阅读说明：本技术 一种船舶驱动系统用加强轴 (Reinforcing shaft for ship driving system ) 是由 陈荣根 于 2021-09-24 设计创作，主要内容包括：本发明公开了一种船舶驱动系统用加强轴,包括轴体,所述轴体的上方套接有花键,在轴体的外壁沿轴体长度方向依次间隔排布有一个以上的螺纹孔,在花键上设置有与螺纹孔对齐的第一通孔,第一通孔内插接有一个与其中一个螺纹孔螺纹连接的锁紧螺丝,所述花键的上方环形设置有一个以上的固定孔,所述轴体包括内轴套和外轴套,在内轴套与外轴套之间设置有加强钢丝网,在外轴套的内部环形嵌入有一个以上的第一加强筋,在内轴套外环形设置有一个以上的第二加强筋,相邻两个所述的第一加强筋之间设置有一个所述的第二加强筋,所述第二加强筋与相邻的两个第一加强筋相抵,且所述第一加强筋与第二加强筋沿轴体长度方向沿伸。本结构提高轴体强度。(The invention discloses a reinforced shaft for a ship driving system, which comprises a shaft body, wherein a spline is sleeved above the shaft body, more than one threaded hole is sequentially arranged on the outer wall of the shaft body at intervals along the length direction of the shaft body, a first through hole aligned with the threaded hole is arranged on the spline, a locking screw in threaded connection with one of the threaded holes is inserted in the first through hole, more than one fixing hole is annularly arranged above the spline, the shaft body comprises an inner shaft sleeve and an outer shaft sleeve, a reinforced steel wire mesh is arranged between the inner shaft sleeve and the outer shaft sleeve, more than one first reinforcing rib is annularly embedded in the outer shaft sleeve, more than one second reinforcing rib is annularly arranged outside the inner shaft sleeve, one second reinforcing rib is arranged between two adjacent first reinforcing ribs, and the second reinforcing ribs are abutted against the two adjacent first reinforcing ribs, and the first reinforcing rib and the second reinforcing rib extend along the length direction of the shaft body. This structure improves axis body intensity.)

1. A reinforced shaft for a ship driving system comprises a shaft body (1) and is characterized in that a spline (2) is sleeved above the shaft body (1), more than one threaded hole (3) is sequentially arranged on the outer wall of the shaft body (1) along the length direction of the shaft body (1) at intervals, a first through hole (4) aligned with the threaded hole (3) is formed in the spline (2), a locking screw (5) in threaded connection with one of the threaded holes (3) is inserted in the first through hole (4), more than one fixing hole (6) is annularly arranged above the spline (2), the shaft body (1) comprises an inner shaft sleeve (26) and an outer shaft sleeve (27), a reinforced steel wire mesh (7) is arranged between the inner shaft sleeve (26) and the outer shaft sleeve (27), more than one first reinforcing rib (8) is annularly embedded in the outer shaft sleeve (27), more than one second reinforcing rib (9) is annularly arranged on the inner shaft sleeve (26), two adjacent first reinforcing ribs (8) are arranged between the two second reinforcing ribs (9), the second reinforcing ribs (9) are abutted to the two adjacent first reinforcing ribs (8), and the first reinforcing ribs (8) and the second reinforcing ribs (9) extend along the length direction of the shaft body (1).

2. The reinforcing shaft for a ship driving system according to claim 1, wherein: and a fourth reinforcing rib (10) consisting of a plurality of metal rods is arranged in the inner shaft sleeve (26).

3. The reinforcing shaft for a ship driving system according to claim 1, wherein: the outer shaft sleeve (27) is sequentially provided with a heat conduction layer (11), a copper powder wear-resistant layer (12), a first steel plate layer (13), a waterproof sealing layer (14), a fluorine resin layer (15), a heat dissipation layer (16) and a zinc oxide layer (17) from inside to outside; the heat dissipation layer (16) is formed by combining a net layer (18) composed of porous fibers as a main body and aerogel (19) coated on the surface of the net layer (18).

4. A reinforced shaft for a ship propulsion system according to claim 3, characterized in that: the inner shaft sleeve (26) comprises a second steel plate layer (21), a heat insulation layer (20) and a first flame-retardant layer (22) which are arranged from inside to outside in sequence.

5. The reinforcing shaft for a ship driving system according to claim 1, wherein: a second flame-retardant layer (23) is arranged on the outer side of the first reinforcing rib (8).

6. A reinforced shaft for a ship propulsion system according to claim 3, characterized in that: and an anticorrosive layer (24) is arranged on the outer side of the zinc oxide layer (17).

7. The reinforcing shaft for a ship driving system according to claim 6, wherein: the thickness of the anticorrosive layer (24) is 1-4 mm.

8. The reinforcing shaft for a ship driving system according to claim 1, wherein: the upper end part and the lower end part of the shaft body (1) are respectively provided with a following ring (26), more than one third reinforcing rib (25) is arranged between the upper following ring (26) and the lower following ring (26), and the third reinforcing ribs (25) are annularly distributed on the outer side of the shaft body (1).

9. A reinforced shaft for a ship propulsion system according to claim 3, characterized in that: the porosity of the aerogel (19) is 35-40%.

10. A reinforced shaft for a ship propulsion system according to claim 3, characterized in that: the first steel plate layer (13) comprises the following raw materials in parts by weight: 80-90 parts of reinforcing steel bar powder, 1-2 parts of nickel, 3-5 parts of chromium, 0.5-1 part of composite rare earth, 1-1.5 parts of iron and 0.1-0.5 part of preservative.

Technical Field

The invention relates to the technical field of shafts, in particular to a reinforcing shaft for a ship driving system.

Background

The shaft (draft) is a cylindrical piece that is threaded in the middle of the bearing or in the middle of the wheel or in the middle of the gear, but it is also partly square. A shaft is a mechanical part that supports and rotates with a rotating part to transmit motion, torque, or bending moment. Generally, the ship driving device is in a metal round rod shape, each section can have different diameters, and the ship driving device is widely applied to many places and is beneficial to a ship driving system.

The ship driving system is a power device arranged for ensuring the normal operation of the ship, and is used for providing various energies for the ship and using the energies so as to ensure the normal navigation of the ship and the normal life of personnel and finish various operations. The power plant of the ship is all machines and equipment for generating, transmitting and consuming various energies, and is an important component of the ship. The marine power plant comprises three main parts: the main power device of the ship needs to drive the ship blades to work, so that the main power device of the ship is provided with a motor, the output of the motor is necessarily provided with a connecting shaft, the connecting shaft needs to have enough strength and durability in the using process, and the overall structural strength of the shaft for the existing ship driving system is low, so that improvement is needed.

Disclosure of Invention

The present invention is directed to provide a reinforced shaft for a ship propulsion system, which solves the problem of low overall structural strength of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: a reinforced shaft for a ship driving system comprises a shaft body, wherein a spline is sleeved above the shaft body, more than one threaded hole is sequentially arranged on the outer wall of the shaft body at intervals along the length direction of the shaft body, a first through hole aligned with the threaded hole is arranged on the spline, a locking screw in threaded connection with one of the threaded holes is inserted in the first through hole, more than one fixing hole is annularly arranged above the spline, the shaft body comprises an inner shaft sleeve and an outer shaft sleeve, a reinforced steel wire mesh is arranged between the inner shaft sleeve and the outer shaft sleeve, more than one first reinforcing rib is annularly embedded in the outer shaft sleeve, more than one second reinforcing rib is arranged outside the inner shaft sleeve in an annular mode, one second reinforcing rib is arranged between every two adjacent first reinforcing ribs, the second reinforcing rib is abutted to the two adjacent first reinforcing ribs, and the first reinforcing ribs and the second reinforcing ribs extend along the length direction of the shaft body.

Preferably, in order to improve the reinforcing effect, a fourth reinforcing rib consisting of a plurality of metal rods is arranged inside the inner shaft sleeve, and further, the outer shaft sleeve is sequentially provided with a heat conduction layer, a copper powder wear-resistant layer, a first steel plate layer, a waterproof sealing layer, a fluorine resin layer, a heat dissipation layer and a zinc oxide layer from inside to outside; the heat dissipation layer is formed by combining a net layer composed of porous fibers serving as a main body and aerogel coated on the surface of the net layer.

Further, in order to improve the overall strength, the inner shaft sleeve comprises a second steel plate layer, a heat insulation layer and a first flame-retardant layer which are sequentially arranged from inside to outside.

Further, in order to improve flame retardancy, a second flame retardant layer is provided on the outer side of the first bead.

Furthermore, in order to improve the corrosion resistance, an anticorrosive layer is arranged on the outer side of the zinc oxide layer.

Further, the thickness of the anticorrosive coating is 1-4 mm.

Furthermore, in order to improve the overall strength, the upper end part and the lower end part of the shaft body are respectively provided with an extension ring, more than one third reinforcing rib is arranged between the upper extension ring and the lower extension ring, and the third reinforcing ribs are annularly distributed on the outer side of the shaft body.

Further, the porosity of the aerogel is 35-40%.

Further, the first steel plate layer comprises the following raw materials in parts by weight: 80-90 parts of reinforcing steel bar powder, 1-2 parts of nickel, 3-5 parts of chromium, 0.5-1 part of composite rare earth, 1-1.5 parts of iron and 0.1-0.5 part of preservative.

Compared with the prior art, the invention has the following beneficial effects: the invention has stronger integral strength and has the effects of corrosion resistance and heat insulation.

Drawings

FIG. 1 is a schematic structural view of a reinforcing shaft for a ship propulsion system in embodiment 1;

FIG. 2 is a sectional view of a shaft body in embodiment 1;

fig. 3 is a schematic cross-sectional structure of the outer sleeve in embodiment 1;

FIG. 4 is a sectional view of the heat dissipation layer in example 1;

fig. 5 is a structural schematic view of an inner hub in embodiment 1;

FIG. 6 is a sectional view of a shaft body in embodiment 2;

fig. 7 is a schematic cross-sectional structure of the outer sleeve in embodiment 2;

FIG. 8 is a sectional view of a shaft body in embodiment 3;

fig. 9 is a schematic structural view of a reinforcing shaft for a ship propulsion system according to embodiment 4.

Reference numerals: the axis body 1, the spline 2, screw hole 3, first through-hole 4, locking screw 5, fixed orifices 6, strengthen steel wire net 7, first strengthening rib 8, second strengthening rib 9, fourth strengthening rib 10, heat-conducting layer 11, copper powder wearing layer 12, first steel deck 13, waterproof sealing layer 14, fluororesin layer 15, heat dissipation layer 16, zinc oxide layer 17, stratum reticulare 18, aerogel 19, second steel deck 21, insulating layer 20, first fire-retardant layer 22, second fire-retardant layer 2, anticorrosive coating 2, along stretching ring 26, third strengthening rib 25, interior axle sleeve 26, outer axle sleeve 27.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

as shown in fig. 1-2, the present invention provides an embodiment: a reinforced shaft for a ship driving system comprises a shaft body 1, wherein a spline 2 is sleeved above the shaft body 1, more than one threaded hole 3 is sequentially arranged on the outer wall of the shaft body 1 along the length direction of the shaft body 1 at intervals, a first through hole 4 aligned with the threaded hole 3 is arranged on the spline 2, a locking screw 5 in threaded connection with one of the threaded holes 3 is inserted in the first through hole 4, more than one fixing hole 6 is annularly arranged above the spline 2, the shaft body 1 comprises an inner shaft sleeve 26 and an outer shaft sleeve 27, a reinforced steel wire mesh 7 is arranged between the inner shaft sleeve 26 and the outer shaft sleeve 27, more than one first reinforced rib 8 is annularly embedded in the inner part of the outer shaft sleeve 27, more than one second reinforced rib 9 is annularly arranged outside the inner shaft sleeve 26, and one second reinforced rib 9 is arranged between two adjacent first reinforced ribs 8, the second reinforcing ribs 9 are abutted to the two adjacent first reinforcing ribs 8, and the first reinforcing ribs 8 and the second reinforcing ribs 9 extend along the length direction of the shaft body 1.

The structure is provided with more than one threaded hole 3 arranged on the outer wall of a shaft body 1, then the spline 3 is moved to ensure that a first through hole 4 is aligned with one threaded hole 3 according to the installation requirement in the later period, then a locking screw 5 is in threaded connection with the corresponding threaded hole 3 after penetrating through the first through hole 4, then the shaft body 1 is installed on a motor of a corresponding ship driving system by utilizing the matching of a fixing hole 6 and the screw, the other end of the shaft body 1 is ensured to be connected with a paddle, and finally the shaft body is quickly installed according to the requirement, meanwhile, the structure improves the overall strength by arranging the shaft body 1 into an inner layer and an outer layer, arranging a reinforcing steel wire mesh 7 on an inner shaft sleeve 26 and an outer shaft sleeve 27 which are arranged inside and outside, additionally, more than one first reinforcing rib 8 is embedded in the inner ring of the outer shaft sleeve 27, and more than one second reinforcing rib 9 is arranged outside the inner shaft sleeve 26, two adjacent first strengthening rib 8 between be provided with one second strengthening rib 9 guarantees to influence each other between second strengthening rib 9 and the first strengthening rib 8, finally further improves bulk strength.

As shown in fig. 3-4, the outer sleeve 27 is further provided with a heat conducting layer 11, a copper powder wear-resistant layer 12, a first steel plate layer 13, a waterproof sealing layer 14, a fluororesin layer 15, a heat dissipation layer 16 and a zinc oxide layer 17 in sequence from inside to outside; the heat dissipation layer 16 is formed by combining a mesh layer 18 composed of porous fibers as a main body and aerogel 19 coated on the surface of the mesh layer 18.

As shown in fig. 5, further, in order to improve the overall strength, the inner sleeve 26 includes a second steel plate layer 21, a heat insulation layer 20, and a first flame retardant layer 22, which are sequentially disposed from inside to outside.

Further, the porosity of the aerogel 19 is 35-40%.

Further, the first steel deck 13 comprises the following raw materials in parts by weight: 80-90 parts of reinforcing steel bar powder, 1-2 parts of nickel, 3-5 parts of chromium, 0.5-1 part of composite rare earth, 1-1.5 parts of iron and 0.1-0.5 part of preservative.

In this embodiment, the first steel deck 13 includes the following raw materials in parts by weight: 85 parts of reinforcing steel bar powder, 1 part of nickel, 4 parts of chromium, 0.6 part of composite rare earth, 1 part of iron and 0.2 part of preservative.

Example 2:

as shown in fig. 6, the present invention provides an embodiment: a strengthening shaft for a ship driving system is characterized in that a fourth strengthening rib 10 consisting of a plurality of metal rods is arranged in an inner shaft sleeve 26, and the strength of an integral shaft body 1 is improved by further arranging the fourth strengthening rib 10.

Further, the outer shaft sleeve 27 is sequentially provided with a heat conduction layer 11, a copper powder wear-resistant layer 12, a first steel plate layer 13, a waterproof sealing layer 14, a fluorine resin layer 15, a heat dissipation layer 16 and a zinc oxide layer 17 from inside to outside; the heat dissipation layer 16 is formed by combining a net layer 18 composed of porous fibers serving as a main body and aerogel 19 coated on the surface of the net layer 18, the inner shaft sleeve 26 comprises a second steel plate layer 21, a heat insulation layer 20 and a first flame retardant layer 22 which are sequentially arranged from inside to outside, and a second flame retardant layer 23 is arranged on the outer side of the first reinforcing rib 8.

In this embodiment, the outer sleeve 27 is sequentially provided with the heat conducting layer 11, the copper powder wear-resistant layer 12, the first steel plate layer 13, the waterproof sealing layer 14, the fluororesin layer 15, the heat dissipation layer 16 and the zinc oxide layer 17 from inside to outside, so as to further improve the overall waterproof, anticorrosive, heat dissipation and antioxidant effects.

As shown in fig. 7, in order to further improve corrosion resistance, a corrosion-resistant layer 24 is provided on the outer side of the zinc oxide layer 17, and a corrosion-resistant effect is improved by providing the corrosion-resistant layer.

Further, the thickness of the anticorrosive layer 24 is 2 m.

Further, the aerogel 19 had a porosity of 35%.

Further, the first steel deck 13 comprises the following raw materials in parts by weight: 81 parts of reinforcing steel bar powder, 1.5 parts of nickel, 3.5 parts of chromium, 0.6 part of composite rare earth, 1.5 parts of iron and 0.2 part of preservative.

Example 3:

as shown in fig. 8, the present invention provides an embodiment: a fourth reinforcing rib 10 consisting of a plurality of metal rods is arranged inside an inner shaft sleeve 26, and further, a heat conduction layer 11, a copper powder wear-resistant layer 12, a first steel plate layer 13, a waterproof sealing layer 14, a fluorine resin layer 15, a heat dissipation layer 16 and a zinc oxide layer 17 are sequentially arranged on an outer shaft sleeve 27 from inside to outside; the heat dissipation layer 16 is formed by combining a mesh layer 18 composed of porous fibers as a main body and aerogel 19 coated on the surface of the mesh layer 18.

Further, in order to improve the overall strength, the inner sleeve 26 includes a second steel plate layer 21, a heat insulation layer 20 and a first flame retardant layer 22 which are sequentially arranged from inside to outside.

Further, a second flame retardant layer 23 is provided outside the first beads 8 in order to improve flame retardancy.

Example 4:

as shown in fig. 9, the present invention provides an embodiment: a reinforcing shaft for a ship driving system is further provided, wherein the thickness of the anticorrosive coating 24 is 3 mm.

Further, in order to improve the overall strength, the upper end portion and the lower end portion of the shaft body 1 are provided with the extending rings 26, more than one third reinforcing rib 25 is arranged between the upper extending ring 26 and the lower extending ring 26, the third reinforcing ribs 25 are annularly distributed on the outer side of the shaft body 1, the upper end portion and the lower end portion of the shaft body 1 are provided with the extending rings 26, and more than one third reinforcing rib 25 is arranged between the upper extending ring 26 and the lower extending ring 26, so that the overall strength is further improved.

The aerogel 19 had a porosity of 38%.

In this embodiment, the first steel deck 13 includes the following raw materials in parts by weight: 90 parts of reinforcing steel bar powder, 2 parts of nickel, 5 parts of chromium, 1 part of composite rare earth, 1.5 parts of iron and 0.5 part of preservative.

Example 5:

the embodiment provided by the invention comprises the following steps: a first steel deck 13 comprises the following raw materials in parts by weight: 85 parts of reinforcing steel bar powder, 1 part of nickel, 5 parts of chromium, 0.8 part of composite rare earth, 1.2 parts of iron and 0.3 part of preservative.

The aerogel 19 had a porosity of 39%.

The axis constructed by the structural embodiment is subjected to the following parameter tests with the existing common axis, and comparative experimental data are obtained:

therefore, the experiment proves that the reinforcing shaft for the ship driving system, which is prepared by the invention, has stronger integral strength compared with the prior art, and has the effects of corrosion resistance and heat insulation.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.