CN110594307A - Large-torque meshing type marine main shaft connecting flange structure and machining method - Google Patents
Large-torque meshing type marine main shaft connecting flange structure and machining method Download PDFInfo
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- CN110594307A CN110594307A CN201910876863.8A CN201910876863A CN110594307A CN 110594307 A CN110594307 A CN 110594307A CN 201910876863 A CN201910876863 A CN 201910876863A CN 110594307 A CN110594307 A CN 110594307A
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- main shaft
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- fastener
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- 238000003754 machining Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 8
- 238000003672 processing method Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 description 5
- 229910001069 Ti alloy Inorganic materials 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
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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
-
- 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
- B63H23/34—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/02—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
- F16D1/033—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like by clamping together two faces perpendicular to the axis of rotation, e.g. with bolted flanges
-
- 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
- B63H23/34—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts
- B63H2023/342—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts comprising couplings, e.g. resilient couplings; Couplings therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2300/00—Special features for couplings or clutches
- F16D2300/10—Surface characteristics; Details related to material surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a large-torque meshing type marine main shaft connecting flange structure and a processing method thereof, wherein the connecting flange structure is used for ship stern shaft connection; the connecting flange structure comprises a first flange plate, a second flange plate and a fastening piece; the first flange plate and the second flange plate have the same structure, one surface of the first flange plate and the second flange plate which are oppositely arranged is provided with a plurality of fan-shaped concave-convex structures which are uniformly distributed along the circumference, and the first flange plate and the second flange plate are mechanically butted through the uniformly distributed fan-shaped concave-convex structures; the fan-shaped concave-convex structures of the first flange plate and the second flange plate are provided with bolt holes which are uniformly distributed along the circumference, and the fastener connects the first flange plate and the second flange plate into a whole through the bolt holes. The fan-shaped concave-convex structure mainly bears the torque and the thrust of a shaft system, the bolt mainly bears the thrust of a propeller, the requirements on the mechanical property and the installation precision of the sleeve are greatly reduced, and the realization is easier.
Description
Technical Field
The invention belongs to the technical field of ship construction, relates to ship equipment processing and manufacturing, and particularly relates to a large-torque meshing type marine main shaft connecting flange structure and a processing method.
Background
When the ship stern shaft is connected, the requirements of sealing, mechanical property and the like are met, and electric insulation is also needed to be realized. It is often necessary to achieve this with an electrically insulating connection assembly. Currently, the requirement on the matching precision between the bolt and the screw hole in the existing electric insulation connecting component is higher. This results in major problems with the installation of the insulating sleeve and may damage the coating on the sleeve surface during installation. The insulating sleeve in the existing electric insulating connecting component needs to bear larger compressive stress, and the requirement on the installation precision is higher and is difficult to meet. Therefore, there is a need for an electrically insulating coupling flange structure that addresses this difficulty, reduces the compressive stresses to which the sleeve is subjected, and also reduces the accuracy of installation.
The chinese utility model patent with publication number "CN 206545745U" discloses a marine shockproof sealing flange, adopts integral type flange body structure, has solved the sealed problem of flange, but can not reduce the compressive stress that the insulating layer received. The Chinese patent with publication number "CN 109204684A" discloses an insulation sealing connection method of a marine steel structure and a titanium alloy, which can solve the connection problem of the titanium alloy and a ship body steel structure, and the method comprises the steps of adhering a chloroprene rubber plate and a polyvinyl chloride plate on a steel flange and a titanium flange to form a sealed sandwich type interlayer, then directionally installing steel bolts in all flange holes and fastening to obtain a stable-size whole body, and finally replacing the steel bolts among the structures with composite material mould pressing sleeves and stainless steel bolt assemblies to obtain a high-insulation sealing soft interface structure between the steel flange and the titanium flange. The soft interface structure prepared by the invention has excellent insulating property and high sealing property, and can effectively prolong the service life of the titanium alloy bulb; the invention is mainly applied to the connection of the bulbous bow part, can not be applied to the ship stern shaft connection, and can not reduce the compressive stress borne by the insulating layer.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a large-torque meshing type marine main shaft connecting flange structure and a processing method thereof, wherein a fan-shaped concave-convex structure is used for mechanical butt joint, a gasket is arranged in the middle of a flange, a bolt hole is bored in the gasket, and the two flange plates and the gasket are connected into a whole through bolts; the surface of the fan-shaped concave-convex washer is covered with an insulating coating, the bolt fastener is provided with a gasket, and the screw rod is externally provided with an insulating sleeve. The fan-shaped concave-convex structure mainly bears the torque and the thrust of a shafting, and the bolt mainly bears the thrust of the propeller, so that the requirements on the mechanical property and the installation precision of the sleeve are greatly reduced.
Therefore, the invention adopts the following technical scheme:
a large-torque meshing type marine main shaft connecting flange structure is used for ship stern shaft connection; the connecting flange structure comprises a first flange plate, a second flange plate and a fastening piece; the first flange plate and the second flange plate have the same structure, one surface of the first flange plate and the surface of the second flange plate, which are oppositely arranged, are provided with a plurality of fan-shaped concave-convex structures which are uniformly distributed along the circumference, and the first flange plate and the second flange plate are mechanically butted through the uniformly distributed fan-shaped concave-convex structures; the fan-shaped concave-convex structures of the first flange plate and the second flange plate are provided with bolt holes which are uniformly distributed along the circumference, and the fastening piece connects the first flange plate and the second flange plate into a whole through the bolt holes.
Preferably, an inter-flange washer is arranged in the middle of the butt joint position of the first flange and the second flange, and the shape of the inter-flange washer is matched with the fan-shaped concave-convex structures of the first flange and the second flange; the gasket between the flanges is circular, and the outer diameter of the gasket is the same as that of the first flange and the second flange.
Preferably, the surface of the inter-flange gasket is covered with an insulating coating.
Preferably, the contact surfaces of the fastener and the first flange plate and the second flange plate are provided with fastener gaskets, and the periphery of the fastener is provided with a sleeve for realizing insulation.
Preferably, the fastener gasket comprises a plurality of circular structures with holes in the middle, the number of the circular structures with holes in the middle is equal to that of the fasteners, and the circular structures with holes in the middle are connected into a circular arc shape.
Preferably, the fastener gasket is a circular ring structure with a hole in the middle, and the position of the hole corresponds to the position of the fastener.
Preferably, the length of the sleeve is equal to the thickness of the first flange and the second flange which are connected into a whole.
Preferably, the fasteners adopt bolts, the diameters of the bolts are determined according to the stress of the connecting flange structure, and the number of the bolts is adopted according to the requirement of load distribution uniformity.
Preferably, the connecting flange structure is located at a flange intermediate the ship thrust bearing and the front support bearing; the first flange plate and the second flange plate are both made of steel.
According to the processing method of the large-torque meshing type marine main shaft connecting flange structure, the fan-shaped concave-convex structures of the first flange plate and the second flange plate are manufactured by finish machining; boring bolt holes in the flange plate gasket, manufacturing the concave-convex structure by adopting finish machining, spraying an insulating material on the surface, placing the flange plate gasket between the first flange plate and the second flange plate and accurately butting the flange plate gasket and the second flange plate; putting bolt sleeves into bolt holes corresponding to the first flange plate and the second flange plate, and fixing the fasteners after penetrating the sleeves; and in the fixing process, a fastener gasket is arranged between each fastener and the contact surface of the first flange plate and the second flange plate for insulation.
Compared with the prior art, the invention has the beneficial effects that:
(1) the ship stern shaft connection is conveniently realized by changing the contact matching mode of the flange plates.
(2) The fan-shaped concave-convex structure mainly bears the torque and the thrust of a shafting, the bolt mainly bears the thrust of the propeller, the mechanical property and the installation precision of the sleeve are greatly reduced, and the realization is easier.
(3) The compression stress on the bolt sleeve is greatly reduced, and therefore the precision requirement of the gap between the bolt and the bolt hole and the installation difficulty of the bolt sleeve are reduced.
(4) By reasonably selecting the spraying process, the strength of the insulating coating of the flange plate surface and the gasket between the flange plates can meet the requirement of mechanical property.
(5) The coating on the surface of the sleeve is not easy to damage, the cost is saved, the maintenance cost is reduced, and the economic benefit is obvious.
Drawings
Fig. 1 is a schematic plan view of a large-torque meshing type marine main shaft connecting flange structure provided by the invention.
Fig. 2 is a side structure schematic diagram of a large-torque meshing type marine main shaft connecting flange structure provided by the invention.
Fig. 3 is a schematic sectional structure view of a large-torque meshing type marine main shaft connecting flange structure provided by the invention.
Fig. 4 is a front view of a flange plate in a large-torque meshing type marine main shaft connecting flange structure provided by the invention.
Fig. 5 is a left side view of a flange plate in the structure of the main shaft connecting flange for the large-torque meshing type ship provided by the invention.
Fig. 6 is a rear view of a flange plate in a structure of a main shaft connecting flange for a large torque engagement type ship provided by the present invention.
Fig. 7 is a right side view of a flange plate in the structure of the main shaft connecting flange for the large-torque meshing type ship provided by the invention.
Fig. 8 is a front view of a washer between flanges in a main shaft connecting flange structure for a large torque engagement type ship according to the present invention.
Fig. 9 is a left side view of a washer between flanges in a structure of a main shaft connecting flange for a large torque engagement type ship according to the present invention.
Fig. 10 is a schematic view showing the arrangement of the fastening members in the structure of the main shaft connecting flange for a large torque engagement type ship according to the present invention.
Fig. 11 is a schematic view showing the arrangement of the fastener washers in the structure of the large torque engagement type marine main shaft connecting flange according to the present invention.
FIG. 12 is another structural schematic view of a fastener washer in the construction of a high torque engagement marine main shaft connecting flange according to the present invention.
Fig. 13 is a distribution schematic diagram of a sleeve in a large-torque meshing type marine main shaft connecting flange structure provided by the invention.
Fig. 14 is a schematic perspective view illustrating a main shaft connecting flange structure for a large-torque meshing type ship according to an embodiment of the present invention.
Description of reference numerals: 1. a first flange plate; 2. a second flange plate; 3. a fastener; 4. a gasket between the flanges; 5. a fastener shim; 6. a sleeve; 7. bolt holes.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are provided for illustration only and are not to be construed as limiting the invention.
As shown in fig. 1-3, the invention discloses a large-torque meshing type marine main shaft connecting flange structure for ship stern shaft connection; the connecting flange structure comprises a first flange plate 1, a second flange plate 2 and a fastening piece 3; the first flange plate 1 and the second flange plate 2 are identical in structure, a plurality of fan-shaped concave-convex structures are uniformly distributed along the circumference on the surface of the first flange plate 1 and the surface of the second flange plate 2 which are oppositely arranged, and the first flange plate 1 and the second flange plate 2 are mechanically butted through the uniformly distributed fan-shaped concave-convex structures; the fan-shaped concave-convex structures of the first flange plate 1 and the second flange plate 2 are provided with bolt holes 7 uniformly distributed along the circumference, and the fastening piece 3 connects the first flange plate 1 and the second flange plate 2 into a whole through the bolt holes. The first flange 1 and the second flange 2 are constructed as shown in fig. 4 to 7.
Specifically, an inter-flange gasket 4 is arranged in the middle of the butt joint position of the first flange 1 and the second flange 2, and the shape of the inter-flange gasket 4 is matched with the fan-shaped concave-convex structures of the first flange 1 and the second flange 2; the gasket 4 between the flanges is circular, and the outer diameter of the gasket is the same as that of the first flange 1 and the second flange 2. The structure of the inter-flange gasket 4 is shown in fig. 8 and 9.
Specifically, the surface of the inter-flange gasket 4 is covered with an insulating coating.
Specifically, the contact surfaces of the fastener 3 and the first flange plate 1 and the second flange plate 2 are provided with fastener gaskets 5, and the periphery of the fastener 3 is provided with a sleeve 6 for realizing insulation. The distribution of the fasteners 3 is shown in figure 10.
As shown in fig. 11, the fastener washer 5 includes a plurality of circular structures with intermediate holes, the number of the circular structures with intermediate holes is equal to the number of the fasteners 3, and the circular structures with intermediate holes are connected into a circular arc shape.
As shown in fig. 12, the fastener pad 5 is a circular ring structure with a hole in the middle, and the position of the hole corresponds to the position of the fastener 3.
Specifically, the length of the sleeve 6 is the thickness of the first flange plate 1 and the second flange plate 2 which are connected into a whole. The distribution of the sleeve 6 is shown in fig. 13.
Specifically, the fasteners 3 adopt bolts, the diameters of the bolts are determined according to the stress of the connecting flange structure, and the number of the bolts is adopted according to the requirement of load distribution uniformity.
Specifically, the connecting flange structure is positioned at a flange between the ship thrust bearing and the front support bearing; the first flange plate 1 and the second flange plate 2 are both made of steel.
The invention also discloses a processing method of the large-torque meshing type marine main shaft connecting flange structure, wherein the fan-shaped concave-convex structures of the first flange plate 1 and the second flange plate 2 are manufactured by finish machining; the flange washer 4 is provided with a bolt hole 7 in a boring way, the concave-convex structure is manufactured by finish machining, the surface of the concave-convex structure is sprayed with an insulating material, and the concave-convex structure is arranged between the first flange 1 and the second flange 2 and is precisely butted with the first flange; putting bolt sleeves 6 into bolt holes 7 corresponding to the first flange plate 1 and the second flange plate 2, and fixing the fasteners 3 after penetrating the sleeves 6; during the fixing process, a fastener gasket 5 is arranged between the contact surface of each fastener 3 and the first flange plate 1 and the contact surface of each fastener 2 for insulation.
Examples
A large-torque meshing type main shaft connecting flange structure for a ship is shown in figure 14 and comprises a first flange plate 1, a second flange plate 2, a fastening piece 3, a gasket 4 between the flange plates, a fastening piece gasket 5 and a sleeve 6; the first flange plate 1 and the second flange plate 2 are respectively provided with 6 uniformly distributed fan-shaped concave-convex structures along the circumferential direction, the flange structures are mechanically butted through the six fan-shaped concave-convex structures, the fan-shaped concave-convex structures can realize accurate butt joint through finish machining, a gasket 4 between the flange plates is arranged in the middle of the flange, bolt holes 7 are bored in the gasket 4 between the flange plates, and the first flange plate 1, the second flange plate 2 and the gasket 4 between the flange plates are connected into a whole through bolts; in order to realize electric field isolation, the surface of the fan-shaped concave-convex washer is covered with an insulating coating, a fastener gasket 5 is arranged at the contact surface position of the bolt fastener 3 with the first flange plate 1 and the second flange plate 2, and an insulating sleeve 6 is arranged outside the screw rod. So design, fan-shaped concave-convex structure mainly bears the moment of torsion and the thrust of shafting, and the bolt mainly bears the thrust of screw, consequently requires greatly reduced to telescopic mechanical properties.
And precisely butting the first flange plate 1 and the second flange plate 2 through finish machining, and adding an inter-flange-plate gasket 4 between the first flange plate and the second flange plate to realize an insulating effect. And then, fixing by using a fastener 3, adding a fastener gasket 5 at the joint of the fastener 3 and the flange, and adding a sleeve 6 at the periphery of the fastener 3 to realize an insulating effect.
The invention is used for ship stern shaft connection, and the specific position is a flange between a thrust bearing and a front support bearing.
The flange plate is a main stress assembly and bears larger force, so the flange plate is made of steel.
The material of the gasket 4 between the flanges is the same as or similar to that of the flanges, and an insulating layer with good performance is formed on the surface by adopting various surface treatment modes. The inter-flange gasket 4 is circular and has an outer diameter substantially the same as the outer diameter of the flange and a thickness of about 3 mm.
Since the fastening member 3 mainly receives the compressive stress, the fastening member 3 is made of steel. From the safety and economic aspects, it is reasonable to use bolts with a diameter of more than 24 mm. The number of the bolts is determined according to the requirement of load distribution uniformity, and the uniformly distributed bolts with the number as much as possible can be adopted. Here, 12 bolts are used and evenly distributed along the 6 fan-shaped concave-convex structures of the flange.
The fastener gasket 5 is made of the same material as the flange. The fastener washer 5 is circular or circular in shape (formed by a plurality of discs with holes in the middle) as shown in figures 11 and 12 respectively.
Because the bolt no longer bears the shear force, the fit clearance precision requirement between bolt and the bolt hole reduces, and bolt sleeve 6 atress greatly reduced only bears the pretightning force when installing. The sleeve 6 is made of high-performance polymer material polyphenylene sulfide (PPS). The wall thickness of the sleeve 6 is 2mm, and the length is the thickness of the flange.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and scope of the present invention are intended to be covered thereby.
Claims (10)
1. The utility model provides a marine main shaft of big moment of torsion meshing type connects flange structure for boats and ships stern shaft connects which characterized in that: the connecting flange structure comprises a first flange plate (1), a second flange plate (2) and a fastening piece (3); the first flange plate (1) and the second flange plate (2) are identical in structure, a plurality of fan-shaped concave-convex structures which are uniformly distributed along the circumference are arranged on one surface of the first flange plate and the second flange plate which are oppositely arranged, and the first flange plate (1) and the second flange plate (2) are in mechanical butt joint through the uniformly distributed fan-shaped concave-convex structures; the fan-shaped concave-convex structure of the first flange plate (1) and the second flange plate (2) is provided with bolt holes (7) uniformly distributed along the circumference, and the fastener (3) connects the first flange plate (1) and the second flange plate (2) into a whole through the bolt holes.
2. A large-torque-engagement type marine main shaft connecting flange structure according to claim 1, wherein: an inter-flange gasket (4) is arranged in the middle of the butt joint position of the first flange (1) and the second flange (2), and the shape of the inter-flange gasket (4) is matched with the fan-shaped concave-convex structures of the first flange (1) and the second flange (2); the gasket (4) between the flange plates is circular, and the outer diameter of the gasket is the same as that of the first flange plate (1) and that of the second flange plate (2).
3. A large-torque-engagement type marine main shaft connecting flange structure according to claim 2, wherein: and the surface of the gasket (4) between the flanges is covered with an insulating coating.
4. A large-torque-engagement type marine main shaft connecting flange structure according to claim 1, wherein: the contact surfaces of the fastener (3) and the first flange plate (1) and the second flange plate (2) are provided with fastener gaskets (5), and the periphery of the fastener (3) is provided with a sleeve (6) for realizing insulation.
5. The large-torque meshing type marine main shaft connecting flange structure according to claim 4, wherein: the fastener gasket (5) comprises a plurality of circular structures with holes in the middle, the number of the circular structures with holes in the middle is equal to that of the fasteners (3), and the circular structures with holes in the middle are connected into a circular arc shape.
6. The large-torque meshing type marine main shaft connecting flange structure according to claim 4, wherein: the fastener gasket (5) is of a circular ring structure with a hole in the middle, and the position of the hole corresponds to the position of the fastener (3).
7. The large-torque meshing type marine main shaft connecting flange structure according to claim 4, wherein: the length of the sleeve (6) is the thickness of the whole formed by connecting the first flange plate (1) and the second flange plate (2).
8. A large-torque-engagement type marine main shaft connecting flange structure according to claim 1, wherein: the fasteners (3) adopt bolts, the diameters of the bolts are determined according to the stress of the connecting flange structure, and the number of the bolts is adopted according to the requirement of load distribution uniformity.
9. A large-torque-engagement type marine main shaft connecting flange structure according to any one of claims 1 to 8, wherein: the connecting flange structure is positioned at a flange between the ship thrust bearing and the front support bearing; the first flange plate (1) and the second flange plate (2) are both made of steel.
10. A method of manufacturing a large-torque-engagement type marine main shaft connecting flange structure according to any one of claims 1 to 9, characterized by: the fan-shaped concave-convex structures of the first flange plate (1) and the second flange plate (2) are manufactured by finish machining; the flange washer (4) is provided with a bolt hole (7) in a boring way, the concave-convex structure is manufactured by finish machining, the surface of the concave-convex structure is sprayed with an insulating material, and the concave-convex structure is arranged between the first flange (1) and the second flange (2) and is precisely butted; putting bolt sleeves (6) into bolt holes (7) corresponding to the first flange plate (1) and the second flange plate (2), and fixing the fasteners (3) after penetrating through the sleeves (6); in the fixing process, a fastener gasket (5) is arranged between each fastener (3) and the contact surface of the first flange plate (1) and the second flange plate (2) for insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910876863.8A CN110594307A (en) | 2019-09-17 | 2019-09-17 | Large-torque meshing type marine main shaft connecting flange structure and machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910876863.8A CN110594307A (en) | 2019-09-17 | 2019-09-17 | Large-torque meshing type marine main shaft connecting flange structure and machining method |
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| CN110594307A true CN110594307A (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910876863.8A Pending CN110594307A (en) | 2019-09-17 | 2019-09-17 | Large-torque meshing type marine main shaft connecting flange structure and machining method |
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| CN (1) | CN110594307A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076244A (en) * | 2022-05-24 | 2022-09-20 | 马鞍山市广源法兰环件有限公司 | High-precision flange for connecting ship shafting |
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| CN210830202U (en) * | 2019-09-17 | 2020-06-23 | 中国人民解放军海军工程大学 | Large-torque meshing type marine main shaft connecting flange structure |
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| CN115076244A (en) * | 2022-05-24 | 2022-09-20 | 马鞍山市广源法兰环件有限公司 | High-precision flange for connecting ship shafting |
| CN115076244B (en) * | 2022-05-24 | 2024-04-05 | 马鞍山市广源法兰环件有限公司 | High-precision flange for ship shafting connection |
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