A current sleeve core winding jig

Abstract

The application discloses a winding frame for a current sleeve core, which comprises a first supporting frame for supporting a core winding pipe of the current sleeve core, the first supporting frame being provided with a first connecting part and a second connecting part, the first connecting part being used for detachably connecting with one end of the core winding pipe, and the second connecting part being used for detachably connecting with the other end of the core winding pipe; a second supporting frame for supporting a paper roll; and a control system, which comprises a winding rotating speed control unit for controlling the first supporting frame to drive the rotating speed of the core winding pipe, a paper position control unit for controlling the relative position between the paper roll supported by the second supporting frame and the core winding pipe supported by the first supporting frame, and a tension control unit for controlling the paper tension between the paper roll and the core winding pipe. The winding frame for the current sleeve core provided by the application reduces the winding difficulty.

Description

Technical Field

[0001] This invention relates to the field of current bushing processing equipment, and in particular to a rolling frame for current bushing cores. Background Technology

[0002] With the rapid development of my country's economy, the scale of the power grid continues to expand, and the power system requires various electrical equipment that can operate safely to support it.

[0003] High-current bushings require a winding frame for winding during manufacturing. For example, there are two specifications of paper-impregnated capacitor-type high-current bushings with rated voltage of 40.5kV and rated current of 20000A and 37000A. Due to their large size, winding them is quite difficult.

[0004] Therefore, how to reduce the difficulty of rolling is an urgent problem to be solved by people in this technical field. Summary of the Invention

[0005] In view of this, the present invention provides a winding frame for current bushing cores to reduce the difficulty of winding.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A winding frame for a current bushing core includes:

[0008] A first support frame for supporting the core of a current bushing core is provided, the first support frame having a first connecting part and a second connecting part, the first connecting part being detachably connected to one end of the core coiled tube, and the second connecting part being detachably connected to the other end of the core coiled tube.

[0009] A second support frame for supporting the paper roll;

[0010] The control system includes a winding speed control unit for controlling the rotation speed of the core winding tube driven by the first support frame, a paper position control unit for controlling the relative position of the paper roll supported by the second support frame and the core winding tube supported by the first support frame, and a tension control unit for controlling the paper tension between the paper roll and the core winding tube.

[0011] Optionally, in the above-mentioned current bushing core winding frame, the first connecting portion includes:

[0012] The first support rod, one end of which is rotatably connected to the main body of the first support frame;

[0013] A support component having a central connecting portion and a plurality of threaded holes arranged circumferentially along the central connecting portion, the central connecting portion being connected to the other end of the first support rod, and the axis of the threaded holes being arranged radially along the first support rod;

[0014] The screws are multiple and are arranged one-to-one with the threaded holes. One end of the screw is threaded into the threaded hole, and the other end of the screw is used to abut against the inner wall of one end of the core rolled tube.

[0015] Optionally, the above-mentioned current bushing core rolling frame also includes a positioning nut that is threadedly engaged with the screw.

[0016] The positioning nut is in positioning contact with at least one end face of the threaded hole.

[0017] Optionally, in the above-mentioned current bushing core rolling frame, the intermediate connecting part has a claw-shaped structure and a sleeve structure arranged coaxially, and the outer circle diameter of the claw-shaped structure is larger than the diameter of the sleeve structure;

[0018] The threaded hole is located at the end of the claw-shaped structure away from the sleeve structure;

[0019] The sleeve structure is fitted onto the outside of the first support rod.

[0020] Optionally, in the above-mentioned current bushing core rolling frame, the sleeve structure is connected to the first support rod by fasteners.

[0021] Optionally, in the above-mentioned current bushing core winding frame, the second connecting portion includes:

[0022] The second support rod has one end rotatably connected to the main body of the first support frame;

[0023] A plug structure is provided, which is connected to the other end of the second support rod and can be connected to the inner wall of the other end of the core rolled tube.

[0024] Optionally, in the above-mentioned current bushing core winding frame, the outer surface of the plug structure has a threaded structure that can engage with the inner wall thread at the other end of the core winding tube.

[0025] Optionally, in the above-mentioned current bushing core rolling frame, the end face of the plug structure has a disassembly and assembly structure for connecting disassembly and assembly tools;

[0026] And / or, the outer peripheral surface of the plug structure is provided with an auxiliary connection structure for connecting disassembly and assembly tools, the auxiliary connection structure being located on the side of the threaded structure away from the core rolled tube.

[0027] Optionally, the aforementioned current bushing core winding frame also includes a support roller for supporting and smoothing the paper.

[0028] Optionally, in the above-mentioned current bushing core winding frame, the idler roller is disposed on the first support frame.

[0029] As can be seen from the above technical solution, the current bushing core winding frame provided by the present invention, during the winding process of the current bushing core, first assembles the core winding tube of the current bushing core onto a first support frame. One end of the core winding tube is detachably connected to a first connecting portion of the first support frame, and the other end is detachably connected to a second connecting portion of the first support frame. A paper roll containing paper to be wound onto the core winding tube is then placed on a second support frame. The control system controls the first and / or second support frames accordingly, enabling the winding speed control unit to control the rotation speed of the core winding tube driven by the first support frame, thereby controlling the winding speed; the paper position control unit to control the relative position of the paper roll supported by the second support frame and the core winding tube supported by the first support frame, thereby controlling the paper position; and the tension control unit to control the paper tension between the paper roll and the core winding tube, thereby controlling the winding fit. Through the above configuration, the ease of winding the current bushing core is effectively improved, and the winding difficulty is effectively reduced. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of the rolling frame for the current bushing core provided in an embodiment of the present invention;

[0032] Figure 2 A partial structural schematic diagram of the first support frame provided in an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of the support component provided in an embodiment of the present invention;

[0034] Figure 4 For along Figure 3 Schematic diagram of the cross-sectional structure of the middle AA surface;

[0035] Figure 5 This is a schematic diagram of the plug structure provided in an embodiment of the present invention;

[0036] Figure 6 For along Figure 5 Schematic diagram of the cross-sectional structure of the middle BB surface;

[0037] Figure 7 for Figure 6 A magnified view of part C in the middle. Detailed Implementation

[0038] This invention discloses a rolling frame for current bushing cores to reduce the difficulty of rolling.

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] like Figure 1 and Figure 2 As shown, this embodiment of the invention provides a winding frame for a current bushing core, including a first support frame 100, a second support frame 200, and a control system 1. The first support frame 100 supports the core winding tube 8 of the current bushing core 3. The first support frame 100 has a first connecting part and a second connecting part. The first connecting part is detachably connected to one end of the core winding tube 8, and the second connecting part is detachably connected to the other end of the core winding tube 8. The second support frame 200 supports a paper roll 2. The control system 1 includes a winding speed control unit for controlling the rotation speed of the core winding tube 8 driven by the first support frame 100, a paper position control unit for controlling the relative position of the paper roll 2 supported by the second support frame 200 and the core winding tube 8 supported by the first support frame 100, and a tension control unit for controlling the paper tension between the paper roll 2 and the core winding tube 8.

[0041] The current bushing core winding frame provided in this embodiment of the invention, during the winding process of the current bushing core, first assembles the core winding tube 8 of the current bushing core 3 onto a first support frame 100. One end of the core winding tube 8 is detachably connected to a first connecting portion of the first support frame 100, and the other end of the core winding tube 8 is detachably connected to a second connecting portion of the first support frame 100. Furthermore, a paper roll 2 containing paper to be wound onto the core winding tube 8 is placed on a second support frame 200. Specifically, the control system 1 controls the first support frame 100 and / or the second support frame 200 accordingly. This allows the winding speed control unit to control the rotation speed of the core winding tube 8 driven by the first support frame 100, thus controlling the winding speed; the paper position control unit to control the relative position of the paper roll 2 supported by the second support frame 200 and the core winding tube 8 supported by the first support frame 100, thus controlling the paper position; and the tension control unit to control the paper tension between the paper roll 2 and the core winding tube 8, thus controlling the winding fit. These features effectively improve the ease of winding the current bushing core and significantly reduce the difficulty of winding.

[0042] Understandably, the control system 1 can control the paper to be wound onto the core winding tube 8 to form the current sleeve core 3. Specifically, the control system 1 can control relevant parameters of the current sleeve core winding frame, such as adjusting the tension of the paper wrapped on the core winding tube 8; the control system 1 can identify the winding thickness (e.g., the thickness of a single sheet of paper approximately 0.5 mm or the thickness of a single sheet of aluminum foil approximately 0.01 mm) and the number of paper winding layers (it can be one layer of paper and one layer of aluminum foil; the paper can be wound onto the core winding tube 8 by the paper roll 2 under the control of the control system 1, and the aluminum foil can be manually laid on the paper wound onto the core winding tube 8). Through corresponding control (e.g., controlling the number of paper winding layers), the winding diameter on the core winding tube 8 can be controlled so that the paper stops winding onto the core winding tube 8 after reaching the predetermined winding diameter. A cutting device capable of cutting the paper can also be provided. The winding speed control unit of the control system 1 can control the rotation speed of the core winding tube, thereby controlling the paper winding speed. The control system 1 may also include an indicator unit for indicating the position of the aluminum foil. The control system 1 can calculate the position of the aluminum foil on the paper wrapped on the core winding tube 8 based on the size of the aluminum foil. The indicator unit may be an infrared device that can emit infrared indicator lines, or a light-emitting device that can emit other indicator positions (light or shadow, etc.).

[0043] The current bushing core winding frame provided in this embodiment of the invention is particularly suitable for dry-type high-current bushing cores with large and short diameters.

[0044] like Figure 3 and Figure 4As shown, specifically, the first connecting part includes a first support rod 5, a support component 6, and screws 7. One end of the first support rod 5 is rotatably connected to the main body of the first support frame 100; the support component 6 has an intermediate connecting part 61 and a plurality of threaded holes 62 arranged circumferentially along the intermediate connecting part 61, the intermediate connecting part 61 is connected to the other end of the first support rod 5, and the axis of the threaded holes 62 is arranged radially along the first support rod 5; there are multiple screws 7, each corresponding to one of the threaded holes 62, one end of the screw 7 is threaded into the threaded hole 62, and the other end of the screw 7 is used to abut against the inner wall of one end of the core rolled tube 8.

[0045] It is understandable that by adjusting the relative position of the screw 7 and the threaded hole 62, the coaxiality of the core coil tube 8 and the first support rod 5 can be adjusted.

[0046] Furthermore, the support member 6 is a multi-claw support member, that is, the support member 6 also includes a support claw 63 with one end connected to the intermediate connecting part 61, the support claw 63 extends radially along the intermediate connecting part 61, and the other end of the support claw 63 has a threaded hole 62.

[0047] The intermediate connecting part 61 also has a plurality of first positioning holes 64 arranged along its axial direction, and the other end of the first support rod 5 has a plurality of second positioning holes. When the intermediate connecting part 61 is connected to the other end of the first support rod 5, the first positioning holes 64 and the second positioning holes can be set one-to-one. By using bolts or other connecting parts to pass through the first positioning holes 64 and the second positioning holes that are positioned therewith, and by using bolts or other connecting parts to position relative to the first positioning holes 64 and the second positioning holes, the intermediate connecting part 61 and the other end of the first support rod 5 can be effectively positioned and connected, ensuring that the intermediate connecting part 61 can rotate synchronously with the first support rod 5, so as to drive the core winding tube 8 to rotate.

[0048] Preferably, the support member 6 is a six-claw support member. The ends of its six claw-shaped structures have threaded holes.

[0049] The control system 1 may include a drive device connected to one end of the first support rod 5. Driven by the drive device, the first support rod 5 rotates, thereby causing the core winding tube 8 to rotate. In other words, the first support rod 5 can be a power transmission component for the rotation of the core winding tube 8.

[0050] In this embodiment, the first support rod 5 is preferably made of steel to ensure that the bending deflection of the first support rod 5 is small during the rolling process, thereby improving the stability of the core rolling tube 8 during rotation and thus improving the rolling direction.

[0051] The current bushing core rolling frame provided in this embodiment of the invention also includes a positioning nut that is threadedly engaged with the screw 7; the positioning nut is in positioning contact with at least one end face of the threaded hole.

[0052] Specifically, the screw 7 is provided with two positioning nuts, and the threaded hole in the middle connecting part is clamped between the two positioning nuts, which improves the positioning effect of the screw 7 along its axial direction.

[0053] Of course, you can also set only one positioning nut, which will not be described in detail here and is within the protection range.

[0054] In order to reduce the weight of the intermediate connection part while ensuring the connection effect, the intermediate connection part has a claw-shaped structure and a sleeve structure arranged coaxially. The outer diameter of the claw-shaped structure is larger than the diameter of the sleeve structure. The threaded hole is located at the end of the claw part of the claw-shaped structure away from the sleeve structure. The sleeve structure is sleeved on the outside of the first support rod 5.

[0055] The claw-shaped structure and the sleeve structure can be an integral structure (such as a cast-in-place or welded connection) or connected by connectors (such as bolts or clips).

[0056] Preferably, the sleeve structure is connected to the first support rod 5 by fasteners. The fasteners can be made of non-metallic materials to avoid rusting. Alternatively, the fasteners can be made of metallic materials.

[0057] Fasteners can be connecting components such as bolts, locating pins, or clips.

[0058] In the current bushing core rolling frame provided in the embodiments of the present invention, the second connecting part may have the same structure as the first connecting part, or the structure of the second connecting part may be different from that of the first connecting part.

[0059] In one embodiment, the structure of the second connecting part differs from that of the first connecting part. In this embodiment, the second connecting part includes a second support rod 10 and a plug structure 9. One end of the second support rod 10 is rotatably connected to the main body of the first support frame 100; the plug structure 9 is connected to the other end of the second support rod 10, and the plug structure 9 can be connected to the inner wall of the other end of the core winding tube 8.

[0060] Similarly, the second support rod 10 is preferably made of steel to ensure that the bending deflection of the second support rod 10 is small during the rolling process, thereby improving the stability of the core rolling tube 8 during rotation and thus improving the rolling direction.

[0061] like Figure 5 , Figure 6 and Figure 7As shown, the outer end face of the plug structure 9 has a plug connecting portion 90. The other end of the second support rod 10 can be fitted into the middle hole of the plug connecting portion 90. The plug connecting portion 90 has a first connecting through hole 94, and the other end of the second support rod 10 has a second connecting through hole. When the plug structure 9 is connected to the other end of the second support rod 10, the first connecting through hole 94 and the second connecting through hole are correspondingly set. By using bolts or other connecting parts to pass through the first connecting through hole 94 and the second connecting through hole, and by positioning the plug structure 9 with respect to the first connecting through hole 94 and the second connecting through hole, the other end of the second support rod 10 can be effectively positioned and connected, ensuring that the plug structure 9 can rotate synchronously with the second support rod 10.

[0062] Specifically, the outer surface of the plug structure 9 has a threaded structure 91 that can engage with the inner wall thread of the other end of the core rolled tube 8. That is, the connection between the core rolled tube 8 and the plug structure 9 can be achieved by rotating the core rolled tube 8 relative to the plug structure 9.

[0063] Preferably, the threaded structure 91 is adapted to the rotation direction of the core coiled tube 8. That is, taking a left-hand threaded structure 91 as an example, the plug structure 9 is connected to the core coiled tube 8 via a left-hand thread, and the core coiled tube 8 is connected to the plug structure 9 by rotating left relative to the plug structure 9. Furthermore, during the coiling operation using the current bushing core coiling frame provided in this embodiment, there is a relative movement tendency between the core coiled tube 8 and the plug structure 9, and the direction of this relative movement tendency is the same as the tightening direction of the core coiled tube 8 relative to the plug structure 9. Through the above settings, the reliability of the connection between the core coiled tube 8 and the plug structure 9 is ensured.

[0064] In this embodiment, the end face of the plug structure 9 has a disassembly and assembly structure 92 for connecting a disassembly and assembly tool. The disassembly and assembly tool is connected to the plug structure 9 through the disassembly and assembly structure 92. With the core rolled tube 8 fixed, the core rolled tube 8 can be disassembled relative to the second connecting part by twisting the plug structure 9 in the opposite direction.

[0065] In this embodiment, the disassembly and assembly structure 92 is preferably a threaded hole. Of course, the disassembly and assembly structure 92 can also be set as a protruding structure or a snap-fit ​​structure, depending on the disassembly and assembly tools, which will not be described in detail here.

[0066] The disassembly and assembly structure 92 can be located on the side of the plug structure 9 facing away from the first connecting part.

[0067] An auxiliary connection structure 93 can also be provided on the outer peripheral surface of the plug structure 9. The auxiliary connection structure 93 is located on the side of the threaded structure 91 away from the core rolled tube 8, so that the auxiliary connection structure 93 will not obstruct the threaded connection between the threaded structure 91 and the inner wall of the core rolled tube 8.

[0068] The auxiliary connection structure 93 can also be connected to a disassembly and assembly tool, and the disassembly and assembly of the plug structure 9 can be achieved by rotating the plug structure 9 through the disassembly and assembly tool.

[0069] Preferably, the outer peripheral surface of the plug structure 9 has a threaded structure 91, and the auxiliary connecting structure 93 protrudes outward from the outer peripheral surface of the plug structure 9. When the core rolled tube 8 and the plug structure 9 are tightened together, the auxiliary connecting structure 93 can make positioning contact with the end face of the core rolled tube 8 near the second support rod 10, thereby preventing the core rolled tube 8 and the plug structure 9 from continuing to twist relative to each other.

[0070] The current bushing core winding frame provided in this embodiment of the invention also includes a support roller 4 for supporting and smoothing the paper. During the winding process, the support roller 4 can be located between the core winding tube 8 and the paper roll 2.

[0071] To improve structural compactness, preferably, the idler roller 4 is mounted on the first support frame 100.

[0072] Alternatively, the idler roller 4 can be mounted on the second support frame 200. A third support frame, independent of the first support frame 100 and the second support frame 200, can also be provided, with the idler roller 4 mounted on the third support frame.

[0073] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0074] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rolling frame for a current bushing core, characterized in that, include: A first support frame (100) for supporting the core coiled tube (8) of the current bushing core (3) has a first connecting part and a second connecting part. The first connecting part is used to detachably connect to one end of the core coiled tube (8), and the second connecting part is used to detachably connect to the other end of the core coiled tube (8). A second support frame (200) for supporting the paper roll (2); The control system (1) includes a winding speed control unit that controls the rotation speed of the core winding tube (8) driven by the first support frame (100), a paper position control unit that controls the relative position of the paper roll (2) supported by the second support frame (200) and the core winding tube (8) supported by the first support frame (100), and a tension control unit that controls the paper tension between the paper roll (2) and the core winding tube (8). The first connecting part includes: The first support rod (5) has one end rotatably connected to the main body of the first support frame (100); Support component (6), the support component (6) has an intermediate connecting part and a plurality of threaded holes arranged circumferentially along the intermediate connecting part, the intermediate connecting part is connected to the other end of the first support rod (5), and the axis of the threaded holes is arranged radially along the first support rod (5); The screw (7) is provided in multiple ways and is provided in a one-to-one correspondence with the threaded hole. One end of the screw (7) is threaded into the threaded hole, and the other end of the screw (7) is used to abut against the inner wall of one end of the core rolled tube (8).

2. The winding frame for current bushing cores as described in claim 1, characterized in that, It also includes a positioning nut that is threadedly engaged with the screw (7); The positioning nut is in positioning contact with at least one end face of the threaded hole.

3. The winding frame for current bushing cores as described in claim 1, characterized in that, The intermediate connecting part has a claw-shaped structure and a sleeve structure arranged coaxially, and the outer diameter of the claw-shaped structure is larger than the diameter of the sleeve structure. The threaded hole is located at the end of the claw-shaped structure away from the sleeve structure; The sleeve structure is fitted onto the outside of the first support rod (5).

4. The winding frame for current bushing cores as described in claim 3, characterized in that, The sleeve structure is connected to the first support rod (5) by fasteners.

5. The winding frame for current bushing cores as described in claim 1, characterized in that, The second connecting part includes: The second support rod (10) has one end rotatably connected to the main body of the first support frame (100); A plug structure (9) is connected to the other end of the second support rod (10), and the plug structure (9) can be connected to the inner wall of the other end of the core rolled tube (8).

6. The winding frame for current bushing cores as described in claim 5, characterized in that, The outer surface of the plug structure (9) has a threaded structure (91) that can engage with the inner wall thread at the other end of the core rolled tube (8).

7. The winding frame for current bushing cores as described in claim 6, characterized in that, The end face of the plug structure (9) has a disassembly and assembly structure (92) for connecting disassembly and assembly tools. And / or, the outer peripheral surface of the plug structure (9) is provided with an auxiliary connection structure (93) for connecting disassembly and assembly tools, the auxiliary connection structure (93) being located on the side of the threaded structure (91) away from the core rolled tube (8).

8. The winding frame for current bushing cores as described in any one of claims 1-7, characterized in that, It also includes rollers (4) for supporting and smoothing the paper.

9. The winding frame for current bushing cores as described in claim 8, characterized in that, The idler roller (4) is mounted on the first support frame (100).

Images