CN209839157U - Transmission disc sealing device - Google Patents
Transmission disc sealing device Download PDFInfo
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- CN209839157U CN209839157U CN201920464159.7U CN201920464159U CN209839157U CN 209839157 U CN209839157 U CN 209839157U CN 201920464159 U CN201920464159 U CN 201920464159U CN 209839157 U CN209839157 U CN 209839157U
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- sealing ring
- ring
- flexible sealing
- flexible
- carbon crystal
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Abstract
A sealing device of a transmission disc comprises a flexible sealing ring, wherein an opening on the flexible sealing ring is provided with a lap joint fastener, and the outer surface of the flexible sealing ring is provided with a pre-tightening metal ring; the flexible sealing ring is provided with an oil inlet nozzle; the inner side of the flexible sealing ring is provided with a wear-resistant inner sealing ring and an annular oil storage tank; the lower end face of the flexible sealing ring is provided with a metal sealing supporting plate and a connecting bolt. The utility model discloses simple structure has effectively solved leaking powder, the phenomenon of leaking out that current driving plate sealing device exists, avoids polluting production site's environment and equipment.
Description
Technical Field
The utility model relates to a medium speed grinds sealing technique, especially a transmission dish sealing device.
Background
The medium-speed mill is the main powder making equipment in the industries of electric power, metallurgy, building material chemical industry and the like at present, is widely applied to thermal power plants in particular, and is an important component of a powder making system of a power plant. The main task is to grind the material to be ground into powder material and provide the powder material to the boiler equipment. Therefore, the safety and economy of the whole unit are directly affected by the quality of the work of the medium-speed mill, the sealing device of the transmission disc is an important moving part of the medium-speed mill, and the transmission disc is a key sealing part of the medium-speed mill. The current common transmission disc seal is a carbon crystal seal; during operation, the carbon crystal seal is in rigid contact with the transmission disc. Due to abrasion of the carbon crystal seal and invasion and leakage of granular media, air pressure of an annular seal air chamber in the mill is difficult to maintain, the granular media invade more, the invasion of the granular media and the abrasion of the carbon crystal seal are aggravated, and finally the carbon crystal seal fails. In conclusion, the existing carbon crystal seal is easy to leak due to abrasion, the air pressure loss rate of the seal air chamber is overlarge, and the air pressure of the seal air chamber is low; thereby leading to the phenomenon of powder leakage and further polluting the environment and equipment of the production field; when powder is seriously leaked, the medium-speed mill is forced to stop running, so that the reliable running and standby of the equipment are not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above problem, providing a transmission plate sealing device, can effectively solve the sealed defect of current carbon crystal, avoided appearing leaking the powder phenomenon easily, guaranteed the environment of production site, prolonged equipment life.
The technical scheme of the utility model is realized through following measure: a transmission disc sealing device comprises a base, a carbon crystal seal and a carbon crystal seal outer ring; the method is characterized in that: the bottom of the carbon crystal sealing outer ring is provided with a flexible sealing ring, the bottom of the flexible sealing ring is provided with an annular metal sealing supporting plate, the flexible sealing ring is clamped between the carbon crystal sealing outer ring and the sealing supporting plate, and the sealing supporting plate is fixed at the bottom of the carbon crystal sealing outer ring by a plurality of bolts at the outer side of the flexible sealing ring; the inner annular surface of the flexible sealing ring is provided with a plurality of annular flexible wear-resistant inner rings and a plurality of annular oil storage grooves, and the inner annular surface of each flexible wear-resistant inner ring is in close contact with the outer axial surface of the base; the flexible sealing ring is provided with an opening convenient to install, a flexible sealing ring connecting piece is arranged at the lap joint of the opening of the outer ring surface of the flexible sealing ring, a plurality of oil inlet nozzles are arranged on the flexible sealing ring connecting piece, and an oil inlet pipe is arranged between each oil inlet nozzle and the corresponding oil storage tank.
Furthermore, a pre-tightening metal ring is arranged on the outer surface of the flexible sealing ring.
Furthermore, the multi-channel oil storage tank is divided into two channels.
Furthermore, the number of the flexible wear-resistant inner rings is two.
Furthermore, the section of the flexible sealing ring is E-shaped.
The utility model has simple structure and low cost, and effectively solves the problems of large sealing clearance and large leakage of sealing air existing in the existing carbon crystal sealing of the base; solves the powder leakage phenomenon and avoids the problems of environmental pollution, equipment pollution and the like of the production field.
Drawings
Fig. 1 is a schematic view of the left half sectional structure of the present invention.
Fig. 2 is a schematic view of the structure of the connecting member at the lap joint of the present invention.
Fig. 3 is a schematic sectional view of a left half of the prior art.
In the figure: 1. a base; 2. sealing the carbon crystal; 3. sealing the air inlet; 4. sealing the air chamber; 5. a flexible sealing ring; 6. a flexible wear-resistant inner ring; 7. an oil inlet pipe; 8. an oil storage tank; 9. sealing the supporting plate; 10. a bolt; 11. a flexible seal ring connector; 12. an oil inlet nozzle; 13. the carbon crystal seals the outer ring.
Detailed Description
In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout of the drawings in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention will be further described with reference to the following examples and drawings:
fig. 3 is a schematic sectional view of a left half of the prior art.
As shown in fig. 1 and 2, the sealing device for the transmission disc comprises a base 1, a flexible sealing ring 5, a flexible wear-resistant inner ring 6 and an annular metal sealing supporting plate 9. The inner arc surface of the flexible sealing ring 5 with the E-shaped cross section is provided with two flexible wear-resistant inner rings 6 and two oil storage tanks 8; the flexible sealing ring is provided with an opening convenient to install, a pre-tightening metal ring is arranged on the outer surface of the flexible sealing ring 5, a flexible sealing ring connecting piece 11 is arranged at the opening lap joint of the outer annular surface of the flexible sealing ring, a plurality of oil inlet nozzles 12 are arranged on the flexible sealing ring connecting piece 11, and an oil inlet pipe 7 is arranged between each oil inlet nozzle 12 and the corresponding oil storage tank 8.
The flexible sealing ring 5 is arranged between the carbon crystal sealing outer ring 13 and the sealing supporting plate 9, and the carbon crystal sealing outer ring 13 is connected with the sealing supporting plate 9 through the bolt 10.
The cross sections of the oil storage tank 8 and the flexible wear-resistant inner ring 6 are in a shape like a Chinese character 'kou', and the inner arc surface of the wear-resistant inner ring 6 is tightly attached to the outer cylindrical surface of the base 1.
The open-ended flexible sealing ring 5 forms a whole circular ring package outside the outer cylindrical surface of base 1 through the connection of flexible sealing ring connecting piece 11 to hug closely through flexible wear-resisting inner ring 6 of the inside flexible sealing ring 5 and base 1 and reach the emergence that effectively prevents to leak whitewashed phenomenon, and then avoided the pollution to production site environment and equipment.
Claims (5)
1. A transmission disc sealing device comprises a base (1), a carbon crystal seal (2) and a carbon crystal seal outer ring (13); the method is characterized in that: the bottom of the carbon crystal sealing outer ring (13) is provided with a flexible sealing ring (5), the bottom of the flexible sealing ring (5) is provided with an annular metal sealing supporting plate (9), the flexible sealing ring (5) is clamped between the carbon crystal sealing outer ring (13) and the sealing supporting plate (9), and the sealing supporting plate (9) is fixed at the bottom of the carbon crystal sealing outer ring (13) by a plurality of bolts (10) on the outer side of the flexible sealing ring (5); the inner annular surface of the flexible sealing ring is provided with a plurality of annular flexible wear-resistant inner rings (6) and a plurality of annular oil storage grooves (8), and the inner annular surface of each flexible wear-resistant inner ring (6) is in close contact with the outer axial surface of the base (1); the flexible sealing ring (5) is provided with an opening convenient to mount, a flexible sealing ring connecting piece (11) is arranged at the lap joint of the opening of the outer annular surface of the flexible sealing ring (5), a plurality of oil inlet nozzles (12) are arranged on the flexible sealing ring connecting piece (11), and an oil inlet pipe (7) is arranged between each oil inlet nozzle (12) and the corresponding oil storage tank (8).
2. A drive plate seal arrangement according to claim 1, wherein: and a pre-tightening metal ring is arranged on the outer surface of the flexible sealing ring (5).
3. A drive plate seal arrangement according to claim 1 or 2, wherein: the plurality of oil storage tanks (8) are divided into two.
4. A drive plate seal arrangement according to claim 1 or 2, wherein: the number of the plurality of flexible wear-resistant inner rings (6) is two.
5. A drive plate seal arrangement according to claim 1 or 2, wherein: the cross section of the flexible sealing ring (5) is E-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920464159.7U CN209839157U (en) | 2019-04-08 | 2019-04-08 | Transmission disc sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920464159.7U CN209839157U (en) | 2019-04-08 | 2019-04-08 | Transmission disc sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209839157U true CN209839157U (en) | 2019-12-24 |
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ID=68910213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920464159.7U Active CN209839157U (en) | 2019-04-08 | 2019-04-08 | Transmission disc sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209839157U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882594A (en) * | 2019-04-08 | 2019-06-14 | 顾伟 | Drive plate sealing device |
-
2019
- 2019-04-08 CN CN201920464159.7U patent/CN209839157U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882594A (en) * | 2019-04-08 | 2019-06-14 | 顾伟 | Drive plate sealing device |
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