JP3152374B2 - Vertical impact crusher rotor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical impact crusher. More specifically, the present invention relates to a rotor of a vertical impact type crusher for crushing aggregates such as natural rocks to a predetermined particle size.

[0002]

2. Description of the Related Art Lumps such as natural rocks are crushed according to various uses such as concrete aggregates, paving stones and roadbed materials. One of the crushers for performing such crushing is a vertical impact type crusher.

In this vertical impact crusher, a rotor provided with a plurality of blades on its upper surface is rotated at a high speed, and the raw material charged is accelerated by the blades. And crush it by colliding with the anvil. In such a crushing process, a large impact force is applied to the wing and the anvil, and these members are easily worn.

[0004] For this reason, manganese steel or the like is used as a material for the wing and the anvil. However, even if such a material is used, wear of these members is inevitable, and the number of replacements increases. Various proposals have been made to reduce the number of replacements of these members.

As a proposal aimed at reducing the number of times of replacing blades, for example, a vertical impact-type crusher disclosed in Japanese Patent Application Laid-Open No. 62-193657 is known. In this crusher, a pair of blades defining a discharge path are provided symmetrically in the radial direction on the upper surface of the rotor, and the rotor is rotated forward and reverse to avoid uneven wear of the blades. According to this crusher, the range of collision between the rough and the blade is widened by the forward and reverse rotation of the rotor, and uneven wear can be prevented to some extent, so that the number of times of blade replacement is reduced.

[0006] As described above, the raw material ore is put into the rotor from above. Therefore, even with such an impact crusher, it is inevitable that the wear concentrates only on the lower part of the blade. Furthermore, the wings used in this type of crusher are heavy and difficult to maintain.

Further, US Pat. No. 4,090,673 discloses a vertical impact crusher obtained by improving an impeller table liner. However, the U.S. patent does not give any details on improving the wear of the wing.

[0008]

SUMMARY OF THE INVENTION The present invention has been made based on the above-mentioned conventional technical background, and has the following objects.

SUMMARY OF THE INVENTION An object of the present invention is to provide a rotor of a vertical impact type crusher capable of reducing the number of blade replacements by abrading the blades over the entire surface thereof.

It is another object of the present invention to provide a rotor of a vertical impact type crusher which can easily perform the maintenance and the work of attaching and detaching the wings.

[0011]

The present invention employs the following means to achieve the above object.

According to the present invention, a centrifugal force is applied to a housing, a vertical rotation shaft provided in the housing and rotated at a high speed, and an upper end of the vertical rotation shaft, and a crushed object put in the housing is provided. A vertical impact type crusher having a rotor that is provided and discharged toward an impacted surface disposed on the outer periphery, wherein a driving unit for rotating the vertical rotation shaft in a forward and reverse direction is fixed to the vertical rotation shaft. Rotor body, a substantially disk-shaped distribution plate disposed at the center of the upper surface of the rotor body, and a plurality of standing members arranged at equal angular intervals on the outer periphery of the distribution plate on the upper surface of the rotor body. And a wing disposed on the post so as to cover at least two sides of each of the posts substantially in the radial direction of the rotor body, and to detachably hold the wing to the post. Holding means and each other A discharge path formed between the contacting wings, a discharge path liner arranged in the discharge path, and the wings are formed from a base portion of the wing that covers the radially inner end surface of the column and both ends of the base portion. Extending radially outward,
A pair of wing plates covering the both side surfaces of the support, wherein the holding means of the wing is inserted into a horizontal hole provided in alignment with the base and the support of the wing, respectively; And a rotor for a vertical impact type crusher, comprising:

According to the present invention, a centrifugal force is applied to a housing, a vertical rotation shaft provided in the housing and rotated at a high speed, and an upper end of the vertical rotation shaft provided to the crushed object put in the housing. A vertical impact type crusher having a rotor that is provided and discharged toward an impacted surface disposed on the outer periphery, wherein a driving unit for rotating the vertical rotation shaft in a forward and reverse direction is fixed to the vertical rotation shaft. Rotor body, a substantially disk-shaped distribution plate disposed at the center of the upper surface of the rotor body, and a plurality of standing members arranged at equal angular intervals on the outer periphery of the distribution plate on the upper surface of the rotor body. And a wing disposed on the post so as to cover at least two sides of each of the posts substantially in the radial direction of the rotor body, and to detachably hold the wing to the post. Holding means and each other A discharge path formed between the adjacent wings, a discharge path liner disposed in the discharge path, and the wing, the base of the wing covering the radially inner end face of the column, and both ends of the base. A pair of blades extending radially outward from the support column and covering the both side surfaces of the column, and a curved portion that connects between the tips of the blade plates and covers the radially outer end surface of the column, Said holding means of the wing,
A rotor for a vertical impact type crusher, comprising a horizontal hole provided in alignment with the base and the column of the wing, and a pin inserted into the horizontal hole.

According to the present invention, a centrifugal force is applied to a housing, a vertical rotation shaft provided in the housing and rotated at a high speed, and an upper end of the vertical rotation shaft, and the crushed material put in the housing. A vertical impact type crusher having a rotor that is provided and discharged toward an impacted surface disposed on the outer periphery, wherein a driving unit for rotating the vertical rotation shaft in a forward and reverse direction is fixed to the vertical rotation shaft. Rotor body, a substantially disk-shaped distribution plate disposed at the center of the upper surface of the rotor body, and a plurality of standing members arranged at equal angular intervals on the outer periphery of the distribution plate on the upper surface of the rotor body. And a wing disposed on the post so as to cover at least two sides of each of the posts substantially in the radial direction of the rotor body, and to detachably hold the wing to the post. Holding means and each other A discharge path formed between the adjacent wings, a discharge path liner disposed in the discharge path, and a pair of blades in which the wings cover the both side surfaces of the column independently of each other; The holding means is formed in a groove formed on the both side surfaces of the support, a surface of each wing plate facing the support, and a projection engaging with the groove, and formed on an upper surface of each wing plate. A projected ridge extending in the radial direction;
A top plate disposed over the upper surface of the support column, and a hanging portion formed on a lower surface of both ends of the top plate along the radial direction and engaged with the ridges of the wing plates. Of a vertical impact type crusher.

[0015]

[0016]

[0017]

[0018]

[0019]

[0020]

[0021]

[0022]

When the rotor is rotated in the forward direction, the lower half of one of the blades is worn. If the lower half of one vane wears, the rotor is rotated in the opposite direction. This causes the lower half of the other blade to wear. When the lower halves of both wing plates are worn by the forward / reverse rotation as described above, the wings are removed from the support, and the wings are turned upside down and attached to the support. Then, the rotor is rotated in the forward direction and then in the reverse direction, and the upper half (the remaining half) of both blades is subjected to wear.

[0023]

An embodiment of the present invention will be described below with reference to the drawings.

Overall Structure of Vertical Impact Crusher FIGS. 1 to 4 show the overall structure of a vertical impact crusher. The housing comprises a lower housing 1a and an upper housing 1b removably fixed to the upper portion thereof via a stopper 9 which swings around a pin 9a. The upper housing 1b is opened and closed with respect to the lower housing 1a by a lever 5 which moves up and down by a hydraulic cylinder 4 and turns by a turning shaft 3.

The upper housing 1b has a rough ore inlet 2, and guide chutes 7, 8 are arranged in two stages below the inlet 2. The lower guide chute 8 is provided at the lower end of a plurality of vertical ribs 8a arranged so as to be entirely annular. Further, a rotor 10 is arranged below the guide chute 8.

The rotor 10 is fixed to the upper end of the vertical rotation shaft 11. The vertical rotation shaft 11 is rotatably accommodated in a shaft housing 15 via bearings 13 and 14. The shaft housing 15 is supported by the lower housing 1a via a bracket 16. A pulley 17 is provided at the lower end of the vertical rotation shaft 11, and the vertical rotation shaft 11 is rotated forward and reverse by a motor and a belt (not shown) that can rotate forward and backward.

Anvil Elevating Structure As shown in FIGS. 2 to 4, a number of anvils 18 are arranged around the rotor 10 in a ring shape. Each anvil 18 is mounted on a support frame 60.

The support frame 60 has an outer shape of the lower housing 1a.
It has a pair of upper and lower frame plates 61a and 61b each having a rectangular shape somewhat smaller than that and having a circular hole 62 in the center. These upper and lower frame plates 61a, 61b are connected by a number of ribs 61c arranged at intervals in the circumferential direction. A mounting frame 63 for the anvil 18 is provided on the inner peripheral surfaces of the upper and lower frame plates 61a and 61b.

The anvil 18 is, as shown in FIG.
A flat surface 64 is provided on the front surface on the rotor 10 side, and tapered surfaces 65a and 65b are provided on both sides thereof. Anvil 18
Has a projection 66 on the back surface, and the projection 66 is provided with a pair of vertical grooves 67a and 67b. Anvil 18
Is mounted on the mounting frame 63 as follows.

That is, as shown in FIGS. 6 and 7,
The protrusions 66 of the anvil 18 are inserted into mounting holes 68 provided in the mounting frame 63, respectively. On the other hand, a pair of guide plates 69a, 6
9b is provided. A reverse U-shaped retaining plate 70 is formed along the guide plates 69a, 69b by the vertical grooves 67a, 6 of the projection 66.
7b. Thus, each anvil 18 is fixed to the mounting frame 63. The mounting structure itself of the anvil 18 has already been proposed by the present applicant, and details thereof are described in Japanese Patent Application Laid-Open No. 3-26346.

Referring again to FIGS. 2 to 4, the support frame 60 of the anvil 18 can be moved up and down in the lower housing 1a in the direction of the center line of the vertical rotation shaft 11. Support brackets 71 are provided at four corners of the lower housing 1a, and the lower end of the support frame 60 is supported by the support bracket 71 at the lowest position. The support frame 60 is shown on the right side of FIG.
Is in the lowest position.

Hydraulic cylinders 72 are provided vertically near the support brackets 71, and the support frames 60 are raised and lowered by the hydraulic cylinders 72. On the support bracket 71, a spacer 73 for holding the support frame 60 at a predetermined height position is arranged. FIG. 3 shows a state where the spacer 73 is arranged on the left side. Spacer 73
Although not shown, uneven portions are formed on the upper and lower surfaces so as to fit each other, so that the upper and lower spacers do not shift. The spacer 73 is inserted through an inspection window 78 provided in the lower housing 1a.

To adjust the height position of the support frame 60, the support frame 60 is once raised by operating the hydraulic cylinder 72, and the necessary number of spacers 73 are attached to the support bracket 71.
It is carried out by placing it on the top and lowering the support frame 60. A protection plate 74 is erected on the center side of the housing 1a of each hydraulic cylinder 72, and a protection plate 75 is also provided on the lower surface of the support frame 60 so as to hang down.
This prevents rock debris from entering the hydraulic cylinder 72.

During the operation of the crusher, crushed pieces of rock scatter. For this reason, a protective liner is provided on each part such as the inner wall of the housing. In the drawings, reference numeral 77 indicates a protection liner.

[0035] Structure 8 to 11 of the rotor shows a structure of a rotor according to the invention. The rotor 10 includes a rotor body 21, a distribution plate 22,
It has a plurality of columns 23, wings 24, and a discharge path liner 25. The rotor main body 21 is formed of a disk. The vertical rotation shaft 11 is fitted to a boss 26 provided on the lower surface of the rotor body 21, and is fastened by bolts 27.

A liner 34 for protection is provided on the outer periphery of the rotor body 21 and is fixed by bolts 35. The distribution plate 22 is arranged at the center of the upper surface of the rotor main body 21. The distribution plate 22 has a flat surface 28 at the center of the upper surface and a tapered surface 29 at the outer periphery.

On the lower surface of the distribution plate 22, a circular recess 30 is provided.
A circular step 31 formed on the upper surface of the rotor body 21 is fitted into the recess 30 to position the distribution plate 22. The distribution plate 22 has a hole 32 at its center.
Is provided, and the hook of the hanging member is hooked on the hole 32 at the time of replacement.

The plurality of columns 23 are arranged on the outer periphery of the distribution plate 22. In this embodiment, three pillars 23 are provided, and are arranged at an angular interval of 120 degrees from each other. Each support 23 has a cylindrical portion at the lower end of the support body 21.
Is fitted into the hole 21a provided in the rotor main body 2 by welding.
1 is fixed. Both outer surfaces 33a and 33b of each support column 23 along the radial direction of the rotor main body 21 are tapered surfaces that spread radially outward.

The discharge liner 25 is disposed between the columns 23, 23. The discharge liner 25 has a projection 36 on the lower surface.
The protrusion 36 is fitted into a concave portion 37 provided on the upper surface of the rotor body 21 to position the discharge path liner 25. On the upper surface of the discharge liner 25, the rotor 10
Steps 38 extending in the radial direction are formed at both ends in the circumferential direction, and an inner surface 39 of the step 38 is a tapered surface.

The wing 24 is substantially U-shaped. That is, the wings 24 have a base 40 facing the center of the rotor body 21.
And a pair of blades 41a, 41b extending radially outward from both ends of the base 40. Wing plates 41a, 41
The inner peripheral surface of b has a shape that can be engaged with the tapered surfaces 33a and 33b of the column 23. Protrusions 42 extending in the radial direction of the rotor main body 21 and grooves 43 above and below the protrusions 42 are formed on the outer peripheral surfaces of the blade plates 41a and 41b.

The wings 24 are dropped from above the columns 23,
Thereby, the column 23 is roughly inserted into the wing 24. Further, the blade 24 is moved radially outward of the rotor main body 21 and is attached to the column 23 by fitting the column 23 between the two blades 41a and 41b. This wing 24
The discharge path 44 is formed between the two adjacent wings 24, 24 by the attachment.

Further, by attaching the blade 24, both ends in the circumferential direction of the discharge path liner 25, specifically, the outer portion of the step portion 38 are sandwiched between the blade 24 and the rotor body 21. Further, the base 40 of the blade 24 is received in a notch 45 provided on the outer peripheral portion of the distribution plate 22, and the distribution plate 22 is also sandwiched between the blade 24 and the rotor body 21.

The base 40 and the column 23 of the wing 24 are provided with horizontal holes 46 and 47 respectively aligned with each other, and the horizontal hole 46 is a tapered hole. These horizontal holes 46,
A pin 48 is inserted into 47, and the wing 24 is held by the column 23. Centrifugal force acts on the blade 24 by the rotation of the rotor 10. Therefore, the wings 24 are sufficiently held by the columns 23 only with the pins 48.

[0044] In the initial use of the operation crusher, placing a relatively large number of spacers 73 on a bracket 71, the anvil 18 allowed to positioned uppermost position. The rotor 10 is first rotated at a high speed in the forward direction by the drive of the drive motor. Raw materials are supplied from the supply port 2 through the guide chutes 7 and 8 to the rotor 10.
Dropped on top. The dropped ore is distributed to any one of the three discharge paths 44 by the distribution plate 22, accelerated by the wings 24, and discharged toward the anvil 18 by centrifugal force. The rough is crushed by collision with the anvil 18 and discharged from the lower opening of the lower casing 1a.

The crushing process causes the anvil 18 to wear. In the early stage of use of the crusher, the anvil 18 is located at the highest position, so that abrasion occurs at the lower portion of the anvil 18. When the abrasion becomes equal to or more than a predetermined amount, the hydraulic cylinders 72 are operated to raise the support frame 60 once, and the appropriate number of spacers 73 are removed. Then, the support frame 60 is lowered, and the remaining spacers 7
Support 3 As the wear progresses in this manner, the spacers 73 are removed by appropriate numbers, and the support frame 6 is removed.
0 is sequentially lowered to cause the anvil 18 to be worn over the entire height.

Further, the distribution plate 2 is formed by the crushing process.
2. The discharge liner 25 and the blades 24 are also worn. In particular, the wings 24 wear in the lower half of the wing plates 41a and 41b. Wear mainly occurs on one of the blades 41a during normal rotation of the rotor 10. Therefore, when the wear of one blade 41a becomes equal to or more than a predetermined amount, the rotor 10 is rotated in the reverse direction, and the other blade 41b is subjected to wear.

When the wear of the other wing plate 41b becomes equal to or more than a predetermined amount, the pin 48 is pulled out, the wing 24 is detached from the column 23, and the wing 24 is turned upside down and attached to the column 23 again. Then, the rotor 10 is rotated forward and then reversely, and one of the blades 41 is rotated.
The other half is subjected to wear in the order of a and the other blade 41b. In this way, it is possible to subject the entire wing 24 to wear. The operation is extremely simple because the wings 24 can be removed by pulling out the pins 48. Wing 24
The exchange of itself is the same and can be easily performed.

The discharge path liner 25 is also subjected to wear in the order of one tapered surface and then the other tapered surface 39 due to the forward and reverse rotation of the rotor 10. Replacing the discharge liner 25 is as simple as pulling out the pin 48 and removing the wing 24. The distribution plate 22 is also easily replaced because the blades 24 are removed and held between the blades 24 and the rotor body 21 like the discharge liner 25.

In the above-described embodiment, the anvil is worn while the support frame 60 is lowered from the raised position. However, the support frame 60 may be raised from the lowered position.

Second Embodiment of Housing FIG. 12 shows a second embodiment of the housing. In the above embodiment, the upper housing 1b is connected to the lower housing 1a.
Is opened and closed by the lever 5. In this embodiment, not only the upper housing 1b but also the lid 1c
To open and close. The lid 1c is detachably fixed to the upper housing 1b by a stopper 79 that swings around a shaft 79a.

A large number of guide plates 80 extending in the radial direction of the rotor 10 are attached to the lower surface of the lid 1c at intervals so as to form an annular shape as a whole. At the time of crushing the raw material stone, a high-speed rotation of the rotor 10 generates a pressurized air flow. This air flow is a circulating flow that rises from the periphery of the rotor 10 and goes down through the ribs 8a and the guide chute 8.

This air flow tends to become turbulent when transitioning from an ascending flow to a descending flow, and the turbulence in the air flow causes a loss of crushing energy and adversely affects crushing. In this embodiment, the guide plate 80 prevents turbulence in the air flow, so that energy-efficient crushing is performed. As a result, the guide plate 80
Although the crushed debris adheres to the guide plate 8c, the lid 1c itself can be opened and closed.
0 can be easily cleaned.

Second Embodiment of Rotor FIG. 13 shows a second embodiment of the rotor 10. In the above embodiment, the ends of the wing plates 41a and 41b of the wing 24 are open. On the other hand, in this embodiment, the wing 84 is connected between the ends of the wing plates 41 a and 41 b by a curved portion 85. Therefore, the wing 84 has a cylindrical shape as a whole.

A horizontal hole 86 aligned with the horizontal holes 46 and 47 is also provided in the curved portion 85, and the pin 48 is inserted into the horizontal hole 86 through the horizontal holes 46 and 47. The blades are usually manufactured by performing a heat treatment through a casting process. However, by closing the blades 41a and 41b like the blade 84, the blades 41a and 41b are prevented from being distorted in the manufacturing process. it can.

Third Embodiment of Rotor FIGS. 14 to 16 show a third embodiment of the rotor 10. FIG. In this embodiment, the column 23 is formed integrally with the rotor body 21. The notch 45 of the distribution plate 22 is engaged with the inner peripheral end of the discharge path liner 25. Further, the wing 94 is provided with a pair of independent wing plates 95a, 95b.
Consists of Grooves 96 extending in the vertical direction are formed on both sides of the support body 23 along the radial direction of the rotor main body 21, and these vertical grooves 96 extend to the upper surface of the support body 23. The groove 96 may be formed in the horizontal direction. However, by forming the groove 96 in the vertical direction, the wing plates 95a and 95b can be attached to the column so as to be dropped from above as described later.

On the other hand, projections 97 extending in the vertical direction are formed on the side surfaces of the wing plates 95a and 95b facing the columns 23, and these projections 97 can be fitted into the vertical grooves 96. Protrusions 98, 99 extending in the radial direction of the rotor body 21 are formed on the upper and lower surfaces of the blades 95a, 95b. The wing plates 95a and 95b are held on the support 23 by a top plate 100 coated on the support 23.

The top plate 100 is provided with a hanging portion 101 at the radially inner end of the rotor body 21. The hanging portion 101 has a tapered surface 102 on the outer upper side, and
Can be engaged with the radially inner end face of the rotor main body 21 at. The top plate 100 also has hanging portions 103, 103 on the lower surfaces of both ends along the radial direction of the rotor body 21.
Are provided, and the wing plates 95a,
The protrusion 98 of the 95b can be engaged.

On the lower surface of the central portion of the top plate 100, a step portion 104 is provided.
And a hanging plate 105. The step portion 104 can be engaged with a step portion 106 provided on the upper surface of the column 23. The hanging plate 105 can be received in a concave portion 107 provided on the upper surface of the column 23. On the support 23,
A dovetail groove 108 is formed at the radially outer end of the rotor body 21 so as to be continuous with the recess 107 and extend in the vertical direction. An end liner 109 can be engaged with the dovetail groove 108.

The wing plates 95a and 95b are dropped from above the column 23 so that the projection 97 is fitted into the vertical groove 96. At this time, holes 114 are provided in the wing plates 95a and 95b for hooking hanging members (not shown). Wing plate 9
In a state where 5a and 95b are arranged on both side surfaces of the support 23,
The ridge 99 below the wing plates 95a and 95b is
5 and the discharge liner 25
a, 95b and the rotor body 21.

After the end liner 109 is present and inserted into the groove 108, the column 23 is covered with the top plate 100. In this state, the step portion 104 of the top plate 100 is engaged with the step portion 106 of the column 23, and the hanging plate 105 is received in the recess 107. Further, the hanging portion 103 of the top plate 100 is a wing plate 95a, 9
5b engages with the ridge 98 at the top. In this manner, the wing plates 95a and 95b are held by the support 23.

The hanging portions 101 of the top plate 100, the support columns 23, and the hanging plate 105 of the top plate 100 have holes 11 aligned with each other.
0, 111, and 112 are provided.
3 is inserted, and the top plate 100 is held by the column 23. According to this embodiment, the blades 95a, 95b
It is even more subject to wear over the entire surface than the one embodiment wing.

Assuming that the blades 95a are mainly worn in the crushing step by the forward rotation of the rotor 10, the worn portions are radially outer portions of the blades 95a and lower portions. This portion is the area indicated by in FIG. When the area is worn, the wing plate 95a is mounted upside down on the column 23. Then, wear occurs in the area.

When the wear occurs in the area, the mounting positions of the blades 95a and 95b are reversed. Then, the blades 95a are worn in the region due to the reversal of the rotor 10, first in the region and then in the region upside down. This is the same for the vane plate 95b, except that the forward and reverse rotations of the rotor 10 are different.

The ore discharged from the discharge passage 44 may be repelled by the anvil 18 and collide with the rotor 10. The strut 23 is used to collide the repelled rough.
The end liner 109 is detachably attached to the end liner 109. A hole 115 is provided in the end liner 109 for hooking a hanger (not shown) when the end liner 109 is attached or detached. The end liner 109 is provided at a central position between the two discharge paths 44, where the probability of collision is high, and its end surface protrudes slightly outside the outer peripheral surface of the liner.

The above embodiments are merely examples, and the present invention can be variously modified. For example, although the hydraulic cylinder 72 is shown as a means for raising and lowering the support frame 60, the invention is not limited thereto, and a combination of a rack and a pinion may be used.
Further, the height position adjusting means may be a combination of a positioning bolt and a stopper provided on the support bracket 71 so as to be movable in the axial direction of the vertical rotation shaft 11, a multi-stage cylinder or a known mechanical positioning means.

Although the number of wings is three, the number of wings is not limited. Further, the shape of the wing is not limited to the embodiment.

Further, the rotor structure according to the present invention is not limited to a vertical impact type crusher having an anvil as a collision surface, but forms a dead stock by rocks crushed on the outer periphery of the rotor and covers the dead stock. The present invention can also be applied to a vertical crusher having a collision surface.

[0068]

According to the present invention, the blades are subjected to wear over the entire surface thereof, so that the number of times of replacement of the blades can be reduced and the running cost can be reduced. Changing the wings is also very easy.

[Brief description of the drawings]

FIG. 1 is a plan view showing a vertical impact type crusher of the present invention.

FIG. 2 is a plan view of the inside of a housing.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a sectional view taken along line BB of FIG. 2;

FIG. 5 is a horizontal sectional view of the anvil.

FIG. 6 is a horizontal cross-sectional view showing an attached state of an anvil.

FIG. 7 is a vertical cross-sectional view showing an attached state of an anvil.

FIG. 8 is a plan view of the rotor, with the wings and columns shown in cross section.

FIG. 9 is a sectional view taken along line CC of FIG. 8;

FIG. 10 is a sectional view taken along the line DD in FIG. 9;

FIG. 11 is an oblique projection view showing components of the rotor in an exploded manner.

FIG. 12 is a sectional view showing another embodiment of the housing.

FIG. 13 is a partially broken plan view of another embodiment of the rotor, with the wings and struts shown in cross section.

FIG. 14 is a plan view of yet another embodiment of a rotor with wings and struts shown in cross section.

FIG. 15 is a sectional view taken along the line DD of FIG. 14;

FIG. 16 is a view taken along line EE in FIG. 14;

FIG. 17 is a diagram for explaining the order of wear of the blades.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Rotor 11 ... Vertical rotation axis 21 ... Rotor main body 22 ... Distribution plate 23 ... Prop 24 ... Wing 25 ... Discharge path liner 48 ... Pin

Continuation of the front page (56) References JP-A-58-24358 (JP, A) JP-A-3-188949 (JP, A) JP-A 1-137742 (JP, U) JP-A 1-179742 (JP) U.S. Pat. No. 3,767,127 (US, A) U.S. Pat. No. 3,652,023 (US, A) U.S. Pat. No. 4,096,733 (US, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B02C 13 / 00-13 / 31

Claims (3)

(57) [Claims] 1. A housing, a vertical rotation shaft provided in the housing and rotated at a high speed, and a centrifugal force applied to a crushed object provided in the housing and provided at an upper end of the vertical rotation shaft. A vertical impact type crusher comprising: a rotor disposed on an outer periphery; and a rotor that discharges toward a collision surface; a driving unit configured to rotate the vertical rotation shaft forward and reverse; and a rotor fixed to the vertical rotation shaft. A main body, a substantially disk-shaped distribution plate disposed at the center of the upper surface of the rotor main body, and a plurality of columns erected at equal angular intervals on the outer periphery of the distribution plate on the upper surface of the rotor main body. A wing disposed on the strut so as to cover at least two side surfaces of each of the struts substantially along a radial direction of the rotor body; and a retainer for detachably holding the wing to the strut. Means and adjacent to each other A discharge path formed between the wings, a discharge path liner disposed in the discharge path, the wing, a base portion of the wing covering the radially inner end surface of the support, A pair of blades extending radially outward and covering the two side surfaces of the support, wherein the holding means of the wing is provided with a horizontal hole aligned with the base and the support of the wing, respectively; And a pin inserted into the horizontal hole. 2. A housing, a vertical rotation shaft provided in the housing and rotated at a high speed, and a centrifugal force applied to the crushed object provided in the upper end of the vertical rotation shaft and introduced into the housing. A vertical impact type crusher comprising: a rotor disposed on an outer periphery; and a rotor that discharges toward a collision surface; a driving unit configured to rotate the vertical rotation shaft forward and reverse; and a rotor fixed to the vertical rotation shaft. A main body, a substantially disk-shaped distribution plate disposed at the center of the upper surface of the rotor main body, and a plurality of columns erected at equal angular intervals on the outer periphery of the distribution plate on the upper surface of the rotor main body. A wing disposed on the strut so as to cover at least two side surfaces of each of the struts substantially along a radial direction of the rotor body; and a retainer for detachably holding the wing to the strut. Means and adjacent to each other A discharge path formed between the wings, a discharge path liner arranged in the discharge path, the wings cover the radially inner end surface of the column, the base of the wing, and from both ends of the base. A pair of blades extending outward in the radial direction and covering the both side surfaces of the column; and a curved portion that connects between the tips of the blades and covers the radially outer end surface of the column. Wherein the holding means comprises a horizontal hole provided in alignment with the base and the support of the wing, respectively, and a pin inserted into the horizontal hole. 3. A housing, a vertical rotation shaft provided in the housing and rotated at a high speed, and a centrifugal force applied to a crushed object provided in an upper end of the vertical rotation shaft and introduced into the housing. A vertical impact type crusher comprising: a rotor disposed on an outer periphery; and a rotor that discharges toward a collision surface; a driving unit configured to rotate the vertical rotation shaft forward and reverse; and a rotor fixed to the vertical rotation shaft. A main body, a substantially disk-shaped distribution plate disposed at the center of the upper surface of the rotor main body, and a plurality of columns erected at equal angular intervals on the outer periphery of the distribution plate on the upper surface of the rotor main body. A wing disposed on the strut so as to cover at least two side surfaces of each of the struts substantially along a radial direction of the rotor body; and a retainer for detachably holding the wing to the strut. Means and adjacent to each other A discharge path formed between the wings; a discharge path liner arranged in the discharge path; and a pair of blades, wherein the wings cover the both side surfaces of the column independently of each other. Holding means, grooves formed on the both side surfaces of the column, protrusions formed on the surface of each blade facing the column, engaging with the grooves, and formed on the upper surface of each blade; A ridge extending in the radial direction, a top plate arranged to cover an upper surface of the column, and formed on lower surfaces of both ends along the radial direction of the top plate, the ridges being associated with the ridges of the wing plates. A rotor for a vertical impact crusher, comprising: