A propeller platform for ship propeller installation

Abstract

This invention discloses a propeller platform for ship propeller installation, including a propeller platform base. The base has two lower tower sections mounted on two sets of movable sliding plates. Each lower tower section has a top tower section above it. A propeller hub adjustment beam is mounted on the top tower section via a hydraulic device, and a propeller adjustment screw is mounted on the propeller hub adjustment beam. A working platform is also mounted on the top tower section, and ladders are provided on both the lower and top tower sections to reach the working platform. This invention, by placing the propeller on the two ship propeller hub adjustment beams, enables relatively effortless and precise position adjustment of ship propellers with large weight and size, which is very convenient and effective.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and more specifically, to a propeller platform for mounting ship propellers. Background Technology

[0002] Ship propellers are the power units of ships. Propellers are usually made of steel and are characterized by their large size, high center of gravity, and small cross-sectional width. During the installation of ship propellers, due to their great weight, often exceeding 100 tons, positioning them is quite difficult. Therefore, there is an urgent need for a propeller platform that can be used to adjust the propeller position. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a propeller platform for installing ship propellers, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A propeller platform for ship propeller installation includes a propeller platform base, which includes a base plate. The base plate is divided into a symmetrical left platform and a right platform by a central axis. Each left and right platform is provided with a set of sliding plates. Each set of sliding plates includes three dovetail groove fixed base plates arranged in a front-to-back manner. Each dovetail groove fixed base plate extends to the left and right and slides with a dovetail groove sliding plate. A base bolt connector is provided at the end of the upper surface of the dovetail groove fixed base plate opposite to the central axis. An adjusting screw passes through the base bolt connector. One end of the adjusting screw is connected to the end of the dovetail groove sliding plate, and the other end is connected to a handwheel.

[0006] Each set of skateboards is equipped with a bottom tower section, which includes a bottom tower section base plate, three bottom tower section columns erected vertically on the bottom tower section base plate, and a bottom tower section top plate fixed to the top of each bottom tower section column; the three bottom tower section columns and the three dovetail groove skateboards are aligned in the vertical direction.

[0007] Each bottom tower section is supported by a top tower section; each top tower section includes a horizontal working platform with a staff entrance in the middle; the bottom of the working platform is connected to three top tower section columns, and the bottom of each top tower section column is fixed with a top tower section base plate; the three top tower section base plates are respectively connected and fixed to the top plates of the three bottom tower sections.

[0008] The bottom tower section column has a bottom ladder on its side wall; the top tower section column has a top ladder on its side wall, and the bottom ladder and the top ladder are vertically connected; the top ladder is located below the edge of the staff entrance.

[0009] The top-level tower section column is also supported and fixed with a support beam. At least two propeller adjustment hydraulic cylinders are installed on the upper surface of the support beam. Each propeller adjustment hydraulic cylinder is also vertically slidably installed with a propeller adjustment hydraulic cylinder guide rod. The propeller adjustment hydraulic cylinders are all supported by a hub adjustment beam. The bottom end of the hub adjustment beam is connected to the top end of the propeller adjustment hydraulic cylinder guide rod. The center of the upper surface of the hub adjustment beam is concave and a propeller adjustment bolt connector is installed in the center. A horizontal propeller adjustment bolt is connected to the propeller adjustment bolt connector through bolt holes.

[0010] The propeller adjusting bolts on each top tower section are all oriented horizontally toward the other top tower section.

[0011] A middle tower section is also provided between the top tower section and the bottom tower section; the middle tower section includes a middle tower section bottom plate, a middle tower section top plate, and a middle tower section column connecting the middle tower section bottom plate and the middle tower section bottom plate; the middle tower section bottom plate is connected above the bottom tower section top plate, and the middle tower section top plate is connected below the top tower section bottom plate.

[0012] The side walls of the middle tower section columns are equipped with middle ladders, which connect the bottom ladders and the top ladders.

[0013] The top-floor ladder is surrounded by a ladder guardrail.

[0014] The bottom ladder is only located on the side wall of the middle bottom tower section column; the top ladder is only located on the side wall of the middle top tower section column.

[0015] A bottom column reinforcement is provided between the bottom tower section column and the bottom tower section base plate.

[0016] A lifting lug fixing block is also provided at the lower center of the bottom surface of the paddle platform base, and a paddle platform moving lifting lug is provided on the side of the lifting lug fixing block.

[0017] Vertical lifting and positioning bolts penetrating the base plate are also installed at the four corners of the base plate. Locking the upper and lower lifting and positioning bolts can ensure the stability of the propeller platform and prevent the propeller from tipping over.

[0018] Safety railings are installed along the edges of the work platform.

[0019] The advantages of this invention compared to the prior art are that, taking into account the large size of the propeller, it designs a tower-shaped propeller platform, which allows workers to stand at a higher position to observe the installation position of the propeller. Furthermore, the platform can be moved using a sliding plate assembly, and the fixed position of the propeller can be adjusted by using the propeller adjustment hydraulic cylinder, propeller adjustment bolts, etc. This allows for relatively effortless position adjustment of propellers that are both heavy and large, which is very convenient and effective, filling the gap in the technology of position adjustment during propeller installation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the propeller platform of the present invention;

[0021] Figure 2 This is a schematic diagram of the paddle platform base of the present invention;

[0022] Figure 3 This is a schematic diagram of the bottom tower section of the present invention;

[0023] Figure 4 This is a schematic diagram of the middle tower section of the present invention;

[0024] Figure 5 This is a schematic diagram of the top tower section of the present invention;

[0025] Figure 6 This is a schematic diagram of the rotor hub adjustment beam of the present invention.

[0026] In the diagram, 41 is the propeller platform base, 42 is the bottom tower section, 43 is the middle tower section, 44 is the top tower section, 45 is the propeller hub adjustment beam, and 46 is the propeller platform moving lug.

[0027] 411. Base plate; 412. Dovetail groove fixed base plate; 413. Dovetail groove sliding plate; 414. Adjusting screw; 415. Handwheel; 416. Lifting positioning bolt; 417. Quick-release nut; 421. Bottom tower section base plate; 422. Bottom tower section column; 423. Bottom column reinforcement; 424. Bottom tower section top plate; 431. Middle tower section top plate; 432. Middle tower section base plate; 433. Middle tower section column; 434. Middle ladder; 441. Top tower section base plate; 442. Top tower section column; 443. Support beam; 444. Propeller adjusting hydraulic cylinder; 445. Propeller adjusting hydraulic cylinder guide rod; 446. Top ladder; 447. Ladder guard ring; 448. Working platform; 449. Safety railing; 452. Propeller adjusting bolt connector; 453. Propeller adjusting bolt. Detailed Implementation

[0028] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0029] like Figures 1 to 6As shown, the present invention discloses a propeller platform for ship propeller installation, including a propeller platform base 41, the propeller platform base 41 including a base plate 411, the base plate 411 being divided into a symmetrical left platform and a right platform by a central axis, and a set of sliding plates being provided on both the left and right platforms, each set of sliding plates including three dovetail groove fixed base plates 412 arranged in a front-to-back manner; each dovetail groove fixed base plate 412 extends to the left and right and slides to support a dovetail groove sliding plate 413; a base bolt connector is provided at one end of the upper surface of the dovetail groove fixed base plate 412 away from the central axis, and an adjusting screw 414 passes through the base bolt connector, one end of the adjusting screw 414 being connected to the end of the dovetail groove sliding plate 413, and the other end being connected to a handwheel 415;

[0030] Each set of skateboards is equipped with a bottom tower section 42, which includes a bottom tower section base plate 421, three bottom tower section columns 422 vertically erected on the bottom tower section base plate 421, and a bottom tower section top plate 424 fixed to the top of each bottom tower section column 422; the three bottom tower section columns 422 and the three dovetail groove skateboards 413 are aligned in the vertical direction.

[0031] Each bottom tower section 42 is supported by a top tower section 44; each top tower section 44 includes a horizontal working platform 448, with a staff entrance in the middle of the working platform 448; the bottom of the working platform 448 is connected to three top tower section columns 442, and the bottom end of each top tower section column 442 is fixed with a top tower section base plate 441; the three top tower section base plates 441 are respectively connected and fixed to the top plates 424 of the three bottom tower sections.

[0032] A bottom-level ladder is provided on the side wall of the bottom tower section column 422; a top-level ladder 446 is provided on the side wall of the top tower section column 442, and the bottom-level ladder and the top-level ladder 446 are vertically connected; the top-level ladder 446 is located below the edge of the staff entrance.

[0033] A support beam 443 is also fixedly supported on the top tower section column 442. At least two propeller adjustment hydraulic cylinders 444 are provided on the upper surface of the support beam 443. Each propeller adjustment hydraulic cylinder 444 is also vertically slidably provided with a propeller adjustment hydraulic cylinder guide rod 445. The propeller adjustment hydraulic cylinders 444 are all supported by a hub adjustment beam 45. The bottom end of the hub adjustment beam 45 is connected to the top end of the propeller adjustment hydraulic cylinder guide rod 445. The center of the upper surface of the hub adjustment beam 45 is recessed inward and a propeller adjustment bolt connector 452 is provided in the center. A horizontal propeller adjustment bolt 453 is connected to the propeller adjustment bolt connector 452 through bolt holes.

[0034] The propeller adjusting bolts 453 on each top tower section 44 are all horizontally oriented toward the other top tower section 44.

[0035] A middle tower section 43 is also provided between the top tower section 44 and the bottom tower section 42; the middle tower section 43 includes a middle tower section bottom plate 432, a middle tower section top plate 431, and a middle tower section column 433 connecting the middle tower section bottom plate 432 and the middle tower section bottom plate 432; the middle tower section bottom plate 432 is connected above the bottom tower section top plate 424, and the middle tower section top plate 431 is connected below the top tower section bottom plate 441.

[0036] The side wall of the middle tower section column 433 is provided with a middle ladder 434, which connects the bottom ladder and the top ladder 446.

[0037] A ladder guardrail 447 is provided around the top ladder 446.

[0038] The bottom ladder is only installed on the side wall of the middle bottom tower section column 422; the top ladder 446 is only installed on the side wall of the middle top tower section column 442.

[0039] A bottom column reinforcement 423 is provided between the bottom column support 422 and the bottom plate 421 of the bottom tower section.

[0040] A lifting lug fixing block is also provided at the lower center of the bottom surface of the paddle platform base 41, and a paddle platform moving lifting lug 46 is provided on the side of the lifting lug fixing block.

[0041] The base plate 411 is also equipped with lifting and positioning bolts 416 that penetrate vertically through the base plate 411 at its four corners. The lifting and positioning bolts 416 are fixed by quick-release nuts 417. When it is necessary to loosen them, simply loosen the quick-release nuts 417.

[0042] The edge of the work platform 448 is equipped with a safety railing 449.

[0043] Before using this invention, the operator first adjusts the level of the base plate 411 by contacting it with the ground or other platforms below using the lifting positioning bolts 416, thus fixing the base plate 411 to the platform below. Next, the operator climbs onto two symmetrical working platforms 448 using a ladder. The operator below, based on the distance estimated by the operator above, coarsely adjusts the spacing of the propeller hub adjustment beams 45 using the handwheel 415, allowing both ends of the propeller to be placed on the two propeller hub adjustment beams 45 respectively. After placing both ends of the propeller on the two propeller hub adjustment beams 45, the operator above can continue to adjust the height or level of the propeller by extending and retracting the propeller adjustment hydraulic cylinder 444, causing the propeller hub adjustment beams 45 to adjust along the guide direction of the propeller adjustment hydraulic cylinder guide rod 445. The operator above can also further adjust the position of the propeller using the propeller adjustment bolts 453 and finally clamp the propeller using the propeller adjustment bolts 453 to achieve the optimal installation position. In general, the invention can also be placed on a mobile lifting platform by moving the lifting lug 46 via the paddle platform, and the subsequent installation process can be achieved by mobile lifting.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A propeller platform for mounting ship propellers, characterized in that, The system includes a propeller platform base (41), which includes a base plate (411). The base plate (411) is divided into a symmetrical left platform and a right platform by a central axis. A set of sliding plates is provided on both the left platform and the right platform. Each set of sliding plates includes three dovetail groove fixed base plates (412) arranged in a front-to-back manner. Each dovetail groove fixed base plate (412) extends to the left and right and is slidably mounted with a dovetail groove sliding plate (413). A base bolt connector is provided on the upper surface of the dovetail groove fixed base plate (412) away from the central axis. An adjusting screw (414) passes through the base bolt connector. One end of the adjusting screw (414) is connected to the end of the dovetail groove sliding plate (413), and the other end is connected to a handwheel (415). The spacing of the propeller hub adjusting beam (45) is adjusted by coarse adjustment of the handwheel (415). Each set of the slide plates is supported by a bottom tower section (42), which includes a bottom tower section base plate (421), three bottom tower section columns (422) vertically erected on the bottom tower section base plate (421), and a bottom tower section top plate (424) fixed to the top of each bottom tower section column (422); the three bottom tower section columns (422) and the three dovetail slide plates (413) are aligned in the vertical direction; Each bottom tower section (42) is supported by a top tower section (44); each top tower section (44) includes a horizontal working platform (448), with a staff entrance in the middle of the working platform (448); the bottom of the working platform (448) is connected to three top tower section columns (442), and the bottom end of each top tower section column (442) is fixed with a top tower section base plate (441); the three top tower section base plates (441) are respectively connected and fixed to the three bottom tower section top plates (424); The bottom tower section column (422) is provided with a bottom ladder on its side wall; the top tower section column (442) is provided with a top ladder (446) on its side wall, and the bottom ladder and the top ladder (446) are vertically connected; the top ladder (446) is located below the edge of the staff entrance; A support beam (443) is also fixedly supported on the top tower section column (442). At least two propeller adjusting hydraulic cylinders (444) are provided on the upper surface of the support beam (443). A propeller adjusting hydraulic cylinder guide rod (445) is vertically slidably provided next to each propeller adjusting hydraulic cylinder (444). The propeller hub adjusting beam (45) is jointly supported on the propeller adjusting hydraulic cylinders (444). The bottom end of the propeller hub adjusting beam (45) is connected to the top end of the propeller adjusting hydraulic cylinder guide rod (445). The upper surface of the propeller hub adjusting beam (45) is concave inward and a propeller adjusting bolt connector (452) is provided at the center. A horizontal propeller adjusting bolt (453) is connected to the propeller adjusting bolt connector (452) through bolt holes. The propeller adjusting bolts (453) on each of the top tower sections (44) are horizontally oriented toward the other top tower section (44).

2. The propeller platform for ship propeller installation according to claim 1, characterized in that, A middle tower section (43) is also provided between the top tower section (44) and the bottom tower section (42); the middle tower section (43) includes a middle tower section bottom plate (432), a middle tower section top plate (431), and a middle tower section column (433) connecting the middle tower section bottom plate (432) and the middle tower section bottom plate (432); the middle tower section bottom plate (432) is connected above the bottom tower section top plate (424), and the middle tower section top plate (431) is connected below the top tower section bottom plate (441).

3. The propeller platform for ship propeller installation according to claim 2, characterized in that, The middle tower section column (433) has a middle ladder (434) on its side wall, which is connected between the bottom ladder and the top ladder (446).

4. The propeller platform for ship propeller installation according to claim 1, characterized in that, The top-level ladder (446) is surrounded by a ladder guard ring (447).

5. The propeller platform for ship propeller installation according to claim 1, characterized in that, The bottom ladder is only located on the side wall of the middle bottom tower section column (422); the top ladder (446) is only located on the side wall of the middle top tower section column (442).

6. The propeller platform for ship propeller installation according to claim 1, characterized in that, A bottom column reinforcement (423) is provided between the bottom column support (422) and the bottom plate (421) of the bottom column.

7. The propeller platform for ship propeller installation according to claim 1, characterized in that, A lifting lug fixing block is also provided below the center of the bottom surface of the paddle platform base (41), and a paddle platform moving lifting lug (46) is provided on the side of the lifting lug fixing block.

8. The propeller platform for ship propeller installation according to claim 7, characterized in that, The base plate (411) is also provided with lifting positioning bolts (416) that penetrate vertically through the base plate (411) at the four corners.

9. The propeller platform for ship propeller installation according to claim 1, characterized in that, The edge of the work platform (448) is provided with a safety railing (449).

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