JPS61229073A - Crushing apparatus - 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 the Invention The present invention relates to a crushing device for crushing concrete for concrete structures and asphalt for roads.

BACKGROUND ART Conventionally, a crushing device that is attached to a power shovel or the like and opens and closes a pair of arms using hydraulic pressure to crush concrete, etc. using a crushing claw or the like provided at the tip of the arm is already known. Ru. However, these known crushing devices are dedicated to crushing objects such as concrete crushing and asphalt crushing, and although they can crush objects other than those for which they are used, their use is limited. This was inconvenient and greatly reduced work efficiency.

Problems to be Solved by the Invention The present invention attempts to improve the above-mentioned drawbacks of the conventional example, and provides a crushing device that can be used efficiently even if the object to be crushed changes or the content of the work changes. It's about doing.

Means for Solving the Problems In a crushing device that crushes structures, etc. by opening and closing an arm driven by a drive device such as a hydraulic device, a plurality of holes for attaching claws are provided on the crushing surface of the arm, and on the other hand, A plurality of types of claws are prepared to be attached to the hole, and the optimum claw is selected depending on the object to be crushed and the contents of the work, and the nail is attached to the hole of the arm to destroy and crush structures and the like.

In the work of destroying structures and roads, the objects to be destroyed and crushed include concrete, asphalt, wood, and reinforcing bars produced by crushing concrete. Therefore, the present invention performs crushing work by selectively attaching the most suitable pawl to the most suitable hole in the arm of the main body of the crushing device according to the object to be crushed, thereby efficiently and economically destroying and crushing the object. Work is done.

Embodiment Fig. 1 is a front view of an embodiment of the present invention, Fig. 2 is a right side view of the same, Fig. 3 is a left side view of the same, and Fig. 4 is a front view when an arm is used in the same embodiment. FIG. 5 is a sectional view taken along the line AA in FIG. 1.

1 is a crushing device main body, and the crushing device main body 1 has side plates 2a fixed to a mounting plate 15 at regular intervals.

2b, ￥A A pair of arms 3a, 3b and the arm 3a are rotatably pivoted at their middle portions to the side plates 2a, 2b, and are disposed opposite to each other.

It is composed of links 4a and 4b rotatably attached to the rear end of 3b by shafts 5a and 5b, respectively, and a hydraulic cylinder 9, and the other end of the links 4a and 4b is a mounting member 5a fixed to the hydraulic cylinder. , 5b via shafts 7a and 7b, respectively, so as to be rotatable.

The piston rod 10 of the hydraulic cylinder 9 is fixed to the mounting plate 15 and the bracket member 8 to which the mounting plate 15 is attached, and when pressure oil is supplied to the hydraulic cylinder 9, the hydraulic cylinder 9 itself is fixed as shown in FIG. It is designed to move up and down. The hydraulic cylinder 9 is guided to move up and down by guide members 14a and 14b fixed to the hydraulic cylinder 9, which engage grooves 13a and 13b provided in the side plates 2a and 2b, respectively. The bracket member 10 has mounting holes 11 and 12 through which a bottle or the like can be mounted to the tip of an arm of a boom of a working machine such as a power shovel. At the ends of the arms 3a and 3b, there are joints 3a' that join together when the arms 3a and 3b are closed, as shown in FIG.

3b', and a plurality of holes 15 are provided in a matrix between the joint parts 3a', 3b' and the pivot points, and the holes 1
A pawl 20 is replaceably attached to 5 using a bolt 21, a nut 22, or the like. In this embodiment, a substantially truncated conical claw 20 is attached, and in FIGS. 2 and 3, holes in the first row, second row, third row, fourth row, and fifth row from the upper hole In this example, the claws 20 are attached to the holes 15 in the first, third, and fifth rows of the arm 3a,
Claws 20 are attached to the holes 15 in the second and fourth rows of the arm 3b.

Next, the operation of this embodiment will be explained.

The crushing device is attached to the arm of a boom of a working machine such as a power shovel through the attachment holes 11 and 12 of the bracket member 10 by activating hydraulic pressure and attaching the arm 3a, as shown in FIG.
3b is opened, concrete or the like of the structure is sandwiched between both arms 3a and 3b, and then hydraulic pressure is applied in the opposite direction, and the piston rond 10 moves to the mounting plate 15. Since it is fixed to the bracket member 11, the hydraulic cylinder 9 itself is guided by the guide members 14a, 14b and the grooves 13a, 13b and descends, and the two arms 3a, Trying to close 3b. This causes the claws 20 to crush the concrete structure.

Since the claw 20 used in this example has a truncated conical shape,
Concrete structures will be crushed into small pieces. In addition, the reinforcing bars exposed by crushing concrete structures are
In this embodiment, it is also possible to hook it on the handle and pull it out.

However, when crushing an asphalt paved road or the like, the claws 20 of the above embodiment sink into the asphalt, making it impossible to crush the asphalt.

In addition, even when crushing a concrete structure, it is not necessary to crush it into small pieces, but if you want to crush it into large pieces and crush it efficiently, use the truncated conical claws 2 used in the above example.
A different nail instead of 0 may be more effective.

Therefore, depending on the object to be crushed and the task, a plurality of types of claws suitable for the crushing are prepared, and the claws are changed and used depending on the object and the task.

6 to 10 show examples of this replacement pawl, and the examples shown in FIGS. 6 and 7 are truncated pyramid-shaped pawls 23, 24.
The claw 23 shown in Fig. 6 has a square bottom and a rectangular top with a pair of opposing sides equal to the length of one side of the bottom square and the other pair of sides shorter than one side of the bottom square. be.

Further, the claw 24 shown in FIG. 7 has a rectangular bottom and top surface,
The lengths of the bottom and top surfaces are equal, and the short sides of the top are shorter than the short sides of the bottom, which are pyramidal claws 24.

Further, the claw 25 shown in FIG. 8 has a square bottom surface, and the top is parallel to one side of the bottom surface and has sides of equal length.The claw 26 shown in FIG. 9 has a rectangular bottom surface. It is a claw whose top is parallel to and equal in length to the long sides of the bottom rectangle. Further, the claw 27 shown in FIG. 10 is a claw whose tip is bent into a dogleg shape. In addition, 23a, 24a
, 25a.

26a and 27a are bolts fixed to the claws 0, 23, 24, and 25°26, respectively, and are attached to the arm 3a of the crusher main body 1.
, 3b, and the claws 23 to 3b are fitted with the nuts.
26 to the arms 3a, 3b.

Therefore, these claws 20 and claws 23 to 26 are installed in the holes 15 of the arm in an arrangement suitable for the crushing work in accordance with the object to be crushed and the work. A conical pawl 20 may be attached as in the embodiment shown in FIGS. 1 to 5 above, or a pawl 23, 25 as shown in FIGS. 6 and 8 may be attached. Furthermore, when crushing asphalt or crushing a concrete structure into large pieces, claws 24 and 26 as shown in FIGS. 7 and 9 may be attached.

In addition, the claws 24 and 26 are shown in the hole 1 in FIGS. 2 and 3.
5 may be attached in the row direction (horizontal direction) or in the column direction (vertical direction), and may be attached in any direction and in any hole depending on the work and the object to be crushed. Furthermore, in order to remove reinforcing bars etc. after crushing concrete etc., truncated conical claws 20 may be attached as in the embodiments shown in Figs. In order to make it easier to handle, a claw 27 as shown in FIG. 10 may be attached, and the claw 27 may be used to make it easier to hook the reinforcing bar. Furthermore, the holes 15 of the arms 3a and 3b are moved up and down.

FIG. 6 shows the length between the holes 15 provided at equal distances on the left and right.

If the lengths of one of the bottom surfaces of the claws shown in FIG. 8 are made equal, by fixing these claws 23 and 24 in continuous holes 15, a claw as shown in FIG. 7 or 9 will be formed. Therefore, the number of types of nails can be reduced.

Furthermore, the claws 20 and claws 23 to 27 shown above are examples of claws used for crushing concrete or asphalt or removing reinforcing bars, but when destroying a structure, it can be used to destroy wood such as pillars, etc. If you want to take out the object without damaging it, you can attach claws made of soft material such as rubber to the arms 3a and 3b so that you can take out the object that you do not want to damage.

In the above embodiment, the joints 3a + and 3bf are provided at the ends of the arms 3a and 3b, but these joints themselves can also be attached as easily as the claws, so that they can be attached as needed to suit the purpose of use of the crushing device. A joint may also be attached. Furthermore, in the above embodiment, the piston rod of the hydraulic cylinder is fixed, and the cylinder is moved by hydraulic pressure to open and close the arm. good. Furthermore, a drive device other than hydraulics, such as a motor, may be used.

Effects of the Invention As described above, the present invention provides a crushing device for crushing structures, etc. with an arm that is opened and closed by a drive device such as hydraulic pressure, in which a plurality of holes for attaching crushing claws are provided in the crushing surface of the arm. On the other hand, multiple types of claws to be attached to the holes are prepared, and the optimal claws are attached to the holes of the arm in an optimal arrangement according to the object to be crushed and the work to be done. Various types of crushing work can be carried out efficiently using the main body of the crushing device. In addition, various tasks can be performed simply by replacing the claws, making it efficient and economical.

[Brief explanation of the drawing]

FIG. 1 is a front view of one embodiment of the present invention, FIG. 2 is a right side view of the same, FIG. 3 is a left side view of the same, and FIG. 4 is a front view of the same embodiment when the arm is opened. FIG. 5 is a sectional view taken along the line A-A in FIG. 1, and FIGS. 6 to 10 are views showing other examples of claws. 1... Crushing device main body, 2a, 2b... Side plate, 3a,
3b...Arm, 4a, 4b...Link, 9...
Hydraulic cylinder, 10... Piston rond, 15...
Hole, 20.23.24.25, 26.27...claw. Patent applicant Tagawa Kogyo Co., Ltd. Figure 6
Figure 8 Figure 10 Figure 4 Figure 5vA

Claims (2)

[Claims] (1) In a crushing device that crushes structures, etc. by opening and closing an arm using a drive device, the crushing device body has a plurality of holes for attaching claws on the crushing surface of the arm, and a plurality of types of claws to be attached to the holes. A crushing device consisting of a combination of the following, in which the most suitable claw is attached to the hole according to the object to be crushed. (2) The crushing device according to claim 1, wherein the holes are arranged in a matrix.