Flange ring mounting device

Abstract

The utility model relates to the technical field of flange ring installation, in particular to a flange ring installation device which comprises a modified flange ring and a reinforcing assembly, the reinforcing assembly is composed of a plurality of telescopic arms, the telescopic arms are arranged in a circle and connected through series connection rings arranged at one ends of the telescopic arms, and second bolt holes are formed in the other ends of the telescopic arms. The telescopic arm and the refitted flange are connected by arranging the reinforcing bolts penetrating through the first bolt holes and the second bolt holes, the refitted flange ring and the reinforcing assembly are rapidly, simply and conveniently connected through the preset first bolt holes, the second bolt holes and the high-strength bolts, operation is convenient and fast, and the telescopic arm in the reinforcing assembly is designed to be in a retractable state; and folding combination is realized through the series rings, so that the whole device is more compact and portable during transportation and storage.

Description

Technical Field

[0001] This utility model relates to the field of flange ring installation technology, specifically a flange ring installation device. Background Technology

[0002] The wind turbine tower is a crucial component of a wind turbine. Its manufacturing process typically employs multi-section welding technology, with flanges welded to both ends of each section to form semi-finished sections. These semi-finished sections undergo sandblasting, painting, and assembly with related accessories to become finished sections. After being transported to the wind turbine installation site, the finished sections are assembled into a complete wind turbine tower by bolting together the flanges of adjacent sections.

[0003] However, in existing processes, flange connections rely heavily on manual operation, which can easily lead to flange deformation during installation and transportation, shortening their service life and consequently affecting the overall performance and lifespan of the wind turbine. Furthermore, existing flange connection devices suffer from inconvenient maintenance and the inability to reuse reinforcement components; these issues urgently require effective solutions. Utility Model Content

[0004] The purpose of this invention is to provide a flange ring mounting device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A flange ring mounting device includes a modified flange ring and a reinforcement assembly:

[0007] The modified flange ring includes an inner ring and an outer ring, and the inner ring has several bolt holes.

[0008] The reinforcement assembly consists of several telescopic arms arranged in a circle and connected by a series ring at the end of each telescopic arm. The other end of each telescopic arm has a second bolt hole. After adjusting the length of the telescopic arm, the second bolt hole is aligned with the first bolt hole. The telescopic arm and the modified flange are connected by high-strength bolts that pass through the first and second bolt holes.

[0009] Preferably, the telescopic arm includes a sleeve, a connecting ring disposed on the sleeve and sleeved on the connecting ring, a movable rod inserted into the sleeve, a fixing hole opened on the movable rod, a fixing rod inserted into the sleeve, a pull plate disposed on the fixing rod, and a spring sleeved on the fixing rod, wherein the second bolt hole is opened on the movable rod.

[0010] Preferably, when the pull plate is pulled, the pull plate causes the fixing rod to leave the fixing hole, allowing the moving rod to move along the sleeve and adjust the position of the bolt hole. When the pull plate is released, the spring causes the fixing rod to insert into the fixing hole and fix the moving rod.

[0011] Preferably, the connecting ring is used to allow the telescopic arm to rotate along the connecting ring when the bolt hole two is not fixed by the high-strength bolt.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The modified flange ring and reinforcement components can be quickly and easily connected through pre-set bolt holes one and two, as well as high-strength bolts, making the operation convenient;

[0014] 2. The telescopic arm in the reinforcement component is designed to be retractable and can be folded and combined through a series ring, making the whole device more compact and portable during transportation and storage;

[0015] 3. During maintenance or replacement, the reinforcement components can be recycled simply by removing the high-strength bolts, thereby reducing maintenance costs and increasing the reusability of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the modified flange of this utility model;

[0018] Figure 3 This is a schematic diagram of the telescopic arm of this utility model.

[0019] In the diagram: 1. Inner ring; 2. Outer ring; 3. Bolt hole one; 4. Connecting ring; 5. High-strength bolt; 6. Sleeve; 7. Connecting ring; 8. Moving rod; 9. Fixing hole; 10. Fixing rod; 11. Pull plate; 12. Spring; 13. Bolt hole two. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 3 This utility model provides a technical solution:

[0022] A flange ring mounting device includes a modified flange ring and a reinforcement assembly, wherein:

[0023] The modified flange ring includes an inner ring 1 and an outer ring 2. The outer ring 2 is similar to a conventional flange in the prior art. The inner ring 1 is located at the center of the outer ring 2. A certain number of bolt holes 3 are pre-set on the inner ring 1.

[0024] The inner ring 1 and outer ring 2 of the modified flange ring adopt an integrated molding design concept. They are made of ASTM A36 carbon manganese steel through die forging and undergo heat treatment (quenching + tempering, hardness reaching HRC28-32). Through material homogeneity and process consistency, the modified flange ring achieves excellent tensile strength (≥500MPa), fatigue resistance, and coefficient of thermal expansion (11.5×10⁻⁻⁻⁶). 6 The high degree of uniformity in key indicators such as (°C) ensures the consistency and stability of the overall structure under stress and during long-term use.

[0025] The fixing component consists of several telescopic arms, which are arranged in a circle and connected to the tandem ring 4. Each telescopic arm has a corresponding bolt hole 13. By using high-strength bolts 5 to pass through bolt holes 3 and 13, the telescopic arm and the inner ring 1 of the modified flange are fixedly connected to form an integral structure, which effectively prevents the connection from loosening or failing due to deformation of the modified flange during installation, transportation and operation.

[0026] The telescopic boom includes a sleeve 6, a connecting ring 7, a moving rod 8, a fixing hole 9, a fixing rod 10, a pull plate 11, and a spring 12. The connecting ring 7 is mounted on the sleeve 6 and sleeved on the connecting ring 4. The connecting ring 7 and the sleeve 6 are fixedly connected by integral molding or welding. The connecting ring 7 is rotatably connected to the connecting ring 4. The moving rod 8 is inserted into the sleeve 6 and is movably connected to the sleeve 6. The fixing hole 9 is formed on the moving rod 8, and several fixing holes 9 are provided on the moving rod 8 in a straight line. The fixing rod 10 is inserted into the sleeve 6 and is movably connected to the sleeve 6. The pull plate 11 is mounted on the fixing rod 12. On the upper part, the pull plate 11 is fixedly connected to the fixed rod 10 by means of screws or welding. The spring 12 is sleeved on the fixed rod 10. One end of the spring 12 is fixedly connected to the pull plate 11 by means of welding, and the other end of the spring 12 is fixedly connected to the sleeve 6 by means of welding or setting a clamp. The bolt hole 2 13 is opened on the moving rod 8. When the pull plate 11 is pulled, the pull plate 11 drives the fixed rod 10 away from the fixed hole 9, so that the moving rod 8 can move along the sleeve 6 to adjust the position of the bolt hole 2 13. When the pull plate 11 is released, the spring 12 drives the fixed rod 10 to insert into the fixed hole 9, and fix the moving rod 8.

[0027] When installing the telescopic arm on the series ring 4, a slot is reserved on the series ring 4. After inserting the connecting ring 7 into the slot of the series ring 4, the through hole can be aligned with the series ring 4, thereby moving the connecting ring 7 to fit onto the series ring 4. Finally, the slot of the series ring 4 is welded on to complete the installation of the connecting ring 7. By setting the series ring 4 so that it passes through the connecting ring 7, multiple telescopic arms can rotate around the series ring 4 with the center of the circular hole on the connecting ring 7 as the rotation center. This allows the telescopic arms to be flexibly folded and bundled, thereby greatly reducing the space occupied during transportation and storage, and improving the portability and loading and unloading efficiency of the device.

[0028] Each telescopic boom is made of lightweight, high-strength steel, which not only gives the overall structure the advantage of being lightweight, but also ensures sufficient strength and durability.

[0029] Each telescopic boom is designed to be freely adjustable, allowing for flexible adjustments based on the actual installation environment and the stress conditions of the modified flange. This helps to mitigate potential localized deformation issues that may occur during installation or use of the modified flange, ensuring the stability of the overall structure and extending its service life.

[0030] The telescopic boom is made of EN 10025 standard S355J2+N low alloy high strength steel laser-cut into shape. This not only makes the overall weight of the reinforcement components lighter, making them easier to carry and install, but also meets the high strength requirements.

[0031] The telescopic arm is assembled with a precision-machined sleeve 6 and a moving rod 8, which has an adjustable length function. It can flexibly and accurately adjust the extension scale according to different working conditions during the flange reinforcement process, such as the size and stress state of the flange. The end of the telescopic arm can also be integrated with ISO 9409-1 standard flange positioning pins, which can quickly connect to DN50-DN300 series flanges.

[0032] By setting the fixing rod 10 and fixing hole 9, the telescopic boom can effectively resist the displacement or retraction that may occur due to external forces (such as axial force, bending moment force, torque force, etc.) during the flange reinforcement operation. This ensures that the telescopic boom maintains its established shape throughout the reinforcement operation, providing stable and precise support for the flange reinforcement work. This significantly improves the reliability and safety of the reinforcement operation and plays a key role in ensuring the stability and safety of the flange connection structure.

[0033] During the operation of a wind power generation system, the wind turbine tower, as a key supporting structure, bears complex mechanical loads. Dynamic changes in wind load, the tower's own weight, and the mechanical forces generated during turbine operation collectively cause the tower to experience tensile or compressive stresses in the axial direction. These axial forces act directly on the tower flange connection, posing a challenge to the stability of the connection. This reinforcement component, employing a ring truss topology optimization design, effectively assists the tower flange in resisting these axial forces. Utilizing the structure's own load-bearing capacity and constraint mechanisms, it suppresses axial displacement and loosening at the connection points, ensuring the structural integrity of the tower under axial loads. Under extreme conditions such as strong winds, the wind turbine tower will undergo bending deformation, causing the tower flange connection to experience significant bending moments. The application of bending moments can easily lead to stress concentration in localized areas of the flange; if this exceeds the material's allowable stress, it may cause structural failure. The reinforcement components play a crucial role in stress dispersion and load bearing. Through fan-shaped ribs, they convert bending moments into shear flow, effectively bearing and dispersing them. This prevents flange failures such as cracking and deformation due to localized stress concentration, ensuring the safe operation of the tower under bending loads. Furthermore, uneven wind distribution and the dynamic characteristics of the turbine during operation can cause torsional effects in the tower, generating torque forces at the flange connections. The presence of torque also threatens the stability of the flange connections, potentially leading to loosening or bolt failure. The reinforcement components, through their torsional resistance design, effectively resist these torque forces, maintaining the stability of the flange connections and ensuring reliable tower operation under complex torsional conditions. This provides a vital guarantee for the stable operation of wind power generation systems.

[0034] Working principle: When in use, pull the pull plate 11, which will cause the fixed rod 10 to move away from the fixed hole 9, allowing the moving rod 8 to move along the sleeve 6. Adjust the position of the second bolt hole 13 so that the second bolt hole 13 is aligned with the first bolt hole 3. Release the pull plate 11, which will cause the spring 12 to drive the fixed rod 10 into the fixed hole 9, thus fixing the moving rod 8. Then, insert the high-strength bolt 5 into the first bolt hole and the second bolt hole 13 to fix the telescopic arm and the inner ring 1 of the modified flange.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flange ring mounting device, comprising a modified flange ring and a reinforcing assembly, characterized in that: the modified flange ring comprises an inner ring and an outer ring, and a plurality of bolt holes are formed on the inner ring; the reinforcing assembly is composed of a plurality of telescopic arms arranged in a circular shape and connected by a series ring arranged at the end of the telescopic arms, and the other end of the telescopic arms is provided with bolt holes two, the telescopic arms are adjusted in length to align the bolt holes two with the bolt holes one, and the telescopic arms and the modified flange are connected by high-strength bolts passing through the bolt holes one and the bolt holes two; the telescopic arm comprises a sleeve, a connecting ring arranged on the sleeve and sleeved on the series ring, a moving rod inserted into the sleeve, a fixing hole formed on the moving rod, a fixing rod inserted into the sleeve, a pull plate arranged on the fixing rod, and a spring sleeved on the fixing rod, and the bolt holes two are formed on the moving rod.

2. A flange ring mounting device according to claim 1, characterised in that: When the pull plate is pulled, the pull plate drives the fixing rod to move away from the fixing hole, so that the moving rod can move along the sleeve to adjust the position of the bolt holes two, and when the pull plate is released, the spring drives the fixing rod to insert into the fixing hole to fix the moving rod.

3. A flange ring mounting device according to claim 1, characterized in that: The connecting ring is used to rotate the telescopic arm along the series ring when the bolt holes two are not fixed by the high-strength bolts.

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