KR20140025145A - Method of fixing pinion shaft of planetary gear assembly - Google Patents

Method of fixing pinion shaft of planetary gear assembly Download PDF

Info

Publication number
KR20140025145A
KR20140025145A KR1020120091431A KR20120091431A KR20140025145A KR 20140025145 A KR20140025145 A KR 20140025145A KR 1020120091431 A KR1020120091431 A KR 1020120091431A KR 20120091431 A KR20120091431 A KR 20120091431A KR 20140025145 A KR20140025145 A KR 20140025145A
Authority
KR
South Korea
Prior art keywords
pinion shaft
planetary gear
gear assembly
carrier plate
insertion groove
Prior art date
Application number
KR1020120091431A
Other languages
Korean (ko)
Inventor
김태훈
Original Assignee
현대 파워텍 주식회사
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 현대 파워텍 주식회사 filed Critical 현대 파워텍 주식회사
Priority to KR1020120091431A priority Critical patent/KR20140025145A/en
Publication of KR20140025145A publication Critical patent/KR20140025145A/en

Links

Images

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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • 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
    • 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
    • F16H2057/087—Arrangement and support of friction devices in planetary gearings, e.g. support of clutch drums, stacked arrangements of friction devices

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

The present invention relates to a method for fixing the pinion shaft of a planetary gear assembly and, more specifically, to a method for fixing the pinion shaft of a planetary gear assembly, capable of simplifying the fixing structure of a pinion shaft and a carrier plate. For this, the present invention provides the method for fixing the pinion shaft of a planetary gear assembly, wherein an insertion groove is formed to allow a spherical joint ball to be inserted into one end of the pinion shaft, and the pinion shaft is fixed to the carrier plate by inserting the joint ball into the insertion groove while the pinion shaft is being inserted into the mounting hole of the carrier plate.

Description

Pinion shaft fixing method of planetary gear assembly {METHOD OF FIXING PINION SHAFT OF PLANETARY GEAR ASSEMBLY}

The present invention relates to a pinion shaft fixing method of the planetary gear assembly, and more particularly to a pinion shaft fixing method of the planetary gear assembly that can simplify the fixing structure of the pinion shaft and the carrier plate.

Generally, the planetary gear set includes a sun gear, a ring gear, a pinion gear, and a carrier assembly connecting the pinion gears. The carrier assembly comprises a carrier plate and a pinion shaft fixed to the carrier.

There are several ways to fix the pinion shaft to the carrier plate. A representative method is to fix holes by machining holes in the pinion shaft and the carrier plate, respectively, and inserting a fixing pin into the holes.

That is, as shown in FIG. 1, the planetary gear set 1 includes a pinion shaft 11, a pinion gear 12, and a carrier plate 13. A bearing 14 is interposed between the inner circumferential surface of the pinion gear 12 and the outer circumferential surface of the pinion shaft 11, and the pinion gear 12 rotates about the pinion shaft 11.

In addition, the carrier plate 13 may be fastened to both ends of the pinion shaft 11, and a spline (not shown) may be formed on the outer surface of the left carrier plate 13.

A first pinhole 15 is formed on the right side of the pinion shaft 11, and the carrier plate 13 is mounted on a portion where the first pinhole 15 is formed. In addition, a second pinhole 16 is formed in the carrier plate 13. That is, the fixing pin 17 is inserted into the first and second pin holes 15 and 16. Thus, the pinion shaft 11 and the carrier plate 13 are fastened to each other.

At this time, in order to assemble the fixing pin 17, the pin insertion hole should be located at the center of the pinion shaft insertion hole, and the pin insertion hole should be processed at the circumferential surface of the carrier plate 13, and the hole size is small. If the length of the drill is long, it is difficult to machine the hole in the correct position, which causes a problem of poor pin assembly.

Therefore, the present invention was created to solve the above problems, and an object of the present invention is to simplify the fixing structure of the pinion shaft and the carrier plate when assembling the planetary gear assembly.

Pinion shaft fixing method of the planetary gear assembly according to an embodiment of the present invention for achieving this object forms an insertion groove so that the spherical coupling ball can be inserted into one end of the pinion shaft, the pinion shaft of the carrier plate The pinion shaft is fixed to the carrier plate by pressing the coupling ball into the insertion groove in a state of being inserted into the mounting hole.

In addition, the width of the insertion groove is characterized in that less than the diameter of the coupling ball.

In addition, the material of the coupling ball is characterized in that the steel.

As described above, according to the pinion shaft fixing method of the planetary gear assembly according to the present invention, the support structure is simple and the assembly method is simple, thereby reducing the cost and simplifying the process.

1 is a cross-sectional view showing a pinion shaft fixing method of the planetary gear assembly according to the prior art.
2 is a cross-sectional view showing a pinion shaft fixing method of the planetary gear assembly according to an embodiment of the present invention.
Figure 3 shows the state before the pinion shaft is coupled to the mounting hole of the carrier plate in the pinion shaft fixing method of the planetary gear assembly according to an embodiment of the present invention.
Figure 4 shows the pinion shaft is coupled to the mounting hole of the carrier plate in the pinion shaft fixing method of the planetary gear assembly according to an embodiment of the present invention.
Figure 5 shows a state in which the coupling ball is inserted into the insertion groove of the pinion shaft in the pinion shaft fixing method of the planetary gear assembly according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view showing a pinion shaft fixing method of the planetary gear assembly according to an embodiment of the present invention. As shown in FIG. 2, the pinion shaft fixing method of the planetary gear assembly according to an exemplary embodiment of the present invention includes a carrier plate rotatably coupled to a rotation shaft of a sun gear (not shown) of the planetary gear assembly 100 for an automatic transmission. 130 and a pinion gear 120 meshed with the sun gear is rotatably supported by the bearing 140 and is coupled to the carrier plate 130.

When assembling the planetary gear assembly 100, the pinion shaft 110 is inserted into the mounting hole 131 of the carrier plate 130, and the pinion gear 120 is inserted into the pinion shaft 110 so that the carrier plate ( 130 and the pinion gear 120 is performed.

Here, an insertion groove 150 is formed at one end of a direction in which the pinion shaft 110 is inserted into the mounting hole 131 of the carrier plate 130, and has a spherical shape to be press-fitted into the insertion groove 150. It is provided with a coupling ball 200 formed. At this time, the pinion shaft 110 to press the coupling ball 200 in the insertion groove 150 in a state that is fully inserted into the mounting hole 131 of the carrier plate 130. That is, the pinion shaft 110 and the carrier plate 130 are fixedly coupled because the insertion groove 150 is opened by a predetermined interval by the press-fit of the coupling ball 200.

As described above, the process of the pinion shaft fixing method of the planetary gear assembly according to an embodiment of the present invention will be described in detail.

Figure 3 shows the state before the pinion shaft is coupled to the mounting hole of the carrier plate in the pinion shaft fixing method of the planetary gear assembly according to an embodiment of the present invention. As shown in FIG. 3, an insertion groove 150 is formed at one end of the pinion shaft 110 to allow the coupling ball 200 to be described later to be inserted.

Figure 4 shows the pinion shaft is coupled to the mounting hole of the carrier plate in the pinion shaft fixing method of the planetary gear assembly according to an embodiment of the present invention. As shown in FIG. 4, the pinion shaft 110 is completely inserted into the mounting hole 131 of the carrier plate 130.

Figure 5 shows a state in which the coupling ball is inserted into the insertion groove of the pinion shaft in the pinion shaft fixing method of the planetary gear assembly according to an embodiment of the present invention. As shown in FIG. 5, the width d of the insertion groove 150 is smaller than the diameter D of the coupling ball 200, so that the width d of the insertion groove 150 is a predetermined width when the coupling ball 200 is press-fitted. The deformation occurs to increase by. That is, the diameter D of the coupling ball 200 is preferably formed to be larger than the width d of the insertion groove 150. In addition, the coupling ball 200 is made of a steel material exhibits almost no elastic deformation characteristics, but the pinion shaft 110 and the carrier plate 130 as described later even if a minute elastic deformation occurs in the width of the insertion groove 150. ) Can be combined.

Thereafter, the insertion groove 150 is increased by a predetermined width by the press-fit of the coupling ball 200 and the pinion shaft 110 and the carrier plate 130 due to the adhesion between the insertion hole 150 and the mounting hole 131. ) Is completed. Therefore, the pinion shaft 110 can be coupled to the carrier plate 130 by omitting a separate fixing pin as in the related art.

In addition, since the planetary gear assembled as described above is not formed in each of the carrier plate and the pinion shaft in the conventional groove or hole portion in which the fixing pin is inserted, the planetary gear assembly is driven for a long time by driving of the automatic transmission. It is possible to prevent the planetary gear assembly from being deformed or damaged by the impact generated when the planetary gear assembly is started or terminated.

 While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And all changes to the scope that are deemed to be valid.

100: planetary gear assembly
110: pinion shaft
120: pinion gear
130: carrier plate
131: mounting hole
140: bearing
150: insert groove
200: combine ball

Claims (3)

An insertion groove is formed so that a spherical engagement ball can be inserted into one end of the pinion shaft,
And pinning the pinion shaft to the carrier plate by pressing the coupling ball into the insertion groove while the pinion shaft is inserted into the mounting hole of the carrier plate. The method of claim 1,
The pinion shaft fixing method of the planetary gear assembly, characterized in that the width of the insertion groove is smaller than the diameter of the coupling ball. 3. The method of claim 2,
Pinion shaft fixing method of the planetary gear assembly, characterized in that the material of the coupling ball is steel.
KR1020120091431A 2012-08-21 2012-08-21 Method of fixing pinion shaft of planetary gear assembly KR20140025145A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120091431A KR20140025145A (en) 2012-08-21 2012-08-21 Method of fixing pinion shaft of planetary gear assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120091431A KR20140025145A (en) 2012-08-21 2012-08-21 Method of fixing pinion shaft of planetary gear assembly

Publications (1)

Publication Number Publication Date
KR20140025145A true KR20140025145A (en) 2014-03-04

Family

ID=50640460

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120091431A KR20140025145A (en) 2012-08-21 2012-08-21 Method of fixing pinion shaft of planetary gear assembly

Country Status (1)

Country Link
KR (1) KR20140025145A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101887880B1 (en) 2018-01-22 2018-08-10 (주)에이테크오토모티브 Structure of EPB actuator gear box
CN110529580A (en) * 2019-07-26 2019-12-03 江苏摩多利传动机械制造有限公司 Planetary reducer output shaft not fenestration

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101887880B1 (en) 2018-01-22 2018-08-10 (주)에이테크오토모티브 Structure of EPB actuator gear box
CN110529580A (en) * 2019-07-26 2019-12-03 江苏摩多利传动机械制造有限公司 Planetary reducer output shaft not fenestration

Similar Documents

Publication Publication Date Title
CN106321741B (en) The planetary gear train of transmission device for motor
CN102483132B (en) Eccentric Oscillation Gear Device And Method For Producing Eccentric Oscillation Gear Device
KR101849187B1 (en) Wave generator for wave gear device and production method for wave generator
KR20090040005A (en) Planet gear set equipped with pinion shaft and carrier
JP5762342B2 (en) Gear parts and fastening jig
KR20140025145A (en) Method of fixing pinion shaft of planetary gear assembly
WO2009053662A1 (en) Electric machine comprising an elastic connection to a gearbox primary shaft
JP2013174323A (en) Differential
JP2011511221A (en) A differential case comprising a half shell and a method of manufacturing the differential case
JP4278679B2 (en) Planetary gear set
CN105658999A (en) Support device for light-structure differential transmission device
JP2009281487A (en) Connection structure of crankshaft and rotary member
JP2018054043A (en) Assembling process for differential device and differential device
US8202195B2 (en) Pinion gear subassembly and method of assembling a planet carrier assembly
US8651967B2 (en) Torque transmission device
JP2005199645A (en) Thermal transfer printer and image forming apparatus
CN201110318Y (en) Structure for connecting shafts
US20120114276A1 (en) Bearing arrangement
CN203023192U (en) Spline sleeve used for fixing mechanical parts
CN218055349U (en) Ball screw belt pulley structure of electronic power steering gear
CN201347982Y (en) External spherical gear bearing with retaining bracket
KR20090062924A (en) Parking gear set
KR200238171Y1 (en) Gear installed bearing
CN104235203A (en) Spline housing capable of maintaining stability and mounting method thereof
CN106593740B (en) Starter and transmission device thereof

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application