JPH06315644A - Natural crushed stone lump crushing machine - Google Patents

Abstract

PURPOSE:To surely crush even an extremely large-sized natural crushed stone lump and crush this lump to plural small lumps with a min. number of crushing times. CONSTITUTION:A stationary jaw body 2 is formed in the lower part of a casing 1 of the crushing machine and is provided with a moving jaw body 3 which opens and closes above this stationary jaw body 2. A vertical cracking large blade 5 having a half split spheroid shape is disposed in the direction of the stationary jaw body 2 from the front end of the moving jaw body 3. The size between the crushing working surface 3a side at the front end of the moving jaw body 3 and the blade edge position of the vertical cracking large blade 5 is formed extremely long.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is capable of reliably crushing an extremely large crushed natural crushed stone mass and crushing a crushed natural crushed stone mass into a desired small lump with a minimum number of crushing times. Regarding the machine.

[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. A large number of natural crushed stone lumps W, W, ... And further, in order to crush the natural crushed stone lump W into fine pieces, a hydraulic crushed stone breaker C is generally used (see FIG. 27).

The hydraulic crushed stone breaker C is mounted on the tip of the work boom b of the construction vehicle M, and the work boom b is attached.
Is operated to apply the hydraulic crushed stone breaker C to the natural crushed stone lump W to perform the crushing work. The natural crushed stone lump W is brought into a stable state and finely crushed into a large number of small lumps w, w, ....

Further, during the crushing work of the natural crushed stone lump W, the penetration direction is inevitably shifted as the chisel c penetrates, or the position of the natural crushed stone lump W is caused by vibration or impact of the hydraulic crushed stone breaker C. Change and the impact direction of the chisel c of the hydraulic crushed stone breaker C may shift, so that the worker must always correct the direction of the chisel c of the hydraulic crushed stone breaker C even during crushing. Requires skilled workers.

[0005]

Conventionally, in the work of crushing a rock mountain with a blast material such as dynamite and crushing a large number of piles of natural crushed stones W with a hydraulic crushed stone breaker C, hydraulic crushed stones are used depending on the working state. The breaker C may be idled 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 lump W in a state suitable for the crushing work, and the number of steps is increased. Furthermore, a large number of small lumps w, w, ... Not only was it extremely dangerous, but noise was also generated, resulting in the worst working environment (see FIG. 28).

As a solution to the above-mentioned drawbacks of the hydraulic crushed stone breaker C, the applicant has already been able to efficiently crush the crushed natural stone lump W into a large number of small lumps w, w ,. We are developing a crusher, which allows various natural crushed stone lumps to be scattered without causing small lumps w, w, ...
This enables safe crushing work.

However, the natural crushed stone lump W has various sizes,
In particular, it was difficult to crush a large crushed natural stone W into small lumps w, w, ...

When a large crushed natural stone W is crushed by the lower jaw Jd and upper jaw Ju of a conventional type crusher, as shown in FIG. 27, it is located behind the lower jaw Jd and upper jaw Ju. This is because, when it enters, the crushing side surface of the upper jaw portion Ju hits the surface portion of the natural crushed stone lump W before the crushing blade, and the crushing blade does not reach the natural crushed stone lump W and cannot be crushed at once.

For this reason, the natural crushed stone lump W must be added again to bring it into a proper crushing state, or crushing work must be performed from a different direction, increasing the number of crushing work steps, resulting in inefficiency. It was sometimes a work.

[0011]

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. By using a natural crushed stone lump crusher that is formed to have a large size with the position, the efficiency of crushing a large natural crushed stone lump W is significantly improved and the natural crushed stone lump W is crushed very safely. It is possible to solve the above problems.

[0012]

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

The fixed jaw body 2 is integrally provided on the crusher casing 1 so as to project outward at the lower end of the opening 1a. As shown in FIG. 2, 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.

When a fixed natural crushed stone mass W is taken out from a pile of natural crushed stone masses W, W, ... This can be extremely efficient work (see FIG. 22).

The movable jaw main body 3 is opened and closed at the opening 1a of the shredder casing 1, and the movable jaw main body 3 is pivotally supported, and the pivotally supported base 4 is used as the pivot support base 4. As shown in FIGS. 1 and 2, etc., at the tip of the movable jaw main body 3, there is provided an abacus bead-shaped vertical split large blade 5 of a half split shape.

The dimension of the length Hd from the position of the tip of the large vertical split 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 long. 3 to 6, as shown in FIGS. 3 to 6, it is formed to be significantly longer than the length Hs of the conventional type large vertical split blade 5s (shown in phantom in the drawing). In the embodiment, the vertical dividing large blade 5 is approximately twice as large as the conventional type vertical dividing large blade 5s, but the number is not necessarily limited to this value, and the blade tip of the vertical dividing large blade 5 is of the conventional type. Split large blade 5
It is only necessary to be far from the crushing work surface 3a than s.

The length (height) Hd from the blade tip of the large vertical blade 5 to the crushing work surface 3a of the movable jaw body 3 is specifically determined by closing the movable jaw body 3 in the fixed jaw body 2 direction. When crushing the natural crushed stone lump W, the natural crushed stone lump W is a small lump w,
It is possible to bite the large vertical cutting blade 5 to a depth at which w, ... Can crack, and as shown in FIG. 8, the crushing work surface 3a of the movable jaw body 3 is placed on the surface of the natural crushed stone W. The crushed natural crushed stone mass W is crushed before reaching.

In order to make the length Hd from the tip end position of the abacus bead-shaped vertically dividing large blade 5 provided on the movable jaw body 3 and the crushing work surface 3a long, the vertically dividing large blade There are also examples 5 in which the blade tip of the vertically dividing large blade 5 is made high or the height dimension of the vertically dividing large blade 5 is made long via the pedestal 6.

As an example of the pedestal 6, as shown in FIGS. 2 to 4 and the like, the pedestal 6 is formed in a pyramid shape having a flat top, and is made of a material different from the movable jaw body 3. Or
Alternatively, it is formed integrally with the movable jaw body 3, is provided at the tip of the crushing work surface 3a of the movable jaw body 3, and has a vertical cutting large blade 5 of ordinary height at the top of the pedestal 6.
Is fixed.

Also, the large vertical split blade 5 without using the pedestal 6
In the case of an embodiment constituted only by, as shown in FIG. 6, the length Hd of the vertical split large blade 5 is about twice as large as the length Hs of the conventional type vertical split large blade 5s. The one used is used.

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

The flat chevron concave surface dn is formed such that the crushing work surface 3a side of the movable jaw body 3 is recessed in a flat chevron shape along the longitudinal direction, and the shape thereof is a flat triangle as shown in FIG. 2 (a). There is an example in which it is formed in a mountain shape or a flat trapezoidal shape, or is formed in an arc shape as shown in FIG.

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 making the stroke until the crushing work surface 3a (close to the crusher outer casing 1) of the movable jaw body 3 abuts on the surface of the natural crushed stone mass W, the large vertical split blade 5
Only the crushed stone mass W can penetrate deeply into it.

With the above structure, even if the natural crushed stone lump W is inserted up 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 turns the natural crushed stone lump W into the natural crushed stone lump W. Before reaching, the crushing work surface 3a side of the movable jaw body 3 does not hit the natural crushed stone mass W, so that 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 large vertical cutting blade 5 is difficult to dent into the natural crushed stone lump W.

Next, as shown in FIGS. 1 and 2, 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 fixed to a plurality of fixed portions. .., and the plurality of fixed blades 7a, 7a, ... Are formed in two rows along the longitudinal direction of the fixed jaw body 2. Here, the longitudinal direction of the fixed jaw main body 2 is a direction connecting the root 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 a flat shape between the rows of fixed blades 7a, 7a, ... Arranged in two rows along the longitudinal direction, as shown in FIG. ,
The contact portion of the natural crushed stone mass W with the fixed jaw body 2 can be properly accommodated between the rows, and the natural crushed stone mass W is separated by the large vertical blade 5 on the movable jaw body 3 side. This is to prevent the natural crushed stone block W from slipping forward, backward, leftward or rightward when crushing.

Further, the fixed jaw main body 2 is formed to be long in the longitudinal direction and wide in the width direction, and the area of the fixed jaw main body 2 is increased as a whole, so that a large number of piled natural crushed stones W, Take out an appropriate natural crushed stone block W from W ...
At the same time, it is convenient when many natural crushed stone lumps W, W, ... Are scraped out, and furthermore, large-sized natural crushed stone lumps W are reliably scratched, and the work efficiency can be improved.

Further, on the fixed jaw body 2, as shown in FIG.
As shown in FIG. 12, there is an example in which a detachable auxiliary body B is attached, and when crushing the natural crushed stone lump W,
A natural crushed stone lump W is sandwiched between the auxiliary body B and the movable jaw body 3, the movable jaw body 3 is closed on the auxiliary body B, and the natural crushed stone lump W is crushed.

The auxiliary body B is composed of a working portion 8 and a mounting portion 9. There are various working examples of the working portion 8 and the mounting portion 9. The first working example 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.

The fixed jaw body 2 is provided with an attached portion 10, which is formed as a dovetail groove 10a. As shown in FIGS. 13 and 14 (a), the attaching portion is formed. The dovetail 9a of 9 is configured to be locked in the dovetail groove 10a. The dovetail 9a is locked in the dovetail groove 10a, and the auxiliary body B is fixed to the surface of the fixed jaw body 2 as shown in 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 such that it is fixed to the fixed jaw 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 taper fitting portion 9b serving as a flat concave surface on the mounting surface side with the fixed jaw body 2. The concave tapered mating portion 9b is formed with opposed inner wall surfaces 9b1 and 9b1 which are symmetrically formed in a tapered shape, and the dovetail 9a is formed at the center of both inner wall surfaces 9b1 and 9b1. It is a thing.

Further, as shown in FIG. 16, the attached portion 10 is provided with a convex taper fitting portion 10b having a flat and raised shape, and the convex taper fitting portion 10b is opposed to the outer wall surface 10b1. , 10b1 are formed, and the outer wall surfaces 10b1, 10b1 are also symmetrically tapered like the inner wall surfaces 9b1, 9b1 of the concave taper fitting portion 9b, and the inner wall surfaces 9b1, 9b1 and the outer wall surface 10b1 are also formed.
, 10b1 and the taper gradients are the same, and when they are brought into contact with each other, the contact state is accurate and reliable.

A dovetail groove 10a is formed in the central portion of both outer wall surfaces 10b1 and 10b1. The concave taper fitting portion 9b and the convex taper fitting portion 10b have the same taper, and both of them are formed. When they are brought into contact with each other, both tapered surfaces coincide with each other (see FIG. 17).

With the above structure, the auxiliary body B is attached to the mounted portion 10
To mount the fixed jaw body 2 via the dovetail, insert the dovetail tenon 9a of the attaching part 9 into the dovetail groove 10a,
Inner wall surfaces 9b1 and 9b1 of b are convex taper fitting portions 10b
It is slid until it comes into contact with the outer wall surfaces 10b1 and 10b1 of the above, and after attachment, the front and rear of the auxiliary body B are fixed by the fixing plates 11 and 11.

The auxiliary body B is not limited to one, but a plurality of auxiliary bodies B are prepared and mounted on the crushing work side of the fixed jaw body 2, that is, on the side that meshes with the movable jaw body 3, but if necessary. Thus, it may be mounted on the back side of the fixed jaw body 2, that is, on the side opposite to the crushing work side.

Further, as the auxiliary body B, there is an embodiment in which the crushed stone block fixing blade portion 7 is provided as shown in FIG. 18, and more specifically, as shown in FIG. The fixed blades 7a, 7a, ... Constituting the crushed stone block fixing blade portion 7 are formed on the surfaces of the working portions 8, 8 ,.

Next, there is an embodiment in which the pivot support base portion 4 of the movable jaw body 3 is provided at a substantially central portion between the cylinder rotation base portion 12b of the cylinder 12 and the fixed jaw body 2. For this embodiment, the movable jaw body 3 is used. Is opened and closed on the fixed jaw body 2 in the vertical direction.

The cylinder 12 has a cylinder barrel 12a.
A cylinder rotation base portion 12b provided on the crusher is pivotally supported by the crusher outer casing 1, and the cylinder 12 is vertically swingable in the crusher outer casing 1 (see FIG. 2 and the like).

The piston rod 12c of the cylinder 12
The tip of the is rotatably supported by a pin on the tip of the crushing jaw of the movable jaw body 3, and when the hydraulic oil flows in and out of the cylinder 12, the piston rod 12c expands and contracts from the cylinder barrel 12a and pivots to the movable jaw body 3. The operation to open and close the fixed jaw body 2 around the support base 4 is given.

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

The pivotal base 4 of the movable jaw body 3 is present in the shredder casing 1 as described above, and the movable jaw body 3 is
If the pivot point for the shredder outer casing 1 is referred to as a pivot portion P3, and the pivot point for the cylinder 12 for the shredder outer casing 1 is referred to as a cylinder pivot portion Ps, the pivot portion P3
Exists between the cylinder pivot portion Ps and the fixed jaw body 2,
More specifically, the position of the pivot portion P3 is approximately the middle of the lower end of the base position between the cylinder pivot portion Ps and the crusher outer casing 1 of the fixed jaw body 2.

By the way, the cylinder output is (Q), and the distance between the pivot portion P3 of the movable jaw body 3 and the intersection point Pc orthogonal to the output direction of the cylinder output Q from the pivot portion P3 of the movable jaw body 3 is (X). , The crushing force due to the cylinder output is (F), and the distance from the pivotal support P3 to the large vertical blade 5 is (Y), the crushing force F is expressed by the following equation.

F = Q × X ÷ Y The distance X is variable according to the open / closed state of the movable jaw body 3 as shown in FIG.
The distance X is maximized when is opened to the maximum, and the distance X is minimized when closed. Therefore, from the above formula,
The crushing force (F) can be increased by setting the distance (Y) from 3 to the large vertical cutting blade 5 to a small value.

On the other hand, the pivotal support portion PO3 of the conventional type movable jaw main body O3 is provided at the base of the crusher outer casing 1 and the fixed jaw main body 2, and attempts to crush a large crushed natural stone W. In this case, the movable jaw body O3 of the conventional type shown in the phantom line portion (the portion indicated by the chain double-dashed line) in FIG. 21 is the movable jaw body of the conventional type because it can hold a large crushed stone mass W. The distance from the pivot point PO3 of O3 to the cutting edge of the large vertical split blade 5 must be long.

When the large-sized conventional type movable jaw body O3 is used, as is apparent from the above formula for calculating the crushing force F, the conventional type movable jaw body O3 is vertically split with the pivotal support portion PO3. The distance YO with the large blade 5 increases, and the crushing force F decreases accordingly.

The distance between the cylinder pivot portion Ps of the present invention and the pivot portion P3 of the movable jaw body 3, the conventional type cylinder pivot portion POs, and the pivot portion P of the conventional type movable jaw body O3.
It is assumed that the distance from O3 is the same (see FIG. 21).

Therefore, the distance Y between the pivotal support portion P3 of the movable jaw body 3 and the vertical dividing large blade 5 in the present invention is more than the distance YO between the pivotal support portion PO3 of the conventional type movable jaw body O3 and the vertical dividing large blade 5. Since it can be set to a considerably 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 from the above formula (see FIGS. 20 and 21).

Further, the fixed jaw main body 2 and the pivotal support P3 of the movable jaw main body 3 are widely spaced from each other via the crusher outer casing 1, and as shown in FIG. Since the position is a distance X0 from the average surface position, when the movable jaw body 3 is opened to the maximum with a distance X0 from the fixed jaw body 2, the respective tip portions of the fixed jaw body 2 and the movable jaw body 3 are It has a large diameter so that it can sandwich a crushed stone block W that is much larger than the conventional movable jaw body O3.

The natural crushed stone crusher A of the present invention, as shown in FIGS. 22 to 25, has a work boom b for a construction vehicle M.
It is attached to the tip of the crusher and is operated by a worker from the operator's cab r. In the work of crushing the natural crushed stone lump W by the natural crushed stone crusher A, first, a rock mountain that can be crushed with a blast material such as dynamite Blasting causes a large number of crushed stone blocks W, W, ... to pile up (see FIG. 22).

A large number of natural crushed stone lumps W in the pile,
W, ..., Using the fixed jaw body 2 of the natural crushed stone crusher A, etc., scrape out one natural crushed stone lump W from the piled natural crushed stone lumps W, or a large number of piled natural crushed stones. Take out one by one from the crushed stone blocks W, W, ... (See FIG. 23).

Next, the movable jaw main body 3 was moved to the fixed jaw main body 2 side with the natural crushed stone mass W sandwiched between the fixed jaw main body 2 and the movable jaw main body 3 to be provided on the movable jaw main body 3. The vertical division large blade 5 bites into the crushed natural stone W and crushes the crushed natural stone W into smaller pieces w, w, ... (See FIGS. 24 and 25).

[0052]

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,
First, a large-sized natural crushed stone lump is formed by using a natural crushed stone crusher in which the crushing work surface 3a side of the tip of the movable jaw body 3 and the blade tip position of the vertically dividing large blade 5 are formed to be long. There are various effects such that the crushing work of W can be crushed in almost one operation, and secondly, the crushed state of the crushed natural stone lump W can be made extremely excellent.

To explain the above effect in detail, the crushing work surface 3a of the movable jaw body 3 from the top portion of the half-cutting disc bead-shaped vertically dividing large blade 5 provided in the direction of the fixed jaw body 2 from the tip of the movable jaw body 3.
When the crushed 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 3a of the movable jaw main body 3 is formed of natural crushed stone by forming the dimension up to the side. Lump W
The large vertical blade 5 provided at the tip of the movable jaw body 3 bites into the natural crushed stone lump W first without contacting the movable jaw body 3, and even if the large crushed stone lump W is opened and closed, the movable jaw body 3 is opened and closed almost once. The large natural crushed stone lump W can be reliably crushed by the operation.

That is, since the blade tip portion of the large vertical split blade 5 has a large protrusion from the crushing work surface 3a of the movable jaw body 3, the crushing work surface 3a hardly touches the crushed natural stone W and is vertically split. When the large blade 5 crushes the crushed natural stone block W,
Crushing work can be performed without any interference.

Therefore, when the movable jaw main body 3 approaches the fixed jaw main body 2 side and closes, the natural crushed stone lump W has already been completely crushed, and when crushing a large crushed stone lump W. Work surface 3 of the movable jaw body 3
Since the a is replaced by the natural crushed stone lump W and the vertical blade 5 cannot penetrate into the natural crushed stone lump W, the natural crushed stone lump W is therefore created.
It is possible to surely solve the inconvenience that the crushing of is impossible.

Next, in claim 2, the large vertical split blade 5
Is provided with a large-scale vertical cutting blade 5 in the shape of a half-divided disc in the direction of the fixed jaw main body 2 from the tip of the movable jaw main body 3 through the pedestal 6, and the crushing work surface 3a side of the tip of the movable jaw main body 3 and the large vertical cutting blade The natural crushed stone crusher A can be efficiently manufactured by using the natural crushed stone crusher A having a large size with the blade edge position of No. 5, and secondly, the durability of the vertically divided large blade 5 Can be improved.

The above-mentioned effect will be described in detail. A vertically dividing large blade 5 is provided at the tip of the movable jaw main body 3 via a pedestal 6, and the vertically dividing large blade 5 is fixed to the pedestal 6 to vertically divide it. Since the length H between the tip position of the large blade 5 and the crushing work surface 3a of the movable jaw main body 3 is large, the vertically dividing large blade 5 does not use a particularly long blade, but is of a conventional type. It is possible to use the vertical dividing large blade 5, and it is not necessary to produce or prepare a new vertical dividing large blade 5 for the production of the natural crushed stone crushing machine A. Therefore, it is possible to eliminate waste. Become.

Further, the pedestal 6 does not require particularly high accuracy if the height direction is predetermined, so that the pedestal 6 can be manufactured to have a larger wall thickness than the large vertically split blade 5. Not only can the strength of the lower portion supporting the vertical split large blade 5 be improved, but also the vertical split large blade 5 can be inserted through the pedestal 6.
Since it is provided on the movable jaw body 3, it is not necessary to particularly increase the length of the vertically dividing large blade 5, and even if the reaction force from the natural crushed stone mass W at the time of crushing work is received, the vertically dividing large blade 5 may fall. , Can be prevented from bending.

In the third 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 fixed from the tip of the movable jaw body 3. A vertical division large blade 5 in the form of a half-divided disc is provided in the direction of the jaw body 2, and the dimension between the crushing work surface 3a side of the tip of the movable jaw body 3 and the blade tip position of the vertical division large blade 5 is formed to be long. By using the natural crushed stone crushing machine in which the longitudinal crushing work side surface of the movable jaw body 3 is formed into the flat chevron-shaped concave surface dn, a large natural crushed stone lump W is provided in the back of the fixed jaw body 2 and the movable jaw body 3. Even if it gets in, reliable crushing work can be performed.

The above effect will be described in detail. When the large crushed stone mass W is on the back side of the fixed jaw body 2 and the movable jaw body 3, the movable jaw body 3 is inevitably closed when the movable jaw body 3 is closed. The crushing work surface 3a tends to come into contact with the surface of the large crushed natural stone lump W earlier than the large vertical split 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, rather than the shape of the crushing work surface 3a that is uniformly flat,
Since the distance between the crushing work surface 3a side of the movable jaw body 3 and the natural crushed stone lump W can be increased, and the tip of the large vertically dividing blade 5 projects long, the natural crushed stone lump W is fixed jaw body. Even if the movable jaw body 3 and the movable jaw body 3 are held deep inside, the vertically dividing large blade 5 can contact and bite before the flat chevron concave surface dn of the movable jaw body 3, and the crushing work surface of the movable jaw body 3. 3a does not contact the crushed natural stone W
Can be reliably crushed.

Next, in claim 4, the crusher outer casing 1
A fixed jaw main body 2 is formed in the lower part of the crusher, and a movable jaw main body 3 that opens and closes the fixed jaw main body 2 by a cylinder 12 rotatably mounted in a crusher outer casing 1 via a cylinder rotation base 12b is provided. , The pivotal base 4 of the movable jaw main body 3 is set at a substantially central position between the cylinder rotating base 12b and the fixed jaw main body 2, and the movable jaw main body 3 has a vertically divided large half-divided disc shape in the direction of the fixed jaw main body 2. The blade 5 is provided, and the crushing work surface 3 at the tip of the movable jaw body 3 is provided.
By using the crushed natural crushed stone crusher in which the dimensions of the a side and the blade tip position of the vertical split large blade 5 are formed to be long, even a large crushed natural stone W can be gripped very easily.

The above effects will be described in detail. The movable jaw body 3 which allows the cylinder 12 to freely rotate in the crusher casing 1 via the cylinder rotation base portion 12b, and which opens and closes on the fixed jaw body 2.
Since the pivot support base 4 is provided substantially at the center of the cylinder rotation base 12b and the fixed jaw body 2, the distance between the base of the fixed jaw body 2 and the pivot support base 4 of the movable jaw body 3 is increased. Since the movable jaw body 3 is opened and closed at a position away from the fixed jaw body 2 because it is a thing, even if it is an extremely large crushed stone block W, it is held between the fixed jaw body 2 and the movable jaw body 3. Since the tip of the large vertical blade 5 can be inserted from the crushing work surface 3a of the movable jaw body 3, the crushed natural stone lump W can be reliably crushed.

Further, since the pivot support base 4 of the movable jaw main body 3 is provided at the substantially central portion between the cylinder rotation base 12b and the fixed jaw main body 2, especially the longitudinal direction of the movable jaw main body 3 becomes long. It does not need to be formed into a regular length, and a normal length is sufficient.

On the other hand, if a type in which the pivotal support portion PO3 of the conventional type movable jaw body O3 is provided at the base of the crusher outer casing 1 and the fixed jaw body 2, a large crushed natural stone block W will be obtained.
In order to crush, the conventional type movable jaw body O3 becomes elongated in the longitudinal direction, and not only such an elongated movable jaw body O3 has to be specially manufactured, but also the elongated movable jaw body O3. O3 holds the crushed natural stone lump W at a large angle with respect to the fixed jaw body 2, and the movable jaw body 3 is closed toward the fixed jaw body 2 side for crushing work.
The natural crushed stone mass W is pushed out from the fixed jaw body 2.

In order to avoid such inconvenience, the present invention has a structure in which the movable jaw main body 3 is opened and closed in advance above the fixed jaw main body 2, so that a large crushed natural lump of stone W is fixed to the fixed jaw main body 2. Compared with the conventional type, the angle between the movable jaw body 3 and the fixed jaw body 2 in the state of being held by the movable jaw body 3 can be made significantly smaller, and the natural crushed stone mass W can be fixed to the fixed jaw body 2 and the movable jaw body 3. There is also an advantage that it can be prevented from being extruded without being crushed.

Further, as shown in FIG. 21, the distance Y from the pivotal support portion P3 (in the pivotal support portion 4) of the movable jaw main body 3 to the vertical split large blade 5 is the pivot point of the conventional type movable jaw main body O3. It can be set to a value smaller than the distance YO between the branch PO3 and the large vertical blade 5, so that the crushing force F by the movable jaw body 3 of the present invention can be reduced to the conventional type movable jaw body O.
It can be larger than that of 3.

[0067]

[Brief description of drawings]

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

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

FIG. 3 is a perspective view of a large vertical blade at the tip of the movable jaw body.

FIG. 4 is a side view of a large vertical blade at the tip of the movable jaw body.

FIG. 5 is a perspective view of a vertically dividing large blade of another embodiment at the tip of the movable jaw body.

FIG. 6 is a side view of a large vertical blade of another embodiment at the tip of the movable jaw body.

[Fig. 7] Schematic diagram of crushing natural crushed stone lumps with a natural crushed stone crusher

FIG. 8 is a schematic view showing a state in which a crushed natural crushed stone is crushed by a crushed natural crushed stone crusher.

FIG. 9 is a schematic view showing a comparison between the present invention and a conventional type of a large vertical cutting blade which is difficult to crush a natural crushed stone block.

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

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

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. 14A is an enlarged vertical sectional front view of the main part of the auxiliary body, and FIG. 14B is an enlarged vertical sectional side view of the main part of the 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 a fixed jaw body is provided with an attached portion.

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

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

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

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

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

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

FIG. 23 is a schematic diagram showing a state in which a crushed natural crushed stone mass is crushed by a crushed natural crushed stone crusher.

FIG. 24 is a schematic diagram showing a state where one natural crushed stone lump is crushed by a natural crushed stone crusher.

FIG. 25 is a schematic view of a state in which a crushed natural crushed stone mass is crushed into a plurality of small lumps by a crushed natural crushed stone crusher.

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

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

FIG. 28 is a schematic view showing a state during crushing work of a conventional crushed natural stone lump.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Crusher outer casing 2 ... Fixed jaw main body 3 ... Movable jaw main body 3a ... Crushing work surface 4 ... Pivot support base 5 ... Vertical large blade 6 ... Pedestal dn ... Flat chevron concave surface 12 ... Cylinder 12b ... Cylinder rotation base

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Isamu Nagayoshi, 314, Chikusacho, Hanamigawa-ku, Chiba City, Sakado Works Co., Ltd. (72) Inventor, Tabiko Nagase, 314, Chikusacho, Hanamigawa-ku, Chiba City, Sakado Works ( 72) Inventor Hiroo Koyanagi, 314 Chikusacho, Hanamigawa-ku, Chiba City, Sakado Co., Ltd. (72) Inventor, Yuji Nagasawa, 314, Chikusacho, Hanamigawa-ku, Chiba City, Sakado Co., Ltd. (72) Inventor, Toshiyuki Kuno, Hanamigawa-ku, Chiba City 314 Chikusacho Sakado Factory Co., Ltd. (72) Masayuki Otsuka 314 Chikusacho Hanamigawa-ku, Chiba City Sakado Factory Co., Ltd. (72) Inventor Takamitsu Ito 314 Chikusacho Hanamigawa-ku Chiba City Sakado Factory ( 72) Inventor, Yoichiro Kuwahara, Sakado Manufacturing Co., Ltd., 314, Chikusa-cho, Hanamigawa-ku, Chiba (72) Inventor Masayuki Asai Chiba Hanamigawa-ku Chikusa-cho, 314 address, Inc. Sakado machine tool plant

Claims (4)

[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 natural crushed stone crusher, characterized in that a large vertical blade is provided, and the crushing work surface side of the tip of the movable jaw body and the blade tip position of the vertical large blade are made long. 2. The vertically dividing large blade is provided with a vertically dividing large blade in the shape of a half-divided disc in the direction of the fixed jaw from the tip of the movable jaw body through the pedestal, and is provided on the crushing work surface side of the tip of the movable jaw body. The natural crushed stone crushing machine according to claim 1, wherein the length of the vertically divided large blade and the position of the cutting edge are formed to be long. 3. A fixed jaw main body is formed in the lower part of the crusher outer casing, and a movable jaw main body is provided for opening and closing the fixed jaw main body. By providing a vertical dividing large blade, the dimensions of the crushing work surface side of the movable jaw body tip and the blade tip position of the vertical dividing large blade are formed to be long,
A natural crushed stone crushing machine characterized in that the crushing work side surface in the longitudinal direction of the movable jaw body is formed into a flat mountain-shaped concave surface. 4. A movable jaw for forming a fixed jaw main body on a lower portion of an outer casing of the crusher, and for opening and closing the fixed jaw main body by a cylinder rotatably mounted in the outer casing of the crusher via a cylinder rotation base. A main body is provided, the pivotal base of the movable jaw body is set at the center of the cylinder rotation base and the fixed jaw body, and a half-divided ball-shaped vertical blade is provided from the tip of the movable jaw body toward the fixed jaw body. A natural crushed stone crusher, characterized in that the crushing work surface side of the tip of the movable jaw body and the blade tip position of the vertical split large blade are formed to be long.