CN111721108A - Novel roller assembly for high-load long-period stable-operation drying cylinder - Google Patents
Novel roller assembly for high-load long-period stable-operation drying cylinder Download PDFInfo
- Publication number
- CN111721108A CN111721108A CN202010606967.XA CN202010606967A CN111721108A CN 111721108 A CN111721108 A CN 111721108A CN 202010606967 A CN202010606967 A CN 202010606967A CN 111721108 A CN111721108 A CN 111721108A
- Authority
- CN
- China
- Prior art keywords
- bearing
- carrier roller
- drying cylinder
- cover
- roller shaft
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/16—Chambers, containers, receptacles of simple construction mainly closed, e.g. drum
Abstract
The invention discloses a novel roller assembly of a drying cylinder, which is high in load and long in period stable operation, and relates to the technical field of roller assembly. The novel roller assembly for the drying barrel with the high load and the long-period stable operation comprises a roller, wherein square steel and a pin are arranged on the roller, and the roller comprises a roller shaft. This novel drying cylinder bearing roller assembly of long period steady operation of high load, adopt and forge 42CrMo4, axle 40CrNi2MoA forges, because drying cylinder is very big to bearing roller shaft impact vibration in operation, the axial of bearing roller shaft scurries power very greatly, seriously influence bearing and roller shaft life-span, optimize the step axle structure, prevent axial drunkenness promptly, protect the bearing, the comprehensive strength of roller shaft has been improved again and has been prevented the fracture, the installation of being convenient for simultaneously again, dismantle, choose for use new series of bearings, dynamic rated load increases, static rated load increases, it moves, it improves about 30% to rest attitude bearing capacity, two bearing bases utilize square steel to weld as an organic wholely, carry out rough machining and finish machining after annealing, so that when the field erection of facilitating, the adjustment contacts with the wheel band.
Description
Technical Field
The invention relates to the technical field of carrier roller assembly, in particular to novel carrier roller assembly of a drying cylinder, which runs stably under high load for a long period.
Background
A drying cylinder of an iron-making plant is one of important raw material systems of a grate rotary kiln production line, and the drying cylinder dries concentrate with the water content of less than 11.0 percent of the feed water and ensures that the water content of the discharge water is 6.8 to 7.8 percent. The guarantee of moisture after drying can guarantee 1, the wet mill makes the supplies fully mix and refine, increase the superficial area of the material granule, reduce the addition of bentonite effectively; 2. the stability of water content of pelletizing is ensured, the water adding amount is avoided being manually controlled, the fluctuation of green pellet strength and particle size is avoided, and the green pellet quality fluctuation is avoided. The stable operation of the drying cylinder is one of the important conditions for ensuring the quality of green balls.
In the prior art, the annual design production of a chain grate rotary kiln production line of an iron plant is 220 ten thousand tons/year, the cylinder deformation causes the cylinder cylindricity and the coaxiality of a drying cylinder to be irregular, the contact area of a belt and a carrier roller is too small (about 50 percent and normally about 70 percent), the contact position is not uniform, and the operation is unstable, so that the impact and the vibration to the carrier roller device are increased, the axial and radial working loads of the carrier roller shaft and a bearing are increased, the damage to parts is caused, the service life is shortened, and particularly the bearing is prolonged. Bringing great influence to production and maintenance.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a novel drying cylinder carrier roller assembly with high load and long period stable operation, and solves the problems that in the prior art, the annual design product of a chain grate rotary kiln production line of an iron plant is 220 ten thousand tons/year, the cylindricity and the coaxiality of a drying cylinder barrel are not standard due to barrel deformation, the contact area of a wheel belt and a carrier roller is too small (about 50 percent and about 70 percent normally), the contact position is not uniform, and the operation is unstable, so that the impact and the vibration on the carrier roller device are increased, the axial and radial working loads of the carrier roller shaft and a bearing are increased, the parts are damaged, and the service life is shortened, especially the bearing. Bringing about great influence to production and maintenance.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a novel drying cylinder carrier roller assembly with high load and long period stable operation comprises a carrier roller, wherein square steel and a pin are arranged on the carrier roller, the carrier roller comprises a carrier roller shaft, shaft end pressing covers, gaskets and bolts A are arranged on two sides of the carrier roller shaft, bearings are sleeved on two sides of the carrier roller shaft, the bearings are wide series bearings, a bearing cover A is arranged on the bearing relatively positioned on the left side through a bolt, a bearing cover B is arranged on the bearing relatively positioned on the right side through a bolt, oil cups are arranged on the bearing cover A and the bearing cover B, an end cover A is fixed on the left side of the bearing cover A through a bolt B and a gasket, an end cover B is fixed on the right side of the bearing cover B through a bolt B and a gasket, a screw plug and a gasket are arranged on the end cover A and the end cover B, a bearing seat A is arranged on the bearing relatively positioned on the left side, the bearing seat A and the bearing seat B are welded into a whole by square steel, rough machining and finish machining are carried out after annealing, and the bottoms of the bearing seat A and the bearing seat B are respectively provided with an adjusting gasket group.
Preferably, a framework-free sealing ring and a flinger are arranged between the bearing cover A and the carrier roller shaft and between the bearing cover B and the carrier roller shaft.
Preferably, gaskets are arranged between the bearing cover A and the end cover A and between the bearing cover B and the end cover B.
Preferably, the carrier roller is forged by 42CrMo4 and a shaft 40CrNi2 MoA.
(III) advantageous effects
The invention provides a novel roller assembly of a drying cylinder, which has high load and long-period stable operation. The method has the following beneficial effects: the novel high-load long-period stable-operation drying cylinder carrier roller is assembled by forging 42CrMo4 and 40CrNi2MoA, because the drying cylinder has large impact and vibration on the roller carrier shaft in operation and the axial moving force of the roller carrier shaft is large, the service life of the bearing and the roller shaft is seriously influenced, the step shaft structure is optimized, not only prevents axial movement and protects the bearing, but also improves the comprehensive strength of the roll shaft to prevent breakage, is convenient to install and disassemble, and has the original bearing model 23248, within the reasonable range allowed by the space structure size, a new wide series of bearings are selected, the dynamic rated load is increased, the static rated load is increased, the bearing capacity is improved by about 30% in a stable and standing state, the two bearing seats are welded into a whole by square steel, rough machining and finish machining are carried out after annealing, so that the adjusting carrier roller contacts with the wheel belt when in site installation, and the oil hole is filled in the end cover of the bearing seat, thereby improving the lubrication of the bearing and prolonging the service life of the bearing.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a top view of the structure of the present invention;
fig. 3 is a cross-sectional view of the structure of the present invention.
In the figure: 1-carrying roller; 2-no-framework sealing ring; 3-a flinger; 4-bearing seat A; 5-plug screw; 6-a sealing gasket; 7-end cap A; 8-shaft end gland; 9-a gasket; 10-bolt a; 11-a bearing; 12-bolt B; 13-a gasket; 14-a gasket; 15-bearing cap a; 16-a screw; 17-a carrier roller shaft; 18-oil cup; 19-bearing cap B; 20-end cap B; 21-a plug screw; 22-a gasket; 23-bolt C; 24-a nut; 25-a gasket; 26-bolt D; 27-a gasket; 28-a nut; 29-a nut; 30-bearing seat B; 31-adjusting shim packs; 32-pin; 33-square steel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a novel drying cylinder carrier roller assembly with high load and long period stable operation comprises a carrier roller 1, wherein the carrier roller 1 is forged by 42CrMo4 and a shaft 40CrNi2MoA, square steel 33 and a pin 32 are arranged on the carrier roller 1, the carrier roller 1 comprises a carrier roller shaft 17, shaft end pressing covers 8, a gasket 9 and a bolt A10 are arranged on two sides of the carrier roller shaft 17, bearings 11 are sleeved on two sides of the carrier roller shaft 17, the bearings 11 adopt wide series bearings, a bearing cover A15 is arranged on the bearing 11 on the left side relatively through a bolt 16, gaskets 14 are arranged between the bearing cover A15 and an end cover A7 and between the bearing cover B19 and an end cover B20, frameless sealing rings 2 and oil slingers 15 are arranged between the bearing cover A15 and the carrier roller shaft 17 and between the bearing cover B19 and the carrier roller shaft 17 relatively, a bearing cover B19 is arranged on the bearing 11 on the right side relatively through a bolt 16, oil cups 18 are arranged on the bearing cover A15 and the bearing cover B19, and the left side of the bearing cover A383 are fixedly, end cover B20 is fixed on the right side of bearing cover B19 through bolt B12 and washer 13, all be provided with plug screw 5 and sealed 6 on end cover A7 and the end cover B20, be provided with bearing frame A4 on the bearing 11 that is located the left relatively, be provided with bearing frame B30 on the bearing 11 that is located the right relatively, bearing frame A4 and bearing frame B30 utilize square steel to weld as an organic whole, carry out rough machining and finish machining after the annealing, the bottom of bearing frame A4 and bearing frame B30 all is provided with adjustment gasket group 31.
The beneficial effect and the principle of this novel stoving section of thick bamboo bearing roller assembly of high load long period steady operation are as follows:
(1) new wide series bearings are selected to improve the bearing capacity of the bearing in a movable, standing and standing state by about 30 percent;
(2) the carrier roller is forged by 42CrMo4 and a shaft 40CrNi2MoA, so that the fatigue life is prolonged.
(3) The step shaft structure not only prevents axial movement and protects the bearing, but also improves the comprehensive strength of the roll shaft to prevent breakage and is convenient to mount and dismount;
(4) the two bearing seats are welded into a whole by square steel, and rough machining and finish machining are carried out after annealing so as to adjust the contact between the carrier roller and the wheel belt during field installation;
(5) the roller surface is widened, so that the wheel belt is fully contacted with the roller surface when the drying cylinder runs.
(6) The bearing seat end cover is filled with the oil hole, so that the bearing lubrication is improved, and the service life of the bearing is prolonged.
To sum up, the novel high-load long-period stable-operation drying cylinder carrier roller assembly is formed by forging 42CrMo4 and 40CrNi2MoA, because the drying cylinder has large impact and vibration on a carrier roller shaft in operation, the axial fleeing force of the carrier roller shaft is large, the service lives of a bearing and the carrier roller shaft are seriously influenced, a step shaft structure is optimized, namely, the axial fleeing is prevented, the bearing is protected, the comprehensive strength of the carrier roller shaft is improved to prevent breakage, the installation and the disassembly are convenient, the original bearing model 23248 is selected, a new series of bearings are selected within a reasonable range allowed by the spatial structure size, the dynamic rated load is increased, the static rated load is increased, the dynamic and the standing state bearing capacity of the bearing is improved by about 30 percent, two bearing seats are welded into a whole by square steel, rough machining and fine machining are carried out after annealing, so that the carrier roller is adjusted to be contacted with a wheel belt during field installation, meanwhile, an oil hole is added to an, the service life of the bearing is prolonged.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a novel stoving section of thick bamboo bearing roller assembly of high load long period steady operation, includes bearing roller (1), its characterized in that: the carrier roller is characterized in that square steel (33) and a pin (32) are arranged on the carrier roller (1), the carrier roller (1) comprises a carrier roller shaft (17), shaft end pressing covers (8), gaskets (9) and bolts A (10) are arranged on two sides of the carrier roller shaft (17), bearings (11) are sleeved on two sides of the carrier roller shaft (17), the bearings (11) are wide series bearings, bearing covers A (15) are arranged on the bearings (11) on the left side relatively through screws (16), bearing covers B (19) are arranged on the bearings (11) on the right side relatively through screws (16), oil cups (18) are arranged on the bearing covers A (15) and the bearing covers B (19), an end cover A (7) is fixed on the left side of the bearing cover A (15) through a bolt B (12) and a gasket (13), and an end cover B (20) is fixed on the right side of the bearing cover B (19) through a bolt B (12) and a gasket (13), all be provided with plug screw (5) and sealed pad (6) on end cover A (7) and end cover B (20), be provided with bearing frame A (4) on being located left bearing (11) relatively, be provided with bearing frame B (30) on being located right bearing (11) relatively, bearing frame A (4) and bearing frame B (30) utilize square steel to weld as an organic wholely, carry out rough machining and finish machining after the annealing, the bottom of bearing frame A (4) and bearing frame B (30) all is provided with adjustment shim group (31).
2. The novel drying cylinder carrier roller assembly with high load and long period stable operation according to claim 1, is characterized in that: and a frameless sealing ring (2) and an oil slinger (3) are arranged between the bearing cover A (15) and the carrier roller shaft (17) and between the bearing cover B (19) and the carrier roller shaft (17).
3. The novel drying cylinder carrier roller assembly with high load and long period stable operation according to claim 1, is characterized in that: and gaskets (14) are arranged between the bearing cover A (15) and the end cover A (7) and between the bearing cover B (19) and the end cover B (20).
4. The novel drying cylinder carrier roller assembly with high load and long period stable operation according to claim 1, is characterized in that: the carrier roller (1) is forged by 42CrMo4 and a shaft 40CrNi2 MoA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010606967.XA CN111721108A (en) | 2020-06-29 | 2020-06-29 | Novel roller assembly for high-load long-period stable-operation drying cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010606967.XA CN111721108A (en) | 2020-06-29 | 2020-06-29 | Novel roller assembly for high-load long-period stable-operation drying cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111721108A true CN111721108A (en) | 2020-09-29 |
Family
ID=72570123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010606967.XA Pending CN111721108A (en) | 2020-06-29 | 2020-06-29 | Novel roller assembly for high-load long-period stable-operation drying cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111721108A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191314545A (en) * | 1913-06-24 | 1914-06-24 | Tom Garstang | Improvements in or relating to the Steam-heated Cylinders of Drying Machines. |
| CN201609645U (en) * | 2009-12-23 | 2010-10-20 | 中国有色（沈阳）冶金机械有限公司 | Roller device |
| CN102020101A (en) * | 2010-11-13 | 2011-04-20 | 太原钢铁(集团)有限公司 | Upper carrier roller device for plate type ore conveying machine |
| CN203158672U (en) * | 2013-02-04 | 2013-08-28 | 太原钢铁(集团)有限公司 | Plate feeder |
| CN205204004U (en) * | 2015-10-29 | 2016-05-04 | 山东黄金矿业(鑫汇)有限公司 | Mining belt conveyor bearing roller |
| CN110436138A (en) * | 2018-05-02 | 2019-11-12 | 河南理工大学 | A kind of novel elastic high-speed overload carrier roller |
| CN210312048U (en) * | 2019-08-16 | 2020-04-14 | 山东得利机械设备有限公司 | Adjustable special carrier roller for tubular conveyer belt |
-
2020
- 2020-06-29 CN CN202010606967.XA patent/CN111721108A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191314545A (en) * | 1913-06-24 | 1914-06-24 | Tom Garstang | Improvements in or relating to the Steam-heated Cylinders of Drying Machines. |
| CN201609645U (en) * | 2009-12-23 | 2010-10-20 | 中国有色（沈阳）冶金机械有限公司 | Roller device |
| CN102020101A (en) * | 2010-11-13 | 2011-04-20 | 太原钢铁(集团)有限公司 | Upper carrier roller device for plate type ore conveying machine |
| CN203158672U (en) * | 2013-02-04 | 2013-08-28 | 太原钢铁(集团)有限公司 | Plate feeder |
| CN205204004U (en) * | 2015-10-29 | 2016-05-04 | 山东黄金矿业(鑫汇)有限公司 | Mining belt conveyor bearing roller |
| CN110436138A (en) * | 2018-05-02 | 2019-11-12 | 河南理工大学 | A kind of novel elastic high-speed overload carrier roller |
| CN210312048U (en) * | 2019-08-16 | 2020-04-14 | 山东得利机械设备有限公司 | Adjustable special carrier roller for tubular conveyer belt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111721108A (en) | Novel roller assembly for high-load long-period stable-operation drying cylinder | |
| CN208185218U (en) | A kind of combined retainer type four-line column roller bearing | |
| CN2573118Y (en) | Support idler roller of continuous casting two cooling zones | |
| CN201058782Y (en) | Roller cage shoe | |
| CN100334364C (en) | Integrated rolling bearing for ball grinder | |
| CN217271470U (en) | Anti-drop tapered roller bearing | |
| CN216605380U (en) | Iron-passing protection and discharge opening adjusting device of large multi-cylinder cone crusher | |
| CN202790127U (en) | Sealing structure of bearing | |
| CN201380098Y (en) | Ball roller grinding machine | |
| CN201731743U (en) | Baffle wheel device | |
| CN110873118B (en) | Composite thrust tapered roller turntable bearing | |
| CN101761637A (en) | Split type vertical planet speed reducer | |
| CN208743369U (en) | A kind of Bar Cooling Bed skirtboard tapered roller | |
| CN201858256U (en) | Sliding bearing | |
| CN204658176U (en) | A kind of power spindle assembly justifying grinding machine | |
| CN219045519U (en) | Cement vertical mill bearing with high bearing support type retainer | |
| CN208004499U (en) | A kind of novel rolling mill press down system | |
| CN202366949U (en) | Simple machinery combined energy storage roller | |
| CN216402822U (en) | Heavy-load friction aligning carrier roller | |
| CN220277145U (en) | Raymond mill composite grinding roller | |
| CN2322722Y (en) | Live centre | |
| CN204755864U (en) | Sealed and overspeed device tensioner of sprocket department under lifting machine | |
| CN101876505A (en) | Catch wheel device | |
| CN219984611U (en) | Granulation machine compression roller assembly convenient to dismantle | |
| CN220168373U (en) | Sealed plane thrust bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200929 |
|
| RJ01 | Rejection of invention patent application after publication |