CN216554905U - External spline shaft - Google Patents
External spline shaft Download PDFInfo
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- CN216554905U CN216554905U CN202122706864.3U CN202122706864U CN216554905U CN 216554905 U CN216554905 U CN 216554905U CN 202122706864 U CN202122706864 U CN 202122706864U CN 216554905 U CN216554905 U CN 216554905U
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- spline shaft
- oil
- storage cavity
- grooves
- plug
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Abstract
The utility model discloses an external spline shaft which comprises a connecting shaft and a spline shaft body, wherein one end of the spline shaft body is fixedly connected with the connecting shaft, and spline teeth are arranged on the periphery of the other end of the spline shaft body; the spline body is internally provided with an oil storage cavity, two through grooves and an annular guide pipe, the two through grooves are respectively arranged at two sides of the oil storage cavity, the through grooves are communicated with the oil storage cavity based on a first connecting hole, and the through grooves are communicated with the annular guide pipe based on a second connecting hole; a plug and a spring are arranged in the through groove, one end of the spring is fixedly connected with the plug, the other end of the spring is fixedly connected with the inner wall of the through groove, and the plug is sleeved in the first connecting hole; the periphery of the spline shaft body is provided with more than two oil guide holes, and the oil guide holes are communicated with the annular guide pipe. The utility model provides an external spline shaft, wherein an oil storage cavity is arranged in the spline shaft and is used for storing lubricating oil, and the lubricating oil stored in the oil storage cavity is output by the oil storage cavity through an oil guide hole to supplement the lubricating oil, so that the lubricating performance of the spline shaft is ensured.
Description
Technical Field
The utility model relates to the field of spline shaft structures. In particular to an external spline shaft.
Background
As is well known, a spline shaft with good lubricating property is an auxiliary device which is used for transmitting mechanical torque in the mechanical transmission process so as to enable a machine to run better, and is widely used in the technical field of spline shafts; when the existing spline shaft with good lubricating property is used, the shaft body is connected into corresponding mechanical equipment to transmit mechanical torque; however, in the use of the existing spline shaft with good lubricating property, the spline shaft is found to have poor lubricating property and be easy to wear in the process of transmitting mechanical torque, so that lubricating oil is often required to be coated on the spline shaft to improve the lubricating property of the spline shaft, but the lubricating oil is less in adding amount, the lubricating time is short, and the lubricating oil needs to be added by fussy disassembly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides the external spline shaft, wherein an oil storage cavity is formed in the spline shaft and used for storing lubricating oil, the spline shaft consumes the lubricating oil due to heat generated by friction when the spline shaft rotates, and the lubricating oil stored in the oil storage cavity is output through an oil guide hole to supplement the lubricating oil so as to ensure the lubricating performance of the spline shaft.
In order to solve the technical problem, an embodiment of the utility model provides an external spline shaft, which comprises a connecting shaft and a spline shaft body, wherein one end of the spline shaft body is fixedly connected with the connecting shaft, and spline teeth are arranged on the periphery of the other end of the spline shaft body;
an oil storage cavity, two through grooves and an annular guide pipe are arranged in the spline body, the two through grooves are respectively arranged on two sides of the oil storage cavity, the through grooves are communicated with the oil storage cavity based on a first connecting hole, and the through grooves are communicated with the annular guide pipe based on a second connecting hole;
a plug and a spring are arranged in the through groove, one end of the spring is fixedly connected with the plug, the other end of the spring is fixedly connected with the inner wall of the through groove, and the plug is sleeved with the first connecting hole;
the periphery of the spline shaft body is provided with more than two oil guide holes, and the oil guide holes are communicated with the annular guide pipe.
In the preferable scheme of the utility model, the connecting shaft is provided with an oil filling hole, and the oil guide hole is communicated with the oil storage cavity.
In the preferable scheme of the utility model, the connecting shaft is provided with a sealing plug, and the sealing plug is in interference fit with the oil filling hole.
According to the preferable scheme, the guide hole is provided with a ball clamping groove on the periphery of the spline body, and the ball clamping groove is provided with balls.
According to the preferable scheme, the spline shaft body is provided with oil guide grooves along the circumferential direction, and the oil guide grooves are connected with all the required pipelines.
According to the preferable scheme of the utility model, the external spline shaft is made of a chromium material.
According to the preferable scheme of the utility model, the plug is a combination of a circular truncated cone and a cylinder, and the circular truncated cone is made of rubber materials.
According to the external spline shaft provided by the utility model, the oil storage cavity is formed in the spline shaft to store lubricating oil, when the spline shaft rotates, the spline shaft consumes the lubricating oil due to heat generated by friction, and the lubricating oil stored in the oil storage cavity is output by the oil guide hole to supplement the lubricating oil, so that the lubricating performance of the spline shaft is ensured; the oil storage cavity can store lubricating oil, so that the lubricating time is prolonged, and the convenience is good; the oil filler point is located the connecting axle, and when external spline shaft and internal spline shaft cooperate, the integral key shaft body inserts internal spline shaft, and the connecting axle is outside, and the oil filler point can conveniently add lubricating oil, supplyes the lubricating oil of holding the intracavity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the male spline shaft of the present invention.
FIG. 2 is a schematic sectional view of the male spline shaft of the present invention.
FIG. 3 is a schematic structural view of the male spline shaft A in the utility model.
FIG. 4 is a schematic view of the structure of the ring conduit of the present invention.
The labels in the figure are: 10-spline shaft body, 11-spline teeth, 12-oil guide groove, 13-oil guide hole, 131-ball, 14-oil storage cavity, 141-first connecting hole, 15-through groove, 151-plug, 152-spring, 16-annular conduit, 161-second connecting hole, 20-connecting shaft and 21-oil injection hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Fig. 1 is a schematic view showing the structure of an external spline shaft according to the present invention, fig. 2 is a schematic view showing the cross-sectional structure of the external spline shaft according to the present invention, fig. 3 is a schematic view showing the structure of an external spline shaft a according to the present invention, fig. 4 is a schematic view showing the structure of an annular duct according to the present invention, the external spline shaft includes a connecting shaft 20 and a spline shaft body 10, one end of the spline shaft body 10 is fixedly connected to the connecting shaft 20, and spline teeth 11 are provided on the outer periphery of the other end of the spline shaft body 10; an oil storage cavity 14, two through grooves 15 and an annular guide pipe 16 are formed in the spline body, the two through grooves 15 are respectively arranged on two sides of the oil storage cavity 14, the through grooves 15 are communicated with the oil storage cavity 14 based on a first connecting hole 141, and the through grooves 15 are communicated with the annular guide pipe 16 based on a second connecting hole 162. The oil storage cavity 14 is used for storing lubricating oil, the lubricating oil is conveyed to the through grooves 15 through the first connecting holes 141 in the oil storage cavity 14, then the lubricating oil is conveyed to the annular guide pipe 16 through the through grooves 15, the two through grooves 15 are located on two corresponding sides of the oil storage cavity 14 and conveyed into the annular guide pipe 16 from the two sides, and therefore the lubricating oil is conveyed more uniformly.
A plug 151 and a spring 152 are arranged in the through groove 15, one end of the spring 152 is fixedly connected with the plug 151, the other end of the spring 152 is fixedly connected with the inner wall of the through groove 15, and the plug 151 is sleeved with the first connecting hole 141. The spring 152 is compressed in the through groove 15, the plug 151 blocks the first connecting hole 141 under the elastic force of the spring 152, leakage of the oil storage chamber 14 is prevented, but the spring 152 can be compressed again, that is, the spring 152 is in an incomplete compression state when the external spline shaft is static, when the external spline shaft rotates, the plug 151 is separated from the first connecting hole 141 due to the action of centripetal force, the lubricating oil in the oil storage tank is conveyed to the through groove 15 through the first connecting hole 141, and when the external spline shaft stops rotating, the spring 152 provides acting force for the plug 151, so that the plug 151 blocks the first connecting hole 141.
The spline shaft body 10 is provided with more than two oil guide holes 13 on the periphery, and the oil guide holes 13 are communicated with the annular guide pipe 16. The four oil guide holes 13 are uniformly distributed at four positions of the shaft, namely, 0 degree, 90 degrees, 180 degrees and 270 degrees of the shaft section, and the two second connecting holes 162 are respectively positioned at 135 degrees and 305 degrees of the shaft section, so that the distance from the lubricating oil to each oil guide hole 13 is the same. The lubricating oil in the ring conduit 16 flows out to the periphery of the spline shaft body through the oil guide hole 13 to lubricate the spline shaft, and the number of lubricating oil in the newspaper spline shaft body 10 supplements the lubricating oil consumed by friction heating.
The connecting shaft 20 is provided with an oil filling hole 21, and the oil guide hole 13 is communicated with the oil storage chamber 14. The connecting shaft 20 is provided with a sealing plug which is in interference fit with the oil filling hole 21. The sealing plug may be made of rubber material, and may be a cylindrical plug having a larger middle than both ends, so that the cylindrical plug can better seal the oil hole 21 and prevent the lubricating oil in the oil reservoir chamber 14 from leaking out through the oil hole 21. The oil filler point 21 is located on the connecting shaft 20, when the external spline shaft is matched with the internal spline shaft, the spline shaft body 10 is inserted into the internal spline shaft, the connecting shaft 20 is outside, and the oil filler point 21 can be used for conveniently adding lubricating oil to supplement the lubricating oil in the oil storage cavity 14.
The guide hole is provided with a ball clamping groove on the periphery of the spline body, and the ball clamping groove is provided with balls 131. The ball 131 can prevent fragments of the spline teeth 11 from entering the oil guide hole 13, so as to prevent the oil guide hole 13 from being blocked and the external spline shaft from losing functions.
The external spline shaft can be made of a chromium material.
According to the external spline shaft provided by the utility model, the oil storage cavity 14 is formed in the spline shaft to store lubricating oil, when the spline shaft rotates, the spline shaft consumes the lubricating oil due to heat generated by friction, and the oil storage cavity outputs the lubricating oil stored in the oil storage cavity 14 through the oil guide hole 13 to supplement the lubricating oil, so that the lubricating performance of the spline shaft is ensured; the oil storage cavity 14 can store lubricating oil, prolongs the lubricating time and has good convenience; the oil filler point 21 is located on the connecting shaft 20, when the external spline shaft is matched with the internal spline shaft, the spline shaft body 10 is inserted into the internal spline shaft, the connecting shaft 20 is outside, and the oil filler point 21 can be used for conveniently adding lubricating oil to supplement the lubricating oil in the oil storage cavity 14.
The above embodiments of the present invention are described in detail, and the principle and the implementation manner of the present invention should be described herein by using specific embodiments, and the above description of the embodiments is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (7)
1. The external spline shaft is characterized by comprising a connecting shaft and a spline shaft body, wherein one end of the spline shaft body is fixedly connected with the connecting shaft, and spline teeth are arranged on the periphery of the other end of the spline shaft body;
an oil storage cavity, two through grooves and an annular guide pipe are arranged in the spline body, the two through grooves are respectively arranged on two sides of the oil storage cavity, the through grooves are communicated with the oil storage cavity based on a first connecting hole, and the through grooves are communicated with the annular guide pipe based on a second connecting hole;
a plug and a spring are arranged in the through groove, one end of the spring is fixedly connected with the plug, the other end of the spring is fixedly connected with the inner wall of the through groove, and the plug is sleeved in the first connecting hole;
the periphery of the spline shaft body is provided with more than two oil guide holes, and the oil guide holes are communicated with the annular guide pipe.
2. The external spline shaft according to claim 1, wherein the connecting shaft is provided with an oil filling hole, and the oil guide hole communicates with the oil reservoir chamber.
3. The male spline shaft according to claim 2, wherein the connecting shaft is provided with a sealing plug which is in interference fit with the oil filling hole.
4. The male spline shaft according to claim 1, wherein the oil guide hole is provided with a ball catching groove provided with balls on an outer periphery of the spline body.
5. The male spline shaft according to claim 1, wherein the spline shaft body is provided with oil guide grooves in the circumferential direction, and the oil guide grooves are connected with all the pipes.
6. The male spline shaft of claim 1, wherein the male spline shaft is made of a chrome material.
7. The male spline shaft of claim 1, wherein the plug is a combination of a circular truncated cone and a cylinder, and the circular truncated cone is made of a rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122706864.3U CN216554905U (en) | 2021-11-05 | 2021-11-05 | External spline shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122706864.3U CN216554905U (en) | 2021-11-05 | 2021-11-05 | External spline shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216554905U true CN216554905U (en) | 2022-05-17 |
Family
ID=81572182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122706864.3U Active CN216554905U (en) | 2021-11-05 | 2021-11-05 | External spline shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216554905U (en) |
-
2021
- 2021-11-05 CN CN202122706864.3U patent/CN216554905U/en active Active
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