CN-121988947-A - Truss tower main column connecting plate positioning welding tool and using method

Abstract

The invention discloses a positioning welding tool for a main column connecting plate of a truss tower and a use method. According to the invention, the radial positioning of the tool is realized by matching the inner arc of the arc plate with the outer circle of the main column of the positioning welding tool. And the positioning pin is positioned through the fixation of the powerful magnet of the positioning welding tool, so that the positioning and the angle of the two truss tower main column connecting plates are ensured. The positions of the main column connecting plates in the axial direction and the end face direction are adjusted through a universal level meter. And the measuring distance values between the laser range finders and the flange plate are obtained through the laser range finders on two sides of the positioning welding tool, so that the positioning dimension in the axial direction is realized. The device can be used for rapid assembly and positioning welding of the truss tower type tower main column connecting plate, greatly shortens the time of auxiliary work such as scribing and aligning of personnel, and improves the efficiency and the manufacturing precision of accessory installation.

Inventors

• ZHANG MING
• Bi Ziming
• WU HANG
• BI DONGDONG
• ZHANG RONGTIAN
• ZHUO JIALIANG
• ZHANG XUEFENG
• Gao Gun
• LEI HANG
• ZHANG RUIGANG
• YANG ZHIWEI
• YU CHENG
• ZHANG XIAOFENG
• Jing Weiyu
• Qiang Pengke

Assignees

• 华能陕西吴起发电有限公司
• 西安热工研究院有限公司

Dates

Publication Date

20260508

Application Date

20260202

Claims (10)

1. 1. The positioning welding tool for the truss tower main column connecting plate is characterized in that the positioning welding tool (1) comprises two arc plates (101) which are symmetrically arranged, the two arc plates (101) are connected together through a plurality of pin shafts (108), and the inner arcs of the arc plates (101) are matched with the outer circle of a main column (3) to realize radial positioning of the tool; Two ends of two arc plates (101) are respectively provided with a top plate (106), each top plate (106) is provided with a powerful magnet (102) and a locating pin (103), the two arc plates are fixed through the powerful magnets (102) on the fixed-position welding tool (1), and the locating pins (103) are located to ensure the location and the angle of the two truss tower main column connecting plates (2).
2. 2. The welding fixture for positioning the main column connecting plate of the truss tower according to claim 1, wherein the welding fixture (1) further comprises a universal level meter (104), and the position of the main column connecting plate (2) in the axial direction and the end face direction is adjusted through the universal level meter (104).
3. 3. The truss tower main column connecting plate positioning welding tool according to claim 2, wherein the universal level gauge (104) is arranged between the two arc plates (101) through the level gauge mounting plate (109), and the level gauge mounting plate (109) and the arc plates (101) are provided with notch and positioning opening, so that the mounting accuracy can be ensured to be smaller than 0.1mm.
4. 4. The welding fixture for positioning the truss tower main column connecting plate according to claim 1, wherein the welding fixture (1) further comprises a laser range finder (105), a flange plate (4) is arranged at one end of the main column (3), and the measuring distance value between the main column and the flange plate (4) is obtained through the laser range finder (105) at two sides of the welding fixture (1), so that the positioning size in the axial direction is realized.
5. 5. The truss tower main column connecting plate positioning welding tool according to claim 4, wherein the laser range finder (105) is arranged between the two arc plates (101) through the range finder mounting plate (107), the range finder (105) is inclined to two sides by a set angle, visibility of operators is guaranteed, and the range finder mounting plate (107) and the arc plates (101) are provided with notch and positioning openings, so that mounting accuracy can be guaranteed to be smaller than 0.1mm.
6. 6. The welding fixture for positioning the main column connecting plates of the truss tower according to claim 4, wherein two laser range finders (105) are arranged.
7. 7. The truss tower main column connecting plate positioning welding tool according to claim 1, wherein the arc plate (101) is made of 4mm steel plates by laser cutting, and is provided with a lightening hole, a pin shaft hole, a level gauge and a range finder sheet metal mounting hole, and the machining precision is within 0.1 mm.
8. 8. The welding fixture for positioning the main column connecting plates of the truss tower according to claim 1, wherein the top plate (106) and the arc plate (101) are fixed by notch positioning spot welding.
9. 9. The welding fixture for positioning the main column connecting plates of the truss tower according to claim 1, wherein the powerful magnets (102) are mounted on the top plates (106) on two sides through bolts and used for adsorbing the main column connecting plates (2).
10. 10. The method for using the truss tower main column connecting plate positioning welding tool as claimed in any one of claims 1 to 9, which is characterized by comprising the following steps: Firstly, the inner arc of the arc plate (101) is matched with the outer circle of the main column (3) to realize radial positioning of the tool, then the tool is fixed through a powerful magnet (102) on the fixed-position welding tool (1), and the positioning pin (103) is positioned to ensure the positioning and the angle of the two truss tower main column connecting plates (2).

Description

Truss tower main column connecting plate positioning welding tool and using method Technical Field The invention belongs to the field of truss type wind power tower cylinder welding tool control, and particularly relates to a truss type tower main column connecting plate positioning welding tool and a using method thereof. Background With the diversified needs of wind power tower tubular type, truss type tower tubular designs appear and start trial production. The truss type tower drum is a wind turbine generator support structure formed by assembling structural steel dies in a blocking mode, and the core design of the truss type tower drum fuses the mechanical advantage of the truss structure and the convenience of modularized installation. The base part of the truss type tower barrel adopts polygonal layout (such as quadrangle), the side length ranges from 1/20 to 1/10 of the total height of the tower, and the truss type tower barrel is connected through a cross beam to form a closed equipment space, so that the overall stability is enhanced. The truss main body part comprises 3 or more upright posts, the upright post sections are connected through built-in flanges, and the length of a single section is controlled within 12 meters, so that the loading of a standard transport vehicle is facilitated. The web member system comprises a transverse support and a diagonal draw bar, wherein the crossing angle is 45-60 degrees, and the web member system is connected with a node of an annular plate by rivets to form a stable triangle mechanical unit. The fatigue resistance test proves that the transition section component can meet the fatigue load requirement of the fan in the 20-year running period, and ensures that the upper load is efficiently transferred to the lower structure. Due to the structural connection requirements, multiple angles and orientations of connection and support between the column members must be achieved. Therefore, in order to ensure the precision of the on-site installation, the manufacturing precision in the production process must be enhanced, the manufacturing error is ensured to be within the allowable range, the efficiency is improved, and the instability caused by the scribing operation is reduced. Disclosure of Invention The invention aims to provide a positioning welding tool for a main column connecting plate of a truss tower and a use method thereof, the distance and the angle are effectively and intuitively reflected, the time for manual scribing and measuring is greatly shortened, and the production efficiency is improved. And meanwhile, the positioning of the arc plate and the positioning pin is utilized, so that the installation precision is improved. In order to achieve the above purpose, the present invention adopts the following technical scheme: The positioning welding tool comprises two symmetrically arranged arc plates, wherein the two arc plates are connected together through a plurality of pin shafts, and the inner arcs of the arc plates are matched with the outer circle of the main column to realize radial positioning of the tool; The two ends of the two arc plates are respectively provided with a top plate, each top plate is provided with a powerful magnet and a locating pin, the two arc plates are fixed through the powerful magnets on the locating welding tool, and the locating pins are located to ensure the location and the angle of the two truss tower main column connecting plates. The invention further improves that the positioning welding tool also comprises a universal level meter, and the positions of the main column connecting plate in the axial direction and the end face direction are adjusted through the universal level meter. The invention is further improved in that the universal level is arranged between the two arc plates through the level mounting plate, and the level mounting plate and the arc plates are provided with the notch and the positioning opening, so that the mounting precision can be ensured to be less than 0.1mm. The invention further improves that the positioning welding tool also comprises a laser range finder, one end of the main column is provided with a flange plate, and the measuring distance value between the main column and the flange plate is obtained through the laser range finders at two sides of the positioning welding tool, so that the positioning size in the axial direction is realized. The invention is further improved in that the laser range finder is arranged between the two arc plates through the range finder mounting plate, the range finder inclines to two sides for setting an angle, the visibility of operators is ensured, the range finder mounting plate and the arc plates are provided with notch and positioning opening, and the mounting precision can be ensured to be less than 0.1mm. A further development of the invention is that the laser distance measuring device is provided with two. The invention is further improve