JPH04176349A - Rotary type spray device - Google Patents

Abstract

PURPOSE:To wash wall surfaces without releasing jet fluid from an aperture by providing rotating body which forms flow passages for the jet fluid so as to incline with the axial center of a main cylinder and is mounted rotatably to the main cylinder, a rotary nozzle which is rotatably mounted to the flow passages for the jet fluid and ejection ports. CONSTITUTION:The jet fluid flows from a pump into an inlet 6 and rotates rotary vanes 40. This fluid passes the flow passages 14, 15 and the flow passage 16 formed in a fitting body 18b and is injected from the ejection ports 51 of the rotating spray nozzles 50. On the other hand, the rotary nozzle 18 which rotates is slid and rotated (revolved) around a connecting nut 5, main cylinder 2 and cylindrical guide body 9 which are integrally connected via a bevel gear 30 formed to a boss 23 in the central part of the rotary nozzle 18 and a bevel gear 8 of the cylindrical guide body 9. The selection of a washing range is possible in this way and, therefore, the easy dealing with diversified bodies to be washed is possible.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a rotary spray device.

[Prior art] A rotary spray device used to clean the inside of a cylindrical tank (object to be cleaned), etc., which sprays jet fluid from a spout and sprays the fluid over the entire surface of the tank wall for cleaning. There is. That is, the rotating nozzle rotates and revolves due to the rotation of a pair of bevel gears that are meshed at right angles with each other, and the jet fluid is sprayed while rotating in the vertical and horizontal directions to clean the entire surface of the tank wall. It is carried out.

[Problems to be Solved by the Invention] When cleaning the inside of an open cylindrical tank with the above-mentioned rotary spray device, there are times when the jet fluid is sprayed upward, and the jet fluid is discharged from the opening of the tank. The problem is that it cannot be used in open tanks because it contaminates the outside of the tank.

Therefore, it is an object of the present invention to provide a rotary spray device that eliminates such inconveniences.

[Means for Solving the Problems] In order to solve the above problems, the rotary spray device includes a rotary spray device that is inclined to the axis of the main cylinder to form a flow path for the jet fluid, and that is rotatably attached to the main cylinder. A rotary nozzle rotatably attached to the flow path of the jet fluid, and a spout provided in the rotary nozzle.

"Function" The jet fluid rotates around the axis of the rotating body which is inclined with respect to the main body cylinder (hereinafter referred to as "autorotation"), and also rotates around the axis of the main body cylinder (hereinafter referred to as "revolution") while passing through the jet nozzle. Therefore, the area that can be cleaned can be selected by selecting the angle of the rotating body with respect to the main body cylinder and the jetting angle between the rotating body and the jet fluid.Therefore, when used in an open tank, the cleaning range can be selected. Even if the water is discharged from the opening, it is possible to wash the wall surface.

[Example] (First Example) This example will be described with reference to FIG. 1. FIG. 1 is a side sectional view showing the entire rotary cleaning device 1. As shown in FIG.

A thread 4 is formed inside the end of the metal body cylinder 2, and a connecting nut 5 having an inlet 6 through which the jet fluid flows is screwed onto the thread 4. On the other hand, there is a screw 7 on the outside of the opposite end for screwing a cylindrical guide body 9, which will be described later, and a protrusion 1o on the inner circumferential surface for sandwiching leakage prevention bushings 3a and 3b. is formed. A cylindrical guide body 9 having a hevel gear 8 formed at its end is adjusted with a bevel gear 30, which will be described later, and is screwed into the screw 7. The rotating body 11 that is slidably and rotatably fitted into the main body cylinder 2 is a cylindrical body made of metal or the like, and has a supporting part 13 of a rotary blade 40 and a flow path 14 (described later) formed therein. connected to the eccentric axis m parallel to the axis of the rotating body 11 (in this example, 45°
An angle α) flow path 15 is formed. The rotor blade 40 is formed and attached to the rotary shaft 41 so as to be rotatable by the flow of jet fluid through a bearing 17 which is fixed with a screw 26 at the end of the support part 13 and the rotary body 11. A boss 32 formed with a bevel gear 31 is fitted and fixed to the end of the rotating shaft 41. The rotating nozzle 18 has a nozzle main body 18 in which a flow path 16 is formed using a pipe or the like.
a and a fitting body 18b to be described later, and the nozzle main body 1
The spray nozzle 50 is attached to both ends of the spray nozzle 8a so that the direction of the ejection port 51 is inclined at an angle β (45°) with respect to the axis n of the rotary nozzle 18, as shown in FIG.

A boss 23 having a bevel gear 30 formed on the outer periphery that meshes with the bevel gear 8 is fixed to the center of the nozzle main body 18a so as to be perpendicular to the fitting body 18b. A screw 24 is formed which can be screwed into the cylindrical fitting body 18b for adjusting the bevel gear 8.30. On the other hand, a bevel gear 33 that meshes with the bevel gear 31 is formed at the other end of the fitting body 18b. That is, the rotary nozzle 18 and the rotating body 11 are attached to the flow path 1.
Bushings 20.21 and leakage prevention O-rings 22 inside 5.
Insert the fitting body 18b through the bevel gear 31.33
After adjusting the nozzle main body 18a so that it can slide and rotate with the position adjustment body 19, the hevel gear 30 and the bevel gear 8 are screwed together with the screw 2.
Adjust the tooth alignment in step 4 and install.

Next, the operation based on the above configuration will be explained. The jet fluid flows from an inlet 6 from a pump (not shown), rotates the rotor blade 40, and passes through the flow path 14.15 and the flow path 16 formed in the fitting body 18b to the spray nozzle 50 that rotates. It is injected from the outlet 51. That is, the rotary blade 40 rotated by the jet fluid rotates the rotary shaft 41, and slides and rotates the fitting body 18b and the nozzle main body 18a1, that is, the rotary nozzle 18, with the axis n as the rotation axis via the bevel gear 31.33. ). On the other hand, the rotating nozzle 1
8 is a connecting nut 5, a main body cylinder 2, and a cylindrical guide body 9 which are integrally connected via a bevel gear 30 formed on a boss 23 at the center of the rotating nozzle 18 and a bevel gear 8 of a cylindrical guide body 9. It slides and rotates (revolutions) around the center.

That is, the rotational speed of the rotating nozzle 18 is determined by the ratio of the bevel gear 31.33, and the revolution speed is determined by the ratio of the bevel gear 30.8, and the jet fluid is ejected from the jet port 51 while rotating and revolving. FIG. 2 shows a side sectional view when the rotary spray device 1 of this embodiment is installed at the center of a cylindrical open tank (object to be cleaned) 100, and the jet fluid is ejected from the spout 51 against the wall surface 101. In order to sequentially rotate horizontally, 45° downward, directly below, 45° downward, and then to the original horizontal direction while changing the injection angle, and revolving around the cylinder body 2,
The range to be cleaned by the jet fluid is the range shown by the dashed-dotted line in FIG. As is clear from FIG. 2, the jet fluid cleans the wall surface 101 below from the position where the spray device 1 is installed. Therefore, even when the rotary spray device of this embodiment is used in an open tank, the tank wall surface can be cleaned without the cleaning body being sprayed from the opening.

In addition, the angle α of the flow path 15 of the rotary body 11 formed to be inclined with respect to the axis m, the angle at which the fitting body 18b and the nozzle body 18a are attached (perpendicular in this example), and the axis n of the rotary nozzle 18
The cleaning range can be selected by appropriately selecting the angle β of the spout 51 of the spray nozzle 50 with respect to the angle β.

(Second Embodiment) As shown in the side cross-sectional view of the entire rotary cleaning device 1 in FIG. Parts that are different in that they are attached in different directions and have the same functions as those in the first embodiment are designated by the same reference numerals and their explanations will be omitted. As can be seen from FIG. 3 compared to FIG. 1, since there is no rotor blade, the reaction force of the jet fluid ejected from the injection port 51 of the spray nozzle 50 is used to rotate the rotary nozzle 18.

That is, in order to rotate (revolution) the rotating nozzle 18 around the main body cylinder 2, it is necessary to
In order to be able to rotate around the axis n', the spray nozzles 50 are attached so as to generate a rotational moment with respect to the axis n'. For this purpose, the reaction force of the jet fluid may be generated in the front and back directions of the page of FIG. 3, so in this example, the direction of the jet port 51 is set at an angle γ (45 ) The installation is tilted downward (
(See FIG. 4, which shows a view taken along arrows A-A in FIG. 3). The reason why the direction of the spout 51 is selected in this manner is to enable cleaning in a direction below the position where the spray device 1 is installed, as in the first embodiment.

To explain the operation based on the above configuration, the jet fluid flows from the pump (not shown) to the inlet 6, the flow path 14, and the flow path 15.
The liquid passes through the spray nozzle 50 and is sprayed from the spout 51 of the spray nozzle 50. The rotating nozzle 18 receives a rotational moment due to the injection of the jet fluid. That is, if the density, flow rate, and speed of the jet fluid injected from the injection port 51 are respectively density ρ, flow rate Q1, and velocity V, the force F becomes F=ρ·Q−■. Also, the axis n'
Letting the distance of the perpendicular line from to the jet fluid be S, the axis n'
The rotational moment M is M=ρ·Q−v−8. This rotational moment M causes the rotating nozzle 18 to rotate (rotate) around the axis n'. Also, the rotational moment M' around the axis m' is M' = ρ・Q-V-5' (
Here, S' is the distance of the perpendicular line from the axis m' to the jet)
It rotates (revolutions) via the bevel gear 30.8.

When this rotary cleaning device 1 is installed in a cylindrical open tank 100 shown in FIG. 5 (side sectional view), the direction of jetting fluid is changed from a downward 45° direction to a horizontal direction and then further downward due to rotation. The jet changes from the 45° direction through the vertical direction to the original downward 45° direction, and then the axis m'
The wall surface 101 is spray-cleaned by revolving around the center. For that reason,
According to the rotary cleaning device 1 of this embodiment, the spraying direction is not directed above the horizontal, and even when used in an open tank as in the first embodiment, the cleaning material is sprayed from the opening. It is possible to wash without washing.

Note that, similarly to the first embodiment, the angle α of the flow path 15 of the rotating body 11
The mounting angle of the fitting body 18b and the nozzle main body 18a is limited to the angle (perpendicular in this example), and the direction in which the rotational moment MSM' is generated, or the direction (angle γ) of the spout 51 of the spray nozzle 50 is selected as appropriate. If you attach it to the camera, you can select the cleaning range.

[Effects of the Invention] According to the rotary cleaning device of the present invention, the cleaning range can be selected by arbitrarily selecting the mounting angle of the rotary nozzle, spray nozzle, etc., so it can easily accommodate a variety of objects to be cleaned. I can do it.

[Brief explanation of drawings]

The drawings show embodiments of the present invention, and FIG. 1 is a side sectional view of the entire rotary cleaning device of the first embodiment, FIG. 2 is a diagram showing the cleaning range of the rotary cleaning device of the first embodiment, and FIG. Figure 3 is an overall side sectional view of the rotary cleaning device of the second embodiment, and Figure 4 is A of Figure 3.
-A arrow view, FIG. 5 is a diagram showing the cleaning range of the rotary cleaning device of the second embodiment. 2... Main body cylinder 11... Rotating body 18... Rotating nozzle 50... Spray nozzle 51... Spout port

Claims (1)

[Scope of Claims] A rotating body that is inclined to the axis of the main cylinder to form a flow path for the jet fluid, and is rotatably attached to the main cylinder, and a rotating body that is rotatably attached to the flow path for the jet fluid. A rotary spray device comprising: a rotary nozzle; and a spout provided in the rotary nozzle.