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A follow-up method and hydraulic system of a dust-removing air duct for a tunnel boring machine

A technology of tunnel boring machine and hydraulic system, which is applied in mine/tunnel ventilation, dust prevention, mechanical equipment, etc., and can solve problems such as endangering the physical and mental health of workers and excessive dust concentration

Active Publication Date: 2018-08-24
CHINA UNIV OF MINING & TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the construction of large-scale tunnels, ventilation and dust removal are extremely important. Poor ventilation will cause the dust concentration to exceed the standard, which will seriously endanger the physical and mental health of the workers; in the construction of large-section tunnel cantilever roadheaders, the dust removal air cylinder is often far away from the roadheader. When the cutting operation point changes, it is often necessary to move the dust removal air cylinder accordingly

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  • A follow-up method and hydraulic system of a dust-removing air duct for a tunnel boring machine
  • A follow-up method and hydraulic system of a dust-removing air duct for a tunnel boring machine

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] as attached figure 1 As shown, a tunnel boring machine dust removal air cylinder follow-up method specifically includes the following steps

[0021] 1) The cantilever mechanism and the follow-up mechanism enter the tunnel to be excavated; under the action of the hydraulic synchronization system, the cantilever mechanism and the follow-up mechanism move synchronously;

[0022] 2) When the excavation operation starts, the hydraulic system realizes that the follow-up mechanism is disengaged from the synchronization system, so that the follow-up mechanism moves independently to the position of the dust removal air cylinder, lifts the dust removal air cylinder, and then returns to the position when the synchronization system is disengaged, so that the cantilever mechanism It forms a synchronous system with the follow-up mechanism again; during the working process of...

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Abstract

The invention discloses a dust removal air duct follow-up method of a tunneling machine. The method comprises the following steps: enabling a cantilever mechanism and a follow-up mechanism to form a synchronous system by virtue of a hydraulic system, separating the follow-up mechanism from the synchronous system by virtue of the hydraulic system, and enabling the follow-up mechanism to reform the synchronous system by virtue of the hydraulic system. In the hydraulic system, a rotation circuit not only realizes the synchronous movement of a cantilever rotation oil cylinder and a follow-up rotation oil cylinder, but also realizes the independent rotation movement of the follow-up rotation oil cylinder; a lifting circuit not only realizes the synchronous movement of a cantilever lifting oil cylinder and a follow-up lifting oil cylinder, but also realizes the independent lifting movement of the follow-up lifting oil cylinder; and a telescopic circuit realizes the telescopic movement of the follow-up mechanism in the separation movement.

Description

technical field [0001] The invention relates to the field of tunnel machinery, in particular to a method for following a dust removal air cylinder of a tunnel boring machine and a hydraulic system. Background technique [0002] In the construction of large-scale tunnels, ventilation and dust removal are extremely important. Poor ventilation will cause the dust concentration to exceed the standard, which will seriously endanger the physical and mental health of the workers; in the construction of large-section tunnel cantilever roadheaders, the dust removal air cylinder is often far away from the roadheader. When the cutting operation point changes, it is often necessary to move the dust removal air cylinder accordingly. Contents of the invention [0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a follow-up method and a hydraulic system for the dust removal air cylinder of a tunnel boring machine. . ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F1/00E21F1/04E21F5/00F15B11/16F15B13/02
CPCE21F1/006E21F1/04E21F5/00F15B11/16F15B13/024
Inventor 赵继云曹超丁海港陈世其苗运江张晓春
Owner CHINA UNIV OF MINING & TECH