CN210318455U - Powder metallurgy planet carrier for automobile gearbox - Google Patents
Powder metallurgy planet carrier for automobile gearbox Download PDFInfo
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- CN210318455U CN210318455U CN201920817834.XU CN201920817834U CN210318455U CN 210318455 U CN210318455 U CN 210318455U CN 201920817834 U CN201920817834 U CN 201920817834U CN 210318455 U CN210318455 U CN 210318455U
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- support
- powder metallurgy
- connecting column
- planet carrier
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Abstract
The utility model provides a powder metallurgy planet carrier for motor transmission, includes support and flange, its characterized in that: the support and the flange are of a split structure formed by pressing metal powder, a connecting column is arranged at the front end of the support, a welding concave surface corresponding to the connecting column of the support is arranged on a web plate of the flange, and the support is welded and fixed through the matching of the connecting column and the welding concave surface. The utility model discloses simple structure, convenient assembling and with low costs have not only improved production efficiency greatly, but also have effectively reduced part weight.
Description
Technical Field
The utility model belongs to the technical field of powder metallurgy, a powder metallurgy planet carrier for motor transmission is related to.
Background
Powder metallurgy is a process technology for manufacturing metal materials, composites and various types of products by forming and sintering metal or metal powder serving as a raw material, is widely applied to various fields, has unique chemical composition and mechanical and physical properties, cannot be obtained by a traditional casting method, and can be used for manufacturing various powder metallurgy parts such as automobiles, motorcycles, textile machinery, electric tools, hardware tools, electric appliances and the like.
At present, most of planet gear carriers used by automobile gearboxes are steel parts, most of the planet gear carriers adopt a laser welding process, and a plurality of turning processes are needed, so that the manufacturing cost is increased, and the production efficiency is reduced.
According to the examination, the Chinese patent CN201020633440, the prior patent, namely 'a planetary gear speed reducing mechanism and a planetary gear carrier of a micromotor', comprises a sun gear and a bracket, wherein the sun gear is arranged on one side of the bracket, a planetary gear shaft is arranged on the other side of the bracket, and the sun gear and the bracket are of an integrated structure formed by powder metallurgy. The main body of the planet carrier is sintered and formed through powder metallurgy, mechanical processing and combination are not needed, the production efficiency is high, but the planet carrier which is actually used for a micro motor is structurally different from the planet carrier which is used for an automobile gearbox. At present, no report is found about the adoption of powder metallurgy forming for a planetary gear carrier of an automobile gearbox.
Disclosure of Invention
The utility model aims to solve the technical problem that to foretell technical current situation and provide a powder metallurgy planet carrier for motor transmission that the structure is reliable, convenient assembling and with low costs, not only the technology is reliable and stable, has still improved production efficiency.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a powder metallurgy planet carrier for motor transmission, includes support and flange, its characterized in that: the support and the flange are of a split structure formed by pressing metal powder, a connecting column is arranged at the front end of the support, a welding concave surface corresponding to the connecting column of the support is arranged on a web plate of the flange, and the support is welded and fixed through the matching of the connecting column and the welding concave surface.
As an improvement, the bracket is of a square-like structure with a hole in the middle, the number of the connecting columns is four, the four connecting columns are respectively arranged in the middle of the four sides of the front end face of the bracket, and correspondingly, the number of the welding concave faces on the flange is four.
As an improvement, the connecting column is of a fan-shaped column structure with a wide outer end and a narrow inner end, the outer side face and the inner side face of the connecting column are both cambered surfaces, and the outer side face of the connecting column extends out of the outer edge of the support and corresponds to the outer edge of the flange.
Furthermore, the welding concave surfaces are arranged along the outer edge of the web plate of the flange at even intervals, and the shapes of the welding concave surfaces are consistent with those of the connecting columns.
Furthermore, a concave hole for placing solder is formed in the middle of the welding concave surface.
And finally, connecting holes are uniformly formed in the web plate of the flange and on the spacing surface of the welding concave surface.
Compared with the prior art, the utility model has the advantages of: the planet gear carrier is of a split structure and is made by powder metallurgy, so that the structure is simple, and the cost is low; the bracket and the flange are positioned through the position relation of the welding surfaces and connected through a sintering and brazing process, so that the assembly is very convenient, and the connection is stable and reliable. The utility model discloses simple structure, convenient assembling and with low costs have not only improved production efficiency greatly, but also have effectively reduced part weight.
Drawings
FIG. 1 is a sectional view of the embodiment of the present invention;
FIG. 2 is a structural cross-sectional view of the stent of FIG. 1;
FIG. 3 is a perspective view of the stand;
FIG. 4 is a structural cross-sectional view of the flange of FIG. 1;
fig. 5 is a perspective view of the flange.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1 to 5, a powder metallurgy planetary gear carrier for an automobile gearbox comprises a support 1 and a flange 2, wherein the support 1 and the flange 2 are of a split structure formed by pressing metal powder, the support 1 is of a square-like structure with a hole in the middle, a connecting column 11 is arranged at the front end of the support 1, a welding concave surface 21 corresponding to the connecting column 11 of the support 1 is arranged on a web plate of the flange 2, and the support 1 is welded and fixed through the matching of the connecting column 11 and the welding concave surface 21; the number of the connecting columns 11 is four, the connecting columns are respectively arranged in the middle of four sides of the front end face of the bracket 1, and correspondingly, the number of the welding concave surfaces 21 on the flange 2 is four; the spliced pole 11 is outer end width, the narrow fan-shaped post structure of inner end, the lateral surface of spliced pole 11, the inboard side is the cambered surface, and the lateral surface of spliced pole 11 stretches out in support 1 outer along corresponding with flange 2 outer along, welding concave surface 21 sets up along the even interval of flange 2's web outer edge, welding concave surface 21's shape is unanimous with spliced pole 11, be equipped with the shrinkage pool 22 that is used for placing the solder at welding concave surface 21's middle part, on flange 2's web, be located welding concave surface 21's spacing face and evenly seted up connecting hole 23.
The planet gear carrier of the embodiment adopts a split structure and is made by powder metallurgy, so that the structure is simple, and the cost is low; the bracket 1 and the flange 2 are positioned through the position relation of the welding surfaces and connected through a sintering and brazing process, so that the assembly is very convenient, and the connection is stable and reliable.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides a powder metallurgy planet carrier for motor transmission, includes support and flange, its characterized in that: the support and the flange are of a split structure formed by pressing metal powder, a connecting column is arranged at the front end of the support, a welding concave surface corresponding to the connecting column of the support is arranged on a web plate of the flange, and the support is welded and fixed through the matching of the connecting column and the welding concave surface.
2. The powder metallurgy planet carrier for an automobile transmission according to claim 1, characterized in that: the support is of a square-like structure with a hole in the middle, the number of the connecting columns is four, the four connecting columns are respectively arranged in the middle of four sides of the front end face of the support, and correspondingly, the number of the welding concave faces on the flange is four.
3. The powder metallurgy planet carrier for an automobile transmission according to claim 2, characterized in that: the connecting column is of a fan-shaped column structure with a wide outer end and a narrow inner end, the outer side face and the inner side face of the connecting column are both cambered surfaces, and the outer side face of the connecting column extends out of the outer edge of the bracket and corresponds to the outer edge of the flange.
4. The powder metallurgy planet carrier for an automobile transmission according to claim 3, characterized in that: the welding concave surfaces are arranged along the outer edge of the web plate of the flange at even intervals, and the shapes of the welding concave surfaces are consistent with those of the connecting columns.
5. The powder metallurgy planetary carrier for an automobile transmission according to any one of claims 1 to 4, characterized in that: and a concave hole for placing solder is formed in the middle of the welding concave surface.
6. The powder metallurgy planetary carrier for an automobile transmission according to any one of claims 1 to 4, characterized in that: connecting holes are uniformly formed in the web plate of the flange and the spacing surface of the welding concave surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920817834.XU CN210318455U (en) | 2019-05-31 | 2019-05-31 | Powder metallurgy planet carrier for automobile gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920817834.XU CN210318455U (en) | 2019-05-31 | 2019-05-31 | Powder metallurgy planet carrier for automobile gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210318455U true CN210318455U (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920817834.XU Active CN210318455U (en) | 2019-05-31 | 2019-05-31 | Powder metallurgy planet carrier for automobile gearbox |
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| CN (1) | CN210318455U (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 |
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2019
- 2019-05-31 CN CN201920817834.XU patent/CN210318455U/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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