JPH0441552U - - Google Patents
Info
- Publication number
- JPH0441552U JPH0441552U JP1344290U JP1344290U JPH0441552U JP H0441552 U JPH0441552 U JP H0441552U JP 1344290 U JP1344290 U JP 1344290U JP 1344290 U JP1344290 U JP 1344290U JP H0441552 U JPH0441552 U JP H0441552U
- Authority
- JP
- Japan
- Prior art keywords
- friction wheel
- conical
- lower traveling
- hydraulic excavator
- traveling body
- 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
- 230000002265 prevention Effects 0.000 claims description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Component Parts Of Construction Machinery (AREA)
Description
第１図は本考案の実施例にもとづく油圧式掘削
機における旋回サークル部のガタ防止装置の断面
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、
第２図は第１図ｂに対応する従来の技術を示す図
である。
１……下部走行体、１ａ……スプライン部、２
……上部旋回体、３……油圧モータ、４……スイ
ングピニオン、４ａ……円錐形摩擦車、５……ス
イングサークル、５ａ……サークルギヤ、５ｂ…
…支持リング、６……テーパ状摩擦車、７……ス
プリング。
FIG. 1 is a cross-sectional view of a rattling prevention device for a turning circle portion of a hydraulic excavator based on an embodiment of the present invention, where a is an overall side view of the hydraulic excavator, and b
is a detailed sectional view of the P section of a, c is a CC sectional view of b,
FIG. 2 is a diagram showing a conventional technique corresponding to FIG. 1b. 1... lower running body, 1a... spline part, 2
... Upper rotating body, 3 ... Hydraulic motor, 4 ... Swing pinion, 4a ... Conical friction wheel, 5 ... Swing circle, 5a ... Circle gear, 5b ...
...Support ring, 6...Tapered friction wheel, 7...Spring.
Claims (1)
体に旋回自在に支持されると共に、作業機を装着
した上部旋回体とで構成され、前記下部走行体に
固着したサークルギヤと、上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、前記上部旋回体を旋回させる油圧式掘
削機において、前記スイングピニオンと同軸上に
円錐形摩擦車を一体形成し、該円錐形摩擦車の円
錐面に内接するテーパ状摩擦車を、前記上部旋回
体の旋回軸と同軸で、且つスプライン嵌合により
上下動可能に下部走行体に装着すると共に、前記
円錐形摩擦車の円錐面とテーパ状摩擦車のテーパ
面との係合面には常時押付力が保持される構成と
した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。 The lower traveling body is equipped with a traveling device, and the upper rotating body is rotatably supported by the lower traveling body and is equipped with a working machine, and includes a circle gear fixed to the lower traveling body, and an upper rotating body. In a hydraulic excavator that rotates the upper revolving body by meshing with a swing pinion driven by a drive source fixed to the hydraulic excavator, a conical friction wheel is integrally formed coaxially with the swing pinion, and the conical friction wheel A tapered friction wheel inscribed in the conical surface of the conical friction wheel is mounted on the lower traveling body coaxially with the rotation axis of the upper rotating body and movable up and down by spline fitting, and the tapered friction wheel is inscribed in the conical surface of the conical friction wheel. 1. A rattling prevention device for a turning circle portion in a hydraulic excavator, characterized in that a pressing force is always maintained on a surface that engages with a tapered surface of a shaped friction wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1344290U JPH0441552U (en) | 1990-02-14 | 1990-02-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1344290U JPH0441552U (en) | 1990-02-14 | 1990-02-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0441552U true JPH0441552U (en) | 1992-04-08 |
Family
ID=31516855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1344290U Pending JPH0441552U (en) | 1990-02-14 | 1990-02-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0441552U (en) |
-
1990
- 1990-02-14 JP JP1344290U patent/JPH0441552U/ja active Pending