CN215634338U - Multi-step high-precision planetary wheel shaft - Google Patents
Multi-step high-precision planetary wheel shaft Download PDFInfo
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- CN215634338U CN215634338U CN202122183140.5U CN202122183140U CN215634338U CN 215634338 U CN215634338 U CN 215634338U CN 202122183140 U CN202122183140 U CN 202122183140U CN 215634338 U CN215634338 U CN 215634338U
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Abstract
The utility model relates to a multi-step high-precision planetary wheel shaft which comprises a first shaft section, a second shaft section and a third shaft section which are integrally formed, wherein the first shaft section, the second shaft section and the third shaft section are coaxially arranged; the diameters of the first shaft section, the second shaft section and the third shaft section are reduced in sequence; a first annular groove is formed in the outer wall of one end, away from the second shaft section, of the first shaft section, a first annular step and a second annular step are sequentially formed in the outer wall of one end, close to the second shaft section, of the first shaft section, and a first oil groove is formed between the outer wall of the second shaft section and the end face of the first shaft section; a second annular groove is formed in the middle of the outer wall of the third shaft section, a second oil groove is formed between the outer wall of the third shaft section and the end face of the second shaft section, a platform is axially formed in the outer wall of the third shaft section, and the multi-step diameter of the planetary gear shaft can be matched with a plurality of reduction gears, so that the planetary gear shaft has good mechanical performance through surface heat treatment.
Description
The technical field is as follows:
the utility model relates to the technical field of planetary wheel shafts, in particular to a multi-step high-precision planetary wheel shaft.
Background art:
the planet wheel shaft is used in a primary speed reducing structure of a planetary reducer, is generally arranged in a central shaft hole of a planet wheel, or is used as a part of a planetary gear train in the planetary reducer, and the assembly acts on the planetary gear train in the planetary reducer and is used for limiting the axial movement of the planet wheel. The external diameter of planet wheel axle and the rotatory flexibility of planet wheel are decisive effect to planetary gear train, so the planet wheel axle has decisive effect to planetary reducer's performance, because the use operating mode of planet gear axle is comparatively abominable, for guaranteeing its running accuracy, security and life, must guarantee that the planet gear axle has higher wearability, corrosion resistance, intensity and toughness to can obtain good lubrication, still will reach the purpose of automatic transmission planetary reduction subassembly structure.
The utility model has the following contents:
aiming at the problems, the utility model provides the multi-step high-precision planetary wheel shaft which can be matched with a plurality of reduction gears and has compact structure, high strength and long service life.
The utility model is realized by the following technical scheme:
a multi-step high-precision planet wheel shaft comprises a first shaft section, a second shaft section and a third shaft section which are integrally formed, wherein the first shaft section, the second shaft section and the third shaft section are coaxially arranged; the diameters of the first shaft section, the second shaft section and the third shaft section are reduced in sequence; the outer wall of one end, far away from the second shaft section, of the first shaft section is provided with a first annular groove, the outer wall of one end, near the second shaft section, of the first shaft section is provided with a first annular step and a second annular step in sequence, the diameter of the first annular step is larger than that of the second annular step, and the diameter of the second annular step is larger than that of the second shaft section; a first oil groove is formed between the outer wall of the second shaft section and the end face of the first shaft section; a second annular groove is formed in the middle of the outer wall of the third shaft section, a second oil groove is formed between the outer wall of the third shaft section and the end face of the second shaft section, and a platform is axially formed in the outer wall of the third shaft section.
In order to enable the shaft neck to have a good lubricating effect, the first oil groove and the second oil groove are arc-shaped grooves.
In order to enhance the mechanical property of the shaft, the outer circumferential surface of the planet wheel shaft body is subjected to high-frequency quenching and tempering treatment.
The utility model has the beneficial effects that: the multiple step diameter of the planet gear shaft can be matched with a plurality of reduction gears, so that the planet gear shaft has good mechanical performance through surface heat treatment; the utility model has simple and compact structure, easy operation and higher precision, replaces similar imported products and reduces the manufacturing cost.
Description of the drawings:
FIG. 1 is a schematic perspective view of a multi-step high-precision planetary gear shaft of the present invention;
FIG. 2 is a schematic plane structure diagram of the multi-step high-precision planetary gear shaft.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model more readily understood by those skilled in the art, and thus will more clearly and distinctly define the scope of the utility model.
The multi-step high-precision planet wheel shaft shown in fig. 1 and 2 comprises a first shaft section 1, a second shaft section 2 and a third shaft section 3 which are integrally formed, wherein the first shaft section 1, the second shaft section 2 and the third shaft section 3 are coaxially arranged; the diameters of the first shaft section 1, the second shaft section 2 and the third shaft section 3 are reduced in sequence;
a first annular groove 11 is formed in the outer wall of one end, far away from the second shaft section 2, of the first shaft section 1, a first annular step 12 and a second annular step 13 are sequentially formed in the outer wall of one end, close to the second shaft section 2, of the first shaft section 1, the diameter of the first annular step 12 is larger than that of the second annular step 13, and the diameter of the second annular step 13 is larger than that of the second shaft section 2;
a first oil groove 21 is formed between the outer wall of the second shaft section 2 and the end face of the first shaft section 1;
a second annular groove 31 is formed in the middle of the outer wall of the third shaft section 3, a second oil groove 32 is formed between the outer wall of the third shaft section 3 and the end face of the second shaft section 2, and a platform 33 is axially formed in the outer wall of the third shaft section 3.
The diameter of the outer wall on the left of the first annular groove 11 is slightly larger than the diameter of the outer wall on the right of the first annular groove 11.
The diameter of the outer wall on the left side of the second annular groove 31 is slightly larger than the diameter of the outer wall on the right side of the second annular groove 31.
The first oil groove 21 and the second oil groove 32 are arc grooves.
The outer circumferential surface of the planet wheel shaft body is subjected to high-frequency quenching and tempering treatment.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "side", "end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. The utility model provides a planet wheel axle of many steps high accuracy which characterized in that: the shaft comprises a first shaft section (1), a second shaft section (2) and a third shaft section (3) which are integrally formed, wherein the first shaft section (1), the second shaft section (2) and the third shaft section (3) are coaxially arranged; the diameters of the first shaft section (1), the second shaft section (2) and the third shaft section (3) are reduced in sequence;
a first annular groove (11) is formed in the outer wall of one end, away from the second shaft section (2), of the first shaft section (1), a first annular step (12) and a second annular step (13) are sequentially formed in the outer wall of one end, close to the second shaft section (2), of the first shaft section (1), the diameter of the first annular step (12) is larger than that of the second annular step (13), and the diameter of the second annular step (13) is larger than that of the second shaft section (2);
a first oil groove (21) is formed between the outer wall of the second shaft section (2) and the end face of the first shaft section (1);
a second annular groove (31) is formed in the middle of the outer wall of the third shaft section (3), a second oil groove (32) is formed between the outer wall of the third shaft section (3) and the end face of the second shaft section (2), and a platform (33) is axially formed in the outer wall of the third shaft section (3).
2. The multi-step high-precision planetary wheel shaft according to claim 1, characterized in that: the first oil groove (21) and the second oil groove (32) are arc grooves.
3. The multi-step high-precision planetary wheel shaft according to claim 1, characterized in that: the outer circumferential surface of the planet wheel shaft body is subjected to high-frequency quenching and tempering treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122183140.5U CN215634338U (en) | 2021-09-10 | 2021-09-10 | Multi-step high-precision planetary wheel shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122183140.5U CN215634338U (en) | 2021-09-10 | 2021-09-10 | Multi-step high-precision planetary wheel shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215634338U true CN215634338U (en) | 2022-01-25 |
Family
ID=79914331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122183140.5U Active CN215634338U (en) | 2021-09-10 | 2021-09-10 | Multi-step high-precision planetary wheel shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215634338U (en) |
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2021
- 2021-09-10 CN CN202122183140.5U patent/CN215634338U/en active Active
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