Mistake-proof winding device of shunt excitation magnet exciting coil

Abstract

The invention provides an error-proof winding device of a shunt excitation coil, which comprises an error-proof winding mechanism and a driving mechanism, the output end of the driving mechanism is connected with the error-proof winding mechanism, the error-proof winding mechanism comprises a core rod, and a baffle, a mold core assembly and a pressing assembly are sequentially assembled outside the core rod. The mistake-proof winding device can prevent a certain retainer from being installed in a wrong direction, so that the problem that the winding direction of the shunt excitation coil is wrong is solved, and the winding efficiency of the shunt excitation coil assembly is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of motor manufacturing, and particularly relates to an anti-miswinding device for a shunt excitation coil.

Background Art

[0002] Most of the existing starters are series-excited starters. With the development of domestic engine technology and the increasing demand for power in large-piece transportation, special transportation, highway vehicles in special road conditions, and mining trucks, domestic main engine factories have successively developed engines with a displacement of more than 15L. As the engine displacement increases, the starting resistance torque also increases correspondingly, which requires the power of the starter to be increased. For this reason, the existing series-excited starters need to increase the specifications of the rotor and stator in order to adapt to the starters for engines with a displacement of more than 15L.

[0003] In view of this, the inventor of this case developed a high-power compound-excited starter. The compound-excited starter is composed of components such as a compound-excited stator, a rotor, an electromagnetic switch, and a relay. The compound-excited stator includes a stator housing, a series-excited coil assembly, a shunt-excited coil assembly, and a stator pole assembly. The series-excited coil assembly and the shunt-excited coil assembly are assembled inside the stator housing. The shunt-excited coil assembly is sleeved inside the series-excited coil assembly, and the stator pole assembly is sleeved inside the shunt-excited coil assembly. This compound-excited stator can be applied to large-displacement diesel engines, natural gas engines, etc.

[0004] The shunt-excited coil assembly is composed of 4 or 6 shunt-excited coil windings wound around. Referring to the appendix Figure 14 , taking the shunt-excited coil assembly composed of 6 shunt-excited coil windings wound around as an example, the first, third, and fifth shunt-excited coil windings need to be wound in the forward direction, and the second, fourth, and sixth shunt-excited coil windings need to be wound in the reverse direction. However, when the operator winds the shunt-excited coil, the winding direction is often wrong, resulting in the wrong winding direction of the coils of the shunt-excited coil assembly. In order to avoid errors and improve the winding efficiency, the inventor of this case conducted in-depth research on the above problems, and thus this case was born.

Summary of the Invention

[0005] The present invention aims to provide an anti-miswinding device for a shunt-excited coil, which can prevent a certain cage from being installed in the wrong direction, thereby avoiding the problem of wrong winding direction of the shunt-excited coil and improving the winding efficiency of the shunt-excited coil assembly.

[0006] The present invention is realized as follows: An anti-miswinding device for a shunt-excited coil includes an anti-miswinding mechanism and a driving mechanism. The output end of the driving mechanism is connected to the anti-miswinding mechanism. The anti-miswinding mechanism includes a mandrel, and a baffle, a die core assembly, and a pressing assembly are sequentially assembled outside the mandrel.

[0007] Further, the mandrel sequentially includes a round rod section, a square rod section, and a screw rod section; the baffle is sleeved on the round rod section, the die core assembly is sleeved on the square rod section, and the pressing assembly is sleeved on the screw rod section.

[0008] Further, the die core assembly includes two or three groups of first die cores and second die cores that are inserted into each other.

[0009] Further, the die core assembly includes three groups of first die cores and second die cores that are inserted into each other.

[0010] Further, the first die core includes a first core section, and on both sides of the first core section, a front cage blade anti-misalignment relief boss and a rear cage blade anti-misalignment relief boss are respectively formed. On the side of the front cage blade anti-misalignment relief boss away from the first core section, a first cage frame anti-misalignment relief boss is formed. On the side of the first cage frame anti-misalignment relief boss away from the front cage blade anti-misalignment relief boss, an upper insertion boss and a lower insertion boss are formed;

[0011] The second die core includes a second core section, and on one side of the second core section, a second cage frame anti-misalignment relief boss is formed. On the side of the second cage frame anti-misalignment relief boss away from the second core section, a left insertion boss and a right insertion boss are formed;

[0012] A first square hole for the square rod section to pass through is formed in the middle of the first die core. Inside the rear cage blade anti-misalignment relief boss, a left insertion slot and a right insertion slot that are adapted to the left insertion boss and the right insertion boss are formed, and the first square hole is communicated with the left insertion slot and the right insertion slot; a second square hole for the square rod section to pass through is formed in the middle of the second die core. Inside the second core section, an upper insertion slot and a lower insertion slot that are adapted to the upper insertion boss and the lower insertion boss are formed, and the second square hole is communicated with the upper insertion slot and the lower insertion slot.

[0013] Further, a first upper weight-reducing hole is formed above the first square hole of the first die core, and a first lower weight-reducing hole is formed below the first square hole. Both the first upper weight-reducing hole and the first lower weight-reducing hole are communicated with the first square hole; a second upper weight-reducing hole is formed above the second square hole of the second die core, and a second lower weight-reducing hole is formed below the second square hole. Both the second upper weight-reducing hole and the second lower weight-reducing hole are communicated with the second square hole.

[0014] Further, wire blocking screws are assembled at the tops of both the first core section and the second core section.

[0015] Further, a round hole penetrating the baffle is formed at the central position of the baffle. On the side of the baffle facing the die core assembly, a blade relief boss is formed, and inside the blade relief boss, insertion holes for the left insertion boss and the right insertion boss to insert are formed.

[0016] Further, the pressing assembly includes a pressing plate and a locking member.

[0017] Further, the driving mechanism includes a driving motor and a winding mandrel. The round rod section of the mandrel is sleeved on the winding mandrel, and a threaded hole is formed in the round rod section. The round rod section is connected to the winding mandrel by a fastening screw.

[0018] The advantages of the present invention are as follows:

[0019] 1. In the anti-miswinding device of the present invention, the anti-miswinding mechanism can prevent a certain cage from being installed in the wrong direction and avoid the problem of the wrong winding direction of the shunt excitation coil. During winding production, the driving mechanism drives the anti-miswinding mechanism to rotate in the same direction all the time. By controlling the assembly orientation of the cage on the die core assembly, the winding direction of the shunt coil assembly is simplified, and the overall winding efficiency of the shunt coil assembly is improved.

[0020] 2. The first die core is provided with a set of front cage blade anti-misalignment bosses and rear cage blade anti-misalignment bosses, so that when an operator assembles the cage, the orientation of the cage blades can be locked to avoid misinstallation. The widths of the first cage frame anti-misalignment boss and the second cage frame anti-misalignment boss are the same and are applicable to cages of the same model, further preventing the cage from being misinstalled. If the blades of the cage are installed towards the second die core, they will not fit, and the operator can immediately discover and correct the error.

[0021] 3. The design of the weight-reducing holes can reduce the weight of the die core, thereby reducing the rotational inertia, reducing the vibration during winding, improving the rotational stability, and making the shunt excitation coil wound more neatly and beautifully.

Description of the Drawings

[0022] The present invention will be further described below with reference to the accompanying drawings in conjunction with embodiments.

[0023] Figure 1 is a schematic structural diagram of the anti-miswinding device of the present invention after installing the cage.

[0024] Figure 2 is a schematic structural diagram of the anti-miswinding device of the present invention.

[0025] Figure 3 is a schematic structural diagram of the anti-miswinding mechanism of the present invention.

[0026] Figure 4 is a schematic structural diagram of the mandrel of the present invention.

[0027] Figure 5 is an exploded schematic diagram of the anti-miswinding mechanism of the present invention.

[0028] Figure 6 is one of the schematic structural diagrams of the first die core of the present invention.

[0029] Figure 7 It is the second schematic structural view of the first die core in the present invention.

[0030] Figure 8 It is the side view of the first die core in the present invention.

[0031] Figure 9 It is the rear view of the first die core in the present invention.

[0032] Figure 10 It is the first schematic structural view of the second die core in the present invention.

[0033] Figure 11 It is the rear view of the second die core in the present invention.

[0034] Figure 12 It is the second schematic structural view of the second die core in the present invention.

[0035] Figure 13 It is the schematic structural view of the baffle in the present invention.

[0036] Figure 14 It is the schematic structural view of the shunt coil assembly in the present invention.

[0037] Figure 15 It is the schematic structural view of the cage in the present invention.

[0038] Error-proof winding device 100, error-proof winding mechanism 10, mandrel 1, round rod section 11, threaded hole 111, fastening screw 112, square rod section 12, screw rod section 13, baffle 2, round hole 21, blade relief boss 22, jack 23, die core assembly 3, first die core 31, first core section 311, front cage blade error-proof relief boss 312, rear cage blade error-proof relief boss 313, first cage frame error-proof relief boss 314, upper insertion boss 315, lower insertion boss 316, first square hole 317, left insertion groove 318, right insertion groove 319, second die core 32, second core section 321, second cage frame error-proof relief boss 321, left insertion boss 323, right insertion boss 324, second square hole 325, upper insertion groove 326, lower insertion groove 327, first upper weight-reducing hole 34, first lower weight-reducing hole 35, second upper weight-reducing hole 36, second lower weight-reducing hole 37, pressing component 4, pressing plate 41, locking part 42, wire blocking screw 5, driving mechanism 20, driving motor 6, winding machine shaft 7

[0039] Shunt coil assembly 200, first shunt coil winding 201, second shunt coil winding 202, third shunt coil winding 203, fourth shunt coil winding 204, fifth shunt coil winding 205, sixth shunt coil winding 206

[0040] Cage 300, square frame 301, inner hole 302, shunt coil slot 303, first blade 304, second blade 305, first wire slot 306, second wire slot 307,

[0041] Shunt excitation coil 400.

Detailed implementation manners

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. It should be noted here that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing these embodiments and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features.

[0043] Please refer to Figures 14-15 As shown, the shunt coil assembly 200 is composed of 6 shunt coil windings, including a first shunt coil winding 201, a second shunt coil winding 202, a third shunt coil winding 203, a fourth shunt coil winding 204, a fifth shunt coil winding 205, and a sixth shunt coil winding 206. The first shunt coil winding 201, the third shunt coil winding 203, and the fifth shunt coil winding 205 need to be wound forward, and the second shunt coil winding 202, the fourth shunt coil winding 204, and the sixth shunt coil winding 206 need to be wound backward. The magnetic field directions of the forward winding and the backward winding are opposite.

[0044] Each shunt coil winding is composed of a cage 300 and a shunt exciting coil 400 wound around the cage 300. The cage 300 is formed with an inner hole 302. The cage 300 includes a square frame 302, and shunt coil grooves 303 are formed on the outside of the square frame 302. On the top of one side of the square frame 302, symmetric first and second blades 304 and 305 are fixedly provided on the left and right for the forward winding and reverse winding of the shunt exciting coil 400. The first blade 304 is formed with a first wire clamping groove 306, and the second blade 305 is formed with a second wire clamping groove 307. The wire clamping grooves are used for the auxiliary fixation of the reverse-wound shunt exciting coil 400. The first shunt coil winding 201 is wound forward. The shunt exciting coil 400 is wound into the shunt coil groove 303 from the first wire clamping groove 306 of the first blade 304, and finally winds to the side of the cage 300 without blades and is pressed by the back surface of the second blade 305, and then extends out. The second shunt coil winding 202 is wound reversely. The shunt exciting coil 400 is pressed by the back surface of the first blade 304, enters the shunt coil groove 303, starts winding from the side of the cage 300 without blades, and finally the shunt exciting coil 400 is clamped into the second wire clamping groove 307 and extends out; and so on.

[0045] Please refer to Figures 1-13 As shown, the present invention provides an anti-miswinding device 100 for a shunt exciting coil, including a driving mechanism 20 and an anti-miswinding mechanism 10. The output end of the driving mechanism 20 is connected to the anti-miswinding mechanism 10. The anti-miswinding mechanism 10 includes a mandrel 1. A baffle 2, a die core assembly 3, and a pressing assembly 4 are sequentially assembled outside the mandrel 1. The mandrel 1 sequentially includes a round rod section 11, a square rod section 12, and a screw rod section 13. The baffle 2 is sleeved on the round rod section 11, the die core assembly 3 is sleeved on the square rod section 12, and the pressing assembly 4 is sleeved on the screw rod section 13 to press the die core assembly 3.

[0046] When manufacturing the anti-miswinding device 100, first fix the mandrel 1 on the output end of the driving mechanism 20, and then sequentially sleeved the baffle 2 on the round rod section 11, the die core assembly 3 on the square rod section 12, and the pressing assembly 4 on the screw rod section 13 to press the die core assembly 3. In the anti-miswinding device 100 of the present invention, the anti-miswinding mechanism 10 can prevent a certain cage 300 from being installed in the wrong direction and avoid the problem of incorrect winding direction of the shunt exciting coil 400. During the winding production, the driving mechanism 20 drives the anti-miswinding mechanism 10 to rotate in the same direction all the time. By controlling the assembly orientation of the cage 300 on the die core assembly 3, the winding direction of the shunt coil assembly 200 is simplified, and the overall winding efficiency of the shunt coil assembly 200 is improved.

[0047] In the present invention, the core assembly 3 includes two or three groups of first cores 31 and second cores 32 that are inserted and installed with each other. When the core assembly 3 includes two groups of first cores 31 and second cores 32 that are inserted and installed with each other, a two-pole stator can be produced, that is, a shunt coil assembly 200 including four shunt coil windings. The gap between the windings is relatively large, and the assembly difficulty is small. However, the rotor winding that is adapted needs to use a larger wire diameter, and the rotor wire twisting difficulty is high, and the production difficulty is relatively large. When the core assembly 3 includes three groups of first cores 31 and second cores 32 that are inserted and installed with each other, a three-pole stator can be produced, that is, a shunt coil assembly 200 including six shunt coil windings. The gap between the windings is very small, and the assembly difficulty is large. However, the rotor winding that is adapted can use a smaller wire diameter, and the rotor wire twisting difficulty is relatively low, and the production difficulty is relatively low. The output power of the three-pole structure is slightly higher than that of the two-pole structure, and it has more advantages in use.

[0048] In the present invention, the core assembly 3 includes three groups of first cores 31 and second cores 32 that are inserted and installed with each other. The first core 31 is used to sleeved with the cage 300, and the winding direction is forward winding; the second core 32 is used to sleeved with the cage 300, and the winding direction is reverse winding.

[0049] Reference attachment Figures 1-5 As shown, in the direction from the baffle 2 to the pressing plate 41, the core assembly 3 sequentially includes the first second core 32, the first first core 31, the second second core 32, the second first core 31, the third second core 32, and the third first core 31, which are inserted together front and back. A first cage 300 is assembled between the baffle 2 and the first second core 32, and the blades of the first cage face the baffle 2; a second cage is installed between the first second core 32 and the first first core 31, and the blades of the second cage face the first first core 31; a third cage is installed between the first first core 31 and the second second core 32, and the blades of the third cage face the first first core 31; a fourth cage is installed between the second second core 32 and the second first core 31, and the blades of the fourth cage face the second first core 31; a fifth cage is installed between the second first core 31 and the third second core 32, and the blades of the fifth cage face the second first core 31; a sixth cage is installed between the third second core 32 and the third first core 31, and the blades of the sixth cage face the third first core 31; finally, the third first core 31 is pressed by the pressing plate 41. The blades of the cage 300 between the adjacent first cores 31 and second cores 32 are all installed facing the first core 31, so that it is not easy for the operator to install the cage 300 in the wrong direction during assembly, reducing the error probability of installation and winding.

[0050] In the present invention, the first die core 31 includes a first core segment 311. On both sides of the first core segment 311, a front cage blade anti-misalignment relief boss 312 and a rear cage blade anti-misalignment relief boss 313 are respectively formed. On the side of the front cage blade anti-misalignment relief boss 312 away from the first core segment 311, a first cage frame anti-misalignment relief boss 314 is formed. On the side of the first cage frame anti-misalignment relief boss 314 away from the front cage blade anti-misalignment relief boss 312, an upper insertion boss 315 and a lower insertion boss 316 are formed. The first core segment 311 is used to adjust the length of the connecting wire between windings, and the thickness dimension of the first core segment 311 can be adjusted according to the requirements of the length of the connecting wire between windings. The front cage blade anti-misalignment relief boss 312 and the rear cage blade anti-misalignment relief boss 313 are used to sleeved with the first blade 304 and the second blade 305 of the cage 300, and the first cage frame anti-misalignment relief boss 314 is used to sleeved with the square frame 301 of the cage 300.

[0051] The second die core 32 includes a second core segment 321. On one side of the second core segment 321, a second cage frame anti-misalignment relief boss 321 is formed. On the side of the second cage frame anti-misalignment relief boss 321 away from the second core segment 321, a left insertion boss 323 and a right insertion boss 324 are formed. The second cage frame anti-misalignment relief boss 321 is used to sleeved with the square frame 301 of the cage 300.

[0052] The main difference between the first die core 31 and the second die core 32 is that: the first die core 31 is increased by a set of front cage blade anti-misalignment relief boss 312 and rear cage blade anti-misalignment relief boss 313, so that when the operator assembles the cage 300, the orientation of the cage blades can be locked to avoid misassembly. The widths of the first cage frame anti-misalignment relief boss 314 and the second cage frame anti-misalignment relief boss 321 are the same, which is applicable to the cage 300 of the same model, and further ensures that the cage 300 will not be misassembled. If the blades of the cage 300 are installed facing the second die core 32, it will not be adapted, and the operator can find and correct the error immediately.

[0053] A first square hole 317 is formed in the middle of the first mold core 31 for the square rod segment 12 to pass through, and a left plug-in groove 318 and a right plug-in groove 319 that are compatible with the left plug-in boss 323 and the right plug-in boss 324 are formed inside the rear retaining frame blade anti-misalignment boss 313, and the first square hole 317 is connected with the left plug-in groove 318 and the right plug-in groove 319; a second square hole 325 is formed in the middle of the second mold core 32 for the square rod segment 12 to pass through, and an upper plug-in groove 326 and a lower plug-in groove 327 that are compatible with the upper plug-in boss 315 and the lower plug-in boss 316 are formed inside the second core segment 321, and the second square hole 325 is connected with the upper plug-in groove 326 and the lower plug-in groove 327. During assembly, the upper plug-in boss 315 and the lower plug-in boss 316 of the first core mold 31 are inserted into the upper plug-in groove 326 and the lower plug-in groove 327 of the second core mold 32, so that the first core mold 31 and the second core mold 32 are assembled together. The first square hole 317 and the second square hole 325 are designed to sleeve the core mold on the square rod section 12 to prevent the core mold from rotating on the core rod 1. Of course, a rectangular hole or an elliptical hole or a non-circular hole 21 can also be used as long as it does not rotate relative to the core rod 1. By arranging the plug-in groove and the plug-in boss on the core mold, the first core mold 31 and the second core mold 32 can be stably installed together to avoid loosening during winding, thereby ensuring that the shunt excitation coil 400 is wound more neatly and beautifully. Through the design of the retainer blade anti-mistake yielding boss, the retainer frame anti-mistake yielding boss, and multiple plug-in slots, the retainer 300 can only be installed on the core rod 1 in sequence, one right side up and one wrong side up. If the core assembly 3 is installed incorrectly and cannot be pressed tightly, the operator will immediately discover and adjust it, ensuring the consistency of production.

[0054] In the present invention, the first mold core 31 is formed with a first upper weight-reducing hole 34 above the first square hole 317 and a first lower weight-reducing hole 35 below the first square hole 317, and both the first upper weight-reducing hole 34 and the first lower weight-reducing hole 35 are connected to the first square hole 317; the second mold core 32 is formed with a second upper weight-reducing hole 36 above the second square hole 325 and a second lower weight-reducing hole 37 below the second square hole 325, and both the second upper weight-reducing hole 36 and the second lower weight-reducing hole 37 are connected to the second square hole 325. The design of the weight-reducing holes can reduce the weight of the mold core, thereby reducing the rotational inertia, reducing the vibration during winding, and improving the rotational stability, thereby making the shunt excitation coil 400 wound more neatly and beautifully.

[0055] In the present invention, stop screws 5 are assembled at the tops of the first core segment 311 and the second core segment 321. The stop screws 5 are detachably connected to the first core segment 311 or the second core segment 321. After winding a cage 300, the driving mechanism 20 stops operating. An operator winds the shunt excitation coil 400 around the stop screw 5 once, and then winds the shunt excitation coil 400 into the shunt coil slot 303 of the next cage 300, and so on. After winding all 6 cages 300, the 6 cages are disassembled. Then, the operator winds the connection line between adjacent cages 300 in the forward or reverse direction on the first blade 304 or the second blade 305.

[0056] In the present invention, a circular hole 21 penetrating the baffle 2 is formed at the central position of the baffle 2. A blade relief boss 22 is formed on the surface of the baffle 2 facing the die core assembly 3. A jack 23 for inserting the left insertion boss 323 and the right insertion boss 324 is formed in the blade relief boss 22. The baffle 2 and the pressing plate 41 cooperate to limit the die core assembly 3.

[0057] In the present invention, the pressing assembly 4 includes a pressing plate 41 and a locking member 42. Threads are formed on the outer surface of the screw rod section 13. First, the pressing plate 41 is pressed into the screw rod section 13 and abuts against the die core assembly 3. Then, the locking member 42 is screwed into the screw rod section 13 to lock the pressing plate 41 on the mandrel 1, so as to press the die core assembly 3. Preferably, the locking member 42 is a wing nut, which is convenient for manual rotation.

[0058] In the present invention, the driving mechanism 20 includes a driving motor 6 and a winding machine shaft 7. The round rod section 11 of the mandrel 1 is sleeved on the winding machine shaft 7. A threaded hole 111 is formed in the round rod section 11, and the round rod section 11 is connected to the winding machine shaft 7 through a fastening screw 112. When the driving motor 6 operates, it drives the winding machine shaft 7 to rotate, and then drives the mandrel 1 to rotate.

[0059] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments we described are illustrative rather than used to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered by the scope protected by the claims of the present invention.

Claims

1. A wrong winding prevention device for a shunt excitation coil, characterized in that: It includes an anti-miswiring mechanism and a driving mechanism. The output end of the driving mechanism is connected to the anti-miswiring mechanism. The anti-miswiring mechanism includes a mandrel, and a baffle, a die core assembly, and a pressing assembly are sequentially assembled outside the mandrel.

2. The anti-miswinding device for the shunt excitation coil according to claim 1, characterized in that: The mandrel sequentially includes a round rod section, a square rod section, and a screw rod section; the baffle is sleeved on the round rod section, the die core assembly is sleeved on the square rod section, and the pressing assembly is sleeved on the screw rod section.

3. The anti-miswinding device for the shunt excitation coil according to claim 2, characterized in that: The die core assembly includes two or three groups of first die cores and second die cores that are inserted into each other.

4. The anti-miswinding device for the shunt excitation coil as described in claim 3, characterized in that: The die core assembly includes three groups of first die cores and second die cores that are inserted into each other.

5. The anti-miswinding device for the shunt excitation coil according to any one of claims 3 or 4, characterized in that: The first die core includes a first core section. On both sides of the first core section, a front cage blade anti-miswiring relief boss and a rear cage blade anti-miswiring relief boss are respectively formed. On the side of the front cage blade anti-miswiring relief boss away from the first core section, a first cage frame anti-miswiring relief boss is formed. On the side of the first cage frame anti-miswiring relief boss away from the front cage blade anti-miswiring relief boss, an upper insertion boss and a lower insertion boss are formed. The second die core includes a second core section. On one side of the second core section, a second cage frame anti-miswiring relief boss is formed. On the side of the second cage frame anti-miswiring relief boss away from the second core section, a left insertion boss and a right insertion boss are formed. A first square hole for the square rod section to pass through is formed in the middle of the first die core. Inside the rear cage blade anti-miswiring relief boss, a left insertion groove and a right insertion groove adapted to the left insertion boss and the right insertion boss are formed, and the first square hole is communicated with the left insertion groove and the right insertion groove; a second square hole for the square rod section to pass through is formed in the middle of the second die core. Inside the second core section, an upper insertion groove and a lower insertion groove adapted to the upper insertion boss and the lower insertion boss are formed, and the second square hole is communicated with the upper insertion groove and the lower insertion groove.

6. The anti-miswinding device for the shunt excitation coil as described in claim 5, characterized in that: The first die core forms a first upper weight-reducing hole above the first square hole and a first lower weight-reducing hole below the first square hole, and both the first upper weight-reducing hole and the first lower weight-reducing hole are communicated with the first square hole; the second die core forms a second upper weight-reducing hole above the second square hole and a second lower weight-reducing hole below the second square hole, and both the second upper weight-reducing hole and the second lower weight-reducing hole are communicated with the second square hole.

7. The anti-miswinding device for the shunt excitation coil as described in claim 6, characterized in that: Wire blocking screws are assembled at the tops of the first core section and the second core section.

8. The anti-miswinding device for the shunt excitation coil according to claim 7, characterized in that: A round hole penetrating the baffle is formed at the central position of the baffle. On the side of the baffle facing the die core assembly, a blade relief boss is formed, and an insertion hole for the left insertion boss and the right insertion boss to be inserted into is formed inside the blade relief boss.

9. The anti-miswinding device for the shunt excitation coil according to claim 2, wherein: The pressing assembly includes a pressing plate and a locking member.

10. The anti-miswinding device for the shunt excitation coil according to claim 2, characterized in that: The driving mechanism includes a driving motor and a winding machine shaft. The round rod section of the mandrel is sleeved on the winding machine shaft, and a threaded hole is formed in the round rod section, and the round rod section is connected to the winding machine shaft through a fastening screw.

Images