CN201872944U - Automatic centering device for ship stern bearing - Google Patents
Automatic centering device for ship stern bearing Download PDFInfo
- Publication number
- CN201872944U CN201872944U CN 201020627244 CN201020627244U CN201872944U CN 201872944 U CN201872944 U CN 201872944U CN 201020627244 CN201020627244 CN 201020627244 CN 201020627244 U CN201020627244 U CN 201020627244U CN 201872944 U CN201872944 U CN 201872944U
- Authority
- CN
- China
- Prior art keywords
- bearing
- stern
- ship stern
- elastic
- vibration
- 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
Images
Landscapes
- Support Of The Bearing (AREA)
Abstract
The utility model provides an automatic centering device for a ship stern bearing, which consists of a neck bush, an outer bush and an elastic interlayer, wherein the elastic interlayer is arranged between the neck bush and the outer bush and is fixedly connected with the neck bush and the outer bush, and the outer bush is used for being fixedly connected with a shaft hub. For the automatic centering device for the ship stern bearing, by utilizing an elastic characteristic of the elastic interlayer, the posture of the stern bearing can be automatically adjusted along with the change of bearing load during running of a propeller shaft, so that the 'edge effect' of the stern bearing is eliminated, the load of the stern bearing can be uniformly distributed in the whole bearing length, the dynamic centering state of a shafting is improved, the shafting vibration is reduced and the service life of a bearing is prolonged. Simultaneously, by utilizing the vibration reduction performance of elastic materials of the elastic interlayer, transmission of vibration of the shafting to the ship stern structure can be obviously isolated, so that the vibration of the ship stern can be reduced, and radiation noise at the ship stern can be lowered.
Description
Technical field
The utility model relates to the block bearing of boats and ships stern, relates in particular to a kind of boats and ships stern bearing automatic centring device.
Background technology
Boats and ships stern bearing is under angle of rake contilever load effect, distribution of load is inhomogeneous, tend to occur comparatively serious " edge load " effect, be that the stern bearing is not evenly carrying on whole bearing length, near angle of rake stern load maximum, minimum away from angle of rake bow carrying, even come to nothing, therefore can cause the shafting vibration aggravation, wear-out of a bearing is accelerated.And axle is the variation that is subjected to dynamic factors such as shipbody deformation, bearing rigidity, wear-out of a bearing and propelling unit hydrodynamic property in the operation process, and the load situation of stern bearing is constantly to change, and then also can have influence on the service life of bearing.
Lloyd | s Register of Shipping (LR), Amerian Bureau of Shipping (ABS), Det Norske Veritas (DNV) and China Classification Society (CCS) all spell out: the excessive bearing fulcrum place angle of eccentricity that causes surpasses 3.0 * 10 because stern is loaded in the computation process in the school when boats and ships stern bearing
-4During rad, need to adopt the measure of inclination bearing to make bearing fulcrum place angle of eccentricity satisfy regulation.But the boats and ships axle ties up in the operational process under the actual conditions, the shafting alignment state is subjected to the influence of dynamic factors such as shipbody deformation, bearing rigidity, wear-out of a bearing, propelling unit hydrodynamic property and rotation speed change, make that bearing load size and load diffusion situation all are constantly to change, is that result of calculation serves as according to implementing in the static school and adopt the method for inclination bearing with axle, existing condition during with the running of axle system is not inconsistent, so role is limited.
The utility model content
Technical problem to be solved in the utility model is: at above-mentioned the deficiencies in the prior art, a kind of boats and ships stern bearing automatic centring device is provided, can be in the marine shafting operation process automatic compensation shafting alignment state, bearing load is evenly distributed, reduce wear-out of a bearing speed, reduce shafting vibration simultaneously.
The utility model is that the technical scheme that problem adopted of the above-mentioned proposition of solution is:
Boats and ships stern bearing automatic centring device, it is made up of inner covering, external bushing and elastic interlayer, described elastic interlayer is arranged between described inner covering and the external bushing, and captives joint with described external bushing with described inner covering, and described external bushing is used for captiveing joint with propeller boss.
The beneficial effects of the utility model are: boats and ships stern bearing automatic centring device utilizes the elastic behavior of elastic interlayer, make the stern bearing can be in the propulsion shafting operation process along with the variation self-adjustable bearing attitude of bearing load, eliminate " edge effect " of stern bearing, make stern bearing load rectangular distribution on whole bearing length, improving axle is state in the dynamic school, reduce shafting vibration, prolong bearing service life.Utilize the cushioning performance of the elastomeric material of elastic interlayer can obviously isolate the transmission of shafting vibration simultaneously, reduce the hull stern vibration, reduce hull stern radiated noise to the boats and ships stern structure.
Description of drawings
Fig. 1 is the cutaway view of boats and ships stern bearing automatic centring device of the present utility model.
The part sectional view that Fig. 2 uses on marine shafting for boats and ships stern bearing automatic centring device of the present utility model.
Among the figure: 1-external bushing, 2-elastic interlayer, 3-inner covering, 4-main shaft, 5-axle sleeve, baffle ring before the 6-propeller boss, 7-, 8-boats and ships stern bearing automatic centring device, baffle ring behind the 9-, 10-stern bearing, 11-propelling unit.
The specific embodiment
As shown in Figure 1, it is the boats and ships stern bearing automatic centring device 8 that the utility model embodiment provides, and it is made up of inner covering 3, external bushing 1 and elastic interlayer 2.Elastic interlayer 2 is arranged between inner covering 3 and the external bushing 1, and captives joint with external bushing 1 with inner covering 3.In the present embodiment, elastic interlayer 2 uses elastomeric material, can be near the cavity that is injected into formation between inner covering 3 and the external bushing 1 under the curing temperature with rubber mass, and sulfidization molding.The material of inner covering 3 is metal or polyethylene.The material of external bushing 1 is a metal.
During work, as shown in Figure 2, have bolt hole on the flange of external bushing 1, automatic centring device 8 is fixed on the propeller boss 6 by binding bolt.Stern bearing 10 is installed in the inner covering 3, and before being provided with baffle ring 7 and back baffle ring 9 at the two ends of automatic centring device 8, and fixing with stern bearing 10, to prevent moving axially of stern bearing 10.Stern bearing 10 is set on the axle sleeve 5 of main shaft 4.During propelling unit 11 running because the elastic reaction of elastic interlayer 2, stern bearing 10 can be according to actual bearer situation automatic compensation attitude, make the load rectangular distribution of stern bearing 10, improving axle is state in the dynamic school, utilizes elastic interlayer 2 can effectively isolate the transmission of shafting vibration to the boats and ships stern structure simultaneously.
Protection domain of the present utility model is not limited to the above embodiments, and obviously, those skilled in the art can carry out various changes and distortion and not break away from scope and spirit of the present utility model the utility model.If these changes and distortion belong in the scope of the utility model claim and equivalent technologies thereof, intention then of the present utility model also comprises these changes and is out of shape interior.
Claims (1)
1. boats and ships stern bearing automatic centring device, it is characterized in that it is made up of inner covering, external bushing and elastic interlayer, described elastic interlayer is arranged between described inner covering and the external bushing, and captive joint with described external bushing with described inner covering, described external bushing is used for captiveing joint with propeller boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020627244 CN201872944U (en) | 2010-11-26 | 2010-11-26 | Automatic centering device for ship stern bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020627244 CN201872944U (en) | 2010-11-26 | 2010-11-26 | Automatic centering device for ship stern bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201872944U true CN201872944U (en) | 2011-06-22 |
Family
ID=44160873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020627244 Expired - Fee Related CN201872944U (en) | 2010-11-26 | 2010-11-26 | Automatic centering device for ship stern bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201872944U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587797A (en) * | 2015-02-04 | 2016-05-18 | 洪涛 | Spatial wedge-typed overrunning pulley capable of reducing torsional vibration and overrunning clutch |
| CN107605941A (en) * | 2017-08-30 | 2018-01-19 | 中国舰船研究设计中心 | A kind of marine shafting elastic damping shock-absorbing bearing structure |
| CN107628218A (en) * | 2017-09-08 | 2018-01-26 | 中国船舶重工集团公司第七〇九研究所 | A kind of stern bearing cast damping unit and preparation method |
| 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 |
| CN112441046A (en) * | 2019-08-30 | 2021-03-05 | 陕西华铁氟橡塑制品有限公司 | Elastic positioning sleeve and manufacturing method thereof, axle box positioning device and bogie |
| CN115059732A (en) * | 2022-07-13 | 2022-09-16 | 中国舰船研究设计中心 | Stern bearing vibration reduction structure for reducing transverse vibration of ship shafting and design method |
-
2010
- 2010-11-26 CN CN 201020627244 patent/CN201872944U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587797A (en) * | 2015-02-04 | 2016-05-18 | 洪涛 | Spatial wedge-typed overrunning pulley capable of reducing torsional vibration and overrunning clutch |
| CN107605941A (en) * | 2017-08-30 | 2018-01-19 | 中国舰船研究设计中心 | A kind of marine shafting elastic damping shock-absorbing bearing structure |
| CN107605941B (en) * | 2017-08-30 | 2019-05-24 | 中国舰船研究设计中心 | A kind of marine shafting elastic damping shock-absorbing bearing structure |
| CN107628218A (en) * | 2017-09-08 | 2018-01-26 | 中国船舶重工集团公司第七〇九研究所 | A kind of stern bearing cast damping unit and preparation method |
| CN107628218B (en) * | 2017-09-08 | 2020-03-20 | 中国船舶重工集团公司第七一九研究所 | Pouring damping device for stern bearing and preparation method |
| 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 |
| CN112441046A (en) * | 2019-08-30 | 2021-03-05 | 陕西华铁氟橡塑制品有限公司 | Elastic positioning sleeve and manufacturing method thereof, axle box positioning device and bogie |
| CN115059732A (en) * | 2022-07-13 | 2022-09-16 | 中国舰船研究设计中心 | Stern bearing vibration reduction structure for reducing transverse vibration of ship shafting and design method |
| CN115059732B (en) * | 2022-07-13 | 2024-01-26 | 中国舰船研究设计中心 | Stern bearing vibration reduction structure for reducing transverse vibration of ship shafting and design method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201872944U (en) | Automatic centering device for ship stern bearing | |
| CN105292424A (en) | Ship flange integration propulsion device | |
| KR101334217B1 (en) | Fuel-efficiecy Improving crown duct for ship | |
| CN113815832B (en) | Rim-driven semi-submerged propeller | |
| CN104787284A (en) | Child-mother coaxial guide pipe wheel propeller | |
| KR102252972B1 (en) | Stern tube bearing unit and installation method thereof | |
| CN104002954A (en) | Vessel tail shaft device | |
| CN109455286A (en) | A kind of ship stern support device of multifunctional unit | |
| CN114524074A (en) | Rim-driven propeller of magnetic suspension permanent magnet motor | |
| CN100411945C (en) | Jet propulsion pump device for flexile mounting ship | |
| CN103010406A (en) | Stern rotary drum | |
| CN202368781U (en) | Marine efficient and energy-saving guide pipe | |
| CN202368782U (en) | Energy-saving guide pipe for built-in guide vanes | |
| CN201309571Y (en) | Marine bulkhead sealing device | |
| CN203111449U (en) | Stern rolling tube | |
| CN104290897A (en) | Improved tail shaft for ship | |
| CN111532408A (en) | Low-vibration high-efficiency double-conduit paddle front energy-saving device | |
| CN204642125U (en) | A kind of novel propelling unit | |
| CN204056279U (en) | Screw shaft of ship device | |
| Jinming et al. | Design and Numerical Analysis of Hydrodynamic Performance for# br# Anti Cavitation Twisted Rudder | |
| CN212500968U (en) | Low-vibration high-efficiency double-conduit paddle front energy-saving device | |
| CN201176260Y (en) | Shock resistance axial seal device for screw shaft of ship shock resistance type axial seal device for stern shaft of shipping | |
| CN114026020A (en) | Rudder blade device and ship | |
| JPS59130799A (en) | Outboard motor equipped with buoyancy plate | |
| DING et al. | Discussion on propeller design of polar icebreaker |
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: 20110622 Termination date: 20161126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |