JP4841584B2 - Hoisting traction machine with built-in load-sensitive automatic transmission - Google Patents

Hoisting traction machine with built-in load-sensitive automatic transmission Download PDF

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JP4841584B2
JP4841584B2 JP2008082730A JP2008082730A JP4841584B2 JP 4841584 B2 JP4841584 B2 JP 4841584B2 JP 2008082730 A JP2008082730 A JP 2008082730A JP 2008082730 A JP2008082730 A JP 2008082730A JP 4841584 B2 JP4841584 B2 JP 4841584B2
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magnetic body
load
hoisting
magnet
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JP2009236209A (en
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道雄 深沢
貴幸 河西
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Kito Corp
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Description

本発明は、ハンドホイールと駆動部材間の駆動力伝達装置に自動変速機を内蔵した巻上牽引機に関するもので、詳しくは、無負荷時と低荷重時に高速早送り動作を行う負荷感応型自動変速機を内蔵した巻上牽引機に関する。   The present invention relates to a hoisting tractor having a built-in automatic transmission in a driving force transmission device between a handwheel and a driving member, and more particularly, a load-sensitive automatic transmission that performs high-speed rapid feed operation at no load and low load. The present invention relates to a hoisting tractor with a built-in machine.

巻上牽引機は、ロードチェーンの吊下げる最大荷重および作業者がハンドチェーンに加えることができる最大手引き力に基づき、減速比が決定されており、無負荷時にハンドチェーンを引いても、上記の減速比でロードチェーンが作動するため、極めて作業効率が悪いという課題を有していた。   The hoisting tractor has a reduction ratio determined based on the maximum load that the load chain can suspend and the maximum pulling force that an operator can apply to the hand chain. Since the load chain operates at a reduction ratio, there is a problem that work efficiency is extremely poor.

この課題を解決するため、巻上牽引機のハンドチェーン(入力側)とロードチェーン(出力側)の間に変速装置を内蔵し、無負荷時にロードチェーンの巻取り速度を高速にするようにした巻上牽引機が開発されている。   To solve this problem, a gearbox was built in between the hand chain (input side) and the load chain (output side) of the hoisting tractor to increase the winding speed of the load chain at no load. A hoisting tractor has been developed.

上記変速装置を内蔵した巻上牽引機は、ハンドホイールからの回転トルクを1対1の回転比で駆動軸に伝達する第1クラッチ手段と、巻取り速度を高速とする増速変速装置に伝達する第2クラッチ手段と、前記、第1クラッチ手段と、第2クラッチ手段とを係脱するための伝達プレートとを備え、ロードシーブに負荷が掛かる場合にハンドホイールを回転すると、第1クラッチ手段が係合し、第2クラッチ手段を解放する方向に前記伝達プレートが移動し、巻取り速度を高速から低速に切り替え、無負荷時には第2クラッチが係合し、巻取り速度を高速にする自動変速装置を備えたものである。〔特許文献1〕
上記した特許文献1に記載された巻上牽引機の自動変速装置は、ハンドホイールからの回転トルクを1対1の回転比で駆動軸に伝達する第1クラッチ手段と、増速変速装置に伝達する第2クラッチ手段と、第1、第2クラッチ手段の切換えを行う伝達プレートを備え、切換え時には伝達プレートをスライドさせ、機械的にクラッチ手段を切換えるようにしたものである。
特開2001-146391号公報
The hoisting tractor with the built-in transmission is transmitted to the first clutch means for transmitting the rotational torque from the handwheel to the drive shaft at a 1: 1 rotation ratio, and to the speed increasing transmission for increasing the winding speed. Second clutch means, a transmission plate for engaging and disengaging the first clutch means and the second clutch means, and when the handwheel is rotated when a load is applied to the load sheave, the first clutch means Is engaged, the transmission plate moves in the direction to release the second clutch means, the winding speed is switched from high speed to low speed, and when no load is applied, the second clutch is engaged to automatically increase the winding speed. A transmission is provided. [Patent Document 1]
The automatic transmission of the hoisting traction machine described in Patent Document 1 described above transmits the rotational torque from the handwheel to the drive shaft at a one-to-one rotation ratio and the transmission to the speed increasing transmission. And a transmission plate for switching between the first and second clutch means, and at the time of switching, the transmission plate is slid to mechanically switch the clutch means.
JP 2001-146391 A

上記特許文献1に記載された巻上牽引機の自動変速機は、2つのクラッチ機構を備え、無負荷時には高速巻上げを可能にするものであるが、伝達プレートを機械的にスライドさせる接触式の切替え方式であるため、切替え時の内部抵抗が大きく、操作性が悪いという課題を有していた。   The automatic transmission of the hoisting tractor described in Patent Document 1 includes two clutch mechanisms and enables high-speed hoisting when there is no load, but is a contact type that mechanically slides the transmission plate. Because of the switching method, there was a problem that internal resistance during switching was large and operability was poor.

本発明は上記課題を解決するもので、巻上牽引機に磁気変速装置を内蔵するとともに、磁気変速装置の機軸をロードチェーン及びハンドホイールの駆動軸と同一軸線上に配置し、また、磁気変速装置の軸受け構造を巻上牽引機本体に固設される外周フレームと、ハンドホイールを固定する入力管と変速装置の出力を巻上牽引機の駆動部材に伝達する出力管の三層構造とすることで、変速装置の内部抵抗を減少し、操作性を改善するとともに、作業者が荷重の状態が変化する度に煩雑な変速操作を行う必要が無く、また、定格以上の荷重を巻上げようとした場合には、過負荷保護機能による安全操作が可能で、かつ、ハンドホイールとロードチェーンのオフセット量を小さくして、巻上牽引機本体のバランスを改善し、操作時の振れを抑制できる小型・軽量化が可能な負荷感応型自動変速機を内蔵した巻上牽引機を提供することを目的とする。   SUMMARY OF THE INVENTION The present invention solves the above-described problem, and includes a magnetic transmission device built in the hoisting traction machine, the axis of the magnetic transmission device is disposed on the same axis as the drive shaft of the load chain and the handwheel, and the magnetic transmission The bearing structure of the device is a three-layer structure of an outer peripheral frame fixed to the hoisting tractor body, an input pipe for fixing the handwheel, and an output pipe for transmitting the output of the transmission to the driving member of the hoisting traction machine. This reduces the internal resistance of the transmission, improves operability, eliminates the need for the operator to perform complicated shifting operations each time the load changes, and attempts to increase the load above the rating. In this case, safe operation with overload protection function is possible, and the offset of the handwheel and load chain can be reduced to improve the balance of the hoisting and pulling machine body and to suppress vibration during operation. And to provide a hoisting traction machine with a built-in size and weight reduction can load sensitive automatic transmission.

本発明は上記課題を解決するため、巻上牽引機のハンドホイールと駆動部材間に負荷感応型自動変速装置を内蔵した巻上牽引機であって、ハンドホイールに連結された入力管の端面に設けられた外側磁性体と、入力管の回転を増速装置を介して高速回転し、入力管の回転中心上に軸芯を有する出力軸に固設された内側磁性体と、前記外側磁性体と内側磁性体の中間に、磁性***置切り替え手段により、出力軸の軸線方向に移動可能な出力管の一端に設けられ、前記外側磁性体と内側磁性体とのいずれか一方の歯部と噛合可能な外側及び内側歯部を有し、高速及び低速回転の切り替えを行う中間磁性体と、出力管の駆動を駆動力伝達手段を介して巻上牽引機の駆動部材に伝達する出力伝達手段を備え、負荷トルクにより中間磁性体を内側磁性体または外側磁性体に対向させ、駆動部材の回転を高速または低速回転に切り替えることを特徴とする。   In order to solve the above-mentioned problem, the present invention is a hoisting tractor incorporating a load-sensitive automatic transmission between a handwheel and a drive member of the hoisting tractor, and is provided on an end face of an input pipe connected to the handwheel. An outer magnetic body provided; an inner magnetic body fixed to an output shaft having an axial center on the rotation center of the input pipe; and an outer magnetic body that rotates the input pipe at a high speed via a speed increasing device. Between the outer magnetic body and the inner magnetic body and at one end of the output tube movable in the axial direction of the output shaft by the magnetic body position switching means. An intermediate magnetic body having outer and inner teeth capable of switching between high speed and low speed rotation, and an output transmission means for transmitting the drive of the output pipe to the drive member of the hoisting traction machine via the drive force transmission means. Equipped with an intermediate magnetic body by load torque Others to face the outer magnetic, and switches the rotation of the driving member at a high speed or low speed.

また、前記入力管を巻上牽引機に固設された外周フレームの内周に回転自在に軸支し、出力伝達手段を入力管の内周に回転自在に軸支し、入力管及び出力伝達手段の回転中心を巻上牽引機の駆動軸と同一軸線上に設けたことを特徴とする。   Further, the input pipe is rotatably supported on the inner periphery of an outer peripheral frame fixed to the hoisting and pulling machine, and the output transmission means is rotatably supported on the inner periphery of the input pipe, so that the input pipe and the output transmission are supported. The center of rotation of the means is provided on the same axis as the drive shaft of the hoisting machine.

また、前記増速装置は、入力管の端部に設けたプラネタリーキャリアに軸着された遊星歯車と、外周フレームの端部に設けたアウターギヤ支持フレームの開口部内面に設けられ、前記遊星歯車が内接噛合するアウターギヤと、太陽ギヤ軸の端部に設けられ、前記遊星歯車と内接噛合する太陽ギヤであることを特徴とする。   The speed increasing device is provided on an inner surface of an opening of a planetary gear mounted on a planetary carrier provided on an end of an input pipe and an outer gear support frame provided on an end of an outer peripheral frame. An outer gear in which the gear is inscribed in mesh and a sun gear provided in the end of the sun gear shaft and in mesh with the planetary gear.

また、前記磁気位置切り替え手段は、出力管の他端に設けられた中間円板に固設された位置切り替え磁石と、出力伝達手段に固設され、前記位置切り替え磁石に対向する一対の出力管移動磁石と、出力管移動磁石の両側に設けられた出力管戻し磁石であり、一定以上のトルクが出力伝達手段と中間円板間に加わると、両部材伝達手段の相対位置が移動し、磁石の反発により中間円板を軸方向にスライドさせ、トルクが低下すると原位置に復帰するように中間円板と出力伝達手段を磁気的に結合したことを特徴とする。   The magnetic position switching means includes a position switching magnet fixed to an intermediate disk provided at the other end of the output pipe, and a pair of output pipes fixed to the output transmission means and facing the position switching magnet. A moving magnet and an output tube return magnet provided on both sides of the output tube moving magnet. When a torque above a certain level is applied between the output transmission means and the intermediate disk, the relative position of both member transmission means moves, and the magnet The intermediate disk is slid in the axial direction by the repulsion, and the intermediate disk and the output transmission means are magnetically coupled so that they return to their original positions when the torque decreases.

また、前記駆動力伝達手段は、低トルク時に出力管と出力伝達手段を磁気的に連結する磁石と、高トルク時に出力管と出力伝達手段を機械的に連結する高トルク伝達部材であることを特徴とする。   The driving force transmission means is a magnet that magnetically connects the output pipe and the output transmission means at low torque, and a high torque transmission member that mechanically connects the output pipe and the output transmission means at high torque. Features.

また、前記中間磁性体の外側及び内側歯部間に磁性体連結用磁石を設けたことを特徴とする。   In addition, a magnet for connecting a magnetic material is provided between the outer and inner teeth of the intermediate magnetic material.

また、前記出力伝達手段をクラッチ板に設けた係合孔に係合する連結手段でクラッチ板と連結し、クラッチ板を介して駆動部材を駆動することを特徴とする。   Further, the output transmission means is connected to the clutch plate by a connecting means that engages with an engagement hole provided in the clutch plate, and the drive member is driven through the clutch plate.

また、前記出力伝達手段を駆動部材に設けた係合孔に係合する連結手段で駆動部材と連結したことを特徴とする。   Further, the output transmission means is connected to the drive member by connection means that engages with an engagement hole provided in the drive member.

本発明の負荷感応変速装置を内蔵した巻上牽引機は、動力伝達の切替えを磁気を用いた非接触回転スラスト変換機構によって実現するので、変速機内部の機械的接触は歯車および軸受け部分のみ限定されるため、スムーズな切替え操作が可能となり、また、作業者は荷重の状態が変化する度に煩雑な変速操作を行う必要はなくなり、また、磁気クラッチを用いた負荷感応変速機は、過負荷に対してスリップするため、定格以上の荷重を巻き上げようとした場合には、スリップし過負荷保護機能を奏するので、安全操作が可能となる。   In the hoisting tractor incorporating the load-sensitive transmission of the present invention, switching of power transmission is realized by a non-contact rotary thrust conversion mechanism using magnetism, so that mechanical contact within the transmission is limited only to the gear and the bearing portion. Therefore, it is possible to perform a smooth switching operation, and it is not necessary for the operator to perform a complicated gear shifting operation every time the load state changes, and the load sensitive transmission using the magnetic clutch is overloaded. Therefore, when an attempt is made to wind up a load exceeding the rated value, the slipping and overload protection function are performed, so that safe operation is possible.

また、動力入力手段であるハンドホイールから磁気式負荷感応型変速機に伝達する伝達手段を入力管とし、入力管内に磁気式負荷感応型変速機を内蔵するようにしたので、入力手段と磁気式負荷感応型変速機の出力手段を磁気式負荷感応型変速機の軸方向において、同一方向に配置することが可能となり、巻き上げ機の本体フレームの側面直近に配置することができ、巻上機全体を小形化でき、かつ、ハンドホイールに巻き掛けたチェーンを操作しても、本体の振れ量を抑えることができて、操作性を向上できるという効果を有する。   In addition, the transmission means that transmits power from the handwheel, which is a power input means, to the magnetic load-sensitive transmission is an input pipe, and the magnetic load-sensitive transmission is built in the input pipe. The output means of the load-sensitive transmission can be arranged in the same direction in the axial direction of the magnetic load-sensitive transmission, and can be arranged in the immediate vicinity of the side surface of the main body frame of the hoisting machine. Can be reduced in size, and even if a chain wound around a handwheel is operated, the amount of deflection of the main body can be suppressed, and the operability can be improved.

また、入力管を収納する外側フレームを、本体フレームの側面に備えると共に、外側フレームの内周で入力管を軸支するようにしたので、磁気式変速装置を、変速装置を備えない巻き上げ装置に追加する場合でも、簡単な改造で追加できるという効果を有する。   In addition, since the outer frame for storing the input pipe is provided on the side surface of the main body frame and the input pipe is pivotally supported on the inner periphery of the outer frame, the magnetic transmission can be used as a hoisting device that does not include the transmission. Even when adding, it has the effect that it can be added by simple modification.

また、変速機軸と巻上牽引機の駆動軸を同一軸線上にオフセット配置したので、出力伝達手段を入力管の内周に回転自在にかつ径方向内側に配置したので、巻上牽引機本体の小型化が可能となり、巻上牽引機本体の重量バランスを改善でき、かつ、ハンドホイールとロードチェーンのオフセットを短縮できるので手引き時に生ずる振れを減少することができる。   Since the transmission shaft and the drive shaft of the hoisting tractor are offset on the same axis, the output transmission means is arranged on the inner periphery of the input pipe so as to be rotatable and radially inward. The size can be reduced, the weight balance of the hoisting and pulling machine main body can be improved, and the offset between the handwheel and the load chain can be shortened, so that the shake generated during the hand-drawing can be reduced.

以下、本発明の負荷感応型自動変速装置を備えた巻上牽引機の実施の形態について図面を参照して説明する。   Embodiments of a hoisting tractor equipped with a load-sensitive automatic transmission according to the present invention will be described below with reference to the drawings.

図1はオーバロード機構を有しない形態の巻上牽引機の側面断面図、図2はオーバロード機構を有する形態の巻上牽引機側面断面図、図3は高トルク低速回転時の負荷感応型自動変速装置の側面断面図、図4は低トルク高速回転時の負荷感応型自動変速装置の側面断面図、図5は負荷感応型自動変速装置の分解概要図、図6は低負荷低速回転時の負荷感応型自動変速装置の正面断面図、図7は高負荷低速回転時の負荷感応型自動変速装置の正面断面図、図8(a)は高負荷低速回転時のスケルトン図、(b)は低負荷高速回転時のスケルトン図、図9(a)はスラスト変換機構の構成説明図、(b)は円周方向断面図、図10(a)は磁気クラッチ機構の構成説明図、(b)は円周方向断面図である。   1 is a side sectional view of a hoisting tractor having an overload mechanism, FIG. 2 is a side sectional view of a hoisting tractor having an overload mechanism, and FIG. 3 is a load-sensitive type at high torque and low speed rotation. 4 is a side sectional view of a load-sensitive automatic transmission during low-torque high-speed rotation, FIG. 5 is an exploded schematic diagram of the load-sensitive automatic transmission, and FIG. 6 is during low-load low-speed rotation. 7 is a front sectional view of the load-sensitive automatic transmission, FIG. 7 is a front sectional view of the load-sensitive automatic transmission during high-load low-speed rotation, FIG. 8A is a skeleton diagram during high-load low-speed rotation, and FIG. Is a skeleton diagram during low-load high-speed rotation, FIG. 9A is a diagram for explaining the configuration of a thrust conversion mechanism, FIG. 9B is a sectional view in the circumferential direction, FIG. 10A is a diagram for explaining the configuration of a magnetic clutch mechanism, ) Is a circumferential sectional view.

図において、1は巻上牽引機、2はロードシーブ及び減速ギヤ用軸受を備えた本体フレーム、3は本体フレーム2.2間に回転可能に軸支され、図示しないロードチェーンを巻き上げ巻き下げするロードシーブ、3aはロードシーブ3の中空軸に軸着されたロードギヤ、4はロードシーブ3の挿通孔に回転自在に貫装された駆動軸で、一端にはピニオン5a、他端には雄ネジ5bが設けられている。6はリンクチェーンが掛架されるハンドホイールで、後記する入力管14に連結手段14aで固設され、外周フレーム20に回転自在に軸支されている。6aは後記する連結手段14aが嵌装される連結孔、7は駆動軸4のピニオン5aと噛合し、ロードギヤ3aと噛合する図示しない減速歯車(小)と同軸に軸着された減速ギヤ(大)で、駆動軸4の回転を減速してロードシーブ3に伝達している。8は駆動軸4に回転不能に軸着された受圧部材で、ボス部8aには一対のブレーキ板10a、10bと、ブレーキ板10a、10bに挟装される逆転防止用爪車11が回転可能に外装されている。12は雌ネジ12aを有し、前記駆動軸4の雄ネジ5bに螺合する駆動部材で、正転することでブレーキ板10a、10b及び逆転防止用爪車11を介して受圧部材8を押圧し、駆動部材12の回転を駆動軸4に伝達するように構成され、逆転することで前記押圧方向とは逆方向にスライドして逆転防止用爪車11との係合を解放し逆転(巻き下げ)を可能にするように構成されている。12bは後記する出力円板25に固着され駆動部材12に向かって突出する連結部材25aが嵌装される連結孔である。連結部材25aと連結孔12bは、前記駆動部材12の正・逆転に伴なう軸方向のスライドを阻害することなく回転力のみを伝達する構成となっている。   In the figure, 1 is a hoisting tractor, 2 is a main body frame having a load sheave and a reduction gear bearing, and 3 is rotatably supported between main body frames 2.2 to wind up and lower a load chain (not shown). The load sheave, 3a is a load gear that is mounted on the hollow shaft of the load sheave 3, and 4 is a drive shaft that is rotatably inserted in the insertion hole of the load sheave 3, with a pinion 5a at one end and a male screw at the other end 5b is provided. Reference numeral 6 denotes a handwheel on which a link chain is hung. The handwheel is fixed to an input pipe 14 to be described later by a connecting means 14a, and is rotatably supported on an outer peripheral frame 20. 6a is a connecting hole into which connecting means 14a to be described later is fitted, 7 is a reduction gear (large) which is engaged with a pinion 5a of the drive shaft 4 and coaxially mounted with a reduction gear (small) (not shown) which is engaged with the load gear 3a. ), The rotation of the drive shaft 4 is decelerated and transmitted to the load sheave 3. Reference numeral 8 denotes a pressure receiving member that is non-rotatably attached to the drive shaft 4. A pair of brake plates 10a and 10b and a reverse rotation preventing claw wheel 11 sandwiched between the brake plates 10a and 10b are rotatable on the boss portion 8a. It is exterior. A drive member 12 has a female screw 12a and is screwed into the male screw 5b of the drive shaft 4, and presses the pressure receiving member 8 through the brake plates 10a and 10b and the reverse rotation preventing wheel 11 by rotating forward. The rotation of the drive member 12 is transmitted to the drive shaft 4, and by reversing, the slide with the reverse direction of the pressing direction is released to disengage the engagement with the reverse rotation preventing wheel 11 and reverse rotation (winding). It is configured to enable the lowering). Reference numeral 12b denotes a connecting hole into which a connecting member 25a that is fixed to an output disk 25, which will be described later, and protrudes toward the driving member 12 is fitted. The connecting member 25a and the connecting hole 12b are configured to transmit only the rotational force without obstructing the sliding in the axial direction accompanying the forward / reverse rotation of the driving member 12.

次に、巻上牽引機に備えられる負荷感応型自動変速装置について説明する。   Next, a load sensitive automatic transmission provided in the hoisting tractor will be described.

14はハンドホイール6の連結孔6aと連結手段14aで連結され、後記する外周フレーム20に回転自在に外周を軸支される中空の入力軸である入力管、15は外周を後記する外側コ字状磁性体16の入力管16取付面の反対側側面に取設されたプラネタリーキヤリア、16は外周フレーム20に軸受け19cを介して内接し、外周を軸支され、入力管14の端面で円周方向内側に開口し、プラネタリーキヤリア15と同速度で回転する断面コ字型の磁性体からなる外側コ字状磁性体で、後記する中間磁性体29の外側歯部29aと対向する歯部16aを有する。17はプラネタリーキヤリア15に設けたギヤ軸13に軸着された遊星ギヤ、18は前記ギヤ軸13の一端及び遊星ギヤ軸13を軸支する遊星ギヤ支持板である。遊星ギヤ17は後記する太陽ギヤ軸24に設けた太陽ギヤ24aに噛合し、軸芯が太陽ギヤ24aの周りを回転し、後記するアウターギヤ支持フレーム22に設けたアウターギヤ21と内接噛合するように構成されている。20はフランジ20aが巻上牽引機本体に固設され、一端にアウターギヤ支持フレーム22が固設される外周フレーム、22は外周フレーム20の開口部に固設されたアウターギヤ支持フレームで、開口部に遊星歯車装置を構成するアウターギヤ21が設けられている。24は遊星ギヤ支持板18に設けられた軸受け19a、プラネタリーキヤリア15の内周に設けられた軸受け19c及び後記する出力伝達手段25の内周に設けられた中空軸25bに設けられた軸受け19d、19dで軸支された出力軸である太陽ギヤ軸、24aは太陽ギヤ軸24の先端部に設けた太陽ギヤである。太陽ギヤ24aは前記した通り遊星ギヤ17と噛合し増速手段を構成する。23は太陽ギヤ軸24に該軸の軸芯と同芯円周上に等間隔で配置され、該軸24と一体で回転するように固設された断面コ字型の磁性体からなる内側コ字状磁性体で、図10(b)に示すように、後記する中間磁性体29の内側歯部29bに対向する歯部23aと出力回転を内側コ字状磁性体23に伝達する伝達部23bを有する。25は連結手段25aで駆動部材12と動力伝達可能に連結され、入力管14の内周に設けた軸受け19fで外周を軸支される出力伝達手段である出力円板、25bは出力円板25の内周で後記する高トルク伝達部材支持板28側に延出する中空軸である。連結手段25aは丸棒体で駆動部材12に設けた係合孔12bと係合し、駆動部材12にトルクを伝達する。26は前記した中空軸25aの外周に嵌装された中空の出力軸である出力管で、一端には磁性***置切り替え手段を有する中間円板27を備え、他端には外側コ字状磁性16と対向する断面コ字型の外側歯29aと内側コ字状磁性体23と対向する断面コ字型の内側歯29bを備えた磁性体からなる中間磁性体29が設けられている。中間磁性体29は図10(b)に示すように、外側コ字状磁性体16と内側コ字状磁性体23のいずれか一方と対向可能となっており、中間磁性体29が軸線方向右側に1/2ピッチ移動すると、図3及び図8(a)に示すように、外側コ字状磁性体16と対向し、軸線方向左側に1/2ピッチ移動すると、図4及び図8(b)に示すように内側コ字状磁性体23と対向するように構成されている。28は一端が出力円板25に固設され、中間円板27に設けたトルク伝達孔27bに嵌挿され、中間円板27と出力円板25を動力伝達可能に連結する高トルク伝達部材、28aは高トルク伝達部材28の他端を固着する高トルク伝達部材支持板である。30は中間磁性体間に設けられた磁性体連結用磁石で、一対の中間磁性体の一方がN極で他方がS極になるように配置され、外側コ字状磁性体及び内側コ字状磁性体のいずれか一方に対向可能に配置されている。中間磁性体29の外側歯29aと内側歯29bの歯部は前記磁石30より外側、内側にそれぞれ突出している。31は中間円板27に設けた磁石、32aは出力円板25に設けた中間円板27移動用磁石、32bは中間円板27移動用磁石の両側に配設され、中間円板27に戻し力を与える磁石である。磁石31と32a、32bは互いに対向して、位相及び極性と異にして配置されており、一定以上のトルクが前記した出力円板25と中間円板27間に加わると、出力円板25と中間円板27が相対的に所定角度回転変位し、出力円板25の磁石32aの先端の部分が中間円板27の磁石31の先端部分に移動し、両磁石は同極が対向するため反発し、その反発力によって中間円板27は軸線方向にスライドして移動する。従って、中間円板27と出力円板25間に所定のトルク以上の力が加わると、両円板の相対位置が移動し、そのトルクが低下すると原位置に復帰するように両者は磁石31及び32a、32bを介して磁気的に結合されている。図2に示す実施例において、35は駆動部材12とクラッチ押え37間に介装されたクラッチ板、36はクラッチ板35の両側に設けられた磨耗板、37は駆動部材12の雌ネジ部12aとクラッチ板35間に設けられたクラッチ押え、38はクラッチ押え37を介してクラッチ板35を付勢する押圧バネ、39は押圧35のバネ力を調整するトルク設定用ナット、40は駆動部材の雌ネジ12の所定量以上の弛みを防止するストッパーである。駆動部材12、クラッチ板35、磨耗板36、クラッチ押え37、押圧バネ38、ナット39でオーバーロードリミット機構を構成する。上記したオーバーロードリミット機構を備えた形態では、図2に記載する通り、出力円板25は連結手段25aでクラッチ板35と連結され、クラッチ板35を介して駆動部材12に駆動力が伝達される。   14 is an input tube which is a hollow input shaft which is connected to the connecting hole 6a of the hand wheel 6 by a connecting means 14a and is rotatably supported by an outer peripheral frame 20 which will be described later, and 15 is an outer U-shape which will be described later. A planetary carrier 16 mounted on the side surface opposite to the mounting surface of the input magnet 16 of the magnet-like magnetic body 16 is inscribed in the outer peripheral frame 20 via a bearing 19c, is supported on the outer periphery, and is circular on the end surface of the input tube 14. A tooth portion that opens to the inside in the circumferential direction and is an outer U-shaped magnetic body made of a U-shaped magnetic body that rotates at the same speed as the planetary carrier 15 and faces the outer tooth portion 29a of the intermediate magnetic body 29 described later. 16a. Reference numeral 17 denotes a planetary gear mounted on the gear shaft 13 provided on the planetary carrier 15, and 18 denotes a planetary gear support plate that supports one end of the gear shaft 13 and the planetary gear shaft 13. The planetary gear 17 meshes with a sun gear 24a provided on a sun gear shaft 24, which will be described later, and the shaft core rotates around the sun gear 24a, and is internally meshed with an outer gear 21 provided on an outer gear support frame 22, which will be described later. It is configured as follows. Reference numeral 20 denotes an outer peripheral frame in which a flange 20a is fixed to the hoisting tractor main body, and an outer gear support frame 22 is fixed to one end. Reference numeral 22 denotes an outer gear support frame fixed to an opening of the outer peripheral frame 20. The outer gear 21 which comprises a planetary gear apparatus is provided in the part. Reference numeral 24 denotes a bearing 19a provided on the planetary gear support plate 18, a bearing 19c provided on the inner periphery of the planetary carrier 15, and a bearing 19d provided on a hollow shaft 25b provided on the inner periphery of the output transmission means 25 described later. , 19d is a sun gear shaft, which is an output shaft supported by 19d, and 24a is a sun gear provided at the tip of the sun gear shaft 24. As described above, the sun gear 24a meshes with the planetary gear 17 to constitute a speed increasing means. 23 is arranged on the sun gear shaft 24 at an equal interval on the concentric circumference with the axis of the shaft, and an inner core made of a U-shaped magnetic body fixed to rotate integrally with the shaft 24. As shown in FIG. 10 (b), the tooth portion 23 a facing the inner tooth portion 29 b of the intermediate magnetic body 29 and a transmission portion 23 b for transmitting the output rotation to the inner U-shaped magnetic body 23. Have Reference numeral 25 denotes an output disk which is connected to the driving member 12 by a connecting means 25a so as to be able to transmit power, and is an output transmitting means which is supported on the outer periphery by a bearing 19f provided on the inner periphery of the input pipe 14, and 25b is an output disk 25. This is a hollow shaft extending to the side of the high torque transmission member support plate 28 which will be described later on the inner circumference. The connecting means 25 a is a round bar and engages with an engagement hole 12 b provided in the drive member 12 to transmit torque to the drive member 12. Reference numeral 26 denotes an output tube which is a hollow output shaft fitted on the outer periphery of the hollow shaft 25a. The output tube 26 includes an intermediate disk 27 having a magnetic body position switching means at one end and an outer U-shaped magnet at the other end. An intermediate magnetic body 29 made of a magnetic body is provided with a U-shaped outer tooth 29 a facing the 16 and an inner U-shaped tooth 29 b facing the inner U-shaped magnetic body 23. As shown in FIG. 10B, the intermediate magnetic body 29 can face either the outer U-shaped magnetic body 16 or the inner U-shaped magnetic body 23, and the intermediate magnetic body 29 is positioned on the right side in the axial direction. 3 and 8 (a), the outer U-shaped magnetic body 16 is opposed, and when it is moved 1/2 pitch to the left in the axial direction, as shown in FIGS. ), The inner U-shaped magnetic body 23 is opposed. 28 is a high torque transmission member, one end of which is fixed to the output disk 25, is fitted into a torque transmission hole 27b provided in the intermediate disk 27, and connects the intermediate disk 27 and the output disk 25 so as to transmit power. Reference numeral 28 a denotes a high torque transmission member support plate for fixing the other end of the high torque transmission member 28. 30 is a magnet for connecting magnetic bodies provided between the intermediate magnetic bodies, and is arranged so that one of the pair of intermediate magnetic bodies is an N pole and the other is an S pole. It arrange | positions so that either one of a magnetic body may be opposed. The tooth portions of the outer teeth 29a and the inner teeth 29b of the intermediate magnetic body 29 protrude outward and inward from the magnet 30, respectively. 31 is a magnet provided on the intermediate disk 27, 32 a is a magnet for moving the intermediate disk 27 provided on the output disk 25, and 32 b is disposed on both sides of the magnet for moving the intermediate disk 27, and is returned to the intermediate disk 27. It is a magnet that gives power. The magnets 31 and 32a and 32b are arranged opposite to each other with different phases and polarities, and when a certain torque or more is applied between the output disk 25 and the intermediate disk 27, the output disk 25 and The intermediate disk 27 is rotated and displaced by a predetermined angle relatively, the tip portion of the magnet 32a of the output disc 25 moves to the tip portion of the magnet 31 of the intermediate disc 27, and both magnets are repelled because the same poles face each other. The intermediate disk 27 is slid and moved in the axial direction by the repulsive force. Accordingly, when a force greater than a predetermined torque is applied between the intermediate disk 27 and the output disk 25, the relative positions of both disks move, and when the torque decreases, both of the magnet 31 and the output disk 25 return to their original positions. They are magnetically coupled via 32a and 32b. In the embodiment shown in FIG. 2, reference numeral 35 denotes a clutch plate interposed between the drive member 12 and the clutch presser 37, 36 denotes a wear plate provided on both sides of the clutch plate 35, and 37 denotes a female screw portion 12 a of the drive member 12. And a clutch presser provided between the clutch plate 35, 38 is a pressing spring for biasing the clutch plate 35 via the clutch presser 37, 39 is a torque setting nut for adjusting the spring force of the pressing 35, and 40 is a drive member. This is a stopper that prevents the female screw 12 from loosening more than a predetermined amount. The driving member 12, the clutch plate 35, the wear plate 36, the clutch presser 37, the pressing spring 38, and the nut 39 constitute an overload limit mechanism. In the embodiment provided with the overload limit mechanism described above, as shown in FIG. 2, the output disk 25 is connected to the clutch plate 35 by the connecting means 25a, and the driving force is transmitted to the drive member 12 via the clutch plate 35. The

次に自動変速装置の高速・低速の切り替え手段について説明する。   Next, the high-speed / low-speed switching means of the automatic transmission will be described.

図9に示すように、出力管26の端部に設けた中間円板27には永久磁石M1(31)を、出力伝達手段である出力円板25には中間円板27移動用磁石MOA(32a)と、この中間円板移動用MOA(32a)の両側に、中間円板27に戻し力を与える磁気バネ用磁石MOB(32b)をそれぞれ配置する。最初に負荷トルクが小さい場合は、中間円板27に配置した磁石M1と出力円板25に配置した磁石MOAの異極同士が対向して吸引する。このため中間円板27を出力円板25に近づける方向にスラストが発生し、中間円板27は軸方向にスライドして太陽ギヤ24で高速回転する内側コ字状磁性体23側に接続し、変速機は、図8(b)に示す高速モードで動作する。この動作時、中間磁性体29は内側コ字状磁性体23と対向する位置にスライドし、中間磁性体29に設けた磁石30により、両磁性体は磁気結合し、中間磁性体29の内歯29bが内側コ字状磁性体23の歯部23aと噛合し、高速モードで動作する。この状態は中間円板27と出力円板25間に所定以上の軸線方向に移動する力が作用するまではこの位置を保持する。また、このとき、中間円板27の磁石M1のS極は、磁気バネ用磁石MOBのS極に対向し、中間円板26aの磁石M1のN極は磁気バネ用磁石MOB'のN極に対向するため、前記のような中間円板移動用磁石MOAと吸引している状態におていは、磁石M1が両側から受ける反発力による磁気的バネ作用によって所定位置が保持される。   As shown in FIG. 9, a permanent magnet M1 (31) is provided on the intermediate disk 27 provided at the end of the output tube 26, and an intermediate disk 27 moving magnet MOA (on the output disk 25 serving as output transmission means). 32a) and magnet springs MOB (32b) for applying a return force to the intermediate disk 27 are arranged on both sides of the intermediate disk moving MOA (32a). When the load torque is initially small, the different polarities of the magnet M1 disposed on the intermediate disk 27 and the magnet MOA disposed on the output disk 25 are attracted to face each other. For this reason, thrust is generated in a direction in which the intermediate disk 27 is brought closer to the output disk 25, and the intermediate disk 27 is connected to the inner U-shaped magnetic body 23 side that slides in the axial direction and rotates at high speed with the sun gear 24. The transmission operates in the high speed mode shown in FIG. During this operation, the intermediate magnetic body 29 slides to a position facing the inner U-shaped magnetic body 23, and both the magnetic bodies are magnetically coupled by the magnet 30 provided on the intermediate magnetic body 29, and the inner teeth of the intermediate magnetic body 29 are 29b meshes with the teeth 23a of the inner U-shaped magnetic body 23, and operates in the high speed mode. In this state, this position is maintained until a force that moves in a predetermined axial direction or more is applied between the intermediate disk 27 and the output disk 25. At this time, the S pole of the magnet M1 of the intermediate disc 27 faces the S pole of the magnet MOB for magnetic spring, and the N pole of the magnet M1 of the intermediate disc 26a is the N pole of the magnet SPB MOB '. Since they face each other, in a state of being attracted with the intermediate disk moving magnet MOA as described above, the predetermined position is held by the magnetic spring action due to the repulsive force that the magnet M1 receives from both sides.

次に、負荷トルクが増大すると、中間円板27と出力円板25を結合する磁気的バネ要素に戻れ力が生じ、その力が前記磁気バネの保持力を超えると、両円板が相対回転する。その結果磁石の位置関係が変化し、中間円板27の磁石M1が中間円板移動用磁石側MOA側に移動し、両磁石の同極が対向するため、相互に反発し、中間円板27に作用するスラスト方向が反転し、中間磁性体29は入力管14に設けられた外側コ字状磁性体16と対向する位置にスライドし、中間磁性体29に設けた磁石30により、両磁性体は磁気結合し、中間磁性体29の外歯29aが外側コ字状磁性体16の歯部16aと噛合し、変速機は低速モードに遷移して、出力円板25に設けた連結手段25aを介して巻上牽引機の駆動部材12または図2に示すクラッチ板35を高負荷に対応した低速回転を行う。   Next, when the load torque increases, a return force is generated in the magnetic spring element that couples the intermediate disk 27 and the output disk 25, and when the force exceeds the holding force of the magnetic spring, both the disks rotate relative to each other. To do. As a result, the positional relationship of the magnets changes, the magnet M1 of the intermediate disk 27 moves to the intermediate disk moving magnet side MOA side, and since the same poles of both magnets face each other, they repel each other, and the intermediate disk 27 The intermediate magnetic body 29 slides to a position facing the outer U-shaped magnetic body 16 provided in the input tube 14 and the magnet 30 provided in the intermediate magnetic body 29 causes both magnetic bodies to reverse. Is magnetically coupled, the outer teeth 29a of the intermediate magnetic body 29 mesh with the teeth 16a of the outer U-shaped magnetic body 16, the transmission shifts to the low speed mode, and the connecting means 25a provided on the output disk 25 is connected. Then, the drive member 12 of the hoisting tractor or the clutch plate 35 shown in FIG. 2 is rotated at a low speed corresponding to a high load.

上記した通り、本実施の形態の負荷型自動変速装置は、低負荷高速時には、図8(b)に示すように出力管26の中間磁性体29は内側コ字状磁性体23に接続し、ハンドホイール6に連結する入力管14の回転は、遊星ギヤ17、遊星ギヤ17と噛合する太陽歯車24aで増速され、太陽ギヤ軸24を増速回転し、太陽ギヤ軸24に固設された内側コ字状磁性体23の歯23aと中間磁性体29の内歯29bが噛合し、中間磁性体29及び出力管26が高速回転し、出力円板25に設けた連結手段25aを介して巻上牽引機の駆動部材12または図2に示すクラッチ板35を低負荷に対応した高速回転を行う。   As described above, in the load type automatic transmission according to the present embodiment, the intermediate magnetic body 29 of the output pipe 26 is connected to the inner U-shaped magnetic body 23 as shown in FIG. The rotation of the input pipe 14 connected to the handwheel 6 is accelerated by the planetary gear 17 and the sun gear 24 a meshing with the planetary gear 17, and the sun gear shaft 24 is rotated at a higher speed and fixed to the sun gear shaft 24. The teeth 23a of the inner U-shaped magnetic body 23 and the inner teeth 29b of the intermediate magnetic body 29 mesh with each other, the intermediate magnetic body 29 and the output tube 26 rotate at high speed, and are wound through connecting means 25a provided on the output disk 25. The drive member 12 of the upper traction machine or the clutch plate 35 shown in FIG. 2 is rotated at a high speed corresponding to a low load.

上記した動作時において、高負荷低速時には、図8(a)に示すように、出力管26の中間磁性体29は入力管14に設けた外側コ字状磁性体16に接続し、外側コ字状磁性体16の歯部16aと中間磁性体29の外側歯29aが噛合し、出力管26は入力管14と同速で回転する。この動作時に、出力管26に設けた中間円板27と出力円板25の磁気的連結は遮断されているので、出力管26が回転すると、出力円板25に設けた高トルク伝達部材28と中間円板27に設けたトルク伝達孔27aの相対位置が図6から、高トルク伝達部材28がトルク伝達孔27aの端部に当接する図7の状態に変位し、出力管26の回転は高トルク伝達部材28を介して出力円板25を低速回転し、出力円板25に設けた連結手段25aを介して巻上牽引機の駆動部材12または図2に示すクラッチ板35を低速回転する。   During the above operation, at the time of high load and low speed, as shown in FIG. 8A, the intermediate magnetic body 29 of the output tube 26 is connected to the outer U-shaped magnetic body 16 provided on the input tube 14, and the outer U-shaped The teeth 16a of the magnetic member 16 and the outer teeth 29a of the intermediate magnetic member 29 mesh with each other, and the output tube 26 rotates at the same speed as the input tube 14. During this operation, the magnetic connection between the intermediate disk 27 provided on the output pipe 26 and the output disk 25 is interrupted, so that when the output pipe 26 rotates, the high torque transmission member 28 provided on the output disk 25 and The relative position of the torque transmission hole 27a provided in the intermediate disk 27 is displaced from FIG. 6 to the state of FIG. 7 where the high torque transmission member 28 contacts the end of the torque transmission hole 27a, and the rotation of the output tube 26 is high. The output disk 25 is rotated at a low speed via the torque transmission member 28, and the drive member 12 of the hoisting / traction machine or the clutch plate 35 shown in FIG. 2 is rotated at a low speed via a connecting means 25a provided on the output disk 25.

駆動部材12が高速または低速で回転すると、駆動部材12はブレーキ板10a、10b、爪車11を受圧部材8に押圧し、受圧部材8を介して駆動軸4を回転し、駆動軸4の端部に設けたピニオンギヤ5aと噛合する減速ギヤ7と噛合するロードギヤ3aを介してロードシーブ3を回転する。   When the driving member 12 rotates at a high speed or a low speed, the driving member 12 presses the brake plates 10a and 10b and the ratchet wheel 11 against the pressure receiving member 8, rotates the driving shaft 4 via the pressure receiving member 8, and The load sheave 3 is rotated through a load gear 3a that meshes with a reduction gear 7 that meshes with a pinion gear 5a provided in the section.

また、図2に示す実施例のように、駆動部材12と変速装置の出力円板25間にクラッチ板35、磨耗板36、クラッチ押え37、押圧バネ38、トルク設定用ナット39からなるフリクションクラッチ手段を備える構成とすると、吊り上げ荷重が超過しても、フリクションクラッチが滑ることで、自動変速機に所定のトルク以上の負荷が掛かるのを防ぎ、変速装置の故障の発生を防止することができる。フリクションクラッチのトルク値はトルク設定用ナット39で押圧バネ38のバネ力を所定値に調整することで適宜設定される。   2, a friction clutch comprising a clutch plate 35, a wear plate 36, a clutch presser 37, a pressing spring 38, and a torque setting nut 39 between the drive member 12 and the output disc 25 of the transmission. With the configuration including the means, even if the lifting load is exceeded, the friction clutch slips to prevent the automatic transmission from being loaded with a predetermined torque or more, and the transmission can be prevented from malfunctioning. . The torque value of the friction clutch is appropriately set by adjusting the spring force of the pressing spring 38 to a predetermined value with the torque setting nut 39.

上記実施の形態において、外側コ字状磁性体16は外周フレーム20に設けた軸受け19eによって外周を軸支する構成として説明したが、入力管14を外周フレーム20に設けた軸受けで軸支し、外側コ字状磁性体16の軸受けを省略することもできる。また、プラネタリキャリア15の軸受けを外周フレーム20に設けた軸受けで軸支することもできる。   In the above embodiment, the outer U-shaped magnetic body 16 has been described as a configuration in which the outer periphery is supported by the bearing 19e provided in the outer peripheral frame 20, but the input tube 14 is supported by the bearing provided in the outer peripheral frame 20, The bearing of the outer U-shaped magnetic body 16 can be omitted. Further, the bearing of the planetary carrier 15 can be supported by a bearing provided on the outer peripheral frame 20.

また、外側コ字状磁性体16を入力管14の端面に直接設けることもできる。   Further, the outer U-shaped magnetic body 16 can be provided directly on the end face of the input tube 14.

また、ハンドホイール6を連結する入力管14を軸受け19eで外周フレーム20に回転可能に軸支する構成として説明したが、ハンドホイール6を本体フレームによって軸支するようにすることも、また、駆動部材12の外周で軸支する構成とすることもできる。   Further, the input tube 14 for connecting the handwheel 6 has been described as a structure that is rotatably supported on the outer peripheral frame 20 by the bearing 19e. However, the handwheel 6 can also be supported by the main body frame. It can also be set as the structure supported by the outer periphery of the member 12. FIG.

オーバロード機構を有しない形態の巻上牽引機の側面断面図。Side surface sectional drawing of the hoisting machine of a form which does not have an overload mechanism. オーバロード機構を有する形態の巻上牽引機の側面断面図。Side surface sectional drawing of the winding traction machine of the form which has an overload mechanism. 高トルク低速回転時の負荷感応型自動変速装置の側面断面図。Side surface sectional drawing of the load sensitive automatic transmission at the time of a high torque low speed rotation. 低トルク高速回転時の負荷感応型自動変速装置の側面断面図。The side sectional view of a load sensitive automatic transmission at the time of low torque high speed rotation. 負荷感応型自動変速装置の分解概要図。The exploded schematic diagram of a load sensitive automatic transmission. 低負荷高速回転時の負荷感応型自動変速装置の正面断面図。1 is a front sectional view of a load-sensitive automatic transmission during low-load high-speed rotation. 高負荷低速回転時の負荷感応型自動変速装置の正面断面図。1 is a front sectional view of a load-sensitive automatic transmission during high load and low speed rotation. (a)は高負荷低速回転時のスケルトン図、(b)は低負荷高速回転時のスケルトン図。(A) is a skeleton diagram during high-load low-speed rotation, and (b) is a skeleton diagram during low-load high-speed rotation. (a)はスラスト変換機構の構成説明図、(b)は断面図。(A) is structure explanatory drawing of a thrust conversion mechanism, (b) is sectional drawing. (a)は磁気クラッチ機構の構成説明図、(b)は断面図。(A) is structure explanatory drawing of a magnetic clutch mechanism, (b) is sectional drawing.

符号の説明Explanation of symbols

3 ロードシーブ
4 駆動軸
6 ハンドホイール
7 減速ギヤ
8 受圧部材
10a、10b ブレーキ板
11 爪車
12 駆動部材
14 入力管
15 プラネタリーキャリア
16 外側コ字状磁性体
17 遊星ギヤ
19a〜19e 軸受け
20 外周フレーム
21 アウターギヤ
23 内側コ字状磁性体
24 太陽ギヤ軸/出力軸
25 出力円板
25a 連結手段
25b 中空軸
26 出力管
27 中間円板
27a 連結孔
28 高トルク伝達部材
29 中間磁性体
30 磁石
35 クラッチ板
36 磨耗板
37 クラッチ押え
38 押圧バネ
39 トルク設定用ナット
DESCRIPTION OF SYMBOLS 3 Load sheave 4 Drive shaft 6 Hand wheel 7 Reduction gear 8 Pressure receiving member 10a, 10b Brake plate 11 Claw wheel 12 Drive member 14 Input pipe 15 Planetary carrier 16 Outer U-shaped magnetic body 17 Planetary gears 19a-19e Bearing 20 Outer frame 21 outer gear 23 inner U-shaped magnetic body 24 sun gear shaft / output shaft 25 output disk 25a connecting means 25b hollow shaft 26 output tube 27 intermediate disk 27a connecting hole 28 high torque transmission member 29 intermediate magnetic body 30 magnet 35 clutch Plate 36 Wear plate 37 Clutch presser 38 Press spring 39 Torque setting nut

Claims (8)

巻上牽引機のハンドホイールと駆動部材間に負荷感応型自動変速装置を内蔵した巻上牽引機であって、ハンドホイールに連結された入力管の端面に設けられた外側磁性体と、入力管の回転を増速装置を介して高速回転し、入力管の回転中心上に軸芯を有する出力軸に固設された内側磁性体と、前記外側磁性体と内側磁性体の中間に、磁性***置切り替え手段により、出力軸の軸線方向に移動可能な出力管の一端に設けられ、前記外側磁性体と内側磁性体のいずれか一方の歯部と噛合可能な外側及び内側歯部を有し、高速及び低速回転の切り替えを行う中間磁性体と、出力管の駆動を駆動力伝達手段を介して巻上牽引機の駆動部材に伝達する出力伝達手段を備え、負荷トルクにより中間磁性体を内側磁性体または外側磁性体に対向させ、駆動部材の回転を高速または低速回転に切り替えることを特徴とする負荷感応型自動変速装置を内蔵した巻上牽引機。   A hoisting machine incorporating a load-sensitive automatic transmission between a handwheel of a hoisting tractor and a drive member, an outer magnetic body provided on an end surface of the input pipe connected to the handwheel, and an input pipe An inner magnetic body fixed to an output shaft having an axial center on the rotation center of the input tube, and a magnetic body between the outer magnetic body and the inner magnetic body. It is provided at one end of the output tube movable in the axial direction of the output shaft by the position switching means, and has outer and inner teeth that can mesh with either one of the outer magnetic body and the inner magnetic body. An intermediate magnetic body that switches between high speed and low speed rotation and an output transmission means that transmits the drive of the output pipe to the drive member of the hoisting traction machine via the driving force transmission means are provided, and the intermediate magnetic body is magnetized by the load torque. Body or outer magnetic body facing the drive unit Hoisting and pulling device with a built-in load sensitive automatic transmission and switches the rotational speed or low speed. 前記入力管を巻上牽引機に固設された外周フレームの内周に回転自在に軸支し、出力伝達手段を入力管の内周に回転自在に軸支し、入力管及び出力伝達手段の回転中心を巻上牽引機の駆動軸と同一軸線上に設けたことを特徴とする請求項1記載の負荷感応型自動変速装置を内蔵した巻上牽引機。   The input pipe is rotatably supported on the inner periphery of an outer peripheral frame fixed to the hoisting and pulling machine, and the output transmission means is rotatably supported on the inner periphery of the input pipe. 2. A hoisting machine incorporating a load-sensitive automatic transmission according to claim 1, wherein the center of rotation is provided on the same axis as the drive shaft of the hoisting machine. 前記増速装置は、入力管の端部に設けたプラネタリーキャリアに軸着された遊星歯車と、外周フレームの端部に設けたアウターギヤ支持フレームの開口部内面に設けられ、前記遊星歯車が内接噛合するアウターギヤと、太陽ギヤ軸の端部に設けられ、前記遊星歯車と内接噛合する太陽ギヤであることを特徴とする請求項1記載の負荷感応型自動変速装置を内蔵した巻上牽引機。   The speed increasing device is provided on an inner surface of an opening of a planetary gear mounted on a planetary carrier provided at an end of an input pipe and an outer gear support frame provided on an end of an outer peripheral frame, and the planetary gear is 2. A winding incorporating a load-sensitive automatic transmission according to claim 1, wherein the winding is an inner gear and an outer gear and a sun gear provided at an end of a sun gear shaft and in mesh with the planetary gear. Upper traction machine. 前記磁性***置切り替え手段は、出力管の他端に設けられた中間円板に固設された位置切り替え磁石と、出力伝達手段に固設され、前記位置切り替え磁石に対向する一対の出力管移動磁石と、出力管移動磁石の両側に設けられた出力管戻し磁石であり、一定以上のトルクが出力伝達手段と中間円板間に加わると、両部材の相対位置が移動し、磁石の反発により中間円板を軸方向にスライドさせ、トルクが低下すると原位置に復帰するように、中間円板と出力伝達手段を磁気的に結合したことを特徴とする請求項1記載の負荷感応型自動変速装置を内蔵した巻上牽引機。   The magnetic body position switching means includes a position switching magnet fixed to an intermediate disk provided at the other end of the output pipe, and a pair of output pipe movements fixed to the output transmission means and facing the position switching magnet. A magnet and an output tube return magnet provided on both sides of the output tube moving magnet. When a torque exceeding a certain level is applied between the output transmission means and the intermediate disk, the relative positions of both members move, and the magnet is repelled. 2. The load-sensitive automatic transmission according to claim 1, wherein the intermediate disk and the output transmission means are magnetically coupled so that the intermediate disk is slid in the axial direction and returned to its original position when the torque decreases. Hoisting traction machine with built-in device. 前記駆動力伝達手段は、低トルク時に出力管と出力伝達手段を磁気的に連結する磁石と、高トルク時に出力管と出力伝達手段を機械的に連結する高トルク伝達部材であることを特徴とする請求項1記載の負荷感応型自動変速装置を内蔵した巻上牽引機。   The driving force transmission means is a magnet that magnetically connects the output pipe and the output transmission means at low torque, and a high torque transmission member that mechanically connects the output pipe and the output transmission means at high torque. A hoisting tractor incorporating the load-sensitive automatic transmission according to claim 1. 前記中間磁性体の外側及び内側歯部間に磁性体連結用磁石を設け、中間磁性体の歯部を外側磁性体と内側磁性体のいずれか一方の歯部と噛合するように磁気的に結合することを特徴とする請求項1記載の負荷感応型自動変速装置を内蔵した巻上牽引機。   A magnetic coupling magnet is provided between the outer and inner teeth of the intermediate magnetic body, and the teeth of the intermediate magnetic body are magnetically coupled so as to mesh with either the outer magnetic body or the inner magnetic body. A hoisting tractor incorporating the load-sensitive automatic transmission according to claim 1. 前記出力伝達手段をクラッチ板に設けた係合孔に係合する連結手段でクラッチ板と連結し、クラッチ板を介して駆動部材を駆動することを特徴とする請求項1〜6いずれかに記載の負荷感応型自動変速装置を内蔵した巻上牽引機。   7. The output member is coupled to a clutch plate by a coupling unit that engages with an engagement hole provided in the clutch plate, and the drive member is driven through the clutch plate. Hoisting traction machine with built-in load-sensitive automatic transmission. 前記出力伝達手段を駆動部材に設けた係合孔に係合する連結手段で駆動部材と連結したことを特徴とする請求項1〜6いずれかに記載の負荷感応型自動変速装置を内蔵した巻上牽引機。   7. The winding incorporating the load-sensitive automatic transmission according to claim 1, wherein the output transmission means is connected to the drive member by a connection means that engages with an engagement hole provided in the drive member. Upper traction machine.
JP2008082730A 2008-03-27 2008-03-27 Hoisting traction machine with built-in load-sensitive automatic transmission Expired - Fee Related JP4841584B2 (en)

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JP5231498B2 (en) * 2009-10-19 2013-07-10 株式会社キトー Torque transmission device
JP5342524B2 (en) * 2010-08-31 2013-11-13 株式会社キトー Load-sensitive magnetic clutch device
JP5529689B2 (en) * 2010-09-10 2014-06-25 株式会社キトー Hoisting machine with built-in load-sensitive automatic transmission
JP5890216B2 (en) * 2012-03-26 2016-03-22 株式会社キトー Hoisting machine with built-in load-sensitive automatic transmission
CN110836227B (en) * 2018-08-15 2023-07-18 纳博特斯克有限公司 Clutch connection method and clutch mechanism

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JP3158185B2 (en) * 1998-10-23 2001-04-23 象印チエンブロック株式会社 Chain block
JP4272780B2 (en) * 1999-11-19 2009-06-03 株式会社キトー Automatic transmission in chain block
JP3584396B2 (en) * 2000-07-17 2004-11-04 独立行政法人産業技術総合研究所 Load-sensitive automatic transmission
JP4280817B2 (en) * 2003-05-22 2009-06-17 独立行政法人産業技術総合研究所 Non-contact load-sensitive automatic transmission

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