Anti-play retainer of cylindrical roller bearing

Abstract

The utility model discloses an anti-play retainer of a cylindrical roller bearing, which comprises a retainer body, the retainer body consists of a left ring, a right ring and a plurality of beam bodies for connecting the left ring and the right ring, pockets are formed between adjacent beam bodies, each beam body consists of a central part and two end parts which are connected, and the radial section of each beam body is arc-shaped. The center of the beam body protrudes outwards in the radial direction of the frame body, first locking blocks are arranged on the two side walls of the center of the beam body, the two ends of the beam body protrude inwards in the radial direction of the frame body, and second locking blocks are arranged on the two side walls of the two ends of the beam body. The first locking blocks and the second locking blocks are arranged in the direction of the adjacent pockets in a protruding mode, each first locking block and the two second locking blocks on the same horizontal plane are combined to be distributed in a triangular position, and the problems that lubricating of a brass retainer is not smooth, heat dissipation is not prone to occurring, and the running efficiency of a bearing is affected due to the low anti-moving performance of a roller are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing retainers, in particular to an anti-movement retainer of a cylindrical roller bearing. Background Art

[0002] Traditional cylindrical roller bearings usually use machined solid brass cages. Because the brass cage is a solid structure, its lubrication is not smooth and it is not easy to dissipate heat, which affects the bearing operation efficiency and heat dissipation efficiency. At the same time, because the brass cage adopts a solid structure as a whole, its preparation cost will be too high. Currently, the cage is designed with locking blocks for limiting the movement of rollers to prevent the rollers from moving or falling out of the cage. However, the locking blocks in the prior art are usually set on both sides of the pocket and contact with the center point of the roller side wall. The locking blocks are set in this position, which not only has low efficiency in preventing the rollers from moving, but also affects the efficiency of installing the rollers into the pockets. It can even affect the roller operation efficiency due to its contact with the center point of the roller side wall. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the utility model provides an anti-movement cage for a cylindrical roller bearing, which solves the problems in the existing technology that the brass cage has poor lubrication, is difficult to dissipate heat, and has low anti-movement performance of the rollers, which affects the bearing operation efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides an anti-movement retaining frame for a cylindrical roller bearing, including a frame body, wherein the frame body is composed of a left ring, a right ring and a plurality of beam bodies for connecting the left ring and the right ring, pockets are formed between adjacent beam bodies, the beam body is composed of a center portion and two end portions connected to each other, and the radial cross-section of the beam body is arranged in an arc shape, the center portion of the beam body is bulged radially outward along the frame body, first locking blocks are arranged on both side walls of the center portion of the beam body, both ends of the beam body are bulged radially inward along the frame body, and second locking blocks are arranged on both side walls of both end portions of the beam body, the first locking blocks and the second locking blocks are both bulged toward the direction of their respective adjacent pockets, and each of the first locking blocks is combined with two second locking blocks on the same horizontal plane to form a triangular position distribution.

[0005] The advantages of adopting the above technical scheme are as follows: the bearing comprises an outer ring, an inner ring and a plurality of rollers rollingly arranged between the outer ring and the inner ring, and the rollers rollingly arranged in the pockets, wherein the central part of the beam body bulges radially outward along the frame body, and both ends of the beam body are bulged radially inwardly along the frame body, so that the overall radial cross-section of the beam body is approximately arc-shaped, and a first locking block is arranged on both side walls of the central part of the beam body, and a second locking block is arranged on both side walls of both ends of the beam body, that is, a first locking block and two second locking blocks are present in the same horizontal plane of both side walls of the beam body, and the positions of the first locking block and the two second locking blocks in the same horizontal plane are distributed in a triangular shape, that is, the first locking block and the two second locking blocks are in contact with the side walls of the roller and the contact points are distributed in a triangular position, so as to achieve the maximum anti-movement performance of the roller, that is, the setting of the first locking block prevents the roller from moving radially along the frame. The movement phenomenon is prevented by setting two second locking blocks to prevent the roller from sliding and moving horizontally in the pocket hole, and then the first locking block and the second locking block are used to limit the roller, so as to avoid the high-frequency movement phenomenon when the roller rolls at high speed in the pocket hole, and then the bearing operation efficiency is affected; and in the above-mentioned technology, the grease on the surface of the roller can be evenly coated when the first locking block and the second locking block are in contact with the roller, so as to improve the lubrication efficiency of the lubricating oil on the roller, and at the same time, the center part of the beam body bulges radially outward along the frame body, and when the retaining frame is installed in the external bearing, a gap is left between the bottom of the center part of the beam body and the outer peripheral wall of the inner ring, and the gap will be connected with the adjacent pocket holes on both sides, so that the lubricating grease can flow into the pocket hole through the gap, so as to realize the inheritance of the lubricating grease, and then improve the lubrication efficiency of the lubricating grease in the bearing to the roller.

[0006] The utility model is further configured as follows: an oil storage cavity is annularly provided on the left ring and the right ring, the oil storage cavity is filled with solid lubricating grease, an oil outlet hole is provided on the outer wall of each second locking block, each of the oil outlet holes is connected to the adjacent oil storage cavity, and each of the oil outlet holes is connected to the adjacent pocket hole.

[0007] The benefit of adopting the above technical solution is that: in the above technology, solid lubricating grease is arranged in the oil storage cavity. When the bearing runs at high speed, its internal temperature rises, which causes part of the solid lubricating grease to be converted into liquid grease and flow out through the oil outlet hole into the pocket hole, thereby achieving lubrication of the roller.

[0008] The utility model is further arranged that: a coated ball is rolled in the oil outlet hole, the diameter of the opening where the oil outlet hole is connected to the pocket hole is larger than the diameter of the coated ball, the diameter of the opening where the oil outlet hole is connected to the oil storage chamber is larger than the diameter of the coated ball, and the coated ball is partially exposed from the oil outlet hole to the pocket hole.

[0009] The benefits of adopting the above technical solution are: the coating ball in the above technology is arranged to contact partially the roller surface when the roller rolls in the pocket, and drive the lubricating grease to be coated on the roller surface when the roller rolls violently, thereby achieving lubrication and coating of the roller; the diameter of the opening where the oil outlet hole is connected to the pocket in the above technology is larger than the diameter of the coated ball, and the diameter of the opening where the oil outlet hole is connected to the oil storage chamber is larger than the diameter of the coated ball, so that the coated ball is partially exposed from the oil outlet hole to the pocket. The arrangement of the above technology prevents the coated ball from escaping from the oil outlet hole and affecting the bearing operation efficiency.

[0010] The utility model is further provided with: a fat storage cotton is arranged in the oil outlet hole.

[0011] The advantages of adopting the above technical solution are as follows: the provision of the grease storage cotton in the above technology prevents excessive grease from flowing out of the oil outlet hole, resulting in grease throwing and grease leakage in the bearing, thereby improving the grease coating efficiency and replenishment efficiency.

[0012] The utility model further provides that: the outer wall of the first locking block is connected to the beam body with a smooth curved surface to form a first arc surface, and the outer wall of the second locking block is connected to the beam body with a smooth curved surface to form a second arc surface.

[0013] The benefits of adopting the above technical solution are: the setting of the first arc surface and the second arc surface in the above technology is used to improve the smoothness of the rolling of the roller in the pocket, and at the same time, the setting of the first arc surface and the second arc surface reduces the damage caused to the roller surface by collision, and the first arc surface and the second arc surface can guide the flow direction of grease, thereby improving the efficiency of lubricating grease coating on the roller surface, and the grease can also be coated on the roller surface through the local contact between the first arc surface and the second arc surface and the roller, so as to improve the uniformity of grease distribution on the roller surface, thereby improving the rolling efficiency of the roller, and improving the bearing operation efficiency in disguise.

[0014] The utility model is further configured that: the top wall and the bottom wall of the first locking block are connected to the first arc surface in a smooth curved surface and form a first arc chamfer, and the top wall and the bottom wall of the second locking block are connected to the second arc surface in a smooth curved surface and form a second arc chamfer.

[0015] The benefits of adopting the above technical solution are: the setting of the first arc chamfer and the second arc chamfer in the above technology is used to improve the smoothness of the rolling of the roller in the pocket. At the same time, the setting of the first arc chamfer and the second arc chamfer reduces the damage caused to the roller surface by collision, and improves the efficiency of applying lubricating grease to the roller surface, thereby improving the roller rolling efficiency and improving the bearing operation efficiency in disguise. At the same time, the setting of the first arc chamfer and the second arc chamfer facilitates the pressing of the roller into the pocket, thereby improving the assembly efficiency.

[0016] The utility model is further configured that: the frame is made of carbon steel.

[0017] The benefits of adopting the above technical solution are: in the above technology, the frame is made of carbon steel, so that the overall material of the left ring, the right ring and the beam body is relatively light. The current specific gravity of brass is 8.5, while the specific gravity of carbon steel is 7.8. Therefore, compared with the technology of using brass to prepare the retaining frame in the existing technology, this technology can greatly reduce the weight of the retaining frame, thereby improving the operating efficiency of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional simplified view of the utility model;

[0019] Figure 2 It is a partially enlarged three-dimensional view of the utility model;

[0020] Figure 3 It is a cross-sectional view of the utility model. DETAILED DESCRIPTION

[0021] The utility model provides an anti-movement retainer for a cylindrical roller bearing, comprising a frame body 1, wherein the frame body 1 is composed of a left ring 11, a right ring 12 and a plurality of beam bodies 2 for connecting the left ring 11 and the right ring 12, wherein pockets 13 are formed between adjacent beam bodies 2, wherein the beam body 2 is composed of a central portion 21 and two end portions 22 connected to each other, and the radial cross section of the beam body 2 is arranged in an arc shape, wherein the central portion 21 of the beam body 2 is raised radially outwardly along the frame body 1, and first locking blocks 3 are arranged on both side walls of the central portion 21 of the beam body 2, wherein the beam body The two ends 22 of the beam body 2 are both raised radially inwardly along the frame body 1, and the two side walls of the two ends 22 of the beam body 2 are both provided with second locking blocks 4. The first locking blocks 3 and the second locking blocks 4 are both raised toward the respective adjacent pocket holes 13. Each of the first locking blocks 3 is combined with two second locking blocks 4 on the same horizontal plane to form a triangular position distribution. The left ring 11 and the right ring 12 are both annularly provided with oil storage cavities 5, and the oil storage cavities 5 are filled with solid lubricating grease. Each of the second locking blocks 4 is provided with an oil outlet hole 41 on the outer wall. Each The oil outlet holes 41 are connected to the adjacent oil storage chambers 5, each of the oil outlet holes 41 is connected to the adjacent pockets 13, a coating ball 42 is rolled in the oil outlet holes 41, the diameter of the opening where the oil outlet holes 41 are connected to the pockets 13 is larger than the diameter of the coating ball 42, the diameter of the opening where the oil outlet holes 41 are connected to the oil storage chamber 5 is larger than the diameter of the coating ball 42, the coating ball 42 is partially exposed from the oil outlet holes 41 to the pockets 13, and the oil outlet holes 41 are provided with Fat storage cotton, the outer wall of the first locking block 3 is connected to the beam body 2 in a smooth curved surface and forms a first arc surface 31, the outer wall of the second locking block 4 is connected to the beam body 2 in a smooth curved surface and forms a second arc surface 44, the top wall and the bottom wall of the first locking block 3 are connected to the first arc surface 31 in a smooth curved surface and form a first arc chamfer 32, the top wall and the bottom wall of the second locking block 4 are connected to the second arc surface 44 in a smooth curved surface and form a second arc chamfer 45, and the frame 1 is made of carbon steel.

[0022] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. An anti-movement cage for a cylindrical roller bearing, comprising a frame body, the frame body being composed of a left ring, a right ring and a plurality of beam bodies for connecting the left ring and the right ring, pockets being formed between adjacent beam bodies, characterized in that: The beam body is composed of a central part and two end parts connected, and the radial cross-section of the beam body is arranged in an arc shape. The central part of the beam body is bulged radially outward along the frame body, and first locking blocks are arranged on both side walls of the central part of the beam body. Both end parts of the beam body are bulged radially inward along the frame body, and second locking blocks are arranged on both side walls of both end parts of the beam body. The first locking blocks and the second locking blocks are both protruded in the direction of their respective adjacent pockets, and each of the first locking blocks is combined with two second locking blocks on the same horizontal plane to form a triangular position distribution.

2. The anti-movement retainer of a cylindrical roller bearing according to claim 1, characterized in that: The left ring and the right ring are both provided with an oil storage cavity in an annular direction, and the oil storage cavity is filled with solid lubricating grease. Each of the second locking blocks is provided with an oil outlet hole on its outer wall, and each of the oil outlet holes is connected to the adjacent oil storage cavity, and each of the oil outlet holes is connected to the adjacent pocket hole.

3. The anti-movement cage of a cylindrical roller bearing according to claim 2, characterized in that: A coated ball is rolled in the oil outlet hole, the diameter of the opening where the oil outlet hole is connected to the pocket hole is larger than the diameter of the coated ball, the diameter of the opening where the oil outlet hole is connected to the oil storage chamber is larger than the diameter of the coated ball, and the coated ball is partially exposed from the oil outlet hole to the pocket hole.

4. The anti-movement retainer of a cylindrical roller bearing according to claim 2, characterized in that: The oil outlet hole is provided with fat storage cotton.

5. The anti-movement retainer of a cylindrical roller bearing according to claim 1, characterized in that: The outer wall of the first locking block is connected to the beam body in a smooth curved surface and forms a first arc surface, and the outer wall of the second locking block is connected to the beam body in a smooth curved surface and forms a second arc surface.

6. The anti-movement cage of a cylindrical roller bearing according to claim 5, characterized in that: The top wall and the bottom wall of the first locking block are connected to the first arc surface in a smooth curved surface and form a first arc chamfer, and the top wall and the bottom wall of the second locking block are connected to the second arc surface in a smooth curved surface and form a second arc chamfer.

7. The anti-movement retainer of a cylindrical roller bearing according to claim 1, characterized in that: The frame is made of carbon steel.

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