CN204855266U - Improve coal road stock and draw test effectiveness device with telescopic base - Google Patents
Improve coal road stock and draw test effectiveness device with telescopic base Download PDFInfo
- Publication number
- CN204855266U CN204855266U CN201520599141.XU CN201520599141U CN204855266U CN 204855266 U CN204855266 U CN 204855266U CN 201520599141 U CN201520599141 U CN 201520599141U CN 204855266 U CN204855266 U CN 204855266U
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- telescopic
- pedestal
- base
- anchor pole
- hollow cylinder
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Abstract
The utility model relates to an improve coal road stock and draw test effectiveness device with telescopic base, test technology is simplified to effective the solution, improve the effective stroke of hydro -cylinder and piston, a problem that anchor data and test effectiveness that is reliable is provided, the method is, telescopic base is arranged in between layer board and the hydraulic jack, stock one end stretches into inside the bonding with the country rock in coal seam and is in the same place, the stock exposes the one end cover mounting plate in coal seam, adorn nut pretightening soon, the stock exposes the installation of subtotal extension bar together, telescopic base suit is on the stock exposes end and extension bar, and install on the layer board, inside activity pedestal revolves the dress externally to be fixed in the pedestal one end, the hydraulic jack suit is on the extension bar, be located the outside of telescopic base, it is equipped with high pressure fuel pipe on the pneumatic cylinder to draw the meter, the extension bar passes telescopic base, hydraulic jack's the pneumatic cylinder and the center of piston, the utility model discloses novel structure is unique, easily installs and use, and is effectual, guarantees coal mine safety production.
Description
Technical field
The utility model relates to mine safety test, particularly a kind of raising coal road bolting pull-out test effects device with telescopic base.
Background technology
Bolt supporting is a kind of active support technology of current colliery tunnel support popularity, and coal entry anchor rod support generally adopts perfect thread steel high strength resin bolt.Together with anchor pole one end employing resin explosive roll is anchored at country rock, anchor pole exposed junction nut screwing clamping, anchor pole produces pretightning force and produces support action to country rock.
In order to grasp anchor pole under resin explosive roll effect with the anchor force of country rock, ensure supporting effect of roadway, need to carry out anchor rod anchored Force meansurement, the anchor force test usually adopted adopts down-hole anchor pole pull-out test to complete.
The equipment that anchor rod drawing test adopts is anchor rod drawing meter, and this equipment is primarily of formations such as open-core type lifting jack, tensimeter, high-pressure oil pipe, travel range metering installation, pressure oil pumps.Concrete test procedure first anchor pole exposed junction pre-load nut is unloaded, and connects extension rod and anchor pole, install the hollow jack of drawing meter, tighten outer end nut with long nut, to lifting jack pressurization, carries out anchor rod drawing test.
At the scene in test, after the outer end nut of anchor pole unloads, coal body can occur to loosen and resilience, the stroke of drawing meter oil cylinder and piston is less in addition, so when testing, first coal body will return to original impaction state, then just effective drawing experimentation can be carried out, such meeting reduces the stroke of piston and oil cylinder further, there will be drawing meter pulling capacity less time, the stroke of piston has reached capacity position, accurately can not test the anchor force of anchor pole, thus accurately can not judge the supporting effect of coal road bolting, the dangerous accident of easy generation, affect Safety of Coal Mine Production.
Summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the object of the utility model is just to provide a kind of raising coal road bolting pull-out test effects device with telescopic base, effectively can solve pull-out test not need to unload anchor pole pre-load nut, simplify test technology, improve the effective travel of oil cylinder and piston, reliable anchoring data and test effect are provided, ensure the problem of Safety of Coal Mine Production.
The technical scheme that the utility model solves is, comprise anchor pole, supporting plate, pre-load nut, long nut, extension rod, anchor rod drawing meter hydraulic jack, telescopic base, nut, telescopic base is telescopic hollow cylinder base, be placed between supporting plate and hydraulic jack, anchor pole one end is stretched into inside, coal seam and is bonded together with country rock, anchor pole exposes one end cover mounting plate in coal seam, pre-load nut in spinning, the remaining exposed parts of anchor pole is installed together by the extension rod of long nut and concentric, telescopic hollow cylinder base sheath is contained in the one-piece construction of anchor pole exposed junction and extension rod formation, and be arranged on supporting plate, telescopic hollow cylinder base is made up of external stability pedestal and internal activity pedestal, internal activity pedestal spinning is in the outside fixed base frame other end, the hydraulic jack of drawing meter is sleeved on extension rod, and be positioned at the outside of telescopic hollow cylinder base, anchor rod drawing meter hydraulic jack is made up of hydraulic cylinder and the piston be contained in hydraulic cylinder, drawing meter hydraulic cylinder is equipped with high-pressure oil pipe, extension rod is through telescopic hollow cylinder base, the hydraulic cylinder of hydraulic jack and the center of piston, hold-down nut is equipped with in the outer end that extension rod stretches out drawing meter hydraulic cylinder, form coal road bolting drawing meter test structure.
The utility model novel structure is unique, easily installs and uses, effective, the pre-load nut of anchor pole and anchor pole synchronous shift, simplifies test procedure, effectively utilizes the effective travel of piston, improves the reliability of test result, ensures Safety of Coal Mine Production.
Accompanying drawing explanation
Fig. 1 is pedestal front view of the present utility model.
Fig. 2 is pedestal sectional front view of the present utility model.
Fig. 3 is sectional front view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
Shown in Fig. 1-3, the utility model comprises anchor pole, supporting plate, pre-load nut, long nut, extension rod, anchor rod drawing meter hydraulic jack, telescopic base, nut, telescopic base is telescopic hollow cylinder base, be placed between supporting plate and hydraulic jack, anchor pole 3 one end is stretched into inside, coal seam and is bonded together with country rock, anchor pole exposes one end cover mounting plate 4 in coal seam, pre-load nut 6 in spinning, the remaining exposed parts of anchor pole is installed together by the extension rod 8 of long nut 7 and concentric, telescopic hollow cylinder base sheath is contained in the one-piece construction of anchor pole exposed junction and extension rod formation, and be arranged on supporting plate 4, telescopic hollow cylinder base is made up of external stability pedestal 1 and internal activity pedestal 2, internal activity pedestal 2 spinning is in outside fixed base frame 1 one end, the hydraulic jack of drawing meter is sleeved on extension rod 8, and be positioned at the outside of telescopic hollow cylinder base, anchor rod drawing meter hydraulic jack is made up of hydraulic cylinder 10 and the piston 9 be contained in hydraulic cylinder, drawing meter hydraulic cylinder is equipped with high-pressure oil pipe 12, extension rod 8 is through telescopic hollow cylinder base, the hydraulic cylinder 10 of hydraulic jack and the center of piston 9, hold-down nut 11 is equipped with in the outer end that extension rod stretches out drawing meter hydraulic cylinder, form coal road bolting drawing meter test structure.
In order to ensure result of use, described external stability pedestal 1, internal activity pedestal 2 are the hollow cylinder that steel are made, the outside surface of internal activity pedestal 2 has external thread, the inside surface of external stability pedestal 1 has internal thread, internal activity pedestal 2 is contained on the internal thread of external stability pedestal 1 through external thread rotary, forms the telescopic adjustment structure of pedestal; The thickness of described external stability pedestal 1, internal activity pedestal 2 hollow cylinder is 10mm, the internal diameter 70mm of external stability pedestal 1, and the internal diameter of internal activity pedestal 2 is 50mm.
Described anchor pole 3, supporting plate 4, pre-load nut 6 form bolt supporting structure, the end that anchor pole 3 exposes the anchor pole exposed junction 5 in coal seam 13 is installed together by long nut 7 and extension rod 8, put telescopic hollow cylinder base, extension rod 8 is successively through the center of telescopic hollow cylinder base, jack piston 9 and hydraulic cylinder 10, stretch out hydraulic cylinder 10 outer end, the outer end of stretching out hydraulic cylinder there is external thread, is fixed on hydraulic jack by hold-down nut 11.
When the utility model uses, (1), first according to a conventional method coal entry anchor rod support is installed; (2), stretch out at coal road bolting coal seam end to install same axle center extension rod through long nut; (3), at long nut and anchor pole, the exterior telescopic hollow cylinder base of extension rod, and extension rod is made to stretch out telescopic hollow cylinder base; (4), will the extension rod stretching out telescopic hollow cylinder base install the hydraulic jack of upper drawing meter, and make extension rod stretch out meter lifting jack, the exposed junction mounting nuts of extension rod, links together drawing meter hydraulic jack, telescopic hollow cylinder base; (5), the drawing meter oil cylinder of drawing meter lifting jack is connect dispensing pump through high-pressure oil pipe, and connect tensimeter, clock gauge, dispensing pump routinely, according to the length of the scalable hollow cylinder base of length adjustment of anchor pole end protruded length and extension rod, the piston of lifting jack is made to be in initial position, then the nut of extension rod outer end is tightened, support the use with anchor rod drawing meter, start the pressurization of drawing meter lifting jack, thus realize anchor rod drawing Force meansurement.
As can be seen from said structure, extension type hollow cylinder base of the present utility model is that two hollow cylinders are installed together by screw thread, and length can be stretched.Concrete structure is outside firm banking and inner mobile base two parts composition, be plow-steel structure, thickness 10mm, mobile base internal diameter 50mm, the concrete size of firm banking internal diameter 70mm(can according to on-the-spot anchor stalk and drawing meter size design), guarantee that hollow cylinder chassis interior effective diameter is greater than anchor rod prestress nut diameter 10mm.The screw thread of firm banking inside surface and the screw thread of mobile base outside match, and ensure that mobile base can be arranged on firm banking, and energy relative movement when threadingly rotating, base entire length is stretched.This floor installation is in the middle of Supporting plate for anchor and drawing meter, and during pull-out test, anchor pole moves together with pre-load nut, can simplify test technology, improves the effective travel of piston, ensures that test effect is accurate, improves the reliability of test, be beneficial to Safety of Coal Mine Production.
The utility model is through reality test and test, the sufficient proof test duration is short, speed is fast, and the nut due to anchor pole end does not need to unload, and anchor pole and nut move integrally, coal seam can not dilatational strain, can improve drawing meter more than piston effective travel 50mm, the test duration only needs 10 minutes, and testing efficiency improves more than 50%, effective saving testing cost, economic and social benefit is huge.
Claims (4)
1. one kind has the raising coal road bolting pull-out test effects device of telescopic base, comprise anchor pole, supporting plate, pre-load nut, long nut, extension rod, anchor rod drawing meter hydraulic jack, telescopic base, nut, it is characterized in that, telescopic base is telescopic hollow cylinder base, be placed between supporting plate and hydraulic jack, anchor pole (3) one end is stretched into inside, coal seam and is bonded together with country rock, anchor pole exposes one end cover mounting plate (4) in coal seam, pre-load nut (6) in spinning, the remaining exposed parts of anchor pole is installed together by the extension rod (8) of long nut (7) and concentric, telescopic hollow cylinder base sheath is contained in the one-piece construction of anchor pole exposed junction and extension rod formation, and be arranged on supporting plate (4), telescopic hollow cylinder base is made up of external stability pedestal (1) and internal activity pedestal (2), internal activity pedestal (2) spinning is in outside fixed base frame (1) one end, the hydraulic jack of drawing meter is sleeved on extension rod (8), and be positioned at the outside of telescopic hollow cylinder base, anchor rod drawing meter hydraulic jack is made up of hydraulic cylinder (10) and the piston (9) be contained in hydraulic cylinder, high-pressure oil pipe (12) drawing meter hydraulic cylinder is equipped with, extension rod (8) is through telescopic hollow cylinder base, the hydraulic cylinder (10) of hydraulic jack and the center of piston (9), hold-down nut (11) is equipped with in the outer end that extension rod stretches out drawing meter hydraulic cylinder, form coal road bolting drawing meter test structure.
2. the raising coal road bolting pull-out test effects device with telescopic base according to claim 1, it is characterized in that, described external stability pedestal (1), internal activity pedestal (2) are the hollow cylinder that steel are made, the outside surface of internal activity pedestal (2) has external thread, the inside surface of external stability pedestal (1) has internal thread, internal activity pedestal (2) is contained in through external thread rotary on the internal thread of external stability pedestal (1), forms the telescopic adjustment structure of pedestal.
3. the raising coal road bolting pull-out test effects device with telescopic base according to claim 1, it is characterized in that, described external stability pedestal (1), the thickness of internal activity pedestal (2) hollow cylinder are 10mm, the internal diameter 70mm of external stability pedestal (1), the internal diameter of internal activity pedestal (2) is 50mm.
4. the raising coal road bolting pull-out test effects device with telescopic base according to claim 1, it is characterized in that, described anchor pole (3), supporting plate (4), pre-load nut (6) forms bolt supporting structure, the end that anchor pole (3) exposes the anchor pole exposed junction (5) in coal seam (13) is installed together by long nut (7) and extension rod (8), put telescopic hollow cylinder base, extension rod (8) is successively through telescopic hollow cylinder base, the center of jack piston (9) and hydraulic cylinder (10), stretch out hydraulic cylinder (10) outer end, the outer end of stretching out hydraulic cylinder there is external thread, be fixed on hydraulic jack by hold-down nut (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520599141.XU CN204855266U (en) | 2015-08-10 | 2015-08-10 | Improve coal road stock and draw test effectiveness device with telescopic base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520599141.XU CN204855266U (en) | 2015-08-10 | 2015-08-10 | Improve coal road stock and draw test effectiveness device with telescopic base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204855266U true CN204855266U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520599141.XU Expired - Fee Related CN204855266U (en) | 2015-08-10 | 2015-08-10 | Improve coal road stock and draw test effectiveness device with telescopic base |
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| CN (1) | CN204855266U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004615A (en) * | 2015-08-10 | 2015-10-28 | 河南理工大学 | Device with telescopic base for improving drawing testing effect of coal road anchor rod |
| CN106124321A (en) * | 2016-08-21 | 2016-11-16 | 安徽理工大学 | A kind of detachable anchor rod anchored attribute testing platform |
| CN109696352A (en) * | 2019-01-26 | 2019-04-30 | 李少祯 | L shape anchor rod drawing test clamping device for highway engineering |
| CN111322101A (en) * | 2020-04-29 | 2020-06-23 | 湖南科技大学 | Auxiliary device for applying pre-tightening force of anchor rod and construction method |
-
2015
- 2015-08-10 CN CN201520599141.XU patent/CN204855266U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004615A (en) * | 2015-08-10 | 2015-10-28 | 河南理工大学 | Device with telescopic base for improving drawing testing effect of coal road anchor rod |
| CN106124321A (en) * | 2016-08-21 | 2016-11-16 | 安徽理工大学 | A kind of detachable anchor rod anchored attribute testing platform |
| CN106124321B (en) * | 2016-08-21 | 2018-09-14 | 安徽理工大学 | A kind of detachable anchor rod anchored features Testbed |
| CN109696352A (en) * | 2019-01-26 | 2019-04-30 | 李少祯 | L shape anchor rod drawing test clamping device for highway engineering |
| CN111322101A (en) * | 2020-04-29 | 2020-06-23 | 湖南科技大学 | Auxiliary device for applying pre-tightening force of anchor rod and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20190810 |
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| CF01 | Termination of patent right due to non-payment of annual fee |