Anti-rotation motor exciter stator pulling and dismounting device

Abstract

The utility model discloses an anti-rotation motor exciter stator pulling and dismounting device, and belongs to the field of generator maintenance and manufacturing. Comprising a bottom plate, a pressing block, an inner hexagonal long bolt, a guide column, a pressing column, a connecting block, a transmission stud, a handle and a thrust ball bearing. The pressing column and the connecting block are assembled in a matched mode, the end face of the shell is pressed tightly during pulling and unloading, and a supporting point for pulling and unloading is provided. The transmission stud penetrates through the bottom plate and is matched with the lower end face of the bottom plate through the thrust ball bearing, sliding friction is replaced with rolling friction, the bottom plate does not rotate along with the transmission stud, the guide column penetrates through the bottom plate and the connecting block, and the bottom plate and the connecting block are synchronous in the rotating process. The four pressing block through grooves slide into the bottom plate track and can be adjusted in a telescopic mode, and the pressing block inverted-T-shaped structure is combined so that the pressing block can penetrate into the motor to clamp the exciter stator. The handle penetrates through the transmission stud to achieve 360-degree torsion of the stud, the connecting block is in threaded fit with the transmission stud, rotary motion is converted into linear motion when the stud is rotated, the stud ascends, and the exciter stator is disassembled.

Description

Technical Field

[0001] This utility model discloses a device for removing the stator of an anti-rotation motor exciter, belonging to the field of generator repair and manufacturing, and applicable to concave exciter structures (see...). Figure 1 ). Background Technology

[0002] The exciter stator windings of a motor are nested on the magnetic poles and fixed to the bushings by fastening screws, typically using an interference fit within the housing. During motor maintenance, the exciter stator needs to be disassembled. However, due to the limited operating space caused by its concave structure, the magnetic poles and windings are easily deformed during disassembly. Furthermore, uneven stress on the exciter stator during disassembly makes horizontal disassembly difficult, and deformation after removal can render it unusable. Because the gaps between the exciter windings are small, during the rotational disassembly process with ordinary disassembly devices, the pull-out end can easily rotate with the handle, contacting the windings and ultimately damaging them. Summary of the Invention

[0003] The purpose of this utility model is:

[0004] A device for removing and dismantling the exciter stator of an anti-rotation motor is proposed. During the dismantling process, the device ensures uniform force distribution, prevents damage to the exciter stator, and allows for reuse of the dismantled exciter stator.

[0005] The technical solution of this utility model is:

[0006] A device for removing and detaching the stator of an anti-rotation motor exciter includes a base plate 1, pressure blocks 2, hexagonal bolts 3, guide posts 4, pressure posts 5, connecting blocks 6, transmission studs 7, and a handle 8. A thrust ball bearing 9, base plate 1, and connecting blocks 6 are sequentially fitted onto the transmission studs 7. The connecting blocks 6 are threadedly connected to the transmission studs 7. The three pressure posts 5 are inserted into the three corresponding slots at the ends of the three claws of the connecting blocks 6. The guide posts 4 pass through the connecting blocks 6 and are fixed together with the base plate 1. The handle 8 is mounted on the upper end of the transmission studs 7. The four pressure blocks 2 are respectively inserted into the four guide rails of the base plate 1 and fixed by the hexagonal bolts 3.

[0007] The base plate 1 adopts a 4-claw symmetrical structure, with a T-slot guide rail on each claw.

[0008] A thrust ball bearing 9 is added between the base plate 1 and the transmission stud 7.

[0009] The pressure block 2 is an inverted inclined trapezoid with an angle of 50°.

[0010] The handle 8 and the transmission stud 7 are fitted together by an interference fit.

[0011] The bottom end of the drive stud 7 is provided with a base.

[0012] The beneficial effects of this invention are:

[0013] A device for removing and dismantling an exciter stator of a motor with anti-rotation features a design that ensures even force distribution and prevents deformation during stator removal. This design also prevents damage to the windings during rotation, allowing the removed stator to be reused. This improves the quality of motor repair. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a concave exciter structure;

[0015] Figure 2 This is the front view of the present utility model;

[0016] Figure 3 This is a top view of the present invention;

[0017] Figure 4 This is a schematic diagram of the compaction block structure;

[0018] Figure 5 This is a schematic diagram of a 4-claw symmetrical structure;

[0019] Figure 6 This is a schematic diagram illustrating the use of this utility model.

[0020] The components are: 1-base plate, 2-pressure block, 3-hexagonal internal bolt, 4-guide post, 5-pressure post, 6-connecting block, 7-drive stud, 8-handle, 9-thrust ball bearing. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 2 , 3 As shown, a stator removal device for an anti-rotation motor exciter includes a base plate 1, pressure blocks 2, hexagonal bolts 3, guide posts 4, pressure posts 5, connecting blocks 6, transmission studs 7, and a handle 8. A thrust ball bearing 9, base plate 1, and connecting blocks 6 are sequentially fitted onto the transmission stud 7. The connecting blocks 6 are threadedly connected to the transmission stud 7. When the stud rotates, the rotary motion is converted into linear motion, causing the stud to rise. The three pressure posts 5 are inserted into the three corresponding slots at the three claw ends of the connecting blocks 6, pressing against the end face of the housing during removal and providing a fulcrum for removal. The guide posts 4 pass through the connecting blocks 6 and are fixed together with the base plate 1. When the transmission stud 7 rotates, the connecting blocks 6 and the base plate 1 are synchronized in angular position, and the guide posts 4 do not rotate with the transmission stud 7. The handle 8 is mounted on the upper end of the transmission stud 7. The four pressure blocks 2 are respectively inserted into the four guide rails of the base plate 1 and fixed by the hexagonal bolts 3.

[0023] The base plate 1 adopts a symmetrical 4-claw structure, with a T-slot guide rail on each claw. When disassembling the exciter stator, the symmetrical structure allows the exciter stator to be pulled out with uniform force.

[0024] A thrust ball bearing 9 is added between the base plate 1 and the transmission stud 7. Rolling friction replaces sliding friction, thereby reducing the friction of the base plate 1 when the transmission stud 7 rotates.

[0025] The pressure block 2 is an inverted trapezoid with an angle of 50°. This 50° angle effectively avoids the ends of the stator assembly windings, preventing damage to the windings. It can also bypass the exciter windings, penetrating deep into the interior to ensure the force is applied to the exciter's steel sleeve. Figure 4 The base plate 1 adopts a 4-jaw symmetrical structure to prevent uneven force distribution and eccentricity of the exciter stator during use. Figure 5 The pressure block 2 can slide in the T-shaped groove of the base plate 1 and is fixed by an internal hexagonal bolt. It can be flexibly extended and retracted during use to meet the needs of different inner diameter sizes.

[0026] The handle 8 and the drive stud 7 are fitted by an interference fit; the bottom of the drive stud 7 is provided with a base.

[0027] Before use, first follow Figure 2 As shown, first insert the transmission stud 7 into the base plate 1, then install the three pressure pins 5 into the corresponding three slots of the connecting block 6. After installing them on the transmission stud 7, assemble the handle 8, connect the base plate 1 and the connecting block 6 with the guide pin 4, and install the four pressure blocks 2 into the four guide rails of the base plate 1 respectively.

[0028] When using (see) Figure 6 First, retract the pressure block 2 into the guide rail. The bottom plate 1 extends into the motor housing. The pressure block 2 extends out according to the condition of the motor winding end, locking the exciter stator bushing. The pressure column 5 presses on the end of the housing. The connecting block 6 and the transmission stud 7 are connected by a threaded structure. The end of the transmission stud 7 is connected to the bottom plate 1 by a thrust ball bearing 9, using rolling friction instead of sliding friction. Rotate the handle 8. The guide column 4 ensures that the connecting block 6 and the bottom plate 1 are in angular position synchronous, preventing the pressure block 2 from moving angularly and damaging the winding. The bottom plate 1 is subjected to force and moves vertically upward with the transmission stud 7, pulling out the exciter stator.

Claims

1. A device for removing a stator of an exciter of an anti-rotation motor, characterized in that, It includes bottom plate (1), pressing block (2), inner hex long bolt (3), guide column (4), pressing column (5), connecting block (6), transmission stud (7), handle (8); thrust ball bearing (9), bottom plate (1), connecting block (6) are successively sleeved on transmission stud (7), connecting block (6) is threadedly connected with transmission stud (7), three pressing columns (5) are installed in three grooves corresponding to the three jaw end portions of connecting block (6), guide column (4) passes through connecting block (6) and bottom plate (1) and is fixed together, assembly handle (8) is installed on the upper end of transmission stud (7), four pressing blocks (2) are respectively installed in four guide rails of bottom plate (1), and fixing is realized through inner hex long bolt (3).

2. The demagnetization apparatus for the stator of the exciter of the anti-rotation motor according to claim 1, characterized in that, The bottom plate (1) adopts a 4-jaw symmetrical structure, and a T-shaped groove guide rail is arranged on each jaw.

3. The demating device of claim 1, wherein: The bottom plate (1) and the transmission stud (7) are provided with a thrust ball bearing (9) therebetween.

4. The demating device of claim 1, wherein: The pressing block (2) is an inverted inclined ladder shape, and the angle is 50°.

5. The demating device of claim 1, wherein: The handle (8) and the transmission stud (7) are matched through interference.

6. The demating device of claim 1, wherein: The bottom end of the transmission stud (7) is provided with a base.

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