Bearing ring with external diameter key groove

Abstract

The utility model discloses a bearing ring with an outer diameter key groove, and relates to the field of bearing devices. The bearing ring with the outer diameter key groove comprises a bearing ring main body, and the bearing ring main body comprises an inner ring and an outer ring; the outer sleeve is connected to the outer peripheral wall of the inner sleeve ring in a sleeving mode, a first circular key groove is formed in the outer peripheral wall of the inner sleeve ring, an outer arc chamfer is arranged on the side wall of the first circular key groove, a second circular key groove is formed in the inner wall of the outer sleeve ring, an inner arc chamfer is arranged on the inner side of the second circular key groove, and an outer diameter groove is formed in the outer peripheral wall of the outer sleeve ring. According to the bearing ring with the outer diameter key grooves, the outer arc chamfers and the inner arc chamfers are arranged on the inner ring and the outer ring, the adaptation degree of the bearing ring and the shape of a rolling body can be improved, the rotating speed of the rolling body is increased, meanwhile, lubricating grease films are arranged on the surfaces of the first circular key groove and the second circular key groove, the lubricating degree of the rolling body in the rotating process can be increased, and the service life of the bearing ring is prolonged. The rotating speed and the service life of the rolling body are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a bearing ring with an outer diameter keyway. Background Art

[0002] The bearing ring is an annular part of a radial rolling bearing with one or more raceways. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. The bearing sleeve can also ensure that the bearing maintains stable support during operation to avoid deviation or vibration.

[0003] The existing cylindrical bearings are prone to friction and wear with the bearing rings after long-term use, resulting in deformation, which makes the bearing rings loose and causes the bearings to run idle.

[0004] The reason for this problem is that the shapes of the rotating bodies rolling in the bearings are different. Most of them are spheres or cylinders. Since the edges of the cylinders are relatively sharp, they are prone to friction and wear with the bearing rings after long-term use and operation, resulting in deformation, which makes the bearing rings and the rotating bodies loose, causing the bearings to run idle. In view of the shortcomings of the existing technology, we propose a bearing ring with an outer diameter keyway to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a bearing ring with an outer diameter keyway, which solves the problem that after long-term use, cylindrical bearings are prone to friction and wear with the bearing ring, resulting in deformation, looseness between the bearing ring and the rotating body, and causing the bearing to idle.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a bearing ring with an outer diameter keyway, comprising a bearing ring body, wherein the bearing ring body comprises an inner ring and an outer ring;

[0007] The outer ring is sleeved on the outer circumferential wall of the inner ring, the outer circumferential wall of the inner ring is provided with a first circular keyway, the side wall of the first circular keyway is provided with an outer arc chamfer, the inner wall of the outer ring is provided with a second circular keyway, the inner side of the second circular keyway is provided with an inner arc chamfer, and the outer circumferential wall of the outer ring is provided with an outer diameter groove.

[0008] Preferably, the first circular keyway has the same width as the second circular keyway.

[0009] Preferably, the arc angles of the outer arc chamfer and the inner arc chamfer are the same.

[0010] Preferably, the surfaces of the first circular keyway and the second circular keyway are both provided with a grease film.

[0011] Preferably, both sides of the outer diameter groove are arc-shaped chamfers.

[0012] Preferably, the side wall of the outer ring is provided with a plurality of groups of screw holes, and the plurality of groups of screw holes are evenly distributed on the side wall of the outer ring.

[0013] Preferably, a slot is provided at the end of the screw hole, and the slot is used to fix the screw.

[0014] Preferably, a sealing ring is fixedly connected to the outer side of the card slot, and the sealing ring is used to seal the card slot and the screw.

[0015] The utility model discloses a bearing ring with an outer diameter keyway, which has the following beneficial effects: the bearing ring with an outer diameter keyway can improve the adaptability to the shape of a rolling body and the rotation speed of the rolling body by arranging an inner arc chamfer at a second circular keyway on an outer ring and an outer arc chamfer at a first circular keyway on an inner ring, and at the same time, a grease film is arranged on the surface of the first circular keyway and the second circular keyway, and a lubricating oil film is arranged on the surface of the arc groove on both sides of the connecting frame, which can increase the lubrication of the rolling body when it rotates, reduce the friction and wear between the rolling body and the bearing ring and the connecting frame when it rotates, and improve the rotation speed and service life of the rolling body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of the bearing ring body of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the outer ring and the inner ring of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the outer sleeve of the utility model.

[0020] In the figure: 1. bearing ring body; 101. inner ring; 1011. first circular keyway; 1012. outer arc chamfer; 102. outer ring; 1021. second circular keyway; 1022. inner arc chamfer; 1023. outer diameter groove; 1024. arc chamfer; 1025. slot; 1026. sealing ring; 1027. screw hole; 103. grease film. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The embodiment of the present application solves the problem that after long-term use, cylindrical bearings are prone to friction and wear with the bearing rings, resulting in deformation, looseness between the bearing rings and the rotating body, and causing the bearings to run idle by providing a bearing ring with an outer diameter keyway.

[0023] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] The utility model embodiment discloses a bearing ring with an outer diameter keyway.

[0025] According to the attached Figure 1-3 As shown, a bearing ring with an outer diameter keyway comprises a bearing ring body, wherein the bearing ring body 1 comprises an inner ring 101 and an outer ring 102;

[0026] The outer ring 102 is sleeved on the outer circumferential wall of the inner ring 101. The outer circumferential wall of the inner ring 101 is provided with a first circular keyway 1011. The side wall of the first circular keyway 1011 is provided with an outer arc chamfer 1012. The inner wall of the outer ring 102 is provided with a second circular keyway 1021. The inner side of the second circular keyway 1021 is provided with an inner arc chamfer 1022. The outer circumferential wall of the outer ring 102 is provided with an outer diameter groove 1023. By providing the inner arc chamfer 1022 at the second circular keyway 1021 on the outer ring 102 and the outer arc chamfer 1012 at the first circular keyway 1011 on the inner ring 101, the adaptability to the shape of the rolling body can be improved and the rotation speed of the rolling body can be increased.

[0027] The first circular key groove 1011 and the second circular key groove 1021 have the same width.

[0028] The arc angles of the outer chamfer 1012 and the inner chamfer 1022 are the same.

[0029] The surfaces of the first circular keyway 1011 and the second circular keyway 1021 are both provided with a grease film 103. The grease film 103 can increase the lubrication between the rolling body and the first circular keyway 1011 and the second circular keyway 1021, and can reduce the friction and wear between the rolling body and the first circular keyway 1011 and the second circular keyway 1021 when the rolling body rotates, thereby improving the rotation speed and service life of the rolling body.

[0030] Both sides of the outer diameter groove 1023 are arc chamfers 1024 . By providing the outer diameter groove 1023 on the outer peripheral wall of the outer ring 102 , the outer ring 102 can be clamped and stopped, so that the inner ring 101 can be easily disassembled and assembled.

[0031] The side wall of the outer ring 102 is provided with a plurality of screw holes 1027 , which are evenly distributed on the side wall of the outer ring 102 . The outer ring 102 can be further fixed by threading screws inside the screw holes 1027 .

[0032] A slot 1025 is provided at the end of the screw hole 1027, and the slot 1025 is used to fix the screw. The screw can be rotated and retracted in the slot 1025 so that the screw does not protrude from the side wall of the outer ring 102, which can not only increase its aesthetics, but also avoid the protruding screw hole 1027 affecting the installation of other parts.

[0033] A sealing ring 1026 is fixedly connected to the outer side of the slot 1025, and the sealing ring 1026 is used to seal the slot 1025 and the screw. The sealing ring 1026 can increase the sealing performance between the screw and the screw hole 1027, thereby preventing part of the grease film 103 from easily penetrating into the screw hole 1027 when the bearing is in use.

[0034] When the utility model is in use, the rolling body is first pressed into the first circular keyway 1011 on the inner ring 101 by a press machine, and then the outer ring 102 is fixed to the press machine by screws, and the inner ring 101 together with the rolling body is pressed into the second circular keyway 1021 of the outer ring 102. At this time, the bearing is successfully assembled, and then the bearing can be installed on the required equipment.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A bearing ring with an outer diameter keyway, comprising a bearing ring body (1), characterized in that: The bearing ring body (1) comprises an inner ring (101) and an outer ring (102); The outer ring (102) is sleeved on the outer circumferential wall of the inner ring (101); the outer circumferential wall of the inner ring (101) is provided with a first circular keyway (1011); the side wall of the first circular keyway (1011) is provided with an outer arc chamfer (1012); the inner wall of the outer ring (102) is provided with a second circular keyway (1021); the inner side of the second circular keyway (1021) is provided with an inner arc chamfer (1022); and the outer circumferential wall of the outer ring (102) is provided with an outer diameter groove (1023).

2. A bearing ring with an outer diameter keyway according to claim 1, characterized in that: The first circular key groove (1011) and the second circular key groove (1021) have the same width.

3. The bearing ring with an outer diameter keyway according to claim 1, characterized in that: The arc angles of the outer arc chamfer (1012) and the inner arc chamfer (1022) are the same.

4. The bearing ring with an outer diameter keyway according to claim 1, characterized in that: The surfaces of the first circular keyway (1011) and the second circular keyway (1021) are both provided with a lubricating grease film (103).

5. The bearing ring with an outer diameter keyway according to claim 1, characterized in that: Both sides of the outer diameter groove (1023) are arc-shaped chamfers (1024).

6. The bearing ring with an outer diameter keyway according to claim 1, characterized in that: The side wall of the outer ring (102) is provided with a plurality of groups of screw holes (1027), and the plurality of groups of screw holes (1027) are evenly distributed on the side wall of the outer ring (102).

7. A bearing ring with an outer diameter keyway according to claim 6, characterized in that: A clamping groove (1025) is provided at the end of the screw hole (1027), and the clamping groove (1025) is used to fix the screw.

8. The bearing ring with an outer diameter keyway according to claim 7, characterized in that: A sealing ring (1026) is fixedly connected to the outer side of the card slot (1025), and the sealing ring (1026) is used to seal the card slot (1025) and the screw.

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