CN206320290U - A kind of novel high speed end part of driving shaft oil enveloping structure - Google Patents
A kind of novel high speed end part of driving shaft oil enveloping structure Download PDFInfo
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- CN206320290U CN206320290U CN201621173622.5U CN201621173622U CN206320290U CN 206320290 U CN206320290 U CN 206320290U CN 201621173622 U CN201621173622 U CN 201621173622U CN 206320290 U CN206320290 U CN 206320290U
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Abstract
The utility model is related to a kind of oil enveloping structure, and in particular to a kind of novel high speed end part of driving shaft oil enveloping structure.Including casing and high-speed rotation axle, casing end and high-speed rotation axle are sealed by clearance sealing component, and clearance sealing component is provided with breather pipe and oil return pipe, oil return pipe communication gap seal and casing, high-speed rotation axle in casing is provided with disc, and disc is located at casing end；Clearance sealing component and high-speed rotation axle are contactless, and the gap of clearance sealing component and high-speed rotation axle is more than the shifting amount of high-speed rotation axle in the running；Passage is communicated with outside atmosphere, and the atmospheric pressure of atmospheric pressure region is introduced by breather pipe, the air pressure balance of sealing both ends is reached；Part lubricating oil is thrown away and away from sealing, forms Jiao You areas by disc when high speed rotates.The utility model sets disc on the power transmission shaft of high speed rotation, and disc can throw most of oil away away from sealing, and most of oil seal effect is realized with most simplified mode.
Description
Technical field：
The utility model is related to a kind of oil enveloping structure, and in particular to a kind of novel high speed end part of driving shaft oil enveloping structure.
Background technology：
It is a complicated technology using the end part seal of sliding supported condition high-speed drive shaft, is primarily due to power transmission shaft and exists
Raising speed is to during stable, and shaft core position is dynamic change, particularly high rotating speed（Rotating speed is more than 20000rpm）When, transmission
This characteristic of axle is more obvious.Secondly, power transmission shaft is when running at high speed, and its end can form the region of negative pressure, and rotating speed is got over
High negative pressure effect is more obvious.Finally, for high-speed drive shaft, it is considered to the influence of its dynamic characteristic, the axial design size of sealing
It is limited.More current high speed shaft is to use contact seal, and this sealing is easily damaged, it is necessary to often change.It is contactless close
It is enclosed in high-speed drive shaft and applies limited, and industry high speed power transmission shaft widespread demand non-contacting seal.Traditional clearance seal
Shortcoming governs its application in terms of high speed shaft.So, it is very to design a kind of novel high speed end part of driving shaft oil enveloping structure
It is necessary.
Utility model content：
The utility model effectively solves the limitation of high-speed drive shaft sealing applications, substantially increases non-contacting seal
Application, the end oil enveloping structure can efficiently solve seal case inside lubricating oil toward exosmosis, and can apply to
Speedy carding process shaft end, it is easy to large-scale promotion application.
The technical solution adopted in the utility model is：A kind of novel high speed end part of driving shaft oil enveloping structure, including casing and
High-speed rotation axle, casing end and high-speed rotation axle are sealed by clearance sealing component, and clearance sealing component is provided with breather pipe and returns
High-speed rotation axle in oil pipe, oil return pipe communication gap seal and casing, casing is provided with disc, and disc is located at casing
End.
Described clearance sealing component and high-speed rotation axle are contactless, and the gap of clearance sealing component and high-speed rotation axle is more than height
The shifting amount of fast rotary shaft in the running.
Described breather pipe is communicated with outside atmosphere, and the atmospheric pressure of atmospheric pressure region is introduced by breather pipe, sealing two is reached
The air pressure balance at end, prevents permeability.
Part lubricating oil is thrown away and away from sealing, forms Jiao You areas by described disc when high speed rotates.
The spill port of oil return pipe is located on the outside of Jiao You areas on the casing, and lubricating oil is flowed back in casing by oil return pipe.
The beneficial effects of the utility model：Disc is set on the power transmission shaft of high speed rotation, disc can be big portion
Divide oil to throw away away from sealing, most of oil seal effect is realized with most simplified mode.Set simultaneously in oil sealing end
Put a breather pipe to communicate with air, the atmospheric pressure introduced by breather pipe, the air pressure balance of sealing both ends can be achieved.Finally close
Envelope sets a spill port, and the lubricating oil stored under gravity directly may return to box house, realize sealing effectiveness.Due to
The shaft core position of high-speed drive shaft is dynamic change, while its end can form negative pressure substantially, rotating speed gets over high negative pressure effect
It is more obvious, and traditional clearance seal can not realize this function.Therefore, it can be solved simultaneously by the design of this shaft seal structure
State problem.This oil enveloping structure can realize power transmission shaft at a high speed（More than 20000rpm）Operating mode under occur without oil leakage phenomenon, protect
Demonstrate,prove power transmission shaft behavior in service good, high speed shaft end oil seal has the advantages that simple in construction, size is small and suitable for high speed shaft, adopts
Clearance seal mode is used, high-speed drive shaft and sealing are not in contact with, can be very good protection power transmission shaft and be not damaged by, on the other hand
Structural principle is simple, can meet the demand that all kinds of height turn end part of driving shaft sealing.
Brief description of the drawings：
Fig. 1 is structural representation of the present utility model.
Embodiment：
Reference picture 1, a kind of novel high speed end part of driving shaft oil enveloping structure, including casing 1 and high-speed rotation axle 6, the end of casing 1
Portion and high-speed rotation axle 6 are sealed by clearance sealing component 8, and clearance sealing component 8 is provided with breather pipe 9 and oil return pipe 5, oil return pipe 5
High-speed rotation axle 6 in communication gap seal 8 and casing 1, casing 1 is provided with disc 2, and disc 2 is located at the end of casing 1
Portion；Described clearance sealing component 8 and high-speed rotation axle 6 is contactless, and the gap of clearance sealing component 8 and high-speed rotation axle 6 is more than height
The shifting amount of fast rotary shaft 6 in the running；Described breather pipe 9 is communicated with outside atmosphere, the atmospheric pressure introduced by breather pipe 9
The atmospheric pressure in area 4, reaches the air pressure balance of sealing both ends, prevents permeability；Described disc 2 is sliding by part when high speed rotates
Oil is thrown away and away from sealing, forms Jiao You areas 3；The spill port of oil return pipe 5 is located at the outside of Jiao You areas 3, lubricating oil on the casing 1
Flowed back to by oil return pipe 5 in casing 1.
The shaft seal structure is provided with air pressure balance breather pipe 9 and spill port 5, because high-speed drive shaft 6 can be formed in its end
The lubricating oil do not thrown away in negative pressuren zone 7, casing 1 can be along oil sealing toward exosmosis, so as to cause in the presence of the internal pressure of casing 1
Oil leak；Therefore, a breather pipe 9 is set to be communicated with air in oil sealing end, the atmospheric pressure introduced by breather pipe 9 can be achieved
The air pressure balance of sealing both ends.After the air pressure balance of oil sealing two ends, the lubricating oil of seal clearance loses the pressure toward exosmosis, but
If flowed away not in time, the lubricating oil of storage is more and more, it is also possible that causing lubricating oil to ooze out, therefore is set back at sealing
Oil, 5, the lubricating oil of storage is returned directly to inside casing 1 under gravity, realizes oil seal, and the position of spill port 5 should be kept away
Open the position of Jiao You areas 3 of disc.Designed using clearance seal, seal assembly is not in contact with high-speed drive shaft 6, its gap width
The shifting amount of high-speed drive shaft 6 at work is should be greater than, this is it is avoided that high-speed drive shaft 6 is sent out in high speed conditions lower axle with sealing
Raw abrasion, while setting disc 2 on high-speed drive shaft 6, in the case where high speed rotates, disc 2 can throw most of oil away
Away from sealing, most of oil seal effect is realized with most simplified mode.It can be applied to more than rotating speed 20000rpm
It is driven shaft end.
Claims (5)
1. a kind of novel high speed end part of driving shaft oil enveloping structure, including casing（1）And high-speed rotation axle（6）, it is characterised in that：Case
Body（1）End and high-speed rotation axle（6）Pass through clearance sealing component（8）Sealing, clearance sealing component（8）It is provided with breather pipe（9）And
Oil return pipe（5）, oil return pipe（5）Communication gap seal（8）And casing（1）, casing（1）Interior high-speed rotation axle（6）It is provided with
Disc（2）, disc（2）Positioned at casing（1）End.
2. a kind of novel high speed end part of driving shaft oil enveloping structure according to claim 1, it is characterised in that：Described gap
Seal（8）With high-speed rotation axle（6）It is contactless, clearance sealing component（8）With high-speed rotation axle（6）Gap be more than high-speed rotation
Axle（6）Shifting amount in the running.
3. a kind of novel high speed end part of driving shaft oil enveloping structure according to claim 1, it is characterised in that：Described ventilation
Pipe（9）Communicated with outside atmosphere, pass through breather pipe（9）Introduce atmospheric pressure region（4）Atmospheric pressure, reach sealing both ends air pressure put down
Weighing apparatus, prevents permeability.
4. a kind of novel high speed end part of driving shaft oil enveloping structure according to claim 1, it is characterised in that：Described gets rid of oil
Ring（2）Part lubricating oil is thrown away when high speed rotates and away from sealing, Jiao You areas are formed（3）.
5. a kind of novel high speed end part of driving shaft oil enveloping structure according to claim 1 or claim 4, its feature exists
In：The casing（1）Upper oil return pipe（5）Spill port be located at Jiao You areas（3）Outside, lubricating oil passes through oil return pipe（5）Flow back to casing
（1）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621173622.5U CN206320290U (en) | 2016-11-03 | 2016-11-03 | A kind of novel high speed end part of driving shaft oil enveloping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621173622.5U CN206320290U (en) | 2016-11-03 | 2016-11-03 | A kind of novel high speed end part of driving shaft oil enveloping structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206320290U true CN206320290U (en) | 2017-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621173622.5U Active CN206320290U (en) | 2016-11-03 | 2016-11-03 | A kind of novel high speed end part of driving shaft oil enveloping structure |
Country Status (1)
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| CN (1) | CN206320290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352088A (en) * | 2016-11-03 | 2017-01-25 | 哈尔滨广瀚动力传动有限公司 | Novel end oil seal structure of high-speed transmission shaft |
-
2016
- 2016-11-03 CN CN201621173622.5U patent/CN206320290U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352088A (en) * | 2016-11-03 | 2017-01-25 | 哈尔滨广瀚动力传动有限公司 | Novel end oil seal structure of high-speed transmission shaft |
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