CN105882929B - Shaftless propeller water lubrication pushes away-diameter joint bearing - Google Patents

Shaftless propeller water lubrication pushes away-diameter joint bearing Download PDF

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Publication number
CN105882929B
CN105882929B CN201610312733.8A CN201610312733A CN105882929B CN 105882929 B CN105882929 B CN 105882929B CN 201610312733 A CN201610312733 A CN 201610312733A CN 105882929 B CN105882929 B CN 105882929B
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China
Prior art keywords
bearing
diameter joint
water lubrication
pushes away
rubber layer
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CN201610312733.8A
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CN105882929A (en
Inventor
欧阳武
王建
梁兴鑫
刘正林
严新平
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GUANGZHOU HG MARINE Co.,Ltd.
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Wuhan University of Technology WUT
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H1/00Propulsive elements directly acting on water
    • B63H1/02Propulsive elements directly acting on water of rotary type
    • B63H1/12Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14Propellers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H23/00Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32Other parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H23/00Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32Other parts
    • B63H23/321Bearings or seals specially adapted for propeller shafts
    • B63H23/326Water lubricated bearings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H23/00Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32Other parts
    • B63H23/321Bearings or seals specially adapted for propeller shafts
    • B63H2023/325Thrust bearings, i.e. axial bearings for propeller shafts

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

The invention discloses a kind of Shaftless propeller water lubrications to push away diameter joint bearing, is mainly made of bear box (2), bearing shell (3) and thrust collar (4), wherein:Bearing shell (3) is evenly distributed on bear box (2) inner wall, and it is installed on using trip bolt on the outer wall of bear box (2), one sink is set between adjacent bearing shell, and the sink is unobstructed, for water flowing to achieve the purpose that lubrication and cooling bearing;The interaction face of bear box (2) inner wall, bearing shell (3) and thrust collar (4) is the conical surface, and the taper of three is identical.Water lubrication of the present invention, which pushes away diameter joint bearing, has simple in structure, parts few and high reliability, be suitable for variable parameter operation, thrust disc tilts and the naval vessel more demanding to damping property and load-carrying properties on.

Description

Shaftless propeller water lubrication pushes away-diameter joint bearing
Technical field
The invention belongs to marine propeller field, more particularly to a kind of can hold simultaneously for shaftless wheel rim driving propeller The water-lubricated slide bearing of axial force and radial load is carried on a shoulder pole, that is, so-called Shaftless propeller water lubrication pushes away-diameter joint bearing.
Background technology
Traditional marine shafting propulsion system because its is complicated, occupied space is big, transmission efficiency is limited and vibration and The shortcomings of noise abatement is difficult causes people that sight is gradually turned to more advanced shaftless wheel rim driving propulsion system (referred to as " Shaftless propeller ").Motor stator is embedded in by the Shaftless propeller using propeller-motor-rudder-bearing integratedization design Into conduit, blade is connected in rotor inner wall, two ends of rotor passes through water lubriucated bearing system restriction;With compact-sized, ship The remarkable advantages such as cabin occupied space is few, propulsive efficiency is high, vibration noise is low, become the model of marine propuision system of new generation.
Water lubriucated bearing system is mounted in the conduit of Shaftless propeller, is used to support rotor blade weight and is transmitted blade Thrust.The power of Shaftless propeller product cannot still reach the demand of the main thruster as large ship and naval vessels, axis at present It is one of the key technology bottleneck for limiting shaftless propulsion system high-power to hold.Main difficulty is:On the one hand, the viscosity of water is low Cause bearing load carrying capacity naturally weaker;On the other hand, in order to reduce water resistance, it is desirable that conduit is thin as possible, and bearing is caused to be installed Narrow space.Bearing shell is narrow, certainly will reduce bearing capacity.Moreover, marine propeller is often operated under the conditions of variable working condition, difference turns The performance of the lower fixed pad bearing of speed is difficult to optimal always.Therefore, under narrow installation space and harsh working environment, design Shaftless propeller water lubriucated bearing that is a kind of compact-sized and haveing excellent performance is highly desirable.
United States Patent (USP)《Bearing structure and screw provided with a bearing structure of this type》(patent No. US 20110142693A1) devises tilting-pad radial for Shaftless propeller Bearing and tilting thrust bearing, the journal bearing and thrust bearing of the invention are absolute construction, and its tilting bush structure compared with Complexity certainly will influence the integrated level and lubricating reliability of Shaftless propeller.In sliding bearing field, have several TYPICAL COMBINED axis It holds, including:Conventional combination bearing, conical surface bearing and spherical bearing etc..Conventional combination bearing is by existing journal bearing and to push away Power bearing is installed together, and axle sleeve and thrust disc are integrally formed, and this bearing integrated level is not high, structure is more complex, and is not suitable for In Shaftless propeller;The general conical surface and spherical bearing are using fixed watt, it is difficult to be suitable for the variable working condition work of marine propuision system Make demand.Chinese patent《It can bear the water lubricating rubber alloy bearing of axial load》(patent No. 201110277820.1) is by rubber Glued gold is adhered on the ring flange of water lubrication radial direction rubber alloy bearing one end, is come by fan-shaped rubber block deformation on ring flange Axial load is born, but the axial carrying capacity of this structure is limited, and journal bearing and thrust bearing are in 90 °, are influenced in water Silt circulates.
It is opposite and this, the present invention will flexibly support tilting thrust bearing possibly tapered, can bear the same of axial force When, moreover it is possible to bear certain radial load.
Invention content
The technical problem to be solved by the present invention is to:In order to overcome, Shaftless propeller sliding bearing installation space is narrow, passes The fixed pad bearing of system can not achieve the deficiency that bearing capacity is optimal and effectiveness in vibration suppression is poor under variable working condition, and providing one kind can be simultaneously Axial force and radial load are undertaken, and the tiltable compact-sized Shaftless propeller water profit of tile fragment is realized using non-equivalent-thickness rubber layer Push to slide-diameter joint bearing.
The present invention intends using following technical scheme to solve above-mentioned technical problem:
Shaftless propeller water lubrication provided by the invention pushes away-diameter joint bearing, mainly by bear box, bearing shell and thrust collar Composition, wherein:Bearing shell is evenly distributed on bear box inner wall, and the outer wall of bear box is installed on using trip bolt On, a sink is set between adjacent bearing shell, and the sink is unobstructed, for water flowing to achieve the purpose that lubrication and cooling bearing;Axis The interaction face for holding inner walls, bearing shell and thrust collar is the conical surface, and the taper of three is identical.
The bearing shell is multi-layer compound structure, mainly lower watt of base, rubber layer, upper Wa Ji and the tiling by being sequentially connected Layer composition.
The lower watt of base, bottom surface are threaded hole, are blind hole;Its bottom is tapered, in taper and bear box Wall taper is identical and axial length is consistent, it is desirable that the two working face fits closely.
The rubber layer is combined closely by the lower Wa Ji and upper watt base of sulfuration process and stainless steel material, three Between do not need connector.
The tiling layer uses water lubrication material, the upper table that the lower surface of the tiling layer passes through bonding way and upper watt base Face is connected, or is connected using dove tail, and gap portion, which uses, is suitable for underwater strength glue sticking.
The water lubrication material is rubber, high molecular material, impregnated graphite or ceramics.
The tiling layer upper surface is tapered, and taper is identical as bear box inner wall taper.
The structure of the lower watt of base changes with the structure of rubber layer, realizes the non-uniform thickness structure type of rubber layer, makes axis Rubber layer inhomogeneous deformation self-adjustable inclination can be utilized watt in operation process, form hydrodynamic lubrication.
Thrust collar working face corresponding with tiling layer upper surface is tapered, and the two taper is identical.
Above-mentioned Shaftless propeller water lubrication provided by the invention pushes away-diameter joint bearing, and purposes is:The bearing is to shaking Moving noise requires the application in high naval vessel.
The present invention has the advantages that following main compared with prior art:
1. by water lubrication tilting thrust bearing possibly tapered, while bearing axial force, certain radial direction can be also born Power, overcomes that traditional radial direction and thrust joint bearing volume be big and complex structure and other problems, can better meet shaftless propulsion The requirements of installation space of device harshness.
2. bearing shell uses multi-layer compound structure:Rubber layer between tiling layer, upper Wa Ji and lower watt of base, two watts of bases.It utilizes Non- equivalent-thickness rubber layer deforms difference to realize that bearing shell changes with operating mode and adaptively tilts, and forms optimal carrying moisture film, overcomes biography The limitation of the fixed pad bearing optimal carrying under single operating mode of system, and there is optimal carrying when variable working condition, particularly suitable for Naval vessel etc. is often in the occasion of variable working condition.
3. the rubber layer of bearing tile can absorb the vibrational energy of blade generation and the self-excited vibration energy of tile fragment, reach To the purpose of vibration damping and vibration isolation.
4. the radial carrying of conventional radial and thrust joint bearing and thrust bearing part can cause to contain mud in 90 ° of installations Husky flow leads to unsmooth and leads to bearing wear, and the shape face of bearing of the present invention is taper, eliminates bearing arrangement and circulates to silt and hinders, The abrasion of tiling layer can be slowed down, and then promote bearing service life.
Description of the drawings
Fig. 1 is to push away-diameter joint bearing assembling schematic diagram.
Fig. 2 is to push away-the structural schematic diagram of diameter joint bearing axial cross section.
Fig. 3 is the schematic diagram of the first bearing shell example structure.
Fig. 4 is the schematic diagram of second of bearing shell example structure.
In figure:1. bolt unthreaded hole;2. bear box;3. bearing shell;Lower watt of base of 3-1.;3-2. rubber layer;Upper watt of base of 3-3.;3- 4. tiling layer;4. thrust collar;5. trip bolt;6. threaded hole.
Specific implementation mode
The invention discloses a kind of Shaftless propeller water lubrications to push away-diameter joint bearing, mainly by bear box, thrust collar, The compositions such as elastic tilting bush component and trip bolt.It is mainly characterized by:Bearing axial cross section is tapered, and taper is larger;Fan Shape elasticity tilting bush component is evenly distributed in bear box inner wall, and the gap between adjacent bearing shell forms sink;Bearing shell is multilayer Composite construction, by the rubber layer between high molecular material tiling layer, the upper Wa Ji of stainless steel material and lower watt of base and two watts of bases Composition, lower Wa Ji and elastic rubber layer are non-uniform thickness structure.
With reference to embodiment and attached drawing, the invention will be further described, but does not limit the present invention.
Shaftless propeller water lubrication provided by the invention pushes away-diameter joint bearing, and structure is as shown in Figure 1, mainly by bearing Shell 2, bearing shell 3 and thrust collar 4 form, wherein:It is machined with bolt unthreaded hole 1 on 2 outer wall of bear box, is countersunk head through-hole;Bearing shell 3 Equipped with threaded hole 6, it is mounted on the outer wall of bear box 2 by threaded hole 6 and bolt unthreaded hole 1 using trip bolt 5.Cartridge housing The interaction face of 2 inner wall of body, bearing shell 3 and thrust collar 4 is the conical surface, and the taper of three is identical.
The bearing shell 3 is multi-layer compound structure, as shown in Fig. 2, mainly by lower watt of base 3-1, rubber layer 3-2, Shang watt base 3-3 It is formed with tiling layer 3-4, the lower watt of bottom surface base 3-1 is threaded hole 6, is blind hole.
The bottom of lower watt of base 3-1 of the bearing shell 3 is tapered, and taper is identical as 2 inner wall taper of bear box and axial long Degree is consistent, it is desirable that the two working face fits closely.
The rubber layer 3-2 of the bearing shell 3 is tight by lower watt of base 3-1 of sulfuration process and stainless steel material and upper watt base 3-3 Close combination does not need other connectors between three.Sulfuration process is the prior art, mainly rubber macromolecule under heating with Crosslinking agent sulphur chemically reacts, and crosslinking becomes space network, is bonded in the lower watt of upper surface base 3-1 and upper watt base 3-3 On lower surface.Specific sulfuration process can refer to document (《Water lubriucated bearing rubber vulcanization process system optimization method is studied》, Cui Hong It is refined).
The tiling layer 3-4 is using water lubrication material, such as rubber, high molecular material, impregnated graphite or ceramics etc., this watt The lower surface of face layer is connected by bonding way with the upper surface of upper watt base 3-3, or use dove tail connection, clearance portion Divide using suitable for underwater strength glue sticking.
The upper surfaces tiling layer 3-4 are tapered, and taper is identical as 2 inner wall taper of bear box.
The structure of the lower watt of base 3-1 can change according to the structure of rubber layer 3-2, realize the non-uniform thickness knots of rubber layer 3-2 Configuration formula makes bearing shell 3 that can utilize rubber layer 3-2 inhomogeneous deformation self-adjustable inclinations in operation process, forms hydrodynamic lubrication.
The bearing shell 3 has multiple, is evenly distributed on 2 inner wall of bear box, a sink is arranged between adjacent bearing shell, for Water flowing is to achieve the purpose that lubrication and cooling bearing.The lubrication water of traditional bearing can be because of thrust bearing and bearing support It arranges and is stopped, and the sink of the present invention is unobstructed, facilitates silt to circulate, this is even more important for aircraft.
The working face corresponding with the tiling upper surfaces layer 3-4 of the thrust collar 4 is tapered, and the two taper is identical.
The present invention in order to make to push away-diameter joint bearing can preferably generate carrying moisture film at runtime, i.e. bearing shell is being exchanged work Itself can adaptively be tilted to form wedge shape space under the conditions of condition, to preferably form hydrldynamic pressure lubrication, now to bearing shell Part proposes following several specific embodiments:
1. as shown in figure 3, the wherein lower surface of rubber layer 3-2 and the upper surface of lower watt of base 3-1 is plane.Rubber layer 3- 2 lower surfaces are not equal to 90 ° with the space angle that the perpendicular for crossing bearing axis is formed, and along axis direction of rotation rubber layer 3- 2 is more and more thinner.Rubber layer design parameter can optimize to obtain according to actual condition, and optimization aim is maximum load-carrying capacity.
2. as shown in figure 4, wherein the lower surfaces rubber layer 3-2 are arc surface, the two is closely connected also through sulfuration process, edge It is more and more thinner axis direction of rotation rubber layer 3-2.Arc surface parameter should optimize to obtain according to actual condition, and optimization aim is maximum Bearing capacity.
Shaftless propeller water lubrication provided by the invention pushes away-diameter joint bearing (abbreviation bearing), and the course of work is as follows:
Bearing is under water, and blade generates axial propulsive force, the axial direction propulsive force and propeller when Shaftless propeller works Gravity acts on bearing simultaneously.When blade rotates, thrust collar 4 rotates therewith, when reaching certain rotating speed, non-uniform thickness structure Rubber layer 3-2 generates inhomogeneous deformation under force effect so that Shang watt base 3-3 and tiling layer 3-4 is tilted therewith, tiling layer 3-4 Wedge shape space is formed between thrust collar;Lubrication water generates dynamic pressure film force in wedge shape space, the film force axially with It after radial direction is decomposed, is balanced respectively with axial load and radial load, realizes lubrication and bearing;When variable working condition, rubber layer 3-2 Deformation changes, and then the inclination angle of change Shang watt base 3-3 and tiling layer 3-4, until reaching mechanical balance again.Bearing working When, the vibration of blade is transmitted to by liquid film on bearing shell, and rubber layer 3-2 absorbs vibrational energy, plays the effect of vibration damping and vibration isolation.
Shaftless propeller water lubrication provided by the invention pushes away-diameter joint bearing, is all had most in a condition range Excellent bearing capacity improves bearing variable working condition performance, is particularly suitable for naval vessel etc. and requires vibration noise high occasion.

Claims (9)

1. a kind of Shaftless propeller water lubrication pushes away-diameter joint bearing, it is characterized in that mainly by bear box(2), bearing shell(3)With push away Power head(4)Composition, wherein:Bearing shell(3)It is evenly distributed on bear box(2)On inner wall, and axis is installed on using trip bolt Hold shell(2)Outer wall on, a sink is set between adjacent bearing shell, the sink is unobstructed, for water flowing with reach lubrication and it is cold But the purpose of bearing;Bear box(2)Inner wall, bearing shell(3)And thrust collar(4)Interaction face be the conical surface, and three Taper is identical;Bearing shell is multi-layer compound structure, by high molecular material tiling layer, the upper Wa Ji and stainless steel material of stainless steel material Lower watt of base and two watts of bases between rubber layer composition, lower Wa Ji and rubber layer are non-uniform thickness structure, and rubber layer is elasticity Rubber layer;The structure of lower watt of base changes with the structure of rubber layer, realizes the non-uniform thickness structure type of rubber layer, makes bearing shell(3) Rubber layer can be utilized in operation process(3-2)Inhomogeneous deformation self-adjustable inclination forms hydrodynamic lubrication.
2. Shaftless propeller water lubrication according to claim 1 pushes away-diameter joint bearing, it is characterised in that the bearing shell (3)The mainly lower watt of base by being sequentially connected(3-1), rubber layer(3-2), Shang watt base(3-3)With tiling layer(3-4)Composition.
3. Shaftless propeller water lubrication according to claim 2 pushes away-diameter joint bearing, it is characterised in that the lower watt of base (3-1), bottom surface is threaded hole(6), it is blind hole;Its bottom is tapered, taper and bear box(2)Inner wall taper is identical And axial length is consistent, it is desirable that the two working face fits closely.
4. Shaftless propeller water lubrication according to claim 2 pushes away-diameter joint bearing, it is characterised in that the rubber layer (3-2)Pass through lower watt of base of sulfuration process and stainless steel material(3-1)With upper watt base of stainless steel material(3-3)It combines closely, Connector is not needed between three.
5. Shaftless propeller water lubrication according to claim 2 pushes away-diameter joint bearing, it is characterised in that the tiling layer (3-4)Using water lubrication material, the lower surface of the tiling layer passes through bonding way and upper watt base(3-3)Upper surface be connected, or Person is connected using dove tail, and gap portion, which uses, is suitable for underwater strength glue sticking.
6. Shaftless propeller water lubrication according to claim 5 pushes away-diameter joint bearing, it is characterised in that the water lubrication Material is rubber, impregnated graphite or ceramics.
7. Shaftless propeller water lubrication according to claim 2 pushes away-diameter joint bearing, it is characterised in that the tiling layer (3-4)Upper surface is tapered, taper and bear box(2)Inner wall taper is identical.
8. Shaftless propeller water lubrication according to claim 2 pushes away-diameter joint bearing, it is characterised in that the thrust collar (4)With tiling layer(3-4)The corresponding working face in upper surface is tapered, and the two taper is identical.
9. pushed away according to Shaftless propeller water lubrication described in any claim in claim 1 to 8-purposes of diameter joint bearing, It is characterized in that the bearing is applied in requiring vibration noise high naval vessel.
CN201610312733.8A 2016-05-12 2016-05-12 Shaftless propeller water lubrication pushes away-diameter joint bearing Active CN105882929B (en)

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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
CN107725582A (en) * 2017-11-16 2018-02-23 北京海月星科技有限公司 Water lubriucated bearing and transmission device
CN108506333B (en) * 2018-04-08 2020-03-31 清华大学 Edge-covered water lubrication thrust tile with heat transient deformation resistance
CN108622342B (en) * 2018-06-07 2020-06-19 武汉理工大学 Multi-stage separable unmanned underwater vehicle
CN109899393A (en) * 2019-03-20 2019-06-18 武汉理工大学 A kind of water lubrication tail bearing with lath detachable structure
CN112307571B (en) * 2020-07-08 2021-06-29 重庆大学 Radial thrust integrated water-lubricated bearing and self-adaptive mixed lubrication analysis method thereof
JP7535969B2 (en) * 2021-03-31 2024-08-19 三菱重工業株式会社 Fluid Film Bearings
CN114475984B (en) * 2021-12-24 2023-07-14 宜昌测试技术研究所 UUV broadside high-power propulsion motor installs and vibration isolation device fast
CN114572373B (en) * 2022-03-21 2022-12-13 浙江海洋大学 High-stability ship propulsion device based on hydraulic thrust bearing
CN115111267B (en) * 2022-06-08 2024-07-05 华能花凉亭水电有限公司 Mixed-flow turbine water guide bearing structure
CN115163658B (en) * 2022-07-22 2024-08-09 中国华能集团清洁能源技术研究院有限公司 Sliding main bearing, assembling method thereof and wind turbine transmission system

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CN101334069B (en) * 2008-08-06 2010-12-15 重庆奔腾科技发展有限公司 Water lubrication rubber alloy bearing
CN102322476B (en) * 2011-09-19 2012-10-31 重庆大学 Tilting-pad water-lubricated rubber alloy bearing
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Effective date of registration: 20200806

Address after: 519000 No.77 B, Xieshi Road, Panyu District, Guangzhou City, Guangdong Province

Patentee after: GUANGZHOU HG MARINE Co.,Ltd.

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Denomination of invention: Shaftless thruster water lubricated thrust radial joint bearing

Granted publication date: 20180911

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Registration number: Y2024980035164