A kind of internal welding machine air guide cable transmission systems based on hollow cylinder
Technical field
The present invention relates to Oil-gas Pipeline Construction technical field, particularly a kind of internal welding machine air guide cable transmission systems based on hollow cylinder.
Background technology
At present, automatic welding root bead equipment conventional in Oil-gas Pipeline Construction is internal welding machine, needs air guide cable that power supply and protection gas are sent to welding unit enforcement welding when welding.The form of laying of existing internal welding machine air guide cable is outside discrete type structure, as depicted in figs. 1 and 2, one end of air guide cable 3 is connected with pneumoelectric splicing ear 4, the other end of air guide cable 3 is by pulley 2 through being connected with welding unit 6 the swollen boots support bar 5 of mouthpart is rear, and pulley 2 is connected on spider in discrete shape mode by spring 1.In welding process, under the tractive that air guide cable 3 rotates at welding unit 6, between air guide cable 3 and swollen boots support bar 5, can produce friction, can cause thus air guide cable bad to occur electric leakage, leak gas and weld many situations such as unstable, seriously affected welding quality, increased construction cost, welding efficiency is reduced greatly.
Summary of the invention
In order to solve the wearing and tearing of air guide cable, the electric leakage gas leakage occurring in existing internal welding machine welding process and to weld the problems such as unstable, the invention provides a kind of internal welding machine air guide cable transmission systems based on hollow cylinder, described system comprises internal welding machine centrum mechanism, center preloader, air guide cable, hollow tensioner cylinder, welding unit and terminal pad; On described terminal pad, be provided with gathering sill; Described center preloader is connected to internal welding machine centrum mechanism front end; Described terminal pad is connected in internal welding machine centrum mechanism axis part by hollow tensioner cylinder; Described welding unit be take hollow tensioner cylinder and is evenly distributed in internal welding machine centrum mechanism as axle center; Described air guide cable one end is connected on the preloader of center, and the other end penetrates hollow tensioner cylinder core and is connected with welding unit via the gathering sill on terminal pad; Described center preloader converges in the constraint of air guide cable the front end of hollow tensioner cylinder; Described center preloader, air guide cable, hollow tensioner cylinder, welding unit and terminal pad are fixedly mounted in internal welding machine centrum mechanism.
Described center preloader comprises installs gripper shoe, guide post, insulating flange, pneumoelectric gatherer, air guide cable connector, spring, spring limiting board and bearing pin; Described installation gripper shoe is connected to internal welding machine centrum mechanism front end, and is connected with one end of guide post; Described insulating flange is socketed on guide post, and can slide along guide post; Described pneumoelectric gatherer is arranged on insulating flange; Described air guide cable connector is connected with pneumoelectric gatherer, and described air guide cable connector connects air guide cable; Described spring housing is connected on guide post, for limited support insulating flange; Described spring limiting board is socketed in the other end of guide post; Described spring is between spring limiting board and insulating flange; The other end top of described guide post is provided with the through hole of a pair of mutual correspondence; Described bearing pin is connected on guide post through described through hole, for pinning spring limiting board.
Described pneumoelectric gatherer comprises that pneumoelectric imports base, flange connecting portion, air guide cable connector connecting portion and tracheae snap joint; Described pneumoelectric imports base, flange connecting portion and air guide cable connector connecting portion and forms integrated component; On described flange connecting portion and air guide cable connector connecting portion, be respectively arranged with screw thread; Described pneumoelectric imports and on base, is provided with the fixedly screwed hole of common cable and tracheae snap joint; Described flange connecting portion is fastened on insulating flange by attaching nut.
Described pneumoelectric imports the cavity that base inside is provided with carrying common cable, and described cavity is connected with the fixing screwed hole of common cable; The center of described integrated component arranges the first air guide through hole, and described the first air guide through hole is connected with the screwed hole of fixedly tracheae snap joint; Described air guide cable connector connecting portion front end is provided with the cavity caving inward.
Described air guide cable connector comprises the gentle electric binding post of attaching nut; In described attaching nut, be provided with screw thread and step cutting pattern; Described pneumoelectric joint pin center is provided with the second air guide through hole; One end of described pneumoelectric joint pin is the spherical surface body with gag lever post, and the other end connects air guide cable; Described pneumoelectric joint pin runs through attaching nut and is embedded on step cutting pattern; Described attaching nut and air guide cable connector connecting portion are spirally connected, and the cavity of the spherical surface body of pneumoelectric joint pin one end and air guide cable connector connecting portion front end indent fits tightly, and described the first air guide through hole is communicated with the second air guide through hole closed butt joint.
The profile that described pneumoelectric imports base is six prisms.
Internal welding machine air guide cable transmission systems based on hollow cylinder of the present invention, by transmitting air guide cable from hollow tensioner cylinder interior, avoided the electric leakage gas leakage causing due to the wearing and tearing of air guide cable and welded the unfavorable factors such as unstable, improved welding quality, reduced construction cost, welding efficiency is improved greatly.
Accompanying drawing explanation
Fig. 1 is the discrete type laying structure schematic diagram of prior art internal welding machine air guide cable;
Fig. 2 is the axle side structure schematic diagram of Fig. 1;
Fig. 3 is the internal welding machine air guide cable transmission systems structural representation based on hollow cylinder of the present embodiment;
Fig. 4 is the structural representation of the center preloader of the present embodiment;
Fig. 5 is the external structure schematic diagram of the pneumoelectric gatherer of the present embodiment;
Fig. 6 is the cutaway view of the pneumoelectric gatherer of the present embodiment;
Fig. 7 is the external structure schematic diagram of the air guide cable connector of the present embodiment;
Fig. 8 is the cutaway view of the air guide cable connector of the present embodiment;
Fig. 9 is the internal welding machine air guide cable transmission systems pictorial diagram based on hollow cylinder of the present embodiment.
The specific embodiment
Below in conjunction with drawings and Examples, technical solution of the present invention is further described.
Referring to Fig. 3 and Fig. 9, the embodiment of the present invention provides a kind of internal welding machine air guide cable transmission systems based on hollow cylinder, and this system comprises the internal welding machine centrum 11, of mechanism center preloader 12, air guide cable 13, hollow tensioner cylinder 14, welding unit 15 and terminal pad 16.Wherein, on terminal pad 16, be provided with gathering sill 17; Center preloader 12 is connected to internal welding machine centrum mechanism 11 front ends by welding or bolted mode; Terminal pad 16 is connected in internal welding machine centrum mechanism 11 axis parts by hollow tensioner cylinder 14; Welding unit 15 be take hollow tensioner cylinder 14 and is evenly distributed in internal welding machine centrum mechanism 11 as axle center; Air guide cable 13 one end are connected on center preloader 12, and the other end penetrates hollow tensioner cylinder 14 cores and is connected with welding unit 15 via the gathering sill 17 on terminal pad 16; Center preloader 12 converges in 13 constraints of air guide cable the front end of hollow tensioner cylinder 14; Center preloader 12, air guide cable 13, hollow tensioner cylinder 14, welding unit 15 and terminal pad 16 are fixedly mounted in internal welding machine centrum mechanism 11.
As shown in Figure 4, the center preloader 12 of the present embodiment comprises installation gripper shoe 1206, guide post 1207, insulating flange 1208, pneumoelectric gatherer 1209, air guide cable connector 1210, spring 1211, spring limiting board 1212 and bearing pin 1213.Wherein, gripper shoe 1206 is installed and by welding or bolted mode, is connected to internal welding machine centrum mechanism 11 front ends, and weld with one end of guide post 1207; Insulating flange 1208 is socketed on guide post 1207, and can slide along guide post 1207; Pneumoelectric gatherer 1209 is arranged on the insulating flange 1208 of contiguous installation gripper shoe 1,206 one sides, and pneumoelectric gatherer 1209 can slide along guide post 1207 jointly with insulating flange 1208; Air guide cable connector 1210 is placed in the opposite side of insulating flange 1208, and air guide cable connector 1210 is connected with pneumoelectric gatherer 1209, and air guide cable connector 1210 is for connecting air guide cable 13; Spring 1211 sockets are arranged on guide post 1207, for limited support insulating flange 1208, by the resiliency supported of spring, make the air guide cable 13 elasticity pretensions of installing on insulating flange 1208; On spring limiting board 1212, be provided with through hole, spring limiting board 1212 is arranged on the other end of guide post 1207 by this through hole socket; Spring 1211 is between spring limiting board 1212 and insulating flange 1208; The other end top of guide post 1207 is provided with the through hole of a pair of mutual correspondence; Bearing pin 1213 is installed and is connected on guide post 1207 by the through hole at the other end top of guide post 1207, for pinning spring limiting board 1212.
As illustrated in Figures 5 and 6, pneumoelectric gatherer 1209 comprises that pneumoelectric imports base 301, flange connecting portion 302, air guide cable connector connecting portion 303 and tracheae snap joint 304; Pneumoelectric imports base 301, flange connecting portion 302 and air guide cable connector connecting portion 303 and forms integrated component (machine tooling part); On flange connecting portion 302 and air guide cable connector connecting portion 303, be respectively arranged with screw thread; Pneumoelectric imports and on base 301, to be provided with the fixedly screwed hole 305,307 of common cable and tracheae snap joint; Flange connecting portion 302, by the installing hole on insulating flange 1208 circumference, uses fastening nuts on insulating flange.Pneumoelectric imports the cavity 306 that base 301 inside are provided with carrying common cable, and cavity 306 is connected with the fixing screwed hole 305 of common cable; The center of integrated component arranges the first air guide through hole 308, the first air guide through holes 308 and is connected with the screwed hole 307 of fixedly tracheae snap joint; Air guide cable connector connecting portion 303 front ends are provided with the cavity 309 caving inward.In the present embodiment, pneumoelectric imports and on base 301, to be provided with 2 fixedly fixing screwed holes 307 of tracheae snap joint of the screwed hole 305 of common cable and 1; Tracheae snap joint is standard component, by itself with screw thread can realize the fastening installation with screwed hole 307; Common cable inserts in the cavity 306 of pneumoelectric importing base 301 inside, uses two bolts to be spirally connected with screwed hole 305 respectively, by controlling the screw-in depth of bolt, realizes the compression to common cable; According to air guide cable, to electric arc and the separated job requirement of protection gas, screwed hole 307 can not be communicated with cavity 306.In concrete application, for installation for convenience detach, it can be six prisms that pneumoelectric imports base 301 profiles; The quantity of screwed hole 305,307 can require to design according to actual production.
As shown in Figure 7 and Figure 8, air guide cable connector 1210 comprises the gentle electric binding post 402 of attaching nut 401; In attaching nut, be provided with screw thread 404 and step cutting pattern; Pneumoelectric joint pin 402 centers are provided with the second air guide through hole 403; One end of pneumoelectric joint pin 402 is the spherical surface body with gag lever post 405, and the other end connects air guide cable 13; Pneumoelectric joint pin 402 runs through attaching nut 401 and is embedded on step cutting pattern; Attaching nut 401 is spirally connected by screw thread 404 and air guide cable connector connecting portion 303, the cavity 309 of the spherical surface body of pneumoelectric joint pin 402 one end and air guide cable connector connecting portion 303 front end indents fits tightly, and the first air guide through hole 308 is communicated with the second air guide through hole 403 closed butt joints.
When the internal welding machine air guide cable transmission systems based on hollow cylinder of using the present embodiment is carried out welding operation, welding unit welds along clockwise (or counterclockwise) direction 36 degree, and air guide cable provides protective gas and weldingvoltage for each welding unit; In rotary course; welding unit traction air guide cable; elasticity pretension is carried out by center preloader in air guide cable one end; it is in-house that the air guide cable other end penetrates into internal welding machine centrum from hollow tensioner cylinder; by the gathering sill on terminal pad, be connected with welding unit, air guide cable moves in gathering sill, has formed a kind of independently air guide cable load mode; in reciprocal welding process, avoid the friction of other structural members, protected air guide cable.
The internal welding machine air guide cable transmission systems based on hollow cylinder of the embodiment of the present invention, by transmitting air guide cable from hollow tensioner cylinder interior, avoided the electric leakage gas leakage causing due to the wearing and tearing of air guide cable and welded the unfavorable factors such as unstable, improved welding quality, reduced construction cost, welding efficiency is improved greatly.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.