JPH038359Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a grain grinding roll.

(Prior Art) Conventionally known grain grinding rolls have a cylindrical shape with a large diameter, and are formed by hardening the material in a mold and firing it in a furnace.

Note that Figures 1 and 2 are the applicant's earlier application.

A is an iron arc-shaped mounting body made of a cylinder divided into two parts, and is fixed by tightening with screw B so that it can be disassembled. A window hole C is bored in the iron arc-shaped mounting body A, and a grinding piece D is fitted into the window hole C from the inside, so that the outer surface E protrudes outward from the mounting body A, and the inside of the grinding piece D is in contact with the grinding piece D. Let them come into contact with you. F is the blowhole.

(Problems to be solved by the invention) The above-mentioned known products often break during firing in the furnace.

The problem in FIGS. 1 and 2 is that gaps are created between the grinding piece D and the rotation axis G, and between the grinding piece D and the window hole C. If the size of the window hole C is slightly larger than the grinding piece D, even if the grinding piece D is in contact with the rotating shaft G,
If a gap is created in the window hole C and the size of the window hole C is slightly small, the arc-shaped attachment bodies A and A will not be joined even if the screw B is tightened.

That is, by tightening the screw B, the grinding piece D is pushed outward by the rotating shaft G, and when the tightening is finished, the window hole C and the grinding piece D must be manufactured so that they are in close contact with each other. It requires high precision and is difficult to manufacture.

(Means for Solving the Problem) Therefore, in the present invention, a window hole 2 is opened in an iron circular arc-shaped mounting body 1 having a cylindrical halves, and a grinding roll 4 formed in a semi-cylindrical shape is attached to a steel plate with an adhesive 11. Mounting piece 6
The iron mounting piece 6 has both ends protruding outward from the grinding roll 4 at right angles to form a protruding piece 8 and a protruding piece 10, and the outer surface 5 of the grinding piece 4 is attached to the outside through the window hole 2. The grain grinding roll has a structure in which the projecting piece 8 and the projecting piece 10 are clamped and fixed by the left and right circular arc-shaped mounting bodies 1, 1.

(Example) An embodiment of the present invention will be described with reference to a drawing. A hollow cylinder is divided into two to form an arc-shaped iron mounting body 1, and the arc-shaped mounting body 1 has a rectangular window hole when viewed from the front. form 2. The window hole 2 is as shown in Figure 4.
The outside is slightly narrower than the inside. 3 is the outer circumferential surface of the arc-shaped mounting body 1.

Therefore, the grinding piece 4 does not have a structure in which it is adhered to the rotating shaft G like the grinding piece D, but is formed so as to have a considerable annular gap between it and the rotating shaft 13 provided at the center. The inner surface of the grinding piece 4 is a circular arc surface, and the circular arc portion 7 of the iron mounting piece 6 formed of an iron plate is adhesively fixed to the circular arc surface via an adhesive 11.

The iron mounting piece 6 is bent outward at right angles on both sides of the circular arc portion 7, and has a protruding piece 8 on one side and a protruding piece 10 on the other side, and the protruding piece 8 has a notch 9 for blowing air. Form. 12 is a seam of the arc-shaped mounting body 1, and 14 is a set screw.

(effect) Next, we will discuss the effect.

Since the arc-shaped mounting body 1 is usually formed of casting,
At the same time, window holes 2, joints 12, etc. are also formed.

Then, the adhesive 11 is applied to the inner surface of the separately formed grinding piece 4 and fixed on the circular arc part 7 of the iron mounting piece 6, so that the mutually protruding pieces of the two iron mounting pieces 6, 6 8 and the protruding piece 10 are provided in a state that they are aligned with each other, and are made to face the window holes 2, 2 of the arc-shaped mounting bodies 1, 1, so that the outer circumferential surfaces 5, 5 of the grinding pieces 4, 4 are aligned with the outer circumferential surfaces 3, 3. It should be held so that it protrudes further outward.

At this time, even if the protruding piece 8 and the protruding piece 10 of both the grinding pieces 4 are both held in the seam 12 of the arc-shaped mounting body 1, the grinding piece 4 and the window hole 2 may not come into close contact with each other. The protruding piece 8 and the protruding piece 10 are both held at the seam 12 of the arc-shaped mounting body 1, and the set screw 1
If it is tightened and fixed by step 4, it will be completely fixed.

(Effects) Conventionally known grain grinding rolls have a large diameter cylindrical shape and are formed by hardening the material in a mold and firing it in a furnace. Note that Figures 1 and 2 are the applicant's earlier application. A is an iron arc-shaped mounting body made of a cylinder divided into two parts, and is fixed by tightening with screw B so that it can be disassembled. A window hole C is bored in the iron arc-shaped mounting body A, and a grinding piece D is fitted into the window hole C from the inside, so that the outer surface E protrudes outward from the mounting body A, and the inside of the grinding piece D is in contact with the grinding piece D. Let them come into contact with you. F is the blowhole.

However, the above-mentioned known materials often break during firing in the furnace. The problem with Figures 1 and 2 is that
A gap is created between the grinding piece D and the rotation axis G, and between the grinding piece D and the window hole C. If the size of the window hole C is slightly larger than the grinding piece D, there will be a gap in the window hole C even if the grinding piece D is in contact with the rotating shaft G, and if the size of the window hole C is slightly smaller, the screw Even if B is tightened, arc-shaped mounting bodies A and A will not be joined. That is, by tightening the screw B, the grinding piece D must be pushed outward by the rotating shaft G, and when the tightening is completed, the window hole C and the grinding piece D must be manufactured so that they are in close contact with each other.
It requires considerable precision and is difficult to manufacture.

However, in the present invention, a window hole 2 is opened in a cylindrical halves of an arc-shaped iron mounting body 1, and a grinding roll 4 formed in a semi-cylindrical shape is attached to an iron mounting piece 6 using an adhesive 11. Both ends of the grinding piece 6 project outward from the grinding roll 4 at a right angle to form a protruding piece 8 and a protruding piece 10, and the outer surface 5 of the grinding piece 4
project outward from the window hole 2, and the projecting piece 8
Since the grain grinding roll is structured such that the projecting piece 10 is clamped and fixed between the left and right circular arc-shaped mounting bodies 1, 1, the projecting piece 8 and the projecting piece 10 of both grinding pieces 4 are both circular. Seam 12 of arc-shaped mounting body 1
Although the grinding piece 4 and the window hole 2 may not come into close contact with each other even if the grinding piece 4 and the window hole 2 are sandwiched between Once fixed, it has the effect of being completely fixed.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a known example, FIG. 2 is a perspective view of a known example, FIG. 3 is an exploded view of the present invention, and FIG. 4 is a sectional view of the present invention. Explanation of symbols, 1...Circular mounting body, 2...Window hole, 3...Outer peripheral surface, 4...Grinded piece, 5...Outer peripheral surface, 6...Iron mounting piece, 7...Circular arc part, 8 ... Projection piece, 9 ... Notch, 10 ... Projection piece, 11 ...
Adhesive, 12... Seam, 13... Rotating shaft, 14
...Set screw.

Claims (1)

[Scope of utility model registration request] Window hole 2 in iron arc-shaped mounting body 1 with cylindrical halves
A grinding roll 4 formed in a semi-cylindrical shape is attached to an iron mounting piece 6 using an adhesive 11, and both ends of the iron mounting piece 6 are made to protrude outward from the grinding roll 4 at a right angle. and a protruding piece 10 is formed, the outer surface 5 of the grinding piece 4 is made to protrude outward from the window hole 2, and the protruding piece 8 and the protruding piece 10 are clamped and fixed by the left and right arc-shaped mounting bodies 1, 1. Grain grinding roll.