A flange flipping device for welding

Abstract

The present invention relates to a flange flipping device for welding, which comprises a movable base. An arc-shaped support seat, a flipping platform and a platform driving mechanism for docking with a tower barrel are arranged on the movable base. The front end of the flipping platform is rotatably connected to the movable base. The platform driving mechanism comprises two hydraulic rods, which are respectively hinged to the left and right sides of the arc-shaped support seat, and the piston ends of the hydraulic rods are respectively hinged to the left and right sides of the flipping platform. The hydraulic rods are driven by a hydraulic pump. When the flange is flipped in the present invention, through the cooperation of the positioning mechanism, not only can the flange be positioned, but also the deformation caused by its own weight during flipping can be prevented, playing a role in supporting and protecting the flange.

Description

Technical Field

[0001] The present invention relates to the field of wind power tower barrels, and specifically refers to a flange flipping device for welding. Background Art

[0002] A wind power tower barrel is the tower pole of a wind power generator set, which mainly plays a supporting role in the wind power generating unit and absorbs the vibration of the unit at the same time.

[0003] The existing tower sections are connected by flanges. For large-sized tower barrels, the corresponding flange sizes are relatively large and the mass is also relatively large. Therefore, in order to prevent the flange from deforming due to its own weight, most large-sized flanges are stacked in a flat manner, and when welding is required, the flange is hoisted to the tower section for welding through corresponding hoisting. However, on the one hand, during hoisting, the stress point of the flange is concentrated on the connection point with the tooling, which is too single. Therefore, the top of the flange may collapse and deform. On the other hand, when using the hoisting method to dock with the tower barrel, it is easy to shake, the accuracy is relatively low, and it is difficult to complete the docking in a short time. Therefore, the efficiency is low.

[0004] Designing a flange flipping device for welding to solve the problems existing in the above-mentioned prior art is the purpose of the research of the present invention. Summary of the Invention

[0005] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a flange flipping device for welding, which can effectively solve the problems existing in the above-mentioned prior art.

[0006] The technical solution of the present invention is as follows:

[0007] A flange flipping device for welding, comprising a movable base, on which there are provided an arc-shaped support seat for docking with a tower barrel, a flipping platform and a platform driving mechanism. The front end of the flipping platform is rotatably connected to the movable base. The platform driving mechanism comprises two hydraulic rods, which are respectively hinged to the left and right sides of the arc-shaped support seat, and the piston ends of the hydraulic rods are both hinged to the left and right sides of the flipping platform. The hydraulic rods are both driven by a hydraulic pump. A positioning mechanism corresponding to the flange is provided on the flipping platform. The positioning mechanism comprises a plurality of positioning columns arranged at equal angles and an arc-shaped support plate movably arranged on the flipping platform. A rubber layer is provided on the side of the arc-shaped support plate that arches outward. An open-shaped chute is provided on the flipping platform at the position corresponding to the arc-shaped support plate. A support plate slider matched with the chute is provided at the bottom of the arc-shaped support plate. The bottom of the support plate slider passes through the chute and is connected with a linkage mechanism. The linkage mechanism comprises a first linkage arm and a second linkage arm whose ends are hinged to each other. The ends of the first linkage arm and the second linkage arm that are not hinged to each other are respectively hinged to the flipping platform and the bottom of the support plate slider. A slide rail is provided on the flipping platform at the rear side corresponding to the first linkage arm. A limit slider is movably arranged back and forth on the slide rail. A limit arm is hinged to the limit slider. The end of the limit arm that is not hinged to the limit slider is hinged to the first linkage arm.

[0008] Furthermore, rotating connection seats and support blocks are respectively provided at the front and rear ends of the movable base corresponding to the flipping platform.

[0009] Furthermore, the movable base is provided with driving wheels, which are driven by corresponding motors.

[0010] Advantages of the present invention:

[0011] When the present invention flips the flange, through the cooperation of the positioning mechanism, it can not only position the flange, but also prevent it from deforming due to its own weight during flipping, playing a supporting and protecting role for the flange. When docking with the tower section, the arc-shaped support seat can play a guiding and calibrating effect, making it easier for the flange to be docked with the tower barrel. The present invention not only has a simple structure, but also is convenient to use, has high efficiency, and can protect the flange. Description of the drawings

[0012] Figure 1 It is a schematic structural diagram of the present invention.

[0013] Figure 2 It is a schematic structural diagram of the movable base.

[0014] Figure 3 It is a schematic structural diagram of the flipping platform.

[0015] Figure 4 It is a schematic structural diagram of the arc-shaped support plate.

[0016] Figure 5 This is the usage state diagram of the present invention. Specific embodiments

[0017] For the convenience of those skilled in the art to understand, the embodiments will now be further described in detail in conjunction with the drawings for the structure of the present invention:

[0018] Reference Figures 1-5 , a flange flipping device for welding, comprising a movable base 1, on which there are provided an arc-shaped support seat 2 for docking a tower barrel, a flipping platform 3 and a platform driving mechanism 4. The front end of the flipping platform 3 is rotatably connected to the movable base 1. The platform driving mechanism 4 includes two hydraulic rods 5, which are respectively hinged to the left and right sides of the arc-shaped support seat 2, and the piston ends of the hydraulic rods 5 are respectively hinged to the left and right sides of the flipping platform 3. The hydraulic rods 5 are all driven by a hydraulic pump (not shown); a positioning mechanism 6 corresponding to the flange is provided on the flipping platform 3. The positioning mechanism 6 includes four positioning columns 7 arranged at equal angles and an arc-shaped support plate 8 movably arranged on the flipping platform 3. A rubber layer 21 is provided on the side of the arc-shaped support plate 8 that arches outward; an open-shaped chute 9 is provided on the flipping platform 3 at a position corresponding to the arc-shaped support plate 8. A support plate slider 10 is provided at the bottom of the arc-shaped support plate 8 and is matched with the chute 9. The bottom of the support plate slider 10 passes through the chute 9 and is connected to a linkage mechanism 11; the linkage mechanism 11 includes a first linkage arm 12 and a second linkage arm 13 that are hinged to each other at one end. The ends of the first linkage arm 12 and the second linkage arm 13 that are not hinged to each other are respectively hinged to the flipping platform 3 and the bottom of the support plate slider 10; a slide rail 14 is provided on the flipping platform 3 at a position corresponding to the rear side of the first linkage arm 12. A limit slider 15 is movably arranged back and forth on the slide rail 14. A limit arm 16 is hinged to the limit slider 15, and the end of the limit arm 16 that is not hinged to the limit slider 15 is hinged to the first linkage arm 12.

[0019] Furthermore, rotating connection seats 17 and support blocks 18 are respectively provided at the front and rear ends of the movable base 1 corresponding to the flipping platform 3.

[0020] Furthermore, the movable base 1 is provided with driving wheels 19, and the driving wheels 19 are driven by corresponding motors 20.

[0021] In use, the flange is placed on the flipping platform 3, and the positioning posts 7 on the flipping platform 3 are inserted into the corresponding flange holes, thereby positioning the flange; when the flange needs to be flipped, the hydraulic rods 5 on both sides of the arc-shaped support base 2 contract, driving the flipping platform 3 to rotate. At the same time, under the action of the linkage mechanism 11 below it, the arc-shaped support plate 8 will move backward along the chute 9. When the flipping platform 3 rotates to be perpendicular to the horizontal plane, the arc-shaped support plate 8 can just support the top of the flange, preventing the top of the flange from collapsing and deforming during welding; when docking with the tower section, the movable base 1 moves along the tower section direction driven by the motor 20. Under the guidance of the arc-shaped support base 2, the tower section can achieve position calibration faster, thus accelerating the docking with the flange and improving efficiency. After most of the welding is completed, the movable base 1 only needs to be driven by the motor 20 to retreat along the original path to complete the remaining part of the welding.

[0022] The above are only the preferred embodiments of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

Claims

1. A flange flipping device for welding, comprising a movable base, on which there are provided an arc-shaped support seat for docking with a tower barrel, a flipping platform, and a platform driving mechanism. The front end of the flipping platform is rotatably connected to the movable base. Characterized in that: The platform driving mechanism comprises two hydraulic rods, which are respectively hinged to the left and right sides of the arc-shaped support seat. The piston ends of the two hydraulic rods are both hinged to the left and right sides of the flipping platform. The two hydraulic rods are both driven by a hydraulic pump. A positioning mechanism corresponding to the flange is provided on the flipping platform. The positioning mechanism comprises 4 positioning columns arranged at equal angles and an arc-shaped support plate movably installed on the flipping platform. A rubber layer is provided on the side of the arc-shaped support plate that arches outwards. An open-shaped chute is provided on the flipping platform at the position corresponding to the arc-shaped support plate. A support plate slider matching the chute is provided at the bottom of the arc-shaped support plate. The bottom of the support plate slider passes through the chute and is connected to a linkage mechanism. The linkage mechanism comprises a first linkage arm and a second linkage arm whose ends are hinged to each other. The ends of the first linkage arm and the second linkage arm that are not hinged to each other are respectively hinged to the flipping platform and the bottom of the support plate slider. A slide rail is provided on the flipping platform at the position corresponding to the rear side of the first linkage arm. A limit slider is movably arranged back and forth on the slide rail. A limit arm is hinged to the limit slider. The end of the limit arm that is not hinged to the limit slider is hinged to the first linkage arm.

2. The flange flipping device for welding according to claim 1, Characterized in that: Rotating connection seats and support blocks are respectively provided at the front and rear ends of the movable base corresponding to the flipping platform.

3. The flange flipping device for welding according to claim 1, Characterized in that: The movable base is provided with driving wheels, and the driving wheels are driven by a motor.

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