JP4992840B2 - Carrier for planetary gear device for vehicle and method for manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carrier of a vehicular planetary gear device maximally miniaturized while securing required strength, and a manufacturing method therefor. <P>SOLUTION: Since there is no need to arrange a through-hole as a processing reference for processing the through-hole 76 in a position between a sun gear S2 on the inner peripheral side of a carrier cover 54 and a ring gear R2 by arranging a processing reference groove 78 of a rectangular cross section arranged to open outward, on the tip of a projection part 82 projecting outward in the radial direction with the axis C1 as the center from an outer peripheral part of a flange part 80 of the carrier cover 54, a plurality of pinions P2 and a plurality of joining parts 64 for mutually joining a carrier body 52 and the carrier cover 54 between its plurality of pinions P2 can be arranged with a minimum clearance, so that the maximally miniaturized and lightened carrier CA2 is provided while securing the required strength. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a carrier for a planetary gear device for a vehicle and a manufacturing method thereof, and more particularly to a carrier that is reduced in size and weight and a manufacturing method thereof.

There is known a carrier for a planetary gear device for a vehicle including a carrier body and a carrier cover for supporting both ends of a carrier pin that rotatably supports a pinion meshing with both of the sun gear and the ring gear. For example, this is the carrier described in Patent Document 1. The carrier cover of this carrier has a hollow cylindrical shaft portion and a hollow disc-shaped flange portion projecting radially outward from one end of the outer peripheral portion of the shaft portion around the shaft center of the shaft portion, I have. In such a carrier, the through hole for fitting the carrier pin is formed on the inner peripheral surface or the outer peripheral surface of the carrier body and the carrier cover coupled to each other, and on the inner peripheral surface of the flange portion of the carrier cover. It is formed by machining a machining reference hole provided at a substantially equal interval in the circumferential direction on the side as a machining reference. Here, when performing the machining, the inner peripheral surface or the outer peripheral surface of the carrier body and the carrier cover which are coupled to each other is used for so-called centering to align the processing center with a predetermined position of the processing machine. The processing reference hole provided on the inner peripheral side of the flange portion is used for the relative position of the carrier in the circumferential direction with respect to the processing machine, that is, for phase alignment. The processing reference hole is formed so as to penetrate from the viewpoint of manufacturing, and from the viewpoint of product performance such as durability and strength, the carrier cover is joined to the carrier body at the joint surface with the carrier body. It is provided at a position excluding a sliding portion with the pinion washer inserted into the carrier pin together with the portion and the pinion.
JP-A-7-133848

  By the way, the conventional planetary gear device is desired to be as small as possible while ensuring the necessary strength in order to reduce weight or improve layout in the interior of a transmission or a hybrid drive device, for example. ing. On the other hand, it is conceivable to reduce the size by reducing the radial dimension around the axis of the carrier. However, this miniaturization has a problem that it has a limit because it is necessary to secure a space for providing the processing reference hole. That is, as described above, it is desirable that the processing reference hole is formed so as to penetrate from the viewpoint of production, and from the viewpoint of product performance such as durability and strength, the processing cover hole is formed with the carrier body of the carrier cover. Since it is necessary to provide the joint surface at a position excluding the joint portion with the carrier body and the sliding portion with the pinion washer, there is a problem that the space for providing the machining reference hole is eliminated by downsizing.

  The present invention has been made against the background of the above circumstances, and an object of the present invention is to provide a carrier for a planetary gear device for a vehicle that is made as small as possible while ensuring the necessary strength, and a method for manufacturing the same. There is.

The present invention has been made against the background described above, and the gist of the invention according to claim 1 is that (a) a carrier that rotatably supports a pinion that meshes between the sun gear and the ring gear. A carrier of a planetary gear device for a vehicle in which a carrier main body and a carrier cover for supporting both ends of a pin are fixed to each other by brazing , and (b) a protrusion protruding radially outward from an outer peripheral portion of the carrier cover A processing reference groove that opens outwardly for processing a through hole for fitting the carrier pin is provided at the tip of the portion .

The gist of the invention according to claim 2 is that: (c) a carrier body and a carrier cover for supporting both ends of a carrier pin that rotatably supports a pinion that meshes between the sun gear and the ring gear; A vehicle planetary gear device carrier manufacturing method comprising : (d) a metal having a machining reference groove that opens outward at a tip of a protrusion protruding radially outward from an outer peripheral portion of the carrier cover. A carrier cover sintering step in which the carrier cover is formed by sintering from powder using a sintering mold; and (e) carrier body sintering in which the carrier body is formed by sintering from metal powder using a sintering mold. A bonding step; (f) a brazing step of bonding the carrier body and the carrier cover obtained by sintering to each other by brazing; and (g) a carrier body coupled to each other. A machining step for forming a through hole into which the carrier pin is fitted in the carrier cover with reference to a machining reference groove provided at a tip of a protrusion protruding radially outward from the outer periphery of the carrier cover. Is to include.

According to the carrier of the planetary gear device for a vehicle according to the first aspect of the present invention, the carrier main body and the carrier cover for supporting both ends of the carrier pin that rotatably supports the pinion that meshes between the sun gear and the ring gear are provided. A vehicle planetary gear unit carrier fixed to each other by brazing , wherein a through hole for fitting the carrier pin is formed at a tip of a projecting portion projecting radially outward from an outer peripheral portion of the carrier cover. Since a processing reference groove that opens outward is provided, a through hole is provided as a processing reference for processing the through hole at a position between the sun gear and the ring gear on the inner peripheral side of the carrier cover. Since there is no need, a carrier that is as small and light as possible can be obtained while ensuring the required strength. That is, a plurality of pinions (pinion washers) that are substantially equally spaced in the circumferential direction between the sun gear and the ring gear on the inner peripheral side of the carrier, and the carrier body and the carrier cover are coupled to each other between the plurality of pinions. Since the plurality of connecting members can be arranged with a minimum gap, the carrier can be made as small as possible.

According to the carrier manufacturing method of the planetary gear device for a vehicle of the invention according to claim 2, the carrier for supporting both ends of the carrier pin that rotatably supports the pinion that meshes between the sun gear and the ring gear. A carrier manufacturing method for a planetary gear device for a vehicle including a main body and a carrier cover, wherein the carrier cover has a processing reference groove that opens outward at a tip of a protrusion protruding radially outward from an outer peripheral portion of the carrier cover. A carrier cover sintering step in which the carrier cover is formed by sintering from a metal powder using a sintering mold; and carrier body sintering in which the carrier body is formed by sintering from a metal powder using a sintering mold. And a brazing step of bonding the carrier body and the carrier cover obtained by sintering to each other by brazing. The carrier body and the carrier cover, machined to form by machining a through hole fitted into the carrier pin working reference groove formed at the tip of the projecting portion projecting from the outer periphery of the carrier cover radially outwardly relative Since it is not necessary to provide a through hole as a processing reference for processing the through hole in the machining step at a position between the sun gear and the ring gear on the inner peripheral side of the carrier, Between the sun gear and the ring gear, a plurality of pinions (pinion washers) and a plurality of connecting members for mutually coupling the carrier body and the carrier cover can be arranged with a minimum gap, A carrier that is as small and light as possible while ensuring the necessary strength can be obtained. In addition, since the processing standard is changed from the conventional hole shape to the groove shape, the sintering mold used in the carrier cover sintering process has a pin structure for forming the processing reference hole having the conventional hole shape. Since it becomes unnecessary, there is an advantage that productivity and durability of the sintered mold are improved.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the following embodiments, the drawings are appropriately simplified or modified, and the dimensional ratios, shapes, and the like of the respective parts are not necessarily drawn accurately.

  FIG. 1 is a skeleton diagram showing a schematic configuration of a hybrid drive apparatus 10 to which a carrier CA2 of the present embodiment is applied. The hybrid drive apparatus 10 of the present embodiment is suitably employed in a vehicle of an FF (front engine / front drive) type drive system, and the rotation shaft inside the hybrid drive apparatus 10 is substantially the same as the vehicle width direction. Horizontally placed in parallel. In FIG. 1, a hybrid drive device 10 includes an engine 12 that is a known internal combustion engine such as a gasoline engine or a diesel engine, a first electric motor MG1, a single pinion type first planetary gear unit 14, and a single pinion type first gear unit. A two planetary gear unit 16 and a second electric motor MG2 are provided. A crankshaft 17 as an output member of the engine 12 is divided through a flywheel 18 for suppressing rotation fluctuations and torque fluctuations, and a damper device 19 for absorbing and damping pulsation due to sudden torque fluctuations. It is connected to an input shaft 21 rotatably supported around an axis C1 in a housing 20 of the type. The first electric motor MG1, the first planetary gear device 14, the second planetary gear device 16, and the second electric motor MG2 are arranged in the split housing 20 with a common axis C1.

  The first planetary gear device 14 functions as a power distribution mechanism for mechanically distributing the power from the engine 12 to the first electric motor MG1 and the output side, that is, a reduction device 36 described later. And a ring gear R1 connected to a counter drive gear 24 as an output member of the planetary gear unit 16, and mainly a engine. The power transmitted from 12 is distributed to the first electric motor MG1 and the counter drive gear 24. Here, the counter drive gear 24 is meshed with a counter driven gear 32 fixed to a counter shaft 30 rotatably supported by the housing 20.

  The second planetary gear device 16 is disposed between the second electric motor MG2 and the counter drive gear 24, and functions as a speed reduction mechanism for decelerating the output of the second electric motor MG2. A sun gear S2 connected to the rotor 34 of the MG2, a carrier CA2 connected to the housing 20, and a ring gear R2 connected to the counter drive gear 24 are provided. The counter drive gear 24, the ring gear R1 of the first planetary gear device 14, and the ring gear R2 of the second planetary gear device 16 are integrally formed from a common member.

  The first electric motor MG1 is mainly used as a generator, and the electric energy generated by being rotationally driven by the engine 12 via the planetary gear mechanism 14 is charged in a power storage device such as a battery, while the second electric motor MG2 is mainly used. The second motor MG2 that is used as a drive motor and is used alone or together with the engine 12 as a power source of the vehicle and requires a large torque is larger than the first motor MG1. The first electric motor MG1 is also used as a drive motor when the engine is started or at high speed, and the second electric motor MG2 is also used as a generator when the vehicle is decelerated. The first electric motor MG1 and the second electric motor MG2 are both motor generators that function both as a generator and an electric motor.

  The speed reduction device 36 is for transmitting the rotational speed of the output transmitted from the first planetary gear device 14 to the differential gear device 38 while reducing the rotational speed, and a final drive gear 40 fixed to the countershaft 30. The final drive gear 40 is provided with a final gear pair 46 having a final driven gear (differing gear) 44 that is larger in diameter than the final drive gear 40 and is fixed to a differential case 42 as a housing of the differential gear unit 38. The differential gear device 38 rotates the pair of left and right drive shafts 48 while allowing a rotation difference.

  In the hybrid drive device 10 configured as described above, the power generated by the engine 12, the first electric motor MG1, or the second electric motor MG2 is transmitted to the pair of drive shafts via the reduction gear 36 and the differential gear device 38. 48 and a pair of drive wheels (not shown).

  FIG. 2 is a cross-sectional view of the second planetary gear device 16 and its peripheral portion shown in an enlarged view taken along the line II in FIG. 1, and FIG. 3 is an enlarged view of the carrier CA2 shown in FIG. . FIG. 4 is a side view of the carrier CA2 showing the IV arrow portion of FIG. 2 to 4, the carrier CA2 rotatably supports a pinion P2 meshing with both of the sun gear S2 and the ring gear R2 and a pair of pinion washers W2 provided at both ends of the pinion P2. A carrier body 52 and a carrier cover 54 are provided to support both ends of the carrier pin 50, respectively.

  The carrier body 52 projects from a hollow cylindrical shaft portion 56 having a shaft center C1 and an end on the carrier cover 54 side of the shaft portion 56 radially outward centering on the shaft center C1, and in the circumferential direction. A hollow disk-shaped flange portion 60 having a plurality of through holes 58 into which the carrier pins 50 are inserted and formed in a direction parallel to the axis C1 at substantially equal intervals, and a carrier of the flange portion 60 A plurality (five in this embodiment) protrudes from the end surface on the cover 54 side to the carrier cover 54 side at substantially equal intervals in the circumferential direction, and the protruding front end surfaces are coupled to the carrier cover 54 by brazing. The coupling part 64 is provided. The carrier body 52 is formed from metal powder by sintering. In the present embodiment, the shaft portion 56 is provided with a stepped inner peripheral surface 72 on which an outer race 70 of a bearing 68 for rotatably supporting the input shaft 21 around the axis C1 is fitted. ing.

  The carrier cover 54 protrudes radially outward from the one end of the shaft portion 74 on the side of the carrier main body 52 around the shaft center C1 in the radial direction, with the shaft center C1 and the inner peripheral surface 73. In order to fit the carrier pin 50 formed so as to penetrate in a direction parallel to the axis C1 so that the relative position (phase) around the axis C1 coincides with the through hole 58 of the carrier body 52. A hollow disc-shaped flange having a plurality of through-holes 76 and provided with a processing reference groove 78 that opens outwardly for processing the through-holes 76 in a radially outer periphery centered on the axis C1. Part 80. The carrier cover 54 is formed by sintering from metal powder. In the present embodiment, the processing reference groove 78 is a rectangular shape provided so as to open outward from the outer periphery of the carrier cover 54 at the tip of a protrusion 82 protruding outward in the radial direction centered on the axis C1. Although the groove has a cross section, the groove is not limited to this, and may be a groove having a triangular cross section or a semicircular cross section. Further, instead of a groove, a hole penetrating in a direction parallel to the axis C1 or a blind hole drilled in a direction perpendicular to the axis C1 may be used. In the present embodiment, the flange portion 80 is connected to the housing 20 so as not to rotate around the axis C1, and is radially outward from the outer peripheral portion of the flange portion 80 about the axis C1. A plurality of external teeth 84 projecting in the direction and meshing with a plurality of internal teeth (not shown) provided in the housing 20 are provided. When the carrier CA2 is not connected to the housing 20, the external teeth 84 are It does not necessarily have to be provided. Further, when the carrier CA2 is not connected to the housing 20, the processing reference groove 78 may be formed on the outer peripheral surface of the flange 80 instead of the protrusion 82.

  The carrier body 52 and the carrier cover 54 are coupled to each other by brazing as described above. FIG. 5 is a side view showing the carrier cover 54 at the portion indicated by the arrow V in FIG. In FIG. 5, alternate long and short dash lines indicate regions where the tips of the plurality of coupling portions 64 of the carrier body 52 abut against the carrier cover 54. 3 and 5, the two-dot chain line indicates the pinion P2 and a pair of pinion washers W2 that are in sliding contact with the carrier body 52 and the carrier cover 54, respectively. As shown in FIGS. 3 and 5, the plurality of coupling portions 64 of the carrier body 52 protrude from the joint surface of the carrier cover 54 with the carrier body 52 to the carrier body 52 side between the plurality of through holes 76. A small penetrating diameter that is positioned by the positioning projection 86 provided and penetrates in a direction parallel to the axis C1 at a substantially central position of a contact area of the carrier cover 54 with the coupling portion 64 indicated by a one-dot chain line. The molten solder accommodated in the hole 88 is brazed to the carrier cover 54 by dipping into the gap between the carrier cover 54 and the tip of the coupling portion 64 based on the surface tension. . As shown in FIG. 5, the carrier CA2 of the present embodiment has a plurality of pinions P2 (pinion washers W2) that are substantially equidistant in the circumferential direction between the sun gear S2 and the ring gear R2, and between the plurality of pinions. A plurality of coupling portions (connecting members) 64 for coupling the carrier main body 52 and the carrier cover 54 to each other are arranged with a minimum gap.

  According to the carrier CA2 of the second planetary gear device (vehicle planetary gear device) 16 of the present embodiment configured as described above, the pinion P2 meshing with both of them can be rotated between the sun gear S2 and the ring gear R2. A carrier CA2 of the second planetary gear device 16 having a carrier body 52 and a carrier cover 54 for supporting both ends of the carrier pin 50 to be supported on the shaft C1 from the outer peripheral portion of the flange portion 80 of the carrier cover 54. Since a processing reference groove 78 having a rectangular cross section provided so as to open outward is provided at the tip of the projecting portion 82 projecting radially outward as the center, the sun gear on the inner peripheral side of the carrier cover 54 is provided. Since there is no need to provide a through hole as a processing standard for processing the through hole 76 at a position between S2 and the ring gear R2, the required strength Carrier CA2 that is smaller and lighter as much as possible while securing is obtained. That is, between the sun gear S2 and the ring gear R2 on the inner peripheral side of the carrier CA2, a plurality of pinions P2 (pinion washers W2) that are substantially equally spaced in the circumferential direction, and between the plurality of pinions P2, the carrier body 52 and the carrier Since a plurality of coupling portions (connection members) 64 for coupling the cover 54 to each other can be arranged with a minimum gap, the carrier CA2 can be made as small as possible. Further, there is an advantage that, for example, the layout property inside the hybrid drive device 10 is improved.

  FIG. 6 is a process diagram for explaining a manufacturing process of the carrier CA2. Hereinafter, the manufacturing process will be described with reference to the process diagram of FIG.

  First, in the carrier cover sintering step p1 of FIG. 6, a shape having a processing reference groove 78 that opens outward is formed on the outer peripheral portion, and is pressed from a metal powder such as iron, steel, Fe—Cu alloy or the like using a mold. After forming, the carrier cover 54 is obtained by increasing the pressure by sintering in a predetermined atmosphere. In the carrier body sintering step p2, the carrier body is formed by press-molding a metal powder such as iron, steel, Fe-Cu alloy or the like using a mold and then sintering in a predetermined atmosphere. 52 is obtained.

  Next, in the brazing step p3, the carrier body 52 and the carrier cover 54 obtained by sintering in the carrier cover sintering step p1 and the carrier body sintering step p2 are joined to each other by brazing. That is, for example, the carrier cover 54 and the carrier main body 52 that are positioned and temporarily fixed are heated in a heating furnace in a state where the wax is accommodated in the through-small-diameter hole 88 of the carrier cover 54, whereby the through-small-diameter hole is obtained. The wax in 88 is melted and immersed in the gap between the carrier cover 54 and the tip of the coupling portion 64, and then cooled and solidified to be coupled to each other.

  Next, in the machining step p4, the carrier cover 54 and the inner peripheral surfaces 70 and 73 of the carrier body 52 and the carrier cover 54 are connected to the carrier body 52 and the carrier cover 54 which are coupled to each other in the brazing step p3. The processing reference groove 78 having a rectangular cross section provided so as to open outward at the tip of the protrusion 82 protruding outward in the radial direction centering on the axis C1 from the outer peripheral portion of the flange portion 80 of 54 is used as a reference. A through hole 76 for fitting the carrier pin 50 is formed by machining. Here, when performing the machining, the inner peripheral surfaces 70 and 73 are used for so-called centering to align the axis of the machining target with a predetermined position of the machining machine, and the machining reference groove 78 having the rectangular cross section. Is used for the relative position in the circumferential direction of the carrier CA2 with respect to the processing machine, that is, for phase alignment. The carrier CA2 is manufactured through the above steps.

  According to the manufacturing method of the carrier CA2 of the second planetary gear device (vehicle planetary gear device) 16 of the present embodiment configured as described above, the pinion meshes with both of the sun gear S2 and the ring gear R2. A method of manufacturing a carrier CA2 of a second planetary gear device (vehicle planetary gear device) 16 including a carrier body 52 and a carrier cover 54 for supporting both ends of a carrier pin 50 that rotatably supports P2, A carrier cover sintering step p1 in which the carrier cover 54 is formed by sintering from a metal powder using a sintering die in a shape having a processing reference groove 78 that opens in the outer periphery, and a sintering die from the metal powder. The carrier body sintering step p2 for forming the carrier body 52 by sintering, and the carrier cover sintering step p1 and the carrier body sintering step p2. The carrier body 52 and the carrier cover 54 obtained by sintering are joined to each other by brazing, and the carrier cover 52 and the carrier cover 54 joined to each other in the brazing process p3. 54, with reference to a machining reference groove 78 having a rectangular cross section provided so as to open outward at the tip of a protrusion 82 protruding radially outward from the outer peripheral portion of the flange portion 80 about the axis C1. A machining step p4 for forming the through hole 76 into which the pin 50 is to be fitted by machining, so that the through hole as a machining reference for machining the through hole 76 in the machining step p4 is defined in the carrier CA2. Since there is no need to provide it at a position between the sun gear S2 on the inner peripheral side and the ring gear R2, the sun gear S2 and the ring gear R2 Between the gear R2, a plurality of pinions P2 (pinion washers W2) and a plurality of connecting portions (connecting members) 64 for connecting the carrier body 52 and the carrier cover 54 to each other are provided with a minimum gap. Therefore, the carrier CA2 that is reduced in size and weight as much as possible while ensuring the necessary strength can be obtained. In addition, since the processing standard is changed from the conventional hole shape to the rectangular groove shape, a pin for forming a processing reference hole having a conventional hole shape is formed in the sintering die used in the carrier cover sintering step p1. Since the structure is unnecessary, there is an advantage that productivity and durability of the sintered mold are improved.

  As mentioned above, although one Example of this invention was described in detail with reference to drawings, this invention is not limited to this Example, It can implement in another aspect.

  For example, in the above-described embodiment, the carrier main body 52 and the carrier cover 54 are formed by sintering. However, the present invention is not limited thereto, and may be formed by, for example, powder metallurgy, casting, pressing, cutting, or the like. Good. In addition, the carrier CA2 is configured such that after the carrier body 52 and the carrier cover 54 are manufactured separately, they are connected to each other by brazing. Or may be coupled to each other by bolt fastening or the like. The carrier CA2 may be integrally formed from the beginning.

  Further, in the above-described embodiment, in the machining step p4, the inner peripheral surfaces 70 and 73 of the carrier cover 54 and the carrier body 52 are used, so that the so-called core for aligning the processing center with a predetermined position of the processing machine. However, the present invention is not limited to this, and the centering may be performed by using, for example, the outer peripheral surfaces of the flange portions 60 and 80 or the shaft portions 56 and 74.

  In the above-described embodiment, the carrier CA2 is used in the single pinion type second planetary gear device 16, but is not limited thereto, and may be used in a planetary gear device such as a double pinion type.

  In the above-described embodiment, the carrier CA2 is used in the second planetary gear device 16 constituting the hybrid drive device 10. However, the present invention is not limited to this. For example, the planetary gear constituting an automatic transmission or a transfer is used. It can also be used in devices. Further, there is no particular limitation on the number of planetary gear devices used and which elements of the planetary gear devices are connected to which members.

  In the above-described embodiment, the vehicle to which one embodiment of the present invention is applied is an FF type drive system, but is not limited thereto. For example, the present invention can also be applied to vehicles of FR type, 4WD type, RR type, MR type, or other driving types.

  It should be noted that the above description is merely an embodiment, and other examples are not illustrated. However, the present invention is implemented in variously modified and improved modes based on the knowledge of those skilled in the art without departing from the gist of the present invention. Can do.

1 is a skeleton diagram showing a schematic configuration of a hybrid drive device to which a carrier of an embodiment is applied. It is sectional drawing of the 2nd planetary gear apparatus and its peripheral site | part which expand and show the II arrow part of FIG. It is a figure which expands and shows the carrier shown in FIG. It is a side view of the carrier which shows the IV arrow part of FIG. It is a side view which shows the carrier cover of the V arrow part of FIG. FIG. 5 is a process diagram for explaining a manufacturing process of the carrier of FIG. 1.

Explanation of symbols

16: Second planetary gear device (vehicle planetary gear device)
50: Carrier pin 52: Carrier body 54: Carrier cover 58, 76: Through hole 78: Processing reference groove CA1, CA2: Carrier P2: Pinion R1, R2: Ring gear S1, S2: Sun gear p1: Carrier cover sintering step p2: Carrier body sintering process p3: brazing process p4: machining process

Claims (2)

A carrier of a planetary gear unit for a vehicle in which a carrier body and a carrier cover for supporting both ends of a carrier pin rotatably supporting a pinion meshing with each other between a sun gear and a ring gear are fixed to each other by brazing. ,
A processing reference groove that opens outwardly for processing a through hole for fitting the carrier pin is provided at a tip of a projecting portion protruding radially outward from an outer peripheral portion of the carrier cover. Carrier for planetary gear device for vehicle. A method of manufacturing a carrier of a planetary gear device for a vehicle comprising a carrier body and a carrier cover for supporting both ends of a carrier pin that rotatably supports a pinion that meshes between a sun gear and a ring gear,
The carrier cover is formed by sintering from a metal powder using a sintering die in a shape having a processing reference groove that opens outward at the tip of the protrusion protruding radially outward from the outer periphery of the carrier cover. Carrier cover sintering step;
A carrier body sintering step of forming the carrier body by sintering from a metal powder using a sintering mold;
A brazing step of joining the carrier body and the carrier cover obtained by sintering together by brazing;
Machining a through hole into which the carrier pin is fitted in the carrier body and the carrier cover which are coupled to each other with reference to a machining reference groove provided at the tip of a protrusion protruding radially outward from the outer periphery of the carrier cover. The manufacturing method of the carrier of the planetary gear apparatus for vehicles characterized by including the machining process formed by these.

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