CN-224198976-U - Traction machine utilizing traction wheel to dissipate heat

CN224198976UCN 224198976 UCN224198976 UCN 224198976UCN-224198976-U

Abstract

Utilize radiating hauler of traction sheave relates to the hauler technique, including permanent magnetism synchronous hauler casing, stator and rotor, the pivot, the traction sheave is fixed in wearing out the pivot outside the permanent magnetism synchronous hauler casing, the traction sheave includes the support sleeve, the outer lane that the excircle surface was provided with the rope groove, several flabellum, the flabellum revolute shaft axis evenly distributed and connect between support sleeve, the outer lane, the fan face of flabellum is the acute angle with the contained angle of pivot axis, form wide clearance between the terminal surface of traction sheave, permanent magnetism synchronous hauler casing towards the traction sheave, between the flabellum, wide clearance forms ventilation channel. Compared with the prior art, the permanent magnet synchronous traction machine has the advantages of good heat dissipation performance, convenience in traction wheel replacement, and capability of efficiently cooling the permanent magnet synchronous traction machine without dust entering the traction machine.

Inventors

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

Assignees

合普动力股份有限公司

Dates

Publication Date: 20260505
Application Date: 20250529

Claims (7)

1. Utilize radiating hauler of hauler, including the synchronous hauler casing of permanent magnetism, stator and rotor that sets up in the synchronous hauler casing of permanent magnetism, rotate the epaxial hauler of setting up in the synchronous hauler casing of permanent magnetism, fix the epaxial hauler of wearing out the synchronous hauler casing of permanent magnetism, a serial communication port, the hauler includes the support sleeve, the outer lane that the excircle surface was provided with the rope groove, several flabellum, the flabellum revolutes the axis evenly distributed of rotating shaft and links between support sleeve, the outer lane, the fan face of flabellum is the acute angle with the contained angle of pivot axis, the synchronous hauler casing of permanent magnetism sets up a plurality of heat dissipation muscle towards the terminal surface of hauler, be provided with the clearance between hauler and the terminal surface, between the heat dissipation muscle, the clearance between hauler and the synchronous hauler casing of permanent magnetism face the hauler and the terminal surface of hauler forms ventilation channel.
2. The traction machine using traction sheave heat dissipation according to claim 1, wherein the heat dissipation ribs of the end surface of the permanent magnet synchronous traction machine housing facing the traction sheave are arranged radially.
3. The traction machine using traction sheave heat dissipation according to claim 1 or 2, wherein the stator is fixed to a fixing member in the permanent magnet synchronous traction machine housing, the fixing member being integrally connected to an end surface of the permanent magnet synchronous traction machine housing facing the traction sheave.
4. The traction machine utilizing traction sheave to dissipate heat according to claim 3, wherein the permanent magnet synchronous traction machine casing comprises a first machine base and a first rear end cover, the outer side surface of the first machine base is provided with a cylindrical stator accommodating cavity, the first rear end cover is fixedly connected to a rear end opening of the cylindrical stator accommodating cavity of the first machine base through screws, the first machine base is provided with a front bearing seat, the first rear end cover is provided with a rear bearing seat, the front end of the front bearing seat protrudes out of the end face, the end parts of the radiating ribs are connected to the front end of the front bearing seat protruding out of the end face, one end of a ventilation channel between the radiating ribs is closed, cooling air is smoothly discharged, the fixing member is a stator fixing ring, the fixing member is arranged on the first machine base behind the end face, the stator is sleeved and fixed on the fixing member, the rotor is an outer rotor, the rotor is sleeved and rotatably arranged on the stator in the cylindrical stator accommodating cavity of the first machine base, and the rotor is fixedly connected to the rear end of the rotating shaft in front of the rear bearing seat through a circular plate-shaped connecting piece with the fixing ring fixed on the rotating shaft.
5. The traction machine utilizing traction sheave to dissipate heat according to claim 3, wherein the permanent magnet synchronous traction machine casing comprises a first front end cover with an end face on the outer side and a second machine base with a cylindrical stator accommodating cavity, the first front end cover is fixedly connected to a front end opening of the cylindrical stator accommodating cavity of the second machine base through screws, a front bearing seat is arranged on the first front end cover, a rear bearing seat is arranged on the second machine base, the front end of the front bearing seat protrudes out of the end face, the end parts of the heat dissipation ribs are connected to the front end of the front bearing seat protruding out of the end face, one end of a ventilation channel between the heat dissipation ribs is closed, cooling air is smoothly discharged, the fixing member is a stator fixing ring, the fixing member is arranged on the first front end cover behind the end face, the stator is fixedly sleeved on the fixing member, the rotor is an outer rotor, the rotor is fixedly connected to the rear end of the rotating shaft in front of the rear bearing seat through a circular plate-shaped connecting piece with the fixing ring fixed on the rotating shaft.
6. The traction machine utilizing traction sheave to dissipate heat according to claim 3, wherein the permanent magnet synchronous traction machine casing comprises a third machine base with a cylindrical stator accommodating cavity and a second rear end cover, the outer side surface of the third machine base is an end surface, the second rear end cover is fixedly connected to a rear end opening of the cylindrical stator accommodating cavity of the third machine base through screws, a front bearing seat is arranged on the third machine base, a rear bearing seat is arranged on the second rear end cover, the front end of the front bearing seat protrudes out of the end surface, the end parts of the heat dissipation ribs are connected to the front end of the front bearing seat protruding out of the end surface, one end of a ventilation channel between the heat dissipation ribs is closed, cooling air is smoothly discharged, the fixing member is a side wall of the cylindrical stator accommodating cavity, the stator is fixed on the inner wall of the fixing member, the rotor is an inner rotor, and the rotor is fixed on the rotating shaft.
7. The traction machine utilizing traction sheave to dissipate heat according to claim 3, wherein the permanent magnet synchronous traction machine casing comprises a second front end cover and a fourth machine base, the outer side surface of the second front end cover is provided with a cylindrical stator accommodating cavity, the second front end cover is fixedly connected to the front end opening of the cylindrical stator accommodating cavity of the fourth machine base through screws, a front bearing seat is arranged on the second front end cover, a rear bearing seat is arranged on the fourth machine base, the front end of the front bearing seat protrudes out of the end face, the end parts of the heat dissipation ribs are connected to the front end of the front bearing seat protruding out of the end face, one end of a ventilation channel between the heat dissipation ribs is closed, cooling air is smoothly discharged, the fixing member is a side wall of the cylindrical stator accommodating cavity, the stator is fixed on the inner wall of the fixing member, the rotor is an inner rotor, and the rotor is fixed on the rotating shaft.

Description

Traction machine utilizing traction wheel to dissipate heat Technical Field The utility model relates to a traction machine technology, in particular to a permanent magnet synchronous traction machine utilizing a traction wheel to dissipate heat. Background Most of the existing permanent magnet synchronous traction machines for elevators adopt natural cooling, namely, the surface of a traction machine shell is utilized to contact with air for heat dissipation, heat dissipation is not good necessarily, so that the heat in the traction machine is difficult to dissipate, the temperature of a stator and a rotor is higher, the efficiency, the service life and the safety of the permanent magnet synchronous traction machine are further influenced, and in order to ensure the normal operation of the permanent magnet synchronous traction machine, the permanent magnet synchronous traction machine needs to consider enough large heat dissipation surface area and enough large volume during design, so that the heat load is lower during design, the volume is relatively large, the consumption is more, the cost is high, and the following technical measures are taken to solve the problem: 1. Forced cooling is carried out by adopting an external electric fan, but the scheme has the defects that a fan control circuit and a fan are easy to break down, and a protection circuit is needed to prevent fan faults, so that the application is less; 2. The casing of the traction machine is provided with ventilation holes, the rotor is internally provided with fan blades, cold air is sucked in and hot air is discharged when the rotor rotates, and the scheme has the defects that external dust easily enters the permanent magnet synchronous traction machine when the rotor operates; 3. The traction machine with the heat dissipation structure is designed for CN202410250359.8 in China, and the scheme is that a traction wheel and a rotor are designed into a whole, the traction wheel part is composed of spokes, a fixing sleeve and rope grooves, the spokes are of a flat plate structure, a plurality of fan blades are designed in the flat plate, vent holes are formed in the flat plate, and when the rotor rotates, the fan blades on the flat plate flash air to cool a stator, and the scheme has a certain effect on cooling of the permanent magnet synchronous traction machine, but also has the following defects: ① The fan blades are perpendicular to the spoke flat plates, the axial thrust of the air is limited, and the generated air quantity and air effect are limited; ② The flat plate is provided with vent holes, dust and impurities easily enter the permanent magnet synchronous traction machine, and the permanent magnet synchronous traction machine is in fault; ③ The rotor is supported on the base in a suspending way, and is only suitable for an outer rotor structure, but not for an inner rotor structure; ④ The traction sheave and the rotor are designed into a whole, when the traction sheave is worn, the traction sheave and the rotor are required to be replaced at the same time, and the traction sheave cannot be replaced independently. Disclosure of utility model The utility model aims to provide the traction machine which has good heat dissipation performance, is convenient to replace the traction wheel, can efficiently cool the permanent magnet synchronous traction machine and does not have dust entering the traction machine and dissipates heat by using the traction wheel. The traction machine utilizing the traction wheel to dissipate heat is realized by the following steps: the permanent magnet synchronous traction machine comprises a permanent magnet synchronous traction machine shell, a stator, a rotor, a rotating shaft and a traction wheel, wherein the stator and the rotor are arranged in the permanent magnet synchronous traction machine shell, the rotating shaft is arranged in the permanent magnet synchronous traction machine shell, the traction wheel is fixed on the rotating shaft penetrating out of the permanent magnet synchronous traction machine shell. When the rotary machine is in operation, the rotor drives the rotary shaft to rotate together with the traction wheel, and meanwhile, when the traction wheel rotates, because the included angle between the fan surface of the fan blade and the axis of the rotary shaft is an acute angle, air between the fan blade and the fan blade is axially pushed to flow to the end surface of the permanent magnet synchronous traction machine shell facing the traction wheel, after the cold air encounters the end surface of the permanent magnet synchronous traction machine shell facing the traction wheel and the heat dissipation rib, the direction is changed into radial movement, the cold air is discharged through the gap between the traction wheel and the end surface of the permanent magnet synchronous traction machine shell facing the traction wheel, when the traction wheel rotates clockwise, the air between th