CN105508414A - Damping-type tilting pad thrust bearing - Google Patents
Damping-type tilting pad thrust bearing Download PDFInfo
- Publication number
- CN105508414A CN105508414A CN201610018778.4A CN201610018778A CN105508414A CN 105508414 A CN105508414 A CN 105508414A CN 201610018778 A CN201610018778 A CN 201610018778A CN 105508414 A CN105508414 A CN 105508414A
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- CN
- China
- Prior art keywords
- support ring
- type tilting
- damping
- thrust
- thrust disc
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
- F16C17/08—Sliding-contact bearings for exclusively rotary movement for axial load only for supporting the end face of a shaft or other member, e.g. footstep bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention provides a damping-type tilting pad thrust bearing. The damping-type tilting pad thrust bearing comprises a pressure head, a thrust disc and a support ring. The support ring is coaxially arranged under the thrust disc, the pressure head is coaxially and fixedly connected to the upper surface of the thrust disc, and the thrust disc is coaxially and fixedly connected with a rotating shaft through the pressure head. The damping-type tilting pad thrust bearing further comprises multiple damping-type tilting pad assemblies which are uniformly fixed to the upper surface of the support ring at intervals and used for jointly bearing an axial load. Each damping-type tilting pad assembly comprises a pad face, an upper base body, a damping rubber gasket and a lower base body which are sequentially and closely connected from top to bottom, and gaps exist between the upper surfaces of the pad faces and the lower surface of the thrust disc; the cross sections of the damping rubber gaskets are in a stair shape in the axial direction, and the thicknesses of the damping rubber gaskets are gradually decreased in the rotating direction of the thrust disc; the lower base bodies are fixedly connected with the support ring. The damping-type tilting pad thrust bearing can adopt water as a lubricating agent and has the good damping effect.
Description
Technical field
The invention belongs to thrust-bearing technical field under water, particularly a kind of damp type tilting thrust bearing.
Background technique
Current, domestic and international movable multicollar thrust bearing is mainly divided into two classes, and a class is John Cameron Mitchell bearing, and a class is Jin Sibailei bearing.John Cameron Mitchell bearing is comparatively strong to the adaptive capacity of fluctuating load, but load is not be evenly distributed on each tile fragment, and it is uneven that this just causes the wearing and tearing of thrust bearing tile fragment.Jin Sibailei bearing then overcomes above-mentioned shortcoming, and its advantage is that load diatibution is even, flexible adjustment, and what can compensate rotor misaligns deflection, but structure also complex.Above-mentioned two kinds of bearings do not possess vibration and noise reducing ability, and can only be used for oil lubrication.Chinese patent " a kind of thrust bearing supported by elastic cushion " (CN201439803) discloses the thrust-bearing that a kind of cushion supports, but because cushion and thrust bearing shoe valve are spacing by straight pin, rubber pad and thrust bearing shoe valve is caused level to install, limit its application area, the occasion of the vertical thrust of vertical turbine equivalent-load can only be used for; Only consider during this Designing Thrust Bearing that it all carries function and oil lubrication environment, can not water lubrication be used for.
The oil leak of ship oil lubricating thrust-bearing can cause serious water resource pollution.In recent years, people recognized environmental protection gradually, saved the energy to the important meaning of human kind sustainable development, and the cry of energy-conservation, the pollution-free water lubriucated bearing of development of new is more and more higher.Glassware for drinking water has the advantages such as pollution-free, wide material sources, Security and flame retardancy, and can replacing with it in a lot of oil lubrication cooling occasion, is a kind of tool lubricant medium with broad prospects for development.Secondly, particularly naval vessel is in order to reach hidden effect for boats and ships, higher to the vibration and noise reducing performance requirement of thrust-bearing.
Summary of the invention
Object of the present invention is exactly the defect for prior art, provides a kind of Buddhist nun's type tilting thrust bearing, water can be adopted as oiling agent and have good effectiveness in vibration suppression.
The invention provides a kind of damp type tilting thrust bearing, comprise pressure head, thrust disc and support ring, support ring is coaxially arranged at the below of thrust disc, pressure head is coaxially fixedly connected on the upper surface of thrust disc, thrust disc is coaxially fixedly connected with rotating shaft by pressure head, the present invention also comprises the damp type tilting bush assembly that multiple uniform intervals is fixed on support ring upper surface, shared thrust load.Damp type tilting bush assembly comprises from top to bottom close-connected tiling, upper matrix, damping rubber pad and lower substrate successively, there is gap between the upper surface of tiling and thrust disc lower surface; The cross section of damping rubber pad axial direction is stepped, and the thickness of damping rubber pad successively decreases along the sense of rotation of thrust disc; Lower substrate is fixedly connected with support ring.
Described lower substrate is connected with support ring by bolt, and support ring upper surface is provided with the groove matched with lower substrate, and support ring lower surface is provided with counterbore, and lower substrate bottom surface is provided with the screw matched with bolt; Lower substrate is arranged in groove; The nut of bolt is arranged in counterbore, and the stud of bolt is fixed in screw through support ring.
Described tiling adopts match dragon or flying dragon material, both available water lubrication, also usable oils lubrication.
Described damping rubber pad adopts nitrile rubber, and damping rubber pad is fitted tightly by sulfuration process and upper matrix and lower substrate, upper matrix, does not have other any links between damping rubber pad and lower substrate.
Described thrust disc adopts stainless steel material, and described upper matrix and lower substrate adopt bronze material, effectively ensures thrust-bearing underwater working life.
Structure of the present invention is simple, and assembly is few, has the advantage of fixed pad thrust bearing and common tilting thrust bearing concurrently.Tiling of the present invention adopts macromolecular material, is effectively applicable to water lubrication.Damping rubber pad of the present invention is ladder-type, and before and after it, thickness is different, and thick local rigidity is little, after working conditions change, damping rubber pad deforms, and the place distortion that thickness is large is large, causes matrix to tilt, make to form wedge shape between tiling and thrust disc, easily form moisture film, produce hydrldynamic pressure lubrication.Operating mode is different, and the distortion of damping rubber pad is just different, can automatically adjust matrix inclination angle, make to form the optimum angle of wedge between tiling and thrust disc, has optimum carrying during variable working condition, is particularly suitable for the occasion that such as naval vessel etc. is often in variable working condition.Damping rubber pad can absorb the self-excited vibration energy of vibrational energy that rotating shaft passes over and tilting bush assembly, realizes the object of vibration damping and vibration isolation.The distortion of damping rubber pad is conducive to the difference of load between each watt of minimizing, plays and all carries effect, thus improves the problem of the bearing performance deterioration that thrust disc tilts to cause.
Accompanying drawing explanation
Fig. 1 is structural representation a of the present invention;
Fig. 2 is structural representation b of the present invention;
Wherein: 1-pressure head; 2-thrust disc; 3-damp type tilting bush assembly; 3-1-tiling; The upper matrix of 3-2-; 3-3-damping rubber pad; 3-4-lower substrate; 4-support ring; 5-counterbore; 6-bolt; 7-groove; 8-screw.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, is convenient to be well understood to the present invention, but they do not form restriction to the present invention.
As shown in Figure 1, the invention provides a kind of damp type tilting thrust bearing, comprise pressure head 1, thrust disc 2 and support ring 4, support ring 4 is coaxially arranged at the below of thrust disc 2, pressure head 1 is coaxially fixedly connected on the upper surface of thrust disc 2, thrust disc 2 is coaxially fixedly connected with rotating shaft by pressure head 1, and the present invention also comprises the damp type tilting bush assembly 3 that multiple uniform intervals is fixed on support ring 4 upper surface, shared thrust load.Damp type tilting bush assembly 3 is fan-shaped cylinder structure.Damp type tilting bush assembly 3 comprise fit tightly connection from top to bottom successively there is gap, for the formation of moisture film between tiling 3-1, the upper surface of upper matrix 3-2, damping rubber pad 3-3 and lower substrate 3-4, tiling 3-1 and thrust disc 2 lower surface.The cross section of damping rubber pad 3-3 axial direction is stepped, and the thickness of damping rubber pad 3-3 successively decreases along the sense of rotation of thrust disc 2; Lower substrate 3-4 is fixedly connected with support ring 4.Described tiling 3-1 adopts match dragon or flying dragon material, both available water lubrication, also usable oils lubrication.Described thrust disc 2 adopts stainless steel material, and described upper matrix 3-2 and lower substrate 3-4 adopt bronze material, effectively ensures thrust-bearing underwater working life.Described damping rubber pad 3-3 adopts nitrile rubber, damping rubber pad 3-3 is maturation process by this sulfuration process of sulfuration process, specifically can reference " research of water lubriucated bearing rubber vulcanization process system optimization method ", Cui Hongbin and upper matrix 3-2 and lower substrate 3-4 fits tightly, and upper matrix 3-2, does not have other any links between damping rubber pad 3-3 and lower substrate 3-4.Tiling material can need to screen according to working environment and condition, select the materials such as match dragon, flying dragon or the better SF-1 of other wear-resisting propertys, the performance design of damping rubber pad 3-3 is mainly hardness and Intensity Design, and rubber formulation must carry out selection and design according to Environmental Conditions, working condition and performance requirement.The present invention to can be applicable on naval vessel and does oiling agent with seawater, should have good anti-seawater corrosion, shock-resistant, creep-resistant property and longer working life.
As shown in Figure 2, described lower substrate 3-4 is connected with support ring 4 by bolt 6, and support ring 4 upper surface is provided with the groove 7 matched with lower substrate 3-4, and lower substrate 3-4 is arranged in groove 7, ensures the stability of installing.Support ring 4 lower surface is provided with counterbore 5, and lower substrate bottom surface is provided with the screw 8 matched with bolt 6; The nut of bolt 6 is arranged in counterbore 5, and the stud of bolt 6 is fixed in screw 8 through support ring 4.
During work, thrust disc 2 rotates under rotating shaft drives, and damp type tilting bush assembly 3 is fixed on support ring 4 and keeps static.Oiling agent is brought in the gap between thrust disc 2 and tiling 3-1 by thrust disc 2, and sets up film pressure distribution in gap, forms the liquid film power contrary with loading direction.Liquid film power forces damping rubber pad 3-3 to be out of shape, but because rubber pad thickness is circumferentially different, be thus out of shape size difference to some extent, the place distortion that damping rubber pad 3-3 thickness is large is also large, cause matrix 3-2 and tiling 3-1 run-off the straight, film pressure distribution and liquid film power also change thereupon.When liquid film power is equal with load, tilt angle and the film pressure distribution of tiling 3-1 are determined, bearing working is stablized.When operating mode rotating speed or load change, the tilt angle of film pressure, liquid film thickness, damping rubber pad 3-3 distortion, tiling 3-1 all changes, and makes liquid film power and load again reach balance, enters new steady-working state.During bearing working, damping rubber pad 3-3 can absorb the vibrational energy be delivered to through liquid film on damp type tilting bush assembly 3, plays the effect of vibration damping and vibration isolation.
The content that this specification is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (6)
1. a damp type tilting thrust bearing, comprise pressure head (1), thrust disc (2) and support ring (4), support ring (4) is coaxially arranged at the below of thrust disc (2), pressure head (1) is coaxially fixedly connected on the upper surface of thrust disc (2), thrust disc (2) is coaxially fixedly connected with rotating shaft by pressure head (1), it is characterized in that: also comprise the damp type tilting bush assembly (3) that multiple uniform intervals is fixed on support ring (4) upper surface, damp type tilting bush assembly (3) comprises from top to bottom close-connected tiling (3-1) successively, upper matrix (3-2), damping rubber pad (3-3) and lower substrate (3-4), gap is there is between the upper surface of tiling (3-1) and thrust disc (2) lower surface, the cross section of damping rubber pad (3-3) axial direction is stepped, and the thickness of damping rubber pad (3-3) successively decreases along the sense of rotation of thrust disc (2), lower substrate (3-4) is fixedly connected with support ring (4).
2. damp type tilting thrust bearing according to claim 1, it is characterized in that lower substrate (3-4) is connected with support ring (4) by bolt (6), support ring (4) upper surface is provided with the groove (7) matched with lower substrate (3-4), support ring (4) lower surface is provided with counterbore (5), and lower substrate bottom surface is provided with the screw (8) matched with bolt (6); Lower substrate (3-4) is arranged in groove (7); The nut of bolt (6) is arranged in counterbore (5), and the stud of bolt (6) is fixed in screw (8) through support ring (4).
3. damp type tilting thrust bearing according to claim 1, is characterized in that tiling (3-1) adopts match dragon or flying dragon material.
4. damp type tilting thrust bearing according to claim 1, it is characterized in that damping rubber pad (3-3) adopts nitrile rubber, damping rubber pad (3-3) is fitted tightly by sulfuration process and upper matrix (3-2) and lower substrate (3-4).
5. damp type tilting thrust bearing according to claim 1, is characterized in that thrust disc (2) adopts stainless steel material.
6. damp type tilting thrust bearing according to claim 1, is characterized in that matrix (3-2) and lower substrate (3-4) adopt bronze material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610018778.4A CN105508414B (en) | 2016-01-12 | 2016-01-12 | Damp type tilting thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610018778.4A CN105508414B (en) | 2016-01-12 | 2016-01-12 | Damp type tilting thrust bearing |
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| CN105508414A true CN105508414A (en) | 2016-04-20 |
| CN105508414B CN105508414B (en) | 2019-04-02 |
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| CN201610018778.4A Active CN105508414B (en) | 2016-01-12 | 2016-01-12 | Damp type tilting thrust bearing |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105882929A (en) * | 2016-05-12 | 2016-08-24 | 武汉理工大学 | Water-lubricated thrust-radial combined bearing for shaftless propeller |
| CN106321623A (en) * | 2016-10-17 | 2017-01-11 | 武汉理工大学 | Quick-replacement type elastic-cushion-supported tilting pad thrust bearing |
| CN106351945A (en) * | 2016-10-27 | 2017-01-25 | 中国人民解放军海军工程大学 | Sectional rubber tilting-pad thrust bearing |
| CN106438675A (en) * | 2016-10-17 | 2017-02-22 | 武汉理工大学 | Tilting-pad thrust bearing supported through elastic disc |
| CN106678172A (en) * | 2017-01-09 | 2017-05-17 | 重庆大学 | BTG rubber water lubrication thrust bearing |
| CN106704362A (en) * | 2017-01-09 | 2017-05-24 | 重庆大学 | Integral type coordinative-deformation water-lubrication thrust bearing |
| CN106763147A (en) * | 2017-01-09 | 2017-05-31 | 重庆大学 | NEW ADAPTIVE water lubricating thrust bearing |
| CN111927875A (en) * | 2020-08-18 | 2020-11-13 | 南昌工程学院 | Corrosion-resistant water pump thrust bearing with composite bearing bush and machining method thereof |
| CN113494523A (en) * | 2021-07-14 | 2021-10-12 | 武汉理工大学 | Heavy-load point-supported elastic tilting-pad water-lubricated sliding thrust bearing |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB547389A (en) * | 1942-01-16 | 1942-08-25 | Bliss E W Co | Improvements in or relating to thrust or step bearings |
| DE1160873B (en) * | 1961-06-13 | 1964-01-09 | Wolfhart Andrae Dipl Ing | Tilting bearings for bridges and similar structures |
| JPH0727133A (en) * | 1993-07-07 | 1995-01-27 | Toshiba Corp | Thrust bearing |
| CN201262189Y (en) * | 2008-07-24 | 2009-06-24 | 大连三环复合材料技术开发有限公司 | Single-substrate double-row elastic metal plastic propulsion tile |
| CN201439803U (en) * | 2009-06-04 | 2010-04-21 | 水利部杭州机械设计研究所 | Thrust bearing supported by elastic cushion |
| CN104085523A (en) * | 2014-07-08 | 2014-10-08 | 中国船舶工业集团公司七〇八研究所 | Ship tail bearing and tail pipe water lubrication device |
| CN105114446A (en) * | 2015-09-15 | 2015-12-02 | 武汉理工大学 | Changeable stepped damping thrust bearing |
| CN205578505U (en) * | 2016-01-12 | 2016-09-14 | 中国人民解放军海军工程大学 | Damping type tilting pad thrust bearing |
-
2016
- 2016-01-12 CN CN201610018778.4A patent/CN105508414B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB547389A (en) * | 1942-01-16 | 1942-08-25 | Bliss E W Co | Improvements in or relating to thrust or step bearings |
| DE1160873B (en) * | 1961-06-13 | 1964-01-09 | Wolfhart Andrae Dipl Ing | Tilting bearings for bridges and similar structures |
| JPH0727133A (en) * | 1993-07-07 | 1995-01-27 | Toshiba Corp | Thrust bearing |
| CN201262189Y (en) * | 2008-07-24 | 2009-06-24 | 大连三环复合材料技术开发有限公司 | Single-substrate double-row elastic metal plastic propulsion tile |
| CN201439803U (en) * | 2009-06-04 | 2010-04-21 | 水利部杭州机械设计研究所 | Thrust bearing supported by elastic cushion |
| CN104085523A (en) * | 2014-07-08 | 2014-10-08 | 中国船舶工业集团公司七〇八研究所 | Ship tail bearing and tail pipe water lubrication device |
| CN105114446A (en) * | 2015-09-15 | 2015-12-02 | 武汉理工大学 | Changeable stepped damping thrust bearing |
| CN205578505U (en) * | 2016-01-12 | 2016-09-14 | 中国人民解放军海军工程大学 | Damping type tilting pad thrust bearing |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105882929A (en) * | 2016-05-12 | 2016-08-24 | 武汉理工大学 | Water-lubricated thrust-radial combined bearing for shaftless propeller |
| CN106321623A (en) * | 2016-10-17 | 2017-01-11 | 武汉理工大学 | Quick-replacement type elastic-cushion-supported tilting pad thrust bearing |
| CN106438675A (en) * | 2016-10-17 | 2017-02-22 | 武汉理工大学 | Tilting-pad thrust bearing supported through elastic disc |
| CN106321623B (en) * | 2016-10-17 | 2018-06-08 | 武汉理工大学 | A kind of quick-changing type bullet branch tilting thrust bearing |
| CN106351945A (en) * | 2016-10-27 | 2017-01-25 | 中国人民解放军海军工程大学 | Sectional rubber tilting-pad thrust bearing |
| CN106351945B (en) * | 2016-10-27 | 2018-11-30 | 中国人民解放军海军工程大学 | It is segmented rubber tilting thrust bearing |
| CN106763147A (en) * | 2017-01-09 | 2017-05-31 | 重庆大学 | NEW ADAPTIVE water lubricating thrust bearing |
| CN106704362A (en) * | 2017-01-09 | 2017-05-24 | 重庆大学 | Integral type coordinative-deformation water-lubrication thrust bearing |
| CN106678172A (en) * | 2017-01-09 | 2017-05-17 | 重庆大学 | BTG rubber water lubrication thrust bearing |
| CN106704362B (en) * | 2017-01-09 | 2021-07-20 | 重庆大学 | Integral type coordinative deformation water lubrication thrust bearing |
| CN106678172B (en) * | 2017-01-09 | 2021-07-20 | 重庆大学 | BTG rubber water lubrication thrust bearing |
| CN111927875A (en) * | 2020-08-18 | 2020-11-13 | 南昌工程学院 | Corrosion-resistant water pump thrust bearing with composite bearing bush and machining method thereof |
| CN111927875B (en) * | 2020-08-18 | 2021-10-12 | 南昌工程学院 | Machining method of corrosion-resistant water pump thrust bearing with composite bearing bush |
| CN113494523A (en) * | 2021-07-14 | 2021-10-12 | 武汉理工大学 | Heavy-load point-supported elastic tilting-pad water-lubricated sliding thrust bearing |
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| CN105508414B (en) | 2019-04-02 |
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