Fully-hydraulic electric fork truck

An electric forklift, full hydraulic technology, applied in the direction of lifting devices, etc., can solve the problems of electric switches, relays, fuel tank volume limitations, maintenance difficulties, etc., to improve reliability and service life, improve safety performance, and reduce labor intensity Effect
CN1142085CInactive Publication Date: 2004-03-17ZHEJIANG JIALI TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG JIALI TECH
Publication Date
2004-03-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a full-hydraulic electric fork lifter, which comprises lifter body, double oil tank, motor variable displacement pump connected with motor, multiway valve, steering device, inclined lifting device and walking-driving device. It is characterized by that the said motor is single one, and said multiway valve comprise incline valve, lifting valve, walking valve and control valve, said four valves are connected into one body by a connecting component, said multiway valve is equipped with a main oil hole communicated with the said four valves and two brach oil holes, and between said two branch oil holes and variable displacement pump a precedence valve is set to implement single motor driving, hydraulic speed regulation.
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Description

【Technical field】

[0001] The invention relates to a counterweight electric forklift, in particular to a full hydraulic electric forklift. 【Background technique】

[0002] Most of the existing counterbalanced electric forklifts adopt a three-motor configuration scheme, that is, the traveling drive device, the lifting device and the steering device are driven by one motor respectively. The arrangement of the three motors and their relatively complicated transmission mechanisms make the internal structure of the forklift crowded. , Difficult to assemble, difficult to maintain, and a large number of electric switches and relays required to operate the three motors. During operation, the three motors start and brake frequently, which not only affects the life of the motor transmission mechanism, but also has a large starting current, over-discharge of the power supply, high energy consumption, and low efficiency, which affect the production efficiency of the operation. The chassi...

Claims

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