Structural design for light forklift gantry system

Abstract

The invention discloses the structural design for a light forklift gantry system. An outer rectangular steel tube and an inner rectangular steel tube which are arranged at intervals of 5 mm are used for replacing an inner-layer gantry and an outer-layer gantry of a forklift, and a forked frame is arranged on the outer-layer pipe in a sleeving mode. When the forklift operates, the forked frame moves up and down along the outer-layer pipe; loads are transmitted to the outside of the outer-layer pipe through rolling wheels in a couple moment mode; and upper action points are at two corner angles of the back side of the outer-layer pipe, and lower action points are at two corner angles of the front side of the outer-layer pipe. The outer-layer pipe moves up and down along the inner-layer pipe and transmits the couple moment to the inner-layer pipe, the lower portion acts on two corner angles of the outer front side of the inner-layer pipe through the rolling wheels, and the upper portion acts on rolling wheels on the back side of the top of the inner-layer pipe through the pipe inner wall. By means of the structural design, the weight of the gantry system is decreased, the flexibility of the forklift is improved, and the production cost is reduced; and meanwhile, gantry vertical columns are installed in the 1 / 3 position of the right side of a shaft base, and the visual disturbance of a driver is eliminated on the premise that the overall balance of the forklift is not affected.

Description

Technical field [0001] The utility model relates to the structural design of a door frame system of a light forklift. Background technique [0002] The inner and outer masts of ordinary forklifts are respectively composed of left and right columns, connected by different numbers of beams to form a portal frame, and then nested together, relying on the rollers installed on the inner and outer masts to make the inner mast along the The fork moves along the column of the outer mast, and the fork moves along the inner mast through the rollers. When the forklift is working, the rollers transmit the load to the inner mast in the form of couple moments, and the inner mast acts on the outer mast in the same way. The section of the gantry column usually has C shape, I shape, J shape and L shape, and the roller will form a large moment on the guide groove, which requires the gantry column to have a higher thickness to meet the strength requirements. Increase the weight of the front ...

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