Dual-mode electric excavator facilitating cable collection and dual-mode driving method thereof

An electric excavator, dual-mode technology, applied in the field of dual-mode electric excavator, dual-mode drive, can solve problems such as potential safety hazards, inconvenient charging, and serious rear bias of the overall center, so as to ensure the safety of use, improve flexibility, Guarantee the effect of load-bearing capacity and safety

Active Publication Date: 2020-01-14
安徽国钜工程机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these cable restraint devices solve the problems of short mileage and inconvenient charging of electric excavators to a certain extent, they also bring many potential safety hazards to excavator engineering operations.
For example, when the electric excavator is performing slewing operation, due to the influence of the fixedly installed cable restraint device, the problem of slewing interference is caused; when the electric excavator is climbing, it will cause the overall center to be biased seriously, limiting the climbing ability of the excavator, or even reducing The stability of excavator climbing and driving, leading to accidents

Method used

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  • Dual-mode electric excavator facilitating cable collection and dual-mode driving method thereof
  • Dual-mode electric excavator facilitating cable collection and dual-mode driving method thereof
  • Dual-mode electric excavator facilitating cable collection and dual-mode driving method thereof

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Embodiment 1

[0072] see Figure 1-7 , this implementation provides a dual-mode electric excavator that is convenient for bundled cables, which can be applied in various excavation environments and meet different power supply conditions. The dual-mode drive electric excavator can realize two modes of operation, in one mode, the electric energy provided by the external three-phase power supply 9 is used, and in the other mode, the electric energy stored in itself is directly used . Wherein, the dual-mode drive electric excavator includes an excavator body 1, a hydraulic system 2, a power output system 7, an energy system 6, a switching device and a programmable controller.

[0073] read on figure 1 , the excavator body 1 includes a working device 3 and a traveling device 4 , and in this embodiment, it also includes a cab 8 , a slewing device 5 , an on-board electrical appliance 19 and a voltage conversion module 18 . The working device 3 is used to excavate the excavated objects, and the ...

Embodiment 2

[0101] This embodiment provides a dual-mode electric excavator that is easy to bundle cables, which is similar to the excavator in Embodiment 1, except that the structures of the working device 3 and the traveling device 4 are different.

[0102] The working device 3 includes a bucket, a robot arm, and a displacement sensor. The mechanical arm is connected to the bucket and is used to drive the bucket to excavate the excavated material. The displacement sensor is installed on the mechanical arm and is used to detect the displacement of the bucket relative to the mechanical arm. When the displacement is lower than a preset displacement value, the working device 3 generates a non-excavation signal, otherwise an excavation signal is generated. Therefore, each signal generated by the working device 3 is converted by the signal detected by the displacement sensor, and the detection accuracy of the displacement sensor is very high, which can ensure the timeliness and accuracy of th...

Embodiment 3

[0105] This embodiment provides a dual-mode electric excavator that is convenient for bundled cables. On the basis of Embodiment 1, a power detection device is added, and the functions of the programmable controller are also increased. The power detection device is used to detect the storage capacity of the storage battery pack 16 , which can detect the storage capacity by detecting the voltage of the storage battery pack 16 or the like. Wherein, the programmable controller 14 is also used for judging whether the storage capacity is lower than a preset power; when the storage capacity is lower than the preset power, the programmable controller 14 judges whether the battery pack 16 inputs electric energy to the electric energy motor 13; When the group 16 inputs electric energy to the electric energy motor 13, the programmable controller 14 first stops the storage battery pack 16 from inputting electric energy to the electric energy motor 13, and drives the power supply cable to ...

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Abstract

The invention discloses a dual-mode electric excavator facilitating cable collection and a dual-mode driving method thereof. The electric excavator comprises an excavator body, a hydraulic system, a power output system, an energy system, a switching device and a programmable controller. The energy system comprises a work energy subsystem and a non-work energy subsystem, the work energy subsystem comprises a power supply cable, a cable collecting device and a via hole collecting ring, and the power supply cable inputs electric energy to an electric energy electric motor. The non-work energy subsystem comprises a storage battery set and a voltage transformation inverter, and a storage battery set inputs electric energy to the electric energy electric motor through the voltage transformationinverter. The switching device is used for the work energy subsystem and the non-work energy subsystem, one is selected for inputting electric energy to the electric energy electric motor, and the other one is stopped from inputting electric energy to the electric energy electric motor. The use rate, the climbing capacity, flexibility and climbing stability of energy can be improved. Use safety and bearing capacity of the power supply cable can be ensured, property is stable, and the excavator is safe and reliable.

Description

technical field [0001] The present invention relates to an excavator in the field of excavators, in particular to a dual-mode electric excavator that is convenient for bundled cables, and also relates to a dual-mode driving method for the dual-mode drive electric excavator. Background technique [0002] As an important part of the engineering equipment industry, construction machinery plays a vital role in the development and construction of the country. Excavators, which are widely used in the field of construction machinery, are one of the main models of engineering construction. Traditional excavators use diesel and gasoline as fuel, and the fuel efficiency is only about 33%, and the highest is no more than 40%, resulting in a great waste of energy; in addition, the emissions of traditional excavators cause great pollution to the air, threatening human health. The shortage of oil resources, rising prices, environmental pollution and other outstanding problems have restr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/20E02F9/22B65H75/42B65H75/44
CPCB65H75/42B65H75/44B65H75/4428B65H2701/34E02F9/20E02F9/22
Inventor 谷先广孟科委程腾尹剑尚培宇廖正京
Owner 安徽国钜工程机械科技有限公司
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