Main arm structure of fork device

• Main Authors: SHI FENGHUA, CAO LEI, GAO YE, SHANG FEI, SONG HONGBING, JIA JIPENG
• Format: Patent
• Language: Chinese; English
• Published: 04.04.2012
• Subjects: HAULING; HOISTING; HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD; LIFTING; PERFORMING OPERATIONS; TRANSPORTING

The utility model relates to a main arm structure of a fork device, belonging to a main arm structure of engineering machinery. An upper cover board of an main arm is welded at the inner side of a U-shaped main arm plate to form a high-strength box body structure; second shaft sleeves are respectively welded at two sides of the rear surface of a wall board of the U-shaped main arm plate; a bending cover board is welded at one side of the rear surface of the wall board of the U-shaped main arm plate; a crescent plate is welded on the rear surface of a main shaft sleeve on the wall board of the U-shaped main arm plate; a rear web, a rear inner web and a fourth shaft sleeve are respectively welded at one side of the rear surface of the U-shaped main arm plate; a cylinder supporting plate is symmetrically welded on a left web and a right web plate; a third shaft sleeve is welded on the left web and the right web, a front lower rib plate is welded in the middle of a front side plate of the lower part of the front