JPH08103677A - Reinforced concrete crushing machine - Google Patents

Abstract

PURPOSE: To crush the waste materials by ternary fabrication in concrete production plants or the reinforced concrete generated as waste materials on construction site, etc., and to completely separate these materials to reinforcing bars and concrete. CONSTITUTION: This reinforced concrete crushing machine is provided with a crushing bed 2 to be placed with the reinforced concrete a for crushing and is horizontally provided freely movably with a moving cross-beam 3 in a horizontal direction above this crushing bed 2. A crushing blade hanging truck 6 is mounted on the rear surface side of this moving cross-beam 3 freely horizontally movably in the longitudinal direction of the cross-beam orthogonal with the moving direction of the moving cross-beam 3. The moving cross-beam 3 is horizontally provided on the front surface side at its both ends with floating preventive girders 5 for preventing the upward movement of the crushing blade hanging truck 6 and the moving cross beam 3 by the reaction at the time of crushing. Further, the crushing blade 8 for crushing the reinforced concrete a and separating the reinforced concrete to the reinforcing bars and the concrete is hung below the crushing blade hanging truck 6 freely downward pressably and freely liftably. The crushing blade hanging truck 6 is provided thereon with a driving cylinder mechanism 9 for driving the crushing blade 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete crusher for reinforced concrete for crushing waste material by tertiary processing in a concrete manufacturing factory or reinforced concrete generated as waste material at a construction site to completely separate it into reinforcement and concrete. It is about.

[0002]

2. Description of the Related Art Conventionally, in a concrete manufacturing plant, waste material by tertiary processing or concrete at a construction site may generate reinforced concrete as waste material. For example, when connecting another pipe to the side peripheral surface of a reinforced concrete pipe, the side peripheral surface portion of the reinforced concrete pipe to which another pipe is connected is
It is cut into a circular shape by a cutting machine and becomes a waste material called a hole-drilling core.

[0003] Waste material of reinforced concrete such as drill cores cannot be discarded as it is and cannot be reused, but when it is separated into reinforced concrete,
Reinforcing bars can be reused as scrap, and concrete can also be crushed into fine aggregates for reuse.

[0004]

However, in the case of crushing reinforced concrete in which the reinforcing bars are densely arranged, the reinforcing bars and the concrete adhere to each other, and the reinforcing bars and the concrete are not easily separated from each other. For this reason, it cannot be discarded, and the reinforcing steel with concrete adhered cannot be reused as scrap.If concrete also has reinforcing steel, it cannot be finely crushed and recycled as aggregate. It was not available.

The present invention was made in view of the above problems and was devised to solve the problems. The object of the present invention is to remove waste materials by tertiary processing in a concrete manufacturing factory or construction sites. An object of the present invention is to provide a concrete crusher containing reinforced concrete which is capable of crushing concrete containing reinforced steel generated as a waste material and completely separating the reinforced concrete from the reinforced concrete.

[0006]

In order to achieve the above object, the present invention provides a crushing table on which reinforced concrete containing crushing is placed, and a movable girder is horizontally movable above the crushing table. Install the crushing blade suspension carriage on the lower surface of the movable girder so that it can move horizontally in the girder length direction orthogonal to the moving direction of the moving girder, and the crushing blade suspension trolley and the moving girder move upward due to the reaction during crushing. Floating prevention girders are installed horizontally on both ends of the moving girder, and the crushing blade that separates the reinforced concrete into reinforced concrete and crushes it below the crushing blade suspension carriage can be pressed downward. And a drive cylinder mechanism for driving the crushing blade, which is hung up and down so as to be lifted and is mounted on the crushing blade suspension carriage.

[0007]

The present invention having the above-described structure operates as follows. That is, put a reinforced concrete lump on the crushing table, move the moving girder to just above the reinforced concrete lump, and also move the crushing blade suspension carriage to just above the reinforced concrete lump, The driving cylinder mechanism is driven to lower the crushing blade to contact the reinforced concrete mass, press the crushing blade to cause cracks in the reinforced concrete mass, and further pressurize it to break the internal rebar. And acts to separate concrete.
In addition, the reaction force generated on the crushing blade during crushing is received by the floating blocking girder through the crushing blade suspension carriage and moving girder, and the force applied to the crushing blade by the drive cylinder mechanism concentrates on the reinforced concrete mass without escaping to the outside. Act as you do.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described more concretely with reference to the embodiments shown in the drawings. Here, FIG. 1 is a front view of a reinforced concrete crusher, FIG. 2 is a side view of a reinforced concrete crusher, FIG. 3 is a side view of a reinforced concrete crusher, and FIGS. 4 (A) (B) (C) Is a plan view of the crushing blade,
Fig. 5 is a front view and a side view, and Fig. 5 is a partial sectional view of a crushing blade suspension carriage and a movable girder.

In the figure, a reinforced concrete crusher 1 is an apparatus for crushing a scrap material by tertiary processing in a concrete manufacturing factory or a scraped concrete a generated as a waste material at a construction site to completely separate the reinforced concrete from the reinforced concrete. Is. This reinforced concrete crusher 1
Is mainly composed of a crushing table 2, a moving girder 3, a lifting prevention girder 5, a crushing blade suspension carriage 6, a crushing blade 8, a drive cylinder mechanism 9, and the like.

In a concrete crusher 1 with a reinforcing bar, vertical frames 1a constituting the frame structure are erected vertically at the corners of a quadrangle. 4 vertical frames 1a
Are three-dimensionally connected by a horizontal frame 1b provided horizontally between them to form a vertical frame 1a and a horizontal frame 1b.
The three-dimensional frame structure of the concrete crusher 1 with a reinforcing bar is constituted by. For example, H-shaped steel is used for the vertical frame 1a and the horizontal frame 1b.

On the upper part of the concrete crusher 1 with reinforcing bars, a carrying support girder 1c is attached so as to project laterally.
A chain hoist 1d that hangs the reinforced concrete a and transports it onto the crushing table 2 is movably suspended on the transport support girder 1c. A roller is attached to the upper part of the chain hoist 1d, and the chain hoist 1d is configured to move by the roller traveling on the upper surface of the lower flange of the transport support girder 1c. For example, H-shaped steel is used for the transport support girder 1c.

Four vertical frames 1a and one horizontal frame 1b
A crushing table 2 on which a reinforced concrete a for crushing is placed is provided on the lower inner side of the reinforced concrete crushing machine 1 having a frame structure. Reinforced concrete a
Is crushed on this crushing table 2. The crushing table 2 is formed of a rectangular flat plate, and has strength, rigidity, thickness and the like enough to withstand an impact at the time of crushing. On the lower side of the crushing table 2, a plurality of cross girders 2a that support the crushing table 2 and a plurality of columns 2b that support the cross girder 2a are installed. For example, H-shaped steel is used for these cross girders 2a and columns 2b.

A moving girder 3 is laterally provided above the crushing table 2. The movable girder 3 is formed with a pair of box girders on the left and right sides in the width direction thereof with an interval in the middle. The movable girder 3 has two wheels 3a mounted on each side at the lower ends of both ends in the girder length direction. Each wheel 3a is mounted so as to roll in a direction orthogonal to the girder length direction of the movable girder 3. Therefore, the movable girder 3 is configured to horizontally move in a direction orthogonal to the girder length direction.

The wheels 3a attached to the lower portions of both ends of the movable girder 3 are laid on the upper surfaces of the supporting girders 3b which are respectively provided in the middle of the vertical frame 1a which constitutes the frame of the reinforced concrete crusher 1. It is movably mounted on the rail 3c. An L-shaped steel is used for the rail 3c, and the L-shaped steel is laid so that the L-shaped steel is turned upside down so that the outer corner side of the right angle portion faces upward. A V-shaped groove is circumferentially formed on the outer circumferential surface of the rail 3c, and the groove is fitted to the rail 3c so that the rail 3c is not derailed. The support girders 3b are laterally provided at both ends of the movable girder 3 in the girder length direction, and both ends of each support girder 3b are fixedly provided on the side surface of the vertical frame 1a. For example, H-shaped steel is used for the support girder 3b.

A moving girder drive mechanism 4 for horizontally moving the moving girder 3 is provided in the moving region of the moving girder 3 which moves in a direction orthogonal to the girder length direction on both sides of the moving girder 3 in the girder length direction. The moving girder drive mechanism 4 includes a drive sprocket 4a, driven sprockets 4b, 4c, 4d, 4e, a chain 4f,
It is composed of a drive motor 4g and a transmission shaft 4h.

Of these, the moving girder drive mechanism 4 provided on one side of the girder length direction end of the moving girder 3 is a drive motor 4g.
One drive sprocket 4a interlockingly connected to the movable girder 3 is attached to the vertical frame 1a above the movable girder 3, and two driven sprockets 4 are provided at the same height as both ends of the movable girder 3 in the girder length direction.
b and 4c are attached to the vertical frame 1a, respectively. The driven sprockets 4b and 4c are attached to both sides of the moving range of the moving girder 3, respectively. A chain 4f is stretched between these sprockets 4a, 4b, 4c, and both ends of the chain 4f are connected to the front and rear side surfaces of the girder length direction end of the movable girder 3.

Further, the movable girder drive mechanism 4 provided on the other side of the girder length direction end of the movable girder 3 is provided with a pair of driven sprockets 4d and 4e on both sides of the moving range of the movable girder 3, respectively. . Of these, one driven sprocket 4
d is interlocked with the driven sprocket 4b on one side via a transmission shaft 4h, and the driving force from the drive motor 4g is transmitted through the transmission shaft 4h. A chain 4f is stretched between the pair of driven sprockets 4d and 4e, and both ends of the chain 4f are connected to the front and rear side faces of the girder length direction end of the movable girder 3.

The movable girders 3 are formed on the left and right box girder lower surfaces forming the movable girder 3 at the same height all over the girder length direction, but the box girder upper surface has girder heights on both end sides in the girder length direction. Is lower than the center. The upper surface of the movable girder 3 is horizontally formed in a state where the central portion is at the same height, is inclined and lowered near both ends in the girder length direction, and is lowered at both ends thereof.
On the upper surface sides of both ends of the movable girder 3 in which the girder height is low, there are floating prevention girders 5 that prevent the crushing blade suspension carriage and the movable girder 3 from moving upward due to a reaction at the time of crushing. Each is installed horizontally.

The floating prevention girders 5 on both sides are movable girders 3.
Is horizontally installed with a slight gap from the upper surfaces of both ends of the moving girder 3 in the girder length direction so as not to come into contact with and hinder the movement of the moving girder. The floating prevention girders 5 on both sides are located above the support girders 3b and the rails 3c, and are provided in parallel with them. Each lifting prevention digit 5
Both ends of the are integrally fixed to the side surfaces of the vertical frame 1a.

The lifting prevention girder 5 is made of I-type steel having high rigidity that resists vertical bending deformation. Further, in order to prevent the uplifting prevention girder 5 from bending upward when it is pushed up by the reaction at the time of crushing, a stiffening member 5a is fixed by welding on the upper surface of the uplifting prevention girder 5 along its longitudinal direction. There is.

The lower surfaces of the box girders on the left and right sides forming the movable girder 3 are all formed at the same height in the girder length direction, and the crushing blade suspension carriage 6 is mounted on the lower surface side of the movable girder so as to be horizontally movable. Has been. The crushing blade suspension carriage 6 has flat upper surfaces corresponding to the lower sides of the box girders forming the movable girders 3 on both right and left sides. The crushing blade suspension carriage 6 is attached to the lower surface side of the box girder with a slight clearance from the lower surface of the box girder on the left and right sides of the moving girder 3 so as not to hinder the movement. When the crushing blade suspension carriage 6 is pushed up by a reaction during crushing,
It hits the lower surface of the moving girder 3 and its upward movement is prevented.

The crushing blade suspension carriage 6 has a rectangular shape, and its left and right sides are formed so as to slightly protrude from the outer side ends of the box girders on both the left and right sides of the moving girder 3, and at its left and right ends. Is formed with two roller mounting plates 6a protruding upward on each side, and inside each of the roller mounting plates 6a, a roller 6b rotatably mounted on the inner side surface of the roller mounting plate 6a is rotatably mounted. .

The rollers 6b rotatably supported on the inner side surface of each roller mounting plate 6a are mounted so as to roll on the upper surface on the outer end side of the lower flanges of the box girders on both sides forming the moving girder 3, As a result, the crushing blade suspension carriage 6 moves the moving girder 3
It is structured such that it can be horizontally moved in the girder length direction, that is, in the direction orthogonal to the moving direction of the moving girder 3.

A trolley drive mechanism 7 for horizontally moving the crushing blade suspension carriage 6 is provided in a moving region of the crushing blade suspension carriage 6 which moves in the length direction of the movable girder 3. Truck drive mechanism 7
Is a drive sprocket 7a and driven sprockets 7b, 7
c, a chain 7d, a drive motor 7e, and the like.

The carriage drive mechanism 7 is provided on one side of the movable girder 3, and one drive sprocket 7a linked to the drive motor 7e is mounted on the upper surface of the box girder on one side forming the movable girder 3. , The two driven sprockets 7b and 7c are located at the same height position as both ends of the movable girder 3 in the longitudinal direction of the movable girder 3.
Are respectively attached to the outer side surfaces of the box girders that form the. The driven sprockets 7b and 7c are mounted on both sides of the moving range of the crushing blade suspension carriage 6, respectively. And
Chain 7 is placed between these sprockets 7a, 7b, 7c.
d is stretched, and both ends of the chain 7d are connected to the front end and the rear end of the roller mounting plate 6a of the crushing blade suspension carriage 6, respectively.

The crushing blade 8 is for crushing the reinforced concrete a to separate it into reinforcing steel and concrete. The crushing blade 8 is provided on the crushing blade suspension carriage 6 and has a drive cylinder mechanism 9 to be described later.
Is hung below the crushing blade suspension carriage 6 so as to be pressed downward and movable up and down. The crushing blade 8 is formed of a thick rectangular flat plate and a linear blade 8a and a protruding blade 8b formed on the lower surface thereof.

Of these, the thick linear blade 8a is formed downward on the lower surface of the thick rectangular flat plate at the central portion in the longitudinal direction, and the linear blade 8a is also thick in the direction orthogonal thereto.
Are formed downward. Further, a plurality of protruding blades 8b are formed downward on the lower surface divided vertically and horizontally by the linear blade 8a. The projecting blade 8b is formed in a conical shape on the tip side and has a pointed tip, and the tip of the pointed projecting blade 8b projects below the linear blade 8a.

The projecting blade 8b constituting the crushing blade 8 has a function of causing cracks in the reinforced concrete a at its sharp tip, and the linear blade 8a is used for reinforced concrete from cracked reinforced concrete a. It has a function of separating into reinforce and concrete, and by the cooperation of both, it crushes the reinforced concrete a to separate it into rebar and concrete.

The drive cylinder mechanism 9 is provided downward on the upper surface of the central portion of the crushing blade suspension carriage 6 which is an intermediate space between the left and right box girders of the movable girder 3. A hole is formed in the central portion of the crushing blade suspension carriage 6 to which the drive cylinder mechanism 9 is attached, and the piston 9 of the drive cylinder mechanism 9 is penetrated through the hole.
a extends downward, the tip of the piston 9a is integrally connected to the upper surface of the crushing blade 8, and the crushing blade 8 moves up and down due to the expansion and contraction of the piston 9a, and the piston 9a extends downward to add. Is pressed. A hydraulic cylinder, for example, is used for the drive cylinder mechanism 9.

Further, on both sides of the drive cylinder mechanism 9, when the crushing blade 8 is pressed downward or is moved up and down, the crushing blade 8 is
Guide rods 10 are attached to guide the crushing blade 8 so that the crushing blade 8 can be smoothly pressed and moved up and down. Each guide rod 10 is vertically mounted on the upper surface of the crushing blade suspension carriage 6 which is an intermediate space between the left and right box girders of the movable girder 3, and the crushing blade suspension carriage 6 at the mounting location of each guide rod 10. A hole is formed in the. A guide cylinder 10a for slidingly guiding each guide rod 10 is provided upward on the upper surface of the crushing blade suspension carriage 6 in which the hole is formed, and each guide rod 10 is inserted through the guide cylinder 10a, It extends downward through a hole formed below it, and its lower end is integrally connected to the upper surface of the crushing blade 8.

The operation based on the configuration of the above embodiment will be described below. A chain hoist 1d is used to remove lumps of reinforced concrete a generated as waste materials from tertiary processing at construction factories or at construction sites.
It is hung up and transported to the upper center of the crushing table 2 of the reinforced concrete crushing machine 1. In this case, the moving girders 3 located above the crushing table 2 are moved in advance to the corners so that the chain hoist 1d does not hinder the transfer of the reinforced concrete a mass onto the crushing table 2. deep.

After placing the lump of reinforced concrete a on the crushing table 2, the chain hoist 1d is retracted laterally from above the crushing table 2 and then moved by the drive motor 4g of the moving girder drive mechanism 4. The girder 3 is moved to the center of the crushing table 2 on which the reinforced concrete a mass is placed.

The drive sprocket 4a is rotated by the drive of the drive motor 4g, and the chain 4f stretched around the drive sprocket 4a cyclically moves in a fixed direction, and the moving girder 3 is pulled by the moving chain 4f. Wheels 3a attached to both ends of the moving girder 3 in the girder length direction are rails 3c.
While traveling above, the moving girder 3 horizontally moves to above the center of the crushing table 2. When the moving girder 3 reaches directly above the block of the reinforced concrete a on the crushing table 2, the drive motor 4
Stop g and stop moving the moving girder 3.

Subsequently, the crushing blade suspension carriage 6 attached to the lower surface side of the moving girder 3 is moved to directly above the lump of the reinforced concrete a on the crushing base 2. Movement of the crushing blade suspension carriage 6 is performed by the operation of the carriage drive mechanism 7.

That is, the drive sprocket 7a is rotated by the drive of the drive motor 7e, and the drive sprocket 7a is rotated.
The chain 7d that is stretched around is circulated and moved in a certain direction, and the crushing blade suspension carriage 6 is pulled by the moving chain 7d and is pivotally supported by the roller mounting plates 6a at both ends of the crushing blade suspension carriage 6. The roller 6b travels in the girder length direction on the upper surface of the side edge of the lower flange of the box girder of the moving girder 3, and the crushing blade suspension carriage 6 horizontally moves to just above the block of the reinforced concrete a on the crushing stand 2. To do. When the crushing blade suspension carriage 6 reaches directly above the block of the reinforced concrete a on the crushing platform 2, the drive motor 7e is stopped and the crushing blade suspension carriage 6
Stop moving.

After that, the drive cylinder mechanism 9 on the crushing blade suspension carriage 6 is driven so that the crushing blades 8 hung below the crushing blade suspension carriage 6 are reinforced concrete a on the crushing platform 2
The lumps of are crushed and separated into reinforcing bars and concrete.

That is, the drive cylinder mechanism 9 is driven to extend the piston 9a downward. When the piston 9a extends, the crushing blade 8 connected to the tip (lower end) of the piston 9a moves downward, and the tip of the projecting blade 8b of the crushing blade 8 hits the upper surface of the reinforced concrete a mass directly below.

Further, the driving pressure of the driving cylinder mechanism 9 is increased to extend the piston 9a and press the crushing blade 8. The pressurized crushing blade 8 moves further downward, and the tip of the projecting blade 8b of the crushing blade 8 penetrates from the surface of the reinforced concrete a mass into the inside, causing cracks on the reinforced concrete a mass surface. start. When the crushing blade 8 is further pressed downward in this state, cracks are also generated inside the lump of the reinforced concrete a, and the whole is cracked. At this time, since the reinforcing bars are arranged inside the concrete, the cracked concrete parts are prevented from being disjointed because the reinforcing bars are attached inside each part of the concrete.

When the protrusions 8b of the crushing blades 8 are embedded inside the entire lump of the reinforced concrete a and cracks occur, the linear blades 8a of the crushing blades 8 start to further hit and the reinforced concrete a The entire lump is started to break down, and the linear blade 8a breaks down the concrete to separate the internal reinforcing bars from the concrete.

When the crushing blade 8 is crushing a lump of the reinforced concrete a, an upward force acts on the crushing blade 8 by a reaction, and the upward force acts through the crushing blade 8 and the drive cylinder mechanism 9. The suspension carriage 6 also acts, and the crushing blade suspension carriage 6 is pushed up and moves only slightly upward. The crushing blade suspension carriage 6 that has moved slightly upward contacts the lower surface of the moving girder 3 with its upper surface and tries to push up the moving girder 3.

Lifting prevention girders 5 are laterally provided on the upper surface sides of both ends of the moving girder in the girder length direction, and the moving girder 3 is moved slightly upward by the force for pushing up,
The upper surfaces of the movable girders 3 at both ends in the girder length are lifted and abut against the lower surfaces of the blocking girders 5 to prevent the moving girders 3 from moving upward.

In this way, the upward force acting on the crushing blade 8 at the time of crushing is received by the floating blocking girder 5 through the crushing blade suspension carriage 6 and the moving girder 3, and the crushing blade 8 is pushed up by the reaction. The force applied to the crushing blade 8 by the drive cylinder mechanism 9 is
Through the linear blade 8a and the protruding blade 8b, it acts concentratedly on the lump of the reinforced concrete a, which is used for crushing it and prevents it from escaping to the outside.

When the reinforced concrete a is crushed and the work of separating the reinforced concrete from the inside is completed, the piston 9a which has been stretched is contracted. When the piston 9a contracts, the crushing blade 8 connected to the tip (lower end) of the piston 9a ascends, and when the crushing blade lifting carriage 6 rises to the lower surface side, by stopping the drive cylinder mechanism 9, The work is complete.

The present invention is not limited to the above embodiments, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0045]

As is clear from the above description, according to the reinforced concrete crusher according to the present invention, the reinforced concrete containing waste generated by the tertiary processing in the concrete manufacturing plant or the waste generated at the construction site is used. It can be crushed and completely separated into rebar and concrete. This makes it possible to dispose of it, and the separated rebar can be reused as scrap,
Similarly, the separated concrete can be finely crushed by another crusher and reused as, for example, concrete aggregate or reused as a roadbed subbase reinforcement, so that waste materials can be reused. And so on, which have extremely new and beneficial effects.

[Brief description of drawings]

FIG. 1 is a front view of a concrete crusher with reinforcing bars showing an embodiment of the present invention.

FIG. 2 is a side view of a concrete crusher with reinforcing bars showing an embodiment of the present invention.

FIG. 3 is a side view of a concrete crusher including reinforcing bars showing an embodiment of the present invention.

FIG. 4A is a plan view of a crushing blade showing an embodiment of the present invention. (B) is a front view of a crushing blade showing an embodiment of the present invention. (C) is a side view of the crushing blade which shows the Example of this invention.

FIG. 5 is a partial sectional view of a crushing blade suspension carriage and a movable girder showing an embodiment of the present invention.

[Explanation of symbols]

1 Reinforcing concrete crusher 5 Lifting prevention girder 1a Vertical frame 5a Stiffener 1b Horizontal frame 6 Crushing blade suspension trolley 1c Transport support girder 6a Roller mounting plate 1d Chain hoist 6b Roller 2 Crushing stand 7 Truck drive mechanism 2a Horizontal girder 7a Drive sprocket 2b Strut 7b Driven sprocket 3 Moving girder 7c Driven sprocket 3a Wheel 7d Chain 3b Support girder 7e Drive motor 3c Rail 8 Crushing blade 4 Moving girder drive mechanism 8a Linear blade 4a Drive sprocket 8b Driven blade sprocket 4b 4c Driven sprocket 9a Piston 4d Driven sprocket 10 Guide rod 4e Driven sprocket 10a Guide tube 4f Chain a Reinforced concrete 4g Drive motor 4h Transmission shaft

Claims (1)

[Claims] 1. A crushing table on which reinforced concrete for crushing is placed is provided, a movable girder is horizontally installed above the crushing table so as to be horizontally movable, and a crushing blade suspension carriage is provided on the lower surface side of the moving girder. It is installed horizontally movable in the direction of the girder orthogonal to the moving direction of the moving girder, and the lifting prevention girders that prevent the crushing blade suspension carriage and the moving girder from moving upward due to the reaction at the time of crushing are placed on the upper surface of both ends of the moving girder Horizontally installed, the crushing blade that crushes reinforced concrete below the crushing blade suspension carriage and separates it into reinforcing steel and concrete is hung downwardly so that it can be pressed and lifted downward, and crushed on the crushing blade suspension carriage. A concrete crusher with reinforcing bars, which is equipped with a drive cylinder mechanism that drives the blades.