Horizontal rapid installation method for lifting unit of wind power installation platform

Abstract

The invention relates to a method for horizontally and quickly mounting a lifting unit of a wind power mounting platform. The method comprises the following steps of: 1, measuring the sizes of a cylinder sleeve and a bearing seat; step 2, hoisting by a lifting mechanism; according to the installation method, in the early stage of installation, the hoist is used for pulling the auxiliary rod to move forwards, when the head of the auxiliary rod extends out of the tail end of the installation position, the lifting belt is used for holding the auxiliary rod, in the later stage of installation, when the auxiliary lifting rope of the lifting mechanism is lifted to affect installation and disassembly of the auxiliary lifting rope, the two sides of the lifting mechanism are lifted by the main lifting rope and the lifting belt correspondingly, stress is uniform, and installation is convenient. The lifting mechanism is pushed to the final installation position through cooperation of a hollow hydraulic jack and a full-thread lead screw in the later installation period, in the pushing process of the jack, horizontal thrust is applied to the lifting mechanism all the time, the lifting mechanism is pushed to rapidly and horizontally move, and therefore the lifting mechanism is prevented from being collided. The stress stability of the lifting mechanism and the stability of the square can be guaranteed, rapid installation is achieved, and manual labor is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of the manufacture of wind power installation platforms, and particularly to a method for quickly and horizontally installing a lifting unit of a wind power installation platform. Background Art

[0002] A wind power installation platform is a special wind power construction equipment for developing offshore wind power resources. The wind power installation platform includes a main hull, multiple groups of pile legs, and multiple lifting units. The multiple groups of pile legs are respectively arranged on the main hull in a penetrating manner. A pile shoe is provided at the bottom of each group of pile legs. Each group of pile legs corresponds to a lifting unit for driving the corresponding pile leg to lift. The lifting unit is installed on the main hull through a pile fixing frame. The lifting unit includes a number of pairs of lifting mechanisms. Every two pairs of lifting mechanisms form a layer. A number of lifting mechanisms form N layers of lifting mechanisms, which are successively the first-layer lifting mechanism, the second-layer lifting mechanism from bottom to top, and so on. The topmost layer is the Nth-layer lifting mechanism. Each lifting mechanism includes a lifting mechanism body, a driving motor, a planetary reduction gearbox, a parallel-axis reduction gearbox, a brake, and a climbing gear. The driving motor is arranged on one side of the lifting mechanism body. The planetary reduction gearbox is located at the lower part of the lifting mechanism body. The parallel-axis reduction gearbox is arranged between the driving motor and the planetary reduction gearbox. The brake is separately arranged from the driving motor and connected to the driving motor. The climbing gear meshes with the pile leg rack. The driving motor drives the climbing gear to rotate through the parallel-axis reduction gearbox and the planetary reduction gearbox in sequence, so as to drive the pile leg to lift.

[0003] When installing each lifting mechanism of the lifting unit, usually, a lifting device and multiple lifting ropes are first used to horizontally lift the lifting mechanism to the installation position, and then the lifting mechanism is manually pushed into the lifting frame. During this process, the auxiliary lifting ropes at the front side will form an obstruction, and it is necessary to disconnect the connection of the auxiliary lifting ropes. However, after the auxiliary lifting ropes are unhooked, since there is no traction at the front end of the lifting mechanism, the force is unbalanced, resulting in inclination. The lifting mechanism is extremely prone to bumping, thus affecting the installation accuracy of the mechanism and even causing damage to the mechanism.

[0004] Therefore, the present invention proposes a method for quickly and horizontally installing a lifting unit of a wind power installation platform to solve the above problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a method for quickly and horizontally installing a lifting unit of a wind power installation platform, and solve the problems that the lifting unit is prone to bumping and affects the installation accuracy during installation.

[0006] To solve the above technical problem, the technical solution of the present invention is: a method for quickly and horizontally installing a lifting unit of a wind power installation platform, and its innovation lies in: including the following steps: Step 1. Measurement of the dimensions of the cylinder liner and bearing seat: Precisely control and measure the inner diameter dimensions of the cylinder liner and bearing seat at all installation positions on the fixed pile frame, compare the measured data with the corresponding position dimensions of the lifting unit reduction gearbox, and number them. Step 2. Hoisting of the lifting mechanism: Horizontally hoist the lifting mechanism to one side of the installation position, push the lifting mechanism forward, so that the head of the auxiliary rod of the lifting mechanism enters the front end of the installation position, use a hoist to pull the auxiliary rod forward to continue to penetrate into the installation position. When the head of the auxiliary rod extends out of the end of the installation position, use a sling to hold the auxiliary rod. After the sling is tightened, use a hoist to continue pulling the auxiliary rod, and the lifting mechanism continues to move forward. When the auxiliary lifting rope for hoisting the lifting mechanism affects the installation, remove the auxiliary lifting rope, and use a hollow hydraulic jack and a fully threaded lead screw to cooperate to continue pushing the lifting mechanism into the installation position until the lifting mechanism reaches the final installation position.

[0007] Further, the lifting mechanism needs to be installed after the lifting frame structure of the platform and the cofferdam are carried, and after the lower section of the pile leg is hoisted in place and welded to the pile shoe.

[0008] Further, for each cofferdam, first install the first layer of the lifting mechanism uniformly, and then install the second layer of the lifting mechanism upwards, and install up to the topmost layer of the lifting mechanism in sequence. When installing each layer of the lifting mechanism, the two lifting mechanisms are installed symmetrically left and right.

[0009] Further, before installing the lifting mechanism, clean the mating surfaces of the lifting unit and the fixed pile frame, remove paint, burrs and rust, ensure that the installation surface is smooth, apply lubricating grease in the O-ring groove and the mating surface, and install the O-ring.

[0010] Further, the brake of the lifting mechanism is provided with a manual release device. Before installing the lifting mechanism, manually screw in the brake release bolt to change the state of the brake pads, release the brake, then measure the tooth profile phase of the rack at the corresponding installation position, use a socket wrench to turn the shaft to the same phase as the rack, and the turning direction is the same as the rotation direction of the climbing gear. After the lifting mechanism is installed in place, check the installation position of the lifting mechanism and the meshing condition of the climbing gear and the rack.

[0011] Further, when the lifting mechanism is horizontally hoisted to one side of the installation position, the lifting mechanism needs to be adjusted to a horizontal state in both the left-right direction and the front-back direction.

[0012] Further, when installing the lifting mechanism, a gasket is provided between the anti-rotation position at the lower part of the lifting mechanism and the fixed pile frame stop block. After measuring the gap between the anti-rotation position at the upper part of the lifting mechanism and the fixed pile frame stop block, process the adjusting gasket to the required size, grind it on site and knock it into the gap between the anti-rotation position at the upper part of the lifting mechanism and the fixed pile frame stop block to ensure that the gasket fits tightly. After the gasket installation is completed, tighten the positioning bolts of the reduction gearbox.

[0013] Further, when installing the gasket, soft materials are used for auxiliary installation. If it is found that the adjusting gasket is too large to be knocked in, after measuring the installation position size of the adjusting gasket, the adjusting gasket is machined.

[0014] Further, after the gasket is installed, if there is a gap, a steel gasket is machined on site to ensure that the gasket fits tightly against the anti-torsion block of the reduction gearbox without any gap.

[0015] Further, the central axis of the all-threaded lead screw is horizontally arranged. One end of the all-threaded lead screw is connected to the side wall of the fixed pile frame, and the other end sequentially passes through the flange hole of the lifting mechanism and the central through hole in the middle of the hollow hydraulic jack and is threadedly connected to the positioning nut. One end of the hollow hydraulic jack abuts against the flange end face of the lifting mechanism, and the other end abuts against the positioning nut.

[0016] The advantages of the present invention are as follows: In the early stage of installation of the lifting unit of the wind power installation platform of the present invention, a hoist is used to pull the auxiliary rod forward. When the head of the auxiliary rod extends beyond the end of the installation position, the auxiliary rod is lifted by a sling. In the later stage of installation, when the auxiliary lifting rope for hoisting the lifting mechanism affects the installation and removal of the auxiliary lifting rope, the two sides of the lifting mechanism are respectively suspended by the main lifting rope and the sling, and the force is evenly distributed, thus effectively avoiding the situation of the lifting mechanism being knocked or bumped. In the later stage of installation, the hollow hydraulic jack and the all-threaded lead screw are used in cooperation to push the lifting mechanism to the final installation position. During the pushing process of the jack, a horizontal thrust is always applied to the lifting mechanism to push the lifting mechanism to move horizontally quickly, which can not only ensure the smoothness of the force on the lifting mechanism and the stability of the square shape to achieve rapid installation, but also save labor. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 1 It is a schematic diagram of the horizontal rapid installation method of the lifting unit of the wind power installation platform of the present invention.

[0019] Figure 2 It is a schematic diagram of the connection between the hoist and the lifting mechanism of the present invention.

[0020] Figure 3 It is a schematic diagram of the connection between the hollow hydraulic jack and the all-threaded lead screw and the lifting mechanism of the present invention.

[0021] Figure 4 It is a schematic diagram of the lifting mechanism installed in the fixed pile frame of the present invention.

[0022] Figure 5 It is an enlarged view of part A of the present invention.

[0023] Figure 6 It is a schematic diagram of the installation sequence of each layer of the lifting mechanism of the lifting unit of the present invention. Detailed Implementation Manner

[0024] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, detail the specific implementation manner, structure, features, and their effects of the present invention as follows.

[0025] Embodiment This embodiment provides a method for quickly installing the lifting unit of a wind power installation platform horizontally, as Figure 1 shown, including the following steps: Step 1. Measurement of the dimensions of the cylinder liner and bearing seat: Precisely control and measure the inner diameter dimensions of the cylinder liner and bearing seat at all installation positions on the pile fixing frame 7, compare the measurement data with the corresponding position dimensions of the reduction gearbox of the lifting unit, and number them to facilitate having a suitable gap during installation and convenient on-site construction; Before hoisting the lifting mechanism 1, the following operations need to be completed in advance: The lifting frame structure of the platform and the surrounding well are carried, and the lower section of the pile leg is hoisted in place and welded to the pile shoe; Clean the mating surfaces of the lifting unit and the pile fixing frame 7, remove paint, burrs, and rust, ensure that the installation surface is smooth, apply lithium-based grease in the O-ring groove and mating surface, and install the O-ring; The brake of the lifting mechanism 1 is provided with a manual release device. By manually screwing in the brake release bolt, the state of the brake pads is changed to release the brake, and then the tooth profile phase of the rack at the corresponding installation position is measured, and the vehicle is turned to the same phase as the rack using a socket wrench. The vehicle turning direction is the same as the rotation direction of the climbing gear; The auxiliary rod is detachably installed at the rotating end of the lifting mechanism 1 using the first bolt. As Figure 2 shown, the rotating end face of the lifting mechanism 1 has first threaded holes for connecting the end cover. A connecting plate 13 is welded to the tail of the auxiliary rod 11. The connecting plate 13 is perpendicular to the central axis of the auxiliary rod 11. First through holes corresponding to each first threaded hole are opened on the connecting plate 13. The first bolt passes through the first through hole and is threadedly connected to the corresponding first threaded hole to complete the installation of the auxiliary rod 11. Four rib plates 12 are provided around the auxiliary rod 11. The rib plates 12 are located in the radial direction of the auxiliary rod 11. One side of the rib plate 12 is welded to the auxiliary rod 11, and the other side is welded to the connecting plate 13. Holes for connecting the hoist 2 are opened on the side of each rib plate 12 away from the connecting plate 13. The chain of the hoist 2 is connected to the hole of the rib plate 12.

[0026] Step 2. Hoisting of the lifting mechanism 1: Using a hoisting device, horizontally hoist the lifting mechanism 1 with the main hoisting rope 51 and the auxiliary hoisting rope 52. Both the main hoisting rope 51 and the auxiliary hoisting rope 52 are connected to the positioning bolt holes at the top of the lifting mechanism 1. The main hoisting rope 51 is connected to the tail of the lifting mechanism 1, that is, the side of the lifting mechanism 1 away from the auxiliary rod 11, and the auxiliary hoisting rope 52 is connected to the middle of the lifting mechanism 1. Protective measures are taken on the contact surfaces of each hoisting rope and the lifting mechanism 1 to prevent scratching the surface of the lifting mechanism 1. Hoist the lifting mechanism 1 to one side of the installation position, and adjust the left-right direction and the front-back direction of the lifting mechanism 1 to the horizontal state; Manually push the lifting mechanism 1 forward so that the head of the auxiliary rod 11 of the lifting mechanism 1 enters the front end of the installation position of the pile fixing frame 7. Use the hoist 2 to pull the auxiliary rod 11 forward to continue to penetrate into the installation position. When the head of the auxiliary rod 11 extends out of the end of the installation position, use the sling 3 to hold the auxiliary rod 11. After tightening the sling 3 with the hoisting device, use the hoist 2 to continue pulling the auxiliary rod 11, and the auxiliary rod drives the lifting mechanism 1 to continue moving forward; When the auxiliary hoisting rope 52 for hoisting the lifting mechanism 1 affects the installation, remove the auxiliary hoisting rope 52 and install the hollow hydraulic jack 4 and the fully threaded lead screw 41. As Figure 3 shown, the central axis of the fully threaded lead screw 41 is horizontally arranged. Using the second threaded hole on the side wall of the pile fixing frame 7 for installing the reduction gearbox flange, one end of the fully threaded lead screw 41 is threadedly connected to the second threaded hole, and the other end sequentially passes through the flange hole of the reduction gearbox of the lifting mechanism 1 and the central through hole in the middle of the hollow hydraulic jack 4, and is threadedly connected to the positioning nut 42. One end of the hollow hydraulic jack 4 abuts against the flange end face of the lifting mechanism 1, and the other end abuts against the positioning nut 42. Use the cooperation of the hollow hydraulic jack 4 and the fully threaded lead screw 41 to continue pushing the lifting mechanism 1 into the installation position until the lifting mechanism 1 reaches the final installation position. As Figure 4 shown, after the lifting mechanism 1 is installed in place, check the installation position of the lifting mechanism 1 and the meshing condition of the climbing gear and the rack; When installing the lifting mechanism, as Figure 5 shown, a gasket 61 is arranged between the anti-rotation position at the lower part of the lifting mechanism 1 and the pile fixing frame stop block 62. The stop block 62 is installed on the outer side wall of the fixing frame through the fixing bolt 63. The gasket 61 is inserted into the gap between the lifting mechanism 1 and the pile fixing frame 7, and the end of the gasket 61 is closely attached to the side wall of the stop block 62; after measuring the gap between the anti-rotation position at the upper part of the lifting mechanism 1 and the pile fixing frame 7 stop block, process the adjusting gasket to the required size, and after on-site grinding, knock it into the gap between the anti-rotation position at the upper part of the lifting mechanism 1 and the pile fixing frame 7 stop block to ensure that the gasket is closely attached; when installing the gasket, use a soft material (such as wood) to assist in the installation. If it is found that the adjusting gasket is too large to be knocked in, after measuring the installation position size of the adjusting gasket, machine-process the adjusting gasket; after the gasket is installed, if there is a gap, fit a steel gasket on-site to ensure that the gasket is closely attached to the anti-torsion block of the reduction gearbox without a gap.

[0027] After the gasket installation is completed, remove the hollow hydraulic jack 4 and the fully threaded lead screw 41, tighten the positioning bolts of the reduction gearbox, remove the auxiliary rod 11, and install an end cover, a load sensor, and a protective cover at the rotating end of the lifting mechanism 1.

[0028] When installing the lifting unit, as Figure 6 shown, first uniformly install the first-layer lifting mechanism for each cofferdam, and then install the second-layer lifting mechanism upward, and sequentially install the lifting mechanisms up to the topmost layer. The lifting unit is symmetrically installed in two forms: the left machine and the right machine, which can be read from the nameplate diagram on the side of the parallel-axis reduction gearbox of the lifting mechanism. The number L is for the left machine, and the number R is for the right machine. When installing each layer of the lifting mechanism, the left machine and the right machine are symmetrically installed left and right.

[0029] In the early stage of installing the lifting unit of the wind power installation platform, use a hoist to pull the auxiliary rod forward. When the head of the auxiliary rod extends beyond the end of the installation position, use a sling to hold the auxiliary rod. In the later stage of installation, when the auxiliary lifting ropes for hoisting the lifting mechanism affect the installation and removal of the auxiliary lifting ropes, both sides of the lifting mechanism are suspended by the main lifting ropes and slings respectively, with uniform force, thus effectively avoiding the situation of the lifting mechanism being knocked. In the later stage of installation, use the hollow hydraulic jack and the fully threaded lead screw in cooperation to push the lifting mechanism to the final installation position. During the pushing process of the jack, a horizontal thrust is always applied to the lifting mechanism to push the lifting mechanism to move horizontally quickly, which can not only ensure the smoothness of the force on the lifting mechanism and the stability of the square to achieve rapid installation, but also save labor.

[0030] The above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed as above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A method for quickly installing a lifting unit of a wind power installation platform horizontally, characterized in that: It includes the following steps: Step 1. Measuring the dimensions of the cylinder liner and bearing seat: Precisely measure the inner diameter dimensions of the cylinder liner and bearing seat at all installation positions on the precision control and fixing frame, compare the measured data with the corresponding position dimensions of the lifting unit reduction gearbox, and number them; Step 2. Hoisting the lifting mechanism: Horizontally hoist the lifting mechanism to one side of the installation position, push the lifting mechanism forward, so that the head of the auxiliary rod of the lifting mechanism enters the front end of the installation position, use a hoist to pull the auxiliary rod forward to continue to penetrate into the installation position. When the head of the auxiliary rod extends out of the end of the installation position, sling the auxiliary rod with a sling. After the sling is tightened, use a hoist to continue pulling the auxiliary rod, and the lifting mechanism continues to move forward. When the auxiliary lifting rope for hoisting the lifting mechanism affects the installation, remove the auxiliary lifting rope, and use a hollow hydraulic jack and a full-threaded lead screw to cooperate to continue pushing the lifting mechanism into the installation position until the lifting mechanism reaches the final installation position.

2. The horizontal rapid installation method of the lifting unit of the wind power installation platform according to claim 1, characterized in that: The lifting mechanism needs to be installed after the lifting frame structure of the platform and the caisson are carried, and after the lower section of the pile leg is hoisted in place and welded to the pile shoe.

3. The horizontal rapid installation method of the lifting unit of the wind power installation platform according to claim 2, characterized in that: For each caisson, first install the first layer of the lifting mechanism uniformly, and then install the second layer of the lifting mechanism upward, and install up to the top layer of the lifting mechanism in turn. When installing each layer of the lifting mechanism, the two lifting mechanisms are installed symmetrically left and right.

4. The horizontal rapid installation method of the lifting unit of the wind power installation platform according to claim 1, characterized in that: Before installing the lifting mechanism, clean the mating surfaces of the lifting unit and the fixing frame, remove paint, burrs and rust, ensure that the installation surface is smooth, apply grease in the O-ring groove and the mating surface, and install the O-ring.

5. The horizontal rapid installation method of the lifting unit of the wind power installation platform according to claim 1, characterized in that: The brake of the lifting mechanism is provided with a manual release device. Before installing the lifting mechanism, manually screw in the brake release bolt to change the state of the brake pads, release the brake, then measure the tooth profile phase of the rack at the corresponding installation position, use a socket wrench to turn the shaft to the same phase as the rack, and the turning direction of the shaft is the same as the rotation direction of the climbing gear. After the lifting mechanism is installed in place, check the installation position of the lifting mechanism and the meshing condition of the climbing gear and the rack.

6. The horizontal rapid installation method of the lifting unit of the wind power installation platform according to claim 1, characterized in that: When the lifting mechanism is horizontally hoisted to one side of the installation position, the lifting mechanism needs to be adjusted to a horizontal state in both the left-right direction and the front-back direction.

7. The horizontal rapid installation method of the lifting unit of the wind power installation platform according to claim 1, characterized in that: When installing the lifting mechanism, a gasket is arranged between the anti-rotation position at the lower part of the lifting mechanism and the fixing frame block. After measuring the gap between the anti-rotation position at the upper part of the lifting mechanism and the fixing frame block, process the adjusting gasket to the required size, grind it on site and knock it into the gap between the anti-rotation position at the upper part of the lifting mechanism and the fixing frame block to ensure that the gasket is tightly attached. After the gasket installation is completed, tighten the positioning bolts of the reduction gearbox.

8. The horizontal rapid installation method of the lifting unit of the wind power installation platform according to claim 7, characterized in that: When installing the gasket, use a soft material to assist in the installation. If it is found that the adjusting gasket is too large to be knocked in, measure the installation position size of the adjusting gasket, and then machine-process the adjusting gasket.

9. The horizontal rapid installation method of the lifting unit of the wind power installation platform according to claim 7, characterized in that: After the gasket is installed, if there is a gap, a steel gasket is made on site to ensure that the gasket is tightly fitted with the anti-torsion block of the reduction gearbox without any gap.

10. The horizontal rapid installation method of the lifting unit of the wind power installation platform according to claim 1, characterized in that: The central axis of the full-threaded lead screw is horizontally arranged. One end of the full-threaded lead screw is connected to the side wall of the fixing frame, and the other end passes through the flange hole of the lifting mechanism and the central through hole of the hollow hydraulic jack in turn and is threadedly connected to the positioning nut. One end of the hollow hydraulic jack abuts against the flange end face of the lifting mechanism, and the other end abuts against the positioning nut.

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