Gelling equipment and gelling method for doubly-fed generator stator coil

Abstract

The invention discloses gelling equipment and gelling method for a stator coil of a doubly-fed generator, and relates to the technical field of doubly-fed generators. The gelling equipment comprises a profiling device for shaping the shape of the stator coil; the profiling device comprises a supporting frame, a first sliding rod, a second sliding rod, a first sliding seat, a second sliding seat, a first pressing block and a second pressing block, wherein the first sliding rod and the second sliding rod are arranged on the supporting frame in a sliding mode in the first direction, the first sliding seat and the second sliding seat are correspondingly arranged on the first sliding rod and the second sliding rod in a sliding mode in the second direction, and the first pressing block and the second pressing block are correspondingly arranged on the first sliding seat and the second sliding seat. The lengths of the first pressing block and the second pressing block can be randomly adjusted according to the length of the linear section of the stator coil; by randomly adjusting the positions of the first pressing block and the second pressing block in the first direction and the second direction, stator coils with different lengths and different widths are pressed, so that the size of the profiling device can be changed along with the size change of the stator coils, the profiling device does not need to be frequently replaced, time and labor are saved, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of doubly-fed generators, and in particular to a gelling device and a gelling method for stator coils of a doubly-fed generator. Background Art

[0002] Doubly-fed generators have been widely used in megawatt-class wind turbines due to their excellent grid-connected performance, wide speed adjustment range, and efficient power factor adjustment capabilities. As a core component, the inter-turn bonding process plays an irreplaceable and key role in the manufacturing process of the stator coil. Inter-turn bonding is a process that thermosettingly bonds flat copper wires wrapped with multiple layers of mica tape by precisely controlling the temperature and applying specific pressure to form a composite structure with excellent mechanical strength and electrical insulation performance.

[0003] Under the dual effects of alternating electromagnetic force and mechanical vibration of the unit, long-term stress accumulation will cause the residual gaps in the inter-turn insulation layer of the stator coil to continue to expand, resulting in a significant decrease in the inter-turn dielectric strength, thereby causing partial discharge and eventually causing insulation failure. Therefore, the quality of the inter-turn gelation process directly affects the risk of inter-turn breakdown of the stator coil of the doubly fed generator.

[0004] Considering that artificial inter-turn glueing will inevitably leave gaps in a small number of inter-turn insulation layers, the existing stator coils are mostly glued with the help of cold pressing machines. However, due to the limitations of the existing technical level, special molds need to be prepared for stator coils of different specifications. The size of the special mold cannot be flexibly adjusted as the motor capacity increases. The special mold needs to be frequently loaded and unloaded, the labor intensity is too high, and the production efficiency is low. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a gelling device and a gelling method for the stator coil of a doubly fed generator. By optimizing the structure of the pressing device, the size of the pressing device can change with the change of the size of the stator coil, thereby solving the technical problem of low production efficiency caused by the inability of existing special molds to adapt to stator coils of different sizes.

[0006] To achieve the above object, the present invention provides a gelling device for a stator coil of a doubly-fed generator, comprising a profiling device for shaping the stator coil; the profiling device comprises:

[0007] Support frame;

[0008] A first sliding rod and a second sliding rod respectively slidably disposed on the support frame along a first direction;

[0009] A first sliding seat and a second sliding seat respectively slidably arranged on the first sliding rod and the second sliding rod along a second direction;

[0010] A first pressing block and a second pressing block are respectively arranged on the first sliding seat and the second sliding seat;

[0011] Among them, the first direction is perpendicular to the second direction, and the first pressure block and the second pressure block are both spliced ​​structures; when the first pressure block and the second pressure block are spliced ​​to a set length, the positions of the first pressure block and the second pressure block are correspondingly adjusted along the second direction by adjusting the first slide and the second slide so that the two are respectively aligned with the straight line segments on both sides of the stator coil, and then the positions of the first pressure block and the second pressure block are correspondingly adjusted along the first direction by the first slide bar and the second slide bar so that the two maintain a set distance.

[0012] In some embodiments, the profiling device further comprises:

[0013] A first pressing plate slidably disposed on the first sliding seat along a first direction and used to support the first pressing block;

[0014] A second pressing plate slidably disposed on the second sliding seat along a first direction and used to support the second pressing block;

[0015] A first pressing cylinder fixedly mounted on the first slide and connected to the first pressing plate;

[0016] A second pressing cylinder fixedly mounted on the second slide seat and connected to the second pressing plate;

[0017] A control device connected to the first press-fitting cylinder and the second press-fitting cylinder respectively;

[0018] When the control device obtains the actual width and height of a single coil of the stator coil, the control device synchronously adjusts the current pressing pressures of the first pressing cylinder and the second pressing cylinder until the current pressing pressures correspond to the actual width and height of the single coil respectively.

[0019] In some embodiments, the first pressing block includes a plurality of first assembling blocks stacked along the second direction, a first clamping plate is fixedly provided on one side of the first pressing plate, a first clamping protrusion is formed on one side of each first assembling block, and the first clamping protrusion is clamped and matched with a first clamping groove provided on the first clamping plate;

[0020] The second pressing block includes a plurality of second assembling blocks stacked along a second direction, a second clamping plate is fixedly provided on one side of the second pressing plate, a second clamping protrusion is formed on one side of each second assembling block, and the second clamping protrusion is clamped and matched with a second clamping groove provided on the second clamping plate.

[0021] In some embodiments, the profiling device further comprises:

[0022] A first transmission assembly connected to the first slide;

[0023] A first driving motor connected to the first transmission assembly and used to drive the first slide seat to slide along the first slide rod through the first transmission assembly to drive the first pressing block to slide;

[0024] a second transmission assembly connected to the second slide;

[0025] A second driving motor connected to the second transmission assembly and used to drive the second slide seat to slide along the second slide rod through the second transmission assembly to drive the second pressing block to slide;

[0026] The first drive motor and the second drive motor are respectively connected to the control device;

[0027] When the control device obtains the actual outer ring length, the actual inner ring width and the actual width of a single coil of the stator coil, the control device starts the first drive motor and the second drive motor to adjust the positions of the first slide and the second slide accordingly along the second direction until the first pressure block and the second pressure block are respectively aligned with the straight line segments on both sides of the stator coil.

[0028] In some embodiments, the profiling device further comprises:

[0029] a third transmission assembly connected to the first slide bar and the second slide bar respectively;

[0030] A third driving motor connected to the third transmission assembly and used to drive the first slide bar and the second slide bar to slide relative to each other through the third transmission assembly;

[0031] The third drive motor is connected to the control device;

[0032] When the control device obtains the actual inner circle width of the stator coil and the actual width of a single coil, the control device starts the third drive motor to adjust the positions of the first slide bar and the second slide bar accordingly along the first direction until the first pressing block and the second pressing block reach a set distance.

[0033] In some embodiments, the profiling device further comprises:

[0034] A first guide rod and a second guide rod respectively fixed to the support frame and parallel to each other;

[0035] Both ends of the first sliding rod and the second sliding rod are slidably matched with the first guide rod and the second guide rod respectively.

[0036] In some embodiments, it also includes a scanning device for scanning the stator coil to obtain image information of the stator coil. The scanning device is connected to the control device. The scanning device is used to send the image information to the control device. The control device obtains the actual width of a single coil, the actual height of a single coil, the actual outer circle length, the actual inner circle width and the straight line segment length by processing the image information.

[0037] In some embodiments, it also includes:

[0038] A drying device located between the feeding area and the pressing device;

[0039] The suspension track passes through the loading area, drying device, pressing device and unloading area in sequence;

[0040] A suspension frame can be slidably arranged on the suspension track and used for suspending the stator coil.

[0041] In some embodiments, it also includes:

[0042] A speed detection device for detecting the current moving speed of the suspension frame;

[0043] A suspension drive motor connected to a support roller provided on the suspension frame and used to drive the support roller to roll along the suspension track;

[0044] The speed detection device and the suspension drive motor are both connected to the control device;

[0045] When the control device obtains the set drying time of the stator coil in the drying device, the control device adjusts the current moving speed of the suspension frame by adjusting the power of the suspension drive motor until the current moving speed reaches the set moving speed, and the set moving speed matches the set drying time.

[0046] The present invention also provides a method for gelling a stator coil of a doubly-fed generator, which is applied to the gelling device for the stator coil of the doubly-fed generator, and the steps include:

[0047] Adjust the positions of the first pressing block and the second pressing block of the pressing device in advance according to the size of the stator coil, so that the first pressing block and the second pressing block are respectively aligned with the straight line segments on both sides of the stator coil and keep a set distance between them;

[0048] When the suspension frame moves along the suspension track to the loading area, the stator coil is installed on the suspension frame;

[0049] When the stator coil moves from the loading area to the drying device along with the hanging frame, the stator coil stays in the drying device for the set drying time;

[0050] When the stator coil moves from the drying device to the pressing device along with the hanging frame, the first pressing block and the second pressing block together press the stator coil into a shuttle-shaped structure;

[0051] The stator coil moves with the suspension frame from the press device to the unloading area.

[0052] Compared with the background technology, the gelling equipment for the stator coil of the doubly fed generator provided by the present invention optimizes the structure of the press device. The optimized press device includes a support frame, a first slide bar, a second slide bar, a first slide seat, a second slide seat, a first press block and a second press block. The first slide bar and the second slide bar are slidably arranged on the support frame along the first direction, respectively, the first slide seat and the second slide seat are slidably arranged on the first slide bar and the second slide bar along the second direction, respectively, and the first press block and the second press block are correspondingly arranged on the first slide seat and the second slide seat.

[0053] When press-fitting the stator coil, first assemble the first pressure block and the second pressure block until the first pressure block and the second pressure block are spliced ​​to a set length; then adjust the first slide seat and the second slide seat respectively along the second direction, and adjust the positions of the first pressure block and the second pressure block accordingly along the second direction to ensure that the first pressure block and the second pressure block are respectively aligned with the straight line segments on both sides of the stator coil; finally, adjust the first slide bar and the second slide bar respectively along the first direction, and adjust the positions of the first pressure block and the second pressure block accordingly along the first direction with the help of the first slide seat and the second slide seat to ensure that the first pressure block and the second pressure block maintain a set spacing.

[0054] On the one hand, the lengths of the first pressing block and the second pressing block in the present invention can be adjusted arbitrarily according to the length of the straight section of the stator coil; on the other hand, the present invention can press-fit stator coils of different lengths and widths by arbitrarily adjusting the positions of the first pressing block and the second pressing block in the first direction and the second direction, so that the size of the pressing device can change with the change of the size of the stator coil, and there is no need to frequently replace the pressing device due to changes in the size of the stator coil, which saves time and effort and effectively improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0056] Figure 1 A schematic diagram of a medium-pressure device of a gelling device for a stator coil of a doubly-fed generator provided in a specific embodiment of the present invention;

[0057] Figure 2 A schematic diagram of a gelling device for a stator coil of a doubly-fed generator provided in a specific embodiment of the present invention;

[0058] Figure 3 A schematic diagram of a stator coil press-assembled by a gelling device for a doubly-fed generator stator coil provided in a specific embodiment of the present invention.

[0059] The reference numerals are as follows:

[0060] Stator coil 1, profiling device 2, loading area 3, drying device 4, unloading area 5, hanging track 6 and hanging frame 7;

[0061] Straight line segment 101;

[0062] Support frame 201, first slide bar 202, second slide bar 203, first slide seat 204, second slide seat 205, first pressing block 206, second pressing block 207, first pressing plate 208, second pressing plate 209, first drive motor 210, second drive motor 211, third drive motor 212 and first guide rod 213;

[0063] First assembly block 2061;

[0064] The second assembly block 2071;

[0065] The actual outer circle length A, the actual inner circle width B, the actual width of a single coil C, the actual height of a single coil D and the length of the straight line segment E. DETAILED DESCRIPTION

[0066] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0067] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0068] The embodiment of the present invention discloses a gelling device for a doubly-fed generator stator coil, comprising a pressing device 2 for shaping the stator coil 1. As a preferred embodiment, the pressing device 2 shapes the stator coil 1 into a shuttle-shaped structure by pressing the two ends of the stator coil 1, as shown in the attached figure. Figure 1 and 3 The shuttle-shaped structure here is formed by two arc segments and two straight line segments 101 connected alternately.

[0069] As attached Figure 1As shown, the press device 2 includes a support frame 201, a first slide bar 202, a second slide bar 203, a first slide seat 204, a second slide seat 205, a first pressing block 206 and a second pressing block 207, wherein the support frame 201 is provided with a hook for hanging the stator coil 1. The first slide bar 202 and the second slide bar 203 are slidably arranged on the support frame 201 along the first direction, that is, both the first slide bar 202 and the second slide bar 203 make linear motion relative to the support frame 201 along the first direction. The first slide seat 204 and the second slide seat 205 are slidably arranged on the first slide bar 202 and the second slide bar 203 along the second direction, that is, the first slide seat 204 is slidably arranged on the first slide bar 202 along the second direction, and the second slide seat 205 is slidably arranged on the second slide bar 203 along the second direction. The first pressing block 206 and the second pressing block 207 are respectively arranged on the first slide 204 and the second slide 205, that is, the first pressing block 206 is arranged on the first slide 204, and the first pressing block 206 slides synchronously with the first slide 204; the second pressing block 207 is arranged on the second slide 205, and the second pressing block 207 slides synchronously with the second slide 205.

[0070] As attached Figure 1 As shown, the first direction and the second direction are perpendicular to each other. Figure 1 For example, the X-axis in the drawings refers to the first direction, which is specifically the width direction of the designated sub-coil 1 ; the Y-axis in the drawings refers to the second direction, which is specifically the length direction of the designated sub-coil 1 .

[0071] The first pressing block 206 and the second pressing block 207 are both spliced ​​structures, that is, the lengths of the first pressing block 206 and the second pressing block 207 can be adjusted at will.

[0072] When the stator coil 1 is press-fitted, the first pressing block 206 and the second pressing block 207 are first assembled until the first pressing block 206 and the second pressing block 207 are spliced ​​to a set length, ensuring that the lengths of the first pressing block 206 and the second pressing block 207 are consistent with the length E of the straight line segments 101 on both sides of the stator coil 1; then the first slide 204 and the second slide 205 are respectively adjusted along the second direction, the first pressing block 206 slides synchronously up and down along the first slide bar 202 with the first slide 204, and the second pressing block 207 slides synchronously up and down along the second slide bar 203 with the second slide 205, so that the positions of the first pressing block 206 and the second pressing block 207 can be adjusted accordingly along the second direction by adjusting the first slide 204 and the second slide 205. The first pressing block 206 and the second pressing block 207 are respectively aligned with the straight line segments 101 on both sides of the stator coil 1, so as to prepare for the first pressing block 206 and the second pressing block 207 to squeeze the straight line segment 101 of the stator coil 1; finally, the first slide bar 202 and the second slide bar 203 are respectively adjusted along the first direction, the first slide bar 202 drives the first slide 204 and the first pressing block 206 to slide synchronously along the first direction, and the second slide bar 203 drives the second slide 205 and the second pressing block 207 to slide synchronously along the second direction, so that the positions of the first pressing block 206 and the second pressing block 207 can be correspondingly adjusted along the first direction with the help of the first slide 204 and the second slide 205, so as to ensure that the first pressing block 206 and the second pressing block 207 maintain a set spacing. The set spacing in the text specifically refers to the width of the shuttle core structure.

[0073] In summary, the present invention optimizes the structure of the pressing device 2. On the one hand, the lengths of the first pressing block 206 and the second pressing block 207 can be arbitrarily adjusted according to the length of the straight section 101 of the stator coil 1. On the other hand, by arbitrarily adjusting the positions of the first pressing block 206 and the second pressing block 207 in the first direction and the second direction, stator coils 1 of different lengths and widths can be pressed and assembled, so that the size of the pressing device 2 can change with the change of the size of the stator coil 1. There is no need to frequently replace the pressing device 2 due to changes in the size of the stator coil 1, which saves time and effort and effectively improves production efficiency.

[0074] As a preferred embodiment, the pressing device 2 also includes a first pressing plate 208, a second pressing plate 209, a first pressing cylinder and a second pressing cylinder, wherein the first pressing plate 208 is slidably disposed on the first slide 204 along a first direction, the first pressing block 206 is mounted on the first pressing plate 208, the first pressing plate 208 is used to support the first pressing plate 208, the first pressing cylinder is fixedly disposed on the first slide 204 and is fixedly connected to the first pressing plate 208, and is used to drive the first pressing plate 208 to drive the first pressing block 206 to move along the first direction, thereby ensuring that the first pressing cylinder provides sufficient pressing pressure for the first pressing block 206 to extrude the stator coil 1. Similarly, the second pressing plate 209 is slidably disposed on the second slide 205 along the first direction, the second pressing block 207 is mounted on the second pressing plate 209, the second pressing plate 209 is used to support the second pressing plate 209, the second pressing cylinder is fixedly disposed on the second slide 205 and is fixedly connected to the second pressing plate 209, and is used to drive the second pressing plate 209 to drive the second pressing block 207 to move along the first direction, ensuring that the second pressing cylinder provides the second pressing block 207 with sufficient pressing pressure to extrude the stator coil 1. The first pressing cylinder and the second pressing cylinder can both be cylinders, and the pressing pressures of the first pressing cylinder and the second pressing cylinder can be adjusted according to the actual width C and actual height D of a single coil of the stator coil 1.

[0075] The pressing device 2 further comprises a control device connected to the first pressing cylinder and the second pressing cylinder respectively.

[0076] When the control device obtains the actual width C of a single coil and the actual height D of a single coil of the stator coil 1, the control device automatically and synchronously adjusts the current pressing pressure of the first pressing cylinder and the second pressing cylinder through processing and calculation until the current pressing pressure corresponds to the actual width C of a single coil and the actual height D of a single coil, respectively. That is, the pressing pressure of the first pressing cylinder and the second pressing cylinder in the present invention can automatically change with the actual width C of a single coil and the actual height D of a single coil of the stator coil 1, so that the first pressing cylinder and the second pressing cylinder can adapt to stator coils 1 of different specifications, and there is no need to frequently replace the pressing device 2 due to the single coil of the stator coil 1 being too thick or too thin, which saves time and effort and is conducive to improving production efficiency.

[0077] It should be supplemented that, after obtaining the actual width C of a single coil and the actual height D of a single coil of the stator coil 1, the processing and calculation process of the control device includes determining whether the current pressing pressures of the first pressing cylinder and the second pressing cylinder match the actual width C of a single coil and the actual height D of a single coil of the stator coil 1. If so, the current pressing pressure is maintained; if not, the set pressing pressure that matches the actual width C of a single coil and the actual height D of a single coil is retrieved, and the current pressing pressures of the first pressing cylinder and the second pressing cylinder are adjusted to the set pressing pressure.

[0078] As a preferred embodiment, the first pressing block 206 includes a plurality of first assembling blocks 2061 stacked along the second direction, a first clamping plate is fixedly provided on one side of the first pressing plate 208, a first clamping protrusion is formed on one side of each first assembling block 2061, and the first clamping protrusion is clamped and matched with the first clamping groove provided on the first clamping plate, so as to facilitate the disassembly and assembly of the first assembling block 2061, and the operation is more time-saving and labor-saving, and the efficiency is higher. Similarly, the second pressing block 207 includes a plurality of second assembling blocks 2071 stacked along the second direction, a second clamping plate is fixedly provided on one side of the second pressing plate 209, a second clamping protrusion is formed on one side of each second assembling block 2071, and the second clamping protrusion is clamped and matched with the second clamping groove provided on the second clamping plate, which can also improve the efficiency. Of course, the structures of the first pressing block 206 and the second pressing block 207 are not limited to this. To improve reliability, stop plates may be provided at both ends of the first pressure block 206 and the second pressure block 207, which can not only limit the positions of the first pressure block 206 and the second pressure block 207 in the second direction, but also clamp the first pressure block 206 and the second pressure block 207 to prevent them from loosening.

[0079] As a preferred embodiment, the press device 2 further includes a first transmission assembly, a first drive motor 210, a second transmission assembly and a second drive motor 211. One end of the first transmission assembly is connected to the first slide 204 and the other end thereof is connected to the first drive motor 210, so that the first drive motor 210 drives the first slide 204 through the first transmission assembly to drive the first pressing block 206 to slide along the first slide bar 202, and adjust the position of the first pressing block 206 along the second direction. One end of the second transmission assembly is connected to the second slide 205 and the other end thereof is connected to the second drive motor 211, so that the second drive motor 211 drives the second slide 205 through the second transmission assembly to drive the second pressing block 207 to slide along the second slide bar 203, and adjust the position of the second pressing block 207 along the second direction. Preferably, the first pressing block 206 and the second pressing block 207 are symmetrically arranged.

[0080] The first transmission assembly and the second transmission assembly are preferably a screw nut pair, which has high transmission accuracy, ensuring that the first pressure block 206 and the second pressure block 207 move accurately, and can accurately align the straight line segments 101 on both sides of the stator coil 1, which is conducive to improving production quality. Of course, the types of the first transmission assembly and the second transmission assembly are not limited to this.

[0081] The first drive motor 210 and the second drive motor 211 are connected to the control device respectively. When the control device obtains the actual outer ring length A (i.e., the shuttle length of the shuttle structure), the actual inner ring width B (i.e., the pull shaft diameter of the shuttle structure) and the actual width C of a single coil of the stator coil 1, the control device starts the first drive motor 210 and the second drive motor 211 to automatically adjust the positions of the first slide 204 and the second slide 205 along the second direction, and the first pressing block 206 automatically moves along the second direction with the first slide 204, and the second pressing block 207 automatically moves along the second direction with the second slide 205, until the first pressing block 206 and the second pressing block 207 are respectively aligned with the straight line segments 101 on both sides of the stator coil 1, so as to realize the automatic adjustment of the positions of the first pressing block 206 and the second pressing block 207 along the second direction, and ensure that the positions of the first pressing block 206 and the second pressing block 207 can automatically change with the change of the size of the stator coil 1, with a high degree of automation and higher production efficiency.

[0082] The profiling device 2 further includes a third transmission assembly and a third drive motor 212. One end of the third transmission assembly is respectively connected to the first slide bar 202 and the second slide bar 203, and the other end thereof is connected to the third transmission assembly. The third drive motor 212 is used to drive the first slide bar 202 and the second slide bar 203 to slide relative to each other through the third transmission assembly, so that the first slide bar 202 and the second slide bar 203 are brought closer to each other or separated from each other along the first direction. The third transmission assembly is preferably a lead screw nut pair, which improves the displacement accuracy of the first slide bar 202 and the second slide bar 203, ensures the distance between the first pressing block 206 and the second pressing block 207 is accurate, and the size error of the stator coil 1 pressed out is small, which is conducive to improving production quality.

[0083] The third drive motor 212 is connected to the control device; when the control device obtains the actual inner ring width B of the stator coil 1 and the actual width C of a single coil, the control device starts the third drive motor 212 to adjust the positions of the first slide bar 202 and the second slide bar 203 accordingly along the first direction until the first pressure block 206 and the second pressure block 207 reach the set spacing, thereby automatically adjusting the positions of the first pressure block 206 and the second pressure block 207 along the first direction, ensuring that the positions of the first pressure block 206 and the second pressure block 207 can change with the change of the width of the stator coil 1, with a high degree of automation and higher production efficiency.

[0084] The profiling device 2 also includes a first guide rod 213 and a second guide rod respectively fixed to the support frame 201, the first guide rod 213 is located below the second guide rod, and the first guide rod 213 and the second guide rod are parallel to each other. The two ends of the first slide bar 202 are respectively slidably matched with the first guide rod 213 and the second guide rod, and the two ends of the second slide bar 203 are respectively slidably matched with the first guide rod 213 and the second guide rod, so that the first guide rod 213 and the second guide rod can provide support for the first slide bar 202 and the second slide bar 203, and can guide the first slide bar 202 and the second slide bar 203 to move linearly along the first direction. Specifically, the two ends of the first slide bar 202 and the second slide bar 203 are respectively integrally formed with T-shaped protrusions, and the first guide rod 213 and the second guide rod are respectively provided with T-shaped grooves, and the T-shaped protrusions are slidably matched with the T-shaped grooves. It should also be noted that stop blocks are fixed at both ends of the first guide rod 213 and the second guide rod respectively. The stop blocks can be elastic blocks, such as rubber blocks, which can be used to limit the extreme positions of the first slide bar 202 and the second slide bar 203 to prevent the first slide bar 202 and the second slide bar 203 from detaching, and can also provide vibration reduction and buffering for the first slide bar 202 and the second slide bar 203 to extend their service life.

[0085] As a preferred embodiment, the gelling device for the stator coil of the doubly-fed generator further includes a scanning device for scanning the stator coil 1 to obtain image information of the stator coil 1. The scanning device can be a camera or the like. The scanning device is connected to the control device. When the scanning device obtains the image information of the stator coil 1, the scanning device sends the image information to the control device. The control device obtains the actual width C of a single coil, the actual height D of a single coil, the actual outer coil length A, the actual inner coil width B and the length E of the straight line segment 101 of the stator coil 1 by processing the image information, as shown in the attached figure. Figure 3 As shown, conditions are provided for automatically adjusting the press-fitting pressure and the positions of the first pressing block 206 and the second pressing block 207. Of course, the acquisition method of the parameters of the stator coil 1 is not limited to scanning, and can also be input into the control device in advance through the operation panel, or acquired through sensor detection.

[0086] As attached Figure 2As shown, the gelling equipment for the stator coil of the doubly-fed generator also includes a drying device 4, a hanging track 6 and a hanging rack 7. The drying device 4 is arranged between the feeding area 3 and the pressing device 2, and is used to dry the inter-turn gel of the stator coil 1. A drying tunnel is formed in the drying device 4, and the drying tunnel is a U-shaped structure, so that the whole set of gelling equipment forms a U-shaped production line, so that the whole set of gelling equipment occupies less space, the operation is smoother, the transportation distance and time are reduced, and the production efficiency is higher. The hanging track 6 passes through the feeding area 3, the drying device 4, the pressing device 2 and the unloading area 5 in sequence. The hanging rack 7 can be slidably arranged on the hanging track 6, and is used to hang the stator coil 1, so that the stator coil 1 is transported by the hanging rack 7 to the feeding area 3, the drying device 4, the pressing device 2 and the unloading area 5 in sequence, providing conditions for the full automation of the whole set of gelling equipment, reducing manual participation, and being conducive to improving production efficiency. As a preferred embodiment, the suspension track 6 forms a U-shaped slide groove, and the suspension frame 7 is hinged with a support roller, so that the support roller rolls along the U-shaped slide groove, reducing the friction between the suspension frame 7 and the suspension track 6, which is beneficial to prolonging the service life of the suspension track 6 and the suspension frame 7. The suspension frame 7 is formed with a hook for hanging the stator coil 1.

[0087] As a preferred embodiment, the gelling device for the stator coil of the doubly-fed generator further includes a speed detection device and a suspension drive motor respectively connected to the control device. The speed detection device is used to detect the current moving speed of the suspension frame 7, and the speed detection device can specifically be a speed sensor. The suspension drive motor is connected to the support roller of the suspension frame 7, and is used to drive the support roller to roll along the suspension track 6.

[0088] When the control device obtains the set drying time of the stator coil 1 in the drying device 4, the control device adjusts the power of the suspension drive motor, and adjusts the current moving speed of the suspension frame 7 by changing the rotation speed of the support roller until the current moving speed reaches the set moving speed, and the set moving speed matches the set drying time. In this way, the drying time of the stator coil 1 in the drying device 4 can be changed by changing the moving speed of the suspension frame 7, so as to achieve precise control of the drying time of the stator coil 1, with a high degree of automation, and effectively improve the production quality. It should be noted that the set drying time in the text can be changed according to the change of the size of the stator coil 1, and the set drying time can be pre-input into the control device, and can also be obtained by a sensor that detects the drying state of the stator coil 1, which is not specifically limited here.

[0089] The embodiment of the present invention further discloses a method for gelling a stator coil of a doubly-fed generator, which is applied to a gelling device for a stator coil of a doubly-fed generator according to any one of claims 1 to 9, and the steps include:

[0090] S1, pre-adjusting the positions of the first pressing block 206 and the second pressing block 207 of the pressing device 2 according to the size of the stator coil 1, so that the first pressing block 206 and the second pressing block 207 are respectively aligned with the straight line segments 101 on both sides of the stator coil 1, and the two maintain a set distance;

[0091] S2, when the suspension frame 7 moves along the suspension track 6 to the loading area 3, the stator coil 1 is mounted on the suspension frame 7;

[0092] S3, when the stator coil 1 moves from the loading area 3 to the drying device 4 along with the hanging frame 7, the stator coil 1 stays in the drying device 4 for a set drying time;

[0093] S4, when the stator coil 1 moves from the drying device 4 to the pressing device 2 along with the hanging frame 7, the first pressing block 206 and the second pressing block 207 jointly press the stator coil 1 into a shuttle-shaped structure;

[0094] S5 , the stator coil 1 is moved from the profiling device 2 to the unloading area 5 along with the suspension frame 7 , thus completing the inter-turn gelling of the stator coil 1 .

[0095] It can be seen that during the gelling process of the stator coil 1, the size of the press device 2 can be changed as the size of the stator coil 1 changes by changing the positions of the first pressing block 206 and the second pressing block 207 of the press device 2. The press device 2 can adapt to stator coils 1 of different sizes, and there is no need to frequently replace the press device 2, thereby effectively improving production efficiency.

[0096] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0097] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A gelling device for a doubly-fed generator stator coil, characterized in that: It comprises a profiling device (2) for shaping a stator coil (1); the profiling device (2) comprises: Support frame (201); A first sliding rod (202) and a second sliding rod (203) respectively slidably arranged on the support frame (201) along a first direction; A first sliding seat (204) and a second sliding seat (205) respectively slidably arranged on the first sliding rod (202) and the second sliding rod (203) along a second direction; A first pressing block (206) and a second pressing block (207) respectively arranged on the first sliding seat (204) and the second sliding seat (205); The first direction is perpendicular to the second direction, and the first pressing block (206) and the second pressing block (207) are both spliced ​​structures; when the first pressing block (206) and the second pressing block (207) are spliced ​​to a set length, the positions of the first pressing block (206) and the second pressing block (207) are correspondingly adjusted along the second direction by adjusting the first slide seat (204) and the second slide seat (205) so that the two are respectively aligned with the straight line segments (101) on both sides of the stator coil (1), and then the positions of the first pressing block (206) and the second pressing block (207) are correspondingly adjusted along the first direction by the first slide bar (202) and the second slide bar (203) so that the two maintain a set distance.

2. The gelling device for the stator coil of a doubly-fed generator according to claim 1, characterized in that: The profiling device (2) further comprises: a first pressing plate (208) slidably disposed on the first sliding seat (204) along the first direction and used to support the first pressing block (206); a second pressing plate (209) slidably disposed on the second sliding seat (205) along the first direction and used to support the second pressing block (207); A first pressing cylinder fixedly mounted on the first slide seat (204) and fixedly connected to the first pressing plate (208); A second pressing cylinder fixedly mounted on the second slide seat (205) and fixedly connected to the second pressing plate (209); A control device connected to the first press cylinder and the second press cylinder respectively; When the control device obtains the actual width of a single coil and the actual height of a single coil of the stator coil (1), the control device synchronously adjusts the current pressing pressures of the first pressing cylinder and the second pressing cylinder until the current pressing pressures correspond to the actual width of the single coil and the actual height of the single coil, respectively.

3. The gelling device for the stator coil of a doubly-fed generator according to claim 2, characterized in that: The first pressing block (206) comprises a plurality of first assembling blocks (2061) stacked along the second direction, a first clamping plate is fixedly provided on one side of the first pressing plate (208), a first clamping protrusion is formed on one side of each of the first assembling blocks (2061), and the first clamping protrusion is clamped and matched with a first clamping groove provided on the first clamping plate; The second pressing block (207) comprises a plurality of second assembling blocks (2071) stacked along the second direction, a second clamping plate is fixedly provided on one side of the second pressing plate (209), a second clamping protrusion is formed on one side of each of the second assembling blocks (2071), and the second clamping protrusion is clamped and matched with a second clamping groove provided on the second clamping plate.

4. The gelling device for the stator coil of a doubly-fed generator according to claim 2, characterized in that: The profiling device (2) further comprises: a first transmission assembly connected to the first slide seat (204); A first drive motor (210) connected to the first transmission assembly and used to drive the first slide seat (204) to slide along the first slide rod (202) through the first transmission assembly to drive the first pressing block (206); a second transmission assembly connected to the second slide seat (205); A second drive motor (211) connected to the second transmission assembly and used to drive the second slide seat (205) to slide along the second slide rod (203) through the second transmission assembly to drive the second pressing block (207); The first drive motor (210) and the second drive motor (211) are respectively connected to the control device; When the control device obtains the actual outer ring length, the actual inner ring width and the actual width of the single coil of the stator coil (1), the control device starts the first drive motor (210) and the second drive motor (211) to adjust the positions of the first slide seat (204) and the second slide seat (205) accordingly along the second direction until the first pressing block (206) and the second pressing block (207) are respectively aligned with the straight line segments (101) on both sides of the stator coil (1).

5. The gelling device for the stator coil of a doubly-fed generator according to claim 4, characterized in that: The profiling device (2) further comprises: a third transmission assembly connected to the first sliding rod (202) and the second sliding rod (203) respectively; a third driving motor (212) connected to the third transmission assembly and used to drive the first sliding rod (202) and the second sliding rod (203) to slide relative to each other through the third transmission assembly; The third drive motor (212) is connected to the control device; When the control device obtains the actual inner ring width of the stator coil (1) and the actual width of the single coil, the control device starts the third drive motor (212) to adjust the positions of the first slide bar (202) and the second slide bar (203) accordingly along the first direction until the first pressing block (206) and the second pressing block (207) reach the set spacing.

6. The gelling device for the stator coil of a doubly-fed generator according to claim 5, characterized in that: The profiling device (2) further comprises: A first guide rod (213) and a second guide rod respectively fixed to the support frame (201) and parallel to each other; Two ends of the first sliding rod (202) and the second sliding rod (203) are slidably matched with the first guide rod (213) and the second guide rod respectively.

7. The gelling device for the stator coil of a doubly-fed generator according to claim 5, characterized in that: It also includes a scanning device for scanning the stator coil (1) to obtain image information of the stator coil (1), the scanning device is connected to the control device, the scanning device is used to send the image information to the control device, and the control device obtains the actual width of the single coil, the actual height of the single coil, the actual outer ring length, the actual inner ring width and the length of the straight line segment (101) by processing the image information.

8. The gelling device for the stator coil of a doubly-fed generator according to any one of claims 2 to 7, characterized in that: Also includes: A drying device (4) disposed between the loading area (3) and the profiling device (2); A hanging track (6) passing through the loading area (3), the drying device (4), the pressing device (2) and the unloading area (5) in sequence; A suspension frame (7) which can be slidably arranged on the suspension track (6) and is used to suspend the stator coil (1).

9. The gelling device for the stator coil of a doubly-fed generator according to claim 8, characterized in that: Also includes: A speed detection device for detecting the current moving speed of the suspension frame (7); A suspension drive motor connected to a support roller provided on the suspension frame (7) and used to drive the support roller to roll along the suspension track (6); The speed detection device and the suspension drive motor are both connected to the control device; When the control device obtains the set drying time of the stator coil (1) in the drying device (4), the control device adjusts the current moving speed of the suspension frame (7) by adjusting the power of the suspension drive motor until the current moving speed reaches the set moving speed, and the set moving speed matches the set drying time.

10. A method for gelling a stator coil of a doubly-fed generator, characterized in that: The gelling device applied to the stator coil of the doubly-fed generator according to any one of claims 1 to 9 comprises the following steps: Pre-adjusting the positions of the first pressing block and the second pressing block of the pressing device according to the size of the stator coil, so that the first pressing block and the second pressing block are respectively aligned with the straight line segments on both sides of the stator coil and keep a set distance between them; When the suspension frame moves along the suspension track to the loading area, the stator coil is mounted on the suspension frame; When the stator coil moves with the suspension frame from the loading area to the drying device, the stator coil stays in the drying device for a set drying time; When the stator coil moves from the drying device to the pressing device along with the hanging frame, the first pressing block and the second pressing block together press the stator coil into a shuttle-shaped structure; The stator coil is moved along with the suspension frame from the profiling device to the unloading area.

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