JP2969577B2 - Drive unit for transport vehicles - Google Patents
Drive unit for transport vehiclesInfo
- Publication number
- JP2969577B2 JP2969577B2 JP21654491A JP21654491A JP2969577B2 JP 2969577 B2 JP2969577 B2 JP 2969577B2 JP 21654491 A JP21654491 A JP 21654491A JP 21654491 A JP21654491 A JP 21654491A JP 2969577 B2 JP2969577 B2 JP 2969577B2
- Authority
- JP
- Japan
- Prior art keywords
- motor
- parent
- traveling
- child
- speed
- 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.)
- Expired - Fee Related
Links
Landscapes
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Arrangement Of Transmissions (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は無人搬送車のような搬
送車の駆動装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving device for a carrier such as an automatic guided vehicle.
【０００２】[0002]
【従来の技術】従来無人搬送車の駆動装置としては図１
に示すものが知られている。上記駆動装置は、駆動輪ａ
を支承するギヤケースｂの上部が軸受けｃを介して車体
ｄに旋回自在に取付けられていて、車体ｄ側に設置され
た走行モータｅによりギヤケースｂ内の減速ギヤ（図示
せず）を介して駆動輪ａが回転駆動されるようになって
いる。なお図中ｆは旋回ギヤ、ｇは電磁ブレーキを示
す。しかし上記駆動装置では通常１ｋｍ／Ｈ〜１０ｋｍ
／Ｈで走行できるように設計されているため、１ｋｍ／
Ｈ以下の微速走行で安定した走行を得ることは困難であ
る。上記欠点を改善するため図２に示すように、走行モ
ータｅと減速機の間に高速用電磁クラッチｈと低速用電
磁クラッチｉを設けて、微速走行時には低速用電磁クラ
ッチｉに切換えることにより、低速ギヤｊで走行モータ
ｅの回転をさらに減速できるようにしたものが提案され
ている。2. Description of the Related Art FIG. 1 shows a conventional driving apparatus for an automatic guided vehicle.
The following are known. The driving device includes a driving wheel a
The upper part of a gear case b that supports the motor is rotatably mounted on a vehicle body d via a bearing c, and is driven by a traveling motor e installed on the vehicle body d side via a reduction gear (not shown) in the gear case b. The wheel a is driven to rotate. In the drawing, f indicates a turning gear, and g indicates an electromagnetic brake. However, in the above driving device, usually 1 km / H to 10 km
/ H because it is designed to run at 1km / H
It is difficult to obtain a stable running at a very low speed running below H. As shown in FIG. 2, a high-speed electromagnetic clutch h and a low-speed electromagnetic clutch i are provided between the traveling motor e and the speed reducer to switch to the low-speed electromagnetic clutch i when traveling at a very low speed. There has been proposed a type in which the rotation of the traveling motor e can be further reduced by the low-speed gear j.
【０００３】[0003]
【発明が解決しようとする課題】しかし上記駆動装置で
非常時電源がオフになると、高速用電磁クラッチｈ及び
低速用電磁クラッチｉの何れもが切れてしまって駆動輪
ａに制動がかからなくなるため、特に無人搬送車の場合
車両が暴走して危険である不具合がある。また微速走行
時も通常走行時使用している大型の走行モータｅを使用
するため、効率が悪いと共に、電磁クラッチｈ，ｉの分
車高が高くなって外観上安定感を欠くなど、デザイン上
も好ましくないなどの不具合があった。この発明は上記
不具合を改善する目的でなされたもので、微速走行時は
小型な子モータにより走行するようにした搬送車の駆動
装置を提供して、安全性や効率の向上などを図ろうとす
るものである。However, when the emergency power supply is turned off by the above-mentioned driving device, both the high-speed electromagnetic clutch h and the low-speed electromagnetic clutch i are disconnected, so that the driving wheel a is not braked. For this reason, particularly in the case of an automatic guided vehicle, there is a problem that the vehicle runs away and is dangerous. In addition, since the large traveling motor e used during normal traveling is used even at low speed traveling, the efficiency is low, and the vehicle height of the electromagnetic clutches h and i increases and the appearance lacks stability. There were also problems such as undesirable. The present invention has been made for the purpose of improving the above-described disadvantages, and provides a drive device for a transport vehicle that travels with a small child motor at a low speed, thereby improving safety and efficiency. Things.
【０００４】[0004]
【課題を解決するための手段】この発明は上記目的を達
成するために、車体に設置された走行モータと、車体の
底部に旋回自在に取付けられた駆動輪の間を減速機を介
して接続した搬送車の駆動装置において、上記走行モー
タを親モータと、これより容量の小さい子モータより構
成し、かつ親モータには通電時解放する電磁ブレーキを
設けると共に、子モータと減速機の間に電磁クラッチを
設けたものである。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention connects a traveling motor installed on a vehicle body and a driving wheel rotatably mounted on the bottom of the vehicle body via a speed reducer. In the driving device for a transport vehicle, the traveling motor is composed of a parent motor and a child motor having a smaller capacity than that of the parent motor, and the parent motor is provided with an electromagnetic brake that is released when energized, and is provided between the child motor and the reduction gear. An electromagnetic clutch is provided.
【０００５】[0005]
【作 用】上記構成により微速走行時には容量の小さ
い子モータを使用するため、安定した走行性能が得られ
ると共に、親モータに設けた電磁ブレーキにより制動で
きることから、安全性も向上する。[Work] With the above configuration, a child motor having a small capacity is used at the time of low-speed traveling, so that stable traveling performance can be obtained, and safety can be improved because braking can be performed by an electromagnetic brake provided in the parent motor.
【０００６】[0006]
【実 施 例】この発明の一実施例を図３及び図４に示
す図面を参照して詳述する。これら図において１は搬送
車の車体で、親モータ２ａ及び子モータ２ｂよりなる２
基の走行モータ２がベベルギヤボックス３を挟んで対向
するように搭載されている。上記走行モータ２の親モー
タ２ａは子モータ２ｂより大型のモータが使用されてい
て、後部に電磁ブレーキ４が取付けられていると共に、
親モータ２ａの回転軸２ｃにベベルギヤボックス３内の
ベベルピニオン３ａが取付けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail with reference to the drawings shown in FIGS. In these figures, reference numeral 1 denotes a vehicle body of a transport vehicle,
The base traveling motor 2 is mounted so as to face the bevel gear box 3. As the parent motor 2a of the traveling motor 2, a motor larger than the child motor 2b is used, and the electromagnetic brake 4 is attached to the rear part,
The bevel pinion 3a in the bevel gear box 3 is attached to the rotating shaft 2c of the parent motor 2a.
【０００７】また親モータ２ａより容量の小さい子モー
タ２ｂの回転軸２ｄには、電磁クラッチ５を介してベベ
ルギヤボックス３内のベベルピニオン３ｂが取付けられ
ていると共に、これらベベルピニオン３ａ，３ｂは駆動
軸３ｃの上端に固着されたベベルギヤ３ｄにそれぞれ噛
合されていて、親モータ２ａ及び子モータ２ｂで駆動軸
３ｃが駆動できるようになっている。A bevel pinion 3b in a bevel gear box 3 is mounted on a rotating shaft 2d of a child motor 2b having a smaller capacity than the parent motor 2a via an electromagnetic clutch 5, and these bevel pinions 3a and 3b are driven. The drive shaft 3c is meshed with a bevel gear 3d fixed to the upper end of the shaft 3c, and can be driven by the master motor 2a and the slave motor 2b.
【０００８】一方上記ベベルギヤボックス３下方の車体
１下面には、軸受け６を介して減速機７のギヤケース７
ａが旋回自在に取付けられている。上記ギヤケース７ａ
の下部には駆動輪８が車軸９により回転自在に支承され
ていると共に、上記駆動軸３ｃと車軸９の間はギヤケー
ス７ａ内に収容された図示しない減速ギヤにより接続さ
れている。On the other hand, a gear case 7 of a speed reducer 7 is mounted on a lower surface of the vehicle body 1 below the bevel gear box 3 via a bearing 6.
a is pivotally mounted. The gear case 7a
A drive wheel 8 is rotatably supported by an axle 9 at the lower part of the vehicle, and the drive shaft 3c and the axle 9 are connected by a reduction gear (not shown) housed in a gear case 7a.
【０００９】次に作用を説明すると、車体１を高速で走
行させる場合は、子モータ２ｂ及び電磁クラッチ５を非
通電にし、親モータ２ａに通電して、親モータ２ａによ
り駆動輪８を駆動して走行する。また車体１を制動する
電磁ブレーキ４は通電時解放する方式を採用しているた
め、走行時は通電し、制動時は非通電にして駆動輪８を
制動する。[0009] Next In operation, when traveling the vehicle body 1 at high speed, the slave motor 2b and the electromagnetic clutch 5 Non
The main motor 2a is energized and the driving wheels 8 are driven by the main motor 2a to travel. Further, since the electromagnetic brake 4 for braking the vehicle 1 adopts the method of release when energized, during running is energized during braking to brake the driving wheels 8 and de-energized.
【００１０】また車体１を微速走行させるときには、子
モータ２ｂと電磁クラッチ５及び電磁ブレーキ４に通電
し、親モータ２ａのみ非通電にして、子モータ２ｂで駆
動輪８を駆動する。子モータ２ｂは親モータ２ａに比べ
て容量が小さいので、容易に１ｋｍ／Ｈ以下の微速が得
られると共に、制動は親モータ２ａに設けられた電磁ブ
レーキ４を使用する。すなわち子モータ２ｂによる走行
時も駆動軸３ｃと親モータ２ａは、ベベルピニオン３ａ
及びベベルギヤ３ｄを介して直結状態にあるので、親モ
ータ２ａの非通電時でも、親モータ２ａの電磁ブレーキ
４を使用して駆動輪８の制動が可能になる。[0010] In addition to the time to be a very slow speed running of the vehicle body 1, child
Power is supplied to the motor 2b, the electromagnetic clutch 5 and the electromagnetic brake 4.
Then, only the parent motor 2a is de-energized, and the driving wheels 8 are driven by the child motor 2b. Since the capacity of the child motor 2b is smaller than that of the parent motor 2a, a fine speed of 1 km / H or less can be easily obtained, and the electromagnetic brake 4 provided on the parent motor 2a is used for braking. That is, even when traveling by the child motor 2b, the drive shaft 3c and the parent motor 2a are connected to the bevel pinion 3a.
And because it is in direct connection with each other through the bevel gear 3d, parent mode
Even when the motor 2a is not energized, the drive wheels 8 can be braked using the electromagnetic brake 4 of the parent motor 2a.
【００１１】一方車体１を停止したり、非常時自動的に
電源がオフになると、親モータ２ａや子モータ２ｂ、電
磁ブレーキ４、電磁クラッチ５に通電されなくなるが、
電磁ブレーキ４に非通電時制動する方式を採用している
ため、車体１を安全に停止することができる。On the other hand, when the vehicle body 1 is stopped or the power supply is automatically turned off in an emergency, power is not supplied to the parent motor 2a, the child motor 2b, the electromagnetic brake 4, and the electromagnetic clutch 5.
Since the method of braking the electromagnetic brake 4 when power is not applied is adopted, the vehicle body 1 can be safely stopped.
【００１２】[0012]
【発明の効果】この発明は以上詳述したように走行モー
タを親モータと子モータより構成し、微速走行時には子
モータで走行するようにしたことから、微速走行時にも
安定した速度が得られると共に、大型の走行モータで走
行するものに比べて効率がよいため経済的である。また
微速走行時の制動に親モータの電磁ブレーキが使用でき
るため、子モータに電磁ブレーキを設ける必要がないと
共に、非常時には電磁ブレーキにより車体を制動するこ
とができるため、車体が暴走することもなく安全であ
る。また走行モータを横置にすることにより車高を低く
できるため、車体の安定性が増すと共に、外観の向上も
図れるようになる。According to the present invention, as described in detail above, the traveling motor is composed of the parent motor and the child motor, and the vehicle is driven by the child motor at the time of low-speed traveling, so that a stable speed can be obtained even at the time of low-speed traveling. In addition, it is economical because it is more efficient than one that travels with a large traveling motor. In addition, since the electromagnetic brake of the parent motor can be used for braking at low speeds, there is no need to provide an electromagnetic brake for the child motor, and in the case of emergency, the vehicle body can be braked by the electromagnetic brake, so that the vehicle does not run away It is safe. In addition, since the vehicle height can be reduced by placing the traveling motor horizontally, the stability of the vehicle body is increased and the appearance can be improved.
【図１】従来の駆動装置を示す説明図である。FIG. 1 is an explanatory diagram showing a conventional driving device.
【図２】従来の駆動装置を示す説明図である。FIG. 2 is an explanatory diagram showing a conventional driving device.
【図３】この発明の一実施例になる駆動装置の一部切欠
平面図である。FIG. 3 is a partially cutaway plan view of a driving device according to an embodiment of the present invention.
【図４】同駆動装置の一部切欠正面図である。FIG. 4 is a partially cutaway front view of the driving device.
１ 車体、２ 走行モータ、２ａ 親モータ、２ｂ 子
モータ、３ ベベルギヤボックス、４ 電磁ブレーキ、
５ 電磁クラッチ、７ 減速機、８ 駆動輪。1 body, 2 running motor, 2a parent motor, 2b child motor, 3 bevel gear box, 4 electromagnetic brake,
5 electromagnetic clutch, 7 reduction gear, 8 drive wheels.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) B60K 1/00 - 1/04 B60K 7/00 B60K 17/04 H02K 7/114 H02K 49/00 ──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. 6 , DB name) B60K 1/00-1/04 B60K 7/00 B60K 17/04 H02K 7/114 H02K 49/00
Claims (2)
体１の底部に旋回自在に取付けられた駆動輪８の間を減
速機７を介して接続した搬送車の駆動装置において、上
記走行モータ２を親モータ２ａと、これより容量の小さ
い子モータ２ｂより構成し、かつ親モータ２ａには通電
時解放する電磁ブレーキ４を設けると共に、子モータ２
ｂと減速機７の間に電磁クラッチ５を設けてなる搬送車
の駆動装置。1. A driving device for a transport vehicle in which a traveling motor 2 installed on a vehicle body 1 and a driving wheel 8 rotatably mounted on the bottom of the vehicle body 1 are connected via a reduction gear 7, The motor 2 includes a parent motor 2a and a child motor 2b having a smaller capacity than the parent motor 2a.
When the electromagnetic brake 4 is released,
b. A drive device for a transport vehicle, comprising an electromagnetic clutch 5 provided between the motor b and the speed reducer 7.
２ｂを横置にし、かつベベルギヤボックス３を挟んで対
向するように配置してなる請求項１記載の駆動装置。2. The drive device according to claim 1, wherein the parent motor 2a and the child motor 2b of the traveling motor 2 are arranged side by side, and are arranged to face each other with the bevel gear box 3 interposed therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21654491A JP2969577B2 (en) | 1991-08-02 | 1991-08-02 | Drive unit for transport vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21654491A JP2969577B2 (en) | 1991-08-02 | 1991-08-02 | Drive unit for transport vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0538948A JPH0538948A (en) | 1993-02-19 |
| JP2969577B2 true JP2969577B2 (en) | 1999-11-02 |
Family
ID=16690102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21654491A Expired - Fee Related JP2969577B2 (en) | 1991-08-02 | 1991-08-02 | Drive unit for transport vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2969577B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8353854B2 (en) | 2007-02-14 | 2013-01-15 | Tibion Corporation | Method and devices for moving a body joint |
| US20090306548A1 (en) | 2008-06-05 | 2009-12-10 | Bhugra Kern S | Therapeutic method and device for rehabilitation |
| US8058823B2 (en) * | 2008-08-14 | 2011-11-15 | Tibion Corporation | Actuator system with a multi-motor assembly for extending and flexing a joint |
| US8639455B2 (en) | 2009-02-09 | 2014-01-28 | Alterg, Inc. | Foot pad device and method of obtaining weight data |
| WO2014151584A1 (en) | 2013-03-15 | 2014-09-25 | Alterg, Inc. | Orthotic device drive system and method |
-
1991
- 1991-08-02 JP JP21654491A patent/JP2969577B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0538948A (en) | 1993-02-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |