JPH0312343Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention consists of a shell liner that fixes materials to be crushed, such as various kinds of waste, that are introduced through the upper opening of a cylindrical shell inside the shell, and a shell liner that is fixed on the outside of the rotating shaft. The present invention relates to a crusher that crushes the crushed material using a breaker hammer and a grinder, and particularly to a device for adjusting the particle size of the crushed material.

[Conventional technology]

A conventional particle size adjusting device in this type of crusher is shown in FIGS. 3 and 4.

In Figures 3 and 4, 11 is a cylindrical discharge ring, 12 is a shell fixed to the upper part of the discharge ring, and this shell 12 has a shallow tapered shape with a wider upper part and an opening at the upper end as an input port. . Further, a large number of shell liners 13 and 14 are fixed inside the shell 12, and these shell liners 13 and 14 are arranged in an appropriate order to create unevenness. be.

15 is a vertical rotation shaft provided in the center, and rotors 17 and 18 are fixed to the upper part of the shaft.
A plurality of sets of breaker hammers 19 are rotatably attached between 7 and 18 by breaker pins 20, and a pair of upper and lower disc-shaped rotors 23 and 24 are fixed to the upper and lower parts of the rotating shaft 15, respectively. Rotor 2
A plurality of grinders 25 are rotatably mounted between 3 and 24 using grinder pins 26.

Flange 2 at the upper end of the discharge ring 11
8 and the flange 29 at the lower end of the shell 12, as shown in FIG.

A plurality of elongated holes 32 and 33 are provided in the jaw rings 30 and 31, respectively, and the flanges 28 and
Multiple insertion holes provided in 29 and Chiyo ring 3
Bolt 3 inserted into long holes 32 and 33 of 0 and 31
4,35 and nuts make chiyo ring 30,3
Fix 1.

[Problem that the invention attempts to solve]

In the conventional adjusting device as described above, when adjusting the particle size, the bolts 34 and 35 are loosened and the respective chiyo rings 30 and 31 are moved forward and backward, and the distance between the outer periphery of the rotor 24 and the inner edge of each chiyo ring 30 and 31 is adjusted. It is necessary to adjust the circular gap that occurs. For this reason,
Adjustment is time consuming and cannot be done while driving.

Between the rotor 24 and the chiyo rings 30 and 31
Since the gap is circular, plate-shaped or rod-shaped particles can easily pass through even if they are large, so the particle size will not be uniform.
If the gap between the rotor 24 and the jaw rings 30, 31 is made smaller in order to reduce the grain size, problems arise such as the gap between the teeth rings 30, 31 becomes larger, making it easier for large objects to pass through there. Ta.

[Means for solving problems]

In order to solve the above problems, this invention provides a fixed jaw ring at the bottom of the shell that has a plurality of holes through which crushed materials can pass, and a rotatable movable jaw ring in the fixed jaw ring. The movable jaw ring is also provided with a plurality of holes that correspond to the holes of the fixed jaw ring, and the movable jaw ring is rotated from the outside of the shell liner so that the holes of both jaw rings are aligned. It is designed to adjust the particle size of the crushed material passing through.

[Effect]

Since this invention has the above configuration, when the grinder rotates together with the rotating shaft due to the operation of the crusher, the breaker hammer rotating above the grinder,
The crushed material is further finely crushed by the grinder and the outer shell liner, and is discharged from the discharge port through the holes of the fixed jaw ring and the movable jaw ring below.

Further, the particle size is adjusted by rotating the movable jaw ring and shifting the holes of the upper and lower jaw rings.

〔Example〕

1 and 2 show an embodiment of this invention, and since the basic structure from the crusher is the same as the conventional example shown in FIG. 3, only the different points will be explained.

In this figure, 1 is a fixed jaw ring, 2
is a movable jaw ring, and 3 and 4 are a plurality of holes provided in each ring 1 and 2.

A ring-shaped distance piece 5 with an opening 8 formed by cutting out a portion of the ring-shaped distance piece 5 is stacked on the outer periphery of the lower surface of the fixed jaw ring 1 and is fixed between the flanges 28 and 29 with a plurality of bolts 6.

The movable jaw ring 2 is rotatably fitted into the distance piece 5, and an operation member 7 protruding from a part of its outer periphery protrudes outside from an opening 8 in a part of the distance piece 5. By rotating the member 7, the holes 3 and 4 of the upper and lower jaw rings 1 and 2 are shifted, and the area of the opening formed by the holes 3 and 4 is increased or decreased to adjust the grain size.

Therefore, the distance between the inner periphery of the jaw rings 1 and 2 and the outer periphery of the rotor 24 is made as small as possible.

In the embodiment, a long hole 9 is provided in the operating member, and a bolt 10 and a nut inserted into the long hole 9 are used to connect the flange 2.
Since it is fixed to the extension part 16 of 9,
After loosening the bolt 10 and rotating the movable chiyo ring 2 to adjust the particle size, the movable chiyo ring 2 is fixed by tightening the bolt 10.

Alternatively, the movable jaw ring 2 can be rotated by a hydraulically or electrically driven actuator so that the particle size can be adjusted automatically both during operation and when stopped.

〔effect〕

As mentioned above, this device is equipped with a fixed jaw ring having a plurality of holes through which the crushed material passes, and a rotatable movable jaw ring is superimposed on the fixed jaw ring. Also, since a plurality of holes are provided that match the holes of the fixed jaw ring, and the movable jaw ring is rotated from the outside of the shell liner, the maximum The particle size of the crushed material can be adjusted freely by shifting the holes of both jaw rings from the grain size, but this adjustment can be done by only slightly rotating the movable jaw ring. It is much easier to perform than conventional adjustment devices, and can be easily adjusted during operation. In addition, since the size of the hole is adjusted, there is a unique effect that there is no risk of long objects or large plate-like objects passing through.

[Brief explanation of the drawing]

Figure 1 is a longitudinally sectional front view of the main parts of a crusher implementing this idea, Figure 2 is a cross-sectional plan view taken along line A-A in Fig. 1, and Figure 3 is a longitudinal sectional view of the main parts of a conventional crusher. The front view and FIG. 4 are cross-sectional plan views taken along line BB in FIG. 3. 1... Fixed jaw ring, 2... Movable jaw ring, 3, 4... Hole, 5... Distance piece, 8
... Opening, 7... Operating member, 11... Discharge ring, 12... Shell, 13, 14... Shell liner, 15... Rotating shaft, 19... Breaker hammer, 25
...grinder.

Claims (1)

[Scope of utility model registration request] In a crusher in which a breaker hammer, a grinder, etc. are attached to a rotating shaft provided at the center of a cylindrical shell with a shell liner fixed inside, a fixed chute having a plurality of holes for passing crushed materials in the lower part of the shell is used. A yoke ring is provided, and a rotatable movable yoke ring is stacked on the fixed yoke ring, and this movable yoke ring is also provided with a plurality of holes that match the holes of the fixed yoke ring, and this movable yoke ring A particle size adjustment device in which the yoke ring is rotated from the outside of the shell liner and the particle size of the crushed material passing through is adjusted by the misalignment of the holes in both yoke rings.