Novel dry-type transformer coil draft frame structure

Abstract

The utility model belongs to the technical field of dry-type transformer coil draft, and particularly relates to a novel dry-type transformer coil draft frame structure which comprises a bottom plate, a bolt is movably connected in the bottom plate, the bolt is in threaded connection with the ground, and a sliding groove is formed in the surface of the bottom plate. Through the arrangement of the bottom plate, the height adjusting stand column, the pin shaft and other structures, the adjusting pressing plate can be fixed, the coil can be pressed and fixed in a protective mode in cooperation with the rubber block, follow-up mold drawing use is facilitated, and the problems that when a traditional coil is demolded, two persons need to be matched, and manpower and time are wasted are solved; when the die drawing frame is used for drawing the die, the generated internal stress is reduced, so that the cracking risk of the coil is reduced, the quality of the coil is improved, and the damage to the die is avoided; the die drawing frame is simple and convenient to operate, does not need excessive auxiliary facilities, is low in production cost, and can improve the production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of dry transformer coil drafting technology, specifically a novel dry transformer coil drafting frame structure. Background Technology

[0002] Currently, after the dry-type transformer coil is wound, it needs to be cast and cured with epoxy resin. The coil mold needs to be removed for subsequent use.

[0003] Traditional methods of mold removal involve hammering with a copper rod. This method is not only labor-intensive and time-consuming, but also causes significant damage to the mold, shortening its lifespan and increasing product manufacturing costs.

[0004] While hammering the mold, the coil will generate a lot of internal stress, reduce the coil's resistance to cracking, and leave a great quality risk for the product.

[0005] To address the aforementioned problems, this utility model proposes a novel dry-type transformer coil drafting frame structure. Utility Model Content

[0006] The purpose of this utility model is to provide a novel dry-type transformer coil extraction mold holder structure, which solves the problem that the method of removing the mold by hammering with a copper rod is not only labor-intensive and time-consuming, but also causes great damage to the mold, shortens the service life of the mold, and increases the manufacturing cost of the product; while hammering the mold, it will generate great internal stress on the coil, reduce the crack resistance of the coil, and leave great quality hidden dangers for the product.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a novel dry-type transformer coil drafting frame structure, comprising a base plate, wherein bolts are movably connected inside the base plate, and the bolts are threaded to the ground; a sliding groove is formed on the surface of the base plate, and a height-adjusting column is provided on the inner wall of the sliding groove; a pin hole is formed on the surface of the height-adjusting column, and an adjusting pressure plate is slidably connected to the inner wall of the height-adjusting column; a coil is in contact with the upper middle part of the base plate, and a rubber block is in contact with the lower end of the adjusting pressure plate; the rubber block is in contact with the coil; and a disassembly and assembly mechanism is provided together on the rubber block and the adjusting pressure plate.

[0008] Preferably, eight bolts are provided, and the eight bolts are arranged in a circular array on the base plate. The base plate can be fixed in place by means of the bolts.

[0009] Preferably, six sliding grooves are provided, and the six sliding grooves are arranged in a circular array on the base plate. By providing the sliding grooves, the height-adjustable column can be installed and used in an adaptive manner.

[0010] Preferably, multiple pin holes are provided, and the multiple pin holes are evenly distributed on the height adjustment column. The pin holes can be used in conjunction with pin shafts for installation.

[0011] Preferably, a pin is slidably connected to the inner wall of the pin hole, and the pin is slidably connected to the adjusting pressure plate. The adjusting pressure plate can be installed and used by setting the pin.

[0012] Preferably, the disassembly and assembly mechanism includes an insertion rod. The upper end of the rubber block is fixedly connected to the insertion rod, which is slidably connected to an adjusting pressure plate. A fixing plate is fixedly connected to the end face of the adjusting pressure plate. The fixing plate contacts the rubber block. A limit rod is slidably connected to the inner wall of the fixing plate. The limit rod is slidably connected to the insertion rod, and an end plate is fixedly connected to the end face of the limit rod. A spring is provided on the outer side of the limit rod. Through the cooperation of the limit rod and the insertion rod, the rubber block can be quickly installed and used.

[0013] Preferably, one end of the spring is welded to the end plate, and the other end of the spring is welded to the fixing plate. The end plate can be connected and used by means of the spring.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, through the setting of a base plate, height adjustment column, pin shaft and other structures, can fix the adjustment pressure plate, and with the help of rubber blocks, can protect and tighten the coil, which is convenient for subsequent demolding. It avoids the problem of traditional coil demolding requiring two people to cooperate, which wastes manpower and time. When using a demolding frame, the internal stress generated is reduced, which reduces the risk of coil cracking, improves the quality of the coil and avoids damage to the mold. The demolding frame is easy to operate, requires no excessive auxiliary facilities, has low production cost and improves production efficiency.

[0016] 2. This utility model pushes the rubber block into contact with the adjusting pressure plate, allowing the insertion rod to pass through the adjusting pressure plate. With the limit rod, spring and other structures, the limit rod can be limited, making the rubber block stable and convenient for operators to disassemble and use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 For the present utility model Figure 1 Top view;

[0019] Figure 3 For the present utility model Figure 1 Enlarged view of the disassembly and assembly mechanism;

[0020] Figure 4 For the present utility model Figure 2 Enlarged view of point A.

[0021] In the diagram: 1. Base plate; 10. Bolt; 11. Slide groove; 2. Height adjustment column; 20. Pin hole; 3. Adjustment pressure plate; 4. Coil; 5. Pin shaft; 6. Rubber block; 7. Disassembly and assembly mechanism; 71. Insert rod; 72. Fixing plate; 73. Limiting rod; 74. End plate; 75. Spring. Detailed Implementation

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 A novel dry-type transformer coil drafting frame structure includes a base plate 1. Bolts 10 are movably connected inside the base plate 1 and are threaded to the ground. A groove 11 is provided on the surface of the base plate 1. A height-adjusting column 2 is provided on the inner wall of the groove 11. A pin hole 20 is provided on the surface of the height-adjusting column 2. An adjusting pressure plate 3 is slidably connected to the inner wall of the height-adjusting column 2. A coil 4 is in contact with the middle of the upper end of the base plate 1. A rubber block 6 is in contact with the lower end of the adjusting pressure plate 3. The rubber block 6 is in contact with the coil 4.

[0024] Please see Figure 1 , Figure 2 There are eight bolts 10 arranged in a circular array on the base plate 1. The base plate 1 can be fixed by the bolts 10. There are six sliding grooves 11 arranged in a circular array on the base plate 1. The height adjustment column 2 can be installed and used in an adaptive manner by the sliding grooves 11.

[0025] Please see Figure 1 , Figure 2 Multiple pin holes 20 are provided and evenly distributed on the height adjustment column 2. The pin holes 20 can be used in conjunction with the pin shaft 5 for installation. The inner wall of the pin hole 20 is slidably connected to the pin shaft 5, and the pin shaft 5 is slidably connected to the adjusting pressure plate 3. The adjusting pressure plate 3 can be installed using the pin shaft 5.

[0026] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 The rubber block 6 and the adjusting pressure plate 3 are both equipped with a disassembly and assembly mechanism 7. The disassembly and assembly mechanism 7 includes a rod 71. The upper end of the rubber block 6 is fixedly connected to the rod 71, and the rod 71 is slidably connected to the adjusting pressure plate 3. The end face of the adjusting pressure plate 3 is fixedly connected to a fixing plate 72, which is in contact with the rubber block 6. The inner wall of the fixing plate 72 is slidably connected to a limit rod 73, which is slidably connected to the rod 71. The end face of the limit rod 73 is fixedly connected to an end plate 74, and a spring 75 is provided on the outer side of the limit rod 73. One end of the spring 75 is welded to the end plate 74, and the other end of the spring 75 is welded to the fixing plate 72. The end plate 74 can be connected and used through the setting of the spring 75. The rubber block 6 can be quickly installed and used through the cooperation of the limit rod 73 and the rod 71.

[0027] The specific implementation process of this utility model is as follows: In use, by pulling the end plate 74 to move away from the fixed plate 72, the limiting rod 73 is driven to slide along the inner wall of the fixed plate 72, the spring 75 is deformed, and then the rubber block 6 is pushed to contact the adjusting pressure plate 3, so that the insertion rod 71 passes through the adjusting pressure plate 3. The end plate 74 is then released so that the spring 75 returns to its original deformation, so that the limiting rod 73 is pulled through the insertion rod 71 to limit the insertion rod 71, so that the insertion rod 71 drives the rubber block 6 to be in a stable position, which facilitates quick disassembly and assembly by the operator.

[0028] After the coil 4 has cured, the mold core and bottom mold are first removed and separated. Then, the coil 4 is lifted into the drafting frame using an overhead crane. The height adjustment column 2 is moved to the outside of the coil 4 according to its diameter. The base plate 1 has six sliding grooves 11 arranged in different positions, allowing the number of height adjustment columns 2 to be increased or decreased according to the outer diameter of the coil 4. This is to ensure more even force distribution on the coil 4 during the drafting process. The same drafting frame can be used when the coil 4 has air duct support bars.

[0029] Based on the height of coil 4, the adjusting plate 3 is placed inside the height adjusting column 2, and then the adjusting plate 3 is fixed in place through the pin hole 20 and the pin shaft 5, so that the rubber block 6 is in contact with coil 4 to protect coil 4. After coil 4 is positioned, the mold core inside coil 4 can be easily pulled out through the lifting ring on the mold using a cantilever crane, and coil 4 can be demolded.

[0030] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel dry-type transformer coil drafting frame structure, comprising a base plate (1), characterized in that: The base plate (1) is internally connected to a bolt (10), which is threaded to the ground. The surface of the base plate (1) is provided with a sliding groove (11), and the inner wall of the sliding groove (11) is provided with a height adjustment column (2). The surface of the height adjustment column (2) is provided with a pin hole (20), and the inner wall of the height adjustment column (2) is slidably connected to an adjustment pressure plate (3). The upper middle part of the base plate (1) is in contact with a coil (4), and the lower end of the adjustment pressure plate (3) is in contact with a rubber block (6). The rubber block (6) is in contact with the coil (4), and the rubber block (6) and the adjustment pressure plate (3) are jointly provided with a disassembly and assembly mechanism (7).

2. The novel dry-type transformer coil drafting frame structure according to claim 1, characterized in that: Eight bolts (10) are provided, and the eight bolts (10) are arranged in a ring array on the base plate (1).

3. The novel dry-type transformer coil drafting frame structure according to claim 1, characterized in that: The six slides (11) are arranged in a circular array on the base plate (1).

4. The novel dry-type transformer coil drafting frame structure according to claim 1, characterized in that: Multiple pin holes (20) are provided, and the multiple pin holes (20) are evenly distributed on the height adjustment column (2).

5. The novel dry-type transformer coil drafting frame structure according to claim 1, characterized in that: The inner wall of the pin hole (20) is slidably connected to a pin shaft (5), and the pin shaft (5) is slidably connected to the adjusting pressure plate (3).

6. The novel dry-type transformer coil drafting frame structure according to claim 1, characterized in that: The disassembly and assembly mechanism (7) includes a plug rod (71). The upper end of the rubber block (6) is fixedly connected to the plug rod (71). The plug rod (71) is slidably connected to the adjusting pressure plate (3). The end face of the adjusting pressure plate (3) is fixedly connected to a fixing plate (72). The fixing plate (72) is in contact with the rubber block (6). The inner wall of the fixing plate (72) is slidably connected to a limit rod (73). The limit rod (73) is slidably connected to the plug rod (71). The end face of the limit rod (73) is fixedly connected to an end plate (74). A spring (75) is provided on the outer side of the limit rod (73).

7. The novel dry-type transformer coil drafting frame structure according to claim 6, characterized in that: One end of the spring (75) is welded to the end plate (74), and the other end of the spring (75) is welded to the fixing plate (72).

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