Outer wrapping frame of current transformer

Abstract

The utility model discloses a current transformer outer wrapping frame which comprises a supporting frame, at least three groups of rotating bodies are arranged on the supporting frame, the three groups of rotating bodies are distributed in the circumferential direction, each group of rotating bodies comprises a supporting rod and a rotating wheel, the rotating wheel is a hollow cylinder so as to be conveniently arranged on the supporting rod in a sleeved mode, and bearings are arranged at the two ends of the interior of the rotating wheel. The supporting rods are sleeved with the rotating wheels, the bearings are matched with the supporting rods, the rotating wheels can rotate relative to the supporting rods, the supporting rods of each rotating body are sleeved with the multiple rotating wheels, the bearings are arranged at the two ends of the interior of each rotating wheel, and isolating rings are arranged between the rotating wheels. When the winding device is used for winding, when the winding position needs to be adjusted, a part can rotate anticlockwise or clockwise along the circumferential direction, then winding is carried out, the trouble of hoisting the part in the traditional process is avoided in the winding process, all-directional winding can be realized through rotation, and the winding efficiency is improved. The device is very suitable for wrapping large-size and heavy-weight parts, and the wrapping efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary processing of electrical equipment, and more specifically to an outer wrapping frame of a current transformer. Background Art

[0002] Many electrical devices require wrapping during the production process, such as wrapping an inner insulation layer around the iron core, then wrapping one or more layers of enameled wire, and then wrapping an outer insulation layer.

[0003] When wrapping, the part needs to be rotated to change the wrapping position of the part. For small parts, rotating the part is relatively convenient. However, for large and heavy parts, such as making large and heavy current transformers, the workpiece that needs to be wrapped is a ring structure, so tooling is needed.

[0004] For wrapping large-sized and heavy parts, the current method is relatively simple, using three movable racks. After wrapping for a period of time, the parts need to be lifted up, the racks need to be moved, and then the parts are put down and wrapped again. The wrapping process is relatively cumbersome, the wrapping efficiency is relatively low, and when necessary, personnel cooperation is required. Summary of the invention

[0005] In order to solve the above problems, the utility model provides a current transformer outer wrapping frame with an ingenious structure, on which the parts to be wrapped can be rotated and changed in position, which is convenient for operators to wrap and improves the wrapping efficiency.

[0006] According to one aspect of the utility model, a current transformer outer wrapping frame is provided, which includes a support frame, and at least three groups of rotating bodies are arranged on the support frame, and the three groups of rotating bodies are distributed in the circumferential direction, and each group of rotating bodies includes a support rod and a rotating wheel, and the rotating wheel is a hollow cylinder so that it can be sleeved on the support rod, and the inner two ends of the rotating wheel are provided with bearings, and the rotating wheel is sleeved on the support rod, and the bearings are matched with the support rod, and the rotating wheel can rotate relative to the support rod. Thus, the parts to be wrapped, such as the parts that need to be wrapped in the current transformer, such as the annular iron core, are placed on the rotating body, and when the wrapping position needs to be adjusted, the parts can be pulled, and the parts can be rotated counterclockwise or clockwise along the circumferential direction by rotating the bearing in the rotating wheel, and then wrapping is performed, and the wrapping frame provided by the present application is used for wrapping, and there is no need to lift the parts during the wrapping process, and all-round wrapping can be achieved by rotation, and the wrapping frame is suitable for wrapping large-sized and heavy-weight parts.

[0007] In some embodiments, a plurality of wheels are sleeved on the support rods of each group of rotating bodies, bearings are arranged at both ends of each wheel, and isolation rings are arranged between each wheel. Thus, a segmented structure is formed by a plurality of wheels, which can reduce the processing difficulty of the wheels compared with a long wheel, and can also be applied to wrapping racks of different sizes by splicing a plurality of wheels. Isolation rings are arranged between the wheels, so that each wheel rotates independently without affecting each other, which is also conducive to protecting the bearings.

[0008] In some embodiments, two limiting fixing nuts are provided on the support rod, and the two limiting fixing nuts are respectively provided on the outer sides of the rotating wheels at both ends to limit the positions of the rotating wheels. Thus, the positions of the multiple rotating wheels after assembly are limited by the limiting fixing nuts on both sides to prevent the rotating wheels from moving to the side and getting stuck, which affects the smooth rotation of the rotating wheels.

[0009] In some embodiments, the support frame includes a chassis, vertical support steel, and transverse support steel. The vertical support steel is vertically fixed on the chassis, and each vertical support steel is interconnected by the transverse support steel. An oblique support steel is provided between the vertical support steel and the transverse support steel. A support block is provided on the transverse support steel, and the rotating body is mounted between the support block and the vertical support steel. Thus, the chassis, the vertical support steel, the transverse support steel, and the oblique support steel are welded into a support frame, the bottom of the support block is fixed to the transverse support steel, and the two ends of the support rod of the rotating body are respectively installed on the support block and the vertical support steel, which is very firm.

[0010] In some embodiments, the vertical support steel is a square tube, and both ends of the support rod are provided with external threads, and both ends of the support rod are respectively penetrated and installed on the support block and the vertical support steel, and both sides of the tube wall of the support block and the vertical support steel are provided with nuts assembled with the support rod to clamp the tube wall of the support block and the vertical support steel. In this way, both ends of the support rod are firmly installed and easy to disassemble and assemble.

[0011] In some embodiments, four groups of rotating bodies are provided, and the four groups of rotating bodies are evenly distributed in the circumferential direction. Therefore, when four groups of rotating bodies are used, adjacent rotating bodies are distributed at 90 degrees, and the number of rotating bodies can be increased according to the size of the wrapping frame.

[0012] In some embodiments, the rotating wheel is a polyurethane PU wheel. Therefore, the rotating wheel has elasticity, can play a certain shock absorption effect, and is more wear-resistant, which is conducive to extending the service life.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the outer wrapping frame of the current transformer of the utility model has a simple structure and an ingenious design. When the wrapping frame is used for wrapping and the wrapping position needs to be adjusted, the part is rotated counterclockwise or clockwise along the circumferential direction by rotating the inner bearing of the rotating wheel, and then the wrapping is carried out. The trouble of lifting the parts in the traditional process is avoided during the wrapping process, and all-round wrapping can be achieved by rotation. The utility model is very suitable for wrapping large-sized and heavy-weight parts, and the wrapping efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of an embodiment of an outer wrapping frame of a current transformer of the utility model;

[0015] Figure 2 The present invention is a structural schematic diagram of an implementation method of an outer wrapping frame of a current transformer;

[0016] Figure 3 yes Figure 1 Schematic diagram of the top view structure. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with specific implementation methods.

[0018] like Figures 1 to 3 As shown, a current transformer outer wrapping frame of one embodiment of the utility model includes a support frame 1, and at least three groups of rotating bodies 2 are arranged on the support frame 1, and the three groups of rotating bodies 2 are distributed in a circumferential direction. Each group of rotating bodies 2 includes a support rod 21 and a rotating wheel 22, and the rotating wheel 22 is a hollow cylinder so that it can be sleeved on the support rod 21. A bearing 23 is embedded at both ends of the inner part of each rotating wheel 22. The rotating wheel 22 is sleeved on the support rod 21, and the bearing 23 is matched with the support rod 21, so that the rotating wheel 22 can rotate smoothly relative to the support rod 21. The rotating wheel 22 is a polyurethane PU wheel, which has elasticity and can play a certain shock-absorbing effect, and is more wear-resistant, which is conducive to extending the service life.

[0019] A plurality of wheels 22 are sleeved on the support rods 21 of each group of rotating bodies 2, and a bearing 23 is embedded at both ends of each wheel 22. An isolation ring 24 is installed between each wheel 22, so that each wheel 22 rotates independently without affecting each other, which is also beneficial to protecting the bearing 23. The segmented structure formed by the plurality of wheels 22 can reduce the processing difficulty of the wheels 22 compared with the long wheels 22, and can also be applied to the wrapping racks of different sizes by splicing a plurality of wheels 22.

[0020] Two limiting fixing nuts 25 are sleeved on the support rod 21, and the two limiting fixing nuts 25 are respectively arranged outside the rotating wheels 22 at both ends to limit the position of the assembled rotating wheels 22. Therefore, the positions of the assembled rotating wheels 22 are limited by the limiting fixing nuts 25 on both sides to prevent the rotating wheels 22 from moving to the side and getting stuck, which affects the smooth rotation of the rotating wheels 22.

[0021] The support frame 1 specifically includes a chassis 11, a vertical support steel 12, and a transverse support steel 13. The chassis 11 is a circular ring structure. The vertical support steel 12 is vertically welded and fixed on the chassis 11. The transverse support steel 13 is welded between each vertical support steel 12 to form the support frame 1. The inclined support steel 14 is welded between the vertical support steel 12 and the transverse support steel 13. Support blocks 15 are installed on the transverse support steel 13 by bolts. The number of support blocks 15 is the same as the number of vertical support steels 12, and the support blocks 15 and the vertical support steel 12 are arranged opposite to each other, and the rotating body 2 is erected between the support blocks 15 and the vertical support steel 12.

[0022] The vertical support steel 12 is a square tube, and the support block 15 and the vertical support steel 12 are provided with through holes for installing the support rod 21. Both ends of the support rod 21 have external threads, and the two ends of the support rod 21 are respectively penetrated and installed in the through holes of the support block 15 and the vertical support steel 12. Both sides of the tube wall of the support block 15 and the vertical support steel 12 are provided with nuts 26 assembled with the support rod 21 to clamp the tube wall of the support block 15 and the vertical support steel 12 to fix the two ends of the support rod 21. The two ends of the support rod 21 are firmly installed and easy to disassemble and assemble.

[0023] The chassis 11, the vertical support steel 12, the transverse support steel 13 and the oblique support steel 14 are welded into a support frame 1, the bottom of the support block 15 is fixed to the transverse support steel 13, and the two ends of the support rod 21 of the rotating body 2 are respectively installed on the support block 15 and the vertical support steel 12, which is very firm.

[0024] In this embodiment, there are four groups of rotating bodies 2, and the four groups of rotating bodies 2 are evenly distributed in the circumferential direction with the center of the bottom plate 11 of the support frame 1 as the center point. When four groups of rotating bodies 2 are used, adjacent rotating bodies 2 are distributed at 90 degrees. In practical applications, the number of rotating bodies 2 can be increased according to the size of the wrapping frame.

[0025] The parts to be wrapped, such as the parts of the current transformer that need to be wrapped, specifically the annular iron core, are placed on the rotating body 2. When the wrapping position needs to be adjusted, the parts can be pulled, and the bearing 23 in the rotating wheel 22 is rotated to make the parts rotate counterclockwise or clockwise along the circumferential direction, and then the wrapping can be continued. When the wrapping position needs to be adjusted again, the parts are pulled again to rotate the parts along the circumferential direction to the desired position, and the wrapping can be continued.

[0026] The utility model has a simple structure and ingenious design for the outer wrapping frame of the current transformer. The wrapping frame is used for wrapping, and the trouble of lifting parts in the traditional process is avoided during the wrapping process. All-round wrapping can be achieved by rotation, which is very suitable for wrapping large-sized and heavy-weight parts, and the wrapping efficiency is greatly improved. The wrapping frame provided by the utility model is suitable for wrapping annular parts, and can also be used for parts of other shapes with larger sizes or larger weights.

[0027] The above are only some embodiments of the present invention. It should be pointed out that for ordinary technicians in this field, other modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A current transformer outer wrapping frame, comprising a support frame (1), characterized in that: At least three groups of rotating bodies (2) are arranged on the support frame (1). The three groups of rotating bodies (2) are distributed in a circumferential direction. Each group of rotating bodies (2) comprises a support rod (21) and a rotating wheel (22). The rotating wheel (22) is a hollow cylinder so as to be sleeved on the support rod (21). A plurality of rotating wheels (22) are sleeved on the support rod (21) of each group of rotating bodies (2). Both ends of each rotating wheel (22) are provided with bearings (23). The rotating wheel (22) is sleeved on the support rod (21), and the bearings (23) are matched with the support rod (21). The rotating wheel (22) is rotatable relative to the support rod (21). An isolation ring (24) is provided between each rotating wheel (22).

2. The current transformer outer wrapping frame according to claim 1, characterized in that: The support rod (21) is provided with two position-limiting fixing nuts (25), and the two position-limiting fixing nuts (25) are respectively arranged outside the rotating wheel (22) at two ends to limit the position of the rotating wheel (22).

3. The current transformer outer wrapping frame according to claim 2, characterized in that: The support frame (1) comprises a chassis (11), vertical support steels (12), and transverse support steels (13); the vertical support steels (12) are vertically fixed on the chassis (11); the vertical support steels (12) are interconnected via transverse support steels (13); oblique support steels (14) are provided between the vertical support steels (12) and the transverse support steels (13); a support block (15) is provided on the transverse support steel (13); and the rotating body (2) is mounted between the support block (15) and the vertical support steels (12).

4. The current transformer outer wrapping frame according to claim 3, characterized in that: The vertical support steel (12) is a square tube, and both ends of the support rod (21) are provided with external threads. The two ends of the support rod (21) are respectively penetrated and installed on the support block (15) and the vertical support steel (12), and nuts (26) assembled with the support rod (21) are provided on both sides of the tube wall of the support block (15) and the vertical support steel (12) to clamp the tube wall of the support block (15) and the vertical support steel (12).

5. The current transformer outer wrapping frame according to any one of claims 1 to 4, characterized in that: The rotating bodies (2) are provided in four groups, and the four groups of rotating bodies (2) are evenly distributed in the circumferential direction.

6. The current transformer outer wrapping frame according to claim 1, characterized in that: The rotating wheel (22) is a polyurethane (PU) wheel.

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