A vibration reduction device for a phase regulator bearing seat

Abstract

The utility model belongs to the technical field of vibration reduction of phase condenser, and specifically relates to a vibration reduction device for phase condenser bearing seat. It includes a bracket and a tuned mass damper; the bracket is installed on the phase condenser bearing seat; the tuned mass damper is used to tune energy absorption to reduce the vibration amplitude of the phase condenser bearing seat, and the tuned mass damper includes an elastic member, a fastener and a counterweight plate, the elastic member is installed on the inner side of the bracket, and the counterweight plate is installed on the elastic member through fasteners. In actual use, the utility model can effectively reduce the vibration amplitude of the phase condenser bearing seat by forming a tuned mass damper through a counterweight plate and an elastic member, and the phase condenser bearing seat vibration reduction device is installed on the phase condenser bearing seat through the bracket, which is convenient to install.

Description

Technical Field

[0001] The utility model belongs to the technical field of phase regulator vibration reduction, and in particular relates to a phase regulator bearing seat vibration reduction device. Background Art

[0002] In the power industry, especially in high-voltage direct current transmission systems, phase regulators are the core components of converter stations, and their stable operation is crucial to the safety and reliability of the system. The bearing seat vibration problem of phase regulators, as one of the key factors affecting the health of equipment, has long been the focus of the industry. Traditional vibration control methods, such as strengthening the support structure or adding counterweights, can alleviate vibration to a certain extent, but the effect is often limited and it is difficult to meet strict vibration control standards, especially in modern power systems with high precision and high performance requirements.

[0003] Patent application number CN202311607282.7 is a bearing seat with a vibration reduction device, including a mounting frame, a mounting hole is provided on the mounting frame, a plurality of support springs are provided in the mounting hole along the circumferential direction, the support spring includes a first connecting part and a second connecting part, the first connecting part is fixedly connected to the mounting hole, the second connecting part is arranged against the outer wall surface of the outer ring of the bearing, an elastic connecting part is provided between the first connecting part and the second connecting part, an elastic limiting component is provided on the side of the second connecting part close to the bearing, the elastic limiting component includes a limiting plate provided on one side of the bearing and an elastic extrusion plate provided on the other side of the bearing, the elastic extrusion plate is inclined from the second connecting part to the direction of the limiting plate toward the bearing axis. The above device can only reduce the vibration of the bearing of the bearing seat, and the overall vibration reduction effect is poor. Therefore, it is urgent for those skilled in the art to solve the above technical problems. Summary of the invention

[0004] The technical problem to be solved by the utility model is that the existing phase regulator has poor vibration reduction effect and cannot be applied to modern power systems requiring high precision and high performance.

[0005] In order to solve the above technical problems, the utility model proposes a vibration reduction device for a phase condenser bearing seat, comprising a bracket and a tuned mass damper; the bracket is installed on the phase condenser bearing seat; the tuned mass damper is used to tune energy absorption to reduce the vibration amplitude of the phase condenser bearing seat, and the tuned mass damper comprises an elastic member, a fastener and a counterweight plate, the elastic member is installed on the inner side of the bracket, and the counterweight plate is installed on the elastic member through a fastener.

[0006] Furthermore, the bracket is an integrated structure, and the elastic member is installed on the inner side of the bracket.

[0007] Compared with the split design, the one-piece bracket has higher structural strength and rigidity, can better resist external impact and vibration, and ensure the stability of the entire vibration reduction device. The one-piece design reduces the number of interfaces in the assembly process, making installation easier, while reducing the potential risk of failure due to loose interfaces, facilitating daily inspection and maintenance. The elastic parts are built into the bracket, which can make more effective use of space and make the entire device more compact. It is suitable for installation environments with limited space, such as around the phase-shifting equipment in the high-voltage DC converter station. The elastic parts are directly installed on the inside of the bracket, which can act on the vibration source more directly, reduce the vibration transmission path, thereby improving the vibration reduction efficiency and reducing the impact of vibration on the phase-shifting bearing seat.

[0008] Furthermore, the bracket includes a first bracket and a second bracket, the first bracket and the second bracket are located at two ends of the vibration reduction device of the phase modulator bearing seat, and the elastic member is installed between the first bracket and the second bracket.

[0009] The split bracket design enables the device to more flexibly adapt to phase shifter bearing seats of different sizes and shapes, and is easy to adjust and install according to different models of phase shifters. The first bracket and the second bracket can be adjusted independently, which means that customized vibration reduction configurations can be made for specific vibration modes to achieve the best vibration reduction effect. The split design simplifies the installation process and facilitates on-site installation and later maintenance. In particular, when the elastic parts need to be replaced or adjusted, only part of the bracket can be removed, reducing the complexity and time of the overall disassembly and assembly. By installing elastic parts at both ends, the load of the counterweight plate can be more evenly distributed, avoiding local overload, thereby improving the stability and durability of the overall structure. The elastic part is located between the first bracket and the second bracket, and can directly act on the counterweight plate, effectively absorbing and dispersing vibration energy, improving vibration reduction efficiency, and reducing the vibration amplitude of the phase shifter during operation.

[0010] Further, the elastic member includes a fixing interface, a mounting interface, a bearing surface in the horizontal direction and a mounting surface in the vertical direction, the fixing interface is located on the bearing surface, and the fixing interface is connected to the counterweight plate through the fastener;

[0011] The mounting interface is located on the connecting surface, and the mounting interface is used to connect the bracket.

[0012] The fixing interface is located on the bearing surface of the elastic member and is connected to the fastener, which ensures the stability of the counterweight plate in the horizontal direction and prevents lateral displacement during vibration, thereby improving the structural stability of the overall device. The installation interface is located on the connecting surface of the elastic member and is used to connect with the bracket. Such a design makes the installation and removal of the elastic member easier and facilitates rapid installation and subsequent maintenance on site. By placing the fixing interface and the installation interface on the bearing surface and the connecting surface respectively, the stress generated during the vibration process can be reasonably distributed and guided to avoid stress concentration and extend the service life of the elastic member. The independent design of the fixing interface and the installation interface enables the elastic member to function independently in the vertical and horizontal directions, more effectively absorb vibrations from different directions, and improve the vibration reduction efficiency. This layout method makes full use of the space of the elastic member and avoids unnecessary volume waste, making the vibration reduction device more compact as a whole and suitable for installation in a space-constrained environment. The independent design of the fixing interface and the installation interface enables the elastic member to adapt to different installation requirements, providing flexible solutions for both the installation of new equipment and the modification of existing equipment.

[0013] Furthermore, the bracket is provided with a positioning hole and an elastic member installation hole, and a plurality of positioning holes are provided at the bottom of the bracket;

[0014] A plurality of elastic member installation openings are provided on the upper portion of the bracket, and the elastic member installation openings are matched with the installation interface;

[0015] The mounting opening is connected to the elastic member by bolts;

[0016] The positioning port is connected to the phase regulator bearing seat by bolts.

[0017] Multiple locating ports are distributed at the bottom of the bracket, which are tightly connected to the phase modulator bearing seat by bolts, ensuring the precise alignment and stable installation of the bracket and reducing additional vibration caused by improper installation. The elastic part installation port matches the elastic part installation interface, and is connected by bolts, which simplifies the assembly process of the elastic part, making installation and maintenance more convenient. At the same time, it ensures the accurate positioning of the elastic part and exerts the best vibration reduction effect. The layout of the locating ports and the elastic part installation ports, as well as the matching bolt connections, jointly strengthen the structural strength of the bracket, increase the stability of the overall device, and help maintain the integrity of the device when subjected to high-frequency vibrations. This design supports modular assembly, that is, the elastic part can be replaced independently of the bracket, which facilitates later maintenance and upgrades and reduces maintenance costs and downtime.

[0018] Furthermore, the elastic member is a metal spring, TPE, rubber, metal rubber or steel wire rope.

[0019] Furthermore, the counterweight plate is in the shape of a plate or a block.

[0020] The beneficial effects of the utility model are:

[0021] 1. The tuned mass damper of the utility model is mainly composed of elastic parts and counterweight plates, which can effectively absorb and transform the vibration energy generated during the operation of the phase condenser, significantly reduce the vibration amplitude of the bearing seat, thereby protecting the structural integrity of the phase condenser and extending its service life. By reducing vibration, the device helps to maintain the overall stability of the phase condenser system, avoid electrical performance degradation or equipment damage caused by excessive vibration, and ensure the continuity and reliability of the power system operation;

[0022] 2. The counterweight plate can be set to plate or block shape according to the needs. The number of plate-shaped counterweight plates can be increased or decreased according to the needs to adapt to the vibration reduction requirements of the tunable camera bearing seat. The block-shaped counterweight plate is assembled in one time and is easy to install;

[0023] 3. The phase regulator bearing seat is connected through the bracket, and multiple phase regulator bearing seat vibration reduction devices can be set on the phase regulator bearing seat according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0025] Figure 2 It is a schematic diagram of the structure of the bracket of the embodiment of the utility model.

[0026] Figure 3 It is a structural schematic diagram of a tuned mass damper in an embodiment of the utility model.

[0027] Figure 4 It is a structural schematic diagram of the elastic member of an embodiment of the utility model.

[0028] Figure 5 It is a schematic diagram of a counterweight plate according to an embodiment of the utility model.

[0029] Figure 6 It is a schematic diagram of an installation example of an embodiment of the utility model.

[0030] Among them, 1-bracket; 11-first bracket; 12-second bracket; 13-positioning port; 14-installation port; 15-connecting lock; 2-tuned mass damper; 21-elastic member; 211-bearing surface; 2111-fixing interface; 212-connecting surface; 2121-installation interface; 22-counterweight plate; 23-fastener; 3-phase modulator bearing seat. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0032] In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not indicate the importance of the components, and therefore cannot be understood as a limitation on the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the scope of protection of the present invention.

[0033] Reference Figure 1 , Figure 2 and Figure 5 It can be seen that the vibration reduction device of the phase shifter bearing seat includes a bracket 1, an elastic member 21, a counterweight plate 22 and a fastener 23, wherein the bracket 1 is a split structure, including a first bracket 11 and a second bracket 12, a counterweight plate 22 is installed between the first bracket 11 and the second bracket 12, an elastic member 21 is installed between the counterweight plate 22 and the bracket 1, the elastic member 21 is connected to the bracket 1 through a connecting surface 212, and is connected to the counterweight plate 22 through a bearing surface 211, the bracket 1 is connected to the connecting surface 212 of the elastic member 21 through an installation port, the bracket 1 is installed on the phase shifter bearing seat 3 through a positioning port 13, the installation port 14 is located at the upper part of the bracket 1, and the positioning port 13 is located at the lower part of the bracket 1.

[0034] In one embodiment, the bracket 1 may also be an integrated structure (not shown in the figure), and mounting openings 14 and positioning openings 13 are also provided on both sides of the bracket 1. The installation of the elastic member 21 and the counterweight plate 22 is consistent with the installation method of the split first bracket 11 and the second bracket 12;

[0035] During installation, align the first bracket 11 and the second bracket 12 with the predetermined position on the phase shifter bearing seat 3, and preliminarily fix them through the positioning hole 13 to ensure that the horizontal and vertical directions of the bracket 1 are correct. Align the connection surface 212 of the elastic member 21 with the installation hole 14 on the bracket 1, and use bolts to fix the elastic member 21 on the bracket 1. Ensure that the connection surface 212 is completely in contact with the installation hole 14, place the counterweight plate 22 between the first bracket 11 and the second bracket 12, and ensure that the counterweight plate 22 is in good contact with the bearing surface 211 of the elastic member 21. The weight of the counterweight plate 22 can be related to the plate shape according to the vibration characteristics of the phase shifter. At this time, multiple counterweight plates 22 can be stacked and set as needed, or they can be set in a block shape for overall installation. Use fasteners 23 to fix the counterweight plate 22 on the bracket 1 to ensure that the connection between the counterweight plate 22 and the bracket 1 is stable to avoid additional vibration during operation.

[0036] Reference Figure 3It can be seen that the tuned mass damper 2 includes elastic members 21 located at both ends and a counterweight plate 22 located between the elastic members 21 , and the counterweight plate 22 and the elastic members 21 are connected by a fastener 23 .

[0037] In one embodiment, two elastic members 21 are provided, which are located at both ends of the tuned mass damper 2. A counterweight plate 22 is provided between the elastic members 21. The counterweight plate 22 is connected to the elastic member 21 through a fastener 23. A plurality of holes are provided on the counterweight plate 22 for connecting the fastener 23. The fastener 23 connects the counterweight plate 22 and the elastic member 21 together through the holes on the counterweight plate 22.

[0038] In actual use, when the phase condenser bearing seat 3 vibrates at a specific frequency, the counterweight plate 22 of the tuned mass damper 2 will also begin to vibrate. Ideally, the natural frequency of the tuned mass damper 2 is tuned to match a certain resonant frequency of the phase condenser bearing seat 3, so that when the phase condenser bearing seat 3 vibrates, the tuned mass damper 2 will oscillate at the same frequency. When the vibration frequencies of the tuned mass damper 2 and the phase condenser bearing seat 3 are consistent, energy exchange will occur between the two. The vibration of the tuned mass damper 2 will absorb part of the vibration energy from the phase condenser bearing seat 3, and dissipate it by converting it into heat energy through the friction and viscous damping effect inside the tuned mass damper 2, thereby reducing the vibration amplitude of the phase condenser bearing seat 3. The elastic member 21 connects the counterweight plate 22 and the bracket 1 to provide a restoring force for the counterweight plate 22. When the counterweight plate 22 vibrates, the deformation of the elastic member 21 stores the vibration energy, and then releases the energy when the counterweight plate 22 moves in the opposite direction, forming a vibration cycle. The stiffness of the elastic member 21 determines the natural frequency of the tuned mass damper 2. By adjusting the stiffness of the elastic member 21, the tuning frequency of the tuned mass damper 2 can be changed to match the vibration frequency of the phase condenser bearing seat 3, thereby reducing the vibration of the phase condenser bearing seat 3.

[0039] Reference Figure 4 It can be seen that the elastic member 21 includes a bearing surface 211 and a connecting surface 212. The bearing surface 211 is provided with a fixing interface 211, and the connecting surface 212 is provided with a mounting interface 2121. The shape and material of the elastic member 21 can be various. Its main function is to have elasticity and vibration damping. It can be in the form of a metal spring, TPE, rubber, metal rubber, steel wire rope, etc. to achieve elastic deformation within a certain deformation amount. The elasticity of the elastic member 21 can be in a single direction or in multiple directions.

[0040] Reference Figure 6It can be known that one or more phase condenser bearing seat vibration reduction devices can be arranged on the phase condenser bearing seat 3, and the arrangement position can be on the phase condenser bearing seat 3 body or its auxiliary structure. The phase condenser bearing seat vibration reduction device can be fixed by bolts or fixed on the phase condenser bearing seat 3 by welding. In addition, the phase condenser bearing seat vibration reduction device can also be fixed on the phase condenser bearing seat 3 by connecting lock buckle 15;

[0041] When the bracket 1 is fixed to the phase modulator bearing seat 3, it can be fixed at the side or at the front.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A phase condenser bearing seat vibration reduction device, used to reduce the vibration of the phase condenser bearing seat, characterized in that: It includes a bracket and a tuned mass damper; the bracket is installed on the phase condenser bearing seat; the tuned mass damper is used for tuning energy absorption to reduce the vibration amplitude of the phase condenser bearing seat, and the tuned mass damper includes an elastic member, a fastener and a counterweight plate, the elastic member is installed on the inner side of the bracket, and the counterweight plate is installed on the elastic member through the fastener.

2. The phase modulator bearing seat vibration reduction device according to claim 1, characterized in that: The bracket is an integrated structure, and the elastic member is installed inside the bracket.

3. The phase modulator bearing seat vibration reduction device according to claim 1, characterized in that: The bracket includes a first bracket and a second bracket, the first bracket and the second bracket are located at two ends of the vibration reduction device of the phase modulator bearing seat, and the elastic member is installed between the first bracket and the second bracket.

4. The phase modulator bearing seat vibration reduction device according to any one of claims 1 to 3, characterized in that: The elastic member includes a fixing interface, a mounting interface, a bearing surface in the horizontal direction, and a mounting surface in the vertical direction, wherein the fixing interface is located on the bearing surface, and the fixing interface is connected to the counterweight plate through the fastener; The mounting interface is located on the connecting surface, and the mounting interface is used to connect the bracket.

5. The phase modulator bearing seat vibration reduction device according to claim 1, characterized in that: The bracket is provided with a positioning hole and an elastic member installation hole, and a plurality of positioning holes are provided at the bottom of the bracket; The elastic member installation openings are provided in plurality and are arranged on the upper part of the bracket, and the elastic member installation openings are matched with the installation interface; The mounting opening is connected to the elastic member by bolts; The positioning port is connected to the phase regulator bearing seat by bolts.

6. The phase modulator bearing seat vibration reduction device according to claim 1 or 4, characterized in that: The elastic member is a metal spring, TPE, rubber, metal rubber or steel wire rope.

7. The phase modulator bearing seat vibration reduction device according to claim 1, characterized in that: The counterweight plate is in the shape of a plate or a block.

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