Wind turbine tower elevator system and wind turbine

Abstract

The present invention relates to the field of wind power generation devices, and provides a wind turbine tower elevator system and a wind turbine. The wind turbine tower elevator system comprises a tower, an anti-swing support, an anti-swing rod, and an elevator; the anti-swing support is fixed to the inner wall of the tower to form a clearance passage that allows the elevator to pass through; the anti-swing rod is provided with two anti-swing through holes that respectively allow a safety wire rope and a traction wire rope to pass through; the anti-swing rod is overlapped on the anti-swing support; and when the elevator passes through the clearance passage and moves from below the anti-swing support to above the anti-swing support, the anti-swing rod can be overlapped on the top of the elevator. When the elevator passes through the anti-swing support from bottom to top, the anti-swing rod is transferred to the top of the elevator from the anti-swing support and moves along with the elevator; and when the elevator passes through the anti-swing support from the top to the bottom, the anti-swing rod is transferred to the anti-swing support from the top of the elevator, and during the movement, the safety wire rope and the traction wire rope are kept at a distance by means of the anti-swing through holes in the anti-swing rod, preventing the wire ropes from tangling with each other or with other components in the tower during shaking.

Description

Fan tower lifting system and wind turbine

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202421904105.5, filed on August 7, 2024, entitled "Fan tower lifting system and wind turbine", and Chinese Patent Application No. 202411080030.8, filed on August 7, 2024, entitled "Fan tower lifting system and wind turbine", which are incorporated by reference in their entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of wind power generation equipment, and in particular to a fan tower lifting system and a wind turbine. BACKGROUND

[0004] Wind turbines need to be regularly maintained, and since the height of a wind turbine is over 100 meters, the common way to maintain it is to install an elevator inside the tower to send workers, tools or materials from the starting surface to the designated work platform.

[0005] The elevator is usually provided with traction steel wire ropes, safety steel wire ropes and power supply cables. During the lifting movement of the elevator along the tower, the traction steel wire ropes and safety steel wire ropes extending along the running path of the elevator will sway or even entangle, which not only affects the normal operation of the elevator, but also makes the process of recovering the entangled steel wire ropes more dangerous and complicated.

[0006] SUMMARY

[0007] The present application provides a fan tower lifting system and a wind turbine to solve the problem of entanglement of steel wire ropes and cables in the prior art, which affects the normal operation of the elevator.

[0008] The present application provides a fan tower lifting system, comprising a tower, an anti-sway bracket, an anti-sway rod and an elevator, the anti-sway bracket is fixed to the inner wall of the tower to form an avoidance passage for the elevator to pass through, the anti-sway rod is provided with two anti-sway through holes for the safety steel wire rope and the traction steel wire rope to pass through respectively, when the elevator is located below the anti-sway bracket, the anti-sway rod is arranged on the anti-sway bracket, when the elevator moves from below the anti-sway bracket to above the anti-sway bracket through the avoidance passage, the anti-sway rod can be arranged on the top of the elevator and run with the elevator.

[0009] The wind turbine tower lifting system provided by the application is characterized in that the top of the lifting machine is provided with a mounting groove, and the anti-swing rod is accommodated in the mounting groove when the anti-swing rod is arranged on the top of the lifting machine, so as to constrain the radial movement freedom of the anti-swing rod.

[0010] The wind turbine tower lifting system provided by the application is characterized in that one of the lifting machine and the anti-swing rod is provided with a limiting groove, and the other is provided with a limiting part, and the limiting part is accommodated in the limiting groove when the anti-swing rod is arranged on the top of the lifting machine, so as to constrain the axial movement freedom of the anti-swing rod.

[0011] The wind turbine tower lifting system provided by the application is characterized in that two limiting guide plates are fixedly arranged on the anti-swing rod, the two limiting guide plates cooperatively form the limiting part, the top of the lifting machine is provided with two guide surfaces, and the two guide surfaces are oppositely arranged to form the limiting groove, and the two limiting guide plates are arranged in close contact with the two guide surfaces one by one when the anti-swing rod is arranged on the top of the lifting machine.

[0012] The wind turbine tower lifting system provided by the application is characterized in that the anti-swing support comprises a support body and a pin seat, two pin seats are arranged on opposite sides of the support body, each pin seat is provided with a directional groove, the extension direction of the directional groove is consistent with the lifting direction of the lifting machine, and the two ends of the anti-swing rod are accommodated in the corresponding directional grooves one by one.

[0013] The wind turbine tower lifting system provided by the application is characterized in that a plurality of anti-swing rods are arranged along the height direction of the tower.

[0014] The wind turbine tower lifting system provided by the application further comprises a cable sheath, the cable sheath is fixed to the tower, the lifting machine is provided with a cutter, the side cable of the lifting machine is connected with the cutter and has a gap with the outer wall of the lifting machine, the cutter pushes away the cable sheath as the lifting machine moves upwards, so that the side cable can enter the cable sheath, and the cutter opens the cable sheath as the lifting machine moves downwards, so that the side cable can move out of the cable sheath.

[0015] According to the fan tower lifting system provided by the application, the cable sheath comprises a mounting seat, a first clamping block and a second clamping block, the first clamping block, the second clamping block and the mounting seat are connected to form a constraint hole, the mounting seat is fixed to the tower, the first end of the first clamping block and the first end of the second clamping block are both fixed to the mounting seat, and the second end of the first clamping block and the second end of the second clamping block are arranged in an up-down stacking mode; with the lifting of the elevator, the cutter can separate the first clamping block and the second clamping block, so that the side cable can pass into or out of the constraint hole.

[0016] According to the fan tower lifting system provided by the application, a plurality of cable sheaths for different side cables are arranged in a height direction of the tower.

[0017] The embodiment of the application further provides a wind turbine comprising the fan tower lifting system as described above.

[0018] The fan tower lifting system and the wind turbine provided by the application have the following advantages: the anti-swing support is fixedly installed in the tower, the anti-swing rod is placed on the anti-swing support, when the elevator passes the anti-swing support from bottom to top, the anti-swing rod is transferred from the anti-swing support to the top of the elevator, when the elevator passes the anti-swing support from top to bottom, the anti-swing rod is transferred from the top of the elevator to the anti-swing support, and the anti-swing through hole arranged on the anti-swing rod can keep a certain distance between the safety steel wire rope and the traction steel wire rope, so that the safety steel wire rope and the traction steel wire rope are prevented from being wound and from winding other accessories in the tower. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0020] Fig. 1 is one of the cooperation schematic views of the fan tower lifting system provided by the application.

[0021] Fig. 2 is a cooperation schematic view of the anti-swing support and the anti-swing rod shown in Fig. 1.

[0022] Fig. 3 is a partial cooperation schematic view of the anti-swing support and the anti-swing rod shown in Fig. 1.

[0023] Fig. 4 is another cooperation schematic view of the fan tower lifting system provided by the application.

[0024] Fig. 5 is a cooperation schematic view of the anti-swing support and the anti-swing rod shown in Fig. 4.

[0025] Figure 6 is a third view of the fan tower lifting system of the present application.

[0026] Figure 7 is a view of the anti-swing bracket and anti-swing rod of Figure 6.

[0027] Figure 8 is a first view of the cable sheath of the present application.

[0028] Figure 9 is a second view of the cable sheath of the present application.

[0029] Figure 10 is a fourth view of the fan tower lifting system of the present application.

[0030] Figure 11 is a view of the cable sheath and anti-swing bracket of Figure 10.

[0031] Figure 12 is a fifth view of the fan tower lifting system of the present application.

[0032] Figure 13 is a view of the cable sheath and anti-swing bracket of Figure 12.

[0033] Figure 14 is a sixth view of the fan tower lifting system of the present application.

[0034] Figure 15 is a seventh view of the fan tower lifting system of the present application.

[0035] Figure 16 is a view of the cable sheath and anti-swing bracket of Figure 15.

[0036] Figure 17 is an eighth view of the fan tower lifting system of the present application.

[0037] Figure 18 is a ninth view of the fan tower lifting system of the present application.

[0038] Figure 19 is a tenth view of the fan tower lifting system of the present application.

[0039] Figure 20 is an eleventh view of the fan tower lifting system of the present application.

[0040] Figure 21 is a twelfth view of the fan tower lifting system of the present application.

[0041] 10, tower drum; 20, anti-swing support; 21, support body; 211, transverse support; 212, first frame; 213, second frame; 214, reinforcing plate; 215, side support; 216, cross frame; 217, transverse support; 218, inclined pull; 219, connecting rod; 22, pin seat; 221, directional slot; 30, anti-swing rod; 31, anti-swing through hole; 32, rod body; 33, anti-swing plate; 40, elevator; 41, limiting piece; 42, mounting slot; 43, guide surface; 44, cutter; 50, limiting guide plate; 60, cable sheath; 61, mounting seat; 62, first clamping block; 63, second clamping block; 64, constraint hole; 65, mounting support; 110, safety steel wire rope; 120, traction steel wire rope; 130, guide steel wire rope; 140, cat ladder; 150, side cable. DETAILED DESCRIPTION

[0042] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application. Obviously, the described embodiments are some, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0043] The terms "first", "second" in the description and claims of the present application can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0044] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0045] In the description of the present application, it should be noted that unless specifically stated and limited otherwise, the terms "mounting", "connected", "connection" should be construed broadlyly, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] The fan tower lifting system of the present application is described below in conjunction with FIGS. 1-21.

[0047] The embodiment of the present application provides a fan tower lifting system, as shown in FIGS. 1 and 4, which comprises a tower 10, an anti-swing support 20, an anti-swing rod 30 and a lifting machine 40. The anti-swing support 20 is fixed to the inner wall of the tower 10 to form an avoidance passage for the lifting machine 40 to pass through. When the lifting machine 40 is located below the anti-swing support 20, the anti-swing rod 30 is arranged on the anti-swing support 20 and horizontally arranged on the top of the avoidance passage. As shown in FIGS. 2 and 3, the anti-swing rod 30 is provided with an anti-swing through hole 31 for the safety wire rope 110 and the traction wire rope 120 to pass through. When the lifting machine 40 moves from below the anti-swing support 20 to above the anti-swing support 20 through the avoidance passage, as shown in FIG. 6, the anti-swing rod 30 is arranged on the top of the lifting machine 40 and runs with the lifting machine 40.

[0048] In an embodiment, the anti-swing support 20 is in U shape and comprises three frames. The end portions of the two oppositely arranged frames are fixed to the inner wall of the tower 10, and the other frame is provided with a gap with the inner wall of the tower 10, so that the anti-swing support 20 and the inner wall of the tower 10 cooperatively form an avoidance passage. In another embodiment, the anti-swing support 20 is in square frame shape, one side of which is fixed to the inner wall of the tower 10, and the hollow region of the anti-swing support 20 serves as an avoidance passage for the lifting machine 40 to pass through. In still another embodiment, the anti-swing support 20 comprises two oppositely arranged frames, the end portions of each frame are fixedly connected with the inner wall of the tower 10, and the other end is suspended. The region between the two frames forms an avoidance passage. In this embodiment, one end of the anti-swing rod 30 is arranged on one of the frames, and the other end is arranged on the other frame. It can be understood that the anti-swing support 20 can be arranged in different shapes as required, as long as it can support the anti-swing rod 30 and does not interfere with the up-down movement of the lifting machine 40.

[0049] Optionally, the anti-swing rod 30 can be a straight rod or a bent rod. In one embodiment, as shown in FIG. 3, the anti-swing rod 30 comprises a rod body 32 and an anti-swing plate 33, the anti-swing plate 33 is fixed to the rod body 32, the two ends of the rod body 32 are respectively arranged on the anti-swing support 20, and the anti-swing through hole 31 is arranged on the anti-swing plate 33. In another embodiment, the anti-swing rod 30 is a light rod, only comprising the rod body 32, and the anti-swing through hole 31 is arranged on the rod body 32. The embodiments of the present application do not specifically limit the arrangement position of the anti-swing through hole 31. Generally, the middle part of the elevator 40 is parallelly arranged with the safety steel wire rope 110 and the traction steel wire rope 120, the anti-swing rod 30 is provided with two anti-swing through holes 31, the two anti-swing through holes 31 are arranged at intervals, as shown in FIG. 1, FIG. 4 and FIG. 6, one of the anti-swing through holes 31 is used for the safety steel wire rope 110 to pass through, and the other anti-swing through hole 31 is used for the traction steel wire rope 120 to pass through. It can be understood that the diameters of the two anti-swing through holes 31 are slightly larger than the thicknesses of the safety steel wire rope 110 and the traction steel wire rope 120, so that the safety steel wire rope 110 and the traction steel wire rope 120 can slightly swing in the anti-swing through hole 31, as long as the safety steel wire rope 110 and the traction steel wire rope 120 are kept at a certain interval by means of the two anti-swing through holes 31, and the safety steel wire rope 110 and the traction steel wire rope 120 will not be wound together.

[0050] As shown in FIG. 1 and FIG. 4, when the elevator 40 is below the anti-swing support 20, the anti-swing rod 30 is arranged on the anti-swing support 20. With the upward movement of the elevator 40, the elevator 40 lifts the anti-swing rod 30, so that the anti-swing rod 30 is separated from the anti-swing support 20, and then moves upward synchronously with the elevator 40. As shown in FIG. 6, when the elevator 40 is above the anti-swing support 20, the anti-swing rod 30 is arranged on the top of the elevator 40, and moves upward with the elevator 40. During the downward movement of the elevator 40, the anti-swing rod 30 moves downward along the safety steel wire rope 110 and the traction steel wire rope 120 under the action of gravity, when the elevator 40 moves to below the anti-swing support 20 through the avoiding passage, the anti-swing rod 30 is blocked by the anti-swing support 20, and is arranged on the anti-swing support 20 and no longer moves downward. When the elevator 40 runs below the anti-swing support 20, the two anti-swing through holes 31 arranged at intervals keep the safety steel wire rope 110 and the traction steel wire rope 120 at a certain interval, so as to avoid the safety steel wire rope 110 and the traction steel wire rope 120 from being wound due to the movement of the elevator 40 and the swing of the tower 10. When the elevator 40 runs above the anti-swing support 20, the anti-swing rod 30 is arranged in front of the elevator 40 and moves with the elevator 40, so as to prevent the safety steel wire rope 110 and the traction steel wire rope 120 from swinging and winding greatly, and prevent the safety steel wire rope 110 and the traction steel wire rope 120 from winding other accessories in the tower 10.

[0051] The fan tower lifting system provided by the embodiment of the application has the anti-swing support 20 fixedly installed in the tower 10, and the anti-swing rod 30 is placed on the anti-swing support 20. When the elevator 40 passes the anti-swing support 20 from bottom to top, the anti-swing rod 30 is transferred from the anti-swing support 20 to the top of the elevator 40. When the elevator 40 passes the anti-swing support 20 from top to bottom, the anti-swing rod 30 is transferred from the top of the elevator 40 to the anti-swing support 20. During the whole movement process, the anti-swing through hole 31 provided on the anti-swing rod 30 keeps the safety steel wire rope 110 and the traction steel wire rope 120 at a certain distance, thereby avoiding winding when shaking.

[0052] In a specific embodiment, as shown in FIG. 6, to avoid shaking of the anti-swing rod 30 when the anti-swing rod 30 moves with the elevator 40 on the top of the elevator 40, the mounting through slot 42 is arranged on the top of the elevator 40. In the case that the anti-swing rod 30 is placed on the top of the elevator 40, the anti-swing rod 30 is accommodated in the mounting through slot 42, and the radial movement degree of freedom of the anti-swing rod 30 is constrained through the mounting through slot 42. It can be understood that the extension direction of the mounting through slot 42 is consistent with the axial direction of the anti-swing rod 30.

[0053] The mounting through slot 42 can be directly formed on the top plate of the elevator 40, or indirectly arranged on the top of the elevator 40. For example, the top of the elevator 40 is fixedly installed with the limiting part 41 through bolts, and the mounting through slot 42 is arranged on the limiting part 41. Optionally, the mounting through slot 42 is arranged in pairs, and the opposite ends of the anti-swing rod 30 are respectively accommodated in the mounting through slot 42 on the corresponding side. Of course, the mounting through slot 42 can be arranged only one, as long as it can constrain the radial movement degree of freedom of the anti-swing rod 30 to a certain extent.

[0054] Preferably, the opposite side slot walls of the mounting through slot 42 are arranged at an acute angle, which can provide guidance for the anti-swing rod 30 to enter the mounting through slot 42 and constrain the movement degree of freedom of the anti-swing rod 30. For example, the mounting through slot 42 is a V-shaped slot.

[0055] Therefore, by arranging the mounting through slot 42 on the top of the elevator 40 to constrain the radial movement degree of freedom of the anti-swing rod 30, the stability of the anti-swing rod 30 when moving with the elevator 40 on the top of the elevator 40 is improved, and the winding of the safety steel wire rope 110 and the traction steel wire rope 120 is more effectively prevented.

[0056] In a specific embodiment, one of the elevator 40 and the anti-swing rod 30 is provided with a limiting groove, and the other is provided with a limiting part. In the case that the anti-swing rod 30 is placed on the top of the elevator 40, the limiting part is accommodated in the limiting groove to constrain the axial movement degree of freedom of the anti-swing rod 30.

[0057] Specifically, the extension direction of the limiting slot is perpendicular to the extension direction of the mounting slot 42. For example, the top of the elevator 40 is provided with the limiting slot, and the anti-swing rod 30 is provided with the limiting part capable of cooperating with the limiting slot. For another example, the limiting slot is provided on the anti-swing rod 30, and the limiting part is protruded on the top of the elevator 40 and inserted into the limiting slot to restrict the axial movement freedom of the anti-swing rod 30. Of course, the limiting slot and the limiting part can also be provided on the elevator 40 at the same time, and the anti-swing rod 30 is provided with the corresponding limiting part on the limiting slot of the elevator 40, and the corresponding limiting slot on the limiting part of the elevator 40.

[0058] Therefore, by providing the mounting slot 42 and the limiting slot, the anti-swing rod 30 cannot rotate in the horizontal plane, and the anti-swing rod 30 is prevented from being greatly shaken due to the movement of the elevator 40.

[0059] Optionally, as shown in FIGS. 2, 3, 5 and 7, two limiting guide plates 50 are fixedly installed on the anti-swing rod 30, and the two limiting guide plates 50 cooperatively form the limiting part. The top of the elevator 40 has two guide surfaces 43, and the two guide surfaces 43 are oppositely arranged to form the limiting slot. As shown in FIG. 6, in the case that the anti-swing rod 30 is arranged on the top of the elevator 40, the two limiting guide plates 50 are correspondingly arranged in abutment with the two guide surfaces 43, thereby restricting the axial movement freedom of the anti-swing rod 30.

[0060] The guide surface 43 can be a plane inclined relative to the horizontal plane. In order to facilitate the anti-swing rod 30 to enter, the two guide surfaces 43 are both inclined relative to the horizontal plane, thereby forming the limiting slot with a wide top and a narrow bottom. With the upward movement of the elevator 40, the two inclined guide surfaces 43 can guide the anti-swing rod 30 to fall into the bottom of the limiting slot when the anti-swing rod 30 is not in place. The two guide surfaces 43 are oppositely arranged to form a slot body. Since the limiting guide plates 50 are fixedly connected with the anti-swing rod 30, after the two limiting guide plates 50 are correspondingly arranged in abutment with the two guide surfaces 43, the anti-swing rod 30 cannot move along the axial direction, thereby stabilizing the position of the anti-swing rod 30 relative to the top of the elevator 40 and more effectively preventing the safety steel wire rope 110 and the traction steel wire rope 120 from being entangled.

[0061] The limiting slot can be directly formed on the top of the elevator 40 or formed by means of other structural members. For example, two vertical plates are installed on the top of the elevator 40, and the two vertical plates and the top of the elevator 40 jointly form the limiting slot, and the opposite sides of the two vertical plates are the two guide surfaces 43. It should be noted that the number of the limiting guide plates 50 is two, three or four, etc., as long as the two limiting guide plates 50 can cooperatively restrict the movement freedom of the anti-swing rod 30.

[0062] As shown in FIG. 2, FIG. 3, FIG. 5 and FIG. 7, the limiting guide plate 50 comprises a first plate body and a second plate body, the second plate body is arranged at an obtuse angle with the first plate body, a groove is arranged on the second plate body, and the anti-swing rod 30 is fixed to the first plate body and clamped in the groove. The first plate body is fixed to the bottom of the anti-swing rod 30 by a screw,

[0063] In a preferred embodiment, as shown in FIG. 1, FIG. 4 and FIG. 6, the top of the elevator 40 is provided with a limiting member 41, the guide surface 43 is located on one side wall of the limiting member 41, the limiting member 41 is provided with a mounting groove 42, and the mounting groove 42 penetrates the guide surface 43. Optionally, in order to facilitate the anti-swing rod 30 to enter, the side wall of the limiting member 41 on which the guide surface 43 is located is inclined relative to the horizontal plane. Specifically, the limiting member 41 is in an M shape, the middle part forms a V-shaped mounting groove 42 to constrain the anti-swing rod 30, and the side is provided with an inclined guide surface 43. Among them, the two sides of the M-shaped limiting member 41 are respectively fixedly connected to the top of the elevator 40 by bolts.

[0064] In addition, a guide member can also be arranged on the top of the elevator 40, the guide member has a through groove, the extension direction of the through groove is consistent with the lifting direction of the elevator 40, and the bottom end of the through groove is blocked by the top wall of the elevator 40. When the elevator 40 goes up, the anti-swing rod 30 enters the through groove from the end of the through groove away from the elevator 40, and falls along the through groove to the bottom end of the through groove and abuts against the top wall of the elevator 40, while the movement freedom degree of the anti-swing rod 30 in the radial direction is constrained by the groove walls on the opposite sides of the through groove, and the movement freedom degree of the anti-swing rod 30 in the axial direction is constrained by the two guide members arranged oppositely. Of course, a positioning column can also be arranged on one of the elevator 40 and the anti-swing rod 30, and a positioning hole is arranged on the other, so that the anti-swing rod 30 remains relatively fixed when moving with the elevator 40.

[0065] As shown in FIG. 2, the anti-swing bracket 20 comprises a bracket body 21 and a pin seat 22, and two pin seats 22 are arranged on opposite sides of the bracket body 21. Each pin seat 22 has a directional through groove 221, and the extension direction of the directional through groove 221 is consistent with the lifting direction of the elevator 40. The two ends of the anti-swing rod 30 are correspondingly accommodated in the corresponding directional through grooves 221.

[0066] For the steel wire rope guide hoist, the anti-swing support 20 can be directly fixed to the inner wall of the tower drum 10. For example, as shown in FIGS. 2 and 3, the frame body 21 includes a transverse support 211 and oppositely arranged first and second side frames 212 and 213. One end of the first side frame 212 is fixedly connected to the inner wall of the tower drum 10 by a bolt, and the other end is connected to the transverse support 211 by a bolt. One end of the second side frame 213 is fixedly connected to the inner wall of the tower drum 10 by a bolt, and the other end is connected to the transverse support 211 by a bolt. One of the pin seats 22 is fixed to the first side frame 212 by a bolt, and the other pin seat 22 is fixed to the second side frame 213 by a bolt. The transverse support 211 is in a U shape, and the first and second side frames 212 and 213 and the transverse support 211 are connected in a U shape as a whole. To improve the installation stability of the anti-swing support 20, the frame body 21 further includes a reinforcing plate 214. Specifically, the first and second side frames 212 and 213 are respectively provided with the reinforcing plates 214, and the free ends of the reinforcing plates 214 are fixedly connected to the inner wall of the tower drum 10.

[0067] For the ladder guide hoist, the anti-swing support 20 can adopt the frame body 21 as described above, or other forms of frame body 21 to be connected to the ladder 140. For example, as shown in FIG. 5, the frame body 21 includes a transverse support 217, side supports 215, and a cross support 216. The two side supports 215 are oppositely arranged and connected by the cross support 216 to form a U-shaped frame, and the two pin seats 22 are fixed to the two side supports 215 by bolts one by one. The inner sides of the two side supports 215 are respectively provided with the transverse supports 217, and the end portions of the transverse supports 217 are in the form of a pressing plate to be connected to the ladder 140. To improve the fixing strength of the frame body 21, the frame body 21 further includes a diagonal cable 218, and the end portion of the diagonal cable 218 is fixedly connected to the inner wall of the tower drum 10 by a bolt. The diagonal cable 218 can be arranged above or below the side supports 215, or both above and below the side supports 215. By arranging the diagonal cable 218 as a reinforcing structure, the installation stability of the anti-swing support 20 is improved.

[0068] The pin seat 22 is provided with a directional slot 221, and the relative slot walls of the directional slot 221 constrain the radial movement freedom of the anti-swing rod 30. The two pin seats 22 cooperate to constrain the axial movement freedom of the anti-swing rod 30, thereby ensuring that the anti-swing rod 30 can be relatively fixed with the anti-swing support 20 when it is arranged on the anti-swing support 20. Optionally, the slot width of the directional slot 221 gradually decreases from top to bottom, and the larger opening facilitates the anti-swing rod 30 to enter the directional slot 221 and guide the anti-swing rod 30 to gradually fall into the bottom end of the directional slot 221.

[0069] As shown in FIG. 7, two anti-swing rods 30 are installed on the same anti-swing support 20. Preferably, the anti-swing rods 30 are multiple, and the multiple anti-swing rods 30 are arranged at intervals along the height direction of the tower drum 10. It can be understood that the anti-swing through holes 31 of the multiple anti-swing rods 30 for sleeving the same steel wire rope are coaxially arranged to ensure that the multiple anti-swing rods 30 can be sleeved on the safety steel wire rope 110 and the traction steel wire rope 120. The setting positions of the anti-swing rods 30 and the anti-swing support 20 can be located at the top and / or the middle of the tower drum 10, which is specifically determined according to the specific environment of the tower drum 10.

[0070] In order to effectively constrain the relative position of the anti-swing rod 30 and the elevator 40, the limiting member 41 is arranged at the top of the elevator 40. For example, two anti-swing rods 30 are arranged, and the two anti-swing rods 30 are arranged at intervals along the height direction of the tower drum 10. Two groups of limiting members 41 are arranged at the top of the elevator 40. When the two anti-swing rods 30 are arranged on the top of the elevator 40, as shown in FIG. 6, one of the anti-swing rods 30 is constrained by one group of limiting members 41, and the other anti-swing rod 30 is constrained by the other group of limiting members 41.

[0071] As shown in FIGS. 8 to 21, the wind turbine tower drum lifting system provided by the embodiment of the application further comprises a cable sheath 60 fixed to the tower drum 10. As shown in FIGS. 10, 12 and 14, the elevator 40 is provided with a cutter 44, and the side cable 150 of the elevator 40 is connected with the cutter 44 and has a gap with the outer wall of the elevator 40. When the elevator 40 goes up, the cutter 44 pushes away the cable sheath 60, so that the side cable 150 of the elevator 40 enters the cable sheath 60 and is constrained by the cable sheath 60. When the elevator 40 goes down, the cutter 44 opens the cable sheath 60, so that the side cable 150 of the elevator 40 can move out of the cable sheath 60, thereby releasing the side cable 150 of the elevator 40.

[0072] In addition to the safety steel wire rope 110 and the traction steel wire rope 120, as shown in FIGS. 10, 12, 14 and 15, the side of the elevator 40 is further provided with a power cable and other side cables 150 such as steel wire ropes. Optionally, as shown in FIGS. 11, 13 and 16, the cable sheath 60 is fixed to the anti-swing support 20. Alternatively, as shown in FIG. 14, the cable sheath 60 is located below the anti-swing support 20 and is fixed to the inner wall of the tower drum 10 through a separate mounting support 65. Of course, the cable sheath 60 can also be located above the anti-swing support 20.

[0073] The cutter 44 is a plate or a cylinder. As shown in FIG. 10, FIG. 12 and FIG. 14, the cutter 44 is a vertical plate, and the top end of the cutter 44 contacts the cable sheath 60 to open the cable sheath 60 when the elevator 40 moves upward, so that the side cable 150 installed on the cutter 44 directly enters the cable sheath 60 and is restrained by the cable sheath 60. The bottom end of the cutter 44 contacts the cable sheath 60 to open the cable sheath 60 when the elevator 40 moves downward, so that the side cable 150 installed on the cutter 44 moves out of the cable sheath 60 with the cutter 44. As shown in FIG. 14 and FIG. 17, the cutter 44 is a cylinder, and the side cable 150 passes through the cutter 44 and is connected to the electrical device inside the elevator 40. Alternatively, the cutter 44 is gradually inwardly tapered from the middle to both ends, so that the top and bottom of the cutter 44 are both pointed. When the cutter 44 contacts the cable sheath 60, the pointed end of the cutter 44 can smoothly cut open the cable sheath 60.

[0074] Specifically, when the elevator 40 moves from below the cable sheath 60 to above the cable sheath 60, the cutter 44 pushes away the cable sheath 60, so that the side cable 150 of the elevator 40 enters the cable sheath 60 and is restrained by the cable sheath 60. When the elevator 40 moves above the cable sheath 60, the side cable 150 is always accommodated in the cable sheath 60, and the movement range of the side cable 150 is restrained by the cable sheath 60, so that the side cable 150 is prevented from being entangled with other structures due to excessive swing. When the elevator 40 moves from above the cable sheath 60 to below the cable sheath 60, the cutter 44 opens the cable sheath 60, so that the side cable 150 of the elevator 40 can move out of the cable sheath 60, thereby releasing the side cable 150 of the elevator 40. When the elevator 40 moves below the cable sheath 60, the side cable 150 is no longer restrained by the cable sheath 60.

[0075] As shown in FIG. 8 and FIG. 9, the cable sheath 60 includes a mounting seat 61, a first clamping block 62 and a second clamping block 63, and the first clamping block 62, the second clamping block 63 and the mounting seat 61 are connected to form a restraint hole 64. The mounting seat 61 is fixed to the tower 10, the first ends of the first clamping block 62 and the second clamping block 63 are fixed to the mounting seat 61, and the second ends of the first clamping block 62 and the second clamping block 63 are arranged in a stacked manner. With the lifting of the elevator 40, the cutter 44 can separate the first clamping block 62 and the second clamping block 63 so that the side cable 150 can enter or move out of the restraint hole 64.

[0076] The first clamping block 62 and the second clamping block 63 are U-shaped blocks, and the open ends of the two U-shaped blocks are oppositely arranged. One side wall of the U-shaped block is screwed to the mounting seat 61, and the other side wall of the U-shaped block is overlapped with the other U-shaped block. To facilitate cutting of the overlapping part of the first clamping block 62 and the second clamping block 63, the first clamping block 62 and the second clamping block 63 are flexible and have a certain hardness. When the cutter 44 acts on the region where the first clamping block 62 and the second clamping block 63 are stacked, the first clamping block 62 and the second clamping block 63 are deformed to form an opening, the cutter 44 passes through the cable sheath 60 and brings the side cable 150 into the constraint hole 64. The at least stacked region of the first clamping block 62 and the second clamping block 63 is a flexible structure. For example, the first clamping block 62 and the second clamping block 63 are both rubber parts. For another example, only the stacked region of the first clamping block 62 and the second clamping block 63 is a rubber part, which can be deformed under the action of the cutter 44.

[0077] For a plurality of different side cables 150, the cable sheath 60 can be arranged only for part of the side cables 150. The elevator 40 has a first side wall, a second side wall, a third side wall and a fourth side wall connected in sequence, and the first side wall and the third side wall are oppositely arranged and parallel to the anti-sway rod 30. The first side wall is closer to the connecting end of the anti-sway support 20 and the tower drum 10 than the third side wall. For a steel wire rope guide elevator, as shown in FIGS. 10, 12, 14, 15 and 17, the first side wall is provided with two side cables 150, i.e. a first side cable and a second side cable, and the cable sheath 60 can be arranged only for one side cable 150. As shown in FIG. 11, the anti-sway support 20 is fixedly provided with a connecting rod 219, the connecting rod 219 is arranged in parallel with the anti-sway rod 30, and the connecting rod 219 is fixedly provided with one cable sheath 60 corresponding to the first side cable. As shown in FIG. 13, the connecting rod 219 is fixedly provided with one cable sheath 60 corresponding to the second side cable. As shown in FIG. 14, there is only one cable sheath 60, which is arranged below the anti-sway support 20 and used for restraining the second side cable.

[0078] For a ladder guide elevator, the first side wall, the second side wall and the fourth side wall are all provided with side cables 150. As shown in FIG. 16, the cable sheath 60 is fixed to the side support 215 and arranged corresponding to the side cable 150 arranged on the second side wall or the fourth side wall. As shown in FIG. 17, the cable sheath 60 is fixed to the ladder 140 and arranged corresponding to the side cable 150 arranged on the first side wall.

[0079] For the same side cable 150, a plurality of cable sheaths 60 are arranged. For example, two cable sheaths 60 are arranged at intervals along the height direction of the tower drum 10, one of which is fixedly arranged on the anti-sway support 20, and the other of which is arranged above or below the anti-sway support 20, so as to improve the restraint of the side cable 150.

[0080] The cable sheaths 60 are arranged for different lateral cables 150, as shown in FIGS. 18 and 20, the plurality of cable sheaths 60 can be arranged at the same height of the tower drum 10; as shown in FIGS. 19 and 21, the plurality of cable sheaths 60 can also be arranged at different heights of the tower drum 10. It can be understood that, since the different lateral cables 150 are located at different positions, the plurality of cable sheaths 60 arranged for the different lateral cables 150 are located at different positions of the horizontal plane. For example, the plurality of cable sheaths 60 for restraining the different lateral cables 150 are all arranged on the anti-sway support 20 or above or below the anti-sway support 20, and the specific arrangement position corresponds to the position of the lateral cable 150. Taking the steel wire rope guide hoist as an example, as shown in FIG. 18, two cable sheaths 60 are arranged for two different lateral cables 150, and the two cable sheaths 60 are fixed to the anti-sway support 20 and located on the connecting rod 219 of the anti-sway support 20. Alternatively, as shown in FIG. 20, two cable sheaths 60 are arranged for two different lateral cables 150, and the two cable sheaths 60 are fixed to the same mounting support 65 and fixed below the anti-sway support 20 by means of the mounting support 65. Further, for different lateral cables 150, a plurality of cable sheaths 60 are arranged, part of the cable sheaths 60 are fixed to the anti-sway support 20, and the other cable sheaths 60 are fixed to the tower drum 10 or the ladder 140 by means of the mounting support 65. As shown in FIG. 19, two cable sheaths 60 are arranged for two different lateral cables 150, one of the cable sheaths 60 is fixed to the anti-sway support 20, and the other cable sheath 60 is fixed below the anti-sway support 20 by means of the mounting support 65. As shown in FIG. 21, a plurality of cable sheaths 60 are arranged for different lateral cables 150, one of the cable sheaths 60 is fixed to the anti-sway support 20, and the other cable sheaths 60 are fixed below the anti-sway support 20 by means of the mounting support 65 and are arranged at intervals along the height direction of the tower drum 10.

[0081] The embodiment of the present application also provides a wind turbine comprising the wind turbine tower drum lifting system as described above.

[0082] The wind turbine can adopt a ladder guide hoist or a steel wire rope guide hoist. During the lifting movement of the hoist 40, the safety steel wire rope 110 and the traction steel wire rope 120 are prevented from being wound or wound around other accessories in the tower drum 10 by means of the anti-sway rod 30, the stability of the hoist 40 operation is improved, and the maintenance frequency is reduced.

[0083] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; and although the present application has been described in detail with reference to the foregoing embodiments, it should be appreciated by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

A fan tower lifting system characterized by The wind turbine tower lifting system comprises a tower, a swing-preventing support, a swing-preventing rod and an elevator, the swing-preventing support is fixed to the inner wall of the tower to form an avoiding passage for the elevator to pass through, the swing-preventing rod is provided with two swing-preventing through holes for the safety wire rope and the traction wire rope to pass through, when the elevator is below the swing-preventing support, the swing-preventing rod is arranged on the swing-preventing support, when the elevator moves through the avoiding passage from below the swing-preventing support to above the swing-preventing support, the swing-preventing rod can be arranged on the top of the elevator and run with the elevator. The top of the elevator is provided with a mounting through slot, when the swing-preventing rod is arranged on the top of the elevator, the swing-preventing rod is accommodated in the mounting through slot to restrict the radial movement freedom of the swing-preventing rod. The fan tower lifting system according to claim 1, wherein One of the elevator and the swing-preventing rod is provided with a limiting slot, and the other is provided with a limiting part, when the swing-preventing rod is arranged on the top of the elevator, the limiting part is accommodated in the limiting slot to restrict the axial movement freedom of the swing-preventing rod. The fan tower lifting system according to claim 1 or 2, characterized in that The swing-preventing rod is fixedly provided with two limiting guide plates, the two limiting guide plates cooperatively form the limiting part, the top of the elevator is provided with two guide surfaces, the two guide surfaces are oppositely arranged to form the limiting slot, when the swing-preventing rod is arranged on the top of the elevator, the two limiting guide plates are arranged in close contact with the two guide surfaces one by one. The fan tower lifting system according to claim 3, characterized in that The swing-preventing support comprises a support body and two pin seats, the two pin seats are arranged on the opposite sides of the support body, each pin seat is provided with a directional through slot, the extending direction of the directional through slot is consistent with the lifting direction of the elevator, and the two ends of the swing-preventing rod are accommodated in the corresponding directional through slots one by one. The fan tower lifting system according to claim 1, wherein There are a plurality of swing-preventing rods, and the plurality of swing-preventing rods are arranged at intervals along the height direction of the tower. The fan tower lifting system according to claim 1, wherein The wind turbine tower lifting system further comprises a cable sheath, the cable sheath is fixed to the tower, the elevator is provided with a cutter, the side cable of the elevator is connected with the cutter and has a gap with the outer wall of the elevator, as the elevator goes up, the cutter pushes away the cable sheath, so that the side cable can enter the cable sheath; The fan tower lifting system according to claim 1, wherein, as the elevator goes down, the cutter opens the cable sheath, so that the side cable can move out of the cable sheath. The cable sheath comprises a mounting seat, a first clamping block and a second clamping block, the first clamping block, the second clamping block and the mounting seat are connected to form a constraint hole, the mounting seat is fixed to the tower, the first end of the first clamping block and the first end of the second clamping block are fixed to the mounting seat, and the second end of the first clamping block and the second end of the second clamping block are arranged in a stacked manner, as the elevator goes up and down, the cutter can separate the first clamping block and the second clamping block, so that the side cable can enter or exit the constraint hole. A plurality of cable sheaths for different side cables are arranged at intervals along the height direction of the tower. The fan tower lifting system according to claim 7, wherein The wind turbine tower lifting system comprises the wind turbine tower lifting system according to any one of claims 1 to 9. The fan tower lifting system according to claim 7, wherein ​ A wind turbine, characterized in that ​

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