Submerged-arc welding bracket

Abstract

The utility model relates to the technical field of welding brackets, in particular to a submerged-arc welding bracket which comprises a bottom frame, two sliding grooves distributed left and right are formed in the upper end face of the bottom frame, a threaded rod is movably connected to the interior of the sliding groove in the right end through a bearing, and the outer wall of the threaded rod is in threaded connection with a threaded sleeve. A first supporting frame is fixedly connected to the upper end face of the threaded sleeve, a second supporting frame which is symmetrical to the first supporting frame is fixedly connected to the upper end face of the bottom frame, a first roller shaft and a second roller shaft are movably connected to the interiors of the first supporting frame and the second supporting frame through bearings correspondingly, and a second motor drives a threaded rod to rotate; therefore, the threaded sleeve and the first supporting frame can be driven to move, the distance between the first supporting frame and the second supporting frame is increased, the two second roller shafts assist the pipeline in rotating, the pipeline can be further prevented from being separated from the roller shafts, and the distance between the two roller shafts can be adjusted according to the diameter of the pipeline. And the purpose of improving the rotating stability of a large pipeline is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding brackets, in particular to a submerged arc welding bracket. Background Art

[0002] In the past, on-site pipeline welding usually used manual arc welding, which required high technical level and personnel quality of welders. As the scale of projects undertaken by enterprises becomes larger and larger, the scope of projects involved is also getting wider and wider, and the construction period of the projects undertaken is becoming more and more tight. In order to ensure the construction quality and construction period, enterprises have begun to use large-scale pipeline submerged arc automatic welding machines in projects to improve welding quality and welding efficiency, reduce costs, speed up the construction progress of pipeline prefabrication, and improve construction efficiency.

[0003] CN 218135612 U discloses a novel pipeline submerged arc welding rotating bracket for training, comprising a trolley bracket, handrails, wheels, a controller, a driving motor, a reducer, a transmission mechanism, two sets of active rollers, and two sets of passive rollers. The active rollers and the passive rollers are arranged in parallel, and the pipeline to be welded is driven to rotate by driving the active rollers and the passive rollers to rotate.

[0004] In the above device, since the distance between the active roller and the passive roller is relatively fixed, it is inconvenient to adjust the distance between the active roller and the passive roller when driving a pipe with a larger diameter to rotate, resulting in poor stability when the larger pipe rotates. In severe cases, the pipe may be detached from the roller when rolling, which is inconvenient to use. In addition, no mechanism is provided to limit the two sides of the pipe. Due to the unevenness of the pipe, serious displacement may occur during the rotation process, affecting the welding quality. Therefore, a submerged arc welding bracket is proposed. Utility Model Content

[0005] The utility model aims to provide a submerged arc welding bracket, which has the characteristics of being able to adjust the distance between two rollers according to the diameter of the pipeline, thereby increasing the stability of the larger pipeline when it rotates, being easy to use and convenient for limiting the two ends of the pipeline, and preventing the pipeline from being seriously displaced due to the uneven outer wall.

[0006] The utility model aims to provide a submerged arc welding bracket, comprising a base frame, wherein the upper end surface of the base frame is provided with two slide grooves distributed on the left and right, the inside of the slide groove at the right end is movably connected with a threaded rod through a bearing, the outer wall of the threaded rod is threadedly connected with a threaded sleeve, the upper end surface of the threaded sleeve is fixedly connected with a first support frame, the upper end surface of the base frame is fixedly connected with a second support frame symmetrically distributed with the first support frame, and the insides of the first support frame and the second support frame are both movably connected with a first roller shaft and a second roller shaft through bearings;

[0007] The left and right ends of the base frame are fixedly connected with "L"-shaped brackets, and the opposite sides of the two brackets are equipped with electric push rods. The output ends of the two electric push rods respectively penetrate the brackets and are fixedly connected with limit strips.

[0008] In order to facilitate driving the threaded rod to rotate, as a preferred submerged arc welding bracket of the utility model, a second motor is installed on the front end surface of the base frame, and the output end of the second motor passes through the base frame and is fixedly connected to the threaded rod.

[0009] In order to drive the first roller to rotate, as a preferred submerged arc welding bracket of the utility model, the left end faces of the first support frame and the second support frame are both equipped with first motors, and the two first motors respectively penetrate the first support frame and the second support frame and are fixedly connected to the first roller.

[0010] In order to conveniently drive the two first rollers to rotate in the same direction, as a preferred submerged arc welding bracket of the utility model, the two first motors rotate in the same direction.

[0011] In order to increase the stability of the movement of the first support frame, as a preferred submerged arc welding bracket of the utility model, the bottom end of the first support frame is fixedly connected to a limiting block, and the limiting block is slidably connected to the slide groove at the left end through a slide rail.

[0012] For the convenience of operation, as a preferred submerged arc welding bracket of the utility model, the rear end face of the base frame is fixedly connected with an "L"-shaped fixing frame, and the upper end face of the fixing frame is installed with a controller.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model drives the threaded rod to rotate by the second motor, thereby driving the threaded sleeve and the first support frame to move, thereby increasing the distance between the first support frame and the second support frame. The two second rollers assist the pipeline in rotating, which can further prevent the pipeline from being separated from the rollers, thereby achieving the purpose of being able to adjust the distance between the two rollers according to the diameter of the pipeline, thereby increasing the stability of the larger pipeline when rotating.

[0015] The two electric push rods can respectively drive the limit bars to move relative to each other, so that the two limit bars abut against the two sides of the pipeline, thereby facilitating the limiting of the two ends of the pipeline and preventing the pipeline from being seriously displaced due to the uneven outer wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the overall structure diagram of the utility model;

[0017] Figure 2 It is a top view of the structure of the utility model;

[0018] Figure 3 This is a structural diagram of the chassis of the utility model.

[0019] In the figure: 1, base frame; 2, first support frame; 3, first roller; 4, threaded rod; 5, second roller; 6, first motor; 7, second motor; 8, slide groove; 9, threaded sleeve; 10, limit block; 11, electric push rod; 12, bracket; 13, limit strip; 14, fixed frame; 15, second support frame. DETAILED DESCRIPTION

[0020] See also Figures 1 to 3 A submerged arc welding bracket comprises a base frame 1, the upper end surface of the base frame 1 is provided with two slide grooves 8 distributed on the left and right, the inside of the right end slide groove 8 is movably connected with a threaded rod 4 through a bearing, the outer wall of the threaded rod 4 is threadedly connected with a threaded sleeve 9, the upper end surface of the threaded sleeve 9 is fixedly connected with a first support frame 2, the upper end surface of the base frame 1 is fixedly connected with a second support frame 15 symmetrically distributed with the first support frame 2, and the insides of the first support frame 2 and the second support frame 15 are both movably connected with a first roller shaft 3 and a second roller shaft 5 through a bearing;

[0021] The left and right ends of the base frame 1 are fixedly connected with "L"-shaped brackets 12, and the opposite sides of the two brackets 12 are installed with electric push rods 11. The output ends of the two electric push rods 11 pass through the brackets 12 and are fixedly connected with limit bars 13.

[0022] In this embodiment: when in use, the threaded rod 4 is driven to rotate by the second motor 7, thereby driving the threaded sleeve 9 and the first support frame 2 to move, increasing the distance between the first support frame 2 and the second support frame 15, thereby increasing the stability of the larger pipe during rotation, and the two second rollers 5 assist the pipe rotation, which can further prevent the pipe from detaching from the rollers, further improving the stability of the pipe during rotation.

[0023] The two electric push rods 11 can respectively drive the limiting bars 13 to move relative to each other, so that the two limiting bars 13 abut against the two sides of the pipeline, thereby preventing the pipeline from being seriously displaced due to the uneven outer wall.

[0024] As a technical optimization solution of the present invention, a second motor 7 is installed on the front end surface of the base frame 1 , and the output end of the second motor 7 passes through the base frame 1 and is fixedly connected to the threaded rod 4 .

[0025] In this embodiment: the threaded rod 4 can be driven to rotate by the second motor 7 .

[0026] As a technical optimization solution of the utility model, the left end faces of the first support frame 2 and the second support frame 15 are both installed with first motors 6 , and the two first motors 6 respectively penetrate the first support frame 2 and the second support frame 15 and are fixedly connected to the first roller shaft 3 .

[0027] In this embodiment, the two first rollers 3 can be driven to rotate respectively by the two first motors 6 .

[0028] As a technical optimization solution of the present invention, the two first motors 6 rotate in the same direction.

[0029] In this embodiment, by making the two first motors 6 rotate in the same direction, the two first rollers 3 can be made to rotate in the same direction. By the cooperation of the two first rollers 3, the pipeline can be conveniently driven to rotate.

[0030] As a technical optimization solution of the utility model, the bottom end of the first support frame 2 is fixedly connected to a limiting block 10, and the limiting block 10 is slidably connected to the slide groove 8 at the left end through a slide rail.

[0031] In this embodiment: by slidingly connecting the limit block 10 with the slide groove 8 at the left end through a slide rail, the stability of the movement of the first support frame 2 can be increased.

[0032] As a technical optimization solution of the utility model, the rear end surface of the base frame 1 is fixedly connected with an “L”-shaped fixing frame 14 , and the upper end surface of the fixing frame 14 is installed with a controller.

[0033] In this embodiment, the controller is electrically connected to the first motor 6 , the second motor 7 and the electric push rod 11 , which makes the operation more convenient.

[0034] Working principle: When in use, firstly, the threaded rod 4 is driven to rotate by the second motor 7, thereby driving the threaded sleeve 9 and the first support frame 2 to move, increasing the distance between the first support frame 2 and the second support frame 15, thereby increasing the stability of the larger pipe during rotation, and the two second rollers 5 assist the pipe rotation, which can further prevent the pipe from detaching from the rollers, further improving the stability of the pipe during rotation.

[0035] The two electric push rods 11 can respectively drive the limiting bars 13 to move relative to each other, so that the two limiting bars 13 abut against the two sides of the pipeline, thereby preventing the pipeline from being seriously displaced due to the uneven outer wall.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A submerged arc welding bracket, comprising a base frame (1), characterized in that: The upper end surface of the base frame (1) is provided with two slide grooves (8) distributed on the left and right, the interior of the slide groove (8) at the right end is movably connected to a threaded rod (4) through a bearing, the outer wall of the threaded rod (4) is threadedly connected to a threaded sleeve (9), the upper end surface of the threaded sleeve (9) is fixedly connected to a first support frame (2), the upper end surface of the base frame (1) is fixedly connected to a second support frame (15) symmetrically distributed with the first support frame (2), and the interiors of the first support frame (2) and the second support frame (15) are both movably connected to a first roller shaft (3) and a second roller shaft (5) through bearings; The left and right ends of the base frame (1) are both fixedly connected to "L"-shaped brackets (12), and the two opposite sides of the two brackets (12) are both equipped with electric push rods (11), and the output ends of the two electric push rods (11) respectively penetrate the brackets (12) and are fixedly connected to the limit strips (13).

2. A submerged arc welding bracket according to claim 1, characterized in that: A second motor (7) is installed on the front end surface of the base frame (1), and an output end of the second motor (7) passes through the base frame (1) and is fixedly connected to the threaded rod (4).

3. A submerged arc welding bracket according to claim 1, characterized in that: The left end surfaces of the first support frame (2) and the second support frame (15) are both equipped with first motors (6), and the two first motors (6) respectively penetrate the first support frame (2) and the second support frame (15) and are fixedly connected to the first roller shaft (3).

4. A submerged arc welding bracket according to claim 3, characterized in that: The two first motors (6) rotate in the same direction.

5. The submerged arc welding bracket according to claim 1, characterized in that: The bottom end of the first support frame (2) is fixedly connected to a limit block (10), and the limit block (10) is slidably connected to a slide groove (8) at the left end via a slide rail.

6. The submerged arc welding bracket according to claim 1, characterized in that: An L-shaped fixing frame (14) is fixedly connected to the rear end surface of the base frame (1), and a controller is installed on the upper end surface of the fixing frame (14).

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