Tower drum auxiliary pushing device for assembling wind power discharge unit

Abstract

The utility model provides a tower drum auxiliary pushing device for assembling a wind power discharge unit. The tower drum auxiliary pushing device comprises a crawler vehicle body, a supporting arm and a mounting ring. The crawler body has a mounting frame. The advancing direction of the tracked vehicle body is set as a first direction, and the horizontal direction perpendicular to the first direction is set as a second direction. The number of the supporting arms is two, the two supporting arms are arranged at intervals in the second direction, one end of each supporting arm is connected with the mounting frame, and the other end of each supporting arm extends upwards. The mounting ring is located between the two supporting arms, and the outer edge of the mounting ring is provided with two connecting shaft ends rotationally connected with the extending ends of the supporting arms. And a plurality of connecting holes capable of being connected with the flange end of the tower drum are annularly formed in the mounting ring. The tower drum auxiliary pushing device for assembling the wind power discharge unit can ensure that the tower drum is completely in an upright state and then is disconnected from the tower drum, so that the tower drum can be prevented from swinging, the safety is improved, and the practicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of tower hoisting, and in particular relates to a tower auxiliary pushing device for assembling a wind power discharge unit. Background Art

[0002] A wind turbine is a system that converts wind kinetic energy into electrical energy. It typically consists of a supporting tower and a rotor mounted on top. However, the tower is typically divided into multiple sections to facilitate long-distance transport on trailers and subsequent installation or assembly. During the tower installation process—the process of transferring the tower from the trailer to the installation location and erecting it upright—a lifting device is typically used to lift one end of the tower. As this end is raised, the tower itself pitches upward.

[0003] In the prior art, to avoid damage to the bottom end (excessive local stress caused by the other end touching the ground), another lifting device is usually used to lift the other end of the tower so that the tower can be flipped in a suspended state. This method avoids interference between the two lifting devices or the lifting device corresponding to the bottom end and the tower. The connection between the bottom end of the tower and the corresponding lifting device can only be released when the tower is not fully upright. However, after the connection is released, or during the process of disconnection, the tower will be subjected to a horizontal component force, causing it to swing, which can easily injure workers operating below the tower, resulting in poor safety and practicality. Utility Model Content

[0004] The embodiment of the utility model provides a tower auxiliary pushing device for assembling a wind power discharge unit, aiming to solve the problem of poor practicality caused by poor safety in the existing tower installation process.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a tower auxiliary propulsion device for assembling a wind power discharge unit, comprising:

[0006] The crawler vehicle body has a mounting frame; the moving direction of the crawler vehicle body is set as a first direction, and the horizontal direction perpendicular to the first direction is set as a second direction;

[0007] There are two support arms, the two support arms are spaced apart along the second direction, one end of each support arm is connected to the mounting frame, and the other end extends upward;

[0008] The mounting ring is located between the two support arms. The outer edge of the mounting ring is provided with a connecting shaft end that is rotatably connected to the protruding ends of the two support arms; the mounting ring is provided with a plurality of connecting holes in an annular shape for connecting the tower flange end.

[0009] In a possible implementation, the tower auxiliary propulsion device for assembling the wind power discharge unit further includes:

[0010] a rotating shaft, rotatably disposed on the mounting frame along the second direction, with both ends of the rotating shaft extending out of the mounting frame to be fixedly connected to the two support arms respectively;

[0011] There are two first telescopic structures, which are spaced apart along the second direction. The fixed end of each first telescopic structure is rotatably disposed on the mounting frame, and the telescopic end is rotatably connected to the corresponding support arm.

[0012] In a possible implementation, the first telescopic structure is a self-locking hydraulic cylinder.

[0013] In a possible implementation, the tower auxiliary propulsion device for assembling a wind power discharge unit further includes a balancing component, and the balancing component includes:

[0014] A gravity block is slidably disposed in the first direction in a limited sliding cavity provided in the mounting frame;

[0015] There are at least two second telescopic structures, both of which are arranged along the first direction and spaced apart along the second direction. The fixed end of each second telescopic structure is fixedly connected to the mounting frame, and the other end is connected to the gravity block. The second telescopic structure is used to drive the gravity block to slide out of the limiting sliding cavity in the opposite direction when the mounting ring moves toward the outside of the crawler vehicle body.

[0016] In a possible implementation, a connecting sliding cavity is further provided in the mounting frame. The connecting sliding cavity is located at an end of the mounting frame away from the limiting sliding cavity and corresponds to the limiting sliding cavity.

[0017] In a possible implementation, a first positioning hole is provided on the gravity block, and a second positioning hole communicating with the connecting sliding cavity is correspondingly provided on the mounting bracket.

[0018] In a possible implementation, the second telescopic structure is a self-locking hydraulic cylinder.

[0019] In this implementation, the tracked vehicle is heavy and has a high load-bearing capacity, suitable for the weight of the tower. The support arms on the mounting frame support the mounting ring, which in turn forms a flange connection with the flange surface at the bottom of the tower. This structure supports the bottom of the tower during the vertical lifting of the tower by the hoisting equipment, pushing the bottom of the tower toward the hoisting equipment. This ensures that the tower is fully upright before the connection with the tower is released, preventing tower swing, improving safety, and enhancing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of the tower auxiliary propulsion device for wind power discharge unit assembly provided by the embodiment of the utility model Figure 1 ;

[0021] Figure 2 Schematic diagram of the structure of the tower auxiliary propulsion device for wind power discharge unit assembly provided by the embodiment of the utility model Figure 2 ;

[0022] Figure 3 A schematic diagram of the main structure of the tower auxiliary propulsion device for assembling a wind-powered discharge unit provided by an embodiment of the present invention (two units working in combination)

[0023] Description of reference numerals:

[0024] 10. Tracked vehicle body; 11. Mounting frame; 111. Position-limiting sliding cavity; 12. Connecting sliding cavity; 121. Second positioning hole;

[0025] 20. Support arm;

[0026] 30. Mounting ring;

[0027] 40. Rotating shaft;

[0028] 50. First telescopic structure;

[0029] 60. Balancing assembly; 61. Gravity block; 611. First positioning hole; 62. Second telescopic structure. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] Please also refer to Figure 1 and Figure 2 , the tower auxiliary pushing device for assembling a wind power discharge unit provided by the present invention is now described. The tower auxiliary pushing device for assembling a wind power discharge unit includes a tracked vehicle body 10, a support arm 20 and a mounting ring 30. The tracked vehicle body 10 has a mounting frame 11. The moving direction of the tracked vehicle body 10 is set as the first direction, and the horizontal direction perpendicular to the first direction is set as the second direction. There are two support arms 20, and the two support arms 20 are arranged at intervals along the second direction. One end of each support arm 20 is connected to the mounting frame 11, and the other end extends upward. The mounting ring 30 is located between the two support arms 20, and a connecting shaft end rotatably connected to the two protruding ends of the support arms 20 is provided on the outer edge of the mounting ring 30. A plurality of connecting holes for connecting the tower flange end are provided in an annular shape on the mounting ring 30.

[0032] Compared to the prior art, the tower-assisted propulsion device for wind turbine assembly provided in this embodiment features a heavier, more robust crawler-type vehicle body that can accommodate the weight of the tower. The support arm 20 provided on the mounting frame 11 ensures support for the mounting ring 30, which in turn ensures flange connection with the flange surface at the bottom of the tower. This structure ensures that the bottom of the tower is supported and pushed toward the lifting equipment during the process of hoisting the tower upright. This ensures that the tower is fully upright before the connection with the tower is released, preventing the tower from swinging, improving safety, and enhancing practicality.

[0033] In some embodiments, see Figure 1 and Figure 2 The tower-assisted propulsion device for wind turbine assembly also includes a rotating shaft 40 and a first telescopic structure 50. The rotating shaft 40 is rotatably mounted on the mounting frame 11 along the second direction. Both ends of the rotating shaft 40 extend beyond the mounting frame 11 to provide fixed connection to the two support arms 20. Two first telescopic structures 50 are provided, spaced apart along the second direction. Each first telescopic structure 50 has a fixed end rotatably mounted on the mounting frame 11 and a telescopic end rotatably connected to the corresponding support arm 20.

[0034] When it comes to transporting the tower by a trailer, usually after the tower is transported to the installation location, the tower is first removed from the crane by lifting equipment, placed on the ground, and then assembled. The installation of the lifting equipment during the lifting process is time-consuming and labor-intensive.

[0035] The support arm 20 is integrally connected via the rotating shaft 40 and is driven by the two first telescopic structures 50, thereby ensuring that the height of the support ring can be adjusted to adapt to the height of the trailer, facilitating the removal of the tower from the trailer, and being able to be directly installed after being removed from the trailer, thereby improving assembly efficiency.

[0036] In some embodiments, the first telescopic structure 50 may be configured as follows: Figure 1 The structure shown. Figure 1 The first telescopic structure 50 is a self-locking hydraulic cylinder, which can ensure the stability of the flipping position of the support arm 20.

[0037] In some embodiments, see Figure 2The tower auxiliary propulsion device for assembling a wind turbine generator set further includes a balancing assembly 60, which includes a weight block 61 and a second telescopic structure 62. The weight block 61 is slidably arranged in a limited sliding cavity 111 provided in the mounting frame 11 along a first direction. At least two second telescopic structures 62 are provided, and both second telescopic structures 62 are arranged along the first direction and spaced apart along the second direction. The fixed end of each second telescopic structure 62 is fixedly connected to the mounting frame 11, and the other end is connected to the weight block 61. The second telescopic structure 62 can drive the weight block 61 to slide out of the limited sliding cavity 111 in the opposite direction when the mounting ring 30 moves toward the outside of the tracked vehicle body 10.

[0038] The gravity block 61 is hidden in the limiting sliding cavity 111 in the normal state, and slides out of the limiting sliding cavity 111 only after the second telescopic structure 62 is extended. Figure 3 When the mounting ring 30 is moved to the outside of the crawler body 10, especially after it is connected to the tower, the extended end of the support arm 20 is subjected to a large force, which in turn generates a large torque, which may cause the rear end of the crawler body 10 to tilt. Therefore, the weight block 61 can ensure that this torque is balanced in the opposite direction, thereby ensuring overall stability.

[0039] The gravity block 61 may be a rectangular parallelepiped structure, and the limiting sliding cavity 111 may be a rectangular parallelepiped cavity.

[0040] In some embodiments, the mounting frame 11 may be configured as follows: Figure 2 and Figure 3 The structure shown. Figure 2 and Figure 3 The mounting frame 11 is further provided with a connecting sliding cavity 12 , which is located at one end of the mounting frame 11 away from the limiting sliding cavity 111 and corresponds to the limiting sliding cavity 111 .

[0041] Regarding the correspondence between the connecting sliding cavity 12 and the limiting sliding cavity 111 , it can be understood that the connecting sliding cavity 12 and the limiting sliding cavity 111 have the same cross-section, and only the length of the connecting sliding cavity 12 is smaller than that of the limiting sliding cavity 111 .

[0042] Because after the support arm 20 pitches and rotates to adjust the height of the mounting ring 30, the mounting ring 30 will move out of the tracked vehicle body 10. At this time, after the mounting ring 30 is connected to the tower, the torque is large, which may cause the tracked vehicle body 10 to roll over. Therefore, the connecting slide cavity 12 can ensure that the gravity block 61 of the auxiliary propulsion device for the wind turbine assembly tower is inserted into it. Figure 3 , at this time, the safety effect can be effectively guaranteed.

[0043] In some embodiments, the gravity block 61 may be configured as follows: Figure 2 The structure shown. Figure 2The weight block 61 is provided with a first positioning hole 611, and the corresponding mounting frame 11 is provided with a second positioning hole 121 that communicates with the connecting slide cavity 12. After the two wind turbine assembly tower auxiliary propulsion devices are assembled, the weight block 61 of the latter wind turbine assembly tower auxiliary propulsion device is inserted into the connecting slide cavity 12 of the former wind turbine assembly tower auxiliary propulsion device. After the first positioning hole 611 and the second positioning hole 121 overlap, the two can be connected using a positioning pin to ensure the stability of the combination and thus ensure safety.

[0044] In some embodiments, the second telescopic structure 62 may be configured as follows: Figure 1 The structure shown. Figure 1 The second telescopic structure 62 is a self-locking hydraulic cylinder, which can ensure the stability of the gravity block 61.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tower auxiliary propulsion device for assembling a wind power discharge unit, characterized in that: include: a tracked vehicle body having a mounting frame; The moving direction of the crawler vehicle body is set as a first direction, and a horizontal direction perpendicular to the first direction is set as a second direction; There are two support arms, the two support arms are spaced apart along the second direction, one end of each support arm is connected to the mounting frame, and the other end extends upward; The mounting ring is located between the two support arms. The outer edge of the mounting ring is provided with a connecting shaft end that is rotatably connected to the protruding ends of the two support arms; the mounting ring is provided with a plurality of connecting holes in an annular shape for connecting the tower flange end.

2. The tower auxiliary propulsion device for wind power discharge unit assembly according to claim 1, characterized in that: The tower auxiliary propulsion device for assembling the wind power discharge unit also includes: a rotating shaft, rotatably disposed on the mounting frame along the second direction, with both ends of the rotating shaft extending out of the mounting frame to be fixedly connected to the two support arms respectively; There are two first telescopic structures, which are spaced apart along the second direction. The fixed end of each first telescopic structure is rotatably disposed on the mounting frame, and the telescopic end is rotatably connected to the corresponding support arm.

3. The tower auxiliary propulsion device for wind power discharge unit assembly according to claim 2, characterized in that: The first telescopic structure is a self-locking hydraulic cylinder.

4. The tower auxiliary propulsion device for wind power discharge unit assembly according to claim 2, characterized in that: The tower auxiliary propulsion device for assembling a wind power discharge unit further includes a balancing component, which includes: A gravity block is slidably disposed in the first direction in a limited sliding cavity provided in the mounting frame; There are at least two second telescopic structures, both of which are arranged along the first direction and spaced apart along the second direction. The fixed end of each second telescopic structure is fixedly connected to the mounting frame, and the other end is connected to the gravity block. The second telescopic structure is used to drive the gravity block to slide out of the limiting sliding cavity in the opposite direction when the mounting ring moves toward the outside of the crawler vehicle body.

5. The tower auxiliary propulsion device for wind power discharge unit assembly according to claim 4, characterized in that: A connecting sliding cavity is further provided in the mounting frame. The connecting sliding cavity is located at one end of the mounting frame away from the limiting sliding cavity and corresponds to the limiting sliding cavity.

6. The tower auxiliary propulsion device for wind power discharge unit assembly according to claim 5, characterized in that: The gravity block is provided with a first positioning hole, and the corresponding mounting frame is provided with a second positioning hole communicating with the connecting sliding cavity.

7. The tower auxiliary propulsion device for wind power discharge unit assembly according to claim 4, characterized in that: The second telescopic structure is a self-locking hydraulic cylinder.

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