PROBLEM TO BE SOLVED: To provide a crawler type vehicle capable of improving the service life of a spring member of a crawler belt tension adjustment device.SOLUTION: A crawler belt tension adjustment device 16 for adjusting the tension of a crawler belt wound around an idler wheel 9 and a drive wheel 10 is installed in a side frame 7 of a hydraulic excavator 1. The crawler belt tension adjustment device 16 includes: a yoke 17 installed in the side frame 7 such that it may move forwards and rearwards and to which the idler wheel 9 is mounted; a tension adjusting cylinder 21 installed between a partition wall 15 provided in the side frame 7 and the yoke 17; and a spring member 25 installed between a spring receiving part 21A of the tension adjusting cylinder 21 and a spring receiving part 18A of the yoke 17, for energizing the yoke 17 in a direction away from the drive wheel 10. The crawler belt tension adjustment device 16 has a spring protective cover 28 which covers the spring member 25 from the lower side.SELECTED DRAWING: Figure 4
【課題】履帯張り調整装置のばね部材の寿命を向上することができる装軌式車両を提供する。【解決手段】油圧ショベル1のサイドフレーム7内には、遊動輪9と駆動輪10とに巻回する履帯の張りを調整する履帯張り調整装置16が設けられている。履帯張り調整装置16は、サイドフレーム7内に前,後方向に移動可能に設けられ遊動輪9が取付けられたヨーク17と、サイドフレーム7内に設けられた隔壁15とヨーク17との間に設けられた張力調整シリンダ21と、張力調整シリンダ21のばね受部21Aとヨーク17のばね受部18Aとの間に設けられヨーク17を駆動輪10から離れる方向に付勢するばね部材25とを含んで構成されている。履帯張り調整装置16には、ばね部材25を下側から覆うばね保護カバー28が設けられている。【選択図】図4
CRAWLER TYPE VEHICLE
装軌式車両
2018-08-30
Patent
Elektronische Ressource
Japanisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |