JPH0425290Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in an agricultural chipper that crushes branches, etc., generated during the shaping and pruning of trees such as fruit trees into fine pieces.

As shown in FIG. 1, the above-mentioned agricultural chipper A usually has a crushing chamber 2 in a machine frame 1, with a supply port 20 opening on the rear side (right side in the figure) and a discharge port 21 opening on the front side. is installed in the crushing chamber 2,
A rotating shaft 30 that is horizontally supported so as to pass through the center of the rotary shaft from left to right, and a flywheel 31 that is mounted parallel to the rotating shaft 30 at appropriate intervals in the axial direction.
... (Fig. 2), a support shaft 32 ... mounted across the periphery of the flywheel 31 ..., and a cutting blade body supported in a free hammer shape parallel to the support shafts 32 ... in the axial direction. A crushing mechanism 3 consisting of .
A supply table 4 formed to be a fixed blade facing the ... is installed, and a supply gutter 5 is connected to the outer end of the supply table 4, and a supply gutter 5 is connected to the outlet 21 side of the crushing chamber 2. A crushing net 6 provided with a large number of sieves 60 for discharging crushed pieces of the crushed material is installed so as to block the discharge port 21, and a discharge gutter is installed outside of the crushing net 6. 22, and a raking wheel 23 is provided above the above-mentioned supply table 4 on the supply port 20 side.
The scraping wheel 23 and the rotating shaft 30 of the above-mentioned crushing mechanism 3 are connected to the output shaft of an engine E mounted on the machine frame 1 or a separately provided supporting machine frame. The material M to be crushed is scraped by the scraping wheel 23 supplied from the supply gutter 22.
The cutting blade 33 of the crushing mechanism 3, which is being received by the supply table 4, rotates clockwise as shown by the arrow A in FIG.
is cut and crushed into small pieces in collaboration with the supply table 4, and further finely crushed by the cutting blade body 33 rotating in the crushing chamber 2 and the crushing net 6, and the crushed pieces are is discharged from the crushing chamber 2 through the sieve meshes 60 of the crushing net 6.

By the way, as mentioned above, the agricultural chipper A configured in this way is not only used to crush long objects such as branches taken down from trees such as fruit trees, but also to crush grass etc. into chunks of about 3 cm square. Gutter 5 supplies compacted pellets called hecube.
It can also be used to finely grind it by adding it from scratch. But like this,
When using the object to crush a small object with a short length such as a hexagonal tube, the pulling action of the material to be crushed by the rotating cutting blade 33 of the crushing mechanism 3 is effective, as in the case of a long object. This causes a problem in that the material to be crushed, which is fed into the supply gutter 5, is not fed properly to the crushing chamber 2.

The present invention was made to solve this problem, and the crushing of long objects such as branches taken down from trees and the crushing of short objects such as hexagons are carried out in the crushing chamber 2. It is an object of the present invention to provide a new means for switching the feeding to an appropriate state.

In the present invention, as a means to achieve this objective, a supply stand that forms the floor surface of the entrance of the supply port is provided on the supply port side of the crushing chamber in which the crushing mechanism is stored. It is supported on the machine frame so that it can be tilted and rotated freely using a left-right support shaft installed in the middle of the front and back of the table, and is fixed at the desired rotational position with a set bolt, and a supply gutter is connected to the outer end of the supply table. This paper proposes an agricultural chipper that is connected to each other.

Next, embodiments will be described in detail with reference to the drawings. Note that the same reference numerals in the drawings as in the previous means are used for components having the same effect.

Fig. 3 is a partially cutaway overall side view of an agricultural chipper A capable of carrying out the present invention, in which 1 is a machine frame, 2 is a crushing chamber, 3 is a crushing mechanism, 4 is a supply stand, and 5
6 indicates a supply gutter, and 6 indicates a crushing net.

The machine frame 1 is a square frame, and a machine wall is stretched over the outer peripheral surface to form a square box shape.

The crushing chamber 2 is formed into a drum shape with the axial direction being the left and right direction, and is installed on the upper half side of the machine frame 1, and has a supply port 20 on the rear side (right side in Fig. 3). It is open, and a discharge port 21 is open on the front side.

The crushing mechanism 3 includes a rotating shaft 3 arranged to pass through the axial center of the crushing chamber 2 from side to side and mounted on the machine frame 1.
0, there is a flywheel 3 that also serves as a mounting bracket for multiple blades.
1... are fixedly supported in parallel in the axial direction, and support shafts 32 parallel to the rotating shaft 30 are mounted on the peripheral edge portions of the flywheels 31, and each of the support shafts 32... A large number of cutting blade bodies 33
This is a conventionally known structure in which the shafts are arranged in parallel in the axial direction and supported in a free hammer shape.

The supply stand 4 connects the main body 40 to the supply port 2 of the crushing chamber 2.
The main body part 40 in the shape of a base plate has a bent part 41 bent downward so as to form an angle shape when viewed from the side. is formed, and the edge 41a of the bent portion 41 is arranged to face the cutting blade 33, which is a rotating blade of the crushing mechanism 3 installed in the crushing chamber 2, and assembled in the machine frame 1. By attaching the bent portion 41, the bent portion 41 also serves as a fixed blade facing the cutting blade bodies 33.

The supply table 4 includes a main body portion 4 having a plate-like shape.
A bracket 42 is provided on the lower surface side of the intermediate portion in the longitudinal direction of the machine frame 1, and the bracket 42 is attached to the machine frame 1.
By rotatably supporting the support shaft 43 horizontally on the support shaft 43, the bent portion 41 which also serves as the fixed blade is attached to the support shaft 43.
It moves up and down so as to rotate around the center, and the angle of inclination of the upper surface of the base-shaped main body part 40 can be freely changed by this rotation. Further, a locking plate 44 is integrally provided at the inner end of the lower surface side of the supply table 4, and a set bolt 45 is screwed into this. By exposing the hole 46 to the outside through a long hole 46 provided in the machine wall 1a, which serves as the outer panel of the machine, and fastening it to the outer surface of the machine wall 1a, the rotation about the support shaft 43 can be adjusted to a desired rotation position. It is fixed in place.

The supply gutter 5 is formed into a channel shape by a floor plate 50 and left and right side walls 51 (one side wall 51 is not clearly shown in the drawing), and its base end 5a is connected to the outer end of the supply table 4. The parts are welded together and fixedly connected. And the left and right side walls 51, 51 of it
An arc-shaped elongated hole 46 is provided at each base end side of the base end along an imaginary arc centered on the support shaft 44 that pivotally supports the above-mentioned supply table 4.
are formed respectively, and the heads of set bolts 45 are installed at the rear portions of the left and right machine walls 1a, 1a of the machine frame 1, forming the inlet portions of the aforementioned supply ports 20. It is slidably inserted and a tightening nut 47 is screwed onto the set bolt 45 and tightened, thereby assisting in locking the rotation of the supply table 4 about the support shaft 43.

The crushing net 6 is a normal one formed by punching through holes to serve as sieve meshes 60 in a steel plate, and is attached to the discharge port 21 along the rotation locus of the cutting blade body 33, which is the rotating blade of the crushing mechanism 3.
It is assembled to the machine frame 1 so as to close it in an arc shape.

Reference numeral 23 denotes a scraping ring disposed above the upper surface of the supply table 4, which is attached to the distal ends of a pair of left and right arms 24, 24 whose proximal ends are loosely supported on the rotating shaft 30 of the crushing mechanism 3. The supply table 4 is rotatably supported by a spring 25 stretched between the arm 24 and the machine frame 1.
It is urged to approach the upper surface of the object. and,
The scraping wheel 23 is connected to the rotating shaft 30 of the above-mentioned crushing mechanism 3.
At the same time, the power is transmitted via a transmission mechanism to the output shaft of a prime mover (engine) supported on the machine frame 1 or a separately installed machine frame, and the drive is driven by the prime mover to drive and rotate in the directions of the arrows in Fig. 3. .

In the illustrated embodiment, 48 is a stopper formed at the lower end of the bent portion 41 provided on the supply table 4, and when the supply table 4 is rotated clockwise in FIG. Then, it abuts against the lower surface of the lower edge 20a of the supply port 20 of the crushing chamber 2, and acts to stop the rotation of the supply table 4.

The embodiment device constructed in this manner operates as follows.

When crushing long objects such as branches taken down from trees, loosen the tightening of the set bolts 45 and 53, and move the supply table 4 and the supply gutter 5 integrally connected to it into the third position around the support shaft 43. Rotate clockwise in the figure, and tighten the aforementioned set bolts 45, 53 at the position where the stopper 48 abuts against each other. As a result, the supply stand 4 and the supply gutter 5
As shown by the solid line in FIG. 3, the structure is inclined downwardly toward the interior of the crushing chamber 2 at a gentle inclination angle, and the downwardly bent portion 41 installed at the inner end of the supply table 4 is bent downward. , the long objects to be crushed are raised from the floor of the crushing chamber 2 and are fed from the supply gutter 5, and are sequentially fed into the crushing chamber 2 while the scraping wheel 23 presses them against the upper surface of the supply table 4. It is crushed by the cutting blades 33 of the crushing mechanism 3 and the upper edge 41a of the bent part 41 installed at the inner end of the supply table 4, and the resulting crushed pieces are placed in the crushing chamber 2. The cutting blades 33 . . . pulverize the pulverized material, and the pulverized material leaks through the sieves 60 of the crushing net 6 and is discharged to the outside.

Next, when crushing small items such as cubes, loosen the tightening of the set bolts 45 and 53 again, rotate the supply table 4 and the supply gutter 5 counterclockwise in FIG. 3 about the support shaft 43, The set bolts 45 and 53 reach the ends of the arc-shaped elongated holes 46 provided in the machine wall 1a of the machine frame 1 and the arc-shaped elongated holes 52 provided in the side wall 51 of the supply gutter 5, and the supply platform 4 and the supply gutter 5 are connected to each other. Once the rotation has stopped, if the set bolts 45 and 53 are tightened again, the supply table 4 and the supply gutter 5 will descend into the crushing chamber 2 at a steep angle of inclination, as shown in FIG. , the bent portion 41 at the inner end of the supply table 4 is recessed below the floor plate of the crushing chamber 2, and the inner end of the supply table 4 is aligned at approximately the same height as the floor plate of the crushing chamber 2. Become. As a result, when a small object to be crushed, such as a hexagonal cube, is supplied from the supply gutter 5, the object to be crushed flows directly into the crushing chamber 2, and the crushing mechanism 3 rotating inside the crushing chamber 2 is cut. It begins to be crushed by the blade body 33.

Then, the tilting rotation of the supply table 4 is caused by the approximately raking wheel 23
Since the rotation is centered on the support shaft 43, which is positioned below the raking wheel 23, even if the inclination angle of the supply table 4 is changed as shown in FIGS. The position is maintained substantially constant, so that the operation of the scraping wheel 23 is not hindered.

As explained above, the agricultural chipper according to the present invention has a supply stand 4 that forms the floor surface of the entrance of the supply port 20 on the supply port 20 side of the crushing chamber 2 in which the crushing mechanism 3 is housed. It is supported on the machine frame 1 so as to be tiltable and rotatable by a support shaft 43 in the left and right direction provided at the middle part of the front and back of the table 4, and is fixed at a desired rotational position with set bolts 45, 53, and the supply table 4 is Since the feed gutter 5 is connected and connected to the end side, by changing the inclination angle of the feed table 4, the feed state suitable for crushing long objects such as branches taken down from trees, and the hekyu tube can be changed. The feeding state can be changed to suit the crushing of small items such as
The crushing work of long and small items is carried out in the crushing room 2.
It becomes possible to perform feeding in an appropriate state.

[Brief explanation of drawings]

Fig. 1 is a vertical side view of a conventional agricultural chipper, Fig. 2 is a plan view of the same crushing mechanism, Fig. 3 is a longitudinal side view of an agricultural chipper that can implement the present invention, and Fig. 4 is an explanation of the operation of the above. It is a diagram. Explanation of drawing symbols, A... Agricultural chipper, E...
Engine, M... Material to be crushed, 1... Machine frame, 1a
... Machine wall, 2 ... Crushing chamber, 20 ... Supply port, 20
a...lower edge, 21...discharge port, 22...supply gutter, 23...raking wheel, 24...arm, 25...
Spring, 3... Crushing mechanism, 30... Rotating shaft, 31...
... flywheel, 32 ... spindle, 33 ... cutting blade body, 4 ... supply stand, 40 ... main body part, 41 ... bending part, 41a ... edge, 42 ... bracket,
43... Support shaft, 44... Locking plate, 45... Set bolt, 46... Oblong hole, 47... Tightening nut, 4
8... Stopper, 5... Supply gutter, 5a... Base end, 50... Floor plate, 51... Side wall, 52... Long hole, 53... Set bolt, 6... Crushing net, 60
...phloem.

Claims (1)

[Scope of utility model registration request] Supply port 2 of the crushing chamber 2 that houses the crushing mechanism 3
On the 0 side, a supply table 4 that forms the floor surface of the entrance of the supply port 20 is attached to the machine frame 1 so as to be tiltable and rotatable by means of a left-right support shaft 43 provided at an intermediate portion between the front and rear of the supply table 4. This agricultural chipper is constructed by supporting and fixing at a desired rotational position with set bolts 45, 53, and connecting and connecting a supply gutter 5 to the outer end side of the supply stand 4.