CN104952609B - Planetary no-superconducting joint multi-bread coil winding machine - Google Patents

Abstract

A planetary multicake coil winding machine without superconducting joints, wherein a star winding shaft (1) is installed on a fixed stand (9). One end of the planetary drive (4) is installed below the star winding shaft (1), connected with the speed regulating motor (10) and driven by it. The planet winding shaft (2) is located at the other end of the planetary drive (4). One end of the satellite drive (5) is located at the lower end of the planetary winding shaft (2), and is driven by a motor on the planetary winding shaft (2). The satellite winding shaft (3) is located at the other end of the satellite drive (5). The star winding frame (6), the planet winding frame (7), and the satellite winding frame (8) are respectively located at the upper ends of the star winding shaft (1), the planet winding shaft (2), and the satellite winding shaft (3); (10) and controller (11) are installed on the fixed stand (9). The invention can wind high-temperature superconducting multi-cake coils without superconducting joints.

Description

Planetary non-superconducting joint multi-cake coil winding machine

technical field

The invention relates to a winding device for winding a superconducting coil, in particular to a winding device for winding a seamless multi-cake coil of a high-temperature superconducting strip.

Background technique

Superconducting magnets are wound from wires or strips made of superconducting materials, and high-temperature superconducting magnets are mostly wound from strips. Since the tape cannot be wound in layers like the wire, most of the magnets wound with high-temperature superconducting tape currently use the pie-shaped winding method. The coils wound by the pie winding method need to be connected together by superconducting joints. In the pie winding method, the double pie winding method is most commonly used. Compared with the single pie winding method, the double pie winding method can reduce the number of superconducting joints by half. The winding machine for winding double-cake coils consists of two fixed winding shafts and related supporting transmission mechanisms. When winding, the center of the strip is fixed at the center of a winding frame, and the coil is fixed on another winding shaft, and the two winding shafts rotate in the same direction to complete the winding of a cake, and then repeat the process , complete the winding of another pie.

However, the number of superconducting joints of the coil wound by the double pie winding method will still be half that of the single pie coil. The fabrication of superconducting joints requires high technical requirements and there is a risk of failure. At the current technical level, the resistance of a high-temperature superconducting joint is about 10 ^-7 ohms. Since the operating current of the high-temperature superconducting coil is generally as high as hundreds of amperes, a large amount of heat energy will be generated on the superconducting joint, which will consume the electromagnetic energy in the magnet. More seriously, these thermal energy may affect the stability of the magnet operation, and may even cause the magnet to quench. Therefore, a new type of winding machine suitable for winding high temperature superconducting strips is needed, and a new winding method is adopted to avoid the use of superconducting joints.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art, and propose a winding machine for winding high-temperature superconducting multi-cake coils without superconducting joints.

A planetary multi-cake coil winding machine without superconducting joints, including a star winding shaft, a planet winding shaft, a satellite winding shaft, a planetary drive, a satellite drive, a star winding frame, a planetary winding frame, and a satellite winding frame , fixed platform, speed regulating motor and controller. The star winding shaft is installed on the fixed stand. One end of the planetary drive is fixed on the lower end of the star winding shaft, connected with the speed regulating motor and driven by the speed regulating motor. The planetary winding shaft is located at the other end of the planetary drive. One end of the satellite drive is located at the lower end of the planet winding shaft, driven by a motor on the planet winding shaft. The satellite winding shaft is located at the other end of the satellite drive. The star winding skeleton is located at the upper end of the star winding shaft, the planet winding skeleton is located at the upper end of the planet winding shaft, and the satellite winding skeleton is located at the upper end of the satellite winding shaft; the speed regulating motor and the controller are installed on the fixed platform. The controller is connected with the speed-regulating motor, the motor on the planet winding shaft and the motor on the satellite winding shaft through electrical lines.

The winding machine for winding high-temperature superconducting multi-cake coils without superconducting joints is characterized in that the star winding shaft is fixed and does not rotate, the planetary winding shaft is driven by a planetary drive to revolve around the star winding shaft, and the satellite winding shaft is driven by The satellite drive drives the revolving axis around the planet. The planet winding shaft and the satellite winding shaft are driven by the motor installed at the bottom to rotate, and the direction of rotation is opposite to the revolution; the upper and lower positions of the star winding frame, the planet winding frame and the satellite winding frame can be adjusted as required. The controller controls the rotational speeds of the speed-regulating motor, the motor on the planet winding shaft and the motor on the satellite winding shaft through the electric circuit.

The star winding bobbin and the planet winding bobbin are the winding bobbins used to wind the double cake coil, and the gap between the end plates at both ends is slightly larger than twice the width of the high temperature superconducting tape; the satellite winding bobbin is used for winding For the winding skeleton of the single cake coil, the gap between the end plates at both ends is slightly larger than the width of the high temperature superconducting strip.

The working process of the winder for winding the seamless multi-cake coil of high-temperature superconducting strip is as follows:

1) Calculate the total length of the required high-temperature superconducting strip and the length of each pie coil according to the number of pies of the wound coil and the number of turns of each pie, and mark the length of each pie coil on the strip As a reference when winding.

2) All the strips are wound on the star winding frame in the form of double pie coils.

3) Wind a single cake coil on the satellite winding skeleton. At the beginning of winding, fix the lower end of the double cake coil on the star winding frame to the satellite winding frame. During the winding process, the satellite winding axis revolves around the star winding axis and rotates in the opposite direction. The wound single-cake coil is directly connected to the double-cake coil on the star winding frame, and there is no superconducting joint.

4) A single cake coil is wound on the upper end of the planetary winding skeleton. During the winding process, the planet winding shaft revolves around the star winding shaft and revolves, and the revolution direction is opposite to the rotation; the satellite winding shaft revolves around the planet winding shaft at the cycle of the planet winding shaft rotation.

5) Wind a single cake coil at the lower end of the planetary winding skeleton. During the winding process, the planetary winding shaft stops revolution and rotation, and the satellite winding shaft revolves around the planetary winding shaft and rotates. The rotation direction is opposite to the revolution, and the single cake coil on the satellite winding frame is transferred to the planetary winding frame.

6) A double pie coil is formed on the planetary winding frame, which is directly connected to the double pie coil on the star winding frame, without superconducting joints. Installing two double pie coils can form a four pie coil without superconducting joints.

7) Repeat steps 3 to 6 to wind coils with any number of cakes.

The invention can use high-temperature superconducting strips to wind multi-cake superconducting coils without superconducting joints. The invention can not only reduce the energy loss caused by the superconducting joint, but also avoid the instability caused by Joule heat at the superconducting joint and the possibility of magnet quenching. In addition, the fabrication of superconducting joints can be omitted, and the manufacturing process of the coil can be simplified. Therefore, the safety and economy of high-temperature superconducting magnets, an expensive device, are greatly improved.

Description of drawings

Fig. 1 is the appearance schematic diagram of winding machine of the present invention;

Fig. 2 unloads fixed platform for the winding machine of the present invention, speed-regulating motor, the upper part structural representation of controller;

Fig. 3 is a schematic diagram of the winding state of the multi-cake coil by the winding machine of the present invention, in which the fixed stand, the speed regulating motor, the controller, and the high-temperature superconductor strip are removed as shown in the figure;

In the figure, 1 star winding shaft, 2 planet winding shaft, 3 satellite winding shaft, 4 planetary drive, 5 satellite drive, 6 star winding skeleton, 7 planet winding skeleton, 8 satellite winding skeleton, 9 fixed stand , 10 speed-regulating motors, 11 controllers, 12 high-temperature superconducting strips.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

The invention is a winding machine for winding high-temperature superconducting multi-cake coils without superconducting joints, including a star winding shaft 1, a planet winding shaft 2, a satellite winding shaft 3, a planetary drive 4, a satellite drive 5, and a star winding shaft Skeleton 6 , planet winding skeleton 7 , satellite winding skeleton 8 , fixed stand 9 , speed regulating motor 10 , and controller 11 . The star winding shaft 1 is located on the fixed stand 9 . One end of the planetary transmission 4 is fixed on the lower end of the planetary winding shaft 1 , connected to and driven by the speed regulating motor 10 ; the planetary winding shaft 2 is located at the other end of the planetary transmission 4 . One end of the satellite drive 5 is located at the lower end of the planetary winding shaft 2, driven by a motor on the planetary winding shaft 2; the satellite winding shaft 3 is located at the other end of the satellite drive 5. The star winding skeleton 6 is positioned at the upper end of the star winding shaft 1 , the planet winding skeleton 7 is positioned at the upper end of the planet winding shaft 2 , and the satellite winding skeleton 8 is positioned at the upper end of the satellite winding shaft 3 . The speed-regulating motor 10 and the controller 11 are installed on the fixed platform 9; the controller 11 and the speed-regulating motor 10, the motor on the planetary winding shaft 2 and the motor on the satellite winding shaft 3 are connected by electrical lines.

When the winding machine of the present invention works, the star winding shaft 1 is fixed and does not rotate, the planet winding shaft 2 is driven by the planetary drive 4 to revolve around the star winding shaft 1, and the satellite winding shaft 3 is driven by the satellite drive 5 to revolve around the planet winding shaft 2; The planet winding shaft 2 and the satellite winding shaft 3 are driven by a motor installed in their lower parts to rotate, and the direction of rotation is opposite to the revolution. The upper and lower positions of the star winding skeleton 6, the planet winding skeleton 7 and the satellite winding skeleton 8 can be adjusted as required. The controller 11 can control the speed of the speed-regulating motor 10 , the motor on the planet winding shaft 2 and the motor on the satellite winding shaft 3 through the electric circuit.

The star winding bobbin 6 and the planet winding bobbin 7 are the winding bobbins used to wind the double cake coil, and the gap between the end plates at both ends is slightly larger than twice the width of the high temperature superconducting strip; the satellite winding bobbin 8 is used For the winding skeleton of the single-cake coil, the gap between the end plates at both ends is slightly larger than the width of the high-temperature superconducting strip.

The method for using the wire winder for winding a seamless multi-cake coil of high-temperature superconducting tape comprises the following steps:

1) Calculate the total length of the high-temperature superconducting strip and the length of each pie-shaped coil according to the number of pies of the wound coil and the number of turns of each pie, and mark the length of each pie-shaped coil on the strip as Reference when winding;

2) All the strips are wound on the star winding frame 6 in the form of a double pie coil;

3) A single cake coil is wound on the satellite winding skeleton 8 . When winding starts, the outgoing line of the double pie coil lower end on the star winding frame 6 is fixed on the satellite winding frame 8; the satellite winding shaft 3 revolves around the star winding shaft 1 and rotates in the opposite direction during winding. The single pie coil is directly connected to the double pie coil on the star winding skeleton 6, and there is no superconducting joint.

4) Use the upper end of the planetary winding skeleton 7 to wind a single cake coil. During the winding process, the planet winding shaft 2 rotates and revolves around the star winding shaft 1, and the revolution direction is opposite to the rotation direction; the satellite winding shaft 3 revolves around the planet winding shaft 2 at the cycle of the planet winding shaft 2 rotation.

5) Use the lower end of the planetary winding skeleton 7 to wind a single cake coil. During the winding process, the planetary winding shaft 2 stops revolution and rotation, the satellite winding shaft 3 revolves around the planetary winding shaft 2 and rotates, the direction of rotation is opposite to the revolution, and the single cake coil on the satellite winding frame 8 is transferred to the planetary winding frame 7 superior.

6) A double pie coil is formed on the planetary winding frame 7, which is directly connected to the double pie coil on the star winding frame 6, without superconducting joints. Installing two double pie coils can form a four pie coil without superconducting joints.

7) Repeat steps 3 to 6 to wind coils with any number of cakes.

Claims (3)

1. a kind of planetary without many cake coil winders of superconducting joint, it is characterised in that：Described coil winding machine includes fixed star coiling Axle (1), planet roll (2), satellite roll (3), planetary drive transmission (4), satellite driver (5), fixed star bobbin (6), planet bobbin (7), satellite bobbin (8), fixed rack (9), buncher (10), and controller (11)； Fixed star roll (1) is installed on fixed rack (9)；One end of planetary drive transmission (4) is fixed under fixed star roll (1) End, planetary drive transmission (4) are connected with buncher (10) and are driven by buncher (10)；Planet roll (2) is positioned at planet The other end of driver (4)；One end of satellite driver (5) is located at the lower end of planet roll (2), by installed in planet coiling Motor on axle (2) drives；Satellite roll (3) is installed on the other end of satellite driver (5)；Fixed star bobbin (6) position In the upper end of fixed star roll (1)；Upper end of the planet bobbin (7) positioned at planet roll (2)；Satellite bobbin (8) Positioned at the upper end of satellite roll (3)；Described fixed star bobbin (6) and planet bobbin (7) are for the double cakes of coiling The bobbin of coil, the space between fixed star bobbin (6) and planet bobbin (7) two ends end plate are slightly larger than high-temperature superconductor The twice of strip width；Satellite bobbin (8) is the bobbin for coiling list cake coil, and the space between the end plate of two ends is omited More than high-temperature superconductor band width；Buncher (10) and controller (11) are installed on fixed rack (9), controller (11) and The motor on motor and satellite roll (3) on buncher (10), planet roll (2) is connected by electric wiring.

2. according to claim 1 planetary without many cake coil winders of superconducting joint, it is characterised in that：Described fixed star Roll (1) maintain static it is dynamic, planet roll (2) by planetary drive transmission (4) drive around fixed star roll (1) revolution, defend Star roll (3) is driven by satellite driver (5) and is revolved round the sun around planet roll (2)；Planet roll (2), satellite roll (3) being driven by the motor installed in its underpart carries out rotation, and sense of rotation and revolution are in opposite direction；Fixed star bobbin (6), OK The upper-lower position of star bobbin (7) and satellite bobbin (8) can be adjusted；Controller (11) is adjusted by electric wiring control The rotating speed of the motor on motor and satellite roll (3) on speed motor (10), planet roll (2).

3. according to planetary without many cake coil winders of superconducting joint described in claim 1 or 2, it is characterised in that：Described Process of the coil winding machine coiling without many cake coils of superconducting joint is as follows：

1) the high-temperature superconductor band total length and each cake formula according to needed for the cake number of institute's coiling and the turns calculations of each cake The length of coil, and the length of each disk-type winding is demarcated on band as reference during coiling；

2) whole bands are wound on fixed star bobbin (6) in the form of double-cake coils；

3) the single cake coil of coiling one on satellite bobbin (8)；Double cake lines when coiling starts on fixed star bobbin (6) Satellite bobbin (8) is fixed in the outlet of circle lower end；Coiling Satellite roll (3) is revolved round the sun simultaneously around fixed star roll (1) Rotation in the opposite direction；Double-cake coils on single cake coil and fixed star bobbin (6) are joined directly together, and there is no superconduction and connect Head；

4) using the single cake coil of upper end coiling one of planet bobbin (7)；In winding process, planet roll (2) is around perseverance (1) rotation of star roll is simultaneously revolved round the sun, and revolution direction and sense of rotation are contrary；Satellite roll (3) around planet roll (2) with Planet roll (2) revolved round the sun from cycle turnover；

5) using the single cake coil of lower end coiling one of planet bobbin (7)；In winding process, planet roll (2) stops public Turn and rotation, satellite roll (3) around planet roll (2) revolution and rotation, sense of rotation and revolution conversely, by satellite around Single cake coil on line skeleton (8) is transferred on planet bobbin (7)；

6) the direct phase of double-cake coils on a double-cake coils, and fixed star bobbin (6) is formed on planet bobbin (7) Even, without the need for superconducting joint；Two double-cake coils are installed, you can form a four cake coils without superconducting joint；7) weight Multiple step 3 arrives step 6, the coil of any cake number of coiling.