CN214087281U

CN214087281U - Maintenance hoisting device for wind turbine generator

Info

Publication number: CN214087281U
Application number: CN202022891546.4U
Authority: CN
Inventors: 杨文明; 吴宝山; 王敏
Original assignee: Nanjing Yangchuan Electromechanical Equipment Maintenance And Installation Co ltd
Current assignee: Nanjing Yangchuan Electromechanical Equipment Maintenance And Installation Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-08-31
Anticipated expiration: 2030-12-02

Abstract

The utility model relates to a wind turbine generator system maintains hoist device is applied to hoist device's field, and it includes the hanging beam and is used for hanging the mechanism that suspends in midair of wind turbine generator system, is equipped with the coupling mechanism who is used for linking to each other with the crane hook on the hanging beam, suspends the mechanism in midair and includes the lifting hook, and the lifting hook links to each other with the hanging beam, and the lifting hook includes connecting portion and crotch portion, and connecting portion one end links to each other with the hanging beam, the other end with crotch portion links to each other, is equipped with the anticreep unit on the lifting hook. The anticreep unit includes anticreep pole and dead lever, and anticreep pole one end is articulated with connecting portion, and the other end can be dismantled with the one end that connecting portion were kept away from to crotch portion and be connected. The department of linking with colluding of wind turbine generator system and lifting hook is restricted in the lifting hook in this application, and the reducible wind turbine generator system breaks away from and leads to the possibility that the wind turbine generator system falls from the high altitude because of wind turbine generator system and lifting hook.

Description

Maintenance hoisting device for wind turbine generator

Technical Field

The application relates to the field of hoisting devices, in particular to a hoisting device for maintaining a wind turbine generator.

Background

At present, a wind turbine generator is a short name of a wind turbine generator, and comprises a wind wheel and a generator. The wind wheel consists of blades, hub, reinforcing part, etc. The wind energy can be converted into electric energy, and the wind energy is the most mature renewable energy source for power generation besides the hydroelectric power generation technology. The hoisting refers to a general term of installation and positioning of equipment by a crane or a hoisting mechanism, and various hoisting machines are used for hoisting the equipment, workpieces, appliances, materials and the like in the process of maintenance or repair so as to change the positions of the equipment. Because the blade is longer, when carrying out the maintenance to wind turbine generator system, need to hoist wind turbine generator system so that the maintenance.

Chinese patent with publication number CN208964384U discloses a maintenance hoisting device for a wind turbine generator, which comprises a hoisting beam and a movable hoisting tool, wherein a plurality of blocking blocks are arranged on beam surfaces at two ends of the hoisting beam, and a clamping groove is formed between every two adjacent blocking blocks. The movable hanger comprises a hanger frame, a circular hook and a main lifting hook. The hanger frame is installed in the draw-in groove, and the circular hook links to each other with the hanger frame, and main lifting hook links to each other with the circular hook. During hoisting, the hoisting frame is clamped in different clamping grooves according to the weight and the gravity center of a hoisted object so as to selectively set a hoisting point, and then the wind turbine generator is hooked through the main hoisting hook, so that the wind turbine generator is hoisted.

Aiming at the related technology, the inventor thinks that when the wind turbine generator is hoisted, when the wind turbine generator shakes, the wind turbine generator is easy to fall off from the main lifting hook, so that the wind turbine generator falls from the high altitude.

SUMMERY OF THE UTILITY MODEL

In order to improve when hoist wind turbine generator system, wind turbine generator system easily drops from main lifting hook to lead to wind turbine generator system to follow the defect that the high altitude falls, this application provides a wind turbine generator system maintenance hoist device.

The application provides a wind turbine generator system maintenance hoist device adopts following technical scheme:

a maintenance hoisting device for a wind turbine generator comprises a hanging beam and a hanging mechanism for hanging the wind turbine generator, wherein the hanging beam is provided with a connecting mechanism for connecting with a hanging hook, the hanging mechanism comprises a hanging hook, the hanging hook is connected with the hanging beam, the hanging hook comprises a connecting part and a hook part, one end of the connecting part is connected with the hanging beam, the other end of the connecting part is connected with the hook part, the hanging hook is provided with an anti-falling unit, the anti-falling unit comprises an anti-falling rod and a fixed rod, one end of the anti-falling rod is hinged with the connecting part, one end of the hook part, far away from the connecting part, is provided with an anti-falling groove, the hook part is provided with a first through hole and a second through hole, the first through hole and the second through hole are communicated with the anti-falling groove, the fixed rod is simultaneously provided with the first through hole and the second through hole and is connected with the hook part in a sliding manner, the one end that first through-hole was kept away from to the dead lever is connected with tensile piece, the cover is equipped with extension spring on the dead lever, extension spring one end links to each other with one side that crotch portion deviates from the anticreep pole, the other end with tensile piece links to each other.

Through adopting above-mentioned technical scheme, the operator is connected hanging beam and crane hook through coupling mechanism, then colludes with the lifting hook wind turbine generator system and links to each other, then the tensile piece of pulling, the one end restriction that keeps away from the tensile piece until the dead lever is in the second through-hole, at this moment, can change over into the anticreep pole into the anticreep inslot. Then the operator loosens tensile soon, and extension spring elasticity resets, drives the dead lever and slides for the dead lever is worn to establish first through-hole, thereby with the anticreep pole restriction at anticreep inslot, thereby will make linking department of colluding of wind turbine generator system and lifting hook by the restriction in the lifting hook, reducible because of wind turbine generator system breaks away from with the lifting hook and leads to the wind turbine generator system to follow the high altitude possibility of falling.

Optionally, the fixing rod is provided with a sliding groove, the bent hook portion is provided with a protruding block at the second through hole, and the protruding block slides in the sliding groove.

Through adopting above-mentioned technical scheme, the lug is restricted and slides in the spout, and the spout plays limiting displacement to the lug to slide to play limiting displacement to the dead lever, the possibility that the dead lever and crotch portion break away from is seen to reduce.

Optionally, the suspension mechanism further includes a moving block, the moving block is connected to one end of the hook facing the hanging beam, the hanging beam penetrates through the moving block, the moving block is connected to the hanging beam in a sliding manner, a plurality of adjusting holes are formed in the hanging beam, fixing holes are formed in the moving block, adjusting rods penetrate through the fixing holes in the moving block, and the adjusting rods are in threaded connection with the adjusting holes.

By adopting the technical scheme, during hoisting, an operator can slide the moving block to adjust the position of the moving block on the hoisting beam according to the gravity center and the weight of the hoisted wind turbine generator. Then the adjusting rod penetrates through the fixing hole and extends into the adjusting hole, and then the adjusting rod is rotated, so that the adjusting rod is in threaded connection with the adjusting hole, and the adjusting of the moving block can be completed. The suspension mechanism can suspend different wind turbine generators more stably.

Optionally, the hanging beam is provided with a positioning groove, the adjusting hole is located in the positioning groove, the moving block is in clamping fit with the positioning groove, and the fixing hole is communicated with the adjusting hole.

Through adopting above-mentioned technical scheme, when the operator adjusted the movable block, with the movable block slip into the constant head tank in, the fixed orifices aligns with the regulation hole this moment, makes things convenient for the operator to adjust the pole and passes the fixed orifices and extend into the regulation hole for convenient and fast more when the operator adjusted the movable block.

Optionally, coupling mechanism includes the connecting block, set up the connecting hole that supplies the hanging hook to pass on the connecting block, the hanging beam rotates towards one side of connecting block and is connected with the regulation section of thick bamboo, the one end that the hanging beam was kept away from to the regulation section of thick bamboo rotates with the connecting block to be connected, it has the gag lever post that is used for supporting tight hanging hook to adjust section of thick bamboo internal thread connection, the lift hole has been seted up on the connecting block, the lift hole all communicates with connecting hole and regulation section of thick bamboo, the gag lever post passes in the lift hole and extends into the connecting hole, the gag lever post has seted up the spacing groove along self length direction, the connecting block is connected with the slider in lift hole department, the slider slides in the spacing groove.

By adopting the technical scheme, during hoisting, an operator hooks the hook with the connecting block through the connecting hole, then rotates the adjusting cylinder, the limiting rod is in threaded fit with the adjusting cylinder, the sliding block is limited to slide in the limiting groove, and the possibility that the sliding block and the limiting groove are matched to reduce the rotation of the limiting rod along with the adjusting cylinder is reduced. The limiting rod slides along with the rotation of the adjusting cylinder, one end of the limiting rod far away from the adjusting cylinder penetrates through the lifting hole and extends into the connecting hole, the limiting rod is abutted to the hook, the hook is abutted to the connecting block, the hook can be fixed to the connecting block, the possibility that the hanging beam and the hook shake due to the fact that the fixing block and the hook shake is generated between the fixing block and the hook during hoisting is reduced, and the possibility that the wind turbine generator shakes during hoisting is reduced.

Optionally, both ends of the hanging beam are provided with a limiting mechanism, the limiting mechanism comprises a limiting pipe and a limiting ring, the limiting pipe is sleeved at one end of the hanging beam, the limiting ring is connected with the limiting outer side, a cavity is formed in the hanging beam, both ends of the hanging beam are provided with pressing holes, the pressing holes are communicated with the cavity, the side wall of the hanging beam is provided with a first limiting hole, the side wall of the limiting pipe is provided with a second limiting hole, the first limiting hole and the second limiting hole are both communicated with the cavity, a compression spring and a pressing block are arranged in the cavity, one end of the compression spring is connected with the pressing block, the other end of the compression spring is connected with the hanging beam, one end of the pressing block, far away from the compression spring, extends out of the pressing hole and penetrates through the limiting pipe, the pressing block is hinged with a driving piece along the length direction of the pressing block, and one end of the driving piece, far away from the pressing block, is hinged with a limiting piece, one end of the limiting piece, which is far away from the transmission piece, penetrates through the first limiting hole and is clamped in the second limiting hole.

By adopting the technical scheme, when the limiting mechanism is installed, an operator sleeves the limiting pipe on the hanging beam, then presses the pressing block, the pressing block drives the driving sheet to move, the driving sheet drives the limiting sheet to shrink towards the inside of the first limiting hole, when the limiting sheet shrinks into the first limiting hole, the sliding limiting pipe is operated, at the moment, the operator can loosen the pressing block, the limiting sheet is limited in the first limiting hole through the matching of the side wall of the limiting pipe and the side wall of the hanging beam, when the limiting pipe slides to the communication between the first limiting hole and the second limiting hole, the limiting sheet is relieved from limiting, the compression spring elastically resets, the compression spring pushes the pressing block to extend out of the pressing hole, the pressing block drives the driving sheet to move, the driving sheet drives the limiting sheet to extend out of the second limiting hole, through the matching of the limiting sheet and the second limiting hole, the limiting pipe is fixed on the hanging beam, and the limiting ring has a limiting effect on the moving block, the possibility that the moving block is separated from the hanging beam when an operator slides the moving block can be reduced.

Optionally, one end of the pressing block facing the compression spring is connected with a limiting column, the compression spring is sleeved on the limiting column, and when the limiting column is abutted against the hanging beam, the limiting sheet is limited in the first limiting hole.

Through adopting above-mentioned technical scheme, press the briquetting when spacing post is contradicted with the hanging beam according to the operator, spacing piece retraction this moment is first spacing downthehole, and spacing reducible operator of post is too hard when pressing the briquetting, leads to spacing piece and first spacing hole to break away from and fall into the possibility in the cavity.

Optionally, the both sides of connecting block articulate there is the connecting rod, the locating lever is worn to be equipped with by the one end that the connecting block was kept away from to the connecting rod, be connected with the engaging lug on the hanging beam, the engaging lug is worn to establish by the locating lever, the both ends threaded connection of locating lever has the nut.

Through adopting above-mentioned technical scheme, the operator has installed stop gear after, the operator can rotate the connecting rod towards the hanging beam, then passes connecting rod and engaging lug with the locating lever, screws up the locating lever both ends with the nut again, can accomplish the installation of connecting rod. When the operator rotates the adjusting cylinder, the connecting rod can reduce the possibility that the connecting block rotates along with the adjusting cylinder, and meanwhile, the connecting rod connects the connecting block with the hanging beam, so that the connection between the connecting block and the hanging beam is further strengthened.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the anti-falling unit can reduce the possibility that the wind turbine generator falls from the high altitude due to the separation of the wind turbine generator and the lifting hook;

2. the possibility that the hanging beam and the lifting hook shake due to shaking generated between the fixed block and the hanging hook during hoisting can be reduced by matching the adjusting cylinder with the limiting rod;

3. through the setting of stop gear, reducible operator when sliding the movable block, the movable block breaks away from the possibility of hanging the roof beam.

Drawings

FIG. 1 is an overall structure schematic diagram of a wind turbine generator maintenance hoisting device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a connection mechanism according to an embodiment of the present application.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic structural view of a suspension mechanism according to an embodiment of the present application.

Fig. 5 is an enlarged view of a portion B in fig. 4.

Fig. 6 is a schematic structural diagram for embodying a limiting mechanism in the embodiment of the present application.

Fig. 7 is a sectional view taken along a-a of fig. 6.

Fig. 8 is an enlarged view of a portion C in fig. 1.

Description of reference numerals: 1. a hanging beam; 11. an adjustment hole; 2. a suspension mechanism; 21. a hook; 22. a moving block; 221. a fixing hole; 23. adjusting a rod; 24. a limiting block; 25. positioning a groove; 211. a connecting portion; 212. a hook portion; 3. an anti-drop unit; 31. an anti-drop rod; 32. fixing the rod; 321. a chute; 33. a drop-proof groove; 34. a first through hole; 35. a second through hole; 351. a bump; 36. stretching the block; 37. an extension spring; 4. a connecting mechanism; 41. connecting blocks; 411. connecting holes; 412. a lifting hole; 42. an adjusting cylinder; 421. a push rod; 43. a limiting rod; 431. a limiting groove; 432. a cushion pad; 44. a slider; 5. a limiting mechanism; 51. a limiting pipe; 511. a second limiting hole; 52. a limiting ring; 53. a cavity; 54. pressing the hole; 55. a first limit hole; 56. a compression spring; 57. a pressing block; 571. a limiting column; 58. a driving strap; 59. a limiting sheet; 6. a connecting rod; 61. positioning a rod; 62. connecting lugs; 63. and a nut.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses a maintenance hoisting device for a wind turbine generator.

Referring to fig. 1, the maintenance hoisting device for the wind turbine generator comprises a hoisting beam 1, a connecting mechanism 4, a suspension mechanism 2 and a limiting mechanism 5. The connecting mechanism 4 is located in the middle of the hanging beam 1, and the connecting mechanism 4 is used for connecting the hanging beam 1 with a hanging hook. The two suspension mechanisms 2 are arranged, the two suspension mechanisms 2 are respectively arranged on two sides of the connecting mechanism 4, the suspension mechanisms 2 are connected with the hanging beam 1 in a sliding mode, and the suspension mechanisms 2 are used for suspending the wind turbine generator. The two limiting mechanisms 5 are arranged, the two limiting mechanisms 5 are detachably connected to two ends of the hanging beam 1 respectively, and the limiting mechanisms 5 limit the hanging mechanism 2 so as to reduce the possibility that the hanging mechanism 2 is separated from the hanging beam 1 in the sliding process.

Referring to fig. 1 and 2, the connection mechanism 4 includes a connection block 41, and a connection hole 411 is formed in the connection block 41, and the connection hole 411 is used for connecting to a hook. The both sides of connecting block 41 articulate there is connecting rod 6, and connecting rod 6 keeps away from the one end of connecting block 41 and can dismantle with stop gear 5 and be connected. One end of the connecting block 41 facing the hanging beam 1 is rotatably connected with an adjusting cylinder 42, and one end of the adjusting cylinder 42 far away from the connecting block 41 is rotatably connected with the center of the hanging beam 1.

Referring to fig. 2 and 3, a limiting rod 43 is connected to the adjusting cylinder 42 through internal threads, and the limiting rod 43 is used for tightly abutting against the crane hook. Two push rods 421 are fixedly connected to the outer side wall of the adjusting cylinder 42. The connecting block 41 is provided with a lifting hole 412, and the limiting rod 43 passes through the lifting hole 412 and extends to form a connecting hole 411. Limiting grooves 431 are formed in the two sides of the limiting rod 43 in the length direction, the connecting block 41 is fixedly connected with a sliding block 44 at the lifting hole 412, and the sliding block 44 is connected and matched with the limiting grooves 431 in a sliding mode. A buffer pad 432 is bonded to an end of the limiting rod 43 away from the adjusting cylinder 42. The cushion 432 serves to reduce the likelihood of wear of the restraint bar 43 directly interfering with the hitch.

Referring to fig. 2 and 3, during hoisting, a crane hook is hung in the connecting hole 411, then the push rod 421 is pushed, the push rod 421 drives the adjusting cylinder 42 to rotate, the slide block 44 is limited to slide in the limiting groove 431, the adjusting cylinder 42 drives the screw rod to move upwards until the cushion pad 432 is abutted against the crane hook, the crane hook is abutted against the connecting block 41 at the moment, the crane hook is fixed in the connecting hole 411, the possibility of shaking between the fixed block and the crane hook can be reduced, and the hoisting is more stable. The connecting rod 6 limits the connecting block 41, and when an operator rotates the adjusting cylinder 42, the connecting rod 6 can reduce the possibility that the connecting block 41 rotates along with the adjusting cylinder 42.

Referring to fig. 1 and 4, the suspension mechanism 2 includes a moving block 22 and a hook 21, the suspension beam 1 passes through the moving block 22, and the moving block 22 is slidably connected to the suspension beam 1. The hook 21 is fixedly connected below the moving block 22. A plurality of positioning grooves 25 are formed in the hanging beam 1, the moving block 22 is matched with the positioning grooves 25 in a clamping mode, a plurality of adjusting holes 11 are formed in the hanging beam 1, and one adjusting hole 11 corresponds to one positioning groove 25. One side of the moving block 22, which is far away from the hook 21, is provided with a fixing hole 221, the adjusting hole 11 is communicated with the fixing hole 221, the connecting block 41 penetrates through the adjusting rod 23 at the adjusting hole 11, and the adjusting rod 23 is in threaded connection with the adjusting hole 11. And one side of the adjusting rod 23 far away from the hanging beam 1 is fixedly connected with a limiting block 24.

Referring to fig. 4 and 5, the hook 21 includes a connection portion 211 and a hook portion 212, where one end of the connection portion 211 is fixedly connected to the moving block 22 and the other end is fixedly connected to the hook portion 212. The hook 21 is provided with an anti-drop unit 3, and the anti-drop unit 3 comprises an anti-drop rod 31 and a fixed rod 32. The hook portion 212 is provided with a separation-preventing groove 33 at one end away from the connecting portion 211, one end of the separation-preventing rod 31 is hinged to the connecting portion 211, and the other end of the separation-preventing rod passes through the separation-preventing groove 33 and is limited in the separation-preventing groove 33. The hook part 212 is provided with a first through hole 34 and a second through hole 35 at the anti-falling groove 33, the first through hole 34 and the second through hole 35, the fixing rod 32 simultaneously penetrates through the first through hole 34 and the second through hole 35, and the fixing rod 32 is slidably connected with the hook part 212. The fixing rod 32 is provided with a sliding groove 321, the hook portion 212 is fixedly connected with a projection 351 at the second through hole 35, and the projection 351 slides in the groove. One end of the fixing rod 32 far away from the first through hole 34 is fixedly connected with an extension block 36, an extension spring 37 is sleeved on the fixing rod 32, one end of the extension spring 37 is fixedly connected with the extension block 36, and the other end of the extension spring is fixedly connected with one side of the hook part 212 far away from the anti-falling rod 31.

Referring to fig. 4 and 5, during hoisting, an operator hangs the wind turbine generator on the hook portion 212, and then pulls the stretching block 36 away from the hook portion 212, so that the stretching block 36 drives the fixing rod 32 to move until the protrusion 351 abuts against the wall of the sliding groove 321, and at this time, the notch of the anti-drop groove 33 is opened. The sliding slot 321 limits the protrusion 351, so that the possibility that the fixing rod 32 is separated from the hook 212 due to too much force when the operator pulls the stretching block 36 can be reduced. An operator rotates the anti-falling rod 31 into the anti-falling groove 33, then loosens the stretching block 36, the stretching spring 37 elastically resets, the stretching spring 37 drives the fixing rod 32 to penetrate through the second through hole 35, the fixing rod 32 seals the notch of the anti-falling groove 33, and the possibility that the wind turbine generator system breaks away from the lifting hook 21 can be reduced. Then the operator can be according to the weight and the focus of the wind turbine generator system of hoist and mount, slip movable block 22 for movable block 22 and the constant head tank 25 joint that corresponds, then wear to establish regulation hole 11 and fixed orifices 221 with anticreep pole 31, and with

anticreep pole

31 and 11 threaded connection in regulation hole, can be fixed with movable block 22, make the wind turbine generator system can the balanced suspension. The positioning groove 25 may allow an operator to more conveniently and quickly align the adjusting hole 11 with the fixing hole 221.

Referring to fig. 6 and 7, the limiting mechanism 5 includes a limiting pipe 51 and a limiting ring 52, and the limiting pipe 51 is sleeved on one end of the hanging beam 1. The retainer ring 52 is fixedly connected to the outer side wall of the retainer tube 51. Two ends of the hanging beam 1 are provided with pressing holes 54, and the hanging beam 1 is provided with a cavity 53 communicated with the pressing holes 54 through the cavity 53. The cavity 53 is internally provided with a pressing block 57, and the pressing block 57 extends out of the pressing hole 54 and penetrates through the limiting pipe 51. One end of the pressing block 57, which is far away from the pressing hole 54, is fixedly connected with a limiting column 571, the limiting column 571 is sleeved with a compression spring 56, one end of the compression spring 56 is fixedly connected with the pressing block 57, and the other end is fixedly connected with the side wall of the cavity 53. The both sides of pressing the piece 57 along self length direction are articulated to have a drive strap 58, and the one end that the drive strap 58 kept away from pressing the piece 57 is articulated to have spacing piece 59. First limiting holes 55 are formed in two sides of the hanging beam 1, the first limiting holes 55 are communicated with the cavity 53, second limiting holes 511 are formed in the side wall of the limiting pipe 51, and the second limiting holes 511 are communicated with the first limiting holes 55. The limiting piece 59 penetrates through the first limiting hole 55 to extend and be clamped in the second limiting hole 511, and the limiting piece 59 is connected with the hanging beam 1 and the limiting pipe 51 in a sliding mode.

Referring to fig. 6 and 7, when the limiting mechanism 5 is installed, an operator sleeves the limiting tube 51 on the hanging beam 1, and then presses the pressing block 57 toward the cavity 53 until the limiting post 571 abuts against the side wall of the cavity 53, the pressing block 57 drives the driving piece 58 to move, and the driving piece 58 drives the limiting piece 59 to contract into the first limiting hole 55. At this moment, the operator inserts the two ends of the hanging beam 1 into the limiting pipe 51, so that the first limiting hole 55 is aligned with the second limiting hole 511, the operator loosens the pressing block 57, the compression spring 56 elastically resets to push the pressing block 57 to move outwards from the cavity 53, the pressing block 57 drives the driving piece 58 to move, and the driving piece 58 drives the limiting piece 59 to slide towards the second limiting hole 511 until the limiting piece 59 is clamped in the second limiting hole 511. The limiting piece 59 fixes the limiting pipe 51 on the hanging beam 1, so that the limiting ring 52 is fixed on the hanging beam 1, and the limiting ring 52 can reduce the possibility that the moving block 22 is separated from the hanging beam 1 when an operator slides the moving block 22. When detaching the stopper mechanism 5, the operator presses the pressing block 57 and then removes the stopper tube 51 from the suspension beam 1. After removing the limiting mechanism 5, the operator can add or reduce the suspension mechanism 2 to the hanging beam 1.

Referring to fig. 8, the limiting cylinder is connected with two connecting lugs 62, the two connecting lugs 62 are respectively located on two sides of the connecting rod 6, the connecting rod 6 is provided with a positioning rod 61 in a penetrating mode, the positioning rod 61 penetrates through the connecting lugs 62, and two ends of the positioning rod 61 are connected with nuts 63 in a threaded mode. When detaching the connecting rod 6 from the limiting tube 51, the operator unscrews the nut 63 from the positioning rod 61, and then takes the positioning rod 61 off from the connecting rod 6 and the connecting lug 62, so that the detachment of the connecting rod 6 can be completed. After detaching the connecting rod 6 from the stopper tube 51, the operator can detach the stopper mechanism 5 from the suspension beam 1.

The implementation principle of the wind turbine generator maintenance hoisting device in the embodiment of the application is as follows: during hoisting, an operator installs the limiting pipe 51 and the limiting ring 52 at two ends of the hoisting beam 1, and fixes the connecting rod 6 on the limiting pipe 51. The operator hooks the hook with the connecting block 41, and then rotates the adjusting cylinder 42 to make the limiting rod 43 tightly abut against the hook. The wind turbine generator is hung on the hook 21, and one end of the anti-falling rod 31 far away from the connecting part 211 is limited in the anti-falling groove 33. And then sliding the moving block 22 according to the weight and the gravity center of the wind turbine generator, and then fixing the moving block 22 through the adjusting rod 23, so that the wind turbine generator can be suspended in a balanced manner.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a wind turbine generator system maintenance hoist device which characterized in that: comprises a hanging beam (1) and a suspension mechanism (2) for suspending a wind turbine generator, wherein the hanging beam (1) is provided with a connecting mechanism (4) for connecting with a hanging hook, the suspension mechanism (2) comprises a hanging hook (21), the hanging hook (21) is connected with the hanging beam (1), the hanging hook (21) comprises a connecting part (211) and a hook part (212), one end of the connecting part (211) is connected with the hanging beam (1), the other end of the connecting part is connected with the hook part (212), the hanging hook (21) is provided with an anti-falling unit (3), the anti-falling unit (3) comprises an anti-falling rod (31) and a fixed rod (32), one end of the anti-falling rod (31) is hinged with the connecting part (211), one end of the hook part (212) far away from the connecting part (211) is provided with an anti-falling groove (33), one end of the anti-falling rod (31) far away from the connecting part (211) is provided with the anti-falling groove (33), first through-hole (34) and second through-hole (35) have been seted up on hook portion (212), first through-hole (34) all communicate with anticreep groove (33) with second through-hole (35), dead lever (32) wear to establish first through-hole (34) and second through-hole (35) simultaneously and with hook portion (212) sliding connection, the one end of keeping away from first through-hole (34) dead lever (32) is connected with stretching block (36), the cover is equipped with extension spring (37) on dead lever (32), one side that extension spring (37) one end and hook portion (212) deviate from anticreep pole (31) links to each other, the other end with stretching block (36) link to each other.

2. The wind turbine generator maintenance hoisting device of claim 1, characterized in that: a sliding groove (321) is formed in the fixing rod (32), a protruding block (351) is arranged at the second through hole (35) of the bent hook portion (212), and the protruding block (351) slides in the sliding groove (321).

3. The wind turbine generator maintenance hoisting device of claim 1, characterized in that: the suspension mechanism (2) further comprises a moving block (22), the moving block (22) is connected with one end, facing the hanging beam (1), of the lifting hook (21), the hanging beam (1) penetrates through the moving block (22), the moving block (22) is in sliding connection with the hanging beam (1), a plurality of adjusting holes (11) are formed in the hanging beam (1), fixing holes (221) are formed in the moving block (22), adjusting rods (23) penetrate through the moving block (22) at the fixing holes (221), and the adjusting rods (23) are in threaded connection with the adjusting holes (11).

4. The wind turbine generator maintenance hoisting device of claim 3, characterized in that: the hanging beam (1) is provided with a positioning groove (25), the adjusting hole (11) is located in the positioning groove (25), the moving block (22) is in clamping fit with the positioning groove (25), and the fixing hole (221) is communicated with the adjusting hole (11).

5. The wind turbine generator maintenance hoisting device of claim 1, characterized in that: the connecting mechanism (4) comprises a connecting block (41), a connecting hole (411) for the hook to pass through is formed in the connecting block (41), one side of the hanging beam (1) facing the connecting block (41) is rotatably connected with an adjusting cylinder (42), one end of the adjusting cylinder (42) far away from the hanging beam (1) is rotationally connected with the connecting block (41), a limiting rod (43) for abutting against the hook is connected with the internal thread of the adjusting cylinder (42), the connecting block (41) is provided with a lifting hole (412), the lifting hole (412) is communicated with the connecting hole (411) and the adjusting cylinder (42), the limiting rod (43) passes through the lifting hole (412) and extends into the connecting hole (411), the limiting rod (43) is provided with a limiting groove (431) along the length direction, the connecting block (41) is connected with a sliding block (44) at the lifting hole (412), and the sliding block (44) slides in a limiting groove (431).

6. The wind turbine generator maintenance hoisting device of claim 5, characterized in that: the lifting beam is characterized in that limiting mechanisms (5) are arranged at two ends of the lifting beam (1), each limiting mechanism (5) comprises a limiting pipe (51) and a limiting ring (52), the limiting pipe (51) is sleeved at one end of the lifting beam (1), the limiting ring (52) is connected with the outer side of the limiting pipe (51), a cavity (53) is formed in the lifting beam (1), pressing holes (54) are formed at two ends of the lifting beam (1), the pressing holes (54) are communicated with the cavity (53), a first limiting hole (55) is formed in the side wall of the lifting beam (1), a second limiting hole (511) is formed in the side wall of the limiting pipe (51), the first limiting hole (55) and the second limiting hole (511) are communicated with the cavity (53), a compression spring (56) and a pressing block (57) are arranged in the cavity (53), one end of the compression spring (56) is connected with the pressing block (57), the other end of the pressing block (57) is connected with the hanging beam (1), one end, far away from the compression spring (56), of the pressing block (57) extends out of the pressing hole (54) and penetrates through the limiting pipe (51), the pressing block (57) is hinged to a transmission sheet (58) along the length direction of the pressing block, one end, far away from the pressing block (57), of the transmission sheet (58) is hinged to a limiting sheet (59), and one end, far away from the transmission sheet (58), of the limiting sheet (59) penetrates through a first limiting hole (55) and is clamped in a second limiting hole (511).

7. The wind turbine generator maintenance hoisting device of claim 6, characterized in that: one end, facing the compression spring (56), of the pressing block (57) is connected with a limiting column (571), the compression spring (56) is sleeved on the limiting column (571), and when the limiting column (571) abuts against the hanging beam (1), the limiting sheet (59) is limited in the first limiting hole (55).

8. The wind turbine generator maintenance hoisting device of claim 6, characterized in that: the both sides of connecting block (41) articulate there is connecting rod (6), locating lever (61) are worn to be equipped with in the one end that connecting block (41) were kept away from in connecting rod (6), be connected with engaging lug (62) on hanging beam (1), engaging lug (62) are worn to establish in locating lever (61), the both ends threaded connection of locating lever (61) has nut (63).