JP3042944B2 - 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 crushed natural crushed stone mass which can be crushed reliably even with a very large natural crushed stone mass and can be formed into a desired small mass with a minimum number of crushing operations. About the machine.

[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. A large number of natural crushed stone blocks W, W,..., And a hydraulic crushed stone breaker C is generally used to finely crush the natural crushed stone blocks W (see FIG. 27).

The hydraulic crushed stone breaker C is mounted on the tip of a working boom b of a construction vehicle M, and the working boom b
Is operated to apply the hydraulic crushed stone breaker C to the natural crushed stone mass W to perform the crushing operation. The natural crushed stone mass W is stabilized and crushed into a large number of small lumps w, w,.

During the crushing operation of the natural crushed stone mass W, the direction of the intrusion is inevitably shifted as the chisel c penetrates, or the position of the natural crushed stone mass W is caused by the vibration or impact of the hydraulic crushed stone breaker C. May change, and the hitting direction of the chisel c of the hydraulic crushed stone breaker C may be shifted. Therefore, even during the crushing, the worker must always correct the direction of the chisel c of the hydraulic crushed stone breaker C. Requires skilled workers.

[0005]

Conventionally, in a work of blasting a rocky mountain with a blasting material such as dynamite and crushing a large number of crushed natural crushed stone blocks W by a hydraulic crusher breaker C, depending on the working state, hydraulic crushed stone is used. In some cases, the breaker C may be hit without running, and the hydraulic crushed stone breaker C itself may be damaged early.

For this reason, it is necessary to set up the natural crushed stone block W in a state suitable for crushing work, which increases the number of steps. Further, a large number of small blocks w, w,. Not only was it extremely dangerous, but also noise was generated, resulting in the worst working environment (see FIG. 28).

As a solution to the disadvantages of the hydraulic crushed stone breaker C, the present applicant has already developed a crushed natural crushed stone mass W that can efficiently crush natural crushed stone mass W into a number of small lumps w, w,. We have developed a crusher, which allows various natural crushed stones to be dispersed in small lumps w, w, ...
This enables safe crushing work.

[0008] However, natural crushed stone blocks W vary in size,
In particular, it was difficult to crush large natural crushed stone blocks W into small blocks w, w,.

When a large natural crushed stone mass W is crushed by a lower jaw Jd and an upper jaw Ju of a conventional crusher, as shown in FIG. 27, the large natural crushed stone W is located between the lower jaw Jd and the upper jaw Ju. This is because, when it enters, the crushing surface of the upper jaw Ju hits the surface of the natural crushed stone mass W earlier than the crushing blade, and the crushing blade does not reach the natural crushed stone mass W and cannot be crushed at once.

[0010] For this purpose, the natural crushed stone block W must be re-added once again to be in an appropriate crushed state, or crushing work must be performed from another direction. Work was sometimes done.

[0011]

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 main body that opens and closes is provided, and a columnar crushing blade having a vertical column shape is provided from the distal end of the movable jaw main body toward the fixed jaw main body via a pedestal. The crushing operation of large natural crushed stone blocks W is greatly improved by using a natural crushed stone block crusher or the like that has a long dimension with the position of the cutting edge of the natural crushed stone blocks. This has solved the above problem.

[0012]

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 natural crushed stone crusher A of the present invention comprises And the movable jaw main body 3. First, the crusher casing 1
Specifically, it is formed in a housing shape, and the inside thereof is formed in a hollow shape.
Is provided.

The fixed jaw main body 2 is provided integrally with the crusher outer casing 1 so as to protrude outward at the lower end on the opening 1a side. As shown in FIG. 2, the fixed jaw main body 2 is formed to be long forward, and more specifically, the fixed jaw main body 2 is closed on the fixed jaw main body 2 so that the fixed jaw main body 2 is located forward of the movable jaw main body 3. It is the length that protrudes into.

When the fixed jaw body 2 projects forward longer than the movable jaw body 3 as described above, an appropriate natural crushed stone mass W is taken out of the piled natural crushed stone mass W, W,. The operation can be extremely efficient (see FIG. 22).

The movable jaw main body 3 opens and closes at the opening 1a of the crusher outer casing 1. The movable jaw main body 3 is pivotally supported, and the pivotally supported portion is a pivot base 4. As shown in FIG. 1 and FIG. 2, a columnar crushing blade 5 having a vertical column shape is provided at the distal end of the movable jaw main body 3, and the columnar crushing blade 5 is connected to the movable jaw main body 3. It is formed perpendicular to the base, and its tip is pyramidal (see FIGS. 3 and 5) or conical (see FIGS. 4 and 6).
It has become.

The length Hd from the position of the tip of the columnar crushing 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 long. As shown in FIGS. 3 to 6, the length of the conventional columnar crushing blade 5 s (illustrated by imaginary lines in the figure) is much longer than the length Hs, and the embodiment shown in FIGS. 4 and 6 is used. In this example, the columnar crushing blade 5 is approximately twice as large as the conventional columnar crushing blade 5s, but the present invention is not necessarily limited to this value.
What is necessary is that it is farther from the crushing work surface 3a than s.

The length (height) Hd from the blade tip of the columnar crushing blade 5 to the crushing work surface 3a of the movable jaw main body 3 is specifically determined by closing the movable jaw main body 3 in the direction of the fixed jaw main body 2. When crushing the crushed stone mass W, the natural crushed stone mass W becomes small lumps w,
, the columnar crushing blade 5 can be digged to a depth at which a crushable crack is generated, and the crushing work surface 3a of the movable jaw main body 3 reaches the surface of the natural crushed stone mass W, as shown in FIG. Before that, the natural crushed stone mass W is crushed.

The columnar crushing blade 5 provided on the movable jaw main body 3
In order to increase the length Hd from the tip position of the cutting edge and the crushing work surface 3a, the columnar crushing blade 5 raises the cutting edge of the columnar crushing blade 5 via the pedestal 6, or crushes the columnar crushing. In some embodiments, the height of the blade 5 is increased.

FIG. 3A shows an embodiment of the pedestal 6.
As shown in (b) and (b), the movable jaw body 3 is formed in a quadrangular prism shape or a cylindrical shape (not shown), and is formed separately from the movable jaw body 3 or integrally with the movable jaw body 3. The crushing surface 3a of the movable jaw main body 3 is provided at the tip of the crushing surface 3a, and the columnar crushing blade 5 of a normal height is fixed to the top of the pedestal 6.

As another embodiment, in the case of using only the columnar crushing blade 5 without using the pedestal 6, as shown in FIGS. 5 and 6, the columnar crushing blade 5 is used. The length Hd is about twice as large as the length Hs of the conventional columnar crushing blade 5s.

Next, a flat mountain-shaped concave surface d which is recessed in a flat mountain shape on the side of the crushing work surface 3a along the longitudinal direction of the movable jaw main body 3.
There are embodiments where n is formed. Here, the longitudinal direction of the movable jaw main body 3 refers to 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, and FIG. And (b) in the left-right direction of the movable jaw main body 3.

The flat chevron concave surface dn is formed so that the crushing work surface 3a side of the movable jaw main body 3 is depressed in a flat chevron shape along the longitudinal direction, and the shape thereof is a flat triangular shape as shown in FIG. There are embodiments which are formed in a mountain shape or a flat trapezoidal shape, or are formed in an arc shape as shown in FIG.

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 crusher outer casing 1) comes into contact with the surface of the natural crushed stone block W is made as long as possible, so that the columnar crushing blade 5
Only the natural crushed stone mass W can penetrate deeply.

With the above structure, the columnar crushing blade 5 reaches the natural crushed stone block W even if the natural crushed stone block W is inserted into the fixed jaw main body 2 at the back side (at the base of the crusher outer casing 1). Thus, the crushing work surface 3a side of the movable jaw main body 3 does not hit the natural crushed stone mass W first, and as a result, the crushing work surface 3a hits the surface of the natural crushed stone mass W as shown in FIG.
This prevents an inconvenient state in which the columnar crushing blade 5 cannot be easily pressed into the natural crushed stone block W.

Next, the fixed jaw main body 2 is provided with a crushed stone fixing blade 7 as shown in FIGS. 1 and 2 and the like. The fixed jaws 2 are formed in two rows along the longitudinal direction of the fixed jaw main body 2. The fixed jaws 7a, 7a,. 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 rows between the rows of fixed blades 7a, 7a,... Arranged in two rows along the longitudinal direction on the fixed jaw main body 2 are flat, and as shown in FIG. ,
The contact portion of the natural crushed stone mass W with the fixed jaw main body 2 can be properly accommodated between the rows, and the natural crushed stone mass W is crushed by the columnar crushing blade 5 on the movable jaw main body 3 side. This prevents the natural crushed stone block W from sliding back and forth and right and left.

The fixed jaw main body 2 is formed to be long in the longitudinal direction and wide in the width direction, and by increasing the area of the fixed jaw main body 2 as a whole, a large number of piled natural crushed stones W, W, ... take out the appropriate natural crushed stone mass W,
At the same time, it is convenient to scrape out many natural crushed stone blocks W, W,.

Further, on the fixed jaw main body 2, FIG.
As shown in FIG. 12, there is also an embodiment in which a detachable auxiliary body B is mounted, and when crushing a natural crushed stone mass W,
The natural crushed stone mass W is sandwiched between the auxiliary body B and the movable jaw main body 3, the movable jaw main body 3 is closed on the auxiliary body B, and the natural crushed stone mass W is crushed.

The auxiliary body B is composed of a working portion 8 and a mounting portion 9, and there are various embodiments of the working portion 8 and the mounting portion 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.

The fixed jaw body 2 has a mounting portion 10 formed therein. The mounting portion 10 is formed as a dovetail groove 10a, and as shown in FIGS. The dovetail mortise 9a is locked in the dovetail groove 10a. The dovetail tenon 9a is locked in the dovetail groove 10a, and the auxiliary body B is fixed to the surface of the fixed jaw main body 2. FIG. As shown in
The end of the auxiliary body B is fixed with a fixing tool such as a bolt,
Alternatively, although not shown, the structure is fixed to the fixed jaw main body 2 by welding means or the like.

As a second embodiment of the auxiliary body B, as shown in FIG. 15, the mounting portion 9 has a concave tapered mating portion 9b having a flat concave surface on the mounting surface side with the fixed jaw main body 2. The concave taper mating portion 9b is formed with opposed inner wall surfaces 9b1 and 9b1 formed in a bilaterally symmetric tapered shape, and the dovetail tenon 9a is formed at the center of both inner wall surfaces 9b1 and 9b1. Things.

Further, as shown in FIG. 16, the mounting portion 10 is formed with a convex tapered mating portion 10b having a flat swelling shape, and the convex tapered mating portion 10b is formed on the opposed outer wall surface 10b1. , 10b1 are formed, and the outer wall surfaces 10b1, 10b1 are also formed in a bilaterally symmetric tapered shape similarly to the inner wall surfaces 9b1, 9b1 of the concave taper mating portion 9b, and the inner wall surfaces 9b1, 9b1 and the outer wall surface 10b1 are formed.
, 10b1 have the same taper gradient, and when they are brought into contact with each other, an accurate and reliable contact state is achieved.

A dovetail groove 10a is formed at the center of the outer wall surfaces 10b1 and 10b1. The concave taper mating portion 9b and the convex taper mating portion 10b have the same gradient taper. When they are brought into contact, the two tapered surfaces match (see FIG. 17).

With the above structure, the auxiliary body B can be
In order to attach to the fixed jaw main body 2 through the dovetail, the dovetail tena 9a of the mounting part 9 is inserted into the dovetail groove 10a, and the concave taper mating part 9 is inserted.
b of the inner wall surfaces 9b1 and 9b1
The auxiliary body B is fixed to the front and rear of the auxiliary body B with the fixing plates 11 and 11 after being mounted until it comes into contact with the outer wall surfaces 10b1 and 10b1.

The auxiliary body B is prepared not only in one piece but also in plural pieces, and is mounted on the crushing work side of the fixed jaw body 2, that is, on the side meshing with the movable jaw body 3. The fixed jaw body 2 may be mounted on the back side, that is, on the side opposite to the crushing work side.

Further, as shown in FIG. 18, there is an embodiment in which the auxiliary body B is provided with the crushed stone fixing blade 7 as shown in FIG. 18. Specifically, as shown in FIG. The fixed blades 7a, 7a,... Forming the crushed stone fixing blade portion 7 are formed on the surfaces of the working sections 8, 8,.

Next, there is an embodiment in which the pivot base 4 of the movable jaw main body 3 is provided substantially at the center between the cylinder rotation base 12b of the cylinder 12 and the fixed jaw main body 2. In this embodiment, the movable jaw main body 3 is provided. On the fixed jaw main body 2 in the vertical direction.

The cylinder 12 has a cylinder body 12a.
Is pivotally supported by the crusher outer casing 1 so that the cylinder 12 can swing vertically in the crusher outer casing 1 (see FIG. 2 and the like).

The piston rod 12c of the cylinder 12
Is supported by a pin at the tip of the crushing jaw of the movable jaw body 3, and the piston rod 12 c expands and contracts from the cylinder cylinder 12 a when hydraulic oil flows in and out of the cylinder 12 to pivot on the movable jaw body 3. The operation of opening and closing the fixed jaw body 2 about the support base 4 is given.

The pivot base 4 of the movable jaw main body 3 is present in the outer casing 1 of the crusher as described above.
The pivot base 4 between the crusher outer casing 1 and the crusher outer casing 1
b and the fixed jaw body 2, and specifically, the position of the pivot base 4 of the movable jaw body 3 is, as shown in FIG. This is a substantially intermediate point between the base of the crusher outer casing 1 and the cylinder rotation base 12b. The distance from the average surface position of the fixed jaw main body 2 to the pivot portion P3 of the movable jaw main body 3 is referred to as a distance X0 as shown in FIG.

The pivot base 4 of the movable jaw main body 3 exists in the outer casing 1 of the crusher as described above, and
If the pivot point of the crusher outer casing 1 is referred to as a pivot portion P3, and the pivot point of the cylinder 12 relative to the crusher outer casing 1 is referred to as a cylinder pivot portion Ps, the pivot portion P3
Exists between the cylinder pivot Ps and the fixed jaw body 2,
More specifically, the position of the pivot portion P3 is located substantially at the middle of the lower end of the root of the cylinder pivot portion Ps and the outer casing 1 of the fixed jaw main body 2.

The cylinder output is (Q), and the distance between the pivot P3 of the movable jaw body 3 and the intersection Pc orthogonal to the output direction of the cylinder output Q from the pivot P3 of the movable jaw body 3 is (X). If the crushing force due to the cylinder output is (F) and the distance from the pivot P3 to the columnar crushing blade 5 is (Y), the crushing force F is expressed by the following equation.

F = Q × X ÷ Y As shown in FIG. 20, the distance X varies depending on the open / close state of the movable jaw body 3.
The distance X is maximized when is fully opened, and the distance X is also minimized when closed. Therefore, from the above equation, the pivot P
By setting the distance (Y) from 3 to the columnar crushing blade 5 to a small value, the crushing force (F) can be increased.

On the other hand, the pivot portion PO3 of the conventional movable jaw main body O3 is provided at the base of the crusher outer casing 1 and the fixed jaw main body 2, and is intended to crush large natural crushed stone blocks W. In this case, the conventional movable jaw body O3 shown in the imaginary line part (the part shown by the two-dot chain line) in FIG. The distance from the O3 pivot PO3 to the cutting edge of the columnar crushing blade 5 must be long.

When the conventional movable jaw main body O3 having such a large size is used, as is apparent from the above-described equation for calculating the crushing force F, the pivotal support PO3 of the conventional movable jaw main body O3 and the columnar crusher are used. The distance YO from the blade 5 increases, and therefore the crushing force F decreases.

The distance between the cylinder pivot Ps of the present invention and the pivot P3 of the movable jaw body 3, the distance between the conventional cylinder pivot POs of the conventional type and the pivot P of the conventional movable jaw main O3.
The distance from O3 is assumed to be equal (see FIG. 21).

Therefore, the distance Y between the pivot P3 of the movable jaw main body 3 and the columnar crushing blade 5 in the present invention is considerably longer than the distance YO between the pivotal support PO3 of the conventional movable jaw main body O3 and the columnar crushing blade 5. Since the numerical value can be set to a small value, the crushing force F of the movable jaw main body 3 of the present invention can be made larger than that of the conventional type movable jaw main body O3 based on the above formula (see FIGS. 20 and 21).

Further, the fixed jaw main body 2 and the pivot portion P3 of the movable jaw main body 3 have a large space through the outer casing 1 of the crusher, and as shown in FIG. Since the movable jaw body 3 is fully opened at a distance X0 from the fixed jaw body 2 since it is located at a distance X0 from the average surface position, the respective distal end portions of the fixed jaw body 2 and the movable jaw body 3 are It has a large diameter and can sandwich a large crushed natural crushed stone W than the conventional movable jaw body O3.

As shown in FIGS. 22 to 25, the natural crushed stone crusher A according to the present invention comprises a working boom b of a construction vehicle M.
The crushed natural rock mass W is crushed by a blasting material such as dynamite. Blasts and a large number of natural crushed stones W, W,... Are piled up (see FIG. 22).

The pile of natural crushed stones W,
W,..., And using the portion of the fixed jaw body 2 of the natural crushed stone crusher A, etc., scrapes out the natural crushed stone lumps W one by one from the piled crushed natural crushed stone W, .. Are taken out one by one from the crushed stone blocks W, W,.

Next, with the natural crushed stone mass W interposed between the fixed jaw main body 2 and the movable jaw main body 3, the movable jaw main body 3 is moved to the fixed jaw main body 2 side to provide the movable jaw main body 3. The columnar crushing blade 5 cuts into the natural crushed stone mass W, crushes the natural crushed stone mass W, and further forms small lumps w, w,... (See FIGS. 24 and 25).

[0052]

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 the crusher, and a movable jaw main body 3 for opening and closing the fixed jaw main body 2 is provided. Pedestal 6
A columnar crushing blade 5 having a vertical column shape is provided in the direction of the fixed jaw main body 2 through the, and the size of the crushing work surface 3a at the tip of the movable jaw main body 3 and the position of the cutting edge of the columnar crushing blade 5 is formed to be long. First, the crushing operation of a large natural crushed stone block W can be crushed in one operation, and the crushed state of the natural crushed stone block W It can be made very good, thirdly, the production of the natural crushed stone crusher A of the present invention can be efficiently performed, and fourthly, the durability of the columnar crushing blade 5 can be improved. Has the effect of

The effect will be described in detail. The dimension from the top of the vertical columnar crushing blade 5 provided in the direction of the fixed jaw main body 2 to the tip of the movable jaw main body 3 to the crushing work surface 3a side of the movable jaw main body 3 is described. When the natural crushed stone mass W is crushed by opening and closing the fixed jaw main body 2 and the movable jaw main body 3, the crushing work surface 3 a of the movable jaw main body 3 contacts the natural crushed stone mass W. Without contact, the columnar crushing blade 5 provided at the tip of the movable jaw main body 3 first bites into the natural crushed stone mass W, and even if the large natural crushed stone mass W is opened and closed, the movable jaw main body 3 is opened and closed almost once. The large natural crushed stone block W can be reliably crushed.

That is, since the tip of the columnar crushing blade 5 has a large protrusion from the crushing work surface 3a of the movable jaw body 3, the crushing work surface 3a hardly comes into contact with the natural crushed stone W and the columnar crushing blade 5 can crush the natural crushed stone mass W without any hindrance.

Therefore, when the movable jaw main body 3 approaches the fixed jaw main body 2 side and closes, the natural crushed stone block W has already been completely crushed, and when the large crushed stone block W is crushed. Work surface 3 of movable jaw body 3 which was a drawback of
a is in contact with the natural crushed stone W, and the columnar crushing blade 5 cannot bite into the natural crushed stone W
The inconvenience that crushing is impossible is reliably solved.

Further, since the columnar crushing blade 5 crushes the natural crushed stone block W as a concentrated load, it can be partially crushed.

Further, since the pedestal 6 does not require a particularly high accuracy if the height direction is a predetermined direction, the pedestal 6 can be made thicker than the columnar crushing blade 5. Not only can the strength of the lower portion supporting the columnar crushing blade 5 be improved, but also the columnar crushing blade 5
Is provided on the movable jaw main body 3, so that the length of the columnar crushing blade 5 itself does not need to be particularly large, and the columnar crushing blade 5 falls down or bends even when it receives a reaction force from the natural crushed stone mass W during the crushing operation. Can be prevented.

Next, in claim 2, in claim 1, the movable jaw main body 3 is made swingable by a cylinder 12 mounted in the crusher outer casing 1 via a cylinder rotation base 12b, Since the pivot base 4 of the movable jaw main body 3 is a natural crushed stone crusher which is formed as a substantially central portion of the cylinder rotating base 12b and the fixed jaw main body 2, even a large natural crushed stone W can be held very easily. Can be included.

The effect is described in detail. Since the distance between the base of the fixed jaw main body 2 and the pivot base 4 of the movable jaw main body 3 is increased, the movable jaw main body 3 is separated from the fixed jaw main body 2. In order to open and close in the closed position, even a very large natural crushed stone mass W can be held between the fixed jaw main body 2 and the movable jaw main body 3 and the tip of the columnar crushing blade 5 of the movable jaw main body 3 The natural crushed stone block W can be reliably crushed by being formed long from the crushing work surface 3a.

Further, since the pivot base 4 of the movable jaw main body 3 is provided substantially at the center between the cylinder rotating base 12b and the fixed jaw main body 2, the longitudinal direction of the movable jaw main body 3 is particularly elongated. It does not need to be formed in any length, and a normal length can be sufficient.

On the other hand, if a conventional type in which the pivot PO3 of the movable jaw main body O3 is provided at the base of the crusher outer casing 1 and the fixed jaw main body 2, a large natural crushed stone W
In order to crush the movable jaw body O3 of the conventional type becomes long in the longitudinal direction, not only must such a long movable jaw body O3 be specially manufactured, but also the elongated movable jaw body O3 O3 adds the natural crushed stone mass W to the fixed jaw main body 2 at a large angle with respect to the fixed jaw main body 2. As the movable jaw main body 3 is closed toward the fixed jaw main body 2 for crushing work,
The natural crushed stone mass W is extruded from the fixed jaw main body 2.

In the present invention, the movable jaw main body 3 is configured to be opened and closed above the fixed jaw main body 2 in advance, so that the large natural crushed stone mass W can be combined with the fixed jaw main body 2 in the present invention. The angle between the movable jaw main body 3 and the fixed jaw main body 2 in the state of being held by the movable jaw main body 3 can be significantly reduced as compared with the conventional type, and the natural crushed stone mass W There is also an advantage that it can be prevented from being extruded without being crushed.

As shown in FIG. 21, the distance Y from the pivot P3 (at the pivot base 4) of the movable jaw main body 3 to the columnar crushing blade 5 in the present invention is the pivot of the conventional movable jaw main body O3. It is possible to make the numerical value smaller than the distance YO between PO3 and the columnar crushing blade 5, so that the crushing force F by the movable jaw body 3 of the present invention is reduced by the conventional movable jaw body O.
3 can be larger than that.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a natural crushed stone crusher of the present invention.

FIG. 2 (a) is a longitudinal side view of a natural crushed stone crusher of the present invention, and (b) is a sectional view of a movable jaw main body.

FIG. 3A is a perspective view of a pyramidal columnar crushing blade via a pedestal at the tip of a movable jaw main body. FIG. 3B is a side view of a pyramidal columnar crushing blade via a pedestal at a tip of the movable jaw main body.

FIG. 4 is a perspective view of a conical columnar crushing blade at the tip of a movable jaw main body.

FIG. 5 is a perspective view of another embodiment of a pyramidal shape at the tip of the movable jaw main body.

FIG. 6 is a perspective view of another embodiment of a conical shape at the tip of the movable jaw body.

FIG. 7 is a schematic view of a natural crushed stone crusher attempting to crush natural crushed stone.

FIG. 8 is a schematic diagram of a state where a natural crushed stone crusher is crushed by a natural crushed stone crusher.

FIG. 9 is a schematic view showing a comparison between the present invention and a conventional type of a columnar crushing blade which is hard to crush a natural crushed stone mass.

FIG. 10 is a schematic longitudinal sectional front view of a state in which a natural crushed stone mass is crushed by a fixed jaw main body and a movable jaw main body.

FIG. 11 is a longitudinal side view of another embodiment of the natural crushed stone crusher of the present invention.

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 vertical sectional front view of a main part of an auxiliary body, and FIG. 14B is an enlarged vertical sectional side view of a main part of an auxiliary body.

FIG. 15 is a perspective view of an embodiment of an auxiliary body.

FIG. 16 is a perspective view of an embodiment in which an attached portion is provided on a fixed jaw main body.

FIG. 17 is a plan view of an auxiliary body.

FIG. 18 is a perspective view of an embodiment in which an auxiliary body is provided with a crushed stone fixing blade portion.

FIG. 19 is a perspective view of a main part of an embodiment in which the auxiliary body is provided with a crushed stone fixing blade portion.

FIG. 20 is a schematic view in which a movable jaw main body is provided at a central portion between a fixed jaw main body and a cylinder rotation base.

FIG. 21 is a schematic view showing an output state of a movable jaw main body.

FIG. 22 is a schematic view showing a state in which natural crushed stone is taken out by a natural crushed stone crusher.

FIG. 23 is a schematic view showing a state in which a natural crushed stone crusher is about to be crushed by a natural crushed stone crusher.

FIG. 24 is a schematic view showing a state in which one natural crushed stone is crushed by a natural crushed stone crusher.

FIG. 25 is a schematic diagram showing a state in which a natural crushed stone crusher is completely crushed into a plurality of small lumps by a natural crushed stone crusher.

FIG. 26 is a schematic view of the prior art.

FIG. 27 is a schematic view showing a conventional crushing operation of a natural crushed stone mass.

FIG. 28 is a schematic view showing a state during the crushing operation of a natural crushed stone mass according to the prior art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Crusher outer housing 2 ... Fixed jaw main body 3 ... Movable jaw main body 3a ... Crushing work surface 4 ... Pivot base 5 ... Columnar crushing blade 6 ... Pedestal 12 ... Cylinder 12b ... Cylinder rotation base

──────────────────────────────────────────────────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) Inventor Masayuki Asai Chiba Hanamigawa-ku Chikusa-cho, 314 address Stock Company Sakado work-house (56) Reference Patent Sho 59-187976 (JP, A) (58 ) investigated the field (Int.Cl. ^7, DB name) B02C 1/02-1/10

Claims (2)

(57) [Claims] 1. A forms a fixed jaw body at the bottom of the crushing outside筺, provided movable jaw body for opening and closing the upper the fixed jaw body, movable
From the distal end of the moving jaw body to the fixed jaw body via the pedestal
A natural crushed stone crusher characterized by comprising a columnar crushing blade having a straight column shape and having a long dimension between the crushing work surface at the tip of the movable jaw main body and the cutting edge position of the columnar crushing blade. 2. The crusher according to claim 1, wherein
Possible with the cylinder mounted via the cylinder rotation base
The movable jaw body is swingable, and the pivot base of the movable jaw body is closed.
An approximately central part between the base for rotating the cylinder and the body of the fixed jaw
The crushed natural stone crusher according to claim 1.