JPH0441553U - - Google Patents
Info
- Publication number
- JPH0441553U JPH0441553U JP2036490U JP2036490U JPH0441553U JP H0441553 U JPH0441553 U JP H0441553U JP 2036490 U JP2036490 U JP 2036490U JP 2036490 U JP2036490 U JP 2036490U JP H0441553 U JPH0441553 U JP H0441553U
- Authority
- JP
- Japan
- Prior art keywords
- friction wheel
- swing
- rotating body
- hydraulic excavator
- driven
- 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
- 238000005096 rolling process Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Component Parts Of Construction Machinery (AREA)
Description
第１図は本考案における第１実施例を示す図で
、Ａは油圧式掘削機の全体側面図、ＢはＡのＰ部
詳細断面図、ＣはＢのＣ−Ｃ断面図である。第２
図は本考案における第２実施例を示す図で、Ａは
前記第１図のＢに相当する第１図ＡのＰ部詳細断
面図、ＢはＡのＢ−Ｂ断面図、ＣはＡのＣ−Ｃ矢
視図である。第３図は従来の技術を示す図である
。
１……下部走行体、１ａ，１ｂ……転動面、２
……上部旋回体、３……油圧モータ、４……第１
ベベルギヤ、５……スイングピニオン、６……サ
ークルギヤ、７……第２ベベルギヤ、８，３８…
…軸、９，３９……摩擦車、９ａ，３９ａ……外
周面、１０ａ，１０ｂ……ベアリング、１１，３
１……ブラケツト、１２，３２……ケース、１３
……スプリング、１４……ナツト、１５……調整
ボルト、１６……スラストベアリング、１７……
円筒壁、１８，１９……シール、２０……ボール
ベアリング、２１……支持リング、３３……板ば
ね、３４……第１平歯車、３７……第２平歯車。
FIG. 1 is a diagram showing a first embodiment of the present invention, in which A is an overall side view of a hydraulic excavator, B is a detailed sectional view of the P section of A, and C is a CC sectional view of B. Second
The figures show a second embodiment of the present invention, where A is a detailed sectional view of section P in FIG. 1A, which corresponds to B in FIG. It is a CC arrow view. FIG. 3 is a diagram showing a conventional technique. 1... Lower running body, 1a, 1b... Rolling surface, 2
... Upper revolving body, 3 ... Hydraulic motor, 4 ... First
Bevel gear, 5... Swing pinion, 6... Circle gear, 7... Second bevel gear, 8, 38...
...Shaft, 9, 39...Friction wheel, 9a, 39a...Outer circumferential surface, 10a, 10b...Bearing, 11,3
1... Bracket, 12, 32... Case, 13
... Spring, 14 ... Nut, 15 ... Adjustment bolt, 16 ... Thrust bearing, 17 ...
Cylindrical wall, 18, 19... Seal, 20... Ball bearing, 21... Support ring, 33... Leaf spring, 34... First spur gear, 37... Second spur gear.
Claims (1)
部旋回体に固着した駆動源により駆動されるスイ
ングピニオンとの噛合により、前記上部旋回体を
下部走行体に対して旋回自在に支持した油圧式掘
削機において、前記スイングピニオンの駆動軸に
よつて駆動される摩擦車を枢着したブラケツトを
前記上部旋回体に支持し、該ブラケツトを弾性体
により付勢して前記摩擦車の外周面を前記下部走
行体に圧接転動させると共に、前記摩擦車の外径
と、前記下部走行体における摩擦車の転動面の平
均径との比が、前記摩擦車と前記上部旋回体の各
回転数の逆比となることを特徴とする油圧式掘削
機における旋回サークル部のガタ防止装置。 (2) 前記第(1)の請求項において、摩擦車は歯車
伝達機構を介してスイングピニオンの駆動軸によ
つて駆動されることを特徴とする油圧式掘削機に
おける旋回サークル部のガタ防止装置。[Claims for Utility Model Registration] (1) The upper rotating body is connected to the lower rotating body by meshing the circle gear fixed to the lower rotating body with the swing pinion driven by the drive source fixed to the upper rotating body. In the hydraulic excavator, a bracket on which a friction wheel driven by the drive shaft of the swing pinion is pivotally mounted is supported on the upper revolving body, and the bracket is biased by an elastic body. The outer peripheral surface of the friction wheel is pressed against and rolled against the lower traveling body, and the ratio of the outer diameter of the friction wheel to the average diameter of the rolling surface of the friction wheel in the lower traveling body is such that the friction wheel and the A rattling prevention device for a swing circle in a hydraulic excavator, characterized in that the rotation speeds of the upper swing body are inversely proportional to each other. (2) The rattling prevention device of a swing circle portion in a hydraulic excavator according to claim (1), wherein the friction wheel is driven by a drive shaft of a swing pinion via a gear transmission mechanism. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2036490U JPH0441553U (en) | 1990-02-28 | 1990-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2036490U JPH0441553U (en) | 1990-02-28 | 1990-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0441553U true JPH0441553U (en) | 1992-04-08 |
Family
ID=31523455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2036490U Pending JPH0441553U (en) | 1990-02-28 | 1990-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0441553U (en) |
-
1990
- 1990-02-28 JP JP2036490U patent/JPH0441553U/ja active Pending
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