JPS5989162U

JPS5989162U - Wheel-type hydraulic excavator axle swing device

Info

Publication number: JPS5989162U
Application number: JP18476682U
Authority: JP
Inventors: 山崎　要寿; 勝利梅村
Original assignee: 日立建機株式会社
Priority date: 1982-12-08
Filing date: 1982-12-08
Publication date: 1984-06-16
Also published as: JPH0137001Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は、ホイール式油圧ショベルの全体側面図、第２
図乃至第６図は本考案に係るホイ」ル式油圧ショベルの
車軸揺動装置の一実施例を示し、第２図は本考案の車軸
揺動装置を装備したホイール式油圧ショベルの一部正面
図（ただしＡ部を除く部分は従来構造と共通）、第３図
は第２図におけるＡ部拡大図、第４図は第３図における
Ｂ矢視図、第５図は油圧ラムシリンダの断面図、第６図
は油圧ラムシリンダのラムロッドにかかる荷重の説明図
である。第７図は従来の車軸揺動装置の要部の一部正面
図、第８図は第７図におけるＣ矢視図である。第９図は
他の従来の車軸揺動装置の要部の一部正面図、第１０図
は第９図におけるＤ矢視図、第１１図は第９図における
油圧ラムシリンダのラムロッドにかかる荷重の説明図で
ある。２・・・・・・上部旋回体、３・・・・・・下部走行体
、５・・・・・・シャーシ、７・・・・・・揺動車軸、
８・・・・・・固定車軸、１１・・・・・・ビーム、１
２・・・・・・ピン、１３・・・・・・油圧ラムシリン
ダ、２０・・・・・・油室、２１．２１’、２１″・・
・・・・ラムロッド、２６・・・・・・凸状曲面部、２
７・・・・・・接続管。Figure 1 is an overall side view of the wheeled hydraulic excavator;
Figures 6 to 6 show an embodiment of the axle swinging device for a wheel-type hydraulic excavator according to the present invention, and Fig. 2 shows a partial front view of a wheel-type hydraulic excavator equipped with the axle swinging device of the present invention. Figure 3 is an enlarged view of part A in Figure 2, Figure 4 is a view taken in the direction of arrow B in Figure 3, Figure 5 is a cross section of the hydraulic ram cylinder. FIG. 6 is an explanatory diagram of the load applied to the ram rod of the hydraulic ram cylinder. FIG. 7 is a partial front view of the main parts of a conventional axle rocking device, and FIG. 8 is a view taken along arrow C in FIG. Fig. 9 is a partial front view of the main parts of another conventional axle rocking device, Fig. 10 is a view taken from arrow D in Fig. 9, and Fig. 11 is the load applied to the ram rod of the hydraulic ram cylinder in Fig. 9. FIG. 2... Upper rotating body, 3... Lower traveling body, 5... Chassis, 7... Rocking axle,
8...Fixed axle, 11...Beam, 1
2...Pin, 13...Hydraulic ram cylinder, 20...Oil chamber, 21.21', 21''...
... Ram rod, 26 ... Convex curved surface portion, 2
7... Connection pipe.

Claims

[Scope of utility model registration request]

Either the front axle or the rear axle is connected to the chassis of the lower traveling body by a pin so as to be swingable in a direction perpendicular to the traveling direction, and is integrally attached to the shaft connected by the pin or the shaft. In a wheeled hydraulic excavator having an axle swinging device in which a plurality of ram cylinders are interposed between a beam and a chassis, the ram cylinders having a planar lower end surface are fixed to both sides of the chassis, and the lower end surface of the ram is fixed to both sides of the chassis. An axle rocking device for a wheeled hydraulic excavator, characterized in that a convex curved surface is provided on a rocking axle or a beam corresponding to the ram, and the lower end surface of the ram and the convex curved surface come into contact with each other. .