Split type cylindrical roller bearing retainer

Abstract

The utility model discloses a split type cylindrical roller bearing retainer which comprises a first retainer body and a second retainer body, the first retainer body is detachably connected with the second retainer body, and each of the first retainer body and the second retainer body comprises an annular part and inserting parts which are uniformly distributed on one side of the annular part in the circumferential direction; the retainer comprises a first frame body and a second frame body, the first frame body is provided with a plurality of inserting parts, an inserting groove is formed between every two adjacent inserting parts, each inserting part is provided with an inserting end, the inserting parts of the first frame body and the inserting parts of the second frame body are arranged in a staggered mode, the inserting ends of the first frame body are matched with the inserting grooves of the second frame body in an inserting mode, and the retainer is convenient to disassemble and assemble, stable in connection and simple in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a split cage for cylindrical roller bearings. Background Art

[0002] The cage is one of the important components in the bearing, generally used for limiting the rollers to prevent the rollers from deviating from their working positions when rotating in the bearing. The existing bearing cages are of integral and split types. The existing split cages are connected by hinging, clamping or plugging two independent half cages. The existing split cage connected by plugging has a number of plugging grooves and plugging parts circumferentially arranged on one side of the cage body. The plugging part uses a single convex block to be in interference fit with the plugging groove to meet the fixation after plugging. In order to make the connection more stable, the existing split cage also uses screw connection for fixation after plugging. The existing connection method of this split cage is complex, with low connection stability and inconvenient disassembly and assembly. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a split cage for cylindrical roller bearings, which is convenient for disassembly and assembly, has stable connection and simple structure.

[0004] To achieve the above object, the utility model provides a split cage for cylindrical roller bearings, including a first cage body and a second cage body. The first cage body and the second cage body are detachably connected. Both the first cage body and the second cage body include an annular part and plugging parts circumferentially and evenly arranged on one side of the annular part. A plugging groove is arranged between two adjacent plugging parts. The plugging part has a plugging end. The plugging parts of the first cage body and the second cage body are arranged alternately. The plugging end of the first cage body is in plugging fit with the plugging groove of the second cage body.

[0005] The effects that can be produced by adopting the above technical solution are as follows: The detachable connection of the first cage body and the second cage body can make the manufacturing cost of the cage lower. By arranging the cooperation of the plugging parts and the plugging grooves, and both the first cage body and the second cage body are provided with plugging parts and plugging grooves, and the plugging parts and the plugging grooves are circumferentially and evenly arranged along the annular part, it can be connected more comprehensively, improve the connection stability, increase the strength of the cage, and the connection method is simple and the disassembly and assembly are convenient.

[0006] The present utility model is further provided that: the insertion end is provided with a first convex block, one side wall of the first convex block is inclined towards the axis of the convex block to form a first guiding surface, the other side wall of the first convex block is inclined in the opposite direction of the axis of the convex block to form a first limiting surface, the first guiding surface and the first limiting surface are adjacently arranged, a first limiting block is arranged in the insertion slot, one side of the first limiting block is provided with a second guiding surface for sliding cooperation with the first guiding surface, the other side of the first limiting block is provided with a second limiting surface, after the insertion end of the first frame body is inserted into the insertion slot of the second frame body, the first limiting surface of the first convex block abuts against the second limiting surface of the first limiting block, and both the first frame body and the second frame body are elastic frame bodies.

[0007] The effects that can be achieved by adopting the above technical solution are: by providing the first convex block and the second convex block to cooperate and abut against each other, it is not easy for the first frame body and the second frame body to separate after connection. By providing the first guiding surface and the first limiting surface on the first convex block, and the second guiding surface and the second limiting surface on the second convex block, when the first frame body and the second frame body are combined and connected, the first guiding surface is placed corresponding to the second guiding surface and slides along the direction of the guiding surface, so that the first limiting surface abuts against the second limiting surface. By providing elastic frame bodies, the first frame body and the second frame body can be installed by pressing, which is more convenient for disassembly and assembly. When a person skilled in the art places the first guiding surface corresponding to the second guiding surface and presses hard, the insertion end on the first frame body / second frame body deforms and is inserted into the insertion slot. At this time, the first limiting surface and the second limiting surface can abut against each other, and the inclination of both the first guiding surface and the second guiding surface can make the pressing more labor-saving, and the deformation amplitude required will also become smaller. By setting the first limiting surface and the second limiting surface as shoe surfaces, the contact area between the first limiting surface and the second limiting surface can be increased, the friction can be increased, and the connection is more stable and not easy to loosen, and the structure is simple and the disassembly and assembly are convenient.

[0008] The present utility model is further provided that: the first limiting surface extends to form a first transition surface, the second guiding surface extends to form a second transition surface, and the first transition surface and the second transition surface are in sliding cooperation.

[0009] The effects that can be achieved by adopting the above technical solution are: by providing the first transition surface and the second transition surface to cooperate, a transition stage can be provided for the first frame body and the second frame body after connection and pressing deformation, which is not easy to damage the frame body and improves the service life of the frame body.

[0010] The present utility model is further provided that: a fixing groove is provided at the position of the annular portion corresponding to the insertion slot, the insertion slots are circumferentially and uniformly arranged on the outer peripheral wall of the annular portion, the fixing grooves are circumferentially and uniformly arranged on the inner peripheral wall of the annular portion, the insertion end is further provided with a second convex block, and the second convex block is in insertion cooperation with the fixing groove.

[0011] The effects that can be achieved by adopting the above technical solution are as follows: By providing the fixed slots, when the first frame body and the second frame body are combined and connected, they can be fixed more stably. Moreover, the fixed slots are evenly distributed circumferentially along the annular portion, so that the positions where the first frame body and the second frame body are fixed are more comprehensive after connection, forming circumferential fixation and having higher connection strength.

[0012] The present utility model is further provided with: a first limiting wall and a second limiting wall. A plurality of first ribs are evenly arranged on the first limiting wall, and a plurality of second ribs are evenly arranged on the second limiting wall at positions corresponding to the first ribs. After the first limiting wall and the second limiting wall are abutted against each other, the first ribs and the second ribs are abutted against each other in a staggered manner.

[0013] The effects that can be achieved by adopting the above technical solution are as follows: By the staggered abutment of the first ribs and the second ribs, the contact area and friction force between the two limiting walls can be increased. The ribs can serve as local reinforcing ribs to improve the load-bearing capacity of the limiting walls. Especially when bearing bending or shear forces, the first limiting wall and the second limiting wall are more easily aligned and positioned during the assembly process, and the connection is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural view of the insertion slot in the embodiment of the present utility model;

[0015] Figure 2 It is a schematic structural view of the insertion end in the embodiment of the present utility model;

[0016] Figure 3 It is a partial cross-sectional view of the embodiment of the present utility model;

[0017] Figure 4 It is a perspective view of the embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The implementation example of a split cylindrical roller bearing cage of the present utility model is shown in the figure, and it includes a first frame body 1 and a second frame body 2. The first frame body 1 and the second frame body 2 are detachably connected. Both the first frame body 1 and the second frame body 2 include an annular portion 3 and a plug-in portion 4 circumferentially and evenly arranged on one side of the annular portion 3. A plug-in slot 5 is arranged between two adjacent plug-in portions 4. The plug-in portion 4 has a plug-in end 41. The plug-in portions 4 of the first frame body 1 and the second frame body 2 are arranged staggeredly. The plug-in end 41 of the first frame body 1 is in plug-in fit with the plug-in slot 5 of the second frame body 2. The detachable connection of the first frame body 1 and the second frame body 2 can make the cost of manufacturing the cage lower. By setting the cooperation of the plug-in portion 4 and the plug-in slot 5, and both the first frame body 1 and the second frame body 2 are provided with the plug-in portion 4 and the plug-in slot 5, and the plug-in portion 4 and the plug-in slot 5 are both circumferentially and evenly arranged along the annular portion 3, it can be connected more comprehensively, improve the connection stability, increase the strength of the cage, and the connection method is simple and convenient for disassembly and assembly;The plug-in end 41 is provided with a first convex block 42. One side wall of the first convex block 42 is inclined towards the axis of the convex block to form a first guiding surface 43, and the other side wall of the first convex block 42 is inclined in the opposite direction of the axis of the convex block to form a first limiting surface 44. The first guiding surface 43 and the first limiting surface 44 are adjacently arranged. A first limiting block 51 is arranged in the plug-in slot 5. One side of the first limiting block 51 is provided with a second guiding surface 52 for sliding cooperation with the first guiding surface 43, and the other side of the first limiting block 51 is provided with a second limiting surface 53. After the plug-in end 41 of the first frame body 1 is plugged into the plug-in slot of the second frame body 2, the first limiting surface 44 of the first convex block 42 abuts against the second limiting surface 53 of the first limiting block 51. Both the first frame body 1 and the second frame body 2 are elastic frame bodies. By setting the first convex block 42 and the second convex block 46 to cooperate and abut against each other, it is not easy for the first frame body 1 and the second frame body 2 to separate after connection. By arranging the first guiding surface 43 and the first limiting surface 44 on the first convex block 42, and arranging the second guiding surface 52 and the second limiting surface 53 on the second convex block 46, when the first frame body 1 and the second frame body 2 are combined and connected, the first guiding surface 43 is placed corresponding to the second guiding surface 52 and slides along the direction of the guiding surface, so that the first limiting surface 44 abuts against the second limiting surface 53. By setting elastic frame bodies, the first frame body 1 and the second frame body 2 can be installed by pressing, and the disassembly and assembly are more convenient. After those skilled in the art place the first guiding surface 43 corresponding to the second guiding surface 52 and press hard, the plug-in end 41 on the first frame body 1 / second frame body 2 deforms and is plugged into the plug-in slot 5. At this time, the first limiting surface 44 and the second limiting surface 53 can abut against each other, and the inclination of both the first guiding surface 43 and the second guiding surface 52 can make the pressing more labor-saving, and the deformation amplitude required will also become smaller. By setting the first limiting surface 44 and the second limiting surface 53 as shoe surfaces, the contact area between the first limiting surface 44 and the second limiting surface 53 can be increased, the friction can be increased, and the connection is more stable and not easy to loosen, and the structure is simple and the disassembly and assembly are convenient; The first limiting surface 44 extends to form a first transition surface 45, and the second guiding surface 52 extends to form a second transition surface 54. The first transition surface 45 and the second transition surface 54 are in sliding cooperation. By arranging the first transition surface 45 and the second transition surface 54 to cooperate, a transition stage can be provided after the first frame body 1 and the second frame body 2 are deformed during connection and pressing, which is not easy to damage the frame body and improves the service life of the frame body;A fixing groove 6 is provided at the position of the annular portion 3 corresponding to the insertion slot 5. The insertion slots 5 are circumferentially and uniformly arranged on the outer peripheral wall of the annular portion 3. The fixing grooves 6 are circumferentially and uniformly arranged on the inner peripheral wall of the annular portion 3. The insertion end 41 is further provided with a second protrusion 46, and the second protrusion 46 is in plug-in fit with the fixing groove 6. By providing the fixing groove 6, the first frame body 1 and the second frame body 2 can be more stably fixed when combined and connected. Moreover, the fixing grooves 6 are circumferentially and uniformly arranged along the circumference of the annular portion 3, so that the positions where the first frame body 1 and the second frame body 2 are fixed after connection are more comprehensive to form circumferential fixation, and the connection strength is higher. A plurality of first ribs 441 are uniformly arranged on the first limiting wall, and a plurality of second ribs 531 are uniformly arranged on the second limiting wall corresponding to the positions of the first ribs 441. After the first limiting wall and the second limiting wall are abutted, the first ribs 441 and the second ribs 531 are abutted in a staggered manner. By the staggered abutment of the first ribs 441 and the second ribs 531, the contact area and friction force between the two limiting walls can be increased. The ribs can be used as local reinforcing ribs to improve the load-bearing capacity of the limiting walls. Especially when bearing bending or shear forces, the first limiting wall and the second limiting wall are more easily aligned and positioned during the assembly process, and the connection is more stable. When implementing this solution, those skilled in the art can first horizontally place one of the first frame body 1 / second frame body 2, place the insertion end 41 on the other frame body corresponding to the insertion slot 5, and align the first guiding surface 43 and the second guiding surface 52 so that it can slide along the guiding surface by pressing. After the first guiding surface 43 and the second guiding surface 52 are aligned, the first limiting surface 44 and the second limiting surface 53 can also be correspondingly abutted after displacement after those skilled in the art press the first frame body 1 / second frame body 2, so that the insertion end 41 can be inserted into the insertion slot 5, and the first limiting surface 44 can be in abutting fit with the second limiting surface 53 to prevent the two frame bodies from separating. In this solution, the frame body is a plastic frame body. Plastic has elasticity and is convenient for pressing. In other solutions, other elastic frame bodies can also be used.;

[0019] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A split cylindrical roller bearing cage, comprising a first cage body and a second cage body, the first cage body and the second cage body being detachably connected, characterized in that: Both the first frame body and the second frame body include an annular portion and insertion portions circumferentially and uniformly arranged on one side of the annular portion. An insertion slot is provided between two adjacent insertion portions. The insertion portion has an insertion end. The insertion portions of the first frame body and the second frame body are arranged in an alternating manner, and the insertion end of the first frame body is in insertion fit with the insertion slot of the second frame body.

2. The split cylindrical roller bearing cage according to claim 1, characterized in that: A first convex block is provided at the insertion end. A first guiding surface is inclined towards the axis of the convex block on one side wall of the first convex block, and a first limiting surface is inclined in the opposite direction of the axis of the convex block on the other side wall of the first convex block. The first guiding surface and the first limiting surface are adjacently arranged. A first limiting block is provided in the insertion slot. A second guiding surface for sliding fit with the first guiding surface is provided on one side of the first limiting block, and a second limiting surface is provided on the other side of the first limiting block. After the insertion end of the first frame body is in insertion fit with the insertion slot of the second frame body, the first limiting surface of the first convex block abuts against the second limiting surface of the first limiting block. Both the first frame body and the second frame body are elastic frame bodies.

3. The split cylindrical roller bearing cage according to claim 2, characterized in that: A first transition surface extends from the first limiting surface, and a second transition surface extends from the second guiding surface. The first transition surface and the second transition surface are in sliding fit.

4. A split cylindrical roller bearing cage according to claim 1, characterized in that: A fixing slot is provided at the position of the annular portion corresponding to the insertion slot. The insertion slots are circumferentially and uniformly arranged on the outer peripheral wall of the annular portion, and the fixing slots are circumferentially and uniformly arranged on the inner peripheral wall of the annular portion. A second convex block is further provided at the insertion end, and the second convex block is in insertion fit with the fixing slot.

5. The split cylindrical roller bearing cage according to claim 1, characterized in that: It further includes a first limiting wall and a second limiting wall. A plurality of first convex ribs are uniformly arranged on the first limiting wall, and a plurality of second convex ribs are uniformly arranged on the second limiting wall corresponding to the positions of the first convex ribs. After the first limiting wall and the second limiting wall abut against each other, the first convex ribs and the second convex ribs are offset and abutted against each other.

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