CN212297302U - Waist installation intermediate bearing of ship main propulsion shafting - Google Patents
Waist installation intermediate bearing of ship main propulsion shafting Download PDFInfo
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- CN212297302U CN212297302U CN202021550577.7U CN202021550577U CN212297302U CN 212297302 U CN212297302 U CN 212297302U CN 202021550577 U CN202021550577 U CN 202021550577U CN 212297302 U CN212297302 U CN 212297302U
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- bearing bush
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Abstract
The utility model discloses a waist installation intermediate bearing of a ship main propulsion shafting, which comprises a bearing seat and a bearing cover which are matched with each other; the bearing pedestal is characterized in that the bearing pedestal and the bearing cover are connected and fixed through a fastening bolt, and a jacking bolt is arranged on the outer side of the fastening bolt; a lower bearing bush is arranged in the bearing block, an upper bearing bush is arranged in the bearing cap, and an elastic cylindrical pin is arranged between the bearing cap and the upper bearing bush; the matching surfaces between the upper bearing bush and the bearing cover and between the lower bearing bush and the bearing seat are spherical surfaces. The cooling device has the advantages that the lubricating oil cavity in the bearing seat is enlarged, the cooling coil is directly contacted with lubricating oil for heat exchange, and the cooling effect is good; the bearing seat is simple in internal structure and simple and convenient to manufacture, the manufacturing cost is reduced, and the product percent of pass is improved; temperature sensor's bulb length is adjustable, and with the axle bush contact, it is accurate to measure, effectively avoids the phenomenon of burning the tile, and bearing cap, bearing frame both ends exit adopt seal groove and oil blanket dual seal, and sealed effectual effectively avoids the lubricating oil to ooze.
Description
Technical Field
The utility model relates to a field of intermediate bearing especially relates to a waist installation intermediate bearing of boats and ships main propulsion shafting.
Background
In a long shafting ship partially composed of a plurality of intermediate shafts and propeller shafts, the intermediate bearing at the shaft tunnel passing through a narrow space cannot adopt a bottom mounting mode due to the relation of space and position, and only a waist mounting mode can be adopted. The middle bearing seat installed on the waist in the prior art is divided into an oil sliding cavity and a cooling water cavity and is a casting, so that the molding process is complex, the production efficiency is low, the rejection rate is high, the cooling effect is poor, and the cooling is uneven. The lower bearing bush is arranged on the bearing block, the lower bearing bush is not effectively pressed, and the lower bearing bush can circumferentially rotate within a certain range; the length of a temperature bulb of the temperature sensor cannot be adjusted, the temperature bulb is not in contact with a bearing bush, the temperature of lubricating oil is actually measured, the risk of burning the bearing bush exists, and the temperature of the lubricating oil cannot be measured on site because only one interface is provided; the sealing effect of the outlets at the two ends of the bearing cover and the bearing seat is general, and leakage cannot be avoided; there is a risk of oil bleeding from the outlet.
Disclosure of Invention
The utility model aims at providing a waist installation intermediate bearing of boats and ships main propulsion shafting, rational in infrastructure, excellent in use effect, long service life, structural stability is good, has solved above technical problem.
In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: a waist-mounted intermediate bearing of a ship main propulsion shafting comprises a bearing seat and a bearing cover which are matched with each other; the method is characterized in that: the width of the upper end plate of the bearing seat is larger than that of the lower end plate of the bearing cover, the bearing seat and the bearing cover are fixedly connected through a fastening bolt, and a jacking bolt is arranged on the outer side of the fastening bolt; the bearing cover is arranged in a step mode, an observation cover plate is arranged on a high-order plane of the bearing cover, a hinge cover plate is arranged above the observation cover plate, a grid is arranged below the observation cover plate, and an oil filling hopper is arranged below the grid; an air pipe joint is arranged on the low-order plane of the bearing cover; the bearing block is arranged in an inverted trapezoid shape, a lower bearing bush is arranged in the bearing block, an upper bearing bush is arranged in the bearing cover, and an elastic cylindrical pin is arranged between the bearing cover and the upper bearing bush; the matching surfaces between the upper bearing bush and the bearing cover and between the lower bearing bush and the bearing seat are spherical surfaces.
Preferably: the bearing cover is also provided with a temperature sensor, and a bulb of the temperature sensor is arranged in a telescopic manner and is perpendicular to the surface of the bearing cover.
Preferably: the bearing cover and the bearing seat are circular, steps are arranged on the inner surfaces of the two end surfaces, two parallel annular seal grooves are formed in the inner steps, a J-shaped frameless oil seal is arranged on the outer steps, steps are arranged at one end, close to the seal grooves, of the oil seal, and a gland is arranged on the outer side of the oil seal.
Preferably: and the left sides of the upper bearing bush and the lower bearing bush are provided with oil throwers, and one ends of the oil throwers, which are far away from the upper bearing bush and the lower bearing bush, are horn-shaped.
Preferably: a rotary cavity is arranged in the bearing seat, a cooling coil is arranged on one side in the cavity, and a thermometer and a discharging bolt are arranged on the other side corresponding to the cooling coil; the cooling coil is arranged in a spiral shape, and the medium in the cooling coil is cooling water.
The utility model has the advantages that; a waist installation intermediate bearing of boats and ships main propulsion shafting compares with traditional structure: the structure is reasonable, the stability is good, the safety and the reliability are high, the lubricating oil cavity in the bearing seat is enlarged, the cooling coil is directly contacted with lubricating oil for heat exchange, and the cooling effect is good; the bearing seat is simple in internal structure and simple and convenient to manufacture, the manufacturing cost is reduced, and the product percent of pass is improved; temperature sensor's bulb length is adjustable, and with the axle bush contact, it is accurate to measure, effectively avoids the phenomenon of burning the tile, and bearing cap, bearing frame both ends exit adopt seal groove and oil blanket dual seal, and sealed effectual effectively avoids the lubricating oil to ooze.
Drawings
Fig. 1 is a top view of the present invention;
fig. 2 is a cross-sectional view taken along line a-a of fig. 1 in accordance with the present invention;
FIG. 3 is a cross-sectional view B-B, C-C of FIG. 1 in accordance with the present invention;
in the figure: 1. a bearing seat; 2. a bearing cap; 3. fastening a bolt; 4. jacking the bolt; 5. an observation cover plate; 6. a hinge cover plate; 7. a grid; 8. an oil filling hopper; 9. an air pipe joint; 10. a lower bearing bush; 11. an upper bearing bush; 12. an elastic cylindrical pin; 13. a temperature sensor; 14. a circumferential seal groove; 15. oil sealing; 16. a gland; 17. an oil slinger; 18. a chamber; 19. a cooling coil; 20. a thermometer; 21. and (4) discharging the bolt.
Detailed Description
In order to make the object, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments;
in the accompanying fig. 1-3: a waist installation middle bearing of a ship main propulsion shafting comprises a bearing seat 1 and a bearing cover 2 which are matched with each other; the bearing seat is characterized in that the width of the upper end plate of the bearing seat 1 is larger than that of the lower end plate of the bearing cover 2, so that the waist installation condition is met; the bearing seat 1 and the bearing cover 2 are positioned by adopting an internal thread taper pin and are connected and fixed through a fastening bolt 3, and a jacking bolt 4 is arranged on the outer side of the fastening bolt 3; the bearing block is installed on the ship installation base, six reaming holes are used for connection through bolts, the jacking bolts are used for facilitating centering adjustment of the bearing when the bearing block is installed on the ship installation base, centering adjustment time is shortened, workload is reduced, and working efficiency is improved. Bearing cap 2 set up to cascaded, be provided with on the high-order plane of bearing cap 2 and observe apron 5, the top of observing apron 5 is provided with hinge apron 6, conveniently observes the lubricating oil condition at any time, effectively prevents again that the lubricating oil from oozing from bearing cap upper portion. A grid 7 is arranged below the observation cover plate 5, and an oil filling hopper 8 is arranged below the grid 7; the grid is used for filtering lubricating oil when lubricating oil is filled, and impurities in the oil are prevented from entering the bearing; an air pipe joint 9 is arranged on the low-order plane of the bearing cap 2; for evacuation and heat dissipation; the bearing block 1 is arranged in an inverted ladder shape, a lower bearing bush 10 is arranged in the bearing block 1, an upper bearing bush 11 is arranged in the bearing cap 2, and an elastic cylindrical pin 12 is arranged between the bearing cap 2 and the upper bearing bush 11; and the deflection angle of the bearing bush is controlled by the dimensional tolerance value of the pin hole on the bearing cover and the elastic cylindrical pin. The matching surfaces between the upper bearing bush 11 and the bearing cover 2 and between the lower bearing bush 10 and the bearing seat 1 are spherical surfaces; the bearing bush can rotate around the spherical surfaces in the bearing seat and the bearing cap shell, self-aligning is realized, and the bearing bush is effectively suitable for swinging and jolting generated in the operation process of the journal.
The bearing cover 2 is also provided with a temperature sensor 13, and a bulb of the temperature sensor 13 is arranged in a telescopic manner and is vertical to the surface of the bearing cover 2; the temperature control device is arranged at an angle of 60 degrees with the horizontal plane, and the temperature bulb can be tightly attached to the surface of the bearing bush, so that the temperature of the bearing bush can be accurately monitored in real time; the temperature of the lubricant is measured without the temperature of the bearing bush; the bearing bush burning phenomenon is avoided, and the running reliability of the shafting is improved.
The bearing cap 2 and the bearing seat 1 are circular in two end faces, steps are arranged on the inner surfaces of the two end faces, two parallel annular seal grooves 14 are formed in the inner side steps, a J-shaped frameless oil seal 15 is arranged on the outer side steps, steps are arranged at one end, close to the seal groove 14, of the oil seal 15, and a gland 16 is arranged on the outer side of the oil seal 15. The joint action of the sealing groove and the J-shaped frameless oil seals at the outlets at the two ends of the bearing block can effectively prevent lubricating oil from flowing out from the outlets at the two ends of the shaft neck and the bearing block.
The oil thrower is characterized in that oil thrower discs 17 are arranged on the left sides of the upper bearing bush 11 and the lower bearing bush 10, one ends, far away from the upper bearing bush 11 and the lower bearing bush 10, of the oil thrower discs 17 are horn-shaped, the using effect is good, and hot oil is effectively prevented from entering the bearings.
A rotary cavity 18 is arranged in the bearing seat 1, lubricating oil is arranged in the cavity 18, and a cooling coil 19 is arranged on one side in the cavity, so that a cooling cavity is omitted, the bearing seat is simpler to machine, and the machining cost is reduced; the cooling coil is directly arranged in the lubricating oil, so that the cooling effect is greatly improved; a thermometer 20 and a discharging bolt 21 are arranged on the other side corresponding to the cooling coil; the cooling coil 19 is arranged in a spiral shape, the cooling heat exchange area is increased, the heat exchange effect is improved, the medium in the cooling coil 19 is cooling water, the cost is low, and the cooling coil can be recycled.
The utility model discloses a concrete implementation: the bearing bush of the utility model is of a split structure and is divided into an upper bearing bush and a lower bearing bush, the split surfaces of the upper bearing bush and the lower bearing bush are scraped, the inner thread taper pin is adopted for positioning, and the inner hexagon screw is connected and fastened; the matching surfaces of the bearing bush, the bearing seat and the bearing cover are spherical surfaces, the bearing bush can rotate around the spherical surfaces in the bearing seat and the bearing cover shell to realize self-aligning, and the angle of the self-aligning is less than or equal to 0.245 degrees and is about 15 degrees; the back material of the upper bearing bush and the lower bearing bush is 20# forged steel, the material of the bush lining is Babbitt alloy with the trade mark of ZChSnSb11Cu6Cd1, and the performance is stable. An elastic cylindrical pin is adopted between the bearing cover and the bearing bush to control the deflection angle of the bearing bush;
the observation cover plate is positioned on the bearing cover, an organic glass transparent material is adopted, and then a hinge cover plate is installed; the bearing cover is provided with a grid for filtering lubricating oil when lubricating oil is filled. The upper part of the bearing cover is provided with a low-pressure pipe threaded joint for emptying and radiating.
The bearing cover and the inner sides of the outlets at the head end and the tail end of the bearing seat shell are provided with labyrinth seal structures respectively, and oil grooves are milled at the lower parts of the bearing cover and the bearing seat shell to enable lubricating oil in the labyrinth seal grooves to flow back into the bearing seat. J-shaped frameless oil seals are also arranged on the outer sides of the outlets at the two ends of the bearing seat and the bearing cover shell.
The bearing seat is only provided with an oil lubricating cavity, and is not provided with a cooling water cavity, and the direct cooling coil is placed in the oil lubricating cavity for cooling; the cooling coil is made of a copper-nickel alloy pipe with the material brand of B10-B30, and has good seawater corrosion resistance.
The lower bearing bush is arranged on the bearing block, and when the real ship is arranged, in order to prevent circumferential rotation between the lower bearing bush and the bearing block, a positioning screw is adopted to compress the lower bearing bush for centering; after centering is completed, the positioning screw is removed to perform subsequent installation work. The bearing cover is arranged on the bearing seat, a red copper gasket is not used on the joint surface, the joint surface adopts a scraping process, an oil groove is formed on the splitting surface of the bearing seat, and a non-dry bonding type liquid sealant is coated on the joint surface when the real ship is installed.
The dipstick is located on the bearing cap, and the dipstick interface has two, left and right symmetrical arrangement. And the dip rod interface has two, when the real ship uses, one of them interface of arbitrary use, on another uses the plug. The temperature sensor is positioned on the bearing cover, the temperature sensor adopts a telescopic structure, is installed at an angle of 60 degrees with the horizontal plane, and has two installation interfaces which are symmetrically arranged on the left and right, when the ship is used, one of the interfaces is randomly used, and the other one is plugged by a screw plug; a thermometer for measuring the temperature of the oil in situ was mounted on the thermometer holder. And the bearing seat is provided with a jacking bolt for adjusting the centering of the bearing when the bearing is arranged on the ship mounting base. The utility model discloses an intermediate bearing's mounting means is waist installation.
The foregoing examples are given for the purpose of illustrating the present invention in a clear and non-restrictive manner, and it will be apparent to those skilled in the art that variations and modifications of the present invention may be made in other variations and modifications based on the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments, and all such variations and modifications as are obvious and desirable in the art are within the scope of the present invention.
Claims (5)
1. A waist-mounted middle bearing of a ship main propulsion shafting comprises a bearing seat (1) and a bearing cover (2) which are matched with each other; the method is characterized in that: the width of an upper end plate of the bearing seat (1) is larger than that of a lower end plate of the bearing cover (2), the bearing seat (1) and the bearing cover (2) are connected and fixed through a fastening bolt (3), and a jacking bolt (4) is arranged on the outer side of the fastening bolt (3); the bearing cover (2) is arranged in a step mode, an observation cover plate (5) is arranged on a high-order plane of the bearing cover (2), a hinge cover plate (6) is arranged above the observation cover plate (5), a grid (7) is arranged below the observation cover plate (5), and an oil filling hopper (8) is arranged below the grid (7); an air pipe joint (9) is arranged on the low-order plane of the bearing cover (2); the bearing block (1) is arranged in an inverted ladder shape, a lower bearing bush (10) is arranged in the bearing block (1), an upper bearing bush (11) is arranged in the bearing cover (2), and an elastic cylindrical pin (12) is arranged between the bearing cover (2) and the upper bearing bush (11); the matching surfaces between the upper bearing bush (11) and the bearing cover (2) and between the lower bearing bush (10) and the bearing seat (1) are spherical surfaces.
2. The waist-mounted intermediate bearing of a main propulsion shafting of a marine vessel as claimed in claim 1, wherein: the bearing cover (2) is further provided with a temperature sensor (13), a temperature bulb of the temperature sensor (13) is arranged in a telescopic mode and is perpendicular to the surface of the bearing cover (2).
3. The waist-mounted intermediate bearing of a main propulsion shafting of a marine vessel as claimed in claim 1, wherein: the bearing cover (2) and the bearing seat (1) are circular, steps are arranged on the inner surfaces of the two end surfaces, two parallel annular seal grooves (14) are formed in the inner side steps, a J-shaped frameless oil seal (15) is arranged on the outer side steps, the steps are arranged at one end, close to the seal groove (14), of the oil seal (15), and a gland (16) is arranged on the outer side of the oil seal (15).
4. The waist-mounted intermediate bearing of a main propulsion shafting of a marine vessel as claimed in claim 1, wherein: the left sides of the upper bearing bush (11) and the lower bearing bush (10) are provided with oil thrower discs (17), and one ends, far away from the upper bearing bush (11) and the lower bearing bush (10), of the oil thrower discs (17) are horn-shaped.
5. The waist-mounted intermediate bearing of a main propulsion shafting of a marine vessel as claimed in claim 1, wherein: a rotary cavity (18) is arranged in the bearing seat (1), one side in the cavity (18) is provided with a cooling coil (19), and the other side corresponding to the cooling coil is provided with a thermometer (20) and a discharging bolt (21); the cooling coil (19) is arranged in a spiral shape, and the medium in the cooling coil (19) is cooling water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021550577.7U CN212297302U (en) | 2020-07-31 | 2020-07-31 | Waist installation intermediate bearing of ship main propulsion shafting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021550577.7U CN212297302U (en) | 2020-07-31 | 2020-07-31 | Waist installation intermediate bearing of ship main propulsion shafting |
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| Publication Number | Publication Date |
|---|---|
| CN212297302U true CN212297302U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021550577.7U Active CN212297302U (en) | 2020-07-31 | 2020-07-31 | Waist installation intermediate bearing of ship main propulsion shafting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115853912A (en) * | 2022-11-30 | 2023-03-28 | 中国船舶集团有限公司第七0三研究所 | Independent cooling support bearing with self-adaptive axis deflection function |
-
2020
- 2020-07-31 CN CN202021550577.7U patent/CN212297302U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115853912A (en) * | 2022-11-30 | 2023-03-28 | 中国船舶集团有限公司第七0三研究所 | Independent cooling support bearing with self-adaptive axis deflection function |
| CN115853912B (en) * | 2022-11-30 | 2024-04-16 | 中国船舶集团有限公司第七0三研究所 | Independent cooling support bearing with self-adaptive axis deflection function |
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