CN104828752A - Traction suspension device for fan repair - Google Patents

Abstract

The invention relates to a traction and suspension device for fan maintenance, which belongs to the technical field of fan. It includes a pulley block hanger, a working platform and a wheel mechanism installed on the working platform, a fixed pulley mechanism, a reel mechanism, and a wire rope. The pulley block hanger is fixed on the engine room above the working platform, and the working platform is an "L"-shaped frame. Structure, forming an upper and lower two-layer frame, one end of the two-layer frame is close to the tower, and this side is connected with a wheel mechanism that can be extended or retracted for supporting on the tower, and the upper and lower frames are equipped with reels Mechanism and fixed pulley mechanism, the steel wire rope on the reel is connected to the pulley on the pulley block hanger and the fixed pulley on the upper and lower frames of the "L" frame and fixedly connected to the working platform; Roll down to realize the rise and fall of the traction suspension device. The invention has a light and flexible structure, and is suitable for maintaining and repairing the outer facades of various wind power generator towers, the outer surface of the engine room and fan blades.

Description

A traction and suspension device for fan maintenance

technical field

The invention relates to a traction and suspension device for fan maintenance, belonging to the technical field of fan. In particular, it relates to a maintenance operation applied to blades, nacelles and towers of various wind power generators, and is suitable for working devices attached to the outer facade of wind power generator towers.

Background technique

With the shortage of energy, wind power generators are developing rapidly. There is a lack of special construction equipment for the maintenance of the inside and outside of the ultra-high large-scale wind turbine tower, the nacelle and the blades. A large number of imported equipment is used in the construction, or replaced by traditional construction equipment with a low safety factor and low work efficiency, which seriously affects my country's ultra-high The improvement of the technical level of construction equipment has hindered the supporting development of the ultra-high building construction industry. The maintenance and repair supporting equipment technology for the facade of the wind turbine tower, the outer surface of the nacelle and the blades of the wind turbine is still blank in China. However, the contradiction between the amount of maintenance work and maintenance equipment that has been presented year by year has been intensifying, which will eventually restrict the healthy development of wind power energy in my country. To this end, a variable-diameter attachment device for fan maintenance is designed to solve the actual maintenance and repair of various types of wind turbine tower facades, cabin outer surfaces, and fan blades.

Contents of the invention

In view of the above-mentioned technical problems, the present invention provides a traction and suspension device for maintenance of wind turbines, which can perform maintenance and repair operations on the facades of various wind turbine towers, the outer surface of the nacelle, and the blades of wind turbines.

The purpose of the present invention is achieved through the following technical solutions:

The invention includes a pulley block hanger, a working platform and a wheel mechanism installed on the working platform, a fixed pulley mechanism, a reel mechanism, and a steel wire rope. The pulley block hanger is fixed on the engine room above the working platform, and the working platform is "L" Type frame structure, forming an upper and lower two-layer frame. One end of the two-layer frame is close to the tower tube. This side is connected with a wheel mechanism that can be extended or retracted for supporting on the tower tube. The upper and lower frames are equipped with Drum mechanism and fixed pulley mechanism, the steel wire rope on the drum is connected to the pulley on the pulley block hanger and the fixed pulley on the upper and lower frames of the "L" frame and fixedly connected to the working platform; Up and down, realize the rise and fall of the traction suspension device.

Further, the wheel mechanism includes a telescopic mechanism, a connecting rod frame and a wheel. One end of the connecting rod frame is connected to a rotatable wheel, and the other end is hinged on the frame of the working platform. Rotating telescopic mechanism.

Further, the telescoping mechanism is a hydraulic cylinder or an electric push rod.

Further, the radius of the curved surface of the roller contacting the outer surface of the wind turbine tower of the said roller mechanism is greater than the radius of the outer surface of the fan tower, and the outer surface of the roller is provided with a high temperature resistant and wear-resistant material layer.

Further, the high temperature-resistant and wear-resistant material layer is synthetic rubber, synthetic resin, synthetic fiber or plastic.

Further, the reel of the reel mechanism is a capstan or winch, which is fixedly connected with the working platform.

The beneficial effects of the present invention are:

1. The present invention controls the lifting of the working platform through the cooperative connection of the pulley block hanger and the working platform, and the winding of the wire rope of the reel mechanism, so that the operator can check the outer facade of the wind power generator tower, the outer surface of the nacelle and the Maintenance and repair of fan blades. The wheel mechanism is used to support the working platform against the tower to strengthen the stability of the working platform.

2. The structure of the present invention is light and flexible, and has good adaptability to the outer facade of the wind turbine tower with variable diameter, and is suitable for maintenance and repair operations on the outer facade of the wind turbine tower, the outer surface of the engine room, and the fan blades.

Description of drawings

Fig. 1 is a schematic diagram of the maintenance work of fan blades according to the present invention.

Fig. 2 is a three-dimensional schematic diagram of the overall structure of the present invention.

Fig. 3 is a three-dimensional schematic diagram of the wheel mechanism of the present invention.

Fig. 4 is a three-dimensional schematic diagram of the pulley block hanger of the present invention.

In the figure: 1. Pulley, 2. Pulley block hanger, 3. Engine room, 4. Reel mechanism, 5. Tower, 6. Wheel mechanism, 7. Working platform, 8. Fixed pulley mechanism, 9. Telescopic mechanism, 10. Connecting rod frame, 11. Wheels.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

Embodiment 1: as shown in Figure 1, the present invention comprises pulley group hanger 2, work platform 7 and be installed on the wheel mechanism 6 on the work platform 7, fixed pulley mechanism 8, reel mechanism 4, steel wire rope, described pulley group hangs The frame 2 is fixed on the engine room 3 above the working platform 7. The working platform 7 is an "L"-shaped frame structure, forming an upper and lower two-layer frame. One end of the two-layer frame is close to the tower tube 5. This side is connected with a The back is used to support the pulley mechanism on the tower tube 5. The upper and lower frames are equipped with a reel mechanism 4 and a fixed pulley mechanism 8. The steel wire ropes on the reel mechanism 4 are respectively connected to the pulleys 1 and 1 on the pulley block hanger 2. The fixed pulleys on the upper and lower frames of the "L" frame are fixedly connected to the working platform 7; the lifting and lowering of the traction suspension device is realized through the roll-up and roll-down of the 4 pairs of wire ropes by the reel mechanism. Operators can perform maintenance and repair operations on the outer facade of the wind turbine tower, the outer surface of the nacelle, and the fan blades on the working platform 7 .

As shown in Figure 3, the said wheel mechanism 6 includes a telescopic mechanism 9, a connecting rod frame 10 and a wheel 11, one end of the connecting rod frame 10 is connected to the rotatable wheel 11, and the other end is hinged on the frame of the working platform 7 On, the telescoping mechanism 9 that drives its rotation is connected on the connecting rod frame 10 . The telescopic mechanism 9 is a hydraulic cylinder. The curved surface radius of the wheel 11 of the wheel mechanism 6 in contact with the outer surface of the fan tower is greater than the radius of the outer surface of the fan tower, and the outer surface of the wheel is provided with a high temperature resistant and wear-resistant material layer. The high temperature resistant and wear resistant material layer is synthetic rubber, synthetic resin, synthetic fiber or plastic.

As shown in FIG. 4 , the pulley block hanger 7 is an angle frame structure, and two rotatable pulleys 1 are respectively arranged on both sides.

The reel of the reel mechanism 4 is a capstan or winch, and is fixedly connected with the working platform 7 . Described fixed pulley mechanism 8 is made of the fixed pulley block that is fixed on the upper and lower frame of working platform 7 and the pulley on the pulley block hanger 7 cooperates.

When the present invention is in use, first the hydraulic cylinder of the wheel mechanism 6 is extended to a certain length, as shown in Figure 3, the traction suspension device at this time can contact with the fan tower 5, and the traction suspension device The attachment to the wind turbine tower 5 is completed. Then, the steel wire rope of the drum mechanism 4 is rolled up to complete the rise of the platform. When the platform is lifted to a specified height by the traction and suspension device by other working mechanisms, the operator enters the working platform 7 to realize the wind power generator tower. The maintenance and repair work of the facade, the outer surface of the engine room and the fan blades is shown in Figure 1.

As shown in Figure 1, after completing the maintenance and repair work on the outer facade of the wind turbine tower, the outer surface of the nacelle and the fan blades, the steel wire rope passed through the reel mechanism 4 will be rolled down to complete the descending operation of the platform. The platform lowers to the ground.

Embodiment 2: The difference between this embodiment and Embodiment 1 is that the telescopic mechanism 9 in this embodiment includes an electric push rod, that is, the hydraulic cylinder is replaced by an electric push rod.

Claims (6)

1. the traction suspension apparatus for fan repair, it is characterized in that: comprise assembly pulley suspension bracket (2), workplatform (7) and the roller mechanism (6) be arranged on workplatform (7), fixed pulley mechanism (8), drum mechanism built (4), steel rope, described assembly pulley suspension bracket (2) is fixed on the cabin of workplatform (7) top, workplatform (7) is " L " type framed structure, form upper and lower two-layer framework, there is one end of two-layer framework near tower cylinder, this side be connected with extended or retract for being supported on the roller mechanism on tower cylinder, levels framework is provided with drum mechanism built and fixed pulley mechanism, the fixed pulley that steel rope on reel connects on the levels framework of pulley on assembly pulley suspension bracket (2) and " L " type framework is respectively fixedly connected on workplatform (7), by drum mechanism built (4) on the volume of steel rope and under volume, realize rising and the decline of traction suspension apparatus.

2. according to claim 1 for the traction suspension apparatus of fan repair, it is characterized in that: described roller mechanism (6) comprises telescoping mechanism (9), connects bridge (10) and roller (11), described connection bridge one end connects rotatable roller, the other end is hinged on the framework of workplatform (7), connects telescoping mechanism bridge being connected with and driving it to rotate.

3. according to claim 2 for the traction suspension apparatus of fan repair, it is characterized in that: described telescoping mechanism is hydraulic ram or electric pushrod.

4. according to claim 2 for the traction suspension apparatus of fan repair, it is characterized in that: described roller mechanism (6) is greater than the radius of the outside face of blower fan tower barrel with the subsequent corrosion of the roller of blower fan tower barrel exterior surface, and roller outside face is provided with high temperature resistant, wear-resistant material layer.

5. according to claim 4 for the traction suspension apparatus of fan repair, it is characterized in that: described high temperature resistant, wear-resistant material layer is neoprene, synthetic resin, syntheticfibres or plastics.

6. according to claim 1 for the traction suspension apparatus of fan repair, it is characterized in that: the reel of described drum mechanism built (4) is capstan winch or winch, is fixedly connected with workplatform (7).