Flange bearing

Abstract

The utility model discloses a flange bearing relates to bearing field, and its technical scheme main points are: including the flange plate of outer ring and integral molding with outer ring, is set up with a first positioning hole and a plurality of second positioning holes and a plurality of third positioning holes on the flange plate, and the first positioning hole and the second positioning hole constitute an equal interval circumferential array with the axis of flange plate as the shaft, and the oil injection hole is set up on the outside wall of outer ring and penetrates, and the oil injection hole is located between the first positioning hole and the second positioning hole adjacent with the first positioning hole, and a plurality of third positioning holes constitute an equal interval circumferential array with the axis of flange plate as the shaft. The utility model guarantees the position accuracy of first positioning hole through the diameter difference between first positioning hole and second positioning hole, and the position of oil injection hole corresponds relative to the position of first positioning hole, guarantees the position accuracy of oil injection hole.

Description

Technical Field

[0001] This utility model relates to the field of bearings, and more specifically, to a flange bearing. Background Technology

[0002] In the field of mechanical transmission, flange bearings, as a common support component, are widely used for fixing shaft systems in various rotating equipment. Traditional flange bearings typically consist of an inner ring, outer ring, rolling elements, and a cage. Their flanges have evenly distributed mounting holes, and they are fixed to the equipment base using mounting bolts. To ensure the long-term reliability of the bearing, manufacturers usually provide grease holes on the flange or outer ring for periodic grease replenishment via a lubricator. While this design theoretically meets the bearing's lubrication requirements, in actual installation and maintenance, because the mounting holes of flange bearings are circumferentially symmetrical, the position of the grease holes is random during installation. If installers are negligent, the grease hole can easily be located in the lower half of the bearing, making grease replenishment difficult. Since the outer ring of the flange bearing is fixed by mounting bolts, the grease hole cannot be rotated back to the upper half, necessitating disassembly and reinstallation. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a flange bearing.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a flange bearing, comprising an outer ring and a flange integrally formed with the outer ring, wherein the flange has a first positioning hole, a plurality of second positioning holes, and a plurality of third positioning holes, the first positioning hole and the second positioning holes forming an equally spaced circular array with the axis of the flange as the axis, the diameter of the first positioning hole being larger than the diameter of the second positioning hole, an oil injection hole being provided through the outer side wall of the outer ring, the oil injection hole being located between the first positioning hole and the second positioning hole adjacent to the first positioning hole, and the plurality of third positioning holes forming an equally spaced circular array with the axis of the flange as the axis, the number of the third positioning holes being equal to the sum of the number of the second positioning holes and the number of the first positioning holes.

[0005] The present invention is further configured such that: an outer ring is integrally formed on the outer side wall of the outer ring, the outer ring surrounds the oil injection hole, and the outer ring floats on the surface of the outer ring.

[0006] The present invention is further configured such that: the inner ring at one end of the ring facing away from the outer ring is provided with a chamfer for guiding the oil injector.

[0007] The present invention is further configured such that: an oil plug is detachably connected to the oil injection hole in a sliding manner, and a sealing cap is fixedly connected to one end of the oil plug located outside the oil injection hole, and the sealing cap is sleeved on the outside of the ring.

[0008] The present invention is further configured such that: a lever is fixedly connected to the side of the sealing cap facing away from the oil plug, and the end of the lever away from the sealing cap is provided with anti-slip texture.

[0009] The present invention is further configured such that: a plurality of grooves are provided on the flange, the number of grooves being the same as the number of third positioning holes, and the grooves passing through the corresponding third positioning holes.

[0010] In summary, the present invention has the following beneficial effects: the diameter difference between the first positioning hole and the second positioning hole ensures the accurate position of the first positioning hole, and the position of the oil injection hole corresponds to the position of the first positioning hole, thus ensuring the accurate position of the oil injection hole. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0013] In the diagram: 1. Outer ring; 2. Flange; 3. First positioning hole; 4. Second positioning hole; 5. Third positioning hole; 6. Oil filling hole; 7. Ring; 8. Oil plug; 9. Sealing cap; 10. Pull rod; 11. Score. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0015] Example: A flange bearing, such as Figure 1As shown, the flange 2, integrally formed with the outer ring 1, has three sets of mounting holes with different functions: the first positioning hole 3 has an enlarged diameter design, 1.5-2mm larger than the diameter of the second positioning hole 4, and the two together form a positioning and mounting system; the third positioning hole 5 forms another independent backup positioning and mounting system, the number of which is equal to the sum of the first two sets of positioning holes. During processing, the second positioning hole 4 (one more than the original number) and the third positioning hole 5 (the normal number) are first machined, and then the corresponding second positioning hole 4 is enlarged to form the first positioning hole 3. In this embodiment, the number of first positioning holes 3 is one, the number of second positioning holes 4 is two, and the number of third positioning holes 5 is three. The oil injection hole 6 is located on the outer wall of the outer ring 1, in the middle position between the first positioning hole 3 and the adjacent second positioning hole 4. This layout ensures that when the first positioning hole 3 is used as the installation reference, the oil injection hole 6 is necessarily located in the upper half of the outer ring 1 in a suitable lubrication position. The mounting bolts that mate with the first positioning hole 3 cannot be fitted with the second positioning hole 4, thus preventing incorrect installation. Meanwhile, for equipment bases that cannot be matched with the first positioning hole 3, a backup positioning installation system consisting of the third positioning hole 5 can be selected, ensuring the universality of this flange bearing.

[0016] The outer ring 1 has an integrally formed outer wall with a ring 7 surrounding the oil injection hole 6. The ring 7 allows for easy tactile judgment of the oil injection hole 6's location, even when direct observation is difficult. The inner diameter of the ring 7 is equal to the diameter of the oil injection hole 6, and the inner edge of the ring 7 is chamfered at 30° to guide the oil injection nozzle for accurate alignment. A slidable and removable oil plug 8 is installed inside the oil injection hole 6. The outer end of the oil plug 8 is connected to a sealing cap 9, whose inner diameter and outer diameter are press-fitted to achieve a seal. A pull rod 10 is welded to the outside of the sealing cap 9, and the surface of the pull rod 10 is annularly cut with anti-slip texture to enhance operating friction. Radial markings 11 on the surface of the flange 2 pass through the center of each third positioning hole 5, making the third positioning hole 5 visually and tactilely distinct from the second positioning hole 4, preventing misuse. These markings 11 are laser-engraved to a depth of 0.1-0.2mm, ensuring clear visibility without compromising structural strength.

[0017] During installation, the operator first identifies the first positioning hole 3 and aligns it with the positioning point on the equipment base. At this time, the oil injection hole 6 automatically lies in the ideal lubrication range of 45°-90° on the upper half of the bearing. When the base is not a matching base and the first positioning hole 3 cannot be used, the third positioning hole 5, which is closest to the first positioning hole 3, can be selected as the installation reference, which will also ensure that the oil injection hole 6 is in a usable position. In actual lubrication operation, simply hold and pull out the pull rod 10 to remove the sealing cover 9, and the oil gun is inserted along the chamfer of the ring 7. After lubrication, reseal the device.

[0018] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A flange bearing, characterized in that: The flange (2) includes an outer ring (1) and a flange (2) integrally formed with the outer ring (1). The flange (2) has a first positioning hole (3), several second positioning holes (4), and several third positioning holes (5). The first positioning hole (3) and the second positioning holes (4) together form an equally spaced circular array with the axis of the flange (2) as the axis. The diameter of the first positioning hole (3) is larger than the diameter of the second positioning hole (4). An oil injection hole (6) is provided through the outer wall of the outer ring (1). The oil injection hole (6) is located between the first positioning hole (3) and the second positioning hole (4) adjacent to the first positioning hole (3). Several third positioning holes (5) together form an equally spaced circular array with the axis of the flange (2) as the axis. The number of third positioning holes (5) is equal to the sum of the number of second positioning holes (4) and the number of first positioning holes (3).

2. The flange bearing according to claim 1, characterized in that: An integral ring (7) is formed on the outer side wall of the outer ring (1), the ring (7) surrounds the oil injection hole (6), and the ring (7) floats on the surface of the outer ring (1).

3. The flange bearing according to claim 2, characterized in that: The inner ring of the ring (7) facing away from the outer ring (1) has a chamfer for guiding the oil injector.

4. The flange bearing according to claim 2, characterized in that: An oil plug (8) is detachably connected to the oil injection hole (6) in a sliding manner. A sealing cap (9) is fixedly connected to one end of the oil plug (8) outside the oil injection hole (6). The sealing cap (9) is sleeved on the outside of the ring (7).

5. The flange bearing according to claim 4, characterized in that: The sealing cap (9) is fixedly connected to a lever (10) on the side facing away from the oil plug (8), and the end of the lever (10) away from the sealing cap is provided with anti-slip texture.

6. The flange bearing according to claim 1, characterized in that: The flange (2) has several grooves (11) and the number of grooves (11) is the same as the number of third positioning holes (5). The grooves (11) pass through the corresponding third positioning holes (5).

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