JPH01175977U

JPH01175977U -

Info

Publication number: JPH01175977U
Application number: JP6948388U
Authority: JP
Priority date: 1988-05-25
Filing date: 1988-05-25
Publication date: 1989-12-14

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案にかかるトラツクフレームを
そなえた下部走行体の側面図、第２図は第１図の
Ｂ―Ｂより見た断面図、第３図は油圧シヨベルの
側面図、第４図は従来技術のトラツクフレームを
有する下部走行体の側面図、第５図は第４図のＡ
―Ａより見た断面図である。１，１７……下部走行体、４……クローラ、５
，１６……トラツクフレーム、８……上部転輪、
９……下部転輪、１３……トラツクリンク、１４
，２０……下部転輪取付板。 Figure 1 is a side view of a lower traveling body equipped with a truck frame according to this invention, Figure 2 is a cross-sectional view taken from BB in Figure 1, Figure 3 is a side view of the hydraulic excavator, and Figure 4. 5 is a side view of an undercarriage having a conventional track frame, and FIG.
- It is a sectional view seen from A. 1, 17... lower running body, 4... crawler, 5
, 16...Truck frame, 8...Upper wheel,
9... Lower roller wheel, 13... Truck link, 14
, 20...Lower roller mounting plate.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

１対のトラツクフレーム前端部にアイドラを、
後端部に駆動ホイールを、上部には上部転輪を、
下部には下部転輪を配置したクローラ式下部走行
体において、上記トラツクフレームの頂上尾根部
の高さ位置をトラツクリンクの転輪転動面と最少
限の隙間をもたせるようにトラツクリンクの上記
転輪転動面に沿つて形成し、またトラツクフレー
ム左右両側の垂直板部を下方に垂延せしめてその
垂直板部の下端が下部転輪取付板よりさらに下方
に位置するように設定せしめ、下部走行体走行時
にトラツクフレーム上側および下部転輪側に泥土
岩石などのたい積、かみ込みなどを阻止可能に構
成したことを特徴とするトラツクフレームの構造
。 Install an idler at the front end of a pair of truck frames.
Drive wheel at the rear end, upper roller at the top,
In a crawler-type lower traveling body in which a lower roller is arranged at the lower part, the roller roller of the truck link is arranged so that the height position of the top ridge of the truck frame has a minimum clearance with the roller rolling surface of the truck link. The lower running body is formed along the moving surface, and the vertical plate portions on both left and right sides of the truck frame are made to extend downward so that the lower ends of the vertical plate portions are located further below the lower roller mounting plate. The structure of a truck frame is characterized in that it is configured to prevent mud and rocks from accumulating or getting caught on the upper side and lower wheel side of the truck frame when the truck is running.