CN219990945U - Dismounting tool suitable for yaw motor of wind turbine generator - Google Patents

Abstract

The utility model relates to the field of wind power technology, and in particular to a disassembly and assembly tool suitable for a yaw motor of a wind turbine, which includes a bracket with a plurality of legs, and each of the legs is equipped with a roller; a hoisting structure includes a suspension mounted on the The hand chain hoist on the bracket and the inner ring of the tooling for binding the yaw motor. The end of the sling of the hand chain hoist is provided with a first lifting ring; the first lifting ring is fixed with a steel wire rope with a hook, and its interior Wear a sling with hooks at both ends, and the sling is equipped with a tensioner; the utility model adopts the cooperation of the sling with a tensioner, a steel wire rope and a hand chain hoist, so that a single person can lift the The yaw motor performs attitude adjustment, which avoids the problem of the motor spindle touching the ground first during the lowering process and reduces damage to the motor spindle.

Description

A disassembly and assembly tool suitable for wind turbine yaw motors

Technical field

The utility model relates to the field of wind power technology, and in particular to a disassembly and assembly tool suitable for a yaw motor of a wind turbine unit.

Background technique

The first function of the wind turbine yaw system is to cooperate with the control system so that the wind rotor of the wind turbine is always facing the wind and fully utilize the wind energy; the second is to provide the necessary locking torque to ensure the safe operation of the wind turbine. . The yaw motor is an important part of the yaw system. It is different from ordinary motors in that it is installed vertically with the rotating shaft facing downwards to provide power output to drive the yaw gearbox. When the yaw motor fails and needs to be disassembled for maintenance or replacement, the space is small and it is difficult to disassemble and assemble the motor base and the motor. In addition, the yaw motor is heavy, so relying solely on manpower is inefficient and dangerous.

The Chinese utility model patent with the publication number CN218598291U discloses a wind turbine yaw motor replacement device, which includes a tooling outer ring and a tooling inner ring used to bind the yaw motor. The top of the tooling outer ring is equipped with a mounting beam, and the mounting beam is It is equipped with a hand chain hoist for lifting the inner ring of the tooling, which solves the problem of inconvenient replacement of the traditional yaw motor. When repairing or replacing a motor, it is usually necessary to lift the motor and place it on the wind turbine platform. There is no problem with normal lifting using the above solution. Since the lifting ring is close to the end of the motor (in order to maintain lifting stability and prevent swinging, the lifting ring needs to be deviated from the center of gravity), single-person operation is required. During the lowering process, it is difficult to adjust the attitude to make it horizontal (or deviate from the vertical state so that the rotating shaft does not contact the fan platform), which will cause damage to the motor rotating shaft.

Utility model content

The purpose of this utility model is to provide a disassembly and assembly tool suitable for the yaw motor of a wind turbine, so as to solve the problem in the prior art that the motor shaft is damaged due to difficulty in adjusting the attitude during the lowering process by a single person. In order to achieve the above objectives, the present utility model solves the problem through the following technical solutions:

The utility model provides a disassembly and assembly tool suitable for the yaw motor of a wind turbine, which includes:

A bracket has a number of legs, each of which is equipped with a roller;

The hoisting structure includes a hand chain hoist suspended on the bracket and an inner ring of the tooling for binding the yaw motor. The end of the sling of the hand chain hoist is provided with a first lifting ring; the first lifting ring is fixed with a belt A steel wire rope with a hook, and a sling with hooks at both ends is threaded inside the rope, and a tensioner is arranged on the sling.

As a further technical solution, the first hanging ring is a triangular ring, the hanging strap is flat and its width matches the bottom edge of the triangular ring.

As a further technical solution, the middle position of the bottom edge of the triangular ring protrudes outward to form an outer convex portion, and both sides form straight portions, and the steel wire rope is tied to the outer convex portion.

As a further technical solution, the straight parts are covered with sleeves.

As a further technical solution, the inner ring of the tooling is provided with an opening for exposing the lifting ring of the yaw motor itself.

As a further technical solution, the bracket is a tripod with a mounting base on the top, and each of the legs is hinged on the mounting base.

As a further technical solution, the hand chain hoist is suspended on the mounting base.

As a further technical solution, flexible ropes are provided between adjacent legs.

As a further technical solution, the roller is a universal wheel.

The beneficial effects of the above-mentioned utility model are as follows:

(1) This utility model uses a sling with a tensioner, a steel wire rope and a hand chain hoist to cooperate with each other. A single person can adjust the attitude of the yaw motor in the hoisted state, avoiding the situation where the motor spindle first touches the ground during the lowering process. problem and reduce damage to the motor spindle.

(2) In this utility model, a sleeve is provided on the straight part of the first lifting ring. The sleeve directly contacts the sling, reducing the friction between the sling and the straight part, which is beneficial to improving the relative sliding ability of the sling and the first lifting ring. Rideability.

Description of the drawings

The description and drawings that constitute a part of the present utility model are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute a limitation of the utility model. It should also be understood that the drawings are illustrated for simplicity and clarity and are not necessarily drawn to scale. The invention will now be described and explained with additional features and details by use of the accompanying drawings, in which:

Figure 1 shows a schematic diagram of the overall structure of a disassembly and assembly tool suitable for the yaw motor of a wind turbine in an embodiment of the present invention;

Figure 2 shows a schematic assembly diagram of the hoisting structure in the embodiment of the present utility model;

Figure 3 shows a schematic structural diagram of the first lifting ring in the embodiment of the present invention.

In the picture: 100, bracket; 110, leg; 120, universal wheel; 130, mounting base; 200, hoisting structure; 210, hand chain hoist; 220, sling; 230, first lifting ring; 231, triangular ring; 232 , outer convex part; 233, straight part; 234, sleeve; 240, tensioner; 250, wire rope; 260, tooling inner ring; 270, second lifting ring; 300, yaw motor; 310, third lifting ring; 320. Flange.

Detailed ways

The technical solutions in the typical embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the utility model.

As shown in Figure 1, this embodiment provides a disassembly and assembly tool suitable for the yaw motor of a wind turbine, including a bracket 100 and a hoisting structure 200.

The stand 100 has a plurality of legs 110, and each leg 110 is equipped with a roller. In this embodiment, the bracket 100 is a tripod. As the name suggests, it has three identical legs 110 and are evenly arranged. A mounting base 130 is provided on the top of the tripod, and the three legs 110 are evenly hinged on the mounting base 130. The structural form of the mounting base 130 is not limited to the circular shape in this embodiment, and other shapes can also be adopted. In some other embodiments, the stand 100 can also use a stand with more than three legs. However, considering the size of the operating space, ease of operation, and load-bearing, a tripod is a better choice.

It should be noted that the operating space where the yaw motor 300 is installed is limited, and after the yaw motor is repaired or replaced, other devices are not allowed to be left on the wind turbine. Therefore, the bracket 100 must be small in size to facilitate the operator's portability. The tripod can be retracted without occupying a large volume and meets the work requirements.

In this embodiment, the roller is a universal wheel 120. After the roller is provided, the yaw motor 300 can be placed at a designated position through the roller after the yaw motor 300 is disassembled and assembled. In the same way, the yaw motor placed at a designated position can also be moved to the installation station for installation.

In order to stabilize the unfolded bracket 100, flexible ropes are provided between adjacent legs 110, not shown in the figure, and their function is to mutually restrict the legs from opening outward and maintain a stable state. It can be understood that the flexible rope should be arranged on the upper part of the outrigger so as not to affect the lifting of the yaw motor. Of course, in other embodiments, the support legs 110 can also be limited at the mounting base 130, which will not be described again here.

The hoisting structure 200 includes a hand chain hoist 210 suspended on the bracket 100 and a tooling inner ring 260 binding the yaw motor 300 . Among them, the hand chain hoist 210 is a common lifting equipment in the prior art, and its structure will not be described in detail here. The hand chain hoist 210 is suspended on the mounting base 130 . The tooling inner ring 260 adopts the tooling inner ring structure disclosed in the public number CN218598291U. However, in this embodiment, the tooling inner ring 260 is improved to meet the needs of this embodiment. An opening is provided in the tooling inner ring 260 for the yaw motor 300 to expose its lifting ring. As shown in Figure 2, the own lifting ring of the yaw motor 300 is the third lifting ring 310, which is usually arranged at the center of gravity of the yaw motor. The inner ring 260 of the tooling has two symmetrical lifting rings, which are the second lifting rings 270. When installing, it should be noted that the connection between the two second lifting rings 270 should be perpendicular to the diameter line of the third lifting ring 310. And in order to avoid the problem of the yaw motor shaking during lifting, after the inner ring 260 of the tooling is installed, the second lifting ring 270 should be close to the tail of the yaw motor and deviate from the center of gravity. As shown in FIG. 2 , the second lifting ring 270 is above the third lifting ring 310 .

As shown in Figure 2, a first lifting eye 230 is provided at the end of the sling of the hand chain hoist 210. A steel wire rope 250 with a hook is fixed to the first lifting ring 230, and a sling 220 with hooks at both ends is passed through the first lifting ring 230. The sling 220 is equipped with a tensioner 240.

In this embodiment, the sling 220 adopts a flat sling, and the sling 220 is equipped with a tensioner 240. The tensioner 240 can adopt a tensioner structure similar to that disclosed in Publication No. CN218908317U. It should be noted that CN218908317U has improved the tensioner. The purpose of showing this patent here is to let those skilled in the art know what a tensioner is. It does not necessarily mean that the improved tensioner will be used, and the tensioner on the market will be used. Whatever you already have will do.

One end of the wire rope 250 needs to be fixed on the first lifting ring 230.

In specific applications, if it is only a lifting operation, the steel wire rope 250 may not be used. If the yaw motor 300 needs to be placed on the wind turbine platform, after the yaw motor is disassembled, the two hooks of the sling 220 are respectively connected to the second lifting ring 270 before lifting, and the hook of the wire rope 250 is connected to the third lifting ring 310. Adjust the tensioner 240 and the hand chain hoist 210 so that the sling 220 and the wire rope 250 are in the same tensioned state. After lifting, the yaw motor 300 moves to the designated position with the bracket 100. At this time, gradually loosen the tensioner 240. Under the action of the steel wire rope 250 and gravity, the yaw motor 300 gradually changes from a vertical state to a horizontal state. It can be understood that as long as the motor shaft is adjusted so that it does not contact the fan platform, usually the sling can be completely loosened. In Figure 2, the flange 320 is the installation position of the yaw motor. Due to the angle problem, the motor shaft is not shown. After repair or replacement of the yaw motor, the sling 220 and the steel wire rope 250 are also connected to the corresponding lifting rings, and the tensioner 240 is used to gradually tighten the sling. At this time, the yaw motor 300 gradually changes from the horizontal state to the vertical state until it yaws. The motor 300 is in a vertical state, and the bracket 100 is moved to allow the yaw motor to reach the installation station for installation.

As shown in FIG. 3 , the first hanging ring 230 is a triangular ring 231 . The hanging strap 220 is flat and its width matches the bottom edge of the triangular ring 231 .

The middle position of the bottom edge of the triangular ring 231 protrudes outward to form an outer convex portion 232, and both sides form straight portions 233. The steel wire rope 250 is bound to the outer convex portion 232. Since the sling 220 is in contact with the straight part 233, especially during the tightening or relaxing process, the sling 220 and the straight part 233 will slide relative to each other. The provision of the outer protruding part 232 can first reduce the interference of the fixed end of the wire rope 250 with the sling 220, and secondly Second, it can provide a fixed position for the steel wire rope 250 to prevent it from moving randomly at the bottom of the triangular ring 231.

In order to reduce the friction between the sling 220 and the straight part 233, sleeves 234 are set on the straight parts 233, and the sling directly contacts the sleeve 234, thereby reducing friction.

Although the present utility model has been disclosed above in terms of preferred embodiments, this is not intended to limit the present utility model. Anyone skilled in the art can utilize the methods and techniques disclosed above without departing from the spirit and scope of the present utility model. The content makes possible changes and modifications to the technical solution of the present utility model. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model that do not deviate from the technical solution of the present utility model are all It belongs to the protection scope of the technical solution of the present utility model.

Claims (9)

1. Disassembly and assembly tool suitable for yaw motor of wind turbine generator set, which is characterized by comprising:

the support is provided with a plurality of supporting legs, and each supporting leg is provided with a roller;

the hoisting structure comprises a chain block suspended on the bracket and an inner ring of a tool for binding a yaw motor, and a first hoisting ring is arranged at the tail end of a hoisting cable of the chain block; the first lifting ring is fixed with a steel wire rope with a lifting hook, a hanging belt with lifting hooks at two ends is arranged in the first lifting ring in a penetrating mode, and a tensioner is arranged on the hanging belt.

2. The assembly and disassembly tool for the yaw motor of the wind turbine generator system according to claim 1, wherein the first hanging ring is a triangular ring, and the hanging ring is flat and has a width matched with the bottom edge of the triangular ring.

3. The dismounting tool for the yaw motor of the wind turbine generator system according to claim 2, wherein the middle position of the bottom edge of the triangular ring protrudes outwards to form an outer protruding portion, straight portions are formed on two sides of the outer protruding portion, and the steel wire rope is tied to the outer protruding portion.

4. The assembly and disassembly tool for the yaw motor of the wind turbine generator set according to claim 3, wherein the straight portions are sleeved with sleeves.

5. The dismounting tool for the yaw motor of the wind turbine generator set according to claim 1, wherein an opening is formed in an inner ring of the tool for exposing a lifting ring of the yaw motor.

6. The assembly and disassembly tool for the yaw motor of the wind turbine generator system according to claim 1, wherein the support is a tripod, the top of the support is provided with a mounting seat, and each supporting leg is hinged to the mounting seat.

7. The assembly and disassembly tool for the yaw motor of the wind turbine generator set according to claim 6, wherein the chain block is suspended on the mounting base.

8. The assembly and disassembly tool for the yaw motor of the wind turbine generator set according to claim 7, wherein flexible ropes are arranged between adjacent support legs.

9. The assembly and disassembly tool for the yaw motor of the wind turbine generator set according to claim 1, wherein the idler wheels are universal wheels.