CN104265262B - Drilling rod monitoring method and drilling rod supervising device - Google Patents
Drilling rod monitoring method and drilling rod supervising device Download PDFInfo
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- CN104265262B CN104265262B CN201410378333.8A CN201410378333A CN104265262B CN 104265262 B CN104265262 B CN 104265262B CN 201410378333 A CN201410378333 A CN 201410378333A CN 104265262 B CN104265262 B CN 104265262B
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- 238000005553 drilling Methods 0.000 title claims abstract description 171
- 238000012544 monitoring process Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 88
- 239000010959 steel Substances 0.000 claims abstract description 88
- 230000035772 mutation Effects 0.000 claims abstract description 38
- 238000006073 displacement reaction Methods 0.000 claims description 64
- 230000008859 change Effects 0.000 claims description 6
- 230000000246 remedial effect Effects 0.000 abstract description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
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- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of drilling rod monitoring method and drilling rod supervising device.The drilling rod monitoring method includes step：Pulling force Sudden Changing Rate and run of steel value when S1, acquisition main hoisting tension value mutation；S2, determined according to the run of steel value it is current just in elevated drilling rod；S3, when the pulling force Sudden Changing Rate be more than or equal to it is described just in the weight of the outer layer bar of elevated drilling rod when, judge described current just occur rod failure in elevated drilling rod and export alarm signal.The drilling rod monitoring method that the present invention is provided may determine that rod failure region, and then be easy to operating personnel to adopt remedial measures in time；And error in judgement is small.
Description
Technical field
The present invention relates to rotary drilling rig field, more particularly to a kind of drilling rod monitoring method and drilling rod supervising device.
Background technology
Rotary drilling rig is a kind of soil taking hole forming filling pile construction machinery, and its operating principle is mainly the driving brill by unit head
Bar, realizes rotary bucket rotary cutting ground, is then lifted out to outside hole unloading soil, through periodic cycle operation, until pore-forming.Churning driven
The advantages of dynamic stable drive of equipment and efficiency high, applied on bases such as a variety of grounds such as bored concrete pile, diaphragm wall, strengthening of foundation
It is used widely in work.
Drilling rod is that rotary drilling rig realizes one of important mechanism of deep well drilling.Drilling rod be arranged at rotary drilling rig unit head and
Between drill bit, for transmitting the load such as moment of torsion, axial compressive force.Drilling rod generally includes the coaxial nested multiple poles set, and
Positioned at most middle core bar.At present, rotary drilling rig is in the course of the work because band often occurs for misoperation or other problems
Bar failure.Wherein, in the case that rod failure refers to that interior bar is not also fully retracted to outer bar inside in master winch lifting process, outer bar
Lifted in advance due to clamping stagnation or other factors.The harm of rod failure operation is：If there is a little disturbance in the external world and causes outer bar
Clamping stagnation situation disappear, then outer bar will be dropped down with freely falling body, to master winch steel wire rope, master winch reductor and motor with
And unit head causes great damage.
In order to prevent or mitigate the damage that drilling rod rod failure is brought, technical scheme used in the prior art includes：
Judge whether occur rod failure according to main hoisting tension variable quantity；Specifically mode is：When the Sudden Changing Rate of main hoisting tension exceedes
During certain preset value, it is defined as there occurs rod failure.The defect of such a method is：It can not determine occur the drilling rod of rod failure, institute
So that the corresponding counter-measure for occurring after rod failure can not be determined, so that the counter-measure occurred after rod failure is not reasonable, it is impossible to
It is effectively prevented from the mechanical failure for occurring caused by after rod failure.In addition, the influence of other external force etc. also can be to master in drilling process
Elevator tension variations amount also has an impact, and can cause rod failure illusion, therefore rod failure error in judgement is larger.
The content of the invention
In view of this, the present invention proposes that a kind of error in judgement is small, and may determine that rod failure region drilling rod monitoring method and
Drilling rod supervising device.To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
On the one hand, the invention provides a kind of drilling rod monitoring method, including step：
Pulling force Sudden Changing Rate and run of steel value when S1, acquisition main hoisting tension value mutation；
S2, determined according to the run of steel value it is current just in elevated drilling rod；
S3, when the pulling force Sudden Changing Rate be more than or equal to it is described just in the weight of the outer layer bar of elevated drilling rod when, judge
It is described currently just to occur rod failure in elevated drilling rod and export alarm signal.
Further, the drilling rod monitoring method also includes step：
Run of steel value when S4, acquisition shutdown；
S5, according to the run of steel value during main hoisting tension value mutation, and run of steel value when shutting down calculates institute
State the current rod failure climb just risen after elevated drilling rod generation rod failure；
S6, lifting pressurization oil cylinder, range of lift is the rod failure climb；
S7, just it is unlocked to described in the outer layer bar of elevated drilling rod.
Further, the pulling force Sudden Changing Rate during main hoisting tension value mutation is obtained, including：
By setting main hoisting tension sensor, monitor the change of the main hoisting tension value and calculate the pulling force mutation
Amount.
Further, the run of steel value is obtained, including：
By setting master winch steel wire rope displacement transducer, first displacement data of the monitoring drill bit relative to ground；
By setting pressurization oil cylinder displacement transducer, second displacement data of the monitoring unit head relative to ground；
According to the second displacement data and the difference of first displacement data, the run of steel value is generated.
Further, the setting pressurization oil cylinder displacement transducer is specially：
In the inside of pressurization oil cylinder, magnetostrictive displacement sensor is set.
Accordingly, the present invention also provides a kind of drilling rod supervising device, including：
First parameter acquiring unit, for obtaining pulling force Sudden Changing Rate and run of steel value during main hoisting tension value mutation；
Drilling rod determining unit, it is current just in elevated drilling rod for being determined according to the run of steel value；
Judge alarm unit, for when the pulling force Sudden Changing Rate be more than or equal to it is described just elevated drilling rod outer layer bar
During weight, judgement is described currently just to be occurred rod failure in elevated drilling rod and exports alarm signal.
Further, the drilling rod supervising device also includes：
Second parameter acquiring unit, for obtaining run of steel value when shutting down；
Rod failure climb acquiring unit, for according to the run of steel value during main hoisting tension value mutation, and stops
Run of steel value during machine, calculates the current rod failure climb just risen after elevated drilling rod generation rod failure；
Adjustment unit, for lifting pressurization oil cylinder, range of lift is the rod failure climb；
Unlocking unit, for being just unlocked to described in the outer layer bar of elevated drilling rod.
Further, first parameter acquiring unit and/or the second parameter acquiring unit include：
Main hoisting tension sensor, for monitoring the change of the main hoisting tension value and calculating the pulling force Sudden Changing Rate.
Further, first parameter acquiring unit and/or the second parameter acquiring unit include：
Master winch steel wire rope displacement transducer, for monitoring first displacement data of the drill bit relative to ground；
Pressurize oil cylinder displacement transducer, for monitoring second displacement data of the unit head relative to ground；
Run of steel value generation unit, for the difference according to the second displacement data and first displacement data,
Generate the run of steel value.
Further, the pressurization oil cylinder displacement transducer includes：
Magnetostrictive displacement sensor inside the pressurization oil cylinder.
Relative to prior art, the drilling rod monitoring method that the present invention is provided obtains drawing during main hoisting tension value mutation first
Power Sudden Changing Rate and run of steel value, are then determined current just in elevated drilling rod according to run of steel value；Finally pulling force is dashed forward
Variate judges hair with just being compared in elevated outer layer drilling rod weight when pulling force mutation value is more than or equal to outer layer drilling rod weight
Green tape bar, and determine that the drilling rod currently lifted is rod failure drilling rod.Therefore, use the drilling rod monitoring method that provides of the present invention can be with
Judge rod failure region, and then be easy to operating personnel to adopt remedial measures in time.Also, the monitoring method combination run of steel,
The factor such as drilling rod weight and main hoisting tension mutation value carry out comprehensive descision whether rod failure, therefore error in judgement is small, Neng Goupai
The rod failure illusion given except the main hoisting tension Sudden Anomalies that other reasons are caused.
Brief description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic flow sheet for the drilling rod monitoring method that the embodiment of the present invention one is provided；
Fig. 2 is the drilling rod supervising device structural representation that the embodiment of the present invention two is provided；
The drilling rod supervising device structural representation that Fig. 3 provides for another embodiment of the present invention.
Description of reference numerals：
The drilling rod determining unit of 1 first parameter acquiring unit 2
3 judge the parameter acquiring unit of alarm unit 4 second
The adjustment unit of 5 rod failure climb acquiring unit 6
7 unlocking units
Embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.Below in conjunction with the accompanying drawings, each preferred embodiment of the present invention is described further.
Fig. 1 is referred to, the embodiment of the present invention one provides a kind of drilling rod monitoring method, including step：
Pulling force Sudden Changing Rate and run of steel value when S1, acquisition main hoisting tension value mutation；
S2, determined according to the run of steel value it is current just in elevated drilling rod；
S3, when pulling force Sudden Changing Rate be more than or equal to it is described just in the weight of the outer layer bar of elevated drilling rod when, judge described work as
It is preceding just to occur rod failure in elevated drilling rod and export alarm signal.
It should be noted that it is above-mentioned just elevated drilling rod outer layer bar refer to it is adjacent and be arranged with just in elevated drilling rod
A section drilling rod outside the section drilling rod.Above carried under principle, nominal situation (non-rod failure operating mode) according to drilling rod, when a certain section drilling rod
Above carry after finishing, the weight of the outer layer bar of the section drilling rod departs from onto master winch steel wire rope from unit head, so, main hoisting tension
Mutation, increases the weight of above-mentioned outer layer bar.Meanwhile, run of steel (under current working, the end of a pole to core bar head end away from
From) length of that section drilling rod that carries in reduction.When occurring rod failure, master winch steel wire rope pulling force can increase by a section suddenly and carry
The weight of the outer layer drilling rod of the drilling rod risen.Thus, it is considered as desirable by the inventor to utilize main hoisting tension mutation value and brill under real-time working condition
Main hoisting tension mutation value and run of steel corresponding relation under pole length, and nominal situation, to judge whether to occur rod failure, and
Judge rod failure region (i.e. which section drilling rod there occurs rod failure).
In above-mentioned steps, S1 is the pulling force Sudden Changing Rate and run of steel when obtaining main hoisting tension value mutation under real-time working condition
The step of value.The step is judged just in elevated drilling rod for follow-up, if rod failure and rod failure region provide premise.Step
In rapid S1：
Pulling force Sudden Changing Rate when obtaining main hoisting tension value mutation can specifically include：By setting main hoisting tension to sense
Device, monitors the change of main hoisting tension value and calculates pulling force Sudden Changing Rate.Those skilled in the art can pass according to main hoisting tension
The particular type of sensor selects the set location in master winch.For example：Above-mentioned main hoisting tension sensor is pin type pulling force
Sensor, is arranged at master winch pulley spindle bearing pin.Or, above-mentioned main hoisting tension sensor is drawplate type pulling force sensor, is set
In master winch arm-tie.The Sudden Changing Rate of main hoisting tension value can be obtained by obtaining the main hoisting tension value of adjacent time point and making the difference
, the interval of adjacent time point can be 0.5s~2s.
The acquisition run of steel value can specifically include：
S11, by setting master winch steel wire rope displacement transducer, first displacement data of the monitoring drill bit relative to ground；
S12, pass through set pressurization oil cylinder displacement transducer, monitoring unit head relative to ground second displacement data；
S13, the difference according to second displacement data and first displacement data, generate the run of steel value.
I.e. this step is to obtain run of steel by the relative distance obtained between drill bit and unit head.People in the art
Member is it is appreciated that above-mentioned steps S11 and S12 are not limited in sequence.Drill bit is displaced through master winch steel relative to ground
Cord displacement transducer is obtained, and master winch steel wire rope displacement is used for the decentralization length for obtaining master winch steel wire rope, the steel wire rope
Transfer the distance that length corresponds to drill bit and ground, i.e., above-mentioned first displacement data.Above-mentioned master winch steel wire rope displacement transducer
Its set location on master winch can be selected according to particular type.For example, above-mentioned master winch steel wire rope displacement transducer can
Think proximity switch, be arranged at the side of master winch pulley yoke, pulley per revolution proximity switch receives an induced signal,
And then can be by obtaining the rotation number of turns of pulley, and the girth of pulley obtains the movement length of master winch steel wire rope, i.e., under
Degree of lengthening；It can be and for example angular transducer, be arranged at the pulley spindle of master winch pulley, and then can be by obtaining pulley spindle
Rotational angle, and the girth of pulley obtain the decentralization length of master winch steel wire rope.
Unit head relative to the second displacement on ground is obtained by the oil cylinder displacement transducer that pressurizes, generally in churning driven
Before machine operation, unit head is substantially concordant with ground.In drilling process, operating personnel are according to specific operating mode operation pressurization oil
Cylinder changes the position of unit head, therefore, obtains the displacement (length is withdrawn in the stretching of oil cylinder) of pressurization oil cylinder namely obtains
Unit head is relative to the distance on ground, i.e., above-mentioned second displacement.First displacement and second displacement are made the difference, drilling rod is just generated long
Degree.For example：The sensor is set as：Position less than ground is on the occasion of the shift value being above the ground level is negative value.Master winch steel
The first displacement data that cord displacement transducer is detected is X meters, the second displacement number that pressurization oil cylinder displacement transducer is detected
According to for-Y meters, then run of steel is X- (- Y) rice, i.e. X+Y meters.
It is preferred that, setting pressurization oil cylinder displacement transducer is specially in the step S12：Set in the inside of pressurization oil cylinder
Magnetostrictive displacement sensor.Advantage using such a mode is：Accuracy of detection is high, and precision is within 1mm scopes.
The pulling force Sudden Changing Rate and run of steel when implementing main hoisting tension value mutation under operating mode can be obtained according to step S1
Value；Then implement to determine just the step of elevated drilling rod according to S2.The step is specifically as follows：The brill that step S1 is obtained
Each section run of steel of pole length and the rotary drilling rig is compared, and then determines it is currently which section drilling rod is in lifting shape
State, for example：The length that drilling rod is often saved in four section drilling rods is 10 meters, and the run of steel obtained according to step S1 is 25 meters, then can be with
Judgement is three pair rod in lifting.Step S0 can also be included before step S2 or S1：The run of steel that prestores and the brill of lifting
The corresponding relation of bar.For example：It is 10 meters of four section drilling rods for every section length, sets up following corresponding relation：
Then the run of steel value for obtaining step S1 in step S2 and the corresponding relation in step S0 are compared, it is determined that working as
It is preceding just in elevated drilling rod.
Can determine current elevated drilling rod according to step S2, then according to step S3 just can be determined whether rod failure and
Rod failure region.Specifically, step S3 by the pulling force mutation value obtained in step S1 and step S2 determine just elevated
The weight of drilling rod outer layer drilling rod is compared, when be mutated value of thrust be more than or equal to the outer layer drilling rod weight when, illustrate by
Rod failure occurs for the drilling rod of lifting, while exporting warning information.When being mutated value of thrust less than the outer layer drilling rod weight, illustrate not
Generation rod failure.The mutation of main hoisting tension value is likely due to interior section drilling rod and is fully inserted into what outer section drilling rod was caused, or
Person is due to that the resistances such as extraneous friction are caused, rather than rod failure situation.
Drilling rod monitoring method to the present embodiment so that every section length is 10 meters of four section drilling rod as an example carries out complementary explanation：
It is that 6 ton hour runs of steel are 25 meters to obtain master winch mutation value according to step S1；Determined according to step S2 current just elevated
Drilling rod be Section of three drilling rod；According to the more above-mentioned main hoisting tension mutation values of step S3, whether 6 tons be more than or equal to second section brill
The weight of bar (i.e. just in the outer layer bar of Section of three elevated drilling rod).If being more than or equal to, illustrate that Section of three drilling rod be not complete
Stretch into second section drilling rod and just occur rod failure, Section of three drilling rod is together withdrawn together with second section drilling rod, just causes main hoisting tension value
It is mutated in advance, mutation value is the weight of second section drilling rod.It is simultaneously emitted by alarm signal warning operating personnel.
Above-mentioned steps S0 can also include accordingly：Prestore each section drilling rod weight.And then it is easy to the deterministic process in step S3.
Further, judge occur after rod failure according to the method described above, due to the original such as inertia and operating personnel's operating error
Cause, even if can cause to judge occur rod failure, drilling rod still be may proceed to rise one end distance, and the resistance for now producing rod failure is once removed
Remove, drilling rod can fall above-mentioned distance in the form of freely falling body, there is the potential risk of mechanical failure.Asked to solve this
Topic, drilling rod monitoring method provided in an embodiment of the present invention can also comprise the following steps：
Run of steel value when S4, acquisition shutdown；
S5, according to the run of steel value during main hoisting tension value mutation, and run of steel value when shutting down calculates institute
State the current rod failure climb just risen after elevated drilling rod generation rod failure；
S6, lifting pressurization oil cylinder, range of lift is the rod failure climb；
S7, just it is unlocked to described in the outer layer bar of elevated drilling rod.
At the time of above-mentioned " during shutdown " refers to that operating personnel receive stopping rotary drilling rig operation after alarm signal.In step S4
Obtaining run of steel value can be operated according to above-mentioned steps S11 and S12.Drilling rod after rod failure just can be determined according to step S5
The distance of rising, the i.e. hanging distance of rod failure drilling rod.To be pressurizeed according to step S6 accordingly, distance (is pressurizeed accordingly for oil cylinder lifting
The cylinder rod of oil cylinder withdraws respective distance), pressurization oil cylinder drives unit head also above to put forward respective distance, although now occurring rod failure,
But it is zero to be comparable to rod failure climb, even if rod failure resistance is eliminated, will not also occur the situation of drilling rod free-falling, reduce
Occurs the probability of mechanical failure.Then the outer layer drilling rod of rod failure drilling rod is unlocked according to step S7, will be occurred
The drilling rod of rod failure is unlocked operation with its outer layer drilling rod.
As shown in the above, drilling rod monitoring method provided in an embodiment of the present invention obtains main hoisting tension value mutation first
When pulling force Sudden Changing Rate and run of steel value, then determined according to run of steel value current just in elevated drilling rod；Finally will
Pulling force mutation value in elevated outer layer drilling rod weight with just comparing, when pulling force mutation value is more than or equal to outer layer drilling rod weight
Judge occur rod failure, and determine that the drilling rod currently lifted is rod failure drilling rod.Therefore, using drilling rod provided in an embodiment of the present invention
Monitoring method may determine that rod failure region, and then be easy to operating personnel to adopt remedial measures in time.Also, the monitoring method knot
The factors such as bench drill pole length, drilling rod weight and main hoisting tension mutation value carry out comprehensive descision whether rod failure, therefore judge miss
Difference is small, can exclude the rod failure illusion that the main hoisting tension Sudden Anomalies that other reasons cause are given.
Fig. 2 is referred to, the embodiment of the present invention two accordingly provides a kind of drilling rod supervising device, including：
First parameter acquiring unit 1, for obtaining pulling force Sudden Changing Rate and run of steel value during main hoisting tension value mutation；
Drilling rod determining unit 2, it is current just in elevated drilling rod for being determined according to run of steel value；
Judge alarm unit 3, for when pulling force Sudden Changing Rate be more than or equal to just in the weight of the outer layer bar of elevated drilling rod when,
Judge currently just to occur rod failure in elevated drilling rod and export alarm signal.
In above-mentioned drilling rod supervising device, the run of steel value that the first parameter acquiring unit 1 is obtained is sent to drilling rod and determines list
Member 2, thus drilling rod determining unit 2 judge current just in elevated drilling rod.The run of steel value that first parameter acquiring unit 1 is obtained
It is sent to and judges alarm unit 3, judges the lifting drilling rod that alarm unit 3 determines pulling force Sudden Changing Rate and drilling rod determining unit 2
Outer layer drilling rod weight compares, when more than or equal to when, judge drilling rod determining unit 2 determine lifting drilling rod occur rod failure.
Further, due to inertia and operation reason, it can inevitably rise a segment distance after drilling rod rod failure, now produce
The resistance of green tape bar is once eliminate, and drilling rod can be fallen above-mentioned distance in the form of freely falling body, there is the potential hidden of mechanical failure
Suffer from.In order to solve this problem, Fig. 3 is referred to, drilling rod supervising device provided in an embodiment of the present invention can also include：
Second parameter acquiring unit 4, for obtaining run of steel value when shutting down；
Rod failure climb acquiring unit 5, for according to run of steel value during main hoisting tension value mutation, and when shutting down
Run of steel value, calculate and current the rod failure climb risen after rod failure just occur in elevated drilling rod；
Adjustment unit 6, for lifting pressurization oil cylinder, range of lift is the rod failure climb；
Unlocking unit 7, for being just unlocked to described in the outer layer bar of elevated drilling rod.
Thus, although occur rod failure, but it is zero to be comparable to rod failure climb, even if rod failure resistance is eliminated, also will not
Occur the situation of drilling rod free-falling, reduce the probability for occurring mechanical failure.
Above-mentioned first parameter acquiring unit 1 can include：
Main hoisting tension sensor, for monitoring the change of main hoisting tension value and calculating pulling force Sudden Changing Rate.This area skill
Art personnel can select the particular type of pulling force sensor according to set location of the main hoisting tension sensor in master winch.Tool
Body is such as：Above-mentioned main hoisting tension sensor is pin type pulling force sensor, is arranged at master winch pulley spindle bearing pin.Or, above-mentioned master
Elevator pulling force sensor is drawplate type pulling force sensor, is arranged at master winch arm-tie.The Sudden Changing Rate of main hoisting tension value can pass through
Obtain the main hoisting tension value of adjacent time point and make the difference acquisition, the interval of adjacent time point can be 0.5s~2s.
In addition, the first parameter acquiring unit 1 can also include：
Master winch steel wire rope displacement transducer, for monitoring first displacement data of the drill bit relative to ground；
Pressurize oil cylinder displacement transducer, for monitoring second displacement data of the unit head relative to ground；
Run of steel value generation unit, for the difference according to second displacement data and first displacement data, generation
Run of steel value.
Above-mentioned master winch steel wire rope displacement transducer can be proximity switch, be arranged at the side of master winch pulley yoke, sliding
Wheel per revolution proximity switch receives an induced signal, and then can be by obtaining the rotation number of turns of pulley, and pulley
Girth obtain the movement length of master winch steel wire rope, that is, transfer length；It can be and for example angular transducer, be arranged at master winch
The pulley spindle of pulley, and then can be by obtaining the rotational angle of pulley spindle, and the girth of pulley obtains master winch steel wire rope
Decentralization length.Above-mentioned pressurization oil cylinder displacement transducer can include：Magnetostrictive displacement sensing inside pressurization oil cylinder
Device.
In addition, being determined currently just in elevated drilling rod for the ease of drilling rod determining unit 2, and judge alarm unit 3
Judge whether rod failure.The drilling rod supervising device that the present embodiment is provided can also include pre- memory cell, and the pre- memory cell is used for pre-
Deposit run of steel and the corresponding relation of the drilling rod of lifting, and each weight for saving drilling rod.
As shown in the above, the first parameter acquiring unit in drilling rod monitoring method provided in an embodiment of the present invention is used for
Pulling force Sudden Changing Rate and run of steel value during acquisition main hoisting tension value mutation, drilling rod determining unit are used for according to run of steel value
It is determined that current just in elevated drilling rod；Judge that alarm unit is used to bore pulling force mutation value with the outer layer just in elevated drilling rod
Bar weight is compared, and judges occur rod failure when pulling force mutation value is more than or equal to its outer layer drilling rod weight, and determines to work as premise
The drilling rod risen is rod failure drilling rod.Therefore, rod failure region may determine that using boring rod set method provided in an embodiment of the present invention,
And then it is easy to operating personnel to adopt remedial measures in time.Also, the device combination run of steel, drilling rod weight and master winch are drawn
The factors such as power mutation value carry out comprehensive descision whether rod failure, therefore error in judgement is small, can exclude the master file that other reasons are caused
Raise the rod failure illusion that pulling force Sudden Anomalies are caused.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (8)
1. a kind of drilling rod monitoring method, it is characterised in that including step：
Pulling force Sudden Changing Rate and run of steel value when S1, acquisition main hoisting tension value mutation；
S2, determined according to the run of steel value it is current just in elevated drilling rod；
S3, when the pulling force Sudden Changing Rate be more than or equal to it is described just in the weight of the outer layer bar of elevated drilling rod when, judge described
Currently just occur rod failure in elevated drilling rod and export alarm signal；
Run of steel value when S4, acquisition shutdown；
S5, according to the run of steel value during main hoisting tension value mutation, and run of steel value when shutting down calculates described work as
It is preceding that the rod failure climb risen after rod failure just occurs in elevated drilling rod；
S6, lifting pressurization oil cylinder, range of lift is the rod failure climb；
S7, just it is unlocked to described in the outer layer bar of elevated drilling rod.
2. drilling rod monitoring method according to claim 1, it is characterised in that during the acquisition main hoisting tension value mutation
Pulling force Sudden Changing Rate, including：
By setting main hoisting tension sensor, monitor the change of the main hoisting tension value and calculate the pulling force Sudden Changing Rate.
3. drilling rod monitoring method according to claim 1, it is characterised in that obtain the run of steel value, including：
By setting master winch steel wire rope displacement transducer, first displacement data of the monitoring drill bit relative to ground；
By setting pressurization oil cylinder displacement transducer, second displacement data of the monitoring unit head relative to ground；
According to the second displacement data and the difference of first displacement data, the run of steel value is generated.
4. drilling rod monitoring method according to claim 3, it is characterised in that the setting pressurization oil cylinder displacement sensing utensil
Body is：
In the inside of pressurization oil cylinder, magnetostrictive displacement sensor is set.
5. a kind of drilling rod supervising device, it is characterised in that including：
First parameter acquiring unit, for obtaining pulling force Sudden Changing Rate and run of steel value during main hoisting tension value mutation；
Drilling rod determining unit, it is current just in elevated drilling rod for being determined according to the run of steel value；
Judge alarm unit, for when the pulling force Sudden Changing Rate be more than or equal to it is described just elevated drilling rod outer layer bar weight
When, judgement is described currently just to be occurred rod failure in elevated drilling rod and exports alarm signal；
Second parameter acquiring unit, for obtaining run of steel value when shutting down；
Rod failure climb acquiring unit, for according to the run of steel value during main hoisting tension value mutation, and when shutting down
Run of steel value, calculate and described current the rod failure climb risen after rod failure just occur in elevated drilling rod；
Adjustment unit, for lifting pressurization oil cylinder, range of lift is the rod failure climb；
Unlocking unit, for being just unlocked to described in the outer layer bar of elevated drilling rod.
6. drilling rod supervising device according to claim 5, it is characterised in that first parameter acquiring unit and/or
Two parameter acquiring units include：
Main hoisting tension sensor, for monitoring the change of the main hoisting tension value and calculating the pulling force Sudden Changing Rate.
7. drilling rod supervising device according to claim 5, it is characterised in that first parameter acquiring unit and/or
Two parameter acquiring units include：
Master winch steel wire rope displacement transducer, for monitoring first displacement data of the drill bit relative to ground；
Pressurize oil cylinder displacement transducer, for monitoring second displacement data of the unit head relative to ground；
Run of steel value generation unit, for the difference according to the second displacement data and first displacement data, generation
The run of steel value.
8. drilling rod supervising device according to claim 7, it is characterised in that the pressurization oil cylinder displacement transducer includes：
Magnetostrictive displacement sensor inside the pressurization oil cylinder.
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| CN102359366A (en) * | 2011-08-22 | 2012-02-22 | 徐州徐工基础工程机械有限公司 | Rod carrying monitoring system for drill rod of rotary drilling machine |
| CN102383776B (en) * | 2011-09-19 | 2013-01-23 | 中联重科股份有限公司 | Drill rod with rod monitoring method, controller and system of drilling machine and drilling machine |
| CN103527166B (en) * | 2013-09-30 | 2016-05-11 | 北京市三一重机有限公司 | Drilling machine drilling rod monitoring method and system |
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