CN219510020U - Stamping retainer for tapered roller bearing - Google Patents

Abstract

The utility model provides a stamping retainer for a tapered roller bearing, which comprises an integrally arranged annular body, wherein a plurality of pockets are formed in the annular body, each pocket comprises two radial side surfaces and two axial side surfaces, the two radial side surfaces are oppositely arranged, the two axial side surfaces are matched with the outer peripheral surface of the tapered roller, the two radial side surfaces are matched with the end surfaces of the tapered roller, and a roller locking surface and a rolling surface are sequentially arranged on each axial side surface from outside to inside. The device has the advantages of simple structure, safety and reliability, and can ensure the rotation precision of the bearing in the use process and the dynamic balance of the bearing rotation bearing.

Description

Stamping retainer for tapered roller bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to a stamping retainer for a tapered roller bearing.

Background

The conventional technological process of the existing conical bearing stamping retainer is a product obtained by blanking, forming, punching, slope pressing and stretching, the application is wide, and the bearing is almost free from problems when used by common equipment. However, when important equipment such as precision machine tools, railway high-speed rails, rolling mills of steel mills and the like are used for the bearing retainer with the structure, the temperature rise and the bearing damage occur frequently, and the small end of the bearing retainer breaks for numerous times in the use history of the bearing, which is commonly called as the bottom falling quality problem. The railway stamping conical retainer is frequently clamped clockwise when the bearing rotates in the assembling process, and the quality problem that the bearing can rotate anticlockwise is solved. The research shows that the quality problem of the stamping conical retainer is caused by the stretching process of the stamping process, the stretching process of the stamping conical retainer is to expand products which are processed to be very qualified at the root of the conical retainer, the expansion standard is to mount rolling bodies into all pockets from the inner diameter of the retainer and then mount the rolling bodies into an inner sleeve, the channeling is tested, and the channeling needs to shrink back when the bearing is sleeved, so that the bearing design standard channeling is achieved. The expansion purpose of the practical stamping conical retainer is to put rolling bodies into pockets of the retainer, then the rolling bodies and the bearing inner rings are contracted together to form a retainer assembly, the rolling bodies are kept at the rotating position of the inner raceways, but due to the expansion strength of the expansion positions, the manufacturing precision of a die and other factors can influence the expansion consistency of each pocket of the retainer, and particularly the expansion process breaks the original window machining precision, the bottom width parallel precision, the conical angle precision and the like of the retainer. The precision of the extending process cannot be restored to the original machining precision when the bearing is assembled and riveted, and only the shrinkage ensures that the clearance is qualified, because the stamping retainer is quite divided into a plurality of parts, if one rolling body is not shrunk in place or is excessively shrunk, the roller is blocked, and the bearing is inflexible in rotation. The assembly process can only give a little external force to rotate the jammed rolling element. Therefore, the problem of bearing rotation precision and the problem of dynamic balance of the bearing rotation bearing often occur in the use process of users.

In order to solve the problem of bearing rotation precision frequently occurring in the use process and the problem of dynamic balance of the bearing rotation bearing, a new tapered roller bearing retainer is required to be designed.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the stamping retainer for the tapered roller bearing, which has a simple structure, is safe and reliable, and can ensure the rotation precision of the bearing in the use process and the dynamic balance of the bearing rotation bearing.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a stamping retainer for tapered roller bearing, includes the annular body of integrative setting, set up a plurality of pockets on the annular body, every pocket is including two radial side and the two axial side that set up relatively, wherein two the axial side with tapered roller's outer peripheral face looks adaptation, two radial side with tapered roller's terminal surface looks adaptation, every axial side has set gradually lock roller face and rolling surface from outside to interior.

Further, a guide surface is provided on a side of the lock roller surface away from the rolling surface.

Further, the rolling surface is a plane, and the plane is in line contact with the tapered roller.

Further, the rolling surface is a concave cambered surface, and the concave cambered surface is in surface contact with the tapered roller.

Further, the lock roller surface is a straight surface, and the lock roller surface is in line contact with the peripheral surface of the tapered roller.

Further, the guide surface is a slope inclined toward a side away from the lock roller surface.

Further, the rolling surface and the lock roller surface are in smooth transition, and the joint of the outer edge of the guide surface and the outer peripheral surface of the annular body is in arc transition.

Further, the rolling surface and the lock roller surface are in smooth transition.

Further, the four corners of the pocket hole are radially provided with arc transition.

Further, a cross beam is arranged between the adjacent pockets, the axial side surface is formed on the cross beam, and the locking roller surface and a boss formed on the outer diameter side of the cross beam.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model provides a stamping retainer for a tapered roller bearing, which comprises an integrally arranged annular body, wherein a plurality of pockets are formed in the annular body, each pocket comprises two radial side surfaces and two axial side surfaces, the two radial side surfaces are oppositely arranged, the two axial side surfaces are matched with the outer peripheral surface of the tapered roller, the two radial side surfaces are matched with the end surfaces of the tapered roller, and a roller locking surface and a rolling surface are sequentially arranged on each axial side surface from outside to inside. The device has the advantages of simple structure, safety and reliability, and can ensure the rotation precision of the bearing in the use process and the dynamic balance of the bearing rotation bearing.

Drawings

FIG. 1 is a schematic diagram of a front view structure of an embodiment of the present utility model;

FIG. 2 is a schematic view of the A-A direction structure in FIG. 1;

fig. 3 is a schematic perspective view of an embodiment of the present utility model.

In the figure: 1. the novel roller lock comprises an annular body, 2, a pocket hole, 3, a rolling surface, 4, a roller locking surface, 5, a guiding surface, 6, a cross beam, 7 and a boss.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

As shown in fig. 1-3, a stamping retainer for tapered roller bearings comprises an integrally arranged annular body 1, wherein a radial flange protruding inwards is arranged at the small-diameter end of the annular body 1, a plurality of pockets 2 matched with tapered rollers are formed in the annular body 1, each pocket 2 comprises two radial side surfaces arranged oppositely and two axial side surfaces arranged oppositely, the two axial side surfaces are matched with the outer peripheral surface of the tapered roller, the two radial side surfaces are matched with the end surfaces of the tapered roller, and a locking roller surface 4 and a rolling surface 3 are sequentially arranged on each axial side surface from outside to inside.

The stamping retainer for tapered roller bearings of this embodiment has a simple structure, is safe and reliable, and is provided with the roller locking surface 4 in the pocket 2, so that rollers can be locked in the rolling surface 3, rolling bodies are prevented from falling from the outside, and the rotation precision of the bearings in the use process and the dynamic balance of the bearing rotation bearings can be ensured.

Specifically, the rolling surface 3 in this embodiment is a plane, and the plane is in line contact with the tapered roller. The structure is simple, and the processing is convenient.

In another embodiment, the rolling surface 3 is a concave cambered surface, and the concave cambered surface is in contact with the tapered roller surface. When in use, the rolling surface 3 contacts with the tapered roller surface to improve the running stability of the bearing.

The lock roller surface 4 is a straight surface. The lock roller surface 4 is in line contact with the tapered roller outer peripheral surface. The bearing has the advantages of simple structure, convenience in processing and capability of improving the running stability of the bearing during use.

In order to facilitate the installation of the tapered rollers into the pockets 2 from the outside, the lock roller surface 4 is provided with a guide surface 5 on the side remote from the guide surface 5. Specifically, the guide surface 5 is a slope inclined to a side away from the lock roller surface 4. A guide angle is formed between two opposite guide surfaces in the pocket.

In order to ensure the rapid installation of the cylindrical roller, scratches are avoided in the installation process, the rolling surface 3 and the locking roller surface 4 are in smooth transition, and the joint of the outer edge of the guiding surface 5 and the outer peripheral surface of the annular body 1 is in circular arc transition (namely, rounded corner). The rolling surface 3 and the lock roller surface 4 are in smooth transition.

In order to ensure free rolling of the cylindrical rollers and stable running of the bearing, arc transition is arranged at four corners of the pocket hole 2 along the radial direction.

In this embodiment, a cross member 6 is provided between adjacent pockets 2, an axial side surface is formed on the cross member 6, and a lock roller surface 4 is formed on a boss on an outer diameter side of the cross member 6. The lock roller boss width of this embodiment is 1mm, and the locking volume is 0.15~0.2mm, adopts the hold-down bar to impress the rolling element, relies on the cage bullet type to become and gets into pocket 2 windows, guarantees that the roller is packed into from the external diameter, does not fall out from the external diameter, and is convenient, swift.

It should be noted that the detailed portions of the present utility model are not described in the prior art.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

In the description of the present utility model, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

While embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a tapered roller bearing is with punching press holder which characterized in that: including the annular body of integrative setting, a plurality of pockets have been seted up on the annular body, every pocket is including two radial side and the two axial side of relative setting that set up, wherein two the axial side with tapered roller's outer peripheral face looks adaptation, two radial side with tapered roller's terminal surface looks adaptation, every axial side has set gradually lock roller face and rolling surface from outside to inside.

2. The press-fit retainer for tapered roller bearings according to claim 1, wherein: the lock roller surface is provided with a guide surface on a side away from the rolling surface.

3. The press-fit retainer for tapered roller bearings according to claim 1, wherein: the rolling surface is a plane, and the plane is in line contact with the tapered roller.

4. The press-fit retainer for tapered roller bearings according to claim 1, wherein: the rolling surface is a concave cambered surface, and the concave cambered surface is in surface contact with the tapered roller.

5. The press-fit retainer for tapered roller bearings according to claim 1, wherein: the lock roller surface is a straight surface, and is in line contact with the peripheral surface of the tapered roller.

6. The press-fit retainer for tapered roller bearings according to claim 2, characterized in that: the guide surface is a slope inclined toward a side away from the lock roller surface.

7. The press-fit retainer for tapered roller bearings according to claim 2, characterized in that: smooth transition is carried out between the rolling surface and the lock roller surface, and arc transition is carried out at the joint of the outer side edge of the guide surface and the outer peripheral surface of the annular body.

8. The press-fit retainer for tapered roller bearings according to claim 1, wherein: the rolling surface and the lock roller surface are in smooth transition.

9. The press-fit retainer for tapered roller bearings according to claim 1, wherein: the four corners of the pocket hole are radially provided with arc transition.

10. The press-fit retainer for a tapered roller bearing according to any one of claims 1 to 9, characterized in that: and a cross beam is arranged between the adjacent pockets, the axial side surface is formed on the cross beam, and the locking roller surface and a boss formed on the outer diameter side of the cross beam.