Bearing retainer and bearing with same

Abstract

The bearing retainer comprises an outer retaining ring and an inner retaining ring integrally formed on the inner wall of the outer retaining ring, and a plurality of arc-shaped seats are arranged between the inner retaining ring and the outer retaining ring at equal intervals. An arc-shaped cutting part is arranged at a gap between the outer retaining ring and the inner retaining ring between the adjacent arc-shaped seats, and a completely penetrating through hole is formed in the outer wall of the outer retaining ring and the outer wall of the inner retaining ring on one side of the arc-shaped cutting part. The upper sealing cover and the lower sealing cover form a shielding surface for protecting the ball supporting ring and the ball, and the upper sealing cover and the lower sealing cover can effectively eliminate a gap between the inner ring and the outer ring of the bearing, so that the sealing performance of the bearing is improved, and external pollutants, dust, moisture or other harmful substances can be prevented from entering the bearing.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a bearing retainer and a bearing having the bearing retainer. Background Art

[0002] The cage of the bearing ball is an indispensable component of the bearing. The cage ensures the accurate positioning of the ball, prevents it from being displaced or collided, and ensures the normal operation of the bearing. Secondly, by providing stable support for the ball, the cage improves the stability of the bearing, reduces the swing and vibration during high-speed rotation, and thus enhances the reliability of the bearing. In addition, the design of the cage also affects the distribution of lubricants in the bearing. The appropriate structure can promote the uniform distribution of lubricants, reduce friction and wear, and extend the life of the bearing. The structure of the cage is diverse, including riveting, groove, stamping and button types, each of which has its applicable scenarios and characteristics. However, at this stage, when the cage is assembled between the inner and outer rings of the bearing, a dust cover will be added to eliminate the gap between the inner and outer rings. At this time, the dust cover and the cage are two independent parts and are not connected. This makes a tiny gap or gap between the dust cover and the cage, allowing external pollutants, dust or liquids to penetrate into the bearing and cover the balls, thereby affecting the normal operation and life of the bearing. Utility Model Content

[0003] The purpose of the utility model is to provide a bearing retainer and a bearing having the bearing retainer, and to add a sealing cover that can be assembled at the top and bottom ends of the retainer, so as to eliminate the gap between the inner and outer rings and prevent external contaminants from entering the interior of the bearing, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bearing retainer, comprising an outer retaining ring and an inner retaining ring integrally formed on the inner wall of the outer retaining ring, a plurality of equidistant arc seats are arranged between the inner retaining ring and the outer retaining ring, arc-shaped cut-out portions are arranged at the gaps between the outer retaining ring and the inner retaining ring between adjacent arc-shaped seats, a completely penetrating through hole is arranged on the outer wall of the outer retaining ring and the inner retaining ring on one side of the arc-shaped cut-out portion, a ball support ring is fixed inside the through hole, and an upper sealing cover and a lower sealing cover are respectively installed on the top and bottom ends of the outer retaining ring and the inner retaining ring through an arc-shaped plug-in structure.

[0005] Preferably, the outer retaining ring and the inner retaining ring are both made of stainless steel.

[0006] Preferably, the top and bottom ends of the arc-shaped seat are both provided with an arc-shaped groove, and the bottom of the arc-shaped groove is provided with two symmetrical columnar grooves.

[0007] Preferably, the arc-shaped plug-in structure includes a plurality of arc-shaped docking seats fixed at equal intervals on the bottom end of the upper sealing cover, the arc-shaped docking seat includes an arc-shaped tile unit installed at the bottom end of the upper sealing cover, and docking columns installed on both sides of the bottom end of the arc-shaped tile unit, and the docking columns and columnar grooves are plugged into each other.

[0008] Preferably, eight arc-shaped tile monomers are provided, and the eight arc-shaped tile monomers are symmetrically structured about the vertical center line of the upper sealing cover.

[0009] Preferably, the height of the arc-shaped tile monomer is 0.5 cm to 1 cm.

[0010] The utility model also provides a bearing, which comprises the above-mentioned bearing retainer, the outer peripheral surfaces of the upper sealing cover and the lower sealing cover are sleeved with an outer shaft ring, and the inner wall of the inner retaining ring is installed with an inner shaft ring.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the bearing retainer and the bearing having the bearing retainer are provided with a structure that cooperates with each other, such as an upper sealing cover and an outer retaining ring. The upper sealing cover and the lower sealing cover can be assembled to the top end or the bottom end of the outer retaining ring through an arc-shaped plug-in structure. The upper sealing cover and the lower sealing cover are used to form a protective ball support ring and a shielding surface for the ball. The upper sealing cover and the lower sealing cover can effectively eliminate the gap between the inner and outer rings of the bearing, improve the sealing of the bearing, help prevent external pollutants, dust, moisture or other harmful substances from entering the interior of the bearing, ensure the cleanliness of the ball, reduce the friction of the ball, and improve the rotation performance of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the upper sealing cover and the outer retaining ring after being separated from the utility model;

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the outer shaft ring of the utility model;

[0016] In the figure: 1. outer retaining ring; 2. inner retaining ring; 3. arc seat; 301. arc-shaped tile groove; 4. arc-shaped cut-out portion; 5. through hole; 6. ball support ring; 7. upper sealing cover; 8. lower sealing cover; 9. arc-shaped docking seat; 901. arc-shaped tile monomer; 902. docking column; 10. outer shaft ring; 11. inner shaft ring. DETAILED DESCRIPTION

[0017] 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. 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.

[0018] See also Figure 1-3 The utility model provides an embodiment: a bearing retainer, comprising an outer retaining ring 1 and an inner retaining ring 2 integrally formed on the inner wall of the outer retaining ring 1, a plurality of equally spaced arc seats 3 are arranged between the inner retaining ring 2 and the outer retaining ring 1, arc-shaped cut-off portions 4 are arranged at the gaps between the outer retaining ring 1 and the inner retaining ring 2 between adjacent arc-shaped seats 3, a completely penetrating through hole 5 is arranged on the outer wall of the outer retaining ring 1 and the inner retaining ring 2 on one side of the arc-shaped cut-off portion 4, a ball support ring 6 is fixed inside the through hole 5, and an upper sealing cover 7 and a lower sealing cover 8 are respectively installed at the top and bottom ends of the outer retaining ring 1 and the inner retaining ring 2 through an arc-shaped plug-in structure;

[0019] The outer retaining ring 1 and the inner retaining ring 2 are both made of stainless steel. Stainless steel has excellent corrosion resistance and can resist the erosion of most chemical substances, including water, oxygen, acid, alkali, etc. This allows the bearing to maintain stable performance in harsh environments such as humidity and corrosive gases.

[0020] The top and bottom of the arc seat 3 are both provided with an arc-shaped groove 301, and the bottom of the arc-shaped groove 301 is provided with two symmetrical columnar grooves. The arc-shaped plug-in structure includes a plurality of arc-shaped docking seats 9 fixed at equal intervals at the bottom of the upper sealing cover 7. The arc-shaped docking seat 9 includes an arc-shaped tile monomer 901 installed at the bottom of the upper sealing cover 7, and docking columns 902 installed on both sides of the bottom of the arc-shaped tile monomer 901. The height of the arc-shaped tile monomer 901 is 0.5 cm to 1 cm. The docking columns 902 and the columnar grooves are plugged into each other. When the upper sealing cover 7 and the lower sealing cover 8 are connected to the retaining frame, the arc-shaped tile monomer 901 at the bottom of the upper sealing cover 7 is plugged into the arc-shaped groove 301 until the docking columns 902 are completely inserted into the columnar groove at the bottom of the arc-shaped groove 301, so that the upper sealing cover 7 and the outer retaining ring 1 are firmly docked;

[0021] There are eight arc-shaped tile monomers 901, and the eight arc-shaped tile monomers 901 are symmetrically structured about the vertical center line of the upper sealing cover 7. The arc-shaped tile monomers 901 and the arc-shaped tile grooves 301 provide additional structural support, thereby enhancing the stability of the connection between the upper sealing cover 7, the lower sealing cover 8 and the outer retaining ring 1;

[0022] Second, see Figure 4The utility model also provides a bearing, which includes the above-mentioned bearing retainer, the outer peripheral surfaces of the upper sealing cover 7 and the lower sealing cover 8 are sleeved with an outer shaft ring 10, and the inner wall of the inner retaining ring 2 is installed with an inner shaft ring 11;

[0023] The outer shaft ring 10 is sleeved on the outside of the annular structure composed of the upper sealing cover 7, the outer retaining ring 1, and the lower sealing cover 8, while the inner shaft ring 11 is installed inside the inner retaining ring 2. At this time, the outer wall of the inner shaft ring 11 contacts with a plurality of balls, and the upper sealing cover 7 and the lower sealing cover 8 are used to eliminate the gap between the outer shaft ring 10 and the inner shaft ring 11, so as to keep the inside of the bearing clean and reduce the pollution of the external environment to the bearing.

[0024] When the embodiment of the present application is in use, first, the retaining frame is composed of an outer retaining ring 1 and an inner retaining ring 2 as the main skeleton, forming a double-layer stacked reinforcement frame. At the same time, a plurality of arc seats 3 are integrally formed between the outer retaining ring 1 and the inner retaining ring 2 to improve the structural stability of the retaining frame and the support strength for the balls. The ball support ring 6 is used to install the balls. The staff takes out the upper sealing cover 7 and the lower sealing cover 8, so that the upper sealing cover 7 and the lower sealing cover 8 can be assembled to the top or bottom end of the outer retaining ring 1 through the arc plug-in structure, and the upper sealing cover 7 and the lower sealing cover 8 are used to form a shielding surface for protecting the ball support ring 6 and the balls. The upper sealing cover 7 and the lower sealing cover 8 can effectively eliminate the gap between the inner and outer rings of the bearing, improve the sealing of the bearing, help prevent external pollutants, dust, moisture or other harmful substances from entering the interior of the bearing, ensure the cleanliness of the balls, reduce the friction of the balls, and improve the rotation performance of the bearing.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A bearing retainer, characterized in that: The invention comprises an outer retaining ring (1) and an inner retaining ring (2) integrally formed on the inner wall of the outer retaining ring (1); a plurality of equally spaced arc seats (3) are arranged between the inner retaining ring (2) and the outer retaining ring (1); arc-shaped cut-out portions (4) are arranged at the gaps between the outer retaining ring (1) and the inner retaining ring (2) between adjacent arc-shaped seats (3); a completely penetrating through hole (5) is arranged on the outer wall of the outer retaining ring (1) and the inner retaining ring (2) on one side of the arc-shaped cut-out portion (4); a ball support ring (6) is fixed inside the through hole (5); and an upper sealing cover (7) and a lower sealing cover (8) are respectively installed at the top and bottom ends of the outer retaining ring (1) and the inner retaining ring (2) through an arc-shaped plug-in structure.

2. A bearing retainer according to claim 1, characterized in that: The outer retaining ring (1) and the inner retaining ring (2) are both made of stainless steel.

3. A bearing retainer according to claim 1, characterized in that: The top and bottom ends of the arc-shaped seat (3) are both provided with an arc-shaped groove (301), and the bottom of the arc-shaped groove (301) is provided with two symmetrical columnar grooves.

4. A bearing retainer according to claim 3, characterized in that: The arc-shaped plug-in structure comprises a plurality of arc-shaped docking seats (9) fixed at equal intervals on the bottom end of the upper sealing cover (7); the arc-shaped docking seat (9) comprises an arc-shaped tile unit (901) mounted on the bottom end of the upper sealing cover (7), and docking columns (902) mounted on both sides of the bottom end of the arc-shaped tile unit (901); the docking columns (902) and the columnar grooves are plugged into each other.

5. A bearing retainer according to claim 4, characterized in that: A total of eight arc-shaped tile monomers (901) are provided, and the eight arc-shaped tile monomers (901) are symmetrically structured with respect to the vertical center line of the upper sealing cover (7).

6. A bearing retainer according to claim 4, characterized in that: The height of the arc-shaped tile monomer (901) is 0.5 cm to 1 cm.

7. A bearing, characterized in that: The bearing comprises a bearing retainer as claimed in any one of claims 1 to 6, the outer peripheral surfaces of the upper sealing cover (7) and the lower sealing cover (8) are sleeved with an outer shaft ring (10), and the inner wall of the inner retaining ring (2) is installed with an inner shaft ring (11).

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