WO2019117182A1

WO2019117182A1 - Crusher

Info

Publication number: WO2019117182A1
Application number: PCT/JP2018/045614
Authority: WO
Inventors: 浩二塚田; 拓也羽金
Original assignee: 古河産機システムズ株式会社
Priority date: 2017-12-15
Filing date: 2018-12-12
Publication date: 2019-06-20
Also published as: JP2023029651A; JP2023029650A; JP7253497B2; JPWO2019117182A1; JP7438416B2

Abstract

One among a concave (100) and a mantle (500) is movable along a vertical direction (Z direction) relative to the other among the concave (100) and the mantle (500). The upper end (UE1) of a first crushing surface (102) on the concave (100) is at a higher position than the upper end (UE2) of a second crushing surface (502) on the mantle (500). The distance (ΔH), in the vertical direction (Z direction), from the upper end (UE2) of the second crushing surface (502) on the mantle (500) to the upper end (UE1) of the first crushing surface (102) on the concave (100) is at least 40% (ΔH/H ≥ 0.40) of the distance (H) from the lower end (LE1) to the upper end (UE1) of the first crushing surface (102) on the concave (100).

Description

Crushing machine

The present invention relates to a crusher.

Crushers are sometimes used to break up raw materials, such as rocks. As described in Patent Document 1, the crusher includes a mantle core, a mantle and a concave. The mantle is attached to the mantle core. The raw material input to the crusher is crushed in the space (crushing chamber) between the mantle and the concave.

JP 2012-240014 A

(First aspect)
Concaves and mantles wear with the use of crushers. When the concave and the mantle are worn, the concave and the mantle are brought close to each other, for example, by moving the concave downward to maintain the space between the concave and the mantle. However, the inventors have found that bringing the concave and mantle closer together may reduce the maximum size of the material (eg, rock) that can be fractured by the concave and mantle.

The object of the first aspect of the present invention is to maintain the largest size of the material that can be crushed by concave and mantle at a large size over the long term use of the crusher.

(Second aspect)
The crushing of the raw material exerts a great force on the mantle. This force may cause the mantle to come off the mantle core.

An object of the second aspect of the present invention is to firmly fix the mantle to the mantle core.

(Third aspect)
The concave may be held by lifting the projection provided on the concave by a lift (for example, a U-bolt). The inventor studied to simplify the structure of the crusher having such a lift portion.

An object of the third aspect of the present invention is to simplify the structure of a crusher.

Further objects of the present invention will become apparent from the following disclosure of the embodiments.

According to a first aspect of the invention,
Concave having a first crushing surface,
A mantle having a second crush surface, the second crush surface being positioned to face the first crush surface of the concave;
Equipped with
One of the concave and the mantle is movable along the vertical direction with respect to the concave and the other of the mantle,
The upper end of the first crushing surface of the concave is located higher than the upper end of the second crushing surface of the mantle;
In the vertical direction, the distance from the upper end of the second crushing surface of the mantle to the upper end of the first crushing surface of the concave is 40% or more of the distance from the lower end to the upper end of the first crushing surface of the concave A crusher is provided.

According to a second aspect of the invention,
A mantle core having a first inclined surface inclined with respect to the vertical direction;
A mantle having a second inclined surface inclined with respect to the vertical direction, the second inclined surface being positioned to face the first inclined surface of the mantle core;
Equipped with
The mantle core intersects the upper end of the first inclined surface and intersects the first surface of the mantle core and a first surface having a gentler inclination than the first inclined surface with respect to the vertical direction. And a second surface having a steeper inclination than the first surface of the mantle core with respect to the vertical direction,
The mantle intersects the upper end of the second inclined surface and has a first surface having a gentler inclination than the second inclined surface with respect to the vertical direction, and intersects the first surface of the mantle and the vertical And a second surface having a steeper inclination than the first surface of the mantle with respect to a direction,
The first surface of the mantle core and the first surface of the mantle being opposite each other;
The crusher in which the second surface of the mantle core and the second surface of the mantle face each other is provided.

According to a third aspect of the invention,
With the spindle
A concave located around the spindle;
A protrusion protruding from the concave;
A lift which is movable along the vertical direction and which can lift the first part of the protrusions upward;
Equipped with
In the cross section along the vertical direction, the concave is at a first end in one direction orthogonal to the vertical direction and on the opposite side of the first end in the one direction from the first end And a second end located high,
In the one direction, the center of the first portion of the protrusion is offset from the center between the first end and the second end toward the second end,
There is provided a crusher in which the first portion of the protrusion in the vertical direction is higher than the upper end of the main shaft.

According to the first aspect of the present invention, the maximum size of the material that can be crushed by the concave and the mantle can be maintained at a large size over the long-term use of the crusher.

According to the second aspect of the present invention, the mantle can be firmly fixed to the mantle core.

According to the third aspect of the present invention, the structure of the crusher can be simplified.

The objects described above, and other objects, features and advantages will become more apparent from the preferred embodiments described below and the following drawings associated therewith.

It is a sectional view showing a crusher concerning an embodiment. It is a figure for demonstrating the detail of the crusher shown in FIG. It is the figure which expanded a part of FIG. It is the figure which looked at the lift part and accommodating part which were shown in FIG. 3 from the inner side of a crusher. It is the figure which looked at the accommodating part and holding part which were shown in FIG. 3 from upper direction. It is a figure for demonstrating the detail of the crusher shown in FIG. It is a figure for demonstrating an example in which the 1st crushing surface of a concave and the 2nd crushing surface of a mantle were worn away. It is a figure for demonstrating the largest size of the raw material which can be crushed by a concave and a mantle. It is a figure for demonstrating the detail of the crusher shown in FIG. It is the figure which expanded the mantle core, mantle, and main axis | shaft shown in FIG. It is a top view of the concave shown to FIGS. 1-8. It is a front view of the concave shown in FIG. It is a side view of the concave shown in FIG. It is a bottom view of the concave shown in FIG. It is AA sectional drawing of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same components are denoted by the same reference numerals, and the description thereof will be appropriately omitted.

FIG. 1 is a cross-sectional view showing a crusher 10 according to the embodiment.

The crusher 10 includes a concave 100, a moving unit 200, a frame 300, a mantle core 400, a mantle 500, a main shaft 600, an eccentric shaft 700, and a hopper 800.

The concave 100 and the mantle 500 are opposed to each other, and define a space (crushing chamber) between the concave 100 and the mantle 500. In the crushing chamber between the concave 100 and the mantle 500, the raw material (for example, rock) input from the hopper 800 is crushed by the concave 100 and the mantle 500.

The concave 100 is attached to the moving unit 200. The moving unit 200 is movable along the vertical direction (the Z direction in FIG. 1) with respect to the frame 300. Therefore, as the moving unit 200 moves, the concave 100 can move along the vertical direction (the Z direction in FIG. 1).

The mantle 500 is attached to the mantle core 400. The mantle core 400 is attached to the main shaft 600. The main shaft 600 is supported by an eccentric shaft 700 so as to be inclined from the vertical direction (the Z direction in FIG. 1). The mantle 500 and the mantle core 400 can be precessed by the rotation of the main shaft 600 and the drive of the eccentric shaft 700.

FIG. 2 is a view for explaining the details of the crusher 10 shown in FIG.

The crusher 10 will be described with reference to FIG. The crusher 10 includes a concave 100, a protrusion 110, a lift 120 and a main shaft 600. The concave 100 is located around the main shaft 600. The protrusion 110 protrudes from the concave 100. The lift unit 120 is movable along the vertical direction (the Z direction in FIG. 2). The lift portion 120 can lift the first portion 112 of the protrusion 110 upward. In a cross section along the vertical direction (for example, the cross section shown in FIG. 2), the concave 100 has a first end SE1 and a second end SE2. The first end SE1 is an end in one direction (X direction in FIG. 2) orthogonal to the vertical direction. The second end SE2 is on the opposite side of the first end SE1 in the one direction (X direction in FIG. 2) and is higher than the first end SE1. In the one direction (the X direction in FIG. 2), the center of the first portion 112 of the protrusion 110 is from the center C between the first end SE1 and the second end SE2 toward the second end SE2. It deviates by a distance Δ (Δ> 0). In the vertical direction (the Z direction in FIG. 2), the first portion 112 of the protrusion 110 is at a position higher than the upper end of the main shaft 600.

According to the configuration described above, the structure of the crusher 10 can be simplified. Specifically, in the configuration described above, the center of the first portion 112 of the protrusion 110 is the center C between the first end SE1 and the second end SE2 in one direction (the X direction in FIG. 2). The first portion 112 of the protrusion 110 is positioned higher than the upper end of the main shaft 600 in the vertical direction (the Z direction in FIG. 2). In such a structure, by providing the protrusion 110 at a high position, a space for moving the protrusion 110 toward the second end SE2 of the concave 100 in one direction (the X direction in FIG. 2) described above. Can be secured. By moving the protrusion 110 toward the second end SE2 of the concave 100, the region between the lift portion 120 and the concave 100 is narrowed in the lateral direction (the X direction in FIG. 2). There is no need to provide a complicated structure (for example, an area where the concave 100 and the moving unit 200 contact each other). Therefore, the structure of the crusher 10 can be simplified.

The crusher 10 will be further described with reference to FIG.

The concave 100 is inclined at a large angle from the horizontal direction (X direction in FIG. 2) in the vicinity of the second end SE2, and stands substantially vertically. Therefore, in the vicinity of the second end SE2, the protrusion 110 and the lift 120 are easily brought close to the second end SE2 of the concave 100.

The concave 100 has a contact surface 104a (in FIG. 2, the area where the contact surface 104a is located is indicated by hatching). The contact surface 104 a is in contact with the moving unit 200. In the example shown in FIG. 2, in one direction (X direction in FIG. 2), the contact surface 104a is directed from the center C of the first end SE1 and the second end SE2 of the concave 100 to the first end SE1. It is off. As is clear from the description of the present embodiment, the area in which the contact surface 104a is located is not limited to the example shown in FIG.

The concave 100 does not have a contact surface (a surface in contact with the moving unit 200) above the protrusion 110. According to the example shown in FIG. 2, the protrusion 110 can be close to the second end SE2 of the concave 100. That is, the protrusion 110 can be provided at a high position of the concave 100. Therefore, the concave 100 can be held without providing the contact surface above the protrusion 110.

The first end SE1 and the second end SE2 of the concave 100 are separated by a first distance W in one direction (X direction in FIG. 2).

In one example, the distance Δ can be equal to or less than 0.25 times the first distance W (Δ ≦ 0.25 W). According to this example, the concave 100 can be stably held. If the distance Δ is large to some extent (for example, if the distance Δ is more than 0.25 times the first distance W), the resistance (downward force) the contact surface 104a receives from the moving portion 200 and the first portion 112 The torque due to the force received by the lift portion 120 (force directed upward) makes it easier for the concave 100 to rotate. On the other hand, when the distance Δ is suppressed to a certain extent, the rotation of the concave 100 due to the torque can be suppressed, and the concave 100 can be stably held.

The distance Δ may be equal to or less than 0.10 times the first distance W. In this case, the concave 100 can be held more stably, and a sufficiently large space for providing the protrusion 110 and the lift 120 can be secured.

FIG. 3 is an enlarged view of a part of FIG. FIG. 4 is a view of the lift portion 120 and the storage portion 210 shown in FIG. 3 as viewed from the inside of the crusher 10. FIG. 5 is a top view of the housing portion 210 and the holding portion 220 shown in FIG.

The housing portion 210 defines a space 210a. At least a portion of the protrusion 110 can be inserted into the space 210a. As shown in FIG. 4, the housing portion 210 has a first upper surface 211, a first side surface 212, a second upper surface 213 and a second side surface 214. The first side surface 212 intersects the first upper surface 211. The second side surface 214 intersects the second upper surface 213. The first side surface 212 and the second side surface 214 face each other across the space 210a.

In the example shown in FIGS. 3 and 4, the lift portion 120 is a U-bolt. As shown in FIG. 4, the lift portion 120 includes a first portion 122, a second portion 124 and a third portion 126. The first portion 122 passes below the first portion 112 of the protrusion 110. The second portion 124 passes from the first portion 122 to one side of the protrusion 110. The third portion 126 passes from the first portion 122 to the opposite side of the protrusion 110. As apparent from the description of the present embodiment, the lift portion 120 may be a member different from the U-bolt.

The holding portion 220 has a first member 222. The first member 222 is located above the protrusion 110. As shown in FIG. 4, the first member 222 spans the space 210 a from the first upper surface 211 to the second upper surface 213 of the housing portion 210. Therefore, the first member 222 of the holding portion 220 can be stably installed in the housing portion 210.

The second portion 124 and the third portion 126 of the lift portion 120 are attached to the first member 222 of the holding portion 220 so as to be movable along the vertical direction (the Z direction in FIGS. 3 and 4). Therefore, the protrusion 110 can be lifted upward by the lift portion 120. In the example shown in FIG. 3 and FIG. 4, the lift portion 120 can be moved by a nut provided above the first member 222 of the holding portion 220.

The holder 220 has a second member 224. The second member 224 protrudes from the first member 222. As shown in FIG. 5, the second member 224 is located between the first side surface 212 and the second side surface 214 of the housing portion 210. When the holding unit 220 moves toward the first side surface 212 or the second side surface 214 by the movement of the concave 100, in particular, rotation, the second member 224 of the holding unit 220 contacts the first side surface 212 or the second side surface 214. Therefore, movement, in particular rotation, of the concave 100 can be prevented.

According to the example shown in FIGS. 3 to 5, at least a part of the protrusion 110 can be accommodated in the space 210 a of the accommodation unit 210 and the protrusion 110 can be accommodated by the holding unit 220 with a simple structure. It can be stably fixed to 210.

FIG. 6 is a view for explaining the details of the crusher 10 shown in FIG.

The crusher 10 will be described with reference to FIG. The crusher 10 includes a concave 100 and a mantle 500. The concave 100 has a first crushing surface 102. The mantle 500 has a second fracture surface 502. The mantle 500 is positioned such that the second fracture surface 502 faces the first fracture surface 102 of the concave 100. One of the concave 100 and the mantle 500 is movable along the vertical direction (the Z direction in FIG. 6) with respect to the concave 100 and the other of the mantle 500. The upper end UE1 of the first fracture surface 102 of the concave 100 is located higher than the upper end UE2 of the second fracture surface 502 of the mantle 500. The distance ΔH from the upper end UE2 of the second fracture surface 502 of the mantle 500 to the upper end UE1 of the first fracture surface 102 of the concave 100 in the vertical direction (the Z direction in FIG. 6) is the same as that of the first fracture surface 102 of the concave 100. The distance H is 40% or more of the distance H from the lower end LE1 to the upper end UE1 (ΔH / H00.40).

According to the configuration described above, the maximum size of the material that can be crushed by the concave 100 and the mantle 500 can be maintained at a large size over the long-term use of the crusher 10. As described later with reference to FIG. 8, the maximum size of the raw material that can be crushed by the concave 100 and the mantle 500 is approximately as long as the upper end UE1 of the first crushing surface 102 is higher than the upper end UE2 of the second crushing surface 502. It can be kept constant. In the configuration described above, the upper end UE1 of the first crushing surface 102 is at a position considerably higher than the upper end UE2 of the second crushing surface 502 (ΔH / H ≧ 0.40). Therefore, even when the concave 100 and the mantle 500 are brought close to each other (for example, even when the concave 100 is moved downward) when the first crushing surface 102 and the second crushing surface 502 wear, the first crushing surface 102 The upper end UE1 can be positioned higher than the upper end UE2 of the second crushing surface 502 for a long period of time. Accordingly, the maximum size of the material that can be crushed by the concave 100 and the mantle 500 can be maintained at a large size over the long-term use of the crusher 10.

The crusher 10 will be further described using FIG.

The first fracture surface 102 of the concave 100 has a lower end LE1, and the second fracture surface 502 of the mantle 500 has a lower end LE2. The lower end LE1 of the first crushing surface 102 and the lower end LE2 of the second crushing surface 502 are separated by a distance Δ.

The first fractured surface 102 of the concave 100 has an upper end UE1, and the second fractured surface 502 of the mantle 500 has an upper end UE2. The inclination at the upper end UE1 of the first crushing surface 102 is larger than the inclination at the upper end UE2 of the second crushing surface 502 by the angle θ.

In the example shown in FIG. 6, the distance between the concave 100 and the mantle 500 can be adjusted by moving the concave 100 in the vertical direction (the Z direction in FIG. 6). Specifically, the concave 100 is attached to the moving unit 200, and the moving unit 200 can move along the vertical direction (the Z direction in FIG. 6) with respect to the frame 300. Therefore, by moving the moving unit 200 with respect to the frame 300, the concave 100 can be moved in the vertical direction (the Z direction in FIG. 6).

In the example shown in FIG. 6, the protruding portion 110 of the concave 100 is lifted by the lift portion 120 upward in the vertical direction (the Z direction in FIG. 6). The concave 100 is attached to the moving unit 200 by the lift unit 120.

FIG. 7 is a view for explaining an example in which the first fracture surface 102 of the concave 100 and the second fracture surface 502 of the mantle 500 are worn.

In the example shown in FIG. 7, in order to maintain the distance Δ between the concave 100 and the mantle 500, in particular, the distance Δ between the lower end LE1 of the first crushing surface 102 and the lower end LE2 of the second crushing surface 502 constant, The concave 100 is moved downward by the downward movement of the frame 200 with respect to the frame 300. On the other hand, the upper end UE 1 of the first crushing surface 102 is located higher than the upper end UE 2 of the second crushing surface 502. In this case, as described later with reference to FIG. 8, the maximum size of the raw material (for example, the raw material O shown in FIG. 7) that can be crushed by the concave 100 and the mantle 500 is the first crushing surface 102 moved downward. , Can be maintained almost constant.

FIG. 8 is a view for explaining the maximum size of the raw material that can be crushed by the concave 100 and the mantle 500.

In the left view in FIG. 8, the upper end UE 1 of the first crushing surface 102 is located higher than the upper end UE 2 of the second crushing surface 502. In the right side view in FIG. 8, the upper end UE 1 of the first crushing surface 102 is located lower than the upper end UE 2 of the second crushing surface 502. The distance Δ between the concave 100 and the mantle 500, in particular, the distance Δ between the lower end LE1 of the first fracture surface 102 and the lower end LE2 of the second fracture surface 502 is the same in the left view in FIG. 8 and the right view in FIG. It has become. The difference between the inclination at the upper end UE1 of the first crushing surface 102 and the inclination at the upper end UE2 of the second crushing surface 502 (the angle θ in FIGS. 6 and 7) is the left view in FIG. It is the same in the right figure.

In the left view in FIG. 8, the raw material O can be bitten by the upper end UE 1 of the first crushing surface 102 and the upper end UE 2 of the second crushing surface 502. Therefore, the maximum size of the material that can be crushed by the concave 100 and the mantle 500 is large. On the other hand, in the right side view in FIG. 8, the material O can be bitten by a portion of the first crushing surface 102 which is at a position lower than the upper end UE 1 and the second crushing surface 502. . Therefore, the maximum size of the raw material that can be crushed by the concave 100 and the mantle 500 is smaller than that in the left view in FIG.

As apparent from the comparison between the left side view in FIG. 8 and the right side view in FIG. 8, the maximum size of the raw material that can be crushed by the concave 100 and the mantle 500 is the second crushing surface 502 at the upper end UE1 of the first crushing surface 102. As long as it is higher than the upper end UE2, it can be maintained substantially constant.

FIG. 9 is a view for explaining the details of the crusher 10 shown in FIG. FIG. 10 is an enlarged view of the mantle core 400, the mantle 500 and the principal axis 600 shown in FIG.

The crusher 10 will be described with reference to FIG. The crusher 10 includes a mantle core 400 and a mantle 500. The mantle core 400 has a first inclined surface 404. The first inclined surface 404 is inclined with respect to the vertical direction (the Z direction in FIG. 10). The mantle 500 has a second inclined surface 504. The second inclined surface 504 is inclined with respect to the vertical direction (the Z direction in FIG. 10). The mantle 500 is positioned such that the second sloped surface 504 faces the first sloped surface 404 of the mantle core 400. The mantle core 400 has a first surface 404a and a second surface 404b. The first surface 404 a intersects the upper end of the first inclined surface 404 and has a gentler inclination than the first inclined surface 404 with respect to the vertical direction (the Z direction in FIG. 10). The second surface 404b intersects the first surface 404a and has a steeper inclination than the first surface 404a with respect to the vertical direction (the Z direction in FIG. 10). The mantle 500 has a first surface 504a and a second surface 504b. The first surface 504 a intersects the upper end of the second inclined surface 504 and has a gentler inclination than the second inclined surface 504 with respect to the vertical direction (the Z direction in FIG. 10). The second surface 504b intersects the first surface 504a and has a steeper inclination than the first surface 504a with respect to the vertical direction (the Z direction in FIG. 10). The first surface 404 a of the mantle core 400 and the first surface 504 a of the mantle 500 face each other. The second surface 404 b of the mantle core 400 and the second surface 504 b of the mantle 500 face each other.

According to the configuration described above, the mantle 500 can be firmly fixed to the mantle core 400. Specifically, in the configuration described above, a concave corner is formed by the first surface 404 a and the second surface 404 b of the mantle core 400, and the first surface 504 a and the second surface 504 b of the mantle 500. Form a convex corner. Accordingly, when a force is applied to the mantle 500, for example, by crushing the raw material, the convex corner of the mantle 500 enters the concave corner of the mantle core 400. Therefore, the mantle 500 can be firmly fixed to the mantle core 400.

Furthermore, in the example shown in FIG. 10, the mantle core 400 has a third surface 404c, and the mantle 500 has a third surface 504c. The third surface 404c of the mantle core 400 intersects the second surface 404b and has a gentler inclination than the second surface 404b with respect to the vertical direction (the Z direction in FIG. 10). The third surface 504c of the mantle 500 intersects the second surface 504b and has a gentler inclination than the second surface 504b with respect to the vertical direction (the Z direction in FIG. 10). The third surface 404 c of the mantle core 400 and the third surface 504 c of the mantle 500 face each other.

According to the above-described configuration, the upper part of the mantle 500 can be firmly fixed to the mantle core 400 even if a large force is applied to the upper part of the mantle 500, particularly the first component 500a described later . Specifically, in the configuration described above, a convex corner is formed by the second surface 404b and the third surface 404c of the mantle core 400, and the second surface 504b and the third surface of the mantle 500 are formed. A concave corner is formed by 504c. Accordingly, when a force is applied to the top of the mantle 500, the convex corner of the mantle core 400 enters the concave corner of the mantle 500. Therefore, even if a large force is applied to the upper part of the mantle 500, the upper part of the mantle 500 can be firmly fixed to the mantle core 400.

The crusher 10 is further described with reference to FIGS. 9 and 10.

The crusher 10 includes a main shaft 600 and a head 610. The main shaft 600 has an outer surface 602. The head 610 has an inner side 612 and an outer side 614. The head 610 can clamp the main shaft 600 so that the inner side surface 612 faces the outer side surface 602 of the main shaft 600.

The mantle 500 is fixed by a head 610. Specifically, the mantle 500 has a fourth surface 504 d and a fifth surface 504 e. The fourth surface 504d is on the opposite side of the third surface 504c. The fifth surface 504e is between the third surface 504c and the fourth surface 504d. The head 610 has a surface 616. Face 616 points downward. In the example shown in FIG. 10, in the head 610, the surface 616 (first surface) of the head 610 faces the fourth surface 504d of the mantle 500, and the outer surface 614 of the head 610 faces the fifth surface 504e of the mantle 500. The main shaft 600 can be tightened as shown in FIG. Therefore, a force generated by tightening the head 610 on the main shaft 600 acts from the surface 616 of the head 610 toward the fourth surface 504 d of the mantle 500, so that the mantle 500 can be fixed.

In particular, according to the example shown in FIG. 10, the portion of the mantle 500 between the third surface 504 c and the fourth surface 504 d can be introduced into the space between the outer surface 614 and the surface 616 of the head 610. . Thus, the mantle 500 and the head 610 can be arranged in a small space.

The method of fixing the mantle 500 by the head 610 is not limited to the example shown in FIG. In one example, the head 610 is configured such that the surface 618 of the head 610 (first surface: a surface facing the lower end of the inner surface 612 of the head 610 and the lower end of the outer surface 614 of the head 610 and facing downward) The main shaft 600 may be tightenable so as to face the surface 504 d and to cause the outer surface 614 of the head 610 to face the fifth surface 504 e of the mantle 500. In this example, the force generated by tightening the head 610 on the main shaft 600 acts from the surface 618 of the head 610 toward the fourth surface 504 d of the mantle 500 so that the mantle 500 can be fixed.

The mantle 500 has a first part 500a and a second part 500b. The first component 500a has a first surface 504a, a second surface 504b, a third surface 504c, a fourth surface 504d, and a fifth surface 504e. The second surface 504 b is located below the first surface 504 a along the first inclined surface 404 of the mantle core 400. The first part 500a and the second part 500b are separable from each other.

According to the above-described configuration, the portion (the second part 500b) of the mantle 500 that is highly worn can be efficiently replaced. In general, the wear of the mantle 500 is so severe that it goes downward of the mantle 500, and not so strong at the upper end of the mantle 500 and its vicinity (eg, the first part 500a). In the configuration described above, the second part 500 b can be removed from the mantle core 400 while the first part 500 a is attached to the mantle core 400. Therefore, the portion (the second part 500b) of the mantle 500 which is highly worn can be efficiently replaced.

Furthermore, according to the configuration described above, even if the first component 500a and the second component 500b can be separated, detachment of the first component 500a from the mantle core 400 can be suppressed. Specifically, in the configuration described above, the mantle 500 is formed by the first surface 404a, the second surface 404b and the third surface 404c of the mantle core 400 and the first surface 504a, the second surface 504b and the third surface 504c of the mantle 500. It is possible to firmly fix the first part 500a of the first embodiment to the mantle core 400. Therefore, even if a large force is applied to the first component 500a by crushing the raw material, detachment of the first component 500a from the mantle core 400 can be suppressed.

FIG. 11 is a top view of the concave 100 shown in FIGS. 1 to 8. FIG. 12 is a front view of the concave 100 shown in FIG. FIG. 13 is a side view of the concave 100 shown in FIG. FIG. 14 is a bottom view of the concave 100 shown in FIG. FIG. 15 is a cross-sectional view taken along line AA of FIG. The shape of the concave 100 seen from the opposite side to FIG. 12 is the same as the shape of the concave 100 shown in FIG. 12, and the shape of the concave 100 seen from the opposite side to FIG. 13 is shown in FIG. The shape of the concave 100 is the same.

The concave 100 has a tubular shape. As shown in FIG. 15, the concave 100 has a first crushing surface 102 and an outer surface 104. The first crushing surface 102 defines the interior space of the concave 100. The outer surface 104 is opposite to the first crush surface 102.

Concave 100 has a plurality of protrusions 110. Each protrusion 110 protrudes from the outer side surface 104 of the concave 100. As shown in FIG. 11, the plurality of protrusions 110 are substantially equally spaced along the outer surface 104. In particular, in the example shown in FIG. 11, the six protrusions 110 are substantially equally spaced at 60 ° intervals. The number of projecting portions 110 of the concave 100 is not limited to the example shown in FIG. 11 and may be other than six.

Although the embodiments of the present invention have been described above with reference to the drawings, these are merely examples of the present invention, and various configurations other than the above can also be adopted.

This application corresponds to Japanese Patent Application No. 2017-240296 filed on Dec. 15, 2017, Japanese Patent Application No. 2017-240297 filed on Dec. 15, 2017, and Dec. 15, 2017 Priority is claimed on the basis of Japanese Patent Application No. 2017-240298, which is incorporated herein by reference in its entirety.

Claims

Concave having a first crushing surface,
A mantle having a second crush surface, the second crush surface being positioned to face the first crush surface of the concave;
Equipped with
One of the concave and the mantle is movable along the vertical direction with respect to the concave and the other of the mantle,
The upper end of the first crushing surface of the concave is located higher than the upper end of the second crushing surface of the mantle;
In the vertical direction, the distance from the upper end of the second crushing surface of the mantle to the upper end of the first crushing surface of the concave is 40% or more of the distance from the lower end to the upper end of the first crushing surface of the concave Is a crusher.
In the crusher according to claim 1,
A protrusion protruding from the concave;
A lift which is movable along the vertical direction and which can lift the projection upward;
Crusher equipped with.
A mantle core having a first inclined surface inclined with respect to the vertical direction;
A mantle having a second inclined surface inclined with respect to the vertical direction, the second inclined surface being positioned to face the first inclined surface of the mantle core;
Equipped with
The mantle core intersects the upper end of the first inclined surface and intersects the first surface of the mantle core and a first surface having a gentler inclination than the first inclined surface with respect to the vertical direction. And a second surface having a steeper inclination than the first surface of the mantle core with respect to the vertical direction,
The mantle intersects the upper end of the second inclined surface and has a first surface having a gentler inclination than the second inclined surface with respect to the vertical direction, and intersects the first surface of the mantle and the vertical And a second surface having a steeper inclination than the first surface of the mantle with respect to a direction,
The first surface of the mantle core and the first surface of the mantle being opposite each other;
The crusher in which the second surface of the mantle core and the second surface of the mantle face each other.
In the crusher according to claim 3,
The mantle core has a third surface that intersects the second surface of the mantle core and has a gentle inclination with respect to the vertical direction than the second surface of the mantle core.
The mantle has a third surface that intersects the second surface of the mantle and has a more gentle inclination than the second surface of the mantle with respect to the vertical direction;
The crusher in which the third surface of the mantle core and the third surface of the mantle face each other.
In the crusher according to claim 4,
A spindle having an outer surface,
A head having an inner side and capable of clamping the spindle such that the inner side faces the outer side of the spindle;
The mantle has a fourth surface opposite the third surface of the mantle;
The head has a first surface facing downwards,
The crusher capable of clamping the main shaft such that the head faces the fourth surface of the mantle with the first surface of the head facing the fourth surface of the mantle.
In the crusher according to claim 5,
The head has an outer surface opposite to the inner surface of the head,
The mantle has a fifth surface between the third surface and the fourth surface,
The crusher capable of tightening the main shaft such that the head faces the fifth surface of the mantle with the outer surface of the head facing the fifth surface of the mantle.
In the crusher according to claim 5 or 6,
The mantle includes a first component having the first surface, the second surface, the third surface, and the fourth surface of the mantle, and a first component along the first inclined surface of the mantle core. And a second part located below,
A crusher in which the first part and the second part are separable from each other.
With the spindle
A concave located around the spindle;
A protrusion protruding from the concave;
A lift which is movable along the vertical direction and which can lift the first part of the protrusions upward;
Equipped with
In the cross section along the vertical direction, the concave is at a first end in one direction orthogonal to the vertical direction and on the opposite side of the first end in the one direction from the first end And a second end located high,
In the one direction, the center of the first portion of the protrusion is offset from the center between the first end and the second end toward the second end,
The crusher in which the first portion of the protrusion is higher than the upper end of the main shaft in the vertical direction.
In the crusher according to claim 8,
The lift portion has a first portion passing under the first portion of the protrusion, a second portion passing from the first portion to one side of the first portion of the protrusion, and the second portion And a third portion passing from one portion through the side opposite the first portion of the projection.
In the crusher according to claim 9,
Equipped with a holding unit,
The holding portion has a first member located above the projecting portion,
The crusher in which the second portion and the third portion of the lift portion are attached to the first member of the holding portion so as to be movable along the vertical direction.
In the crusher according to claim 10,
A housing portion defining a space for inserting at least a part of the projection;
The housing portion has a first upper surface, a first side surface intersecting the first upper surface, a second upper surface, and a second side surface intersecting the second upper surface.
The first side and the second side face each other across the space,
The crusher straddling the space from the first upper surface to the second upper surface of the housing portion.
In the crusher according to claim 11,
The holding portion has a second member protruding from the first member,
The crusher, wherein the second member of the holding portion is located between the first side surface and the second side surface of the housing portion.
The crusher according to any one of claims 8 to 12
The first end and the second end of the concave are separated by a first distance in the one direction,
In the one direction, the center of the first portion of the protrusion is within a distance of 0.25 times the first distance from the center between the first end and the second end. Crushing machine.