CN106763794B - A kind of end face seal structure of fuel oil pump shaft tail - Google Patents
A kind of end face seal structure of fuel oil pump shaft tail Download PDFInfo
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- CN106763794B CN106763794B CN201510823513.7A CN201510823513A CN106763794B CN 106763794 B CN106763794 B CN 106763794B CN 201510823513 A CN201510823513 A CN 201510823513A CN 106763794 B CN106763794 B CN 106763794B
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Abstract
The present invention relates to a kind of fuel oil gear pump shaft tail end surface seal structures, belong to the technical field of structures of product.The purpose of the present invention is shorten the axially mounted space of gear pump shaft tail sealing device, realize product loss of weight, while reducing the difficulty of axis tail assembly, overcome the deficiencies in the prior art to simplify shaft tail end surface seal structure.To achieve the above object, the technical solution adopted by the present invention is that: a kind of end face seal structure of fuel oil gear pump shaft tail, the fuel pump be used for aero-engine；The sealing structure is the seal face (rotating ring) that dynamic and static ring sealing structure includes static components (stationary ring) and fuel pump driving gear.
Description
Technical field
The present invention relates to a kind of fuel oil gear pump shaft tail end surface seal structures, belong to the technical field of structures of product.
Background technique
It is well known that the shaft tail end face sealing of fuel oil gear pump is general all by rotating ring, stationary ring, spring (loading system), anti-
Ship and resell on another market, composition, the stationary ring such as auxiliary seal ring, dynamic (quiet) ring seat are generally mounted on end cap, rotating ring is generally mounted on transmission shaft
Rotating seat in, therefore axis tail sealing device is axially long, occupies a large amount of installation space of gear pump case axis tail, leads to case weight
It is high.In addition, cumbersome when this kind of axis tail sealing device assembly.
The content of invention
The purpose of invention
There are certain shortcomings for the fuel oil gear pump shaft tail mechanical seal used in the prior art: axial length is long,
It is required that installation space volume is big, cause gear pump case weight high, this is very not for aviation and space flight pump class product design
Benefit；In addition, traditional axis tail sealing structure is more complex, assemble cumbersome.
The purpose of the present invention is shorten the axially mounted sky of gear pump shaft tail sealing device to simplify shaft tail end surface seal structure
Between, realize product loss of weight, while reducing the difficulty of axis tail assembly, overcome the deficiencies in the prior art.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of end face seal knot of fuel oil gear pump shaft tail
Structure, the fuel pump are used for aero-engine；
As shown in Figure 1, it includes static components 3 (stationary ring) and fuel pump master that the sealing structure, which is dynamic and static ring sealing structure,
The seal face 16 (rotating ring) of moving gear 5；Static components 3 are run through by fuel oil pump input shaft 1, and pass through screw 2 for stationary ring group
Part 3 is assemblied on gear pump case 4；
As shown in Fig. 2, static components include stationary ring 8, end cap 6, stationary seat 14, Anti-rotary block 11, retaining ring 10, waveform spring
13, adjusting washer 12 and O-ring seal 7,9；End cap 6 is fixedly connected with stationary seat 14 and is sealed using O-ring seal 7, quiet
Ring seat 14 is annular element and section is spill, and the sidewall weld in spill has Anti-rotary block 11, is sequentially loaded into wave in concave inside
The section of shape spring (13), adjusting washer 12, O-ring seal 9 and stationary ring 8, stationary ring 8 is step, and the end face of stationary ring 8 is formed
For seal face 15, retaining ring 10 is stuck in the spill oral area of 8 step surface of stationary ring and stationary seat；
As shown in figure 3, the axially projecting formation seal face (16) of fuel pump driving gear 5, the fuel pump
The seal face 16 of driving gear 5 is bonded to form dynamic and static ring sealing with the seal face 15 of stationary ring (8).
In driving gear (rotating ring) side, due to the accurate limiting of gear pump sliding bearings, the machinery on driving gear 5 is close
The axial displacement and end face run-out in sealing end face are minimum, will not generate deflection.In stationary ring side, due to axis tail fuel pressure and waveform
The effect of spring force, stationary ring seal face and driving gear (rotating ring) seal face fit closely and opposite sliding, composition are mechanical
Sealing device prevents fluid from leaking.
The effect of invention
This invention simplifies fuel oil gear pump shaft tail end surface seal structures, shorten axially mounted space, alleviate product
Weight, while reducing the difficulty of axis tail assembly.
Detailed description of the invention
Fig. 1 is gear pump shaft tail mechanical seal structure schematic diagram；
Fig. 2 is gear pump shaft tail mechanical seal structure figure and its partial enlarged view；
Fig. 3 is static components structural schematic diagram；
Fig. 4 is driving gear schematic diagram；
Wherein 1-input shaft, 2-screws, 3-static components, 4-gear pump cases, 5-driving gears, 6-end caps,
7-O-ring seals, 8-stationary rings, 9-O-ring seals, 10-retaining rings, 11-Anti-rotary blocks, 12-adjusting washers, 13-waveform bullets
Spring, 14-stationary seats, 15-seal faces (stationary ring), 16-seal faces (rotating ring).
Specific embodiment
The present invention is a kind of end face seal structure of fuel oil gear pump shaft tail, and the fuel pump is used for aero-engine；
As shown in Figure 1, it includes static components 3 and fuel pump driving gear that the sealing structure, which is dynamic and static ring sealing structure,
5 seal face 16；Static components 3 are run through by fuel oil pump input shaft 1, and static components 3 are assemblied in gear by screw 2
In pump case 4；
As shown in Fig. 2, static components include stationary ring 8, end cap 6, stationary seat 14, Anti-rotary block 11, retaining ring 10, waveform spring
13, adjusting washer 12 and O-ring seal 7,9；End cap 6 is fixedly connected with stationary seat 14 and is sealed using O-ring seal 7, quiet
Ring seat 14 is annular element and section is spill, and the sidewall weld in spill has Anti-rotary block 11, is sequentially loaded into wave in concave inside
The section of shape spring (13), adjusting washer 12, O-ring seal 9 and stationary ring 8, stationary ring 8 is step, and the end face of stationary ring 8 is formed
For seal face 15, retaining ring 10 is stuck in the spill oral area of 8 step surface of stationary ring and stationary seat；
As shown in figure 3, the axially projecting formation seal face (16) of fuel pump driving gear 5, the fuel pump
The seal face 16 of driving gear 5 is bonded to form dynamic and static ring sealing with the seal face 15 of stationary ring (8).
In driving gear (rotating ring) side, due to the accurate limiting of gear pump sliding bearings, the machinery on driving gear 5 is close
The axial displacement and end face run-out in sealing end face are minimum, will not generate deflection.In stationary ring side, due to axis tail fuel pressure and waveform
The effect of spring force, stationary ring seal face and driving gear (rotating ring) seal face fit closely and opposite sliding, composition are mechanical
Sealing device prevents fluid from leaking.
Claims (2)
1. a kind of end face seal structure of fuel oil gear pump shaft tail, the fuel pump is aero-engine fuel pump；
The sealing structure is the sealed end that dynamic and static ring sealing structure includes static components (3) and fuel pump driving gear (5)
Face (16)；Static components (3) are run through by fuel oil pump input shaft (1), and static components (3) are assemblied in tooth by screw (2)
It takes turns on pump case (4)；
Static components include stationary ring (8), end cap (6), stationary seat (14), Anti-rotary block (11), retaining ring (10), waveform spring (13),
Adjusting washer (12), the first O-ring seal (7) and the second O-ring seal (9)；End cap (6) is fixedly connected with stationary seat (14)
And sealed using the first O-ring seal (7), stationary seat (14) is annular element and section is spill, the sidewall weld in spill
Have Anti-rotary block (11), concave inside be sequentially loaded into waveform spring (13), adjusting washer (12), the second O-ring seal (9) and
The section of stationary ring (8), stationary ring (8) is step, and the end face of stationary ring (8) is formed as seal face (15), and retaining ring (10) is stuck in quiet
The spill oral area of ring (8) step surface and stationary seat；
The axially projecting formation seal face (16) of fuel pump driving gear (5), the fuel pump driving gear (5)
Seal face (16) is bonded to form dynamic and static ring sealing with the seal face (15) of stationary ring (8).
2. a kind of end face seal structure of fuel oil gear pump shaft tail according to claim 1, it is characterised in that: in driving tooth
Side is taken turns, by the sliding bearing of gear pump to driving gear (5) accurate limiting；In axis tail fuel pressure and the work of waveform spring power
Under, the seal face of stationary ring and the seal face of driving gear are fitted closely and are slided relatively, are formed mechanically-sealing apparatus, are prevented
The leakage of fluid stopping body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510823513.7A CN106763794B (en) | 2015-11-24 | 2015-11-24 | A kind of end face seal structure of fuel oil pump shaft tail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510823513.7A CN106763794B (en) | 2015-11-24 | 2015-11-24 | A kind of end face seal structure of fuel oil pump shaft tail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106763794A CN106763794A (en) | 2017-05-31 |
| CN106763794B true CN106763794B (en) | 2018-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510823513.7A Active CN106763794B (en) | 2015-11-24 | 2015-11-24 | A kind of end face seal structure of fuel oil pump shaft tail |
Country Status (1)
| Country | Link |
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| CN (1) | CN106763794B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608190A (en) * | 2019-09-27 | 2019-12-24 | 中国舰船研究设计中心 | Sealing system for small-volume large-flow low-sulfur fuel pump for ships |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2173265A (en) * | 1985-04-01 | 1986-10-08 | Huang Yongguan | An adjustable sealing apparatus for a rotation shaft and an auto-circulating lubrication system therefor |
| CN201078473Y (en) * | 2007-06-27 | 2008-06-25 | 胡滨 | Mechanical seal member for stirrer |
| CN101893092A (en) * | 2010-06-29 | 2010-11-24 | 杨惠霞 | Bilaterally rotary gas lubrication non-contact mechanical seal device |
| CN204153147U (en) * | 2014-09-03 | 2015-02-11 | 上海乐合流体机械有限公司 | Pumping anti-leak mechanical seal device |
| CN204186998U (en) * | 2014-07-21 | 2015-03-04 | 浙江工业大学 | Anti-axial vibration type mechanical seal device |
| CN104696517A (en) * | 2013-12-04 | 2015-06-10 | 丹东波纹管密封有限公司 | Integrated double mechanical seal |
| CN204755907U (en) * | 2015-06-18 | 2015-11-11 | 江苏圣奥化学科技有限公司 | Mechanical seal device |
-
2015
- 2015-11-24 CN CN201510823513.7A patent/CN106763794B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2173265A (en) * | 1985-04-01 | 1986-10-08 | Huang Yongguan | An adjustable sealing apparatus for a rotation shaft and an auto-circulating lubrication system therefor |
| CN201078473Y (en) * | 2007-06-27 | 2008-06-25 | 胡滨 | Mechanical seal member for stirrer |
| CN101893092A (en) * | 2010-06-29 | 2010-11-24 | 杨惠霞 | Bilaterally rotary gas lubrication non-contact mechanical seal device |
| CN104696517A (en) * | 2013-12-04 | 2015-06-10 | 丹东波纹管密封有限公司 | Integrated double mechanical seal |
| CN204186998U (en) * | 2014-07-21 | 2015-03-04 | 浙江工业大学 | Anti-axial vibration type mechanical seal device |
| CN204153147U (en) * | 2014-09-03 | 2015-02-11 | 上海乐合流体机械有限公司 | Pumping anti-leak mechanical seal device |
| CN204755907U (en) * | 2015-06-18 | 2015-11-11 | 江苏圣奥化学科技有限公司 | Mechanical seal device |
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| Publication number | Publication date |
|---|---|
| CN106763794A (en) | 2017-05-31 |
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