High-precision double-raceway bearing ring
By opening an inner annular groove on the inner side wall of the alloy bearing ring of the high-precision double raceway bearing ring and fitting a high-precision matching sleeve, the problem of small and difficult to add lubrication in the prior art is solved, and higher assembly accuracy and convenient lubrication are achieved, improving the maintenance convenience of bearings.
Patent Information
- Application Number
- CN202421771296.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The existing high-precision double raceway bearing rings have small gaps after assembly, making it difficult to add lubricating oil or grease easily, resulting in inconvenient maintenance.
A high-precision double raceway bearing ring is designed. By symmetrically opening the inner annular groove on the inner side wall of the alloy bearing ring, and fitting the high-precision matching sleeve in the inner annular groove, the fitting holes and through holes are opened at the inner walls of the upper and lower ends of the fitting sleeve, which facilitates the addition of lubricating oil or grease.
The assembly accuracy is improved without guaranteeing a specific gap. The design of through holes and mating holes is conveniently added, which improves the smooth rotation and maintenance of the bearing inner ring.
Smart Images
Figure CN222848551U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing components, in particular to a high-precision double-roller bearing ring. Background Art
[0002] Bearings are an important component in mechanical equipment. Their main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. At present, there are many types of bearings, including high-precision double-race bearings, which are composed of multiple bearing components, including double-race bearing rings.
[0003] The existing double-raceway bearing rings still have the following problems when in use: that is, most of the existing double-raceway bearing rings adopt a direct slotting processing structure design of the alloy bearing ring. The bearing ring matching groove needs to be opened for the assembly of the bearing inner ring and the rotation requirement after assembly, so a certain gap needs to be guaranteed, and the accuracy after assembly is general. At the same time, the bearing inner ring matching groove of the high-precision double-raceway bearing ring has a small gap after the bearing inner ring is assembled, and it is not convenient to add lubricating oil or grease to the gap, and its maintenance is relatively inconvenient. Utility Model Content
[0004] 1. Technical problems solved:
[0005] In view of the deficiencies of the prior art, the utility model provides a high-precision double-raceway bearing ring, which solves the problems raised by the background technology.
[0006] (II) Technical solution:
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-precision double-raceway bearing ring, including an outer ring body, the outer ring body including an alloy bearing ring; an external reinforcement mechanism, arranged on the outside of the alloy bearing ring, the inner side wall of the alloy bearing ring is symmetrically provided with two inner annular grooves, the inner side wall of the inner annular groove is embedded and fixedly connected with a high-precision matching sleeve, and the upper and lower ends of the opening of the high-precision matching sleeve are provided with chamfers.
[0008] As a further solution of the utility model: a group of matching holes are respectively opened on the inner side walls at the upper and lower ends of the high-precision matching sleeve, and a group of matching holes is multiple and arranged in a ring shape with equal distances. Through holes are opened on the inner side walls at the upper and lower ends of the inner annular groove corresponding to the multiple matching holes, and the through holes axially penetrate the alloy bearing ring.
[0009] As a further solution of the utility model: the external reinforcement mechanism includes a reinforcement outer ring fixedly connected to the outer periphery of the outer wall at the upper and lower ends of the alloy bearing ring, and the two reinforcement outer rings are each provided with a group of second grooves on the outer wall at one end away from each other, and a group of second grooves is multiple and arranged in a ring-shaped shape with equal angles.
[0010] As a further solution of the utility model: an outer annular groove is provided in the middle of the annular outer side wall of the alloy bearing ring, and the external reinforcement mechanism also includes a plurality of arc-shaped reinforcement patches fixedly connected to the inner wall of the outer annular groove in an annular shape with equal angles.
[0011] As a further solution of the utility model: a first groove is opened in the middle of the outer wall of each end of the plurality of arc-shaped reinforcement patches away from each other, and an arc-shaped connecting piece is fixedly connected between the side walls facing each other of each two adjacent arc-shaped reinforcement patches, and the arc-shaped connecting piece is fixedly connected to the inner wall of the outer annular groove.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. In the utility model, two inner annular grooves are symmetrically provided on the inner wall of the alloy bearing ring, and a high-precision matching sleeve is fixedly fitted in the inner annular groove. The opening of the high-precision matching sleeve is provided with a chamfer. The high-precision matching sleeve can be firstly rotated to assemble the inner ring of the bearing with high precision, and then the high-precision matching sleeve is fixedly installed in the inner annular groove after assembly. It is not necessary to ensure a certain gap in the inner annular groove, and the accuracy after assembly is good.
[0014] 2. In the utility model, a group of matching holes are respectively opened through the inner walls at the upper and lower ends of the high-precision matching sleeve, and a group of matching holes is multiple and arranged at equal angles in a ring shape. At the same time, the inner annular groove corresponds to the multiple matching holes and is provided with through holes that penetrate the outer wall of the alloy bearing ring. Lubricating oil or grease can be conveniently injected into the high-precision matching sleeve through the multiple through holes above and below through the matching holes, which is beneficial to the smooth rotation of the inner ring of the bearing assembled therein, and its maintenance is relatively convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is an overall stereogram of the utility model;
[0016] Figure 2 It is a three-dimensional diagram of the main body of the utility model;
[0017] Figure 3 It is a cutaway stereoscopic view of the main body of the utility model;
[0018] Figure 4 It is a three-dimensional diagram of the external reinforcement component of the utility model.
[0019] In the figure: 1. outer ring body; 2. external reinforcement mechanism; 11. alloy bearing ring; 12. outer annular groove; 13. inner annular groove; 14. high-precision matching sleeve; 15. through hole; 16. matching hole; 21. arc-shaped reinforcement patch; 22. first groove; 23. arc-shaped connecting piece; 24. reinforced outer ring; 25. second groove. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.
[0021] See also Figures 1 to 4 In the embodiment of the utility model, the high-precision double-raceway bearing ring comprises an outer ring body 1, and the outer ring body 1 comprises an alloy bearing ring 11; the external reinforcement mechanism 2 is arranged outside the alloy bearing ring 11, and the inner wall of the alloy bearing ring 11 is symmetrically provided with two inner annular grooves 13, and the inner wall of the inner annular groove 13 is fixedly connected with a high-precision matching sleeve 14, and the upper and lower ends of the opening of the high-precision matching sleeve 14 are provided with chamfers, and the inner wall of the alloy bearing ring 11 is symmetrically provided with two inner annular grooves 13, and the high-precision matching sleeve 14 is fixedly fixed in the inner annular groove 13, and the opening of the high-precision matching sleeve 14 is provided with chamfers, and the high-precision matching sleeve 14 can be rotated and assembled with the bearing inner ring with high precision first, and then the high-precision matching sleeve 14 can be fixedly installed in the inner annular groove 13 after assembly, and there is no need to ensure a certain gap in the inner annular groove 13, and the precision after assembly is good.
[0022] A group of matching holes 16 are respectively provided on the inner walls at both ends of the high-precision matching sleeve 14, and a group of matching holes 16 is multiple and arranged in a circular shape with equal distances. Through holes 15 are provided on the inner walls at both ends of the inner annular groove 13 corresponding to the multiple matching holes 16, and the through holes 15 axially penetrate the alloy bearing ring 11. A group of matching holes 16 are respectively provided on the inner walls at both ends of the high-precision matching sleeve 14, and a group of matching holes 16 is multiple and arranged in a circular shape with equal angles. At the same time, the inner annular groove 13 corresponds to the multiple matching holes 16 and has through holes 15 that penetrate the outer wall of the alloy bearing ring 11. Lubricating oil or grease can be conveniently added to the high-precision matching sleeve 14 through the multiple through holes 15 and the matching holes 16, which is beneficial to the smooth rotation of the inner ring of the bearing assembled therein, and its maintenance is relatively convenient.
[0023] The external reinforcement mechanism 2 includes a reinforcement outer ring 24 fixedly connected to the outer periphery of the upper and lower ends of the alloy bearing ring 11. The two reinforcement outer rings 24 are each provided with a group of second grooves 25 on the outer walls away from one end. A group of second grooves 25 is multiple and arranged in a circular shape with equal angles. The two reinforcement outer rings 24 play a role in reinforcing the upper and lower end surface structures of the alloy bearing ring 11.
[0024] An outer annular groove 12 is opened in the middle of the annular outer wall of the alloy bearing ring 11, and the external reinforcement mechanism 2 also includes a plurality of arc-shaped reinforcement patches 21 fixedly connected to the inner wall of the outer annular groove 12 in an annular shape with equal angles. The plurality of arc-shaped reinforcement patches 21 play a role in structural reinforcement of the annular surface of the alloy bearing ring 11.
[0025] A first groove 22 is provided in the middle of the outer wall of one end of the multiple arc-shaped reinforcement patches 21, and an arc-shaped connecting piece 23 is fixedly connected between the side walls facing each other of each two adjacent arc-shaped reinforcement patches 21. The arc-shaped connecting piece 23 is fixedly connected to the inner wall of the outer annular groove 12. The multiple arc-shaped connecting pieces 23 play a role in further structural reinforcement of the annular surface of the alloy bearing ring 11.
[0026] The working principle of the utility model is as follows: two inner annular grooves 13 are symmetrically provided on the inner wall of the alloy bearing ring 11, and a high-precision matching sleeve 14 is fixedly engaged in the inner annular groove 13. The opening of the high-precision matching sleeve 14 is provided with a chamfer, and the high-precision matching sleeve 14 can be first rotated and assembled with high precision into the inner ring of the bearing, and then the high-precision matching sleeve 14 is fixedly installed in the inner annular groove 13 after assembly, without ensuring a certain gap in the inner annular groove 13, and the accuracy after assembly is good. In addition, a group of matching holes 16 are respectively provided on the inner walls at the upper and lower ends of the high-precision matching sleeve 14, and a group of matching holes 16 is multiple and arranged at equal angles in an annular shape. At the same time, the inner annular groove 13 is provided with a through hole 15 that penetrates the outer wall of the alloy bearing ring 11 corresponding to the multiple matching holes 16, and lubricating oil or grease can be conveniently added to the high-precision matching sleeve 14 through the multiple through holes 15 and the matching holes 16, so that the inner ring of the bearing assembled therein can rotate smoothly, and its maintenance is more convenient.
[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A high-precision double-raceway bearing ring, comprising an outer ring body (1), wherein the outer ring body (1) comprises an alloy bearing ring (11); an external reinforcement mechanism (2) disposed outside the alloy bearing ring (11); Features: The inner wall of the alloy bearing ring (11) is provided with two inner annular grooves (13) in a vertically symmetrical shape, a high-precision matching sleeve (14) is fixedly connected to the inner wall of the inner annular groove (13), and chamfers are arranged at the upper and lower ends of the opening of the high-precision matching sleeve (14); The inner side walls at the upper and lower ends of the high-precision matching sleeve (14) are each provided with a group of matching holes (16), wherein a group of matching holes (16) is multiple and arranged in a circular shape with equal distances; Through holes (15) are provided on the inner side walls at the upper and lower ends of the inner annular groove (13) corresponding to the plurality of matching holes (16), and the through holes (15) axially penetrate the alloy bearing ring (11).
2. The high-precision double-raceway bearing ring according to claim 1, characterized in that: The external reinforcement mechanism (2) comprises a reinforcement outer ring (24) fixedly connected to the outer periphery of the outer side walls at the upper and lower ends of the alloy bearing ring (11).
3. The high-precision double-race bearing ring according to claim 2, characterized in that: A group of second grooves (25) are respectively provided on the outer side walls of the two reinforcement outer rings (24) at one end away from each other, and a group of the second grooves (25) consists of a plurality of grooves arranged in a ring shape with equal angles.
4. The high-precision double-raceway bearing ring according to claim 1, characterized in that: An outer annular groove (12) is provided in the middle of the annular outer side wall of the alloy bearing ring (11).
5. The high-precision double-race bearing ring according to claim 1, characterized in that: The external reinforcement mechanism (2) further comprises a plurality of arc-shaped reinforcement patches (21) which are fixedly connected to the inner wall of the outer annular groove (12) at equal angles in an annular shape.
6. The high-precision double-raceway bearing ring according to claim 5, characterized in that: A first groove (22) is provided in the middle of the outer side wall of each of the plurality of arc-shaped reinforcement patches (21) at one end away from each other.
7. The high-precision double-race bearing ring according to claim 5, characterized in that: An arc-shaped connecting piece (23) is fixedly connected between the side walls of each two adjacent arc-shaped reinforcing patches (21) facing each other, and the arc-shaped connecting piece (23) is fixedly connected to the inner wall of the outer annular groove (12).