JPH0297441U - - Google Patents
Info
- Publication number
- JPH0297441U JPH0297441U JP502389U JP502389U JPH0297441U JP H0297441 U JPH0297441 U JP H0297441U JP 502389 U JP502389 U JP 502389U JP 502389 U JP502389 U JP 502389U JP H0297441 U JPH0297441 U JP H0297441U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic cylinder
- spherical
- excavator
- passage
- outer ring
- 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
- 230000001050 lubricating effect Effects 0.000 claims 1
- 239000010687 lubricating oil Substances 0.000 claims 1
- 238000000605 extraction Methods 0.000 description 1
Landscapes
- Pivots And Pivotal Connections (AREA)
Description
第１図は本考案の掘削機の油圧シリンダの球面
支持構造の一実施例を示す断面図、第２図は従来
の掘削機の一例を示す側面図、第３図は第２図の
Ａ−Ａ矢視拡大図、すなわち従来の油圧シリンダ
の球面支持構造を示す断面図である。
２……ブーム、６……アームシリンダ、８……
球面軸受、８Ａ……外輪、８Ｂ……内輪、９……
連結ピン、９Ａ……テーパ部、９Ｂ……つば部、
１４……ピン、１４Ａ……ねじ部、１４Ｂ……抜
出し穴、１４Ｃ……テーパ部、１５……ナツト、
１６……ボルト。
Fig. 1 is a sectional view showing an embodiment of the spherical support structure for the hydraulic cylinder of an excavator according to the present invention, Fig. 2 is a side view showing an example of a conventional excavator, and Fig. 3 is an A-- FIG. 2 is an enlarged view in the direction of arrow A, that is, a sectional view showing a conventional spherical support structure of a hydraulic cylinder. 2...Boom, 6...Arm cylinder, 8...
Spherical bearing, 8A...Outer ring, 8B...Inner ring, 9...
Connecting pin, 9A...Tapered part, 9B...Brim part,
14...Pin, 14A...Threaded part, 14B...Extraction hole, 14C...Tapered part, 15...Nut,
16...Bolt.
Claims (1)
けられ、上記油圧シリンダに装着される外輪、及
び該外輪に球面接触する内輪とからなる球面軸受
と、上記内輪と上記リンクとを貫通する連結ピン
とを備えるとともに、上記球面軸受を潤滑する潤
滑油を導く通路を有する掘削機の油圧シリンダの
球面支持構造において、上記連結ピンを内部にテ
ーパ部を有する中空形状にし、上記ピン内に上記
テーパ部に係合するテーパ部を有する別のピンを
挿入するとともに、上記通路が上記球面軸受の外
輪を貫通し上記内輪の表面に至る通路であること
を特徴とする掘削機の油圧シリンダの球面支持構
造。 A spherical bearing provided at a connection between a link of an excavator and a hydraulic cylinder and comprising an outer ring attached to the hydraulic cylinder and an inner ring in spherical contact with the outer ring; and a connecting pin passing through the inner ring and the link. and a spherical support structure for a hydraulic cylinder of an excavator having a passage for guiding lubricating oil for lubricating the spherical bearing; A spherical support structure for a hydraulic cylinder of an excavator, characterized in that another pin having an engaging taper portion is inserted, and the passage is a passage passing through an outer ring of the spherical bearing and reaching a surface of the inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP502389U JPH0297441U (en) | 1989-01-21 | 1989-01-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP502389U JPH0297441U (en) | 1989-01-21 | 1989-01-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0297441U true JPH0297441U (en) | 1990-08-02 |
Family
ID=31208035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP502389U Pending JPH0297441U (en) | 1989-01-21 | 1989-01-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0297441U (en) |
-
1989
- 1989-01-21 JP JP502389U patent/JPH0297441U/ja active Pending