CN201475329U - Rotating shaft with sealing device - Google Patents
Rotating shaft with sealing device Download PDFInfo
- Publication number
- CN201475329U CN201475329U CN 200920233642 CN200920233642U CN201475329U CN 201475329 U CN201475329 U CN 201475329U CN 200920233642 CN200920233642 CN 200920233642 CN 200920233642 U CN200920233642 U CN 200920233642U CN 201475329 U CN201475329 U CN 201475329U
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- CN
- China
- Prior art keywords
- bearing
- sealing
- sealing plate
- running shaft
- seal
- 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
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- Sealing Of Bearings (AREA)
Abstract
The utility model relates to a rotating shaft with a sealing device, which can prevent materials from entering or staying on the periphery of the bearing and includes a shaft sleeve, a bearing, a bearing pedestal and a bearing end cover; a sealing shield is arranged outside the shaft sleeve and covers the shaft sleeve from top; and the rotating shaft further includes a sealing plate and a convex block arranged outside the sealing plat, the sealing plate is wound around the shaft sleeve and forms a sealing device with the shaft sleeve, the convex block is in tight fit with the bearing pedestal, a cavity is formed among the convex block, the shaft sleeve and the sealing plate and communicated with an external space at the lower part of the rotating shaft, and materials passing through the sealing device can enter the external space at the lower part of the rotating shaft. For the improvement of the rotating shaft, a sealing ring is fixed in the cavity and outside the shaft sleeve, and the sealing ring is located between the bearing end cover and the sealing plate; and for the other improvement of the utility model, a labyrinth sealer is arranged between the sealing plate and the shaft sleeve. The rotating shaft can prevent material entering or staying on the periphery of the bearing and has the advantages of simple structure and reliable sealing.
Description
Technical field
The utility model relates to a kind of running shaft with seal arrangement, especially the running shaft of the band seal arrangement of refuse grinder.
Background technique
At present, waste processing has become the topic that the whole society pays close attention to, and waste processing comprises the processing of industrial refuse and domestic waste, and rubbish changes progressively recycling comprehensive utilization into from original simple burning, landfill disposal.Because the composition complexity of rubbish, the size scope is big, water content is high, increased the difficulty of waste processing, therefore before waste processing, must carry out precrushing to it with refuse grinder, make its size reach certain limit, carry out the mechanization sorting then, be beneficial to normally carrying out of recovery of resources and subsequent recovery treatment process.
Refuse grinder is different fully on material handling with common disintegrator.The composition and the physical property of general disintegrator material handling are definite substantially, and waste composition and change in physical that refuse grinder is handled are very big.The dry many dirt of rubbish possibility, also the possibility water content is very high; May be nonmetal, also may contain metal; May be industrial refuse, Bulky Waste, also may be domestic waste.Be provided with crushing roller in the known refuse grinder, the running shaft of crushing roller is located on the body by bearing, and crushing roller is provided with crushing teeth, by crushing teeth the effect of rubbish is made refuse breaking.Under above-mentioned abominable operating mode, rubbish material is easy to enter the bearing of crushing roller running shaft, and is stranded in around the bearing, and bearing is produced wearing and tearing, has a strong impact on the working life of refuse grinder.
The model utility content
The utility model provides a kind of running shaft with seal arrangement, can prevent effectively that material from entering or being stranded in around the bearing.
The running shaft of described band seal arrangement, comprise axle sleeve, bearing, bearing support and bearing (ball) cover, the axle sleeve outside also is provided with seal closure, seal closure covers axle sleeve from the top, comprise that sealing plate is with the projection of being located at the sealing plate outside, sealing plate is around axle sleeve, form seal arrangement with shaft room, projection and bearing support closely cooperate, and form cavity between projection, axle sleeve and the sealing plate, described cavity communicates with the space outerpace of running shaft below, can enter the space outerpace of running shaft below through cavity by the material of seal arrangement.
With the main shaft of above-mentioned running shaft as the refuse grinder crushing roller, because seal closure comes the garbage feeding space of bearing and top and the refuse breaking spatial separation of bearing side, when carrying out refuse breaking, both can prevent rubbish directly from top near rotating shaft bearing, partial material in the broken simultaneously rubbish is (as dust, particulate matter, liquid) in case the seal arrangement by sealing plate and shaft room enters projection, the cavity that forms between axle sleeve and the sealing plate, still can be along with the rotation of running shaft is taken out of, fall into the space outerpace of running shaft below, and can not be stranded in around the bearing, bearing is caused adverse effect.
Seal closure covers axle sleeve from the top, guarantees that rubbish can not enter described cavity from top, and those skilled in the art can determine the wherein concrete shape of projection according to actual conditions, to realize aforementioned purpose.As preferred version, seal closure covers axle sleeve from top and side, can guarantee that like this rubbish can directly not enter the cavity part on running shaft top, and the cavity part of having only minimum partial material such as dust by sealing plate and shaft room seal arrangement, particulate matter, liquid just can enter running shaft top.
As improvement of the present utility model, in the described cavity, also be fixed with seal ring in the axle sleeve outside, described seal ring is between bearing (ball) cover and sealing plate.As preferred version, seal ring and bearing (ball) cover, sealing plate, all do not contact between the projection.Seal ring and axle sleeve can be one or divide body structure.Simultaneously, seal ring can be a slice, also can be multi-disc.Above-mentioned seal ring can effectively stop by the partial material of sealing plate and shaft room seal arrangement (as dust, particulate matter, liquid) near bearing, simultaneously, because seal ring rotates with running shaft, can further effectively this part rubbish material be taken out of, enter the space outerpace of running shaft below, in addition, this is sealed into noncontact seal, does not then need substantially to safeguard.
As another kind of improvement the of the present utility model, also be provided with labyrinth seal between sealing plate and the axle sleeve.Labyrinth seal is the non-contact seal form, and not only sealing is reliable, and need not safeguard substantially.
As another kind of improvement the of the present utility model, bearing (ball) cover and shaft room also are provided with oil sealing sealing.Oil sealing sealing can prevent further that dust, particulate matter, liquid etc. from entering bearing.
In sum, the utility model can prevent effectively that material from entering or being stranded in around the bearing, is used for the refuse grinder crushing roller, effectively solves sealing problems such as the dust that produces in the refuse grinder shattering process, granule solid, liquid; It is simple in structure, sealing is reliable, low cost of manufacture; Because the labyrinth seal and the seal ring that adopt are the non-contact seal style, do not need substantially to safeguard.
Description of drawings
Fig. 1 is equipped with the cross-sectional schematic of refuse grinder of the present utility model along the horizontal plane that passes through rotating shaft axis;
Fig. 2 is the A-A cross section enlarged diagram of Fig. 1;
Fig. 3 is the B-B reduced cross-sectional schematic representation of Fig. 2;
Fig. 4 is the C-C reduced cross-sectional schematic representation of Fig. 2.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing:
As shown in Figure 1, 2, 3, be provided with crushing roller in the refuse grinder, the running shaft 9 of crushing roller is located on the body by bearing 1, and the part that crushing roller is positioned at crusher chamber 5 is provided with crushing teeth 14 vertically, and the effect by 14 pairs of rubbish of crushing teeth makes refuse breaking.The rubbish that is broken is along with the rotation of running shaft 9 falls in the baiting bucket 15 of bottom.
Bearing 1 inner ring is fixing by the axle sleeve 11 of running shaft 9, the outer ring is fixing by bearing support 12, the end is provided with bearing (ball) cover 10, axle sleeve 11 outsides are provided with seal closure, seal closure covers axle sleeve 11 from top and side, comprise sealing plate 8 and the projection 7 of being located at the sealing plate outside, projection 7 closely cooperates with bearing support 12 ends, and sealing plate 8 is around axle sleeve 11.Sealing plate 8 has the rectangular steel plates of labyrinth seal 4 for the center, and the running shaft 9 of tape spool cover passes from labyrinth seal 4, forms seal arrangement.Projection 7 is the square frame of lower openings.For the ease of assembling, sealing plate 8 and projection 7 are divided into upper and lower two parts along the horizontal plane by rotating shaft axis, and the upper and lower part 81,82 of sealing plate 8 is fixed in the end of bearing support 12 respectively by the upper and lower part 71,72 of projection 7.11 on bearing (ball) cover 10 and axle sleeve are provided with oil sealing sealing 2.Between oil sealing sealing 2 and the labyrinth seal 4, be fixed with seal ring 3 in axle sleeve 11 outsides.The external diameter of seal ring 3 is greater than the external diameter of labyrinth seal 4.8 of projection 7, axle sleeve 11 and sealing plates form cavity, and seal ring 3 is positioned at this cavity 6, all do not contact between seal ring 3 and bearing (ball) cover 10, sealing plate 8, the projection 7.Cavity 6 communicates with the space outerpace of running shaft 9 belows, is connected with baiting bucket 15, can enter the space outerpace of running shaft 9 belows through cavity 6 by the material of labyrinth seal 4, falls into baiting bucket 15.
Rubbish enters crusher chamber 5 by feed hopper 13 from the top, in crusher chamber 5, be extruded, shear, fragmentation, bigger particulate matter directly falls into the baiting bucket 15 of bottom, and labyrinth seal 4 can seal up most of dust of producing in the shattering process, particulate matter, liquid etc.; Because non-maintaining non-contact sealing has been adopted in labyrinth seal 4, event still has few part particulate matter, liquid can be by labyrinth seal 4, main shaft along rotation enters cavity 6, liquid and small particle are stopped by seal ring 3, the main shaft and the seal ring 3 of rotation get rid of it in baiting bucket 15 of cavity 6 bottoms, and oil sealing sealing 2 can prevent further that dust, particulate matter, liquid etc. from entering bearing 1.
Claims (9)
1. running shaft with seal arrangement, comprise axle sleeve, bearing, bearing support and bearing (ball) cover, it is characterized in that the axle sleeve outside also is provided with seal closure, seal closure covers axle sleeve from the top, comprise that sealing plate is with the projection of being located at the sealing plate outside, sealing plate is around axle sleeve, form seal arrangement with shaft room, projection and bearing support are sealed and matched, and form cavity between projection, axle sleeve and the sealing plate, described cavity communicates with the space outerpace of running shaft below, can enter the space outerpace of running shaft below through cavity by the material of seal arrangement.
2. the running shaft of band seal arrangement as claimed in claim 1 is characterized in that in the described cavity, also is fixed with seal ring in the axle sleeve outside, and described seal ring is between bearing (ball) cover and sealing plate.
3. the running shaft of band seal arrangement as claimed in claim 2, it is characterized in that seal ring and bearing (ball) cover, sealing plate, all do not contact between the projection.
4. the running shaft of band seal arrangement as claimed in claim 2 is characterized in that seal ring and axle sleeve are integrated.
5. as the running shaft of each described band seal arrangement among the claim 1-4, it is characterized in that also being provided with between sealing plate and the axle sleeve labyrinth seal.
6. the running shaft of band seal arrangement as claimed in claim 5 is characterized in that the external diameter of the external diameter of seal ring greater than labyrinth seal.
7. as the running shaft of each described band seal arrangement among the claim 1-4, it is characterized in that bearing (ball) cover and shaft room also are provided with oil sealing sealing.
8. as the running shaft of each described band seal arrangement among the claim 1-4, it is characterized in that described projection and bearing support end closely cooperate.
9. as the running shaft of each described band seal arrangement among the claim 1-4, it is characterized in that described seal closure covers the top and the side of axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920233642 CN201475329U (en) | 2009-07-31 | 2009-07-31 | Rotating shaft with sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920233642 CN201475329U (en) | 2009-07-31 | 2009-07-31 | Rotating shaft with sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201475329U true CN201475329U (en) | 2010-05-19 |
Family
ID=42411577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920233642 Expired - Fee Related CN201475329U (en) | 2009-07-31 | 2009-07-31 | Rotating shaft with sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201475329U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102085492A (en) * | 2010-12-31 | 2011-06-08 | 南京凯盛国际工程有限公司 | Combination sealing device of roller-type crusher housing end plate |
| CN102094974A (en) * | 2011-01-13 | 2011-06-15 | 浙江双辉剑机械有限公司 | Shaft end sealing device of steering gear of dune buggy |
| CN111140656A (en) * | 2020-02-28 | 2020-05-12 | 浙江尤奈特电机有限公司 | Sealing structure |
| CN112145656A (en) * | 2020-09-25 | 2020-12-29 | 中国兵器装备集团自动化研究所 | Energetic material sealing shaft sleeve device |
-
2009
- 2009-07-31 CN CN 200920233642 patent/CN201475329U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102085492A (en) * | 2010-12-31 | 2011-06-08 | 南京凯盛国际工程有限公司 | Combination sealing device of roller-type crusher housing end plate |
| CN102085492B (en) * | 2010-12-31 | 2012-07-04 | 南京凯盛国际工程有限公司 | Combination sealing device of roller-type crusher housing end plate |
| CN102094974A (en) * | 2011-01-13 | 2011-06-15 | 浙江双辉剑机械有限公司 | Shaft end sealing device of steering gear of dune buggy |
| CN102094974B (en) * | 2011-01-13 | 2014-07-16 | 浙江双辉剑机械有限公司 | Shaft end sealing device of steering gear of dune buggy |
| CN111140656A (en) * | 2020-02-28 | 2020-05-12 | 浙江尤奈特电机有限公司 | Sealing structure |
| CN112145656A (en) * | 2020-09-25 | 2020-12-29 | 中国兵器装备集团自动化研究所 | Energetic material sealing shaft sleeve device |
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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: 20100519 Termination date: 20170731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |