Small lifting hook of asynchronous traction motor
A traction motor, asynchronous technology, applied in the direction of electric components, electrical components, electromechanical devices, etc., can solve the problems such as the small hanger and the stator punching sheet cannot be well fitted, weld cracks, and the lifting ears are prone to breakage, etc. Simple structure, improved mechanical strength, and improved seismic performance
Inactive Publication Date: 2010-03-03
CRRC YONGJI ELECTRIC CO LTD
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Problems solved by technology
[0003] In order to solve the problems that the small hanger of the existing asynchronous traction motor cannot fit well with the stator punch due to structural design defects, resulting in cracks in the weld seam and easy breakage at the root of the lifting lug, the present invention provides a A small hanger for asynchronous traction motor with improved structure
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[0013] The small suspension of the asynchronous traction motor is composed of base 1 and lifting lug 2 connected with the base. The bend 3 is a large transition fillet, and the span (width) of the root of the lifting lug is equal to or close to the width of the base. In this specific embodiment, the small hanger is welded by cast steel or steel plate, the base can be molded or processed to meet the required size, and the installation gap with the frame punch is not greater than 1mm. Weld the small hanger on the full lamination machine base, and leave a certain distance between the two ends welded with the stamping sheet without welding, leaving a welding stress release area to prevent the small hanger and the punching sheet from being deformed by welding.
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The invention relates to parts or fittings of an asynchronous traction motor, in particular to a small lifting hook of the asynchronous traction motor, which can solve the problems of the existing asynchronous traction motor that cracks are generated in the welding seam and the root of a lifting lug is easy to be broken owning to bad attachment between the small lifting hook and a stator punchingsheet caused by structural design defects. The small lifting hook comprises a base and the lifting lug which is connected with the base, the middle of an end surface at the bottom part of the base isdented, the bending part of the root of the lifting lug has a large transition fillet, and the span length of the root of the lifting lug is equal to or approximates to the width of the base. By optimized design of the structure of the small lifting hook of the asynchronous traction motor, the mechanical strength of the small lifting hook even a whole machine base is improved, and simultaneously,the asynchronous traction motor and a locomotive are hung and fixed strongly, thus resisting strong vibration of the motor caused by high-speed and heavy-load running of the locomotive and increasingthe reliability of the whole motor. The small lifting hook has simple structure, convenient use and easy operation and can improve the anti-seismic performance of the motor.
Description
technical field [0001] The invention relates to parts or accessories of an asynchronous traction motor, in particular to a small hanger for an asynchronous traction motor. Background technique [0002] The base of the asynchronous traction motor is composed of stator punched laminations and two cast steel pressure rings supporting the magnetic circuit, welded by a pull plate and a small suspension. The small suspension of the motor is composed of a base and lifting lugs connected to the base constitute. One side of the machine base is connected by holding the shaft, and the other side is fixed on the locomotive suspension device by a small hanger, and the traction motor is suspended under the locomotive bogie. Due to the particularity of the working environment of the locomotive traction motor, the locomotive vibrates greatly during operation. The working environment is poor. The motor suspension is a roll-hugging structure. Although the stator does not participate in the ...
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IPC IPC(8): H02K5/22
Inventor 孟语灵刘金燕
Owner CRRC YONGJI ELECTRIC CO LTD