The portal frame that is used for the outer girth welding of tower body of wind power generation iron tower
Technical field
The utility model relates to the wind power generation iron tower technical field of processing equipment, relates in particular to a kind of portal frame that is used for the outer circumferential weld of convenient welding tower body of wind power generation iron tower.
Background technology
The tower body of wind power generation iron tower is welded by many groups shell ring, because the tower body diameter is bigger, the wall ratio of shell ring is thicker, and in manufacturing process, the welding difficulty is relatively big.For the welding effect of obtaining, traditional way is: the arm platform is put on the cylindrical shell that needs welding, places the submerged arc welding machine head on platform, start turning rolls, weld the outer circumferential weld of tower body again after tower body is at the uniform velocity rotated.This tooling device in welding process since this body structure be arm, the phenomenon that the platform shake therefore in welding process, inevitably can occur, can cause welder head significantly to rock like this, cause weld reinforcement fluctuated, even the undercut phenomenon appears, also there is very big influence in the linearity of butt welded seam, has influenced welding quality, has significantly increased multiple unnecessary doing over again and has reprocessed phenomenon.
The utility model content
Technical problem to be solved in the utility model is: a kind of portal frame that is used for the outer girth welding of tower body of wind power generation iron tower is provided, and big to solve the outer girth welding difficulty of traditional tower body of wind power generation iron tower, the technical problem that welding quality is not high.
For solving the problems of the technologies described above, the technical solution of the utility model is: the portal frame that is used for the outer girth welding of tower body of wind power generation iron tower, comprise two columns that are oppositely arranged, be provided with crossbeam between described two columns, described crossbeam is fixedly installed in the top of described two columns, and described crossbeam is provided with winding plant; Be slidingly fitted with hoistable platform between described two columns, described hoistable platform is connected with the flexible cable of winding plant, and described hoistable platform is provided with welder.
As a kind of improvement, the inboard of described two columns is equipped with guide rail, and two sides of described hoistable platform are equipped with and the suitable guide wheel of described guide rail.
As further improvement, the bottom of described two columns is equipped with roller, and described roller rolls in the driving lower edge of power set horizontal rail.
After having adopted technique scheme, the beneficial effects of the utility model are: because hoistable platform is slidingly mounted between two columns, hoistable platform is provided with welder, make portal frame can satisfy the outer girth welding of tower body of the wind power generation iron tower of different size, and the hoistable platform motion steadily, and when carrying out welding operation, hoistable platform can not produce and rock, can because of rocking, portal frame not influence weldquality, the welding quality height.
Since be provided with the guide rail guide wheel device between hoistable platform and two columns, steadily reliable when making the hoistable platform motion, when stopping to carry out weld job, well located, can not produce and rock, guaranteed welding quality effectively.
Because the bottom of two columns is equipped with roller, under the driving of power set, portal frame slides along horizontal rail, the shell ring group that only needs to form tower body of wind power generation iron tower to after be placed under the portal frame, rotate according to certain orientation and speed, portal frame just can weld behind the outer circumferential weld along the circumferential weld place outside next that moves axially of tower body, finishes the welding of many group shell rings, and is easy to operate.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the working state schematic representation of the utility model embodiment;
Among the figure: 1, column, 2, crossbeam, 3, winding plant, 31, flexible cable, 4, hoistable platform, 5, submerged arc welding machine, 6, guide rail, 7, guide wheel, 8, roller, 9, motor reducer, 10, horizontal rail, 11, tower body.
The specific embodiment
As depicted in figs. 1 and 2, a kind of portal frame that is used for the outer girth welding of tower body of wind power generation iron tower comprises two columns 1 that are oppositely arranged, and is provided with crossbeam 2 between described two columns 1, described crossbeam 2 is fixedly installed in the top of described two columns 1, and described crossbeam 2 is provided with winding plant 3; Be slidingly fitted with hoistable platform 4 between described two columns 1, the inboard of described two columns 1 is equipped with guide rail 6, and two sides of described hoistable platform 4 are equipped with the guide wheel 7 suitable with described guide rail 6; Described hoistable platform 4 is connected with the flexible cable 31 of winding plant 3, and described hoistable platform 4 is provided with welder, and described welder is preferably submerged arc welding machine 5.
The bottom of described two columns 1 is equipped with roller 8, and described roller 8 rolls in the driving lower edge of power set horizontal rail 10, and described power set are preferably motor reducer 9.
As shown in Figure 3, during use, group is placed on the turning rolls good many groups shell ring, turning rolls is the frock that shell ring is rotated, by motor reducer 9 portal frame is moved to two groups of commissures between the shell ring, control winding plant 3, adjust the height and position of hoistable platform 4, make that the head of submerged arc welding machine 5 is corresponding with the outer circumferential weld position of tower body 11, turning rolls drives tower body 11 and rotates, and submerged arc welding machine 5 welds automatically, after welding is finished, control motor reducer 9 and directly portal frame is moved to next outer circumferential weld position of tower body 11 along horizontal rail 10, directly weld and get final product.Use the outer girth welding quality height of tower body of the wind power generation iron tower of portal frame of the present utility model welding, easy and simple to handle, improved the make efficiency of wind power generation iron tower.
The utility model is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done all drop within the protection domain of the present utility model.