WO2017155491A1 - Roulement à rouleaux pour un lave-linge comprenant un tambour rotatif à charge frontale et procédé de fabrication dudit roulement - Google Patents

Roulement à rouleaux pour un lave-linge comprenant un tambour rotatif à charge frontale et procédé de fabrication dudit roulement Download PDF

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Publication number
WO2017155491A1
WO2017155491A1 PCT/TR2017/050090 TR2017050090W WO2017155491A1 WO 2017155491 A1 WO2017155491 A1 WO 2017155491A1 TR 2017050090 W TR2017050090 W TR 2017050090W WO 2017155491 A1 WO2017155491 A1 WO 2017155491A1
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WO
WIPO (PCT)
Prior art keywords
roller
washing machine
drum
tub
outer bushing
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.)
Ceased
Application number
PCT/TR2017/050090
Other languages
English (en)
Inventor
Mucahit AVCI
Ismail TURKOGLU
Murat TAYSI
Turgay Serbet
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.)
Al-Kor Makina Kalip San Ve Tic A S
Lang Yuzer Otomotiv Yan San Ve Tic A S
Original Assignee
Al-Kor Makina Kalip San Ve Tic A S
Lang Yuzer Otomotiv Yan 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 Al-Kor Makina Kalip San Ve Tic A S, Lang Yuzer Otomotiv Yan San Ve Tic A S filed Critical Al-Kor Makina Kalip San Ve Tic A S
Publication of WO2017155491A1 publication Critical patent/WO2017155491A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F16C35/067—Fixing them in a housing
    • 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
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • 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
    • 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
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/56—Systems consisting of a plurality of bearings with rolling friction in which the rolling bodies of one bearing differ in diameter from those of another
    • 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
    • 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
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/586—Details of specific parts of races outside the space between the races, e.g. end faces or bore of inner ring

Definitions

  • the invention relates to bearing roller of a drum that 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 bearing part which consists of bearing elements in the bearing area where a shaft is connected to a tub in a drum for the drum movement, the drum shaft is attached to the drum rotatably in one end, and the other ends being free to rotate the attached tub in the machine housing and connects the drum to the tub in front-loading washing machines where it is mounted.
  • a bearing recess can be disposed on the rear wall of the tub to support the shaft rotatably.
  • the bearing recess is made of aluminum alloy and is attached to the rear wall of the tub while the tub is being molded. Rollers are disposed between the bearing recess and shaft to facilitate rotation of the shaft.
  • First and second rollers mounted on the shaft at a distance from each other are disposed on the tub combined part and the motor combined part.
  • the bearing recess hub which rollers settled are formed integrally with the bearing recess center.
  • roller bear produced from casting metarial is heavy, creates a cost due to frequently use of the material.
  • pinching the shaft with a product that takes up an extra space instead of strengthening the structure of the shaft brings both extra cost and design difficulty.
  • the bushes used in the drum shaft bearings of washing machines are made of brass or cast and are not economical and lightweight. Cost improvements made on the bearing part and the shaft are generally geometric changes such as diameter changes on the shaft metal part, height measurements or profile changes on the outer surface.
  • the tub material is made of plastic metal, the drum shaft and the elements in the bear are made of metal.
  • the work of the washing machines causes different fatigue of the two different materials, and warpings distortions occurs over time. Accordingly, there is a need in the art for a new bearing element or bearing assembly that bearing drum-moving shaft in the opening on the tub to reduce economic and the effect of fatigue in the current situation. Particularly, it is expected that the new embodiment will prevent the erosion, fatigue, and strength reductions that may occur over time. At the same time it is important to reduce the cost of production.
  • the purpose of the invention is to provide a movable rotating member in a plastic hole or a roller which is capable of bearing the shaft in a robust and efficient manner and which does not cause deformation of the hole in which the shaft bearing is located as a result of movement of said shaft.
  • a roller embodiment that provides an economical solution to the problems of mechanical damage and physical change that occur in a shaft bearing connected to a rotary drum.
  • bearing part of drum shaft of washing machine as washer it is aimed to be more robust due to the fact that it is the same basic material as the tub body to be combined with plastic coated, to save bearing parts and to obtain a more economical, cost saving product which does not require extra parts such as the housing part which is put on the roller.
  • a roller for bearing a rotor or a rotary shaft comprising an inner and an outer bushing and a plurality of rolling elements that provide movement to inner bushing and a plastic part having a bearing opening wherein at least one outer bushing being mounted to the plastic part is comprising a holding channel filled with the material of plastic part in the form of a radial recess along the circumference of the outer lateral surface of at least one roller, which is adjusted in accordance with the geometry and length of the opening on the plastic part.
  • the roller of the invention is particularly preferably applied on washing machines with a front loading rotating drum, a plastic tub surrounding the drum with the loading door open, a shaft that provides motion to the hole on the tub rear wall and to the drum in the contact hole. It includes a front roller and a rear roller which are positioned in the hole front orifice and in the hole rear orifice to be connected directly to the tub, are adjusted to the geometry and diameter of the rear wall hole. At this point the connection is made between the inlet and outlet of the hole bear, so that effective bonding between the shaft and the plastic tub is provided.
  • the invention includes an outer bushing having a roughened lateral surface along its radial periphery and / or having recessed protrusions formed on the lateral surface, preferably formed with bridges separating a plurality of cavities and cavities from each other.
  • the invention comprises at least one holding bridge that divide the holding channel in such a way that it continues to be cut at least one place at certain predetermined distances along the circumference of the holding channel and at least two holding recesses formed holding bridge. At this point the connection is made between the inlet and outlet of the hole bear, so that effective assembling between the shaft and the plastic tub is provided.
  • the invention comprises at least one fin band, which is formed by a orthagonal fin extending radially outwardly circumference the lateral surface of the the ring-form roller outer bushing so as to form a gap at a predetermined distance between the ends.
  • Said distance is preferably a distance of 2 mm, 3 mm or 4 mm between the orthagonal fins, and in different embodiments this distance has a value of 1 to 7 mm, in particular 2 to 5 mm.
  • the invention includes fin band which consist of the bushing has been inclined at a certain angle and / or preferably to an horizontal acute angle smaller than 90 ° and / or horizontal fins.
  • angles are formed which are to cover the moment of inertia.
  • the invention comprises at least two fin bands with a numerous of orthagonal fins formed to extend radially outwardly on the lateral surface so as to complement the circumference of the outer bushing, and at least one holding channel at the distance between the two bands.
  • the material of the plastic part fills the recesses of the roller is provided an active connection.
  • the distance between said orthagonal fin band is preferably set to a distance of 2 mm, 3 mm or 4 mm between them and in different embodiments may be in the range of 1 to 7 mm, in particular 2 to 5 mm.
  • the invention includes outer bushings having an axial diameter set in accordance with the geometry and length of the tub rear wall hole which are outer part of a front and a rear roller.
  • the geometry of said hole is a conical structure which narrows towards the front of the tub and expands towards the rear for a selected application as a washing machine.
  • the invention in bearing mechanisms having at least two rollers comprises at least one channel and/or at least one recess and/or at least one bridge and/or at least one orthagonal fin and/or at least one horizontal fin and/or at least one fin band as recessed protrusions formed in different geometries on the lateral surface of the front and rear roller outer bushing.
  • said bearing comprises an outer bushing that structured in polygonal form.
  • the invention comprises at least one cover that is a front and / or a rear roller component also to prevent the escape of grease and the entrance of outside foreign matter to the roller inside so as to cover the drum shaft and rolling elements that support the motion to increase the life time of a roller bear.
  • a method of production for obtaining a bearing member comprising at least one of the steps of forming the fin and recessed and / or channeled structures in different geometries on different radial outer lateral surfaces of the roller outer bushing, roughening the surface of the outer bushing, mounting drum tub that produced directly from the plastic by injection molding technology in drum tub that produced directly from the plastic by molding process on the roller with rolling element on the shaft or combinations thereof.
  • the invention preferably is applied in a washer that is a washing machine or laundry-drying machine which comprises bearing part with a recessed corrugated outer bushing a front and a rear roller.
  • 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.
  • Figure 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 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 the sealing is mounted, is mounted on the tub rear wall hole of the washing machine.
  • Figure 5 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 6 A perspective view of a alternative 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.
  • FIG. 7 A disassembled view of a alternative embodiment of a roller outer bushing that is the invention subject is located at the drum shaft front endpiece and which provides more durable holding to tub of bear and also a coaxial shape is formed, with the sealing will be connected at the front orifice of this bushing.
  • the invention subject roller (40) generally comprises an inner and an outer bushing (410, 420) and multiple number of rolling elements (430) which provide movement to inner bushing (410).
  • rollers (40) have been developed for bearing a rotating rotor or shaft (20) in which it is disposed in a piece made of plastic with a bearing gap.
  • the present invention there are preferably a plurality or at least one holding channel (421) filled by the material of the plastic part, in the form of a radial recess along the circumference of the outer lateral surface of at least one roller (40) which is adjusted in accordance with the geometry and length of the opening on the plastic part which the outer bushing (420) mounted to the plastic part provide bearing.
  • the said plastic part is a tub(17) of a washer and rear wall(176) of tub which washer is a front loading washing machine (1) or a washing machine with a laundry-drying machine.
  • roller(40) In all kinds of industrial electric motors fan and pump, machine tools shafts, automobile axle, axle, gear box, belt tensioner system, alternator and steering systems, water pumps and doors, washing machines and vacuum cleaners, agricultural machinery, heavy duty machines, wind turbines, in short in all kinds of rotating mechanism the roller(40) is used.
  • the roller (40) is a member of every rotating mechanism.
  • the basic task of the roller (40) is to minimize friction between the two components (410, 420), which have a relative rotational motion between them and to provide smooth load transfer.
  • the assembly of the roller (40) is provided with different plastic parts.
  • the invention subject roller (40) comprises a front and a rear roller (42, 44) which are disposed one in the front orifice (32) and one in the rear orifice (34) of the groove (176), are adjusted in accordance with the geometry and diameter of the rear wall groove (176), for washing machines (1) having a front load rotary drum (13), a plastic tub (17) surrounding the drum (13) such that the loading door (11) is open, a connecting groove (176) on the rear wall (170) of the tub and a shaft (20) providing movement of the drum (13) in the connecting groove (176).
  • FIG. 1 schematically shows a washing machine (1), preferably a horizontal axis, in which the bearing mechanism of the invention is located, a drum (13) being visible.
  • a washing machine (1) and the part of the drum (13) which is a moving part thereof and the tub (17) in the body so that the drum (13) can rotate in a stable manner.
  • the washing machine (1) body has a laundry loading door accessible from the front.
  • the interior of the drum (13) is accessible from the laundry loading door (1 1).
  • a plastic tub (17) is disposed in the body in a wrapping around the drum (13).
  • Figure 1 shows the mechanism of the pulley (16) for ensuring that the said moving system operates stably and undisturbed, the fixing member (18) and the clamp nut (19) at the points where the motor shaft (15) and the drum shaft (20) are connected to the pulley (16).
  • a laundry loading door (1 1) which allows the laundry to be disposed into and to be removed after laundry has been disposed, comprises a detergent dispenser (12) in which the cleaning materials are disposed in the panel area in which the parts containing the control group are disposed.
  • the washing machine (1) comprises a tub (17) having a tub rear wall (170) on which the tub rear wall groove (172) and the tub rear wall rib (174) are presented in order to provide mechanical stabile strength during operation and material cost reduction.
  • the washing machine (1) preferably comprises a front loading door (1 1), a detergent dispenser (12) for receiving the cleaning material used for washing laundry and a motor (14) for moving the shaft (20) rotating the drum (13) at the rear of the drum (17), a pulley (16) and motor shaft (15) which form a link between the motor (14) and the drum shaft (20).
  • FIG 1 the bearing mechanism (30) with the components of the roller (40) are shown enlarged in the marked section (X), by circling the view in the present embodiment.
  • the standard roller (40) embodiments that provides movement of the shaft (20), the bearing mechanism (30) made of cast iron in existing applications.
  • an inner bushing (410), an outer bushing (420), and rolling elements (430) that provide movement to the inner bushing (410) between and a holding channel (421) which preferably surrounds the entire circumference of the outer bushing (420) in order to increase the permanence of the lubricant which can be made between the components that provide strength connection to the tub(17) which on the outer lateral surface of the roller (42, 44), which is formed from the cover (440).
  • the width of said channel (421) is preferably between 1 mm and 4 mm. It will also have the width of the channel (421) which varies with the size of the hole (176).
  • the number of holding channels (421) referred to in the various embodiments may preferably be more than one.
  • the bearing housing (36) of the bearing mechanism (30) is eliminated to save material. As is well known, assembly with fewer parts provides reduced complexity in the coaxialization.
  • the recessed and protruded lateral surface of the components of the roller (40) of the bearing mechanism (30) is roughened to provide strength bonding to the tub (17), even at high rotational speeds of the shaft (20).
  • rollers (42, 44) on the front and rear other orifice (32, 34) of the bearing mechanism (30) may have an outer bushing (420) comprising recesses and protrusions that are disposed differently thereon.
  • the Figure 2 shows that at least one holding bridge (424) connecting the two knurles around the channel (421) which cuts off the channel (421) having the front roller (42) at least a predetermined distance from the predetermined positions with forming a holding channel (421), which is continuous along its circumference, instead of a holding channel (421) running on the circumference of the outer bushing (420) of the rear roller (44).
  • Said bridge (424) forms at least one holding recess (422) on the circumference of the outer bushing (420).
  • the holding recess (422) and the holding bridge (424) are formed in multiple numbers.
  • the outer bushing (420) may be identical to the front and rear roller (42,44). In a different embodiment, as shown in FIG. 2, the outer bushing (420) has different recess forms.
  • FIG 2 shows a perspective representation of a preferred embodiment of the invention subject inner and outer bushing ( 410, 420) which form the invention subject front and rear rollers (42, 44), in which a known drum shaft (20) is disposed, that are attached with tub rear wall (170) to bear to the drum shaft (20). There are also rolling elements (430) for moving the drum shaft (20), which is another component of the roller (40). Sealing (50) is disposed between the front roller (42) and the drum as the environment is moist or wet due to the function of the working environment.
  • an inner bushing (410) preferably cylindrical shape and an outer bushing (420) with recesses and protrusions on it, composed bearing mechanism (30) front orifice (32) and rear orifice (34) at least two.
  • Figure 3 is based on mounting into the plastic tub (17) preferably by injection as seen in figure 3, with plastic molding technology to a groove (176) which is preferably located at the center of the tub (17) rear wall (170) of the bearing mechanism (30).
  • the recessed corrugated and roughed lateral surface of the outer bushing (420) has a hardness that is not to be exposed to adverse physical effects such as buckling, crushing, slipping off as a result of the rotation of the drum (13) and therefore of the load.
  • the outer bushing (420) of said roller (40) is preferably turned into a corrugated shape after a series of forming operations.
  • said forward hole (176) has a form expanding towards the front orifice (32) of the bearing hole.
  • Bearing hole rear orifice (34) is smaller than each other.
  • the front roller (42) has a larger radius than the rear roller (44) and preferably has an outer radius ranging from 50 mm to 60 mm.
  • the preferred distance with respect to the different shaft (20) sizes and speeds the motor (14) will provide can be increased or decreased.
  • a gap is formed in the tub rear wall (170) with the arbour mold forming the tub hole, through which the shaft (20) passes.
  • an outer bushing (420) of the roller (42, 44) is embedded in the tub (17) to form an integral shape.
  • roller (40) components inner bushing (420) that do not include the cover (440) , the outer bushing (420) which with the holding channel (421) on thereof preferably for secure engagement with the plastic material and the rolling elements (430) disposed therebetween are shown in the figure.
  • said recesses, knurles and rough which are on the outer bushing (420) have at least one orthagonal corrugated fin (426) to supply the inertia torque caused by rotational movement of the drum (13) in such a way as to prevent the drum shaft (20) from being displaced.
  • the distance between them varies from 1 to 7 mm, particularly preferably from 2 to 5 mm.
  • it is preferably arranged to surround the entire lateral face of the outer bushing (420).
  • the numerous of fins (426) having a predetermined distance therearound along the circumference of the lateral surface of the outer bushing (420) form a fin band (428).
  • the outer bushing (420) of the roller (40) has two fin bands (428). Between the knurles formed by said fins (426), a holding channel 421 is formed as a recess on the lateral surface of the outer bushing 420, which can be entered by the tub (17) plastic during assembly.
  • said number of channels (421) may be more than one.
  • the channel (421) is preferably between 2 mm and 5 mm. mMost preferably, there is a 3 mm wide recess between said fin bands (428).
  • the exemplary widths of the rollers (40) vary in diameter depending on the diameter of the shaft (20).
  • the fins (426) formed on the lateral surface of the outer bushing (420) of the roller (40) are formed as oblique corrugated fin (427), preferably in such a way as to form a predetermined angle with the radial axis particularly a narrow angle.
  • said oblique corrugated fins (427) preferably form a fin band (428) which surrounds the lateral surface of the entire outer bushing (420).
  • the said obliquity is preferably formed in such a way that the moment of inertia of the drum shaft (20) can be met.
  • the corrugated fins (421) formed in the opposite direction of the bending direction.
  • the Oblique corrugated fins (427) are preferably formed in a direction that can meet the moment of inertia of the drum shaft (20). This opposite direction detection is determined by trial tests.
  • FIG. 7 shows the holding bridge (424) which formed on the holding channel (421) of the invention subject embodiment forming the holding recesses (422) on the outer bushing (420).
  • the plastics material of the tub (17) is filled to recesses (422) on the roller to provide effective holding.
  • the numerous of recesses (422) and the holding bridges (424) separating the recesses (422) are formed along the circumference of the outer bushing (420).
  • Figure 7 shows the invention subject inner bushing (410) of the roller (40) and the outer bushing (420) with the numerous of recesses (422) and the holding bridges (424) on it as an exploded picture.
  • the sealing (50) in the bearing front orifice (32) near the drum (13) is seen in the exploded view.
  • cover (440) intended for roller lubricant chemicals and rolling elements (430).
  • the present invention will be made by using the outer bushing (420) of the rollers with rolling element (430), which are used as a tight fit on the drum shaft (20), with the surfaces being of different geometries by a series of operations thus with directly mounting the drum (13) on the rollers (40) of this rolling element (430) without using any other roller (40) or any other complementary element. For this reason, design and modification are made to meet the geometry in the tub (17) molding.
  • roller (40) The basic task of the roller (40) is to minimize friction between the tub (17) and the shaft (20), which are the two components of relative rotational movement between them, and to provide smooth load transfer.
  • a member of the rotating drum shaft (20) mechanism associated with the drum (40) is also bearing (40).
  • a perfect roller (40) provides an excellent mechanism.
  • the roller mechanism (40) that is the invention subject, which is preferably applied to the bearing part of the drum shaft (20) of the washers such as a washing machine (1), a washing machine with dryer can also be used in alternative embodiments of the invention in rotary mechanism bearings in different sectors to provide cost reduction.
  • cages that can be called inner and outer used as the roller components, preferably rolling elements (430) selected as balls not to disperse, hold the inner and outer bushings (410, 420) rolling elements (430) circumferentially equally spaced and in order to prevent friction with each other during rotation.
  • the rolling elements (430) provide the power transmission while the inner and outer bushings (410, 420) do not act.
  • said inner and outer bushings (410, 420) may be made from different materials.
  • roller gaps are taken into account both radially and axially.
  • the bushings (410, 420) and the rolling elements (430) are made of a low-alloy, high-carbon, special, DIN 1.3505-100Cr6 roller steel which can be hardened along the section.
  • Other than 100Cr6, 100Cr6 alloys, carburisation steels, ceramics and some other special steels can also be used in the production of the bushing (410, 420) and rolling element (430). Cages that keep the rolling elements (430) in a circumferentially equally spaced relationship and prevent friction against each other during rotation will be used.
  • the covers (440) which used in the invention prevent the grease in the roller from coming out and foreign matter to enter the roller from the outside. They can be produced as metal sheet or rubber cover (440).
  • said rolling path elements (430) in rollers (40) provide force transmission and play a key role in the classification of the rollers (40).
  • the rolling elements (430) are preferably spherical in shape, in the bearings they are used the frictional forces are lower than the other rollers (40) and preferably used in rotating rolling bearing mechanism parts (30) having very high rotational speeds in one embodiment of the invention.
  • rolling elements (430) made of ceramic material are used as well as rolling elements (430) made of steel material.
  • the rolling elements (430) contact is point with the roller (40).
  • conical, cylindrical, spherical and needle-type rollers that carrying load with linear contact (not shown) can be used. There is bump on their surface to minimize the load distribution at the contact tips. Due to the fact that it has a linear contact, they carry more load than the roller with the same size rolling element (430).

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  • 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)

Abstract

L'invention concerne un roulement (40) destiné à supporter un rotor ou un arbre rotatif (20), comprenant une bague interne et une bague externe (410, 420) et une pluralité d'éléments de roulement qui fournissent un mouvement à la bague interne (410) et une partie en plastique présentant une ouverture de roulement. Ledit roulement comprend en outre au moins une bague externe (420) montée sur la partie en plastique et comprenant un canal de retenue (421) rempli de la matière de la partie en plastique sous la forme d'un évidement radial le long de la circonférence de la surface latérale extérieure d'au moins un roulement, qui est ajusté en fonction de la géométrie et de la longueur de l'ouverture sur la partie en plastique.
PCT/TR2017/050090 2016-03-09 2017-03-08 Roulement à rouleaux pour un lave-linge comprenant un tambour rotatif à charge frontale et procédé de fabrication dudit roulement Ceased WO2017155491A1 (fr)

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WO2020064258A1 (fr) * 2018-09-28 2020-04-02 Arcelik Anonim Sirketi Procédé de fixation d'un logement de palier métallique sur une structure en plastique

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JP2001003916A (ja) * 1999-06-18 2001-01-09 Teimuzu Factry:Kk 固定金具
EP1767684A1 (fr) * 2005-09-27 2007-03-28 Aktiebolaget SKF Support pour un logement du palier à rouleaux pour un lave-linge
EP1798016A1 (fr) * 2005-12-14 2007-06-20 Aktiebolaget SKF Support de palier pour éléments tournants
JP2007315537A (ja) * 2006-05-26 2007-12-06 Hitachi Powdered Metals Co Ltd 軸受複合歯車
JP2008249131A (ja) * 2007-03-07 2008-10-16 Jtekt Corp 樹脂巻き部品
EP2372008A1 (fr) * 2010-03-09 2011-10-05 Aktiebolaget SKF Tuyau co-moulable avec des cuves de machine à laver
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JP2001003916A (ja) * 1999-06-18 2001-01-09 Teimuzu Factry:Kk 固定金具
EP1767684A1 (fr) * 2005-09-27 2007-03-28 Aktiebolaget SKF Support pour un logement du palier à rouleaux pour un lave-linge
EP1798016A1 (fr) * 2005-12-14 2007-06-20 Aktiebolaget SKF Support de palier pour éléments tournants
JP2007315537A (ja) * 2006-05-26 2007-12-06 Hitachi Powdered Metals Co Ltd 軸受複合歯車
JP2008249131A (ja) * 2007-03-07 2008-10-16 Jtekt Corp 樹脂巻き部品
EP2372008A1 (fr) * 2010-03-09 2011-10-05 Aktiebolaget SKF Tuyau co-moulable avec des cuves de machine à laver
US20140076006A1 (en) 2012-09-14 2014-03-20 Samsung Electronics Co., Ltd. Drum washing machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020064258A1 (fr) * 2018-09-28 2020-04-02 Arcelik Anonim Sirketi Procédé de fixation d'un logement de palier métallique sur une structure en plastique

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