JPH0711807U - Storage battery type drive - Google Patents
Storage battery type driveInfo
- Publication number
- JPH0711807U JPH0711807U JP042904U JP4290493U JPH0711807U JP H0711807 U JPH0711807 U JP H0711807U JP 042904 U JP042904 U JP 042904U JP 4290493 U JP4290493 U JP 4290493U JP H0711807 U JPH0711807 U JP H0711807U
- Authority
- JP
- Japan
- Prior art keywords
- storage battery
- electric motors
- gear
- electric motor
- output
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Control Of Multiple Motors (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
(57)【要約】
【構成】 蓄電池１５と、この蓄電池１５に直列に接続
される２つの互いに同一定格の電動機１８、１９と、両
電動機１８、１９の出力を合成する出力合成機構２０と
を備える。
【効果】 負荷に応じ異なる設計仕様の電動機を製造す
る必要がなく、電動機を量産化してコスト低減を図るこ
とができ、電動機部品も共通化できる。
(57) [Summary] [Structure] A storage battery 15, two electric motors 18 and 19 of the same rating connected in series to the storage battery 15, and an output combining mechanism 20 for combining the outputs of both electric motors 18 and 19 are provided. Prepare [Effect] It is not necessary to manufacture electric motors having different design specifications according to loads, mass production of electric motors can be achieved, and cost can be reduced, and electric motor parts can be shared.
Description
【０００１】[0001]
本考案は、蓄電池に接続される電動機を駆動源とする駆動装置に関し、例えば 、蓄電池式フォークリフトトラックを駆動するのに用いることができる。 The present invention relates to a drive device that uses an electric motor connected to a storage battery as a drive source, and can be used, for example, to drive a storage battery type forklift truck.
【０００２】[0002]
図３は、従来の蓄電池式フォークリフトトラックの走行系駆動装置１００を示 す。この駆動装置１００は、蓄電池１０１と、アーマチュア端子１０２ａ、１０ ２ｂおよびフィールドコイル端子１０２ｃ、１０２ｄを有する単一の電動機１０ ２とを備え、その電動機１０２は蓄電池１０１に制御器１１６と前後進切り換え 用開閉器１１７とを介し接続される。その電動機１０２の出力は減速ギヤ機構１ ０３、終減速ギヤ機構１０５、差動歯車装置１１５、車軸１０６を介し駆動輪１ ０７に伝達される。その減速ギヤ機構１０３は、電動機出力軸１０２ｅに取り付 けられた第１歯車１０８に、この第１歯車１０８より歯数の多い第２歯車１０９ が噛み合い、この第２歯車１０９に伝動軸１１０を介し連結された第３歯車１１ １に、この第３歯車１１１より歯数の多い第４歯車１１２が噛み合う。その第４ 歯車１１２に終減速ギヤ機構１０５の第１ベベルギヤ１１３が連結され、この第 １ベベルギヤ１１３に噛み合う第２ベベルギヤ１１４が差動歯車装置１１５を介 し車軸１０６に連結されている。 FIG. 3 shows a conventional drive system 100 for a storage battery type forklift truck. This drive device 100 comprises a storage battery 101 and a single electric motor 102 having armature terminals 102a, 102b and field coil terminals 102c, 102d. The electric motor 102 is a storage battery 101 for switching between a controller 116 and forward / backward movement. It is connected via the switch 117. The output of the electric motor 102 is transmitted to the drive wheels 107 via the reduction gear mechanism 103, the final reduction gear mechanism 105, the differential gear device 115, and the axle 106. In the reduction gear mechanism 103, a second gear 109 having a larger number of teeth than the first gear 108 meshes with a first gear 108 attached to the motor output shaft 102e, and a transmission shaft 110 is attached to the second gear 109. The fourth gear 112, which has a larger number of teeth than the third gear 111, meshes with the third gear 111, which is connected via the third gear 111. A first bevel gear 113 of the final reduction gear mechanism 105 is connected to the fourth gear 112, and a second bevel gear 114 meshing with the first bevel gear 113 is connected to the axle 106 via a differential gear device 115.
【０００３】 上記のような駆動装置１００により大きさの異なる負荷を駆動する場合、電動 機１０２は負荷の大きさに応じた定格のものを用いる必要がある。例えば、最大 積載荷重１〜３トン程度の小型の蓄電池式フォークリフトトラックでは、蓄電池 １０１の出力電圧は一般的に４８Ｖとされ、この出力に応じて電動機１０２の定 格が定められ、また、最大積載荷重４トン程度以上の大型の蓄電池式フォークリ フトトラックでは、蓄電池１０１の出力電圧は一般的に７２Ｖ〜９６Ｖとされる と共に電流は４８Ｖの場合と同一とされ、この出力に応じて電動機１０２の定格 が定められていた。When driving loads of different sizes by the drive device 100 as described above, it is necessary to use a motor having a rating according to the size of the load. For example, in a small storage battery type forklift truck with a maximum load of 1 to 3 tons, the output voltage of the storage battery 101 is generally 48V, and the rating of the electric motor 102 is determined according to this output. In a large storage battery type forklift truck with a load of about 4 tons or more, the output voltage of the storage battery 101 is generally 72V to 96V, and the current is the same as the case of 48V, and the motor 102 is rated according to this output. Was set.
【０００４】[0004]
しかし、負荷に応じ異なる定格の電動機１０２を用いると、負荷に応じ異なる 設計仕様の電動機１０２を製造する必要があり、蓄電池式駆動装置において最も コスト比重の大きな電動機１０２を量産化することができないため、コスト低減 を図ることができず、電動機部品も増加するという問題がある。 However, if an electric motor 102 having a different rating depending on the load is used, it is necessary to manufacture the electric motor 102 having a design specification different depending on the load, and it is not possible to mass-produce the electric motor 102 having the largest cost specific gravity in the storage battery drive device. However, there is a problem that the cost cannot be reduced and the number of electric motor parts is increased.
【０００５】 本考案は、上記従来技術の問題を解決することのできる蓄電池式駆動装置を提 供することを目的とする。An object of the present invention is to provide a storage battery type drive device that can solve the above-mentioned problems of the prior art.
【０００６】[0006]
本考案の蓄電池式駆動装置は、蓄電池と、この蓄電池に直列に接続される２つ の互いに同一定格の電動機と、両電動機の出力を合成する出力合成機構とを備え る。 The storage battery type drive device of the present invention comprises a storage battery, two electric motors of the same rating connected in series to the storage battery, and an output combining mechanism for combining the outputs of both electric motors.
【０００７】[0007]
本考案の構成によれば、２つの電動機は蓄電池に直列に接続されるので、両電 動機の合成出力は各電動機個々の出力の２倍になり、各電動機個々の定格は合成 出力の１／２の出力に対応するもので足りる。これにより、小さな負荷は従来と 同様に単一の電動機を用いる駆動装置により駆動し、大きな負荷は本考案の構成 の駆動装置を用いて駆動することで、負荷が異なっても等しい定格の電動機を用 いることができる。 According to the configuration of the present invention, since the two electric motors are connected in series to the storage battery, the combined output of both electric motors is twice the output of each electric motor, and the rating of each electric motor is 1 / of the combined output. The one corresponding to the output of 2 is sufficient. As a result, a small load is driven by a drive unit that uses a single electric motor as in the conventional case, and a large load is driven by the drive unit having the configuration of the present invention, so that electric motors of the same rating can be obtained even if the loads are different. Can be used.
【０００８】[0008]
以下、図面を参照して本考案の実施例について説明する。 Embodiments of the present invention will be described below with reference to the drawings.
【０００９】 図１に示すフォークリフトトラック１は、車体２の前部側に取り付けられた荷 役装置３を備え、その車体２は駆動輪とされた前輪５と操舵輪とされた後輪６と により支持され、その前輪５と後輪６との間は、ハンドル７、シート８等を備え ると共にヘッドガード９に囲まれた運転空間とされている。その荷役装置３は、 車体２の前部にティルトシリンダ１０を介して取り付けられた第１マスト１１ａ と、この第１マスト１１ａにリフトシリンダ１２を介して昇降可能に取り付けら れた第２マスト１１ｂと、この第２マスト１１ｂに昇降可能に取り付けられたリ フトブラケット（図示省略）と、このリフトブラケットに取り付けられたフォー ク１３とを有し、そのリフトブラケットと第１マスト１１ａとを連結するチェー ン（図示省略）がリフトシリンダ１２に取り付けられたチェーンホイール（図示 省略）に巻き掛けられ、第２マスト１１ｂの昇降に連動してフォーク１３が昇降 するものとされている。A forklift truck 1 shown in FIG. 1 includes a cargo handling device 3 attached to a front side of a vehicle body 2, and the vehicle body 2 includes front wheels 5 serving as driving wheels and rear wheels 6 serving as steering wheels. A steering wheel 7, a seat 8 and the like are provided between the front wheel 5 and the rear wheel 6 to provide an operating space surrounded by a head guard 9. The cargo handling device 3 includes a first mast 11a attached to the front portion of the vehicle body 2 via a tilt cylinder 10 and a second mast 11b attached to the first mast 11a via a lift cylinder 12 so as to be vertically movable. And a lift bracket (not shown) attached to the second mast 11b so as to be able to move up and down, and a fork 13 attached to the lift bracket, and connects the lift bracket and the first mast 11a. A chain (not shown) is wound around a chain wheel (not shown) attached to the lift cylinder 12, and the fork 13 is moved up and down in conjunction with the up and down movement of the second mast 11b.
【００１０】 その前輪５は、図２に示す駆動装置１４により駆動される。その駆動装置１４ は、蓄電池１５と、アーマチュア端子１８ａ、１８ｂ、１９ａ、１９ｂおよびフ ィールドコイル端子１８ｃ、１８ｄ、１９ｃ、１９ｄを有する２つの互いに同一 定格の電動機１８、１９と、両電動機１８、１９の出力を合成する出力合成機構 ２０とを備え、その２つの電動機１８、１９は蓄電池１５に制御器３１と前後進 切り換え用開閉器３２とを介し直列に接続される。その出力合成機構２０の出力 は、車体２に取り付けられる終減速ギヤ機構２５、差動歯車装置２９、車体２に 支持される前輪車軸２６を介し前輪５に伝達される。The front wheels 5 are driven by the drive device 14 shown in FIG. The drive unit 14 comprises a storage battery 15, two mutually rated motors 18, 19 having armature terminals 18a, 18b, 19a, 19b and field coil terminals 18c, 18d, 19c, 19d, and both motors 18, 19. And an output combining mechanism 20 for combining the outputs of the two. The two electric motors 18 and 19 are connected to the storage battery 15 in series via a controller 31 and a forward / reverse switching switch 32. The output of the output combining mechanism 20 is transmitted to the front wheels 5 via a final reduction gear mechanism 25 attached to the vehicle body 2, a differential gear device 29, and a front wheel axle 26 supported by the vehicle body 2.
【００１１】 両電動機１８、１９は、互いの出力軸１８ｅ、１９ｅが平行になるよう車体２ に取り付けられる。その出力合成機構２０は減速機構を兼用し、一方の電動機１ ８の出力軸１８ｅに取り付けられる第１歯車２１と、他方の電動機１９の出力軸 １９ｅに取り付けられる第１歯車２１と同一歯数の第２歯車２２と、両歯車２１ 、２２に噛み合う第３歯車２３とを有し、その第３歯車２３は第１、第２歯車２ １、２２よりも歯数が多く、第１ベベルギヤ２７の一端に連結されている。Both electric motors 18 and 19 are attached to the vehicle body 2 so that their output shafts 18e and 19e are parallel to each other. The output combining mechanism 20 also serves as a speed reducing mechanism, and has the same number of teeth as the first gear 21 attached to the output shaft 18e of the one electric motor 18 and the first gear 21 attached to the output shaft 19e of the other electric motor 19. It has a second gear 22 and a third gear 23 that meshes with both gears 21 and 22. The third gear 23 has a larger number of teeth than the first and second gears 21 and 22, It is connected to one end.
【００１２】 その終減速ギヤ機構２５は、第３歯車２３の他端に取り付けられる第１ベベル ギヤ２７と、この第１ベベルギヤ２７に噛み合う第２ベベルギヤ２８とを有し、 その第２ベベルギヤ２８は第１ベベルギヤ２７よりも歯数が多く、前記差動歯車 装置２９を介し前記前輪車軸２６に連結されている。The final reduction gear mechanism 25 has a first bevel gear 27 attached to the other end of the third gear 23, and a second bevel gear 28 meshing with the first bevel gear 27, and the second bevel gear 28 is It has more teeth than the first bevel gear 27 and is connected to the front wheel axle 26 via the differential gear device 29.
【００１３】 上記構成によれば、２つの電動機１８、１９は蓄電池１５に直列に接続される ので、両電動機１８、１９の合成出力は各電動機１８、１９個々の出力の２倍に なり、各電動機１８、１９個々の定格は合成出力の１／２の出力に対応するもの で足りる。これにより、小さな負荷は従来と同様に単一の電動機を用いる駆動装 置により駆動し、大きな負荷は本考案の構成の駆動装置１４を用いて駆動するこ とで、負荷が異なっても等しい定格の電動機を用いることができる。例えば、単 一の電動機を駆動源とする従来例で示した駆動装置１００により最大積載荷重１ 〜３トン程度で蓄電池１０１の出力電圧が４８Ｖの小型の蓄電池式フォークリフ トトラックの車輪を駆動し、上記実施例の駆動装置１４により最大積載荷重４ト ン程度以上で蓄電池１５の出力電圧が７２Ｖ〜９６Ｖの大型の蓄電池式フォーク リフトトラックの車輪を駆動する場合に、従来例の駆動装置１００の電動機１０ ２の定格と実施例の駆動装置１４の電動機１８、１９の定格とを等しくできる。 すなわち、最大積載荷重の異なるフォークリフトトラックであっても同一定格の 電動機により走行系駆動装置を構成することができ、異なる設計仕様の電動機を 製造する必要がなく、電動機を量産化してコスト低減を図ることができ、電動機 部品も共通化できる。According to the above configuration, since the two electric motors 18 and 19 are connected in series to the storage battery 15, the combined output of both electric motors 18 and 19 is twice the output of each electric motor 18 and 19, and The motors 18 and 19 need only be rated to correspond to half the combined output. As a result, a small load is driven by a drive device using a single electric motor as in the conventional case, and a large load is driven by the drive device 14 having the configuration of the present invention. The electric motor of can be used. For example, the wheels of a small storage battery type forklift truck whose output voltage of the storage battery 101 is 48 V is driven by the drive device 100 shown in the conventional example using a single electric motor as a drive source, with a maximum load of about 1 to 3 tons. When driving the wheels of a large storage battery type forklift truck whose output voltage of the storage battery 15 is 72V to 96V with a maximum load of about 4 tons or more by the drive device 14 of the above-described embodiment, The rating of the electric motor 102 and the ratings of the electric motors 18 and 19 of the drive device 14 of the embodiment can be made equal. In other words, even forklift trucks with different maximum load capacity can configure the drive system drive device with electric motors of the same rating, there is no need to manufacture electric motors with different design specifications, and mass production of electric motors is aimed at cost reduction. It is also possible to share the motor parts.
【００１４】 なお、本考案は上記実施例に限定されるものではない。例えば、本考案の駆動 装置は、蓄電池式フォークリフトトラックの走行系駆動装置として用いられるも のに限定されず、他の駆動対象を駆動することもできる。The present invention is not limited to the above embodiment. For example, the drive device of the present invention is not limited to being used as a drive system drive device of a storage battery type forklift truck, but can drive other drive targets.
【００１５】[0015]
本考案の蓄電池式駆動装置によれば、負荷に応じ異なる設計仕様の電動機を製 造する必要がなく、電動機を量産化してコスト低減を図ることができ、電動機部 品も共通化できる。 According to the storage battery type drive device of the present invention, it is not necessary to manufacture electric motors having different design specifications depending on loads, mass production of electric motors can be achieved, and cost can be reduced, and electric motor parts can be shared.
【図１】本考案の実施例のフォークリフトトラックの側
面図FIG. 1 is a side view of a forklift truck according to an embodiment of the present invention.
【図２】本考案の実施例のフォークリフトトラックの走
行系駆動装置の構成説明図FIG. 2 is an explanatory diagram of a drive system drive device for a forklift truck according to an embodiment of the present invention.
【図３】従来例のフォークリフトトラックの走行系駆動
装置の構成説明図FIG. 3 is a structural explanatory view of a drive system drive device of a conventional forklift truck.
１５ 蓄電池 １８、１９ 電動機 ２０ 出力合成機構 15 Storage battery 18, 19 Electric motor 20 Output combining mechanism
Claims (1)
る２つの互いに同一定格の電動機と、両電動機の出力を
合成する出力合成機構とを備える蓄電池式駆動装置。1. A storage battery type drive device comprising a storage battery, two electric motors of the same rating connected in series to the storage battery, and an output combining mechanism for combining the outputs of both electric motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP042904U JPH0711807U (en) | 1993-07-09 | 1993-07-09 | Storage battery type drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP042904U JPH0711807U (en) | 1993-07-09 | 1993-07-09 | Storage battery type drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0711807U true JPH0711807U (en) | 1995-02-21 |
Family
ID=12649026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP042904U Pending JPH0711807U (en) | 1993-07-09 | 1993-07-09 | Storage battery type drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0711807U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009035243A (en) * | 2007-07-06 | 2009-02-19 | Komatsu Ltd | Drive device for electric vehicle |
| JP2009119973A (en) * | 2007-11-13 | 2009-06-04 | Komatsu Ltd | Driving device for electric vehicle |
-
1993
- 1993-07-09 JP JP042904U patent/JPH0711807U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009035243A (en) * | 2007-07-06 | 2009-02-19 | Komatsu Ltd | Drive device for electric vehicle |
| JP2009119973A (en) * | 2007-11-13 | 2009-06-04 | Komatsu Ltd | Driving device for electric vehicle |
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| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19981013 |