JP2013133663A - Cutter head driving device - Google Patents

Cutter head driving device Download PDF

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JP2013133663A
JP2013133663A JP2011285505A JP2011285505A JP2013133663A JP 2013133663 A JP2013133663 A JP 2013133663A JP 2011285505 A JP2011285505 A JP 2011285505A JP 2011285505 A JP2011285505 A JP 2011285505A JP 2013133663 A JP2013133663 A JP 2013133663A
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cutter head
pinion
frame
ring gear
driving
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JP5891032B2 (en
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Yasunori Kondo
保徳 近藤
Makoto Oda
誠 小田
Kazunori Yamanaka
和典 山中
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Kawasaki Heavy Industries Ltd
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Kawasaki Heavy Industries Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a cutter head driving device (4) capable of supporting both ends of a pinion (35) by effectively utilizing a frame member on an excavator body side, and a cutter head driving device (4) capable of having a pinion (35), an output shaft member (36), driving parts (41, 42), etc., individually being replaced.SOLUTION: A cutter head driving device (4) of a tunnel excavator (1) includes a ring gear (30) which transmits turning force of a cutter head (2), and a plurality of rotary driving devices (31) having a plurality of pinions (35) engaging the ring gear (30) and a plurality of rotary driving machines (37) rotatably driving the pinions (35). A front-end bearing member (38a) supporting a front-end shaft part (35a) of each pinion (35) rotatably and a rear-end bearing member (38b) supporting a rear-end shaft part (35b) rotatably are supported by an inner peripheral side frame (8) and an outer peripheral frame (9) as frame members fixed to a partition wall (3a) partitioning off a chamber (3) on a back side of the cutter head (2) and included in the excavator body.

Description

本発明は、トンネル掘削機のカッターヘッド駆動装置に関し、特にカッターヘッド駆動装置の複数の回転駆動装置の各ピニオンの支持構造に関する。   The present invention relates to a cutter head drive device for a tunnel excavator, and more particularly to a support structure for each pinion of a plurality of rotary drive devices of a cutter head drive device.

トンネル掘削機は、通常、カッターヘッドと、カッターヘッドの背面側のチャンバーと、チャンバーを仕切る隔壁と、掘削機本体と、胴部材(前部胴、後部胴)と、カッターヘッドを回転駆動するカッターヘッド駆動装置と、掘削物をチャンバー内から排出する排出装置と、複数のシールドジャッキと、複数の中折れジャッキと、トンネル内面をセグメンドなどの覆工部材で覆工するエレクタ等を備えている。   A tunnel excavator usually has a cutter head, a chamber on the back side of the cutter head, a partition wall that divides the chamber, an excavator body, a trunk member (front trunk, rear trunk), and a cutter that rotationally drives the cutter head. A head drive device, a discharge device for discharging the excavated material from the chamber, a plurality of shield jacks, a plurality of folded jacks, an erector for covering the inner surface of the tunnel with a covering member such as a segment, and the like are provided.

前記カッターヘッド駆動装置は、リングギヤと、このリングギヤを回転駆動する複数の回転駆動装置とで構成されている。各回転駆動装置は、リングギヤの内歯又は外歯に噛合したピニオンと、このピニオンを回転駆動する電動式又は油圧式の回転駆動機とを有する。一般に、回転駆動機の出力部から延びた出力軸部材の先端部にピニオンが固定され、回転駆動機のケース部材を掘削機本体に含まれるフレーム部材に固定することにより、ピニオンは回転駆動機の出力部に片持ち状に支持された状態で、リングギヤに噛合している。   The cutter head driving device includes a ring gear and a plurality of rotation driving devices that rotationally drive the ring gear. Each rotation drive device has a pinion meshed with the inner teeth or outer teeth of the ring gear, and an electric or hydraulic rotation drive machine that rotationally drives the pinion. Generally, a pinion is fixed to the tip of an output shaft member extending from the output part of the rotary drive, and the pinion is fixed to the frame member included in the excavator body by fixing the case member of the rotary drive. The ring gear is engaged with the output portion in a cantilevered state.

例えば、特許文献1に記載のトンネル掘削機のカッターヘッド駆動装置においては、リングギヤの外歯に噛合するピニオンをカッター旋回モータで回転駆動するように構成し、カッター旋回モータのケース部材を掘削機本体に含まれるフレーム部材に固定し、ピニオンが片持ち状に支持されている。   For example, in the cutter head drive device of a tunnel excavator described in Patent Document 1, a pinion that meshes with the outer teeth of the ring gear is configured to be rotationally driven by a cutter turning motor, and the case member of the cutter turning motor is used as the excavator body. The pinion is supported in a cantilevered manner.

特許文献2に記載のシールドマシン100においては、図5に示すように、そのシールドフレーム102の前端側にカッタ104が装備され、カッタ104の背面側に隔壁103で仕切ったチャンバー108が設けられている。カッタ駆動装置105のリングギヤ110は、中間ビーム122を介してカッタ104に連結され、このリングギヤ110は旋回環106により回転自在に支持されている。この例でもカッタ駆動装置105の駆動モータ109の出力軸にピニオン129が片持ち状に支持され、リングギヤ110に噛合している。   In the shield machine 100 described in Patent Document 2, a cutter 104 is provided on the front end side of the shield frame 102 and a chamber 108 partitioned by a partition wall 103 is provided on the back side of the cutter 104 as shown in FIG. Yes. The ring gear 110 of the cutter driving device 105 is connected to the cutter 104 via an intermediate beam 122, and this ring gear 110 is rotatably supported by the turning ring 106. Also in this example, the pinion 129 is supported in a cantilever manner on the output shaft of the drive motor 109 of the cutter driving device 105 and meshed with the ring gear 110.

一方、特許文献を見つけることはできなかったが、ピニオン203を両端支持するように構成したカッターヘッド駆動装置200も実用化されている。図6に示すように、カッターヘッド駆動装置のリングギヤを回転駆動する複数のモータユニット200の各々において、モータユニット200は、駆動モータ200aと減速機200bとピニオン203とを有している。そして、減速機200bのケース部材201にピニオン203の外周側の約半分と先端側半分とを覆う延長ケース部材202を設け、ピニオン203の前端軸部を支持する前端軸受部材を延長ケース部材202の前端壁部202aに支持させている。   On the other hand, although patent documents could not be found, a cutter head driving device 200 configured to support both ends of the pinion 203 has also been put into practical use. As shown in FIG. 6, in each of the plurality of motor units 200 that rotationally drive the ring gear of the cutter head drive device, the motor unit 200 includes a drive motor 200 a, a speed reducer 200 b, and a pinion 203. Then, the case member 201 of the speed reducer 200 b is provided with an extension case member 202 that covers about half of the outer periphery side and the tip side half of the pinion 203, and the front end bearing member that supports the front end shaft portion of the pinion 203 is used as the extension case member 202. The front end wall 202a is supported.

このカッターヘッド駆動装置200においても、ケース部材201については掘削機本体に含まれるフレーム部材に固定される。モータユニット200のケース部材201を掘削機本体側のフレーム部材に固定する構造としては、ケース部材201にフランジ部201aを形成し、このフランジ部201aを介して掘削機本体側のフレーム部材にボルトで固定するのが一般的である。   Also in the cutter head driving device 200, the case member 201 is fixed to a frame member included in the excavator body. As a structure for fixing the case member 201 of the motor unit 200 to the frame member on the excavator main body side, a flange portion 201a is formed on the case member 201, and the frame member on the excavator main body side is bolted through the flange portion 201a. It is common to fix.

特開2007−327246号公報JP 2007-327246 A 特開2010−77650号公報JP 2010-77650 A

カッターヘッド駆動装置において、ピニオンを片持ち支持する従来の構造では、リングギヤに駆動力を伝達する際に、軸受内部の隙間やピニオン軸の撓みを考慮し、歯当たりが全体に及ぶようにピニオンに対してクラウニングを考慮しなければならなかった。また、ピニオン軸の撓みを極力小さくするためにピニオンの軸の剛性を高める必要があり、ピニオンの軸の径を大きくする必要があった。そのため、回転駆動装置、ピニオンをコンパクトにできず、小径で強力な駆動力を有するカッターヘッド駆動装置を設計する上で問題となっていた。また、それらの製作費が高価になる上、ピニオン歯面や減速機の耐久性も低くなる等の問題もある。   In the conventional structure where the pinion is cantilevered in the cutter head drive device, when transmitting the driving force to the ring gear, the clearance inside the bearing and the deflection of the pinion shaft are taken into account so that the tooth contact extends over the entire pinion. On the other hand, we had to consider crowning. Further, in order to minimize the deflection of the pinion shaft, it is necessary to increase the rigidity of the pinion shaft, and it is necessary to increase the diameter of the pinion shaft. For this reason, the rotary drive device and the pinion cannot be made compact, and there has been a problem in designing a cutter head drive device having a small diameter and a strong drive force. In addition, the production costs are high, and the durability of the pinion tooth surface and the speed reducer is low.

一方、上述のとおり、前記モータユニットのケース部材の延長ケース部材を介してピニオンを両端支持する構造も実用化されている。この場合はピニオン軸の径を大きくする必要はないが、延長ケース部材やフランジ部の形成が別に必要になる。そのため、回転駆動機の出力部の構造は複雑となり、回転駆動装置をコンパクトに設計することはできない。   On the other hand, as described above, a structure that supports both ends of the pinion via the extended case member of the case member of the motor unit has been put into practical use. In this case, it is not necessary to increase the diameter of the pinion shaft, but it is necessary to separately form an extension case member and a flange portion. Therefore, the structure of the output unit of the rotary drive machine becomes complicated, and the rotary drive device cannot be designed compactly.

従って、本発明の目的は、小径で強力な駆動力を有するカッターヘッド駆動装置の設計を可能とすべく、回転駆動装置全体のコンパクト化を図り、回転駆動機出力部の構造のコンパクト化を図ることである。   Therefore, an object of the present invention is to make the rotary drive device compact and to make the structure of the output unit of the rotary drive compact so that the cutter head drive device having a small diameter and a strong driving force can be designed. That is.

請求項1のカッターヘッド駆動装置は、トンネル掘削機の前端部に装備されるカッターヘッドを回転駆動するカッターヘッド駆動装置において、前記カッターヘッドに回転力を伝達するリングギヤと、前記リングギヤに噛合した複数のピニオンと、これらピニオンを夫々回転駆動する複数の回転駆動機とを有する複数の回転駆動装置とを備え、前記各ピニオンを掘削機本体に含まれるフレーム部材で両端支持するように構成したことを特徴としている。   The cutter head drive device according to claim 1 is a cutter head drive device that rotationally drives a cutter head equipped at a front end portion of a tunnel excavator, and a ring gear that transmits rotational force to the cutter head, and a plurality of meshed meshes with the ring gear And a plurality of rotational drive devices each having a plurality of rotational drive units that rotationally drive these pinions, and each pinion is supported at both ends by a frame member included in the excavator body. It is a feature.

このカッターヘッド駆動装置においては、複数の回転駆動装置を回転駆動すると、複数のピニオンが回転駆動され、その回転駆動力がリングギヤに伝達されてカッターヘッドが回転駆動され、カッターヘッドにより切羽が掘削される。各ピニオンを掘削機本体に含まれるフレーム部材で両端支持するように構成したため、前記フレーム部材を有効活用してピニオンを両端支持することができる。そのため、回転駆動装置の回転駆動機からピニオンに駆動力を伝達する出力軸部材に曲げモーメントが作用しなくなり、ピニオンにクラウニングを形成する必要もなくなる。   In this cutter head drive device, when a plurality of rotation drive devices are rotationally driven, a plurality of pinions are rotationally driven, the rotational drive force is transmitted to the ring gear, the cutter head is rotationally driven, and the face is excavated by the cutter head. The Since each pinion is configured to be supported at both ends by a frame member included in the excavator main body, the pinion can be supported at both ends by effectively utilizing the frame member. Therefore, the bending moment does not act on the output shaft member that transmits the driving force from the rotary driving device of the rotary driving device to the pinion, and it is not necessary to form a crowning on the pinion.

請求項2のカッターヘッド駆動装置は、請求項1の発明において、前記各回転駆動機からピニオンへ回転駆動力を伝達する出力軸部材の前端部分が、前記ピニオンに分離可能に連結され、前記各ピニオンの前端軸部を回転自在に支持する前端軸受部材と、後端軸部を回転自在に支持する後端軸受部材とを、前記フレーム部材で直接支持するように構成したことを特徴としている。   According to a second aspect of the present invention, there is provided the cutter head driving device according to the first aspect, wherein a front end portion of an output shaft member that transmits a rotational driving force from each rotary driving machine to the pinion is detachably connected to the pinion, A front end bearing member that rotatably supports the front end shaft portion of the pinion and a rear end bearing member that rotatably supports the rear end shaft portion are configured to be directly supported by the frame member.

請求項3のカッターヘッド駆動装置は、請求項1又は2の発明において、前記出力軸部材が回転駆動機の出力部から分断された軸部材に構成され、この出力軸部材の後端部分が前記出力部に分離可能に連結されたことを特徴としている。   According to a third aspect of the present invention, there is provided the cutter head drive device according to the first or second aspect, wherein the output shaft member is configured as a shaft member separated from an output portion of the rotary drive, and the rear end portion of the output shaft member is the It is characterized in that it is separably connected to the output section.

請求項4のカッターヘッド駆動装置は、請求項2の発明において、前記回転駆動機は、駆動モータと駆動モータの回転駆動力を減速する減速機とを備え、前記フレーム部材は、前記リングギヤ及び複数のピニオンの内周側と外周側に配設された内周側フレームと外周側フレームとを有し、前記減速機のケース部材に挿通させた複数の連結部材であって前記減速機の軸心と平行な複数の連結部材により、前記回転駆動機を前記内周側フレーム及び外周側フレームの後端部に固定したことを特徴としている。   According to a fourth aspect of the present invention, there is provided the cutter head drive device according to the second aspect of the invention, wherein the rotary drive device includes a drive motor and a speed reducer that decelerates the rotational drive force of the drive motor, and the frame member includes the ring gear and a plurality of reduction gears. And a plurality of connecting members inserted through a case member of the speed reducer, the shaft center of the speed reducer having an inner peripheral side frame and an outer peripheral side frame disposed on an inner peripheral side and an outer peripheral side of the pinion The rotation driving machine is fixed to the rear end portions of the inner peripheral frame and the outer peripheral frame by a plurality of connecting members parallel to each other.

請求項5のカッターヘッド駆動装置は、請求項2の発明において、前記各ピニオンにおける後端軸受部材を保持する軸受保持部材であって、外径がピニオンの外径よりも大径の軸受保持部材を前記フレーム部材に設け、前記回転駆動機と出力軸部材とを取り外した状態において、前記軸受保持部材を後方へ取り外すことにより、前記ピニオンを後方へ取り外し可能に構成したことを特徴としている。   The cutter head driving device according to claim 5 is the bearing holding member for holding the rear end bearing member in each pinion according to the invention of claim 2, wherein the outer diameter is larger than the outer diameter of the pinion. Is provided on the frame member, and the pinion can be removed rearward by removing the bearing holding member rearward in a state where the rotary drive and the output shaft member are removed.

請求項6のカッターヘッド駆動装置は、請求項4の発明において、前記リングギヤと複数のピニオンと内周側フレームと外周側フレームとを含む駆動力伝達ユニットが構成されていることを特徴としている。   According to a sixth aspect of the present invention, there is provided the cutter head driving device according to the fourth aspect, wherein a driving force transmission unit including the ring gear, a plurality of pinions, an inner peripheral frame, and an outer peripheral frame is configured.

請求項1の発明によれば、各ピニオンをフレーム部材で直接両端支持するため、ピニオンに回転駆動力を伝達する出力軸部材に曲げモーメントが作用しなくなる。よって、出力軸部材を小径化することができる上、ピニオンにクラウニングを形成する必要がなくなるから、ピニオンと回転駆動機からなる回転駆動装置を小型化することができ、その製作費を低減でき、耐久性を高めることができる。   According to the first aspect of the present invention, since each pinion is directly supported at both ends by the frame member, no bending moment acts on the output shaft member that transmits the rotational driving force to the pinion. Therefore, the diameter of the output shaft member can be reduced, and since it is not necessary to form a crowning on the pinion, the rotary drive device composed of the pinion and the rotary drive machine can be reduced in size, and the production cost can be reduced, Durability can be increased.

しかも、ピニオンを掘削機本体に含まれるフレーム部材で両端支持する構造にしたため、回転駆動機のケース部材の構造が複雑化することがなく、前記フレーム部材を有効活用してピニオンを両端支持することができる上、回転駆動機のカバー部材の構造が複雑化せず、回転駆動機の出力部周辺のコンパクト化を図ることができる。   Moreover, since the pinion is supported at both ends by the frame member included in the excavator body, the structure of the case member of the rotary drive machine is not complicated, and the frame member is used effectively to support the pinion at both ends. In addition, the structure of the cover member of the rotary drive machine is not complicated, and the periphery of the output part of the rotary drive machine can be made compact.

請求項2の発明によれば、各回転駆動機からピニオンへ回転駆動力を伝達する出力軸部材の前端部分が、ピニオンに分離可能に連結されたため、回転駆動機を取り外すことで、ピニオンだけを交換・修理したり、回転駆動機だけを交換・修理したりすることが可能になった。しかも、トンネル掘削機の組み立て時、回転駆動装置のうちのピニオンだけを、予め掘削機本体側に組み込んでおくことで、カッターヘッド駆動装置の組み立て作業の作業能率を高めることができる。   According to the invention of claim 2, since the front end portion of the output shaft member that transmits the rotational driving force from each rotational driving machine to the pinion is detachably connected to the pinion, only the pinion is removed by removing the rotational driving machine. It became possible to replace and repair, or to replace and repair only the rotary drive. Moreover, at the time of assembling the tunnel excavator, only the pinion of the rotary drive device is incorporated in the excavator body side in advance, so that the work efficiency of the cutter head drive device assembly operation can be increased.

請求項3の発明によれば、前記出力軸部材が回転駆動機の出力部から分断された軸部材に構成され、この出力軸部材の後端部分が前記出力部に分離可能に連結されたため、出力軸部材だけを交換・修理することも可能になった。   According to the invention of claim 3, the output shaft member is configured as a shaft member separated from the output portion of the rotary drive machine, and the rear end portion of the output shaft member is detachably connected to the output portion. It is also possible to replace and repair only the output shaft member.

請求項4の発明によれば、前記減速機のケース部材に挿通させた複数の連結部材であって前記減速機の軸心と平行な複数の連結部材により、前記回転駆動機を前記内周側フレームの後端部と外周側フレームの後端部とに固定するため、駆動ユニットの取付け用フランジが不要となり、外形の小型化(コンパクト化)を図ることができる。   According to a fourth aspect of the present invention, the rotary drive machine is connected to the inner peripheral side by a plurality of connecting members inserted through the case member of the speed reducer and parallel to the axis of the speed reducer. Since it is fixed to the rear end portion of the frame and the rear end portion of the outer peripheral side frame, the mounting flange of the drive unit is not required, and the outer shape can be reduced in size (compact).

請求項5の発明によれば、軸受保持部材を後方へ取り外すことにより、前記ピニオンを後方へ取り外し可能に構成したため、ピニオンの交換やピニオンの周辺のメンテナンスが容易になる。   According to the fifth aspect of the present invention, the pinion can be removed rearward by removing the bearing holding member rearward, so that replacement of the pinion and maintenance around the pinion are facilitated.

請求項6の発明によれば、前記リングギヤと複数のピニオンと内周側フレームと外周側フレームとを含む駆動力伝達ユニットが構成されているため、掘削機本体とは別個に駆動力伝達ユニットを製作し、その駆動力伝達ユニットを掘削機本体に組み付けることも可能になるうえ、その駆動力伝達ユニットを使用済みのトンネル掘削機から取り外して別のトンネル掘削機に再利用することも可能になる。   According to the invention of claim 6, since the driving force transmission unit including the ring gear, the plurality of pinions, the inner peripheral frame and the outer peripheral frame is configured, the driving force transmission unit is provided separately from the excavator body. It is possible to manufacture and assemble the driving force transmission unit to the excavator body, and to remove the driving force transmission unit from the used tunnel excavator and reuse it for another tunnel excavator. .

本発明の実施例に係るトンネル掘削機の概略縦断面図である。1 is a schematic longitudinal sectional view of a tunnel excavator according to an embodiment of the present invention. 図1の矢印Aから視たトンネル掘削機の背面図である。It is a rear view of the tunnel excavator seen from the arrow A of FIG. カッターヘッド駆動装置の拡大断面図である。It is an expanded sectional view of a cutter head drive device. カッターヘッド駆動装置の駆動力伝達ユニットの拡大断面図である。It is an expanded sectional view of the driving force transmission unit of a cutter head drive device. 特許文献2のシールドマシンのカッタ駆動装置等の側断面図である。It is side sectional drawing of the cutter drive apparatus etc. of the shield machine of patent document 2. FIG. 先行技術に係る駆動ユニットの側面図である。It is a side view of the drive unit which concerns on a prior art.

以下、本発明を実施するための形態について実施例に基づいて説明する。   Hereinafter, modes for carrying out the present invention will be described based on examples.

本実施例に係るトンネル掘削機1は、一般的なシールド掘削機と同様のものであり、本実施例では、主として本発明に直接関係する構成について説明する。
図1〜図4に示すように、このトンネル掘削機1は、カッターヘッド2、カッターヘッド2の背面側のチャンバー3、このチャンバー3を仕切る隔壁3a、この隔壁3aを含む掘削機本体(図示略)、胴部材(前胴5のみ図示、後胴は図示略)、カッターヘッド2を回転駆動するためのカッターヘッド駆動装置4、複数のシールドジャッキ(図示略)、複数の中折れジャッキ(図示略)、掘削した土砂等を排出するスクリューコンベア式の排出装置6など有する。尚、スクリューコンベア式の排出装置6の代わりに泥水式の排出装置を設けてもよい。
The tunnel excavator 1 according to the present embodiment is the same as a general shield excavator, and in the present embodiment, a configuration directly related to the present invention will be mainly described.
As shown in FIGS. 1 to 4, the tunnel excavator 1 includes a cutter head 2, a chamber 3 on the back side of the cutter head 2, a partition 3 a that partitions the chamber 3, and an excavator body (not shown) including the partition 3 a. ), A body member (only the front cylinder 5 is shown, the rear cylinder is not shown), a cutter head driving device 4 for rotationally driving the cutter head 2, a plurality of shield jacks (not shown), and a plurality of half-folded jacks (not shown). ), And a screw conveyor type discharge device 6 for discharging excavated earth and sand. Instead of the screw conveyor type discharge device 6, a muddy water type discharge device may be provided.

前記カッターヘッド2は、複数のカッタースポーク2aと、これらカッタースポーク2aに装備された複数のローラーカッター(図示略)とを有する。但し、複数のローラーカッターに代えて複数のカッタービットを設けてもよい。複数のカッタースポーク2aは、ヘッド駆動装置4のリングギヤ30に固定されたリング部材33に連結部材22を介して連結され、カッターヘッド2はカッターヘッド駆動装置4により回転駆動される。   The cutter head 2 has a plurality of cutter spokes 2a and a plurality of roller cutters (not shown) equipped on the cutter spokes 2a. However, a plurality of cutter bits may be provided instead of the plurality of roller cutters. The plurality of cutter spokes 2 a are connected via a connecting member 22 to a ring member 33 fixed to the ring gear 30 of the head driving device 4, and the cutter head 2 is rotationally driven by the cutter head driving device 4.

掘削機本体は、前胴5を含む胴部材、カッターヘッド駆動装置4、排出装置6、複数のシールドジャッキ、複数の中折れジャッキなどが取り付けられた構造体であり、後述する内周側フレーム8と外周側フレーム9とを備えている。内周側フレーム8は、リングギヤ30と複数のピニオン35等の内周側に配設されている。外周側フレーム9は、リングギヤ30と複数のピニオン35等の外周側に配設されている。   The excavator body is a structure to which a body member including the front body 5, a cutter head driving device 4, a discharge device 6, a plurality of shield jacks, a plurality of bent jacks, and the like are attached. And an outer peripheral side frame 9. The inner peripheral side frame 8 is disposed on the inner peripheral side of the ring gear 30 and the plurality of pinions 35 and the like. The outer peripheral side frame 9 is disposed on the outer peripheral side of the ring gear 30 and the plurality of pinions 35 and the like.

前記カッターヘッド駆動装置4は、大径のリングギヤ30と、複数(本実施例では、6組)の回転駆動装置31とを備えている。リングギヤ30は、その軸心をトンネル掘削機1の軸心と一致するように隔壁3aの後方に配設され、リングギヤ30は内周部に内歯を有し、リングギヤ30は外周側フレーム9の内面に固定されたベアリング受け部材32に3組のローラベアリング30a,30b,30cを介して回転自在に支持されている。リングギヤ30の前端にはカッターヘッド2に連結されてカッターヘッド2に回転駆動力を伝達するリング部材33が複数のボルトにより固定されている。   The cutter head drive device 4 includes a large-diameter ring gear 30 and a plurality (six sets in this embodiment) of rotary drive devices 31. The ring gear 30 is disposed behind the partition wall 3 a so that its axis coincides with the axis of the tunnel excavator 1, the ring gear 30 has internal teeth on the inner periphery, and the ring gear 30 is formed on the outer frame 9. The bearing receiving member 32 fixed to the inner surface is rotatably supported via three sets of roller bearings 30a, 30b, 30c. A ring member 33 connected to the cutter head 2 and transmitting a rotational driving force to the cutter head 2 is fixed to the front end of the ring gear 30 by a plurality of bolts.

前記各回転駆動装置31は、リングギヤ30の内歯に噛合したピニオン35と、出力軸部材36を含む回転駆動機37とを有する。前記ピニオン35は1対の自動調心軸受38a,38bにより内周側フレーム8に両端支持されている。即ち、ピニオン35の前端軸部35aを支持する自動調心軸受38a(前端軸受部材)は、軸受支持板8aで支持されている。ピニオン35の後端軸部35bを支持する自動調心軸受38b(後端軸受部材)は、軸受支持板8bに貫通状に装着された軸受保持部材39で支持されている。この軸受保持部材39の外径はピニオン35の外径よりも大径であり、その後端部のフランジ部39aが複数のボルト40で軸受支持板8bに固定されている。   Each of the rotary drive devices 31 includes a pinion 35 meshed with the inner teeth of the ring gear 30 and a rotary drive 37 including an output shaft member 36. The pinion 35 is supported on both ends of the inner peripheral frame 8 by a pair of self-aligning bearings 38a and 38b. That is, the self-aligning bearing 38a (front end bearing member) that supports the front end shaft portion 35a of the pinion 35 is supported by the bearing support plate 8a. A self-aligning bearing 38b (rear end bearing member) that supports the rear end shaft portion 35b of the pinion 35 is supported by a bearing holding member 39 that is attached to the bearing support plate 8b in a penetrating manner. The outer diameter of the bearing holding member 39 is larger than the outer diameter of the pinion 35, and the flange portion 39 a at the rear end portion is fixed to the bearing support plate 8 b with a plurality of bolts 40.

前記回転駆動機37は、電動モータ41(駆動モータ)と、この電動モータ41からの回転駆動力を減速する減速機42と、この減速機42の出力部42aにスプライン結合機構を介して連結された出力軸部材36とを有する。この出力軸部材36は、電動モータ41及び減速機42からなる駆動部の回転駆動力をピニオン35へ伝達するものである。
出力軸部材36は、減速機42の出力部42aから分断された単独の軸部材に構成され、この出力軸部材36の前端部分と後端部分にスプライン軸部36a,36bが夫々形成され、前端側のスプライン軸部36aがピニオン35の後部のスプライン穴35cにスプライン結合にて連結され、後端側のスプライン軸部36bが減速機42の出力部42aに形成されたスプライン穴42bにスプライン結合にて連結されている。
つまり、出力軸部材36の前端部分が、スプライン穴35cとスプライン軸部36aとからなるスプライン結合機構を介してピニオン35に分離可能に連結され、出力軸部材36の後端部分が、スプライン穴42bとスプライン軸部36bとからなるスプライン結合機構を介して出力部42aに分離可能に連結されている。
The rotational drive unit 37 is connected to an electric motor 41 (drive motor), a speed reducer 42 that decelerates the rotational driving force from the electric motor 41, and an output portion 42a of the speed reducer 42 via a spline coupling mechanism. Output shaft member 36. The output shaft member 36 transmits the rotational driving force of the drive unit composed of the electric motor 41 and the speed reducer 42 to the pinion 35.
The output shaft member 36 is configured as a single shaft member separated from the output portion 42a of the speed reducer 42. Spline shaft portions 36a and 36b are formed on the front end portion and the rear end portion of the output shaft member 36, respectively. The spline shaft portion 36a on the side is connected to the rear spline hole 35c of the pinion 35 by spline connection, and the spline shaft portion 36b on the rear end side is connected to the spline hole 42b formed in the output portion 42a of the speed reducer 42 by spline connection. Are connected.
That is, the front end portion of the output shaft member 36 is detachably connected to the pinion 35 via the spline coupling mechanism including the spline hole 35c and the spline shaft portion 36a, and the rear end portion of the output shaft member 36 is connected to the spline hole 42b. And a spline shaft portion 36b through a spline coupling mechanism so as to be separable from the output portion 42a.

前記出力軸部材36を含む回転駆動機37を取り外した状態において、軸受保持部材39を後方へ取り外すことにより、ピニオン35が後方へ取り外し可能に構成されている。 回転駆動機37の取り付け構造に関して、前記減速機42のケース部材42cに挿通させた複数(例えば、12本)の通しボルト43(連結部材に相当する)であって減速機42の軸心と平行な複数の通しボルト43により、回転駆動機37を内周側フレーム8の後端部と外周側フレーム9の後端部に固定している。   In a state where the rotary drive machine 37 including the output shaft member 36 is removed, the pinion 35 is configured to be removable rearward by removing the bearing holding member 39 rearward. Regarding the mounting structure of the rotary drive 37, a plurality of (for example, 12) through bolts 43 (corresponding to connecting members) inserted through the case member 42 c of the speed reducer 42 and parallel to the axis of the speed reducer 42. A plurality of through bolts 43 fix the rotary drive machine 37 to the rear end portion of the inner peripheral side frame 8 and the rear end portion of the outer peripheral side frame 9.

図4に示すように、前記リング部材33とリングギヤ30と複数のピニオン35と内周側フレーム8と外周側フレーム9とを含む駆動力伝達ユニット45がユニット状に構成されている。この駆動力伝達ユニット45には、リングギヤ30と複数のピニオン35と複数の回転軸部材36を潤滑するオイルを収容するオイルバス46が形成されている。   As shown in FIG. 4, the driving force transmission unit 45 including the ring member 33, the ring gear 30, the plurality of pinions 35, the inner peripheral side frame 8, and the outer peripheral side frame 9 is configured in a unit shape. The driving force transmission unit 45 is formed with an oil bath 46 that contains oil for lubricating the ring gear 30, the plurality of pinions 35, and the plurality of rotating shaft members 36.

リング部材33の内周側と外周側にはグリースにて潤滑される軸受けシールが設けられ、内周側の軸受けシールの前端を塞ぐ環状閉鎖板53と外周側の軸受けシール52の前端を塞ぐ環状閉鎖板54とがリング部材33に固定されている。   Bearing seals lubricated with grease are provided on the inner peripheral side and the outer peripheral side of the ring member 33, and an annular closing plate 53 for closing the front end of the inner peripheral side bearing seal and an annular shape for closing the front end of the outer peripheral side bearing seal 52 are provided. A closing plate 54 is fixed to the ring member 33.

以上説明したトンネル掘削機1のカッターヘッド駆動装置4の作用、効果について説明する。トンネル掘削機1を工場において製作する際、駆動力伝達ユニット45を独立に製作するのと並行して、トンネル掘削機1のその他の部分を製作し、駆動力伝達ユニット45をユニットとして掘削機本体に組み付け、その駆動力伝達ユニット45に複数の回転駆動機37を組み付ける。このとき、まず複数の出力軸部材36を組み付け、その後減速機42及び電動モータ41を組み付ける。   The operation and effect of the cutter head driving device 4 of the tunnel excavator 1 described above will be described. When the tunnel excavator 1 is manufactured in the factory, the other part of the tunnel excavator 1 is manufactured in parallel with the manufacturing of the driving force transmission unit 45, and the excavator main body with the driving force transmission unit 45 as a unit. And a plurality of rotary driving machines 37 are assembled to the driving force transmission unit 45. At this time, first, the plurality of output shaft members 36 are assembled, and then the speed reducer 42 and the electric motor 41 are assembled.

駆動力伝達ユニット45を組み付けるとき、内周側フレーム8の環状フランジ10を隔壁3aに複数のボルト55で締結すると共に外周側フレーム9の筒状体9aの前端部を隔壁3aの開口穴に嵌めて溶接することにより、容易に組み付けることができる。尚、駆動力伝達ユニット45の外周側の筒状体9aを予め隔壁3aに溶接しておき、そこに筒状体9aを除いた駆動力伝達ユニット45を組み付けるようにしてもよい。   When the driving force transmission unit 45 is assembled, the annular flange 10 of the inner peripheral side frame 8 is fastened to the partition wall 3a with a plurality of bolts 55, and the front end of the cylindrical body 9a of the outer peripheral side frame 9 is fitted into the opening hole of the partition wall 3a. Can be assembled easily by welding. The cylindrical body 9a on the outer peripheral side of the driving force transmission unit 45 may be welded to the partition wall 3a in advance, and the driving force transmission unit 45 excluding the cylindrical body 9a may be assembled thereto.

出力軸部材36をピニオン35に連結する際には、スプライン軸36aをピニオン35のスプライン穴35aに挿入することにより、容易に組み付けることができる。一体的な減速機42及び電動モータ41(駆動部)を組み付ける際には、減速機42のケース部材42cに挿通させた複数の通しボルト43を内周側フレーム8及び外周側フレーム9のボルト穴16a,21aに螺合することにより容易に組み付けることができる。   When connecting the output shaft member 36 to the pinion 35, the spline shaft 36 a can be easily assembled by inserting it into the spline hole 35 a of the pinion 35. When assembling the integrated speed reducer 42 and electric motor 41 (drive unit), a plurality of through bolts 43 inserted into the case member 42c of the speed reducer 42 are bolt holes of the inner peripheral side frame 8 and the outer peripheral side frame 9. It can be easily assembled by screwing to 16a and 21a.

しかも、減速機42のケース部材42cを固定するために取付け用フランジを形成せずに、ケース部材42cに挿通させた複数の通しボルト43により固定する構造であるから、減速機42の外形を極力小さくして、所定のサイズのリングギヤ30に対応付けて設置可能な回転駆動装置31(ピニオン35と回転駆動機37)の設置数を増すことができ、カッターヘッド駆動装置4の駆動力を強化することができる。   In addition, since the mounting member is not formed to fix the case member 42c of the speed reducer 42, it is fixed by a plurality of through bolts 43 inserted into the case member 42c. The number of rotation drive devices 31 (pinions 35 and rotation drive devices 37) that can be installed in association with the ring gear 30 of a predetermined size can be increased and the driving force of the cutter head drive device 4 can be enhanced. be able to.

ピニオン35を内周側フレーム8で直接両端支持する構造にしたため、出力軸部材36に曲げモーメントが作用しない。そのため、出力軸部材36を小径化することができるうえ、ピニオン35にクラウニングを形成する必要がない。それ故、ピニオン35や出力軸部材36の製作費を低減し、回転駆動装置31をコンパクト化できると共にその耐久性を高めることができる。回転駆動機37の出力軸部材36の前端部分をピニオン35にスプライン結合するため、駆動力伝達ユニット45から回転駆動機37を分離した状態で、複数のピニオン35を組み込んだ駆動力伝達ユニット45を組み付け、その駆動力伝達ユニット45に複数の回転駆動機37を組み付けることができるため、駆動力伝達ユニット45と回転駆動機37の組み付け作業が容易になる。   Since the pinion 35 is directly supported by the inner peripheral side frame 8 at both ends, no bending moment acts on the output shaft member 36. Therefore, the diameter of the output shaft member 36 can be reduced, and it is not necessary to form a crowning on the pinion 35. Therefore, the manufacturing cost of the pinion 35 and the output shaft member 36 can be reduced, the rotary drive device 31 can be made compact, and its durability can be increased. In order to spline-couple the front end portion of the output shaft member 36 of the rotary drive 37 to the pinion 35, the drive force transmission unit 45 incorporating a plurality of pinions 35 is provided in a state where the rotary drive 37 is separated from the drive force transmission unit 45. Since the plurality of rotary drive units 37 can be assembled to the drive force transmission unit 45, the assembly operation of the drive force transmission unit 45 and the rotary drive unit 37 is facilitated.

しかも、出力軸部材36を回転駆動機37の出力部42a(減速機42の出力部)から分断された単独の軸部材に構成し、出力軸部材36の後端部分を減速機42の出力部42aにスプライン結合機構を介して連結するため、駆動力伝達ユニット45に対する減速機42及び電動モータ41の組み付け作業が簡単になる。   In addition, the output shaft member 36 is configured as a single shaft member separated from the output portion 42a (the output portion of the speed reducer 42) of the rotary drive 37, and the rear end portion of the output shaft member 36 is the output portion of the speed reducer 42. Since it connects with 42a via a spline coupling mechanism, the assembly | attachment work of the reduction gear 42 and the electric motor 41 with respect to the driving force transmission unit 45 becomes easy.

しかも、回転駆動装置31の何れかの構成部品が故障した場合に、ピニオン35、出力軸部材36、減速機42及び電動モータ41を夫々単独に交換したり、修理したりすることが可能になる。しかも、使用済みのトンネル掘削機1から駆動力伝達ユニット45を取り出して別のトンネル掘削機に再利用したり、複数の回転駆動装置31のみを取り出して別のトンネル掘削機に再利用したりすることもできる。   In addition, when any component of the rotary drive device 31 fails, the pinion 35, the output shaft member 36, the speed reducer 42, and the electric motor 41 can be replaced or repaired independently. . Moreover, the driving force transmission unit 45 is taken out from the used tunnel excavator 1 and reused for another tunnel excavator, or only the plurality of rotary drive devices 31 are taken out and reused for another tunnel excavator. You can also.

ピニオン35を掘削機本体側の内周側フレーム8で直接両端支持する構造にしたため、回転駆動機37のケース部材の構造が複雑化することがなく、内周側フレーム8を有効活用してピニオン35を支持できる。
しかも、内周側フレーム8と外周側フレーム9等でオイルバス46を形成し、リングギヤ30と複数のピニオン35と複数の回転軸部材36をオイルで潤滑し冷却することが可能になった。これにより、カッターヘッド駆動装置4の耐久性を高めることができる。また、軸受保持部材39を後方へ取り外し可能に構成したため、ピニオン35の交換やピニオン35の周辺のメンテナンスが容易になる。
Since the pinion 35 is directly supported by the inner peripheral side frame 8 on the excavator body side, the structure of the case member of the rotary drive 37 is not complicated, and the inner peripheral side frame 8 is effectively used to make the pinion. 35 can be supported.
In addition, the oil bus 46 is formed by the inner peripheral frame 8 and the outer peripheral frame 9, and the ring gear 30, the plurality of pinions 35, and the plurality of rotating shaft members 36 can be lubricated and cooled with oil. Thereby, durability of the cutter head drive device 4 can be improved. Further, since the bearing holding member 39 is configured to be removable rearward, the replacement of the pinion 35 and the maintenance of the periphery of the pinion 35 are facilitated.

次に、前記実施例を部分的に変更する例について説明する。
1)カッターヘッド駆動装置4において、電動モータ41及び減速機42の代わりに、油圧モータを適用してもよい。
2)回転駆動装置31の数は6組に限定されるものではなく、リングギヤ30の径や必要な回転駆動力に応じて適宜設置数を増減してもよい。
Next, an example in which the above embodiment is partially changed will be described.
1) In the cutter head driving device 4, a hydraulic motor may be applied instead of the electric motor 41 and the speed reducer 42.
2) The number of rotation driving devices 31 is not limited to six, and the number of rotation driving devices 31 may be increased or decreased as appropriate according to the diameter of the ring gear 30 and the required rotation driving force.

3)リングギヤ30に内歯を形成した例について説明したが、リングギヤ30に外歯を形成し、その外歯に複数のピニオン35を噛合させる構成にしてもよい。
4)前記実施例では、回転駆動機37を組み付けない状態で駆動力伝達ユニット45を掘削機本体に組み付ける場合を例にして説明したが、機外において駆動力伝達ユニット45に複数の回転駆動機37を予め組み付けた状態にしてから、それらを掘削機本体に組み付けることも可能である。
5)その他、本発明の趣旨を逸脱しない範囲で前記実施例に種々の変更を加えて実施可能であることは勿論である。
3) Although the example which formed the internal tooth in the ring gear 30 was demonstrated, you may make it the structure which forms an external tooth in the ring gear 30 and meshes the several pinion 35 with the external tooth.
4) In the above-described embodiment, the case where the driving force transmission unit 45 is assembled to the excavator main body without the rotation driving machine 37 being assembled has been described as an example. However, the driving force transmission unit 45 has a plurality of rotary driving machines outside the machine. It is also possible to assemble them into the excavator main body after the 37 is in a pre-assembled state.
5) In addition, it goes without saying that various modifications can be made to the above-described embodiment without departing from the spirit of the present invention.

本発明は、種々のトンネル掘削機のカッターヘッド駆動装置に利用することできる。   The present invention can be used for a cutter head driving device of various tunnel excavators.

1 トンネル掘削機
2 カッターヘッド
3 チャンバー
3a 隔壁
4 カッターヘッド駆動装置
8 内周側フレーム
9 外周側フレーム
30 リングギヤ
30a 前端軸部
30b 後端軸部
31 回転駆動装置
36 出力軸部材
37 回転駆動機
38a 自動調心軸受(前端軸受部材)
38b 自動調心軸受(後端軸受部材)
39 軸受保持部材
41 電動モータ(駆動モータ)
42 減速機
42a 出力部
42c ケース部材
43 通しボルト
45 駆動力伝達ユニット
DESCRIPTION OF SYMBOLS 1 Tunnel excavator 2 Cutter head 3 Chamber 3a Bulkhead 4 Cutter head drive device 8 Inner peripheral side frame 9 Outer peripheral side frame 30 Ring gear 30a Front end shaft part 30b Rear end shaft part 31 Rotation drive device 36 Output shaft member 37 Rotation drive machine 38a Automatic Aligning bearing (front end bearing member)
38b Self-aligning bearing (rear end bearing member)
39 Bearing holding member 41 Electric motor (drive motor)
42 Reduction gear 42a Output part 42c Case member 43 Through bolt 45 Driving force transmission unit

Claims (6)

トンネル掘削機の前端部に装備されるカッターヘッドを回転駆動するカッターヘッド駆動装置において、
前記カッターヘッドに回転力を伝達するリングギヤと、
前記リングギヤに噛合した複数のピニオンと、これらピニオンを夫々回転駆動する複数の回転駆動機とを有する複数の回転駆動装置とを備え、
前記各ピニオンを掘削機本体に含まれるフレーム部材で両端支持するように構成したことを特徴とするカッターヘッド駆動装置。
In the cutter head drive device that rotationally drives the cutter head equipped at the front end of the tunnel excavator,
A ring gear that transmits rotational force to the cutter head;
A plurality of pinion gears meshed with the ring gear, and a plurality of rotation driving devices each having a plurality of rotation driving devices for rotating and driving these pinions,
A cutter head driving device characterized in that each pinion is supported at both ends by a frame member included in an excavator body.
前記各回転駆動機からピニオンへ回転駆動力を伝達する出力軸部材の前端部分が、前記ピニオンに分離可能に連結され、
前記各ピニオンの前端軸部を回転自在に支持する前端軸受部材と、後端軸部を回転自在に支持する後端軸受部材とを、前記フレーム部材で直接支持するように構成したことを特徴とする請求項1に記載のカッターヘッド駆動装置。
The front end portion of the output shaft member that transmits the rotational driving force from each rotational driving machine to the pinion is detachably connected to the pinion,
A front end bearing member that rotatably supports a front end shaft portion of each pinion and a rear end bearing member that rotatably supports a rear end shaft portion are configured to be directly supported by the frame member. The cutter head drive device according to claim 1.
前記回転軸部材が回転駆動機の出力部から分断された軸部材に構成され、この回転軸部材の後端部分が前記出力部に分離可能に連結されたことを特徴とする請求項1又は2に記載のカッターヘッド駆動装置。   The rotary shaft member is configured as a shaft member separated from an output portion of a rotary drive machine, and a rear end portion of the rotary shaft member is detachably connected to the output portion. The cutter head drive device described in 1. 前記回転駆動機は、駆動モータと駆動モータの回転駆動力を減速する減速機とを備え、
前記フレーム部材は、前記リングギヤ及び複数のピニオンの内周側と外周側に配設された内周側フレームと外周側フレームとを有し、
前記減速機のケース部材に挿通させた複数の連結部材であって前記減速機の軸心と平行な複数の連結部材により、前記回転駆動機を前記内周側フレーム及び外周側フレームの後端部に固定したことを特徴とする請求項2に記載のカッターヘッド駆動装置。
The rotational drive machine includes a drive motor and a speed reducer that decelerates the rotational drive force of the drive motor,
The frame member has an inner peripheral frame and an outer peripheral frame disposed on the inner peripheral side and the outer peripheral side of the ring gear and the plurality of pinions,
A plurality of connecting members inserted through a case member of the speed reducer, and a plurality of connecting members parallel to the shaft center of the speed reducer, whereby the rotary drive device is rear end portions of the inner peripheral frame and the outer peripheral frame. The cutter head drive device according to claim 2, wherein the cutter head drive device is fixed to the cutter head.
前記各ピニオンにおける後端軸受部材を保持する軸受保持部材であって、外径がピニオンの外径よりも大径の軸受保持部材を前記フレーム部材に設け、
前記回転駆動機と出力軸部材とを取り外した状態において、前記軸受保持部材を後方へ取り外すことにより、前記ピニオンを後方へ取り外し可能に構成したことを特徴とする請求項2に記載のカッターヘッド駆動装置。
A bearing holding member for holding a rear end bearing member in each pinion, wherein the frame member is provided with a bearing holding member having an outer diameter larger than the outer diameter of the pinion,
3. The cutter head drive according to claim 2, wherein the pinion is detachable rearward by removing the bearing holding member rearward in a state where the rotary driving machine and the output shaft member are removed. apparatus.
前記リングギヤと複数のピニオンと内周側フレームと外周側フレームとを含む駆動力伝達ユニットが構成されたことを特徴とする請求項4に記載のカッターヘッド駆動装置。   The cutter head driving device according to claim 4, wherein a driving force transmission unit including the ring gear, a plurality of pinions, an inner peripheral frame, and an outer peripheral frame is configured.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104153785A (en) * 2014-07-11 2014-11-19 中铁工程装备集团有限公司 Variable parameter pressure balance shield tunneling machine cutter drive device
CN106150513A (en) * 2016-08-30 2016-11-23 中铁工程装备集团有限公司 A kind of shield body anti-rolling type rock tunnel(ling) machine
JP2021055294A (en) * 2019-09-27 2021-04-08 日立造船株式会社 Cutter head drive device and method for installing pinion of cutter head drive device
CN112922629A (en) * 2021-03-22 2021-06-08 安徽唐兴机械装备有限公司 Cutter head driving mechanism of push bench
CN113006812A (en) * 2021-03-19 2021-06-22 安徽唐兴机械装备有限公司 Driving device of push bench

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104153785A (en) * 2014-07-11 2014-11-19 中铁工程装备集团有限公司 Variable parameter pressure balance shield tunneling machine cutter drive device
CN106150513A (en) * 2016-08-30 2016-11-23 中铁工程装备集团有限公司 A kind of shield body anti-rolling type rock tunnel(ling) machine
JP2021055294A (en) * 2019-09-27 2021-04-08 日立造船株式会社 Cutter head drive device and method for installing pinion of cutter head drive device
JP7225071B2 (en) 2019-09-27 2023-02-20 地中空間開発株式会社 Cutter head drive and pinion mounting method for the cutter head drive
CN113006812A (en) * 2021-03-19 2021-06-22 安徽唐兴机械装备有限公司 Driving device of push bench
CN113006812B (en) * 2021-03-19 2024-02-06 安徽唐兴装备科技股份有限公司 Push bench driving device
CN112922629A (en) * 2021-03-22 2021-06-08 安徽唐兴机械装备有限公司 Cutter head driving mechanism of push bench
CN112922629B (en) * 2021-03-22 2022-12-27 安徽唐兴装备科技股份有限公司 Cutter head driving mechanism of push bench

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