Wind driven generator blade hoisting clamp

Abstract

The utility model relates to the technical field of blade hoisting clamps, in particular to a wind driven generator blade hoisting clamp which comprises a supporting frame, two hook sets are arranged below the supporting frame, a power device matched with the hook sets is arranged on the supporting frame, output shafts are arranged on the two sides of the power device, and the output shafts are connected with the hook sets. Output shafts are fixedly connected with transmission shafts, the transmission shafts are provided with two take-up wheels, the two take-up wheels are in power connection with the hook set through steel wire ropes, a connecting frame is arranged above the supporting frame, the connecting frame is provided with a connecting wheel matched with a hoisting device, the supporting frame is provided with a pulley block, and the pulley block is provided with a pulley. The steel wire rope penetrates through the pulley block to be connected with the hook set, the hooks in the hook set are connected with the two sides of the blade in a clamped mode respectively, the two take-up wheels are controlled to rotate through the power device, the steel wire rope is wound, then the blade is clamped and fixed, and the device is convenient and fast to use, not prone to falling off and high in safety.

Description

TECHNICAL FIELD

[0001] The utility model relates to blade hoisting fixture technical field especially relates to a wind driven generator blade hoisting fixture. BACKGROUND

[0002] The wind driven generator blade is the most basic and the most key component in the wind driven generator, and the design of the blade in the wind driven generator directly influences the conversion efficiency of wind energy, directly influences its annual power generation, is an important link of wind energy utilization, and the requirements of the blade are: light density and has the best fatigue strength and mechanical properties, can withstand extreme adverse conditions such as gale and random load test;The elasticity of the blade, the inertia when rotating and the vibration frequency characteristic curve are normal, the load stability of the whole power generation system is good, cannot be pulled off and flown out under the action of centrifugal force in the case of out of control (flywheel), also cannot be broken under the action of wind pressure, and also cannot produce strong resonance of the whole wind driven generator set in the range below the flywheel speed;The material of the blade must ensure that the surface is smooth to reduce wind resistance, and rough surface can also be torn by wind;Strong electromagnetic wave interference and light reflection cannot be generated;Excessive noise is not allowed;Corrosion resistance, good ultraviolet radiation and lightning strike performance;Low cost, and minimum maintenance cost.

[0003] The existing wind driven generator blade is usually transported separately from the generator itself, hoisted and assembled by hoisting equipment after reaching the installation position, and the blade usually needs to be fixed by means of a fixture in the process, such as the general fixture for installing the wind driven generator blade disclosed in Chinese patent publication No. CN219587707U, which places the wind driven generator blade between the two first clamping plates and the second clamping plate, then rotates the rotating handle, drives the lead screw to rotate, simultaneously drives the sliding rod to move vertically along the outside of the lead screw, adjusts the distance between the first clamping plate and the second clamping plate, firmly clamps the wind driven generator blade, simultaneously uses the rotation of the output shaft of the servo motor to drive the clamp to rotate, so as to adjust the angle of the wind driven generator blade, and facilitates installation.

[0004] However, in actual use, the operation process is complicated, a lot of time is consumed, the rubber pad is easily separated from the clamping plate during hoisting due to the large weight of the blade, and safety accidents are caused. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems in the prior art, such as complicated operation process, a lot of time consumption, separation of the rubber pad from the clamping plate during hoisting due to the large weight of the blade, and safety accidents, and provides a wind driven generator blade hoisting fixture.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of wind turbine blade hoisting clamp, including support frame, two hook groups are arranged below the support frame, power device is arranged on the support frame and is matched with the hook group, the two sides of the power device are all provided with output shaft, and output shaft is all fixedly connected with transmission shaft, two take-up reels are arranged on the transmission shaft, two the steel wire rope of reel is connected with the hook group by steel wire rope, connection frame is arranged above the support frame, connection wheel is arranged on the connection frame and is matched with hoisting device, pulley block is arranged on the support frame, and steel wire rope passes through pulley block and is connected with hook group.

[0008] Further, the hook group includes two oppositely arranged hooks, each of the hooks is provided with a clamping groove matched with the blade, and the two hooks are respectively clamped with the two sides of the blade.

[0009] Further, the two hooks are respectively connected with the steel wire ropes on the two take-up reels, and each of the hooks is provided with a wire slot matched with the steel wire rope.

[0010] Further, the two take-up reels are respectively forward rotation wheels and reverse rotation wheels, the forward rotation wheel is fixedly arranged on the transmission shaft, the reverse rotation wheel is rotatably connected with the transmission shaft, and the reverse rotation wheel and the transmission shaft are connected by a transmission assembly.

[0011] Further, the transmission assembly includes a gear ring fixedly arranged on the reverse rotation wheel, a gear rotatably arranged on the power device and meshingly connected with the gear ring, and a gear tooth fixedly arranged on the transmission shaft and meshingly connected with the gear.

[0012] Further, the pulley block includes three pulleys, the steel wire rope is in S-shaped structure and passes through the three pulleys and is connected with the hook group.

[0013] The wind turbine blade hoisting clamp has the following advantages:

[0014] In the utility model, the hooks in the hook group are clamped with the two sides of the blade, and the power device controls the rotation of the two take-up reels to wind the steel wire rope, so that the blade is clamped and fixed, which is convenient, safe and not easy to fall off.

[0015] Secondly, in the utility model, the wire slot matched with the steel wire rope is arranged on the hook, and the steel wire rope of the other hook is placed in the wire slot. In the winding process, the steel wire ropes of the two hooks not only exert force on themselves, but also exert force on each other, which increases the firmness of the hooks and the blade and further prevents the hooks from falling off. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structure schematic view of a wind driven generator blade hoisting clamp is provided in the utility model;

[0017] Figure 2 A structure schematic view of a transmission shaft is provided in the utility model;

[0018] Figure 3 An A area enlarged structure schematic view of the utility model is provided in the utility model;

[0019] Figure 4 A structure schematic view of a gear is provided in the utility model.

[0020] In the drawing: 1, support frame; 2, hook group; 21, hook; 22, clamping groove; 23, wire routing groove; 3, power device; 4, transmission shaft; 5, take-up wheel; 51, forward rotation wheel; 52, reverse rotation wheel; 6, steel wire rope; 7, connecting frame; 71, connecting wheel; 8, pulley block; 81, pulley; 9, transmission assembly; 91, gear ring; 92, gear. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0022] Referring to Figures 1-4 A wind driven generator blade hoisting clamp, comprising a support frame 1, two hook groups 2 are arranged below the support frame 1, a power device 3 is arranged on the support frame 1 and matched with the hook groups 2, output shafts are arranged on both sides of the power device 3, the transmission shafts 4 are fixedly connected with the output shafts, two take-up wheels 5 are arranged on the transmission shafts 4, the two take-up wheels 5 are connected with the hook groups 2 through the steel wire ropes 6, a connecting frame 7 is arranged above the support frame 1, the connecting wheels 71 matched with hoisting devices are arranged on the connecting frame 7, a pulley block 8 is arranged on the support frame 1, and the steel wire ropes 6 are connected with the hook groups 2 through the pulley block 8.

[0023] In the utility model, the hook groups 2 are clamped with the two sides of the blade respectively, then the two take-up wheels 5 are controlled to rotate by the power device 3, the steel wire ropes 6 are wound, the hook groups are clamped with the blade tightly, the clamping and fixing of the blade are completed, it is convenient and fast, it is not easy to fall off, and the safety is high. In the embodiment, the power device 3 is a double-shaft motor or other double-shaft power structure. In some embodiments, a threaded column is arranged at the lower end of the support frame 1, a positioning cylinder is threadedly connected with the threaded column, after the hook groups 2 fix the blade, the positioning cylinder abuts against the blade to further fix the blade.

[0024] Further, in the embodiment, the hook group 2 includes two oppositely arranged hooks 21, each of which is provided with a clamping groove 22 matched with the blade, and the two hooks 21 are clamped with the two sides of the blade respectively, the two take-up wheels 5 are controlled to rotate by the power device 3 to wind the steel wire rope 6, and the two hooks 21 are pulled to move, so that the clamping grooves 22 of the two hooks 21 are clamped with the blade.

[0025] Further, in the embodiment, the two hooks 21 are connected with the steel wire ropes 6 on the two take-up wheels 5 respectively, each of the hooks 21 is provided with a wire groove 23 matched with the steel wire rope 6, and the steel wire rope 6 of the other hook 21 is placed in the wire groove 23, so that the steel wire ropes 6 of the two hooks 21 not only apply force to themselves but also apply force to each other during the winding process, thereby increasing the firmness of the hooks 21 and the blade and further preventing the hooks 21 from falling off.

[0026] It should be noted that, in the embodiment, the two take-up wheels 5 are a forward rotation wheel 51 and a reverse rotation wheel 52 respectively, the forward rotation wheel 51 is fixedly arranged on the transmission shaft 4, the reverse rotation wheel 52 is rotationally connected with the transmission shaft 4, and the transmission shaft 4 and the reverse rotation wheel 52 are power-connected through the transmission assembly 9, so that the rotation directions of the forward rotation wheel 51 and the reverse rotation wheel 52 are opposite when the transmission shaft 4 rotates under the action of the transmission assembly 9, thereby realizing synchronous winding and unwinding of the two take-up wheels 5, ensuring that the moving degrees of the two hooks 21 remain consistent, and preventing the center of gravity from deviating when the blade is clamped.

[0027] In addition, in the embodiment, the transmission assembly 9 includes a gear ring 91 fixedly arranged on the reverse rotation wheel 52, the power device 3 is rotationally provided with a gear 92 meshingly connected with the gear ring 91, and the transmission shaft 4 is fixedly provided with gear teeth meshingly connected with the gear 92, so that the gear 92 is driven to reverse when the transmission shaft 4 rotates, the gear ring 91 is driven to rotate through the gear 92, and the rotation directions of the gear ring 91 and the reverse rotation wheel 52 are opposite to that of the transmission shaft 4.

[0028] In more detail, in the embodiment, the pulley block 8 includes three pulleys 81, the steel wire rope 6 is in an S-shaped structure and passes through the three pulleys 81 and is connected with the hook group 2, and the steel wire rope 6 is fixed through the three pulleys 81 to prevent the steel wire rope 6 from loosening and falling off.

[0029] The working mode is as follows: when working, the two hooks 21 are clamped with the two sides of the blade respectively, the two transmission shafts 4 are controlled to rotate by the power device 3, the gear 92 is reversed at this time, the gear ring 91 is driven to rotate through the gear 92, the rotation directions of the gear ring 91 and the reverse rotation wheel 52 are opposite to that of the transmission shaft 4, synchronous winding and unwinding of the two take-up wheels 5 are realized, the moving degrees of the two hooks 21 remain consistent, the clamping grooves 22 of the two hooks 21 are clamped with the blade, and the blade is fixed.

[0030] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A wind turbine blade hoisting clamp, comprising a support frame (1), characterized in that, Two hook assemblies (2) are provided below the support frame (1). A power device (3) that cooperates with the hook assemblies (2) is provided on the support frame (1). Output shafts are provided on both sides of the power device (3), and transmission shafts (4) are fixedly connected to the output shafts. Two take-up wheels (5) are provided on the transmission shafts (4). Both take-up wheels (5) are connected to the hook assemblies (2) by steel wire ropes (6). A connecting frame (7) is provided above the support frame (1). A connecting wheel (71) that cooperates with the hoisting device is provided on the connecting frame (7). A pulley assembly (8) is provided on the support frame (1). The steel wire rope (6) passes through the pulley assembly (8) and is connected to the hook assemblies (2).

2. The wind turbine blade hoisting clamp according to claim 1, characterized in that: The hook assembly (2) includes two hooks (21) arranged opposite to each other. Each hook (21) has a slot (22) that matches the blade. The two hooks (21) are respectively engaged with the two sides of the blade.

3. The wind turbine blade hoisting clamp according to claim 2, characterized in that: The two hooks (21) are respectively connected to the wire ropes (6) on the two take-up reels (5), and each hook (21) is provided with a wire groove (23) that cooperates with the wire rope (6).

4. The wind turbine blade hoisting clamp according to claim 1, characterized in that: The two take-up reels (5) are a forward reel (51) and a reverse reel (52), respectively. The forward reel (51) is fixedly mounted on the drive shaft (4), and the reverse reel (52) is rotatably connected to the drive shaft (4). The reverse reel (52) and the drive shaft (4) are poweredly connected through a transmission assembly (9).

5. A wind turbine blade hoisting clamp according to claim 4, characterized in that: The transmission assembly (9) includes a gear ring (91) fixedly mounted on the reverse wheel (52), a gear (92) rotatably mounted on the power device (3) meshing with the gear ring (91), and teeth fixedly mounted on the transmission shaft (4) meshing with the gear (92).

6. The wind turbine blade hoisting clamp according to claim 1, characterized in that: The pulley assembly (8) includes three pulleys (81), and the wire rope (6) passes through the three pulleys (81) in an S-shaped structure and is connected to the hook assembly (2).

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