JP3002609B2 - 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 crusher which can crush natural crushed rock very efficiently.

[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.

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 is operated to perform the crushing operation by applying the hydraulic crushed stone breaker C to the natural crushed stone mass W. Yes, from a large number of piled natural crushed stone blocks W, they are scraped out one by one and moved to flat ground, etc., and furthermore, the natural crushed stone blocks W are brought into a stable state suitable for crushing. The natural crushed stone block W is finely crushed into a large number of small blocks w, w,.

Here, from the pile of natural crushed stones W,
When scraping them one by one, another construction vehicle M
Attachment suitable for scraping out the natural crushed stone mass W is attached to the boom, and the natural crushed stone mass W is taken out. Therefore, a plurality of construction vehicles M are required together with the construction vehicle M equipped with the hydraulic crushed stone breaker C. As described above, a large number of dedicated construction vehicles M are required for the crushing operation of the natural crushed stone block W, and the cost is increased.

Further, during the crushing operation of the natural crushed stone mass W, the direction of the chisel c is inevitably shifted as the chisel penetrates, and 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.

[0006]

Conventionally, the 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 with a hydraulic crushed rock breaker C is as follows. There is a drawback, and the crusher A of the present invention is used instead of the hydraulic crusher breaker C.

The disadvantage of the hydraulic crushed stone breaker C is that it is necessary to first set the natural crushed stone mass to a stable state and then set the chisel c of the hydraulic crushed stone mass breaker C to the natural crushed stone mass W. On the other hand, a large number of crushed natural crushed stone blocks W, W, ...
Since it is in an extremely irregular and unstable state, it is quite troublesome to find a natural crushed stone mass W in the crushed rock mass. When the crushing operation of the natural crushed stone mass W is started, there may be a case where the chisel c is hit in the inside of the hydraulic crushed stone breaker C, and there is a serious disadvantage that the hydraulic crushed stone breaker C is broken very early.

In order to prevent the above-mentioned damage to the hydraulic crushed stone breaker C at an early stage, first, each of the piled natural crushed stone blocks W is taken out one by one, scraped out onto a stable flat ground or the like, and further flattened. After the natural crushed stone mass W is adjusted to the most stable state on the ground, the crushed work of the natural crushed stone mass W must be performed by the hydraulic crushed stone breaker C.

In order to take out the natural crushed stone blocks W one by one from the piled point, an attachment suitable for scraping out the natural crushed stone blocks W is attached to the end of the boom separately from the construction vehicle M equipped with the hydraulic crushed stone breaker C. A construction vehicle M is required, a plurality of construction vehicles M must be prepared, and they must be carried to the site, and a hydraulic crusher breaker C
In addition, there are problems such as the need for a plurality of workers for extracting the natural crushed stone block W, which leads to an increase in cost, work time, and the like.

[0010] In the crushing of the natural crushed stone mass W by the hydraulic crushed stone breaker C, the chisel c of the hydraulic crushed stone crusher C contacts the natural crushed stone mass W as shown in FIG. Working conditions are severely restricted, such as contacting the surface almost vertically, and when these working conditions are not provided, the natural crushed stone mass W cannot be efficiently crushed, resulting in extremely inefficient crushing. One natural crushed stone mass W must be crushed many times, which increases the working time and increases the burden on the worker.

Further, even when the chisel c of the hydraulic crusher breaker C is at an appropriate position with respect to the natural crushed stone mass W at the start of the crushing operation, the direction of the chisel c is necessarily shifted according to the chisel penetration during the crushing operation. The natural crushed stone mass W may move due to the vibration and impact of the hydraulic crushed stone breaker C, and the chisel c may be in an inappropriate state with respect to the natural crushed stone mass W. The operation of the hydraulic crusher breaker C was extremely difficult and troublesome, and a skilled worker was required for that.

Further, at the time of crushing the natural crushed stone mass W,
The life of the breaker C and the construction vehicle becomes extremely short due to the impact force of the work. Further, as shown in FIG. 16, during the crushing operation, a large number of small lumps w, w,... Scattered over a wide area and were often dangerous for the operator. , Not only the crushing efficiency was poor, but also noise pollution occurred.

[0013]

The inventor of the present invention has conducted intensive studies to solve the above-mentioned problems. As a result, the present invention provides a crusher outer casing having a fixed jaw main body and a movable jaw main body, and The movable jaw body and the movable jaw body can be crushed by opening and closing work, and the width of the fixed jaw body is appropriately enlarged, and the tip of the fixed jaw body is formed longer than the tip position of the movable jaw body. The crushing side of the natural crushed stone crushing device is provided with a detachable auxiliary body having a flat work section opposed to the movable jaw body. At the same time, the crushed natural crushed stone can be crushed very safely, and the durability, the maintenance and the manageability can be made extremely excellent.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. A crusher A for a natural crushed stone block W according to the present invention comprises, as shown in FIGS. The crusher outer casing 1 is composed of a main body 3 and a movable jaw main body 4 and an auxiliary body B detachable from the fixed jaw main body 3. Is formed in a hollow shape, and an opening 2 is provided at a front position thereof (on the right side in FIG. 1), and the fixed jaw main body 3 projects outward at a lower end of the crusher outer casing 1 on the opening 2 side. Are provided integrally.

The fixed jaw main body 3 is, as shown in FIG.
The movable jaw body 4 is formed to be long forward, specifically, the length of the fixed jaw body 3 protruding further forward than the movable jaw body 4 when the movable jaw body 4 is closed on the fixed jaw body 3. .. Can be efficiently extruded when a large number of natural crushed stone blocks W, W,.

Further, in the width direction of the fixed jaw main body 3,
The fixed jaw main body 3 is formed to have the same width as the width direction of the crusher outer casing 1. Specifically, the fixed jaw main body 3 is formed in the width direction. When the crusher is formed wider, it is formed to be slightly wider than the width of the outer casing 1 of the crusher.

As described above, the fixed jaw body 3 is formed to be long in front of the fixed jaw body 3 and wide in the width direction, thereby increasing the area of the fixed jaw body 3.
As shown in the figure, a large number of natural crushed stone masses W, W,
... When a more appropriate one natural crushed stone mass W is scraped out, a large amount of natural crushed stone mass W can be simultaneously scraped out, or even if it is a large natural crushed stone mass W, the work efficiency can be improved. be able to.

The movable jaw body 4 has a base 4a inserted into the inside of the crusher outer casing 1 through the opening 2 as shown in FIGS. It is configured to open and close.

Specifically, the base 4a of the movable jaw main body 4
Is supported by a shaft 5 provided at the lower end of the opening 2 of the crusher outer casing 1 and swings on a vertical surface of the fixed jaw main body 3. The movable jaw main body 4 has a substantially cross section. The inside of the movable jaw body 4 is formed in a hollow shape and has a hollow end.
On the other hand, the movable jaw tip shaft 6 is slightly bulged upward, and the movable jaw tip shaft 6 is provided with the tip of the piston rod 7a of the opening / closing hydraulic cylinder 7 as shown in FIG. The middle portion of the cylinder body 7b in the longitudinal direction is supported by the outer casing 1 of the crusher.

The lower side of the movable jaw body 4 (the fixed jaw body 3)
1 and 2, a plurality of horizontal split blades 4b, 4b,... Are provided on the both sides in the width direction at predetermined intervals behind.

A detachable auxiliary body B is mounted on the fixed jaw main body 3. When the natural crushed stone mass W is actually crushed by the crusher A of the present invention, the auxiliary body B is movable with respect to the auxiliary body B. The movable chin body 4 is closed on the auxiliary body B with the natural crushed stone block W interposed between the jaw body 4 and the natural crushed stone block W to be crushed.

The auxiliary body B is composed of a working part 8 and a mounting part 9 as shown in FIGS. 3 to 5, and the working part 8 and the mounting part 9 have various embodiments. In the first embodiment, as shown in FIG. 3, a mounting portion 9 is integrally formed on the back side of a flat work portion 8, and the mounting portion 9 forms a dovetail tenon 9a.

The fixed jaw main body 3 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 of the auxiliary body B is locked in the dovetail groove 10a of the attached portion 10, and the auxiliary body B is fixed on the fixed jaw main body 3, and FIG.
As shown in (b), the end of the auxiliary body B is fixed by the fixing tool 12 or the end of the auxiliary body B is fixed to the fixing plate 1.
The fixing plates 11, 11 are fixed to the fixed jaw main body 3 by welding means or the like (see FIG. 5).

FIG. 6 shows a second embodiment of the auxiliary body B.
As shown in FIGS. 7A and 7B and FIGS.
Is formed with a concave tapered mating portion 9b which becomes a flat concave surface on the mounting surface side with the fixed jaw main body 3, and the concave tapered mating portion 9b has a symmetrical taper as shown in FIG. Opposite inner wall surfaces 9b1, 9b1 are formed, and the dovetail tenon 9a is formed at the center of the inner wall surfaces 9b1, 9b1.

Further, in the mounting portion 10, a convex tapered mating portion 10b having a flat raised shape is formed, and the convex tapered mating portion 10b is opposed as shown in FIG. 6 (b). Outer wall surfaces 10b1 and 10b1 are formed, and the outer wall surfaces 10b1 and 10b1 are also formed into a bilaterally symmetric tapered shape like the inner wall surfaces 9b1 and 9b1 of the concave taper mating portion 9b, and the inner wall surfaces 9b1 and 9b1 and the outer wall surface are formed. 1
The taper gradients of 0b1 and 10b1 coincide with each other, and when they are brought into contact, an accurate and reliable abutment state is obtained.

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 and are in contact with each other. When this is done, the two tapered surfaces match (see FIG. 7).

Further, a concave portion 10c is formed continuously with the dovetail groove 10a along the front and rear direction of the dovetail groove 10a of the mounted portion 10, and the dovetail tena 9a of the mounting portion 9 is loosely inserted into the concave portion 10c. The dove mortise 9a can be freely moved into the dovetail groove 10a by sliding freely from the concave portion 10c.

With the above structure, the auxiliary body B is connected to the mounting portion 10.
In order to attach to the fixed jaw body 3 through the fin, the dovetail tena 9a of the mounting portion 9 is first loosely inserted into the concave portion 10c of the mounted portion 10, and then the auxiliary body B is moved along the fixed jaw body 3 Insert the dovetail tenon 9a into the dovetail groove 10a while sliding, and slide until the inner wall surfaces 9b1 and 9b1 of the concave taper mating portion 9b contact the outer wall surfaces 10b1 and 10b1 of the convex taper mating portion 10b. It is fixed by fixing plates 11 and 11 (see FIG. 10).

In the third embodiment of the auxiliary body B, FIG.
As shown in (a), a screw member 9c such as a bolt is used as the mounting portion 9 of the auxiliary body B, and the mounting portion 10 is formed by using the auxiliary body B as the inner screw portion 10d of the fixed jaw main body 3 by the screw body 9c.
And screwed in.

In the fourth embodiment of the auxiliary body B, FIG.
As shown in (b), the attached portion 10 is formed as an inverted T-shaped groove 10e inside the surface of the fixed jaw main body 3, and the attaching portion 9 corresponding to the attached portion 10 is A locking block 9 formed as a separate material from the working portion 8 and having an internal thread engageable with the inverted T-shaped groove 10e.
d, the locking block 9d is mounted in the inverted T-shaped groove 10e, and the mounting portion 9 and the working portion 8 are connected to each other through bolts that are screwed into the internal screws of the locking block 9d. 10.

There is an embodiment in which not only one auxiliary body B but a plurality of auxiliary bodies B are prepared and fixed on the fixed jaw main body 3. That is, it is mounted on the side that meshes with the movable jaw main body 4,
If necessary, it may be mounted on the back side of the fixed jaw body 3, that is, on the side opposite to the crushing work side.

Next, the tip of the fixed jaw body 3 is
There is an embodiment in which the front jaw N is detachably mounted. The front jaw N includes a jaw portion 13 and a connected portion 14, and the fixed jaw main body 3 is provided with a connecting portion 15 which is connected by a connecting tool 16. It is fixed.

The connecting portion 15 is, as shown in FIG.
The connecting portion 15 has a protruding shape, the connected portion 14 has a concave shape, the connecting portion 15 is inserted into the connected portion 14, and a connecting tool 16 such as a cotter is connected to the connecting portion 15 and the connected portion 14. Can be locked in a penetrating manner and connected and fixed (see FIG. 18).

The crusher A of the present invention is mounted on the tip of the work boom b of the construction vehicle M, and is operated by an operator from the cab r. The crusher A crushes the natural crushed stone mass W. In the work, first, a large number of natural crushed stone blocks W, which were blasted with a blasting material such as dynamite,
W,..., And the crusher A scrapes out the individual natural crushed stone blocks W from the piled natural crushed stone blocks W, or takes out one by one from the piled natural crushed stone blocks W, W, W,. The natural crushed stone mass W is further crushed into small lumps w, w,.

[0035]

According to the first aspect of the present invention, a fixed jaw main body 3 and a movable jaw main body 4 are provided in the crusher outer casing 1, and crushing can be performed by opening and closing the fixed jaw main body 3 and the movable jaw main body 4. In addition, the width of the fixed jaw body 3 is appropriately enlarged,
Of the movable jaw body 4 is formed longer than the distal end position of the movable jaw body 4, and an auxiliary body B having a flat work portion 8 opposed to the movable jaw body 4 is detachably provided on the crushing side of the fixed jaw body 3. By using a crushed stone crushing apparatus, firstly, it can be made extremely durable, secondly, it can crush natural crushed stone very efficiently, and thirdly, it is very easy and skilled And 4thly, there are various effects such as providing an extremely safe and favorable working environment for workers.

The above effects will be described in detail with reference to FIGS.
As shown in (2), the auxiliary body B is detachably mounted on the crushing side of the fixed jaw main body 3, so that the fixed jaw main body 3 is directly
Instead of crushing the natural crushed stone mass W, placing the natural crushed stone mass W on the auxiliary body B provided on the fixed jaw main body 3, closing the movable jaw main body 4, and crushing the natural crushed stone mass W The impact of the fixed jaw main body 3 can be reduced by the auxiliary body B. Therefore, even if the fixed jaw main body 3 receives a reaction force from the natural crushed stone mass W when the natural crushed stone mass W is crushed, the fixed jaw main body 3 does not suffer large damage.

Further, since the auxiliary body B is configured to be detachable from the fixed jaw main body 3, even if the surface of the auxiliary body B is damaged by the crushing of the natural crushed stone mass W, the crushing operation cannot be performed. By replacing the auxiliary body B with a new one, it is possible to immediately start the crushing operation and improve the working efficiency. Further, the fixed jaw main body 3 hardly receives any damage in the crushing operation of the natural crushed stone mass W, so that the life of the crusher A is extremely long, which is economical.

Next, in the crushing operation using the conventional hydraulic crushed stone breaker C, the rocky mountain is blasted with a blasting material such as dynamite to crush many piled natural crushed stone blocks W, W,. Previously, one natural crushed stone block W can be appropriately scraped out from a large number of piled natural crushed stone blocks W, W,..., And the natural crushed stone block W such as a flat ground can be placed in an extremely stable state. The crusher A of the present invention requires the fixed jaw body 3 provided on the crusher outer casing 1 and the fixed jaw body 3. The movable jaw body 4 is configured to be openable and closable at the top, and the fixed jaw body 3 is formed wide in the width direction. Therefore, natural piles W, W,. The crushed stone mass W can be reliably scraped out,
It is very suitable for this operation, and therefore, it is necessary to separately prepare a dedicated construction vehicle for extracting one natural crushed stone block W from a large number of piled natural crushed stone blocks W, W,. Can be eliminated.

Further, a large number of crushed natural crushed stone blocks W,
The appropriate natural crushed stone mass W is taken out of the fixed jaw main body 3 and the movable jaw main body 4 so as to be taken out from W,... And the movable jaw main body 4 is closed on the fixed jaw main body 3 to crush the natural crushed stone mass W. The crushing operation can be performed very quickly, and the natural crushed stone mass W to be crushed is moved to a place where the crushed natural crushed stone mass W can be placed in a stable state, as seen in the crushing operation by the conventional hydraulic crusher breaker C, and a stable state is obtained. After that, there is no need for a troublesome work of crushing by contacting the chisel c of the hydraulic crusher breaker C, and thus there is no need to secure such a flat ground, and much time is required for setting up the crushing work. Therefore, the working efficiency can be remarkably improved.

Next, as seen in the conventional system, in the crushing operation of the natural crushed stone mass W in the hydraulic crushed stone breaker C,
Since the violent impact and vibration of the chisel c are used, the life of the breaker C and the construction vehicle is extremely short, and when the natural crushed stone W is crushed, small lumps w, w,.
Scatters over a wide area, which is extremely dangerous to the worker, and also causes the broken small w, w,. Natural crushed stone mass W with body 3 and movable jaw body 4
, The impact force is extremely small, the life of the crushing device and the construction vehicle is very long, and small pieces w, w,.
Can be made extremely small, and a safe working environment can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a sectional view of the present invention.

FIG. 3 is a perspective view of a main part of the present invention.

4A is a sectional view of a main part of the present invention, and FIG. 4B is a side view of a main part of the present invention.

FIG. 5 is a sectional view of a main part of the present invention.

FIG. 6A is a perspective view of a mounting portion. FIG. 6B is a perspective view of a mounting portion.

FIG. 7 is a plan view of an auxiliary body.

FIG. 8 is a longitudinal sectional side view of an auxiliary body.

9A is a cross-sectional view of an embodiment of an auxiliary body. FIG. 9B is a cross-sectional view of another embodiment of an auxiliary body.

FIG. 10 is a schematic view showing the operation of the present invention.

FIG. 11 is a schematic view of trying to take out an appropriate natural crushed stone from a pile of natural crushed stone.

FIG. 12 is a schematic view of a natural crushed stone mass taken out of a pile of natural crushed stone masses.

FIG. 13 is a schematic view of trying to break a natural crushed stone mass.

FIG. 14 is a schematic diagram of crushing a natural crushed stone mass into small lumps.

FIG. 15 is a schematic view showing a conventional technique.

FIG. 16 is a schematic view showing a conventional technique.

FIG. 17 is a perspective view of a main part of a tip claw portion.

FIG. 18 is a cross-sectional view showing the attachment / detachment operation of the tip claw.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Crusher outer case 3 ... Fixed jaw main body 4 ... Movable jaw main body B ... Auxiliary body 8 ... Working part

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kunihiko Matsui 314 Chikusa-cho, Chiba City Inside Sakado Works (72) Inventor Isamu Nagayoshi 314 Chika-cho, Chiba City Inside Sakado Works (72) Inventor Nagase Tadahiko 314 Chikacho, Chiba City Inside Sakado Works (72) Inventor Hiroo Koyanagi 314 Chigusamachi Chiba City Inside Sakado Works Co., Ltd. Inside Sakado Works (56) References JP 3-15612 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) E04G 23/08

Claims (1)

(57) [Claims] A fixed jaw body and a movable jaw body are provided in an outer casing of a crusher, and the fixed jaw body and the movable jaw body can be crushed by opening and closing operations, and the width of the fixed jaw body is appropriately enlarged. The tip of the fixed jaw main body is formed longer than the tip end position of the movable jaw main body, and the movable jaw main body is formed on the crush side of the fixed jaw main body.
A detachable auxiliary body with opposing flat working parts
Only to become possible natural crushed stone mass crushing apparatus characterized.