Integral installation process of electrical room of around pile type crane

Abstract

The present application relates to a kind of whole installation process of pile-mounted crane electrical room, ready to be processed electrical room, electrical room support and hydraulic lifting flat car, crane, jig, support board;Electrical room support is hoisted on hydraulic lifting flat car by crane, then electrical room is hoisted on electrical room support by crane, and fixed to form electrical room whole;Electrical room whole is moved to the below of rotary platform by hydraulic lifting flat car, and welding is fixed, then four jigs are used to support at the four corners of the bottom end of electrical room support respectively.The installation process in the present application, first, electrical room and electrical room support are connected to form electrical room whole, then electrical room whole and rotary platform are welded, such installation mode, even if electrical room support deformation occurs when subsequent electrical room support moves or is welded, it will not affect the connection between electrical room and electrical room support, ensure the smooth installation.

Description

Technical Field

[0001] This invention relates to the field of crane manufacturing, and in particular to an overall installation process for the electrical room of a pile-driven crane. Background Technology

[0002] With the continuous development of the marine industry worldwide, the demand for large-scale marine engineering equipment is becoming increasingly urgent. Among them, the marine slewing crane is a key piece of marine engineering equipment for offshore oil drilling platforms. It is an integrated electromechanical-hydraulic device with high technical content and high cost. Slewing piles are usually installed on the legs of various types of offshore platforms, and they have advantages such as small platform space occupation, compact structure, large lifting capacity, and long lifting radius.

[0003] The main components of a slewing pile crane include a base column, a slewing platform, a lifting mechanism, and an electrical room. The slewing platform is rotatably mounted on the base column, while the lifting mechanism is mounted on the slewing platform. Sufficient space is provided in the middle of both the base column and the slewing platform to allow the pile legs to pass through. The electrical room is located below the slewing platform and is used to supply power to the slewing pile crane and to monitor and control its operation. This is particularly important for ensuring the operability, reliability, and maintainability of the offshore slewing pile crane.

[0004] Currently, the installation of electrical rooms usually requires the assistance of electrical room brackets. First, the electrical room brackets are fixed to the bottom of the rotating platform by welding. Then, the electrical room is hoisted into the electrical room brackets from the side using a hoisting method. Finally, bolts are used to fix the electrical room and the electrical room brackets in place. The above installation method has several drawbacks: Since the electrical room and its support frame are fixed with bolts, the bolt holes on both must be aligned before subsequent fixing can proceed. However, hoisting the electrical room in from the side cannot achieve this in one go; multiple, repeated movements are required to align it, which is very cumbersome. Furthermore, the side-hoisting method is subject to interference from components such as the rotating platform, resulting in insufficient space for smooth hoisting and extending the hoisting time. Additionally, the bolt holes on both the electrical room support frame and the electrical room are pre-machined. During hoisting, the electrical room cannot be guaranteed to remain suspended; there will inevitably be some impact from the electrical room to the support frame. This can cause deformation of the support frame, altering the shape and position of the bolt holes, making alignment impossible and requiring on-site re-drilling, which is extremely troublesome. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an overall installation process for the electrical room of a slewing crane that facilitates the installation of the electrical room.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: an overall installation process for the electrical room of a slewing crane, wherein the electrical room comprises an electrical room and an electrical room support frame, the electrical room support frame is installed below the slewing platform of the slewing crane, the electrical room is installed on the electrical room support frame, and the electrical room and the electrical room support frame are fixed together by bolts. Bolt holes for mates with the bolts are provided on both the electrical room and the electrical room support frame. The innovation lies in that the installation process includes the following steps:

[0007] S1: First, prepare the processed electrical room, electrical room bracket, and tools required for the overall installation of the electrical room, including hydraulic lifting flatbed truck, crane, jig, and supporting wooden planks;

[0008] S2: Next, place several parallel supporting wooden boards on the upper surface of the hydraulic lifting flatbed truck, and then use a crane to lift the electrical room bracket onto the supporting wooden boards;

[0009] S3: Next, the electrical room is lifted by a crane to the top of the electrical room support and placed on the electrical room support. Before the bottom of the electrical room contacts the electrical room support, bolts are used to pass through the bolt holes on the electrical room and the electrical room support to initially position the relative position of the electrical room and the electrical room support. After the initial positioning, the electrical room is completely placed on the electrical room support by the crane and then bolts are used to lock the electrical room and the electrical room support to form an electrical room as a whole.

[0010] S4: Use a hydraulic lifting flatbed truck to move the entire electrical room to below the slewing platform of the slewing crane. After moving it into place, use the hydraulic lifting flatbed truck to lift the electrical room support upwards until the top of the electrical room support contacts the bottom surface of the slewing platform of the slewing crane. Then, weld the contact point between the top of the electrical room support and the bottom surface of the slewing platform of the slewing crane to fix the electrical room support to the slewing platform of the slewing crane.

[0011] S5: Finally, after welding is completed, the hydraulic lifting flatbed truck is removed, leaving the electrical room support suspended in the air. Then, four jigs are used to support the four corners at the bottom of the electrical room support, providing auxiliary support to the bottom of the electrical room support, thus completing the overall installation of the electrical room.

[0012] Furthermore, the electrical room support includes

[0013] A horizontally positioned base is a rectangular plate with an H-beam connected to each of its four edges. The H-beams extend along the edges of the base, and adjacent H-beams are connected end to end to form an enclosed structure.

[0014] The connecting rod group is connected to the base. There are two groups of connecting rods, located on both sides of the width direction of the base. Each group of connecting rods consists of several connecting rods arranged in parallel along the long axis of the base. The connecting rods are vertically connected to the base. Among the connecting rods that make up the same group of connecting rods, at least two connecting rods are also equipped with shackles.

[0015] In the same group of connecting rods, an inclined reinforcing rod is also connected between each pair of adjacent connecting rods. One side of the reinforcing rod is connected to the top of one of the connecting rods, and the other side is connected to the base. The inclination directions of the two adjacent reinforcing rods are opposite, so that the two adjacent reinforcing rods are distributed in a V-shape or an inverted V-shape.

[0016] There are two guardrails connected to the base, which are respectively connected to both sides of the base along its long axis.

[0017] Furthermore, a reinforcing plate is connected to the bottom surface of the base. The reinforcing plate is located within the enclosed structure formed by the H-beams. Each reinforcing plate is arranged in parallel along the long axis of the base and extends along the width of the base.

[0018] Furthermore, the reinforcing plate is an H-beam.

[0019] The advantages of this invention are as follows: The installation process of this invention first connects the electrical room and the electrical room support to form an electrical room assembly, and then welds the electrical room assembly to the rotating platform. This installation method ensures that even if the electrical room support deforms during subsequent movement or welding, it will not affect the connection between the electrical rooms and the electrical room support, thus ensuring smooth installation. It also eliminates the need to re-process bolt holes, making the entire installation process very convenient.

[0020] By improving the structure of the electrical room support frame, and using H-beams, reinforcing rods, and other structural elements, the structure of the base, the connecting rods, and the connection between the base and the connecting rods are strengthened and stabilized. This approach reduces the weight of the electrical room support frame as much as possible while improving its overall structural strength and minimizing the possibility of deformation.

[0021] The reinforcing plate on the bottom surface of the base is designed to enhance the structural strength of the base, thereby preventing deformation. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] Figure 1 This is a schematic diagram of the electrical room support frame in this invention.

[0024] Figure 2 This is a schematic diagram of the hoisting of the electrical room support frame in this invention.

[0025] Figure 3 This is a schematic diagram of the hoisting of the electrical room in this invention.

[0026] Figure 4 This is a schematic diagram of the overall transfer of the electrical room in this invention.

[0027] Figure 5 This is a schematic diagram of the overall installation of the electrical room in this invention. Detailed Implementation

[0028] The following embodiments are intended to enable those skilled in the art to more fully understand the present invention, but do not limit the invention to the scope of the embodiments described.

[0029] like Figures 1-5 As shown, the pile-spinning crane of the present invention includes a slewing platform 6 and an electrical room assembly installed below the slewing platform 6. The electrical room assembly includes an electrical room 1 and an electrical room support 2. The electrical room support 2 is installed below the slewing platform 6 of the pile-spinning crane, and the electrical room 1 is installed on the electrical room support 2. The electrical room 1 and the electrical room support 2 are fixed together by bolts. Bolt holes for matching bolts are opened on both the electrical room 1 and the electrical room support 2.

[0030] like Figure 1 As shown in the schematic diagram, the electrical room support 2 includes...

[0031] A horizontally positioned base 21 is a rectangular plate with bolt holes for connecting to the electrical room 1. An H-beam 22 is connected to each of the four edges of the base 21. The H-beam 22 extends along the corresponding edges of the base 21, and adjacent H-beams 22 are connected end to end to form an enclosed structure.

[0032] A reinforcing plate 27 is also connected to the bottom surface of the base 21. The reinforcing plate 27 is an H-shaped steel structure, located within the enclosed structure formed by the H-shaped steel 22. The reinforcing plates 27 are arranged side by side along the long axis of the base 21 and extend along the width of the base. The design of the reinforcing plates 27 on the bottom surface of the base 21 is to strengthen the structural strength of the base 21, improve its structural strength, and prevent deformation.

[0033] The connecting rod assembly is connected to the base 21. There are two sets of connecting rod assemblies, located on both sides of the width direction of the base 21. Each set of connecting rod assemblies consists of several connecting rods 23 arranged in parallel along the long axis of the base 21. The connecting rods 23 are vertically connected to the base 21 and are also H-shaped steel structures. The bottom end of the connecting rod 23 is directly welded and fixed to the upper end face of the base 21. Among the connecting rods 23 that make up the same set of connecting rod assemblies, two connecting rods 23 are also equipped with shackles 24.

[0034] In the same group of connecting rods, each of the two adjacent connecting rods 23 is connected by an inclined reinforcing rod 25. The reinforcing rod 25 is also an H-shaped steel structure. One side of the reinforcing rod 25 is connected to the top of one of the connecting rods 23, and the other side of the reinforcing rod 25 is connected to the base 21. The connection between the reinforcing rod 25 and the base 21 is located near the other connecting rod 23. The two adjacent reinforcing rods 25 are inclined in opposite directions, so that the two adjacent reinforcing rods 25 are distributed in a V-shape or an inverted V-shape.

[0035] There are two guardrails 26 connected to the base 21, which are connected to both sides of the long axis of the base 21 respectively.

[0036] The overall installation process of the electrical room for the pile-spinning crane of the present invention is achieved through the following steps:

[0037] S1: First, prepare the processed electrical room 1, electrical room bracket 2, and the tools required for the overall installation of the electrical room, including hydraulic lifting flatbed truck 4, crane 3, jig 7, and supporting wooden plank 5.

[0038] S2: Next, several parallel supporting wooden boards 5 are placed on the upper surface of the hydraulic lifting flatbed trolley 4. The supporting wooden boards 5 are all long strips. Then, the electrical room bracket 2 is hoisted onto the supporting wooden boards 5 by the crane 3. The supporting wooden boards 5 serve as a partition between the electrical room bracket 2 and the hydraulic lifting flatbed trolley 4, preventing direct contact between them. Since the electrical room bracket 2 and the hydraulic lifting flatbed trolley 4 are not fixed, when the hydraulic lifting flatbed trolley 4 moves the electrical room bracket 2, the electrical room bracket 2 may slide on the hydraulic lifting flatbed trolley 4. This is especially true when the hydraulic lifting flatbed trolley 4 starts or stops, which makes slight sliding of the electrical room bracket 2 more likely. Therefore, the supporting wooden boards 5 serve as a partition and protection, so that even if the electrical room bracket 2 slides between itself and the supporting wooden boards 5, it will not cause damage to the electrical room bracket 2.

[0039] S3: Next, the electrical room 1 is lifted by crane 3 to the top of the electrical room support frame 2, as follows: Figure 3As shown, the electrical room 1 is suspended on the base 21 of the electrical room bracket 2. Before the bottom surface of the electrical room 1 contacts the base 21 of the electrical room bracket 2, bolts are first passed through the bolt holes on the electrical room 1 and the base 21 of the electrical room bracket 2 to initially position the relative position of the electrical room 1 and the electrical room bracket 2. After the initial positioning, the crane 3 completely places the electrical room 1 on the base 21 of the electrical room bracket 2, and then bolts are used to lock it, fixing the electrical room 1 and the electrical room bracket 2 to form an electrical room as a whole.

[0040] S4: Use the hydraulic lifting flatbed truck 4 to move the entire electrical room to below the slewing platform 6 of the pile-spinning crane, as follows: Figure 4 As shown, after the electrical room support 2 is moved into place, the hydraulic lifting flatbed truck 4 is used to lift the electrical room support 2 upward until the top of the connecting rod 23 of the electrical room support 2 contacts the bottom surface of the slewing platform 6 of the pile-spinning crane. Then, the contact point between the top of the connecting rod 23 of the electrical room support and the bottom surface of the slewing platform 6 of the pile-spinning crane is welded to achieve the fixation between the electrical room support 2 and the slewing platform 6 of the pile-spinning crane.

[0041] S5: Finally, after welding, the hydraulic lifting flatbed trolley 4 is removed, leaving the bottom of the electrical room support 2 suspended in the air. Four jigs 7 are then used to support the four corners of the bottom of the electrical room support 2, providing auxiliary support to prevent excessive pressure on the electrical room support 2 due to the weight of the electrical room 1. This further reduces the possibility of deformation of the electrical room support 2, ultimately completing the overall installation of the electrical room and forming a structure as shown in the image. Figure 5 The state shown.

[0042] The installation process in this invention involves first connecting the electrical room 1 and the electrical room support 2 to form a complete electrical room assembly. The electrical room support 2 does not deform during hoisting, thus preventing changes in the position or shape of the bolt holes. This ensures a smooth connection between the electrical room 1 and the electrical room support 2. Then, the entire electrical room assembly is welded to the rotating platform 6. This installation method ensures that even if the electrical room support 2 deforms during subsequent movement or welding, the connection between the already connected electrical room 1 and the electrical room support 2 remains stable, guaranteeing a smooth installation. This eliminates the need to re-process the bolt holes, making the entire installation process very convenient. Furthermore, the improved electrical room support 2, using H-beams 22 and reinforcing rods 25, strengthens and stabilizes the structure of the base 21, the connecting rod 23, and the connection between the base 21 and the connecting rod 23. This minimizes the weight of the electrical room support 2 while increasing its overall structural strength and reducing the possibility of deformation, providing a solid foundation for successful installation.

[0043] Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An overall installation process for the electrical room of a pile-spinning crane, wherein the electrical room comprises an electrical room and an electrical room support frame, the electrical room support frame is installed below the slewing platform of the pile-spinning crane, the electrical room is installed on the electrical room support frame, and the electrical room and the electrical room support frame are fixed together by bolts, wherein bolt holes for mates with the bolts are provided on both the electrical room and the electrical room support frame, characterized in that: The electrical room support includes A horizontally positioned base is a rectangular plate with an H-beam connected to each of its four edges. The H-beams extend along the edges of the base, and adjacent H-beams are connected end to end to form an enclosed structure. The connecting rod group is connected to the base. There are two groups of connecting rods, located on both sides of the width direction of the base. Each group of connecting rods consists of several connecting rods arranged in parallel along the long axis of the base. The connecting rods are vertically connected to the base. Among the connecting rods that make up the same group of connecting rods, at least two connecting rods are also equipped with shackles. In the same group of connecting rods, an inclined reinforcing rod is also connected between each pair of adjacent connecting rods. One side of the reinforcing rod is connected to the top of one of the connecting rods, and the other side is connected to the base. The inclination directions of the two adjacent reinforcing rods are opposite, so that the two adjacent reinforcing rods are distributed in a V-shape or an inverted V-shape. There are two guardrails connected to the base, which are respectively connected to both sides of the base along its long axis. The installation process includes the following steps. S1: First, prepare the processed electrical room, electrical room bracket, and tools required for the overall installation of the electrical room, including hydraulic lifting flatbed truck, crane, jig, and supporting wooden planks; S2: Next, place several parallel supporting wooden boards on the upper surface of the hydraulic lifting flatbed truck, and then use a crane to lift the electrical room bracket onto the supporting wooden boards; S3: Next, the electrical room is lifted by a crane to the top of the electrical room support and placed on the electrical room support. Before the bottom of the electrical room contacts the electrical room support, bolts are used to pass through the bolt holes on the electrical room and the electrical room support to initially position the relative position of the electrical room and the electrical room support. After the initial positioning, the electrical room is completely placed on the electrical room support by the crane and then bolts are used to lock the electrical room and the electrical room support to form an electrical room as a whole. S4: Use a hydraulic lifting flatbed truck to move the entire electrical room to below the slewing platform of the slewing crane. After moving it into place, use the hydraulic lifting flatbed truck to lift the electrical room support upwards until the top of the electrical room support contacts the bottom surface of the slewing platform of the slewing crane. Then, weld the contact point between the top of the electrical room support and the bottom surface of the slewing platform of the slewing crane to fix the electrical room support to the slewing platform of the slewing crane. S5: Finally, after welding is completed, the hydraulic lifting flatbed truck is removed, leaving the electrical room support suspended in the air. Then, four jigs are used to support the four corners at the bottom of the electrical room support, providing auxiliary support to the bottom of the electrical room support, thus completing the overall installation of the electrical room.

2. The overall installation process of the electrical room for the pile-spinning crane according to claim 1, characterized in that: A reinforcing plate is also connected to the bottom surface of the base. The reinforcing plate is located within the enclosed structure formed by the H-beam. Each reinforcing plate is arranged in parallel along the long axis of the base and extends along the width of the base.

3. The overall installation process of the electrical room for the pile-spinning crane according to claim 2, characterized in that: The reinforcing plate is an H-beam.

Images