CN201647606U - Supporting roller of double sealing tapes type conveyor with high accuracy - Google Patents
Supporting roller of double sealing tapes type conveyor with high accuracy Download PDFInfo
- Publication number
- CN201647606U CN201647606U CN2009202388073U CN200920238807U CN201647606U CN 201647606 U CN201647606 U CN 201647606U CN 2009202388073 U CN2009202388073 U CN 2009202388073U CN 200920238807 U CN200920238807 U CN 200920238807U CN 201647606 U CN201647606 U CN 201647606U
- Authority
- CN
- China
- Prior art keywords
- sealing
- labyrinth
- carrying roller
- supporting roller
- bearing chamber
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 48
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 238000012856 packing Methods 0.000 claims description 20
- 229920002635 polyurethane Polymers 0.000 claims description 16
- 239000004814 polyurethane Substances 0.000 claims description 16
- 210000004907 gland Anatomy 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000004519 grease Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
- F16C13/02—Bearings
- F16C13/022—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/80—Labyrinth sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/58—Conveyor systems, e.g. rollers or bearings therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
Abstract
The utility model discloses a supporting roller of double sealing tapes type conveyor with high accuracy, which comprises a supporting roller body with high accuracy, and a labyrinth contact type double sealing device; the supporting roller shaft is sleeved in the supporting roller body by a bearing chamber; a bearing and a bearing sealing contact type double sealing device are disposed in the bearing chamber. The roller is characterized in that: the sealing device is a double sealing structure; wherein the inner sealing is a labyrinth sealing; the outer sealing is a contact type sealing; and the contact type sealing does not contact directly with the supporting roller shaft. the supporting roller body is a cold drown or cold pressed welding pipe with high accuracy; the bearing chamber is press fitted and welded into the supporting roller body. By applying double sealing structures of inner-labyrinth / outer-contact, and applying a supporting roller made of cold drown or cold pressed material, the utility model achieves the advantages of small ovality, small radial jump, good sealing effect and long service life of the supporting roller.
Description
One, technical field
The utility model relates to a kind of high precision double containment belt conveyer carrying roller.
Two, background technology
The belt feeder carrying roller is extensive use of by the colliery, but because existing carrying roller out of roundness and radial runout are big, adds that abominable environments for use such as down-hole humidity, dust, trickle make shorten the service life of down-hole belt feeder carrying roller, and the maintenance capacity of carrying roller is big, expense is high.
Existing carrying roller is used better seal two kinds: 1, DTII type high sealing; 2, soft material such as polyurethane and the sealing of axle direct contact.Two kinds of sealings all have dustproof and waterproof, but shortcoming is respectively arranged: DTII type high sealing is because outer gland sealing exists the gap, and the sealing labyrinth packing made the sealing effectiveness variation thereby enter bearing in dirt, the water capacity easily entered; Polyurethane contact-type seals such as (soft seals) is because multiple tracks contact wire and roller carrier shaft direct contact contact resistance are big, and because roller carrier shaft is the iron axle, down-hole dirt and cargo sweat, thus cause the big and iron of sealing place resistance very easily to corrode accelerated wear test, wearing and tearing backs seal break-off makes the carrying roller lost of life.
Existing belt conveyer carrying roller roll body directly with ratio-frequency welded tube directly block, car bearing chamber hole, welding bearing chamber form, even preferably belt conveyer with electric welded steel pipe (GB/T13792-1992) its outside dimension more senior (as
Greater than ± 0.4), wall thickness is ± 0.24, this kind carrying roller out of roundness, radial beat eccentricity are all bigger, be difficult to guarantee carrying roller radial run-out amount (as
～108 is 0.5mm).
Three, summary of the invention
The utility model is to above weak point, a kind of high precision double containment belt conveyer carrying roller is provided, the contact double sealing structure is adopted in the inboard labyrinth and the outside of adopting of this carrying roller sealing arrangement, roll body adopts the cold-drawn or the high precision welded tube of colding pressing, has good sealing effect, characteristics such as out of roundness and radial runout are little.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of high precision double containment belt conveyer carrying roller, comprise carrying roller roll body and roller carrier shaft, carrying roller roll body two side ends mouth internal fixation has bearing chamber, be arranged with roller carrier shaft and bearing in the bearing chamber, in the bearing chamber, the bearing outside is provided with sealing arrangement, described sealing arrangement is a double sealing structure, is sealed into labyrinth packing in wherein, outer gland sealing is a contact-type seal, contact-type seal and the non-direct contact of iron roller carrier shaft; The carrying roller roll body is selected cold-drawn for use or is colded pressing the high precision welded tube.
Labyrinth seal and the labyrinth packing that cooperates with interior labyrinth lid were marked with lithium grease in sealing comprised in the above-mentioned labyrinth in the labyrinth packing, labyrinth packing cover be set on the roller carrier shaft and with roller carrier shaft be interference fit.Described contact outer gland sealing comprises iron skeleton overcoat and polyurethane seal ring, and the projection that the polyurethane sealed outer ring is set in the iron skeleton, inner ring is arranged with the labyrinth packing lid is not with the roller carrier shaft direct contact.Contact polyurethane seal ring and iron skeleton are interference fit, interior labyrinth, iron skeleton, polyurethane seal ring and bearing chamber interference fit.
The utility model compared with prior art has the following advantages:
The polyurethane seal ring (soft seal) of contact-type seal is set on the labyrinth packing lid projection and contacts with the iron between centers, the resistance large sealing packing ring that polyurethane seal ring and carrying roller iron axle direct contact cause, the phenomenon of axle quick abrasion have been avoided, the sealing effectiveness of outer gland sealing is strengthened, and keeps excellent sealing and period of service and prolongs.In the sealing labyrinth packing similar to original labyrinth packing, have the twice maze trough that prevents dust, and be marked with lithium grease in the maze trough, prevent dust again, waterproof, dirt, water are not easy to enter in the bearing, and the sealing effectiveness of bearing is strengthened.
Adopt double sealing structure, though outer gland sealing (contact-type seal) damage the back also have in the sealing labyrinth further seal, dustproof, waterproof effect is remarkable, make the carrying roller life-span improve greatly, maintenance capacity reduces.
Select cold-drawn for use or the ratio-frequency welded tube of colding pressing, have out of roundness better, advantage of high precision, its circularity can reach ± below 0.04, external diameter reaches ± and below 0.07, because it is little that drawn tube changes, select out of roundness is lower, precision is high bearing chamber directly to be pressed in the drawn tube again and get final product, stopped to cause in the former car bearing chamber hole phenomenon of bigger error.The radial beat eccentricity that makes carrying roller than existing standard MT821-2006 (
Radial beat eccentricity is 0.5) improve greatly.The running resistance of dragging roller reduces greatly, and increase substantially service life.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model.
Five, the specific embodiment
The following correlation technique content of not addressing all can adopt or use for reference prior art.
As shown in Figure 1, a kind of high precision double containment belt conveyer carrying roller, comprise roller carrier shaft 1 and carrying roller roll body 7, described carrying roller roll body 7 adopts the cold-drawn or the high precision welded tube of colding pressing, inboard, carrying roller roll body 7 two ends press-fits and is welded with bearing chamber 9, roller carrier shaft 1 is sleeved in the carrying roller roll body 7 by bearing chamber 9, axle card 2, is set with bearing 8 in the bearing chamber 9, and bearing 8 outsides are provided with labyrinth contact double seal.
Described labyrinth contact double seal comprises sealing and contact outer gland sealing in the labyrinth, labyrinth seal 6 and labyrinth packing lid 5 in wherein labyrinth packing comprises, the end face that interior labyrinth seal 6 contacts with bearing 8 is a spill, the boss face of concave structure is near the outer ring of bearing 8, labyrinth packing lid 5 cooperates with interior labyrinth seal 6 and is set on the roller carrier shaft 1, and interior labyrinth seal 6 and roller carrier shaft 1 are interference fit.The contact outer gland sealing comprises polyurethane seal ring 4 and iron skeleton overcoat 3, polyurethane seal ring 4 is set on the projection of labyrinth packing lid 5, the polyurethane seal ring 4 outer iron skeletons 3 that are arranged with, wherein polyurethane seal ring 4 is interference fit with bearing chamber 9, interior labyrinth seal 6 with bearing chamber 9 with iron skeleton overcoat 3, iron skeleton overcoat 3.
During use, inwardly a small amount of lithium greasies of filling carry out that the labyrinth is dustproof, waterproof in labyrinth seal 6 and the labyrinth packing lid 5.
This shows, this carrying roller hermetically-sealed construction adopts double containment form, carrying roller roll body to select cold-drawn for use or cold pressing the high precision welded tube, be sealed into labyrinth contact double containment, dustproof, good water-proof effect, the carrying roller roll body is because employing is colded pressing or cold-drawn high precision welded tube, and the little life-span of radial beat eccentricity is than significantly improving originally.
Claims (5)
1. high precision double containment belt conveyer carrying roller, comprise carrying roller roll body and labyrinth contact double seal, carrying roller roll body two side ends mouth internal fixation has bearing chamber, be arranged with roller carrier shaft and bearing in the bearing chamber, bearing chamber is interior, the bearing outside is provided with sealing arrangement, it is characterized in that: described sealing arrangement is a double sealing structure, is sealed into labyrinth packing in wherein, and outer gland sealing is a contact-type seal.
2. high precision double containment belt conveyer carrying roller according to claim 1 is characterized in that: described carrying roller roll body adopts the cold-drawn or the high precision welded tube of colding pressing, and bearing chamber press-fits and is weldingly fixed in the carrying roller roll body.
3. high precision double containment belt conveyer carrying roller according to claim 1, it is characterized in that: labyrinth seal and the labyrinth packing that cooperates with interior labyrinth seal lid in described labyrinth packing comprises, wherein labyrinth packing cover be set on the roller carrier shaft and with roller carrier shaft be interference fit.
4. high precision double containment belt conveyer carrying roller according to claim 1, it is characterized in that: described contact outer gland sealing comprises iron skeleton overcoat and polyurethane seal ring, polyurethane seal ring outer ring is set in the iron skeleton, inner ring is set in labyrinth packing and covers, and polyurethane seal ring and iron skeleton are interference fit.
5. according to claim 3 or 4 described high precision double containment belt conveyer carrying rollers, it is characterized in that: interior labyrinth seal, iron skeleton, polyurethane seal ring and bearing chamber interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202388073U CN201647606U (en) | 2009-09-24 | 2009-09-24 | Supporting roller of double sealing tapes type conveyor with high accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202388073U CN201647606U (en) | 2009-09-24 | 2009-09-24 | Supporting roller of double sealing tapes type conveyor with high accuracy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201647606U true CN201647606U (en) | 2010-11-24 |
Family
ID=43112836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202388073U Expired - Fee Related CN201647606U (en) | 2009-09-24 | 2009-09-24 | Supporting roller of double sealing tapes type conveyor with high accuracy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201647606U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363466A (en) * | 2011-11-18 | 2012-02-29 | 戴亚辉 | Axial laminated contact/noncontact combined sealing tape type conveyer plastic carrier roller |
| CN105383886A (en) * | 2015-11-04 | 2016-03-09 | 北方重工集团有限公司 | Composite cold pressing, synthesizing and cementing carrier roller |
-
2009
- 2009-09-24 CN CN2009202388073U patent/CN201647606U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363466A (en) * | 2011-11-18 | 2012-02-29 | 戴亚辉 | Axial laminated contact/noncontact combined sealing tape type conveyer plastic carrier roller |
| CN102363466B (en) * | 2011-11-18 | 2013-03-06 | 戴亚辉 | Axial laminated contact/noncontact combined sealing tape type conveyer plastic carrier roller |
| CN105383886A (en) * | 2015-11-04 | 2016-03-09 | 北方重工集团有限公司 | Composite cold pressing, synthesizing and cementing carrier roller |
| CN105383886B (en) * | 2015-11-04 | 2017-12-12 | 北方重工集团有限公司 | A kind of compound cold pressing rubber polymer connects carrying roller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG JINTIANNIU MINING MACHINERY CO., LTD. Free format text: FORMER OWNER: NIU ZHIPING Effective date: 20141209 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 271221 TAIAN, SHANDONG PROVINCE TO: 271200 TAIAN, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141209 Address after: 271200 Shandong city of Xintai province small town Industrial Park Patentee after: Shandong Jintianniu Mining Machinery Co., Ltd. Address before: 271221 Shandong city of Xintai province small town Industrial Park Jin longicorn Mining Machinery Co. Patentee before: Niu Zhiping |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20170924 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |