WO2017155493A1 - Logement de palier pour arbre de tambour et son procédé de production - Google Patents

Logement de palier pour arbre de tambour et son procédé de production Download PDF

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Publication number
WO2017155493A1
WO2017155493A1 PCT/TR2017/050095 TR2017050095W WO2017155493A1 WO 2017155493 A1 WO2017155493 A1 WO 2017155493A1 TR 2017050095 W TR2017050095 W TR 2017050095W WO 2017155493 A1 WO2017155493 A1 WO 2017155493A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
bearing
bearing housing
rear wall
drum
Prior art date
Application number
PCT/TR2017/050095
Other languages
English (en)
Inventor
Mucahit AVCI
Ismail TURKOGLU
Murat TAYSI
Turgay Serbet
Original Assignee
Lang Yuzer Otomotiv Yan San. Ve Tic. A. S.
Al-Kor Makina Kalip San. Ve Tic. A. S.
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 Lang Yuzer Otomotiv Yan San. Ve Tic. A. S., Al-Kor Makina Kalip San. Ve Tic. A. S. filed Critical Lang Yuzer Otomotiv Yan San. Ve Tic. A. S.
Publication of WO2017155493A1 publication Critical patent/WO2017155493A1/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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/07—Fixing them on the shaft or housing with interposition of an element
    • F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D06F37/269—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for the bearing of the rotary receptacle
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/261—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements
    • D06F37/262—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements made of plastic material, e.g. by injection moulding
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/264—Tubs provided with reinforcing structures, e.g. ribs, inserts, braces
    • 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
    • F16C2314/00—Personal or domestic articles, e.g. household appliances such as washing machines, dryers

Definitions

  • the invention relates to bearing roller of a drum that is suitable for use in washing machines or washing dryers nowadays, and relates to an economic, resistance increased, environmentally sensitive roller embodiment.
  • the washing operation is carried out according to the type and pollution of the laundry with the help of a control knob located on the machine.
  • Constituent parts of the washing machine can be sorted as tub, drum, shaft, roller recess, drum metal sheets, balance weight, motor.
  • a two-piece plastic housing for the rollers that mount the drum shafts of the washing machines and the coaxiality of the rollers with the drum shaft and the positioning at a certain distance from each other are provided.
  • the improvement explained in the claims in the invention is said to be provided by two pieces of plastic which are injected onto the rollers so that the roller surfaces coincide with the axis of rotation of the drum without the need for machining of the roller surfaces and that the distance between the rollers can be determined. That the roller bearing produced from the casting material used in the present case is heavy creates a cost resulting from the much use of the material. In order to provide coaxiality with the mentioned method, a new bearing housing is presented. However, due to the two-piece construction, desired performance will not be achieved during assembly
  • the material of the tub is made of plastic metal and the drum shaft and the elements in the bearing are made of metal.
  • the operation of washing machines leads to different fatigue of the two different materials, and distortion torsions take place over time.
  • a new bearing element or bearing assembly bearing the shaft providing motion to the drum in the opening on the tub to reduce the effect of fatigue occuring in the technical, economic and present situation, it is expected that the new structure will prevent especially the corrosion, fatigue and strength reductions that may occur over time. At the same time, it is important to reduce the cost of production.
  • the invention provides a more economical bearing housing than the existing applications.
  • the topic of the invention is that a new roller bearing housing will be able to produced from recycled material.
  • the use of lighter materials than the present structures used in the washing machine bearings will reduce the logistical costs and / or reduce the parts costs and operations, thus environmentally friendly washing machine production will be provided.
  • the product is aimed to be a more robust due to the fact that the washing machine drum shaft is covered with plastic is the same basic material as the tub body to be joined, to be more economical due to the fact that the coating is plastic, to be a more energy- efficient due to being lightweight.
  • the invention relates to a tub with a loading opening surrounding a rotary drum having a loading opening and a bearing assembly comprising at least two rollers positioned in a front opening and a rear opening bearing the drum shaft rotating the drum in this hole in washing machines having a connecting groove on the rear wall of this tub and followed by a rear wall channel in order to accomplish the above objectives.
  • the invention comprises that at least one bearing housing coaxial with and deep drawn inside the rear wall channel such that covering inner wall in a contacting manner and that in a hollow form surrounding the drum shaft extending inside made of an inverse tapering sheet wherein the diameter of front and rear openings are arranged such that the roller bearings are fitting properly.
  • the contact of the surfaces with each other will be most effective with lighter material.
  • the lateral surface of said housing is provided with at least one holding protrusion is being formed to provide a recess on the different points at a predetermined distance along the periphery of the side wall of the bearing housing against a channel side wall of the rear wall channel.
  • the invention comprises a housing middle part forming a recess towards the gap in the bearing housing narrowing so as to correspond to the smaller diameter than the diameter of each of the rollers between housing front part and the housing rear part in order to accomplish above objectives.
  • This structure also creates material saving.
  • the invention comprises multiple holding protrusions with rounded hemisphere-like form corners forming recesses in the radial form to the rear wall from the longitudinal axis of the tubular bearing housing.
  • the multiple numbers of holding protrusions entering the rear wall are in radial form or its corners are rounded in hemispherical shape form. Radial forms will maximize manufacturability and eliminate the cracks and the connection difficulties that will occur at the corners.
  • the invention comprises a protrusion array consisting of at least 2 or 4 holding protrusions surrounding the circumference of the housing lateral surface from end to end.
  • the number of said holding protrusions is optimally calculated in the experiments conducted and can be increased.
  • two holding protrusions extending from the end to the end of the circumference of the housing lateral surface of the bearing housing, and a fixing channel between these 2 holding protrusion arrays are formed. This channel allows the material to hold well between the holding protrusions forming the vertical columns in the same direction.
  • the invention is also exposed to a treatment that will increase the surface area of the bearing housing.
  • the rough surface provides convenience for the connection of two materials.
  • the bearing housing is exposed to sandblasting to increase the surface area for good bonding.
  • the sanding process referred in the invention is applied by having to the metal surface crashed with high pressure air and/or in the sandblasting vessel and / or the sandblasting cabin and / or in the turbine automatic sandblasting machine
  • the surface abrasive materials said in the invention used in the sandblasting process of the bearing housing are selected based on metal and / or glass based and / or mineral based and/or the consumable materials referred to in the invention used in the sandblasting process are selected anything from the group consisting of stainless steel balls, glass beads, aluminum oxide balls, steel grid, basalt, silica and quartz, and / or as combinations of these.
  • sheet thickness of the bearing housing is selected between 0.6 mm and 6 mm and especially at least 2 mm and greater than it and less than 4 mm or 4 mm.
  • bearing housing is in the form of stitched pipe structure.
  • a production method for obtaining a bearing housing comprises at least one of the steps of the followings or combinations of them, which are placing the tub fitted in the plastering mold into the drum mold so as to be shaped in a form suitable for the axial diameter of the rear wall channel, in the eccentric press the bearing housing is pressed against the ball bearings as shrinkage fit bearing the drum shaft in the tub body made of plastic in accordance with the plaster metal molding process and is injected into the injection process, as well as performing a sandblasting operation to increase the adhesion to the plastic raw material on the pipe better and more effectively.
  • a washing machine or dryer machine comprising the bearing housing is applied.
  • Figure 1 A side elevational view of a known application of a bear to which an oscillation group shown in the schematic drawing of a front load washing machine is connected.
  • FIG 2 A perspective view of a preferred embodiment of a roller bearing outer bushing that is the invention subject in which a known drum shaft is positioned, which is connected to the tub rear body to bear the drum shaft.
  • Figure 3 A top view of a roller bearing outer bushing that is the invention subject which is mounted in the bearing housing which is mounted on the washing machine tub rear wall.
  • Figure 4 A sectional view from the axis A-A of the Figure 3 of a roller outer bushing that is the invention subject in which roller bearings are mounted and in which the sealing is mounted, is mounted on the tub rear wall hole of the washing machine.
  • Figure 5 A disassembled view of a bearing housing that is the front roller bearing is located at the drum shaft front endpiece and the invention subject which provides more durable holding to tub of bear and also a coaxial shape is formed, with the sealing will be connected at the bearing housing front opening.
  • FIG 1 subject the known solution in the present invention of the bearing assembly (30) is preferably schematically shown as a horizontal axis washing machine (1) drum (13) visible.
  • the washing machine (1) body has a laundry loading opening (11) accessible from the front. The inside of the drum (13) can be accessed from the laundry loading opening (1 1).
  • a plastic tub surrounds the drum (13 ) and is placed in the body.
  • a laundry loading opening (1 1) that allows laundry to be placed in it and removed after it has been installed includes a detergent dispenser (12) into which the cleaning material is placed in the dashboard area where the control group is placed.
  • the washing machine (1) includes a tub having a back wall (170) with a back wall recess (172) and a rear wall rib (174) on it to provide mechanical stability and to decrease the material cost during operation.
  • the present tub (17) comprises a cylindrical drum (13) which is placed in such a way that its axis of rotation is coaxial with the concentrically aligned tub (17) and in which items to be washed are placed, a drum shaft (20) bearing to the tub (17) in the middle of the rear part of the drum and transferring the motion to the drum (13), a tub rear wall channel (176) in the middle portion of the rear wall (170) for connecting this shaft (20) in the tub (17) rear wall, a bearing housing extending into the center of the drum, in the middle of the tub rear wall, lying still with the tub, in which the drum shaft is mounted and a bearing element comprising two rollers concentric to each other and two bushes located in the bearing housing.
  • the pulley (16) is connected to the shaft (20) on the back of the drum(13).
  • This shaft (20) passes through the center of the bearing assembly (30).
  • the drum moves by moving the pulley shaft of the pulley mechanism which the motor which drives the pulleys drives by means of a motor shaft.
  • the pulley mechanism (16) includes a fixing element (18) and a tightening nut (19) at the points of connection of the motor shaft and drum shaft (20) to the pulley (16) to ensure that the said moving system shown in figure 1 operates in a stable and undisturbed manner.
  • FIG. 2 the application of the subject invention is shown in which the drum shaft (20) portion is enlarged in perspective by taking a section.
  • a bearing housing (300) made of metal material surrounding the rollers (40) extends from the back of the the rear wall chanel (1 6).
  • the bearing housing (300) comprises a large housing front part (301) and a housing middle part (302) that gradually narrows therefrom.
  • a housing rear part (303) extends gradually from the housing middle part (302).
  • the bearing housing (300) is aligned at its front and rear parts (301 ,303) with the corresponding ends of the rear wall channel (176).
  • the bearing housing (300) completely surrounds the channel lateral surface (178) of the rear wall (176).
  • Radial outward holding protrusions (305) are formed in the housing middle part (302).
  • the holding protrusions (305) are arranged one after the other in a radial distance.
  • the holding protrusions (305) are arranged in such a way that the rear wall will form columns within the back wall channel (176).
  • the holding protrusions (305) are in the form of an extended dome. Radiuses were provided on the ends.
  • Holding protrusions (305) form one by one in a sequential order protrusion array (306).
  • the holding protrusions (305) in each column forms a circumferential protrusion array (306) with the corresponding holding protrusions (305) in the adjacent column.
  • a fixing channel (307) is formed between the adjacent two protrusion arrays (306).
  • the columns that the connection hole has formed along its extending axis provide the bearing housing (300) to fit securely in the back wall channel (176) in both the forward and reverse directions.
  • the housing front part (301) has a narrower diameter than the housing rear (303).
  • the bearing housing (300) is generally a graduated structure.
  • the rear wall (170) of the tub (17) is shown with the axis A-A. On the rear wall (170) there are radially spaced triangular-shaped spaced apart rear wall ribs (172) and rear wall recesses (174) between them. In the middle center part of the tub (17), circularly shaped bearing housings (300) and rollers (40) are located. The rollers (40) are located coaxially with the bearing housing (300).
  • the tub rear wall (170) is shown as a section taken from axis A-A.
  • the cylindrical drum shaft (20) extends from the drum shaft front endpiece (24) toward the inside of the drum. On the other hand, the drum shaft rear endpiece (26) extends out of the drum.
  • the motor (14) is connected to the pulley (16) to receive drive.
  • the bearing housing (300) is fixed by plastering into the rear wall channel (176) opened longitudinally from the center of the tub (17).
  • the structure of the bearing (300) housing is preferably in the form of a thin wall and in conformity with the rear wall channel (176).
  • Bearing housing (300) middle part (302) is located with radial channels extended to the channel lateral surface (178) of the rear wall (170).
  • the front roller (42) and the rear roller (44) spaced apart from it are mounted in the bearing housing (300).
  • the drum shaft (20) rotates freely in the rotation axis in the bearing housing (300).
  • Bearing housing (300) protrusion arrays (306) pass through the connection hole (176) lateral surface.
  • the plastering bearing housing is fixed to the rear wall channel where it is plastered.
  • the condition prior to being placed inside the bearing housing (300) front part is shown.
  • the sealing (50) is closed on the front roller.
  • This invention is based on the fact that, thanks to the fact that it is lighter instead of cast castings in the known state of the art by means of metal molding technology which is close to the existing part, obtaining by hammering as shrink fit onto the ball bearings on the drum shaft (20) in the plastic tub (17).
  • the material used is preferably a welded pipe or pipe profile and thanks to the plaster metal molding technology, the bearing housing (300) of the form shown in the figure in the eccentric press will occur.
  • the pipe attached to the plaster mold is shaped into the desired figure and placed in the drum (13) mold and will cause to be held firmer in the injection.
  • a sandblasting operation will be made to increase better adhesion to the plastic raw material on the pipe. This will occur according to the tensile tests performed because the part is better gripped by the plastic tub (17). For this reason, the invention will also assist to environmental waste management.
  • the diameter of the pipe used will be the same inside diameter as the cast iron bearing hosing (300) used in the present case, and the thickness of the sheet will be preferably 2-4 mm in thickness which is enough for stress and buckling tests.
  • the holding protrusions which are constructed in the form of a rib on it, are provided to prevent the slippage from the tub during rotation.
  • the sandblasting will be applied to outer surface of the sheet, and thus, the surface area will be aimed to increase.
  • Sandblasting is a method applied to remove metal, dirt, rust and corrosion on the surface due to rust and corrosion of the metal over time and to prolong the life of the metal by painting.
  • the sandblasting is made with a variety of abrasive materials specially manufactured, preferably called grit. Sandblasting reveals the metal itself, along with removing rust and corrosion in visible on the metal surface or micronized sizes. A metal that is yet to be sandblasted is at its the most vulnerable time to rust and corrosion. If a metal is left in the humid atmosphere after the sandblasting process, it is observed that it is exposed to the self-evident oxidation by color change within a few hours. With zinc dyeing, the metal is cut off from the air.
  • the sandblasting process provides a roughness just as it is on the sandpaper.
  • the surface must be roughened with the appropriate abrasives in order for the surface to be complete. It is ensured that the sand is sprayed to the metal surface with high pressure air.
  • Sandblasting of very large parts with sandblasting rubs is also carried out with this machine type. It uses sanding cabins for manual / automatic sanding of medium parts. It is used for sandblasting parts with very intricate / complex geometric structure, for sandblasting of special and sensitive parts. Since the cabins are small and closed systems, they are ideal for companies with space problems.
  • Turbine automatic sandblasting machines are used for the sanding of steel materials, profiles, sheet metal elements which are not usually cut or welded or for the sanding of steel material welded in certain dimensions, for the sanding of small and large number of metal parts
  • Turbine automatic sandblasting machines work with semi-automatic systems.
  • the advantage of this system is that a large piece of material that can enter the machine can be swiftly and economically sandblasted.
  • Various sanding abrasive materials are used in sandblasting machines. They can be metal based, glass and mineral based. It is very important that the abrasives used in the sand are chosen correctly.
  • the abrasive type that can be used in all kinds of sanding machines is different.
  • a variety of sanding materials such as nozzles, nozzle holders, sanding masks, sanding gloves are used in the sanding process.
  • abrasives such as stainless steel ball, glass sphere, aluminum oxide ball, steel grid, basalt, silica, quartz are used.
  • Silica sand which is a very thin variety of silica, is usually used when light sanding is gentle on thin sheets.
  • Basalt which can be called as dusty is used in places where sand can be used recycled in closed environments.
  • Grit is also the sand variety with the least dusting and the best sandblasting power.
  • the material is not sand and it is iron surplus.
  • the surface cleanliness values according to ISO 8501-1 are as follows.
  • the pipe wall thickness preferably is between 0.60 mm and 6.00 mm. The thickness according to the profile dimensions, the minimum and maximum values of the production are taken as basis. EC tested products are made upon request in industrial pipes. Since the standard length of Industrial Pipes is 6 meters and they are cut to the desired length, the production cost to be done in serial conditions will be more cost effective than cast iron forming.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

L'invention concerne un ensemble palier pour une machine à laver dans lequel un arbre de tambour est supporté par au moins deux roulements à rouleaux montés au niveau d'une ouverture avant et d'une ouverture arrière à l'intérieur d'un canal de paroi arrière comprenant un tambour rotatif ayant une ouverture de chargement, une cuve entourant le tambour de façon à permettre l'accès à l'ouverture de chargement, la cuve étant dotée d'une paroi arrière sur laquelle le canal de paroi arrière est formé. Le logement de palier (300) selon l'invention est coaxial avec le canal de paroi arrière et embouti à l'intérieur de celui-ci de manière à couvrir la paroi interne de couverture par contact à la manière d'un embrayage tel qu'uni par un procédé de plâtrage et s'étendant à l'intérieur constituée d'une feuille conique inverse, le diamètre des ouvertures avant et arrière (301, 304) étant agencé pour que les roulements à rouleaux soient ajustés correctement.
PCT/TR2017/050095 2016-03-09 2017-03-09 Logement de palier pour arbre de tambour et son procédé de production WO2017155493A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201603061 2016-03-09
TRTR2016/03061 2016-03-09

Publications (1)

Publication Number Publication Date
WO2017155493A1 true WO2017155493A1 (fr) 2017-09-14

Family

ID=59227802

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2017/050095 WO2017155493A1 (fr) 2016-03-09 2017-03-09 Logement de palier pour arbre de tambour et son procédé de production

Country Status (2)

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TR (1) TR201611098A2 (fr)
WO (1) WO2017155493A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1420497A (en) * 1921-04-20 1922-06-20 Victor W Page Pinion-shaft housing
DE838237C (de) * 1950-10-15 1952-05-05 Star Kugelhalter Ges M B H Deu Nabenfoermige Waelzlageranordnung
DE3512137A1 (de) * 1984-04-13 1985-10-24 N.V. Philips' Gloeilampenfabrieken, Eindhoven Waschlaugenbehaelter
DE102005009721B3 (de) * 2005-03-03 2006-10-12 Ab Skf Lageranordnung
US20110302741A1 (en) * 2009-09-22 2011-12-15 OCS Intellitrak, Inc. Drive Wheel and Bearing
TR201107340A2 (tr) 2011-07-26 2012-01-23 Ortadoğu Rulman Sanayi̇i̇ Ve Ti̇caret A.Ş. Çamaşır makinesi için plastik rulman yuvası.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1420497A (en) * 1921-04-20 1922-06-20 Victor W Page Pinion-shaft housing
DE838237C (de) * 1950-10-15 1952-05-05 Star Kugelhalter Ges M B H Deu Nabenfoermige Waelzlageranordnung
DE3512137A1 (de) * 1984-04-13 1985-10-24 N.V. Philips' Gloeilampenfabrieken, Eindhoven Waschlaugenbehaelter
DE102005009721B3 (de) * 2005-03-03 2006-10-12 Ab Skf Lageranordnung
US20110302741A1 (en) * 2009-09-22 2011-12-15 OCS Intellitrak, Inc. Drive Wheel and Bearing
TR201107340A2 (tr) 2011-07-26 2012-01-23 Ortadoğu Rulman Sanayi̇i̇ Ve Ti̇caret A.Ş. Çamaşır makinesi için plastik rulman yuvası.

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