CN106744312B - The hanging method of tower turnover device and tower - Google Patents

Abstract

The invention provides a tower turning device and a tower lifting method, wherein the tower turning device includes a base, a turning bracket and a hydraulic support device, one end of the turning bracket is pivotally connected to the base, And the turning bracket can be turned from an upright state to a horizontal state, and the turning bracket includes a supporting part and a side supporting part, and the upper surface of the supporting part is used to support the bottom of the tower in the axial direction , the side support portion is used to support the side wall of the tower in the radial direction. According to the tower turning device provided by the present invention, the supporting part of the supporting plate is supported on the bottom of the tower, and the side support part is supported on the side wall of the tower. After the tower turning device is docked with the bottom of the tower, it is Function, the tower can be hoisted from a horizontal state to an upright state, and then the tower can be hoisted and installed by a crane.

Description

Tower turning device and tower hoisting method

technical field

The invention relates to the technical field of wind power generation equipment, in particular to a tower turning device and a tower hoisting method for turning over a tower of a wind power generating set.

Background technique

The tower of the wind turbine is an important part of the generator set, usually in the shape of a cylinder, which has the characteristics of large diameter, long length, and heavy weight. When installing the generator set, the tower is in a flat state when it is transported to the work site. It is necessary to use a hoisting machine to turn the tower from horizontal to vertical (also called tower turning), and then install it in place.

At present, the traditional tower turning process is completed by the cooperation of two cranes, the crane connected to the upper flange is the main crane, and the crane connected to the lower flange is the auxiliary crane. First, the main and auxiliary cranes lift the tower horizontally at the same time. When a certain height is reached, the main crane continues to lift, and the auxiliary crane slowly descends until the tower is completely erected. The crane continues to hoist the tower.

There are following deficiencies in the above-mentioned tower tube turning over process:

(1) The main and auxiliary cranes and towers occupy a large area of the site;

(2) The installation of the upper and lower flange spreaders and the disassembly of the lower flange spreaders take a long time and require more labor;

(3) The cooperative operation of the main and auxiliary cranes requires high coordination accuracy between the two drivers. If the cooperation is not good, great safety risks will occur;

(4) In the hoisting of offshore projects, due to the limitations of some hoisting ships, this method cannot directly turn over the tower from the tower transport ship, but the tower must be reversed from the transport ship to the hoisting ship. Turning over the tower is not conducive to the hoisting of offshore units, reduces the efficiency of offshore operations, and increases the risk and cost of offshore operations.

Contents of the invention

Embodiments of the present invention provide a tower turning device and a tower hoisting method, which only need to be combined with a crane to turn the tower from a horizontal state to an upright state, thereby facilitating the subsequent lifting and installation of the tower.

According to one aspect of the present invention, a tower turning device is provided, including a base, a turning bracket and a hydraulic support device, one end of the turning bracket is pivotally connected to the base, and the turning bracket can automatically The upright state is flipped to a horizontal state, and the flip bracket includes a supporting part and a side supporting part, the upper surface of the supporting part is used to support the bottom of the tower in the axial direction, and the side supporting part is used for Support the side wall of the tower in the radial direction, the length of the side support part in the direction perpendicular to the supporting part is less than half of the height of the tower when it is upright, and one end of the hydraulic support device is hinged on On the base, the other end is supported on the lower surface of the supporting part of the pallet.

Optionally, the other end of the hydraulic support device is hinged to the hinge seat on the lower surface of the pallet support part.

Optionally, there are two hydraulic support devices, which are supported on both sides of the supporting part of the pallet.

Optionally, the side support portion is a concave arc surface or the side support portion is configured in a cylindrical shape.

Optionally, the turning bracket is integrally formed, or the side support part of the turning bracket is connected to the pallet supporting part in a detachable manner.

Optionally, it further includes: an auxiliary supporting part installed on the base for supporting on the bottom of the tower, and the auxiliary supporting part is away from the connecting position of the turning bracket.

Optionally, the auxiliary support component is a hydraulic support mechanism.

Optionally, the auxiliary support component is a support bracket, and the support bracket includes:

a guide rail installed upright on the base;

The slide plate is slidably fitted with the guide rail so as to be able to move vertically along the guide rail;

the supporting plate is fixedly connected to the slide plate and arranged horizontally;

The vertical traction device is used for pulling the slide to move along the guide rail.

Optionally, the vertical traction device is a winch.

Optionally, the base is mounted on the track through track wheels.

Optionally, a brake device is provided on the rail wheel.

Optionally, a horizontal pulling device is also included for pulling the base to move along the track.

The horizontal traction device is a winch.

The turning bracket is also provided with a front support rod for supporting on the base when the turning bracket is in a vertical state.

According to one aspect of the present invention, a method for hoisting a tower is provided, using the above-mentioned tower overturning device, including:

adjusting the turning bracket of the tower turning device to be in a vertical state;

Butt the bottom of the horizontally placed tower with the flip bracket, make the bottom of the tower dock with the supporting part of the flip bracket, and at the same time make the side of the tower close to the bottom and the flip bracket The side support part docking;

Use the crane to apply an upward lifting force to the top of the tower to lift the top of the tower;

While operating the crane to control the top of the tower to rise upwards, turn around the tower turning device;

controlling the hydraulic support device to provide support for the turning bracket;

The tower is erected on the base by the cooperation of the crane and the hydraulic support device.

According to the tower turning device provided by the present invention, the supporting part of the supporting plate is supported on the bottom of the tower, and the side support part is supported on the side wall of the tower. After the tower turning device is docked with the bottom of the tower, it is Function, the tower can be hoisted from a horizontal state to an upright state, and then the tower can be hoisted and installed by a crane.

According to the hoisting method of the tower tube provided by the present invention, the auxiliary crane in the traditional method is canceled, the installation and disassembly of the flange hanger under the tower tube is omitted, the on-site operation time is saved, and the number of workers is saved at the same time. It reduces the labor intensity of workers and is suitable for various applications, especially for narrow hoisting sites and shipboard operations.

The invention is suitable for installing wind power generating sets, and is especially suitable for narrow hoisting sites and operations on ships.

Description of drawings

The present invention can be better understood in the description of specific embodiments of the present invention below in conjunction with accompanying drawing, wherein:

Other characteristics, objects and advantages of the present invention will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals represent the same or similar features.

Fig. 1 is a schematic view showing the structure of a tower turning device in one embodiment of the present invention;

Fig. 2 is a schematic diagram showing the movement state of the tower and the tower turning device when the tower of the wind power generating set is turned over in one embodiment of the present invention;

Fig. 3 is a schematic diagram showing another motion state of the tower and the tower turning device when the tower of the wind power generating set is turned over in one embodiment of the present invention.

in:

10. Base; 11. Rail wheel; 12. Braking device;

20. Flip bracket; 21. Supporting part of pallet; 22. Side supporting part; 23. Hinge seat; 24. Front supporting rod;

30. Hydraulic support device;

40. Support bracket; 41. Guide rail; 42. Skateboard; 43. Support plate; 44. Vertical traction device;

50. Track; 51. Horizontal traction device;

80. Tower tube;

100. Tower turning device.

Detailed ways

Features and exemplary embodiments of various aspects of the invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention. In the drawings and the following description, well-known structures and techniques have not been shown in order to avoid unnecessarily obscuring the present invention. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted. Furthermore, the features, structures, or characteristics described hereinafter may be combined in any suitable manner in one or more embodiments. Moreover, the orientation words appearing in the following description are all directions shown in the figure, and do not limit the specific structure of the present invention.

In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be interpreted in a broad sense, for example, it can be a fixed connection or a flexible connection. Disassembled connection, or integral connection; it can be directly connected or indirectly connected through an intermediary. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the traditional tower turning process, two cranes are used to hang the two ends of the tower respectively. Among them, the top of the tower (the end at the top after installation) is connected to a crane through the upper flange, and the bottom end of the tower (the end at the bottom after installation) is connected to another crane through the lower flange. connected. The crane connected to the upper flange is the main crane, and the crane connected to the lower flange is the auxiliary crane. First, the main crane and the auxiliary crane lift the tower horizontally at the same time. When it reaches a certain height, the main crane continues to lift, and the auxiliary crane slowly descends until the tower is completely erected. When the tower is erected, remove the auxiliary crane spreader. Then, the main crane continues to hoist the tower.

Since two cranes are used to cooperate to complete this operation, there are high requirements for the proficiency and tacit understanding of the operators of the two cranes. In addition, after the tower is vertically hoisted, it takes a lot of labor and time to remove the lower flange. In addition, using two cranes at the same time has high requirements on site space, which cannot be applied in some places with insufficient space.

The inventor of the present application has found through careful research that the above-mentioned problems can be solved by removing the auxiliary crane. In the traditional tower turning process, the functions of the main crane and the auxiliary crane are different. The main crane lifts the top of the tower tube, which is the main lifting machine, and plays a leading role in the lifting, transfer, installation and other links of the tower tube. The function of the auxiliary crane is mainly to cooperate with the main crane to assist in the turning action during the erection of the tower. The auxiliary crane is not indispensable in the initial lifting process of the tower tube, and no auxiliary crane is required in the final installation process. Therefore, as long as the auxiliary function of the auxiliary crane in the tower overturning process can be filled, the auxiliary crane can be completely omitted and only one crane (main crane) can be used.

Based on the idea of the invention, the inventor analyzed and disassembled the auxiliary functions of the auxiliary crane, and found that the auxiliary functions of the auxiliary crane mainly include: the function of receiving, holding the bottom of the tower during turning over, and bearing part of the weight of the tower; Following function, as the main crane lifts the top of the tower upwards, it echoes the upward movement of the tower, enabling the bottom of the tower to move in the horizontal direction and rotate in the vertical plane.

That is to say, as long as the above-mentioned auxiliary functions of the auxiliary crane are realized, the auxiliary crane can be removed.

Therefore, the inventor of the present application has developed a tower turning device, which has the above-mentioned auxiliary function, can replace the role of the auxiliary crane, and cooperate with the main crane to complete the turning action of the tower.

Next, the inventive principle of the present invention will be briefly described in conjunction with FIGS. 1-3 .

The embodiment of the present invention provides a tower turning device 100, including a base 10, a turning bracket 20 and a hydraulic support device 30, one end of the turning bracket 20 is pivotally connected to the base 10, and the turning bracket 20 can turn over from an upright state To the horizontal state, the flip bracket 20 includes a supporting plate supporting portion 21 and a side supporting portion 22. The upper surface of the supporting plate supporting portion 21 is used to support the bottom of the tower tube 80 in the axial direction, and the side supporting portion 22 is used to support the bottom of the tower tube 80 in the radial direction. The side wall of the tower tube 80 is supported, the length of the side support part 22 in the direction perpendicular to the pallet support part 21 is less than half of the height of the tower tube 80 when standing upright, one end of the hydraulic support device 30 is hinged on the base 10, and the other end It is supported on the lower surface of the pallet support portion 21 .

Since the length of the side support portion 22 in the direction perpendicular to the supporting plate support portion 21 is less than half of the height of the tower tube 80, it is convenient for the tower tube turning device 100 to dock with the bottom of the tower tube 80, and the tower tube 80 can be ensured during the docking process. In a horizontal state, the tower tube 80 can be turned over from the tower tube bracket to the tower tube turning device 100 more conveniently. When the top of the tower tube 80 is hoisted by a crane, the bottom of the tower tube 80 is supported on the tower tube turning device 100 Turn over the bracket 20, at this time the tower tube 80 can be separated from the tower tube support as a whole, and gradually turn over from a horizontal state to an upright state under the drive of the crane.

According to the tower turning device provided in the embodiment of the present invention, the supporting plate support part 21 is supported on the bottom of the tower tube 80, the side support part 22 is supported on the side wall of the tower tube 80, and the tower tube turning device 100 and the bottom of the tower tube 80 After docking, the tower tube 80 can be hoisted from a horizontal state to an upright state by means of a crane, and then the tower tube can be hoisted and installed by the crane.

Compared with the prior art, a main crane and an auxiliary crane are required to complete the hoisting of the tower tube 80. The tower tube turning device 100 provided by the embodiment of the present invention can complete the hoisting of the tower tube with only one crane, and the fan hoisting area is small. The advantage of the tower turning device 100 provided by the embodiment of the present invention is more obvious.

Compared with the hoisting method using two cranes in the prior art, the tower turning device 100 provided by the embodiment of the present invention only needs one crane, thereby reducing the number of labor and man-hours used for tower hoisting, improving labor efficiency, and reducing The labor intensity of the operators; while only using one crane to operate, it is easy to control the risk and reduce the accident rate;

The present invention can also be used in the hoisting of offshore projects to improve on-site efficiency, improve the utilization rate of the offshore operation window period, shorten the construction period, reduce the cost of offshore operations, and reduce the labor intensity of operators.

When using the tower turning device 100 provided by the embodiment of the present invention to hoist the tower 80, it is realized through the following steps, specifically:

Adjust the overturning bracket 20 of the tower overturning device 100 to be in a vertical state, so as to be docked with the horizontally placed tower tube 80;

The bottom of the horizontally placed tower tube 80 is docked with the flip bracket 20, so that the bottom of the tower tube 80 is docked with the pallet support part 21 of the flip bracket 20, and the side near the bottom of the tower tube 80 is connected with the flip bracket at the same time. The side support portion 22 of the tower tube 20 is docked, thereby realizing the alignment connection between the tower tube 80 and the tilting bracket 20 of the tower tube turning device 100;

Utilize the crane to apply an upward lifting force to the top of the tower tube 80, and lift the top of the tower tube 80;

While operating the crane to control the top of the tower 80 to rise upwards, the tower 80 turns around the tower turning device 100;

Controlling the hydraulic support device 30 to provide support for the turning bracket 20;

The tower 80 is erected on the base 10 by the cooperation of the crane and the hydraulic support device 30 .

During the process of hoisting the top of the tower 80 by a crane, the tower 80 will be controlled to rotate around the pivotal connection position between the flip bracket 20 and the base 10, and under the action of the crane, the tower 80 will move from the horizontal state Gradually flip to an upright state and sit on the base 10; in this process, the hydraulic support device 30 provides support for the lower surface of the pallet support part 21 of the flip bracket 20, so as to cooperate with the crane when lifting the tower. 1. During the overturning process, the control tower 80 tends to the upright state smoothly; during this overturning process, the hydraulic support device 30 is always in the supporting state.

In an embodiment of the tower turning device 100 of the present invention, the other end of the hydraulic support device 30 is hinged to the hinge seat 23 on the lower surface of the pallet support part 21; specifically, the hydraulic support device 30 drives the cylinder rod through a hydraulic cylinder To do telescopic movement, the lower surface of the pallet support part 21 can be provided with a stable and continuous support force in a telescopic manner; when the hinge seat 23 is hinged to connect with the cylinder rod, the hydraulic support device 30 can be connected to the pallet support part. 21 is more stable, and the hydraulic support device 30 can deflect flexibly during the overturning process of the tower tube 80 .

In an embodiment of the tower turning device 100 of the present invention, there are two hydraulic support devices 30 , which are supported on both sides of the pallet support part 21 . Two hydraulic support devices 30 are used to provide support to the lower surface of the pallet support part 21 on both sides of the pallet support part 21 at the same time, so that the tower tube 30 can be turned over. The support is more stable, reducing the shaking of the tower on the supporting part 21 of the pallet.

In an embodiment of the tower turning device 100 of the present invention, the side support part 22 is a concave arc surface or is configured as a cylinder. When the side support part 22 adopts an arc surface, the arc surface is adapted to the side of the bottom of the tower tube 80, so that the arc surface at the bottom of the tower tube 80 can be supported by the side support part 22 to form a surface-to-surface fit, thereby The side support part 22 can provide stable support for the tower tube 80 to prevent the tower tube 80 from shaking; when the side support part 22 is configured as a cylindrical structure, the diameter of the cylindrical structure is adapted to the diameter of the bottom of the tower tube 80. Generally, The diameter of the cylindrical structure is slightly larger than the diameter of the tower tube 80, so that the tower tube 80 is easier to be installed in the traffic structure. When the tower tube is hoisted, the side support part 22 of the traffic structure can better support and prevent The shaking effect of the tower tube 80.

In an embodiment of the tower turning device 100 of the present invention, the turning bracket 20 is integrally formed, that is, the side support part 22 and the pallet supporting part 21 are formed together on a plate or block material, so that the turning bracket 20 can play the role of bottom and side support at the same time, and those skilled in the art can also understand that a part with a concave arc surface (shaped as a side support part 22) and a flat part (formed as a supporting part) The plate supporting part 21) is welded and formed, which should belong to the concept of integral forming described in the embodiment of the present invention.

Alternatively, in another embodiment of the tower turning device 100 of the present invention, the side support part 22 of the turning bracket 20 is connected to the pallet support part 21 in a detachable manner, and the detachable connection method includes but is not limited to Bolt and nut connection, through buckle connection, through sliding fit, etc.; based on the understanding of those skilled in the art, the side support part 22 is formed into a component with a concave arc surface, or formed into a square plate with a round hole It should also belong to the inventor's idea to connect the supporting part 21 to the pallet supporting part 21 by means of overlapping or bolting.

In an embodiment of the tower turning device 100 of the present invention, it further includes: an auxiliary supporting part installed on the base 10 for supporting on the bottom of the tower 80 , and the auxiliary supporting part is away from the connecting position of the turning bracket 20 .

In an embodiment of the tower turning device 100 of the present invention, the auxiliary support component is a hydraulic support mechanism, such as a telescopic hydraulic cylinder structure.

In an embodiment of the tower turning device 100 of the present invention, the auxiliary support component is a support bracket 40, and the support bracket 40 includes:

The guide rail 41 is installed upright on the base 10;

The slide plate 42 is slidably matched with the guide rail 41 so as to be able to move vertically along the guide rail 41;

The supporting plate 43 is fixedly connected to the slide plate 42 and arranged horizontally;

The vertical pulling device 44 is used for pulling the sliding plate 42 to move along the guide rail 41 .

In this embodiment, the vertical traction device 44 is a hoist, or other devices that can control the slide plate 42 to slide along the guide rail 41 .

When the tower tube 80 turns over 45° from the horizontal state, the center of the tower tube 80 gradually moves to the side of the turning bracket 20. At this time, the turning bracket 20 itself will bear a large pressure. The base 10 on one side is provided with a support bracket 40, which can support the bottom of the tower 80 (or the supporting part 21), thereby sharing a part of the gravity of the tower 80, ensuring that the force on the tower 80 is even, and avoiding the tower 80 overturned and lost balance.

The tower turning device 100 provided in the above embodiments can be fixed on the ground or on the frame of the trailer, or can be moved in the horizontal direction by sliding or rolling connection. Based on this , the embodiment of the present invention provides an implementation mode in which the track wheel 11 is used to roll and connect on the track 50, specifically:

The base 10 is installed on the track 50 through the track wheels 11, and through the guiding effect of the track 50, the base 10 can move linearly along the track 50, so as to facilitate the control of the hoisting position; for example, after the tower 80 is turned over by a crane , the hoisting position is controlled by the movement of the base 10 on the track 50 .

A brake device 12 is provided on the track wheel 11. Since the track wheel 11 is connected by rolling on the track 50, it is not stable. Therefore, when the base 10 needs to be fixed so that the tower tube 80 can be turned over or hoisted, The brake device 12 can be operated to lock the track wheels 11 to prevent the base 10 from moving along the track 50 .

The tower turning device 100 provided in the present invention further includes a horizontal traction device 51 for pulling the base 10 to move along the track 50, and the horizontal traction device 51 is a winch.

In an embodiment of the tower turning device 100 of the present invention, the turning bracket 20 is also provided with a front support rod 24, which is used to support the base 10 when the turning bracket 20 is in a vertical state, so as to avoid turning the bracket. 20 is turned over excessively, so that the turning bracket 20 can be in an upright state, so as to be docked with the bottom of the tower 80 .

The present invention may be embodied in other specific forms without departing from its spirit and essential characteristics. Therefore, the present embodiments are to be considered in all respects as illustrative rather than restrictive, the scope of the present invention is defined by the appended claims rather than the above description, and, within the meaning and equivalents of the claims, All changes in scope are thereby embraced within the scope of the invention. Moreover, different technical features in different embodiments can be combined to achieve beneficial effects. Those skilled in the art should be able to understand and implement other modified embodiments of the disclosed embodiments on the basis of studying the drawings, specification and claims.

Claims (14)

1. tower turnover device (100), including pedestal (10), turning support (20) and hydraulic support device (30), feature exists In,

One end of the turning support (20) is pivotally connected with the pedestal (10), and the turning support (20) can be from directly Vertical state is turned to horizontality, and the turning support (20) includes pallet support portion (21) and collateral support part (22), the support For being supported in axial direction to tower (80) bottom, the collateral support part (22) is used in diameter for the upper surface of plate support portion (21) It is supported to the side wall to tower (80), the collateral support part (22) is on perpendicular to pallet support portion (21) direction The half of height when length is less than the tower (80) uprightly；

One end of the hydraulic support device (30) is hinged on the pedestal (10), and the other end is supported on the pallet support portion (21) on lower surface；

The tower turnover device (100) further includes moveable Auxiliary support component along the vertical direction, the Auxiliary support portion Part is mounted on the pedestal (10), is used to support the bottom in the tower (80), and the Auxiliary support component is separate The link position of the turning support (20).

2. tower turnover device (100) as described in claim 1, which is characterized in that the hydraulic support device (30) it is another The free bearing (23) of one end and the lower surface of the pallet support portion (21) is hinged.

3. tower turnover device (100) as claimed in claim 2, which is characterized in that the hydraulic support device (30) is equipped with Two, it is supported on the two sides of the pallet support portion (21).

4. tower turnover device (100) as described in claim 1, which is characterized in that the collateral support part (22) is indent Arc surface or the collateral support part (22) are configured to tubular.

5. tower turnover device (100) as described in claim 1, which is characterized in that the turning support (20) is integrated into Using removable between type structure or the collateral support part (22) and the pallet support portion (21) of the turning support (20) The mode unloaded connects.

6. tower turnover device (100) as described in claim 1, which is characterized in that the Auxiliary support component is hydraulic branch Support mechanism.

7. tower turnover device (100) as described in claim 1, which is characterized in that the Auxiliary support component is supporting bracket Frame (40), the Support bracket (40) include：

Guide rail (41) is uprightly mounted on the pedestal (10)；

Slide plate (42) is slidably matched with the guide rail (41), can move in the vertical direction along guide rail (41)；

Supporting plate (43) is fixedly connected on the slide plate (42), and in horizontally disposed；

Vertical traction device (44) is moved for drawing the slide plate (42) along the guide rail (41).

8. tower turnover device (100) as claimed in claim 7, which is characterized in that the vertical traction device (44) is volume Raise machine.

9. the tower turnover device (100) as described in one of claim 1-5, which is characterized in that the pedestal (10) passes through rail Road wheel (11) is mounted on track (50).

10. tower turnover device (100) as claimed in claim 9, which is characterized in that be equipped with and stop on the rail wheel (11) Vehicle device (12).

11. tower turnover device (100) as claimed in claim 9, which is characterized in that it further include horizontally tracting device (51), It is moved for drawing the pedestal (10) along the track (50).

12. tower turnover device (100) as claimed in claim 11, which is characterized in that the horizontally tracting device (51) is Hoist engine.

13. tower turnover device (100) as described in claim 1, which is characterized in that be additionally provided on the turning support (20) Front support rod (24), for being supported on the pedestal (10) when the turning support (20) is in a vertical state.

14. the hanging method of tower, using tower turnover device (100) described in one of claim 1-13, including：

Adjust the turning support (20) state in a vertical shape of the tower turnover device (100)；

To be docked in the bottom of horizontal positioned tower (80) with the turning support (20), make the bottom of tower (80) with it is described The pallet support portion of turning support (20) is docked, while making the side and the turning support (20) on tower (80) close to bottom Collateral support part docking；

Upward lifting force will be applied to the top of tower (80) using crane, will be sling at the top of tower (80)；

While operating the upward raising in top of overhead crane control tower (80), overturn around the tower turnover device (100)；

It controls the hydraulic support device (30) and provides support to the turning support (20)；

With crane and hydraulic support device (30), tower (80) is stood on the pedestal (10).