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Electric excavator

A technology for electric excavators and traveling motors, which is applied to earth movers/shovels, construction, etc. It can solve problems such as low work efficiency, restriction of construction machinery, and large noise, and achieve the goal of saving hydraulic oil energy and hydraulic energy. Effect

Pending Publication Date: 2018-05-01
FUJIAN XINYUAN HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some inherent technical problems of the engine, such as low working efficiency, more than 50% energy waste, and large noise generated during fuel combustion, gradually restrict the development of construction machinery. In order to solve these problems, electric motors are currently used for hydraulic main pumps. Drive, as a new power system, but, compared with the traditional engine, the new power method must redesign the control method and electrical system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 , Image 6 , Figure 7 As shown, an electric excavator of the present invention includes a cab, a slewing platform 1 and an undercarriage 2 , and the cab is located at the upper front side of the slewing platform 1 . The cab is provided with a central control module 3 .

[0025] The slewing platform 2 is provided with a slewing mechanism 4 , a steering mechanism 5 , a battery pack 6 , a power mechanism 7 , a hydraulic main pump 8 and an electronic steering pump 9 .

[0026] The slewing mechanism 4 is driven by a hydraulic main pump 8 to work.

[0027] Battery pack 6 comprises high-voltage battery pack 61 and low-voltage battery pack 62, and low-voltage battery pack 62 is positioned at the side of high-voltage battery pack 61; DC / DC module 63 is arranged between high-voltage battery pack 61 and low-voltage battery pack 62, makes low-voltage battery pack The power supply of 62 can be obtained by inverter of high-voltage battery pack 61; The battery p...

Embodiment 2

[0033] Such as figure 2 , Image 6 As shown, an electric excavator of the present invention includes a cab, a slewing platform 1 and an undercarriage 2 , and the cab is located at the upper front side of the slewing platform 1 . The cab is provided with a central control module 3 .

[0034] The slewing platform 2 is provided with a slewing mechanism 4 , a steering mechanism 5 , a battery pack 6 , a power mechanism 7 , a hydraulic main pump 8 and an electronic steering pump 9 .

[0035] The slewing mechanism 4 is driven by a hydraulic main pump 8 to work.

[0036] Battery pack 6 comprises high-voltage battery pack 61 and low-voltage battery pack 62, and low-voltage battery pack 62 is positioned at the side of high-voltage battery pack 61; DC / DC module 63 is arranged between high-voltage battery pack 61 and low-voltage battery pack 62, makes low-voltage battery pack The power supply of 62 can be obtained by inverter of high-voltage battery pack 61; The battery pack 6 is ele...

Embodiment 3

[0042] Such as image 3 , Image 6 , Figure 8 As shown, an electric excavator of the present invention includes a cab, a slewing platform 1 and an undercarriage 2 , and the cab is located at the upper front side of the slewing platform 1 . The cab is provided with a central control module 3 .

[0043] The slewing platform 2 is provided with a slewing mechanism 4 , a steering mechanism 5 , a battery pack 6 , a power mechanism 7 , a hydraulic main pump 8 and an electronic steering pump 9 .

[0044] The slewing mechanism 4 is driven by a hydraulic main pump 8 to work.

[0045] Battery pack 6 comprises high-voltage battery pack 61 and low-voltage battery pack 62, and low-voltage battery pack 62 is positioned at the side of high-voltage battery pack 61; DC / DC module 63 is arranged between high-voltage battery pack 61 and low-voltage battery pack 62, makes low-voltage battery pack The power supply of 62 can be obtained by inverter of high-voltage battery pack 61; The battery pac...

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Abstract

The invention relates to the technical field of excavators, in particular to an electric excavator. The electric excavator comprises a power mechanism, a swing mechanism, a steering mechanism, a traveling mechanism, a battery pack, and a central control module. The power mechanism is controlled by electrical power to effectively save hydraulic oil energy. The swing mechanism, the steering mechanism, and the traveling mechanism are correspondingly provided with hydraulic control modes and electric control modules to meet different operating environments and operating requirements. The hydraulicenergy can be reasonably saved without affecting the operation of the excavators.

Description

technical field [0001] The invention relates to the technical field of excavators, in particular to an electric excavator. Background technique [0002] Most of the traditional hydraulic excavators use the hydraulic control system fueled by diesel and gasoline to control the whole machine to realize all the actions of the excavator. The mature engine technology brings high reliability to the whole machine, and the easy access to diesel oil also provides convenience for the excavator to operate in remote areas. With the deterioration of the global environment and the shortage of resources and other issues becoming increasingly prominent, energy conservation and emission reduction have become the research focus of major excavator manufacturers. Some inherent technical problems of the engine, such as low working efficiency, more than 50% energy waste, and large noise generated during fuel combustion, gradually restrict the development of construction machinery. In order to sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/00E02F9/20E02F9/22
CPCE02F9/00E02F9/207E02F9/225
Inventor 郑永忠
Owner FUJIAN XINYUAN HEAVY IND
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