Electro-hydraulic hybrid power drive system of tunneling machine and control method

A technology of hybrid power and drive system, which is applied in the direction of fluid pressure actuated system components, earthwork drilling, mechanical equipment, etc., and can solve problems affecting the normal working life of motors

Inactive Publication Date: 2016-04-13
TAIYUAN UNIV OF TECH
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  • Application Information

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Problems solved by technology

[0003] Since the roadheader works in a complex and harsh working environment, obstacles such as rocks in the working environment will increase the workload of the cutter head of the roadheader instantly. The traditi...

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  • Electro-hydraulic hybrid power drive system of tunneling machine and control method

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Embodiment Construction

[0021] Attached below figure 1 Specific embodiments of the present invention are described in further detail:

[0022] An electromechanical-hydraulic hybrid drive system and control method for roadheading, the main motor 18 is connected to the reducer 21 through the first coupling 20, the reducer 21 is connected to the cutting arm 22, and the cutting arm 22 transmits power to the The cutting head 23; the other shaft end of the main motor 18 is connected with the hydraulic pump / motor 15 through the second coupling 16, and the oil inlet and outlet of the hydraulic pump / motor 15 (P A and P B ) is connected to the working ports A and B of the hydraulic reversing circuit. The oil charge motor 3 is connected to the oil charge pump 7 through the third coupling 4, and the oil outlet of the oil charge pump 7 passes through the second check valve 8, and then passes through the pipeline and the oil inlet P of the hydraulic reversing circuit 14, the energy storage The oil inlet of the ...

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Abstract

The invention provides an electro-hydraulic hybrid power drive system of a tunneling machine and a control method and belongs to the field of tunneling machinery. The system comprises a main motor, the main motor is connected with a cutting head through a speed reducer and a cutting arm and is connected with a hydraulic pump/motor, an oil supplement motor is connected with an oil supplement pump, and the oil supplement pump is communicated with an energy accumulator, an overflow valve and a pressure sensor; an oil tank passes a first one-way valve and then is connected with an oil inlet of the oil supplement pump and an oil inlet of a two-position two-way electromagnetic reversing valve through pipelines, the two-position two-way electromagnetic reversing valve is communicated with the energy accumulator, the overflow valve and the pressure sensor, and an oil outlet of the overflow valve is communicated with the oil tank; the pressure sensor detects pressure of the energy accumulator and transmits an output signal to a controller; a rotation speed sensor detects the rotation speed of the main motor and transmits a rotation speed signal to the controller and a frequency changer. The tunneling machine can overcome a peak load smoothly during working if the tunneling machine runs across a barrier in the tunneling process, and the reliability of the tunneling machine is improved.

Description

technical field [0001] The invention relates to the field of excavation machinery, in particular a hybrid drive system composed of motor frequency conversion technology combined with a hydraulic pump / motor to overcome the peak load during the excavation process. Background technique [0002] The roadheader is mainly used for roadway excavation in mines and underground engineering. Because the roadheader has the advantages of fast driving speed, good roadway formation and stability, good support, small amount of work, low labor intensity, and production safety, etc., the roadheader is becoming more and more popular. The more it is used in construction projects such as urban road traffic, railways, highways, water conservancy, and municipal engineering. [0003] Since the roadheader works in a complex and harsh working environment, obstacles such as rocks in the working environment will increase the workload of the cutter head of the roadheader instantly. The traditional metho...

Claims

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Application Information

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IPC IPC(8): F15B1/02F15B21/08E21D9/10
CPCF15B1/024E21D9/1006F15B21/08
Inventor 权龙梁涛黄家海熊晓燕
Owner TAIYUAN UNIV OF TECH
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