JPS6115964Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a shredding machine in which ripper foils are attached to the outer peripheries of three rotating shafts, and large-sized scraps such as automobile bodies are crushed between the ripper foils.

Since automobile bodies are made of relatively flexible steel plates, even if they are caught between the ripper wheels of a crusher, they may not be crushed and come out of the outlet bent and large.

The purpose of this invention is to prevent the above-mentioned materials to be crushed from coming out of the discharge port without being crushed.

That is, this device has a shredded material input port near the front upper part and a shredded material discharge port located at the lower part of the crushing chamber. The center, the first shaft and the third shaft are arranged near the lower entrance and behind it, a plurality of ripper foils are fixed to each shaft, and the rotation direction of the first shaft is from the input port to the first shaft. The material to be crushed, which has been placed on the ripper foil of the second shaft, is caught from the lower front part of the ripper foil of the second shaft to the front part of the ripper foil of the third shaft, and is discharged downward, and the number of revolutions of each shaft is different. A baffle member that prevents large pieces of crushed material from falling is fixed in the middle of the discharge port of the crusher, and openings are formed on both sides of the baffle member that allow the crushed pieces to fall. An upper inclined plate that slopes upward toward the first axis side, and an upper inclined plate that slopes from the lower first axis side of the baffle member to the upper edge of the upper inclined plate of the body, and connects to the upper inclined plate at the upper edge. By providing an integrated lower inclined plate with a triangular cross section, only the discharge of crushed materials that can pass through the opening of this baffle member is allowed, and the inclined plate allows for smooth discharge. It was designed to do so.

The details of this invention will be explained below based on the attached drawings.

In the figure, 1 has an open top and a side wall 2 around it.
A chute 3 is provided at the front side of the chamber, that is, at the top of the side wall 2 on the right side in FIG. A wall 5 is provided and the space between them is used as a discharge port 6 for crushed materials.

7 is a first shaft provided near the front of the lower part of the crushing chamber 1;
1 is a second shaft located at the center of the upper part of the crushing chamber 1, and 9 is a third shaft located at the rear of the bottom of the crushing chamber 1. Both shafts have a large diameter and are hollow. Supported by

Also, one end of each shaft 7, 8, 9 protrudes through the bearing, and although not shown, each of the protruding shafts 7, 8, 9 is driven by a drive mechanism consisting of a gear interlocking mechanism and a motor. The first shaft 7 is rotated twice in one minute in the direction of the arrow in Figure 1, the second shaft 8 is rotated four times in one minute in the direction of the arrow in Figure 1, and the third shaft 9 is rotated in the direction of the arrow in Figure 2 for one minute. Rotate 10 times. However, this number of rotations is just one example. A ripper foil 10 is fixed to the outer periphery of each shaft 7, 8, 9, and a large number of teeth 11 are provided on the outer periphery of the ripper foil 10.
This tooth 11 has a knife edge 12, but the edge 12 of the tooth 11 provided on each ripper foil 10 is
It is provided above the foil 10 so as to face the input port 4 side.

In addition, each foil 10 has an outer circumference that is similar to that of the other foil 1.
In the illustrated example, three sheets are placed on the first shaft 7, two sheets are placed on the second shaft 8, and three sheets are placed on the third shaft 9.
Six foils 10 are fixed to.

Further, in the case of this invention, a baffle member 13 is fixed in the middle of the discharge port 6, and openings a and b are provided on both sides of the baffle member 13.

Further, inclined plates 14 and 15 are fixed to the upper part of the member 13 over its entire length to form a protrusion having a triangular cross section inclined forward in FIG. 1 over its entire length.

In the embodiment shown in FIG. 2, a triangular protrusion 16 is further formed at the upper end of the inclined plate 15 and brought close to the tips of the teeth 11 of the ripper foil 10.

This invention has the above-mentioned configuration, and when a large object such as an automobile body is thrown into the input port 4 from the chute 3, the ripper wheels of the first shaft 7 and the second shaft 8 rotating in the direction of the arrow in FIG. Caught between 10 and 10.

Teeth 11 of the first and second ripper foils 10
The knife edges 12 of both are facing in the same direction, but since the second shaft 8 rotates faster, the material to be crushed is pulled by the teeth of the ripper foil 10 of the second shaft 8, and the material is pulled between the first shaft 7 and the second shaft 8. It is caught between the two shafts 8, and the second shaft 8
The object to be crushed is pulled by the teeth of the first shaft 7 and is torn by the teeth 11 of the first shaft 7 having a slower circumferential speed, so that the first crushing takes place here.

In this way, the ripper foil 1 of the first shaft 7 and the second shaft 8
The material to be crushed that has passed between 0 enters between the ripper foils 10 of the third shaft 9 and the first shaft 7 and moves downward,
Since the third shaft 9 rotates faster than the second shaft 8, the material to be crushed is crushed even more finely and is discharged from the discharge port 6.

However, in some cases, the material to be crushed is Ritzpa foil 1.
Even if it is torn by the teeth 11 of 0, it may not be divided and come out still large. In such a case, the large pieces of crushed material hit the inclined plate 15 of the baffle member 13, and together with the teeth of the ripper foil 10 of the first shaft 7, which rotates in the direction of the arrow, are again lifted toward the input port 4 and thrown into the first
It is bitten again between the ripper foils 10 of the shaft 7 and the second shaft 8 and subjected to the crushing action again.

In addition, large crushed objects may be removed from the inclined plate 1 of the baffle member 13.
5 and is also hooked to the teeth 11 of the ripper foil 10 of the third shaft 9 rotating in the direction of the arrow, passing between the rear inclined wall 5 and the side wall 2, and between the ripper foil 10 of the second shaft 8 and the third shaft 9. The first shaft 7 and the third
It is bitten again between the ripper foils 10 of the shaft 9 and subjected to the crushing action again.

The shredded material, which has been re-shredded and reduced in size, is discharged from the discharge port 6 without being obstructed by the baffle member 13.

Further, when the crushed material tries to rise together with the ripper foil 10 of the first shaft 7, the crushed material may get wedged between the inclined wall 5 and the ripper foil 10, creating a large resistance, and the shafts 7, 8, and 9 may stop. In such a state, a large load is placed on the drive motors of axes 7, 8, and 9, resulting in excessive current consumption.
It has a safety device that stops the motor when it detects the current and then reverses the motor.

In such a case, the crushed material that has moved backward due to the reversal of the foil 10 is discharged from the opening b along the inclined plate 14, or at this time, in this invention, the crushed material that has moved backward is discharged from the opening b along the inclined plate 14.
4 and 15, the discharge of crushed materials becomes smooth.

Also, the teeth 11 of the ripper foil 10 on the first shaft 7
If there is a protrusion 16 as shown in FIG. 2, when the crushed material is wrapped around the teeth 11, the crushed material will come into contact with this protrusion 16 and be removed.

This invention prevents the discharge port 6 from being crushed by providing a baffle member 13 that crosses the discharge port 6 as described above, and further providing inclined plates 14 and 15 on this baffle member 13 to divide the discharge port 6 into left and right openings a and b. This prevents large objects to be crushed from being discharged as is.
In addition, there is an effect that the material to be crushed can be easily discharged even when reversing due to overload.

[Brief explanation of the drawing]

Figure 1 is a longitudinal cross-sectional side view of the crusher of this invention, Figure 2
The figure is a longitudinal sectional side view showing another example of the discharge portion same as above. 1... Crushing chamber, 4... Input port, 6... Outlet port,
7...First axis, 8...Second axis, 9...Third axis, 1
0... Ritupa foil, 11... Teeth, 13... Obstruction member, a, b... Opening.

Claims (1)

[Scope of utility model registration request] A first shaft in a crushing chamber having an input port for crushed materials near the upper front side and an outlet for crushed materials at the lower part;
The second shaft and the third shaft are arranged so that the second shaft is in the upper center, and the first and third shafts are near the lower input port and behind it, and a plurality of ripper foils are fixed to each shaft. , the direction of rotation of the first shaft is such that the material to be crushed, which is input from the input port onto the ripper foil of the first shaft, is bitten from the front lower part of the ripper foil of the second shaft into the front part of the ripper foil of the third shaft, and is rotated downward. In a crusher that has a direction of discharge to An upper inclined plate that slopes upward from the upper third axis side of the baffle member toward the first axis side, and an upper inclined plate that slopes upward from the lower first axis side of the baffle member. A crusher for automobile bodies, etc., which has a triangular cross section by providing a lower inclined plate that slopes toward the edge and is integrated with the upper inclined plate at the upper edge.