A bearing cold pressing device

Abstract

This invention provides a bearing cold pressing device, including a bearing housing, a column bearing, an upper pressure plate, a pressure plate, and a long screw. One end of the column bearing is installed at the bottom of the bearing housing. A column bearing outer ring guide device is installed on the top outer ring of the bearing housing. One end of the long screw is disposed on the column bearing outer ring guide device, and the other end passes through the upper pressure plate and is locked by a nut. The pressure plate is located above the bearing housing, and a bolt passes through the upper pressure plate and is threadedly connected to the pressure plate. This invention allows the column bearing outer ring to enter the bearing housing horizontally without jamming during the entry process, and the rollers are not subjected to force.

Description

Technical Field

[0001] This utility model relates to large-scale electromechanical column bearing installation equipment, and more particularly to a bearing cold pressing device. Background Technology

[0002] Currently, the outer ring of wind turbine column bearings is mostly assembled using heat fitting or direct hammering. If the temperature of the heat fitting is uneven, it may cause the bearing to jam during assembly, while direct hammering may damage the bearing rollers.

[0003] The typical installation method for large motor column bearings is as follows: 1. After the bearing housing is machined, heat fitting is performed. Uneven heating of the bearing housing can cause jamming during the column bearing installation process. Furthermore, after installation, the bearing housing must be allowed to cool to room temperature before the end cover can be assembled, which takes a long time. 2. Directly striking the outer ring of the column bearing when it is cold. Striking the outer ring of the column bearing will cause stress on the rollers, damaging the bearing and potentially leading to abnormal bearing noise after all components are completed. The cylindrical bearing is fitted into the bearing housing with a fitting precision of only 0.02-0.03. The bearing cannot be directly placed into the bearing housing. At the same time, the rollers of the cylindrical bearing should not be subjected to force in order to protect or extend the bearing life. Summary of the Invention

[0004] To solve the above problems, the present invention discloses a bearing cold pressing device, which allows the outer ring of the cylindrical bearing to enter the bearing chamber horizontally without jamming during the entry process, and the rollers are not subjected to force.

[0005] A bearing cold pressing device includes a bearing housing, a column bearing, an upper pressure plate, a pressure plate, and a long screw; one end of the column bearing is installed at the bottom of the bearing housing; a column bearing outer ring guide device is installed on the top outer ring of the bearing housing; one end of the long screw is disposed on the column bearing outer ring guide device and the other end passes through the upper pressure plate and is locked by a nut; the pressure plate is located above the bearing housing, and a bolt passes through the upper pressure plate and is threadedly connected to the pressure plate.

[0006] Furthermore, a pad is installed at the bottom of the bearing housing to ensure that the column bearing remains horizontal with the bottom of the bearing housing after it is fully inserted into the bearing housing.

[0007] Furthermore, the outer ring guide device of the column bearing is a circular positioning plate.

[0008] Furthermore, one end of the long screw passes through the outer ring guide device of the column bearing and is locked onto the bearing housing.

[0009] Furthermore, the upper pressure plate is designed as a universal structure according to the bearing chamber hole position. The upper pressure plate can be designed as a universal structure according to the outer diameter of various bearings. Disassembly can be done with a set of tooling without investing a large amount of money.

[0010] The working principle of this utility model is as follows: by setting a pad, the column bearing is fully inserted into the bearing chamber and kept horizontal with the bottom of the bearing chamber; the outer ring guide device of the column bearing ensures that the outer ring of the column bearing is horizontal and without tilting when entering the bearing chamber; after applying torque to the bolt, the pressure plate is pressed down, so that the bearing enters the bearing chamber. When tightening, the pressure plate contacts the circular surface of the outer ring of the bearing, which can make the bearing evenly stressed; the upper pressure plate is kept horizontal and coaxial with the column bearing by the installation and cooperation of the long screw and nut, which improves stability.

[0011] The beneficial effects of this utility model are: 1. The bearing enters the bearing housing in a horizontal position and will not tilt during the process; 2. The rollers will not be subjected to force, the bearings will not be damaged, and no abnormal noise will occur during rotation.

[0012] 3. This device can also be used for bearing disassembly, without the need for new investment. Attached Figure Description

[0013] Figure 1 A schematic diagram of the structure of this utility model; Figure 2 Top view of the main bearing outer ring guide device; Figure 3 , Figure 2 Cross-sectional view along the AA direction.

[0014] List of reference numerals in the attached diagram: 1-Push plate; 2-Column bearing outer ring guide device; 3-Pressure plate; 4-Upper pressure plate; 5-Long screw; 6-Nut; 7-Bolt; 8-Bearing housing; 9-Main bearing. Detailed Implementation

[0015] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0016] like Figure 1-3 As shown, a bearing cold pressing device of this embodiment includes a bearing chamber 8, a column bearing 9, an upper pressure plate 4, a pressure plate 3, and a long screw 5; wherein one end of the column bearing 9 is installed at the bottom of the bearing chamber 8; a pad 1 is installed at the bottom of the bearing chamber; the pad 1 is set so that the column bearing 9 is fully inserted into the bearing chamber and remains horizontal with the bottom of the bearing chamber.

[0017] The bearing housing 8 has a column bearing outer ring guide device 2 installed on its top outer ring; one end of the long screw 5 is mounted on the column bearing outer ring guide device 2 and the other end passes through the upper pressure plate 4 and is locked by the nut 6. The long screw 5 passes through the column bearing outer ring guide device 2 and is locked onto the bearing housing 8. The column bearing outer ring guide device 2 is a circular positioning plate.

[0018] The pressure plate 3 is located above the bearing chamber 8, with bolts 7 passing through the upper pressure plate 4 and threadedly connected to the pressure plate 3. After applying torque to the bolts, the pressure plate is pressed downwards, allowing the bearing to enter the bearing chamber. During tightening, the pressure plate contacts the outer ring surface of the bearing, ensuring even force distribution on the bearing. The upper pressure plate is kept horizontal and coaxial with the column bearing through the installation and fit of the long screw and nut, improving stability.

[0019] This embodiment is applicable to the assembly of various types of bearings. The outer ring guide device of the column bearing can make the bearing enter the bearing chamber in a horizontal state. The structure is simple, practical and lightweight. The upper pressure plate can be designed as a universal structure according to the bearing chamber hole position. The upper pressure plate can be designed as a universal structure according to the outer diameter of various bearings. Disassembly can be done with a set of tooling without investing a lot of money.

[0020] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A bearing cold-pressing apparatus, characterized by: It includes a bearing housing (8), a column bearing (9), an upper pressure plate (4), a pressure plate (3), and a long screw (5); one end of the column bearing (9) is installed at the bottom of the bearing housing (8); the outer ring of the bearing housing (8) is equipped with a column bearing outer ring guide device (2); one end of the long screw (5) is set on the column bearing outer ring guide device (2) and the other end passes through the upper pressure plate (4) and is locked by a nut (6); the pressure plate (3) is located above the bearing housing (8); and a bolt (7) passes through the upper pressure plate (4) and is threadedly connected to the pressure plate (3).

2. A bearing cold press apparatus as claimed in claim 1, wherein: A pad (1) is installed at the bottom of the bearing chamber.

3. The bearing cold pressing device according to claim 1, characterized in that: The outer ring guide device (2) of the column bearing is a circular positioning plate.

4. The apparatus of claim 1, wherein: One end of the long screw (5) passes through the outer ring guide device (2) of the column bearing and is locked onto the bearing chamber (8).

5. The apparatus of claim 1, wherein: The upper pressure plate is designed as a universal structure according to the hole position of the bearing chamber (8).

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