JPH06221085A - Roller cutter - Google Patents

Roller cutter

Info

Publication number
JPH06221085A
JPH06221085A JP5304464A JP30446493A JPH06221085A JP H06221085 A JPH06221085 A JP H06221085A JP 5304464 A JP5304464 A JP 5304464A JP 30446493 A JP30446493 A JP 30446493A JP H06221085 A JPH06221085 A JP H06221085A
Authority
JP
Japan
Prior art keywords
cutter body
shaft member
pressure
cutter
seal
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
Application number
JP5304464A
Other languages
Japanese (ja)
Other versions
JP3089921B2 (en
Inventor
Satoshi Kodera
智 小寺
Akihiro Saburi
明弘 佐分利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Materials Corp
Original Assignee
Mitsubishi Materials Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Materials Corp filed Critical Mitsubishi Materials Corp
Priority to JP05304464A priority Critical patent/JP3089921B2/en
Publication of JPH06221085A publication Critical patent/JPH06221085A/en
Application granted granted Critical
Publication of JP3089921B2 publication Critical patent/JP3089921B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To provide a roller cutter in which the smooth rotation of a cutter main body can be maintained even if high external pressure is applied. CONSTITUTION:The top ends 11a and 11a of metal rings 11 and 11, which are fixed to the internal surfaces 1a and 1b of a cutter main body 1 on both sides of a seal 6, respectively, are bent in the direction that fills a clearance between the internal surfaces 1a and 1b of the cutter main body 1 and the external surfaces 3a and 3b of a shaft member 3, lips 12 and 12 are fixed to its top, and the top ends of the lips 12 and 12 are made in contact elastically with the external surfaces 3a and 3b. Also pressure-proof seals 10 and 10 are formed by the metal rings 11 and 11 and lips 12 and 12. The clearance between the internal surfaces 1a and 1b and external surfaces 3a and 3b is closed doubly by the pressure-proof seals 10 and 10. However, because the pressure-proof seals 10 and 10 are installed on both sides of the seal 6, the seal 6 is doubly sealed by the pressure-proof seals 10 and 10 from both sides of it.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、カッタ本体と、これを
回転自在に支持する軸部材とを有するローラーカッタに
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller cutter having a cutter body and a shaft member for rotatably supporting the cutter body.

【0002】[0002]

【従来の技術】ローラーカッタは、シールド掘削機等の
先端に装着され、岩盤等の掘削を行う掘削工具の一種
で、カッタ本体とこれを回転自在に支持する軸部材とを
有し、カッタ本体を岩盤等に接触させつつ回転させてこ
れを掘削するものである。ローラーカッタの一例を図3
に示す。
2. Description of the Related Art A roller cutter is a kind of excavation tool that is attached to the tip of a shield excavator or the like and excavates rock, and has a cutter body and a shaft member that rotatably supports the cutter body. This is excavated by rotating the rock while contacting it with rock. An example of a roller cutter is shown in FIG.
Shown in.

【0003】図3において、カッタ本体1は円筒状をな
し、その外周面には特殊合金鋼からなる円筒状をなすデ
ィスクリング2が環装されている。カッタ本体1には軸
部材3が同軸をなすように挿通され、カッタ本体1は、
軸部材3とカッタ本体1との間に設けられたテーパーロ
ーラ4を有するベアリング部5により、軸部材3に回転
自在に支持されている。
In FIG. 3, a cutter body 1 has a cylindrical shape, and a cylindrical disk ring 2 made of special alloy steel is attached to the outer peripheral surface thereof. The shaft member 3 is inserted into the cutter body 1 so as to be coaxial, and the cutter body 1 is
The shaft member 3 is rotatably supported by a bearing portion 5 having a tapered roller 4 provided between the shaft member 3 and the cutter body 1.

【0004】また、ベアリング部5の両側には、ベアリ
ング部5への異物の侵入を防止するシール部6が設けら
れている。図3の場合、シール部6には、軸部材3に環
装された一対の金属環7と、これら金属環7に径方向外
方から環装され、自らの弾性によりカッタ本体1の内周
面に押圧されたゴム製のリング8とから構成されてい
る。更に、シール部6は、軸部材3とカッタ本体1との
間に環装されたO−リング9により外部から遮断されて
いる。
Sealing portions 6 for preventing foreign matter from entering the bearing portion 5 are provided on both sides of the bearing portion 5. In the case of FIG. 3, a pair of metal rings 7 is attached to the shaft member 3 in the seal portion 6, and the metal rings 7 are attached to the metal ring 7 from the outside in the radial direction. It is composed of a rubber ring 8 pressed against the surface. Further, the seal portion 6 is shielded from the outside by an O-ring 9 which is mounted between the shaft member 3 and the cutter body 1.

【0005】[0005]

【発明が解決しようとする課題】ところで、上記従来の
ローラーカッタに取り付けられているO−リング9で
は、カッタ本体1が回転する必要上、O−リング9とカ
ッタ本体1および軸部材3との接触面積を少なくしてい
るため、外圧が2〜3Kg/cm2となると漏れが発じ
る場合がある。この漏れによりシール部6に到達した異
物がカッタ本体1の内周面または金属環7とリング8と
の間に挟まると、リング8の押圧力と自由度が低下して
シール部6でも漏れが生じ、ベアリング部5に侵入した
前記異物によりベアリング部5が機能不全となってカッ
タ本体1の円滑な回転が妨げられる。
By the way, in the O-ring 9 attached to the above-mentioned conventional roller cutter, since the cutter body 1 is required to rotate, the O-ring 9 and the cutter body 1 and the shaft member 3 are separated from each other. Since the contact area is small, leakage may occur when the external pressure reaches 2-3 Kg / cm 2 . If the foreign matter that has reached the seal portion 6 due to this leakage is caught between the inner peripheral surface of the cutter body 1 or the metal ring 7 and the ring 8, the pressing force of the ring 8 and the degree of freedom are reduced, and the seal portion 6 also leaks. The foreign matter that has been generated and has entered the bearing portion 5 causes the bearing portion 5 to malfunction and prevents the cutter body 1 from rotating smoothly.

【0006】しかしながら、掘削中、ローラーカッタに
は4Kg/cm2以上の外圧がかかる場合があるため、
上記従来のローラーカッタでは、掘削中、泥水等の異物
がベアリング部5に侵入してカッタ本体1が回転しなく
なり、ローラーカッタが使用不能となる恐れがあった。
However, during excavation, an external pressure of 4 kg / cm 2 or more may be applied to the roller cutter,
In the above-described conventional roller cutter, foreign matter such as muddy water may enter the bearing portion 5 during excavation, the cutter body 1 may not rotate, and the roller cutter may be unusable.

【0007】一方、O−リング9と軸部材3およびカッ
タ本体1との接触面積を増大させると、O−リング9の
耐圧性は向上するが、その半面、前記接触面積の増大に
伴う摩擦抵抗の増加により、軸部材3に対するカッタ本
体1の円滑な回転が妨げられるという問題があった。本
発明は上記事情に鑑みてなされたもので、カッタ本体1
の円滑な回転を妨げることなく、掘削中の外圧に伴うベ
アリング部5への異物の侵入を確実に阻止可能なローラ
ーカッタを提供することを目的としている。
On the other hand, when the contact area of the O-ring 9 with the shaft member 3 and the cutter body 1 is increased, the pressure resistance of the O-ring 9 is improved, but on the other hand, the frictional resistance accompanying the increase of the contact area is increased. There is a problem in that the smooth rotation of the cutter body 1 with respect to the shaft member 3 is hindered by the increase in The present invention has been made in view of the above circumstances, and the cutter body 1
It is an object of the present invention to provide a roller cutter that can reliably prevent foreign matter from entering the bearing portion 5 due to external pressure during excavation without hindering smooth rotation of the roller cutter.

【0008】[0008]

【課題を解決するための手段】本発明のローラカッタ
は、筒状をなすカッタ本体と、このカッタ本体と同軸を
なし、前記カッタ本体を回転自在に支持する軸部材と、
前記カッタ本体と前記軸部材との間に設けられたベアリ
ング部と、このベアリング部の両端側に設けられ、前記
ベアリング部を密封するシール部とを有し、特に、前記
シール部の両端側に、前記軸部材と前記カッタ本体の対
向面にて前記カッタ本体に前記カッタ本体と同軸をなす
よう固定された金属環と、この金属環に同軸をなすよう
固定され、かつその先端が外圧により前記軸部材に押圧
接触して前記軸部材と前記カッタ本体との間を閉鎖する
よう弾性変形自在とされた環状のリップ部とを有する耐
圧シールが設けられ、しかも、前記リップ部が、前記カ
ッタ本体と前記軸部材との間の複数箇所に設けられてい
ることをその特徴としている。
A roller cutter according to the present invention comprises a cutter body having a tubular shape, and a shaft member which is coaxial with the cutter body and which rotatably supports the cutter body.
A bearing portion provided between the cutter body and the shaft member, and seal portions provided on both end sides of the bearing portion for sealing the bearing portion, and particularly on both end sides of the seal portion. A metal ring fixed to the cutter body so as to be coaxial with the cutter body at an opposing surface of the shaft member and the cutter body; A pressure-resistant seal having an annular lip portion elastically deformable so as to close the space between the shaft member and the cutter body by pressingly contacting the shaft member is provided, and the lip portion is the cutter body. It is characterized in that it is provided at a plurality of positions between the shaft member and the shaft member.

【0009】[0009]

【作用】本発明のローラーカッタにおいては、シール部
の両側に、外圧により軸部材に押圧接触してこの軸部材
とカッタ本体との間を閉鎖するリップ部を有する耐圧シ
ールが設けられ、かつこのリップ部が、前記カッタ本体
と前記軸部材との間の複数箇所に設けられているので、
外圧が高い場合でも、ベアリング部への異物の侵入が確
実に阻止される。また、前記軸部材の外周面に対し前記
耐圧シールが前記リップ部の先端で接触するため前記軸
部材の外周面と前記リップ部との接触面積が小さくて済
む。従って、前記カッタ本体の回転中、前記耐圧シール
と前記軸部材の外周面との間に生じる摩擦抵抗も低下す
る。
In the roller cutter of the present invention, pressure-proof seals having lip portions for pressing the shaft member by external pressure to close the gap between the shaft member and the cutter body are provided on both sides of the seal portion. Since the lip portion is provided at a plurality of positions between the cutter body and the shaft member,
Even if the external pressure is high, foreign matter can be reliably prevented from entering the bearing portion. Further, since the pressure resistant seal contacts the outer peripheral surface of the shaft member at the tip of the lip portion, the contact area between the outer peripheral surface of the shaft member and the lip portion can be small. Therefore, during the rotation of the cutter body, the frictional resistance generated between the pressure resistant seal and the outer peripheral surface of the shaft member is also reduced.

【0010】[0010]

【実施例】以下、図面に基づき、本発明の実施例につい
て更に詳しく説明する。なお、以下の図において、上記
図3と類似の構成を有する部分には、同一の符号を付し
てその説明を省略する。
Embodiments of the present invention will now be described in more detail with reference to the drawings. Note that, in the following figures, parts having similar configurations to those in FIG. 3 are designated by the same reference numerals, and description thereof will be omitted.

【0011】図1は、本発明に係るローラーカッタの第
一実施例を示すローラーカッタのシール部6周辺の断面
図である。カッタ本体1の内周面1aは、シール部6の
両側にて軸部材3の外周面3aと対向し、かつ前記内周
面1aには金属環11が固定されている。金属環11の
先端部11aは前記内周面1aと軸部材3の外周面3a
との間の隙間を塞ぐ方向に屈曲し、かつこの先端部11
aには弾性を有する素材で形成された環状をなすリップ
部12の基端部が固定されている。また、このリップ部
12は漸次拡径しながらカッタ本体1の端面側に伸び、
その先端は前記先端部11aと対向する軸部材3の外周
面3aに弾性的に当接されている。そして、この金属環
11とリップ部12とから、耐圧シール10が構成され
ている。
FIG. 1 is a sectional view of the vicinity of a seal portion 6 of a roller cutter showing a first embodiment of the roller cutter according to the present invention. The inner peripheral surface 1a of the cutter body 1 faces the outer peripheral surface 3a of the shaft member 3 on both sides of the seal portion 6, and a metal ring 11 is fixed to the inner peripheral surface 1a. The tip portion 11a of the metal ring 11 has an inner peripheral surface 1a and an outer peripheral surface 3a of the shaft member 3.
Is bent in a direction to close the gap between
A base end portion of an annular lip portion 12 formed of an elastic material is fixed to a. Further, the lip portion 12 extends toward the end surface side of the cutter body 1 while gradually increasing the diameter,
The tip is elastically abutted on the outer peripheral surface 3a of the shaft member 3 facing the tip 11a. The metal ring 11 and the lip portion 12 constitute a pressure resistant seal 10.

【0012】しかも、本実施例のローラーカッタにおい
ては、符号1aで示すカッタ本体1の内周面および対向
する軸部材3の外周面3aの更に両側でも、カッタ本体
1の内周面1bと軸部材3の外周面3bとが対向してい
る。そして、前記内周面1bと前記外周面3b間の隙間
には、新たな耐圧シール10が、金属環11を前記内周
面1bに固定し、かつリップ部12の先端を前記外周面
3bに弾性的に当接させた状態で設けられている。
Moreover, in the roller cutter according to the present embodiment, the inner peripheral surface 1b of the cutter body 1 and the shaft are also provided on both sides of the inner peripheral surface of the cutter body 1 and the outer peripheral surface 3a of the shaft member 3 facing each other. The outer peripheral surface 3b of the member 3 faces. In the gap between the inner peripheral surface 1b and the outer peripheral surface 3b, a new pressure-resistant seal 10 fixes the metal ring 11 to the inner peripheral surface 1b, and the tip of the lip portion 12 to the outer peripheral surface 3b. It is provided in an elastically abutted state.

【0013】すなわち、カッタ本体1と軸部材3との間
の隙間はこれらの耐圧シール10,10(より具体的に
はそれぞれの耐圧シール10,10のリップ部12,1
2)により二重に閉塞されるが、これらの耐圧シール1
0,10はいずれもシール部6の両側に設けられている
ため、シール部6はこの耐圧シール10,10により、
その両側からそれぞれ二重に密封される。
That is, the gap between the cutter body 1 and the shaft member 3 is defined by the pressure resistant seals 10, 10 (more specifically, the lip portions 12, 1 of the pressure resistant seals 10, 10).
These are pressure-resistant seals 1 which are double blocked by 2).
Since 0 and 10 are provided on both sides of the seal portion 6, the seal portion 6 is
Double sealed from both sides.

【0014】カッタ本体1と軸部材3との間の隙間に外
圧が加わると、まず、外側(カッタ本体1の端面側:図
中右側)に位置する耐圧シール10のリップ部12が下
方に押圧される。すると、リップ部12の先端が前記外
周面3bに外側から弾性的に押圧密着され、その結果、
耐圧シール10の内側への異物の侵入が阻止される。し
かも、万が一外側に位置する耐圧シール10の内側への
異物の侵入を阻止し切れなかった場合でも、更なる耐圧
シール10が内側(図中左側)に位置しているため、シ
ール部6側への異物の侵入がこの耐圧シール10により
阻止される。
When external pressure is applied to the gap between the cutter body 1 and the shaft member 3, first, the lip portion 12 of the pressure-resistant seal 10 located on the outer side (the end face side of the cutter body 1: the right side in the drawing) is pressed downward. To be done. Then, the tip of the lip portion 12 is elastically pressed and closely contacted with the outer peripheral surface 3b from the outside, and as a result,
Foreign matter is prevented from entering the pressure-resistant seal 10. Moreover, even if the foreign matter cannot be prevented from entering the inside of the pressure-resistant seal 10 located on the outer side, the further pressure-resistant seal 10 is located on the inner side (left side in the drawing), and therefore, toward the seal portion 6 side. The pressure-resistant seal 10 prevents foreign matter from entering.

【0015】すなわち、本実施例の場合、カッタ本体1
と軸部材3との間の隙間に耐圧シール10,10を二重
に装備することにより、外圧が12Kg/cm2を越え
るような高圧となっても、ベアリング部5への異物の侵
入を確実に阻止することが可能となっている。
That is, in the case of this embodiment, the cutter body 1
By providing double pressure-proof seals 10 and 10 in the gap between the shaft member 3 and the shaft member 3, even if the external pressure exceeds 12 Kg / cm 2 , foreign matter can surely enter the bearing portion 5. It is possible to prevent it.

【0016】更に、耐圧シール10,10がそれぞれリ
ップ部12の先端でのみ前記外周面3a,3bと接触し
ているため、耐圧シール10,10と前記外周面3a,
3bとの接触面積が小さくて済む。従って、カッタ本体
1の回転中、耐圧シール10,10と前記外周面3a,
3bとの間に生じる摩擦抵抗も低くおさえられ、その結
果、耐圧シール10,10を設けても、カッタ本体1の
回転は何等妨げられることなく維持される。
Further, since the pressure resistant seals 10, 10 are in contact with the outer peripheral surfaces 3a, 3b only at the tips of the lip portions 12, respectively, the pressure resistant seals 10, 10 and the outer peripheral surface 3a, 3a, 3b, respectively.
The contact area with 3b is small. Therefore, during rotation of the cutter body 1, the pressure resistant seals 10, 10 and the outer peripheral surface 3a,
The frictional resistance generated between the cutter body 3 and 3b is also kept low, and as a result, the rotation of the cutter body 1 is maintained without any hindrance even if the pressure-resistant seals 10 and 10 are provided.

【0017】図2は、本発明の第二実施例を示すもので
ある。本実施例の場合、前記内周面1aに固定された金
属環11の先端部11aに固定されたリップ部12の他
に、先端部11aの外周側にあたる位置に、弾性を有す
る素材で形成された環状をなす更なるリップ部12aの
基端部が固定されている。このリップ部12aは、符号
12で示すリップ部同様漸次拡径しながらカッタ本体1
の端面側に伸び、その先端は前記外周面3aに弾性的に
当接されている。そして、この金属環11とリップ部1
2,12aとから、耐圧シール10が構成される。
FIG. 2 shows a second embodiment of the present invention. In the case of this embodiment, in addition to the lip portion 12 fixed to the tip portion 11a of the metal ring 11 fixed to the inner peripheral surface 1a, it is formed of an elastic material at a position corresponding to the outer peripheral side of the tip portion 11a. The proximal end of the further annular lip portion 12a is fixed. The lip portion 12a, like the lip portion indicated by reference numeral 12, gradually expands in diameter, while the cutter body 1
To the end surface side, and the tip end thereof is elastically abutted on the outer peripheral surface 3a. Then, the metal ring 11 and the lip portion 1
The pressure-resistant seal 10 is composed of 2, 12a.

【0018】すなわち、カッタ本体1と軸部材3との間
の隙間はこれらのリップ部12,12aにより二重に閉
塞されるが、これらのリップ部12,12aはシール部
6の両側に設けられているため、シール部6はこれらの
リップ部12,12aにより、その両側からそれぞれ二
重に密封される。その結果、本実施例の場合にも、上記
第一実施例と同様の効果が得られる。耐圧シール10と
シール部6との間に形成された空間13に予めグリース
等を注入しておけば、ベアリング部5への異物の侵入を
阻止する効果は更に大きくなる。
That is, the gap between the cutter body 1 and the shaft member 3 is doubly closed by these lip portions 12 and 12a, and these lip portions 12 and 12a are provided on both sides of the seal portion 6. Therefore, the seal portion 6 is doubly sealed from both sides thereof by these lip portions 12 and 12a. As a result, also in the case of this embodiment, the same effect as that of the first embodiment can be obtained. If grease or the like is injected into the space 13 formed between the pressure-proof seal 10 and the seal portion 6 in advance, the effect of preventing foreign matter from entering the bearing portion 5 is further enhanced.

【0019】また、上記第一実施例ではカッタ本体1と
軸部材3との間の隙間に耐圧シール10,10を二重に
装備することによりシール部6への異物の侵入を阻止し
ているが、必要に応じ、(耐圧シール10,10の両側
に新たな耐圧シール10を更に装備する等の方法によ
り)耐圧シール10をより多重に装備したり、または、
耐圧シール10,10の少なくとも一方に、符号12a
で示すリップ部を付加することにより、カッタ本体1と
軸部材3との間の隙間をこれらリップ部12,12aで
更に多重に閉塞することも可能である。この場合、ベア
リング部5への異物の侵入は更に強固に阻止される。
Further, in the first embodiment described above, the pressure-resistant seals 10 and 10 are double provided in the gap between the cutter body 1 and the shaft member 3 to prevent foreign matter from entering the seal portion 6. However, if necessary, the pressure-resistant seals 10 may be more multiply provided (by a method such as further equipping the pressure-resistant seals 10 with new pressure-resistant seals 10 on both sides), or,
At least one of the pressure-resistant seals 10 and 10 has a symbol 12a.
It is also possible to additionally close the gap between the cutter body 1 and the shaft member 3 with these lip portions 12 and 12a by adding the lip portion shown by. In this case, the intrusion of foreign matter into the bearing portion 5 is more firmly prevented.

【0020】[0020]

【発明の効果】以上説明した通り、本発明のローラーカ
ッタにおいては、カッタ本体の円滑な回転を妨げること
なく、ベアリング部を高い外圧から保護することが可能
である。よって、ローラーカッタを使用可能な外圧の範
囲が増大する。
As described above, in the roller cutter of the present invention, the bearing portion can be protected from a high external pressure without hindering the smooth rotation of the cutter body. Therefore, the range of external pressure in which the roller cutter can be used is increased.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に係るローラーカッタに用いられる耐圧
シールの第一実施例を示すローラーカッタの一部断面図
である。
FIG. 1 is a partial cross-sectional view of a roller cutter showing a first embodiment of a pressure-resistant seal used in the roller cutter according to the present invention.

【図2】本発明に係るローラーカッタに用いられる耐圧
シールの第二実施例を示すローラーカッタの一部断面図
である。
FIG. 2 is a partial cross-sectional view of a roller cutter showing a second embodiment of a pressure resistant seal used in the roller cutter according to the present invention.

【図3】従来のローラーカッタの構造を示す断面図であ
る。
FIG. 3 is a sectional view showing a structure of a conventional roller cutter.

【符号の説明】[Explanation of symbols]

1 カッタ本体 1a,1b カッタ本体の内周面 2 ディスクリング 3 軸部材 3a,3b 軸部材の外周面 4 テーパローラー 5 ベアリング部 6 シール部 7,11 金属環 8 リング 9 O−リング 10 耐圧シール 11a 金属環の先端部 12,12a リップ部 13 リップ部とシール部との間に形成された空間 1 Cutter main body 1a, 1b Inner peripheral surface of cutter main body 2 Disc ring 3 Shaft member 3a, 3b Outer peripheral surface of shaft member 4 Tapered roller 5 Bearing part 6 Seal part 7, 11 Metal ring 8 Ring 9 O-ring 10 Pressure resistant seal 11a Tip of metal ring 12, 12a Lip portion 13 Space formed between lip portion and seal portion

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 筒状をなすカッタ本体と、このカッタ本
体と同軸をなし、前記カッタ本体を回転自在に支持する
軸部材と、前記カッタ本体と前記軸部材との間に設けら
れたベアリング部と、このベアリング部の両端側に設け
られ、前記ベアリング部を密封するシール部とを有する
ローラーカッタにおいて、 前記シール部の両端側に、前記軸部材と前記カッタ本体
の対向面にて前記カッタ本体に前記カッタ本体と同軸を
なすよう固定された金属環と、この金属環に同軸をなす
よう固定され、かつその先端が外圧により前記軸部材に
押圧接触して前記軸部材と前記カッタ本体との間を閉鎖
するよう弾性変形自在とされた環状のリップ部とを有す
る耐圧シールが設けられ、しかも、前記リップ部が、前
記カッタ本体と前記軸部材との間の複数箇所に設けられ
ていることを特徴とするローラーカッタ。
1. A cylindrical cutter body, a shaft member which is coaxial with the cutter body and rotatably supports the cutter body, and a bearing portion provided between the cutter body and the shaft member. And a roller cutter that is provided at both ends of the bearing portion and has a seal portion that seals the bearing portion, wherein the cutter body is provided at both end sides of the seal portion at the facing surfaces of the shaft member and the cutter body. A metal ring fixed coaxially with the cutter body, and a metal ring fixed coaxially with the metal ring, and the tip of the metal ring is pressed and brought into contact with the shaft member by external pressure so that the shaft member and the cutter body are A pressure-resistant seal having an elastically deformable annular lip portion to close the space is provided, and the lip portion is provided at a plurality of positions between the cutter body and the shaft member. Roller cutter, characterized in that it has been kicked.
【請求項2】 前記耐圧シールが、前記シール部の両端
側に設けられた複数の前記金属環と、これら複数の金属
環にそれぞれ固定された前記リップ部とを有することを
特徴とする請求項1記載のローラーカッタ。
2. The pressure resistant seal has a plurality of the metal rings provided on both end sides of the seal portion, and the lip portions fixed to the plurality of metal rings, respectively. 1. The roller cutter according to 1.
【請求項3】 前記耐圧シールが、前記シール部の両端
側に設けられた前記金属環と、この金属環に固定された
複数の前記リップ部とを有することを特徴とする請求項
1または2記載のローラーカッタ。
3. The pressure-resistant seal comprises the metal ring provided on both end sides of the seal part and a plurality of the lip parts fixed to the metal ring. The described roller cutter.
JP05304464A 1992-12-04 1993-12-03 Roller cutter Expired - Fee Related JP3089921B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP05304464A JP3089921B2 (en) 1992-12-04 1993-12-03 Roller cutter

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP4-325816 1992-12-04
JP32581692 1992-12-04
JP05304464A JP3089921B2 (en) 1992-12-04 1993-12-03 Roller cutter

Publications (2)

Publication Number Publication Date
JPH06221085A true JPH06221085A (en) 1994-08-09
JP3089921B2 JP3089921B2 (en) 2000-09-18

Family

ID=26563918

Family Applications (1)

Application Number Title Priority Date Filing Date
JP05304464A Expired - Fee Related JP3089921B2 (en) 1992-12-04 1993-12-03 Roller cutter

Country Status (1)

Country Link
JP (1) JP3089921B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010540805A (en) * 2007-09-25 2010-12-24 キャタピラー インコーポレイテッド Rotating cutter for tunnel boring machine
JP2014505817A (en) * 2011-02-17 2014-03-06 ザ ロビンス カンパニー Cutter assembly for tunnel boring machine with pressure compensation
EP3385499A1 (en) * 2017-04-04 2018-10-10 Implenia Construction GmbH Rolling cutter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5317651B2 (en) * 2008-11-28 2013-10-16 株式会社小松製作所 Earth pressure propagation restraint ring body and its mounting structure, disc cutter and rolling device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010540805A (en) * 2007-09-25 2010-12-24 キャタピラー インコーポレイテッド Rotating cutter for tunnel boring machine
JP2014505817A (en) * 2011-02-17 2014-03-06 ザ ロビンス カンパニー Cutter assembly for tunnel boring machine with pressure compensation
EP3385499A1 (en) * 2017-04-04 2018-10-10 Implenia Construction GmbH Rolling cutter

Also Published As

Publication number Publication date
JP3089921B2 (en) 2000-09-18

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