CN201210043Y - Top board displacement monitor for mining - Google Patents

Abstract

The utility model discloses a displacement monitor of a top plate used for mine, comprising a mechanical part and an electronic part. The mechanical part comprises a shell, an anchoring device, an anchorage bar and a clockwork spring, a meter ruler and a potentiometer which are arranged in the shell; the front of the shell is provided with a display screen; the anchoring device is connected with the clockwork spring by a steel wire in the anchorage bar; the clockwork spring drives the potentiometer to rotate and the meter ruler to move simultaneously; and a signal which is generated by the potentiometer is processed by the electronic part which consists of a power supply, a signal amplification part, an A/D conversion part, a signal processing part, a digital display part, a signal transmission part and a control circuit part. The displacement monitor has the functions of in-time display of the displacement state of the top plate, transmission and warning and has high sensitivity and safe and convenient use.

Description

The mining roof plate displacement monitor

Technical field:

The utility model relates to a kind of mining safety equipment, especially relates to a kind of mining roof plate displacement monitor.

Background technology:

Be faced with three the Nature disasters in traditional Safety of Coal Mine Production: gas explosion, top board roof fall, Shuitu go out, wherein gas explosion is because the huge property of its harm and the taking place frequently property of accident, people know and pay attention to the most, and the control of water has also had breakthrough must the progress along with the appearance of whole drainaging scheme and high powered water pump.But, the research of roof accident does not also catch up with the requirement of Safety of Coal Mine Production development far away, now, most of colliery also rests on the stage of detecting top board with mechanical roof delamination instrument to the monitoring of top board, adopt the displacement situation of manual record top board, postpone the line data that relevant leader understands coal mine lower roof plate situation greatly, and postponed to make the time that timely rational approach is arranged the hidden danger that exists accident to take place.

Summary of the invention:

The purpose of this utility model is: a kind of state status that can detect the displacement of coal mine lower roof plate is provided, has that the top board displacement state shows in real time, a mining roof plate displacement monitor of transmission, warning function.

For achieving the above object, the technical scheme that the utility model is taked is: comprise mechanical part and electronic section, mechanical part comprises housing, anchor, anchorage bar and the clockwork spring that is contained in enclosure interior, meter ruler, potentiometer, the front of housing has display screen, anchor connects clockwork spring by the steel wire in the anchorage bar, clockwork spring drives the potentiometer rotation simultaneously and meter ruler moves, the signal that potentiometer produces is handled by electronic section, electronic section is by power unit, the signal amplifying part branch, the A/D conversion portion, signal processing, digital display portion, the signal hop, control circuit is partly formed, and electronic section is fixed on the housing by wiring board.

The beneficial effects of the utility model are: owing to can carry out supporting use with mine intrinsic safety type substation, not only can monitor the active state of coal mine roof plate in real time, when exceeding predetermined alarming value, the top board displacement sends alerting signal, can also be uploaded to the ground maneuvers chamber by the Safety of Coal Mine Production supervisory system, system software can write down and store the data of uploading, print various forms, and provide the history curve query function, for coal mine operation provides safe production guarantee, highly sensitive, safe and convenient to use.

Description of drawings:

Fig. 1 is the synoptic diagram of the utility model mining roof plate displacement monitor;

Fig. 2 is the vertical view of mining roof plate displacement monitor shown in Figure 1;

Fig. 3 is a schematic block circuit diagram of the present utility model.

Embodiment:

From the vertical view of the synoptic diagram of the utility model mining roof plate displacement monitor shown in Figure 1 and Fig. 2 as can be seen, the utlity model has mechanical part and electronic section, mechanical part partly is made up of housing 3, two anchors 5, bobbin 1, steel wire 2, clockwork spring, meter ruler, potentiometer 8 etc., have the display screen 10 that organic glass is made in the front of housing 3, clockwork spring, meter ruler, potentiometer 8 are in the inside of housing 3.Anchorage bar 4 is connected on the housing 3, and two anchors 5 are at the other end of anchorage bar 4, by the 2 connection clockwork springs of the steel wire in the anchorage bar 4, and bobbin 1 is connected the other end of steel wire 2.Clockwork spring and outer clockwork spring were two kinds in clockwork spring was divided into, and wherein, outer clockwork spring one end is installed on the steel ruler axle 6, and the other end is fixed on the steel wire 2, and interior clockwork spring is installed in 7 li on meter ruler axle, when meter ruler stretches out in clockwork spring work the effect of circling round, be exactly the principle of common meter ruler; Steel ruler axle 6 and meter ruler axle 7 are tightly fixed together by screw, reach synchronous rotation.The inboard of steel ruler axle 7 both near electronic shell 11 sides, was the hexagon of opposite side 12mm, and a rubber ring is installed in the inside, and this circle drives potentiometer 8 by the small cymbals that rubs.During installation, use anchorage bar 4 to be pushed into the precalculated position of rock stratum anchor 5, pulling steel wire 2, make it to be fixed in the rock stratum, the mobile drive anchor 5 of rock stratum moves, the be dynamically connected clockwork spring action of anchor 5 of the moving belt of anchor 5, and the action of clockwork spring drives potentiometer 8 rotations simultaneously and meter ruler moves, the rotation of potentiometer 8 changes potentiometer resistance, and the signal that potentiometer 8 produces is handled by electronic section.Electronic section is integrated on the wiring board 9, wiring board 9 is fixed on the housing 3 by fixed mount, and electronic section partly is made up of power unit, signal amplifying part branch, A/D conversion portion, signal processing, digital display portion, signal hop, control circuit.From the utility model schematic block circuit diagram shown in Figure 3 as can be seen, the utility model can with the supporting use of mine intrinsic safety type substation, data are uploaded.Power unit is respectively signal amplifying part branch, A/D conversion portion, signal processing, digital display portion, signal hop, control circuit power supply partly is provided.The left end of housing 3 has individual aviation plug, is used for the input of power supply and spreading out of of signal.

YHW300 mine intrinsic safety type top board displacement monitor is a kind of embodiment of the present utility model, Y represent monitor, H represent essential safe type, W represent Displacement Measurement with, 300 represent that measurement range is 0～300mm.Its physical dimension: 200mm * 120mm * 400mm, display mode: three LED, monitoring mode: two points.Using method: be installed in the place that the down-hole does not have trickle, punch on top board with air drill earlier, anchorage bar with the end trough of belt is pushed into the boring upper end with the top anchor, gently draw thin steel rope confirm anchor anchor live, anchorage bar with the end trough of belt is pushed into predetermined monitoring location in the boring with the bottom anchor, usually and on the roofbolt be in sustained height, gently draw thin steel rope affirmation anchor anchoring.Monitor is fixed on the top board by anchor, the top board displacement changes the distance between anchor and the housing, the variation of distance drives meter ruler and moves, driving potentiometer simultaneously rotates, the resistance of potentiometer is changed, the signal that changes is after amplification and A/D conversion, after passing through 89C2051 single-chip microcomputer calculation process again, on charactron, show when the front top plate shift value, simultaneously, also have the meter ruler of machinery also displacement can be shown, make the staff can grasp the changing condition of down-hole roof delamination intuitively.

Claims (3)

1, a kind of mining roof plate displacement monitor, comprise mechanical part and electronic section, it is characterized in that: mechanical part comprises housing (3), anchor (5), anchorage bar (4) and be contained in the inner clockwork spring of housing (3), meter ruler, potentiometer (8), the front of housing (3) has display screen (10), anchor (5) connects clockwork spring by the steel wire (2) in the anchorage bar (4), described clockwork spring drives potentiometer (8) rotation simultaneously and meter ruler moves, the signal that potentiometer (8) produces is handled by electronic section, described electronic section is by power unit, the signal amplifying part branch, the A/D conversion portion, signal processing, digital display portion, the signal hop, control circuit is partly formed, and electronic section is fixed on the housing (3) by wiring board (9).

2, mining roof plate displacement monitor according to claim 1 is characterized in that: the anchor (5) that connects clockwork spring has two.

3, mining roof plate displacement monitor according to claim 2 is characterized in that: the other end of described steel wire (2) has bobbin (1).

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