Internal combustion forklift steering system and internal combustion forklift

Abstract

The invention discloses an internal combustion forklift steering system. The internal combustion forklift steering system comprises an oil tank, a main working oil pump, a priority valve, a full hydraulic steering device and a steering oil cylinder which are connected in sequence. The internal combustion forklift steering system further comprises an emergency steering device. An oil inlet of the emergency steering device is connected with the oil tank, an oil outlet of the emergency steering device is connected with an oil inlet of the full hydraulic steering device, the emergency steering device comprises an emergency oil pump and a motor for driving the emergency oil pump, and the motor is connected with a storage battery of an internal combustion forklift. When conventional steering isabnormal and failed due to an engine fault, the motor can be started, so that the pressure is provided for the full hydraulic steering device through the emergency oil pump, the forklift steering function is continuously achieved, and therefore potential safety hazards caused by sudden failure of the conventional steering function are avoided; and meanwhile, when the forklift stops and towing is needed, the emergency steering device can be manually controlled, and the steering function during the towing is achieved. The invention further discloses the internal combustion forklift including thesystem.

Description

technical field [0001] The invention relates to the field of forklift equipment, in particular to a steering system for an internal combustion forklift. Furthermore, the invention also relates to an internal combustion forklift comprising the system described above. Background technique [0002] The internal combustion forklift has good transportation performance and is widely used in various production and transportation workshops to ensure the transportation effect. It is driven by a hydraulic system to complete steering and braking actions. Especially for large-tonnage internal-combustion forklifts, they have large self-weight and high inertia. During driving, if a fault occurs that causes the steering system to fail, the forklift cannot turn in time, which may cause serious consequences. [0003] At the same time, when the vehicle failure leads to the loss of the steering power source and the forklift needs to be towed, because the tonnage of the large-tonnage forklift ...

AI Technical Summary

Problems solved by technology

Especially for large-tonnage internal combustion forklifts, which have a large self-weight and large inertia, during driving, if a fault occurs that causes the steering system to fail, the forklift cannot turn in time, which may cause serious consequences

[0003] At the same time, when the vehicle fails and the steering power source is lost and the forklift needs to be towed, because the tonnage of the large-tonnage forklift is large and the weight is heavy, if it cannot turn, it will be difficult to tow

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