CN209976783U - Be used for roots fan main shaft oil seal device - Google Patents
Be used for roots fan main shaft oil seal device Download PDFInfo
- Publication number
- CN209976783U CN209976783U CN201920855307.8U CN201920855307U CN209976783U CN 209976783 U CN209976783 U CN 209976783U CN 201920855307 U CN201920855307 U CN 201920855307U CN 209976783 U CN209976783 U CN 209976783U
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- main shaft
- oil
- oil seal
- shaft oil
- fan main
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- Expired - Fee Related
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Abstract
The utility model discloses a be used for roots fan main shaft oil seal device, including main shaft oil seal cover, two skeleton oil seals and bellytank body, main shaft oil seal cover interference fit is at the fan main shaft, be equipped with two shoulders on the fan main shaft, main shaft oil seal cover one end offsets with one of them the shaft shoulder, the main shaft oil seal cover other end be equipped with the block portion of another shaft shoulder block; the auxiliary oil tank body is sleeved on the fan main shaft; the utility model discloses a lubricating oil gathers in the space of twice skeleton oil blanket, and the oil gallery of main shaft oil blanket gland and the open slot of isolating ring have played the effect, and lubricating oil gathers after the certain degree this moment, can follow open slot and oil gallery and slowly flow back inside the oil tank, has guaranteed the sealed effect of second way skeleton oil blanket to effectual lubricating oil of having solved gathers the condition emergence that appears the oil leak.
Description
Technical Field
The utility model relates to a be used for roots's fan main shaft oil seal device belongs to fan technical field.
Background
The Baozhen GM80L Roots blower is widely applied to sewage treatment plants, an oil sealing device of the device mainly comprises the following parts, a main shaft oil seal sleeve) is in small interference fit with a main shaft of the blower, the main shaft oil seal sleeve and a secondary oil tank body are in small interference fit through hot installation and in-place assembly, two framework oil seals are installed side by side during installation, and no partition is arranged in the middle; along with the extension of roots's fan operating duration, lubricating oil can leak to the oil tank outside along the leakage direction, and when lubricating oil sees through the first skeleton oil blanket in right side and leaks to between the twice skeleton oil blanket, after lubricating oil leaks and gathers the space between the twice oil blanket, the skeleton oil blanket in the outside can lose effect, finally leads to lubricating oil to leak to the oil tank outside, appears the condition of oil tank oil leak.
Disclosure of Invention
In order to solve the problem, the utility model provides a be used for roots fan main shaft oil sealing device reforms transform on original sealing device's the basis, has effectively avoided lubricating oil to see through first skeleton oil blanket, gathers full space between the twice skeleton oil blanket after, leaks to the oil tank outside, and the condition emergence of oil tank oil leak appears.
The utility model discloses a be used for roots's fan main shaft oil seal device, including main shaft oil blanket cover, two skeleton oil seals and bellytank body, main shaft oil blanket cover interference fit is at the fan main shaft, be equipped with two shoulders on the fan main shaft, main shaft oil blanket cover one end offsets with one of them the shaft shoulder, the main shaft oil blanket cover other end is equipped with the block portion with another shaft shoulder block;
the fan main shaft is provided with an auxiliary oil tank body, the auxiliary oil tank body is sleeved on the fan main shaft, a main shaft oil seal gland is arranged between the auxiliary oil tank body and the fan main shaft, the main shaft oil seal gland is in interference fit with the auxiliary oil tank body, two framework oil seals are arranged between the main shaft oil seal gland and the main shaft oil seal sleeve, an isolation ring is arranged between the two framework oil seals, the isolation ring is sleeved on the main shaft oil seal sleeve, the bottom of the main shaft oil seal gland is provided with an oil return groove, an opening is formed in the isolation ring, and the opening is coincided with the oil return groove.
Furthermore, a pressing part for pressing the framework oil seal is arranged on the main shaft oil seal pressing cover.
Furthermore, a positioning part is arranged on the main shaft oil seal gland, and a positioning hole matched with the positioning part is formed in the auxiliary oil tank body.
Furthermore, a chamfer is formed in the inner ring of the positioning hole, and a chamfer ring matched with the chamfer is fixedly arranged on the positioning portion.
Compared with the prior art, the utility model discloses a be used for roots fan main shaft oil seal device, the effectual lubricating oil of having solved leaks to the space between the two skeleton oil seals through first skeleton oil blanket, the problem that slowly gathers; as the running time of the Roots blower is prolonged, the framework oil seal part is slightly worn, the framework oil seal part is in interference fit with a main shaft of the blower through the main shaft oil seal sleeve, two shaft shoulders are arranged on the main shaft of the blower, one end of the main shaft oil seal sleeve is abutted against one of the shaft shoulders, the other end of the main shaft oil seal sleeve is provided with a clamping part which is clamped with the other shaft shoulder, the main shaft oil seal sleeve can be more stably fixed on the main shaft of the blower, the stability is improved, the wear can be effectively reduced, the lubricating oil can be prevented from leaking outwards along the shaft sleeve through the first framework oil seal, the lubricating oil is slowly gathered to a gap between the two framework oil seals along with long-time work, the main shaft oil seal gland and the isolating ring play a role at the moment, the lubricating oil is gathered in the gap between the two framework oil seals, can slowly flow back to the inside of the oil tank from the open slot and the oil return groove, and the sealing effect of the second skeleton oil seal is ensured, so that the problem that lubricating oil is gathered to leak oil is effectively solved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the packaging structure of the present invention.
Fig. 3 is the schematic diagram of the structure of the main shaft oil seal gland of the present invention.
Fig. 4 is a schematic view of the isolating ring structure of the present invention.
The parts in the drawings are marked as follows: 1. a fan main shaft; 2. a spindle oil seal sleeve; 201. a fastening part; 3. framework oil seal; 4. a secondary fuel tank body; 401. positioning holes; 402. chamfering; 5. a main shaft oil seal gland; 501. an oil return groove; 502. a positioning part; 503. chamfering rings; 504. a pressing part; 6. an isolating ring; 601. and (4) opening.
Detailed Description
As shown in fig. 1 to 4, the main shaft oil sealing device for the roots blower comprises a main shaft oil seal sleeve 2, two framework oil seals 3 and an auxiliary oil tank body 4, wherein the main shaft oil seal sleeve 2 is in interference fit with a blower main shaft 1, the blower main shaft 1 is provided with two shaft shoulders, one end of the main shaft oil seal sleeve 2 abuts against one of the shaft shoulders, and the other end of the main shaft oil seal sleeve 2 is provided with a clamping part 201 clamped with the other shaft shoulder;
the cover of bellytank body 4 is on fan main shaft 1, be equipped with main shaft oil seal gland 5 between bellytank body 4 and the fan main shaft 1, main shaft oil seal gland 5 and 4 interference fit of bellytank body, two skeleton oil seals 3 are located between main shaft oil seal gland 5 and the main shaft oil seal cover 2, be equipped with isolating ring 6 between two skeleton oil seals 3, isolating ring 6 covers on main shaft oil seal cover 2, main shaft oil seal gland 5 bottom is equipped with oil gallery 501, opening 601 has been seted up on isolating ring 6, opening 601 and oil gallery 501 position coincidence.
The main shaft oil seal gland 5 is provided with a pressing part 504 for pressing the framework oil seal 3.
A positioning part 502 is arranged on the main shaft oil seal gland 5, and a positioning hole 401 matched with the positioning part 502 is formed on the auxiliary oil tank body 4; during processing, the contact surface of the oil tank and the wall plate is aligned, an original auxiliary oil tank oil seal hole is used as a positioning reference, a hole with the diameter of 100mm of an original auxiliary oil tank body 4 is processed to be 112mm in diameter, a positioning hole 401 with the diameter of 150mm and the depth of 2mm is processed on the outer side of the oil tank on the side of the pulley, and coaxiality of the positioning holes with the diameter of 112mm, the diameter of 150mm and the depth of 2mm is guaranteed during processing, and the processing is completed at one time.
When the main shaft oil seal gland 5 is processed, the coaxiality and the jumping of the inner end surface with the inner hole diameter of 100mm, the outer diameter of 112mm and the diameter of 150mm are ensured, the processing is finished at one time, and the framework oil seal 3 is arranged at the position with the inner hole diameter of 100mm and the depth of 26 mm; an oil return groove 501 is formed in the bottom of the main shaft oil seal gland 5, is located in the bottom of the main shaft oil seal gland 5, is formed leftwards from the right end face, and is 18mm in depth and 8mm in width.
The positioning hole 401 has a chamfer 402 on the inner ring, and a chamfer ring 503 matching the chamfer 402 is fixed on the positioning part 502.
The spacer ring 6 is a steel ring having an outer diameter of 100mm, an inner diameter of 90mm and a width of 6mm, and is cut off after the completion of the processing, and the opening 601 is cut open to have a width of 8 mm.
Compared with the prior art, the utility model discloses a be used for roots fan main shaft oil seal device, the effectual lubricating oil of having solved leaks to the space between the two skeleton oil seals 3 through first skeleton oil seal 3, the problem that slowly gathers; along with the lengthening of the running time of the Roots blower, the framework oil seal 3 is slightly worn, the spindle oil seal 2 is in interference fit with the blower spindle 1, two shaft shoulders are arranged on the blower spindle 1, one end of the spindle oil seal 2 is abutted against one of the shaft shoulders, the other end of the spindle oil seal 2 is provided with a clamping part 201 which is clamped with the other shaft shoulder, the spindle oil seal 2 can be more stably fixed on the blower spindle 1, the stability is improved, the wear can be effectively reduced, the leakage of lubricating oil along the shaft sleeve through the first framework oil seal 3 is reduced, the lubricating oil is slowly accumulated to a gap between the two framework oil seals 3 along with long-time working, the spindle oil seal gland 5 and the isolating ring 6 play a role at the moment, the lubricating oil is accumulated to the gap between the two framework oil seals 3, the oil return groove 501 of the spindle oil seal gland 5 and the open groove 601 of the isolating ring, at this moment, after the lubricating oil is gathered to a certain degree, the lubricating oil can slowly flow back to the inside of the oil tank from the open slot 601 and the oil return slot 501, the sealing effect of the second framework oil seal 3 is ensured, and therefore the problem that the lubricating oil is gathered and oil leakage occurs is effectively solved.
The above-mentioned embodiment is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles of the present invention are included in the claims of the present invention.
Claims (4)
1. The utility model provides a be used for roots's fan main shaft oil seal device which characterized in that: the fan main shaft oil seal comprises a main shaft oil seal sleeve (2), two framework oil seals (3) and an auxiliary oil tank body (4), wherein the main shaft oil seal sleeve (2) is in interference fit with a fan main shaft (1), two shaft shoulders are arranged on the fan main shaft (1), one end of the main shaft oil seal sleeve (2) is abutted against one of the shaft shoulders, and the other end of the main shaft oil seal sleeve (2) is provided with a clamping part (201) clamped with the other shaft shoulder;
the auxiliary oil tank body (4) is sleeved on the fan main shaft (1), a main shaft oil seal gland (5) is arranged between the auxiliary oil tank body (4) and the fan main shaft (1), the main shaft oil seal gland (5) is in interference fit with the auxiliary oil tank body (4), two framework oil seals (3) are arranged between the main shaft oil seal gland (5) and the main shaft oil seal sleeve (2), two isolating rings (6) are arranged between the framework oil seals (3), the isolating rings (6) are sleeved on the main shaft oil seal sleeve (2), an oil return groove (501) is arranged at the bottom of the main shaft oil seal gland (5), an opening (601) is formed in the isolating rings (6), and the opening (601) is overlapped with the oil return groove (501).
2. The main shaft oil sealing device for the roots blower as claimed in claim 1, wherein: and a pressing part (504) for pressing the framework oil seal (3) is arranged on the main shaft oil seal pressing cover (5).
3. The main shaft oil sealing device for the roots blower according to claim 1 or 2, wherein: the main shaft oil seal gland (5) is provided with a positioning part (502), and the auxiliary oil tank body (4) is provided with a positioning hole (401) matched with the positioning part (502).
4. The main shaft oil sealing device for the Roots blower according to claim 3, wherein: a chamfer (402) is formed in the inner ring of the positioning hole (401), and a chamfer ring (503) matched with the chamfer (402) is fixedly arranged on the positioning part (502).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920855307.8U CN209976783U (en) | 2019-06-09 | 2019-06-09 | Be used for roots fan main shaft oil seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920855307.8U CN209976783U (en) | 2019-06-09 | 2019-06-09 | Be used for roots fan main shaft oil seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209976783U true CN209976783U (en) | 2020-01-21 |
Family
ID=69265641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920855307.8U Expired - Fee Related CN209976783U (en) | 2019-06-09 | 2019-06-09 | Be used for roots fan main shaft oil seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209976783U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111409099A (en) * | 2020-05-12 | 2020-07-14 | 珠海格力智能装备有限公司 | Robot joint and robot with same |
-
2019
- 2019-06-09 CN CN201920855307.8U patent/CN209976783U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111409099A (en) * | 2020-05-12 | 2020-07-14 | 珠海格力智能装备有限公司 | Robot joint and robot with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200121 Termination date: 20200609 |