CN220286240U - Spline shaft with long service life - Google Patents
Spline shaft with long service life Download PDFInfo
- Publication number
- CN220286240U CN220286240U CN202321825459.6U CN202321825459U CN220286240U CN 220286240 U CN220286240 U CN 220286240U CN 202321825459 U CN202321825459 U CN 202321825459U CN 220286240 U CN220286240 U CN 220286240U
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- CN
- China
- Prior art keywords
- oil
- shaft
- spline
- main shaft
- spline shaft
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- 238000003860 storage Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 239000000945 filler Substances 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 66
- 239000010687 lubricating oil Substances 0.000 abstract description 15
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Abstract
The utility model provides a spline shaft with long service life, belongs to the technical field of axles, and solves the problem of severe abrasion caused by easy loss of lubricating oil of the spline shaft. The utility model consists of a main shaft and a secondary shaft, wherein the secondary shaft is provided with an external spline; the main shaft is embedded in the auxiliary shaft, so that a cavity appears in the internal space of the auxiliary shaft, the cavity is an oil storage area, an oil injection channel and an oil injection hole are formed in the main shaft, the oil injection hole is formed in a groove of the main shaft, the groove is sealed through a sealing strip, an oil outlet is formed in the oil storage area, an outlet of the oil outlet is arranged between key teeth of the external spline, and a plug is arranged at an inlet of the oil outlet; a sealing ring is arranged between the main shaft and the auxiliary shaft. The utility model has the advantages that: an oil storage area is arranged in the spline shaft and used for storing lubricating oil, when the spline shaft rotates and works, the lubricating oil flows out of the oil outlet under the influence of centrifugal force, the external spline is lubricated, and when the lubricating oil in the oil storage area is insufficient, the lubricating oil can be supplemented through the oil filling hole.
Description
Technical Field
The utility model belongs to the technical field of axles, and relates to a spline shaft, in particular to a spline shaft with long service life.
Background
The spline shaft is mechanically driven, and has the same function as that of flat key, semi-circular key and inclined key, and is used to transmit mechanical torque. While rotating, some may also slide longitudinally on the shaft.
The existing spline shaft is contacted with other connecting shafts through mediums such as lubricating oil, and in the long-time working process, the lubricating oil is continuously lost, so that serious mechanical abrasion is caused, and the service life of the spline shaft is shortened.
The spline transmission shaft has the advantages that the threaded holes are formed in the two ends of the spline shaft, the spline shaft is fixed with other parts in the equipment in a threaded connection mode, the processing requirement of the spline shaft is reduced, the limiting rings are arranged on the shaft, and the assembly difficulty is reduced.
Optimizations of the above patent: the spline shaft is not provided with an oil storage structure, so that the spline shaft is easy to wear, short in service life and long in downtime of equipment where the spline shaft is located, and the equipment is affected.
Disclosure of Invention
The present utility model has been made in view of the above-mentioned problems occurring in the prior art, and an object of the present utility model is to provide a spline shaft which is convenient for supplementing and storing lubricating oil and which is stable and has a long service life.
The utility model can be realized by the following technical scheme: the utility model provides a long service life's integral key shaft, includes main shaft and countershaft, is provided with spacing arch on the main shaft, and the countershaft is provided with the spacing groove, be provided with the external spline on the countershaft surface, be provided with spacing step in the countershaft, main shaft and countershaft cooperation form the oil storage district, the oiling passageway has been seted up to the axle center department of main shaft, the main shaft side sets up the recess, a plurality of oil filler points have been seted up in the recess, oil filler point and oiling passageway intercommunication, the oil storage district is provided with a plurality of oil outlet along circumference, the oil outlet export sets up between the spline tooth.
In the spline shaft with long service life, the oil filling hole is of an inclined design.
In the spline shaft with long service life, the limiting step is provided with the sealing ring.
In the spline shaft with long service life, the oil outlet inlet is provided with the countersunk head, the countersunk head is provided with the plug, the plug is provided with the baffle blade, and the plug is provided with the limiting ring.
In the spline shaft with long service life, the sealing strip is arranged on the groove, the fixing part is arranged on the sealing strip, and the cotter pin is arranged on the fixing part.
Compared with the prior art, the spline shaft has the advantages that the oil storage structure is arranged in the spline shaft, and when the spline shaft works, oil in the oil storage area flows into the external spline under the influence of centrifugal force to lubricate and dissipate heat. Meanwhile, the oil transportation frequency required by the spline shaft is reduced, the working efficiency of equipment is improved, the shaft body is divided into a main shaft and a secondary shaft, damaged parts can be replaced when damaged, complete replacement is not needed, and meanwhile machining production is facilitated.
Drawings
FIG. 1 is a schematic perspective view of a long life spline shaft;
FIG. 2 is a cross-sectional view of a long life spline shaft;
FIG. 3 is a schematic perspective view of a spindle of a long life spline shaft;
FIG. 4 is a schematic perspective view of a countershaft of a long life spline shaft;
FIG. 5 is a schematic perspective view of a long life spline shaft plug;
FIG. 6 is an enlarged view of inner race A of FIG. 2;
wherein, 1, a main shaft; 11. a limit protrusion; 12. an oiling channel; 13. an oil filling hole; 14. a groove; 2. a secondary shaft; 21. a limit groove; 22. an external spline; 23. a limit step; 24. an oil outlet hole; 241. a countersunk head; 3. an oil storage area; 4. a seal ring; 5. a plug; 51. blocking leaves; 52. a limiting ring; 6. a sealing strip; 61. a fixing part; 7. and (5) a cotter pin.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1 to 6, the present utility model can be realized by the following embodiments: the utility model provides a long service life's spline shaft, including main shaft 1 and countershaft 2, be provided with spacing arch 11 on the main shaft 1, be provided with spacing groove 21 in the countershaft 2, be provided with external spline 22 on the surface of countershaft 2, be provided with spacing step 23 in the countershaft 2, main shaft 1 inserts in countershaft 2, leave the cavity in countershaft 2, this cavity is oil storage area 3, oiling passageway 12 has been seted up to the axle center department of main shaft 1, annular groove 14 has been seted up on main shaft 1 surface, oil filler hole 13 has been seted up in the groove 14, oil filler hole 13 communicates with oiling passageway 12, oil outlet 24 has been seted up along circumference on the lateral wall of oil storage area 3, the export setting of oil outlet 24 is in the interval between external spline 22 key tooth.
When the utility model is installed in the equipment, the limiting groove 21 and the limiting bulge 11 play a role in transmitting rotation force by axially limiting other parts in the equipment, and prevent the main shaft 1 and the auxiliary shaft 2 from rotating relatively; the oil storage area 3 is used for storing lubricating oil passing through the oil filling hole 13 and the oil filling channel 12, and the oil outlet hole 24 is used for providing an oil outlet channel for the lubricating oil when the spline shaft works, so that the lubrication of the external spline 22 is ensured, the abrasion is prevented, and the service life of the spline shaft is prolonged.
Further explained, as shown in fig. 2, the oil injection hole 13 communicates with the oil injection passage 12 at an inclined angle. The inclined oil filling hole 13 facilitates the entry of lubricating oil into the oil filling channel 12, reduces the entry of external impurities, and prevents the lubricating oil from stagnating at the joint of the oil filling hole 13 and the oil filling channel 12.
As shown in fig. 2, a seal ring 4 is provided on the limit step 23. The limiting step 23 is a contact point of the main shaft 1 and the auxiliary shaft 2, and the sealing ring 4 is used for preventing oil from seeping out from a gap between the main shaft 1 and the auxiliary shaft 2.
As shown in fig. 2, 5 and 6, a countersunk head 241 is formed at the inlet of the oil outlet 24, a plug 5 is installed in the countersunk head 241, a blocking blade 51 is formed on the plug 5, and a limiting ring 52 is arranged on the plug 5. The plug 5 is used for reducing or preventing oil from exuding from the oil outlet 24 when the spline shaft is in a static state, when the spline shaft rotates and is dead, the lubricating oil extrudes the baffle blade 51 by virtue of centrifugal force, so that the baffle blade 51 is outwards bent to achieve the purpose of oil outlet, and the limiting ring 52 is used for enabling the plug 5 and the countersunk head 241 to be in interference fit, so that the plug 5 is prevented from accidentally falling off.
As shown in fig. 1 to 2, a sealing strip 6 is mounted on the groove 14 on the spindle 1, a fixing portion 61 is provided on the sealing strip 6, and a cotter pin 7 is mounted on the fixing portion 61. The sealing strip 6 is used for shielding external impurities for the oil filling hole 13, preventing the external impurities from entering the oil storage area 3 along with oil, and entering the joint of the external spline 22 and other components when the spline shaft rotates, so that abrasion is caused; the fixed part 61 is provided with a cotter pin 7, so that maintenance personnel can conveniently disassemble and assemble the sealing strip 6, and oil is injected into the oil injection hole 13.
The working principle of the utility model is as follows: when the spline shaft rotates, oil in the oil storage area 3 is extruded by centrifugal force to extrude the plug 5, and the blocking blades 51 on the plug 5 are punched, so that the oil flows out from the oil outlet 24 and lubricates the external spline 22; when the spline shaft is static, the plug 5 plays a role in sealing, so that the seepage of oil in the oil storage area 3 is reduced, and the frequency of supplementing lubricating oil is reduced; when the oil in the oil storage area 3 is insufficient, the sealing strip 6 on the main shaft 1 is dismounted, and the oil is filled into the oil filling hole 13 to supplement the lubricating oil to the oil storage area 3.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Although various terms are used more herein, the use of other terms is not precluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.
Claims (5)
1. The utility model provides a long service life's spline shaft, includes main shaft (1) and countershaft (2), is provided with spacing arch (11) on main shaft (1), and countershaft (2) are provided with spacing groove (21), a serial communication port, countershaft (2) are provided with external spline (22) on the surface, be provided with spacing step (23) in countershaft (2), main shaft (1) and countershaft (2) cooperation form oil storage district (3), oiling passageway (12) have been seted up in the axle center department of main shaft (1), main shaft (1) side sets up recess (14), a plurality of oil filler points (13) have been seted up in recess (14), oil filler point (13) and oiling passageway (12) intercommunication, oil storage district (3) are provided with a plurality of oil outlet (24) along circumference, oil outlet (24) export setting is between the spline teeth.
2. A long life spline shaft as claimed in claim 1, wherein said oil filler holes (13) are of oblique design.
3. A long life spline shaft as claimed in claim 1, characterised in that said limit step (23) is provided with a sealing ring (4).
4. The spline shaft with long service life according to claim 1, wherein a countersunk head (241) is arranged at an inlet of the oil outlet (24), a plug (5) is arranged at the countersunk head (241), a baffle blade (51) is arranged on the plug (5), and a limiting ring (52) is arranged on the plug (5).
5. A long life spline shaft as claimed in claim 1, wherein said groove (14) is provided with a sealing strip (6), said sealing strip (6) is provided with a fixing portion (61), and said fixing portion (61) is provided with a cotter pin (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321825459.6U CN220286240U (en) | 2023-07-12 | 2023-07-12 | Spline shaft with long service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321825459.6U CN220286240U (en) | 2023-07-12 | 2023-07-12 | Spline shaft with long service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220286240U true CN220286240U (en) | 2024-01-02 |
Family
ID=89330455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321825459.6U Active CN220286240U (en) | 2023-07-12 | 2023-07-12 | Spline shaft with long service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220286240U (en) |
-
2023
- 2023-07-12 CN CN202321825459.6U patent/CN220286240U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |