JPS6183772A - Moving type crushing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a mobile crusher suitable for crushing long heavy objects, particularly waste concrete poles such as utility poles and telephone poles.

(Prior Art) Conventionally, waste concrete pillars have been crushed while being fed into a press-type crusher installed at a processing plant in fixed length increments.

In this case, since the waste concrete pillar is long and has a large ff1ffi, it is very troublesome to feed it into the crusher, and the crushing efficiency is poor.

Further, after crushing, the reinforcing bars that had been buried inside the waste concrete pillars remain in long lengths, and the disposal of these remaining reinforcing bars is complicated.

(Purpose of the Invention) The present invention was developed to solve these problems, and has excellent mobility, can efficiently crush long and heavy waste concrete columns, and can VJ break of reinforcing bar,
The present invention provides a mobile crusher that can easily perform processing.

(Structure of the Invention) The present invention includes a rotatable crushing frame and a crushing frame that is rotated at the tip of the arm of a construction machine that supports a traveling body, a rotating body, an elevating boom, and a rotating arm. a rotating mechanism, a pair of crushing plates facing each other on the crushing frame and a pair of cutting blades facing each other are adjacently provided, and
At least one of the crushing plates and at least one of the cutting blades are rotatably provided with respect to the crushing frame, and the crushing plate is rotated around the crushing frame. The present invention is characterized in that it includes a rotating mechanism that moves the cutting blade, and a rotating mechanism that rotates the cutting blade.

(Example) In the figure d3, A indicates a crushing device, and B indicates a base machine of a construction machine such as a hydraulic excavator.

The crushing device A includes a pair of crushing plates 2 at the tip of a crushing frame 1.
．． 3 and a pair of cutting blades 4 and 5, which can be opened and closed, respectively.The crushing frame 1 is formed into a flute shape opening downward, and a mounting part 11 to the tip of the arm is provided on the back side of the crushing frame 1. There is.

A plurality of fixed support plates 23 are fixed and protruded from the lower front end of the crushing frame 1 at predetermined intervals on the left and right, a substrate 22 is fixed to the fixed support plates 23, and one crushing plate 2 is fixed to the fixed support plates 23.
are installed in a replaceable manner.

12 is a reinforcing plate of the crushing frame 1.

In addition, a pair of left and right movable support plates 33 are rotatably provided at the rear of the crushing frame 1 via a pivot 35, a substrate 32 is fixed to the movable support plates 33, and the substrate 32 faces the crushing plate 2. The other crushing plate 3 is removable and can be replaced. 34 is a reinforcing rib of the substrate 32, and 13 is a reinforcing and partitioning plate of the crushing frame 1.

The crushing plates 2 and 3 are formed to be larger (longer) and wider than the diameter of the crushed material, that is, the waste concrete column C, and have a plurality of protrusions along the left-right direction at predetermined intervals vertically on the opposing inner surfaces. Article 21.31 is provided protrudingly.

Reference numeral 6 denotes a crushing cylinder as a rotating mechanism for the crushing plate 3, and the rear end of the cylinder is supported within the crushing frame 1 by a shaft 61, and the tip of the cylinder is connected to the movable support plate 33 via a connecting pin 62. By rotating the movable support plate 33 with this crushing cylinder 6, the movable side crushing plate 3
is configured to be able to approach and separate from the fixed side crushing plate 2.

On the other hand, the cutting blade 4.5 is provided on one side of the crushing plate 2.3, and one of the cutting blades 4 is provided as a fixed blade with a receiving frame 41 and several pieces on the outer surface of the fixed support plate 23. bolt 42
It is removably attached via the The other cutting blade 5 is
A receiving frame 52 is attached to the inner surface of a movable support plate 51 that is rotatably supported on the pivot shaft 34 as a movable blade separately from the movable support plate 33.
It is detachably attached via several bolts 53.

Reference numeral 7 designates a cutting cylinder as a rotating mechanism for the cutting blade 5, and its rear end is supported on a shaft 61 in common with the crushing cylinder 6 in the crushing frame 1, and its rond tip is connected via a connecting pin 71. The cutting cylinder 7 is connected to the movable support plate 51, and by rotating the movable support plate 51 with the cutting cylinder 7, the cutting action of both the cutting blades 4 and 5 can be exerted.

The cutting blade 4.5 is formed into a rectangular plate shape, and a cutting edge is formed on each long side ridge (total of 4 sides) on both the front and back sides, and the cutting blades 4 and 5 are each turned upside down, and then the front and back sides are turned upside down. The structure is such that it can be turned over and fermented.

Although the cutting blades 4 and 5 are usually placed on the side of the crushing plate 2.3 on the driver's seat 8 side, they may be placed on the opposite side. may be arranged in the center, and a pair of crushing plates 2.3 may be arranged on both left and right sides thereof.

The crushing device A configured as described above is used by being attached to the end of an arm of a base machine B of a construction machine such as a hydraulic excavator. In this case, the base machine B includes a traveling body 81 equipped with a traveling device such as a crawler, a revolving body 82 rotatably provided on the traveling body 81, a boom 83 provided on the revolving body 82 so as to be movable up and down, and a poom. It has an arm 84 rotatably provided at the tip of the arm 83, a boom cylinder 85, an arm cylinder 86, and a packet cylinder 87, and the arm 84 generally has links 88 and 89 at its tip. A packet (not shown) is attached through the
The above-mentioned crushing device A is installed in place of this packet.

That is, the lower connection hole 14 of the attachment part 11 provided on the back side of the crushing frame 1 of the crushing device A is rotatably connected to the packet attachment part at the tip of the arm 84 via the shaft 16, and The upper connecting hole 15 of the attachment part 11 is connected to the tip of the link 89 connected to the packet cylinder 87 via the connecting bottle 17, and the packet cylinder 87 and the links 88 and 89 are connected to the rotating part of the crushing part ff1A, that is, the neck. Used for getting off. In this way, the crushing device A is rotatably attached to the tip of the arm 84 of the base machine B, and the crushing cylinder 6 marked with # and the cutting cylinder 7 are connected to the hydraulic drive source equipped on the base machine B, thereby creating a mobile crusher. Configure.

Therefore, in the crushing plant, the mobile crusher
f of a large number of waste concrete columns C stacked in a predetermined location
i! Move to the 1st stack position! 11J and perform crushing work.

That is, at the time of crushing, the movable support plate 33 is first moved by the shortening operation of the crushing cylinder 6 and the cutting cylinder 7.
．． 51 to the rear, the movable crushing plate 3 and the movable cutting blade 5 are moved backward to be separated from the fixed crushing plate 2 and the fixed cutting blade 4, and the crushing plate 2.3 and the cutting blades 4 and 5 are In this state, the crushing device is moved to the corresponding position of the waste concrete column C1, which is to be crushed.

This movement is performed by a combination of running, turning, boom elevation, arm rotation, etc. of the base machine B, and all these operations are performed from the driver's seat 8.

Next, while keeping both cutting blades 4.5 open, the crushing cylinder 6 is extended by a predetermined length, the movable support plate 33 is rotated forward, and the movable crushing plate 3 is advanced toward the fixed crushing plate 2. By doing so, the desired waste concrete column C is grasped by both crushing plates 2°3, and the same concrete column C is taken out to a predetermined crushing position.

Next, the crushing cylinder 6 is further extended to advance the movable crushing plate 3 further toward the fixed crushing plate 2, and both crushing plates 2.3 are closed, thereby removing the waste concrete column C.
Crush the desired location. In this case, the crushing cylinder 6 is expanded and contracted several times at the same position, and both crushing plates 2.3 are moved several times.
By taking a break, a desired portion of the waste concrete column C can be completely crushed. However, the reinforcing bars C' buried inside the column are not crushed, and only the concrete portion is crushed.

Next, the crushed portion UA is laterally moved in the longitudinal direction of the waste concrete column C by a predetermined length 1, that is, approximately the same length as the width of the crushed plates 2 and 3, and the portion adjacent to the crushed portion is is crushed by the same operation as described above, and hereafter, crusher 2.3
By repeating opening/closing and horizontal movement, the concrete part of the waste concrete column C is crushed.

In addition, at the time of the above-mentioned crushing, the cutting cylinder 7 is shortened and the cutting blades 4 and 5 are retracted so as not to be involved in the crushing. By doing so, it is possible to prevent excessive load from being applied to the cutting blades 4, 5, and to prevent wear and tear of the cutting blades 4, 5, thereby extending their life.

Further, during the above-mentioned crushing, a water supply tank is placed on the base machine in advance, a water supply nozzle is provided on the crushing frame 1, the nozzle is connected to the tank by piping, and water is sprayed from this nozzle onto the crushing part. You may do so. This makes it possible to suppress the generation of dust and the like during crushing.

After crushing the concrete portion of the waste concrete column C to an appropriate length or all of it in this way, the cutting cylinder 7 is extended to advance the movable support plate 51, and the cutting blade 5 is advanced until the double cutting blade 4.5 is crushed. The reinforcing bars C' remaining after the crushing are cut into a predetermined length. At this time, both the crushing plates 2 and 3 may be left open and tilted, but with both crushing plates 2 and 3 grasping a predetermined portion of the reinforcing bar C', cut the - side of the reinforcing bar C'. By cutting with the blade 4.5, a large number of reinforcing bars C' can be cut at once, improving cutting efficiency.

(Effects of the Invention) As explained above, according to the present invention, by using an existing construction machine as a base machine and attaching a crushing device to the tip of its arm, the crushing device can be freely moved. Desa・
It has 71 separate movability, and can crush long and heavy items such as waste concrete columns extremely efficiently. In addition, since it can be operated from the operator's seat of the base machine, which is located far away from the crushing position, it is extremely safe and hygienic to work. Furthermore, there is no need to set up a large-scale facility dedicated to stacking, unloading, loading, and unloading waste concrete pillars at the processing plant.
Equipment costs can be reduced. Moreover, since the crushing plate and the cutting blade are provided and the cutting blade is configured to open and close independently of the crushing plate, the cutting blade can be left open and on standby when crushing the concrete part. This can greatly improve the lifespan of the cutting blade by preventing wear and damage to it as much as possible.

[Brief explanation of drawings]

Fig. 1 is an overall side view showing an embodiment of the present invention, Fig. 2 is a front view of the crushing device, Fig. 3 is a cross-sectional view taken along the line ■-■ in Fig. 2, and Fig. 4 is a cross-sectional view taken along the line IV-IV in Fig. 2. Figure 5 is V- of Figure 3.
VFA sectional view, Figure 6 is a side view of the main part showing the crushed state,
FIG. 7 is a front view of the main part showing the cut state. A...Crushing equipment, B...Base machine for construction machinery,
C... Waste concrete column, 1... Crushing frame, 2
... Fixed crushing plate, 3... Movable crushing plate, 4... Fixed cutting blade, 5... Movable cutting blade, 6... Crushing cylinder, 7... Cutting cylinder, 11...・Mounting part, 23・
...Fixed support plate, 33...Movable support plate, 35...Pivot, 51...Movable support plate, 61...Cylinder mounting shaft, 62...Connection pin, 71...Connection bin , 81・
... Traveling body, 82 ... Swivel body, 83 ... Elevation boom, 84 ... Arm.

Claims (1)

[Claims] 1. A construction machine having a traveling body, a revolving body, an elevating boom, and a rotating arm is provided with a rotatable crushing frame and a rotation mechanism for rotating the crushing frame at the tip of the arm, and A pair of crushing plates facing each other on the crushing frame and a pair of cutting blades facing each other are provided adjacent to each other, and at least one of the crushing plates and at least one of the cutting blades are provided. One of the cutting blades is provided rotatably relative to the crushing frame, and the crushing frame is provided with a rotation mechanism for rotating the crushing plate and a rotation mechanism for rotating the cutting blade. A mobile crusher featuring: