Stator pressing ring and lightweight traction motor base with improved structure
A stator and frame technology, which is applied in the field of lightweight traction motor frames, can solve the problems of high torque motor frames and heavy weight.
Inactive Publication Date: 2021-04-27
CRRC YONGJI ELECTRIC CO LTD
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Problems solved by technology
[0003] The invention aims to solve the technical problem that the weight of the existing high-torque motor frame is too large, and provides a stator pressure ring and a lightweight traction motor frame with improved structure
Method used
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Embodiment Construction
[0016] refer to Figure 1-Figure 4 , a stator pressure ring and a light-weight traction motor frame according to the present invention are described in detail.
[0017] A stator pressure ring, including an inner ring 1 and an outer ring 2, the outer ends of the inner ring 1 and the outer ring 2 are connected through a side wall 3 so that the radial section of the stator pressure ring body is n-shaped, and the inner ring 1 is opened with several A ventilation hole 4 to facilitate the heat dissipation of the stator core 12, a reinforcing rib 5 is provided between the inner ring 1 and the outer ring 2 of the adjacent ventilation hole 4, and a weight-reducing groove is provided on the end surface of the inner ring 1 that is in contact with the stator core 12 6. Utilizing the supporting effect of the reinforcing rib 5 on the two end faces of the stator pressure ring not only reduces the weight of the stator pressure ring but also ensures the rigidity and impact resistance level. ...
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The invention relates to a motor base, particularly relates to a stator pressing ring and a light traction motor base with an improved structure and solves technical problems in the background art. The stator pressing ring comprises an inner ring and an outer ring, wherein outer ends of the inner ring and the outer ring are connected through a side wall, a plurality of vent holes are formed in the inner ring, and reinforcing ribs are arranged between the inner ring and the outer ring of the adjacent vent holes; a weight reduction groove is formed in the inner ring; the machine base comprises a transmission end stator pressing ring and a non-transmission end stator pressing ring, a stator iron core is arranged between the transmission end stator pressing ring and the non-transmission end stator pressing ring in a laminated and matched mode, and a plurality of pull plates are arranged on the periphery of the stator iron core. The stator pressing ring adopts a multi-rib and thin-wall structure, so the weight of the stator pressing ring is reduced while rigidity is ensured and impact resistance is improved; according to the traction motor base, light weight is achieved through the stator pressing ring, axial impact resistance of the base and overall rigidity of the base are improved, and on the premise that the output torque of a motor is guaranteed, the mass of the motor is reduced, and the material utilization rate is increased.
Description
technical field [0001] The invention relates to a motor frame, in particular to a stator pressure ring and a lightweight traction motor frame with improved structure. Background technique [0002] The development of motor technology has become more and more mature, especially in the field of rail transportation, the performance of traction motors is getting better and better, the output torque is getting bigger and bigger, and the quality of the motors is also increasing, and the utilization rate of the motors has not been greatly improved. At present, the traction motor frame mainly adopts the following structure: casting frame, using ductile iron integral casting frame, after processing the internal cavity of the frame, the stator core is shrunk. The traditional casting machine base is heavy and takes up a lot of space; the traditional stator pressure ring is mostly made of solid and thick-walled structural parts. Although the reliability meets the use requirements, the ov...
Claims
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IPC IPC(8): H02K1/18H02K1/20H02K5/04H02K5/06
CPCH02K1/18H02K1/185H02K1/20H02K5/04H02K5/06H02K2213/03
Inventor 赵鑫梁刚饶艳虎王宇航
Owner CRRC YONGJI ELECTRIC CO LTD