A hoist device for a generator cooling fan motor

Abstract

This utility model discloses a hoisting device for a generator cooling fan motor, relating to the field of generator tooling technology. It includes a crossbeam, a fixing component, and a hoisting component. The fixing component is mounted on the crossbeam, and one end of the hoisting component is movably mounted inside the crossbeam, while the other end extends outside the crossbeam. Based on the existing engine room structure, this utility model eliminates the need for additional hoisting points. It solves space constraints through modular components, reducing reliance on manual labor; it increases per capita efficiency while eliminating the risk of manual lifting and reducing the probability of tools falling.

Description

Technical Field

[0001] This utility model relates to the field of generator tooling technology, and in particular to a hoisting device for a generator cooling fan motor. Background Technology

[0002] During the operation of wind turbine units, the failure rate of generator cooling fan motors has increased significantly over time. Weighing up to 150 kg and with limited working space in the nacelle, and no available lifting points directly above the motor, traditional replacement methods require manual lifting, posing risks of falling objects and equipment drops. This results in low efficiency and high danger. Currently, the lack of specialized tooling leads to high personnel and time consumption, increasing maintenance costs.

[0003] Therefore, there is an urgent need for a safe and efficient hoisting device to reduce risks and improve efficiency. Utility Model Content

[0004] To address the existing problems, this utility model provides a hoisting device for a generator cooling fan motor.

[0005] To achieve the objectives of this utility model, the technical solution adopted is as follows:

[0006] A hoisting device for a generator cooling fan motor includes a crossbeam, a fixing component, and a hoisting component, wherein the fixing component is mounted on the crossbeam, and one end of the hoisting component is movably mounted inside the crossbeam, and the other end extends to the outside of the crossbeam.

[0007] Based on the above technical solution, the fixing component further includes a fixing bracket, a fixing fixture, a first fixing plate and a second fixing plate, and the fixing fixture is installed on the crossbeam, and the fixing bracket is installed on the fixing fixture through the first fixing plate and the second fixing plate.

[0008] Furthermore, based on the above technical solution, the fixed bracket is a U-shaped bracket.

[0009] Based on the above technical solution, further, each of the two ends of the first fixing plate and the second fixing plate is provided with a mounting hole, and the U-shaped bent free end of the fixing bracket passes through the mounting hole.

[0010] Based on the above technical solution, the fixing fixture further includes a limiting part and a fixing part. The fixing part is fixedly installed at one end of the limiting part and extends away from the limiting part, and the limiting part and the crossbeam are fixedly connected by a fixing screw.

[0011] Based on the above technical solution, furthermore, the limiting part has a hollow structure inside and is sleeved on the outside of the crossbeam.

[0012] Based on the above technical solution, further, the extended end of the fixing part is provided with multiple fixing holes, each fixing hole corresponding to a mounting hole.

[0013] Based on the above technical solution, both the first fixing plate and the second fixing plate are designed as long strip plate structures.

[0014] Based on the above technical solution, further, the fixing components are provided in two sets, the hoisting components are provided in one set, and the hoisting components move between the two sets of fixing components.

[0015] Based on the above technical solution, the hoisting assembly further includes a first pulley, a second pulley, and a lifting ring, with one end of the lifting ring connected to the first pulley and the second pulley respectively, and both the first pulley and the second pulley being located inside the crossbeam.

[0016] Compared with the prior art, the beneficial effects of this utility model are specifically reflected in:

[0017] This invention is based on the existing nacelle structure, eliminating the need for additional lifting points. It solves space constraints through modular components, reducing reliance on manual labor; it increases per capita efficiency while eliminating the risk of manual lifting and reducing the probability of tools falling. Furthermore, the tooling structure is simple, low-cost, portable, and detachable, significantly reducing wind turbine downtime and power loss, and improving unit availability. In addition, operator safety is ensured, and maintenance costs and risks are greatly reduced, making it highly economical and worthy of widespread adoption. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the hoisting device of this utility model;

[0019] Figure 2 This is a bottom view of the hoisting device of this utility model;

[0020] Figure 3 This is a schematic diagram of the hoisting assembly of this utility model;

[0021] Figure 4 This is a schematic diagram showing the usage state of the hoisting device of this utility model;

[0022] Reference numerals: 1. Crossbeam; 2. Fixed bracket; 3. Fixed fixture; 4. First fixed plate; 5. Second fixed plate; 6. Fixed set screw; 7. Limiting part; 8. Fixed part; 9. First pulley; 10. Second pulley; 11. Lifting ring; 12. Crossbeam; 13. Cooling motor. Detailed Implementation

[0023] The present invention will be further described and illustrated below with reference to the accompanying drawings and specific embodiments. The technical features of each embodiment of the present invention can be combined accordingly, provided that there is no mutual conflict.

[0024] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below. Technical features in various embodiments of this utility model can be combined appropriately without conflict.

[0025] In the description of this utility model, it should be understood that when an element is considered to be "connected" to another element, it can be directly connected to the other element or indirectly connected, i.e., there is an intermediate element. Conversely, when an element is said to be "directly" connected to another element, there is no intermediate element.

[0026] In the description of this utility model, it should be understood that the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include at least one of those features.

[0027] Example

[0028] Combination Figure 1 and Figure 2 As shown, this embodiment provides a hoisting device for a generator cooling fan motor, which includes a crossbeam 1, a fixing component, and a hoisting component. The crossbeam 1 is preferably a rectangular square tube. The fixing component is installed on the crossbeam 1. One end of the hoisting component is movably installed inside the crossbeam 1, and the other end extends to the outside of the crossbeam 1. Preferably, there are two sets of fixing components and one set of hoisting components, and the hoisting component moves between the two sets of fixing components.

[0029] In this embodiment, the fixing component includes a fixing bracket 2, a fixing fixture 3, a first fixing plate 4, and a second fixing plate 5. The fixing fixture 3 is installed on the crossbeam 1, and the fixing bracket 2 is installed on the fixing fixture 3 through the first fixing plate 4 and the second fixing plate 5. Specifically, the fixed bracket 2 is preferably a U-shaped bracket; the first fixed plate 4 and the second fixed plate 5 have the same shape and structure, both preferably long strip-shaped structures, and each of the two ends of the first fixed plate 4 and the second fixed plate 5 is provided with a mounting hole, through which the free end of the U-shaped bend of the fixed bracket 2 passes; the fixed fixture 3 includes a limiting part 7 and a fixing part 8, the fixing part 8 is fixedly installed at one end of the limiting part 7 and extends away from the limiting part 7, and the extended end of the fixing part 8 is provided with multiple fixing holes, each fixing hole corresponding to a mounting hole, that is, the free end of the U-shaped bend of the fixed bracket 2 passes through the fixing hole and the mounting hole, thereby realizing the connection between the fixed bracket 2, the fixed fixture 3 and the first fixed plate 4 and / or the second fixed plate 5, and the limiting part 7 is hollow inside, which is sleeved on the outside of the crossbeam 1, and the limiting part 7 and the crossbeam 1 are fixedly connected by the fixing screw 6.

[0030] In some embodiments, the U-shaped screw end of the fixing bracket 2 can be mounted across the crossbeam 1, at which time the crossbeam 1 is located inside the U-shape, and the two free ends of the U-shaped screw end pass through the mounting holes at both ends of the same first fixing plate 4 or second fixing plate 5 respectively.

[0031] In other embodiments, the U-shaped screw end of the fixed bracket 2 is not mounted across the crossbeam 1. In this case, the fixed bracket 2 is located on one side of the crossbeam 1, and the two free ends of the U-shaped screw end of the fixed bracket 2 pass through a mounting hole of the first fixed plate 4 and a mounting hole of the second fixed plate 5, respectively. Preferably, each fixed fixture 3 is assembled with two fixed brackets 2, and the two fixed brackets 2 are arranged on both sides of the fixed fixture 3 through the first fixed plate 4 and the second fixed plate 5, and each fixed bracket 2 is connected to the two fixed plates.

[0032] Reference Figure 3 As shown, in this embodiment, the hoisting assembly includes a first pulley 9, a second pulley 10, and a lifting ring 11. One end of the lifting ring 11 is connected to the first pulley 9 and the second pulley 10, and both the first pulley 9 and the second pulley 10 are located inside the crossbeam 1. The other end of the lifting ring 11 extends to the outside of the crossbeam 1, and the end of the lifting ring 11 extending to the outside can be connected to the cooling motor 13 by means of a cable or other fixed method. Furthermore, the first pulley 9 and the second pulley 10 can move inside the crossbeam 1. Specifically, a slide rail that cooperates with the first pulley 9 and the second pulley 10 can be provided inside the crossbeam 1 to facilitate their movement.

[0033] Specifically, the working principle of this device is as follows:

[0034] Reference Figure 4 As shown, by measuring the distance between the two existing transverse beams 12 in the engine compartment, a rectangular square tube of suitable length is selected as the transverse beam 1 of this fixture. It is erected above the two existing transverse beams 12, perpendicular to them, so that the transverse beam 1 of the fixture is directly above the cooling motor 13. A movable lifting assembly is formed inside the transverse beam 1 by adding a first pulley 9, a second pulley 10, and a lifting ring 11, used to lift the cooling motor 13 and move its position. Two identical fixing assemblies are installed at both ends of the transverse beam 1 to fix the entire lifting device. The transverse beam 1 is fixed by side fastening with fixing screws 6. The screw end of the fixing bracket 2 passes through the two transverse beams 12 of the engine compartment above the cooling motor 13, and the engine compartment transverse beam 1 is inserted into the fixing bracket 2. Nuts and washers are used to fix the engine compartment transverse beam 12, thus fixing the fixture to the engine compartment transverse beam 12. The design utilizes the existing cabin structure, eliminating the need for additional lifting points. It solves space constraints through modular components and reduces reliance on manual labor.

[0035] It should be noted that this device can be used for the disassembly and assembly of generator cooling fan motors in wind turbine maintenance scenarios, and is especially suitable for environments with limited nacelle space and no dedicated lifting points. Its design principle can be extended to other high-altitude heavy equipment replacement scenarios, such as similar industrial equipment maintenance and the installation of large components in confined spaces, making it widely applicable.

[0036] On-site testing revealed that using this device reduced the number of workers from four to two, shortened the total time from four hours to two hours, and doubled the efficiency per worker. It also eliminated the risk of manual lifting and reduced the probability of tools falling. The tooling cost is only about 390 yuan, is portable and detachable, significantly reducing fan downtime and power loss, and improving unit availability. Furthermore, worker safety is ensured, maintenance costs and risks are greatly reduced, demonstrating high economic viability and promotional value.

[0037] The above are merely embodiments of this utility model, described in a relatively specific and detailed manner, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A hoisting device for a generator cooling fan motor, characterized in that, It includes a crossbeam, a fixing component, and a lifting component. The fixing component is installed on the crossbeam, and the lifting component is movably installed inside the crossbeam at one end and extends to the outside of the crossbeam at the other end.

2. A hoist for an electric generator cooling fan motor as defined in claim 1, wherein, The fixing assembly includes a fixing bracket, a fixing fixture, a first fixing plate, and a second fixing plate. The fixing fixture is installed on the crossbeam, and the fixing bracket is installed on the fixing fixture via the first fixing plate and the second fixing plate.

3. A hoist for an electric generator cooling fan motor as defined in claim 2 wherein, The fixed bracket is a U-shaped frame.

4. A hoisting arrangement for a generator cooling fan motor according to claim 2 or 3, characterised in that, Each of the first and second fixing plates has a mounting hole at both ends, and the free end of the U-shaped bend of the fixing bracket passes through the mounting hole.

5. A hoist for an electric generator cooling fan motor as defined in claim 4 wherein, The fixed fixture includes a limiting part and a fixing part. The fixing part is fixedly installed at one end of the limiting part and extends away from the limiting part. The limiting part and the crossbeam are fixedly connected by a fixing screw.

6. A hoist for an electric generator cooling fan motor according to claim 5, wherein The limiting part has a hollow structure inside and is sleeved on the outside of the crossbeam.

7. A hoist assembly for a generator cooling fan motor as defined in claim 5 wherein, The extended end of the fixing part has multiple fixing holes, each fixing hole corresponding to a mounting hole.

8. A hoist assembly for a generator cooling fan motor as defined in claim 4 wherein, Both the first fixing plate and the second fixing plate are designed as long strip-shaped structures.

9. A hoist assembly for a generator cooling fan motor as defined in claim 1, wherein, The fixed components are provided in two sets, and the hoisting components are provided in one set, with the hoisting components moving between the two sets of fixed components.

10. A hoist assembly for a generator cooling fan motor as defined in claim 1, wherein, The hoisting assembly includes a first pulley, a second pulley, and a lifting ring, with one end of the lifting ring connected to the first pulley and the second pulley respectively, and both the first pulley and the second pulley being located inside the crossbeam.

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