CN201425416Y - Squeezing roll with bearing sealing device - Google Patents
Squeezing roll with bearing sealing device Download PDFInfo
- Publication number
- CN201425416Y CN201425416Y CN2009200728263U CN200920072826U CN201425416Y CN 201425416 Y CN201425416 Y CN 201425416Y CN 2009200728263 U CN2009200728263 U CN 2009200728263U CN 200920072826 U CN200920072826 U CN 200920072826U CN 201425416 Y CN201425416 Y CN 201425416Y
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- bearing
- roller
- end cap
- squeeze roll
- outer ring
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Abstract
A squeezing roll with a bearing sealing device comprises a fixed bearing and a roller. The fixed bearing is divided into a bearing outer ring and a bearing inner ring; the bearing outer ring is connected with the roller; the bearing inner ring is sleeved on a core shaft; one end of the core shaft is inserted in the roller; and an end cover is sleeved at the other end of the core shaft, screwed into a bolt through a bolt connecting hole on the end cover, and connected with the bearing outer ring in a screwing manner. An annular first shaft seal and a second shaft seal are arranged between the end cover and the bearing inner ring; and a gap is reserved between the first shaft seal and the second shaft seal. An air inlet is formed on the end surface of the core shaft and passes to the gap between the first shaft seal and the second shaft seal; an air inlet interface is connected with a compressed air hose; and a pressure reducing valve is arranged on the pipeline of the compressed air hose. The pressure of the pressure reducing valve is slightly larger than atmospheric pressure, so that the atmospheric pressure between the first shaft seal and the second shaft seal is slightly higherthan the pressure of common air, thereby effectively preventing acid mist on the periphery of the roller from entering the bearing and preventing shutdown accidents.
Description
Technical field
The utility model relates to the mechanical bearing field of sealing technology, relates in particular to a kind of squeeze roll/pressure roller field that is applied to the tape spool bearing sealing device in the cold rolling continuous electroplating unit coating bath.
Background technology
Cold rolling electroplating zinc unit is widely used in the Ferrous Metallurgy production industry at present, this equipment is substantially by external import, electroplating bath in this equipment adopts vertical gravitational method electroplating technology, and each trough is equipped with 1 conductive rollers, 1 sinking roller, 4 anode boxs and 4 squeeze rolls.
Wherein the electrogalvanizing liquid in the electroplating bath is solution of zinc sulfate, and acidity is very strong, and pH value is between 1～2, and temperature is about 60 ℃.When the unit electrogalvanizing is produced, be full of solution between the anode box of band steel both sides in the coating bath, the coating bath zone forms a large amount of acid mist (be acid, strong corrosivity is arranged), and coating bath equipment is subjected to the influence of acid mist, and corrosion and damage causes disorderly closedown easily.
And the concrete origin cause of formation of this kind fault is the fault of construction of itself, and the coating bath squeeze roll of import at present is the hollow core shaft structure, and as shown in Figure 1, this bearing is built-in, and is installed in the roller, and mandrel maintains static.Squeeze roll is installed in the coating bath, and the coating bath zone forms a large amount of acid mists when electroplating, and acid mist enters the bearing place of squeeze roll both sides easily.Because of acid mist has strong corrosivity, the grease of lubricating bearings is subjected to acid mist to influence the quick deterioration of meeting, thereby makes bearing because of the insufficient lubrication scaling loss lost efficacy, and causes the unit disorderly closedown.
After cold rolling continuous electroplating unit used 1 month, electrogalvanizing coating bath squeeze roll was very easy to take place to enter the machine halt trouble that the bearing place causes bearing failure because of acid mist, and the probability that fault takes place significantly increases.In order to solve this fault, the measure of adopting is that every month is with machine bearing cleaning under all squeeze rolls at present, and refuel again, this makes the maintenance workload of equipment and maintenance cost all very big, also influenced the production efficiency of unit, also can't fundamentally stop similar fault simultaneously, restrict the ordinary production of whole unit and even whole production line.
Though when under prior art, designing the squeeze roll associated sealing arrangement for bearings, the working environment of also having considered squeeze roll belongs to acid mist heavy corrosion environment, the also once modern double sealing structure that adopted is filled grease between 2 sealing rings, prevent that acid mist from entering bearing between mandrel and axle envelope.But practical effect is bad, though grease has lubrication, but itself does not belong to sealing mechanism, and this grease lubrication need leave greased slipway when it designs, complex structure, this structure is difficult to effectively to stop entering of acid mist, is very easy to take place the squeeze roll bearing burnt fault that acid mist causes, the ordinary production of unit is caused very big influence.
Publication number CN2932265, open day on 08 08th, 2007 Chinese patent, a kind of PROCESS FOR TREATMENT groove squeeze roll sealing device, comprise hermatic door, it is characterized in that: hermatic door is positioned at the cell body inboard, hermatic door top is equipped with lug and is suspended on the cell body inboard, and hermatic door is made up of left and right sides single door, hermatic door middle part have up and down two with extract the circular hole that roll shaft matches.Hermatic door is welded into an integral body by the parallel door of two fans, is fixed by shop bolt between two hermatic doors.Between cell body inboard and hermatic door link plate is housed, the link plate upper end is fixed with the h type groove that adapts with the groove edge, and link plate fixedly is articulated on the cell body, and the h type groove upside of link plate upper end bears hermatic door as supporting skid rail.
The PROCESS FOR TREATMENT groove squeeze roll sealing device of this patent is provided with the two seals door and cooperates with bearing on the squeeze roll and form sealing in the acid storage inboard, the end cap of squeeze roll bearing itself is not changed, and compares difference fully on the structure with the utility model.
Now need a kind of acid mist that can prevent better to enter the squeeze roll of the tape spool bearing sealing device at bearing place.Can effectively improve the service life of squeeze roll bearing, reduce the machine halt trouble of unit, reduce the maintenance workload and the maintenance cost of squeeze roll bearing, promote the steady production of unit.
The utility model content
Form a large amount of acid mists in order to solve when electroplate in above-mentioned coating bath zone, acid mist enters the bearing place of squeeze roll both sides easily.The corrosivity acid mist causes the quick deterioration of the grease of lubricating bearings; make bearing lose efficacy because of the insufficient lubrication scaling loss; cause the problem of unit disorderly closedown; the utility model provides a kind of squeeze roll of tape spool bearing sealing device; design has the twin shaft seal structure; and between 2 axle envelopes, feed a little more than atmospheric air by the air admission hole on the end cap, thereby acid mist enters the bearing place around effectively stoping roller, and its concrete structure is as described below:
A kind of squeeze roll of tape spool bearing sealing device comprises rigid bearing and roller, it is characterized in that:
Described rigid bearing is divided into bearing outer ring and bearing inner race, bearing outer ring is connected on the roller, bearing inner race is sleeved on the mandrel, mandrel one end inserts in the roller, the other end at mandrel is with an end cap, this end cap screws in bolt by 3 to 6 bolt connecting holes of the setting on end cap and the bearing outer ring again, screws with bearing outer ring to be connected.
When squeeze roll roller unitary rotation, end cap connection bearing outer ring, bearing outer ring connects roller again, makes rotation therewith, and mandrel keeps not changeing.
Squeeze roll according to a kind of tape spool bearing sealing device of the present utility model is characterized in that, is sequentially set with an axle envelope and No. two axle envelopes of annular between described end cap and the bearing inner race from outside to inside, leaves the space between an axle envelope and No. two axle envelopes.
Squeeze roll according to a kind of tape spool bearing sealing device of the present utility model, it is characterized in that, described mandrel has air admission hole on it is with the mandrel end face of end caps, this air admission hole leads to the gap between axle envelope and No. two axles envelopes, intake interface on the mandrel end face connects a compressed-air hose, and the pipeline of this compressed-air hose is provided with a pressure-reducing valve.
This pressure-reducing valve pressure is set at and is slightly larger than atmospheric pressure, make atmospheric pressure between axle envelope and No. two axles envelopes a little more than the air pressure of normal air, thereby acid mist enters the bearing place around effectively stoping roller.
Squeeze roll according to a kind of tape spool bearing sealing device of the present utility model is characterized in that, described end cap inside is provided with a bearing tank filler sleeve, and this bearing tank filler sleeve communicates with bolt connecting hole, and seals with a drier oil mouth.
The effect of this bearing tank filler sleeve is can additionally replenish grease when needed, gets final product with drier oil mouth sealing when not working.
Squeeze roll according to a kind of tape spool bearing sealing device of the present utility model is characterized in that, is provided with the O RunddichtringO between described end cap and the bearing outer ring.
The O type has enclosed sealing effectiveness, and the contact-making surface of end cap and roller scribbles flat sealant, further guarantees the sealing effectiveness between end cap and roller.
Use the utility model to obtain following beneficial effect
1. use the squeeze roll of tape spool bearing sealing device of the present utility model can prevent that acid mist from entering the roller bearing place, can effectively improve the service life of squeeze roll bearing;
2. use the squeeze roll of tape spool bearing sealing device of the present utility model to reduce the machine halt trouble that causes owing to the squeeze roll damage of bearings, reduced the maintenance workload and the maintenance cost of squeeze roll bearing, promoted the steady production of unit;
3. the squeeze roll of tape spool bearing sealing device of the present utility model is simple in structure, it is convenient to implement, to the work of squeeze roll without any harmful effect.
Description of drawings
Fig. 1 is the concrete structure schematic diagram of the coating bath squeeze roll under the prior art;
Fig. 2 is the concrete structure schematic diagram of the squeeze roll of tape spool bearing sealing device of the present utility model.
Among the figure: 1-roller, 2-bearing outer ring, 3-bearing inner race, 4-mandrel, 5-end cap, 6-bolt connecting hole, the 7-bolt, axle envelope of 8-, No. two axle envelopes of 9-, 10-air admission hole, 11-intake interface, the 12-compressed-air hose, 13-pressure-reducing valve, 14-bearing tank filler sleeve, 15-drier oil mouth, 16-O RunddichtringO.
The specific embodiment
Below in conjunction with drawings and Examples the squeeze roll of tape spool bearing sealing device of the present utility model is done further and to be illustrated
Embodiment
As shown in Figure 2, earlier bearing outer ring 2 is connected on the roller 1 during installation, bearing inner race 3 is sleeved on the mandrel 4, mandrel one end inserts in the roller, the other end at mandrel is with an end cap 5, then is contained in 8 and No. two axles envelopes 9 of an axle envelope between end cap and the bearing inner race and leaves certain space, then end cap is withstood bearing outer ring, O RunddichtringO 16 is housed between end cap and the bearing outer ring, and the O type has enclosed sealing effectiveness.This end cap screws in a bolt 7 by the bolt connecting hole on the end cap 6 more at last, screws with bearing outer ring to be connected, and the contact-making surface at end cap and roller is coated with flat sealant simultaneously, further guarantees the sealing effectiveness between end cap and roller.
When squeeze roll roller unitary rotation, end cap connection bearing outer ring, bearing outer ring connects roller again, makes rotation therewith, and mandrel keeps not changeing.
Principal character of the present utility model is, open the air admission hole 10 of φ 5mm at the mandrel end face, lead to the gap between 8 and No. two axle envelopes 9 of an axle envelope, intake interface 11 sizes of mandrel end face are about R1/8 ", be connected with compressed-air hose 12; compressed air line is provided with pressure-reducing valve 13; pressure-reducing valve pressure is set at is slightly larger than atmospheric pressure, about 1kg/cm2, when debugging; regulate pressure-reducing valve, make the slightly gas outflow of squeeze roll mandrel axle envelope place.
The utility model is provided with a bearing tank filler sleeve 14 in end cap inside in addition, and this bearing tank filler sleeve communicates with bolt connecting hole 6, and seals with a drier oil mouth 15.The effect of this bearing tank filler sleeve is can additionally replenish grease when needed, gets final product with drier oil mouth sealing when not working.
The utility model patent can be applied to being operated on the roller under the soda acid mist environment in the unit fields such as electrogalvanizing; can effectively improve the sealability of bearing; prevent that better the soda acid mist from entering the bearing place; avoid the bad damage that causes of bearing lubrication; reduce because the machine halt trouble that the squeeze roll damage of bearings causes; reduce the maintenance workload and the maintenance cost of squeeze roll bearing, promoted carrying out in order of set steady production.
Claims (5)
1. the squeeze roll of a tape spool bearing sealing device comprises rigid bearing and roller (1), it is characterized in that:
Described rigid bearing is divided into bearing outer ring (2) and bearing inner race (3), bearing outer ring is connected on the roller (1), bearing inner race is sleeved on the mandrel (4), mandrel one end inserts in the roller, the other end at mandrel is with an end cap (5), this end cap screws in bolt (7) by 3 to 6 bolt connecting holes (6) of the setting on end cap and the bearing outer ring again, screws with bearing outer ring to be connected.
2. the squeeze roll of a kind of tape spool bearing sealing device as claimed in claim 1, it is characterized in that, be sequentially set with an axle envelope (8) and No. two axle envelopes (9) of annular between described end cap (5) and the bearing inner race (3) from outside to inside, leave the space between an axle envelope and No. two axle envelopes.
3. the squeeze roll of a kind of tape spool bearing sealing device as claimed in claim 1, it is characterized in that, described mandrel (4) is with on the mandrel end face that end cap (5) locates at it and has air admission hole (10), this air admission hole leads to the gap between an axle envelope (8) and No. two axle envelopes (9), intake interface on the mandrel end face (11) connects a compressed-air hose (12), and the pipeline of this compressed-air hose is provided with a pressure-reducing valve (13).
4. the squeeze roll of a kind of tape spool bearing sealing device as claimed in claim 1 is characterized in that, described end cap (5) inside is provided with a bearing tank filler sleeve (14), and this bearing tank filler sleeve communicates with bolt connecting hole (6), and seals with a drier oil mouth (15).
5. the squeeze roll of a kind of tape spool bearing sealing device as claimed in claim 1 is characterized in that, is provided with O RunddichtringO (16) between described end cap (5) and the bearing outer ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200728263U CN201425416Y (en) | 2009-05-22 | 2009-05-22 | Squeezing roll with bearing sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200728263U CN201425416Y (en) | 2009-05-22 | 2009-05-22 | Squeezing roll with bearing sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201425416Y true CN201425416Y (en) | 2010-03-17 |
Family
ID=42024868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200728263U Expired - Fee Related CN201425416Y (en) | 2009-05-22 | 2009-05-22 | Squeezing roll with bearing sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201425416Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288019A (en) * | 2011-06-24 | 2011-12-21 | 张家港青尼罗河曼迪科机械有限公司 | Compressing device for bearing blocks at both ends of lower drying roller in metal sheet scrubbing equipment |
| CN103591289A (en) * | 2013-11-28 | 2014-02-19 | 铜陵浩荣电子科技有限公司 | Waterproof device of hollow rubber covered roll |
| CN104525586A (en) * | 2014-11-11 | 2015-04-22 | 中冶陕压重工设备有限公司 | Wringing roller |
| CN105546122A (en) * | 2015-12-18 | 2016-05-04 | 武汉钢铁(集团)公司 | Lubrication protecting device for working roll bearing at cleaning section |
| CN107269680A (en) * | 2017-06-26 | 2017-10-20 | 宝利泰橡胶科技扬州有限公司 | A kind of bending rubber for hot and humid corrosive atmosphere |
| CN108326080A (en) * | 2018-04-20 | 2018-07-27 | 襄阳振本传动设备有限公司 | A kind of aligning roller assembly |
| CN110479778A (en) * | 2019-07-09 | 2019-11-22 | 马鞍山市天鑫辊业有限责任公司 | Wear-resisting squeeze roller |
| CN114499012A (en) * | 2021-12-30 | 2022-05-13 | 西安中车永电捷力风能有限公司 | Insulating end cover structure suitable for offshore wind driven generator |
-
2009
- 2009-05-22 CN CN2009200728263U patent/CN201425416Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288019A (en) * | 2011-06-24 | 2011-12-21 | 张家港青尼罗河曼迪科机械有限公司 | Compressing device for bearing blocks at both ends of lower drying roller in metal sheet scrubbing equipment |
| CN103591289A (en) * | 2013-11-28 | 2014-02-19 | 铜陵浩荣电子科技有限公司 | Waterproof device of hollow rubber covered roll |
| CN104525586A (en) * | 2014-11-11 | 2015-04-22 | 中冶陕压重工设备有限公司 | Wringing roller |
| CN105546122A (en) * | 2015-12-18 | 2016-05-04 | 武汉钢铁(集团)公司 | Lubrication protecting device for working roll bearing at cleaning section |
| CN107269680A (en) * | 2017-06-26 | 2017-10-20 | 宝利泰橡胶科技扬州有限公司 | A kind of bending rubber for hot and humid corrosive atmosphere |
| CN108326080A (en) * | 2018-04-20 | 2018-07-27 | 襄阳振本传动设备有限公司 | A kind of aligning roller assembly |
| CN110479778A (en) * | 2019-07-09 | 2019-11-22 | 马鞍山市天鑫辊业有限责任公司 | Wear-resisting squeeze roller |
| CN114499012A (en) * | 2021-12-30 | 2022-05-13 | 西安中车永电捷力风能有限公司 | Insulating end cover structure suitable for offshore wind driven generator |
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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: 20100317 Termination date: 20160522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |