CN222880290U - Speed-increasing gear box shaft seal - Google Patents
Speed-increasing gear box shaft seal Download PDFInfo
- Publication number
- CN222880290U CN222880290U CN202421815628.2U CN202421815628U CN222880290U CN 222880290 U CN222880290 U CN 222880290U CN 202421815628 U CN202421815628 U CN 202421815628U CN 222880290 U CN222880290 U CN 222880290U
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- ring
- groove
- threaded rod
- sealing groove
- shaft seal
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Abstract
The utility model discloses a speed-increasing gearbox shaft seal which comprises a gear box cover and a rotating shaft, wherein one side of the gear box cover is integrally provided with a sealing groove, the gear box cover is in penetrating rotation connection with a main threaded rod positioned above the sealing groove, the rotating shaft is in penetrating rotation connection with the middle part of the sealing groove, an elastic sealing ring is arranged in the sealing groove, a compression ring in abutting contact with the elastic sealing ring is arranged in the sealing groove, the other side of the compression ring is integrally connected with a connecting claw, and the tail end of the connecting claw is in penetrating threaded connection with the main threaded rod. Through setting up the seal groove, establish the elastic seal ring cover in the outside of pivot, rotate the main threaded rod for the connecting jaw promotes the clamping ring and supports tightly with elastic seal ring, promotes sealed effect, makes elastic seal ring and the radial pressure of pivot keep invariable, has both kept traditional shaft seal structure, has reduced pivot pivoted resistance again.
Description
Technical Field
The utility model relates to the technical field of shaft seals, in particular to a speed-increasing gearbox shaft seal.
Background
The speed increasing gearbox is one of the most important components of the compressor assembly. The power transmission in the compressor unit is carried out on the compressor unit, and the quality of the power transmission directly influences the use of the compressor. Reasonable and effective shaft seal design can avoid leakage of compressor lubricating oil and has important function for ensuring continuous operation of the compressor. In the prior art, a skeletal sealing structure is generally employed.
The framework sealing structure has the advantages that if the radial force is too small, leakage is easy to occur, and if the radial force is too large, dry friction is easy to occur, so that the lip is burnt out.
To this end we propose a step-up gearbox shaft seal.
Disclosure of utility model
The utility model aims to provide a speed-increasing gear box shaft seal so as to solve the problems in the background art.
In order to achieve the above purpose, the utility model provides the technical scheme that the speed-increasing gearbox shaft seal comprises a gearbox cover and a rotating shaft, wherein one side of the gearbox cover is integrally provided with a sealing groove, the gearbox cover is in penetrating rotation connection with a main threaded rod positioned above the sealing groove, the rotating shaft is in penetrating rotation connection with the middle part of the sealing groove, an elastic sealing ring is arranged in the sealing groove, a compression ring in abutting contact with the elastic sealing ring is arranged in the sealing groove, the other side of the compression ring is integrally connected with a connecting claw, and the tail end of the connecting claw is in penetrating threaded connection with the main threaded rod.
Optionally, the inboard of gear case lid is provided with the rotation seat in an organic whole, the inboard rotation of gear case lid is connected with the follow-up threaded rod that is located the rotation seat inside, the inside rotation of rotation seat is connected with the ring gear.
Optionally, the end of the main threaded rod is fixedly provided with a driving gear, the driving gear is meshed with the toothed ring, the end of the follow-up threaded rod is fixedly provided with a follow-up gear, and the follow-up gear is meshed with the toothed ring.
Optionally, logical groove has been seted up to the inside of elastic seal ring, logical groove is close to one side of clamp plate, the connecting hole with logical groove intercommunication has been seted up to the inner wall of elastic seal ring, logical groove intercommunication is provided with lubricating oil pipe.
Optionally, a hexagonal groove is formed in a section of the main threaded rod above the sealing groove.
Optionally, the follow-up threaded rod is connected with the terminal penetrating threads of two other connecting claws, and three connecting claws evenly distributed is in one side of the clamping ring.
Optionally, the rotation seat, the ring gear and the pivot coaxial line sets up, the rotation junction of seal groove and pivot is provided with O type circle.
Compared with the prior art, the utility model has the beneficial effects that:
1. This step up gearbox bearing seal is established in the outside of pivot through setting up the seal groove with elastic seal ring cover, rotates main threaded rod for the main gear drives the ring gear and rotates, and then drives follower gear and follow-up threaded rod and carry out synchronous rotation, and then drives the connecting jaw and remove, makes the connecting jaw promote the clamping ring and support tightly with elastic seal ring, promotes sealed effect, makes elastic seal ring keep invariable with the radial pressure of pivot, has both kept traditional bearing seal structure, has reduced pivot pivoted resistance again.
2. This step-up gearbox bearing seal through setting up logical groove, through lubricating oil pipe to logical inslot portion transport lubricating oil, and the inside lubricating oil of logical groove flows into the rotation joint face of pivot and elastic sealing ring through the connecting hole, lubricates, along with the rotation of pivot and under the effect of capillary phenomenon, and lubricating oil fills the joint face of pivot and elastic sealing ring, further reduces frictional force.
Drawings
FIG. 1 is a schematic view of the overall structure of a shaft seal of a step-up gearbox of the present utility model;
FIG. 2 is a schematic view of a gear box cover of a shaft seal of a step-up gear box according to the present utility model;
FIG. 3 is a schematic view of the seal groove of the shaft seal of the step-up gearbox of the present utility model;
fig. 4 is an enlarged view of the shaft seal of the step-up gearbox of the present utility model at a in fig. 3.
In the figure, 1, a gear box cover, 2, a rotating shaft, 3, a sealing groove, 4, an elastic sealing ring, 5, a compression ring, 6, a connecting claw, 7, a main threaded rod, 8, a driving gear, 9, a follow-up threaded rod, 10, a follow-up gear, 11, a rotating seat, 12, a toothed ring, 13, a through groove, 14, a connecting hole, 15, a lubricating oil pipe and 16, an O-shaped ring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 4, the present utility model provides a speed-increasing gearbox shaft seal, including a gear box cover 1 and a rotating shaft 2, one side of the gear box cover 1 is integrally provided with a seal groove 3, the gear box cover 1 is connected with a main threaded rod 7 located above the seal groove 3 in a penetrating rotation manner, the rotating shaft 2 is connected with the middle part of the seal groove 3 in a penetrating rotation manner, an elastic seal ring 4 is arranged inside the seal groove 3, a compression ring 5 in abutting contact with the elastic seal ring 4 is arranged inside the seal groove 3, the other side of the compression ring 5 is integrally connected with a connecting claw 6, the tail end of the connecting claw 6 is connected with the main threaded rod 7 in a penetrating threaded manner, through the arrangement of the seal groove 3, the elastic seal ring 4 is sleeved outside the rotating shaft 2, the main threaded rod 7 is rotated, so that the main threaded rod 7 is rotated, the main gear 8 drives a toothed ring 12 to rotate, further drives a follower gear 10 and a follower threaded rod 9 to synchronously rotate, and further drives the connecting claw 6 to move, so that the connecting claw 6 pushes the elastic seal ring 5 to abut against the elastic seal ring 4, thereby improving the sealing effect, keeping the radial pressure of the elastic seal ring 4 and the rotating shaft seal 2 constant, not only preserving the conventional shaft seal structure, but also reducing the resistance to rotate.
The inside of the gear box cover 1 is integrally provided with a rotating seat 11, the inside of the gear box cover 1 is rotationally connected with a follow-up threaded rod 9 positioned inside the rotating seat 11, and the inside of the rotating seat 11 is rotationally connected with a toothed ring 12.
The tail end of the main threaded rod 7 is fixedly provided with a driving gear 8, the driving gear 8 is meshed with a toothed ring 12, the tail end of the follow-up threaded rod 9 is fixedly provided with a follow-up gear 10, and the follow-up gear 10 is meshed with the toothed ring 12.
The inside of elastic sealing ring 4 has been seted up logical groove 13, logical groove 13 is close to one side of clamp plate, the connecting hole 14 with logical groove 13 intercommunication has been seted up to the inner wall of elastic sealing ring 4, logical groove 13 intercommunication is provided with lubricating oil pipe 15, through setting up logical groove 13, through lubricating oil pipe 15 to the inside transport lubricating oil of logical groove 13, the inside lubricating oil of logical groove 13 flows into the rotation joint face of pivot 2 and elastic sealing ring 4 through connecting hole 14, lubricate, along with the rotation of pivot 2 and under the effect of capillary phenomenon, lubricating oil fills the joint face of full pivot 2 and elastic sealing ring 4, further reduce frictional force.
A hexagonal groove is formed in a section of the main threaded rod 7 above the sealing groove 3.
The follow-up threaded rod 9 is in threaded connection with the tail ends of the other two connecting claws 6, and the three connecting claws 6 are uniformly distributed on one side of the compression ring 5.
The rotating seat 11, the toothed ring 12 and the rotating shaft 2 are coaxially arranged, and an O-shaped ring 16 is arranged at the rotating connection position of the sealing groove 3 and the rotating shaft 2.
Working principle:
The elastic sealing ring 4 is sleeved outside the rotating shaft 2, the main threaded rod 7 is rotated, the driving gear 8 drives the toothed ring 12 to rotate, the follow-up gear 10 and the follow-up threaded rod 9 are driven to synchronously rotate, the connecting claw 6 is driven to move, the connecting claw 6 pushes the compression ring 5 to be abutted against the elastic sealing ring 4, the sealing effect is improved, the radial pressure between the elastic sealing ring 4 and the rotating shaft 2 is kept constant, the traditional shaft seal structure is reserved, the rotating resistance of the rotating shaft 2 is reduced, lubricating oil is conveyed to the inside of the through groove 13 through the lubricating oil pipe 15, the lubricating oil inside the through groove 13 flows into the rotating connection surface of the rotating shaft 2 and the elastic sealing ring 4 through the connecting hole 14 to lubricate, and the connecting surface of the rotating shaft 2 and the elastic sealing ring 4 is filled with the lubricating oil along with the rotation of the rotating shaft 2 and under the action of capillary phenomenon, so that the friction force is further reduced.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421815628.2U CN222880290U (en) | 2024-07-30 | 2024-07-30 | Speed-increasing gear box shaft seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421815628.2U CN222880290U (en) | 2024-07-30 | 2024-07-30 | Speed-increasing gear box shaft seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222880290U true CN222880290U (en) | 2025-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421815628.2U Active CN222880290U (en) | 2024-07-30 | 2024-07-30 | Speed-increasing gear box shaft seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222880290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120312811A (en) * | 2025-06-16 | 2025-07-15 | 浙江三凯机电有限公司 | A reducer shaft seal structure with compensation function |
-
2024
- 2024-07-30 CN CN202421815628.2U patent/CN222880290U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120312811A (en) * | 2025-06-16 | 2025-07-15 | 浙江三凯机电有限公司 | A reducer shaft seal structure with compensation function |
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