CN209586311U - A kind of standard coring device for fractured coal and rock sample - Google Patents
A kind of standard coring device for fractured coal and rock sample Download PDFInfo
- Publication number
- CN209586311U CN209586311U CN201920251013.4U CN201920251013U CN209586311U CN 209586311 U CN209586311 U CN 209586311U CN 201920251013 U CN201920251013 U CN 201920251013U CN 209586311 U CN209586311 U CN 209586311U
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- China
- Prior art keywords
- coring
- sleeve
- control
- rod
- bit
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Abstract
The utility model discloses a kind of standard coring device for fractured coal and rock sample, including coring drill rod, coring sleeve, coring bit and coring enclosed mechanism；The front end of the coring drill rod is connect with the rear end of coring sleeve；The coring sleeve is hollow cylinder barrel structure, and the front end of coring sleeve is connect with coring bit, and the coring bit is hollow boring bit；The coring enclosed mechanism is located in coring sleeve, can block to the coring bit centre bore after coring.The utility model structure is simple, easy to operate, and by design coring enclosed mechanism, after drilling through coal sample, pushes semicircular ring cutting baffle to be sealed by control-rod release spring bar, can guarantee that loose coal sample is completely taken out in coring sleeve.
Description
Technical field
The utility model belongs to boring and coring technical field, in particular to a kind of standard for fractured coal and rock sample takes
Core apparatus.
Background technique
Currently, underground engineering faced it is most of be fragmented rock body, especially in underground mining engineering, with opening
The complication of condition is adopted, more and more loose crushing coal and rocks tunnel generates large deformation, and stability is very poor.In order to deeper into ground
The mechanical characteristic of this fractured coal and rock is studied, to provide basic data to roadway support, needs to obtain some rock mass samples
Carry out mechanical test.In general, it mainly takes out respective sample by boring and coring to be processed again, still, from existing coring
From the point of view of technology, core drilling rig more at present is primarily adapted for use in the more perfect rock mass of various hard rocks or lithology, and for broken
The sampling of broken coal body or rock mass etc., it is very difficult for especially keeping coal and rock physico mechanical characteristic in situ.
Therefore, in order to solve the problems such as fractured coal and rock sampling is difficult and distortion level is big, sample itself situation is not being destroyed
In the case where fully take out fractured coal and rock, form standard specimen, directly for used in Rock Mechanics Test, this patent offer one
The special standard coring device and construction method for obtaining fractured coal and rock test specimen of kind.
Utility model content
In order to solve the above-mentioned technical problem, it is simple to provide a kind of structure for the utility model, easy to operate, can ensure that coal sample is existing
The integrality of situation, moreover it is possible to ensure the core taken out do not leak out, do not squeeze, the non-destructive mark for fractured coal and rock sample
Quasi- coring device.
The technical solution adopted in the utility model is: a kind of standard coring device for fractured coal and rock sample, including
Coring drill rod, coring sleeve, coring bit and coring enclosed mechanism；The front end of the coring drill rod and the rear end of coring sleeve connect
It connects；The coring sleeve is hollow cylinder barrel structure, and the front end of coring sleeve is connect with coring bit, and the coring bit is sky
Heart drill bit；The coring enclosed mechanism is located in coring sleeve, can block to the coring bit centre bore after coring.
In the above-mentioned standard coring device for fractured coal and rock sample, the coring enclosed mechanism, including two
Control-rod, two spring assist devices and two semicircular ring cutting baffles；Two spring assist devices are symmetricly set on coring
In sleeve lateral wall, it is located at coring sleeve bottom；Spring assist device includes pin shaft and the spring that is sleeved on pin shaft, the outer end of pin shaft
It is spirally connected with coring sleeve lateral wall；It is set in the coring sleeve lateral wall there are two rod aperture is controlled, two control rod aperture are respectively with two
The pin shaft hole of a spring assist device is connected to, and control rod aperture is arranged along coring sleeve axis；Control-rod is inserted into control rod aperture, control
Bar processed is equipped with card slot towards one end of pin shaft, and card slot is stuck on pin shaft, and the inner end of spring is contacted with control-rod；Described two and half
Annulus cutting baffle is placed on coring bit upper surface, and spring can push two semicircular ring cutting baffles to block coring bit
Centre bore.
In the above-mentioned standard coring device for fractured coal and rock sample, interior spiral shell is equipped at the control rod aperture rear end
Line, the control rod rear end are equipped with flange, and hollow spiro cap is on control-rod, after hollow nut is spirally connected with control rod aperture, energy
The flange for enough blocking control rod rear end prevents control-rod from exiting in drilling.
In the above-mentioned standard coring device for fractured coal and rock sample, a semicircular ring cutting baffle opposite end
Equipped with jagged cutting edge.
Compared with prior art, the utility model has the beneficial effects that
It, can be with 1. the standard coring device structure for fractured coal and rock sample of the utility model is simple, easy to operate
The various types of coring bits of meaning collocation, drill through conveniently.
2. the standard coring device for fractured coal and rock sample of utility model can effectively utilize coring enclosed mechanism
Realize the closure to coal sample bottom, enclosed mechanism uses opposite opened semicircular ring cutting baffle, and can be with ring cutting coal using cutting shape
Sample first blocks and cuts again, does not need to realize that the intact form of coal sample retains by too many external force.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the standard coring device for fractured coal and rock sample of the utility model.
Fig. 2 is the structural schematic diagram of the coring enclosed mechanism of the utility model.
Fig. 3 is the sectional view of the coring enclosed mechanism of the utility model.
Fig. 4 is the standard coring device construction schematic diagram for fractured coal and rock sample of the utility model.
Fig. 5 is the structure chart at the control rod rear end of the coring enclosed mechanism of the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figs 1-4, the standard coring device for fractured coal and rock sample of the utility model, including coring drill rod
1.1, coring sleeve 2, coring bit 4.1 and coring enclosed mechanism；Behind the front end of the coring drill rod 1.1 and coring sleeve 2
End is threadedly coupled.The coring sleeve 2 is hollow cylinder barrel structure, and the front end of coring sleeve 2 is connect with coring bit 4.1, institute
Stating coring bit 4.1 is hollow boring bit.
The coring enclosed mechanism includes two control-rods, 3.1, two spring assist devices 3.2 and two semicircular ring cuttings
Baffle 3.3.Two spring assist devices 3.2 are symmetricly set on the side wall of coring sleeve 2, are located at 2 bottom of coring sleeve.
Spring assist device 3.2 is spirally connected including pin shaft and the spring being sleeved on pin shaft, outer end and the coring sleeve lateral wall of pin shaft.Described
Set that there are two control rod aperture 2.1, two control rod aperture 2.1 pin with two spring assist devices respectively on the side wall of coring sleeve 2
Axis hole connection, control rod aperture 2.1 are arranged along the axis of coring sleeve 2.Control-rod 3.1 is inserted into control rod aperture 2.1, control-rod
3.1 are equipped with card slot towards one end of pin shaft, and card slot is stuck on pin shaft, and the inner end of spring is contacted with control-rod 3.1, control-rod 3.1
So that spring is in compressive state.Two semicircular ring cutting baffles 3.3 are placed on 4.1 upper surface of coring bit, spring
Two semicircular ring cutting baffles 3.3 can be pushed to block the centre bore of coring bit 4.1.A semicircular ring cutting baffle
3.3 opposite ends are equipped with jagged cutting edge, for cutting away extra core.
As shown in figure 5, being equipped with internal screw thread at 2.1 rear end of control rod aperture, 3.1 rear end of control-rod is equipped with convex
Edge 3.5,3.4 sets of hollow nut after hollow nut 3.4 is spirally connected with control rod aperture 2.1, can push down control on control-rod 3.1
The flange 3.5 of 3.1 rear end of bar prevents control-rod 3.1 from exiting in drilling.
The construction method of the utility model, comprising the following steps:
1) selection of coring drill rod 1.1, coring bit 4.1, coring sleeve 2:
First according to the geologic feature and field condition of different coal mines, the coring bit 4.1 and coring of reasonable benefit/risk are chosen
Then drilling rod 1.1 needs to select coring sleeve 2 according to coring volume.
2) assembling of coring enclosed mechanism 3:
After the good coring sleeve 2 of reselection, coring sealer 3 is started setting up, whole device is arranged in 2 bottom of coring sleeve,
Firstly the need of placement of two cylindrical hollow cylinders for control-rod 3.1 is drilled out in coring sleeve 2, then control-rod 3.1 is inserted
It is in coring sleeve and good with bottom pin shaft card to enter, so that the spring on pin shaft is in compressive state, allows semicircular ring cutting after last
Baffle 3.3 is successively close to spring assist device.
3) coring device drilling operation:
The front and back end of coring sleeve 2 is respectively equipped with screw thread card slot, and rear portion card slot 1.2 connects coring drill rod 1.1, front card slot
4.2 connection coring bits 4.1, after coring sleeve 2 has been respectively screw coring drill rod 1.1 and coring bit 4.1, by coring bit
4.1, which are steadily directed at the position to be drilled through unlatching motor, at the uniform velocity creeps into, so that coal sample is cut into inside coring sleeve 2 with drill bit,
When the face of drilling fastly close to coring drill rod 1.1 when, stop motor, be ready for coal sample taking-up.
4) core takes out:
After stopping motor, the control-rod 3.1 in coring sleeve 2 is extracted out, the release of spring lever 3.2 is made to push semicircular ring cutting gear
Piece 3.3 inwards and closes, and then proceedes to open motor and bores at a slow speed dynamic, and synchronizes back and lift entire coring device, during lifting back by
In the operation of motor, semicircular ring cutting baffle 3.3, which plays a role, cuts away extra coal sample, until two semicircular ring cutting tooth baffle 3.3
It coincide, finally closes motor, remove coring drill rod 1.1, pour out the coal sample blocked out of coring sleeve 2 with collection device.
Claims (4)
1. a kind of standard coring device for fractured coal and rock sample, it is characterized in that: including coring drill rod, coring sleeve, taking
Core drill bit and coring enclosed mechanism；The front end of the coring drill rod is connect with the rear end of coring sleeve；The coring sleeve is sky
The front end of heart cylindrical structure, coring sleeve is connect with coring bit, and the coring bit is hollow boring bit；The coring sealing
Mechanism is located in coring sleeve, can block to the coring bit centre bore after coring.
2. the standard coring device according to claim 1 for fractured coal and rock sample, it is characterized in that: the coring
Enclosed mechanism, including two control-rods, two spring assist devices and two semicircular ring cutting baffles；Two spring assists
Device is symmetricly set in coring sleeve lateral wall, is located at coring sleeve bottom；Spring assist device includes pin shaft and is sleeved on pin shaft
Spring, outer end and the coring sleeve lateral wall of pin shaft be spirally connected；Control rod aperture there are two being set in the coring sleeve lateral wall, two
Control rod aperture is connected to the pin shaft hole of two spring assist devices respectively, and control rod aperture is arranged along coring sleeve axis；Control-rod is inserted
In control rod aperture, control-rod is equipped with card slot towards one end of pin shaft, and card slot is stuck on pin shaft, the inner end of spring and control-rod
Contact；Two semicircular ring cutting baffles are placed on coring bit upper surface, and spring can push two semicircular ring cuttings
Baffle blocks the centre bore of coring bit.
3. the standard coring device according to claim 2 for fractured coal and rock sample, it is characterized in that: the control
At rod aperture rear end be equipped with internal screw thread, the control rod rear end be equipped with flange, hollow spiro cap on control-rod, hollow nut with
After control rod aperture is spirally connected, the flange of control rod rear end can be blocked, prevents control-rod from exiting in drilling.
4. the standard coring device according to claim 2 for fractured coal and rock sample, it is characterized in that: described a half
Annulus cutting baffle opposite end is equipped with jagged cutting edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920251013.4U CN209586311U (en) | 2019-02-28 | 2019-02-28 | A kind of standard coring device for fractured coal and rock sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920251013.4U CN209586311U (en) | 2019-02-28 | 2019-02-28 | A kind of standard coring device for fractured coal and rock sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209586311U true CN209586311U (en) | 2019-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920251013.4U Expired - Fee Related CN209586311U (en) | 2019-02-28 | 2019-02-28 | A kind of standard coring device for fractured coal and rock sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209586311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667557A (en) * | 2019-02-28 | 2019-04-23 | 湖南科技大学 | A kind of standard coring device and construction method for fractured coal and rock sample |
-
2019
- 2019-02-28 CN CN201920251013.4U patent/CN209586311U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667557A (en) * | 2019-02-28 | 2019-04-23 | 湖南科技大学 | A kind of standard coring device and construction method for fractured coal and rock sample |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191105 |