Wind turbine generator blade locking device

Abstract

The utility model relates to the technical field of wind power generation, in particular to a wind turbine generator blade locking device which comprises an inner gear ring, a fixing frame is arranged on the outer surface of the inner gear ring, a fixing screw is in threaded connection with the interior of the fixing frame, and a turn button is fixedly connected to the top of the fixing screw. According to the wind turbine generator blade locking device, through the arrangement of the fixing frame, the fixing screw rod, the rotating button, the clamping plate, the clamping plate, the connecting plate, a limiting plate, a limiting block, a limiting rod and a spring, when the wind turbine generator blade locking device is used, the rotating button is rotated to drive the clamping plate and the connecting plate to move downwards, the connecting plate moves to drive the limiting plate to move, and the limiting rod transversely moves when the limiting plate moves to a certain position; the rear spring rebounds to enable the limiting block to return to the original position, meanwhile, the limiting block limits the limiting plate to prevent the limiting plate from moving, the clamping plate can lock the device after the clamping plate moves to a certain position, the clamping plate can be taken out by pulling the limiting rod and reversely rotating the rotating button, and therefore the locking efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power generation technical field, concretely is a wind turbine blade locking device. BACKGROUND

[0002] At present, the wind energy industry of our country is in the stage of rapid development, with the continuous increase of unit capacity, the weight of each part of the fan is heavier and the installation height is higher, the installation difficulty is increasing, and the survival environment of the wind turbine is poor, in order to prolong the service life of the unit, regular maintenance and repair are particularly important. In order to ensure the safety of maintenance personnel, in addition to the requirement that personnel correctly use work equipment and all protective equipment, the safety design of the wind turbine is also very important, so the wind turbine blade locking device is often used when personnel repair the wind turbine.

[0003] However, the existing wind turbine blade locking device has the following shortcomings:

[0004] (1) The existing wind turbine blade locking device has weak locking efficiency, because the traditional locking device has a long and tedious process, it takes a certain amount of time, increases the workload of the operator, and reduces the locking efficiency;

[0005] (2) The existing wind turbine blade locking device has weak locking efficiency, because the locking device needs to be repaired in time after being used for a long time, and the opening process of the traditional locking device is tedious, which increases the repair time and reduces the repair efficiency. INVENTION CONTENTS

[0006] The utility model aims at providing a wind turbine blade locking device to solve the problems in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical scheme: a wind turbine blade locking device, comprising an inner gear ring, the outer surface of the inner gear ring is provided with a fixed frame, the inside of the fixed frame is connected with a fixed screw rod in screw, the top of the fixed screw rod is fixedly connected with a rotating knob, the bottom of the fixed screw rod is provided with a clamping plate, the bottom of the clamping plate is fixedly connected with a clamping plate, the surface of the fixed screw rod is provided with a connecting plate on one side, the bottom of the connecting plate is fixedly connected with a limiting plate on one side, the limiting plate is provided with a limiting block on one side, the limiting block is fixedly connected with a limiting rod on one side, the outer surface of the limiting rod is sleeved with a spring, one end of the limiting rod is fixedly connected with a connecting block, one side of the fixed frame is hinged with a cover plate, one side of the cover plate is fixedly connected with a handle, the other side of the cover plate is fixedly connected with a fixed clamping block.

[0008] Optionally, one side of the fixed frame is provided with a fixed clamping groove, the fixed clamping block is matched with the fixed clamping groove, when the cover plate is reversely rotated to the fixed clamping block and clamped into the fixed clamping groove, the fixed clamping groove limits the fixed clamping block, so that the position of the cover plate and the fixed clamping block is stabilized, thereby preventing the cover plate from loosening and falling off.

[0009] Optionally, the side surface of the fixed frame is fixedly connected with an anti-skid pad, the material of the anti-skid pad is rubber, the rubber has anti-skid property, and the anti-skid pad can reduce the possibility that the fixed frame slips from the hand when the fixed frame is held by hand.

[0010] Optionally, the bottom of the inner gear ring is provided with a first threaded groove hole, a mounting screw is screwed in the first threaded groove hole, after the mounting screw is rotated to be matched with the first threaded groove hole, the first threaded groove hole limits the mounting screw, so that the fixed frame is stably connected with the inner gear ring.

[0011] Optionally, the bottom of the fixed frame is provided with a second threaded groove hole, the second threaded groove hole is matched with the mounting screw, after the mounting screw is rotated to be matched with the second threaded groove hole, the second threaded groove hole limits the mounting screw, so that the mounting screw is prevented from loosening and falling off.

[0012] Optionally, the surface top of the fixed screw is provided with a first bearing, and the surface bottom of the fixed screw is provided with a second bearing, so that the moving track of the connecting plate and the clamping plate is changed into longitudinal movement.

[0013] Compared with the prior art, the wind turbine blade locking device has the following beneficial effects:

[0014] 1. The wind turbine blade locking device is provided with a fixed frame, a fixed screw, a knob, a clamping plate, a clamping plate, a connecting plate, a limiting plate, a limiting block, a limiting rod and a spring, in use, the knob is rotated to drive the clamping plate and the connecting plate to move downward, the connecting plate moves to drive the limiting plate to move, the limiting rod moves transversely when the limiting plate moves to a certain position, the spring rebounds to make the limiting block return to the original position, the limiting block limits the limiting plate at the same time to prevent the limiting plate from moving, the clamping plate moves to a certain position, and the clamping plate locks the device, the limiting rod is pulled and the knob is reversely rotated to take out the clamping plate, and thus the locking efficiency is improved.

[0015] 2. The wind turbine blade locking device is provided with a cover plate, a handle and a fixed clamping block, in use, the handle is held to pull the cover plate, the cover plate is opened after being rotated, and then the inside of the locking device is operated or overhauled, the cover plate is reversely rotated to the fixed clamping block after operation, and the fixed clamping block is clamped into the clamping groove on one side of the device, so that the position of the cover plate is fixed, the overhauling efficiency of the locking device is improved, the locking device needs to be overhauled in time after being used for a long time, the opening process of the traditional locking device is relatively cumbersome, the overhauling time is increased, and the overhauling efficiency is reduced. Attached Figure Description

[0016] Figure 1 This is a three-dimensional appearance schematic diagram of the present utility model;

[0017] Figure 2 This is a schematic diagram showing the disassembled fixed frame of this utility model;

[0018] Figure 3 This is a schematic diagram of the disassembled card plate of this utility model;

[0019] Figure 4 This is a schematic diagram showing the disassembled cover plate of this utility model.

[0020] In the diagram: 1. Internal gear ring; 2. Fixing frame; 3. Fixing screw; 4. Knob; 5. Clamping plate; 6. Card plate; 7. Connecting plate; 8. Limiting plate; 9. Limiting block; 10. Limiting rod; 11. Spring; 12. Connecting block; 13. Cover plate; 14. Handle; 15. Fixing block; 16. Fixing slot; 17. Anti-slip pad; 18. Mounting screw; 19. First bearing; 20. Second bearing. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4As shown, the utility model provides a technical scheme: a wind turbine blade locking device, including inner tooth ring 1, the outer surface of inner tooth ring 1 is provided with fixed frame 2, the inside screw thread connection of fixed frame 2 has fixed screw rod 3, the top fixed connection of fixed screw rod 3 has knob 4, the bottom of fixed screw rod 3 is provided with clamping plate 5, the bottom fixed connection of clamping plate 5 has clamping plate 6, the surface one side of fixed screw rod 3 is provided with connecting plate 7, the bottom one side fixed connection of connecting plate 7 has limit stop 8, the one side of limit stop 8 is provided with limit block 9, the one side fixed connection of limit block 9 has limit rod 10, the outer surface of limit rod 10 is sleeved with spring 11, one end fixed connection of limit rod 10 has link block 12, one side of fixed frame 2 is hinged with cover plate 13, one side fixed connection of cover plate 13 has handle 14, the other side fixed connection of cover plate 13 has fixed clamping block 15, rotate knob 4 and drive clamping plate 5 and connecting plate 7 to move downwards, connecting plate 7 moves and drives limit stop 8 to move, when limit stop 8 moves to certain position, limit rod 10 moves horizontally, and spring 11 rebounds to make limit block 9 return to the original position, while limit block 9 limits limit stop 8, prevents limit stop 8 from moving, after clamping plate 5 moves to certain position, clamping plate 6 will lock the device, and pulling limit rod 10 and counter-rotating knob 4 can take out clamping plate 6, to improve locking efficiency, handheld handle 14 pulls cover plate 13, makes cover plate 13 rotate and then open, and then operate or overhaul inside locking device, after operation, counter-rotating cover plate 13 to fixed clamping block 15 is clamped into the clamping groove of one side of device, makes the position of cover plate 13 fixed, to improve the overhaul efficiency of locking device;

[0023] The side of fixed frame 2 is provided with fixed clamping groove 16, and the fixed clamping block 15 is attached to the fixed clamping groove 16, when the cover plate 13 is counter-rotated to the fixed clamping block 15 is clamped into the fixed clamping groove 16, the fixed clamping groove 16 limits the fixed clamping block 15, so that the position of the cover plate 13 and the fixed clamping block 15 is stable, thereby preventing the cover plate 13 from loosening and falling off;

[0024] The side of the fixed frame 2 is fixedly connected with the anti-skid pad 17, and the material of the anti-skid pad 17 is rubber. The rubber has anti-skid property, and through the connection with the fixed frame 2, the possibility that the fixed frame 2 slips from the hand when the fixed frame 2 is held by hand can be reduced.

[0025] The bottom of the inner tooth ring 1 is provided with a first threaded groove hole, and the inside of the first threaded groove hole is screw-connected with the mounting screw rod 18. When the mounting screw rod 18 is rotated to be attached to the first threaded groove hole, the first threaded groove hole limits the mounting screw rod 18, so that the fixed frame 2 and the inner tooth ring 1 are stably connected.

[0026] The bottom of the fixed frame 2 is provided with a second threaded slot hole, the second threaded slot hole is matched with the mounting screw rod 18, after rotating the mounting screw rod 18 to match the mounting screw rod 18 with the second threaded slot hole, the second threaded slot hole limits the mounting screw rod 18, so that the mounting screw rod 18 is prevented from loosening and falling off;

[0027] The surface top of the fixed screw rod 3 is provided with the first bearing 19, and the surface bottom of the fixed screw rod 3 is provided with the second bearing 20, so that the moving track of the connecting plate 7 and the clamping plate 5 is changed into longitudinal movement through the first bearing 19 and the second bearing 20.

[0028] In the utility model, the working steps of the device are as follows:

[0029] The first step is that rotating the knob 4 drives the clamping plate 5 and the connecting plate 7 to move downwards, the connecting plate 7 drives the limiting plate 8 to move, the limiting rod 10 moves transversely when the limiting plate 8 moves to a certain position, the limiting block 9 returns to the original position through the rebound of the rear spring 11, the limiting block 9 limits the limiting plate 8 at the same time, the limiting plate 8 is prevented from moving, the clamping plate 5 moves to a certain position, and the clamping plate 6 can lock the device, the clamping plate 6 is taken out by pulling the limiting rod 10 and reversely rotating the knob 4, so that the locking efficiency is improved, the cover plate 13 is pulled by the hand-held handle 14, the cover plate 13 is opened after rotating, and then the inside of the locking device is operated or overhauled, the cover plate 13 is reversely rotated to the fixed clamping block 15 after operation, the fixed clamping block 15 is clamped into the clamping groove on one side of the device, the position of the cover plate 13 is fixed, and the overhauling efficiency of the locking device is improved;

[0030] The second step is that when the cover plate 13 is reversely rotated to the fixed clamping block 15 clamped into the fixed clamping groove 16, the fixed clamping groove 16 limits the fixed clamping block 15, the position of the cover plate 13 and the fixed clamping block 15 is stabilized, so that the cover plate 13 is prevented from loosening and falling off, the rubber has the anti-skid property, the possibility that the fixed frame 2 falls off from the hand when the fixed frame 2 is held by hand is reduced through the connection with the fixed frame 2, the first threaded slot hole limits the mounting screw rod 18 after rotating the mounting screw rod 18 to match the mounting screw rod 18 with the first threaded slot hole, so that the fixed frame 2 and the inner gear ring 1 are stably connected;

[0031] The third step is that the second threaded slot hole limits the mounting screw rod 18 after rotating the mounting screw rod 18 to match the mounting screw rod 18 with the second threaded slot hole, so that the mounting screw rod 18 is prevented from loosening and falling off, the moving track of the connecting plate 7 and the clamping plate 5 is changed into longitudinal movement through the first bearing 19 and the second bearing 20.

[0032] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A wind turbine blade locking device comprising an inner ring (1), characterized in that: The outer surface of the inner gear ring (1) is provided with a fixed frame (2), the inside of the fixed frame (2) is threadedly connected with a fixed screw rod (3), the top of the fixed screw rod (3) is fixedly connected with a rotating knob (4), the bottom of the fixed screw rod (3) is provided with a clamping plate (5), the bottom of the clamping plate (5) is fixedly connected with a clamping plate (6), the surface of the fixed screw rod (3) is provided with a connecting plate (7), the bottom of the connecting plate (7) is fixedly connected with a limiting plate (8), one side of the limiting plate (8) is provided with a limiting block (9), one side of the limiting block (9) is fixedly connected with a limiting rod (10), the outer surface of the limiting rod (10) is sleeved with a spring (11), one end of the limiting rod (10) is fixedly connected with a connecting block (12), one side of the fixed frame (2) is hingedly connected with a cover plate (13), one side of the cover plate (13) is fixedly connected with a handle (14), the other side of the cover plate (13) is fixedly connected with a fixed clamping block (15).

2. A wind turbine blade locking device according to claim 1, characterised in that: One side of the fixed frame (2) is provided with a fixed clamping groove (16), and the fixed clamping block (15) is fitted with the fixed clamping groove (16).

3. A wind turbine blade locking device according to claim 1, characterized in that: The side surface of the fixed frame (2) is fixedly connected with an anti-skid pad (17), and the material of the anti-skid pad (17) is rubber.

4. A wind turbine blade locking device according to claim 1, characterized in that: The bottom of the inner gear ring (1) is provided with a first threaded groove hole, and the inside of the first threaded groove hole is threadedly connected with a mounting screw rod (18).

5. A wind turbine blade locking device according to claim 4, wherein: The bottom of the fixed frame (2) is provided with a second threaded groove hole, and the second threaded groove hole is fitted with the mounting screw rod (18).

6. A wind turbine blade locking device according to claim 1, wherein: The surface of the fixed screw rod (3) is provided with a first bearing (19) at the top, and a second bearing (20) at the bottom.

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