CN106338422A - Weakly-consolidated rock test piece machining technology - Google Patents
Weakly-consolidated rock test piece machining technology Download PDFInfo
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- CN106338422A CN106338422A CN201611027665.7A CN201611027665A CN106338422A CN 106338422 A CN106338422 A CN 106338422A CN 201611027665 A CN201611027665 A CN 201611027665A CN 106338422 A CN106338422 A CN 106338422A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/32—Polishing; Etching
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Abstract
Provided is a weakly-consolidated rock test piece machining technology. The technology comprises the following steps that 1, drilling is conducted on the field to take a cylindrical rock core; 2, one or two chip grooves are formed in the circumferential surface of the rock core in the generatrix direction; 3, the rock core is placed in a fixture, and it is guaranteed that the center line of the rock core coincides with the center line of a drilling tube; 4, a radial drill and an air blower are started, and the rock core is machined to be a long-column-type test sample of which the outer diameter is 51 mm; 5, a PVC pipe and the long-column-type test sample are placed on a cutting machine to be cut; 6, the circumferential surface of the test sample which is 100 mm long and/or the circumferential surface of the test sample which is 50 mm long are ground. According to the weakly-consolidated rock test piece machining technology, drilling machining is conducted on the field drilling rock core test sample through a drilling system, one or two chip grooves are formed in the circumferential surface of the rock core in the generatrix direction in advance, drilling jamming caused by chip agglomeration in the weakly-consolidated rock standard test sample machining process is effectively avoided, the unsmooth drilling phenomenon is avoided, and the completeness of the test piece can be guaranteed by adopting an air cooling mode.
Description
Technical field
The invention belongs to weak cemented rock research experiment technical field, the weak cemented rock test specimen of more particularly, to a kind of rock adds
Work technique.
Background technology
Weak cementing be west area rock stratum typical case's cementing status, rock stratum internal crack, hole extremely develop, degree of consolidation ratio
Poor, cohesive strength ratio is relatively low, leads to mechanical properties of rock poor, strength ratio is relatively low, and the ability ratio bearing load is relatively low, or even
After running into water, rock surface starts to rupture, and rock has the trend of gradually disintegrate.But it is as the transfer of national energy strategy, increase
Dynamics is developed to energy resources in west China, will more extensively touch weak cemented rock in practice, but be directed to weak cementing
The physico-mechanical properties research of rock much can not meet the needs of actual production, therefore, the weak cement rock in west area to be analyzed
The physico-mechanical properties of stone, sets up a set of relatively complete mechanical system being directed to weak cemented rock, thus preferably referring to
Lead the production of reality.And the research to engineering rock mass is often first to start from a series of related experiment of laboratory, but due to
Between weak cemented rock granule, bonding degree ratio is relatively low, and rock is broken, is difficult to by the processing method of conventional rock sample
Machine-shaping.
At present, test the indoor test specimen processing technique to rock material mostly to add water in the engineering drilling through, but weak glue
Knot rock in the presence of by water, easily meet water and soften disintegrate, processes not molding by rock particles.If adopting existing processing
Technique can not make complete rock sample it is impossible to meet the needs of experiment, therefore in the urgent need to changing to existing processing technique
Enter so that the test specimen satisfaction being processed into does, in experiment interior, the dimensional requirement tested.
Content of the invention
The present invention in order to solve weak point of the prior art, provide a kind of easy and simple to handle, easy to process, can ensure that examination
The rock weak cemented rock test specimen processing technique of part complete sexual satisfaction requirement of experiment.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that rock weak cemented rock test specimen processing technique,
Described processing technique adopt a kind of drilling system, this drilling system include radial drill, fixture, sealing and connecting device, guide duct,
Wind gathering cover, volume damper and aerator；Fixture is arranged on the platen of radial drill, and aerator is located at radial drill side, rocking arm
The drilling rod boring is hollow-core construction, and drilling rod lower end is coaxial to be connected with drilling pipe, is provided with the sealing above drilling pipe and connects outside drilling rod
Connection device, is provided with the baffle plate above drilling pipe in drilling rod, the air outlet of aerator is passed through wind gathering cover and connected with one end of guide duct
Connect, the other end of guide duct is connected with sealing and connecting device, the air outlet of sealing and connecting device is connected with drilling rod inwall；Drilling pipe
Internal diameter is 51mm, and volume damper is located on guide duct；
Sealing and connecting device includes the coaxial sleeve pipe being set on drilling rod, passes through at least two between internal surface of sleeve pipe and drilling-rod external wall
Individual thrust bearing rotates and connects, and its lower end is provided with lower ring plate, is provided with lower wear-resistant seal between lower ring plate inner ring and drilling-rod external wall
Circle, is provided with the upper ring plate below a thrust bearing of foot, sets between upper ring plate inner ring and drilling-rod external wall in sleeve pipe
There is upper wear-resistant seal circle, drilling rod is provided with the air-permeating hole between upper wear-resistant seal circle and lower wear-resistant seal circle, and sleeve pipe sets
Have the connecting hole between upper wear-resistant seal circle and lower wear-resistant seal circle, sleeve outer wall is provided with pipe joint, pipe joint one end with
Guide duct connects, and the pipe joint other end is connected with connecting hole；
Described processing technique comprises the following steps:
(1) carrying out at the scene holes takes cylindrical core, and the core diameter being taken is 62.5mm；
(2) one or twice chip area are first offered in core circumferential surface along generatrix direction, the transverse section of chip area is in pros
Shape, this foursquare length of side is 3mm；
(3) core is placed in fixture, core lower end manipulates clamp core, really after extending into 4-6cm in fixture simultaneously
The centrage protecting core is overlapped with the centrage of drilling pipe；
(4) open radial drill and aerator, the rotating speed to 160 revs/min of adjustment radial drill, control drilling pipe at the uniform velocity to move downwards,
Moving down with drilling pipe, the high-pressure blast that aerator produces passes sequentially through wind gathering cover, guide duct, pipe joint, connecting hole, ventilative
Hole enters into inside drilling rod, and due to being provided with baffle plate inside drilling rod, downwardly in drilling pipe, high-pressure blast is drilling pipe to the wind in drilling rod
Lower end drill bit cooling, landwaste is discharged by chip area, falls on platen, when drilling pipe lower end adjacent gripper 0.5-1cm, stop to
Lower movement, exits from drilling pipe, and closure rocker arm bores and aerator, thus core is processed into the long column type that external diameter is 51mm
Sample；
(5) according to rock mechanics experiment code specify, experiment when to prepare diameter 50mm, the standard specimen of a height of 100mm or
Person is a diameter of 50mm, is highly the test specimen of 30mm；Need long cylindrical sample is cut, be less than 50mm using an internal diameter
Pvc pipe, the generatrix direction along pvc pipe offers one penetrating flexible slotted eye, and long cylindrical sample is inserted in pvc pipe,
Long cylindrical sample is tightly wrapped by pvc pipe, measures the length stretching out pvc pipe equal to 100mm or 50mm, by pvc pipe and long column
Type sample is placed into and is cut on cutting machine, and the cutting sheet of cutting machine cuts along the end edge edge of pvc pipe, in the process of cutting
In speed to be controlled, fltting speed is slow, and pressure value is generally 15psi, is 0.1034mpa；
(6) and then by the circumferential surface of the sample of 100mm and/or 50mm length carry out grinding, during grinding, emery wheel enters 0.2mm every time,
Stop grinding after the external diameter of sample reaches 50mm, thus sample is processed into the standard of diameter 50mm, a height of 100mm
Test specimen or a diameter of 50mm, the test specimen highly for 30mm.
Drilling pipe upper inside wall and drilling rod bottom outer wall are structure identical positive six prismsby structure, and drilling rod bottom is plugged in brill
In cylinder top, it is provided with the spacing ring flat-plate contacting with drilling pipe upper end top pressure outside drilling rod, radially inserts between drilling pipe and drilling rod
It is provided with alignment pin.
Dust collecting system is provided with radial drill, dust collecting system includes air exhauster, dust suction supervisor, bagroom and installation
Set, installation set is set in drilling pipe bottom, is provided with positioning bearing, installation set top and bottom between installation set inner ring and drilling pipe outer wall
It is respectively equipped with a bearing gland, radial drill sidepiece is vertically provided with guide rail, guide rail slides and is provided with slide block, in installation set
It is connected by a horizontally disposed cross bar between portion and slide block, installation set bottom is connected with the uncovered poly- dust hood in bottom, poly- dirt
The lower end edge of cover is less than drilling pipe lower end, and poly- dust hood top is provided with least two aspirating holes, and poly- dust hood top is provided with and aspirating hole
The dust shield of corresponding connection, dust shield is in up-small and down-big conical structure, and each dust shield top is respectively connected with a dust suction
Arm, the outlet that the air inlet of bagroom is responsible for dust suction is connected, and the outlet of all of dust suction arm is with dust suction supervisor's
Import connects, and the inlet scoop of air exhauster is connected with the air outlet of bagroom；
When carrying out drilling operation, open and in air exhauster, poly- dust hood, produce negative pressure, the dust producing in drilling process passes sequentially through
Aspirating hole, dust shield, dust suction arm and dust suction supervisor are pumped in bagroom；Drilling pipe in rotary course, with drilling pipe
Move down, cross bar band movable slider moves down along guide rail, due to the positioning setting of the bearing and setting of cross bar, poly- dust hood
Only moving down with drilling pipe.
Using technique scheme, the weak cemented rock test specimen drilling system of the rock in the present invention is with existing radial drill
On the basis of improve, in drilling process by the way of air-cooled, and a kind of sealing and connecting device is set up on drilling rod, bore
When bar rotates, sealing and connecting device does not turn and can blow to drilling pipe lower end, adjusts the size of cooling wind by volume damper,
Upper wear-resistant seal circle and lower wear-resistant seal enclose the occurrence of prevent high-pressure blast excessive.Positive six are adopted between drilling pipe and drilling rod
The socket join structure of prism is transmitting torsion, and be downwardly applied to pressure by spacing ring flat-plate, it is to avoid so that alignment pin is subject to stronger
Shearing force and damage, alignment pin plays and axially connects drilling pipe and the effect of drilling rod.The fixture being adopted adopts Application No.
201510968069.8 the cohesion device in disclosed entitled a kind of standard specimen course of processing.
Due to dust collecting system setting it is ensured that in drilling process operator be not subject to dust pollution, effective protection operator's
Healthy.
In sum, processing technique of the present invention is simple and easy and simple to handle, is holed on the spot in scene rock especially with drilling system
Core sample carries out drilling through processing, and opens up one or twice chip area in core circumferential surface along generatrix direction in advance, effectively keeps away
Exempt from chip in the weak cemented rock standard specimen course of processing and gather the bit freezing causing during test specimen, it is to avoid drilling is ill
Phenomenon, can ensure that the integrity of test specimen by the way of air-cooled, easy and simple to handle, science environmental protection, is easy to process.
Brief description
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the axial sectional view between sealing and connecting device in the present invention, drilling rod, drilling pipe and dust collecting system；
Fig. 3 is the structural representation of pvc sleeve pipe in the present invention；
Fig. 4 is the structural representation that core circumferential surface opens up twice chip area.
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the rock of the present invention weak cemented rock test specimen drilling system, including radial drill
1st, fixture 2, sealing and connecting device 3, guide duct 4, wind gathering cover 5, volume damper 6 and aerator 7；Fixture 2 is arranged on radial drill 1
Platen 8 on, aerator 7 is located at radial drill 1 side, and the drilling rod 9 of radial drill 1 is hollow-core construction, the coaxial connection in drilling rod 9 lower end
There is drilling pipe 10, be provided with the sealing and connecting device 3 positioned at drilling pipe 10 top outside drilling rod 9, be provided with above drilling pipe 10 in drilling rod 9
Baffle plate 11, the air outlet of aerator 7 is connected with one end of guide duct 4 by wind gathering cover 5, the other end of guide duct 4 and sealing
Attachment means 3 connect, and the air outlet of sealing and connecting device 3 is connected with drilling rod 9 inwall；The internal diameter of drilling pipe 10 is 51mm, and air quantity is adjusted
Section valve 6 is located on guide duct 4.
Sealing and connecting device 3 includes the coaxial sleeve pipe 12 being set on drilling rod 9, sleeve pipe 12 inwall and drilling rod 9 outer wall it
Between rotated by least two thrust bearing 13 and connect, sleeve pipe 12 lower end is provided with lower ring plate 14, outside lower ring plate 14 inner ring and drilling rod 9
It is provided with lower wear-resistant seal circle 15 between wall, in sleeve pipe 12, be provided with the upper ring plate of a thrust bearing 13 lower section positioned at foot
16, it is provided with wear-resistant seal circle 17 between upper ring plate 16 inner ring and drilling rod 9 outer wall, drilling rod 9 is provided with positioned at upper wear-resistant seal circle
Air-permeating hole 18 between 17 and lower wear-resistant seal circle 15, sleeve pipe 12 is provided with positioned at upper wear-resistant seal circle 17 and lower wear-resistant seal circle
Connecting hole 19 between 15, sleeve pipe 12 outer wall is provided with pipe joint 20, and pipe joint 20 one end is connected with guide duct 4, and pipe joint 20 is another
One end is connected with connecting hole 19.
Drilling pipe 10 upper inside wall and drilling rod 9 bottom outer wall are structure identical positive six prismsby structure, and drilling rod 9 bottom plugs
In drilling pipe 10 top, outside drilling rod 9, be provided with the spacing ring flat-plate 21 contacting with drilling pipe 10 upper end top pressure, drilling pipe 10 and drilling rod 9 it
Between be radially inserted with alignment pin 22.
Dust collecting system is provided with radial drill 1, dust collecting system includes air exhauster 31, dust suction supervisor 32, bagroom
33 and installation set 34, installation set 34 is set in drilling pipe 10 bottom, is provided with locating shaft between installation set 34 inner ring and drilling pipe 10 outer wall
Hold 35, installation set 34 top and bottom are respectively equipped with a bearing gland 36, and radial drill 1 sidepiece is vertically provided with guide rail
37, guide rail 37 slides and is provided with slide block 38, pass through a horizontally disposed cross bar 39 between installation set 34 top and slide block 38 even
Connect, installation set 34 bottom is connected with the uncovered poly- dust hood 40 in bottom, the lower end edge of poly- dust hood 40 is less than drilling pipe 10 lower end, poly- dirt
Cover 40 tops and be provided with least two aspirating holes 41, poly- dust hood 40 top is provided with the dust shield 42 of connection corresponding with aspirating hole 41, inhale
Dust hood 42 is in up-small and down-big conical structure, and each dust shield 42 top is respectively connected with a dust suction arm 43, bag collection
The air inlet of device 33 is connected with the outlet of dust suction supervisor 32, and the outlet of all of dust suction arm 43 is connected with the import of dust suction supervisor 32
Connect, the inlet scoop of air exhauster 31 is connected with the air outlet of bagroom 33.
The technique being carried out the processing of rock weak cemented rock test specimen using drilling system, is comprised the following steps:
(1) carrying out at the scene holes takes cylindrical core 23, a diameter of 62.5mm of core 23 being taken；
(2) one or twice chip area 24, the transverse section of chip area 24 are first offered in core 23 circumferential surface along generatrix direction
Square, this foursquare length of side is 3mm；
(3) core 23 is placed in fixture 2, core 23 lower end extend into manipulation fixture 2 clamping core after 4-6cm in fixture 2
23, guarantee that the centrage of core 23 is overlapped with the centrage of drilling pipe 10 simultaneously；
(4) open radial drill 1 and aerator 7, the rotating speed to 160 revs/min of adjustment radial drill 1, control drilling pipe 10 downwards at the uniform velocity
Mobile, with moving down of drilling pipe 10, the high-pressure blast that aerator 7 produces passes sequentially through wind gathering cover 5, guide duct 4, pipe joint
20th, connecting hole 19, air-permeating hole 18 enter into inside drilling rod 9, due to being provided with baffle plate 11 inside drilling rod 9, enter under the wind direction in drilling rod 9
Enter in drilling pipe 10, high-pressure blast is the drill bit cooling of drilling pipe 10 lower end, and landwaste is discharged by chip area 24, falls on platen 8, works as brill
During cylinder 10 lower end adjacent gripper 20.5-1cm, stop moving down, exit from drilling pipe 10, closure rocker arm bores 1 and aerator 7,
Thus core 23 is processed into the long cylindrical sample that external diameter is 51mm；When carrying out drilling operation, open air exhauster 31, gather
Negative pressure is produced, the dust producing in drilling process passes sequentially through aspirating hole 41, dust shield 42, dust suction arm 43 and inhales in dust hood 40
Dirt supervisor be pumped in bagroom 33；In rotary course, with moving down of drilling pipe 10, cross bar 39 drives drilling pipe 10
Slide block 38 moves down along guide rail 37, and due to the positioning setting of bearing 35 and the setting of cross bar 39, poly- dust hood 40 is only with brill
Cylinder 10 move down；
(5) according to rock mechanics experiment code specify, experiment when to prepare diameter 50mm, the standard specimen of a height of 100mm or
Person is a diameter of 50mm, is highly the test specimen of 30mm；Need long cylindrical sample is cut, be less than 50mm using an internal diameter
Pvc pipe 25, the generatrix direction along pvc pipe 25 offers one penetrating flexible slotted eye 26, long cylindrical sample is inserted into pvc
In pipe 25, long cylindrical sample is tightly wrapped by pvc pipe 25, measures the length stretching out pvc pipe 25 equal to 100mm or 50mm, will
Pvc pipe 25 and long cylindrical sample are placed into and are cut on cutting machine, and the cutting sheet of cutting machine is cut along the end edge edge of pvc pipe 25
Under, speed to be controlled during cutting, fltting speed is slow, and pressure value is generally 15psi, is 0.1034mpa；
(6) and then by the circumferential surface of the sample of 100mm and/or 50mm length carry out grinding, during grinding, emery wheel enters 0.2mm every time,
Stop grinding after the external diameter of sample reaches 50mm, thus sample is processed into the standard of diameter 50mm, a height of 100mm
Test specimen or a diameter of 50mm, the test specimen highly for 30mm.
Rock in the present invention weak cemented rock test specimen drilling system to improve on the basis of existing radial drill 1,
In drilling process by the way of air-cooled, and a kind of sealing and connecting device 3 is set up on drilling rod 9, when drilling rod 9 rotates, close
Envelope attachment means 3 do not turn and can blow to drilling pipe 10 lower end, adjust the size of cooling wind by volume damper 6, upper wear-resisting
Sealing ring 17 and lower wear-resistant seal circle 15 play the occurrence of prevent high-pressure blast excessive.Using just between drilling pipe 10 and drilling rod 9
The socket join structure of six prisms is transmitting torsion, and be downwardly applied to pressure by spacing ring flat-plate 21, it is to avoid so that alignment pin 22 is subject to
Damage to stronger shearing force, alignment pin 22 plays and axially connects drilling pipe 10 and the effect of drilling rod 9.The fixture 2 being adopted
Using the cohesion device in the entitled a kind of standard specimen course of processing disclosed in Application No. 201510968069.8.
The present embodiment not makees any pro forma restriction to the shape of the present invention, material, structure etc., every according to this
Any simple modification, equivalent variations and modification that bright technical spirit is made to above example, belong to the technology of the present invention side
The protection domain of case.
Claims (3)
1. rock weak cemented rock test specimen processing technique it is characterised in that: described processing technique adopt a kind of drilling system, should
Drilling system includes radial drill, fixture, sealing and connecting device, guide duct, wind gathering cover, volume damper and aerator；Fixture sets
Put on the platen of radial drill, aerator is located at radial drill side, and the drilling rod of radial drill is hollow-core construction, and drilling rod lower end is coaxial
It is connected with drilling pipe, outside drilling rod, is provided with the sealing and connecting device above drilling pipe, in drilling rod, be provided with the gear above drilling pipe
Plate, the air outlet of aerator is connected with one end of guide duct by wind gathering cover, and the other end of guide duct is with sealing and connecting device even
Connect, the air outlet of sealing and connecting device is connected with drilling rod inwall；The internal diameter of drilling pipe is 51mm, and volume damper is located at guide duct
On；
Sealing and connecting device includes the coaxial sleeve pipe being set on drilling rod, passes through at least two between internal surface of sleeve pipe and drilling-rod external wall
Individual thrust bearing rotates and connects, and its lower end is provided with lower ring plate, is provided with lower wear-resistant seal between lower ring plate inner ring and drilling-rod external wall
Circle, is provided with the upper ring plate below a thrust bearing of foot, sets between upper ring plate inner ring and drilling-rod external wall in sleeve pipe
There is upper wear-resistant seal circle, drilling rod is provided with the air-permeating hole between upper wear-resistant seal circle and lower wear-resistant seal circle, and sleeve pipe sets
Have the connecting hole between upper wear-resistant seal circle and lower wear-resistant seal circle, sleeve outer wall is provided with pipe joint, pipe joint one end with
Guide duct connects, and the pipe joint other end is connected with connecting hole；
Described processing technique comprises the following steps:
(1) carrying out at the scene holes takes cylindrical core, and the core diameter being taken is 62.5mm；
(2) one or twice chip area are first offered in core circumferential surface along generatrix direction, the transverse section of chip area is in pros
Shape, this foursquare length of side is 3mm；
(3) core is placed in fixture, core lower end manipulates clamp core, really after extending into 4-6cm in fixture simultaneously
The centrage protecting core is overlapped with the centrage of drilling pipe；
(4) open radial drill and aerator, the rotating speed to 160 revs/min of adjustment radial drill, control drilling pipe at the uniform velocity to move downwards,
Moving down with drilling pipe, the high-pressure blast that aerator produces passes sequentially through wind gathering cover, guide duct, pipe joint, connecting hole, ventilative
Hole enters into inside drilling rod, and due to being provided with baffle plate inside drilling rod, downwardly in drilling pipe, high-pressure blast is drilling pipe to the wind in drilling rod
Lower end drill bit cooling, landwaste is discharged by chip area, falls on platen, when drilling pipe lower end adjacent gripper 0.5-1cm, stop to
Lower movement, exits from drilling pipe, and closure rocker arm bores and aerator, thus core is processed into the long column type that external diameter is 51mm
Sample；
(5) according to rock mechanics experiment code specify, experiment when to prepare diameter 50mm, the standard specimen of a height of 100mm or
Person is a diameter of 50mm, is highly the test specimen of 30mm；Need long cylindrical sample is cut, be less than 50mm using an internal diameter
Pvc pipe, the generatrix direction along pvc pipe offers one penetrating flexible slotted eye, and long cylindrical sample is inserted in pvc pipe,
Long cylindrical sample is tightly wrapped by pvc pipe, measures the length stretching out pvc pipe equal to 100mm or 50mm, by pvc pipe and long column
Type sample is placed into and is cut on cutting machine, and the cutting sheet of cutting machine cuts along the end edge edge of pvc pipe, in the process of cutting
In speed to be controlled, fltting speed is slow, and pressure value is generally 15psi, is 0.1034mpa；
(6) and then by the circumferential surface of the sample of 100mm and/or 50mm length carry out grinding, during grinding, emery wheel enters 0.2mm every time,
Stop grinding after the external diameter of sample reaches 50mm, thus sample is processed into the standard of diameter 50mm, a height of 100mm
Test specimen or a diameter of 50mm, the test specimen highly for 30mm.
2. the weak cemented rock test specimen processing technique of rock according to claim 1 it is characterised in that: drilling pipe upper inside wall and
Drilling rod bottom outer wall is structure identical positive six prismsby structure, and drilling rod bottom is plugged in drilling pipe top, is provided with outside drilling rod
The spacing ring flat-plate contacting with drilling pipe upper end top pressure, is radially inserted with alignment pin between drilling pipe and drilling rod.
3. the weak cemented rock test specimen processing technique of rock according to claim 1 it is characterised in that: arrange on radial drill
There is dust collecting system, dust collecting system includes air exhauster, dust suction supervisor, bagroom and installation set, installation set is set under drilling pipe
Portion, is provided with positioning bearing between installation set inner ring and drilling pipe outer wall, installation set top and bottom are respectively equipped with a bearing gland,
Radial drill sidepiece is vertically provided with guide rail, guide rail slides and is provided with slide block, passes through one between installation set top and slide block
Horizontally disposed cross bar connects, and installation set bottom is connected with the uncovered poly- dust hood in bottom, and the lower end edge of poly- dust hood is less than drilling pipe
Lower end, poly- dust hood top is provided with least two aspirating holes, and poly- dust hood top is provided with the dust shield of connection corresponding with aspirating hole, dust suction
In up-small and down-big conical structure, each dust shield top is respectively connected with a dust suction arm, the air intake of bagroom to cover
Mouth is connected with the outlet of dust suction supervisor, and the import that the outlet of all of dust suction arm is responsible for dust suction is connected, the air draught of air exhauster
Mouth is connected with the air outlet of bagroom；
When carrying out drilling operation, open and in air exhauster, poly- dust hood, produce negative pressure, the dust producing in drilling process passes sequentially through
Aspirating hole, dust shield, dust suction arm and dust suction supervisor are pumped in bagroom；Drilling pipe in rotary course, with drilling pipe
Move down, cross bar band movable slider moves down along guide rail, due to the positioning setting of the bearing and setting of cross bar, poly- dust hood
Only moving down with drilling pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611027665.7A CN106338422B (en) | 2016-11-22 | 2016-11-22 | The weak cemented rock test specimen processing technology of rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611027665.7A CN106338422B (en) | 2016-11-22 | 2016-11-22 | The weak cemented rock test specimen processing technology of rock |
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| CN106338422B CN106338422B (en) | 2019-10-01 |
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| CN114047040A (en) * | 2021-10-22 | 2022-02-15 | 北京中煤矿山工程有限公司 | Preparation method for remolding large-volume rock sample in drilling method sinking hob breaking weak cemented rock test |
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| CN109663969A (en) * | 2017-10-13 | 2019-04-23 | 天津市升发科技股份有限公司 | Cutter device is used in a kind of production and processing of aluminum profile |
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| CN108214657A (en) * | 2017-12-29 | 2018-06-29 | 重庆来来来商贸有限公司 | Produce the punch device of keyboard |
| CN108194043A (en) * | 2018-01-30 | 2018-06-22 | 贵州理工学院 | The evaluation of coal mine Roof And Floor Stability drills through device with different-diameter core |
| CN108194043B (en) * | 2018-01-30 | 2023-11-03 | 贵州理工学院 | Device is got with different diameter core drills to colliery top bottom plate stability evaluation |
| CN108956223A (en) * | 2018-05-29 | 2018-12-07 | 中国矿业大学 | Remodeling procedure in the weak cementing sandstone room of one kind |
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| CN114047040A (en) * | 2021-10-22 | 2022-02-15 | 北京中煤矿山工程有限公司 | Preparation method for remolding large-volume rock sample in drilling method sinking hob breaking weak cemented rock test |
| CN114047040B (en) * | 2021-10-22 | 2024-03-26 | 北京中煤矿山工程有限公司 | Preparation method for remolding large-volume rock sample in drilling method shaft sinking hob broken weak cemented rock test |
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