CN107044931A - A kind of rock test is with extremely brittle rock end face Plane surface grinding machine - Google Patents
A kind of rock test is with extremely brittle rock end face Plane surface grinding machine Download PDFInfo
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- CN107044931A CN107044931A CN201710243765.1A CN201710243765A CN107044931A CN 107044931 A CN107044931 A CN 107044931A CN 201710243765 A CN201710243765 A CN 201710243765A CN 107044931 A CN107044931 A CN 107044931A
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- grinding machine
- plane surface
- surface grinding
- guide rod
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Life Sciences & Earth Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
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- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of rock test with extremely brittle rock end face Plane surface grinding machine, including base, table mechanism, actuating mechanism and clamping device, workbench, which is connected on base by elastic component and limited by locating part, pushes height, workbench is provided with sand paper, actuating mechanism realizes the straight line and repeatedly moves that guide rod is converted into by motor using crank block principle, clamping device is connected on guide rod for clamping rock sample, bottom on sand paper in moving reciprocatingly under actuating mechanism drive for rock sample, so as to realize polishing.The Plane surface grinding machine of the present invention realizes rock sample and the steady contact and automation of sand paper are polished, it disclosure satisfy that the requirement that rock mechanics experiment is prepared for extremely brittle property rock sample, the probability that rock sample section rim crumbles is reduced, the traditional form that manually hand-held prepares pole brittle rock was abandoned in the past.It is simple in construction, applicable to facilitate, be easy to be generalized to indoor rock mechanics experiment rock sample preparation field.
Description
Technical field
The present invention relates to rock mechanics experiment technical field, and in particular to one kind is applied to pole brittle rock (such as coal petrography)
The end face Plane surface grinding machine of sample.
Background technology
Earth surface is covered by the rock of about 60~120 kilometers of a thickness, and rock is used as the earth's crust to be distributed most commonly used day
Right material, it is closely bound up with the engineering field such as building, mining, water conservancy.Some authoritative scholars of the world today propose：21 century is ground
The century that lower space development is utilized.With the continuous expansion of city size, the scarce resource growing tension such as soil, water, to underground
Want space have become promotion urban sustainable development, build have height prevent and reduce natural disasters level, build resource-conserving, environment friend
Good type society and the important measure in city.The works such as key water control project, tunnel excavation, underground pipe gallery construction, mining tunnel, construction of subway
Cheng Jianshe be unable to do without the research to rock material, special for mechanical property of the rock under various complex working conditions and destruction
Property, it is desirable to the failure mechanism in people's further investigation rock loading procedure and intensity and the shadow of deformation characteristic in destructive process
Ring, so as to preferably instruct Practical Project construction.
At present, the research for rock mainly has the methods such as rock mechanics experiment, analytic solutions and numerical simulation, wherein rock
Stone mechanical test can be by the operating mode under the conditions of the design simulation much complex of testing program, so as to obtain rock material not
With the fundamental property and changing rule under operating mode, and the failure mode of rock can be intuitively found out, so that in time to work
Cheng Jianshe carries out protective treatment.
Due to the difference of material composition, mineral structure, the origin cause of formation and evolutionary process so that the physical property of rock material is deposited
In very big difference, the anisotropism and anisotropy of rock determine that different types of rock material has different properties,
The rock material of identical type equally has larger difference.During rock mechanics experiment, rock sample is prepared often over brill
Coring, rock sample cutting and end face polish three step completions, and the end face of wherein rock sample is polished in most cases
Rock Double End Plane surface grinding machine is used, minority uses polishing machine tool, but both of which is applied to the harder rock of quality, but not
Suitable for pole brittle rock, reason is that both of which uses the emery wheel rotated at a high speed, and rock sample is fixed on workbench, grinds
Rotation aftertable starts to automatically move back and forth again wheel at a high speed, and each emery wheel that moves back and forth has certain amount of feeding, so that
Realization is polished to rock sample Double End, but for pole brittle rock (such as coal petrography), when the emery wheel of high speed rotation is in feeding
During just start contact rock sample moment be easy to allow rock sample end face edge to crumble, cause extremely brittle property rock sample to use both-end
The probability of success that face Plane surface grinding machine is polished is no more than 30%.Therefore, for such as extremely brittle rock sample of coal petrography class, the method typically polished
It is that man-hour manually hand-held rock sample is polished on sand paper, it is therefore an objective to first allow rock sample to be polished again after being contacted with sand paper, can so subtract
The probability that small rock sample end face edge crumbles, but bring several prominent questions：(1) man-hour manually hand-held operation adds work
Amount；(2) the rock sample breakage caused due to artificial fluctuation of service also occurs in hand-held；(3) hand-held is easy
Both-end surface error is caused, so that it is difficult to comply fully with ISRM (ISRM) small for rock sample both ends of the surface irregularity degree
In 0.05mm requirement.Prepared based on problem above to extremely brittle property rock sample and bring larger difficulty, conventional rock both-end
Face Plane surface grinding machine and polishing machine tool are difficult to.
At present, the Patents in terms of rock test is polished with rock sample have：
CN201620464433.7 discloses a kind of two-sided Plane surface grinding machine, using front and rear double group emery wheels, i.e., the gold of front and rear arrangement
Firm emery wheel, resin emery wheel, to rock sample corase grind, fine grinding.
CN201310079221.8 discloses a kind of clamp size-adjustable rock grinder, by alignment jig size come
Obtain the experiment test specimen of different cross section size and length.
CN201110054418.7 discloses a kind of chip resistant type rock sample and cuts device and cut technique, by rock
Cutting is combined together with polishing.
CN201110204054.6 discloses a kind of preparation method of rock mass sample, and drill bit is polished to drilling hole wherein using
Wall and bottom hole carry out polishing processing.
CN201510001717.2 discloses a kind of process equipment for adapting to different appearance and size rock sample batch polishings and side
Method, it is complete to limit the extreme lower position of movable cross bar decline by adjusting the position of the positioner on lifting support using grinding stone
Into positioning function, it is ensured that accurate polishing.
Above rock sanding apparatus is first starting device during being polished to rock, then contacts rock end face, so
One has very big destruction come the bruting process to pole brittle rock, is polished dedicated for the pole such as such as coal petrography brittle rock end face
Equipment almost do not have, the extremely brittle rock end face Plane surface grinding machine that end face irregularity degree required precision can be especially met simultaneously is even more
It is few.
The content of the invention
The present invention can not meet the work(of accurate polishing experiment pole brittle rock (such as coal petrography) for conventional rock Plane surface grinding machine
It can lack, its main purpose is to provide a kind of extremely brittle property rock test core end face Plane surface grinding machine, meets and rock mechanics is tried
Test and polished with the accurate of Standard rock sample of different size, so as to improve success rate prepared by extremely brittle property rock sample, promote rock mechanics
The research of experiment.
In order to achieve the above object, the present invention is adopted the following technical scheme that：
A kind of rock test with extremely brittle rock end face Plane surface grinding machine, including：
Base；
Table mechanism, on base, the table mechanism includes workbench, sand paper, elastic component and locating part,
Workbench is connected on base by elastic component, and sand paper is layed in table surface, and locating part is located at below workbench to limit
The height that workbench is pushed；
Actuating mechanism, on base, the actuating mechanism includes actuator, tumbler, connecting rod, guide rod and guide rail,
Connecting rod is connected between tumbler and guide rod, and actuator driving tumbler is rotated, and drives guide rod on workbench by connecting rod
Make straight reciprocating motion along guide rail in side；
Clamping device, is connected on guide rod, and the clamping device includes at least two fixture sets, rubber sleeve and locking group
Part, at least two fixtures set are cooperated and the cavity to be formed for fixing rock sample are connected by locked assembly, and the rubber is arranged
In fixture cover relative inner and directly contacted with rock sample；
Rock sample is fixed in clamping device, and bottom is contacted with sand paper, and rock sample is under actuating mechanism drive in doing past on sand paper
Multiple motion, so as to realize polishing.
Optionally, the locating part is block, on the base；At least two blocks are located at the workbench at least phase
To the lower section of both sides, the height of the block is less than the height of the elastic component nature.
Optionally, the actuator includes the frequency converter of motor and connection motor, and the tumbler is wheel disc, and motor drives
Wheel disc rotates and carries out rotational speed regulation by frequency converter.
Optionally, the actuating mechanism also includes connector, and the connector is fixed on the end of the guide rod and slip
It is matched with the guide rail；The end of the connecting rod is provided with circular shaft, and the connector is provided with the groove being adapted to circular shaft, the company
Fitting and connecting rod are connected by circular shaft and groove.
Optionally, the actuating mechanism also includes another guide rail, and another guide rail is located at the motion path of the guide rod
On, another end of guide rod is snug fit in another guide rail.
Optionally, the guide rod is provided with some clamping devices.
Optionally, the fixture set includes two straight panels and the arc being connected between two straight panel, the rubber
It is sheathed on the inside of arc, the arc of two fixtures set cooperatively forms cylindrical cavity, and the straight panel of both sides passes through the locked assembly respectively
Locking.
Optionally, the locked assembly includes the first screw rod, fixing nut and the first travelling nut, and first screw rod is worn
Straight panel described in two cooperated is crossed, and two ends are fixed by the fixing nut and the first travelling nut respectively.
Optionally, the fixture is put provided with buckle, and the guide rod is provided with the neck that be adapted to buckle, by buckle and
Neck coordinates the connection for realizing fixture set and guide rod.
Optionally, the clamping device also includes the second screw rod, nut and the second travelling nut；The buckle is inverted L
Type, described second screw rod one end is fixed with the nut, and the other end passes through the side wall of the neck and moves spiral shell described second
Tight against the buckle under mother's cooperation.
The present invention is compared with conventional rock Double End Plane surface grinding machine, and its effect is extremely obvious.This rock test is with extremely brittle
Property rock end face Plane surface grinding machine realize the steady contact and automation of rock sample and sand paper and polish, reduce rock sample section rim and crumble
Probability, disclosure satisfy that the requirement that rock mechanics experiment is prepared for extremely brittle property rock sample, maximum characteristic is to be applicable such as coal petrography
Etc. the preparation of extremely brittle property rock sample, multiple rock samples can be prepared simultaneously, and rock fixture is detachable, its specification also can be with rock mechanics
Experiment is changed with rock sample standard, abandons in the past the traditional form that manually hand-held prepares pole brittle rock.It is simple in construction, suitable
With convenience, it is easy to be generalized to indoor rock mechanics experiment rock sample preparation field.
Brief description of the drawings
Fig. 1 is a kind of front view of the extremely brittle rock end face Plane surface grinding machine of rock test of the present invention；
Fig. 2 is a kind of side view of the extremely brittle rock end face Plane surface grinding machine of rock test of the present invention；
Fig. 3 is a kind of top view of the extremely brittle rock end face Plane surface grinding machine of rock test of the present invention；
Fig. 4 is the guide rod of the present invention and the attachment structure schematic diagram of connecting rod；
Fig. 5 is the structural representation of the clamping device of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with drawings and examples.
Referring to figs. 1 to Fig. 3, a kind of extremely brittle rock end face Plane surface grinding machine of rock test includes base 1, table mechanism 2, moved
Make mechanism 3 and clamping device 4, table mechanism 2, actuating mechanism 3 and clamping device 4 may be contained within base 1.
Table mechanism 2 includes workbench 21, sand paper 22, elastic component (being, for example, spring 23) and locating part
Block 24), one layer of sand paper 22 is covered with workbench 21, and sand paper 22 firmly coheres with workbench 21.The bottom of workbench 21 connects 6
The larger spring 23 of hardness, spring 23 is rigidly connected with base 1, can realize in rock sample bruting process workbench 21 all the time with rock
Sample end face forceful contact, the larger purpose of spring 23 of selection hardness is to prevent workbench 21 from deforming excessive to cause rock sample end face to beat
There is larger error in honed journey irregularity degree.21 4 jiaos of lower section four blocks 24 of correspondence of workbench, block 24 is highly consistent, position
It is located on base 1.The height of block 24 is less than the height of the nature of spring 23.Nature mentioned here, refers to spring
23 states do not depressed in connecting working table 21, this is in order to which the compression height of workbench 21 is consistent, it is ensured that rock sample is polished
When be in plan-position.
With reference to Fig. 4, it (is, for example, wheel disc that actuating mechanism 3, which includes actuator (being, for example, motor 31 and frequency converter 32), tumbler,
33), connecting rod 34, guide rod 35, guide rail 36 and connector 37.Frequency converter 32 is connected with motor 31, can realize the rotating speed of motor 31
Regulation, so as to realize the control of rock sample polishing speed, prevents from causing rock sample to destroy slowly because of excessive velocities or excessively.The driven wheel of motor 31
Disk 33 is rotated, and a connecting rod 34 is connected on wheel disc 33, and the other end of connecting rod 34 connects a guide rod 35 by a connector 37, even
Fitting 37 moves along a straight line in guide rail 36, is realized using crank block principle and is converted into straight line and repeatedly moves by motor
Function.Specifically, connector 37 is fixed on the end of guide rod 35 and is snug fit in guide rail 36, and the end of connecting rod 34 is provided with circular shaft
341, connector 37 is provided with the groove 371 being adapted to circular shaft 341, and connector 37 and connecting rod 34 are matched somebody with somebody by circular shaft 341 with groove 371
Close connection.In order to improve the stability that guide rod 35 is moved repeatedly, another guide rail 38 is set again about in another terminal position of guide rod 35
Beam.Another guide rail 38 is located on the motion path of guide rod 35, and another end of guide rod 35 is snug fit in another guide rail 38.
With reference to Fig. 5, some clamping devices 4 are connected on guide rod 35, and each clamping device 4 includes two fixtures set 41, rubber respectively
Gum cover 42 and locked assembly 43, two fixtures set 41, which cooperates and formed by the connection of locked assembly 43, to be used to fix rock sample
Cavity, rubber sleeve 42 is located at the relative inner of fixture set 41 and directly contacted with rock sample.Specifically, fixture set 41 is straight including two
Plate 411,412 and the arc 413 being connected between two straight panel 411,412, rubber sleeve 42 is in arc 413
Side, the arc 413 of two fixtures set is cooperatively formed between cylindrical cavity, the straight panel 411 of both sides between straight panel 412 respectively by locking
Component 43 locks.Locked assembly 43 includes the first screw rod 431, the travelling nut 433 of fixing nut 432 and first, the first screw rod 431
Through two straight panels 411 and 412 of mutual cooperation, and two ends are fixed by the travelling nut 433 of fixing nut 432 and first respectively.
Fixture set 41 is made up of Steel material, and rubber sleeve 42 is arranged on the inner side of fixture set 41, it is therefore intended that protected in bruting process
The internal rock sample of shield.Rock sample 5 is put among fixture when using, adjustment position, by rotating the first travelling nut 433 by rock sample 5
It is fixed.Rock sample 5 is fixed in clamping device, and bottom is contacted with sand paper 22, and rock sample 5 is under the drive of actuating mechanism 3 on sand paper 22
Move reciprocatingly, so as to realize polishing.
Fixture set 41 is provided with buckle 44, and guide rod 35 is provided with the neck 351 being adapted to buckle 44, passes through buckle 44 and card
Groove 351 coordinates the connection for realizing fixture set 41 and guide rod 35.Buckle 44 is inverted L shape, is welded on fixture and covers 41 sides, the table of buckle 44
Face is left in groove, the neck 351 that the insertion guide rod 35 of buckle 44 leaves, the aperture of 351 Side wall drill of neck one, the one end of the second screw rod 45
Nut 46 is fixed with, the other end holds out against the groove of buckle 44 in neck through aperture and under the effect of the second travelling nut 47, this
On the one hand plant processing mode can fix rock fixture, on the other hand can realize the handling and replacing of rock fixture.
With the length 100mm that polishes, exemplified by diameter 50mm standard coal petrography rock sample, illustrate the embodiment of the present invention such as
Under：
(1) the rock clamping device 4 of Pass Test standard specification is changed, Standard rock sample is placed on rock clamping device 4
It is central, give workbench 21 1 downward starting forces, lower springs 23 is in micro- compressive state, 21 4 jiaos of workbench is contacted
To block 24, rock sample end face and the position of workbench 21 are now adjusted, it is ensured that rock sample end face effectively connects with the sand paper 22 on workbench
Touch, tighten the first travelling nut 433 and the second travelling nut 47, fixed rock sample prevents that rock sample loosens and damages rock sample during polishing.
(2) power knob is pressed, Plane surface grinding machine is started working, and can also change 31 turns of motor by adjusting frequency converter 32
Speed, so as to change polishing speed.
(3) after the polishing of rock sample end face is finished, power supply is closed, rock sample is shifted into other end, above step is repeated.
Above-described embodiment is only used for further illustrating a kind of rock test of the present invention with extremely brittle rock end face Plane surface grinding machine, but
The invention is not limited in embodiment, what every technical spirit according to the present invention was made to above example any simply repaiies
Change, equivalent variations and modification, each fall within the protection domain of technical solution of the present invention.
Claims (10)
1. a kind of rock test is with extremely brittle rock end face Plane surface grinding machine, it is characterised in that including：
Base；
Table mechanism, on base, the table mechanism includes workbench, sand paper, elastic component and locating part, work
Platform is connected on base by elastic component, and sand paper is layed in table surface, and locating part is located at below workbench to limit work
The height that platform is pushed；
Actuating mechanism, on base, the actuating mechanism includes actuator, tumbler, connecting rod, guide rod and guide rail, connecting rod
It is connected between tumbler and guide rod, actuator driving tumbler is rotated, and guide rod edge above workbench is driven by connecting rod
Guide rail makees straight reciprocating motion；
Clamping device, is connected on guide rod, and the clamping device includes at least two fixture sets, rubber sleeve and locked assembly, extremely
Few two fixtures set cooperates and the cavity to be formed for fixing rock sample is connected by locked assembly, and the rubber sleeve is located at fixture
The relative inner of set is simultaneously directly contacted with rock sample；
Rock sample is fixed in clamping device, and bottom is contacted with sand paper, and rock sample is under actuating mechanism drive in doing reciprocal fortune on sand paper
It is dynamic, so as to realize polishing.
2. rock test according to claim 1 is with extremely brittle rock end face Plane surface grinding machine, it is characterised in that：The locating part is
Block, on the base；At least two blocks are located at the lower section of the workbench at least opposite sides, the height of the block
Less than the height of the elastic component nature.
3. rock test according to claim 1 is with extremely brittle rock end face Plane surface grinding machine, it is characterised in that：The actuator bag
The frequency converter of motor and connection motor is included, the tumbler is wheel disc, and motor belt motor runner disc is rotated and turned by frequency converter
Velocity modulation section.
4. rock test according to claim 1 is with extremely brittle rock end face Plane surface grinding machine, it is characterised in that：The actuating mechanism
Also include connector, the connector is fixed on the end of the guide rod and is snug fit in the guide rail；The connecting rod
End is provided with circular shaft, and the connector is provided with the groove being adapted to circular shaft, and the connector and connecting rod are matched somebody with somebody by circular shaft with groove
Close connection.
5. rock test according to claim 4 is with extremely brittle rock end face Plane surface grinding machine, it is characterised in that：The actuating mechanism
Also include another guide rail, another guide rail is located on the motion path of the guide rod, and another end of guide rod is slidably matched
In in another guide rail.
6. rock test according to claim 1 is with extremely brittle rock end face Plane surface grinding machine, it is characterised in that：Set on the guide rod
There are some clamping devices.
7. rock test according to claim 1 is with extremely brittle rock end face Plane surface grinding machine, it is characterised in that：The fixture set bag
Two straight panels and the arc being connected between two straight panel are included, the rubber sleeve is located on the inside of arc, two fixtures set
Arc cooperatively forms cylindrical cavity, and the straight panel of both sides is locked by the locked assembly respectively.
8. rock test according to claim 7 is with extremely brittle rock end face Plane surface grinding machine, it is characterised in that：The locked assembly
Including the first screw rod, fixing nut and the first travelling nut, straight panel described in first screw rod through two cooperated, and two
End is fixed by the fixing nut and the first travelling nut respectively.
9. rock test according to claim 1 is with extremely brittle rock end face Plane surface grinding machine, it is characterised in that：The fixture is put
Provided with buckle, the guide rod is provided with the neck being adapted to buckle, is coordinated by buckle and neck and realizes fixture set and guide rod
Connection.
10. rock test according to claim 9 is with extremely brittle rock end face Plane surface grinding machine, it is characterised in that：The clamping machine
Structure also includes the second screw rod, nut and the second travelling nut；The buckle is inverted L shape, and described second screw rod one end is fixed with
The nut, the other end passes through the side wall of the neck and under second travelling nut cooperation tight against the buckle.
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| CN201710243765.1A CN107044931B (en) | 2017-04-14 | 2017-04-14 | Extremely fragile rock end face grinding machine for rock test |
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|---|---|---|---|
| CN201710243765.1A CN107044931B (en) | 2017-04-14 | 2017-04-14 | Extremely fragile rock end face grinding machine for rock test |
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| CN107737659A (en) * | 2017-11-07 | 2018-02-27 | 徐州工程学院 | One kind is used for soil sample processing unit in underground engineering wastewater treatment integrated equipment |
| CN108489788A (en) * | 2018-06-29 | 2018-09-04 | 西安科技大学 | A kind of portable cutting machine for making coal petrography Mechanics Performance Testing test specimen |
| CN108871892A (en) * | 2018-06-04 | 2018-11-23 | 中钢集团新型材料（浙江）有限公司 | A kind of sample preparation methods for graphite microscopic optical structure characterization |
| CN109176192A (en) * | 2018-07-25 | 2019-01-11 | 中国石油天然气股份有限公司 | Machining device and machining method for end face of rock sample |
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