JP2019115332A - Rotary cleaning nozzle unit - Google Patents

Abstract

To provide a rotary cleaning nozzle unit configured so as to effectively remove foreign matter adhering to an object to be cleaned by applying pressurized cleaning liquid to the object to be cleaned that is conveyed from an opposite direction.SOLUTION: A rotary cleaning nozzle unit includes a plurality of rotary bodies, each of which includes a plurality of arms extending radially, and a plurality of nozzles provided to the plurality of arms respectively. The plurality of rotary bodies are arranged so that the center axes of the rotation are positioned coaxially. Cleaning liquid jetted from each of the plurality of rotary bodies reaches an object to be cleaned without interfering with each other.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a washing machine used to wash shellfish and culture materials landed from the sea, for example, in the culture of shellfish such as scallops.

  In the cultivation of clams such as scallops and oysters, clams and aquaculture materials landed in the sea are washed using a special washing machine. In general, a washing machine moves an object to be cleaned by placing it on, for example, a stainless steel mesh conveyor, and sprays the cleaning liquid onto the object to be cleaned from a cleaning nozzle unit disposed above the conveyor. It is configured to be able to wash. As the cleaning nozzle unit, usually, a so-called swing type cleaning nozzle unit and a rotary type cleaning nozzle unit are used.

  In the swing type cleaning nozzle unit, a plurality of arms provided with a nozzle at the tip end downward from the pressurized water supply pipe in a substantially parallel state, and the plurality of arms are transverse to the transport direction of the object to be cleaned By reciprocating, the cleaning liquid is sprayed onto the object to be cleaned (for example, Patent Document 1). On the other hand, in the rotary cleaning nozzle unit, a plurality of arms provided with a nozzle at the tip projects radially from the pressurized water supply pipe laterally, the tip is bent downward, and the plurality of arms are covered The cleaning liquid is sprayed onto the object to be cleaned by rotating the cleaning object above (for example, Patent Document 2). Such a rotary cleaning nozzle unit may be used, for example, to clean structures, walls, vehicles, etc., as well as aquaculture (e.g., Patent Document 3).

  When the swing-type cleaning nozzle unit and the rotary-type cleaning nozzle unit are compared, it is the swing-type cleaning nozzle unit that is generally superior in cleaning power. As a result of research and experiments by the inventor of the present application, the swing-type cleaning nozzle unit is superior in cleaning power because the cleaning liquid jetted from the nozzle repeatedly strikes the cleaning object from the left and right of the traveling direction of the cleaning object. Thus, it was confirmed that the object to be cleaned and the foreign matter attached thereto were shaken vigorously, and the foreign matter could be pulled away from the object to be cleaned, particularly when the object to be cleaned is hit from a weak direction. On the other hand, the swing type cleaning nozzle unit is more expensive than the rotary type cleaning nozzle unit, has many failures mainly due to vibration, and is disadvantageous in cost and ease of handling.

Unexamined-Japanese-Patent No. 2004-58036 JP, 2000-23592, A Japanese Patent Application Laid-Open No. 10-85632

  From the above point of view, according to the present invention, it is possible to rotate the foreign matter adhering to the object to be cleaned by allowing the pressurized cleaning liquid to be applied to the object to be transferred from various directions. It is an object of the present invention to provide a rotary cleaning nozzle unit configured to be removed as effectively as a swing type.

  The present invention provides a rotary cleaning nozzle unit that rotates while spraying a cleaning solution. The rotary washing nozzle unit includes a plurality of rotating bodies each having a plurality of radially extending arms and a nozzle provided on each of the plurality of arms. The plurality of rotating bodies are arranged such that central axes of rotation are coaxially located. The cleaning liquid ejected from each of the plurality of rotating bodies is configured to reach the object to be cleaned without interfering with each other. That is, the cleaning liquid jetted from one rotating body and the cleaning liquid jetted from another rotating body, which has a smaller or larger trajectory of a radius different from that of the cleaning liquid, is applied to the object to be cleaned. It is configured to hit from different directions. The number of arms included in each of the plurality of rotating bodies is preferably the same.

  In one embodiment, the direction of rotation is preferably determined such that at least one of the plurality of rotating bodies rotates in the opposite direction to the other rotating bodies. In another embodiment, preferably, the rotation directions of the plurality of rotating bodies are determined such that adjacent rotating bodies rotate in opposite directions. In still another embodiment, the rotation directions may be determined such that the plurality of rotating bodies rotate in the same direction. It is preferable that the plurality of rotating bodies are rotated by the reaction at the time of injection by determining the jetting direction of the nozzles so that the cleaning liquid is jetted in the direction opposite to the direction in which each of the rotary bodies rotates. . Furthermore, in order to ensure that the cleaning liquid strikes the object to be cleaned from different directions, the cleaning liquid jetted from the plurality of rotating bodies is configured such that the trajectories drawn on the plane on which the object to be cleaned is placed do not overlap each other. Is preferred.

  In one embodiment, the rotary washing nozzle unit preferably includes an axial pipe having an inner space through which the washing solution passes and an outlet through which the washing solution is discharged to the outside. Each of the plurality of rotating bodies has a rotating distribution unit, which rotates around the shaft pipe, is capable of attaching a plurality of arms, and has a plurality of cleaning solutions discharged from an outlet of the shaft pipe. It is preferable to supply to an arm. The rotary distribution unit has an internal space in which the cleaning liquid discharged from the outlet of the axial pipe fills the space between the rotary pipe and the axial pipe, and a sealing member for sealing so that the cleaning liquid filled in the internal space does not leak. Is preferred. As the sealing member, an O-ring provided on the inner peripheral surface of the rotation distribution unit can be used.

  In one embodiment, the rotary cleaning nozzle unit is preferably provided with a low friction member for reducing the resistance during rotation on the opposite side to the jet direction of the cleaning liquid of each of the plurality of rotating bodies. As a low friction member, it is possible to use a ball built-in thrust washer having an opening through which an axial pipe passes in the center.

  In the washing machine provided with the rotary washing nozzle unit according to the present invention, the pressurized washing liquid strikes the object to be cleaned from various directions, and the object to be cleaned is swung back and forth and from side to side. At this time, for example, a nozzle (a nozzle with a small radius of gyration) that rotates the inner side at the same time or immediately after a cleaning fluid jetted from a nozzle (a nozzle with a large radius of gyration) sprayed from the nozzle that rotates the outside Since the cleaning liquid jetted from the nozzle hits the foreign matter, the object to be cleaned and the foreign matter attached thereto can be subjected to intense vibration and complicated force. Therefore, the foreign matter firmly attached to the object to be cleaned can be effectively removed.

It is a schematic perspective view of a rotary washing nozzle unit concerning one embodiment of the present invention. It is a disassembled block diagram of the rotary washing nozzle unit concerning one Embodiment of this invention. It is sectional drawing of the rotation distribution part of the rotary washing nozzle unit concerning one Embodiment of this invention. It is the top view and front view of the low friction member of the rotary washing nozzle unit concerning one Embodiment of this invention. FIG. 7 is a schematic perspective view of a rotary cleaning nozzle unit according to another embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings.
1. Nozzle Unit According to First Embodiment FIG. 1 is a schematic perspective view of a rotary cleaning nozzle unit 1 (hereinafter referred to as a nozzle unit 1) according to a first embodiment of the present invention. FIG. 2 is an exploded view of the nozzle unit 1. The nozzle unit 1 is attached to a cleaning chamber of a cleaning machine (not shown) used for cleaning the object S to be cleaned, which is typically a shellfish or aquaculture material, in the culture of shellfish such as scallops and oysters, A pressurized cleaning fluid F (typically, pressurized water) can be jetted toward the to-be-cleaned object S placed on the belt conveyor 2 disposed below the nozzle unit 1.

  The nozzle unit 1 includes a body 10, three arms 21, 22 and 23 extending outward from an upper side surface of the body 10, and three arms 31 and 32 extending outward from a lower side surface of the body 10. , And 33. The upper part of the body 10 and the arms 21, 22, 23 extending therefrom rotate in the direction of the arrow A shown in FIG. 1, and the lower part of the body 10 and the arms 31, 32, 33 extending therefrom are shown in FIG. 1. Rotate in the direction of arrow B shown. When these arms rotate in opposite directions, the contact of the cleaning liquid with the object to be cleaned becomes complicated, and the effect of removing foreign matter from the object to be cleaned is enhanced. The direction of rotation of the arms 21, 22, 23 may be the direction of arrow B shown in FIG. 1, and the direction of rotation of the arms 31, 32, 33 may be the direction of arrow A. It is preferable that the nozzle unit 1 is rotated by the reaction of spraying the pressurized cleaning fluid F so that the device can be made smaller and lighter, but it is not limited thereto. It may be forced to rotate by power.

  The nozzle unit 1 is attached to, for example, the ceiling 4 of the washing chamber 3 inside the washing machine, as shown in FIG. 2, and is connected to one end of the supply pipe 5 of the pressurized washing solution F. At the other end of the supply pipe 5, for example, a plunger pump (not shown) that pressurizes the cleaning fluid F is connected. The pressure of the pressurized cleaning solution F is not particularly limited, but the pressure at which the cleaning of the object S is effectively performed is appropriately set, for example, about 5 MPa when the object S is a scallop It is preferable to set.

[Body section]
The body portion 10 of the nozzle unit 1 is, as shown in FIG. 2, on the shaft pipe 11, the rotation distribution units 12 and 13, on the rotation distribution unit 12, between the rotation distribution units 12 and 13, and the rotation distribution Below the portion 13, there are provided ball-incorporated thrust washers 14, 15, 16 as low friction members. Beneath the lowermost ball incorporating thrust washer 16, there are further provided a retaining plate 17 for preventing the members of the ball incorporating thrust washer 16 and the like from falling, and a bolt 18 for securing the retaining plate 17. In the present specification, the combination of the rotary distributor, the arm and the nozzle is called a rotary body.

(Axis pipe)
One end of the axial pipe 11 is connected to the supply pipe 5 of the pressurized cleaning fluid F, and has an internal space 11 a through which the pressurized cleaning fluid F passes. Furthermore, the axial pipe 11 has a plurality of pressurized cleaning liquid outlets 11 b at a position corresponding to the rotation distribution unit 12 described later, and has a plurality of pressurized cleaning liquid outlets 11 c at a position corresponding to the rotation distribution unit 13. Therefore, the pressurized cleaning fluid F supplied from the supply pipe 5 passes through the internal space 11 a and is discharged to the outside of the axial pipe 11 through the outlets 11 b and 11 c.

  In the present embodiment, four outlets for the pressurized cleaning fluid F are provided in the circumferential direction for both the outlet 11 b and the outlet 11 c, but the number is not particularly limited, and the discharge of the pressurized cleaning fluid F is Three or less or five or more may be used if it is performed without problems. The lower end of the axial pipe 11 is provided with a bolt hole 11d, and the bolt 18 is inserted into the bolt hole 11d. The material of the axial pipe 11 is preferably, for example, hard stainless steel, but it is not particularly limited as long as it is a material having pressure resistance, corrosion resistance, and wear resistance.

(Rotation distribution unit)
The rotation distribution units 12 and 13 are configured such that the axial pipe 11 passes through the central portion and rotates around the axial pipe 11. The rotary distribution unit 12 is disposed around the pressurized cleaning solution outlet 11 b provided on the upper side surface of the axial pipe 11, and the rotational distribution unit 13 is disposed around the pressurized cleaning solution outlet 11 c provided on the lower side surface of the axial pipe 11. Will be placed. Therefore, the central axes of rotation of the rotary distributors 12 and 13 are coaxially located. The arms 21, 22, 23 can be attached to the side surfaces of the rotation distribution unit 12, and the arms 31, 32, 33 can be attached to the side surfaces of the rotation distribution unit 13.

  FIG. 3 shows a cross-sectional view of the rotation distribution unit 12, and the details of the rotation distribution unit 12 will be described below with reference to FIG. In addition, since the rotation distribution part 13 is also the structure similar to the rotation distribution part 12, below, only the rotation distribution part 12 is demonstrated. The rotary distribution unit 12 includes a cylindrical main body 12a and cylindrical O ring holding members 12b and 12d press-fitted into holding portions provided at both ends of the main body 12a and fixed by, for example, an adhesive or a bolt. Have. A groove is formed in the vicinity of the upper end portion of the inner peripheral surface facing the outer peripheral surface of the axial pipe 11, and the O ring holding member 12b is a lower end of the inner peripheral surface facing the outer peripheral surface of the axial pipe 11. Grooves are formed in the vicinity of the portion, and O-rings 12c and 12e as sealing members are disposed in the grooves.

  As shown in FIG. 3, a space 12 f is provided between the inner peripheral surface of the middle portion of the main body 12 a and the inner peripheral surfaces of the O ring holding members 12 b and 12 d and the outer peripheral surface of the axial pipe 11. . The pressurized cleaning fluid F discharged from the outlet 11b of the axial pipe 11 is sealed by the O-rings 12c and 12e to fill the space 12f (the space shown by the dotted line in FIG. 3), and provided on the main body 12a. It flows out from the two openings 12g to the arms 21, 22 and 23 (note that only one opening 12g and the arm 22 are drawn in FIG. 3 so that the figure is not complicated). As a result, the inner peripheral surfaces of the O-ring holding members 12b and 12d do not come in direct contact with the outer peripheral surface of the axial pipe 11, and only the O-rings 12c and 12e contact the outer peripheral surface of the axial pipe 11. Functions as a kind of bearing, and the rotation distribution unit 12 rotates extremely smoothly around the shaft pipe 11.

  The material of the main body 12a is not particularly limited as long as it is a lightweight material having pressure resistance, corrosion resistance, and abrasion resistance, and, for example, hard stainless steel is preferable. The material of the O-ring holding members 12b and 12d is preferably harder than the main body 12a. For example, aluminum bronze is more preferable, but a lightweight material having pressure resistance, rust resistance, and wear resistance is preferable. It is not particularly limited.

  In the present embodiment, one O-ring is disposed on the inner peripheral surface of each of the O-ring holding members 12b and 12d, but the present invention is not limited to this. For example, the O-ring holding members 12b and 12d Two grooves may be formed on the inner circumferential surface of each of the two, and two O-rings may be arranged. Further, in the present embodiment, the main body 12a and the O-ring holding members 12b and 12d are configured as separate members, but the present invention is not limited to this, and even if they are formed uniformly Good.

  In the present embodiment, the nozzle unit 1 has two rotary distributors 12 and 13. However, the number of rotary distributors is not limited to two, and may be three or more. In the case of a nozzle unit having three or more rotary distributors, at least one rotary distributor is configured to rotate in the opposite direction to the other rotary distributors, and more preferably, adjacent rotary distributors Are configured to rotate in opposite directions. Further, in the case of a nozzle unit having three or more rotation distribution units, the axial pipe 11 is provided with an outlet of the pressurized cleaning fluid F at a position corresponding to each of the rotation distribution units.

(Ball built-in thrust washer)
Referring again to FIG. 2, the nozzle unit 1 contacts the rotation distribution units 12 and 13 on the rotation distribution unit 12, between the rotation distribution unit 12 and the rotation distribution unit 13, and under the rotation distribution unit 13. It is preferred to have a low wear member arranged as such. Preferably, ball-incorporated thrust washers 14, 15, 16 are used as low friction members. FIG. 4 shows a plan view and a front view of the ball built-in thrust washer 14 according to one embodiment, wherein (a) is a plan view and (b) is a front view. The ball built-in thrust washers 15 and 16 also have the same structure as the ball built-in thrust washer 14.

  The ball-incorporated thrust washer 14 may have a ring member 14a and a plurality of bearing balls 14b incorporated in the ring member 14a. The ring member 14a has an opening 14c at its central portion through which the axial pipe 11 passes, and an opening for incorporating a plurality of bearing balls 14b (in this embodiment, six bearing balls 14b) around the opening 14c. The plurality of bearing balls 14b are incorporated such that a portion thereof protrudes from the upper and lower surfaces of the ring-like member 14a, as shown in the front view of FIG.

  The rotation distributors 12, 13 rotate smoothly while in contact with the ball built-in thrust washers 14, 15, 16. Furthermore, when the pressurized cleaning fluid F is ejected from the nozzles 21a, 22a, 23a, the reaction causes the arms 21, 22, 23 to be pushed upward, and the rotation distributing unit 12 to which the arms 21, 22, 23 are connected is also It is also pushed upward. Then, the rotation distribution unit 12 rotates extremely smoothly around the axial pipe 11 while being mainly pressed by the upper ball built-in thrust washer 14. The same applies to the rotation distribution unit 13.

  For example, oil-impregnated polyacetal resin can be used as the material of the ring members 14a, 15a, 16a of the ball-incorporated thrust washers 14, 15, 16 but the material is limited if it is excellent in wear resistance and rust resistance. is not. For example, stainless steel or ceramics can be used as the material of the bearing balls 14b, 15b and 16b, but the material is not limited as long as they are excellent in wear resistance and rust resistance.

  In the present embodiment, the ball built-in thrust washer 16 is provided below the rotation distribution unit 13, but this may be omitted. As described above, when the rotating body is rotating, the rotating body is pushed upward by the reaction of the injection of the pressurized cleaning liquid F. Therefore, at the time of rotation, at least the ball built-in thrust washer is provided on the rotating body Just do it. That is, the ball incorporating thrust washer 14 may be disposed with respect to the rotation distributing unit 12, and the ball incorporating thrust washer 15 may be disposed with respect to the rotation distributing unit 13. However, in order to smooth the rotation from the stopped state to the state in which the rotating body is pushed upward, and to reduce the wear of the rotation distribution unit, it is preferable that a ball built-in thrust washer 16 be provided.

[Arm and nozzle]
Referring again to FIGS. 1 and 2, arms 21, 22, 23 are connected to the rotary distribution unit 12, and each of the arms 21, 22, 23 is bent downward near the tip and at the tip The nozzles 21a, 22a, 23a are attached. Similarly, the arms 31, 32, 33 are connected to the rotary distribution unit 13, and each of the arms 31, 32, 33 is bent downward near the tip end, and the nozzles 31a, 32a, 33a are attached to the tip end. It is attached. The material of the arms 21, 22, 23, 31, 32, 33 is preferably, for example, stainless steel, but is not particularly limited as long as it is a material having pressure resistance, rust resistance, and abrasion resistance. The nozzles 21a, 22a, 23a, 31a, 32a, 33a have high straightness of the pressurized cleaning fluid F so that the sprayed pressurized cleaning fluid F reaches the object S in a state of spreading as small as possible. Is preferred.

  The nozzles 21a, 22a, 23a at the tip of the arms 21, 22, 23 are directed in such a way that the pressurized cleaning fluid F1 is ejected in the direction opposite to the rotational direction A, as shown in FIG. The directions of the nozzles 31a, 32a, 33a at the tip of the arms 31, 32, 33 are determined such that the pressurized cleaning fluid F2 is ejected in the direction opposite to the rotational direction B. In other words, the jet directions of the nozzles 21a, 22a, 23a are determined such that the arms 21, 22, 23 rotate in the direction of the arrow A by the reaction of the jet of the pressurized cleaning fluid F1 jetted. The direction of injection of 32a, 33a is determined so that the arms 31, 32, 33 rotate in the direction of arrow B opposite to the direction of arrow A by the reaction of the injection of the pressurized cleaning fluid F2 injected. In addition, the length from the connection part with the rotary distribution unit 12 in each of the arms 21, 22 and 23 to just before the part bent downward is longer than the length of the same part in each of the arms 31, 32 and 33. ing. By thus determining the injection direction of the nozzle and the length of the arm, the nozzle unit 1 rotates the two rotating bodies in opposite directions without using the power of the motor etc. The pressure cleaning solutions F1 and F2 can be configured to hit the object S without interfering with each other.

  Therefore, the nozzle unit according to the present invention can apply the pressurized cleaning solution to the object to be cleaned in the same manner as the swing type while being rotary. That is, by using the nozzle unit according to the present invention, the pressurized cleaning liquid can be applied to the article to be cleaned from various directions, and the article to be cleaned is shaken back and forth and right and left by the force of the pressurized cleaning liquid. At that time, the pressurized cleaning fluid (F1) jetted from the nozzles (for example, nozzles with a large radius of rotation, for example, 21a, 22a and 23a) rotating outward in one direction strikes or hits the foreign matter attached to the object to be cleaned. Immediately after cleaning, the pressurized cleaning fluid (F2) sprayed from the nozzles (for example, nozzles with a small radius of rotation, for example 31a, 32a and 33a) rotating inward in the other direction from the nozzles hits foreign matter from the reverse direction. Can give intense vibration and complicated pressure. Therefore, the foreign matter firmly attached to the object to be cleaned can be removed.

  FIG. 1 also shows a locus drawn by the pressurized cleaning liquid jetted in the nozzle unit 1 on the transport surface for transporting the object to be cleaned. In the nozzle unit 1, a locus T1 of the pressurized cleaning liquid F1 ejected from the nozzles 21a, 22a, 23a, drawn on the plane P on which the object S is disposed, and pressurization injected from the nozzles 31a, 32a, 33a. The radial distance D between the cleaning liquid F2 and the locus T2 drawn on the plane P is preferably set such that the loci T1 and T2 do not overlap with each other and become minimum. In order to set the interval D in this way, the tips of the arms 21, 22 and 23 provided with the nozzles 21a, 22a and 23a for injecting the pressurized cleaning fluid F1 drawing the outer locus T1 are from the vertical direction to the inside It is slightly bent toward the center, that is, toward the center of the circle of the locus T1.

  In order to set the distance D, the tips of the arms 31, 32, 33 may be bent outward instead of the tips of the arms 21, 22, 23 being bent inward. Further, while the tips of the arms 21, 22, 23 are bent inward, the tips of the arms 31, 32, 33 may be bent outward.

  Although the number of arms connected to one rotation distribution unit is three in the present embodiment, it is not limited to this, and may be two or four or more, for example. However, if the number of arms is two, the cleaning ability may be reduced, and if it is five or more, the cost may be increased and the cost-effectiveness may be reduced. Moreover, although it is preferable that the number of arms is the same for every rotation distribution part, it is not limited to this. However, when the number of arms is changed for each rotation distribution unit, problems such as vibration may occur.

2. Nozzle Unit According to Second Embodiment FIG. 5 is a schematic perspective view of a rotary cleaning nozzle unit 1 ′ (hereinafter referred to as a nozzle unit 1 ′) according to a second embodiment of the present invention. In the following, only the configuration of the nozzle unit 1 ′ different from that of the nozzle unit 1 will be described. In the nozzle unit 1 ′, the rotation directions of the arms 31 ′, 32 ′, 33 ′ and the rotation distributing unit 13 to which they are attached correspond to the arms 31, 32, 33 of the nozzle unit 1 and the rotation distributing unit 13 to which they are attached. The nozzle unit 1 differs from the nozzle unit 1 only in that it is in the opposite direction to the direction of rotation (see FIG. 1). That is, the rotary distribution unit 13 located at the lower part of the body 10 and the arms 31 ′, 32 ′, 33 ′ extending therefrom rotate in the direction of the arrow B shown in FIG. The rotation direction B is the same as the rotation direction A of the rotation distribution unit 12 located at the upper part of the body 10 and the arms 21, 22 and 23 extending therefrom. The rotational directions A and B may be opposite to the direction of the arrow shown in FIG.

  Also in the present embodiment, the number of rotary distributors is not limited to two, and may be three or more. Also in the case of a nozzle unit having three or more rotary distributors, all rotary distributors are configured to rotate in the same direction.

  The nozzles 31'a, 32'a, 33'a at the tip of the arms 31 ', 32', 33 'are oriented such that the pressurized cleaning fluid F2 is ejected in the direction opposite to the rotational direction B. . In other words, the arrows 31 ', 32', 33'a are directed in the same direction as the arrow A in the direction of the arm 31 ', 32', 33 'due to the reaction of the jet of the pressurized cleaning fluid F2. It is set to rotate in the direction of B. The length from the connection with the rotary distribution unit 12 in each of the arms 21, 22 and 23 to just before the portion bent downward is longer than the length of the same portion in each of the arms 31 ', 32' and 33 '. It has become. By thus determining the injection direction of the nozzle and the length of the arm, the nozzle unit 1 ′ is ejected from the respective nozzles while the two rotating bodies rotate in the same direction without using the power of a motor or the like. The pressurized cleaning solutions F1 and F2 can be configured to hit the object S without interfering with each other.

  Therefore, the nozzle unit according to the present invention can apply the pressurized cleaning solution to the object to be cleaned in the same manner as the swing type while being rotary. That is, by using the nozzle unit according to the present invention, the pressurized cleaning fluid can be applied to the cleaning object moving on the belt conveyor from various directions. It is shaken from side to side. At that time, the pressurized cleaning fluid (F1) jetted from the nozzles (for example, nozzles with a large radius of rotation, for example, 21a, 22a and 23a) rotating outward in one direction strikes or hits the foreign matter attached to the object to be cleaned. Immediately after cleaning, the pressurized cleaning fluid (F2) sprayed from the nozzles (for example, nozzles with a small radius of rotation, for example, 31'a, 32'a and 33'a) rotating inward in the same direction with respect to those nozzles The foreign matter can be subjected to intense vibration and complicated pressure. Therefore, the foreign matter firmly attached to the object to be cleaned can be removed.

1, 1 'Rotary cleaning nozzle unit 10 Body 11 Shaft pipe 11a Internal space 11b, 11c Cleaning solution outlet 11d Bolt hole 12, 13 Rotational distribution unit 12a Main body 12b, 12d O ring holding member 12c, 12e O ring 12f space 12g opening 14, 15 and 16 Ball-incorporated thrust washers 14a Ring members 14b Bearing balls 14c Openings 17 Holding plates 18 Bolts 21, 22, 23, 31, 31 ', 32, 32', 33, 33 'Arms 21a, 22a, 23a, 31a, 31'a, 32a, 32'a, 33a, 33'a nozzle 2 belt conveyor 3 cleaning chamber 4 ceiling 5 supply pipe F1, F2 cleaning solution P plane S on which the object to be cleaned is disposed S to-be-cleaned object (scallops)
T1, T2 locus

Claims (11)

A rotary cleaning nozzle unit that rotates while injecting a cleaning solution, comprising:
A plurality of rotating bodies each having a plurality of radially extending arms and a nozzle provided on each of the plurality of arms,
The plurality of rotating bodies are arranged such that central axes of rotation are coaxially located,
A rotary washing nozzle unit characterized in that washing liquids jetted from each of the plurality of rotating bodies reach the workpiece without interfering with each other.   The rotary washing nozzle unit according to claim 1, wherein the rotation direction is determined such that at least one of the plurality of rotating bodies rotates in the opposite direction to the other rotating bodies.   The rotary washing nozzle unit according to claim 1 or 2, wherein the rotational directions of the plurality of rotary bodies are determined such that adjacent rotary bodies rotate in opposite directions to each other.   The rotary washing nozzle unit according to claim 1, wherein the rotational directions of the plurality of rotary bodies are determined so as to rotate in the same direction.   The plurality of rotating bodies are rotated by a reaction at the time of injection by determining the jetting direction of the nozzle such that the cleaning liquid is jetted in the direction opposite to the direction in which each of the rotating bodies rotates. The rotary washing nozzle unit according to any one of claims 1 to 4, wherein   The rotation according to any one of claims 1 to 5, wherein the trajectories drawn on the plane on which the cleaning liquid is disposed do not overlap with the cleaning liquid jetted from the plurality of rotating bodies. Type cleaning nozzle unit.   An axial pipe having an internal space through which the cleaning liquid passes and an outlet through which the cleaning liquid is discharged from the internal space, each of the plurality of rotating bodies rotates around the axial pipe, and the plurality of arms are 7. The rotary electric machine according to claim 1, further comprising: a rotary distributor that is attachable and supplies the cleaning liquid discharged from the outlet of the axial pipe to the plurality of arms. The rotary washing nozzle unit described.   The rotary distribution unit seals an internal space in which a cleaning liquid discharged from the outlet of the axial pipe fills the space between the axial pipe and the internal pipe, and seals the cleaning liquid filled in the internal space so as not to leak from the internal space. The rotary cleaning nozzle unit according to claim 7, further comprising: a sealing member.   The low friction member for reducing the resistance at the time of rotation is provided on the opposite side to the injection direction of the said washing | cleaning liquid of each of these rotary bodies, It is characterized by the above-mentioned. The rotary washing nozzle unit according to item 1.   The rotary washing nozzle unit according to claim 9, wherein the low friction member is a ball built-in thrust washer having an opening through which the axial pipe passes at a central portion. The rotary washing nozzle unit according to any one of claims 1 to 10, wherein the number of arms included in each of the plurality of rotating bodies is the same.

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