A forklift lifting mechanism

Abstract

The invention provides a forklift lifting mechanism applied to the technical field of forklifts. A first chain wheel (6-1) is arranged at the top of a hoisting oil cylinder (5-1) of the forklift lifting mechanism; a second chain wheel group (8-2) is arranged at the lower part of an inner portal (3); a second chain wheel (6-2) is arranged at the top of the inner portal (3); one end of a first chain (7-1) is connected with an outer portal (4); the first chain (7-1) rounds the second chain wheel group (8-2) after rounding the first chain wheel (6-1), and is connected with the second chain wheel group (8-2) after rounding the first chain wheel group (8-1); one end of a second chain (7-2) is connected with the top of the outer portal (4); the other end of the second chain (8-2) is connected with a fork arm carrier (2) after rounding the second chain wheel (6-2); and a fork (1) is arranged on the fork arm carrier (2). With the adoption of the forklift lifting mechanism, the cargo lifting efficiency of a forklift is improved, and the length of the hoisting oil cylinder is decreased.

Description

technical field [0001] The invention belongs to the technical field of forklifts, and more specifically relates to a forklift lifting mechanism capable of lifting goods. Background technique [0002] The forklift lifting mechanism is also the working mechanism of the forklift. In the prior art, the lifting mechanism of a forklift is mainly composed of a fork, a fork frame, an outer mast, an inner mast, a sprocket, a chain, a lifting cylinder, a tilting cylinder and the like. The lower end of the outer mast is hinged on the car body, and the middle part is hinged with the tilt cylinder. The inner mast has rollers embedded in the outer mast. The fork frame has rollers and is embedded in the inner mast. Two lifting oil cylinders are on both sides of the outer mast, and the top of the piston rod is fixed with the sprocket. One end of the chain on the sprocket is fixed on the outer mast, and the other end is fixed on the fork frame. When the top of the piston works together ...

AI Technical Summary

Problems solved by technology

At present, the lifting height of domestic forklifts is about 3 to 7 meters, and the highest is 9 meters. This will inevitably make the lifting height of the lifting cylinder very large, requiring more hydraulic oil, and the cost is relatively high; Connected, the force is twice the gravity of the inner mast, fork frame and cargo, so the strength of the piston rod and the pressure of the hydraulic oil are required to be relatively large, and it needs to consume more internal energy of the forklift, which consumes more fuel; the strength is higher The cost of the hydraulic cylinder is relatively high

In addition, the height of the door frame is very large, the passability is poor, and the scope of application is not wide enough

For example, Chinese patent CN102107836A discloses a "new type of forklift mast". The disclosed technical solution can only reduce the length of the hydraulic cylinder, but the force is still very large, and the rigidity of the hydraulic cylinder is very high, and the required cost is still very high.

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