EP3687702B1 - Rotationseinheit mit hohlwellenmotor - Google Patents

Rotationseinheit mit hohlwellenmotor Download PDF

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Publication number
EP3687702B1
EP3687702B1 EP18779321.1A EP18779321A EP3687702B1 EP 3687702 B1 EP3687702 B1 EP 3687702B1 EP 18779321 A EP18779321 A EP 18779321A EP 3687702 B1 EP3687702 B1 EP 3687702B1
Authority
EP
European Patent Office
Prior art keywords
coating
lance
tool holder
rotating unit
shaft motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18779321.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3687702A1 (de
Inventor
Stefan Richter
Mike Hirschfeldt
Dr. Klaus Stefan KLIMEK
Philipp Marian Müller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volkswagen AG
Original Assignee
Volkswagen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volkswagen AG filed Critical Volkswagen AG
Publication of EP3687702A1 publication Critical patent/EP3687702A1/de
Application granted granted Critical
Publication of EP3687702B1 publication Critical patent/EP3687702B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
    • B05B13/0627—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies
    • B05B13/0636—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies by means of rotatable spray heads or nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0207—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/025—Rotational joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/22—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc
    • B05B7/222—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/134—Plasma spraying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/004—Cylinder liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/10—Arrangements for collecting, re-using or eliminating excess spraying material the excess material being particulate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/20—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed by flame or combustion
    • B05B7/201—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed by flame or combustion downstream of the nozzle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F2001/008—Stress problems, especially related to thermal stress
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F2200/00—Manufacturing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/42—Plasma torches using an arc with provisions for introducing materials into the plasma, e.g. powder, liquid

Definitions

  • the invention relates to a rotary unit for a coating lance device according to the preamble of claim 1 and a coating lance device according to the preamble of claim 7 for thermal coating of an interior, preferably a cylinder bore of a cylinder crankcase.
  • thermal coating processes are powder plasma spraying, wire spraying processes such as plasma transfer wire arc (PTWA) and wire arc spraying (LDS) or HVOF spraying (high-speed flame spraying). Due to the cramped conditions when coating a cylinder liner of a cylinder bore, rotating coating lances are used which can be inserted axially into the cylinder bore.
  • PTWA plasma transfer wire arc
  • LDS wire arc spraying
  • HVOF spraying high-speed flame spraying
  • Such a coating lance is off, for example WO 2016/015 922 A1 , which deals with a device and a method for metallic coating and a receiving unit for this device, for example on page 2, first to third paragraph, known.
  • the GB 2 079 637 A relates to a completely different area of technology, namely the inside cement coating of pipelines, the diameter and type of coating being unsuitable for thermal coating.
  • the device shown therein for cement coating the inner wall of pipes with a diameter of, for example, more than 0.75 m comprises a cement distributor head which is pivotably connected by a bolt and a hook on a tow trowel.
  • An atomizing spray nozzle is mounted coaxially to the trowel and sprays atomized hardening control fluid onto the freshly smoothed mortar.
  • Flexible pipe connections direct air and curing control fluid to the nozzle on the trowel from the cement distributor head. The pivoting connection ensures that the atomizing spray nozzle remains in the center of the tube when turning corners.
  • a metal spray gun is known from US Pat. No. 6,373,900 in which a wire, not shown in detail, is conveyed via the hollow shaft of a motor to a coaxially rotating nozzle, the nozzle outlet not being described or shown.
  • the invention is based on the object of reducing the moving mass of the entire coating lance device in a rotary unit of the type mentioned at the outset and increasing the speed without vibrations because superimposed vibrations strongly influence the layer result and the service life of the moving unit used, for example a Robots or portals, greatly reduce. Furthermore, the task is to reduce the acquisition costs, operating costs and manufacturing costs.
  • the rotary drive is designed as a hollow shaft motor coaxially to the axis of rotation of the tool holder, and wherein the tool holder and the coating material supply and the process media supply are arranged centrally to the hollow shaft motor.
  • the rotary unit is primarily characterized in that the rotary drive is designed as a hollow shaft motor coaxially to the axis of rotation of the tool holder, the tool holder and the coating material feed and the process media feed being arranged centrally to the hollow shaft motor.
  • the coating material is provided by a central coating material supply, the process media by a process media supply which is arranged radially outside, preferably encircling, and which are fixedly connected to the tool holder, that is to say in a rotating manner.
  • These components are all arranged coaxially with one another.
  • the hollow shaft motor is arranged at least over an axial section of the process medium supply and acts on a rotor, preferably the armature, which is firmly connected to the process medium supply.
  • the coaxial order of the coating material supply and the process media supply can be freely selected. However, it is advantageous to arrange the coating material guide centrally because the coating material can thus be fed centrally to the connected coating lance without great effort.
  • a slip ring transmitter for transmitting electrical power current to the coating lance is arranged radially outside of the hollow shaft motor.
  • a slip ring transmitter is provided for supplying the burner of the coating lance with electrical power.
  • the hollow shaft motor is preferably designed to be brushless.
  • a suction device for removing abrasive debris from the slip ring assembly, and at least one air nozzle is preferably also provided, by means of which removal of the abrasive debris can be supported.
  • the tool holder is set up to hold different coating lances and preferably has a zero point marking for aligning a respective coating lance with repeat accuracy and particularly preferably comprises a reading device for reading out identification information of the respectively recorded coating lance.
  • a rotary unit 10 is shown schematically, the compactness of the structure of the rotary unit 10 with the rotary drive 13, here designed as a hollow shaft motor 13a, being clearly visible.
  • a slip ring transmitter 16 is provided radially on the very outside, by means of which power current can be transmitted to the coating lance 30.
  • the coating material feed 11 is provided centrally, into which (according to this illustration from above) coating material for the coating lance 30 can be fed.
  • a process media feed 12 is arranged surrounding the coating material feed 11 and radially inside the hollow shaft motor 13 a, for example for process gas and / or cooling water.
  • the tool holder 14 is provided below the slip ring transmitter 16 coaxially and rotatably by the hollow shaft motor 13a.
  • an (optional) reading device 20 the (optional) zero point marking 19 also being arranged on the reading device 20 here.
  • the introduced coating lance 30 has a corresponding zero point 32.
  • the zero point 32 is aligned with the zero point marking 19.
  • the coating lance 30 advantageously has an identification unit 31, for example an RFID chip, so that the coating lance 30 used can be identified automatically by means of the reading device 20.
  • the coating lance 30 is shown here aligned with the cylinder axis 45 and emerged from the interior 40 to be coated, here a cylinder bore 41 of a cylinder crankcase 42, and applied the desired coating 44 to the cylinder running surface 43 there.
  • FIGS. 2 and 3 a possible embodiment of a rotation unit 10 is shown, wherein in Fig. 2 the rotation unit 10 in a perspective view without the coating lance 30 and in FIG Fig. 3 the rotation unit 10 is shown in a perspective sectional view with the coating lance 30.
  • a housing 22 and stationary supply connections are shown, namely a first supply connection 24 for coating material, preferably in powder or wire form, a second supply connection 25 for, for example, cooling water, a third supply connection 26, for example for process gas, and a fourth Supply connection 27, for example for power current for the slip ring assembly 16.
  • the housing 22 is primarily used to keep the necessary bearing spacing ready to support the high rotational speed of the coating lance 30.
  • the entire rotation unit 10 is connected to this housing 22 with a portal or a robot.
  • a suction device 17 is provided on the housing, of which the suction connection in Fig. 2 is characterized, and wherein the suction device 17 (optional) by an air nozzle 18 (cf. Fig. 3 ) is supported.
  • the component which includes the supply connections 24 to 26 and the housing 22 are stationary and therefore are not rotated about the axis of rotation 15. Only the centrally arranged components including the tool holder 14 and the coating lance 30 can be rotated about the axis of rotation 15.
  • the first supply connection 24 has a (known) sealed and encapsulated roller bearing 21, for example according to the SPS Series from DSTI.
  • the housing 22 has a fastening connection 28, by means of which the rotation unit 10 is mounted in a coating lance device 100 (cf. Fig. 4 ) can be moved horizontally and vertically.
  • a coating lance device 100 cf. Fig. 4
  • the inside 40 immersible coating nozzle 33 and a coating jet 34 shown schematically.
  • a lance connection 35 is shown in the immediate vicinity of the (optional) reading device 20, for example an RFID reading device.
  • a simplified coating lance device 100 is shown, in which two rotation units 10, each with a coating lance 30 by means of a lifting actuator 23 in a portal along a horizontal axis and a vertical axis, a workpiece table 46, for example for a cylinder crankcase 42 (cf. Fig. 1 ), can be supplied. Only one rotation unit 10 is shown here, and for a second, preferably structurally identical, rotation unit, the mating connection 47 for the fastening connection 28 (cf. Fig. 3 ) of the housing 22.
  • the rotation unit proposed here allows low-vibration or vibration-free operation at high speeds for a coating lance for thermal coating.
  • List of reference symbols 10 Rotation unit 43 Cylinder surface 11 Coating material feed 44 Coating 12th Process media supply 45 Cylinder axis 13th Rotary drive 46 Workpiece table 13a Hollow shaft motor 47 Mating connection for one 14th Tool holder Mounting connection 15th Axis of rotation 100 Coating lance device 16 Slip ring assemblies 17th Suction device 18th Air nozzle 19th Zero point marking 20th Reading device 21 roller bearing 22nd casing 23 Stroke actuator 24 first supply connection for Coating material 25th second supply connection for cooling water 26th third supply connection for Process gas 27 fourth supply connection for Power current 28 Mounting connection 30th Coating lance 31 Identification unit 32 Zero point 33 Coating nozzle 34 Coating beam 35 Lance connection 40 inner space 41 Cylinder bore 42 Cylinder crankcase

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electromagnetism (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Nozzles (AREA)
EP18779321.1A 2017-09-26 2018-09-21 Rotationseinheit mit hohlwellenmotor Active EP3687702B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017217069.7A DE102017217069A1 (de) 2017-09-26 2017-09-26 Rotationseinheit für eine Beschichtungslanzeneinrichtung zum thermischen Beschichten eines Innenraums, sowie eine solche Beschichtungslanzeneinrichtung
PCT/EP2018/075667 WO2019063442A1 (de) 2017-09-26 2018-09-21 Rotationseinheit mit hohlwellenmotor

Publications (2)

Publication Number Publication Date
EP3687702A1 EP3687702A1 (de) 2020-08-05
EP3687702B1 true EP3687702B1 (de) 2021-11-24

Family

ID=63708354

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18779321.1A Active EP3687702B1 (de) 2017-09-26 2018-09-21 Rotationseinheit mit hohlwellenmotor

Country Status (5)

Country Link
US (1) US11406998B2 (zh)
EP (1) EP3687702B1 (zh)
CN (1) CN111107942B (zh)
DE (1) DE102017217069A1 (zh)
WO (1) WO2019063442A1 (zh)

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DE102019126651A1 (de) * 2019-10-02 2021-04-08 Gebr. Heller Maschinenfabrik Gmbh Lichtbogenbrenner und Lichtbogen-Drahtspritzeinrichtung
DE102019126643A1 (de) * 2019-10-02 2021-04-08 Gebr. Heller Maschinenfabrik Gmbh Lichtbogenbrenner und Lichtbogen-Drahtspritzeinrichtung
EP3840541A1 (en) 2019-12-20 2021-06-23 Molecular Plasma Group SA Improved shield for atmospheric pressure plasma jet coating deposition on a substrate
CN112604850A (zh) * 2020-12-10 2021-04-06 熊宇 一种空心圆柱零件内外圈防锈油均匀喷涂装置

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Also Published As

Publication number Publication date
US11406998B2 (en) 2022-08-09
EP3687702A1 (de) 2020-08-05
DE102017217069A1 (de) 2019-03-28
WO2019063442A1 (de) 2019-04-04
US20200222931A1 (en) 2020-07-16
CN111107942B (zh) 2022-05-24
CN111107942A (zh) 2020-05-05

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