JPS6328840B2 - - Google Patents

Description

[Detailed description of the invention]

TECHNICAL FIELD The present invention relates to a rotating brush type cleaning device used for washing the outer surface of a vehicle body or the like. A rotating brush type cleaning device is used to wash flat external surfaces such as car bodies. In this device, the periphery of a continuously rotating cylindrical cleaning brush is rubbed against the surface to be cleaned with a constant pressure. By this,
A method is used in which dust and dirt adhering to a surface to be cleaned to which cleaning liquid has been applied are wiped off with cleaning water. By the way, in the conventional structure of this type of cleaning device, the bearing support that supports both ends of the rotating shaft of the rotating brush is directly attached to a stationary part, so it is necessary to tilt the direction of the rotating axis of the rotating brush. As a result, if the surface to be cleaned has a curved shape, the distribution of the rubbing pressure of the brush will be uneven, making it impossible to achieve a uniform cleaning operation. However, this type of lever characteristic is not a big problem when washing a nearly flat external surface such as the side of a vehicle, but it is not a big problem when cleaning an external surface with a complex arm curve such as an aircraft fuselage. When attempting to wash with water, there are areas where the cleaning power decreases over time, leading to the problem of impractical use. The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to change the direction of the axis of rotation of the rotating brush that contacts the surface to be cleaned with a predetermined rubbing pressure. An object of the present invention is to provide a rotating brush type cleaning device that can be tilted to follow the curvature of a surface to be cleaned. The present invention will be described below based on an illustrated embodiment. As shown in FIGS. 1 to 3, the washing machine equipped with the washing device of the embodiment includes a cart 2 having running wheels 1 attached to four corners, and a lifting mechanism 3 made of a panda graph. The lifting table 4 stacked on top, the cleaning device 5 of the embodiment mounted on the rear half of the lifting table 4, that is, the left half in FIG. 1, and the front half of the lifting table 4. It is formed by an installed detergent tank 6 and an instrumentation panel 7, and in the following description, the right side and left side in FIG. They are called 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 equipped with a hydraulic cylinder 9 as an elevating drive mechanism, and the base of the cylinder 9 is pivotally supported by the trolley 2. (c) Cleaning device 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. Further, both ends of an adjustment shaft 13 which is suspended horizontally on the lower surface of the intermediate base of the movable support beam 12 are supported by the same bearing 11, and a passive sprocket 14 is attached to the front end of the adjustment shaft 13. ing. 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.A drive wheel 16 is attached to the operating rotation shaft of the box 15, and a drive wheel 16 is attached to the output shaft of the box 15.
A transmission sprocket 17 is pivotally mounted, and a chain 18 is wound between the transmission sprocket 17 and the passive sprocket 14. With this structure, by operating and rotating the operating wheel 16, it can be tilted within an inclination range of about 30 degrees left and right.
The horizontal inclination of the movable support beam 12 can be easily adjusted and set. Next, bearings 19 are attached to the left and right ends of the movable support beam 12, and both ends of an elevation adjustment arm shaft 20 are supported on the bearings 19. Near the side ends, intermediate bases of a pair of symmetrical brush arms 21, 22 are pivoted and prevented from rotating. A balance weight 23 is clamped between the tips of the straight front half portions 21a and 22a of each brush arm 21, 22, and the rear half portion 21b is expanded laterally and bent into an L shape. , 22b, both ends of the rotating shaft 25 of the cylindrical rotating brush 24 are supported, and a brush 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 the cover 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 in the vertical direction.
A torque device 36 consisting of an electric torque motor is operatively connected to the left end of the elevation adjustment arm shaft 20, in which the swing bases of both brush arms 21 and 22 are prevented from rotating, via transmission means 35, 37, and 38. . As a result, the brush arms 21 and 22, which are installed on the movable support beam 12 and can freely tilt in the left and right directions, are always urged to rotate clockwise in FIG. ing. That is, even when the movable support beam 12 is tilted in the left-right direction, the driving force of the torque device 36 is transmitted to the elevation adjustment arm shaft 20 on which the brush arms 21 and 22 are provided, so that the brush arms 21 and 22 is biased upward. In order to always transmit the driving force of the torque device 36 to the elevation adjustment arm shaft 20, the transmission means 35, 37, which can maintain torque transmission even when the driving shaft and the driven shaft are not parallel, are required. 38 may be used, or the torque device 36 itself may be attached to the movable support beam 12.
The electric torque motor and the arm shaft 20 for adjusting the elevation angle may be directly interlocked and connected. (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 . The suction pipe 40 of the pump 39 is submerged in the tank 6, and the discharge pipe 41 of the pump 39 is connected to a liquid 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 washing machine configured as described above will be explained. This washing machine is used to wash the bottom of the fuselage and the bottom of the wings of an airplane driven on the ground. For example, as shown in Fig. 1,
In the process of moving the washer across the lower part of the fuselage W, the rotating brush 24 rubs and cleans around the top. Note that the swinging positions of the brush arms 21 and 22 are as follows:
The lower and upper limits of the elevation angle of the rear half of the arm are restrained by a stopper member of a mechanical structure (not shown), that is, the lower limit is held horizontally (elevation angle 0°) and the upper limit is held at a little over 30°, and , brush arm 21,
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, 10 degrees).
30°), dynamic pressure is supplied to the cylinder 9 and the lifting platform 4 is configured to rise, thereby preventing the upright brush 27 from hitting the surface to be cleaned at a significant angle. Safety measures are taken. In addition, when the cleaning is not activated, the brush arm 2
1 and 22 are designed to be horizontally stopped. By the way, to start the cleaning work, first, the brush motor 30 is energized to start rotating the rotary brush 24, and the cleaning liquid pump 39 is started.
By starting the external water supply, each cleaning agent nozzle 42a
The cleaning liquid and cleaning water are sprayed from each of the water nozzles 28a and 29a. In addition, when the axial direction of the rotating brush 24 is inclined with respect to the axial direction of the body W, the inclination of the rotating brush 24 is adjusted by operating the hand wheel 16, and the direction of the axis of the rotating brush 24 is inclined with respect to the axial direction of the body W.
Set parallel to. 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, the brush arms 21 and 22 are first given an elevation angle, and the rotating brush 24 is applied to the surface to be cleaned above. When the brush 24 hits the body W during its rise and generates a certain sliding pressure, the brush arms 21 and 22 stop rotating due to the reaction force, and in this state, the brush 24 A sliding motion is performed. Therefore, the cleaning liquid applied to the surface to be cleaned by spraying from the cleaning agent nozzle 42a is transferred to the rotating brush 24.
During the elapsed time until the arrival of the washing water, the adhering dirt is sufficiently removed, and therefore, the dirt is efficiently wiped off together with the cleaning water by the wiping action of the rotating brush 24. In such a cleaning operation, if the longitudinal outer surface inclination of the fuselage W changes as the area to be cleaned on the fuselage W changes, the operating wheel 16 is driven while continuing the cleaning operation, so that it can be cleaned as needed. It is possible to easily adjust the axial direction of the rotating brush 24 to match the surface to be cleaned, so even when cleaning the bottom surface of the fuselage W over a wide area, uniform and good cleaning power can be achieved. As a result, there is no risk of leaving any residue after washing. The operating wheel 16 may be driven not only manually but also automatically, and may be driven by remote control according to a predetermined program. As described above, according to the rotary brush type cleaning device according to the present invention, the rotary brush type cleaning device is pivoted at a predetermined position on the horizontal table 4, which does not change in height, at a position orthogonal to the cross shape in the front-rear direction and the left-right direction. The cylindrical rotary brush 24 is tilted left and right (by rotation of the adjustment shaft 13) and vertically oscillated (by rotation of the arm shaft 20) by rotation of two axes, the adjustment shaft 13 and the arm shaft 20. At the same time, the weight of the rotating brush 24 is moved back and forth or left and right by the above-mentioned cross-shaped two axes and the balance weight 23 attached to the brush arms 21 and 22 on the opposite side of the rotating brush 24. , the object to be cleaned can be rotated and cleaned while being supported in a well-balanced manner by the rotating brush 24;
As a cleaning device dedicated to the bottom of airplanes, which have a relatively flat and gently curved shape, it is easy to operate and provides stable cleaning power. In addition, the central rotating shaft 25 of the cylindrical rotating brush 24
A pair of left and right brush arms 21 supporting both ends of the
22 is a movable support beam 1 that swings in the left and right directions.
Since the rotating brush 24 is pivotally supported on the left and right sides of the brush 2, it has the effect of stabilizing the supporting force when the cylindrical rotating brush 24 is tilted left and right.

[Brief explanation of drawings]

FIG. 1 is a side view of a rotating brush type cleaning device showing one embodiment of the present invention, FIG. 2 is a plan view of the same, and FIG.
The figure is a front view of the same. W... Body as surface to be cleaned, 11... Bearing of immovable part, 12... Movable support beam, 21, 22...
... Brush arm, 24 ... Cylindrical rotating brush, 2
5...Rotation axis.

Claims (1)

[Claims] 1. A horizontal table 4, and a bearing 1 protruding from the table 4 so as to face each other in the front and rear.
An adjustment shaft 13 rotatably supported between 1 and 11; and an adjustment shaft 1 whose intermediate portion is fixed to the adjustment shaft 13.
3, a movable support beam 12 that swings in the left and right lateral directions integrally with the movable support beam 12; and an arm shaft that is rotatably supported between bearings 19, 19 that are protruded from the movable support beam 12 to face each other in the left and right directions. 20; a pair of left and right brush arms 21, 22 that are fixedly installed on the left and right sides of the arm shaft 20 and swing vertically together with the arm shaft 20; and between one end of the pair of brush arms 21, 22. a rotary shaft 25 which is rotatably supported on the shaft and has a cylindrical rotary brush 24 fixed to its outer periphery; and a balance weight 23 provided at the other end of the pair of brush arms 21 and 22. A rotating brush type cleaning device characterized by comprising the following.