CN210661357U - Multistage packing type shaft seal structure - Google Patents
Multistage packing type shaft seal structure Download PDFInfo
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- CN210661357U CN210661357U CN201921625798.3U CN201921625798U CN210661357U CN 210661357 U CN210661357 U CN 210661357U CN 201921625798 U CN201921625798 U CN 201921625798U CN 210661357 U CN210661357 U CN 210661357U
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- packing
- rotating shaft
- dust
- disc
- sealing
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Abstract
The utility model discloses a multistage filler formula bearing seal structure relates to the shaft seal field. The axle head of setting on the equipment body includes: the movable disc is fixedly connected with the rotating shaft and rotates along with the rotating shaft, and no gap exists between the movable disc and the rotating shaft; first dust sealing spare sets up be located in the pivot one side of driving disk, second dust sealing spare sets up be located in the pivot the opposite side of driving disk, connect through fastener between first dust sealing spare and the second dust sealing spare, connect the back, form the seal chamber, the driving disk is located the seal chamber, and, first annular packing with one side quotation in close contact with of driving disk, the second annular packing with the opposite side quotation in close contact with of driving disk. The utility model provides a multistage filler formula bearing seal structure can effectively reduce the condition that leads to the dust to leak because of the bearing seal damages to simple structure can reform transform existing equipment fast.
Description
Technical Field
The utility model relates to a shaft seal field specifically is a multistage filler formula bearing seal structure.
Background
During the operation of powder material sealing and transporting equipment, such as scraper conveyer, screw conveyer, bucket elevator, cylinder sieve, etc., the shaft seal is sealed with simple stuffing, and the stuffing is usually packed with packing as sealing medium and axially compressed by gland screw. But the dust leaks out due to the abrasion of the filler and the positive pressure brought by the material transportation process after long-time operation, thereby seriously polluting the environment. Packing shaft seal leakage can be said to be the most common problem in the industry.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a multistage filler formula bearing seal structure can effectively reduce the condition that leads to the dust to leak because of the bearing seal damages to simple structure can reform transform existing equipment fast.
In order to realize the technical purpose, the utility model discloses a following technical scheme:
a multistage packing formula shaft seal structure sets up the axle head on the equipment body, includes:
the movable disc is fixedly connected with the rotating shaft and rotates along with the rotating shaft, and no gap exists between the movable disc and the rotating shaft;
the first dustproof sealing part is arranged on the rotating shaft and positioned on one side of the movable disc, a first shaft hole for the rotating shaft to penetrate through is formed in the first dustproof sealing part, the inner peripheral surface of the first shaft hole is in clearance fit with the outer peripheral surface of the rotating shaft, at least one first packing ring groove for placing sealing packing is formed in the disc surface, close to one side of the movable disc, of the first dustproof sealing part after the first dustproof sealing part is installed on the rotating shaft, and first annular packing is placed in the first packing ring groove;
the second dustproof sealing part is arranged on the rotating shaft and positioned on the other side of the movable disc, a second shaft hole for the rotating shaft to penetrate through is formed in the second dustproof sealing part, the inner peripheral surface of the second shaft hole is in clearance fit with the outer peripheral surface of the rotating shaft, at least one second packing ring groove for placing sealing packing is formed in a disc surface, close to one side of the movable disc, of the second dustproof sealing part after the second dustproof sealing part is installed on the rotating shaft, and second annular packing is placed in the second packing ring groove;
the first dust-proof sealing piece and the second dust-proof sealing piece are connected through a fastening element, a sealing cavity is formed after the first dust-proof sealing piece and the second dust-proof sealing piece are connected, the movable disc is located in the sealing cavity, the first annular packing is in close contact with the disc surface on one side of the movable disc, and the second annular packing is in close contact with the disc surface on the other side of the movable disc;
one of the first dust seal or the second dust seal is fixedly connected with the equipment body.
A first annular limiting bulge is arranged on the disc surface on one side, close to the first dustproof sealing element, of the movable disc, and the first annular limiting bulge is arranged between the two first packing ring grooves; and a second annular limiting bulge is arranged on the disc surface on one side close to the second sealing disc on the movable disc and is arranged between the two second packing ring grooves.
Lubricating grease is arranged between the first annular packing and the movable disc and between the second annular packing and the movable disc.
The lubricating grease is lithium-based lubricating grease.
The first dust-proof sealing piece and the second dust-proof sealing piece are circular ring flat plates with the same structure.
Has the advantages that:
the utility model discloses for current axle seal structure, have following advantage:
the utility model discloses a rotating ring is connected with the hub connection to change the bearing seal direction. Utilize labyrinth structure and packing to increase sealed area separation material and leak to play sealed effect, can effectively reduce the condition that leads to the dust to leak because of the bearing seal damages, the adaptation is because of the bearing seal inefficacy problem that the axle warp and the problem of the dust that leads to because of the pressure that produces in the material transportation leaks is overcome.
Additionally, the utility model discloses multistage filler formula bearing seal structural design is simple, and the low price can be reformed transform fast to existing equipment.
Drawings
Fig. 1 is a schematic structural view of the multi-stage packing type shaft seal structure of the present invention after being connected to a rotating shaft;
wherein, 1, the equipment body; 2. a first dust seal; 3. a movable plate; 4. a second dust seal; 5. a second annular filler; 6. a rotating shaft; 7. a bolt; 8. a first annular packing;
FIG. 2 is a schematic view of a first dust seal adjacent a side of the cam plate;
wherein, (2-1, 2-2, 2-3), the first packing ring groove; 2-4, an annular boss;
FIG. 3 is a front view of a side panel of the cam plate;
wherein, 3-1, annular spacing protruding.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the drawings and specific embodiments.
As shown in fig. 1, a multi-stage packing type shaft seal structure, which is provided at a shaft end of an apparatus body, includes:
the movable disc 3 is fixedly connected with the rotating shaft 6 and rotates along with the rotating shaft 6, and no gap exists between the movable disc 3 and the rotating shaft 6;
the first dustproof sealing part 2 is arranged on the rotating shaft 6 and located on one side of the movable disc 3, a first shaft hole for the rotating shaft 6 to penetrate through is formed in the first dustproof sealing part 2, the inner peripheral surface of the first shaft hole is in clearance fit with the outer peripheral surface of the rotating shaft, three first packing ring grooves for placing sealing packing are formed in the disc surface, close to one side of the movable disc 3, of the first dustproof sealing part 2 after the first dustproof sealing part 2 is installed on the rotating shaft 6, and a first annular packing 8 is placed in each first packing ring groove;
the second dustproof sealing part 4 is arranged on the rotating shaft and positioned on the other side of the movable disc, a second shaft hole for the rotating shaft to penetrate through is formed in the second dustproof sealing part, the inner peripheral surface of the second shaft hole is in clearance fit with the outer peripheral surface of the rotating shaft, three second packing ring grooves for placing sealing packing are formed in a disc surface, close to one side of the movable disc, of the second dustproof sealing part after the second dustproof sealing part is installed on the rotating shaft, and second annular packing is placed in each second packing ring groove;
the first dust-proof sealing piece and the second dust-proof sealing piece are connected through a bolt fastener, a sealing cavity is formed after connection, the movable disc 3 is located in the sealing cavity, the first annular packing 8 is in close contact with the disc surface on one side of the movable disc 3, and the second annular packing 5 is in close contact with the disc surface on the other side of the movable disc;
the first dust seal is fixedly connected with the equipment body.
In this embodiment, a first annular limiting bulge is arranged on a disc surface on one side of the movable disc, which is close to the first dustproof sealing element, and the first annular limiting bulge is arranged between the two first packing ring grooves; and a second annular limiting bulge is arranged on the disc surface on one side close to the second sealing disc on the movable disc and is arranged between the two second packing ring grooves.
In this embodiment, grease is provided between the first annular packing and the movable disk, and between the second annular packing and the movable disk.
In this embodiment, the grease is a lithium-based grease.
In this embodiment, the first dust seal and the second dust seal are circular flat plates having the same structure.
The utility model relates to an installation method of multistage filler formula bearing seal structure is:
firstly, welding and fixing a first dust seal on an equipment body of a shaft outlet;
and secondly, fixing the first annular packing and the lubricating grease in a first packing ring groove on the first dustproof sealing element.
And thirdly, fixing the movable disc on the shaft and enabling the movable disc to be in close contact with the first annular packing.
And fourthly, fixing the second replacement filler and the lubricating grease in the first filler ring groove on the second dust-proof sealing piece, and fixing the second dust-proof sealing piece on the first dust-proof sealing piece through a bolt.
The material of the sealed powder is blown from the equipment, and the double-sided multilayer annular packing in the sealed cavity is blocked layer by layer, so that the sealing operation is performed.
Claims (5)
1. The utility model provides a multistage filler formula shaft seal structure, sets up the axle head on equipment body, its characterized in that includes:
the movable disc is fixedly connected with the rotating shaft and rotates along with the rotating shaft, and no gap exists between the movable disc and the rotating shaft;
the first dustproof sealing part is arranged on the rotating shaft and positioned on one side of the movable disc, a first shaft hole for the rotating shaft to penetrate through is formed in the first dustproof sealing part, the inner peripheral surface of the first shaft hole is in clearance fit with the outer peripheral surface of the rotating shaft, at least one first packing ring groove for placing sealing packing is formed in the disc surface, close to one side of the movable disc, of the first dustproof sealing part after the first dustproof sealing part is installed on the rotating shaft, and first annular packing is placed in the first packing ring groove;
the second dustproof sealing part is arranged on the rotating shaft and positioned on the other side of the movable disc, a second shaft hole for the rotating shaft to penetrate through is formed in the second dustproof sealing part, the inner peripheral surface of the second shaft hole is in clearance fit with the outer peripheral surface of the rotating shaft, at least one second packing ring groove for placing sealing packing is formed in a disc surface, close to one side of the movable disc, of the second dustproof sealing part after the second dustproof sealing part is installed on the rotating shaft, and second annular packing is placed in the second packing ring groove;
the first dust-proof sealing piece and the second dust-proof sealing piece are connected through a fastening element, a sealing cavity is formed after the first dust-proof sealing piece and the second dust-proof sealing piece are connected, the movable disc is located in the sealing cavity, the first annular packing is in close contact with the disc surface on one side of the movable disc, and the second annular packing is in close contact with the disc surface on the other side of the movable disc;
one of the first dust seal or the second dust seal is fixedly connected with the equipment body.
2. The multi-stage packing type shaft seal structure according to claim 1, wherein a first annular limiting protrusion is provided on a side disc surface of the movable disc adjacent to the first dust-proof sealing member, and the first annular limiting protrusion is provided between two first packing ring grooves; and a second annular limiting bulge is arranged on the disc surface on one side close to the second sealing disc on the movable disc and is arranged between the two second packing ring grooves.
3. The multi-stage packing type shaft sealing structure according to claim 1, wherein grease is provided between the first annular packing and the movable disk and between the second annular packing and the movable disk.
4. The multi-stage packing shaft seal structure according to claim 3, wherein the grease is a lithium-based grease.
5. The multi-stage packing type shaft seal structure according to claim 1, wherein the first and second dust-proof sealing members are disk-shaped sealing members having the same structure, a shaft hole for the rotation shaft to pass through is formed in the center of the disk-shaped sealing member, an annular boss is formed around the disk of the disk-shaped sealing member, and a connection hole for connecting a fastening member is formed in the annular boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921625798.3U CN210661357U (en) | 2019-09-27 | 2019-09-27 | Multistage packing type shaft seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921625798.3U CN210661357U (en) | 2019-09-27 | 2019-09-27 | Multistage packing type shaft seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210661357U true CN210661357U (en) | 2020-06-02 |
Family
ID=70818640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921625798.3U Active CN210661357U (en) | 2019-09-27 | 2019-09-27 | Multistage packing type shaft seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210661357U (en) |
-
2019
- 2019-09-27 CN CN201921625798.3U patent/CN210661357U/en active Active
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