US20070086907A1 - Gearwheel and method for manufacturing a gearwheel - Google Patents

Gearwheel and method for manufacturing a gearwheel Download PDF

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Publication number
US20070086907A1
US20070086907A1 US11/582,553 US58255306A US2007086907A1 US 20070086907 A1 US20070086907 A1 US 20070086907A1 US 58255306 A US58255306 A US 58255306A US 2007086907 A1 US2007086907 A1 US 2007086907A1
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US
United States
Prior art keywords
insert
gearwheel
gear rim
gear
injection molding
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.)
Abandoned
Application number
US11/582,553
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English (en)
Inventor
Stephan Oberle
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.)
IMS Gear SE and Co KGaA
Original Assignee
Individual
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 Individual filed Critical Individual
Assigned to IMS GEAR GMBH reassignment IMS GEAR GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OBERLE, STEPHAN
Publication of US20070086907A1 publication Critical patent/US20070086907A1/en
Priority to US12/841,196 priority Critical patent/US8794096B2/en
Abandoned legal-status Critical Current

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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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/17—Toothed wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C45/0055—Shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2701—Details not specific to hot or cold runner channels
    • B29C45/2708—Gates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C45/0055—Shaping
    • B29C2045/0058—Shaping removing material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2015/00—Gear wheels or similar articles with grooves or projections, e.g. control knobs
    • B29L2015/003—Gears
    • 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/1987—Rotary bodies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/1987—Rotary bodies
    • Y10T74/19893—Sectional
    • Y10T74/19907—Sound deadening
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/1987—Rotary bodies
    • Y10T74/19893—Sectional
    • Y10T74/19921—Separate rim

Definitions

  • the invention concerns a gearwheel with the generic characteristics of claim 1 and a method for manufacturing a gearwheel with the generic characteristics of claim 11 .
  • Gearwheels of the prior art include, for example from the field of power steering, so-called EPAS (EPAS: Electric Power Assisted Steering) gearwheels that have as a central element a large metal hub that is bonded with an external molded polyamide ring.
  • a large metal hub in this instance is understood to refer to a metal hub whose external diameter is greater than half of the exterior diameter of the gearwheel.
  • Gear teeth are then formed on the gear rim through machining of the molded polyamide ring material. This type of manufacturing process is expensive because a large number of expensive work steps are required.
  • FIG. 9 shows a perspective view and a sectional view of an insert based on the state of the art, in which protrusions form in the circumferential area in the radial direction of the insert, which in the manner of a gear tooth are intended to positively engage with a surrounding material of a gear ring.
  • FIG. 10 shows two other related sectional views that also show a gear ring.
  • FIG. 11 if material is injected from a gate located in an axial direction of the gearwheel being formed, material would flow out around such 34 ° protrusions. However, when the casting material is cooled or hardened, a fissure S between the gear rim 2 formed in this manner and the insert 3 * is created on the side of the 34 ° protrusions facing on the side opposite the molding injection point.
  • the objective of the invention is to provide a gearwheel with a simple structure whose individual components are also well attached. Accordingly, a method for manufacturing a gearwheel shall also be proposed that permits the production of such a gearwheel.
  • a gearwheel is preferred with a gear rim and with an insert whose exterior diameter is greater than half of the external diameter of the gearwheel, with the insert being surrounded by injection molding using a cone mold or surrounded by injection molding during manufacture in accordance with the method.
  • such a connecting part permits counter-gripping structures that provide especially strong engagement to oppose rotational forces and forces parallel to the axis due to a deep penetration into the external part and the insert. This allows counter-gripping structures that penetrate deeper into the external part and into the insert than is possible with conventional individual components, which are inserted into one another based upon their specific manufacture.
  • the gear rim is (preferably) formed by means of the cone mold as a component surrounding the insert. Compared to the injection molding of the prior art, this avoids seams that would be created if plastic were injected from several injection points located in a radial direction around the circumference. The lack of such seams results in increased stability in the rotational direction of such a preferred gearwheel.
  • the gear rim (including an external gear structure) is preferably formed by means of the cone mold. Forming the external gear structure together with the elements of the gear rim obviates the need for a subsequent milling process to create gear teeth from a solid piece, and thus obviates the need for a completely independent manufacturing step.
  • the insert can have indentations facing outwards toward the gear rim into which the gear rim material penetrates.
  • Such indentations are thus external; i.e., they are formed on a radial exterior side of the insert facing the gear rim.
  • At least one part of the indentations is preferably formed as a globoid-like indentation.
  • Such globoid-like indentations in particular permit especially effective inflows of gear rim material, which also prevents formation of fissures between gear rim and insert.
  • the insert preferably has off-center protrusions on the exterior of the gear rim, which penetrate into the material of the gear rim.
  • Such protrusions are external; i.e., they are formed on a radial exterior side of the insert facing the gear rim.
  • Preferably at least one part of the off-center protrusions extends with an oblong extension transverse to a rotational direction. This permits a large positive contact surface for good force transfer between the gear rim and the insert.
  • At least one part of such off-center protrusions is preferably displaced off-center to the gate side of the cone mold.
  • the insert is preferably made from metal and the external part from plastic.
  • the insert can also be surrounded by injection molding with a metallic substance.
  • the gear rim (including an external gear structure) is preferably already formed by means of a cone mold.
  • a gearwheel can also be formed with an external part formed by the gear rim, with an insert, and with one or more connecting elements to create a form-fitting connection between the external part and the insert, whereby the (at minimum one) connecting element is formed from a material that is injected between the external part and the insert.
  • gear tooth structures that prevent pulling in the rotational direction and/or in a direction parallel to the axis, preferably engage with the insert and/or the external part, which creates good rotational stability and/or stability against shifting parallel to the axis for the insert and the external part relative to one another.
  • gear tooth structures can be formed especially advantageously by indentations and by protrusions placed off-center on the external circumference of the insert, which permits a form-fitting connection between the insert and the surrounding material created by means of a cone mold.
  • the gearwheel advantageously consists of a metal hub in the form of a metal insert or insert part, which is surrounded by injection molding with plastic in a molding process (including the gear teeth) to form the gear rim. This eliminates the need for expensive and time-consuming finishing of the gear teeth.
  • Injection molding using a cone mold method creates a high level of stability on the gear rim because the rim has no seam line and thus no pre-established break-off point.
  • injection molding is advantageously accomplished using the piece formed by the cone mold, which is then removed, for example in a machining process.
  • This allows lateral cone mold residue to be removed by machining in a simple work step, in contrast to a multitude of individual steps when individual gears are machine-formed in the circumferential area of the gear rim.
  • cone gate is also advantageous for the cone gate to be designed with very thick walls, particularly with a width on the side of the insert of more than 60%, particularly from approximately 60% up to 150%, of a maximum wall thickness of the gear rim, in order to be able to fill the gear rim without holes or bubbles during injection molding.
  • Indentations and protrusions in the transitional area between the insert and the gear rim wherein the gear rim is understood here to refer also to a ring-shaped section formed between the actual gears and the insert part, permit good torsional synchronization and axial force transfer because of the form-fitting connection with the hub that is created thereby.
  • Such a component including the cone gate, typically also exhibits high axial stresses.
  • the cone gate pulls the gear rim ring axially in the direction of the cone gate.
  • protrusions on the side of the steel-hub shaped insert opposite to the gate cause the gear rim to expand and the insert to detach from the gear rim.
  • Preferably only indentations are provided on the side on the insert opposite to the gate, particularly on its external circumference, so that detachments can be avoided to the extent possible.
  • FIG. 1 Components of three manufacturing steps of a gearwheel in a perspective lateral view
  • FIG. 2 Components of three manufacturing steps of a gearwheel in a lateral sectional view
  • FIG. 3 Various perspective views and sectional views of an exemplary gearwheel according to FIG. 1 and FIG. 2 ;
  • FIG. 4 A perspective view of an insert according to an embodiment with off-center protrusions on the external circumference
  • FIG. 5 A lateral view and a sectional enlargement of the insert according to FIG. 4 in order to visualize such protrusions on the circumferential area;
  • FIG. 6 An enlarged sectional view through the insert according to FIG. 4 and FIG. 5 .
  • FIG. 7 An enlarged partial sectional representation as a stress diagram through a transitional area between an insert with a depression and a gear rim injection molded onto it by means of a cone mold;
  • FIG. 8 An enlarged sectional representation of a stress diagram in the event of an off-center protrusion on the external circumference of the insert
  • FIG. 9 A perspective lateral view and a sectional view of an insert with protrusions on the center of the external circumference according to the state of the art
  • FIG. 10 Another sectional representation and a sectional enlargement in the section of the embodiment according to FIG. 9 with a gear rim injection molded in the circumferential direction according to the state of the art.
  • FIG. 11 A stress diagram of an enlarged section of one such embodiment with an protrusion on the center of the external circumference of the insert according to the state of the art.
  • an exemplary gearwheel 1 is manufactured in several manufacturing steps.
  • an insert 3 that forms the actual hub is created.
  • the insert 3 is preferably a metal (particularly steel) insert that is used to form, for example, a steel hub that is itself of the prior art.
  • this insert 3 is surrounded by means of injection molding to form a gear rim 2 , with a cone mold process being used for the injection molding. Accordingly, the center drawing shows the insert completely surrounded by the injection molded plastic in the line of sight. This insert already exhibits a gear structure 21 in the circumferential direction. A gear structure 21 of this type can be cast at the same time.
  • the insert 3 is surrounded by injection molding from the axial direction of an axis X that preferably forms the rotational axis of the gearwheel.
  • the view shows the side from which the insert 3 is surrounded by injection molding, with the center drawing showing an intermediate manufacturing step in which a cone gate 46 is still in place on the side of the insert. A sprue 45 is visible in the center or axially.
  • the cone gate 46 covers a side wall of the insert 3 extending in the axial direction with a thickness that permits bubble- free injection molding even of areas that are remote from the gate.
  • the thickness of the casting material in the axial direction lateral to the insert 3 is preferably more than 60%, particularly approximately 60% up to 150% of the maximum thickness of the axial extension of the gear rim 2 that is to be formed. However, depending in particular upon the fluid behavior of the material used during the cone molding process, a smaller or greater thickness may be required to achieve an optimal result.
  • a cone mold also particularly permits the formation of a groove 23 or similarly indented structures in an axially extending side wall of the gear rim 2 formed by the injection molding.
  • the cone gate 46 below is then separated from the side of the insert 3 , for example using a machining process. This ultimately produces the gearwheel shown on the right side of FIG. 1 , which shows the central insert 3 with a central shaft seat, wherein the insert 3 has already been surrounded by injection molding in the circumferential direction to create the finished gear rim 2 , including a gear structure 2 and, if necessary, groove-shaped structures such as the groove 23 .
  • FIG. 2 shows in a sectional view three manufacturing steps (arranged vertically) for manufacturing such a gearwheel 1 .
  • the top drawing shows the insert 3 on a supporting surface 50 or the lower part of a tool 5 .
  • An insert is placed into the shaft seat 31 of the insert 3 , which prevents injection molding material from flowing in during the injection molding process.
  • the upper part of a tool 51 is placed on the supporting surface 50 at a distance above and in the circumferential direction outside of the insert 3 . This therefore creates an injection molding area 54 in which a cone gate 46 is formed during the injection molding of the gear rim 2 as well as in the axial direction lateral to a side wall 30 of the insert 3 .
  • the upper part of tool 51 has an injection channel 52 for injecting the injection molding material, wherein the injection channel 52 preferably runs in the center and in an axial direction to the axis X of the gearwheel to be formed.
  • the upper part of tool 51 and the supporting surface 50 preferably already have tool structures 55 that are shaped appropriately so as to form, for example, the groove 23 and a gear structure.
  • an element that is injection molded with such a configuration consists of the insert 3 , which is surrounded by injection molding by the gear rim 2 in the circumferential direction and by the cone gate 46 in the axial and lateral direction.
  • the insert 3 has gear tooth structures on its surface in a circumferential direction that serve to form a form-fitting connection between the external circumference of the insert 3 and the internal circumference of the gear rim 2 .
  • Shown as geared structures are two different types of indentations 32 and 33 , which are formed radially on the external circumferential wall of the insert 3 , and which are filled with the injection molding material during the injection molding process.
  • An initial indentation 32 is formed, for example, as a groove running in a circumferential or rotational direction in order to form a stabilizing or retaining gear tooth structure in the axial direction of the axis X.
  • This initial indentation 32 is formed off-center on the external circumference of the insert 3 and faces the gate side off-center on the external circumference of the insert 3 .
  • a large number of secondary indentations 33 are formed parallel to the axis X and are preferably globoid in shape. After the injection molding material flows in and hardens, this large number of secondary indentations 33 causes a form-fitting connection to the gear rim 2 , which permits a good transfer of force in the rotational direction.
  • the finished gearwheel 1 After separating along a separation line C, for example by means of a machining process, the finished gearwheel 1 , which is shown in FIG. 2 below, is created.
  • FIG. 3 shows other views and details of the gearwheel 1 shown in FIG. 2 .
  • FIGS. 4 through 6 show an embodiment that has been modified compared to the previous figures.
  • off-center protrusions 34 are formed on the circumferential surfaces of the insert 3 * that are external in a radial direction, which after molding engage with the hardened material of the gear rim.
  • these protrusions 34 are arranged off-center towards a gate side for the gear rim in order to prevent the molding material from detaching when it hardens during the setting and cooling process.
  • protrusions 34 can run in a circumferential direction as shown so as to create a form-fitting connection between the insert 3 * and the gear rim in the axial direction of the axis X.
  • the insert 3 * preferably again has axis-parallel indentations 33 * in a circumferential section adjacent to the protrusion 34 that are oblong, for example, and not globoid-shaped in the shown embodiment.
  • the radii of these indentations 33 * are selected so that the injection molding material can flow into them during the injection molding process and detachment during the subsequent hardening process can be prevented completely, or at least to the greatest extent possible.
  • FIG. 7 shows a stress diagram for a circumferential section of the transitional area between the insert 3 and the gear rim 2 after injection molding using the cone mold and before a lateral cone gate is removed.
  • FIG. 7 clearly shows an advantageous stress pattern that prevents the hardened plastic material of the gear rim from detaching in a section far from the injection point.
  • the hardening causes the material, preferably plastic, to pull back only in the direction of the gate or the gate side, as is clearly shown, although this does not result in any detachment, or any significant detachment, from the circumferential areas of the insert 3 .
  • FIG. 8 shows a stress diagram of a corresponding section of the transitional area between the insert 3 * and the gear rim 2 of the embodiment according to FIGS. 4 through 6 . It is also clear that shrinking occurs during the hardening or cooling of the plastic mass of the gear rim 2 , which leads to a displacement on the end facing away from the gate. Nevertheless, fissures do not form, or form only to a harmless extent, when the plastic that constitutes the molding material detaches from the adjacent surfaces of the insert 3 *.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Gears, Cams (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Valve Device For Special Equipments (AREA)
  • Lock And Its Accessories (AREA)
US11/582,553 2005-10-19 2006-10-18 Gearwheel and method for manufacturing a gearwheel Abandoned US20070086907A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/841,196 US8794096B2 (en) 2005-10-19 2010-07-22 Gearwheel and method for manufacturing a gearwheel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005050438.8 2005-10-19
DE102005050438 2005-10-19

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/841,196 Division US8794096B2 (en) 2005-10-19 2010-07-22 Gearwheel and method for manufacturing a gearwheel

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US20070086907A1 true US20070086907A1 (en) 2007-04-19

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US11/582,553 Abandoned US20070086907A1 (en) 2005-10-19 2006-10-18 Gearwheel and method for manufacturing a gearwheel
US12/841,196 Expired - Fee Related US8794096B2 (en) 2005-10-19 2010-07-22 Gearwheel and method for manufacturing a gearwheel

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US12/841,196 Expired - Fee Related US8794096B2 (en) 2005-10-19 2010-07-22 Gearwheel and method for manufacturing a gearwheel

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US (2) US20070086907A1 (de)
EP (1) EP1780445B1 (de)
CN (1) CN101016943B (de)
AT (1) ATE451575T1 (de)
DE (1) DE502006005572D1 (de)
ES (1) ES2334455T3 (de)

Cited By (5)

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US20120111144A1 (en) * 2010-03-24 2012-05-10 Jtekt Corporation Gear
EP2658088A2 (de) * 2012-04-25 2013-10-30 Fujikoki Corporation Stator eines Antriebsmotors für ein elektrisch betriebenes Ventil
CN106738622A (zh) * 2017-01-16 2017-05-31 三明索富泵业有限公司 一种高精度齿轮的制造方法
EP3459706A1 (de) * 2017-09-25 2019-03-27 IMS Gear SE & Co. KGaA Stirnrad zur verwendung in einem stirnradgetriebe, zahnradpaarung für ein stirnradgetriebe, stirnradgetriebe mit einer derartigen zahnradpaarung sowie verfahren zum herstellen eines stirnrads und seine verwendung in stirnradgetrieben
DE102020202922A1 (de) 2020-03-06 2021-09-09 Thyssenkrupp Ag Verfahren zur Herstellung eines Getrieberads für eine elektromechanische Hilfskraftlenkung

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EP2230071A1 (de) * 2009-03-17 2010-09-22 Quadrant Epp Ag Verbundgetrieberohling und Verfahren zu dessen Herstellung
DE102009027441A1 (de) * 2009-07-03 2011-01-05 Zf Lenksysteme Gmbh Schraubrad für ein Getriebe
DE102010018079A1 (de) * 2010-04-22 2011-10-27 Ims Gear Gmbh Welle mit einem stirnseitig angegossenen Zahnrad und Verfahren zum Herstellen einer solchen Welle
DE102011050261A1 (de) * 2011-05-11 2012-11-15 Robert Bosch, spol. sr. o. Spritzgussvorrichtung für eine globoidische verzahnung und verfahren zur herstellung einer globoidischen verzahnung
DE102011051386A1 (de) * 2011-06-28 2013-01-03 Zf Lenksysteme Gmbh Verfahren zur Herstellung eines Zahnrades
JP5429406B2 (ja) * 2011-12-07 2014-02-26 日本精工株式会社 ウォームホイール及び電動式パワーステアリング装置
KR101346347B1 (ko) * 2012-02-13 2013-12-31 남양공업주식회사 Ｍｄｐｓ 웜휠 및 제조방법
DE102012102778A1 (de) * 2012-03-30 2013-10-02 Zf Lenksysteme Gmbh Verfahren zum herstellen eines schraubrads
JP6254853B2 (ja) * 2014-01-22 2017-12-27 株式会社エンプラス ２色成形方法及び２色成形体
FR3020305B1 (fr) * 2014-04-24 2017-01-06 Jtekt Europe Sas Procede de fabrication d'une roue dentee allegee par surmoulage double
RU2567689C1 (ru) * 2014-07-14 2015-11-10 Федеральное государственное унитарное предприятие "Центральный институт авиационного моторостроения имени П.И. Баранова" Зубчатое колесо
DE102014115804B4 (de) 2014-10-30 2017-03-02 Thyssenkrupp Ag Schneckenrad für eine elektromechanische Hilfskraftlenkung
CN105172046A (zh) * 2015-09-14 2015-12-23 贾玉平 带嵌件的注塑模具
DE102017131173A1 (de) 2017-12-22 2019-06-27 Thyssenkrupp Ag Schneckenrad für ein Schneckenradgetriebe einer Kraftfahrzeuglenkung mit einem zwischen einer Nabe und einem Zahnkranz eingespritzten Trägerring
CN109854709B (zh) * 2018-12-19 2024-04-09 博世华域转向系统有限公司 一种eps齿轮
EP3800375B1 (de) * 2019-10-01 2023-02-15 IMS Gear SE & Co. KGaA Zahnkranzträgerteil für ein zwei- oder mehrkomponenten-zahnrad sowie zwei- oder mehrkomponenten-zahnrad mit einem derartigen zahnkranzträgerteil
EP4116606A1 (de) * 2021-07-07 2023-01-11 Hilti Aktiengesellschaft Zahnrad mit geschwungener aussenkontur, sowie getriebe und werkzeugmaschine mit einem solchen zahnrad

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EP3459706A1 (de) * 2017-09-25 2019-03-27 IMS Gear SE & Co. KGaA Stirnrad zur verwendung in einem stirnradgetriebe, zahnradpaarung für ein stirnradgetriebe, stirnradgetriebe mit einer derartigen zahnradpaarung sowie verfahren zum herstellen eines stirnrads und seine verwendung in stirnradgetrieben
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EP1780445B1 (de) 2009-12-09
CN101016943B (zh) 2011-05-04
ATE451575T1 (de) 2009-12-15
US20110011195A1 (en) 2011-01-20
EP1780445A1 (de) 2007-05-02
US8794096B2 (en) 2014-08-05
ES2334455T3 (es) 2010-03-10
DE502006005572D1 (de) 2010-01-21

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