Steel welding device for wind power generation supporting tower drum

Abstract

The invention discloses a wind power generation supporting tower tube steel welding device, and belongs to the field of welding, the wind power generation supporting tower tube steel welding device comprises a frame, the upper end of the frame is fixedly provided with a plurality of downward hydraulic rods, the output ends of the hydraulic rods are fixedly connected with a welding ring at the same time, a bracket is arranged below the frame, and the upper end of the bracket is fixedly connected with a shaping disc; a tower drum is placed at the upper end of the shaping disc, the tower drum is sleeved with the welding ring, the welding ring comprises an embracing ring, a plurality of symmetrically-distributed bag storage grooves are formed in the side wall of the inner side of the embracing ring, air bags are connected into the bag storage grooves in a sealed mode, an air pump is installed on one side of the frame, and the air pump communicates with the air bags through air pipes. The tower barrel does not need to rotate, the welding head automatically moves to achieve the welding purpose, the welding head can always face the position of the vertical seam, deviation is avoided, the welding quality is ensured, and automatic air blowing heat dissipation can be conducted according to the real-time temperature of the welding seam.

Description

Technical Field

[0001] The invention relates to the field of welding, and more particularly to a wind power generation supporting tower steel welding device. Background Art

[0002] The wind turbine tower is the tower pole of wind power generation. It mainly plays a supporting role in the wind turbine generator set and absorbs the vibration of the set. The wind tower is generally cut by a CNC cutting machine. The thick plate needs to be beveled. After the plate is rolled by the rolling machine, spot welding, positioning, and confirmation are carried out for the welding of the inner and outer longitudinal seams. After the roundness inspection, if there is a problem, a secondary rounding is carried out. After the single-section cylinder is welded, the hydraulic group is used to assemble the roller frame for spot welding, the inner and outer circumferential seams are welded, and the straightness and other tolerances are checked. The flange is welded, and non-destructive testing and flatness inspection of the weld are carried out. After sandblasting and painting, the internal parts are installed and the finished product is inspected, and finally transported to the installation site.

[0003] In the prior art, when welding a tower, a roller support frame is usually used to fix and support the tower, and the tower is driven to rotate to achieve the purpose of welding. However, the tower is very thick and heavy, requiring a large driving force, and it is difficult to rotate smoothly. After welding, the weld cannot be automatically and automatically dissipated according to the temperature of the weld. In addition, once the welding head is offset during welding, it will affect the welding quality of the tower.

[0004] Therefore, a wind power generation support tower steel welding device is proposed to improve the above problems. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a wind power generation support tower steel welding device, which can stably support the tower without the need for tower rotation. The welding head moves automatically to achieve the welding purpose, and can always keep the welding head directly opposite the vertical seam position without deviation, thereby ensuring the welding quality. It can also automatically blow air to dissipate heat according to the real-time temperature at the weld.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A wind power generation support tower steel welding device comprises a frame, wherein a plurality of downwardly arranged hydraulic rods are fixedly installed on the upper end of the frame, and the output ends of the plurality of hydraulic rods are simultaneously fixedly connected to welding rings, a bracket is arranged below the frame, a shaping disk is fixedly connected to the upper end of the bracket, a tower is placed on the upper end of the shaping disk, and the welding ring is sleeved on the outside of the tower, the welding ring comprises an embracing ring, a plurality of symmetrically distributed storage tanks are provided on the inner side wall of the embracing ring, and an air bag is sealedly connected to the inside of the storage tank, an air pump is installed on one side of the frame, and the air pump is connected to the air bag through an air pipe, a groove is also provided on the embracing ring at a position between the plurality of air bags, and the groove is directly opposite to the vertical seam position of the tower, a welding head is installed on the side wall of the groove, an air duct is provided in the middle of the inner wall between the groove and the air bag, an electromagnetic valve is installed inside the air duct, an adaptive air release member is fixedly connected to the inner wall of the air duct close to the groove, and a heat conductive block connected to the adaptive air release member is fixedly inlaid on the side wall of the groove; The tower is placed on the shaping plate by means of a lifting mechanism, so as to limit and fix the tower. At the same time, the vertical seam of the tower is aligned with the position of the welding head. At this time, the hydraulic rod pushes the welding ring down, and the welding ring is sleeved on the surface of the tower. The air pump supplies air to the air bag contained in the side wall of the welding ring through the air pipe. The air bag gradually deforms to an expanded state, thereby abutting against the surface of the tower, limiting the vertical position of the welding head to prevent the welding head from angularly shifting during the descent process, thereby ensuring the welding quality. The hydraulic rod continues to descend, causing the welding head to move in a straight line, and the entire vertical seam is welded without moving the bulky tower, and the welding stability is higher. After welding is completed, the hydraulic rod rises to drive the entire The welding ring moves as a whole. At this time, the solenoid valve is opened to allow the gas inside the airbag to quickly flow into the air duct. As the welding temperature continues to rise, the heat conductive sheet and the heat conductive rod will quickly sense the temperature and conduct heat to the inside of the adaptive deflation part, thereby causing the shape memory alloy rod to deform. When the temperature exceeds the deformation temperature value of the shape memory alloy rod, the shape memory alloy rod changes from a bent state to a straight state, thereby squeezing and pushing the air blocking parts on both sides to expand toward both ends, thereby realizing the function of adjusting the size of the airflow spray, increasing the jet volume, and quickly blowing and cooling the high-temperature welding vertical seam. After the airbag is deflated, its volume becomes smaller and is re-stored into the storage tank on the inner wall of the welding ring. At this time, the welding ring rises and leaves the tower.

[0008] Furthermore, the airbag is made of high-temperature resistant elastic material, and the interior of the airbag is also filled with an elastic shaping net. The high-temperature resistant material of the airbag can effectively prevent burns and ruptures caused by excessive welding temperature, and the filled elastic shaping net can shape the filling of the airbag to ensure the expansion and fullness of the airbag.

[0009] Furthermore, the air outlet of the air duct is directly opposite to the side of the welding head, and the inner diameter of the air duct is larger than the diameter of the welding head. The air outlet is arranged at the side of the welding head, which can ensure that the gas ejected from the inside of the airbag can be directly opposite to the vertical seam of the welding, thereby blowing and dissipating the high-temperature vertical seam welding, greatly improving the welding quality.

[0010] Furthermore, the adaptive air release component includes a disc, a square channel connected to the air duct is opened in the middle of the disc, the upper and lower inner walls of the disc are fixedly inlaid with heat-conducting rods fixedly connected to the heat-conducting block, the inner wall of the square channel is fixedly connected with a heat-conducting sheet fixedly connected to the heat-conducting rod, and the inner walls on both sides of the square channel are also fixedly connected with air blocking components, and a shape memory alloy rod is fixedly connected between the heat-conducting sheet and the air blocking component. The welding temperature can be sensed and conducted through the heat-conducting block and the heat-conducting rod. When the temperature exceeds the deformation temperature value of the shape memory alloy rod, the shape memory alloy rod changes from a bent state to a straight state, thereby squeezing and pushing the air blocking components on both sides to expand toward both ends, thereby realizing the function of adjusting the size of the airflow spray, increasing the air jet volume, and quickly blowing and cooling the high-temperature welding vertical seams.

[0011] Furthermore, the gas barrier component includes two symmetrically distributed hard substrates, a side sealing gasket is fixedly connected between the two hard substrates, and a plurality of equally spaced adaptive adjusting components are also fixedly connected between the two hard substrates. The side sealing gasket can ensure the sealing effect of the gas barrier component, and the plurality of equally spaced adaptive adjusting components can connect the two hard substrates to assist the extension and contraction of the shape memory alloy rod, thereby realizing the adjustment of the ventilation flow rate, and then adjusting the jet flow rate according to the welding temperature.

[0012] Furthermore, the adaptive adjustment member is a hollow elliptical structure, and the adaptive adjustment member is made of elastic material, and the side sealing gasket is made of flexible material. The elliptical structure can keep the two hard substrates in a gap state without excessive fitting, and the elastic properties of the shape memory alloy rod are used to assist the temperature-sensing movement state. The flexible sealing gasket can effectively protect the hard substrate without cracking or damage at the end.

[0013] Compared with the prior art, the advantages of the present invention are: The tower is placed on the shaping plate by means of a lifting mechanism, so that the tower is limited and fixed. At the same time, the vertical seam of the tower is aligned with the position of the welding head. At this time, the hydraulic rod pushes the welding ring down, and the welding ring is mounted on the surface of the tower. The air pump supplies air to the air bag contained in the side wall of the welding ring through the air pipe. The air bag gradually deforms to an expanded state, thereby abutting against the surface of the tower, limiting the vertical direction of the welding head to prevent the welding head from angularly shifting during the descent, thereby ensuring the welding quality. The hydraulic rod continues to descend, causing the welding head to move in a straight line, and the entire vertical seam is welded without moving the bulky tower, and the welding stability is higher. (2) After welding is completed, the hydraulic rod rises, thereby driving the entire welding ring to move as a whole. At this time, the solenoid valve is opened, allowing the gas inside the airbag to quickly flow into the air duct. As the welding temperature continues to rise, the heat conductive sheet and the heat conductive rod will quickly sense the temperature and transfer heat to the inside of the adaptive air release component, thereby causing the shape memory alloy rod to deform. When the temperature exceeds the deformation temperature value of the shape memory alloy rod, the shape memory alloy rod changes from a bent state to a straight state, thereby squeezing and pushing the air blocking components on both sides to expand toward both ends, realizing the function of adjusting the size of the airflow jet, increasing the jet volume, and quickly blowing and cooling the high-temperature welding vertical seam. After the airbag is deflated, its volume becomes smaller and is re-stored into the storage tank on the inner wall of the welding ring. At this time, the welding ring rises and leaves the tower.

[0014] (3) The airbag is made of high-temperature resistant material, which can effectively prevent burns and ruptures caused by excessive welding temperature. The elastic shaping net filled in can shape the filling of the airbag to ensure the expansion and fullness of the airbag.

[0015] (4) The air outlet of the air duct is arranged on the side of the welding head, which can ensure that the gas ejected from the airbag is directly facing the vertical weld of the welding, thereby blowing and dissipating the heat at the high-temperature vertical weld, greatly improving the welding quality.

[0016] (5) The welding temperature can be sensed and conducted through the heat conduction block and the heat conduction rod. When the temperature exceeds the deformation temperature of the shape memory alloy rod, the shape memory alloy rod changes from a bent state to a straight state, thereby squeezing and pushing the air blocking parts on both sides to expand toward both ends, thereby achieving the function of adjusting the size of the air flow, increasing the air flow volume, and quickly blowing and cooling the high-temperature welding vertical seam.

[0017] (6) A side sealing gasket is fixedly connected between the two rigid substrates, and the sealing effect of the gas barrier can be ensured by the side sealing gasket. In addition, a plurality of adaptive adjustment parts arranged at equal intervals can connect the two rigid substrates to assist the extension and contraction of the shape memory alloy rod, thereby realizing the adjustment of the ventilation flow rate, and then adjusting the amount of the jet flow rate according to the welding temperature.

[0018] (7) The adaptive adjustment member is a hollow elliptical structure, and the adaptive adjustment member is made of elastic material. The side sealing gasket is made of flexible material. The elliptical structure can keep the two hard substrates in a gap state without excessive fitting. The elastic properties of the shape memory alloy rod are used to assist the temperature sensing movement state. The flexible side sealing gasket can effectively protect the hard substrate without cracking or damage at the end. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the tower installation structure of the present invention; Figure 3 It is a schematic diagram of the bracket structure of the present invention; Figure 4 It is a schematic diagram of the welding ring structure of the present invention; Figure 5 It is a schematic diagram of the airbag expansion state of the present invention; Figure 6 It is a schematic diagram of the internal structure of the airway of the present invention; Figure 7 It is a schematic diagram of the contraction state of the shape memory alloy rod in the present invention; Figure 8 It is a schematic diagram of the shape memory alloy rod in the present invention in the extended state; Fig. 9 Schematic diagram of the internal structure of the gas barrier in the present invention.

[0020] Description of the numbers in the figure: 1. Frame; 2. Hydraulic rod; 3. Welding ring; 301. Holding ring; 3011. Air duct; 302. Storage tank; 303. Air bag; 304. Groove; 305. Welding head; 4. Bracket; 5. Shaping disk; 6. Solenoid valve; 7. Adaptive degassing part; 701. Disc; 702. Square channel; 703. Heat-conducting rod; 704. Heat-conducting sheet; 705. Air-blocking part; 7051. Hard substrate; 7052. Side sealing gasket; 7053. Adaptive adjusting part; 706. Shape memory alloy rod; 8. Heat-conducting block. DETAILED DESCRIPTION

[0021] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] Example 1: Please refer to Figure 1-9 A wind power generation support tower steel welding device comprises a frame 1, a plurality of downwardly arranged hydraulic rods 2 are fixedly installed on the upper end of the frame 1, and a welding ring 3 is fixedly connected to the output ends of the plurality of hydraulic rods 2 at the same time, a bracket 4 is arranged below the frame 1, a shaping disk 5 is fixedly connected to the upper end of the bracket 4, a tower is placed on the upper end of the shaping disk 5, the shaping disk 5 can be set to different heights as needed, and the welding ring 3 is sleeved on the outside of the tower, the welding ring 3 comprises an embracing ring 301, and a plurality of symmetrically distributed storage tanks 302 are opened on the inner side wall of the embracing ring 301, and an air bag 303 is sealed and connected to the inside of the storage tank 302, An air pump is installed on one side of the frame 1, and the air pump is connected to the airbag 303 through an air pipe. A groove 304 is also provided at a position between the multiple airbags 303 on the holding ring 301, and the groove 304 is directly opposite to the vertical seam position of the tower. A welding head 305 is installed on the side wall of the groove 304. An air duct 3011 is provided in the middle of the inner wall between the groove 304 and the airbag 303, and a solenoid valve 6 is installed inside the air duct 3011. An adaptive air release member 7 is fixedly connected to the air duct 3011 near the inner wall of the groove 304, and a heat conductive block 8 connected to the adaptive air release member 7 is fixedly inlaid on the side wall of the groove 304; The airbag 303 is made of high temperature resistant elastic material, and the inside of the airbag 303 is also filled with elastic shaping net. The high temperature resistant material of the airbag 303 can effectively prevent burns and ruptures caused by excessive welding temperature, and the elastic shaping net filled can shape the filling of the airbag 303 to ensure the expansion and fullness of the airbag; The air outlet of the air duct 3011 is directly opposite to the side of the welding head 305, and the inner diameter of the air duct 3011 is larger than the diameter of the welding head 305. The air outlet is arranged at the side of the welding head 305, which can ensure that the gas ejected from the airbag 303 can directly face the vertical welding seam, thereby blowing and dissipating the high-temperature vertical seam welding, greatly improving the welding quality; The adaptive air release member 7 comprises a disc 701, a square channel 702 connected to the air duct 3011 is provided in the middle of the disc 701, heat-conducting rods 703 fixedly connected to the heat-conducting block 8 are fixedly inlaid on the inner walls on the upper and lower sides of the disc 701, a heat-conducting sheet 704 fixedly connected to the heat-conducting rod 703 is fixedly connected to the inner wall of the square channel 702, and air-blocking members 705 are also fixedly connected to the inner walls on both sides of the square channel 702, and a shape memory alloy rod 706 is fixedly connected between the heat-conducting sheet 704 and the air-blocking member 705, and the welding temperature can be sensed and conducted through the heat-conducting block 8 and the heat-conducting rod 703. When the temperature exceeds the deformation temperature value of the shape memory alloy rod 706, the shape memory alloy rod 706 changes from a bent state to a straight state, thereby squeezing and pushing the air-blocking members 705 on both sides to expand toward both ends, thereby realizing the function of adjusting the size of the airflow jet, increasing the jet volume, and quickly blowing and cooling the high-temperature welding vertical seam; The air blocking member 705 includes two symmetrically distributed hard substrates 7051, a side sealing gasket 7052 is fixedly connected between the two hard substrates 7051, and a plurality of equally spaced adaptive adjusting members 7053 are also fixedly connected between the two hard substrates 7051. The side sealing gasket 7052 can ensure the sealing effect of the air blocking member 705, and the plurality of equally spaced adaptive adjusting members 7053 can connect the two hard substrates 7051 to assist the extension and contraction of the shape memory alloy rod 706, thereby realizing the size adjustment of the ventilation flow, and then adjusting the amount of the jet flow according to the welding temperature; The adaptive adjustment member 7053 is a hollow elliptical structure, and the adaptive adjustment member 7053 is made of elastic material, and the side sealing gasket 7052 is made of flexible material. The elliptical structure can keep the two hard substrates 7051 in a gap state without excessive fitting, and use its own elastic properties to assist the temperature-sensing movement state of the shape memory alloy rod 706. The flexible side sealing gasket 7052 can effectively protect the hard substrate 7051 and prevent the end from cracking and damage.

[0024] In the present invention, the tower is placed on the shaping plate 5 by means of a hoisting mechanism, so as to limit and fix the tower. At the same time, the vertical seam of the tower is aligned with the position of the welding head 305. At this time, the hydraulic rod 2 pushes the welding ring 3 to descend, and the welding ring 3 is sleeved on the surface of the tower. The air pump supplies air to the air bag 303 received in the side wall of the welding ring 3 through the air pipe. The air bag 303 gradually deforms to an expanded state, thereby abutting against the surface of the tower, and limiting the vertical direction of the welding head 303 to prevent the welding head 303 from angular deviation during the descent process, thereby ensuring the welding quality. The hydraulic rod 2 continues to descend, so that the welding head 305 moves in a straight line, and the entire vertical seam is fully welded without moving the heavy tower, and the welding stability is higher. After welding is completed, the hydraulic rod 2 rises to drive the entire welding ring 3 to move as a whole. At this time, the solenoid valve 6 is opened to allow the gas inside the airbag 303 to quickly flow into the air duct 3011. As the welding temperature continues to rise, the heat conducting plate 704 and the heat conducting rod 703 will quickly sense the temperature and conduct heat to the inside of the adaptive air release component 7, thereby causing the shape memory alloy rod 706 to deform. When the temperature exceeds the deformation temperature value of the shape memory alloy rod 706, the shape memory alloy rod 706 changes from a bent state to a straight state, thereby squeezing and pushing the air blocking components 705 on both sides to expand toward both ends, thereby realizing the function of adjusting the size of the airflow spray, increasing the air jet volume, and quickly blowing and cooling the high-temperature welding vertical seam. After the airbag 303 is deflated, its volume becomes smaller and is re-stored in the storage tank 302 on the inner wall of the welding ring 3. At this time, the welding ring 3 rises and leaves the tower.

[0025] The above is only a preferred specific implementation manner of the present invention; but the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved concept of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A wind power generation support tower steel welding device, comprising a frame (1), wherein a plurality of downwardly disposed hydraulic rods (2) are fixedly mounted on the upper end of the frame (1), characterized in that: The output ends of the plurality of hydraulic rods (2) are simultaneously fixedly connected to a welding ring (3); a bracket (4) is arranged below the frame (1); a shaping disk (5) is fixedly connected to the upper end of the bracket (4); a tower is placed on the upper end of the shaping disk (5); and the welding ring (3) is sleeved on the outside of the tower; the welding ring (3) comprises an embracing ring (301); a plurality of symmetrically distributed storage tanks (302) are provided on the inner side wall of the embracing ring (301); an air bag (303) is sealed inside the storage tank (302); an air pump is installed on one side of the frame (1); the air pump is connected to the air bag (303) through an air pipe. The holding ring (301) is also provided with a groove (304) at a position between the plurality of air bags (303), and the groove (304) is directly opposite to the vertical seam position of the tower, a welding head (305) is installed on the side wall of the groove (304), an air duct (3011) is provided in the middle of the inner wall between the groove (304) and the air bag (303), a solenoid valve (6) is installed inside the air duct (3011), an adaptive air release component (7) is fixedly connected to the inner wall of the groove (304) near the air duct (3011), and a heat conductive block (8) connected to the adaptive air release component (7) is fixedly inlaid on the side wall of the groove (304).

2. A wind power generation support tower steel welding device according to claim 1, characterized in that: The airbag (303) is made of a high temperature resistant elastic material, and the interior of the airbag (303) is also filled with an elastic shaping net.

3. A wind power generation support tower steel welding device according to claim 1, characterized in that: The air outlet of the air duct (3011) is directly opposite to the side of the welding head (305), and the inner diameter of the air duct (3011) is greater than the diameter of the welding head (305).

4. A wind power generation support tower steel welding device according to claim 1, characterized in that: The adaptive air release member (7) comprises a disc (701), a square channel (702) communicating with the air passage (3011) is provided in the middle of the disc (701), heat-conducting rods (703) fixedly connected to the heat-conducting block (8) are fixedly inlaid on the upper and lower inner walls of the disc (701), a heat-conducting sheet (704) fixedly connected to the heat-conducting rod (703) is fixedly connected to the inner wall of the square channel (702), air-blocking members (705) are also fixedly connected to the inner walls on both sides of the square channel (702), and a shape memory alloy rod (706) is fixedly connected between the heat-conducting sheet (704) and the air-blocking member (705).

5. A wind power generation support tower steel welding device according to claim 4, characterized in that: The gas blocking member (705) comprises two symmetrically distributed hard substrates (7051), a side sealing gasket (7052) is fixedly connected between the two hard substrates (7051), and a plurality of equally spaced adaptive adjustment members (7053) are also fixedly connected between the two hard substrates (7051).

6. A wind power generation support tower steel welding device according to claim 5, characterized in that: The adaptive adjustment member (7053) is a hollow elliptical structure, and the adaptive adjustment member (7053) is made of an elastic material, and the side sealing pad (7052) is made of a flexible material.

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