Supporting and moving tool for front end cover of wind generating set

Abstract

The utility model discloses a wind generating set front end cover supporting and moving tool, the front end cover is provided with a plurality of through holes evenly distributed in the circumferential direction of the front end cover and a mounting hole used for being sleeved with a main shaft, the main shaft penetrates through the mounting hole of the front end cover, and the tool comprises a screw rod, a nut and a universal wheel; one end of the screw rod is connected with the universal wheel, the universal wheel is in contact with the main shaft, the nuts are arranged on the two sides of the through hole of the front end cover respectively, and the other end of the screw rod penetrates through the nuts and the through hole of the front end cover in the radial direction to form detachable connection; the universal wheel and the screw rod are combined, so that the device is not limited by the size and radian of the main shaft; wherein the universal wheel is made of a rubber material, paint on the surface of the main shaft cannot be damaged, and when the universal wheel is aligned with the front end cover and a bearing seat mounting hole, the front end cover does not need to be lifted manually and effortlessly, and only the front end cover needs to be rotated; meanwhile, a large-diameter gasket is adopted, the device is suitable for various sizes of front end cover mounting holes, and nuts are prevented from falling into the mounting holes of the front end cover.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting and moving the front end cover of a wind generator set, in particular to a tool for supporting and moving the front end cover of a wind generator set. Background Art

[0002] The shaft system of the single-point and double-point support structure of the wind turbine generator set is equipped with a front end cover, which is installed on the bearing seat when the main shaft is in a vertical state. A sealing ring is pre-installed on the front end cover. In order to prevent the sealing ring from being squeezed and deformed, the sealing ring cannot be used to support the load after the front end cover is pre-inserted into the main shaft. There is also a relatively long time before the front end cover is installed on the bearing seat, so the front end cover needs to be supported for a period of time. As wind turbines become larger and larger, the front end cover is also getting larger and heavier. Manual lifting and installation are difficult and pose a safety hazard. Currently, there are two types of support and assembly tools commonly used in this field to assist the front end cover. The first is to support the front end cover with stacked wooden blocks, but this method requires manual lifting when lifting the front end cover, which only serves as a support and does not serve the purpose of lifting and assisting assembly. The second method is to design a special tool. The bottom of the tool is a base that conforms to the curvature of the main shaft's big end flare. A jack is placed on the base. Three of these structures are required to be evenly distributed on the main shaft flange surface, and the front end cover is supported on the jack. This method can solve the problem of supporting and lifting the front end cover to assist in assembly, but it has three disadvantages: 1) Since the curvature of the main shaft's big end flare is inconsistent, this tool can only be used for a specific model and cannot meet the requirements of spindles with all curvatures; 2) When the front end cover is aligned with the bearing seat mounting hole, it is necessary to lift the front end cover manually and rotate it, which is laborious and poses a safety hazard; 3) The price of the tool base and jack is much more expensive than directly using wooden blocks. Utility Model Content

[0003] The purpose of the utility model is to solve the deficiencies in the prior art and provide a mobile tooling for supporting the front end cover of a wind turbine generator set, which supports the front end cover and can move the front end cover to achieve the alignment of the front end cover and the bearing seat, thereby achieving the purpose of being universal for most models and at low cost.

[0004] To achieve the above-mentioned purpose, the technical solution provided by the present invention is: a front end cover supporting mobile tooling for a wind turbine generator set, the front end cover is provided with a plurality of through holes evenly distributed along its circumference and a mounting hole for inserting the main shaft, the main shaft passes through the mounting hole of the front end cover, and the tooling includes a screw, a nut and a universal wheel; one end of the screw is connected to the universal wheel, the universal wheel is in contact with the main shaft, the nuts are respectively arranged on both sides of the through hole of the front end cover, and the other end of the screw radially passes through the nut and the through hole of the front end cover to form a detachable connection.

[0005] Furthermore, it also includes a washer; the washer is arranged between the nut and the front end cover.

[0006] Furthermore, the diameter of the washer is larger than the diameter of the nut.

[0007] Furthermore, the universal wheel is a rubber universal wheel.

[0008] Furthermore, the nut is a hexagonal nut.

[0009] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0010] The utility model uses a combination of a universal wheel and a screw, which is not limited by the size and curvature of the main shaft; the universal wheel is made of rubber and will not damage the paint on the surface of the main shaft. When the universal wheel is aligned with the front end cover and the mounting hole of the bearing seat, there is no need to lift the front end cover with effort, and only the front end cover needs to be rotated; at the same time, a large-diameter washer is used, which is suitable for various sizes of the front end cover mounting holes and prevents the nut from falling into the mounting hole of the front end cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the present utility model.

[0012] Figure 2 This is a schematic diagram of the installation structure of the utility model and the front end cover.

[0013] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0014] Figure 4 It is a schematic diagram of the installation structure between the utility model and the front end cover, the main shaft and the bearing seat.

[0015] Figure 5 for Figure 4 A partial enlarged view of point B in the middle. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to specific embodiments.

[0017] See also Figures 1 to 5 As shown, the front end cover supporting movable tooling of the wind turbine generator set provided in this embodiment, the front end cover 3 is provided with six through holes evenly distributed along its circumference and a mounting hole for inserting the main shaft 4, the main shaft 4 passes through the mounting hole of the front end cover 3, and the bearing seat 5 is inserted into the main shaft 4. The tooling 1 includes a screw 101, a hexagonal nut 102, a rubber universal wheel 103 and a washer 104.

[0018] One end of the screw rod 101 is connected to the rubber universal wheel 103, and the rubber universal wheel 103 is in contact with the main shaft 4. The hexagonal nuts 102 are respectively arranged on both sides of the through hole of the front end cover 3. The other end of the screw rod 101 radially passes through the hexagonal nut 102 and the through hole of the front end cover 3 to form a detachable connection. The washer 104 is arranged between the hexagonal nut 102 and the front end cover 3, and the diameter of the washer 104 is larger than the diameter of the hexagonal nut 102.

[0019] After the crane hoists the front end cover 3 into the main shaft 4 and drops it to the preset height, point one end of the three screws 101 with the rubber universal wheel 103 downward, and insert a hexagonal nut 102 and a washer 104 in sequence. Then, the three screws 101 are passed through the three through holes of the front end cover 3, and the lengths of the three screws 101 exposed from the front end cover 3 are adjusted to be the same. Then, a washer 104 and a hexagonal nut 102 are inserted respectively, and the hexagonal nuts 102 on the upper and lower ends of the front end cover are tightened. Then, the front end cover 3 is slowly lowered until the three screws are The rubber universal wheel 103 of 101 is supported on the main shaft 4. At this time, the front end cover 3 is supported on the main shaft 4, and it is ensured that the sealing ring 2 installed on the inner ring of the front end cover 3 will not be squeezed, and the rubber universal wheel 103 will not damage the paint on the main shaft 4; when the front end cover 3 needs to be installed on the bearing seat 5, it is necessary to align the mounting holes of the front end cover 3 and the bearing seat 5. Because there is a rubber universal wheel 103 below, the front end cover 3 can be easily moved, and the flange through hole 301 of the front end cover 3 is aligned with the threaded hole 501 on the flange mounting surface of the bearing seat 5.

[0020] The above-described embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any changes made based on the shape and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mobile tooling for supporting a front cover of a wind turbine generator set, wherein the front cover is provided with a plurality of through holes evenly distributed along its circumference and a mounting hole for receiving a main shaft, wherein the main shaft passes through the mounting hole of the front cover, characterized in that: The tooling includes a screw, a nut and a universal wheel; one end of the screw is connected to the universal wheel, the universal wheel is in contact with the main shaft, the nuts are respectively arranged on both sides of the through hole of the front end cover, and the other end of the screw radially passes through the nut and the through hole of the front end cover to form a detachable connection.

2. The wind turbine generator front cover supporting movable tooling according to claim 1, characterized in that: Also included is a washer; the washer is arranged between the nut and the front end cover.

3. The wind turbine generator front cover supporting movable tooling according to claim 2, characterized in that: The diameter of the washer is larger than the diameter of the nut.

4. The wind turbine generator front cover supporting movable tooling according to claim 1, characterized in that: The universal wheel is a rubber universal wheel.

5. The wind turbine generator front cover supporting movable tooling according to claim 1, characterized in that: The nut is a hexagonal nut.

Images