CN214578273U - Output shaft with internal spline - Google Patents
Output shaft with internal spline Download PDFInfo
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- CN214578273U CN214578273U CN202120951544.1U CN202120951544U CN214578273U CN 214578273 U CN214578273 U CN 214578273U CN 202120951544 U CN202120951544 U CN 202120951544U CN 214578273 U CN214578273 U CN 214578273U
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- conical surface
- main shaft
- hole
- output shaft
- shaft portion
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Abstract
The utility model belongs to the technical field of auto-parts, especially, relate to an output shaft of in-band spline. It has solved the unreasonable technical problem of prior art design. An output shaft with an internal spline comprises a main shaft part which is cylindrical; a connecting shaft portion connected to one end of the main shaft portion; the connecting hole is arranged at the axial center of the connecting shaft part, and one end of the connecting hole, which is far away from the main shaft part, is communicated with the outside; an end conical surface provided at an end of the connecting shaft portion away from the main shaft portion; the inner conical surface is arranged on the outer side of the hole bottom of the connecting hole, and the end conical surface and the inner conical surface are distributed in parallel; the inner spline is arranged on the wall of the connecting hole; and the bottom plane is arranged at the center of the bottom of the connecting hole, and the inner conical surface is connected with the bottom plane. The utility model has the advantages that: the end conical surface and the inner conical surface play a role in avoiding, so that the processing efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of auto-parts, especially, relate to an output shaft of in-band spline.
Background
The output shaft of the speed reducer can realize power output.
The structure of the output shaft of the existing speed reducer is not beneficial to processing the inner spline hole, the main reason is that the two ends of the existing inner spline hole can not avoid the spline slotting tool, the qualification rate is low, the production cost is increased,
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem, provide an output shaft of in-band spline that can solve above-mentioned technical problem.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
an internally splined output shaft comprising:
a main shaft portion having a cylindrical shape;
a connecting shaft portion connected to one end of the main shaft portion;
the connecting hole is arranged at the axial center of the connecting shaft part, and one end of the connecting hole, which is far away from the main shaft part, is communicated with the outside;
an end conical surface provided at an end of the connecting shaft portion away from the main shaft portion;
the inner conical surface is arranged on the outer side of the hole bottom of the connecting hole, and the end conical surface and the inner conical surface are distributed in parallel;
the inner spline is arranged on the wall of the connecting hole;
and the bottom plane is arranged at the center of the bottom of the connecting hole, and the inner conical surface is connected with the bottom plane.
In the above output shaft with an internal spline, a semi-circular groove is formed on the conical surface of the end part.
In the above-described output shaft with an internal spline, the axis of the main shaft portion coincides with the axis of the connecting shaft portion.
In the above-described output shaft with an internal spline, the outer diameter of the main shaft portion is smaller than the outer diameter of the connecting shaft portion.
In the above output shaft with an internal spline, the outer wall of the main shaft portion near one end of the connecting shaft portion is connected with the connecting shaft portion through a circular conical surface.
In the above output shaft with an internal spline, a thimble positioning hole is formed in an axial center of one end of the main shaft portion, which is far away from the connecting shaft portion.
Compared with the prior art, the utility model has the advantages of:
the thimble locating hole is down cooperated with the vertical thimble, and the connecting shaft part at the upper side is clasped by the chuck, so that the spline machining precision is improved.
When the machining is in place, the end conical surface and the inner conical surface play a role of avoiding, so that the machining efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram provided by the present invention.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
In the figure, the main shaft portion 10, the pin positioning hole 100, the connecting shaft portion 20, the connecting hole 200, the end portion conical surface 201, the inner conical surface 202, the bottom plane 203, the semicircular groove 204, the internal spline 30, and the annular conical surface 40.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1-2, an internally splined output shaft includes a main shaft portion 10 that is cylindrical in shape.
The connecting shaft 20 is connected to one end of the main shaft 10. Preferably, the main shaft portion 10 of the present embodiment has an outer diameter smaller than that of the connecting shaft portion 20.
Preferably, the main shaft portion 10 and the connecting shaft portion 20 of the present embodiment are integrally joined, for example, by forging.
Next, the axis of the main shaft 10 coincides with the axis of the connecting shaft 20. To ensure coaxial machining and final machining accuracy.
The outer wall of the connecting shaft 20 is a cylindrical surface, and an ejector pin positioning hole 100 is provided at an axial center of an end of the main shaft 10 away from the connecting shaft 20, and an axial line of the ejector pin positioning hole 100 coincides with an axial line of the cylindrical surface.
During spline machining, the thimble positioning hole 100 is used for positioning the thimble, and the cylindrical surface is designed to position the end part and clamp and fix the connecting shaft part 20 during inner spline machining, so as to improve machining precision.
And a connection hole 200 provided at an axial center of the connection shaft portion 20 and having one end of the connection hole 200 away from the main shaft portion 10 communicating with the outside.
The end conical surface 201 is provided at one end of the connecting shaft 20 away from the main shaft 10. It plays the spline sword and dodges the effect.
And an inner conical surface 202 disposed outside the bottom of the connection hole 200, wherein the end conical surface 201 and the inner conical surface 202 are arranged in parallel. It plays the spline sword and dodges the effect.
And the internal spline 30 is arranged on the wall of the connecting hole 200.
And a bottom plane 203 disposed at the center of the hole bottom of the coupling hole 200 and the inner conical surface 202 coupled with the bottom plane 203. The design of the bottom surface 203 may facilitate the forging process. While the design of the internal conical surface 202 may also facilitate the forging process.
Preferably, a semi-circular groove 204 is provided on the end conical surface 201. The semi-circular groove 204 cooperates with a corrective lug on the spline knife to ensure that the spline knife is axially centered in the connection hole 200 when the spline knife is inserted into position.
The outer wall of the main shaft 10 near the one end of the connecting shaft 20 is connected to the connecting shaft 20 by an annular tapered surface 40.
When the internal spline is machined, the thimble positioning hole 100 faces downward to be matched with a vertical thimble, the connecting shaft part 20 on the upper side is clasped by a chuck, the upper end of the connecting hole 200 at the moment is communicated with the outside, and then the spline slotting tool is inserted into the connecting hole 200 downward to perform spline machining on the connecting hole 200.
The end conical surface 201 and the inner conical surface 202 act as relief when machined into place.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. The utility model provides an output shaft of in-band spline which characterized in that, this output shaft includes:
a main shaft portion (10) having a cylindrical shape;
a connecting shaft section (20) connected to one end of the main shaft section (10);
a connection hole (200) which is provided at the axial center of the connection shaft portion (20) and in which one end of the connection hole (200) remote from the main shaft portion (10) communicates with the outside;
an end conical surface (201) provided at one end of the connecting shaft (20) away from the main shaft (10);
the inner conical surface (202) is arranged outside the hole bottom of the connecting hole (200), and the end conical surface (201) and the inner conical surface (202) are distributed in parallel;
the inner spline (30) is arranged on the wall of the connecting hole (200);
and a bottom plane (203) which is provided at the center of the hole bottom of the connection hole (200) and to which the inner conical surface (202) is connected.
2. An output shaft with internal splines according to claim 1, characterized in that said end conical surface (201) is provided with a semi-circular groove (204).
3. An internally splined output shaft according to claim 1, wherein the axis of the main shaft part (10) and the axis of the connecting shaft part (20) coincide.
4. An internally splined output shaft according to claim 1, wherein the main shaft part (10) has an outer diameter smaller than the outer diameter of the connecting shaft part (20).
5. An internally splined output shaft according to claim 4, wherein the outer wall of the main shaft part (10) at the end close to the connecting shaft part (20) is connected to the connecting shaft part (20) by means of a conical surface (40).
6. An output shaft with an internal spline according to claim 1, wherein an end of the main shaft portion (10) remote from the connecting shaft portion (20) is provided with a pin positioning hole (100) at an axial center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120951544.1U CN214578273U (en) | 2021-05-06 | 2021-05-06 | Output shaft with internal spline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120951544.1U CN214578273U (en) | 2021-05-06 | 2021-05-06 | Output shaft with internal spline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214578273U true CN214578273U (en) | 2021-11-02 |
Family
ID=78328969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120951544.1U Active CN214578273U (en) | 2021-05-06 | 2021-05-06 | Output shaft with internal spline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214578273U (en) |
-
2021
- 2021-05-06 CN CN202120951544.1U patent/CN214578273U/en active Active
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