CN204402646U - Compressor end sealing structure of turbosuperchargers - Google Patents
Compressor end sealing structure of turbosuperchargers Download PDFInfo
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- CN204402646U CN204402646U CN201420751115.XU CN201420751115U CN204402646U CN 204402646 U CN204402646 U CN 204402646U CN 201420751115 U CN201420751115 U CN 201420751115U CN 204402646 U CN204402646 U CN 204402646U
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- oil
- stuffing box
- turbosuperchargers
- box gland
- sealing cap
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Abstract
A kind of compressor end sealing structure of turbosuperchargers, it comprises stuffing box gland, oil sealing cap, thrust bearing, bearing (ball) cover, rotor shaft, compressor housings and bearing support.It also comprises oil baffle, oil baffle is provided with center hole, oil baffle is arranged on oil sealing cap one end near thrust bearing, and be pressed against on the step surface in compressor housings endoporus by oil sealing cap, gap is formed between the center hole of oil baffle and the periphery of stuffing box gland, form shoe cream room A between oil baffle and oil sealing cap, and between thrust bearing, form oil suction chamber B.When stuffing box gland High Rotation Speed, lubricant oil on disc throws away by centrifugal force, and lubricant oil splashes on oil baffle, flows back to oil suction chamber along oil baffle, decrease the accumulate amount of lubricant oil in oil sealing cap one end, enhance the anti-negative pressure performance of compressor end sealing structure of turbosuperchargers.
Description
Technical field
The present invention relates to engine turbine supercharging technology field, particularly a kind of turbocharger air compressor end prevents the gas compressor end sealing configuration of oil leak when air-intake negative-pressure.
Background technique
Under the dual test of Current fuel crisis and increasingly strict automobile exhaust emission standard, turbosupercharger is widely used and promotes, and is also gradually improved with the matching technique of motor.User requires more and more higher to parameter indexs such as the power performance after turbocharger matching motor, economic performance, environmental-protecting performances, the reliability of turbosupercharger is more and more subject to the extensive concern of user, and Leakage is the principal element affecting Reliability of Turbochargers always, cause the strong interest of terminal use.
Current compressor end sealing structure of turbosuperchargers as shown in Figure 6, prevents the sealed member of oil leak from comprising compressor housings 20, oil sealing cap 21, stuffing box gland 23, thrust bearing 24, bearing (ball) cover 25, rotor shaft 27 and bearing support 28.Stuffing box gland 23 and bearing (ball) cover 25 are close to, all be fixedly mounted on be arranged in compressor housings 20 endoporus 201 rotor shaft 27 on, rotor shaft 27 is movably arranged in bearing support 28, oil sealing cap 21 is sleeved on stuffing box gland 23, sealed by seal ring 22 between itself and stuffing box gland 23, sealed by seal ring 26 between the hole wall of oil sealing cap 21 and compressor housings 20 endoporus 201; Thrust bearing 24 is sleeved on bearing (ball) cover 25.
Lubricant oil enters into oil leab from the filler opening 241 of thrust bearing 24, to lubricate and to cool the secondary component of each spin friction, finally gets back to engine oil tank from the oil outlet of thrust bearing 24.Wherein seal ring 22 and seal ring 26 lubricant oil capable of blocking leak from the gap between oil sealing cap and stuffing box gland to the direction of compressor impeller 29.
But motor is when idling and low speed and load, compressor impeller 29 back side can form negative pressure state, and lubricant oil easily leaks from the gap between oil sealing cap 21 and stuffing box gland 23 to the direction of compressor impeller 29, and namely anti-negative pressure ability is poor.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, and a kind of compressor end sealing structure of turbosuperchargers is provided.It solve existing compressor end sealing structure of turbosuperchargers when motor is in idling and low speed and load, easy leakage of oil, the problem of anti-negative pressure ability.
Technological scheme of the present invention is: a kind of compressor end sealing structure of turbosuperchargers, and it comprises stuffing box gland, oil sealing cap, thrust bearing, bearing (ball) cover, rotor shaft, compressor housings and bearing support.
Stuffing box gland and bearing (ball) cover are close to, be all fixedly mounted on be arranged in compressor housings endoporus rotor shaft on; Rotor shaft is movably arranged in bearing support; Thrust bearing is sleeved on bearing (ball) cover; Oil sealing cap is sleeved on stuffing box gland, is sealed, pass through seal ring seal between itself and stuffing box gland between itself and the hole wall of compressor housings endoporus by seal ring.
It also comprises oil baffle, oil baffle is provided with center hole, oil baffle is arranged on oil sealing cap one end near thrust bearing, and be pressed against on the step surface in compressor housings endoporus by oil sealing cap, gap is formed between the center hole of oil baffle and the periphery of stuffing box gland, form shoe cream room A between oil baffle and oil sealing cap, and between thrust bearing, form oil suction chamber B.
The further technological scheme of the present invention is: stuffing box gland is positioned at the step surface place contacted with oil sealing cap and is provided with the radial disc extended, disc is between oil baffle and oil sealing cap, and oil baffle is corresponding is provided with the position of disc the spill adapted with disc.
The present invention further technological scheme is: described stuffing box gland is provided with closure gasket groove, and described seal ring is arranged in closure gasket groove.
The present invention further technological scheme is: the quantity of described seal ring is two, is arranged on respectively in two closure gasket grooves that stuffing box gland is provided with.
The present invention further technological scheme is: two closure gasket grooves are separated by a segment distance.
The present invention further technological scheme is: oil baffle Lower Half district is provided with the spill port be communicated with oil suction chamber B by shoe cream room A.
The present invention compared with prior art tool has the following advantages:
1, oil baffle has been set up compared to existing turbocompressor end sealing configuration, stuffing box gland is provided with disc, when stuffing box gland High Rotation Speed, the lubricant oil at this place throws away by centrifugal force, lubricant oil splashes to the spill position of oil baffle, flows back to oil suction chamber along oil baffle, decreases the accumulate amount of lubricant oil in oil sealing cap one end, namely decrease the possibility that lubricant oil leaks from the gap location of oil sealing cap and stuffing box gland, namely enhance the anti-negative pressure performance of compressor end sealing structure of turbosuperchargers.
2, oil baffle is provided with spill port, during turbocharger operation, the lubricant oil entered in shoe cream room flows back to oil suction chamber by spill port, further reduce the accumulate amount of lubricant oil in oil sealing cap one end, namely further reduce lubricant oil from oil sealing cap and stuffing box gland the gap location possibility of leaking, namely further enhancing the anti-negative pressure performance of compressor end sealing structure of turbosuperchargers.
3, stuffing box gland is provided with two closure gasket grooves, two seal rings are located at wherein respectively, make the sealing configuration at this place form twice labyrinth, effectively prevent lubricant oil from the clearance leakage between oil sealing cap and stuffing box gland, further enhancing the anti-negative pressure performance of compressor end sealing structure of turbosuperchargers.
4, reduce the oil leakage fault rate of turbosupercharger, reduce the oil consumption of motor, improve the reliability of pressurized machine, overcome engine long time idling and the pressurized machine oil leakage phenomenon caused, make turbosupercharger adapt to worse working environment.
Below in conjunction with figure and embodiment the invention will be further described.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of stuffing box gland in the present invention;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the structural representation of oil baffle in the present invention;
Fig. 5 is the B-B sectional view of Fig. 4;
Fig. 6 is existing compressor end sealing structure of turbosuperchargers schematic diagram.
Embodiment
As shown in Fig. 1 to 5: a kind of compressor end sealing structure of turbosuperchargers, it comprises stuffing box gland 1, oil sealing cap 2, thrust bearing 4, bearing (ball) cover 5, oil baffle 6, rotor shaft 7, compressor housings 8 and bearing support 10.
Stuffing box gland 1 and bearing (ball) cover 5 are close to, be all fixedly mounted on be arranged in compressor housings 8 endoporus 81 rotor shaft 7 on.Rotor shaft 7 is movably arranged in bearing support 10.
Thrust bearing 4 is sleeved on bearing (ball) cover 5.
Oil sealing cap 2 is sleeved on stuffing box gland 1, is sealed, sealed between itself and stuffing box gland 1 by seal ring 3 between itself and the hole wall of compressor housings 8 endoporus 81 by seal ring 9.The quantity of seal ring 3 is two, is arranged in two closure gasket grooves 11 that stuffing box gland 1 is provided with respectively, and two closure gasket grooves 11 are separated by a segment distance, not mutually near.
Oil baffle 6 is provided with center hole 61, oil baffle 6 is arranged on oil sealing cap 2 one end near thrust bearing 4, and be pressed against on the step surface 811 in compressor housings 8 endoporus 81 by oil sealing cap 2, gap is formed between the center hole 61 of oil baffle 6 and the periphery of stuffing box gland 1, form shoe cream room A between oil baffle 6 and oil sealing cap 2, and form oil suction chamber B between thrust bearing 4.Oil baffle 6 Lower Half district is also provided with the spill port 62 be communicated with oil suction chamber B by shoe cream room A.
Stuffing box gland 1 is positioned at the step surface place contacted with oil sealing cap 2 and is provided with the radial disc 12 extended, disc 12 is between oil baffle 6 and oil sealing cap 2, and oil baffle 6 is corresponding is provided with the position of disc 12 spill 63 adapted with disc 12.
After assembling, seal ring 3 and seal ring 9 lubricant oil capable of blocking leak from the gap between oil sealing cap 2 and stuffing box gland 1 to the direction of compressor impeller.
Claims (9)
1. a compressor end sealing structure of turbosuperchargers, it comprises stuffing box gland (1), oil sealing cap (2), thrust bearing (4), bearing (ball) cover (5), rotor shaft (7), compressor housings (8) and bearing support (10);
Stuffing box gland (1) and bearing (ball) cover (5) are close to, and are all fixedly mounted on and are arranged on the rotor shaft (7) of compressor housings (8) endoporus (81); Rotor shaft (7) is movably arranged in bearing support (10); Thrust bearing (4) is sleeved on bearing (ball) cover (5); Oil sealing cap (2) is sleeved on stuffing box gland (1), sealed by seal ring (9) between itself and the hole wall of compressor housings (8) endoporus (81), sealed by seal ring (3) between itself and stuffing box gland (1);
It is characterized in that: it also comprises oil baffle (6), oil baffle (6) is provided with center hole (61), oil baffle (6) is arranged on oil sealing cap (2) one end near thrust bearing (4), and be pressed against on the step surface (811) in compressor housings (8) endoporus (81) by oil sealing cap (2), gap is formed between the center hole (61) of oil baffle (6) and the periphery of stuffing box gland (1), shoe cream room (A) is formed between oil baffle (6) and oil sealing cap (2), and form oil suction chamber (B) between thrust bearing (4).
2. compressor end sealing structure of turbosuperchargers as claimed in claim 1, it is characterized in that: stuffing box gland (1) is positioned at the step surface place contacted with oil sealing cap (2) and is provided with the radial disc (12) extended, disc (12) is positioned between oil baffle (6) and oil sealing cap (2), and oil baffle (6) is corresponding is provided with the position of disc (12) spill (63) adapted with disc (12).
3. compressor end sealing structure of turbosuperchargers as claimed in claim 1 or 2, it is characterized in that: described stuffing box gland (1) is provided with closure gasket groove (11), described seal ring (3) is arranged in closure gasket groove (11).
4. compressor end sealing structure of turbosuperchargers as claimed in claim 3, is characterized in that: the quantity of described seal ring (3) is two, is arranged on respectively in two closure gasket grooves (11) that stuffing box gland (1) is provided with.
5. compressor end sealing structure of turbosuperchargers as claimed in claim 4, is characterized in that: two closure gasket grooves (11) are separated by a segment distance.
6. compressor end sealing structure of turbosuperchargers as claimed in claim 1 or 2, is characterized in that: oil baffle (6) Lower Half district is provided with the spill port (62) be communicated with oil suction chamber (B) by shoe cream room (A).
7. compressor end sealing structure of turbosuperchargers as claimed in claim 3, is characterized in that: oil baffle (6) Lower Half district is provided with the spill port (62) be communicated with oil suction chamber (B) by shoe cream room (A).
8. compressor end sealing structure of turbosuperchargers as claimed in claim 4, is characterized in that: oil baffle (6) Lower Half district is provided with the spill port (62) be communicated with oil suction chamber (B) by shoe cream room (A).
9. compressor end sealing structure of turbosuperchargers as claimed in claim 5, is characterized in that: oil baffle (6) Lower Half district is provided with the spill port (62) be communicated with oil suction chamber (B) by shoe cream room (A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420751115.XU CN204402646U (en) | 2014-12-04 | 2014-12-04 | Compressor end sealing structure of turbosuperchargers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420751115.XU CN204402646U (en) | 2014-12-04 | 2014-12-04 | Compressor end sealing structure of turbosuperchargers |
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| CN204402646U true CN204402646U (en) | 2015-06-17 |
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| CN201420751115.XU Active CN204402646U (en) | 2014-12-04 | 2014-12-04 | Compressor end sealing structure of turbosuperchargers |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454150A (en) * | 2014-12-04 | 2015-03-25 | 湖南天雁机械有限责任公司 | Turbocharger gas compressor sealing structure |
| CN108474266A (en) * | 2015-11-13 | 2018-08-31 | Abb涡轮系统有限公司 | Device for sealing bear box and the exhaust-driven turbo-charger exhaust-gas turbo charger with such device |
| CN114150414A (en) * | 2022-01-10 | 2022-03-08 | 江苏金龙科技股份有限公司 | Self-lubricating device for moving parts of electronic dobby |
-
2014
- 2014-12-04 CN CN201420751115.XU patent/CN204402646U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454150A (en) * | 2014-12-04 | 2015-03-25 | 湖南天雁机械有限责任公司 | Turbocharger gas compressor sealing structure |
| CN108474266A (en) * | 2015-11-13 | 2018-08-31 | Abb涡轮系统有限公司 | Device for sealing bear box and the exhaust-driven turbo-charger exhaust-gas turbo charger with such device |
| CN108474266B (en) * | 2015-11-13 | 2020-10-23 | Abb涡轮系统有限公司 | Device for sealing a bearing housing and exhaust gas turbocharger having such a device |
| CN114150414A (en) * | 2022-01-10 | 2022-03-08 | 江苏金龙科技股份有限公司 | Self-lubricating device for moving parts of electronic dobby |
| CN114150414B (en) * | 2022-01-10 | 2024-08-13 | 江苏金龙科技股份有限公司 | Self-lubricating device for moving parts of electronic dobby |
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