Biconical roller bearing retainer

Abstract

The utility model discloses a biconical roller bearing retainer, which relates to the technical field of bearings and comprises a retainer body provided with window holes, the retainer body is a cylindrical ring body, the number of the window holes is matched with that of rollers, and the window holes are of an axisymmetric hexagonal structure. The hexagonal window hole is provided with a pair of bilaterally symmetrical device hole long edges, a pair of bilaterally symmetrical device hole short edges and a pair of bottom edges corresponding to the upper end and the lower end of a roller, the connecting positions of the device hole long edges and the device hole short edges are in arc transition, and annular grooves are further formed in the positions, close to the two ends, of the outer surface of the retainer body respectively. Through round holes are formed in the retainer body and between the adjacent window holes; due to the adoption of the cylindrical design and the brass material, uniform distribution of the rollers is realized, the lubricating effect of the bearing is improved, the working interference of the bearing is reduced, the service life of the bearing is prolonged, and the reliability of the bearing is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearings, and in particular relates to a double-taper roller bearing retainer. Background Art

[0002] In mechanical transmission systems, bearings are important components that support shafts, and their performance directly affects the operating efficiency and life of mechanical equipment. Tapered roller bearings, as a type of bearing, are widely used in various mechanical equipment. The conical design of traditional tapered roller bearing retainers is prone to interference under complex working conditions, affecting the installation efficiency and reliability of bearings. Traditional retainers have limitations in lubrication, and it is difficult for lubricating oil or grease to fully flow into the gap between the roller and the retainer, resulting in poor lubrication effect. Traditional steel retainers are prone to scratching the roller surface during bearing operation, affecting the working surface performance and stability of the bearing.

[0003] The existing prior application number is 2024210084750, which is an energy-saving tapered roller bearing. The roller axis of the bearing is parallel to the central axis of the inner ring and the outer ring; the large rib of the inner ring is changed to a tapered raceway working surface, and the big head of the roller is changed to a tapered working surface, so that the two working surfaces form a pure rolling operation mode, thereby eliminating sliding friction, reducing bearing friction, reducing energy consumption, and increasing bearing life. A double tapered roller bearing retainer is now designed for use on the bearing. Utility Model Content

[0004] The utility model aims to provide a double-taper roller bearing retainer, aiming to solve the problems of poor lubrication effect and insufficient reliability existing in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a double-taper roller bearing retainer, comprising a retainer body provided with window holes, the retainer body is a cylindrical ring body, the number of the window holes matches the number of rollers and is an axially symmetrical hexagonal structure, the hexagonal window holes form a pair of left-right symmetrical long sides of the holes, a pair of left-right symmetrical short sides of the holes and a pair of bottom sides corresponding to the upper and lower ends of the rollers, the long sides of the holes and the short sides of the holes are connected by an arc transition, annular grooves are respectively provided on the outer surface of the retainer body and near the two ends, and a through circular hole is provided on the retainer body and between adjacent window holes.

[0006] Furthermore, the circular hole is provided with two annular grooves respectively adjacent to two ends along the axial direction of the retainer body.

[0007] Furthermore, the retainer body is made of brass.

[0008] Furthermore, the height of the retainer body is smaller than the height of the inner and outer rings of the bearing.

[0009] The utility model has the following beneficial effects:

[0010] The utility model designs a cylindrical retainer in combination with the structural characteristics of the double-taper roller bearing. Different from the traditional tapered retainer, it is easier to process and form, reduces production costs, reduces interference in complex working conditions, and improves the installation efficiency and reliability of the bearing. At the same time, through the design of the surrounding annular groove and the circular hole, the lubricating oil or grease can fully flow into the gap between the roller and the retainer to improve the lubrication effect. The brass material replaces the steel material to avoid scratching the roller surface and affecting the working surface performance and stability of the bearing, which helps the bearing to dissipate heat and increase the working temperature range of the bearing. It meets the continuous optimization and development of bearing products and the improvement of bearing performance requirements, improves the shortcomings of traditional retainers, and improves the performance and reliability of bearings. It has important practical significance and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model with double tapered rollers;

[0012] Figure 2 The utility model is a schematic diagram of the overall three-dimensional structure;

[0013] Figure 3 A schematic diagram of the lateral plane structure of the utility model;

[0014] In the figure: 1, window hole, 2, retainer body, 3, roller, 4, long side of the hole, 5, short side of the hole, 6, bottom side, 7, annular groove, 8, round hole. DETAILED DESCRIPTION

[0015] like Figures 1 to 3As shown, a double tapered roller bearing retainer includes a retainer body 2 provided with window holes 1, the retainer body 2 is a cylindrical ring body, the number of window holes 1 matches the number of rollers 3 and is an axisymmetric hexagonal structure, the hexagonal window holes 1 form a pair of left-right symmetrical long sides 4 of the retainer holes, a pair of left-right symmetrical short sides 5 of the retainer holes and a pair of bottom sides 6 corresponding to the upper and lower ends of the rollers 3, the long sides 4 of the retainer holes and the short sides 5 of the retainer holes respectively correspond to the long raceway and the short raceway of the rollers 3, the size and shape of the window holes 1 are precisely designed according to the actual size and shape of the rollers, so that the rollers 3 can be evenly distributed inside the bearing, The bearing capacity and stability are improved, while allowing lubricating oil or grease to flow through the retainer to fully lubricate the bearing; the arc transition at the connection between the long side 4 of the retainer hole and the short side 5 of the retainer hole is mainly used to eliminate the stress concentration phenomenon when the retainer is working and increase the strength of the retainer; annular grooves are also provided near the two ends of the outer surface of the retainer body 2, and a circular hole 8 is provided between adjacent window holes 1 and on the retainer body 2. The circular hole 8 is provided with two annular grooves 7 along the axial direction of the retainer body 2 and are respectively adjacent to the two ends. This structural design can store lubricating oil and further improve the lubrication and heat dissipation performance of the bearing.

[0016] The retainer body 2 is made of brass, which has good corrosion resistance, high strength and toughness, and has a lower hardness than bearing steel. It can greatly reduce surface damage to the roller 3 and increase the service life of the bearing. At the same time, the brass material can also effectively transfer heat energy and improve the heat dissipation performance of the bearing. The height of the retainer body 2 is less than the height of the inner and outer rings of the bearing, which can ensure that the retainer will not interfere with the inner and outer rings of the bearing during installation, thereby improving the installation efficiency and reliability of the bearing.

Claims

1. A double tapered roller bearing retainer, comprising a retainer body (2) provided with a window hole (1), characterized in that: The retainer body (2) is a cylindrical ring body. The number of the window holes (1) matches the number of the rollers (3) and is an axisymmetric hexagonal structure. The window holes (1) are formed with a pair of left-right symmetrical long sides (4), a pair of left-right symmetrical short sides (5) and a pair of bottom sides (6) corresponding to the upper and lower ends of the rollers (3). The connection between the long sides (4) and the short sides (5) of the retainer holes is an arc transition. Annular grooves (7) are respectively provided on the outer surface of the retainer body (2) and near the two ends. A through circular hole (8) is provided on the retainer body (2) and located between adjacent window holes (1).

2. A double tapered roller bearing retainer according to claim 1, characterized in that: The circular hole (8) is provided with two annular grooves (7) respectively adjacent to two ends along the axial direction of the retainer body (2).

3. A double tapered roller bearing retainer according to claim 1, characterized in that: The retainer body (2) is made of brass.

4. A double tapered roller bearing retainer according to claim 1, characterized in that: The height of the retainer body (2) is smaller than the height of the inner and outer rings of the bearing.

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