Lifting platform for welding wind power tower drum

Abstract

The utility model relates to the technical field of wind power tower tube welding, and discloses a lifting platform for wind power tower tube welding, which comprises a base, a lifting column is fixedly connected to the upper surface of the base, a supporting platform is fixedly connected to the top end of the lifting column, and a first vertical plate is fixedly connected to the left side of the upper surface of the supporting platform. The lower left side of the upper surface of the supporting platform is fixedly connected with a positioning plate, the lower right side of the upper surface of the supporting platform is fixedly connected with a motor, the top end of the motor is fixedly sleeved with a belt, the end, away from the motor, of the belt is fixedly sleeved with a driven wheel, and a speed reduction mechanism is arranged on the rear side of the driven wheel. According to the lifting platform for welding the wind power tower drum, by arranging the lifting mechanism, the balance mechanism and the speed reduction mechanism, when the highest point of a drum body with a large diameter is welded, an embedded welding tool and related operators can be conveyed to a place with a specified height through the supporting plate, and the whole conveying process can be kept stable without shaking; and the safety of welding construction is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power tower welding, in particular to a lifting platform for wind power tower welding. Background Art

[0002] In the wind turbine tower manufacturing industry, its products are made of rolled steel plates and then welded. Welding is the main process in the manufacture of wind turbine towers. Due to the large size, thick wall and simple structure of wind turbine towers, the welding of wind turbine towers adopts semi-automatic submerged arc welding. In particular, when welding the outer wall of the tower, the wind turbine tower section or its cylinder needs to be placed flat on the roller frame, and welding is performed at the highest point of the cylinder. At the same time, due to the large diameter of the wind turbine tower, generally between 3 meters and 6 meters, the outer wall of the tower needs to be welded with the help of a lifting platform to achieve construction conditions.

[0003] After consulting relevant patent documents, it is found that there are still some problems with the existing lifting platforms for wind turbine tower welding. The optimization solutions currently on the market are mainly: by setting telescopic plates and threaded rods, etc., the surface of the lifting platform can be extended to adapt to wind turbine towers of different sizes, and the wind turbine tower is fixed by parts such as threaded rods and vertical plates. However, this method does not optimize the transportation of workers and ambush welding equipment to the specified height. In response to the above problems, a lifting mechanism and a balancing mechanism are currently set up, so that when welding the highest point of a larger diameter cylinder, the ambush welding tools and related operators can be transported to the specified height through the pallet, and the entire transportation process will remain stable and not shaken, which effectively improves the safety of welding construction. For this reason, a lifting platform for wind turbine tower welding that can effectively ensure the stability of the platform is proposed. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a lifting platform for wind power tower welding.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting platform for wind power tower welding, comprising a base, an upper surface of the base is fixedly connected to a lifting column, the top of the lifting column is fixedly connected to a supporting platform, the left side of the upper surface of the supporting platform is fixedly connected to a first vertical plate, the front side of the first vertical plate is fixedly connected to a first rubber pad, the lower left side of the upper surface of the supporting platform is fixedly connected to a positioning plate, a threaded rod is rotatably connected inside the positioning plate, a second vertical plate is fixedly connected to the upper right side of the upper surface of the supporting platform, the front side of the second vertical plate is fixedly connected to a second rubber pad, a telescopic plate is slidably connected inside the right side of the supporting platform, a pad is fixedly connected to the right side of the upper surface of the telescopic plate, and a motor is fixedly connected to the lower right side of the upper surface of the supporting platform, a belt is fixedly sleeved on the top of the motor, a driven wheel is fixedly sleeved on the end of the belt away from the motor, and a speed reduction mechanism is provided on the rear side of the driven wheel.

[0006] As a further improvement of the above solution, the deceleration mechanism includes a driving gear, the driving gear is fixedly connected to the driven wheel, the circumferential surface of the driving gear is meshed with the driven gear, and the side of the driven gear away from the driven wheel is fixedly connected to the driving shaft.

[0007] As a further improvement of the above scheme, the drive shaft is rotatably connected to the inside of the positioning block at one end away from the driven gear. The positioning blocks are arranged in a pair. The portion of the drive shaft between the positioning blocks is fixedly connected to a first rotating arm. A lifting mechanism is arranged at one end of the first rotating arm away from the positioning block.

[0008] As a further improvement of the above scheme, the lifting mechanism includes a first gear, a second gear is meshed on the circumferential side of the first gear, the first gear and the second gear are fixedly connected to a rotating shaft on the side close to the first rotating arm, the rotating shaft is fixedly connected to a limiting ring at the top away from the second gear, and the limiting ring is rotatably connected to a connecting plate at one end close to the first rotating arm.

[0009] As a further improvement of the above scheme, the rotating shaft passes through the first rotating arm and the second rotating arm from the surface of the first gear and the second gear, and both are fixedly connected. The first rotating arm and the second rotating arm are vertically symmetrically distributed. The limiting ring is fixedly sleeved on the top of the rotating shaft and fits with the connecting plate but is not fixed. The connecting plate and the first rotating arm and the second rotating arm are both rotationally connected.

[0010] As a further improvement of the above scheme, a balancing mechanism is arranged at the top of the upper part of the second rotating arm, and the balancing mechanism includes a support plate, a first support arm is fixedly connected to the right side of the bottom surface of the support plate, a second support arm is fixedly connected to the left side of the bottom surface of the support plate, and a balancing gear is fixedly connected to the lower end of the second support arm, and the side edge of the balancing gear is meshed with arc-shaped teeth.

[0011] As a further improvement of the above solution, the arc-shaped tooth pattern is fixedly arranged at the top end of the second rotating arm, and the first support arm is rotationally connected to the second rotating arm.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This type of lifting platform for wind turbine tower welding is equipped with a lifting mechanism, so that the first rotating arm will drive the rotating shaft to rotate during the lifting and rotation process, and the rotating shaft will drive the second gear to rotate, so that the first gear meshing on the surface of the second gear rotates in the opposite direction, driving the second rotating arm to lift, and the connecting plate and the limit ring can prevent the first rotating arm and the second rotating arm from being separated from the relative position, so that the staff can reach the specified height of the wind turbine tower for welding, and the setting of the speed reduction mechanism makes the entire rotation and lifting process not too fast, avoiding equipment or personnel from falling from the support plate due to a large rotation speed, improving construction efficiency and reducing construction costs.

[0014] 2. This type of lifting platform for wind turbine tower welding is equipped with a balancing mechanism so that the second rotating arm will cause the balancing gear meshing on the arc-shaped tooth surface to rotate in the opposite direction during the rotation and lifting process. Since the balancing gear is fixedly connected to the second support arm, it will drive the support plate to rotate in the opposite direction along the connection between the first support arm and the second rotating arm, so that the support plate always remains in a horizontal position. When the staff places the ambush welding equipment on the support plate, or goes to the specified height with the equipment for manual assisted welding, the safety of the equipment and the staff on the support plate is guaranteed, and unnecessary losses will not be caused by falling due to shaking and other factors, and the platform has strong safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the left side front view of the utility model;

[0016] Figure 2 This is a right rear end view of the utility model;

[0017] Figure 3 This is an enlarged view of the speed reduction mechanism of the utility model;

[0018] Figure 4 This is an enlarged view of the balancing mechanism of the utility model;

[0019] Figure 5 This is an enlarged view of the lifting mechanism of the utility model.

[0020] Description of main symbols:

[0021] 1. Base; 2. Lifting column; 3. Support platform; 4. First vertical plate; 5. First rubber pad; 6. Positioning plate; 7. Threaded rod; 8. Second vertical plate; 9. Second rubber pad; 10. Telescopic plate; 11. Pad; 12. Motor; 13. Belt; 14. Driven wheel; 15. Speed ​​reduction mechanism; 1501. Driving gear; 1502. Driven gear; 1503. Driving shaft; 16. Positioning block; 17. First rotating arm; 18. Lifting mechanism; 1801. First gear; 1802. Second gear; 1803. Rotating shaft; 1804. Limiting ring; 1805. Connecting plate; 19. Second rotating arm; 20. Balancing mechanism; 2001. Support plate; 2002. First support arm; 2003. Second support arm; 2004. Balancing gear; 2005. Arc tooth pattern. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0023] Example:

[0024] Please combine Figure 1-5 A lifting platform for welding a wind power tower in this embodiment includes a base 1, a lifting column 2 is fixedly connected to the upper surface of the base 1, a supporting platform 3 is fixedly connected to the top of the lifting column 2, a first vertical plate 4 is fixedly connected to the left side of the upper surface of the supporting platform 3, a first rubber pad 5 is fixedly connected to the front side of the first vertical plate 4, a positioning plate 6 is fixedly connected to the lower left side of the upper surface of the supporting platform 3, a threaded rod 7 is rotatably connected inside the positioning plate 6, a second vertical plate 8 is fixedly connected to the upper right side of the upper surface of the supporting platform 3, a second rubber pad 9 is fixedly connected to the front side of the second vertical plate 8, a telescopic plate 10 is slidably connected inside the right side of the supporting platform 3, a cushion block 11 is fixedly connected to the right side of the upper surface of the telescopic plate 10, a motor 12 is fixedly connected to the lower right side of the upper surface of the supporting platform 3, a belt 13 is fixedly sleeved on the top of the motor 12, a driven wheel 14 is fixedly sleeved on the end of the belt 13 away from the motor 12, and a speed reduction mechanism 15 is arranged on the rear side of the driven wheel.

[0025] The deceleration mechanism 15 includes a driving gear 1501 , which is fixedly connected to the driven wheel 14 . A driven gear 1502 is meshed on the circumferential surface of the driving gear 1501 , and a driving shaft 1503 is fixedly connected to a side of the driven gear 1502 away from the driven wheel 14 .

[0026] The end of the driving shaft 1503 away from the driven gear 1502 is rotatably connected to the inside of the positioning block 16. The positioning blocks 16 are arranged in a pair. The portion of the driving shaft 1503 between the positioning blocks 16 is fixedly connected to the first rotating arm 17. The end of the first rotating arm 17 away from the positioning block 16 is provided with a lifting mechanism 18.

[0027] The lifting mechanism 18 includes a first gear 1801, and the second gear 1802 is meshed on the circumferential side of the first gear 1801. The first gear 1801 and the second gear 1802 are fixedly connected to a rotating shaft 1803 on the side close to the first rotating arm 17. The rotating shaft 1803 is fixedly connected to a limiting ring 1804 at the top away from the second gear 1802. The limiting ring 1804 is rotatably connected to a connecting plate 1805 at one end close to the first rotating arm 17.

[0028] The rotating shaft 1803 passes through the first rotating arm 17 and the second rotating arm 19 from the surface of the first gear 1801 and the second gear 1802, and both are fixedly connected. The first rotating arm 17 and the second rotating arm 19 are vertically symmetrically distributed. The limiting ring 1804 is fixedly sleeved on the top of the rotating shaft 1803, and fits with the connecting plate 1805 but is not fixed. The connecting plate 1805 and the first rotating arm 17 and the second rotating arm 19 are both rotationally connected.

[0029] A balancing mechanism 20 is provided at the top of the second rotating arm 19, and the balancing mechanism 20 includes a support plate 2001, a first arm 2002 is fixedly connected to the right side of the bottom surface of the support plate 2001, a second arm 2003 is fixedly connected to the left side of the bottom surface of the support plate 2001, and a balancing gear 2004 is fixedly connected to the lower end of the second arm 2003, and the side of the balancing gear 2004 is meshed with an arc-shaped tooth pattern 2005.

[0030] The arc-shaped tooth pattern 2005 is fixedly arranged at the top end of the second rotating arm 19, and the first support arm 2002 is rotatably connected to the second rotating arm 19.

[0031] The working principle of a lifting platform for wind power tower welding in the embodiment of the present application is as follows: when the fixing mechanism needs to be lifted, the motor 12 is started first, at which time the motor 12 drives the belt 13 to rotate, and the belt 13 drives the driven wheel 14 to rotate, so that the driving gear 1501 fixed on the back of the driven wheel 14 rotates, thereby driving the driven gear 1502 to rotate, so that the driving shaft 1503 drives the first rotating arm 17 to rotate and lift, and the first rotating arm 17 drives the rotating shaft 1803 to rotate during the lifting and rotation process, and at the same time, the rotating shaft 1803 drives the second gear 1802 to rotate, so that the first gear 1801 meshing on the surface of the second gear 1802 rotates in the opposite direction, driving the second rotating arm 19 to lift, and the connecting plate 1805 and the limiting ring 1804 can prevent the first rotating arm 17 and the second rotating arm 19 from being separated from their relative positions, so that the staff can In order to reach the specified height of the wind turbine tower for welding, the setting of the speed reduction mechanism 15 makes the entire rotation and lifting process not too fast, avoiding the equipment or personnel from falling from the pallet 2001 due to the high rotation speed, improving the construction efficiency and reducing the construction cost; the second rotating arm 19 will make the balance gear 2004 meshing on the surface of the arc-shaped tooth pattern 2005 rotate in the opposite direction during the rotation and lifting process. Since the balance gear 2004 is fixedly connected to the second support arm 2003, it will drive the pallet 2001 to rotate in the opposite direction along the connection between the first support arm 2001 and the second rotating arm 19, so that the pallet 2001 is always kept in a horizontal position. When the staff places the ambush welding equipment on the pallet 2001, or goes to the specified height with the equipment for manual auxiliary welding, the safety of the equipment and the staff on the pallet is guaranteed.

[0032] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A lifting platform for wind power tower welding, characterized in that: The invention comprises a base (1), wherein the upper surface of the base (1) is fixedly connected to a lifting column (2), the top of the lifting column (2) is fixedly connected to a supporting platform (3), the left side of the upper surface of the supporting platform (3) is fixedly connected to a first vertical plate (4), the front side of the first vertical plate (4) is fixedly connected to a first rubber pad (5), the lower left side of the upper surface of the supporting platform (3) is fixedly connected to a positioning plate (6), the inner part of the positioning plate (6) is rotatably connected to a threaded rod (7), and the upper right side of the upper surface of the supporting platform (3) is fixedly connected to a second vertical plate ( 8), a second rubber pad (9) is fixedly connected to the front side of the second vertical plate (8), a telescopic plate (10) is slidably connected to the inside of the right side of the support platform (3), a cushion block (11) is fixedly connected to the right side of the upper surface of the telescopic plate (10), a motor (12) is fixedly connected to the lower right side of the upper surface of the support platform (3), a belt (13) is fixedly sleeved on the top of the motor (12), a driven wheel (14) is fixedly sleeved on the end of the belt (13) away from the motor (12), and a speed reduction mechanism (15) is arranged on the rear side of the driven wheel.

2. A lifting platform for wind power tower welding according to claim 1, characterized in that: The deceleration mechanism (15) comprises a driving gear (1501), wherein the driving gear (1501) and the driven wheel (14) are fixedly connected, a driven gear (1502) is meshed on the circumferential surface of the driving gear (1501), and a driving shaft (1503) is fixedly connected to a surface of the driven gear (1502) away from the driven wheel (14).

3. A lifting platform for wind power tower welding according to claim 2, characterized in that: The end of the driving shaft (1503) away from the driven gear (1502) is rotatably connected to the inside of the positioning block (16); the positioning blocks (16) are arranged in a pair; the portion of the driving shaft (1503) between the positioning blocks (16) is fixedly connected to a first rotating arm (17); and the end of the first rotating arm (17) away from the positioning block (16) is provided with a lifting mechanism (18).

4. A lifting platform for wind power tower welding as claimed in claim 3, characterized in that: The lifting mechanism (18) comprises a first gear (1801), a second gear (1802) meshing on a circumferential side edge of the first gear (1801), a rotating shaft (1803) fixedly connected to one side of the first gear (1801) and the second gear (1802) close to the first rotating arm (17), a limiting ring (1804) fixedly connected to the top of the rotating shaft (1803) away from the second gear (1802), and a connecting plate (1805) rotatably connected to one end of the limiting ring (1804) close to the first rotating arm (17).

5. A lifting platform for wind power tower welding as claimed in claim 4, characterized in that: The rotating shaft (1803) passes through the first rotating arm (17) and the second rotating arm (19) from the surface of the first gear (1801) and the second gear (1802), and both are fixedly connected. The first rotating arm (17) and the second rotating arm (19) are vertically symmetrically distributed. The limiting ring (1804) is fixedly sleeved on the top of the rotating shaft (1803) and fits with the connecting plate (1805) but is not fixed. The connecting plate (1805) is rotatably connected to the first rotating arm (17) and the second rotating arm (19).

6. A lifting platform for wind power tower welding as claimed in claim 5, characterized in that: A balancing mechanism (20) is provided at the top end of the upper portion of the second rotating arm (19), and the balancing mechanism (20) comprises a support plate (2001), a first support arm (2002) is fixedly connected to the right side of the bottom surface of the support plate (2001), a second support arm (2003) is fixedly connected to the left side of the bottom surface of the support plate (2001), a balancing gear (2004) is fixedly connected to the lower end of the second support arm (2003), and the side edge of the balancing gear (2004) is meshed with an arc-shaped tooth pattern (2005).

7. A lifting platform for wind power tower welding according to claim 6, characterized in that: The arc-shaped tooth pattern (2005) is fixedly arranged at the top end of the second rotating arm (19), and the first support arm (2002) is rotatably connected to the second rotating arm (19).

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