Assembly type connecting structure of stern shaft and stern shaft sleeve for ship

Abstract

The invention discloses a marine fabricated stern shaft and stern shaft sleeve connecting structure. The marine fabricated stern shaft and stern shaft sleeve connecting structure comprises a stern shaft body, a stern shaft sleeve, a fabricated contact roller and an assembling assembly. An assembly type contact roller is installed in an assembly groove, a rotating groove in one end of the assembly type contact roller is connected to a positioning protruding block in a sleeving mode, then an opening and closing rod is rotated, the opening and closing rod drives a built-in rotating column to rotate, the built-in rotating column rotates and drives two moving blocks to horizontally move, and therefore the two moving columns are driven by a driving block to relatively horizontally move; and the end of the movable column is inserted into a rotating groove in the other end of the assembly type contact roller, so that the assembly type contact roller is positioned, meanwhile, the assembly type contact roller rotates between a positioning convex block and the movable column, and the outer side of the periphery of the stern shaft body can be subjected to abutting positioning through the multiple assembly type contact rollers. And a rotary contact positioning structure is formed, abrasion and friction high temperature are reduced, and meanwhile mounting and dismounting are very convenient.

Description

Technical Field

[0001] The invention belongs to the field of manufacturing and assembling of marine accessories, and in particular relates to a marine assembled stern shaft and stern shaft sleeve connection structure. Background Art

[0002] The stern shaft is also called the tail shaft. It is the last section of the shaft in the shaft system. The head end flange is connected to the intermediate shaft flange with a tight-fitting bolt. The tail end is in a cone shape for installing a propeller. The stern shaft is generally forged with high-quality carbon steel. The existing stern shaft is generally installed in the stern shaft sleeve through connection, and is supported and protected by the stern shaft sleeve. The existing stern shaft sleeve generally includes an external shell and an internal liner. The internal liner is installed in the external shell. Generally, the liner is fixed to the inner side of the external shell by bonding. In this way, through the connection of the stern shaft, the outer side of the stern shaft is abutted against the inner side of the liner. When the stern shaft rotates, the stern shaft will have long-term friction with the liner, so that wear will occur between the stern shaft and the liner. At the same time, the wear generates a lot of heat, which will cause wear and deformation of the components for a long time, and they need to be replaced regularly. At the same time, the replacement is very inconvenient. For this reason, it is necessary to upgrade the structure to reduce wear and improve the convenience of assembly and disassembly of the structure. Summary of the invention

[0003] In view of the above-mentioned deficiencies of the prior art, the present invention solves the problem of providing a marine assembled stern shaft and stern shaft sleeve connection structure which reduces wear and is convenient for assembly and disassembly.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows: A marine assembled stern shaft and stern shaft sleeve connection structure, comprising a stern shaft body, a stern shaft sleeve, an assembled contact roller, and an assembly component; the stern shaft body is connected and installed in the inner center of the stern shaft sleeve; a plurality of assembled contact rollers are evenly installed around the inner sides of the stern shaft body, and the assembled contact rollers on the inner sides of the stern shaft body are coaxially distributed; a plurality of assembly grooves are evenly arranged around the inner sides of the stern shaft body; an assembled contact roller is respectively installed in each of the assembly grooves; a plurality of assembly components are evenly installed around the stern shaft sleeve; the assembly component comprises an opening and closing rod, a positioning protrusion, and a moving column; the inner and outer sides of the assembly grooves are arranged in a uniform manner. A positioning protrusion is installed on each side; multiple opening and closing rods are evenly installed around the two ends of the stern shaft sleeve for rotation; multiple moving columns are evenly installed around the two sides of the interior of the stern shaft sleeve; the opening and closing rods are connected to the moving columns; rotation grooves are respectively provided at both ends of the assembled contact roller; the rotating groove at one end of the assembled contact roller is sleeved on the positioning protrusion, the opening and closing rod rotates to drive the moving column to translate, and the end of the moving column is inserted into the rotating groove at the other end of the assembled contact roller, and the two ends of the assembled contact roller are rotatably installed between the positioning protrusion and the moving column; the outer side of the stern shaft body is abutted and positioned by multiple assembled contact rollers.

[0005] Furthermore, the assembly component also includes a built-in rotating column and a moving block; a plurality of transmission cavities are evenly arranged around the stern shaft sleeve, and the transmission cavity is located on the outside of the assembly groove; a built-in rotating column is rotatably installed in each transmission cavity, and two moving blocks are respectively threaded on both sides of the built-in rotating column, and the moving blocks are slidably and clamped on the transmission cavity, and a moving column is respectively installed on the inner side of the moving blocks; the two ends of the built-in rotating column are respectively connected to the opening and closing rod; the outer end of the opening and closing rod extends to the outside of the end of the stern shaft sleeve; the opening and closing rod rotates and drives the built-in rotating column to rotate, the built-in rotating column rotates and drives the two moving blocks to translate, and the driving block drives the moving column to translate.

[0006] Furthermore, a plurality of fastening grooves are evenly arranged around both ends of the stern shaft sleeve, and the outer ends of the opening and closing rods extend to the fastening grooves; external threaded sections are arranged around the outer ends of the opening and closing rods, and fastening ring bodies are arranged on the external threaded sections; and the fastening ring bodies are pressed against or separated from the inner side walls of the fastening grooves after rotation.

[0007] Furthermore, the movable column is in an L-shaped structure.

[0008] Furthermore, the outer end of the moving column installed inside the moving block extends to the inside of the stern shaft sleeve; the inner side of the assembly groove is provided with a through hole; the outer end of the moving column is slidably connected with the assembly groove through the through hole.

[0009] Furthermore, wear-resistant coatings are respectively provided in the rotation grooves at both ends of the assembled contact roller.

[0010] Furthermore, the outer sides of the assembled contact roller are coated with a wear-resistant and high-temperature resistant coating.

[0011] The beneficial effects of the present invention are as follows: The present invention installs the assembled contact roller in the assembly groove, so that the rotating groove at one end of the assembled contact roller is sleeved on the positioning protrusion, and then the opening and closing rod is rotated, the opening and closing rod drives the built-in rotating column to rotate, the built-in rotating column rotates and drives the two moving blocks to translate, so that the two moving columns are driven to translate relative to each other through the driving block, and the end of the moving column is inserted into the rotating groove at the other end of the assembled contact roller, so that the assembled contact roller is positioned, and at the same time, the assembled contact roller rotates between the positioning protrusion and the moving column, so that the outer sides of the stern shaft body can be abutted and positioned by multiple assembled contact rollers, and when the stern shaft body rotates, the multiple assembled contact rollers also rotate, so as to form a rotating contact positioning structure, reduce wear and friction high temperature, and at the same time, the present invention is very convenient to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention.

[0013] Figure 2 For the present invention Figure 1 Schematic diagram of the structure on one side.

[0014] Figure 3 For the present invention Figure 2 Schematic diagram of the structure of the separation of the assembled contact roller and the movable column.

[0015] Figure 4 It is a schematic diagram of the disassembled structure of the assembled contact roller and the assembly groove of the present invention.

[0016] Figure 5 It is a schematic diagram of the cross-sectional structure of the abutment between the assembled contact roller and the stern shaft body of the present invention. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] like Figures 1 to 5 As shown, a marine assembled stern shaft and stern shaft sleeve connection structure comprises a stern shaft body 1, a stern shaft sleeve 2, an assembled contact roller 3, and an assembly component 4; the stern shaft body 1 is connected and installed in the inner center of the stern shaft sleeve 2; a plurality of assembled contact rollers 3 are evenly installed around the inner sides of the stern shaft body 1, and the assembled contact rollers 3 on the inner sides of the stern shaft body 1 are coaxially distributed; a plurality of assembly grooves 11 are evenly provided around the inner sides of the stern shaft body 1; an assembled contact roller 3 is respectively installed in each of the assembly grooves 11; a plurality of assembly components 4 are evenly installed around the stern shaft sleeve 2; the assembly component 4 comprises an opening and closing rod 41, a positioning protrusion 42 and a moving column 43; the inner and outer sides of the assembly grooves 11 are respectively A positioning protrusion 42 is installed; multiple opening and closing rods 41 are evenly installed around the two ends of the stern shaft sleeve 2 for rotation; multiple moving columns 43 are evenly installed around the two sides of the inside of the stern shaft sleeve 2; the opening and closing rods 41 are connected to the moving columns 43; rotation grooves 31 are respectively provided at both ends of the assembled contact roller 3; the rotation groove 31 at one end of the assembled contact roller 3 is sleeved on the positioning protrusion 42, the opening and closing rod 41 rotates to drive the moving column 43 to translate, and the end of the moving column 43 is inserted into the rotation groove 31 at the other end of the assembled contact roller 3, and the two ends of the assembled contact roller 3 are rotatably installed between the positioning protrusion 42 and the moving column 43; the outer side of the four sides of the stern shaft body 1 is abutted and positioned by multiple assembled contact rollers 3.

[0019] like Figures 1 to 5As shown, in order to drive the moving column 43 horizontally, it is further preferred that the assembly component 4 also includes a built-in rotating column 44 and a moving block 45; a plurality of transmission cavities 21 are evenly arranged around the stern sleeve 2, and the transmission cavity 21 is located on the outside of the assembly groove 11; a built-in rotating column 44 is rotatably installed in each of the transmission cavities 21, and two moving blocks 45 are respectively threadedly screwed on both sides of the built-in rotating column 44, and the moving blocks 45 are slidably clamped and installed on the transmission cavity 21, and a moving column 43 is respectively installed on the inner side of the moving block 45; the two ends of the built-in rotating column 44 are respectively connected to the opening and closing rod 41; the outer end of the opening and closing rod 41 extends to the outer side of the end of the stern sleeve 2; the opening and closing rod 41 rotates and drives the built-in rotating column 44 to rotate, the built-in rotating column 44 rotates and drives the two moving blocks 45 to translate, and the driving block drives the moving column 43 to translate.

[0020] like Figures 1 to 5 As shown, in order to lock the opening and closing rod 41 and improve the stability of the structure, further, multiple fastening grooves 22 are evenly opened around the two ends of the stern shaft sleeve 2, and the outer end of the opening and closing rod 41 extends to the fastening groove 22; the outer end of the opening and closing rod 41 is provided with an external thread section around the outer end, and a fastening ring body 46 is provided on the external thread section; after the fastening ring body 46 rotates, it presses against or separates from the inner side wall of the fastening groove 22. Further, the movable column 43 is an L-shaped structure.

[0021] like Figures 1 to 5 As shown, in order to facilitate the insertion of the moving column 43, further, the outer end of the moving column 43 installed inside the moving block 45 extends to the inside of the stern shaft sleeve 2; the inner side of the assembly groove 11 is provided with a through hole 111; the outer end of the moving column 43 is slidably inserted into the assembly groove 11 through the through hole 111. Further, the rotating grooves 31 at both ends of the assembled contact roller 3 are respectively provided with a wear-resistant coating. Further, the outer side of the assembled contact roller 3 is coated with a wear-resistant and high-temperature resistant coating.

[0022] The present invention installs the assembled contact roller 3 in the assembly groove 11, so that the rotating groove 31 at one end of the assembled contact roller 3 is sleeved on the positioning protrusion 42, and then the opening and closing rod 41 is rotated, the opening and closing rod 41 drives the built-in rotating column 44 to rotate, the built-in rotating column 44 rotates and drives the two moving blocks 45 to translate, so that the two moving columns 43 are driven to translate relative to each other through the driving block, and the end of the moving column 43 is inserted into the rotating groove 31 at the other end of the assembled contact roller 3, so that the assembled contact roller 3 is positioned, and the assembled contact roller 3 rotates between the positioning protrusion 42 and the moving column 43, so that the outer sides of the stern shaft body 1 can be abutted and positioned by multiple assembled contact rollers 3, when the stern shaft body 1 rotates, multiple assembled contact rollers 3 also rotate, so that a positioning structure of rotating contact is formed, which reduces the generation of wear and friction high temperature, and the present invention is very convenient to install and disassemble.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A marine assembled stern shaft and stern shaft sleeve connection structure, characterized in that: The invention comprises a stern shaft body, a stern shaft sleeve, an assembled contact roller, and an assembly component; the stern shaft body is connected and installed in the inner center of the stern shaft sleeve; a plurality of assembled contact rollers are evenly installed around the inner sides of the stern shaft body, and the assembled contact rollers on the inner sides of the stern shaft body are coaxially distributed; a plurality of assembly grooves are evenly arranged around the inner sides of the stern shaft body; an assembled contact roller is respectively installed in each of the assembly grooves; a plurality of assembly components are evenly installed around the stern shaft sleeve; the assembly component comprises an opening and closing rod, a positioning protrusion and a moving column; a positioning protrusion is respectively installed inside and outside the assembly groove; The stern shaft sleeve is provided with a plurality of opening and closing rods which are evenly and rotatably installed around the two ends of the stern shaft sleeve; the internal sides of the stern shaft sleeve are evenly and rotatably installed with a plurality of moving columns; the opening and closing rods are connected with the moving columns; the two ends of the assembled contact roller are respectively provided with rotation grooves; the rotating groove at one end of the assembled contact roller is sleeved on the positioning convex block, the opening and closing rods rotate to drive the moving column to translate, and the end of the moving column is inserted into the rotating groove at the other end of the assembled contact roller, and the two ends of the assembled contact roller are rotatably installed between the positioning convex block and the moving column; the outer sides of the stern shaft body are abutted and positioned by a plurality of assembled contact rollers.

2. The marine assembled stern shaft and stern shaft sleeve connection structure according to claim 1, characterized in that: The assembly component also includes a built-in rotating column and a moving block; a plurality of transmission cavities are evenly arranged around the stern shaft sleeve, and the transmission cavity is located on the outside of the assembly groove; a built-in rotating column is rotatably installed in each of the transmission cavities, and two moving blocks are respectively threadedly screwed on both sides of the built-in rotating column, and the moving blocks are slidably clamped and installed on the transmission cavity, and a moving column is respectively installed on the inner side of the moving blocks; the two ends of the built-in rotating column are respectively connected to the opening and closing rod; the outer end of the opening and closing rod extends to the outer side of the end of the stern shaft sleeve; the opening and closing rod rotates and drives the built-in rotating column to rotate, the built-in rotating column rotates and drives the two moving blocks to translate, and the driving block drives the moving column to translate.

3. The marine assembled stern shaft and stern shaft sleeve connection structure according to claim 2, characterized in that: A plurality of fastening grooves are evenly arranged around both ends of the stern shaft sleeve, and the outer end of the opening and closing rod extends to the fastening groove; an external thread section is arranged around the outer end of the opening and closing rod, and a fastening ring body is arranged on the external thread section; after the fastening ring body is rotated, it presses against or separates from the inner side wall of the fastening groove.

4. The marine assembled stern shaft and stern shaft sleeve connection structure according to claim 2, characterized in that: The movable column is in an L-shaped structure.

5. The marine assembled stern shaft and stern shaft sleeve connection structure according to claim 2, characterized in that: The outer end of the moving column installed inside the moving block extends to the inside of the stern shaft sleeve; the inner sides of the assembly grooves are respectively provided with penetration holes; the outer end of the moving column is slidably connected with the assembly groove through the penetration holes.

6. The marine assembled stern shaft and stern shaft sleeve connection structure according to claim 1, characterized in that: Wear-resistant coatings are respectively provided in the rotation grooves at both ends of the assembled contact roller.

7. The marine assembled stern shaft and stern shaft sleeve connection structure according to claim 1, characterized in that: The outer sides of the assembled contact roller are coated with a wear-resistant and high-temperature resistant coating.

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