Frequency conversion dry-type transformer convenient to maintain

Abstract

The utility model discloses a frequency conversion dry-type transformer convenient to maintain, and relates to the technical field of transformers. The dry-type transformer comprises a dry-type transformer body, two lower clamping pieces and two upper clamping pieces, the bottom end of the dry-type transformer body is assembled between the two lower clamping pieces, the top end of the dry-type transformer body is assembled between the two upper clamping pieces, and fixing frames are fixedly installed at the two ends of the two lower clamping pieces. According to the dry-type transformer body overturning device, the dry-type transformer body is clamped through the clamping plate of the clamping mechanism, the rotating shaft in the overturning mechanism is driven to rotate, and the rotating shaft enables the dry-type transformer body to overturn through the connecting rod, the movable rod, the connecting plate, the U-shaped frame and the clamping plate, so that the to-be-overhauled part of the dry-type transformer body faces vertically, and the dry-type transformer body can be operated by a maintainer; therefore, automatic overturning of the dry-type transformer body in the overhauling process is conveniently achieved, the convenience of on-site overhauling of the dry-type transformer body is effectively improved, and the operation intensity of overhauling personnel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a frequency conversion dry-type transformer which is convenient for maintenance. Background Technique

[0002] A dry-type transformer is a device that converts electrical energy from one voltage level to another. It does not require oil for cooling, but instead uses special insulating materials to isolate the current and prevent electric arcs. Such transformers are widely used in indoor and outdoor power systems, especially in high-altitude or flammable environments;

[0003] However, there are still some problems with the frequency conversion dry-type transformers in the prior art:

[0004] After the existing technology is installed, during the overhaul process, since the overhaul operation is carried out at the installation site, the operating personnel need to disassemble the dry-type transformer, and then adjust the angle of the dry-type transformer according to the specific situation of the overhaul. Due to the heavy weight of the dry-type transformer, the overhaul of the dry-type transformer is relatively inconvenient, and the operating intensity of the overhaul operating personnel is high. Content of the Utility Model

[0005] In order to solve the problems of inconvenient overhaul and high overhaul operation intensity of the dry-type transformer; the purpose of the utility model is to provide a frequency conversion dry-type transformer which is convenient for maintenance.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme: a frequency conversion dry-type transformer which is convenient for maintenance, including a dry-type transformer body, two lower clamping members and two upper clamping members. The bottom end of the dry-type transformer body is assembled between the two lower clamping members, and the top end of the dry-type transformer body is assembled between the two upper clamping members. Fixing frames are detachably installed at both ends of the two lower clamping members, L-shaped equipment frames are fixedly installed in the middle of the two fixing frames, U-shaped frames are arranged on one side of the two L-shaped equipment frames, a clamping mechanism is arranged on the U-shaped frames, and a turning mechanism is arranged between the L-shaped equipment frames and the U-shaped frames;

[0007] The turning mechanism includes two rotating shafts. One end of one of the rotating shafts is rotatably connected to one end of an L-shaped equipment frame. Connecting rods are fixedly installed at one ends of the two rotating shafts. One ends of the two connecting rods are provided with movable rods. One ends of the two movable rods are fixedly installed with connecting plates. One side of one of the connecting plates is fixedly connected to the middle of a U-shaped frame. A motor is fixedly arranged on one side of one of the L-shaped equipment frames. A rotating rod is fixedly installed at the driving output end of the motor. A worm is fixedly installed at one end of the rotating rod. A worm gear is fixedly installed at the other end of one of the rotating shafts. The worm is meshed with the worm gear.

[0008] Preferably, cavities are formed inside both of the two connecting rods, and two clamping grooves are formed on the inner walls of the two cavities. One end of each of the four clamping grooves is slidably installed with a clamping block, and a movable disc is fixedly installed between every two adjacent clamping blocks. The other end of one of the movable rods is fixedly connected to one side of a movable disc, and telescopic springs are fixedly installed on the inner walls of the two cavities. One end of one of the telescopic springs is fixedly connected to the other side of a movable disc.

[0009] Preferably, the clamping mechanism includes four clamping plates. Sliding grooves are formed on both of the two U-shaped frames, and sliders are slidably installed at both ends of the two sliding grooves. One side of one of the sliders is fixedly connected to one side of a clamping plate.

[0010] Preferably, a double-headed screw rod is rotatably installed on both of the two U-shaped frames. One of the double-headed screw rods penetrates through one of the sliding grooves and is in threaded rotational connection with the two adjacent sliders.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In the present utility model, the clamping plates of the clamping mechanism clamp the dry-type transformer body, and by driving the rotation of the rotating shaft in the flipping mechanism, the rotating shaft flips the dry-type transformer body through the connecting rod, movable rod, connecting plate, U-shaped frame and clamping plate, so that the part to be repaired of the dry-type transformer body faces vertically, which is convenient for maintenance personnel to operate. Thus, the automatic flipping of the dry-type transformer body during the maintenance process is conveniently realized, and furthermore, the convenience of on-site maintenance of the dry-type transformer body is effectively improved, and the working intensity of maintenance personnel is reduced. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a schematic diagram of the overall structure of a frequency conversion dry-type transformer convenient for maintenance according to the present utility model.

[0015] Figure 2 It is a schematic diagram of the connection structure of the U-shaped frame, L-shaped equipment frame, fixed frame and lower clamping part according to the present utility model.

[0016] Figure 3 It is a schematic diagram of the connection structure of the clamping mechanism and the flipping mechanism according to the present utility model.

[0017] Figure 4This is a schematic cross-sectional view of the connecting rod of the utility model.

[0018] Figure 5 For the utility model Figure 4 An enlarged schematic view of part A in it.

[0019] In the figure: 1, dry-type transformer body; 2, lower clamping member; 21, upper clamping member; 3, fixing bracket; 4, L-shaped equipment bracket; 5, U-shaped bracket; 6, clamping mechanism; 61, clamping plate; 62, anti-slip pad; 63, sliding groove; 64, slider; 65, double-headed screw; 66, spherical handle; 7, flipping mechanism; 71, rotating shaft; 72, connecting rod; 73, movable rod; 74, connecting plate; 75, cavity; 76, clamping groove; 77, clamping block; 78, movable disk; 79, telescopic spring; 8, motor; 81, L-shaped support frame; 82, rotating rod; 83, worm; 84, worm gear. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment: As Figures 1-5 shown, the present utility model provides a frequency conversion dry-type transformer that is convenient for maintenance, including a dry-type transformer body 1, two lower clamping members 2 and two upper clamping members 21. The bottom end of the dry-type transformer body 1 is assembled between the two lower clamping members 2, and the top end of the dry-type transformer body 1 is assembled between the two upper clamping members 21. Fixing brackets 3 are detachably installed at both ends of the two lower clamping members 2, and the fixing brackets 3 are fixed to the ends of the lower clamping members 2 by bolts. L-shaped equipment brackets 4 are fixedly installed in the middle of the two fixing brackets 3. U-shaped brackets 5 are provided on one side of the two L-shaped equipment brackets 4. A clamping mechanism 6 is provided on the U-shaped brackets 5. A flipping mechanism 7 is provided between the L-shaped equipment brackets 4 and the U-shaped brackets 5. By setting the clamping mechanism 6, when the dry-type transformer body 1 is separated from the two lower clamping members 2 and the two upper clamping members 21 and is lifted by a hoisting device, the clamping mechanism 6 can clamp the dry-type transformer body 1. By setting the flipping mechanism 7, the flipping mechanism 7 can flip the dry-type transformer body 1, so as to facilitate the operators to repair the dry-type transformer body 1, improve the convenience of on-site repair of the dry-type transformer body 1, and reduce the working intensity of the operators;

[0022] The flipping mechanism 7 includes two rotating shafts 71. One end of one of the rotating shafts 71 is rotatably connected to one end of an L-shaped equipment rack 4. Connecting rods 72 are fixedly installed at one ends of the two rotating shafts 71. Moving rods 73 are provided at one ends of the two connecting rods 72. Connecting plates 74 are fixedly installed at one ends of the two moving rods 73. One side of one of the connecting plates 74 is fixedly connected to the middle of a U-shaped frame 5. One side of one of the L-shaped equipment racks 4 is fixedly provided with a motor 8. A rotating rod 82 is fixedly installed at the driving output end of the motor 8. A worm 83 is fixedly installed at one end of the rotating rod 82. A worm gear 84 is fixedly installed at the other end of one of the rotating shafts 71. The worm 83 is meshed with the worm gear 84. By turning on the motor 8, the driving shaft of the motor 8 can make the rotating rod 82 rotate. The rotating rod 82 can make the rotating shaft 71 rotate through the worm 83 and the worm gear 84. The rotating shaft 71 can make the dry-type transformer body 1 flip through the connecting rod 72, the moving rod 73, the connecting plate 74, the U-shaped frame 5 and the clamping mechanism 6.

[0023] Cavities 75 are respectively formed inside the two connecting rods 72. Two clamping grooves 76 are respectively formed on the inner walls of the two cavities 75. Clamping blocks 77 are slidably installed at one ends of the four clamping grooves 76. Moving disks 78 are fixedly installed between adjacent two of the clamping blocks 77. One end of one of the moving rods 73 is fixedly connected to one side of one of the moving disks 78. Telescopic springs 79 are fixedly installed on the inner walls of the two cavities 75. One end of one of the telescopic springs 79 is fixedly connected to the other side of one of the moving disks 78. By providing the cavities 75, the clamping grooves 76, the clamping blocks 77, the moving disks 78 and the telescopic springs 79, the connecting rod 72 can make the moving rod 73 rotate through the clamping blocks 77 and the moving disks 78. The contractibility of the telescopic spring 79 can make the moving rod 73 contract into the cavity 75 through the moving disk 78, so that the U-shaped frame 5 and the clamping mechanism 6 can horizontally move towards the side away from the dry-type transformer body 1.

[0024] An L-shaped support frame 81 is fixedly installed on the outer wall of the motor 8. One end of the L-shaped support frame 81 is fixedly connected to one side of one of the L-shaped equipment racks 4. By providing the L-shaped support frame 81, the L-shaped support frame 81 can support and fix the motor 8.

[0025] The clamping mechanism 6 includes four clamping plates 61. Sliding grooves 63 are respectively formed on the two U-shaped frames 5. Sliding blocks 64 are slidably installed at both ends of the two sliding grooves 63. One side of one of the sliding blocks 64 is fixedly connected to one side of one of the clamping plates 61. By providing the clamping plates 61, when the two clamping plates 61 in the vertical direction approach each other, the shell of the dry-type transformer body 1 can be clamped. By driving the two sliding blocks 64 to approach or move away from each other in the sliding grooves 63, the two sliding blocks 64 can make the two clamping plates 61 approach or move away from each other.

[0026] On one side of each of the four clamping plates 61, an anti-slip pad 62 is fixedly installed. By providing the anti-slip pad 62, the clamping plate 61 clamps the outer shell of the dry-type transformer body 1 through the anti-slip pad 62, improving the stability of the dry-type transformer body 1 after being clamped.

[0027] On each of the two U-shaped frames 5, a double-headed screw 65 is rotatably installed. One of the double-headed screws 65 passes through a sliding groove 63 and is in threaded rotation connection with two adjacent sliders 64. By rotating the double-headed screw 65, the double-headed screw 65 can drive the two sliders 64 to approach or move away from each other within the sliding groove 63.

[0028] At one end of each of the two double-headed screws 65, a spherical handle 66 is fixedly installed. By providing the spherical handle 66, it is convenient for maintenance personnel to rotate the double-headed screw 65.

[0029] Working principle: When it is necessary to repair the dry-type transformer body 1, the maintenance personnel first separate the two upper clamping members 21 and the two lower clamping members 2 from the dry-type transformer body 1, and then lift the dry-type transformer body 1 by a hoisting device so that the height of the dry-type transformer body 1 is located between the two vertically corresponding clamping plates 61. At this time, the two telescopic springs 79 stretch and reset, and through the corresponding movable rods 73, connecting plates 74 and U-shaped frames 5, the four clamping plates 61 horizontally move toward the side of the dry-type transformer body 1. Then, rotate the two spherical handles 66 respectively. The two spherical handles 66 rotate the two double-headed screws 65. While the two double-headed screws 65 are rotating, they drive the two vertically corresponding sliders 64 to slide toward each other within the corresponding sliding grooves 63. At this time, the four sliders 64 cause the four clamping plates 61 to lift synchronously, and the four clamping plates 61 clamp the outer shell of the dry-type transformer body 1 through the corresponding anti-slip pads 62, and then remove the hoisting device;

[0030] During the repair process, the operator turns on the motor 8. The driving shaft of the motor 8 rotates the rotating rod 82. The rotating rod 82 rotates the rotating shaft 71 through the worm 83 and the worm gear 84. The rotating shaft 71 rotates the dry-type transformer body 1 through the connecting rod 72, the movable rod 73, the connecting plate 74, the U-shaped frame 5 and the clamping plate 61, making the part to be repaired of the dry-type transformer body 1 vertically face upward for the maintenance personnel to operate, thus conveniently realizing the automatic flipping of the dry-type transformer body 1 during the repair process, effectively improving the convenience of on-site repair of the dry-type transformer body 1 and reducing the working intensity of the maintenance personnel.

[0031] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these changes and modifications.

Claims

1. A variable-frequency dry-type transformer convenient for maintenance, comprising a dry-type transformer body (1), two lower clamping members (2) and two upper clamping members (21). The bottom end of the dry-type transformer body (1) is assembled between the two lower clamping members (2), and the top end of the dry-type transformer body (1) is assembled between the two upper clamping members (21), characterized in that: Fixing brackets (3) can be detachably installed at both ends of the two lower clamping members (2). L-shaped equipment brackets (4) are fixedly installed in the middle of the two fixing brackets (3). U-shaped brackets (5) are provided on one side of the two L-shaped equipment brackets (4). A clamping mechanism (6) is provided on the U-shaped bracket (5). A turning mechanism (7) is provided between the L-shaped equipment bracket (4) and the U-shaped bracket (5). The turning mechanism (7) includes two rotating shafts (71). One end of one of the rotating shafts (71) is rotatably connected to one end of an L-shaped equipment bracket (4). Connecting rods (72) are fixedly installed at one ends of the two rotating shafts (71). Moving rods (73) are provided at one ends of the two connecting rods (72). Connecting plates (74) are fixedly installed at one ends of the two moving rods (73). One side of one of the connecting plates (74) is fixedly connected to the middle of a U-shaped bracket (5). A motor (8) is fixedly provided on one side of one of the L-shaped equipment brackets (4). A rotating rod (82) is fixedly installed at the driving output end of the motor (8). A worm (83) is fixedly installed at one end of the rotating rod (82). A worm gear (84) is fixedly installed at the other end of one of the rotating shafts (71). The worm (83) is meshed with the worm gear (84).

2. The frequency conversion dry-type transformer convenient for maintenance according to claim 1, wherein Cavities (75) are opened in the interiors of the two connecting rods (72). Two card slots (76) are opened in the inner walls of the two cavities (75). One ends of the four card slots (76) are all slidably installed with clamping blocks (77). Movable disks (78) are fixedly installed between adjacent two of the clamping blocks (77). The other end of one of the moving rods (73) is fixedly connected to one side of a movable disk (78). Telescopic springs (79) are fixedly installed on the inner walls of the two cavities (75). One end of one of the telescopic springs (79) is fixedly connected to the other side of a movable disk (78).

3. The frequency conversion dry-type transformer convenient for maintenance according to claim 1, characterized in that, An L-shaped support frame (81) is fixedly installed on the outer wall of the motor (8). One end of the L-shaped support frame (81) is fixedly connected to one side of one of the L-shaped equipment brackets (4).

4. The frequency conversion dry-type transformer convenient for maintenance according to claim 1, characterized in that, The clamping mechanism (6) includes four clamping plates (61). Chute grooves (63) are opened on the two U-shaped brackets (5). Sliders (64) are slidably installed at both ends of the two chute grooves (63). One side of one of the sliders (64) is fixedly connected to one side of a clamping plate (61).

5. The frequency conversion dry-type transformer convenient for maintenance according to claim 4, characterized in that, Anti-slip pads (62) are fixedly installed on one surface of the four clamping plates (61).

6. The frequency conversion dry-type transformer convenient for maintenance according to claim 4, characterized in that, Double-headed screw rods (65) are rotatably installed on the two U-shaped brackets (5). One of the double-headed screw rods (65) penetrates through a chute groove (63) and is in threaded rotation connection with the adjacent two sliders (64).

7. The frequency conversion dry-type transformer convenient for maintenance according to claim 6, wherein, Spherical handles (66) are fixedly installed at one ends of the two double-headed screw rods (65).

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