A hoisting device special for a wind power tower drum

Abstract

The utility model provides a kind of hoisting device special for wind power tower drum belongs to wind power tower drum hoisting technical field, including the flange of wind power tower drum connecting end setting, positioning ring is set in flange lower part body, cross support is set in flange upper part, the one end of cross support far from wind power tower drum center is respectively provided with a first threaded hole, the one end of first threaded hole far from wind power tower drum center is respectively provided with a second threaded hole, hoisting assembly is hingedly set in cross support upper part, the utility model is fixed in flange bottom by positioning ring, cross support is connected and fixed with flange by first bolt, second bolt makes cross support and the arc-shaped clamp plate of positioning ring be connected and fixed, make wind power tower drum be hoisted and stress uniform, again by the first cable of hoisting assembly cooperation vice lifting ring stable main lifting ring, the balance of main lifting ring can be effectively controlled when hoisting, to improve the wind resistance performance when hoisting tower drum, to improve the hoisting effect of wind power tower drum.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine tower hoisting technology, specifically to a special hoisting device for wind turbine towers. Background Technology

[0002] The wind turbine tower is the support structure of a wind turbine generator. It plays a supporting role in the wind turbine generator set and absorbs the vibration of the generator set. Wind turbine generator sets are often quite tall, so cranes with special lifting clamps are often needed to lift the wind turbine tower to a high place for installation during assembly.

[0003] Currently, tower installation requires hoisting equipment. However, due to the tower's weight, the force is uneven during hoisting, resulting in poor tower stability and ultimately affecting the assembly quality. To address these issues, a special hoisting device for wind turbine towers is proposed. Utility Model Content

[0004] In view of this, the present invention provides a special hoisting device for wind turbine towers. The present invention uses a positioning ring fixedly supported at the bottom of the flange, and a first bolt to connect and fix a cross bracket to the flange, and a second bolt to connect and fix the cross bracket to the arc-shaped clamp of the positioning ring. Thus, when the positioning ring is hoisted, the flange and the wind turbine tower can also be hoisted simultaneously, so that the force is evenly distributed during hoisting. Furthermore, the first cable on the hoisting assembly, together with the auxiliary hoisting ring, stabilizes the main hoisting ring, which can effectively control the balance of the main hoisting ring during hoisting, thereby improving the wind resistance performance of the tower and thus improving the hoisting effect of the wind turbine tower.

[0005] To solve the above-mentioned technical problems, this utility model provides a special hoisting device for wind turbine towers, including a flange provided at the connecting end of the wind turbine tower, a positioning ring provided in the lower part of the flange, a cross bracket provided at the upper part of the flange, a first threaded hole provided at the end of the cross bracket away from the center of the wind turbine tower, a second threaded hole provided at the end of the first threaded hole away from the center of the wind turbine tower, and a hoisting component hinged to the upper part of the cross bracket.

[0006] The first threaded hole corresponds to the coaxial threaded hole on the flange. The second threaded hole passes through the cross bracket and is embedded in the positioning ring. The first bolt is installed in the first threaded hole and is used to connect and fix the flange to the cross bracket. The second bolt is installed in the second threaded hole and is used to connect and fix the cross bracket to the positioning ring.

[0007] The positioning ring includes two arc-shaped clamps that fit snugly against the lower surface of the flange. Each arc-shaped clamp is the same size. The two arc-shaped clamps form a ring to support the bottom of the flange. Each arc-shaped clamp has a positioning block at the bottom of its mating joint. The positioning block is used to open a third threaded hole and is also used to connect and fix the two arc-shaped clamps. Each positioning block has a pair of third threaded holes through its middle. The third threaded holes are used to install reinforcing bolts. Each third threaded hole contains a reinforcing bolt. The two positioning blocks on the same side are connected by reinforcing bolts. The reinforcing bolts are used to connect and fix the two positioning blocks on the same side, thereby connecting and fixing the two arc-shaped clamps to form a circle.

[0008] Each of the curved clamps has a slot at the top of its joint, which is used to receive the insert, thus connecting one of the curved clamps to the slot. Each of the other curved clamps has a fixing block at the top of its joint, which is used to install the insert, thus connecting the other curved clamp to the insert. Each fixing block has an insert at the end facing the slot opening, which is used to insert into the slot, thus making the slot and the insert one and the same, thereby strengthening the connection between the two curved clamps and improving their load-bearing stress. The insert and the slot fit together precisely.

[0009] The hoisting assembly includes a connecting plate centrally located at the top of the cross bracket. The connecting plate connects the main lifting ring to the first cable. The main lifting ring is located at the top of the connecting plate and is used to connect to the crane. A first cable is inclinedly installed on each of the four sides of the connecting plate. The first cable connects the connecting plate to the auxiliary lifting ring and also stabilizes the main lifting ring, effectively controlling its balance and improving wind resistance during hoisting. An auxiliary lifting ring is located at the lower end of each first cable and connects the first cable to a fixing plate. A fixing plate is located at the bottom of each auxiliary lifting ring and connects the auxiliary lifting ring to the cross bracket. The fixing plates are installed correspondingly to individual support plates on the cross bracket.

[0010] An upper connecting block is provided on the lower surface of the connecting plate. The upper connecting block is used to connect the connecting plate to the upper buckle. The upper connecting block is circular. Multiple upper buckles are provided on the lower surface of the upper connecting block. The upper buckles are used to fix the upper end of the second cable to the upper connecting block. A second cable is hinged to the lower end of each upper buckle. The second cable is used to assist the first cable in lifting the wind turbine tower, thereby reducing the stress on the first cable. A lower buckle is hinged to the lower end of each second cable. The lower buckle is used to fix the lower end of the second cable to the lower connecting block. A lower connecting block is provided at the lower part of the multiple lower buckles. The lower connecting block is used to connect the lower buckles to the cross bracket. The lower connecting block is fixed to the upper surface of the cross bracket.

[0011] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects: 1. The positioning ring is fixed to the bottom of the flange. The first bolt connects the cross bracket to the flange, and the second bolt connects the cross bracket to the arc-shaped clamp of the positioning ring. Thus, when the positioning ring is lifted, the flange and the wind turbine tower can be lifted at the same time, ensuring even force distribution during lifting. The first cable on the lifting assembly, together with the auxiliary lifting ring, stabilizes the main lifting ring, effectively controlling the balance of the main lifting ring during lifting, thereby improving the wind resistance of the tower and improving the lifting effect of the wind turbine tower.

[0012] 2. The two positioning blocks on the same side are connected by reinforcing bolts. The bottom of the positioning ring is fixed by the reinforcing bolts, and the top of the positioning ring is fixed by the insertion block and the slot, thereby improving the lifting capacity of the positioning ring.

[0013] 3. The second cable uses a vertical chain to facilitate the up and down movement of the main lifting ring, and also to reduce the stress on the first cable, thereby making the hoisting of the wind turbine tower more stable and also improving the service life of the lifting equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a cross-sectional view of the main body of this utility model; Figure 3 This utility model Figure 2 A magnified view of part A; Figure 4 This utility model Figure 2 A magnified view of part B; Figure 5 This is a side sectional view of the present invention; Figure 6 This utility model Figure 5 A magnified view of part C.

[0015] Explanation of reference numerals in the attached drawings: 100, Wind turbine tower; 101, Flange; 200, Positioning ring; 201, Arc-shaped clamp; 202, Positioning block; 203, Third threaded hole; 204, Reinforcing bolt; 205, Slot; 206, Fixing block; 207, Insert block; 300, Cross bracket; 301, First threaded hole; 302, Second threaded hole; 303, First bolt; 304, Second bolt; 400, Lifting assembly; 401, Connecting plate; 402, Main lifting ring; 403, First cable; 404, Second lifting ring; 405, Fixing plate; 406, Upper connecting block; 407, Lower connecting block; 408, Upper buckle; 409, Lower buckle; 410, Second cable. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-6 The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0017] like Figure 1-6 As shown: This embodiment provides a special hoisting device for wind turbine towers, including a flange 101 at the connecting end of the wind turbine tower 100. The wind turbine tower 100 is welded to or integrally fixed to the flange 101. A positioning ring 200 is separately provided at the lower part of the flange 101. The size of the positioning ring 200 can be twice the size of the flange 101, so that the positioning ring 200 formed by the arc-shaped clamping plate 201 can support the flange 101. A cross bracket 300 is provided at the upper part of the flange 101. The cross bracket 300 is composed of four vertical square support plates. The cross bracket 300 is made of steel plate with strong pressure resistance. A first threaded hole 301 is provided at the end of the cross bracket 300 away from the center of the wind turbine tower 100. The size of the first threaded hole 301 is the same as the size of the threaded hole on the flange 101. The first threaded hole 301 passes through the support plate on the cross bracket 300. A second threaded hole 302 is provided at the end of the first threaded hole 301 away from the center of the wind turbine tower 100. A hoisting assembly 400 is hinged on the upper part of the cross bracket 300. The hoisting assembly 400 is used to hoist the wind turbine tower 100 more stably.

[0018] In use, two arc-shaped clamps 201 are joined together to form a positioning ring 200, which is then arranged in a circle. The bottom of the positioning ring 200 is fixed by reinforcing bolts 204. The top of the positioning ring 200 is fixed by inserting blocks 207 and engaging slots 205. The first bolt 303 passes through the first threaded hole 301 to connect and fix the cross bracket 300 to the flange 101. The second bolt 304 passes through the second threaded hole 302 to connect and fix the cross bracket 300 to the arc-shaped clamps 201 of the positioning ring 200. Thus, when the positioning ring 200 is lifted, the flange 101 and the wind turbine tower 100 can also be lifted simultaneously, ensuring even force distribution during lifting. The first cable 403 on the lifting assembly 400 stabilizes the main lifting ring 402, effectively controlling its balance and improving its wind resistance during tower lifting, thereby enhancing the lifting effect of the wind turbine tower 100.

[0019] This embodiment provides a dedicated hoisting device for wind turbine tower 100. like Figure 1 ,2 As shown in Figures 3 and 4: The first threaded hole 301 corresponds to the coaxial threaded hole on the flange 101. The second threaded hole 302 passes through the cross bracket 300 and is embedded in the positioning ring 200. A first bolt 303 is provided in the first threaded hole 301. The first bolt 303 passes through the first threaded hole 301 to connect and fix the cross bracket 300 to the flange 101. The first bolt 303 is used to connect and fix the flange 101 to the cross bracket 300. A second bolt 304 is provided in the second threaded hole 302. The second bolt 304 passes through the second threaded hole 302 to connect and fix the cross bracket 300 to the arc-shaped clamp 201 of the positioning ring 200.

[0020] The effect is as follows: the first bolt 303 passes through the first threaded hole 301, thereby connecting and fixing the cross bracket 300 to the flange 101; the second bolt 304 is used to connect and fix the cross bracket 300 to the positioning ring 200, thereby connecting and fixing the positioning ring 200 to the cross bracket 300.

[0021] like Figure 1 , 5 As shown in Figure 6: The positioning ring 200 includes two arc-shaped clamping plates 201 that fit and abut against the lower surface of the flange 101. Each arc-shaped clamping plate 201 has the same size. The two arc-shaped clamping plates 201 are used to form a ring to support the bottom of the flange 101. A positioning block 202 is provided at the bottom of the joint of each arc-shaped clamping plate 201. The positioning block 202 is used to open a third threaded hole 203 and is also used to connect and fix the two arc-shaped clamping plates 201. A pair of third threaded holes 203 are provided through the middle of each positioning block 202. The third threaded holes 203 are used to install reinforcing bolts 204. The reinforcing bolts 204 pass through the third threaded holes 203, thereby connecting and fixing the two positioning blocks 202, so that the positioning ring 200 can support the flange 101. A reinforcing bolt 204 is provided in each third threaded hole 203.

[0022] The effect is as follows: the two positioning blocks 202 on the same side are connected by reinforcing bolts 204. The reinforcing bolts 204 are used to connect and fix the two positioning blocks 202 on the same side, thereby connecting and fixing the two arc-shaped clamps 201, and forming a circle. Thus, when the positioning ring 200 is lifted, the flange 101 and the wind turbine tower 100 can also be lifted at the same time.

[0023] like Figure 1 , 5As shown in Figure 6: A slot 205 is provided at the top of the joint of one of the arc-shaped clamps 201. The slot 205 is welded and fixed to the arc-shaped clamp 201. The slot 205 is used to receive the insert 207, thus connecting one of the arc-shaped clamps 201 to the slot 205. A fixing block 206 is provided at the top of the joint of the other arc-shaped clamp 201. The fixing block 206 is welded and fixed to the arc-shaped clamp 201. The fixing block 206 is used to install the insert 207, thus connecting the other arc-shaped clamp 201 to the insert 207. Each fixing block 206 has an insert 207 at one end facing the slot of the slot 205. The insert 207 is welded and fixed to the fixing block 206. When the two arc-shaped clamps 201 are joined, the insert 207 precisely enters the slot 205, thereby improving the load-bearing strength of the positioning ring 200.

[0024] Its effect is as follows: the insert 207 is used to insert into the slot 205, thereby making the slot 205 and the insert 207 one, thereby strengthening the connection between the two arc-shaped clamps 201 and improving their load-bearing stress. The insert 207 and the slot 205 fit together precisely.

[0025] like Figure 1 , 2 As shown in Figures 3 and 4: The hoisting assembly 400 includes a connecting plate 401 centrally located on the upper part of the cross bracket 300. The connecting plate 401 is used to connect the main lifting ring 402 to the first cable. Multiple first cables share one connecting plate 401. The main lifting ring 402 is located on the top of the connecting plate 401. The connecting plate 401 and the main lifting ring 402 are welded and fixed. The main lifting ring 402 is used to connect to the crane. A first cable 403 is inclinedly arranged on each of the four sides of the connecting plate 401. The first cable is hinged to the connecting plate 401. The first cable 403 is an inclined guy rope that is hinged to the connecting plate 401. The first cable 403 is used to connect the connecting plate 401 to the auxiliary lifting ring 404. A cable 403 is also used to stabilize the main lifting ring 402, which can effectively control the balance of the main lifting ring 402, thereby improving the wind resistance performance during hoisting. Each first cable 403 is provided with a secondary lifting ring 404 at its lower end. The secondary lifting ring 404 is hinged to the first cable and is used to connect the first cable to the fixing plate 405. Each secondary lifting ring 404 is provided with a fixing plate 405 at its bottom. The fixing plate 405 is welded and fixed to the secondary lifting ring 404 and to the cross bracket 300. The fixing plate 405 is used to connect the secondary lifting ring 404 to the cross bracket 300. The fixing plate 405 is installed corresponding to each individual support plate on the cross bracket 300.

[0026] Its effects are as follows: the connecting plate 401 is used to connect the main lifting ring 402 to the first cable, the first cable 403 is used to connect the connecting plate 401 to the auxiliary lifting ring 404, and the first cable 403 is also used to stabilize the main lifting ring 402, which can effectively control the balance of the main lifting ring 402, thereby improving the wind resistance performance during hoisting.

[0027] like Figure 1 , 2 As shown in Figures 3 and 4: An upper connecting block 406 is provided on the lower surface of the connecting plate 401. The upper connecting block 406 is welded and fixed to the connecting plate 401. The upper connecting block 406 is used to connect the connecting plate 401 to the upper buckle 408. The upper connecting block 406 is circular. Multiple upper buckles 408 are provided on the lower surface of the upper connecting block 406. The upper buckles 408 can be welded to the upper connecting block 406 or fixed by bolts. The upper buckles 408 are used to fix the upper end of the second cable 410 to the upper connecting block 406. A second cable 410 is hinged to the lower end of each upper buckle 408. The second cable 410 uses a vertical chain to facilitate the up and down movement of the main lifting ring 402 and also to reduce the stress on the first cable. The second cable 410 is used to assist the first cable in lifting the wind turbine tower 100, thereby reducing the stress on the first cable. The upper end of the second cable 410 is hinged to the upper buckle 408, and the lower end of the second cable 410 is hinged to the lower buckle 409. Each second cable 410 has a lower buckle 409 hinged to its lower end. The lower buckle 409 and the lower connecting block 407 can be welded or bolted together. The lower buckle 409 is used to fix the lower end of the second cable 410 to the lower connecting block 407. The lower part of the multiple lower buckles 409 is provided with a lower connecting block 407. The lower connecting block 407 is welded to the middle of the upper surface of the cross bracket 300. The lower connecting block 407 is used to connect the lower buckle 409 to the cross bracket 300.

[0028] Its effect is that the second cable 410 adopts a vertical chain to facilitate the up and down movement of the main lifting ring 402, and also to reduce the stress on the first cable, thereby making the hoisting of the wind turbine tower 100 more stable.

[0029] Working principle: Two arc-shaped clamping plates 201 are joined to form a positioning ring 200, which then forms a circle. The bottom of the positioning ring 200 is fixed by reinforcing bolts 204. The top of the positioning ring 200 is fixed by the cooperation of the insert block 207 and the slot 205. Then, the first bolt 303 passes through the first threaded hole 301 to connect and fix the cross bracket 300 to the flange 101. The second bolt 304 passes through the second threaded hole 302 to connect and fix the cross bracket 300 to the arc-shaped clamping plate 201 of the positioning ring 200. Thus, when... When the positioning ring 200 is lifted, the flange 101 and the wind turbine tower 100 can also be lifted at the same time, so that the force is evenly distributed during the lifting. Then, the main lifting ring 402 is stabilized by the first cable 403 on the lifting assembly 400, which can effectively control the balance of the main lifting ring 402, thereby improving the wind resistance performance when lifting the tower. Furthermore, the second cable 410 adopts a vertical chain to facilitate the up and down movement of the main lifting ring 402, and also to reduce the stress on the first cable, thereby making the lifting of the wind turbine tower 100 more stable, and thus improving the lifting effect of the wind turbine tower 100.

[0030] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A hoisting device special for wind power tower, comprising a flange (101) arranged at a connecting end of a wind power tower (100), characterized in that: The lower part of the flange (101) is provided with a positioning ring (200), and the upper part of the flange (101) is provided with a cross bracket (300). The cross bracket (300) is provided with a first threaded hole (301) at one end away from the center of the wind turbine tower (100), and a second threaded hole (302) is provided at the other end of the first threaded hole (301) away from the center of the wind turbine tower (100). The upper part of the cross bracket (300) is hinged with a hoisting assembly (400).

2. A windmill tower (100) specific hoisting device according to claim 1, characterized in that: The first threaded hole (301) corresponds to the coaxial threaded hole on the flange (101), and the second threaded hole (302) passes through the cross bracket (300) and is embedded in the positioning ring (200). A first bolt (303) is provided in the first threaded hole (301), and a second bolt (304) is provided in the second threaded hole (302).

3. A windmill tower (100) specific hoisting device according to claim 2, characterized in that: The positioning ring (200) includes two arc-shaped clamps (201) that fit and abut against the lower surface of the flange (101). Each arc-shaped clamp (201) has a positioning block (202) at the bottom of its abutment. Each positioning block (202) has a pair of third threaded holes (203) through its middle. Each third threaded hole (203) has a reinforcing bolt (204) inside it. The two positioning blocks (202) on the same side are connected by the reinforcing bolts (204).

4. A windmill tower (100) specific hoisting device according to claim 3, characterized in that: One of the arc-shaped clamps (201) has a slot (205) at the top of the joint, and the other arc-shaped clamp (201) has a fixing block (206) at the top of the joint. Each fixing block (206) has an insert (207) at one end facing the slot (205), and the insert (207) fits precisely with the slot (205).

5. A wind turbine tower (100) specific hoisting arrangement according to claim 4, characterized in that: The hoisting assembly (400) includes a connecting plate (401) centrally located on the upper part of the cross bracket (300). A main lifting ring (402) is provided on the top of the connecting plate (401). A first cable (403) is inclinedly provided on each of the four sides of the connecting plate (401). A secondary lifting ring (404) is provided at the lower end of each first cable (403). A fixing plate (405) is provided at the bottom of each secondary lifting ring (404). The fixing plate (405) is installed corresponding to a single support plate on the cross bracket (300).

6. A wind turbine tower (100) specific hoisting arrangement according to claim 5, characterized in that: The lower surface of the connecting plate (401) is provided with an upper connecting block (406), which is circular. The lower surface of the upper connecting block (406) is provided with multiple upper buckles (408). The lower end of each upper buckle (408) is hinged with a second cable (410). The lower end of each second cable (410) is hinged with a lower buckle (409). The lower part of the multiple lower buckles (409) is provided with a lower connecting block (407). The lower connecting block (407) is fixed to the upper surface of the cross bracket (300).

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