Wind power generating set and maintenance crane thereof
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to a kind of maintenance crane that is used for wind power generating set.The utility model also relates to a kind of wind power generating set that comprises above-mentioned maintenance crane.
Background technology
Along with the fast development of China's economic construction, electric energy is increasing to the influence of economic construction and people life, and wind-power electricity generation also more and more is subject to people's attention as a kind of in the multiple generation mode.
Wind-power electricity generation is exactly that the kinetic energy of keeping watch is transformed into mechanical energy, again mechanical energy is converted into a kind of generation mode of electric energy, in order to improve generating efficiency, wind power plant is generally built outdoor that wind resource relatively enriches in, and utilizes wind power generation plant-wind power generating set to realize the conversion of wind energy to electric energy.
Wind power generating set some faults can occur in the course of the work unavoidably, for convenience trouble unit is keeped in repair and changes, generally need be in the cabin of wind power generating set the installation and maintenance crane, ground is pulled down and delivered to trouble unit keep in repair with convenient, perhaps change.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of representative type maintenance crane in the prior art.
As shown in FIG., the maintenance crane comprises caterpillar elevater 13, caterpillar elevater 13 is supported in the underframe 11 in the cabin of aerogenerator by bracing frame 12, one jiao of underframe 11 offers hole for hoist 111, caterpillar elevater 13 hang under the supporting role of bracing frame 12 hole for hoist 111 directly over.
When the working part in the cabin of wind power generating set breaks down, the maintainer at first pulls down trouble unit, be carried to the position of caterpillar elevater 13 then, its chain with caterpillar elevater 13 is connected, and under the dynamic action of caterpillar elevater 13, winch to ground maintenance or replacing by hole for hoist 111; Then, will eliminate fault again or change after working part under the effect of caterpillar elevater 13, be promoted in the cabin by hole for hoist 111, be carried to original position from raised position again and install, finish the maintenance or the replacing of trouble unit.
The maintenance crane of said structure, because caterpillar elevater 13 is fixedly installed in the underframe in cabin by bracing frame 12, trouble unit need just can promote through the position of a dead lift to caterpillar elevater 13, the operating process more complicated, on the other hand, limited by transporting capacity, the lifting weight ratio of this kind maintenance crane is less, can only below 600KG, can't be applied in the maintenance of about 1 tonne at present common trouble unit.
Please refer to Fig. 2, Fig. 2 is the structural representation of second kind of representative type maintenance crane in the prior art.
As shown in Figure 2, the maintenance crane comprises folding arm 14 and the caterpillar elevater 13 that supports by folding arm 14, folding arm 14 supports by the bracing frame 12 that is fixedly installed in cabin underframe 11, and one jiao of underframe 11 offers hole for hoist 111, and caterpillar elevater 13 can change the position under the drive of folding arm 14.
In the working process, caterpillar elevater 13 arrives the trouble unit position under the effect of folding arm 14, after the maintainer pulls down trouble unit, be connected in the end of the chain of caterpillar elevater 13, trouble unit just can move under the effect of folding arm 14 hole for hoist 111 directly over, and then make trouble unit winch to ground to keep in repair or change by hole for hoist 111, working part after working part that maintenance is finished or the replacing, also can be promoted in the cabin by chain gig 13, and under the effect of folding arm 14, move to original position, finish maintenance work.
The maintenance crane that is arranged so that of folding arm 14 can arrive a plurality of positions in cabin, but is subjected to the restriction of its structure, and folding arm still has the blind area in the course of the work, and some position in the cabin can not arrive; On the other hand, operation inconvenience after the folding arm 14 lifting working parts, for guaranteeing that folding arm 14 can arrive more position, just need the width and the size highly of engine room cover bigger, not only make structure not compact, and caused the increase of cost, simultaneously, the structure of folding arm 14 itself is also very complicated, cost is also very high; Further, be subjected to the restriction in engine room inside space, the size of folding arm 14 is restricted, and the lifting ability of folding arm 14 also is subjected to certain restriction.
Please refer to Fig. 3, Fig. 3 is the structural representation of the third representative type maintenance crane in the prior art.
The third maintenance crane comprises first slide rail 15 of the engine room cover bracing frame that is fixed in aerogenerator, two first slide rails 15 all are parallel to the length direction in cabin, the driving that can move along first slide rail 15 is installed on first slide rail 15, driving comprises and is installed on the caterpillar elevater 13 that can move along second slide rail 16 on second slide rail, 16, the second slide rails 16 perpendicular to first slide rail 15.
In the working process, caterpillar elevater 13 can arrive any position of engine room cover in-to-in along first slide rail 15 and second slide rail 16, drive then trouble unit move to hole for hoist 111 directly over, make trouble unit pass hole for hoist 111 and move to ground, change and keep in repair, and and then trouble unit that maintenance is finished and the working part of replacing take back to original position.
Easy to operate, work wide coverage with maintenance crane of said structure, but because the price of its complex structure, track is higher, make that the cost of maintenance crane is higher; On the other hand, the third maintenance crane relatively is applicable to large-scale wind power generating set, and its odds ratio is brought into play preferably, small-sized as if being applied to (such as: the wind power generating set 1.5/2.0MW level), utilizing of residual capacity is relatively poor, serious waste of resources.
Therefore, how on the basis that the hoisting capacity resource that guarantees the maintenance crane makes full use of, reduce the cost of wind power generating set and maintenance crane, and improve the comfort feature of hoisting process, just become the present technical issues that need to address of those skilled in the art.
The utility model content
The purpose of this utility model provides a kind of maintenance crane, this maintenance crane compact conformation, and cost is lower, is applicable to more small-sized wind power generating set, has guaranteed making full use of of its hoisting capacity resource, has improved the comfort feature of lifting.Another purpose of the present utility model provides a kind of wind power generating set that comprises above-mentioned maintenance crane.
For solving the problems of the technologies described above, the utility model provides a kind of maintenance crane that is used for wind power generating set, comprise track support members, circular orbit beam and gig, described track support members is fixed in the cabin perisporium of described wind power generating set, described circular orbit beam is fixed in described track support members, and all has preset distance between in cabin control housing, yaw motor, main shaft and the coupler of described circular orbit beam and described wind power generating set any one; Described hoist installation is in described circular orbit beam, and can move along described circular orbit beam.
Preferably, described circular orbit beam comprises a plurality of beam sections, and each described beam section connects by link.
Preferably, described link is a bolt.
Preferably, described track support members is the rail supported beam that is fixed in the underframe in described cabin.
Preferably, described track support members is the back-up block that is fixed in the engine room cover in described cabin.
Preferably, described gig is an electric block.
Preferably, also comprise the trolley parts that power is provided to described electric block, described trolley parts and described circular orbit Liangping row.
Preferably, the cross-sectional plane of described circular orbit beam is " worker " font or " C " font, and the roller of described electric block is supported by the lower flange of described circular orbit beam.
For solving the problems of the technologies described above, the utility model also provides a kind of wind power generating set, comprises cabin and the maintenance crane that is installed in the described cabin, and described maintenance crane is above-mentioned each described maintenance crane.
The maintenance crane that is used for wind power generating set provided by the utility model, comprise track support members, circular orbit beam and gig, the rail supported beam is fixed in the cabin perisporium of wind power generating set, the circular orbit beam is fixed in track support members, and all has preset distance between in cabin control housing, yaw motor, main shaft and the coupler of circular orbit beam and wind power generating set any one; Hoist installation is in the circular orbit beam, and can move along the circular orbit beam.Like this, when the parts in the cabin of wind power generating set break down, at first make gig move to distance and treat the position that Awaiting Parts is nearer along the circular orbit beam, the Awaiting Parts for the treatment of that the staff will pull down is connected in gig, gig drives and treats that Awaiting Parts moves to the top of the hole for hoist that is opened in the cabin underframe along the circular orbit beam, to treat that Awaiting Parts passes hole for hoist and is positioned over ground, treating Awaiting Parts keeps in repair or changes, behind the trouble-shooting, the parts that maintenance is finished or changed are promoted in the cabin through hole for hoist by gig again, and move to original position along the circular orbit beam, finish the installation of parts again.As can be seen, maintenance crane provided by the utility model, gig can along the circular orbit beam move to and cabin control housing, yaw motor, main shaft and the coupler of wind power generating set between have the position of preset distance, realize that easily the 1t level treats being connected of Awaiting Parts and gig, thereby can utilize gig that it is transported, the transporting capacity that has reduced the staff is treated the restriction of the size of Awaiting Parts; On the other hand, because the circular orbit beam is fixed in the top of rail supported beam, the size of circular orbit beam is to be of a size of the basis with existing cabin, and need not to move, therefore need not to carry out the change of cabin size, make that maintenance crane single-piece is simple in structure, compact, cost is lower, has guaranteed the making full use of of hoisting capacity resource of maintenance crane.
In a kind of preferred implementation, maintenance crane provided by the utility model also comprises the trolley parts that power is provided to electric block, trolley parts and circular orbit Liangping row.Like this, the trolley parts can be easily for the electric block of the optional position that is in the circular orbit beam provides power, thereby significantly reduced the length that connects the electric wire of electric block and power supply, also reduced the complexity of electric wire arrangement simultaneously.
The beneficial effect of wind power generating set provided by the utility model is similar with the beneficial effect of maintenance crane, does not repeat them here.
Description of drawings
Fig. 1 is the structural representation of a kind of representative type maintenance crane in the prior art;
Fig. 2 is the structural representation of second kind of representative type maintenance crane in the prior art;
Fig. 3 is the structural representation of the third representative type maintenance crane in the prior art;
The structural representation of the maintenance crane that Fig. 4 is provided for a kind of specific embodiment of the utility model.
The specific embodiment
Core of the present utility model provides a kind of maintenance crane, this maintenance crane compact conformation, and cost is lower, is applicable to more small-sized wind power generating set, has guaranteed making full use of of its hoisting capacity resource, has improved the comfort feature of lifting.Another core of the present utility model provides a kind of wind power generating set that comprises above-mentioned maintenance crane.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 4, the structural representation of the maintenance crane that Fig. 4 is provided for a kind of specific embodiment of the utility model.
In a kind of specific embodiment, the maintenance crane that is used for wind power generating set provided by the utility model, be installed on the inside in the cabin of wind power generating set, comprise track support members, circular orbit beam 23 and gig 25, track support members is fixed in the cabin perisporium of wind power generating set, circular orbit beam 23 is fixed in track support members, and all has preset distance between in cabin control housing, yaw motor, main shaft and the coupler of circular orbit beam 23 and wind power generating set any one; Gig 25 is installed on circular orbit beam 23, and can move along circular orbit beam 23, transports between cabin and ground for conveniently treating Awaiting Parts, offers hole for hoist 211 at the underframe 21 in cabin one jiao.
Particularly, the cabin perisporium of wind power generating set as herein described comprises the sidewall of engine room cover and the underframe 21 in cabin; Because the easily worn part of the 1t level of wind power generating set mainly concentrates on zones such as cabin control housing, yaw motor, main shaft and coupler, therefore, has preset distance between cabin control housing, yaw motor, main shaft and the coupler of circular orbit beam 23 as herein described and wind power generating set, be meant the zone of circular orbit beam 23 through rapid wear 1t level parts in the cabin, so that gig 25 can move to the position more approaching with above-mentioned parts, treat that conveniently Awaiting Parts is connected with gig 25; Wherein, preset distance specifically is meant the minor increment that space and structure can allow.
Circular orbit beam 23 can have shape as shown in Figure 4, also can have other shapes, as long as can be through the periphery of easily worn parts such as cabin control housing, yaw motor, main shaft and coupler and the top of hole for hoist 211.
Like this, when the parts in the cabin of wind power generating set break down, at first make gig 25 move to distance and treat the position that Awaiting Parts is nearer along circular orbit beam 23, the Awaiting Parts for the treatment of that the staff will pull down is connected in gig 25, gig 25 drives treats that Awaiting Parts moves to the top of the hole for hoist 211 that is opened in cabin underframe 21 along circular orbit beam 23, to treat that Awaiting Parts passes hole for hoist 211 and is positioned over ground, treating Awaiting Parts keeps in repair or changes, behind the trouble-shooting, the parts that maintenance is finished or changed are promoted in the cabin through hole for hoist 211 by gig 25 again, and move to original position along circular orbit beam 23, finish the installation of parts again.
As can be seen, maintenance crane provided by the utility model, gig 25 can along circular orbit beam 23 move to and cabin control housing, yaw motor, main shaft and the coupler of wind power generating set between have the position of preset distance, realize that easily the 1t level treats being connected of Awaiting Parts and gig 25, thereby can utilize gig 25 that it is transported, the transporting capacity that has reduced the staff is treated the restriction of the size of Awaiting Parts; On the other hand, because circular orbit beam 23 is fixed in the top of the track support members that is positioned at the cabin, the size of circular orbit beam 23 is to be of a size of the basis with existing cabin, and need not to move, therefore lower to the dimensional characteristic in cabin, need not to carry out the change of cabin size, make that maintenance crane single-piece is simple in structure, compact, cost is lower, has guaranteed the making full use of of hoisting capacity resource of maintenance crane.
The processing of circular orbit beam 23 for convenience, can at first process a plurality of beam sections, then a plurality of beam sections are connected by link 231, form circular orbit beam 23, particularly, above-mentioned link 231 can be bolt, should carry out respective handling in the junction certainly, guarantees that gig can move without barrier along circular orbit beam 23.
For the stability that guarantees circular orbit beam 23 is supported, track support members can be the rail supported beam 22 of the underframe 21 that is fixed in the cabin.Like this, rail supported beam 22 has not only played the effect of supporting annular track girder 23, but also has constituted engine room cover support frame beam jointly with circular orbit beam 23, and engine room cover is supported, reduce the number of components and parts of wind power generating set, alleviated the weight of complete machine.
Certainly, above-mentioned track support members also can be the back-up block of the engine room cover that is fixed in the cabin.
In a kind of specific embodiment, the gig that is used for wind power generating set provided by the utility model can be electric block.Electric block is an outsourcing piece, process technology maturation, functional reliability height.
For electric block provides power, maintenance crane provided by the utility model can also comprise trolley parts 24 for convenience, and trolley parts 24 are parallel with circular orbit beam 23.
Like this, as shown in Figure 4, trolley parts 24 can be easily for the electric block of the optional position that is in circular orbit beam 23 provides power, thereby significantly reduced the length that connects the electric wire of electric block and power supply, also reduced the complexity of electric wire arrangement simultaneously.
For convenience of the layout of electric block, the cross-sectional plane of circular orbit beam 23 can be " worker " font or " C " font, and the roller of electric block is supported by the lower flange of circular orbit beam 23.Like this, roller just can roll along the lower flange of circular orbit beam 23, and then drives electric block, with and the Awaiting Parts for the treatment of of lifting move to the target location along circular orbit beam 23.
Except above-mentioned maintenance crane, the utility model also provides a kind of wind power generating set, comprises cabin and the maintenance crane that is installed in the cabin, and described maintenance crane is above-described maintenance crane, other each several part structures of wind power generating set please refer to prior art, and this paper repeats no more.
More than to wind power generating set provided by the utility model and the maintenance crane be described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.