JP2004167409A - Construction machine for crushing work - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a construction machine for crushing work which enables to solve problems accompanied by a crusher using an attachment such as a bucket integrated with crushing mechanism or an apparatus while omitting the installment of a dedicated apparatus for carrying out crushing treatment. <P>SOLUTION: The construction machine carries out crushing work of concrete lumps, rocks or wastes with various attachments mounted on an arm end. The construction machine for crushing work is provided with a crushing unit 3 in a moving range of a fork 1 at an end of the arm 12 and in a range where the crushing unit 3 can be supported by a rotation base 7 of the construction machine. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a construction machine for crushing work in which various attachments are attached to the tip of an arm to perform crushing work of concrete blocks, rocks and wastes.
[0002]
[Prior art]
In the work of crushing concrete blocks, rocks and wastes (especially plastics) using construction machines (hereinafter referred to as crushing work), the concrete blocks, rocks and wastes are crushed by a fork (bucket) or bucket, etc. It is transferred to a device or the like, and then thrown in sequentially. However, there are cases where a crushing device or the like having a suitable processing capacity cannot always be installed at the crushing work site. Therefore, various techniques have conventionally been proposed for imparting a crushing function to a construction machine itself.
[0003]
Patent Literature 1 discloses a concrete crusher housed in a bucket and a plate disposed in the bucket for the purpose of providing a concrete crusher that requires no complicated procedure for crushing concrete garbage in a space-saving manner. After crushing by the first concrete crushing means, the concrete crushed by the first concrete crushing means is further crushed by the second concrete crushing means comprising a pair of rollers similarly arranged in the bucket. A technology has been proposed for continuously crushing and discharging concrete granules that have been refined.
[0004]
In addition, Patent Document 2 discloses a conventional crusher for pulverizing concrete waste material accumulated on a building demolition site, in which a defect, a concrete block, is divided into large and small pieces. In order to solve problems such as the need to replace attachments and carry in a small crusher again to crush the remaining crushing, crushing and fixing to the side of the bucket body equipped with a rotary crushing mechanism A technology has been proposed in which a rotating frame that moves up and down by a frame and a hydraulic cylinder is pivotally attached, and a crushing claw is attached to a tip portion of the rotating frame.
[0005]
[Patent Document 1]
JP-A-11-107545 (pages 2 to 4, FIGS. 1 to 4)
[Patent Document 2]
JP 2001-193291 A (page 2, FIGS. 1 to 6)
[0006]
[Problems to be solved by the invention]
The above-mentioned prior art provides a crushing function to an attachment (for example, a bucket) capable of collecting concrete blocks, rocks, and wastes in fixed amounts. This is because, when a dedicated crushing device is installed, a bucket is used to carry concrete blocks, rocks, and wastes into the crushing device, etc. This is a technique for simplifying the operation. Certainly, since the collection and crushing can be performed in an integrated bucket, the processing procedure is simplified and looks efficient, but actually the crushing process is performed at the point where concrete lumps, rocks and wastes were scooped by the bucket. Instead, the crushing process must be carried out by moving the bucket that collects the concrete blocks, rocks and waste to a place where the crushed concrete blocks, rocks and waste are collected. Another disadvantage is that rocks and waste cannot be scooped until crushing is completed.
[0007]
Furthermore, since a mechanism for crushing is added to the bucket, the volume of the bucket is reduced, and there is also a problem that the size of the rock and the amount of waste that can be crushed at one time are reduced. In addition, in order to put concrete lumps, rocks and wastes into the crushing mechanism, the attachment to which the above prior art is applied must be a bucket having a space for temporarily holding concrete lumps, rocks and wastes. Must. In other words, when crushing, it is necessary to reduce the size of concrete blocks, rocks and waste in advance to a size that can be bucketed, and a separate crushing (primary crushing) device is required. Become. Therefore, while omitting the installation of a dedicated device for performing the crushing process, studies were made to solve the problems associated with the crusher using an attachment such as a bucket integrated with the crushing mechanism.
[0008]
[Means for Solving the Problems]
As a result of the examination, the construction machine that carries out the work of crushing concrete blocks, rocks and wastes by attaching various attachments to the arm tip, within the movement range of the attachment at the arm tip and from the turning base of the construction machine This is a crushing construction machine provided with a crushing device within a supportable range. Here, the turning base (lower frame) refers to a movable gantry having crawlers on both sides, and the turning main body (upper frame) refers to a working unit that includes a driver's seat and a hydraulic power source and turns as a base of an arm. Further, in detail, the arm means a forearm connected to the boom, but in the present invention, an arm that bends including the boom is represented by the term arm.
[0009]
The construction machine for crushing work of the present invention is characterized in that it has a function of collecting concrete blocks, rocks and waste and a function of crushing collected concrete blocks, rocks and waste, and has both functions. There are features. For this reason, the attachment at the tip of the arm may be a fork (grab) capable of holding concrete blocks, rocks and wastes, or a bucket capable of scooping concrete blocks, rocks and wastes. The attachment to be attached to the arm tip is not limited to any type or capacity, as long as it has a function of transferring and putting concrete blocks, rocks and wastes from the turning base that performs the crushing process to the supported crushing device. Here, since the attachment is free, for example, a large crusher is used as the attachment, and while the building is being dismantled with this large crusher (primary crushing function), the concrete lumps are conveyed to the crushing device by the large crusher as appropriate. It is also possible to adopt a configuration of pulverizing (secondary crushing function).
[0010]
Also, the crushing device of the present invention may be movably supported integrally with the turning base, regardless of how to crush concrete blocks, rocks and waste. Usually, the arm turns according to the turning of the turning main body, and it is impossible to move the attachment to the back of the turning main body. Therefore, when the crushing device is provided on the turning main body, the front side is basically used. On the other hand, since the turning main body can be turned to any position by the turning operation, the crushing device can be installed on either the front surface or the rear surface without the crawler.
[0011]
Here, in the present invention, a new crushing device is newly provided in the construction machine. Therefore, it is necessary to separately modify the crushing device in order to support the crushing device. It is preferable that the present invention be configured to be supported by a mounting base, since at least a modification for supporting the turning base side is not required, and the present invention can be configured using existing construction machines. The pulverizing device may be attached to the turning base directly or via a support member (for example, a lifting arm described below).
[0012]
Further, the crushing device is preferably supported by a lifting arm extending from the turning base. This crusher is designed to discharge concrete blocks, rocks and wastes after crushing. And move the used construction machinery. The lifting arm may be a cantilevered support arm or a parallel link arm configured in accordance with the crushing device, or a lifting plate lifting arm for lifting and lowering the discharging plate may be used. When the lifting plate lifting arm is used, the arm can usually be approached in front of the turning base, so that the crusher installed in front of the turning base falls within the movement range of the attachment at the tip of the arm.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing a state in which a crushing construction machine to which the present invention is applied collects rocks 2 with a fork 1. FIG. FIG. 3 is a side view showing the ascending and descending of the crushing device 3 (omitted after the arm). FIG. 4 is a crushing construction machine to which the present invention is applied. FIG. 5 is a side view showing a state where (waste) 5 is being crushed by a collecting and crushing device 3.
[0014]
The present invention can be configured using not only a configuration in which a new crushing device is provided but also a construction machine having a ready-made earth discharging plate (not shown) as shown in FIGS. In the construction machine of this example, a turning body 10 provided with a driver's seat 8 and a hydraulic power source 9 is provided on a turning base 7 having crawlers 6 on both sides, and a boom 11 and an arm 12 bent from the turning body 10 are extended. And a fork (grab) 1 is attached to the tip of the arm 12. The pulverizing device 3 is supported by an elevating arm 13 attached to the front side of the swivel base 7 and to a foundation on which the earth removal plate is mounted. Thereby, the crushing device 3 of the present example can be provided so as to be necessarily included in the moving range of the fork 1.
[0015]
The crushing device 3 of the present example has a configuration in which a pair of hydraulically driven crushing rollers 17 and 17 are axially mounted in a container body 16 having an input port 14 at the upper side and a discharge port 15 at the lower side. The crushing rollers 17, 17 are driven to rotate inward by the hydraulic pressure supplied from the hydraulic pressure source 9. As described above, the pulverizing device 3 of the present invention has an advantage that it is not necessary to provide a separate driving source if it is of a hydraulic drive type. The rock 2 gripped by the fork 1 is transported to a position just before the turning main body 10 by the bending of the boom 11 and the arm 12, and is thrown into the inlet 14 from above the crushing device 3. When the rock 2 moves downward according to gravity, the rock 2 descends while being pulverized by the crushing rollers 17, and is discharged as pulverized rock 18 from the discharge port 15 below the container body 16.
[0016]
In FIG. 2 (FIG. 2), the crushing device 3 discharges the crushed rock 18 from the discharge port 15 as it is. However, in order to carry out the crushed rock 18 separately, a transfer container or the like (not shown) is required. It is good to arrange. In this case, since the crushing device 3 can move up and down according to the lifting arm 13, the height position can be set according to the size of the transfer container or the like (see FIG. 3). When the ground rocks 18 are discharged from the discharge port 15 as in the present embodiment, the ground rocks 18 may be leveled directly by the crawler 6 or the like.
[0017]
The crushing device 3 can be moved up and down by the lifting arm 13 as described above. The crushing device 3 is positioned upward for the arrangement of the transfer container and the like during the crushing process. Thus, it is good to lower it downward. Since the crushing device 3 is located below, the center of gravity of the entire construction machine is lowered, and stable movement can be secured. As described above, the vertical movement of the crushing device 3 is preferable both in the crushing process and for the movement of the construction machine before and after the crushing process. ) Can be easily satisfied.
[0018]
The present invention provides a concrete lump, a rock and waste collection function, and a concrete lump, rock and waste pulverization function, which are separately provided to a construction machine. Alternatively, a bucket 4 can be utilized as seen in FIG. In this example, waste plastics (waste) 5 whose elements are smaller than rocks are to be treated, and a pile of waste plastics 5 is scooped in a bucket 4 so that a certain amount of waste plastics 5 is reliably fed into the crusher 3. Then, the crushed waste plastic 19 can be crushed. As described above, in the present invention, a fork (grasping) is used for rocks and large-sized wastes that are difficult to scoop with buckets, and buckets are used for smaller-sized wastes. Attachments can be exchanged according to the target to be collected as appropriate while maintaining the same ability.
[0019]
【The invention's effect】
The present invention not only improves the economical efficiency of omitting the installation of a dedicated device for performing the crushing process, but also separates the crushing device from the attachment for collecting concrete lumps, rocks and wastes, and collects the attachment (or 1). Only the crushing process (or the second crushing) and the crushing device (or the second crushing) are unified, so that there is an effect that the crushing process can be executed more efficiently than before. For example, if concrete masses, rocks and wastes are collected and transferred one after another with the attachment while the crushing device is operating, the crushing device can be operated without interruption. This is not feasible with a crusher that integrates a conventional attachment and crusher. Since the attachment of the present invention does not include a crushing device, the capacity of the attachment can be increased and the transport amount can be increased as compared with a conventional crusher.
[0020]
In addition, various combinations of attachments and crushing devices that achieve appropriate recovery with the target concrete blocks, rocks and wastes are conceivable, but with a crusher in which both are integrated as in the past, the number of this combination is the same. The types need to be aligned. On the other hand, according to the present invention, since the attachment and the crushing device can be individually selected, there is also an effect that it is possible to flexibly cope with each mode of the crushing process.
[0021]
For example, in the past, a building was dismantled (primary crushing) using a large splitter as an attachment, and then the concrete mass and the like after disassembly were transported to a crushing device using a small splitter or a fork (grab) and crushed. According to the present invention, (secondary crushing) can be directly carried from the splitter to the crushing apparatus, and the primary crushing and the secondary crushing can be continuously processed without replacing the attachment. In addition, when the rock is large, the size of the crushing device for crushing is also required to be increased.However, the conventional crusher integrated with the attachment has a limitation in increasing the size, but in the present invention, the crushing device is not affected by the attachment. The capacity or size of the device can be changed. As described above, the present invention is a technique for solving the problem of the crusher used for the same purpose as the conventional one.
[Brief description of the drawings]
FIG. 1 is a side view showing a state where a crushing construction machine to which the present invention is applied collects rocks with a fork.
FIG. 2 is a side view showing a state in which the crushing construction machine is crushing rock by a crusher.
FIG. 3 is a side view showing the elevation of the crushing device (omitted after an arm).
FIG. 4 is a side view showing a state in which a construction machine for crushing processing to which the present invention is applied is collecting waste plastic (waste) by a bucket and crushing by a crushing device.
[Explanation of symbols]
1 Fork 3 Crusher 4 Bucket 5 Waste plastic (waste)
7 Swivel base 10 Swivel body

Claims (1)

In a construction machine that performs various operations of crushing concrete blocks, rocks, and wastes by attaching various attachments to the end of the arm, the crushing device must be within the movement range of the attachment at the end of the arm and within a range that can be supported from the turning base of the construction machine. A construction machine for crushing work, which is provided.

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