CN115140642A

CN115140642A - Lifting appliance and lifting system

Info

Publication number: CN115140642A
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: 2022-10-04
Anticipated expiration: 2041-03-31
Also published as: CN115140642B

Abstract

The utility model provides a hoist and mount system, the hoist can the hoist include support and hoisting unit, the support includes the axle of lifting with being used for lifting by crane the suspender complex of hoist, the unit of lifting by crane includes the driving gear, the toothed belt, supporting wheel and drive arrangement, the driving gear is connected on the axle of lifting by crane, the both ends of toothed belt are used for connecting respectively at the both ends of treating the piece of lifting by crane, the first side of toothed belt can mesh with the driving gear, the second side relative with first side of toothed belt supports on the supporting wheel, drive arrangement can drive the driving gear rotatory, and then drive the toothed belt and remove, can drive the toothed belt through the driving gear removal, in order to drive the piece of waiting to lift by crane and carry out attitude adjustment in the air, thereby can realize waiting to lift by crane's single hook hoist, can reduce the quantity of the loop wheel machine in the hoist process, and then reduce the hoist cost.

Description

Lifting appliance and lifting system

Technical Field

The utility model belongs to the technical field of wind power generation, especially, relate to a hoist and hoist system for hoisting pylon.

Background

The tower of the wind generating set is generally formed by fixedly connecting multiple sections of tower cylinder sections in sequence along the height direction, and the final installation time of the wind generating set is directly influenced by the hoisting efficiency of the tower.

At present, the hoisting of a tower section usually needs a plurality of cranes to adjust the attitude of the tower section in the air, for example, one of the cranes is connected to a top flange of the tower section, the other crane is connected to a bottom flange of the tower section, and the longitudinal heights of two ends of the tower section are adjusted by respectively controlling the two cranes to adjust the tower section in a horizontal state to be in 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 to be solved urgently by those skilled in the art.

Disclosure of Invention

The main object of this disclosure is to provide a hoist and hoist system, can reduce the hoist and mount cost of pylon.

Aiming at the above purpose, the present disclosure provides the following technical solutions:

one aspect of the disclosure provides a lifting appliance, the lifting appliance comprises a support and a lifting unit, the support 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 part to be lifted, a first side face of the toothed belt can be meshed with the driving gear, a second side face, opposite to the first side face, of the toothed belt 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 remove through driving gear drive toothed belt to the drive treats that hoist and mount piece carries out the attitude adjustment in the air, thereby can realize treating the single hook hoist and mount of hoist and mount piece, can reduce the quantity of the loop wheel machine of hoist and mount in-process, and then reduces the hoist and mount cost.

According to an exemplary embodiment of the disclosure, the lifting unit comprises 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 comprise a first supporting wheel and a second supporting wheel, and the first supporting wheel and the second supporting wheel are respectively connected with the bracket through a first driven wheel pivot shaft and a second driven wheel pivot shaft. So set up, adopt two at least supporting wheels to support the toothed belt, increased the area of contact of toothed belt and supporting wheel, make the operation of toothed belt more stable.

Further, the spreader further comprises a telescopic member, and two ends of the telescopic member are respectively and rotatably connected to the first driven wheel pivot shaft and the second driven wheel pivot shaft, so that the distance between the first supporting wheel and the second supporting wheel can be adjusted through the extension or contraction of the telescopic member. So set up, through connect the extensible member between first slave wheel pivot axle and second slave wheel pivot axle, can adjust the distance between two supporting wheels to make the hoist can adapt to the piece of waiting to hoist of different sizes, improved the commonality of hoist.

In another exemplary embodiment of the present disclosure, the bracket further includes a first hanging plate and a second hanging plate rotatably connected to the lifting shaft, the first supporting wheel and the second supporting wheel are respectively disposed on the first hanging plate and the second hanging plate, and the first hanging plate and the second hanging plate are disposed at an interval in an axial direction of the lifting shaft. So set up, through first hanger plate and second hanger plate respectively with two supporting wheels connect on the lifting axle, simple structure, low in manufacturing cost is honest and clean.

Specifically, the lifting appliance further comprises telescopic pieces, the first lifting plate and the second lifting plate are arranged in pairs and are symmetrically arranged on two sides of the supporting wheels respectively, and the telescopic pieces are rotatably connected between the adjacent first lifting plate and the second lifting plate so as to adjust the distance between the two supporting wheels through the extension or the shortening of the telescopic pieces. 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 the hoist can adapt to not unidimensional to treat the hoist and mount 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. So set up, through supporting wheel and toothed belt meshing, further improved the reliability of hoist.

Specifically, the lifting appliance further comprises a controller and at least one support wheel, wherein a displacement sensor is fixedly arranged on the support wheel, and the controller can control the extension 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 degree of treating hoist and mount piece in hoist and mount in-process to can reduce the hoist and mount cost.

According to another exemplary embodiment of the present disclosure, the lifting appliance further comprises lifting wheels, the lifting wheels are rotatably disposed on the lifting shafts, and the lifting units are disposed in pairs and symmetrically disposed at two axial sides of the lifting wheels. So set up, in the hoist use, when the driving gear is rotatory to remove with the drive dentiform area, the lifting wheel can not be rotatory 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 hoisting system is provided, which includes the hoisting tool as described above, and the hoisting system is suitable for hoisting a tower tube section.

Furthermore, the hoisting system further comprises a clamping disc used for being connected with a tower section flange, the top of the clamping disc is connected with a suspender and a turning-over adjusting piece, two ends of the suspender are hinged to the middle of the clamping disc and the toothed belt respectively, two ends of the turning-over adjusting piece are hinged to the edge of the clamping disc and the suspender respectively, and the turning-over adjusting piece is of a telescopic structure and can adjust the inclination angle of the suspender relative to the tower section through the stretching of the turning-over adjusting piece. So set up, can adjust jib and stand up the contained angle between the adjustment piece through the extension of standing up the adjustment piece or shortening to can adjust the gesture of treating hoist and mount piece, and then adjust the focus of treating hoist and mount piece.

In another exemplary embodiment of the present disclosure, the hoisting system further comprises a tail sliding structure, and the tail sliding structure is arranged on the outer peripheral wall close to the bottom end of the tower cylinder section and connected to the toothed belt. So set up, through with the setting of swift current tail structure on the periphery wall of the bottom that is close to tower section of thick bamboo section, can avoid contacting with the flange of tower section of thick bamboo section bottom to can avoid hoist and mount in-process flange to warp.

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

Drawings

The above and/or other objects and advantages of the present disclosure will become more apparent from the following description of the 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.

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

Figure 4 is a side view of the hoist system of figure 3.

Description of reference numerals:

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

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

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

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

107. a telescoping member; 108. Lifting wheels;

109. lifting the shaft; 110. A first slave wheel pivot shaft;

111. a second slave wheel pivot axis; 200. A tower section;

301. a boom; 302. A turning-over adjusting member;

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

402. a sling.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be understood that the aspects of the present disclosure are limited to the embodiments set forth herein. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description 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 support and a lifting unit, the support may include a lifting shaft 109 cooperating 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 used to be connected to two ends of an object to be lifted, a first side surface of the toothed belt 102 may be engaged with the driving gear 101, a second side surface of the toothed belt 102 opposite to the first side surface is supported on the supporting wheel 103, and the driving device may drive 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, the toothed belt 102 can be driven to move through the driving gear 101, so that the to-be-hoisted piece is driven to adjust the posture in the air, single-hook hoisting of the to-be-hoisted piece can be achieved, the number of cranes in the hoisting process can be reduced, and hoisting cost is reduced.

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

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

The hoisting units can be symmetrically arranged at two axial sides of the hoisting wheel 108, so that the hoisting wheel 108 can keep stress balance, and the lifting appliance is prevented from overturning in the hoisting process, thereby improving the safety of the lifting appliance. As shown in the drawings, the embodiment is described by taking an example in which the spreader includes a pair of symmetrically arranged hoisting units, and each of the hoisting units 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 located below the driving gear 101, the toothed belt 102 may be located 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 running of the toothed belt 102 is more stable. Specifically, the lifting unit may include at least two support wheels 103, the at least two support wheels 103 may be arranged at intervals in an extending direction of the toothed belt 102, and the at least two support wheels 103 may include a first support wheel 103-1 and a second support wheel 103-2.

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

In the embodiment, the driving gear 101 is meshed with the toothed belt 102 through teeth, and the toothed belt 102 can move relative to the hanging strip 402 or the crane hook 401 in the hoisting process, so that the posture of a piece to be hoisted 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 the toothed belt 102 is arranged between the support wheel 103 and the driving gear 101.

The first and second support wheels 103-1 and 103-2 may be connected to the bracket by first and second slave-wheel pivot axes 110 and 111, respectively. The spreader may further comprise a telescopic member 107, both ends of the telescopic member 107 being rotatably connected to the first and second slave wheel pivot axes 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 and are respectively positioned at two sides of the driving gear 101, 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 gear 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, 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, the driving gear 101 is driven to rotate through the driving device, the toothed belt 102 is driven to move, a piece to be hoisted (such as a tower drum) can be connected with the toothed belt 102, and the movement of the toothed belt 102 can drive the piece to be hoisted to perform posture adjustment in the air.

As an example, the spreader according to the embodiments of the present disclosure may further include a lifting wheel 108, and the lifting wheel 108 may be rotatably disposed on a lifting shaft 109, for example, may be rotatably mounted on the lifting shaft 10 through a bearing. The driving gears 101 are fixedly disposed on the lifting shaft 109 and located at both sides of the lifting wheel 108. The driving device can drive the lifting shaft 109 to rotate, thereby driving 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 spreader may include two lifting wheels 108 and two driving gears 101 disposed coaxially with the lifting wheels 108, and the two driving gears 101 may be symmetrically disposed on two sides of the lifting wheels 108, so that during the lifting of the spreader, the spreader may be balanced to avoid overturning, thereby improving the safety of the spreader. It will be appreciated that the hoist wheel 108 and the drive gear 101 may also be non-coaxially disposed.

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 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 press 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 can be a columnar structure (for example, a tower barrel), two ends of the toothed belt 102 can be respectively connected to two ends of the piece to be hoisted, and in the moving process of the toothed belt 102, the longitudinal heights of the two ends of the piece to be hoisted can be relatively moved so as to change the posture of the piece to be hoisted in the air, for example, but not limited to, the piece to be hoisted can be a tower barrel section 200. In an initial hoisting state, the tower cylinder section 200 can be hoisted in a horizontal state, and the tower cylinder section 200 can be in a vertical state after the toothed belt 102 moves, so that the tower cylinder section 200 can be conveniently installed.

The supporting wheel 103 may be a pivoting wheel, and in case the supporting wheel 103 may be a gear, the second side of the toothed belt 102 may be engaged with the supporting wheel 103, and in case the toothed belt 102 is engaged with the supporting wheel 103, the toothed belt 102 may drive the supporting wheel 103 to rotate. The driving gear 101, the supporting wheel 103 and the toothed belt 102 are engaged with each other by teeth, so that the safety of the hanger can be improved. In particular, on the one hand, the toothed belt 102 is prevented from slipping during hoisting, thereby improving the safety of the spreader. On the other hand, the reverse movement of the toothed belt 102 can be avoided, and the toothed meshing can enable the movement of the toothed belt 102 to be more accurate, so that the accuracy of the lifting appliance is improved.

Further, the supporting wheel 103 may also be a fixed wheel or a supporting bracket, in the case that the supporting wheel 103 is a fixed wheel, the outer circumferential 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 a hanger shaft 109, 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 slave wheel pivot axis 110 and a second slave wheel pivot axis 111, respectively, and the first hanger plate 104 and the second hanger plate 105 are disposed at intervals in an axial direction of the hanger shaft 109 to avoid interference. As an example, upper ends of the first and

second suspension plates

104 and 105 may be connected to the suspension shaft 109, and the first and second

wheel pivot shafts

110 and 111 may be connected to lower ends of the first and

second suspension plates

104 and 105, respectively.

As shown in fig. 1, the first hanger plate 104 may extend obliquely in a lower left direction from the lifting axle 109, the second hanger plate 105 may extend obliquely in a lower right direction from the lifting axle 109, and the first and second

wheel pivot shafts

110 and 111 may be connected to the first and

second hanger plates

104 and 105, respectively, below the lifting axle 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 increase the versatility of the spreader to be used for lifting different sizes of items to be lifted, the spreader may comprise 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 the distance between the first support wheel 103-1 and the second support wheel 103-2 by extension and contraction of the telescopic member 107. As an example, both ends of the telescopic member 107 are hinged to the first hanger plate 104 and the second hanger plate 105, respectively.

In the following, taking the tower cylinder section 200 as an example, when the tower cylinder section 200 is placed horizontally, one end of the toothed belt 102 may be connected to the center of the top flange of the tower cylinder section 200, and the other end of the toothed belt 102 may be connected to the outer circumferential wall of the bottom of the tower cylinder section 200. When the driving gear 101 rotates and drives the toothed belt 102 to move, the tower section 200 tilts with respect to the horizontal direction. Therefore, the length of the toothed belt 102 on both sides of the support wheel 103 is adjusted by the rotation of the driving gear 101, thereby adjusting the height of both ends of the toothed belt 102. When the length of the toothed belt between the support wheel 103 and the top flange of the tower section 200 becomes smaller, the top of the tower section 200 is gradually lifted up, so that the tower section 200 can be transferred from the horizontal position to the vertical position. In the vertical position of tower segment 200, the transverse distance between the ends of toothed belt 102 may be greater than the length of the radius of tower segment 200, so as to prevent toothed belt 102 from interfering with the outer wall of tower segment 200. The lateral distance between the two ends of toothed belt 102 can be adjusted by adjusting the length of telescopic member 107, so that tower segments 200 of different sizes can be accommodated, and interference between toothed belt 102 and the outer circumferential wall of tower segment 200 is avoided.

To further improve the stability of the spreader, the first and

second hanger plates

104 and 105 may be provided in pairs, respectively, and a pair of the first hanger plates 104 may be provided on both sides of the first support wheels 103-1 supported thereby, and a pair of the second hanger plates 105 may be provided on both sides of the second support wheels 103-2 supported thereby, so that the support wheels 103 may be stably coupled to the lifting axle 109.

In this embodiment, the pair of second hanging plates 105 may be located at the outer sides of the pair of first hanging plates 104 in the axial direction of the hanging shaft 109, and the first hanging plates 104 and the second hanging plates 105 are spaced apart to avoid interference between the first hanging plates 104 and the second hanging plates 105 when the two support wheels 103 approach or separate from each other. The two ends of the telescopic member 107 may be hinged between the adjacent first and

second hanger plates

104 and 105, respectively.

Optionally, the telescoping member 107 may also be coupled to the first and second

wheel pivot axles

110, 111, not shown, and by coupling the telescoping member 107 to the first and second

wheel pivot axles

110, 111, interference or jamming of the telescoping member 107 with other components during rotation of the support wheel 103 may be avoided.

The telescopic member 107 may be a telescopic cylinder, or may be a screw structure, but is not limited thereto.

Further, the spreader may further include a controller, and a displacement sensor 106 is fixedly disposed on at least one of the support wheels 103, and the controller may control the expansion and contraction of the telescopic member 107 according to the detection data of the displacement sensor 106, for example, but not limited to, the displacement sensor 106 may be disposed on the first wheel pivot axle 110 or the second wheel pivot axle 111, and of course, the displacement sensor 106 may be disposed on each of the first wheel pivot axle 110 and the second wheel pivot axle 111. The controller may be disposed on the lifting device or on other components, and in this embodiment, the controller may be disposed on the second lifting plate 105 to enable smooth signal transmission with the displacement sensor 106, so as to further improve the moving accuracy of the extensible member 107, and thus improve the accuracy of the lifting device.

The lifting appliance provided by the disclosure drives the toothed belt 102 to move through the driving gear 101, so that the posture of a piece to be lifted in the air can be adjusted, for example, but not limited to, the piece to be lifted is turned over in the air, single-hook lifting and turning are realized, and the lifting efficiency of the piece to be lifted (such as a tower barrel section) is improved. Further, compared with the hoisting of the blades and the engine room, the hoisting of the tower barrel sections can be in butt joint in the floating state of the installation ship, so that the range of the installation ship is further widened, the efficiency of hoisting the tower is greatly improved, the method is suitable for hoisting the tower in the flat time, and the cost is reduced. Furthermore, the power transmission is realized through the tooth meshing between the toothed belt 102 and the driving gear 101 and the supporting wheel 103, the slipping of the toothed belt 102 in the hoisting process is avoided, and the safety of the lifting appliance is improved to a certain extent.

Referring to fig. 3 and 4, another aspect of the present disclosure provides a hoist system, which may include a spreader as described above. In addition, the hoisting system can further comprise a clamping disc 303 used for connecting tower section flanges, a suspension rod 301 and a turnover adjusting piece 302 can be connected to the top of the clamping disc 303, and the suspension rod 301 can be arranged close to the middle of the clamping disc 303. Specifically, a first end of the boom 301 may be connected to the clamp plate 303 and disposed near the middle of the clamp plate 303, a second end of the boom 301 is connected to a first end of the toothed belt 102, a first end of the roll-over adjuster 302 is disposed at an edge of the clamp plate 303, and a second end of the roll-over adjuster 302 is connected to the middle of the boom 301. The turning adjusting part 302 is of a telescopic structure, so that the inclination angle of the suspender 301 relative to the tower tube section 200, namely the included angle between the suspender 301 and the central axis of the tower tube section 200, is adjusted through the extension and retraction of the turning adjusting part 302, and the gravity center adjusting function after the clamping disc 303 and the tower tube section 200 are hoisted is realized. In this embodiment, the turning adjusting member 302 may be a telescopic cylinder or a screw structure.

FIG. 3 shows a block diagram of the hoist system, wherein the tower segment 200 is in an inclined position. FIG. 4 illustrates a block diagram of the lift system with tower segments 200 in a longitudinally disposed configuration.

During the process of changing the tower barrel section 200 from the state shown in fig. 3 to the state shown in fig. 4, the turning adjustment member 302 may be extended to reduce the included angle between the turning adjustment member 302 and the suspension rod 301 until the tower barrel section 200 and the suspension rod 301 are both vertically disposed. Of course, during the process of changing the tower segment 200 from the state shown in fig. 4 to the state shown in fig. 3, the roll-over adjustment member 302 may be shortened, the included angle between the roll-over adjustment member 302 and the suspension rod 301 may be increased, and the roll-over adjustment member 302 may be further shortened, so that the tower segment 200 may be in the horizontal state, and the suspension rod 301 may be still in the vertical state.

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

The lifting appliance provided by the disclosure drives the toothed belt 102 to move through the driving gear 101, so that the posture of a piece to be lifted in the air can be adjusted, for example, but not limited to, the piece to be lifted is turned over in the air, single-hook lifting and turning are realized, and the lifting efficiency of the piece to be lifted (such as a tower barrel section) is improved. Further, compared with the hoisting of the blades and the engine room, the hoisting of the tower barrel sections can be in butt joint in the floating state of the installation ship, so that the range of the installation ship is further widened, the efficiency of hoisting the tower is greatly improved, the method is suitable for hoisting the tower in the flat time, and the cost is reduced. Furthermore, the toothed belt 102 is meshed with the driving gear 101 and the supporting wheel 103 to realize power transmission, so that slipping in the hoisting process of the toothed belt 102 is avoided, and the safety of the lifting appliance is improved to a certain extent.

In the description of the present disclosure, it is to 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 those shown in the drawings, and are only for convenience in describing and simplifying the disclosure, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the disclosure.

The terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present disclosure, "a plurality" means two or more unless otherwise specified.

In the description of the present disclosure, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art.

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 disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. 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 spreader, characterized in that the spreader comprises a support and a lifting unit, the support comprising a lifting axle (109) cooperating with a sling (402) for lifting the spreader,

the lifting unit comprises a driving gear (101), a toothed belt (102), a supporting wheel (103) and a driving device, the driving gear (101) is connected to the lifting shaft (109), two ends of the toothed belt (102) are respectively used for being connected to two ends of a piece to be lifted, 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), and the driving device can drive the driving gear (101) to rotate so as to drive the toothed belt (102) to move.

2. The spreader according to claim 1, wherein the hoisting unit comprises at least two support wheels (103), wherein the at least two support wheels (103) are arranged at intervals in the extension direction of the toothed belt (102), wherein the at least two support wheels (103) comprise a first support wheel (103-1) and a second support wheel (103-2), and wherein the first support wheel (103-1) and the second support wheel (103-2) are connected with the carrier by a first driven wheel pivot axis (110) and a second driven wheel pivot axis (111), respectively.

3. The spreader according to claim 2, characterized in that the spreader further comprises a telescopic member (107), both ends of the telescopic member (107) being rotatably connected to the first and second slave wheel pivot axes (110, 111), respectively, for adjusting the distance between the first and second support wheels (103-1, 103-2) by elongation or contraction of the telescopic member (107).

4. The spreader according to claim 2, wherein the bracket further comprises a first spreader plate (104) and a second spreader plate (105) rotatably connected to the lifting axle (109), the first support wheel (103-1) and the second support wheel (103-2) are respectively disposed on the first spreader plate (104) and the second spreader plate (105), and the first spreader plate (104) and the second spreader plate (105) are spaced apart in an axial direction of the lifting axle (109).

5. The spreader according to claim 4, further comprising a telescopic member (107), wherein the first and second suspension plates (104, 105) are arranged in pairs and symmetrically arranged on both sides of the support wheel (103), respectively, and the telescopic member (107) is rotatably connected between the adjacent first and second suspension plates (104, 105) to adjust the distance between the two support wheels (103) by lengthening or shortening the telescopic member (107).

6. The spreader according to any of the claims 1-5, wherein the support wheels (103) are gear wheels, the second side of the toothed belt (102) being capable of meshing with the support wheels (103).

7. The spreader according to claim 3 or 5, further comprising a controller, wherein a displacement sensor (106) is fixedly arranged on at least one of the support wheels (103), and the controller is capable of controlling the expansion element (107) to expand or contract according to the detection data of the displacement sensor (106).

8. The spreader according to claim 6, further comprising hoisting wheels (108), the hoisting wheels (108) being rotatably arranged on the hoisting shaft (109) and the hoisting wheels (108) being adapted to cooperate with the hoisting straps (402), the hoisting units being arranged in pairs and symmetrically on both axial sides of the hoisting wheels (108).

9. Hoisting system, characterized in that it comprises a spreader according to any of claims 1-8, which hoisting system is adapted for hoisting a tower section (200).

10. The hoisting system of claim 9, further comprising a clamping disc (303) for connecting tower section flanges, wherein a suspension rod (301) and a turning-over adjusting member (302) are connected to the top of the clamping disc (303), both ends of the suspension rod (301) are respectively hinged to the middle of the clamping disc (303) and the toothed belt (102), both ends of the turning-over adjusting member (302) are respectively hinged to the edge of the clamping disc (303) and the suspension rod (301), and the turning-over adjusting member (302) is of a telescopic structure so as to adjust the inclination angle of the suspension rod (301) relative to the tower section (200) through the expansion and contraction of the turning-over adjusting member (302).

11. The hoisting system according to claim 9, characterized in that it further comprises a tail structure arranged on the peripheral wall near the bottom end of the drum segment (200) and connected to the toothed belt (102).