CN204716783U - Spline device - Google Patents
Spline device Download PDFInfo
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- CN204716783U CN204716783U CN201520276621.2U CN201520276621U CN204716783U CN 204716783 U CN204716783 U CN 204716783U CN 201520276621 U CN201520276621 U CN 201520276621U CN 204716783 U CN204716783 U CN 204716783U
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- spline
- splined shaft
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- axis body
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Abstract
The utility model discloses a kind of spline device, comprise ring-type axis body, the inner ring of ring-type axis body arranges the first spline being used for coordinating with the first splined shaft, and the outer ring of ring-type axis body arranges the second spline being used for coordinating with the second splined shaft.By arranging the first spline of coordinating with the first splined shaft at the inner ring of ring-type axis body and arranging the second spline coordinated with the second splined shaft in the outer ring of ring-type axis body, reduce the technical problem that in the first splined shaft and the second splined shaft, the spline flank of tooth is easy to wear, make only need change spline device when wearing and tearing appear in spline in splined shaft, and do not need to change whole splined shaft, thus improve the working life of splined shaft, reduce the maintenance cost of splined shaft.
Description
Technical field
The utility model relates to transmission system connection set field, especially, relates to a kind of spline device.
Background technique
In the transmission system of existing Helicopter Main Reducer, connection between accessory device and transmission system generally adopts splined shaft to connect, the stress be subject to due to the spline joint place of two splined shafts is large relative to other location comparisons of splined shaft, therefore the spline tooth face of splined shaft is is easily worn and torn, once spline tooth surface wear or fracture, usually need to change whole splined shaft, maintenance cost is high.In addition, the spline joint between existing splined shaft belongs to and is rigidly connected, and vibration isolating effect is poor, easily ruptures, and may lead to system abnormity and cause major accident.So, need badly and a kind of spline device that can reduce spline tooth surface wear in splined shaft is provided.
Model utility content
The utility model provides a kind of spline device, to solve the technical problem that in splined shaft, the spline flank of tooth is easy to wear.
The technical solution adopted in the utility model is as follows:
A kind of spline device, comprises ring-type axis body, and the inner ring of ring-type axis body arranges the first spline being used for coordinating with the first splined shaft, and the outer ring of ring-type axis body arranges the second spline being used for coordinating with the second splined shaft.
Further, the key odontoid of the first spline and the key odontoid of the second spline are any one in rectangle, isosceles trapezoid, involute.
Further, the keyway of the first spline and the keyway shape of the second spline are circular arc.
Further, the keyway shape of the first spline is circular arc, and the key odontoid of the second spline is isosceles trapezoid.
Further, the first spline coordinates with the external splines of the first splined shaft, and the second spline coordinates with the internal spline of the second splined shaft.
Further, the first spline, the second spline and section roller body by integral forming.
Further, the outer surface of the first spline and/or the second spline has nylon layer.
The utility model has following beneficial effect:
Spline device of the present utility model, by arranging the first spline of coordinating with the first splined shaft at the inner ring of ring-type axis body and arranging the second spline coordinated with the second splined shaft in the outer ring of ring-type axis body, reduce the technical problem that in the first splined shaft and the second splined shaft, the spline flank of tooth is easy to wear, make only need change spline device when wearing and tearing appear in spline in splined shaft, and do not need to change whole splined shaft, thus improve the working life of splined shaft, reduce the maintenance cost of splined shaft.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the spline device of the utility model preferred embodiment; And
Fig. 2 is the spline device of the utility model preferred embodiment and the scheme of installation of splined shaft.
Accompanying drawing illustrates:
1, accessory drive axle; 2, spline device; 200, ring-type axis body; 201, the first spline; 202, the second spline; 3, transmission output shaft.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
With reference to Fig. 1, preferred embodiment of the present utility model provides a kind of spline device 2, comprise ring-type axis body 200, the inner ring of ring-type axis body 200 arranges the first spline 201 being used for coordinating with the first splined shaft, and the outer ring of ring-type axis body 200 arranges the second spline 202 being used for coordinating with the second splined shaft.
Spline device 2 of the present utility model, by arranging the first spline 201 of coordinating with the first splined shaft at the inner ring of ring-type axis body 200 and arranging the second spline 202 coordinated with the second splined shaft in the outer ring of ring-type axis body 200, reduce the technical problem that in the first splined shaft and the second splined shaft, the spline flank of tooth is easy to wear, make only need change spline device 2 when wearing and tearing appear in spline in splined shaft, and do not need to change whole splined shaft, thus improve the working life of splined shaft, reduce the maintenance cost of splined shaft.
Alternatively, the key odontoid of the first spline 201 and the key odontoid of the second spline 202 are any one in rectangle, isosceles trapezoid, involute.Existing common spline mainly contains rectangular spline and involute splines, and this is mainly that rectangle or involute are named based on the key odontoid of spline.First spline 201 of the present embodiment can be identical with the structure of the second spline 202, also can be different, namely the first spline 201 key odontoid can be any one in rectangle, isosceles trapezoid, involute, and the second spline 202 key odontoid also can be any one in rectangle, isosceles trapezoid, involute.
Alternatively, the first spline 201 is identical with the structure of the second spline 202, and the key odontoid of the first spline 201 and the second spline 202 is any one in rectangle, isosceles trapezoid, involute.Key tooth adopts the centering precision of the spline of rectangular configuration shape high.Key tooth adopts the spline of involute structure shape can adopt the method for machining gears to process, and manufacturability is better, and accuracy of manufacturing is high, tooth root portion is thicker, and key tooth intensity is high, due to the effect of each flank of tooth footpath mental and physical efforts, self-alignment when can make spline joint, thus it is even to be conducive to each tooth stand under load.When the diameter of axle is larger, the general spline adopting involute in form.Adopt the first spline 201 and the second spline 202 that structure is identical, mainly based on easy to process, the angle that work efficiency is high is considered.
Alternatively, the keyway of the first spline 201 and the keyway shape of the second spline 202 are circular arc.Keyway shape is adopted to be the spline of circular arc, considering mainly based on difficulty of processing and processing cost, traditional involute splines, although its centering effect is good, join strength is high, but its processing needs degree of precision, causes difficulty of processing and processing cost to increase greatly, and the present embodiment employing keyway shape is this petal spline of circular arc, difficulty of processing and processing cost lower, and adopting this spline fitted Placement of circular arc, centering precision is high, and degree of adaptability is good.
Alternatively, the keyway shape of the first spline 201 is circular arc, and the key odontoid of the second spline 202 is isosceles trapezoid.The spline device 2 of the first spline 201 that employing structure is different and this two-sided abnormity of the second spline 202 form fully in conjunction with the advantage of two kinds of spline types, thus better realizes with the connection of splined shaft and coordinates.
Alternatively, the first spline 201 coordinates with the external splines of the first splined shaft, and the second spline 202 coordinates with the internal spline of the second splined shaft.With reference to figure 2, the keyway shape of first spline 201 of the present embodiment is circular arc, and the key odontoid of the second spline 202 is isosceles trapezoid.First spline 201 coordinates with the external splines of the first splined shaft, and the second spline 202 coordinates with the internal spline of the second splined shaft.
The first splined shaft in the present embodiment is accessory drive axle 1, and accessory drive axle 1 is coordinated with the first spline 201 of spline device 2 by its external splines; Second splined shaft of the present embodiment is transmission output shaft 3, and transmission output shaft 3 is coordinated with the second spline 202 of spline device 2 by its internal spline.By will the first spline 201 and this two-sided special-shaped spline device 2 of the second spline 202 had be used for being connected the spline joint of the first splined shaft and the second splined shaft, the technical problem that in the first splined shaft and the second splined shaft, the spline flank of tooth is easy to wear can be reduced, make only need change spline device 2 when wearing and tearing appear in spline in splined shaft, and do not need to change whole splined shaft, thus improve the working life of splined shaft, reduce the maintenance cost of splined shaft.And; adopt this two-sided special-shaped spline device 2 structure of the present embodiment can make when system exception; what destroy at first is two-sided special-shaped spline device 2, thus is conducive to protecting accessory device, and improves the safety and stability of the power transimission of transmission system.
The spline device 2 of the present embodiment is made up of nonmetallic material.The spline device 2 that the utility model adopts nonmetallic material to make, can play the effect of absorbing, the spline joint solved between existing splined shaft belongs to and is rigidly connected, and vibration isolating effect is poor, easily to rupture, may lead to system abnormity and cause the technical problem of major accident.Alternatively, nonmetallic material are polyamidoimide material.Polyamidoimide material has excellent strength retention and the characteristic such as splendid dimensional stability and selflubricating under high strength, high impact properties, high wear resistance, excellent fatigue performance, good resistance to high temperature, high temperature, can realize spline device 2 and carry out the stability of power transimission, reliability and Security.
The performance requirement of the present embodiment spline device 2 mainly comprises: 1, serviceability temperature: (-40 ~+150) DEG C; 2, working speed: (12000-14400) r/min; 3, working medium: lubricating oil DOD-L-85734; 4, nominal operation rotating speed: 12000r/min; 5, transmitted power: 90kW; 6, limit load: 156.8Nm.
The present embodiment determines the material technology index of spline device 2 as table 1 by Strength co-mputation and technological test, and under drawing limit load by quiet torsional test, spline device 2 can not be destroyed simultaneously.
Table 1 material technology index
Alternatively, the outer surface of the first spline 201 and/or the second spline 202 has nylon layer, by the outer surface nylon layer at the first spline 201 and/or the second spline 202, the frictional force that spline device 2 coordinates with splined shaft can be reduced, reduce operating noise, effectively extend the working life of spline device 2 and splined shaft.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a spline device, comprises ring-type axis body (200), it is characterized in that,
The inner ring of described ring-type axis body (200) arranges the first spline (201) being used for coordinating with the first splined shaft, and the outer ring of described ring-type axis body (200) arranges the second spline (202) being used for coordinating with the second splined shaft.
2. spline device according to claim 1, is characterized in that,
The key odontoid of described first spline (201) and the key odontoid of described second spline (202) are any one in rectangle, isosceles trapezoid, involute.
3. spline device according to claim 1, is characterized in that,
The keyway of described first spline (201) and the keyway shape of described second spline (202) are circular arc.
4. spline device according to claim 1, is characterized in that,
The keyway shape of described first spline (201) is circular arc, and the key odontoid of described second spline (202) is isosceles trapezoid.
5. spline device according to claim 4, is characterized in that,
Described first spline (201) coordinates with the external splines of described first splined shaft, and described second spline (202) coordinates with the internal spline of described second splined shaft.
6. spline device according to claim 5, is characterized in that,
Described first spline (201), described second spline (202) and described ring-type axis body (200) are one-body molded.
7. spline device according to claim 5, is characterized in that,
The outer surface of described first spline (201) and/or described second spline (202) has nylon layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520276621.2U CN204716783U (en) | 2015-04-30 | 2015-04-30 | Spline device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520276621.2U CN204716783U (en) | 2015-04-30 | 2015-04-30 | Spline device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716783U true CN204716783U (en) | 2015-10-21 |
Family
ID=54315785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520276621.2U Active CN204716783U (en) | 2015-04-30 | 2015-04-30 | Spline device |
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| Country | Link |
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| CN (1) | CN204716783U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422558A (en) * | 2015-12-04 | 2016-03-23 | 中国航空动力机械研究所 | Helicopter torque transmitting mechanism and helicopter speed reducer transmission device |
| CN109505797A (en) * | 2017-09-14 | 2019-03-22 | 柴姣姣 | A kind of oil pump shaft convenient for safeguarding |
| CN110979453A (en) * | 2019-11-12 | 2020-04-10 | 珠海格力电器股份有限公司 | Connection structure of motor and electric power steering oil pump, power steering system and automobile |
-
2015
- 2015-04-30 CN CN201520276621.2U patent/CN204716783U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422558A (en) * | 2015-12-04 | 2016-03-23 | 中国航空动力机械研究所 | Helicopter torque transmitting mechanism and helicopter speed reducer transmission device |
| CN105422558B (en) * | 2015-12-04 | 2018-05-01 | 中国航空动力机械研究所 | Helicopter torque-transmitting mechanisms and helicopter reducer transmission device |
| CN109505797A (en) * | 2017-09-14 | 2019-03-22 | 柴姣姣 | A kind of oil pump shaft convenient for safeguarding |
| CN110979453A (en) * | 2019-11-12 | 2020-04-10 | 珠海格力电器股份有限公司 | Connection structure of motor and electric power steering oil pump, power steering system and automobile |
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