JPH0768190A - Crusher of large-sized natural broken stone lump - Google Patents

Abstract

PURPOSE:To form plural extremely large-sized natural broken stone lumps from a rocky mountain with a construction explosive and further to crush the lump into plural natural broken stone lumps of appropriate size. CONSTITUTION:A fixed jaw main body 2 is formed at the lower part of the case 1 of a crusher, and a movable jaw main body 3 is provided to open and close the upper part of the fixed jaw main body 2. A longitudinal cracking large blade 5 of half bead shape extending from the tip of the movable jaw main body 3 toward the fixed jaw main body 2 is furnished. The movable jaw main body 3 and large blade 5 have the length and diameter large enough to clamp an extremely large natural broken stone lump.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is to produce a plurality of extremely large natural crushed stone lumps from a rock mountain by a construction blast, and further crush the maximum natural crushed stone lumps into natural crushed stone lumps of appropriate size. The present invention relates to a large-sized natural crushed stone crusher.

[0002]

2. Description of the Related Art Conventionally, at a quarrying site, a plurality of holes are bored on a rock surface of a rock mountain for burying explosives such as dynamite, and the explosives such as dynamite are buried in the holes to explode the rocks. Crushing to produce a large number of maximum natural crushed stone lumps Wb, Wb, ..., Further crushing each of the maximum natural crushed stone lumps Wb, and crushing with a crushing machine of a normal size, a natural crushed stone lump W of an appropriate size. , W, and so on.

[0003]

The maximum natural crushed stone mass W
b is a plurality of appropriately sized crushed natural stones W, W, ...
In order to be able to crush this with a crusher of a normal size, a super-large crusher for crushing the maximum natural crushed stone lump Wb is necessary, but this kind of crusher still exists. Absent.

Therefore, the appearance of a large crusher for crushing the maximum natural crushed stone lump Wb is desired.

[0005]

Therefore, as a result of intensive studies by the inventor to solve the above-mentioned problems, the present invention forms a fixed jaw main body under the outer casing of the crusher, and A movable jaw body that opens and closes is provided, and a half-division board ball-shaped vertical large blade is provided in the direction of the fixed jaw body from the tip of the movable jaw body, and the maximum natural crushed stone block is sandwiched between the movable jaw body and the vertical large blade. By using a large-sized natural crushed stone lump crusher that is as long and large as possible, it is possible to significantly improve the efficiency in the crushing work of the maximum natural crushed stone lump, and to crush extremely safely It was done.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will now be described with reference to the drawings. A large-sized natural crushed stone crusher A of the present invention has a crusher outer casing 1 and a fixed jaw body as shown in FIGS. 2 and movable jaw body 3. First, the crusher outer casing 1
Specifically, is formed in a housing shape, the inside is formed in a hollow shape, and the opening 1a is provided at the front side position thereof.

The fixed jaw body 2 is integrally provided on the crusher outer casing 1 so as to project outward at the lower end of the opening 1a side. As shown in FIG. 1, the fixed jaw body 2 is formed to be long forward, and specifically, the fixed jaw body 2 is located in front of the movable jaw body 3 with the movable jaw body 3 closed on the fixed jaw body 2. It has a length that protrudes into. In addition, there is an embodiment in which, when the movable jaw body 3 is closed on the fixed jaw body 2, the tips of the fixed jaw body 2 and the movable jaw body 3 are substantially aligned with each other.

As described above, by making the fixed jaw body 2 project forward more than the movable jaw body 3, the maximum natural crushed stone block Wb can be appropriately moved at the tip of the fixed jaw body 2. It can be done efficiently. The movable jaw body 3 is for opening and closing on the fixed jaw body 2 at the opening 1a of the shredder casing 1, and the movable jaw body 3 has an extremely large angle from the fixed jaw body 2. It is opened, and specifically, the maximum natural crushed stone lump Wb can be sufficiently held.

Here, the maximum natural crushed stone lump Wb is formed by blasting a rocky mountain with a blasting material such as dynamite to break the rock surface.
At that time, it refers to a large crushed stone lump, which has a maximum diameter of about 1.5 meters.

As described above, the movable jaw main body 3 is wide open on the fixed jaw main body 2 and has a large diameter,
The maximum natural crushed stone mass Wb can be sandwiched between the fixed jaw body 2 and the movable jaw body 3 to be crushed at once. The movable jaw main body 3 is rotatably supported by the crusher outer casing 1 so as to be openable and closable, and the pivotal support portion with the crusher outer casing 1 is a pivot support base 4.
As shown in FIGS. 1 and 2 and the like, a half-divided abacus bead-shaped vertically-divided large blade 5 is provided at the tip of the blade.

The length dimension from the position of the blade tip of the vertical split large blade 5 to the crushing work surface 3a of the movable jaw body 3 (the surface of the movable jaw body 3 facing the fixed jaw body 2) is formed to be long. ,
It is preferable that the blade is formed to be significantly longer than the conventional type large vertical split blade.

The protruding length (height) of the large vertical blade 5 from the blade tip is specifically, when the movable jaw main body 3 is closed toward the fixed jaw main body 2 and the maximum natural crushed stone lump Wb is crushed. The maximum natural crushed stone lump Wb is cracked inside so that it can be bitten into a plurality of natural crushed stone lumps W, W, ...

Further, the crushing work surface 3a of the movable jaw body 3
However, as shown in FIG. 4, before reaching the surface of the maximum natural crushed stone mass Wb, the maximum natural crushed stone mass Wb is already crushed so as to become a natural crushed stone mass W, W, ... Is.

The blade portion 5a of the vertically divided large blade 5 is formed in a wedge shape. Specifically, the blade portion 5a is formed so that its cross-sectional area gradually increases as it approaches the crushing work surface 3a of the movable jaw body 3. (See FIG. 6). Vertical blade 5
When viewed from the front, the blade portion 5a of the blade has a wedge shape, and the maximum natural crushed stone lump W in the width direction of the vertically dividing large blade 5 is formed.
It is possible to divide b into approximately two.

As an example of another shape of the above-mentioned vertical split large blade 5, there is also one having a substantially conical shape with a sharp tip as shown in FIG. Further, there is an example in which the vertical dividing large blade 5 is formed in a pyramid shape, and in any of the examples, the cross-sectional area is gradually increased as it approaches the crushing work surface 3a.

Actually, the maximum natural crushed stone lump Wb has cracks vertically and horizontally inside due to the impact generated by the explosives, and the large vertical cutting blade 5 cuts into a depth slightly below the surface. Only by doing so, the number of cracks inside the maximum natural crushed stone lump Wb is further increased, and the crushed stone can be extremely easily crushed.

Next, along the longitudinal direction of the movable jaw body 3, a flat chevron-shaped concave surface d is formed on the side of the crushing work surface 3a in a flat chevron shape.
There are embodiments in which n is formed (see FIG. 1). Here, the longitudinal direction of the movable jaw body 3 is a direction connecting the pivotal base 4 of the movable jaw body 3 with the shredder outer casing 1 and the tip of the movable jaw body 3, and The left and right directions.

The vertical dividing large blade 5 is constructed so as to be attachable to and detachable from the movable jaw body 3, and there are various examples of attaching and detaching means. As a concrete example of the attaching / detaching means,
A connecting portion 5b is formed on the opposite side of the blade portion 5a of the large vertical split blade 5, and the connecting portion 5b is connected to a connected portion 3b formed at the tip of the movable jaw body 3. There is.

First, the connecting portion 5b is shown in FIGS.
As shown in (b), it is in the shape of a truncated cone, and one connected portion 3b is formed as a conical through hole, and the connecting portion 5b can be inserted.

The through-hole-shaped connected portion 3b includes
The fixing through hole 3b ₁ which is orthogonal to this is connected to the connecting portion 5b
Fixing through-hole 5b ₁ orthogonal to the axial direction are formed respectively, as shown in FIG. 6 (b), the connecting portion 5b is inserted into the connecting portion 3b, FIG. 5, in FIGS. 6 (a) As shown, the stopper pin p has fixing through holes 3b ₁ and 5b ₁
It has a structure in which the vertically dividing large blade 5 is fixed to the movable jaw main body 3 by penetrating through the.

Further, as another example of the connecting portion 5b of silos larger blades 5, outer screw 5b ₂ is formed above the connecting portion 5b, connecting portion 5b is the formation of the outer screw 5b ₂ It is inserted into the through-hole-shaped connected portion 3b, and its outer screw 5b ₂
The fastener 5b ₃ such as a nut that can be screwed into
There is also an example in which the large vertical blade 5 is fixed to the movable jaw body 3 (see FIG. 7).

There is also an embodiment in which the vertical dividing large blade 5 is formed integrally with the movable jaw main body 3, although not shown.

In the embodiment in which the flat chevron-shaped concave surface dn is formed on the movable jaw body 3, the large natural crushed stone lump W placed on the fixed jaw body 2 is crushed by the movable jaw body 3 as shown in FIG. As shown, by maximizing the stroke until the crushing work surface 3a (close to the crusher outer casing 1) of the movable jaw body 3 comes into contact with the maximum natural crushed stone lump Wb surface, only the vertically dividing large blade 5 has the maximum. It is possible to dig deep into the natural crushed stone mass Wb.

With the above-mentioned structure, even if the maximum natural crushed stone lump Wb is inserted to the inner side of the fixed jaw body 2 (the location where the crusher outer casing 1 is attached), the large vertical cutting blade 5 causes the maximum natural crushed stone lump. W
Since the crushing work surface 3a side of the movable jaw body 3 does not hit the maximum natural crushed stone mass Wb before reaching the b, the crushing work surface 3a hits the surface of the maximum natural crushed stone mass Wb, and the large vertical split blade 5 is provided. This is to prevent an inconvenient state in which the maximum natural crushed stone lump Wb cannot be easily inserted.

Next, on the fixed jaw body 2 side, a flat receiving surface dn
Large of maximum natural crushed stone mass Wb ₂ is placed on the fixed jaw body 2
As shown in FIG. 9, when the movable jaw body 3 is crushed, the crushing work receiving surface 2a (close to the crusher outer casing 1) of the fixed jaw body 2 holds the maximum natural crushed stone mass Wb while stabilizing it. It was made possible.

Next, the large vertical blade 5 of the movable jaw body 3 is used when the movable jaw body 3 is about to close on the fixed jaw body 2.
There is also an embodiment in which the vertical division large blade 5 is always oriented toward the center of gravity Wg of the maximum crushed natural stone Wb.

In the structure of the above embodiment, when the flat receiving surface dn ₂ of the fixed jaw body 2 receives the maximum natural crushed stone mass Wb,
The direction in which the vertical large blade 5 of the movable jaw body 3 moves on the top of the maximum crushed natural stone Wb is toward the center of gravity Wg of the maximum crushed natural stone Wb. In this embodiment, as long as the flat receiving surface dn ₂ is formed on the fixed jaw body 2 side, the fixed jaw body 2 need not be particularly long in the longitudinal direction (see FIG. 10).

Next, the fixed jaw body 2 is provided with a crushed stone block fixing blade portion 7. Specifically, the crushed stone block fixing blade portion 7 is composed of a plurality of fixed blades 7a, 7a ,. A plurality of fixed blades 7a, 7a, ... Are formed in two rows along the longitudinal direction of the jaw body 2.

Here, the longitudinal direction of the fixed jaw main body 2 is a direction connecting the base of the crusher outer casing 1 and the tip of the fixed jaw main body 2, and is the left-right direction of the fixed jaw main body 2 shown in FIG. .

The fixed jaw body 2 has two rows of fixed blades arranged in the longitudinal direction along the lengthwise direction. The fixed blades 7a, 7a ,. The contact portion of the maximum natural crushed stone mass Wb with the fixed jaw body 2 can be properly accommodated in between, and the maximum natural crushed stone mass W
This is to prevent the maximum natural crushed stone block Wb from slipping forward, backward, leftward and rightward when crushing b by the large vertical blade 5 on the movable jaw body 3 side.

There is also an embodiment in which a removable auxiliary body B is mounted on the fixed jaw body 2, and when crushing the maximum natural crushed stone lump Wb, the auxiliary jaw B and the movable jaw body 3 are crushed. The maximum natural crushed stone lump Wb is sandwiched between them, the movable jaw body 3 is closed on the auxiliary body B, and the maximum natural crushed stone lump Wb is crushed.

The auxiliary body B is composed of a working portion 8 and a mounting portion 9. There are various embodiments of the working portion 8 and the mounting portion 9. The first embodiment is shown in FIG. As shown in FIG. 14, a mounting portion 9 is integrally formed on the back surface side of the flat working portion 8, and the mounting portion 9 is formed as a dovetail 9a.

Further, the fixed jaw body 2 is formed with an attached portion 10, which is formed as a dovetail groove 10a. As shown in FIG. The tenon 9a is configured to be locked in the dovetail groove 10a. The dovetail 9a is locked in the dovetail groove 10a so that the end portion of the auxiliary body B is shown in FIG.
As shown in FIG. 4 (b), it is fixed by a fixing tool such as a bolt or fixed by welding means.

Further, there is an embodiment in which the auxiliary body B is provided with the crushed stone mass fixing blade portion 7, as shown in FIGS.
, The fixed blades 7a, 7 forming the crushed stone block fixing blade 7 on the surfaces of the working portions 8, 8, ...
are formed.

Next, the fluid pressure cylinder 12 for moving the movable jaw body 3 is of a so-called clevis type in which the cylinder rotation base 12b is provided at the axial end of the cylinder body 12a. A cylinder rotation base portion 12b is provided at an upper end portion of the crusher outer casing 1. The cylinder barrel 12a of the fluid pressure cylinder 12 has a cylinder rotation base 12b.
The center of the crusher can be vertically swung in the crusher outer casing 1.

The tip of the piston rod 12c of the fluid pressure cylinder 12 is axially supported by the tip of the movable jaw body 3, and the piston rod 12c expands and contracts from the cylinder barrel 12a when hydraulic oil flows in and out of the fluid pressure cylinder 12. Then, the movable jaw body 3 is operated to open and close the fixed jaw body 2 about the pivot base 4 (see FIG. 1).

The pivotal base 4 of the movable jaw body 3 exists in the shredder casing 1 as described above, and the movable jaw body 3
The pivot point of the crusher outer casing 1 is referred to as a pivot portion P _3, and the pivot point of the fluid pressure cylinder 12 to the crusher outer casing 1 is referred to as a cylinder pivot portion Ps.

By the way, the cylinder output (Q), and pivot portion P ₃ of the movable jaw body 3, the distance from the pivot portion P ₃ of the movable Doago body 3 and the intersection Pc perpendicular to the output direction of the cylinder output Q (X), the crushing force due to the cylinder output Q is (F), and the distance from the pivotal support P ₃ to the large vertical split blade 5 is (Y), the crushing force F is expressed by the following equation. F = Q × X ÷ Y

The distance X is variable depending on the opened / closed state of the movable jaw body 3, and the distance X is maximum when the movable jaw body 3 is opened to the maximum and the distance X is minimized when the movable jaw body 3 is closed. (See Figure 11).

The large-sized natural crushed stone crusher A of the present invention uses the fluid pressure cylinder 12 of the type (so-called clevis type) in which the cylinder rotation base 12b is provided at the axial end of the cylinder cylinder 12a as described above. is doing.

On the other hand, there is also an embodiment using a trunnion type fluid pressure cylinder 12o having an intermediate cylinder rotating base 12bo as shown in the phantom line portion of FIG.

When the clevis type fluid pressure cylinder 12 is used and when the trunnion type fluid pressure cylinder 12o (see the phantom line in FIG. 11) is used, the initial crushing when the piston rod 12c starts to move. There is no big difference in power.

That is, since the maximum natural crushed stone lump Wb has already been cracked in the vertical and horizontal directions, when the maximum natural crushed stone lump Wb is crushed, the blade portion 5a of the large vertical split blade 5 slightly bites, so that it naturally becomes. It will be broken.

Therefore, when carrying out the crushing work by sandwiching the maximal natural crushed stone mass Wb between the movable jaw main body 3 and the fixed jaw main body 2, the blade portion 5a of the large vertically divided blade 5 provided on the movable jaw main body 3 The initial crushing force F at the time of the first biting has a great influence, and the piston rod 12c extends thereafter and presses the movable jaw body 3 toward the fixed jaw body 2 does not require so much force. .

Here, the clevis type fluid pressure cylinder 12
When used as a movable movable jaw body 3 includes a pivot portion P ₃ of the movable jaw body 3, the distance between the intersection Pc perpendicular from該枢branch P ₃ and the output direction of the cylinder output Q and X To do.

Further, the trunnion type fluid pressure cylinder 12o
When used as a movable movable jaw body 3 includes a pivot portion P ₃ of the movable jaw body 3, the distance between the intersection Pco perpendicular to the output direction of the cylinder output Q from該枢branch P ₃ X
o.

The distance X and the distance Xo may be substantially equal when the piston rod 12c is substantially entirely housed in the cylinder cylinder 12a and when the piston rod 12c begins to come out of the cylinder cylinder 12a. it can.

Therefore, the clevis type fluid pressure cylinder 12
As described above, the crushing force F of the cylinder rotation base portion 12b of F is Q = Q × X ÷ Y, whereas the cylinder rotation base portion 12bo of the trunnion type fluid pressure cylinder 12o.
Similarly, the crushing force Fo at is Fo = Q × Xo ÷ Y. That is, since the positions of the cylinder pivot portion Ps of the clevis type fluid pressure cylinder 12 and the cylinder pivot portion Pso of the trunnion type fluid pressure cylinder 12o are different, the direction of the cylinder output Q is slightly different, but in the initial stage. It can be seen that they are almost in the same direction.

Therefore, as described above, the distance X and the distance Xo
And are almost equivalent, that is, F ≈ Fo (Fig. 1
1).

The large natural crushed stone crusher A of the present invention is mounted on the tip of the work boom b of the construction vehicle M and operated by a worker from the operator's cab r. In the work of crushing the maximum natural crushed stone lump Wb, first, a rock mountain that can be crushed is blasted with a blast material such as dynamite, and a large number of maximum natural crushed stone lumps Wb, Wb, ... Are piled up.

A large number of massive natural crushed stones Wb, Wb, ..., And, using the fixed jaw body 2 of the large natural crushed stone crusher A, etc. Scrape out one maximum natural crushed stone lump Wb, or pile up a large number of large crushed natural crushed stones Wb, W
Take out one by one from b ,.

Then, as shown in FIG. 17, the movable jaw body 3 is moved to the fixed jaw body 2 side with the maximum natural crushed stone mass Wb sandwiched between the fixed jaw body 2 and the movable jaw body 3. Then, the vertical large blade 5 provided on the movable jaw body 3 bites into the maximum natural crushed stone lump Wb, crushes the maximum natural crushed stone lump Wb, and as shown in FIG.
W.

[0053]

According to the first aspect of the present invention, the fixed jaw main body 2 is formed in the lower part of the crusher casing 1, and the movable jaw main body 3 for opening and closing the fixed jaw main body 2 is provided. A half-divided ball-shaped vertical large blade 5 is installed in the fixed jaw body 2 direction,
The movable jaw body 3 and the large vertical blade 5 are the largest natural crushed stone blocks W
By using a large-sized natural crushed stone lump crusher that is long and has a large diameter so that b can be sandwiched, first, the crushing work of the maximum natural crushed stone lump Wb can be crushed in a single operation. Then, secondly, various effects such as the crushed state of the maximum natural crushed stone lump Wb can be made extremely excellent are exhibited.

To explain the above effect in detail, the crushing work surface 3a of the movable jaw body 3 from the top of the half-divided ball-shaped vertical large blade 5 provided in the fixed jaw body 2 direction from the tip of the movable jaw body 3.
The length up to the side is formed to be large when the fixed jaw body 2 and the movable jaw body 3 are opened, so that the fixed jaw body 2 and the movable jaw body 3 can be opened and closed. When crushing the maximal natural crushed stone mass Wb, the crushing work surface 3a of the movable jaw body 3 does not contact the maximal natural crushed stone mass Wb, and the large vertical cutting blade 5 provided at the tip of the movable jaw main body 3 causes the maximal naturalness first. Even if it is the maximum natural crushed stone lump Wb that bites into the crushed stone lump Wb, the maximum natural crushed stone lump Wb can be reliably crushed by opening and closing the movable jaw body 3 almost once.

Therefore, a plurality of maximum natural crushed stone lumps Wb generated when the rocks are crushed by the blasting material can be held at one time, and the vertical cutting large blade 5 bites into the maximum natural crushed stone lumps Wb so that the maximum crushed natural crushed stone lumps Wb are approximately two. More than one natural crushed stone mass W, W, ...

Next, in the present invention, the large vertical severing blade 5 is a large natural crushed stone crusher which is detachable from the tip of the movable jaw body 3, so that the vertical slicing large blade 5 can be used for a long time. Even if the blade 5 gradually wears and becomes in a poor use state, it can be replaced, and repair or the like can be made extremely simple.

Next, in the third aspect, the vertical large blade 5 is a large natural crushed stone crushing machine formed in a substantially wedge shape, so that the crushing work of the maximum natural crushed stone lump Wb can be performed extremely well. It can be carried out. That is, the vertical split large blade 5
Since it is formed in a substantially wedge shape, when the maximum natural crushed stone lump Wb is crushed, the wedge-shaped double-edged surface separates both sides of the bite into the maximum natural crushed stone lump Wb as the vertical dividing large blade 5 bites into it. To improve the crushing efficiency.

Next, in claim 4, the surface of the movable jaw body 3 facing the fixed jaw body 2 is crushing work surface 3a.
Then, the maximum natural crushed stone lump Wb is obtained by using the large-sized natural crushed stone crusher in which a flat mountain-shaped concave surface dn having a flat concave shape is formed inward along the longitudinal direction of the crushing work surface 3a.
It is possible to perform a reliable crushing work even if the chin enters the inside of the fixed jaw body 2 and the movable jaw body 3.

Explaining the above effect in detail, the maximum natural crushed stone mass W
When b is located on the back side with the fixed jaw body 2 and the movable jaw body 3, the crushing work surface 3a of the movable jaw body 3 must be vertically divided on the surface of the maximum natural crushed stone mass Wb when the movable jaw body 3 is closed. It tends to come into contact before the large blade 5. However, by forming the flat chevron concave surface dn on the crushing work surface 3a of the movable jaw body 3 in the longitudinal direction, the crushing work surface 3a of the movable jaw body 3 is recessed into a substantially flat shape along the longitudinal direction. Is.

Therefore, in the case of the flat mountain-shaped concave surface dn, the crushing work surface 3a is more uniform than the uniform flat shape.
Crushing work surface 3a side of movable jaw body 3 and maximum natural crushed stone lump Wb
Since the distance between and can be made large, and the tip of the large vertical split blade 5 projects long, the maximum natural crushed stone mass W
Even when b is held deep inside the fixed jaw main body 2 and the movable jaw main body 3, the vertically split large blade 5 causes the flat jaw-shaped concave surface d of the movable jaw main body 3.
It is possible to abut and bite before n, and the crushing work surface 3a of the movable jaw body 3 can surely crush the maximum natural crushed stone mass Wb without contacting the maximum natural crushed stone mass Wb.

In the fifth aspect, the surface of the fixed jaw body 2 facing the movable jaw body 3 is a crushing work receiving surface 2a, and the crushing work receiving surface 2a extends inwardly in the longitudinal direction. By using a large-sized natural crushed stone crusher having a flat recessed flat receiving surface dn ₂ , the maximum natural crushed stone lump W
b can be placed on the fixed jaw body 2 in an extremely stable state. That is, the crushing work receiving surface 2a of the fixed jaw body 2
Since the flat receiving surface dn ₂ in the shape of a flat recess is formed inward along the longitudinal direction of the, when the maximum natural crushed stone lump Wb is gripped, it is placed on the flat receiving surface dn _2. Thus, even when the fixed jaw main body 2 is supported in an extremely stable state and is crushed by the large vertical split blade 5 of the movable jaw main body 3, it can be prevented from becoming unstable.

In the sixth aspect, the fixed jaw body 2 is formed in the lower part of the crusher outer casing 1, the movable jaw body 3 for opening and closing the fixed jaw body 2 is provided, and the fixed jaw is provided from the tip of the movable jaw body 3. A half-division board bead-shaped vertical large blade 5 is provided in the direction of the main body 2, and the movable jaw main body 3 and the vertical large blade 5 are maximum natural crushed stone blocks Wb.
A large natural crushed stone crusher in which the vertically dividing large blade 5 of the movable jaw main body 3 is capable of approaching toward the center of gravity of the maximum natural crushed stone lump Wb placed on the fixed jaw main body 2. By doing so, the maximum natural crushed stone lump Wb can be crushed into the natural crushed stone lumps W having substantially the same size. That is, the large vertical blade 5 is always the largest crushed natural stone Wb
Since it is possible to approach toward the position of the center of gravity, the large vertical cutting blade 5 starts to crush from the substantially central position of the maximum natural crushed stone mass Wb, and the natural crushed stone mass W, W generated by the crushing
Will be approximately the same mass.

In the seventh aspect of the present invention, the crushing machine outer casing 1 has a fixed jaw body 2 formed in a lower portion thereof, and a cylinder rotating base 12b of a fluid pressure cylinder 12 having a cylinder rotating base 12b at an axial end thereof. It is mounted in the outer casing 1, the tip of the piston rod 12c of the fluid pressure cylinder 12 is pivotally supported on the tip of the movable jaw body 3, and the fixed jaw body 2 is provided so as to be openable and closable. A vertical division large blade 5 in the shape of a half-division board is provided in two directions, and the movable jaw body 3 and the vertical division large blade 5 are provided.
By using a large-sized natural crushed stone crusher having a large diameter and a large diameter so that the maximum natural crushed stone lump Wb can be sandwiched, the mounting structure of the fluid pressure cylinder 12 can be made extremely simple.

The above effect will be described in detail. The fluid pressure cylinder 1
When 2 is a clevis type and a trunnion type, the crushing force in the initial stage of the crushing work of the maximum natural crushed stone lump Wb is substantially the same in both types. That is, as shown in FIG. 11, the cylinder rotation base 12 of the fluid pressure cylinder 12 is
The crushing force F at b is F = Q × X ÷ Y, and the cylinder rotation base portion 12b of the trunnion type fluid pressure cylinder 12o.
The crushing force Fo at o is similarly Fo = Q × Xo ÷ Y. Since the distance X and the distance Xo are substantially equal as described above, the crushing forces of both types are substantially equal in F and Fo.

Therefore, regardless of whether the fluid pressure cylinder 12 is the clevis type or the trunnion type, substantially the same performance can be obtained, and the clevis type fluid pressure cylinder 12 that can be simply constructed is used. Is something that can be done. Moreover, the crushing force by the fluid pressure cylinder 12 can be made extremely strong.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a large-sized natural crushed stone crusher of the present invention.

FIG. 2 is a perspective view of a large-sized natural crushed stone crusher of the present invention.

FIG. 3 is a schematic diagram showing a state in which a large natural crushed stone crusher of the present invention is about to crush a maximum natural crushed stone lump.

FIG. 4 is a schematic view of a moment when the maximum natural crushed stone crusher is crushed by the large-sized natural crushed stone crusher of the present invention.

FIG. 5 is a perspective view with a partial cross section showing a state in which a large vertical blade is attached to a movable jaw body.

FIG. 6 (a) is a vertical sectional front view showing a state in which a large vertical blade is attached to the movable jaw body, and FIG. 6 (b) is a vertical sectional front view showing a state in which the large vertical blade is removed from the movable jaw body.

FIG. 7 is a vertical cross-sectional front view showing a state in which a large vertical blade is attached to a movable jaw body in another embodiment.

FIG. 8 is a perspective view showing another embodiment of the vertical split large blade.

FIG. 9 is a schematic view showing a state in which a large vertical blade moves toward a center of gravity of a maximum natural crushed stone block.

FIG. 10 is a schematic view showing a state in which a large vertical blade moves toward a center of gravity of a maximum crushed natural crushed stone in another embodiment.

FIG. 11 is a schematic view showing an operating state of a fluid pressure cylinder.

FIG. 12 is a perspective view of an embodiment in which an auxiliary body is provided on the fixed jaw body.

FIG. 13 is a perspective view of a main part showing a mounting structure of a fixed jaw body and an auxiliary body.

FIG. 14 (a) is an enlarged vertical sectional front view of an essential part of the auxiliary body, and FIG. 14 (b) is an enlarged longitudinal side view of an essential part of the auxiliary body.

FIG. 15 is a perspective view of another embodiment of the auxiliary body.

FIG. 16 is a perspective view of a main part of another embodiment of the auxiliary body.

FIG. 17 is a schematic view showing a state in which a maximum natural crushed stone mass is held according to the present invention.

FIG. 18 is a schematic view showing a state in which a maximum natural crushed stone block is crushed according to the present invention.

[Explanation of symbols]

1 ... Crusher outer casing 2 ... Fixed jaw body 2a ... Crushing work receiving surface 3 ... Movable jaw body 3a ... Crushing work surface 5 ... Vertical split large blade dn ... Flat chevron concave surface dn ₂ ... Flat receiving surface 12 ... Fluid pressure cylinder 12a ... Piston 12b ... Cylinder rotation base 12c ... Piston rod Wb ... Maximum natural crushed stone block

Front page continuation (72) Inventor Isamu Nagayoshi, 314 Chikusacho, Hanamigawa-ku, Chiba City, Sakado Works Co., Ltd. (72) Inventor, Tadhiko Nagase, 314, Chikusacho, Hanamigawa-ku, Chiba City, Inc. (72) Invention Hiroo Koyanagi, 314 Chikusacho, Hanamigawa-ku, Chiba City, Sakado Works Co., Ltd. (72) Inventor, Yuji Nagasawa, 314, Chikusacho, Hanamigawa-ku, Chiba City, Inc. Address: Sakado Factory (72) Inventor Masayuki Otsuka, 314 Chikusacho, Hanamigawa-ku, Chiba City, Sakado Factory, Inc. (72) Inventor, Takamitsu Ito, 314, Chikusacho, Hanamigawa-ku, Chiba City, Sakado Factory (72) Invention Yoichiro Kuwahara, 314 Chikusacho, Hanamigawa-ku, Chiba City, Sakado Factory Co., Ltd. (72) Masayuki Asai, 314, Chikusacho, Hanamigawa-ku, Chiba City, Sakado Factory Co., Ltd. Blue Town Oaza Imamurashinden 738 th place 1 (72) inventor Hiroshi Kaburaki Saitama Prefecture Ageo Koshikiya 845-1 west Ageo first Dan place 1-27-401

Claims (7)

[Claims] 1. A fixed jaw main body is formed in a lower portion of the crusher outer casing, and a movable jaw main body for opening and closing the fixed jaw main body is provided. A large-sized natural crushed stone crusher characterized by having a large vertical crushed blade, and the movable jaw main body and the vertical crushed large blade are long and have a large diameter so that a maximum natural crushed stone lump can be sandwiched. 2. The large-sized natural crushed stone crusher according to claim 1, wherein the large vertical cutting blade is detachable from the tip of the movable jaw body. 3. The large vertical cutting blade according to claim 1,
A large natural crushed stone crusher characterized by being formed in a substantially wedge shape. 4. The movable jaw main body according to claim 1, wherein a surface facing the fixed jaw main body serves as a crushing work surface, and a flat recessed flat surface is formed inward along the longitudinal direction of the crushing work surface. A large-sized natural crushed stone crusher characterized by forming a mountain-shaped concave surface. 5. The fixed jaw main body according to claim 1, wherein a surface facing the movable jaw main body serves as a crushing work receiving surface, and a flat concave shape is formed inward along the longitudinal direction of the crushing work receiving surface. A large-sized natural crushed stone crusher characterized by forming a flat receiving surface. 6. A fixed jaw main body is formed in the lower part of the crusher outer casing, and a movable jaw main body for opening and closing the fixed jaw main body is provided. A vertically dividing large blade is provided so that the movable jaw body and the vertically dividing large blade can sandwich a maximum natural crushed stone block, and the vertically dividing large blade of the movable jaw body is a maximum natural crushed stone placed on the fixed jaw body. A large-sized natural crushed stone crusher that can be approached toward the center of gravity of the lump. 7. A cylinder rotating base of a fluid pressure cylinder having a fixed jaw main body formed at a lower portion of the crusher casing and having a cylinder rotating base at an axial end thereof is mounted in the crusher casing, and the fluid The piston rod tip of the pressure cylinder is pivotally supported on the tip part of the movable jaw body, the fixed jaw body is provided so as to be openable and closable, and a half-divided ball-shaped vertical blade is provided from the tip of the movable jaw body toward the fixed jaw body. A large-sized natural crushed stone crusher characterized in that the movable jaw body and the large-scale vertical blade have a large diameter and a large diameter so that a maximum natural crushed stone lump can be sandwiched.