CN218954034U - Supporting wheel sealing structure of buried scraper machine - Google Patents
Supporting wheel sealing structure of buried scraper machine Download PDFInfo
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- CN218954034U CN218954034U CN202223090722.XU CN202223090722U CN218954034U CN 218954034 U CN218954034 U CN 218954034U CN 202223090722 U CN202223090722 U CN 202223090722U CN 218954034 U CN218954034 U CN 218954034U
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- sealing
- air chamber
- bearing seat
- seat fixing
- scraper machine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The supporting wheel sealing structure of the embedded scraper comprises a sealing seat, wherein multiple labyrinth seals are arranged between an inner ring of the sealing seat and a shaft, and each labyrinth seal comprises a sealing gas ring, a reverse framework oil seal and a double forward framework-free oil seal which are sequentially arranged from inside to outside; the end part of the sealing seat is matched with the bearing seat fixing plate through a mechanical labyrinth sealing structure and is detachably and hermetically connected; the bearing seat fixing plate is detachably and hermetically connected with a bearing seat fixing flange on the scraper machine shell; an air chamber is arranged at the outer side of the bearing seat fixing flange, and the end parts of the air chamber are connected in a sealing way through an air chamber sealing cover plate; the air chamber is provided with a nitrogen charging port, and the nitrogen charging port charges air into the air chamber. The supporting wheel sealing structure of the embedded scraper machine can prolong the service life of the bearing.
Description
Technical Field
The utility model relates to a buried scraper machine, in particular to a supporting wheel sealing structure of a buried scraper machine.
Background
When the buried scraper machine operates in a high-temperature environment, a riding wheel device is added to compensate the elongation of the scraper chain, so that the chain breakage accident caused by temperature difference is avoided. The existing riding wheel device is provided with a sealing structure at the riding wheel shaft, and the sealing structure adopts mechanical sealing modes such as filling materials and the like. Corresponding to the pressure environment (0, 2 mpa) of blast furnace gas delivery, the current riding wheel sealing structure cannot bear, and the condition of pressure leakage and sealing inaccuracy can be generated at the joint surface.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a supporting wheel sealing structure of a buried scraper conveyor, which effectively protects a bearing from being influenced by gas dust, prolongs the service life of the bearing and prevents pressure in a scraper conveyor shell from leaking.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the supporting wheel sealing structure of the embedded scraper comprises a sealing seat, wherein multiple labyrinth seals are arranged between an inner ring of the sealing seat and a shaft, and each labyrinth seal comprises a sealing gas ring, a reverse framework oil seal and a double forward framework-free oil seal which are sequentially arranged from inside to outside; the end part of the sealing seat is matched with the bearing seat fixing plate through a mechanical labyrinth sealing structure and is detachably and hermetically connected; the bearing seat fixing plate is detachably and hermetically connected with a bearing seat fixing flange on the scraper machine shell; an air chamber is arranged at the outer side of the bearing seat fixing flange, and the end parts of the air chamber are connected in a sealing way through an air chamber sealing cover plate; the air chamber is provided with a nitrogen charging port, and the nitrogen charging port charges air into the air chamber.
The sealing seat is tightly connected with the bearing seat fixing plate and the bearing seat fixing plate is tightly connected with the bearing seat fixing flange through sealing gaskets and bolts.
And a flexible ceramic sealing gasket is arranged between the air chamber sealing cover plate and the air chamber.
And a lubricating oil filling port is arranged on the air chamber.
The utility model discloses a supporting wheel sealing structure of a buried scraper machine, which has the following technical effects: by combining the serrated mechanical labyrinth seal, the multiple labyrinth seal and the shell air chamber seal, the mechanical seal, the oil seal and the air seal are simultaneously carried out, the bearing is effectively protected from being influenced by gas dust, and the service life of the bearing is prolonged; and meanwhile, pressure leakage in the shell of the scraper machine is prevented.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic partial structure of fig. 1.
In the figure: the device comprises a lubricating oil filling port 1, a flexible ceramic sealing gasket 2, a sealing seat 3, a reverse framework oil seal 4, a sealing gas ring 5, a forward framework-free oil seal 6, a bearing 7, an air chamber sealing cover plate 8, a nitrogen gas filling port 9, an air chamber cavity flange 10, a bearing seat fixing plate 11, a bearing seat fixing flange 12 and a scraper machine shell 13.
Detailed Description
As shown in fig. 1-2, the supporting wheel sealing structure of the buried scraper comprises a bearing seat fixing flange 12, wherein the bearing seat fixing flange 12 is welded with a scraper shell 13, and a bearing seat fixing plate 11 is tightly connected to the bearing seat fixing flange 12 through bolts and sealing gaskets. The sealing seat 3 is tightly connected with the sealing gasket on the bearing seat fixing plate 11 through bolts. The sealing seat 3 and the bearing seat fixing plate 11 are connected in a zigzag mechanical labyrinth sealing way. The joint mode between the sealing seat 3 and the shaft is multiple labyrinth sealing. The multiple labyrinth seal structure comprises a sealing gas ring 5, a reverse skeleton oil seal 4 and a double positive skeleton-free oil seal 6 which are arranged from inside to outside. The sealing gas ring is a component which can uniformly arrange gas on the surface of the shaft and can form a gas film on the surface of the shaft. The nitrogen charging port 9 charges the sealing gas ring 5.
The air chamber is welded on the outer side of the bearing seat fixing flange 12, the air chamber cavity flange 10 is welded on the end part of the air chamber, the air chamber sealing cover plate 8 is connected with the air chamber cavity flange 10 through the flexible ceramic sealing gasket 2, and the connection mode between the air chamber sealing cover plate and the air chamber cavity flange 10 is multiple mechanical labyrinth sealing.
In addition, be provided with lubricating oil filler neck 1 and nitrogen gas inflation inlet 9 on the air chamber, lubricating oil filler neck 1 oiling can guarantee the lubrication of bearing 7, and nitrogen gas inflation inlet 9 is to the airtight protection of air chamber internal gas injection to sealing seat 3.
Working principle and process: after nitrogen is filled into the nitrogen filling port 9, the sealing gas ring 5 forms a sealing gas chamber, a gas film is formed between the shaft and the sealing seat 3, dust can be effectively prevented from entering the sealing seat 3, the reverse skeleton oil seal 4 and the double positive skeleton-free oil seal 6 in the sealing seat 3 can seal lubricating grease in the sealing seat 3, the dust carried by nitrogen can be prevented from entering the bearing, and the bearing is prevented from being damaged. The air chamber sealing cover plate 8 isolates the installation cavity of the sealing seat 3 from the outside to form an independent sealing air chamber, so that the internal air is prevented from leaking, and a double-insurance structure is formed.
Claims (4)
1. The utility model provides a bury scraper machine riding wheel seal structure which characterized in that: the sealing device comprises a sealing seat (3), wherein multiple labyrinth seals are arranged between an inner ring of the sealing seat (3) and a shaft, and each multiple labyrinth seal comprises a sealing gas ring (5), a reverse framework oil seal (4) and a double positive framework-free oil seal (6) which are sequentially arranged from inside to outside; the end part of the sealing seat (3) is matched with the bearing seat fixing plate (11) through a mechanical labyrinth sealing structure and is detachably connected in a sealing way; the bearing seat fixing plate (11) is detachably and hermetically connected with a bearing seat fixing flange (12) on the scraper machine shell (13); an air chamber is arranged at the outer side of the bearing seat fixing flange (12), and the end parts of the air chamber are connected in a sealing way through an air chamber sealing cover plate (8); the air chamber is provided with a nitrogen charging port (9), and the nitrogen charging port (9) charges air into the air chamber.
2. The riding wheel sealing structure of the embedded scraper machine according to claim 1, wherein: the sealing seat (3) is tightly connected with the bearing seat fixing plate (11) and the bearing seat fixing plate (11) is tightly connected with the bearing seat fixing flange (12) through sealing gaskets and bolts.
3. The riding wheel sealing structure of the embedded scraper machine according to claim 1, wherein: a flexible ceramic sealing gasket (2) is arranged between the air chamber sealing cover plate (8) and the air chamber.
4. The riding wheel sealing structure of the embedded scraper machine according to claim 1, wherein: and a lubricating oil filling port (1) is arranged on the air chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223090722.XU CN218954034U (en) | 2022-11-17 | 2022-11-17 | Supporting wheel sealing structure of buried scraper machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223090722.XU CN218954034U (en) | 2022-11-17 | 2022-11-17 | Supporting wheel sealing structure of buried scraper machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218954034U true CN218954034U (en) | 2023-05-02 |
Family
ID=86134430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223090722.XU Active CN218954034U (en) | 2022-11-17 | 2022-11-17 | Supporting wheel sealing structure of buried scraper machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218954034U (en) |
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2022
- 2022-11-17 CN CN202223090722.XU patent/CN218954034U/en active Active
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