Synchronous motor magnetic pole supporting plate pressure welding device

Abstract

The utility model discloses a synchronous motor magnetic pole supporting plate pressure welding device in the technical field of magnetic pole supporting plate pressure welding, which comprises a magnetic pole iron core, a magnetic pole coil, a magnetic pole supporting plate, a second insulating plate and a pressure welding device, the magnetic pole coil is assembled on the magnetic pole iron core, the second insulating plate is arranged on the magnetic pole coil, and the pressure welding device is arranged on the magnetic pole supporting plate. The magnetic pole supporting plate is arranged on the second insulating plate, the pressure welding device abuts against the magnetic pole supporting plate so as to tightly press the second insulating plate and the magnetic pole coil, a gap is formed between the magnetic pole iron core and the magnetic pole supporting plate, and the magnetic pole iron core and the magnetic pole supporting plate are connected after being welded to form a plurality of welding blocks; the pressure welding device comprises a pressing part, a connecting part and a pressing part, the pressing part is placed at the top end of the magnetic pole iron core and used for bearing the connecting part and the pressing part, the connecting part is slidably connected to the pressing part, and the pressing part is fixedly installed on the connecting part and used for abutting against the magnetic pole supporting plate.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic pole support plate pressure welding, in particular to a synchronous motor magnetic pole support plate pressure welding device. Background Art

[0002] Vertical high-voltage salient-pole synchronous motors are often used in the motor industry, especially in hydro-turbine generators. Salient-pole synchronous motors generally have low speeds and a large number of magnetic pole pairs. There is a support plate on the magnetic pole that is pressed against the magnetic coil and welded to the iron core to fix the magnetic pole coil. When the motor is running, the magnetic pole is affected by centrifugal force. Under the action of centrifugal force, the magnetic pole coil will deform or displace. In severe cases, the magnetic pole coil will detach, affecting the reliable operation of the motor. Utility Model Content

[0003] The utility model aims to provide a synchronous motor pole support plate pressure welding device to solve the above-mentioned problem that when the motor is running, the pole coil will be deformed or displaced, and in severe cases, the pole coil will be separated, affecting the reliable operation of the motor.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A synchronous motor magnetic pole support plate pressure welding device comprises a magnetic pole core, a magnetic pole coil, a magnetic pole support plate, a second insulating plate and a pressure welding device, wherein the magnetic pole coil is assembled on the magnetic pole core, the second insulating plate is placed on the magnetic pole coil, the magnetic pole support plate is placed on the second insulating plate, the pressure welding device abuts against the magnetic pole support plate, thereby pressing the second insulating plate and the magnetic pole coil, a gap is formed between the magnetic pole core and the magnetic pole support plate, and they are connected after welding to form a plurality of welding blocks;

[0006] The pressure welding device includes a pressing part, a connecting part and a clamping part. The pressing part is placed at the top of the magnetic pole core and is used to support the connecting part and the clamping part. The connecting part is slidably connected to the pressing part. The clamping part is fixedly installed on the connecting part and is used to resist the magnetic pole support plate.

[0007] As a further solution of the utility model: the pressing part includes a pressing plate and a slider, the pressing plate is installed at the top of the pole core and is used to support the slider, the width of the pressing plate is smaller than the pole core, the cross-section of the slider is T-shaped, a plurality of first through holes are vertically opened on the pressing plate and the slider, and the connecting part is slidably connected to the slider.

[0008] As a further solution of the utility model: the connecting part includes a connecting sleeve and a pressure welding plate, wherein: the connecting sleeve is slidably connected to the outside of the slider and is provided with a slide rail matching the slider; the pressure welding plate is installed on the top of the connecting sleeve, and the bottom surface of the pressure welding plate is provided with a mounting groove for accommodating the connecting sleeve, and the pressure welding plate and the connecting sleeve are respectively provided with a third through hole and a second through hole vertically corresponding to the first through hole; the locking bolt passes through the third through hole, the second through hole and the first through hole in sequence, and is threadedly connected to the pole core to fix the pressing part and the connecting part to the pole core.

[0009] As a further solution of the utility model: the clamping part includes a transverse wing and an inclined wing, the transverse wings are provided with a plurality of and are symmetrically installed on both sides of the pressure welding plate, the inclined wings are provided with a plurality of and are symmetrically installed at the two end points of the pressure welding plate, the transverse wing is provided with a second internal thread, and the inclined wing is provided with a plurality of third internal threads; the second internal thread and the third internal thread are both threadedly connected with a clamping bolt, the clamping bolt is threadedly connected to the second internal thread, and the lower end thereof presses against the pole support plate near the two sides of the pole core through a gasket, the clamping bolt is threadedly connected to the third internal thread, and the lower end thereof presses against the pole support plate near the two ends of the pole core through a gasket.

[0010] As a further solution of the utility model: a socket vertically corresponding to the first through hole is opened in the pole core, a first internal thread threadedly connected to the locking bolt is opened at the lower side of the socket, the locking bolt is threadedly connected to the first internal thread, and the diameter of the socket is larger than the first through hole.

[0011] As a further solution of the utility model: the bottom end of the magnetic pole core is fixed to a mounting seat, a first insulating plate is placed on the mounting seat, and the magnetic pole coil is placed on the first insulating plate.

[0012] As a further solution of the utility model: the inner diameter of the pole support plate is smaller than the outer diameter of the pole core to form a gap, and the welding block is located between the outer diameter of the pole core and the inner diameter of the pole support plate; the slider is a positive T-shaped structure, and the narrow end is fixed to the pressure plate, and the wide end is slidably connected in the slide rail.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, the first insulating plate can separate the pole coil and the mounting seat; the first insulating plate, the second insulating plate and the pole support plate are all sleeved on the pole core; the pressure welding device is fixed on the pole core, and by pressing against the pole support plate, the second insulating plate and the pole coil can be pressed tightly, and then the pole support plate and the pole core are welded together using a welding device. Since the pressure welding device is used to press against the pole support plate to press the pole coil, compared with the traditional welding method, this method reduces the probability of relative displacement between the pole coil and the pole core, and improves the reliability of the motor operation.

[0015] In the utility model, the clamping bolt is threadedly connected in the second internal thread, and vertically presses against the pole support plates near the two sides of the pole core through gaskets; at the same time, the clamping bolt is threadedly connected in the third internal thread, and vertically presses against the pole support plates near the two ends of the pole core through gaskets. The above scheme can clamp the second insulating plate and the pole coil, and then use electric welding equipment to weld the pole support plate and the pole core together, which can reduce the risk of deformation or displacement of the pole coil and improve the reliability of the motor operation; several third internal threads can enable the clamping bolt to press against different parts of the pole support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a top view of the magnetic pole core in the utility model;

[0018] Figure 3 for Figure 1 The enlarged view of point A in the middle;

[0019] Figure 4 for Figure 1 The enlarged view of point B in the middle;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the pressing part in the utility model;

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the connecting sleeve in the utility model;

[0022] Figure 7 It is a structural schematic diagram of the medium pressure welding plate of the utility model.

[0023] In the figure: 1. pole core; 2. mounting seat; 3. first insulating plate; 4. pole coil; 5. second insulating plate; 6. pole support plate; 7. welding block; 8. pressure plate; 9. slider; 10. connecting sleeve; 11. pressure welding plate; 12. mounting groove; 13. locking bolt; 14. cross wing; 15. inclined wing; 16. clamping bolt; 17. gasket; 18. jack; 19. first internal thread; 20. first through hole; 21. second through hole; 22. third through hole; 23. second internal thread; 24. third internal thread; 25. slide rail. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0025] A synchronous motor magnetic pole support plate pressure welding device, please refer to Figure 1-Figure 7 , including a pole core 1, a pole coil 4, a pole support plate 6, a second insulating plate 5 and a pressure welding device. The bottom end of the pole core 1 is fixed to the mounting base 2, the first insulating plate 3 is placed on the mounting base 2, the pole coil 4 is placed on the first insulating plate 3, the pole coil 4 is assembled to the pole core 1, the second insulating plate 5 is placed on the pole coil 4, the pole support plate 6 is placed on the second insulating plate 5, the pressure welding device abuts against the pole support plate 6, thereby pressing the second insulating plate 5 and the pole coil 4, there is a gap between the pole core 1 and the pole support plate 6, after welding, they are connected to form a plurality of welding blocks 7.

[0026] Through the above technical scheme, the first insulating plate 3 in the utility model can separate the pole coil 4 and the mounting base 2; the first insulating plate 3, the second insulating plate 5 and the pole support plate 6 are all sleeved on the pole core 1; the pressure welding device is fixed on the pole core 1, and by pressing against the pole support plate 6, the second insulating plate 5 and the pole coil 4 can be pressed, and then the pole support plate 6 and the pole core 1 are welded together using a welding device. Since the pressure welding device is used to press against the pole support plate 6 to press the pole coil 4, compared with the traditional welding method, this method reduces the probability of relative displacement between the pole coil 4 and the pole core 1, and improves the reliability of the motor operation.

[0027] In some examples, reference Figure 1-7 As shown, the inner diameter of the pole support plate 6 is smaller than the outer diameter of the pole core 1 to form a gap, and the welding block 7 is located between the outer diameter of the pole core 1 and the inner diameter of the pole support plate 6 .

[0028] Through the above technical solution, the inner diameter of the pole support plate 6 in the utility model is smaller than the outer diameter of the pole core 1, so that a gap is formed between the pole support plate 6 and the pole core 1, and the welding block 7 can fix the pole support plate 6 and the pole core 1, thereby reducing the risk of deformation or displacement of the pole coil 4 and improving the reliability of the motor operation.

[0029] In some examples, reference Figure 1-7 As shown, the pressure welding device includes a pressing part, a connecting part and a clamping part. The pressing part is placed at the top of the pole core 1 and is used to support the connecting part and the clamping part. The connecting part is slidably connected to the pressing part, and the clamping part is fixedly installed on the connecting part and is used to resist the pole support plate 6.

[0030] Through the above technical solution, in the utility model, the pressing part is installed at the top of the pole core 1, the connecting part and the clamping part are installed above the pressing part, and the clamping part can press against the pole support plate 6, thereby clamping the second insulating plate 5 and the pole coil 4.

[0031] In some examples, reference Figure 1-7 As shown, the pressing part includes a pressing plate 8 and a slider 9. The pressing plate 8 is installed on the top of the pole core 1 and is used to support the slider 9. The width of the pressing plate 8 is smaller than the pole core 1. The cross-section of the slider 9 is T-shaped. The slider 9 is a positive T-shaped structure, and the narrow end is fixed to the pressing plate 8, the wide end is slidably connected in the slide rail 25, and the connecting part is slidably connected to the slider 9.

[0032] In some examples, reference Figure 1-7 As shown, the connection part includes a connection sleeve 10 and a pressure welding plate 11, wherein: the connection sleeve 10 is slidably connected to the outside of the slider 9, and is provided with a slide rail 25 matching the slider 9; the pressure welding plate 11 is installed on the top of the connection sleeve 10, and the bottom surface of the pressure welding plate 11 is provided with a mounting groove 12 for accommodating the connection sleeve 10.

[0033] Through the above technical scheme, the pressure plate 8 in the utility model is placed at the top of the pole core 1 and can be used to carry the slider 9; the width of the pressure plate 8 is smaller than the pole core 1, and the gap between the pole core 1 and the pole support plate 6 can be exposed to facilitate subsequent welding; the slider 9 with a positive T-shaped structure can make the connecting part slidably connected to the slide rail 25, which is convenient for the disassembly and assembly of the connecting sleeve 10 and the slider 9; the slide rail 25 provides a sliding track for the slider 9, which is convenient for the disassembly and assembly of the connecting sleeve 10; the pressure welding plate 11 is fixedly installed on the top of the connecting sleeve 10, and is used to carry the clamping part.

[0034] In some examples, reference Figure 1-7As shown, a plurality of first through holes 20 are vertically opened on the pressure plate 8 and the slider 9, and a third through hole 22 and a second through hole 21 vertically corresponding to the first through hole 20 are respectively opened on the pressure welding plate 11 and the connecting sleeve 10; the locking bolt 13 passes through the third through hole 22, the second through hole 21 and the first through hole 20 in sequence, and is threadedly connected to the pole core 1 to fix the pressing part and the connecting part to the pole core 1.

[0035] In some examples, reference Figure 1-7 As shown, a socket 18 vertically corresponding to the first through hole 20 is provided in the pole core 1, and a first internal thread 19 threadedly connected to the locking bolt 13 is provided at the lower side of the socket 18. The locking bolt 13 is threadedly connected to the first internal thread 19, and the diameter of the socket 18 is larger than the first through hole 20.

[0036] Through the above technical solution, the locking bolt 13 in the utility model passes through the third through hole 22, the second through hole 21 and the first through hole 20 in sequence, and then is inserted into the insertion hole 18 and threadedly connected with the first internal thread 19. The locking bolt 13 can fix the pressing part and the connecting part to the pole core 1; the diameter of the insertion hole 18 is larger than the first through hole 20, which is convenient for inserting the locking bolt 13.

[0037] In some examples, reference Figure 1-7 As shown, the clamping part includes a transverse wing 14 and an inclined wing 15. The transverse wing 14 is provided with a plurality of wings and is symmetrically installed on both sides of the pressure welding plate 11. The inclined wing 15 is provided with a plurality of wings and is symmetrically installed at two ends of the pressure welding plate 11. A second internal thread 23 is provided on the transverse wing 14, and a plurality of third internal threads 24 are provided on the inclined wing 15. The second internal thread 23 and the third internal thread 24 are both threadedly connected with a clamping bolt 16. The clamping bolt 16 is threadedly connected to the second internal thread 23, and the lower end thereof is pressed against the pole support plate 6 near the two sides of the pole core 1 through a gasket 17. The clamping bolt 16 is threadedly connected to the third internal thread 24, and the lower end thereof is pressed against the pole support plate 6 near the two ends of the pole core 1 through a gasket 17.

[0038] Through the above technical scheme, the clamping bolt 16 in the utility model is threadedly connected in the second internal thread 23, and vertically presses against the pole support plate 6 near the two sides of the pole core 1 through the gasket 17; at the same time, the clamping bolt 16 is threadedly connected in the third internal thread 24, and vertically presses against the pole support plate 6 near the two ends of the pole core 1 through the gasket 17. The above scheme can clamp the second insulating plate 5 and the pole coil 4, and then use electric welding equipment to weld the pole support plate 6 to the pole core 1, which can reduce the risk of deformation or displacement of the pole coil 4 and improve the reliability of the motor operation; a number of third internal threads 24 can enable the clamping bolt 16 to press against different parts of the pole support plate 6.

[0039] The working principle of the utility model is:

[0040] First, place the first insulating plate 3 on the mounting seat 2, then place the pole coil 4 on the first insulating plate 3 and assemble it on the pole core 1, then place the second insulating plate 5 on the pole coil 4, then place the pole support plate 6 on the second insulating plate 5, then place the pressing plate 8 and the slider 9 on the top of the pole core 1, then sleeve the connecting sleeve 10 on the slider 9 along the slide rail 25, and make the first through hole 20 correspond vertically to the first through hole 20, then install the pressure welding plate 11 on the top of the connecting sleeve 10 through the mounting groove 12, then pass the locking bolt 13 through the third through hole 22, the second through hole 21 and the first through hole 20 in sequence, and then threadedly connect with the first internal thread 19, the locking bolt 13 can fix the pressing part and the connecting part to the pole core 1;

[0041] Recently, the clamping bolts 16 are driven to be threadedly connected in the second internal threads 23 and the third internal threads 24 , and vertically abut against the magnetic pole support plate 6 through the gasket 17 to clamp the second insulating plate 5 and the magnetic pole coil 4 .

[0042] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A synchronous motor pole support plate pressure welding device, comprising a pole core (1), a pole coil (4), a pole support plate (6), a second insulating plate (5) and a pressure welding device, wherein the pole coil (4) is assembled on the pole core (1), the second insulating plate (5) is placed on the pole coil (4), and the pole support plate (6) is placed on the second insulating plate (5), characterized in that: The pressure welding device abuts against the magnetic pole support plate (6), thereby pressing the second insulating plate (5) and the magnetic pole coil (4); a gap is provided between the magnetic pole core (1) and the magnetic pole support plate (6), and they are connected after welding to form a plurality of welding blocks (7); The pressure welding device comprises a pressing part, a connecting part and a clamping part, wherein the pressing part is placed at the top of the magnetic pole core (1) and is used to carry the connecting part and the clamping part, the connecting part is slidably connected to the pressing part, and the clamping part is fixedly mounted on the connecting part and is used to abut against the magnetic pole support plate (6).

2. A synchronous motor pole support plate pressure welding device according to claim 1, characterized in that: The pressing portion comprises a pressing plate (8) and a sliding block (9); the pressing plate (8) is mounted on the top of the magnetic pole core (1) and is used to carry the sliding block (9); the width of the pressing plate (8) is smaller than that of the magnetic pole core (1); the cross section of the sliding block (9) is T-shaped; a plurality of first through holes (20) are vertically provided on the pressing plate (8) and the sliding block (9); and the connecting portion is slidably connected to the sliding block (9).

3. A synchronous motor pole support plate pressure welding device according to claim 2, characterized in that: The connecting portion comprises a connecting sleeve (10) and a pressure welding plate (11), wherein: The connecting sleeve (10) is slidably connected to the outside of the sliding block (9) and is provided with a sliding rail (25) matching the sliding block (9); The pressure welding plate (11) is mounted on the top of the connecting sleeve (10); a mounting groove (12) for accommodating the connecting sleeve (10) is provided on the bottom surface of the pressure welding plate (11); a third through hole (22) and a second through hole (21) vertically corresponding to the first through hole (20) are respectively provided on the pressure welding plate (11) and the connecting sleeve (10); The locking bolt (13) passes through the third through hole (22), the second through hole (21) and the first through hole (20) in sequence, and is threadedly connected to the magnetic pole core (1) to fix the pressing portion and the connecting portion to the magnetic pole core (1).

4. A synchronous motor pole support plate pressure welding device according to claim 3, characterized in that: The clamping portion comprises a transverse wing (14) and an inclined wing (15); the transverse wing (14) is provided with a plurality of symmetrically mounted on both sides of the pressure welding plate (11); the inclined wing (15) is provided with a plurality of symmetrically mounted on two ends of the pressure welding plate (11); the transverse wing (14) is provided with a second internal thread (23); and the inclined wing (15) is provided with a plurality of third internal threads (24); The second internal thread (23) and the third internal thread (24) are both threadedly connected with clamping bolts (16); the clamping bolts (16) are threadedly connected to the second internal thread (23); the lower ends of the clamping bolts (16) are pressed against the pole support plates (6) near the two sides of the pole core (1) via gaskets (17); the clamping bolts (16) are threadedly connected to the third internal thread (24); the lower ends of the clamping bolts (16) are pressed against the pole support plates (6) near the two ends of the pole core (1) via gaskets (17).

5. A synchronous motor pole support plate pressure welding device according to claim 4, characterized in that: The pole core (1) is provided with an insertion hole (18) vertically corresponding to the first through hole (20), the lower side of the insertion hole (18) is provided with a first internal thread (19) threadedly connected to the locking bolt (13), the locking bolt (13) is threadedly connected to the first internal thread (19), and the diameter of the insertion hole (18) is larger than that of the first through hole (20).

6. A synchronous motor pole support plate pressure welding device according to claim 5, characterized in that: The bottom end of the magnetic pole core (1) is fixed to a mounting seat (2), a first insulating plate (3) is placed on the mounting seat (2), and the magnetic pole coil (4) is placed on the first insulating plate (3).

7. A synchronous motor magnetic pole support plate pressure welding device according to claim 6, characterized in that: The inner diameter of the magnetic pole support plate (6) is smaller than the outer diameter of the magnetic pole core (1) to form a gap, and the welding block (7) is located between the outer diameter of the magnetic pole core (1) and the inner diameter of the magnetic pole support plate (6); The sliding block (9) is a positive T-shaped structure, with a narrow end fixed to the pressing plate (8) and a wide end slidably connected in the sliding rail (25).

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