JPH0737745B2 - Crushing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to be used as a main part for dismantling reinforced concrete or for peeling and crushing concrete roadbeds, and concrete walls, floors, ceilings, columns, roadbeds, etc. The present invention relates to a crusher that can prevent fragments from remaining inside when crushing or peeling a roadbed, and that has excellent crushing efficiency.

[0002]

2. Description of the Related Art Recently, a crusher used as a main part for disintegrating and crushing structures (buildings, etc.) made of concrete or peeling and crushing roadbeds made of concrete or asphalt has no workability, noise, and noise. It is actively researched and developed for the purpose of vibration.

In this type, a movable jaw body having a crushing blade and a fixed jaw body are configured to be openable and closable, and the fixed jaw body and the fixed jaw body can be grasped while gripping concrete walls, floors, ceilings, columns, roadbeds, and the like. It is crushed by pinching with the upper and lower blades of the movable jaw body.

[0004]

As described above, the object to be crushed is crushed by the upper and lower blades of the fixed jaw body and the movable jaw body, but the crushed object is crushed into a plurality of pieces. In the case of small lumps, the small lumps may remain inside the crusher, and leaving these inside may cause the crusher itself to malfunction, and these small lumps must be promptly removed. Although it does not happen, the removal work involved shaking the crusher itself back and forth and left and right, which was troublesome and resulted in a decrease in work efficiency.

Further, in the crusher, when crushing an object to be crushed, the fixed jaw body and the movable jaw body sandwich and crush the object to be crushed, but at the tip of the fixed jaw body and the movable jaw body. When there is an object to be crushed, when the object to be crushed is located at a position biased to one end in the width direction of the fixed jaw body or the movable jaw body, the object to be crushed is pinched and crushed by the movable jaw body. Due to the reaction force received more, an inconvenient load such as a torsional load is applied to the movable jaw body, resulting in shortening the life of the crusher itself.

[0006]

Therefore, the inventors of the present invention have made extensive studies in order to solve the above-mentioned problems, and as a result, according to the invention, a fixed jaw main body is projectingly formed on the lower end of the outer casing of the crusher, and the fixed jaw is formed. The movable jaw body corresponding to the body is pivotally supported on the outer casing of the crusher.
On the tip of the lower surface of the movable jaw body and in the center of the width direction.
Tip pressing blade that becomes the longitudinal direction along the width direction of the movable jaw body
And the tip pressing blade at the tip of the fixed jaw body.
The tip crushing surface corresponding to is formed at the tip of the fixed jaw body.
By using the crusher or the like , the small lumps of the crushed object that have been crushed inside the crusher do not remain inside the crusher, which can speed up the crushing operation of the crushed object. It has solved the problem and achieved its purpose.

[0007]

The present invention will be described below with reference to the drawings. Reference numeral 1 is an outer casing of the crusher, and as shown in FIGS. 1 and 2,
It has an inverted L shape and is formed in a hollow shape, and an opening 2 is formed at a front side position thereof. The fixed jaw body 3 is formed so as to protrude outward from the lower end of the crusher outer casing 1 on the opening 2 side. It is provided integrally.

The fixed jaw body 3 has a substantially human-legged outer shape and is formed of a steel plate in a box shape. The upper surface (the surface facing the movable jaw body 4 described later) has a crushed object receiving surface 3a. And is longitudinally supported so as to be orthogonal to the longitudinal direction of the crushed object receiving surface 3a (direction equal to the direction from the tip of the fixed jaw body 3 to the portion fixed to the crusher outer casing 1). Blade 3
b, 3b, ... Are formed.

The crushed object receiving surface 3a of the fixed jaw body 3 is
The object to be crushed C such as a concrete block is crushed while being held together with the movable jaw body 4.

The crushed object receiving surface 3a is formed in a generally flat shape, and vertical supporting blades 3b, 3b, ... Which are orthogonal to the longitudinal direction of the fixed jaw body 3 are formed at appropriate intervals. ,
As shown in FIGS. 2 and 3, the vertical support blades 3b, 3b, ... Are formed so as to slightly project upward at the upper surface of the crushed object receiving surface 3a.

The crushed object receiving surface 3a has a substantially flat surface, or, as shown in FIG. 8, an appropriate cross section at a portion orthogonal to the longitudinal direction is formed in an arcuate mountain shape. Alternatively, as shown in FIG. 9, there is an embodiment in which the cross section is formed into a flat triangular mountain shape.

The crushed object receiving surface 3a has a substantially flat shape. As shown in FIGS. 2 and 3, the crushed object receiving surface 3a is provided at both ends in the width direction of the crushed object receiving surface 3a. It means that there is no rising edge.

As described above, the crushed object receiving surface 3a has a substantially flat shape, and the crushed object C is crushed on the crushed object receiving surface 3a, which becomes small clumps c, c, .... Sometimes
As shown in FIG. 5, FIG. 8, FIG. 9, etc., the small pieces c, c, ... Can be easily dropped to the outside from both ends in the width direction of the crushed object receiving surface 3a.

That is, the crushed object receiving surface 3a of the fixed jaw body 3 has a flat or mountain-shaped surface and has no rising edges on both ends in the width direction.
In the above, the crushed object C is crushed to form small pieces c, c, ... Which do not remain on the fixed jaw body 3.

A tip crushing surface 3c having a flat surface is provided at the tip of the fixed jaw body 3, and is fixed together with a tip pressing blade 10 (provided at the tip of the movable jaw body 4) described later. The object C to be crushed is crushed by the tip of the jaw body 3 and the tip of the movable jaw body 4.

The plurality of vertical support blades 3b, 3b, ... Provided on the crushed object receiving surface 3a are formed from one end in the width direction of the crushed object receiving surface 3a to the other end, and the cross section thereof is It is often formed in a trapezoidal shape.

Reference numeral 4 is a movable jaw body, and the base 4
a is inserted into the crusher outer casing 1 through the opening 2 and is axially supported, and is opened and closed corresponding to the fixed jaw body 3. Specifically, the base 4a of the movable jaw body 4
Is rotatably supported by a shaft rod 5 provided at the lower end of the opening 2 of the crusher outer casing 1, and is configured to swing on the vertical surface of the fixed jaw body 3.

The movable jaw body 4 has a substantially rectangular cross section and is hollow inside. The tip of the movable jaw body 4 (opposite to the base portion 4a) is slightly bulged upward, and a movable jaw tip rod 6 is provided.

The tip of the piston rod 7a of the hydraulic cylinder 7 for opening and closing is rotatably supported by the movable jaw tip shaft rod 6, and the middle portion of the cylinder body 7b in the longitudinal direction is the crusher casing 1.
Is supported by.

On the lower surface side of the movable jaw main body 4 (the surface facing the fixed jaw main body 3), a plurality of lateral dividing blades 8, 8, ... Are provided rearward at predetermined intervals on both sides in the width direction thereof. Has been. Further, the tip of the movable jaw body 4 and an appropriate interval are provided between the transverse dividing blades 8, 8, ... Formed in the widthwise direction of the movable jaw body 4 and in the width direction. At the rear position, a large vertical cutting blade 9 halving a large-diameter abacus is formed along the swinging surface of the movable jaw body 4 (the cutting surface matches the swinging plane of the movable jaw body 4). ) It is provided.

A through hole 3d is formed between the crushed object receiving surface 3a and the tip crushing surface 3c of the fixed jaw body 3 and at a substantially central portion in the width direction of the crushed object receiving surface 3a. , The tip portion of the vertical dividing large blade 9 can be loosely inserted.
As shown in FIG. 3, the object C to be crushed is crushed by the large vertical blades 9, 9, ..., to form small clumps c, c, ..., and the small clumps c, c ,. It is configured to be able to.

As described above, the tip pressing blade 10 is formed at the tip of the movable jaw body 4, and the tip pressing blade 1 is provided.
In No. 0, it is formed at the central portion in the width direction of the tip portion of the movable jaw body 4 along the width direction of the movable jaw body 4 in the shape of an axial rod having a square cross section.

On the base side of each of the movable jaw main body 4 and the fixed jaw main body 3, the fixed jaw main body 3 has a fixed cutting blade 11a for cutting rebar, and the movable jaw main body 4 has a fixed cutting blade 11a for cutting rebar. When the movable cutting blades 11b are fixed to each other and the fixed jaw body 3 and the movable jaw body 4 are closed, the movable cutting blades 11b are closed.
And the fixed cutting blade 11a have a shearing action.

Reference numeral C is an object to be crushed, and the object C to be crushed is finely crushed by the fixed jaw main body 3 and the movable jaw main body 4 into small pieces c, c ,.

[0025]

According to the invention of claim 1 , the fixed jaw main body 3 is projectingly formed on the lower end of the crusher outer casing 1, and the movable jaw main body 4 corresponding to the fixed jaw main body 3 is attached to the crusher outer casing. 1, a tip pressing blade 10 is formed in the longitudinal direction along the width direction of the movable jaw body 4 at the lower surface tip side of the movable jaw body 4 and at the central portion in the width direction, and the tip portion of the fixed jaw body 3 is formed. In the crusher, the tip crushing surface 3c corresponding to the tip pressing blade 10 is formed at the tip of the fixed jaw body 3,
First, it is possible to prevent the movable jaw body 4 from being damaged by the reaction force received from the crushed object C to be crushed, and the second
Moreover, when the crushed object C is crushed at the tip portions of the fixed jaw main body 3 and the movable jaw main body 4, the crushed object C can be crushed most efficiently.

To explain these effects in detail, the tip pressing blade 10 is formed at the tip of the lower surface of the movable jaw body 4 and at the central portion in the width direction so as to extend in the longitudinal direction along the width direction of the movable jaw body 4. Further, since the tip crushing surface 3c is formed at the tip portion of the fixed jaw body 3 to correspond to the tip pressing blade 10, the crushed object C is crushed at the tip portion of the movable jaw body 4. Sometimes, the crushed object C is crushed between the tip pressing blade 10 and the tip crushing surface 3c.

Therefore, as shown in FIG. 10, when the crushed object C is crushed at the tip, the tip pressing blade 10 is always used.
Is involved in the crushing work, the crushing force F applied to the crushed object C by the fixed jaw body 3 and the movable jaw body 4 is
The reaction force R received from the crushed object C is, as shown in FIG.
Through the tip pressing blade 10, it is possible to prevent a bending moment, a twisting moment, or the like from being applied to the center position in the width direction at the tip portion of the movable jaw body 4 in the width direction of the movable jaw body 4.

Further, in addition, even if the object to be crushed C is at a position slightly apart from the center position in the width direction of the tip crushing surface 3c of the fixed jaw body 3, as shown in FIG. Since the longitudinal direction is formed along the width direction of the movable jaw body 4, there is also an advantage that the crushed object C can be reliably pressed and crushed.

When the object to be crushed C is crushed at the tip portions of the fixed jaw body 3 and the movable jaw body 4, the object to be crushed C
Is often concentrated at the tip of the fixed jaw body 3 and substantially in the center in the width direction, the tip pressing blade 10 provided substantially at the center in the width direction of the tip of the movable jaw body 4 is substantially The crushing load can be applied intensively to the central part, and the crushed object C
The crushing work efficiency can be improved.

Next, in the invention of claim 2, the crusher
A fixed jaw body 3 is formed to project from the lower end of the outer casing 1, and the fixed jaw body 3 is formed.
3 The upper surface of the crushed object receiving surface 3a is a flat shape.
And the longitudinal direction of the fixed jaw body 3 on the crushed object receiving surface 3a.
A plurality of vertical support blades 3b so that they are substantially orthogonal to each other.
The fixed jaw body 3 has a flat shape at the tip thereof.
The tip crushing surface 3c is formed, and it is possible to correspond to the fixed jaw body 3.
The movable jaw body 4 is pivotally supported on the crusher outer casing 1, and its movable jaw
In the center of the lower surface tip side of the body 4, in the width direction of the movable jaw body 4.
Along the tip crushing surface 3c along the tip of the tip pressing blade
Since the crusher is formed by forming the crushing object 10, the crushable object C is held between the fixed jaw body 3 and the movable jaw body 4 regardless of the position of the crushable object C on the fixed jaw body 3. It can be crushed.

That is, vertical support blades 3b, 3b, ... Are formed on the crushed object receiving surface 3a of the fixed jaw body 3, and the tip pressing blade 10 is fixed at the tip of the movable jaw body 4 again. Since the tip crushing surface 3c corresponding to the tip pressing blade 10 is provided at the tip portion of the jaw body 3, even if the crushed object C is present at any position on the upper surface of the fixed jaw body 3, the crushing object C is crushed. Has the advantage of being made uniform.

[Brief description of drawings]

FIG. 1 is a vertical side view of the present invention.

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

FIG. 3 is a plan perspective view of an essential part of the present invention.

4 and 5 are schematic vertical sectional front views showing a state in which the object to be crushed is crushed by the fixed jaw body and the movable jaw body.

6 and 7 are schematic vertical sectional front views showing a state in which the object to be crushed is crushed by the tip portions of the fixed jaw body and the movable jaw body.

8 and 9 are vertical sectional front views of the fixed jaw body at an appropriate position in the longitudinal direction, showing an example of the shape of the crushed object receiving surface of the fixed jaw body.

FIG. 10 is an enlarged view of the main part where the object to be crushed is crushed at the tips of the fixed jaw body and the movable jaw body.

FIG. 11 is a vertical sectional front view of crushing an object to be crushed at the tip portions of the fixed jaw body and the movable jaw body.

[Explanation of symbols]

 1 ... Crusher outer casing 3 ... Fixed jaw body 3a ... Crushed object receiving surface 3b ... Vertical support blade 3c ... Tip crushing surface 4 ... Movable jaw body 10 ... Tip pressing blade

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Toshiyuki Kuno, 314 Chikusacho, Chiba City, Sakado Machinery Co., Ltd. (72) Inventor, Yoichiro Kuwahara, 314, Chikusacho, Chiba City, Inc. (72) Inventor, Nagase Tadiko, 314 Chikusa-cho, Chiba-shi, Sakado Machinery Co., Ltd. (72) Inventor Masayuki Asai, 314, Chikusa-machi, Chiba-shi (72) Inventor, Tomoaki Yamada 314, Chikusa-machi, Chiba-shi, Sakado Machinery Co., Ltd. (56) References Japanese Unexamined Patent Publication No. 59-187976 (JP, A) Actual No. 58-17920 (JP, U)

Claims (2)

[Claims] 1. A crusher outer casing having a fixed jaw body projectingly formed on a lower end of the crusher outer casing, and a movable jaw body corresponding to the fixed jaw body is pivotally supported on the crusher outer casing, and a lower surface tip side and a width of the movable jaw body. Form a tip pressing blade that becomes the longitudinal direction along the width direction of the movable jaw body at the center of the direction, and at the tip portion of the fixed jaw body, a tip crushing surface corresponding to the tip pressing blade is provided at the tip portion of the fixed jaw body. A crusher characterized by being formed into. 2. A crushing machine outer casing has a fixed jaw main body projectingly formed at a lower end thereof, and an upper surface of the fixed jaw main body forms a crushable object receiving surface having a substantially flat shape, and the crushable object receiving surface is formed on the crushable object receiving surface. A plurality of vertical support blades are formed at appropriate intervals so as to be substantially orthogonal to the longitudinal direction of the fixed jaw body, and a flat tip crushing surface is formed at the tip of the fixed jaw body, corresponding to the fixed jaw body The movable jaw body is pivotally supported on the outer casing of the crusher, and a tip pressing blade is formed at a position corresponding to the tip crushing surface along the width direction of the movable jaw body at the central portion of the lower jaw tip side of the movable jaw body. A crusher characterized by