WO2000052808A1 - Procede de modification du moteur d'entrainement d'un vehicule de type ouvert - Google Patents

Procede de modification du moteur d'entrainement d'un vehicule de type ouvert Download PDF

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Publication number
WO2000052808A1
WO2000052808A1 PCT/JP1999/000928 JP9900928W WO0052808A1 WO 2000052808 A1 WO2000052808 A1 WO 2000052808A1 JP 9900928 W JP9900928 W JP 9900928W WO 0052808 A1 WO0052808 A1 WO 0052808A1
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WO
WIPO (PCT)
Prior art keywords
fan
housing
open
driving
remodeling
Prior art date
Application number
PCT/JP1999/000928
Other languages
English (en)
Japanese (ja)
Inventor
Hiroaki Mita
Seikichi Masuda
Hayato Imai
Shuji Aizawa
Takeshi Hashimoto
Eiki Masaoka
Toshio Nemoto
Original Assignee
Hitachi, Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi, Ltd. filed Critical Hitachi, Ltd.
Priority to JP2000603136A priority Critical patent/JP3855660B2/ja
Priority to PCT/JP1999/000928 priority patent/WO2000052808A1/fr
Publication of WO2000052808A1 publication Critical patent/WO2000052808A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/0006—Disassembling, repairing or modifying dynamo-electric machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

Definitions

  • the present invention relates to a method for remodeling an open-type motor for driving a vehicle with a dust filter, and to a remodeling for an open-type motor for driving a vehicle which essentially eliminates the need for a dust filter and extends maintenance and inspection periods. It provides a method. Background technology
  • the former motor is the mainstream as an open-type motor for driving a vehicle, but recently there is a high demand for extending the maintenance return to the former motor.
  • the reason is that the dust removal function of the dust removal filter in the former motor is incomplete, so dust that cannot be removed by the dust removal filter enters the machine and accumulates in the machine over a long period of operation. This was because it was necessary to perform disassembly and cleaning every 5 or 6 years.
  • the present inventor paid attention to the latter motor that can remove dust without a dust filter.
  • the latter motor which has two rooms, Requires large dimensions in the axial direction, complicates the structure for removing dust, and may increase the failure potential.
  • the dust removal function cannot be fully exhibited unless two rooms pass through, so the room closer to the cabin cannot be omitted. If the room close to the cabin is omitted, the dust contained in the outside air will enter the cabin and accumulate in the cabin over a long period of operation, requiring periodic disassembly and cleaning like the former motor. .
  • the present invention has been made in view of the above circumstances, and provides a method for converting an existing open-type motor for driving a vehicle with a dust filter to a motor capable of removing dust without a dust filter. It also provides a method that can convert existing open-type motors for driving vehicles with dust filters to motors that can extend maintenance return. It also provides a method to convert an existing open motor for vehicle drive with a dust filter into a highly reliable motor that can extend maintenance return without increasing the failure potential. In addition, the present invention provides a method for improving the cooling efficiency of a bearing device on the exhaust side of a cooling wind, for example, a motor that can be modified into an open-type electric motor for driving a vehicle, which can suppress a rise in temperature.
  • the basic feature of the present invention is to make the best use of the fact that the suction fan of an existing open-type motor for driving a vehicle with a dust filter is mounted in a closing member bulging in the axial direction of the motor. It is.
  • the feature is that the suction fan and the push fan are exchanged in the installation space for the suction fan. As a result, the direction of the air flow circulating in the cabin is opposite to the conventional direction.
  • a method for remodeling an open-type motor for driving a vehicle includes a housing 1 for holding a stator, a rotor having a suction fan 14 and a rotating shaft 7, and a pair of bearing devices 1 for supporting the rotating shaft 7. 2, 1 3, one of the bearing devices 12 and a vehicle drive opening equipped with a dedusting filter 1 2 installed in the intake air inlet 17 formed by the suction fan 14 and the suction fan 14 Modification of the die motor involves the following steps.
  • An exhaust hole 19 is formed in the housing 2 at a position corresponding to the intake hole 17.
  • a method for remodeling an open-type motor for driving a vehicle includes a housing 1 for holding a stator, a rotor having a suction fan 14 and a rotating shaft 7, and a pair of bearing devices 1 for supporting the rotating shaft 7. 2, 13 and an open-type motor for driving a vehicle equipped with a dust-removing filter 22 installed in an intake hole 17 formed by a closing member 8 attached to one of the bearing devices 12 and an intake fan 14. This involves the following steps.
  • the opening / closing member 8 is replaced with a closing member 9 that surrounds the push-in fan 15, has the air inlet 18, and forms the dust exhaust hole 21 together with the housing 2.
  • An exhaust hole 19 is formed at a position corresponding to the intake hole 17 of the housing 2.
  • the method for modifying an open-type motor for driving a vehicle according to the first or second invention is characterized in that the airflow impinges on the bearing device 13 near the bearing device 13 on the side corresponding to the exhaust hole 19.
  • the means for preventing the collision of the air flow with the bearing device 13 is the fan 16.
  • the push-in fan 15 includes a fan main plate 15a on the stator side and a fan vane 1 on the side opposite to the stator. 5 b.
  • the housing 2 and the closing member 9 after the remodeling may use the housing 1 and the closing member 8 before the remodeling to form the air inlet 18 and the exhaust hole 19.
  • the closing member 10 attached to the bearing device 13 is removable, the closing member 11 may be replaced at the time of the above modification. Alternatively, it may be used as it is, and may be selected as appropriate.
  • a method for modifying an open-type motor for driving a vehicle comprising: a rotor having a stator and a suction fan in a first housing having an intake / exhaust hole; The first housing is closed, and one side of the first housing is closed with a closing member, and an open-type motor for driving a vehicle, in which a dust filter is attached to the air inlet, is remodeled.
  • the pushing fan provided so as to be on the core side is replaced with the suction fan, and the stator and the rotor having the pushing fan are housed in a second housing having an exhaust hole.
  • One side of the second housing is closed by a closing member having an air inlet formed so as to face the outer side, a dust discharge hole formed so as to face the outer diameter side of the pushing fan, and an annular protrusion.
  • a method for remodeling an open-type motor for driving a vehicle comprising: storing a stator having a stator and a rotor having a suction fan in a first housing having an intake / exhaust hole; And a push-in fan provided with a fan vane so as to be on the side opposite to the iron core of the main plate of the fan.
  • the stator and the second fan are exchanged with a suction fan, and the stator and the second fan are provided in a second housing having an exhaust hole, a dust exhaust hole formed to face an outer diameter side of the pushing fan, and an annular protrusion. Is carried out through a series of steps of accommodating a rotor having an opening and closing one side of the second housing with a closing member having an air inlet formed so as to face the inner diameter side of the pushing fan.
  • a method for remodeling an open-type motor for driving a vehicle wherein a stator having a stator and a rotor having a suction fan is accommodated in a housing having an intake / exhaust hole, and one side of the housing is a first closing member.
  • the motor is an open-type motor for driving a vehicle in which a dust filter is attached to the air inlet, and a fan vane is provided on the side opposite to the iron core of the fan main plate.
  • the suction fan is exchanged with the suction fan, and an exhaust hole of the cooling air using the air inlet and a dust exhaust hole using the exhaust hole are formed in the housing, and are opposed to an outer diameter side of the push fan.
  • the housing is formed with an annular protruding portion, and the second closing member having an air inlet formed to face the inner diameter side of the pushing fan and the first closing member are exchanged. This is done through a series of steps.
  • a method for remodeling an open-type motor for driving a vehicle comprising: housing a rotor having a stator and a suction fan in a housing having an intake / exhaust hole;
  • a fan van is provided so as to be on the non-core side of a fan main plate and the suction fan.
  • a fan is exchanged, and an exhaust hole using the air inlet is formed in the housing, and an air inlet formed so as to face an inner diameter side of the pushing fan and an outer diameter side of the pushing fan are formed so as to face the outer diameter side of the pushing fan.
  • the annular projection may include an annular dust separating member having an inner diameter larger than an outer diameter of the pushing fan.
  • the cooling air flow straightening plate provided on the first housing is provided or processed by processing the cooling air flow straightening plate provided on the first housing.
  • On the side corresponding to the exhaust hole provided in the second housing there is provided means for preventing air from colliding with the bearing device in proximity to the bearing device. This means is a fan or a current plate.
  • the method for modifying an open-type motor for driving a vehicle may further comprise: an inlet hole formed on the exhaust port side of the second housing; A pipe for communicating with the exhaust hole is provided.
  • the number of fan vanes of the push-in fan and the number of air holes formed in the closing member are a combination of numbers that are indivisible.
  • the space distance between the inner diameter side of the fan vane of the pushing fan and the air inlet formed in the closing member is set to 30 mm or more.
  • the ⁇ first '' attached to the front of the housing or closing member indicates that it is the motor before modification, and the ⁇ second '' is that of the motor after modification. Show.
  • a seventh aspect of the present invention there is provided a method of modifying an open-type motor for driving a vehicle, wherein the stator has a stator and a rotor having a push-in fan on one side of a rotary shaft in a storage container having an inlet / outlet hole.
  • This is a modification of the open-type motor, in which an auxiliary fan is installed on the other side of the rotating shaft.
  • a rectifying plate may be attached instead of the auxiliary fan.
  • the motor is included in the outside air taken into the machine without a dust filter. It is possible to obtain an open-type motor for driving a vehicle that can remove dust and can be cooled by outside air that does not contain in-machine dust. Therefore, it is possible to solve the problem of providing a method that can be modified into an electric motor capable of removing dust without a dust filter. In addition, it is possible to solve the problem of providing a method that can be modified into an electric motor in which maintenance return is prolonged.
  • the open-type vehicle drive according to the seventh aspect of the present invention can solve the problem of providing a highly reliable electric motor that can be extended in maintenance return without increasing a failure potential by a method that can be modified.
  • the motor remodeling method by performing the above-mentioned remodeling, the bearing device on the exhaust side of
  • an open-type electric motor for driving a vehicle can be obtained in which the cooling air directly hits and the heat of the high-temperature cooling air can be suppressed from being trapped in the space. Therefore, it is possible to improve the cooling efficiency of the bearing device on the cooling air exhaust side, for example, to suppress a rise in temperature. It is possible to solve the problem of providing a method that can be modified into an open-type motor for driving a vehicle.
  • FIG. 1 is a cross-sectional view showing the structure of an open-type motor for driving a vehicle according to an embodiment of the present invention, showing the structure after modification.
  • FIG. 2 is an external view showing the upper external configuration of FIG.
  • FIG. 3 is an external view showing the external configuration of the left side of FIG.
  • FIG. 4 is an external view showing the external configuration of the right side of FIG.
  • FIG. 5 is a work process diagram showing a procedure for modifying an open-type motor for driving a vehicle according to an embodiment of the present invention.
  • 6 to 19 are cross-sectional views showing a modified state of the open-type motor for driving a vehicle along the work process diagram of FIG.
  • FIG. 20 is a cross-sectional view showing the structure of an existing open-type motor for driving a vehicle with a dust filter, showing the structure before the remodeling method of the present invention is applied.
  • FIGS. 1 to 20 are drawings for explaining a method of modifying an open-type motor for driving a vehicle according to the present invention
  • FIGS. 1 to 4 show the structure of the open-type electric motor for driving a vehicle after the modification
  • Fig. 5 shows the modification procedure
  • Fig. 6 to Fig. 19 show the modification state according to the modification procedure in Fig. 5
  • Fig. 20 shows the existing vehicle drive with dust filter 1 shows the structure of an open electric motor.
  • the open-type motor for driving a vehicle is a three-phase induction motor.
  • 1 is a cylindrical stator frame
  • stator frame or casing Or stator frame or casing, and a cylindrical stator core 3 is provided inside.
  • a plurality of slots continuous in the axial direction are formed at predetermined intervals in the circumferential direction on the inner peripheral portion of the stator core 3, and the stator windings are accommodated therein.
  • a rotor core 5 is provided concentrically with the stator core 3 via a gap.
  • a plurality of slots continuous in the axial direction are formed at predetermined intervals in the circumferential direction on the outer peripheral portion of the rotor core 3, and the rotor winding 6 is accommodated therein.
  • a rotating shaft 7 is provided on the center axis of the rotor core 5, and is rotatably supported by bearing devices 12 and 13 provided on both axial sides of the stator frame 1.
  • a plurality of continuous ventilation ducts 25 are formed in the rotor core 5 at predetermined intervals in the circumferential direction in the axial direction at a portion on the inner diameter side of the slot storing the rotor windings 6.
  • stator frame 1 On one axial side of the stator frame 1 (on the exhaust side of the cooling air, on the left side with respect to the stator core 3 and the rotor core 5), a stator, a rotor, and a suction fan 14 described later were housed.
  • annular end bracket 8 (or closing member) for closing one side is provided.
  • a bearing device 12 is fixedly supported on the inner peripheral side of the end bracket 8.
  • the end bracket 8 has a shape projecting to the side opposite to the iron core between the connection portion of the stator frame 1 and the connection portion of the bearing device 12.
  • the rotary shaft 7 between the rotor core 5 and the bearing device 12 is provided with a suction fan 14.
  • the suction fan 14 includes a fan main plate 14a, a fan vane 14b, and a side plate 14c.
  • the fan main plate 14a is an annular member extending radially along the shape of the end bracket 8, in other words, a rotor iron. It is an annular member formed so as to become more distant from the rotor core 5 as it moves radially away from the fixed part of the iron core retainer 26 of the core 5.
  • a plurality of fan vanes 14b as wing members are provided on the iron core side of the fan main plate 14a.
  • a side plate 14c which is an annular member, is provided on the iron core side of the fan vane 14b.
  • Cooling air discharge holes 20 are provided almost all around the stator frame 1 facing the outer diameter side of the fan vanes 14 b of the suction fan 14.
  • An annular rectifying plate 28 extending radially inward is provided on the inner peripheral surface of the stator frame 1 facing the side plate 14 c of the suction fan 14.
  • the current plate 28 is for stabilizing the flow of the cooling air toward the discharge port 20, and its inner diameter is slightly larger than the outer diameter of the side plate 14c.
  • the other end of the stator frame 1 in the axial direction is a ring-shaped endplate 10 that closes its end. (Or closing member).
  • the end bracket 10 is formed integrally with the stator frame 1 (or formed separately), and has a bearing device 13 fixedly supported on the inner peripheral side thereof.
  • a grease supply device 23 for supplying grease to the bearing device 12 is provided outside the end bracket 8.
  • a speed detecting device 24 for detecting the rotation speed of the rotating shaft 7 is provided outside the end bracket 10.
  • the rotation of the suction fan 14 The cooling air (outside air) is taken into the machine from the air inlet 1 ⁇ ⁇ ⁇ through the filter 1 2 2 by the suction force generated. At this time, the dust contained in the cooling air is removed by the filter 122, but its function has not been sufficient conventionally, and dust that cannot be removed by the filter 122 due to the long-term operation of the motor enters the machine. accumulate.
  • the cooling air taken into the machine flows through the inside of the machine to the exhaust side while cooling the iron core and the like, and is discharged out of the machine through the discharge holes 20.
  • the remodeling procedure of the existing open-type motor for driving a vehicle with a dust filter and the structure of the open-type motor for driving a vehicle after the remodeling will be described with reference to FIGS. 1 to 19. .
  • the existing open motor for driving a vehicle with a dust filter is called the old motor
  • the modified open motor for driving the vehicle is called the new motor.
  • Parts similar to those of the open-type motor for driving a vehicle shown in FIG. 20 are denoted by the same reference numerals.
  • the remodeling procedure described below is merely an example for understanding the present invention, and there are many remodeling methods in addition to the following examples. Therefore, it goes without saying that the scope of the present invention is not limited to the procedures described below.
  • the outer peripheral surface 9a extends almost horizontally from the connection of the stator frame 1 to the side opposite to the core in the axial direction
  • the inner peripheral portion 9a extends from the connection of the bearing device 12 to the side opposite to the core in an oblique radial direction. It is composed of a peripheral surface portion 9b, and a side surface portion 9c extending substantially perpendicularly by connecting the outer peripheral surface portion 9a and the inner peripheral surface portion 9b.
  • the portion corresponding to the outer peripheral surface portion 9a may also serve as the stator frame 2.
  • the end bracket 9 has a discharge hole 21 (or a discharge hole) for discharging cooling air containing dust on an outer peripheral surface portion 9a facing an outer diameter side of a fan vane 15b of a push fan 15 described later.
  • One exhaust pipe and multiple intake holes 18 (or intake pipes) for taking in cooling air (outside air) at the inner peripheral surface 9 b facing the inner diameter side of the fan vane 15 b.
  • the fan vanes 15b, the inlet holes 18 and the outlet holes 21 of the push-in fan 15 described later are arranged substantially on the same straight line when the end bracket 9 is mounted on the stator frame 2. It has become so.
  • the stator frame 2 also serves as the portion corresponding to the outer peripheral surface portion 9a, one discharge hole 21 is provided in the stator frame 2 portion facing the outer diameter side of the fan vane 15b.
  • the end bracket 9 is provided with a dust separating member 9 d which is an annular protruding portion protruding toward the inner diameter side at an outer peripheral surface portion 9 a facing the outer diameter side of the fan main plate 15 a of the push-in fan 15 described later. It is a thing.
  • the inner diameter of the dust separating member 9 d is larger than the outer diameter of the fan main plate 15 a of the pushing fan 15 described later, and the cross-sectional area of the gap sandwiched therebetween, that is, the cooling air passage area is the outer peripheral surface 9 a. It is designed to be larger than the ventilation area of the air inlet 21 provided in the air hole.
  • the dust separation member 9 d is integrated with the end bracket 9.
  • the rectifying plate 28 provided on the old motor may be machined and attached to the above-mentioned portion.
  • the current plate 27 before removing the stator core 3 from the stator frame 1 of the old motor described later, remove the current plate 28 and process it, After the stator core 3 is mounted on the rectifier plate 28, which has been machined, is installed.
  • the auxiliary fan 16 is composed of a fan main plate 16a, a fan vane 16 and a side plate 16c, as shown in FIG.
  • the fan main plate 16a is an annular member that extends radially outward almost along the shape of the bearing cover 13a of the bearing device 13; in other words, rotates as it moves radially away from the connection of the iron core holder 27.
  • An annular member formed so as to be away from the core 5.
  • a plurality of fan vanes 16b as wing members are provided on the iron core side of the fan main plate 16a.
  • a side plate 16c which is an annular member, is provided on the iron core side of the fan vane 16b. Note that the side plate 16c of the auxiliary fan 16 may be omitted, or a rectifying plate using only the fan main plate 16a may be used. (Modification procedure 180)
  • the push fan 15 is composed of a fan main plate 15a, a fan vane 15h and a side plate 15c.
  • the fan main plate 15a extends along the inner peripheral surface 9b of the end bracket 9 to the side opposite to the iron core and bends, and the annular member extends radially outward along the side surface 9c of the end bracket 9.
  • it is an annular member formed so as to move away from the rotor core 5 as it goes radially away from the connection portion of the iron core pin 26.
  • it is an annular member including a portion parallel to the side surface portion 9c of the end bracket 9 and an inclined portion curved from the parallel portion and extending to the connection portion of the iron core 26.
  • a plurality of fan vanes 15b which are wing members, are provided on the end bracket 9 side (anti-core side) of the fan main plate 15a.
  • a side plate 15c which is an annular member, is provided on the end bracket 9 side (non-iron side) of the fan vane 15b. The end bracket 9 may be substituted for the side plate 15c.
  • stator core 3 including the stator winding 4 removed in the remodeling procedure 200 into the stator frame 2 of the new motor (see Fig. 17).
  • a plurality of discharge holes 19 are provided for discharging cooling air that does not contain the cooled dust. Further, the discharge hole 19 may be provided on a side surface of the end bracket 11.
  • FIG. 1 An open-type motor for driving a vehicle, that is, the motor shown in FIG. 1 is obtained.
  • 28 is the ground wire of the motor
  • 29 is the lead wire connected to the stator winding 4
  • 30 is the ground wire of the inverter
  • 31 is the lead wire 29, It is a support base for supporting the signal line of the speed detecting device 24 and the ground line 30 of the inverter.
  • Reference numeral 33 denotes a grease supply device for supplying grease of the bearing device 13
  • reference numerals 32 and 34 denote mounting portions for mounting the electric motor on the bogie.
  • One of the separated cooling winds contains dust, flows into the inner surface of the outer peripheral surface 9 a of the end bracket 9, and is driven by the rotational force of the pushing fan 15 to the inner surface of the outer peripheral surface 9 a of the end bracket 9. Flows in the circumferential direction, reaches the discharge hole 21 and is discharged outside the machine. At this time, the cooling air containing dust does not flow into the machine due to the dust separating member 9 d serving as a wall.
  • the other cooling air that has been separated does not contain dust, and is pushed toward the iron core via a gap between the inner diameter side of the dust separating member 9d and the outer diameter side of the fan main plate 15a.
  • the cooling air pushed in cools one end of the stator core 3 and the rotor core 5, and the gap between the stator core 3 and the rotor core 5 and the axial direction provided in the rotor core 5. It flows to the exhaust side while cooling the continuous ventilation duct 25.
  • the cooling air that has reached the exhaust side cools the other ends of the stator core 3 and the rotor core 5 and is discharged out of the machine through the exhaust holes 19.
  • the auxiliary fan 16 since the auxiliary fan 16 is rotating by the rotation of the rotating shaft 7, air flows in the space at the other end of the stator core 3 and the rotor core 5, and there is warm air there. Does not stay.
  • the stator frame 1 of the old motor is replaced with the stator frame 2, but the stator frame 1 can be used as it is. .
  • one of the exhaust holes 20 provided in the stator frame 1 is used as the exhaust hole 21, and the intake hole 17 is used as the exhaust hole 17. do it.
  • the end bracket 10 is removable, it may be replaced with the end bracket 11. Or you may use it as it is.
  • an air inlet is provided in the outer peripheral portion of the stator frame 2 on the exhaust hole 19 side, and a communication pipe for communicating the provided air inlet with the exhaust hole 21 is provided.
  • the cooling air containing dust to be discharged outside the machine is taken into the space on the exhaust port 21 side, and then discharged to the outside together with the dust-free cooling air that has cooled the inside of the machine through the exhaust hole 21. You can also.
  • the cooling air containing dust has a low cooling temperature, and thus has a high cooling effect. Therefore, by taking in the cooling air containing the low-temperature dust to the exhaust side, the cooling efficiency on the exhaust side can be increased. Since the cooling air containing dust has a smaller air volume than the cooling air containing no dust, the dust does not accumulate in the machine.
  • At least 3 Omra or more is provided between the inner diameter side of the fan vane 15 b of the pushing fan 15 and the air inlet 18 provided in the inner peripheral surface 9 b of the end bracket 9.
  • a space is formed.
  • the number of fan vanes 15b and the number of air inlets 18 are a combination of numbers that are not divisible from each other (have no common divisor other than 1). In this way, the position (phase) of the fan vanes 15b and the inlet holes 18 at 360 ° of the inner peripheral surface 9b of the end bracket 9 are all different, so that the fan vanes 15b It does not increase the noise generated in the space between the air inlets 18. In addition, since the noise generation frequency can be reduced, resonance in the space between the fan vane 15b and the air inlet 18 becomes difficult, and the noise level hardly increases. Therefore, noise generated in the space between the fan vane 15b and the air inlet 18 can be reduced.
  • the suction fan 14 of the old motor is replaced with the push-in fan 15, that is, replaced with the fan main plate 15 a provided with the fan vane 15 b on the side opposite to the iron core
  • the air inlet 18 is provided at the portion facing the inner diameter side of the push fan 15
  • the exhaust hole 21 is provided at the portion facing the outer diameter side of the push fan 15, and the air is exhausted at the portion facing the outer diameter side of the push fan 15. Since the dust separation member 9 d is provided on the part of the iron core side of the hole 21 and the exhaust hole 19 is provided in the space on the side opposite to the space on the side of the pushing fan 15 of the iron core, the filter has been modified.
  • the electric motor obtained by the modification of the present embodiment is provided with a cooling wind containing dust and a dust in a space surrounded by end bracket 9 including dust separating member 9 d and fan main plate 15 a of pushing fan 15. Since it can be separated from the cooling air that does not contain water, the mechanism for removing dust can be configured more easily than the conventional one, and the failure potential can be reduced. Therefore, reliability can be improved.
  • the electric motor obtained by the modification of the present embodiment has the air inlet 18 and the fan vane 15b arranged substantially on the same straight line, so that the cooling taken in through the air inlet 18 The ventilation loss of the wind can be reduced, and the required cooling air volume can be easily secured even if the pushing fan 15 has a small diameter. Therefore, low noise can be achieved.
  • the outer diameter of the electric motor obtained by the modification according to the present embodiment is the same as the outer dimension before the modification, the mounting dimensions of the bogie are the same as before the modification. It does not cause any trouble when it is mounted on a trolley.
  • parts that affect the electrical characteristics of the motor that is, the stator core, rotor core, stator winding, and rotor winding are reused before remodeling. Does not change.
  • the core fan 27 of the rotor core 5 is modified with the auxiliary fan 16
  • high-temperature cooling air is directly applied to the bearing cover 13 a of the bearing device 13. Without hitting, air flow occurs in the space between the iron core and the end bracket 11, and the heat of the high-temperature cooling air can be suppressed from being trapped in the space. Therefore, the temperature rise of the bearing device 13 can be suppressed.
  • the present invention can be applied to a modification of an open-type electric motor for driving a vehicle such as an electric locomotive without substantially changing the external dimensions and the like. It is possible to provide an open-type motor for driving a vehicle in which a conventional open-type motor for driving a vehicle with a dust filter is essentially used as a dust-removing filter and the maintenance and inspection period is extended. According to the present invention, both or either of the housing and the closing member of the existing open motor for driving a vehicle may be used, or both may be replaced with a new housing and a new closing member.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

L'invention concerne un procédé de modification du moteur d'entraînement d'un véhicule de type ouvert doté d'un logement (2) destiné à contenir un stator, un rotor présentant un ventilateur d'aspiration (14) ainsi qu'un arbre tournant (7), une paire de dispositifs de palier (12) et (13) destinés à porter pivotant l'arbre tournant (7), un élément de fermeture (8) installé sur un dispositif de palier (12), et un filtre (22) à poussières disposé dans un trou d'entrée (17) d'air d'admission formé par le ventilateur d'aspiration (14), comprenant les processus spécifiés ci-après: 1) retrait du filtre (22) à poussières et de l'élément de fermeture (8) du logement (2), 2) remplacement du ventilateur d'aspiration (14) par un ventilateur à aspiration forcée (15), 3) installation sur le dispositif de palier (12) d'un élément de fermeture (9) entourant le ventilateur d'aspiration forcée (15), présentant un trou (18) d'entrée d'air, et formant un trou (21) de décharge de poussière en coopération avec le logement (2), 4) formation d'un trou (19) de décharge d'air au niveau d'une position correspondant au trou (17) d'entrée d'air se trouvant dans le logement (2).
PCT/JP1999/000928 1999-02-26 1999-02-26 Procede de modification du moteur d'entrainement d'un vehicule de type ouvert WO2000052808A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2000603136A JP3855660B2 (ja) 1999-02-26 1999-02-26 車両駆動用開放型電動機の改造方法
PCT/JP1999/000928 WO2000052808A1 (fr) 1999-02-26 1999-02-26 Procede de modification du moteur d'entrainement d'un vehicule de type ouvert

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1999/000928 WO2000052808A1 (fr) 1999-02-26 1999-02-26 Procede de modification du moteur d'entrainement d'un vehicule de type ouvert

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103959613A (zh) * 2011-12-05 2014-07-30 东洋电机制造株式会社 车辆用电动机
CN109120102A (zh) * 2018-10-09 2019-01-01 淮南师范学院 矢量控制异步电机

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JPS535706U (fr) * 1976-07-01 1978-01-19
JPS55162367U (fr) * 1979-05-10 1980-11-21
JPS60162960U (ja) * 1984-04-04 1985-10-29 三菱電機株式会社 開放防滴形回転電機
JPH04304143A (ja) * 1991-03-29 1992-10-27 Hitachi Ltd 車両用主電動機

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JPS535706U (fr) * 1976-07-01 1978-01-19
JPS55162367U (fr) * 1979-05-10 1980-11-21
JPS60162960U (ja) * 1984-04-04 1985-10-29 三菱電機株式会社 開放防滴形回転電機
JPH04304143A (ja) * 1991-03-29 1992-10-27 Hitachi Ltd 車両用主電動機

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103959613A (zh) * 2011-12-05 2014-07-30 东洋电机制造株式会社 车辆用电动机
US10298094B2 (en) 2011-12-05 2019-05-21 Toyo Electric Mfg. Co., Ltd. Fan cooled motor with dust cleaning vent
CN109120102A (zh) * 2018-10-09 2019-01-01 淮南师范学院 矢量控制异步电机
CN109120102B (zh) * 2018-10-09 2019-08-20 淮南师范学院 矢量控制异步电机

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