• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A nozzle system for a device for delivering a fluid jet under pressure comprising: a nozzle (1) having an inlet side and an outlet side and at least one nozzle opening (2) for at least one fluid, and a union nut (3) for fixing the nozzle (1) on End of a fluid line (4). According to the invention, the nozzle (1), in particular via a positive and permanent connection, connected to the union nut (3).
    公开号:CH711443A1
    申请号:CH01213/15
    申请日:2015-08-21
    公开日:2017-02-28
    发明作者:Campa Alessandro；Gnägi Yves
    申请人:Mvt Micro-Verschleiss-Technik Ag；
    IPC主号:
    专利说明:

    The invention relates to a nozzle system for a device for delivering a fluid jet under pressure according to the preamble of the independent claim. The invention further relates to a nozzle for a nozzle system according to the invention and to a (robot) lance for a surface processing device and / or material removal device having a nozzle system according to the invention.
    In known nozzle systems, the nozzle is subject to wear and is therefore usually inserted at the end of a fluid line and secured by a securing element with a thread or bayonet fitting to positively connect the nozzle with the end of the fluid line and at the same time to make interchangeable. However, it has been found that known nozzle systems are less suitable for the application of high pressures at the nozzle. Furthermore arise when inserting the nozzle in the end of the fluid line leak problems, which require the costly replacement of seals at each nozzle change.
    It is therefore an object of the invention to provide a nozzle system of the type mentioned, which avoids the disadvantages of the known and in particular allows operation at high pressures. Furthermore, the invention seeks to improve the replacement of the nozzle while ensuring the tightness.
    The object is achieved by a nozzle system according to the characterizing part of the independent claim.
    The nozzle system for a device for delivering a fluid jet under pressure comprises a nozzle with an inlet side and an outlet side and with at least one nozzle opening for at least one fluid and a union nut for attaching the nozzle at the end of a fluid line.
    According to the invention, the nozzle is connected to the union nut. Thus, a simplification of the insertion, removal and replacement of the nozzle is made possible because the nozzle, for example, can not be used wrong or wrong. Furthermore, only one spare part needs to be replaced. The replacement can thus be carried out in particular one-handed.
    The nozzle is preferably connected via a positive and permanent connection with the union nut. The union nut and the nozzle are formed as a separate component and subsequently joined together, so that removal of the nozzle is preferably possible only by damaging the nozzle and / or the union nut.
    The nozzle is preferably rotationally symmetrical and has a circumferential outer groove. Accordingly, the union nut has a circumferential inner groove. The nozzle and the union nut are connected to each other via a snap ring arranged in the outer groove and in the inner groove.
    A rotationally symmetrical nozzle can be manufactured easily and precisely. By the connection by means of a snap ring on the one hand a simple type of connection is given, on the other hand thus the removal of the nozzle from the nozzle holder without damaging the nozzle and / or the nut is virtually impossible.
    The union nut preferably has an insertion opening for the nozzle with a planar stop surface, wherein an end face bears against the stop face on the outlet side of the nozzle.
    The concern of the end face on the stop surface of the union nut allows precise alignment of the nozzle, so that the flow direction of the fluid through the nozzle is precisely adjustable.
    Preferably, the nozzle is only partially inserted with respect to their length in the insertion. More preferably, the nozzle is inserted less than half of its length in the insertion.
    The part of the nozzle which has not been inserted into the insertion opening and consequently protrudes is preferably inserted into a correspondingly dimensioned opening at the end of the fluid line. This allows easy handling and centering of the nozzle system during installation of the same.
    A further preferred embodiment provides that between the not inserted into the insertion portion of the nozzle and an inner wall of the union nut an annular space is formed.
    This results in a meandering course of the transition surface between the nozzle system and the fluid line, which improves the sealing properties.
    The nozzle preferably has a conical sealing surface in the region of the inlet side.
    Due to the conical sealing surface, which cooperates with the assembly of the nozzle system with a corresponding conically shaped surface of the fluid line, the sealing of the transition between the nozzle and fluid line can be improved while the nozzle are centered in the radial direction.
    Preferably, the nut on radial relief holes, which particularly preferably open into the annular space.
    The relief holes allow fluid to escape if a leak should occur in the transition region between the nozzle system and the fluid conduit. The leak can be visually and / or acoustically detectable. The relief wells also prevent dangerous pressure build-up in the nozzle system in case of leaks.
    Particularly preferably, the nozzle is subject to play and particularly preferably inserted with a radial and / or axial play in the union nut.
    The game of the nozzle allows a centering of the nozzle with the fluid line in the assembly of the nozzle system, in particular when the nozzle is connected radially play with the union nut and has a conical sealing surface.
    The invention further relates to a nozzle for a nozzle system according to the invention as described above.
    The nozzle is made of steel and provided with an inserted nozzle stone of a ceramic material. The stone is particularly preferably glued to the nozzle.
    The invention also relates to a water jet cutting device with a nozzle system according to the invention.
    An inventive nozzle system allows an operating pressure of up to 3000 bar.
    The invention will be described below with reference to a preferred embodiment in conjunction with the drawings better. Show it:<Tb> FIG. 1 <SEP> is a sectional view of a preferred embodiment of a nozzle system according to the invention,<Tb> FIG. 2 <SEP> an exploded view of the nozzle system of Fig. 1, and<Tb> FIG. 3 <SEP> a cutting lance with screwed nozzle system according to FIGS. 1 and 2.
    1, 2 and 3, a preferred embodiment of a nozzle system according to the invention is shown. The nozzle system of FIG. 1 is preferably used in a cutting lance 15, as shown in FIG.
    Fig. 2, from which the details are more apparent, shows a nozzle 1, which is rotationally symmetrical.
    The nozzle 1 has a central, continuous bore, through which a fluid can be conveyed from an inlet side to an outlet side of the nozzle 1 and is schematically indicated by the arrow A. The inlet side and outlet side of the nozzle are in Figs. 1 to 3 respectively left and right of the nozzle 1. At the outlet side of the nozzle 1, a nozzle opening 2 is formed, which is shown schematically with an arrow.
    An edge in the region of the inlet side of the nozzle 1 is chamfered such that a conical sealing surface 12 is formed, whose operation will be explained later. An end face 9 in the region of the outlet side of the nozzle 1 forms a plane which is perpendicular to an axis of rotation of the nozzle 1.
    In the nozzle 1, a nozzle block 14 is inserted from a ceramic material and bonded to the nozzle 1. Furthermore, the nozzle has a circumferential outer groove 5.
    The union nut 3 is also formed as a rotationally symmetrical component with an inner, continuous bore. The inner bore of the union nut 3 has along the direction of the arrow A regions of different diameters. The area with the larger diameter has an inner wall 10 with an internal thread. This is followed by an insertion opening for the nozzle 1 with a smaller diameter, which has a circumferential inner groove 6 and a flat stop surface 8. The stop surface 8 is also perpendicular to a rotational axis of the union nut 3. The stop surface 8 further has an outlet opening for the fluid, which, as shown in FIGS. 1 and 3 visible, the nozzle opening 2 releases to the outside.
    The nozzle 1 and the union nut 3 are connected by the snap ring 7 with each other. A radial depth of the outer groove 5 allows the snap ring 7 during assembly completely in the outer groove 5 is compressible and lowered. The nozzle 1 can thus be inserted into the insertion opening of the union nut 3 until the outer groove 5 coincides with the inner groove 6 and the snap ring 7 can expand again and engage in the inner groove 6. The Aussennnut 5, the inner groove 6 and the snap ring 7 are further coordinated so that an axial clearance of the nozzle 1 is ensured. Furthermore, the nozzle 1 and the insertion opening of the union nut 3 are also matched to one another such that the nozzle 1 is received with a radial clearance in the insertion opening of the union nut 3. Furthermore, the connection between the nozzle 1 and the union nut 3 can no longer be released without the nozzle 1 and / or the union nut 3 being damaged.
    When screwing the union nut 3 on the end of a fluid line 4, as shown in Fig. 3, the end face 9 of the nozzle 1 experiences a stop against the stop surface 8 of the union nut 3 and is thus aligned and sealed. The conical sealing surface 12 of the nozzle 1 cooperates with a corresponding surface of the fluid line 4 and causes a radial centering and also a seal of the nozzle first
    In Figs. 1 and 3, an annular space 11 is visible, which is formed when inserting the nozzle 1 into the insertion opening of the union nut 3 between the inner wall 10 of the union nut 3 and the nozzle 1. Relief holes 13, of which only one is provided in the figures with a reference numeral connect an outer side of the cutting lance 15 with the annular space 11, so that in case of leakage of the transition between the nozzle 1, union nut 3 and / or fluid line 4 leaking fluid through the relief holes 13 can escape. A leak can thus be determined optically. For gases as a fluid, it is also conceivable that the relief holes 13 are formed such that an escape of gas generates a whistling sound, which is acoustically perceptible.
    权利要求:
    Claims (11)
    [1]
    A nozzle system for a device for delivering a fluid jet under pressure comprising:A nozzle (1) with an inlet side and an outlet side and with at least one nozzle opening (2) for at least one fluid, and- A union nut (3) for fixing the nozzle (1) at the end of a fluid line (4),characterized in that the nozzle (1), in particular via a positive and permanent connection with the union nut (3) is connected.
    [2]
    2. nozzle system according to claim 1, characterized in that the nozzle (1) is rotationally symmetrical and has a circumferential outer groove (5) and that the union nut (4) has a circumferential inner groove (6), wherein nozzle (1) and union nut ( 3) are connected to each other via a in the outer groove (5) and in the inner groove (6) arranged snap ring (7).
    [3]
    3. Nozzle system according to claim 1 or 2, characterized in that the union nut (3) has an insertion opening for the nozzle (1) with a planar stop surface (8), wherein an end face (9) on the outlet side of the nozzle (1) abuts the stop surface (8).
    [4]
    4. nozzle system according to claim 3, characterized in that the nozzle (1) is only partially inserted with respect to their length in the insertion, preferably less than half their length.
    [5]
    5. nozzle system according to claim 4, characterized in that between the not inserted into the insertion portion of the nozzle (1) and an inner wall (10) of the union nut (3) an annular space (11) is formed.
    [6]
    6. nozzle system according to one of claims 1 to 5, characterized in that the nozzle (1) in the region of the inlet side has a conical sealing surface (12).
    [7]
    7. nozzle system according to one of claims 1 to 6, characterized in that the union nut (3) has radial relief holes (13).
    [8]
    8. nozzle system according to claim 5 and 7, characterized in that the relief holes in the annular space (11) open
    [9]
    9. nozzle system according to one of claims 2 to 8, characterized in that the nozzle (1) with play, in particular with a radial and / or axial play is inserted into the union nut.
    [10]
    10. nozzle (1) made of steel with an inserted nozzle block (14) made of a ceramic material for a nozzle system according to one of the preceding claims.
    [11]
    11. Cutting lance (15) for a surface treatment device and / or material removal device with a nozzle system according to one of claims 1 to 9.
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    同族专利:
    公开号 | 公开日
    CH711443B1|2019-05-31|
    EP3132896B1|2020-05-27|
    EP3132896A1|2017-02-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3705693A|1971-07-16|1972-12-12|Norman Franz|Means for sealing fittings and nozzle assemblies at extremely high fluid pressures|
    US4162763A|1978-01-10|1979-07-31|Camsco, Inc.|Water jet valve assembly|
    SU1199271A1|1983-12-20|1985-12-23|Специальное Конструкторское Бюро Гидроимпульсной Техники Со Ан Ссср|Injector for obtaining the cutting jet of liquid|
    US5226597A|1991-09-16|1993-07-13|Ursic Thomas A|Orifice assembly and method providing highly cohesive fluid jet|
    US5730358A|1995-12-22|1998-03-24|Flow International Corporation|Tunable ultrahigh-pressure nozzle|
    US20080191066A1|2007-02-13|2008-08-14|Ted Jernigan|Water cutting assembly and nozzle nut|
    EP2899002A1|2014-01-27|2015-07-29|Sugino Machine Limited|Fluid nozzle|
    JP5232267B2|2011-04-26|2013-07-10|東芝機械株式会社|Spray gun for liquid honing|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH01213/15A|CH711443B1|2015-08-21|2015-08-21|Nozzle system for a device for delivering a fluid jet under pressure, nozzle for such a nozzle system and cutting lance with such a nozzle system.|CH01213/15A| CH711443B1|2015-08-21|2015-08-21|Nozzle system for a device for delivering a fluid jet under pressure, nozzle for such a nozzle system and cutting lance with such a nozzle system.|
    EP16183516.0A| EP3132896B1|2015-08-21|2016-08-10|Nozzle system for device for dispensing a fluid jet under pressure and lance with such a nozzle system|
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