JPH08206979A - Attachment for crushing and crushing work machine having it - Google Patents

Abstract

PURPOSE: To safely and speedily perform crushing work by preventing a broken piece from scattering to the periphery, and relieve a noise such as a striking sound when crushing work is performed, when the crushing work of concrete or the like is performed in road repairing work or the like. CONSTITUTION: An attachment A for crushing is installed in a tip part of an arm 9 of a crushing work machine B, and a crusher 2 is installed inside. A bracket 12 is arranged on an upper face plate of a frame 1, and a rubber flexible cover 3 is installed in a front part and both side parts of the frame 1 so as to be mountable and demountable. A side part cover is tensioned in a side part of the frame 1, and a front cover 35 is tensioned in a front part. In the front cover 35, a frame body is placed by adjusting a pin hole and an inserting hole to each other, and pins whose upper part is bent in an L shape are inserted into and installed in these respective holes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crushing attachment to be attached to an arm of a working machine such as a hydraulic excavator excavator and the like, and a crushing machine equipped with the attachment.

[0002]

2. Description of the Related Art For example, an attachment equipped with a crusher, which is attached to an arm of a hydraulic excavator excavator, is mainly used for crushing concrete in road repair work. In the conventional attachment, the crusher part is exposed.

[0003]

However, the attachment provided with the conventional crusher as described above has the following problems. That is, when repairing a road, it is often the case that the work is carried out while the vehicle is passing on one side according to the instructions of the guide operator. However, when crushing concrete or the like with a crusher, the fragments of concrete are scattered around, which may cause damage to the automobile while it is passing through. Further, in some cases, the crushing work may have to be performed near the guiding worker or other workers, but it is dangerous because the scattered fragments may injure the worker. Further, in the crushing work using the crusher, a large impact sound is generated, which causes complaints from the peripheral portion particularly in the work in the residential area.

[0004]

The object of the present invention is to solve the above problems.
When crushing concrete etc. during road repair work etc., prevent fragments from scattering around,
The purpose of the present invention is not to damage a passing vehicle or to injure a worker who is working in the surrounding area, and to enable safe and speedy crushing work. Also, soften the noise such as the impact sound when performing crushing work,
The purpose is to alleviate complaints from the surrounding area.

[0005]

[Means for Achieving the Object] The means of the present invention for achieving the above object are as follows. The first means is an attachment for crushing, which is attached to a working machine to perform crushing work, and the attachment includes an attachment means for attaching to the working machine, the crusher, and at least a front portion of the crushing machine. And a cover which is arranged on both sides and which prevents the crushed material from scattering.

The second means is the crushing attachment according to the first means, wherein a part or all of the cover is formed of a flexible or soft material.

The third means is the crushing attachment according to the first or second means, in which a sound absorbing member having independent or continuous bubbles is stretched over the cover.

The fourth means is a working machine for crushing work, and this working machine is a crushing work machine to which the crushing attachments according to the first to third means are attached.

[0009]

[Operation] When the crushing attachment is attached to the working machine and crushing work such as concrete is performed, the crushed pieces hit the covers provided on the front and both sides of the crusher, so scatter in the direction covered by the cover. Can be prevented.

If the cover is partially or wholly made of a flexible or flexible material, the cover is appropriately deformed and the lower edge is always grounded even if the height of the crusher changes. Since it can be kept in contact with, the scattering prevention effect is more excellent.

The cover can close most of the periphery of the crusher. Therefore, a high-pitched, jarring noise such as a striking sound generated in a crushing operation using a crusher can be softened to a muffled sound. Therefore, complaints about noise from the surrounding area can be alleviated. In addition,
The effect is enhanced when the cover is provided with a sound absorbing member having independent or open cells.

[0012]

The present invention will be described in more detail based on the embodiments shown in the drawings. FIG. 1 is a partially exploded explanatory view showing a main part of a crushing work machine according to the present invention, FIG. 2 is a perspective view of a cover, and FIG. 3 is an explanatory view showing a structure of an attachment part of the cover. The crushing attachment A is attached to the tip of the arm 9 of the crushing machine B. The crushing attachment includes a frame 1, and a crusher 2 is attached inside the frame 1.

The top plate 11 of the frame 1 is provided with brackets 12 and 12 having pin holes 13 at two positions. A flexible cover 3 made of rubber is attached to the front and both sides of the frame 1. The cover 3 is removable. Rectangular side covers 31 and 32 are stretched on the outer surfaces of the side plates 14 and 15 of the frame 1. The side covers 31 and 32 are connected via the band plate 33 and the fixing bolt 34.
It is fixed to the upper and rear sides of the side plates 14 and 15.

A front cover 35 is stretched on the front of the frame 1. The front cover 35 has a rectangular shape, and a strip 36 and a fixing bolt 37 are provided on the inner surface side of the upper side of the front cover 35.
A “U” -shaped frame 38 is fixed. As a result, the upper portion of the front cover 35 is formed in a "U" shape. Frame 3
Pin holes 39, 39 penetrating in the up-down direction are provided in the front part of 8.

Further, insertion holes 16, 16 are formed in the front portion of the top plate 11 of the frame 1 so as to penetrate therethrough in the vertical direction. Then, as shown in FIG. 3, the front cover 35 has the frame body 38 placed with the pin holes 39, 39 and the insertion holes 16, 16 aligned with each other, and the upper part of each of these holes is bent into an L shape. The pins P and P are inserted and attached. A cover is not stretched at the rear of the crushing attachment A, and the cover is opened so that the crushed portion by the crusher 2 can be seen from the driver's seat.

(Operation) The operation of this embodiment will be described with reference to FIGS. 1 and 2. The crushing attachment A is attached to the tip of the arm 9 of the hydraulic excavator excavator B.
The arm 9 is operated to position the crusher 2 at the crushing section. Then, when the crushing work of concrete or the like is performed, the crushed pieces are separated by the side covers 31, which are provided on the front and both sides of the crusher.
It hits the cover 3 consisting of 32 and the front cover 35.

The cover 3, which is composed of the side covers 31 and 32 and the front cover 35, is made of a flexible rubber as a whole, so that even if the height of the crusher 2 is changed during the crushing work, the cover 3 is covered. 3 can be appropriately deformed so that the lower edge portion is always in contact with the ground. Therefore, it is possible to prevent the fragments from scattering in the direction covered by the cover 3. In addition,
At least the lower ground portion of the cover 3 may be flexible or flexible.

Further, the cover 3 can close most of the periphery except the rear side of the crusher 2. Therefore, a high-pitched, jarring noise such as a hitting sound generated in the crushing work using the crusher 2 can be softened to a muffled sound. Therefore, complaints about noise from the surrounding area can be alleviated.

Incidentally, FIG. 3 also shows another embodiment of the front cover 35. A sound absorbing sheet 30, which is a sound absorbing member, is stretched over almost the entire back surface of the front cover 35. The sound absorbing sheet 30 is made of a sponge having continuous air bubbles, and it is easier to absorb high-pitched, jarring noise generated inside the cover 3, and the effect of making it harder to leak to the outside can be further enhanced. The present invention is not limited to the illustrated embodiment, but various modifications are possible within the scope of the claims.

[0020]

The present invention having the above-mentioned structure has the following effects. (A) When the crushing attachment is attached to the work machine and crushing work such as concrete is performed, the crushed pieces hit at least the covers provided on the front and both sides of the crusher, and thus scatter in the direction covered by the cover. Can be prevented. Therefore, when crushing concrete, etc. during road repair work, etc., it is possible to carry out crushing work safely and promptly without damaging passing vehicles or injuring workers working nearby. it can.

(B) The cover can close most of the periphery of the crusher. Therefore, a high-pitched, jarring noise such as a striking sound generated in a crushing operation using a crusher can be softened to a muffled sound. Therefore, complaints about noise from the surrounding area can be alleviated. Further, a cover in which a sound absorbing member having independent or open cells is stretched can further enhance the effect.

(C) When the cover is formed of a flexible or flexible material, the cover is appropriately deformed and the lower edge is constantly in contact with the ground even if the height of the crusher changes. Since it can be kept, the scattering prevention effect is more excellent.

[Brief description of drawings]

FIG. 1 is a partially exploded explanatory view showing a main part of a crushing work machine according to the present invention.

FIG. 2 is a perspective view of a cover.

FIG. 3 is an explanatory view showing a structure of a mounting portion of a cover.

[Explanation of symbols]

 B Crushing work machine 9 Arm A Crushing attachment 1 Frame 2 Crusher 11 Top plate 12 Bracket 13 Pin hole 14, 15 Side plate 16 Insertion hole 3 Cover 31, 32 Side cover 33 Band plate 34 Fixing bolt 35 Front cover 36 Belt 37 Fixing bolt 38 Frame 39 Pin hole 30 Sound absorbing cover P pin

Claims (4)

[Claims] Claim: What is claimed is: 1. A crushing attachment which is attached to a working machine to perform crushing work, the attachment comprising a mounting means for mounting to the working machine, the crusher, and at least a front portion and both side portions of the crusher. An attachment for crushing, which is provided with a cover for preventing the crushed material from scattering, and. 2. The crushing attachment according to claim 1, wherein a part or all of the cover is made of a flexible or soft material. 3. The crushing attachment according to claim 1, wherein a sound absorbing member having independent or continuous air bubbles is stretched on the cover. 4. A crushing work machine for performing crushing work, wherein the crushing attachment according to claim 1 is attached to the work machine.