CN203903362U - High-tightness carrier roller with adjustable pre-tightening force - Google Patents
High-tightness carrier roller with adjustable pre-tightening force Download PDFInfo
- Publication number
- CN203903362U CN203903362U CN201420259861.7U CN201420259861U CN203903362U CN 203903362 U CN203903362 U CN 203903362U CN 201420259861 U CN201420259861 U CN 201420259861U CN 203903362 U CN203903362 U CN 203903362U
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- China
- Prior art keywords
- bearing seat
- preload
- projection
- sealed support
- 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 - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 230000036316 preload Effects 0.000 claims description 67
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 5
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 6
- 239000003245 coal Substances 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000012913 prioritisation Methods 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Rolls And Other Rotary Bodies (AREA)
Abstract
The utility model discloses a high-tightness carrier roller with adjustable pre-tightening force. The high-tightness carrier roller comprises a roller body, a bearing block disposed on the inner wall of the roller body, a ball bearing mounted on the bearing block, bearing block positioning pins, a washer, a seal support, a seal ring, a pre-tightening member and a carrier roller shaft. The bearing block is axially positioned through the bearing block positioning pins, the pre-tightening member is fitly connected with the roller body, the washer whereby an axial gap is eliminated is disposed between the pre-tightening member and the ball bearing, the seal support is disposed between the bearing block and the seal ring, the seal ring is disposed between the seal support and the carrier roller shaft, and the seal ring and the seal support are tightly combined to form contact sealing. The pre-tightening member is in labyrinth sealing with the bearing block and the seal support. The high-tightness carrier roller is good in tightness; the labyrinth sealing formed by the pre-tightening member with the seal support and the bearing block well protects the bearing from pollution, the service life of the high-tightness carrier roller is prolonged, social and economic benefits are high, and the high-tightness carrier roller is applicable to operation in severe coal mine environments.
Description
Technical field
The utility model belongs to belt conveyer tranmission techniques field, relates to a kind of high sealing carrying roller of preload adjustable.
Background technology
Ribbon conveyer is the major equipment transporting continuously in fields such as metallurgy, mine, chemical industry, harbour, building materials.Carrying roller distributes along belt conveyer total length, is worth and accounts for 20% of complete machine.Carrying roller is vitals and the consumable accessory on belt conveyer, and its quality directly affects drive ability and the safety of conveyer.The service expenditure of carrying roller is the chief component of belt conveyer running cost, and travelling apron maintenance workload 80% be change carrying roller.
Along with travelling apron is to the at a high speed development of (being increased to 4.5m/s by 2.5m/s), large conveying quantity and long haul distance direction, carrying roller is also proposed to new requirement: at a high speed, heavy duty, long life.But by the research of domestic travelling apron service condition is found, the mea life of domestic carrying roller is far below design life (30,000～50,000h), generally at 8000～10,000h.Transform traditional carrying roller, have: " a kind of high molecular plastic carrier roller " application number 201020212745.1, publication number CN201670549U, it is, at bearing seat outer face, ring-type bulge loop is set, ring-type bulge loop coordinates with the circular groove of offering on roll body inwall, give inconvenience is installed like this, after long-time running, make bearing seat rotate along roll body, well fixed bearing block." coal mine under-well plastic roller " application number 200920024488.6, publication number CN201406197Y, it carries out axial restraint with outer back-up ring to seal ring, seal ring is directly exposed to outside, easily contact with larger coal cinder, sealing property is bad, easily occurs stuck phenomenon." nylon carrying roller " application number 200920282916.5, publication number CN201678269U, its bearing seat the inside does not have sealing arrangement, but by the seal cover cap of bearing seat outer face, the indoor bearing of bearing seat is sealed, moisture can directly enter in bearing seat in a humid environment, corrode bearing, sealing effectiveness is poor." a kind of carrying roller " application number 200910064235.6, publication number 101804905A, on its bearing seat, edge is with the flange of location, but the area of contact of this bearing seat and roll body is larger, assembly stress is large, and it does not have anti-sticking back-up ring, make the windrow on belt conveyer side cause damage to bearing seat inside, reduce the life-span of carrying roller.
Utility model content
Of the present utility modelly be to provide a kind of preload adjustable carrying roller, the leak tightness that is intended to solve China's carrying roller is poor, and service life is low, and anti-fire-retardant antistatic property is poor, and the nonadjustable problem of predetermincd tension.
In order to address the above problem, the technical scheme that the utility model adopts is:
A kind of high sealing carrying roller of preload adjustable, its special character is, the contact sealing nylon carrying roller of described adjustable shaft bearing predetermincd tension comprises roll body, is arranged at the bearing seat of carrying roller inwall, is arranged on ball-bearing casing, bearing seat locating dowel pin, pad, sealed support, seal ring, preload piece, roller carrier shaft on bearing seat;
The both sides up and down of described bearing seat are provided with positioning groove, bearing seat carries out axial location by bearing seat locating dowel pin, roller carrier shaft is arranged on the midway location of preload piece, preload piece and roller carrier shaft are connected, between preload piece and ball-bearing casing, be provided with the pad of eliminating endplay, pad is arranged on roller carrier shaft; Described sealed support is arranged between bearing seat and seal ring, between sealed support and roller carrier shaft, is provided with seal ring, and seal ring and sealed support are closely linked, and forms contact-type seal.
Further, described sealed support is that a cross section is U-shaped annulus, and this annulus is provided with the U-shaped groove of a circle.
Further, described preload piece is the pre-load nut with double-deck annular groove, this pre-load nut is provided with the first projection and the second projection, the first projection is positioned at the periphery of the second projection, the contact portion of this pre-load nut and roller carrier shaft is provided with screw thread, on bearing seat, be provided with the groove matching with the first projection, the first projection is embedded in groove, the second projection is embedded in the U-shaped groove of sealed support, preload piece and sealed support, bearing seat are closely linked, and preload piece and bearing seat, sealed support form labyrinth packing.
Further, between described roller carrier shaft lateral surface and bearing seat medial surface, be arranged with seal disc, seal disc is installed on ball-bearing casing inner side.
Further, described roll body is the body that adopts ultrahigh molecular weight polyethylene to become.
The high sealing carrying roller of the preload adjustable that the utility model provides, good seal performance, conveying efficiency is high, is applicable to carry out work under the harsh environment in colliery; The utility model smooth running can move under higher speed; The use of preload piece, can adjust predetermincd tension; Preload piece and sealed support, bearing seat form labyrinth seal and well protect bearing in case polluted, and have extended the service life of carrying roller, have higher Social benefit and economic benefit.
Brief description of the drawings
Fig. 1 is the high sealing idler structure figure of the utility model preload adjustable;
Fig. 2 is the bearing seat figure of the high sealing carrying roller of the utility model preload adjustable;
Fig. 3 is the preload piece figure of the high sealing carrying roller of the utility model preload adjustable;
In figure: 1-roll body; 2-bearing seat; 3-ball-bearing casing; 4-bearing seat locating dowel pin; 5-pad; 6-sealed support; 7-seal ring; 8-preload piece; 9-roller carrier shaft, 10-U type groove, 11-the first projection, 12-the second projection, 13-groove, 14-screw thread, 15-seal disc.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 shows the high sealing idler structure of the preload adjustable that the utility model provides.For convenience of explanation, only show the part relevant to the utility model.
The high sealing carrying roller of the preload adjustable of the utility model embodiment, comprise roll body 1, be arranged at roll body 1 inwall bearing seat 2, be arranged on ball-bearing casing 3, bearing seat locating dowel pin 4, pad 5, sealed support 6, seal ring 7, preload piece 8, roller carrier shaft 9 on bearing seat 2;
The both sides up and down of bearing seat 2 are provided with positioning groove, bearing seat 2 carries out axial location by bearing seat locating dowel pin 4, roller carrier shaft 9 is arranged on the midway location of preload piece 8, preload piece 8 is connected with roller carrier shaft 9, between preload piece 8 and ball-bearing casing 3, be provided with the pad 5 of eliminating endplay, pad 5 is arranged on roller carrier shaft 9; Sealed support 6 is arranged between bearing seat 2 and seal ring 7, between sealed support 6 and roller carrier shaft 9, is provided with seal ring 7, and seal ring 7 is closely linked with sealed support 6, forms contact-type seal.
As a prioritization scheme of the utility model embodiment, sealed support 6 is that a cross section is U-shaped annulus, and this annulus is provided with the U-shaped groove 10 of a circle.
As a prioritization scheme of the utility model embodiment, preload piece 8 is for having the pre-load nut of double-deck annular groove, this pre-load nut is provided with the first projection 11 and the second projection 12, the first projection 11 is positioned at the periphery of the second projection 12, the contact portion of this pre-load nut and roller carrier shaft 9 is provided with screw thread 14, on bearing seat 2, be provided with the groove 13 matching with the first projection 11, the first projection 11 is embedded in groove 13, the second projection 12 is embedded in the U-shaped groove 10 of sealed support 6, preload piece 8 and sealed support 6, bearing seat 2 is closely linked, preload piece 8 and bearing seat 2, sealed support 6 forms labyrinth packing.
As a prioritization scheme of the utility model embodiment, between roller carrier shaft 9 lateral surfaces and bearing seat 2 medial surfaces, be arranged with seal disc 15, seal disc 4 is installed on ball-bearing casing 3 inner sides.
As a prioritization scheme of the utility model embodiment, the body of roll body 1 for adopting ultrahigh molecular weight polyethylene to become.
Below in conjunction with drawings and the specific embodiments, application principle of the present utility model is further described.
As shown in Figure 1-Figure 3, the high sealing carrying roller of the preload adjustable of the utility model embodiment comprises: roll body 1, be arranged at carrying roller 1 inwall bearing seat 2, be arranged on ball-bearing casing 3, bearing seat locating dowel pin 4, pad 5, sealed support 6, seal ring 7, preload piece 8, roller carrier shaft 9 on bearing seat 2;
The both sides up and down of bearing seat 2 are provided with positioning groove, be convenient to the axial location of bearing seat, bearing seat 2 carries out axial location by bearing seat locating dowel pin 4, roller carrier shaft 9 is arranged on the midway location of preload piece 8, preload piece 8 is connected with roller carrier shaft 9, between preload piece 8 and ball-bearing casing 3, be provided with the pad 5 of eliminating endplay, pad 5 is arranged on roller carrier shaft 9; Sealed support 6 is arranged between bearing seat 2 and seal ring 7, between sealed support 6 and roller carrier shaft 9, is provided with seal ring 7, and seal ring 7 is closely linked with sealed support 6, forms contact-type seal, to strengthen waterproof and dustproof function.
Sealed support 6 is that a cross section is U-shaped annulus, and this annulus is provided with the U-shaped groove 10 of a circle, and sealed support 6 can position ball-bearing casing.
Fig. 3 has shown the structural representation of the preload piece of the high sealing carrying roller of the preload adjustable that the utility model provides, preload piece 8 is for having the pre-load nut of double-deck annular groove, this pre-load nut is provided with the first projection 11 and the second projection 12, the first projection 11 is positioned at the periphery of the second projection 12, the contact portion of this pre-load nut and roller carrier shaft 9 is provided with screw thread 14, preload piece 8 can regulate installation pretightening force, disassembling, assembling and replacing maintenance easily.Fig. 2 has shown the structural representation of bearing seat, on bearing seat 2, be provided with the groove 13 matching with the first projection 11, the first projection 11 is embedded in groove 13, the second projection 12 is embedded in the U-shaped groove 10 of sealed support 6, preload piece 8 is closely linked with sealed support 6, bearing seat 2, and preload piece 8 forms labyrinth packing with bearing seat 2, sealed support 6.
The three-layer sealed structure that seal ring 7 is made for nylon, can significantly strengthen sealing property.
Between roller carrier shaft 9 lateral surfaces and bearing seat 2 medial surfaces, be arranged with seal disc 15, seal disc 15 is installed on ball-bearing casing 3 inner sides.
The body of roll body 1 for adopting ultrahigh molecular weight polyethylene to become, compared with steel, the quality of ultra-high molecular weight polyethylene is lighter, there is superpower anti-adhesion ability, resistance to abrasion is 8 times of resistance to abrasion of steel, corrosion stability is better, thereby the deadweight of the high sealing carrying roller of preload adjustable of the present utility model is less, can effectively reduce the running resistance of belt conveyer, and effectively reduce the power consumption of belt conveyer, meanwhile, the rotational resistance of carrying roller is less, can effectively extend the load-transfer device service life of belt conveyer.Resistance to abrasion and corrosion stability can effectively extend self in service life and can effectively expand the range of use of belt conveyer after improving.
The high sealing carrying roller of the preload adjustable of the utility model embodiment, good seal performance, smooth running can move under higher speed; The use of preload piece, can adjust predetermincd tension; Preload piece and sealed support, bearing seat form labyrinth seal and well protect bearing in case polluted, and have extended the service life of carrying roller, have higher Social benefit and economic benefit.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. the high sealing carrying roller of a preload adjustable, it is characterized in that, the high sealing carrying roller of described preload adjustable comprises roll body (1), is arranged at the bearing seat (2) of carrying roller (1) inwall, is arranged on ball-bearing casing (3), bearing seat locating dowel pin (4), pad (5), sealed support (6), seal ring (7), preload piece (8), roller carrier shaft (9) on bearing seat (2);
The both sides up and down of described bearing seat (2) are provided with positioning groove, bearing seat (2) carries out axial location by bearing seat locating dowel pin (4), roller carrier shaft (9) is arranged on the midway location of preload piece (8), preload piece (8) is connected with roller carrier shaft (9), between preload piece (8) and ball-bearing casing (3), be provided with the pad (5) of eliminating endplay, pad (5) is arranged on roller carrier shaft (9); Described sealed support (6) is arranged between bearing seat (2) and seal ring (7), between sealed support (6) and roller carrier shaft (9), be provided with seal ring (7), seal ring (7) is closely linked with sealed support (6), forms contact-type seal.
2. the high sealing carrying roller of preload adjustable according to claim 1, is characterized in that, described sealed support (6) is that a cross section is U-shaped annulus, and this annulus is provided with the U-shaped groove of a circle (10).
3. the high sealing carrying roller of preload adjustable according to claim 2, it is characterized in that, described preload piece (8) is for having the pre-load nut of double-deck annular groove, this pre-load nut is provided with the first projection (11) and the second projection (12), the first projection (11) is positioned at the periphery of the second projection (12), the contact portion of this pre-load nut and roller carrier shaft (9) is provided with screw thread (14), on bearing seat (2), be provided with the groove (13) matching with the first projection (11), the first projection (11) is embedded in groove (13), the second projection (12) is embedded in the U-shaped groove (10) of sealed support (6), preload piece (8) and sealed support (6), bearing seat (2) is closely linked, preload piece (8) and bearing seat (2), sealed support (6) forms labyrinth packing.
4. according to the high sealing carrying roller of the preload adjustable described in claim 1 or 3, it is characterized in that, between described roller carrier shaft (9) lateral surface and bearing seat (2) medial surface, be arranged with seal disc (15), seal disc (15) is installed on ball-bearing casing (3) inner side.
5. the high sealing carrying roller of preload adjustable according to claim 1, is characterized in that, the body of described roll body (1) for adopting ultrahigh molecular weight polyethylene to become.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259861.7U CN203903362U (en) | 2014-05-20 | 2014-05-20 | High-tightness carrier roller with adjustable pre-tightening force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259861.7U CN203903362U (en) | 2014-05-20 | 2014-05-20 | High-tightness carrier roller with adjustable pre-tightening force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203903362U true CN203903362U (en) | 2014-10-29 |
Family
ID=51777650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420259861.7U Expired - Fee Related CN203903362U (en) | 2014-05-20 | 2014-05-20 | High-tightness carrier roller with adjustable pre-tightening force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203903362U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017001110A (en) * | 2015-06-05 | 2017-01-05 | ライフロボティクス株式会社 | Robot arm mechanism |
| CN112249638A (en) * | 2020-10-13 | 2021-01-22 | 安徽德基汇金机械科技有限公司 | Automatic carding belt conveyor roller and processing technology thereof |
-
2014
- 2014-05-20 CN CN201420259861.7U patent/CN203903362U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017001110A (en) * | 2015-06-05 | 2017-01-05 | ライフロボティクス株式会社 | Robot arm mechanism |
| CN112249638A (en) * | 2020-10-13 | 2021-01-22 | 安徽德基汇金机械科技有限公司 | Automatic carding belt conveyor roller and processing technology thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20160520 |