Full hydraulic electric forklift electric system

A technology for electric forklifts and electrical systems, applied in the direction of lifting devices, etc., can solve the problems of complex connection lines, large starting current, and large energy consumption, and achieve the effects of low starting energy consumption, lower energy consumption of the whole machine, and smooth state.

Inactive Publication Date: 2010-01-06
ZHEJIANG JIALI TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved and the technical task proposed by the present invention are to overcome the defects of large starting current, high energy consumption, high temperature and complicated connection lines in the electrical system of the prior art, and provide a new electrical system of a fully hydraulic electric forklift

Method used

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  • Full hydraulic electric forklift electric system
  • Full hydraulic electric forklift electric system

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Embodiment Construction

[0019] Such as figure 1 The electrical system of the fully hydraulic electric forklift shown includes battery power supply 61, key switch 68, a motor 9, and an acousto-optic system. The battery power supply 61 is used as an energy source to divide the power supply into high-voltage power supply and low-voltage power supply through a DC-DC transformer 615 for output: The low-voltage power supply connects the sound and light system through the key switch 68, a controller 62 mainly used for controlling the motor 9, and further connects the turning delay device 611 connected with the controller 62 through the start switch 610; the high-voltage power supply connects the controller 62 and is controlled by the main contactor 69 of the controller 62 to connect the motor 9, and the controller 62 is connected with an accelerator 65 and a micro travel switch 621. And: the excitation mode of motor 9 is series excitation, and the duty cycle is 60 minutes. A fault indicator 64 is connected ...

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Abstract

The overall hydraulic electric forklift electric system comprises the accumulator source, key switch, generator, audio-optical system, featuring in the accumulator as the energy source being divided by DC-DC potential transformer and low voltage electric source in two branches, with the low voltage source contacting the audio optical system through the said key switch, a controller mainly used for controlling the generator, the steering extender through turning on the switch and linking with the said controller, the high voltage electric power contacting the said controller and controlling the main contact to access the said generator, with the said controller connected with accelerator and micro stroke switch. It is a level free speed adjusting system made of the controller, generator, accelerator, with the traveling system running freely, stable, reliable from low speed to high speed, without energy waste.

Description

technical field [0001] The invention relates to an electric forklift, in particular to an electrical system of a full hydraulic electric forklift. Background technique [0002] The electrical design form of the existing hydraulic electric forklift system is based on the motor driving the variable pump at a constant speed of 1650rpm as the power source. The motor driving the variable pump is only used for the forklift lifting hydraulic system, and the continuous working time Short, only 15 minutes working system, the motor adopts the shunt excitation mode, and its running speed is in a constant speed state, resulting in defects such as large starting current of the whole machine, high energy consumption, high temperature, and short running time of the forklift; and the control of the motor is through Realized by PLC, this electrical control method not only makes the function of the forklift imperfect, but also complicates the connection line (because the electric forklift con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66F9/24
Inventor 陈勇
Owner ZHEJIANG JIALI TECH
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