JPH035762U - - Google Patents
Info
- Publication number
- JPH035762U JPH035762U JP6676689U JP6676689U JPH035762U JP H035762 U JPH035762 U JP H035762U JP 6676689 U JP6676689 U JP 6676689U JP 6676689 U JP6676689 U JP 6676689U JP H035762 U JPH035762 U JP H035762U
- Authority
- JP
- Japan
- Prior art keywords
- seal
- bearing device
- groove
- lip portion
- construction machine
- 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
- 238000010276 construction Methods 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Component Parts Of Construction Machinery (AREA)
Description
第１図は本考案の建設機械における旋回軸受装
置の第１実施例を示す断面説明図、第２図は第１
図の一部を拡大した断面説明図、第３図は一般的
な油圧シヨベルを示す側面図、第４図は従来の建
設機械における旋回軸受装置を示す断面説明図、
第５図は第４図の一部を拡大した断面説明図であ
る。
１１０…外輪、１２…内輪、１７…シール、１
７ａ…リツプ部、２０…溝、１１１…下面部。
FIG. 1 is a cross-sectional explanatory diagram showing a first embodiment of a swing bearing device for a construction machine of the present invention, and FIG.
3 is a side view showing a general hydraulic excavator; FIG. 4 is a sectional view showing a swing bearing device in a conventional construction machine;
FIG. 5 is an enlarged cross-sectional view of a part of FIG. 4. 110...Outer ring, 12...Inner ring, 17...Seal, 1
7a...Rip part, 20...Groove, 111...Lower surface part.
Claims (1)
成し、その溝に環状のシールを嵌め込ませた建設
機械における旋回軸受装置において、前記外輪の
下面部に前記内輪側に嵌め込まれたシールのリツ
プ部を当接させ、この当接された部分より外側の
下面部に、前記シールのリツプ部と並設させて流
れ阻止手段を設けたことを特徴とする建設機械に
おける旋回軸受装置。 (2) 前記流れ阻止手段を、シールのリツプ部の
位置より外側の前記下面部に形成された溝により
構成したことを特徴とする請求項(1)記載の建設
機械における旋回軸受装置。 (3) 前記溝を、前記下面部に並列に形成された
二重溝としたことを特徴とする請求項(2)記載の
建設機械における旋回軸受装置。[Claims for Utility Model Registration] (1) In a swing bearing device for a construction machine in which an annular groove is formed on the outer peripheral surface of an inner ring of the swing bearing and an annular seal is fitted into the groove, the lower surface of the outer ring A lip portion of a seal fitted into the inner ring side is brought into contact with the lip portion of the seal, and a flow prevention means is provided on the lower surface portion outside of the abutted portion and arranged in parallel with the lip portion of the seal. Swivel bearing device for construction machinery. (2) The slewing bearing device for a construction machine according to claim (1), wherein the flow prevention means is constituted by a groove formed in the lower surface portion outside the position of the lip portion of the seal. (3) The swing bearing device for a construction machine according to claim (2), wherein the groove is a double groove formed in parallel on the lower surface portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6676689U JPH035762U (en) | 1989-06-09 | 1989-06-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6676689U JPH035762U (en) | 1989-06-09 | 1989-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH035762U true JPH035762U (en) | 1991-01-21 |
Family
ID=31599755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6676689U Pending JPH035762U (en) | 1989-06-09 | 1989-06-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH035762U (en) |
-
1989
- 1989-06-09 JP JP6676689U patent/JPH035762U/ja active Pending
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