CN102335682B - Online detecting and straightening equipment and method of straightness of pipe end of drill pipe - Google Patents
Online detecting and straightening equipment and method of straightness of pipe end of drill pipe Download PDFInfo
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- CN102335682B CN102335682B CN 201010239151 CN201010239151A CN102335682B CN 102335682 B CN102335682 B CN 102335682B CN 201010239151 CN201010239151 CN 201010239151 CN 201010239151 A CN201010239151 A CN 201010239151A CN 102335682 B CN102335682 B CN 102335682B
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Abstract
The invention discloses online detecting and straightening equipment of the straightness of the pipe end of a drill pipe, which is used for detecting and straightening the straightness of the pipe end of a drill pipe to be detected. The online detecting and straightening equipment comprises a straightener, a positioning clamp device, a plurality of feeding devices, a PLC (Programmable Logic Controller) electric control system, an industrial personal computer, a lifting drive device and a pipe end straightness detection device, wherein the positioning clamp device is arranged on the straightener; the plurality of feeding devices are arranged beside the straightener in sequence along the axial conveying direction of a drill pipe shaft; the PLC electric control system is respectively and electrically connected with the feeding devices, the straightener and the positioning clamp device; the industrial personal computer is connected with the PLC electric control system; the lifting drive device is arranged on the straightener and electrically connected with the PLC electric control system; and the pipe end straightness detection device is fixedly connected with the lifting drive device and also electrically connected with the PLC electric control system. Correspondingly, the invention also discloses an online detecting and straightening method of the straightness of the pipe end of the drill pipe.
Description
Technical field
The present invention relates to checkout equipment and control method thereof in a kind of field of metallurgy, relate in particular to a kind of straight degree checkout equipment and control method thereof of drill rod pipe end.
Background technology
Drilling rod needs to guarantee its quality as one of the staple product of steel pipe's production in field of metallurgy.Bore rod straightness is one of major criterion of weighing the drilling rod quality.The straightening of drilling rod is completed by special equipment for straightening and technique.Yet, because most of drilling rod all needs to process through end upsetting, the both ends pier under heated condition that is about to drilling rod is thick, so that back welding processing, this just causes the diameter of the two ends of drill diameter of thickening and drilling rod mid portion different, cause existing equipment for straightening to align the drilling pipe end, formed the blind area of straightening drill pipe.
The method that makes up at present this straightening blind area is to have increased drill rod pipe end gag press straightening operation after the straightening drill pipe operation, specially local straightening processing is carried out at the both ends of drilling rod, makes the drilling rod total length satisfy the requirement of API linearity.This drill rod pipe end gag press straightening operation is realized by the drill rod pipe end pressure straightening device, existing drill rod pipe end pressure straightening device comprises feeding skid, V-type conveying roller, vertically rotates movement roller, gag straightener, discharging stand and control system etc., completes the output after input, aligning and the aligning of drilling rod.But by the said equipment form can find out this pressure straightening device before aligning must first judge position and the diastrophic size that drill rod pipe end occurs bending and deformation, and then determine the position of gag press straightening and the size of active force according to crooked position and crooked size.
prior art is to determine flexural deformation position and flexural deformation size by artificial ocular estimate: operate by operating personnel the drilling rod that rotary supporting roller will be to be aligned and support and rotate, a marking pen is supported on the side support of drill rod pipe end by another testing staff, the distance that chalk and pipe end surface reservation are certain, when drilling rod rotates, operating personnel use the variable in distance of eyes observation tube end surfaces and the mark tip of the brushstyle of a writing or painting, when artificial judgement this apart from increasing and when being above standard, just use marking pen at the standardized mark in pipe end surface, definite rolling overproof position, utilize simultaneously the dial gauge pointer of riding on advising to judge the straight degree of blind area, as overproof, and carry out mark with marking pen.After all detecting well when the blind area with the rolling head, another operating personnel drilling rod that just stops the rotation, the information and the mark that provide according to the testing staff simultaneously judge position and the aligning amount that needs aligning, then manually align, when manually aligning, the testing staff coordinates observation to be fixed on the dial gauge on straightener side, and the amount of feeding of artificial judgement aligning in time notifies operating personnel to stop aligning feeding.The method is too dependent on operating personnel and testing staff's experience and technical merit, and detection and flattening precision are not high, and efficient is low.
Summary of the invention
The purpose of this invention is to provide a kind of straightness of pipe end of drill and detect online equipment for straightening and method, realize that straightness of pipe end of drill detects and the automation of aligning, thereby improve the precision that detects and align, increase work efficiency.
According to above-mentioned purpose of the present invention, the present invention proposes a kind of straightness of pipe end of drill and detect online equipment for straightening, for detection of directly spending with the pipe end of aligning drilling rod to be measured, it comprises:
One straightener;
One is located at the positioning jig device on straightener;
Some pay-offs, be located at successively described straightener along the axial throughput direction of drilling rod by, wherein each pay-off includes rotate in a circumferential direction device and an axial conveying device;
One PLC electric-control system is electrically connected to respectively with described pay-off, straightener and positioning jig device; One industrial computer is connected with described PLC electric-control system;
One lifting drive is located on described straightener, is positioned at the top of drilling rod to be measured, and described lifting drive is connected with the PLC electric-control system;
One pipe end straightness detecting device is fixedly connected with described lifting drive, is positioned at the top of drilling rod to be measured, and described pipe end straightness detecting device also is connected with described PLC electric-control system.
Preferably, described straightener comprises: an aligning support; One is located at the top on the aligning support; One actuating unit that is connected with described top; One pressure sensor that is connected with described actuating unit; The one aligning displacement transducer that is connected with described top.
Preferably, described positioning jig device is located at position relative with described top on described aligning support, and described positioning jig device comprises: a fixture drive motors; One power transmission shaft that is connected with described fixture drive motors, described power transmission shaft and drilling rod be arranged in parallel; Two clamping fixture seats, symmetry are fixed on described power transmission shaft; Two fixtures are fixedly connected with each clamping fixture seat is corresponding respectively.
Preferably, in described positioning jig device, the clamping face of two fixtures is the high low platform terrace, described each high low platform terrace includes: a high clamping face and a low clamping face, described low clamping face is arranged at the inboard of high clamping face, described high clamping face is equipped with a position-sensing switch with the critical place of corresponding low clamping face, and described two position-sensing switches all are connected with the PLC electric-control system.This high low platform terrace be arranged so that positioning fixture can poor drill rod pipe end firmly clamps with having a fixed-caliber, arranging of position-sensing switch can prevent that drill rod pipe end and straightness of pipe end of drill from detecting online equipment for straightening and bumping in addition, plays good positioning control effect.
Preferably, described each pay-off also comprises: a holder, and its upper surface has a chute, described chute and vertical setting of the axial throughput direction of drilling rod; One translation support, its bottom is provided with a slide block, and described slide block is located in described chute, and the described device that rotates in a circumferential direction all is located on the translation support with axial conveying device; Translation support in described each pay-off all is connected with a translation carriage drive element by a connection piece, and described translation carriage drive element is connected with described PLC electric-control system.The above-mentioned setting can be realized that the drilling rod that is transferred is pressed close to or away from positioning fixture, realize that drilling rod carries out translation along the direction vertical with its axial direction.
Preferably, described each translation support includes:
One right angle frame comprises a base plate and a vertical panel, and described slide block is located at the bottom of base plate, and described axial conveying device is located at the upper end of vertical panel;
One oscillating deck, the upper articulation of its left end and described vertical panel, the described device that rotates in a circumferential direction is located at the right-hand member of oscillating deck;
One wedge, its inclined plane are located on described base plate up slidably, and the sliding trace of described wedge is parallel with the axial throughput direction of drilling rod;
One supporting, its upper end is fixedly connected with the right-hand member lower surface of described oscillating deck, and its lower end is connected with a bearing, and described bearing is held on the inclined plane of described wedge;
One pull bar is fixedly connected with described wedge;
The pull bar of described each translation support all is connected with a pull bar driving element, and described pull bar driving element is connected with the PLC electric-control system.
The above-mentioned setting can be by pulling pull bar, and regulating shaft is to the relative height of conveying device with the device that rotates in a circumferential direction, thereby it is alternately put into to the conveying of drilling rod on.
Preferably, described lifting drive comprises:
One supporting seat is fixed on described straightener;
One motor is fixed on described supporting seat;
Two drive sprockets are located on described supporting seat relatively, and are connected with described motor by same chain wheel transmission shaft, and described each drive sprocket is all by chain connection corresponding to a pair of driven sprocket;
Four crank arms are fixedly connected with each driven sprocket is corresponding respectively, and described each crank arm is set parallel to each other;
One lifting frame, its left and right both sides support is fixedly connected with the crank arm of two pairs of corresponding connections of driven sprocket respectively, and the front support of described lifting frame is fixedly connected with described pipe end straightness detecting device.
Preferably, described pipe end straightness detecting device comprises:
The measurement bay of one strip be arranged in parallel along drilling rod axial direction and drilling rod, and described measurement bay is fixedly connected with lifting drive;
Two V-types are ridden plate, and Open Side Down arranges, and described V-type is ridden plate and is provided with a synchronous pinch roller, and described synchronous pinch roller is provided with the encoder that rotates in a circumferential direction, and the described encoder that rotates in a circumferential direction all is connected with the PLC electric-control system;
Two V-types are ridden the plate driving element, ride the corresponding connection of plate with each V-type respectively, and described two V-types are ridden plate driving element symmetry and are fixed on described measurement bay, and described V-type is ridden the plate driving element and also all is connected with the PLC electric-control system;
Some displacement transducers are arranged in the lower surface of measurement bay along described measurement bay length direction, described each displacement transducer all is connected with the PLC electric-control system;
Four limit switches, be respectively the first, second, third and the 4th limit switch that sets gradually along measurement bay, wherein first, second limit switch is located at the front end lower surface of described measurement bay, three, the 4th limit switch is located at the rear end lower surface of described measurement bay, and described four limit switches all are connected with the PLC electric-control system.
Preferably, described pipe end straightness detecting device also comprises:
One fixed mount is located between described lifting drive and measurement bay;
The pair of flexible assembly, its upper end is connected with described fixed mount, and its lower end is connected with described measurement bay, in order to realize the Relative Floating of measurement bay and fixed mount.The setting of this flexible unit can so that V-type is ridden plate fit all the time drilling rod surface, realize flexible floating.
Preferably, described displacement transducer is the non-contact laser displacement transducer.
Correspondingly, the present invention also provides a kind of straightness of pipe end of drill to detect online method for aligning, and it comprises the steps:
1) beginning;
2) PLC electric control system controls lifting drive drive pipe end straightness detecting device drops to the detection station;
3) the axial conveying device of PLC electric control system controls is carried drilling rod along the drilling rod axial direction, and the pipe end straightness detecting device detects the initial bending amount δ of each measurement point of drilling rod front end
1, δ
2..., δ
n, and transmit it to the PLC electric-control system;
4) the PLC electric-control system is with the initial bending amount δ of each measurement point of drilling rod front end
1, δ
2..., δ
nTransfer to industrial computer, industrial computer calculates respectively the initial bending amount δ of each measurement point of drilling rod front end
1, δ
2..., δ
nWith default standard straight degree δ
0Difference Q
1, Q
2..., Q
nIf, Q
1, Q
2..., Q
nAll be less than or equal to 0 direct execution in step 6), if Q
i＞0, industrial computer is with the positive difference Q of maximum
maxTransfer to PLC electric-control system execution in step 5), 1≤i≤n;
5) straightener according to the control of PLC electric-control system to the maximum positive difference Q of drilling rod front end
maxCorresponding measurement point is aligned;
6) after PLC electric control system controls rod tube end straightness detecting device left the drilling rod surface, the axial conveying device of PLC electric control system controls continued to be fed forward drilling rod, and the pipe end straightness detecting device detects the initial bending amount δ of each measurement point of drilling rod rear end
1, δ
2..., δ
n, and transmit it to the PLC electric-control system;
7) the PLC electric-control system is with the initial bending amount δ of each measurement point of drilling rod rear end
1, δ
2..., δ
nTransfer to industrial computer, industrial computer calculates respectively the initial bending amount δ of each measurement point of drilling rod rear end
1, δ
2..., δ
nWith default standard straight degree δ
0Difference Q
1, Q
2..., Q
nIf, Q
1, Q
2..., Q
nAll be less than or equal to 0, direct execution in step 9), if Q
i＞0, industrial computer is with the positive difference Q of maximum
maxTransfer to PLC electric-control system execution in step 8), 1≤i≤n;
8) straightener according to the control of PLC electric-control system to the drilling rod maximum positive difference Q in rear end
maxCorresponding measurement point is aligned;
9) finish.
Preferably, described step 3) specifically comprise:
3a) the drilling rod front end enters below measurement bay, the second limit switch of measurement bay front end detects the backward PLC electric-control system of drilling rod transmission " material is arranged " signal, and the PLC electric-control system receives after " material is arranged " signal of the second limit switch transmission Control Shaft and slows down to conveying device and carry drilling rod;
3b) the first limit switch of measurement bay front end detects the backward PLC electric-control system of drilling rod transmission " material is arranged " signal, and after the PLC electric-control system receives " material is arranged " signal of the first limit switch transmission, Control Shaft stops carrying drilling rod to conveying device;
3c) PLC electric control system controls V-type is ridden the plate driving element and is driven V-type and ride plate and descend and ride over the drilling rod front end surface until V-type is ridden plate, then the PLC electric control system controls device that rotates in a circumferential direction drives the drilling rod rotation, and being located at N displacement transducer on measurement bay, corresponding to detect apart from drilling rod front end end distance be X
1, X
2..., X
nThe initial bending amount δ of each measurement point
1, δ
2..., δ
n, and the result that will record transfers to the PLC electric-control system, the encoder that rotates in a circumferential direction detects the angle that drilling rod turns over and also angle signal is transferred to the PLC electric-control system, and after drilling rod turns over 360 degree, the PLC electric control system controls device drilling rod that stops the rotation that rotates in a circumferential direction.
Preferably, described step 5) or step 9) specifically comprise:
A) the PLC electric-control system controls according to the angle signal of the encoder transmission that rotates in a circumferential direction the device rotary drill rod that rotates in a circumferential direction, and makes position to be aligned along the center of the top of circumferential direction rotary alignment straightener;
B) the axial conveying device of PLC electric control system controls is adjusted the axial location of drilling rod, controls simultaneously the axial location of the fixture drive motors adjustment fixture in positioning jig device, makes position to be aligned in axial direction be positioned at the center of two fixtures;
C) the translation support of PLC electric control system controls pay-off is together with the direction translation of drilling rod to close two fixture clamping faces, after being located at position-sensing switch on two fixtures and drilling rod being detected, to PLC electric-control system transmission " material is arranged " signal, PLC electric control system controls translation support stops action;
D) industrial computer calculates the top amount of feeding setting value of straightener, and the computation model of top amount of feeding setting value λ is:
In following formula: E
0Be elastic modelling quantity; G is the yield strength of drilling rod; δ
maxWait to align initial bending amount a little, its displacement transducer by correspondence records; D is the drilling rod external diameter; L is the spacing of two fixtures; T is the wall thickness of drilling rod; b
0, b
1, b
2Be respectively linear regression coeffficient, b
0Be 0.8～1.2, b
1Be 0.4～0.7, b
2Be 0.6～0.8;
E) actuating unit of PLC electric control system controls straightener promotes the top action, until heading joint contacts the drilling rod surface;
F) industrial computer will come directly towards the amount of feeding and transfer to the PLC electric-control system, the PLC electric control system controls hold out against continue to march forward behind the drilling rod surface to, the aligning displacement transducer detects the actual amount of feeding in top in real time, and real-time Transmission is to the PLC electric-control system;
G) when the actual amount of feeding in top equals to come directly towards amount of feeding setting value, the PLC electric control system controls comes directly towards and resets.
Preferably, described step 6) specifically comprise:
6a) PLC electric control system controls V-type is ridden the plate rise, leave the drilling rod front end surface, then the axial conveying device of PLC electric control system controls continues to be fed forward drilling rod, after the 4th limit switch on measurement bay can't detect drilling rod, send " without material " signal to the PLC electric-control system, after the PLC electric-control system received " without material " signal of the 4th limit switch transmission, Control Shaft slowed down to conveying device and carries drilling rod;
After 6b) the 3rd limit switch on the measurement bay can't detect drilling rod, send " without material " signal to the PLC electric-control system, after the PLC electric-control system received " without material " signal of the 3rd limit switch transmission, Control Shaft stopped carrying drilling rod to conveying device;
6c) PLC electric control system controls V-type is ridden the plate driving element and is driven V-type and ride plate and descend and ride over drilling rod until V-type is ridden plate, the PLC electric control system controls device that rotates in a circumferential direction drives the drilling rod rotation, and being located at N displacement transducer on measurement bay, corresponding to detect apart from end, drilling rod rear end distance be X
1, X
2..., X
nThe initial bending amount δ of each measurement point
1, δ
2..., δ
n, and the result that will record transfers to the PLC electric-control system, the encoder that rotates in a circumferential direction detects the angle that drilling rod turns over and also angle signal is transferred to the PLC electric-control system, and after drilling rod turns over 360 degree, the PLC electric control system controls device drilling rod that stops the rotation that rotates in a circumferential direction.
Preferably, in described each step, when the axial conveying device of PLC electric control system controls is carried drilling rod along the drilling rod axial direction, the PLC electric-control system is first controlled the pull bar driving element and is driven the wedge slip, make oscillating deck be rocked to axial conveying device higher than the position of the device that rotates in a circumferential direction, PLC electric-control system Control Shaft is again carried drilling rod to conveying device.
Preferably, in described each step, when the PLC electric control system controls rotates in a circumferential direction the device rotary drill rod, the PLC electric-control system is first controlled the pull bar driving element and is driven the wedge slip, oscillating deck is rocked to rotate in a circumferential direction device higher than the axial position of conveying device, the PLC electric-control system is controlled the device rotary drill rod that rotates in a circumferential direction again.
Straightness of pipe end of drill of the present invention detects online equipment for straightening and can detect the blind area to existing drill rod pipe end and carry out automation and accurately detect, and aligns according to testing result, has greatly improved the production efficiency of drill rod pipe end aligning.
Figure of description
Fig. 1 is that straightness of pipe end of drill of the present invention detects the equipment for straightening structural representation online.
Fig. 2 is the structural representation that straightness of pipe end of drill of the present invention detects positioning jig device in equipment for straightening online.
Fig. 3 is the structural representation of positioning jig device in a preferred embodiment of the present invention.
Fig. 4 a is the structural representation of pay-off in a preferred embodiment of the present invention.
Fig. 4 b is the side view of Fig. 4 a.
Fig. 5 is the annexation top view of some pay-offs in a preferred embodiment of the present invention.
Fig. 6 is the feed station schematic diagram of the axial conveying device in pay-off.
Fig. 7 is the feed station schematic diagram of the device that rotates in a circumferential direction in pay-off.
Fig. 8 a is the structure top view that straightness of pipe end of drill of the present invention detects lifting drive in equipment for straightening online.
Fig. 8 b is the side view of Fig. 8 a.
Fig. 9 is the structural representation that straightness of pipe end of drill of the present invention detects pipe end straightness detecting device in equipment for straightening online.
The drawing reference numeral explanation:
1-straightener 11-aligning support 12-top 13-actuating unit
14-pressure sensor 15-aligning displacement transducer 2-positioning jig device 21-fixture drive motors
The high clamping face of 22-power transmission shaft 23-clamping fixture seat 24-fixture 241-
242-hangs down clamping face 243-position-sensing switch 25-clamp motor encoder 3-pay-off
The 31-axial conveying device 33-holder of the device 32-331-chute that rotates in a circumferential direction
34-translation support 341-right angle frame 342-oscillating deck 343-wedge
344-supporting 345-bearing 346-pull bar 35-slide block
36-pivot 4-translation shaft 6-connector 7-translation carriage drive element
8-lifting drive 81-supporting seat 82-motor 83-drive sprocket
84-chain wheel transmission shaft 85-chain 86-driven sprocket 87-crank arm
88-lifting frame 9-pipe end straightness detecting device 91-measurement bay 92-V type is ridden plate
The synchronous pinch roller 94-of the 93-encoder 95-V type that rotates in a circumferential direction is ridden the plate driving element
96-displacement transducer 97-first limit switch 98-the second limit switch 99-the 3rd limit switch
910-the 4th limit switch 911-fixed mount 912-flexible unit
The specific embodiment
Below in conjunction with Figure of description, introducing in detail the present invention is a kind of preferred embodiment.
As shown in Figure 1 be that straightness of pipe end of drill detects equipment for straightening online, it comprises: straightener 1; Be located at the positioning jig device 2 on straightener 1, be located at the lifting drive 8 on straightener 1, the pipe end straightness detecting device 9 that is fixedly connected with lifting drive 8, also be provided with the pay-off of some conveying drilling rods in the both sides of straightener 1, wherein straightener 1, positioning jig device 2, pay-off, drive unit 8 and pipe end straightness detecting device 9 all with together with the PLC electric-control system of control action connect, the PLC electric-control system is connected with industrial computer.
As shown in Figures 2 and 3, the positioning jig device 2 in the present invention is located at position relative with top 12 on described aligning support, and positioning jig device 2 comprises: fixture drive motors 21; The power transmission shaft 22 that is connected with fixture drive motors 21, power transmission shaft 22 be arranged in parallel with drilling rod; Two clamping fixture seats 23, symmetry are fixed on power transmission shaft 22; Two fixtures 24, clamping fixture seat 23 is corresponding is fixedly connected with each respectively; Wherein the clamping face of two fixtures 24 is the high low platform terrace, formed by a high clamping face 241 and a low clamping face 242, thereby form the clamping face with the drill rod pipe end coupling, high clamping face 241 is equipped with position-sensing switch 243, two position-sensing switches 243 with the critical place of corresponding low clamping face 242 and all is connected with the PLC electric-control system.
As shown in Fig. 4 a and Fig. 4 b, pay-off in the present invention comprises the axial conveying device 32 of axial conveying drilling rod, and the device 31 that rotates in a circumferential direction of the drilling rod that rotates in a circumferential direction, and comprises in addition: holder 33, its upper surface has a chute 331, chute 331 and vertical setting of the axial throughput direction of drilling rod; Translation support 34, rotate in a circumferential direction device 31 and axial conveying device 32 are all provided thereon, and the bottom of translation support 34 is provided with a slide block 35, and slide block 35 is located in chute 331, can slide along chute 331.Translation support 34 comprises: the right angle frame 341 that is comprised of a base plate and a vertical panel; The left end of oscillating deck 342 is by the upper articulation of pivot 36 with vertical panel; Wedge 343, its inclined plane are located on base plate up slidably, and the sliding trace of wedge 343 is parallel with the axial throughput direction of drilling rod; Supporting 344, its upper end is fixedly connected with the right-hand member lower surface of oscillating deck 342, and its lower end is connected with bearing 345; Bearing 345 is held on the inclined plane of wedge 343.So horizontal level of mobile wedge 343, the swing position of bearing 345 indirect regulation oscillating decks 342 that just can be by being in contact with it connection, thereby regulate the relative height of rotate in a circumferential direction device 31 and axial conveying device 32, make the device 31 that rotates in a circumferential direction controllably enter feed station with axial conveying device 32.
As shown in Figure 5, some pay-offs 3 are divided into porch and the outlet side both sides of straightener 1 successively, each pay-off 3 all is connected with translation shaft 4 by a connection piece 6, translation shaft 4 is controlled by translation carriage drive element 7, drive the translation support, so drive drilling rod to the positioning jig device direction near or away from positioning jig device.Translation carriage drive element 7 can be any elements that pulling force and thrust can be provided such as cylinder, oil cylinder, screw mandrel, and it accepts the control of connected PLC electric-control system.
As shown in Figure 6, be connected to each other by pull bar 346 between each pay-off, pull bar 346 is fixedly connected with wedge 343.When drilling rod P needs axially to carry, pull bar driving element 10 is accepted the control of connected PLC electric-control system, pull pull bar 346, and then wedge 343 is moved horizontally along the drilling rod throughput direction, bearing moves downward along the inclined plane of wedge 343, makes oscillating deck swing to the low-angle direction, the device 31 that rotates in a circumferential direction does not come in contact with drilling rod P, only have axial conveying device 32 to contact with drilling rod P, axially transport drilling rod P, this moment, drilling rod P was also lower apart from the height on ground.Pull bar driving element 10 can be any elements that pulling force and thrust can be provided such as cylinder, oil cylinder, screw mandrel.
As shown in Figure 7, when drilling rod P need to rotate in a circumferential direction, pull bar driving element 10 is accepted the control of connected PLC electric-control system, pull pull bar 346, and then wedge 343 is moved horizontally along the drilling rod throughput direction, bearing moves upward along the inclined plane of wedge 343, make oscillating deck swing to the wide-angle direction, axially conveying device 32 does not come in contact with drilling rod P, 31 devices that only rotate in a circumferential direction contact with drilling rod P, the drilling rod P that rotates in a circumferential direction, the drilling rod P this moment state more shown in Figure 6 apart from the height on ground is higher.Therefore this device is gone back capable of adjusting drilling bar P simultaneously apart from the height on ground, thereby is detecting, coordinating in the aligning process each step adjustment corresponding position.
As shown in Fig. 8 a and Fig. 8 b, lifting drive comprises: supporting seat 81, its fixed mount are located on the aligning support of straightener; Motor 82 is fixed on supporting seat 81; Two drive sprockets 83 are located on supporting seat 81 relatively, and are connected with described motor 82 by same chain wheel transmission shaft 84, and each drive sprocket 83 is all by a chain 85 and the corresponding connection of a pair of driven sprocket 86; Four crank arms 87, driven sprocket 86 is corresponding is fixedly connected with each respectively, and described each crank arm 87 is set parallel to each other; One lifting frame 88, its left and right both sides support is fixedly connected with the crank arm 87 of two pairs of corresponding connections of driven sprocket 86 respectively, and the front support of described lifting frame 88 is fixedly connected with described pipe end straightness detecting device 9.
Need to be appreciated that; the concrete structure of above-mentioned lifting drive is only a kind of implementation that straightness of pipe end of drill of the present invention detects lifting drive in equipment for straightening online, and other adopt air cylinder driven, worm and gear driving, gear-rack drive etc. can realize that the device of lifting drive rising or decline is all in protection scope of the present invention.
As shown in Figure 9, the pipe end straightness detecting device comprises: the measurement bay 91 of strip, and it be arranged in parallel along drilling rod axial direction and drilling rod, and measurement bay 91 is fixedly connected with lifting drive; Two V-types are ridden plate 92, Open Side Down arranges, each V-type is ridden and is equipped with a synchronous pinch roller 93 on plate 92, on described each synchronous pinch roller 93 all correspondence be provided with the encoder 94 that rotates in a circumferential direction, the described encoder 94 that respectively rotates in a circumferential direction all is connected with the PLC electric-control system, and when drilling rod rotated, the synchronous pinch roller 93 that is in contact with it was just synchronizeed with drilling rod under the effect of frictional force and rotated, the angle that the 94 pairs of synchronous pinch rollers of encoder that rotate in a circumferential direction turn over detects, thereby indirectly measures the angle that drilling rod turns over; Two V-types are ridden plate driving element 95, ride the corresponding connection of plate 92 with two V-types respectively, two V-types are ridden plate driving element 95 symmetries and are fixed on measurement bay 91, each V-type is ridden the plate driving element and is connected with the PLC electric-control system, accept the control of PLC electric-control system, V-type is ridden plate driving element 95 can be cylinder, oil cylinder or other dynamical elements; 9 displacement transducers 96 are laser displacement sensor, it is arranged in the lower surface of measurement bay 91 successively along the measurement bay length direction, 9 measurement points corresponding with described 9 laser displacement sensors 96 are carried out straight degree measure, described each laser displacement sensor 96 all is connected with the PLC electric-control system; The first limit switch 97 and the second limit switch 98 are located at the front end lower surface of measurement bay 91, and the 3rd limit switch 99 and the 4th limit switch 910 are located at the rear end lower surface of measurement bay 91, and above-mentioned four limit switches all are connected with the PLC electric-control system; Fixed mount 911 is located between described lifting drive and measurement bay (91); Pair of flexible assembly 912, its upper end is connected with described fixed mount 911, and its lower end is connected with described measurement bay 91, in order to realize the Relative Floating of measurement bay 91 and fixed mount 911.This flexible unit can be any assemblies that can realize flexibility function such as spring assembly, and purpose is unsteady for measurement bay 91 is realized, thereby improves the precision of measuring.
Detect online equipment for straightening below in conjunction with above-mentioned straightness of pipe end of drill, introduce straightness of pipe end of drill and detect online method for aligning:
1) beginning;
2) PLC electric control system controls lifting drive drive pipe end straightness detecting device drops to the detection station;
3) the axial conveying device of PLC electric control system controls is carried drilling rod along the drilling rod axial direction, and the pipe end straightness detecting device detects the initial bending amount δ of each measurement point of drilling rod front end
1, δ
2..., δ
n, and transmit it to the PLC electric-control system:
The drilling rod front end enters below measurement bay, the second limit switch of measurement bay front end detects the backward PLC electric-control system of drilling rod transmission " material is arranged " signal, and the PLC electric-control system receives after " material is arranged " signal of the second limit switch transmission Control Shaft and slows down to conveying device and carry drilling rod;
The first limit switch of measurement bay front end detects the backward PLC electric-control system of drilling rod transmission " material is arranged " signal, and after the PLC electric-control system receives " material is arranged " signal of the first limit switch transmission, Control Shaft stops carrying drilling rod to conveying device;
PLC electric control system controls V-type is ridden the plate driving element and is driven V-type and ride plate and descend and ride over the drilling rod front end surface until V-type is ridden plate, then the PLC electric control system controls device that rotates in a circumferential direction drives the drilling rod rotation, is located at the corresponding initial bending amount δ that detects 9 measurement points of 9 displacement transducers on measurement bay
1, δ
2..., δ
9(concrete measured value is referring to table 1), and the result that will record transfers to the PLC electric-control system, the encoder that rotates in a circumferential direction detects the angle that drilling rod turns over and also angle signal is transferred to the PLC electric-control system, after drilling rod turns over 360 degree, and the PLC electric control system controls device drilling rod that stops the rotation that rotates in a circumferential direction.
4) the PLC electric-control system is with the initial bending amount δ of each measurement point of drilling rod front end
1, δ
2..., δ
nTransfer to industrial computer, industrial computer calculates respectively the initial bending amount δ of each measurement point of drilling rod front end
1, δ
2..., δ
nWith default standard straight degree δ
0Difference Q
1, Q
2..., Q
n, (value of each measurement point is as shown in table 1) is if Q
1, Q
2..., Q
nAll be less than or equal to 0 direct execution in step 6), if Q
i＞0, industrial computer is with the positive difference Q of maximum
maxTransfer to PLC electric-control system execution in step 5), 1≤i≤n;
Measured value (the unit: mm) of each measurement point of table 1 drilling rod front end
| δ 1 | δ 2 | δ 3 | δ 4 | δ 5 | δ 6 | δ 7 | δ 8 | δ 9 | δ 0 |
| 0.8 | 0.9 | 1.1 | 1.4 | 1.2 | 1.0 | 1.0 | 0.9 | 0.9 | 1.2 |
| Q 1 | Q 2 | Q 3 | Q 4 | Q 5 | Q 6 | Q 7 | Q 8 | Q 9 | |
| 0.4 | -0.3 | -0.1 | 0.2 | 0 | -0.2 | -0.2 | -0.3 | -0.3 |
Therefore need to be to δ
4(Q
4) corresponding this point aligns.
5) straightener according to the control of PLC electric-control system to drilling rod front end δ
4(Q
4) corresponding this point aligns:
A) the PLC electric-control system controls according to the angle signal of the encoder transmission that rotates in a circumferential direction the device rotary drill rod that rotates in a circumferential direction, and makes position to be aligned along the center of the top of circumferential direction rotary alignment straightener;
B) the axial conveying device of PLC electric control system controls is adjusted the axial location of drilling rod, controls simultaneously the axial location of the fixture drive motors adjustment fixture in positioning jig device, makes position to be aligned in axial direction be positioned at the center of two fixtures;
C) the translation support of PLC electric control system controls pay-off is together with the direction translation of drilling rod to close two fixture clamping faces, after being located at position-sensing switch on two fixtures and drilling rod being detected, to PLC electric-control system transmission " material is arranged " signal, PLC electric control system controls translation support stops action;
D) industrial computer calculates the top amount of feeding setting value of straightener, and the computation model of top amount of feeding setting value λ is:
E wherein
0Value is 210Gpa; G is 382Mpa; δ
maxBe δ
4, its value is as shown in table 1 is 1.4mm; D is 139.7mm; L is 800mm; T is 9.17mm; b
0Be 1.2; b
1Be 0.7; b
2Be 0.7, calculate to get λ=2.67mm;
E) actuating unit of PLC electric control system controls straightener promotes the top action, until heading joint contacts the drilling rod surface;
F) industrial computer will come directly towards the amount of feeding and transfer to the PLC electric-control system, the PLC electric control system controls hold out against continue to march forward behind the drilling rod surface to, the aligning displacement transducer detects the actual amount of feeding in top in real time, and real-time Transmission is to the PLC electric-control system;
G) when the actual amount of feeding in top equaled to come directly towards amount of feeding setting value 2.67mm, the PLC electric control system controls came directly towards and resets.
6) after PLC electric control system controls pipe end straightness detecting device left the drilling rod surface, the axial conveying device of PLC electric control system controls continued to be fed forward drilling rod, and the pipe end straightness detecting device detects the initial bending amount 6 of each measurement point of drilling rod rear end
1, δ
2..., δ
9, and transmit it to the PLC electric-control system:
PLC electric control system controls V-type is ridden plate and is risen, leave the drilling rod front end surface, then the axial conveying device of PLC electric control system controls continues to be fed forward drilling rod, after the 4th limit switch on measurement bay can't detect drilling rod, send " without material " signal to the PLC electric-control system, after the PLC electric-control system received " without material " signal of the 4th limit switch transmission, Control Shaft slowed down to conveying device and carries drilling rod;
After the 3rd limit switch on measurement bay can't detect drilling rod, send " without material " signal to the PLC electric-control system, after the PLC electric-control system received " without material " signal of the 3rd limit switch transmission, Control Shaft stopped carrying drilling rod to conveying device;
PLC electric control system controls V-type is ridden the plate driving element and is driven V-type and ride plate and descend and ride over drilling rod until V-type is ridden plate, the PLC electric control system controls device that rotates in a circumferential direction drives the drilling rod rotation, is located at the corresponding initial bending amount δ that detects each measurement points of 9 displacement transducers on measurement bay
1, δ
2..., δ
9, and the result that will record transfers to the PLC electric-control system, the encoder that rotates in a circumferential direction detects the angle that drilling rod turns over and also angle signal is transferred to the PLC electric-control system, and after drilling rod turns over 360 degree, the PLC electric control system controls device drilling rod that stops the rotation that rotates in a circumferential direction.
7) the PLC electric-control system is with the initial bending amount δ of each measurement point of drilling rod rear end
1, δ
2..., δ
nTransfer to industrial computer, industrial computer calculates respectively the initial bending amount δ of each measurement point of drilling rod rear end
1, δ
2..., δ
nWith default standard straight degree δ
0Difference Q
1, Q
2..., Q
n, (value of each measurement point is as shown in table 2) is if Q
1, Q
2..., Q
nAll be less than or equal to 0 direct execution in step 6), if Q
i＞0, industrial computer is with the positive difference Q of maximum
maxTransfer to PLC electric-control system execution in step 5), 1≤i≤n;
Measured value (the unit: mm) of each measurement point of table 2 drilling rod rear end
| δ 1 | δ 2 | δ 3 | δ 4 | δ 5 | δ 6 | δ 7 | δ 8 | δ 9 | δ 0 |
| 1.0 | 1.2 | 1.5 | 1.2 | 1.1 | 0.9 | 1.0 | 0.8 | 0.9 | 1.2 |
| Q 1 | Q 2 | Q 3 | Q 4 | Q 5 | Q 6 | Q 7 | Q 8 | Q 9 | |
| -0.2 | 0 | 0.3 | 0 | -0.1 | -0.3 | -0.2 | -0.4 | -0.3 |
Therefore need to be to δ
3(Q
3) corresponding measurement point aligns.
8) straightener according to the control of PLC electric-control system to drilling rod rear end δ
3Corresponding point is aligned:
A) the PLC electric-control system controls according to the angle signal of the encoder transmission that rotates in a circumferential direction the device rotary drill rod that rotates in a circumferential direction, and makes position to be aligned along the center of the top of circumferential direction rotary alignment straightener;
B) the axial conveying device of PLC electric control system controls is adjusted the axial location of drilling rod, controls simultaneously the axial location of the fixture drive motors adjustment fixture in positioning jig device, makes position to be aligned in axial direction be positioned at the center of two fixtures;
C) the translation support of PLC electric control system controls pay-off is together with the direction translation of drilling rod to close two fixture clamping faces, after being located at position-sensing switch on two fixtures and drilling rod being detected, to PLC electric-control system transmission " material is arranged " signal, PLC electric control system controls translation support stops action;
D) industrial computer calculates the top amount of feeding setting value of straightener, and the computation model of top amount of feeding setting value λ is:
Wherein, E
0Be 210Gpa; G is 382Mpa; δ
maxBe δ
3, its value is 1.5mm; D is 139.7mm; L is 700mm; T is 9.17mm; b
0Be 1.2; b
1Be 0.7; b
2Be 0.7; Calculate to get λ=2.56mm.
E) actuating unit of PLC electric control system controls straightener promotes the top action, until heading joint contacts the drilling rod surface;
F) industrial computer will come directly towards the amount of feeding and transfer to the PLC electric-control system, the PLC electric control system controls hold out against continue to march forward behind the drilling rod surface to, the aligning displacement transducer detects the actual amount of feeding in top in real time, and real-time Transmission is to the PLC electric-control system;
G) when the actual amount of feeding in top equaled to come directly towards amount of feeding setting value 2.56mm, the PLC electric control system controls came directly towards and resets.
9) finish.
If will further improve the precision of detection, also can repeatedly recheck straightness of pipe end of drill according to above-mentioned steps.
In the present embodiment, the straight degree measured value that all only has a measurement point due to drilling rod front end, rear end namely only has the Q of a point greater than standard straight degree value
i＞0, therefore just this point is aligned, if the Q of some points is arranged
iAll greater than 0, so just need to select the value of a maximum in these points, and measurement point corresponding to this maximum aligned.
Be noted that above enumerate only for specific embodiments of the invention, obviously the invention is not restricted to above embodiment, many similar variations are arranged thereupon.If those skilled in the art all should belong to protection scope of the present invention from all distortion that content disclosed by the invention directly derives or associates.
Claims (14)
1. a straightness of pipe end of drill detects equipment for straightening online, for detection of directly spending with the pipe end of aligning drilling rod to be measured, it is characterized in that, comprising:
One straightener (1), it comprises: an aligning support (11); One is located at the top (12) on the aligning support; One actuating unit (13) that is connected with described top (12); One pressure sensor (14) that is connected with described actuating unit (13); The one aligning displacement transducer (15) that is connected with described top (12);
One is located at the positioning jig device (2) on straightener (1), and it is located at the position relative with described top (12) on described aligning support (11), and described positioning jig device (2) comprising: a fixture drive motors (21); One power transmission shaft (22) that is connected with described fixture drive motors (21), described power transmission shaft (22) be arranged in parallel with drilling rod; Two clamping fixture seats (23), symmetry are fixed on described power transmission shaft (22); Two fixtures (24) are respectively with corresponding being fixedly connected with of each clamping fixture seat (23);
Some pay-offs (3) are located at described straightener (1) successively along the axial throughput direction of drilling rod other, and wherein each pay-off (3) includes rotate in a circumferential direction device (31) and an axial conveying device (32);
One PLC electric-control system is electrically connected to respectively with described pay-off (3), straightener (1) and positioning jig device (2);
One industrial computer is connected with described PLC electric-control system;
One lifting drive (8) is located on described straightener (1), is positioned at the top of drilling rod to be measured, and described lifting drive (8) is electrically connected to the PLC electric-control system;
One pipe end straightness detecting device (9) is fixedly connected with described lifting drive (8), is positioned at the top of drilling rod to be measured, and described pipe end straightness detecting device (9) also is electrically connected to described PLC electric-control system.
2. straightness of pipe end of drill as claimed in claim 1 detects equipment for straightening online, it is characterized in that, in described positioning jig device (2), the clamping face of two fixtures (24) is the high low platform terrace, described each high low platform terrace includes: a high clamping face (241) and a low clamping face (242), described low clamping face (242) is arranged at the inboard of high clamping face (241), described high clamping face (241) is equipped with a position-sensing switch (243) with the critical place of corresponding low clamping face (242), described two position-sensing switches (243) all are connected with the PLC electric-control system.
3. straightness of pipe end of drill as claimed in claim 1 detects equipment for straightening online, it is characterized in that, described each pay-off (3) also comprises: a holder (33), its upper surface has a chute (331), described chute (331) and vertical setting of the axial throughput direction of drilling rod; One translation support (34), its bottom is provided with a slide block (35), described slide block (35) is located in described chute (331), and the described device that rotates in a circumferential direction (31) and axial conveying device (32) all are located on translation support (34); Translation support (34) in described each pay-off (3) all is connected with a translation carriage drive element (7) by a connection piece (6), and described translation carriage drive element (7) is electrically connected to described PLC electric-control system.
4. straightness of pipe end of drill as claimed in claim 3 detects equipment for straightening online, it is characterized in that, described each translation support (34) includes:
One right angle frame (341) comprises a base plate and a vertical panel, and described slide block (35) is located at the bottom of base plate, and described axial conveying device (32) is located at the upper end of vertical panel;
One oscillating deck (342), the upper articulation of its left end and described vertical panel, the described device that rotates in a circumferential direction (31) is located at the right-hand member of oscillating deck (342);
One wedge (343), its inclined plane are located on described base plate up slidably, and the sliding trace of described wedge (343) is parallel with the axial throughput direction of drilling rod;
One supporting (344), its upper end is fixedly connected with the right-hand member lower surface of described oscillating deck (342), and its lower end is connected with a bearing (345), and described bearing (345) is held on the inclined plane of described wedge (343);
One pull bar (346) is fixedly connected with described wedge (343);
The pull bar of described each translation support (346) all is connected with a pull bar driving element (10), and described pull bar driving element (10) is electrically connected to the PLC electric-control system.
5. straightness of pipe end of drill as claimed in claim 1 detects equipment for straightening online, it is characterized in that, described lifting drive (8) comprising:
One supporting seat (81) is fixed on described straightener (1);
One motor (82) is fixed on described supporting seat (81);
Two drive sprockets (83), relatively be located on described supporting seat (81), and be connected with described motor (82) by same chain wheel transmission shaft (84), described each drive sprocket (83) is all by a chain (85) and the corresponding connection of a pair of driven sprocket (86);
Four crank arms (87), with corresponding being fixedly connected with of each driven sprocket (86), described each crank arm (87) is set parallel to each other respectively;
One lifting frame (88), its left and right both sides support are fixedly connected with the crank arm (87) of the corresponding connection of two pairs of driven sprockets (86) respectively, and front support and the described pipe end of described lifting frame (88) are directly spent
Checkout gear (9) is fixedly connected with.
6. straightness of pipe end of drill as described in any one in claim 1-5 detects equipment for straightening online, it is characterized in that, described pipe end straightness detecting device (9) comprising:
The measurement bay of one strip (91) be arranged in parallel along drilling rod axial direction and drilling rod, and described measurement bay (91) is fixedly connected with lifting drive (8);
Two V-types are ridden plate (92), Open Side Down arranges, described each V-type is ridden and is equipped with a synchronous pinch roller (93) on plate (92), the upper equal correspondence of described each synchronous pinch roller (93) is provided with the encoder (94) that rotates in a circumferential direction, and the described encoder (94) that respectively rotates in a circumferential direction all is connected with the PLC electric-control system;
Two V-types are ridden plate driving element (95), ride the corresponding connection of plate (92) with each V-type respectively, described each V-type is ridden plate driving element (95) symmetry and is fixed on described measurement bay (91), and described each V-type is ridden plate driving element (95) and also all is electrically connected to the PLC electric-control system;
Some displacement transducers (96) are arranged in the lower surface of measurement bay (91) along described measurement bay length direction, described each displacement transducer (96) all is connected with the PLC electric-control system;
Four limit switches, be respectively the first, second, third and the 4th limit switch that sets gradually along measurement bay, wherein the first limit switch (97), the second limit switch (98) are located at the front end lower surface of described measurement bay (91), the 3rd limit switch (99), the 4th limit switch (910) are located at the rear end lower surface of described measurement bay (91), and described four limit switches all are connected with the PLC electric-control system.
7. straightness of pipe end of drill as claimed in claim 6 detects equipment for straightening online, it is characterized in that, described pipe end straightness detecting device (9) also comprises:
One fixed mount (911) is located between described lifting drive (8) and measurement bay (91);
Pair of flexible assembly (912), its upper end is connected with described fixed mount (911), and its lower end is connected with described measurement bay (91), in order to realize the Relative Floating of measurement bay (91) and fixed mount (911).
8. straightness of pipe end of drill as claimed in claim 6 detects equipment for straightening online, it is characterized in that, described displacement transducer (96) is non-contact displacement transducer.
9. a straightness of pipe end of drill detects method for aligning online, it is characterized in that, comprises the steps:
1) beginning;
2) PLC electric control system controls lifting drive (8) drive pipe end straightness detecting device (9) drops to the detection station;
3) the axial conveying device of PLC electric control system controls (32) is carried drilling rod along the drilling rod axial direction, and pipe end straightness detecting device (9) detects the initial bending amount δ of each measurement point of drilling rod front end
1, δ
2..., δ
n, and transmit it to the PLC electric-control system;
4) the PLC electric-control system is with the initial bending amount δ of each measurement point of drilling rod front end
1, δ
2..., δ
nTransfer to industrial computer, industrial computer calculates respectively the initial bending amount δ of each measurement point of drilling rod front end
1, δ
2..., δ
nWith default standard straight degree δ
0Difference Q
1, Q
2..., Q
nIf, Q
1, Q
2..., Q
nAll be less than or equal to 0 direct execution in step 6), if Q
i＞0, industrial computer is with the positive difference Q of maximum
maxTransfer to PLC electric-control system execution in step 5), 1≤i≤n;
5) straightener (1) according to the control of PLC electric-control system to the maximum positive difference Q of drilling rod front end
maxCorresponding measurement point is aligned;
6) PLC electric control system controls pipe end straightness detecting device (9) leaves the drilling rod surface, the axial conveying device of PLC electric control system controls (32) continues to be fed forward drilling rod, and pipe end straightness detecting device (9) detects the initial bending amount δ of each measurement point of drilling rod rear end
1, δ
2..., δ
n, and transmit it to the PLC electric-control system;
7) the PLC electric-control system is with the initial bending amount δ of each measurement point of drilling rod rear end
1, δ
2..., δ
nTransfer to industrial computer, industrial computer calculates respectively the initial bending amount δ of each measurement point of drilling rod rear end
1, δ
2..., δ
nWith default standard straight degree δ
0Difference Q
1, Q
2..., Q
nIf, Q
1, Q
2..., Q
nAll be less than or equal to 0, direct execution in step 9), if Q
i＞0, industrial computer is with the positive difference Q of maximum
maxTransfer to PLC electric-control system execution in step 8), 1≤i≤n;
8) straightener (1) according to the control of PLC electric-control system to the drilling rod maximum positive difference Q in rear end
maxCorresponding measurement point is aligned;
9) finish.
10. straightness of pipe end of drill as claimed in claim 9 detects method for aligning online, it is characterized in that, described step 3) comprises:
3a) the drilling rod front end enters below measurement bay (91), second limit switch (98) of measurement bay (91) front end detects the backward PLC electric-control system of drilling rod transmission " material is arranged " signal, and the PLC electric-control system receives after " material is arranged " signal of the second limit switch (98) transmission Control Shaft and slows down to conveying device (32) and carry drilling rod;
3b) first limit switch (97) of measurement bay (91) front end detects the backward PLC electric-control system of drilling rod transmission " material is arranged " signal, and after the PLC electric-control system receives " material is arranged " signal of the first limit switch (97) transmission, Control Shaft stops carrying drilling rod to conveying device (32);
3c) PLC electric control system controls V-type is ridden plate driving element (95) and is driven V-type and ride plate (92) and descend and ride over the drilling rod front end surface until V-type is ridden plate (92), then the PLC electric control system controls device (31) that rotates in a circumferential direction drives the drilling rod rotation, and being located at N displacement transducer (96) on measurement bay (91), corresponding to detect apart from drilling rod front end end distance be X
1, X
2..., X
nThe initial bending amount δ of each measurement point
1, δ
2..., δ
nAnd the result that will record transfers to the PLC electric-control system, the encoder (94) that rotates in a circumferential direction detects the angle that drilling rod turns over and also angle signal is transferred to the PLC electric-control system, after drilling rod turns over 360 degree, and PLC electric control system controls device (31) drilling rod that stops the rotation that rotates in a circumferential direction.
11. straightness of pipe end of drill as claimed in claim 10 detects method for aligning online, it is characterized in that, described step 5) or step 8) specifically comprise:
A) the PLC electric-control system controls according to the angle signal of encoder (94) transmission that rotates in a circumferential direction device (31) rotary drill rod that rotates in a circumferential direction, and makes position to be aligned along the center of the top (12) of circumferential direction rotary alignment straightener (1);
B) the axial conveying device of PLC electric control system controls (32) is adjusted the axial location of drilling rod, control simultaneously the axial location of fixture drive motors (21) the adjustment fixture (24) in positioning jig device (2), make position to be aligned in axial direction be positioned at the center of two fixtures (24);
C) the translation support (34) of PLC electric control system controls pay-off (3) is together with the direction translation of drilling rod to close two fixture clamping faces, after being located at position-sensing switch (243) on two fixtures (24) and drilling rod being detected, to PLC electric-control system transmission " material is arranged " signal, PLC electric control system controls translation support (34) stops action;
D) industrial computer calculates the top amount of feeding setting value of straightener (1), and the computation model of top amount of feeding setting value λ is:
In following formula: E
0Be elastic modelling quantity; G is the yield strength of drilling rod; δ
maxWait to align initial bending amount a little, its displacement transducer by correspondence records; D is the drilling rod external diameter; L is the spacing of two fixtures; T is the wall thickness of drilling rod; b
0, b
1, b
2Be respectively linear regression coeffficient, b
0Be 0.8～1.2, b
1Be 0.4～0.7, b
2Be 0.6～0.8;
E) actuating unit (13) of PLC electric control system controls straightener (1) promotes top (12) action, until top (12) touches the drilling rod surface;
F) industrial computer will come directly towards the amount of feeding and transfer to the PLC electric-control system, PLC electric control system controls top (12) hold out against continue to march forward behind the drilling rod surface to, aligning displacement transducer (15) detects the actual amount of feeding in top in real time, and real-time Transmission is to the PLC electric-control system;
G) when the actual amount of feeding in top equaled to come directly towards amount of feeding setting value, PLC electric control system controls top (12) resetted.
12. straightness of pipe end of drill as claimed in claim 11 detects method for aligning online, it is characterized in that, described step 6) specifically comprises:
6a) PLC electric control system controls V-type is ridden plate (92) rise, leave the drilling rod front end surface, then the axial conveying device of PLC electric control system controls (32) continues to be fed forward drilling rod, after the 4th limit switch (910) on measurement bay (91) can't detect drilling rod, send " without material " signal to the PLC electric-control system, after the PLC electric-control system received the 4th limit switch (910) transmission " without material " signal, Control Shaft slowed down to conveying device (32) and carries drilling rod;
After 6b) the 3rd limit switch (99) on measurement bay (91) can't detect drilling rod, send " without material " signal to the PLC electric-control system, after the PLC electric-control system received the 3rd limit switch (99) transmission " without material " signal, Control Shaft stopped carrying drilling rod to conveying device (32);
6c) PLC electric control system controls V-type is ridden plate driving element (95) and is driven V-type and ride plate (92) and descend and ride over drilling rod until V-type is ridden plate (92), the PLC electric control system controls device (31) that rotates in a circumferential direction drives the drilling rod rotation, and being located at N displacement transducer (96) on measurement bay (91), corresponding to detect apart from end, drilling rod rear end distance be X
1, X
2..., X
nThe initial bending amount δ of each measurement point
1, δ
2..., δ
nAnd the result that will record transfers to the PLC electric-control system, the encoder (94) that rotates in a circumferential direction detects the angle that drilling rod turns over and also angle signal is transferred to the PLC electric-control system, after drilling rod turns over 360 degree, and PLC electric control system controls device (31) drilling rod that stops the rotation that rotates in a circumferential direction.
13. straightness of pipe end of drill as claimed in claim 12 detects method for aligning online, it is characterized in that, in described each step, when the axial conveying device of PLC electric control system controls (32) is carried drilling rod along the drilling rod axial direction, the PLC electric-control system is first controlled pull bar driving element (10) and is driven wedge (343) slip, make oscillating deck (342) be rocked to axial conveying device (32) higher than the position of the device that rotates in a circumferential direction (31), PLC electric-control system Control Shaft is again carried drilling rod to conveying device (32).
14. straightness of pipe end of drill as claimed in claim 13 detects method for aligning online, it is characterized in that, in described each step, when the PLC electric control system controls rotates in a circumferential direction device (31) rotary drill rod, the PLC electric-control system is first controlled pull bar driving element (10) and is driven wedge (343) slip, make oscillating deck (342) be rocked to the device that rotates in a circumferential direction (31) higher than the position of axial conveying device (32), the PLC electric-control system is controlled the device that rotates in a circumferential direction (31) rotary drill rod again.
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|---|---|---|---|
| CN 201010239151 CN102335682B (en) | 2010-07-28 | 2010-07-28 | Online detecting and straightening equipment and method of straightness of pipe end of drill pipe |
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|---|---|---|---|
| CN 201010239151 CN102335682B (en) | 2010-07-28 | 2010-07-28 | Online detecting and straightening equipment and method of straightness of pipe end of drill pipe |
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| CN112958709B (en) * | 2021-05-17 | 2021-07-20 | 南通市力行机械制造有限公司 | Online straightening device for expanding steel pipe |
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