A hoisting device and hoisting method for rudder blade assembly

Abstract

The invention discloses a hoisting device and a hoisting method for assembling a rudder blade, belonging to the technical field of hoisting equipment, comprising a load-bearing platform component and an imitation rudder blade component, the load-bearing platform component comprising a load-bearing frame, a lifting device is installed at the lower end of the load-bearing frame, an adjusting rail is slidably connected inside the load-bearing platform component, a moving block is slidably connected inside the adjusting rail, a plug column is inserted on the moving block, a threaded rod threadedly connected to the adjusting rail is rotatably connected inside the load-bearing frame, a motor is fixedly connected to the side wall of the load-bearing frame, and the output end of the motor is fixedly connected to the threaded rod. The device can make the light-weight imitation rudder blade component temporarily replace the rudder blade and be pre-placed at the rudder arm through the cooperation of the load-bearing platform component and the imitation rudder blade component, so that it can be quickly adjusted according to the installation position of the rudder blade, and when the rudder blade is installed for the second time, there is no need to make too many adjustments, thereby effectively reducing the probability of collision between the rudder blade and the rudder arm and avoiding safety problems.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting equipment, in particular to a hoisting device and a hoisting method for rudder blade assembly. Background Art

[0002] The rudder blade is usually made of metal and has a flat shape. One end is connected to the rudder and the other end is connected to the rudder post. The shape and size of the rudder blade depends on the size, type and purpose of the ship. The design of the rudder blade is crucial to the ship's handling performance. Generally, the larger the rudder blade, the more obvious the steering effect of the ship, but it will also increase the hydrodynamic resistance. The shape of the rudder blade will also affect the way the water flows through the rudder, thereby affecting the steering effect and stability of the ship. The rudder blade is usually installed at the rear of the rudder. Its rotation can be controlled by a steering wheel or a joystick to change the course of the ship. The rudder post is connected to the control device in the cab through a connecting rod. The captain can control the angle of the rudder blade by operating the control device, thereby controlling the steering of the ship. The rudder blade is generally installed by hoisting. During hoisting, the height and angle can be adjusted by a crane or a gantry crane to install the rudder blade from land or ship to the designated position.

[0003] A Chinese patent discloses a rudder blade installation vehicle for an oil platform support ship and a rudder blade lashing and hoisting method (authorization announcement number CN102019997B). The patent includes a vehicle body, a driving wheel set arranged at the front and rear ends of the vehicle body, a steering wheel set, and a rudder blade support and fixing device arranged on the upper side of the vehicle body. The upper side of the vehicle body is provided with a 1:18 inclined platform with the same slope as the slipway, and the rudder blade support and fixing device is arranged on the inclined platform; the rudder blade support and fixing device includes a rudder blade support steel cofferdam and multiple steel cable hooks. The rudder blade lashing and hoisting method of the present invention is as follows: hoist the rudder blade into the rudder blade support steel cofferdam; tie a steel cable with a hand-pulled hoist between each lifting ear on the upper part of both sides of the rudder blade and each corresponding steel cable hook, and drive a wooden wedge to completely fix the rudder blade; the installation vehicle runs to the optimal installation position of the rudder blade at the stern of the ship, and lifts the rudder blade to install it in place. The oil platform support ship of the present invention has a simple structure and is easy to use. The present invention lashes and fixes the rudder blade upright on the installation vehicle and directly transports it to the stern of the ship, realizing fast and safe mechanized operation.

[0004] In the above-mentioned patent, the rudder blade will deviate and shake during the lifting process. Although the rudder blade angle can be adjusted by using a hand winch, this adjustment method is not only laborious but also inefficient. In addition, the irregular shaking of the rudder blade will also cause it to collide with the stern rudder arm under the action of inertia, shortening the service life of the rudder arm and causing safety problems. Therefore, how to improve the installation efficiency of the rudder blade and reduce the probability of collision between the rudder blade and the rudder arm has become a problem that needs to be solved at present. Summary of the invention

[0005] The object of the present invention is to provide a hoisting device and a hoisting method for rudder blade assembly to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A hoisting device for rudder blade assembly, comprising a load-bearing platform component and an imitation rudder blade component, the load-bearing platform component comprising a load-bearing frame, a lifting device is installed at the lower end of the load-bearing frame, an adjusting rail is slidably connected inside the load-bearing platform component, a moving block is slidably connected inside the adjusting rail, a plug-in column is plugged into the moving block, a threaded rod threadedly connected to the adjusting rail is rotatably connected inside the load-bearing frame, a motor is fixedly connected to the side wall of the load-bearing frame, and the output end of the motor is fixedly connected to the threaded rod, and a lifting component is installed on the load-bearing frame;

[0008] The lifting assembly includes two hanging plates hinged on the load-bearing frame, and the side walls of the two hanging plates facing each other are slidably connected with sliders. A connecting column and a cross bar are fixedly connected between the two hanging plates. A fixing assembly is installed on the connecting column, and a hydraulic assembly is installed on the cross bar.

[0009] As a further solution of the present invention, the fixing assembly includes a support block slidably connected to the connecting column, and the plug column is fixedly connected to the lower side wall of the support block, the upper side wall of the support block is fixedly connected to an electromagnet, the upper side wall of the support block is rotatably connected to two symmetrically arranged guide clamps, and the two guide clamps are fixedly connected to a limiting rod on one side wall opposite to the other.

[0010] As a further solution of the present invention, the fixed assembly also includes a pressure block slidably connected to the inside of the support block, an oil cylinder is fixedly connected to the inside of the support block, a movable plug is slidably connected to the inside of the oil cylinder, a connecting rod is fixedly connected between the movable plug and the pressure block, a telescopic cylinder is hinged between the guide clamps between the support blocks, and an oil pipe is connected between the telescopic cylinder and the oil cylinder.

[0011] As a further solution of the present invention, the imitation rudder blade assembly includes an imitation rudder blade block, and a light generator is installed inside a mounting hole of the imitation rudder blade block.

[0012] As a further scheme of the present invention, the hydraulic assembly includes a rotating sleeve rotatably connected to the cross bar, a transmission oil storage cylinder rotatably connected to the load-bearing frame, a lower cylinder fixedly connected to the transmission oil storage cylinder, an upper cylinder fixedly connected to the rotating sleeve is inserted on the lower cylinder, a buffer assembly located inside the lower cylinder is fixedly connected to the lower end of the upper cylinder, and an angle trigger assembly is provided on the upper sleeve of the lower cylinder.

[0013] As a further solution of the present invention, the buffer assembly includes a hydraulic plug fixedly connected to the upper cylinder, and a plurality of oil holes and slide grooves are drilled on the hydraulic plug, and the slide grooves are connected to the oil holes.

[0014] As a further solution of the present invention, a blocking block is slidably connected inside the slide groove, and a return spring is fixedly connected between the blocking block and the hydraulic plug.

[0015] As a further solution of the present invention, the angle trigger assembly includes an electric magnet ring block mounted on the lower cylinder, a plurality of push-pull rods in contact with the electric magnet ring block are fixedly connected to the upper cylinder, a fixed telescopic rod is fixedly connected between the electric magnet ring block and the transmission oil storage cylinder, and the fixed telescopic rod is connected to the lower cylinder.

[0016] As a further solution of the present invention, the fixed telescopic rod includes a telescopic rod connected to the lower tube, the lower end of the telescopic rod is rotatably connected to a valve, and one end of the valve is fixedly connected to a knob set through the telescopic rod.

[0017] As a further solution of the present invention, a hoisting method for rudder blade assembly comprises the following steps:

[0018] Step 1: First, the staff places the imitation rudder blade assembly on the fixed assembly, then lifts the slider by the crane to make the hanging plate rise and rotate, adjusts the height of the load-bearing frame by the lifting device according to the position of the rudder arm, and adjusts the lateral position of the fixed assembly by controlling the motor, so that the imitation rudder blade assembly can be placed on the rudder arm;

[0019] Step 2: The staff starts the light generator and checks the roundness of the projected light through the light projected by the light generator. When the light is not blocked, the position of the imitation rudder blade assembly is the best position for the rudder blade installation. At this time, the staff rotates the knob;

[0020] Step 3: The staff uses a crane to lower the hanging plate, takes out the imitation rudder blade assembly, and then uses the crane to lift the rudder blade and place it in the fixed assembly. Then the crane unhooks from the fixed assembly, and lifts the slider upward again to bring the fixed assembly closer to the rudder arm. Due to the previous adjustment, the rudder blade will directly move closer to the previous best installation position on the rudder arm.

[0021] Step 4: After the rudder blade and the rudder arm are docked, the staff will fix and install the rudder blade and the rudder arm, then start the lifting equipment, lower the height of the load-bearing frame, and release the fixation of the fixing assembly and the rudder blade.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. When the present invention is used, the light-weight imitation rudder blade assembly can be used to temporarily replace the rudder blade and be placed in advance on the rudder arm through the cooperation of the load-bearing platform assembly and the imitation rudder blade assembly, so that it can be quickly adjusted according to the installation position of the rudder blade. When the rudder blade is installed for the second time, there is no need to make too many adjustments, thereby effectively reducing the probability of collision between the rudder blade and the rudder arm and avoiding safety problems.

[0024] 2. When the present invention is used, the setting of the fixing component can not only fix the imitation rudder blade component and the rudder blade at the same time, but also facilitate the easier placement of the rudder blade in the hoisting state, thereby reducing the labor of the staff and improving the installation efficiency.

[0025] 3. When the present invention is used, by setting the hydraulic assembly, the buffer assembly and the angle trigger assembly, the movement resistance of the load-bearing platform assembly can be increased when the rudder blade is approaching the installation position, thereby slowing down the movement speed of the rudder blade, so as to facilitate better installation by the staff, and at the same time reduce the contact force between the rudder blade and the rudder arm, further improving the service life of the rudder arm and the rudder blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a load-bearing platform component and a lifting component in a hoisting device for rudder blade assembly;

[0027] Figure 2 This is an appearance diagram of a fixed component in a lifting device for rudder blade assembly;

[0028] Figure 3 It is a structural schematic diagram of a fixing component in a hoisting device for rudder blade assembly;

[0029] Figure 4 It is a structural schematic diagram of a rudder blade imitation component in a hoisting device for rudder blade assembly;

[0030] Figure 5 It is a structural schematic diagram of a hydraulic component and an angle trigger component in a hoisting device for rudder blade assembly;

[0031] Figure 6 It is a structural schematic diagram of a buffer component in a hoisting device for rudder blade assembly;

[0032] Figure 7 It is a structural schematic diagram of a fixed telescopic rod in a hoisting device for rudder blade assembly;

[0033] Figure 8 The figure is a state diagram of a rudder blade being installed in a hoisting device used for rudder blade assembly;

[0034] Fig. 9 The present invention is a flow chart of a hoisting method for rudder blade assembly.

[0035] In the figure:

[0036] 1. Load-bearing platform assembly; 101. Load-bearing frame; 102. Lifting device; 103. Adjustment rail; 104. Moving block; 105. Insert column; 106. Threaded rod; 107. Motor;

[0037] 2. Lifting assembly; 201. Hanging plate; 202. Sliding block; 203. Connecting column; 204. Crossbar;

[0038] 3. Fixed assembly; 301. Support block; 302. Electromagnet; 303. Guide clamp; 304. Limit rod; 305. Press block; 306. Oil cylinder; 307. Moving plug; 308. Connecting rod; 309. Oil pipe; 310. Telescopic cylinder;

[0039] 4. imitation rudder blade assembly; 401. imitation rudder blade block; 402. light generator;

[0040] 5. Hydraulic assembly; 501. Rotating sleeve; 502. Transmission oil storage cylinder; 503. Lower cylinder; 504. Upper cylinder;

[0041] 6. Buffer assembly; 601. Hydraulic plug; 602. Oil hole; 603. Slide; 604. Blocking block; 605. Return spring;

[0042] 7. Angle trigger assembly; 701. Electric magnet ring block; 702. Push-pull rod; 703. Fixed telescopic rod; 7031. Telescopic rod; 7032. Valve; 7033. Knob. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] Example 1: Please refer to Figures 1 to 6 In an embodiment of the present invention, a hoisting device for assembling a rudder blade comprises a load-bearing platform assembly 1 and an imitation rudder blade assembly 4 temporarily replacing the rudder blade, the load-bearing platform assembly 1 comprises a load-bearing frame 101, a lifting device 102 for lifting the load-bearing frame 101 is installed at the lower end of the lifting device 102, an adjusting rail 103 is slidably connected inside the load-bearing platform assembly 1, a moving block 104 is slidably connected inside the adjusting rail 103, a plug-in column 105 is plugged into the moving block 104, a threaded rod 106 threadedly connected to the adjusting rail 103 is rotatably connected inside the load-bearing frame 101, a motor 107 is fixedly connected to the side wall of the load-bearing frame 101, and an output end of the motor 107 is fixedly connected to the threaded rod 106, through the rotation of the motor 107, the moving block 104 can be driven to move through the threaded rod 106, and the moving block 104 drives the fixed assembly 3 to move through the plug-in column 105, thereby achieving the purpose of adjusting the lateral position of the fixed assembly 3, and a lifting assembly 2 for lifting the fixed assembly 3 is installed on the load-bearing frame 101;

[0045] The lifting assembly 2 includes two hanging plates 201 hinged on the load-bearing frame 101, and the side walls of the two hanging plates 201 that are separated from each other are slidably connected with sliders 202, and the sliders 202 are fixedly connected with a hanging rod for connecting with the hanging rope in the crane, and the connecting columns 203 and the cross bars 204 are fixedly connected between the opposite side walls of the two hanging plates 201. The connecting columns 203 are equipped with fixing components 3 for fixing the rudder blades, and the cross bars 204 are equipped with hydraulic components 5 for helping the hanging plates 201 to slow down their rotation speed.

[0046] The fixing assembly 3 includes a support block 301 which is slidably connected to the connecting column 203, and the plug column 105 is fixedly connected to the lower side wall of the support block 301, and the upper side wall of the support block 301 is fixedly connected with an electromagnet 302 for adsorbing the rudder blade, and the upper side wall of the support block 301 is rotatably connected to two symmetrically arranged guide clamps 303, and a torsion state is installed between the guide clamps 303 and the support block 301. When the torsion spring is not under force, the two guide clamps 303 are in an expanded state, and the torsion spring is not shown in the figure, and the two guide clamps 303 are also in an inclined state in the horizontal plane. Since most rudder blades are flat structures, and in order to reduce water resistance, the shape is generally set to have a large end at one end and a small end at the other end, so the two inclined guide clamps 303 can play a positioning role for most rudder blades, and the two guide clamps The limiting rod 304 is fixedly connected to one side wall of the plate 303 opposite to the other side wall, and the limiting rod 304 can prevent the rudder blade from falling to a certain extent, thereby improving safety. The fixing component 3 also includes a pressure block 305 slidably connected to the inside of the support block 301, and an oil cylinder 306 is fixedly connected to the inside of the support block 301, and the inside of the oil cylinder 306 is filled with hydraulic oil. A movable plug 307 is slidably connected to the inside of the oil cylinder 306, and a connecting rod 308 is fixedly connected between the movable plug 307 and the pressure block 305. A telescopic cylinder 310 is hinged between the guide splint 303 between the support block 301, and an oil pipe 309 is connected between the telescopic cylinder 310 and the oil cylinder 306. The weight of the rudder blade can be used to make the oil pass through the oil pipe 309, and the guide splint 303 is pushed by the telescopic cylinder 310, so as to clamp the two side walls of the rudder blade and complete the fixation of the rudder blade.

[0047] The imitation rudder blade assembly 4 includes an imitation rudder blade block 401 , which has the same size and shape as the rudder blade to be installed. The imitation rudder blade block 401 can be made of a hollow iron material, and a light generator 402 is installed inside the installation hole of the imitation rudder blade block 401 .

[0048] Example 2: Please refer to Figures 7 to 9Based on Example 1, the hydraulic component 5 includes a rotating sleeve 501 rotatably connected to the cross bar 204, a transmission oil storage cylinder 502 is rotatably connected to the load-bearing frame 101, a lower cylinder 503 is fixedly connected to the transmission oil storage cylinder 502, an upper cylinder 504 fixedly connected to the rotating sleeve 501 is inserted into the lower cylinder 503, a buffer component 6 located inside the lower cylinder 503 is fixedly connected to the lower end of the upper cylinder 504, and an angle trigger component 7 is sleeved on the lower cylinder 503.

[0049] The buffer assembly 6 includes a hydraulic plug 601 fixedly connected to the upper cylinder 504, and eight oil holes 602 and seven slide grooves 603 are drilled on the hydraulic plug 601, and the slide grooves 603 are connected to the oil holes 602. One of the oil holes 602 does not have a slide groove 603 and a blocking block 604 installed inside, and is always in a flow state. The blocking block 604 is slidably connected inside the slide groove 603, and when the electric magnet ring block 701 is started, it can be attracted to the blocking block 604. A return spring 605 is fixedly connected between the blocking block 604 and the hydraulic plug 601.

[0050] The angle trigger assembly 7 includes an electric magnet ring block 701 sleeved on the lower cylinder 503, a plurality of push-pull rods 702 magnetically attracted to the electric magnet ring block 701 are fixedly connected to the upper cylinder 504, a fixed telescopic rod 703 connected to the lower cylinder 503 is fixedly connected between the electric magnet ring block 701 and the transmission oil storage cylinder 502, the fixed telescopic rod 703 includes a telescopic rod 7031 connected to the lower cylinder 503, the lower end of the telescopic rod 7031 is rotatably connected to a valve 7032, and one end of the valve 7032 is fixedly connected to a knob 7033 set through the telescopic rod 7031.

[0051] A hoisting method for rudder blade assembly comprises the following steps:

[0052] Step 1: First, the staff places the imitation rudder blade assembly 4 on the fixed assembly 3, then lifts the slider 202 through the crane to make the hanging plate 201 rise and rotate, and adjusts the height of the load-bearing frame 101 and the fixed assembly 3 through the lifting device 102 according to the position of the rudder arm, and adjusts the lateral position of the fixed assembly 3 by controlling the motor 107, so that the imitation rudder blade assembly 4 can be placed on the rudder arm;

[0053] Step 2: The staff starts the light generator 402 and checks the roundness of the projected light through the light projected by the light generator 402. When the light is not blocked, the position of the imitation rudder blade assembly 4 is the best position for the rudder blade to be installed. This is because the position of the imitation rudder blade block 401 is now located. When the light projected by the light generator 402 completely overlaps, it means that the rudder blade installation hole corresponds to the rudder arm installation hole. This state can be referred to Figure 4At this time, the staff rotates the knob 7033 to fix the electric magnet ring block 701. When the hanging plate 201 rotates the same angle next time, the electric magnet ring block 701 can be used to control the flow of the buffer assembly 6 to slow down the rotation speed of the hanging plate 201.

[0054] Step 3, the staff uses a crane to lower the hanging plate 201, takes out the imitation rudder blade assembly 4, and then uses the crane to lift the rudder blade and place it in the fixed assembly 3. Then the crane is unhooked from the fixed assembly 3, and the slider 202 is lifted upward again to bring the fixed assembly 3 closer to the rudder arm. Due to the previous adjustment, the rudder blade will directly move closer to the previous best installation position on the rudder arm.

[0055] Step 4: After the rudder blade and the rudder arm are docked, the staff will fix and install the rudder blade and the rudder arm, and then start the lifting device 102 to lower the height of the load-bearing frame 101 and release the fixation of the fixing component 3 and the rudder blade.

[0056] The working principle of the present invention is:

[0057] First, the staff places the imitation rudder blade block 401 between the two guide clamps 303 in the fixed assembly 3. The imitation rudder blade block 401 presses down the pressure block 305 by its own weight, so that the oil in the oil cylinder 306 is transferred to the telescopic cylinder 310 through the oil pipe 309. The telescopic cylinder 310 extends and pushes the guide clamp 303 to clamp the imitation rudder blade block 401. Then, it is connected to the slider 202 through the crane rope and lifted upward, so that the slider 202 moves upward to drive the hanging plate 201 to drive the fixed assembly 3 and the imitation rudder blade block 401 to rise and rotate. At this time, the staff adjusts the height of the load-bearing frame 101 and the fixed assembly 3 through the lifting device 102 according to the specific position of the rudder arm, and adjusts the lateral position of the fixed assembly 3 by controlling the motor 107, so that the imitation rudder blade block 401 can be placed on the rudder arm.

[0058] After the imitation rudder blade block 401 is placed on the rudder arm, the staff starts the light generator 402, and the light projected by the light generator 402 will pass through the rudder arm hole. The staff checks the roundness of the projected light. When the light is not blocked, it means that the current position will make the rudder blade mounting hole correspond to the mounting hole of the rudder arm;

[0059] When the hanging plate 201 rotates, the cross bar 204 pushes the upper cylinder 504, so that the upper cylinder 504 drives the hydraulic plug 601 to move downward inside the lower cylinder 503, and the oil inside the lower cylinder 503 passes through the multiple oil holes 602 in the hydraulic plug 601. When the imitation rudder blade assembly 4 is placed on the rudder arm, the angle between the hanging plate 201 and the load-bearing frame 101 is the best installation angle for the rudder blade. At this time, the staff rotates the knob 7033 so that the telescopic rod 7031 is no longer connected to the transmission oil storage cylinder 502, so that the telescopic rod 7031 can no longer be extended, thereby completing the fixation of the electric magnet ring block 701;

[0060] It is worth noting that the length of the push-pull rod 702 enables the electric magnet ring block 701 and the hydraulic plug 601 to be at the same height, so when the rotating sleeve 501 contracts, the hydraulic plug 601 and the electric magnet ring block 701 will move together.

[0061] The staff lowers the hanging plate 201 by means of a crane, unhooks the hanging rope from the slider 202, then takes out the imitation rudder blade assembly 4, and then lifts the rudder blade by means of the crane. When the rudder blade is about to contact the fixing assembly 3, the staff starts the electromagnet 302, and uses the magnetic force generated by the electromagnet 302 to attract the tip of the rudder blade close, and uses the inclination of the two guide clamps 303 to position the rudder blade. After the imitation rudder blade block 401 is taken out, the guide clamp 303 is unfolded again under the action of the torsion spring, and the unfolded guide clamp 303 is in the shape of a trumpet, which makes it easier for the rudder blade to be hoisted between the two guide clamps 303. Then the rudder blade will also press the pressing block 305 downward by its own weight, so that the oil in the oil cylinder 306 is transferred to the telescopic cylinder 310 through the oil pipe 309. The telescopic cylinder 310 extends and pushes the guide clamp 303 to clamp the rudder blade. Figure 8 As shown;

[0062] Then the staff lifts the slider 202 upward again. Since the lateral position and height of the fixing assembly 3 have been adjusted when the imitation rudder blade assembly 4 was placed, the rudder blade will directly approach the previous optimal installation position on the rudder arm. Figure 8 ;

[0063] When the rudder blade is about to approach the rudder arm, the staff starts the electric magnet ring block 701. Because the imitation rudder blade block 401 was installed to the best position before, the electric magnet ring block 701 was fixed at the current position of the hydraulic plug 601. When the rudder blade is about to contact the rudder arm this time, the angle between the load-bearing frame 101 and the hanging plate 201 is close to the previous angle. Therefore, the hydraulic plug 601 will be affected by the magnetic force of the electric magnet ring block 701. The electric magnet ring block 701 attracts multiple blocking blocks 604 to move through the magnetic force, and blocks the seven oil holes 602, leaving only one hydraulic plug 601 in a flow state. At this time, the rotation speed of the hanging plate 201 is slowed down to facilitate the staff to install better and reduce the contact force between the rudder blade and the rudder arm.

[0064] Finally, the staff fixedly installed the rudder blade and the rudder arm, and then lowered the height of the load-bearing frame 101 through the lifting equipment 102, so that the rudder blade and the pressure block 305 are not in contact, and the guide clamp 303 is unfolded under the action of the torsion spring, thereby releasing the fixation of the fixing component 3 and the rudder blade.

[0065] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hoisting device for rudder blade assembly, comprising a load-bearing platform assembly (1) and an imitation rudder blade assembly (4), characterized in that: The load-bearing platform component (1) comprises a load-bearing frame (101), a lifting device (102) is installed at the lower end of the load-bearing frame (101), an adjusting rail (103) is slidably connected inside the load-bearing platform component (1), a moving block (104) is slidably connected inside the adjusting rail (103), a plug-in column (105) is inserted on the moving block (104), a threaded rod (106) threadedly connected to the adjusting rail (103) is rotatably connected inside the load-bearing frame (101), a motor (107) is fixedly connected to the side wall of the load-bearing frame (101), and the output end of the motor (107) is fixedly connected to the threaded rod (106), and a lifting component (2) is installed on the load-bearing frame (101); The lifting assembly (2) comprises two hanging plates (201) hinged on the load-bearing frame (101), the side walls of the two hanging plates (201) facing each other are slidably connected with a slider (202), a connecting column (203) and a cross bar (204) are fixedly connected between the two hanging plates (201), a fixing assembly (3) is installed on the connecting column (203), and a hydraulic assembly (5) is installed on the cross bar (204); The fixing assembly (3) comprises a support block (301) slidably connected to the connecting column (203), and the plug column (105) is fixedly connected to the lower side wall of the support block (301), the upper side wall of the support block (301) is fixedly connected to an electromagnet (302), the upper side wall of the support block (301) is rotatably connected to two symmetrically arranged guide clamps (303), and the two guide clamps (303) are fixedly connected to the opposite side walls with a limiting rod (304); The fixing assembly (3) further comprises a pressing block (305) slidably connected to the interior of the supporting block (301); an oil cylinder (306) is fixedly connected to the interior of the supporting block (301); a movable plug (307) is slidably connected to the interior of the oil cylinder (306); a connecting rod (308) is fixedly connected between the movable plug (307) and the pressing block (305); a telescopic cylinder (310) is hingedly connected between the guide clamping plates (303) between the supporting blocks (301); and an oil pipe (309) is connected between the telescopic cylinder (310) and the oil cylinder (306); The hydraulic assembly (5) comprises a rotating sleeve (501) rotatably connected to the crossbar (204); a transmission oil storage cylinder (502) is rotatably connected to the load-bearing frame (101); a lower cylinder (503) is fixedly connected to the transmission oil storage cylinder (502); an upper cylinder (504) fixedly connected to the rotating sleeve (501) is inserted into the lower cylinder (503); a buffer assembly (6) located inside the lower cylinder (503) is fixedly connected to the lower end of the upper cylinder (504); and an angle trigger assembly (7) is sleeved on the lower cylinder (503); The angle trigger assembly (7) comprises an electric magnet ring block (701) sleeved on a lower cylinder (503); a plurality of push-pull rods (702) in contact with the electric magnet ring block (701) are fixedly connected to the upper cylinder (504); a fixed telescopic rod (703) is fixedly connected between the electric magnet ring block (701) and the transmission oil storage cylinder (502); and the fixed telescopic rod (703) is communicated with the lower cylinder (503).

2. A hoisting device for rudder blade assembly according to claim 1, characterized in that: The imitation rudder blade assembly (4) comprises an imitation rudder blade block (401), and a light generator (402) is installed inside a mounting hole of the imitation rudder blade block (401).

3. A hoisting device for rudder blade assembly according to claim 1, characterized in that: The buffer assembly (6) comprises a hydraulic plug (601) fixedly connected to the upper cylinder (504), and a plurality of oil holes (602) and slide grooves (603) are formed on the hydraulic plug (601), and the slide grooves (603) are connected to the oil holes (602).

4. A hoisting device for rudder blade assembly according to claim 3, characterized in that: A blocking block (604) is slidably connected inside the sliding groove (603), and a return spring (605) is fixedly connected between the blocking block (604) and the hydraulic plug (601).

5. The hoisting device for rudder blade assembly according to claim 1, characterized in that: The fixed telescopic rod (703) comprises a telescopic rod (7031) connected to the lower cylinder (503); the lower end of the telescopic rod (7031) is rotatably connected to a valve (7032); one end of the valve (7032) is fixedly connected to a knob (7033) provided through the telescopic rod (7031).

6. A method for hoisting a hoisting device for rudder blade assembly according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: First, a worker places the imitation rudder blade assembly (4) on the fixed assembly (3), then lifts the slider (202) by a crane to make the hanging plate (201) rise and rotate, and adjusts the height of the load-bearing frame (101) by a lifting device (102) according to the position of the rudder arm, and adjusts the lateral position of the fixed assembly (3) by controlling the motor (107) so that the imitation rudder blade assembly (4) can be placed on the rudder arm; Step 2, the staff starts the light generator (402), and checks the roundness of the projected light through the light projected by the light generator (402). When the light is not blocked, the position of the imitation rudder blade assembly (4) is the best position for the rudder blade to be installed. At this time, the staff rotates the knob (7033); Step 3, the staff uses a crane to lower the hanging plate (201), takes out the imitation rudder blade assembly (4), and then uses the crane to lift the rudder blade and place it in the fixed assembly (3). Then, the crane is unhooked from the fixed assembly (3), and the slider (202) is lifted upward again, so that the fixed assembly (3) and the rudder arm are close to each other. Due to the previous adjustment, the rudder blade will directly move closer to the previous optimal installation position on the rudder arm. Step 4: After the rudder blade and the rudder arm are docked, the staff will fix and install the rudder blade and the rudder arm, and then start the lifting device (102) to lower the height of the load-bearing frame (101) and release the fixation of the fixing component (3) and the rudder blade.

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