CN202897420U - Seal device of spiral conveyor - Google Patents
Seal device of spiral conveyor Download PDFInfo
- Publication number
- CN202897420U CN202897420U CN2012205845617U CN201220584561U CN202897420U CN 202897420 U CN202897420 U CN 202897420U CN 2012205845617 U CN2012205845617 U CN 2012205845617U CN 201220584561 U CN201220584561 U CN 201220584561U CN 202897420 U CN202897420 U CN 202897420U
- Authority
- CN
- China
- Prior art keywords
- seal
- oil
- oil seal
- packing
- lip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a seal device of a spiral conveyor and belongs to the field of powder collecting. The seal device comprises an oil seal seat and a shaft. The shaft penetrates through the oil seal seat. An annular felt ring seal, a lip-shaped seal, a grease seal and a packing seal are sequentially disposed on a coordinating face of the oil seal seat and the shaft. The end of the oil seal seat is fixed by a gland. An oil cup connected with the grease seal is disposed outside the oil seal seat. By the seal device, seal effect is improved, possibility of powder entering a bearing is eliminated, the service life of the bearing is prolonged greatly, and maintenance workload generated by bearing replacement is reduced.
Description
Technical field
The utility model belongs to the powder collection device field, specifically a kind of sealing arrangement of conveyor screw.
Background technology
The collecting bag filter is the major equipment that carbon black is collected, its effect is ready for next operation for collecting, separate, be transported to the carbon black holding vessel with the Powdered carbon black that air-flow is carried, being designed to of this facility gauge adopts some filter bags to collect, and carries with specialized equipment.
The design main points of oil seal seat are the right alignmenies that will guarantee oil seal seat hole and S. A., guarantee that simultaneously the oil sealing antelabium is to the magnitude of interference requirement of S. A..But equipment causes bearing failure still very common owing to oil seal failure causes powder to flow into bearing in real-world operation.The most common failure of oil sealing has: (1) oil sealing is bad; (2) assembling is bad; (3) lip wearing and tearing; (4) oil seal lip is softening; Swelling or sclerosis, be full of cracks; (5) ageing of rubber; (6) roughness of surface of axle is improper or superficial hardness is improper (being higher than HRC40) etc.Owing to the reason of oil seal failure have multiple, in case and oil seal failure when adopting above structure must be changed immediately, as can not in time finding and change, then certainly will cause bearing failure.
Because conventional seals adopts double-layer structure, in its actual application, it is better that we find just to begin a period of time leak tightness, the not long leak tightness that just occurs descends in use, and reveal, we once adopted at two ends and adopt blowing engine to carry out additional seal in improved process, but it increases more cost, and its secondary action is larger in some aspects.
Summary of the invention
Problem to be solved in the utility model is that the sealing effectiveness that improves sealing arrangement prevents that powder from flowing into bearing, provides the sealing arrangement of conveyor screw.
The utility model provides following technical scheme:
The sealing arrangement of conveyor screw, it comprises oil seal seat and axle, axle passes in the oil seal seat, oil seal seat and axle fitting surface are disposed with the sealing of felt circle, lip packing, butter envelope and the packing_seal that shape is annular, the oil seal seat end is fixed by gland, and oil seal seat is provided with lubricating cup outward and is connected with the butter envelope.
Described lip packing is provided with two circles, and this lip packing comprises the lip skeleton that cooperates with axle, and the lip skeleton is close to the axle surface.
The utility model has the advantages that the sealing effectiveness that has improved sealing arrangement stopped possibility that powder flows into bearing, life-span of greatly having improved bearing, reduced because changing the maintenance load of bearing generation.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, the sealing arrangement of conveyor screw, it comprises oil seal seat 1 and axle 2, axle 2 passes in the oil seal seat 1, oil seal seat 1 is disposed with felt circle sealing 3, lip packing, butter envelope 4 and the packing_seal 5 that shape is annular with axle 2 fitting surfaces, oil seal seat 1 end is fixing by gland 6, and the oil seal seat 1 outer lubricating cup 7 that is provided with is connected with butter envelope 4.
Described lip packing is provided with two circles, is respectively lip packing 8 and lip packing 9, and lip packing comprises the lip skeleton 10 that cooperates with axle 2, and lip skeleton 10 is close to the axle surface.
We adopt new-type sealing by rise in value four roads sealing of two seals, and felt-ring seal, twice lip packing reinforced seal, butter envelope, packing_seal are adopted in sealing successively.Felt-ring seal is that first prevents that material from entering the device of butter envelope, twice claim rotating lip-type sealing ring, under free state, the oil sealing internal diameter is less than the diameter of axle, certain magnitude of interference is namely arranged, install on the axle after, the convergent force of the pressure of its cutting edge and self-tightening spring produces certain radially enclasping force to seal shaft, interdict leakage-gap, reach the purpose of sealing.The rotating speed of S. A. is higher, and oil sealing is larger to the friction of axle, and then temperature rise is higher and life-span oil sealing is lower.Therefore one section space is set on the right side of lip skeleton adds oil sealing, work is to produce pressure and lubricated, change the cooling effect that to play axle, in this section space, add filler, adopt the mode of lubricating cup oiling, can regularly add, oil is owing to can permeate, therefore lip-type packing is played the oil that prevents in the oil sealing simultaneously as the effect of material diffusion, for stiffening effect, lip packing arranges twice, has increased packing sealing structure one in the bearing seat inboard at last, and axle head has still kept former bearing block structure.This road packing sealing structure is comprised of seal receptacle, packing, connection barrel, gland, push bolt etc., is evenly equipped with the square hole corresponding with push bolt at the barrel that links to each other with seal receptacle.The packing_seal that increases makes daily maintenance simple, after operation a period of time, and when packing has fluffed the powder phenomenon owing to reasons such as wearing and tearing with Louing, the push bolt that only need screw up with a wrench, promotion gland compression packing gets final product.When changing packing, also need not to dismantle bearing seat, as long as gland is unclamped, packing is filled in seal receptacle, again the gland compression is got final product, simple to operation, consuming time few, ragged edge be packing_seal, packing both can absorb the oil that permeates in oil sealing, can prevent that also external dust from entering oil sealing.
Hermetically-sealed construction after this improvement has been stopped the possibility of powder inflow bearing, in the life-span of greatly having improved bearing, has reduced the maintenance load that produces because changing bearing, the problem before having solved.Its performance has reached design in actual application.
Claims (2)
1. the sealing arrangement of conveyor screw, it is characterized in that: it comprises oil seal seat and axle, axle passes in the oil seal seat, oil seal seat and axle fitting surface are disposed with the sealing of felt circle, lip packing, butter envelope and the packing_seal that shape is annular, the oil seal seat end is fixed by gland, and oil seal seat is provided with lubricating cup outward and is connected with the butter envelope.
2. the sealing arrangement of conveyor screw according to claim 1, it is characterized in that: described lip packing is provided with two circles, and this lip packing comprises the lip skeleton that cooperates with axle, and the lip skeleton is close to the axle surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205845617U CN202897420U (en) | 2012-11-07 | 2012-11-07 | Seal device of spiral conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205845617U CN202897420U (en) | 2012-11-07 | 2012-11-07 | Seal device of spiral conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202897420U true CN202897420U (en) | 2013-04-24 |
Family
ID=48118115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205845617U Expired - Fee Related CN202897420U (en) | 2012-11-07 | 2012-11-07 | Seal device of spiral conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202897420U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105083885A (en) * | 2014-05-21 | 2015-11-25 | 中国有色（沈阳）冶金机械有限公司 | Sealing connecting structure for bearing |
| CN109663533A (en) * | 2019-01-24 | 2019-04-23 | 长沙高新开发区万华粉体设备有限公司 | A kind of vertical stirring mill for organic matter and inorganic matter agitation grinding |
-
2012
- 2012-11-07 CN CN2012205845617U patent/CN202897420U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105083885A (en) * | 2014-05-21 | 2015-11-25 | 中国有色（沈阳）冶金机械有限公司 | Sealing connecting structure for bearing |
| CN109663533A (en) * | 2019-01-24 | 2019-04-23 | 长沙高新开发区万华粉体设备有限公司 | A kind of vertical stirring mill for organic matter and inorganic matter agitation grinding |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201103686Y (en) | Principal shaft sealing device | |
| CN102094845A (en) | Shaft seal device of air compressor | |
| CN203809711U (en) | Automatic compensation type rotating and sealed air-locking discharging valve | |
| CN207278846U (en) | A kind of multiple axial mechanical labyrinth formula sealing structure in mining gear reducer shaft end | |
| CN202897420U (en) | Seal device of spiral conveyor | |
| CN203753819U (en) | Novel ultrafine powder climbing spiral shaft end structure | |
| CN201963591U (en) | Shaft seal device of air compressor | |
| CN202031994U (en) | Labyrinth-type bearing isolator | |
| CN203730718U (en) | Combined seal bearing end cover for speed reducer | |
| CN103803305A (en) | Double-sealed rotary valve | |
| CN202082291U (en) | End cover of bearing box of fan | |
| CN202834077U (en) | Oil seal combining three lips | |
| CN203703139U (en) | Sealing structure for rotary furnace | |
| CN203670462U (en) | Sealed type tapered roller bearing | |
| CN206360728U (en) | Double honeycomb seal structures | |
| CN103486423A (en) | Self-lubricating device of universal spindle | |
| CN202867576U (en) | Device for sealing bearing seat of roller for rolling mill | |
| CN203009597U (en) | Connecting device of screw rod and motor base | |
| CN206054741U (en) | A kind of screw machine two axial ends sealing structure | |
| CN205371634U (en) | Rotation axis rotary seal structure | |
| CN211398274U (en) | Conical bearing for granulator | |
| CN103639072B (en) | Multifunctional centrifugal oil cleaner | |
| CN107620800A (en) | Lathe gearbox main shaft sealing construction | |
| CN203868146U (en) | Novel bearing sealing seat | |
| CN201013893Y (en) | Horizontal roller milling rolling bearing dynamic forced seal assembly |
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: 20130424 Termination date: 20151107 |
|
| EXPY | Termination of patent right or utility model |