JPH0288877U

JPH0288877U -

Info

Publication number: JPH0288877U
Application number: JP16913788U
Authority: JP
Priority date: 1988-12-28
Filing date: 1988-12-28
Publication date: 1990-07-13

Description

[Brief explanation of drawings]

第１図ａは本考案実施例の取付状態を示す斜視
図、第１図ｂ及びｃは、ａのＢ―Ｂ断面及びＣ―
Ｃ断面図、第２図は第１図の作業機フレームと主
フレームの組立状態を示す側面図、第３図は第２
図の平面図、第４図は従来の取付状態を示す斜視
図、第５図は第４図の作業機フレームと主フレー
ムの組立状態を示す側面図、第６図は第５図の平
面図、第７図イ，ロ，ハ，ニは従来のブラケツト
にかかる力と回転モーメント及び主フレームにか
かる捩りモーメント説明図である。１……主フレーム、２……主フレーム前方部、
３……主フレーム後方部、４……クロスバー、５
……クロスバー前面板、６……クロスバー後面板
、７ａ，７ｂ，８……クロスバー接合部材、９…
…シリンダ用ブラケツト、１０……作業機用ブラ
ケツト、１１，１２……ボルト、２５……作業機
フレーム、２７……シリンダ、２９，３０……ピ
ン、３３……作業機ルームのシリンダ装着支点、
３４……トラツクシユー、３５……イコライザバ
ー、３６……トラツクフレーム、Ａ……主フレー
ム前方部の幅、Ｂ……主フレーム後方部の幅、ａ
，ａ１……オーバハング量（主フレーム中心と荷
重点の偏心量）。 FIG. 1a is a perspective view showing the installed state of the embodiment of the present invention, and FIGS.
C sectional view, Figure 2 is a side view showing the assembled state of the working machine frame and main frame in Figure 1, and Figure 3 is the 2nd
4 is a perspective view showing the conventional mounting state, FIG. 5 is a side view showing the assembled state of the work machine frame and main frame in FIG. 4, and FIG. 6 is a plan view of FIG. 5. , FIGS. 7A, 7B, 7C and 7 are explanatory diagrams of the force and rotational moment applied to the conventional bracket and the torsional moment applied to the main frame. 1...Main frame, 2...Main frame front part,
3...Rear part of main frame, 4...Cross bar, 5
...Crossbar front plate, 6...Crossbar rear plate, 7a, 7b, 8...Crossbar joint member, 9...
... Bracket for cylinder, 10 ... Bracket for work machine, 11, 12 ... Bolt, 25 ... Work machine frame, 27 ... Cylinder, 29, 30 ... Pin, 33 ... Cylinder mounting fulcrum in work machine room,
34...Truck shoe, 35...Equalizer bar, 36...Track frame, A...Width of the front part of the main frame, B...Width of the rear part of the main frame, a
, a1...Amount of overhang (amount of eccentricity between the center of the main frame and the load point).

Claims

[Claims for Utility Model Registration] (1) A main frame divided into a pair of front parts and a pair of rear parts, and an equalizer bar that connects the main frame and the truck frame and supports the oscillation function of the truck frame. The main frame, front part, and work equipment bracket are attached to the front of the cross bar (hereinafter referred to as the cross bar), and the rear part of the main frame with the cylinder bracket mounted is attached to the rear side. The main frame structure of a bulldozer. (2) Claim 1, wherein the width of the front part of the pair of main frames is narrower than the width of the rear part of the pair of main frames.
The main frame structure of the bulldozer described.