JPS6146771A - Bearing structure of roller for crawler type vehicles - Google Patents
Bearing structure of roller for crawler type vehiclesInfo
- Publication number
- JPS6146771A JPS6146771A JP16646884A JP16646884A JPS6146771A JP S6146771 A JPS6146771 A JP S6146771A JP 16646884 A JP16646884 A JP 16646884A JP 16646884 A JP16646884 A JP 16646884A JP S6146771 A JPS6146771 A JP S6146771A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- bearing
- spherical
- bearing structure
- outer race
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/092—Endless track units; Parts thereof with lubrication means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
【発明の詳細な説明】 〔発明の利m分野〕 本発明は装軌式車両用ローラの軸受構造に関する。[Detailed description of the invention] [Fields where the invention benefits] The present invention relates to a bearing structure for a roller for a tracked vehicle.
油圧ショベル走行体等の装軌式車両に用いられるローラ
の軸受構造として第4図に示すものが知られている。As a bearing structure for a roller used in a tracked vehicle such as a hydraulic excavator traveling body, the structure shown in FIG. 4 is known.
ロー8が中央に空部を有していた1対の部材を突き合わ
せ、両者間を溶接して左右対称に構成されており、その
両端はそれぞれ軸受を介してローラフレーム3に支持さ
れている。The row 8 is constructed symmetrically by abutting a pair of members having a hollow space in the center and welding them together, and both ends of the row 8 are supported by the roller frame 3 via bearings, respectively.
ローラフレーム3にはボルト2によってベアリングケー
ジ1が固定され、このベアリンクケージ1とローラ8の
端部間に球面ころベアリング4が装着されている。球面
ころベアリング4の潤滑性を保持するために、近傍に形
成した空部に潤滑油11を封入している。この?I!+
!滑油11の濡洩を防止するため、ベアリングケージ1
とリテイナシール6間にはOリング10が、また球面こ
ろベアリング4の外輪とベアリングケージ1間にはOリ
ング5が配置されている。実にローラ8とリテイナシー
ル6間には、外部からの土砂や泥水の侵入防止および潤
滑油11の濡洩防止のためシール7が装着されている。A bearing cage 1 is fixed to the roller frame 3 by bolts 2, and a spherical roller bearing 4 is installed between the bear link cage 1 and the end of the roller 8. In order to maintain the lubricity of the spherical roller bearing 4, lubricating oil 11 is sealed in a cavity formed nearby. this? I! +
! In order to prevent the lubricating oil 11 from leaking, the bearing cage 1
An O-ring 10 is disposed between the retainer seal 6 and the retainer seal 6, and an O-ring 5 is disposed between the outer ring of the spherical roller bearing 4 and the bearing cage 1. In fact, a seal 7 is installed between the roller 8 and the retainer seal 6 to prevent dirt and muddy water from entering from the outside and to prevent the lubricating oil 11 from leaking.
従来の軸受構造は上述の如き構成であったため、ローラ
8をローラフレーム3へ支持するに際し、図面の左端に
示すようにボルト12を用いてローラ8とベアリングケ
ージ1を仮固定した予備組立状態でベアリングケージl
をローラフレーム3にボルト2で固定し、その後ぼると
12を取り外し、潤滑油11よ給油し、図面右端に示す
ようにプラグ9に封じていた。Since the conventional bearing structure had the above-mentioned configuration, when supporting the roller 8 on the roller frame 3, the roller 8 and the bearing cage 1 were temporarily fixed in a pre-assembled state using bolts 12 as shown at the left end of the drawing. bearing cage l
was fixed to the roller frame 3 with bolts 2, and after that, 12 was removed, lubricated with lubricating oil 11, and sealed in a plug 9 as shown at the right end of the drawing.
このようにボルト12の着脱という作業が必要であり、
また潤滑油の濡洩防止のために0リンク5、lOやシー
ル7が必要であったため、従来の軸受構造は構造が複雑
で、また組立て時の作業性が悪かった。In this way, it is necessary to attach and detach the bolt 12,
Further, since O links 5, 1 O, and seals 7 are required to prevent lubricating oil from leaking, conventional bearing structures are complex and have poor workability during assembly.
本発明の目的は構造が簡単で組立て時の作業性を向上し
た装軌式車両用ローラの軸受構造を提供するにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a roller bearing structure for a tracked vehicle that is simple in structure and improves workability during assembly.
本発明はローラの両端部を無潤滑球面軸受によって支持
し、従来必要であった潤滑油溜や濡洩防止構造等を不要
にしたことを特徴とする。The present invention is characterized in that both ends of the roller are supported by non-lubricated spherical bearings, thereby eliminating the need for lubricating oil reservoirs, leakage prevention structures, etc. that were conventionally necessary.
以下本発明を図面に示す実施例によって説明する。 The present invention will be explained below with reference to embodiments shown in the drawings.
第1図はローラの軸受構造の左半分を示す断面図である
。ローラ8の左端は、無潤滑球面軸受22を介してロー
ラフレーム3に支持されている。FIG. 1 is a sectional view showing the left half of the roller bearing structure. The left end of the roller 8 is supported by the roller frame 3 via a non-lubricated spherical bearing 22.
この無潤滑球面軸受22は、ローラ8の左端に圧入し段
付部8aで位置規制されたインナーレース22aと、ロ
ーラフレーム3へ回しないボルト等で固定したアウター
レース22bとを有し、両者の球面摺動画22c間に固
体潤滑剤が挿入されて構成されておりねこの球面摺動画
22cでローラ8の回転に伴うスラスト荷重やラジアル
荷重が設けられている。次に、この球面摺動画22cを
土砂や泥水から保護するための構造について説明する。This lubricant-free spherical bearing 22 has an inner race 22a that is press-fitted into the left end of the roller 8 and whose position is regulated by a stepped portion 8a, and an outer race 22b that is fixed to the roller frame 3 with a non-rotating bolt or the like. A solid lubricant is inserted between the spherical sliding moving parts 22c, and the thrust load and radial load accompanying the rotation of the roller 8 are provided in the cat's spherical sliding moving parts 22c. Next, a structure for protecting the spherical sliding moving image 22c from dirt and muddy water will be explained.
アウターレース22bの左端は、0リング25を介して
配置したキュツブ24がボルト26によって固定されて
封じられており、一方、アウターレース22bの右端に
は、インナーレース22aへの密接したシール23が取
り付けられており、球面摺動画22cの両側がシール部
材によって封じられている。The left end of the outer race 22b is sealed with a cuvette 24 placed through an O-ring 25 and fixed by a bolt 26, while the right end of the outer race 22b is sealed with a seal 23 that is closely connected to the inner race 22a. Both sides of the spherical sliding moving image 22c are sealed by seal members.
第1図はローラ8の左方の摺動画構造のみ示しているが
、右方も対称で同一構造となっている。Although FIG. 1 only shows the sliding structure on the left side of the roller 8, the right side is also symmetrical and has the same structure.
無潤m球面軸受は、従来のこるベアリングが複数の線で
接触する構成であるのに対して球面接触であるから、接
触面積が大きくなり耐荷重性を高めることができる。ま
た無潤滑球面軸受22は、従来のように潤滑油溜や漏洩
防止構成を必要としないので、極めて簡単な構成となる
。しかも、アウターレース22bをローラフレーム3へ
固定しているので、その間に存在していたもののために
予備組立ての時に仮止し、その後取り外すという必要は
なく、従来よりも作業性を向上することができる。つま
り、予備組立てでローラ8の端部に無潤滑球面軸受22
を構成し、キャップ24等のシール部材を取り付けても
、その後これらを取り外す必要はない。Non-lubricant spherical bearings have spherical contact, whereas conventional spherical bearings have a structure in which contact is made with multiple lines, so the contact area is large and load carrying capacity can be improved. Further, the non-lubricated spherical bearing 22 does not require a lubricating oil reservoir or a leakage prevention structure unlike the conventional one, so it has an extremely simple structure. Furthermore, since the outer race 22b is fixed to the roller frame 3, there is no need to temporarily fix it during pre-assembly and then remove it due to what was present in between, which improves workability compared to the conventional method. can. In other words, the non-lubricated spherical bearing 22 is attached to the end of the roller 8 during pre-assembly.
Even if a sealing member such as the cap 24 is attached, there is no need to remove these afterwards.
第2図および第3図はそれぞれ異なる他の実施例による
軸受構造の要部断面図で、第2図ではアウターレース2
2bに取り付けたシール23のシール面をローラ8の端
軸部に接触させており、第3図ではシール23のシール
面をローラ8の側面に接触させている。いずれの実施例
においてもアウターレース22bに2つのシール部材を
取り付けているので、構造は一層簡単になっている。2 and 3 are sectional views of main parts of bearing structures according to other different embodiments, and FIG. 2 shows an outer race 2.
The sealing surface of the seal 23 attached to 2b is brought into contact with the end shaft portion of the roller 8, and in FIG. 3, the sealing surface of the seal 23 is brought into contact with the side surface of the roller 8. In both embodiments, two seal members are attached to the outer race 22b, making the structure even simpler.
以上説明したように本発明は、無潤滑球面軸受を用いた
ため、従来必要であった潤滑油のための構成を不要にし
、またアウターレースをローラフレームへ固定したため
、両者間の構成物がなくなるので予備組立ての段階で仮
止めする必要はなくなりね構成を簡単にすることができ
ると共に組立て時の作業性を向上することができる。As explained above, the present invention uses a non-lubricated spherical bearing, which eliminates the need for a structure for lubricating oil, which was necessary in the past.Also, since the outer race is fixed to the roller frame, there is no need for a structure between the two. There is no need for temporary fixing at the preliminary assembly stage, which simplifies the structure and improves workability during assembly.
【図面の簡単な説明】
第1図は本発明の一実施例によるローラの軸受構造を示
す要部断面図、第2図および第3図は本発明のそれぞれ
異なる他の実施例によるローラの軸受構造わ示す要部断
面図、第4図は従来のローラの軸受構造を示す断面図で
ある。
3・・・ローラフレーム、8・・・ ローラ、22・・
・無潤滑球面軸受、22a・・・・・インナーレース、
22b・・・・・アウターレース、23・・・・・・シ
ール、24・・・・・・キャップ。
第1 図
第25El 第3図[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a sectional view of a main part showing a roller bearing structure according to one embodiment of the present invention, and FIGS. 2 and 3 are roller bearings according to other different embodiments of the present invention. FIG. 4 is a sectional view showing a conventional roller bearing structure. 3...Roller frame, 8...Roller, 22...
・Non-lubricated spherical bearing, 22a...inner race,
22b... Outer lace, 23... Seal, 24... Cap. Figure 1 Figure 25El Figure 3
Claims (1)
した装軌式車両用ローラの軸受構造において、上記軸受
は無潤滑球面軸受とし、そのインナーレースを上記ロー
ラの端部に固定し、アウターレースを上記ローラフレー
ムへ固定し、上記インナーレースと上記アウターレース
間の球面動画の両側にそれぞれ外部からの土砂の侵入を
防止する部材を設けたことを特徴とする装軌式車両用ロ
ーラの軸受構造。 2、上記特許請求の範囲第1項記載のものにおいて、上
記両部材は、それぞれ上記アウターレースの両端部に取
り付けたことを特徴とする装軌式車両用ローラの軸受構
造。[Claims] 1. In a bearing structure for a roller for a tracked vehicle in which the end of the roller is supported on a roller frame via a bearing, the bearing is a non-lubricated spherical bearing, and the inner race is connected to the end of the roller. the outer race is fixed to the roller frame, and members for preventing the intrusion of earth and sand from the outside are provided on both sides of the spherical moving image between the inner race and the outer race. Bearing structure for rollers for type vehicles. 2. The bearing structure for a roller for a tracked vehicle according to claim 1, wherein both of the members are attached to both ends of the outer race, respectively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16646884A JPS6146771A (en) | 1984-08-10 | 1984-08-10 | Bearing structure of roller for crawler type vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16646884A JPS6146771A (en) | 1984-08-10 | 1984-08-10 | Bearing structure of roller for crawler type vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6146771A true JPS6146771A (en) | 1986-03-07 |
Family
ID=15831953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16646884A Pending JPS6146771A (en) | 1984-08-10 | 1984-08-10 | Bearing structure of roller for crawler type vehicles |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6146771A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0759392A2 (en) * | 1995-08-05 | 1997-02-26 | Intertractor Aktiengesellschaft | Roller for endless tracks |
EP2296959A2 (en) * | 2008-07-14 | 2011-03-23 | Caterpillar, Inc. | Self-lubricated track roller assembly and machine using same |
-
1984
- 1984-08-10 JP JP16646884A patent/JPS6146771A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0759392A2 (en) * | 1995-08-05 | 1997-02-26 | Intertractor Aktiengesellschaft | Roller for endless tracks |
EP2296959A2 (en) * | 2008-07-14 | 2011-03-23 | Caterpillar, Inc. | Self-lubricated track roller assembly and machine using same |
CN102099241A (en) * | 2008-07-14 | 2011-06-15 | 卡特彼勒公司 | Self-lubricated track roller assembly and machine using same |
JP2011527973A (en) * | 2008-07-14 | 2011-11-10 | キャタピラー インコーポレイテッド | Self-lubricating roller assembly and machines using the assembly |
EP2296959A4 (en) * | 2008-07-14 | 2012-01-11 | Caterpillar Inc | Self-lubricated track roller assembly and machine using same |
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