Rotor shaft supporting device of wind driven generator

Abstract

The utility model discloses a supporting device for a rotor shaft of a wind driven generator. The supporting device comprises a connecting arm and a screw rod, the connecting arm is arranged below a rotor shaft of the generator, a bottom plate of the connecting arm is parallel to the rotor shaft, and one end of the connecting arm is fixed to the mounting end face of a bearing end cover of the generator through a bolt. The other end of the connecting arm is vertically and fixedly connected with three or more lead screws in a threaded mode, a supporting plate is arranged between the top ends of the lead screws in a penetrating mode, the lead screws are sleeved with limiting nuts arranged on the two sides of the supporting plate in a threaded mode, the top face of the supporting plate is provided with one or more supporting wheel sets through a connecting frame, and each supporting wheel set comprises two bearings which are rotationally arranged side by side. The supporting device has the advantages that the supporting device is fixed on the mounting end face of the bearing end cover of the generator through the arc-shaped plate, the two symmetrical bearings effectively support the rotor shaft, in addition, the height position of the supporting plate can be adjusted through the lead screw, so that the supporting device is suitable for generators of different specifications, and the universality is reliable.

Description

Technical field:

[0001] The utility model relates to the technical field of wind generator maintenance equipment, in particular to a wind generator rotor shaft supporting device. Background technology:

[0002] Lat-free tape is an indispensable fixing material in wind turbines. The rotor winding ends of wind turbines are usually tied and fixed with lat-free tape. The insulating lat-free tape is beneficial to increase the creepage distance of the winding, reduce the magnetic leakage at the winding ends, and improve the electrical performance. When the lat-free tape is wrapped around the rotor shaft in the wind turbine tower, the rotor shaft needs to be supported.

[0003] At present, simple brackets are usually used to support the rotor shaft in the tower. However, in daily maintenance work, the rotor shafts of wind turbines of different specifications are wrapped with non-weft belts. The heights of the rotor shafts of wind turbines of different specifications from the ground are also different. It is necessary to place iron plates and other supports at the bottom of the existing brackets. The entire adjustment process is cumbersome and has poor practicality and versatility. Utility model content:

[0004] The purpose of the utility model is to provide a convenient, practical, universal and reliable wind turbine rotor shaft supporting device.

[0005] The present invention is implemented by the following technical scheme: a wind turbine rotor shaft support device, which includes a connecting arm and a screw rod; the connecting arm is placed below the rotor shaft of the generator, and the bottom plate of the connecting arm is arranged parallel to the rotor shaft, and one end of the connecting arm is fixed to the mounting end surface of the bearing end cover of the generator by a bolt; the other end of the connecting arm is vertically screwed with three or more screw rods, a support plate is passed through the top end of each screw rod, and each screw rod is sleeved with a limit nut screwed on both sides of the support plate, and the top surface of the support plate is installed with one or more support wheel groups through a connecting frame, and each support wheel group includes two bearings arranged to rotate side by side, and the axis of the bearing is arranged parallel to the rotor shaft.

[0006] Furthermore, a guide column is slidably provided in the middle of the support plate, the lower end of the guide column is fixed on the connecting arm, and the guide column is vertically arranged relative to the connecting arm.

[0007] Furthermore, a level is fixed on the top surface of the support plate.

[0008] Furthermore, the connecting arm includes two arc-shaped plates and the bottom plate fixed between the bottom ends of the two arc-shaped plates.

[0009] Advantages of the utility model: The utility model is fixed to the bearing end cover mounting end face of the generator through an arc plate, and the two symmetrical bearings effectively support the rotor shaft. In addition, the height of the support plate can be adjusted by a screw rod to be suitable for use with generators of different specifications, and the versatility is reliable. Description of the drawings:

[0010] Figure 1 It is a structural diagram of the present utility model.

[0011] Figure 2 for Figure 1 Right view of .

[0012] The components in the accompanying drawings are marked as follows: connecting arm 1, curved plate 1.1, base plate 1.2, generator 2, rotor shaft 3, bolt 4, screw 5, support plate 6, limit nut 7, connecting frame 8, bearing 9, guide column 10, level 11. Specific implementation method:

[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] In the description of the present invention, it should be noted that the terms "center", "up", "down", "front", "back", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0015] like Figure 1 and Figure 2As shown, this embodiment provides a wind turbine rotor shaft support device, which includes a connecting arm 1 and a screw 5; the connecting arm 1 includes two arc-shaped plates 1.1 and a bottom plate 1.2 fixed between the bottom ends of the two arc-shaped plates 1.1. The connecting arm 1 is placed below the rotor shaft 3 of the generator 2, and the bottom plate 1.2 of the connecting arm 1 is arranged parallel to the rotor shaft 3. The two arc-shaped plates 1.1 of the connecting arm 1 are respectively fixed to the mounting end surface of the bearing end cover of the generator 2 by bolts 4, playing an effective supporting role; the other end of the connecting arm 1 is vertically screwed with four screws 5. A support plate 6 is horizontally passed through the top of each screw rod 5. A limit nut 7 is screwed on each screw rod 5 and is placed on both sides of the support plate 6. The two limit nuts 7 abut against the corresponding two side plate surfaces of the support plate 6. According to the different specifications of the generator 2, the height position of the support plate 6 is adjusted by screwing each limit nut 7; a group of support wheel groups are installed on the top surface of the support plate 6 through the connecting frame 8. The support wheel group includes two bearings 9 arranged to rotate side by side. The axis of the bearing 9 is arranged parallel to the rotor shaft 3. The two bearings 9 effectively support the rotor shaft 3.

[0016] A guide column 10 is slidably provided in the middle of the support plate 6. The lower end of the guide column 10 is fixed on the bottom plate 1.2 of the connecting arm 1. The guide column 10 is vertically arranged relative to the connecting arm 1. The guide column 10 is helpful to improve the stability of the support plate 6. A spirit level 11 is fixed on the top surface of the support plate 6 to ensure the levelness after adjusting the position of the support plate 6, thereby ensuring the reliability of the present utility model.

[0017] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wind turbine rotor shaft support device, characterized in that: It includes a connecting arm and a screw rod; the connecting arm is placed below the rotor shaft of the generator, and the bottom plate of the connecting arm is arranged parallel to the rotor shaft, and one end of the connecting arm is fixed to the mounting end surface of the bearing end cover of the generator by a bolt; The other end of the connecting arm is vertically screwed and fixed with three or more screw rods, a support plate is passed between the top ends of the screw rods, and each screw rod is sleeved with a limit nut screwed on both sides of the support plate. The top surface of the support plate is equipped with one or more support wheel groups through a connecting frame, and each support wheel group includes two bearings arranged to rotate side by side, and the axes of the bearings are arranged parallel to the rotor shaft.

2. The wind turbine rotor shaft support device according to claim 1, characterized in that: A guide column is slidably provided in the middle of the support plate, the lower end of the guide column is fixed on the connecting arm, and the guide column is vertically arranged relative to the connecting arm.

3. The wind turbine rotor shaft support device according to claim 1 or 2, characterized in that: A level is fixed on the top surface of the support plate.

4. The wind turbine rotor shaft support device according to claim 3, characterized in that: The connecting arm includes two arc-shaped plates and the bottom plate fixed between the bottom ends of the two arc-shaped plates.

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