A mounting frame for offshore wind power installation platform and its precision control process

Abstract

The present application relates to the technical field of manufacturing of ocean engineering equipment, and more particularly to a mounting rack for offshore wind power installation platform and a precision control process thereof, wherein the mounting rack is welded from an upper guiding slide base, a gear box base and a lower guiding slide base from top to bottom, and the precision control process of the mounting rack is strictly controlled in the form of data during the construction of the mounting rack, and the process steps thereof are set with reasonable process parameters, and the actual production verification can effectively improve the production efficiency and save the enterprise cost.

Description

Technical Field

[0001] This invention relates to the field of marine engineering equipment manufacturing technology, and in particular to an installation frame for an offshore wind power installation platform and its precision control process. Background Technology

[0002] Marine engineering specifically includes: land reclamation and seawall engineering; artificial islands, offshore and seabed material storage facilities, cross-sea bridges, and submarine tunnels; submarine pipelines and submarine electrical (optical) cable projects; marine mineral resource exploration and development and its ancillary projects; marine energy development and utilization projects such as offshore tidal power stations, wave power stations, and thermoelectric power stations; large-scale mariculture farms and artificial reef projects; comprehensive seawater utilization projects such as salt fields and seawater desalination; marine entertainment and sports, landscape development projects, and other marine engineering projects.

[0003] Self-elevating wind turbine installation platforms are mainly used for offshore wind power generation, allowing them to be moved from one power generation site to another. A self-elevating wind turbine installation platform mainly consists of a main deck, superstructure, legs, and installation frame. The installation frame is activated to drive the legs deeper into the fixed pile frame until the top touches the seabed, thus allowing the barge to be fully or partially exposed above the water, ensuring the main deck, serving as the work site, is protected from wave damage. Existing installation frames are relatively large and are generally constructed in sections, then welded together. The precision of the welding process determines the service life and accuracy of the installation frame. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an installation frame for offshore wind power installation platforms and its precision control process. This addresses the problem that existing installation frames are generally large, requiring segmented construction and welding connections, where the precision of the welding process determines the service life and accuracy of the installation frame.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The present invention provides an installation frame for an offshore wind power installation platform, the installation frame being welded together from top to bottom as an upper guide slide base, a gearbox base, and a lower guide slide base;

[0007] The upper guide slide base includes a middle partition plate, side plates are symmetrically arranged on the left and right sides of the middle partition plate, and a top platform and a bottom platform are respectively arranged on the upper and lower sides of the middle partition plate. A plurality of first upright plates are fixedly connected to the middle partition plate and are distributed at equal intervals. The first upright plates extend along the length direction of the middle partition plate.

[0008] The gearbox base includes an intermediate component plate and an outer platform assembly plate and an inner platform positioning plate respectively disposed on both sides of the intermediate component plate. Multiple second vertical plates are fixedly connected to the intermediate component plate, which are distributed at equal intervals and extend along the length direction of the intermediate component plate.

[0009] The lower guide groove base includes a guide plate and several gearboxes symmetrically installed on both sides of the guide plate at equal distances.

[0010] As a preferred embodiment of the present invention, the intermediate component plate, the outer platform assembly plate and the inner platform positioning plate are each provided with twelve evenly distributed mounting holes.

[0011] This invention also provides a precision control process for a mounting frame used in an offshore wind power installation platform, comprising the following steps:

[0012] Step A: The precision control of the upper guide slide base part lies in the control of the distance between the guide plate and the meshing center line of the gearbox. Before manufacturing, the center line of the upper guide slide base part is positioned by hammering with a punch. First, the top platform is welded together. Using the middle partition as a base, the first vertical plate is welded in sequence. After the welding is completed, the side plates and the bottom platform are installed. The middle partition with the first vertical plate, side plates and bottom platform installed is inverted on the top platform to complete the welding work of the upper guide slide base part.

[0013] Step B, the precision control of the gearbox base part is to strictly follow the welding sequence during the welding process to control the center distance and spacing of the twelve mounting holes, put the intermediate component plate on the mold, and pay attention to adding anti-deformation. After the marking is completed, report and seal the mold, and weld multiple second upright plates to the intermediate component plate. At the same time, during the welding, control the spacing of multiple mounting holes, center distance, and platform flatness measurement.

[0014] Step C: After the intermediate component plate is assembled and welded, the inner platform positioning plate is marked and attached to the intermediate component plate. After the positioning welding is completed, the plate is flipped over and the welding work between the intermediate component plate and the inner platform positioning plate is carried out using the inner platform positioning plate as a jig. During the welding process, the dimensions of the center line, straightness and flatness of the mounting holes of the intermediate component plate and the inner platform positioning plate are controlled. At the same time, the center line and straightness of the mounting holes need to be monitored in real time during the welding process.

[0015] Step D: After the intermediate component plate and the inner platform positioning plate are welded together, the outer platform assembly plate is flipped onto the intermediate component plate to complete the positioning. At the same time, the center line and straightness of the mounting holes opened on the intermediate component plate, the inner platform positioning plate and the outer platform assembly plate are controlled.

[0016] Step E, the key to precision control of the lower guide slide base is the control of the distance between the guide plate and the meshing center line of the gearbox. Before manufacturing, the center line of the lower guide slide base is hammered and positioned by using a punch.

[0017] Step F involves assembling and welding the upper guide slide base, gearbox base, and lower guide slide base. During welding, the guide center lines of the upper guide slide base, gearbox base, and lower guide slide base, as well as the center lines of the intermediate components, must coincide.

[0018] As a preferred technical solution of the present invention, after the inner platform positioning plate, the intermediate component plate and the outer platform assembly plate are assembled, steel wire angle steel with sufficient rigidity needs to be welded to the upper and lower ends of the inner platform positioning plate, the intermediate component plate and the outer platform assembly plate to measure and control concentricity and straightness.

[0019] As a preferred technical solution of the present invention, after the guide slide base, gearbox base and lower guide slide base are mounted, the weld seam is fixed at the closing joint position using a long row of not less than 1M, thereby avoiding upward warping and deformation of the weld at the closing position.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] Through the precision control process of the mounting bracket of this invention, the construction process of the mounting bracket is strictly controlled in the form of data, and its process steps are set with reasonable process parameters. Verification through actual production has shown that it can effectively improve production efficiency and save enterprise costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the mounting bracket of the present invention;

[0023] In the diagram: 1. Upper guide slide base; 2. Gearbox base; 3. Lower guide slide base. Detailed Implementation

[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0025] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] Example

[0027] An installation frame for an offshore wind power installation platform is provided. The installation frame is composed of an upper guide slide base, a gearbox base, and a lower guide slide base welded together from top to bottom. The upper guide slide base, the gearbox base, and the lower guide slide base are all provided with receiving grooves on their inner sides for placing pile legs, and are located on the same end face.

[0028] The upper guide slide base includes a middle partition plate, side plates are symmetrically arranged on the left and right sides of the middle partition plate, and a top platform and a bottom platform are respectively arranged on the upper and lower sides of the middle partition plate. A plurality of first upright plates are fixedly connected to the middle partition plate and are distributed at equal intervals. The first upright plates extend along the length direction of the middle partition plate.

[0029] The gearbox base includes an intermediate component plate and an outer platform assembly plate and an inner platform positioning plate respectively disposed on both sides of the intermediate component plate. The intermediate component plate, the outer platform assembly plate and the inner platform positioning plate are all provided with twelve evenly distributed mounting holes. Multiple second vertical plates that are evenly distributed and extend along the length of the intermediate component plate are fixedly connected to the intermediate component plate.

[0030] The lower guide groove base includes a guide plate and several gearboxes symmetrically installed on both sides of the guide plate at equal distances.

[0031] A precision control process for a mounting frame used in an offshore wind power installation platform includes the following steps:

[0032] Step A: The precision control of the upper guide slide base part lies in the control of the distance between the guide plate and the meshing center line of the gearbox. Before manufacturing, the center line of the upper guide slide base part is positioned by hammering with a punch. First, the top platform is welded together. Using the middle partition as a base, the first vertical plate is welded in sequence. After the welding is completed, the side plates and the bottom platform are installed. The middle partition with the first vertical plate, side plates and bottom platform installed is inverted on the top platform to complete the welding work of the upper guide slide base part.

[0033] Step B involves strictly following the welding sequence during the welding process to control the center distance and spacing of the twelve mounting holes. The intermediate component plate is then mounted on a mold, with attention paid to preventing deformation. After marking, the mold is inspected and sealed. Multiple second upright plates are then welded to the intermediate component plate. During welding, the spacing, center distance, and flatness of the platform are measured. After the inner platform positioning plate, intermediate component plate, and outer platform assembly plate are assembled, steel wire angles with sufficient rigidity are welded to the upper and lower ends of the inner platform positioning plate, intermediate component plate, and outer platform assembly plate to measure and control concentricity and straightness.

[0034] Step C: After the intermediate component plate is assembled and welded, the inner platform positioning plate is marked and attached to the intermediate component plate. After the positioning welding is completed, the plate is flipped over and the welding work between the intermediate component plate and the inner platform positioning plate is carried out using the inner platform positioning plate as a jig. During the welding process, the dimensions of the center line, straightness and flatness of the mounting holes of the intermediate component plate and the inner platform positioning plate are controlled. At the same time, the center line and straightness of the mounting holes need to be monitored in real time during the welding process.

[0035] Step D: After the intermediate component plate and the inner platform positioning plate are welded together, the outer platform assembly plate is flipped onto the intermediate component plate to complete the positioning. At the same time, the center line and straightness of the mounting holes opened on the intermediate component plate, the inner platform positioning plate and the outer platform assembly plate are controlled.

[0036] Step E, the key to precision control of the lower guide slide base is the control of the distance between the guide plate and the meshing center line of the gearbox. Before manufacturing, the center line of the lower guide slide base is hammered and positioned by using a punch.

[0037] Step F involves assembling and welding the upper guide slide base, gearbox base, and lower guide slide base. During welding, the guide center lines of the upper guide slide base, gearbox base, and lower guide slide base, as well as the center lines of the intermediate components, must coincide.

[0038] After the guide slide base, gearbox base and lower guide slide base are installed, the weld seam is fixed at the closing joint position using a long row of not less than 1M to avoid upward warping and deformation of the weld at the closing position.

[0039] Among them, when manufacturing the jig frame for the inner platform positioning plate and the outer platform assembly plate, 5mm anti-deformation plates need to be added to the upper and lower ends of the center position of the intermediate component plate.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A precision control process for a mounting frame used in an offshore wind power installation platform, characterized in that: The mounting frame is welded together from top to bottom as an upper guide slide base, a gearbox base, and a lower guide slide base. The upper guide slide base includes a middle partition plate, side plates are symmetrically arranged on the left and right sides of the middle partition plate, and a top platform and a bottom platform are respectively arranged on the upper and lower sides of the middle partition plate. A plurality of first upright plates are fixedly connected to the middle partition plate and are distributed at equal intervals. The first upright plates extend along the length direction of the middle partition plate. The gearbox base includes an intermediate component plate and an outer platform assembly plate and an inner platform positioning plate respectively disposed on both sides of the intermediate component plate. Multiple second vertical plates are fixedly connected to the intermediate component plate, which are distributed at equal intervals and extend along the length direction of the intermediate component plate. The lower guide groove base includes a guide plate and several gearboxes symmetrically installed on both sides of the guide plate at equal distances. The precision control process includes the following steps: Step A: The precision control of the upper guide slide base part lies in the control of the distance between the guide plate and the meshing center line of the gearbox. Before manufacturing, the center line of the upper guide slide base part is positioned by hammering with a punch. First, the top platform is welded together. Using the middle partition as a base, the first vertical plate is welded in sequence. After the welding is completed, the side plates and the bottom platform are installed. The middle partition with the first vertical plate, side plates and bottom platform installed is inverted on the top platform to complete the welding work of the upper guide slide base part. Step B, the precision control of the gearbox base part is to strictly follow the welding sequence during the welding process to control the center distance and spacing of the twelve mounting holes, put the intermediate component plate on the mold, and pay attention to adding anti-deformation. After the marking is completed, report and seal the mold, and weld multiple second upright plates to the intermediate component plate. At the same time, during the welding, control the spacing of multiple mounting holes, center distance, and platform flatness measurement. Step C: After the intermediate component plate is assembled and welded, the inner platform positioning plate is marked and attached to the intermediate component plate. After the positioning welding is completed, the plate is flipped over and the welding work between the intermediate component plate and the inner platform positioning plate is carried out using the inner platform positioning plate as a jig. During the welding process, the dimensions of the center line, straightness and flatness of the mounting holes of the intermediate component plate and the inner platform positioning plate are controlled. At the same time, the center line and straightness of the mounting holes need to be monitored in real time during the welding process. Step D: After the intermediate component plate and the inner platform positioning plate are welded together, the outer platform assembly plate is flipped onto the intermediate component plate to complete the positioning. At the same time, the center line and straightness of the mounting holes opened on the intermediate component plate, the inner platform positioning plate and the outer platform assembly plate are controlled. Step E, the key to precision control of the lower guide slide base is the control of the distance between the guide plate and the meshing center line of the gearbox. Before manufacturing, the center line of the lower guide slide base is hammered and positioned by using a punch. Step F involves assembling and welding the upper guide slide base, gearbox base, and lower guide slide base. During welding, the guide center lines of the upper guide slide base, gearbox base, and lower guide slide base, as well as the center lines of the intermediate components, must coincide.

2. The precision control process for a mounting frame used in an offshore wind power installation platform according to claim 1, characterized in that: The intermediate component plate, the outer platform assembly plate, and the inner platform positioning plate are all provided with twelve evenly distributed mounting holes.

3. The precision control process for a mounting frame used in an offshore wind power installation platform according to claim 1, characterized in that: After the inner platform positioning plate, intermediate component plate and outer platform assembly plate are assembled, steel wire angle steel with sufficient rigidity needs to be welded to the upper and lower ends of the inner platform positioning plate, intermediate component plate and outer platform assembly plate to measure and control concentricity and straightness.

4. The precision control process for a mounting frame used in an offshore wind power installation platform according to claim 1, characterized in that: After the guide slide base, gearbox base and lower guide slide base are installed, the weld is fixed at the closing joint position using a long row of not less than 1 meter to prevent the weld from warping or deforming at the closing position.

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