JP2005131605A - Rotary nozzle unit of automatic revolving washing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary nozzle unit of an automatic revolving washing device, the nozzle arm position of which automatically stops parallel to the longitudinal axis after the completion of washing so as not to interfere with a manhole opening. <P>SOLUTION: The rotary nozzle unit 10 of the automatic revolving washing device performs washing three-dimensionally by rotating a nozzle holder 3a with reaction force of high-pressure water sprayed from nozzles 3c and 3c, and, simultaneously, by rotating the main body case 11 by transmitting the rotation of the nozzle holder 3a to the main body 1. The rotary nozzle unit 10 of the automatic revolving washing device is characterized by that a positioning drum 9 having a recessed part 9a is arranged on the rotating shaft 4 of the nozzle holder 3a, or the positioning drum 9 having the recessed part 9a is arranged on a rotating shaft which rotates in conjunction with the rotation shaft 4 of the nozzle holder 3a, and an actuator 8 is arranged near the positioning drum 9, and the leading edge of the actuator 8 is inserted in the recessed part 9a. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a rotary nozzle unit of an automatic rotary cleaning apparatus for cleaning by spraying high-pressure water into a can such as a polymerization can, a reaction kettle, a transport pipe, a storage tank, or the inner surface of a large-diameter pipe.

2. Description of the Related Art Conventionally, a cleaning device that jets high-pressure water is known as a device that automatically rotates a nozzle to clean the inside of a tank uniformly.
FIG. 6 is a cross-sectional view showing an automatic rotary cleaning device 40 attached to, for example, a polymerization can. The polymerization can 21 is embedded in the floor leaving the upper part. Manholes 22 are provided at two locations above the polymerization can 21. The lid of the manhole 22 is opened, and two sets of automatic rotary cleaning devices 40 are attached. A rotary nozzle unit 30 is connected to the tip of the high-pressure pipe 23 below the automatic rotary cleaning device 40. This rotary nozzle unit 30 performs revolution and rotation at the same time, and is capable of jetting in a three-dimensional (rotational Dimension) direction, and hence is called a 3D nozzle unit (hereinafter also referred to as a 3D nozzle or a rotary nozzle). ing. This rotary nozzle is an automatic rotary cleaning system that is suitable for cleaning large diameter pipes such as polymerization cans, reaction kettles, transport pipes, storage tanks, and the inner surface of large diameter pipes by spraying high pressure water on the inner surface. It is a rotation nozzle unit of an apparatus. As shown in FIG. 6, one rotating nozzle 30 is shown on the left side, and the nozzle 33 of the rotating nozzle 30 is adjusted to a posture parallel to the axial direction so as not to interfere with the opening of the manhole 22, and carefully in the pipe. Inserted into.

FIG. 7 is a partially broken front view showing the configuration of the conventional rotary nozzle 30.
As shown in FIG. 7, the tubular shaft 32 rotating at the center is surrounded by the main body 31, and an injection part 32b for injecting high-pressure water is provided at the upper end part 32a. A nozzle 33 that can rotate in the direction D shown in FIG. 7 protrudes from the side surface 31a of the rotary nozzle 30. The nozzle 33 includes a nozzle holder 33a, a nozzle arm 33b, and a nozzle 33c at the tip. Yes. Further, the bevel gear 34 fixed to the tubular shaft 32 is meshed with the bevel gear 35 of the nozzle holder 33a, and the nozzle 33 is caused by the reaction force of the injection force generated at the time of injection from the nozzle 33c of the nozzle arm 33b. So as to obtain a so-called rotation (in the direction of arrow D) that rotates around the axis orthogonal to the tubular shaft 32 as well as a so-called revolution (in the direction of arrow E) that uses the tubular shaft 32 as a rotation axis. ing.

The problem with the method of rotating the nozzle 33 with high-pressure water is that the rotational speed changes depending on the water temperature. That is, when the water temperature is low in the early morning, the resistance of each part is generally large and the rotational speed is low, and when the water temperature is high in the afternoon, the resistance is low and the rotational speed is high. As described above, since the resistance also changes with the change of the water temperature, the rotation speed is not constant. Therefore, as a device for controlling the rotational speed so as not to affect the change of the water temperature and stabilizing the rotational speed to solve the above-described problems, a cleaning device that uses the magnetic force to control the rotational speed is known ( For example, see Patent Document 1).
As shown in FIG. 7, a rotation control unit 36 for controlling the number of rotations of the nozzle 33 is provided at the lower part of the main body 31, and a magnetic brake (not shown) is used. Further, spur gears 38, 39, and 40 are provided on the shaft 37 of the rotation control unit 36 so as to mesh with each other, and are configured to shift the rotational braking force generated in the rotation control unit 36.

Next, the operation of the rotating nozzle 30 will be described. When the high-pressure water injected from the injection part 32b is injected from the nozzle 33c, the nozzle 33 rotates in the direction of arrow D by the reaction force of the injection force. Then, since the bevel gear 35 of the nozzle holder 33 and the bevel gear 34 of the main body 31 mesh with the nozzle holder 33 a, the rotational force of the nozzle holder 33 a is transmitted to the main body 31 via the bevel gear 35 and the bevel gear 34. As a result, the main body 31 rotates about the tubular shaft 32 in the direction of arrow E. Therefore, since the nozzle 33c provided in the nozzle arm 33b performs rotation and revolution, high-pressure water can be uniformly sprayed on the entire surface around the main body 31.
The rotary nozzle 30 is connected to the tip of the automatic rotary cleaning device, and the rotary nozzle 30 is moved up and down by the automatic rotary cleaning device attached to a manhole such as a polymerization can, a reaction kettle, a transport pipe, and a storage tank. As a result, the inside of the can such as the polymerization can and the inner surface of the large-diameter pipe are cleaned.
Japanese Patent No. 2934945 (paragraphs 0014 to 0025, FIGS. 1, 2, and 3)

However, as shown in the left-side automatic rotary cleaning device 40 in FIG. 6, in the case of extracting from the manhole 22 after the cleaning, the position of the nozzle arm 33 b of the rotary nozzle 30 is not necessarily parallel to the axial direction of the rotary nozzle 30. However, there is a problem of interference with the manhole 22.
If the nozzle arm 33b is shortened in order to eliminate this interference, the rectifying effect of the high-pressure water is lowered, and there is a problem that the power of injection is reduced. Further, when the interference occurs, it is necessary to adjust the posture of the nozzle arm 33b of the rotary nozzle 33 by putting a hand through the opening of the manhole 22, and there is a problem that this operation is troublesome and dangerous.

  Therefore, the present invention was devised to solve these problems, and after cleaning is completed, the position of the nozzle arm automatically stops parallel to the axis, and does not interfere with the manhole opening. An object of the present invention is to provide an easy and safe rotating nozzle unit of an automatic rotary cleaning apparatus.

  The invention of the rotary nozzle unit of the automatic rotary cleaning apparatus according to claim 1 is characterized in that the nozzle holder is rotated by the injection reaction force of the high-pressure water jetted from the nozzle, and the rotation of the nozzle holder is transmitted to the main body. A rotary nozzle unit of an automatic rotary cleaning apparatus that performs three-dimensional cleaning by rotating a case, wherein a positioning drum having a recess is disposed on a rotary shaft of the nozzle holder, or a rotary shaft of the nozzle holder A positioning drum having a recess is disposed on a rotating shaft that rotates in conjunction with the actuator, an actuator is disposed in the vicinity of the positioning drum, and a tip of the actuator is inserted into the recess. .

  According to the first aspect of the present invention, a positioning drum having a recess is disposed on the rotation shaft of the nozzle holder, or a rotation shaft that rotates in conjunction with the rotation shaft of the nozzle holder has a recess. Since the positioning drum is arranged and the actuator is arranged near the positioning drum, the position of the nozzle arm is automatically stopped parallel to the axis after the cleaning is completed, and there is no interference with the manhole opening. It is possible to provide an easy and safe rotary nozzle unit of an automatic rotary cleaning apparatus.

The invention of the rotary nozzle unit of the automatic rotary cleaning apparatus according to claim 2 is characterized in that an injection part for injecting high-pressure water into an upper end part, a lower part of the injection part, and a first bevel gear are integrally formed downward. A formed cylindrical main body, a tubular shaft that is inserted into the cylindrical main body, is rotatably supported, and a hole that is orthogonal to the axis of the tubular shaft is formed. A second bevel gear that is rotatably supported and meshes with the first bevel gear at one shaft end, a horizontal shaft to which a nozzle holder is connected at the other shaft end, and the second bevel gear; A meshing third bevel gear is disposed, disposed below the rotation shaft of the third bevel gear, and a rotation control unit for braking the rotation so as to stabilize the rotational speed, and surrounding these mechanisms A main body case that protrudes from the main body case and from the nozzle holder 2 A rotary nozzle unit of the automatic rotary cleaning device nozzle arm is composed of a nozzle connected respectively to the direction,
A positioning drum having a recess is disposed on an end surface of the second bevel gear on the horizontal axis, an actuator is disposed in the vicinity of the positioning drum, and a tip portion of the actuator is inserted into the recess. Features.

  According to invention of Claim 2, the horizontal axis | shaft orthogonal to a tubular axis | shaft was provided, the 2nd bevel gearwheel was arrange | positioned at one axial end, and the nozzle holder was connected to the other axial end. A positioning drum can be disposed on the end face of the second bevel gear. In addition, an actuator is provided in the vicinity, and the tip of the cylinder rod of this actuator is inserted into the concave portion of the positioning drum, so that the positioning drum can be easily positioned. Can be. Then, after the cleaning is completed, the position of the nozzle arm is automatically stopped parallel to the axis, and the rotary nozzle unit of the automatic rotary cleaning device can be provided easily and safely without interfering with the manhole opening. .

  The invention of the rotary nozzle unit of the automatic rotary cleaning apparatus according to claim 3 is characterized in that an injection portion for injecting high-pressure water into an upper end portion, a lower portion of the injection portion, and a first bevel gear are integrally formed downward. A formed cylindrical main body, a tubular shaft that is inserted into the cylindrical main body and is rotatably supported, and is rotatably supported so as to cover the outer periphery of the tubular shaft. A joint provided with two convex portions, a first horizontal axis is screwed to one convex portion of the joint, the nozzle holder is rotatably supported, and a gear is formed at the lower portion of the joint. A gear that meshes with each other, a rotation control unit that is controlled by the gear and brakes the rotation of the main body, and a nozzle that protrudes from the main body and is connected to the nozzle holder in two directions from the nozzle holder. Automatic rotary cleaning device In the nozzle unit, a second bevel shaft is screwed to the other convex portion of the joint, and a third bevel gear that is rotatably supported and meshes with the first bevel gear is disposed. A positioning drum having a recess is disposed on an end surface of the bevel gear, an actuator is disposed in the vicinity of the positioning drum, and a tip portion of the actuator is inserted into the recess.

  According to the invention described in claim 3, the second horizontal shaft orthogonal to the tubular shaft is provided, and the third bevel gear that meshes with the first bevel gear is disposed at the end of the second horizontal shaft. A positioning drum can be disposed on the end face of the third bevel gear. An actuator is provided in the vicinity thereof, and the positioning drum can be easily positioned by inserting the tip of the cylinder rod of the actuator into the recess of the positioning drum. Therefore, the horizontal axis shown in claim 1 is integrated. As with the configuration, the nozzle can be easily positioned. Then, after the cleaning is completed, the position of the nozzle arm is automatically stopped parallel to the axis, and the rotary nozzle unit of the automatic rotary cleaning device can be provided easily and safely without interfering with the manhole opening. .

  According to the first aspect of the present invention, the position of the nozzle arm is automatically stopped parallel to the axis after the cleaning is completed, and the automatic rotary cleaning device is easy and safe without interfering with the manhole opening. A rotating nozzle unit can be provided.

  According to invention of Claim 2, the horizontal axis | shaft orthogonal to a tubular axis | shaft was provided, the 2nd bevel gearwheel was arrange | positioned at one axial end, and the nozzle holder was connected to the other axial end. A positioning drum can be disposed on the end face of the second bevel gear. In addition, an actuator is provided in the vicinity, and the tip of the cylinder rod of this actuator is inserted into the recess, so that the positioning drum can be easily positioned. Therefore, it is easy to position the nozzle integrated with the horizontal axis. Can do. Then, after the cleaning is completed, the position of the nozzle arm is automatically stopped parallel to the axis, and the rotary nozzle unit of the automatic rotary cleaning device can be provided easily and safely without interfering with the manhole opening. .

  According to the invention described in claim 3, the second horizontal shaft orthogonal to the tubular shaft is provided, and the third bevel gear that meshes with the first bevel gear is disposed at the end of the second horizontal shaft. A positioning drum can be disposed on the end face of the third bevel gear. An actuator is provided in the vicinity thereof, and the positioning drum can be easily positioned by inserting the tip of the cylinder rod of the actuator into the recess of the positioning drum. Therefore, the horizontal axis shown in claim 1 is integrated. As with the configuration, the nozzle can be easily positioned.

Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a cross-sectional view of a rotary nozzle unit 10 of an automatic rotary cleaning apparatus showing a first embodiment. As shown in FIG. 1, the nozzle holder 3 a is rotated by the injection reaction force of the high-pressure water injected from the nozzles 3 c, 3 c, and the rotation of the nozzle holder 3 a is transmitted to the main body 1 to rotate the main body case 11 to obtain the tertiary. This is the rotary nozzle unit 10 of the automatic rotary cleaning device 40 (see FIG. 7) that originally performs cleaning. A positioning drum 9 having a recess 9a is disposed on the rotation shaft of the nozzle holder 3a. An actuator 8 is disposed in the vicinity of the positioning drum 9, and a tip portion 13a of the actuator 8 is inserted into the recess 9a. By doing so, the nozzle 3 is positioned.
The difference from the conventional rotary nozzle unit 30 (see FIG. 7) is that a horizontal shaft 4 is provided as a turning shaft of the nozzle 3 and the second bevel gear 5 disposed at the shaft end of the horizontal shaft 4 is the center. A first bevel gear 1b and a third bevel gear 7 are arranged above and below, a positioning drum 9 is provided on the end face of the second bevel gear 5, and an actuator 8 is provided below the positioning drum 9.

As shown in FIG. 1, the injection | pouring part 1a which inject | pours high pressure water into the upper end part 1c is provided, and the main body 1 is being fixed to the flange under the injection | pouring part 1a with the volt | bolt. The main body 1 is formed in a cylindrical shape, and a first bevel gear 1b is integrally formed downward.
The tubular shaft 2 is inserted into the main body 1 and is rotatably supported by a bearing supported by the main body 1. Further, the tubular shaft 2 rotates in the E direction shown in FIG. Further, an orthogonal hole is formed below the axis of the tubular shaft 2, and the horizontal shaft 4 is inserted into the hole and is rotatably supported by a bearing.
The horizontal axis 4 that is the rotation axis of the nozzle holder 3a is rotatably supported by bearings at both ends with two high-pressure packings interposed therebetween, and is rotatable in the direction D shown in FIG. A second bevel gear 5 that meshes with the first bevel gear 1 b is disposed at the left shaft end of the horizontal shaft 4. A seal 11 c is inserted in the gap between the outer periphery of the second bevel gear 5 and the main body case 11.
A nozzle holder 3 a is connected to the right shaft end of the horizontal shaft 4. Further, a third bevel gear 7 is arranged below the second bevel gear 5 and meshes with each other to transmit a rotational force.
A rotation control unit 6 for braking the rotation so as to obtain a stable rotation speed is disposed below the rotation shaft of the third bevel gear 7. The rotation control unit 6 uses a magnetic brake (not shown) so that the rotation shaft 6a of the rotation control unit 6 can change the rotation braking force for controlling the number of rotations generated in the rotation control unit 6. It is configured.

  2A is a side view as viewed from the arrow B shown in FIG. 1, and FIG. 2B is a side view as viewed from the arrow C shown in FIG. As shown in FIG. 2A, a steel pipe (pipe) 17 is piped between the joint 16 connected to the center of the main body case 11 and the joint 16 connected to the inlet 12 c of the actuator 8. A positioning drum 9 is disposed on the end face of the second bevel gear 5 of the horizontal shaft 4 (see FIG. 1) and is fixed by bolts. The positioning drum 9 has a cylindrical shape, and a ring-shaped rib is formed on one end surface on the second bevel gear 5 side so as to close the inner periphery, and a bolt is formed on the end surface of the second bevel gear 5. Is fixed. The other end surface of the positioning drum 9 is opened, and small holes, which are two concave portions 9 a and 9 a, are disposed on the outer periphery of the positioning drum 9.

  As shown in FIG. 2A, the actuator 8 is provided on the lower side portion 11 b of the main body case 11. In the actuator 8, a stopper pin 13, which is a cylinder rod, is surrounded by a holder 12a and a cover 12b. As shown in FIG. 1, a spring washer 15 is disposed in the cover 12b, and a coil spring 14 is held. An adjustment screw 12d for adjusting the urging force of the coil spring 14 is disposed below the spring washer 15, and is prevented from loosening by a nut 12e. The tip end portion 13a of the stopper pin 13 is formed in a taper shape so that it can easily enter the recess 9a.

  Next, the path of high pressure water will be described. As shown in FIG. 1, the high-pressure water injected from the injection part 1 a passes through the through hole of the tubular shaft 2 and reaches a hole guarded by the high-pressure packing formed below the shaft of the tubular shaft 2. Therefore, the fuel is ejected from the nozzle arm 3b and the nozzle 3c which are branched in two vertically from the nozzle holder 3a through a hole provided at the center of the orthogonal horizontal axis 4. As shown in FIG. 2B, the respective nozzle arms 3b are arranged so as to be shifted by an interval a shown in FIG. A rotational force is generated by shifting the interval a and a reaction force of the injection force generated when the high pressure water is injected from the nozzle. The position / direction of the nozzle arm 3b shown in FIG. 2 (b) indicates a clamped state when the distal end portion 13a of the stopper pin 13 is inserted into the concave portion 9a of the positioning drum 9 and the positioning drum 9 is positioned. ing.

The operation of the rotary nozzle 10 will be described with reference to the drawings. As shown in FIG. 1, when the high pressure water injected from the injection part 1a is injected from the nozzles 3c and 3c, the nozzle 3 rotates in the direction of arrow D by the reaction force of the injection force. Then, the horizontal shaft 4 integrated with the nozzle holder 3a is rotated by the rotation of the nozzle holder 3a, and the second bevel gear 5 fixed to the horizontal shaft 4 moves around the first bevel gear 1b of the main body 1 to the main body case 11. And revolve (rotate) in the direction of arrow E around the tubular shaft 2 orthogonal to the rotation axis of the nozzle holder 3a.
As a result, the nozzle 3c provided in the nozzle arm 3b performs a rotation motion and a revolving motion, so that high-pressure water is uniformly sprayed on the entire periphery of the main body 1.

  FIG. 3A is a cross-sectional view showing the position of the stopper pin 13 that is injecting high-pressure water, and FIG. 3B is a cross-sectional view showing the position of the stopper pin 13 after the injection of high-pressure water is completed. As shown in FIG. 3A, the high-pressure water is guided to the inlet 12c by a pipe 17 (not shown) (see FIG. 2). As for the pin diameter of the stopper pin 13 which is a cylinder rod of the actuator 8, the upper part is φA, and the intermediate part is φB through the step part 13b. That is, φA <φB. When high-pressure water flows in from the high-pressure water inlet 12 c, a downward thrust F is generated due to the area difference of the stepped portion 13 b of the stopper pin 13 and is pressed downward, and the coil spring 14 is forced against the urging force W of the coil spring 14. The flange portion 13c of the stopper pin 13 comes into contact with the cover 12b and stops. Thereby, a clearance is secured between the positioning drum 9 and the tip end portion 13a of the stopper pin 13, and the positioning drum 9 rotates.

As shown in FIG. 3B, when the water pressure of the high-pressure water is reduced or the intermediate pressure is reached after cleaning, the biasing force W of the coil spring 14 becomes W> F, and the stopper pin 13 is raised. And the front-end | tip part 13a of the stopper pin 13 and the positioning drum 9 contact. At this time, the nozzle arm 3b of the rotary nozzle 3 continues to rotate slowly, and the tip portion 13a of the stopper pin 13 jumps into one of the two recesses 9a, 9a provided in the positioning drum 9, and the rotation stops. To do.
As shown in FIG. 2B, since the posture is parallel to the axial direction of the tubular shaft 2, the nozzle 3 is extracted without interfering with the opening of the manhole. Thereafter, the manhole cover is closed and the operation is completed.

FIG. 4 is a plan view taken along arrow A shown in FIG. 1. FIG. 4 (a) shows the case where the nozzle 3 is parallel to the axis, and FIG. 4 (b) shows the nozzle 3 perpendicular to the axis. It is explanatory drawing which shows a case.
As shown in FIG. 4A, the minimum diameter when the nozzle 3 is parallel to the axis is φD1, and the minimum diameter when the nozzle 3 shown in FIG. 3B is perpendicular to the axis is φD2. It is. From these two comparisons, D2 / D1 is 1.5 times. Therefore, it can be seen that the interference between the manhole port and the nozzle 3 is eliminated by passing the manhole port with the nozzle 3 parallel to the axis.

  FIG. 5 is a sectional view showing the rotary nozzle unit 20 of the automatic rotary cleaning apparatus showing the second embodiment. As shown in FIG. 5, the difference from the conventional rotary nozzle unit (rotary nozzle) 40 (see FIG. 7) is that a second horizontal shaft 24 is disposed on the opposite side of the swivel axis of the nozzle 3 and a third umbrella is provided. The gear 25 is provided, the positioning drum 9 is provided on the end face of the third bevel gear 25, and the actuator 8 is provided below the positioning drum 9. In addition, the same code | symbol is attached | subjected to a common part with the conventional rotary nozzle 30, and the overlapping description is abbreviate | omitted.

As shown in FIG. 5, the tubular shaft 32 is inserted into the main body 31, and an upper end portion 32c thereof is provided with an injection portion 32ba for injecting high-pressure water, and the holes continuing from the injection portion 32b are in two directions from the middle. It is divided into. A main body 31 is integrally fixed to the tubular shaft 32.
The main body 31 is connected to the lower side of the injection portion 32b, and a cylindrical first bevel gear 34 is rotatable downward.
The joint 26 covers the outer periphery of the tubular shaft 32 in a cylindrical shape, and is rotatably supported by a bearing fixed to the tubular shaft 32. Further, below the joint 26, two convex portions 23a and 23b are provided on the outer periphery. The joint 26 rotates about the vertical axis in the direction E shown in FIG.
One convex portion 23a of the joint 26 has a concave portion on the second horizontal shaft 25, which is a rotating shaft that rotates via the first bevel gear 34 in conjunction with the first horizontal shaft 23 that is the rotating shaft of the nozzle holder. The first horizontal shaft 23 is screwed and a nozzle holder 33a rotatably supported is fixed. A second bevel gear 35 that meshes with the first bevel gear 34 is also provided.
A second horizontal shaft 24 is screwed onto the other convex portion 23 b of the joint 26, and a third bevel gear 25 that is rotatably supported and meshes with the first bevel gear 34 is disposed.
Further, a gear is formed in the lower portion of the joint 26, and a rotation control unit 36 for braking the rotation of the main body 31 by being shifted by the gear 40 meshing with the gear 40, the gear 38, and the gear 39 is disposed. Yes.
A positioning drum 9 having a recess 9a is disposed on the end face of the third bevel gear 25, an actuator 8 is disposed in the vicinity of the positioning drum 9, and a tip portion 13a of the actuator 8 is inserted into the recess 9a. Thereby, the positioning of the nozzle can be facilitated. Then, after the cleaning is completed, the position of the nozzle arm is automatically stopped parallel to the axis, and the rotary nozzle unit 20 of the automatic rotary cleaning device that is easy and safe without interfering with the manhole opening is provided. it can.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and can be implemented with appropriate modifications. For example, the positioning drum 9 is provided with two recesses 9a, 9a, but the outer periphery of the positioning drum 9 includes a small hole in the recess, a V groove, a slit, a notch or the like. Further, the tip 13a of the stopper pin 13, which is the cylinder rod of the actuator 8, may have a wedge shape in accordance with the V groove or slit.

It is sectional drawing of the rotation nozzle unit of the automatic rotary washing apparatus which shows 1st Embodiment. (A) is a side view of arrow B shown in FIG. 1, (b) is a side view of arrow C shown in FIG. It is a top view of the A arrow shown in FIG. 1, (a) shows the case where a nozzle is parallel to an axial center, (b) is explanatory drawing which shows the case where a nozzle is perpendicular to an axial center. It is a top view of the A arrow shown in FIG. 1, (a) shows the case where a nozzle is made parallel to an axial center, (b) is explanatory drawing which shows the case where a nozzle is made right angle to an axial center. It is sectional drawing which shows the rotation nozzle unit of the automatic rotary washing apparatus which shows 2nd Embodiment. It is the partially broken front view which shows the structure of the conventional rotary nozzle. It is the partially broken front view which shows the structure of the conventional rotary nozzle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 1a Injection | pouring part 1b 1st bevel gear 1c Upper end part 2 Tubular shaft 3 Nozzle 3a Nozzle holder 3b Nozzle arm 3c Nozzle 4 Horizontal shaft 5 2nd bevel gear 6 Rotation control unit 6a Rotating shaft 7 3rd bevel gear 8 Actuator 9 Positioning Drum 9a Recess 10, 20 Rotating nozzle unit (3D nozzle, rotating nozzle)
DESCRIPTION OF SYMBOLS 11 Main body case 11a Side part 11b Lower side part 11c Seal 12a Holder 12b Cover 12c Inlet 12d Adjustment screw 12e Nut 13 Positioning pin 13a Tip part 13b Step part 14 Coil spring 15 Spring washer 16 Joint 17 Steel pipe (pipe)
22 Bearing 23 1st horizontal axis 23a, 23b Convex part 24 2nd horizontal axis 25 3rd bevel gear 26 Joint 40 Automatic rotation washing apparatus

Claims (3)

  Rotating nozzle of an automatic rotary cleaning device that rotates the nozzle case by jetting reaction force of high-pressure water sprayed from the nozzle, and rotates the main body case to perform three-dimensional cleaning by transmitting the rotation of the nozzle holder to the main body A positioning drum having a recess is disposed on the rotation shaft of the nozzle holder, or a positioning drum having a recess is disposed on the rotation shaft that rotates in conjunction with the rotation shaft of the nozzle holder. An rotary nozzle unit of an automatic rotary cleaning apparatus, wherein an actuator is disposed in the vicinity of the positioning drum, and a tip portion of the actuator is inserted into the recess. An injection part for injecting high-pressure water into the upper end part;
A cylindrical main body connected to the lower part of the injection part and integrally formed with the first bevel gear downward;
A tubular shaft inserted into the cylindrical main body and rotatably supported;
A hole perpendicular to the axis of the tubular shaft is formed, and is inserted into the hole and rotatably supported. A second bevel gear meshing with the first bevel gear is disposed at one shaft end, and the other shaft The horizontal axis to which the nozzle holder is connected at the end,
A third bevel gear that meshes with the second bevel gear, and a rotation control unit that is disposed at a lower portion of a rotation shaft of the third bevel gear and brakes rotation so as to stabilize the rotation speed;
A body case surrounding these mechanisms from the outside,
A rotary nozzle unit of an automatic rotary cleaning device that is configured to protrude from the main body case and have a nozzle arm connected to each of the nozzle holder in two directions from the nozzle holder,
A positioning drum having a recess is disposed on an end surface of the second bevel gear on the horizontal axis, an actuator is disposed in the vicinity of the positioning drum, and a tip portion of the actuator is inserted into the recess. Rotating nozzle unit for automatic rotary cleaning device. An injection part for injecting high-pressure water into the upper end part;
A cylindrical main body connected to the lower part of the injection part and integrally formed with the first bevel gear downward;
A tubular shaft inserted into the cylindrical main body and rotatably supported;
A joint rotatably supported so as to cover the outer periphery of the tubular shaft, and provided with two convex portions on the outer periphery;
A nozzle holder in which a first horizontal axis is screwed to one convex portion of the joint and is rotatably supported;
A gear is formed in the lower part of the joint, and a gear meshing with the gear, a rotation control unit for shifting the rotation of the main body by being shifted by the gear,
A rotary nozzle unit of an automatic rotary cleaning apparatus that is configured to project from the main body and to which nozzle arms are respectively connected in two directions from the nozzle holder;
A second horizontal shaft is screwed to the other convex portion of the joint, is rotatably supported, and a third bevel gear that meshes with the first bevel gear is disposed.
A positioning drum having a recess is disposed on the end face of the third bevel gear,
An actuator is disposed in the vicinity of the positioning drum,
A rotary nozzle unit of an automatic rotary cleaning apparatus, wherein a tip portion of the actuator is inserted into the concave portion.

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