Mute retainer of bearing

Abstract

The utility model discloses a mute retainer of a bearing, which comprises a mounting outer ring and a lower retainer, and the lower retainer is arranged in the mounting outer ring; the upper retainer is mounted at the upper end of the lower retainer, a bolt is mounted in the upper retainer, balls are mounted at the left end and the right end of the bolt, a positioning groove is formed in the upper side of the left end of the lower retainer, a left support is arranged at the right end of the positioning groove, and a right support is arranged on the upper side of the right end of the lower retainer; a limiting block is arranged at the right end of the right support, and the lower end of the limiting block is connected with a spring. And the sealing ring is arranged at the outer end of the upper retainer, and a supporting plate is mounted in the sealing ring. The mute retainer of the bearing is convenient to disassemble and assemble, parts are convenient to replace, and lubricating grease is added, so that the rotating shaft is high in rotating speed, low in noise, good in sealing effect, convenient to prevent dust and water, low in lubricating grease loss and long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing retainers, in particular to a silent retainer for a bearing. Background Art

[0002] When bearings are tested with vibration velocity and vibration acceleration instruments, no abnormal noise should be heard and the oscilloscope display should show a straight line. We define bearings with such requirements as silent bearings for servo motors. The main reason that affects the silent effect of motor bearings is the structure of the cage.

[0003] The announcement number CN 107588103A provides a silent bearing cage, including a circular cage body, a plurality of spacer blocks are evenly arranged on the cage body, a pocket hole is formed between two adjacent spacer blocks, the bottom surface of the pocket hole is a first arc surface, the side surface of the pocket hole is a cylindrical surface, a locking part is formed on both sides of the upper end opening of the pocket hole, and the inner surface of the locking part forms a second arc surface. The product of the present invention effectively solves the abnormal sound problem of the bearing by improving the structure of the cage. The bearing using the product of the present invention can effectively replace imported bearings and reduce the use cost of the enterprise; at the same time, the raceway guiding method and oil storage effect of the product of the present invention are greatly improved.

[0004] The above-mentioned prior art solutions have the following defects: the bearing retainer is complicated to disassemble and assemble, it is not convenient to replace parts, and it has no grease, low speed, strong noise, poor sealing effect, no dust and water resistance, and short service life. Therefore, the utility model provides a silent bearing retainer to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a silent bearing retainer to solve the problems raised in the above-mentioned background technology that the bearing retainer is complicated to disassemble and assemble, inconvenient to replace parts, has no grease, has a low speed, strong noise, poor sealing effect, cannot be dustproof and waterproof, and has a short service life.

[0006] To achieve the above object, the utility model provides the following technical solutions: a silent cage of a bearing, comprising an outer mounting ring and a lower cage, wherein the lower cage is arranged inside the outer mounting ring;

[0007] Also includes:

[0008] An upper retainer, which is installed on the upper end of the lower retainer, a bolt is installed inside the upper retainer, and balls are installed on both the left and right ends of the bolt, a positioning groove is opened on the upper side of the left end of the lower retainer, and a left bracket is arranged on the right end of the positioning groove, a right bracket is arranged on the upper side of the right end of the lower retainer, and a limiting block is arranged on the right end of the right bracket, and a spring is connected to the lower end of the limiting block;

[0009] The sealing ring is arranged at the outer end of the upper retaining frame, a support plate is installed inside the sealing ring, and a cavity is arranged inside the support plate, and an inner ring is installed inside the ball.

[0010] Preferably, the upper end of the lower retaining frame is connected to the upper retaining frame in a snap-fit ​​manner, and a plurality of slots for fitting the balls are provided at equal intervals inside the lower retaining frame.

[0011] Preferably, the bolts are arranged at equal angles with respect to the midpoint of the lower retaining frame, and the bolts are disposed bilaterally symmetrically with respect to the central axis of the ball.

[0012] Preferably, a slotted positioning groove that fits the limiting block is provided on the upper side of the left end of the lower retaining frame, and the upper end of the positioning groove is connected to the limiting block on the upper retaining frame in a snap-fit ​​manner.

[0013] Preferably, the left bracket and the right bracket are arranged symmetrically with respect to the central axis of the lower retaining frame, and the upper ends of the left bracket and the right bracket are connected to the upper retaining frame in a snap-fit ​​manner.

[0014] Preferably, the outer end of the sealing ring is connected to the mounting outer ring in a snap-fit ​​manner, and the inner end of the sealing ring is connected to the mounting inner ring in a snap-fit ​​manner.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the silent cage of the bearing is easy to disassemble and assemble, and parts are easy to replace. Lubricating grease is added, so that the shaft has high speed and low noise, good sealing effect, convenient dust and water proofing, low grease loss and long service life.

[0016] 1. A left bracket, a limiting block and a spring are provided to position the lower retainer and the upper retainer, and then the installed parts are clamped between the installation outer ring and the installation inner ring. The bearing is easy to disassemble and assemble, easy to replace parts, and easy to use;

[0017] 2. A lower cage, an upper cage and a cavity are provided. A large amount of grease is applied to the outer surface cavity, and a sealing ring is covered on the outermost layer to seal the grease. The addition of grease can facilitate the daily maintenance of the bearing, making the bearing rotate more smoothly, and effectively solve the problem of abnormal noise of the bearing, so that the bearing has the advantages of high speed and low noise;

[0018] 3. A sealing ring, a support plate and a cavity are provided at both the front and rear ends of the ball, and the ball and grease are wrapped inside the device, which has a good sealing effect, is convenient for waterproofing and dustproofing, and is convenient for reducing the loss of grease, and the service life of the device is long. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0020] Figure 2 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure between the lower cage and the ball of the utility model;

[0022] Figure 4 For this utility model Figure 1 A schematic diagram of the enlarged structure in the middle.

[0023] In the figure: 1. Install the outer ring; 2. Lower retainer; 3. Upper retainer; 4. Bolt; 5. Ball; 6. Positioning groove; 7. Left bracket; 8. Right bracket; 9. Limiting block; 10. Spring; 11. Sealing ring; 12. Support plate; 13. Cavity; 14. Install the inner ring. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-4 The utility model provides a technical solution: a silent retainer of a bearing, comprising an outer ring 1, a lower retainer 2, an upper retainer 3, bolts 4, balls 5, positioning grooves 6, a left bracket 7, a right bracket 8, a limiting block 9, a spring 10, a sealing ring 11, a support plate 12, a cavity 13 and an inner ring 14.

[0026] An upper retainer 3 is mounted on the upper end of the lower retainer 2, a bolt 4 is mounted inside the upper retainer 3, and balls 5 are mounted on both the left and right ends of the bolt 4, a positioning groove 6 is opened on the upper side of the left end of the lower retainer 2, and a left bracket 7 is arranged on the right end of the positioning groove 6, a right bracket 8 is arranged on the upper side of the right end of the lower retainer 2, and a limiting block 9 is arranged on the right end of the right bracket 8, and a spring 10 is connected to the lower end of the limiting block 9;

[0027] The sealing ring 11 is arranged at the outer end of the upper retaining frame 3 , a support plate 12 is installed inside the sealing ring 11 , and a cavity 13 is arranged inside the support plate 12 , and an inner mounting ring 14 is installed inside the ball 5 .

[0028] like Figure 1 , Figure 3 and Figure 4As shown, the upper end of the lower retainer 2 is connected to the upper retainer 3 in a snap-fit ​​manner, and a plurality of slots that fit the balls 5 are provided at equal intervals inside the lower retainer 2. The bolts 4 are arranged at equal angles about the midpoint of the lower retainer 2, and the bolts 4 are symmetrically arranged about the central axis of the balls 5. A slot positioning groove 6 that fits the limiting block 9 is provided on the upper side of the left end of the lower retainer 2, and the upper end of the positioning groove 6 is connected to the limiting block 9 on the upper retainer 3 in a snap-fit ​​manner. The left bracket 7 and the right bracket 8 are symmetrically arranged about the central axis of the lower retainer 2, and the upper ends of the left bracket 7 and the right bracket 8 are both connected to the upper retainer 3 in a snap-fit ​​manner. When using the bearing, first place the balls 5 one by one in the arc-shaped slots of the lower retainer 2 and the upper retainer 3, and then position and fix them with the bolts 4. After the installation is completed, The lower retainer 2 is aligned with the upper retainer 3, the left bracket 7 and the right bracket 8 are clamped inside the upper retainer 3, and the positioning groove 6 is aligned with the limiting block 9 up and down, and finally the ball 5 on the upper side is pressed inwardly and installed inside the left bracket 7 and the right bracket 8, so as to position the lower retainer 2 and the upper retainer 3, and then the installed parts are clamped between the installation outer ring 1 and the installation inner ring 14, and a large amount of grease is applied to the outer surface cavity 13, and the sealing ring 11 is covered on the outermost layer to seal the grease, so that the installation is completed. The addition of grease can facilitate the daily maintenance of the bearing, make the bearing rotate more smoothly, and effectively solve the problem of abnormal noise of the bearing, so that the bearing has the advantages of high speed, low noise, etc., and the bearing is easy to disassemble and assemble, easy to replace parts, and easy to use.

[0029] like Figure 2 As shown, the outer end of the sealing ring 11 is connected to the mounting outer ring 1 by a snap-fitting manner, and the inner end of the sealing ring 11 is connected to the mounting inner ring 14 by a snap-fitting manner. The sealing ring 11 is arranged at both the front and rear ends of the ball 5, and the ball 5 and the grease are wrapped inside the device, which has a good sealing effect, is convenient for waterproofing and dustproofing, and is convenient for reducing the loss of grease, and the service life of the device is long.

[0030] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A silent cage of a bearing, comprising a mounting outer ring (1) and a lower cage (2), wherein the lower cage (2) is arranged inside the mounting outer ring (1); It is characterized in that Also includes: An upper retaining frame (3) is mounted on the upper end of the lower retaining frame (2), a bolt (4) is mounted inside the upper retaining frame (3), and balls (5) are mounted on both the left and right ends of the bolt (4), a positioning groove (6) is provided on the upper side of the left end of the lower retaining frame (2), and a left bracket (7) is provided on the right end of the positioning groove (6), a right bracket (8) is provided on the upper side of the right end of the lower retaining frame (2), and a limiting block (9) is provided on the right end of the right bracket (8), and a spring (10) is connected to the lower end of the limiting block (9); A sealing ring (11) is arranged at the outer end of the upper retaining frame (3), a support plate (12) is installed inside the sealing ring (11), and a cavity (13) is arranged on the inner side of the support plate (12), and an inner mounting ring (14) is installed inside the ball (5).

2. The silent bearing retainer according to claim 1, characterized in that: The upper end of the lower retaining frame (2) is connected to the upper retaining frame (3) in a snap-fitting manner, and a plurality of slots for fitting the balls (5) are provided at equal intervals inside the lower retaining frame (2).

3. The silent bearing retainer according to claim 1, characterized in that: The bolts (4) are arranged at equal angles with respect to the midpoint of the lower retaining frame (2), and the bolts (4) are disposed symmetrically with respect to the central axis of the ball (5).

4. The silent bearing retainer according to claim 1, characterized in that: A slotted positioning groove (6) that fits the limiting block (9) is provided on the upper left end of the lower retaining frame (2), and the upper end of the positioning groove (6) is connected to the limiting block (9) on the upper retaining frame (3) in a snap-fit ​​manner.

5. The silent bearing retainer according to claim 1, characterized in that: The left bracket (7) and the right bracket (8) are arranged symmetrically about the central axis of the lower retaining frame (2), and the upper ends of the left bracket (7) and the right bracket (8) are connected to the upper retaining frame (3) in a snap-fit ​​manner.

6. The silent bearing retainer according to claim 1, characterized in that: The outer end of the sealing ring (11) is connected to the mounting outer ring (1) in a snap-fit ​​manner, and the inner end of the sealing ring (11) is connected to the mounting inner ring (14) in a snap-fit ​​manner.

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