Iron core manufacturing device

Abstract

The utility model provides an iron core manufacturing device. The iron core manufacturing device comprises a left side limiting plate, a lower pre-pressing plate, a right side limiting plate, a supporting seat and an auxiliary supporting frame, wherein auxiliary supporting frames are arranged at the two ends of the bottom of the lower pre-pressing plate correspondingly; a plurality of supporting seats are arranged between the two auxiliary supporting frames; the top of each supporting seat is connected with the bottom of the lower pre-pressing plate; wherein the left side limiting plate and the right side limiting plate are respectively fixed at the left end and the right end of the lower pre-pressing plate; wherein a plurality of supporting bosses are arranged on the lower pre-pressing plate. According to the utility model, the sizes such as the side location degree, the tooth opening, the outer circle profile tolerance and the interlayer height of the iron core are effectively ensured, and the manufacturing of the iron core under stator petal brackets with different sizes is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor stator preparation field especially relates to a core making device. BACKGROUND

[0002] The stator lobe is a kind of special structure stator that divides direct-drive wind-driven generator stator into several parts, and the wind-driven generator with the structure has the advantages of low transportation cost, small fault loss and convenient maintenance, but compared with ordinary direct-drive wind-driven generator, the manufacturing process is more complex, the manufacturing difficulty is greater, and the manufacturing requirement is more stringent. Due to the reasons of high height of stator lobe core, high shape and position tolerance requirement, high positioning accuracy of support, etc., the core size control has certain difficulty. When the existing direct-drive wind-driven generator stator lobe is made, due to the reasons of tooling and process method, the problems that the core side position, tooth tension, outer circle contour and interlayer height are difficult to guarantee exist. SUMMARY

[0003] To solve the above problems, the application discloses a kind of core making device, can be used for the core making of stator lobe, first by guaranteeing the perpendicularity and parallelism of stator lobe support, to effectively guarantee the size such as core side position, tooth tension, outer circle contour and interlayer height, realize the core making under the stator lobe support of different sizes.

[0004] A kind of core making device, including left limit plate, lower pre-pressing plate, right limit plate, support seat, auxiliary support frame;Wherein the bottom of lower pre-pressing plate is equipped with auxiliary support frame at both ends respectively;Several support seats are equipped between two auxiliary support frames;The top of each support seat is connected with the bottom of lower pre-pressing plate;Wherein left limit plate and right limit plate are respectively fixed at the left and right ends of lower pre-pressing plate;Wherein several support bosses are equipped on the lower pre-pressing plate.

[0005] Further, the bottom of each support seat is connected with the ground through foundation bolt.

[0006] Further, the lower surface of auxiliary support frame is connected with the ground through foundation bolt, and the upper surface is connected with lower pre-pressing plate through adjusting screw rod. The horizontal height of lower pre-pressing plate can be adjusted by adjusting screw rod.

[0007] Further, a locking hole is provided on each support boss to support the flange surface of stator lobe, and the locking hole is fixed by locking bolt.

[0008] Further, the rear side of lower pre-pressing plate is provided with an extension plate.

[0009] The device completes core compression through pre-pressing hole and pressing plate placing groove, and the extension plate is used to support height vernier caliper to complete height measurement.

[0010] Furthermore, the bottoms of the left and right limiting plates are fastened to the mounting holes of the lower preload plate by locking bolts; the limiting contact surfaces of the left and right limiting plates are provided with stepped structures, which divide them into the side contact surface of the bracket and the limiting surface of the lamination; the step difference depends on the difference between the side of the bracket and the side of the core.

[0011] Furthermore, the left and right limiting plates are made of tool steel.

[0012] Furthermore, the lower preload plate is also provided with a pressure plate groove and a preload hole.

[0013] The iron core manufacturing device proposed in this utility model can complete the manufacturing of non-circular stator iron cores. It adopts a support structure of a base plate and two side limiting plates to ensure the verticality of the iron core, and to meet the requirements of iron core tooth tension, interlayer height and outer circle contour. It utilizes the stepped shape provided by the left and right limiting plates. The supporting boss can be disassembled to meet the needs of iron core hoisting.

[0014] The beneficial effects of this utility model are: it can be used not only for the production of stator cores for direct-drive wind turbines, but also for the production of stator cores for semi-direct-drive and doubly-fed generators when stator segmentation is required; it can guarantee the dimensions of the stator core side profile, tooth width, and outer circle profile in one go; and it can guarantee the verticality and parallelism of the stator support. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of this utility model;

[0016] Figure 2 , Figure 1 Top view;

[0017] Figure 3 Schematic diagram of the lower preload plate;

[0018] Figure 4 , Figure 2 Top view;

[0019] Figure 5 Schematic diagram of stator core verticality Figure 1 ;

[0020] Figure 6 Schematic diagram of stator core verticality Figure 2 ;

[0021] Figure 7 A schematic diagram of the stepped structure of this utility model;

[0022] List of reference numerals in the attached diagram:

[0023] Wherein 1-left side limiting plate; 2-lower pre-pressure plate; 3-right side limiting plate; 4-support seat; 5-auxiliary support frame; 21-pressure plate groove; 22-pre-pressure hole; 6-adjusting screw; 7-locking hole; 8-extension plate; 9-support boss. Detailed Implementation

[0024] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] like Figures 1-7 As shown, a core manufacturing device according to this embodiment includes a left limiting plate 1, a lower preload plate 2, a right limiting plate 3, a support base 4, and an auxiliary support frame 5. The lower preload plate 2 has auxiliary support frames 5 at both ends of its bottom. A plurality of support bases 4 are provided between two auxiliary support frames 5. The top of each support base 4 is connected to the bottom of the lower preload plate 2. The bottom of each support base 4 is connected to the ground via anchor bolts. The lower surface of the auxiliary support frame 5 is connected to the ground via anchor bolts, and its upper surface is connected to the lower preload plate 2 via adjusting screws 6.

[0026] The left limiting plate 1 and the right limiting plate 3 are respectively fixed to the left and right ends of the lower preload plate 2; the bottom of the left limiting plate 1 and the right limiting plate 3 are fastened to the mounting holes of the lower preload plate 2 by locking bolts; the limiting contact surfaces of the left limiting plate 1 and the right limiting plate 3 are provided with a stepped structure, which divides them into the bracket side contact surface A and the punch limiting surface B; the material of the left limiting plate 1 and the right limiting plate 3 is tool steel.

[0027] The lower preload plate 2 is provided with a plurality of support bosses 9; each support boss 9 is provided with a locking hole 7. The lower preload plate 2 is also provided with an extension plate 8, a pressure plate groove 21 and a preload hole 22.

[0028] The left limiting plate 1 is fixed to the left side of the stator lobe bracket with bolts. The lower surface of the right limiting plate 3 is fixed to the lower preload plate 2 with bolts, and its side is connected to the right side of the stator lobe bracket with bolts to match the reference surface of the stator lobe bracket side, ensuring the positional accuracy of the core outline. The difference between the bracket side and the core side is used to design the two limiting plates to ensure the core side outline accuracy; a detachable support boss is used to meet the core hoisting requirements. Core compression and core bolt tightening are completed through the preload holes, pressure plate placement slots, and bolt fastening holes on the lower preload plate 2. The extension plate is used to support a height vernier caliper for height measurement.

[0029] The embodiment guarantees the verticality of the stator lobe support in front and back, left and right by the left limiting plate 1, the lower pre-pressing plate 2, the right limiting plate 3, the support seat 4, the auxiliary support frame 5 and the like, prevents the front and back, left and right from being inclined, and guarantees the tooth tension and the interlayer height requirement. After installation, the verticality of the support is detected by using a detection instrument, and after confirmation of qualification, the laminations can be stacked. Figure 5 and 6 as shown.

[0030] The technical means disclosed in the present application scheme are not limited to the technical means disclosed in the above-mentioned embodiments, and also include technical solutions composed of any combination of the above technical features.

Claims

1. A core manufacturing apparatus, characterized in that: It includes left side limiting plate (1), lower pre-pressing plate (2), right side limiting plate (3), support seat (4) and auxiliary support frame (5), wherein the bottom of the lower pre-pressing plate (2) is provided with auxiliary support frame (5) at both ends; a plurality of support seats (4) are arranged between the two auxiliary support frames (5); the top of each support seat (4) is connected with the bottom of the lower pre-pressing plate (2); wherein the left side limiting plate (1) and the right side limiting plate (3) are fixed at the left and right ends of the lower pre-pressing plate (2) respectively; wherein a plurality of support bosses (9) are arranged on the lower pre-pressing plate (2).

2. A core making apparatus as defined in claim 1, characterized in that: The bottom of each support seat (4) is connected with the ground through a foundation bolt.

3. A core making apparatus as defined in claim 1, wherein: The lower surface of the auxiliary support frame (5) is connected with the ground through a foundation bolt, and the upper surface is connected with the lower pre-pressing plate (2) through an adjusting screw (6).

4. A core making apparatus as defined in claim 1, wherein: Each support boss (9) is provided with a locking hole (7).

5. A core making apparatus as defined in claim 1, wherein: The rear side of the lower pre-pressing plate (2) is provided with an extension plate (8).

6. A core making apparatus as defined in claim 1, wherein: The bottom of the left side limiting plate (1) and the right side limiting plate (3) is fastened in the mounting hole of the lower pre-pressing plate (2) through locking bolts; wherein the limiting contact surface of the left side limiting plate (1) and the right side limiting plate (3) is provided with a stepped structure, which is divided into a bracket side contact surface (A) and a punching limiting surface (B).

7. A core making apparatus as defined in claim 6, characterized in that: The material of the left side limiting plate (1) and the right side limiting plate (3) is tool steel.

8. A core making apparatus as defined in claim 1, wherein: The lower pre-pressing plate (2) is further provided with a pressing plate groove (21) and a pre-pressing hole (22).

Images