CN203715100U - Part replacement device and part replacement system of wind driven generator - Google Patents

Abstract

The utility model provides a part replacement device and a part replacement system of a wind driven generator. The part replacement device comprises a base and a hoisting mechanism arranged on the base, wherein the base is provided with a traction lifting part; the traction lifting part is connected with a first traction connection part arranged at a pre-set position of a tower barrel by a traction connection part; the part replacement device is driven by a traction manner to move upwards along the tower barrel. Furthermore, the utility model provides a part replacement system. With the adoption of the part replacement device and the part replacement system of the wind driven generator provided by the utility model, a lifting mechanism of the part replacement device is very simple and the production cost is low; in a process of lifting the part replacement device, the dependence on large-size hoisting equipment is reduced and the installation cost is reduced.

Description

Parts replacement device and parts replacement system for wind turbines

technical field

The utility model relates to a component replacement device and a component replacement system, in particular to a component replacement device and a component replacement system 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 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.

Utility model content

The purpose of this utility model is to provide a component replacement device and a component replacement system of 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 Reliance on large lifting equipment reduces installation costs.

In order to achieve the above object, the utility model 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 The part is connected to 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 utility model also provides a component replacement system of 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 utility model further 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, the first traction connection part is arranged on the hoisting auxiliary part, the The fixing holes are also arranged on the lifting auxiliary part.

Through the component replacement device and the component replacement system of the wind power generator of the utility model, the lifting mechanism of the component replacement device is simpler, the manufacturing cost is lowered, and in the process of lifting the component replacement device, the load on the large lifting equipment is reduced. Dependency, reducing installation costs.

Description of drawings

Through the following description in conjunction with the accompanying drawings, the above-mentioned and other purposes and characteristics of the present utility model will become more clear, 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 the component replacement device of the wind power generator according to the first embodiment of the present invention;

Fig. 3 is the first application schematic diagram of the component replacement device of the wind power generator according to the first embodiment of the utility model;

Fig. 4 is the second application schematic diagram of the component replacement device of the wind power generator in the first embodiment of the present invention;

Fig. 5 is a schematic diagram of the overall structure of the base of the component replacement device of the wind power generator according to Embodiment 1 of the present utility model;

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

Fig. 7 is a second schematic diagram of the disassembled structure 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 utility model;

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 utility model;

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 utility model;

Fig. 11 is a structural schematic diagram 1 of the hoisting auxiliary part of the component replacement system of the wind power generator according to the second embodiment of the utility model;

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 utility model.

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; 411-first pulley; 412-upper reinforcing ring; 413-lower reinforcing ring; 414-fixing hole; 415-middle ring; 416-reinforcing rib; 1121-second pulley; Cylinder; 1142-connecting rod; 1143-support rod.

Detailed ways

Hereinafter, embodiments of the present utility model 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 utility model, which shows the structure of the traction lifting part arranged on the base from a top view . The traction lifting part 11 and the traction connecting body 5 are the main parts of the lifting part replacement device. The traction lifting part 11 may include a hoist 111 and a second traction connecting part 112 (as shown in FIG. 5 ), and the pulling connecting body 5 may 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 (the traction line fixed point can also be a pulley, but it is used as a fixed point at 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 traction line fixed point 1122. 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 41 . 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 provided 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 Figures 6 and 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 The latter 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 lifting auxiliary part 4 on the cylinder, the first traction connecting part 41 is arranged on the lifting 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 part is provided with the lower surface of the upper reinforcement ring 412, as shown in Figure 11 Shown, the lower surface of the upper reinforcing ring 412 is provided with a first pulley 411.

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 2, 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 All or part of the rod shrinks 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 utility model 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 Shape 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.

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

Claims (18)

1. the part replacement device of an aerogenerator, it is characterized in that, this part replacement device comprises base and is arranged on the hoisting mechanism on this base, on described base, be provided with traction enhancement portion, this traction enhancement portion be arranged on tower cylinder on desired location first traction connecting portion by draw connector be connected, drive described part replacement device to move up along described tower cylinder in the mode of drawing.

2. the part replacement device of aerogenerator according to claim 1, it is characterized in that, described traction enhancement portion comprises winch and the second traction connecting portion, described traction connector is draught line, described the first traction connecting portion is the first pulley mechanism, draught line is drawn from described winch, through described the first pulley mechanism, is fixed on described the second traction connecting portion.

3. the part replacement device of aerogenerator according to claim 2, it is characterized in that, described the first pulley mechanism comprises multiple the first pulleys, described the second traction connecting portion comprises at least one second pulley and a draught line attachment point, described draught line is drawn from described winch, alternately, through described the first pulley and described the second pulley, be fixed on described draught line attachment point.

4. the part replacement device of aerogenerator according to claim 1, is characterized in that, described traction enhancement portion is multiple, is symmetricly set on described base, with the corresponding connection of multiple described the first traction connecting portion.

5. the part replacement device of aerogenerator according to claim 1, is characterized in that, described hoisting mechanism comprises door frame mechanism and is arranged on gig and the suspension hook of door frame mechanism front end.

6. the part replacement device of aerogenerator according to claim 5, it is characterized in that, the bottom of described door frame mechanism is articulated on described base by door frame erection support, and two sides of described door frame mechanism are connected with described base by multiple hydraulic pressure support parts.

7. the part replacement device of aerogenerator according to claim 5, is characterized in that, described gig can be arranged on the crossbeam of front end of described door frame mechanism transverse shifting.

8. the part replacement device of aerogenerator according to claim 1, it is characterized in that, on described base, be formed with the opening around tower cylinder, in the process rising along described tower cylinder at described more changing device, between the inwall of described opening and described tower cylinder, leave gap.

9. the part replacement device of aerogenerator according to claim 8, is characterized in that, is provided with tower cylinder guard sheaver on the inwall of described opening.

10. the part replacement device of aerogenerator according to claim 8, it is characterized in that, in the inwall of described opening, be provided with hydraulically extensible portion, in the process rising along described tower cylinder at described part replacement device, described hydraulically extensible portion is in contraction state, when described part replacement device rises to behind the described desired location of tower cylinder, described hydraulically extensible portion switches to the state of stretching out, and described base is fixed on described tower cylinder.

The part replacement device of 11. aerogenerators according to claim 10, it is characterized in that, described hydraulically extensible portion comprises hydraulic actuating cylinder and the expansion link being connected with this hydraulic actuating cylinder, described hydraulic actuating cylinder is arranged in described base, on the inwall of described opening, be provided with telescopic hole, in the process rising along described tower cylinder at described part replacement device, described expansion link is all or part of to be retracted in described telescopic hole, when described part replacement device rises to behind described desired location, described expansion link stretches out from described telescopic hole, be inserted into and set in advance in the fixed orifice of the pre-position of described tower cylinder.

The part replacement device of 12. aerogenerators according to claim 11, it is characterized in that, described expansion link comprises the pipe link being connected with hydraulic actuating cylinder and the strut bar of this pipe link front end is set, when described part replacement device rises to behind desired location, described strut bar stretches out from described telescopic hole, one end of described strut bar is inserted into and sets in advance in the fixed orifice of the pre-position of described tower cylinder, and the other end of described strut bar is in described telescopic hole.

The part replacement device of 13. aerogenerators according to claim 1, is characterized in that, described base is formed by first half two parts and latter half docking, on described first half, is provided with butt hole, on described latter half, is provided with and patches pin.

The part replacement device of 14. aerogenerators according to claim 5, is characterized in that, described door frame mechanism is formed by two parts docking, and docking point is positioned on two sides of described door frame mechanism, and docking mode adopts the fixing mode of bolt.

The part replacement system of 15. 1 kinds of aerogenerators, is characterized in that, it comprises part replacement device described in claim 1-13 and be fixed on the lifting assisted parts on tower cylinder, and described the first traction connecting portion is arranged on described lifting assisted parts.

The part replacement system of 16. 1 kinds of aerogenerators, it is characterized in that, it comprises the part replacement device of claim 12 and is fixed on the lifting assisted parts on tower cylinder, and described the first traction connecting portion is arranged on described lifting assisted parts, on described lifting assisted parts, is also provided with described fixed orifice.

The part replacement system of 17. aerogenerators according to claim 16, it is characterized in that, described lifting assisted parts is annular element, comprise ring stiffener, lower ring stiffener and middle ring body, between ring stiffener and described lower ring stiffener, be also provided with multiple reinforced ribs on described, described upper ring stiffener is schistose texture, and described the first traction connecting portion arranges the lower surface of described upper ring stiffener.

The part replacement system of 18. aerogenerators according to claim 17, is characterized in that, the upper surface of ring stiffener is provided with pedal and guardrail on described.