Replacing and hoisting tool for variable-pitch speed reducer of wind turbine generator

Abstract

The utility model relates to the technical field of hoisting of variable-pitch speed reducers of wind turbine generators, and discloses a tool for replacing and hoisting a variable-pitch speed reducer of a wind turbine generator, which comprises a connecting frame, the two rotary drums are fixedly connected to the right side surface of the connecting frame; the supporting plate is located on the right side of the connecting frame; the connecting rod is fixedly hinged to the bottom surface of the supporting plate. By means of the hoisting assembly and the winch, the hoisting hook can suspend in the air at any time, safety is improved in the hoisting process, meanwhile, the first pulley and the second pulley are additionally arranged on the supporting plate, paying-off is more stable, and the center height of the first pulley and the center height of the second pulley and the center height of the winch are sequentially decreased. According to the utility model, the swinging of the steel wire rope on the supporting plate is greatly reduced, so that the hoisting is more stable and labor-saving, the safety risk in the overhaul operation process is effectively reduced, the occurrence of personnel and equipment safety accidents is reduced, a certain safety effect is achieved, the overhaul working efficiency of the fan is effectively improved, the overhaul time of the fan is shortened, and the power generation loss of the fan is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind turbine generator unit variable pitch speed reducer hoisting technical field, concretely is wind turbine generator unit variable pitch speed reducer replacement hoisting frock. BACKGROUND

[0002] Wind turbine generator variable pitch speed reducer is the important component of blade variable pitch, due to the uncertainty of blade load bearing, leading to the risk of load bearing overrun and damage of variable pitch speed reducer. Most of the wind turbine generators of new energy companies have been out of warranty period, and most of the daily maintenance work is completed by internal personnel of new energy companies, among which the bolt torque check is an important work in the unit maintenance work.

[0003] At present, since the inside of the wind turbine generator tower drum is not provided with a lifting device similar to a small crane, the hydraulic station, wrench, tool bag and other related tools used for checking the tower drum bolt torque value are generally carried by artificial, or the tools are transmitted to each platform of the tower drum by artificial using a rope. However, since the hydraulic station, wrench, tool bag and other related tools have different weights, some of which can reach more than 30 kg, the tools are carried by artificial or transmitted to each platform of the tower drum by artificial using a rope, which has the safety risk hidden dangers of tool falling damage and personnel injury, and greatly affects the work efficiency. Therefore, the wind turbine generator variable pitch speed reducer replacement hoisting frock is proposed. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing wind turbine generator variable pitch speed reducer replacement hoisting frock to solve the problems in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: wind turbine generator variable pitch speed reducer replacement hoisting frock, including connecting frame,

[0006] Two rotating cylinders fixedly connected to the right side of the connecting frame;

[0007] The support plate is located on the right side of the connecting frame;

[0008] The connecting rod is fixedly hinged to the bottom surface of the support plate;

[0009] And two rotating shafts are fixedly connected to the left side surface of the support plate and the bottom surface of the connecting rod respectively, the bottom end surface of the rotating shaft slides through the top surface of the rotating cylinder and extends to the inside of the rotating cylinder, the lifting assembly is arranged above the support plate, the support plate can rotate 90° left and right, and it is safer and more reliable in the hanging stage and preparation stage;

[0010] The inside of the connecting frame is provided with the clamping assembly.

[0011] Preferably, the hoisting assembly comprises a winch located on the top surface of the support plate, the winch base is fixedly connected with the top surface of the support plate, the right side of the winch is provided with a first fixing frame and a second fixing frame, the bottom surface of the first fixing frame and the second fixing frame is fixedly connected with the top surface of the support plate, the inner side of the first fixing frame and the inner side of the second fixing frame is provided with a first pulley and a second pulley respectively, the end surface of the first pulley and the second pulley is rotatably connected with the inner side of the first fixing frame and the second fixing frame through a bearing seat, the top surface of the connecting frame is provided with a through groove, the surface of the winch is wound with a steel wire rope, the left end surface of the steel wire rope is fixedly connected with the surface of the winch, the right end surface of the steel wire rope extends to below the support plate through the top surface of the support plate and the through groove, the right end surface of the steel wire rope is fixedly connected with a lifting hook, the first pulley is located above the steel wire rope, and the second pulley is located below the steel wire rope.

[0012] Preferably, the winch is a bidirectional self-locking manual winch, and the steel wire rope is a torsion-resistant solid steel wire rope; the bidirectional self-locking manual winch can realize bidirectional self-locking in the air at any time, and can stay at any position, and is safe and reliable.

[0013] Preferably, the connecting frame, the support plate and the connecting rod are made of galvanized steel, and meet the bearing capacity requirement.

[0014] Preferably, the first pulley is located above the left upper side of the second pulley.

[0015] Preferably, the length of the steel wire rope is greater than 30m, and the torsion-resistant solid steel wire rope has the advantages of good bearing capacity, small size, high strength, light weight and the like.

[0016] Preferably, the right side surface of the winch is fixedly connected with a handle, so that the winch can be conveniently rotated.

[0017] Preferably, the top surface of the support plate is fixedly connected with a hanging ring, and the left side surface of the connecting frame is provided with a through groove; the hanging ring and the through groove are connected through buckles (not shown in the figure).

[0018] Preferably, the clamping assembly comprises two clamping plates located in the inner side of the connecting frame, the rear side surface of each clamping plate is fixedly connected with a threaded rod, and the rear end surface of the threaded rod extends to the rear side of the connecting frame through the inner side surface of the connecting frame in a threaded mode.

[0019] Preferably, the front side of the clamping plate is provided with a friction pad, and the rear side surface of the friction pad is fixedly connected with the front side surface of the clamping plate, so that the friction of the clamping plate is increased, and the connecting frame can be conveniently installed on the ladder stand.

[0020] Compared with the prior art, the hoisting assembly has the advantages that:

[0021] 1. The wind turbine variable pitch speed reducer replacement lifting tool, through the lifting assembly, utilizes the winch, can make the lifting hook suspended object pause in the air at any time, improves the safety in the process of lifting, meanwhile, the first pulley and the second pulley are added on the support plate, makes the pay-off more stable, the center height of the first pulley, the second pulley and the winch decreases successively, greatly reduces the swing of the steel wire rope on the support plate, makes the lifting object more stable and saves the labor, effectively reduces the safety risk in the maintenance process, reduces the occurrence of personnel and equipment safety accidents, has certain safety effect, and effectively improves the wind turbine maintenance work efficiency, shortens the wind turbine maintenance time, reduces the loss of wind turbine power generation capacity;

[0022] 2. The wind turbine variable pitch speed reducer replacement lifting tool, through the clamping assembly, utilizes the threaded rod to drive the clamping plate to move, so that the clamping plate drives the friction pad to move, so that the connecting frame is fixed on the ladder, facilitating the installation of the lifting tool;

[0023] 3. The wind turbine variable pitch speed reducer replacement lifting tool, through the connecting rod and the support plate, the tool can be disassembled and folded for storage, so that the maintenance personnel can carry the tool in the tool bag. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a front sectional view of the steel wire rope of the utility model;

[0025] Figure 2 It is a whole front perspective view of the utility model;

[0026] Figure 3 It is a whole rear perspective view of the utility model;

[0027] Figure 4 It is a right side sectional view of the threaded rod of the utility model.

[0028] In the drawing: connecting frame 1, connecting rod 2, support plate 3, lifting assembly 40, winch 402, first fixing frame 403, first pulley 404, second fixing frame 405, second pulley 406, steel wire rope 407, lifting hook 408, handle 409, clamping assembly 41, threaded rod 411, clamping plate 412, friction pad 413, hanging ring 5. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly 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, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0030] Embodiment one: please refer to Figure 1 Figure 4 The utility model provides technical schemes: wind turbine variable pitch speed reducer replacement hoisting tool, including connecting frame 1,

[0031] Two rotary cylinders are fixedly connected on the right side surface of the connecting frame 1.

[0032] The support plate 3 is located on the right side of the connecting frame 1.

[0033] The connecting rod 2 is fixedly hinged on the bottom surface of the support plate 3.

[0034] And two rotating shafts are fixedly connected on the left side surface of the support plate 3 and the bottom surface of the connecting rod 2 respectively, the bottom end surface of the rotating shaft is slidably penetrated through the top surface of the rotary cylinder and extends to the inside of the rotary cylinder, the tool can be disassembled and folded and stored through the connecting rod 2 and the support plate 3, so that the maintenance personnel can carry the folded tool in the tool bag and carry it down the tower.

[0035] The hoisting assembly 40 is arranged above the support plate 3.

[0036] The clamping assembly 41 is arranged on the inner side of the connecting frame 1.

[0037] The hoisting assembly 40 includes a winch 402 on the top surface of the support plate 3, the base of the winch 402 is fixedly connected with the top surface of the support plate 3, a first fixing frame 403 and a second fixing frame 405 are arranged on the right side of the winch 402, the bottom surfaces of the first fixing frame 403 and the second fixing frame 405 are fixedly connected with the top surface of the support plate 3, a first pulley 404 and a second pulley 406 are arranged on the inner sides of the first fixing frame 403 and the second fixing frame 405 respectively, the end surfaces of the first pulley 404 and the second pulley 406 are rotatably connected with the inner side surfaces of the first fixing frame 403 and the second fixing frame 405 through bearing seats, a through slot is formed in the top surface of the connecting frame 1, a steel wire rope 407 is wound on the surface of the winch 402, the left end surface of the steel wire rope 407 is fixedly connected with the surface of the winch 402, the right end surface of the steel wire rope 407 extends to below the support plate 3 through the top surface of the support plate 3 and the through slot, a lifting hook 408 is fixedly connected with the right end surface of the steel wire rope 407, the first pulley 404 is located above the steel wire rope 407, and the second pulley 406 is located below the steel wire rope 407, through the hoisting assembly 40, the lifting hook 408 can be temporarily suspended in the air by using the winch 402, the safety is improved during lifting, meanwhile, the first pulley 404 and the second pulley 406 are arranged on the support plate 3, the wire laying is more stable, the center heights of the first pulley 404 and the second pulley 406 and the winch 402 are sequentially decreased, the shaking of the steel wire rope 407 on the support plate 3 is greatly reduced, the lifting is more stable and labor-saving, the safety risk in the maintenance process is effectively reduced, the occurrence of personnel and equipment safety accidents is reduced, the safety effect is good, the wind turbine maintenance work efficiency is improved, the wind turbine maintenance time is shortened, and the loss of wind turbine power generation capacity is reduced.​

[0038] The winch 402 is a bidirectional self-locking manual winch, and the steel wire rope 407 is a torsion-resistant solid steel wire rope.

[0039] The connecting frame 1, the supporting plate 3 and the connecting rod 2 are all made of galvanized steel.

[0040] The first pulley 404 is located above the left upper side of the second pulley 406.

[0041] The length of the steel wire rope 407 is greater than 30 meters.

[0042] The winch 402 is a bidirectional self-locking manual winch, and the steel wire rope 407 is a torsion-resistant solid steel wire rope.

[0043] The supporting plate 3 is fixedly connected with a hanging ring 5 on the top surface, and the connecting frame 1 is provided with a through slot on the left side surface.

[0044] In the embodiment one, the wind turbine variable pitch speed reducer replacement lifting tool is provided. Figure 2 and Figure 4 As shown in the figure, the clamping assembly 41 comprises two clamping plates 412 located in the inner side of the connecting frame 1, the rear side surface of each clamping plate 412 is fixedly connected with a threaded rod 411, the rear end surface of the threaded rod 411 is threadedly extended to the rear side of the connecting frame 1 through the inner side surface of the connecting frame 1, by the clamping assembly 41, the threaded rod 411 drives the clamping plate 412 to move, so that the clamping plate 412 drives the friction pad 413 to move, thereby fixing the connecting frame 1 on the ladder, facilitating the installation of the lifting tool.

[0045] The front side of the clamping plate 412 is provided with a friction pad 413, and the rear side surface of the friction pad 413 is fixedly connected with the front side surface of the clamping plate 412.

[0046] When the connecting frame 1 is installed on the ladder, the threaded rod 411 is rotated, the threaded rod 411 drives the clamping plate 412 to move, so that the clamping plate 412 drives the friction pad 413 to move towards the ladder, thereby clamping and fixing the connecting frame 1 on the ladder.

[0047] The hanging object is hung on the hook 408, the handle 409 is rotated, the winch 402 is rotated and the steel wire rope 407 is wound, so that the steel wire rope 407 drives the hook 408 to move upwards, thereby driving the hanging object to move upwards.

[0048] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. Wind turbine unit variable pitch speed reducer replacement hoisting tool, including connecting frame (1); Two rotating cylinders are fixedly connected to the right side of the connecting frame (1); A support plate (3) is located on the right side of the connecting frame (1); A connecting rod (2) is fixedly hinged to the bottom surface of the support plate (3); And respectively fixedly connected with the support plate (3) left side and the connecting rod (2) bottom two rotating shafts, the rotating shaft bottom end surface slidingly penetrates the rotating drum top surface and extends to the rotating drum interior, characterized in that: A hoisting assembly (40) is arranged above the support plate (3); A clamping assembly (41) is arranged on the inner side of the connecting frame (1).

2. The wind turbine generator variable pitch gearbox replacement hoist tooling of claim 1, wherein: The hoisting assembly (40) comprises a winch (402) located on the top surface of the support plate (3), the base of the winch (402) is fixedly connected to the top surface of the support plate (3), a first fixing frame (403) and a second fixing frame (405) are arranged on the right side of the winch (402), the bottom surfaces of the first fixing frame (403) and the second fixing frame (405) are fixedly connected to the top surface of the support plate (3), a first pulley (404) and a second pulley (406) are respectively arranged on the inner sides of the first fixing frame (403) and the second fixing frame (405), the end faces of the first pulley (404) and the second pulley (406) are respectively rotatably connected to the inner sides of the first fixing frame (403) and the second fixing frame (405) through bearing seats, a through slot is formed in the top surface of the connecting frame (1), a steel wire rope (407) is wound around the surface of the winch (402), the left end face of the steel wire rope (407) is fixedly connected to the surface of the winch (402), the right end face of the steel wire rope (407) extends to below the support plate (3) through the top surface of the support plate (3) and the through slot, and a lifting hook (408) is fixedly connected to the right end face of the steel wire rope (407).

3. The wind turbine generator variable pitch gearbox replacement hoist tooling of claim 2, wherein: The winch (402) is a bidirectional self-locking manual winch, and the steel wire rope (407) is a torsion-resistant solid steel wire rope.

4. The wind turbine generator variable pitch gearbox replacement hoist tooling of claim 2, wherein: The connecting frame (1), the support plate (3) and the connecting rod (2) are all made of galvanized steel.

5. The wind turbine generator variable pitch gearbox replacement hoist tooling of claim 2, wherein: The first pulley (404) is located above and left of the second pulley (406).

6. The wind turbine generator variable pitch gearbox replacement hoist tooling of claim 3, wherein: The length of the steel wire rope (407) is greater than 30 meters.

7. The wind turbine generator variable pitch gearbox replacement hoist tooling of claim 2, wherein: A handle (409) is fixedly connected to the right side of the winch (402).

8. The wind turbine generator variable pitch gearbox replacement hoist tooling of claim 1, wherein: A hanging ring (5) is fixedly connected to the top surface of the support plate (3), and a through slot is formed in the left side of the connecting frame (1).

9. The wind turbine generator variable pitch gearbox replacement hoist tooling of claim 1, wherein: The clamping assembly (41) comprises two clamping plates (412) located on the inner side of the connecting frame (1), a threaded rod (411) is fixedly connected to the rear side of each clamping plate (412), and the rear end face of the threaded rod (411) extends to the rear side of the connecting frame (1) through the inner side of the connecting frame (1).

10. The wind turbine generator variable pitch gearbox replacement hoist tooling of claim 9, wherein: A friction pad (413) is arranged on the front side of the clamping plate (412), and the rear side of the friction pad (413) is fixedly connected to the front side of the clamping plate (412).

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