JPH027636Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a recycling crusher used for rough crushing, for example, scrapped cars or metal blocks obtained by compressing metal scrap.

(Prior Art) Traditionally, large metal scraps have been recycled by first being pretreated and cut into predetermined sizes using a shearing device, and then the cut blocks are crushed to produce high value-added metal scraps. It was considered a finished product.

(Problem to be solved by the invention) However, in the method of cutting such large metal scrap blocks by shearing,
The volume of each cut scrap block must be larger than a certain level, and as a result, the machine that ultimately crushes the cut blocks must also be large in size, and of course the manufacturing cost of the crusher is also high. The reality was that this had to be the case.

Therefore, the purpose of the present invention is to provide a crusher that can perform coarse crushing instead of the cutting process as a pretreatment as described above, and can crush scrap blocks into finer pieces than the volume of conventionally cut scrap blocks. Since the metal blocks thus crushed are further crushed, the crusher itself for turning the metal blocks into chips can be made smaller in size, which is effective in reducing costs.

The present invention is characterized by first and second crushing shafts having crushing blades on the outer periphery and rotating inwards toward the input port with a predetermined interval, and rotation of the first and second crushing shafts. A passage having a predetermined gap is formed between the driving means and a second crushing shaft, which is disposed on the opposite side of the input port with the first and second crushing shafts in between, and is located on the discharge side of the crushed pieces. a long pressing blade; an adjusting means connected to the pressing blade for making it possible to adjust a predetermined gap between the pressing blade and the second crushing shaft; and a speed change means for independently adjusting the rotation speed of the shaft, and the pressing blade has a plurality of rows of blade sections formed in the longitudinal direction on the side facing the second crushing shaft. It's there.

(Function) Therefore, the metal block is crushed by the crushing blades of the first and second crushing shafts having different rotational speeds, and the size and throughput of the crushed objects are the same as those of the second crushing shaft. The crushing can be controlled by adjusting the gap between the pressing blade and the crushing blade. The second stage is carried out separately. The pressing blade guides the crushed pieces to the discharge side.

(Example) Examples of the present invention will be described below with reference to the drawings.

In FIG. 1, first and second crushing shafts 2 and 3 are rotatably supported at a predetermined interval within a frame 1, and crushing blades 4,
5 is formed, and the rotation directions of the crushing blade 4 and the crushing blade 5 are mutually inward, that is, inward toward the input port 6. A chute 7 for supplying the material to be crushed A to the input port 6 is attached to the frame 1. Further, a pressing blade 8 is installed at a position opposite to the input port 6 with respect to the crushing shafts 2 and 3. As shown in FIG. 1, the pressing blade 8 is formed long enough to form a passage with a predetermined gap between it and the second crushing shaft 3 located on the discharge side. A plurality of blade rows are formed in the longitudinal direction on the inner surface (upper surface) of the pressing blade 8 facing the second crushing shaft 3, and the object to be crushed is crushed by cooperation between the blade and the crushing blade 3. be able to. At both ends of the back (lower surface) of the pressing blade 8, the tips of the rams of hydraulic cylinders 9 and 10 as gap adjustment means are connected to the shaft 1.
It is rotatably connected to 1 and 12. Therefore, the gap between the pressing blade 8 and the crushing blades 4 and 5 can be adjusted. In addition, in this case, hydraulic cylinder 1
0 is not necessarily required, and may be omitted and the pressing blade 8 may be provided to be swingable about the shaft 12.

Furthermore, two torque motors 13 and 14 are installed on the upper surface of the base 1A of the frame 1, and as will be described later, the electric motor is used as the power source and a hydraulic pump is used to drive the motor through the torque motor. crushing shaft 2,
3 to rotate each of them.

As shown in the second diagram, the hydraulic circuit for adjusting the rotation speed of the torque motors 13 and 14 includes a hydraulic pump 16 for rotating the crushing shaft 2 and a hydraulic pump 17 for rotating the crushing shaft 3 in parallel in the oil tank 15. Each hydraulic pump is connected to the torque motor 1 via solenoid valves 18 and 19 for switching the torque motor reversible rotation.
3 and 14 are provided. An electric motor 20 is interposed between the hydraulic pumps, and a flow rate regulating valve 21 is provided in the oil tank. Therefore, the speed of the rotational speed of the torque motors 13 and 14 is adjusted by the flow rate regulating valve 21.

Therefore, to explain the operation of the present invention, the first
The rotation speed of the crushing shaft 2 is set at approximately 2 times/minute, and the rotation speed of the second crushing shaft 3 is set at approximately 7 times/minute, and when the material to be crushed A is introduced from the chute 7, a The object is bitten and transferred to the pressing blade 8 while being crushed, but after this first stage of crushing, the object to be crushed is pressed by the pressing force of the hydraulic cylinders 9 and 10 on the back of the pressing blade 8, and further Crushing is performed between the pressing blade and the crushing blade 5. During this second stage of crushing, the pressure blade 8 and the crushing blade 4 are moved by the hydraulic cylinders 9 and 10.
5, the crushing size and crushing amount of the object A to be crushed will change. The crushed pieces are guided to the discharge side by the pressing blade 8.

(Effect of the invention) Since the present invention has the above configuration, the object to be crushed is crushed by passing between the first crushing shaft and the crushing shaft, but the rotation of each crushing shaft is By setting a difference in the number and adjusting the rotation speed, it is possible to correspond to the shape of the object to be crushed, increasing processing efficiency, and by adjusting the pressing force, it is possible to adjust the size and size of the object to be crushed. It is possible to adjust the throughput and is particularly effective as a means for coarsely crushing metal blocks. Furthermore, the object to be crushed is subjected to a first stage of crushing between the crushing blades of the first and second crushing shafts, and a second stage of crushing is performed between the crushing blades of the pressing blade and the crushing blade of the second crushing shaft, so that crushing is ensured. The crushing operation can be improved, and the crushed pieces are smoothly guided to the discharge side by the pressing blade.

[Brief explanation of the drawing]

FIG. 1 is a sectional view, and FIG. 2 is a hydraulic circuit diagram. 2...First crushing shaft, 3...Second crushing shaft, 4,5
...Crushing blade, 8...Press blade, 9, 10...Hydraulic cylinder, A...Object to be crushed.

Claims (1)

[Scope of Claim for Utility Model Registration] First and second crushing shafts having crushing blades on the outer periphery and rotating inward toward each other toward the input port with a predetermined interval; and rotation of the two crushing shafts. a second drive means, which is disposed on the opposite side of the input port with the two crushing shafts interposed therebetween, and is located on the discharge side of the crushed pieces;
a pressing blade formed long enough to form a path with a predetermined gap between it and the crushing shaft, and having a plurality of rows of blades formed in the longitudinal direction on the side facing the second crushing shaft; , an adjusting means for making it possible to adjust a predetermined gap between the pressing blade and the second crushing shaft; and a speed change means provided in the rotary drive means for independently adjusting the rotational speed of the two crushing shafts. A crusher equipped with