CN-117105115-B - Heat dissipation system for permanent magnet direct-drive crane

Abstract

A heat dissipation system for a permanent magnet direct-drive crane comprises a water-cooling permanent magnet direct-drive winding drum and a heat exchange device, wherein the heat exchange device comprises an air drum, a plurality of horn-shaped air guide covers are arranged in the air drum at intervals along the axial direction, the large-diameter ends of the air guide covers are fixedly connected with the inner wall of the air drum, the diameter of the large-diameter ends of the air guide covers is smaller than the inner diameter of the air drum, the small-diameter end of one of the two adjacent air guide covers is inserted into the large-diameter end of the adjacent air guide cover, the large-diameter end of the air guide cover is provided with an annular heat exchange row capable of circulating cooling media, the two adjacent annular heat exchange rows are communicated in series, and a cooling pipeline of the water-cooling permanent magnet direct-drive winding drum is correspondingly communicated with the annular heat exchange row through a circulating pump.

Inventors

• NIE FUQUAN
• LIU HUIZHEN
• Bao Hongzhen
• YANG WENLI
• XU JIN
• NIE YUXUAN
• CAI XIAOJIE
• YANG WENQIANG
• ZHAO HONGYUAN
• YU XIAOMIN
• GAO PEIRAN

Assignees

• 河南科技学院

Dates

Publication Date

20260505

Application Date

20230912

Claims (8)

1. 1. A heat dissipation system for a permanent magnet direct-drive crane is characterized by comprising a water-cooling permanent magnet direct-drive winding drum (1) and a heat exchange device (2), wherein the heat exchange device (2) comprises an air drum (2-1), multiple horn-shaped air guide rows (2-3) are arranged in the air drum (2-1) at intervals along the axial direction, the large diameter end of each air guide row (2-2) is fixedly connected with the inner wall of the air drum (2-1), the diameter of the large diameter end of each air guide row (2-2) is smaller than the inner diameter of the air drum (2-1), the small diameter end of one air guide row (2-2) in each two adjacent air guide rows (2-2) is inserted into the large diameter end of the adjacent air guide row (2-2), the large diameter end of each air guide row (2-2) is provided with an annular heat exchange row (2-3) capable of circulating cooling media, the cooling pipelines of the water-cooling permanent magnet direct-drive winding drum (1) are correspondingly communicated with the annular heat exchange rows (2-3) through a circulating pump, and the small diameter end of each air guide row (2-4) is provided with a small diameter fan (2-4).
2. 2. The heat dissipation system for the permanent magnet direct-drive crane as claimed in claim 1, wherein the water-cooling permanent magnet direct-drive winding drum (1) comprises a stator winding (1-1) and a winding drum shell (1-2) which is rotationally connected with the stator winding (1-1), a cooling coil (1-3) is arranged on the inner wall of the winding drum shell (1-2), transition devices which are correspondingly communicated with the heat exchange device (2) are respectively arranged at two ends of a main shaft of the stator winding (1-1), the transition devices comprise hollow discs (1-4) which are coaxially and fixedly connected with the main shaft of the stator winding (1-1), the hollow discs (1-4) are rotationally connected with hollow turntables (1-5), the hollow turntables (1-5) are fixedly connected with the winding drum shell (1-2), water inlet ends and water outlet ends of the cooling coil (1-3) are correspondingly communicated with the hollow turntables (1-5) at two ends of the stator winding (1-1) respectively, and the hollow discs (1-4) at two ends of the stator winding (1-1) are correspondingly communicated with the water inlet ends and the water outlet ends of the heat exchange device respectively.
3. 3. The heat radiation system for the permanent magnet direct drive crane according to claim 2 is characterized in that a main shaft of the stator winding (1-1) is a hollow shaft, and two ends of the main shaft are respectively communicated with a water inlet end and a water outlet end of the heat exchange device (2).
4. 4. The heat dissipation system for the permanent magnet direct drive crane, as set forth in claim 1, is characterized in that a plurality of air deflectors (2-5) are circumferentially arranged at intervals in the large diameter end of the air guide cover (2-2).
5. 5. The heat dissipation system for the permanent magnet direct drive crane, as set forth in claim 4, is characterized in that the air deflector (2-5) is spirally arranged along the axial direction of the air deflector (2-2).
6. 6. The heat dissipation system for the permanent magnet direct drive crane according to any one of claims 1, 3 or 4, wherein a smooth closing structure is arranged at a small-diameter end port of the wind scooper (2-2).
7. 7. The heat dissipation system for a permanent magnet direct-drive crane according to any one of claims 1 to 4, wherein fans (2-6) are arranged at two ends of the air duct (2-1).
8. 8. The heat dissipation system for the permanent magnet direct-drive crane, as set forth in claim 1, is characterized in that the air inlet end of the air duct (2-1) is detachably connected with a filter screen, and the air outlet end is detachably connected with a protective net cover.

Description

Heat dissipation system for permanent magnet direct-drive crane Technical Field The invention relates to the technical field of cranes, in particular to a heat dissipation system for a permanent magnet direct-drive crane. Background In the field of cranes, water-cooling permanent magnet direct-drive reels are more and more popular, because the water-cooling permanent magnet direct-drive reels can further reduce the structural size of hoisting equipment, have simple structure and are convenient to maintain, however, in order to ensure the reliability and the safety of the water-cooling permanent magnet direct-drive reels, a high-efficiency heat dissipation device is required to be equipped to prevent the overheating of the permanent magnet direct-drive reels, and most of water-cooling permanent magnet direct-drive reels on the market adopt air cooling heat dissipation in consideration of the frequent transfer positions of some hoisting equipment, but the effect of the air cooling heat dissipation is not ideal, and the shutdown is often required to wait for the cooling of the permanent magnet direct-drive reels, so that the use experience of consumers is affected; Chinese patent (bulletin number: CN 213416089U) discloses a heat abstractor for electric hoist of double-beam crane, this patent is through having set up auxiliary heat abstractor in the right side front end of bottom plate terminal surface, and the user is fixed mechanism and fixing base bottom, and the motor passes through drive mechanism and drives reciprocating mechanism and move left, and then reciprocating mechanism drives the fan and move left to make the fan dispel the heat to electric hoist whole, this heat abstractor whole volume is great, only need produce high-speed air current and can reach better radiating effect, can produce great noise when leading to the operation. Disclosure of Invention In order to overcome the defects in the background art, the invention discloses a heat dissipation system for a permanent magnet direct-drive crane. In order to achieve the aim of the invention, the invention adopts the following technical scheme: A heat dissipation system for a permanent magnet direct-drive crane comprises a water-cooling permanent magnet direct-drive winding drum and a heat exchange device, wherein the heat exchange device comprises an air drum, a plurality of horn-shaped air guide covers are arranged in the air drum at intervals along the axial direction, the large-diameter ends of the air guide covers are fixedly connected with the inner wall of the air drum, the diameter of the large-diameter ends of the air guide covers is smaller than the inner diameter of the air drum, the small-diameter end of one of the two adjacent air guide covers is inserted into the large-diameter end of the adjacent air guide cover, the large-diameter end of the air guide cover is provided with an annular heat exchange row capable of circulating cooling media, the two adjacent annular heat exchange rows are communicated in series, a cooling pipeline of the water-cooling permanent magnet direct-drive winding drum is correspondingly communicated with the annular heat exchange row through a circulating pump, and a cooling fan is arranged in the small-diameter end of the air guide cover. The water-cooling permanent magnet direct-drive winding drum comprises a stator winding and a winding drum shell rotationally connected with the stator winding, wherein a cooling coil is arranged on the inner wall of the winding drum shell, transition devices which are correspondingly communicated with the heat exchange devices are respectively arranged at the two ends of a main shaft of the stator winding, the transition devices comprise hollow discs which are coaxially and fixedly connected with the main shaft of the stator winding, hollow discs are rotationally connected with the outside of the hollow discs, the hollow discs are fixedly connected with the winding drum shell, the hollow discs are correspondingly communicated with the hollow discs, the water inlet end and the water outlet end of the cooling coil are correspondingly communicated with the hollow discs at the two ends of the stator winding respectively, and the hollow discs at the two ends of the stator winding are correspondingly communicated with the water inlet end and the water outlet end of the heat exchange device respectively. Preferably, the main shaft of the stator winding is a hollow shaft, and two ends of the main shaft are correspondingly communicated with the water inlet end and the water outlet end of the heat exchange device respectively. Preferably, a plurality of air deflectors are arranged in the large-diameter end of the air guide cover at intervals along the circumferential direction. Preferably, the air deflector is spirally arranged along the axial direction of the air guiding cover. Preferably, a smooth closing structure is arranged at the small-diameter end port of the air guide cov