CN117022631A - Large-sized high-temperature-resistant and high-wear-resistant water-lubricated bearing and design method thereof - Google Patents

Large-sized high-temperature-resistant and high-wear-resistant water-lubricated bearing and design method thereof Download PDF

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Publication number
CN117022631A
CN117022631A CN202310907299.8A CN202310907299A CN117022631A CN 117022631 A CN117022631 A CN 117022631A CN 202310907299 A CN202310907299 A CN 202310907299A CN 117022631 A CN117022631 A CN 117022631A
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China
Prior art keywords
bearing
resistant
wear
water
bush
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CN202310907299.8A
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Chinese (zh)
Inventor
罗斌
孙玲
石帅
周建辉
刘继男
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China Ship Development and Design Centre
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China Ship Development and Design Centre
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Priority to CN202310907299.8A priority Critical patent/CN117022631A/en
Publication of CN117022631A publication Critical patent/CN117022631A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32—Other parts
    • B63H23/321—Bearings or seals specially adapted for propeller shafts
    • B63H23/326—Water lubricated bearings
    • 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
    • F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
    • F16C17/24—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
    • F16C17/243—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety related to temperature and heat, e.g. for preventing overheating
    • 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
    • F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
    • F16C17/24—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
    • F16C17/246—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety related to wear, e.g. sensors for measuring wear
    • 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
    • F16C33/046—Brasses; Bushes; Linings divided or split, e.g. half-bearings or rolled sleeves
    • 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
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/201—Composition of the plastic
    • 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
    • F16C37/00—Cooling of bearings
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/17—Mechanical parametric or variational design
    • 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
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/50—Lubricating properties
    • F16C2202/52—Graphite
    • 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
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/50—Lubricating properties
    • F16C2202/54—Molybdenum disulfide

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Evolutionary Computation (AREA)
  • Combustion & Propulsion (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

The application relates to the technical field of large ship propulsion system design, in particular to a large high-temperature-resistant and high-wear-resistant water lubrication bearing and a design method thereof. The water lubrication bearing structure mainly comprises main components such as a bearing upper bushing, a bearing lower bushing, a bearing lath, a stop copper bar, a stop ring and the like; the bearing bush inner ring is formed by assembling three bearing battens with different sizes, and the arrangement positions of the bearing battens with different sizes are designed according to the actual load condition of the water-lubricated bearing of the large ship, so that the antifriction, wear-resistant and cooling performance of the water-lubricated bearing can be effectively ensured, and the requirements of the large ship on high temperature resistance and high wear resistance of the water-lubricated bearing under extreme working conditions such as sediment environment and the like are met.

Description

Large-sized high-temperature-resistant and high-wear-resistant water-lubricated bearing and design method thereof
Technical Field
The application relates to the technical field of large ship propulsion system design, in particular to a large high-temperature-resistant and high-wear-resistant water lubrication bearing and a design method thereof.
Background
The water lubrication bearing is an important accessory device of a large ship shafting and is used for bearing the weight of a propeller and the shafting and friction and abrasion generated by rotation. The water-lubricated bearing for large ships in the prior art has large bearing load and severe working conditions in the extreme environment (sediment environment), and is easy to generate faults such as scorching, layering, abnormal wear and the like in the use process.
Meanwhile, the performance and structural form of the polymer lath material of the water-lubricated bearing are key factors influencing the functional performance of the water-lubricated bearing, and polyurethane lath materials are often adopted in the design scheme of the water-lubricated bearing in the prior art, so that the water-lubricated bearing is easy to hydrolyze, easy to wear and limited in use temperature.
Disclosure of Invention
The application aims to solve the technical problems that: aiming at the defects of the prior art, the large-sized high-temperature-resistant and high-wear-resistant water lubrication bearing and the design method thereof are provided, so that the high-temperature resistance and wear resistance of the large-sized water lubrication bearing for ships can be improved, the adaptability and the service life of the bearing to the limiting working condition are improved, and the reliability of the ships for executing tasks is improved.
In order to solve the technical problems, the application adopts the following technical scheme:
1. large-scale high temperature resistant, high wear resistant water lubricated bearing
The application provides a large-scale high-temperature-resistant and high-wear-resistant water lubrication bearing, which mainly comprises: the bearing comprises an upper bearing bush 1 and a lower bearing bush 2, wherein the upper bearing bush 1 and the lower bearing bush 2 are spliced into a cylindrical bearing structure, a stop ring 10 is arranged at the end part of the cylindrical bearing structure, and a plurality of circumferential occupation angles theta are arranged on the inner ring of the cylindrical bearing structure along the circumferential direction 1 The bottom of the inner ring of the cylindrical bearing structure is provided with a circumferential occupation angle theta 2 Is provided with a second bearing plateAnd a strip 8, wherein a third bearing plate strip 9 is arranged at the connecting position of the upper bearing bush 1 and the lower bearing bush 2 of the inner ring of the cylindrical bearing structure.
Preferably, the joints at the two ends of the bearing upper bushing 1 and the bearing lower bushing 2 are respectively and fixedly connected with the corresponding bearing bushing through a first stop copper bar 3 and a second stop copper bar 5, and the first stop copper bar 3 and the second stop copper bar 5 are respectively and fixedly connected with the corresponding bearing bushing through a first connecting piece 4 and a second connecting piece 6.
Preferably, the first bearing lath 7 is a lath with water grooves on two sides with a circumference accounting for 15 degrees, and the second bearing lath 8 is a lath without water grooves with a circumference accounting for 30 degrees.
Preferably, one side of the third bearing plate strip 9 is provided with a bevel edge, the other side is provided with a water tank, and the size of the bevel edge is matched with the sizes of the side edges of the first stop copper strip 3 and the second stop copper strip 5.
Preferably, the third bearing plate strips 9 are closely arranged on two sides of the first stop copper strip 3 and the second stop copper strip 5, the whole circumference of the first stop copper strip 3 and the third bearing plate strips 9 on two sides of the first stop copper strip is 15 degrees, and the whole circumference of the second stop copper strip 5 and the third bearing plate strips 9 on two sides of the second stop copper strip is 15 degrees.
Preferably, no water tank exists in the range of 30 DEG of the circumferential angle of the right bottom of the inner ring of the cylindrical bearing structure, and a plurality of water tanks are uniformly distributed at the rest positions according to 15 DEG of the circumferential angle.
Preferably, the first bearing batten 7, the second bearing batten 8 and the third bearing batten 9 are all made of reinforced fiber polymer composite materials, and the reinforced fiber polymer composite materials are specifically made of phenolic resin serving as a matrix and molybdenum disulfide and graphite serving as additives.
2. Design method of large high-temperature-resistant and high-wear-resistant water lubrication bearing
Based on the same inventive concept, the application also provides a design method of the large-scale high-temperature-resistant and high-wear-resistant water lubrication bearing, which comprises the following steps:
s1, determining the sizes of an upper bearing bush and a lower bearing bush according to the structural size of a ship and the size of a stern shaft, wherein the sizes comprise a bush length L, a bush outer diameter D and a bush inner diameter D;
s2, determining allowable depth h and interval circumferential angle theta of a water tank of the inner ring of the bearing according to the sizes of the upper bushing and the lower bushing of the bearing;
s3, carrying out abrasion resistance partitioning on an inner ring of the bearing structure along the circumferential direction according to the abrasion resistance test result of the water lubrication bearing;
and S4, arranging bearing strips with corresponding sizes according to the wear resistance partition.
Wherein, the allowable depth h of the water tank is calculated as follows:
h＝0.0086d+3.5
the interval circumference angle theta has the following calculation formula:
θ＝360°×(D-d)/L
further, the wear-resistant performance partition specifically includes: the bearing structure is characterized in that the range of the circumferential angle 30 degrees at the right bottom of the inner ring of the bearing structure is a strong abrasion zone, the joint of the upper bearing bush and the lower bearing bush is a medium abrasion zone, and the rest positions of the inner ring of the bearing structure are weak abrasion zones.
Compared with the prior art, the application has the following main advantages:
1. the bearing bush inner ring is formed by assembling three bearing battens with different sizes, and the arrangement positions of the bearing battens with different sizes are designed according to the actual load condition of the water lubrication bearing of the large-scale ship, so that the antifriction, wear resistance and cooling performance of the water lubrication bearing can be effectively ensured, and the requirements of the large-scale ship on high temperature resistance and high wear resistance of the water lubrication bearing under extreme working conditions such as sediment environment and the like are met;
2. the bearing lath adopts a reinforced fiber polymer composite material based on a phenolic resin matrix and added with molybdenum disulfide and graphite as additives, the compression strength of the reinforced fiber polymer composite material is up to 157MPa, the wet friction coefficient is 0.18, the Brinell hardness is 35, and the phase transition temperature is not generated within the range of 0-200 ℃;
3. the water lubrication bearing structure has a certain self-lubricating function, is suitable for a low-speed working condition from the lowest rotating speed of a large-scale shaft system to 20r/min and a heavy-load working condition with the maximum specific pressure of 0.8MPa, can be suitable for a 60 ℃ seawater temperature environment, can be used in all sea areas including an Arabian bay sea area (high Wen Haiyu) globally, and has good self wear resistance and better protection effect on a shaft sleeve when the friction pair is formed by the water lubrication bearing and the ZCuSn10Zn2 shaft sleeve material.
Drawings
FIG. 1 is a front view of a large high temperature resistant, high wear resistant water lubricated bearing in accordance with an embodiment of the present application;
FIG. 2 is a side cross-sectional view of a large high temperature resistant, high wear resistant water lubricated bearing in accordance with an embodiment of the present application;
FIG. 3 is a flow chart of a method of designing a water lubricated bearing in accordance with an embodiment of the present application.
In the figure: 1. a bearing upper bushing; 2. a bearing lower bushing; 3. a first stop copper bar; 4. a second stop copper bar; 5. a third stop copper bar; 6. a fourth stop copper bar; 7. a first bearing strip; 8. a second bearing plate strip; 9. a third bearing strip; 10. a stop ring.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. In addition, the technical features of the embodiments of the present application described below may be combined with each other as long as they do not collide with each other.
It should be noted that each step/component described in the present application may be split into more steps/components, or two or more steps/components or part of operations of the steps/components may be combined into new steps/components, according to the implementation needs, to achieve the object of the present application.
In a first embodiment, the present embodiment provides a large-sized high temperature resistant and high wear resistant water lubricated bearing, which mainly comprises main components such as a bearing upper bushing, a bearing lower bushing, a bearing lath, a stop copper bar, a stop ring, and the like.
The main characteristics are as follows:
1) The compression strength of the bearing bush material is up to 157MPa, and the wet friction coefficient is 0.18;
2) The bearing bush material has no phase transition temperature in the range of 0-200 ℃ and stable thermal property;
3) The Brinell hardness of the bearing bush material is 35;
4) The application adopts a structural form that the water tank is not opened within the bottom 30 DEG, and the rest water tanks are uniformly distributed along the circumference according to 15 deg.
As shown in fig. 1-2, the bearing upper bush 1 and the bearing lower bush 2 are spliced into a cylindrical bearing structure, the end part of the cylindrical bearing structure is provided with a stop ring 10, and the inner ring of the cylindrical bearing structure is circumferentially provided with a plurality of circumferential occupation angles theta 1 The bottom of the inner ring of the cylindrical bearing structure is provided with a circumferential occupation angle theta 2 The inner ring of the cylindrical bearing structure is provided with a third bearing plate strip 9 at the joint of the bearing upper bushing 1 and the bearing lower bushing 2.
The two ends of the bearing upper bushing 1 and the bearing lower bushing 2 are fixedly connected through a first stop copper bar 3 and a second stop copper bar 5 respectively, and the first stop copper bar 3 and the second stop copper bar 5 are fixedly connected with the corresponding bearing bushing through a first connecting piece 4 and a second connecting piece 6 respectively.
Further, the first bearing lath 7 is specifically a water trough lath with two sides with a circumference accounting for 15 degrees, and the second bearing lath 8 is specifically a water trough-free lath with a circumference accounting for 30 degrees.
Furthermore, one side of the third bearing plate strip 9 is provided with a bevel edge, the other side is provided with a water tank, and the size of the bevel edge is matched with the sizes of the side edges of the first stop copper strip 3 and the second stop copper strip 5.
Furthermore, the third bearing plate strips 9 are closely arranged on two sides of the first stop copper strip 3 and the second stop copper strip 5, the whole circumference of the first stop copper strip 3 and the third bearing plate strips 9 on two sides of the first stop copper strip is 15 degrees, and the whole circumference of the second stop copper strip 5 and the third bearing plate strips 9 on two sides of the second stop copper strip is 15 degrees.
Furthermore, no water tank exists in the range of 30 DEG of the circumferential angle of the right bottom of the inner ring of the cylindrical bearing structure, and a plurality of water tanks are uniformly distributed at the rest positions according to 15 DEG of the circumferential angle.
Furthermore, the first bearing lath 7, the second bearing lath 8 and the third bearing lath 9 are made of reinforced fiber polymer composite materials, and the reinforced fiber polymer composite materials are specifically made of phenolic resin serving as a matrix and molybdenum disulfide and graphite serving as additives.
Based on the same inventive concept, the second embodiment further provides a design method of the large-scale high-temperature-resistant and high-wear-resistant water lubrication bearing, as shown in fig. 3, which specifically includes the following steps:
s1, determining the sizes of an upper bearing bush and a lower bearing bush according to the structural size of a ship and the size of a stern shaft, wherein the sizes comprise a bush length L, a bush outer diameter D and a bush inner diameter D;
s2, determining allowable depth h and interval circumferential angle theta of a water tank of the inner ring of the bearing according to the sizes of the upper bushing and the lower bushing of the bearing;
s3, carrying out abrasion resistance partitioning on an inner ring of the bearing structure along the circumferential direction according to the abrasion resistance test result of the water lubrication bearing;
and S4, arranging bearing strips with corresponding sizes according to the wear resistance partition.
Wherein, the allowable depth h of the water tank is calculated as follows:
h＝0.0086d+3.5
the interval circumference angle theta has the following calculation formula:
θ＝360°×(D-d)/L
further, the wear-resistant performance partition specifically includes: the bearing structure is characterized in that the range of the circumferential angle 30 degrees at the right bottom of the inner ring of the bearing structure is a strong abrasion zone, the joint of the upper bearing bush and the lower bearing bush is a medium abrasion zone, and the rest positions of the inner ring of the bearing structure are weak abrasion zones.
Furthermore, the non-detailed description of the present application is the same as or implemented by the prior art.
To sum up:
1. the bearing bush inner ring is formed by assembling three bearing battens with different sizes, and the arrangement positions of the bearing battens with different sizes are designed according to the actual load condition of the water lubrication bearing of the large-scale ship, so that the antifriction, wear resistance and cooling performance of the water lubrication bearing can be effectively ensured, and the requirements of the large-scale ship on high temperature resistance and high wear resistance of the water lubrication bearing under extreme working conditions such as sediment environment and the like are met;
2. the bearing lath adopts a reinforced fiber polymer composite material based on a phenolic resin matrix and added with molybdenum disulfide and graphite as additives, the compression strength of the reinforced fiber polymer composite material is up to 157MPa, the wet friction coefficient is 0.18, the Brinell hardness is 35, and the phase transition temperature is not generated within the range of 0-200 ℃;
3. the water lubrication bearing structure has a certain self-lubricating function, is suitable for a low-speed working condition from the lowest rotating speed of a large-scale shaft system to 20r/min and a heavy-load working condition with the maximum specific pressure of 0.8MPa, can be suitable for a 60 ℃ seawater temperature environment, can be used in all sea areas including an Arabian bay sea area (high Wen Haiyu) globally, and has good self wear resistance and better protection effect on a shaft sleeve when the friction pair is formed by the water lubrication bearing and the ZCuSn10Zn2 shaft sleeve material.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the application and is not intended to limit the application, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the application are intended to be included within the scope of the application.

Claims (10)

1. The utility model provides a large-scale high temperature resistant, high wear-resisting water lubricated bearing, its characterized in that includes bearing upper bushing (1) and bearing lower bushing (2), cylindrical bearing structure is spliced into to bearing upper bushing (1) and bearing lower bushing (2), the tip of cylindrical bearing structure is equipped with stop ring (10), the inner circle of cylindrical bearing structure is equipped with a plurality of circumference and occupies angle theta along circumference 1 The bottom of the inner ring of the cylindrical bearing structure is provided with a circumferential occupation angle theta (7) 2 The inner ring of the cylindrical bearing structure is provided with a bearing upper lining (1) and a bearing lower lining (8)(2) The joint is provided with a third bearing plate strip (9).
2. The large high-temperature-resistant and high-wear-resistant water lubricated bearing according to claim 1, wherein the joints at two ends of the upper bearing bush (1) and the lower bearing bush (2) are fixedly connected through a first stop copper bar (3) and a second stop copper bar (5) respectively, and the first stop copper bar (3) and the second stop copper bar (5) are fixedly connected with the corresponding bearing bushes through a first connecting piece (4) and a second connecting piece (6) respectively.
3. A large high temperature resistant, highly wear resistant water lubricated bearing according to claim 1, wherein the first bearing strip (7) is in particular a two sided grooved strip with a circumference of 15 ° and the second bearing strip (8) is in particular a non grooved strip with a circumference of 30 °.
4. A large high temperature resistant, highly wear resistant water lubricated bearing according to claim 2, wherein one side of the third bearing strip (9) is beveled and the other side is grooved, and the beveled dimension is adapted to the side dimensions of the first (3) and second (5) stop bars.
5. The large-scale high-temperature-resistant and high-wear-resistant water lubricated bearing according to claim 4, wherein the third bearing plate strips (9) are closely arranged on two sides of the first stop copper strip (3) and the second stop copper strip (5), the whole circumference of the first stop copper strip (3) and the third bearing plate strips (9) on two sides of the first stop copper strip is 15 degrees, and the whole circumference of the second stop copper strip (5) and the third bearing plate strips (9) on two sides of the second stop copper strip is 15 degrees.
6. The large-scale high-temperature-resistant and high-wear-resistant water lubricated bearing according to claim 5, wherein the inner ring of the cylindrical bearing structure is free of water grooves within the range of 30 degrees of the circumferential angle of the right bottom, and a plurality of water grooves are uniformly distributed in the rest positions according to the circumferential angle of 15 degrees.
7. The large-scale high-temperature-resistant and high-wear-resistant water lubrication bearing according to claim 1 is characterized in that the first bearing lath (7), the second bearing lath (8) and the third bearing lath (9) are made of reinforced fiber polymer composite materials, wherein the reinforced fiber polymer composite materials are specifically made of phenolic resin serving as a matrix and molybdenum disulfide and graphite serving as additives.
8. A method of designing a large high temperature resistant, high wear resistant water lubricated bearing according to any one of claims 1 to 7, comprising the steps of:
s1, determining the sizes of an upper bearing bush and a lower bearing bush according to the structural size of a ship and the size of a stern shaft, wherein the sizes comprise a bush length L, a bush outer diameter D and a bush inner diameter D;
s2, determining allowable depth h and interval circumferential angle theta of a water tank of the inner ring of the bearing according to the sizes of the upper bushing and the lower bushing of the bearing;
s3, carrying out abrasion resistance partitioning on an inner ring of the bearing structure along the circumferential direction according to the abrasion resistance test result of the water lubrication bearing;
and S4, arranging bearing strips with corresponding sizes according to the wear resistance partition.
9. The method of claim 8, wherein the allowable depth h of the water tank is calculated as follows:
h＝0.0086d+3.5
the interval circumference angle theta has the following calculation formula:
θ＝360°×(D-d)/L
10. the design method according to claim 8, wherein the wear resistance partition is specifically: the bearing structure is characterized in that the range of the circumferential angle 30 degrees at the right bottom of the inner ring of the bearing structure is a strong abrasion zone, the joint of the upper bearing bush and the lower bearing bush is a medium abrasion zone, and the rest positions of the inner ring of the bearing structure are weak abrasion zones.
CN202310907299.8A 2023-07-21 2023-07-21 Large-sized high-temperature-resistant and high-wear-resistant water-lubricated bearing and design method thereof Pending CN117022631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310907299.8A CN117022631A (en) 2023-07-21 2023-07-21 Large-sized high-temperature-resistant and high-wear-resistant water-lubricated bearing and design method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310907299.8A CN117022631A (en) 2023-07-21 2023-07-21 Large-sized high-temperature-resistant and high-wear-resistant water-lubricated bearing and design method thereof

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Publication Number Publication Date
CN117022631A true CN117022631A (en) 2023-11-10

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