Main shaft bearing seat disassembling tool of wind driven generator
By using a cross-shaped tooling frame in conjunction with jacks, the problem of disassembling the main shaft bearing housing of a large wind turbine was solved, achieving a reliable and economical disassembly effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-07
AI Technical Summary
Existing technologies make it difficult to efficiently disassemble the main shaft bearing housing of large wind turbines, especially due to the large bearing diameter and uneven distribution of grease, which makes disassembly difficult.
A cross-shaped tooling frame is used to connect to the bearing housing, and the bearing is disassembled by pressing the bearing housing with jacks and pads. Disassembly is achieved by utilizing the reliable connection between the tooling frame and the bearing housing and the pressing action.
It enables reliable disassembly of the main shaft bearing housing of large wind turbines. The structure is simple and the operation is reliable, reducing disassembly costs and difficulties.
Smart Images
Figure CN224088939U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to wind driven generator maintenance technical field especially a kind of main shaft bearing seat disassembly tool of wind driven generator. BACKGROUND
[0002] As shown in Figure Figure 1 The main shaft bearing seat of wind driven generator includes bearing seat 100 and bearing 200, wherein bearing 200 is interference fitted in bearing seat 100. Since the diameter of bearing 200 can reach several meters, and the bearing 200 is full of lubricating grease, it is very difficult to disassemble bearing 200. At present, the bearing disassembly methods in the prior art mainly include knocking method, pulling-out method, pushing method and hot disassembly method, etc. Among them, the knocking method is to use hammer to knock copper bar or soft iron bar, and the bearing is disassembled by impact energy. The knocking force is usually applied to the inner ring of the bearing. This method can only be applied to small bearing disassembly. The pulling-out method is to use a special puller to slowly pull out the bearing by rotating the handle. Similarly, this method can also only be applied to small bearing disassembly. The pushing method is to use tools such as screw C-type chuck, mechanical press, hydraulic press or jack to disassemble the bearing by applying pressure. The hot disassembly method is to use the principle of thermal expansion and contraction of materials, pour machine oil heated to about 100℃ on the bearing, and then pull it out with a puller after the bearing ring is heated and expanded. Since the volume of the bearing of wind driven generator is large, the cost of oil pouring is high, and uneven heating is easy to occur.
[0003] Therefore, it is urgent to provide a main shaft bearing seat disassembly tool for wind driven generator, which is simple in structure and reliable in disassembly. UTILITY MODEL CONTENTS
[0004] In view of the above problems, the utility model aims to provide a main shaft bearing seat disassembly tool for wind driven generator. The utility model adopts the following technical solutions:
[0005] A main shaft bearing seat disassembly tool for wind driven generator is used to disassemble the bearing fitted in the bearing seat, which comprises a tool frame connected with the bearing seat at both ends, and a jack arranged between the outer bottom of the tool frame and the bearing. The tool frame has at least two ends.
[0006] Further, the end of the tool frame is connected with the bearing seat by bolts.
[0007] Further, a pad is arranged between the bottom of the jack and the bearing.
[0008] Further, the tool frame is cross-shaped.
[0009] Compared with the prior art, the utility model has the following beneficial effects:
[0010] (1) This utility model ensures the reliability of the connection between the tooling frame and the bearing seat by setting a cross-shaped tooling frame and connecting the end of the tooling frame with the bearing seat.
[0011] (2) This utility model sets up a jack and a pad, and squeezes them between the tooling frame and the bearing. By squeezing, the bearing is pushed downward to achieve bearing disassembly. Its operation is reliable.
[0012] In summary, this utility model has the advantages of simple structure and reliable disassembly, and has high practical and promotional value in the field of wind turbine maintenance technology. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope of protection. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the structure of a spindle bearing housing in the prior art.
[0015] Figure 2 This is a schematic diagram of the installation of this utility model.
[0016] Figure 3 This is a schematic diagram of the structure of this utility model.
[0017] In the above figures, the component names corresponding to the reference numerals are as follows:
[0018] 100. Bearing housing; 200. Bearing; 300. End cap connection hole; 1. Disassembly fixture; 11. Fixture frame; 12. Bolt; 13. Jack; 14. Spacer block. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of this utility model include, but are not limited to, the following embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.
[0020] In this embodiment, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.
[0021] The terms "first" and "second," etc., used in the specification and claims of this embodiment are used to distinguish different objects, not to describe a specific order of objects. For example, "first target object" and "second target object," etc., are used to distinguish different target objects, not to describe a specific order of target objects.
[0022] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.
[0023] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more. For example, multiple processing units means two or more processing units; multiple systems means two or more systems.
[0024] like Figures 1 to 3 As shown, this embodiment provides a disassembly fixture for the main shaft bearing housing of a wind turbine generator, used to disassemble the bearing 200 housed within the bearing housing 100. The disassembly fixture 1 includes a cross-shaped fixture frame 11 whose ends are respectively connected to the bearing housing 100; jacks 13 correspondingly positioned between the bottom outer side of the fixture frame 11 and the bearing 200; and pads 14 positioned between the bottom of the jacks 13 and the bearing 200. The ends of the fixture frame 11 are connected to the bearing housing 100 by bolts 12. The bolts 12 are connected to the bearing housing 100 via end cap connection holes 300 (existing components) on the end face of the bearing housing.
[0025] When in use, place the main shaft bearing housing (rear) of the wind turbine on the support platform, place four jacks 13 and several pads 14, and use bolts 12 to install the tooling frame 11 on the bearing housing 100. Equally lift the jacks 13 and push the bearing 200 downward to disassemble the bearing 200.
[0026] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any changes made based on the design principles of this utility model, or any non-creative changes made on this basis, shall fall within the scope of protection of this utility model.
Claims
1. A disassembly fixture for a wind turbine main shaft bearing housing, used to disassemble the bearing (200) housed within the bearing housing (100), characterized in that, It includes a tooling frame (11) whose ends are respectively connected to the bearing housing (100), and jacks (13) which are respectively arranged between the bottom outer side of the tooling frame (11) and the bearing (200); the tooling frame (11) is provided at least at both ends.
2. The disassembly fixture for the main shaft bearing housing of a wind turbine generator according to claim 1, characterized in that, The end of the tooling frame (11) is connected to the bearing seat (100) by bolts (12).
3. A disassembly fixture for the main shaft bearing housing of a wind turbine generator according to claim 1 or 2, characterized in that, A pad (14) is provided between the bottom of the jack (13) and the bearing (200).
4. A disassembly fixture for the main shaft bearing housing of a wind turbine according to claim 1 or 2, characterized in that, The tooling frame (11) is cross-shaped.