A crown-shaped cage for a bearing

Abstract

The utility model relates to the technical field of bearing retainers, and in particular to a crown retainer for bearings. Its technical solution includes: an outer ring 1, a crown retainer body, a screw rod 1, an outer ring 2 and a screw rod 2, the inner walls of the outer ring 1 and the outer ring 2 are both installed with a crown retainer body; a liquid inlet pipe is embedded and fixed on the crown retainer body; the top surfaces of the outer ring 1 and the outer ring 2 are both provided with a groove 1, and the bottom surfaces of the outer ring 1 and the outer ring 2 are both provided with a groove 2; both ends of the screw rod 1 are sleeved with a limit block 1, and the limit block is sleeved in the groove 1; both ends of the screw rod 2 are sleeved with a limit block 2, and the limit block 2 is sleeved in the groove 2; a ball pocket is sleeved in the crown retainer body. The utility model meets the use of the bearing retainer, and the worn parts of the bearing balls can be replaced separately during use, and the lubricating oil body can be directly added for use, and secondary limit clamping can be performed after installation.

Description

Technical Field

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

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy.

[0003] As one of the four major parts of a bearing, the cage is the key to ensuring silent rotation of the bearing.

[0004] After searching, the patent announcement number CN108775341B discloses a bearing retainer and a bearing using the bearing retainer. The bearing retainer includes a retainer body, on which a plurality of pockets are arranged, the inner wall of the pockets is a cylindrical surface extending radially along the retainer body, and the inner wall of the pockets is provided with a guide slide extending circumferentially along the cylindrical surface for guiding the rolling of the balls. The arrangement of the guide slide enables the balls installed in the pockets to only roll along the circumference of the bearing retainer, limits the amount of movement of the balls in the bearing, controls the movement range of the balls, avoids the balls from easily moving along the radial direction of the bearing retainer, improves the rotation accuracy of the bearing, and further achieves the effect of reducing the noise generated by the collision between the balls and the inner ring, and between the balls and the outer ring. In addition, grease can be added to the guide slide to reduce the friction when the balls roll.

[0005] The prior art CN108775341B achieves the effect of reducing the noise generated by the collision between the ball and the inner ring, and between the ball and the outer ring during use. In addition, grease can be added to the guide slide to reduce the friction of the ball when rolling, but the bearing cage needs to be disassembled to add lubricating oil after long-term use, and the internal part needs to be replaced as a whole after long-term wear, and maintenance and repair cannot be performed according to the actual single position. The connection is easy to loosen after long-term use and friction, so it needs to be improved. Utility Model Content

[0006] The utility model aims to provide a crown-shaped retainer for a bearing to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crown-shaped cage for a bearing, comprising an outer ring 1, a crown-shaped cage body, a screw 1, an outer ring 2 and a screw 2,

[0008] The inner walls of the outer ring 1 and the outer ring 2 are both installed with a crown-shaped cage body;

[0009] A liquid inlet pipe is embedded and fixed on the crown retainer body;

[0010] The top end surfaces of the outer ring 1 and the outer ring 2 are both provided with a groove 1, and the bottom end surfaces of the outer ring 1 and the outer ring 2 are both provided with a groove 2;

[0011] Both ends of the screw rod 1 are sleeved with a limiting block 1, and the limiting block is sleeved in the groove 1;

[0012] Both ends of the second screw are sleeved with the second limiting block, and the second limiting block is sleeved in the second groove;

[0013] A ball pocket is sleeved in the crown retainer body.

[0014] Preferably, a cavity is provided in the crown retainer body. The cavity is provided in the crown retainer body so that the lubricating oil entering the crown retainer body can be stored.

[0015] Preferably, the liquid inlet pipe is in liquid communication with the cavity of the crown-shaped cage body, and a sealing cap is threadedly mounted on the liquid inlet pipe. Lubricating oil required by the bearing can be injected into the cavity of the crown-shaped cage body for storage through the liquid inlet pipe.

[0016] Preferably, a connecting frame is welded on the crown-shaped retainer body, and a bolt 1 is threadedly installed in the connecting frame. The bolt 1 is threadedly installed through the connecting frame, so that the bolt 1 connects the two sets of crown-shaped retainer bodies.

[0017] Preferably, both ends of the screw rod 1 are threadedly mounted with nuts 1, and the nuts 1 limit the position of the limit block 1. The nuts 1 limit the position of the limit block 1, so that the limit block 1 is installed in the groove 1, and the personnel can rotate the nuts 1 to move the limit block 1 forward to limit the position of the limit block 1, so that the limit block 1 is clamped in the groove 1.

[0018] Preferably, two nuts are installed at both ends of the screw rod 2 through threads, and the nuts 2 limit the position of the limit block 2. The limit block 2 is limited by the nuts 2, so that after the limit block 2 is installed in the groove 2, the personnel can rotate the nuts 2 to move the limit block 2 forward to limit the position of the limit block 2, so that the limit block 2 is clamped in the groove 2.

[0019] Preferably, the ball pocket and the crown cage body are both provided with a liquid outlet, and the ball pocket and the crown cage body are connected through the liquid outlet. The lubricating oil stored in the crown cage body can be discharged through the liquid outlet to the ball pocket.

[0020] Preferably, the ball pocket is threadedly installed with a second bolt, and the second bolt is threadedly installed in the crown cage body. The second bolt is threadedly installed in the crown cage body, so that the ball pocket can be installed in the crown cage body.

[0021] Preferably, there are four grooves 1 and 2 in total, and the four grooves 1 and 2 are symmetrically distributed with respect to the outer ring 1 and the outer ring 2. Since there are four grooves 1 and 2 in total, the four limit blocks 1 and 2 can be sleeved in the grooves 1 and 2 for placement.

[0022] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0023] 1. The utility model provides a ball pocket. When personnel install the crown-shaped cage body on the bearing, the personnel can install the crown-shaped cage body on the bearing through the ball pocket. During installation, the ball pockets can be respectively sleeved in the crown-shaped cage body for installation. During installation, the personnel can threadably install the second bolt in the ball pocket and the crown-shaped cage body, so that the ball pocket and the crown-shaped cage body can be connected, thereby meeting the installation of the ball pocket, and the ball pocket can be disassembled separately by reverse rotation of the second bolt, thereby avoiding the replacement of a single ball pocket after wear and damage, and avoiding the overall replacement after wear affecting the later use. The outer ring one, the outer ring two and the crown-shaped cage body can be connected by being installed in the connecting frame through the first bolt, thereby meeting the installation and use of the crown-shaped cage body of the bearing.

[0024] 2. The utility model provides a crown-shaped retainer body. After installing the crown-shaped retainer body on the bearing, in order to avoid inconvenience in lubricating the bearing balls, the personnel can inject the lubricating oil required by the bearing into the cavity of the crown-shaped retainer body through the liquid inlet pipe for storage. After storage, the lubricating oil stored in the crown-shaped retainer body can be discharged through the liquid outlet hole, so that the lubricating oil is discharged into the ball pocket through the liquid outlet hole, avoiding the inconvenience caused by disassembling the crown-shaped retainer body to add lubricating oil, thereby meeting the requirement of adding lubricating oil to the bearing.

[0025] 3. The utility model provides screw rod one and screw rod two. After the personnel install the crown-shaped retainer body on the bearing, in order to avoid looseness between the outer ring one, the outer ring two and the crown-shaped retainer body, the personnel limit the limit block one by the nut pair. After the limit block one is installed in the groove one, the personnel can rotate the nut one to limit the limit block one by spiral movement, so that the limit block one is clamped in the groove one, and limit the limit block two by the nut two. After the limit block two is installed in the groove two, the personnel can rotate the nut two to limit the limit block two by spiral movement, so that the limit block two is clamped in the groove two, so that the outer ring one, the outer ring two and the crown-shaped retainer body can be limited for the second time by the connection between the screw rod one, the screw two, the limit block one and the limit block two, so as to avoid loosening and expansion caused by friction after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0027] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the utility model when viewed from above;

[0029] Figure 4 It is a schematic diagram of the side structure of the crown-shaped cage body of the utility model;

[0030] Figure 5 It is an enlarged structural schematic diagram of the ball bag of the utility model;

[0031] Figure 6 It is a schematic diagram of the structure of the outer ring of the utility model from one side.

[0032] In the figure: 1. Outer ring one; 2. Crown cage body; 3. Bolt one; 4. Groove one; 5. Screw one; 6. Limit block one; 7. Nut one; 8. Liquid inlet pipe; 9. Connecting frame; 10. Ball pocket; 11. Outer ring two; 12. Groove two; 13. Nut two; 14. Screw two; 15. Limit block two; 16. Liquid outlet hole; 17. Bolt two. DETAILED DESCRIPTION

[0033] 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.

[0034] Embodiment 1

[0035] like Figure 1-Figure 6 As shown, the utility model provides a crown-shaped cage for a bearing, comprising an outer ring 1, a crown-shaped cage body 2, a screw 5, an outer ring 2 11 and a screw 2 14.

[0036] The inner walls of the outer ring 1 and the outer ring 2 11 are both installed with a crown-shaped cage body 2;

[0037] A liquid inlet pipe 8 is embedded and fixed on the crown retainer body 2;

[0038] The top end surfaces of the outer ring 1 and the outer ring 2 11 are both provided with a groove 1 4, and the bottom end surfaces of the outer ring 1 and the outer ring 2 11 are both provided with a groove 2 12;

[0039] Both ends of the screw rod 5 are sleeved with a limit block 6, and the limit block 6 is sleeved in the groove 4;

[0040] Both ends of the second screw rod 14 are sleeved with the second limit block 15, and the second limit block 15 is sleeved in the second groove 12;

[0041] A ball pocket 10 is sleeved inside the crown-shaped retainer body 2 .

[0042] A connecting frame 9 is welded on the crown retainer body 2, and a bolt 3 is threadedly installed in the connecting frame 9. A bolt 3 is threadedly installed through the connecting frame 9, so that the bolt 3 connects the two sets of crown retainer bodies 2, and nuts can be installed on the bolt 3 for tightening.

[0043] A bolt 17 is threadedly installed in the ball pocket 10, and the bolt 17 is threadedly installed in the crown-shaped retainer body 2. The bolt 17 is threadedly installed in the crown-shaped retainer body 2, so that the ball pocket 10 can be installed in the crown-shaped retainer body 2.

[0044] Based on Example 1: When personnel install the crown retainer body 2 on the bearing, they can install the crown retainer body 2 on the bearing through the ball pocket 10. During installation, the ball pockets 10 can be respectively sleeved in the crown retainer body 2 for installation. During installation, personnel can thread bolt 2 17 in the ball pocket 10 and the crown retainer body 2, so that the ball pocket 10 can be connected to the crown retainer body 2, thereby satisfying the installation of the ball pocket 10, and the ball pocket 10 can be disassembled separately by reverse rotation of bolt 2 17, thereby avoiding replacement of a single ball pocket 10 after wear and damage, and avoiding overall replacement after wear that affects later use, and the outer ring 1, outer ring 2 11 and the crown retainer body 2 can be connected by bolt 1 3 installed in the connecting frame 9.

[0045] Embodiment 2

[0046] like Figure 1-Figure 6 As shown, the present invention provides a crown-shaped cage for a bearing. Compared with the first embodiment, the present embodiment further includes: an outer ring 1, a crown-shaped cage body 2, a screw 1 5, an outer ring 2 11 and a screw 2 14.

[0047] The inner walls of the outer ring 1 and the outer ring 2 11 are both installed with a crown-shaped cage body 2;

[0048] A liquid inlet pipe 8 is embedded and fixed on the crown retainer body 2;

[0049] The top end surfaces of the outer ring 1 and the outer ring 2 11 are both provided with a groove 1 4, and the bottom end surfaces of the outer ring 1 and the outer ring 2 11 are both provided with a groove 2 12;

[0050] Both ends of the screw rod 5 are sleeved with a limit block 6, and the limit block 6 is sleeved in the groove 4;

[0051] Both ends of the second screw rod 14 are sleeved with the second limit block 15, and the second limit block 15 is sleeved in the second groove 12;

[0052] A ball pocket 10 is sleeved inside the crown-shaped retainer body 2 .

[0053] A cavity is provided in the crown-shaped retainer body 2 , and the crown-shaped retainer body 2 can store the lubricating oil entering therein.

[0054] The liquid inlet pipe 8 is connected to the liquid of the cavity of the crown retainer body 2, and a sealing cover is installed on the liquid inlet pipe 8 through a thread. The lubricating oil required by the bearing can be injected into the cavity of the crown retainer body 2 for storage through the liquid inlet pipe 8, and after injection, the sealing cover can be installed on the liquid inlet pipe 8 for closing.

[0055] Both the ball pocket 10 and the crown retainer body 2 are provided with a liquid outlet 16, and the ball pocket 10 and the crown retainer body 2 are connected through the liquid outlet 16. The lubricating oil stored in the crown retainer body 2 can be discharged through the liquid outlet 16, so that the lubricating oil is discharged into the ball pocket 10 through the liquid outlet 16.

[0056] There are four grooves 1 4 and grooves 2 12 in total, and the four grooves 1 4 and grooves 2 12 are equidistantly and symmetrically distributed relative to the outer ring 1 and the outer ring 2 11. There are four grooves 1 4 and grooves 2 12 in total, so that the four limit blocks 1 6 and limit blocks 2 15 can be placed in the grooves 1 4 and grooves 2 12.

[0057] Based on Example 2: After installing the crown retainer body 2 on the bearing, in order to avoid inconvenience in lubrication of the bearing balls, the personnel can inject the lubricating oil required by the bearing into the cavity of the crown retainer body 2 through the liquid inlet pipe 8 for storage. After storage, the lubricating oil stored in the crown retainer body 2 can be discharged through the liquid outlet hole 16, so that the lubricating oil is discharged into the ball pocket 10 through the liquid outlet hole 16, avoiding the inconvenience caused by disassembling the crown retainer body 2 and adding lubricating oil.

[0058] Embodiment 3

[0059] like Figure 1-Figure 6 As shown, the present invention provides a crown-shaped cage for a bearing. Compared with the second embodiment, the present embodiment further includes: an outer ring 1, a crown-shaped cage body 2, a screw 1 5, an outer ring 2 11 and a screw 2 14.

[0060] The inner walls of the outer ring 1 and the outer ring 2 11 are both installed with a crown-shaped cage body 2;

[0061] A liquid inlet pipe 8 is embedded and fixed on the crown retainer body 2;

[0062] The top end surfaces of the outer ring 1 and the outer ring 2 11 are both provided with a groove 1 4, and the bottom end surfaces of the outer ring 1 and the outer ring 2 11 are both provided with a groove 2 12;

[0063] Both ends of the screw rod 5 are sleeved with a limit block 6, and the limit block 6 is sleeved in the groove 4;

[0064] Both ends of the second screw rod 14 are sleeved with the second limit block 15, and the second limit block 15 is sleeved in the second groove 12;

[0065] A ball pocket 10 is sleeved inside the crown-shaped retainer body 2 .

[0066] Both ends of the screw rod 5 are threadedly installed with nuts 7, and the nuts 7 limit the limit block 6. After the limit block 6 is limited by the nuts 7, the person can rotate the nuts 7 to spirally move forward to limit the limit block 6, so that the limit block 6 is clamped in the groove 4.

[0067] Both ends of the screw rod 14 are threadedly installed with nuts 13, and the nuts 13 limit the limit block 15. After the limit block 15 is limited by the nuts 13 and the limit block 15 is installed in the groove 12, the personnel can rotate the nuts 13 to spirally move forward to limit the limit block 15, so that the limit block 15 is clamped in the groove 12.

[0068] Based on Example 3: After installing the crown-shaped retainer body 2 on the bearing, in order to avoid looseness between the outer ring 1, the outer ring 2 11 and the crown-shaped retainer body 2, the personnel limit the limit block 6 through the nut 17, so that the limit block 6 is installed in the groove 14, and the personnel can rotate the nut 17 to spirally move forward to limit the limit block 6, so that the limit block 6 is clamped in the groove 14, and limit the limit block 2 15 through the nut 2 13, so that the limit block 2 15 is installed in the groove 2 12, and the personnel can rotate the nut 2 13 to spirally move forward to limit the limit block 2 15, so that the limit block 2 15 is clamped in the groove 2 12, so that the outer ring 1, the outer ring 2 11 and the crown-shaped retainer body 2 can be limited for the second time by the connection between the screw 15, the screw 2 14, the limit block 6 and the limit block 2 15.

[0069] 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 crown-shaped cage for a bearing, comprising an outer ring 1 (1), a crown-shaped cage body (2), a screw 1 (5), an outer ring 2 (11) and a screw 2 (14), characterized in that: The inner walls of the outer ring one (1) and the outer ring two (11) are both mounted with a crown-shaped retainer body (2); A liquid inlet pipe (8) is embedded and fixed on the crown-shaped retainer body (2); The top end surfaces of the outer ring one (1) and the outer ring two (11) are both provided with a groove one (4), and the bottom end surfaces of the outer ring one (1) and the outer ring two (11) are both provided with a groove two (12); Both ends of the screw rod 1 (5) are sleeved with a limit block 1 (6), and the limit block 1 (6) is sleeved in the groove 1 (4); Both ends of the second screw rod (14) are sleeved with the second limit block (15), and the second limit block (15) is sleeved in the second groove (12); A ball pocket (10) is sleeved inside the crown-shaped retainer body (2).

2. A crown-shaped retainer for a bearing according to claim 1, characterized in that: A cavity is provided in the crown-shaped retainer body (2).

3. A crown-shaped retainer for a bearing according to claim 2, characterized in that: The liquid inlet pipe (8) is in liquid communication with the cavity of the crown retainer body (2), and a sealing cover is threadedly mounted on the liquid inlet pipe (8).

4. A crown-shaped retainer for a bearing according to claim 1, characterized in that: A connecting frame (9) is welded to the crown-shaped retaining frame body (2), and a bolt (3) is threadedly installed in the connecting frame (9).

5. A crown-shaped retainer for a bearing according to claim 1, characterized in that: Nuts (7) are installed at both ends of the screw rod (5) through threads, and the nut (7) limits the position of the limit block (6).

6. A crown-shaped retainer for a bearing according to claim 1, characterized in that: Both ends of the second screw rod (14) are threadedly mounted with a second nut (13), and the second nut (13) limits the position of the second limit block (15).

7. A crown-shaped retainer for a bearing according to claim 1, characterized in that: The ball pocket (10) and the crown-shaped retainer body (2) are both provided with a liquid outlet hole (16), and the ball pocket (10) and the crown-shaped retainer body (2) are connected via the liquid outlet hole (16).

8. A crown-shaped retainer for a bearing according to claim 1, characterized in that: A second bolt (17) is threadedly installed in the ball pocket (10), and the second bolt (17) is threadedly installed in the crown-shaped retainer body (2).

9. A crown-shaped retainer for a bearing according to claim 1, characterized in that: There are four grooves one (4) and two (12) in total, and the four grooves one (4) and two (12) are symmetrically distributed with equal distances relative to the outer ring one (1) and the outer ring two (11).

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