Retainer of cylindrical roller bearing

Abstract

The utility model relates to a retainer of a cylindrical roller bearing. The retainer comprises a retainer ring, the separators are arranged in parallel around the inside of the frame ring; the deformation piece is connected with the separation piece; wherein the deformation piece comprises a convex part which is bent outwards and a concave part which is bent inwards; the convex parts and the concave parts are alternately connected with each other in a reciprocating manner; and the convex part is connected with the separator. The problem that in an existing scheme, a roller can be abraded with a retainer in the rolling process, the roller cannot stably roll, and consequently the roller shakes is solved.

Description

Technical Field

[0001] The utility model relates to the field of bearings, in particular to a retaining frame of a cylindrical roller bearing. Background Art

[0002] When machining the cage of a cylindrical roller bearing, pockets are machined in parallel and at intervals on the cage. When assembling the bearing, the rollers are placed in the pockets, which can evenly space the rollers to avoid mutual interference, allowing the rollers to roll stably along the pockets.

[0003] The shapes of the cages of cylindrical roller bearings are different. They are rigid structures that can separate the rollers from each other without interference. However, the rollers will wear against the cages during rolling, which will increase the size of the pockets, making it impossible for the rollers to roll stably and causing the rollers to shake.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a retainer for a cylindrical roller bearing to solve the problem in the prior art that the rollers and the retainer will wear during the rolling process, the rollers cannot roll stably, and the rollers shake.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A retainer for a cylindrical roller bearing;

[0008] It comprises: a frame ring; a separator, which is arranged in parallel around the frame ring; and a deformable member, which connects the separator; wherein the deformable member comprises a convex portion bent outward and a concave portion bent inward; the convex portion and the concave portion are connected to each other in an alternating reciprocating manner; and the convex portion is connected to the separator.

[0009] A further technical solution is that the recess is in an arc shape that fits the roller.

[0010] A further technical solution is that a protrusion is provided at a position where the concave portion is connected to the convex portion; and the protrusion abuts against a roller.

[0011] A further technical solution is that a reinforcement piece is arranged in the convex portion; and the reinforcement piece is distributed along the roller direction.

[0012] A further technical solution is that a reinforcing edge is provided on the reinforcing member; and the reinforcing edge is embedded in the protrusion.

[0013] A further technical solution is that a diffusely extending elastic edge is provided on the reinforcement; the elastic edge abuts against the recess.

[0014] A further technical solution is that a reinforcing plate is arranged on the separator near the frame ring; the reinforcing plate extends and narrows toward the deformable member.

[0015] A further technical solution is that the separator is arranged obliquely; curved surfaces are provided on both sides of the separator; and the curved surfaces are fitted with rollers.

[0016] Compared with the prior art, the beneficial technical effects of the utility model are as follows: (1) When the retaining frame of the cylindrical roller bearing is installed between the rollers, the convex part is inserted between the rollers, the concave part fits the outer surface of one end of the roller, and the other end of the roller is placed between the adjacent separators; the separators and the convex part separate the adjacent rollers, and the concave part elastically fits the roller so that the roller can roll smoothly; in order to allow the roller to roll smoothly, it is necessary to increase the contact area of ​​the concave part, and the concave part is designed to fit the roller in an arc shape. The thickness of the deformable part is relatively thin, and the deformable part has a certain deformation elasticity, so that the concave part always fits the roller and does not form a large tight force.

[0017] (2) The protrusions restrict the roller, preventing it from leaving the concave surface, and the roller will not shake when rolling.

[0018] (3) The reinforcing edge is embedded in the protrusion, and the reinforcing edge provides effective support for the protrusion, so that the protrusion can firmly restrict the roller and prevent the roller from shaking when rolling.

[0019] (4) The spirally distributed curved surface acts as a limit on the roller, preventing the roller from jumping when rolling.

[0020] (5) The recess is pushed by the elastic edge so that the recess always fits the roller, ensuring stable rolling of the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The schematic diagram of the structure of the retainer of the cylindrical roller bearing according to the first embodiment of the utility model is shown.

[0022] Figure 2 Shows Figure 1 Structural diagram at AA in the middle.

[0023] Figure 3 Shows Figure 2 Structural diagram at BB in the middle.

[0024] Figure 4 Shows Figure 2 Structural diagram of the CC in the middle.

[0025] Figure 5The schematic diagram of the structure of the retainer of the cylindrical roller bearing according to the second embodiment of the utility model is shown.

[0026] Figure 6 Shows Figure 5 Enlarged structural diagram at point D in the middle.

[0027] Figure 7 A side structural diagram of a cylindrical roller bearing cage according to a second embodiment of the utility model is shown.

[0028] Figure 8 A schematic structural diagram of a cylindrical roller bearing cage according to a third embodiment of the utility model is shown.

[0029] Fig. 9 Shows Figure 8 Enlarged structural diagram at E in the middle.

[0030] Markings in the accompanying drawings: 1, frame ring; 11, reinforcement plate; 2, partition; 21, curved surface; 3, deformation member; 31, convex part; 32, concave part; 33, protrusion; 34, reinforcement member; 35, reinforcement edge; 36, elastic edge. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the utility model clearer, the device proposed in the utility model is further described in detail below in combination with the accompanying drawings and specific implementation methods. According to the following description, the advantages and features of the utility model will be clearer. It should be noted that the accompanying drawings adopt a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the utility model. In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated by the accompanying drawings of this specification are only used to match the content disclosed in the specification, so that people familiar with this technology can understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so it has no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model.

[0032] First embodiment:

[0033] Figure 1 The schematic diagram of the structure of the retainer of the cylindrical roller bearing according to the first embodiment of the utility model is shown. Figure 2 Shows Figure 1 Structural diagram at AA in the middle. Figure 3 Shows Figure 2 Structural diagram at BB in the middle. Figure 4 Shows Figure 2 The structural diagram of CC in the middle. Figure 1-Figure 4 As shown, the utility model discloses a retaining frame of a cylindrical roller bearing.

[0034] The retainer of the cylindrical roller bearing comprises: a vertically arranged frame ring 1, spacers 2 arranged in parallel around the frame ring 1, and a deformation member 3 connected to the spacer 2. One end of the spacer 2 is connected to the frame ring 1, and the other end of the spacer 2 is connected to the deformation member 3.

[0035] The deformable member 3 includes a convex portion 31 that bends outward and a concave portion 32 that bends inward. The convex portion 31 and the concave portion 32 are connected to each other alternately and reciprocally. The convex portion 31 is connected to the partition 2. There is an arc transition between the convex portion 31 and the concave portion 32.

[0036] A first space is formed between adjacent partitions 2. A second space is formed between adjacent convex portions 31. The first space and the second space are communicated with each other for accommodating the roller.

[0037] When the retainer of the cylindrical roller bearing is installed between the rollers, the convex portion 31 is inserted between the rollers, the concave portion 32 fits the outer surface of one end of the roller, and the other end of the roller is placed between adjacent separators 2. The separators 2 and the convex portion 31 separate the adjacent rollers, and the concave portion 32 elastically fits the rollers, so that the rollers can roll smoothly.

[0038] In order to make the roller roll smoothly, the contact area of ​​the concave portion 32 needs to be increased, and the concave portion 32 is designed to be an arc shape that fits the roller. For example, the deformable member 3 is made of metal. The thickness of the deformable member 3 is relatively thin, and the deformable member 3 has a certain deformation elasticity, so that the concave portion 32 always fits the roller without forming a large tight force.

[0039] Second embodiment:

[0040] Figure 5 The schematic diagram of the structure of the retainer of the cylindrical roller bearing according to the second embodiment of the utility model is shown. Figure 6 Shows Figure 5 Enlarged structural diagram at point D in the middle. Figure 7 FIG. 2 shows a side view of the cylindrical roller bearing cage of the second embodiment of the utility model. Figure 1-Figure 7 As shown:

[0041] The position where the concave portion 32 connects to the convex portion 31 is provided with a protrusion 33. The protrusion 33 is provided on the surface of the concave portion 32. The surface of the protrusion 33 contacts and abuts against the roller. The protrusion 33 is relatively located on both sides of the roller.

[0042] When the retainer of the cylindrical roller bearing is installed between the rollers, the convex portion 31 is inserted between the rollers and the protrusion 33 abuts against both sides of the rollers.

[0043] The protrusion 33 restricts the roller, thereby preventing the roller from being separated from the surface of the recess 32, and the roller will not shake when rolling.

[0044] A reinforcement member 34 is disposed in the convex portion 31. The reinforcement member 34 is distributed along the roller direction.

[0045] Since the convex part 31 is relatively thin, when the convex part 31 is inserted between the rollers, the convex part 31 will be deformed by the force when it hits the rollers. If the convex part 31 is subjected to a large force, the concave part 32 will be deformed, thereby affecting the insertion of the rollers. The convex part 31 is structurally reinforced by the reinforcement member 34 to improve the force bearing capacity of the convex part 31.

[0046] The reinforcing member 34 is provided with a reinforcing edge 35. The reinforcing edge 35 is embedded in the protrusion 33. The reinforcing edge 35 is provided on both sides of the reinforcing member 34. The reinforcing edge 35 passes through the recess 32 and then is embedded in the protrusion 33.

[0047] The protrusion 33 is arranged on the concave portion 32. The thickness of the concave portion 32 is relatively thin, so that the force of the protrusion 33 against the roller is relatively small, and the protrusion 33 cannot effectively restrict the roller. The reinforcing edge 35 is embedded in the protrusion 33, and the reinforcing edge 35 forms an effective support for the protrusion 33, so that the protrusion 33 can firmly restrict the roller and prevent the roller from shaking when rolling.

[0048] A reinforcing plate 11 is provided on the spacer 2 near the frame ring 1. The reinforcing plate 11 is located on both sides of the upper and lower sides of the spacer 2. The reinforcing plate 11 located above the spacer 2 is connected to the frame ring 1. The reinforcing plate 11 extends and narrows toward the direction of the deformable member 3.

[0049] Since the deformable member 3 and the partition member 2 are connected, the structural strength of the partition member 2 is strengthened by the reinforcing plate 11 , thereby increasing the stability of the deformable member 3 .

[0050] The separator 2 is tilted. The side of the separator 2 close to the frame ring 1 is tilted outward, and the side of the separator 2 close to the deformation member 3 is tilted inward. Curved surfaces 21 are provided on both sides of the separator 2. The curved surface 21 fits the roller. Since the separator 2 is tilted, the curved surface 21 is spirally distributed in order to fit the roller.

[0051] The spirally distributed curved surface 21 has a limiting effect on the roller, thereby preventing the roller from jumping when rolling.

[0052] Third embodiment:

[0053] Figure 8 A schematic structural diagram of a cylindrical roller bearing cage according to a third embodiment of the utility model is shown.

[0054] Fig. 9 Shows Figure 8 The enlarged structure diagram at E in the middle. Figure 1-Figure 9 As shown:

[0055] The reinforcing member 34 is provided with a diffusely extending elastic edge 36 , which abuts against the recess 32 .

[0056] Two sets of elastic edges 36 are disposed on the reinforcing member 34 , and the two sets of elastic edges 36 are gradually spaced apart from each other. When the elastic edges 36 extend to the limit, the elastic edges 36 abut against the recessed portion 32 .

[0057] The recess 32 is pushed by the elastic edge 36 so that the recess 32 always fits the roller, thereby ensuring stable rolling of the roller.

[0058] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A cylindrical roller bearing cage, characterized in that: include: Rack ring (1); The partitions (2) are arranged in parallel around the frame ring (1); A deformable member (3) connected to the separator (2); The deformable member (3) comprises a convex portion (31) bent outward and a concave portion (32) bent inward; the convex portion (31) and the concave portion (32) are connected to each other in an alternating reciprocating manner; and the convex portion (31) is connected to the separator (2).

2. The cylindrical roller bearing cage according to claim 1, characterized in that: The recess (32) is in an arc shape that fits the roller.

3. The retainer of a cylindrical roller bearing according to claim 1, characterized in that: A protrusion (33) is arranged at a position where the concave portion (32) is connected to the convex portion (31); the protrusion (33) abuts against the roller.

4. The retainer of a cylindrical roller bearing according to claim 3, characterized in that: A reinforcing member (34) is arranged inside the convex portion (31); the reinforcing member (34) is distributed along the roller direction.

5. The cylindrical roller bearing cage according to claim 4, characterized in that: A reinforcing edge (35) is provided on the reinforcing member (34); the reinforcing edge (35) is embedded in the protrusion (33).

6. The retainer of a cylindrical roller bearing according to claim 4, characterized in that: The reinforcing member (34) is provided with a diffusely extending elastic edge (36); the elastic edge (36) abuts against the recess (32).

7. The retainer of a cylindrical roller bearing according to claim 1, characterized in that: A reinforcing plate (11) is arranged on the partition (2) at a position close to the frame ring (1); the reinforcing plate (11) extends and narrows in the direction of the deformable member (3).

8. The retainer of a cylindrical roller bearing according to claim 1, characterized in that: The separator (2) is arranged at an angle; curved surfaces (21) are provided on both sides of the separator (2); and the curved surfaces (21) are fitted to the roller.

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