JPH0426253U - - Google Patents
Info
- Publication number
- JPH0426253U JPH0426253U JP6487490U JP6487490U JPH0426253U JP H0426253 U JPH0426253 U JP H0426253U JP 6487490 U JP6487490 U JP 6487490U JP 6487490 U JP6487490 U JP 6487490U JP H0426253 U JPH0426253 U JP H0426253U
- Authority
- JP
- Japan
- Prior art keywords
- planetary gears
- rotating body
- swing
- fixed
- gear
- 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
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
Landscapes
- Component Parts Of Construction Machinery (AREA)
Description
第１図は実施例に係る旋回装置のスイングピニ
オン、遊星歯車、スイングサークルのリングギヤ
の噛み合いを示す平面説明図、第２図は第１図に
おけるＡ−Ａ断面図、第３図は同じくＢ−Ｂ断面
図、第４図は従来の旋回装置のスイングピニオン
とリングギヤとの噛み合い部分の断面図、第５図
は油圧式掘削機の概略側面図である。
１……上部旋回体、２……旋回減速機、３……
スイングピニオン、４，５……遊星歯車、６……
スイングサークル、６ａ……リングギヤ、７……
軸受、８，９……歯車軸、８ａ，９ａ……軸部、
８ｂ，９ｂ……軸端、１０……下部走行体。
FIG. 1 is an explanatory plan view showing the meshing of the swing pinion, planetary gear, and ring gear of the swing circle of the swing device according to the embodiment, FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1, and FIG. B sectional view, FIG. 4 is a sectional view of a meshing portion between a swing pinion and a ring gear of a conventional swing device, and FIG. 5 is a schematic side view of a hydraulic excavator. 1... Upper revolving structure, 2... Swing reducer, 3...
Swing pinion, 4, 5... Planetary gear, 6...
Swing circle, 6a...Ring gear, 7...
Bearing, 8, 9... Gear shaft, 8a, 9a... Shaft part,
8b, 9b... shaft end, 10... lower running body.
Claims (1)
グピニオンと、下部走行体に固着したスイングサ
ークルのリングギヤとの噛み合いにより、上部旋
回体を下部走行体に対して旋回させることができ
るようにした旋回装置において、歯車軸を上部旋
回体に固着した２個の遊星歯車を前記スイングピ
ニオンの周囲に設け、スイングピニオンの回転力
を前記遊星歯車を介してリングギヤに伝達するよ
うにし、これらの遊星歯車の少なくとも一方に遊
星歯車相互の中心距離を調整する手段を備えたこ
とを特徴とする旋回装置のバツクラツシレス機構
。 (2) 遊星歯車相互の中心距離を調整する手段と
して、２個の遊星歯車の少なくとも一方の歯車軸
の、軸受を介して遊星歯車を取着する軸部を、上
部旋回体に固着する軸端に対して偏心させたこと
を特徴とする請求項(1)記載の旋回装置のバツク
ラツシレス機構。[Scope of Claim for Utility Model Registration] (1) The upper rotating body is connected to the lower rotating body by the engagement between the swing pinion of the swing reducer fixed to the upper rotating body and the ring gear of the swing circle fixed to the lower rotating body. In a swinging device capable of swinging, two planetary gears whose gear shafts are fixed to an upper rotating body are provided around the swing pinion, and the rotational force of the swing pinion is transmitted to a ring gear via the planetary gears. 1. A backlashless mechanism for a turning device, characterized in that at least one of the planetary gears is provided with means for adjusting the center distance between the planetary gears. (2) As a means for adjusting the center distance between the planetary gears, the shaft end of the gear shaft of at least one of the two planetary gears, to which the planetary gear is attached via a bearing, is fixed to the upper revolving structure. 2. The backlashless mechanism for a swing device according to claim 1, wherein the mechanism is eccentric with respect to the swivel device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6487490U JPH0426253U (en) | 1990-06-19 | 1990-06-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6487490U JPH0426253U (en) | 1990-06-19 | 1990-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0426253U true JPH0426253U (en) | 1992-03-02 |
Family
ID=31596198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6487490U Pending JPH0426253U (en) | 1990-06-19 | 1990-06-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0426253U (en) |
-
1990
- 1990-06-19 JP JP6487490U patent/JPH0426253U/ja active Pending