JP2007074856A - Rotating electric machine for vehicle - Google Patents

Rotating electric machine for vehicle Download PDF

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Publication number
JP2007074856A
JP2007074856A JP2005260796A JP2005260796A JP2007074856A JP 2007074856 A JP2007074856 A JP 2007074856A JP 2005260796 A JP2005260796 A JP 2005260796A JP 2005260796 A JP2005260796 A JP 2005260796A JP 2007074856 A JP2007074856 A JP 2007074856A
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Prior art keywords
point contact
ball bearing
rotating electrical
electrical machine
contact ball
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Japanese (ja)
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Tsutomu Kinoshita
力 木下
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Toshiba Corp
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Toshiba Corp
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Priority to JP2005260796A priority Critical patent/JP2007074856A/en
Priority to KR1020060017582A priority patent/KR100765400B1/en
Priority to CN2006100514354A priority patent/CN1929257B/en
Publication of JP2007074856A publication Critical patent/JP2007074856A/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
    • A01C23/02—Special arrangements for delivering the liquid directly into the soil
    • A01C23/023—Special arrangements for delivering the liquid directly into the soil for liquid or gas fertilisers
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
    • A01C23/04—Distributing under pressure; Distributing mud; Adaptation of watering systems for fertilising-liquids
    • A01C23/042—Adding fertiliser to watering systems
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G29/00—Root feeders; Injecting fertilisers into the roots
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/02—Agriculture; Fishing; Mining
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotating electric machine for a vehicle enabling a large output even if using a worm gear as a drive gear mounted to a drive unit of the vehicle. <P>SOLUTION: The rotating electric machine for the vehicle comprises: a stator; a rotor; a drive shaft connected to the stator; a cylindrical roller bearing arranged at the drive side of the drive shaft; a cylindrical roller bearing arranged at the non-drive side of the drive shaft; and a four-point contact type ball bearing arranged at the non-drive side of the drive shaft. The rotating electric machine is also characterized in that: a gap larger than a radial gap of the cylindrical roller bearing arranged at the non-drive side is formed at a fitting face between an outer ring of the four-point contact ball bearing and the shaft box inside-diameter face of the rotating electric machine to which the outer ring of the four-point contact type ball bearing is fit; a rectangular key groove is formed on the circumference of the outer ring of the four-point contact type ball bearing; a similar rectangular key groove is similarly formed at a position to which the rectangular key groove on the shaft box internal peripheral surface that is fit with the four-point contact type ball bearing corresponds; and rectangular keys are inserted into the mutual rectangular grooves. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、車両用回転電機に関する。 The present invention relates to a rotating electrical machine for a vehicle.

電気機関車に搭載される車両用回転電機(モータ)は車両の台車内で一対の車輪に挟まれ配置されている。車両用回転電機の駆動力の伝達するため、駆動軸の車両用回転電機枠から突出した軸端にピニオンが具備され、車軸にギヤが嵌合されている。この車両用回転電機は前記車軸に対して互いの軸が並行、且つ車両用回転電機のピニオンと車軸のギヤが噛合うように車両用回転電機が配置され台車に装着されている。機関車は、大量の貨物を牽引するために大トルクが必要となることから、電車の駆動装置とは異なり、車両用回転電機と駆動装置の間にカップリングを介さないで前述のように、車両用回転電機が車軸と並行にギ装され直接にギヤとピニオンで動力を伝達する構造となる。そのため、カップリングスペースを車両用回転電機で使用することが可能となるので、車両用回転電機の大型化が可能となり、大出力車両用回転電機が構成できる。   A vehicular rotating electrical machine (motor) mounted on an electric locomotive is disposed between a pair of wheels in a bogie of the vehicle. In order to transmit the driving force of the rotating electrical machine for the vehicle, a pinion is provided at a shaft end of the driving shaft protruding from the rotating electrical machine frame for the vehicle, and a gear is fitted to the axle. In this rotating electrical machine for vehicles, the rotating electrical machine for vehicles is arranged and attached to the carriage so that the shafts thereof are parallel to the axle and the pinion of the rotating electrical machine for vehicles and the gear of the axle are engaged. Since the locomotive requires a large torque to tow a large amount of cargo, unlike a train drive device, as described above, without a coupling between the rotating electrical machine for the vehicle and the drive device, A vehicular rotating electrical machine is mounted in parallel with the axle so that power is directly transmitted by a gear and a pinion. Therefore, since the coupling space can be used by the vehicular rotating electric machine, the vehicular rotating electric machine can be increased in size, and a high-output vehicular rotating electric machine can be configured.

従来の車両用回転電機について図を参照し詳細に説明する。図１９は、従来の車両用回転電機と駆動装置の縦断面図である。図２０は、従来の車両用回転電機の断面図である。図２１は、ハス歯車の斜視図である。図２２は、法線方向荷重Ｔとスラスト方向荷重Ｆの関係図である。 A conventional rotating electrical machine for a vehicle will be described in detail with reference to the drawings. FIG. 19 is a longitudinal sectional view of a conventional rotating electrical machine for a vehicle and a driving device. FIG. 20 is a cross-sectional view of a conventional vehicular rotating electrical machine. FIG. 21 is a perspective view of a helical gear. FIG. 22 is a relationship diagram between the normal direction load T and the thrust direction load F.

従来の車両用回転電機において、ピニオン１が装着される駆動軸２には、ピニオンの伝達力のトルク反力を受けて、駆動軸２は大きな曲げモーメントを受ける。駆動軸２の曲げモーメントにより駆動側の軸受３には大きなラジアル荷重が負荷される。軸受３は高負荷が許容できる円筒コロ軸受３を使用している。反駆動側の軸受４についても、高出力で車両用回転電機質量が大きいことなどから、玉軸受などではラジアル荷重が許容できないため、負荷容量が大きいコロ軸受を使用している。ただし両側軸受をコロ軸受で構成すると、スラスト方向に回転子が自由に移動して、固定子５と回転子６が接触するため、反駆動側の軸受４はツバ付き円筒コロ軸受４を使用している。反駆動側のツバ付き円筒コロ軸受４は大きなスラスト荷重を受けられないが、通常は車両用回転電機のスラスト荷重は、機関車走行による横方向の振動荷重が支配的で、軸受寿命計算では５Ｇ程度となっている。車両用回転電機の回転子質量が５００ｋｇであればスラスト方向の荷重は２５００ｋｇとなり、反駆動側のツバ付き円筒コロ軸受４は充分に荷重が許容可能となっている。
特開平０６−６９５８号公報 In a conventional vehicular rotating electrical machine, the drive shaft 2 on which the pinion 1 is mounted receives a torque reaction force of the transmission force of the pinion, and the drive shaft 2 receives a large bending moment. A large radial load is applied to the drive-side bearing 3 by the bending moment of the drive shaft 2. As the bearing 3, a cylindrical roller bearing 3 that can tolerate a high load is used. As for the bearing 4 on the counter driving side, a roller bearing having a large load capacity is used because a radial load cannot be allowed with a ball bearing or the like because of a high output and a large rotating electrical machine mass for the vehicle. However, if both side bearings are composed of roller bearings, the rotor moves freely in the thrust direction and the stator 5 and the rotor 6 come into contact with each other. ing. The counter-driven side flanged cylindrical roller bearing 4 cannot receive a large thrust load. Normally, the thrust load of a rotating electrical machine for a vehicle is dominated by a lateral vibration load caused by locomotive travel. It is about. If the rotor mass of the vehicular rotating electrical machine is 500 kg, the load in the thrust direction is 2500 kg, and the cylindrical roller bearing 4 with the flange on the non-driving side can sufficiently allow the load.
Japanese Patent Laid-Open No. 06-6958

しかしながら、従来の機関車に対しては、低騒音化の要望が強い。そのため、従来の機関車のピニオン１とギヤ７では平歯車となっているものを、歯車の騒音低下や歯車強度の面から第２１図に示すようにハス歯歯車で構成する方法が考えられる。しかしながら、この場合車両用回転電機の駆動軸２に負荷される荷重は図２２に示すように、ピニオン１ａのトルク反力による法線方向荷重”Ｔ”に対してハス歯角αがｔａｎ”α”としてスラスト方向に”Ｆ”が負荷される。機関車の歯車でハス歯歯車を使用する場合はハス歯角度が５度から１５度の範囲が一般的となっている。このハス歯角度によるスラスト荷重はピニオン７ａの法泉方向荷重となる伝達トルクの約２７％から９％の範囲でとも大きな荷重となる。前述のように大きなスラスト荷重が負荷される場合は、反駆動側の軸受４は、ツバ付き円筒コロ軸受ではスラスト方向の負荷容量が不足するため深溝玉軸受を使用する。深溝玉軸受はスラスト荷重が許容可能となる一方でラジアル荷重の負荷容量がツバ付き円筒コロ軸受に対して約１／３と極端に低くなり、必然的に車両用回転電機のトルクは軸受の負荷容量から、出力を制限される設計となっており、つまりはハス歯歯車を使用する車両用回転電機では大出力化が困難であった。 However, there is a strong demand for noise reduction for conventional locomotives. For this reason, it is conceivable to use a helical gear as shown in FIG. 21 for the conventional pinion 1 and gear 7 of the locomotive, which is a spur gear, from the viewpoint of reduction in gear noise and gear strength. However, in this case, as shown in FIG. 22, the load applied to the drive shaft 2 of the vehicular rotating electrical machine has a lotus tooth angle α of tan “α” with respect to the normal direction load “T” due to the torque reaction force of the pinion 1a. "F" is loaded in the thrust direction. When a helical gear is used as a locomotive gear, a helical tooth angle is generally in the range of 5 to 15 degrees. The thrust load due to the helical tooth angle becomes a large load in the range of about 27% to 9% of the transmission torque that becomes the normal spring direction load of the pinion 7a. As described above, when a large thrust load is applied, the bearing 4 on the non-driving side uses a deep groove ball bearing because a cylindrical roller bearing with a flange lacks the load capacity in the thrust direction. Deep groove ball bearings can tolerate thrust loads, while the radial load capacity is extremely low, about 1/3 of flanged cylindrical roller bearings. The design is such that the output is limited due to the capacity, that is, it has been difficult to increase the output with a vehicular rotating electrical machine that uses a helical gear.

そこで、本発明は、車両の駆動装置に搭載された駆動歯車としてハス歯歯車を使用しても、大出力化が可能な車両用回転電機を提供することを目的とする。 Accordingly, an object of the present invention is to provide a vehicular rotating electrical machine capable of increasing output even when a helical gear is used as a drive gear mounted on a vehicle drive device.

上記課題は、固定子と、回転子と、固定子と接続された駆動軸と、前記駆動軸の駆動側に設けられ、前記駆動軸を回転自在に支持する円筒ゴロ軸受と、前記駆動軸の反駆動側に設けられ前記駆動軸を回転自在に支持する円筒コロ軸受と、前記駆動軸の反駆動側で、前記反駆動側の前記駆動軸に設けられた前記円筒コロ軸受よりも外側に設けられた４点接触形玉軸受とを有し、前記４点接触玉軸受の外輪と当該４点接触玉軸受の外輪が嵌合する当該回転電機の軸箱内径面との嵌合面に、前記反駆動側に配置した前記円筒コロ軸受のラジアル隙間以上の隙間を設け、前記４点接触玉軸受の外輪の円周上に矩形のキー溝を設け、同様に前記４点接触玉軸受が嵌合される軸箱内周面の前記矩形キー溝が対応する位置に同様の矩形のキー溝を設け、互いの矩形のキー溝に矩形のキーが挿入されることにより達成することが出来る。 The above-described problems include a stator, a rotor, a drive shaft connected to the stator, a cylindrical goro bearing provided on the drive side of the drive shaft and rotatably supporting the drive shaft, and the drive shaft. A cylindrical roller bearing provided on the non-driving side and rotatably supporting the driving shaft; and provided on the non-driving side of the driving shaft and outside the cylindrical roller bearing provided on the driving shaft on the counter driving side. A fitting surface between the outer ring of the four-point contact ball bearing and the inner surface of the shaft box of the rotating electrical machine into which the outer ring of the four-point contact ball bearing is fitted. A clearance larger than the radial clearance of the cylindrical roller bearing disposed on the non-driving side is provided, a rectangular key groove is provided on the circumference of the outer ring of the four-point contact ball bearing, and the four-point contact ball bearing is similarly fitted. A similar rectangular key groove is provided at a position corresponding to the rectangular key groove on the inner peripheral surface of the shaft box, Can be achieved by rectangular key is inserted in a rectangular keyway.

上記課題は、固定子と、回転子と、固定子と接続された駆動軸と、前記駆動軸の駆動側に設けられ、前記駆動軸を回転自在に支持する円筒ゴロ軸受と、前記駆動軸の反駆動側に設けられ前記駆動軸を回転自在に支持する円筒コロ軸受と、前記駆動軸の反駆動側で、前記反駆動側の前記駆動軸に設けられた前記円筒コロ軸受よりも内側に設けられた４点接触形玉軸受とを有し、前記４点接触玉軸受の外輪と当該４点接触玉軸受の外輪が嵌合する当該回転電機の軸箱内径面との嵌合面に、前記反駆動側に配置した前記円筒コロ軸受のラジアル隙間以上の隙間を設け、前記４点接触玉軸受の外輪の円周上に矩形のキー溝を設け、同様に前記４点接触玉軸受が嵌合される軸箱内周面の前記矩形キー溝が対応する位置に同様の矩形のキー溝を設け、互いの矩形のキー溝に矩形のキーが挿入されることにより達成することが出来る。 The above-described problems include a stator, a rotor, a drive shaft connected to the stator, a cylindrical goro bearing provided on the drive side of the drive shaft and rotatably supporting the drive shaft, and the drive shaft. A cylindrical roller bearing provided on the non-driving side and rotatably supporting the driving shaft; and provided on the non-driving side of the driving shaft and inside the cylindrical roller bearing provided on the driving shaft on the counter driving side A fitting surface between the outer ring of the four-point contact ball bearing and the inner surface of the shaft box of the rotating electrical machine into which the outer ring of the four-point contact ball bearing is fitted. A clearance larger than the radial clearance of the cylindrical roller bearing disposed on the non-driving side is provided, a rectangular key groove is provided on the circumference of the outer ring of the four-point contact ball bearing, and the four-point contact ball bearing is similarly fitted. A similar rectangular key groove is provided at a position corresponding to the rectangular key groove on the inner peripheral surface of the shaft box, Can be achieved by rectangular key is inserted in a rectangular keyway.

上記課題は、固定子と、回転子と、固定子と接続された駆動軸と、前記駆動軸の駆動側に設けられ、前記駆動軸を回転自在に支持する円筒ゴロ軸受と、前記駆動軸の反駆動側に設けられ前記駆動軸を回転自在に支持する円筒コロ軸受と、前記駆動軸の反駆動側に設けられた４点接触形玉軸受とを備えたことにより達成することができる。 The above-described problems include a stator, a rotor, a drive shaft connected to the stator, a cylindrical goro bearing provided on the drive side of the drive shaft and rotatably supporting the drive shaft, and the drive shaft. This can be achieved by providing a cylindrical roller bearing provided on the non-drive side and rotatably supporting the drive shaft, and a four-point contact ball bearing provided on the non-drive side of the drive shaft.

上記課題は、固定子と、回転子と、固定子と接続された駆動軸と、前記駆動軸の駆動側に設けられ、大きなラジアル荷重を許容可能な軸受と、前記駆動軸の反駆動側に設けられ、大きなラジアル荷重を許容可能な軸受と、前記駆動軸の反駆動側に設けられ、大きなスラスト荷重を許容できる軸受とを備えたことにより達成することが出来る。 The above-described problems are a stator, a rotor, a drive shaft connected to the stator, a bearing provided on the drive side of the drive shaft, and capable of accepting a large radial load, and a non-drive side of the drive shaft. This can be achieved by providing a bearing that is capable of allowing a large radial load and a bearing that is provided on the non-driving side of the drive shaft and that can allow a large thrust load.

本発明により、車両の駆動装置に搭載された駆動歯車としてハス歯歯車を使用しても、大出力化が可能な車両用回転電機を提供することができる。 According to the present invention, it is possible to provide a vehicular rotating electrical machine capable of increasing output even when a helical gear is used as a drive gear mounted on a vehicle drive device.

（第１の実施の形態）
本発明に基づく第１の実施の形態の車両用回転電機について図を参照し詳細に説明する。図１は、本発明に基づく第１の実施の形態の車両用回転電機と駆動装置の縦断面図である。図２は、本発明に基づく第１の実施の形態の回転電機の断面図である。図３は、本発明に基づく第３の実施の形態の回転電機の反駆動側軸受部の縦断面図である。図４は、図３のＡ−Ａ断面図である。尚、図１９乃至図２１に記載したものと同一の構造のものには、同符号を付して説明を省略する。 (First embodiment)
A vehicular rotating electrical machine according to a first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal sectional view of a rotating electrical machine for a vehicle and a drive device according to a first embodiment of the present invention. FIG. 2 is a sectional view of the rotating electrical machine according to the first embodiment of the present invention. FIG. 3 is a longitudinal sectional view of the non-driving side bearing portion of the rotating electrical machine according to the third embodiment of the present invention. 4 is a cross-sectional view taken along line AA in FIG. In addition, the same structure as what was described in FIG. 19 thru | or FIG. 21 is attached | subjected, and description is abbreviate | omitted.

本発明に基づく第１の実施の形態の車両用回転電機において、車両用回転電機枠から突出した駆動軸２の軸端にハス歯歯車であるピニオン１ａが具備されている。車軸８には、ハス歯は車であるギヤ７ａが嵌合されている。車両用回転電機は、駆動軸２と車軸８が並行となるように配置される。さらにピニオン１ａと車軸８のギヤ７ａが噛合うように車両用回転電機が配置され、前記ピニオン１ａとギヤ７ａはギヤケース９で覆われ、台車に装着されている。ピニオン１が装着される駆動軸２にはピニオンの伝達力のトルク反力を受けて、駆動軸２には大きな曲げモーメントを受ける。前記駆動軸２の曲げモーメントにより駆動側の軸受３には大きなラジアル荷重が負荷される。前記軸受３は高負荷が許容できる円筒コロ軸受３を使用している。 In the vehicular rotating electrical machine according to the first embodiment of the present invention, a pinion 1a, which is a helical gear, is provided at the shaft end of the drive shaft 2 protruding from the vehicular rotating electrical machine frame. The axle 8 is fitted with a gear 7a, which is a car with lotus teeth. The vehicular rotating electrical machine is arranged so that the drive shaft 2 and the axle 8 are in parallel. Further, a rotating electrical machine for a vehicle is arranged so that the pinion 1a and the gear 7a of the axle 8 are engaged with each other, and the pinion 1a and the gear 7a are covered with a gear case 9 and attached to the carriage. The drive shaft 2 on which the pinion 1 is mounted receives a torque reaction force of the transmission force of the pinion, and the drive shaft 2 receives a large bending moment. A large radial load is applied to the drive-side bearing 3 by the bending moment of the drive shaft 2. The bearing 3 is a cylindrical roller bearing 3 that can tolerate a high load.

ここで、ピニオン１とギヤ７はハス歯歯車を使用し、運転中の歯車噛合い騒音の低減や、大荷重でも充分に歯車強度が確保できる構造としている。ハス歯歯車の使用により図２１及び図２２で説明の通り、車両用回転電機の駆動軸２に負荷される荷重はピニオン１ａのトルク反力による法線方向荷重”Ｔ”に対してハス歯角αがｔａｎ”α”としてスラスト方向の荷重として”Ｆ”が負荷されることになる。回転子は前記スラスト荷重を受けて、駆動軸方向に荷重”Ｆ”が作用するため、反駆動側の軸受には大きなスラスト荷重”Ｆ”が許容可能な４点接触玉軸受１０を構成する。この４点接触玉軸受１０はスラスト荷重は許容可能であるが、大きなラジアル加重が許容できないデメリットがある。 Here, the pinion 1 and the gear 7 use helical gears to reduce the gear meshing noise during operation and to ensure sufficient gear strength even under heavy loads. As described with reference to FIGS. 21 and 22 by using the helical gear, the load applied to the drive shaft 2 of the rotating electrical machine for the vehicle is the helical tooth angle with respect to the normal load “T” due to the torque reaction force of the pinion 1a. α is tan “α”, and “F” is applied as a load in the thrust direction. Since the rotor receives the thrust load and a load “F” acts in the direction of the drive shaft, the bearing on the counter drive side constitutes a four-point contact ball bearing 10 that can accept a large thrust load “F”. The four-point contact ball bearing 10 has a demerit that a thrust load can be allowed but a large radial load cannot be allowed.

大容量車両用回転電機の反駆動側に負荷されるラジアル荷重は前記４点接触玉軸受では許容することが不可能であり、反駆動側のラジアル荷重は、円筒コロ軸受１１を具備し荷重を負担する構成としている。反駆動側軸受の円筒コロ軸受１１の外輪とハウジング１２の内径との嵌合は締まり嵌めとしているが、４点接触玉軸受１０の外輪とハウジング１２との嵌合はすきま嵌めとしており、この隙間寸法”δ”は前記円筒コロ軸受１１のラジアル隙間以上の隙間寸法となるよう構成し、４点接触玉軸受にラジアル荷重が負荷されないように、ラジアル荷重が負荷された時にスライド可能な構成としている。 The radial load applied to the non-drive side of the rotary electric machine for large-capacity vehicles cannot be permitted by the four-point contact ball bearing, and the radial load on the non-drive side is provided with the cylindrical roller bearing 11 and has a load. It is configured to bear. The outer ring of the cylindrical roller bearing 11 of the non-drive side bearing and the inner diameter of the housing 12 are fitted together, but the fitting of the outer ring of the four-point contact ball bearing 10 and the housing 12 is a loose fit. The dimension “δ” is configured to be a clearance dimension larger than the radial clearance of the cylindrical roller bearing 11, and is configured to be slidable when a radial load is applied so that the radial load is not applied to the four-point contact ball bearing. .

つまり、車両用回転電機の駆動側軸受には、大きなラジアル荷重を許容可能な円筒コロ軸受を使用し、反駆動側にも大きなラジアル荷重を受けることが可能な円筒コロ軸受を使用し、さらに反駆動側に大きなスラスト荷重を許容できる４点接触玉軸受を構成する。駆動軸が車両用回転電機枠に対して３個の軸受で支持されるため、ラジアル荷重は駆動側と反駆動側に構成する円筒コロ軸受２個で受ける構成とするため、４点接触の外輪とハウジング内径面との嵌合はラジアル隙間寸法以上の隙間となるよすきま嵌めで構成する。 In other words, a cylindrical roller bearing that can accept a large radial load is used as the drive-side bearing of the rotating electrical machine for the vehicle, and a cylindrical roller bearing that can receive a large radial load is also used on the non-drive side. A four-point contact ball bearing that can tolerate a large thrust load on the drive side is configured. Since the drive shaft is supported by three bearings with respect to the rotating electrical machine frame for the vehicle, the radial load is received by two cylindrical roller bearings configured on the drive side and the non-drive side. The inner diameter surface of the housing is fitted with a close fit with a clearance larger than the radial clearance dimension.

図３に本発明による反駆動側軸受の詳細図を示し、図４に図３のＡ―Ａ断面図を示す。４点接触玉軸受１０の外輪とハウジング１２の内径との隙間δは、前記４点接触玉軸受にラジアル荷重が作用することを防止するために、軸受がスライド可能な隙間としているが、この隙間により、前記軸受外輪が前記ハウジング１２に対して回転方向に移動することを防止するために、ハウジング１２内径面に全周１箇所のキー溝を設け、これに対抗する位置の４点接触玉軸受１０の外輪にもキー溝を設け、前記互いのキー溝に矩形のキー１３を具備して、軸受外輪の移動防止を図れる構造としている。 FIG. 3 is a detailed view of the non-driving side bearing according to the present invention, and FIG. 4 is a cross-sectional view taken along line AA of FIG. The gap δ between the outer ring of the four-point contact ball bearing 10 and the inner diameter of the housing 12 is a gap that allows the bearing to slide in order to prevent a radial load from acting on the four-point contact ball bearing. Thus, in order to prevent the outer ring of the bearing from moving in the rotational direction with respect to the housing 12, a four-point contact ball bearing is provided at one position on the inner diameter surface of the housing 12 and opposed to the key groove. A key groove is also provided in each of the 10 outer rings, and a rectangular key 13 is provided in each of the key grooves so that movement of the bearing outer ring can be prevented.

このように構成された車両用回転電機は、反駆動側の軸受けにラジアル荷重の許容値は低いがスラスト荷重の許容値が高い軸受（４点接触玉軸受）とスラスト荷重の許容値は低いがラジアル荷重の許容値が高い軸受（円筒コロ軸受）を組合せているので、ハス歯歯車を使用しスラスト荷重が高い場合でも、車両用回転電機の大容量化をすることが出来る。 The vehicular rotating electrical machine configured as described above has a low allowable radial load but a high allowable thrust load (four-point contact ball bearing) and a low allowable thrust load on the non-drive side bearing. Since a bearing (cylindrical roller bearing) having a high radial load tolerance is combined, even when a helical gear is used and the thrust load is high, the capacity of the rotating electrical machine for the vehicle can be increased.

また、４点接触玉軸受は、すきま嵌めとし、ハウジングと４点接触玉軸受をキー構造によりしているので、４点接触玉軸受けにラジアル荷重がかかりづらくなり、更に軸受外輪が回転することも防止することが出来る。 The 4-point contact ball bearing has a clearance fit, and the housing and 4-point contact ball bearing have a key structure. Therefore, it is difficult to apply a radial load to the 4-point contact ball bearing, and the bearing outer ring can rotate. Can be prevented.

このように構成された車両用回転電機は、低騒音化と大容量化を実現することが出来る。 The vehicular rotating electrical machine configured in this way can achieve low noise and large capacity.

（第２の実施の形態）
本発明に基づく第２の実施の形態の車両用回転電機について図を参照し詳細に説明する。図５は、本発明に基づく第２の実施の形態の車両用回転電機の反駆動側軸受の縦断面図である。図６は、図５のＢ−Ｂ断面図である。尚、図１乃至図４に記載したものと同一の構造のものには、同符号を付して説明を省略する。 (Second Embodiment)
A vehicular rotating electrical machine according to a second embodiment of the present invention will be described in detail with reference to the drawings. FIG. 5 is a longitudinal cross-sectional view of the counter-drive side bearing of the rotating electrical machine for a vehicle according to the second embodiment of the present invention. 6 is a cross-sectional view taken along line BB in FIG. The same structure as that shown in FIGS. 1 to 4 is denoted by the same reference numeral, and description thereof is omitted.

本発明に基づく第２の実施の形態の車両用回転電機において、反駆動側の４点接触玉軸受１０及び円筒コロ軸受１１及びハウジング１２の構成は、第１の実施の形態と同じ構造であるため省略する。 In the vehicular rotating electrical machine according to the second embodiment of the present invention, the configurations of the four-point contact ball bearing 10, the cylindrical roller bearing 11, and the housing 12 on the non-driving side are the same as those in the first embodiment. Therefore, it is omitted.

本発明に基づく第２の実施の形態の車両用回転電機は、ハウジング１２内径面に全周１箇所のキー溝を設け、これに対抗する位置の４点接触玉軸受１０の外輪にもキー溝を設け、前記互いのキー溝に球状のキー１４を具備していることを特徴のひとつとしている。 The rotating electrical machine for a vehicle according to the second embodiment of the present invention is provided with a key groove at one place on the inner peripheral surface of the housing 12 and also on the outer ring of the four-point contact ball bearing 10 at a position opposed thereto. And a spherical key 14 is provided in each of the key grooves.

このように構成された車両用回転電機は、ハウジング１２と４点接触玉軸受１０にキー構造を採用しているので、軸受外輪の移動防止を図れる。 Since the vehicular rotating electrical machine thus configured employs a key structure for the housing 12 and the four-point contact ball bearing 10, it is possible to prevent movement of the bearing outer ring.

また、本実施の形態の車両用回転電機も、反駆動側の軸受けにラジアル荷重の許容値は低いがスラスト荷重の許容値が高い軸受（４点接触玉軸受１０）とスラスト荷重の許容値は低いがラジアル荷重の許容値が高い軸受（円筒コロ軸受１１）を組合せているので、ハス歯歯車を使用しスラスト荷重が高い場合でも、車両用回転電機の大容量化をすることが出来る。更に、４点接触玉軸受は、すきま嵌めとしているので、４点接触玉軸受けにラジアル荷重が、４点接触玉軸受１０にかかるのを防止することが出来る。 In addition, the rotating electrical machine for a vehicle according to the present embodiment also has a bearing with a low allowable radial load but a high allowable thrust load (4-point contact ball bearing 10) and an allowable thrust load on the non-drive side bearing. Since the bearing (cylindrical roller bearing 11) having a low radial load tolerance is combined, the capacity of the vehicular rotating electrical machine can be increased even when a helical gear is used and the thrust load is high. Further, since the four-point contact ball bearing has a clearance fit, it is possible to prevent a radial load from being applied to the four-point contact ball bearing 10 on the four-point contact ball bearing.

このように構成された車両用回転電機は、低騒音化と大容量化を実現することが出来る。 The vehicular rotating electrical machine configured in this way can achieve low noise and large capacity.

（第３の実施の形態）
本発明に基づく第３の実施の形態の車両用回転電機について図を参照し詳細に説明する。図７は、本発明に基づく第３の実施の形態の車両用回転電機の反駆動側軸受の縦断面図である。図８は、図７のＣ−Ｃ断面図である。尚、図１乃至図６に記載したものと同一の構造のものには、同符号を付して説明を省略する。 (Third embodiment)
A vehicular rotating electrical machine according to a third embodiment of the present invention will be described in detail with reference to the drawings. FIG. 7 is a longitudinal sectional view of a non-driving side bearing of a rotating electrical machine for a vehicle according to a third embodiment of the present invention. 8 is a cross-sectional view taken along the line CC of FIG. The same structure as that shown in FIG. 1 to FIG.

本発明に基づく第３の実施の形態の車両用回転電機において、反駆動側の４点接触玉軸受１０及び円筒コロ軸受１１及びハウジング１２の構成は、本発明で説明した形態と同じであるため省略する。 In the vehicular rotating electrical machine according to the third embodiment of the present invention, the configurations of the four-point contact ball bearing 10, the cylindrical roller bearing 11, and the housing 12 on the counter-drive side are the same as those described in the present invention. Omitted.

本発明に基づく第３の実施の形態の車両用回転電機は、ハウジング１２の側面に１箇所のキー溝を設け、これに対抗する位置の４点接触玉軸受１０の外輪角に傾斜した平面を設け、前記ハウジングのキー溝と４点接触玉軸受の傾斜した平面にキー１５が、対向し嵌り合う矩形で一辺が傾斜平面を有するキー１５を具備して、軸受外輪の移動防止を図れる構造とすることを特徴のひとつとしている。 The vehicular rotating electrical machine according to the third embodiment of the present invention is provided with a single key groove on the side surface of the housing 12 and a plane inclined to the outer ring angle of the four-point contact ball bearing 10 at a position opposed to the key groove. And a key 15 on the inclined plane of the key groove of the housing and the four-point contact ball bearing. The key 15 includes a key 15 having a rectangular shape that faces each other and has an inclined plane, and can prevent movement of the bearing outer ring. One of the features is to do.

また、本実施の形態の車両用回転電機も、反駆動側の軸受けにラジアル荷重の許容値は低いがスラスト荷重の許容値が高い軸受（４点接触玉軸受１０）とスラスト荷重の許容値は低いがラジアル荷重の許容値が高い軸受（円筒コロ軸受１１）を組合せているので、ハス歯歯車を使用しスラスト荷重が高い場合でも、車両用回転電機の大容量化をすることが出来る。更に、４点接触玉軸受は、すきま嵌めとしているので、４点接触玉軸受けにラジアル荷重が、４点接触玉軸受１０にかかるのを防止することが出来る。 In addition, the rotating electrical machine for a vehicle according to the present embodiment also has a bearing with a low allowable radial load but a high allowable thrust load (4-point contact ball bearing 10) and an allowable thrust load on the non-drive side bearing. Since the bearing (cylindrical roller bearing 11) having a low radial load tolerance is combined, the capacity of the vehicular rotating electrical machine can be increased even when a helical gear is used and the thrust load is high. Further, since the four-point contact ball bearing has a clearance fit, it is possible to prevent a radial load from being applied to the four-point contact ball bearing 10 on the four-point contact ball bearing.

このように構成された車両用回転電機は、低騒音化と大容量化を実現することが出来る。 The vehicular rotating electrical machine configured in this way can achieve low noise and large capacity.

（第４の実施の形態）
本発明に基づく第４の実施の形態の車両用回転電機について図を参照し詳細に説明する。図９は、本発明に基づく第４の実施の形態の車両用回転電機の反駆動側軸受の縦断面図である。図１０は、図９のＤ−Ｄ断面図である。尚、図１乃至図８に記載したものと同一の構造のものには、同符号を付して説明を省略する。 (Fourth embodiment)
A vehicular rotating electrical machine according to a fourth embodiment of the present invention will be described in detail with reference to the drawings. FIG. 9 is a longitudinal sectional view of a non-driving side bearing of a vehicular rotating electrical machine according to a fourth embodiment of the present invention. 10 is a cross-sectional view taken along the line DD of FIG. The same structure as that shown in FIG. 1 to FIG.

本発明に基づく第４の実施の形態の車両用回転電機において、反駆動側の４点接触玉軸受１０及び円筒コロ軸受１１及びハウジング１２の構成は、本発明で説明した形態と同じであるため省略する。 In the vehicular rotating electrical machine according to the fourth embodiment of the present invention, the configurations of the four-point contact ball bearing 10, the cylindrical roller bearing 11, and the housing 12 on the counter-drive side are the same as those described in the present invention. Omitted.

本実施の形態の車両用回転電機は、ハウジング１２内径面に全周１箇所のキー溝を設け、これに対抗する位置の４点接触玉軸受１０の外輪にもキー溝を設け、前記互いのキー溝に円筒状のキー１６を具備して、軸受外輪の移動防止を図れる構造とすることを特徴のひとつとしている。 The vehicular rotating electrical machine of the present embodiment is provided with one key groove on the inner diameter surface of the housing 12 and a key groove on the outer ring of the four-point contact ball bearing 10 at a position opposed to the key groove. One of the features is that a cylindrical key 16 is provided in the key groove to prevent movement of the bearing outer ring.

また、本実施の形態の車両用回転電機も、反駆動側の軸受けにラジアル荷重の許容値は低いがスラスト荷重の許容値が高い軸受（４点接触玉軸受１０）とスラスト荷重の許容値は低いがラジアル荷重の許容値が高い軸受（円筒コロ軸受１１）を組合せているので、ハス歯歯車を使用しスラスト荷重が高い場合でも、車両用回転電機の大容量化をすることが出来る。更に、４点接触玉軸受は、すきま嵌めとしているので、４点接触玉軸受けにラジアル荷重が、４点接触玉軸受１０にかかるのを防止することが出来る。 In addition, the rotating electrical machine for a vehicle according to the present embodiment also has a bearing with a low allowable radial load but a high allowable thrust load (4-point contact ball bearing 10) and an allowable thrust load on the non-drive side bearing. Since the bearing (cylindrical roller bearing 11) having a low radial load tolerance is combined, the capacity of the vehicular rotating electrical machine can be increased even when a helical gear is used and the thrust load is high. Further, since the four-point contact ball bearing has a clearance fit, it is possible to prevent a radial load from being applied to the four-point contact ball bearing 10 on the four-point contact ball bearing.

このように構成された車両用回転電機は、低騒音化と大容量化を実現することが出来る。 The vehicular rotating electrical machine configured in this way can achieve low noise and large capacity.

（第５の実施の形態）
本発明に基づく第５の実施の形態の車両用回転電機について図を参照し詳細に説明する。図１１は、本発明に基づく第５の実施の形態の車両用回転電機の反駆動側軸受の縦断面図である。図１２は、図１１のＥ−Ｅ断面図である。尚、図１乃至図１０に記載したものと同一の構造のものには、同符号を付して説明を省略する。 (Fifth embodiment)
A vehicular rotating electrical machine according to a fifth embodiment of the present invention will be described in detail with reference to the drawings. FIG. 11 is a longitudinal sectional view of a non-driving side bearing of a vehicular rotating electrical machine according to a fifth embodiment of the present invention. 12 is a cross-sectional view taken along the line E-E in FIG. 11. The same structure as that shown in FIG. 1 to FIG.

本発明に基づく第５の実施の形態の車両用回転電機において、反駆動側の４点接触玉軸受１０及び円筒コロ軸受１１及びハウジング１２の構成は、本発明で説明した形態と同じである。しかしながら、本実施の形態の車両用回転電機では４点接触玉軸受１０が内側に構成し、円筒コロ軸受１１を外側に構成ししている点で異なる。 In the vehicular rotating electrical machine according to the fifth embodiment of the present invention, the configurations of the four-point contact ball bearing 10, the cylindrical roller bearing 11, and the housing 12 on the non-driving side are the same as those described in the present invention. However, the rotating electrical machine for a vehicle according to the present embodiment is different in that the four-point contact ball bearing 10 is configured on the inner side and the cylindrical roller bearing 11 is configured on the outer side.

本実施の形態の車両用回転電機は、ハウジング１２内径面に全周１箇所のキー溝を設け、これに対抗する位置の４点接触玉軸受１０の外輪にもキー溝を設け、前記互いのキー溝に矩形のキー１７を具備して、軸受外輪の移動防止を図れる構造とすることを特徴のひとつとしている。 The vehicular rotating electrical machine of the present embodiment is provided with one key groove on the inner diameter surface of the housing 12 and a key groove on the outer ring of the four-point contact ball bearing 10 at a position opposed to the key groove. One of the features is that a rectangular key 17 is provided in the key groove to prevent movement of the bearing outer ring.

また、本実施の形態の車両用回転電機も、反駆動側の軸受けにラジアル荷重の許容値は低いがスラスト荷重の許容値が高い軸受（４点接触玉軸受１０）とスラスト荷重の許容値は低いがラジアル荷重の許容値が高い軸受（円筒コロ軸受１１）を組合せているので、ハス歯歯車を使用しスラスト荷重が高い場合でも、車両用回転電機の大容量化をすることが出来る。更に、４点接触玉軸受は、すきま嵌めとしているので、４点接触玉軸受けにラジアル荷重が、４点接触玉軸受１０にかかるのを防止することが出来る。 In addition, the rotating electrical machine for a vehicle according to the present embodiment also has a bearing with a low allowable radial load but a high allowable thrust load (4-point contact ball bearing 10) and an allowable thrust load on the non-drive side bearing. Since the bearing (cylindrical roller bearing 11) having a low radial load tolerance is combined, the capacity of the vehicular rotating electrical machine can be increased even when a helical gear is used and the thrust load is high. Further, since the four-point contact ball bearing has a clearance fit, it is possible to prevent a radial load from being applied to the four-point contact ball bearing 10 on the four-point contact ball bearing.

このように構成された車両用回転電機は、低騒音化と大容量化を実現することが出来る。 The vehicular rotating electrical machine configured in this way can achieve low noise and large capacity.

（第６の実施の形態）
本発明に基づく第６の実施の形態の車両用回転電機について図を参照し詳細に説明する。図１３は、本発明に基づく第６の実施の形態の車両用回転電機の反駆動側軸受の縦断面図である。図１４は、図１３のＦ−Ｆ断面図である。尚、図１乃至図１２に記載したものと同一の構造のものには、同符号を付して説明を省略する。 (Sixth embodiment)
A vehicular rotating electrical machine according to a sixth embodiment of the present invention will be described in detail with reference to the drawings. FIG. 13: is a longitudinal cross-sectional view of the counter drive side bearing of the rotary electric machine for vehicles of 6th Embodiment based on this invention. 14 is a cross-sectional view taken along line FF in FIG. The same structure as that shown in FIG. 1 to FIG.

本発明に基づく第６の実施の形態の車両用回転電機において、反駆動側の４点接触玉軸受１０及び円筒コロ軸受１１及びハウジング１２の構成は、第５の実施例で説明した形態と同じであるため省略する。   In the vehicular rotating electrical machine according to the sixth embodiment of the present invention, the configurations of the four-point contact ball bearing 10, the cylindrical roller bearing 11, and the housing 12 on the counter drive side are the same as those described in the fifth embodiment. Therefore, it is omitted.

本実施の形態の車両用回転電機は、ハウジング１２内径面に全周１箇所のキー溝を設け、これに対抗する位置の４点接触玉軸受１０の外輪にもキー溝を設け、前記互いのキー溝に球状のキー１８を具備して、軸受外輪の移動防止を図れる構造としていることを特徴のひとつとしている。 The vehicular rotating electrical machine of the present embodiment is provided with one key groove on the inner diameter surface of the housing 12 and a key groove on the outer ring of the four-point contact ball bearing 10 at a position opposed to the key groove. One feature is that a spherical key 18 is provided in the key groove to prevent movement of the bearing outer ring.

また、本実施の形態の車両用回転電機も、反駆動側の軸受けにラジアル荷重の許容値は低いがスラスト荷重の許容値が高い軸受（４点接触玉軸受１０）とスラスト荷重の許容値は低いがラジアル荷重の許容値が高い軸受（円筒コロ軸受１１）を組合せているので、ハス歯歯車を使用しスラスト荷重が高い場合でも、車両用回転電機の大容量化をすることが出来る。更に、４点接触玉軸受は、すきま嵌めとしているので、４点接触玉軸受けにラジアル荷重が、４点接触玉軸受１０にかかるのを防止することが出来る。 In addition, the rotating electrical machine for a vehicle according to the present embodiment also has a bearing with a low allowable radial load but a high allowable thrust load (4-point contact ball bearing 10) and an allowable thrust load on the non-drive side bearing. Since the bearing (cylindrical roller bearing 11) having a low radial load tolerance is combined, the capacity of the vehicular rotating electrical machine can be increased even when a helical gear is used and the thrust load is high. Further, since the four-point contact ball bearing has a clearance fit, it is possible to prevent a radial load from being applied to the four-point contact ball bearing 10 on the four-point contact ball bearing.

このように構成された車両用回転電機は、低騒音化と大容量化を実現することが出来る。 The vehicular rotating electrical machine configured in this way can achieve low noise and large capacity.

（第７の実施の形態）
本発明に基づく第７の実施の形態の車両用回転電機について図を参照し詳細に説明する。図１５は、本発明に基づく第７の実施の形態の車両用回転電機の反駆動側軸受の縦断面図である。図１６は、図１５のＧ−Ｇ断面図である。尚、図１乃至図１４に記載したものと同一の構造のものには、同符号を付して説明を省略する。 (Seventh embodiment)
A vehicular rotating electrical machine according to a seventh embodiment of the present invention will be described in detail with reference to the drawings. FIG. 15 is a longitudinal sectional view of a non-driving side bearing of a rotating electrical machine for a vehicle according to a seventh embodiment of the present invention. 16 is a cross-sectional view taken along the line GG in FIG. Note that the same structure as that described in FIGS. 1 to 14 is denoted by the same reference numeral, and description thereof is omitted.

本発明に基づく第７の実施の形態の車両用回転電機において、反駆動側の４点接触玉軸受１０及び円筒コロ軸受１１及びハウジング１２の構成は、第５の実施例で説明した形態と同じであるため省略する。   In the rotating electrical machine for a vehicle according to the seventh embodiment based on the present invention, the configurations of the four-point contact ball bearing 10, the cylindrical roller bearing 11, and the housing 12 on the non-driving side are the same as those described in the fifth embodiment. Therefore, it is omitted.

本実施の形態の車両用回転電機は、ハウジング１２の側面に１箇所のキー溝を設け、これに対抗する位置の４点接触玉軸受１０の外輪角に傾斜した平面を設け、前記ハウジングのキー溝と４点接触玉軸受の傾斜した平面にキー１５が、対向し嵌り合う矩形で一辺が傾斜平面を有するキー１９を具備して、軸受外輪の移動防止を図れる構造としていることを特徴のひとつとしている。 The vehicular rotating electrical machine according to the present embodiment is provided with one key groove on the side surface of the housing 12 and a plane inclined to the outer ring angle of the four-point contact ball bearing 10 at a position opposed to the key groove. One of the features is that the key 15 is provided on the inclined plane of the groove and the four-point contact ball bearing with the key 19 having a rectangular shape that faces each other and has an inclined flat surface so that the outer ring of the bearing can be prevented from moving. It is said.

また、本実施の形態の車両用回転電機も、反駆動側の軸受けにラジアル荷重の許容値は低いがスラスト荷重の許容値が高い軸受（４点接触玉軸受１０）とスラスト荷重の許容値は低いがラジアル荷重の許容値が高い軸受（円筒コロ軸受１１）を組合せているので、ハス歯歯車を使用しスラスト荷重が高い場合でも、車両用回転電機の大容量化をすることが出来る。更に、４点接触玉軸受は、すきま嵌めとしているので、４点接触玉軸受けにラジアル荷重が、４点接触玉軸受１０にかかるのを防止することが出来る。 In addition, the rotating electrical machine for a vehicle according to the present embodiment also has a bearing with a low allowable radial load but a high allowable thrust load (4-point contact ball bearing 10) and an allowable thrust load on the non-drive side bearing. Since the bearing (cylindrical roller bearing 11) having a low radial load tolerance is combined, the capacity of the vehicular rotating electrical machine can be increased even when a helical gear is used and the thrust load is high. Further, since the four-point contact ball bearing has a clearance fit, it is possible to prevent a radial load from being applied to the four-point contact ball bearing 10 on the four-point contact ball bearing.

このように構成された車両用回転電機は、低騒音化と大容量化を実現することが出来る。 The vehicular rotating electrical machine configured in this way can achieve low noise and large capacity.

（第８の実施の形態）
本発明に基づく第８の実施の形態の車両用回転電機について図を参照し詳細に説明する。図１７は、本発明に基づく第８の実施の形態の車両用回転電機の反駆動側軸受の縦断面図である。図１８は、図１７のＧ−Ｇ断面図である。尚、図１乃至図１６に記載したものと同一の構造のものには、同符号を付して説明を省略する。 (Eighth embodiment)
A vehicular rotating electrical machine according to an eighth embodiment of the present invention will be described in detail with reference to the drawings. FIG. 17 is a longitudinal sectional view of a non-driving side bearing of a vehicular rotating electrical machine according to an eighth embodiment of the present invention. 18 is a cross-sectional view taken along the line GG in FIG. Note that the same structure as that described in FIGS. 1 to 16 is denoted by the same reference numeral, and description thereof is omitted.

本発明に基づく第６の実施の形態の車両用回転電機において、反駆動側の４点接触玉軸受１０及び円筒コロ軸受１１及びハウジング１２の構成は、第５の実施例で説明した形態と同じであるため省略する。   In the vehicular rotating electrical machine according to the sixth embodiment of the present invention, the configurations of the four-point contact ball bearing 10, the cylindrical roller bearing 11, and the housing 12 on the counter drive side are the same as those described in the fifth embodiment. Therefore, it is omitted.

本実施の形態の車両用回転電機は、ハウジング１２内径面に全周１箇所のキー溝を設け、これに対抗する位置の４点接触玉軸受１０の外輪にもキー溝を設け、前記互いのキー溝に円筒状のキー２０を具備して、軸受外輪の移動防止を図れる構造としていることを特徴のひとつとしている。 The vehicular rotating electrical machine of the present embodiment is provided with one key groove on the inner diameter surface of the housing 12 and a key groove on the outer ring of the four-point contact ball bearing 10 at a position opposed to the key groove. One of the features is that a cylindrical key 20 is provided in the key groove to prevent movement of the bearing outer ring.

また、本実施の形態の車両用回転電機も、反駆動側の軸受けにラジアル荷重の許容値は低いがスラスト荷重の許容値が高い軸受（４点接触玉軸受１０）とスラスト荷重の許容値は低いがラジアル荷重の許容値が高い軸受（円筒コロ軸受１１）を組合せているので、ハス歯歯車を使用しスラスト荷重が高い場合でも、車両用回転電機の大容量化をすることが出来る。更に、４点接触玉軸受は、すきま嵌めとしているので、４点接触玉軸受けにラジアル荷重が、４点接触玉軸受１０にかかるのを防止することが出来る。 In addition, the rotating electrical machine for a vehicle according to the present embodiment also has a low radial load tolerance but a high thrust load tolerance (four-point contact ball bearing 10) and a thrust load tolerance on the non-drive side bearing. Since the bearing (cylindrical roller bearing 11) having a low allowable radial load is combined, the capacity of the rotating electrical machine for the vehicle can be increased even when a helical gear is used and the thrust load is high. Further, since the four-point contact ball bearing has a clearance fit, it is possible to prevent a radial load from being applied to the four-point contact ball bearing 10 on the four-point contact ball bearing.

このように構成された車両用回転電機は、低騒音化と大容量化を実現することが出来る。 The vehicular rotating electrical machine configured in this way can achieve low noise and large capacity.

尚、本発明に基づく車両用回転電機は、電車に使用しても良い。 In addition, you may use the rotary electric machine for vehicles based on this invention for a train.

本発明に基づく第１の実施の形態の車両用回転電機と駆動装置の縦断面図である。It is a longitudinal cross-sectional view of the rotating electrical machine for vehicles and the drive device of 1st Embodiment based on this invention. 本発明に基づく第１の実施の形態の回転電機の断面図である。It is sectional drawing of the rotary electric machine of 1st Embodiment based on this invention. 本発明に基づく第３の実施の形態の回転電機の反駆動側軸受部の縦断面図である。It is a longitudinal cross-sectional view of the non-driving side bearing part of the rotary electric machine of 3rd Embodiment based on this invention. 図３のＡ―Ａ断面図である。FIG. 4 is a cross-sectional view taken along line AA in FIG. 3. 本発明に基づく第２の実施の形態の車両用回転電機の反駆動側軸受の縦断面図である。It is a longitudinal cross-sectional view of the non-driving side bearing of the rotary electric machine for vehicles of 2nd Embodiment based on this invention. 図５のＢ―Ｂ断面図である。FIG. 6 is a cross-sectional view taken along the line BB in FIG. 5. 本発明に基づく第３の実施の形態の車両用回転電機の反駆動側軸受の縦断面図である。It is a longitudinal cross-sectional view of the counter drive side bearing of the rotary electric machine for vehicles of 3rd Embodiment based on this invention. 図７のＣ―Ｃ断面図である。It is CC sectional drawing of FIG. 本発明に基づく第４の実施の形態の車両用回転電機の反駆動側軸受の縦断面図である。It is a longitudinal cross-sectional view of the counter drive side bearing of the rotary electric machine for vehicles of 4th Embodiment based on this invention. 図９のＤ―Ｄ断面図である。FIG. 10 is a DD cross-sectional view of FIG. 9. 本発明に基づく第５の実施の形態の車両用回転電機の反駆動側軸受の縦断面図である。It is a longitudinal cross-sectional view of the non-driving side bearing of the rotary electric machine for vehicles of 5th Embodiment based on this invention. 図１０のＥ―Ｅ断面図である。It is EE sectional drawing of FIG. 本発明に基づく第６の実施の形態の車両用回転電機の反駆動側軸受の縦断面図である。It is a longitudinal cross-sectional view of the counter drive side bearing of the rotary electric machine for vehicles of 6th Embodiment based on this invention. 図１３のＦ―Ｆ断面図である。It is FF sectional drawing of FIG. 本発明に基づく第７の実施の形態の車両用回転電機の反駆動側軸受の縦断面図である。It is a longitudinal cross-sectional view of the non-driving side bearing of the rotary electric machine for vehicles of 7th Embodiment based on this invention. 図１５のＧ―Ｇ断面図である。It is GG sectional drawing of FIG. 本発明に基づく第８の実施の形態の車両用回転電機の反駆動側軸受の縦断面図である。It is a longitudinal cross-sectional view of the non-driving side bearing of the rotary electric machine for vehicles of 8th Embodiment based on this invention. 図１７のＨ―Ｈの断面図である。It is sectional drawing of HH of FIG. 従来の車両用回転電機及び駆動装置の構成図である。It is a block diagram of the conventional rotating electrical machine for vehicles and a drive device. 従来の車両用回転電機の縦断面図である。It is a longitudinal cross-sectional view of the conventional rotating electrical machine for vehicles. ハス歯車の斜視図である。It is a perspective view of a helical gear. 法線方向荷重Ｔとスラスト方向荷重Ｆの関係図である。FIG. 6 is a relationship diagram between a normal direction load T and a thrust direction load F.

符号の説明Explanation of symbols

１ ピニオン
２ 駆動軸
３ 駆動側軸受
４ 反駆動側軸受
５ 固定子
６ 回転子
７ ギヤ
８ 車輪
９ ギヤケース
１０ ４点接触玉軸受
１１ 円筒コロ軸受
１２ ハウジング
１３ キー
１４ 球状キー
１５ 傾斜キー
１６ 円筒キー
１７ キー
１８ 球状キー
１９ 傾斜キー
２０ 円筒状キー DESCRIPTION OF SYMBOLS 1 Pinion 2 Drive shaft 3 Drive side bearing 4 Counter drive side bearing 5 Stator 6 Rotor 7 Gear 8 Wheel 9 Gear case 10 Four point contact ball bearing 11 Cylindrical roller bearing 12 Housing 13 Key 14 Spherical key 15 Inclination key 16 Cylindrical key 17 Key 18 Spherical key 19 Tilt key 20 Cylindrical key

Claims (10)

固定子と、回転子と、固定子と接続された駆動軸と、
前記駆動軸の駆動側に設けられ、前記駆動軸を回転自在に支持する円筒ゴロ軸受と、
前記駆動軸の反駆動側に設けられ前記駆動軸を回転自在に支持する円筒コロ軸受と、
前記駆動軸の反駆動側で、前記反駆動側の前記駆動軸に設けられた前記円筒コロ軸受よりも外側に設けられた４点接触形玉軸受とを有し、
前記４点接触玉軸受の外輪と当該４点接触玉軸受の外輪が嵌合する当該回転電機の軸箱内径面との嵌合面に、前記反駆動側に配置した前記円筒コロ軸受のラジアル隙間以上の隙間を設け、
前記４点接触玉軸受の外輪の円周上に矩形のキー溝を設け、同様に前記４点接触玉軸受が嵌合される軸箱内周面の前記矩形キー溝が対応する位置に同様の矩形のキー溝を設け、互いの矩形のキー溝に矩形のキーが挿入されることを特徴とする車両用回転電機。 A stator, a rotor, a drive shaft connected to the stator,
A cylindrical roller bearing provided on the drive side of the drive shaft and rotatably supporting the drive shaft;
A cylindrical roller bearing provided on the non-drive side of the drive shaft and rotatably supporting the drive shaft;
A four-point contact type ball bearing provided outside the cylindrical roller bearing provided on the drive shaft on the counter drive side on the counter drive side of the drive shaft;
A radial clearance of the cylindrical roller bearing disposed on the non-driving side on a fitting surface between the outer ring of the four-point contact ball bearing and the inner surface of the shaft box of the rotating electrical machine in which the outer ring of the four-point contact ball bearing is fitted. Provide the above gap,
A rectangular key groove is provided on the circumference of the outer ring of the four-point contact ball bearing, and similarly, the rectangular key groove on the inner peripheral surface of the axle box to which the four-point contact ball bearing is fitted is similar to the corresponding position. A rotating electrical machine for a vehicle, wherein a rectangular keyway is provided, and a rectangular key is inserted into each rectangular keyway. 前記請求項１記載の車両用回転電機において、
反駆動側の４点接触玉軸受の外輪円周上に球状の溝を設け、前記４点接触玉軸受が嵌合される軸箱内周面の前記球状溝が対応する位置に同様の片端が球状の溝を設け、互いの球状の溝に球状のキーが挿入されることを特徴とする車両用回転電機。 The rotating electrical machine for a vehicle according to claim 1, wherein
A spherical groove is provided on the outer ring circumference of the four-point contact ball bearing on the counter drive side, and a similar one end is located at a position corresponding to the spherical groove on the inner peripheral surface of the axle box to which the four-point contact ball bearing is fitted. A rotating electrical machine for a vehicle, characterized in that a spherical groove is provided and a spherical key is inserted into each spherical groove. 前記請求項１記載の車両用回転電機において、
反駆動側の前記４点接触玉軸受の外輪円周上と外輪の側面に掛かる傾斜した平面を設け、前記４点接触玉軸受が嵌合される軸箱内周面と側面に放射方向に、矩形のキー溝が前記軸受の傾斜平面に対応する位置に設けられ、
前記軸箱内周面と側面に放射方向に設けられたキー溝に矩形のキーを挿入し、前記キーの軸受に接する面が、前記４点接触玉軸受に設けた傾斜面に互いの面が一致するよう構成したキーを有することを特徴とする車両用回転電機。 The rotating electrical machine for a vehicle according to claim 1, wherein
An inclined plane is provided on the outer ring circumference of the four-point contact ball bearing on the counter-drive side and on the side surface of the outer ring, and radially on the inner peripheral surface and side surface of the axle box on which the four-point contact ball bearing is fitted, A rectangular keyway is provided at a position corresponding to the inclined plane of the bearing;
A rectangular key is inserted into the key groove provided in the radial direction on the inner peripheral surface and the side surface of the axle box, and the surfaces in contact with the bearings of the key are mutually inclined surfaces provided on the four-point contact ball bearing. A rotating electrical machine for a vehicle having a key configured to match. 前記請求項１記載の車両用回転電機において、
反駆動側の前記４点接触玉軸受の外輪円周上に円筒の溝を設け、同様にこの軸受が嵌合される軸箱内周面に前記円筒状溝が対応する位置に同様の円筒状溝を設け、互いの円筒状の溝に円筒のキーが挿入されることを特徴とする車両用回転電機。 The rotating electrical machine for a vehicle according to claim 1, wherein
A cylindrical groove is provided on the outer ring circumference of the four-point contact ball bearing on the non-driving side, and the same cylindrical shape is provided at the position corresponding to the cylindrical groove on the inner peripheral surface of the shaft box where the bearing is fitted. A rotating electrical machine for a vehicle, characterized in that a groove is provided and a cylindrical key is inserted into each cylindrical groove. 固定子と、回転子と、固定子と接続された駆動軸と、
前記駆動軸の駆動側に設けられ、前記駆動軸を回転自在に支持する円筒ゴロ軸受と、
前記駆動軸の反駆動側に設けられ前記駆動軸を回転自在に支持する円筒コロ軸受と、
前記駆動軸の反駆動側で、前記反駆動側の前記駆動軸に設けられた前記円筒コロ軸受よりも内側に設けられた４点接触形玉軸受とを有し、
前記４点接触玉軸受の外輪と当該４点接触玉軸受の外輪が嵌合する当該回転電機の軸箱内径面との嵌合面に、前記反駆動側に配置した前記円筒コロ軸受のラジアル隙間以上の隙間を設け、
前記４点接触玉軸受の外輪の円周上に矩形のキー溝を設け、同様に前記４点接触玉軸受が嵌合される軸箱内周面の前記矩形キー溝が対応する位置に同様の矩形のキー溝を設け、互いの矩形のキー溝に矩形のキーが挿入されることを特徴とする車両用回転電機。 A stator, a rotor, a drive shaft connected to the stator,
A cylindrical roller bearing provided on the drive side of the drive shaft and rotatably supporting the drive shaft;
A cylindrical roller bearing provided on the non-drive side of the drive shaft and rotatably supporting the drive shaft;
A four-point contact ball bearing provided on the inner side of the cylindrical roller bearing provided on the driving shaft on the counter driving side on the counter driving side of the driving shaft;
A radial clearance of the cylindrical roller bearing disposed on the non-driving side on a fitting surface between the outer ring of the four-point contact ball bearing and the inner surface of the shaft box of the rotating electrical machine in which the outer ring of the four-point contact ball bearing is fitted. Provide the above gap,
A rectangular key groove is provided on the circumference of the outer ring of the four-point contact ball bearing, and similarly, the rectangular key groove on the inner peripheral surface of the axle box to which the four-point contact ball bearing is fitted is similar to the corresponding position. A rotating electrical machine for a vehicle, wherein a rectangular keyway is provided, and a rectangular key is inserted into each rectangular keyway. 前記請求項５記載の車両用回転電機において、
反駆動側の４点接触玉軸受の外輪円周上に球状の溝を設け、前記４点接触玉軸受が嵌合される軸箱内周面の前記球状溝が対応する位置に同様の片端が球状の溝を設け、互いの球状の溝に球状のキーが挿入されることを特徴とする車両用回転電機。 In the rotating electrical machine for a vehicle according to claim 5,
A spherical groove is provided on the outer ring circumference of the four-point contact ball bearing on the counter drive side, and a similar one end is located at a position corresponding to the spherical groove on the inner peripheral surface of the axle box to which the four-point contact ball bearing is fitted. A rotating electrical machine for a vehicle, characterized in that a spherical groove is provided and a spherical key is inserted into each spherical groove. 前記請求項５記載の車両用回転電機において、
反駆動側の前記４点接触玉軸受の外輪円周上と外輪の側面に掛かる傾斜した平面を設け、前記４点接触玉軸受が嵌合される軸箱内周面と側面に放射方向に、矩形のキー溝が前記軸受の傾斜平面に対応する位置に設けられ、
前記軸箱内周面と側面に放射方向に設けられたキー溝に矩形のキーを挿入し、前記キーの軸受に接する面が、前記４点接触玉軸受に設けた傾斜面に互いの面が一致するよう構成したキーを有することを特徴とする車両用回転電機。 In the rotating electrical machine for a vehicle according to claim 5,
An inclined plane is provided on the outer ring circumference of the four-point contact ball bearing on the counter-drive side and on the side surface of the outer ring, and radially on the inner peripheral surface and side surface of the axle box on which the four-point contact ball bearing is fitted, A rectangular keyway is provided at a position corresponding to the inclined plane of the bearing;
A rectangular key is inserted into the key groove provided in the radial direction on the inner peripheral surface and the side surface of the axle box, and the surfaces in contact with the bearings of the key are mutually inclined surfaces provided on the four-point contact ball bearing. A rotating electrical machine for a vehicle having a key configured to match. 前記請求項５記載の車両用回転電機において、
反駆動側の前記４点接触玉軸受の外輪円周上に円筒の溝を設け、同様にこの軸受が嵌合される軸箱内周面に前記円筒状溝が対応する位置に同様の円筒状溝を設け、互いの円筒状の溝に円筒のキーが挿入されることを特徴とする車両用回転電機。 In the rotating electrical machine for a vehicle according to claim 5,
A cylindrical groove is provided on the outer ring circumference of the four-point contact ball bearing on the non-driving side, and the same cylindrical shape is provided at the position corresponding to the cylindrical groove on the inner peripheral surface of the shaft box where the bearing is fitted. A rotating electrical machine for a vehicle, characterized in that a groove is provided and a cylindrical key is inserted into each cylindrical groove. 固定子と、回転子と、固定子と接続された駆動軸と、
前記駆動軸の駆動側に設けられ、前記駆動軸を回転自在に支持する円筒ゴロ軸受と、
前記駆動軸の反駆動側に設けられ前記駆動軸を回転自在に支持する円筒コロ軸受と、
前記駆動軸の反駆動側に設けられた４点接触形玉軸受とを備えたことを特徴とする車両用回転電機。 A stator, a rotor, a drive shaft connected to the stator,
A cylindrical roller bearing provided on the drive side of the drive shaft and rotatably supporting the drive shaft;
A cylindrical roller bearing provided on the non-drive side of the drive shaft and rotatably supporting the drive shaft;
A vehicular rotating electrical machine comprising: a four-point contact ball bearing provided on a non-driving side of the driving shaft. 固定子と、回転子と、固定子と接続された駆動軸と、
前記駆動軸の駆動側に設けられ、大きなラジアル荷重を許容可能な軸受と、
前記駆動軸の反駆動側に設けられ、大きなラジアル荷重を許容可能な軸受と、
前記駆動軸の反駆動側に設けられ、大きなスラスト荷重を許容できる軸受とを備えたことを特徴とする車両用回転電機。 A stator, a rotor, a drive shaft connected to the stator,
A bearing provided on the drive side of the drive shaft and capable of accepting a large radial load;
A bearing provided on the non-drive side of the drive shaft and capable of accepting a large radial load;
A rotating electrical machine for a vehicle, comprising a bearing provided on a non-driving side of the drive shaft and capable of allowing a large thrust load.
JP2005260796A 2005-09-08 2005-09-08 Rotating electric machine for vehicle Pending JP2007074856A (en)

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JP2005260796A JP2007074856A (en) 2005-09-08 2005-09-08 Rotating electric machine for vehicle
KR1020060017582A KR100765400B1 (en) 2005-09-08 2006-02-23 Rotary electrical machine for a vehicle
CN2006100514354A CN1929257B (en) 2005-09-08 2006-02-24 Automotive dynamoelectric machine

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