KR20120013737A - Double side telescopic boom for blasting robot in the double hull - Google Patents

Abstract

PURPOSE: A bidirectional telescopic boom for a blasting robot inside a double hull block is provided to prevent a mechanical jam of booms because the telescopic booms are bidirectionally extended and shrunk. CONSTITUTION: A bidirectional telescopic boom for a blasting robot comprises first, second, third, and forth-stage booms(1B,2B,3B,4B), rope supporters for fist, second, and third-stage booms, and sheaves and wire ropes for a contraction and extension. The first, second, third, and forth-stage booms are fixed to a motor bracket(21). Each stage boom is respectively installed in the lower rims of the each stage boom and swept a lower surface of the stage booms. The rope supporters for the first, second, and third-stage booms are respectively retracted inside the first, second, and third-stage booms. The sheaves for a contraction and extension are installed in the upper and lower parts of the rope supporters for the second and third-stage booms. One end of the wire rope for a contraction is fixed on the inner wall of the second and third-stage booms. The other end of wire rope for a contraction is passed through a sheave for a contraction and installed in a part of the second and third-stage booms. One end of the wire rope for a extension is fixed on the top of the third and forth-stage booms and the other end of the wire rope for an extension is passed through a sheave for a extension and joined to a fixing tool(T).

Description

DOUBLE SIDE TELESCOPIC BOOM FOR BLASTING ROBOT IN THE DOUBLE HULL}

The present invention relates to a bidirectional telescopic boom for a blasting robot inside a double hull block, and more particularly, a double hull which improves workability by eliminating mechanical interference during operation and freeing elongation and contraction of the boom regardless of the installation position of the boom. A bidirectional telescopic boom for an in-block blasting robot.

In general, in accordance with the enlargement of a ship, assembling a large block by assembling the blocks by a unit group in the manufacturing process of the ship, the large blocks are assembled with each other to produce a ship.

After assembling the block to manufacture a ship, painting is performed, and the surface of the block is blasted before painting.

The blasting of the block surface sprays grit on the block to remove various foreign substances and rust on the block surface, and when the removal of the foreign substance and rust on the block is completed, the grit sprayed on the block for blasting is removed. The grits are collected from the inside of the block so that they can be painted.

At this time, a telescopic boom as shown in FIGS. 1 to 3 is used for smooth operation of the blasting robot used for the blasting operation.

For example, the illustrated telescopic boom includes a first stage boom 1 fixed to an external structure, a second stage boom 2 vertically linearly moving inside the first stage boom 1, and a third stage boom vertically linearly moving inside the second stage boom 2. (3), the four-stage boom (4) that moves vertically linearly in the three-stage boom (3), and the LM guide (5), the first-stage boom (1) and the three-stage boom (3) which guides each boom smoothly and vertically. ), A sheave (pulley) to connect the two-stage boom (2) and four-stage boom (4) to move smoothly while preventing the separation of the wire rope (6), the wire rope (6) for transmission of power when contracting (7) and a ball screw 8 for converting the rotational motion of the motor 9 into a linear motion so that the second-stage boom 2 can be linearly moved perpendicularly to the first-stage boom 1.

Thus, the mounted blasting robot was guided to perform the blasting operation while moving the position.

However, such a conventional telescopic boom is designed to transmit power in only one direction, and on the other side, it is designed to free fall due to its own weight. Therefore, when the boom moves in the free fall direction, adjacent booms may be mechanically caught. There was a high risk of safety accidents.

In addition, since the dust-proof structure is not equipped, frequent operation defects occur due to inflow and fixation of dust during blasting operations in which a lot of dust is generated, resulting in a decrease in productivity due to a long maintenance time.

In addition, since the weight of the boom itself is large, the smoothness of the operation is reduced, and in order to extend and contract the boom, there is a limit that must be installed vertically in a structure designed to allow free fall.

The present invention was created in view of the above-mentioned problems in the prior art as described above, and has a dustproof structure that can prevent the dust generated due to the characteristics of the blasting operation is possible bidirectional telescopic operation, Its main purpose is to provide a bi-directional telescopic boom for blasting robots inside a double hull block that reduces weight and also reduces mechanical jamming between booms.

The present invention is a means for achieving the above object, and is fixed to the external structure, the motor bracket having a motor; A pinion fixed to the rotating shaft of the motor; A telescopic type 1,2,3,4 step boom fixed to the motor bracket and provided with each step boom wiper sweeping a surface of each of the lower step booms that enter and exit the bottom boom of each step boom; And 1,2,3 stage boom rope support is fixed so as not to interfere with the 1,2,3 stage boom respectively; Shrink and stretch sheave fixed to the top and bottom of the second and third stage boom rope support, respectively; One end is fixed to the second boom inner wall and the third boom inner wall, respectively, and the other end is connected to each other via a contraction sheath, and a wire rope for contracting is respectively connected to a fixture provided integrally with a part of the length of the second and third boom rope supports; One end is fixed to the top of the third boom and the top of the fourth boom, respectively, and the other end for the blasting robot inside the double hull block, characterized in that it comprises a wire rope for binding to each of the fixture via the extension sheave. Provide a two-way telescopic boom.

In addition, the outer circumferential surface of the two-stage boom is characterized in that a pair of LM guide is further provided with the rack in between.

In addition, the motor is characterized in that the reduction gear is further installed.

In addition, there is also a feature between the 1,2,3 stage boom face bearing is further provided between each of the 1,2,3 stage boom to reduce the play and perform a guide function.

Furthermore, there is also a feature between the 1,2,3 stage booms, each of which is further provided with a 1,2,3 stage boom guide roller between the 1,2,3 stage boom.

In addition, the first stage boom is characterized in that it is fixed to be arranged in any one direction selected from vertical downward, vertical upward, downward inclination, upward inclination, horizontal when fixed to the motor bracket.

According to the present invention, the dust generated during the blasting operation inside the double hull block can be prevented from entering between the telescopic boom to ensure the smoothness of the work, it is possible to stretch and contract in both directions to prevent mechanical jamming, The weight can be reduced, so that an efficient operation can be obtained.

1 is an exemplary perspective view showing before and after the extension of the telescopic boom used for the blasting robot according to the prior art.
2 is an exemplary top view of a telescopic boom according to the prior art.
3 is an exemplary front and side view of a telescopic boom according to the prior art.
4 is an exemplary perspective view showing a contracted state of the telescopic boom according to the present invention.
5 is an exemplary perspective view showing an extended state of the telescopic boom according to the present invention.
6 is an exemplary cross-sectional view of a telescopic boom in accordance with the present invention.
7 is an exemplary partial cutaway perspective view of a telescopic boom in accordance with the present invention.
8 is an exemplary plan cross-sectional view of a telescopic boom in accordance with the present invention.
9 is a perspective view showing an example in which the telescopic boom is installed vertically and inclined upward according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.

As shown in Figs. 4 to 5, the telescopic boom according to the present invention has a plurality of booms which are pulled out in multiple stages as before.

For example, the 1st stage boom 1B, the 2nd stage boom 2B, the 3rd stage boom 3B, and the 4th stage boom 4B are they, and they have a structure which draws out multiple stages.

At this time, the first stage boom 1B is fixed to the motor bracket 21, and the motor bracket 21 is fixed to the external structure while supporting the first stage boom 1B.

The motor bracket 21 is provided with a motor 20.

In addition, the second stage boom 2B is embedded in the first stage boom 1B so as to linearly move in a telescopic form.

In addition, the three-stage boom (3B) is built in the interior of the two-stage boom (2B) linear, and the four-stage boom (4B) is embedded in the interior of the three-stage boom (3B).

In addition, the first stage boom wiper 1W is installed at the end edge of the first stage boom 1B, from which the second stage boom 2B is drawn out, so that foreign matter (grit, dust, etc.) penetrates between the first stage boom 1B and the second stage boom 2B. Will be prevented.

In particular, the first stage boom wiper (1W) is a word so that when the second stage boom (2B) is pulled in and out (Sweep) to prevent foreign matter from entering.

In addition, a two-stage boom wiper (2W) is also installed on the edge of the two-stage boom (2B) to block foreign matter from penetrating between the two-stage boom (2B) and the three-stage boom (3B), the edge of the end of the three-stage boom (3B) In addition, a three-stage boom wiper (3W) is installed to block foreign matter from penetrating between the three-stage boom (3B) and four-stage boom (4B).

6 to 8, the reduction shaft 22 is installed on the rotating shaft of the motor 20 so that the driving force can be reduced, and the pinion 16 is disposed on the shaft passing through the reduction shaft 22. It is fixed.

In addition, the rack 15 is tooth-coupled to the pinion 16, the rack 15 is fixed in the longitudinal direction to the outer peripheral surface of the two-stage boom (2B).

In addition, an LM guide 1L is provided on the outer circumferential surface of the two-stage boom 2B with the rack 15 interposed in parallel with the rack 15.

Therefore, when the pinion 16 is driven, the rack 15 linearly moves in the vertical direction. At this time, the LM guide 1L guides the two-stage boom 2B smoothly with respect to the first-stage boom 1B. It is possible to withdraw and withdraw.

Meanwhile, the first stage boom 1B, the second stage boom 2B, and the third stage boom 3B are provided with a first stage boom rope support 1S, a second stage boom rope support 2S, and a third stage boom rope support 3S, respectively. At each upper end of the two-stage boom rope support (2S) and the three-stage boom rope support (3S), a shrinking sheave (pull) 13 is rotatably installed, respectively, the two-stage boom rope support (2S) and three-stage boom rope support Extension sheaves 14 are rotatably provided at the lower ends of 3S, respectively.

In addition, the fasteners (T) are respectively fixed in one side length length of the two-stage boom rope support (2S) and the three-stage boom rope support (3S).

In this state, the shrinking wire rope 11 and the extending wire rope 12 are provided. For example, the two-stage boom 2B includes one end of the shrinking wire rope 11 at the inner wall surface of the two-stage boom 2B. Fixed to the other end via the shrinking sheave 13 and then fastened to the fastener T, and one end of the extension wire rope 12 is the upper end of the three-stage boom 3B (refer to FIGS. 6 and 7). ), That is, fixed to one end leading into the first stage boom 1B, and the other end is bound to the fixture T via the sheave 14 for extension.

Similarly, the same applies to the three-stage boom 3B.

Therefore, when the motor 20 is driven and the second stage boom 2B is drawn out by the action of the rack 15 and the pinion 16, the extension wire rope 12 is pulled and the three stage boom 3B is pulled out together. In the same manner, the four-stage boom 4B is also taken out.

On the other hand, the retracting wire rope 11 is pulled in the opposite operation while being pulled in order in the order of the four-stage boom 4B, the three-stage boom 3B, and the two-stage boom 2B.

On the other hand, between the first stage boom 1B and the second stage boom 2B, a first stage boom face bearing 1F may be further provided to reduce the clearance therebetween and thereby perform a guide and dustproof function by eliminating the space between the booms.

In the same manner, two-stage boom face bearings 2F and three-stage boom face bearings 3F are further provided between the two-stage boom 2B and the three-stage boom 3B, and between the three-stage boom 3B and the four-stage boom 4B, respectively. It is preferred to be provided.

Furthermore, as illustrated in FIG. 8, a first stage boom guide roller 1R may be further installed between the first stage boom 1B and the second stage boom 2B so as to more smoothly guide the linear movement of each boom. have.

In the same way, a two-stage boom guide roller 2R and a three-stage boom guide roller 3R are further provided between the two-stage boom 2B and the three-stage boom 3B, and between the three-stage boom 3B and the four-stage boom 4B, respectively. Can be.

The telescopic boom according to the present invention having such a configuration is preferable to lighten the weight of each boom because the process in which each boom is drawn out and drawn in, that is, the elongation and contraction of each boom is made by a power (as is the case by gravity Since it is not free fall, there is no need to increase the weight), and thus it can be installed upward as shown in FIG. 9.

In addition, it can be installed even with a certain inclination, through which it can be designed to completely exclude mechanical interference with adjacent booms, it is possible to fundamentally block the boom caught.

In addition, the present invention has the advantage that can be eliminated problems such as malfunction of the boom due to the accumulation of foreign matters because the foreign material flowing from the outside through the double safety structure smoothly maintained the linear movement of each boom between the booms. Has

1B: 1st stage boom 2B: 2nd stage boom
3B: 3-stage boom 4B: 4-stage boom
1S: 1st stage boom rope support 2S: 2nd stage boom rope support
3S: 3-stage boom rope support 11: Shrink wire rope
12: wire rope for stretching 13: shrinking sheave
14: extension sheave 20: motor

Claims (6)

A motor bracket 21 fixed to an external structure and having a motor 20;
A pinion 16 fixed to the rotation shaft of the motor 20;
The telescopic type 1,2,3 fixed to the motor bracket 21, and each step boom wiper (1W, 2W, 3W) is provided on the bottom edge of each step boom to sweep the surface of each of the lower step boom to enter and exit Four stage booms 1B, 2B, 3B and 4B;
1,2,3 stage boom rope support (1S, 2S, 3S) is fixed so as not to interfere with the 1,2,3 stage boom (1B, 2B, 3B), respectively;
Shrinking and stretching sheaves 13 and 14 fixed to upper and lower ends of the second and third boom rope supports 2S and 3S, respectively;
One end is fixed to the inner wall of the second-stage boom 2B and the third wall of the three-stage boom 3B, respectively, and the other end is integrated into a part of the length of the second and third boom rope supports 2S and 3S, respectively, via the shrinking sheave 13. Shrink wire ropes each of which is fixed to the fixed fixture (T) provided with;
One end is fixed to the upper end of the third stage boom (3B) and the upper end of the fourth stage boom (4B), respectively, the other end is passed through the elongation sheave 14 and the extension wire rope 11 respectively bound to the fixture (T). Two-way telescopic boom for blasting robot inside the double hull block, characterized in that it comprises a.
The method according to claim 1;
The outer circumferential surface of the two-stage boom (2B) is a bidirectional telescopic boom for a blasting robot inside the double hull block, characterized in that a pair of LM guide (1L) is further provided with the rack (15) in between.
The method according to claim 1;
The motor 20 is a two-way telescopic boom for a blasting robot inside the double hull block, characterized in that the reducer 22 is further installed.
The method according to claim 1;
The 1,2,3 stage boom face bearings 1F, 2F, and 3F which respectively reduce the play and perform a guide function between the 1,2 stage and 3 stage booms 1B, 2B, and 3B are further provided. Bidirectional telescopic boom for blasting robots inside double hull blocks.
The method according to claim 1;
Double hull block, characterized in that the 1,2,3-stage boom guide rollers (1R, 2R, 3R) are further provided between each of the 1,2,3-stage booms (1B, 2B, 3B) to facilitate the draw-out and pull-out. Bidirectional telescopic boom for internal blasting robots.
The method according to claim 1;
When the first stage boom 1B is fixed to the motor bracket 21, the blasting inside the double hull block is installed so as to be disposed in any one direction selected from vertical downward, vertical upward, downward slope, upward slope, and horizontal. Bidirectional telescopic boom for robots.

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