JP2001062321A - Rotor for vertical impact type crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To constitute a guide surface for accelerating an object to be crushed and an impact surface crushing the object to be crushed of a plurality of lining members. SOLUTION: A rotor 20 is equipped with an accelerating guide surface 37 provided to a rotary plate 32 and guiding and accelerating an object to be crushed in a radial direction and an impact surface 50 discontinuous to the guide surface 37 is arranged to the outer periphery of the guide surface 37 within the rotor 20. The guide surface 37 is constituted of a plurality of freely detachable guide lining members 38. The impact surface 50 is constituted of a plurality of freely detachable impact lining members 51.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a rotor of a vertical impact crusher. More specifically, the present invention relates to a rotor of a vertical impact type crusher for producing sand by crushing aggregates such as natural rocks to a predetermined particle size.

[0002]

2. Description of the Related Art A vertical impact crusher is mainly used as a crusher for producing sand from a lump such as natural rock. This vertical impact type crusher is a collision member arranged on the outer periphery of the rotor by accelerating the mass by a rotor provided on a disk and having a guide surface for guiding the mass and discharging the mass from the rotor. It crushes by colliding with an anvil made of hard metal.

[0003] However, the conventional rotor has problems that the guide surface is accelerated to agglomerate, so that the guide surface is severely worn and the outer peripheral portion of the discharge end of the guide surface is worn. This causes the agglomerates to lose considerable velocity energy and crush and reduce efficiency. In addition, the material that forms dead stock in the rotor is difficult to rotate at high speed due to uneven distribution, and it is not expected to improve the crushing efficiency beyond a certain level.

In order to solve this problem, a guide surface for accelerating an object to be crushed is made relatively short and discharged after acceleration, and the discharged object to be crushed is crushed by being hit by a hitting surface arranged on the same rotor. A method and apparatus for synchronously performing material collision have been proposed (Japanese Patent Application Laid-Open No. 10-137605).

The present invention relates to an improvement of the method and apparatus for performing the material collision synchronously, and more particularly to the method and apparatus for crushing in synchronization with the movement of the crushed object released from the guide surface. .

[0006]

SUMMARY OF THE INVENTION The present invention has been made under the above-mentioned technical background, and achieves the following objects. An object of the present invention is to provide a rotor of a vertical impact type crusher having an exchangeable guide surface for guiding an object to be crushed for acceleration. Another object of the present invention is to provide a rotor of a vertical impact type crusher provided with a replaceable impact surface for crushing an object to be crushed.

[0007]

SUMMARY OF THE INVENTION A rotor of a vertical impact crusher of the present invention is rotatably driven and arranged in a vertical direction, fixed to the drive shaft, and driven to rotate by the drive shaft. A rotating plate, provided on the rotating plate, for guiding the crushed material in the radial direction, a guide surface for accelerating and discharging, and a surface discontinuous to the guide surface, and on an outer periphery of the guide surface. A rotor for a vertical impact type crusher, which is disposed and rotates at the same angular velocity as the guide surface, and a hitting surface for hitting the discharged crushed object, wherein the guide surface is detachably disposed. And a plurality of guide lining members. The hitting surface is constituted by a plurality of hitting lining members which are detachably arranged.

The hitting lining fixing member is detachably fixed to the hitting lining fixing member fixed to the rotating plate so as to be replaceable with a bolt. Similarly, the guide lining member is detachably fixed to the guide lining fixing member fixed to the rotating plate by a bolt.

The rotating plate is composed of an upper rotating plate and a lower rotating plate arranged in parallel. In the outer periphery of the lower rotating plate, if the passage portion of the object to be crushed discharged from the guide surface is notched, the probability that the object to be crushed comes into contact is reduced, so that the wear portion is reduced. The guide lining member is preferably made of cemented carbide, and the impact lining member is preferably made of super-tough steel. Further, the guide lining member and the impact lining member may be used in combination of different kinds of metals such as cemented carbide, super-tough steel, steel material, and the like, if necessary.

[0010]

[Embodiment] Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of the present invention and is a sectional view of a vertical impact type crusher.
FIG. 2 is a cross-sectional plan view taken along the line II-II of FIG.
FIG. 3 is a sectional plan view taken along line III-III in FIG. The housing 1 includes a lower housing 2 and an upper housing lid 3 disposed on the upper portion and fixed at one end by a bolt 4 which swings. The upper housing lid 3 is opened and closed with respect to the lower housing 2 by a hydraulic cylinder 9.

On the side surface of the lower housing 2, a turning shaft 5 is arranged in a vertical direction. The turning shaft 5 is swingably supported by the lower housing 2. A lever support 6 is fixed to the upper part of the turning shaft 5. Lever support 6
At the uppermost part, one end of a lever 7 is swingably supported by a shaft 8. Between the lever support 6 and the lever 7,
A hydraulic cylinder 9 is interposed.

The lower end of the hydraulic cylinder 9 is swingably supported by a lever support 6, and the piston of the hydraulic cylinder 9 is swingably supported by a lever 7. Upper housing lid 3
A guide plate 10 extending in a radial direction from a rotation center line of the rotor 20 is disposed on a lower surface of the rotor 20. A plurality of guide plates 10 are arranged on the outer periphery of the vertical rib 13 at equal angles. At the time of crushing the raw material stone, a high-speed rotation of the rotor 20 generates a pressurized air flow.

This air flow is generated by the rotation of the rotor 20 and travels in the outer circumferential direction. Then, the air flow collides with the anvil 22 and the like to bend and rise in direction, and further the guide plate 10, the vertical ribs 13 and the lower guide chute 15 A circulating air flow is formed through which the air flows downward. Since the guide plate 10 creates a rectified air flow without disturbance, the loss of energy by the rotor 20 is small,
As a result, the energy efficiency for crushing is increased. Loosen the bolts 4 and attach the upper housing lid 3 to the lower housing 2
Is released and the hydraulic cylinder 9 is driven, the lever 7 swings about the shaft 8 and the upper housing lid 3 can be removed from the lower housing 2.

On the upper housing lid 3, a tubular inlet 11 is arranged. Further, a tubular upper guide chute 12 is disposed inside the upper chute. On the outer periphery of the upper guide chute 12 and on the lower surface of the upper housing lid 3,
The upper end of the plate-shaped vertical rib 13 is fixedly arranged. The vertical ribs 13 are arranged on the lower surface of the upper housing lid 3 and on the outer periphery of the upper guide chute 12 at equal angular intervals in the radial direction. The vertical rib 13 also has a function of rectifying the wind similarly to the guide plate 10.

A side surface of an annular fixing flange 14 is fixed to a lower end of the vertical rib 13. A lower guide chute 15 is arranged at the center of the fixed flange 14. The lower surface of the fixed flange 14 is provided with a replaceable lining plate 16.
Are fixed with bolts. A rotor 20 is arranged at a center position of the housing 1. The detailed structure of the rotor 20 will be described later.

A large number of anvils 2 are provided on the outer periphery of the rotor 20.
2 are arranged in a ring shape. An anvil support frame 21 is arranged on the inner periphery of the lower housing 2. An anvil 22 is detachably fixed to the inner peripheral surface of the anvil support frame 21. The anvil 22 is made of a hard and highly wear-resistant metal material, and is a member against which the crushed object collides. The anvil 22 is worn by the collision, and is detachably provided to be replaced when the wear progresses. . Anvil 22
The fixing mechanism is a well-known technique, and its description is omitted.

The anvil support frame 21 is mounted on a plurality of stacked height adjusting plates 25. Height adjustment plate 2
5 is mounted on an adjustment plate support 26 fixed along the inner peripheral surface of the lower housing 2. The relative height between the anvil support frame 21 and the rotor 20 can be adjusted by adjusting the number of stacked height adjustment plates 25. This height adjustment is performed to make the anvil 22 wear even and extend the life of the anvil 22.

[Rotor 20] FIG. 3 is a plan sectional view taken along line III-III in FIG. FIG. 4 is a plan view of the rotor, and FIG. 5 is a partial three-dimensional view of the rotor. As shown in FIG. 1, a bearing 31 is fixed to a taper at an upper end of the drive shaft 30 by a bolt (not shown). A disk-shaped lower rotating plate 32 is integrally provided on the outer periphery of the bearing 31 by welding. The lower rotating plate 32 moves the disk L to the equiangular position.
A notch 33 cut in a letter shape is formed. The outer periphery of the lower rotary plate 32 has a shape in which an arc portion 34 and a notch 33 are continuous.

The space of the notch 33 is a space for the raw material ore, which is the object to be crushed, to be discharged and moved or fly as described later. On the upper surface of the central portion of the lower rotating plate 32, a disk-shaped distribution plate 35 having a high center is arranged and fixed by bolts (not shown). An outer periphery of the distribution plate 35 is formed with a step 36 having an L-shaped cross section. Distribution plate 35
Is formed on the discharge path lining 43 which is a plate material, is pressed from above by a step 46 having an inverted L-shaped cross section, and is fixed to the lower rotary plate 32.

An acceleration guide surface 37 for accelerating the raw material stone is formed from a position at a radius R from the rotation center of the lower rotary plate 32. The acceleration guide surface 37 is a surface parallel to a surface including the center line of the drive shaft 30, and is a surface for rotating the raw material stone to roll or slide thereon to accelerate it. The curve drawn by the raw material stone at the time of this acceleration draws a substantially spiral Archimedean curve as viewed from the stationary inertial system of the rotor 20. The acceleration guide surface 37 has a distance W at an angle α with respect to the radial direction from the position of the radius R in plan view shown in FIG.

The raw ore is accelerated by the time required for the raw ore to roll between the acceleration guide surfaces 37. The feature is that the distance W of the acceleration guide surface 37 is shorter than that of the conventional rotor 20. The principle of acceleration for this raw material stone is well known and its description is omitted.
-137605). The acceleration guide surface 37 is provided with a guide lining member 38 made of wear-resistant cemented carbide.
Are formed to be detachable.

One guide lining member 38 is in the shape of a rectangular parallelepiped. Two guide lining members 38 are arranged in the horizontal direction, three are stacked vertically, and a total of six are arranged and formed. The guide lining member 38 is fixed to the side surface of the fixing plate 39 by bolts 41 and positioning pins (not shown). The fixing structure of the guide lining member 38 is substantially the same as that of a hitting lining member 51 to be described later, and a description thereof will be omitted. The lower end of the fixed plate 39 is fixed to the lower rotary plate 32 by welding, and the fixed surface 40 as a side surface is parallel to the axis of the drive shaft 30 at three equal angular positions of the lower rotary plate 32. Are located.

The upper end of the fixed plate 39 is a disc-shaped upper rotating plate 6
0 is fixed to the lower surface by welding. That is, the three fixed plates 39 arranged at equal angular positions are also members that connect the lower rotary plate 32 and the upper rotary plate 60. A guide lining member 38 made of a wear-resistant cemented carbide is fixed to the fixing surface 40 by screws 41 from the back surface of the fixing plate 39.

A total of six guide lining members 38 are arranged and fixed to one fixed plate 39. Each guide lining member 38 is divided into six parts and has the same shape. Therefore, when only a specific guide lining member 38 is worn, only that part is replaced, or replaced with another part having little wear to be worn uniformly. There are advantages that can be. Each fixing plate 39 is provided with an L-shaped partition plate 42 that is continuous with the fixing plate 39 and forms an angle. The partition plate 42 is a lower rotary plate 32.
And the upper rotating plate 60.

The partition plate 42 itself does not have the function of accelerating the raw material ore, so that it is not necessary in principle for crushing. Adjacent partition plate 42, guide lining member 3
8, a plate-shaped discharge passage lining 43 is arranged and fixed on the lower rotary plate 32 in a section surrounded by the distribution plate 35 and the fixed plate 39. The discharge path lining 43 is fixed by bolts 44 screwed from the lower surface of the lower rotary plate 32. A rectangular positioning member 45 is fixed to the lower rotating plate 32.

The discharge passage lining 43 is positioned and fixed on the lower rotary plate 32 by a positioning member 45. The discharge passage lining 43 is periodically replaced because it is worn by use. The drive shaft 3 is provided at an outer peripheral position of the lower rotary plate 32.
A striking surface 50 which is a plane parallel to a plane including the center line of 0 is formed, and the striking surface 50 has a distance W2 from the position of the radius R2 in the radial direction at an angle β with an angle β in plan view shown in FIG. The hitting surface 50 is a surface for receiving and hitting the raw material stone accelerated by the acceleration guide surface 37.

The striking surface 50 is a striking lining member 5 made of a super-tough steel such as manganese steel which is sticky and resistant to impact.
1 is provided detachably. One impact lining member 51 has a rectangular shape having the same shape, and is arranged three in the horizontal direction and three in the vertical direction. As shown in FIG.
Is fixed to the side surface of the impact fixing plate 52 with bolts 54 and positioning pins (not shown). The lower end of the impact fixing plate 52 is fixed to the lower rotary plate 32, and the impact lining member fixing surface 53, which is the side surface, is parallel to the axis of the drive shaft 30 at three equal angular positions of the lower rotary plate 32. Are arranged as follows.

The upper end of the impact fixing plate 52 is fixed to the lower surface of the disk-shaped upper rotating plate 60. That is, the three striking fixing plates 52 arranged at equal angular positions are members that connect the lower rotating plate 32 and the upper rotating plate 60. Three reinforcing members 55 are arranged at equiangular positions in a plate shape following the impact fixing plate 52. The upper and lower ends of the reinforcing member 55 are connected to the lower rotary plate 32 and the upper rotary plate 60, respectively. Upper rotating plate 60
, An upper lining member 61 is fixed by bolts 62. An inlet 63 is opened at the center of the upper rotating plate 60. The charging port 63 is an opening for charging the crushed material.

(Operation of Embodiment) The operation of the above-described embodiment will be described below. When the drive shaft 30 starts and rotates an electric motor (not shown), the rotor 20 rotates. When the material to be crushed is introduced from the inlet 11, the material to be crushed is
And enters the inlet 63 of the upper rotary plate 60 of the rotor 20. The crushed material put into the rotor 20 falls on the distribution plate 35.

The crushed object dropped on the distribution plate 35 slides on the crushed object and reaches the acceleration guide surface 37. The object to be crushed that has reached the acceleration guide surface 37 reaches the outer peripheral end thereof while being rolled by the length W for the acceleration guide surface 37 because the acceleration guide surface 37 is rotated. When the crushed material reaches the outer end of the acceleration guide surface 37, it is discharged in the outer peripheral direction. The principle of acceleration and the direction of emission of the workpiece are known and will not be described in detail here.

The crushed object discharged with acceleration is hit and crushed by the hitting surface 50 rotating at the same angular velocity as the acceleration guide surface 37. The crushed pieces of the object to be crushed further collide with the anvil 22 disposed on the outer periphery of the rotor 20 and are further broken into pieces. As described above, the flow of the material to be crushed creates a specific flow and wears a specific portion.

However, each guide lining member 38
Is divided into six parts and has the same shape. Therefore, when only a specific guide lining member 38 is worn, it is possible to replace only that part or replace it with another part having little wear so as to wear it uniformly. Similarly, the impact lining member 51
Have the same rectangular shape, and can be replaced as necessary.

(Other Embodiments) In the above embodiment, the acceleration guide surface 37 is divided into six and the hitting surface 50 is divided into nine, but the number of divisions is not limited to this. Although the acceleration guide surface 37 is made of the same material and made of a cemented carbide having high wear resistance, the material is different between a portion where the crushed object comes into contact and where the wear is large and another portion. It may be something. Similarly, if the impact surface 50 is made of a material having a high impact resistance only at a portion having a high impact probability, and a portion having a relatively low probability of being an impact surface is made of ordinary steel, it is advantageous in terms of cost.

In short, the materials of the acceleration guide surface 37 and the striking surface 50 are as follows.
The combination of shapes is arbitrarily selected according to the required characteristics in terms of cost and function. In the above-described embodiment, the anvil 22 is arranged on the outer periphery of the rotor 20. However, the invention can also be applied to a well-known vertical impact crusher of a dead stock type in which crushed material is deposited and collides with the crushed material.

[0035]

The rotor of the vertical impact crusher of the present invention is
Since the guide surface for accelerating the crushed object and the hitting surface for hitting and crushing the crushed object are made of divided lining material, they can be replaced and exchanged, so that there is an effect that uniform wear and long life can be achieved. .

[Brief description of the drawings]

FIG. 1 is a sectional view of a vertical impact crusher, showing an embodiment of the present invention.

FIG. 2 is a cross-sectional plan view taken along line II-II in FIG.

FIG. 3 is a sectional plan view cut along the line III-III in FIG. 1;

FIG. 4 is a plan view of a rotor.

FIG. 5 is a partial perspective view of a rotor.

FIG. 6 is an exploded view of a striking plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Housing 2 ... Lower housing 3 ... Upper housing lid 9 ... Hydraulic cylinder 20 ... Rotor 12 ... Upper stage chute 13 ... Vertical rib 32 ... Lower rotating plate 37 ... Acceleration guide surface 38 ... Guide lining member 39 ... Fixed plate 40 ... Fixed surface 42 ... compartment plate 50 ... hitting surface 51 ... hitting lining member 52 ... hitting fixing plate 60 ... upper rotating plate 61 ... upper lining member

Claims (7)

[Claims] 1. A drive shaft that is driven to rotate and is disposed in a vertical direction; a rotary plate fixed to the drive shaft and driven to rotate by the drive shaft; Guide to
A guide surface for accelerating and discharging, and a surface that is discontinuous to the guide surface and that is arranged on the outer periphery of the guide surface, rotates at the same angular speed as the guide surface, and hits the discharged crushed object. A vertical impact type crusher, comprising: a plurality of guide lining members which are detachably arranged. Crusher rotor. 2. A drive shaft which is rotationally driven and is disposed in a vertical direction; a rotary plate fixed to the drive shaft and driven to rotate by the drive shaft; Guide to
A guide surface for accelerating and discharging, and a surface that is discontinuous to the guide surface and that is arranged on the outer periphery of the guide surface, rotates at the same angular speed as the guide surface, and hits the discharged crushed object. A vertical impact type crushing machine comprising: a vertical impact type crusher, comprising: a plurality of impact lining members which are detachably arranged. Crusher rotor. 3. The hitting lining member according to claim 1, wherein the hitting lining member is fixed, the hitting lining fixing member fixed to the rotating plate, and the hitting lining member is detachably attached to the hitting lining fixing member by a bolt. A rotor for a vertical impact crusher, which is fixed. 4. The guide lining member according to claim 1, wherein the guide lining member is fixed, the guide lining fixing member fixed to the rotating plate, and the guide lining member is detachably attached to the guide lining fixing member by a bolt. A rotor for a vertical impact crusher, which is fixed. 5. The rotating plate according to claim 1, wherein the rotating plate has a lower rotating plate disposed below and an opening that is disposed in parallel above the lower rotating plate and that drops the object to be crushed at a central portion. A rotor for a vertical impact type crusher, characterized in that an upper rotating plate provided and an outer periphery of the lower rotating plate are notched in a passage portion of the object to be crushed discharged from the guide surface. 6. The rotor for a vertical impact crusher according to claim 1, wherein the material of the guide lining member is a cemented carbide. 7. A rotor for a vertical impact crusher according to claim 1, wherein the material of the impact lining member is super-tough steel.