CN103754772B - The part replacement device of wind-driven generator, system and method - Google Patents

Abstract

The invention provides a component replacement device for a wind power generator, the component replacement device includes a base and a hoisting mechanism arranged on the base, a traction lifting part is arranged on the base, and the traction lifting part and the The first traction connection part at a predetermined position on the tower is connected through a traction connection body, and drives the component replacement device to move upward along the tower in a traction manner. In addition, the present invention also provides a component replacement system and method for a wind power generator. Through the component replacement device, system and method of the wind power generator of the present invention, the lifting mechanism of the component replacement device is simpler, the manufacturing cost is lowered, and the dependence on large lifting equipment is reduced in the process of lifting the component replacement device , reducing installation costs.

Description

Device, system and method for component replacement of wind power generator

technical field

The present invention relates to a component replacement device, system and method, in particular to a component replacement device, system and method of a wind power generator.

Background technique

In the prior art, cranes are mainly used when replacing components of wind power generators, and the economic cost is very high, and the construction in some special environments (such as mountainous areas and seas, etc.) is limited.

As shown in FIG. 1 , it is a structural diagram of a component replacement device for a wind power generator in the prior art. The component replacement device is generally divided into a crane 200 and a climbing structure 100 . The crane 200 is a single-column full-slewing crane, which is welded to the upper part 101 of the climbing structure 100 . The climbing structure 100 is divided into upper and lower parts, the upper part 101 is connected with the crane 200, and a hydraulic device and a counterweight 108 are arranged above the upper part 101; the lower part 102 and the upper part 101 are connected through a hydraulic cylinder 109. The overall structure is climbed to the top of the tower through the expansion and contraction of the hydraulic cylinder 109, and the equipment is lifted by the crane 200 and lowered to the ship.

The disadvantages of the parts replacement device in the prior art are: the structure of the hydraulic climbing mechanism is complex and the cost is high.

Contents of the invention

The object of the present invention is to provide a component replacement device, system and method for a wind power generator, so that the lifting mechanism used to lift the component replacement device can be simplified, the manufacturing cost can be reduced, and in the process of lifting the component replacement device, the need for large-scale Reliance on lifting equipment reduces installation costs.

In order to achieve the above object, the present invention provides a component replacement device for wind power generators, the component replacement device includes a base and a hoisting mechanism arranged on the base, a traction lifting part is arranged on the base, the traction lifting part It is connected with the first traction connection part provided at a predetermined position on the tower through a traction connection body, and drives the component replacement device to move upward along the tower in a traction manner.

The present invention also provides a component replacement system for a wind power generator, which includes a component replacement device and a hoisting auxiliary part fixed on the tower, and the first traction connection part is arranged on the hoisting auxiliary part.

The present invention further provides a component replacement system for a wind power generator, a component replacement device and a hoisting auxiliary part fixed on the tower, the first traction connection part is arranged on the hoisting auxiliary part, and the hoisting auxiliary part The fixing hole is also provided on the top.

The present invention further provides a method for replacing parts of a wind power generator of a wind power generator. The part replacement device used in the part replacement method includes a base and a hoisting mechanism arranged on the base, and a traction and lifting part is arranged on the base , the part replacement method includes:

Assembly parts replacement device;

connecting the traction connecting body drawn from the traction lifting part of the component replacement device to the first traction connecting part provided on the lifting auxiliary part;

The traction lifting part drives the component replacement device to move upward along the tower to a predetermined position by traction;

The component replacement device is fixed at the predetermined position, and a component replacement operation is started.

Through the component replacement device, system and method of the wind power generator of the present invention, the lifting mechanism of the component replacement device is simpler, the manufacturing cost is lowered, and the dependence on large lifting equipment is reduced in the process of lifting the component replacement device , reducing installation costs.

Description of drawings

The above and other objects and features of the present invention will become clearer through the following description in conjunction with the accompanying drawings, wherein:

Fig. 1 is a structural schematic diagram of a component replacement device of a wind power generator in the prior art;

FIG. 2 is a schematic diagram of the overall structure of a component replacement device for a wind power generator according to Embodiment 1 of the present invention;

FIG. 3 is a first application schematic diagram of a component replacement device for a wind power generator according to Embodiment 1 of the present invention;

FIG. 4 is a second application schematic diagram of the component replacement device for wind power generators according to Embodiment 1 of the present invention;

FIG. 5 is a schematic diagram of the overall structure of the base of the component replacement device for wind power generators according to Embodiment 1 of the present invention;

Fig. 6 is a first disassembled structure diagram of the base of the component replacement device for wind power generators according to Embodiment 1 of the present invention;

Fig. 7 is a second disassembled structure schematic diagram of the base of the component replacement device of the wind power generator according to the first embodiment of the present invention;

Fig. 8 is a first structural schematic diagram of the hydraulic telescopic part of the component replacement device of the wind power generator according to the first embodiment of the present invention;

Fig. 9 is a second structural schematic diagram of the hydraulic telescopic part of the component replacement device of the wind power generator according to the first embodiment of the present invention;

Fig. 10 is a partial structural schematic diagram of the hoisting mechanism of the component replacement device of the wind power generator according to Embodiment 1 of the present invention;

Fig. 11 is a first structural schematic diagram of the hoisting auxiliary part of the component replacement system of the wind power generator according to the second embodiment of the present invention;

Fig. 12 is a second structural schematic diagram of the hoisting auxiliary part of the component replacement system of the wind power generator according to the second embodiment of the present invention.

Explanation of reference numbers:

100-climbing structure; 200-crane; 101-upper part; 102-lower part; 108-counterweight; 109-hydraulic cylinder; 1-base; 2-hoisting mechanism; 3-tower; 4; first Traction connection part; 5-traction connection body; 11-traction lifting part; 111-hoist; 112-second traction connection part; 113-tower protection wheel; ;211-docking point; 251-hydraulic support seat; 21-gantry mechanism; 22-hoist; 23-hook; 24-gantry installation support; -first pulley; 412-upper reinforcing ring; 413-lower reinforcing ring; 414-fixing hole; 415-middle ring body; 416-reinforcing rib; 1121-second pulley; ; 1142-connecting rod; 1143-supporting rod.

detailed description

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Embodiment one

This embodiment is an embodiment of a component replacement device for a wind power generator, and the parts replacement device for a wind power generator will be introduced one by one from the following aspects.

(1) Overall structure

The overall structure of the component replacement device of this embodiment will be described below with reference to Figures 2 to 4. As shown in Figure 2 and Figure 3, the component replacement device of the wind power generator in this embodiment includes a base 1 and a hoisting device arranged on the base The mechanism 2 is provided with a traction lifting part 11 on the base, and the traction lifting part 11 is connected with the first traction connection part 4 arranged at a predetermined position on the tower 3 through the traction connection body 5, and drives The component replacement device moves upwards along the tower 3 .

Fig. 3 shows the state of the component replacement device during the pulling up process, while Fig. 4 shows the state after the component replacement device reaches the predetermined position and is fixed.

It can be seen from Fig. 2 to Fig. 4 that, compared with the hydraulic climbing mechanism of the prior art, the lifting mechanism of the component replacement device of this embodiment is simpler, the manufacturing cost is lower, and in the process of lifting the component replacement device , does not require large lifting equipment, and the installation cost is low.

(2) Traction lifting part

Referring to Fig. 2 to Fig. 5, Fig. 5 is a schematic diagram of the overall structure of the base of the component replacement device for wind power generators according to Embodiment 1 of the present invention, which shows the structure of the traction lifting part provided on the base from a top view. The traction lifting part 11 and the traction connecting body 5 are the main components of the lifting part replacement device. The traction lifting part 11 can include a hoist 111 and a second traction connecting part 112 (as shown in FIG. 5 ), and the pulling connecting body 5 can be a pulling wire 5 , more specifically, the traction line 5 can be a steel wire traction line, as shown in Figure 3, the first traction connection part 4 can be specifically the first pulley mechanism 41, the traction line 5 is drawn from the winch 111, and passes through the first pulley mechanism 41, It is fixed on the second traction connection part 112 .

By adopting the combination of pulley mechanism, hoist and wire pulling wire, it is easy to lift the whole part changing device.

Further, the structure shown in FIG. 3 can be adopted, the first pulley mechanism 41 includes a plurality of first pulleys 411 (for example, 2 pulleys are shown in FIG. 3 ), and the second traction connection part 112 includes at least one first pulley. Two pulleys 1121 and a traction line fixed point 1122 (this traction line fixed point can also be a pulley, just it is used as the fixed point of one end of the traction line), the traction line 5 is drawn from the hoist 111, and alternately passes through the first pulley 411 and the second pulley 411 Two pulleys 1121 are fixed on the fixed point 1122 of the traction line. As shown in Figure 3, after the traction line 5 is drawn out from the winch 111, it passes through three pulleys alternately, that is, the two pulleys 411 on the upper part of the tower and a pulley 1121 on the base, and is finally fixed on the pulley as the fixed point 1122 of the traction line. Above, as can be seen from the figure, four traction lines are formed side by side.

Through the combination of multiple pulleys, the traction line can be crossed between the pulleys of the base and the pulleys of the tower, so that the traction force can act on the base in a balanced manner during the lifting process of the component replacement device.

In addition, there may be a plurality of traction lifting parts 11, which are symmetrically arranged on the base, and correspondingly connected with a plurality of the first traction connecting parts 4 . As shown in Figure 2 and Figure 3, the traction and lifting parts 11 are arranged on the left and right symmetrical parts of the base. .

(3) base

As shown in FIG. 2 and FIG. 3 , an opening surrounding the tower can be formed on the base of this embodiment, and there is a gap between the inner wall of the opening and the tower when the replacement device rises along the tower.

Since there is a gap between the inner wall of the opening and the tower, the inner wall of the opening will not come into contact with the surface of the tower during the whole process of rising the replacement mechanism, which can avoid damage to the surface coating of the tower. On the contrary, the climbing mechanism of the prior art will constantly contact the inner wall of the tower with high friction during its climbing process, which will seriously damage the surface coating of the tower. example does not exist.

In addition, as shown in FIG. 5 , a tower protective wheel 113 may also be provided on the inner wall of the opening, and the tower protective wheel 113 may be a rubber wheel. During the rising process of the replacement mechanism, the tower protection wheel 113 contacts the surface of the tower, which can improve the stability during the lifting process, and will not damage the surface coating of the tower.

In addition, after the replacement device is lifted to a predetermined position, it can be fixed in the following manner: a hydraulic telescopic part 114 can be provided in the inner wall of the opening, and the hydraulic telescopic part 114 is in a contracted state when the part replacement device rises along the tower. When the component replacement device rises to the predetermined position of the tower, the hydraulic telescopic part 114 is switched to the extended state, and the base is fixed on the tower. The fixing method may be directly pressing against, or the hydraulic expansion part 114 may be inserted into a preset hole or the like.

Further, the preferred structure of the hydraulic telescopic part 114 is further described in conjunction with Fig. 8 and Fig. 9. The state shown in Fig. 8 is that the hydraulic telescopic part 114 is in a contracted state, and the state shown in Fig. 9 is that the hydraulic telescopic part 114 is in an extended state. state. As shown in Figure 8 and Figure 9, the hydraulic telescopic part 114 can adopt the following structure: the hydraulic telescopic part 114 includes a hydraulic cylinder 1141 and a telescopic rod connected with the hydraulic cylinder, the hydraulic cylinder is arranged in the base, and the inner wall of the opening is provided with a telescopic During the process of the component replacement device rising along the tower, the telescopic rod is fully or partially shrunk into the telescopic hole. When the component replacement device rises to a predetermined position, the telescopic rod protrudes from the telescopic hole and is inserted into the preset In the fixed hole at the predetermined position of the tower.

More preferably, the telescopic rod may include a connecting rod 1142 connected to the hydraulic cylinder and a supporting rod 1143 arranged at the front end of the connecting rod. One end of the support rod 1143 is inserted into a fixed hole preset at a predetermined position of the tower, and the other end of the support rod 1143 is placed in the telescopic hole. The supporting rod can adopt a steel column, and its diameter is larger than that of the telescopic rod.

Through such a structure, the hydraulic telescopic part as a fixed part will not touch the surface of the tower during the lifting process, thereby avoiding damage to the surface of the tower. Further, the component replacement device is fixed by inserting the telescopic rod into a predetermined position of the tower and setting a fixing hole, so that the fixing method is simpler and more reliable. In addition, by using a support rod with strong rigidity as the fixed support component, the component replacement device can be more stably fixed at a predetermined position of the tower.

In addition, as shown in Figure 6 and Figure 7, the base can be formed by docking the front half and the rear half, as shown in Figure 6, a butt hole 115 is provided on the front half, as shown in Figure 7 in the The second half is provided with socket pins 116 . Such a detachable structure is more convenient for transportation and installation.

(4) Hoisting mechanism

As shown in FIG. 2 and FIG. 3 , the lifting mechanism 2 of the replacement device in this embodiment may include a portal mechanism 21 , a hoist 22 and a hook 23 arranged at the front end of the portal mechanism. As shown in FIG. 10 , preferably, the hoist 22 and the hook 23 can be configured to move along the beam at the front end of the portal mechanism. In addition, as shown in FIGS. 2 and 5 , the bottom end of the portal mechanism can be pivotally connected to the base through the portal mounting support 24 , and the two sides of the portal mechanism are connected to the base 1 through a plurality of hydraulic support components 25 , a hydraulic support seat 251 for connecting hydraulic support components can also be configured on the base. In this way, the gantry mechanism cooperates with the hydraulic support component, and can move within a certain range in the up and down direction with the mounting support 24 as the axis.

In this embodiment, since the gantry mechanism is used in the hoisting mechanism, the hoisting mechanism will not hinder the lifting of the replacement device during the process of lifting the replacement device. In addition, the mast mechanism is supported by multiple hydraulic support components, and the base is fully utilized for hoisting support, so that the hoisting capacity of the hoisting mechanism can be greatly improved, and there is no need to set a counterweight on the base opposite the hook, The structure of the replacement device is simplified.

In addition, the portal frame mechanism may adopt a structure formed by butting two parts, the docking points are located on the two sides of the portal frame mechanism, and the docking method is fixed by bolts. As shown in FIG. 2 , at the docking point 211 , the front and rear parts are butted by bolts. Such a structure is more convenient for assembly and transportation.

Embodiment two

This embodiment is an embodiment of a component replacement system for a wind power generator.

As shown in Fig. 3, Fig. 11 and Fig. 12, the component replacement system of the wind power generator in this embodiment includes two parts, which are generally divided into the parts replacement parts of the wind power generator in the first embodiment above, and the other part is fixed on the tower. The hoisting auxiliary part 4 on the cylinder, the first pulley mechanism 41 is arranged on the hoisting auxiliary part 4 . In addition, a fixing hole 414 may also be provided on the lifting auxiliary part.

By installing this hoisting aid in the upper part of the tower, it is not necessary to modify the nacelle base, nacelle cover, etc. in order to fix or lift the component replacement device, thereby saving costs. And in the process of installing the component replacement device, the dependence on large lifting equipment and the like is also reduced.

Further, as shown in Figure 11 and Figure 12, Figure 11 and Figure 12 show the structure of the lifting auxiliary part 4 from different angles, the lifting auxiliary part 4 can be specifically an annular component, including an upper reinforcing ring 412, a lower reinforcing ring 413 and The middle ring body 415 is also provided with a plurality of reinforcement ribs 416 between the upper reinforcement ring and the lower reinforcement ring, the upper reinforcement ring is a sheet structure, and the first traction connection is arranged on the lower surface of the upper reinforcement ring 412, as shown in Figure 11 As shown, a first pulley 411 is disposed on the lower surface of the upper reinforcing ring 412 .

With such a structure, the hoisting auxiliary part can be firmly fixed on the upper part of the tower, so that the component replacement device can be lifted or fixed more stably.

In addition, as shown in Figure 3, pedals and guardrails can also be provided on the upper surface of the upper reinforcing ring, which is convenient for personnel to concentrate on hoisting operations and the like.

Embodiment Three

This embodiment is an embodiment of a component replacement method for a wind power generator.

The component replacement method of the present embodiment includes the following steps:

Step 1: Assembling the component replacement device, this step specifically includes: for example, assembling the disassembled base or the door frame mechanism, and making the opening in the middle of the base cover the tower.

Step 2: Connect the traction connection body led out from the traction lifting part of the parts replacement device to the first traction connection part provided on the hoisting auxiliary part.

Wherein, the traction lifting part may include a hoist and a second traction connection part, the traction connection body may be a traction line, and the first traction connection part may be a first pulley mechanism. In this case, this step may specifically be: put the traction line Lead out from the hoist, pass through the first pulley mechanism, and be fixed on the second traction connection part.

Further, the first pulley mechanism may include a plurality of first pulleys, and the second traction connection part may include at least one second pulley and a pulling wire fixing point. In this case, this step may specifically be: pull the pulling wire from The hoist is drawn out, passes through the first pulley and the second pulley alternately, and is fixed on the fixed point of the traction line.

Step 3: The traction lifting part drives the component replacement device to move upward along the tower to a predetermined position by traction.

Wherein, an opening surrounding the tower can be formed on the base, and when the replacement device rises along the tower, there is a gap between the inner wall of the opening and the tower, and a hydraulic telescopic part can also be arranged in the inner wall of the opening. , when the component replacement device rises along the tower, the hydraulic telescopic part is in a contracted state. When the component replacement device rises to the predetermined position of the tower, the hydraulic telescopic part switches to an extended state to fix the base to the hoisting auxiliary part superior.

Further, the hydraulic telescopic part may also include a hydraulic cylinder and a telescopic rod connected to the hydraulic cylinder. The hydraulic cylinder is arranged in the base, and a telescopic hole is provided on the inner wall of the opening. When the component replacement device rises along the tower, The telescopic rod is fully or partly shrunk into the telescopic hole, and when the component replacement device rises to a predetermined position, the telescopic rod protrudes from the telescopic hole and is inserted into the fixing hole of the hoisting auxiliary part.

Step 4: Fix the component replacement device at a predetermined position, and start the component replacement operation.

In addition, in addition to the above steps, it may also include the operation of assembling the steps and guardrails to the above-mentioned hoisting auxiliary part by means of a crane in the nacelle or a ground crane.

The technical solution of the present invention has been described in detail through the above embodiments, wherein the tower is not limited to a circular tower, and can be a tower of any shape. Correspondingly, the base of the component replacement system can also be based on the shape of the tower And corresponding production. For the traction method of lifting the component replacement device to the upper part of the tower, it is not limited to the way that the winch cooperates with the traction line, any equipment that can realize traction can be used, and the traction line can also be replaced by such as a belt-shaped traction body.

Although the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various modifications and changes may be made to these embodiments without departing from the spirit and scope of the invention as defined in the claims .

Claims (18)

1. A component replacement device for a wind-driven generator, characterized in that the component replacement device comprises a base and a hoisting mechanism arranged on the base, a traction lifting part is arranged on the base, and the traction lifting part is arranged on the The first traction connection part at a predetermined position on the tower is connected through a traction connection body, and drives the component replacement device to move upward along the tower in a traction manner, an opening surrounding the tower is formed on the base, A hydraulic telescopic part is provided in the inner wall of the opening, the hydraulic telescopic part includes a hydraulic cylinder and a telescopic rod connected with the hydraulic cylinder, the hydraulic cylinder is arranged in the base, and the inner wall of the opening is provided with The telescopic hole, during the process of the component replacement device rising along the tower, the telescopic rod is fully or partially retracted into the telescopic hole, and when the component replacement device rises to the predetermined position, the The telescopic rod protrudes from the telescopic hole and is inserted into a fixing hole preset at a predetermined position of the tower. 2. The component replacement device for wind power generators according to claim 1, wherein the traction lifting part comprises a hoist and a second traction connection part, the traction connection body is a traction line, and the first traction connection The part is the first pulley mechanism, and the traction line is drawn from the hoist, passes through the first pulley mechanism, and is fixed on the second traction connection part. 3. The component replacement device for wind power generators according to claim 2, wherein the first pulley mechanism comprises a plurality of first pulleys, and the second traction connection part comprises at least one second pulley and a traction pulley The traction line is drawn out from the hoist, alternately passes through the first pulley and the second pulley, and is fixed on the traction line fixation point. 4. The component replacement device for wind power generators according to claim 1, characterized in that there are a plurality of traction lifting parts, symmetrically arranged on the base, and correspondingly connected with a plurality of the first traction connecting parts . 5 . The component replacement device for a wind power generator according to claim 1 , wherein the hoisting mechanism comprises a portal mechanism, a hoist and a hook arranged at a front end of the portal mechanism. 6 . 6. The component replacement device for wind power generators according to claim 1, wherein the bottom end of the portal frame mechanism is pivotally connected to the base through the portal frame mounting support, and the two sides of the portal frame mechanism The sides are connected to the base by a plurality of hydraulic support members. 7 . The component replacement device for wind power generators according to claim 5 , wherein the hoist is arranged laterally movable on a beam at the front end of the portal frame mechanism. 7 . 8 . The component replacement device for a wind power generator according to claim 1 , wherein a tower protection wheel is provided on the inner wall of the opening. 9 . 9. The component replacement device for wind power generators according to claim 1, wherein the telescopic rod includes a connecting rod connected to the hydraulic cylinder and a support rod arranged at the front end of the connecting rod, when the component replacing device After rising to the predetermined position, the support rod protrudes from the telescopic hole, one end of the support rod is inserted into the fixing hole preset at the predetermined position of the tower, and the other end of the support rod in the telescopic hole. 10. The component replacement device for wind power generators according to claim 1, wherein the base is formed by docking a front half and a rear half, a docking hole is provided on the front half, and a butt hole is provided on the rear The half part is provided with socket pins. 11. The component replacement device for a wind power generator according to claim 5, wherein the gantry mechanism is formed by docking two parts, and the docking points are located on the two sides of the gantry mechanism, and the butt joint method Fix by bolts. 12. A component replacement system for wind power generators, characterized in that it comprises the component replacement device according to claim 9 and a hoisting auxiliary part fixed on the tower, the first traction connection part is arranged on the hoisting auxiliary part Above, the fixing hole is also provided on the lifting auxiliary part. 13. The component replacement system for wind power generators according to claim 12, wherein the hoisting auxiliary part is an annular component, comprising an upper reinforcement ring, a lower reinforcement ring and a middle ring body, and the upper reinforcement ring and the A plurality of reinforcing ribs are also provided between the lower reinforcing rings, the upper reinforcing ring is a sheet structure, and the first traction connection part is arranged on the lower surface of the upper reinforcing ring. 14 . The component replacement system for wind power generators according to claim 13 , wherein a step and a guardrail are arranged on the upper surface of the upper reinforcing ring. 15 . 15. A component replacement method for a wind power generator, characterized in that the component replacement device used in the component replacement method includes a base and a hoisting mechanism arranged on the base, a traction lifting part is provided on the base, and the An opening surrounding the tower is formed on the base, and a hydraulic telescopic part is arranged in the inner wall of the opening, and the hydraulic telescopic part includes a hydraulic cylinder and a telescopic rod connected with the hydraulic cylinder, and the hydraulic cylinder is arranged on the In the base, a telescopic hole is provided on the inner wall of the opening. When the component replacement device rises along the tower, the telescopic rod is fully or partially retracted into the telescopic hole. When the component After the replacement device rises to a predetermined position on the tower, the telescopic rod protrudes from the telescopic hole and is inserted into the fixing hole of the hoisting auxiliary part. The method for replacing the part includes: Assembly parts replacement device; connecting the traction connecting body drawn from the traction lifting part of the component replacement device to the first traction connecting part provided on the lifting auxiliary part; The traction lifting part drives the component replacement device to move upwards along the tower to the predetermined position by traction; The component replacement device is fixed at the predetermined position, and a component replacement operation is started. 16. The method for replacing components of a wind power generator according to claim 15, wherein the traction lifting part comprises a winch and a second traction connection part, the traction connection body is a traction line, and the first traction connection The part is the first pulley mechanism, which leads the traction line from the hoist, passes through the first pulley mechanism, and is fixed on the second traction connection part. 17. The method for replacing components of a wind power generator according to claim 16, wherein the first pulley mechanism comprises a plurality of first pulleys, and the second traction connection part comprises at least one second pulley and a traction pulley A line fixing point, the traction line is led out from the hoist, alternately passes through the first pulley and the second pulley, and is fixed on the traction line fixing point. 18. The method for replacing components of a wind power generator according to claim 15, characterized in that, when the replacement device rises along the tower, there is a gap between the inner wall of the opening and the tower. There are gaps.