A tracked traction device for pultruded sheet metal used in the main beam of wind turbine blades

Abstract

This invention belongs to the field of wind turbine blade processing technology, and specifically discloses a tracked traction device for pultruded sheet metal used in the main beam of wind turbine blades. The device includes a conveying protective cover and four side transmission covers, arranged in pairs. A drive assembly is installed between the interiors of the two side transmission covers in each pair, and multiple track plates are installed between the interiors of the two side transmission covers in each pair. When tractioning the heat-cured main beam plate, the two sets of side transmission covers are installed inside the conveying protective cover. A chain is then installed inside the conveying groove on each pair of transmission covers. The two ends of the track plates, which are movably connected end-to-end, are rotatably connected to one side of the chain. This allows the track plates to be driven during chain transmission. The track plates on the two sets of side transmission covers press against each other, thus traction is achieved during transport. Furthermore, the chain plates are fully pressed together, avoiding a series of problems that occur when only the front end is pressed.

Description

Technical Field

[0001] This invention relates to the field of wind turbine blade processing technology, and in particular to a tracked traction device for pultruded sheet metal used in the main beam of wind turbine blades. Background Technology

[0002] Wind turbine blades are the core components of wind turbines that convert natural wind energy into electrical energy. They are also the main basis for evaluating the design and technical level of wind turbines. When producing wind turbine blades, the main beam is the main load-bearing component. In order to incorporate fiber materials into the main beam, it is generally made using a pultrusion process. During production, traction facilities are required to ensure that the pultruded main beam can be transported smoothly.

[0003] Currently, when traction and conveying the main beam after extrusion molding, only one end of the sheet is pressed and then traction and conveying is carried out. Since there is no pressing force in the middle section of the sheet, when shaking occurs during the conveying process, the middle section will fluctuate greatly, which is not conducive to stable transportation. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the present invention provides a tracked traction device for pultruded sheet metal used in the main beam of wind turbine blades.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tracked traction device for pultruded sheet metal for wind turbine blade main beam, comprising a conveying protective cover and four side transmission covers, the four side transmission covers being grouped in pairs, a drive assembly being provided between the interiors of the two side transmission covers in each group, multiple track plates being provided between the interiors of the two side transmission covers in each group, the multiple track plates being movably connected end to end in pairs, a traction mechanism being provided inside the multiple track plates, and a guide assembly being provided on one outer surface of each of the four side transmission covers;

[0006] One set of two side drive covers is installed on the inner walls of both sides of the conveyor protective cover near the top edge, and the other set of two side drive covers is installed on the inner walls of both sides of the conveyor protective cover near the bottom edge. A main beam plate is set between the opposite sides of the two sets of side drive covers in the middle part of the conveyor protective cover.

[0007] Preferably, the guide assembly includes a guide strip, a fixing strip is installed on one side of the side drive cover near the inner surface edge, the guide strip is located on one side of the fixing strip, and there is a gap between the guide strip and the opposite side of the fixing strip, a front support block is fixed on one side of the fixing strip near the front edge, and the bottom of the front support block is fixed to the top of the guide strip.

[0008] Preferably, a rear support block is fixed on one side of the fixing strip near the rear edge, the bottom of the rear support block is fixed to the top of the guide strip, the middle part of the guide strip is bent to provide a bending guide surface, the guide strip extends from the rear side of the bending guide surface to the side transmission cover, and the rear support block is located on the rear side of the bending guide surface.

[0009] Preferably, the drive assembly includes multiple sprockets, and each of the four side drive covers has a transmission groove on one opposite side. Each of the multiple transmission grooves is equipped with a chain belt. Each of the multiple side drive covers has an anti-interference port at both ends of the transmission groove on one side. Each of the multiple anti-interference ports penetrates the interior of the middle side drive cover.

[0010] Preferably, multiple sprockets are rotatably arranged inside the conveyor groove at both ends. The two sprockets inside each conveyor groove form a group, and the two sprockets in each group are meshed with the chain belt. The multiple sprockets are located on one side of the anti-interference port, and a drive shaft is fixed between the two sprockets at both ends of the two side transmission covers of each group on opposite sides.

[0011] Preferably, both ends of the track plate are rotatably connected to the chain belt and arranged along the transmission direction of the chain belt. The top of the track plate has adjustment grooves near the two side edges. The bottom of the guide bar extends downward into the adjustment groove. The front end of the guide bar is near the rear edge of the front sprocket of the side drive cover, and the rear end of the guide bar is near the front edge of the rear sprocket of the side drive cover.

[0012] Preferably, the traction mechanism includes reciprocating rods, and two reciprocating cavities are opened on both sides of the track plate near the edge. The reciprocating rods are slidably connected between the inner walls of the reciprocating cavities. One end of each of the multiple reciprocating cavities extends to the outer side of the track plate. A flat opening is opened at the bottom of the track plate near both sides of the edge, and the two flat openings extend to both ends of the track plate.

[0013] Preferably, a return spring is fixed to one end of the reciprocating rod, and one end of the return spring is fixed to the inner wall of one side of the reciprocating cavity. A push opening is provided on the outer surface of the reciprocating rod near the front edge. The push opening is flat. A constraint strip is fixed to the bottom surface of the push opening. The constraint strip is inclined. A cylindrical hole is provided on the top surface of the reciprocating cavity. The cylindrical hole is located directly above the push opening.

[0014] Preferably, a lifting rod is slidably disposed inside the cylindrical hole, and the bottom end of the lifting rod slides through to the bottom of the flat opening. A pressure plate is disposed inside the flat opening, and the bottom end of the lifting rod is fixed to the top of the pressure plate. Multiple anti-slip textures are equidistantly disposed on the bottom of the pressure plate. A constraint opening is provided on the outer surface of the lifting rod near the rear edge. The constraint opening is inclined, and the constraint strip is slidably engaged inside the constraint opening.

[0015] Preferably, a through-hole is provided on the inner top surface of the reciprocating cavity near one end edge, the through-hole extending into the interior of the adjusting groove. A connecting rod is slidably arranged between the inner walls on both sides of the through-hole. The bottom of the connecting rod extends into the interior of the reciprocating cavity and is fixed to the top of the reciprocating rod near one end edge. The top of the connecting rod extends into the interior of the adjusting groove. A lever is fixed to the top of the connecting rod. The top of the lever has a bevel. The inner walls on both sides of the bevel are concave. Guide wheels are rotatably arranged on both sides of the bevel. The outer surfaces of the two guide wheels extend into the bevel. The guide bar slides inside the bevel, and the outer surfaces of the two guide wheels roll and fit against the outer surfaces on both sides of the guide bar.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. In this invention, when tractioning the main beam plate after heat curing, two sets of side transmission covers need to be installed inside the conveying protective cover. Then, a chain belt is set inside the conveying groove on each of the two sets of transmission covers. The two ends of the track plates that are movably connected end to end are rotatably connected to one side of the chain belt, so that the track plates can be driven during chain belt transmission. The track plates on the two sets of side transmission covers press the main beam plate together, thereby traction of the track plates during the conveying process. The chain plates can be completely pressed together from top to bottom, avoiding a series of problems that occur when only the front end is pressed together. During operation, the track plates are driven by the drive component. During the transmission process, the traction mechanism is triggered by the guide component. The traction mechanism can press and pull the main beam plate to prevent slippage during traction.

[0018] 2. When the drive component of the present invention is working, the drive shaft rotates and drives the sprocket drive. Since the sprocket and the chain belt mesh with each other, the chain belt drive can be driven. When the chain belt drive is driven, multiple track plates can be driven. The track plates are movably connected end to end and arranged along the direction of the chain belt, so that when the main beam plate is pulled, when the main beam plate passes through the transmission area of ​​the track plate, the track plate can be completely pressed against the outer surface of the main beam plate, which improves the stability of the main beam plate traction.

[0019] 3. When the guide component is working in this invention, during the transmission of the track plate, when the track plate is driven to the rear of the sprocket at the front end of the side transmission cover, the front end of the guide bar will slide into the adjustment groove and enter the inside of the bevel at the top of the lever. Inside the bevel, the guide wheels on both sides of the bevel roll on the outer surface of the guide bar. With the transmission of the chain belt, the track plate will slide to the rear of the side transmission cover. When the guide wheel slides past the bent guide surface, there is a smooth section behind the bent guide surface on the guide bar, so the traction mechanism can be kept in working state until it slides out from the rear end of the guide bar, which can reset the traction mechanism.

[0020] 4. In the present invention, when the traction mechanism is working, when the guide wheel slides in front of the bent guide surface on the guide bar, it will not slide the lever to one end. When the guide wheel slides to the bent guide surface on the guide bar, since the bent guide surface is inclined and tilted towards the side transmission cover, it will drive the lever to slide towards one end of the track plate through the guide wheel. At this time, since the lever slides towards one end of the track plate, it will drive the reciprocating rod to slide towards one end of the track plate through the connecting rod. When the reciprocating rod slides, under the interaction of the inclined constraint bar and the constraint opening on the lifting rod, it will drive the lifting rod to slide down the track plate, and then drive the pressure plate to slide down, so that the pressure plate can press the main beam plate. When the guide wheel slides past the bent guide surface, there is a smooth section after the bent guide surface on the guide bar, so the pressure plate can always maintain the downward pressure on the main beam plate. Attached Figure Description

[0021] Figure 1 This invention provides a front-view three-dimensional structural schematic diagram of a tracked traction device for a pultruded sheet material used in the main beam of a wind turbine blade.

[0022] Figure 2 This invention provides a three-dimensional structural diagram of the internal structure of a tracked traction device for a pultruded sheet material used in the main beam of a wind turbine blade.

[0023] Figure 3 This invention provides a front-view three-dimensional structural diagram of the drive component in a tracked traction device for a wind turbine blade main beam made of pultruded sheet metal.

[0024] Figure 4 This invention provides a top-view three-dimensional structural diagram of the track plate in a tracked traction device for a wind turbine blade main beam made of pultruded sheet metal.

[0025] Figure 5 This invention provides a bottom-view three-dimensional structural diagram of the track plate in a tracked traction device for a pultruded sheet material used in the main beam of a wind turbine blade.

[0026] Figure 6 This invention provides a cross-sectional three-dimensional structural diagram of the track plate in a tracked traction device for a wind turbine blade main beam made of pultruded sheet metal.

[0027] Figure 7 For the present invention Figure 2 A magnified view of a portion of point A in the middle;

[0028] Figure 8 For the present invention Figure 6 A magnified view of a portion of point B in the middle.

[0029] In the diagram: 1. Conveyor protective cover; 2. Side transmission cover; 3. Main beam plate; 4. Chain belt; 5. Sprocket; 6. Drive shaft; 7. Track plate; 8. Guide strip; 9. Front support block; 10. Bending guide surface; 11. Adjustment groove; 12. Pulley block; 13. Flat opening; 14. Pressure plate; 15. Twisted opening; 16. Guide wheel; 17. Reciprocating cavity; 18. Return spring; 19. Reciprocating rod; 20. Push opening; 21. Constraint strip; 22. Lifting rod; 23. Cylindrical hole; 24. Constraint opening; 25. Through opening; 26. Connecting rod; 27. Rear support block; 28. Conveying groove; 29. ​​Anti-interference opening; 30. Anti-slip texture; 31. Fixing strip. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-8 The present invention provides a technical solution: a tracked traction device for pultruded sheet metal for wind turbine blade main beam, comprising a conveying protective cover 1 and four side transmission covers 2, the four side transmission covers 2 are in pairs, a drive component is provided between the interiors of the two side transmission covers 2 in each pair, multiple track plates 7 are provided between the interiors of the two side transmission covers 2 in each pair, the multiple track plates 7 are movably connected end to end, a traction mechanism is provided inside the multiple track plates 7, and a guide component is provided on one outer surface of each of the four side transmission covers 2.

[0032] One set of two side drive covers 2 are installed on the inner walls of both sides of the conveying protective cover 1 near the top edge, and the other set of two side drive covers 2 are installed on the inner walls of both sides of the conveying protective cover 1 near the bottom edge. A main beam plate 3 is provided between the opposite sides of the two sets of side drive covers 2 in the middle part of the conveying protective cover 1.

[0033] The effect achieved is that when traction is applied to the main beam plate 3 after heat curing, two sets of side transmission covers 2 need to be installed inside the conveying protective cover 1. Then, a chain belt 4 is set inside the conveying groove 28 on each set of two transmission covers 2. The two ends of the track plates 7, which are movably connected end to end, are rotatably connected to one side of the chain belt 4. Thus, when the chain belt 4 is driven, it can drive the track plates 7. The track plates 7 on the two sets of side transmission covers 2 press against each other on the main beam plate 3, thereby traction can be applied to the track plates 7 during the conveying process. The chain plates 7 can be fully pressed together from top to bottom, avoiding a series of problems that occur when only the front end is pressed. During operation, the drive component drives the track plates 7 to drive. During the transmission process, the guide component triggers the traction mechanism to work. The traction mechanism can press and pull the main beam plate 3 to prevent slippage during traction.

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, the guide assembly includes a guide strip 8. A fixing strip 31 is installed on one side of the side transmission cover 2 near the inner surface edge. The guide strip 8 is located on one side of the fixing strip 31, and there is a gap between the guide strip 8 and the fixing strip 31 on opposite sides. A front support block 9 is fixed on one side of the fixing strip 31 near the front edge. The bottom of the front support block 9 is fixed to the top of the guide strip 8. A rear support block 27 is fixed on one side of the fixing strip 31 near the rear edge. The bottom of the rear support block 27 is fixed to the top of the guide strip 8. A bending guide surface 10 is provided in the middle part of the guide strip 8. The guide strip 8 extends towards the side transmission cover 2 from the rear side of the bending guide surface 10, and the rear support block 27 is located on the rear side of the bending guide surface 10.

[0035] The effect achieved is that during the transmission of the track plate 7, when the track plate 7 is driven to the rear of the sprocket 5 at the front end of the side transmission cover 2, the front end of the guide bar 8 will slide into the adjustment groove 11 and enter the recess 15 at the top of the lever block 12. Inside the recess 15, the guide wheels 16 located on both sides of the recess 15 roll on the outer surface of the guide bar 8. With the transmission of the chain belt 4, the track plate 7 will slide to the rear of the side transmission cover 2, thereby triggering the traction mechanism to work. When the guide wheel 16 slides past the bent guide surface 10, there is a smooth section behind the bent guide surface 10 on the guide bar 8, so the traction mechanism can be kept in working state until it slides out from the rear end of the guide bar 8, which will reset the traction mechanism.

[0036] like Figure 1 , Figure 2 and Figure 3As shown, the drive assembly includes multiple sprockets 5. Each of the four side transmission covers 2 has a transmission groove 28 on one opposite side. A chain belt 4 is installed inside each of the multiple transmission grooves 28. Each side transmission cover 2 has an anti-interference port 29 at both ends of the transmission groove 28. The anti-interference ports 29 penetrate the interior of the middle side transmission cover 2. Multiple sprockets 5 are rotatably mounted inside the transmission grooves 28 at both ends. Two sprockets 5 inside each transmission groove 28 form a group, and each group of two sprockets 5 meshes with the chain belt 4. Each sprocket 5 is located on one side of the anti-interference port 29. A drive shaft 6 is fixed between the two sprockets 5 at both ends of each set of two side transmission covers 2. Both ends of the track plate 7 are rotatably connected to the chain belt 4 and are arranged along the transmission direction of the chain belt 4. The top of the track plate 7 has an adjustment groove 11 near both sides. The bottom of the guide bar 8 extends downward into the adjustment groove 11. The front end of the guide bar 8 is near the rear edge of the front sprocket 5 of the side transmission cover 2, and the rear end of the guide bar 8 is near the front edge of the rear sprocket 5 of the side transmission cover 2.

[0037] The effect achieved is that the rotation of the drive shaft 6 can drive the sprocket 5. Since the sprocket 5 and the chain belt 4 mesh with each other, the chain belt 4 can drive the chain belt 4. When the chain belt 4 is driven, it can drive multiple track plates 7. The track plates 7 are movably connected end to end and arranged along the direction of the chain belt 4. When the main beam plate 3 is pulled, when the main beam plate 3 passes through the transmission area of ​​the track plates 7, the track plates 7 can be completely pressed onto the outer surface of the main beam plate 3, which improves the stability of the traction of the main beam plate 3.

[0038] like Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 8As shown, the traction mechanism includes a reciprocating rod 19. Two reciprocating cavities 17 are formed on both sides of the track plate 7 near its edge. The reciprocating rod 19 is slidably connected to the inner walls of the reciprocating cavities 17. One end of each reciprocating cavity 17 extends to the outer side of the track plate 7. A flat opening 13 is formed at the bottom of the track plate 7 near both sides' edges, and both openings 13 extend to both ends of the track plate 7. A return spring 18 is fixed to one end of the reciprocating rod 19, and one end of the return spring 18 is fixed to the reciprocating cavity 17. On one side of the inner wall, a push opening 20 is provided on the outer surface of the reciprocating rod 19 near the front edge. The push opening 20 is flat. A constraint strip 21 is fixed to the bottom surface of the push opening 20. The constraint strip 21 is inclined. A cylindrical hole 23 is provided on the top surface of the reciprocating cavity 17. The cylindrical hole 23 is located directly above the push opening 20. A lifting rod 22 is slidably arranged inside the cylindrical hole 23. The bottom end of the lifting rod 22 slides through to the bottom of the flat opening 13. A pressure plate 14 is provided inside the flat opening 13. The bottom end of the lifting rod 22 is fixed to the pressure plate. The top of the pressure plate 14 and the bottom of the pressure plate 14 are provided with multiple anti-slip textures 30 at equal intervals. The outer surface of the lifting rod 22 is provided with a constraint opening 24 near the rear edge. The constraint opening 24 is inclined. The constraint strip 21 is slidably engaged inside the constraint opening 24. The inner top surface of the reciprocating cavity 17 is provided with a through opening 25 near one end edge. The through opening 25 extends into the interior of the adjusting groove 11. A connecting rod 26 is slidably arranged between the inner walls on both sides of the through opening 25. The bottom of the connecting rod 26 extends into the interior of the reciprocating cavity 17 and is fixed. Near one end edge of the reciprocating rod 19, the top of the connecting rod 26 extends into the interior of the adjusting groove 11. A lever 12 is fixed to the top of the connecting rod 26. A bevel 15 is formed at the top of the lever 12. The inner walls on both sides of the bevel 15 are concave. Guide wheels 16 are rotatably mounted on the inner walls on both sides of the bevel 15. The outer surfaces of the two guide wheels 16 extend inward toward the bevel 15. The guide bar 8 slides inside the bevel 15, and the outer surfaces of the two guide wheels 16 roll and fit against the outer surfaces on both sides of the guide bar 8.

[0039] The effect achieved is that when the guide wheel 16 slides in front of the bent guide surface 10 on the guide bar 8, it will not slide the lever 12 to one end. When the guide wheel slides to the part of the bent guide surface 10 on the guide bar 8, because the bent guide surface 10 is inclined and tilted towards the side transmission cover 2, it will drive the lever 12 to slide towards one end of the track plate 7 through the guide wheel 16. At this time, because the lever 12 slides towards one end of the track plate 7, it will drive the connecting rod 26 to... The reciprocating rod 19 slides towards one end of the track plate 7. When the reciprocating rod 19 slides, the interaction between the inclined constraint bar 21 and the constraint opening 24 on the lifting rod 22 will drive the lifting rod 22 to slide below the track plate 7, thereby driving the pressure plate 14 to slide downward, so that the pressure plate 14 can press the main beam plate 3 tightly. When the guide wheel 16 slides past the bent guide surface 10, there is a smooth section after the bent guide surface 10 on the guide bar 8, so the downward pressure of the pressure plate 14 on the main beam plate 3 can be maintained.

[0040] Working Principle: When using this device, the rotation of the drive shaft 6 drives the sprocket 5. Since the sprocket 5 meshes with the chain belt 4, it drives the chain belt 4. The chain belt 4 drives multiple track plates 7. The track plates 7 are movably connected end-to-end and arranged along the direction of the chain belt 4. When the main beam plate 3 is being pulled, as the main beam plate 3 passes through the transmission area of ​​the track plates 7, the track plates 7 can be completely pressed against the outer surface of the main beam plate 3, improving the stability of the traction. During the transmission of the track plate 7, when the track plate 7 is driven to the rear of the sprocket 5 at the front end of the side transmission cover 2, the front end of the guide bar 8 will slide into the adjusting groove 11 and into the recess 15 at the top of the lever block 12. Inside the recess 15, the guide wheels 16 located on both sides of the recess 15 roll on the outer surface of the guide bar 8. With the transmission of the chain belt 4, the track plate 7 will slide backwards towards the side transmission cover 2. When the guide wheel 16 slides past the bent guide surface 10, the guide bar 8 will bend the guide surface 10. The section is smooth, so the traction mechanism can remain in working condition until it slides out from the rear end of the guide bar 8, at which point the traction mechanism will reset. When the guide wheel 16 slides in front of the bent guide surface 10 on the guide bar 8, it will not slide the lever 12 to one end. When the guide wheel slides to the part of the bent guide surface 10 on the guide bar 8, because the bent guide surface 10 is inclined and tilted towards the side transmission cover 2, it will drive the lever 12 to slide towards one end of the track plate 7 through the guide wheel 16. At this time, because the lever 12 is tilted towards the track plate 7, the lever 12 will slide towards the track plate 7. When one end of the track plate 7 slides, the reciprocating rod 19 will slide towards one end of the track plate 7 via the connecting rod 26. When the reciprocating rod 19 slides, the interaction between the inclined constraint bar 21 and the constraint opening 24 on the lifting rod 22 will cause the lifting rod 22 to slide below the track plate 7, which in turn will cause the pressure plate 14 to slide downward, so that the pressure plate 14 can press the main beam plate 3 tightly. When the guide wheel 16 slides past the bent guide surface 10, there is a smooth section after the bent guide surface 10 on the guide bar 8, so the downward pressure of the pressure plate 14 on the main beam plate 3 can be maintained.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tracked traction device for pultruded sheet metal used in the main beam of wind turbine blades, characterized in that, It includes a conveyor protective cover (1) and four side transmission covers (2). The four side transmission covers (2) are arranged in pairs. A drive assembly is provided between the interiors of the two side transmission covers (2) in each pair. Multiple track plates (7) are provided between the interiors of the two side transmission covers (2) in each pair. The multiple track plates (7) are movably connected end to end in pairs. A traction mechanism is provided inside the multiple track plates (7). A guide assembly is provided on one outer surface of each of the four side transmission covers (2). One set of two side transmission covers (2) are installed on the inner walls of the two sides of the conveying protective cover (1) near the top edge, and the other set of two side transmission covers (2) are installed on the inner walls of the two sides of the conveying protective cover (1) near the bottom edge. A main beam plate (3) is provided between the opposite sides of the two sets of side transmission covers (2) in the middle part of the conveying protective cover (1). The guide assembly includes a guide strip (8). A fixing strip (31) is installed on one side of the side transmission cover (2) near the inner surface edge. The guide strip (8) is located on one side of the fixing strip (31), and there is a gap between the guide strip (8) and the opposite side of the fixing strip (31). A front support block (9) is fixed on one side of the fixing strip (31) near the front edge. The bottom of the front support block (9) is fixed to the top of the guide strip (8). The traction mechanism includes a reciprocating rod (19). Two reciprocating cavities (17) are opened on both sides of the track plate (7) near the edge. The reciprocating rod (19) is slidably connected between the inner walls of the reciprocating cavities (17). One end of each of the reciprocating cavities (17) extends to the outer side of the track plate (7). A flat opening (13) is opened at the bottom of the track plate (7) near both sides. Two flat openings (13) extend to both ends of the track plate (7). A return spring (18) is fixed to one end of the reciprocating rod (19). One end of the return spring (18) is fixed to one side of the inner wall of the reciprocating cavity (17). Above, a push opening (20) is provided on the outer surface of the reciprocating rod (19) near the front edge. The push opening (20) is flat. A constraint strip (21) is fixed on the inner bottom surface of the push opening (20). The constraint strip (21) is inclined. A cylindrical hole (23) is provided on the inner top surface of the reciprocating cavity (17). The cylindrical hole (23) is located directly above the push opening (20). A lifting rod (22) is slidably arranged inside the cylindrical hole (23). The bottom end of the lifting rod (22) slides through to the bottom of the flat opening (13). A pressure plate (14) is provided inside the flat opening (13). The bottom end of the lifting rod (22) is fixed to the... The top of the pressure plate (14) and the bottom of the pressure plate (14) are provided with multiple anti-slip textures (30) at equal intervals. The outer surface of the lifting rod (22) near the rear edge is provided with a constraint opening (24). The constraint opening (24) is inclined. The constraint strip (21) is slidably engaged inside the constraint opening (24). The inner top surface of the reciprocating cavity (17) near one end edge is provided with a through opening (25). The through opening (25) extends into the interior of the adjusting groove (11). A connecting rod (26) is slidably arranged between the inner walls on both sides of the through opening (25). The bottom of the connecting rod (26) extends into the interior of the reciprocating cavity (17). Fixed at the top of the reciprocating rod (19) near one end edge, the top of the connecting rod (26) extends into the interior of the adjusting groove (11), the top of the connecting rod (26) is fixed with a lever (12), the top of the lever (12) is provided with a bevel (15), the inner walls on both sides of the bevel (15) are concave, and the inner walls on both sides of the bevel (15) are rotatably provided with guide wheels (16), the outer surfaces of the two guide wheels (16) extend into the bevel (15), the guide strip (8) slides inside the bevel (15), and the outer surfaces of the two guide wheels (16) are corresponding to the outer surfaces on both sides of the guide strip (8) rolling and adhering.

2. The tracked traction device for pultruded sheet metal used in the main beam of a wind turbine blade according to claim 1, characterized in that: A rear support block (27) is fixed on one side of the fixing strip (31) near the rear edge. The bottom of the rear support block (27) is fixed to the top of the guide strip (8). The middle part of the guide strip (8) is bent to provide a bending guide surface (10). The guide strip (8) extends from the rear side of the bending guide surface (10) towards the side transmission cover (2), and the rear support block (27) is located on the rear side of the bending guide surface (10).

3. The tracked traction device for pultruded sheet metal used in the main beam of a wind turbine blade according to claim 2, characterized in that: The drive assembly includes multiple sprockets (5), and each of the four side transmission covers (2) has a transmission groove (28) on one side. Each of the multiple transmission grooves (28) has a chain belt (4) inside. Each of the multiple side transmission covers (2) has an anti-interference port (29) at both ends of the transmission groove (28) on one side. Each of the multiple anti-interference ports (29) penetrates the interior of the middle side transmission cover (2).

4. A tracked traction device for pultruded sheet metal used in the main beam of a wind turbine blade according to claim 3, characterized in that: Multiple sprockets (5) are rotatably disposed inside the conveyor groove (28) at both ends. Two sprockets (5) inside each conveyor groove (28) form a group. Two sprockets (5) in each group are meshed with the chain belt (4). Multiple sprockets (5) are located on one side of the anti-interference port (29). A drive shaft (6) is fixed between the two sprockets (5) at both ends of each group of two side transmission covers (2) on opposite sides.

5. A tracked traction device for pultruded sheet metal used in the main beam of a wind turbine blade according to claim 4, characterized in that: Both ends of the track plate (7) are rotatably connected to the chain belt (4) and arranged along the transmission direction of the chain belt (4). The top of the track plate (7) is provided with adjustment grooves (11) near the two side edges. The bottom of the guide strip (8) extends downward into the adjustment groove (11). The front end of the guide strip (8) is near the rear edge of the front sprocket (5) of the side transmission cover (2), and the rear end of the guide strip (8) is near the front edge of the rear sprocket (5) of the side transmission cover (2).

Images