CN103018108B - Device for testing bearing capacity of base plate - Google Patents
Device for testing bearing capacity of base plate Download PDFInfo
- Publication number
- CN103018108B CN103018108B CN201210540818.3A CN201210540818A CN103018108B CN 103018108 B CN103018108 B CN 103018108B CN 201210540818 A CN201210540818 A CN 201210540818A CN 103018108 B CN103018108 B CN 103018108B
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- digital display
- external interface
- chronization
- hydraulic prop
- centimeter
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Abstract
The invention discloses a device for testing bearing capacity of a base plate. The device comprises a flow adjusting control device, a liquid injection pipeline, a liquid injection connecting device, a digital display pressure gauge, an external interface of the digital display pressure gauge, a connecting circuit of the digital display pressure gauge, a data synchronous receiver, a digital display centimeter, a digital display centimeter fixing device, a digital display centimeter connecting circuit, a locating seat, a molding die, a cushion block, a single hydraulic prop, a three-function valve, an articulated roof beam, and a pumping hydraulic pipeline, wherein the single hydraulic prop stands on the locating seat; the molding die is arranged below the locating seat; a movable rod of the single hydraulic prop resists against the articulated roof beam; the pumping hydraulic pipeline, the flow adjusting control device, the liquid injection pipeline, the liquid injection connecting device and the single hydraulic prop are sequentially connected; and the digital display pressure gauge is arranged on the liquid injection connecting device. The device for testing the bearing capacity of the base plate can rapidly, effectively and accurately obtain a relation curve of the load density and the pressing depth of the base plate, is simple and effective, and convenient to analyze.
Description
Technical field
Patent of the present invention relates to a kind of mine floor load-carrying properties proving installation, is particularly useful for the larger workplace of spatial altitude and gate road backplane testing.
Background technology
The load-bearing capacity of base plate is one of important reference of workplace and crossheading forepoling parameter designing.In digging space, form a support system effectively by top board, pillar, base plate, the destruction of any part all can cause the inefficacy of support system, does not reach the supporting effect of expection, easily causes the generation of roof accident.Particularly under the situation at the soft end, under certain space-time condition, pillar easily pierces base plate, and the rigidity of coal face support system is significantly reduced, and pillar work resistance drop is low, and the whole temporary support system unstability of face, easily causes the generation of roof fall accident.
Along with the raising of mining mechanization degree, coal face mining height obviously increases, and improves constantly face timbering quality requirements, and this grasps the load-carrying properties of seat earth with regard to an urgent demand.But due to the continuous increase of mining height, this brings difficulty just to the test of base plate load-carrying properties.When utilizing floor pressure ratio Air holder instrument to measure, hydraulic prop needs test professional to buttress, and easily occurs because post causes the generation of accidental injury personnel accident.Utilize hydraulic pump fluid injection, liquid charge pump is little, need reservoir quantity large, the fluid injection time is long, and to liquid feeding trouble in liquid charge pump, in test process, adopt the method measuring post stroke of living to obtain pressing mold press-in bottom plate depth, manual measurement reading record, measure trouble, and record data are less, there is artificial reading error, affect the accuracy of measurement result.Routine measurement needs to carry out artificial treatment after obtaining data, can not obtain base plate load-carrying properties curve in time.Therefore, design one effectively can control testing progress, accurately measures, and the proving installation that record storage also shows test results in time automatically has great importance.
Summary of the invention
The object of the present invention is to provide a kind of base plate load-carrying properties proving installation, this proving installation novel structure, measuring accuracy is high.
To achieve these goals, the technical solution of employing is in the present invention:
Base plate load-carrying properties proving installation, comprises flow regulation control device, fluid injection pipeline, fluid injection coupling arrangement, digital display manometer, digital display manometer external interface, digital display manometer connection line, data syn-chronization receiving trap, digital display centimeter, digital display centimeter stationary installation, digital display centimeter connection line, positioning seat, pressing mold, cushion block, hydraulic prop, triple-use valve, articulated roof beam and pumping plant fluid pressure line; Described hydraulic prop is erected on positioning seat, it is pressing mold below positioning seat, the motion bar of hydraulic prop heads on articulated roof beam, described pumping plant fluid pressure line, flow regulation control device, fluid injection pipeline, fluid injection coupling arrangement, hydraulic prop connect successively, and digital display manometer is arranged on fluid injection coupling arrangement; Described digital display manometer external interface, digital display manometer connection line, data syn-chronization receiving trap, digital display centimeter connection line, digital display centimeter connect successively; Described digital display centimeter is fixed by digital display centimeter stationary installation, and the pointer of digital display centimeter contacts with cushion block; Described triple-use valve is arranged on hydraulic prop.
Preferably, described data syn-chronization receiving trap, comprises single-chip microcomputer, tensimeter external interface, dial gauge external interface, data syn-chronization zeroing switches, starts to record switch, power switch, LED display, power supply, explosion-resistant enclosure, external interface; Described single-chip microcomputer is connected with tensimeter external interface, dial gauge external interface, data syn-chronization zeroing switches, power supply and external interface respectively, start to record switch to be connected with data syn-chronization zeroing switches, power switch respectively, power switch is connected with LED display, power supply respectively.
Preferably, described flow regulation control device is connected and composed by flowmeter and variable valve.
Beneficial effect of the present invention:
This kind of base plate load-carrying properties proving installation, digital display centimeter is used to measure pressing mold press-in bottom plate depth, avoid the trouble brought by measurement hydraulic prop motion bar overhang and calculating, particularly when mining height is larger, hydraulic prop motion bar overhang is measured more difficult, adopt data syn-chronization receiving trap, pressure gauge reading and pressing mold compression distance synchronous collection can be realized and store, data volume increases, and data accuracy is high, and directly can obtain base plate load-carrying properties curve, avoid the error that artificial reading brings.Meanwhile, data syn-chronization receiving trap accepts and after storing data, directly can be connected with computing machine, data directly be imported in computing machine, can obtain floor load intensity and compression distance relation curve effectively accurately fast, simply effectively, be convenient to analyze.
Accompanying drawing explanation
Fig. 1 is the using state figure of base plate load-carrying properties proving installation.
Fig. 2 is the structural representation of data syn-chronization receiving trap.
Fig. 3 is the structural representation of flow regulation control device.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail:
Composition graphs 1 to Fig. 3, base plate load-carrying properties proving installation, comprises flow regulation control device 1, fluid injection pipeline 2, fluid injection coupling arrangement 3, digital display manometer 4, digital display manometer external interface 5, digital display manometer connection line 6, data syn-chronization receiving trap 7, digital display centimeter 8, digital display centimeter stationary installation 9, digital display centimeter connection line 10, positioning seat 11, pressing mold 12, cushion block 13, hydraulic prop 14, triple-use valve 15, articulated roof beam 16 and pumping plant fluid pressure line 17.Described hydraulic prop 14 is erected on positioning seat 11, it is pressing mold 12 below positioning seat 11, the motion bar of hydraulic prop 14 heads on articulated roof beam 16, described pumping plant fluid pressure line 17, flow regulation control device 1, fluid injection pipeline 2, fluid injection coupling arrangement 3, hydraulic prop 14 connect successively, and digital display manometer 4 is arranged on fluid injection coupling arrangement 3.Described digital display manometer external interface 5, digital display manometer connection line 6, data syn-chronization receiving trap 7, digital display centimeter connection line 10, digital display centimeter 8 connect successively.Described digital display centimeter 8 is fixed by digital display centimeter stationary installation 9, and the pointer of digital display centimeter 8 contacts with cushion block 13, and described triple-use valve 15 is arranged on hydraulic prop 14.
Described data syn-chronization receiving trap 7, comprises single-chip microcomputer 26, tensimeter external interface 18, dial gauge external interface 19, data syn-chronization zeroing switches 20, starts to record switch 21, power switch 22, LED display 23, power supply 24, explosion-resistant enclosure 25, external interface 27.Described single-chip microcomputer 26 is connected with tensimeter external interface 18, dial gauge external interface 19, data syn-chronization zeroing switches 20, power supply 24 and external interface 27 respectively, start to record switch 21 to be connected with data syn-chronization zeroing switches 20, power switch 22 respectively, power switch 22 is connected with LED display 23, power supply 24 respectively.Described flow regulation control device 1 is connected and composed by flowmeter 28 and variable valve 29.
On the ground, flow regulation control device 1 is connected with fluid injection coupling arrangement 3 by fluid injection pipeline 2, digital display manometer 4 utilizes digital display manometer connection line 6 to be connected with the tensimeter external interface 18 of data syn-chronization receiving trap 7 by digital display manometer external interface 5, digital display centimeter 8 is connected with the dial gauge external interface 19 of data syn-chronization receiving device 7 by digital display centimeter connection line 10, positioning seat 11 is connected with pressing mold 12, tests the cooperation situation of each several part and checks assurance device each several part normally to work.
When downhole testing, first suitable base plate position is selected, flat-soffit, removes float coal foreign material etc., according to above-mentioned connection request, each several part is connected, volume control device 1 is connected with pumping plant fluid pressure line 17 simultaneously, hydraulic prop 14 is put into the positioning seat 11 connected, and hold up post by special messenger, fluid injection coupling arrangement 3 is connected with hydraulic prop 14, and digital display centimeter stationary installation 9 is fixed on positioning seat 11.Place cushion block 13 at base plate correct position place and make digital display centimeter 8 pointer and cushion block 13 close contact, and leave enough measurement spaces, whether reliably connect each connecting link of rear inspection.
After inspection, articulated roof beam 16 being placed on hydraulic prop 14 top, adopting flow regulation control device 1 to carry out slow setting prop, until ensure hydraulic prop 14 from falling with top plate contact, closing flow regulation control device 1.Now, open data syn-chronization receiving trap 7 power switch 22, utilize data syn-chronization zeroing switches 20 to make data syn-chronization and digital display centimeter is returned to zero, press and start to record switch 21, start to receive and record data, utilize flow regulation control device 1 to regulate fluid injection speed simultaneously, guarantee effectively to carry out data monitoring.Simultaneously, note observing top board, pillar and base plate situation of change, fluid injection speed is regulated according to different situations, until LED display 23 show curve there is significant change after and till in pillar, pressure reaches pump station pressure, stop fluid injection, record now measurement data reference number of a document, be convenient to the corresponding of aboveground Monitoring Data and measuring point, complete the surveying work of a measuring point.
The data syn-chronization record of data syn-chronization receiving trap 7 and data store, mainly realized by the single-chip microcomputer 26 of program curing, writing time, interval was 30ms by program setting, namely every 30ms records a force value and base plate compression distance, and automatically generate force value-compression distance curve, shown by LED display 23, once recorded rear automatically ordinal numeration and stored.
After completing according to above-mentioned steps measurement, aboveground, data syn-chronization receiving device 7 accepted data and is connected with computing machine, export data, Treatment Analysis data can obtain base plate load-carrying properties.
Claims (1)
1. base plate load-carrying properties proving installation, it is characterized in that, comprise flow regulation control device, fluid injection pipeline, fluid injection coupling arrangement, digital display manometer, digital display manometer external interface, digital display manometer connection line, data syn-chronization receiving trap, digital display centimeter, digital display centimeter stationary installation, digital display centimeter connection line, positioning seat, pressing mold, cushion block, hydraulic prop, triple-use valve, articulated roof beam and pumping plant fluid pressure line; Described hydraulic prop is erected on positioning seat, it is pressing mold below positioning seat, the motion bar of hydraulic prop heads on articulated roof beam, described pumping plant fluid pressure line, flow regulation control device, fluid injection pipeline, fluid injection coupling arrangement, hydraulic prop connect successively, and digital display manometer is arranged on fluid injection coupling arrangement; Described digital display manometer external interface, digital display manometer connection line, data syn-chronization receiving trap, digital display centimeter connection line, digital display centimeter connect successively; Described digital display centimeter is fixed by digital display centimeter stationary installation, and the pointer of digital display centimeter contacts with cushion block; Described triple-use valve is arranged on hydraulic prop;
Described data syn-chronization receiving trap, comprises single-chip microcomputer, tensimeter external interface, dial gauge external interface, data syn-chronization zeroing switches, starts to record switch, power switch, LED display, power supply, explosion-resistant enclosure, external interface; Described single-chip microcomputer is connected with tensimeter external interface, dial gauge external interface, data syn-chronization zeroing switches, power supply and external interface respectively, start to record switch to be connected with data syn-chronization zeroing switches, power switch respectively, power switch is connected with LED display, power supply respectively;
Described flow regulation control device is connected and composed by flowmeter and variable valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210540818.3A CN103018108B (en) | 2012-12-14 | 2012-12-14 | Device for testing bearing capacity of base plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210540818.3A CN103018108B (en) | 2012-12-14 | 2012-12-14 | Device for testing bearing capacity of base plate |
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| Publication Number | Publication Date |
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| CN103018108A CN103018108A (en) | 2013-04-03 |
| CN103018108B true CN103018108B (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210540818.3A Expired - Fee Related CN103018108B (en) | 2012-12-14 | 2012-12-14 | Device for testing bearing capacity of base plate |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237019B (en) * | 2014-09-03 | 2016-04-13 | 黑龙江科技大学 | Coal mine dynamic disaster Multi-parameter coupling determinator |
| CN107037132B (en) * | 2016-11-18 | 2019-11-15 | 安徽理工大学 | A kind of advanced section stability automatic measurement vehicle in tunnel and its application method |
| CN106769497B (en) * | 2016-11-18 | 2020-05-22 | 安徽理工大学 | Full-automatic specific pressure measuring vehicle for circulating liquid injection and using method thereof |
| CN106768015B (en) * | 2016-11-18 | 2019-02-05 | 安徽理工大学 | A kind of Roof And Floor Stability self-operated measuring unit application method |
| CN106769123B (en) * | 2016-11-18 | 2019-03-22 | 安徽理工大学 | A kind of Drift stability measurement evaluation vehicle and its application method |
| CN109812284A (en) * | 2019-03-26 | 2019-05-28 | 贵州大学 | A kind of hydraulic prop structure of the both ends with positioning device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87206932U (en) * | 1987-04-27 | 1988-07-13 | 山西矿业学院 | Stand-alone hydraulic pressure testing installation for supporting struts |
| CN2082855U (en) * | 1990-09-18 | 1991-08-14 | 沈阳重型机器厂 | Data acquisition type tonnage monitoring apparatus of mechanical press |
| CN2171856Y (en) * | 1993-07-13 | 1994-07-13 | 山东矿业学院 | Pressure boost valve controlled base intrusion instrument |
| DE10013980A1 (en) * | 2000-03-21 | 2001-09-27 | Hatz Motoren | Method for separation of e.g. connecting rod of a reciprocating piston engine uses two-part mandrel to fix bearing eye and wedge to drive mandrel parts apart |
| CN101520388B (en) * | 2009-04-02 | 2011-02-16 | 哈尔滨工业大学 | Device for testing bulge performance of tubular products |
| CN101539563B (en) * | 2009-04-29 | 2012-07-25 | 长安大学 | High-pressure permeability consolidometer |
| CN201689014U (en) * | 2010-05-10 | 2010-12-29 | 天地科技股份有限公司 | Portable base plate specific pressure testing device |
| CN202008422U (en) * | 2011-01-30 | 2011-10-12 | 哈尔滨隆威煤矿安全高新技术开发有限公司 | Negative pressure sensor used for mining |
| CN102507328B (en) * | 2011-11-11 | 2016-10-12 | 谢柳辉 | A kind of Portable escalator skirt board rigidity detection device |
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