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A roadway support roof subsidence early warning device

A technology of early warning device and roadway support, which is applied to mining devices, pillars/supports, mining equipment, etc., can solve the problems of optical detection requiring long-time startup detection, real-time monitoring of unfavorable roadways, and high power consumption, so as to avoid poor contact. , the effect of saving power resources and increasing support

Active Publication Date: 2021-02-19
山西华坤机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing roadway early warning devices are usually optical early warning, which changes the incidence and reflection of light through the deformation of the roadway before subsidence, and judges the subsidence of the roadway by detecting the change of the optical path. However, the optical accuracy is high, and it cannot work in the roadway for a long time. The harsh environment, and the optical detection requires a long time to start the detection, which consumes a lot of power, which is not conducive to long-term real-time monitoring of the roadway

Method used

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  • A roadway support roof subsidence early warning device
  • A roadway support roof subsidence early warning device
  • A roadway support roof subsidence early warning device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] refer to Figure 1-2 , a roadway support top subsidence early warning device, including two symmetrically arranged support columns 1, each support column 1 is equipped with a first connecting sleeve 2 and a second connecting sleeve 12, between the two first connecting sleeves 2 A reinforcement cross bar 11 is installed, a support cross bar 4 is installed between the two second connection sleeves 12, two support sleeves 3 are symmetrically installed on the support cross bar 4, and the two support sleeves 3 are fixed on the inner top wall of the roadway , the reinforcement cross bar 11 is provided with a liquid guide chamber 20, a liquid storage chamber 16 and a battery chamber 13 sequentially from left to right;

[0033] The upper end of the liquid guide cavity 20 is inserted with a liquid flow tube 18, and one end of the liquid flow tube 18 is inserted to communicate with the liquid storage cavity 16, and the lower end of the liquid guide cavity 20 is sealed and inserte...

Embodiment 2

[0046] refer to image 3 , a roadway support roof subsidence early warning device, which is basically the same as Embodiment 1, the difference is that:

[0047] Secondary protective sleeves 26 are installed on the two supporting columns 1, and a support slanting rod 27 is fixedly welded between each supporting sleeve 3 and the secondary protective sleeve 26 on the corresponding side;

[0048] When a slight subsidence occurs on the roof of the roadway so that the middle of the support cross bar 4 bends, the bent support cross bar 4 triggers the detection of the detection rod 6 through the connection seat 5, and after the detection alarm, the support cross bar 4 is affected by the subsidence of the roadway top wall. The pressure is distributed to the supporting columns 1 on both sides through the two supporting slanting rods 27, so that the device has a secondary supporting force on the roof wall of the roadway, which is convenient for the staff to explore and repair and reinfor...

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Abstract

The invention discloses a subsidence warning device for the roof of roadway support, which comprises two symmetrically arranged support columns, each of which is equipped with a first connecting sleeve and a second connecting sleeve, and the two first connecting sleeves A reinforcing cross bar and a supporting cross bar are installed jointly with the two second connecting sleeves respectively. The present invention does not conduct the circuit under normal conditions, reduces the loss of the device, saves power resources, increases the applicability of the device through the mechanical detection and transmission of the detection rod and the piston cylinder, and sets the height of the nozzle of the liquid flow pipe and the first conductive head , to increase the reliability of device detection, the support slant bar will disperse the pressure on the support bar, increase the support force of the support bar, and strengthen the bar so that the two support columns act vertically to support the bar, increasing its support force, and Provide secondary support after the crossbar is damaged, reduce the probability of direct subsidence of the roadway, reduce casualties and engineering losses.

Description

technical field [0001] The invention relates to the field of underground engineering, in particular to an early warning device for roadway support top layer subsidence. Background technique [0002] Underground engineering construction involves road construction, mining, etc. In the process of underground construction, underground tunnels need to be excavated. The stability of underground tunnels is related to the safety of all workers in the tunnels. Therefore, it is necessary to support and detect the tunnels to prevent The roadway subsides. [0003] The existing roadway early warning devices are usually optical early warning, which changes the incidence and reflection of light through the deformation of the roadway before subsidence, and judges the subsidence of the roadway by detecting the change of the optical path. However, the optical accuracy is high, and it cannot work in the roadway for a long time. The harsh environment, and the optical detection requires a long ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F17/18E21D15/55E21D15/50
CPCE21D15/50E21D15/55E21F17/185
Inventor 邢董珂胡美兰
Owner 山西华坤机械有限公司
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