A kind of slot wedge cutting method and slotting device for electric motor
A motor slot wedge and grooving technology, which is applied to electromechanical devices, using/manufacturing slot locking devices, and manufacturing motor generators, etc., can solve the problem that the slot wedge is difficult to withdraw, reduce the bonding force and friction, and reduce maintenance. cost, efficiency
Active Publication Date: 2022-05-27
CSR ZHUZHOU ELECTRIC CO LTD
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Problems solved by technology
[0018]
The technical problem to be solved in the present invention is to solve the problem that the slot wedge is difficult to exit in the prior art, and the strength and rigidity of the slot wedge are reduced by cutting the slot wedge, so that the slot wedge is easy to withdraw; at the same time, the depth adjustment is adopted The device and the end limit device prevent the insulation layer of the winding from being damaged during the grooving work, improve the efficiency of the groove wedge, and reduce the maintenance cost of the motor
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Embodiment Construction
[0054] The present invention will be further described below through specific embodiments and in conjunction with the accompanying drawings:
[0055] The structure of the motor stator is as follows Figures 1 to 2 Shown: It is mainly composed of iron core 1, winding 2 and slot wedge 3. Slot wedge 3 is inserted into the dovetail slot of iron core 1, and winding 2 is fixed in the embedded slot of iron core 1. When the motor maintenance needs to take out the winding, the slot wedge 3 used to fix the winding 2 needs to be withdrawn from the dovetail slot of the iron core 1 first.
[0056] The existing wedge removal methods are as follows Figures 3 to 4 Shown: the prior art adopts the method of tapping the slot wedge 3 with a hand hammer and a flat chisel to exit, because the slot wedge 3 is closely matched with the dovetail groove, it is difficult to exit; at the same time, it is difficult to maintain the horizontal direction of the knocking direction, and a slight deflection wi...
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The invention provides a slotting method and a slotting device for a motor slot wedge: the strength and stiffness of the slot wedge are reduced by cutting the slot wedge, and the bonding force and friction between the slot wedge and the dovetail slot are reduced force, so that the slot wedge is easy to withdraw. At the same time, the limit plate is used to control the depth of the slot, so as to avoid damage to the winding insulation layer during the slotting process. Using the motor slot wedge cutting method and the slot cutting device of the present invention to cut the slot wedge can greatly improve the efficiency of the slot wedge retreat and reduce the maintenance cost of the motor.
Description
technical field [0001] The invention belongs to the field of motor processing, and in particular relates to a groove wedge cutting method and a groove cutting device for a motor. Background technique [0002] The traction motor stator is mainly composed of windings, slot wedges and iron cores. After the windings are embedded in the iron core slots, slot wedges are embedded in the dovetail slots of the notch to fix the windings, and then the whole stator is treated with VPI dipping paint, and the slot wedges and stator coils are It is solidified into a whole with the iron core, and the slot wedge is required to be withdrawn without damaging the insulation of the stator winding during stator maintenance. [0003] The prior art adopts the method of hitting the slot wedge with a hand hammer and a flat chisel to exit. Since the slot wedge is solidified into a whole with the stator coil and the iron core, it is difficult to knock out, and it is difficult to maintain the horizontal...
Claims
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IPC IPC(8): H02K15/085H02K15/00
CPCH02K15/0018H02K15/085H02K15/00
Inventor 那春龙文亮洪凤平邢少华袁双玲彭慧张建安陈超玉王玉龙
Owner CSR ZHUZHOU ELECTRIC CO LTD