Hybrid-driven mechanical mining excavator

A hybrid drive, mechanical technology, used in earthmovers/shovels, construction, etc., can solve problems such as large starting current, grid impact, and increase in volume, reducing weight and volume, extending service life, reducing The effect of installed power

Active Publication Date: 2017-12-08
TAIYUAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

In addition, according to the working characteristics of the electric shovel, the above-mentioned motors are often in low-speed and high-torque operating conditions. Due to the constraints of the current motor output torque, it is necessary to add a reducer to realize this function, which further increases the overall volume of these motors. In addition, there are problems such as large starting current and serious heating in the lifting motor, pushing motor and traveling motor of the electric shovel, especially when the bucket is lowered and the traveling device is braked, the motor is in the generator state, usually By setting the braking resistor, the kinetic energy of the electric shovel and the potential energy of the bucket are converted into heat energy and consumed, which will cause large energy consumption and cause the motor to heat up
In order to meet the short-term peak power demand, it is necessary to configure the installed power of the motor according to the maximum starting load, so that the motor works in the low-efficiency working area for a long time

Method used

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[0026] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] like Figure 1-2 As shown, the mechanical mining excavator with hybrid drive includes a lifting reducer 2, a bearing 3, a base 4, a reel 5, a pushing reducer 23, a pushing gear 24, a boom 30, a stick 31, a shovel Bucket 32, steel wire rope 33, sky wheel 34, A-frame 35, crawler-type traveling mechanism 36, also includes the first kinetic potential energy storage and transportation circuit and motor composite drive system 37, the second kinetic potential energy storage and transportation circuit and motor composite drive system 38 , The third kinetic potential energy storage and transportation circuit and the motor composite drive system 39, the supercapacitor bank 25 and the controller 26.

[0028] The first kinetic potential energy storage and transport circuit and the motor composite drive system include: the fi...

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Abstract

The invention discloses a hybrid-driven mechanical mining excavator. The hybrid-driven mechanical mining excavator comprises three kinetic potential storage and transportation circuit and motor combination drive systems, supercapacitor sets and controllers. Potential energy of a working device in the descending process and kinetic energy in travelling brake are recycled to be used for combination driving of the mechanical mining excavator. The hybrid-driven mechanical mining excavator disclosed by the invention has the advantages of being high in working efficiency, small in throttling loss, low in energy loss and the like.

Description

technical field [0001] The invention belongs to the field of large-scale equipment for open-pit mining, and in particular relates to a hybrid-driven mechanical mining excavator. Background technique [0002] Large-scale mechanical mining excavator (also known as electric shovel) is one of the essential key equipment in the intermittent mining process and semi-continuous mining process system of open-pit mines. It has large bucket capacity, wide operating range, strong environmental adaptability, It has the advantages of being able to withstand large vibration and shock loads, high working reliability and low maintenance costs. In order to meet the instantaneous high power demand of each actuator in the operation of the electric shovel, the lifting motor, pushing motor, and traveling motor of the electric shovel are all equipped with motors according to the required peak power. On the one hand, the volume of the motor is increased, and the power The difficulty of the overall...

Claims

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Application Information

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IPC IPC(8): E02F9/20
Inventor 权龙穆晓鹏权仲翊葛磊
Owner TAIYUAN UNIV OF TECH
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