JP2925110B2 - Rotary surface peeler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary type surface peeling (stripping) apparatus, and more particularly, to a construction machine for a drum bracket having a rotary drum provided with a plurality of claws on an outer peripheral portion. The present invention relates to a rotary surface peeling device which is attached to a boom such as the above, and peels or scrapes a road surface, a wall surface of a building or the like by rotating the rotary drum.

[0002]

2. Description of the Related Art Conventionally, for example, in a self-propelled construction machine having an endless track zone, a main body is provided with a hydraulic pump, a hydraulic rotary motor, a hydraulic piston / cylinder unit, and the like, and a boom that can be extended and contracted and tilted is also provided. Have. Then, for example, a bucket is attached to the tip of the boom. The bucket can be pushed or pulled by a hydraulic piston / cylinder unit or the like. Therefore, earth and sand can be excavated by operating the bucket with the hydraulic piston / cylinder unit. Alternatively, the bucket may be used as a peeling device, and the tip of the bucket may be inserted into the underside of asphalt, concrete, or the like on the road, and the bucket may be lifted to peel them off.

[0003] Further, there is known a construction machine having a fork-type bucket in which a plurality of claws are provided at the tip of the bucket. Excavation can also be performed by the fork-type bucket. In this case, as in the case of the above-described bucket, forks can be inserted under the asphalt, concrete, or the like of the road, and peeled off.

[0004]

However, the conventional construction machine has various problems when used as a peeling device. For example, a bucket pushes,
Since it is a reciprocating type that pulls, there is a disadvantage that even if the peeling operation is performed at the time of going forward, a play state occurs at the time of returning, and the working efficiency is poor. In addition, since a road is generally composed of a foundation solidified from soil, gravel, and the like, and a road surface thereover, that is, asphalt, concrete, etc., the tip of the bucket is inserted between the concrete and the foundation to remove the concrete. It can be peeled off from the base. However, since concrete is peeled as a large lump, the peeled concrete is heavy and cannot be directly removed by hand. Further, there is a disadvantage that the concrete of the conventional bucket of the construction machine cannot cut the concrete to a predetermined thickness.

[0005] Furthermore, since construction or civil engineering work often involves rough work, a protective device for machinery and equipment is required, and safety measures are also required. No special measures have been taken for buckets. The present invention solves the above-mentioned problems of the conventional construction machines, and efficiently constructs road surfaces, wall surfaces of buildings, and the like.
Moreover, it is an object of the present invention to provide a rotary surface peeling device capable of safely peeling or scraping.

[0006]

In order to achieve the object, a rotary surface peeling apparatus according to the present invention comprises a rotary drum having a plurality of claws on an outer peripheral portion, a hydraulic motor for rotating the rotary drum, and a boom. A drum bracket which is arranged to be swingable and supports the rotary drum and the hydraulic motor, and which is attached to the drum bracket, covers at least one side of the rotary drum, and is concentric with the rotary drum below. And a protective cover having an arc portion.

In another rotary surface peeling apparatus according to the present invention, the hydraulic motor is further provided in a rotary drum.

[0008] In still another rotary type surface peeling apparatus of the present invention, the protective cover is attached to a drum bracket such that the height of the protective cover is adjustable with respect to the rotary drum.

[0009]

According to the present invention, in the rotary surface peeling apparatus as described above, a rotary drum having a plurality of claws on an outer peripheral portion, a hydraulic motor for rotating the rotary drum, and a swinging motion with respect to the boom. A drum bracket movably disposed to support the rotary drum and the hydraulic motor; and an arc attached to the drum bracket, covering at least one side of the rotary drum, and concentric with the rotary drum below. And a protective cover having a portion. In this case, for example, an existing construction machine equipped with a hydraulic pump, a hydraulic rotary motor, a hydraulic piston / cylinder unit, a telescopic and tiltable boom, etc. is used, and the drum bracket is a tip of the boom of the construction machine. It is attached to the part via, for example, a hinge bracket.

Then, the boom is operated by using pressure oil discharged from a hydraulic pump mounted on a construction machine, and the rotating drum is brought into contact with the surface of a road, the wall of a building, or the like, and the hydraulic motor is driven. When the rotary drum is rotated by supplying the pressurized oil, the surface of the road, the wall surface of the building, and the like can be efficiently and safely peeled or scraped off by the plurality of claws of the rotary drum.

In another rotary surface peeling apparatus according to the present invention, the protective cover is attached to a drum bracket such that the height of the protective cover can be adjusted with respect to the rotary drum. In this case, the height of the protective cover with respect to the rotating drum is adjusted in accordance with the construction conditions for peeling off the road and the like, the diameter of the rotating drum, the height of the claws, and the like.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of a rotary surface peeling apparatus showing a first embodiment of the present invention. As shown in FIG. 1, the rotary surface peeling device according to the present embodiment includes a drum bracket 1 having a substantially cap-shaped upper portion, a protective cover 30 covering one side of the drum bracket 1, and an inner side of the protective cover 30. , A rotary drum 20, a hydraulic motor 26, and the like. And drum bracket 1
Is swingably attached to a tip of a boom 50 of a conventionally known construction machine via a hinge bracket 40.

As shown in FIGS. 2 and 3, the drum bracket 1 includes a top plate portion 2 having a substantially rectangular shape in plan view. From the opposite side edges of the top plate portion 2, swash plates 3, 3 'extending in a tapered manner so as to extend obliquely downward are provided integrally. The upper part of the drum bracket 1 includes the top plate 2 and the swash plate 3,
3 'forms almost a cap.

The mounting brackets 4, 4 'are integrally formed on both side edges of the swash plates 3, 3' in such a manner as to be cut and raised from below. These mounting brackets 4,
A plurality of through holes 5, 5, ... for bolt insertion are formed in the 4 'at predetermined intervals in the vertical direction. A support plate 6 is further provided integrally from the top plate 2 by means such as welding. As best shown in FIG. 2, the support plate 6 is provided perpendicular to the top plate 2 from a point inside the side edge of the top plate 2 by a predetermined distance. in this way,
Since the support plate 6 is provided at a point inside the top plate portion 2, the outer edge portion of the top plate portion 2 also functions as a reinforcing rib. The reinforcing ribs 7 are separately provided over the top plate 2 and the support plate 6.

As shown in FIG. 3, a relatively large through hole 8 is formed in the lower part of the support plate 6 which is substantially fan-shaped when viewed from the side.
Has been opened. A short tubular body 10 is integrally attached to the inside of the support plate 6 by welding or the like so as to align with the through hole 8, and a flange 11 is attached to the tip of the tubular body 10.
Are similarly provided. The flange 11 has a female screw or a through hole 1 for mounting a hydraulic motor 26.
2, 12, ... are open.

The hydraulic motor 26 suitably incorporates a speed reducer and the like, is provided with a mounting flange 27 at an end portion, and has a ring-shaped output member 28 at a central portion. As such a hydraulic motor 26, a commercially available product that can be obtained relatively inexpensively is used. As shown in FIG. 2, the rotating drum 20 includes a cylindrical drum 21, a plate-shaped arm 22 provided inside the drum 21, and a staggered , And a plurality of claws 23, 23,...
A large hole is formed in the center of the arm 22 so that the main body of the hydraulic motor 26 can pass therethrough at the time of assembly. A plurality of bolts for attaching to the output member 28 of the hydraulic motor 26 are formed around the hole. A hole is formed.

The width of the drum 21 can be changed in accordance with the operation of peeling or scraping a road surface, a wall surface of a building, or the like. By the way, the protective cover 30 shown in FIG. 1 has a semi-circular or arc-shaped side plate 31. A guide member 32 having a predetermined width is attached to the lower circular arc portion of the side plate 31 in a direction perpendicular to the side plate 31. Since the side plate 31 has a semicircular or arc shape in this manner,
When attached to the drum bracket 1 as described later,
It is concentric with the rotating drum 20 and maintains a constant positional relationship regardless of the swing position of the rotating drum 20.

The protective cover 30 includes a pair of hanging members 33, 3
3 '. The interval between the hanging members 33 and 33 'is the same as the mounting bracket 4 of the drum bracket 1 described above.
4 '. Also, the intervals between the plurality of through holes 34 formed in the up-down direction are the same. In FIG. 1, reference numeral 35 denotes a notch formed on the upper edge of the side plate 31, and reference numeral 36 denotes a reinforcing rib provided over the side plate 31 and the guide member 32.

The hinge bracket 40 is formed of a plate having substantially the same shape as the top plate 2 of the drum bracket 1.
A pair of brats 41, 41 are fixed on the upper surface. The brats 41, 41 are provided with a first bearing 42 and a second bearing 43 at predetermined intervals. And
The hinge bracket 40, that is, the rotary surface peeling device includes a main boom 51 and a sub boom 52,
The first bearing 42 and the second bearing 43 are rotatably attached to the distal end of the second bearing 2. Therefore,
By expanding and contracting the hydraulic piston / cylinder unit 55,
The rotary surface peeling device swings about the first bearing 42.

Next, the operation of the above embodiment will be described. The assembly order is not particularly limited, but first, the main body of the hydraulic motor 26 is inserted into the hole of the arm 22 of the drum 21. Then, the arm 22 is fixed to the output member 28 of the hydraulic motor 26 with bolts 25, 25,. Thereby, the drum 21 and the hydraulic motor 26 are assembled integrally.
Connect the flange 27 of the hydraulic motor 26 to the drum bracket 1
To the flange 11 of the support plate 6. Then, the through hole 8 of the drum bracket 1 and the notch 35 of the protective cover 30 are formed.
A hose or the like (not shown) for supplying and discharging pressure oil to and from the hydraulic motor 26 is connected.

Next, the protective cover 30 is attached to the drum bracket 1. At this time, the positions of the through holes 5, 5 of the mounting brackets 4, 4 'of the drum bracket 1 and the positions of the through holes 5, 5, of the hanging members 33, 33 of the protective cover 30 are adjusted to an appropriate height. Attach. Thus, the protective cover 30
Is detachably attached to the drum bracket 1, so that the rotating drum 20,
Maintenance and inspection of the hydraulic motor 26 and the like can be performed.

A relatively thin side cover 37, which forms a pair with the protective cover 30, is fixedly attached to the side opposite to the protective cover 30 with bolts or the like. Finally, the hinge bracket 40 is connected to the drum bracket 1 with bolts and nuts.
Is fixed to the top plate 2. This assembles a rotary surface peeling device as shown in FIG.

The rotary surface peeling device assembled as described above is used, for example, in the main boom 51 of a conventionally known construction machine.
The first and second bearings 42 and 43 are attached to the distal ends of the sub booms 52 and 52 so as to be rotatable with pins. Then, the hydraulic piston / cylinder unit 55 is expanded and contracted to an appropriate angle. When the rotary drum 20 is brought into contact with the surface of a road or the like on which construction is to be performed and pressure oil is supplied to the hydraulic motor 26 to drive the rotation drum 20, the construction surface is peeled or scraped off. Sprinkle as needed.

Next, a second embodiment of the present invention will be described. FIG. 4 is a side view of a rotary type surface peeling apparatus showing a second embodiment of the present invention. In this case, the drum bracket 1
Bearing 70 is disposed between the hinge bracket 40 and
Both are relatively rotatable. Therefore, the gear 71 provided at the upper end of the drum bracket 1 can be rotated by a pinion (not shown), and the drum bracket 1 can be set at an arbitrary angle. The pinion can be rotated by a hydraulic motor (not shown).

In each of the above-described embodiments, the rotary drum 20 is provided so as to be freely attachable to a boom of a construction machine or the like.
It is possible to perform the stripping operation or the scraping operation efficiently and at low cost. In addition, since the drum bracket 1 includes a cap-like portion having a shape that wraps the rotary drum 20 and the hydraulic motor 26 from above, the rotary drum 20, the hydraulic motor 26, and the like can be protected from falling objects. Further, there is no possibility that the worker is accidentally caught in the rotating drum 20 or the like. It should be noted that the present invention is not limited to the above-described embodiments, but can be variously modified based on the gist of the present invention, and they are not excluded from the scope of the present invention.

[0026]

As described above in detail, according to the present invention, in a rotary surface peeling apparatus, a rotary drum having a plurality of claws on an outer peripheral portion, and a hydraulic motor for rotating the rotary drum are provided. A drum bracket slidably mounted on the boom and supporting the rotary drum and the hydraulic motor; and a drum bracket attached to the drum bracket, covering at least one side of the rotary drum, and rotating downward. A protective cover having a concentric arc portion with the drum. In this case, when the rotary drum is rotated by driving the hydraulic motor, the surface of the road, the wall surface of the building, and the like can be efficiently and safely peeled or scraped off by the claws. In addition, since the protective cover covers at least one side surface of the rotating drum, it can not only protect the rotating drum and the hydraulic motor, but also contribute to the safety of workers. And since the protective cover is provided with a circular arc portion concentric with the rotating drum on the lower side, regardless of the swinging position of the drum bracket, that is, the swinging position of the rotating drum, the protective cover is provided on the road surface, the wall surface of the building, or the like. On the other hand, a constant positional relationship can always be maintained.

In another rotary surface peeling apparatus according to the present invention, the hydraulic motor is further provided in a rotary drum. In this case, not only can the rotary surface peeling device be miniaturized, but also the expensive hydraulic motor can be protected by the rotating drum. In still another rotary type surface peeling apparatus according to the present invention, the protective cover is attached to a drum bracket such that the height of the protective cover is adjustable with respect to the rotary drum. In this case, the height of the protective cover with respect to the rotating drum can be adjusted, so when peeling off roads, etc., the rotary surface peeling device can respond to changes in construction conditions, diameter of rotating drum, height of claws, etc. Can be done.

[Brief description of the drawings]

FIG. 1 is a perspective view of a rotary surface peeling device showing a first embodiment of the present invention.

FIG. 2 is a sectional view showing an embodiment of a drum bracket and a rotary drum.

FIG. 3 is a side view of the drum bracket.

FIG. 4 is a side view of a rotary surface peeling device showing a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drum bracket 2 Top plate part 4, 4 'Mounting bracket 20 Rotary drum 22 Claw 26 Hydraulic motor 30 Protective cover 33, 33 Hanging tool 50 Boom (boom of construction machinery)

Claims (3)

(57) [Claims] (A) a rotary drum having a plurality of claws on an outer peripheral portion; (b) a hydraulic motor for rotating the rotary drum ; a drum bracket for supporting the rotary drum及beauty oil pressure motor, mounted in (d) of the drum bracket, the rotating de
Cover at least one side of the ram and rotate down
With a protective cover having a concentric arc portion with the drum
Rotary surface peeling apparatus characterized by that. 2. A rotary surface release apparatus according to claim 1 wherein the hydraulic motor is disposed of <br/> is into the rotary drum. Wherein the protective cover is rotatable surface release apparatus according to claim 1 or 2 is attached to the drum bracket by freely adjust the height with respect to the rotary drum.