Assembly type transformer substation steel column hoisting system and hoisting method thereof

Abstract

The invention discloses a fabricated transformer substation steel column hoisting system and a hoisting method thereof, and relates to the technical field of steel column hoisting. Aiming at the specific requirement of hoisting the steel column of the assembled transformer substation, the existing hoisting system is generally low in adaptability, complicated in operation and high in cost. The system comprises a crane, a hoisting load-bearing rope, a center penetrating rod, a hoisting rope load-bearing rod, an automatic buckle falling device and a pull rope, through combination of the crane, the hoisting load-bearing rope, the center penetrating rod, the hoisting rope load-bearing rod, the automatic buckle falling device and the pull rope, after a steel column is hoisted in place and a prefabricated grounding lug and an insertion type prefabricated foot are connected and fixed, the automatic buckle falling device is pulled through the pull rope, and then the prefabricated grounding lug and the insertion type prefabricated foot are connected and fixed. And then the center penetrating rod is moved out of the hoisting penetrating hole of the steel column through a crane, so that the hoisting system is separated from the steel column. The hoisting operation of the steel column is conveniently realized, the automatic unhooking of the hoisting rope can be realized without manual high-altitude operation, and the safety and efficiency of construction are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel column hoisting, and in particular to a steel column hoisting system and a hoisting method for an assembled substation. Background Art

[0002] In the construction process of prefabricated substations, the hoisting of steel columns is a crucial link. Traditional hoisting methods often rely on a lot of manual operations, especially after the steel columns are hoisted and fixed, operators are required to climb up to remove the locks, which not only increases the risk of high-altitude operations, but also affects construction efficiency. With the transformation of substation construction towards standardization, factory production, and modularization, higher requirements are placed on the safety and efficiency of steel structure construction.

[0003] At present, although some automated lifting systems are used in the construction industry, these systems often have problems such as poor adaptability, complex operation, and high cost in view of the specific needs of steel column lifting for prefabricated substations. Therefore, it is particularly important to develop an automatic unhooking lifting system that can not only meet the requirements of steel column lifting for prefabricated substations, but also reduce construction risks and improve work efficiency. Summary of the invention

[0004] The technical problem to be solved and the technical task proposed by the present invention are to improve and perfect the existing technical solutions, and provide a prefabricated substation steel column hoisting system and hoisting method thereof, so as to improve the hoisting construction efficiency and safety. To this end, the present invention adopts the following technical solutions.

[0005] A prefabricated substation steel column lifting system comprises a crane, a lifting load-bearing rope, a through-hole, a lifting rope load-bearing rod, an automatic buckle device and a pull rope. The upper end of the steel column is provided with a transverse lifting through-hole, the through-hole passes horizontally through the lifting through-hole, the lifting load-bearing rope is hung on the hook of the crane, and forks from the crane hook to the left and right sides below, and is respectively connected to the left and right ends of the lifting rope load-bearing rod and then vertically downward respectively, the left lower end of the lifting load-bearing rope is connected to the left end of the through-hole, the right lower end of the lifting load-bearing rope is movably connected to the right end of the through-hole and then fixed by the automatic buckle device, the fixed end of the pull rope is connected and fixed to the left end of the through-hole, the automatic buckle device is connected to the pull rope and can be opened by pulling the pull rope, after the automatic buckle device is opened and dropped, the right lower end of the lifting load-bearing rope can be separated from the right end of the through-hole. The system realizes the lifting operation of the steel column through the combination of a crane, lifting load-bearing rope, a through rod, a lifting rope load-bearing rod, an automatic drop-button device and a pull rope. The design of the automatic drop-button device and the pull rope enables the lifting rope to be automatically unhooked after the steel column is lifted into place without the need for manual high-altitude work, greatly improving the safety and efficiency of the construction.

[0006] As a preferred technical means: the lower left and right ends of the hoisting load-bearing rope are respectively sleeved on the left and right sides of the through-core rod through collars, the left end of the through-core rod is provided with an anti-slip structure to prevent the collar at the left end from escaping from the through-core rod to the left, and the collar at the right end of the through-core rod is limited and prevented from slipping by the automatic buckle-dropping device. The structure is simple and the reliability of operation is high.

[0007] As a preferred technical means: the lifting rope load-bearing rod comprises an internally threaded tube and two threaded rods, and the two threaded rods are respectively connected to the two ends of the internally threaded tube by threads and can be rotatably screwed in and out. Through the combination of the internally threaded tube and the threaded rod, the length of the lifting rope load-bearing rod can be adjusted according to actual needs, thereby adapting to the lifting requirements of steel columns of different heights and weights, and improving the flexibility and adaptability of the lifting system.

[0008] As a preferred technical means: the internally threaded pipe is connected to the hook of the crane through a left-right symmetrical balance rope. By adding the balance rope, the stability and balance of the hoisting system can be effectively improved.

[0009] As a preferred technical means: the crane is provided with a double limit device for ensuring safe limit during the hoisting process. By providing the double limit device, the crane can be ensured to operate within the specified range during the hoisting process to avoid exceeding the range or losing control.

[0010] As a preferred technical means: the hoisting load-bearing rope is a steel wire rope. The steel wire rope has high strength and wear resistance, can withstand large tension and pressure, and ensure the safety and reliability of the hoisting process.

[0011] As a preferred technical means: the pull rope is made of Dyneema rope. Dyneema rope has the characteristics of high strength, low elongation and wear resistance, and is relatively light and has good operability.

[0012] A method for hoisting a steel column hoisting system for an assembled substation comprises the following steps: 1) Connect the hoisting load-bearing rope of the hoisting system to the hook of the crane. The through-rod of the hoisting system passes through the hoisting hole of the steel column and then is sleeved with the hoisting load-bearing rope and locked and fixed through the automatic buckle device to prevent it from falling off; 2) Install the prefabricated grounding ears and the inserted prefabricated feet on the bottom of the steel column and the foundation for the steel column installation respectively; 3) Lift the steel column to the top of the installation location. The construction workers adjust the crane operation to align the steel column with the inserted prefabricated foot, then slowly lower it into place and connect and fix the prefabricated grounding ear and the inserted prefabricated foot; 4) Pull the pull rope obliquely to the lower right side to open the automatic buckle device and separate the automatic buckle device from the core rod; 5) The construction personnel operate the crane to drive the hoisting system to move to the left, so that the through-rod moves to the left and leaves the hoisting hole of the steel column, completing the hoisting of the steel column. This method is easy to operate and can effectively guide the construction personnel to carry out the hoisting operation of the steel column. By pulling the rope to operate the automatic buckle device, automatic unhooking can be achieved without high-altitude operation, which greatly improves the safety and efficiency of the construction. At the same time, this method also takes into account the docking and fixing steps of the steel column and the foundation, ensuring the stability and reliability of the steel column after hoisting.

[0013] Beneficial effects: This system and hoisting method effectively realize the hoisting operation of the steel column. The design of the automatic buckle device and the pull rope makes it possible to automatically unhook the hoisting rope after the steel column is hoisted into place without manual high-altitude operation, greatly improving the safety and efficiency of the construction. At the same time, this method also takes into account the docking and fixing steps of the steel column and the foundation, ensuring the stability and reliability of the steel column after hoisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the hoisting of the system of the present invention.

[0015] Figure 2 It is a schematic diagram of the system tripping process in the present invention.

[0016] Figure 3 It is a schematic diagram of the suspension rope load-bearing rod in the present invention.

[0017] Figure 4 It is a schematic diagram of the hoisting process of the present invention.

[0018] In the figure: 1. Lifting load-bearing rope; 2. Through-hole rod; 3. Lifting rope load-bearing rod; 4. Automatic buckle device; 5. Pull rope; 6. Balance rope; 7. Hook; 8. Steel column; 9. Prefabricated grounding ear; 10. Inserted prefabricated foot; 11. Foundation; 301. Internally threaded pipe; 302. Threaded rod. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0020] In the description of the present invention, it should be understood that the terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0021] like Figure 1 , 2 As shown, a prefabricated substation steel column lifting system includes a crane, a lifting load-bearing rope 1, a through-rod 2, a lifting rope load-bearing rod 3, an automatic buckle device 4 and a pull rope 5. The upper end of the steel column 8 is provided with a transverse lifting through-hole, and the through-rod 2 passes through the lifting through-hole horizontally. The lifting load-bearing rope 1 is hung on the hook 7 of the crane, and forks from the crane hook 7 to the left and right sides below, and is respectively connected to the left and right ends of the lifting rope load-bearing rod 3 and then vertically downward respectively. The left lower end of the lifting load-bearing rope 1 is connected to the left end of the through-rod 2, and the right lower end of the lifting load-bearing rope 1 is movably connected to the right end of the through-rod 2 and then fixed by the automatic buckle device 4. The fixed end of the pull rope 5 is connected and fixed to the left end of the through-rod 2, and the automatic buckle device 4 is connected to the pull rope 5 and can be opened by pulling the pull rope 5. After the automatic buckle device 4 is opened and dropped, the right lower end of the lifting load-bearing rope 1 can be separated from the right end of the through-rod 2.

[0022] In order to realize the reliable connection between the lifting rope and the through-core rod 2, the lower left and right ends of the lifting load-bearing rope 1 are respectively sleeved on the left and right sides of the through-core rod 2 through the collar, and the left end of the through-core rod 2 is provided with an anti-slip structure to prevent the collar at the left end from detaching from the through-core rod 2 to the left, and the collar at the right end of the through-core rod 2 is limited and prevented from slipping through the automatic buckle device 4. The connection between the lifting rope and the through-core rod 2 is simple and reliable, and the right end collar is prevented from slipping and limited through the automatic buckle device 4, the limiting and anti-slip structures are simple, the slipping operation is convenient, and the reliability is high.

[0023] In order to meet the lifting requirements of steel columns 8 of different heights and weights, such as Figure 3As shown, the lifting rope load-bearing rod 3 includes an internally threaded tube 301 and two threaded rods 302. The two threaded rods 302 are respectively connected to the two ends of the internally threaded tube 301 by threads and can be rotated in and out. Through the combination of the internally threaded tube 301 and the threaded rod 302, the two threaded rods 302 can be extended and retracted by rotating the internally threaded tube 301 according to actual needs, and the length of the lifting rope load-bearing rod 3 can be adjusted, so as to meet the lifting requirements of steel columns 8 of different heights and weights, thereby improving the flexibility and adaptability of the lifting system.

[0024] In order to improve the balance of the hoisting, the internal threaded tube 301 is connected to the hook 7 of the crane through the left-right symmetrical balance rope 6. By adding the balance rope 6, the stability and balance of the hoisting system can be effectively improved.

[0025] In order to improve operational safety, the crane is equipped with a double limit device to ensure safe limit during the lifting process. By setting up a double limit device, the crane can be ensured to operate within the specified range during the lifting process, avoiding situations where the crane exceeds the range or loses control, and effectively improving the safety of the lifting operation.

[0026] like Figure 2 , 4 As shown, a method for hoisting a steel column hoisting system of an assembled substation includes the following steps: S1: Connect the hoisting load-bearing rope 1 of the hoisting system to the hook 7 of the crane, and then insert the through-rod 2 of the hoisting system through the hoisting hole of the steel column 8 and then put it on the hoisting load-bearing rope 1 and lock it through the automatic buckle device 4 to prevent it from falling off; S2: Install the prefabricated grounding ear 9 and the plug-in prefabricated foot 10 on the bottom of the steel column 8 and the foundation 11 on which the steel column 8 is installed, respectively; S3: Lift the steel column 8 to the top of the installation position, and the construction personnel adjust the crane operation to align the steel column 8 with the inserted prefabricated foot 10, and then slowly lower it into place, and then connect and fix the prefabricated grounding ear 9 and the inserted prefabricated foot 10; S4: Pull the pull rope 5 obliquely to the lower right side to open the automatic buckle device 4, so that the automatic buckle device 4 is separated from the core rod 2; S5: The construction personnel operate the crane to drive the lifting system to move to the left, so that the through rod 2 is separated from the lifting hole of the steel column 8 to the left, and the lifting system is separated from the steel column 8, thereby completing the lifting of the steel column 8.

[0027] In this example, the hoisting load-bearing rope 1 uses a 6x19 steel wire rope with a diameter of 15 mm. The steel wire rope has high strength and wear resistance, can withstand large tension and pressure, and ensures safety and reliability during the hoisting process.

[0028] In this example, the pull rope 5 is made of Dyneema rope, which has the characteristics of high strength, low elongation and wear resistance, and is relatively light and has good operability.

[0029] In this example, the steel column 8 is a box-type column.

[0030] The system and method are easy to operate and can effectively guide construction personnel in the lifting operation of the steel column 8. The automatic hook-dropping device 4 is operated by pulling the rope 5, and automatic unhooking can be achieved without high-altitude operations, which greatly improves the safety and efficiency of construction. At the same time, the method also takes into account the docking and fixing steps of the steel column 8 and the foundation 11, ensuring the stability and reliability of the steel column 8 after lifting.

[0031] The above-mentioned prefabricated substation steel column lifting system and lifting method thereof are specific embodiments of the present invention, which have reflected the outstanding substantial features and progress of the present invention. According to actual use needs and under the guidance of the present invention, equivalent modifications in shape, structure, etc. can be made to them, which are all within the protection scope of this scheme.

Claims

1. A steel column hoisting system for an assembled substation, characterized by: It includes a crane, a lifting load-bearing rope, a through-hole, a lifting rope load-bearing rod, an automatic buckle device and a pull rope. The upper end of the steel column is provided with a transverse lifting through-hole, and the through-hole passes horizontally through the lifting through-hole. The lifting load-bearing rope is hung on the hook of the crane, and is forked from the crane hook to the left and right sides below, and is respectively connected to the left and right ends of the lifting rope load-bearing rod and then vertically downward. The left lower end of the lifting load-bearing rope is connected to the left end of the through-hole, and the right lower end of the lifting load-bearing rope is movably connected to the right end of the through-hole and then fixed by the automatic buckle device. The fixed end of the pull rope is connected and fixed to the left end of the through-hole, and the automatic buckle device is connected to the pull rope and can be opened by pulling the pull rope. After the automatic buckle device is opened and dropped, the right lower end of the lifting load-bearing rope can be separated from the right end of the through-hole.

2. The steel column hoisting system for an assembled substation according to claim 1 is characterized in that: The lower left end and the lower right end of the lifting load-bearing rope are respectively sleeved on the left and right sides of the through-hole rod through rings. The left end of the through-hole rod is provided with an anti-slip structure to prevent the ring at the left end from detaching from the through-hole rod to the left. The ring at the right end of the through-hole rod is limited and prevented from slipping off by the automatic buckle device.

3. The steel column hoisting system for an assembled substation according to claim 2 is characterized in that: The suspension rope load-bearing rod comprises an internal threaded tube and two threaded rods. The two threaded rods are respectively connected to the two ends of the internal threaded tube through threads and can be rotated and screwed in and out.

4. The steel column hoisting system for an assembled substation according to claim 3 is characterized in that: The internally threaded pipe is connected to the hook of the crane through a left-right symmetrical balance rope.

5. The steel column hoisting system for an assembled substation according to claim 4 is characterized in that: The crane is provided with a double limit device for the crane for ensuring safe limit during the lifting process.

6. The steel column hoisting system for an assembled substation according to claim 5 is characterized in that: The hoisting load-bearing rope is a steel wire rope.

7. The steel column hoisting system for an assembled substation according to claim 6 is characterized in that: The draw rope is made of Dyneema rope.

8. A method for assembling a steel column assembling system for a prefabricated substation according to claim 1, characterized in that The following steps are involved: 1) Connect the hoisting load-bearing rope of the hoisting system to the hook of the crane. The through-rod of the hoisting system passes through the hoisting hole of the steel column and then is sleeved with the hoisting load-bearing rope and locked and fixed through the automatic buckle device to prevent it from falling off; 2) Install the prefabricated grounding ears and the inserted prefabricated feet on the bottom of the steel column and the foundation for the steel column installation respectively; 3) Lift the steel column to the top of the installation location. The construction workers adjust the crane operation to align the steel column with the inserted prefabricated foot, then slowly lower it into place and connect and fix the prefabricated grounding ear and the inserted prefabricated foot; 4) Pull the pull rope obliquely to the lower right side to open the automatic buckle device and separate the automatic buckle device from the core rod; 5) The construction personnel operate the crane to drive the lifting system to move to the left, so that the through rod is separated from the lifting hole of the steel column to the left, thus completing the lifting of the steel column.

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