The symmetrical crank cranking-block flexible duct of rotary type inwall supporting arrangement
Technical field:
The present invention relates to, for discarded coastal waters offshore drilling well casing and drilling platforms supporting standpipe excision equipment technical field thereof, specifically relate to the symmetrical crank cranking-block flexible duct of a kind of rotary type inwall supporting arrangement.
Background technology:
In prior art, discarded coastal waters offshore drilling well casing and drilling platforms supporting standpipe thereof adopt traditional processing method: cast off once and for all, the problem of its existence is that the pipe abandon in coastal waters can affect maritime traffic safety; Adopt artificial way to be excised along the outer wall of pipe abandon, the problem of its existence is to remove the low and thoroughly excision of efficiency, generally can leave under water remnants, also can exert an influence safely to maritime traffic; Adopt the method for explosion to remove, the problem of its existence is to affect ecological, contaminated environment; At present, China's national correlation department requires must be the pipe abandon in coastal waters in the situation that free from environmental pollution, and ground 3m is above under water removes pipe abandon, and traditional way can not meet the demands.
Summary of the invention:
The symmetrical crank cranking-block flexible duct of a kind of rotary type inwall supporting arrangement that the present invention be directed to defect of the prior art and provide, thus efficiently solve the problems of the prior art.
The present invention solves the scheme that its technical problem adopts: the symmetrical crank cranking-block flexible duct of described rotary type inwall supporting arrangement, be characterized in comprising indexing mechanism and inwall supporting device, described indexing mechanism comprises the transposition fixed axis, transposition fixed axis top is provided with the indexing mechanism fixed disk, the indexing mechanism AC servo motor is fixed on the indexing mechanism fixed disk by the indexing mechanism decelerator, be provided with the little reduction gearing of indexing mechanism on the power output shaft of indexing mechanism decelerator, the indexing mechanism big retarding gear that the little reduction gearing of indexing mechanism puts outward with indexing mechanism is meshed, described inwall supporting device comprises the inwall supporting device AC servo motor fixed disk that is arranged on indexing mechanism overcoat bottom, inwall supporting device AC servo motor is fixed on inwall supporting device AC servo motor fixed disk by inwall supporting device decelerator, described transposition fixed axis bottom is symmetrically arranged with two cranks, each crank is connected with swinging block by connecting axle, the swinging block front end is provided with supporting rollern, be provided with the little reduction gearing of inwall supporting device on the power output shaft of inwall supporting device decelerator, the little reduction gearing of inwall supporting device is meshed with the inwall supporting device big retarding gear on being arranged on crank.
Described indexing mechanism overcoat is arranged on the transposition fixed axis by angular contact ball bearing.
Also be provided with the spacing bearing pin of transposition on described indexing mechanism fixed disk, the spacing bearing pin of transposition is inserted in the cannelure on indexing mechanism big retarding gear, and the cannelure angle is less than 180 °, plays the effect of transposition stroke limit.
Described indexing mechanism AC servo motor drives the little reduction gearing of indexing mechanism to rotate by the indexing mechanism decelerator, to move with transmission of power to indexing mechanism big retarding gear, indexing mechanism big retarding gear is fixed on indexing mechanism and puts outward, thereby drive whole indexing mechanism, rotates.
Described supporting rollern is arranged on the swinging block front end by roller shaft, is provided with the sinking support spring on roller shaft, and swinging block front end also correspondence is provided with supporting rollern position adjustment axle.Supporting rollern is done gyration along inner-walls of duct in the time can making whole mechanism at the stretching inwall; The sinking support spring can be regulated the deviation from circular from that adapts to pipeline inner-walls of duct in manufacture process; The contact angle of axial adjustment supporting rollern and inner-walls of duct is adjusted in the supporting rollern position.
Go back correspondence on described inwall supporting device AC servo motor fixed disk and be provided with swinging block axle and swinging block stroke limit bearing pin.Swinging block stroke limit bearing pin restriction swinging block, to the stroke of external support, meets accident with prevention.
Described inwall supporting device AC servo motor drives the little reduction gearing of inwall supporting device to rotate by inwall supporting device decelerator, to move with transmission of power to inwall supporting device big retarding gear, inwall supporting device big retarding gear and two symmetrically arranged cranks are fixedly linked, crank is arranged on the transposition fixed axis by crank mount pad and bearing, and crank drives corresponding swinging block and launches the inner-walls of duct stretching outside swinging block is axial with supporting rollern.
Described inwall supporting device AC servo motor fixed disk is fixed on indexing mechanism overcoat lower end.
The present invention passes through technique scheme, there is following effect: the symmetrical crank cranking-block flexible duct of described a kind of rotary type inwall supporting arrangement, it has realized that by inwall supporting device and corresponding indexing mechanism are set the pipe abandon in coastal waters is in the situation that free from environmental pollution, ground 3m is above under water effectively removes pipe abandon, its cutting is stable, efficiency is high, safe and convenient to use, strong adaptability.
The accompanying drawing explanation:
Fig. 1 is structure principle chart of the present invention;
Fig. 2 is the structure principle chart of looking up of Fig. 1 of the present invention;
Fig. 3 is the A-A place sectional structure schematic diagram of Fig. 2 of the present invention;
Fig. 4 is the B-B place sectional structure schematic diagram of Fig. 1 of the present invention.
Shown in figure: 1, indexing mechanism fixed disk; 2, indexing mechanism AC servo motor; 3, indexing mechanism decelerator; 4, the little reduction gearing of indexing mechanism; 5, indexing mechanism big retarding gear; 6, the spacing bearing pin of transposition; 7, indexing mechanism overcoat; 8, angular contact ball bearing; 9, transposition fixed axis; 10, inwall supporting device AC servo motor; 11, inwall supporting device decelerator; 12, the little reduction gearing of inwall supporting device; 13, inwall supporting device big retarding gear; 14, crank; 15, connecting axle; 16, swinging block; 17, sinking support spring; 18, axle is adjusted in the supporting rollern position; 19, supporting rollern; 20, roller shaft; 21, swinging block axle; 22, swinging block stroke limit bearing pin; 23, inwall supporting device AC servo motor fixed disk; 24. crank mount pad.
The specific embodiment
Below in conjunction with the most preferred embodiment shown in accompanying drawing, be described in further detail
As shown in Figures 1 to 4, the symmetrical crank cranking-block flexible duct of described rotary type inwall supporting arrangement, be characterized in comprising indexing mechanism and inwall supporting device, described indexing mechanism comprises transposition fixed axis 9, transposition fixed axis 9 tops are provided with indexing mechanism fixed disk 1, indexing mechanism AC servo motor 2 is fixed on indexing mechanism fixed disk 1 by indexing mechanism decelerator 3, be provided with the little reduction gearing 4 of indexing mechanism on the power output shaft of indexing mechanism decelerator 3, the little reduction gearing 4 of indexing mechanism is meshed with the indexing mechanism big retarding gear 5 on indexing mechanism overcoat 7, described inwall supporting device comprises the inwall supporting device AC servo motor fixed disk 23 that is arranged on indexing mechanism overcoat 7 bottoms, inwall supporting device AC servo motor 10 is fixed on inwall supporting device AC servo motor fixed disk 23 by inwall supporting device decelerator 11, described transposition fixed axis 9 bottoms are symmetrically arranged with two cranks 14, each crank is connected with swinging block 16 by connecting axle 15, swinging block 16 front ends are provided with supporting rollern 19, be provided with the little reduction gearing 12 of inwall supporting device on the power output shaft of inwall supporting device decelerator 11, the little reduction gearing 12 of inwall supporting device is meshed with the inwall supporting device big retarding gear 13 on being arranged on crank 14.
Further, described indexing mechanism overcoat 7 is arranged on transposition fixed axis 9 by angular contact ball bearing 8.
Further, also be provided with the spacing bearing pin 6 of transposition on described indexing mechanism fixed disk 1, the spacing bearing pin 6 of transposition is inserted in the cannelure on indexing mechanism big retarding gear 5, and the cannelure angle is less than 180 °, plays the effect of transposition stroke limit.
Further, described indexing mechanism AC servo motor 2 drives the little reduction gearing 4 of indexing mechanism to rotate by indexing mechanism decelerator 3, to move with transmission of power to indexing mechanism big retarding gear 5, indexing mechanism big retarding gear 5 is fixed on indexing mechanism overcoat 7, thereby drive whole indexing mechanism, rotates.
Further, described supporting rollern 19 is arranged on swinging block 16 front ends by roller shaft 20, is provided with sinking support spring 17 on roller shaft 20, and swinging block 16 front ends also correspondence are provided with supporting rollern position adjustment axle 18.Supporting rollern 19 is done gyration along inner-walls of duct in the time can making whole mechanism at the stretching inwall; Sinking support spring 17 can be regulated the deviation from circular from that adapts to pipeline inner-walls of duct in manufacture process; The contact angle that axle 18 is adjusted supporting rollern and inner-walls of duct is adjusted in the supporting rollern position.
Further, go back correspondence on described inwall supporting device AC servo motor fixed disk 23 and be provided with swinging block axle 21 and swinging block stroke limit bearing pin 22.Swinging block stroke limit bearing pin 22 restriction swinging blocks, to the stroke of external support, meet accident with prevention.
Further, described inwall supporting device AC servo motor 10 drives the little reduction gearing 12 of inwall supporting device to rotate by inwall supporting device decelerator 11, to move with transmission of power to inwall supporting device big retarding gear 13, inwall supporting device big retarding gear 13 and two symmetrically arranged cranks 14 are fixedly linked, crank 14 is arranged on the transposition fixed axis by crank mount pad 24 and bearing, and crank 14 drives corresponding swinging block 16 and outwards launches the inner-walls of duct stretching along swinging block axle 21 with supporting rollern 19.
Further, described inwall supporting device AC servo motor fixed disk 23 is fixed on indexing mechanism overcoat 7 lower ends.
The symmetrical crank cranking-block flexible duct of described rotary type inwall supporting arrangement, during use, at first it launch to inner-walls of duct under the driving of inwall supporting device servomotor, when the automatic stop motion of mechanism's stretching inner-walls of duct rear motor (this servomotor adopts the Torque Control mode); Then indexing mechanism AC servo motor lead agency slew gear is done gyration, and various inner-walls of duct machining tools can be installed on the supporting device swinging block, to complete the various processing to inner-walls of duct.By ship, pipe abandon is forgotten about it after proposing pipe abandon until the pipe abandon device for excising, hang out the water surface and transport and get final product.