CN111943044B

CN111943044B - Traction device for assisting hoisting of fan

Info

Publication number: CN111943044B
Application number: CN202010574198.XA
Authority: CN
Inventors: 毛炳坤; 霍小剑; 覃刚; 徐潇; 王恒智
Original assignee: Wuhan Marine Machinery Plant Co Ltd
Current assignee: Wuhan Marine Machinery Plant Co Ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2022-11-22
Anticipated expiration: 2040-06-22
Also published as: CN111943044A

Abstract

The utility model provides a draw gear that supplementary fan lifted by crane belongs to hoist technical field. The fixed piles in the two traction units are opposite to the arm support of the crane and have a certain distance with the arm support of the crane. The traction sliding frame sleeved on the tension rope moves along the tension rope, the position of a heavy object traction rope connected to the traction sliding frame is adjusted, and the position of a blade which is lifted by the crane and connected with the second end of the heavy object traction rope is adjusted. The adjustment of the position of the traction carriage relative to the tensioning rope is achieved by a wire rope of a hoisting winch arranged at the first end of the spud pile. In the process that the blade is lifted by the crane, the heavy object traction ropes in the two traction units and the steel wire rope of the crane for lifting the blade form a herringbone, so that the blade shaking is reduced. And the heavy object hauling rope applies acting force far away from the crane arm support to the blade, so that the possibility that the blade impacts the arm support of the crane is reduced, and the safety of the blade in the hoisting process is improved.

Description

Traction device for assisting hoisting of fan

Technical Field

The invention relates to the technical field of cranes, in particular to a traction device for assisting a fan in hoisting.

Background

An offshore wind turbine is also called an offshore wind turbine, is a power machine for converting wind energy into mechanical work, and is also a common power generation device. The offshore wind turbine at least comprises a tower and blades, and the blades need to be detached from the tower through a crane or lifted to the tower for installation.

Since offshore wind turbines are usually arranged offshore and the crane is influenced by the wind when lifting the blade, a lifting winch is usually arranged on the lifting device. When the lifting equipment lifts the blade, a steel wire rope of a lifting winch on the lifting equipment can be connected to the blade, so that the swinging of the blade is reduced.

But the direction of the acting force that the cable-stabilized winch applyed on the blade is towards the hoist, though can reduce the rock that the hoist can appear at the in-process that promotes the blade to a certain extent, the blade also produces the striking with the hoist easily, and the security of blade in the lifting process is not high enough.

Disclosure of Invention

The embodiment of the invention provides a traction device for assisting a fan to lift, which can improve the safety of blades of an offshore wind driven generator in the lifting process. The technical scheme is as follows:

the embodiment of the invention provides a traction device for assisting a fan to lift, which comprises two traction units arranged at intervals, wherein each traction unit comprises a fixed pile, a tension rope, a traction sliding frame, a lifting winch and a weight traction rope, the first end of the tension rope is hinged with the first end of the fixed pile, the second end of the tension rope is arranged at the second end of the fixed pile, the traction sliding frame is sleeved on the tension rope in a sliding manner along the length direction of the tension rope, the traction sliding frame is hinged with the first end of the weight traction rope, the second end of the weight traction rope is used for being connected with a weight, the lifting winch is arranged at the first end of the fixed pile, one end of a steel wire rope of the lifting winch is hinged with the traction sliding frame,

the fixing piles in the two traction units are arranged in parallel at intervals.

Optionally, the traction sliding frame further comprises an annular support plate, the annular support plate is connected to the installation box, and the annular support plate and the rotating bearing are coaxially fixed.

Optionally, the inner diameter of the annular support plate is smaller than the inner diameter of the inner ring.

Optionally, the traction carriage further comprises a first pulley rotatably disposed within the mounting box, a first annular groove coaxial with the peripheral wall of the first pulley, and the tension rope is located within the first annular groove.

Optionally, the traction carriage further comprises a second pulley having an axis parallel to the axis of the first pulley, the second pulley being rotatably disposed within the mounting box, and the second pulley being located on both sides of the tensioning rope with the first pulley, the peripheral wall of the second pulley having a coaxial second annular groove, the tensioning rope being located within the second annular groove.

Optionally, the traction unit still includes the telescoping cylinder and is connected the rope, the telescoping cylinder with the spud pile interval sets up, the piston end of telescoping cylinder with the one end of being connected the rope is articulated, the other end of being connected the rope with the second end of tensioning rope is fixed.

Optionally, the traction unit further comprises a tensioning rope guide pulley rotatably disposed on the second end of the spud pile, the tensioning rope guide pulley being located between the traction carriage and the telescoping cylinder.

Optionally, the traction unit further includes a wire rope guide pulley, the wire rope guide pulley is disposed at the first end of the fixing pile, and the wire rope guide pulley is located between the hoisting winch and the traction carriage.

Optionally, the spud pile includes two mounting panels and a plurality of bracing pieces, a plurality of bracing pieces are parallel to each other the interval set up, two mounting panels are connected perpendicularly respectively at the both ends of a plurality of bracing pieces.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

when the crane lifts the blade, two traction units in the traction device for assisting the fan to lift can be placed on a platform where the crane is located at intervals, and each traction unit comprises a fixing pile, a tensioning rope, a traction sliding frame, a lifting winch and a heavy object traction rope. The fixed piles in the two traction units are arranged on the platform to play a role in positioning and supporting, and the fixed piles in the two traction units are opposite to the arm support of the crane and have a certain distance with the arm support of the crane. The first end of the tensioning rope in every traction unit is articulated with the first end of spud pile in this traction unit, and the second end setting of tensioning rope is held at the second of spud pile, pulls the carriage and overlaps along the length direction slidable of tensioning rope on the tensioning rope, pulls the carriage and articulates with the first end of heavy object haulage rope, and the second end of heavy object haulage rope is used for being connected for the blade in this disclosure with the heavy object here of heavy object. The traction sliding frame can move along the length direction of the tensioning rope to adjust the position of the weight traction rope connected to the traction sliding frame, and then the position of the blade which is lifted by the crane and connected with the second end of the weight traction rope is adjusted. The adjustment of the position of the traction sliding frame relative to the tensioning rope is realized through a steel wire rope of a hoisting winch arranged at the first end of the fixing pile, and the steel wire rope of the hoisting winch connected with one end of the traction sliding frame can drive the traction sliding frame to move. In the process that the blade is continuously lifted by the crane, certain specific distance is kept between the fixing piles in the two traction units and the crane, the heavy object traction ropes in the two traction units and the steel wire rope of the crane for lifting the blade can form a herringbone shape, the shaking which possibly occurs when the blade is lifted is reduced, and the heavy object traction ropes in the two traction units can apply acting force far away from the crane arm support for the blade, the possibility that the blade impacts the arm support of the crane is reduced, and the safety of the blade in the lifting process is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below,

FIG. 1 is a schematic structural diagram of a traction device for assisting a fan to hoist according to an embodiment of the present invention;

FIG. 2 is a schematic view of a use state of a traction device for assisting a fan to hoist according to an embodiment of the present invention;

FIG. 3 is a top view of a traction device for assisting in hoisting a wind turbine provided by embodiments of the present disclosure;

FIG. 4 is a schematic illustration of a traction carriage according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of a vane position state provided by an embodiment of the present disclosure;

FIG. 6 is a schematic structural view of a rotary bearing provided by an embodiment of the present disclosure;

FIG. 7 is a schematic view of the connection of the annular support plate to the mounting case provided by the disclosed embodiment;

FIG. 8 is a schematic structural diagram of an installation box provided by the embodiment of the disclosure;

FIG. 9 is a schematic view of the mounting box and the first pulley provided by the disclosed embodiment;

fig. 10 is a schematic view of the connection of the second end of the spud pile provided by the disclosed embodiment;

fig. 11 is a schematic structural diagram of a spud pile provided by an embodiment of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a traction device for assisting a fan crane according to an embodiment of the present invention, and as can be seen from fig. 1, the traction device for assisting a fan crane may include two traction units 1 (not shown in fig. 1) arranged at intervals, where each traction unit 1 includes a spud pile 11, a tension rope 12, a traction carriage 13, a hoisting winch 14, and a weight traction rope 15. The first end of tensioning rope 12 is articulated with the first end of spud pile 11, the second end setting of tensioning rope 12 is held at the second of spud pile 11, pull carriage 13 and overlap the cover on tensioning rope 12 along the length direction slidable of tensioning rope 12, pull carriage 13 and the first end of heavy object haulage rope 15 articulated, the second end of heavy object haulage rope 15 is used for being connected with the heavy object, lifting winch 14 sets up on the first of spud pile 11, lifting winch 14's wire rope 141's one end and pull carriage 13 articulated. The spuds 11 in the two traction units 1 are arranged in parallel at a spacing.

When the crane 100 lifts the blade 200, two traction units 1 in a traction device for assisting a fan to lift can be placed on a platform 300 where the crane 100 is located at intervals, and each traction unit 1 comprises a fixing pile 11, a tensioning rope 12, a traction sliding frame 13, a lifting winch 14 and a heavy object traction rope 15. The fixing piles 11 in the two traction units 1 are both arranged on the platform 300 to play a role in positioning and supporting, and the fixing piles 11 in the two traction units 1 are both over against the arm support of the crane 100 and have a certain distance with the arm support of the crane 100. The first end of the tension rope 12 in each traction unit 1 is hinged with the first end of the fixing pile 11 in the traction unit 1, the second end of the tension rope 12 is arranged at the second end of the fixing pile 11, the traction sliding frame 13 is slidably sleeved on the tension rope 12 along the length direction of the tension rope 12, the traction sliding frame 13 is hinged with the first end of the weight traction rope 15, and the second end of the weight traction rope 15 is used for being connected with the weight, namely the blade 200 in the present disclosure. The traction carriage 13 can be moved along the length of the tension rope 12 to adjust the position of the weight traction rope 15 connected to the traction carriage 13, and thus the position of the blade 200 lifted by the crane 100 and connected to the second end of the weight traction rope 15. The adjustment of the position of the traction carriage 13 relative to the tensioning rope 12 is realized by a wire rope 141 of the hoisting winch 14 arranged at the first end of the spud pile 11, and the wire rope 141 of the hoisting winch 14 connected to one end of the traction carriage 13 can drive the traction carriage 13 to move. In the process that the blade 200 is continuously lifted by the crane 100, a certain specific distance is reserved between the fixed piles 11 in the two traction units 1 and the crane 100, the weight traction ropes 15 in the two traction units 1 and the steel wire rope 141 of the crane 100 for lifting the blade 200 can form a herringbone shape, so that the shaking which may occur when the blade 200 is lifted is reduced, the weight traction ropes 15 in the two traction units 1 can apply acting force far away from the arm support of the crane 100 to the blade 200, the possibility that the blade 200 impacts the arm support of the crane 100 is reduced, and the safety of the blade 200 in the lifting process is improved.

In the present disclosure, the weight of the blade 200 that the crane 100 needs to bear is partially transferred to the spud pile 11 through the weight hauling cable 15, and the crane 100 does not need to bear all the weight of the blade 200 and the force caused by the wind force acting on the blade 200. The specification and model requirements of the crane 100 required to lift the blade 200 may also be reduced, and costs may also be reduced to a certain extent.

When the wind power on the blade 200 is too large, the position of the crane 100 can be adjusted, or the length of the heavy object traction rope 15 is adjusted, so that the blade 200 cannot collide with the arm support of the crane 100 in the whole lifting process, and the blade has strong adaptability to different offshore working conditions.

It should be noted that, in the implementation manner provided by the present disclosure, the traction device may be used to assist the lifting of the blade 200, but in other implementation manners provided by the present disclosure, the traction device may also be applied to other processes greatly affected by external force, such as the lifting process of a quay container, and the present disclosure does not limit this.

In practical applications, the fixing pile 11 is usually disposed on the platform 300, and the length direction of the fixing pile 11 is the gravity direction. The length direction of the tensioning ropes 12 with two ends respectively arranged at two ends of the fixing pile 11 is also the gravity direction.

As can be seen with reference to fig. 1, the traction unit 1 may further comprise a wire rope guide pulley 16, the wire rope guide pulley 16 being arranged at a first end of the spud 11, the wire rope guide pulley 16 being located between the hoisting winch 14 and the traction carriage 13.

The wire rope guide pulley 16 can guide the wire rope 141 of the hoisting winch 14, so that the wire rope 141 of the hoisting winch 14 is prevented from randomly shaking when being subjected to the acting force of the traction sliding frame 13, rope skipping relative to the wire rope guide pulley 16 is avoided, and the wire rope 141 of the hoisting winch 14 can stably pull the traction sliding frame 13.

For convenience of understanding, fig. 2 and 3 are provided herein, and fig. 2 is a schematic view illustrating a use state of the traction apparatus for assisting the hoisting of a wind turbine according to an embodiment of the present invention, in which a spud 11 is disposed opposite to a crane 11, the crane 100 is placed on a platform 300, the crane 100 lifts a blade 200, and a weight hauling cable 15 is connected to the blade 100.

Fig. 3 is a top view of the traction device for assisting the hoisting of the wind turbine provided in the embodiment of the present disclosure, and as can be seen from fig. 3, the fixing piles 11 in the two traction units 1 are arranged at intervals, and both the fixing piles 11 in the two traction units 1 can be directly opposite to the boom of the crane 100. And the two spuds 11 and the crane 100 may be distributed at three corners of an equilateral triangle.

At this time, the weight pulling ropes 15 in the two pulling units 1 can more evenly disperse the acting force on the blade 200, and the weight pulling ropes 15 in the two pulling units 1 can also balance the mutual acting force, so as to reduce the shake generated by the blade 200.

Fig. 4 is a schematic structural diagram of the traction carriage according to the embodiment of the present disclosure, and as can be known from fig. 4, the traction carriage 13 includes a mounting box 131 and a rotating bearing 132, the mounting box 131 is connected to an outer ring 1321 of the rotating bearing 132, an inner ring 1322 of the rotating bearing 132 is hinged to one end of a steel wire rope 141 of the hoisting winch 14, the mounting box 131 has a through hole 1311, both the through hole 1311 and the rotating bearing 132 are sleeved on the tension rope 12, and the mounting box 131 is connected to a first end of the weight traction rope 15.

The installation box 131 in the traction sliding frame 13 is connected with the outer ring 1321 of the rotating bearing 132 in the traction sliding frame 13, the inner ring 1322 of the rotating bearing 132 is hinged with one end of the steel wire rope 141 of the hoisting winch 14, the installation box 131 and the rotating bearing 132 can be integrally sleeved on the tensioning rope 12, the installation box 131 is connected with the first end of the weight traction rope 15, and the second end of the weight traction rope 15 can be connected with the blade 200. When the blade 200 is lifted by the crane 100, if the blade 200 is shaken by wind force, the weight pulling rope 15 is driven to move, the weight pulling rope 15 drives the installation box 131 to rotate relative to the tensioning rope 12, the installation box 131 rotates together with the outer ring 1321 of the rotating bearing 132, the inner ring 1322 of the rotating bearing 132 rotates relative to the inner ring 1322 of the rotating bearing 132, and the steel cable 141 of the lifting winch 14 connected with the inner ring 1322 of the rotating bearing 132 is not influenced by rotation. Can guarantee to pull the carriage 13 and be lifted stably and pull by lifting winch 14, the wire rope 141 that lifts winch 14 can not receive the pivoted influence of install bin 131, can go up and down at the in-process that blade 200 position constantly changes and pull carriage 13 to rocking to blade 200 carries out continuous adjustment.

For easy understanding, fig. 5 can be provided here, fig. 5 is a schematic view of a position state of the blade provided by the embodiment of the present disclosure, and referring to fig. 3 and 5, when the position of the blade 200 moves from the state in fig. 3 to the state in fig. 5, the weight traction rope 15 inevitably causes the installation box 131 to rotate relative to the tension rope 12, and the rotation bearing 132 can absorb the rotation generated by the installation box 131, so as to avoid the rotation of the installation box 131 from affecting the lifting and moving of the wire rope 141 of the hoisting winch 14, and ensure that the hoisting winch 14 can always normally lift the traction carriage 13 in the process of the change of the position of the blade 200.

In fig. 3 and 5, the blade 200 is replaced with a clamp for clamping the blade 200, and the blade 200 moves together with the clamp during lifting.

Fig. 6 is a schematic structural diagram of a rotary bearing according to an embodiment of the present disclosure, and referring to fig. 6, it can be seen that the rotary bearing 132 includes an inner ring 1322, an outer ring 1321 and a plurality of balls 1323, a first ball annular groove 1322a is formed on an outer wall of the inner ring 1322 of the rotary bearing 132, a second ball annular groove 1321a is formed on an inner wall of the outer ring 1321 of the rotary bearing 132, the first ball annular groove 1322a and the second ball annular groove 1321a are disposed opposite to each other, cross sections of the first ball annular groove 1322a and the second ball annular groove 1321a are both semicircular, and the plurality of balls 1323 are disposed in a space surrounded by the first ball annular groove 1322a and the second ball annular groove 1321 a.

The rotation bearing 132 is easy to rotate between the inner ring 1322 and the outer ring 1321 of the rotation bearing 132 by adopting the above structure, and the balls 1323 are matched with the first ball annular groove 1322a and the second ball annular groove 1321a, so that the inner ring 1322 and the outer ring 1321 are prevented from moving relatively and separating from each other in the gravity direction to a certain extent, and the stable use of the rotation bearing 132 is ensured.

Referring to fig. 6, the rotary bearing 132 may further include an annular connecting plate 1324, the annular connecting plate 1324 is coaxially connected to an end of the inner ring 1322 away from the installation casing 131 and connected to the cable 141 of the hoisting winch 14.

The annular connection plate 1324 may shift the connection point of the rotary bearing 132 and the cable 141 of the hoisting winch 14 from the inner ring 1322, so as to ensure that the mutual rotation between the inner ring 1322 and the outer ring 1321 is stably achieved.

Alternatively, the inner diameter of annular connecting plate 1324 may be larger than the inner diameter of inner race 1322.

The inner diameter of the annular connecting plate 1324 is larger than the inner diameter of the inner ring 1322, so that the contact area between the annular connecting plate 1324 and the wire rope 141 of the hoisting winch 14 can be increased, and the connection between the wire rope 141 of the hoisting winch 14 and the rotating bearing 132 as a whole can be conveniently realized.

Referring to fig. 6, the traction carriage 13 may further include an annular support plate 17, the annular support plate 17 is connected to the mounting case 131, and the annular support plate 17 is coaxially fixed with the rotation bearing 132.

The annular support plate 17 can shift the connection point of the rotary bearing 132 and the mounting case 131 from the outer ring 1321, so as to ensure that the mutual rotation between the inner ring 1322 and the outer ring 1321 can be stably realized.

Illustratively, the annular support plate 17 is fixed to the mounting case 131 at a face thereof close to the mounting case 131, and the annular support plate 17 has an inner diameter smaller than that of the inner ring 1322.

The inner diameter of the annular support plate 17 is smaller than the inner diameter of the inner ring 1322, the annular support plate 17 can support the inner ring 1322, and the inner ring 1322 can be prevented from being separated from the outer ring 1321 under the action of gravity.

Illustratively, the distance between the inner race 1322 and the annular support plate 17 in the axial direction of the rotary bearing 132 is not zero.

The distance between the inner ring 1322 and the annular support plate 17 is not zero, which can prevent the inner ring 1322 and the annular support plate 17 from directly generating friction, ensure that the inner ring 1322 can stably rotate relative to the outer ring 1321, and prevent the inner ring 1322 from sliding off relative to the outer ring 1321 by the annular support plate 17.

Illustratively, the annular connecting plate 1324 and the inner ring 1322, and the annular supporting plate 17 and the outer ring 1321 are bolted together. Easy to be disassembled and connected.

Fig. 7 is a schematic diagram illustrating a connection between the annular support plate and the installation box according to an embodiment of the disclosure, and referring to fig. 7, the traction carriage 13 may further include a plurality of ribs 133, and the plurality of ribs 133 are disposed between the annular support plate 17 and the installation box 131. The coupling strength between the annular support plate 17 and the mounting case 131 is enhanced.

Fig. 8 is a schematic structural view of the installation box provided by the embodiment of the disclosure, and as can be seen from fig. 8, the traction carriage 13 may further include a first pulley 134, the first pulley 134 is rotatably disposed in the installation box 131, a first annular groove 1341 is formed on an outer peripheral wall of the first pulley 134, and the tension rope 12 is located in the first annular groove 1341.

Have coaxial first ring channel 1341 on the periphery wall of first pulley 134 in the install bin 131, tensioning rope 12 is located first ring channel 1341, first ring channel 1341 on first pulley 134 and the first pulley 134 can play the guide effect to tensioning rope 12, install bin 131 is being driven by heavy object haulage rope 15, tensioning rope 12 who passes install bin 131 can be guided by first pulley 134, avoid the condition that tensioning rope 12 rocks at will relative install bin 131 to appear, guarantee install bin 131 and tensioning rope 12 to play the effect that reduces to rock to heavy object haulage rope 15.

Referring to fig. 8, the traction carriage 13 may further include a second pulley 135 having an axis parallel to the axis of the first pulley 134, the second pulley 135 being rotatably disposed in the mounting case 131, and the second pulley 135 and the first pulley 134 being located on both sides of the tension rope 12, the second pulley 135 having a coaxial second annular groove 1351 on its outer peripheral wall, and the tension rope 12 being located in the second annular groove 1351.

Second pulley 135 can cooperate with first pulley 134, can carry out good direction to tensioning rope 12, also can avoid tensioning rope 12 the condition of skipping rope to appear, guarantees that the relative tensioning rope 12 of installation box 131 can move along the length direction of tensioning rope 12 steadily.

Optionally, the axial direction of the first pulley 134 is not on the same horizontal plane as the axis of the second pulley 135. The first pulley 134 and the second pulley 135 now guide the tension rope 12 better and the space is more reasonable.

Referring to fig. 8, a lightening hole 131a may be further formed in the mounting case 131.

The lightening holes 131a can reduce the weight of the mounting box 131 so that the hoisting winch 14 can perform traction on the whole traction carriage 13.

Fig. 9 is a schematic view of the mounting box and the first pulley provided in the embodiment of the present disclosure, and referring to fig. 9, the first pulley 134 may include a rolling ring 134a and a supporting shaft 134b, the rolling ring 134a is roll-sleeved on the supporting shaft 134b, and the supporting shaft 134b is connected to the mounting box 131. The coupling of the first pulley 134 to the mounting case 131 is easily accomplished.

Exemplarily, the support shaft 134b may be a pin shaft. Facilitating the connection with the installation case 131.

Fig. 10 is a schematic view of the connection condition of the second end of the fixing pile provided by the embodiment of the present disclosure, and referring to fig. 10, the second end of the fixing pile 11 is directly connected to the platform 300.

Referring to fig. 10, the traction unit 1 further includes a telescopic cylinder 18 and a connecting rope 19, the telescopic cylinder 18 is disposed at an interval with the fixed pile 11, a piston end of the telescopic cylinder 18 is hinged to one end of the connecting rope 19, and the other end of the connecting rope 19 is fixed to a second end of the tensioning rope 12.

The piston end of telescoping cylinder 18 is articulated with the one end of being connected rope 19, and the other end of connecting rope 19 is fixed with the second end of tensioning rope 12, can stretch out and draw back telescoping cylinder 18 to adjust the position of tensioning rope 12, exert the effort at the middle part of tensioning rope 12 with adjusting the install bin 131, reduce tensioning rope 12 and receive the effect of install bin 131 and the possibility of damaging.

Alternatively, the telescopic cylinder 18 may be provided on the platform 300 on which the spud pile 11 is located. The telescopic cylinder 18 can be conveniently installed, and the tensioning rope 12 can be conveniently adjusted by the telescopic cylinder 18 and the connecting rope 19.

The telescopic cylinder 18, the tension rope guide pulley 19, and the tension rope 12 are disposed in a coplanar manner. The stable transmission of the acting force among the telescopic cylinder 18, the tensioning rope guide pulley 19 and the tensioning rope 12 can be ensured.

Illustratively, the telescoping cylinder 18 and the connecting cord 19 are both vertically tensioned along the length of the cord 12.

The telescopic cylinder 18 and the connecting rope 19 are both vertical to the length direction of the tensioning rope 12, so that the telescopic adjustment of the telescopic cylinder 18 is facilitated.

Alternatively, the telescoping cylinder 18 may be a telescoping cylinder or a telescoping air cylinder. The telescoping is easy to realize. The present disclosure is not so limited.

Illustratively, the traction unit 1 further includes a fixing plate 20, the fixing plate 20 has a mounting hole 201, the fixing plate 20 is fixed on the platform 300, a reinforcing rib plate 202 is present between the fixing plate 20 and the platform 300, and the telescopic cylinder 18 is inserted and fixed in the mounting hole 201. The telescopic cylinder 18 is convenient to mount and fix.

As can be seen with reference to fig. 1, the traction unit 1 may further comprise a tension rope guide pulley 21, the tension rope guide pulley 21 being rotatably arranged on the second end of the spud 11, the tension rope guide pulley 21 being located between the traction carriage 13 and the telescopic cylinder 18.

Tensioning rope guide pulley 21 can avoid tensioning rope 12 to appear rocking of position at will, guarantees the stable use of tensioning rope 12.

For example, the axis of the tension rope guide pulley 21 and the axis of the wire rope guide pulley 16 may be parallel to each other.

The axis of the tension rope guide pulley 21 is parallel to the axis of the wire rope guide pulley 16, so that the acting force applied to the tension rope 12 and the wire rope 141 of the hoisting winch 14 can be kept on the same plane, and the rotation of the tension rope 12 and the wire rope 141 caused by other torques can be avoided.

Fig. 11 is a schematic structural diagram of a fixing pile provided in an embodiment of the present disclosure, and as can be seen from fig. 11, the fixing pile 11 includes two mounting plates 111 and a plurality of supporting rods 112, the supporting rods 112 are arranged in parallel and at intervals, and the two mounting plates 111 are respectively vertically connected to two ends of the supporting rods 112.

With the adoption of the arrangement of the fixing pile 11, the fixing pile 11 has better strength and can be installed with other structures through the installation plate 111.

The hoisting winch 14 may be mounted on one mounting plate 111 of the spud 11, the first end of the tensioning line 12 may be hinged on the same mounting plate 111, and the other mounting plate 111 of the spud 11 may be used for fastening with the platform 300.

Optionally, in one implementation provided by the present disclosure, the second end of spud 11 may be welded with platform 300. And the stable use of the fixing pile 11 is ensured.

Alternatively, spud pile 11 may include 3 support rods 112, and one end of each of the 3 support rods 112 is located at three corners of an isosceles triangle. The strength of the spud pile 11 is good and the cost is low.

In other implementations provided by the present disclosure, the number of the support rods 112 in the fixing pile 11 may also be set to 4, 6, 7 or other numbers, which is not limited by the present disclosure.

Optionally, the spud pile 11 further comprises a plurality of cross bars 113, and both ends of each cross bar 113 are connected to two support bars 112 respectively.

The cross bar 113 in the fixing pile 11 can enhance the connection strength between the support bars 112, and ensure the stable use of the fixing pile 11.

Although the present invention has been described in connection with the above embodiments, it is to be understood that the present invention is not limited to the above embodiments, and modifications and equivalents thereof may be made by those skilled in the art without departing from the scope of the present invention.

Claims

1. The traction device for hoisting the auxiliary fan is characterized by comprising two traction units (1) arranged at intervals, wherein each traction unit (1) comprises a fixing pile (11), a tensioning rope (12), a traction sliding frame (13), a lifting winch (14) and a heavy object traction rope (15), the first end of the tensioning rope (12) is hinged to the first end of the fixing pile (11), the second end of the tensioning rope (12) is arranged at the second end of the fixing pile (11), the traction sliding frame (13) is slidably sleeved on the tensioning rope (12) along the length direction of the tensioning rope (12), the traction sliding frame (13) is hinged to the first end of the heavy object traction rope (15), the second end of the heavy object traction rope (15) is used for being connected with a heavy object, the lifting winch (14) is arranged at the first end of the fixing pile (11), one end of a steel wire rope (141) of the lifting winch (14) is hinged to the traction sliding frame (13),

in two traction unit (1) spud pile (11) parallel interval sets up, pull carriage (13) including install bin (131) and rolling bearing (132), install bin (131) with outer lane (1321) of rolling bearing (132) are connected, inner circle (1322) of rolling bearing (132) with the one end of wire rope (141) of hoisting winch (14) is articulated, through-hole (1311) have on install bin (131), through-hole (1311) with rolling bearing (132) are all established on tensioning rope (12), install bin (131) with the first end of heavy object haulage rope (15) is connected.

2. The traction device for assisting fan hoisting according to claim 1, wherein the traction carriage (13) further comprises an annular support plate (17), the annular support plate (17) is connected to the installation box (131), and the annular support plate (17) is coaxially fixed with the rotating bearing (132).

3. The traction apparatus for assisting wind turbine lifting according to claim 2, wherein the inner diameter of the annular support plate (17) is smaller than the inner diameter of the inner ring (1322).

4. The traction device for assisting fan hoisting according to claim 1, wherein the traction carriage (13) further comprises a first pulley (134), the first pulley (134) is rotatably disposed in the mounting box (131), the first pulley (134) has a coaxial first annular groove (1341) on the outer peripheral wall, and the tension rope (12) is located in the first annular groove (1341).

5. The traction device for auxiliary fan hoisting according to claim 4, wherein the traction carriage (13) further comprises a second pulley (135) having an axis parallel to the axis of the first pulley (134), the second pulley (135) being rotatably disposed in the mounting box (131), and the second pulley (135) and the first pulley (134) being located on both sides of the tension rope (12), the second pulley (135) having a second coaxial annular groove (1351) on its peripheral wall, the tension rope (12) being located in the second annular groove (1351).

6. The traction device for assisting fan hoisting according to any one of claims 1 to 5, wherein the traction unit (1) further comprises a telescopic cylinder (18) and a connecting rope (19), the telescopic cylinder (18) and the fixing pile (11) are arranged at intervals, a piston end of the telescopic cylinder (18) is hinged to one end of the connecting rope (19), and the other end of the connecting rope (19) is fixed to a second end of the tensioning rope (12).

7. Traction means to assist fan hoisting according to claim 6, characterized in that the traction unit (1) further comprises a tensioning rope guide pulley (19), said tensioning rope guide pulley (19) being rotatably arranged on the second end of the spud pile (11), said tensioning rope guide pulley (19) being located between the traction carriage (13) and the telescoping cylinder (17).

8. The traction apparatus for assisting wind turbine hoisting according to any one of claims 1 to 5, wherein the traction unit (1) further comprises a wire rope guide pulley (16), the wire rope guide pulley (16) is disposed at the first end of the spud pile (11), and the wire rope guide pulley (16) is located between the hoisting winch (14) and the traction carriage (13).

9. The traction device for assisting fan hoisting according to any one of claims 1 to 5, wherein the spud pile (11) comprises two mounting plates (111) and a plurality of support rods (112), the support rods (112) are arranged in parallel and at intervals, and the two mounting plates (111) are respectively vertically connected to two ends of the support rods (112).