Insulating sleeve installation tool for a core
Patent Information
- Application Number
- CN202522311471.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-10-31
AI Technical Summary
[0002]变压器的核心结构由铁心、线圈和绝缘结构三大部分组成；在变压器生产过程中，需要在铁心外侧设置若干层绝缘层，每层绝缘层外侧再缠绕有若干个线圈，以保护内部的铁心；其中由圆筒形的绝缘套筒构成的绝缘层，绝缘套筒具有韧性，现有技术中需要操作人员手工将绝缘套筒向外掰开，套在铁心的外侧后，再用线圈套在绝缘层的外侧，但是在操作时需要人工手动，所需要的力量较大，人手需要直接与绝缘套筒的板壁相接触，同时不容易控制绝缘套筒的展开程度
1.通过设置两个夹持单元，操作人员双手分别握持一个夹持单元的柄部，相向移动两个柄部以使绝缘套筒向外侧打开，绝缘套筒两侧的侧端面之间相互远离，直至绝缘套筒能够套在铁心外侧，将若干线圈上下套在扩展的绝缘套筒外侧，可以实现减少操作人员的工作强度，更容易控制绝缘套筒的扩展程度。
Smart Images
Figure CN224816973U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of transformer manufacturing technology, and more specifically, relates to an insulating sleeve installation tool for iron cores. Background Technology
[0002] The core structure of a transformer consists of three main parts: the iron core, the coils, and the insulation structure. During the transformer manufacturing process, several layers of insulation are installed on the outside of the iron core, and several coils are wound around the outside of each insulation layer to protect the internal iron core. The insulation layer is composed of a cylindrical insulating sleeve. The insulating sleeve is flexible. In the existing technology, the operator needs to manually pry the insulating sleeve outward and put it on the outside of the iron core, and then put the coil on the outside of the insulation layer. However, the operation requires manual operation, which requires a lot of force. The hand needs to be in direct contact with the plate wall of the insulating sleeve, and it is not easy to control the degree of unfolding of the insulating sleeve. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide an insulating sleeve installation tool for iron cores, which can reduce the workload of operators and make it easier to control the degree of unfolding of the insulating sleeve.
[0004] This utility model discloses an insulating sleeve installation tool for iron cores, used to expand the insulating sleeve. The insulating sleeve has a non-closed annular structure with an expansion opening on its side wall. It includes two clamping units. Each clamping unit includes a clamping part, a bending part, and a handle arranged in sequence, connected end to end. The clamping part includes a first clamping plate, a second clamping plate, and a connecting plate. The width of the first clamping plate is greater than the width of the second clamping plate, and the first and second clamping plates are connected to each other by the connecting plate. The second clamping plate is located on the side of the first clamping plate away from the bending part. The first clamping plate, the second clamping plate, and the connecting plate cooperate to form an inwardly recessed clamping groove. The width of the clamping groove is greater than the thickness of the edge of the expansion opening.
[0005] As a further improvement of this utility model, the bending part has an arc-shaped structure, one end of the bending part is fixedly connected to the end face of the first clamping plate away from the connecting plate, and the bending part is connected to the middle part of the first clamping plate; the radius of the bending part is greater than the radius of the expanded insulating sleeve.
[0006] As a further improvement of this utility model, one end of the handle is fixedly connected to the end of the curved portion away from the clamping portion, and the handle has a straight structure that extends toward the side away from the clamping portion.
[0007] As a further improvement of this utility model, it also includes a locking frame unit and a locking block unit; the locking frame unit and the locking block unit are respectively disposed on two different clamping units; when the insulating sleeve is extended, the clamping units on both sides move closer to each other, and the locking frame unit and the locking block unit can be interlocked with each other.
[0008] As a further improvement of this utility model, the lock frame unit includes a locking seat, a lock frame, and a protrusion. The locking seat is fixedly disposed on the outside of the connecting plate of its corresponding clamping part. The locking seat is provided with a first locking groove and a second locking groove, which are spaced apart. A first rotating shaft is fixedly disposed in the first locking groove, and a second rotating shaft is fixedly disposed in the second locking groove. Both ends of the lock frame are rotatably connected to the first rotating shaft and the second rotating shaft, respectively, and the protrusion is fixedly disposed on the inside of the lock frame.
[0009] As a further improvement of this utility model, the locking block unit includes an extension plate and a locking block. The extension plate is fixedly disposed on the outside of the connecting plate of its corresponding clamping part. One side of the extension plate is fixedly connected to the connecting plate, and the locking block is fixedly disposed on the inside of the extension plate. A groove is provided on the upper side of the locking block. The size of the locking block matches the size of the lock frame, and the size of the groove matches the size of the protrusion.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By setting two clamping units, the operator holds the handle of one clamping unit with each hand and moves the two handles in opposite directions to open the insulating sleeve outward. The side end faces of the insulating sleeve move away from each other until the insulating sleeve can be fitted over the outside of the iron core. Several coils are then fitted over the outside of the extended insulating sleeve. This reduces the operator's workload and makes it easier to control the degree of extension of the insulating sleeve.
[0011] 2. By setting up a locking frame unit and a locking block unit, the clamping units on both sides can be connected and fixed to each other after the expansion insulating sleeve is extended. When removing the clamping unit from the insulating sleeve, two clamping units can be removed at the same time, avoiding mutual squeezing and friction between the connecting plates on both sides when removing the clamping unit, thus improving the convenience of removing the clamping unit. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the clamping unit of this utility model; Figure 2 This is a schematic diagram of the operation of the present invention when clamping the insulating sleeve; Figure 3 This is a schematic diagram of the structure of a specific embodiment two of this utility model; Figure 4 This is a schematic diagram of the lock frame unit of this utility model; Figure 5 This is a schematic diagram of the locking block unit of this utility model.
[0013] Explanation of the labels in the diagram: Clamping part 1, first clamping plate 11, second clamping plate 12, connecting plate 13, clamping groove 14, bending part 2, handle part 3, insulating sleeve 4, locking seat 51, first locking groove 52, second locking groove 53, first rotating shaft 54, second rotating shaft 55, locking frame 56, protrusion 57, locking plate 61, locking block 62, groove 63. Detailed Implementation
[0014] Specific Implementation Example 1: Please refer to Figures 1-2 An insulating sleeve installation tool for iron cores includes two clamping units for unfolding the insulating sleeve 4. The insulating sleeve 4 is initially an open cylindrical shape, and its walls can be stretched outwards, possessing a certain degree of elasticity to recover its deformation. Each clamping unit includes a clamping part 1, a bending part 2, and a handle 3 arranged sequentially, with the clamping part 1, bending part 2, and handle 3 connected end-to-end.
[0015] The clamping part 1 includes a first clamping plate 11, a second clamping plate 12, and a connecting plate 13. The first clamping plate 11 and the second clamping plate 12 have the same length, and the width of the first clamping plate 11 is greater than the width of the second clamping plate 12. The first clamping plate 11 and the second clamping plate 12 are connected to each other by the connecting plate 13. The second clamping plate 12 is disposed on the side of the first clamping plate 11 away from the bent part 2. The end face of the first clamping plate 11 is fixedly connected to the upper side of the connecting plate 13, and the end face of the second clamping plate 12 is fixedly connected to the lower side of the connecting plate 13. The first clamping plate 11, the second clamping plate 12, and the connecting plate 13 cooperate to form an inwardly recessed clamping groove 14. The width of the clamping groove 14 is greater than the thickness of the edge of the expansion opening. Preferably, the two clamping parts 1 are symmetrical with respect to the two sides of the insulating sleeve 4 to facilitate the outward opening of the insulating sleeve 4 under force.
[0016] The curved part 2 has an arc-shaped structure. One end of the curved part 2 is fixedly connected to the end face of the first clamping plate 11 away from the connecting plate 13, and the curved part 2 is connected to the middle part of the first clamping plate 11. The radius of the curved part 2 is larger than the radius of the insulating sleeve 4 after it is opened outward.
[0017] One end of the handle 3 is fixedly connected to the end of the curved part 2 away from the clamping part 1. The handle 3 has a straight structure and extends toward the side away from the clamping part 1.
[0018] Working principle: Two clamping units are respectively fitted onto the expansion opening of the insulating sleeve 4. The side end face of the insulating sleeve 4 is inserted into the clamping groove 14. The operator holds the handle 3 of one clamping unit with both hands and moves the two handles 3 towards each other to open the insulating sleeve 4 outward. The side end faces on both sides of the insulating sleeve 4 move away from each other to expand the size of the insulating sleeve 4 until the insulating sleeve 4 can be fitted onto the outside of the iron core. Several coils are then fitted onto the outside of the bent insulating sleeve 4. This can reduce the workload of the operator and make it easier to control the expansion degree of the insulating sleeve.
[0019] Specific Implementation Example 2: Please refer to Figures 3-5 An insulating sleeve installation tool for iron core is similar to that in Specific Embodiment 1, which will not be repeated here. The difference is that it also includes a locking frame unit and a locking block unit; the locking frame unit and the locking block unit are respectively set on two different clamping units.
[0020] After the insulating sleeve 4 is placed on the outside of the iron core, the operator needs to remove the clamping unit from the insulating sleeve 4. At this time, the two end faces of the insulating sleeve 4 tend to move closer together due to the elastic force, so that the outer surfaces of the connecting plates 13 of the clamping part 1 abut against each other. When removing the clamping unit, it needs to be removed one by one. When lifting one clamping unit upward, due to the abutment of the clamping unit on the other side, the connecting plates 13 on both sides will rub against each other, making it difficult to remove the clamping unit.
[0021] The locking frame unit includes a locking seat 51, a locking frame 56, and a protrusion 57. The locking seat 51 is fixedly disposed on the outside of the connecting plate 13 of its corresponding clamping part 1. The locking seat 51 has a first locking groove 52 and a second locking groove 53, which are spaced apart. A first rotating shaft 54 is fixedly disposed in the first locking groove 52, and a second rotating shaft 55 is fixedly disposed in the second locking groove 53. The two ends of the locking frame 56 are rotatably connected to the first rotating shaft 54 and the second rotating shaft 55, respectively, and the protrusion 57 is fixedly disposed on the inner side of the locking frame 56.
[0022] The locking block unit includes an extension plate 61 and a locking block 62. The extension plate 61 is fixedly disposed on the outside of the connecting plate 13 of its corresponding clamping part 1. One side of the extension plate 61 is fixedly connected to the connecting plate 13. The locking block 62 is fixedly disposed on the inside of the extension plate 61. A groove 63 is provided on the upper side of the locking block 62. The size of the locking block 62 matches the size of the lock frame 56, and the size of the groove 63 matches the size of the protrusion 57.
[0023] Working principle: After the insulating sleeve 4 is fitted onto the outside of the iron core, the clamping parts 1 on both sides approach each other, the extension plate 61 abuts against the locking seat 51, the locking frame 56 is rotated to the side of the locking block 62, the inner wall of the locking frame 56 abuts against the outer side of the locking block 62, and the protrusion 57 is embedded in the groove 63 so that the clamping units on both sides are locked together as one unit. When the clamping unit is taken out of the insulating sleeve, two clamping units can be taken out at the same time, avoiding the mutual squeezing and friction of the connecting plates on both sides when the clamping unit is taken out, thus improving the convenience of taking out the clamping unit.
Claims
1. A tool for installing an insulating sleeve for an iron core, used to expand an insulating sleeve (4), the insulating sleeve (4) having a non-closed annular structure and an expansion opening on its side wall; characterized in that: It includes two clamping units; the clamping unit includes a clamping part (1), a bending part (2) and a handle (3) arranged in sequence, the clamping part (1), the bending part (2) and the handle (3) are connected end to end in sequence; the clamping part (1) includes a first clamping plate (11), a second clamping plate (12) and a connecting plate (13), the width of the first clamping plate (11) is greater than the width of the second clamping plate (12), the first clamping plate (11) and the second clamping plate (12) are connected to each other through the connecting plate (13); the second clamping plate (12) is disposed on the side of the first clamping plate (11) away from the bending part (2), the first clamping plate (11), the second clamping plate (12) and the connecting plate (13) cooperate to form an inwardly recessed clamping groove (14); the width of the clamping groove (14) is greater than the thickness of the edge of the expansion opening.
2. The insulating sleeve installation tool for iron core according to claim 1, characterized in that: The bending part (2) is an arc-shaped structure. One end of the bending part (2) is fixedly connected to the end face of the first clamping plate (11) away from the connecting plate (13). The bending part (2) is connected to the middle part of the first clamping plate (11). The radius of the bending part (2) is greater than the radius of the expanded insulating sleeve (4).
3. The insulating sleeve installation tool for iron core according to claim 1, characterized in that: One end of the handle (3) is fixedly connected to the end of the curved part (2) away from the clamping part (1). The handle (3) is a straight structure and extends toward the side away from the clamping part (1).
4. The insulating sleeve installation tool for iron core according to claim 1, characterized in that: It also includes a locking frame unit and a locking block unit; the locking frame unit and the locking block unit are respectively set on two different clamping units; when the insulating sleeve (4) is extended, the clamping units on both sides approach each other, and the locking frame unit and the locking block unit can be interlocked with each other.
5. The insulating sleeve installation tool for iron core according to claim 4, characterized in that: The locking frame unit includes a locking seat (51), a locking frame (56), and a protrusion (57). The locking seat (51) is fixedly disposed on the outside of the connecting plate (13) of its corresponding clamping part (1). A first locking groove (52) and a second locking groove (53) are provided on the locking seat (51), and the first locking groove (52) and the second locking groove (53) are spaced apart. A first rotating shaft (54) is fixedly disposed in the first locking groove (52), and a second rotating shaft (55) is fixedly disposed in the second locking groove (53). The two ends of the locking frame (56) are rotatably connected to the first rotating shaft (54) and the second rotating shaft (55) respectively, and the protrusion (57) is fixedly disposed on the inside of the locking frame (56).
6. The insulating sleeve installation tool for iron core according to claim 5, characterized in that: The locking block unit includes an extension plate (61) and a locking block (62). The extension plate (61) is fixedly disposed on the outside of the connecting plate (13) of its corresponding clamping part (1). One side of the extension plate (61) is fixedly connected to the connecting plate (13). The locking block (62) is fixedly disposed on the inside of the extension plate (61). A groove (63) is provided on the upper side of the locking block (62). The size of the locking block (62) matches the size of the lock frame (56), and the size of the groove (63) matches the size of the protrusion (57).