JP3129892B2 - Large natural crushed stone crusher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a plurality of extremely large natural crushed stones from a rocky hill using a blasting material for construction, and further crushing the largest natural crushed stone into an appropriately sized natural crushed stone. The present invention relates to a large-sized natural crushed stone crusher.

[0002]

2. Description of the Related Art Conventionally, at a quarry site, a plurality of holes are drilled on a rock surface of a rocky mountain to bury blasting material such as dynamite, and a blasting material such as dynamite is embedded in the hole to blast the rocky mountain. Crushing to produce a large number of maximal natural crushed stone blocks Wb, Wb,..., Further crushing each maximal natural crushed stone block Wb, and crushing with an ordinary-sized crusher, an appropriately sized natural crushed stone block Wb , W, ....

[0003]

The maximum natural crushed stone mass W
b is a plurality of natural crushed stone blocks W, W,.
In order to be able to be crushed by a crusher of a normal size, a very large crusher for crushing the maximum natural crushed stone mass Wb is necessary, but this kind still exists. Absent.

[0004] Therefore, the appearance of a large crusher for crushing the maximum natural crushed stone mass Wb is desired.

[0005]

Therefore, the inventor of the present invention has made intensive studies to solve the above-mentioned problems, and as a result, the present invention provides a fixed jaw body formed at a lower portion of an outer casing of a crusher. A movable jaw body that opens and closes the top is provided, and a half-divided ball-shaped vertically split large blade is provided from the tip of the movable jaw body toward the fixed jaw body,
The movable jaw main body and the vertically-divided large blade are long and large in diameter so as to sandwich a maximum natural crushed stone mass, and the movable jaw main body has a surface facing the fixed jaw main body as a crushing work surface. A large natural crushed stone crusher with a flat concave-shaped concave surface with a flat concave shape formed along the inside of the work surface in the longitudinal direction significantly improves the efficiency of the crushing work of the maximum natural crushed stone mass. In addition, the crushing can be performed extremely safely and the above-mentioned problem has been solved.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, a large natural crushed stone crusher A of the present invention has a crusher outer housing 1, a fixed jaw main body. 2 and a movable jaw main body 3. First, the crusher casing 1
Is specifically formed in a housing shape, the inside is formed in a hollow shape, and an opening 1a is provided at a front position thereof.

The fixed jaw main body 2 is provided integrally with the outer housing 1 of the crusher so as to protrude outward from the lower end of the opening 1a. As shown in FIG. 1, the fixed jaw main body 2 is formed to be long forward, and specifically, the fixed jaw main body 2 is moved forward of the movable jaw main body 3 with the movable jaw main body 3 closed on the fixed jaw main body 2. It is the length that protrudes into. Further, in some embodiments, when the movable jaw main body 3 is closed on the fixed jaw main body 2, the ends of the fixed jaw main body 2 and the movable jaw main body 3 are substantially aligned.

As described above, the fixed jaw main body 2 has a structure protruding forward from the movable jaw main body 3 so that the maximum natural crushed stone mass Wb can be appropriately moved at the tip of the fixed jaw main body 2. And efficient work. The movable jaw main body 3 opens and closes on the fixed jaw main body 2 at the opening 1a of the crusher outer casing 1, and the movable jaw main body 3 has an extremely large angle from the fixed jaw main body 2. It is an object that can be opened, and specifically, can sufficiently hold the maximum natural crushed stone mass Wb.

Here, the maximum natural crushed stone mass Wb means that a rocky mountain is blasted with a blasting substance such as dynamite, and the rock surface collapses.
It refers to the first large crushed stone mass produced at that time, which has a maximum diameter portion of about 1.5 meters.

As described above, since the movable jaw main body 3 is widely opened on the fixed jaw main body 2 to have a large diameter,
The maximum natural crushed stone mass Wb can be crushed at once by sandwiching it between the fixed jaw main body 2 and the movable jaw main body 3. The movable jaw main body 3 is pivotally supported by the crusher outer casing 1 so as to be openable and closable, and a pivot supporting portion with the crusher outer casing 1 is a pivot base 4.
As shown in FIG. 1 and FIG. 2, etc., a vertically divided large blade 5 in the form of a half-shaped abacus ball is provided at the tip end portion.

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

The protruding length (height) of the vertically split large blade 5 from the blade tip is, specifically, when the movable jaw main body 3 is closed in the direction of the fixed jaw main body 2 to crush the maximal natural crushed stone Wb. Cracks are formed inside the maximum natural crushed stone mass Wb, and the natural crushed stone mass Wb can penetrate into a plurality of natural crushed stone masses W, W,.

Further, the crushing work surface 3a of the movable jaw main body 3
However, as shown in FIG. 4, before reaching the surface of the maximum natural crushed stone mass Wb, crushing is performed so that the maximum natural crushed stone mass Wb becomes a natural crushed natural stone mass W, W,. It is.

The blade portion 5a of the vertically split large blade 5 is formed in a wedge shape. Specifically, the blade portion 5a is formed so that the sectional area gradually increases as the movable jaw body 3 approaches the crushing work surface 3a. (See FIG. 6). The vertically split large blade 5
The shape of the blade portion 5a when viewed from the front is a wedge shape, and the maximum natural crushed stone mass W in the width direction of the vertically split large blade 5
b can be roughly divided into two.

As an embodiment of another shape of the above-mentioned vertically divided large blade 5, there is one having a substantially conical shape with a sharp tip as shown in FIG. Further, there is an embodiment in which the vertically split large blade 5 is formed in the shape of a pyramid, and in any of the embodiments, the cross-sectional area is gradually increased as approaching the crushing work surface 3a.

Actually, the maximum natural crushed stone mass Wb is already cracked inside and outside due to the impact generated by the blasting material, and the vertically-divided large blade 5 penetrates to a depth slightly smaller than the surface. By itself, the cracks inside the maximum natural crushed stone mass Wb further increase and can be extremely easily crushed.

Next, a flat mountain-shaped concave surface d which is recessed in a flat mountain shape on the crushing work surface 3a side along the longitudinal direction of the movable jaw main body 3.
There are embodiments where n is formed (see FIG. 1). Here, the longitudinal direction of the movable jaw main body 3 is a direction connecting the pivot base 4 of the movable jaw main body 3 with the outer casing 1 of the crusher and the distal end of the movable jaw main body 3. It means left and right direction.

The vertically split large blade 5 is configured to be detachable from the movable jaw main body 3, and there are various embodiments of the detachable means. Specific examples of the attaching / detaching means include:
A connecting portion 5b is formed on the opposite side of the blade portion 5a of the vertically split large blade 5, and the connecting portion 5b is connected to a connected portion 3b formed at the tip of the movable jaw main body 3. I have.

First, the connecting portion 5b is shown in FIGS.
As shown in FIG. 2B, the connecting portion 3b is formed as a conical through-hole, and the connecting portion 5b is insertable.

The connected portion 3b having a through-hole shape has
Fixing through-hole 3b ₁ is also connected portion 5b perpendicular thereto
Are formed with fixing through-holes 5b ₁ orthogonal to the axial direction, respectively, and as shown in FIG. 6 (b), the connecting portion 5b is inserted into the connected portion 3b, and as shown in FIGS. 5 and 6 (a). as shown, the stopper pin p is through fixation hole 3b ₁ and 5b ₁
And the vertically divided large blade 5 is fixed to the movable jaw main body 3.

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 to-be-connected part 3b having a through-hole shape, and its external thread 5b ₂
And it is tightened fastener 5b _3, such as can be screwed nut,
There is also an embodiment in which the vertically split large blade 5 is fixed to the movable jaw main body 3 (see FIG. 7).

Although not shown, the vertically split large blade 5 is formed integrally with the movable jaw body 3 in some embodiments.

In the embodiment in which the flat concave-shaped concave surface dn is formed in the movable jaw main body 3, when a large natural crushed stone mass W placed on the fixed jaw main body 2 is crushed by the movable jaw main body 3, FIG. As shown, the stroke until the crushing work surface 3a of the movable jaw main body 3 (closer to the crushing machine casing 1) abuts on the surface of the maximum natural crushed stone mass Wb is made as long as possible, so that only the vertically split large blade 5 has the maximum size. It is designed to be able to dig deep into the natural crushed stone mass Wb.

By adopting the above structure, even if the maximum natural crushed stone Wb is inserted into the fixed jaw main body 2 at the deep side (at the base of the crusher outer casing 1), the vertically-divided large blade 5 causes the maximum natural crushed stone crushed mass. W
b, the crushing work surface 3a side of the movable jaw main body 3 does not hit the maximal natural crushed stone mass Wb before the crushing work surface 3a hits the surface of the maximal natural crushed stone mass Wb, and the vertically split large blade 5 It is intended to prevent an inconvenient state in which the maximum natural crushed stone mass Wb cannot be easily inserted.

Next, the flat receiving surface dn is provided on the fixed jaw main body 2 side.
₂ is a large natural crushed stone block Wb placed on the fixed jaw body 2
When crushed by the movable jaw main body 3, as shown in FIG. 9, the crushing work receiving surface 2 a of the fixed jaw main body 2 (closer to the outer housing 1 of the crusher) stably holds the maximum natural crushed stone mass Wb. It is something that can be done.

Next, the vertically split large blade 5 of the movable jaw main body 3 is used when the movable jaw main body 3 is about to close on the fixed jaw main body 2.
There is also an embodiment in which the vertically split large blade 5 is always directed to the position of the center of gravity Wg (including the position of substantially the center of gravity Wg) of the maximum natural crushed stone mass 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 Wb,
The direction in which the vertically split large blade 5 of the movable jaw main body 3 moves on the top of the maximum natural crushed stone mass Wb is toward the position of the center of gravity Wg of the maximum natural crushed stone mass Wb (including the position of the approximate center of gravity Wg). . In this embodiment, a flat receiving surface d is provided on the fixed jaw main body 2 side.
If n ₂ is formed, the fixed jaw main body 2 does not need to be particularly long in the longitudinal direction (see FIG. 10).

Next, the fixed jaw main body 2 is provided with a crushed stone fixing blade 7, and more specifically, the crushed stone fixing blade 7 is composed of a plurality of fixed blades 7a, 7a,. A plurality of fixed blades 7a are formed along the longitudinal direction of the jaw main body 2 in two rows.

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 refers to the horizontal direction of the fixed jaw main body 2 shown in FIG. .

The row between the rows of fixed blades 7a, 7a,... Arranged in two rows along the longitudinal direction on the fixed jaw main body 2 is flat, and the row between the rows is flat. The contact portion between the maximum natural crushed stone Wb and the fixed jaw main body 2 can be properly accommodated therebetween, and the maximum natural crushed stone W
When the b is crushed by the vertically split large blade 5 on the movable jaw main body 3 side, the maximum natural crushed stone block Wb is prevented from sliding back and forth and right and left.

There is also an embodiment in which a detachable auxiliary body B is mounted on the fixed jaw main body 2. When crushing the maximum natural crushed stone mass Wb, the auxiliary jaw B and the movable jaw main body 3 are connected to each other. The movable natural jaw main body 3 is closed on the auxiliary body B, and the maximum natural crushed stone mass Wb is crushed.

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

A mounting portion 10 is formed on the fixed jaw main body 2, and the mounting portion 10 is formed as a dovetail groove 10a. As shown in FIG. The tenon 9a is engaged with the dovetail groove 10a. The dovetail tenon 9a is engaged with the dovetail groove 10a.
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 fixing blade 7 as shown in FIGS. 15 and 16.
, The fixed blades 7a, 7 forming the crushed stone fixing blade 7 on the surfaces of the working parts 8, 8,...
a,... are formed.

Next, the movable hydraulic cylinder 12 of the movable jaw main body 3 is of a so-called clevis type in which a cylinder rotation base 12b is provided at an axial end of a cylinder cylinder 12a. A cylinder rotation base 12b is provided at an upper end portion of the outer casing 1 of the crusher. The cylinder body 12a of the fluid pressure cylinder 12 includes a cylinder rotation base 12b.
The center of the crusher can be swung up and down within the outer housing 1 of the crusher.

The tip of the piston rod 12c of the fluid pressure cylinder 12 is pivotally supported by the tip of the movable jaw body 3, and the piston rod 12c expands and contracts from the cylinder cylinder 12a when hydraulic oil flows into and out of the fluid pressure cylinder 12. Then, the movable jaw body 3 is given an operation of opening and closing the fixed jaw body 2 around the pivot base 4 (see FIG. 1).

The pivot base 4 of the movable jaw main body 3 exists in the outer casing 1 of the crusher as described above.
Pivot支箇plants to crushing outside筺1 of the pivot portion P _3, and shall refer to pivot支箇plants to crushing outside筺first fluid pressure cylinder 12 and the 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), a crushing force by the cylinder output Q (F), further crushing force F and the distance from the pivot portion P ₃ to silo large blade 5 and (Y) is represented by the following formula. F = Q × X ÷ Y

The distance X is variable depending on the open / close state of the movable jaw main body 3. When the movable jaw main body 3 is fully opened, the distance X is maximum, and when the movable jaw main body 3 is closed, the distance X is also minimum. (See FIG. 11).

In the large natural crushed stone crusher A of the present invention, as described above, the hydraulic cylinder 12 of the so-called clevis type having the cylinder turning base 12b provided at the axial end of the cylinder 12a is used. are doing.

On the other hand, there is an embodiment using a trunnion type hydraulic cylinder 12o having an intermediate cylinder rotating base 12bo as shown by the imaginary line in FIG.

In the case where the clevis type hydraulic cylinder 12 is used and the case where the trunnion type hydraulic cylinder 12o (see the phantom line in FIG. 11) are used, the initial crushing when the piston rod 12c starts to move is performed. There is no big difference in power.

That is, since the maximum natural crushed stone Wb already has cracks in the vertical and horizontal directions inside, when the maximum natural crushed stone Wb is crushed, the blade portion 5a of the vertically divided large blade 5 slightly bites into the natural crushed natural stone Wb. It will break.

For this reason, when performing the crushing operation by sandwiching the maximum natural crushed stone mass Wb between the movable jaw main body 3 and the fixed jaw main body 2, the blade portion 5 a of the vertically split large blade 5 provided on the movable jaw main body 3. Initially, the initial crushing force F when biting is greatly affected, and thereafter, the force that the piston rod 12c extends and presses the movable jaw main body 3 toward the fixed jaw main body 2 does not require a large force. .

Here, the clevis type hydraulic 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 I do.

The trunnion type hydraulic 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.

When the piston rod 12c is substantially entirely contained in the cylinder 12a, and when the piston rod 12c starts to protrude from the cylinder 12a, the distance X and the distance Xo may be substantially equal. it can.

Therefore, the clevis type hydraulic cylinder 12
The crushing force F at the cylinder rotation base 12b is F = Q × X ÷ Y, as described above, whereas the crushing force F is equal to the cylinder rotation base 12bo of the trunnion type hydraulic cylinder 12o.
Is similarly Fo = Q × Xo ÷ Y. That is, since the positions of the cylinder pivot Ps of the clevis type hydraulic cylinder 12 and the cylinder pivot Pso of the trunnion type hydraulic cylinder 12o are different, the direction of the cylinder output Q is also slightly different. It can be seen as substantially the same direction.

Therefore, as described above, the distance X and the distance Xo
Are substantially equal to each other, 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 working boom b of the construction vehicle M and operated by an operator from the operator cab r. In the operation of crushing the maximal natural crushed stone block Wb, first, a crushable rock mountain is blasted with an explosive such as dynamite, and a large number of maximal natural crushed stone blocks Wb, Wb,.

The piled up of the large natural crushed stones Wb, Wb,..., Are used to form the pile of the large natural crushed stones Wb by using the fixed jaw body 2 of the large natural crushed stone crusher A. The individual maximum natural crushed stone blocks Wb are scraped out, or a large number of the maximum natural crushed stone blocks Wb, W
b, ... are taken out one by one as appropriate.

Next, as shown in FIG. 17, the movable jaw main body 3 is moved toward the fixed jaw main body 2 with the maximum natural crushed stone mass Wb sandwiched between the fixed jaw main body 2 and the movable jaw main body 3. As shown in FIG. 18, the vertically split large blade 5 provided in the movable jaw main body 3 cuts into the maximum natural crushed stone mass Wb, and crushes the maximum natural crushed stone mass Wb.
W.

[0053]

According to the first aspect of the present invention, a fixed jaw main body 2 is formed at a lower portion of an outer casing 1 of a crusher, and a movable jaw main body 3 for opening and closing the fixed jaw main body 2 is provided. A vertically-divided large blade 5 in the shape of a half-split ball is provided in the direction of the fixed jaw body 2 from the tip, and the movable jaw body 3 and the vertically-divided large blade 5 are large and large enough to sandwich the maximum natural crushed stone Wb. The movable jaw main body 3 has a surface facing the fixed jaw main body 2 as a crushing work surface 3a, and a flat concave-shaped concave surface dn having a flat concave shape along the longitudinal direction of the crushing work surface 3a and inward. By forming a large natural crushed stone crusher made of
First, the crushing operation of the maximum natural crushed stone block Wb can be crushed in substantially one operation, and second, the crushing state of the maximum natural crushed stone block Wb can be made extremely good. It produces various effects.

The above effect will be described in detail. The crushing work surface 3a of the movable jaw main body 3 starts from the top of the half-divided ball-shaped vertically split large blade 5 provided in the direction from the tip of the movable jaw main body 3 to the fixed jaw main body 2.
The fixed jaw main body 2 and the movable jaw main body 3 are formed so as to have a large diameter when the fixed jaw main body 2 and the movable jaw main body 3 are opened. When crushing the maximal natural crushed stone mass Wb, the crushing work surface 3a of the movable jaw main body 3 does not come into contact with the maximal natural crushed stone mass Wb, and the vertically split large blade 5 provided at the distal end of the movable jaw main body 3 first maximizes the maximal natural crushed stone. Even if the maximum natural crushed stone block Wb is cut into the crushed stone block Wb, the maximum natural crushed stone block Wb can be reliably crushed by opening and closing the movable jaw body 3 substantially once.

Therefore, a plurality of maximal natural crushed stones Wb generated when the rocky mountain is crushed by the explosive material can be added at a time, and the vertically-divided large blade 5 cuts into the maximal natural crushed stone mass Wb to substantially reduce the size. One or more natural crushed stone blocks W, W,...

Next, the maximum natural crushed stone mass Wb is
And reliable crushing work can be performed even if it goes into the back of the movable jaw main body 3. To explain the effect in detail, when the maximum natural crushed stone mass Wb is on the back side of the fixed jaw main body 2 and the movable jaw main body 3, when the movable jaw main body 3 is closed, the crushing work surface 3a of the movable jaw main body 3 is inevitable. Tends to abut on the surface of the maximum natural crushed stone Wb before the vertically split large blade 5.

However, by forming the flat ridge-shaped concave surface dn on the crushing work surface 3a in the longitudinal direction of the movable jaw main body 3, the crushing work surface 3a of the movable jaw main body 3 is substantially flattened along the longitudinal direction. It is what becomes. Therefore, in the case of the flat angled concave surface dn, the distance between the crushing work surface 3a side of the movable jaw main body 3 and the maximum natural crushed stone block Wb can be made larger than the shape in which the crushing work surface 3a is uniformly flat. Can be made, and since the tip of the vertically split large blade 5 protrudes long,
Even if the maximum natural crushed stone mass Wb is held deep inside the fixed jaw main body 2 and the movable jaw main body 3, the vertically split large blade 5 can move the movable jaw main body 3.
Of the movable jaw body 3 can be reliably crushed without the crushing work surface 3a of the movable jaw main body 3 abutting on the maximal natural crushed stone mass Wb. .

Next, in the invention of claim 2, a fixed jaw main body 2 is formed at a lower portion of the outer casing 1 of the crusher.
A movable jaw body 3 that opens and closes is provided, and a vertically divided large blade 5 in the form of a half-divided ball is provided in the direction of the fixed jaw body 2 from the tip of the movable jaw body 3. Is large and large enough to sandwich the maximum natural crushed stone mass Wb, the fixed jaw body 2 has a surface facing the movable jaw body 3 as a crushing work receiving surface 2a, and the crushing work receiving surface 2a A flat receiving surface d having a flat concave shape along the longitudinal direction and inward
By having a large natural crushed stone mass crusher by forming a n _2, it can be extremely stable placed on the fixed jaw body 2 in a state of maximum natural crushed stone mass Wb.

That is, since the flat receiving surface dn ₂ having a flat concave shape is formed along the longitudinal direction of the crushing work receiving surface 2 a of the fixed jaw main body 2 and inward, the maximum natural crushed stone mass Wb is held. And is placed on the flat receiving surface dn ₂ , is supported by the fixed jaw main body 2 in an extremely stable state, and is unstable even when crushed by the vertically split large blade 5 of the movable jaw main body 3. It can be done without becoming.

Next, in the invention of claim 3, a fixed jaw main body 2 is formed at a lower portion of the outer casing 1 of the crusher, and the fixed jaw main body 2 is formed.
A movable jaw body 3 that opens and closes is provided, and a vertically divided large blade 5 in the form of a half-divided ball is provided in the direction of the fixed jaw body 2 from the tip of the movable jaw body 3. Makes it possible to sandwich the maximum natural crushed stone mass Wb,
Is a large natural crushed stone crusher that can be approached toward the center of gravity of the maximum natural crushed stone Wb placed on the fixed jaw main body 2, and the maximum natural crushed stone W
b can be crushed into natural crushed stone blocks W, W having substantially the same size.

That is, since the vertically divided large blade 5 can always approach the center of gravity (including the position of the approximate center of gravity) of the maximum natural crushed stone Wb, the vertically divided large blade 5 can be moved to the maximum natural crushed stone W
The crushing starts from the substantially center position of b, and the natural crushed stone blocks W, W generated by the crushing are substantially equivalent blocks.

Next, in a fourth aspect of the present invention, in the third aspect, the cylinder turning base 12b of the fluid pressure cylinder 12 having the cylinder turning base 12b at the axial end is provided in the crusher outer casing 1. A large natural crushed stone crusher, which is mounted and pivotally supports the distal end of the piston rod 12c of the hydraulic cylinder 12 at the distal end of the movable jaw main body 3, makes the mounting structure of the hydraulic cylinder 12 extremely simple. It can be configured.

The above effects will be described in detail.
The crushing force in the initial stage of the crushing operation of the maximal natural crushed stone mass Wb is substantially the same between the two types when the clevis type 2 and the trunnion type 2 are used. That is, as shown in FIG.
b, the crushing force F becomes F = Q × X ÷ Y, and the cylinder rotating base 12b of the trunnion type hydraulic cylinder 12o
Similarly, the crushing force Fo at o is Fo = Q × Xo ÷ Y. As described above, since the distance X and the distance Xo are substantially equal to each other, the crushing force of both types is substantially equal to F and Fo.

Therefore, the hydraulic cylinder 12 of the clevis type or trunnion type can provide substantially the same performance regardless of whether it is a clevis type or a trunnion type. Is what you can do. Moreover, the crushing force of the fluid pressure cylinder 12 can be extremely strong.

[Brief description of the drawings]

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

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

FIG. 3 is a schematic view showing a state in which a large natural crushed stone crusher is about to be crushed by the large natural crushed stone crusher of the present invention.

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

FIG. 5 is a partially sectional perspective view showing a state in which a vertically split large blade is mounted on a movable jaw main body.

FIG. 6A is a longitudinal sectional front view showing a state where a vertically split large blade is attached to a movable jaw main body. FIG. 6B is a longitudinal sectional front view showing a state where the vertically divided large blade is detached from the movable jaw main body.

FIG. 7 is a longitudinal sectional front view showing a state in which a vertically split large blade is mounted on a movable jaw main body in another embodiment.

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

FIG. 9 is a schematic diagram showing a state in which the vertically split large blade moves toward the position of the center of gravity of the maximum natural crushed stone mass.

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

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

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

FIG. 13 is an essential part perspective view showing an attachment structure between a fixed jaw main body and an auxiliary body.

14A is an enlarged longitudinal sectional front view of a main part of an auxiliary body, and FIG. 14B is an enlarged longitudinal sectional side view of a main part of an 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 where a maximum natural crushed stone mass is added according to the present invention.

FIG. 18 is a schematic view showing a state where a maximum natural crushed stone mass is crushed according to the present invention.

[Explanation of symbols]

1 ... crushing outside筺2 ... fixed jaw body 2a ... crushing operation receiving face 3 ... movable jaw body 3a ... crushing operation surface 5 ... silos large blade dn ... flat chevron concave dn ₂ ... flat receiving surface 12 ... hydraulic cylinder 12a ... Piston 12b ... Cylinder rotation base 12c ... Piston rod Wb ... Maximum natural crushed stone

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Isamu Nagayoshi 314 Chikusa-cho, Hanamigawa-ku, Chiba-shi Inside the Sakado Corporation (72) Inventor Tadashi Nagase 314 Chigusa-cho, Hanamigawa-ku, Chiba-shi Sakado Corporation In-house (72) Inventor Hiroo Koyanagi 314 Chigusa-cho, Hanamigawa-ku, Chiba-shi Inside Sakado Works (72) Inventor Yuji Nagasawa 314 Chikusa-cho, Hanamigawa-ku, Chiba-shi Inside Sakado Works, Inc. (72) Inventor Toshiyuki Kuno 314 Chikusa-cho, Hanamigawa-ku, Chiba-shi (72) Inventor Masayuki Otsuka 314 Chikusa-cho, Hanamigawa-ku, Chiba-shi Inside the Sakado Works, Ltd. (72) Takamitsu Ito 314 Chikami-cho, Hanamigawa-ku, Chiba-shi Inside Sakado Works, Ltd. (72) Inventor Yoichiro Kuwahara 314, Chikusa-cho, Hanamigawa-ku, Chiba-shi Inside Sakado Works, Ltd. (72) Akiya Masayuki Asai 314 Chikusa-cho, Hanamigawa-ku, Chiba-shi Inside the Sakado Works (72) Inventor Motai ▲ Hitoshi 738-1, Imamura Nitta, Omecho, Nishikubiki-gun, Niigata Prefecture 1 (72) Inventor Hiroshi Kaburagi Ageo, Saitama 845-1 Nishiageo Daiichi Danchi, 1-25-1, Nishiageo, Ichigo, Japan (56) References JP-A-59-187976 (JP, A) JP-A-5-214819 (JP, A) Ji 58-128258 (JP) , U) Japanese Utility Model 1983-168645 (JP, U) Japanese Utility Model 59-44 (JP, U) Japanese Utility Model 63-133333 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB) (Name) B02C 1/02

Claims (4)

(57) [Claims] 1. A fixed jaw main body is formed at a lower portion of an outer casing of a crusher, and a movable jaw main body is provided to open and close the fixed jaw main body. A vertically divided large blade is provided, and the movable jaw main body and the vertically divided large blade are long and large in diameter so as to be able to sandwich the maximum natural crushed stone mass, and the movable jaw main body has a surface facing the fixed jaw main body.
A crushing work surface, along the longitudinal direction of the crushing work surface, and
A large natural crushed stone crusher characterized by forming a flat concave-shaped concave surface with a flat concave shape inside one . 2. A fixed jaw main body is formed at a lower portion of an outer casing of a crusher, and a movable jaw main body is provided to open and close the fixed jaw main body. A vertically split large blade is provided, and the movable jaw main body and the vertically split large blade are long and large in diameter so as to be able to sandwich a maximum natural crushed stone mass, and the fixed jaw main body has a surface facing the movable jaw main body.
A crushing work receiving surface, along the longitudinal direction of the crushing work receiving surface
A large natural crushed stone crusher characterized by having a flat receiving surface having a flat concave shape inside . 3. A fixed jaw main body is formed at a lower portion of an outer housing of the crusher, and a movable jaw main body is provided to open and close the fixed jaw main body. A vertically split large blade is provided so that the movable jaw body and the vertically split large blade can sandwich a maximum natural crushed stone mass, and the vertically split large blade of the movable jaw body is a maximum natural crushed stone placed on a fixed jaw body. A large natural crushed stone crusher characterized by being accessible toward the center of gravity of the block. 4. The hydraulic cylinder according to claim 3, further comprising: a cylinder rotating base having a cylinder rotating base at an axial end thereof mounted inside the crusher outer casing. A large natural crushed stone crusher characterized by being pivotally supported at the tip of the movable jaw main body.