CN115140642B

CN115140642B - Lifting appliance and lifting system

Info

Publication number: CN115140642B
Application number: CN202110348822.9A
Authority: CN
Inventors: 方晶
Original assignee: Jiangsu Goldwind Science and Technology Co Ltd
Current assignee: Jiangsu Goldwind Science and Technology Co Ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2024-04-19
Anticipated expiration: 2041-03-31
Also published as: CN115140642A

Abstract

The utility model provides a hoist and hoisting system, hoist can hoist include support and lifting unit, the support include with be used for lifting by crane hoist suspender complex lifting shaft, lifting unit includes the driving gear, the toothed belt, supporting wheel and drive arrangement, driving gear connects on lifting by crane the epaxially, the both ends of toothed belt are used for connecting respectively at the both ends of waiting to hoist the piece, the first side of toothed belt can with the driving gear meshing, the second side of toothed belt opposite with first side supports on the supporting wheel, drive arrangement can drive the driving gear rotation, and then drive the toothed belt and remove, can drive the toothed belt through the driving gear and remove, so as to drive waiting to hoist the piece and carry out attitude adjustment in the air, thereby can realize waiting to hoist the single hook hoist of piece, can reduce the quantity of the loop wheel of hoist in-process, and then reduce the hoist cost.

Description

Lifting appliance and lifting system

Technical Field

The disclosure belongs to the technical field of wind power generation, and particularly relates to a lifting appliance and a lifting system for lifting a tower.

Background

The tower of the wind generating set is usually formed by sequentially and fixedly connecting a plurality of tower barrel sections along the height direction, and the hoisting efficiency of the tower directly influences the final installation time of the wind generating set.

Currently, the hoisting of a tower section usually requires a plurality of cranes to adjust the attitude of the tower section in the air, for example, one crane is connected to the top end flange of the tower section, the other crane is connected to the bottom end flange of the tower section, and the longitudinal heights of the two ends of the tower section are adjusted by respectively controlling the two cranes so as to adjust the tower section in a horizontal state to a vertical state, so that the plurality of cranes are used to participate in the hoisting of the tower section, and the hoisting cost of the tower is high.

Therefore, how to provide a lifting appliance capable of reducing the lifting cost of the tower is a technical problem that needs to be solved by those skilled in the art.

Disclosure of Invention

The main object of the present disclosure is to provide a lifting appliance and a lifting system, which can reduce the lifting cost of a tower.

Aiming at the aim of the invention, the present disclosure provides the following technical scheme:

In one aspect of the disclosure, a lifting appliance is provided, the lifting appliance comprises a bracket and a lifting unit, the bracket comprises a lifting shaft matched with a lifting belt for lifting the lifting appliance, the lifting unit comprises a driving gear, a toothed belt, a supporting wheel and a driving device, the driving gear is connected to the lifting shaft, two ends of the toothed belt are respectively used for being connected to two ends of a piece to be lifted, a first side surface of the toothed belt can be meshed with the driving gear, a second side surface of the toothed belt opposite to the first side surface is supported on the supporting wheel, and the driving device can drive the driving gear to rotate so as to drive the toothed belt to move.

So set up, driving gear and toothed belt meshing can be through driving gear drive toothed belt removal to drive wait to hoist and mount the piece and carry out attitude adjustment in the sky, thereby can realize waiting the single hook hoist and mount of hoist and mount piece, can reduce the quantity of loop wheel machine in the hoist and mount process, and then reduce the hoist and mount cost.

According to an exemplary embodiment of the disclosure, the lifting unit includes at least two supporting wheels, the at least two supporting wheels are arranged at intervals in the extending direction of the toothed belt, the at least two supporting wheels include a first supporting wheel and a second supporting wheel, and the first supporting wheel and the second supporting wheel are connected with the bracket through a first wheel pivot shaft and a second wheel pivot shaft respectively. The toothed belt is supported by at least two supporting wheels, so that the contact area between the toothed belt and the supporting wheels is increased, and the toothed belt can run more stably.

Further, the hanger further comprises a telescopic member, and two ends of the telescopic member are rotatably connected to the first wheel pivot shaft and the second wheel pivot shaft respectively, so that the distance between the first supporting wheel and the second supporting wheel can be adjusted through the extension or shortening of the telescopic member. By means of the arrangement, the telescopic piece is connected between the first wheel pivot shaft and the second wheel pivot shaft, the distance between the two supporting wheels can be adjusted, so that the lifting appliance can adapt to lifting pieces to be lifted in different sizes, and the universality of the lifting appliance is improved.

According to another exemplary embodiment of the present disclosure, the support further includes a first hanger plate and a second hanger plate rotatably connected to the lifting shaft, the first support wheel and the second support wheel are respectively disposed on the first hanger plate and the second hanger plate, and the first hanger plate and the second hanger plate are disposed at intervals along an axial direction of the lifting shaft. So set up, connect two backing wheels on lifting by crane the epaxial through first hanger plate and second hanger plate respectively, simple structure, low in manufacturing cost.

Specifically, the lifting appliance further comprises a telescopic piece, the first lifting plate and the second lifting plate are arranged in pairs and are symmetrically arranged on two sides of the supporting wheel respectively, and the telescopic piece is rotatably connected between the adjacent first lifting plate and second lifting plate so as to adjust the distance between the two supporting wheels through the extension or shortening of the telescopic piece. So set up, connect the extensible member between first hanger plate and second hanger plate, be convenient for adjust the distance between two supporting wheels to make hoist can adapt to not unidimensional wait to hoist the piece, improved the commonality of hoist.

Further, the supporting wheel is a gear, and the second side surface of the toothed belt can be meshed with the supporting wheel. By means of the arrangement, the supporting wheels are meshed with the toothed belt, and reliability of the lifting appliance is further improved.

Specifically, the lifting appliance further comprises a controller, at least one supporting wheel is fixedly provided with a displacement sensor, and the controller can control the expansion piece to extend or shorten according to detection data of the displacement sensor. So set up, through the cooperation of displacement sensor and controller, can reduce the artifical participation of waiting to hoist and mount the piece in hoist and mount in-process to can reduce hoist and mount cost.

According to another exemplary embodiment of the present disclosure, the lifting appliance further comprises lifting wheels rotatably arranged on the lifting shaft, and the lifting units are arranged in pairs and symmetrically arranged on two axial sides of the lifting wheels. So set up, in the hoist use, when the driving gear rotates with the drive toothed belt removal, the lifting wheel can not rotate along with the driving gear, has reduced the risk that lifting wheel and suspender break away from.

In another aspect of the present disclosure, a lifting system is provided, comprising a lifting appliance as described above, adapted to hoist a tower section.

Further, the hoisting system further comprises a clamping disc used for connecting the flange of the tower section, the top of the clamping disc is connected with a hanging rod and a turning-over adjusting piece, two ends of the hanging rod are respectively hinged to the middle of the clamping disc and the toothed belt, two ends of the turning-over adjusting piece are respectively hinged to the edge of the clamping disc and the hanging rod, and the turning-over adjusting piece is of a telescopic structure so as to adjust the inclination angle of the hanging rod relative to the tower section through the telescopic adjustment of the turning-over adjusting piece. The lifting device is arranged in such a way, the included angle between the lifting rod and the turning adjusting piece can be adjusted by extending or shortening the turning adjusting piece, so that the posture of the piece to be lifted can be adjusted, and the gravity center of the piece to be lifted can be adjusted.

In another exemplary embodiment of the present disclosure, the hoisting system further comprises a tail structure disposed on a peripheral wall near the bottom end of the tower section and connected to the toothed belt. By arranging the tail sliding structure on the peripheral wall close to the bottom end of the tower section, the tail sliding structure can be prevented from being contacted with the connecting flange at the bottom end of the tower section, and therefore the connecting flange can be prevented from deforming in the hoisting process.

The lifting appliance and the lifting system provided by the disclosure have the following beneficial effects: the supporting gear is meshed with the toothed belt, and the toothed belt can be driven to move through the supporting gear so as to drive the piece to be hoisted to carry out attitude adjustment in the air, so that single-hook hoisting of the piece to be hoisted can be realized, the number of cranes in the hoisting process can be reduced, and further the hoisting cost is reduced.

Drawings

The foregoing and/or other objects and advantages of the disclosure will become more apparent from the following description of embodiments taken in conjunction with the accompanying drawings in which:

Fig. 1 is a front view of a spreader provided in an exemplary embodiment of the present disclosure.

Fig. 2 is a side view of the spreader of fig. 1.

Fig. 3 is a front view of a hoist system provided in another exemplary embodiment of the present disclosure.

Fig. 4 is a side view of the hoist system of fig. 3.

Reference numerals illustrate:

101. a drive gear; 102. A toothed belt;

103. a support wheel; 104. A first hanger plate;

103-1, a first supporting wheel; 103-2, a second support wheel;

105. A second hanger plate; 106. A displacement sensor;

107. a telescoping member; 108. A lifting wheel;

109. A hoisting shaft; 110. A first wheel pivot shaft;

111. a second wheel pivot shaft; 200. A tower section;

301. a boom; 302. A turn-over adjusting piece;

303. a clamping plate; 401. A crane hook;

402. A hanging belt.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the embodiments of the present disclosure should not be construed as limited to the embodiments set forth herein. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.

Fig. 1 is a front view of a spreader provided in an exemplary embodiment of the present disclosure. Fig. 2 is a side view of the spreader of fig. 1. Referring to fig. 1 and 2, in one aspect of the present disclosure, a lifting appliance is provided, which may include a bracket and a lifting unit, the bracket may include a lifting shaft 109 engaged with a lifting belt 402 for lifting the lifting appliance, the lifting unit may include a driving gear 101, a toothed belt 102, a supporting wheel 103, and a driving device, the driving gear 101 may be connected to the lifting shaft 109, two ends of the toothed belt 102 may be respectively connected to two ends of a piece to be lifted, a first side of the toothed belt 102 may be engaged with the driving gear 101, a second side of the toothed belt 102 opposite to the first side may be supported on the supporting wheel 103, and the driving device may be capable of driving the driving gear 101 to rotate, thereby driving the toothed belt 102 to move.

The driving gear 101 is meshed with the toothed belt 102, and the toothed belt 102 can be driven to move through the driving gear 101 so as to drive the piece to be hoisted to carry out attitude adjustment in the air, so that single-hook hoisting of the piece to be hoisted can be realized, the number of cranes in the hoisting process can be reduced, and further the hoisting cost is reduced.

The number of the lifting units can be selected according to the needs, for example, but not limited to, one lifting unit or a plurality of lifting units.

With continued reference to fig. 1 and 2, the lifting appliance may further include a lifting wheel 108, the lifting wheel 108 may be rotatably disposed on the lifting shaft 109, the lifting units may be disposed in pairs and symmetrically disposed at both axial sides of the lifting wheel 108, and the driving gear 101 may be fixed on the lifting shaft 109. The lifting wheel 108 may be engaged with the hanging strip 402 for lifting the hanger to be able to lift the hanger, and the outer peripheral wall of the lifting wheel 108 may be provided with a groove to engage with the hanging strip 402, so that the hanging strip 402 may be prevented from falling off from the lifting wheel 108, thereby improving the stability of the connection of the hanger with the hanging strip 402.

The lifting units can be symmetrically arranged on two axial sides of the lifting wheel 108, so that the lifting wheel 108 can keep the stress balance, and the lifting device is prevented from overturning in the lifting process, so that the safety of the lifting device is improved. As shown in the figure, in this embodiment, a pair of lifting units symmetrically disposed are taken as an example for the lifting appliance, and each lifting unit may have the same structure.

The lifting unit may include a driving gear 101 fixed to the lifting shaft 109 and a supporting wheel 103 positioned below the driving gear 101, the toothed belt 102 may be positioned between the driving gear 101 and the supporting wheel 103, and a first side of the toothed belt 102 may be engaged with the driving gear 101, a second side of the toothed belt 102 may be disposed opposite to the first side, and a second side of the toothed belt 102 may be supported on the supporting wheel 103.

As an example, in order to increase the contact area between the toothed belt 102 and the driving gear 101, the toothed belt 102 is made to run more stably. Specifically, the lifting unit may include at least two supporting wheels 103, the at least two supporting wheels 103 may be spaced apart in the extending direction of the toothed belt 102, and the at least two supporting wheels 103 may include a first supporting wheel 103-1 and a second supporting wheel 103-2.

Referring to the drawings, the first support wheel 103-1 and the second support wheel 103-2 may be adjacent to each other, the driving gear 101 may be located above the first support wheel 103-1 and the second support wheel 103-2, and a lower surface of the driving gear 101 may be not higher than a plane in which top surfaces of the two support wheels 103 are located, so that the driving gear 101 can be stably engaged with the toothed belt 102.

In this embodiment, the driving gear 101 is meshed with the toothed belt 102 through teeth, so that the toothed belt 102 can move relative to the hanging belt 402 or the crane hook 401 in the lifting process, and therefore, the posture of a piece to be lifted can be adjusted in the air, and the lifting device is simple in structure, safe and reliable.

It will be appreciated that the support wheel 103 may also be one, and that the toothed belt 102 is arranged between the support wheel 103 and the driving gear 101.

The first support wheel 103-1 and the second support wheel 103-2 may be connected to the bracket through a first and a second slave pivot shaft 110 and 111, respectively. The spreader may further include a telescopic member 107, both ends of the telescopic member 107 being rotatably coupled to the first and second pivot shafts 110 and 111, respectively, to adjust the distance between the first and second support wheels 103-1 and 103-2 by extension or contraction of the telescopic member 107.

The first supporting wheel 103-1 and the second supporting wheel 103-2 are arranged at intervals in the advancing direction of the toothed belt 102, on both sides of the driving gear 101, respectively, and a second side surface of the toothed belt 102 opposite to the first side surface is supported on the supporting wheel 103. Specifically, each toothed belt 102 may correspond to one driving gear 101, and the driving gears 101 may be located above or below the first supporting wheel 103-1 and the second supporting wheel 103-2. The first supporting wheel 103-1 and the second supporting wheel 103-2 may be supported on the second side of the toothed belt 102, and the driving gear 101 may be in contact with the first side of the toothed belt 102, so that the stability of the connection between the toothed belt 102, the driving gear 101, and the supporting wheel 103 may be improved by the supporting wheel 103 and the driving gear 101 acting on different sides of the toothed belt 102, respectively. In addition, by adjusting the length of the telescopic member 107, the distance between the first support wheel 103-1 and the second support wheel 103-2 can be adjusted to improve the versatility of the spreader.

The driving device can drive the driving gear 101 to rotate, the driving gear 101 and the toothed belt 102 can be meshed, and under the condition that the driving gear 101 and the toothed belt 102 are meshed with each other, the driving gear 101 can drive the toothed belt 102 to move, so that the driving gear 101 is driven to rotate through the driving device, and then the toothed belt 102 is driven to move, and as the toothed belt 102 can be connected with a piece to be hoisted (for example, a tower drum), the movement of the toothed belt 102 can drive the piece to be hoisted to carry out posture adjustment in the air.

As an example, a spreader according to an embodiment of the present disclosure may further comprise a lifting wheel 108, the lifting wheel 108 being rotatably arranged on the lifting shaft 109, e.g. may be rotatably mounted on the lifting shaft 10 by means of bearings. The driving gear 101 is fixedly arranged on the lifting shaft 109 and located on both sides of the lifting wheel 108. The driving device can drive the lifting shaft 109 to rotate, so as to drive the driving gear 101 to rotate. Hereinafter, exemplary embodiments according to the present disclosure will be described in more detail with reference to the accompanying drawings.

With continued reference to fig. 1 and 2, the lifting appliance may include a lifting wheel 108 and a driving gear 101 coaxially disposed with the lifting wheel 108, where the driving gears 101 may be two and symmetrically disposed on two sides of the lifting wheel 108, so that the lifting appliance may be balanced during lifting of the lifting appliance, and avoid overturning, thereby improving safety of the lifting appliance. It will be appreciated that the lifting wheel 108 and the driving gear 101 may also be arranged non-coaxially.

As shown in fig. 1, the driving gear 101 may be located above the toothed belt 102, and an upper surface of the toothed belt 102 may be in contact with a lower surface of the driving gear 101 under the supporting action of the supporting wheel 103, for example, but not limited to, the driving gear 101 may be pressed against the upper surface of the toothed belt 102, and the driving gear 101 may be engaged with the toothed belt 102 to move the toothed belt 102 by the rotation of the driving gear 101.

The piece to be hoisted may have a columnar structure (e.g., a tower drum), two ends of the toothed belt 102 may be respectively connected to two ends of the piece to be hoisted, and during the movement of the toothed belt 102, the longitudinal heights of the two ends of the piece to be hoisted may be relatively moved so as to change the attitude of the piece to be hoisted in the air, for example, but not limited to, the piece to be hoisted may be the tower drum segment 200. In the initial lifting state, the tower section 200 can be lifted in a horizontal state, and the toothed belt 102 can enable the tower section 200 to be in a vertical state after moving, so that the installation of the tower section 200 is facilitated.

The support wheel 103 may be a pivoting wheel and in case the support wheel 103 may be a gear, the second side of the toothed belt 102 may be in engagement with the support wheel 103, in case the toothed belt 102 is in engagement with the support wheel 103, the toothed belt 102 may drive the support wheel 103 in rotation. The driving gear 101, the supporting wheel 103 and the toothed belt 102 are respectively meshed through teeth, so that the safety of the lifting appliance can be improved. Specifically, on one hand, the toothed belt 102 is prevented from slipping in the hoisting process, so that the safety of the lifting appliance is improved. On the other hand, the toothed belt 102 can be prevented from moving reversely, and the toothed engagement can enable the movement of the toothed belt 102 to be more accurate, so that the precision of the lifting appliance is improved.

Further, the supporting wheel 103 may be a fixed wheel or a supporting bracket, where the supporting wheel 103 is a fixed wheel, the outer peripheral surface of the supporting wheel 103 may be a smooth surface, and the second side surface of the toothed belt 102 may be a smooth surface, so that the toothed belt 102 may slide relatively on the supporting wheel 103.

Referring to fig. 2, in the present embodiment, the driving gear 101 may be fixed to a lifting shaft 109, and the lifting wheel 108 may be rotatably provided on the lifting shaft 109.

The bracket may include a first hanger plate 104 and a second hanger plate 105, the first hanger plate 104 and the second hanger plate 105 may be rotatably disposed on the hanger shaft 109, and the first support wheel 103-1 and the second support wheel 103-2 may be connected to the first hanger plate 104 and the second hanger plate 105 through a first pivot shaft 110 and a second pivot shaft 111, respectively, and the first hanger plate 104 and the second hanger plate 105 may be disposed at intervals along an axial direction of the hanger shaft 109 to avoid interference. As an example, upper ends of the first hanger plate 104 and the second hanger plate 105 may be connected to the hanger shaft 109, and the first and second pivot shafts 110 and 111 may be connected to lower ends of the first hanger plate 104 and the second hanger plate 105, respectively.

As shown in fig. 1, the first hanger plate 104 may extend obliquely from the lifting shaft 109 in a lower left direction, the second hanger plate 105 may extend obliquely from the lifting shaft 109 in a lower right direction, and the first and second pivot axes 110 and 111 may be connected to the first and second hanger plates 104 and 105, respectively, and located below the lifting shaft 109.

In this embodiment, the lifting shaft 109 may be a gear shaft, the driving gear 101 may be a gear on the gear shaft, and the lifting wheel 108 is rotatably disposed on the lifting shaft 109.

In order to improve versatility of the spreader to be able to be used for hoisting pieces of different sizes, the spreader may include a telescopic member 107, and the telescopic member 107 may be located between the first support wheel 103-1 and the second support wheel 103-2 to adjust a distance between the first support wheel 103-1 and the second support wheel 103-2 by extension and shortening of the telescopic member 107. As an example, both ends of the expansion member 107 are hinged to the first hanger plate 104 and the second hanger plate 105, respectively.

In the following, taking the tower section 200 as an example, when the tower section 200 is in a horizontal placement state, one end of the toothed belt 102 may be connected to the center position of the top flange of the tower section 200, and the other end of the toothed belt 102 may be connected to the outer peripheral wall of the bottom of the tower section 200. When the driving gear 101 rotates and drives the toothed belt 102 to move, the tower section 200 is inclined with respect to the horizontal. Accordingly, by the rotation of the driving gear 101, the length of the toothed belt 102 on both sides of the supporting wheel 103 is adjusted, thereby adjusting the heights of both ends of the toothed belt 102. When the length of the toothed belt between the support wheel 103 and the top end flange of the tower section 200 becomes smaller, the top end of the tower section 200 is gradually lifted up, so that the tower section 200 can be shifted from a horizontal position to a vertical position. In the vertical position of the tower section 200, the lateral distance between the two ends of the toothed belt 102 may preferably be greater than the radial length of the tower section 200, preventing the toothed belt 102 from interfering with the outer wall of the tower section 200. The transverse distance between the two ends of the toothed belt 102 can be adjusted by adjusting the length of the telescopic piece 107, so that tower sections 200 with different sizes can be adapted, and interference between the toothed belt 102 and the peripheral wall of the tower section 200 can be avoided.

To further improve the stability of the spreader, the first hanger plate 104 and the second hanger plate 105 may be provided in pairs, respectively, and a pair of the first hanger plates 104 may be provided at both sides of the first supporting wheel 103-1 supported thereby and a pair of the second hanger plates 105 may be provided at both sides of the second supporting wheel 103-2 supported thereby, so that the supporting wheel 103 may be stably coupled to the lifting shaft 109.

In this embodiment, the pair of second hanger plates 105 may be located on the outer sides of the pair of first hanger plates 104 along the axial direction of the lifting shaft 109, and the first hanger plates 104 and the second hanger plates 105 are spaced apart, so as to avoid interference between the first hanger plates 104 and the second hanger plates 105 when the two supporting wheels 103 approach or separate from each other. The two ends of the telescopic member 107 may be hinged between the adjacent first hanger plate 104 and second hanger plate 105, respectively.

Optionally, the telescopic member 107 may be further connected to the first slave pivot shaft 110 and the second slave pivot shaft 111, which are not shown in the drawings, and by connecting the telescopic member 107 to the first slave pivot shaft 110 and the second slave pivot shaft 111, interference or seizing of other components caused by rotation of the telescopic member 107 during rotation of the support wheel 103 may be avoided.

As an example, the telescopic member 107 may be a telescopic cylinder, or may be a screw structure, but is not limited thereto.

Further, the lifting appliance may further include a controller, and the at least one supporting wheel 103 is fixedly provided with a displacement sensor 106, where the controller can control the expansion and contraction of the expansion and contraction member 107 according to detection data of the displacement sensor 106, for example, but not limited to, the displacement sensor 106 may be disposed on the first slave pivot shaft 110 or the second slave pivot shaft 111, and of course, the displacement sensor 106 may also be disposed on the first slave pivot shaft 110 and the second slave pivot shaft 111, respectively. The controller can be arranged on the lifting appliance or other components, in this embodiment, the controller can be arranged on the second lifting plate 105 to smoothly transmit signals with the displacement sensor 106, so that the moving precision of the telescopic piece 107 is further improved, and the precision of the lifting appliance can be further improved.

The lifting appliance provided by the disclosure drives the toothed belt 102 to move through the driving gear 101, so that the posture adjustment of a piece to be lifted in the air can be realized, for example, but not limited to, the piece to be lifted is turned over in the air, the single-hook lifting and turning are realized, and the lifting efficiency of the piece to be lifted (such as a tower section) is improved. Further, compared with the hoisting of the blades and the engine room, the tower section hoisting can be butted under the floating state of the installation ship, so that the range of the installation ship is further widened, the efficiency of the tower hoisting is greatly improved, and the tower hoisting device is suitable for the tower hoisting in the low price age and reduces the cost. Further, through tooth engagement between the toothed belt 102 and the driving gear 101 and the supporting wheel 103, power transmission is realized, slipping in the hoisting process of the toothed belt 102 is avoided, and therefore the safety of the lifting appliance is improved to a certain extent.

Referring to fig. 3 and 4, in another aspect of the present disclosure, a lifting system is provided, which may include a lifting appliance as described above. In addition, the hoisting system may further comprise a clamping disc 303 for connecting with the tower section flange, the top of the clamping disc 303 may be connected with a boom 301 and a turning adjusting member 302, and the boom 301 may be arranged near the middle of the clamping disc 303. Specifically, a first end of the boom 301 may be connected to the clamping disk 303 and disposed near a middle portion of the clamping disk 303, a second end of the boom 301 is connected to a first end of the toothed belt 102, a first end of the turn-over adjuster 302 is disposed at an edge of the clamping disk 303, and a second end of the turn-over adjuster 302 is connected to the middle portion of the boom 301. The turning adjusting member 302 is in a telescopic structure, so that the inclination angle of the boom 301 relative to the tower section 200, that is, the included angle between the boom 301 and the central axis of the tower section 200 is adjusted by the telescopic adjustment of the turning adjusting member 302, thereby realizing the function of adjusting the center of gravity of the clamping disc 303 and the tower section 200 after being hoisted. In this embodiment, the turning adjusting member 302 may be a telescopic cylinder or a screw structure.

Fig. 3 shows a block diagram of a hoisting system, wherein the tower section 200 is in an inclined state. Fig. 4 shows a block diagram of the hoisting system, wherein the tower section 200 is in a longitudinally placed state.

In the process of changing the tower section 200 from the state in fig. 3 to the state in fig. 4, the turning adjusting member 302 may be extended, and the included angle between the turning adjusting member 302 and the boom 301 may be reduced, until the tower section 200 and the boom 301 are both vertically disposed. Of course, in the process of changing the tower section 200 from the state in fig. 4 to the state in fig. 3, the turning adjusting member 302 may be shortened, the included angle between the turning adjusting member 302 and the boom 301 may be increased, the turning adjusting member 302 may be further shortened, and the tower section 200 may be placed in a horizontal state, where the boom 301 is still placed in a vertical state.

Further, the hoisting system may further comprise a tail-sliding structure, which is arranged near the bottom end of the tower section and on the peripheral wall of the tower section 200, and the second end of the toothed belt 102 may be connected to the tail-sliding structure.

In the description of the present disclosure, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present disclosure and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present disclosure.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present disclosure, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present disclosure, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art in the specific context.

The described features, structures, or characteristics of the disclosure may be combined in any suitable manner in one or more embodiments. In the above description, numerous specific details are provided to give a thorough understanding of embodiments of the present disclosure. One skilled in the relevant art will recognize, however, that the disclosed aspects may be practiced without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

Claims

1. A hoisting system, characterized in that it is suitable for hoisting tower sections (200), said hoisting system comprising a hoisting appliance comprising a frame and a hoisting unit, said frame comprising a hoisting shaft (109) cooperating with a hoisting belt (402) for hoisting said hoisting appliance,

The lifting unit comprises a driving gear (101), a toothed belt (102), a supporting wheel (103) and a driving device, wherein the driving gear (101) is connected to the lifting shaft (109), one end of the toothed belt (102) is used for being connected to one end of the tower section (200), a first side surface of the toothed belt (102) can be meshed with the driving gear (101), a second side surface, opposite to the first side surface, of the toothed belt (102) is supported on the supporting wheel (103), the driving device can drive the driving gear (101) to rotate, and then drive the toothed belt (102) to move,

The lifting unit comprises at least two supporting wheels (103), at least two supporting wheels (103) are arranged at intervals in the extending direction of the toothed belt (102), at least two supporting wheels (103) are respectively and rotatably connected to the bracket, the distance between two adjacent supporting wheels (103) is adjustable,

The hoisting system further comprises a clamping disc (303) used for being connected with a tower section flange, the top of the clamping disc (303) is connected with a hanging rod (301) and a turning-over adjusting piece (302), two ends of the hanging rod (301) are respectively hinged to the middle of the clamping disc (303) and the other end of the toothed belt (102), two ends of the turning-over adjusting piece (302) are respectively hinged to the edge of the clamping disc (303) and the hanging rod (301), and the turning-over adjusting piece (302) is of a telescopic structure so as to adjust the inclination angle of the hanging rod (301) relative to the tower section (200) through the telescopic adjustment of the turning-over adjusting piece (302).

2. Hoisting system according to claim 1, characterized in that at least two of the support wheels (103) comprise a first support wheel (103-1) and a second support wheel (103-2), the first support wheel (103-1) and the second support wheel (103-2) being connected to the bracket via a first and a second wheel pivot axle (110, 111), respectively.

3. Hoisting system according to claim 2, characterized in that the hoisting means further comprise a telescopic member (107), both ends of the telescopic member (107) being rotatably connected to the first and second slave pivot shafts (110, 111), respectively, for adjusting the distance between the first support wheel (103-1) and the second support wheel (103-2) by means of an elongation or a shortening of the telescopic member (107).

4. The hoisting system as claimed in claim 2, characterized in that the support further comprises a first hanger plate (104) and a second hanger plate (105) rotatably connected to the hoisting shaft (109), the first support wheel (103-1) and the second support wheel (103-2) being arranged on the first hanger plate (104) and the second hanger plate (105), respectively, and the first hanger plate (104) and the second hanger plate (105) being arranged at intervals along the axial direction of the hoisting shaft (109).

5. Hoisting system according to claim 4, characterized in that the hoisting means further comprise telescopic members (107), the first hoisting plate (104) and the second hoisting plate (105) being arranged in pairs and symmetrically on both sides of the supporting wheel (103), respectively, the telescopic members (107) being rotatably connected between adjacent first hoisting plate (104) and second hoisting plate (105) for adjusting the distance between the two supporting wheels (103) by means of an elongation or a shortening of the telescopic members (107).

6. Hoisting system according to any one of claims 1-5, characterized in that the supporting wheel (103) is a gear, and that the second side of the toothed belt (102) is capable of meshing with the supporting wheel (103).

7. Hoisting system according to claim 3 or 5, characterized in that the hoisting appliance further comprises a controller, at least one of the support wheels (103) is fixedly provided with a displacement sensor (106), and the controller is capable of controlling the extension or shortening of the telescopic member (107) in accordance with the detection data of the displacement sensor (106).

8. The hoisting system as claimed in claim 6, characterized in that the hoisting means further comprise a hoisting wheel (108), the hoisting wheel (108) being rotatably arranged on the hoisting shaft (109) and the hoisting wheel (108) being intended to cooperate with the hoisting belt (402), the hoisting units being arranged in pairs and symmetrically arranged on both axial sides of the hoisting wheel (108).

9. The hoisting system as claimed in claim 1, characterized in that it further comprises a tail-slip structure arranged on the peripheral wall near the bottom end of the tower section (200) and connected to the toothed belt (102).