JPH0663433A - Vertical impact type crusher - Google Patents

Abstract

PURPOSE:To provide the title crusher easily performing the up-and-down position altering work of an abraded anvil and the replacing work of said anvil. CONSTITUTION:In a vertical impact type crusher 1, the peripheral wall of a casing consists of a plurality of divided peripheral walls 3 divided in the circumferential direction thereof. The respective divided peripheral walls 3 are supported on a fixed casing 5 through a fucrum shaft 4 so as to be freely revolvable in a horizontal direction. Therefore, when an anvil 6 abraded by the collision of the raw material discharged from a rotor 12 is replaced, the divided peripheral walls 3 can be drawn out of the casing by revolving said walls 3 around the fulcrum shaft 4. By this constitution, without detaching the upper cover constituting the casing, the abraded anvil 6 can be easily replaced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical shaft for crushing a raw material discharged from a rotor rotating around a vertical axis in a casing by colliding it with an anvil fixed to an inner surface of a peripheral wall of the casing. Type impact crusher, and more particularly, to a vertical impact crusher in which the position of a worn anvil can be easily changed and replaced.

[0002]

2. Description of the Related Art An example of a conventional vertical impact type crusher as described above is shown in FIG. Vertical impact crusher 1 _a shown in FIG.
According to the method, in the casing consisting of the cylindrical peripheral wall 13 and the disk-shaped upper cover 14 and the lower cover 15, the raw material is charged into the rotor 12 rotating at a high speed around the vertical axis of the drive shaft 17. The raw material charged through the port 16 is horizontally discharged from a projection port (not shown) provided in the rotor 12 by a centrifugal force. In addition, the plurality of anvils 6,
The collision surface is arranged so as to be substantially perpendicular to the tangential direction from the rotor 12, and is fixed to the inner surface of the peripheral wall 13 via the anvil support portion 7. Then, the raw material discharged from the rotor 12 collides with the collision surface of the anvil 6 and is crushed into a product. Since the vertical discharge position of the raw material discharged from the rotor 12 is substantially constant, the wear of the part of the anvil 6 located on the discharge trajectory of the raw material significantly progresses. The local wear of the part on the discharge trajectory of the raw material has progressed, and the anvil 6 reaches the use limit in that part for several tens to several hundreds of hours. For that reason,
By moving the worn anvil 6 in the vertical direction and bringing a portion with less wear to the position of the discharge trajectory of the raw material, a device for using the anvil 6 as long as possible has been devised.

[0003]

[SUMMARY OF THE INVENTION Incidentally, in order to change the vertical position of the anvil 6 worn, above the conventional vertical impact crusher 1 _a, with a relatively large material hopper weight (not shown) It was necessary to remove the upper cover 14 from the peripheral wall 13 by releasing the bolts. Further, as shown in FIG. 6, it is necessary to adjust the vertical positions of all the anvils 6 together with the anvil support 7 by using a crane or a chain block. Then, after changing the vertical position of the anvil 6, it was necessary to bolt the upper cover 14 to the peripheral wall 13 again. Top cover 1 as above
4 is a heavy object, and its moving work is extremely difficult, and the operator has to enter the crusher having a narrow and bad atmosphere to work for adjusting the position of the anvil 6, which is a heavy labor. Therefore, an object of the present invention is to provide a vertical impact type crusher that facilitates the work of changing or replacing the vertical position of a worn anvil.

[0004]

In order to achieve the above-mentioned object, the main means adopted by the present invention is that, from the rotor rotating around the vertical axis in the casing of the substantially cylindrical housing, In a vertical impact type crusher that crushes the discharged raw material by colliding it with an anvil fixed on the inner surface of the peripheral wall of the casing, the peripheral wall of the casing is divided into a plurality of parts in the circumferential direction, and the divided peripheral wall is divided. Each of them is rotatably supported in the horizontal direction, and is configured as a vertical impact type crusher.

[0005]

In the vertical impact type crusher according to the present invention, the anvil is fixed to the inner surface of the peripheral wall of the casing which is divided into a plurality of pieces in the circumferential direction. Since the divided peripheral walls are rotatably supported in the horizontal direction, the anvil is worn, and the divided peripheral walls are changed when the vertical position of the anvil is changed or the anvil is replaced. By rotating in the horizontal direction, the anvil can be easily exposed to the outside. Therefore, it is possible to easily perform the above-mentioned operations without disassembling the casing.

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings for the understanding of the present invention. The following embodiments are examples of embodying the present invention and are not intended to limit the technical scope of the present invention. here,
1 is a plan sectional view showing a main part of a vertical impact crusher according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line BB in FIG. 1, and FIG. 3 is the vertical impact crusher. FIG. 4A is a plan view of the divided peripheral wall, FIG. 4B is a front view of the divided peripheral wall, and FIG. 4 is a state in which the divided peripheral wall is fixed to a fixed casing. Is the front view of the main part, (b)
FIG. 7A is a sectional view taken along line CC in FIG. However, elements common to those of the conventional vertical impact type crusher 1 _a shown in FIGS. 5 to 6 are designated by the same reference numerals, and detailed description thereof will be omitted. As shown in FIGS. 1 and 2, the vertical impact type crusher 1 according to the present embodiment has substantially the same basic structure as that of the conventional vertical impact type crusher 1 _a described above. differences in construction of the expression crusher 1 _a, instead of the conventional wall 13 is that using a plurality of split circumferential wall 3 which corresponds to the structure divided into a plurality of the peripheral wall 13 in the circumferential direction. Each divided peripheral wall 3 is rotatably supported in the horizontal direction via a fulcrum shaft 4 on a fixed casing 5 fixed to the upper cover 14 and the lower cover 15 by bolts. An anvil support portion 7 for mounting the anvil 6 is fixed to the inner surface of the divided peripheral wall 3 as in the conventional case. The divided peripheral wall 3 is shown in FIG.
As shown in FIG. 3, a folded-back portion 3 having an L-shaped cross section is formed on a part of the outer circumference
equipped with _b . The inner surface of the folded portion 3 _b, when closing the division wall 3 relative to the fixed casing 5, rubber packing 8 interposed and sealed between the fixed casing 5 the outer surface (see FIG. 2) is fixed ing. The rubber backing 8 is secured to the outer periphery of the outer surface of the split circumferential wall 3 that is not the folded portion 3 _b is formed, is sandwiched between the inner surface of the fixed casing 5 when closing the split circumferential wall 3 seals This prevents dust from leaking. Further, as described above, the anvil support 7
Is not a vertically movable type as in the past, but is fixed directly to the inner surface of the divided peripheral wall 3, and is compared with the position of the discharge trajectory of the raw material from the rotor 12 of the anvil support 7. A small and lightweight anvil 6 is attached.

The vertical impact type crusher 1 of this embodiment is constructed as described above. Then, when the raw material is introduced into the rotating rotor 12 from the raw material introduction port 16 of the vertical impact type crusher 1, the raw material is centrifugally generated to cause the rotor 1 to rotate.
It is emitted from the second projection along the horizontal trajectory.
It collides with the collision surface of the anvil 6 and is crushed into a product.
The divided peripheral wall 3 is rotated about the fulcrum shaft 4 and is closed with respect to the fixed casing 5, and then, as shown in FIG.
Insert the clamp bar 9 into the
The clamp bar 9 is fixed to the divided peripheral wall 3 by means of 0 to lock the clamp bar 9 to the fixed casing 5 via the rubber packing 8. When the anvil 6 is worn during the raw material crushing operation for several tens to several hundreds of hours and the worn anvil 6 needs to be replaced, the clamp bar 9 and the clamp bolt 10 are used for fixing. After the fixed state of the divided peripheral wall 3 to the casing 5 is released, as shown in FIG. 1, the divided peripheral wall 3 is rotated about the fulcrum shaft 4 in the horizontal direction (clockwise direction in the figure). As a result, the divided peripheral wall 3 is pulled out of the casing as shown by the broken line in the figure. Then, the worker can remove the anvil 6 at the position indicated by the broken line from the anvil support portion 7 and replace it with a new anvil 6. Therefore, according to the vertical impact type crusher 1 of the present embodiment, when the worn anvil 6 is replaced, for example, the conventional work of removing the heavy upper cover 14 and supporting all the anvils 6 and the anvils are performed. The replacement work can be easily performed outside the casing without the need to lift the parts 7 integrally. Thereby, the working time can be shortened. Moreover, since the anvils 6 can be removed one by one from the anvil support portion 7 and the weight per anvil is small, the work can be performed even when the anvil 6 is lifted by using a crane or a chain block. The risk is reduced. It is also possible to adopt a type in which a plurality of anvils 6 are vertically arranged and fixed as the anvil support 7, and in this case, when the wear of the anvil 6 located on the discharge trajectory of the raw material progresses. It is also possible to replace the worn anvil 6 with the anvils 6 at other upper and lower positions with less wear.

[0008]

According to the present invention, the raw material discharged from the rotor rotating around the vertical axis in the casing of the substantially cylindrical casing is made to collide with the anvil fixedly provided on the inner surface of the peripheral wall of the casing. Vertical impact type crusher characterized by dividing the peripheral wall of the casing into a plurality of parts in the circumferential direction in a vertical impact type crusher Machine is provided. This eliminates the need for disassembling the casing, for example, the upper cover when changing the vertical position of the worn anvil or replacing the anvil, and the divided peripheral walls are horizontally rotated to move the anvil outside the casing. Since it is exposed to, it is possible to extremely easily and quickly change the vertical position of the worn anvil and replace it.

[Brief description of drawings]

FIG. 1 is a plan sectional view showing a main part of a vertical impact type crusher according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line BB in FIG.

FIG. 3 shows a divided peripheral wall applied to the vertical impact type crusher, (a) is a plan view of the divided peripheral wall, and (b) is a front view of the divided peripheral wall.

4A and 4B show a state in which the divided peripheral wall is fixed to a fixed casing, FIG. 4A is a front view of a main part, and FIG. 4B is a sectional view taken along the line CC in FIG.

FIG. 5 shows a conventional vertical impact type crusher as an example of the background of the present invention, (a) is a plan view partially showing the inside of the conventional vertical impact type crusher, and (b) is a plan view. The side surface block diagram which shows the inside of the said conventional vertical impact type crusher.

FIG. 6 is a state explanatory view showing a state in which the vertical position of a worn anvil is changed.

[Explanation of symbols]

1, 1 _a ... Vertical impact type crusher 3 ... Divided peripheral wall 4 ... Support shaft 5 ... Fixed casing 6 ... Anvil 7 ... Anvil support 12 ... Rotor 14 ... Top cover

Claims (1)

[Claims] 1. A vertical impact in which a raw material discharged from a rotor rotating about a vertical axis in a casing of a substantially cylindrical casing is collided with an anvil fixed to an inner surface of a peripheral wall of the casing to be crushed. A vertical impact type crusher, characterized in that the peripheral wall of the casing is divided into a plurality of portions in the circumferential direction in the type crusher, and the divided peripheral walls are each rotatably supported in the horizontal direction.