Moving platform for girth welding of wind power tower

Abstract

The utility model discloses a wind power tower girth welding mobile platform which comprises a working table, the top of the working table is slidably connected with two symmetrically distributed sliding seats, the sliding seats are slidably connected with the working table, the top of each sliding seat is fixedly connected with two symmetrically distributed supporting frames, and the supporting frames are fixedly connected with the working table. A supporting wheel is hinged to the interior of the supporting frame, a fixing frame is fixedly connected to the position, located on the outer side of the supporting frame, of the top of the supporting frame, and a rotating wheel is hinged to the interior of the fixing frame. The tower drum can be supported by designing the supporting wheel and the rotating wheel, the output end of the driving motor can drive the screw rod to rotate under the action of the driving motor, threaded movement of the connecting block can be achieved, the connecting block can drive the sliding seats to horizontally move, and then the distance between the sliding seats at the two ends can be adjusted. Tower barrels at the two ends can be subjected to butt joint conveniently, and the device can be conveniently suitable for welding of circular seams after butt joint of tower barrels with different lengths.

Description

Technical Field

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

[0002] The wind turbine tower is an indispensable and important component of a wind turbine generator set. It is mainly used to support the wind turbine generator set and can also absorb the vibration of the unit. The diameter of a wind turbine tower is generally between 3m and 5m, and the larger diameter may reach 10m. It is very large and heavy. Due to the large size of the tower, during the production and processing of the wind turbine tower, it is necessary to butt the two towers together with the circumferential seam, and then weld them together to achieve the combination of the towers. A welding platform is required for welding. The current welding platform is not convenient for butting the towers when in use, and when positioning the tower, it is usually positioned by clamping, which has insufficient positioning effect and may deviate during welding, affecting the welding effect. Therefore, improvements are needed. Utility Model Content

[0003] The utility model aims to provide a mobile platform for welding the annular seam of a wind power tower, which solves the problem of inconvenience in welding the towers and the problem of insufficient tower positioning effect.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mobile platform for annular seam welding of a wind turbine tower, comprising a workbench, the top of the workbench is slidably connected to two symmetrically distributed slides, the slides are slidably connected to the workbench, the top of each slide is fixedly connected to two symmetrically distributed support frames, the support frames are hinged with support wheels inside, the top of the support frames and the outside of the support frames are fixedly connected with a fixed frame, the inside of the fixed frame is hinged with a rotating wheel, the outside of the fixed frame is fixedly connected with a rotating motor, the output end of the rotating motor is rotatably connected to the fixed frame, the output end of the rotating motor is fixedly connected to the rotating wheel, the outside of the sliding seat is fixedly sleeved with a bracket, the bracket is slidably connected to the workbench, the sliding seat is provided with a moving mechanism, and the bracket is provided with a positioning mechanism.

[0005] Preferably, the moving mechanism includes a driving motor, the right end of the workbench is fixedly connected to the driving motor, the output end of the driving motor is rotatably connected to the workbench, the left end of the output end of the driving motor is fixedly connected to a screw, the screw is rotatably connected to the workbench through a bearing, the outer side of the screw is threadedly connected to two symmetrically distributed connecting blocks, the connecting block is slidably connected to the workbench, a guide groove is provided inside the workbench, a ball is slidably connected inside the guide groove, the ball is movably sleeved inside the connecting block, the end of the connecting block away from the inner side wall of the workbench is fixedly connected to a guide rod, the guide rod is slidably connected to the workbench. By designing a moving mechanism, it is convenient to align the two towers.

[0006] Preferably, a rotation slot is provided inside the workbench, and the output end of the driving motor is rotatably connected inside the rotation slot. By designing the rotation slot, the output end of the driving motor can rotate inside the workbench.

[0007] Preferably, the screw rod is provided with positive threads and negative threads, and the positive threads and negative threads are symmetrically distributed on the screw rod. By designing the screw rod, the rotation of the screw rod can realize the movement of the two connecting blocks in opposite directions.

[0008] Preferably, the positioning mechanism includes a hydraulic cylinder, the top of the bracket is fixedly connected with the hydraulic cylinder, the output end of the hydraulic cylinder is slidably connected to the bracket, the lower end of the output end of the hydraulic cylinder is fixedly connected with a pressure block, the outer side of the pressure block is fixedly connected with a connecting frame, the inside of the connecting frame is connected with a rotating rod through a thread, the top of the rotating rod is rotatably connected with a top block through a bearing, the bottom of the connecting frame and both sides of the rotating rod are fixedly connected with sliding rods, and the sliding rods are slidably connected to the connecting frame. By designing a positioning mechanism, the tower can be positioned and welded.

[0009] Preferably, a through slot is provided inside the bracket, and the output end of the hydraulic cylinder is slidably connected inside the through slot. By designing the through slot, the output end of the hydraulic cylinder can rotate inside the bracket.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. The utility model can support the tower by designing the supporting wheel and the rotating wheel. Through the action of the driving motor, the output end of the driving motor can drive the screw to rotate, so as to realize the threaded movement of the connecting block. The connecting block can drive the slide to move horizontally, and then the distance between the slides at both ends can be adjusted, so as to facilitate the butt joint of the towers at both ends and facilitate the welding of the annular seams after butt joint of towers of different lengths.

[0012] 2. The utility model designs the function of the hydraulic cylinder. The output end of the hydraulic cylinder can drive the pressure block to move downward, so as to press the tower downward and position it. At the same time, through the threaded connection between the rotary rod and the connecting frame, the rotary rod can be rotated to realize the displacement of the top block in the vertical direction. The top block can be supported from the inner wall of the tower. By cooperating with the pressure block, the tower can be positioned more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 A three-dimensional cross-sectional view of the local structure;

[0015] Figure 3 For this utility model Figure 2 A magnified image of point A;

[0016] Figure 4 For this utility model Figure 1 A front cross-sectional view of a local structure of a bracket;

[0017] Figure 5 For this utility model Figure 4 Enlarged view of point B.

[0018] In the figure: 1. workbench; 2. slide; 3. support frame; 4. support wheel; 5. fixed frame; 6. rotating wheel; 7. rotating motor; 8. moving mechanism; 9. positioning mechanism; 10. bracket; 81. driving motor; 82. rotating groove; 83. screw rod; 84. connecting block; 85. guide groove; 86. ball bearing; 87. guide rod; 91. hydraulic cylinder; 92. through groove; 93. pressure block; 94. connecting frame; 95. rotating rod; 96. top block; 97. sliding rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 , Figure 2A mobile platform for welding annular seams of wind power towers comprises a workbench 1, the top of the workbench 1 is slidably connected to two symmetrically distributed slides 2, the slides 2 are slidably connected to the workbench 1, the top of each slide 2 is fixedly connected to two symmetrically distributed support frames 3, the inside of the support frame 3 is hinged with a support wheel 4, the top of the support frame 3 and the outside of the support frame 3 is fixedly connected with a fixed frame 5, the inside of the fixed frame 5 is hinged with a rotating wheel 6, the outside of the fixed frame 5 is fixedly connected with a rotating motor 7, the output end of the rotating motor 7 is rotatably connected to the fixed frame 5, and the output end of the rotating motor 7 is fixedly connected to the rotating wheel 6, the outside of the slide 2 is fixedly sleeved with a bracket 10, the bracket 10 is slidably connected to the workbench 1, a moving mechanism 8 is arranged on the slide 2, and a positioning mechanism 9 is arranged on the bracket 10.

[0021] See also Figure 1 , Figure 2 , Figure 3 The moving mechanism 8 includes a driving motor 81. The right end of the workbench 1 is fixedly connected to the driving motor 81. The output end of the driving motor 81 is rotatably connected to the workbench 1. A rotating groove 82 is provided inside the workbench 1. The output end of the driving motor 81 is rotatably connected inside the rotating groove 82. By designing the rotating groove 82, the output end of the driving motor 81 can rotate inside the workbench 1. The left end of the output end of the driving motor 81 is fixedly connected to a screw rod 83. The screw rod 83 is rotatably connected to the workbench 1 through a bearing. The outer side of the screw rod 83 is connected to two symmetrically distributed connecting blocks 84 through threads. The screw rod 83 A positive thread and a negative thread are arranged on the screw 83, and the positive thread and the negative thread are symmetrically distributed on the screw 83. By designing the screw 83, the rotation of the screw 83 can realize the movement of the two connecting blocks 84 in opposite directions. The connecting block 84 is slidably connected to the workbench 1. A guide groove 85 is opened inside the workbench 1. A ball 86 is slidably connected inside the guide groove 85. The ball 86 is movably sleeved inside the connecting block 84. One end of the connecting block 84 away from the inner wall of the workbench 1 is fixedly connected with a guide rod 87, and the guide rod 87 is slidably connected to the workbench 1. By designing the moving mechanism 8, it is convenient to align the two towers.

[0022] See also Figure 1 , Figure 4 , Figure 5The positioning mechanism 9 includes a hydraulic cylinder 91. The top of the bracket 10 is fixedly connected with the hydraulic cylinder 91. The output end of the hydraulic cylinder 91 is slidably connected to the bracket 10. A through groove 92 is provided inside the bracket 10. The output end of the hydraulic cylinder 91 is slidably connected inside the through groove 92. By designing the through groove 92, the output end of the hydraulic cylinder 91 can rotate in the bracket 10. The lower end of the output end of the hydraulic cylinder 91 is fixedly connected with a pressure block 93. The outer side of the pressure block 93 is fixedly connected with a connecting frame 94. The inside of the connecting frame 94 is connected with a rotating rod 95 through a thread. The top of the rotating rod 95 is rotatably connected with a top block 96 through a bearing. The bottom of the connecting frame 94 and both sides of the rotating rod 95 are fixedly connected with sliding rods 97. The sliding rods 97 are slidably connected to the connecting frame 94. By designing the positioning mechanism 9, the tower can be positioned and welded.

[0023] The specific implementation process of the utility model is as follows: when in use, the tower is first placed on the supporting wheel 4 and the rotating wheel 6 to support the tower. When the tower needs to be positioned, the hydraulic cylinder 91 is started, and the output end of the hydraulic cylinder 91 drives the pressure block 93 to move downward, and the pressure block 93 drives the connecting frame 94 to move downward. The pressure block 93 contacts the top of the tower to press the tower downward for positioning, and then the rotary rod 95 is rotated, and the rotary rod 95 performs a threaded motion, and the rotary rod 95 drives the top block 96 to move upward, and the top block 96 drives the sliding rod 97 to slide along the connecting frame 94, so that the top block 96 is supported from the inner wall of the tower, and the positioning of the tower can be achieved by cooperating with the pressure block 93, and the positioning is more stable.

[0024] After the positioning is completed, the output end of the driving motor 81 drives the screw 83 to rotate, so that the connecting block 84 makes a threaded motion, and the connecting block 84 drives the guide rod 87 to slide along the workbench 1, and at the same time, the connecting block 84 drives the ball 86 to slide along the guide groove 85, and at the same time, the connecting block 84 drives the slide 2 to move, and the two slides 2 move in opposite directions, so that the towers at both ends are in contact with each other after positioning, which is convenient for aligning the towers at both ends and accommodating the welding of the annular seams of towers of different lengths after docking. Start the rotating motor 7, and the output end of the rotating motor 7 drives the rotating wheel 6 to rotate, which can drive the tower to rotate, and the welding of the tower annular seam can be carried out.

[0025] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mobile platform for welding annular seams of wind turbine towers, comprising a workbench (1), characterized in that: The top of the workbench (1) is slidably connected to two symmetrically distributed slides (2), the slides (2) are slidably connected to the workbench (1), the top of each slide (2) is fixedly connected to two symmetrically distributed support frames (3), the inside of the support frame (3) is hinged with a support wheel (4), the top of the support frame (3) and located on the outside of the support frame (3) is fixedly connected to a fixed frame (5), the inside of the fixed frame (5) is hinged with a rotating wheel (6), the outside of the fixed frame (5) is fixedly connected to a rotating motor (7), the output end of the rotating motor (7) is rotatably connected to the fixed frame (5), and the output end of the rotating motor (7) is fixedly connected to the rotating wheel (6), the outside of the slide (2) is fixedly sleeved with a bracket (10), the bracket (10) is slidably connected to the workbench (1), the slide (2) is provided with a moving mechanism (8), and the bracket (10) is provided with a positioning mechanism (9).

2. A mobile platform for welding annular seams of wind turbine towers according to claim 1, characterized in that: The moving mechanism (8) comprises a driving motor (81), the right end of the workbench (1) is fixedly connected to the driving motor (81), the output end of the driving motor (81) is rotatably connected to the workbench (1), the left end of the output end of the driving motor (81) is fixedly connected to a screw rod (83), the screw rod (83) is rotatably connected to the workbench (1) via a bearing, the outer side of the screw rod (83) is connected to two symmetrically distributed connecting blocks (84) via threads, the connecting block (84) is slidably connected to the workbench (1), a guide groove (85) is provided inside the workbench (1), a ball (86) is slidably connected inside the guide groove (85), the ball (86) is movably sleeved inside the connecting block (84), one end of the connecting block (84) away from the inner side wall of the workbench (1) is fixedly connected to a guide rod (87), the guide rod (87) is slidably connected to the workbench (1).

3. A mobile platform for welding annular seams of wind turbine towers according to claim 1, characterized in that: A rotating groove (82) is provided inside the workbench (1), and the inside of the rotating groove (82) is rotatably connected to the output end of the driving motor (81).

4. A mobile platform for welding annular seams of wind turbine towers according to claim 2, characterized in that: The screw rod (83) is provided with positive threads and negative threads, and the positive threads and negative threads are symmetrically distributed on the screw rod (83).

5. The mobile platform for welding annular seams of wind turbine towers according to claim 1, characterized in that: The positioning mechanism (9) comprises a hydraulic cylinder (91), the top of the bracket (10) is fixedly connected to the hydraulic cylinder (91), the output end of the hydraulic cylinder (91) is slidably connected to the bracket (10), the lower end of the output end of the hydraulic cylinder (91) is fixedly connected to a pressure block (93), the outer side of the pressure block (93) is fixedly connected to a connecting frame (94), the interior of the connecting frame (94) is connected to a rotating rod (95) by a thread, the top of the rotating rod (95) is rotatably connected to a top block (96) by a bearing, and the bottom of the connecting frame (94) and both sides of the rotating rod (95) are fixedly connected to sliding rods (97), and the sliding rods (97) are slidably connected to the connecting frame (94).

6. The mobile platform for welding annular seams of wind turbine towers according to claim 1, characterized in that: A through slot (92) is provided inside the bracket (10), and the output end of the hydraulic cylinder (91) is slidably connected inside the through slot (92).

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