Generator stator positioning rib end short circuit structure

Abstract

The utility model belongs to the technical field of generators, and particularly relates to a generator stator positioning rib end short-circuit structure. According to the technical scheme, the generator stator positioning rib end short-circuit structure comprises an iron core formed by stacking silicon steel sheets, pressing rings are arranged on the two sides of the iron core, and the pressing rings are connected with the iron core through positioning ribs; and the short circuit copper ring is respectively connected with one end, far away from the iron core, of each positioning rib. The utility model provides a generator stator positioning rib end portion short-circuit structure, which improves the safe operation stability of the end portion of a generator iron core, and is especially suitable for generators with capacity increasing requirements after being put into operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of generators, and particularly relates to a short-circuit structure for the end of a generator stator positioning rib. Background Art

[0002] The short-circuit of the stator positioning ribs of the existing generators is at the back of the core end, and needs to be assembled when the generator stator is produced. For the generator that has been produced or in operation, the short-circuit structure of the stator positioning ribs cannot be added. Utility Model Content

[0003] In order to solve the above problems existing in the prior art, the purpose of the utility model is to provide a short-circuit structure for the end of the stator positioning rib of a generator, so as to improve the safe operation stability of the end of the generator core, and is particularly suitable for generators that need to increase capacity after being put into operation.

[0004] The technical solution adopted by the utility model is:

[0005] A short-circuit structure for the ends of the stator positioning ribs of a generator comprises an iron core stacked with silicon steel sheets, with pressure rings arranged on both sides of the iron core, the pressure rings being connected to the iron core through the positioning ribs; and a short-circuit copper ring which is respectively connected to one end of all the positioning ribs away from the iron core.

[0006] The utility model provides short-circuited copper rings at both ends of the generator stator core, which are connected to the original positioning ribs. The short-circuited copper rings connect the positioning ribs of the entire circle together to form a short-circuited structure at the ends of the positioning ribs. There is leakage flux at the ends of the generator core, and the leakage flux will increase with the increase of capacity. The utility model reduces the adverse effects of leakage flux on the generator core by short-circuiting the end positioning ribs, improves the safe operation stability of the generator core ends, and is particularly suitable for generators that need to increase capacity after being put into operation, and can also be used for the production and manufacturing of new generators.

[0007] As a preferred solution of the utility model, a tightening nut for tightening the iron core and the pressure ring is threadedly connected to the positioning rib, and an external pressure nut is also threadedly connected to the positioning rib. The external pressure nut is located on the side of the tightening nut away from the iron core, and the inner side of the short-circuit copper ring is pressed between the external pressure nut and the tightening nut. The iron core of the generator is stacked with silicon steel sheets, and the iron core is tightened by the pressure rings at both ends and a certain number of through-length positioning ribs. The short-circuit copper ring is pressed against the tightening nut of the original positioning rib by the external pressure nut to ensure reliable connection.

[0008] As a preferred solution of the utility model, an anti-loosening block is connected between the external pressure nut and the positioning rib by spot welding. The external pressure nut is fixed by spot welding the anti-loosening block and the positioning rib to prevent the external pressure nut from loosening.

[0009] As a preferred solution of the utility model, the surfaces of the external pressure nut and the short-circuit copper ring are silver-plated to improve the electrical performance of the contact surface.

[0010] As a preferred embodiment of the utility model, the short-circuit copper ring includes a short-circuit copper sheet, which is connected to the positioning rib. The other end of the short-circuit copper sheet extends out of the outside of the pressure ring. One end of the short-circuit copper sheet extending out of the pressure ring is connected to a series copper sheet. The series copper sheets in the entire circle are connected end to end in sequence to form a complete circle.

[0011] As a preferred solution of the utility model, the short-circuit copper sheet is fastened to two adjacent series-connected copper sheets by bolts.

[0012] As a preferred solution of the utility model, the series-connected copper sheets are in a planar shape, and the series-connected copper sheets are parallel to the pressing ring.

[0013] As a preferred solution of the utility model, the series copper sheets are arc-shaped, and the series copper sheets are coaxial with the pressure ring.

[0014] As a preferred embodiment of the utility model, the short-circuit copper ring includes a short-circuit arch, both ends of which are respectively connected to two adjacent positioning ribs, and the short-circuit arch bypasses the convex rib of the pressing ring from the side of the pressing ring away from the iron core.

[0015] As a preferred embodiment of the utility model, the short-circuit copper ring includes a short-circuit inclined member, both ends of which are respectively connected to two adjacent positioning ribs, and the short-circuit inclined member bypasses the convex rib of the pressing ring from the side of the pressing ring away from the iron core, and a section of the short-circuit inclined member bypassing the convex rib is parallel to the inclined surface of the convex rib.

[0016] The beneficial effects of the utility model are:

[0017] The utility model provides short-circuited copper rings at both ends of the generator stator core, which are connected to the original positioning ribs. The short-circuited copper rings connect the positioning ribs of the entire circle together to form a short-circuited structure at the ends of the positioning ribs. There is leakage flux at the ends of the generator core, and the leakage flux will increase with the increase of capacity. The utility model reduces the adverse effects of leakage flux on the generator core by short-circuiting the end positioning ribs, improves the safe operation stability of the generator core ends, and is particularly suitable for generators that need to increase capacity after being put into operation, and can also be used for the production and manufacturing of new generators. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a top view of the utility model in Example 1;

[0019] Figure 2 It is a front view of the utility model in embodiment 1;

[0020] Figure 3 It is a side view of the utility model in embodiment 1;

[0021] Figure 4 It is a front view of the utility model in Example 2;

[0022] Figure 5 It is a side view of the utility model in embodiment 2;

[0023] Figure 6 It is a front view of the utility model in embodiment 3;

[0024] Figure 7 is a side view of the utility model in embodiment 3;

[0025] Figure 8 It is a front view of the utility model in embodiment 4;

[0026] Fig. 9 is a side view of the utility model in embodiment 4;

[0027] Fig.10 It is a schematic diagram of the structure of the iron core and the pressure ring when the short-circuit copper ring is not connected.

[0028] In the figure: 1- iron core; 2- pressure ring; 3- positioning rib; 4- short-circuit copper ring; 5- tightening nut; 6- external pressure nut; 7- anti-loosening block; 41- short-circuit copper sheet; 42- series copper sheet; 43- short-circuit arch piece; 44- short-circuit inclined piece. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0031] Embodiment 1:

[0032] like Figure 1 to Figure 3 , Fig.10As shown, the short-circuit structure of the end of the generator stator positioning rib of this embodiment includes an iron core 1 stacked by silicon steel sheets, with pressure rings 2 arranged on both sides of the iron core 1, and the pressure rings 2 are connected to the iron core 1 through the positioning ribs 3; it also includes a short-circuit copper ring 4, which is respectively connected to the end of all the positioning ribs 3 away from the iron core 1.

[0033] The utility model provides short-circuited copper rings 4 at both ends of the generator stator core 1, and the short-circuited copper rings 4 are connected to the original positioning ribs 3. The short-circuited copper rings 4 connect the positioning ribs 3 of the entire circle together to form a short-circuited structure at the ends of the positioning ribs 3. There is leakage flux at the ends of the generator core 1, and the leakage flux will also increase with the increase of capacity. The utility model reduces the adverse effects of leakage flux on the generator core 1 by short-circuiting the end positioning ribs 3, improves the safe operation stability of the ends of the generator core 1, and is particularly suitable for generators that need to increase capacity after being put into operation, and can also be used for the production and manufacturing of new generators.

[0034] Among them, the positioning rib 3 is threadedly connected with a clamping nut 5 for clamping the iron core 1 and the pressure ring 2, and the positioning rib 3 is also threadedly connected with an external pressure nut 6, which is located on the side of the clamping nut 5 away from the iron core 1, and the inner side of the short-circuit copper ring 4 is clamped between the external pressure nut 6 and the clamping nut 5. The iron core 1 of the generator is made of stacked silicon steel sheets, and the iron core 1 is clamped by the pressure rings 2 at both ends and a certain number of through-length positioning ribs 3. The short-circuit copper ring 4 is clamped on the clamping nut 5 of the original positioning rib 3 by the external pressure nut 6 to ensure reliable connection.

[0035] The external pressure nut 6 is spot-welded with an anti-loosening block 7 between the external pressure nut 6 and the positioning rib 3. The external pressure nut 6 is spot-welded with the anti-loosening block 7 and the positioning rib 3 to prevent the external pressure nut 6 from loosening.

[0036] The surfaces of the external pressure nut 6 and the short-circuit copper ring 4 are silver-plated to improve the electrical performance of the contact surface.

[0037] Specifically, the short-circuit copper ring 4 includes a short-circuit copper sheet 41, which is connected to the positioning rib 3. The other end of the short-circuit copper sheet 41 extends out of the outside of the pressure ring 2. One end of the short-circuit copper sheet 41 extending out of the outside of the pressure ring 2 is connected to a series copper sheet 42. The entire circle of series copper sheets 42 are connected end to end in sequence to form a complete circle.

[0038] The short-circuit copper sheet 41 is fastened to two adjacent series copper sheets 42 by bolts.

[0039] The series copper sheets 42 are in a planar shape and are parallel to the pressing ring 2 .

[0040] Embodiment 2:

[0041] like Figure 4 , Figure 5 and Fig.10As shown, the short-circuit structure of the end of the generator stator positioning rib of this embodiment includes an iron core 1 stacked by silicon steel sheets, with pressure rings 2 arranged on both sides of the iron core 1, and the pressure rings 2 are connected to the iron core 1 through the positioning ribs 3; it also includes a short-circuit copper ring 4, which is respectively connected to the end of all the positioning ribs 3 away from the iron core 1.

[0042] The utility model provides short-circuited copper rings 4 at both ends of the generator stator core 1, and the short-circuited copper rings 4 are connected to the original positioning ribs 3. The short-circuited copper rings 4 connect the positioning ribs 3 of the entire circle together to form a short-circuited structure at the ends of the positioning ribs 3. There is leakage flux at the ends of the generator core 1, and the leakage flux will also increase with the increase of capacity. The utility model reduces the adverse effects of leakage flux on the generator core 1 by short-circuiting the end positioning ribs 3, improves the safe operation stability of the ends of the generator core 1, and is particularly suitable for generators that need to increase capacity after being put into operation, and can also be used for the production and manufacturing of new generators.

[0043] The positioning rib 3 is threadedly connected with a clamping nut 5 for clamping the core 1 and the pressure ring 2. The positioning rib 3 is also threadedly connected with an external pressure nut 6, which is located on the side of the clamping nut 5 away from the core 1, and the inner side of the short-circuit copper ring 4 is clamped between the external pressure nut 6 and the clamping nut 5. The core 1 of the generator is made of stacked silicon steel sheets, and the core 1 is clamped by the pressure rings 2 at both ends and a certain number of through-length positioning ribs 3. The short-circuit copper ring 4 is clamped on the clamping nut 5 of the original positioning rib 3 by the external pressure nut 6 to ensure reliable connection.

[0044] The external pressure nut 6 is spot-welded with an anti-loosening block 7 between the external pressure nut 6 and the positioning rib 3. The external pressure nut 6 is spot-welded with the anti-loosening block 7 and the positioning rib 3 to prevent the external pressure nut 6 from loosening.

[0045] The surfaces of the external pressure nut 6 and the short-circuit copper ring 4 are silver-plated to improve the electrical performance of the contact surface.

[0046] Specifically, the short-circuit copper ring 4 includes a short-circuit arch 43 , two ends of which are respectively connected to two adjacent positioning ribs 3 , and the short-circuit arch 43 bypasses the convex rib of the pressing ring 2 from the side of the pressing ring 2 away from the core 1 .

[0047] Embodiment 3:

[0048] like Figure 6 , Figure 7 and Fig.10 As shown, the short-circuit structure of the end of the generator stator positioning rib of this embodiment includes an iron core 1 stacked by silicon steel sheets, with pressure rings 2 arranged on both sides of the iron core 1, and the pressure rings 2 are connected to the iron core 1 through the positioning ribs 3; it also includes a short-circuit copper ring 4, which is respectively connected to the end of all the positioning ribs 3 away from the iron core 1.

[0049] The utility model provides short-circuited copper rings 4 at both ends of the generator stator core 1, and the short-circuited copper rings 4 are connected to the original positioning ribs 3. The short-circuited copper rings 4 connect the positioning ribs 3 of the entire circle together to form a short-circuited structure at the ends of the positioning ribs 3. There is leakage flux at the ends of the generator core 1, and the leakage flux will also increase with the increase of capacity. The utility model reduces the adverse effects of leakage flux on the generator core 1 by short-circuiting the end positioning ribs 3, improves the safe operation stability of the ends of the generator core 1, and is particularly suitable for generators that need to increase capacity after being put into operation, and can also be used for the production and manufacturing of new generators.

[0050] The positioning rib 3 is threadedly connected with a clamping nut 5 for clamping the core 1 and the pressure ring 2. The positioning rib 3 is also threadedly connected with an external pressure nut 6, which is located on the side of the clamping nut 5 away from the core 1, and the inner side of the short-circuit copper ring 4 is clamped between the external pressure nut 6 and the clamping nut 5. The core 1 of the generator is made of stacked silicon steel sheets, and the core 1 is clamped by the pressure rings 2 at both ends and a certain number of through-length positioning ribs 3. The short-circuit copper ring 4 is clamped on the clamping nut 5 of the original positioning rib 3 by the external pressure nut 6 to ensure reliable connection.

[0051] The external pressure nut 6 is spot-welded with an anti-loosening block 7 between the external pressure nut 6 and the positioning rib 3. The external pressure nut 6 is spot-welded with the anti-loosening block 7 and the positioning rib 3 to prevent the external pressure nut 6 from loosening.

[0052] The surfaces of the external pressure nut 6 and the short-circuit copper ring 4 are silver-plated to improve the electrical performance of the contact surface.

[0053] Specifically, the short-circuit copper ring 4 includes a short-circuit copper sheet 41, which is connected to the positioning rib 3. The other end of the short-circuit copper sheet 41 extends out of the outside of the pressure ring 2. One end of the short-circuit copper sheet 41 extending out of the outside of the pressure ring 2 is connected to a series copper sheet 42. The entire circle of series copper sheets 42 are connected end to end in sequence to form a complete circle.

[0054] The short-circuit copper sheet 41 is fastened to two adjacent series copper sheets 42 by bolts.

[0055] The series copper sheet 42 is arc-shaped and coaxial with the pressing ring 2. The short-circuit copper sheet 41 is connected to the series copper sheet 42 after being bent.

[0056] Embodiment 4:

[0057] like Figure 8 to Figure 10 As shown, the short-circuit structure of the end of the generator stator positioning rib of this embodiment includes an iron core 1 stacked by silicon steel sheets, with pressure rings 2 arranged on both sides of the iron core 1, and the pressure rings 2 are connected to the iron core 1 through the positioning ribs 3; it also includes a short-circuit copper ring 4, which is respectively connected to the end of all the positioning ribs 3 away from the iron core 1.

[0058] The utility model provides short-circuited copper rings 4 at both ends of the generator stator core 1, and the short-circuited copper rings 4 are connected to the original positioning ribs 3. The short-circuited copper rings 4 connect the positioning ribs 3 of the entire circle together to form a short-circuited structure at the ends of the positioning ribs 3. There is leakage flux at the ends of the generator core 1, and the leakage flux will also increase with the increase of capacity. The utility model reduces the adverse effects of leakage flux on the generator core 1 by short-circuiting the end positioning ribs 3, improves the safe operation stability of the ends of the generator core 1, and is particularly suitable for generators that need to increase capacity after being put into operation, and can also be used for the production and manufacturing of new generators.

[0059] The positioning rib 3 is threadedly connected with a clamping nut 5 for clamping the core 1 and the pressure ring 2. The positioning rib 3 is also threadedly connected with an external pressure nut 6, which is located on the side of the clamping nut 5 away from the core 1, and the inner side of the short-circuit copper ring 4 is clamped between the external pressure nut 6 and the clamping nut 5. The core 1 of the generator is made of stacked silicon steel sheets, and the core 1 is clamped by the pressure rings 2 at both ends and a certain number of through-length positioning ribs 3. The short-circuit copper ring 4 is clamped on the clamping nut 5 of the original positioning rib 3 by the external pressure nut 6 to ensure reliable connection.

[0060] The external pressure nut 6 is spot-welded with an anti-loosening block 7 between the external pressure nut 6 and the positioning rib 3. The external pressure nut 6 is spot-welded with the anti-loosening block 7 and the positioning rib 3 to prevent the external pressure nut 6 from loosening.

[0061] The surfaces of the external pressure nut 6 and the short-circuit copper ring 4 are silver-plated to improve the electrical performance of the contact surface.

[0062] Specifically, the short-circuit copper ring 4 includes a short-circuit inclined piece 44, both ends of which are respectively connected to two adjacent positioning ribs 3. The short-circuit inclined piece 44 bypasses the convex rib of the pressing ring 2 from the side of the pressing ring 2 away from the iron core 1, and a section of the short-circuit inclined piece 44 bypassing the convex rib is parallel to the inclined surface of the convex rib.

[0063] The present utility model is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present utility model fall within the protection scope of the present utility model.

Claims

1. A generator stator positioning rib end short-circuit structure, comprising an iron core (1) stacked with silicon steel sheets, with pressure rings (2) arranged on both sides of the iron core (1), the pressure ring (2) and the iron core (1) connected through positioning ribs (3), characterized in that: It also includes a short-circuit copper ring (4), which is respectively connected to one end of all the positioning ribs (3) away from the iron core (1).

2. The generator stator positioning rib end short-circuit structure according to claim 1, characterized in that: The positioning rib (3) is threadedly connected with a clamping nut (5) for clamping the iron core (1) and the pressure ring (2). The positioning rib (3) is also threadedly connected with an external pressure nut (6). The external pressure nut (6) is located on a side of the clamping nut (5) away from the iron core (1). The inner side of the short-circuit copper ring (4) is clamped between the external pressure nut (6) and the clamping nut (5).

3. The generator stator positioning rib end short-circuit structure according to claim 2, characterized in that: An anti-loosening block (7) is connected between the external pressure nut (6) and the positioning rib (3) by spot welding.

4. The generator stator positioning rib end short-circuit structure according to claim 2, characterized in that: The surfaces of the external pressure nut (6) and the short-circuit copper ring (4) are silver-plated.

5. The generator stator positioning rib end short-circuit structure according to claim 1, characterized in that: The short-circuit copper ring (4) comprises a short-circuit copper sheet (41), the short-circuit copper sheet (41) is connected to the positioning rib (3), the other end of the short-circuit copper sheet (41) extends out of the outside of the pressing ring (2), and one end of the short-circuit copper sheet (41) extending out of the outside of the pressing ring (2) is connected to a series copper sheet (42), and a full circle of series copper sheets (42) are connected end to end in sequence to form a full circle.

6. The generator stator positioning rib end short-circuit structure according to claim 5, characterized in that: The short-circuit copper sheet (41) is fastened to two adjacent series-connected copper sheets (42) by means of bolts.

7. The generator stator positioning rib end short-circuit structure according to claim 5, characterized in that: The series copper sheets (42) are in a planar shape, and the series copper sheets (42) are parallel to the pressing ring (2).

8. The generator stator positioning rib end short-circuit structure according to claim 5, characterized in that: The series copper sheets (42) are arc-shaped, and the series copper sheets (42) are coaxial with the pressing ring (2).

9. The generator stator positioning rib end short-circuit structure according to claim 1, characterized in that: The short-circuit copper ring (4) comprises a short-circuit arch (43), two ends of which are respectively connected to two adjacent positioning ribs (3), and the short-circuit arch (43) bypasses the convex rib of the pressing ring (2) from the side of the pressing ring (2) away from the iron core (1).

10. The generator stator positioning rib end short-circuit structure according to claim 1, characterized in that: The short-circuit copper ring (4) comprises a short-circuit inclined member (44), the two ends of which are respectively connected to two adjacent positioning ribs (3), the short-circuit inclined member (44) bypasses the convex rib of the pressing ring (2) from the side of the pressing ring (2) away from the iron core (1), and a section of the short-circuit inclined member (44) bypassing the convex rib is parallel to the inclined surface of the convex rib.

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