JPH03122145U

JPH03122145U -

Info

Publication number: JPH03122145U
Application number: JP3199990U
Authority: JP
Priority date: 1990-03-28
Filing date: 1990-03-28
Publication date: 1991-12-13

Description

[Brief explanation of drawings]

第１図乃至第３図は本考案の請求項１にかかる
旋回装置のバツクラツシ除去機構の一実施例を示
し、第１図は平面図、第２図は第１図の側面図、
第３図は第２図のＰ部詳細図、第４図乃至第６図
は本考案の請求項２の旋回装置のバツクラツシ除
去機構の一実施例を示し、第４図は平面図、第５
図は第４図の側面図、第６図は第４図のＡ−Ａ断
面図、第７図乃至第９図は本考案の請求項３の旋
回装置のバツクラツシ除去機構の一実施例を示し
、第７図は平面図、第８図は第７図の側面図、第
９図は第７図のＢ−Ｂ断面図である。１……上部旋回体、２……旋回減速機、２ａ…
…フランジ部、３……外歯車、４……フレーム、
５……内歯車、６……偏心プレート、７……取り
付け穴、９……付勢手段、１４，１５……ブロツ
ク、２１……上部旋回体、２２……旋回減速機、
２２ａ……フランジ部、２２ｂ……側面、２３…
…取り付け穴、２４……弾性体、２５……押さえ
プレート、２７……ボルト、３１……上部旋回体
、３２……旋回減速機、３２ａ……凸部、３３…
…取り付け穴、３４……シール、３５……ピン、
３６……ブロツク、３７……凸片。 1 to 3 show an embodiment of a backlash removal mechanism for a rotating device according to claim 1 of the present invention, in which FIG. 1 is a plan view, FIG. 2 is a side view of FIG. 1,
FIG. 3 is a detailed view of the P part in FIG.
The figure shows a side view of FIG. 4, FIG. 6 is a sectional view taken along the line A-A in FIG. 4, and FIGS. , FIG. 7 is a plan view, FIG. 8 is a side view of FIG. 7, and FIG. 9 is a BB sectional view of FIG. 7. 1... Upper revolving structure, 2... Swing reducer, 2a...
...Flange part, 3...External gear, 4...Frame,
5...Internal gear, 6...Eccentric plate, 7...Mounting hole, 9...Biasing means, 14, 15...Block, 21...Upper rotating body, 22...Swivel reducer,
22a...flange portion, 22b...side surface, 23...
... Attachment hole, 24 ... Elastic body, 25 ... Holding plate, 27 ... Bolt, 31 ... Upper revolving body, 32 ... Swing reducer, 32a ... Convex part, 33 ...
...Mounting hole, 34...Seal, 35...Pin,
36...Block, 37...Convex piece.

Claims

[Scope of claim for utility model registration] 1. Due to the meshing of the external gear of the swing reducer on the upper rotating body side and the internal gear of the frame on the lower rotating body side,
In a swing device for a power shovel in which an upper rotating body is rotated with respect to a lower traveling body, the axis of the swing reducer is eccentric to the rotation center of an eccentric plate, and the rotating gear is rotated into a mounting hole provided in the eccentric plate. Removal of backlash in a swing device, characterized in that urging means is provided between the upper revolving body and the eccentric plate to urge the external gear and the internal gear in a direction to remove backlash between the external gear and the internal gear. mechanism. 2 Due to the meshing of the external gear of the swing reducer on the upper rotating body side and the internal gear of the frame on the lower rotating body side,
In a power shovel swing device for rotating an upper rotating body relative to a lower traveling body, an elastic body is provided between the outer periphery of the swing reducer and a mounting hole for the swing reducer provided on the upper rotating body side. At the same time, the flange portion provided on the swing reducer is sandwiched by a pressing plate provided on the upper revolving structure side, and the swing reducer is attached so as to be constantly biased toward the outside of the upper revolving structure. A backlash removal mechanism for a turning device, characterized in that it removes backlash between the external gear and the internal gear. 3 Due to the meshing of the external gear of the swing reducer on the upper rotating body side and the internal gear of the frame on the lower rotating body side,
In a power shovel swing device configured to swing an upper rotating body relative to a lower traveling body, a seal is provided between the outer periphery of the swing reducer and a mounting hole for the swing reducer provided on the upper rotating body side. , and a convex portion provided on the swing reducer and the upper rotating body are connected by a pin, so that the swing reducer can be rotated around the pin, and between the upper rotating body and the swing reducer, A backlash removal mechanism for a turning device, characterized in that a biasing means for biasing in a direction to eliminate backlash between the external gear and the internal gear is provided.