Pipe welding support frame

Abstract

The utility model relates to a pipe welding supporting frame which structurally comprises a machine frame, installation frames are arranged at the two ends of the machine frame respectively, a swing frame is connected to the installation frames in a rotating mode, two rolling wheels are connected to the swing frame in a coupling mode, end frames are arranged at the two ends of the machine frame respectively, and telescopic supporting mechanisms are arranged on the end frames. Side frames are arranged on the two sides of the machine frame respectively, telescopic elements are arranged on the side frames, universal wheels are arranged on the telescopic elements, a driving element is arranged on the machine frame, an output shaft of the driving element is concentric with a rotating shaft of one swing frame, and the output shaft of the driving element is provided with a rotating shaft of the other swing frame. And the driving element is in transmission connection with one roller on the swinging frame through a transmission mechanism. The pipeline butt-welding device is simple in structure, convenient to move, suitable for pipelines with different diameters, capable of achieving automatic rotation of the pipelines in the pipeline butt-welding process and capable of improving welding efficiency.

Description

Technical Field

[0001] The utility model relates to a pipe welding auxiliary tool, in particular to a pipe welding support frame. Background Art

[0002] Pipe welding construction generally requires an auxiliary support frame for support. The pipe is placed on the support frame, and the pipe is rotated to achieve the butt welding of two sections of pipe. The existing welding support frame is difficult to move and cannot be conveniently adjusted. At the same time, although the existing support frame can adapt to pipes of various specifications, it cannot stably support large pipes. Therefore, there is an urgent need for a pipe welding support frame that can be flexibly moved, suitable for pipes of various specifications, and can stably support large pipes. Utility Model Content

[0003] The purpose of the utility model is to provide a pipe welding support frame to solve the problems that the existing welding support frame is difficult to move and cannot stably support large pipelines.

[0004] The utility model is implemented as follows: a pipe welding support frame comprises a frame, mounting frames are respectively arranged at both ends of the frame, a swing frame is rotatably connected to the mounting frame, two rollers are axially connected to the swing frame, end frames are respectively arranged at both ends of the frame, a telescopic support mechanism is arranged on the end frames, side frames are respectively arranged on both sides of the frame, telescopic elements are arranged on the side frames, universal wheels are arranged on the telescopic elements, a driving element is arranged on the frame, the output shaft of the driving element is concentric with the rotating shaft of one of the swing frames, and the driving element is transmission-connected to a roller on the swing frame through a transmission mechanism.

[0005] For further improvement of the pipe welding support frame of the utility model, the telescopic support mechanism includes a screw threadedly connected to the end frame, a support seat is arranged at the lower end of the screw, and an operating part is arranged at the upper end of the screw, and the height of the support seat is adjusted by rotating the screw.

[0006] For further improvement of the pipe welding support frame of the utility model, the driving element includes a motor and a reducer, the transmission mechanism includes a driving wheel arranged on the output shaft of the reducer and a driven wheel arranged on the roller shaft, and the driving wheel and the driven wheel are connected by a transmission member.

[0007] For further improvement of the pipe welding support frame of the utility model, the driving wheel and the driven wheel are sprocket wheels, and the transmission member is a chain.

[0008] For further improvement of the pipe welding support frame of the utility model, two side frames are respectively arranged on both sides of the frame, and the telescopic elements installed on each side frame are cylinders or hydraulic cylinders, and the cylinders or hydraulic cylinders rise and fall synchronously.

[0009] For further improvement of the pipe welding support frame of the utility model, the side edge connecting the two rollers on the swing frame is an arc-shaped edge concave inwardly toward the rotation center direction of the swing frame.

[0010] For further improvement of the pipe welding support frame of the utility model, an extension frame is arranged on the frame, and the driving element is fixed on the extension frame.

[0011] The utility model is used for butt welding of pipelines. Generally, two support frames of the utility model jointly support one pipeline. When in use, the universal wheels are first extended downward by the telescopic element to lift the utility model as a whole off the ground, so that the support frame can be conveniently moved. After the utility model is moved to a desired position, the telescopic element is controlled to retract the universal wheels, so that the frame of the utility model contacts the ground. When auxiliary support is needed, the telescopic support mechanism is adjusted to make the support seat contact the ground, thereby assisting the stable support of the frame.

[0012] After the position of the utility model is fixed, the pipeline is placed on the utility model, and the pipeline is supported by two sets of rollers on both sides. The pipeline automatically adapts to the diameter of the pipeline through the swing of the swing frame. The two swing frames act simultaneously to realize the centering and alignment of the pipeline. When the diameter of the pipeline is large, the swing frame swings outward and makes the four rollers contact with the pipeline at the same time, so as to stably support the pipeline.

[0013] When welding, the driving element is started, and the driving element drives a roller to rotate through transmission, thereby driving the pipe to rotate around its own axis. The welding operator or welding equipment only needs to perform welding operations in one position. After the pipe rotates one circle, the butt welding operation of the two sections of the pipe can be completed.

[0014] The utility model has a simple structure and is easy to move, and can stably support pipes with larger diameters, and can realize automatic rotation of the pipes during pipe butt welding, thereby improving welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model.

[0016] Figure 2 It is a transmission structure diagram of the driving element of the utility model.

[0017] Figure 3 It is a structural diagram of the utility model in a movable state.

[0018] Figure 4It is a schematic diagram of the utility model that the swing frame swings to adapt to pipes with different diameters.

[0019] In the figure: 1. frame; 2. mounting frame; 3. swing frame; 4. roller; 5. driving element; 6. transmission mechanism; 7. side frame; 8. telescopic element; 9. universal wheel; 10. end frame; 11. screw; 12. support; 13. operating part; 14. pipeline; 1-1. extension frame; 5-1. motor; 5-2. reducer; 6-1. driving wheel; 6-2. driven wheel; 6-3. transmission part. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] like Figure 1 , Figure 2 as well as Figure 3 As shown, the utility model is a pipe welding support frame, including a frame 1, with upwardly extending mounting frames 2 respectively arranged at both ends of the frame 1, and swing frames 3 rotatably connected to the mounting frames 2, and the two swing frames 3 are respectively located at the left and right ends of the frame 1, and two rollers 4 are axially connected to each swing frame 3, and the two rollers 4 on each swing frame 3 form a group. When the pipe 14 is placed on the utility model, it is supported by the two groups of rollers 4.

[0022] The two swing frames 3 are symmetrically arranged, and the two rollers 4 on the swing frames 3 and the rotation center of the swing frames 3 are arranged in a triangle. When supporting the pipe 14, the two rollers 4 on the swing frames 3 are in contact with the outer wall of the pipe 14 at the same time, and the two groups of rollers 4 act on the pipe 14 together to align the pipe 14. Figure 4 As shown, when pipes 14 of different diameters are placed, the swinging frame 3 swings to keep the two sets of rollers 4 in contact with the pipes 14, so that the utility model is suitable for pipes 14 of different diameters. When the diameter of the pipe 14 is large, the two swinging frames 3 swing outward at a large angle, which can maintain the contact support between the two sets of rollers 4 and the pipe 14, thereby ensuring stable support for the pipe 14.

[0023] Mounting frames 2 are respectively arranged on the front and rear sides of the left and right ends of the frame 1. The mounting frames 2 are grouped in pairs. A rotating shaft is commonly installed on two mounting frames 2 in a group. Two swing frames 3 are installed on one rotating shaft. The frame 1 is installed between the two swing frames 3 through its own rotating shaft.

[0024] End frames 10 are respectively arranged at the left and right ends of the frame 1 , and telescopic support mechanisms are arranged on the end frames 10 . After the position of the frame 1 is determined, the telescopic support mechanisms are used to provide auxiliary support to the frame 1 or adjust the overall height of the frame 1 .

[0025] The telescopic support mechanism includes a screw rod 11 threadedly connected to the end frame 10, a support seat is arranged at the lower end of the screw rod 11, and an operating part 13 is arranged at the upper end of the screw rod 11, and the height of the support seat is adjusted by rotating the screw rod 11. The operating part 13 is a multi-prism structure, and the screw rod 11 can be rotated by a wrench. Alternatively, a hand wheel is installed on the operating part 13 for easy operation.

[0026] Furthermore, the support 12 is connected to the lower end of the screw 11 through a thrust bearing, so that the support 12 can rotate without following the screw 11 , and when the support 12 is in contact with the ground, the height can be adjusted by only rotating the screw 11 .

[0027] In order to facilitate movement, side frames 7 are respectively provided on the front and rear sides of the frame 1, and telescopic elements 8 are provided on the side frames 7, and universal wheels 9 are provided on the telescopic elements 8. Two side frames 7 are respectively provided on both sides of the frame 1, and the telescopic elements 8 installed on each side frame 7 are cylinders or hydraulic cylinders, and the cylinders or hydraulic cylinders rise and fall synchronously.

[0028] The pneumatic cylinder or hydraulic cylinder is controlled to rise and fall synchronously through a pneumatic control system or a hydraulic control system.

[0029] The universal wheel 9 can be extended downward by the telescopic element 8, and the extended universal wheel 9 lifts the frame 1 as a whole off the ground, so that the position of the frame 1 can be conveniently moved. After moving to the predetermined position, the universal wheel 9 is retracted upward by the telescopic element 8, and the frame 1 contacts the ground again.

[0030] A driving element 5 is arranged on the frame 1 , the output shaft of the driving element 5 is coaxial with the rotation axis of a swing frame 3 , and the driving element 5 is drivingly connected to a roller 4 on the swing frame 3 via a transmission mechanism 6 .

[0031] Since the swing frame 3 will swing around its own rotation axis when adapting to pipes 14 of different diameters, the output shaft of the driving element 5 is concentric with the rotation axis of the swing frame 3, so that no matter how the swing frame 3 swings, the driving element 5 can maintain a transmission relationship with the roller 4 through the transmission element.

[0032] The driving element 5 includes a motor 5-1 and a reducer 5-2, and the transmission mechanism 6 includes a driving wheel 6-1 arranged on the output shaft of the reducer 5-2 and a driven wheel 6-2 arranged on the rotating shaft of the roller 4, and the driving wheel 6-1 and the driven wheel 6-2 are connected through a transmission member 6-3. The motor 5-1 drives the driving wheel 6-1 to rotate, and the driving wheel 6-1 drives the rotating shaft of a roller 4 to rotate through the transmission member 6-3, thereby driving the roller 4 to rotate. The pipeline 14 located on the utility model can be driven to rotate around its own axis by rotating only one roller 4.

[0033] The driving wheel 6-1 and the driven wheel 6-2 are sprocket wheels, and the transmission member 6-3 is a chain, or the driving wheel 6-1 and the driven wheel 6-2 are pulleys or synchronous pulleys, and the transmission member 6-3 is a belt or a synchronous belt.

[0034] Since the motor 5-1 and the reducer 5-2 need to be set on one side of the frame 1, an extension frame 1-1 is set on the frame 1. The extension frame 1-1 is located on the front or rear side of the frame 1 and at one end of the frame 1. The motor 5-1 and the reducer 5-2 are fixed on the extension frame 1-1.

[0035] The side edge connecting the two rollers 4 on the swing frame 3 can be a straight edge, or a curved edge concave inwardly toward the rotation center direction of the swing frame 3. When it is a curved edge, the pipe 14 placed on the utility model can be avoided, especially when the diameter of the pipe 14 is small, the side wall of the pipe 14 may interfere with the common tangent line of the two rollers 4. Designing the side edge that may interfere as a curved structure can avoid the problem of the pipe 14 contacting the swing frame 3 when the diameter of the pipe 14 is small.

[0036] The utility model is used for butt welding of a pipe 14, and the use process is as follows: two utility models are respectively arranged on both sides of the butt operation position, and the universal wheel 9 is first extended downward by the telescopic element 8 to lift the utility model as a whole off the ground, and the support frame is moved so that all the support frames are located in the length direction of the pipe 14; after the utility model is moved to the desired position, the telescopic element 8 is controlled to retract the universal wheel 9, so that the frame 1 of the utility model contacts the ground, and when auxiliary support is required, the telescopic support mechanism is adjusted to make the support seat contact the ground, thereby assisting the stable support of the frame 1; the pipe 14 is placed between the two groups of rollers 4, and the pipe 14 is supported by the two groups of rollers 4 on both sides, and the pipe 14 is automatically adapted to the diameter of the pipe 14 through the swing of the swing frame 3. The two swing frames 3 act simultaneously to realize the centering and alignment of the pipe 14; the driving element 5 is started, and the driving element 5 drives a roller 4 to rotate through transmission, thereby driving the pipe 14 to rotate around its own axis, and the welding operator or welding equipment only needs to perform welding operation at one position, and the butt welding operation of the two sections of the pipe 14 can be completed after the pipe 14 rotates one circle.

[0037] The utility model has a simple structure and is easy to move, and can stably support a pipe 14 with a larger diameter, and can realize automatic rotation of the pipe 14 during the butt welding of the pipe 14, thereby improving welding efficiency.

Claims

1. A pipe welding support frame, characterized in that: It includes a frame, mounting frames are respectively provided at both ends of the frame, a swing frame is rotatably connected to the mounting frames, two rollers are axially connected to the swing frame, end frames are respectively provided at both ends of the frame, a telescopic support mechanism is provided on the end frames, side frames are respectively provided on both sides of the frame, telescopic elements are provided on the side frames, universal wheels are provided on the telescopic elements, a driving element is provided on the frame, an output shaft of the driving element is concentric with a rotating shaft of one of the swing frames, and the driving element is transmission-connected to a roller on the swing frame through a transmission mechanism.

2. The pipe welding support frame according to claim 1, characterized in that: The telescopic support mechanism includes a screw rod threadedly connected to the end frame, a support seat is arranged at the lower end of the screw rod, and an operating part is arranged at the upper end of the screw rod. The height of the support seat is adjusted by rotating the screw rod.

3. The pipe welding support frame according to claim 1, characterized in that: The driving element includes a motor and a reducer, and the transmission mechanism includes a driving wheel arranged on the output shaft of the reducer and a driven wheel arranged on the rotating shaft of the roller, and the driving wheel and the driven wheel are connected through a transmission member.

4. The pipe welding support frame according to claim 3, characterized in that: The driving wheel and the driven wheel are sprockets, and the transmission member is a chain.

5. The pipe welding support frame according to claim 1, characterized in that: Two side frames are respectively arranged on both sides of the frame, and the telescopic elements installed on each side frame are cylinders or hydraulic cylinders, and the cylinders or hydraulic cylinders rise and fall synchronously.

6. The pipe welding support frame according to claim 1, characterized in that: The side edges of the swing frame connecting the two rollers are arc-shaped edges concave inwardly toward the rotation center direction of the swing frame.

7. The pipe welding support frame according to claim 1, characterized in that: An extension frame is arranged on the frame, and the driving element is fixed on the extension frame.

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