GB2169831A - Method of axially securing planet wheel pins in planet wheel carriers - Google Patents

Method of axially securing planet wheel pins in planet wheel carriers Download PDF

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Publication number
GB2169831A
GB2169831A GB08600839A GB8600839A GB2169831A GB 2169831 A GB2169831 A GB 2169831A GB 08600839 A GB08600839 A GB 08600839A GB 8600839 A GB8600839 A GB 8600839A GB 2169831 A GB2169831 A GB 2169831A
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GB
United Kingdom
Prior art keywords
planet wheel
pin
carrier
secured
lateral wall
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.)
Granted
Application number
GB08600839A
Other versions
GB8600839D0 (en
GB2169831B (en
Inventor
Vladimir Premiski
Wilhelm Wehren
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.)
Ford Motor Co
Original Assignee
Ford Motor Co
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 Ford Motor Co filed Critical Ford Motor Co
Publication of GB8600839D0 publication Critical patent/GB8600839D0/en
Publication of GB2169831A publication Critical patent/GB2169831A/en
Application granted granted Critical
Publication of GB2169831B publication Critical patent/GB2169831B/en
Expired 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
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H57/082—Planet carriers

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

To secure a planet wheel pin in a planet wheel carrier of a planetary gear system, a first pin end 4 is secured with a press fit in one lateral wall 2 of the planet wheel carrier 1 and the other end of the pin 4 is made as a split hollow tube into which a ball 9 is pressed after assembly of the carrier to spread the end of the pin 4 into press fit engagement with the second lateral wall 3 of the carrier 1. <IMAGE>

Description

SPECIFICATION Method of axially securing planet wheel pins in planet wheel carriers The invention relates to a method of axially securing a planet wheel pin in a planet wheel carrier of a planetary gear system, in which method the first end of the wheel pin is secured by press fitting into one lateral wall of the planet wheel carrier and the other end of the wheel pin is secured by deformation (material displacement) after mounting of the planet wheel and of the second lateral wall of the planet wheel carrier over the pin.
A method of axially securing the ends of the planet wheel pins in planet wheel carriers is known from DE-OS 25 03 518 in which the ends of the planet wheel pins are secured to the planet wheel carrier by displacement of material.
A further method of axially securing the planet wheel pins in planet wheel carriers is known from DE-PS 26 52 652, in which the planet wheel pins are secured by their first ends in one lateral wall of the planet wheel carrier by press fitting and are fixed by way of locking rings and a locking plate at their ends projecting through the other lateral wall of the planet wheel carrier.
A still further method for axially securing the wheel pins in planet wheel carriers is known from DE-AS 28 55 545, in which a resilient locking ring or circlip engages in recesses in the bearing journals.
The known methods are costly to implement because of the outlay required for materials and machining and they have the disadvantage that additional complicated steps must be taken to assure adequate lubrication of the bearing arrangement of the planet wheels.
With a view to mitigating at least some of the foregoing disadvantages, in accordance with the present invention at least the end of the planet wheel pin to be secured to the second lateral wall of the carrier is constructed in the form of hollow tube and is provided with a transverse slot, and after mounting of the planet wheel and the second lateral wall of the carrier is completed, a ball is pressed into the end of the planet wheel pin to spread the slotted end of the pin.
Preferably, the planet wheel pin is constructed in the form of a deep-drawn hollow pin.
During the manufacture of the planet wheel pin, a saving can be made in the outlay for material and machining and, in addition, cheap balls discarded from the production of ballbearings may be used for securing the pin in position.
The hollow end of the planet wheel pin in conjunction with the transverse slot at its end permit an adequate supply of lubricant to the bearing arrangement of the planet wheel, without transverse bores having to be provided in the pin for this purpose.
Alternatively, the planet wheel pin may be constructed cold extrusion moulding and provided with blind-end bores in the region of their transverse slots. In this case also, manufacture is simplified and both the fastening and the supply of oil are improved.
The invention will now be described further, by way of example, with reference to the accompanying drawings, in which: Figure I is a vertical section through a planet wheel carrier constructed by the method of the invention, Figure 2 is a section drawn to an enlarged scale of the end of a pin, Figure 3 is a side view of a first embodiment of a planet wheel pin constructed as a deep-drawn component; Figure 4 is an end view of the pin in Fig. 3 in the direction of the arrow IV; Figure 5 is a partial view of a further embodiment of a planet wheel pin as a part formed by cold extrusion moulding; and Figure 6 is an end view of the pin in Fig. 5 in the direction of the arrow VI on Fig. 5.
In Fig. 1, a planet wheel 5, of which there are several on the carrier, is rotatably mounted by way of a bearing arrangement 6 in a planet wheel carrier 1 on a planet wheel pin 4 between lateral walls 2 and 3 of the said planet wheel carrier 1. The bearing arrangement 6 is preferably a needle bearing arrangement.
The planet wheel pin 4 are constructed as a deep-drawn hollow pin, the ends of which are provided with transverse slots 7.
The tolerance of the receiving bores for the planet wheel pin 4 in the lateral walls 2 and 3 of the planet wheel carrier 1 is made possible in that one end of the planet wheel pin 4 towards the left-hand side of the Figure is secured in a known manner by forcing in with a press fit, while the other end of the planet wheel pin 4, to the right in Fig. 1, is received in the receiving bore in the lateral wall 3 of the planet wheel carrier 1 with a sliding fitting.
The planet wheel pin can alternatively be mounted with a sliding fit at both ends.
After the planet wheel 5 is mounted with its bearing arrangement 6 and the conventional thrust washers 8 in the planet wheel carrier 1, a ball 9 is pressed into the right-hand end of the hollow pin 4. The dimensions of the ball 9 are selected in conjunction with the inner bore 10 of the hollow pin 4 in such a way as to ensure a secure press fitting of the right-hand end of the hollow pin 4 in the lateral wall 3 of the planet wheel carrier 1.
The depth of the transverse slots 7 amounts to approximately two thirds of the diameter of the ball 9, and in this way it is ensured that lubricant which penetrates into the hollow pin 4 reaches the bearing arrange ment 6 by way of the radial parts of the transverse slots 7.
In the embodiment of a planet wheel pin 4' illustrated in Figs. 5 and 6, the said planet wheel pin is constructed as a pin 4'formed by cold extrusion moulding and in the region of its transverse slots 7' is provided with blind-end bores 10 which are made so deep that it is possible to press in the ball without difficulty.

Claims (4)

1. A method of axially securing a planet wheel pin in a planet wheel carrier of a planetary gear system, in which method the first end of the wheel pin is secured by press fitting into one lateral wall of the planet wheel carrier and the other end of the wheel pin is secured by deformation after mounting of the planet wheel and of the second lateral wall of the planet wheel carrier over the pin, wherein at least the end of the planet wheel pin to be secured to the second lateral wall of the carrier is constructed in the form of hollow tube and is provided with a transverse slot and wherein after mounting of the planet wheel and the second lateral wall of the carrier is completed, a ball is pressed into the end of the planet wheel pin to spread the slotted end of the pin.
2. A method as claimed in claim 1, wherein the planet wheel pin is constructed by cold extrusion-moulding, at least one end of the pin being provided with a blind bore in the region of the transverse slots.
3. A fastening arrangement for a planet wheel pin which pin is constructed as a hollow pin mounted in planet wheel carriers of planetary gears, one end of the pin being secured in one end wall of the planet wheel carrier and the other end being secured, after mounting of the planet wheel over the pin, in the second end face of the planet wheel carrier by material displacement, characterised in that the planet wheel pin is provided at both ends with transverse slits of a depth of two thirds of the diameter of a ball and, in at least one of its ends, after completion of the assembly, a ball is forced in to spread out the end of the pin.
4. A method of axially securing a planet wheel pin in a planet wheel carrier of a planetary gear system, substantially as herein described with reference to and as illustrated in the accompanying drawings.
GB08600839A 1985-01-17 1986-01-15 Method of axially securing planet wheel pins in planet wheel carriers Expired GB2169831B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853501400 DE3501400C1 (en) 1985-01-17 1985-01-17 Fastening arrangement for planet bolts designed as hollow bolts in planet carrier of planet gear

Publications (3)

Publication Number Publication Date
GB8600839D0 GB8600839D0 (en) 1986-02-19
GB2169831A true GB2169831A (en) 1986-07-23
GB2169831B GB2169831B (en) 1987-10-14

Family

ID=6260061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08600839A Expired GB2169831B (en) 1985-01-17 1986-01-15 Method of axially securing planet wheel pins in planet wheel carriers

Country Status (3)

Country Link
DE (1) DE3501400C1 (en)
FR (1) FR2576067B1 (en)
GB (1) GB2169831B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2622642A1 (en) * 1987-10-28 1989-05-05 Mitsubishi Electric Corp ENGINE STARTER STRUCTURE
DE4436963A1 (en) * 1993-11-10 1995-05-11 Schaeffler Waelzlager Kg Cam follower for a valve gear of an internal combustion engine
DE10345307A1 (en) * 2003-09-30 2005-04-14 Ina-Schaeffler Kg Brake lever for a valve drive of an internal combustion engine comprises a coupling device formed as an annular piston running in a smooth passageway of an inner lever
US20100313408A1 (en) * 2006-10-24 2010-12-16 Zf Friedrichshafen Ag Arrangement of a pin in a bore and method for positioning and securing the pin in the bore
WO2014135161A1 (en) * 2013-03-06 2014-09-12 Schaeffler Technologies Gmbh & Co. Kg Planetary drive with planetary gears and tubular planetary pins
WO2017215695A1 (en) * 2016-06-14 2017-12-21 Schaeffler Technologies AG & Co. KG Planetary gearing pin having a terminal assembly marking and method for producing a planetary gearing pin

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10108189C2 (en) * 2001-02-21 2003-04-17 Daimler Chrysler Ag Position assurance method and thus secured bolt and housing arrangement
DE102004055427B4 (en) * 2004-11-17 2017-06-29 Schaeffler Technologies AG & Co. KG Connecting arrangement between a first and a second component and method for producing such a connection arrangement
CN102996781A (en) * 2012-12-27 2013-03-27 宁波广天赛克思液压有限公司 Planet carrier with combination structure
DE102013203772B4 (en) 2013-03-06 2019-10-02 Schaeffler Technologies AG & Co. KG Lubricating device of a planetary drive

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB665358A (en) * 1947-12-22 1952-01-23 Automatic Elect Lab Bearing assembly

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR609531A (en) * 1926-07-08 1926-08-16
GB1007701A (en) * 1962-04-11 1965-10-22 Demag Ag Epicyclic gearing
BE692925A (en) * 1967-01-20 1967-07-03
DE7025922U (en) * 1970-07-09 1970-11-05 Universal Anchorage Co Ltd SELF-LOCKING BOLT.
FR2111638B1 (en) * 1970-10-01 1973-11-23 Soma
DE2503518A1 (en) * 1975-01-29 1976-08-19 Zahnradfabrik Friedrichshafen PLANETARY WHEEL CARRIER MADE OF SHEET METAL PARTS
EP0062859A1 (en) * 1981-04-08 1982-10-20 Willi Steuer Planetary transmission with elastically deformable orbital gears; chain transmission with rolling contact

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB665358A (en) * 1947-12-22 1952-01-23 Automatic Elect Lab Bearing assembly

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2622642A1 (en) * 1987-10-28 1989-05-05 Mitsubishi Electric Corp ENGINE STARTER STRUCTURE
DE4436963A1 (en) * 1993-11-10 1995-05-11 Schaeffler Waelzlager Kg Cam follower for a valve gear of an internal combustion engine
DE10345307A1 (en) * 2003-09-30 2005-04-14 Ina-Schaeffler Kg Brake lever for a valve drive of an internal combustion engine comprises a coupling device formed as an annular piston running in a smooth passageway of an inner lever
US20100313408A1 (en) * 2006-10-24 2010-12-16 Zf Friedrichshafen Ag Arrangement of a pin in a bore and method for positioning and securing the pin in the bore
WO2014135161A1 (en) * 2013-03-06 2014-09-12 Schaeffler Technologies Gmbh & Co. Kg Planetary drive with planetary gears and tubular planetary pins
WO2017215695A1 (en) * 2016-06-14 2017-12-21 Schaeffler Technologies AG & Co. KG Planetary gearing pin having a terminal assembly marking and method for producing a planetary gearing pin
CN109312845A (en) * 2016-06-14 2019-02-05 舍弗勒技术股份两合公司 Planetary gear pin with end-side mounting markings and method for producing a planetary gear pin

Also Published As

Publication number Publication date
GB8600839D0 (en) 1986-02-19
GB2169831B (en) 1987-10-14
DE3501400C1 (en) 1986-10-09
FR2576067A1 (en) 1986-07-18
FR2576067B1 (en) 1989-06-16

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PCNP Patent ceased through non-payment of renewal fee