阅读说明：本技术 一种起吊维修装置及风力发电机 (lifting maintenance device and wind driven generator ) 是由 侯帅 许军 王福东 邓启霞 王峥嵘 于 2019-10-16 设计创作，主要内容包括：本发明公开了一种起吊维修装置及风力发电机,属于风力发电技术领域。本发明所提供的起吊维修装置包括支撑机构、导向机构、旋转机构和吊装组件,导向机构包括垂直设置的横梁和纵梁,旋转机构转动连接在导向机构上,吊装组件用于沿竖直方向起吊待吊装件,且吊装组件能够在导向机构和旋转机构上滑动。该起吊维修装置通过设置在风力发电机的机舱内,不仅能够根据需求随时起吊风力发电机机舱内损坏的零部件以及机舱外新的零部件,有利于提高维修更换效率,且在起吊时不受外界天气情况的影响,更能满足使用需求。此外,该起吊维修装置通过设置能够在导向机构和旋转机构上滑动的吊装组件,增大了吊装范围,提高了通用性。(the invention discloses a lifting maintenance device and a wind driven generator, and belongs to the technical field of wind power generation. The lifting maintenance device comprises a supporting mechanism, a guide mechanism, a rotating mechanism and a lifting assembly, wherein the guide mechanism comprises a cross beam and a longitudinal beam which are vertically arranged, the rotating mechanism is rotationally connected to the guide mechanism, the lifting assembly is used for lifting an object to be lifted in the vertical direction, and the lifting assembly can slide on the guide mechanism and the rotating mechanism. This hoisting maintenance device not only can lift by crane spare part and the outer new spare part of nacelle that the aerogenerator cabin damaged at any time according to the demand through setting up in aerogenerator's nacelle, is favorable to improving maintenance change efficiency, and does not receive the influence of external weather condition when lifting by crane, more can satisfy the user demand. In addition, this lifting maintenance device has increased the hoist and mount scope through setting up the gliding hoist and mount subassembly on guiding mechanism and rotary mechanism, has improved the commonality.)

1. A hoisting service device, characterized by being arranged within a nacelle (200) of a wind turbine, the hoisting service device (100) comprising:

a support mechanism (1) arranged within the nacelle (200);

The guide mechanism (2) comprises a cross beam (21) and a longitudinal beam (22), and the cross beam (21) and the longitudinal beam (22) are vertically arranged and are arranged on the top surface of the supporting mechanism (1);

one end of the rotating mechanism (3) is rotatably connected to the guide mechanism (2);

the hoisting assembly is used for hoisting the piece to be hoisted along the vertical direction and is configured to be capable of sliding on the guide mechanism (2) and the rotating mechanism (3).

2. The lifting service apparatus of claim 1,

the hoisting assembly comprises a first hoisting mechanism, a second hoisting mechanism and a third hoisting mechanism, the first hoisting mechanism is arranged on the cross beam (21) in a sliding mode, and the second hoisting mechanism is arranged on the longitudinal beam (22) in a sliding mode; the third hoisting mechanism is arranged on the rotating mechanism (3) in a sliding mode, and the piece to be hoisted can be transferred among the first hoisting mechanism, the second hoisting mechanism and the third hoisting mechanism.

3. The lifting service apparatus of claim 2,

The cross beam (21) is in an I shape, and the first hoisting mechanism is clamped on a lower transverse plate of the cross beam (21) and can move along the lower transverse plate of the cross beam (21);

The longitudinal beam (22) is in an I shape, and the second hoisting mechanism is clamped on the lower transverse plate of the longitudinal beam (22) and can move along the lower transverse plate of the longitudinal beam (22).

4. The lifting service apparatus of claim 2,

The rotating mechanism (3) comprises a rotating shaft (31) and a cantilever (32), the rotating shaft (31) is rotatably arranged on the guide mechanism (2), one end of the cantilever (32) is fixedly connected with the rotating shaft (31), and the third hoisting mechanism is slidably arranged on the cantilever (32).

5. The lifting service apparatus of claim 4,

Rotary mechanism (3) still include mounting panel (34) and lower mounting panel (35), it sets up to go up mounting panel (34) the upper portion of guiding mechanism (2), lower mounting panel (35) set up the lower part of guiding mechanism (2), go up mounting panel (34) with lower mounting panel (35) sets up relatively, revolving axle (31) rotate to be connected go up mounting panel (34) with between lower mounting panel (35).

6. the lifting service apparatus of claim 4,

The third hoisting mechanism comprises a chain hoist (4) and a driving motor, and the driving motor can drive the chain hoist (4) to move on the cantilever (32).

7. The lifting service apparatus of claim 2,

First hoisting machine construct with second hoisting machine constructs all including single track dolly and chain block, single track dolly slides and sets up crossbeam (21) perhaps on longeron (22), chain block sets up single track dolly's bottom.

8. the lifting service apparatus of claim 1,

The supporting mechanism (1) comprises a plurality of supporting bodies, and the supporting bodies are respectively used for supporting the end parts of the cross beam (21) or the longitudinal beam (22).

9. The lifting service apparatus of claim 1,

the piece to be hoisted is a gear box.

10. A wind power generator comprising a nacelle (200), characterized by further comprising a lifting service device (100) according to any of claims 1-9, said lifting service device (100) being arranged within said nacelle (200).

Technical Field

the invention relates to the technical field of wind power generation, in particular to a lifting maintenance device and a wind driven generator.

background

With the gradual deterioration of energy conditions, wind energy has been increasingly regarded as a renewable, pollution-free natural energy. A wind driven generator is a device capable of converting wind energy into electric energy, and a wind power gear box is an indispensable component in the wind driven generator. The wind power generator needs to be installed to the high altitude when in use, the wind power gear box is located in a cabin of the wind power generator, when a shafting component on the wind power gear box is damaged and needs to be maintained, a ground crane is generally hired in the prior art, and a new shafting component is hoisted to the cabin by the ground crane, so that the wind power gear box is maintained and replaced.

however, the shafting component of the gear box of the rented ground crane has the following defects: 1. the renting cost of the ground crane is very high; 2. the ground crane is greatly influenced by weather conditions (the ground crane cannot be hoisted when the wind speed exceeds 10m/s, and cannot be hoisted when raining); 3. the erection of the tool frame is required on site, and the maintenance and replacement efficiency is low due to the complex erection of the tool frame and long construction time.

Therefore, how to provide a hoisting maintenance device that overcomes the above disadvantages is a technical problem that needs to be solved urgently.

Disclosure of Invention

the invention aims to provide a lifting maintenance device and a wind driven generator.

In order to achieve the purpose, the invention adopts the following technical scheme:

A lift service device configured within a nacelle of a wind turbine, the lift service device comprising:

the supporting mechanism is arranged in the engine room;

The guide mechanism comprises a cross beam and a longitudinal beam, and the cross beam and the longitudinal beam are vertically arranged and are arranged on the top surface of the supporting mechanism;

One end of the rotating mechanism is rotatably connected to the guide mechanism;

the hoisting assembly is used for hoisting the piece to be hoisted in the vertical direction and can slide on the guide mechanism and the rotating mechanism.

preferably, the hoisting assembly comprises a first hoisting mechanism, a second hoisting mechanism and a third hoisting mechanism, the first hoisting mechanism is slidably arranged on the cross beam, and the second hoisting mechanism is slidably arranged on the longitudinal beam; the third hoisting mechanism is arranged on the rotating mechanism in a sliding mode, and the piece to be hoisted can be transferred among the first hoisting mechanism, the second hoisting mechanism and the third hoisting mechanism.

Preferably, the cross beam is in an I shape, and the first hoisting mechanism is clamped on the lower transverse plate of the cross beam and can move along the lower transverse plate of the cross beam;

The longitudinal beam is I-shaped, and the second hoisting mechanism is clamped on the lower transverse plate of the longitudinal beam and can move along the lower transverse plate of the longitudinal beam.

Preferably, the rotating mechanism comprises a rotating shaft and a cantilever, the rotating shaft is rotatably arranged on the guide mechanism, one end of the cantilever is fixedly connected with the rotating shaft, and the third hoisting mechanism is slidably arranged on the cantilever.

Preferably, the rotating mechanism further comprises an upper mounting plate and a lower mounting plate, the upper mounting plate is arranged on the upper portion of the guide mechanism, the lower mounting plate is arranged on the lower portion of the guide mechanism, the upper mounting plate and the lower mounting plate are arranged oppositely, and the rotating shaft is rotatably connected between the upper mounting plate and the lower mounting plate.

preferably, the third hoisting mechanism comprises a chain hoist and a driving motor, and the driving motor can drive the chain hoist to move on the cantilever.

Preferably, the first hoisting mechanism and the second hoisting mechanism both comprise a single-track trolley and a chain block, the single-track trolley is arranged on the cross beam or the longitudinal beam in a sliding mode, and the chain block is arranged at the bottom of the single-track trolley.

Preferably, the support mechanism includes a plurality of support bodies for supporting the ends of the cross member or the longitudinal member, respectively.

Preferably, the number of the cross beams and the number of the longitudinal beams are two, and the two cross beams are arranged in a square shape.

Preferably, the piece to be hoisted is a gear box.

a wind driven generator comprises a machine room and the hoisting maintenance device, wherein the hoisting maintenance device is arranged in the machine room.

The invention has the beneficial effects that:

The invention provides a lifting maintenance device which comprises a supporting mechanism, a guide mechanism, a rotating mechanism and a lifting assembly, wherein the guide mechanism comprises a cross beam and a longitudinal beam which are vertically arranged, the rotating mechanism is rotationally connected to the guide mechanism, the lifting assembly is used for lifting an object to be lifted in the vertical direction, and the lifting assembly can slide on the guide mechanism and the rotating mechanism. This hoisting maintenance device not only can lift by crane spare part and the outer new spare part of nacelle that the aerogenerator cabin damaged at any time according to the demand through setting up in aerogenerator's nacelle, is favorable to improving maintenance change efficiency, and does not receive the influence of external weather condition when lifting by crane, more can satisfy the user demand. In addition, this lifting maintenance device has increased the hoist and mount scope through setting up the gliding hoist and mount subassembly on guiding mechanism and rotary mechanism, has improved the commonality.

Drawings

FIG. 1 is an installation view of a lifting service device provided by the present invention in a nacelle;

FIG. 2 is a schematic structural view of a support mechanism and a guide mechanism provided by the present invention;

Fig. 3 is a schematic structural diagram of a supporting mechanism, a guiding mechanism and a rotating mechanism provided by the invention.

in the figure:

100. Hoisting and maintaining the device; 200. a nacelle; 201. an upper cover of the engine room; 202. a cabin base;

1. A support mechanism; 11. a first support; 111. a first support base; 112. a first column; 12. a second support; 121. a second support seat; 122. a second cylinder; 13. a third support; 131. a third support seat; 132. a third column; 14. a fourth support; 141. a fourth supporting seat; 142. a fourth cylinder;

2. a guide mechanism; 21. a cross beam; 22. a stringer;

3. a rotation mechanism; 31. a rotating shaft; 32. a cantilever; 33. a column; 34. an upper mounting plate; 35. a lower mounting plate;

4. A chain hoist.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

the present embodiment provides a wind power generator capable of converting wind energy into electric energy. As shown in fig. 1, the wind turbine includes a nacelle 200 and a crane maintenance device 100 located in the nacelle 200. When the wind driven generator works, the cabin 200 needs to be installed in the air, in order to facilitate disassembly and assembly, the cabin 200 specifically comprises a cabin seat 202 and a cabin upper cover 201 which are arranged in a split manner from top to bottom, the cabin upper cover 201 is buckled on the cabin seat 202, an accommodating space is formed between the cabin seat 202 and the cabin upper cover, one end of the accommodating space is provided with a hanging opening, and a piece to be hung enters and exits the accommodating space through the hanging opening. The interior of the accommodating space is provided with a hoisting maintenance device 100, a generator cooler, a gear box, a gear oil cooler, a contraction disk, a gear box support and other components. When a certain component in the nacelle 200 is damaged and needs to be replaced, the hoisting maintenance device 100 is used for hoisting the damaged component out of the nacelle 200 and hoisting a new component into the nacelle 200, so that replacement and maintenance of parts are realized. In the embodiment, for convenience of description, a specific structure of the hoisting maintenance device 100 is described in detail by taking a to-be-hoisted piece as a shafting component of a gearbox as an example.

as shown in fig. 1 to 3, the hoisting maintenance device 100 includes a gantry tool, a rotating mechanism 3 and a hoisting assembly. The gantry tool is not only a main supporting component for lifting the maintenance device 100, but also can lift the shafting parts of the gear box and move the shafting parts to the direction close to or far away from the rotating mechanism 3. In this embodiment, in order to hoist shafting components of the gearbox nearby, the gantry tooling is mounted to the nacelle base 202 and in particular to the gearbox support of the gearbox. The rotating mechanism 3 is mainly used for realizing the rotation of the shafting parts in the horizontal plane, so that the shafting parts can be quickly close to or far away from the object hanging opening. The hoisting assembly is arranged on the portal frame tool and the rotating mechanism 3 and used for realizing the movement of the shafting parts on the portal frame tool and the rotating mechanism 3.

As shown in fig. 2, the gantry tool includes a supporting mechanism 1 and a guiding mechanism 2. The guide mechanism 2 comprises a cross beam 21 and a longitudinal beam 22, the cross beam 21 is arranged on the top of the support mechanism 1 along a first direction, the longitudinal beam 22 is arranged on the top of the support mechanism 1 along a second direction, and the first direction and the second direction are perpendicular. The hoisting assembly comprises a first hoisting mechanism, a second hoisting mechanism and a third hoisting mechanism, the first hoisting mechanism is slidably arranged on the cross beam 21, and the second hoisting mechanism is slidably arranged on the longitudinal beam 22; the third hoisting mechanism is arranged on the rotating mechanism 3 in a sliding mode, and the piece to be hoisted can be transferred among the first hoisting mechanism, the second hoisting mechanism and the third hoisting mechanism.

Optionally, in this embodiment, each of the first hoisting mechanism and the second hoisting mechanism includes a single-rail trolley and a chain block, the single-rail trolley is slidably disposed on the cross beam 21 or the longitudinal beam 22, and the chain block is disposed at the bottom of the single-rail trolley. The monorail trolley and the chain block are both in the prior art, and the specific structure of the monorail trolley and the chain block is not described in detail herein. The third hoisting mechanism comprises a chain hoist 4 and a driving motor, and the driving motor can drive the chain hoist 4 to move on the rotating mechanism 3. The chain block 4 is also prior art, and the detailed structure thereof is not described herein.

optionally, in this embodiment, the cross beam 21 and the longitudinal beam 22 are both in an "i" shape, and include an upper transverse plate, a vertical plate, and a lower transverse plate that are connected in an "i" shape, and the monorail trolley is provided with a sliding groove, so as to be able to be clamped on the lower transverse plate and slide along the length direction of the lower transverse plate. The cross beam 21 and the longitudinal beam 22 in the shape of the H are good in structural rigidity and not easy to deform, the moving stability of the monorail trolley is improved, and the monorail trolley is light in weight and easy to purchase. Further optionally, a pulley is further arranged on the monorail trolley and abutted against the lower transverse plate so as to reduce friction force applied to the monorail trolley during sliding.

The number of the cross members 21 and the longitudinal members 22 may be one or plural. In this embodiment, in order to improve the flexibility of the hoisting shafting parts, as shown in fig. 2 and 3, two cross beams 21 and two longitudinal beams 22 are selectively arranged, the two cross beams 21 are arranged in parallel, the two longitudinal beams 22 are arranged in parallel, the two cross beams 21 and the two longitudinal beams 22 are arranged in a square shape or a cross shape, and the gear box is located in a space formed by the two cross beams 21 and the two longitudinal beams 22. In order to increase the compactness of the guide mechanism 2 and reduce the use of connecting pieces, in the present embodiment, two longitudinal beams 22 are erected above two cross beams 21, and the support mechanism 1 only supports the cross beams 21.

The supporting mechanism 1 is used for providing stable support for the guide mechanism 2, so that the moving stability of the monorail trolley and the chain block is ensured. As shown in fig. 1, the support mechanism 1 is vertically arranged on the nacelle stand 202, and the cross beam 21 is arranged on top of the support mechanism 1. In order to improve the support stability, the support mechanism 1 includes a plurality of support bodies, each of which is supported at an end of the cross beam 21. Specifically, as shown in fig. 2, in the present embodiment, the plurality of support bodies include a first support body 11, a second support body 12, a third support body 13, and a fourth support body 14, which are supported at the four ends of the two cross members 21, respectively.

optionally, the first support 11 comprises a first support seat 111 and a first column 112, the first support seat 111 being arranged on the nacelle seat 202, the first column 112 being arranged on the first support seat 111. The second support body 12 comprises a second support seat 121 and a second column 122, the second support seat 121 is arranged on the nacelle seat 202, and the second column 122 is arranged on the second support seat 121. The third supporting body 13 includes a third supporting seat 131 and a third column 132, the third supporting seat 131 is disposed on the nacelle seat 202, and the third column 132 is disposed on the third supporting seat 131. The fourth supporting body 14 includes a fourth supporting seat 141 and a fourth column 142, the fourth supporting seat 141 is disposed on the nacelle seat 202, and the fourth column 142 is disposed on the fourth supporting seat 141. Further alternatively, the first column 112, the second column 122, the third column 132 and the fourth column 142 may be provided as telescopic rod structures so as to adjust the supporting heights of the first supporting body 11, the second supporting body 12, the third supporting body 13 and the fourth supporting body 14 as required.

Of course, in other embodiments, if the longitudinal beams 22 are disposed below the cross beams 21, four support bodies are supported at the four ends of the longitudinal beams 22. If the longitudinal beams 22 and the transverse beams 21 are arranged in other forms or the number of the transverse beams 21 and the longitudinal beams 22 is larger, a plurality of supporting bodies can be additionally arranged, and then the end parts of the transverse beams 21 and the end parts of the longitudinal beams 22 are simultaneously supported to improve the supporting stability.

As shown in fig. 3, the rotating mechanism 3 includes a rotating shaft 31 and a cantilever 32, the rotating shaft 31 is rotatably disposed on the guiding mechanism 2, one end of the cantilever 32 is fixedly connected to the rotating shaft 31, in this embodiment, the cantilever 32 is vertically disposed on the cross beam 21, and the third hoisting mechanism is slidably disposed on the cantilever 32. The axis of the pivot shaft 31 is disposed perpendicular to the top surface of the cross member 21 so that the cantilever 32 can be rapidly pivoted in the horizontal plane. Alternatively, in the present embodiment, the rotation angle of the rotation shaft 31 does not exceed 270 ° to be able to rotate the maximum rotation angle without interfering with the guide mechanism 2. Further optionally, a bearing is further disposed at the joint of the rotating shaft 31 and the cross beam 21 to reduce the difficulty of rotation of the rotating shaft 31, so as to achieve the purpose of being capable of freely rotating under manual driving.

In order to facilitate the installation of the rotating shaft 31, as shown in fig. 3, the rotating mechanism 3 further comprises an upper mounting plate 34, a lower mounting plate 35 and a vertical column 33, wherein the vertical column 33 is vertically arranged on the top surface of the cross beam 21, the upper mounting plate 34 is horizontally arranged on the top of the vertical column 33, the lower mounting plate 35 is horizontally arranged on the bottom surface of the cross beam 21, the upper mounting plate 34 and the lower mounting plate 35 are oppositely arranged, and the rotating shaft 31 is rotatably connected between the upper mounting plate 34 and the lower mounting plate 35. Of course, in other embodiments, if the height of the cross beam 21 is sufficient, the upright posts 33 may be omitted, and only the upper mounting plate 34 and the lower mounting plate 35 may be provided.

The third hoisting mechanism can move on the cantilever 32, so that the to-be-hoisted piece can move along the length direction of the cantilever 32, the damaged shafting parts of the gearbox can be moved out of the hoisting opening and then positioned outside the nacelle 200, or the new shafting parts of the gearbox can be moved into the nacelle 200 through the hoisting opening from the outside of the nacelle 200.

the steps of the hoisting maintenance device 100 for replacing and maintaining the shafting parts of the gear box are as follows:

Firstly, a jacking device is needed to jack the cabin upper cover 201 open, and a hanging object opening is leaked; and a shafting part needing to be replaced in the gearbox is hoisted by utilizing a first hoisting mechanism on the cross beam 21 and/or a second hoisting mechanism on the second longitudinal beam 22, and moves to the rotating mechanism 3 along the first direction and/or the second direction. Here, can use first hoisting machine to construct or second hoisting machine constructs alone, also can use first hoisting machine structure and second hoisting machine structure simultaneously, specifically according to the position decision of shafting part. The first direction is the X direction in a conventional coordinate system, and the second direction is the Y direction.

When the shafting parts reach the rotating mechanism 3, transferring the shafting parts to be replaced to a third hoisting mechanism, and then manually driving the cantilever 32 to rotate to enable the cantilever 32 and the shafting parts thereon to move to the object lifting port; after the cantilever 32 extends out of the object hanging opening, the driving motor of the third hoisting mechanism works to enable the chain block 4 to pass through the object hanging opening and move to the outside of the cabin 200, and the shafting parts needing to be replaced are operated to the ground through the chain block 4.

Finally, hoisting the new shafting parts to the height of the cabin 200 from the ground by using the chain hoist 4, reversely operating the cantilever 32 to enable the new shafting parts to enter the cabin 200, and then moving the new shafting parts in the cabin 200 in place by using the first hoisting mechanism and/or the second hoisting mechanism, and then completing the installation of the new shafting parts to realize the maintenance of the gear box.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.