Device for measuring height difference between inner oil seal end face and outer oil seal end face of sealed bearing

Abstract

The utility model provides sealing bearing inner oil seal end face and outer oil seal end face height difference measuring device, including base plate, table frame, pillar, indicating meter, base plate removes setting in the end face of inner ring of sealing bearing, the pillar is connected in base plate far from the side of inner ring perpendicularly, indicating meter is connected in the pillar through table frame sliding, the axis of indicating meter's measuring rod is perpendicular to the end face of inner ring, and indicating meter's measuring head contacts in inner oil seal end face or outer oil seal end face, can realize sealing bearing's inner oil seal end face and outer oil seal end face height difference's measurement, both convenient and fast, can also accurately measure the height difference value between both, satisfy the quality requirement of customer to sealing bearing.

Description

Technical Field

[0001] This utility model belongs to the field of sealed bearing technology, and in particular to a device for measuring the height difference between the inner oil seal end face and the outer oil seal end face of a sealed bearing. Background Technology

[0002] Sealed bearings are primarily used in highly polluted environments (such as mining machinery and construction equipment) and applications requiring long-term maintenance-free operation (such as wind turbine main shafts and rail transit equipment). These bearings are pre-filled with grease at the factory and employ a combination of internal and external oil seals to prevent lubricant leakage or contamination, effectively isolating them from dust, moisture, and chemical contaminants. Their structure mainly consists of an outer ring, inner ring, rolling elements, cage, external oil seal, and internal oil seal.

[0003] The design requirements for sealed bearings stipulate that after the bearing is press-fitted, the inner oil seal end face should be lower than the outer oil seal end face, and a maximum allowable value for this lower value is specified. However, since the outer oil seal is formed by pressing rubber material into a low-carbon cold-rolled steel plate, the rubber material on the oil seal will undergo elastic deformation when measured with depth calipers, making it impossible to accurately detect the height difference between the inner and outer oil seal end faces.

[0004] The original method for measuring the height difference between the inner and outer oil seal end faces of a sealed bearing was to use a depth caliper. However, since the oil seal structure is made by pressing rubber into a low-carbon cold-rolled steel plate, elastic deformation will occur when using a depth caliper, making it impossible to accurately detect the height difference between the inner and outer oil seal end faces. Utility Model Content

[0005] In view of the above problems, the purpose of this application is to provide a device for measuring the height difference between the inner oil seal end face and the outer oil seal end face of a sealed bearing, so as to realize the measurement of the height difference between the inner oil seal end face and the outer oil seal end face of the sealed bearing. This device is convenient, quick, and accurate in measuring the height difference between the two, thus meeting the customer's quality requirements for sealed bearings.

[0006] To achieve some or all of the above objectives or other objectives, this application provides the following technical solution: a height difference measuring device for the inner oil seal end face and the outer oil seal end face of a sealed bearing, comprising a base plate, a support frame, a support column, and an indicator; the base plate is movably disposed on the end face of the inner ring of the sealed bearing, the support column is vertically connected to the side of the base plate away from the inner ring, the indicator is slidably connected to the support column through the support frame, the axis of the measuring rod of the indicator is perpendicular to the end face of the inner ring, and the measuring head of the indicator contacts the inner oil seal end face or the outer oil seal end face.

[0007] Furthermore, it also includes fastening screws and hexagonal socket head cap screws, the indicator being connected to the indicator frame by fastening screws, and the support being connected to the indicator frame by hexagonal socket head cap screws.

[0008] Furthermore, the substrate is provided with a positioning surface that matches the end face of the inner ring of the sealed bearing.

[0009] Furthermore, the height of the support column is adjustable to accommodate sealed bearings of different specifications.

[0010] Furthermore, the indicator is a lever dial gauge or a lever per mille gauge.

[0011] Furthermore, the frame is slidably connected to the support column.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this measuring device eliminates the elastic deformation of the rubber material of the oil seal during measurement, realizes the accurate measurement of the height difference between the inner oil seal end face and the outer oil seal end face of the sealed bearing, and ensures the processing quality of the bearing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A magnified view of a portion of the image; Figure 3 This is a top view of the present invention; Figure 4 for Figure 3 A magnified view of a portion of the image; In the diagram: 1. Base plate, 2. Frame, 3. Support, 4. Indicator, 5. Fastening screw, 6. Socket head screw, 7. Inner oil seal end face, 8. Outer oil seal end face, 9. Sealed bearing, 10. Inner ring. Detailed Implementation

[0014] To make the structure and function of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0015] See appendix Figure 1-4 A height difference measuring device for the inner and outer oil seal end faces of a sealed bearing includes a base plate 1, a gauge frame 2, a support column 3, and an indicator 4. The base plate 1 is movably disposed on the end face of the inner ring 10 of the sealed bearing 9. The support column 3 is vertically connected to the side of the base plate 1 away from the inner ring 10. The indicator 4 is slidably connected to the support column 3 through the gauge frame 2. The axis of the measuring rod of the indicator 4 is perpendicular to the end face of the inner ring 10. The measuring head of the indicator 4 contacts the inner oil seal end face 7 or the outer oil seal end face 8.

[0016] It also includes fastening screws 5 and cylindrical head socket screws 6. The indicator 4 is connected to the indicator frame 2 by fastening screws 5, and the support column 3 is connected to the indicator frame 2 by cylindrical head socket screws 6.

[0017] The substrate 1 is provided with a positioning surface that matches the end face of the inner ring 10 of the sealed bearing 9.

[0018] The height of the support column 3 is adjustable to accommodate sealed bearings 9 of different specifications.

[0019] The indicator table 4 is a lever percentage gauge or a lever per mille gauge.

[0020] The frame 2 is slidably connected to the support column 3.

[0021] During measurement, place the substrate 1 on the end face of the inner ring 10 of the sealed bearing 9, with the measuring head of the indicator 4 located in the middle of the inner oil seal end face 7, and adjust the pointer of the indicator 4 to the "0" position; then push the substrate 1 to the left until the measuring head of the indicator 4 contacts the outer oil seal end face 8. At this time, the reading of the indicator 4 is the height difference between the inner oil seal end face 7 and the outer oil seal end face 8.

[0022] This measuring device eliminates the elastic deformation of the rubber material of the oil seal during measurement, enabling precise measurement of the height difference between the inner and outer oil seal end faces of the sealed bearing, thus ensuring the processing quality of the bearing.

[0023] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.

Claims

1. A device for measuring the height difference between the inner oil seal end face and the outer oil seal end face of a sealed bearing, characterized in that: It includes a base plate (1), a frame (2), a support (3), and an indicator (4); the base plate (1) is movably disposed on the end face of the inner ring (10) of the sealed bearing (9), the support (3) is vertically connected to the side of the base plate (1) away from the inner ring (10), the indicator (4) is slidably connected to the support (3) through the frame (2), the axis of the measuring rod of the indicator (4) is perpendicular to the end face of the inner ring (10), and the measuring head of the indicator (4) contacts the inner oil seal end face (7) or the outer oil seal end face (8).

2. The height difference measuring device between the inner oil seal end face and the outer oil seal end face of the sealed bearing according to claim 1, characterized in that: It also includes fastening screws (5) and cylindrical head socket screws (6), the indicator (4) is connected to the indicator frame (2) by fastening screws (5), and the support (3) is connected to the indicator frame (2) by cylindrical head socket screws (6).

3. The height difference measuring device between the inner oil seal end face and the outer oil seal end face of the sealed bearing according to claim 1, characterized in that: The substrate (1) has a positioning surface that matches the end face of the inner ring (10) of the sealed bearing (9).

4. The height difference measuring device between the inner oil seal end face and the outer oil seal end face of the sealed bearing according to claim 1, characterized in that: The height of the support (3) is adjustable to accommodate sealed bearings (9) of different specifications.

5. The height difference measuring device between the inner oil seal end face and the outer oil seal end face of the sealed bearing according to claim 1, characterized in that: The indicator (4) is a lever dial indicator or a lever per mille indicator.

6. The height difference measuring device between the inner oil seal end face and the outer oil seal end face of the sealed bearing according to claim 1, characterized in that: The frame (2) is slidably connected to the support (3).

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