Electric reactor core column in-place device
Through the design of the core column of the electrical antifiers, the combination of fixed pads, connecting screws and semi -ring blocks is used to solve the problem of eccentricity during the core column assembly process and achieve a more efficient and accurate assembly process.
Patent Information
- Application Number
- CN202421162562.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-05-27
AI Technical Summary
During the assembly process of reactor core columns, due to the strict fitting requirements of the core column holes and the upper and lower iron yoke holes and the inertia of the core columns themselves, the core columns are easily eccentric, resulting in assembly failure.
Design a reactor core column positioning device, including a fixed pad, a connecting screw and a semi-annular pad. By adjusting the distance between the connecting screw and the semi-annular pad, an inner circular structure is formed to limit the core column and avoid eccentricity.
It effectively avoids core column eccentricity, improves the efficiency and accuracy of core column assembly, reduces the requirements for operating skills, and the device structure is reasonable and the process is easy to implement.
Smart Images
Figure CN222394686U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of reactors, and in particular relates to a reactor core column positioning device. Background Art
[0002] As an important power equipment in the power transmission line of the power system, the iron core shunt reactor mainly plays the role of improving the line voltage distribution, compensating the charging power, and eliminating the self-excitation of the generator. The core column is the core component of the iron core reactor product, and the assembly quality of the core column is directly related to the performance indicators of the product.
[0003] The reactor core column is composed of an iron core cake and an air gap pad. In view of the inherent vibration characteristics of the reactor, in order to reduce the noise during the operation of the reactor, the reactor core column often adopts a tension rod clamping structure. A core column hole for the compression screw is reserved in the middle of the core column, and the upper and lower iron yokes of the reactor have corresponding upper and lower iron yoke holes for the compression screw. During the production and manufacturing process of the reactor, the assembly of the core column often requires the cooperation of multiple people. Since the core column hole and the upper and lower iron yoke holes need to be strictly fitted, and the core column is affected by the inertia caused by its own weight, it will slip during the fitting process with the lower iron yoke, causing the core column to be eccentric, which in turn leads to the failure of the reactor core column assembly. Utility Model Content
[0004] In view of the above technical problems, the utility model provides a reactor core column positioning device, and the technical solution adopted by the utility model is as follows:
[0005] A reactor core column positioning device comprises a fixed pad, a connecting screw and a semi-annular pad, wherein a first thread hole is opened at the center of the fixed pad, the first thread hole is a through hole, the inner diameter of the semi-annular pad matches the outer diameter of the core column, a cylindrical protrusion is processed at the center of the outer surface of the semi-annular pad, a second thread hole is opened at the center of the cylindrical protrusion, and both ends of the connecting screw are reversed inverted threads, and the two ends of the connecting screw are respectively threadedly connected to the first thread hole and the second thread hole.
[0006] Preferably, adjusting nuts are mounted on both ends of the connecting screw.
[0007] Preferably, the fixed pad block is a rectangular parallelepiped structure, and the material of the fixed pad block is laminated wood.
[0008] Preferably, the inner diameter of the semi-annular gasket is the outer diameter of the core column plus 4 mm.
[0009] Preferably, the semi-annular spacer is made of laminated wood.
[0010] Beneficial effects of the utility model:
[0011] During the assembly of the core column, a pair of positioning devices are installed on the upper surface of the lower iron yoke in advance. According to the distance between the two ends of the core column and the lower iron yoke, the connecting screw is rotated to adjust the spacing between the fixed pad and the semi-circular pad, and finally a pair of semi-circular pads form an inner circle structure to ensure that the spacing between the fixed pad and the semi-circular pad on both sides is consistent. During the placement of the core column, the inner circle structure can effectively limit the core column and effectively avoid the eccentricity of the core column. At the same time, the device does not require high operating skills of personnel, and can be quickly learned and used, which greatly improves the assembly efficiency of the core column. The structural design of the positioning device is reasonable, the manufacturing process is easy to implement, and it has the value of promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the positioning device of an embodiment of the utility model;
[0014] Figure 2 It is a front view of the use state of the positioning device of the embodiment of the utility model;
[0015] Figure 3 A top view of the positioning device of an embodiment of the utility model in use;
[0016] Among them, 1. lower iron yoke, 2. clamp, 3. fixed pad, 4. connecting screw, 5. core column, 6. adjusting nut, 7. semi-annular pad. DETAILED DESCRIPTION
[0017] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.
[0018] like Figure 1 As shown, a reactor core column positioning device includes: a fixed pad 3, a connecting screw 4, an adjusting nut 6 and a semi-annular pad 7. The fixed pad 3 is a rectangular parallelepiped structure, and a first thread hole is opened in the middle of the fixed pad 3. The first thread hole is a through hole with a size of M20; the fixed pad 3 is made of laminated wood with a thickness of 50 mm. Laminated wood has good strength. Considering strength and economy, it is more reasonable to select a thickness of 50 mm for the fixed pad 3.
[0019] The inner diameter of the semi-annular pad 7 needs to match the outer diameter of the core column 5. The inner diameter of the semi-annular pad 7 is generally selected as the outer diameter of the core column 5 plus 4mm. The semi-annular pad 7 is made of laminated wood, and the width is generally selected as 30mm and the thickness is 50mm. The thickness and width of the semi-annular pad 7 take into account both strength and economy.
[0020] A cylindrical protrusion is processed in the middle of the outer surface of the semi-annular gasket 7, and the height of the cylindrical protrusion is 50mm. A second wire hole is opened inside the cylindrical protrusion, and the size of the second wire hole is M20. The length of the second wire hole is the same as the height of the cylindrical protrusion. The height of the cylindrical protrusion takes into account both strength and economy.
[0021] The connecting screw 4 is used to connect the fixed pad 3 and the semi-circular pad 7 into one body. The two ends of the connecting screw 4 are respectively threadedly connected to the first thread hole and the second thread hole. The connecting screw 4 is an M20 full thread rod. The length of the connecting screw 4 needs to be configured according to the distance between the outer diameter side of the core column 5 and the two ends of the lower iron yoke 1. During the process of the core column 5 being in place, the M20 full thread rod can be self-adjusted according to the distance between the semi-circular pad 7 and the core column 5. The two ends of the connecting screw 4 are equipped with M20 specification adjustment nuts 6. The two ends of the connecting screw 4 are reversed reverse threads, that is, the distance between the fixed pad 3 and the semi-circular pad 7 can be adjusted when the connecting screw 4 is rotated. After the spacing between the fixed pad 3 and the semi-circular pad 7 is adjusted to the right position and the end faces of the two opposite semi-circular pads 7 contact to form an inner circle, tighten the adjustment nut 6 to play a locking role.
[0022] like Figure 2 , 3 As shown, the operation steps of using the reactor core column positioning device to realize the core column 5 positioning are as follows:
[0023] 1. According to the distance between the outer diameter side of the core column 5 and the end face of the lower iron yoke 1, the length of the connecting screw 4 is determined; according to the outer diameter of the core column 5, the inner diameter of the semi-annular spacer 7 is determined, and then the outer diameter of the semi-annular spacer 7 is determined; the lower iron yoke 1 and the clamp 2 are both inherent components of the reactor;
[0024] 2. Prepare two sets of core column positioning devices, each set of core column positioning devices includes a fixed pad 3, a semi-annular pad 7, a connecting screw 4 and two adjusting nuts 6;
[0025] 3. Assemble the two adjusting nuts 6 on the connecting screw 4 in advance, and then assemble the two ends of the connecting screw 4 with the semi-annular pad 7 and the fixed pad 3 respectively; place the entire positioning device against the inner side surfaces of the two ends of the lower iron yoke 1;
[0026] 4. Adjust the connecting screws 4 on both sides simultaneously until the end faces of the two semi-annular gaskets 7 contact to form an inner circle, measure the length of the exposed parts of the connecting screws 4 on both sides, and ensure that the lengths of the exposed parts of the connecting screws 4 on both sides are consistent, thereby achieving that the inner circle formed by the semi-annular gasket 7 is concentric with the circular hole on the lower end face of the lower iron yoke 1;
[0027] 5. Slowly drop the stem 5 until it falls into the inner circle formed by a pair of semi-circular pads 7 to complete the assembly of the stem 5. After the assembly of the stem 5 is completed, remove the positioning device. The eccentric size of the assembled stem 5 is less than 2 mm, which meets the production requirements.
[0028] In the embodiments of the utility model, the technical features not described in detail are all existing technologies or conventional technical means and will not be described in detail here.
[0029] Finally, it should be noted that the above embodiments are only specific implementation methods of the present utility model, which are used to illustrate the technical solution of the present utility model, rather than to limit it, and the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any technician familiar with the technical field can modify the technical solution recorded in the above embodiments within the technical scope disclosed by the present utility model, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the present utility model, and should be covered within the protection scope of the present utility model.
Claims
1. Reactor core column positioning device, characterized in that: It includes a fixed pad, a connecting screw and a semi-annular pad. A first thread hole is opened at the center of the fixed pad, and the first thread hole is a through hole. The inner diameter of the semi-annular pad matches the outer diameter of the core column. A cylindrical protrusion is processed at the center of the outer surface of the semi-annular pad, and a second thread hole is opened at the center of the cylindrical protrusion. The two ends of the connecting screw are reversed inverted threads, and the two ends of the connecting screw are threadedly connected to the first thread hole and the second thread hole respectively.
2. The reactor core column positioning device according to claim 1, characterized in that: Adjusting nuts are mounted on both ends of the connecting screw.
3. The reactor core column positioning device according to claim 1 or 2, characterized in that: The fixed pad is a rectangular parallelepiped structure, and the material of the fixed pad is laminated wood.
4. The reactor core column positioning device according to claim 1 or 2, characterized in that: The inner diameter of the semi-annular spacer is equal to the outer diameter of the core column plus 4 mm.
5. The reactor core column positioning device according to claim 4, characterized in that: The semi-annular spacer is made of laminated wood.