CN210889808U - Spline-connected self-locking limiting structure and gearbox comprising same - Google Patents
Spline-connected self-locking limiting structure and gearbox comprising same Download PDFInfo
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- CN210889808U CN210889808U CN201921734777.5U CN201921734777U CN210889808U CN 210889808 U CN210889808 U CN 210889808U CN 201921734777 U CN201921734777 U CN 201921734777U CN 210889808 U CN210889808 U CN 210889808U
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- spline
- motor shaft
- support body
- rotor support
- chamfer
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Abstract
The utility model discloses a auto-lock limit structure of spline connection and include gearbox of this structure, it includes: a steel wire retainer ring; the motor comprises a motor shaft, wherein the motor shaft comprises a motor shaft body and a motor shaft end part extending from the motor shaft body, and a preset number of internal splines are arranged on the inner wall of the motor shaft end part; the rotor support body comprises a rotor support body and a rotor support body end part extending from the rotor support body, wherein an external spline is arranged on the outer wall of the rotor support body end part; the steel wire retainer ring is firstly assembled in the external spline on the rotor support body, and then the external spline of the rotor support body is fixedly connected with the internal spline of the motor shaft, so that the rotor support body is connected with the motor shaft together.
Description
Technical Field
The utility model relates to a auto-lock limit structure especially relates to a auto-lock limit structure of spline connection and include the gearbox of this structure.
Background
With the continuous development of the automobile industry, hybrid transmissions in automobiles are more and more complex in structure, and the transmission is required to be compact in structure and have good maintainability.
Disclosure of Invention
In view of this, the utility model provides a compact structure, can the auto-lock spacing with simple to operate and have the auto-lock limit structure of spline connection in the hybrid transmission of good maintainability and include the gearbox of this structure.
In order to achieve the above object, the utility model provides a auto-lock limit structure of spline connection part, it includes:
a steel wire retainer ring;
the motor comprises a motor shaft, wherein the motor shaft comprises a motor shaft body and a motor shaft end part extending from the motor shaft body, and a preset number of internal splines are arranged on the inner wall of the motor shaft end part; and
the rotor support comprises a rotor support body and a rotor support body, wherein the rotor support body comprises a rotor support body and a rotor support body end part extending from the rotor support body, and an external spline is arranged on the outer wall of the rotor support body end part;
the steel wire retainer ring is firstly assembled in the external spline on the rotor support body, and then the external spline of the rotor support body is fixedly connected with the internal spline of the motor shaft, so that the rotor support body is connected with the motor shaft together.
Further, the internal spline has outer chamfer, interior chamfer, first snap ring groove and passageway, wherein the passageway certainly outer chamfer extends, interior chamfer certainly the passageway extends, first snap ring groove certainly interior chamfer extends, the internal diameter of first snap ring groove is less than the internal diameter of passageway and 2 times the external diameter sum of steel wire retaining ring.
Further, the external spline of the rotor support body comprises a first spline tooth and a second spline tooth, the first spline tooth and the second spline tooth are opposite to each other, and a second clamping ring groove is arranged between the first spline tooth and the second spline tooth.
Furthermore, a chamfer is arranged on a second key tooth of an external spline at the end part of the rotor support body, the chamfer is connected with the second clamping ring groove channel, and when the hybrid power transmission box is assembled in a box-closing mode, the steel wire check ring is guided and arranged in the second clamping ring groove on the rotor support body through the chamfer, so that the rotor support body and the steel wire check ring are assembled together with the motor shaft.
The utility model also provides a gearbox that includes spline connection's auto-lock limit structure, it includes: the front end cover comprises a front end cover, an input shaft, a motor shaft, a ball bearing, an inner clutch support, a steel wire retaining ring and a rotor support body, wherein the motor shaft and the input shaft are fixedly arranged on the front end cover through the ball bearing, the inner clutch support is fixedly arranged on the input shaft through the ball bearing, the rotor support body is connected with the motor shaft through a spline on one hand, and is fixed on the motor shaft through the steel wire retaining ring and is axially limited through the steel wire retaining ring on the other hand.
Further, the motor shaft comprises a motor shaft body and a motor shaft end part extending from the motor shaft body, wherein the inner wall of the motor shaft end part is provided with a preset number of internal splines; the rotor support body comprises a rotor support body and a rotor support body end part extending from the rotor support body, wherein an external spline is arranged on the outer wall of the rotor support body end part; the steel wire retainer ring is firstly assembled in the external spline on the rotor support body, and then the external spline of the rotor support body is fixedly connected with the internal spline of the motor shaft, so that the rotor support body is connected with the motor shaft together.
Further wherein the inner spline of the motor shaft has an outer chamfer, an inner chamfer, a first snap ring groove, and a channel, wherein the channel extends from the outer chamfer, the inner chamfer extends from the channel, and the first snap ring groove extends from the inner chamfer; the inner diameter of the first clamping ring groove of the inner spline of the motor shaft is smaller than the sum of the inner diameter of the channel of the inner spline of the motor shaft and 2 times of the outer diameter of the steel wire retainer ring.
Further, the external spline of the rotor support body comprises a first key tooth and a second key tooth, the first key tooth and the second key tooth are opposite to each other, and a second clamping ring groove is arranged between the first key tooth and the second key tooth.
Further, a chamfer is arranged on a second key tooth of the external spline at the end part of the rotor support body, the chamfer is connected with the second clamping ring groove channel, and when the hybrid power transmission box is assembled in a box closing mode, the steel wire retainer ring is guided and arranged in the second clamping ring groove on the rotor support body through the chamfer, so that the rotor support body and the steel wire retainer ring are assembled with the motor shaft together.
Drawings
Fig. 1 is a schematic structural view of a transmission including a spline connection self-locking limiting structure according to the present invention;
FIG. 2 is a schematic structural view of a transmission including a spline-coupled self-locking limit structure;
FIG. 3 is a schematic view of a motor shaft in a transmission including a spline-coupled self-locking limit structure;
FIG. 4 is a schematic structural view of a rotor spider body in a transmission including a splined self-locking limit structure;
FIG. 5 is a schematic view of a steel wire retainer ring in a transmission case having a spline-coupled self-locking structure;
fig. 6 is a schematic structural view showing the disassembly of a wire retainer ring in a transmission case comprising a spline connection self-locking structure.
Detailed Description
The technical solution in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
It is to be understood that the described embodiments are merely some embodiments and not all embodiments of the present application, and that the following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application and its applications.
In the present invention, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly and include, for example, fixed connections, detachable connections, or all manner of connections; "coupled" may be direct or indirect through an intermediary. The terms "upper", "lower", and the like indicate orientations or positional relationships based on the manner or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or units must have a specific orientation, be constructed and operated in a specific orientation. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 and 2, a gearbox with a spline-connected self-locking structure includes a front end cover 9, an input shaft 10, a motor shaft 1, a ball bearing 11, a clutch inner bracket 12, a wire retainer ring 2, and a rotor support body 3, wherein the motor shaft 1 and the input shaft 10 are fixedly mounted on the front end cover 9 through the ball bearing 11, the clutch inner bracket 12 is fixedly mounted on the input shaft 10 through the ball bearing 11, and the rotor support body 3 is spline-connected with the motor shaft 1 on one hand, and is fixed on the motor shaft 1 through the wire retainer ring 2 and axially limited through the wire retainer ring 2 on the other hand.
As shown in fig. 3, which shows a schematic structural diagram of a motor shaft in a transmission case having a spline-connected self-locking structure, as can be seen from the figure, the motor shaft 1 includes a motor shaft body 11 and a motor shaft end 12 extending from the motor shaft body 11, wherein a predetermined number of internal splines a are arranged on an inner wall of the motor shaft end 12, the internal splines a have an external chamfer 4, an internal chamfer 5, a first snap ring groove 6 and a channel 7, wherein the channel 7 extends from the external chamfer 4, the internal chamfer 5 extends from the channel 7, the first snap ring groove 6 extends from the internal chamfer 5, and an inner diameter of the first snap ring groove 6 is smaller than a sum of an inner diameter of the channel 7 and 2 times an outer diameter of the wire retaining ring 2.
As shown in fig. 4, which shows a schematic structural view of a rotor spider body in a transmission case including a spline-connected self-locking structure, it can be seen that the rotor spider body 3 includes a rotor spider body 31 and a rotor spider body end 32 extending from the rotor spider body 31, wherein an external spline B is disposed on an outer wall of the rotor spider body end 32, the external spline B includes a first spline tooth 321 and a second spline tooth 322, the first spline tooth 321 is opposite to the second spline tooth 322, and a second snap ring groove 323 is disposed between the first spline tooth 321 and the second spline tooth 322.
Specifically, a chamfer 3221 is arranged on the second spline tooth 322 of the external spline B of the end 32 of the rotor support body 3 of the rotor support body, the chamfer 3221 is in channel connection with the second snap ring groove 323, and when the hybrid transmission box is assembled, the wire retainer ring 2 is guided and assembled into the second snap ring groove 323 on the rotor support body 3 through the chamfer 3221, so that the rotor support body 3 and the wire retainer ring 2 are assembled with the motor shaft 1 together.
The utility model provides a auto-lock limit structure of spline connection part, it includes:
a steel wire retainer ring 2;
the motor comprises a motor shaft 1, wherein the motor shaft 1 comprises a motor shaft body 11 and a motor shaft end part 12 extending from the motor shaft body 11, and a preset number of internal splines A are arranged on the inner wall of the motor shaft end part 12; and
the rotor support body 3 comprises a rotor support body 31 and a rotor support body end 32 extending from the rotor support body 31, wherein an external spline B is arranged on the outer wall of the rotor support body end 32;
the steel wire retainer ring 2 is firstly assembled in an external spline B on the rotor support body 3, and then the external spline B of the rotor support body 3 is fixedly connected with an internal spline A of the motor shaft 1, so that the rotor support body 3 is connected with the motor shaft 1 together.
Specifically, internal spline A has outer chamfer 4, internal chamfer 5, first snap ring groove 6 and passageway 7, wherein passageway 7 certainly outer chamfer 4 extends, internal chamfer 5 certainly passageway 7 extends, first snap ring groove 6 certainly internal chamfer 5 extends, the internal diameter of first snap ring groove 6 is less than the internal diameter of passageway 7 and 2 times the external diameter sum of wire retaining ring 2. Specifically, the external spline B of the rotor holder body 3 includes a first key tooth 321 and a second key tooth 322, the first key tooth 321 and the second key tooth 322 are opposite to each other, and a second snap ring groove 323 is disposed between the first key tooth 321 and the second key tooth 322.
Specifically, a chamfer 3221 is arranged on the second spline tooth 322 of the external spline B of the end 32 of the rotor support body 3 of the rotor support body, the chamfer 3221 is in channel connection with the second snap ring groove 323, and when the hybrid transmission box is assembled, the wire retainer ring 2 is guided and assembled into the second snap ring groove 323 on the rotor support body 3 through the chamfer 3221, so that the rotor support body 3 and the wire retainer ring 2 are assembled with the motor shaft 1 together.
As shown in fig. 5, specifically, when the rotor holder body 3 and the motor shaft 1 are assembled together, the rotor holder body 3 is pressed by force, the outer chamfer 4 on the motor shaft 1 applies pressure to the wire retainer ring 2 mounted on the rotor holder body 3 in advance, and the wire retainer ring 2 is deformed and contracted by force, because the inner diameter of the first snap ring groove 6 is smaller than the sum of the inner diameter of the passage 7 and 2 times of the outer diameter of the wire retainer ring 2, the outer diameter of the wire retainer ring 2 can be contracted to a smaller extent than the step of the passage 7 of the internal spline a of the motor shaft 1, and under the action of external force pressure, the wire retainer ring 2 passes through the passage 7 of the internal spline a of the motor shaft 1, and when the rotor holder body 3 and the wire retainer ring 2 move to the position of the first snap ring groove 6 of the internal spline a of the motor shaft 1, the wire retainer ring 2 springs open, and then the rotor support body 3 is locked, thereby achieving the purpose of self-locking.
As shown in fig. 6, when the transmission needs to be disassembled, the rotor support body 3 is fixed, the motor shaft 1 is pressed in the direction of the rotor support body 3 with force, then the inner chamfer 5 of the inner spline a on the motor shaft 1 compresses the wire retainer ring 2, the wire retainer ring 2 is stressed to contract to an inner diameter smaller than the channel 7 of the inner spline a of the motor shaft 1, then the wire retainer ring 2 penetrates through the channel 7 of the inner spline a of the motor shaft 1, and thus the wire retainer ring 2 is separated from the inner spline a of the motor shaft 1, so that the rotor support body 3 is separated from the motor shaft 1.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A spline-connected self-locking limit structure, comprising:
a steel wire retainer ring;
the motor comprises a motor shaft, wherein the motor shaft comprises a motor shaft body and a motor shaft end part extending from the motor shaft body, and a preset number of internal splines are arranged on the inner wall of the motor shaft end part; and
the rotor support comprises a rotor support body and a rotor support body, wherein the rotor support body comprises a rotor support body and a rotor support body end part extending from the rotor support body, and an external spline is arranged on the outer wall of the rotor support body end part;
the steel wire retainer ring is firstly assembled in the external spline on the rotor support body, and then the external spline of the rotor support body is fixedly connected with the internal spline of the motor shaft, so that the rotor support body is connected with the motor shaft together.
2. A splined self locking limit structure according to claim 1, wherein the internal spline of the motor shaft has an outer chamfer, an inner chamfer, a first snap ring groove, and a channel, wherein the channel extends from the outer chamfer, the inner chamfer extends from the channel, and the first snap ring groove extends from the inner chamfer.
3. The spline-connected self-locking limit structure of claim 2, wherein the inner diameter of the first snap ring groove of the internal spline of the motor shaft is smaller than the sum of the inner diameter of the channel of the internal spline of the motor shaft and 2 times of the outer diameter of the wire retainer ring.
4. The spline-connected self-locking limit structure of claim 1, wherein the external spline of the rotor support body comprises a first spline tooth and a second spline tooth, the first spline tooth and the second spline tooth are opposite to each other, and a second snap ring groove is arranged between the first spline tooth and the second spline tooth.
5. The splined connection self-locking limit structure according to claim 4, wherein a chamfer is arranged on the second spline tooth of the external spline at the end part of the rotor support body, the chamfer is connected with the second snap ring groove channel, when the hybrid power transmission box is assembled, the wire retainer ring is guided and assembled into the second snap ring groove on the rotor support body through the chamfer, and therefore the rotor support body and the wire retainer ring are assembled with the motor shaft together.
6. A gearbox that contains spline connection's auto-lock limit structure, it includes: the front end cover comprises a front end cover, an input shaft, a motor shaft, a ball bearing, an inner clutch support, a steel wire retaining ring and a rotor support body, wherein the motor shaft and the input shaft are fixedly arranged on the front end cover through the ball bearing, the inner clutch support is fixedly arranged on the input shaft through the ball bearing, the rotor support body is connected with the motor shaft through a spline on one hand, and is fixed on the motor shaft through the steel wire retaining ring and is axially limited through the steel wire retaining ring on the other hand.
7. The gearbox including a splined self-locking limit structure according to claim 6, wherein the motor shaft includes a motor shaft body and a motor shaft end extending from the motor shaft body, wherein a predetermined number of internal splines are provided on an inner wall of the motor shaft end; the rotor support body comprises a rotor support body and a rotor support body end part extending from the rotor support body, wherein an external spline is arranged on the outer wall of the rotor support body end part; the steel wire retainer ring is firstly assembled in the external spline on the rotor support body, and then the external spline of the rotor support body is fixedly connected with the internal spline of the motor shaft, so that the rotor support body is connected with the motor shaft together.
8. The transmission including a splined self-locking limit feature of claim 7, wherein the internal spline of the motor shaft has an outer chamfer, an inner chamfer, a first snap ring groove, and a channel, wherein the channel extends from the outer chamfer, the inner chamfer extends from the channel, and the first snap ring groove extends from the inner chamfer; the inner diameter of the first clamping ring groove of the inner spline of the motor shaft is smaller than the sum of the inner diameter of the channel of the inner spline of the motor shaft and 2 times of the outer diameter of the steel wire retainer ring.
9. The gearbox including a splined self-locking limit structure of claim 8, wherein said external spline of said rotor spider body comprises a first spline tooth and a second spline tooth, said first spline tooth and said second spline tooth are opposite to each other, and a second snap ring groove is provided between said first spline tooth and said second spline tooth.
10. The transmission case including a spline-connected self-locking limit structure according to claim 9, wherein a chamfer is provided on the second spline teeth of the external spline at the end of the spider body, the chamfer is connected with the second snap ring groove channel, when the hybrid transmission case is assembled, the wire retainer ring is guided by the chamfer to be assembled into the second snap ring groove on the spider body, so that the spider body and the wire retainer ring are assembled together with the motor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921734777.5U CN210889808U (en) | 2019-10-16 | 2019-10-16 | Spline-connected self-locking limiting structure and gearbox comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921734777.5U CN210889808U (en) | 2019-10-16 | 2019-10-16 | Spline-connected self-locking limiting structure and gearbox comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210889808U true CN210889808U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921734777.5U Active CN210889808U (en) | 2019-10-16 | 2019-10-16 | Spline-connected self-locking limiting structure and gearbox comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210889808U (en) |
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2019
- 2019-10-16 CN CN201921734777.5U patent/CN210889808U/en active Active
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