A lifting propeller platform for installing ship propellers

Abstract

The application discloses a lifting propeller platform for ship propeller installation, which comprises a base, a lifting platform is arranged in the middle of the base through four lifting mechanisms, and a propeller platform is arranged on the lifting platform; the propeller platform comprises a propeller platform base, two bottom tower sections are respectively arranged on the propeller platform base through two groups of movable sliding plates, a top tower section is arranged above each bottom tower section, a propeller hub adjusting cross beam is arranged above the top tower section through a hydraulic device, and a propeller adjusting screw rod is arranged on the propeller hub adjusting cross beam; a working platform is further arranged on the top tower section, and a crawling ladder reaching the working platform is arranged on the bottom tower section and the top tower section; the propeller platform can be used for position adjustment of a ship propeller with large weight and size in a labor-saving and accurate manner, and is very convenient and effective.

Description

Technical Field

[0001] The present invention relates to shipbuilding technology, and more particularly to a lifting propeller platform for installing ship propellers. Background Art

[0002] A ship's rudder and oars are its steering and propulsion systems. Rudders are typically made of steel, resulting in large dimensions, a high center of gravity, heavy weight, and a small cross-sectional width. Oars are typically made of brass, with complex blade shapes and a cylindrical center structure, resulting in heavy weight and a small support point. During installation, both rudders and oars weigh significantly, often exceeding 100 tons. High positioning accuracy is required, and installation space is limited, making large cranes impractical. Traditional installation methods rely on mounting lugs above the stern of the ship and using a large-tonnage hoist to pull the components. This is labor-intensive, has poor positioning accuracy, and poses safety risks as workers work around the rudder and oars.

[0003] In addition, when installing the rudder and propeller of a ship, since the rudder and propeller are very heavy, a large platform is often required for transportation when moving the rudder and propeller to the designated position. During the transportation of the large platform, a steering process is inevitable. During the steering process, the track design and walking wheel design in traditional technology are often very inconvenient. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a lifting paddle platform for installing ship paddles, so that the paddles of the ship can be installed steadily, smoothly, accurately and conveniently using the platform of the present invention.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A lifting paddle platform for installing a ship paddle comprises a base, a lifting platform is erected in the middle of the base via four lifting mechanisms, and a paddle platform is arranged on the lifting platform;

[0007] The lifting platform includes a lifting base and four lifting installation bodies respectively installed at the four corners of the lifting base; the four lifting installation bodies are respectively fixed to four lifting mechanisms;

[0008] The lifting installation body includes a support column with a bottom end fixed to the lifting base, a lifting connecting plate extending horizontally from the top of the support column in a direction away from the lifting base, and a vertically transparent bolt hole is opened at the end of the lifting connecting plate away from the support column;

[0009] A plurality of adjustment hydraulic cylinders are installed on the edge of the upper surface of the lifting base, and the telescopic ends of the adjustment hydraulic cylinders are perpendicular to the edge of the lifting platform and face inward;

[0010] The lifting mechanism includes a lifting base, a vertical lifting guide column is fixed on the lifting base, a sliding sleeve on the lifting guide column is provided with a guide column sleeve, the guide column sleeve is connected to a horizontal lifting support plate, a lifting ear plate is fixed to the bottom of the lifting support plate, the lifting ear plate is hinged to a connecting block through a second pin shaft, and the connecting block is fixed to the top end of the telescopic end of a lifting hydraulic cylinder;

[0011] The lifting support plate is supported under the lifting connection plate and fixed to the lifting connection plate by bolts;

[0012] The four lifting bases are respectively fixed at the four corners of the upper surface of the base;

[0013] The paddle platform includes a paddle platform base, and the paddle platform base includes a base bottom plate, which is divided into a symmetrical left platform and a right platform by a central axis. A group of slide groups is provided on the left platform and the right platform, and each slide group includes three dovetail groove fixed base plates arranged in a front-to-rear manner; each dovetail groove fixed base plate extends in the left and right directions and is slidably provided with a dovetail groove slide plate; a base bolt connector is provided at one end of the upper surface of the dovetail groove fixed base plate away from the central axis, and an adjusting screw rod passes through the base bolt connector, one end of the adjusting screw rod is connected to the end of the dovetail groove slide plate, and the other end is connected to a hand wheel;

[0014] Each set of slide plates is provided with a bottom tower section, which includes a bottom tower section bottom plate, three bottom tower section columns vertically erected on the bottom tower section bottom 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 slot slide plates are aligned in the vertical direction;

[0015] 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 of the working platform; three top tower section columns are connected to the bottom of the working platform, and a top tower section bottom plate is fixed to the bottom end of each top tower section column; the three top tower section bottom plates are respectively connected and fixed to the three bottom tower section top plates;

[0016] A bottom ladder is provided on the side wall of the bottom tower section column; a top ladder is provided on the side wall of the top tower section column, and the bottom ladder is vertically connected to the top ladder; the top ladder is located below the edge of the staff entrance;

[0017] A supporting crossbeam is also supported and fixed on the top tower section column, and at least two propeller adjustment hydraulic cylinders are provided on the upper surface of the supporting crossbeam, and a propeller adjustment hydraulic cylinder guide rod is vertically slidably provided next to each propeller adjustment hydraulic cylinder; a hub adjustment crossbeam is commonly supported on the propeller adjustment hydraulic cylinders, and the bottom end of the hub adjustment crossbeam is connected to the top end of the propeller adjustment hydraulic cylinder guide rod; the center of the upper surface of the hub adjustment crossbeam is concave inward and a propeller adjustment bolt connector is provided in the center, and a horizontal propeller adjustment bolt is connected to the propeller adjustment bolt connector through a bolt hole;

[0018] The propeller adjustment bolt on each top tower section is horizontally directed towards another top tower section;

[0019] The middle part of the propeller platform base is arranged on the lifting base; the four corners of the propeller platform base are tightly arranged on the base through the lifting positioning bolts.

[0020] A plurality of ball devices are longitudinally and transversely arranged and fixed on the upper surface of the lifting base, the ball device comprises a cylindrical ball base vertically fixed on the upper surface of the lifting base, and a ball is arranged in the ball base; a ball cover plate is arranged on the ball base, a cover plate opening is arranged in the center of the ball cover plate, and the top of the ball protrudes from the cover plate opening.

[0021] The guide column sleeve comprises a bottom circular column body and an upper circular column body connected above the bottom circular column body;

[0022] The bottom circular column body comprises a self-lubricating graphite copper sleeve sleeved on the outer wall of the lifting guide column and a sleeve body sleeved on the outer wall of the self-lubricating graphite copper sleeve; the bottom of the self-lubricating graphite copper sleeve is connected to a horizontal circular bottom plate, the circular bottom plate extends to the position directly below the sleeve body and is connected to the sleeve body through bolts; the top of the sleeve body extends a circular top plate in the direction of the lifting guide column, and the circular top plate is tightly arranged above the self-lubricating graphite copper sleeve; the circular top plate and the circular bottom plate both leave a gap with the outer wall of the lifting guide column;

[0023] The upper circular column body is sleeved on the lifting guide column and connected to the upper surface of the circular top plate; a gap is left between the upper circular column body and the lifting guide column.

[0024] A middle tower section is further arranged between the top tower section and the bottom tower section; the middle tower section comprises a middle tower section bottom plate, a middle tower section top plate and a middle tower section column connected between 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.

[0025] The sidewall of the middle tower section column is provided with a middle ladder; the middle ladder is connected between the bottom ladder and the top ladder.

[0026] The top ladder is surrounded by a ladder guard ring.

[0027] The bottom ladder is arranged only on the sidewall of the middle one of the bottom tower section columns; the top ladder is arranged only on the sidewall of the middle one of the top tower section columns.

[0028] A bottom column reinforcing body is arranged between the bottom tower section column and the bottom tower section bottom plate.

[0029] A lifting lug fixing block is further arranged below the middle part of the bottom surface of the propeller platform base; a propeller platform moving lifting lug is arranged on the side surface of the lifting lug fixing block.

[0030] A safety guardrail is arranged on the edge of the working platform.

[0031] The advantages of the present application over the prior art are:

[0032] 1、The lifting mechanism can ensure the high levelness and smooth lifting of the lifting base during the lifting process, because the lifting ear plate can adjust its advancing direction by rotating during the lifting process, so that the lifting support plate can always move along the lifting guide column, and the lifting support plate can ensure that the lifting base always maintains a horizontal state.

[0033] 2、The present application designs a tower-shaped propeller platform according to the size characteristics of large propellers, which can allow workers to stand at a high position to observe the installation position of the propeller, and can use the sliding plate group and the lifting platform to drive the propeller platform to move or lift, and adjust the fixed position of the propeller through the propeller adjusting hydraulic cylinder and the propeller adjusting bolt, so as to adjust the position of the propeller with large weight and size more easily, which is very convenient and effective, and fills the gap in the position adjustment technology during propeller installation. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a schematic diagram of the lifting propeller platform of the present application;

[0035] Figure 2 is a schematic diagram of the propeller platform of the present application;

[0036] Figure 3 is a schematic diagram of the propeller platform base of the present application;

[0037] Figure 4 is a schematic diagram of the bottom tower section of the present application;

[0038] Figure 5 is a schematic diagram of the middle tower section of the present application;

[0039] Figure 6 is a schematic diagram of the top tower section of the present application;

[0040] Figure 7 is a schematic diagram of the propeller hub adjusting cross beam of the present application;

[0041] Figure 8 is a schematic diagram of the lifting platform of the present application;

[0042] Figure 9 is a schematic diagram of the ball device of the present application;

[0043] Figure 10 is an exploded view of the ball device of the present application;

[0044] Figure 11 is a top view of the lifting mechanism of the present application;

[0045] Figure 12 is a side view of the lifting mechanism of the present application;

[0046] Figure 13 It is an axial cross-sectional view of the guide post sleeve and the guide post sleeve of the lifting mechanism of the present invention.

[0047] In the picture:

[0048] 1. Base, 2. Lifting platform, 13. Lifting mechanism, 4. Paddle platform;

[0049] 131. Lifting guide column, 132. Lifting base, 133. Guide column sleeve, 134. Lifting support plate, 135. Lifting ear plate, 136. Pin shaft, 137. Self-lubricating graphite copper sleeve, 138. Circular bottom plate, 139. Upper circular cylinder;

[0050] 21. Lifting mounting body, 22. Lifting base, 23. Ball bearing device, 231. Ball bearing base, 232. Ball bearing, 233. Ball bearing cover plate, 24. Adjustment hydraulic cylinder.

[0051] 41. Propeller platform base, 42. Bottom tower section, 43. Middle tower section, 44. Top tower section, 45. Propeller hub adjustment beam; 46. Propeller platform moving lug;

[0052] 411. Base bottom plate, 412. Dovetail groove fixed bottom plate, 413. Dovetail groove slide plate, 414. Adjusting screw, 415. Handwheel, 416. Lifting positioning bolt, 417. Quick-disassembly nut, 421. Bottom tower section bottom 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 bottom plate, 433. Middle tower section column, 434. Middle ladder, 441. Top tower section bottom plate, 442. Top tower section column, 443. Support beam, 444. Propeller adjustment hydraulic cylinder, 445. Propeller adjustment hydraulic cylinder guide rod, 446. Top ladder, 447. Ladder guard ring, 448. Working platform, 449. Safety guardrail, 452. Propeller adjustment bolt connector, 453. Propeller adjustment bolt. DETAILED DESCRIPTION

[0053] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0054] like Figures 1 to 13 As shown, the present invention provides a lifting paddle platform for installing a ship paddle, comprising a base 1, a lifting platform 2 is erected in the middle of the base 1 through four lifting mechanisms 13, and a paddle platform 4 is arranged on the lifting platform 2;

[0055] The lifting platform 2 includes a lifting base 22 and four lifting installation bodies 21 respectively installed at the four corners of the lifting base 22; the four lifting installation bodies 21 are respectively fixed to the four lifting mechanisms 13;

[0056] The lifting installation body 21 includes a support column with its bottom end fixed to the lifting base 22, and a lifting connecting plate extending horizontally from the top of the support column in a direction away from the lifting base 22, and a vertically transparent bolt hole is opened at the end of the lifting connecting plate away from the support column;

[0057] A plurality of adjustment hydraulic cylinders 24 are installed at the edge of the upper surface of the lifting base 22, and the telescopic ends of the adjustment hydraulic cylinders 24 are perpendicular to the edge of the lifting platform 2 and face inward;

[0058] The lifting mechanism 13 includes a lifting base 132, a vertical lifting guide column 131 is fixed above the lifting base 132, a guide column sleeve 133 is provided on the sliding sleeve of the lifting guide column 131, and the guide column sleeve 133 is connected to a horizontal lifting support plate 134. A lifting ear plate 135 is fixed to the bottom of the lifting support plate 134. The lifting ear plate 135 is hinged to a connecting block via a second pin 136. The connecting block is fixed to the top of the telescopic end of a lifting hydraulic cylinder;

[0059] The lifting support plate 134 is supported below the lifting connection plate and fixed to the lifting connection plate by bolts;

[0060] The four lifting bases 132 are respectively fixed to the four corners of the upper surface of the base 1;

[0061] The paddle platform 4 includes a paddle platform base 41, which includes a base bottom plate 411. The base bottom plate 411 is divided into a symmetrical left platform and a right platform by a central axis. A group of slide groups is provided on the left platform and the right platform, and each slide group includes three dovetail groove fixed base plates 412 arranged in a front-to-rear manner; each dovetail groove fixed base plate 412 extends in the left and right directions and is slidably mounted with a dovetail groove slide 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 rod 414 passes through the base bolt connector, one end of the adjusting screw rod 414 is connected to the end of the dovetail groove slide plate 413, and the other end is connected to a hand wheel 415;

[0062] Each set of slide plates is provided with a bottom tower section 42, which includes a bottom tower section bottom plate 421, three bottom tower section columns 422 vertically erected on the bottom tower section bottom 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 are vertically aligned with the three dovetail slot slide plates 413;

[0063] 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; three top tower section columns 442 are connected to the bottom of the working platform 448, and a top tower section bottom plate 441 is fixed to the bottom end of each top tower section column 442; the three top tower section bottom plates 441 are respectively connected and fixed to the three bottom tower section top plates 424;

[0064] A bottom ladder is provided on the side wall of the bottom tower section column 422; a top ladder 446 is provided on the side wall of the top tower section column 442, and the bottom ladder is vertically connected to the top ladder 446; the top ladder 446 is located below the edge of the staff entrance;

[0065] A supporting crossbeam 443 is also supported and fixed on the top tower section column 442. At least two propeller adjustment hydraulic cylinders 444 are provided on the upper surface of the supporting crossbeam 443. A propeller adjustment hydraulic cylinder guide rod 445 is vertically slidably provided next to each propeller adjustment hydraulic cylinder 444. A hub adjustment crossbeam 45 is commonly supported on the propeller adjustment hydraulic cylinders 444. The bottom end of the hub adjustment crossbeam 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 crossbeam 45 is concave 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 a bolt hole.

[0066] The propeller adjustment bolts 453 on each top tower section 44 are horizontally oriented toward the other top tower section 44;

[0067] The middle part of the paddle platform base 41 is arranged on the lifting base 22 ; the four corners of the paddle platform base 41 are fastened to the base 1 through lifting positioning bolts 416 .

[0068] A plurality of ball devices 23 are fixed on the upper surface of the lifting base 22 in an arranged vertical and horizontal manner. The ball device 23 includes a cylindrical ball base 231 vertically fixed on the upper surface of the lifting base 22, and a ball 232 is arranged in the ball base 231; a ball cover plate 233 is provided on the upper cover of the ball base 231, and a cover plate opening is opened in the center of the ball cover plate 233, and the top of the ball 232 protrudes from the cover plate opening.

[0069] The guide column sleeve 133 includes: a bottom circular cylinder, and an upper circular cylinder 139 connected to the bottom circular cylinder;

[0070] The bottom annular cylinder includes a self-lubricating graphite copper sleeve 137 sleeved on the outer wall of the lifting guide post 131, and a sleeve sleeve sleeved on the outer wall of the self-lubricating graphite copper sleeve 137. The bottom of the self-lubricating graphite copper sleeve 137 is connected to a horizontal annular bottom plate 138, which extends to the bottom of the sleeve and is bolted to the sleeve. The top of the sleeve extends toward the lifting guide post 131 to form a circular top plate, which is tightly attached to the top of the self-lubricating graphite copper sleeve 137. Both the circular top plate and the circular bottom plate 138 leave a gap with the outer wall of the lifting guide post 131.

[0071] The upper circular cylinder 139 is sleeved on the lifting guide column 131 and the bottom end is connected to the upper surface of the circular top plate; a gap is left between the upper circular cylinder 139 and the lifting guide column 131.

[0072] A middle tower section 43 is also arranged 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 connected between the middle tower section bottom plate 432 and the middle tower section bottom plate 432; the middle tower section bottom plate 432 is connected to the top of the bottom tower section top plate 424, and the middle tower section top plate 431 is connected to the bottom of the top tower section bottom plate 441.

[0073] A middle ladder 434 is provided on the side wall of the middle tower section column 433 , and the middle ladder 434 is connected between the bottom ladder and the top ladder 446 .

[0074] A ladder guard ring 447 is provided around the top ladder 446 .

[0075] The bottom ladder is only provided on the side wall of a middle bottom tower section column 422 ; the top ladder 446 is only provided on the side wall of a middle top tower section column 442 .

[0076] A bottom column reinforcement body 423 is provided between the bottom tower section column 422 and the bottom tower section bottom plate 421 .

[0077] A lifting lug fixing block is further provided below the middle portion 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.

[0078] A safety guardrail 449 is provided at the edge of the working platform 448 .

[0079] The use and advantages of the lifting mechanism 13 alone are as follows: the lifting base 132 and the bottom end of the lifting hydraulic cylinder are fixed on a fixed platform (base 1), and the lifting support plate 134 can be pushed up and down along the lifting guide column 131 by the telescopic end of the lifting hydraulic cylinder. The object to be lifted is placed on the lifting support plate 134, and the object is fastened to the lifting support plate 134 through bolt holes or other means to complete the lifting of the object. In addition, for the lifting of a large platform (such as the lifting base 132 in the present invention), a device of the present invention can be set under multiple corners of the large platform. By synchronously controlling the lifting hydraulic cylinders of multiple devices of the present invention, the lifting of the large platform can be achieved. The present invention incorporates a self-lubricating graphite copper sleeve 137, which only contacts the lifting guide post 131 during movement, resulting in a very smooth lifting process. Furthermore, due to the hinged arrangement of the lifting lug plate 135, even if the hydraulic cylinder telescopic rod is not completely parallel to the lifting guide post 131 during installation, the lifting lug plate 135 can adjust its forward direction by rotating, allowing the lifting support plate 134 to consistently move along the lifting guide post 131, thus maintaining a horizontal position. This results in a smooth and stable lifting process. While the upper annular cylinder 139 generally does not contact the lifting guide rod, the relative position of the upper annular cylinder 139 and the lifting guide post 131 ensures axial alignment during installation. Even if the self-lubricating graphite copper sleeve 137 becomes severely worn, it can still provide effective guidance for the guide post sleeve 133, ensuring the horizontal position of the lifting support plate 134. Furthermore, filling the space between the upper annular cylinder 139 and the lifting guide post 131 with lubricating oil further ensures smooth lifting.

[0080] The lifting mechanism 13 is connected to the lifting connecting plate, and the lifting mechanism 13 is installed on the base 1 , so that the lifting base 132 can be lifted and lowered on the base 1 .

[0081] During use, the paddle platform 4 is mounted on the lifting base 22. The paddle platform 4 is supported and slides to adjust its position via numerous balls 232. The lifting base 22 can be lifted by the lifting mechanism 13, thereby lifting the paddle platform 4 to the installation position. Then, the paddle platform 4 is pushed to slide on the balls 232 by multiple adjustment hydraulic cylinders 24, and its horizontal position can be fine-tuned until it reaches the precise installation position.

[0082] For the installation of the propeller, the propeller platform 4 can be first raised to the installation position by the lifting platform 2, and the propeller platform 4 can be fixed to the base 1 by contacting the base 1 with the lifting positioning bolts 416; next, the upper staff climbs onto the two symmetrical working platforms 448 by climbing the ladder, and the lower staff adjusts the distance between the working platforms 448 by coarse adjustment of the handwheel 415 based on the distance estimation of the upper staff, so that the two ends of the propeller can be placed on the two hub adjustment beams 45 respectively. After the two ends of the propeller are placed on the two hub adjustment beams 45 respectively by the crane, the upper staff can continue to adjust the height or level of the hub adjustment beam 45 along the guide direction of the propeller adjustment hydraulic cylinder guide rod 445 by extending and retracting the propeller adjustment hydraulic cylinder 444, thereby adjusting the height or level of the propeller; the upper staff can also continue to adjust the position of the propeller by the propeller adjustment bolt 453 and finally clamp the propeller by the propeller adjustment bolt 453 to make it reach the optimal installation position.

[0083] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A lifting propeller platform for installing a ship propeller, characterized in that: It comprises a base (1), a lifting platform (2) is erected in the middle of the base (1) via four lifting mechanisms (13), and a paddle platform (4) is provided on the lifting platform (2); The lifting platform (2) includes a lifting base (22) and four lifting installation bodies (21) respectively installed at four corners of the lifting base (22); the four lifting installation bodies (21) are respectively fixed to four lifting mechanisms (13); The lifting installation body (21) includes a support column with a bottom end fixed to the lifting base (22), a lifting connection plate horizontally extending from the top end of the support column in a direction away from the lifting base (22), and a vertically transparent bolt hole is provided at one end of the lifting connection plate away from the support column; A plurality of adjustment hydraulic cylinders (24) are installed at the edge of the upper surface of the lifting base (22), and the telescopic ends of the adjustment hydraulic cylinders (24) are perpendicular to the edge of the lifting platform (2) and face inward; The lifting mechanism (13) includes a lifting base (132), a vertical lifting guide column (131) is fixed above the lifting base (132), a guide column sleeve (133) is provided on the sliding sleeve of the lifting guide column (131), and the guide column sleeve (133) is connected to a horizontal lifting support plate (134), a lifting ear plate (135) is fixed at the bottom of the lifting support plate (134), and the lifting ear plate (135) is hinged to a connecting block through a second pin shaft (136), and the connecting block is fixed to the top end of the telescopic end of a lifting hydraulic cylinder; The lifting support plate (134) is supported below the lifting connection plate and fixed to the lifting connection plate by bolts; The four lifting bases (132) are respectively fixed to the four corners of the upper surface of the base (1); The paddle platform (4) includes a paddle platform base (41), and the paddle platform base (41) includes a base bottom plate (411), and the base bottom plate (411) is divided into a symmetrical left platform and a right platform by a central axis. A group of slide plates are provided on the left platform and the right platform, and each group of slide plates includes three dovetail groove fixed base plates (412) arranged in a front-to-rear manner; each dovetail groove fixed base plate (412) extends in the left and right directions and is slidably provided with a dovetail groove slide plate (413); a base bolt connector is provided on the end of the upper surface of the dovetail groove fixed base plate (412) away from the central axis, and an adjusting screw rod (414) passes through the base bolt connector, one end of the adjusting screw rod (414) is connected to the end of the dovetail groove slide plate (413), and the other end is connected to a hand wheel (415); Each group of the slide groups is provided with a bottom tower section (42), the bottom tower section (42) comprising a bottom tower section bottom plate (421), three bottom tower section columns (422) vertically erected on the bottom tower section bottom 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 slot slides (413) are aligned in the vertical direction; Each of the bottom tower sections (42) is provided with a top tower section (44); each of the top tower sections (44) comprises a horizontal working platform (448), and a staff entrance is provided in the middle of the working platform (448); three top tower section columns (442) are connected to the bottom of the working platform (448), and a top tower section bottom plate (441) is fixed to the bottom end of each of the top tower section columns (442); the three top tower section bottom plates (441) are respectively connected and fixed to the three bottom tower section top plates (424); The side wall of the bottom tower section column (422) is provided with a bottom ladder; the side wall of the top tower section column (442) is provided with a top ladder (446), and the bottom ladder is vertically connected to the top ladder (446); the top ladder (446) is located below the edge of the staff entrance; A support beam (443) is also supported and fixed on the top tower section column (442), and at least two propeller adjustment hydraulic cylinders (444) are provided on the upper surface of the support beam (443), and a propeller adjustment hydraulic cylinder guide rod (445) is vertically slidably provided next to each propeller adjustment hydraulic cylinder (444); a hub adjustment beam (45) is commonly supported and provided on the propeller adjustment hydraulic cylinders (444), and 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 concave inward and a propeller adjustment bolt connector (452) is provided at the center, and a horizontal propeller adjustment bolt (453) is connected to the propeller adjustment bolt connector (452) through a bolt hole; The propeller adjustment bolt (453) on each top tower section (44) is horizontally oriented toward another top tower section (44); The middle part of the paddle platform base (41) is arranged on the lifting base (22); the four corners of the paddle platform base (41) are fastened to the base (1) by lifting positioning bolts (416); The lifting mechanism (13) is installed on the base (1).

2. The lifting propeller platform for installing a ship propeller according to claim 1, characterized in that: A plurality of ball devices (23) are fixed on the upper surface of the lifting base (22) in a vertical and horizontal arrangement. The ball device (23) includes a cylindrical ball base (231) vertically fixed on the upper surface of the lifting base (22), and a ball (232) is arranged in the ball base (231); a ball cover plate (233) is provided on the upper cover of the ball base (231), and a cover plate opening is provided in the center of the ball cover plate (233), and the top of the ball (232) protrudes from the cover plate opening.

3. The lifting propeller platform for installing a ship propeller according to claim 1, characterized in that: The guide column sleeve (133) comprises: a bottom circular cylinder and an upper circular cylinder (139) connected to the top of the bottom circular cylinder; The bottom annular cylinder comprises a self-lubricating graphite copper sleeve (137) sleeved on the outer wall of the lifting guide column (131) and a sleeve sleeved on the outer wall of the self-lubricating graphite copper sleeve (137); the bottom of the self-lubricating graphite copper sleeve (137) is connected to a horizontal annular bottom plate (138), the annular bottom plate (138) extends to the bottom of the sleeve and is connected to the sleeve by bolts; the top of the sleeve extends a annular top plate toward the lifting guide column (131), the annular top plate is tightly attached to the top of the self-lubricating graphite copper sleeve (137); the annular top plate and the annular bottom plate (138) both leave a gap with the outer wall of the lifting guide column (131); The upper annular column (139) is sleeved on the lifting guide column (131) and the bottom end is connected to the upper surface of the annular top plate; a gap is left between the upper annular column (139) and the lifting guide column (131).

4. The lifting propeller platform for installing a ship propeller according to claim 1, characterized in that: A middle tower section (43) is further provided between the top tower section (44) and the bottom tower section (42); the middle tower section (43) comprises a middle tower section bottom plate (432), a middle tower section top plate (431), and a middle tower section column (433) connected between 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).

5. The lifting propeller platform for installing a ship propeller according to claim 4, characterized in that: A middle ladder (434) is provided on the side wall of the middle tower section column (433), and the middle ladder (434) is connected between the bottom ladder and the top ladder (446).

6. The lifting propeller platform for installing a ship propeller according to claim 1, characterized in that: The top ladder (446) is surrounded by a ladder guard ring (447).

7. The lifting propeller platform for installing a ship propeller according to claim 1, characterized in that: The bottom ladder is only provided on the side wall of a middle bottom tower section column (422); and the top ladder (446) is only provided on the side wall of a middle top tower section column (442).

8. The lifting propeller platform for installing a ship propeller according to claim 1, characterized in that: A bottom column reinforcement body (423) is provided between the bottom tower section column (422) and the bottom tower section bottom plate (421).

9. The lifting propeller platform for installing a ship propeller according to claim 1, characterized in that: A lifting lug fixing block is also provided below the middle portion 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.

10. The lifting propeller platform for installing a ship propeller according to claim 9, characterized in that: The edge of the working platform (448) is provided with a safety guardrail (449).

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