Underground carry-scraper hybrid power system with energy recovery

A technology of hybrid power system and energy recovery, which is applied in earth mover/excavator, construction, etc. It can solve the problems of increasing battery and motor load and impact, limited power density and energy density, and poor ability to store energy instantly. , to achieve the effect of reducing the number of charge and discharge, improving battery life, and increasing energy density

Active Publication Date: 2021-11-26
UNIV OF SCI & TECH BEIJING
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the power density and energy density of the battery in the energy storage device are limited, and the ability of the transmission system to reversely transmit power to store energy in real time is poor, the stored energy is limited, and frequent charging and discharging increase the load and impact of th

Method used

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  • Underground carry-scraper hybrid power system with energy recovery
  • Underground carry-scraper hybrid power system with energy recovery
  • Underground carry-scraper hybrid power system with energy recovery

Examples

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Example Embodiment

[0032] An exemplary embodiment of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown, it is understood that the disclosure can be implemented in various forms without limitation. Instead, these embodiments are provided to be more thoroughly understood to disclose the present disclosure, and can communicate the scope of the scope of the present disclosure to those skilled in the art.

[0033] like Figure 1 ~ 3 Shown, the present embodiment provides a hybrid LHD with energy recovery system, the hybrid system includes an engine 1, the engine 1 through the transfer case 10 outwardly outputs power, part of the power supplied to the hydraulic working system 11, another portion of the power to drive the generator / motor 16 provides power for the working body and the driving system at this time, the generator / motor 16 in generator mode, the generator can charge...

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Abstract

The invention discloses an underground carry-scraper hybrid power system with energy recovery. An engine outputs power outwards through a transfer case, one part of the power is provided for a working system hydraulic pump, the other part of the power drives a generator/motor, the generator/motor is in a generator mode, the generator can charge a battery unit, and the generator and the battery unit can independently or simultaneously drive a front driving motor and a rear driving motor; the battery unit drives the front drive motor and the rear drive motor, the front drive motor and the rear drive motor convert kinetic energy of a vehicle into electric energy, the electric energy is transmitted into a circulating type gas-liquid energy storage unit through the generator/motor and a transfer case, energy storage is achieved, and the generator/motor is in a motor mode; the circulating type gas-liquid energy storage unit outputs power to the working system hydraulic pump and the generator/motor through the transfer case to realize energy release; and the engine, the battery unit and the gas-liquid energy storage unit can drive the front drive motor and the rear drive motor independently or at any two or at the same time. The energy density of energy storage is improved and the charging and discharging times of the battery are reduced.

Description

technical field [0001] The invention relates to the technical field of mining machinery and engineering machinery, in particular to an underground scraper hybrid power system with energy recovery. Background technique [0002] The traditional scraper power system uses a diesel engine as the power source, and provides driving force for the underground scraper through components such as a hydraulic torque converter, a gearbox, and a drive axle, and includes components of the working mechanism, steering system, and braking system. The hydraulic oil pumps are directly powered by the engine through the hydraulic torque converter. The load power fluctuates widely under the typical working conditions of the scraper. In order to meet the power demand of the scraper, the traditional power system design must meet the maximum load power. However, the high-power load condition takes a short time, and the engine is under low load for a long time. As a result, the traditional power syste...

Claims

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Application Information

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IPC IPC(8): E02F9/20E02F9/22
CPCE02F9/20E02F9/22E02F9/2083E02F9/2087E02F9/2217E02F9/2246E02F9/225E02F9/2267E02F9/2292
Inventor 高路路马飞王冬悦王士特
Owner UNIV OF SCI & TECH BEIJING
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