Triangular iron yoke adjustable hoisting mechanism for electric reactor and iron yoke
By designing an adjustable lifting mechanism suitable for triangular iron yokes, the problems of inflexible and high cost of triangular iron yoke lifting in the prior art are solved, and efficient and flexible iron yoke lifting and reducing production costs are achieved.
Patent Information
- Application Number
- CN202411891403.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-03-21
AI Technical Summary
In the prior art, the special shape of the triangular iron yoke causes the existing conventional spreaders to be inflexible and have low efficiency, and it is necessary to equip iron yokes of different sizes to be equipped with corresponding spreaders, which increases production costs.
An adjustable lifting mechanism for triangular iron yoke for reactors is designed, including suspending plates, booms, support rods, hanging frames, control devices and drive devices. Through the coordinated work of these components, the position of the hook can be flexibly adjusted to meet the lifting needs of triangular iron yokes of different shapes and sizes.
It improves the flexibility and adaptability of lifting, ensures the smooth and safe lifting of the triangular iron yoke, reduces production costs, and improves lifting efficiency.
Smart Images
Figure CN119660538A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of transformer installation, and in particular relates to an adjustable lifting mechanism and an iron yoke of a triangular iron yoke for a reactor. Background Art
[0002] With the rapid development of my country's power industry, the continuous improvement of power grid installed capacity and voltage level, how to ensure and improve the safety, reliability and economy of the power grid has become a common concern of manufacturing companies and power operation departments. In order to enable the power system to operate stably and safely, it is necessary to configure reactive power compensation devices in the power system to improve the power factor of the system and load, reduce equipment capacity and reduce power loss, etc. The high-voltage parallel reactor is used as a reactive power compensation device in the power system, which has the functions of compensating the capacitance current of long-distance transmission lines, limiting overvoltage, protecting electrical equipment and reducing line active power loss, etc. to stabilize and protect the power system. The parallel reactor is an important equipment in the ultra-high (ultra-high) voltage long-distance transmission and transformation system. In recent years, with the construction and development of ultra-high (ultra-high) voltage and long-distance power grids, especially the construction of high-voltage transmission lines, the demand for high-voltage parallel reactors is also increasing. Compared with the traditional circular iron yoke reactor, the advantage of the triangular iron yoke of the triangle-shaped reactor is that it effectively reduces the weight of the iron yoke material, effectively reduces the core loss and noise, and avoids local overheating and local noise and vibration problems. However, due to the special shape of the iron yoke of this new type of reactor, the existing conventional lifting equipment is not flexible enough and has low efficiency when lifting. In addition, for each iron yoke of different sizes, a corresponding lifting equipment needs to be equipped, which increases the production cost. Summary of the invention
[0003] The purpose of the present invention is to provide an adjustable lifting mechanism and iron yoke of a triangular iron yoke for a reactor, so as to solve the technical defects in the prior art that due to the special shape of the iron yoke of the new reactor, the existing conventional lifting tools are not flexible enough and have low efficiency when lifting, and each iron yoke of different sizes needs to be equipped with corresponding lifting tools, which increases the production cost.
[0004] In order to achieve the above object, the present invention adopts the following technical solutions: In a first aspect, a triangular iron yoke adjustable lifting mechanism for a reactor is provided, comprising: A hanging plate, the bottom of which is rotatably connected with a plurality of hanging arms; A support rod, one end of which is connected to the hanging plate, and the other end of which is connected to the bottom plate. A driving device is slidably connected to the support rod, and a driving end of the driving device is rotatably connected to the middle part of the hanging arm; A plurality of hangers are provided, and the plurality of hangers are arranged axially and circumferentially along the bottom plate; A hook is connected to the hanger in a rolling manner, and the top of the hook is connected to the bottom of the boom in a rotating manner; A control device, disposed on the bottom plate and electrically connected to the driving device; Wherein, when the triangular iron yoke is lifted, the control device is used to control the driving device so that the hook is displaced along the entire length of the hanger.
[0005] Furthermore, the support rod is axially perpendicular to the hanging plate, and one end of the support rod close to the hanging plate is slidably connected to the hanging plate; The driving device comprises a first driving assembly and a second driving assembly, wherein the first driving assembly is symmetrically arranged on two opposite sides of the support rod and axially coincides with the support rod; The driving end of the first driving assembly is provided with the second driving assembly, and the driving end of the second driving assembly is rotatably connected to the inner side of the boom.
[0006] Furthermore, a connecting plate is provided inside the boom, and the end of the connecting plate is rotatably connected to a connecting shaft, and the end of the connecting shaft is connected to the driving end of the second driving assembly.
[0007] Furthermore, the second driving assembly includes a mounting plate and a hydraulic push rod, the hydraulic push rod is mounted on the mounting plate, and the driving end of the hydraulic push rod is fixedly connected to the connecting shaft.
[0008] Furthermore, the first driving assembly includes a fixed plate and a hydraulic cylinder, and the hydraulic cylinder is connected to the support rod through the fixed plate.
[0009] Furthermore, the hook is a structure with one end open and the other end closed, and a rolling assembly is provided on one side of the open end of the hook, and the rolling assembly cooperates with the hanger.
[0010] Furthermore, one side of the hook that cooperates with the hanger is a hollow structure, and has openings at two opposite ends, and the rolling assembly is arranged in the hollow structure.
[0011] Furthermore, the rolling assembly includes a positioning plate and a roller, and the roller is arranged on the inner top and inner bottom of the hollow structure through the positioning plate; There are two rollers on the inner top, and the two rollers are rollingly connected to the top of the hanger; The number of rollers located at the inner bottom is one, and one roller is rollingly connected to the bottom of the hanger.
[0012] Furthermore, a telescopic rod is provided on the top of the base plate, and the end of the support rod is fixedly connected to the telescopic rod.
[0013] In a second aspect, an iron yoke is provided, comprising an iron yoke body, wherein the iron yoke body is a triangular structure, and the iron yoke body is hoisted by the hoisting mechanism as described above.
[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the multiple booms connected by rotation at the bottom of the hanging plate, and the rotation connection between the hook and the bottom of the boom, the lifting mechanism can be controlled by the control device, and the position of the hook can be flexibly adjusted to meet the lifting requirements of triangular iron yokes of different shapes and sizes, thereby improving the flexibility and adaptability of lifting. Secondly, one end of the support rod is connected to the hanging plate, and the other end is connected to the bottom plate, forming a stable support structure, and multiple hangers are arranged along the axial circumference of the bottom plate, further enhancing the stability of the entire lifting mechanism and ensuring the stability and safety of the triangular iron yoke during the lifting process.
[0015] 2. The support rod is perpendicular to the axial direction of the hanging plate and is slidably connected, so that the hanging plate can slide up and down along the support rod, thereby adjusting the overall clamping size of the lifting mechanism to meet the lifting requirements of triangular iron yokes of different sizes.
[0016] 3. The connecting shaft, as a connecting bridge between the driving end of the second driving assembly and the boom, optimizes the force transmission path. When the second driving assembly is working, the driving force is directly transmitted to the boom through the connecting shaft, realizing efficient force transmission and conversion, so that the hook can be displaced on the hanger, improving the working efficiency of the lifting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.
[0018] Figure 1 A side view of the triangular iron yoke adjustable lifting mechanism for the reactor proposed by the present invention; Figure 2 A schematic diagram of the displacement of the hanging plate in the triangular iron yoke adjustable lifting mechanism for the reactor proposed by the present invention; Figure 3 A top view of the triangular iron yoke adjustable lifting mechanism for the reactor proposed by the present invention; Figure 4 This is a schematic diagram of the installation of the auxiliary plate in the triangular iron yoke adjustable lifting mechanism for the reactor proposed by the present invention; Figure 5 This is a schematic diagram of the operation of the triangular iron yoke adjustable lifting mechanism for the reactor proposed by the present invention; Figure 6 This is a schematic diagram of the matching between the buckle slot and the auxiliary plate in the triangular iron yoke adjustable lifting mechanism for the reactor proposed by the present invention; Among them: 1. hanging plate; 2. first hanging hook; 3. hanging arm; 4. hook; 5. hanger; 6. support rod; 7. second hanging hook; 8. buckle slot; 9. auxiliary plate; 10. beam; 11. hydraulic push rod. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0022] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it 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, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0023] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0024] With the rapid development of my country's power industry, the continuous improvement of power grid installed capacity and voltage level, how to ensure and improve the safety, reliability and economy of the power grid has become a common concern of manufacturing companies and power operation departments. In order to enable the power system to operate stably and safely, it is necessary to configure reactive power compensation devices in the power system to improve the power factor of the system and load, reduce equipment capacity and reduce power loss, etc. The high-voltage parallel reactor is used as a reactive power compensation device in the power system, which has the functions of compensating the capacitance current of long-distance transmission lines, limiting overvoltage, protecting electrical equipment and reducing line active power loss, etc. to stabilize and protect the power system. The parallel reactor is an important equipment in the ultra-high (ultra-high) voltage long-distance transmission and transformation system. In recent years, with the construction and development of ultra-high (ultra-high) voltage and long-distance power grids, especially the construction of high-voltage transmission lines, the demand for high-voltage parallel reactors is also increasing. Compared with the traditional circular iron yoke reactor, the advantage of the triangular iron yoke of the triangle-shaped reactor is that it effectively reduces the weight of the iron yoke material, effectively reduces the core loss and noise, and avoids local overheating and local noise and vibration problems. However, due to the special shape of the iron yoke of this new type of reactor, the existing conventional lifting equipment is not flexible enough and has low efficiency when lifting. In addition, for each iron yoke of different sizes, a corresponding lifting equipment needs to be equipped, which increases the production cost.
[0025] In order to solve the above technical defects, the inventor provides an adjustable lifting mechanism and iron yoke of a triangular iron yoke for a reactor.
[0026] The present invention is further described in detail below in conjunction with the accompanying drawings: like Figure 1-Figure 6As shown, an embodiment of the present invention, in the first aspect, provides an adjustable lifting mechanism of a triangular iron yoke for a reactor, comprising a hanging plate 1, the hanging plate 1 being an annular structure, three first hanging hooks 2 being arranged on the bottom circumference of the hanging plate 1, three second hanging hooks 7 being arranged on the top circumference, one end of a hanging arm 3 being rotatably connected to the first hanging hook 2, and the other end being rotatably connected to the top of a hook 4; a support rod 6, one end of which is connected to the hanging plate 1, and the other end of which is connected to a bottom plate, a driving device being slidably connected to the support rod 6, and a driving end of the driving device being rotatably connected to the middle part of the hanging arm 3; a plurality of hangers 5 being arranged, and the plurality of hangers 5 being arranged circumferentially along the axial direction of the bottom plate; a control device being arranged on the bottom plate and electrically connected to the driving device; wherein, when the triangular iron yoke is lifted, the control device is used to control the driving device so that the hook 4 is displaced along the length direction of the hanger 5. In the above structure, through the multiple booms 3 rotatably connected to the bottom of the hanging plate 1, and the hook 4 rotatably connected to the bottom of the boom 3, the lifting mechanism can flexibly adjust the position of the hook 4 through the control of the control device, so as to adjust the distance between the three booms 3 and the center of the hanging plate 1 to meet the lifting requirements of triangular iron yokes of different shapes and sizes, thereby improving the flexibility and adaptability of lifting. Secondly, one end of the support rod 6 is connected to the hanging plate 1, and the other end is connected to the base plate, forming a stable supporting structure, and the multiple hangers 5 are arranged along the axial circumference of the base plate, which further enhances the stability of the entire lifting mechanism and ensures the stability and safety of the triangular iron yoke during the lifting process. Figure 1 As shown, the support rod 6 is axially perpendicular to the hanging plate 1, and one end of the support rod 6 close to the hanging plate 1 is slidably connected to the hanging plate 1; the driving device includes a first driving component and a second driving component, and the first driving component is symmetrically arranged on the opposite sides of the support rod 6 and axially overlaps with the support rod 6; the driving end of the first driving component is provided with a second driving component, and the driving end of the second driving component is rotatably connected to the inner side of the boom 3. When the lifting mechanism is hoisting the iron yoke, the staff controls the control device through the remote control so that the control device controls the first driving component (not shown in the figure) to drive the second driving component to move, and the second driving component can move toward the bottom direction of the support rod 6 during the displacement process; at the same time, during the downward displacement of the second driving component, the second driving component can also drive the boom 3 to move, and the boom 3 cooperates with the hanger 5 during the movement process, so that the boom 3 can perform linear reciprocating motion in the full length direction of the hanger 5, and finally the distance adjustment between multiple booms 3 is realized.
[0027] like Figure 1 and Figure 2As shown, further, a connecting plate is provided inside the boom 3, and a connecting shaft is rotatably connected to the end of the connecting plate, and the end of the connecting shaft is connected to the driving end of the second driving assembly. During the driving process of the second driving assembly, the connecting shaft is driven to rotate, and during the rotation of the connecting shaft, the boom 3 is driven to move; since the connecting shaft and the boom 3 are rotatably connected, the connecting shaft will abut against the inner wall of the boom 3 during the process of being driven by the second driving assembly, and the driving force transmitted by the second driving assembly will act on the inner wall of the boom 3, so that the boom 3 is displaced. Specifically, the second driving assembly includes a mounting plate and a hydraulic push rod 11, the mounting plate is mounted on the driving end of the first driving assembly, and the hydraulic push rod 11 is transversely mounted on the mounting plate so that the hydraulic push rod 11 and the first driving assembly are axially perpendicular; in order to ensure the reliability of the connection, the driving end of the hydraulic push rod 11 is fixedly connected to the connecting shaft.
[0028] In this scheme, if Figure 1 As shown, the first driving assembly includes a fixed plate and a hydraulic cylinder. The hydraulic cylinder is connected to the support rod 6 through the fixed plate. The middle part of the support rod 6 is a hollow structure. The hydraulic cylinder is installed inside the hollow structure through the fixed plate, so that the hydraulic cylinder is located inside the support rod 6 as a whole.
[0029] like Figure 1-Figure 3As shown, the hook 4 is a structure with one end open and the other end blocked. A rolling assembly is provided on one side of the open end of the hook 4, and the rolling assembly cooperates with the hanger 5. The rolling cooperation can improve the smoothness of the displacement of the hook 4 on the hanger 5 and avoid the friction caused by the sliding connection. When the iron yoke is clamped and lifted, the open end of the hook 4 can be abutted against the outer side of the iron yoke so that the hook 4 can firmly clamp the iron yoke. Specifically, the side where the hook 4 cooperates with the hanger 5 is a hollow structure, and the opposite two ends have openings. The rolling assembly is arranged in the hollow structure. The arrangement of the rolling assembly makes the relative movement between the hook 4 and the hanger 5 change from sliding friction to rolling friction. Since the resistance of rolling friction is much smaller than that of sliding friction, this design can significantly reduce the friction resistance between the two, thereby reducing wear and extending the service life of the hook 4 and the hanger 5. At the same time, reducing friction also means reducing the heat and wear particles generated by friction, which have a protective effect on the materials of the hook 4 and the hanger 5, and further extend the service life of the components. In addition, due to the small resistance of rolling friction, the resistance that the crane needs to overcome during the hoisting process is also reduced accordingly, thereby reducing energy consumption and improving hoisting efficiency. Finally, the setting of the rolling assembly makes the connection between the hook 4 and the hanger 5 more flexible and the response speed faster. The rolling assembly includes a positioning plate and a roller, and the roller is arranged at the inner top and the inner bottom of the hollow structure through the positioning plate; wherein, the number of rollers located on the inner top is two, and the two rollers are rollingly connected to the top of the hanger 5; the number of rollers located at the inner bottom is one, and one roller is rollingly connected to the bottom of the hanger 5. Two rollers are arranged at the inner top, which jointly bear the upper load between the hook 4 and the hanger 5, which helps to distribute the stress more evenly and prevent damage caused by single-point overload; and a roller is arranged at the inner bottom, which can stably support the lower load between the hook 4 and the hanger 5, while maintaining sufficient flexibility to adapt to changes in different hoisting angles and positions. At the same time, the combination of the top double rollers and the bottom single roller forms a stable triangular support structure, which improves the stability of the entire hoisting system, especially when subjected to lateral forces or unbalanced loads. like Figure 1 As shown, a telescopic rod is provided on the top of the base plate, and the end of the support rod 6 is fixedly connected to the telescopic rod. When the boom 3 pulls the hook 4 to move, it also drives the hanging plate 1 to move downward. In order to improve the smoothness of the hanging plate 1 sliding downward, a telescopic rod is installed on the base plate so that the support rod 6 is fixedly connected to the telescopic rod. When the friction force of the hanging plate 1 moving downward is large, force can be applied to the support rod 6, and the support rod 6 can move downward through the cooperation of the telescopic rod. During this movement, the distance between the hanging plate 1 and the outside of the support rod 6 can be slightly adjusted, and the friction can be removed at the same time.
[0030] In this solution, it is worth noting that the three second lifting hooks 7 are used to connect to an external crane, two auxiliary plates 9 and three beams 10 are provided on the hanger 5, and the lower part of the support rod 6 is provided with threads, which can be connected to the auxiliary plates 9 by bolts; when the hooks 4 are adjusted on the beams 10, the distance between the multiple hooks 4 and the center of the hanger 5 is always the same, ensuring the stability during lifting. A threaded seat is provided on the lower surface of the hanging plate 1, and an iron buckle is installed on the threaded seat. A buckle groove 8 is provided at the corresponding position of the hanger 5 and the threaded seat. Before lifting, adjust the threaded seat to fully clamp the buckle groove 8 so that the auxiliary plate 9 and the buckle groove 8 are matched.
[0031] On the second aspect, an embodiment of the present invention provides an iron yoke, including an iron yoke body, the iron yoke body is a triangular structure, and the iron yoke body is lifted by the lifting mechanism as described above. During specific operation, through multiple hanging arms 3 rotatably connected to the bottom of the hanging plate 1, and the hook 4 is rotatably connected to the bottom of the hanging arm 3, the lifting mechanism can be controlled by a control device to flexibly adjust the position of the hook 4 to meet the lifting requirements of triangular iron yokes of different shapes and sizes, thereby improving the flexibility and adaptability of lifting. Secondly, one end of the support rod 6 is connected to the hanging plate 1, and the other end is connected to the base plate, forming a stable supporting structure, and multiple hangers 5 are arranged along the axial circumference of the base plate, which further enhances the stability of the entire lifting mechanism and ensures the stability and safety of the triangular iron yoke during the lifting process.
[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit its protection scope. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that after reading the present invention, those skilled in the art can still make various changes, modifications or equivalent substitutions to the specific implementation methods of the invention, but these changes, modifications or equivalent substitutions are all within the protection scope of the pending claims of the invention.
Claims
1. A triangular iron yoke adjustable lifting mechanism for a reactor, characterized in that: include: A hanging plate (1) having a plurality of hanging arms (3) rotatably connected at the bottom; A support rod (6) is connected to the hanging plate (1) at one end and to the bottom plate at the other end; a driving device is slidably connected to the support rod (6); a driving end of the driving device is rotatably connected to the middle of the hanging arm (3); A plurality of hangers (5) are provided, and the plurality of hangers (5) are arranged axially and circumferentially along the bottom plate; A hook (4) is connected to the hanger (5) in a rolling manner, and the top of the hook (4) is connected to the bottom of the boom (3) in a rotatable manner; A control device, disposed on the bottom plate and electrically connected to the driving device; When the triangular iron yoke is lifted, the control device is used to control the driving device so that the lifting hook (4) is displaced along the entire length of the hanging bracket (5).
2. The triangular iron yoke adjustable lifting mechanism for reactor according to claim 1, characterized in that: The support rod (6) and the hanging plate (1) are axially perpendicular to each other, and one end of the support rod (6) close to the hanging plate (1) is slidably connected to the hanging plate (1); The driving device comprises a first driving assembly and a second driving assembly, wherein the first driving assembly is symmetrically arranged on two opposite sides of the support rod (6) and axially overlaps with the support rod (6); The second driving assembly is provided on the driving end of the first driving assembly, and the driving end of the second driving assembly is rotatably connected to the inner side of the boom (3).
3. The triangular iron yoke adjustable lifting mechanism for a reactor according to claim 2, characterized in that: A connecting plate is provided inside the boom (3), an end of the connecting plate being rotatably connected to a connecting shaft, and an end of the connecting shaft being connected to a driving end of the second driving assembly.
4. The triangular iron yoke adjustable lifting mechanism for reactor according to claim 3, characterized in that: The second drive assembly comprises a mounting plate and a hydraulic push rod (11), wherein the hydraulic push rod (11) is mounted on the mounting plate, and a drive end of the hydraulic push rod (11) is fixedly connected to a connecting shaft.
5. The triangular iron yoke adjustable lifting mechanism for reactor according to claim 2, characterized in that: The first driving assembly comprises a fixed plate and a hydraulic cylinder, and the hydraulic cylinder is connected to the support rod (6) via the fixed plate.
6. The triangular iron yoke adjustable lifting mechanism for reactor according to claim 1, characterized in that: The hook (4) is a structure with one end open and the other end closed, and a rolling assembly is provided on one side of the open end of the hook (4), and the rolling assembly cooperates with the hanger (5).
7. The triangular iron yoke adjustable lifting mechanism for a reactor according to claim 6, characterized in that: The side where the hook (4) cooperates with the hanger (5) is a hollow structure, and has openings at two opposite ends, and the rolling assembly is arranged in the hollow structure.
8. The triangular iron yoke adjustable lifting mechanism for a reactor according to claim 7, characterized in that: The rolling assembly includes a positioning plate and a roller, and the roller is arranged on the inner top and inner bottom of the hollow structure through the positioning plate; There are two rollers located on the inner top, and the two rollers are rollingly connected to the top of the hanger (5); The number of rollers located at the inner bottom is one, and one of the rollers is rollingly connected to the bottom of the hanger (5).
9. The triangular iron yoke adjustable lifting mechanism for a reactor according to claim 1, characterized in that: A telescopic rod is provided on the top of the bottom plate, and the end of the support rod (6) is fixedly connected to the telescopic rod.
10. An iron yoke, comprising an iron yoke body, characterized in that: The iron yoke body is a triangular structure, and the iron yoke body is lifted by the lifting mechanism described in any one of claims 1-9.