Welding device for tower foot of extra-high voltage power grid iron tower

Abstract

The utility model provides an extra-high voltage power grid iron tower foot welding device which comprises a welding robot, a base, a rotating platform and a mounting base, supports extending vertically upwards are arranged at the two transverse ends of the base, and the two ends of the rotating platform are rotationally connected with the two supports respectively. The mounting base is rotationally arranged on the rotating platform, a plurality of connecting parts which extend in the radial direction along the rotating center of the mounting base are arranged on the mounting base, the connecting parts are arranged at intervals in the circumferential direction, and sliding blocks which can slide along the connecting parts are arranged on the connecting parts; the sliding block is provided with a column part used for penetrating into a tower foot installation hole, and the column part is provided with a screw hole. Aiming at the defects in the prior art, the utility model provides the welding device for the tower foot of the extra-high voltage power grid iron tower, which is higher in efficiency and effectively ensures the welding quality.

Description

Technical Field

[0001] The utility model relates to a welding device for a tower foot of a steel tower. Background Art

[0002] A steel tower refers to a high tower made of steel materials, such as a steel pipe tower and an angle steel tower, etc., which are mainly used for the erection of communication or power lines. With the development of society, the development of power technology and the increasing demand for electricity, the ultra-high voltage power grid is the main development direction in the future. The so-called ultra-high voltage power grid refers to a power transmission network with an AC voltage of 1000 kV and a DC voltage of plus or minus 800 kV and above. Its advantage is that it can transmit electricity over a long distance, with a large capacity and low loss. However, the corresponding steel tower for the ultra-high voltage power grid has higher requirements for height and strength. The tower foot of the steel tower is an important component for connecting and supporting with the ground, which has a great impact on the stability and service life required for the steel tower and is the foundation for building the tower foot of the ultra-high voltage power grid steel tower. The tower foot usually includes a bottom plate and a vertical part. Installation holes are arranged at the four corners of the bottom plate. The vertical part is formed by multiple steel members cross-connected and vertically connected to the bottom plate. A total of eleven welds need to be welded for the entire tower foot. And in order to ensure the welding effect, the welds mainly adopt the form of bevels and require multi-layer and multi-pass welding. In the prior art, because welding needs to be carried out at different angles and positions of the tower foot, it is difficult for a robot to achieve, and manual welding is mainly used, which leads to the welding quality and efficiency being directly affected by the welding level and welding experience of the welding personnel, with low efficiency and difficult to guarantee the quality, and it has gradually become unsuitable for the current market environment. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a welding device for a tower foot of an ultra-high voltage power grid steel tower with higher efficiency and effectively ensuring the welding quality.

[0004] To achieve the above object, the utility model provides a welding device for a tower foot of an ultra-high voltage power grid steel tower, which includes a welding robot, and the welding robot includes a base, a rotating platform and a mounting seat. Vertical brackets extending upward are arranged at the two transverse ends of the base. The two ends of the rotating platform are respectively rotatably connected to the two brackets. The mounting seat is rotatably arranged on the rotating platform. A plurality of connecting parts extending radially along its rotation center are arranged on the mounting seat. The plurality of connecting parts are circumferentially spaced apart. A sliding block capable of sliding along it is arranged on the connecting part. A column part for penetrating into the installation hole of the tower foot is arranged on the sliding block, and a screw hole is arranged on the column part.

[0005] The advantages of adopting the above technical solution are as follows: By setting the base, the rotating platform and the mounting seat, brackets are provided at both lateral ends of the base, and both ends of the rotating platform are respectively rotatably connected to the two brackets. Then, the mounting seat is rotatably arranged on the rotating platform, so that while the rotating platform can rotate along the connection points with the brackets, the mounting seat on the rotating platform can also rotate relative to the rotating platform, enabling the mounting seat to be adjusted at various angles according to requirements. A plurality of connecting parts extending radially along the direction of its rotation center are provided on the mounting seat, and the plurality of connecting parts are arranged at intervals. Finally, sliding blocks capable of sliding along the connecting parts are provided on the connecting parts, and column parts are provided on the sliding blocks. After the column parts penetrate into the tower foot mounting holes, the sliding blocks can be further slid, so that the plurality of column parts on the sliding blocks form a clamping force on the bottom plate, and then the positioning of the tower foot and the mounting seat is completed through its screw holes and external bolts, ensuring the rapidity and stability of the positioning. Then, the rotating platform and / or the mounting seat can be rotated to adjust the angle and position of the tower foot, enabling it to cooperate with the welding robot for welding, without relying on the welding level and welding experience of the welding personnel, ensuring the welding efficiency and also the welding quality.

[0006] The utility model can be further configured as: a guiding long groove is provided on the connecting part, the guiding long groove extends along the length direction of the connecting part, a threaded operating rod with one end extending into the guiding long groove is penetrated through the connecting part, the threaded operating rod is in threaded engagement with the lower end of the sliding block, and the sliding block can be arranged to slide along the guiding long groove in a guiding manner.

[0007] Through further setting, a guiding long groove for the sliding block to slide along in a guiding manner is provided on the connecting part, the guiding long groove extends along the length direction of the connecting part, and a threaded operating rod with one end extending into the guiding long groove is penetrated through the connecting part, and the threaded operating rod is in threaded engagement with the lower end of the sliding block. Thus, when the threaded operating rod is rotated, the sliding block that is in guiding sliding fit with the guiding long groove will slide along the guiding long groove, forming an adjustment of the position of the sliding block, and being able to adapt to tower feet of different specifications.

[0008] The utility model can be further configured as: a step part is provided in the guiding long groove, the step part is formed by the side walls of the guiding long groove extending towards the midline direction, the threaded operating rod is penetrated through the position between the two step parts, the sliding block includes a side part, the lower end of the side part can be in abutting fit with the step part, and the end face of the side part can be in abutting fit with the side wall of the guiding long groove.

[0009] Through further setting, a step portion formed by extending from both side walls of the guiding long groove towards the midline direction is provided in the guiding long groove, and a side portion is provided on the sliding block, such that the lower end and the end face of the side portion are respectively in contact with the step portion and the side wall of the guiding long groove, thereby forming the guiding sliding of the sliding block and the guiding long groove, and preventing rotation under the drive of the threaded operating rod. On this basis, the setting of the step portion can also provide support when the sliding block is under pressure, avoiding the situation that the threaded operating rod is deformed under pressure.

[0010] The utility model can be further set as: a reinforcing rod connecting the two is provided between two adjacent connecting portions.

[0011] Through further setting, a reinforcing rod is provided between adjacent connecting portions, and the strength of the connecting portion is strengthened by the reinforcing rod, avoiding the situation that the connecting portion is deformed due to excessive pressure under the rotation of the rotating platform and / or the mounting seat.

[0012] The utility model can be further set as: a rotating shaft is provided on the rotating platform, a protective shell is provided on the mounting seat, the protective shell is rotationally connected to the rotating platform through a bearing, the rotating shaft is rotationally arranged driven by a motor, and the rotating shaft penetrates through the protective shell and forms a connection with the mounting seat.

[0013] Through further setting, a protective shell and a rotating shaft are respectively provided on the mounting seat and the rotating platform. On the basis of providing drive by connecting the rotating shaft driven by the motor through the protective shell, and then forming a rotational connection between the protective shell and the rotating platform through a bearing to strengthen the connection strength between the rotating platform and the mounting seat. When the rotating platform rotates with a large amplitude, the protective shell can provide support to better ensure the stability of operation.

[0014] The utility model can be further set as: the rotating platform includes a main body and extending portions at both ends of the main body, the mounting seat is arranged at the middle part of the main body, the extending portions extend in a direction perpendicular to the main body, and the rotating platform is rotationally connected to the bracket through the extending portions near the ends.

[0015] Through further setting, extending portions are provided on the rotating platform, and the extending portions extend in a direction perpendicular to the main body, such that the overall shape of the rotating platform is U-shaped. Then, the extending portions near the ends are rotationally connected to the bracket, such that the rotation center line of the rotating platform corresponds to the tower feet on the mounting seat, reducing the change in the position where the tower feet are located after the tower foot angle is adjusted, and correspondingly reducing the distance that the welding robot needs to move, facilitating the welding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view of an embodiment of the utility model;

[0017] Figure 2For the embodiment of the present utility model Figure 1 The sectional view taken along line A-A in the figure;

[0018] Figure 3 For the embodiment of the present utility model Figure 2 The enlarged view of part a in the figure;

[0019] Figure 4 The schematic diagram of the cooperation of the protective shell, the rotating shaft and the bearing in the embodiment of the present utility model;

[0020] Figure 5 The structural schematic diagram of the using state in the embodiment of the present utility model;

[0021] Wherein: welding robot 1; base 2; bracket 21; rotating platform 3; rotating shaft 31; main body 32; extension part 33; mounting seat 4; connecting part 41; guiding long groove 411; step part 412; sliding block 42; column part 421; side part 422; threaded operating rod 43; strengthening rod 44; protective shell 45; bearing 5. Specific embodiments

[0022] The embodiment of a special high-voltage power grid tower foot welding device of the present utility model is as Figures 1-5 shown: It includes a welding robot 1, a base 2, a rotating platform 3 and a mounting seat 4. Vertical brackets 21 extending upward are arranged at both transverse ends of the base 2. Both ends of the rotating platform 3 are respectively rotatably connected to the two brackets 21. The mounting seat 4 is rotatably arranged on the rotating platform 3. A plurality of connecting parts 41 extending radially along its rotation center are arranged on the mounting seat 4. The plurality of connecting parts 41 are circumferentially spaced apart. A sliding block 42 capable of sliding along it is arranged on the connecting part 41. A column part 421 for penetrating into the tower foot mounting hole is arranged on the sliding block 42, and a threaded hole is arranged on the column part 421. In this embodiment, the column part 421 is guided and telescopically arranged on the sliding block. Generally, the column part 421 retracts into the sliding block. When in use, through the cooperation of an external bolt and the threaded hole, the column part 421 is urged to extend.

[0023] A guiding long groove 411 is arranged on the connecting part 41. The guiding long groove 411 extends along the length direction of the connecting part 41. A threaded operating rod 43 with one end extending into the guiding long groove 411 is penetrated through the connecting part 41. The threaded operating rod 43 is in threaded engagement with the lower end of the sliding block 42. The sliding block 42 can be guided and slidably arranged along the guiding long groove 411.

[0024] A step portion 412 is provided in the guiding long groove 411. The step portion 412 is formed by extending from the side walls of the guiding long groove 411 towards the center line. The threaded operating rod 43 is disposed between the two step portions 412. The sliding block 42 includes a side portion 422. The lower end of the side portion 422 can be in abutting cooperation with the step portion 412, and the end face of the side portion 422 can be in abutting contact with the side wall of the guiding long groove 411.

[0025] A reinforcing rod 44 connecting the two is provided between two adjacent connecting portions 41.

[0026] A rotating shaft 31 is provided on the rotating platform 3. A protective housing 45 is provided on the mounting seat 4. The protective housing 45 is rotatably connected to the rotating platform 3 through a bearing 5. The rotating shaft is driven to rotate by a motor, and the rotating shaft 31 passes through the protective housing and forms a connection with the mounting seat 4.

[0027] The rotating platform 3 includes a main body 32 and extension portions 33 at both ends of the main body. The mounting seat 4 is disposed at the middle of the main body 32. The extension portions 33 extend in a direction perpendicular to the main body 32, and the rotating platform 3 is rotatably connected to the bracket 21 through the extension portions 33 near the ends.

[0028] The above examples are only one of the preferred specific examples of the present invention. The common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are included in the protection scope of the present invention.

Claims

1. A welding device for the foot of an ultra-high voltage power grid tower, comprising a welding robot, characterized in that: It includes a base, a rotating platform and a mounting seat, wherein brackets extending vertically upward are arranged at both ends of the base in a horizontal direction, and both ends of the rotating platform are respectively rotatably connected to two brackets, and the mounting seat is rotatably arranged on the rotating platform, and the mounting seat is provided with a plurality of connecting parts extending radially along its rotation center, and the plurality of connecting parts are arranged at intervals in the circumferential direction, and a sliding block capable of sliding along the connecting part is provided on the connecting part, and the sliding block is provided with a column part for penetrating into the tower foot mounting hole, and the column part is provided with a screw hole.

2. The UHV power grid tower foot welding device according to claim 1, characterized in that: The connecting part is provided with a long guide groove, which extends along the length direction of the connecting part. The connecting part is provided with a threaded operating rod with one end extending into the long guide groove. The threaded operating rod is threadedly connected with the lower end of the sliding block, and the sliding block can be guided and slid along the long guide groove.

3. The UHV power grid tower foot welding device according to claim 2, characterized in that: A step portion is provided in the guide long groove, and the step portion is formed by the two side walls of the guide long groove extending toward the center line direction. The threaded operating rod is passed through the two step portions. The sliding block includes a side portion, the lower end of the side portion can abut and cooperate with the step portion, and the end face of the side portion can abut and abut the side wall of the guide long groove.

4. The UHV power grid tower foot welding device according to claim 1 or 2, characterized in that: A reinforcing rod connecting two adjacent connecting parts is arranged between the two adjacent connecting parts.

5. The UHV power grid tower foot welding device according to claim 1 or 2, characterized in that: The rotating platform is provided with a rotating shaft, the mounting seat is provided with a protective shell, the protective shell is rotatably connected to the rotating platform through a bearing, the rotating shaft is driven to rotate by a motor, and the rotating shaft is passed through the protective shell and connected to the mounting seat.

6. The UHV power grid tower foot welding device according to claim 5, characterized in that: The rotating platform includes a main body and extensions at both ends of the main body, the mounting seat is arranged in the middle of the main body, the extension is extended in a direction perpendicular to the main body, and the rotating platform is rotatably connected with the bracket through the extension near the end.

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