CN201314335Y - Bearing bush for boat - Google Patents
Bearing bush for boat Download PDFInfo
- Publication number
- CN201314335Y CN201314335Y CNU2008202118578U CN200820211857U CN201314335Y CN 201314335 Y CN201314335 Y CN 201314335Y CN U2008202118578 U CNU2008202118578 U CN U2008202118578U CN 200820211857 U CN200820211857 U CN 200820211857U CN 201314335 Y CN201314335 Y CN 201314335Y
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- bearing
- bearing shell
- layer
- bearing bush
- ships
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Abstract
The utility model relates to a bearing bush for a boat, in particular to a bearing bush. The utility model aims to solve the problem that the conventional bearing for the boat initiates a supporting rotor to generate vibration and air noise during the meshing process of a gear. An annular groove is formed on the outer surface of a bearing bush body; a damping outer sleeve layer is sleeved on the annular groove; four through holes are uniformly distributed on a wearable inner bushing layer along the axial direction; the wearable inner bushing layer is mounted on the inner surface of the bearing bush body; four oil filler holes are formed on the bearing bush body; the four oil filler holes and the four through holes are corresponding in position; and each oil filler hole is communicated with each corresponding through hole. The transmission noise of the bearing is reduced by arranging the damping layer on the outer surface of the bearing bush body and arranging a wearable layer on the inner surface of the bearing bush body, so as to effectively control the vibration noise of the bearing and provide a feasible measure for improving the low noise performance of a gear transmission device for the boat, thereby ensuring the safe and reliable operation of the boat.
Description
Technical field
The utility model relates to a kind of bearing shell.
Background technique
Territory, coastal waters and continental river ships and light boats often adopt conventional circular journal bearing, because conventional bearing very likely causes the vibration of supporting rotor in the gear engagement process, conventional bearing is that the rubber-like mechanical part is again the good conductor of various forms of vibrations, with vibration along the surface of shell of ships and light boats retarder with output shaft is propagated outward and constantly with the surrounding atmosphere exciting, in air, send sound wave, vibration that it is higher and airborne noise are not only damaged the healthy of passenger and crewman, also ships and light boats self instrument and equipment and safe and reliable operation thereof are produced a very large impact, and reduced the stationarity and the comfortable usability of ships and light boats.Conventional bearing causes supporting rotor in the gear engagement process vibration noise is one of the main noise source of ships and light boats retarder often, the current important indicator that has become evaluation ships and light boats quality of product quality of low noise.Therefore, bearing is caused supporting rotor in the gear engagement process vibration noise is implemented the important subject that effective control has become ships and light boats field in the world today.Bearing shell is a member the most key in the bearing, therefore will be reduced in to cause supporting rotor generation vibration and airborne noise in the gear engagement process, and the structure of bearing shell and material thereof are particularly important.
The model utility content
The utility model causes supporting rotor generation vibration and airborne noise in order to solve ships and light boats with conventional bearing in the gear engagement process, and then a kind of ships and light boats bearing shell is provided.
The utility model is to solve the problems of the technologies described above the technological scheme of taking to be: ships and light boats are made up of bearing shell main body, damping outer sleeve layer and wear-resistant liner tube layer with bearing shell, have annular groove on the outer surface of described bearing shell main body, described damping outer sleeve layer is sleeved on the annular groove, uniformly vertically on the wear-resistant liner tube layer have four through holes, wear-resistant liner tube layer is installed on the internal surface of bearing shell main body, have four oil holes on the bearing shell main body, four oil holes are corresponding with the position of four through holes, and each oil hole is communicated with corresponding through hole.
The beneficial effects of the utility model are: the utility model is provided with damping layer, is provided with the rotational noise that wearing layer (wear-resistant liner tube layer) reduces (hydrodynamic slip) bearing at the internal surface of bearing shell main body by the outer surface in the bearing shell main body, the utility model is applied in the bear vibration noise is effectively controlled, and provide feasible improvement measure for ships and light boats gear drive low-noise performance, improve the low-noise performance of ships and light boats gear reducer and the stationarity and the comfortable usability of ships and light boats, guarantee the ships and light boats safe and reliable operation.Application of the present utility model makes ships and light boats be better than common circular journal bearing with the dynamic performance of Oil Wedge Hydrodynamic Bearing under the high speed light loading condition, the static properties of using Oil Wedge Hydrodynamic Bearing of the present utility model can satisfy the job requirement of ships and light boats gear reducer, in " rotor-supporting-basis " this system, owing to uniformly vertically on the wear-resistant liner tube layer have a plurality of through holes that communicate with oil hole, will play more useful effect to rotor stable so that use the oil film dynamic response of bearing of the present utility model.
Description of drawings
Fig. 1 is a plan view of the present utility model, and Fig. 2 is the H-H sectional view of Fig. 1, and Fig. 3 is the E-E sectional view of Fig. 2, and Fig. 4 is the worm's eye view of Fig. 1.
Embodiment
Embodiment one: as shown in Figure 1, the described ships and light boats of present embodiment use bearing shell by bearing shell main body 1, damping outer sleeve layer 2 and wear-resistant liner tube layer 3 are formed, have annular groove 1-1 on the outer surface of described bearing shell main body 1, described damping outer sleeve layer 2 is sleeved on the annular groove 1-1, uniformly vertically on the wear-resistant liner tube layer 3 have four through hole 3-1, wear-resistant liner tube layer 3 is installed on the internal surface of bearing shell main body 1, have four oil holes 4 on the bearing shell main body 1, four oil holes 4 are corresponding with the position of four through hole 3-1, and each oil hole 4 is communicated with corresponding through hole 3-1.
Embodiment two: as shown in Figure 1, the described damping outer sleeve of present embodiment layer 2 is high-performance iron-based alloy damping outer sleeve layers.The noise damping of high-performance iron-based damping alloy is higher 10 times than High Tensile Steel Tube, and its noise damping is obviously better than alloy ZSnSb11Cu6, and its high damping coefficient comprises very large-scale stress amplitude.Other composition and annexation are identical with embodiment one.
Embodiment three: as shown in Figure 1, the described wear-resistant liner tube of present embodiment layer 3 is Babbitt wear-resistant liner tube layers 3.The antiwear characteristic of Babbitt is good, improves the oil film dynamic response, and the oil film dynamic response of bearing will play more useful effect to rotor stable.Other composition and annexation are identical with embodiment one or two.
Work base reason:
Owing to adopt the carburizing hardened face gear to improve the bearing capacity of gear, the radial journal bearing load of gear is increased.The significant parameter of symbol bearing temperature rise is the product (PV) of its specific pressure and axle journal linear velocity, novel watercraft is all higher with the PV value of gear reducer high regime bearing, need select the novel alloy material that has better heat resistance than alloy ZSnSb11Cu6 commonly used for use, through verification experimental verification, the bearing film alarm temperature of novel alloy material can bring up to 130 ℃ still can stablize, operation safely and reliably, break through the limit value of 110 ℃ of conventional alloys.The noise damping of high-performance iron-based damping alloy is higher 10 times than High Tensile Steel Tube, and its noise damping is than alloy ZSnSb11Cu6 obviously good (reducing 1-r6dB), and its high damping coefficient comprises very large-scale stress amplitude.Alloy contains nickel and manganese, also contains Trace Aluminum and silicon, and it has good weldability, mechanical strength and processability, and this is that traditional damping alloy lacks.Test result shows, the intensity and the ductility of novel high-performance iron-based damping alloy are suitable with Common Straight Carbon Steel, also has higher corrosion resistance simultaneously, can not produce poisonous gas, its price is more cheap than common damping material, especially be suitable for low frequency and be higher than the normal temperature scope using, its noise loss coefficient ratio carbon steel is high more than 10 times, and its heavy-gauge sheeting, tubing also have good noise damping effect.For eliminating conventional bearing very likely causes supporting rotor in the gear engagement process vibration, adopted segmentation bearing shell type (on the wear-resistant liner tube layer uniform vertically have a plurality of through holes that communicate with oil hole) Oil Wedge Hydrodynamic Bearing during design, the dynamic performance that segmentation bearing shell profile shaft holds under the high speed light loading condition is better than circular journal bearing, if the static properties that segmentation bearing shell profile shaft holds can satisfy the job requirement of ships and light boats gear reducer, in " rotor-supporting-basis " this system, the oil film dynamic response of segmentation bearing shell type (on the wear-resistant liner tube layer uniform vertically have a plurality of through holes that communicate with oil hole) bearing will play more useful effect to rotor stable.Safe and reliable for guaranteeing, except that the designing and calculating work improvement, also carry out and finished the experiment work that segmentation bearing shell profile shaft holds.Test is carried out under with the gear reducer operating conditions at the simulation ships and light boats, mainly is the load-carrying properties of test bearing, and purpose is the Security of the real ship use of checking, examines the design-calculated degree of reliability in addition.The damper mechanism of novel high-performance iron-based damping alloy is to absorb vibrational energy by the expansion of dislocation in the alloy and contraction, the method that adopts segmentation bearing shell type to add high-performance iron-based damping alloy layer reduces the Oil Wedge Hydrodynamic Bearing rotational noise, under China's condition of market economy of now, the important techniques economic value will be arranged, and provide feasible improvement measure for ships and light boats gear drive low-noise performance.Ships and light boats retarder output gearwheel front and back bearings adopts segmentation bearing shell type additional damping material vibration absorbing structure simple, compact, safe and reliable.
Radial journal bearing load franchise analysis before and after the ships and light boats retarder output gearwheel: the engaging force that radial journal bearing bears before and after the output gearwheel when being gearwheel gravity and transmitted power, stressed size and aspect effect the size and the structure of bearing.When the size of bearing and structure determine that the load that bearing bears (size and direction) has just had corresponding requirement after (being subjected to the restriction of general structure), if add the ability to bear that influence surpasses bearing, the bearing scaling loss even of will under abnormal condition, working.Gearwheel output flange end will be connected with tailing axle axle system, and misaligning or can give size of gearwheel output flange end affix and direction uncertain outer the load because of hull distortion (or distortion) causes shaft distortion when linking to each other, then influence the carrying condition of the forward and backward bearing of gearwheel, if outer load exceeds the ability to bear of bearing, will be unallowable.Therefore, in the scope that the forward and backward bearing performance of output gearwheel allows, by analytical calculation, try to achieve the permission difference of the forward and backward bearing load of output gearwheel, seek out to satisfy the outer load that is attached to output gearwheel output flange end of bearing working requirement, it is reality and necessary that tailing axle axle system is required with the centering of exporting the gearwheel flange.
Ships and light boats retarder output gearwheel front and back bearings adopts the method for segmentation bearing shell type composed of external damping layer to reduce vibration noise: specific pressure≤0.154MPa, the linear velocity 〉=30.8m/s of ships and light boats retarder output gearwheel front and back bearings, little because of loading, linear velocity is high, if take conventional circular journal bearing, very likely cause the vibration of supporting rotor, give the safe and reliable hidden danger of bringing of ships and light boats gear reducer.For eliminating the vibration that may occur, adopted segmentation bearing shell profile shaft to hold during design, the dynamic performance that segmentation bearing shell profile shaft holds under the high speed light loading condition is better than circular journal bearing, if the static properties that segmentation bearing shell profile shaft holds can satisfy the job requirement of ships and light boats gear reducer, in " rotor-supporting-basis " this system, the oil film dynamic response that segmentation bearing shell profile shaft holds will play more useful effect to rotor stable.
Segmentation bearing shell profile shaft holds to adopt in gear reducer at China's ships and light boats and still belongs to the first time, and is safe and reliable for guaranteeing, except that the designing and calculating work improvement, also carries out and finished the experiment work that segmentation bearing shell profile shaft holds.Test is carried out under simulation ships and light boats gear reducer operating conditions by Virtual Prototype Technique, mainly is the load-carrying properties of examination bearing, and purpose is the Security that the real ship of checking uses, and examines the design-calculated degree of reliability in addition.By test relatively, test result and calculated data difference are little, design calculation result is credible, the static properties of bearing (thickness, power consumption, flow, temperature) is suitable for operating conditions, can guarantee safe operation, and, because the segmentation bearing shell profile shaft characteristic of holding, the vibration suppression of rotor has been increased margin of safety.
Be the expansion by dislocation in the alloy and shrink and absorb vibrational energy based on the damper mechanism of novel high-performance iron-based damping alloy, therefore high-performance iron-based damping alloy has good noise damping, the method that adopts segmentation bearing shell type to add high-performance iron-based damping alloy layer reduces the Oil Wedge Hydrodynamic Bearing rotational noise, under China's condition of market economy of now, the important techniques economic value will be arranged, and provide feasible improvement measure for ships and light boats gear drive low-noise performance.Ships and light boats retarder output gearwheel front and back bearings adopts segmentation bearing shell type additional damping material vibration absorbing structure simple, compact, safe and reliable, convenient maintenance and replacement.
Claims (3)
1, a kind of ships and light boats bearing shell, it is characterized in that: described bearing shell is by bearing shell main body (1), damping outer sleeve layer (2) and wear-resistant liner tube layer (3) are formed, have annular groove (1-1) on the outer surface of described bearing shell main body (1), described damping outer sleeve layer (2) is sleeved on the annular groove (1-1), uniform vertically four through holes (3-1) that have on the wear-resistant liner tube layer (3), wear-resistant liner tube layer (3) is installed on the internal surface of bearing shell main body (1), have four oil holes (4) on the bearing shell main body (1), four oil holes (4) are corresponding with the position of four through holes (3-1), and each oil hole (4) is communicated with corresponding through hole (3-1).
2, ships and light boats bearing shell according to claim 1 is characterized in that: described damping outer sleeve layer (2) is a ferrous alloy damping outer sleeve layer.
3, ships and light boats bearing shell according to claim 1 and 2 is characterized in that: described wear-resistant liner tube layer (3) is a Babbitt wear-resistant liner tube layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202118578U CN201314335Y (en) | 2008-12-30 | 2008-12-30 | Bearing bush for boat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202118578U CN201314335Y (en) | 2008-12-30 | 2008-12-30 | Bearing bush for boat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201314335Y true CN201314335Y (en) | 2009-09-23 |
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ID=41126128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202118578U Expired - Fee Related CN201314335Y (en) | 2008-12-30 | 2008-12-30 | Bearing bush for boat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201314335Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557233A (en) * | 2013-10-31 | 2014-02-05 | 湖南崇德工业科技有限公司 | Babbit metal bearing bush with bonding layer |
-
2008
- 2008-12-30 CN CNU2008202118578U patent/CN201314335Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557233A (en) * | 2013-10-31 | 2014-02-05 | 湖南崇德工业科技有限公司 | Babbit metal bearing bush with bonding layer |
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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: 20090923 Termination date: 20141230 |
|
| EXPY | Termination of patent right or utility model |