JP2003205251A - Vertical roller mill - Google Patents
Vertical roller millInfo
- Publication number
- JP2003205251A JP2003205251A JP2002006094A JP2002006094A JP2003205251A JP 2003205251 A JP2003205251 A JP 2003205251A JP 2002006094 A JP2002006094 A JP 2002006094A JP 2002006094 A JP2002006094 A JP 2002006094A JP 2003205251 A JP2003205251 A JP 2003205251A
- Authority
- JP
- Japan
- Prior art keywords
- support
- inner ring
- jig
- supporting
- support shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Crushing And Grinding (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、竪型ローラミルに
関して特に竪型ローラミル上に押圧される粉砕ローラを
支持するアームと、ローラ加圧用油圧シリンダに連結さ
れる連結棒との取付け構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical roller mill, and more particularly to a mounting structure for an arm supporting a crushing roller pressed against a vertical roller mill and a connecting rod connected to a roller pressure hydraulic cylinder.
【０００２】[0002]
【従来の技術】典型的な先行技術は、たとえば本件出願
人による特許３，００７，８６４である。図１０は、こ
の先行技術の断面図である。竪型ローラミルのテーブル
上に押圧される粉砕ローラは、アーム１に回転自在に支
持され、このアーム１には、水平軸線まわりに角変位可
能とされ、ローラ加圧用油圧シリンダに連結された連結
棒２の一端部３がクレビス形式で球面すべり軸受４を介
して取付けられる。この軸受４によって、粉砕ローラと
アーム１との三次元の微揺動が共用される。球面すべり
軸受４の外輪５は、アーム１に設けられ、内輪６には連
結棒２の一端部３に設けられる支軸７が挿通する。2. Description of the Related Art A typical prior art is, for example, Japanese Patent No. 3,007,864 by the present applicant. FIG. 10 is a cross-sectional view of this prior art. A crushing roller pressed on the table of a vertical roller mill is rotatably supported by an arm 1. The arm 1 is angularly displaceable around a horizontal axis and is a connecting rod connected to a roller pressure hydraulic cylinder. One end 3 of 2 is attached via a spherical plain bearing 4 in the clevis form. By the bearing 4, the three-dimensional fine swing of the crushing roller and the arm 1 is shared. An outer ring 5 of the spherical plain bearing 4 is provided on the arm 1, and a support shaft 7 provided on one end 3 of the connecting rod 2 is inserted into the inner ring 6.
【０００３】図１０に示される球面すべり軸受４を有す
るアーム１と連結棒２の一端部３との取付け構造は、定
期的に保守点検される必要があり、その際、支軸７が図
１０の軸線方向に沿って抜き取られる。The mounting structure of the arm 1 having the spherical plain bearing 4 and the one end portion 3 of the connecting rod 2 shown in FIG. 10 needs to be regularly maintained and inspected. Is extracted along the axial direction of.
【０００４】図１１は、図１０に示される取付け構造に
おける支軸７を抜き取るためのメンテナンス方法を示す
断面図である。治具本体９を連結棒２の一端部３に着脱
可能に固定し、抜き取り用ねじ棒１１の一端部を、支軸
７に刻切されためねじ１２に螺合して取外し可能に固定
する。ねじ棒１１には、治具本体９の外方で、ナット部
材１３を螺合し、このナット部材１３を回転することに
よって支軸７をその軸線方向に図１１の左方に矢符１４
の方向に引張り、支軸７を抜き取る。FIG. 11 is a sectional view showing a maintenance method for removing the support shaft 7 in the mounting structure shown in FIG. The jig body 9 is detachably fixed to the one end 3 of the connecting rod 2, and one end of the extraction screw rod 11 is removably fixed by being screwed into the screw 12 because it is cut into the spindle 7. A nut member 13 is screwed onto the screw rod 11 outside the jig body 9 and the nut member 13 is rotated to move the support shaft 7 in the axial direction to the left in FIG.
And pull out the support shaft 7.
【０００５】図１２は、図１１に示される支軸７を抜き
取るときの状態を示す拡大断面図である。球面すべり軸
受４の外輪５は、凹球面１５を有し、内輪６は、この凹
球面１５にすべり接触する凸球面１６を有する。支軸７
に抜き取りのために矢符１４の方向に引張り力が作用す
ると、凹球面１５と凸球面１６とのくさび作用によって
内輪６には半径方向内方に向う矢符１７で示されるくさ
び力が作用する。したがって内輪６の内面が支軸７の外
周面に押付けられる。このようなくさび作用によって、
内輪６を挿通する支軸７を抜き取る作業が困難になる。
また内輪６の内周面と支軸７の外周面との間に被粉砕物
である、たとえばセメントクリンカなどが噛込み、この
ことによってもまた支軸７の抜き取りが困難になる。FIG. 12 is an enlarged sectional view showing a state where the support shaft 7 shown in FIG. 11 is pulled out. The outer ring 5 of the spherical plain bearing 4 has a concave spherical surface 15, and the inner ring 6 has a convex spherical surface 16 in sliding contact with the concave spherical surface 15. Support shaft 7
When a pulling force acts in the direction of the arrow 14 for pulling out, the wedge action of the concave spherical surface 15 and the convex spherical surface 16 causes the wedge force indicated by the arrow 17 directed inward in the radial direction to act on the inner ring 6. . Therefore, the inner surface of the inner ring 6 is pressed against the outer peripheral surface of the support shaft 7. With this wedge effect,
It becomes difficult to remove the support shaft 7 through which the inner ring 6 is inserted.
Further, a material to be crushed, such as a cement clinker, is caught between the inner peripheral surface of the inner ring 6 and the outer peripheral surface of the support shaft 7, which also makes it difficult to remove the support shaft 7.
【０００６】先行技術では、支軸７の抜き取りが困難に
なった場合、支軸７を、大量のドライアイスを用いて冷
却し、支軸７の外径を縮小し、これによって支軸７の抜
き取りを可能にする。このような作業は多くの動力を必
要とする。他の先行技術では、支軸７をガス溶断し、こ
のような先行技術では、支軸７を再使用することはでき
なくなってしまう。[0006] In the prior art, when it becomes difficult to extract the support shaft 7, the support shaft 7 is cooled with a large amount of dry ice to reduce the outer diameter of the support shaft 7, whereby the support shaft 7 is cooled. Allows extraction. Such work requires a lot of power. In other prior arts, the spindle 7 is blown out by gas, and in such a prior art, the spindle 7 cannot be reused.
【０００７】[0007]
【発明が解決しようとする課題】本発明の目的は、竪型
ローラミルのテーブル上に押圧される粉砕ローラを支持
するためのアームと、ローラ加圧用油圧シリンダが引張
る連結棒の一端部との取付け構造のメンテナンスを容易
にすることができるようにした竪型ローラミルを提供す
ることであり、さらにそのメンテナンス用治具を提供
し、またメンテナンス用治具を用いる竪型ローラミルの
メンテナンス方法を提供することである。SUMMARY OF THE INVENTION An object of the present invention is to attach an arm for supporting a crushing roller pressed against a table of a vertical roller mill and one end of a connecting rod pulled by a roller pressure hydraulic cylinder. To provide a vertical roller mill capable of facilitating structure maintenance, to further provide a jig for the maintenance, and to provide a maintenance method for the vertical roller mill using the maintenance jig. Is.
【０００８】本発明の他の目的は、第１部材と第２部材
とを球面すべり軸受を介して連結する構造のメンテナン
スの容易性を図った連結装置を提供し、その連結装置の
メンテナンスのために用いられるメンテナンス用治具を
提供し、さらにそのメンテナンス用治具を用いたメンテ
ナンス方法を提供することである。Another object of the present invention is to provide a connecting device for facilitating maintenance of a structure for connecting a first member and a second member via a spherical plain bearing, and for maintaining the connecting device. It is an object of the present invention to provide a maintenance jig used for the above, and further provide a maintenance method using the maintenance jig.
【０００９】[0009]
【課題を解決するための手段】請求項１記載の本発明
は、鉛直軸線まわりに回転駆動されるテーブルと、テー
ブル上の被粉砕物を、テーブルとの間で粉砕する粉砕ロ
ーラと、水平軸線まわりに角変位可能に設けられ、粉砕
ローラを回転自在に支持するアームと、アームに、球面
すべり軸受を介して、クレビス形式で一端部が連結され
る連結棒と、連結棒を引張って粉砕ローラをテーブル上
に加圧するローラ加圧用油圧シリンダとを含む竪型ロー
ラミルにおいて、（ａ）球面すべり軸受は、アームに設
けられる外輪と、外輪と球面で接触する内輪とを有し、
（ｂ）支軸であって、内輪を挿通して内輪を支持する内
輪支持部と、この内輪支持部に関して支軸の軸線方向両
側にそれぞれ延び、内輪支持部の外径以下の外径を有す
る支持端部とを有する支軸と、（ｃ）一対の支持カバー
部材であって、各支持カバー部材は、支軸の支持端部を
囲み、内輪の軸線方向端面に当接する位置決め用端部を
有し、連結棒の前記一端部を挿通する位置決め保持部
と、位置決め保持部の内輪とは反対側の端部に連なり、
連結棒の前記一端部の外側部に固定される取付け部とを
有し、少なくとも一方の支持カバー部材の取付け部は、
連結棒の前記一端部の外側部に、取外し可能である支持
カバー部材とを含むことを特徴とする竪型ローラミルで
ある。According to the present invention, a table driven to rotate about a vertical axis, a crushing roller for crushing an object to be crushed on the table between the table and a horizontal axis. An arm that is angularly displaceable around and that rotatably supports the crushing roller, a connecting rod whose one end is connected to the arm in a clevis form via a spherical plain bearing, and a crushing roller that pulls the connecting rod. In a vertical roller mill including a roller pressurizing hydraulic cylinder for pressurizing the table, (a) the spherical plain bearing has an outer ring provided on the arm and an inner ring that makes spherical contact with the outer ring,
(B) An inner ring support portion that is a support shaft and supports the inner ring by inserting the inner ring, and an outer diameter that is less than the outer diameter of the inner ring support portion and that extends on both sides in the axial direction of the support shaft with respect to the inner ring support portion. A support shaft having a support end portion, and (c) a pair of support cover members, each support cover member surrounding a support end portion of the support shaft and having a positioning end portion abutting on an axial end surface of the inner ring. A positioning holding portion that has the one end portion of the connecting rod inserted therein, and is connected to an end portion of the positioning holding portion opposite to the inner ring,
A mounting portion fixed to an outer portion of the one end portion of the connecting rod, the mounting portion of at least one of the support cover member,
The vertical roller mill is characterized in that it includes a removable support cover member on the outer side of the one end of the connecting rod.
【００１０】本発明に従えば、テーブルが鉛直軸線まわ
りに回転駆動され、アームに支持された粉砕ローラが、
そのアームに連結される連結棒を介してローラ加圧用油
圧シリンダによって引張られることによって、粉砕ロー
ラがテーブルに向けて押圧され、セメントクリンカなど
の被粉砕物がテーブルと粉砕ローラとの間で圧砕され
る。球面すべり軸受けの外輪および内輪のいずれか一方
は、凹球面であり、いずれか他方は、凸球面であり、こ
れら凹球面と凸球面とがすべり接触する。これによって
被粉砕物圧砕時において、粉砕ローラは、３次元の微揺
動を許容することができる。According to the present invention, the table is driven to rotate about the vertical axis, and the crushing roller supported by the arm is
The crushing roller is pressed against the table by being pulled by the roller pressing hydraulic cylinder via the connecting rod connected to the arm, and the crushed object such as cement clinker is crushed between the table and the crushing roller. It One of the outer ring and the inner ring of the spherical sliding bearing is a concave spherical surface, and the other is a convex spherical surface, and the concave spherical surface and the convex spherical surface make sliding contact. This allows the crushing roller to allow three-dimensional fine rocking when the crushed object is crushed.
【００１１】球面すべり軸受の外輪はアームに設けられ
る。支軸の内輪支持部は、内輪を挿通して支持し、この
支軸の軸線方向両側の支持端部は、連結棒のクレビス形
式の一端部を挿通し、一対の各支持カバー部材の位置決
め保持部を介して支持される。位置決め保持部は、内輪
の軸線方向端面に当接して内輪円が軸線方向に変位する
ことを防いで位置決めする。The outer ring of the spherical plain bearing is provided on the arm. The inner ring support part of the support shaft inserts and supports the inner ring, and the support ends on both sides in the axial direction of the support shaft insert one end of the clevis type of the connecting rod to hold the pair of support cover members in position. Supported through the section. The positioning holding portion contacts the axial end surface of the inner ring to prevent the inner ring circle from being displaced in the axial direction for positioning.
【００１２】支持カバー部材の取付け部は、連結棒の前
記一端部の外側部に固定され、少なくとも一方の取付け
部は、連結棒の前記一端部の外側部に、取外し可能であ
る。The mounting portion of the support cover member is fixed to the outer portion of the one end of the connecting rod, and at least one of the mounting portions is removable from the outer portion of the one end of the connecting rod.
【００１３】取外し可能な前記一方の支持カバー部材を
連結棒の前記一端部から取外し、支軸を、その取外した
前記一方の支持カバー部材側から抜き取る。このとき、
球面すべり軸受の内輪が支軸の抜き取り方向に変位しな
いように、たとえば後述のメンテナンス用治具の抜き取
り保持部を用いて内輪の軸線方向の変位を阻止する。こ
れによって先行技術に関連して前述したくさび作用が発
揮されず、内輪から支軸を円滑に抜き取ることができる
ようになる。The one removable support cover member is removed from the one end of the connecting rod, and the support shaft is pulled out from the removed one support cover member side. At this time,
In order to prevent the inner ring of the spherical plain bearing from being displaced in the pull-out direction of the support shaft, for example, a pull-out holding portion of a maintenance jig described later is used to prevent the inner ring from being displaced in the axial direction. As a result, the wedge action described above in relation to the prior art is not exerted, and the support shaft can be smoothly extracted from the inner ring.
【００１４】支持カバー部材には、被粉砕物が、球面す
べり軸受に入込むことを防ぎ、このことによってもま
た、支軸の抜き取りが容易になる。The support cover member prevents the material to be crushed from entering the spherical plain bearing, which also facilitates the removal of the support shaft.
【００１５】請求項２記載の本発明は、前記取外し可能
な一方の支持カバー部材によって囲まれる一方の前記支
持端部の端面に、取外し用めねじが刻設されることを特
徴とする。The present invention according to claim 2 is characterized in that a female screw for detaching is engraved on an end face of one of the supporting end portions surrounded by the one detachable supporting cover member.
【００１６】請求項３記載の本発明は、他方の支持カバ
ー部材によって囲まれる他方の支持端部の端面に、支持
端部固定用めねじが刻設され、支持端部固定用めねじ
に、その支持端部固定用めねじが刻設された他方の支持
端部を囲む他方の支持カバー部材の取付け部を挿通する
支持端部固定用ボルトが、取外し可能に螺合して、前記
他方の支持端部と前記他方の取付け部とが固定されるこ
とを特徴とする。According to a third aspect of the present invention, a female screw for fixing a supporting end portion is engraved on an end surface of the other supporting end portion surrounded by the other supporting cover member, and the female screw for fixing the supporting end portion, A supporting end fixing bolt that penetrates the mounting portion of the other supporting cover member that surrounds the other supporting end on which the supporting end fixing female screw is engraved is detachably screwed to the other supporting end fixing bolt. It is characterized in that the support end portion and the other mounting portion are fixed.
【００１７】請求項４記載の本発明は、取外し用めねじ
と、支持端部固定用めねじとは、支軸の軸線上に、軸線
をそれぞれ有し、前記支持端部固定用ボルトが、螺合可
能であることを特徴とする。According to a fourth aspect of the present invention, the female screw for detachment and the female screw for fixing the supporting end portion each have an axis on the axis of the support shaft, and the bolt for fixing the supporting end portion is It is characterized by being screwable.
【００１８】支軸には、少なくとも取外し可能な一方の
支持カバー部材によって囲まれる支持端部の端面に、取
外し用めねじが刻設され、これによって後述のメンテナ
ンス用治具の抜き取り用ねじ棒の一端部との取外し可能
な固定が容易である。他方の支持端部には、支持端部固
定用めねじが刻設され、竪型ローラミルの運転時、ボル
トによって他方の支持カバー部材が取外し可能に固定さ
れる。これらの取外し用めねじと支持端部固定用めねじ
とは、前記支持端部固定用ボルトが螺合可能とされ、す
なわち取外し用めねじと支持端部固定用めねじとはその
ねじの構成を同一形状とし、これによって支持端部固定
用ボルトと抜き取り用ねじ棒との取付け／取外し作業が
簡素化される。A female screw for removal is engraved on an end face of a support end portion surrounded by at least one removable support cover member on the spindle, whereby a screw rod for extraction of a maintenance jig described later is formed. It is easily removable and fixed to one end. A female screw for fixing the supporting end is engraved on the other supporting end, and the other supporting cover member is detachably fixed by a bolt during operation of the vertical roller mill. The removing female screw and the supporting end fixing female screw are screwable with the supporting end fixing bolt, that is, the removing female screw and the supporting end fixing female screw have a structure of the screw. Have the same shape, which simplifies the work of mounting / removing the support end fixing bolt and the extracting screw rod.
【００１９】請求項５記載の本発明は、前記竪型ローラ
ミルのメンテナンス用治具であって、（ａ）治具本体で
あって、前記一方の支持カバー部材が配置される連結棒
の前記一端部に着脱可能に固定され、前記一方の支持端
部を、内輪支持部が内輪から支軸の軸線方向に抜き取ら
れた状態で、前記一方の支持端部を収納する収納空間を
有する治具本体と、（ｂ）治具本体に固定され、前記一
方の支持端部を囲み、内輪の軸線方向端面に当接する遊
端部を有する抜き取り保持部と、（ｃ）一端部は取外し
用めねじに取外し可能に螺合する抜き取り用ねじ棒と、
（ｄ）ナット部材であって、ねじ棒にそのねじ棒の他端
部寄りで螺合し、ねじ棒の軸線方向に沿う支軸側への治
具本体との相対的な変位が阻止されて回転可能に設けら
れるナット部材とを含むことを特徴とする竪型ローラミ
ルのメンテナンス用治具である。According to a fifth aspect of the present invention, there is provided a jig for maintenance of the vertical roller mill, comprising: (a) a jig body, wherein the one end of the connecting rod on which the one support cover member is arranged. Main body having a storage space that is detachably fixed to the one portion and has one of the support ends that stores the one support end in a state where the inner ring support part is pulled out from the inner ring in the axial direction of the support shaft. And (b) a pull-out holding part that is fixed to the jig body, surrounds the one support end, and has a free end part that abuts the axial end face of the inner ring, and (c) one end part is a female screw for removal. With a screw rod for extraction that is detachably screwed,
(D) A nut member, which is screwed onto a threaded rod near the other end of the threaded rod and prevents relative displacement of the threaded rod to the spindle side along the axial direction of the jig body. A jig for maintenance of a vertical roller mill, comprising a rotatably provided nut member.
【００２０】請求項６記載の本発明は、抜き取り用ねじ
棒の前記他端部には、スパナ掛合部が形成され、ナット
部材にも、スパナ掛合部が形成されることを特徴とす
る。According to a sixth aspect of the present invention, a wrench engaging portion is formed on the other end of the extraction screw rod, and a wrench engaging portion is also formed on the nut member.
【００２１】請求項７記載の本発明は、前記メンテナン
ス用治具を準備し、前記一方の支持カバー部材を取外
し、治具本体を、連結棒の前記一端部に固定するととも
に、前記抜き取り保持部の遊端部を内輪の軸線方向の端
面に対向させ、ねじ棒の一端部を、取外し用めねじに螺
合し、ねじ棒に螺合したナット部材を回転して、治具本
体によってねじ棒の軸線方向の反力を受けながら、前記
抜き取り保持部の遊端部が内輪の軸線方向の端面に当接
した状態で、ねじ棒とともに支軸を、抜き取ることを特
徴とする竪型ローラミルのメンテナンス方法である。According to a seventh aspect of the present invention, the maintenance jig is prepared, the one support cover member is removed, the jig body is fixed to the one end of the connecting rod, and the extraction holding portion is provided. With the free end of the inner ring facing the axial end face of the inner ring, one end of the threaded rod screwed into the female screw for removal, and the nut member screwed into the threaded rod is rotated. Maintenance of the vertical roller mill characterized in that, while receiving the reaction force in the axial direction of the above, the support shaft is pulled out together with the screw rod in the state where the free end portion of the extraction holding portion is in contact with the axial end surface of the inner ring. Is the way.
【００２２】本発明に従えば、支軸を抜き取るメンテナ
ンス作業を開始するにあたり先ず、前記一方の支持カバ
ー部材を取外し、治具本体に固定されている抜き取り保
持部を、取外した前記一方の支持カバー部材の位置決め
保持部が存在していた空間に挿入し、抜き取り保持部の
遊端部を、内輪の軸線方向端面に対向させた状態とし、
治具本体、したがって抜き取り保持部を、連結棒の前記
一端部に取外し可能に固定する。ねじ棒の一端部は、支
軸の前記一方の支持端部の端面に形成された取外し用め
ねじに取外し可能に螺合して取付ける。そこで、ねじ棒
にナット部材を螺合してナット部材を回転し、治具本体
によってねじ棒の反力を受け、これによってねじ棒とと
もに支軸を、抜き取る。このとき抜き取り保持部の遊端
部は、内輪の軸線方向の端面に当接した状態に保たれる
ので、内輪が、支軸の抜き取り時に、その抜き取り方向
に変位することはない。したがって先行技術に関連して
述べたくさび作用が生じることはなく、支軸を円滑に抜
き取ることができる。According to the present invention, when the maintenance work for extracting the support shaft is started, first, the one support cover member is removed, and the extraction holding portion fixed to the jig body is removed. The member is inserted into the space in which the positioning holding portion was present, and the free end portion of the pullout holding portion is made to face the axial end surface of the inner ring,
The jig body, and hence the extraction holding portion, is detachably fixed to the one end of the connecting rod. One end of the threaded rod is detachably screwed and attached to a female screw for removal formed on the end surface of the one support end of the spindle. Therefore, the nut member is screwed into the screw rod to rotate the nut member, and the jig body receives the reaction force of the screw rod, whereby the spindle and the spindle are pulled out. At this time, the free end portion of the extraction holding portion is kept in contact with the axial end surface of the inner ring, so that the inner ring is not displaced in the extraction direction when the support shaft is extracted. Therefore, the wedge action described in connection with the prior art does not occur, and the spindle can be smoothly extracted.
【００２３】請求項８記載の本発明は、第１部材と、ク
レビス形式の第２部材とが、球面すべり軸受を介して連
結され、（ａ）球面すべり軸受は、第１部材に設けられ
る外輪と、外輪と球面で接触する内輪とを有し、（ｂ）
支軸であって、内輪を挿通して内輪を支持する内輪支持
部と、この内輪支持部に関して支軸の軸線方向両側にそ
れぞれ延び、内輪支持部の外径以下の外径を有する支持
端部とを有する支軸と、（ｃ）一対の支持カバー部材で
あって、各支持カバー部材は、支軸の支持端部を囲み、
内輪の軸線方向端面に当接する位置決め用端部を有し、
第２部材を挿通する位置決め保持部と、位置決め保持部
の内輪とは反対側の端部に連なり、第２部材の外側部に
固定される取付け部とを有し、少なくとも一方の支持カ
バー部材の取付け部は、第２部材の外側部に、取外し可
能である支持カバー部材とを含むことを特徴とする連結
装置である。According to the present invention of claim 8, the first member and the clevis-type second member are connected via a spherical plain bearing, and (a) the spherical plain bearing is an outer ring provided on the first member. And an inner ring that makes spherical contact with the outer ring, (b)
An inner ring support part that is a support shaft and supports the inner ring by inserting the inner ring, and support ends that extend on both sides in the axial direction of the support shaft with respect to the inner ring support part and that have an outer diameter that is less than or equal to the outer diameter of the inner ring support part. And (c) a pair of support cover members, each support cover member surrounding a support end of the support shaft,
It has a positioning end portion that comes into contact with the axial end surface of the inner ring,
At least one of the support cover members has a positioning holding portion through which the second member is inserted, and a mounting portion that is connected to an end portion of the positioning holding portion opposite to the inner ring and is fixed to an outer portion of the second member. The attachment part is a connecting device characterized in that the attachment part includes a detachable support cover member on an outer side part of the second member.
【００２４】請求項９記載の本発明は、前記連結装置の
メンテナンス用治具であって、（ａ）治具本体であっ
て、前記一方の支持カバー部材が配置される第２部材に
着脱可能に固定され、前記一方の支持端部を、内輪支持
部が内輪から支軸の軸線方向に抜き取られた状態で、前
記一方の支持端部を収納する収納空間を有する治具本体
と、（ｂ）治具本体に固定され、前記一方の支持端部を
囲み、内輪の軸線方向端面に当接する遊端部を有する抜
き取り保持部と、（ｃ）一端部は取外し用めねじに取外
し可能に螺合する抜き取り用ねじ棒と、（ｄ）ナット部
材であって、ねじ棒にそのねじ棒の他端部寄りで螺合
し、ねじ棒の軸線方向に沿う支軸側への治具本体との相
対的な変位が阻止されて回転可能に設けられるナット部
材とを含むことを特徴とする連結装置のメンテナンス用
治具である。According to a ninth aspect of the present invention, there is provided a jig for maintenance of the coupling device, which is (a) a jig body, which is attachable to and detachable from a second member on which the one supporting cover member is arranged. A jig body having a storage space for storing the one support end in a state where the one support end is pulled out in the axial direction of the support shaft from the inner ring. ) A pull-out holding portion that is fixed to the jig body, surrounds the one supporting end portion, and has a free end portion that comes into contact with the axial end surface of the inner ring, and (c) one end portion is detachably screwed into a female screw A threaded rod for extraction and a (d) nut member, which is screwed to the threaded rod near the other end of the threaded rod, and is connected to the jig main body on the spindle side along the axial direction of the threaded rod. And a nut member rotatably provided so that relative displacement is prevented. A maintenance jig of the coupling device to be.
【００２５】請求項１０記載の本発明は、前記メンテナ
ンス用治具を準備し、前記一方の支持カバー部材を取外
し、治具本体を、第２部材に固定するとともに、前記抜
き取り保持部の遊端部を内輪の軸線方向の端面に対向さ
せ、ねじ棒の一端部を、取外し用めねじに螺合し、ねじ
棒に螺合したナット部材を回転して、治具本体によって
ねじ棒の軸線方向の反力を受けながら、前記抜き取り保
持部の遊端部が内輪の軸線方向の端面に当接した状態
で、ねじ棒とともに支軸を、抜き取ることを特徴とする
連結装置のメンテナンス方法である。According to a tenth aspect of the present invention, the maintenance jig is prepared, the one support cover member is removed, the jig body is fixed to the second member, and the free end of the extraction holding portion is fixed. Part facing the axial end face of the inner ring, one end of the screw rod is screwed into the female screw for removal, the nut member screwed into the screw rod is rotated, and the jig body moves in the axial direction of the screw rod. In the maintenance method of the coupling device, the support shaft is pulled out together with the screw rod in a state where the free end portion of the extraction holding portion is in contact with the axial end surface of the inner ring while receiving the reaction force of.
【００２６】本発明に従えば、竪型ローラミルのそのほ
かの部分において、さらに竪型ローラミル以外の多くの
技術分野において、本発明を実施することができる。第
１部材は、たとえば前述の竪型ローラミルにおけるアー
ムであってもよく、第２部材は、たとえば前述の竪型ロ
ーラミルの連結棒の一端部であってもよい。こうして第
１部材と第２部材とを球面すべり軸受を介して連結する
装置において、支軸の抜き取りを容易に確実に行うこと
が可能になり、メンテナンスが容易になる。According to the invention, the invention can be implemented in other parts of the vertical roller mill and in many technical fields other than the vertical roller mill. The first member may be, for example, an arm in the vertical roller mill described above, and the second member may be, for example, one end of a connecting rod of the vertical roller mill described above. Thus, in the device that connects the first member and the second member via the spherical plain bearing, the support shaft can be easily and surely extracted, and the maintenance is facilitated.
【００２７】[0027]
【発明の実施の形態】図１は、本発明の実施の一形態の
一部の連結構造２１を示す断面図である。この連結構造
２１は、竪型ローラミル２２に含まれる。1 is a sectional view showing a part of a connecting structure 21 according to an embodiment of the present invention. The connecting structure 21 is included in a vertical roller mill 22.
【００２８】図２は、竪型ローラミル２２の一部を切欠
いて示す断面図である。ハウジング２３内で鉛直軸線２
４まわりに回転駆動されるテーブル２５には、セメント
クリンカなどの被粉砕物２６が供給シュート２７から供
給され、粉砕ローラ２８との間で粉砕され、粉砕された
被粉砕物２６は、テーブル２５とハウジング２３との隙
間から排出シュート２９を経て排出される。テーブル２
５は、モータ３１によって減速機３２を介して回転駆動
される。FIG. 2 is a sectional view showing a vertical roller mill 22 with a part cut away. Vertical axis 2 in housing 23
An object to be crushed 26 such as a cement clinker is supplied from a supply chute 27 to a table 25 which is rotationally driven around 4, and is crushed between a crushing roller 28 and a crushed object 26. It is discharged from the gap with the housing 23 through the discharge chute 29. Table 2
The motor 5 is rotationally driven by a motor 31 via a speed reducer 32.
【００２９】粉砕ローラ２８は、回転自在にアーム３３
に支持される。このアーム３３は、水平軸線を有するア
ーム軸３４によって支持体３５に角変位可能に設けられ
る。アーム３３には、連結構造２１によって連結棒３６
の一端部３７が連結される。連結棒３６の他端部は、ロ
ーラ加圧用油圧シリンダ３８によって引張られ、これに
よって粉砕ローラ２８はテーブル２５上に加圧される。
ローラ加圧用油圧シリンダ３８は、シリンダ軸３９によ
って固定位置に連結される。The crushing roller 28 is rotatably supported by an arm 33.
Supported by. This arm 33 is angularly displaceable on a support 35 by an arm shaft 34 having a horizontal axis. A connecting rod 36 is attached to the arm 33 by the connecting structure 21.
One end 37 of the is connected. The other end of the connecting rod 36 is pulled by a roller pressing hydraulic cylinder 38, whereby the crushing roller 28 is pressed onto the table 25.
The roller pressing hydraulic cylinder 38 is connected to a fixed position by a cylinder shaft 39.
【００３０】図３は、アーム３３付近の構成を拡大して
示す図である。粉砕ローラ２８は、アーム３３に取付け
られたローラ軸４１に回転自在に支持される。FIG. 3 is an enlarged view of the structure near the arm 33. The crushing roller 28 is rotatably supported by a roller shaft 41 attached to the arm 33.
【００３１】図４は、図２における竪型ローラミル２２
の左方から見た簡略化した図である。アーム３３には、
ローラ軸４１に関して左右対称に、一対の連結構造２１
によって各連結棒３６の一端部３７が、前述のように連
結される。これらの各連結棒３６の他端部は、一対のロ
ーラ加圧用油圧シリンダ３８によってそれぞれ引張られ
る。FIG. 4 is a vertical roller mill 22 shown in FIG.
FIG. 4 is a simplified view as seen from the left side of FIG. The arm 33 has
The pair of connecting structures 21 are symmetrical with respect to the roller shaft 41.
Thus, one end 37 of each connecting rod 36 is connected as described above. The other end of each of the connecting rods 36 is pulled by a pair of roller pressing hydraulic cylinders 38.
【００３２】再び図１を参照して、アーム３３に連結構
造２１によって連結される連結棒３６の一端部３７は、
クレビス形式で構成され、個別的に参照符３７ａ，３７
ｂで示される。アーム３３には球面すべり軸受４２によ
って支軸４３が３次元で微揺動可能に支持される。支軸
４３の軸線は、参照符４４で示される。Referring again to FIG. 1, one end 37 of the connecting rod 36 connected to the arm 33 by the connecting structure 21 is
It is constructed in the clevis form, and the reference numerals 37a, 37 are individually provided.
Indicated by b. A support shaft 43 is supported on the arm 33 by a spherical slide bearing 42 so as to be slightly swingable in three dimensions. The axis line of the support shaft 43 is indicated by reference numeral 44.
【００３３】球面すべり軸受４２は、アーム３３に設け
られる外輪４５と、支軸４３に支持される内輪４６とを
有する。外輪４５は、アーム３３の突部４７と、ボルト
４８によって取付けられる取付け片４９とによって、軸
線４４方向の変位が阻止されて固定される。外輪４５に
は、凹球面５１が形成され、内輪４６の凸球面５２がす
べり面接触する。The spherical plain bearing 42 has an outer ring 45 provided on the arm 33 and an inner ring 46 supported by the support shaft 43. The outer ring 45 is fixed by the protrusion 47 of the arm 33 and the attachment piece 49 attached by the bolt 48 so that the displacement in the direction of the axis 44 is prevented. A concave spherical surface 51 is formed on the outer ring 45, and the convex spherical surface 52 of the inner ring 46 makes sliding contact.
【００３４】支軸４３は、内輪４６を挿通する内輪支持
部５３と、この内輪支持部５３に関して支軸４３の軸線
４４方向両側にそれぞれ延びる一対の支持端部５４ａ，
５４ｂ（総括的に参照符５４で示すことがある）とを有
する。支持端部５４は、内輪支持部５３の外径以下の外
径を有する。The support shaft 43 has an inner ring support portion 53 through which the inner ring 46 is inserted, and a pair of support end portions 54a extending on both sides of the inner ring support portion 53 in the axis line 44 direction of the support shaft 43.
54b (generally indicated by reference numeral 54). The support end portion 54 has an outer diameter equal to or smaller than the outer diameter of the inner ring support portion 53.
【００３５】支軸４３の各支持端部５４ａ，５４ｂに関
連して一対の支持カバー部材５６，５７が設けられる。
各支持カバー部材５６，５７は、位置決め保持部５８，
５９と、取付け部６１，６２とを有する。位置決め保持
部５８，５９は、支持端部５４ａ，５４ｂをそれぞれ囲
む円筒状に形成され、内輪４６の軸線方向端面６３，６
４に対向して当接することができる位置決め用端部６
５，６６を有する。これらの位置決め保持部５８，５９
は、連結棒３６の一端部３７ａ，３７ｂをそれぞれ挿通
して支持される。A pair of support cover members 56 and 57 are provided in association with the respective support ends 54a and 54b of the support shaft 43.
Each of the support cover members 56, 57 includes a positioning holding portion 58,
59 and mounting portions 61 and 62. The positioning holding portions 58 and 59 are formed in a cylindrical shape surrounding the support end portions 54a and 54b, respectively, and the axial end surfaces 63 and 6 of the inner ring 46 are formed.
Positioning end 6 which can abut against 4
5, 66. These positioning holding parts 58, 59
Are supported by inserting one ends 37a and 37b of the connecting rod 36, respectively.
【００３６】取付け部６１，６２は、位置決め保持部５
８，５９の内輪４６とは反対側（図１の左方および図１
の右方）の端部に連なり、円板状に形成され、支持端部
５４ａ，５４ｂを塞ぎ、セメントクリンカなどの被粉砕
物が球面すべり軸受４２に入り込むことを防ぐ。取付け
部６１，６２の外向き鍔は、取外し可能なボルト６７，
６８によって前記一端部５４ａ，５４ｂの外側部に固定
される。これによって少なくとも一方の支持カバー部材
５６は、連結棒３６の一端部３７ａの外側部に、取外し
可能である。The mounting portions 61 and 62 are the positioning holding portion 5
8, 59 opposite to the inner ring 46 (left of FIG. 1 and FIG.
(To the right of the), which is formed into a disk shape and closes the support ends 54a and 54b, and prevents crushed objects such as cement clinker from entering the spherical plain bearing 42. The outward facing flanges of the mounting portions 61 and 62 have removable bolts 67,
It is fixed to the outside of the one ends 54a and 54b by 68. As a result, at least one of the support cover members 56 can be detached from the outer portion of the one end portion 37a of the connecting rod 36.
【００３７】取外し可能な一方の支持カバー部材５６に
よって囲まれる一方の支持端部５４ａの端面に臨んで、
取外し用めねじ６９が刻設される。他方の支持カバー部
材５７によって囲まれる他方の支持端部５４ｂの端面に
臨んで、支持端部固定用めねじ７１が刻設される。この
支持端部固定用めねじ７１は、取外し用めねじ６９と同
一形状を有し、軸線４４上に軸線を有する。支持端部固
定用ボルト７２は、支持端部固定用めねじ７１に、支持
カバー部材５７の取付け部６２に形成された遊通孔７３
を挿通し、取外し可能に螺合する。この支持端部固定用
ボルト７２は、本件竪型ローラミル２２の運転時、支持
端部５４ｂと取付け部６２、したがって支持カバー部材
５７とが固定される。取外し用めねじ６９にも、支持端
部固定用ボルト７２が螺合可能である。When facing the end face of the one support end portion 54a surrounded by the one removable support cover member 56,
A female screw 69 for removal is engraved. A female screw 71 for fixing the support end portion is engraved so as to face the end surface of the other support end portion 54b surrounded by the other support cover member 57. The female screw 71 for fixing the supporting end has the same shape as the female screw 69 for removal, and has an axis on the axis 44. The support end fixing bolt 72 includes a support end fixing female screw 71 and a through hole 73 formed in the mounting portion 62 of the support cover member 57.
Through and screw it on so that it can be removed. The support end portion fixing bolt 72 fixes the support end portion 54b and the mounting portion 62, and thus the support cover member 57, during operation of the vertical roller mill 22 of the present case. The support end fixing bolt 72 can be screwed into the female screw 69 for removal.
【００３８】図５は、支軸４３を球面すべり軸受４２の
内輪４６から抜き取る作業を説明するためのメンテナン
ス用治具７４を示す断面図である。メンテナンス用治具
７４は基本的に、治具本体７５と、この治具本体７５に
固定される抜き取り保持部７６と、抜き取り用ねじ棒７
７と、ナット部材７８とを含む。FIG. 5 is a sectional view showing a maintenance jig 74 for explaining the work of extracting the support shaft 43 from the inner ring 46 of the spherical plain bearing 42. The maintenance jig 74 basically includes a jig main body 75, an extraction holding portion 76 fixed to the jig main body 75, and an extraction screw rod 7.
7 and a nut member 78.
【００３９】図６は、メンテナンス用治具７４の分解斜
視図である。治具本体７５の円板状取付け部材７９に
は、複数のボルト８１が挿通し、連結棒３６の一端部３
７ａの外側部に臨むねじ孔８２に取外し可能に螺合し、
これによって治具本体７５が一端部３７ａに着脱可能に
固定される。この治具本体７５は、一方の支持端部５４
ａを内輪支持部５３が内輪４６から支軸４３の軸線４４
方向に図１および図５の左方に抜き取られた状態で、一
方の支持端部５４ａを収納する収納空間８３を有する棒
状体８４を有する。この棒状体８４は、取付け部材７９
に固定され、リブ８５によって補強される。FIG. 6 is an exploded perspective view of the maintenance jig 74. A plurality of bolts 81 are inserted into the disc-shaped mounting member 79 of the jig body 75, and the one end portion 3 of the connecting rod 36 is inserted.
7a is detachably screwed into a screw hole 82 facing the outer side of 7a,
As a result, the jig body 75 is detachably fixed to the one end portion 37a. This jig main body 75 has one support end portion 54.
a is the inner ring support portion 53 from the inner ring 46 to the axis 44 of the support shaft 43.
1 and 5, the rod-shaped body 84 having a storage space 83 for storing the one support end portion 54a is extracted in the left direction in FIGS. The rod-shaped member 84 is attached to the mounting member 79.
And is reinforced by ribs 85.
【００４０】抜き取り保持部７６は、治具本体７４の取
付け部材７９に棒状体８４とは反対側（図５および図６
の右方）に延びて固定される。この抜き取り保持部７６
は、図１に示される支持カバー部材５６が取外された状
態で、一方の支持端部５４ａを囲んで挿入される。抜き
取り保持部７６は、直円筒状に形成される。この抜き取
り保持部７６の遊端部８７は、メンテナンス用治具７４
がボルト８１によって連結棒３６の一端部３７ａに固定
された状態で、内輪４６の軸線４４方向端面６３に対向
して当接することができる。The extraction holding portion 76 is attached to the attachment member 79 of the jig body 74 on the side opposite to the rod-shaped body 84 (see FIGS. 5 and 6).
To the right of) and fixed. This extraction holding portion 76
Is inserted while surrounding one support end 54a with the support cover member 56 shown in FIG. 1 removed. The sampling holder 76 is formed in a right cylindrical shape. The free end portion 87 of the extraction holding portion 76 is provided with the maintenance jig 74.
While being fixed to the one end portion 37a of the connecting rod 36 by the bolt 81, it can face and abut the end surface 63 of the inner ring 46 in the direction of the axis 44.
【００４１】抜き取り用ねじ棒７７の一端部８８は、取
外し用めねじ６９に取外し可能に螺合することができ
る。この抜き取り用ねじ棒７７は、支軸４３の軸線４４
と同一直線状に軸線を有し、治具本体７５に形成された
遊通孔８９を緩やかに挿通し、その他端部寄りでナット
部材７８に螺合する。ナット部材７８は、治具本体７５
の棒状８４の外面に当接し、治具本体７５との軸線４４
方向の相対的な変位が阻止されて回転可能である。抜き
取り用ねじ棒７７の他端部には、スパナ掛合部９２が形
成される。ナット部材７８にもまた、スパナ掛合部が形
成される。したがってねじ棒７７のスパナ掛合部９２
に、作業者はスパナ９３を掛合することができ、またナ
ット部材７８のスパナ掛合部にスパナ９４を掛合するこ
とができる。One end 88 of the extraction screw rod 77 can be detachably screwed to the female screw 69 for removal. This withdrawal screw rod 77 is provided with the axis line 44 of the support shaft 43.
It has an axis line in the same straight line and is loosely inserted through the through hole 89 formed in the jig main body 75, and is screwed into the nut member 78 near the other end. The nut member 78 is the jig body 75.
Abutting the outer surface of the rod shape 84 of the
Relative displacement in the directions is prevented, and rotation is possible. A spanner engaging portion 92 is formed at the other end of the extracting screw rod 77. A spanner engaging portion is also formed on the nut member 78. Therefore, the spanner engaging portion 92 of the screw rod 77
In addition, the worker can engage the spanner 93, and can engage the spanner 94 with the spanner engaging portion of the nut member 78.
【００４２】図７は、メンテナンス用治具７４の抜き取
り保持部７６の遊端部８７が内輪４６の端面６３に当接
している状態を示す拡大断面図である。FIG. 7 is an enlarged sectional view showing a state in which the free end portion 87 of the pull-out holding portion 76 of the maintenance jig 74 is in contact with the end surface 63 of the inner ring 46.
【００４３】図８は、連結構造２１のメンテナンス作業
の手順を示すフローチャートである。竪型ローラミル２
２の運転を停止した状態で先ず、ステップｓ１において
一方の支持カバー部材５６のボルト６７を連結棒３６の
一端部３７ａから取外す。このとき他方の支持カバー部
材５７と支持端部５４ｂとを固定する支持端部固定用ボ
ルト７２も取外す。FIG. 8 is a flow chart showing the procedure of the maintenance work of the connecting structure 21. Vertical roller mill 2
With the operation of No. 2 stopped, first, in step s1, the bolt 67 of the one support cover member 56 is removed from the one end 37a of the connecting rod 36. At this time, the support end fixing bolt 72 for fixing the other support cover member 57 and the support end 54b is also removed.
【００４４】次にステップｓ２において前記一方の支持
カバー部材５６を取外す。ステップｓ３では、メンテナ
ンス用治具７４の治具本体７５および抜き取り保持部７
６を、ボルト８１によって連結棒３６の一端部３７ａに
取外し可能に固定する。ステップｓ４では、ねじ棒７７
を、メンテナンス用治具７４の遊通孔８９に挿入する。
ステップｓ５では、ねじ棒７７の一端部８８を、支持端
部５４ａの取外し用めねじ６９に螺合してスパナ９３を
用いて取付ける。ステップｓ６では、図６に示されるス
パナ９４を用い、ナット７８を回転し、このとき治具本
体７５の棒状体８４によって、ねじ棒７７の軸線方向の
反力を受ける。こうしてナット７８を回転操作すること
によって、抜き取り保持部７６の遊端部８７が内輪４６
の端面６３に当接して内輪４６の軸線方向の変位が阻止
された状態で、支軸４３が図５の参照符９５で示される
ように、棒状体８４の収納空間８３内に引張り出されて
収納される。こうして支軸４３の内輪支持部５３が内輪
４６の内周面から抜き取られる。Next, in step s2, the one support cover member 56 is removed. In step s3, the jig main body 75 of the maintenance jig 74 and the pull-out holding portion 7
6 is detachably fixed to the one end 37a of the connecting rod 36 by a bolt 81. In step s4, the screw rod 77
Is inserted into the through hole 89 of the maintenance jig 74.
In step s5, the one end 88 of the threaded rod 77 is screwed onto the female screw 69 for removal of the support end 54a and is attached using the spanner 93. In step s6, the nut 78 is rotated using the spanner 94 shown in FIG. 6, and at this time, the rod-shaped body 84 of the jig body 75 receives the reaction force in the axial direction of the screw rod 77. By rotating the nut 78 in this manner, the free end portion 87 of the pull-out holding portion 76 is moved to the inner ring 46.
5, the support shaft 43 is pulled out into the accommodating space 83 of the rod-shaped body 84 as indicated by reference numeral 95 in FIG. It is stored. In this way, the inner ring support portion 53 of the support shaft 43 is pulled out from the inner peripheral surface of the inner ring 46.
【００４５】図９は、本発明の実施の他の形態のメンテ
ナンス用治具９８を構成する治具本体９６と抜き取り用
保持部９７とを示す斜視図である。この実施の形態は、
前述の実施の形態に類似し、対応する部分には同一の参
照符を付す。この実施の形態では、抜き取り用保持部９
７は、支持端部５４ａを半径方向外方で囲み、周方向に
分断されて軸線４４に沿って細長く延びる。このような
構成もまた、本発明の精神に含まれる。FIG. 9 is a perspective view showing a jig main body 96 and an extraction holding portion 97 which constitute a maintenance jig 98 according to another embodiment of the present invention. In this embodiment,
Similar to the above-described embodiment, corresponding parts are designated by the same reference numerals. In this embodiment, the extraction holding portion 9
7 surrounds the support end 54a radially outward, is divided in the circumferential direction, and extends in a slender shape along the axis 44. Such a configuration is also included in the spirit of the present invention.
【００４６】[0046]
【発明の効果】本発明によれば、テーブル上に押圧され
る粉砕ローラを支持するアームを、ローラ加圧用油圧シ
リンダによって引張られる連結棒へのクレビス形式の一
端部に、球面すべり軸受を介して連結して粉砕ローラと
アームとの三次元の微揺動を許容し、この球面すべり軸
受の内輪を挿通する支軸を、その支軸の抜き取り時、内
輪が抜き取り方向に変位することを阻止することによっ
て、円滑に支軸の抜き取り作業を行うことができる。こ
れによって支軸は、抜き取り作業時、損傷することがな
く、再使用することができる。またこのような支軸の抜
き取り作業に用いられるメンテナンス用治具は比較的簡
単な構成を有し、そのメンテナンス方法の実施における
作業性が良好である。According to the present invention, the arm supporting the crushing roller pressed against the table is connected to the clevis-type end to the connecting rod pulled by the roller pressure hydraulic cylinder via the spherical plain bearing. Allows three-dimensional fine swing between the grinding roller and the arm by connecting them, and prevents the inner ring of this spherical plain bearing from displacing in the pulling direction when the support shaft is pulled out. By doing so, it is possible to smoothly extract the support shaft. As a result, the spindle can be reused without being damaged during extraction work. Further, the maintenance jig used for such work of extracting the support shaft has a relatively simple structure, and has good workability in carrying out the maintenance method.
【００４７】さらに本発明は、竪型ローラミルだけでな
く、そのほかの多くの分野において、第１部材と第２部
材とを球面すべり軸受で連結する構成に関連して、広範
囲に実施することができる。Further, the present invention can be widely applied not only in the vertical roller mill but also in many other fields in connection with the structure in which the first member and the second member are connected by the spherical plain bearing. .
【図１】本発明の実施の一形態の一部の連結構造２１を
示す断面図である。FIG. 1 is a cross-sectional view showing a part of a connecting structure 21 according to an embodiment of the present invention.
【図２】竪型ローラミル２２の一部を切欠いて示す断面
図である。FIG. 2 is a sectional view showing a vertical roller mill 22 with a part cut away.
【図３】アーム３３付近の構成を拡大して示す図であ
る。FIG. 3 is an enlarged view showing a configuration around an arm 33.
【図４】図２における竪型ローラミル２２の左方から見
た簡略化した図である。FIG. 4 is a simplified view of the vertical roller mill 22 in FIG. 2 viewed from the left side.
【図５】支軸４３を球面すべり軸受４２の内輪４６から
抜き取る作業を説明するためのメンテナンス用治具７４
を示す断面図である。FIG. 5 is a maintenance jig 74 for explaining the work of extracting the support shaft 43 from the inner ring 46 of the spherical plain bearing 42.
FIG.
【図６】メンテナンス用治具７４の分解斜視図である。FIG. 6 is an exploded perspective view of a maintenance jig 74.
【図７】メンテナンス用治具７４の抜き取り保持部７６
の遊端部８７が内輪４６の端面６３に当接している状態
を示す拡大断面図である。FIG. 7 is a drawing holding portion 76 of a maintenance jig 74.
FIG. 9 is an enlarged cross-sectional view showing a state in which a free end portion 87 of the above is in contact with the end surface 63 of the inner ring 46.
【図８】連結構造２１のメンテナンス作業の手順を示す
フローチャートである。FIG. 8 is a flowchart showing a procedure of maintenance work of the connecting structure 21.
【図９】本発明の実施の他の形態のメンテナンス用治具
９８を構成する治具本体９６と抜き取り用保持部９７と
を示す斜視図である。FIG. 9 is a perspective view showing a jig main body 96 and a pull-out holding portion 97 that form a maintenance jig 98 according to another embodiment of the present invention.
【図１０】先行技術の断面図である。FIG. 10 is a cross-sectional view of the prior art.
【図１１】図１０に示される取付け構造における支軸７
を抜き取るためのメンテナンス方法を示す断面図であ
る。11 is a support shaft 7 in the mounting structure shown in FIG.
It is sectional drawing which shows the maintenance method for extracting.
【図１２】図１１に示される支軸７を抜き取るときの状
態を示す拡大断面図である。12 is an enlarged cross-sectional view showing a state when the support shaft 7 shown in FIG. 11 is removed.
２１ 連結構造 ２２ 竪型ローラミル ２４ 鉛直軸線 ２５ テーブル ２６ 被粉砕物 ２８ 粉砕ローラ ３３ アーム ３６ 連結棒 ３７，３７ａ，３７ｂ 一端部 ３８ ローラ加圧用油圧シリンダ ４２ 球面すべり軸受 ４３ 支軸 ４４ 軸線 ４５ 外輪 ４６ 内輪 ５３ 内輪支持部 ５４，５４ａ，５４ｂ 支持端部 ５６，５７ 支持カバー部材 ５８，５９ 位置決め保持部 ６１，６２ 取付け部 ６５，６６ 位置決め用端部 ６９ 取外し用めねじ ７１ 支持端部固定用めねじ ７２ 支持端部固定用ボルト ７４，９８ メンテナンス用治具 ７５，９６ 治具本体 ７６，９７ 抜き取り保持部 ７７ 抜き取り用ねじ棒 ７８ ナット部材 ８２ ねじ孔 ８３ 収納空間 ９２ スパナ掛合部 21 Connection structure 22 Vertical roller mill 24 vertical axis 25 tables 26 Objects to be crushed 28 Grinding roller 33 arms 36 connecting rod 37, 37a, 37b One end 38 Roller Pressurizing Hydraulic Cylinder 42 Spherical plain bearing 43 spindle 44 axis 45 outer ring 46 Inner ring 53 Inner ring support 54, 54a, 54b Support end 56, 57 support cover member 58, 59 Positioning holder 61, 62 mounting part 65,66 Positioning end 69 Female thread for removal 71 Female screw for fixing support end 72 Support end fixing bolts 74,98 Maintenance jig 75,96 Jig body 76,97 sampling holder 77 Extraction screw rod 78 Nut member 82 screw holes 83 storage space 92 Spanner engagement part
───────────────────────────────────────────────────── フロントページの続き (72)発明者 今井 健一郎 兵庫県神戸市中央区東川崎町３丁目１番１ 号 川崎重工業株式会社神戸工場内 Ｆターム(参考） 4D063 EE03 EE12 EE24 EE26 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Kenichiro Imai 3-1-1 Higashikawasaki-cho, Chuo-ku, Kobe-shi, Hyogo No. Kawasaki Heavy Industries, Ltd.Kobe factory F-term (reference) 4D063 EE03 EE12 EE24 EE26
Claims (10)
ルと、 テーブル上の被粉砕物を、テーブルとの間で粉砕する粉
砕ローラと、 水平軸線まわりに角変位可能に設けられ、粉砕ローラを
回転自在に支持するアームと、 アームに、球面すべり軸受を介して、クレビス形式で一
端部が連結される連結棒と、 連結棒を引張って粉砕ローラをテーブル上に加圧するロ
ーラ加圧用油圧シリンダとを含む竪型ローラミルにおい
て、 （ａ）球面すべり軸受は、アームに設けられる外輪と、
外輪と球面で接触する内輪とを有し、 （ｂ）支軸であって、 内輪を挿通して内輪を支持する内輪支持部と、 この内輪支持部に関して支軸の軸線方向両側にそれぞれ
延び、内輪支持部の外径以下の外径を有する支持端部と
を有する支軸と、 （ｃ）一対の支持カバー部材であって、各支持カバー部
材は、 支軸の支持端部を囲み、内輪の軸線方向端面に当接する
位置決め用端部を有し、連結棒の前記一端部を挿通する
位置決め保持部と、 位置決め保持部の内輪とは反対側の端部に連なり、連結
棒の前記一端部の外側部に固定される取付け部とを有
し、 少なくとも一方の支持カバー部材の取付け部は、連結棒
の前記一端部の外側部に、取外し可能である支持カバー
部材とを含むことを特徴とする竪型ローラミル。1. A table driven to rotate about a vertical axis, a crushing roller for crushing an object to be crushed between the table and the table, and a crushing roller provided so as to be angularly displaceable about a horizontal axis. An arm that freely supports, a connecting rod whose one end is connected to the arm in a clevis form via a spherical plain bearing, and a roller pressurizing hydraulic cylinder that pulls the connecting rod to press the grinding roller on the table. In a vertical roller mill including: (a) the spherical plain bearing has an outer ring provided on the arm,
(B) an inner ring supporting portion for supporting the inner ring by inserting the inner ring, and an inner ring that is in spherical contact with the outer ring, and extends on both sides in the axial direction of the spindle with respect to the inner ring supporting portion. A support shaft having a support end portion having an outer diameter equal to or less than the outer diameter of the inner ring support portion, and (c) a pair of support cover members, each support cover member surrounding the support end portion of the support shaft, Has a positioning end that abuts the axial end face of the connecting rod, and the positioning holding part that passes through the one end of the connecting rod and the end of the positioning holding part opposite to the inner ring, and the one end of the connecting rod. And a mounting portion fixed to an outer side portion of the connecting rod, wherein the mounting portion of at least one of the supporting cover members includes a detachable supporting cover member on an outer side portion of the one end of the connecting rod. Vertical roller mill that does.
によって囲まれる一方の前記支持端部の端面に、取外し
用めねじが刻設されることを特徴とする請求項１記載の
竪型ローラミル。2. The vertical roller mill according to claim 1, wherein a female screw for detaching is engraved on an end face of the one supporting end portion surrounded by the one detachable supporting cover member.
他方の支持端部の端面に、支持端部固定用めねじが刻設
され、 支持端部固定用めねじに、その支持端部固定用めねじが
刻設された他方の支持端部を囲む他方の支持カバー部材
の取付け部を挿通する支持端部固定用ボルトが、取外し
可能に螺合して、 前記他方の支持端部と前記他方の取付け部とが固定され
ることを特徴とする請求項２記載の竪型ローラミル。3. A supporting end fixing female screw is engraved on an end surface of the other supporting end surrounded by the other supporting cover member, and the supporting end fixing female screw is attached to the supporting end fixing female screw. A support end fixing bolt that penetrates the mounting portion of the other support cover member that surrounds the other support end on which the screw is engraved is detachably screwed, and the other support end and the other support end. The vertical roller mill according to claim 2, wherein the mounting portion is fixed.
定用ボルトが、螺合可能であることを特徴とする請求項
３記載の竪型ローラミル。4. The female screw for detachment and the female screw for fixing the supporting end portion each have an axis on the axis of the support shaft, and the bolt for fixing the supporting end portion can be screwed. The vertical roller mill according to claim 3, which is characterized in that.
竪型ローラミルのメンテナンス用治具であって、 （ａ）治具本体であって、 前記一方の支持カバー部材が配置される連結棒の前記一
端部に着脱可能に固定され、 前記一方の支持端部を、内輪支持部が内輪から支軸の軸
線方向に抜き取られた状態で、前記一方の支持端部を収
納する収納空間を有する治具本体と、 （ｂ）治具本体に固定され、前記一方の支持端部を囲
み、内輪の軸線方向端面に当接する遊端部を有する抜き
取り保持部と、 （ｃ）一端部は取外し用めねじに取外し可能に螺合する
抜き取り用ねじ棒と、 （ｄ）ナット部材であって、 ねじ棒にそのねじ棒の他端部寄りで螺合し、 ねじ棒の軸線方向に沿う支軸側への治具本体との相対的
な変位が阻止されて回転可能に設けられるナット部材と
を含むことを特徴とする竪型ローラミルのメンテナンス
用治具。5. A jig for maintenance of a vertical roller mill according to claim 1, comprising: (a) a jig body, wherein the one support cover member is arranged. A storage unit that is detachably fixed to the one end of the connecting rod, and stores the one support end with the one support end removed from the inner ring in the axial direction of the support shaft. A jig body having a space; (b) a pull-out holding portion fixed to the jig body, having a free end portion that surrounds the one support end portion and abuts against an axial end surface of the inner ring; and (c) one end portion And (d) a nut member, which is detachably screwed to the female thread for removal, and which is screwed to the threaded rod near the other end of the threaded rod, along the axial direction of the threaded rod. It is rotatably installed so that relative displacement of the jig body to the spindle side is prevented. Maintenance jig vertical roller mill which comprises a nut member.
パナ掛合部が形成され、 ナット部材にも、スパナ掛合部が形成されることを特徴
とする請求項５記載の竪型ローラミルのメンテナンス用
治具。6. The vertical roller mill according to claim 5, wherein a wrench engaging portion is formed on the other end portion of the extracting screw rod, and a wrench engaging portion is also formed on the nut member. Jig for maintenance.
を準備し、 前記一方の支持カバー部材を取外し、 治具本体を、連結棒の前記一端部に固定するとともに、
前記抜き取り保持部の遊端部を内輪の軸線方向の端面に
対向させ、 ねじ棒の一端部を、取外し用めねじに螺合し、 ねじ棒に螺合したナット部材を回転して、治具本体によ
ってねじ棒の軸線方向の反力を受けながら、前記抜き取
り保持部の遊端部が内輪の軸線方向の端面に当接した状
態で、ねじ棒とともに支軸を、抜き取ることを特徴とす
る竪型ローラミルのメンテナンス方法。7. The maintenance jig according to claim 5 or 6 is prepared, the one supporting cover member is removed, and the jig body is fixed to the one end of the connecting rod.
The free end of the extractor holding part is opposed to the axial end face of the inner ring, one end of the screw rod is screwed into the female screw for removal, and the nut member screwed into the screw rod is rotated to move the jig. A vertical shaft is pulled out together with the screw rod while the free end portion of the extraction holding portion is in contact with the axial end face of the inner ring while receiving a reaction force in the axial direction of the screw rod by the main body. Type roller mill maintenance method.
が、球面すべり軸受を介して連結され、 （ａ）球面すべり軸受は、第１部材に設けられる外輪
と、外輪と球面で接触する内輪とを有し、 （ｂ）支軸であって、 内輪を挿通して内輪を支持する内輪支持部と、 この内輪支持部に関して支軸の軸線方向両側にそれぞれ
延び、内輪支持部の外径以下の外径を有する支持端部と
を有する支軸と、 （ｃ）一対の支持カバー部材であって、各支持カバー部
材は、 支軸の支持端部を囲み、内輪の軸線方向端面に当接する
位置決め用端部を有し、第２部材を挿通する位置決め保
持部と、 位置決め保持部の内輪とは反対側の端部に連なり、第２
部材の外側部に固定される取付け部とを有し、 少なくとも一方の支持カバー部材の取付け部は、第２部
材の外側部に、取外し可能である支持カバー部材とを含
むことを特徴とする連結装置。8. A first member and a clevis-type second member are connected via a spherical plain bearing, and (a) the spherical plain bearing is in spherical contact with the outer ring provided on the first member. (B) is a support shaft, which is an inner ring support part that supports the inner ring by inserting the inner ring, and an inner ring support part that extends on both sides in the axial direction of the support shaft with respect to the inner ring support part and that is outside the inner ring support part. A support shaft having a support end having an outer diameter equal to or less than a diameter, and (c) a pair of support cover members, each support cover member enclosing the support end of the support shaft and being provided on an axial end surface of the inner ring. The positioning holding portion that has the abutting positioning end portion that passes through the second member and the end portion of the positioning holding portion that is on the opposite side of the inner ring,
A mounting portion fixed to an outer portion of the member, wherein at least one mounting portion of the support cover member includes a detachable support cover member on the outer portion of the second member. apparatus.
ナンス用治具であって、 （ａ）治具本体であって、 前記一方の支持カバー部材が配置される第２部材に着脱
可能に固定され、 前記一方の支持端部を、内輪支持部が内輪から支軸の軸
線方向に抜き取られた状態で、前記一方の支持端部を収
納する収納空間を有する治具本体と、 （ｂ）治具本体に固定され、前記一方の支持端部を囲
み、内輪の軸線方向端面に当接する遊端部を有する抜き
取り保持部と、 （ｃ）一端部は取外し用めねじに取外し可能に螺合する
抜き取り用ねじ棒と、 （ｄ）ナット部材であって、 ねじ棒にそのねじ棒の他端部寄りで螺合し、 ねじ棒の軸線方向に沿う支軸側への治具本体との相対的
な変位が阻止されて回転可能に設けられるナット部材と
を含むことを特徴とする連結装置のメンテナンス用治
具。9. The maintenance jig for the coupling device according to claim 8, wherein the jig is (a) a jig body, the jig main body being detachable from a second member on which the one support cover member is disposed. A jig body which is fixed and has a storage space for storing the one support end in a state in which the inner ring support part is pulled out from the inner ring in the axial direction of the support shaft; A retainer that is fixed to the jig body, surrounds the one support end, and has a free end that contacts the axial end face of the inner ring, and (c) One end is screwed to a female screw for removal. (D) a nut member that is screwed to the threaded rod near the other end of the threaded rod, and the jig body is attached to the spindle side along the axial direction of the threaded rod. And a nut member that is rotatably provided while being prevented from being mechanically displaced. Maintenance jig that the coupling device.
し、 前記一方の支持カバー部材を取外し、 治具本体を、第２部材に固定するとともに、前記抜き取
り保持部の遊端部を内輪の軸線方向の端面に対向させ、 ねじ棒の一端部を、取外し用めねじに螺合し、 ねじ棒に螺合したナット部材を回転して、治具本体によ
ってねじ棒の軸線方向の反力を受けながら、前記抜き取
り保持部の遊端部が内輪の軸線方向の端面に当接した状
態で、ねじ棒とともに支軸を、抜き取ることを特徴とす
る連結装置のメンテナンス方法。10. The maintenance jig of claim 9 is prepared, the one support cover member is removed, the jig body is fixed to the second member, and the free end of the extraction holding portion is fixed to the inner ring. Face the axial end face, screw one end of the screw rod into the female screw for removal, rotate the nut member screwed into the screw rod, and use the jig body to apply the reaction force in the axial direction of the screw rod. A maintenance method for a connecting device, characterized in that the support shaft is pulled out together with the screw rod while the free end portion of the pull-out holding portion is in contact with the axial end face of the inner ring while receiving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002006094A JP3689044B2 (en) | 2002-01-15 | 2002-01-15 | Vertical roller mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002006094A JP3689044B2 (en) | 2002-01-15 | 2002-01-15 | Vertical roller mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003205251A true JP2003205251A (en) | 2003-07-22 |
| JP3689044B2 JP3689044B2 (en) | 2005-08-31 |
Family
ID=27644960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002006094A Expired - Fee Related JP3689044B2 (en) | 2002-01-15 | 2002-01-15 | Vertical roller mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3689044B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015177431A1 (en) | 2014-05-21 | 2015-11-26 | Snecma | Ball joint device for a turbine engine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103100466B (en) * | 2013-01-14 | 2015-07-08 | 莱歇研磨机械制造(上海)有限公司 | Shell structure of grinding roller of roll mill |
-
2002
- 2002-01-15 JP JP2002006094A patent/JP3689044B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015177431A1 (en) | 2014-05-21 | 2015-11-26 | Snecma | Ball joint device for a turbine engine |
| FR3021373A1 (en) * | 2014-05-21 | 2015-11-27 | Snecma | JOINT HINGE DEVICE FOR A TURBOMACHINE. |
| US10626913B2 (en) | 2014-05-21 | 2020-04-21 | Safran Aircraft Engines | Ball joint device for a turbine engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3689044B2 (en) | 2005-08-31 |
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