JPS626000Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a bottom surface cleaning device for an aircraft, etc., for cleaning the bottom surface of a structure such as the lower surface of a fuselage or the lower surface of a wing of a parked aircraft.

Conventionally, cleaning the bottom of an aircraft fuselage has been carried out manually. Specifically, a worker goes under the aircraft and sprays cleaning liquid or water upwards with a hose while using a hand-held cleaning brush. However, such manual cleaning work not only results in poor work efficiency, but also causes workers to cover their heads with cleaning sewage and cleaning fluid.
Therefore, it is not preferable from the point of view of work hygiene, and the conventional cleaning method has the problem that no improvement in work efficiency can be expected.

Furthermore, Japanese Utility Model Application No. 53-166566 proposes a method for cleaning the bottom surfaces of aircraft, etc. using a horizontal rotating brush that swings up and down. However, even with such a proposed method, there is a problem in that the workers and the machine operating the rotating brush are covered with cleaning waste water or cleaning fluid.

Furthermore, Japanese Utility Model Application Publication No. 166566/1983 proposes a method for cleaning the bottom surfaces of aircraft, etc. using a horizontal cylindrical rotating brush that swings up and down.

This proposed method is a cleaning method that does not involve spraying water or other liquid, but if the liquid is supplied to the cleaning surface using a separate hose, etc., the liquid will be scattered far away due to the wind pressure of the cylindrical rotating brush. There was a problem.

The present invention has been developed to solve the above-mentioned problems, and when cleaning the bottom surface of an aircraft, etc. using a horizontal cylindrical rotating brush, it is necessary to maintain a state in which a suitable amount of dampness is always provided by the cleaning liquid. To provide a bottom surface cleaning device for an aircraft, etc., which can efficiently perform cleaning and prevent cleaning liquid from being scattered far due to the wind pressure of a rotating brush during cleaning.

Hereinafter, the present invention will be explained based on an illustrated embodiment.

As shown in FIGS. 1 to 3, the cleaning device of the embodiment includes a truck 2 having running wheels 1 attached to four corners, and a lifting mechanism 3 consisting of a pantograph, which is stacked on top of the truck 2. a brush mechanism 5 mounted on the rear half of the platform 4, that is, the left half in FIG. 1, and a detergent tank 6 and instrumentation installed in the front half of the platform 4. In the following description, the right side and the left side in FIG. 1 will be referred to as the front and rear, respectively, and the front side and the back side in the same figure will be referred to as the right side and the left side, respectively.

Here, the formation mode of each of the above-mentioned constituent parts will be specifically described.

(a) Trolley 2 At the front end of the trolley 2, a hand handle 8 made of a handrail frame-shaped pipe is erected, so that the trolley 2 can be moved manually. For continuous cleaning, the handle 8 is pulled and operated to move the cart 2 forward and slowly at an appropriate cleaning speed.

(b) Elevating Mechanism 3 This mechanism 3 is provided with a hydraulic cylinder 9 as an elevating drive mechanism, and the base of the cylinder 9 is pivotally supported on the trolley 2.

(c) Brush mechanism 5 Near the center of the rear end of the lifting platform 4, a pair of angle-shaped support racks 10 facing each other in the front and back are fixedly installed, and a bearing 11 is attached to the upper surface of each support rack 10, respectively. In addition, both ends of an adjustment shaft 13 which is suspended horizontally on the lower surface of the intermediate base of the support beam 12 for left/right tilt adjustment are supported by the bearing 11, and a passive sprocket 14 is mounted at the front end of the adjustment shaft 13. is installed.

On the other hand, a gear box 15 for human power drive is installed at the left end of the rear part of the lifting platform 4, and a drive hand wheel 16 is attached to the operating rotation axis of the box 15, and an output shaft of the box 15 is attached to a drive hand wheel 16. , a transmission sprocket 17 is pivotally mounted, and the transmission sprocket 17 and the passive sprocket 14
A chain 18 is routed between the two.

With this structure, by operating and rotating the hand wheel 16, the left and right inclination of the support beam 12 can be easily adjusted and set within a tilt range of approximately 30 degrees left and right.

Next, at both left and right ends of the support beam 12,
A bearing 19 is attached to each bearing, and the same bearing 1
9 has bearings on both ends of an arm shaft 20 for adjusting the elevation angle, and furthermore, near the left and right ends of the arm shaft 20, a pair of symmetrical brush arms 21,
The intermediate base of 22 is pivoted and prevented from rotating.

A balance weight 23 is sandwiched between the tips of the straight front half portions 21a and 22a of each brush arm 21 and 22, and a rear half portion 21b which extends laterally and is bent into an L shape. Both ends of the rotating shaft 25 of the cylindrical rotating brush 24 are supported at each tip of the rotating brush 22b, and a brush cover surrounding the lower half of the rotating brush 24 is provided at the base of each brush arm rear half 21b, 22b. The front peripheral surface of No. 26 is welded.

Upright brushes 27 are planted in the shape of a square frame around the four peripheries of the upper opening of the brush cover 26, and the height of the tip of the upright brush 27 is slightly lower than the top edge of the rotating brush 24. , at the front and rear ends of the brush cover 26,
A water pipe 28 with upward water nozzles 28a and 29a opened at multiple locations (3 locations) along the way,
29 is stretched, and a brush motor 30 is attached to the right side of the front end of the brush cover 26.

A chain 33 is connected between the passive sprocket 31 at the right end of the brush rotation shaft 25 and the transmission sprocket 32 at the output shaft of the brush motor 30.
is hung around, and each water pipe 28,
One open end of 29 is connected to a water supply hose 34 led from external piping.

Due to this structure, the rotating brush 24 and the brush cover 26 move up and down together as the brush arms 21 and 22 swing, but the elevation angle at which the swing bases of both the brush arms 21 and 22 are stopped is fixed. A passive sprocket 35 is pivotally attached to the left end of the adjustment arm shaft 20, and a torque device 36 consisting of an electric torque motor is installed on the lifting platform 4 directly below it. A chain 38 is routed between the transmission sprocket 37 of the output shaft and the passive sprocket 35, which allows the brush arm 2 to
1 and 22 are always rotated clockwise in FIG. 1, that is, in a direction that raises the rotating brush 24, with a constant torque.

(d) Detergent Tank 6 The tank 6 contains an aqueous solution of a cleaning agent, that is, the cleaning liquid, and an electric pump 39 for the cleaning liquid is installed on the top surface of the tank 6 .

Thus, the suction pipe 40 of the pump 39 is immersed in the tank 6, and the discharge pipe 41 of the pump 39 is connected to a liquid passage pipe 42, which will be described later.

(e) Instrumentation panel 7 An external commercial power source is supplied to this panel 7 via a floating cable (not shown), and a brush motor 30, a torque motor 36, and a hydraulic pump (described later) are installed in the panel 7. An energizing circuit for the motor and its control circuit are built in, and a control command operation mechanism is attached.

In addition, a liquid passage pipe 42 is horizontally mounted on a bracket 43 fixed to the rear surface of the instrumentation panel 7.
Cleaning agent nozzles 42a are opened upward at a plurality of locations (three locations) on the supported pipe 42.

(f) Others Although not shown, on the lifting platform 4 there is an oil tank for supplying dynamic pressure oil to the hydraulic cylinder 9;
An oil pump, pump motor, and hydraulic control piping members are installed.

Next, the operation and operation of the cleaning device according to the embodiment configured as described above will be explained.

This cleaning device is used to wash the bottom surface of the fuselage and the bottom surface of the wings of an airplane parked on the ground. For example, as shown in FIG. In the process of moving the rotating brush 24, the top circumference of the rotating brush 24 is rubbed and cleaned.

The swinging positions of the brush arms 21 and 22 are restricted by a stopper member of a mechanical structure (not shown) at the lower and upper limits of the elevation angle of the rear half of the arms, that is, the lower limit is horizontal (elevation angle 0).
), the upper limit is held at just over 30°, and
When the elevation angle of the brush arms 21 and 22 falls below a predetermined lower limit angle (for example, 10 degrees), the oil pressure in the cylinder 9 is released and the platform 4 descends, and the elevation angle falls below a predetermined upper limit angle (for example, 30 degrees). ), dynamic pressure is supplied to the cylinder 9 and the lifting platform 4 is raised, thereby preventing the upright brush 27 from hitting the surface to be cleaned diagonally. is taken.

In addition, the brush arms 21 and 22 are designed to be horizontally blocked when the cleaning is not activated.

By the way, to start cleaning work, first,
By energizing the brush motor 30 to start rotating the rotary brush 24, and by starting the cleaning liquid pump 39 and starting the external water supply, cleaning liquid and cleaning water are supplied from each cleaning agent nozzle 42a and each water nozzle 28a, 29a. Make it spray.

Note that if the axial direction of the rotating brush 24 is inclined with respect to the axial direction of the body W, the hand wheel 1
6 to adjust the inclination of the rotating brush 24,
Set parallel to body W.

After that, when the torque device 36 is energized and the handle 8 is pulled to move the trolley 2 gently in the forward direction, first, the brush arms 21 and 22 have an elevation angle and the rotating brush 24 rises. When a certain sliding contact pressure is generated by the brush 24 hitting the body W, the rotation of the brush arms 21 and 22 comes to a standstill due to the reaction force, and in this state, the brush 24 performs the sliding operation.

Therefore, the cleaning liquid applied to the surface to be cleaned by spraying from the cleaning agent nozzle 42a sufficiently removes the adhered dirt during the elapsed time until the rotating brush 24 arrives, and therefore The wiping action allows dirt to be efficiently wiped away along with the cleaning water.

All such cleaning operations, except for moving the equipment, are performed by powered machines, so the operator must
There is no need to be below the surface being cleaned, and as a result,
Not only can the cleaning work be carried out easily and efficiently, but there is no risk of the worker being exposed to splashes of sewage or cleaning fluid, and in other words, work hygiene is good.

In addition, in the configuration of the present embodiment, if the movement of the trolley is made self-propelled, that is, it is equipped with a driving motor, a steering mechanism, a driver's seat, etc., and it is driven and moved by remote control, the work will be made easier. Needless to say, the efficiency is further improved.Alternatively, the same cleaning operation and effect can be obtained by fixing the trolley on the ground and moving the object to be cleaned.

As described above, according to the present invention, when the horizontal cylindrical rotating brush 24 is used to clean the bottom surface of an aircraft, etc., the semi-cylindrical brush cover 26 is attached along the lower half of the rotating brush 24. Injection nozzles 28a, 29 fixed to the front and rear outer walls of the upper edge
From the point where the cleaning liquid is sprayed from a and a constant dampness is always applied to the cleaning bottom surface to clean it,
The cleaning efficiency is improved, and since the wind pressure caused by the rotation of the rotating brush 24 is blocked by the brush cover 26 and the upright brush 27 on its upper edge, the cleaning liquid will not be scattered far away by the wind pressure. This has the effect that the above-mentioned bottom surface cleaning can be efficiently performed using the minimum amount of cleaning liquid.

[Brief explanation of the drawing]

FIG. 1 is a side view of a bottom surface cleaning device for an aircraft or the like showing an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a front view thereof. 2...Dolly, 4...Elevating platform, 21, 22...Brush arm, 24...Rotating brush.

Claims (1)

[Scope of claim for utility model registration] A trolley 2 that is located below the bottom of a parked aircraft and moves relatively on the ground, an elevator platform 4 that is mounted on the trolley so that it can be raised and lowered, and A pair of left and right brush arms 21 and 22 are supported by bearings on a stand and swing up and down, and their swing ends are positioned at a required height; and a pair of left and right brush arms 2.
A central rotating shaft 25 is horizontally connected between the swinging ends of 1 and 22.
A cylindrical rotating brush 2 in which brushes are provided radially around the outer periphery of the rotating shaft 25 which is supported and continuously rotates.
4, a semi-cylindrical brush cover 26 along the lower half of the rotating brush 24 is provided on the bearing part of the rotating brush 24, and the brush cover 26 has a semi-cylindrical shape. An upright brush 27 is installed on the periphery of the upper opening, and cleaning liquid spray nozzles 28a and 29a are fixedly installed on the front and rear outer walls of the upper edge of the brush cover 26, with the nozzles facing upward. A bottom cleaning device for an aircraft, etc., characterized by: