Steel structure welding preheating device

Abstract

The utility model discloses a steel structure welding preheating device, which belongs to the technical field of steel structure processing, and is characterized by comprising a first support and a second support, an electric conveying roller group is arranged between the first support and the second support, and a preheating assembly is arranged at the top of the first support and the top of the second support. Conveying limiting assemblies are arranged on the front sides and the rear sides of the tops of the first support and the second support correspondingly, the preheating assembly comprises a fixing frame, and the problems that when an existing preheating device preheats a steel structure, the existing preheating device needs to be fixed to the surface of the steel structure, operation is troublesome, the preheating position of the steel structure is inconvenient to adjust after fixing, and the preheating efficiency is high are solved. The problems that in the prior art, the preheating distance of a burner is not convenient to adjust according to steel structures of different shapes and sizes, and after one steel structure is preheated, the next steel structure is not convenient to conduct continuous preheating work rapidly are solved.

Description

Technical Field

[0001] This utility model relates to the field of steel structure processing technology, and in particular to a steel structure welding preheating device. Background Technology

[0002] In the welding process of steel structures, in order to reduce the cooling rate of the weld joint, reduce the generation of hardened structures, and prevent the occurrence of welding cracks, it is usually necessary to preheat the weld area.

[0003] Existing welding preheating devices for steel structure pipes mostly preheat by winding wire, which requires a long time to wind multiple sets of coils around the pipe, which is time-consuming and labor-intensive.

[0004] Existing patent (publication number: CN211939594U) discloses a steel structure welding preheating device, including a fixed cylinder, a mating plate, a mounting plate, and a transmission structure. The fixed cylinder has a semi-cylindrical structure, and two sets of fixed cylinders are provided. The two sets of fixed cylinders are hinged together on one side. A preheating cavity is opened inside the fixed cylinder, and mating plates are fixed at both ends of the preheating cavity. The mating plate has a semi-circular ring structure. A guide block is provided in the middle section of the side of the mounting plate away from the burner, and a transmission structure is provided on one side of the guide block. A fixed plate is fixed on the side of the mounting plate away from the burner and close to the guide block. An arc-shaped through cavity is opened on the fixed cylinder, and the fixed plate is slidably disposed in the cavity. This steel structure welding preheating device is reasonably designed and can quickly clamp and fix steel structure pipes and preheat them after clamping, making it suitable for widespread use.

[0005] To address the aforementioned issues, existing patents offer solutions, but their preheating devices require fixing to the surface of the steel structure during preheating, which is cumbersome to operate. Furthermore, once fixed, it is inconvenient to adjust the preheating position of the steel structure, and it is also inconvenient to adjust the preheating distance of the burner according to different shapes and sizes of steel structures. Moreover, after preheating one steel structure, it is not convenient to quickly and continuously preheat the next steel structure.

[0006] To address this, a preheating device for steel structure welding is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a steel structure welding preheating device, which can solve the problems of existing preheating devices, which require fixing to the surface of the steel structure when preheating the steel structure, which is cumbersome to operate, and it is not convenient to adjust the preheating position of the steel structure after fixing. It is also not convenient to adjust the preheating distance of the burner according to the different shapes and sizes of steel structures, and it is not convenient to quickly carry out continuous preheating work on the next steel structure after the preheating of one steel structure is completed.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a steel structure welding preheating device, comprising a first support and a second support, an electric conveying roller group being arranged between the first support and the second support, a preheating component being arranged on the top of the first support and the second support, and a conveying limiting component being arranged on the front and rear sides of the top of the first support and the second support.

[0009] The preheating assembly includes a fixed frame, with the bottom sides of the fixed frame fixedly connected to the top of the first bracket and the second bracket respectively. A lifting cylinder is fixedly connected to the top of the fixed frame, and the output rod of the lifting cylinder passes through the fixed frame and is fixedly connected to a circular frame. Multiple electric telescopic rods are fixedly connected around the circular frame, and the output rods of the electric telescopic rods pass through the inner cavity of the circular frame and are fixedly connected to a burner.

[0010] Preferably, the conveying limiting assembly includes two fixed plates, the bottom of the two fixed plates being fixedly connected to the top of the first bracket and the second bracket respectively, and a handle is provided on the opposite side of the two fixed plates. An adjusting screw is fixedly connected to the side of the handle near the fixed plate, and the other end of the adjusting screw passes through the fixed plate and is rotatably connected to the limiting plate through a bearing seat.

[0011] Preferably, a first limiting guide rod is fixedly connected to both the front and rear sides of the limiting plate near the fixed plate. The side of the first limiting guide rod away from the limiting plate passes through the fixed plate. A first sliding hole is provided on both the front and rear sides of the fixed plate near the limiting plate to cooperate with the first limiting guide rod. The surface of the first limiting guide rod is slidably connected to the inner wall of the first sliding hole.

[0012] Preferably, the fixing plate has a threaded hole on the side near the throttle for use with the adjusting screw, and the surface of the adjusting screw is connected to the inner wall of the threaded hole by a thread.

[0013] Preferably, the top of the fixing frame is provided with a first through hole for use with the lifting cylinder, and the surface of the output rod of the lifting cylinder is slidably connected to the inner wall of the first through hole.

[0014] Preferably, the circular frame has multiple second through holes around its perimeter for use with the electric telescopic rod, and the output rod surface of the electric telescopic rod is slidably connected to the inner wall of the second through holes.

[0015] Preferably, a second limiting guide rod is fixedly connected to both sides of the top of the circular frame, the top of the second limiting guide rod extends through to the top of the fixed frame, and a second sliding hole is provided on both sides of the top inner side of the fixed frame to cooperate with the second limiting guide rod. The surface of the second limiting guide rod is slidably connected to the inner wall of the second sliding hole.

[0016] Preferably, a control panel is provided on the top right side of the first bracket for use with the electric conveying roller assembly, lifting cylinder and electric telescopic rod. A fixing support bar is fixedly connected to the bottom of the control panel, and the side of the fixing support bar near the first bracket is fixedly connected to the first bracket.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application can preheat steel structures by setting up a preheating component. The preheating distance can be easily adjusted according to the shape and size of the steel structure. It can also be used in conjunction with an electric conveyor roller group to flexibly adjust the preheating position of the steel structure. After the preheating of one steel structure is completed, the next steel structure can be preheated continuously, which is quite convenient.

[0019] 2. By setting the conveying limit component, this application can limit the steel structure when the electric conveying roller group conveys the steel structure, prevent the steel structure from deviating, and can flexibly adjust to steel structures of different widths. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the steel structure welding preheating device of this utility model;

[0021] Figure 2 In this utility model Figure 1 Front view structural diagram;

[0022] Figure 3 This is a structural diagram of the preheating component in this utility model;

[0023] Figure 4 This is a structural diagram of the conveying and limiting component in this utility model;

[0024] Figure 5 This is a structural diagram of the fixed frame and the circular frame in this utility model.

[0025] In the diagram, 1. First support; 2. Second support; 3. Electric conveyor roller assembly; 4. Preheating assembly; 401. Fixed frame; 402. Lifting cylinder; 403. Circular frame; 404. Electric telescopic rod; 405. Combustion nozzle; 5. Conveying limit assembly; 501. Fixed plate; 502. Rotary handle; 503. Adjusting screw; 504. Limiting plate; 505. First limiting guide rod; 506. First sliding hole; 507. Threaded hole; 6. First through hole; 7. Second through hole; 8. Second limiting guide rod; 9. Second sliding hole; 10. Control panel; 11. Fixed support bar. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A steel structure welding preheating device includes a first support 1 and a second support 2, an electric conveying roller group 3 is arranged between the first support 1 and the second support 2, a preheating component 4 is arranged on the top of the first support 1 and the second support 2, and a conveying limiting component 5 is arranged on the front and rear sides of the top of the first support 1 and the second support 2.

[0029] The preheating component 4 includes a fixed frame 401. The two sides of the bottom of the fixed frame 401 are fixedly connected to the top of the first support 1 and the second support 2, respectively. A lifting cylinder 402 is fixedly connected to the top of the fixed frame 401. The output rod of the lifting cylinder 402 passes through the fixed frame 401 and is fixedly connected to a circular frame 403. Multiple electric telescopic rods 404 are fixedly connected around the circular frame 403. The output rod of the electric telescopic rod 404 passes through the inner cavity of the circular frame 403 and is fixedly connected to a burner nozzle 405.

[0030] In this embodiment: by setting up a first support 1, a second support 2, an electric conveyor roller group 3, a preheating component 4, and a conveying limiting component 5, the first support 1 and the second support 2 can provide a supporting foundation for the entire device. The electric conveyor roller group 3 can convey the steel structure that needs to be preheated. The preheating component 4 can preheat the steel structure, and the preheating distance can be easily adjusted according to the shape and size of the steel structure. It can also be used in conjunction with the electric conveyor roller group 3 to flexibly adjust the preheating position of the steel structure. At the same time, after the preheating of one steel structure is completed, the next steel structure can be quickly and continuously preheated, which is quite convenient. The conveying limiting component 5 can limit the steel structure when the electric conveyor roller group 3 conveys the steel structure to prevent the steel structure from deviating, and can be flexibly adjusted to adapt to steel structures of different widths.

[0031] Specifically, such as Figure 1 , Figure 2 , Figure 4As shown, the conveying limiting assembly 5 includes two fixed plates 501. The bottom of the two fixed plates 501 is fixedly connected to the top of the first bracket 1 and the second bracket 2, respectively. A handle 502 is provided on the opposite side of the two fixed plates 501. An adjusting screw 503 is fixedly connected to the side of the handle 502 near the fixed plate 501. The other end of the adjusting screw 503 passes through the fixed plate 501 and is rotatably connected to the limiting plate 504 through the bearing seat.

[0032] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, a first limiting guide rod 505 is fixedly connected to both the front and rear sides of the limiting plate 504 near the fixing plate 501. The side of the first limiting guide rod 505 away from the limiting plate 504 passes through the fixing plate 501. A first sliding hole 506 is provided on both the front and rear sides of the fixing plate 501 near the limiting plate 504 to cooperate with the first limiting guide rod 505. The surface of the first limiting guide rod 505 is slidably connected to the inner wall of the first sliding hole 506.

[0033] Specifically, such as Figure 4 As shown, the fixed plate 501 has a threaded hole 507 on the side near the throttle 502, which is used to cooperate with the adjusting screw 503. The surface of the adjusting screw 503 is connected to the inner wall of the threaded hole 507 by threads.

[0034] In this embodiment: by setting a fixed plate 501, a handle 502, an adjusting screw 503, a limiting plate 504, a first limiting guide rod 505, a first sliding hole 506, and a threaded hole 507, in use, firstly, the positions of the two limiting plates 504 are adjusted according to the width of the steel structure. The two handles 502 can be rotated respectively, causing the two adjusting screws 503 to rotate within the two fixed plates 501 and move under the action of the threaded hole 507. The two adjusting screws 503 will then drive the two limiting plates 504 to move, thereby allowing the two limiting plates 504 to be moved. The position of the positioning plate 504 can be adjusted. The two limiting plates 504 can limit the two sides of the steel structure, so that the steel structure will not be deflected when the electric conveying roller group 3 conveys the steel structure. The position of the limiting plate 504 can be flexibly adjusted to accommodate steel structures of different widths. The first limiting guide rod 505 can guide and limit the limiting plate 504, so that the limiting plate 504 can move and adjust smoothly left and right. The first sliding hole 506 allows the first limiting guide rod 505 to slide left and right through the fixed plate 501.

[0035] Specifically, such as Figure 5 As shown, the top of the fixed frame 401 is provided with a first through hole 6 for use with the lifting cylinder 402, and the surface of the output rod of the lifting cylinder 402 is slidably connected to the inner wall of the first through hole 6.

[0036] Specifically, such as Figure 5 As shown, the circular frame 403 has multiple second through holes 7 around its perimeter that cooperate with the electric telescopic rod 404. The output rod surface of the electric telescopic rod 404 is slidably connected to the inner wall of the second through hole 7.

[0037] In this embodiment: by providing the first through hole 6, the output rod of the lifting cylinder 402 can pass through the fixed frame 401 for lifting output; by providing the second through hole 7, the output rod of the electric telescopic rod 404 can pass through the circular frame 403 for telescopic output.

[0038] Specifically, such as Figure 1 , Figure 2 , Figure 3 As shown, a second limiting guide rod 8 is fixedly connected to both sides of the top of the circular frame 403. The top of the second limiting guide rod 8 extends through to the top of the fixed frame 401. A second sliding hole 9 is provided on both sides of the top of the inner side of the fixed frame 401 to cooperate with the second limiting guide rod 8. The surface of the second limiting guide rod 8 is slidably connected to the inner wall of the second sliding hole 9.

[0039] Specifically, such as Figure 1 , Figure 2 As shown, a control panel 10 is provided on the top right side of the first support 1, which works in conjunction with the electric conveying roller group 3, the lifting cylinder 402 and the electric telescopic rod 404. A fixed support bar 11 is fixedly connected to the bottom of the control panel 10, and the side of the fixed support bar 11 near the first support 1 is fixedly connected to the first support 1.

[0040] In this embodiment: by setting the second limiting guide rod 8, the circular frame 403 can be guided and limited, so that the circular frame 403 can move up and down smoothly. By setting the second sliding hole 9, the second limiting guide rod 8 can pass through the fixed frame 401 to slide up and down. By setting the control panel 10, the electric conveying roller group 3, the lifting cylinder 402 and the electric telescopic rod 404 can be operated. By setting the fixed support 11, the control panel 10 can be supported and fixed.

[0041] Working Principle: During use, the steel structure to be preheated is placed on the electric conveyor roller assembly 3. The positions of the two limiting plates 504 can be adjusted according to the width of the steel structure. Rotating the two handles 502 causes the two adjusting screws 503 to rotate within the two fixed plates 501 and move through the threaded holes 507. The adjusting screws 503 then move the two limiting plates 504, thus adjusting their positions. The limiting plates 504 limit the steel structure on both sides, preventing skewing during conveying by the electric conveyor roller assembly 3. The positions of the limiting plates 504 are flexibly adjustable to accommodate steel structures of different widths. Then, the electric conveyor roller assembly 3 is started via the control panel 10, transporting the steel structure to the preheating area. At this point, the positions of the circular frame 403 and the burner 405 can be adjusted according to the shape and size of the steel structure. The lifting cylinder 402 can be activated through the control panel 10, causing the output rod of the lifting cylinder 402 to move the circular frame 403 up and down, adjusting the circular frame 403 to a suitable height. Then, multiple electric telescopic rods 404 can be activated through the control panel 10, causing the output rods of the electric telescopic rods 404 to move the burner 405. This allows the preheating distance of the burner 405 to be adjusted according to the shape (such as H-beams, round columns) and size of the steel structure. Then, the burner 405 can be connected to the gas system to spray flames to preheat the steel structure. At this time, the preheating position of the steel structure can be flexibly adjusted by the electric conveying roller group 3. After the preheating of one steel structure is completed, the next steel structure can be quickly and continuously preheated by the electric conveying roller group 3, which is quite convenient.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel structure welding preheating device, comprising a first support (1) and a second support (2), characterized in that: An electric conveying roller group (3) is provided between the first support (1) and the second support (2). A preheating component (4) is provided on the top of the first support (1) and the second support (2). A conveying limiting component (5) is provided on the front and rear sides of the top of the first support (1) and the second support (2). The preheating component (4) includes a fixed frame (401). The two sides of the bottom of the fixed frame (401) are fixedly connected to the top of the first support (1) and the second support (2), respectively. A lifting cylinder (402) is fixedly connected to the top of the fixed frame (401). The output rod of the lifting cylinder (402) passes through the fixed frame (401) and is fixedly connected to a circular frame (403). Multiple electric telescopic rods (404) are fixedly connected around the circular frame (403). The output rod of the electric telescopic rod (404) passes through the inner cavity of the circular frame (403) and is fixedly connected to a burner (405).

2. The steel structure welding preheating device according to claim 1, characterized in that: The conveying limiting assembly (5) includes two fixed plates (501). The bottom of the two fixed plates (501) is fixedly connected to the top of the first bracket (1) and the second bracket (2), respectively. A handle (502) is provided on the opposite side of the two fixed plates (501). An adjusting screw (503) is fixedly connected to the side of the handle (502) near the fixed plate (501). The other end of the adjusting screw (503) passes through the fixed plate (501) and is rotatably connected to a limiting plate (504) through a bearing seat.

3. The steel structure welding preheating device according to claim 2, characterized in that: The limiting plate (504) is fixedly connected to the front and rear sides of the side near the fixed plate (501) with a first limiting guide rod (505). The side of the first limiting guide rod (505) away from the limiting plate (504) passes through the fixed plate (501). The front and rear sides of the fixed plate (501) near the limiting plate (504) are provided with a first sliding hole (506) that cooperates with the first limiting guide rod (505). The surface of the first limiting guide rod (505) is slidably connected to the inner wall of the first sliding hole (506).

4. The steel structure welding preheating device according to claim 2, characterized in that: The fixing plate (501) has a threaded hole (507) on the side near the throttle (502) that is used to cooperate with the adjusting screw (503). The surface of the adjusting screw (503) is connected to the inner wall of the threaded hole (507) by a thread.

5. A steel structure welding preheating device according to claim 1, characterized in that: The top of the fixed frame (401) is provided with a first through hole (6) for use with the lifting cylinder (402), and the surface of the output rod of the lifting cylinder (402) is slidably connected to the inner wall of the first through hole (6).

6. The steel structure welding preheating device according to claim 1, characterized in that: The circular frame (403) has multiple second through holes (7) around its perimeter that are used in conjunction with the electric telescopic rod (404). The output rod surface of the electric telescopic rod (404) is slidably connected to the inner wall of the second through hole (7).

7. A steel structure welding preheating device according to claim 1, characterized in that: The top of the circular frame (403) is fixedly connected to two sides of the top, and the top of the second limiting guide rod (8) extends through to the top of the fixed frame (401). The top of the inner side of the fixed frame (401) is provided with two sides of the second sliding hole (9) that cooperates with the second limiting guide rod (8). The surface of the second limiting guide rod (8) is slidably connected to the inner wall of the second sliding hole (9).

8. A steel structure welding preheating device according to claim 1, characterized in that: The top right side of the first bracket (1) is provided with a control panel (10) that works in conjunction with the electric conveying roller assembly (3), the lifting cylinder (402) and the electric telescopic rod (404). The bottom of the control panel (10) is fixedly connected with a fixing support (11), and the fixing support (11) is fixedly connected to the first bracket (1) on the side close to the first bracket (1).

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