CN202429655U - Modified rotary vane bearing box sealing device of spiral coal unloader - Google Patents
Modified rotary vane bearing box sealing device of spiral coal unloader Download PDFInfo
- Publication number
- CN202429655U CN202429655U CN2012200201492U CN201220020149U CN202429655U CN 202429655 U CN202429655 U CN 202429655U CN 2012200201492 U CN2012200201492 U CN 2012200201492U CN 201220020149 U CN201220020149 U CN 201220020149U CN 202429655 U CN202429655 U CN 202429655U
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- Prior art keywords
- bearing box
- rotary vane
- centrifugal
- vane
- bearing
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Abstract
The utility model discloses a modified rotary vane bearing box sealing device of a spiral coal unloader. The rotary vane bearing box sealing device comprises a rotary vane bearing box. A shaft sleeve which is provided with evenly distributed centrifugal sealing rings is fixedly mounted on an extended rotary vane shaft. An inner filling unclosed cover, an inner filling pressure plate, an outer filling support and an outer pressure cover which are matched with the shaft sleeve are sequentially and outwardly mounted on the outer end face of the rotary vane bearing box through bolts. An inner wear-resistant packing which is matched with the shaft sleeve is mounted in an annular groove which is formed by an annular stopper of the inner filling unclosed cover and the inner side of the inner filling pressure plate. A centrifugal cavity is formed by the outer side of the inner filling pressure plate and an inner annular concave platform of the outer filling support. The centrifugal cavity is in clearance fit with the centrifugal sealing rings. An outer wear-resistant packing is mounted in an annular groove which is formed by the inner annular concave platform of the outer filling support and the outer pressure cover. The modified rotary vane bearing box sealing device of the spiral coal unloader is compact and reasonable in structure, sealing effect of shaft sealing of the bearing box can be improved, service life of a bearing can be prolonged, device operating efficiency can be improved, and work load of a maintenance worker can be lowered.
Description
Technical field
The utility model belongs to the improvement of spiral coal unloader vane Seal in Bearing Box structure, particularly improved spiral coal unloader vane Seal in Bearing Box device.
Background technology
The axial force convey materials that conveyor screw produces in the high speed revolution process through the helix vane; Vane is two support structure, and bearing felt adopts the gland sealed form more, in compression gland, compresses single or multiple lift packing realization sealing with crossing; Exist axial dimension big; Difficult in maintenance, the filler life-span is short, the shortcoming that wearing and tearing back sealing effectiveness sharply descends.The present invention relates to the sealing of domestic screw conveyor bear box, be applicable to that the bear box of the conveyor screw of granular material, slag slurry liquid is used.
The conveying principle of spiral coal unloader is through inserting the chevron pointing vane in the railway car coal seam, with coking coal car door release from both sides.The vane bearing installation is at two ends, the vane outside, and bearing is embedded in the coal seam during work, at vane when coking coal is carried in both sides; Coal dust is under axial carrying capacity effect; Produce bigger specific pressure, the penetrating shaft envelope gets into bearing chamber, and filling rolling body and slideway gap cause bearing stuck; Bearing can only be reached for 150 hours service life usually, can't satisfy the needs of ordinary production.
Summary of the invention
The purpose of the utility model is to provide a kind of improved spiral coal unloader vane Seal in Bearing Box device, and its compact conformation, reasonable can improve bearing box shaft seal sealing effectiveness, prolongs the service life of bearing, improves equipment operation rate, reduces the service work load.
The purpose of the utility model is achieved in that a kind of improved spiral coal unloader vane Seal in Bearing Box device; Comprise the vane bear box; On the vane axle that the vane bear box stretches out, installing and having the axle sleeve that is uniformly distributed with the centrifugal seal ring; On the outer face of vane bear box from inside to outside through bolt be installed with successively the interior filler that matches with the axle sleeve that has the centrifugal seal ring pass through lid, interior filler platen, outer filler bearing and outside gland; Wherein: in interior filler passes through the annular retaining platform of lid and annular groove that interior filler platen medial surface constitutes, be installed with match with axle sleeve in wear-resisting packing; The centrifugal chamber of interior annular concave platform looping of interior filler platen lateral surface and outer filler bearing; The centrifugal chamber of annular cooperates with centrifugal seal czermak space on the axle sleeve, in the annular groove of the outer ring concave station of filler bearing and outer gland formation wear-resisting packing outward is installed outside.
This device is the axle end bearing case seal reconstruction of screw conveyor.Under the limited condition of axial space size; Utilize short as far as possible axial passage; Be provided with means such as contact packing seal, labyrinth packing, centrifugal seal; Adopt simultaneously fill in the wear resistant filler compensate for wear of band elasticity inner core, the centrifugal chamber hold the bits property preferably grease adsorb the coal dust chip, improve sealing effectiveness with this, prolongation bearing service life.
The outermost of the utility model is packing seal, is used to block extraneous coal dust and gets into, and second road is the centrifugal seal of repack with grease; Can reduce the coal dust flow velocity of entering, grease adsorbs particulate matter and lubricates packing filling simultaneously, and the 3rd road still is packing seal; Remaining pulverized coal particle is enclosed in outside the bearing chamber, and the tolerance clearance of each parts and axle sleeve is controlled at 0.5mm, forms restriction effect preferably at inter-stage; Filler adopts the wear-resisting packing of band elasticity inner core, can the compensate for wear amount, keep seal pressure; Adopt improved type molybdenum disulphide lithium matrix in the bearing chamber, have and hold bits property and self-lubricating property preferably.We do not do big change to existing installation, make structure compact more, utilize end cap spatial destribution the sealings of 3 roads, labyrinth packing, multistage packing mix use with centrifugal seal.The utility model compact conformation, reasonable has improved bearing box shaft seal sealing effectiveness, has prolonged the service life of bearing, has improved equipment operation rate, has reduced the service work load.
Description of drawings
To combine accompanying drawing that the utility model is done further to describe below, accompanying drawing 1 is the sectional structure scheme drawing of the utility model.
The specific embodiment
A kind of improved spiral coal unloader vane Seal in Bearing Box device; Shown in accompanying drawing 1; Comprise vane bear box 1; On the vane axle 3 that vane bear box 1 stretches out, installing and having the axle sleeve 4 that is uniformly distributed with centrifugal seal ring 11; On the outer face of vane bear box 1 from inside to outside through bolt be installed with successively that the interior filler that matches with the axle sleeve that has centrifugal seal ring 11 4 covers 5 thoroughly, interior filler platen 6, outer filler bearing 8 and outside gland 9; In interior filler covers the annular groove that 5 annular retaining platform and interior filler platen 6 medial surfaces constitute thoroughly, be installed with match with axle sleeve 4 in wear-resisting packing 7; The centrifugal chamber of interior annular concave platform looping of interior filler platen 6 lateral surfaces and outer filler bearing 8, centrifugal seal ring 11 free-running fits on annular centrifugal chamber and the axle sleeve 4 are installed with outer wear-resisting packing 1 in the annular groove that the outer ring concave station of filler bearing 8 and outer gland 9 constitute outside.The quantity of centrifugal seal ring 11 is 2-3.
Claims (2)
1. improved spiral coal unloader vane Seal in Bearing Box device; Comprise vane bear box (1); It is characterized in that: on the vane axle (3) that vane bear box (1) stretches out, installing and have the axle sleeve (4) that is uniformly distributed with centrifugal seal ring (11); On the outer face of vane bear box (1) from inside to outside through bolt be installed with successively the interior filler that matches with the axle sleeve that has centrifugal seal ring (11) (4) pass through lid (5), interior filler platen (6), outer filler bearing (8) and outside gland (9); In interior filler passes through the annular retaining platform of lid (5) and annular groove that interior filler platen (6) medial surface constitutes, be installed with match with axle sleeve (4) in wear-resisting packing (7); The centrifugal chamber of interior annular concave platform looping of interior filler platen (6) lateral surface and outer filler bearing (8); Centrifugal seal ring (11) free-running fit on centrifugal chamber of annular and the axle sleeve (4) is installed with outer wear-resisting packing (10) in the annular groove that the outer ring concave station of filler bearing (8) and outer gland (9) constitute outside.
2. improved spiral coal unloader vane Seal in Bearing Box device according to claim 1, it is characterized in that: the quantity of centrifugal seal ring (11) is 2-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200201492U CN202429655U (en) | 2012-01-17 | 2012-01-17 | Modified rotary vane bearing box sealing device of spiral coal unloader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200201492U CN202429655U (en) | 2012-01-17 | 2012-01-17 | Modified rotary vane bearing box sealing device of spiral coal unloader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202429655U true CN202429655U (en) | 2012-09-12 |
Family
ID=46779121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200201492U Expired - Fee Related CN202429655U (en) | 2012-01-17 | 2012-01-17 | Modified rotary vane bearing box sealing device of spiral coal unloader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202429655U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106586423A (en) * | 2016-11-24 | 2017-04-26 | 蓬溪斌鹏科技有限公司 | Sealing device for screw conveyor shaft head |
| CN107091326A (en) * | 2017-05-05 | 2017-08-25 | 嘉兴石化有限公司 | A kind of belt mud dewatering equipment roller bearing sealing structure |
-
2012
- 2012-01-17 CN CN2012200201492U patent/CN202429655U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106586423A (en) * | 2016-11-24 | 2017-04-26 | 蓬溪斌鹏科技有限公司 | Sealing device for screw conveyor shaft head |
| CN107091326A (en) * | 2017-05-05 | 2017-08-25 | 嘉兴石化有限公司 | A kind of belt mud dewatering equipment roller bearing sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20130117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |