Automatic closed derusting machine of pipeline repaired mouth
The present invention relates to a kind of automatic closed derusting machine of pipeline repaired mouth, belong to oil and gas pipeline construction technique field, is a kind of automatic closed derusting machine for pipe surface process in Pipeline joint anticorrosion process.
Along with China's energy industry continue, fast-developing, long-distance oil & gas pipeline becomes the important way of energy safeguard.In Oil & Gas Pipeline Construction Project, for ensureing the working life of pipeline, the anticorrosion of joint coating on pipeline section seems particularly important, and the pipe surface Disposal quality in preservative process directly affects the working life of anticorrosive coat.In current pipeline construction, the pipe surface process of repaired mouth section is the open derusting by sandblasting of manual operation, bring that environmental pollution is serious, labor strength increases, dust is to the serious waste of the injury of workman's respiratory tract, sand material, the series of problems such as surface cleanness is uneven, procedure quality is uncontrollable, cause repaired mouth quality not good, then reduce the working life of pipeline, increase the potential safety hazard in pipeline operation.Automatic closed derusting machine of pipeline repaired mouth solve an above-mentioned difficult problem with succeeding in developing.Test proves, this rust cleaning function greatly reduce the labor intensity of workman, environmental nonpollution, saving sand material, surface cleanness evenly, procedure quality can control arbitrarily, and repaired mouth quality is ensured.
Summary of the invention
The object of the present invention is to provide a kind of automatic closed derusting machine of pipeline repaired mouth, be mainly used in solving that artificial open derusting by sandblasting operate that the environmental pollution that brings is serious, labor strength increases, dust to series of problems such as the injury of workman's respiratory tract, the serious waste of sand material, surface cleanness inequality, procedure quality are uncontrollable, repaired mouth quality is ensured.
Technology contents of the present invention is as follows:
Automatic closed derusting machine of pipeline repaired mouth mainly comprises four-wheel drive traveling gear, Destaticizing device, horizontal walking device and horizontal walking device position-limit mechanism etc.;
Four-wheel drive traveling gear is that a multi-clove type changes adapter ring shape switching structure, and the annular slab repeatedly being connect folding by the two panels multi-clove type connected with running shaft is configured to, and Rapid clamping joint is located at the hole place of annular grillage; Between annular grillage, be provided with and support horizontal walking device location and powerdriven guiding polished rod and tooth bar, be also provided with strut simultaneously; Strut is provided with the train of reduction gears simultaneously connecting motor and live axle; The constant speed gear train be connected with live axle connects floating type driving wheel and shell fragment simultaneously, and shell fragment is then connected with the shell fragment block be positioned on annular grillage; Driven double reverse wheel is located on annular grillage.
Destaticizing device is located on four-wheel drive traveling gear.
On the base plate of horizontal walking device, be provided with the V shaped wheel group with the stressed joint of direct light bar cramp; Base plate is connected and fixed plate by connecting rod, and spray gun is locked by fixed plate and adjustability clamp; The horizontal drive force output that base plate is provided with complete machine locking protection mechanism, point contact type position limit switch and is connected with tooth bar.
The position-limit mechanism of horizontal walking device is located on the annular grillage of four-wheel drive traveling gear.
Four-wheel drive traveling gear effectively can overcome " skiddings " that driving wheel and pipeline corrosion protection interlayer cause because of frictional force deficiency and the difficulty such as driving force is not enough, and the guarantee derusting machine operation that rotates in a circumferential direction completes smoothly.Horizontal walking device realizes Quick-clamped and the transverse movement of spray gun by the clamping and positioning of V shaped wheel and the simple and direct handling of spray gun, ensures derusting machine laterally operation working properly.
Inventive pipeline repaired mouth automatic closed derusting machine can run according to the control program of setting automatically, and complete the facing operation of pipeline smoothly, the pipe surface turbidity test after process meet class requirement completely, and the used time is shorter, effectively shortens construction period.The technology of the present invention successfully can solve the series of problems caused in artificial open derusting by sandblasting operating process, significantly can reduce labor intensity, free from environmental pollution, saves sand material, fully ensures repaired mouth quality of processing.
Accompanying drawing explanation
Fig. 1 is automatic closed derusting machine of pipeline repaired mouth schematic diagram.
Fig. 2 is automatic closed derusting machine of pipeline repaired mouth four-wheel drive traveling gear schematic diagram when closing.
Fig. 3 is automatic closed derusting machine of pipeline repaired mouth four-wheel drive traveling gear schematic diagram when opening.
Fig. 4 is Destaticizing device schematic diagram.
Fig. 5 is transverse running device for pipeline joint coating closed automatic derusting machine schematic diagram.
Fig. 6 is automatic closed derusting machine of pipeline repaired mouth complete machine locking protection mechanism schematic diagram.
Fig. 7,8 is left limit block schematic diagram in horizontal walking device position-limit mechanism.
Fig. 9 is positive stop strip schematic diagram in horizontal walking device position-limit mechanism.
Figure 10 is that automatic closed derusting machine of pipeline repaired mouth is placed in and treats repaired mouth pipeline section schematic diagram.
Referring to figs. 1 through Figure 10, embodiments of the invention are described.
Four-wheel drive traveling gear 1 of the present invention to change adapter ring shape switching structure for three-clove style, the annular grillage 8 repeatedly being connect folding by the two panels three-clove style connected with running shaft 9 is formed, running shaft 9 connects annular grillage 8 by bolt, and joint is provided with copper packing, from wearing and tearing during to make cast structural folding.The hanger type Rapid clamping joint 6 of locking spring 5 is contained in the hole place of annular grillage 8, treats repaired mouth pipeline section for being placed in fast by four-wheel drive traveling gear 1.Between annular grillage 8, install and support that horizontal walking device 3 is located and powerdriven cylindrical guiding polished rod 14 and tooth bar 15, also install to be threaded simultaneously, for the strut 10 of firm cast structural.On strut 10, installing connects the train of reduction gears 7 of motor 21 and live axle 20, is delivered to live axle 20 after the power that motor 21 exports is through train of reduction gears 7 double reduction, with can control mechanism rotating speed better.The constant speed gear train 18 be connected with live axle 20 connects floating type driving wheel 19 and shell fragment 17 simultaneously, shell fragment 17 is connected with the shell fragment block 16 be fixed on inside annular grillage 8, shell fragment 17, for applying pretightening force to floating type driving wheel 19, to produce enough frictional force, prevents rust cleaning from skidding.Driven double reverse wheel 11 is night bolt formula structure, is contained in inside annular grillage 8, above establishes commutation handle 12 and commutation handle 13, carries commutation handle 13 on during commutation, pull commutation handle 12, by reverse wheel half-twist simultaneously.Under the driving of four floating type driving wheels 19 and the assistance of four driven double reverse wheels 11, drive traveling gear 1 to achieve to rotate in a circumferential direction and move axially, 8 wheel Dimensionss are consistent, and interior is aluminium, wrap up in rubber outward, and wheel face is carved with the decorative pattern strengthening frictional force.
Destaticizing device 2 is contained on the strut 10 of driving traveling gear 1, its conduction steel wire 22 is located on lower fixed block 25, and be connected on strut 10 with the upper fixed block 24 of band terminal 23, the head of the conduction steel wire 22 in working procedure is kept in touch with pipe surface all the time; Wire one end connects terminal 23, and the other end ground connection, to ensure that electrostatic is thoroughly removed.
Below base plate 26 in horizontal walking device 3, install the V shaped wheel group 36 that four clampings connect guiding polished rod 14, it is taken turns sheet and adopts polyformaldehyde material to make, and in order to the fretting wear reduced and steel leads between polished rod 14, increases the service life.Base plate 26 is connected and fixed plate 30 by connecting rod 28, spray gun 29 is contained in fixed plate 30 central authorities and is locked by adjustable clamp 27.On base plate 26, install the horizontal drive force output be made up of motor 31, constant speed gear train 32 and worm and gear gear train 33, wherein worm and gear gear train 33 is connected with tooth bar 15.Worm and gear has self-locking action, does not move during to guarantee that horizontal walking device 3 quits work by External Force Acting.Base plate 26 also installs complete machine locking protection mechanism 35, when shifting for derusting machine work, horizontal walking device 3 is locked on guiding polished rod 14, avoids external impacts.Install the point contact type position limit switch 34 be made up of bolt 37, contact 38, roller 39, contact 40 and guide line joint 41 in base plate 26 side, it coordinates with limiting stopper 42,44, realizes the disconnection of travel control system with closed.
Positive stop strip 43 in position-limit mechanism 4 is contained between annular grillage 8 by bolt, positive stop strip 43 has groove, slidably left limit block 42 and right limit block 44 is inlayed in groove, limiting stopper upper surface has constant slope, it coordinates with point contact type position limit switch 34, realizes limiting the whereabouts position of horizontal walking device 3 and spacing adjustment thereof.
Installation and the operation of derusting machine of the present invention are as follows:
First as requested Destaticizing device 2, horizontal walking device 3, position-limit mechanism 4 are installed on the relevant position of four-wheel drive traveling gear 1, composition overall structure as shown in Figure 1.Open rapid pipe joint 6, opening of 4 wheel driven traveling gear 1 is made to open certain angle with part around running shaft 9, driven double reverse wheel 11 is placed in the mode on pipeline top, derusting machine is buckled in and treats on repaired mouth pipeline section 47, derusting machine center line is aimed at weld seam 46, then, is locked with rapid pipe joint 6, make floating type driving wheel 19, driven double reverse wheel 11 contacts completely with pipeline anticorrosion coating 45, and adjust shell fragment 17 certain pretightening force is set.Install ready after, be electrified, motor 21 operates, power reaches live axle 20 through train of reduction gears 7, and after reach floating type driving wheel 19 through constant speed gear train 18, under the effect of shell fragment 17, operating floating type driving wheel 19 well can adapt to the out of roundness of pipeline and the Roughness of pipe surface.Motor 31 operates simultaneously, and power reaches tooth bar 15 through constant speed gear train 32, worm and gear gear train 33, then drives horizontal walking device 3 to move along guiding polished rod 14.Open electric control system, the circumferential stepping that can realize automatic closed derusting machine of pipeline repaired mouth 48 is rotated and the lasting rotation of circumference, and rotating width can adjust arbitrarily in the scope being less than spray gun 29 Effective face width, ensures that the continuous nothing of rust cleaning is omitted.Horizontal walking device 3 moves along guiding polished rod 14, when moving to the left side of joint coating on pipeline section 47, the roller 39 of position limit switch 34 and the contact of incline plane of left limit block 42, promote contact 38 and force contact 40 to bounce back, be communicated with the joint of position limit switch 34, control system responds, and horizontal walking device 3 stops left-hand moving, and moves round about, when moving to the right side of joint coating on pipeline section 47, limit its dextrad by right limit block 44 to move, and so forth, complete the transverse direction rust cleaning engineering of automatic derusting machine 48.
After one mouth of pipe rust cleaning terminates, by control system, automatic derusting machine 48 is resetted, then open rapid pipe joint 6, make the folding part of four-wheel drive traveling gear 1 open certain angle around running shaft 9, to ensure that this device can be piled by pipe smoothly.On carry commutation handle 13, pull commutation handle 12 simultaneously, by driven double reverse wheel 11 half-twist, make its direction of travel consistent with the axial direction of pipeline 49, then derusting machine 48 is impelled to move along pipeline 49 by external force, after arriving next repaired mouth position, road, repeat above opening and closing movement, to realize the operation again of derusting machine.