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Coal mine underground air door device

A damper device and damper technology, which is applied in mine/tunnel ventilation, mining equipment, earthwork drilling, etc., can solve the problems of coal mine excavation, mining and transportation obstacles, can not be opened at the same time, air flow short circuit, etc., to improve reliability and stability performance, improve coal mining efficiency, and ensure safety and reliability

Inactive Publication Date: 2018-11-13
NINGBO FEICHAI ROBOT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The damper in the coal mine requires at least two doors. Only when one damper is closed can the other be opened, that is, the two doors cannot be opened at the same time, otherwise it will cause air leakage or short circuit, which will affect the mine ventilation system.
In the prior art, in order to realize the purpose that the two air doors cannot be opened at the same time, an interactive mechanical interlock setting is usually used. When one air door is in the open state, the other air door is in the closed state. In the design of the interlock device, most of them adopt The pulley and the locking device are interlocked. In actual use, this structure mainly has the following problems: using the pulley and the locking device to interlock the two dampers interactively, the structure is complex, the reliability is poor, and the device is frequently repaired and replaced; the use of the pulley It interacts with the locking device to interlock the two air doors, and its structure is mostly set above the air door, occupying the space of the underground roadway, causing obstacles and interference to the mining and transportation of coal mines

Method used

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  • Coal mine underground air door device
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  • Coal mine underground air door device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This embodiment provides a coal mine downhole damper device, including a first damper 1 and a second damper 2 parallel to the section of the coal mine passage. Sliding up and down in the second chute 23, the first damper 1 is provided with a first sliding chamber 12 for the first slider 11 to slide up and down, and the second damper 2 is provided with a sliding chamber for the second slider 21 to slide up and down. The second sliding chamber 22; also includes a driving mechanism 3, the driving mechanism 3 includes a motor 31 located below the first damper 1 and the second damper 2 for driving the driving wheel 32 to rotate in both directions, and passes through the first sliding chamber in turn. 12 and the second sliding chamber 22 and the ring-shaped transmission steel rope 33 that is transmission-connected with the driving wheel 32, the first slider 11 and the second slider 21 are fixedly connected with the transmission steel rope 33, and the first damper 1 Directly b...

Embodiment 2

[0029] Such as Figure 1-2 As shown, this embodiment provides a coal mine damper device, including a first damper 1 and a second damper 2 parallel to the section of the coal mine passage, and the first damper 1 and the second damper 2 are respectively on the first slide above the passage. Sliding up and down in the slot 13 and the second chute 23, the first damper 1 is provided with a first sliding cavity 12 for the first slider 11 to slide up and down, and the second damper 2 is provided with a second slider 21 the second sliding chamber 22 that slides up and down; it also includes a drive mechanism 3, which includes a motor 31 located below the first damper 1 and the second damper 2 for driving the driving wheel 32 to rotate in both directions, and passes through the second damper in turn. A sliding chamber 12 and a second sliding chamber 22 are connected to the drive wheel 32 with the ring-shaped transmission steel rope 33, the first slider 11 and the second slider 21 are f...

Embodiment 3

[0031] Such as image 3As shown, this embodiment provides a coal mine damper device, including a first damper 1 and a second damper 2 parallel to the section of the coal mine passage, and the first damper 1 and the second damper 2 are respectively on the first slide above the passage. Sliding up and down in the slot 13 and the second chute 23, the first damper 1 is provided with a first sliding cavity 12 for the first slider 11 to slide up and down, and the second damper 2 is provided with a second slider 21 the second sliding chamber 22 that slides up and down; it also includes a drive mechanism 3, which includes a motor 31 located below the first damper 1 and the second damper 2 for driving the driving wheel 32 to rotate in both directions, and passes through the second damper in turn. A sliding chamber 12 and a second sliding chamber 22 are connected to the drive wheel 32 and the ring-shaped transmission chain 34, the first slider 11 and the second slider 21 are fixedly con...

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PUM

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Abstract

The invention provides a coal mine underground air door device which comprises a first air door and a second air door which are parallel to the section of a coal mine passage. The first air door and the second air door slide up and down in a first sliding groove and a second sliding groove in the upper portion of the passage correspondingly; a first sliding cavity allowing a first sliding block toslide up and down is formed in the first air door, and a second sliding cavity allowing a second sliding block to slide up and down is formed in the second air door; the coal mine underground air door device further comprises a driving mechanism, and the driving mechanism comprises a motor and an annular transmission steel rope or a transmission chain, wherein the motor is located below the firstair door and the second air door and used for driving a driving wheel to rotate bidirectionally, and the transmission steel rope or the transmission chain sequentially penetrates through the first sliding cavity and the second sliding cavity and is in transmission connection with the driving wheel; and the first sliding block and the second sliding block are fixedly connected with the transmission steel rope or the transmission chain, and idler wheels allowing the transmission steel rope or the transmission chain to be positioned are arranged under and over the first air door and the second air door correspondingly. The coal mine underground air door device is simple in structure and convenient to operate, does not occupy the internal space of a roadway and has high reliability and stability.

Description

technical field [0001] The invention relates to an air door device under a coal mine. Background technique [0002] The damper is an important equipment that can not only cut off the wind flow, but also pass vehicles and pedestrians underground in coal mines. It mainly realizes the control of the wind flow underground. The coal mine underground damper requires at least two doors. Only when one damper is closed can the other be opened, that is, the two doors cannot be opened at the same time, otherwise it will cause air leakage or short circuit, which will affect the mine ventilation system. In the prior art, in order to realize the purpose that the two air doors cannot be opened at the same time, an interactive mechanical interlock setting is usually used. When one air door is in the open state, the other air door is in the closed state. In the design of the interlock device, most of them adopt The pulley and the locking device are interlocked. In actual use, this structure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F1/10E21F1/12
CPCE21F1/10E21F1/12
Inventor 李梅
Owner NINGBO FEICHAI ROBOT TECH CO LTD