JPH05131923A - Power transmission mechanism in in-tube running vehicle - Google Patents
Power transmission mechanism in in-tube running vehicleInfo
- Publication number
- JPH05131923A JPH05131923A JP3295813A JP29581391A JPH05131923A JP H05131923 A JPH05131923 A JP H05131923A JP 3295813 A JP3295813 A JP 3295813A JP 29581391 A JP29581391 A JP 29581391A JP H05131923 A JPH05131923 A JP H05131923A
- Authority
- JP
- Japan
- Prior art keywords
- gear
- differential
- ratchet
- drive
- drive motor
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ガス導管、水道管、そ
の他の管内を各種測定、検査機器等を搭載したり、牽引
しながら走行する管内走行車に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe running vehicle in which gas pipes, water pipes, and other pipes are equipped with various measuring and inspecting equipments and towed while traveling.
【０００２】[0002]
【従来の技術】管路内に各種の測定機器類を挿入する際
に使用されるモータ駆動方式の走行車において、モータ
の回転をウォームギャーを経由して駆動軸に伝達する方
式のもの（特願昭６２−１９２６４５）と、ウォームギ
ャーと駆動軸間にクラッチ機構を組み込んで回転を切り
離すことができるように構成したものが公知である。2. Description of the Related Art A motor drive type traveling vehicle used for inserting various measuring instruments into a pipeline is of a type in which the rotation of a motor is transmitted to a drive shaft via a worm gear. Japanese Patent Application No. 62-192645) and a structure in which a clutch mechanism is incorporated between a worm gear and a drive shaft so that rotation can be separated are known.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記方式にお
いて、前者のウォームギャーを用いて直接動力を伝達す
る方式は電気系統、駆動モータ或いは動力伝達機構に故
障が発生し、走行車を回収する必要が発生した場合に、
ウォームギャーの特性から理解できるように駆動輪は逆
回転できないため、回収に手間取ったり、回収不能にな
ることもある。一方、後者のクラッチを組み込んだ方式
は、前記のような問題はない代わりに、この種走行車は
低速回転、大トルクを採用しているため、クラッチ機構
が大型化して、小口径管用には適用できないという問題
がある。However, in the above method, the former method of directly transmitting power by using the warm gear causes a failure in the electric system, the drive motor or the power transmission mechanism, and the traveling vehicle must be recovered. When occurs,
As you can understand from the characteristics of the warm gear, the drive wheels cannot rotate in the opposite direction, so it may take some time to collect them or it may become impossible to collect them. On the other hand, the latter method that incorporates the clutch does not have the problems described above, but this type of vehicle uses low speed rotation and large torque, so the clutch mechanism becomes large and it is not suitable for small diameter pipes. There is a problem that it cannot be applied.
【０００４】本発明の目的は、駆動機構が故障した場合
でも簡単に回収することができると共に、小型化を図っ
て小口径管用にも適用できる管内走行車を提供すること
である。An object of the present invention is to provide an in-pipe traveling vehicle which can be easily recovered even when a drive mechanism fails and which can be downsized and applied to a small-diameter pipe.
【０００５】[0005]
【課題を解決するための手段】本発明は、上記目的を達
成するために、次の如き管内走行車における動力伝達機
構を提案する。In order to achieve the above object, the present invention proposes the following power transmission mechanism for a traveling vehicle in a pipe.
【０００６】駆動モータの回転をウォームギャーを介し
て駆動輪に伝達する方式の管内走行車において、ウォー
ムホイル内に中心方向に向けて差動小歯車を取り付け、
この差動小歯車に噛合する差効大歯車を駆動軸に固定
し、この差動大歯車に対向せしめて前記差動小歯車に噛
合しているフリー回転のラチェット歯車付制御歯車を設
けると共に駆動モータＯＮに連動して前記ラチェット歯
車に係合し、駆動モータＯＦＦに連動して係合を解除す
るラチェット爪を設けた構成の管内走行車における動力
伝達機構。In a pipe traveling vehicle of the type in which the rotation of the drive motor is transmitted to the drive wheels via a worm gear, a differential pinion gear is installed in the worm wheel toward the center,
A differential effect large gear that meshes with the differential small gear is fixed to a drive shaft, and a free-rotating ratchet gear-equipped control gear that meshes with the differential small gear and faces the differential large gear is provided and driven. A power transmission mechanism for a traveling vehicle in a pipe having a ratchet pawl that engages with the ratchet gear in association with turning on the motor and releases engagement in association with turning off the drive motor.
【０００７】[0007]
【作用】走行車を管路内に進入させるために、駆動モー
タの電源をＯＮにすると、ラチェット爪が連動してラチ
ェット歯車に係合する。この結果、駆動モータの回転は
ウォームギャー→ウォームホイルと伝達される。ウォー
ムホイルが回転すると、一緒に差動小歯車が回転する。
この際、差動小歯車は差動大歯車と制御歯車の双方に噛
合しており、制御歯車側がラチェット爪の係合によりロ
ックされているため、差動大歯車側を回転する。差動大
歯車は駆動軸（出力軸）に固定されているため、この駆
動軸を回転し、この駆動軸は駆動輪を回転する。この結
果、走行車は管内に進入して行く。When the power source of the drive motor is turned on in order to allow the traveling vehicle to enter the pipeline, the ratchet pawls are interlocked and engage with the ratchet gear. As a result, the rotation of the drive motor is transmitted from the warm gear to the warm wheel. When the worm wheel rotates, the differential pinion also rotates with it.
At this time, since the small differential gear meshes with both the large differential gear and the control gear and the control gear side is locked by the engagement of the ratchet pawls, the differential large gear rotates. Since the differential large gear is fixed to the drive shaft (output shaft), it rotates this drive shaft, and this drive shaft rotates the drive wheels. As a result, the traveling vehicle enters the pipe.
【０００８】一方、管内から走行車を回収する場合に
は、駆動モータの電源をＯＦＦにする。このようにする
とラチェット爪がラチェット歯車から離れてロックを解
除するため、駆動輪の回転は駆動軸を経由して差動大歯
車に伝達されるが、ウォームホイル側に固定された差動
小歯車は制御歯車が前記ラチェット爪の解除によりフリ
ーの状態にあるため、差動大歯車の自由回転を許容す
る。この結果、駆動輪に制動がかからないため、走行車
をワイヤー等で牽引するだけで、容易に管外に回収でき
る。On the other hand, when the traveling vehicle is collected from the inside of the pipe, the drive motor is turned off. In this way, the ratchet pawl separates from the ratchet gear and unlocks it, so that the rotation of the drive wheel is transmitted to the differential large gear via the drive shaft, but the differential small gear fixed to the worm wheel side. Allows the free rotation of the differential gear because the control gear is free due to the release of the ratchet pawl. As a result, since the drive wheels are not braked, the traveling vehicle can be easily collected outside the pipe by pulling the traveling vehicle with a wire or the like.
【０００９】[0009]
【実施例】図１において、１は走行車本体、２は駆動
輪、３は駆動軸、４は駆動モータ（図示せず）からの回
転を受けて回転するウォームギャー、５はウォームホイ
ルにして、このウォールホイル５内には図２に示すよう
に２枚の差動小歯車６、６′が中心方向に向けて取り付
けられている。７は前記駆動軸３に固定され、かつ差動
小歯車６、６′に噛合している差動大歯車、８は差動大
歯車７に対向し、差動小歯車６、６′に噛合してフリー
回転する制御歯車、９は制御歯車８に固定されたラチェ
ット歯車、１０はラチェット歯車９をロック及びロック
解除するラチェット爪にして、駆動モータの電源のＯＮ
に連動してラチェット歯車９に係合し、ＯＦＦに連動し
て係合を解除する構成である。１１は管を示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, 1 is a traveling vehicle main body, 2 is drive wheels, 3 is a drive shaft, 4 is a worm gear which is rotated by a rotation from a drive motor (not shown), and 5 is a worm wheel. As shown in FIG. 2, two differential pinion gears 6 and 6'are mounted in the wall wheel 5 toward the center. Reference numeral 7 is a differential large gear that is fixed to the drive shaft 3 and meshes with the differential small gears 6 and 6 ', and 8 is opposed to the differential large gear 7 and meshes with the differential small gears 6 and 6'. And the control gear that freely rotates, 9 is a ratchet gear fixed to the control gear 8, and 10 is a ratchet pawl that locks and unlocks the ratchet gear 9 to turn on the power of the drive motor.
Is engaged with the ratchet gear 9 in conjunction with and the engagement is released in conjunction with being turned off. 11 indicates a tube.
【００１０】走行車を管路内に進入させるために駆動モ
ータの電源をＯＮにすると、ラチェット爪１０が連動し
て制御歯車８のラチェット歯車９に係合する。この結
果、駆動モータの回転はウォームギャー４→ウォームホ
イル５と伝達される。ウォームホイル５が回転すると、
一緒に差動小歯車６、６′が回転する。この際、差動小
歯車６、６′は差動大歯車７と制御歯車８の双方に噛合
しており、制御歯車８側がラチェット爪１０の係合によ
りロックされているため、差動大歯車７側を回転する。
差動大歯車７は駆動軸３（出力軸）に固定されているた
め、この駆動軸３を回転し、この駆動軸３は駆動輪２を
回転する。この結果、走行車は管１１内に進入して行
く。When the power source of the drive motor is turned on in order to bring the traveling vehicle into the pipeline, the ratchet pawl 10 is interlocked with the ratchet gear 9 of the control gear 8. As a result, the rotation of the drive motor is transmitted from the worm gear 4 to the worm wheel 5. When the worm wheel 5 rotates,
The differential small gears 6, 6'rotate together. At this time, the small differential gears 6 and 6 ′ mesh with both the large differential gear 7 and the control gear 8, and the control gear 8 side is locked by the engagement of the ratchet pawls 10. Rotate 7 side.
Since the large differential gear 7 is fixed to the drive shaft 3 (output shaft), the drive shaft 3 rotates, and the drive shaft 3 rotates the drive wheels 2. As a result, the traveling vehicle enters the pipe 11.
【００１１】一方、管１１内から走行車を回収する場合
には、駆動モータの電源をＯＦＦにする。このようにす
るとラチェット爪１０がラチェット歯車９から離れてロ
ックを解除するため、駆動輪２の回転は駆動軸３を経由
して差動大歯車７に伝達されるが、ウォームホイル５側
に固定された差動小歯車６、６′は制御歯車８が前記ラ
チェット爪１０の解除によりフリーの状態にあるため、
差動大歯車７の自由回転を許容する。この結果、駆動輪
２に制動がかからないため、走行車をワイヤー等で牽引
するだけで、容易に管１１外に回収できる。On the other hand, when the traveling vehicle is collected from the pipe 11, the drive motor is turned off. In this way, the ratchet pawl 10 separates from the ratchet gear 9 and unlocks, so that the rotation of the drive wheel 2 is transmitted to the differential gear 7 via the drive shaft 3, but is fixed to the worm wheel 5 side. Since the control gear 8 is in a free state due to the release of the ratchet pawl 10, the differential small gears 6 and 6 ′ are
The free rotation of the differential gear 7 is allowed. As a result, since the drive wheels 2 are not braked, they can be easily collected outside the pipe 11 simply by pulling the traveling vehicle with a wire or the like.
【００１２】なお、自走車を回収するためには、回収用
のワイヤーを取り付けておいてもよいが、検査機器類の
信号線、電力線を用いてもよい。In order to collect the self-propelled vehicle, a wire for collection may be attached, but a signal line or a power line of inspection equipment may be used.
【００１３】[0013]
【発明の効果】ａ．走行車の電気系統、駆動系等が故障
して回収する際、駆動モータの電源をＯＦＦにすると、
これに連動して駆動輪がフリーになるので、走行車或い
は測定・検査機器をそのまま引っ張るだけで容易に管外
に回収できる。Effects of the Invention a. When the electric system of the traveling vehicle, the drive system, etc. fails and is recovered, if the power of the drive motor is turned off,
Since the drive wheels become free in conjunction with this, it can be easily collected outside the pipe by simply pulling the traveling vehicle or the measurement / inspection equipment.
【００１４】ｂ．駆動輪をフリーにするためのクラッチ
機構を組み込まないので、車体の大きさを可及的に小型
化することができ、よって小口径管用の走行車に適用し
た場合に効果が大きい。B. Since the clutch mechanism for making the drive wheels free is not incorporated, the size of the vehicle body can be reduced as much as possible, and thus the effect is great when applied to a traveling vehicle for small diameter pipes.
【図１】本発明に係る走行車の駆動部分の説明図。FIG. 1 is an explanatory view of a driving portion of a traveling vehicle according to the present invention.
【図２】ウォールホイル部分の説明図。FIG. 2 is an explanatory view of a wall wheel portion.
１ 走行車本体 ２ 駆動輪 ３ 駆動軸 ４ ウォームギャー ５ ウォームホイル ６、６′差動小歯車 ７ 差動大歯車 ８ 制御歯車 ９ ラチェット歯車 １０ ラチェット爪 １１ 管 1 traveling vehicle main body 2 drive wheel 3 drive shaft 4 worm gear 5 worm wheel 6, 6'differential small gear 7 differential large gear 8 control gear 9 ratchet gear 10 ratchet pawl 11 tube
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｇ０１Ｎ 29/04 Ｍ 8105−2Ｊ // Ｆ１６Ｌ 55/00 Ｚ 9137−3Ｊ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification number Office reference number FI technical display location G01N 29/04 M 8105-2J // F16L 55/00 Z 9137-3J
Claims (1)
して駆動輪に伝達する方式の管内走行車において、ウォ
ームホイル内に中心方向に向けて差動小歯車を取り付
け、この差動小歯車に噛合する差効大歯車を駆動軸に固
定し、この差動大歯車に対向せしめて前記差動小歯車に
噛合しているフリー回転のラチェット歯車付制御歯車を
設けると共に駆動モータＯＮに連動して前記ラチェット
歯車に係合し、駆動モータＯＦＦに連動して係合を解除
するラチェット爪を設けた構成の管内走行車における動
力伝達機構。1. In a pipe traveling vehicle of the type in which the rotation of a drive motor is transmitted to a drive wheel via a worm gear, a differential pinion gear is mounted in a worm wheel toward the center and meshes with the differential pinion gear. The differential large gear is fixed to the drive shaft, and a free-rotating ratchet gear-equipped control gear that is opposed to the differential large gear and meshes with the differential small gear is provided. A power transmission mechanism in a pipe running vehicle having a ratchet pawl that engages with a ratchet gear and releases engagement when the drive motor is turned off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3295813A JP2959893B2 (en) | 1991-11-12 | 1991-11-12 | Power transmission mechanism for pipe running vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3295813A JP2959893B2 (en) | 1991-11-12 | 1991-11-12 | Power transmission mechanism for pipe running vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05131923A true JPH05131923A (en) | 1993-05-28 |
| JP2959893B2 JP2959893B2 (en) | 1999-10-06 |
Family
ID=17825500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3295813A Expired - Fee Related JP2959893B2 (en) | 1991-11-12 | 1991-11-12 | Power transmission mechanism for pipe running vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2959893B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705469A (en) * | 2011-03-28 | 2012-10-03 | 上海汽车集团股份有限公司 | Driver |
| CN103196005A (en) * | 2013-04-07 | 2013-07-10 | 南京理工大学 | Pipe exploration robot based on real-time image transmission system |
-
1991
- 1991-11-12 JP JP3295813A patent/JP2959893B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705469A (en) * | 2011-03-28 | 2012-10-03 | 上海汽车集团股份有限公司 | Driver |
| CN103196005A (en) * | 2013-04-07 | 2013-07-10 | 南京理工大学 | Pipe exploration robot based on real-time image transmission system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2959893B2 (en) | 1999-10-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |