely. The timber crusher 51 is mounted on the movable trolley 52 and has a timber input hopper 53 mounted thereon. A chip transport belt that is disposed between the main body 54 and the upper part of the movable trolley 52 and the lower part of the wood crusher main body 54, and carries out the wood chips discharged from the lower part of the wood crusher main body 54 to the outside of the machine. And a conveyor 60. As shown in FIG. 5 (b), a pair of crushers having a plurality of crushers, which are a plurality of crushing tools, which are of a biaxial meshing type and which will be described later, are provided at the wood inlet of the wood crusher main body 54. Rotors 55, 55 are provided.

As shown in FIG. 5C, a cutter 56 constituting each of the pair of crushing rotors 55 has a boss portion 57 having a splined fitting hole 57a fitted to a rotating shaft. A plurality of cutter tip holding portions 58 radially protruding from the outer periphery of the boss portion 57, and detachably attached to the tip of the cutter tip holding portion 58 in the rotational direction by bolts 59 a. The shape seen from the crushing side is a trapezoidal cutter tip 59, which is formed into a shape like a milling cutter. The cutter 56 of one rotating rotor 55 and the cutter 56 of the other rotating rotor 55
As is well understood from (b), the opposite cutter 5
It is configured to be located between six comrades.

Accordingly, a pair of crushing rotors 55
When synchronous rotation is performed in the direction indicated by the black arrow in FIG. 5B, that is, in the opposite direction, waste materials and the like charged into the wood input hopper 53 are caught by the crushing rotors 55 and crushed, and The wood chips that have been crushed and discharged from the lower part of the wood crusher main body 53 are conveyed by a chip conveyor belt conveyor 60 and carried out of the machine.

Although not shown, a plurality of rotating disks are supported in parallel with each other at a position deviated from the center of rotation of the plurality of rotating disks and on an arc centered on the center of rotation. A plurality of crushing tool support shafts, and a plurality of crushers capable of swinging about the crushing tool support shaft as fulcrums between a rotating disk of the plurality of crushing tool support shafts of the rotor. The tip of each of these hammers is provided with a cutter tip having the same configuration as that of the conventional example 1. Therefore, waste materials and the like are crushed by the impact of the hammer.

As is well understood from the above description, the timber crusher according to the prior art 1 or 2 is of the crawler traveling type, but the traveling cart is of a tire traveling type or a towing vehicle type. is there. The crawler traveling type as in the timber crusher according to Conventional Example 1 or 2 is considered in consideration of rough road traveling so that, for example, crushing of cut timber, foliage and the like when building residential land can be easily performed. It was done.

[0008]

SUMMARY OF THE INVENTION Conventional Example 1 or 2
According to the timber crusher according to the above, it is possible to crush the waste materials and the like on the spot without transporting the waste materials and the like to a predetermined place, and also to crush the wood, branches and leaves, etc., which are cut down when constructing the residential land. Could be useful. By the way, since the blade of the cutter tip wears due to the continuation of the crushing process and the crushing performance decreases, if the crushing performance falls below a predetermined standard, the cutter chip must be replaced, and the running cost of the wood crushing machine is reduced. There was a problem to be solved that was bulky.

Further, in the case of having a hammer,
Some cutter chips are not provided, but in the case of a wood crusher with such a configuration, if the crushing performance falls below a predetermined standard, the hard tip must be overlaid on the hammer, Like those with
There is a problem to be solved that the running cost of the wood crusher increases.

[0010] Accordingly, it is an object of the present invention to provide a wood crusher capable of reducing the frequency of replacing crush bits.

[0011]

SUMMARY OF THE INVENTION The present invention has been made based on the finding that wear of a cutter tip due to continuous crushing of wood or the like is almost at the tip only. A feature of the means employed by the wood crushing machine according to claim 1 of the present invention is that a crushing tool for crushing wood or the like, which is rotated by a driving source and has a detachable crushing bit attached to a tip thereof. In a wood crushing machine provided with a crushing rotor having a crushing bit, the front shape of the crushing bit when viewed from the crushing side of wood or the like is square, and a cutter tip is provided on each of the four sides to form a blade portion. It is in the place.

[0012] In order to solve the above-mentioned problems, the means adopted by the wood crusher according to the second aspect of the present invention is characterized in that a rotary shaft rotated by a drive source and a rotary shaft supported by the rotary shaft. A plurality of rotating discs, and a plurality of crushing tool support shafts that are at positions deviated from the center of rotation of the plurality of rotating discs, and are supported in parallel on an arc centered on the center of rotation. A plurality of crushing tools that can swing around the crushing tool support shaft are disposed between the rotating disks of the plurality of crushing tool support shafts, and a detachable crushing bit is provided at the tip of these crushing tool support shafts. In a wood crushing machine provided with a crushing rotor to be mounted, a cutter tip having a square front shape when the crushing bit is viewed from a crushing side of wood or the like and forming a blade portion on each of four sides thereof. Is set It is located in the place in which a.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a wood crusher according to an embodiment of the present invention will be described with reference to FIG. 1 showing an overall side view and FIG. , FIG. 3 in a sectional view taken along the line AA in FIG. 2, FIG. 4 (a) of a detailed view of a crushing tool of the crushing rotor (partial sectional view), and FIG. This will be described with reference to b).

Reference numeral 1 shown in FIG. 1 is a traction-type wood crusher. The wood crusher 1 is provided with a tire 2a on one side in the reciprocating direction and a bogie support having a float 2c on a lower end on the other side. Traction-type movable trolley 2 including cylinder 2b
A wood crusher body 4 mounted on the movable trolley 2 and on the side of the tire 2a for crushing wood supplied from a wood supply unit 3 provided on the side of the trolley supporting cylinder 2b; A chip conveyor belt conveyor 10 that is attached to the movable trolley 2 and carries out the wood chips discharged from the wood crusher body 4 to the outside of the machine. A crushing rotor 5 having a plurality of crushing tools 9 having a configuration to be described later is provided at a wood inlet of the wood crushing machine main body 4. The mobile trolley may be a self-propelled crawler traveling type or a self-propelled tire traveling type, and is not particularly limited to the moving type of the mobile trolley.

The crushing rotor 5 is configured as shown in FIGS. 2, 3 and 4. That is, there is provided a rotating shaft 6 which is rotated via a pulley 6 to which the rotation of an engine (not shown) is transmitted by a V-belt. A plurality of (six in this embodiment, two in pairs) pairs of rotating disks 7 are fitted on the rotating shaft 6. A plurality of (six in this embodiment) crushing tool support shafts 8 are located at positions deviated from the rotation centers of the plurality of rotating disks 7 and on an arc centered on the rotation center. A plurality of crushing tools 9 to be described later, which are supported in parallel and which can swing about the crushing tool support shaft 8 as a fulcrum, are arranged between the rotating disks 7 of the plurality of crushing tool support shafts 8. .

As shown in FIG. 2, the crushing tool 9 is composed of two crushing tools 9 which are paired by a bit connecting cylinder 9d, and have a wide space between the crushing tools 9. , Narrow type, and crusher support shaft 8
There are a case where the position is shifted in the longitudinal direction and a case where the position is not shifted, and these mounting configurations are all determined in consideration of more effectively crushing the wood.

As shown in FIGS. 4 (a) and 4 (b), a detachable crushing bit 9a is attached to the tip of the crushing tool 9 by a bit attaching bolt 9b. The crushing bit 9a has a square front shape when viewed from the crushing side of the wood, and four cutters formed in an L-shape to form a blade on each of the four sides. The chip 9c is configured to be soldered.

If the wood to be crushed is waste generated by dismantling a house, it contains various metals such as nails, bolts, hinges, and corner fittings.
As the material of the cutter tip 9c, for example, a cemented carbide or tool steel may be used. In addition, in order to remove metal products from the wood chips, it is preferable to provide a magnetic separator or the like on the carry-out side of the wood chips.

The operation of the wood crusher 1 having the above configuration will be described below. When an engine (not shown) is driven, the crushing rotor 5 is rotated. And the crushing rotor 5
When the rotation speed of the crushing tool becomes high, the crushing tool 9 rotates around the crushing tool support shaft 8 due to centrifugal force, and as shown by an imaginary line in FIG. It is outside the diameter of the plate 7. Next, when wood to be crushed is supplied from the wood supply unit, as in the past,
The supplied wood is the cutter tip 9c at the tip of the crushing tool 9.
The wood chips obtained by the crushing are blown and cut, and the crushed wood chips are carried out of the machine by a chip conveyor belt conveyor 10.

If the blade of the cutter tip 9c wears due to the continuation of such crushing of the wood and the crushing performance deteriorates, the wood crusher according to the conventional example needs to replace the cutter tip or repair the hardened overlay. was there. However, according to the wood crusher 1 according to the present embodiment, if the bit mounting bolt 9b is loosened and the crushing tip 9c is rotated by 90 °, and then the bit mounting bolt 9b is tightened again, the crushing in the conventional example becomes impossible. The same crushing performance as when the tip is replaced can be obtained.

That is, according to the wood crusher according to the present embodiment, 4
Since it is only necessary to replace the cutter tip once or replace the cutter tip only once for every four hardening overlay repairs, the running cost of the wood crusher is greater than that of the conventional wood crusher. There is an excellent economic effect that it becomes possible to reduce the cost.

In the above, an example has been described in which the movable trolley is of a traction type, and the crushing rotor 5 has a crushing tool 9 which rotates about the crushing tool support shaft 8 by centrifugal force. However, not only for the wood crusher according to Conventional Example 1 having a cutter such as a milling cutter, but also for a stationary wood crusher (a motor is often used as a drive source). Since the technical idea of the present invention can be applied to the present invention, the scope of the technical idea of the present invention is not limited by the above embodiment.

[0023]

As described above, according to the wood crusher according to the first or second aspect of the present invention, when the crushing bit of the crushing rotor is viewed from the crushing side of the material to be crushed, the front shape is a square. And a cutter tip is formed on each of the four sides to form a blade portion. If the crushed tip is re-mounted after being rotated by 90 °, the crushed tip is replaced with that in the conventional example. Equivalent crushing performance can be obtained, and it is only necessary to replace the cutter tip four times in the wood crusher according to the conventional example 1 or 2, or replace the cutter tip only once per four hardening overlay repairs. In addition, the running cost of the wood crusher can be significantly reduced as compared with the conventional example.

[Brief description of the drawings]

FIG. 1 is an overall side view of a wood crusher according to an embodiment of the present invention.

FIG. 2 is a sectional view of a crushing rotor of the wood crusher according to the embodiment of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 (a) is a detailed view (partially in cross section) of a crusher of a crusher rotor according to an embodiment of the present invention, and FIG. 4 (b).
FIG. 5 is a view as seen from the arrow B in FIG.

5 (a) is an overall side view of a wood crusher, and FIG. 5 (b) is a perspective view of a wood inlet portion viewed from the direction of arrow C in FIG. 5 (a). FIG. 5C is a perspective view of the cutter.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Wood crusher 2 ... Moving trolley, 2a ... Tire, 2b ... Cart support cylinder, 2c ... Float 3 ... Wood supply part 4 ... Wood crusher main body 5 ... Crushing rotor 6 ... Rotating shaft, 6a ... Pulley 7 ... Rotation circle Plate 8: Crushing tool support shaft 9: Crushing tool, 9a: Crushing bit, 9b: Bit mounting bolt, 9c: Cutter tip, 9d: Bit connecting cylinder 10: Tip conveyor belt conveyor

Claims (2)

[Claims] 1. A wood crushing machine provided with a crushing rotor having a crushing tool for crushing wood or the like having a detachable crushing bit attached to a tip rotated by a drive source, wherein the crushing bit is used to crush wood or the like. A wood crusher characterized by having a square front shape when viewed from the side, and a cutter chip for forming a blade portion on each of four sides thereof. 2. A rotating shaft rotated by a driving source, a plurality of rotating disks supported by the rotating shaft, and a position deviated from the center of rotation of the plurality of rotating disks, and A plurality of crushing tool support shafts supported in parallel on an arc around the center, and a plurality of crushes that can swing about the crushing tool support shaft as a fulcrum between the rotating disks of the plurality of crushing tool support shafts. In the timber crushing machine provided with a crushing rotor having a detachable crushing bit attached to the tip of the crushing tool, the front shape of the crushing bit when viewed from the crushing side of the wood or the like is provided. Is a square, and a cutter chip for forming a blade portion on each of four sides thereof is provided.