CN210046138U - Adjustable automatic submerged arc welding preheating device - Google Patents
Adjustable automatic submerged arc welding preheating device Download PDFInfo
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- CN210046138U CN210046138U CN201920367089.3U CN201920367089U CN210046138U CN 210046138 U CN210046138 U CN 210046138U CN 201920367089 U CN201920367089 U CN 201920367089U CN 210046138 U CN210046138 U CN 210046138U
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Abstract
The utility model relates to a when being used for narrow clearance submerged arc welding barrel circumferential weld of portal frame, adjustable distance and the preheating device of even heating, specifically speaking to the narrow clearance submerged arc welding frame of portal frame adopts lead screw drive design adjustable submerged arc automatic weld preheating device for relying on, adopts intermediate frequency electromagnetic heating blanket to weld the pressure vessel barrel and preheat before, in order to reach the purpose that is applicable to different diameter pressure vessel barrels and welds even preheating. The device solves the problems of uneven pre-welding temperature, low efficiency and failure in continuous and uniform heating in the welding process during automatic submerged arc welding of CrMo steel equipment.
Description
Technical Field
The utility model relates to a when being used for narrow clearance submerged arc welding barrel circumferential weld of portal frame, adjustable distance and the preheating device of even heating specifically are an adjustable submerged arc automatic weld preheating device. The utility model discloses use portal frame narrow clearance submerged arc welding frame to rely on, adopt screw drive design one kind to adjust preheating device about can from top to bottom to adopt intermediate frequency electromagnetic heating blanket to weld the pressure vessel barrel and preheat, with the purpose that evenly preheats before reaching and being applicable to different diameter pressure vessel barrels and welding.
Background
The method is used for high-temperature and high-pressure vessels, the pressure vessels are usually made of chrome molybdenum steel (such as 15CrMoR, 14Cr1MoR and the like), narrow-gap submerged arc automatic welding is generally adopted, a cylinder circumferential weld groove and two ends of the groove are required to be preheated to be more than or equal to 150 ℃ before welding, flame heating on two sides is generally adopted before welding, the efficiency is low, continuous and uniform heating in the welding process cannot be realized, and the primary qualified rate of circumferential weld welding is low.
At present, the purposes of uniform heating and controllable temperature during cylinder circumferential seam submerged arc automatic welding can be well realized by adopting medium-frequency electromagnetic heating. The medium-frequency electromagnetic heating blanket and the adjustable preheating device are fixed into a whole and hung on a gantry type narrow-gap submerged arc automatic welding frame; the lead screw is adopted for transmission, and the lead screw can move up and down and left and right so as to achieve the purpose of uniformly preheating the pressure vessel cylinders with different diameters before welding.
Disclosure of Invention
The utility model aims at: the preheating device is used for adjusting the distance and uniformly heating when a portal frame narrow-gap submerged arc welding barrel circumferential seam is formed. The medium-frequency electromagnetic heating blanket and the adjustable preheating device are fixed into a whole, and are hung on a gantry type narrow-gap submerged arc automatic welding frame, and the medium-frequency electromagnetic heating blanket can move up and down and left and right by adopting lead screw transmission, so that the aim of uniformly preheating the pressure vessel cylinders with different diameters before welding is fulfilled.
The utility model discloses an adopt following technical scheme to realize: an adjustable submerged arc automatic welding preheating device comprises an intermediate frequency electromagnetic heating blanket and an adjustable preheating device, wherein the adjustable preheating device comprises a horizontal lead screw, a suspension bracket component, a fixed bracket, a vertical lead screw and a rolling bearing component, the rolling bearing component comprises a pin shaft and a rolling bearing, the suspension bracket component is formed by welding a square pipe and two reinforcing plates, the square pipe and the reinforcing plates are respectively drilled with through holes, the reinforcing plates are welded on two sides of the top of the front side of the square pipe, the through holes of the two reinforcing plates are at the same height, the pin shaft respectively penetrates through the through holes of the square pipe and the trapezoidal reinforcing plate, the rolling bearing is respectively installed at two ends of the pin shaft, the vertical lead screw is also fixed on the front side of the square pipe, the front side of the fixed bracket is connected with a movable sleeve matched with the vertical lead screw, the intermediate frequency electromagnetic, one end of the horizontal lead screw is connected with the gantry type submerged arc automatic welding stand column, and the other end of the horizontal lead screw penetrates through the square tube of the suspension bracket component and is connected with the movable sleeve on the horizontal lead screw. The medium-frequency electromagnetic heating blanket is fixed on the fixed support, and is driven to move in the vertical direction by adjusting the vertical lead screw to realize the movement in the vertical direction; the horizontal lead screw is adjusted to drive the suspension bracket assembly to move in the horizontal direction through the rolling bearing assembly. When the cylinder bodies of the pressure vessels with different diameters are preheated, the intermediate-frequency electromagnetic heating blanket needs to be moved up and down, left and right to be positioned at the middle position of the outer side of the cylinder body, the intermediate-frequency electromagnetic heating blanket does not move when the cylinder bodies are preheated after the intermediate-frequency electromagnetic heating blanket is fixed, and the cylinder bodies are rotated by a turntable on the gantry type submerged arc automatic welding.
Foretell automatic submerged arc welds preheating device with adjustable, preheating device with adjustable still include sliding guide, and sliding guide adopts the bolt fastening to manage both sides face in the side, and the fixed bolster both sides are connected with sliding guide. The intermediate frequency electromagnetic heating blanket moves along the sliding guide rail in the vertical direction, and the sliding guide rail ensures that the intermediate frequency electromagnetic heating blanket moves stably.
According to the adjustable submerged arc automatic welding preheating device, the two trapezoidal rib plates are welded and reinforced through the connecting plates.
Since the technical scheme is used, the utility model discloses solve the poor problem of preheating effect when CrMo steel equipment adopts planer-type submerged arc automatic weld welding barrel circumferential weld better, this preheating device's height and distance are adjusted to accessible level and vertical lead screw. In addition, the medium-frequency electromagnetic heating is adopted to ensure that the preheating temperature before welding is uniform, the preheating temperature is ensured in a larger range, and the primary welding qualification rate of the circumferential weld is improved.
Drawings
Fig. 1 is a schematic view of the present invention.
Fig. 2 is the structure schematic diagram of the adjustable automatic submerged arc welding preheating device of the utility model.
Fig. 3 is a view from direction a of fig. 2.
Fig. 4 is a schematic view of a suspension bracket assembly.
Fig. 5 is a top view of fig. 4.
In the figure: the method comprises the following steps of 1-a horizontal lead screw, 2-a suspension bracket assembly, 3-a sliding guide rail, 4-a fixed bracket, 5-a vertical lead screw, 6-a rolling bearing assembly, 7-a medium-frequency electromagnetic heating blanket, 8-a gantry type narrow-gap automatic welding machine, 9-an adjustable preheating device, 10-a barrel and 11-a rotary table.
Detailed Description
As shown in figure 1, the preheating device is hung on a gantry type submerged arc automatic welding top frame, a rolling bearing assembly 6 is in contact with the bottom of the frame and is just placed in the space between the frames, and enough sliding gaps are left between the left side and the right side of the frame and the two sides of the frame. The left side and the right side of the gantry type submerged arc automatic welding top frame are respectively provided with the preheating device.
Fig. 2 is the utility model relates to an adjustable submerged arc automatic weld preheating device schematic structure. The method comprises the following steps that firstly, a square pipe, two trapezoidal reinforcing rib plates and a connecting plate are welded to form a suspension support assembly 2, through holes are respectively drilled in the square pipe and the trapezoidal reinforcing rib plates, the trapezoidal reinforcing rib plates are welded to two sides of the top of the front side of the square pipe, the through holes of the two rib plates are ensured to be at the same height, and the two trapezoidal reinforcing rib plates are welded and reinforced through the connecting plate. Secondly, installing a rolling bearing assembly 6, respectively penetrating two pin shafts into the square tube and the trapezoidal reinforcing rib plate through holes of the suspension bracket assembly 2, and respectively installing and fixing rolling bearings at two ends of each pin shaft; the sliding guide rails 3 are fixed on the left side surface and the right side surface of the square tube of the suspension bracket assembly 2 by bolts; the vertical screw 5 is fixed on the front side of the square tube of the suspension bracket assembly 2 and is positioned below the trapezoidal reinforcing rib plate. And finally, a frame-shaped fixed support 4 with an opening at one side is installed, the front side of the frame-shaped fixed support is connected with a movable sleeve matched with the vertical screw 5, and the two sides of the frame-shaped fixed support are connected with the sliding guide rail 3. The preheating device is hung on a gantry type submerged arc automatic welding top frame, a rolling bearing assembly 6 is in contact with the bottom of the frame and just placed in the space between the frames, and enough sliding gaps are left between the left side and the right side of the preheating device and the two sides of the frames. One end of a horizontal lead screw 1 is connected with a gantry type submerged arc automatic welding upright post, and the other end of the horizontal lead screw is connected with a square tube which passes through a suspension bracket assembly 2 and is connected with a movable sleeve on the horizontal lead screw 1.
Claims (3)
1. An adjustable submerged arc automatic welding preheating device is characterized by comprising an intermediate frequency electromagnetic heating blanket (7) and an adjustable preheating device, wherein the adjustable preheating device comprises a horizontal lead screw (1), a suspension support component (2), a fixed support (4), a vertical lead screw (5) and a rolling bearing component (6), the rolling bearing component (6) comprises a pin shaft and a rolling bearing, the suspension support component (2) is formed by welding a square pipe and two rib plates, the square pipe and the rib plates are respectively drilled with through holes, the rib plates are welded on two sides of the front top of the square pipe, the through holes of the two rib plates are at the same height, the pin shaft penetrates through the through holes of the square pipe and the trapezoidal rib plate respectively, the rolling bearing is respectively installed at two ends of the pin shaft, the vertical lead screw (5) is further fixed on the front side of the square pipe, the front side of the fixed support (4) is connected with a matched movable, the adjustable preheating device is hung on a gantry type submerged arc automatic welding top frame, a rolling bearing is contacted with the bottom of the frame, one end of a horizontal lead screw (1) is connected with a gantry type submerged arc automatic welding upright post, the other end of the horizontal lead screw penetrates through a square tube of a hanging bracket assembly (2), and the square tube is connected with a movable sleeve on the horizontal lead screw (1).
2. The adjustable preheating device for automatic submerged arc welding according to claim 1, which further comprises a sliding guide rail (3), wherein the sliding guide rail (3) is fixed on two side surfaces of the square tube by bolts, and two sides of the fixed support (4) are connected with the sliding guide rail (3).
3. The adjustable preheating device for submerged automatic arc welding according to claim 1 or 2, wherein the two trapezoidal rib plates are welded and reinforced by adopting connecting plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920367089.3U CN210046138U (en) | 2019-03-22 | 2019-03-22 | Adjustable automatic submerged arc welding preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920367089.3U CN210046138U (en) | 2019-03-22 | 2019-03-22 | Adjustable automatic submerged arc welding preheating device |
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| CN210046138U true CN210046138U (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920367089.3U Active CN210046138U (en) | 2019-03-22 | 2019-03-22 | Adjustable automatic submerged arc welding preheating device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633299A (en) * | 2020-05-15 | 2020-09-08 | 上海石化机械制造有限公司 | Manufacturing process of pressure container and welding workbench |
| CN114473121A (en) * | 2022-03-18 | 2022-05-13 | 安徽祥源汽车配件制造有限公司 | Intelligent assembling and welding device for automobile oil pipe joint |
| CN116493709A (en) * | 2023-06-21 | 2023-07-28 | 山西八建集团有限公司 | Preheating welding device for steel plate on conversion truss |
-
2019
- 2019-03-22 CN CN201920367089.3U patent/CN210046138U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633299A (en) * | 2020-05-15 | 2020-09-08 | 上海石化机械制造有限公司 | Manufacturing process of pressure container and welding workbench |
| CN111633299B (en) * | 2020-05-15 | 2022-01-07 | 上海石化机械制造有限公司 | Manufacturing process of pressure container |
| CN114473121A (en) * | 2022-03-18 | 2022-05-13 | 安徽祥源汽车配件制造有限公司 | Intelligent assembling and welding device for automobile oil pipe joint |
| CN114473121B (en) * | 2022-03-18 | 2022-09-27 | 安徽祥源汽车配件制造有限公司 | Intelligent assembling and welding device for automobile oil pipe joint |
| CN116493709A (en) * | 2023-06-21 | 2023-07-28 | 山西八建集团有限公司 | Preheating welding device for steel plate on conversion truss |
| CN116493709B (en) * | 2023-06-21 | 2023-09-05 | 山西八建集团有限公司 | Preheating welding device for steel plate on conversion truss |
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