JPH03100271A - Roughtening device for concrete surface - Google Patents

Abstract

PURPOSE:To suppress the generation of noise by connecting an arm installed onto a dolly and a roughening machine in which a plurality of cutting machines are arranged in turnable manners on a same plane through a universal joint and adjusting the angle of the cutting surface of the cutting machine. CONSTITUTION:A roughening machine 5 is connected with the top edge of the arm of a dolly through a slide arm 3 which can be extended and contracted and a universal joint 4. The roghening machine 5 is constituted of a rectangular box body 52 and a plurality of cutting machine 53 group arranged on a same plane, and the angle of the cutting surface by the cutting machine 53 is adjusted arbitrarily. After the dolly is transferred to the vicinity of the concrete surface which is to be roughened, the cutting machine 53 group is pressed onto a wall surface, and the cutting machine 53 group is turned in a prescribed direction all together, and the concrete surface is ground. Therefore, the load on each cutting machine is made uniform, and the generation of noise and vibration can be suppressed.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is applied to a concrete surface visualizing device that forms a large number of uneven groups on the surface of a concrete structure. It is known to apply chipping (roughening) to create unevenness on the surface of an existing underground wall in order to use the wall as a component of a concrete structure.

Conventionally, this type of visual inspection device is roughly divided into two types: a percussion type and a rotary cutting type using a rotating drum having a large number of bits on the circumferential surface.

(problems to be solved by the present invention) Conventional viewing devices have the following problems.

〉 The percussion type makes a lot of noise and generates a lot of dust, which poses problems in terms of the working environment.

In the case of a rotary excavation type, the bit bites into the wall surface and chipping occurs due to impact, so if the rotational torque is insufficient, chipping becomes impossible.

On the other hand, if the rotational torque is increased, the pace machine side will move, making it necessary to reset the base machine, which is inconvenient.

Kuha〉 The bits of both the impact type and rotary excavation type are severely damaged.

Kuji〉　The actual work space is made up of many struts and a raised stand.

Temporary construction materials and the like are often scattered and narrow, making it extremely difficult to set up and move the roughing equipment.

OBJECT OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to move freely and quickly even in a narrow underground space, and also improves the working environment by suppressing the generation of noise and dust. Aim for
The purpose is to provide a concrete surface roughening device that can perform roughing work with high efficiency.

Means to solve problems〉 That is, the present invention relates to a trolley having a traveling function.

A roughening machine having a horizontal rotation function and a vertical swinging function, and having an arm equipped on the trolley and a plurality of cutting machines rotatably arranged on the same plane, and between the arm and the roughening machine. 1 of the concrete surface, which consists of a universal joint that connects the
It's a rough device.

Description of the present invention> The present invention will be explained in detail below.

Overall Structure In FIG. 1, reference numeral 1 denotes a truck having a running function, such as an excavator car, and is equipped with an arm 2 having a horizontal turning function and a vertical swinging function.

A rack 5 is connected to the tip of the arm 2 via a telescopic slide arm 3 and a universal joint 4.

As shown in Fig. 2, the slide arm 3 is a 7-mm member having a telescopic function, and has an inner cylinder 31 that is slidably inserted into the slide arm 3.
and an outer cylinder 32.

Note that the tip of the arm 2 may be made into a cylindrical shape, and this may be used as the outer cylinder 32 instead.

Further, as a means for extending and contracting the slide arm 3, a hydraulic jack 33 or a known extending and contracting mechanism can be employed.

By adjusting the amount of expansion and contraction of the slide arm 3, the cutting depth of the concrete surface A is adjusted.

kuha〉Universal joint The universal joint 4 is a connecting device for the purpose of supporting the grain roughening machine 5 so that it can swing freely in the vertical and horizontal directions.1 For example, between the end of the inner cylinder 31 and the end of the inner cylinder 31, there is a vertical pin 41, It is pivotally supported so as to be swingable in the vertical direction, and is connected to a bracket 51 protruding from the back surface of the visual inspection machine 5 by a horizontal pin 42 so as to be swingable in the vertical direction.

Since the sighting device 5 only needs to be able to swing in any direction and at any angle, it is not limited to the above-mentioned universal joint 4, and any known joint mechanism can be applied, and the swing control in each direction can be performed using a hydraulic jack or a gear. A known mechanism such as a combination can be employed.

2〉 Graining machine The graining machine 5 has a rectangular box main body 52 as shown in FIG.
and are arranged on the same plane on the front of the box body 52? ! It consists of 53 groups of several cutting machines.

A bracket 51 protruding from the back side of the box body 52 is connected to the universal joint 4, and is configured so that the angle θ of the cut surface by the cutting machine 53 can be adjusted arbitrarily.

Each cutting machine 53 is made up of a rotatable disc with a large number of bits embedded in it, and is placed in the front of the box body 52 at a point where no uncut parts are left when the eyeing machine 5 is moved in the vertical and horizontal directions. There is.

The box body 52 accommodates gears (not shown), a hydraulic motor serving as a drive source, etc. so that adjacent cutting machines 53 rotate in different directions.

Therefore, apart from the movement of the arm 2 shown in FIG. 1, the arm 15 is configured to be able to swing vertically and horizontally.

<Action of the present invention> Next, the present invention will be explained in detail.

After moving the cart 1 to the vicinity of the concrete surface A to be roughened, each group of cutting machines 53 of the vigilante II4 is pressed against the wall surface by raising and lowering the arm 2.

Then, each group of cutting machines 53 is rotated all at once in a predetermined direction to continuously scrape off the concrete surface A.

As a preferable cutting condition, it is preferable that the cutting surface of the grader 5 be inclined at an angle e with respect to the concrete surface A, as shown in FIG.

When the eyeing machine 5 is tilted by the angle e in this way, each cutting machine 5
The cutting load borne by 3 becomes even, and the generation of vibration and impact is reduced.

In particular, since each cutting machine 53 can cut continuously while making surface contact with the concrete surface A, cutting work can be performed with high efficiency.

The cutting depth of the concrete surface A can be arbitrarily changed by adjusting the extension and contraction of the slide arm 3 or by adjusting the angle e of the roughening machine 5.

Other Modifications> A reader may be attached to the arm 2, and the above-mentioned visual inspection device 5 may be provided on this reader.

In this case, the roughening machine 5 needs to be configured to be able to move up and down with respect to the leader, and to be able to swing vertically and horizontally.

Effects of the Present Invention> Since the present invention has the above-described structure, the following effects can be achieved.

(A) By tilting the cutting surfaces of multiple cutting machines at a fixed angle to the concrete surface, the load on each cutting machine becomes equal.

Therefore, the generation of noise and vibration is significantly reduced.

〉 Continuous cutting is possible while making surface contact with the concrete surface, making it possible to cut with higher efficiency than conventional methods.

Furthermore, the amount of dust generated can be suppressed.

Kuha〉 Since the roughening machine can be directed in any direction, work can be carried out over a wide range of areas while the cart is stopped in a fixed position.

[Brief explanation of drawings]

1l; Side view of the device of the invention Figure 2 Overall view of Koro Araiso

Claims (1)

[Claims] (1) A trolley with a traveling function, Has horizontal rotation function and vertical swing function. and an arm equipped on the trolley, Multiple cutting machines are arranged on the same plane so that they can rotate freely. Rows of grain roughers, Freely connects the arm and the grain roughening machine Consists of a joint, The angle of the cutting surface of each cutting machine of the roughening machine can be adjusted. Comprised of Concrete surface roughening device.