公开(公告)号：US5026246A

公开(公告)日：1991-06-25

申请号：US440935

申请日：1989-11-22

Applicant: Tod A. Bay ,  Jeffry R. Frahm ,  David F. Roesler ,  Robert Gilbert

Inventor： Tod A. Bay ,  Jeffry R. Frahm ,  David F. Roesler ,  Robert Gilbert

IPC: E02F9/22

CPC classification number: E02F9/2203

Abstract: A backhoe pivotally supported from a prime mover is disclosed wherein the hydraulic cylinders operably connected to the outrigger stabilizers are provided with a detent to maintain the outrigger stabilizers in an elevated transport position until being pressurized to extend the cylinders and, thereby, rotate the stabilizers into a ground engaging position. The detent is in the form of a projection extending inwardly from the barrel of the outrigger stabilizer cylinder and positioned for engagement with a deformable detent ring when the piston is moved to the fully retracted position. The detent includes a relief to permit the flow of hydraulic fluid past the engagement between the detent ring and the projection so that hydraulic cylinder will not become hydraulically locked.

Abstract translation: 公开了一种从原动机枢转地支撑的反铲，其中可操作地连接到外伸支架稳定器的液压缸设置有制动器，以将外伸支架稳定器保持在升高的运输位置，直到被加压以延伸气缸，并由此将稳定器旋转 地面接合位置。 制动器是从外伸支架稳定器筒的筒体向内延伸的突起的形式，并且当活塞移动到完全缩回位置时，其定位成与可变形的制动环接合。 制动器包括一个浮力，以允许液压流体流过止动环和突起之间的接合，使得液压缸不会变为液压锁定。