JPH0415652U - - Google Patents
Info
- Publication number
- JPH0415652U JPH0415652U JP5533590U JP5533590U JPH0415652U JP H0415652 U JPH0415652 U JP H0415652U JP 5533590 U JP5533590 U JP 5533590U JP 5533590 U JP5533590 U JP 5533590U JP H0415652 U JPH0415652 U JP H0415652U
- Authority
- JP
- Japan
- Prior art keywords
- inner ring
- ring
- fixed
- outer ring
- ball
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 1
- 239000004519 grease Substances 0.000 description 1
Landscapes
- Component Parts Of Construction Machinery (AREA)
Description
第１図は本考案の縦断面図、第２図は第１図の
Ａ部拡大図、第３図は油圧シヨベルの側面図、第
４図は従来例の縦断面図である。
１……下部走行体、２……上部旋回体、３……
旋回ベアリング、１１……旋回ベアリングの外輪
、１１ａ……軌道面、１１ｂ……下面、１２……
ボルト、１３……上部旋回体のベースプレート、
１４……旋回ベアリングの内輪、１４ａ……軌道
面、１４ｂ……上面、１４ｃ……外周面、１４ｄ
……環状溝、１５……ボルト、１６……下部走行
体のロワーフレーム、１６ａ……溝、１６ｂ……
突起、１７……リングギヤ、１８……ボール、１
９……グリース溜り、２０……下方のシール（従
来例）、２１……上方のシール、２２……ピニオ
ン室、２３……下方のシール、２３ａ……先端リ
ツプ部、２３ｂ……基端部、２３ｃ……中間部。
FIG. 1 is a longitudinal sectional view of the present invention, FIG. 2 is an enlarged view of section A in FIG. 1, FIG. 3 is a side view of a hydraulic excavator, and FIG. 4 is a longitudinal sectional view of a conventional example. 1... Lower traveling body, 2... Upper revolving body, 3...
Swivel bearing, 11... Outer ring of the swing bearing, 11a... Raceway surface, 11b... Bottom surface, 12...
Bolt, 13...Base plate of upper rotating body,
14... Inner ring of swing bearing, 14a... Raceway surface, 14b... Top surface, 14c... Outer peripheral surface, 14d
...Annular groove, 15...Bolt, 16...Lower frame of lower running body, 16a...Groove, 16b...
Projection, 17...Ring gear, 18...Ball, 1
9... Grease reservoir, 20... Lower seal (conventional example), 21... Upper seal, 22... Pinion chamber, 23... Lower seal, 23a... Tip lip portion, 23b... Base end portion , 23c...middle part.
Claims (1)
た外輪１１と下部走行体１のロワーフレーム１６
に固定された内輪１４との間にボール１８を配設
し、ボール１８の上下空間部をゴム製シールによ
つてシールするようにした旋回ベアリングのシー
ル装置において、下方のシール２３は、先端リツ
プ部２３ａが内方に湾曲して外輪１１の下面１１
ｂに接触し、基端部２３ｂが内輪１４の外周面１
４ｃに接触し、中間部２３ｃが前記内輪１４の外
周面１４ｃに凹設された環状溝１４ｄに嵌着支持
されていることを特徴とする旋回ベアリングのシ
ール装置。 The outer ring 11 fixed to the base plate 13 of the upper rotating body 2 and the lower frame 16 of the lower traveling body 1
In a sealing device for a swing bearing, a ball 18 is disposed between an inner ring 14 fixed to The portion 23a is curved inward and the lower surface 11 of the outer ring 11 is
b, and the base end 23b contacts the outer circumferential surface 1 of the inner ring 14.
4c, and the intermediate portion 23c is fitted and supported in an annular groove 14d recessed in the outer peripheral surface 14c of the inner ring 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5533590U JPH0738402Y2 (en) | 1990-05-29 | 1990-05-29 | Slewing bearing seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5533590U JPH0738402Y2 (en) | 1990-05-29 | 1990-05-29 | Slewing bearing seal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0415652U true JPH0415652U (en) | 1992-02-07 |
| JPH0738402Y2 JPH0738402Y2 (en) | 1995-09-06 |
Family
ID=31578195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5533590U Expired - Lifetime JPH0738402Y2 (en) | 1990-05-29 | 1990-05-29 | Slewing bearing seal device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0738402Y2 (en) |
-
1990
- 1990-05-29 JP JP5533590U patent/JPH0738402Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0738402Y2 (en) | 1995-09-06 |
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