Welding platform for outer longitudinal seam welding frame of wind power tower

Abstract

The invention relates to the technical field of wind power tower welding, and discloses a welding platform of a wind power tower outer longitudinal seam welding frame, which comprises a welding assembly and a recovery assembly, the welding assembly is used for welding a wind power tower, the recovery assembly is used for separating welding slag from buried materials, the welding assembly comprises a truss, and a slidable moving seat is arranged on the truss; a submerged arc welding machine is installed on the movable base, a pump is installed on a rack of the submerged arc welding machine, the input end of the pump is connected with an absorption pipe, the output end of the pump is connected with a discharge pipe, and a container for containing buried materials is arranged on the submerged arc welding machine. According to the buried material recycling device, buried materials can be automatically recycled and recycled, the situation that the buried materials are scattered is reduced through the arrangement of the first adhesive tape and the second adhesive tape, the collecting efficiency is improved, and the buried material recycling device is particularly suitable for buried material recycling of small-size wind power tower barrel sections.

Description

Technical Field

[0001] This invention relates to the field of wind turbine tower welding technology, and more particularly to a welding platform for a wind turbine tower external longitudinal seam welding frame. Background Technology

[0002] The welding platform of the wind turbine tower external longitudinal seam welding frame is a special work platform that provides stable support and a precise operating environment for welding the external longitudinal seams of wind turbine tower segments. It can ensure that the tower segments maintain the correct position and posture during the welding process, so that welders can perform welding operations conveniently and accurately.

[0003] In the existing submerged arc welding technology for wind turbine tower sections, although there is a material recycling mechanism, for small-diameter wind turbine tower sections, because the welding work is carried out on the outer circumference, the material will naturally slide down along the arc surface of the section, making it difficult to effectively recycle the material. This affects the normal supply and utilization of the material during the welding process, reduces welding efficiency, and may also cause material waste and increase cleaning costs.

[0004] Therefore, a welding platform for the external longitudinal seam welding frame of the wind turbine tower needs to be designed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a welding platform for the external longitudinal seam welding frame of wind turbine towers.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A welding platform for a wind turbine tower external longitudinal seam welding frame includes a welding assembly and a recycling assembly. The welding assembly is used for welding the wind turbine tower, and the recycling assembly is used for separating welding slag and embedded material. The welding assembly includes a truss with a sliding movable seat on it. A submerged arc welding machine is mounted on the movable seat. A pump is mounted on the frame of the submerged arc welding machine. The input end of the pump is connected to an absorption pipe, and the output end of the pump is connected to a discharge pipe. A container for holding embedded material is provided on the submerged arc welding machine. The end of the discharge pipe away from the pump is connected to the container. The end of the absorption pipe away from the pump is connected to an absorption hood. A notch is provided on the side of the absorption hood, and a collection structure is provided on one side of the absorption hood for collecting embedded material. The recycling assembly includes a belt conveyor with several roller frames installed on it. Rollers are installed at both ends of the belt conveyor. Two guide plates are fixed on the belt conveyor, both of which are inclined and positioned directly opposite the conveyor belt.

[0007] As a preferred embodiment of the present invention, the collecting structure includes a fixing plate with an installation opening. The welding head of the submerged arc welding machine passes through the installation opening and is fixed in the installation opening. Baffles are fixed on both sides of the fixing plate.

[0008] As a preferred embodiment of the present invention, a first adhesive strip is adhered to the absorption cover, and a second adhesive strip is adhered to each of the baffles.

[0009] As a preferred embodiment of the present invention, an observation port is provided on the fixing plate.

[0010] As a preferred embodiment of the present invention, an eccentric wheel is fixedly sleeved at the end of one of the roller shafts, and a separation component is provided at the discharge end of the belt conveyor. The separation component includes a housing, an installation frame is provided inside the housing, a filter screen is fixed on the installation frame, and a vibration component and a drive component are provided on the housing for vibrating the filter screen.

[0011] As a preferred embodiment of the present invention, the separation component further includes two fixing blocks, both of which are fixed on the mounting frame, and a rotating shaft is fixed inside the housing, with both fixing blocks rotatably mounted on the rotating shaft.

[0012] As a preferred embodiment of the present invention, the vibration assembly includes a fixed frame, which is fixed to a housing. The fixed frame has an opening, and a movable rod is slidably disposed in the opening. A pull rope is connected to the bottom end of the movable rod, and the end of the pull rope away from the movable rod is connected to a mounting frame. An end cap is fixed to the top end of the movable rod, and the end cap is connected to the fixed frame by a spring. A connecting rod is fixed to the end cap, and a vertical plate is fixed to the end of the connecting rod away from the end cap. An inclined surface is provided on the vertical plate. The housing has two collection drawers inside, which are used to collect welding slag and embedded material, respectively.

[0013] As a preferred embodiment of the present invention, the drive assembly includes a guide frame and a push rod. The guide frame is fixed to the side of the housing, and the push rod is slidably mounted on the guide frame. One end of the push rod is positioned opposite the eccentric wheel, and the other end is positioned opposite the inclined surface of the vertical plate.

[0014] As a preferred embodiment of the present invention, one of the collection drawers is located directly below the filter screen, and the other collection drawer is positioned opposite the distance between the mounting frame and the inner surface of the box.

[0015] As a preferred embodiment of the present invention, the end of the push rod near the fixed plate is rounded.

[0016] The present invention has the following beneficial effects: 1. In the welding assembly, by setting up structures such as baffles, absorption hoods, and pumps, the two baffles can block the buried material and prevent it from sliding down the arc surface of the cylinder segment, so that the buried material accumulates between the two baffles. After the pump is started, the used buried material can be extracted through the absorption pipe and absorption hood, and discharged back into the container through the discharge pipe, realizing the automatic recycling and reuse of buried material. In addition, the setting of the first and second adhesive strips reduces the scattering of buried material and improves the collection efficiency, which is especially suitable for the recycling of buried material in small-sized wind turbine tower cylinder segments. 2. In the recycling component, guide plates are installed on the belt conveyor. When the wind turbine tower section is placed on the roller frame, the two guide plates are located on both sides of the section. During the operation of the belt conveyor, the guide plates can guide the welding slag and other materials generated during welding, allowing the slag to slide down the guide plates onto the conveyor belt for easy collection later. 3. A separation component is installed at the discharge end of the belt conveyor. When cleaning the weld after welding, the welding slag and residual embedded material will fall into the box. The filter screen can separate the embedded material and welding slag. The embedded material falls through the mesh of the filter screen into the collection drawer below, while the welding slag falls into another collection drawer, so as to achieve separate collection, which is convenient for subsequent processing and reuse. 4. By setting up drive components and vibration components, when the belt conveyor is running, the roller shaft drives the eccentric wheel to rotate. The eccentric wheel periodically pushes the push rod, which in turn causes the fixed plate, end cap, etc. to move up and down the mounting frame, causing the filter screen to vibrate. The vibrating filter screen can more efficiently separate welding slag and embedded material, improving the separation effect and efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the welding platform for the longitudinal seam welding frame of the wind turbine tower proposed in this invention. Figure 1 ; Figure 2 This is a schematic diagram of the welding platform for the longitudinal seam welding frame of the wind turbine tower proposed in this invention. Figure 2 ; Figure 3 This is a schematic diagram of the welding assembly. Figure 4 This is a schematic diagram of the absorption hood and the collection structure; Figure 5 for Figure 4 Enlarged view of the structure at point A; Figure 6 This is a schematic diagram of the structure of the recycling component; Figure 7 This is a schematic diagram of the separation component and the belt conveyor. Figure 8 This is a schematic diagram of the structure of the separate components.

[0018] In the diagram: 1. Truss; 2. Movable seat; 3. Submerged arc welding machine; 41. Pump; 42. Absorption pipe; 421. Absorption hood; 422. Notch; 423. First rubber strip; 43. Discharge pipe; 441. Fixing plate; 442. Baffle; 443. Second rubber strip; 51. Belt conveyor; 511. Roller; 52. Eccentric wheel; 53. Guide plate; 61. Box; 62. Mounting frame; 621. Filter screen; 63. Fixing block; 64. Rotating shaft; 71. Fixing frame; 72. Movable rod; 73. Pull rope; 74. End cap; 75. Spring; 76. Connecting rod; 77. Vertical plate; 78. Guide frame; 79. Push rod. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Example 1: The welding platform for the longitudinal seam welding frame of the wind turbine tower disclosed in this example is shown in the figure. Figure 1-5 The system includes a welding assembly and a recycling assembly. The welding assembly is used for welding wind turbine towers, and the recycling assembly is used for separating welding slag and embedded material. The welding assembly includes a truss 1, on which a sliding seat 2 is mounted. A submerged arc welding machine 3 is mounted on the seat 2. The specific structure and working principle of the submerged arc welding machine 3 are existing technologies, implemented using conventional methods, and are not shown in the figure. A pump 41 is mounted on the frame of the submerged arc welding machine 3. The input end of the pump 41 is connected to an absorption pipe 42, and the output end of the pump 41 is connected to a discharge pipe 43. A container for holding embedded material is provided on the submerged arc welding machine 3. The end of the discharge pipe 43 away from the pump 41 is connected to the container. The end of the absorption pipe 42 away from the pump 41 is connected to the absorption cover 421. The side of the absorption cover 421 has a notch 422. A first adhesive strip 423 is adhered to the absorption cover 421. A collection structure is provided on one side of the absorption cover 421 for collecting the buried material. The collection structure includes a fixing plate 441. An installation port is provided on the fixing plate 441. The welding head of the submerged arc welding machine 3 passes through the installation port and is fixed in the installation port. Baffles 442 are fixed on both sides of the fixing plate 441. A second adhesive strip 443 is adhered to each baffle 442.

[0021] like Figure 1As shown, during the welding process, the submerged arc welding machine 3 is positioned above the weld seam of the wind turbine tower section. The second adhesive strips 443 on both baffles 442 are in contact with the wind turbine tower section, and the first adhesive strip 423 on the absorption cover 421 is also in contact with the wind turbine tower section. During welding, the embedded material is placed onto the weld seam. The two baffles 442 work together to block the embedded material, preventing it from sliding down the arc surface of the wind turbine tower section. Under the action of the two baffles 442, the embedded material accumulates between the two baffles 442. During welding, the pump 41 is started, and the material is absorbed... Pipe 42 and absorption hood 421 extract the used buried material and discharge it back into the container through discharge pipe 43, realizing automatic recycling and reuse of buried material. It should be noted that the setting of the first adhesive strip 423 and two second adhesive strips 443 can reduce the scattering of buried material and improve the collection efficiency of buried material. With this design, even when welding small-sized wind turbine tower sections, the device can realize automatic recycling of buried material. Furthermore, the fixed plate 441 is provided with an observation port to facilitate the staff to observe the welding status.

[0022] The recycling component includes a belt conveyor 51. The specific structure and working principle of the belt conveyor 51 are existing technologies, implemented using conventional methods, and are not shown in the figure. Further details will not be provided here. Several roller frames are installed on the belt conveyor 51 to support the wind turbine tower sections. Rollers 511 are installed at both ends of the belt conveyor 51. An eccentric wheel 52 is fixedly fitted at the end of one of the rollers 511. Two guide plates 53 are fixed on the belt conveyor 51, both of which are inclined and directly facing the conveyor belt of the belt conveyor 51. Figure 1 As shown, when the wind turbine tower section is placed on several roller frames, the two guide plates 53 are located exactly on both sides of the wind turbine tower section.

[0023] The implementation principle of this embodiment is as follows: When the welding platform of the wind turbine tower outer longitudinal seam welding frame is working, the submerged arc welding machine 3 of the welding assembly is located above the weld seam of the wind turbine tower section. Its welding head passes through the mounting port of the fixing plate 441 and is fixed. The second rubber strip 443 on the two baffles 442 and the first rubber strip 423 on the absorption cover 421 are in contact with the wind turbine tower section. During welding, the embedded material is put into the weld seam. The two baffles 442 block the embedded material to prevent it from sliding down along the arc surface of the section, so that the embedded material accumulates between the two baffles 442. At the same time, the pump 41 is started, and the used embedded material is extracted through the absorption pipe 42 and the absorption cover 421 and discharged back to the submerged arc welding machine through the discharge pipe 43. In the container for containing buried material, automatic recycling and reuse of buried material are realized. The first rubber strip 423 and the second rubber strip 443 reduce the scattering of buried material and improve collection efficiency. The observation port on the fixed plate 441 facilitates the observation of the welding status by the staff. In the recycling component, the wind turbine tower section is placed on several roller frames of the belt conveyor 51. At this time, two guide plates 53 are located on both sides of the section. The rollers 511 at both ends of the belt conveyor 51 rotate, and the eccentric wheel 52 at the end of one of the rollers 511 rotates accordingly. During the operation of the belt conveyor 51, the guide plates 53 can guide the welding slag and other materials generated during welding, and work together with the whole device to realize the functions of welding and buried material recycling.

[0024] Example 2: Based on Example 1, this example discloses a welding platform for the welding frame of the outer longitudinal seam of a wind turbine tower, such as... Figure 6-8As shown, the discharge end of the belt conveyor 51 is equipped with a separation component, which includes a housing 61. Inside the housing 61 is a mounting frame 62, on which a filter screen 621 is fixed. One end of the mounting frame 62 has a gap with the inner surface of the housing 61. Two fixing blocks 63 are fixed to the top surface of the mounting frame 62. A rotating shaft 64 is fixed inside the housing 61. Both fixing blocks 63 are rotatably mounted on the rotating shaft 64. The arrangement of the two fixing blocks 63 and the rotating shaft 64 allows the mounting frame 62 to rotate, facilitating the vibration of the filter screen 621. A vibration component is provided on the housing 61 to vibrate the filter screen 621. The vibration component includes a fixing frame 71, which is fixed to the housing 61. An opening is provided on the fixing frame 71, and a movable rod 72 is slidably mounted in the opening. The bottom end of the movable rod 72 is connected to a pull rope 73. The end of the pull rope 73 away from the movable rod 72 is connected to the mounting frame 62. The top end of the movable rod 72 is fixed with an end cap 74. The end cap 74 is connected to the fixed frame 71 by a spring 75. In the initial state, the movable rod 72 pulls the mounting frame 62 through the pull rope 73, so that the mounting frame 62 is in an inclined state. A connecting rod 76 is fixed on the end cap 74. A vertical plate 77 is fixed on the end of the connecting rod 76 away from the end cap 74. An inclined surface is provided on the vertical plate 77. The inside of the box 61 is provided with two collection drawers. One collection drawer is located directly below the filter screen 621. This collection drawer is used to collect residual embedded material. The other collection drawer is set directly opposite the gap between the mounting frame 62 and the inner surface of the box 61. This collection drawer is used to collect welding slag.

[0025] A drive assembly is provided on the housing 61. The drive assembly includes a guide frame 78 and a push rod 79. The guide frame 78 is fixed to the side of the housing 61, and the push rod 79 is slidably mounted on the guide frame 78. One end of the push rod 79 is positioned opposite the eccentric wheel 52, and the other end is positioned opposite the inclined surface of the vertical plate 77. The welding platform of the wind turbine tower outer longitudinal seam welding frame proposed in this invention also has the function of automatically separating welding slag and embedded material. After welding is completed, the workers need to clean the welding slag on the weld. During the cleaning process, the welding slag will naturally slide down along the arc surface of the cylinder section. During the sliding of the welding slag, the two guide plates 53 are welded together. The slag provides a guide, allowing the welding slag to slide down the conveyor belt of the belt conveyor 51 along the two guide plates 53. When the belt conveyor 51 is running, it can drive the welding slag to move and fall into the box 61. At the same time, the embedded material remaining on the welding slag will also fall into the box 61 along with the welding slag. The box 61 is equipped with a filter screen 621. When the welding slag and embedded material slide onto the filter screen 621, the embedded material can fall through the mesh of the filter screen 621 into the collection drawer below the filter screen 621, while the welding slag will fall through the filter screen 621 into another collection drawer, realizing the separate collection of welding slag and embedded material.

[0026] Furthermore, when the belt conveyor 51 is running, the roller 511 rotates, driving the eccentric wheel 52 to rotate. When the eccentric wheel 52 rotates, it periodically pushes the push rod 79. When the eccentric wheel 52 pushes the push rod 79, the push rod 79 pushes the inclined surface of the fixed plate 441. When the fixed plate 441 is pushed, it can move upward and drive the end cap 74 to move upward through the connecting rod 76. When the end cap 74 moves upward, it can pull the mounting frame 62 through the movable rod 72 and the pull rope 73, causing the mounting frame 62 to rotate. When the eccentric wheel 52 separates from the fixed plate 441, the end cap 74 returns to its original position under the action of the spring 75. At this time, the movable rod 72 no longer applies tension to the mounting frame 62 through the pull rope 73, and the mounting frame 62 naturally returns to its original position. In summary, with the operation of the belt conveyor 51, the mounting frame 62 will continuously move up and down to achieve a vibration effect, causing the filter screen 621 to vibrate. The vibrating filter screen 621 can more efficiently separate welding slag and embedded material.

[0027] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A welding platform for the longitudinal seam welding frame of a wind turbine tower, characterized in that, The system includes a welding assembly and a recycling assembly. The welding assembly is used to weld wind turbine towers, and the recycling assembly is used to separate welding slag and embedded material. The welding assembly includes a truss (1), on which a sliding movable seat (2) is provided. A submerged arc welding machine (3) is installed on the movable seat (2). A pump (41) is installed on the frame of the submerged arc welding machine (3). An absorption pipe (42) is connected to the input end of the pump (41), and a discharge pipe (43) is connected to the output end of the pump (41). A container for containing embedded material is provided on the submerged arc welding machine (3). The end of the discharge pipe (43) away from the pump (41) is connected to the container. An absorption hood (421) is connected to the end of the absorption pipe (42) away from the pump (41). A notch (422) is provided on the side of the absorption hood (421), and a collection structure is provided on one side of the absorption hood (421) for collecting embedded material. The recycling assembly includes a belt conveyor (51) with several roller frames installed on it. Rollers (511) are installed at both ends of the belt conveyor (51). Two guide plates (53) are fixed on the belt conveyor (51). Both guide plates (53) are inclined and are positioned directly opposite the conveyor belt of the belt conveyor (51).

2. The welding platform for the longitudinal seam welding frame of the wind turbine tower according to claim 1, characterized in that, The collecting structure includes a fixing plate (441), on which an installation port is provided. The welding head of the submerged arc welding machine (3) passes through the installation port and is fixed in the installation port. Baffles (442) are fixed on both sides of the fixing plate (441).

3. The welding platform for the longitudinal seam welding frame of the wind turbine tower according to claim 2, characterized in that, A first adhesive strip (423) is attached to the absorption cover (421), and a second adhesive strip (443) is attached to each of the baffles (442).

4. The welding platform for the longitudinal seam welding frame of the wind turbine tower according to claim 2, characterized in that, An observation port is provided on the fixing plate (441).

5. The welding platform for the longitudinal seam welding frame of the wind turbine tower according to claim 1, characterized in that, An eccentric wheel (52) is fixedly fitted at the end of one of the rollers (511). A separation component is provided at the discharge end of the belt conveyor (51). The separation component includes a housing (61). An installation frame (62) is provided inside the housing (61). A filter screen (621) is fixed on the installation frame (62). A vibration component and a drive component are provided on the housing (61) to make the filter screen (621) vibrate.

6. The welding platform for the longitudinal seam welding frame of the wind turbine tower according to claim 5, characterized in that, The separation assembly also includes two fixing blocks (63), both of which are fixed on the mounting frame (62). A rotating shaft (64) is fixed inside the housing (61), and both fixing blocks (63) are rotatably mounted on the rotating shaft (64).

7. The welding platform for the longitudinal seam welding frame of the wind turbine tower according to claim 6, characterized in that, The vibration assembly includes a fixed frame (71) fixed to a housing (61). The fixed frame (71) has an opening, and a movable rod (72) is slidably arranged in the opening. A pull rope (73) is connected to the bottom end of the movable rod (72). The end of the pull rope (73) away from the movable rod (72) is connected to the mounting frame (62). An end cap (74) is fixed to the top end of the movable rod (72). The end cap (74) is connected to the fixed frame (71) by a spring (75). A connecting rod (76) is fixed to the end cap (74). A vertical plate (77) is fixed to the end of the connecting rod (76) away from the end cap (74). An inclined surface is provided on the vertical plate (77). The housing (61) has two collection drawers inside, which are used to collect welding slag and embedded material, respectively.

8. The welding platform for the longitudinal seam welding frame of the wind turbine tower according to claim 7, characterized in that, The drive assembly includes a guide frame (78) and a push rod (79). The guide frame (78) is fixed to the side of the housing (61). The push rod (79) is slidably mounted on the guide frame (78). One end of the push rod (79) is positioned opposite the eccentric wheel (52), and the other end is positioned opposite the inclined surface of the vertical plate (77).

9. The welding platform for the longitudinal seam welding frame of the wind turbine tower according to claim 7, characterized in that, One of the collection drawers is located directly below the filter (621), and the other collection drawer is positioned opposite the distance between the mounting frame (62) and the inner surface of the housing (61).

10. The welding platform for the longitudinal seam welding frame of the wind turbine tower according to claim 8, characterized in that, The push rod (79) has a rounded corner at one end near the fixed plate (441).

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