CN218717280U - Blade and bearing separation system of wind driven generator - Google Patents

Abstract

The utility model relates to the technical field of blade replacement of wind driven generators, in particular to a blade and bearing separation system of a wind driven generator, which comprises a bearing pressing plate assembly, wherein the bearing pressing plate assembly is used for being fixedly connected with a variable-pitch bearing, and an upper pulley group is fixedly arranged on the bearing pressing plate assembly; one end of the blade bolt is used for being inserted into a blade hole of the wind driven generator blade and connected with the wind driven generator blade; the blade lifting plate assembly is fixedly connected with a blade bolt, an electric lifting appliance and a lower pulley block are fixedly arranged on the blade lifting plate assembly, and one end of a steel wire rope on the electric lifting appliance is sequentially wound around the lower pulley block and is connected with the blade lifting plate assembly behind the upper pulley block. The utility model has the advantages that: the blade of the wind driven generator is conveniently separated from the bearing, the blade of the wind driven generator is prevented from being separated from the bearing by using a main crane or a lifting ship, and the replacement cost of the blade of the wind driven generator is greatly reduced.

Description

Blade and bearing separation system of wind driven generator

Technical Field

The utility model relates to a technical field is changed to the aerogenerator blade, especially relates to an aerogenerator blade and bearing piece-rate system.

Background

At present, the blades of the onshore or offshore wind driven generator are replaced by hoisting work completed by a crane or a hoisting ship, and a main crane or the hoisting ship with enough tonnage and arm length must be hired; the required tonnage of the crane or the lifting ship is larger and larger, the arm length is longer and longer, and the cost is more and more expensive.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a aerogenerator blade and bearing piece-rate system is provided, makes things convenient for the separation of blade and bearing, reduces aerogenerator blade replacement cost.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a blade and bearing separation system of a wind driven generator is used for replacing screw connection between a blade and a bearing by a universal lifting appliance such as an electric lifting appliance before lifting, and realizing separation of the blade and the bearing under the action of the gravity of the blade and the universal lifting appliance, and comprises

The bearing pressing plate assembly is used for replacing an original connecting nut and is fixedly connected with the variable-pitch bearing, and an upper pulley set is fixedly arranged on the bearing pressing plate assembly;

one end of the blade bolt is used for replacing an original T-shaped nut and is inserted into a blade hole of the wind driven generator blade to be connected with the wind driven generator blade;

the blade lifting plate assembly is fixedly connected with the blade bolt, an electric lifting appliance and a lower pulley block are fixedly arranged on the blade lifting plate assembly, and one end of a steel wire rope on the electric lifting appliance is sequentially wound around the lower pulley block and the rear part of the upper pulley block and connected with the blade lifting plate assembly.

The utility model has the advantages that: the utility model discloses a with bearing clamp plate subassembly and bearing fixed connection, through blade bolt and blade lifting plate subassembly and aerogenerator blade fixed connection, then realize interconnect between them through electric hoist, thereby realize supporting the aerogenerator blade after the connecting bolt of bearing and blade takes off, realize slowly falling of aerogenerator blade through electric hoist, make things convenient for the separation of aerogenerator blade and bearing, avoid using main crane or hoist and mount ship to separate aerogenerator blade and bearing, greatly reduced the replacement cost of aerogenerator blade.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, the bearing pressing plate assembly comprises two bearing pressing plates symmetrically arranged on the inner side of the inner ring of the pitch bearing, the upper pulley groups are fixedly arranged on the two bearing pressing plates, and the two upper pulley groups are fixedly connected through first connecting pieces used for supporting the two upper pulley groups.

The beneficial effect of adopting the further scheme is that: the bearing pressing plates are connected to the inner ring of the variable-pitch bearing, and the two bearing pressing plates are supported through the first connecting piece, so that the two bearing pressing plates cannot be separated from the variable-pitch bearing in the using process.

Furthermore, the bearing pressing plate comprises a transverse plate arranged on the inner ring of the variable-pitch bearing and a longitudinal plate fixedly connected with the side edge of the transverse plate in an integrated manner, a positioning column used for being inserted into a screw hole of the inner ring of the variable-pitch bearing is arranged on the transverse plate, and the upper pulley assembly is fixedly arranged on the outer wall of the longitudinal plate.

The beneficial effect of adopting the further scheme is that: the bearing pressure plate adopts a transverse plate and a longitudinal plate structure which are connected with each other, the transverse plate is arranged on the inner ring of the variable pitch bearing, and then the two transverse plates are not close to each other through the opening action of the first connecting piece, so that the bearing pressure plate is separated from the inner ring of the variable pitch bearing.

Further, the quantity of first connecting piece is more than one, every first connecting piece all includes two first connecting pipes, two first connecting pipe respectively with two go up the pulley block and connect, just the one end of first connecting pipe with the pulley shaft fixed connection of last pulley block, two first connecting pipe coaxial line sets up, all fixed first connecting plate that is equipped with on the other end of first connecting pipe, all be equipped with the connecting hole on the first connecting plate, two first connecting plate is connected through a plurality of double-end screw and nut.

The beneficial effect of adopting the further scheme is that: the first connecting plates on the two first connecting pipes are connected through the double-end screw and the nuts, so that the distance between the first connecting plates can be conveniently adjusted, and the bearing pressing plate is convenient to mount and stabilize.

Furthermore, the number of the blade lifting plate assemblies is two, the two blade lifting assemblies and the two bearing pressing plates are arranged in a one-to-one correspondence manner, each blade lifting plate assembly comprises a fixed plate and an electric lifting appliance mounting plate, the electric lifting appliance mounting plates are arranged on one surface of the fixed plate at intervals, the fixed plate and the electric lifting appliance mounting plates are fixedly connected through connecting rods, connecting seams for connecting blade bolts are arranged on the fixed plate, the electric lifting appliances are fixedly arranged on one surfaces, far away from the fixed plate, of the electric lifting appliance mounting plates, and the lower pulley block is fixed on the fixed plate; and the two fixing plates are fixedly connected through a second connecting piece.

The beneficial effect of adopting the further scheme is that: the blade lifting plate assembly adopts a structure of fixing plates and electric lifting appliance mounting plates which are arranged at intervals, so that the mounting space is increased, and the electric lifting appliance is convenient to mount and is connected with a blade bolt.

Furthermore, every the fixed plate all with a plurality of blade bolt connection, be equipped with on the lateral wall of blade bolt a plurality of be used for with the connecting screw that the fixed plate is connected, connecting screw passes behind the joint seam be connected with the nut.

The beneficial effect of adopting the further scheme is that: thereby the blade bolt passes through connecting screw and is connected with the nut after the joint line and realize being connected with the fixed plate, and the installation is dismantled conveniently.

Furthermore, the blade bolt is provided with a screw hole on the side wall of one end of the blade hole for inserting the blade of the wind driven generator, so that the separated blades can be conveniently connected.

The beneficial effect of adopting the further scheme is that: the side wall of one end of the blade bolt, which is inserted into the blade hole of the wind driven generator blade, is provided with the screw rod hole, so that the blade can be connected after the blade is separated from the variable-pitch bearing, and subsequent blade hoisting is facilitated.

Furthermore, a lifting lug is fixedly arranged on the fixing plate, a lifting hook is fixedly arranged at one end of a steel wire rope of the electric lifting appliance, and the lifting hook is connected with the lifting lug.

The beneficial effect of adopting the further scheme is that: the lifting lugs are arranged to facilitate connection of the steel wire rope of the electric lifting appliance and the fixing plate.

Further, the second connecting piece includes two second connecting pipes, two the one end one-to-one of second connecting pipe passes through connecting seat and two fixed plate fixed connection, two the coaxial setting of second connecting pipe, just the other end of second connecting pipe all is fixed and is equipped with the second connecting plate, all be equipped with the connecting hole on the second connecting plate, two on the second connecting pipe the second connecting plate is connected through a plurality of double-end screw and nut.

The beneficial effect of adopting the further scheme is that: the second connecting plates on the two second connecting pipes are connected through the double-end screw and the nuts, and the mounting and the dismounting are convenient.

Furthermore, the upper pulley set comprises an upper mounting seat and two upper pulleys, the two upper pulleys are fixedly arranged on one surface of the upper mounting seat, the axes of the two upper pulleys are arranged in parallel, and the axes of the two upper pulleys are perpendicular to the upper mounting seat; the lower pulley group includes mount pad and two lower pulleys, two the lower pulley passes through the mounting bracket to be fixed to be established on the mount pad down, two the axis parallel arrangement of lower pulley, and two the axis of lower pulley with mount pad parallel arrangement down.

Further, be equipped with the column spinner on the blade promotes the board subassembly and set up respectively the erection column of column spinner both sides, be equipped with down on the mount pad with the rotatory hole that the column spinner corresponds and with the installation strip groove that the erection column corresponds, the column spinner is inserted and is established in the rotatory hole, the erection column is inserted and is established installation strip inslot and with nut threaded connection, the axis of lower pulley with the axis slope of upper pulley sets up, guarantees winding steel wire's progressive.

The beneficial effect of adopting the above further scheme is: the upper pulley block and the lower pulley block both adopt two pulleys, so that the supporting force of the blades of the wind driven generator can be ensured, and the diameter of the steel wire rope is reduced by winding.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic perspective view of a bearing pressing plate according to the present invention;

fig. 3 is a schematic perspective view of a bearing pressing plate according to the present invention;

fig. 4 is a schematic perspective view of the blade plug of the present invention;

fig. 5 is a schematic perspective view of a blade lifting plate assembly according to the present invention;

fig. 6 is a schematic perspective view of a blade lifting plate assembly according to the present invention;

fig. 7 is a schematic perspective view of a second connecting member according to the present invention;

fig. 8 is a schematic view of the connection between the first connecting rod and the upper pulley set according to the present invention;

fig. 9 is a schematic perspective view of a lower pulley block according to the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1. a bearing platen assembly; 11. a transverse plate; 12. a longitudinal plate; 13. a positioning column; 14. a first connecting pipe; 15. a first connecting plate; 2. an upper pulley set; 21. an upper mounting seat; 22. an upper pulley; 3. a blade latch; 31. connecting a screw rod; 32. a screw connecting hole; 4. a blade lift plate assembly; 41. a fixing plate; 42. an electric sling mounting plate; 43. a connecting rod; 44. connecting seams; 45. lifting lugs; 46. a second connecting pipe; 47. a connecting seat; 48. a second connecting plate; 5. an electric hoist; 6. a lower pulley block; 61. a lower mounting seat; 62. a lower pulley; 7. a double-ended screw.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1, an embodiment of the present invention includes a bearing pressure plate assembly 1, where the bearing pressure plate assembly 1 is used to be fixedly connected with a pitch bearing, and an upper pulley set 2 is fixedly arranged on the bearing pressure plate assembly 1; one end of the blade bolt 3 is used for being inserted into a blade hole of the wind driven generator blade and connected with the wind driven generator blade; blade lifting plate subassembly 4, blade lifting plate subassembly 4 with 3 fixed connection of blade bolt, fixed electric hoist 5 and the lower pulley group 6 of being equipped with on the blade lifting plate subassembly 4, wire rope's on the electric hoist 5 one end is walked around in proper order lower pulley group 6 behind the upper pulley group 2 with blade lifting plate subassembly 4 is connected, and is specific, fixed lug 45 that is equipped with on the blade lifting plate subassembly 4, the fixed lifting hook that is equipped with in wire rope's of electric hoist 5 one end, the lifting hook with lug 45 is connected. The embodiment of the present invention provides an electric hoist 5, which can be an electric hoist or a winch, or other electric hoists commonly used in the prior art, and is within the protection scope of the present application.

In the prior art of the utility model, the hub of the wind driven generator is integral cast iron, three pitch bearings are installed on the hub, and the outer ring of the general pitch bearing is connected with the hub and is in a static state; the inner ring is connected with the blade and can rotate, the variable pitch bearing comprises a bearing main body, the periphery of the bearing main body is connected with the wind driven generator blade through a T-shaped nut (arranged inside the wind driven generator blade), a screw (penetrating through a bearing hole) and a bearing end nut (above the bearing hole), and the connection of the variable pitch bearing and the wind driven generator blade is conventional technology in the field and is not specifically described here.

Specifically, as shown in fig. 1, the bearing pressure plate assembly 1 includes two bearing pressure plates symmetrically arranged on the inner side of the inner ring of the pitch bearing, the two bearing pressure plates are both fixedly provided with the upper pulley set 2, the upper pulley set 2 is fixedly connected with the bearing pressure plates through a bolt or a screw and nut connection manner, the two upper pulley sets 2 are fixedly connected with each other through a first connecting piece for supporting the two upper pulley sets 2, the bearing pressure plates are connected to the inner ring of the pitch bearing, and the two bearing pressure plates are supported through the first connecting piece, so that the two bearing pressure plates are prevented from being separated from the pitch bearing in the use process.

In this embodiment, as shown in fig. 2 and fig. 3, the bearing pressure plate includes a transverse plate 11 used for being disposed between an inner ring of the pitch bearing and a hub of the pitch bearing, and a longitudinal plate 12 integrally and fixedly connected to a side edge of the transverse plate 11, the transverse plate 11 and the longitudinal plate 12 are vertically disposed (a certain included angle may exist), the transverse plate 11 is provided with a positioning pillar 13 used for being inserted into a connecting hole of the inner ring of the pitch bearing (the connecting hole of the inner ring refers to a hole connected to a blade of a wind turbine generator through a screw, and is a prior art in the field), and the upper pulley group 2 is fixedly disposed on an outer wall of the longitudinal plate 12. The bearing pressure plate adopts a structure of the transverse plates 11 and the longitudinal plates 12 which are connected with each other, the transverse plates 11 are arranged between the inner ring of the variable pitch bearing and the hub of the variable pitch bearing, and then the two transverse plates 11 are not close to each other through the distraction action of the first connecting piece, so that the bearing pressure plate is separated from the inner ring of the variable pitch bearing. In order to facilitate the installation of the upper pulley assembly 2, an orientation cylinder and a threaded column are fixedly arranged on the outer wall of the longitudinal plate 12, and when the upper pulley assembly 2 is installed, the orientation cylinder is inserted into the upper pulley assembly 2 and is connected with the threaded column penetrating through the upper pulley assembly 2 through a nut.

As shown in fig. 1 and 8, the quantity of first connecting piece is more than one, every first connecting piece all includes two first connecting pipes 14, two first connecting pipes 14 respectively with two go up pulley set 2 and connect, just first connecting pipe 14 one end with the pulley shaft fixed connection of going up pulley set 2, first connecting pipe 14 with the pulley shaft of going up pulley set 2 can be for integration fixed knot structure, two first connecting pipe 14 coaxial line sets up, all be fixed with first connecting plate 15 on first connecting pipe 14's the other end, all be equipped with the connecting hole on first connecting plate 15, two first connecting plate 15 is connected through a plurality of double-end screw 7 and nut. Connect first connecting plate 15 on two first connecting pipes 14 through double-end screw 7 and nut, can conveniently adjust the distance between first connecting plate 15, the installation and the firm of the bearing clamp plate of being convenient for.

In this embodiment, the number of the blade lifting plate assemblies 4 is two, the two blade lifting assemblies and the two bearing pressing plates are arranged in a one-to-one correspondence manner, as shown in fig. 5 and 6, each blade lifting plate assembly 4 includes a fixed plate 41 and an electric hanger mounting plate 42, the electric hanger mounting plates 42 are arranged on one surface of the fixed plate 41 at intervals, the fixed plate 41 and the electric hanger mounting plates 42 are fixedly connected through a connecting rod 43, a connecting seam 44 for connecting with the blade latch 3 is arranged on the fixed plate 41, the electric hanger 5 is fixedly arranged on one surface of the electric hanger mounting plate 42 away from the fixed plate 41, and the lower pulley block 6 is fixed on the fixed plate 41; two through second connecting piece fixed connection between the fixed plate 41, blade promotes the structure that the fixed plate 41 and the electric hoist mounting panel 42 that the board subassembly 4 adopted the interval to set up, increase installation space, the installation of the electric hoist 5 of being convenient for and the connection of blade bolt 3. Be equipped with on the fixed plate 41 be used for with the screw thread post that connecting seat 47 is connected and be used for the screw thread post of being connected with lower pulley block 6, the cooperation through the nut so that can dismantle with second connecting piece and lower pulley block 6 and be connected, be equipped with the connecting hole on the electric hoist mount pad 42 to in installation electric hoist 5.

Preferably, each fixing plate 41 is connected to a plurality of blade pins 3, as shown in fig. 4, a screw connecting hole 32 is formed in a side wall of one end, used for being inserted into a blade hole of a blade of the wind turbine, of each blade pin 3, so that after the blade is separated from the pitch bearing, the blade can be connected, and subsequent blade hoisting is facilitated.

Be equipped with a plurality of being used for on the lateral wall of blade bolt 3 with connecting screw 31 that fixed plate 41 is connected, connecting screw 31 passes behind the joint 44 is connected with the nut, thereby blade bolt 3 passes behind the joint 44 through connecting screw 31 and is connected with the nut and realize being connected with fixed plate 41, and the installation is dismantled conveniently.

As shown in fig. 7, the second connecting piece includes two second connecting pipes 46, two the one end one-to-one of second connecting pipe 46 passes through connecting seat 47 and two fixed connection of fixed plate 41, connecting seat 47 pass through the bolt with fixed connection, two can be dismantled to fixed plate 41 the coaxial setting of second connecting pipe 46, just the other end of second connecting pipe 46 all fixedly is equipped with second connecting plate 48, the quantity of second connecting plate 48 is more than one, all be equipped with the connecting hole on the second connecting plate 48, two on the second connecting pipe 46 second connecting plate 48 is connected through a plurality of double-end screw 7 and nut, connects the second connecting plate 48 on two second connecting pipes 46 through double-end screw 7 and nut, and the installation is dismantled conveniently.

As shown in fig. 8, the upper pulley set 2 includes an upper mounting seat 21 and two upper pulleys 22, the two upper pulleys 22 are fixedly disposed on one surface of the upper mounting seat 21, the axes of the two upper pulleys 22 are disposed in parallel, and the axes of the two upper pulleys 22 are disposed perpendicular to the upper mounting seat 21; as shown in fig. 9, the lower pulley block 6 includes a lower mounting seat 61 and two lower pulleys 62, two lower pulleys 62 are fixedly arranged on the lower mounting seat 61 through a mounting bracket, two axes of the lower pulleys 62 are arranged in parallel, and two axes of the lower pulleys 62 are arranged in parallel with the lower mounting seat 61, and the upper pulley block 2 and the lower pulley block 6 both adopt two pulleys, so that the supporting force for the wind turbine blade can be ensured.

Be equipped with the column spinner on the blade lifting plate subassembly and set up respectively the erection column of column spinner both sides, be equipped with down on the mount pad 61 with the rotatory hole that the column spinner corresponds and with the installation bar groove that the erection column corresponds, the column spinner is inserted and is established in the rotatory hole, the erection column is inserted and is established installation bar inslot and with nut threaded connection, down pulley 62 the axis with the axis slope setting of upper pulley 22 guarantees winding steel wire's progressive.

The installation steps of the separation system in this embodiment are as follows:

rotating the rear edge (knife edge) of a lower blade (a wind driven generator blade to be taken down) to the front, and respectively taking down 5 nuts, bolts and T-shaped nuts (the nuts, the bolts and the T-shaped nuts are connecting pieces for connecting the wind driven generator blade and a bearing) at the bilaterally symmetrical positions;

because the replaced blade is positioned below the blade, the load required for supporting the blade is small, in order to reduce the workload of taking the nut after the tool is installed, redundant nuts can be taken down in advance, and only working nuts are reserved;

inserting a blade bolt 3 into a blade hole of the removed T-shaped nut, and enabling the connecting screw rod 31 to be arranged downwards;

installing a blade lifting plate assembly 4 below the blade bolt 3, and fixedly connecting the blade bolt 3 with the fixed plate 41 through a nut;

mounting a second connecting piece on the blade lifting plate assembly 4 to realize the connection of the two blade lifting plate assemblies 4;

the lower pulley blocks 6 are arranged on the two fixed plates 41, and the electric lifting appliance 5 is arranged on the electric lifting appliance mounting plate 42;

after the two bearing pressing plates are placed, the upper pulley blocks 2 are respectively installed on the two bearing pressing plates, the two upper pulley blocks 2 are coaxially arranged, manual support is needed before connection, after the two upper pulley blocks 2 are installed, first connecting pipes 14 provided with first connecting plates 15 are respectively installed on the two upper pulley blocks 2, the first connecting plates 15 on the two first connecting pipes 14 are connected through double-headed screws 7 and nuts, the first connecting pieces are spread by adjusting the double-headed screws 7 and the nuts, the two bearing pressing plates are pressed on the inner ring of the variable pitch bearing, and then the upper pulley blocks 2 on the other end are installed in the same method;

the ropes of the miniature electric lifting appliance 5 are lengthened, and pass through the upper pulley block 2 and the lower pulley block 6 one by one, and finally the lifting hook hooks the blade lifting plate lifting lugs 45;

and (3) taking down the working nut, rotating the miniature electric lifting appliance 5, lengthening the steel wire rope, and enabling the wind driven generator blade to leave the variable pitch bearing under the action of gravity.

The utility model discloses a with bearing clamp plate subassembly 1 and bearing fixed connection, through blade bolt 3 and blade lifting plate subassembly 4 and aerogenerator blade fixed connection, then realize interconnect between them through electric hoist 5, thereby realize supporting the aerogenerator blade after the connecting bolt of bearing and blade takes off, realize slowly falling of aerogenerator blade through electric hoist 5, make things convenient for the separation of aerogenerator blade and bearing, avoid using main crane or hoist and mount ship to separate aerogenerator blade and bearing, greatly reduced the replacement cost of aerogenerator blade.

In the description of the present invention, it is to be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the system or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A wind driven generator blade and bearing separation system is characterized by comprising

The variable-pitch bearing comprises a bearing pressing plate assembly (1), wherein the bearing pressing plate assembly (1) is used for being fixedly connected with a variable-pitch bearing, and an upper pulley block (2) is fixedly arranged on the bearing pressing plate assembly (1);

one end of the blade bolt (3) is used for being inserted into a blade hole of the wind driven generator blade and connected with the wind driven generator blade;

blade lifting plate subassembly (4), blade lifting plate subassembly (4) with blade bolt (3) fixed connection, fixed electric hoist (5) and lower pulley block (6) of being equipped with on blade lifting plate subassembly (4), wire rope's on electric hoist (5) one end is walked around in proper order lower pulley block (6) behind upper pulley block (2) with blade lifting plate subassembly (4) are connected.

2. The wind turbine blade and bearing separation system according to claim 1, wherein the bearing pressing plate assembly (1) comprises two bearing pressing plates symmetrically arranged on the inner side of the inner ring of the pitch bearing, the upper pulley set (2) is fixedly arranged on each of the two bearing pressing plates, and the two upper pulley sets (2) are fixedly connected through a first connecting piece for supporting the two upper pulley sets (2) apart.

3. The wind turbine blade and bearing separation system according to claim 2, wherein the bearing pressure plate comprises a transverse plate (11) arranged between the inner ring of the pitch bearing and the hub of the pitch bearing, and a longitudinal plate (12) fixedly connected with the side edge of the transverse plate (11) in an integrated manner, a positioning column (13) inserted into a connecting hole of the inner ring of the pitch bearing is arranged on the transverse plate (11), and the upper pulley group (2) is fixedly arranged on the outer wall of the longitudinal plate (12).

4. The system for separating the blade from the bearing of the wind driven generator as claimed in claim 2, wherein the number of the first connecting pieces is more than one, each first connecting piece comprises two first connecting pipes (14), the two first connecting pipes (14) are respectively connected with the two upper pulley sets (2), one end of each first connecting pipe (14) is fixedly connected with the pulley shaft of the upper pulley set (2), the two first connecting pipes (14) are coaxially arranged, the other end of each first connecting pipe (14) is fixedly provided with a first connecting plate (15), each first connecting plate (15) is provided with a connecting hole, and the two first connecting plates (15) are connected through a plurality of double-headed screws (7) and nuts.

5. The wind turbine blade and bearing separation system according to claim 2, wherein the number of the blade lifting plate assemblies (4) is two, the two blade lifting assemblies are arranged in one-to-one correspondence with the two bearing pressing plates, each blade lifting plate assembly (4) comprises a fixing plate (41) and an electric hanger mounting plate (42), the electric hanger mounting plates (42) are arranged on one surface of the fixing plate (41) at intervals, the fixing plate (41) and the electric hanger mounting plates (42) are fixedly connected through a connecting rod (43), a connecting seam (44) for connecting the blade bolts (3) is arranged on the fixing plate (41), the electric hanger (5) is fixedly arranged on one surface of the electric hanger mounting plate (42) far away from the fixing plate (41), and the lower pulley block (6) is fixed on the fixing plate (41); the two fixing plates (41) are fixedly connected through a second connecting piece.

6. A wind turbine blade and bearing separation system according to claim 5, wherein each fixing plate (41) is connected with a plurality of blade bolts (3), a plurality of connecting screws (31) for connecting with the fixing plates (41) are arranged on the side walls of the blade bolts (3), and the connecting screws (31) are connected with nuts after passing through the connecting seams (44).

7. The aerogenerator blade and bearing separation system as claimed in claim 6, characterized in that the blade pin (3) is provided with a screw connection hole (32) on the side wall of one end for inserting into the blade hole of the aerogenerator blade.

8. The system for separating a blade from a bearing of a wind driven generator as claimed in any one of claims 5 to 7, wherein a lifting lug (45) is fixedly arranged on the fixing plate (41), and a lifting hook is fixedly arranged at one end of a steel wire rope of the electric lifting appliance (5), and is connected with the lifting lug (45).

9. The aerogenerator blade and bearing separation system according to any one of claims 5 to 7, characterized in that the second connecting member comprises two second connecting pipes (46), one end of each of the two second connecting pipes (46) is fixedly connected with the two fixing plates (41) through a connecting seat (47), the two second connecting pipes (46) are coaxially arranged, the other end of each of the second connecting pipes (46) is fixedly provided with a second connecting plate (48), each of the second connecting plates (48) is provided with a connecting hole, and the second connecting plates (48) of the two second connecting pipes (46) are connected through a plurality of double-headed screws (7) and nuts.

10. Wind turbine blade and bearing separation system according to any of claims 1 to 5, characterized in that the upper pulley set (2) comprises an upper mounting base (21) and two upper pulleys (22), wherein the two upper pulleys (22) are fixedly arranged on one face of the upper mounting base (21), the axes of the two upper pulleys (22) are arranged in parallel, and the axes of the two upper pulleys (22) are arranged perpendicular to the upper mounting base (21); lower pulley block (6) are including mount pad (61) and two lower pulleys (62), two lower pulley (62) are fixed to be established through the mounting bracket down on mount pad (61), two the axis parallel arrangement of lower pulley (62), and two the axis of lower pulley (62) with mount pad (61) parallel arrangement down.

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