CN-224212233-U - Traction structure with heat dissipation function and traction machine

CN224212233UCN 224212233 UCN224212233 UCN 224212233UCN-224212233-U

Abstract

A traction structure with a heat dissipation function and a traction machine comprise a machine base, a stator and a rotor, wherein the machine base is provided with an annular groove, an opening of the groove is exposed out of the annular groove at the front side of the annular groove, a machine base ventilation hole is formed in the side wall of the end face of the annular groove at the rear side of the annular groove, a central column is arranged in the center of the annular groove, an inner ring of the stator is mounted on an outer ring of the central column, the rotor is rotatably connected to the central column, the outer ring of the rotor is located on the outer ring of the stator, the rotor covers the opening of the groove, a traction part for mounting a traction wheel is arranged on the rotor, a rotor ventilation hole is formed in the position of the opening of the groove, the rotor ventilation hole is close to the stator, an air guide inclined side wall is arranged on the rotor ventilation hole, the air guide inclined side wall is inclined to the rotor end face of the rotor, and the rotor ventilation hole, the annular groove and the machine base ventilation hole are communicated. The problem that the radiating effect is poor caused by the fact that the air path is not communicated when the traction machine works is solved.

Inventors

LIANG CHANGYONG
JIANG ZHENHE
XIE YONGHUI
LI DEGUI
Weng Yujun
LIU QINGHUI
YANG DONGWEN
HE XUSHENG

Assignees

合普动力股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250418

Claims (10)

1. The traction structure with the heat dissipation function is characterized by comprising a machine base, a stator and a rotor; The machine seat is provided with an annular groove, an opening of the annular groove is exposed out of the opposite front side, and a machine seat ventilation hole is formed in the side wall of the end face of the annular groove, which is opposite to the rear side; the rotor is provided with a rotor end face close to the opening of the groove, the rotor end face is provided with a rotor vent hole close to the stator, the rotor vent hole is provided with an air guide inclined side wall, the air guide inclined side wall is inclined to the rotor end face and used for guiding air into the rotor in one rotating direction and guiding air out of the rotor in the other rotating direction, and the rotor vent hole, the annular groove and the base vent hole are communicated.
2. The traction structure with the heat dissipation function according to claim 1, wherein the rotor is provided with a rotor inner end surface, and an inner end surface outer ring is arranged at a position, close to the annular groove, of the rotor inner end surface; The inner end surface outer ring is abutted against the annular groove and forms a cooling channel; the rotor is provided with the rotor vent holes at the opposite front of the cooling channel, and the annular groove is provided with the engine base vent holes at the opposite rear of the cooling channel.
3. The traction structure with the heat dissipation function according to claim 2, wherein an inner end surface inner annular groove is formed near the center of the inner end surface of the rotor, and the center column body extends into the inner end surface inner annular groove.
4. The traction structure with the heat dissipation function according to claim 3, wherein the central column extends from the inner end surface inner ring groove to the outer surface of the machine base, the outer surface of the machine base is provided with reinforcing ribs on the outer periphery of the central column, and rib grooves are formed between the reinforcing ribs.
5. The traction structure with heat dissipation function according to claim 2, wherein part of the ventilation holes of the machine base, the stator and the rotor are horizontally aligned.
6. The traction structure with the heat dissipation function according to claim 1, wherein the rotor is provided with a rotor inner end surface, the rotor inner end surface is connected with a rotor yoke, permanent magnets are circumferentially distributed on the inner side wall of the rotor yoke, and the permanent magnets are close to the stator.
7. The traction structure with the heat radiation function according to claim 1, further comprising a first louver and a second louver; The first louver is arranged on the rotor vent hole and shields the rotor vent hole, and a plurality of windows of the first louver and the inclined direction of the air guide inclined side wall are arranged in the same direction; the second shutter is installed in the base vent hole.
8. The traction structure with the heat dissipation function according to any one of claims 1 to 7, further comprising a rotation shaft; The rotating shaft is fixed on the rotor and is rotatably connected with the central column.
9. The traction structure with the heat dissipation function according to claim 8, wherein the rotating shaft and the rotor are integrally combined.
10. A traction machine, characterized in that a traction sheave and a traction structure with a heat radiation function according to any one of claims 1-9 are provided, said traction sheave being mounted to said traction portion.

Description

Traction structure with heat dissipation function and traction machine Technical Field The utility model relates to the field of traction machines, in particular to a traction structure with a heat dissipation function and a traction machine. Background In the permanent magnet synchronous traction machine with the outer rotor structure in the prior art, the stator is surrounded by the rotor and the machine base, the permanent magnets are also in the relative closed space, heat generated by the stator can only be naturally radiated by virtue of the outward conduction of the machine base, and internal hot air cannot be actively discharged to the outside of the machine shell, so that the temperature of the motor is too high, and the performance is reduced. In contrast, in the prior art, a plurality of radial fan blades are cast on the inner end surface of the rotor, the end surface is provided with vent holes, and the corresponding machine base is also provided with vent holes; when the motor rotates, the fan blades drive the air flow to radiate the stator, and the structure can reduce the temperature rise of the motor to a certain extent, but has the following defects that ① fan blades are radially arranged in the rotor near the center, which belongs to the design of a centrifugal fan, and negative pressure is formed at the root of the fan blades when the rotor rotates, and the problem of unsmooth air path is caused because the vent holes are positioned at the outward position of the rotor; In addition, the prior art can directly set up the ventilation hole at the rotor terminal surface, and the ventilation hole is just to stator winding, and when the rotor rotated, disturbance air cooled down to the motor, but the problem that this scheme had is that radiating hole wall and rotation axis are parallel, and when the rotor rotated, radiating hole wall and rotation plane are perpendicular, and the pore wall can not guide the air to flow according to appointed direction, can only disturbance air heat dissipation, can not form great wind pressure and produce ventilation path, and the radiating effect is not good. In summary, the conventional traction machine has the problem that the heat dissipation effect is poor due to the fact that an air path is not communicated during operation. Disclosure of utility model The utility model aims to provide a traction structure with a heat dissipation function, which is characterized in that a rotor is provided with an air guide inclined side wall inclined to the end face of the rotor, and a machine seat ventilation hole is arranged on one side of an annular groove far away from the rotor, so that the heat dissipation function can be achieved only through clockwise rotation and anticlockwise rotation of the rotor on the premise of not introducing an additional heat dissipation structure. To achieve the purpose, the utility model adopts the following technical scheme: a traction structure with a heat dissipation function comprises a machine base, a stator and a rotor; The machine seat is provided with an annular groove, an opening of the annular groove is exposed out of the opposite front side, and a machine seat ventilation hole is formed in the side wall of the end face of the annular groove, which is opposite to the rear side; the rotor is provided with a rotor end face close to the opening of the groove, the rotor end face is provided with a rotor vent hole close to the stator, the rotor vent hole is provided with an air guide inclined side wall, the air guide inclined side wall is inclined to the rotor end face and used for guiding air into the rotor in one rotating direction and guiding air out of the rotor in the other rotating direction, and the rotor vent hole, the annular groove and the base vent hole are communicated. Optimally, the rotor is provided with a rotor inner end face, and an inner end face outer ring is arranged at the position, close to the annular groove, of the rotor inner end face; The inner end surface outer ring is abutted against the annular groove and forms a cooling channel; the rotor is provided with the rotor vent holes at the opposite front of the cooling channel, and the annular groove is provided with the engine base vent holes at the opposite rear of the cooling channel. Preferably, the rotor inner end face is provided with an inner end face inner ring groove near the center, and the center column body extends into the inner end face inner ring groove. Preferably, the central cylinder extends from the inner annular groove of the inner end surface to the outer surface of the base, reinforcing ribs are arranged on the outer periphery of the central cylinder on the outer surface of the base, and rib grooves are formed between the reinforcing ribs. Optimally, a portion of the housing vents, stator and rotor vents are horizontally aligned. Preferably, the rotor is provided with a rotor inner end surface, the rotor inner end surface is connected w