CN106769396B - A kind of horizontal directional drill drilling rod fatigue damage detection system - Google Patents
A kind of horizontal directional drill drilling rod fatigue damage detection system Download PDFInfo
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- CN106769396B CN106769396B CN201710069466.0A CN201710069466A CN106769396B CN 106769396 B CN106769396 B CN 106769396B CN 201710069466 A CN201710069466 A CN 201710069466A CN 106769396 B CN106769396 B CN 106769396B
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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
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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
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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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
- G01N2203/0058—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
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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
- G01N2203/06—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
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Abstract
The present invention provides a kind of horizontal directional drill drilling rod fatigue damage detection systems, including drilling rod rotary motive power system, pulling force loading system, serpentine track control system, torque loading system and Magnetic Memory fatigue damage detection system, drilling rod track control device is placed on drilling rod in serpentine track control system, the bending degree of drilling rod can be changed by the precession length of adjusting screw rod, each screw rod precession length is different, the serpentine track of drilling rod is controlled, is closer to true serpentine track when rod boring；Horizontal directional drill drilling rod fatigue damage detection system provided by the invention is detected for the fatigue damage of full-scale horizontal directional drill drilling rod, axial tension, torque and the serpentine track using quantitative control drilling rod may be implemented, simulation drilling rod real operating environments, using Magnetic Memory fatigue damage detection technique, the whole process carried out to drilling rod fatigue damage under different operating conditions is monitored, and fully understands drilling rod damage accumulation process.
Description
Technical field
The present invention relates to a kind of drilling rod fatigue damage detection systems, belong to trenchless engineering technical field.
Background technique
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 is spread
If a technology of pipeline (line).The technique functions are derived from oil drilling industry, in the 1970s, in conjunction with well industry and public
Technology in terms of Facilities Construction is now widely used for the construction industry of municipal pipeline, oil-gas pipeline after developing.90 years
Generation, China start to introduce horizontal directional drilling technology progress pipeline construction construction.Not with the rapid development of China's economy, energy demand
Disconnected to increase, the line size of horizontal directional drill construction is increasing, and disposable crossing length is also increasingly longer, and horizontal directional drill bores
Bar stress in hole is complicated, and in addition to receiving the effect of pulling force and torque, alternation is answered caused by also suffering from because of spatial shape
Power influences.Complicated stress will lead to the accident of drilling rod failure, drilling rod fatigue fracture, seriously affect construction period, increase
Construction cost, in some instances it may even be possible to will lead to project failure, this also becomes one of the principal element for restricting horizontal directional drilling technology development.
Therefore, it is necessary to which the carry out fatigue damage detection to the horizontal directional drill drilling rod under specific operation, determines that drilling rod fatigue damage is lost
The critical construction parameter of effect, scientific instructs major diameter horizontal directional drill to construct.
Summary of the invention
It is an object of the invention to propose a kind of energy aiming at the problem that drilling rod fatigue damage in horizontal directional drill work progress
The detection system of drilling rod fatigue damage under the conditions of enough real simulation drilling rod working environment (pulling force, torque, bending, revolving speed).
Realize that technical solution used by the object of the invention is a kind of horizontal directional drill drilling rod fatigue damage detection system,
Including drilling rod rotary motive power system, pulling force load and serpentine track control system, torque loading system and Magnetic Memory fatigue damage
Detection system, drilling rod rotary motive power system are located at the power end side of drilling rod, and pulling force load and serpentine track control system, which are located at, bores
Bar medium position, torque loading system are located at the both ends of drilling rod；
The drilling rod rotary motive power system includes control electronic box, motor, reduction gearbox, shaft coupling and drilling rod adapter, control
Electronic box processed controls motor rotational speed, and the revolving speed of motor output is transferred to drilling rod adapter after reduction gearbox slows down；
The pulling force load and serpentine track control system include drill steel support case, drilling rod bearing device, pulling force top plate, wedge
Shape cushion block, thrust bearing, more than two jacking oil cylinder and be distributed on drill steel support case along drilling rod axially spaced-apart 2 or more bore
The main body of bar track control device, drilling rod passes through drill steel support case and drilling rod branch is stretched out at each drilling rod track control device, both ends
It supports outside case, the power end of drilling rod passes through correcting wedge, thrust bearing and the drilling rod bearing device and pulling force that are successively mounted thereon
Top plate is connected, and the other end passes through correcting wedge, thrust bearing and drilling rod the bearing device limit successively installed, and each jacking oil cylinder is equal
Between pulling force top plate and the power end of 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 plate, the drilling rod track control device is made 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 is axial perpendicular to drilling rod and is threadedly coupled with drill steel support case, and sheath body is placed on
On drilling rod, each guide wheel is uniformly installed on inside sheath body and contacts with the cylindrical side of drilling rod；
The torque loading system includes electrical control hydraulic pump, torque load cylinder, torque loading device, gear-box, clutch
Device and straight-line displacement mechanism, electrical control hydraulic pump, torque load cylinder and torque loading device are respectively positioned on the power end of drilling rod, torque
Load cylinder is located at the lower section of torque loading device, and one end and the bottom of torque loading device side are connected, torque load dress
Internal setting pitch wheel group is set, the revolving speed of motor output is transferred to drilling rod through reduction gearbox and torque loading device and moves
The drilling rod adapter at power end, gear-box and clutch are mounted in the moving element of straight-line displacement mechanism and are located at drilling rod
The drilling rod adapter of tail end, drilling rod tail end accesses gear-box by shaft coupling；
The Magnetic Memory fatigue damage detection system includes ring dress probe and Magnetic Memory Acquisition Instrument, and ring dress probe is by fixed ring
It is constituted with 4 or more probes, Fixing shrink ring each probe interval and is evenly mounted in fixed ring and and drilling rod on drilling rod
Cylindrical side contact, probe with Magnetic Memory Acquisition Instrument be electrically connected.
The drill steel support case is made up of with upper box bolt sequential connection by 1.
Viewing hole can be equipped on the top surface of cabinet, left side and right side.
2 pairs of guide rods are symmetrically installed on pulling force top plate, guide rod is perpendicular to pulling force top plate and its movable end is protruded into close to dynamic
In the guide hole opened up on the cabinet at power end.
Rotary speed torque sensor is installed on the transmission shaft of connection torque loading device and drilling rod power end drilling rod adapter.
The straight-line displacement mechanism is guide rail lead screw, and gear-box and clutch are mounted in the mobile station of guide rail lead screw,
The power intake of lead screw is equipped with rocking handle in guide rail lead screw.
There are four the drilling rod adapter is set, for connecting two drilling rods, the torque of torque loading device output is made simultaneously
For main side drilling rod and with sidetracking bar, each drilling rod track control device is spaced apart on the drilling rod of main side, and pulling force loading system is made
Power end for main side drilling rod.
It is described with side transmission shaft be universal shaft.
Four drilling rod adapters pass through bent gear coupling and corresponding transmission axis connection.
Drilling rod rotary motive power system and torque loading system are mounted on testing stand, pulling force load and serpentine track control
System is supported by supporting block, drilling rod rotary motive power system, torque loading system and pulling force load and serpentine track control system
In same level height.
As shown from the above technical solution, horizontal directional drill drilling rod fatigue damage detection system provided by the invention, including bore
Bar rotary motive power system, pulling force load and serpentine track control system, torque loading system and Magnetic Memory fatigue damage detection system
It unites, control electronic box control motor rotational speed passes through intermediate propeller shaft after speed reducer slows down in drilling rod rotary motive power system
Rotational speed is passed into drilling rod adapter, drilling rod adapter jointed rod, to realize the control of rotational speed, simulation drilling rod
Drilling, drilling rod adapter pass through bent gear coupling and corresponding transmission axis connection, and bent gear coupling allows drilling rod to have on axis
Certain stroke, while the deflection of certain angle may be implemented；In pulling force load and serpentine track control system, pass through wedge shape
Cushion block, thrust bearing and drilling rod bearing device assemble drilling rod and pulling force top plate and drill steel support case, and drill pipe body passes through
It pulling force top plate and drill steel support case and is limited by drilling rod bearing device, two jacking oil cylinders are located at pulling force top plate and 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 plate, simulation drilling rod by
Operating condition is drawn, is symmetrically installed guide rod on pulling force top plate, guide rod is protruded into drill steel support case, play the guiding role, and guarantees the side of tensile stress
To the Curved for for drill rod axis direction, passing through multiple drilling rod track control devices along the distribution of drilling rod axially spaced-apart and controlling drilling rods
Become, simulation drilling rod is bent operating condition, and drilling rod track control device is made of screw rod, transfer gear, sheath body and 4 guide wheels, and screw rod is vertical
It is threadedly coupled in drilling rod axial direction and with drill steel support case, transfer gear ensures that sheath body will not rotate with it when screw rod rotation, pass through
The bending degree of drilling rod can be changed in the precession length of adjusting screw rod, and each screw rod precession length is different, to control the bending of drilling rod
Track is closer to true serpentine track when rod boring, guide wheel supports drill rods, it is ensured that drilling rod does not produce in turning course
Raw additional friction torque；In torque loading system, gear-box is located in the moving element of straight-line displacement mechanism, in drilling rod
It can be slided on axis, it is ensured that offset the axial stretching amount generated during drilling rod connection tightens, by torque load cylinder, turn round
The mutual cooperation of square loading device, gear-box and clutch screws drilling rod and drilling rod adapter, is stably connected with the two, revolves
Next mutual cooperation by torque load cylinder, torque loading device and gear-box may make drilling rod to generate torque, and simulation is bored
Operating condition of the bar under torque effect；By above-mentioned 3 systems can real simulation drilling rod by pulling force, torque, bending and speed conditions
Under working environment, and the Magnetic Memory fatigue damage detection system by being mounted on drilling rod detection test drilling rod magnetic signal,
Drilling rod damage accumulation process can be fully understood by date comprision.
In view of usual small-sized horizontal directional drill drilling rod is 3m mono-, 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 passes through spiral shell by 3 cabinets
The drill steel support case that bolt sequential connection is constituted, by the quantity of adjusting cabinet to adapt to various sizes of drilling rod, if using small
Type drilling rod, it is one group that the small-sized drilling rod of 3 3m long, which is connected together into 9m, if using large-scale horizontal directional drill, it can be straight
The drilling rod or more root joint tests using a 9m long are connect, guarantees to realize that track is adjusted using the enough drilling rods of length；This
Invention two groups of brill lever fixing apparatus of setting, two isometric drilling rods are installed when test, and the two groups of drilling rods in setting left and right can pass through gear
Case realizes two drilling rod torque bootstrap loadings.
Compared with prior art, horizontal directional drill drilling rod fatigue damage detection system provided by the invention has following excellent
Point:
(1) detection system according to the present invention is the first detection for full-scale horizontal directional drill drilling rod fatigue damage
Axial tension, torque and serpentine track using quantitative control drilling rod, simulation drilling rod real operating environments may be implemented in system；
(2) drilling rod is in always in the protection of drill steel support case, it is ensured that drilling rod detection process securely and reliably carries out；
(3) present invention can use Magnetic Memory fatigue damage detection technique, carry out to drilling rod fatigue damage under different operating conditions
Whole process be monitored, fully understand drilling rod damage accumulation process.
Detailed description of the invention
Fig. 1 is the top view of horizontal directional drill drilling rod fatigue damage detection system provided by the invention.
Fig. 2 is the main view of horizontal directional drill drilling rod fatigue damage detection system provided by the invention.
Fig. 3 is the structural schematic diagram of pulling force top plate.
Fig. 4 is the mounting structure schematic diagram of drill rod end.
Fig. 5 is the structural schematic diagram of drilling rod track control device.
Fig. 6 is the schematic diagram of drilling rod torque loading procedure.
Fig. 7 is the A-A diagrammatic cross-section of Fig. 2.
Fig. 8 is the B-B diagrammatic cross-section of Fig. 2.
Fig. 9 is the C-C diagrammatic cross-section of Fig. 2.
Figure 10 is the D-D diagrammatic cross-section of Fig. 2.
Figure 11 is the E-E diagrammatic cross-section of Fig. 2.
Figure 12 is the F-F diagrammatic cross-section of Fig. 2.
Figure 13 is the mounting structure schematic diagram of Magnetic Memory fatigue damage detection system.
Figure 14 is the structural schematic diagram of ring dress probe.
Wherein, 1- controls electronic box, and 2- electrical control hydraulic pump, 3- torque loading device, 4- universal shaft, 5- is with the switching of sidetracking bar
Head, 6- is with sidetracking bar, 7- power end drill steel support case, drill steel support case in the middle part of 8-, 9- tail end drill steel support case, 10- gear-box,
11- clutch, 12- rocking handle, 13- viewing hole, the main side 14- drilling rod, 15- pulling force top plate, the main side 16- drilling rod adapter, 17- song tooth
Shaft coupling, 18- shaft coupling, 19- rotary speed torque sensor, 20- testing stand, 21- shaft stool, 22- reduction gearbox, 23- motor,
24- jacking oil cylinder, 25- drilling rod bearing device, 26- guide rod, 27- supporting block, 28- drilling rod track control device, 281- screw rod,
282- transfer gear, 283- sheath body, 284- guide wheel, 29- thrust bearing, 30- correcting wedge, 31- torque load cylinder, 32- torque
Loading device is visited with side bottom, 33- guide hole, 34- bolt, 35- straight-line displacement mechanism, 36- lead screw, 37- limit hole, 38- ring dress
Head, 381- fixed ring, 382- probe, 39- Magnetic Memory Acquisition Instrument.
Specific embodiment
The present invention is illustrated in detail with reference to the accompanying drawings and examples, the contents of the present invention are not limited to following
Embodiment.
Referring to Fig. 1 and Fig. 2, horizontal directional drill drilling rod fatigue damage detection system provided by the invention, including drilling rod revolution
Dynamical system, pulling force load and serpentine track control system, torque loading system and Magnetic Memory fatigue damage detection system, drilling rod
Rotary motive power system is located at the power end side of drilling rod, and pulling force load and serpentine track control system are located at drilling rod medium position, turn round
Square loading system is located at the both ends of drilling rod, and drilling rod rotary motive power system and torque loading system are mounted on testing stand 20, draws
Power load and serpentine track control system are supported by supporting block 27, drilling rod rotary motive power system, torque loading system and pulling force
Load and serpentine track control system are located in same level height；
The drilling rod rotary motive power system include control electronic box 1, motor 23, reduction gearbox 22, shaft coupling 18, with sidetracking bar
Adapter 5 and main side drilling rod adapter 16, are separately connected with sidetracking bar adapter 5 and main side drilling rod adapter 16 with sidetracking bar 6
It controls electronic box referring to Fig. 1 with main side drilling rod 14 and controls motor rotational speed, the revolving speed of motor output slows down through reduction gearbox
Afterwards, main side drilling rod adapter 16 is transferred to by intermediate propeller shaft and bent gear coupling 17；
The pulling force load and serpentine track control system include drill steel support case, drilling rod bearing device 25, pulling force top plate
15, correcting wedge 30, the jacking oil cylinder 24 of guide rod 26, two of thrust bearing 29,4 and drilling rod branch is distributed in along drilling rod axially spaced-apart
2 or more drilling rod track control devices 28 on case are supportted, the drill steel support case is by power end drill steel support case 7, middle part drilling rod
Case 8 and tail end drill steel support case 9 is supported to be made up of the sequential connection (as shown in Figure 10) of bolt 34, the top surface of above-mentioned 3 cabinets,
On left side and right side can be equipped with viewing hole 13, with the main body of sidetracking bar 6 and main side drilling rod 14 both pass through drill steel support case,
Both ends are stretched out outside drill steel support case, and the part that power end drill steel support case 7 and 9 end face of tail end drill steel support case are located at main side is equal
Limit hole 37 (as shown in figure 12) is opened up, is passed through for main side drilling rod 14, power end drill steel support case 7 and tail end drill steel support case 9
It is channel, not set end plates that end face, which is located at the part of side, and referring to Fig. 3 and Fig. 4, main side drilling rod 14 passes through pulling force top plate and moves
The limit hole 37 of power end drill steel support case 7, and its power end passes through correcting wedge 30, the thrust bearing being successively mounted thereon
29 and drilling rod bearing device 25 and pulling force top plate 15 be connected, the other end of main side drilling rod 14 passes through the limit of tail end drill steel support case 9
Position hole 37, and correcting wedge 30, thrust bearing 29 and drilling rod bearing device 25 by successively installing limit；The guide rod 26
Perpendicular to pulling force top plate and it is fixed on the quadrangle of pulling force top plate 15, referring to Fig. 8, the power end end of power end drill steel support case 7
4 guide holes 33 are offered on face, the movable end of guide rod 26 protrudes into guide hole 33, and referring to Figure 13, two jacking oil cylinders 24, which are located at, to be drawn
Between power top plate and power end drill steel support case 7 and it is symmetrically distributed in the two sides up and down of 14 power end of main side drilling rod, jacking oil
Cylinder 24 acts on pulling force top plate 15, and each drilling rod track control device 28 is set on main side drilling rod 14 along drilling rod axially spaced-apart, ginseng
See that Fig. 5, the drilling rod track control device 28 are made of screw rod 281, transfer gear 282, sheath body 283 and 4 guide wheel 284, screw rod
281, transfer gear 282 and sheath body 283 are linked in sequence from top to bottom, and transfer gear ensures that sheath body will not rotate with it when screw rod rotation,
Screw rod 281 is axial perpendicular to drilling rod and is threadedly coupled with the drill steel support case at place, as shown in figure 9, sheath body is using knot up and down
Structure is connected by screw to by upper and lower two and half arcs shell, and sheath body 283 is placed on main side drilling rod 14, and each guide wheel is uniformly installed on set
It is contacted inside shell and with the cylindrical side of main side drilling rod 14；
The torque loading system includes electrical control hydraulic pump 2, torque load cylinder 31, torque loading device 3, gear-box
10, clutch 11 and straight-line displacement mechanism 35, electrical control hydraulic pump 2, torque 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, torque load cylinder 31 is located at the lower section of torque loading device 3, one end and torsion
Square loading device is connected with the bottom 32 of side, and pitch wheel group is arranged inside torque loading device, realizes main side drilling rod
14 and with survey itself torque of drilling rod 6 load, with sidetracking bar adapter 5 by universal shaft 4 access torque loading device 3, motor
The revolving speed of 23 outputs is transferred to through reduction gearbox 22 and torque loading device 3 positioned at the main side drilling rod adapter 16 of power end and with side
Drilling rod adapter 5, the transmission shaft of connection torque loading device 3 and the main side drilling rod adapter 16 for being located at 14 power end of main side drilling rod
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 the tail end of two drilling rods, the straight-line displacement mechanism is guide rail lead screw, and gear-box and clutch are pacified
In mobile station loaded on guide rail lead screw, the power intake of lead screw 36 is equipped with rocking handle 12, two drilling rod tail ends in guide rail lead screw
Drilling rod adapter pass through that bent gear coupling 17 accesses gear-box, the drilling rod adapter of power end passes through bent gear coupling 17
With corresponding transmission axis connection；
Referring to Figure 13, the Magnetic Memory fatigue damage detection system includes that ring fills probe 38 and Magnetic Memory Acquisition Instrument 39, such as
Shown in Figure 14, ring dress probe 382 is made of fixed ring 381 and 8 probe, and Fixing shrink ring is on drilling rod, each probe interval and
It is installed in fixed ring and is contacted with the cylindrical side of drilling rod evenly, each probe is electrically connected with Magnetic Memory Acquisition Instrument.
Steps are as follows for the use of horizontal directional drill drilling rod fatigue damage detection system provided by the invention:
(1) as depicted in figs. 1 and 2, supporting block 27 is determined according to the length with sidetracking bar 6 and main side drilling rod 14 first
Position, installation are fixed；
(2) as shown in figure 4, by 14 first segment of main side drilling rod and correcting wedge 30, thrust bearing 29, drilling rod bearing device 25
It assembles, and passes through pulling force top plate 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 plate 15 and torque load cylinder 31.As shown in figure 4, by main side drilling rod
14 end, one section is assembled with correcting wedge 30, thrust bearing 29, drilling rod bearing device 25, and passes through tail end drill steel support case
9 (Figure 12).Middle part drill steel support case 8 is passed through after several section connections among main side drilling rod 14, according to the whole of experiment main side drilling rod 14
Body length, the quantity of appropriate selection middle part drill steel support case 8.Then by several sections of 14 interlude of main side drilling rod respectively with first segment
Preliminary connection is saved with end, and passes through bolt for 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, main side drilling rod 14 is placed in symmetrical 4 and is led
Among wheel 284 and it is closed drilling rod track control device 28.It is bored as shown in Figure 1, will respectively be saved with sidetracking bar 6 and be connected and through power end
Bar supports case 7, middle part drill steel support case 8, tail end drill steel support case 9.
It (3), will be with 14 both ends of sidetracking bar 6 and main side drilling rod as shown in fig. 6, torque load cylinder 31 is in no load state
Drill rod connector tentatively connect with 4 bent gear couplings 17 respectively, control straight-line displacement mechanism 35, will install in connection procedure
It is balanced out with the axial stretching amount generated during sidetracking bar 6 and main side drilling rod 14.
(4) as shown in Figure 1, clutch 11 is kept to open, torque load cylinder 31 is adjusted to minimum point (as shown in Figure 7).
(5) clutch 11 is closed, and torque load cylinder 31 is controlled by electrical control hydraulic pump 2 and is increased to highest point (such as Fig. 6
It is shown).
(6) clutch 11 is opened, torque load cylinder 31 is controlled by electrical control hydraulic pump 2 and is reduced to minimum point.
(7) step (5) and step (6) are repeated, until tightening with sidetracking bar 6 and main side drilling rod 14.Along 14 table of main side drilling rod
A reference line is drawn in face, and Magnetic Memory fatigue damage detection system is recorded 14 data of main side drilling rod along reference line.
(8) jacking oil cylinder 24 is closed, by 28 adjusting screw rod of drilling rod track control device, 281 length, controls main side drilling rod
14 serpentine track parameters.
(9) clutch 11 is closed, and torque load cylinder 31 is controlled by electrical control hydraulic pump 2 and is increased, observes revolving speed torque
Sensor 19, when torque reaches test value, closing torque load cylinder 31 keeps constant torque.
(10) it adjusts the control of jacking oil cylinder 24 jacking power and reaches test value, close jacking oil cylinder 24, keep main side drilling rod 14
Tensions constant.
(11) revolving speed that motor 3 is controlled by control electronic box 1, observes the display of rotary speed torque sensor 19, works as revolving speed
When reaching test value, equipment operation is kept.
(12) when main side drilling rod 14 certain pulling force, torque, revolving speed, bending work reach the testing time when, stop setting
It is standby.
(13) torque load cylinder 31 is adjusted to minimum point, then opens clutch 11, drilling rod track control device 28 is adjusted
Hui Yuanwei is saved, jacking oil cylinder 24 unloads.The number of main side drilling rod 14 is recorded along reference line by Magnetic Memory fatigue damage detection system
According to.
(14) step (8) to step (13) are repeated, records 14 Magnetic Memory of main side drilling rod fatigue under different operating Parameter Conditions
The data of damage, are analyzed.
Claims (9)
1. a kind of horizontal directional drill drilling rod fatigue damage detection system, it is characterised in that: including drilling rod rotary motive power system, pulling force
Load and serpentine track control system, torque loading system and Magnetic Memory fatigue damage detection system, drilling rod rotary motive power system
Positioned at the power end side of drilling rod, pulling force load and serpentine track control system are located at drilling rod medium position, torque loading system position
In the both ends of drilling rod；
The drilling rod rotary motive power system includes control electronic box, motor, reduction gearbox, shaft coupling and drilling rod adapter, control electricity
Case controls motor rotational speed, and the revolving speed of motor output is transferred to drilling rod adapter after reduction gearbox slows down；
The pulling force load and serpentine track control system include drill steel support case, drilling rod bearing device, pulling force top plate, wedge piece
Block, thrust bearing, more than two jacking oil cylinders and 2 or more drilling rod rails being distributed in along drilling rod axially spaced-apart on drill steel support case
The main body of mark control device, drilling rod passes through drill steel support case and drill steel support case is stretched out at each drilling rod track control device, both ends
Outside, the power end of drilling rod passes through correcting wedge, thrust bearing and the drilling rod bearing device and pulling force top plate being successively mounted thereon
It is connected, the other end passes through correcting wedge, thrust bearing and drilling rod the bearing device limit successively installed, and each jacking oil cylinder is respectively positioned on
Between pulling force top plate and the power end of drill steel support case and it is symmetrically distributed in drilling rod power end side, jacking oil cylinder acts on drawing
Power top plate, the drilling rod track control device are made 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 is axial perpendicular to drilling rod and is threadedly coupled with drill steel support case, and sheath body is placed on drilling rod
On, each guide wheel is uniformly installed on inside sheath body and contacts with the cylindrical side of drilling rod；
The torque loading system include electrical control hydraulic pump, torque load cylinder, torque loading device, gear-box, clutch and
Straight-line displacement mechanism, electrical control hydraulic pump, torque load cylinder and torque loading device are respectively positioned on the power end of drilling rod, torque load
Oil cylinder is located at the lower section of torque loading device, and one end and the bottom of torque loading device side are connected, in torque loading device
Pitch wheel group is arranged in portion, and the revolving speed of motor output is transferred to drilling rod power end through reduction gearbox and torque loading device
Drilling rod adapter, gear-box and clutch are mounted on the tail in the moving element of straight-line displacement mechanism and being located at drilling rod
End, the drilling rod adapter of drilling rod tail end access gear-box by shaft coupling；
The Magnetic Memory fatigue damage detection system includes ring dress probe and Magnetic Memory Acquisition Instrument, and ring dress probe is by fixed ring and 4
A above probe is constituted, Fixing shrink ring on drilling rod, each probe interval and be evenly mounted in fixed ring and with drilling rod
Cylindrical side contact, probe are electrically connected with Magnetic Memory Acquisition Instrument.
2. horizontal directional drill drilling rod fatigue damage detection system according to claim 1, it is characterised in that: the drilling rod branch
Support case is made up of with upper box bolt sequential connection by 1.
3. horizontal directional drill drilling rod fatigue damage detection system according to claim 2, it is characterised in that: the top of cabinet
Viewing hole can be equipped on face, left side and right side.
4. horizontal directional drill drilling rod fatigue damage detection system according to claim 2, it is characterised in that: on pulling force top plate
It is symmetrically installed with 2 pairs of guide rods, guide rod is perpendicular to pulling force top plate and its movable end is protruded into and opened up on the cabinet of power end
In guide hole.
5. horizontal directional drill drilling rod fatigue damage detection system according to claim 1, it is characterised in that: connection torque adds
It carries to set and rotary speed torque sensor is installed on the transmission shaft of drilling rod power end drilling rod adapter.
6. horizontal directional drill drilling rod fatigue damage detection system according to claim 1, it is characterised in that: the straight line position
Telephone-moving structure is guide rail lead screw, and gear-box and clutch are mounted in the mobile station of guide rail lead screw, and lead screw is dynamic in guide rail lead screw
Power input terminal is equipped with rocking handle.
7. horizontal directional drill drilling rod fatigue damage detection system according to any one of claim 1 to 6, feature exist
In: there are four the drilling rod adapter is set, for connecting two drilling rods, the torque 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 the drilling rod of main side, and pulling force loading system acts on master
The power end of sidetracking bar.
8. horizontal directional drill drilling rod fatigue damage detection system according to claim 7, it is characterised in that: four drilling rods turn
Connector passes through bent gear coupling and corresponding transmission axis connection.
9. horizontal directional drill drilling rod fatigue damage detection system according to claim 1, it is characterised in that: drilling rod back rotation
Force system and torque loading system are mounted on testing stand, and pulling force load and serpentine track control system pass through supporting block branch
Support, drilling rod rotary motive power system, torque loading system and pulling force load and serpentine track control system are located at same level height
On.
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| CN108956118B (en) * | 2018-07-19 | 2020-11-06 | 大连海事大学 | Test bench capable of realizing non-excavation directional drilling parameter detection |
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| CN111159940B (en) * | 2019-12-25 | 2020-09-01 | 中国石油天然气集团有限公司 | Fatigue life analysis method for drill rod of horizontal directional drill |
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| CN113216937B (en) * | 2021-06-23 | 2022-05-20 | 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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