Self-aligning shaft positioning roller bearing

Abstract

The utility model relates to the technical field of bearings, and discloses a self-aligning shaft positioning roller bearing which comprises an inner ring, an outer spherical outer ring, an inner spherical outer ring, a plurality of cylindrical rollers and a retainer. The bearing has the biggest advantages of being small in running resistance, energy-saving and labor-saving. The bearing has a self-aligning function and can replace most existing self-aligning rolling bearings. If the spherical surface structure is abandoned, only one outer ring is used, other parts are kept unchanged, and the bearing becomes a pure centripetal cylindrical roller bearing and has high universality.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to an improvement on the structure of a rolling bearing with a retaining frame. Background Art

[0002] The balls of the rolling bearings currently used are mostly spherical and cylindrical and are positioned by a cage. The disadvantage is that when the bearing rotates, the resistance generated by the contact between the cage and the balls is large, the energy consumption is large, the bearing is easy to wear, and the service life is short. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a self-aligning shaft positioning roller bearing which makes full use of rolling friction, reduces sliding friction, adopts the center concave hole of the cylindrical roller and the shaft head on the cage for positioning, reduces the resistance of sliding friction to the minimum, and consumes little energy. The cage and the cylindrical roller have good stability after being combined, the cylindrical roller will not fall or move, the cage is not easy to wear and deform, is easy to install and disassemble, and can extend the service life.

[0004] The technical solution adopted by the utility model is:

[0005] A self-aligning shaft positioning roller bearing comprises an inner ring, an outer spherical outer ring, an inner spherical outer ring, a plurality of cylindrical rollers, and a retaining frame, wherein the plurality of cylindrical rollers have stops at both ends, a central concave hole is arranged at the center of the two end surfaces of the plurality of cylindrical rollers, one end of the shaft head is inserted into the central concave hole, an inner ring stop surface is arranged on the outer wall of one end of the inner ring at a position matching with the stops at the ends of the plurality of cylindrical rollers, and an inner ring groove is arranged on the outer wall of the other end of the inner ring; an outer ring stop surface is arranged on the inner wall of one end of the outer spherical outer ring matching with the stops at the ends of the plurality of cylindrical rollers, and an outer ring groove is arranged at the other end of the outer spherical outer ring; the retaining frame is composed of two ring-shaped sheets and a plurality of The invention is composed of a connecting column and a plurality of shaft heads, the two ring-shaped sheets are arranged in parallel, and the plurality of connecting columns are fixedly arranged between the two ring-shaped sheets according to the set positions, and shaft heads are respectively arranged on the corresponding inner sides of the two ring-shaped sheets and between every two connecting columns, and the plurality of connecting columns are provided with connecting holes, and long rod rivets are fixed in the connecting holes; the plurality of cylindrical rollers are respectively installed between the two ring-shaped sheets, the inner spherical outer ring and the outer spherical outer ring match each other, and are sleeved on the outer end surfaces of the plurality of cylindrical rollers, the inner ring is installed on the inner side of the plurality of cylindrical rollers, and the baffles at both ends of the plurality of cylindrical rollers are in contact with the inner ring baffle surface and the outer ring baffle surface respectively.

[0006] When the utility model is used, attention should be paid to the installation direction. The inner ring groove and the outer ring groove are not on the same side. When installed and used, two bearings on one shaft should be installed symmetrically.

[0007] This bearing has a self-aligning function and can replace most existing self-aligning rolling bearings. If the spherical structure is discarded and only a single outer ring is used, and other parts remain unchanged, it will become a pure radial cylindrical roller bearing and can replace most existing radial rolling bearings, with strong versatility. The biggest advantage of this bearing is that it has low running resistance and saves energy and labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0009] Figure 2 It is a schematic diagram of the combination of a cage and multiple cylindrical rollers;

[0010] Figure 3 It is a schematic diagram of the position of cylindrical rollers and part of the cage. DETAILED DESCRIPTION

[0011] 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.

[0012] Reference Figure 1-Figure 3The utility model provides a self-aligning shaft positioning roller bearing, comprising an inner ring 1, an outer spherical outer ring 2 and an inner spherical outer ring 16, a plurality of cylindrical rollers 3 and a retaining frame 4 as one body, a total of three parts. The plurality of cylindrical rollers 3 have stops 5 at both ends, respectively, and a central concave hole 6 is provided at the center of the two end surfaces of the plurality of cylindrical rollers 3, and one end of the shaft head 7 is inserted into the central concave hole 6. An inner ring stop surface 8 is provided on the outer wall of one end of the inner ring 1 at a location matching the stops 5 at the ends of the plurality of cylindrical rollers 3, and an inner ring groove 9 is provided on the outer wall of the other end of the inner ring 1. An outer ring stop surface 10 matching the stops 5 at the ends of the plurality of cylindrical rollers 3 is provided on the inner wall of one end of the outer spherical outer ring 2, and an outer ring groove 11 is provided at the other end of the outer spherical outer ring 2, so as to facilitate the installation of the bearing. The cage 4 is composed of two ring-shaped pieces 12, a plurality of connecting posts 13 and a plurality of shaft heads 7. The two ring-shaped pieces 12 are arranged in parallel, and the plurality of connecting posts 13 are fixedly arranged between the two ring-shaped pieces 12 at set positions. A shaft head 7 is arranged on the corresponding inner sides of the two ring-shaped pieces 12 and between every two connecting posts 13. A connecting hole 14 is arranged in the plurality of connecting posts 13, and a long rod rivet 15 is fixed in the connecting hole 14. A plurality of cylindrical rollers 3 are respectively installed between the two ring-shaped pieces 12, the inner spherical outer ring 16 matches the outer spherical outer ring 2 and is sleeved on the outer end faces of the plurality of cylindrical rollers 3, the inner ring 1 is installed on the inner side of the plurality of cylindrical rollers 3, and the stoppers 5 at both ends of the plurality of cylindrical rollers 3 are in contact with the inner ring stop surface 8 and the outer ring stop surface 10 respectively.

Claims

1. A self-aligning shaft positioning roller bearing, comprising an inner ring (1), an outer spherical outer ring (2), an inner spherical outer ring (16), a plurality of cylindrical rollers (3), and a cage (4), characterized in that: The multiple cylindrical rollers (3) have stoppers (5) at both ends, respectively. A central recessed hole (6) is provided at the center of the two end surfaces of the multiple cylindrical rollers (3). One end of the shaft head (7) is inserted into the central recessed hole (6). An inner ring stopper surface (8) is provided on the outer wall of one end of the inner ring (1) at a position matching the stoppers (5) at the ends of the multiple cylindrical rollers (3). An inner ring groove (9) is provided on the outer wall of the other end of the inner ring (1); an outer ring stopper surface (10) matching the stoppers (5) at the ends of the multiple cylindrical rollers (3) is provided on the inner wall of one end of the outer spherical outer ring (2), and an outer ring groove (11) is provided on the other end of the outer spherical outer ring (2); the retaining frame (4) is composed of two ring-shaped sheets (12), a plurality of connecting columns (13) and a plurality of shaft heads (7). The two ring-shaped sheets (12) The plurality of connecting columns (13) are arranged in parallel, and are fixedly arranged between the two ring-shaped sheets (12) at set positions. A shaft head (7) is provided on the corresponding inner sides of the two ring-shaped sheets (12) and between each two connecting columns (13). The plurality of connecting columns (13) are provided with connecting holes (14), and long rod rivets (15) are fixed in the connecting holes (14). The plurality of cylindrical rollers (3) are respectively installed between the two ring-shaped sheets (12). The inner spherical outer ring (16) matches the outer spherical outer ring (2) and is sleeved on the outer end surfaces of the plurality of cylindrical rollers (3). The inner ring (1) is installed on the inner sides of the plurality of cylindrical rollers (3), and the stoppers (5) at both ends of the plurality of cylindrical rollers (3) are in contact with the inner ring stop surface (8) and the outer ring stop surface (10).

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