CN201689014U - Portable base plate specific pressure testing device - Google Patents
Portable base plate specific pressure testing device Download PDFInfo
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- CN201689014U CN201689014U CN2010201839478U CN201020183947U CN201689014U CN 201689014 U CN201689014 U CN 201689014U CN 2010201839478 U CN2010201839478 U CN 2010201839478U CN 201020183947 U CN201020183947 U CN 201020183947U CN 201689014 U CN201689014 U CN 201689014U
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- forcing
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- booster pump
- base plate
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Abstract
The utility model discloses a portable base plate specific pressure testing device which is characterized by comprising a manual injection booster pump (1), a pressure gauge (2), a booster pump locating seat (3) and a compression die (4), wherein the pressure gauge (2) is arranged on the manual injection booster pump (1), the lower end of the manual injection booster pump (1) is arranged in a groove on the booster pump locating seat (3), an installing trough (9) matched with the compression die (4) in specification is arranged below the booster pump locating seat (3) and sheathed on the compression die (4); and the manual injection booster pump (1), the booster pump locating seat (3), the installing trough (9) and the compression die (4) are arranged on the same axis. The portable base plate specific pressure testing device can conveniently draw a pressure-drilling base quantity characteristic curve of seam floors according to compression depth of the compression die and the value of the pressure gauge, and has the advantages of simple structure, convenient carrying, portable operation, accurate measurement and the like.
Description
Technical field
The utility model relates to a kind of portable floor pressure ratio Air holder proving installation, is particularly suited for carrying out the floor pressure ratio Air holder test at the narrow coal mine fully-mechanized mining working of the test space, fully mechanized coal face.
Background technology
The floor pressure ratio Air holder parameter is design of coal mine work area supporting parameter and the important evidence of choosing.According to the roof timbering theory, the supporting construction of workplace and the roof and floor in coal seam constitute a temporary building body, and wherein the destruction of any one link all can be jeopardized whole building body, and its stress balance is destroyed.Especially it should be noted that under certain space-time condition, the front end of bracket base is absorbed in base plate easily at some workplace of the soft end, cause the rigidity of stope support system significantly to reduce, the amount of crushing increases, direct top absciss layer, causes roof accident.
In recent years, along with the further increasing of China's coal-mine mining depth, stope top board dynamic pressure increases gradually, and the incident that support is absorbed in base plate often takes place the workplace in " three is soft " coal seam.Therefore, strengthen the floor pressure ratio Air holder test job, follow the tracks of the analysis and utilization of floor pressure ratio Air holder parameter, take all factors into consideration the supporting intensity that top board, base plate characteristics are rationally determined workplace, seem particularly urgent.
The floor pressure ratio Air holder test is seat earth to be carried out resistance to compression go into characteristic test, by data analysis, calculates the floor pressure ratio Air holder parameter.Existing floor pressure ratio Air holder testing tool need cooperate hydraulic prop just can carry out floor pressure ratio Air holder test, need constantly move individual prop between each measuring point of workplace in the test process, causes that the work personnel are intensive, labour intensity is big; On the other hand, combine that the plant equipment volume adopt (putting) workplace is big, the test space is narrow, has also influenced the ordinary production of workplace.In addition, in some mining areas of China, combine and to adopt (putting) workplace and adopt special advance timbering to carry out the tunnel to safeguard that in advance workplace lacks individual prop, this brings very big inconvenience for the floor pressure ratio Air holder test job.Based on this, be badly in need of a kind of portable floor pressure ratio Air holder proving installation of development.
Summary of the invention
The utility model aim to provide a kind of simple in structure, be easy to carry, simple operation, measure floor pressure ratio Air holder proving installation accurately.
The technical solution of the utility model is: comprise manual fluid injection force (forcing) pump, tensimeter, force (forcing) pump positioning seat and pressing mold, setting pressure table on manual fluid injection force (forcing) pump, the lower end of this manual fluid injection force (forcing) pump is inserted in the groove above the force (forcing) pump positioning seat, be provided with mounting groove below the force (forcing) pump positioning seat, mounting groove is enclosed within the top of pressing mold; Described manual fluid injection force (forcing) pump, force (forcing) pump positioning seat, mounting groove and pressing mold are installed on the same axis.On described pressing mold, be provided with the scale that is used to measure compression distance.
The utility model is pressed into the degree of depth of base plate according to manometric numerical value and pressing mold, can draw out " pressure---bore end amount " family curve of seat earth fast, has advantages such as simple in structure, simple operation, measurement be accurate.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Synoptic diagram when Fig. 2 uses for the utility model.
Embodiment
Referring to Fig. 1, the utility model comprises manual fluid injection force (forcing) pump 1, tensimeter 2, force (forcing) pump positioning seat 3 and pressing mold 4, on the described manual fluid injection force (forcing) pump 1 tensimeter 2 is housed, the lower end of described manual fluid injection force (forcing) pump 1 is inserted in the groove above the force (forcing) pump positioning seat 3, be provided with the mounting groove 9 that the specification with pressing mold 4 is complementary (force (forcing) pump positioning seat 3 be structure as a whole with mounting groove 9 or by bolted minute body structure) below force (forcing) pump positioning seat 3, this mounting groove 9 is enclosed within the top of pressing mold 4.Described manual fluid injection press pump 1, positioning seat 3 and pressing mold 4 are on same axis.Be marked with scale 8 at described pressing mold 4, be used to measure the degree of depth that pressing mold 4 is pressed into base plate 7.Pressing mold 4 belongs to prior art, is generally cylindrical.
Referring to Fig. 2, during on-the-spot test, the utility model is installed between the cable trough 5 and tested base plate 7 of workplace scraper conveyer 6: start manual fluid injection force (forcing) pump 1, make its upper end hold out against cable bearer 5, manually the lower end of fluid injection force (forcing) pump 1 passes to pressing mold 4 by force (forcing) pump positioning seat 3 with pressure, carries out applied voltage test by 4 pairs of base plates of pressing mold 7.In the test process, select the specification of pressing mold 4, show pressure fuel pump by tensimeter according to the soft or hard degree of base plate 7.Numerical value by tensimeter 2 shows can calculate the pressure that base plate 7 bears.In whole test process, should guarantee that the axis of manual fluid injection press pump 1, positioning seat 3 and pressing mold 4 is vertical with base plate 7.
Concrete operation method is as follows:
A. must check before using whether each parts is normal.During as the low on fuel of manual fluid injection force (forcing) pump 1, need earlier in pump adding work oil to work.
B. before the test, select the pressing mold 4 of appropriate size, and float coal on the base plate and unconsolidated formation are peeled off leveling, make pressing mold 4 acting surfaces smooth smooth according to the lithological characteristic of tested base plate.With positioning seat 3 and pressing mold 4 vertical being installed on the measuring point, manually the upper end of fluid injection force (forcing) pump 1 is a fulcrum with scraper conveyor cable trough 5, the lower end passes to pressing mold 4 by force (forcing) pump positioning seat 3 with the pressure of manual fluid injection force (forcing) pump 1, carries out applied voltage test by 4 pairs of seat earths of pressing mold 7.
C. in the test process, the pressure reading of real time record tensimeter 2 reaches the compression distance (being read by the scale on the pressing mold 4 8) of the pressing mold 4 corresponding with it, especially will note surveying the force value of correspondence when reading to reach maximum permission compression distance, finishes the test of first specific pressure.
D. after this continue to boost, the compression distance (compression distance has exceeded the maximum compression distance that allows) that continuous recording tensimeter 2 readings and pressing mold 4 are corresponding no longer changes or changes less until pressure, even occur descending, and at this moment the base plate pressurized reaches surrender.The compression distance of pressing mold 4 and base plate 7 specific pressure values are corresponding to the catastrophe point of coal seam floor failure at this moment, and this specific pressure value is called base plate limit press-in strength.This process is called the test of second specific pressure.Its data can be used for further grasping the rock mass physical parameter of base plate, as base plate rigidity, limit specific pressure etc.
Claims (1)
1. portable floor pressure ratio Air holder proving installation, it is characterized in that: comprise manual fluid injection force (forcing) pump (1), tensimeter (2), force (forcing) pump positioning seat (3) and pressing mold (4), go up setting pressure table (2) at manual fluid injection force (forcing) pump (1), the lower end of this manual fluid injection force (forcing) pump (1) is inserted in the top groove of force (forcing) pump positioning seat (3), be provided with mounting groove (9) below force (forcing) pump positioning seat (3), mounting groove (9) is enclosed within the top of pressing mold (4); Described manual fluid injection force (forcing) pump (1), force (forcing) pump positioning seat (3), mounting groove (9) and pressing mold (4) are installed on the same axis; On described pressing mold (4), be provided with the scale (8) that is used to measure compression distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201839478U CN201689014U (en) | 2010-05-10 | 2010-05-10 | Portable base plate specific pressure testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201839478U CN201689014U (en) | 2010-05-10 | 2010-05-10 | Portable base plate specific pressure testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201689014U true CN201689014U (en) | 2010-12-29 |
Family
ID=43377294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201839478U Expired - Fee Related CN201689014U (en) | 2010-05-10 | 2010-05-10 | Portable base plate specific pressure testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201689014U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018108A (en) * | 2012-12-14 | 2013-04-03 | 山东科技大学 | Device for testing bearing capacity of base plate |
| CN106706237A (en) * | 2016-11-18 | 2017-05-24 | 安徽理工大学 | Method for guaranteeing bearing safety of stope supporting system in condition of soft and weak bottom plate |
| CN107037132A (en) * | 2016-11-18 | 2017-08-11 | 安徽理工大学 | A kind of advanced section stability automatic measurement car in tunnel and its application method |
-
2010
- 2010-05-10 CN CN2010201839478U patent/CN201689014U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018108A (en) * | 2012-12-14 | 2013-04-03 | 山东科技大学 | Device for testing bearing capacity of base plate |
| CN106706237A (en) * | 2016-11-18 | 2017-05-24 | 安徽理工大学 | Method for guaranteeing bearing safety of stope supporting system in condition of soft and weak bottom plate |
| CN107037132A (en) * | 2016-11-18 | 2017-08-11 | 安徽理工大学 | A kind of advanced section stability automatic measurement car in tunnel and its application method |
| 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 |
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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: 20101229 Termination date: 20130510 |