CN201193964Y - Mining bracket pressure tester - Google Patents
Mining bracket pressure tester Download PDFInfo
- Publication number
- CN201193964Y CN201193964Y CNU2008200212946U CN200820021294U CN201193964Y CN 201193964 Y CN201193964 Y CN 201193964Y CN U2008200212946 U CNU2008200212946 U CN U2008200212946U CN 200820021294 U CN200820021294 U CN 200820021294U CN 201193964 Y CN201193964 Y CN 201193964Y
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- pressure tester
- bracket pressure
- mining bracket
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Abstract
The utility model discloses a mine used frame pressure tester, which comprises a shell and a circuit board. A displaying screen and an alarm window are disposed on the front side of the shell. The circuit board consists of a power unit, a signal acquisition unit, a signal amplification unit, an A/D conversion unit, a signal processing unit, a digital displaying unit, a remote transmission unit and a control circuit unit. The signal acquisition unit comprises a strain gauge sensor for signals with frequency of 200-1000 Hz which is disposed on one side of the shell; and the power unit provides power supply to other units. The tester in the utility model can detect the pressure on the coal mine roof plate on real time and transfer the message up to the ground dispatching room through the existing coal mine production safety monitoring system, assures the safety in coal mine down-hole operation, and achieves the advantages of high sensitivity, convenience and safety.
Description
Technical field:
The utility model relates to a kind of mining safety equipment, especially relates to a kind of mining bracket pressure tester.
Background technology:
In traditional three the Nature disasters that Safety of Coal Mine Production faced: gas explosion, top board roof fall, Shuitu go out, gas explosion people is the most known and is paid attention to, 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 top board roof fall does not also catch up with the Safety of Coal Mine Production requirement far away.Most of colliery also rests on the stage of manually monitoring roof pressure with the press table, postpone relevant leader greatly and understood next line data of mine, make the time of reasonable arrangement, and in the cycle of roof weighting, the people enters to observe also has certain danger.Certainly also the colliery mine pressure monitoring system has been installed in some colliery, because this system has adopted 232/485 transmission mode, can only become a system alone, has caused the repeated construction of system, invest very greatly, safeguard and to get up also to waste too much human and material resources.
Summary of the invention:
The purpose of this utility model is: avoid the defective of above-mentioned prior art, the mining bracket pressure tester that provides a kind of coal mine lower roof plate pressure to show, transmit and have the warning power down function constantly.
For achieving the above object, the technical scheme that the utility model is taked is: comprise housing and wiring board, have display screen and window annunciator in the front of housing, wiring board is by power unit, the signals collecting part, the signal amplifying part branch, the A/D conversion portion, signal processing, digital display portion, the signal is far passed part, control circuit is partly formed, signal acquisition part is divided into the strain-ga(u)ge transducer of 200-1000hz frequency signal, strain-ga(u)ge transducer is positioned at a side of housing, and power unit is respectively the signals collecting part, the signal amplifying part branch, the A/D conversion portion, signal processing, digital display portion, the signal is far passed part, control circuit partly provides power supply.
The beneficial effects of the utility model are: because the supporting signal of employing and coal mine safety monitoring system transmits, not only can detect the pressure of coal mine roof plate constantly, and be uploaded to the ground maneuvers chamber by the original safety production monitoring in colliery system, 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 bracket pressure tester;
Fig. 2 is the left view of mining bracket pressure tester shown in Figure 1;
Fig. 3 is the utility model schematic block circuit diagram.
Embodiment:
From the left view of the synoptic diagram of the utility model mining bracket pressure tester shown in Figure 1 and Fig. 2 as can be seen, the utility model is made up of housing 1 and wiring board 7, have display screen 2 and window annunciator 3 that organic glass is made in the front of housing 1, hook 4 is installed on the top of housing 1, and wiring board 7 is fixed on the housing 1 by fixed mount 8.Wiring board 7 partly is made up of power unit, signals collecting part, signal amplifying part branch, A/D conversion portion, signal processing, digital display portion, the signal is far passed part, control circuit.Signal acquisition part is divided into the strain-ga(u)ge transducer 6 of 200-1000hz frequency signal, and strain-ga(u)ge transducer 6 is installed in the bottom of housing 1, and aviation plug 5 also is equipped with in the bottom of housing 1, is used for the power unit and the external power supply of connection line plate.
From the utility model schematic block circuit diagram shown in Figure 3 as can be seen, signals collecting partly is that strain-ga(u)ge transducer is transferred to the signal amplifying part branch to the signal of gathering, after amplifying, change through A/D again, signal enters single-chip microcomputer and carries out calculation process, the result handles the back through display circuit and shows on charactron, and by the teletransmission circuit with the signal is far passed to substation at a distance, divide to stand in and pass on the computer through the master control interface, analyze by software.Power unit is respectively signals collecting part, signal amplifying part branch, A/D conversion portion, signal processing, digital display portion, the signal is far passed part, control circuit partly provides power supply.
Power circuit is made up of D1-D3, R1-R4, L1, L2, C1-C4, IC1, IC2 etc., and IC1, IC2 are the DC-DC power regulator modules, can be 34063, D1-D3 is a diode, can be 4007, R1-R4 be the 1/2W metalfilmresistor, and C1-C4 is the dielectric capacitance device.Display circuit is made up of IC3-IC6, R5-R31,4 LED, and wherein IC3-IC6 is digital display driving integrated circuit, can be 74HC64 numeral display driving integrated circuit, and LED is the charactron display circuit, and R5-R31 is the 1/2W metalfilmresistor.Signal amplifies and the A/D change-over circuit is made up of IC7-IC9, R32-R40, C5, RW1, BG1 etc., wherein, IC7, IC8 are the signal amplification circuits, it can be OP07 amplifier integrated package, IC9 is signal (A/D) change-over circuit, can be 1549 integrated packages, and R32-R40 is a 1/2W metal film electric capacity, RW1 is an adjustable potentiometer, and BG1 is a triode.The signal is far passed circuit is made up of IC10, R41, R42, R43, C6-C10, BG2, BG3, D4, LED1.Wherein, IC10 is the teletransmission control chip, can be MAX232, and R41, R42, R43 are 1/2W metal film Chip-Rs, C6-C10 is SMD dielectric capacitance device, BG2 is the positive-negative-positive triode, can be 8550, and BG3 is a NPN type triode, can be 8050, D4 is a diode, can be 4148, and LED is a red light emitting diodes.Control circuit by R44, R45, IC11, form, wherein IC11 is a photoelectrical coupler, can be 4N31,4N33 etc., R44, R45 are SMD 1/2 metal film Chip-Rs.Sound light alarming circuit is made up of BG4, BG5, BG6, DW1, C11, R46-R51, SPEAKER, wherein BG4 is the positive-negative-positive triode, can be 8550, BG5, BG6 are NPN type triodes, can be 8050, C11 is the patch electrolysis capacitor, and R46-R51 is a 1/2W metal film Chip-R, and SPEAKER is the 5-12V hummer.
When using the utility model, feed the 18V direct current, power circuit carries out pressure drop and processing with voltage, for complete machine provides power supply, sensitive element (strain-ga(u)ge transducer) is gathered signal, behind signal amplification circuit and A/D change-over circuit, entering single-chip microcomputer handles, on the LED charactron, show then, and signal is uploaded to superior unit such as substation, analyze by software by the teletransmission circuit.
The utility model can be provided with zero point, full scale, alarm set point, outage point by telepilot, when displayed value reaches alarming value or power-down value, sensor can carry out corresponding action, for the staff of down-hole provides alerting signal, for avoiding casualties that signal is provided in time, for the safety in production in colliery provides reliable foundation.
Claims (6)
1. mining bracket pressure tester, comprise housing (1) and wiring board (7), it is characterized in that: have display screen (2) and window annunciator (3) in the front of housing (1), described wiring board (7) is by power unit, the signals collecting part, the signal amplifying part branch, the A/D conversion portion, signal processing, digital display portion, the signal is far passed part, control circuit is partly formed, described signal acquisition part is divided into the strain-ga(u)ge transducer (6) of 200-1000hz frequency signal, strain-ga(u)ge transducer (6) is positioned at a side of described housing (1), and described power unit is respectively the signals collecting part, the signal amplifying part branch, the A/D conversion portion, signal processing, digital display portion, the signal is far passed part, control circuit partly provides power supply.
2. mining bracket pressure tester according to claim 1 is characterized in that: described power unit comprises the power circuit that D1-D3, R1-R4, L1, L2, C1-C4, IC1, IC2 form.
3. mining bracket pressure tester according to claim 1 is characterized in that: described signal amplifying part is divided and the A/D conversion portion comprises that the signal that IC7-IC9, R32-R40, C5, RW1, BG1 form amplifies and the A/D change-over circuit.
4. mining bracket pressure tester according to claim 1 is characterized in that: described digital display portion comprises IC3-IC6, R5-R31,4 display circuits that LED forms.
5. mining bracket pressure tester according to claim 1 is characterized in that: described the signal is far passed partly comprises the signal is far passed circuit that IC10, R41, R42, R43, C6-C10, BG2, BG3, D4, LED1 form.
6. mining bracket pressure tester according to claim 1 is characterized in that: described control circuit partly comprises the control circuit that R44, R45, IC11 form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200212946U CN201193964Y (en) | 2008-04-29 | 2008-04-29 | Mining bracket pressure tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200212946U CN201193964Y (en) | 2008-04-29 | 2008-04-29 | Mining bracket pressure tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201193964Y true CN201193964Y (en) | 2009-02-11 |
Family
ID=40393498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200212946U Expired - Fee Related CN201193964Y (en) | 2008-04-29 | 2008-04-29 | Mining bracket pressure tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201193964Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288345A (en) * | 2011-04-26 | 2011-12-21 | 南京瀚之显电子科技有限公司 | Mine fully mechanized support frame pressure monitoring device and system based on wireless sensing network |
| CN104101458A (en) * | 2014-08-06 | 2014-10-15 | 山东省四方机电设备有限公司 | Wireless pressure sensor for coal mine hydraulic support |
| CN110333013A (en) * | 2019-07-15 | 2019-10-15 | 承德石油高等专科学校 | A kind of embedded strain gauge |
-
2008
- 2008-04-29 CN CNU2008200212946U patent/CN201193964Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288345A (en) * | 2011-04-26 | 2011-12-21 | 南京瀚之显电子科技有限公司 | Mine fully mechanized support frame pressure monitoring device and system based on wireless sensing network |
| CN104101458A (en) * | 2014-08-06 | 2014-10-15 | 山东省四方机电设备有限公司 | Wireless pressure sensor for coal mine hydraulic support |
| CN110333013A (en) * | 2019-07-15 | 2019-10-15 | 承德石油高等专科学校 | A kind of embedded strain gauge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090211 Termination date: 20130429 |