JPH0399066U

JPH0399066U -

Info

Publication number: JPH0399066U
Application number: JP763690U
Authority: JP
Priority date: 1990-01-30
Filing date: 1990-01-30
Publication date: 1991-10-16

Description

[Brief explanation of drawings]

第１図および第２図は本考案の実施例に係り、
第１図は旋回モータ装置を示す要部断面図、第２
図は第１図の−線矢視方向の断面図、第３図
ないし第５図は従来技術に係り、第３図は油圧シ
ヨベルの外観図、第４図は旋回装置の一部破断側
面図、第５図は旋回モータ装置を示す要部断面図
である。１……下部走行体、２……旋回装置、３……上
部旋回体、６……内輪、６Ａ……内歯歯車、７…
…外輪、８……鋼球、９……旋回輪、１０……旋
回モータ装置、１３……ケーシング、１４……出
力軸、１５……ピニオン、１５Ａ……外歯車、１
９……グリースバス、２０……グリース、３１…
…グリース戻しガイド、Ａ……噛合部。 1 and 2 relate to an embodiment of the present invention,
Figure 1 is a sectional view of the main parts of the swing motor device, Figure 2
The figure is a sectional view taken in the direction of the - line arrow in Figure 1, Figures 3 to 5 relate to the prior art, Figure 3 is an external view of a hydraulic excavator, and Figure 4 is a partially cutaway side view of the swing device. , FIG. 5 is a sectional view of a main part of the swing motor device. DESCRIPTION OF SYMBOLS 1... Lower running body, 2... Swivel device, 3... Upper rotating body, 6... Inner ring, 6A... Internal gear, 7...
... Outer ring, 8 ... Steel ball, 9 ... Turning ring, 10 ... Turning motor device, 13 ... Casing, 14 ... Output shaft, 15 ... Pinion, 15A ... External gear, 1
9...Grease bath, 20...Grease, 31...
...Grease return guide, A...meshing part.

Claims

[Scope of utility model registration request]

It has a lower traveling body and an upper rotating body rotatably supported by the lower traveling body via a rotating device, the rotating device is fixed to the lower traveling body side, and an internal gear is formed on the inner peripheral surface. a rotating ring consisting of an inner ring fixed to the upper revolving body and an outer ring rotatably engaged with the inner ring via a steel ball; a swing motor device having a pinion that rotates, a grease bath that surrounds a meshing portion between the internal gear and the pinion, and a seal device that prevents grease in the grease bath from entering the swing motor device. The swing type construction machine is characterized in that a grease return guide is provided on the swing motor device side to return grease pushed upward from the meshing portion between the internal gear of the inner ring and the pinion into the grease bath. A swing type construction machine.