JPH0353753Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a cleaning machine for cleaning waterways of plants, etc. installed on the seashore, and in particular, a mechanism for controlling its attitude and adsorption to the wall surface of the waterway. Regarding a cleaning machine equipped with

[Conventional technology]

In general, various marine organisms such as shellfish and seaweed grow on the walls of waterways for plants that use large amounts of seawater, such as power generation, chemical, steel, water production, and salt production, creating resistance to the waterway and preventing plant operations. This poses various obstacles to people.

For example, in the case of a power generation plant, the performance of the circulating water pump decreases due to the growth of marine organisms in the waterways, and when the marine organisms die and flake off, they clog the condenser pipes and disrupt operation. This can lead to corrosion of the condenser.

Conventionally, marine organisms have been removed and transported by remotely controlling a self-propelled waterway cleaner equipped with a rotating brush.

That is, as shown in FIGS. 3 and 4, in the main body 5 of the waterway cleaning machine A having driving wheels 17 for running, an impeller 15 for adsorption on the cleaning surface is provided in a duct 16, and these impellers 15 and the duct 16 and a hydraulic motor (not shown) constitute a hydraulic motor-driven axial flow pump as a suction mechanism, and a rotary main brush (or scraper) 19 (not shown) is mounted on a rotating shaft separate from the rotating shaft of the impeller 15. It is provided so as to be driven by an oil motor as a rotational drive mechanism.

Furthermore, rotary side brushes 20 for cleaning the corner portions of the waterway are provided on both sides of the main body of the waterway cleaning machine S, and are driven by an oil motor (not shown). Guide tire 18 that guides 5 along the waterway wall surface
is rotatably provided.

In addition, impellers 6' which are rotated independently are provided at the four corners of the waterway cleaner S and are covered with impeller guards 14, and these impellers 6', impeller guards 14, and impellers 6' (not shown) are provided at the four corners of the waterway cleaning machine S. The impeller drive mechanisms each constitute a reversible thruster, and these reversible thrusters constitute an attitude control mechanism.

Note that each device is controlled by control devices 12 and 13, and reference numeral 26 in the figure indicates an underwater television camera for transmitting images to a ground control room via a cable or the like (not shown).

In the conventional waterway cleaning machine configured as described above, the waterway cleaning machine S is remotely controlled by operating via a control system (not shown), and the waterway cleaning machine S at that time is fed out from the impeller 15. Using the reaction force generated when the seawater is ejected from the duct 16, the interior of the waterway is cleaned by the running drive wheels 17 and guide tires 18 while adhering to cleaning surfaces 27 such as the ceiling, side walls, and bottom walls of the waterway. The cleaning work in the waterway is performed by traveling along the surface 27 and rotating the main brush 19 and side brushes 20.

When the waterway cleaning machine S needs to climb over an obstacle existing in the waterway, or when the waterway cleaning surface 27 has a steep slope and the waterway cleaning machine S has to climb up and down the same slope. Or, when changing the cleaning wall surface in the waterway, the attitude of the waterway cleaner S is controlled by independently rotating and driving each of the plurality of impellers 6' that constitute the attitude control mechanism.

[Problem that the invention attempts to solve]

However, in the conventional waterway cleaning machine as described above, the cleaning surface of the waterway cleaning machine It is adsorbed (adhered) to 27, and its adsorption force is determined by the speed of the flowing water and the amount of water ejected.

Therefore, such conventional waterway cleaners have the following problems.

(1) In addition to two hydraulic motor-driven axial flow pumps, a propeller (impeller) for attitude control is required, and accessory equipment such as a hydraulic drive motor and control valves must be installed for this purpose.

(2) The amount of hydraulic fluid supplied is large, which increases power costs and also increases the diameter of the power supply hose.
Due to the structure of the hose reel, the length of the hose, that is, the operating distance of the waterway cleaning machine, was restricted.

(3) There were few opportunities for the hydraulic motor-driven axial flow pump and the propulsion device to operate at the same time, and one or the other was often left idle.

(4) In order to make it portable, it is essential to reduce the size and weight while maintaining the specified cleaning ability, but it is difficult to achieve both.

This invention aims to solve these problems, and is an attitude-adjustable suction type waterway cleaner that reduces size and weight while improving absorption performance on cleaning surfaces. The purpose is to provide a machine.

[Means for solving problems]

For this reason, the attitude-adjustable suction type waterway cleaner of the present invention is equipped with a pair of left and right running wheels at the front and rear of the main body of the waterway cleaner, and a pair of left and right running wheels at the center of the main body. A rotary brush is provided, and the main body includes a duct attached to the main body and an impeller inside the duct near a pair of left and right running wheels at the front and rear of the main body in order to attract the main body to the cleaning surface. A suction mechanism is provided, and a suction control system for the suction mechanism is provided, and in order to make the suction mechanism also serve as the attitude control of the main body, the impeller is configured to be reversible, and the impeller is controlled. The device is characterized by being provided with an attitude control system that can adjust the attitude of the main body.

[Effect]

In the above-mentioned attitude-adjustable suction waterway cleaning machine of the present invention, the attitude of the main body can be adjusted and the main body can be attracted to the cleaning surface using the duct and impeller that serve as both the attitude control system and the suction control system.

〔Example〕

Hereinafter, an embodiment of the present invention will be explained with reference to the drawings. Figures 1 and 2 show an attitude-adjustable suction type waterway cleaning machine as an embodiment of the present invention.
The figure is a plan view thereof, and FIG. 2 is a side view thereof. In FIGS. 1 and 2, the same reference numerals as in FIGS. 3 and 4 indicate substantially the same parts.

As shown in Figures 1 and 2, at the front and rear,
In the main body 5 of the waterway cleaning machine S, which has a pair of left and right running drive wheels 2, an impeller (screw) 4a for adsorption to the cleaning surface 27 and for attitude control is installed in each duct (circular screw) near the drive wheels 2. These impellers 4a, ducts 4b, and oil motors (not shown) constitute four sets of reversible variable speed propulsors 4.

Further, a rotary main brush 3 is provided on a rotation shaft separate from the rotation shaft of the impeller 4a so as to be driven by an oil motor (not shown).

Further, on both sides of the main body of the waterway cleaner S, there are rotatable guide tires (buffer tires) 10 that guide the protective guard pipe 9 of the waterway cleaner S and the main body 5 of the waterway cleaner S along the waterway wall surface. It is provided.

Further, a control device 6 is provided which constitutes an attitude control system and a suction control system for adjusting the rotational direction and rotational speed of the four reversible variable speed propulsors 4. A control device 7 is provided for controlling the oil motor.

The positions of these control devices 6 and 7 may be mutually changed, or the two control devices 6 and 7 may have two control functions.

Furthermore, the control device having these two functions does not need to be provided in the waterway cleaning machine S, but may be provided on the ground station side via a cable or the like.

Note that the reference numeral 8 in the figure indicates an underwater television camera.

Since the attitude-adjustable adsorption waterway cleaning machine as an embodiment of the present invention is constructed as described above, by operating the attitude-adjustment control device 6, the impeller 4a of each reversible variable-speed propulsion device 4 can be operated. Since the direction of the rotation axis and the speed thereof can be controlled remotely, the direction and magnitude of the thrust of each thruster 4 can be freely changed, and the attitude of the waterway cleaning machine S can be freely adjusted.

When pressing (adsorbing) the waterway cleaner S onto the cleaning surface 27, a predetermined amount of thrust (pressing force) is applied according to the control signal from the suction control device 6 to each reversible variable speed propeller 4. can be obtained, and in this state, cleaning work in the waterway etc. is carried out.

Therefore, the waterway cleaning machine S of this embodiment has high maneuverability, and even if the waterway to be cleaned has a complicated shape, the attitude can be adjusted quickly and accurately according to the shape. This eliminates the need for diving operations, dramatically increasing the efficiency of cleaning operations.

[Effect of idea]

As described in detail above, according to the attitude-adjustable suction type waterway cleaner and waterway cleaner of the present invention, the main body of the waterway cleaner is provided with a pair of left and right running wheels at the front and rear parts, respectively, and A pair of left and right rotating cleaning brushes are provided in the center of the body, and the brushes are attached to the main body near the pair of left and right running wheels at the front and rear of the main body in order to attract the main body to the cleaning surface. A suction mechanism consisting of a duct and an impeller in the duct is provided, as well as a suction control system for the suction mechanism, and the impeller is configured to be reversible so that the suction mechanism can also be used to control the attitude of the main body. In addition, the following effects and advantages can be obtained with an extremely simple configuration in which an attitude control system that can control the impeller and adjust the attitude of the main body is provided.

(1) The axial flow pump can be removed in order to obtain the pressing force against the wall surface, which conventionally occupied a large volume.

(2) The maneuverability when adjusting the attitude of the main body of the canal cleaning machine is greatly improved, the canal cleaning machine can be made smaller, and the efficiency of cleaning inside the canal can be dramatically increased.

(3) Operation in curved and narrow waterways, increased operating distance, and ease of transportation can be improved.

[Brief explanation of drawings]

Figures 1 and 2 show an attitude-adjustable suction waterway cleaning machine as an embodiment of the present invention. Figure 1 is a plan view thereof, Figure 2 is a side view thereof, and Figures 3 and 4 are
The figures show a conventional waterway cleaner, with FIG. 3 being a plan view thereof, and FIG. 4 being a side view thereof. 2... Drive wheel for traveling, 3... Rotating main brush, 4... Reversible variable speed propeller, 4a... Impeller (screw), 4b... Duct (cylindrical screw guard), 5... Waterway Cleaning machine body, 6
...Control device constituting the attitude control system and adsorption control system, 7...Control device, 8...Underwater television camera, 9...Guard pipe, 10...Guard tire (buffer tire), 14...Impeller guard, 15...
... Impeller for cleaning surface adsorption, 16 ... Duct, 17
...Traveling drive wheel, 18...Guide tire, 1
9... Rotating main brush, 20... Rotating side brush, 26... Underwater TV camera, 27...
Cleaning surface, S... Waterway cleaning machine.

Claims (1)

[Scope of utility model registration request] A pair of left and right running wheels are provided at the front and rear of the main body of the waterway cleaning machine, and a pair of left and right rotating cleaning brushes is provided at the center of the main body. A suction mechanism consisting of a duct attached to the main body and an impeller within the duct is provided near each of the pair of left and right running wheels at the front and rear portions of the main body, and an adsorption control system for the suction mechanism is provided. and in order to make the suction mechanism also serve as the attitude control of the main body, the impeller is configured to be reversible, and an attitude control system is provided that can control the impeller and adjust the attitude of the main body. An attitude-adjustable suction waterway cleaning machine featuring: