CN102374231A - Combined bearing suitable for corrosive medium - Google Patents
Combined bearing suitable for corrosive medium Download PDFInfo
- Publication number
- CN102374231A CN102374231A CN2010102627692A CN201010262769A CN102374231A CN 102374231 A CN102374231 A CN 102374231A CN 2010102627692 A CN2010102627692 A CN 2010102627692A CN 201010262769 A CN201010262769 A CN 201010262769A CN 102374231 A CN102374231 A CN 102374231A
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- Prior art keywords
- bearing
- combined
- ball
- roller
- aggressive medium
- Prior art date
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- 239000000463 material Substances 0.000 claims description 16
- 230000007797 corrosion Effects 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 8
- 229910000593 SAF 2205 Inorganic materials 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 12
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 8
- 239000000919 ceramic Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000004939 coking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a combined bearing suitable for a corrosive medium, which is characterized by comprising a bearing body, a ball bearing and a roller bearing. The roller bearing is arranged on the upper part of the combined bearing, the ball bearing is arranged on the lower part of the combined bearing, and the roller bearing is arranged on the ball bearing in the bearing body. The invention has the advantages that the combined bearing is suitable for working environments with high mixing power, the service life of the bearing can be prolonged, and the combined bearing can adapt to a variety of corrosive environments.
Description
[technical field]
The present invention relates to technical field of bearings, specifically, is a kind of combined bearing that is suitable in the aggressive medium.
[background technique]
Traditional mixing plant, the bearing of stirring shaft have two kinds of mounting types, a kind of outside that is installed in groove or still; Another kind is installed in the inside of groove or still.It is outside to be installed in groove or still, and bearing adopts conventional bearing, but stirring shaft will stretch out groove or still is outside, and axle will increase length like this, will increase the sealing of axle in addition, can cause the leakage of medium; And be installed in the inside of groove or still, than higher, the lubrication problem of bearing also will be considered the etching problem of medium to bearing on the other hand on the one hand to the requirement of bearing.If groove or still height are higher, or medium temperature is higher in groove or the still, then also will consider the power of stirring shaft to the bigger vertical and substantially horizontal of bearing generation.Present existing still inner bearing all exists or holds corrosivity that can't stand that medium is bigger, or holds and can't stand that stirring shaft produces the problem of bigger power to bearing.
[summary of the invention]
The objective of the invention is to overcome the deficiency of existing technology, a kind of combined bearing that is suitable in the aggressive medium is provided.
The objective of the invention is to realize through following technological scheme:
A kind of combined bearing that is suitable in the aggressive medium; Form by bearing support, ball bearing, roller bearing; Roller bearing is positioned at the top of combined bearing, and ball bearing is positioned at the bottom of combined bearing, and roller bearing is built on the ball bearing at bearing support;
Described roller bearing is positioned at combined bearing top, is made up of up and down supporting frame, strut and roller, is mainly used in and bears substantially horizontal load; Wherein roller is processed by the HC276 material, and all the other metal partss are by the SAF2205 two phase stainless steel material manufacture corrosion-resistant, that wear-resisting property is good; Roller bearing is built on the ball bearing at bearing support; And along with ball bearing rotates in the bearing support inter-sync, during work, each bearing roller also can have rotation in various degree around strut; Thereby when effective supporting being provided for stirring shaft, the power of as far as possible reducing friction and uneven wear.
Described ball bearing is positioned at the combined bearing bottom, is mainly used in to bear thrust load, and the Axial Loads that produces between axle and the roller bearing is on this bearing; Ball bearing is made up of last thrusting plate, following thrusting plate, ball and retainer four parts; All be shaped on raceway in upper and lower thrusting plate inboard, when last thrusting plate bears thrust load when rotating together with the axis, ball promptly rolls on the raceway of upper and lower thrusting plate, and they are separated by retainer, avoid the phase mutual friction; Upper and lower thrusting plate of bearing and retainer adopt the manufacturing of SAF2205 stainless steel material, and wherein the thrusting plate raceway adopts the hard rolling treatment process up and down, and hardness can reach HRC38～42; Ball adopts the ZrO of intensity height, corrosion resistance and good
2Material is processed, because zirconia ceramics has high tenacity, high-flexural strength, high wear resistance and excellent heat-shielding performance, its thermal expansion coefficient approaches advantages such as steel, is very suitable for making bearing ball.
Be provided with two-way intake chute in the described bearing support, can make flowing liquid person who lives in exile in the stirred tank, for bearing provides lubricated and frictional heat is in time removed.
Compared with prior art, good effect of the present invention is:
(1), bearing of the present invention is a combined bearing; Adopt ball and roller bearing (ball and roller bearing) fabricated structure; Axle that bearing will turn round and the sliding friction between the bearing support become rolling friction; Thereby reduce friction loss, be suitable for the bigger working environment of power of agitator;
(2), roller bearing of the present invention is built on the ball bearing at bearing support; Along with ball bearing rotates in the bearing support inter-sync; During work, each bearing roller also can have rotation in various degree around strut, thereby when for stirring shaft effective supporting being provided; The power of as far as possible reducing friction and uneven wear prolong bearing working life;
(3), the material of the main contact medium of the present invention, select the material of being able to bear strong corrosion for use, like HC276, SAF2205 stainless steel, ZrO
2Deng, make this bearing can be adapted to various corrosive environments;
(4), the ball of thrust ball bearing of the present invention adopts the ZrO of intensity height, corrosion resistance and good
2(zirconia ceramics) material is processed, because zirconia ceramics has high tenacity, high-flexural strength, high wear resistance and excellent heat-shielding performance, its thermal expansion coefficient approaches advantages such as steel, is very suitable for making bearing ball;
(5), bearing support external form of the present invention is sphere, can overcome longer stirring shaft a small amount of when crooked to bearing produce big extra stressed; Inside is provided with oil groove, is convenient to the lubricated of bearing.
[description of drawings]
Fig. 1 structural representation of the present invention;
Label in the accompanying drawing is respectively: 1, bearing support, 2, ball bearing, 3, roller bearing.
[embodiment]
The present invention below is provided a kind of embodiment that is suitable for the combined bearing in the aggressive medium.
See also accompanying drawing 1; A kind of combined bearing that is suitable in the aggressive medium; Form by bearing support 1, ball bearing 2, roller bearing 3; Roller bearing 3 is positioned at the top of combined bearing, and ball bearing 2 is positioned at the bottom of combined bearing, and roller bearing 3 is built on the ball bearing 2 at bearing support 1;
Described roller bearing is positioned at combined bearing top, is made up of up and down supporting frame, strut and roller, is mainly used in and bears substantially horizontal load; Wherein roller is processed by the HC276 material, and all the other metal partss are by the SAF2205 two phase stainless steel material manufacture corrosion-resistant, that wear-resisting property is good; Roller bearing is built on the ball bearing at bearing support; And along with ball bearing rotates in the bearing support inter-sync, during work, each bearing roller also can have rotation in various degree around strut; Thereby when effective supporting being provided for stirring shaft, the power of as far as possible reducing friction and uneven wear.
Described ball bearing is positioned at the combined bearing bottom, is mainly used in to bear thrust load, and the Axial Loads that produces between axle and the roller bearing is on this bearing; Ball bearing is made up of last thrusting plate, following thrusting plate, ball and retainer four parts; All be shaped on raceway in upper and lower thrusting plate inboard, when last thrusting plate bears thrust load when rotating together with the axis, ball promptly rolls on the raceway of upper and lower thrusting plate, and they are separated by retainer, avoid the phase mutual friction; Upper and lower thrusting plate of bearing and retainer adopt the manufacturing of SAF2205 stainless steel material, and wherein the thrusting plate raceway adopts the hard rolling treatment process up and down, and hardness can reach HRC38～42; Ball adopts the ZrO of intensity height, corrosion resistance and good
2Material is processed, because zirconia ceramics has high tenacity, high-flexural strength, high wear resistance and excellent heat-shielding performance, its thermal expansion coefficient approaches advantages such as steel, is very suitable for making bearing ball.
Be provided with two-way intake chute in the described bearing support, can make flowing liquid person who lives in exile in the stirred tank, for bearing provides lubricated and frictional heat is in time removed.
The characteristic research of the present invention through for a long time stirring shaft being moved; Recognize that frictional force is bigger between stirring shaft and the bearing, and when operation Vertical direction and horizontal direction force also bigger, in order effectively to address these problems; We have designed this combined bearing; The relative position of two kinds of bearings of reasonable Arrangement can reduce frictional force between stirring shaft and the bearing, can bear the stressed of Vertical direction and substantially horizontal again.
Structure reasonable in design of the present invention is effectively combined thrust ball bearing, roller bearing.The bearing support external form of design is a sphere, can overcome longer stirring shaft when a small amount of crooked to bearing produce big extra stressed; Inside is provided with oil groove, is convenient to the lubricated of bearing.
The present invention is to the part of different parts, and he contact with medium when using, and what, stressing conditions, temperature conditions etc. are selected rational material, guarantee overall corrosion resistance can, the prolongation whole service life, it is very high that the while also is unlikely to cost.
The present invention can be applied on the equipment such as the stirrer, reactor of industries such as petrochemical industry, coking, medicine, has good popularization and application prospect.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the present invention's design; Can also make some improvement and retouching, these improvement and retouching also should be regarded as in protection scope of the present invention.
Claims (8)
1. combined bearing that is suitable in the aggressive medium; It is characterized in that be made up of bearing support, ball bearing, roller bearing, roller bearing is positioned at the top of combined bearing; Ball bearing is positioned at the bottom of combined bearing, and roller bearing is built on the ball bearing at bearing support.
2. a kind of combined bearing that is suitable in the aggressive medium as claimed in claim 1 is characterized in that described roller bearing is positioned at combined bearing top, by supporting frame, strut and roller are formed up and down.
3. a kind of combined bearing that is suitable in the aggressive medium as claimed in claim 2 is characterized in that described roller is processed by the HC276 material, and all the other metal partss are by the SAF2205 two phase stainless steel material manufacture corrosion-resistant, that wear-resisting property is good.
4. a kind of combined bearing that is suitable in the aggressive medium as claimed in claim 1 is characterized in that described ball bearing is positioned at the combined bearing bottom, and ball bearing is made up of last thrusting plate, following thrusting plate, ball and retainer four parts.
5. a kind of combined bearing that is suitable in the aggressive medium as claimed in claim 4 is characterized in that, all is shaped on raceway in described upper and lower thrusting plate inboard.
6. a kind of combined bearing that is suitable in the aggressive medium as claimed in claim 4; It is characterized in that; Upper and lower thrusting plate of described bearing and retainer adopt the manufacturing of SAF2205 stainless steel material, and wherein the thrusting plate raceway adopts the hard rolling treatment process up and down, and hardness reaches HRC38～42; Ball adopts ZrO
2Material is processed.
7. a kind of combined bearing that is suitable in the aggressive medium as claimed in claim 1 is characterized in that, is provided with two-way intake chute in the described bearing support.
8. a kind of combined bearing that is suitable in the aggressive medium as claimed in claim 1 is characterized in that described bearing support external form is a sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102627692A CN102374231A (en) | 2010-08-24 | 2010-08-24 | Combined bearing suitable for corrosive medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102627692A CN102374231A (en) | 2010-08-24 | 2010-08-24 | Combined bearing suitable for corrosive medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102374231A true CN102374231A (en) | 2012-03-14 |
Family
ID=45793291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102627692A Pending CN102374231A (en) | 2010-08-24 | 2010-08-24 | Combined bearing suitable for corrosive medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102374231A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030044096A1 (en) * | 2001-08-31 | 2003-03-06 | Minebea Kabushiki-Kaisha | Pivot bearing for the swing arm of the hard disk drive device |
| JP2004076755A (en) * | 2002-08-09 | 2004-03-11 | Koyo Seiko Co Ltd | Ball screw device |
| CN1548783A (en) * | 2003-05-21 | 2004-11-24 | 上海市轴承技术研究所 | Self-lubricating angle contact ball bearing |
| EP1978267A2 (en) * | 2007-04-05 | 2008-10-08 | Rolls-Royce Deutschland Ltd & Co KG | Multi-row axial ball bearing arrangement with asymmetrical load distribution |
| CN201166112Y (en) * | 2007-09-20 | 2008-12-17 | 施培兴 | Corrosion resistance floating composite mechanical sealing device for reactor |
| CN201314333Y (en) * | 2008-12-18 | 2009-09-23 | 洛阳鸿元轴承科技有限公司 | Combination bearing of cylindrical roller and double-direction thrust roller |
| CN101769331A (en) * | 2008-12-26 | 2010-07-07 | 瓦房店鹏东轴承制造有限公司 | Combined bearing |
-
2010
- 2010-08-24 CN CN2010102627692A patent/CN102374231A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030044096A1 (en) * | 2001-08-31 | 2003-03-06 | Minebea Kabushiki-Kaisha | Pivot bearing for the swing arm of the hard disk drive device |
| JP2004076755A (en) * | 2002-08-09 | 2004-03-11 | Koyo Seiko Co Ltd | Ball screw device |
| CN1548783A (en) * | 2003-05-21 | 2004-11-24 | 上海市轴承技术研究所 | Self-lubricating angle contact ball bearing |
| EP1978267A2 (en) * | 2007-04-05 | 2008-10-08 | Rolls-Royce Deutschland Ltd & Co KG | Multi-row axial ball bearing arrangement with asymmetrical load distribution |
| CN201166112Y (en) * | 2007-09-20 | 2008-12-17 | 施培兴 | Corrosion resistance floating composite mechanical sealing device for reactor |
| CN201314333Y (en) * | 2008-12-18 | 2009-09-23 | 洛阳鸿元轴承科技有限公司 | Combination bearing of cylindrical roller and double-direction thrust roller |
| CN101769331A (en) * | 2008-12-26 | 2010-07-07 | 瓦房店鹏东轴承制造有限公司 | Combined bearing |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120314 |