JPS5821584Y2 - brushing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a brushing device for cleaning and removing deposits from inside pipes of feed water heaters, steam generators, and the like.

Conventionally, this type of brushing device removes deposits by providing a brush 2 at the tip of a flexible tube 1 and rotating it within a tube 3, as shown in FIG.

However, in this device, since the brush 2 is fed manually using a button, the positioning becomes inaccurate and it is difficult to uniformly clean the inner surface of the tube 3, which is a problem especially when precise brushing is required.

Moreover, when the brush 2 rotates, the flexible tube 1
The button tends to swing in the radial direction, which can damage the inner surface of the tube.

moreover! The places where the octopus brushing device is used are generally confined spaces, and if this operation is performed manually, the work efficiency is poor and the work must be done in areas where dust is generated, which poses problems in terms of dust control. was there.

The present invention was developed in view of the above circumstances, and its purpose is to accurately position the brush at a desired location within the pipe to uniformly clean the inner surface of the pipe, and to do this work remotely. The present invention provides a brushing device that can improve workability and protect workers from dust.

That is, the present invention includes a brushing device that attaches a brush to the tip of a flexible tube and rotates the brush inside the tube for cleaning, a guide ring attached to the flexible tube, and a roller that feeds the tube under pressure. , a brushing device comprising a signal emitting volume connected to the roller, a positioning setting volume for setting the feed amount of the tube, and a roller driving motor that operates based on a displacement difference between these volumes.

The present invention will be explained below based on the drawings.

FIG. 2 is a partially cutaway front view of a brushing device, in which a flexible tube 12 is connected to a rotary drive motor housed in a motor box 11.
A brush 13 is attached to the tip of the tube 14 to clean the inside of the tube 14 while rotating.

The motor box 11 is attached and fixed to the lower part of the pedestal 15, and on the other hand, a flexible tube transfer device 16 is attached and fixed to the upper part of this pedestal 15.

This device 16 is placed in the transfer path of the flexible tube 12.
1 pair of auxiliary rollers 17, 17. 2 sets of driving comb rollers 1
8a, 18b, pressurizing rubber rollers 19a, 19b, and auxiliary rollers 20, 20 are provided in order, and the drive rubber roller 18a.

By rotationally driving the flexible tube 18b, the flexible tube 12 is sequentially transferred while being pressurized by the pressurizing rubber rollers 19a and 19b.

The roller shafts 21 of the drive rubber rollers 18a, 18b are connected to a gear box 22 as shown in FIGS.
It meshes with the worm 25 provided at 4.

This drive shaft 24 is connected to a roller drive motor 27 via a spur gear 26, and the rotational driving force of the motor 27 is applied to drive the rubber roller 18a.

18b.

A signal transmission volume 28, which will be described later, is directly connected to the twisted roller shaft 21.

Further, the roller shafts 29 of the pressure rubber rollers 19a, 19b are connected to a presser plate 30.30.
A pressurizing handle 3F shown in FIG. 2 is attached to the holder.

The drive rubber rollers 18a and 18b and the pressure rubber rollers 19a and 19b are connected by gears 32 and 33 or flat gears 34 and 35, respectively.
a and 19a and 18b and 19b rotate at the same time.

Further, at the rear end of the flexible tube transfer device 16, there is a feed upper limit switch 3 as shown in FIG.
6 is attached, and when the contact plate 38 of the dock 3T attached to the flexible tube 12 hits it, the motor 27
It is designed to stop driving.

On the other hand, a guide tube 39 is provided at the tip of the transfer device 16, and a support plate 4 is provided at the tip of the tube 39.
0 holds it in place.

The guide tube 39 is for inserting the flexible tube 12 and guiding it into the tube 14.

A plurality of guide rings 41 are arranged around the tube 12.
... are attached, and among these guide rings 41..., the guide ring 41a at the rear end also serves as a limit switch dog, and comes into contact with the origin return limit switch 42 provided at the tip of the transfer device 16. ing.

On the other hand, the signal transmission volume 28 directly connected to the driving rubber roller 18a changes as the transmission signal changes as the roller 18a rotates, as shown in FIG. The displacement difference signal from the signal passes through the amplifier 44 to the roller drive motor 2.
1.

Flexible tube transfer device 1 configured in this way
6 sequentially pressurizes and feeds the flexible tube 12 into the tube 14 using driving rubber rollers 18a, 18b and pressurizing rubber rollers 19a, 19b.

In this case, the guide ring 41, which also serves as a dock, sets the signal transmission volume 28 to the lowest value at the position where the home return limit switch 42 is applied, and this position is set as the home position.

When the positioning setting volume 43 is set to a predetermined setting position, a displacement difference is generated between the signal transmission volume 28 and the positioning setting volume 43, and the displacement difference signal is amplified through the amplifier 44, causing the motor 27 to rotate. A signal is sent, and as a result, the drive rubber rollers 18a and 18b are driven by the rotation of the motor 27, and the flexible tube 1
2 are sequentially fed into the tube 14 as shown in FIG. 6A and FIG.

As the drive rubber roller 18a rotates in this manner, the signal transmission volume 28 also rotates, and accordingly, the signal transmitted from the signal transmission volume 28 increases sequentially, and the difference in change from the positioning setting volume 43 decreases.

When the displacement difference between the volumes 28 and 43 becomes zero in this way, the drive of the motor 2T is stopped, the brush 13 is set in the state shown in FIG. 6C, and positioning is completed.

Next, the rotary drive motor 45 is driven to rotate the brush 13, and the set volume 43 is slightly increased and decreased around the scale of the set position, thereby repeatedly moving the brush 13 as shown in FIG. 5-2.

. After cleaning the inside of the tube 14 with the brush 13 in this manner, when the setting volume 43 is set to the lowest value, the brush 13 moves to the origin as shown in FIG. 6E.

When the displacement difference between the setting volume 43 and the signal transmission volume 28 disappears, the motor 27 stops and the flexible tube 12 returns to its original position, as shown in FIG. 6. At the same time, the guide ring 41a, which also serves as a dog, returns to its origin. The return is completed by hitting the limit switch 42.

According to the above embodiment, by setting the setting volume 43, the brush 13 can be automatically fed to a desired location within the tube 14 by remote control.

Moreover, since the flexible tube 12 is fed under pressure by the drive rubber rollers 18a, 18b and the pressurizing rubber rollers 19a, 19b, accurate positioning is possible and the inner surface of the tube 14 can be uniformly cleaned.

Moreover, since a guide ring 41 is provided around the flexible tube 12, the tube 1 can be torn during rotation.
2 is prevented from swinging by the guide ring 41, and the inner surface of the tube 14 is not damaged.

! The structure of the device can be simple, lightweight, and compact.

As explained above, according to the present invention, it can be operated remotely, improves work efficiency even when working in a narrow work space, protects workers from dust, and allows for accurate positioning to uniformly clean the inner surface of the pipe. This method is extremely suitable for precise cleaning, and has various remarkable effects such as preventing the flexible tube from swinging and damaging the inner surface of the tube.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing a conventional brushing device, Fig. 2 is a partially cutaway front view of the brushing device showing an embodiment of the present invention, and Fig. 3 is a sectional view taken along the line ■-■ in Fig. 2. , 4th
The figure is a sectional view taken along the line IV-IV in Figure 3, Figure 5 is an explanatory diagram of the electrical operation of the brushing device, and Figures 6A to 6 respectively show the operation of the brushing device in order of process. FIG. 12...Flexible tube, 13...Brush,
14... Pipe, 16... Flexible tube transfer device, 18at18b... Drive rubber roller, 19a, 1
9b...Rubber roller for pressurization, 27...Roller drive motor, 28...Signal transmission volume, 39...Guide tube, 41...Guide ring, 41a...Guide ring that also serves as a dock, 42... ...Home return limit switch, 43...Positioning setting volume.

Claims (1)

[Scope of utility model registration request] A brush is attached to the tip of the flexible tube, and the brush is rotated within the tube for cleaning, and the brush is connected to a guide ring attached to the flexible tube, a roller for feeding the tube under pressure, and the roller. A brushing device comprising: a signal transmission volume for setting a tube feed amount; a positioning setting volume for setting a tube feed amount; and a roller drive motor that operates based on a displacement difference between these volumes.