CN216975766U - High-efficient sealed centrifugal screw rod shaft seal - Google Patents
High-efficient sealed centrifugal screw rod shaft seal Download PDFInfo
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- CN216975766U CN216975766U CN202120714678.1U CN202120714678U CN216975766U CN 216975766 U CN216975766 U CN 216975766U CN 202120714678 U CN202120714678 U CN 202120714678U CN 216975766 U CN216975766 U CN 216975766U
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- end cover
- ring
- bevel gear
- rotor
- cylinder body
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Abstract
The utility model provides a shaft seal of a high-efficiency sealing centrifugal screw machine, which comprises a cavity, a rotor and a front end cover, wherein the rotor is arranged in the cavity; the front part of the rotor is arranged in the front end cover; the other end of the rotor is arranged in the cavity; the cavity is hermetically connected with the front end cover; the end of the rotor in the front end cover is connected with a bidirectional booster-type sealing device; the bidirectional booster-type sealing device comprises a cylinder body fixedly connected with the end head of the rotor; the cylinder body is connected with a second cylinder body through a rotating part; a first sealing device and a second sealing device are arranged between the second cylinder and the front end cover; the first sealing device comprises a limiting ring arranged on the surface of the second cylinder body and a limiting groove on the front end cover; the limiting ring is arranged in the limiting groove; the second sealing device comprises a rotating ring arranged on the surface of the second cylinder body, a circular ring arranged on the surface of the rotating ring and a ring groove arranged on the front end cover; the ring is arranged in the ring groove, so that oil leakage can be reduced.
Description
Technical Field
The utility model provides a shaft seal, and particularly relates to a shaft seal of a high-efficiency sealing centrifugal screw machine.
Background
Because the starting of China is late, the variety, the performance, the quality and the technical level of a screw machine have certain gaps with the foreign countries, wherein the shaft seal technology is one of main influence factors of the screw machine, and the problem of how to improve the reliability of a shaft seal structure is the most troublesome problem in the domestic screw machine market.
SUMMERY OF THE UTILITY MODEL
The shaft seal of the high-efficiency sealing centrifugal screw machine is simple in structure and convenient to use, and oil leakage can be reduced.
The utility model provides a shaft seal of a high-efficiency sealing centrifugal screw machine, which comprises a cavity, a rotor and a front end cover, wherein the rotor is arranged in the cavity; the front part of the rotor is arranged in the front end cover; the other end of the rotor is arranged in the cavity; the cavity is hermetically connected with the front end cover; the end of the rotor in the front end cover is connected with a bidirectional supercharged sealing device; the bidirectional supercharged sealing device comprises a cylinder body fixedly connected with the end head of the rotor; the cylinder body is connected with a second cylinder body through a rotating part; the rotating part comprises a first connecting rod fixedly arranged at the end of the cylinder body; the other end of the first connecting rod is rotatably connected with a bevel gear; a second rotating gear is meshed with the bevel gear; a second connecting rod connected with the front end cover is arranged in the center of the second rotating gear in a penetrating manner; a third bevel gear is meshed with the second rotating gear; a third connecting rod penetrates through the center of the third bevel gear; the third connecting rod is fixedly connected with the second cylinder; a fourth bevel gear is meshed with the third bevel gear; the bevel gear and the third bevel gear are respectively meshed with a fourth bevel gear; a fourth connecting rod penetrates through the center of the fourth bevel gear; a first sealing device and a second sealing device are arranged between the second cylinder and the front end cover; the first sealing device comprises a limiting ring arranged on the surface of the second cylinder body and a limiting groove on the front end cover; the limiting ring is arranged in the limiting groove; the second sealing device comprises a rotating ring arranged on the surface of the second cylinder body, a circular ring arranged on the surface of the rotating ring and a ring groove arranged on the front end cover; the ring is in the ring groove.
The barrel and the second barrel are respectively connected with the front end cover in a rotating mode through the rotating assembly.
The rotating assembly comprises a sliding groove arranged on the front end cover and sliding plates respectively arranged on the barrel body and the second barrel body.
The second connecting rod is rotationally connected with the front end cover; the fourth connecting rod is rotatably connected with the front end cover.
The size of the limiting ring is smaller than that of the limiting groove; the size of the circular ring is smaller than that of the ring groove.
And a sealing ring is arranged between one end of the second cylinder body, which is far away from the cylinder body, and the front end cover.
The rotor is connected with the cylinder through a set screw.
The utility model has the beneficial effects that: the high-efficiency sealing centrifugal screw machine shaft seal of the equipment for preventing and treating the plant diseases and insect pests, which is provided by the utility model, has the advantages of simple structure and convenience in use, and can reduce oil leakage.
Drawings
FIG. 1 is a sectional view of the shaft seal of the high-efficiency sealing centrifugal screw machine according to the present invention.
FIG. 2 is a cross-sectional view of a rotating member of the shaft seal of the high efficiency sealing centrifugal screw machine of the present invention.
FIG. 3 is a cross-sectional view of the first and second sealing devices for efficiently sealing the shaft seal of the centrifugal screw machine according to the present invention.
1. The device comprises a cavity, 2, a rotor, 3, a front end cover, 4, a bidirectional booster type sealing device, 5, a cylinder, 6, a rotating part, 7, a second cylinder, 8, a first connecting rod, 9, a bevel gear, 10, a second bevel gear, 11, a second connecting rod, 12, a third bevel gear, 13, a third connecting rod, 14, a fourth bevel gear, 15, a first sealing device, 16, a second sealing device, 17, a limiting ring, 18, a limiting groove, 19, a rotating ring, 20, a circular ring, 21, a circular groove, 22, a sealing ring, 23 and a set screw; 24. the fourth connecting rod
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
According to the shaft seal of the high-efficiency sealing centrifugal screw machine shown in the figures 1, 2 and 3, the shaft seal comprises a cavity 1, a rotor 2 and a front end cover 3; the front part of the rotor 2 is arranged in the front end cover 3; the other end of the rotor 2 is arranged in the cavity 1; the cavity 1 is hermetically connected with the front end cover 3; the end of the rotor 2 in the front end cover 3 is connected with a bidirectional booster-type sealing device 4; the bidirectional booster-type sealing device 4 comprises a cylinder body 5 fixedly connected with the end of the rotor 2; the cylinder 5 is connected with a second cylinder 7 through a rotating part 6; the rotating part 6 comprises a first connecting rod 8 fixedly arranged at the end of the cylinder 5; the other end of the first connecting rod 8 is rotatably connected with a bevel gear 9; a second rotating gear 10 is meshed with the bevel gear 9; a second connecting rod 11 connected with the front end cover 3 is arranged in the center of the second rotating gear 10 in a penetrating manner; a third bevel gear 12 is meshed with the second rotating gear 10; a third connecting rod 13 penetrates through the center of the third bevel gear 12; the third connecting rod 13 is fixedly connected with the second cylinder 7; a fourth bevel gear 14 is meshed with the third bevel gear 12; the bevel gear 9 and the third bevel gear 12 are respectively meshed with a fourth bevel gear 14; a fourth connecting rod 24 penetrates through the center of the fourth bevel gear 14; a first sealing device 15 and a second sealing device 16 are arranged between the second cylinder 7 and the front end cover 3; the first sealing device 15 comprises a limiting ring 17 arranged on the surface of the second cylinder 7 and a limiting groove 18 on the front end cover 3; the limiting ring 17 is arranged in a limiting groove 18; the second sealing device 16 comprises a rotary ring 19 arranged on the surface of the second cylinder 7, a circular ring 20 arranged on the surface of the rotary ring 19 and a ring groove 21 arranged on the front end cover 3; the ring 20 is arranged in the ring groove 21; the cylinder 5 and the second cylinder 7 are respectively in rotary connection with the front end cover 3 through a rotary component; the rotating assembly comprises a sliding chute arranged on the front end cover 3 and sliding plates respectively arranged on the cylinder body 5 and the second cylinder body 7; the second connecting rod 11 is rotatably connected with the front end cover 3; the fourth connecting rod 24 is rotatably connected with the front end cover 3; the size of the limiting ring 17 is smaller than that of the limiting groove 18; the size of the circular ring 20 is smaller than that of the ring groove 21; a sealing ring 22 is arranged between one end of the second cylinder 7 far away from the cylinder 5 and the front end cover 3; the rotor 2 is connected with the cylinder 5 through a set screw 23.
The principle of the utility model is as follows: the second cylinder 7 rotates to drive the third connecting rod 13 to rotate to drive the third bevel gear 12 to rotate to drive the second rotating gear 11 and the fourth bevel gear 14 to rotate to drive the first bevel gear 9 to rotate, the rotating directions of the first bevel gear 9 and the third bevel gear 13 are opposite, so that the pressure in the middle area between the first cylinder 5 and the second cylinder 7 is greater than the pressure at two ends to avoid oil leakage, then the first sealing device 15 and the second sealing device 16 form a second and a third defensive lines, the limiting ring 17 can block the oil leakage, the size of the limiting ring 17 is smaller than that of the limiting groove 18 to avoid contact friction, the service life is prolonged, the leaked oil can pass through the annular groove 21 and the circular ring 22, and the leaked oil can be collected by the annular groove 21 to avoid leakage, so that the third defensive line is formed.
Although the present invention has been described with respect to the preferred embodiments, it should be understood that the utility model is not limited thereto, and that various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the utility model.
Claims (7)
1. The utility model provides a high-efficient sealed centrifugal screw rod machine bearing seal which characterized in that: comprises a cavity (1), a rotor (2) and a front end cover (3); the front part of the rotor (2) is arranged in the front end cover (3); the other end of the rotor (2) is arranged in the cavity (1); the cavity (1) is hermetically connected with the front end cover (3); the end of the rotor (2) in the front end cover (3) is connected with a bidirectional booster-type sealing device (4); the bidirectional booster-type sealing device (4) comprises a cylinder body (5) fixedly connected with the end of the rotor (2); the cylinder body (5) is connected with a second cylinder body (7) through a rotating piece (6); the rotating part (6) comprises a first connecting rod (8) fixedly arranged at the end of the cylinder body (5); the other end of the first connecting rod (8) is rotatably connected with a bevel gear (9); a second rotating gear (10) is meshed on the bevel gear (9); a second connecting rod (11) connected with the front end cover (3) penetrates through the center of the second rotating gear (10); a third bevel gear (12) is meshed with the second rotating gear (10); a third connecting rod (13) penetrates through the center of the third bevel gear (12); the third connecting rod (13) is fixedly connected with the second cylinder (7); a fourth bevel gear (14) is meshed with the third bevel gear (12); the bevel gear (9) and the third bevel gear (12) are respectively meshed with a fourth bevel gear (14); a fourth connecting rod (24) penetrates through the center of the fourth bevel gear (14); a first sealing device (15) and a second sealing device (16) are arranged between the second cylinder (7) and the front end cover (3); the first sealing device (15) comprises a limiting ring (17) arranged on the surface of the second cylinder body (7) and a limiting groove (18) on the front end cover (3); the limiting ring (17) is arranged in the limiting groove (18); the second sealing device (16) comprises a rotating ring (19) arranged on the surface of the second cylinder body (7), a circular ring (20) arranged on the surface of the rotating ring (19) and a ring groove (21) arranged on the front end cover (3); the ring (20) is arranged in the ring groove (21).
2. The shaft seal of the high-efficiency sealing centrifugal screw machine according to claim 1, characterized in that: the barrel (5) and the second barrel (7) are respectively connected with the front end cover (3) in a rotating mode through a rotating assembly.
3. The shaft seal of the high-efficiency sealing centrifugal screw machine according to claim 2, characterized in that: the rotating assembly comprises a sliding groove arranged on the front end cover (3) and sliding plates respectively arranged on the cylinder body (5) and the second cylinder body (7).
4. The shaft seal of the high-efficiency sealing centrifugal screw machine according to claim 1, characterized in that: the second connecting rod (11) is rotationally connected with the front end cover (3); the fourth connecting rod (24) is rotatably connected with the front end cover (3).
5. The shaft seal of the high-efficiency sealing centrifugal screw machine according to claim 1, characterized in that: the size of the limiting ring (17) is smaller than that of the limiting groove (18); the size of the circular ring (20) is smaller than that of the ring groove (21).
6. The shaft seal of the high-efficiency sealing centrifugal screw machine according to claim 1, wherein: and a sealing ring (22) is arranged between one end of the second cylinder (7) far away from the cylinder (5) and the front end cover (3).
7. The shaft seal of the high-efficiency sealing centrifugal screw machine according to claim 1, wherein: the rotor (2) is connected with the cylinder (5) through a set screw (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120714678.1U CN216975766U (en) | 2021-04-08 | 2021-04-08 | High-efficient sealed centrifugal screw rod shaft seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120714678.1U CN216975766U (en) | 2021-04-08 | 2021-04-08 | High-efficient sealed centrifugal screw rod shaft seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216975766U true CN216975766U (en) | 2022-07-15 |
Family
ID=82337291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120714678.1U Active CN216975766U (en) | 2021-04-08 | 2021-04-08 | High-efficient sealed centrifugal screw rod shaft seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216975766U (en) |
-
2021
- 2021-04-08 CN CN202120714678.1U patent/CN216975766U/en active Active
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