CN102011796A - Self-aligning spherical plain water lubricated tail bearing for ships - Google Patents
Self-aligning spherical plain water lubricated tail bearing for ships Download PDFInfo
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- CN102011796A CN102011796A CN 201010590147 CN201010590147A CN102011796A CN 102011796 A CN102011796 A CN 102011796A CN 201010590147 CN201010590147 CN 201010590147 CN 201010590147 A CN201010590147 A CN 201010590147A CN 102011796 A CN102011796 A CN 102011796A
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Abstract
The invention relates to a self-aligning spherical plain water lubricated tail bearing for ships. The tail bearing is provided with two rubbing pairs, wherein an inner ring (9) and an outer ring (4) are a rubbing pair in spherical contact and are lubricated by grease; the inner ring (9) is provided with linings (7) and is fixedly connected with the linings; the linings (7) and a tail shaft (8) are a rubbing pair and are lubricated by water; and when the tail shaft (8) runs in the linings (7), the inner ring (9) automatically regulates the axis of the bearing along with the shift of the tail shaft (8) to ensure the requirement for coaxiality of the tail shaft (8) and the tail bearing and uniform distribution of pressure on the linings (7). The invention has the function of regulating the coaxiality of the tail bearing and the tail shaft automatically, enables the bearing to endure greater radial force, has simple structure, can avoid edge effect effectively, enables the pressure peak value to descend, and can lead overall distribution of the pressure to tend to be uniform.
Description
Technical field
The present invention relates to field of bearings, particularly relate to a kind of peculiar to vessel from spherical ball face slip water lubrication tail bearing.
Background technique
Marine rear shaft holds and is used to support tailing axle, is the important component part of marine shafting.Traditional tail bearing is a common tubular sliding bearing, during installation and bearing support connect firmly together, after marine shafting is installed, because bad influence in the deadweight of propeller cavitation and the marine shafting school causes tail bearing and tailing axle to produce bigger coaxiality error, cause the local overload of tail bearing, the wearing and tearing aggravation, cause the marine shafting vibration, produce noise, seriously influenced shipping navigation safety, travelling comfort.
Traditional slip water lubrication tail bearing that does not have the self-regulated heart function, its structure be as shown in Figure 3 and Figure 4: mainly be made up of lining 11, liner 7 and liner 10.Liner 7 is adhered in the liner 10, and liner 10 has better elastic and absorbing.Liner 10 is adhered in the lining 11.The working procedure of this water lubrication tail bearing is: referring to Fig. 5, when tailing axle rotated in liner with certain speed, water was entrainmented between two surfaces and is produced moisture film pressure.The weight of tailing axle is by the institute's balance of making a concerted effort of moisture film pressure, and at this moment journal centre's automatic stabilisation is on the position of certain quiescent operation point.When rotating speed rises gradually, entrainment effect and also strengthen gradually, moisture film pressure is " picking-up " tailing axle further.
Summary of the invention
Technical problem to be solved by this invention is: a kind of the peculiar to vessel from spherical ball face slip water lubrication tail bearing of self-alignment ball bearing and water lubriucated bearing that integrate is provided, and this bearing has the coaxality function of automatic adjustment tail bearing and tailing axle.
The present invention solves its technical problem and adopts following technological scheme:
Provided by the inventionly peculiar to vesselly be provided with two pairs of friction pairs from spherical ball face slip water lubrication tail bearing, wherein: inner ring is the friction pair that a pair of sphere contacts with the outer ring, adopts grease lubrication; Inner ring has liner, and they connect firmly together, and this liner and tailing axle are a pair of friction pair, adopts water lubrication; When tailing axle turned round in liner, inner ring guaranteed that with the shaft axis of the skew self-aligning bearing of tailing axle the coaxality requirement of tailing axle and tail bearing and the pressure distribution on the liner are even.
The end face of described outer ring is equipped with oiling mechanism, has oil groove on its inner ball surface.
The slenderness ratio of described liner is 4:1.This liner is nonmetal lath, is embedded in the dovetail groove of inner ring axis hole.
Described liner can adopt the rubber lath.
The present invention compared with prior art has following main advantage:
One. have the coaxality function of automatic adjustment tail bearing and tailing axle: because tailing axle turns round in liner, inner ring is regulated the shaft axis of tail bearing automatically with the skew of tailing axle, so can guarantee the coaxality requirement of tailing axle and tail bearing.
They are two years old. and the slenderness ratio of bearing is designed to 4:1, can makes bearing bear bigger radial force.
They are three years old. and simple in structure, can effectively avoid edge effect, pressure peak is descended, it is even that the overall distribution of pressure is tending towards.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is that the A of liner 7 among Fig. 1 is to view is installed.
Fig. 3 is the structural representation of traditional slip water lubrication tail bearing that does not have the self-regulated heart function.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is traditional slip water lubrication tail bearing schematic representation that does not have the self-regulated heart function.
Fig. 6 has the sphere slip water lubrication tail bearing schematic representation of self-regulated heart function for the present invention.
Fig. 7 has the sphere slip water lubrication tail bearing of self-regulated heart function for the present invention and the work mean pressure of the traditional slip water lubrication tail bearing that does not have the self-regulated heart function is tried hard to.
Among the figure: 1. oiling mechanism; 2. tail pipe; 3. oil groove; 4. outer ring; 5. rubber seal; 6. baffle ring; 7. liner; 8. tailing axle; 9. inner ring; 10 liners; 11. lining.
Embodiment
Further illustrate content of the present invention below in conjunction with embodiment and accompanying drawing, but content of the present invention not only is confined to the following examples.
Provided by the invention peculiar to vessel from spherical ball face slip water lubrication tail bearing (hereinafter to be referred as tail bearing), its structure is provided with two pairs of friction pairs as shown in Figure 1, and is much more a pair of than the sliding bearing of routine, and wherein: inner ring 9 is a pair of with outer ring 4, adopts grease lubrication.Inner ring 9 has liner 7, and liner 7 and tailing axle 8 are a pair of friction pair, adopts water lubrication.
Described outer ring 4 and inner ring 9 are for sphere contacts, and promptly the inner ball surface of outer ring 4 contacts with the outer spherical surface of inner ring 9, and area of contact is bigger, can bear bigger pressure.Have oil groove 3 on the inner ball surface of outer ring 4, be used to store lubricating grease.
Split type structure is adopted in described outer ring 4, so that the installation of inner ring 9.So-called split type structure is: along axial direction, outer ring 4 is split into upper and lower two-part, with bolt it is connected firmly.During installation, the bolt that connects firmly with outer ring 4 screws out earlier, and upper and lower two-part of outer ring 4 are separated, and then inner ring 9 is packed into.After the bearing assembling, in its tail pipe 2 of packing into.
Described liner 7(Fig. 2), its slenderness ratio is 4:1(
L/
D=4:1), make tail bearing can bear bigger radial force.This liner adopts nonmetal water lubrication laths such as rubber, is embedded in the dovetail groove of inner ring 9, so that liner is changed when installing and damaging.
When described tailing axle 8 turned round in liner 7, the moisture film that produces during by work played effect lubricated and cooling.
Described inner ring 9 can adopt high strength, 9Cr18 stainless steel corrosion-resistant, abrasion performance to make.Have dovetail groove on the axis hole circumference of this inner ring, be used to install liner 7.Twice rubber seal 5 and baffle ring 6 are arranged between the inner ball surface of the outer spherical surface of inner ring 9 and outer ring 4, seal.
Referring to Fig. 7 and table 1, inner ring 9 is regulated the shaft axis of tail bearing automatically with the skew of tailing axle 8, guarantee the coaxality requirement of tailing axle 8 and tail bearing, and the pressure distribution on the liner 7 is even.Because the specific pressure on liner 7 surface of contact is even, thereby help the formation of moisture film.
In the table 1: A is not for having the slip water lubrication tail bearing middle pressure (Pa) of self-regulated heart function; B has the sphere slip water lubrication tail bearing middle pressure (Pa) of self-regulated heart function for the present invention.Test conditions: the rotating speed 30r/min of axle.Liner: long (L) 200mm; Diameter (D) 50mm; Load 100N.
Provided by the invention peculiar to vessel from spherical ball face slip water lubrication tail bearing, its working procedure is: referring to Fig. 6, when tailing axle 8 turned round in liner 7, water was entrainmented into two contact surfaces and is produced moisture film pressure, and moisture film pressure is with tailing axle 8 " picking-up ".Because propeller cavitation gravity cantilever action and centering of shafting are bad, tailing axle 8 bends along axis.At this moment, liner 7, inner ring 9 are with the identical angle of tailing axle deflection, to guarantee tailing axle 8 and the requirement of tail bearing coaxality.
Subordinate list
Table 1
| Time (min) | A(Pa) | B(Pa) |
| 0.01 | 0.81 | 0.0121 |
| 0.03 | 453 | 129 |
| 0.10 | 478 | 145 |
| 0.20 | 446 | 129 |
| 0.30 | 479 | 130 |
| 0.40 | 384 | 131 |
| 0.50 | 456 | 131 |
| 0.60 | 485 | 132 |
| 0.70 | 433 | 133 |
| 0.80 | 492 | 133 |
| 0.90 | 584 | 134 |
| 1.00 | 500 | 136 |
| 1.10 | 481 | 136 |
| 1.20 | 501 | 138 |
| 1.30 | 493 | 139 |
| 1.40 | 455 | 141 |
| 1.50 | 473 | 142 |
| 1.60 | 469 | 143 |
| 1.70 | 473 | 146 |
| 1.80 | 422 | 146 |
| 1.90 | 564 | 150 |
| 2.00 | 471 | 149 |
| 2.10 | 433 | 153 |
Claims (5)
1. peculiar to vessel from spherical ball face slip water lubrication tail bearing, it is characterized in that this tail bearing is provided with two pairs of friction pairs, wherein: inner ring (9) and the friction pair that outer ring (4) contact for a pair of sphere, adopt grease lubrication; Inner ring (9) has liner (7), and they connect firmly together, and this liner (7) and tailing axle (8) are a pair of friction pair, adopts water lubrication; When tailing axle (8) turned round in liner (7), inner ring (9) guaranteed that with the shaft axis of the skew self-aligning bearing of tailing axle (8) tailing axle (8) is even with the coaxality requirement and the pressure distribution on the liner (7) of tail bearing.
2. according to claim 1 peculiar to vessel from spherical ball face slip water lubrication tail bearing, it is characterized in that the end face of described outer ring (4) is equipped with oiling mechanism (1), have oil groove (3) on its inner ball surface.
3. according to claim 1 peculiar to vessel from spherical ball face slip water lubrication tail bearing, the slenderness ratio that it is characterized in that liner (7) is 4:1.
4. according to claim 1 or 3 described peculiar to vessel, it is characterized in that liner (7) is nonmetal lath, is embedded in the dovetail groove of inner ring (9) axis hole from spherical ball face slip water lubrication tail bearing.
5. according to claim 4 peculiar to vessel from spherical ball face slip water lubrication tail bearing, it is characterized in that liner (7) is the rubber lath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010590147 CN102011796A (en) | 2010-12-16 | 2010-12-16 | Self-aligning spherical plain water lubricated tail bearing for ships |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010590147 CN102011796A (en) | 2010-12-16 | 2010-12-16 | Self-aligning spherical plain water lubricated tail bearing for ships |
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| CN102011796A true CN102011796A (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010590147 Pending CN102011796A (en) | 2010-12-16 | 2010-12-16 | Self-aligning spherical plain water lubricated tail bearing for ships |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840229A (en) * | 2012-08-31 | 2012-12-26 | 中国舰船研究设计中心 | Aligning propeller bearing device |
| CN103307432A (en) * | 2013-05-23 | 2013-09-18 | 吴江市信合织造有限公司 | Roll shaft lubricating structure |
| CN106015323A (en) * | 2016-07-11 | 2016-10-12 | 武汉理工大学 | Water lubrication spherical bearing for ship shaftless rim propeller |
| CN106241604A (en) * | 2016-08-16 | 2016-12-21 | 北京首钢建设集团有限公司 | Hoisting mill housing automatic central adjusting lifting device and using method |
| CN106678172A (en) * | 2017-01-09 | 2017-05-17 | 重庆大学 | BTG rubber water lubrication thrust bearing |
| CN109455286A (en) * | 2018-11-15 | 2019-03-12 | 中国船舶重工集团公司第七〇九研究所 | A kind of ship stern support device of multifunctional unit |
| CN111947002A (en) * | 2020-08-20 | 2020-11-17 | 青岛理工大学 | Water-lubricated overload protection lubricating oil line supply system and overload protection method |
| CN112923226A (en) * | 2021-02-08 | 2021-06-08 | 青岛理工大学 | Micro-fluidic technology-based micro-oil drop supply system and auxiliary lubrication method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6149337A (en) * | 1997-05-15 | 2000-11-21 | Tides Marine, Inc. | Self-aligning ball and socket bearing assembly |
| CN2583429Y (en) * | 2002-11-07 | 2003-10-29 | 恩荣科技股份有限公司 | Automatic self-aligning plastic bearing |
| CN201434015Y (en) * | 2009-06-25 | 2010-03-31 | 江苏华阳重工科技股份有限公司 | Spherical surface self center regulation high-specific-pressure intermediate bearing |
-
2010
- 2010-12-16 CN CN 201010590147 patent/CN102011796A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6149337A (en) * | 1997-05-15 | 2000-11-21 | Tides Marine, Inc. | Self-aligning ball and socket bearing assembly |
| CN2583429Y (en) * | 2002-11-07 | 2003-10-29 | 恩荣科技股份有限公司 | Automatic self-aligning plastic bearing |
| CN201434015Y (en) * | 2009-06-25 | 2010-03-31 | 江苏华阳重工科技股份有限公司 | Spherical surface self center regulation high-specific-pressure intermediate bearing |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840229B (en) * | 2012-08-31 | 2015-11-18 | 中国舰船研究设计中心 | Adjusting center screw shaft bearing apparatus |
| CN102840229A (en) * | 2012-08-31 | 2012-12-26 | 中国舰船研究设计中心 | Aligning propeller bearing device |
| CN103307432A (en) * | 2013-05-23 | 2013-09-18 | 吴江市信合织造有限公司 | Roll shaft lubricating structure |
| CN103307432B (en) * | 2013-05-23 | 2015-07-29 | 江苏银桥纺织科技有限公司 | A kind of roll shaft lubricating structure |
| CN106015323B (en) * | 2016-07-11 | 2018-05-01 | 武汉理工大学 | Water lubrication spherical bearing for the shaftless wheel rim propeller of ship |
| CN106015323A (en) * | 2016-07-11 | 2016-10-12 | 武汉理工大学 | Water lubrication spherical bearing for ship shaftless rim propeller |
| CN106241604A (en) * | 2016-08-16 | 2016-12-21 | 北京首钢建设集团有限公司 | Hoisting mill housing automatic central adjusting lifting device and using method |
| CN106678172A (en) * | 2017-01-09 | 2017-05-17 | 重庆大学 | BTG rubber water lubrication thrust bearing |
| CN106678172B (en) * | 2017-01-09 | 2021-07-20 | 重庆大学 | BTG rubber water lubrication thrust bearing |
| CN109455286A (en) * | 2018-11-15 | 2019-03-12 | 中国船舶重工集团公司第七〇九研究所 | A kind of ship stern support device of multifunctional unit |
| CN111947002A (en) * | 2020-08-20 | 2020-11-17 | 青岛理工大学 | Water-lubricated overload protection lubricating oil line supply system and overload protection method |
| CN111947002B (en) * | 2020-08-20 | 2021-06-29 | 青岛理工大学 | Water-lubricated overload protection lubricating oil line supply system and overload protection method |
| WO2022036784A1 (en) * | 2020-08-20 | 2022-02-24 | 青岛理工大学 | Lubricating oil line supply system for overload protection for water lubrication and overload protection method |
| CN112923226A (en) * | 2021-02-08 | 2021-06-08 | 青岛理工大学 | Micro-fluidic technology-based micro-oil drop supply system and auxiliary lubrication method thereof |
| CN112923226B (en) * | 2021-02-08 | 2022-02-01 | 青岛理工大学 | Micro-fluidic technology-based micro-oil drop supply system and auxiliary lubrication method thereof |
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Application publication date: 20110413 |