CN215719479U - Gear pump shaft sleeve - Google Patents
Gear pump shaft sleeve Download PDFInfo
- Publication number
- CN215719479U CN215719479U CN202121586242.5U CN202121586242U CN215719479U CN 215719479 U CN215719479 U CN 215719479U CN 202121586242 U CN202121586242 U CN 202121586242U CN 215719479 U CN215719479 U CN 215719479U
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- ring
- gear pump
- shaft sleeve
- wall
- shaft hole
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Abstract
The gear pump shaft sleeve comprises a shaft sleeve body (1) in an 8-shaped shape, and a driving gear shaft hole (2) and a driven gear supporting hole (3) which are arranged on the shaft sleeve body (1). A mechanical sealing ring (5) is arranged on the inner wall of the driving gear shaft hole (2), and a graphite bearing (11) is arranged on the inner wall of the driven gear supporting hole (3); a stop groove (12) is arranged on the end surface of the static ring (6) of the mechanical sealing ring (5); the outer end of the driving gear shaft hole (2) is provided with a sealing cover (4) with a shaft hole, and the inner wall of the sealing cover (4) is provided with a stop block (13). The mechanical sealing ring is connected with the shaft of the gear pump, the end faces of the static ring and the dynamic ring which slide relatively keep fit under the action of fluid pressure and the elasticity (or magnetic force) of the compensation mechanism and are matched with auxiliary sealing to achieve the purpose of leakage resistance, the sealing effect of the shaft sleeve is improved, and the service life of the shaft sleeve is prolonged. The graphite bearing has stable chemical property and good self-lubricating effect, and avoids the problem of poor lubrication and even locking of the bearing caused by aging and deterioration of lubricating grease.
Description
Technical Field
The utility model relates to the technical field of gear pump shafts, in particular to a gear pump shaft sleeve.
Background
The shaft sleeve of the gear pump is one of the main parts of the gear pump, is arranged at two ends of a gear which runs at a high speed and plays a role in supporting a bearing. CN212744322U discloses a shaft sleeve of gear pump sets up antifriction bearing on the inner wall of through-hole, all sets up the mode in low-pressure groove and high-pressure groove on the both ends face of body, improves the effect of alleviating the trapped oil, but it does not adopt mechanical seal ring, and sealing performance is relatively poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a gear pump shaft sleeve which is good in sealing performance and prolonged in service life.
In order to solve the technical problem, the utility model provides a gear pump shaft sleeve which comprises a shaft sleeve body in an 8-shaped shape, wherein a driving gear shaft hole and a driven gear supporting hole are formed in the shaft sleeve body. The inner wall of the driving gear shaft hole is provided with a mechanical sealing ring, and the inner wall of the driven gear supporting hole is provided with a graphite bearing; a stop groove is arranged on the end surface of the static ring of the mechanical sealing ring; the outer end of the shaft hole of the driving gear is provided with a sealing cover with a shaft hole, and the inner wall of the sealing cover is provided with a stop block.
Furthermore, the inner wall of the static ring is provided with a graphite ring.
Furthermore, a movable ring seat is arranged on the movable ring. The opposite surfaces of the static ring and the movable ring seat are jointed.
Furthermore, a sealing ring is arranged in an annular groove of the movable ring of the mechanical sealing ring.
Further, the stop groove is arc-shaped. The stop block is arc-shaped. The stop groove is matched with the stop block.
The utility model has the following beneficial effects:
through the hub connection of mechanical seal ring and gear pump, its quiet ring realizes sealed with the terminal surface of rotating ring seat relative slip, reaches the purpose that leaks, improves the sealed effect of axle sleeve, increases axle sleeve life.
The graphite bearing has stable chemical property and good self-lubricating effect, and avoids the problem of poor lubrication and even locking of the bearing caused by aging and deterioration of lubricating grease.
The graphite ring is corrosion-resistant and wear-resistant, and the service life of the shaft sleeve is further prolonged.
The stop groove is matched with the stop block, so that the static ring is prevented from rotating, and the mechanical sealing effect is improved.
Drawings
FIG. 1 is a front view of the structure of the present invention.
Fig. 2 is a structural sectional view of the present invention.
In the figure, 1, a shaft sleeve body, 2, a driving gear shaft hole, 3, a driven gear supporting hole, 4, a sealing cover, 5, a mechanical sealing ring, 6, a static ring, 7, a dynamic ring, 8, a graphite ring, 9, an annular groove, 10, a sealing ring, 11, a graphite bearing, 12, a stop groove, 13, a stop block and 14, a dynamic ring seat are arranged.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in figure 1, the gear pump shaft sleeve comprises a shaft sleeve body 1 in an 8-shaped shape, and a driving gear shaft hole 2 and a driven gear supporting hole 3 are formed in the shaft sleeve body 1. The inner wall of the driving gear shaft hole 2 is provided with a mechanical sealing ring 5, and a movable ring 7 of the mechanical sealing ring 5 is connected with a shaft of the gear pump. The graphite bearing 11 is arranged on the inner wall of the driven gear supporting hole 3. The graphite bearing 11 has stable chemical property and good self-lubricating effect, and avoids the problem of poor lubrication and even locking of the bearing caused by aging and deterioration of lubricating grease.
As shown in fig. 2, the movable ring 7 is provided with a movable ring seat 14. The opposite surfaces of the static ring 6 and the movable ring seat 14 are jointed. The end face of the static ring 6 of the mechanical sealing ring 5 is jointed with the end face of the movable ring seat 14 to form a friction surface. The end faces of the static ring 6 and the movable ring seat 14 which slide relatively keep fit under the action of fluid pressure and the elastic force of the compensation mechanism of the mechanical seal ring 5 and are matched with auxiliary seal to achieve the purpose of leakage resistance, the sealing effect of the shaft sleeve is improved, and the service life of the shaft sleeve is prolonged. The end surface of the static ring 6 of the mechanical sealing ring 5 is provided with a stop groove 12; the outer end of the shaft hole 2 of the driving gear is provided with a sealing cover 4 with a shaft hole, and the inner wall of the sealing cover 4 is provided with a stop block 13. The stopper groove 12 is arc-shaped. The stopper 13 is arc-shaped. The stop groove 12 is matched with the stop block 13, so that the static ring 6 is prevented from rotating, and the mechanical sealing effect is improved. The inner wall of the static ring 6 is provided with a graphite ring 8. The graphite ring 8 is corrosion-resistant and wear-resistant, and the service life of the shaft sleeve is further prolonged. A sealing ring 10 is arranged in an annular groove 9 of a movable ring 7 of the mechanical sealing ring 5, so that the sealing effect between the movable ring 7 and a movable ring seat 14 is improved.
While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (8)
1. Gear pump axle sleeve is including the axle sleeve body (1) that the shape is "8" style of calligraphy, sets up driving gear shaft hole (2) and driven gear support hole (3) on axle sleeve body (1), its characterized in that: a mechanical sealing ring (5) is arranged on the inner wall of the driving gear shaft hole (2), and a graphite bearing (11) is arranged on the inner wall of the driven gear supporting hole (3); a stop groove (12) is arranged on the end surface of the static ring (6) of the mechanical sealing ring (5); the outer end of the driving gear shaft hole (2) is provided with a sealing cover (4) with a shaft hole, and the inner wall of the sealing cover (4) is provided with a stop block (13).
2. The gear pump hub as set forth in claim 1, wherein: the inner wall of the static ring (6) is provided with a graphite ring (8).
3. The gear pump hub as set forth in claim 1, wherein: and a sealing ring (10) is arranged in an annular groove (9) of a movable ring (7) of the mechanical sealing ring (5).
4. The gear pump hub as set forth in claim 3, wherein: the movable ring (7) is provided with a movable ring seat (14).
5. The gear pump hub as set forth in claim 2, wherein: the opposite surfaces of the static ring (6) and the movable ring seat (14) are jointed.
6. The gear pump hub as set forth in claim 1, wherein: the stop groove (12) is arc-shaped.
7. The gear pump hub as set forth in claim 1, wherein: the stop block (13) is arc-shaped.
8. The gear pump hub as set forth in claim 4, wherein: the stop groove (12) is matched with the stop block (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121586242.5U CN215719479U (en) | 2021-07-13 | 2021-07-13 | Gear pump shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121586242.5U CN215719479U (en) | 2021-07-13 | 2021-07-13 | Gear pump shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215719479U true CN215719479U (en) | 2022-02-01 |
Family
ID=79986433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121586242.5U Active CN215719479U (en) | 2021-07-13 | 2021-07-13 | Gear pump shaft sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215719479U (en) |
-
2021
- 2021-07-13 CN CN202121586242.5U patent/CN215719479U/en active Active
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