Propulsion hydraulic system of hard rock roadheader test bench

A technology of hard rock roadheader and hydraulic system, applied in mechanical equipment, fluid pressure actuating device, servo motor, etc., can solve problems such as less research, and achieve the effects of reducing cost, suppressing eccentric load, and simple structure

Active Publication Date: 2017-05-17
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few studies on the propulsion hydraulic system of the hard rock roadheader test bench that realizes uniform propulsion, suppresses eccentric load, and coordinates with direction adjustment.

Method used

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  • Propulsion hydraulic system of hard rock roadheader test bench
  • Propulsion hydraulic system of hard rock roadheader test bench
  • Propulsion hydraulic system of hard rock roadheader test bench

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The specific embodiments described here are only used to explain the present invention, and are not used to limit the protection scope of the present invention.

[0020] refer to figure 1 , set the distance between the two hinges A and B at the initial moment as X 0 , the cylinder rod displacement of the propulsion cylinder is S, in the figure: the vertical distance from the hinge A to the guide rail axis C of the main beam 8 is a, the angle between the propulsion cylinder 101 and the main beam 8 is θ, and the diameter of the rodless cavity of the propulsion cylinder 101 is D.

[0021] refer to figure 2 , illustrates the connection relationship between the propulsion cylinder 101 and the main beam 8, the cutter head 9, and the like. Among the figure: the main beam 8 is connected with the cutter head 9, and the piston rod of the propulsion cy...

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PUM

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Abstract

The invention discloses an experimental table propelling hydraulic system of a hard rock boring machine. The experimental table propelling hydraulic system comprises an oil feeding pipeline, wherein one end of the oil feeding pipeline is communicated with an oil tank; the other end of the oil feeding pipeline is sequentially connected with a filter, a constant delivery pump, a one-way valve and a stop valve; an oil outlet of the stop valve is connected with a first opening of a three-position four-way electro-hydraulic servo valve; a fourth opening of the three-position four-way electro-hydraulic servo valve is connected with inlets of first, second, third and fourth one-way proportional pressure reducing valves; each of oil outlets of the first, second, third and fourth one-way proportional pressure reducing valves is connected with a pressure sensor and a rodless cavity of a propelling cylinder; rod cavities of four propelling cylinders are connected with a third opening of the three-position four-way electro-hydraulic servo valve respectively; a displacement sensor is arranged in each of the four propelling cylinders; and a second opening of the three-position four-way electro-hydraulic servo valve is connected with the oil tank. With the adoption of the system, main beam constant-speed propelling can be realized, unbalance loading is restrained when the main beam is loaded in an unbalanced mode, and steering is matched when the main beam is steered.

Description

technical field [0001] The invention relates to a propulsion hydraulic system of a test bench, in particular to a propulsion hydraulic system of a hard rock tunneling machine test bench. Background technique [0002] Hard rock tunnel boring machine (TBM for short) is a kind of tunnel boring equipment integrating mechanical, electrical, hydraulic, information and other technologies, and plays an extremely important role in the construction of tunnels, water conservancy and other infrastructure. [0003] The hard rock tunnel boring machine is heavy equipment, the system is huge and complex, the research and development and manufacturing costs are high, and the cycle is long. The working environment of the hard rock tunnel boring machine has complex geological conditions and changing working conditions. During the research and development test, the requirements for the supporting site are also very high. Therefore, in the preliminary theoretical research and development, it is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/08
CPCF15B11/08
Inventor 肖聚亮张金望杨玉虎王国栋
Owner TIANJIN UNIV
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