JP2011183308A - Grain refining mounting - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crusher for e.g. concrete structures allowing use as both an apparatus for cobbing work and a grain refining apparatus and attached to the tip of an arm of a work truck, e.g. a back hoe. <P>SOLUTION: The crushing surface of a movable jaw section 3 is equipped with a grain edge which is square and has a plate-shaped crushing surface and a plurality of rugged teeth, and the crushing surface of a fixed jaw section is also equipped with a plate-shaped grain edge 2a having a plurality of rugged teeth. A target material is grain-refined through an opening-and-closing operation of the jaws, and the grain-refined crushed product is sorted by a sieve-equipped shroud 2b mounted. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to a crusher that is attached to a construction machine such as a power shovel and crushes a concrete structure or the like by opening and closing a jaw.

Recently, a crusher used as a main part for dismantling and crushing structures such as concrete or peeling and crushing concrete or asphalt roadbeds has been actively researched for the purpose of workability, noiselessness, vibration, etc. Has been developed.

Several forms are known as the crusher used for the above-mentioned public relations. As a common form, a fixed jaw is generally projected below and attached to the arm tip of a work cart such as a backhoe above. A frame having a bracket for rotating, a rotating jaw rotatably attached to a frame in the vicinity of the fixed jaw base, and a hydraulic cylinder in which a cylinder portion is pivotally attached to the frame and a rod tip is pivotally attached to the rotating jaw In general, a configuration in which the rotating jaw is opened and closed by the expansion and contraction of the hydraulic cylinder and the object to be crushed sandwiched between the fixed jaw is crushed is well known.

The crusher having the movable jaw described above sequentially crushes the object so as to directly bite against a crushing object such as a concrete wall by opening and closing the movable jaw. In addition, the crushed concrete pieces are usually conveyed to a dedicated crusher configured as a stationary type, and are crushed into small pieces having a predetermined particle size, that is, are pulverized. In this way, the conventional crushing (large-scale) working device with a crusher and the work for removing the reinforcing bars from the large-sized broken pieces, or for the small-sized work that makes the broken pieces smaller pieces. The device is divided into a crusher device for finely pulverizing small pieces. The present invention provides an apparatus that can be used as both a splitting work apparatus and a fine graining apparatus. A bucket with a built-in crusher has been proposed as a device capable of performing both operations, and the bucket is used by being attached to the end of an arm of a work cart such as a hydraulic excavator.
JP 2009-56423 A JP-A-11-28373

In the said patent document, since the apparatus was comprised in the bucket, if it was not subdivided smaller than the magnitude | size of a bucket, it could not be made fine. Also, continuous fragments with rebars could not be refined. In view of this, the present invention proposes a crusher that can crush a crushed material larger than a bucket, removes only the rebar from a reinforced concrete crushing piece, and can also be used for a fine graining operation.

Accordingly, the finely sized attachment device according to claim 1 is an attachment device that is attached to the tip of an arm of a work carriage such as a backhoe and attached to a crusher that crushes an object to be crushed by opening and closing the jaws. The crushing surface is square, the crushing surface is plate-shaped, and fine-grained teeth with a plurality of uneven teeth are attached. It is characterized by wearing granular teeth and making the object to be crushed fine by opening and closing the jaws.

The finely-granulated mounting tool according to claim 2, wherein a plate-shaped enclosure is provided around fine-grained teeth attached to the crushing surface of the fixed jaw so as to prevent spilled material from spilling, and the opening direction of the fine-grained teeth Is characterized in that a sieve can be provided and finely crushed objects can be selected.

By using the refined wearing tool of the present invention, it can be used as recycled aggregate in the field, for example, by reusing it as roadbed material or aggregate for foundation work, etc. Can be reused without transporting outside. In addition, it is particularly effective in a small-scale site where the efficiency of operating a large crusher device for fine graining is poor.

Embodiments of the present invention will be described with reference to the drawings. First, the refined wearing tool of the embodiment will be described with reference to FIGS. FIG. 1 is a perspective view of a fine-grained wearing device 1 according to the first embodiment of the present invention. FIG. 2 is a side view of the atomized wearing tool 1 of FIG. FIG. 3 is a detachment view of the atomized wearing tool 1 according to the embodiment of the present invention.

In FIG. 1, reference numeral 1 is attached to a crusher that is attached to the tip of a backhoe arm and crushes the object 6 to be crushed by the narrow pressure between the movable jaw 5 and the fixed jaw 4 by expansion and contraction of a backhoe attachment cylinder. This is a fine-grained wearing tool. 3 is a movable jaw fine-grained tooth that is mounted on and used on the small crushing tooth of the movable jaw 5 of the splitting machine. The surface of the movable jaw fine-grained tooth 3 is flat and small. A plurality of uneven teeth are provided. 2a is a fixed jaw fine-grained tooth, which is used by placing it on the split crushing surface of the fixed jaw 4 of the splitting machine, and the surface of the fixed jaw fine-grained tooth 2a is flat, A plurality of small uneven teeth are provided. 2b is a shroud and is used by attaching it to the fixed jaw fine teeth 2a. The fixed jaw fine teeth are fixed with a metal plate so that the crushed object 6 does not spill over the fixed jaw fine teeth 2a. Surrounding 2a. The front bottom surface of the fixed jaw fine-grained teeth 2a is a sieve, and the finely crushed object 6 is selected by the sieve. The mesh of the sieve can be changed by the sieving enclosure 2b. In general, those often used for roadbed materials and basic materials for roads are mostly fine particles of 0 to 40 mm. It is recommended to determine the interval between the sieve meshes by the diameter of the desired finely divided product.

In FIG. 2, the structure of the finely-granulated mounting tool 1 of the present invention will be described. The subdivision machine to be installed is commercially available from each manufacturer. The finely-granulated mounting tool 1 of the present invention is used by being mounted on a splitting machine for splitting the material to be shredded 6 by directly engaging the material to be shredded 6 such as concrete by opening and closing the movable jaw 5. Is. The movable jaw fine-grained teeth 3 are disposed on the small teeth of the movable jaw 5 and are fixed by bolts or the like. Similarly, the fixed jaw fine-grained teeth 2a are also arranged on the small crushing surface of the fixed jaw 4 and fixed by bolts or pins. The object 6 to be crushed is crushed by the narrow pressure between the movable jaw 5 and the fixed jaw 4. Since fine-grained teeth are attached to each jaw, the gap in the state where the jaws are open is narrower than that of the split machine before being attached. This is because before crushing fine particles, the to-be-crushed object 6 is subdivided to reduce the particle size, so that the to-be-crushed object 6 can be narrowed even if the interval is narrow. Further, in the opening / closing operation of the movable jaw 5, since the fine-grained teeth are attached, the hydraulic cylinder comes into contact with each other before the stroke ends until it reaches the stroke end. This is set so that the oil pressure of the hydraulic cylinder rises when the fine-grain teeth come into contact with each other, and the oil pressure higher than the set pressure escapes from the relief valve provided in advance. This relief valve is equipped on the market from the beginning. Even if the fine-grained teeth do not come into contact with each other, even if the narrow cross-sectional area with a large and narrow cross-sectional area is narrowed, the oil pressure higher than the set pressure may escape from the relief valve and fine granules may not be produced.

FIG. 3 is a detachment view of the atomized wearing tool 1 according to the embodiment of the present invention. The movable jaw fine-grained teeth 3 are mounted from the direction in which the split teeth of the movable jaw 5 extend and are fixed with bolts from both sides. Similarly, the fixed jaw fine-grained teeth 2a are also mounted by attaching a pin to the engaging portion 2c that is mounted from above and is removed from the through-hole in the middle of the fixed jaw 4. The sieving enclosure 2b is attached after the fixed jaw fine-grained teeth 2a are attached, and is attached so as to cover the tip of the fixed jaw 4 tip. Then fix with bolts from both sides.

FIG. 4 is a fine-grained progress diagram of the fine-grained wearing device 1 according to the embodiment of the present invention. A is a state in which the roughly crushed object 6 is being subdivided by the subdivision machine before attaching the finely sized attachment 1. B is a state in which the crushed object 6 is further refined by attaching the refined wearing tool 1.

FIG. 5 is a diagram showing an operation method for fine-graining of the fine-grained wearing device 1 according to the present invention. Both C and D are in a state in which a screened enclosure 2b is mounted. An operation method for selecting the object 6 to be crushed smaller by the operations of FIGS. 4A and 4B is shown in C and D. C and D are diagrams in which a sieving enclosure 2b is mounted. C is a state in which the crushed object 6 is scraped and further refined by fine teeth. When it becomes the same size as the interval width of the sieve of the sieving enclosure 2b, if the object 6 is tilted toward the sieve and swung back and forth as shown in FIG. The to-be-crushed object 6 falls under the sieve. The remaining large object 6 to be crushed is further refined by tilting the bucket lever of the backhoe toward the fine-grained teeth as shown in C again.

The plate-like shape of the movable jaw fine-grained tooth 3 and the fixed jaw fine-grained tooth 2a may be any of a conical shape, a pyramid shape, and a chevron shape. Since the finely divided teeth on both jaws are plate-like, the crushed pieces with reinforcing bars can be broken up to separate the reinforcing bars from the concrete.

It is a perspective view of the refinement | attachment attachment tool which concerns on embodiment of this invention. FIG. 2 is a side view of the finely divided wearing tool of FIG. 1. It is a detachment | desorption figure of the finely-granulated mounting tool which concerns on embodiment of this invention. It is a fine-grain progress figure of the fine-grained wearing tool concerning an embodiment of the present invention. It is a figure which shows the operation method of atomization of the atomization mounting tool which concerns on this invention.

DESCRIPTION OF SYMBOLS 1 Fine-granulated mounting tool 2a Fixed jaw part fine grain tooth 2b Screening enclosure 2c Locking part 3 Movable jaw part fine grain tooth 4 Fixed jaw 5 Movable jaw 6 Object to be crushed

Claims (2)

It is an attachment that is attached to the tip of the arm of a work carriage such as a backhoe and is attached to a crusher that crushes the object to be crushed by opening and closing the jaws. The crushing surface of the movable jaw is square and the crushing surface is plate-like Attach fine-grained teeth with multiple concave and convex teeth, attach flat-plate fine-grained teeth with multiple concave and convex teeth to the crushing surface of the fixed jaw, and crush it by opening and closing the jaws A finely sized wearing tool characterized by finely pulverizing an object. A plate-shaped enclosure is provided around the fine-grained teeth attached to the crushing surface of the fixed jaw so as to prevent spilled material from spilling, and a sieve is provided in the opening direction of the fine-grained teeth to provide a finely divided object. The finely divided wearing tool according to claim 1, wherein the crushed material can be selected.

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