CN108776072A - Shock loading loading device, the pilot system and its test method for simulating shock loading - Google Patents
Shock loading loading device, the pilot system and its test method for simulating shock loading Download PDFInfo
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- CN108776072A CN108776072A CN201810721104.XA CN201810721104A CN108776072A CN 108776072 A CN108776072 A CN 108776072A CN 201810721104 A CN201810721104 A CN 201810721104A CN 108776072 A CN108776072 A CN 108776072A
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- 238000011068 loading method Methods 0.000 title claims abstract description 137
- 230000035939 shock Effects 0.000 title claims abstract description 82
- 238000010998 test method Methods 0.000 title claims abstract description 8
- 239000011435 rock Substances 0.000 claims abstract description 87
- 238000005553 drilling Methods 0.000 claims abstract description 85
- 238000004088 simulation Methods 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 230000033001 locomotion Effects 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 27
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- 108010053835 Catalase Proteins 0.000 claims description 6
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- 230000000737 periodic effect Effects 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 238000007373 indentation Methods 0.000 description 8
- 238000009527 percussion Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
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- 230000035515 penetration Effects 0.000 description 2
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0053—Cutting or drilling tools
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0236—Other environments
- G01N2203/0242—With circulation of a fluid
Abstract
The present invention provides a kind of shock loading loading device, the pilot systems and its test method of simulation shock loading, belong to broken rock experimental rig field.Shock loading loading device, including cam mechanism and power drilling tool.Cam mechanism includes cylindrical cam and can drive the driving device of cylindrical cam rotation, and the power output shaft of driving device and the rotating shaft transmission of cylindrical cam connect, and cylindrical cam offers curved slot.Power drilling tool includes drill body, cam follower and elastic component, elastic component is sheathed on drill body, cam follower is sheathed on drill body and cam follower setting conducting part, conducting part and drill body can limit elastic component movement, conducting part can coordinate with curved slot, so that conducting part being capable of linear reciprocating motion when cylindrical cam rotates.When driving device power output shaft rotation when, conducting part when cylindrical cam rotate can linear reciprocating motion, thus to drill body generate stabilization periodic shock load.
Description
Technical field
The present invention relates to broken rock experimental rig fields, are rushed in particular to a kind of shock loading loading device and simulation
Hit the pilot system and its test method of load.
Background technology
Currently, efficient breaking technique for rock is core and the drilling engineering theoretical research of oil gas well drilling technical field
Key content.In petroleum industry, rock fracture in dynamic indentation is always the principal mode of catalase.Rock fracture in dynamic indentation is broken in traditional rotation
On the basis of rock, using rock feature easily broken under percussion, percussion mechanism is connected on drill bit, drill bit is carried in sound
Broken rock under lotus synergy, to achieve the purpose that broken rock.With deepening continuously for oil-gas exploration, difficulties in exploration increasingly increases,
Especially in some bad grounds, the drilling effect of rotary drilling is unsatisfactory, and rate of penetration is low, and drilling failure takes place frequently, drilling well
It is of high cost.Meanwhile having studies have shown that resonance percussion drilling, resonant excitation can greatly improve the Oscillation Amplitude of rock, promote
Catalase, and then improve rate of penetration.In order to understand the inherent mechanism of drill bit broken rock in depth, improve artificially to drill bit broken rock speed
The control ability of degree, there is an urgent need for experiment and theoretical research are carried out to this.
Resonance percussion drilling technology as a kind of emerging efficient rock-breaking technology, at present under resonance shock loading broken rock machine
The research of reason rests on theory stage more, lacks verification experimental verification, it is difficult to obtain unified understanding.The key of experimental rig be how
Stable shock loading is provided.And lack a kind of loading device for the shock loading being suitable for simulating resonance percussion drilling at present,
And it keeps stablizing in the loading procedure of shock loading.
Invention content
The present invention provides a kind of shock loading loading devices, it is intended to improve the stability of the loading procedure of shock loading.
The invention is realized in this way：
A kind of shock loading loading device, including cam mechanism and power drilling tool.
The cam mechanism includes cylindrical cam and can drive the driving device of the cylindrical cam rotation, the driving
The power output shaft of device is connect with the rotating shaft transmission of the cylindrical cam, and the cylindrical cam offers curved slot.
The power drilling tool includes drill body, cam follower and elastic component, and the elastic component is sheathed on the drilling tool
Ontology, the cam follower is sheathed on the drill body and the cam follower is provided with conducting part, the conducting part
The elastic component can be limited in predeterminable area with the drill body, the conducting part can coordinate with the curved slot,
So that the conducting part being capable of linear reciprocating motion when the cylindrical cam rotates.
Further, in a kind of embodiment provided by the invention, one end of the drill body is provided with annular flange,
Described elastic component one end is abutted with the conducting part, and the other end of the elastic component is abutted with the annular flange.
Further, in a kind of embodiment provided by the invention, one end of the elastic component is abutted with the conducting part,
The other end of the elastic component is fixedly connected with the drill body.
The present invention separately provides a kind of pilot system of simulation shock loading, including shock loading loading device above-mentioned, brill
Press loading device and drilling tool holder.
Wherein, the bit pressure loading device is connect with one end of the drill body, and the bit pressure loading device can be
The drill body provides rotary force.
The drilling tool holder is configured for limiting the radial motion of the drill body, and the drill body being capable of phase
To the drilling tool holder pivots.
Further, in a kind of embodiment provided by the invention, the pilot system of the simulation shock loading further includes
High-pressure pump, the high-pressure pump are connect with the drill body, and the high-pressure pump can be the fluid of the inside of the drill body
Pressure is provided.
Further, in a kind of embodiment provided by the invention, the pilot system of the simulation shock loading further includes
Acoustic emission sensor, the acoustic emission sensor are mounted on rock, and the acoustic emission sensor is configured to collect rock
The voice signal of shattering process.
Further, in a kind of embodiment provided by the invention, the drilling tool holder includes the first side plate and the second side
Plate, is provided with drilling tool fixture between first side plate and second side plate, the drilling tool fixture is sheathed on the drilling tool sheet
Body can limit the radial motion of the drill body.
Further, in a kind of embodiment provided by the invention, the pilot system of the simulation shock loading further includes
Double-layer tank, the double-layer tank are provided with opening, and one end of the drill body is installed in the double-layer tank, and described
The opening of drill body and the double-layer tank is tightly connected.
Further, in a kind of embodiment provided by the invention, the drilling tool fixture and the drilling tool holder are detachable
It connects and the drilling tool fixture is at least 2, the high-pressure pump is disposed therein on a drilling tool fixture, the driving dress
It installs and is placed on another described drilling tool fixture.
Further, in a kind of embodiment provided by the invention, the pilot system of the simulation shock loading further includes
Rock loading device, the rock loading device can apply rock sample the load in three directions of x, y, z.
The present invention also provides a kind of test methods of simulation shock loading, are rushed using simulation according to any one of claims 10
The pilot system for hitting load carries out, and includes the following steps：
Rock is clamped by the rock loading device and the load in tri- directions x-y-z is provided rock；
The inside of the power drilling tool is delivered fluid to by the high-pressure pump, while stream is injected in the double-layer tank
Body keeps rock in fluid floodage；
Shock loading is provided by the cylindrical cam, the bit pressure loading device provides dead load.
The beneficial effects of the invention are as follows：The shock loading loading device that the present invention is obtained by above-mentioned design comprising convex
Take turns mechanism and power drilling tool.Cam mechanism includes cylindrical cam and can drive the driving device of cylindrical cam rotation, driving dress
The rotating shaft transmission of the power output shaft and cylindrical cam set connects, and cylindrical cam offers curved slot.Power drilling tool includes boring
Have ontology, cam follower and elastic component.When the rotation of the power output shaft of driving device, cylindrical cam rotates therewith, and passes
The portion of leading can coordinate with curved slot so that conducting part when cylindrical cam rotates can linear reciprocating motion, elastic component quilt
It is limited in predeterminable area, elastic component is compressed with the movement of conducting part, and shock loading is transmitted to drill body, is thus bored
Tool ontology produces stable periodic shock load.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of shock loading loading device provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of power drilling tool provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of the pilot system of simulation shock loading provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of drilling tool fixture provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of the load loading direction of rock loading device of the embodiment of the present invention.
Icon：100- shock loading loading devices；10- cam mechanisms；12- cylindrical cams；121- curved slots；123-
Shaft；14- driving devices；141- power output shafts；20- power drilling tools；22- drill bodies；221- annular flanges；223- is bored
Head；24- cam followers；241- conducting parts；26- elastic components；200- simulates the pilot system of shock loading；30- drilling tool holders；
The first side plates of 31-；311- Cam rests；The second side plates of 33-；35- drilling tool fixtures；351- through-holes；353-T type blocks；355- spiral shells
Pit；311- Cam rests；40- bit pressure loading devices；50- pedestals；60- high-pressure pumps；70- rock loading devices；80- is double-deck
Water tank；82- internal layer tank bodies；84- outer layer tank bodies；86- sealing structures.
Specific implementation mode
To keep the purpose, technical scheme and advantage of embodiment of the present invention clearer, implement below in conjunction with the present invention
The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without creative efforts, belongs to the present invention
The range of protection.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement guarantor below
The scope of the present invention of shield, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without creative efforts, belongs to the present invention
The range of protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it is to be understood that, term " centre ", "inner", "outside", etc. instructions orientation or position
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without referring to
Show or imply that signified equipment or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot manage
Solution is limitation of the present invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be direct phase
Even, can also can be indirectly connected through an intermediary that the interaction of the connection or two elements inside two elements is closed
System.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood as the case may be
Meaning.
Embodiment 1
An embodiment of the present invention provides a kind of shock loading loading devices 100, including cam mechanism 10 and power drilling tool
20。
- 2 are please referred to Fig.1, cam mechanism 10 includes that cylindrical cam 12 and the driving that cylindrical cam 12 can be driven to rotate fill
14 are set, the power output shaft 141 of driving device 14 is sequentially connected with the shaft 123 of cylindrical cam 12, and cylindrical cam 12 offers
Curved slot 121.
Power drilling tool 20 includes drill body 22, cam follower 24 and elastic component 26, and elastic component 26 is sheathed on drilling tool sheet
Body 22, cam follower 24 is sheathed on drill body 22 and conducting part 241, conducting part 241 and drilling tool is arranged in cam follower 24
Ontology 22 can limit elastic component 26 in predeterminable area, and conducting part 241 can coordinate with curved slot 121, so that conducting part
241 being capable of linear reciprocating motion when cylindrical cam 12 rotates.
In the present embodiment, the shock loading loading device 100 by the cylindrical cam 12 of cam mechanism 10 and cam from
The gearing of the conducting part 241 of moving part 24, when cylindrical cam 12 rotates, conducting part 241 is moved along curved slot 121,
26 conducting part 241 of elastic component does reciprocating linear motion along the vertical direction, and elastic component 26 is compressed in predeterminable area, is needed
Bright, predeterminable area mentioned here refers to the area between the one end of conducting part 241 and elastic component 26 far from conducting part 241
Domain.Shock loading is passed to drill body 22 by elastic component 26 after being compressed, and drill body 22 produces the stable period as a result,
Property variation shock loading, so as to improve stability problem in shock loading loading procedure.In addition, cylindrical cam 12 can be with
Realize the characteristics of motion of Various Complex, it is simple in structure, compact, cam follower 24 can be made to obtain larger stroke.
Further, one end of drill body 22 is provided with annular flange 221, and 26 one end of elastic component is supported with conducting part 241
It connects, the other end of elastic component 26 is abutted with annular flange 221.What needs to be explained here is that elastic component 26 is only disposed on biography
It leads between portion 241 and annular flange 221, conducting part 241 and annular flange 221 provide constraints to the both ends of elastic component 26, pass
Lead 241 cylindrical cam 12 of portion being limited in elastic component 26 in predeterminable area, compressed in predeterminable area.Optionally,
Elastic component 26 is spring.
Further, one end of elastic component 26 is abutted with one end of conducting part 241 with conducting part 241, elastic component 26 it is another
One end is fixedly connected with drill body 22.Specifically, in this embodiment, one end of 22 spring of drill body is supported with conducting part 241
It connects, the other end and the drill body 22 of spring weld.
Optionally, in this embodiment, curved slot 121 can be provided with multiple, and curved slot 121 can be with conducting part
241 cooperations generate various forms of shock loadings.It is appreciated that as long as the design for changing curved slot 121 generates not
With the shock loading of form, it should be noted that various forms of shock loadings mentioned herein refer to shock loading amplitude, punching
In size variation rule and the period for hitting load, as long as thrin changes, the form of i.e. shock loading changes.
Referring to Fig. 3, the embodiment of the present invention also provides a kind of pilot system 200 of simulation shock loading, including impact carries
Lotus loading device 100, drilling tool holder 30 and bit pressure loading device 40.
Wherein, bit pressure loading device 40 is connect with one end of the drill body 22, and bit pressure loading device 40 can be to bore
Have ontology 22 and rotary force is provided.
Drilling tool holder 30 is configured to limit about the radial motion of drill body 22, and drill body 22 can be with respect to drilling tool
Holder 30 rotates.
In the present embodiment, bit pressure loading device 40 is that drill body 22 provides rotary power, is the simulation of rock break-off process
The dead load of vertical direction is provided.The shock loading that cam mechanism 10 generates is transmitted to drill body by cam follower 24
22.Final dead load and shock loading form the shock loading of unsteady flow, and dead load and resonant excitation collective effect expand
The response range of rock and the zone of action of load so that the broken rock under the synergy of Dynamic And Static Loads.Further, drilling tool
Ontology 22 further includes drill bit 223, and drill bit 223 and one end of drill body 22 are detachably connected, can also be integrally formed.It is optional
Ground, in the present embodiment, drill bit 223 are threadedly coupled with drill body 22.By adjusting bit pressure loading device 40 and cam mechanism
10,223 rock break-off process of drill bit under the conditions of different bit pressures, different impact period and magnitude parameters can be simulated, to grind
Study carefully the rule relationship between parameters and efficiency of breaking rock.In addition, the pilot system 200 of simulation shock loading being capable of truly mould
Quasi- resonance percussion drilling load so that entire experiment has preferable consistency with prototype, is broken in finally obtained drilling process
The inherent mechanism achievement of rock is more reliable.
Further, the pilot system 200 for simulating shock loading further includes high-pressure pump 60, high-pressure pump 60 and drill body 22
Connection, high-pressure pump 60 can provide pressure for the fluid of the inside of drill body 22.
Since the rotation of drill bit 223 causes drill bit 223 and rock frictional test to generate heat in rock break-off process, to reduce drill bit
223 temperature reduce the damage to drill bit 223, usually inject fluid to reduce temperature, wherein flowing to the inside of power drilling tool 20
Body can be water, can also be other liquid, and fluid can be injected drill body 22 and can be drilling tool sheet by high-pressure pump 60
Fluid inside body 22 provides pressure.
Further, drilling tool holder 30 includes the first side plate 31 and the second side plate 33, the first side plate 31 and the second side plate 33
Between be provided with drilling tool fixture 35, drilling tool fixture 35, which is sheathed on drill body 22, can limit the radial motion of drill body 22.
In the present embodiment, drilling tool fixture 35 is sheathed on drill body 22, and stable drill body 22 can be played during broken rock
Effect, can prevent that drill body 22 will not radially direction shifts during broken rock.
Further, in this embodiment drilling tool fixture 35 and drilling tool holder 30 be detachably connected and drilling tool fixture 35 at least
It it is 2, high-pressure pump 60 is disposed therein on a drilling tool fixture 35, and driving device 14 is set on another drilling tool fixture 35.
Referring to Fig. 4, specifically, drilling tool fixture 35 is provided with through-hole 351 at plate, the middle part of drilling tool fixture 35, wherein through-hole 351
Internal diameter slightly larger than drill body 22 outer diameter so that drill body 22 can pass through through-hole 351.The both ends of drilling tool fixture 35
It is provided with T-block 353, T-block 353 is provided with threaded hole 355, then the both ends of drilling tool fixture 35 are respectively formed Liang Ge spills area up and down
Domain.First side plate 31 and the second side plate 33 correspondence open up cavity body, and T-block 353 can be in the first side plate 31 and the second side plate
Sliding in 33.In addition, the first side plate 31 and the second side plate 33 correspondence open up a row threaded mounting hole, when needing to drilling tool fixture
35 when being fixed, and drilling tool fixture 35 is slid into setting position first, then be inserted into threaded mounting hole and and T-block with screw
353 threaded hole 355 connects.The threaded mounting hole of different height can be selected to be installed according to actual needs, such as according to brill
The length for having ontology 22 carries out the appropriate adjusting of height.
Further, in this embodiment the pilot system 200 for simulating shock loading further includes acoustic emission sensor, it is described
Acoustic emission sensor is mounted on rock, and acoustic emission sensor is configured to collect the voice signal of catalase process.
Acoustic emission sensor collects the voice signal generated during catalase, can analyze different rocks using the voice signal and exist
In shattering process, different broken situations and stress state variation, to analyze, judge that the catalase under different loading is imitated
Fruit.
Simulate 14 power output shaft of pilot system 200 driving device, 14 driving device, 141 cylindrical cam 12 of shock loading
Further, the pilot system 200 for simulating shock loading further includes rock load dress to 123 driving device of shaft, 14 cylindrical cam 12
70 are set, the rock loading device 70 can apply rock the load in three directions of x, y, z.Specifically, rock loading device
70 include triaxial cell, referring to Fig. 5, rock is fabricated to cuboid or cube, rock is capable of in triaxial cell
Each face provides load and provides axis pressure in Z-direction for rock wherein providing confining pressure in X-direction and Y direction for rock.
The load that rock loading device 70 can apply rock in three directions of x, y, z is provided to rock, it can be according to practical geology ring
The magnitude of load in three directions of crustal stress size pair in border is adjusted, and simulates the effect of the rock fracture in dynamic indentation under different ground stress environments
Rate.The pilot system 200 of the simulation shock loading can also compare the efficiency of rock fracture in dynamic indentation under different stress.
Further, in this embodiment the pilot system 200 for simulating shock loading further includes double-layer tank 80, it is described double
Layer water tank 80 is provided with opening, and one end of the drill body 22 is installed in double-layer tank 80, and drill body 22 and bilayer
The opening of water tank 80 is tightly connected.Sealing structure 86 specifically, referring to Fig. 3, double-layer tank 80 have internal layer tank body
82 and outer layer tank body 84, storage cavity, internal layer water tank sheet are formed between internal layer tank body 82 and outer layer tank body 84
Body 82 and outer layer tank body 84 all have an opening, and the opening of drill body 22 and double-layer tank 80 is provided with sealing knot
Structure 86 prevents fluid excessive with 22 drill body of drill body, 22 sealing structure 86.Optionally, sealing structure 86 can be rubber
Layer, rubber layer are set in 22 outer layer of drill body.Wherein, rock loading device 70 is arranged in the inside of internal layer tank body 82.
Optionally, outer layer tank body 84 is provided with circulating outlet, the fluid flowed out from the inside of drill body 22 in rock break-off process
It can be pooled in double-layer tank 80, and can be discharged through circulating outlet.Circulating outlet can connect outer tube by fluid weight
The inside of new injection drill body 22, fluid can be repeatedly circulated.In addition, the fluid that high-pressure pump 60 conveys is through drill body
22 flow through drill bit 223, while fluid is injected in double-layer tank 80, so as to simulate item of the rock in fluid floodage
223 broken rock situation of drill bit under part, the more true geological environment of closing to reality deep layer drilling process mid-deep strata rock stratum.
Optionally, the pilot system 200 for simulating shock loading further includes pedestal 50, and pedestal 50 is connect with drilling tool holder 30,
Wherein double-layer tank 80 is installed on base 50.
The present invention also provides a kind of test methods of simulation shock loading, include the following steps：
Rock is clamped by rock loading device 70 and the load in tri- directions x-y-z is provided rock；
The inside of power drilling tool 20 is delivered fluid to by high-pressure pump 60, while injecting fluid in double-layer tank 80, is kept
Rock is in fluid floodage；
Shock loading is provided by cam mechanism 10, bit pressure loading device 40 provides dead load.
In the present invention is implemented, can according to the magnitude of load in three directions of crustal stress size pair of practical geological environment into
Row adjustment, simulates the efficiency of the rock fracture in dynamic indentation under different ground stress environments.Rock fracture in dynamic indentation under different stress can also be compared
Efficiency.Keep rock in fluid floodage, drill bit under conditions of so as to simulate rock in fluid floodage
223 broken rock situations, the more true geological environment of closing to reality deep layer drilling process mid-deep strata rock stratum.Pass through cam mechanism 10
The gearing of cylindrical cam 12 and the conducting part 241 of cam follower 24, when cylindrical cam 12 rotates, 241 edge of conducting part
It curved slot 121 to do reciprocating linear motion, generates stable periodically variable shock loading, bit pressure loading device 40 can
Stable rotary force, i.e. dead load are provided for it.This method simulates the broken rock feelings under the shock loading of unsteady flow as a result,
Condition.
Further, this method further includes following steps：
The acoustical signal that rock sample generates in shattering process is collected by acoustic emission sensor.
In the present embodiment, it can utilize voice signal that can analyze different rocks in shattering process, be crushed situation
Change corresponding voice signal with stress state, to analyze, judge the rock-breaking effect under different loading.
In conclusion a kind of shock loading loading device 100 provided by the invention, passes through the cylindrical cam of cam mechanism 10
12 with the gearing of the conducting part 241 of cam follower 24, when cylindrical cam 12 rotates, conducting part 241 is recessed along curve
Slot 121 does reciprocating linear motion, and stable periodically variable shock loading is generated, so as to improve shock loading loading procedure
Middle stability problem.
A kind of pilot system 200 of simulation shock loading provided by the invention, bit pressure loading device 40 can be to power drill
Tool 20 generates a constant bit pressure, and load transfer is simulation of the drill bit 223 in rock break-off process to drill bit 223 by power drilling tool 20
The dead load of vertical direction is provided；And shock loading loading device 100 is capable of providing with periodically variable shock loading, punching
The period and amplitude for hitting load can be adjusted by the concrete structure of cam mechanism 10, such as the curved slot of cylindrical cam 12
121 concrete shape, final dead load and shock loading form the shock loading of unsteady flow.High-pressure pump 60 can be drilling tool sheet
Fluid inside body 22 provides pressure, as long as and ensureing the fluid in double-layer tank 80 can keep rock to be in and be submerged shape
State can more really simulate the geological environment residing for rock stratum in deep layer drilling rock break-off process, improve test result reliability.
A kind of test method of simulation shock loading provided by the invention, can be big according to the crustal stress of practical geological environment
The small magnitude of load to three directions is adjusted, and simulates the efficiency of the rock fracture in dynamic indentation under different ground stress environments.The simulation is rushed
The efficiency of rock fracture in dynamic indentation under different stress can also be compared by hitting the pilot system 200 of load.Rock is kept to be flooded in fluid
State, 223 broken rock situation of drill bit under conditions of so as to simulate rock in fluid floodage, more closing to reality are deep
The true geological environment of layer drilling process mid-deep strata rock stratum.Pass through the cylindrical cam 12 and cam follower 24 of cam mechanism 10
Conducting part 241 gearing, when cylindrical cam 12 rotates, conducting part 241 makees reciprocating linear fortune along curved slot 121
It is dynamic, generate stable periodically variable shock loading.And bit pressure loading device 40 can provide stable rotary force for it, i.e.,
Dead load.This method simulates the broken rock situation under the shock loading under unsteady flow as a result, broken with true percussion drilling of shaking
Rock is more nearly, and simulation effect is more preferable.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field
For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of shock loading loading device, which is characterized in that including
Cam mechanism, the cam mechanism include cylindrical cam and can drive the driving device of the cylindrical cam rotation, institute
The power output shaft for stating driving device is connect with the rotating shaft transmission of the cylindrical cam, and it is recessed that the cylindrical cam offers curve
Slot；And
Power drilling tool, the power drilling tool include drill body, cam follower and elastic component, and the elastic component is sheathed on described
Drill body, the cam follower is sheathed on the drill body and the cam follower is provided with conducting part, the biography
The elastic component can be limited in predeterminable area by leading portion and the drill body, and the conducting part can match with the curved slot
It closes, so that the conducting part being capable of linear reciprocating motion when the cylindrical cam rotates.
2. shock loading loading device according to claim 1, which is characterized in that one end of the drill body is provided with
Annular flange, described elastic component one end are abutted with the conducting part, and the other end of the elastic component is abutted with the annular flange.
3. a kind of pilot system of simulation shock loading, which is characterized in that including
Claim 1-2 any one of them shock loading loading devices；
Bit pressure loading device, the bit pressure loading device are connect with one end of the drill body, the bit pressure loading device energy
Enough rotary force is provided for the drill body；And
Drilling tool holder, the drilling tool holder are configured for limiting the radial motion of the drill body, the drill body
It being capable of the relatively described drilling tool holder pivots.
4. the pilot system of simulation shock loading according to claim 3, which is characterized in that the simulation shock loading
Pilot system further includes high-pressure pump, and the high-pressure pump is connect with the drill body, and the high-pressure pump can be the drilling tool sheet
The fluid of the inside of body provides pressure.
5. the pilot system of simulation shock loading according to claim 3, which is characterized in that further include voice sending sensor
Device, the acoustic emission sensor are mounted on rock, and the acoustic emission sensor is configured to collect catalase process
Voice signal.
6. the pilot system of simulation shock loading according to claim 4, which is characterized in that the drilling tool holder includes the
Side plate and the second side plate are provided with drilling tool fixture, the drilling tool fixture set between first side plate and second side plate
The radial motion of the drill body can be limited set on the drill body.
7. the pilot system of simulation shock loading according to claim 4, which is characterized in that the simulation shock loading
Pilot system further includes double-layer tank, and the double-layer tank is provided with opening, and one end of the drill body is installed on described pair
In layer water tank, and the opening of the drill body and the double-layer tank is tightly connected.
8. it is according to claim 6 simulation shock loading pilot system, which is characterized in that the drilling tool fixture with it is described
Drilling tool holder is detachably connected and the drilling tool fixture is at least 2, and the high-pressure pump is disposed therein a drilling tool folder
On tool, the driving device is set on another described drilling tool fixture.
9. the pilot system of simulation shock loading according to claim 7, which is characterized in that further include rock load dress
It sets, the rock loading device can apply rock sample the load in three directions of x, y, z.
10. a kind of test method of simulation shock loading, which is characterized in that it is carried using the simulation impact described in claim 9
The pilot system of lotus carries out, and includes the following steps：
Rock is clamped by the rock loading device and the load in tri- directions x-y-z is provided rock；
The inside of the power drilling tool is delivered fluid to by the high-pressure pump, while injecting fluid in the double-layer tank, is protected
Rock is held in fluid floodage；
Shock loading is provided by the cylindrical cam, the bit pressure loading device provides dead load.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810721104.XA CN108776072A (en) | 2018-07-03 | 2018-07-03 | Shock loading loading device, the pilot system and its test method for simulating shock loading |
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| CN201810721104.XA CN108776072A (en) | 2018-07-03 | 2018-07-03 | Shock loading loading device, the pilot system and its test method for simulating shock loading |
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