CN106769396A - A kind of horizontal directional drill drilling rod fatigue damage detecting system - Google Patents
A kind of horizontal directional drill drilling rod fatigue damage detecting system Download PDFInfo
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- CN106769396A CN106769396A CN201710069466.0A CN201710069466A CN106769396A CN 106769396 A CN106769396 A CN 106769396A CN 201710069466 A CN201710069466 A CN 201710069466A CN 106769396 A CN106769396 A CN 106769396A
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- drilling rod
- fatigue damage
- pulling force
- horizontal directional
- detecting system
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- 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
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- 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
- G01N2203/0014—Type of force applied
- G01N2203/0026—Combination of several types of applied 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
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- 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
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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- 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
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0264—Beam
-
- 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
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0617—Electrical or magnetic indicating, recording or sensing means
- G01N2203/0635—Electrical or magnetic indicating, recording or sensing means using magnetic properties
Abstract
The invention provides a kind of horizontal directional drill drilling rod fatigue damage detecting system, including drilling rod rotary motive power system, pulling force loading system, serpentine track control system, torque loading system and Magnetic Memory fatigue damage detecting system, drilling rod track control device is placed on drilling rod in serpentine track control system, the degree of crook of drilling rod can be changed by the precession length of adjusting screw rod, each screw rod precession length is different, to control the serpentine track of drilling rod, real serpentine track during rod boring is closer to；The horizontal directional drill drilling rod fatigue damage detecting system that the present invention is provided is detected for the fatigue damage of full-scale horizontal directional drill drilling rod, can realize using the quantitatively axial tension of control drilling rod, moment of torsion and serpentine track, simulation drilling rod real operating environments, using Magnetic Memory fatigue damage detection technique, the whole process that drilling rod fatigue damage under different operating modes is carried out is monitored, drilling rod damage accumulation process is fully understood by.
Description
Technical field
The present invention relates to a kind of drilling rod fatigue damage detecting system, belong to trenchless engineering technical field.
Background technology
Horizontal directional drilling (Horizontal Directional Drilling) is set using the drilling for being installed on earth's surface
It is standby, stratum is pierced with the small incident relative to ground and forms pilot hole, then by expanding to the required size of pilot hole, and spread
If a technology of pipeline (line).The technology originates from oil drilling industry, and 20 century 70s are industrial and public with reference to well
Technology in terms of Facilities Construction, through the construction industry that municipal pipeline, oil-gas pipeline are now widely used for after differentiation.90 years
In generation, China starts introduction horizontal directional drilling technology carries out pipeline construction construction.Develop rapidly with China's economy, energy demand not
Disconnected to increase, the line size of horizontal directional drill construction is increasing, and disposable crossing length is also more and more long, and horizontal directional drill is bored
Bar stress in hole is complicated, in addition to the effect of pulling force and moment of torsion is received, also suffers from because alternation should caused by spatial shape
Power influences.Complicated stress can cause drilling rod to fail, the accident of drilling rod fatigue fracture, have a strong impact on construction period, increase
Construction cost, in some instances it may even be possible to can cause project failure, this also turns into one of principal element of restriction horizontal directional drilling technology development.
Therefore, it is necessary to carry out fatigue damage detection to the horizontal directional drill drilling rod under specific operation, determine that drilling rod fatigue damage is lost
The critical construction parameter of effect, the major diameter horizontal directional drill that instructs of science is constructed.
The content of the invention
Problem it is an object of the invention to be directed to drilling rod fatigue damage in horizontal directional drill work progress, proposes a kind of energy
The detecting system of the drilling rod fatigue damage under the conditions of enough true simulations drilling rod working environment (pulling force, moment of torsion, bending, rotating speed).
Technical scheme that the object of the invention used is realized for a kind of, horizontal directional drill drilling rod fatigue damage detecting system,
Including drilling rod rotary motive power system, pulling force loading and serpentine track control system, torque loading system and Magnetic Memory fatigue damage
Detecting system, drilling rod rotary motive power system is located at the power side of drilling rod, and pulling force loading and serpentine track control system are located at bores
Bar medium position, torque loading system is located at the two ends of drilling rod；
The drilling rod rotary motive power system includes control electronic box, motor, reduction box, shaft coupling and drilling rod adapter, control
Electronic box processed controls motor speed of gyration, the rotating speed of motor output to be transferred to drilling rod adapter after slowing down through reduction box；
The pulling force loading and serpentine track control system include drill steel support case, drilling rod bearing device, pulling force top board, wedge
Shape cushion block, thrust bearing, two or more jacking oil cylinder and more than 2 brills being distributed on drill steel support case along drilling rod axially spaced-apart
Bar track control device, the main body of drilling rod stretches out drilling rod branch through drill steel support case and each drilling rod track control device, two ends
Outside support case, the power end of drilling rod passes through the correcting wedge, thrust bearing and drilling rod bearing device and the pulling force that are mounted thereon successively
Top board is connected, and correcting wedge, thrust bearing and the drilling rod bearing device that the other end passes through to install successively are spacing, and each jacking oil cylinder is equal
Between the power end of pulling force top board and drill steel support case and it is symmetrically distributed in drilling rod power end side, the effect of jacking oil cylinder
In pulling force top board, the drilling rod track control device is made up of screw rod, transfer gear, sheath body and 3 with upper block, screw rod, transfer
Device and sheath body are linked in sequence from top to bottom, and screw rod axially and with drill steel support case is threadedly coupled perpendicular to drilling rod, and sheath body is placed on
On drilling rod, each guide wheel is uniformly installed on sheath body inside and is contacted with the cylindrical side of drilling rod；
The torque loading system includes electrical control hydraulic pump, moment of torsion load cylinder, torque loading device, gear-box, clutch
Device and straight-line displacement mechanism, electrical control hydraulic pump, moment of torsion load cylinder and torque loading device are respectively positioned on the power end of drilling rod, moment of torsion
Load cylinder is located at the lower section of torque loading device, and its one end is connected with the bottom of torque loading device side, moment of torsion loading dress
Internal setting pitch wheel group is put, the rotating speed of motor output is transferred to drilling rod and moves through reduction box and torque loading device
The drilling rod adapter at power end, gear-box and clutch are mounted in the moving element of straight-line displacement mechanism and positioned at drilling rod
Tail end, the drilling rod adapter of drilling rod tail end accesses gear-box by shaft coupling；
The Magnetic Memory fatigue damage detecting system includes ring dress probe and Magnetic Memory Acquisition Instrument, and ring dress probe is by retainer ring
Constituted with more than 4 probes, on drilling rod, each probe is spaced and is evenly mounted in retainer ring and and drilling rod Fixing shrink ring
Cylindrical side contact, probe with Magnetic Memory Acquisition Instrument be electrically connected with.
The drill steel support case is linked in sequence by bolt with upper box by 1 and is constituted.
Viewing hole can be provided with the top surface of casing, left surface and right flank.
2 pairs of guide rods are symmetrically installed with pulling force top board, guide rod is perpendicular to pulling force top board and its movable end stretches into close moving
In the guide hole opened up on the casing at power end.
Rotary speed torque sensor is installed on connection torque loading device and the power transmission shaft of drilling rod power end drilling rod adapter.
The straight-line displacement mechanism is guide rail leading screw, and gear-box and clutch are mounted in the mobile station of guide rail leading screw,
The power intake of leading screw is provided with rocking handle in guide rail leading screw.
The drilling rod adapter is provided with four, and for connecting two drilling rods, the moment of torsion of torque loading device output is made simultaneously
For master drilling rod and with sidetracking bar, each drilling rod track control device is spaced apart on master drilling rod, and pulling force loading system is made
For the power end of master drilling rod.
Described is universal drive shaft with side power transmission shaft.
Four drilling rod adapters are connected by bent gear coupling with corresponding power transmission shaft.
Drilling rod rotary motive power system and torque loading system are mounted on testing stand, and pulling force loading and serpentine track are controlled
System is supported by support block, and drilling rod rotary motive power system, torque loading system and pulling force are loaded and serpentine track control system
On same level height.
As shown from the above technical solution, the horizontal directional drill drilling rod fatigue damage detecting system that the present invention is provided, including bore
Bar rotary motive power system, pulling force loading and serpentine track control system, torque loading system and Magnetic Memory fatigue damage detection system
System, controls electronic box control motor speed of gyration, after slowing down through reductor, by intermediate propeller shaft in drilling rod rotary motive power system
Speed of gyration is passed into drilling rod adapter, drilling rod adapter jointed rod, so as to realize the control of speed of gyration, simulates drilling rod
Drilling, drilling rod adapter passes through bent gear coupling and is connected with corresponding power transmission shaft, and bent gear coupling permission drilling rod has on axis
Certain stroke, while the deflection of certain angle can be realized；In pulling force loading and serpentine track control system, by wedge shape
Cushion block, thrust bearing and drilling rod bearing device assemble drilling rod and pulling force top board and drill steel support case, and drill pipe body is passed through
Pulling force top board and drill steel support case and spacing by drilling rod bearing device, two jacking oil cylinders are located at pulling force top board with bending rail
Between mark control system, when the piston of jacking oil cylinder stretches out, pulling force is transferred to by drilling rod by pulling force top board, simulates receiving for drilling rod
Operating mode is drawn, guide rod is symmetrically installed on pulling force top board, guide rod is stretched into drill steel support case, play the guiding role, it is ensured that the side of tension
To being drill rod axis direction, the Curved of drilling rod is controlled along the drilling rod track control device that drilling rod axially spaced-apart is distributed by multiple
Become, simulate drill pipe buckling operating mode, drilling rod track control device is made up of screw rod, transfer gear, sheath body and 4 guide wheels, and screw rod is vertical
Be threadedly coupled axially and with drill steel support case in drilling rod, transfer gear ensure during screw rod rotation sheath body will not concomitant rotation, pass through
The precession length of adjusting screw rod can change the degree of crook of drilling rod, the different bendings to control drilling rod of each screw rod precession length
Track, is closer to real serpentine track during rod boring, guide wheel supports drill rods, it is ensured that drilling rod is not produced in turning course
The extra friction torque of life；In torque loading system, gear-box is seated in the moving element of straight-line displacement mechanism, and it is in drilling rod
Can be slided on axis, it is ensured that offset the axial stretching amount produced during drilling rod connection is tightened, by moment of torsion load cylinder, turn round
The mutual cooperation of square loading device, gear-box and clutch, drilling rod is screwed with drilling rod adapter, is stably connected with the two, rotation
May be such that drilling rod produces moment of torsion by the mutual cooperation of moment of torsion load cylinder, torque loading device and gear-box after tight, simulation is bored
Operating mode of the bar under moment of torsion effect；Drilling rod can truly be simulated by pulling force, moment of torsion, bending and speed conditions by above-mentioned 3 systems
Under working environment, and the magnetic signal of test drilling rod is detected by Magnetic Memory fatigue damage detecting system on drilling rod,
Drilling rod damage accumulation process can be fully understood by by date comprision.
It is 3m mono- in view of usual small-sized horizontal directional drill drilling rod, large-scale horizontal directional drill drilling rod is 9m mono-, to survey
The fatigue damage of different type Directional Drilling drilling rod is tried, is used in serpentine track control system of the invention and is passed through spiral shell by 3 casings
Bolt is linked in sequence the drill steel support case of composition, various sizes of drilling rod is adapted to by adjusting the quantity of casing, if using small
3 3m small-sized drilling rods long are connected together into 9m for one group by type drilling rod, if using large-scale horizontal directional drill, can be straight
Connect using drilling rod or more joint tests a 9m long, ensure to realize that track is adjusted using the enough drilling rods of length；This
Invention sets two groups of drilling rod fixing devices, and two isometric drilling rods are installed during experiment, and setting the two groups of drilling rods in left and right can be by gear
Case realizes two drilling rod moment of torsion bootstrap loadings.
Compared with prior art, the horizontal directional drill drilling rod fatigue damage detecting system that the present invention is provided has following excellent
Point：
(1) detecting system involved in the present invention is the first detection for full-scale horizontal directional drill drilling rod fatigue damage
System, it is possible to achieve using the quantitatively axial tension of control drilling rod, moment of torsion and serpentine track, simulate drilling rod real operating environments；
(2) during drilling rod is protected in drill steel support case all the time, it is ensured that drilling rod detection process is safe and reliable to be carried out；
(3) present invention can use Magnetic Memory fatigue damage detection technique, and drilling rod fatigue damage under different operating modes is carried out
Whole process be monitored, be fully understood by drilling rod damage accumulation process.
Brief description of the drawings
The top view of the horizontal directional drill drilling rod fatigue damage detecting system that Fig. 1 is provided for the present invention.
The front view of the horizontal directional drill drilling rod fatigue damage detecting system that Fig. 2 is provided for the present invention.
Fig. 3 is the structural representation of pulling force top board.
Fig. 4 is the mounting structure schematic diagram of drill rod end.
Fig. 5 is the structural representation of drilling rod track control device.
Fig. 6 is the schematic diagram of drilling rod moment of torsion loading procedure.
Fig. 7 is the A-A generalized sections of Fig. 2.
Fig. 8 is the B-B generalized sections of Fig. 2.
Fig. 9 is the C-C generalized sections of Fig. 2.
Figure 10 is the D-D generalized sections of Fig. 2.
Figure 11 is the E-E generalized sections of Fig. 2.
Figure 12 is the F-F generalized sections of Fig. 2.
Figure 13 is the mounting structure schematic diagram of Magnetic Memory fatigue damage detecting system.
Figure 14 is the structural representation of ring dress probe.
Wherein, 1- controls electronic box, 2- electrical control hydraulic pumps, 3- torque loading devices, 4- universal drive shafts, 5- transfers with sidetracking bar
Head, 6- with sidetracking bar, 7- power end drill steel support casees, 8- middle parts drill steel support case, 9- tail end drill steel support casees, 10- gear-boxes,
11- clutches, 12- rocking handles, 13- viewing holes, 14- master drilling rods, 15- pulling force top boards, 16- master drilling rod adapters, 17- song teeth
Shaft coupling, 18- shaft couplings, 19- rotary speed torque sensors, 20- testing stands, 21- shaft stools, 22- reduction boxes, 23- motor,
24- jacking oil cylinders, 25- drilling rod bearing devices, 26- guide rods, 27- support blocks, 28- drilling rod track control devices, 281- screw rods,
282- transfer gears, 283- sheath bodies, 284- guide wheels, 29- thrust bearings, 30- correcting wedges, 31- moment of torsion load cylinders, 32- moments of torsion
Loading device is visited with side bottom, 33- guide holes, 34- bolts, 35- straight-line displacements mechanism, 36- leading screws, 37- spacing holes, 38- rings dress
Head, 381- retainer rings, 382- probes, 39- Magnetic Memory Acquisition Instruments.
Specific embodiment
The present invention is illustrated in detail with reference to the accompanying drawings and examples, present disclosure is not limited to following
Embodiment.
Referring to the horizontal directional drill drilling rod fatigue damage detecting system that Fig. 1 and Fig. 2, the present invention are provided, including drilling rod revolution
Dynamical system, pulling force loading and serpentine track control system, torque loading system and Magnetic Memory fatigue damage detecting system, drilling rod
Rotary motive power system is located at the power side of drilling rod, and pulling force loading and serpentine track control system are located at drilling rod medium position, turn round
Square loading system is located at the two ends of drilling rod, and drilling rod rotary motive power system and torque loading system are mounted on testing stand 20, draws
Power is loaded and serpentine track control system is supported by support block 27, drilling rod rotary motive power system, torque loading system and pulling force
Loading and serpentine track control system are located on same level height；
The drilling rod rotary motive power system include control electronic box 1, motor 23, reduction box 22, shaft coupling 18, with sidetracking bar
Adapter 5 and master drilling rod adapter 16, connect with sidetracking bar 6 respectively with sidetracking bar adapter 5 and master drilling rod adapter 16
With master drilling rod 14, referring to Fig. 1, control electronic box control motor speed of gyration, the rotating speed of motor output slows down through reduction box
Afterwards, master drilling rod adapter 16 is transferred to by intermediate propeller shaft and bent gear coupling 17；
The pulling force loading and serpentine track control system include drill steel support case, drilling rod bearing device 25, pulling force top board
15th, correcting wedge 30, the jacking oil cylinder 24 of guide rod 26, two of thrust bearing 29,4 and it is distributed in drilling rod branch along drilling rod axially spaced-apart
More than 2 drilling rod track control devices 28 on support case, the drill steel support case is by power end drill steel support case 7, middle part drilling rod
Support case 8 and tail end drill steel support case 9 are linked in sequence composition by bolt 34 (as shown in Figure 10), the top surface of above-mentioned 3 casings,
Viewing hole 13 can be provided with left surface and right flank, with the main body of sidetracking bar 6 and master drilling rod 14 both pass through drill steel support case,
Two ends are stretched out outside drill steel support case, and power end drill steel support case 7 and the end face of tail end drill steel support case 9 are equal positioned at the part of master
Spacing hole 37 (as shown in figure 12) is opened up, is passed through for master drilling rod 14, power end drill steel support case 7 and tail end drill steel support case 9
It is passage that end face is located at the part of side, be not provided with end plates, and referring to Fig. 3 and Fig. 4, master drilling rod 14 is through pulling force top board and moves
The spacing hole 37 of power end drill steel support case 7, and its power end passes through the correcting wedge 30, thrust bearing that is mounted thereon successively
29 and drilling rod bearing device 25 and pulling force top board 15 be connected, the limit of the other end of master drilling rod 14 through tail end drill steel support case 9
Position hole 37, and it is spacing by correcting wedge 30, thrust bearing 29 and the drilling rod bearing device 25 installed successively；The guide rod 26
Perpendicular to pulling force top board and the corner of pulling force top board 15 is fixed on, referring to Fig. 8, the power end end of power end drill steel support case 7
Offer 4 guide holes 33 on face, the movable end of guide rod 26 is stretched into guide hole 33, and referring to Figure 13, two jacking oil cylinders 24 are located at and draw
Between power top board and power end drill steel support case 7 and it is symmetrically distributed in the both sides up and down of the power end of master drilling rod 14, jacking oil
Cylinder 24 acts on pulling force top board 15, and each drilling rod track control device 28 is set on master drilling rod 14 along drilling rod axially spaced-apart, ginseng
See Fig. 5, the drilling rod track control device 28 is made up of screw rod 281, transfer gear 282, sheath body 283 and 4 guide wheels 284, screw rod
281st, transfer gear 282 and sheath body 283 are linked in sequence from top to bottom, transfer gear ensure screw rod rotate when sheath body will not concomitant rotation,
Screw rod 281 axially and with the drill steel support case at place is threadedly coupled perpendicular to drilling rod, as shown in figure 9, sheath body is used tying up and down
Structure, it is connected by screw by upper and lower two and half arcs shell, sheath body 283 is placed on master drilling rod 14, and each guide wheel is uniformly installed on set
Contact inside shell and with the cylindrical side of master drilling rod 14；
The torque loading system includes electrical control hydraulic pump 2, moment of torsion load cylinder 31, torque loading device 3, gear-box
10th, clutch 11 and straight-line displacement mechanism 35, electrical control hydraulic pump 2, moment of torsion load cylinder 31 and torque loading device 3 are respectively positioned on two
The power end of root drilling rod, referring to Fig. 6 and Fig. 7, moment of torsion load cylinder 31 is located at the lower section of torque loading device 3, its one end and torsion
Square loading device is connected with the bottom 32 of side, and torque loading device inside sets pitch wheel group, realizes master drilling rod
14 and loaded with drilling rod 6 itself moment of torsion is surveyed, torque loading device 3, motor are accessed by universal drive shaft 4 with sidetracking bar adapter 5
The rotating speed of 23 outputs is transferred to be located at the master drilling rod adapter 16 of power end and with side through reduction box 22 and torque loading device 3
The power transmission shaft of drilling rod adapter 5, connection torque loading device 3 and the master drilling rod adapter 16 positioned at the power end of master drilling rod 14
On rotary speed torque sensor 19 is installed, referring to Figure 11, gear-box 10 and clutch are mounted on the shifting of straight-line displacement mechanism 35
On dynamic element and positioned at two tail ends of drilling rod, the straight-line displacement mechanism is guide rail leading screw, and gear-box and clutch are pacified
In mobile station loaded on guide rail leading screw, the power intake of leading screw 36 is provided with rocking handle 12, two drilling rod tail ends in guide rail leading screw
Drilling rod adapter the drilling rod adapter of gear-box, power end is accessed by bent gear coupling 17 by bent gear coupling 17
Connected with corresponding power transmission shaft；
Referring to Figure 13, the Magnetic Memory fatigue damage detecting system includes ring dress probe 38 and Magnetic Memory Acquisition Instrument 39, such as
Shown in Figure 14, ring is filled to pop one's head in and is made up of retainer ring 381 and 8 probes 382, and on drilling rod, each probe is spaced and equal Fixing shrink ring
It is installed on evenly in retainer ring and is contacted with the cylindrical side of drilling rod, each probe is electrically connected with Magnetic Memory Acquisition Instrument.
The use step of the horizontal directional drill drilling rod fatigue damage detecting system that the present invention is provided is as follows：
(1) as depicted in figs. 1 and 2, support block 27 is determined according to the length with sidetracking bar 6 and master drilling rod 14 first
Position, installs and fixes；
(2) as shown in figure 4, by the first segment of master drilling rod 14 and correcting wedge 30, thrust bearing 29, drilling rod bearing device 25
Assemble, and through pulling force top board 15 (as depicted in figs. 1 and 2).As shown in figures 3 and 8, guide rod 26 is placed through power
The guide hole 33 on drill steel support case 7 is held, and connects pulling force top board 15 and moment of torsion load cylinder 31.As shown in figure 4, by master drilling rod
The section of 14 end one is assembled with correcting wedge 30, thrust bearing 29, drilling rod bearing device 25, and through tail end drill steel support case
9 (Figure 12).Through middle part drill steel support case 8 after some section connections in the middle of master drilling rod 14, according to the whole of experiment master drilling rod 14
Body length, the quantity of appropriate selection middle part drill steel support case 8.Then by the interlude of master drilling rod 14 it is some section respectively with first segment
With the preliminary connection of end section, and by bolt by power end drill steel support case 7, middle part drill steel support case 8, tail end drill steel support case
9 connections.As shown in figs. 5 and 9, drilling rod track control device 28 is opened, master drilling rod 14 is placed in into symmetrical 4 leads
The centre of wheel 284 simultaneously closes drilling rod track control device 28.Bored as shown in figure 1, will respectively be saved with sidetracking bar 6 and be connected and through power end
Bar support case 7, middle part drill steel support case 8, tail end drill steel support case 9.
(3) as shown in fig. 6, moment of torsion load cylinder 31 is in no load state, will be with sidetracking bar 6 and the two ends of master drilling rod 14
Drill rod connector tentatively be connected with 4 bent gear couplings 17 respectively, control straight-line displacement mechanism 35, will install in connection procedure
Balanced out with the axial stretching amount produced during sidetracking bar 6 and master drilling rod 14.
(4) as shown in figure 1, keeping clutch 11 to open, moment of torsion load cylinder 31 is adjusted to minimum point (as shown in Figure 7).
(5) close clutch 11, and is increased to peak (such as Fig. 6 by the control mode load cylinder 31 of electrical control hydraulic pump 2
It is shown).
(6) clutch 11 is opened, minimum point is reduced to by the control mode load cylinder 31 of electrical control hydraulic pump 2.
(7) repeat step (5) and step (6), until being tightened with sidetracking bar 6 and master drilling rod 14.Along the table of master drilling rod 14
A datum line is drawn in face, and by Magnetic Memory fatigue damage detecting system along the data of datum line record master drilling rod 14.
(8) jacking oil cylinder 24 is closed, by the length of 28 adjusting screw rod of drilling rod track control device 281, master drilling rod is controlled
14 serpentine track parameters.
(9) close clutch 11, and is raised by the control mode load cylinder 31 of electrical control hydraulic pump 2, observes rotating speed moment of torsion
Sensor 19, when moment of torsion reaches test value, closing torque load cylinder 31 keeps constant torque.
(10) regulation jacking oil cylinder 24 controls jacking power to reach test value, closes jacking oil cylinder 24, keeps master drilling rod 14
Tensions constant.
(11) rotating speed of motor 3 is controlled by controlling electronic box 1, observes the display of rotary speed torque sensor 19, work as rotating speed
When reaching test value, equipment operation is kept.
(12) when master drilling rod 14 reaches the testing time in certain pulling force, moment of torsion, rotating speed, bending work, stop setting
It is standby.
(13) then regulation moment of torsion load cylinder 31 opens clutch 11 to minimum point, and drilling rod track control device 28 is adjusted
Original position is saved go back to, jacking oil cylinder 24 is unloaded.Master drilling rod 14 is recorded by Magnetic Memory fatigue damage detecting system along datum line to count
According to.
(14), to step (13), the Magnetic Memory of master drilling rod 14 is tired under record different operating Parameter Conditions for repeat step (8)
The data of damage, are analyzed.
Claims (10)
1. a kind of horizontal directional drill drilling rod fatigue damage detecting system, it is characterised in that：Including drilling rod rotary motive power system, pulling force
Loading and serpentine track control system, torque loading system and Magnetic Memory fatigue damage detecting system, drilling rod rotary motive power system
Positioned at the power side of drilling rod, pulling force loading and serpentine track control system are located at drilling rod medium position, torque loading system position
In the two ends of drilling rod；
The drilling rod rotary motive power system includes control electronic box, motor, reduction box, shaft coupling and drilling rod adapter, control electricity
Case controls motor speed of gyration, the rotating speed of motor output to be transferred to drilling rod adapter after slowing down through reduction box；
The pulling force loading and serpentine track control system include drill steel support case, drilling rod bearing device, pulling force top board, wedge piece
Block, thrust bearing, two or more jacking oil cylinder and more than 2 drilling rod rails being distributed on drill steel support case along drilling rod axially spaced-apart
Mark control device, the main body of drilling rod stretches out drill steel support case through drill steel support case and each drilling rod track control device, two ends
Outward, the power end of drilling rod passes through correcting wedge, thrust bearing and the drilling rod bearing device and pulling force top board being mounted thereon successively
It is connected, correcting wedge, thrust bearing and the drilling rod bearing device that the other end passes through to install successively are spacing, and each jacking oil cylinder is respectively positioned on
Between the power end of pulling force top board and drill steel support case and drilling rod power end side is symmetrically distributed in, jacking oil cylinder acts on drawing
Power top board, the drilling rod track control device is made up of screw rod, transfer gear, sheath body and 3 with upper block, screw rod, transfer gear and
Sheath body is linked in sequence from top to bottom, and screw rod axially and with drill steel support case is threadedly coupled perpendicular to drilling rod, and sheath body is placed on drilling rod
On, each guide wheel is uniformly installed on sheath body inside and is contacted with the cylindrical side of drilling rod；
The torque loading system include electrical control hydraulic pump, moment of torsion load cylinder, torque loading device, gear-box, clutch and
Straight-line displacement mechanism, electrical control hydraulic pump, moment of torsion load cylinder and torque loading device are respectively positioned on the power end of drilling rod, moment of torsion loading
Oil cylinder is located at the lower section of torque loading device, and its one end is connected with the bottom of torque loading device side, in torque loading device
Portion sets pitch wheel group, and the rotating speed of motor output is transferred to drilling rod power end through reduction box and torque loading device
Drilling rod adapter, gear-box and clutch are mounted in the moving element of straight-line displacement mechanism and positioned at the tail of drilling rod
End, the drilling rod adapter of drilling rod tail end accesses gear-box by shaft coupling；
The Magnetic Memory fatigue damage detecting system includes ring dress probe and Magnetic Memory Acquisition Instrument, and ring dress probe is by retainer ring and 4
Probe is constituted more than individual, Fixing shrink ring on drilling rod, each probe interval and be evenly mounted in retainer ring and with drilling rod
Cylindrical side is contacted, and probe is electrically connected with Magnetic Memory Acquisition Instrument.
2. horizontal directional drill drilling rod fatigue damage detecting system according to claim 1, it is characterised in that：The drilling rod branch
Support case is linked in sequence by bolt with upper box by 1 and is constituted.
3. horizontal directional drill drilling rod fatigue damage detecting system according to claim 2, it is characterised in that：The top of casing
Viewing hole can be provided with face, left surface and right flank.
4. horizontal directional drill drilling rod fatigue damage detecting system according to claim 2, it is characterised in that：On pulling force top board
2 pairs of guide rods are symmetrically installed with, guide rod is perpendicular to pulling force top board and its movable end stretches into what is opened up on the casing of power end
In guide hole.
5. horizontal directional drill drilling rod fatigue damage detecting system according to claim 1, it is characterised in that：Connection moment of torsion adds
Carry and rotary speed torque sensor is installed on the power transmission shaft for putting with drilling rod power end drilling rod adapter.
6. horizontal directional drill drilling rod fatigue damage detecting system according to claim 1, it is characterised in that：The straight line position
Telephone-moving structure is guide rail leading screw, and gear-box and clutch are mounted in the mobile station of guide rail leading screw, and leading screw is dynamic in guide rail leading screw
Power input is provided with rocking handle.
7. horizontal directional drill drilling rod fatigue damage detecting system according to any one of claim 1 to 6, its feature exists
In：The drilling rod adapter is provided with four, and for connecting two drilling rods, the moment of torsion of torque loading device output acts on master simultaneously
Sidetracking bar and with sidetracking bar, each drilling rod track control device is spaced apart on master drilling rod, and pulling force loading system acts on master
The power end of sidetracking bar.
8. horizontal directional drill drilling rod fatigue damage detecting system according to claim 7, it is characterised in that：It is described to be passed with side
Moving axis is universal drive shaft.
9. horizontal directional drill drilling rod fatigue damage detecting system according to claim 7, it is characterised in that：Four drilling rods turn
Joint is connected by bent gear coupling with corresponding power transmission shaft.
10. horizontal directional drill drilling rod fatigue damage detecting system according to claim 1, it is characterised in that：Drilling rod is turned round
Dynamical system and torque loading system are mounted on testing stand, and pulling force loading and serpentine track control system are by support block branch
Support, the loading of drilling rod rotary motive power system, torque loading system and pulling force and serpentine track control system are located at same level highly
On.
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| CN108956118A (en) * | 2018-07-19 | 2018-12-07 | 大连海事大学 | A kind of testing stand being able to achieve no-dig technique directional drilling parameter detecting |
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| CN111159940A (en) * | 2019-12-25 | 2020-05-15 | 中国石油天然气集团有限公司 | Fatigue life analysis method for drill rod of horizontal directional drill |
| CN113216938A (en) * | 2021-06-23 | 2021-08-06 | 中煤科工集团重庆研究院有限公司 | Dynamic comprehensive performance testing device for coal mine drill rod |
| CN113216937A (en) * | 2021-06-23 | 2021-08-06 | 中煤科工集团重庆研究院有限公司 | Dynamic comprehensive performance test method and device for coal mine drill rod |
| CN114061991A (en) * | 2020-08-04 | 2022-02-18 | 中国石油化工股份有限公司 | Apparatus for testing clutch orientation device |
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| CN108956118A (en) * | 2018-07-19 | 2018-12-07 | 大连海事大学 | A kind of testing stand being able to achieve no-dig technique directional drilling parameter detecting |
| CN109113709A (en) * | 2018-10-19 | 2019-01-01 | 中国石油大学(北京) | It is installed on the drill string damage well head on-Line Monitor Device for boring disk |
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| CN113216938A (en) * | 2021-06-23 | 2021-08-06 | 中煤科工集团重庆研究院有限公司 | Dynamic comprehensive performance testing device for coal mine drill rod |
| CN113216937A (en) * | 2021-06-23 | 2021-08-06 | 中煤科工集团重庆研究院有限公司 | Dynamic comprehensive performance test method and device for coal mine drill rod |
| CN113216938B (en) * | 2021-06-23 | 2022-05-13 | 中煤科工集团重庆研究院有限公司 | Dynamic comprehensive performance testing device for coal mine drill rod |
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