CN202594341U - Roller sealing device - Google Patents
Roller sealing device Download PDFInfo
- Publication number
- CN202594341U CN202594341U CN 201220204034 CN201220204034U CN202594341U CN 202594341 U CN202594341 U CN 202594341U CN 201220204034 CN201220204034 CN 201220204034 CN 201220204034 U CN201220204034 U CN 201220204034U CN 202594341 U CN202594341 U CN 202594341U
- Authority
- CN
- China
- Prior art keywords
- sealing member
- labyrinth seal
- protective cover
- interference fit
- carrying roller
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 94
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 29
- 231100000719 pollutant Toxicity 0.000 claims abstract description 28
- 230000001681 protective effect Effects 0.000 claims description 35
- 230000015572 biosynthetic process Effects 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a roller sealing device which comprises an inner labyrinth sealing ring accommodated inside a bearing seat, an outer labyrinth sealing ring, and a protecting cover in interference fit with a shaft, wherein an opening is formed between the protecting cover and the bearing seat, the inner labyrinth sealing ring is in interference fit with the shaft, and the outer labyrinth sealing ring is in interference fit with the bearing seat; a first sealing piece and a second sealing piece which are in interference fit with the outer labyrinth sealing ring are arranged between the protecting cover and the bearing seat, and the first sealing piece and the second sealing piece form axial microgaps with the inner wall of the protecting cover; and a first pollutant pile-up area is formed between the first sealing piece and the outer labyrinth sealing ring, and a second pollutant pile-up area is formed between the first sealing piece and the second sealing piece.
Description
Technical field
The utility model relates to the carrying roller field, relates in particular to a kind of carrying roller sealing arrangement of effective control containment ingression.
Background technology
Carrying roller is the maximum parts of consumption in the belt conveyer, is used for the weight of support belt and material.The size of the performance quality of carrying roller, life-span length, rotational resistance is very big to the influence of belt conveyer.Shown in Figure 1A, carrying roller is rectangular drum shape, the center be provided with axle 2 ', axle 2 ' two ends be equipped with bearing 3 ', bearing 3 ' through sealing arrangement 1 ' accomplish encapsulation, sealing arrangement 1 ' be set in axle 2 ' end face on.
Shown in Figure 1B, the sealing arrangement 1 of existing carrying roller ' be installed in bearing seat 31 ' with spools 2 ' between, be used for sealed bearings 3 '.Labyrinth seal 11 in the sealing arrangement ' comprise ', outer labyrinth seal 12 ', sealing member 13 ' and protective cover 16 '; Inside and outside labyrinth seal (11 ', 12 ') is outer be arranged with the sealing member 13 that the two ends, cross section are S shape '; Sealing member 13 ' outer covered protection lid 16 '; Sealing member 13 ' and outer labyrinth seal 12 ' between form a pollutants accumulate district 15 '; Sealing member 13 ' and protective cover 16 ' the middle part between form another pollutants accumulate district 15 ', sealing member 13 ' with protective cover 16 ' the outer between formation opened gap 14 '.
Carrying roller in use, axle 2 ' with outer labyrinth seal 12 ' and protective cover 16 ' interference fit.Therefore, outer labyrinth seal 12 ' with protective cover 16 ' with respect to axle 2 ' transfixion, interior labyrinth seal 11 ' with sealing member 13 ' with respect to axle 2 ', outer labyrinth seal 12 ' and protective cover 16 ' rotation.So interior labyrinth seal 11 ' and sealing member 13 ' one group of runner assembly of formation; Outer labyrinth seal 12 ' and protective cover 16 ' one group of stationary components of formation; Must reserve certain clearance between runner assembly and the stationary components and relatively rotate smoothly keeping, for example opened gap 14 '.Because opened gap 14 ' communicate with external environment, during use pollutantss such as some water and coal dust can through opened gap 14 ' enter into sealing arrangement 1 '.The centnifugal force that the rotation of pollutants through carrying roller self produces be stored in pollutants accumulate district 15 ' in, be unlikely to pollute bearing 3 ', with this guarantee bearing 3 ' service life.
But such way finally cause pollutants accumulate district 15 ' pollutants more and more.Again because sealing member 13 ' with respect to outer labyrinth seal 12 ' with protective cover 16 ' rotation; Sealing member 13 ' and outer labyrinth seal 12 ' and protective cover 16 ' between pollutants accumulate district 15 ' in pollutants many more, the rotational resistance that produces during rotation is just big more.Moreover pollutants and lithium base grease mix for a long time, also can pollute the lubricated of bearing, the life-span of reducing bearing and carrying roller.
The utility model content
The purpose of the utility model is to overcome the deficiency of prior art, and the carrying roller sealing arrangement of a kind of effective control containment ingression, reduction rotational resistance is provided.
The technical scheme of the utility model provides a kind of carrying roller sealing arrangement; Comprise and be housed in interior labyrinth seal, outer labyrinth seal in the bearing seat; Protective cover with the axle interference fit; Form opened gap between said protective cover and the said bearing seat, said interior labyrinth seal and said axle interference fit, said outer labyrinth seal and said bearing seat interference fit; Be provided with first sealing member and second sealing member with said outer labyrinth seal interference fit between said protective cover and the said outer labyrinth seal, the inwall of said first sealing member and said second sealing member and said protective cover forms axial microgap; Form the first pollution thing between said first sealing member and the said outer labyrinth seal and accumulate the district, form second pollutants between said first sealing member and said second sealing member and accumulate the district.
Preferably, the miner diameter end of said outer labyrinth seal stretches out tube always towards said protective cover vertically; Said first sealing member comprises first cylinder with the axial interference fit of said straight tube; With with end face bonded assembly first circular conical surface of said first cylinder; The edge of said first circular conical surface and the inwall of said protective cover form primary shaft to microgap, and a side of said first circular conical surface and said first cylinder intersection labyrinth seal outside said forms the first pollution thing and accumulates the district.
Preferably; Said second sealing member comprises second cylinder with the axial interference fit of said straight tube; With with end face bonded assembly second circular conical surface of said second cylinder; The edge of said second circular conical surface and the inwall of said protective cover form the second axial microgap, and said second circular conical surface and the said second cylinder intersection form second pollutants towards a side of said first sealing member and accumulate the district.
Preferably, said second sealing member and said first sealing member are identical.
Preferably, comprise also and the distance sleeve of said axle interference fit that one end of said distance sleeve is against said interior labyrinth seal, the other end of said distance sleeve is against said protective cover.
Preferably, the width of said axial microgap is 0.5-1mm, and the width of said opened gap is 2 times of said axial microgap width.
After adopting technique scheme, has following beneficial effect: owing to utilize first sealing member and second sealing member to form that the first pollution thing accumulates the district and second pollutants accumulates the district.When containment ingression behind opened gap; Be introduced into the first pollution thing and accumulate the district; And be not easy to enter in the middle of the axial microgap, the pollutants that the first pollution thing accumulates in the district also can be discharged from along with the centnifugal force of carrying roller self rotation, thereby controls containment ingression effectively in labyrinth seal.Even pollutants has passed through axial microgap and has got into second pollutants and accumulate the district, will be collected and be stored in here, further control enters into labyrinth seal.
Description of drawings
Figure 1A is the structural representation of existing carrying roller;
Figure 1B is the partial enlarged drawing of A part among Fig. 1;
Fig. 2 is the cutaway view of the utility model carrying roller sealing arrangement one embodiment;
Fig. 3 is the partial enlarged drawing of the utility model carrying roller sealing arrangement one embodiment;
Fig. 4 is the cutaway view of first sealing member among the utility model carrying roller sealing arrangement one embodiment;
Fig. 5 is the cutaway view of second sealing member among the utility model carrying roller sealing arrangement one embodiment.
The Reference numeral synopsis:
1 '---sealing arrangement 2 '---axle 3 '---sealed bearings
11 '---interior labyrinth seal 12 '---outer labyrinth seal 13 '---sealing member
14 '---opened gap 15 '---pollutants accumulate district 16 '---protective cover
31 '---bearing seat
1---carrying roller sealing arrangement 2---axle 3---bearing
11---the outer labyrinth seals of protective cover 12---interior labyrinth seal 13---
14---first sealing member 15---second sealing member 16---distance sleeves
31---the straight tubes of bearing seat 111---opened gap 131---
141---the first pollution thing accumulates district 142---, primary shaft was to microgap
143---first cylinders 144---, first circular conical surface
151---second pollutants accumulates distinguishes 152---, the second axial microgap
153---second cylinders 154---, second circular conical surface
The specific embodiment
Further specify the specific embodiment of the utility model below in conjunction with accompanying drawing.
Indication interior or all be for the center-point of axle outward among the utility model embodiment, from the center-point of axle nearer be in, from the center-point of axle far away be outside.
Shown in Fig. 2-5; The carrying roller sealing arrangement comprise be housed in the bearing seat 31 in labyrinth seal 12, outer labyrinth seal 13; Protective cover 11 with axle 2 interference fit; Form opened gap 111 between protective cover 11 and the bearing seat 31, interior labyrinth seal 12 and axle 2 interference fit, outer labyrinth seal 13 and bearing seat 31 interference fit; Be provided with between protective cover 11 and the outer labyrinth seal 13 with first sealing member 14 of outer labyrinth seal 13 interference fit and the inwall of second sealing member, 15, the first sealing members 14 and second sealing member 15 and protective cover 11 and form first, second axial microgap (142,152); Forming the first pollution thing between first sealing member 14 and the outer labyrinth seal 13 accumulates and forms second pollutants between district's 141, the first sealing members 14 and second sealing member 15 and accumulate and distinguish 151.
When pollutants when opened gap 111 gets into, at first enter into the first pollution thing and accumulate district 141 owing to primary shaft is arranged to microgap 142, pollutants is not easy to enter into second pollutants and accumulates district 151.Again owing to first sealing member 14 and outer labyrinth seal 13 all rotate with respect to axle 2; Pollutants accumulates 141 places, district at the first pollution thing; Rotate with first sealing member 14 and outer labyrinth seal 13; The centnifugal force that rotates along with carrying roller self is discharged from, thereby controls containment ingression effectively in labyrinth seal.Under the situation of environment for use very severe; The part pollutants still enters into second pollutants through primary shaft to microgap 142 and accumulates district 151 and be housed in here; Further in the axial microgap 152 of control containment ingression to the second, reduce pollution to labyrinth seal.
In the present embodiment, the miner diameter end of outer labyrinth seal 13 stretches out tube 131 always towards protective cover 11 vertically; As shown in Figure 4; First sealing member 14 comprises first cylinder 143 with straight tube 131 axial interference fit; With with end face bonded assembly first circular conical surface 144 of first cylinder 143; The inwall of the edge of first circular conical surface 144 and protective cover 11 forms primary shaft and accumulates district 141 to the side formation first pollution thing of microgap 142, the first circular conical surfaces 144 and first cylinder, 143 intersection outward labyrinth seals 13.
In the present embodiment; As shown in Figure 5; Second sealing member 15 comprises second cylinder 153 with straight tube 131 axial interference fit; Forming second axial microgap 152, the second circular conical surfaces 154 and second cylinder, 153 intersections with inwall with the edge of end face bonded assembly second circular conical surface 154, the second circular conical surfaces 154 of second cylinder 153 and protective cover 11 forms second pollutants towards a side of first sealing member 14 and accumulates and distinguish 151.
Preferably, second sealing member 14 and first sealing member 15 are identical.Same mould-manufacturing capable of using is saved cost.Certainly; First sealing member 14 and second sealing member 15 also can be different, and first circular conical surface 144 can be positioned at the middle part of first cylinder 143, or the outermost end of first cylinder 143; Second circular conical surface 154 can be positioned at the middle part of second cylinder 153, or the outermost end of second cylinder 153.
Preferably, comprise also and the distance sleeve 16 of axle 2 interference fit that one end of distance sleeve 16 is against interior labyrinth seal 12, the other end of distance sleeve 16 is against protective cover 11.Distance sleeve 16 can be one-body molded with interior labyrinth seal 12, also can be one-body molded with protective cover 11.
Preferably, axially the width of microgap is 0.5-1mm, and the width of opened gap is 2 times of axial microgap width.
Above-described only is the principle and the preferred embodiment of the utility model.Should be pointed out that for the person of ordinary skill of the art, on the basis of the utility model principle, can also make some other modification, also should be regarded as the protection domain of the utility model.
Claims (6)
1. carrying roller sealing arrangement; Comprise and be housed in interior labyrinth seal, outer labyrinth seal in the bearing seat; With the protective cover of axle interference fit, form opened gap between said protective cover and the said bearing seat, it is characterized in that; Labyrinth seal and said axle interference fit in said, said outer labyrinth seal and said bearing seat interference fit;
Be provided with first sealing member and second sealing member with said outer labyrinth seal interference fit between said protective cover and the said outer labyrinth seal, the inwall of said first sealing member and said second sealing member and said protective cover forms axial microgap;
Form the first pollution thing between said first sealing member and the said outer labyrinth seal and accumulate the district, form second pollutants between said first sealing member and said second sealing member and accumulate the district.
2. carrying roller sealing arrangement according to claim 1 is characterized in that, the miner diameter end of said outer labyrinth seal stretches out tube always towards said protective cover vertically;
Said first sealing member comprises first cylinder with the axial interference fit of said straight tube; With with end face bonded assembly first circular conical surface of said first cylinder; The edge of said first circular conical surface and the inwall of said protective cover form primary shaft to microgap, and a side of said first circular conical surface and said first cylinder intersection labyrinth seal outside said forms the first pollution thing and accumulates the district.
3. carrying roller sealing arrangement according to claim 2; It is characterized in that; Said second sealing member comprises second cylinder with the axial interference fit of said straight tube; With with end face bonded assembly second circular conical surface of said second cylinder, the edge of said second circular conical surface and the inwall of said protective cover form the second axial microgap, said second circular conical surface and the said second cylinder intersection form second pollutants towards a side of said first sealing member and accumulate the district.
4. carrying roller sealing arrangement according to claim 1 is characterized in that, said second sealing member and said first sealing member are identical.
5. carrying roller sealing arrangement according to claim 1 is characterized in that, comprises also and the distance sleeve of said axle interference fit that one end of said distance sleeve is against said interior labyrinth seal, and the other end of said distance sleeve is against said protective cover.
6. carrying roller sealing arrangement according to claim 1 is characterized in that, the width of said axial microgap is 0.5-1mm, and the width of said opened gap is 2 times of said axial microgap width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220204034 CN202594341U (en) | 2012-05-08 | 2012-05-08 | Roller sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220204034 CN202594341U (en) | 2012-05-08 | 2012-05-08 | Roller sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202594341U true CN202594341U (en) | 2012-12-12 |
Family
ID=47311902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220204034 Expired - Lifetime CN202594341U (en) | 2012-05-08 | 2012-05-08 | Roller sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202594341U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129612A (en) * | 2013-05-02 | 2014-11-05 | 力博重工科技股份有限公司 | A taper-shape ultra high molecular weight polyethylene spiral carrier roller |
| CN106862897A (en) * | 2017-01-11 | 2017-06-20 | 山西太钢不锈钢股份有限公司 | A kind of supporting roller sealing press-loading head |
| CN108296742A (en) * | 2017-01-11 | 2018-07-20 | 山西太钢不锈钢股份有限公司 | A kind of carrying roller tooling technique |
| CN109230345A (en) * | 2018-09-27 | 2019-01-18 | 禹州市昆仑模具有限公司 | A kind of idler wheel and its mounting means |
| CN110745488A (en) * | 2019-10-29 | 2020-02-04 | 神华神东煤炭集团有限责任公司 | Carrier roller device and carrier roller equipment |
-
2012
- 2012-05-08 CN CN 201220204034 patent/CN202594341U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129612A (en) * | 2013-05-02 | 2014-11-05 | 力博重工科技股份有限公司 | A taper-shape ultra high molecular weight polyethylene spiral carrier roller |
| CN106862897A (en) * | 2017-01-11 | 2017-06-20 | 山西太钢不锈钢股份有限公司 | A kind of supporting roller sealing press-loading head |
| CN108296742A (en) * | 2017-01-11 | 2018-07-20 | 山西太钢不锈钢股份有限公司 | A kind of carrying roller tooling technique |
| CN109230345A (en) * | 2018-09-27 | 2019-01-18 | 禹州市昆仑模具有限公司 | A kind of idler wheel and its mounting means |
| CN110745488A (en) * | 2019-10-29 | 2020-02-04 | 神华神东煤炭集团有限责任公司 | Carrier roller device and carrier roller equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |