Heavy one-stage door frame

Abstract

The invention discloses a heavy one-stage door frame. The door frame comprises an outer door frame assembly, a goods blocking frame assembly is connected to the outer door frame assembly in a slidingmode, the outer door frame assembly comprises a right steel channel assembly and a left steel channel assembly which are arranged in a bilateral symmetry mode, and the right steel channel assembly andthe left steel channel assembly comprise a composite rolling wheel web; a composite roller inner track plate and a composite roller outer track plate are fixedly connected to the inner side of the composite rolling wheel web, composite rolling wheels are rotatably connected to composite rolling wheel mounting plates, and side rolling wheels are rotatably connected to side rolling wheel mounting plates; and the composite rolling wheels are clamped between the composite rolling wheel inner track plate and the composite rolling wheel outer track plate, and the side rolling wheel track plate is clamped between the side rolling wheels and the composite rolling wheel mounting plates. According to the door frame, the side rolling wheels and the composite rolling wheels are arranged, and an innerdoor frame in a traditional forklift door frame is omitted, so that the forklift door frame is simpler, the landing full height and the ground clearance of a fork arm carrier of a forklift are reduced, the use range of the forklift is enlarged, and the use environment of a ship can be well used.

Description

technical field [0001] The invention relates to the technical field of forklift masts, in particular to a heavy-duty primary mast. Background technique [0002] With the advancement of science and technology, the tonnage of forklifts used for handling on ships is increasing. In order to improve efficiency, heavy-duty forklifts are used more and more widely. Among them, the full height of the landing and the minimum ground clearance are two items of forklifts Important parameters, landing height, that is, the distance from the top of the mast to the ground, ground clearance, that is, the forklift mast is in a vertical state on the horizontal ground, and the distance from the lower end of the mast to the ground, but the landing of the working device of the heavy forklift The overall height and the minimum ground clearance are often too large to be widely used, so there is an urgent need for a heavy-duty mast to replace the existing conventional mast. Contents of the inventio...

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Problems solved by technology

[0002] With the advancement of science and technology, the tonnage of forklifts used for handling on ships is increasing. In order to improve efficiency, heavy-duty forklifts are used more and more widely. Among them, the full height of the landing and the minimum ground clearance are two items of forklifts Important parameters, landing height, that is, the distance from the top of the mast to the ground, ground clearance, that is, the forklift mast is in a vertical state on the horizontal ground, and the distance from the lower end of the mast to the ground, but the landing of the working device of the heavy forklift The overall height and the minimum ground clearance are often too large to be widely used, so there is an urgent need for a heavy-duty mast to replace the existing conventional mast

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