JPH0165355U

JPH0165355U -

Info

Publication number: JPH0165355U
Application number: JP1987161073U
Authority: JP
Priority date: 1987-10-20
Filing date: 1987-10-20
Publication date: 1989-04-26

Description

[Brief explanation of the drawing]

第１図はこの考案にかかる旋回装置の要部断面
側面図、第２図は第１図のＣより見た平面図、第
３図は大型油圧シヨベルの側面図、第４図は第３
図のＡ―Ａより見た図、第５図は第４図のＢ―Ｂ
より見た図である。１，１９……上部旋回体、３，１５……旋回装
置、６，７，１６，１７……旋回モータ付減速機
、８……旋回軸受、９……内輪、１１……外輪、
１８′，１８……フランジ部、２０……取付座。 Fig. 1 is a cross-sectional side view of the main parts of the swing device according to this invention, Fig. 2 is a plan view seen from C in Fig. 1, Fig. 3 is a side view of a large hydraulic excavator, and Fig. 4 is a side view of a large hydraulic excavator.
View from A-A in the figure, Figure 5 is B-B in Figure 4
This is a closer view. 1, 19...Upper rotating body, 3,15...Swivel device, 6,7,16,17...Reducer with swing motor, 8...Swivel bearing, 9...Inner ring, 11...Outer ring,
18', 18... flange portion, 20... mounting seat.

Claims

[Scope of utility model registration request]

An inner ring equipped with an internal gear is fixed to the lower running body, an outer ring of the upper rotating body is fixed, and a plurality of rolling elements are fitted on the same circumference between the outer ring and the inner ring, and one , a swing device having a structure in which pinions of a plurality of speed reducers with swing motors installed in the upper swing structure are engaged with an internal gear on the lower traveling structure, and the upper swing structure is rotated by the rotational force of the pinions,
A swing device for construction machinery, characterized in that the plurality of reducers with swing motors are arranged close to each other on the upper revolving body, and the flange portions of the plurality of reducers are formed into a common integral type. .