CN213871067U - Planet carrier of automatic transmission of automobile - Google Patents
Planet carrier of automatic transmission of automobile Download PDFInfo
- Publication number
- CN213871067U CN213871067U CN202022782079.1U CN202022782079U CN213871067U CN 213871067 U CN213871067 U CN 213871067U CN 202022782079 U CN202022782079 U CN 202022782079U CN 213871067 U CN213871067 U CN 213871067U
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- Prior art keywords
- flange
- planet carrier
- automatic transmission
- holes
- bracket
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 238000003466 welding Methods 0.000 claims abstract description 18
- 239000000843 powder Substances 0.000 claims description 7
- 238000005219 brazing Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000005245 sintering Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
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Abstract
The utility model discloses an automobile automatic gearbox planet carrier. Comprises a bracket and a flange; connecting columns are uniformly arranged on the bracket, and the bracket and the flange are welded and fixed through the connecting columns; a boss column of a hollow structure extending towards the support is arranged in the middle of the flange; an internal spline surrounding the boss column is arranged in the boss column; the flange is provided with a first fixed edge hole and a second fixed edge hole, and the first fixed edge hole and the second fixed edge hole are in one-to-one correspondence. The planet carrier of the automatic transmission of the automobile adopts a split structure, has simple and reliable structure, convenient assembly, high precision size, high strength of the internal spline and firm welding, and meets the use performance requirement of the automatic transmission; the utility model discloses an automobile automatic gearbox planet carrier carries out fixed connection with support and flange through the brazed technology of sintering, convenient assembling, connects reliable and stable.
Description
Technical Field
The utility model relates to a field is made to automobile automatic gearbox spare part, concretely relates to automobile automatic gearbox planet carrier.
Background
The planet carrier of the automatic transmission of the automobile is a key part in automobile production and consists of two disc type parts, namely a bracket and a flange, wherein the front end of the bracket is provided with a plurality of uniformly distributed connecting columns, and the center of the flange is a BOSS cylinder with an internal spline through hole. Automotive automatic transmission planetary carriers are generally produced in two ways: (1) the complex forging machine processing technology is matched with the laser welding process for manufacturing, and the method needs to carry out multiple turning processing, so that the production process is complex, the processing efficiency is low, the production cost is high, and the method is not suitable for mass production. (2) The powder metallurgy forming, the product defect is serious and mass production can not be realized: the claw part at the joint of the connecting column and the bracket is cracked, the flatness of a product after sintering is poor, the precision cannot meet the technical requirements, the pulling-out force of the connection of the flange and the bracket is insufficient, and the strength of the tooth part of the internal spline cannot meet the use requirements.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automobile automatic gearbox planet carrier, its simple structure is reliable, convenient assembling has the high accuracy size, and internal spline high strength, firm welding satisfy automatic gearbox performance demand.
The utility model discloses a realize through following technical scheme:
the planet carrier of the automatic transmission of the automobile is characterized by comprising a bracket and a flange; a plurality of connecting columns are uniformly arranged on the bracket, and the bracket and the flange are welded and fixed through the connecting columns; a boss column extending towards the support is arranged in the middle of the flange, and the boss column is of a hollow structure; an internal spline surrounding the boss column is arranged in the boss column; the flange is provided with a plurality of first fixed side holes uniformly, a plurality of second fixed side holes uniformly, and the first fixed side holes correspond to the second fixed side holes one to one. Specifically, the utility model discloses an automobile automatic gearbox planet carrier includes welded fastening's support and flange, the support with what the flange adopted is split type structure, its simple structure, and with low costs. Specifically, the front end of support is equipped with the spliced pole, be equipped with on the web of flange with the corresponding welding concave surface of spliced pole on the support, the welding concave surface follow the web of flange is outer along even interval setting, the welding concave surface shape with the spliced pole is unanimous, the support passes through the spliced pole with the cooperation of welding concave surface with flange welded fastening is in the same place. The utility model discloses a planet carrier structure is reliable, convenient assembling, with low costs, and internal spline high strength, firm welding satisfy automatic gearbox performance demand.
Further, the bracket and the flange are both formed by pressing metal powder.
Furthermore, welding holes are formed in the connecting positions of the flanges and the connecting columns; the connecting column is fixedly connected with the flange in a brazing mode. Specifically, the welding flux is put into the welding hole, and the two parts are welded and fixed by utilizing the fusion and infiltration effect between the welding flux powder and the two part powder, so that the planet carrier of the automatic transmission of the automobile is obtained.
Furthermore, a plurality of air holes are uniformly formed in the circumferential direction of the boss column.
Furthermore, the connecting columns are uniformly provided with 3 connecting columns; the number of the first fixed side holes and the number of the second fixed side holes are 3, and the first fixed side holes and the second fixed side holes are respectively and uniformly distributed on the bracket and the flange; the first fixing side hole and the second fixing side hole are both formed by a round hole and a key groove which protrudes outwards along the two ends of the diameter of the round hole.
Furthermore, the size of one end of the connecting column, which is far away from the bracket, is larger than the size of the end connected with the bracket, and the side surfaces of the connecting column are all arc-shaped surfaces.
The utility model has the advantages that:
the planet carrier of the automatic transmission of the automobile has simple and reliable structure, convenient assembly, high precision size, high strength of the internal spline and firm welding, and meets the use performance requirement of the automatic transmission; just the utility model discloses an automobile automatic gearbox planet carrier adopts split type structure, decomposes into 2 independent powder metallurgy parts of support and flange with the gearbox planet carrier and takes shape alone, then carries out fixed connection, convenient assembling, and connects reliable and stable through the brazed technology of sintering with support and flange.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a front view of a planetary carrier of an automatic transmission of an automobile according to the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a schematic structural diagram of the planetary carrier of the automatic transmission of the present invention.
In the figure: 1 support, 2 flanges, 3 spliced poles, 4boss post, 5 internal splines, 6 first fixed limit holes, 7 second fixed limit holes, 8 welding holes, 9 gas pockets.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
A planet carrier of an automatic transmission of an automobile comprises a bracket 1 and a flange 2; the support 1 is uniformly provided with 3 connecting columns 3, and the support 1 and the flange 2 are welded and fixed through the connecting columns 3; a boss column 4 extending towards the support 1 is arranged in the middle of the flange 2, and the boss column 4 is of a hollow structure; the boss column 4 is internally provided with an internal spline 5 surrounding the circumference of the boss column; the support 1 is evenly provided with 3 first fixed limit holes 6, the flange 2 is evenly provided with 3 second fixed limit holes 7, the first fixed limit holes 6 and the second fixed limit holes 7 correspond to each other one by one.
Preferably, the bracket 1 and the flange 2 are both formed by pressing metal powder; a welding hole 8 is formed in the joint of the flange 2 and the connecting column 3 (solder is put into the welding hole, and the two parts are welded and fixed through the fusion and infiltration between the solder powder and the powder of the two parts, so that the planet carrier of the automatic transmission of the automobile is obtained); the connecting column 3 is fixedly connected with the flange 2 in a brazing mode; a plurality of air holes 9 are uniformly formed in the circumferential direction of the boss column 4; the first fixing side hole 6 and the second fixing side hole 7 are both formed by circular holes and key grooves which protrude outwards along the two ends of the diameter of the circular holes; the size of one end of the connecting column 3, which is far away from the bracket 1, is larger than the size of the connecting end with the bracket 1, and the side surface of the connecting column 3 is an arc-shaped surface.
The utility model discloses a planet carrier structure is reliable, convenient assembling, with low costs, and internal spline high strength, firm welding satisfy automatic gearbox performance demand.
The above is that the preferred embodiment of the present invention is only used for explaining the present invention, and is not used for limiting the present invention. All obvious changes or variations led by the technical proposal of the utility model are still within the protection scope of the utility model.
Claims (6)
1. The planet carrier of the automatic transmission of the automobile is characterized by comprising a bracket (1) and a flange (2); a plurality of connecting columns (3) are uniformly arranged on the bracket (1), and the bracket (1) and the flange (2) are welded and fixed through the connecting columns (3); a boss column (4) extending towards the support (1) is arranged in the middle of the flange (2), and the boss column (4) is of a hollow structure; an internal spline (5) surrounding the circumference of the boss column (4) is arranged in the boss column; the flange is characterized in that a plurality of first fixed edge holes (6) are formed in the support (1), a plurality of second fixed edge holes (7) are formed in the flange (2), and the first fixed edge holes (6) correspond to the second fixed edge holes (7) one to one.
2. An automotive automatic transmission planet carrier according to claim 1, characterized in that the carrier (1) and the flange (2) are both pressed from metal powder.
3. The automotive automatic transmission planet carrier according to claim 1, characterized in that the flange (2) is provided with a welding hole (8) at the connection with the connecting column (3); the connecting column (3) is fixedly connected with the flange (2) in a brazing mode.
4. The planetary carrier of the automatic transmission of the automobile according to claim 1, wherein the boss columns (4) are uniformly provided with a plurality of air holes (9) in the circumferential direction.
5. The automotive automatic transmission planet carrier according to claim 1, characterized in that the connecting columns (3) are uniformly provided with 3; the number of the first fixed side holes (6) and the number of the second fixed side holes (7) are 3, and the first fixed side holes and the second fixed side holes are respectively and uniformly distributed on the bracket (1) and the flange (2); the first fixing side hole (6) and the second fixing side hole (7) are formed by round holes and key grooves which protrude outwards along the two ends of the diameter of the round holes.
6. The planet carrier of the automatic transmission of the automobile according to claim 1, characterized in that the connecting column (3) is larger in size at the end far away from the support (1) than at the end connected with the support (1), and the side surface of the connecting column (3) is an arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022782079.1U CN213871067U (en) | 2020-11-26 | 2020-11-26 | Planet carrier of automatic transmission of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022782079.1U CN213871067U (en) | 2020-11-26 | 2020-11-26 | Planet carrier of automatic transmission of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213871067U true CN213871067U (en) | 2021-08-03 |
Family
ID=77039790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022782079.1U Active CN213871067U (en) | 2020-11-26 | 2020-11-26 | Planet carrier of automatic transmission of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213871067U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460247A (en) * | 2020-11-26 | 2021-03-09 | 江苏智造新材有限公司 | Planetary carrier of automatic transmission of automobile and preparation method thereof |
-
2020
- 2020-11-26 CN CN202022782079.1U patent/CN213871067U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460247A (en) * | 2020-11-26 | 2021-03-09 | 江苏智造新材有限公司 | Planetary carrier of automatic transmission of automobile and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A planetary carrier for automotive automatic transmission Effective date of registration: 20231007 Granted publication date: 20210803 Pledgee: Jiangyan Jiangsu rural commercial bank Limited by Share Ltd. Pledgor: JIANGSU ZHIZAO NEW MATERIAL CO.,LTD. Registration number: Y2023980060083 |