WO2017174832A1 - Dispositif de décontamination pour l'élimination des particules ferromagnétiques dans les roulements et procédé de décontamination - Google Patents

Dispositif de décontamination pour l'élimination des particules ferromagnétiques dans les roulements et procédé de décontamination Download PDF

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Publication number
WO2017174832A1
WO2017174832A1 PCT/ES2016/070231 ES2016070231W WO2017174832A1 WO 2017174832 A1 WO2017174832 A1 WO 2017174832A1 ES 2016070231 W ES2016070231 W ES 2016070231W WO 2017174832 A1 WO2017174832 A1 WO 2017174832A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearings
ferromagnetic particles
cleaning
bearing
holes
Prior art date
Application number
PCT/ES2016/070231
Other languages
English (en)
Spanish (es)
Inventor
Javier Anduaga Salvatierra
Aitor ZURUTUZA SANTA CRUZ
Igor Reinares Agirretxe
Original Assignee
Laulagun Bearings, S,L
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 Laulagun Bearings, S,L filed Critical Laulagun Bearings, S,L
Priority to ES201890062A priority Critical patent/ES2705440B1/es
Priority to PCT/ES2016/070231 priority patent/WO2017174832A1/fr
Publication of WO2017174832A1 publication Critical patent/WO2017174832A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
    • F16C33/6607—Retaining the grease in or near the bearing
    • F16C33/6614—Retaining the grease in or near the bearing in recesses or cavities provided in retainers, races or rolling elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/025—High gradient magnetic separators
    • B03C1/031—Component parts; Auxiliary operations
    • B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
    • B03C1/0332—Component parts; Auxiliary operations characterised by the magnetic circuit using permanent magnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/28—Magnetic plugs and dipsticks
    • B03C1/286—Magnetic plugs and dipsticks disposed at the inner circumference of a recipient, e.g. magnetic drain bolt
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
    • F16C33/6622—Details of supply and/or removal of the grease, e.g. purging grease
    • F16C33/6625—Controlling or conditioning the grease supply
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0294—Detection, inspection, magnetic treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2235/00—Cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/10—Application independent of particular apparatuses related to size
    • F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/31—Wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
    • F16C33/6622—Details of supply and/or removal of the grease, e.g. purging grease

Definitions

  • the object of the invention is the process of cleaning said particles contained inside the bearings, in particular in the lubricating grease.
  • the device is applicable to large-scale bearings, such as those used in wind turbine blades, construction machinery and / or water treatment.
  • the present device characterizes its special configuration and design that make it a useful and simple element in its use, being especially effective for the removal of ferromagnetic particles.
  • REPLACEMENT SHEET (RULE 26) importance, in order to guarantee the correct operation and safety offered by said bearings, as well as extend their life.
  • Bearings lubricated with grease are usually formed, in general, by one or several concentric rings, among which are rolling elements (balls, rollers, etc.) immersed in grease, in which the grease has among other objectives that of generate a layer of grease on the contact of each rolling element and the rings between which it is housed, in order to reduce friction between the elements, generating adequate contact and minimizing the effects derived from metal contact (rolling element ) - metal (track), in addition to being a key element to prevent corrosion.
  • rolling elements balls, rollers, etc.
  • the device for cleaning ferromagnetic particles housed in the lubrication grease of bearings, particularly large bearings, is formed as a bushing / tooling that is housed in the bearing, in the bearings.
  • greasing holes of the bearings that is, would have a suitable diameter and length, corresponding to the greasing holes of the bearings.
  • said device could be located in other holes made specifically in the bearing for said purpose.
  • the device which is shaped like a bushing, is designed in such a way that it can be mounted and removed in a simple way, in addition to fulfilling the function of capturing ferromagnetic particles immersed in the lubrication grease, resulting from friction between the elements of rolling, separating elements and concentric rings between which said rolling elements are housed.
  • the device comprises a base piece or bushing of length and diameter such that they allow its introduction into the bearing to the raceway, preferably through the greasing holes of the bushing.
  • a detachable permanent magnetic element is arranged on the end of the bushing that is inserted into the bearing.
  • said removable magnetic element has a threaded recess on which an annular configuration magnet is fixed which, on one of its bases, has a threaded rod for fixing on the free end of the bushing, forming a detachable united set.
  • the device once housed in its hole, having a permanent magnet at its free end, allows continuously, and without interruption of the normal operation of the bearing, attract and retain in the permanent magnet the ferromagnetic particles that, dragged by the grease, that pass close to the magnet.
  • the holes where the cleaning device is inserted can be the greasing holes or any other perforation that allows access to the bearing greasing channel, understood as the greasing channel of a bearing the existing channel between the rolling elements and the rings between which they are housed specifically made to allow the circulation of grease.
  • the cleaning process of the bearings would be carried out with the device described above and would have the steps of:
  • Figure 1 represents an external view of the bearing mounted with a shovel where the holes appear in which the cleaning devices will be introduced.
  • Figure 2 represents a cut view of the inside of the bearing showing a hole used to introduce the device in question.
  • Figure 3 represents the separate assembly of the device in which the arranged components are differentiated.
  • Figure 4 represents a general view of the assembly of the mounting device.
  • FIG 1 we can schematically observe a part of a blade (1) of a wind turbine on which a bearing (2) is mounted, which has one or more greasing holes (3) on its periphery.
  • FIG 2 showing partially sectioned the bearing (2), it is shown how the greasing holes (3) connect the outside of the bearing with the space in which the rolling elements (cylinders, balls) (4) are immersed in a lubricating grease (not shown).
  • Figure 3 shows the disassembled device for cleaning object of the invention comprising:
  • a permanent magnetic element (7) that in a possible embodiment could be detachably attached to the free end of the base piece or bushing (5).
  • said free end has a threaded bore ( 6), while the permanent magnet has a threaded rod (8).
  • the base piece or bushing (5) has a base (9) from which a rod (10) of smaller diameter emerges than that of the base piece.
  • the length of the rod (10) is a function of the bearing, corresponding to the space between the outside of the bearing and the place where it comes into contact with the raceway.
  • the base (9) has a diameter greater than the diameter of the hole or the hole where it is introduced in order to ensure that the device does not penetrate more than the length of the rod (10).
  • the cleaning device can be externally threaded at least part of the length of the rod (10), the threaded hole (3) being on the other hand.
  • the free end of the permanent magnet (7) can be flat or have a curved plane termination so that it adapts to the shape of the greasing channel (1 1) (figure 2) in which case a form of ensure that this curved shape is aligned with the shape of the bearing in that part
  • Figure 4 shows the fully assembled cleaning device, where the permanent magnet is fixed on the free end of the rod (10) of the base piece or bushing (5).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

Ce dispositif sert à capturer les particules ferromagnétiques immergées dans la graisse lubrifiante de roulements, résultant du frottement entre les éléments de roulement, les éléments séparateurs et les bagues concentriques entre lesquels les éléments de roulement sont montés, et présente une forme de douille pouvant être montée dans les orifices des roulements et extraite de ces derniers de manière simple. Le dispositif comprend une pièce de base ou douille présentant une longueur et un diamètre permettant son introduction à travers les orifices de lubrification de la douille pour accéder à la piste de roulement. Un élément magnétique constitué d'un aimant permanent est disposé l'extrémité libre de la douille Le procédé permet d'extraire les particules sans qu'il soit nécessaire d'extraire la graisse et d'interrompre l'utilisation normale du roulement.
PCT/ES2016/070231 2016-04-06 2016-04-06 Dispositif de décontamination pour l'élimination des particules ferromagnétiques dans les roulements et procédé de décontamination WO2017174832A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES201890062A ES2705440B1 (es) 2016-04-06 2016-04-06 Dispositivo para limpieza de particulas ferromagneticas de rodamientos y procedimiento de limpieza
PCT/ES2016/070231 WO2017174832A1 (fr) 2016-04-06 2016-04-06 Dispositif de décontamination pour l'élimination des particules ferromagnétiques dans les roulements et procédé de décontamination

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2016/070231 WO2017174832A1 (fr) 2016-04-06 2016-04-06 Dispositif de décontamination pour l'élimination des particules ferromagnétiques dans les roulements et procédé de décontamination

Publications (1)

Publication Number Publication Date
WO2017174832A1 true WO2017174832A1 (fr) 2017-10-12

Family

ID=56112991

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2016/070231 WO2017174832A1 (fr) 2016-04-06 2016-04-06 Dispositif de décontamination pour l'élimination des particules ferromagnétiques dans les roulements et procédé de décontamination

Country Status (2)

Country Link
ES (1) ES2705440B1 (fr)
WO (1) WO2017174832A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112963442A (zh) * 2021-04-09 2021-06-15 山东欧冶轴承有限公司 一种连铸机专用满装滚子移位轴承

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150975A (en) * 1987-02-12 1992-09-29 Hy-Tech Hydraulics, Inc. Compact self-lubricating bearing system
FR2694610A1 (fr) * 1992-08-10 1994-02-11 Rks Procédé de contrôle de l'état d'usure d'un roulement, et roulement correspondant.
US20060054402A1 (en) * 2004-08-05 2006-03-16 Dorian George P Two part oil or fluid drain plug with magnet
WO2009000251A1 (fr) * 2007-06-26 2008-12-31 Schaeffler Kg Cage de roulement et bague de roulement à aimantation permanente, utilisées pour réduire le nombres de particules dans l'espace de roulement d'un palier à roulement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004052598A1 (de) * 2004-10-29 2006-05-04 Aktiebolaget Skf Windenergieanlage
DE102007022675A1 (de) * 2007-05-15 2008-11-20 Schaeffler Kg Dichtungsanordnung für ein Wälzlager
DE102011016049B4 (de) * 2011-03-25 2021-12-30 Imo Holding Gmbh Drehverbindung(en)und Wälzlager mit magnetischen oder magnetisierten Beabstandungskomponenten
DE102014213879A1 (de) * 2014-07-16 2016-01-21 Aktiebolaget Skf Lager

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150975A (en) * 1987-02-12 1992-09-29 Hy-Tech Hydraulics, Inc. Compact self-lubricating bearing system
FR2694610A1 (fr) * 1992-08-10 1994-02-11 Rks Procédé de contrôle de l'état d'usure d'un roulement, et roulement correspondant.
US20060054402A1 (en) * 2004-08-05 2006-03-16 Dorian George P Two part oil or fluid drain plug with magnet
WO2009000251A1 (fr) * 2007-06-26 2008-12-31 Schaeffler Kg Cage de roulement et bague de roulement à aimantation permanente, utilisées pour réduire le nombres de particules dans l'espace de roulement d'un palier à roulement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112963442A (zh) * 2021-04-09 2021-06-15 山东欧冶轴承有限公司 一种连铸机专用满装滚子移位轴承

Also Published As

Publication number Publication date
ES2705440A2 (es) 2019-03-25
ES2705440B1 (es) 2020-01-20
ES2705440R1 (es) 2019-04-11

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