Gear box elastic supporting and resetting device of wind generating set

Abstract

An elastic supporting and resetting device for a gearbox of a wind generating set comprises a tool supporting seat, a hydraulic jack and two tool supporting plates, a plurality of penetrating holes are formed in the two sides of each tool supporting plate, and a plurality of tool screws are connected between the two tool supporting plates; in conclusion, the utility model aims to solve the problem that the elastic support of the gear box moves due to the change of wind power and reduce the maintenance cost and time caused by the displacement of the elastic support, and the purpose of directly resetting the elastic support on the tower is realized by using the special tool (comprising the tool supporting seat, the hydraulic jack, the tool supporting plate and the like); the inconvenience that the gear box needs to be detached from the tower for maintenance in a traditional method is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind power generation, and in particular relates to an elastic support resetting device for a gear box of a wind power generator set. Background Art

[0002] During wind turbine operation, the gearbox is subject to axial forces generated by constantly fluctuating wind conditions. The elastic supports on either side of the gearbox, acting as positioning supports, are subject to repeated push and pull forces. If the forces exceed the holding friction of the elastic supports, they may begin to move, affecting the gearbox's operational stability and service life. Severe movement can even cause the gearbox to tip over, a safety hazard.

[0003] Under the current circumstances, if the displaced elastic support needs to be reset, the gearbox can only be lowered from the tower for maintenance. This maintenance plan has a long response time, high operation and maintenance costs, and great safety risks. The construction period is greatly affected by the weather and road conditions in the wind farm. Utility Model Content

[0004] The utility model aims to provide a gearbox elastic support reset device for a wind turbine generator set, which solves the technical problems of the existing maintenance solution for resetting the elastic support that has moved and shifted, such as long response time, high operation and maintenance costs, and great safety risks.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A gearbox elastic support reset device for a wind turbine generator set includes a tool support seat, a hydraulic jack and two tool support plates. A plurality of through-holes are opened on both sides of each tool support plate. A plurality of tool screws are connected between the two tool support plates. Each tool screw is inserted into a corresponding through-hole of the two tool support plates. Tool nuts are provided at both ends of the tool screws. The tool support seat is used to support the hydraulic jack. The piston rod of the hydraulic jack presses against the bottom of one of the tool support plates.

[0007] Furthermore, a plurality of ribs are provided on the tooling support plate.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: the adoption of the present invention can restore the normal operation of the gearbox in time, avoid the occurrence of safety accidents, and reduce the economic losses of the wind farm; using the elastic support reset device for tower maintenance, maintenance personnel only need to arrive with materials, equipment, and tools to go up the tower for maintenance, and there is no need to wait for the crane to enter the site; the present invention saves the cost of returning the gearbox to the factory, renting a crane, leveling the road surface, etc.; the maintenance work is completed inside the cabin throughout the process, and there is no need for an external crane to open the cabin cover, lift the box body, and other high-altitude open-air operations, which greatly reduces the safety risks; the cabin cover does not need to be opened during the maintenance process, so the maintenance personnel, various equipment and lines in the cabin are not affected by severe weather such as rain, snow, and scorching sun; the requirements for roads, weather, and especially wind speed are relatively low (compared with on-site maintenance by a crane), and the construction period is highly controllable;

[0009] The utility model aims to solve the problem of gear box elastic support movement caused by wind changes and reduce the maintenance cost and time caused by elastic support displacement. The solution achieves the purpose of directly resetting the elastic support on the tower by using special tooling (including tooling support seat, hydraulic jack and tooling support plate, etc.), avoiding the inconvenience of needing to take the gear box off the tower for maintenance in the traditional method. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0011] Figure 1 This is a structural diagram of an elastic support reset device for a gear box of a wind turbine generator set;

[0012] Figure 2 It is a structural diagram of the tooling support plate. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] The present invention is further described in detail below with reference to the embodiments.

[0015] like Figure 1 As shown, a specific embodiment of the gear box elastic support reset device of a wind turbine generator set provided by the present invention is as follows:

[0016] A gearbox elastic support and reset device for a wind turbine generator set includes a tooling support seat 1, a hydraulic jack 2 and two tooling support plates 3. A number of through-holes 4 are opened on both sides of each tooling support plate 3. A number of tooling screws 5 are connected between the two tooling support plates 3. Each tooling screw 5 is passed through the corresponding through-hole 4 of the two tooling support plates 3. Tooling nuts 6 are provided at both ends of the tooling screw 5. The tooling support seat 1 is used to support the hydraulic jack 2, and the piston rod of the hydraulic jack 2 is pressed against the bottom of one of the tooling support plates 3.

[0017] The specific implementation plan of the gearbox elastic support reset device of the utility model is as follows: the wind turbine is shut down and locked, and the work equipment and tools are hoisted onto the tower; a jack is placed under the box support arm on the side to be processed, and the gearbox is pre-tightened for support; a hydraulic wrench is used to loosen the nuts of the front and rear elastic support seats, and the jack is slightly lifted to facilitate the removal of the elastic tiles. The front elastic support seat cover is removed, the upper and lower elastic tiles and the old distance ring on the torque arm shaft are taken out, the old upper elastic tile is put back into the front elastic support seat, and the nuts of the support seat are tightened manually. The rear elastic support seat cover is removed, the upper and lower tiles and the old distance ring on the torque arm pin shaft are taken out, and the four studs are removed; the lower part of the rear elastic support seat is hoisted and placed in a vacant space in the cabin.

[0018] Then install the elastic support reset fixture and tighten the fixture bolts with a hydraulic wrench; loosen the hydraulic jack 2 to let the gearbox sink to its normal position, lock the front elastic support stud, and slightly push the hydraulic jack 2 until the torque arm touches the front elastic support upper tile; use hydraulic jack 2 in conjunction with the reset fixture to reset it; use a hydraulic wrench to loosen the nuts on the fixture, remove the bolts and reset the fixture; reinstall the lower part of the rear elastic support seat, install new elastic tiles, bolts, and the rear elastic support upper cover, and tighten the nuts; use a hydraulic wrench to loosen the front elastic support, remove the upper cover, remove the old elastic tiles, and hot-slip the wind direction gasket on the pin shaft; replace the new tiles, then install the upper cover, and tighten the bolts of the front and rear elastic supports with a hydraulic wrench. Drill screw holes on the outer sides of the upper and lower torque arm pin elastic support seats according to the elastic support dimensions and install baffles; install new torque arm pin baffles and buffer rubber pads, then apply thread locking glue to the bolts and tighten them; realign the gearbox, test run the fan, repaint the gearbox, and clean the site.

[0019] like Figure 2 As shown, a plurality of ribs 7 are provided on the tooling support plate 3 to increase the structural strength of the tooling support plate 3 .

[0020] It should be noted that, in this document, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0021] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gearbox elastic support reset device for a wind turbine generator set, characterized by: It includes a tooling support seat, a hydraulic jack and two tooling support plates. Several through holes are opened on both sides of each tooling support plate. Several tooling screws are connected between the two tooling support plates. Each tooling screw is passed through the corresponding through holes of the two tooling support plates. Tooling nuts are provided at both ends of the tooling screws. The tooling support seat is used to support the hydraulic jack, and the piston rod of the hydraulic jack is pressed against the bottom of one of the tooling support plates.

2. The gearbox elastic support reset device of a wind turbine generator set according to claim 1, characterized in that: A plurality of ribs are arranged on the tooling support plate.

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