Auxiliary tool for welding flange at bottom of wind power tower drum

Abstract

The utility model discloses an auxiliary welding tool for a bottom flange of a wind power tower. Before welding, a flange needs to be hoisted, after hoisting, the position of the flange is adjusted to enable the flange to be approximately concentric with the bottom of a wind power tower drum and to be in contact with the bottom of the wind power tower drum, and then welding is conducted, however, in the mode, the position of the flange is often changed during welding, and the welding effect is affected. The device comprises a wind power tower drum and a flange, and is characterized in that a plurality of clamping devices are clamped between the wind power tower drum and the flange, so that the flange and the wind power tower drum are concentric; the clamping device comprises a U-shaped clamping plate and an outer thread sleeve, two rib plates are fixed to the U-shaped clamping plate, the outer thread sleeve is connected between the two rib plates, the two ends of the outer thread sleeve are in threaded connection with screws respectively, the ends of the screws are fixed to an outer connecting plate, and an abutting plate is fixed to the outer connecting plate. The device is used for assisting welding of the bottom flange of the wind power tower.

Description

Technical Field

[0001] The utility model relates to an auxiliary tool for welding a flange at the bottom of a wind power tower. Background Art

[0002] The bottom flange of the wind turbine tower needs to be welded when connected to the wind turbine tower. Before welding, the flange needs to be lifted and the position of the flange is adjusted so that the flange is roughly concentric with the bottom of the wind turbine tower and in contact with it before welding. However, this method often causes the flange position to change during welding, which affects the welding effect. Utility Model Content

[0003] The purpose of the utility model is to provide a wind power tower bottom flange welding auxiliary tooling to solve the above-mentioned problems.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A wind turbine tower bottom flange welding auxiliary tool, comprising: a wind turbine tower and a flange, wherein a plurality of clamping devices are clamped between the wind turbine tower and the flange to make the flange concentric with the wind turbine tower;

[0006] The clamping device includes a U-shaped clamp and an external screw sleeve. Two ribs are fixed on the U-shaped clamp. The external screw sleeve is connected between the two ribs. The two ends of the external screw sleeve are respectively threadedly connected to the screw rod. The end of the screw rod is fixed on the external connecting plate, and a supporting plate is fixed on the external connecting plate.

[0007] In the auxiliary tooling for welding the bottom flange of a wind turbine tower, two guide pillars are respectively fixed on both sides of the U-shaped clamping plate, and the guide pillars pass through the circular holes on the outer connecting plates on the corresponding sides.

[0008] In the auxiliary tooling for welding the bottom flange of a wind turbine tower, a plurality of threaded connection holes are provided on the U-shaped clamping plate.

[0009] In the wind turbine tower bottom flange welding auxiliary tooling, a nut is fixed on the outer threaded sleeve. Beneficial effects

[0010] 1. The present invention clamps the flange and the wind turbine tower by providing at least three clamping devices, thereby ensuring the concentricity between the flange and the wind turbine tower and ensuring the welding effect.

[0011] 2. The utility model has a simple structure, and each clamping device can quickly adjust its position to clamp the flange, thereby improving the efficiency of flange position adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attachment Figure 1It is a structural diagram of the utility model;

[0013] Attachment Figure 2 It is a three-dimensional diagram of the utility model;

[0014] Attachment Figure 3 It is the main view of the utility model;

[0015] Attachment Figure 4 It is a rear view of the utility model;

[0016] Attachment Figure 5 It is attached Figure 3 A magnified view of part A;

[0017] In the figure: 1. Flange; 2. Wind turbine tower; 3. Clamping device; 4. Rib; 5. U-shaped clamp; 6. Fixing bolt; 7. External threaded sleeve; 8. External connecting plate; 9. Guide column; 10. Screw; 11. Nut; 12. Abutment plate; 13. Notch; 14. Through hole; 15. Threaded connection hole; 16. Threaded inner hole. DETAILED DESCRIPTION

[0018] Reference Figure 1-Figure 4 , a wind turbine tower bottom flange welding auxiliary tooling, which comprises: a wind turbine tower 2 and a flange 1, wherein a plurality of clamping devices 3 are clamped between the wind turbine tower and the flange to make the flange and the wind turbine tower concentric;

[0019] The clamping device includes a U-shaped clamping plate 5 and an external screw sleeve 7. Two ribs 4 are fixed on the U-shaped clamping plate. The external screw sleeve is connected between the two ribs. The two ends of the external screw sleeve are respectively connected to the ribs through bearings. The two ends of the external thread are respectively provided with threaded inner holes 16. The threaded inner holes have internal threads. The internal threads of the two threaded inner holes are in opposite directions. Each threaded inner hole is threadedly connected to a screw rod 10. The two screw rods are also screws with opposite thread directions. The end of the screw rod is fixed on the external connecting plate. A supporting plate 12 is fixed on the external connecting plate. The end of the supporting plate is an arc with the same curvature as the arc of the outer wall of the wind turbine tower.

[0020] In the auxiliary tooling for welding the bottom flange of a wind turbine tower, two guide pillars 9 are fixed on both sides of the U-shaped clamping plate, and the guide pillars pass through the circular holes on the outer connecting plates on the corresponding sides.

[0021] In the auxiliary tooling for welding the bottom flange of a wind turbine tower, a plurality of threaded connection holes 15 are provided on the U-shaped clamping plate.

[0022] In the auxiliary tooling for welding the bottom flange of a wind turbine tower, a nut 11 is fixed on the outer threaded sleeve.

[0023] Working principle: When in use, lift the flange and adjust its position so that the flange contacts the bottom of the wind turbine tower and then stop. Buckle one of the clamping devices on the flange so that its threaded connection hole is aligned with the through hole 14 on the flange. Then, a fixing bolt 6 is threaded into each threaded connection hole until the end of the fixing bolt is inserted into the through hole 14 of the flange and stops. Use a wrench to twist the outer sleeve through the nut. The nut is welded to the outer sleeve. The outer sleeve rotates and is threadedly connected to the screw rod, so that the screw rods on both sides move in opposite directions at the same time, so that the abutment plates of the two outer connecting rods move in opposite directions at the same time, and stop when the abutment plates contact the wall of the wind turbine tower. At this time, a clamping device adjusts the position of the flange. After clamping all three clamping devices, the flange position can be fully adjusted, ensuring the stability of the position during flange welding.

Claims

1. A wind turbine tower bottom flange welding auxiliary tool, comprising: The wind turbine tower and flange are characterized in that: a plurality of clamping devices are clamped between the wind turbine tower and the flange to make the flange and the wind turbine tower concentric; The clamping device includes a U-shaped clamp and an external screw sleeve. Two ribs are fixed on the U-shaped clamp. The external screw sleeve is connected between the two ribs. The two ends of the external screw sleeve are respectively threadedly connected to the screw rod. The end of the screw rod is fixed on the external connecting plate, and a supporting plate is fixed on the external connecting plate.

2. The auxiliary tool for welding the bottom flange of a wind turbine tower according to claim 1 is characterized by: Two guide posts are fixed on both sides of the U-shaped clamping plate, and the guide posts pass through the circular holes on the outer connecting plates on the corresponding sides.

3. The auxiliary tool for welding the bottom flange of a wind turbine tower according to claim 2, characterized in that: The U-shaped clamping plate is provided with a plurality of threaded connection holes.

4. The auxiliary tool for welding the bottom flange of a wind turbine tower according to claim 3 is characterized by: A nut is fixed on the outer screw sleeve.

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