CN219035327U - Thin-wall crown-shaped retainer - Google Patents

Abstract

The application discloses thin wall shape coronary retainer, kong Liangfen is first contact section, section of bending and second contact section, after the ball assembly is to the pocket, first contact section and second contact section and the maximum diameter face contact of ball, the position of restriction ball, and the section of bending is for bending the formation towards the inner circle or the outer lane direction of bearing, form the circulation that the oil clearance made things convenient for lubricating grease with the ball between, the section of bending is contactless with ball maximum diameter face, thereby play the contact surface that reduces the ball and the pocket hole inner wall that the hole beam corresponds, reduce the effect of friction resistance, the bearing is rotatory more smooth and easy, less lubricating grease can realize the lubrication of this department position, thereby further reduce retainer and the phenomenon that the ball probably takes place wearing and tearing, kong Liangmo flanging, production and processing are convenient, the cost is lower.

Description

Thin-wall crown-shaped retainer

Technical Field

The application belongs to the field of bearing parts, and particularly relates to a thin-wall crown-shaped retainer.

Background

The thin-wall bearing is a special bearing applied to small-sized and light-weight products, and has an extremely thin bearing section, the radial space of the bearing is small, so that the space left in a retainer is small, the thickness of the retainer is reduced to form a thin wall, and only half of the retainer is used for the bearing.

When the thin-wall bearing rotates, the balls are in contact with the inner wall of the pocket hole, the radial space of the thin-wall bearing is small, the adding amount of lubricating grease in the bearing is limited, if the lubricating grease in the gap between the inner wall of the pocket hole of the retainer and the balls is insufficient, the contact surface of the hole beam of the thin-wall retainer with the balls is easy to generate larger friction moment, even the balls are scratched, the retainer is worn, and the dynamic performance of the bearing is influenced, so that a thin-wall crown-shaped retainer with less contact surface with the balls is needed, friction surface can be reduced, and the grease amount is small and can work normally.

Disclosure of Invention

The utility model provides a thin-wall crown-shaped retainer, which reduces the contact surface between the inner wall of a retainer pocket and balls, and can ensure that the retainer and the balls are not worn only by the lubricating grease on the contact surface in the rotating process of the thin-wall bearing, thereby reducing the requirement of the position for the lubricating grease and being suitable for the additional installation of the thin-wall bearing with limited total adding amount of the lubricating grease.

In order to achieve the above object, the present utility model provides a thin-walled crown-shaped retainer, which comprises a retainer body, wherein the retainer body is provided with hole beams, kong Liangyan are circumferentially equidistant, pockets are formed between adjacent hole beams, the pockets are shaped to fit the shape of balls, and openings for the balls to be put in are formed on one side of the retainer body by the pockets, and the retainer body is characterized in that the hole beams comprise integrally formed first contact sections, bending sections and second contact sections, the bending sections are bent towards the direction of the inner ring of the bearing or the direction of the outer ring of the bearing, the retainer body is assembled with the balls, the inner ring of the bearing and the outer ring of the bearing respectively to form a bearing, oil passing gaps are formed between the bending sections and the balls, and the first contact sections and the second contact sections are respectively used for contacting the surfaces of the balls to limit the positions of the balls.

The thin-wall bearing comprises a bearing inner ring, balls and a thin-wall retainer, wherein the Kong Liangfen is a first contact section, a bending section and a second contact section, after the balls are assembled into the pocket, the first contact section and the second contact section are in contact with the largest diameter surface of the balls to limit the positions of the balls, the bending section is formed by bending towards the inner ring or the outer ring of the bearing, an oil passing gap is formed between the bending section and the balls to facilitate the circulation of lubricating grease, the bending section is in non-contact with the largest diameter surface of the balls, so that the contact surface of the balls and the inner wall of the pocket corresponding to the hole beam is reduced, friction resistance is reduced, the bearing rotates more smoothly, the lubrication of the positions can be realized by less lubricating grease, and the abrasion phenomenon of the retainer and the balls is further reduced.

In a preferred implementation manner, a slope surface arranged towards the bearing inner ring is arranged at the position of the inner wall of the pocket corresponding to the first contact section.

The first contact section is provided with a slope surface facing the inner ring of the bearing corresponding to the inner wall of the pocket hole, so that the contact surface of the first contact section and the ball is further reduced, friction is reduced, and the bearing rotates more smoothly.

In a preferred implementation manner, a slope surface arranged towards the bearing inner ring is arranged at the position of the inner wall of the pocket corresponding to the second contact section.

The second contact section is provided with a slope surface facing the inner ring of the bearing corresponding to the inner wall of the pocket hole, so that the contact surface between the second contact section and the ball is further reduced, friction is reduced, and the bearing rotates more smoothly.

In a preferred implementation, the ramp extends to a location on the inner wall of the pocket near the edge of the bearing cup.

The processing is convenient, and the integral quality of the retainer can be reduced, thereby being beneficial to the rotation of the thin-wall bearing.

In a preferred implementation, an oil storage gap is formed between the ramp and the ball.

The slope has high-low level difference, is close to the bearing inner race and is low, and is relatively higher near the position of bearing outer race, and the aforesaid design has reduced the contact surface of first contact section and second contact section and ball to more oil storage clearance when comparing no slope in this region formation, simultaneously when thin wall bearing is rotatory, lubricating grease passes through ball and pocket clearance bearing outer race inner wall removal from the bearing inner race outer wall because of centrifugal force effect, flows through more oil mass in the slope position, is favorable to the lubrication of the pocket inner wall that first contact section and second contact section correspond with the ball.

In a preferred embodiment, the cross section of the bending section is an arc-shaped surface.

The section of bending section is the arciform face, and processing is convenient, and the section of bending has changed the whole cross-section shape of hole roof beam, has improved bending resistance cross-section coefficient, and when the vertical follow opening part of ball was pressed into the keeper, the hole roof beam was difficult for taking place bending deformation more, and the arciform face design is more pleasing to the eye simultaneously.

In a preferred embodiment, the opening extends into the pocket to form a grip, the grip having an arcuate surface.

The design of the arc surface can not scratch the balls when the balls are filled into the pocket holes from the openings, the holding part limits the balls to be separated from the retainer, and the structural design is more reasonable.

In a preferred implementation, the retainer body bottom is provided with a hem inwardly.

The structure has the following beneficial effects:

1. kong Liangfen is first contact section, section of bending and second contact section, after the ball assembly to the pocket hole, first contact section and second contact section and the maximum diameter face contact of ball, the position of restriction ball, and the section of bending is for bending the formation towards the inner circle or the outer lane direction of bearing, form the circulation that the oil clearance made things convenient for lubricating grease with the ball between, the section of bending is contactless with the maximum diameter face of ball, thereby play the contact surface that reduces the pocket hole inner wall that ball and hole roof beam correspond, reduce the effect of friction resistance, the bearing rotation is more smooth and easy, less lubricating grease can realize the lubrication of this position, thereby further reduce retainer and the phenomenon that the ball probably takes place wearing and tearing, kong Liangmo flanging, production and processing is convenient, the cost is lower.

2. The slope surface facing the bearing inner ring is arranged at the inner wall position of the corresponding pocket hole of the first contact section and the second contact section, so that the contact surface of the first contact section and the second contact section with balls is reduced, more oil storage gaps are formed in the area when no slope surface is formed, meanwhile, when the thin-wall bearing rotates, lubricating grease moves from the outer wall of the bearing inner ring through the balls and the inner wall of the outer ring of the pocket hole gap bearing due to centrifugal force, more oil flows through the slope surface at the position of the slope surface, and lubrication of the inner wall of the pocket hole corresponding to the first contact section and the second contact section and the balls is facilitated.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the present application and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is an assembled schematic view of an exemplary embodiment of a thin-walled bearing of the present application;

FIG. 2 is a schematic view of an exemplary embodiment of a retainer body of the present application;

FIG. 3 is a schematic diagram of an exemplary embodiment of portion A of FIG. 2 of the present application;

FIG. 4 is a schematic diagram of an exemplary embodiment of the present application Kong Liangde;

FIG. 5 is a schematic illustration of an exemplary embodiment of the oil clearance of the present application;

description of the reference numerals:

1. a holder body; 10. a hole beam; 100. a first contact section; 101. a bending section; 102. a second contact section; 103. a slope; 11. a pocket; 110. an opening; 111. a holding part; 12. folding edges;

2. a ball; 20. an oil passing gap; 21. an oil storage gap;

3. a bearing inner ring; 4. and a bearing outer ring.

Detailed Description

In order to more clearly illustrate the general inventive concept, reference will be made in the following detailed description, by way of example, to the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than as described herein, and therefore the scope of the present utility model is not limited by the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements 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. 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.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. However, it is noted that a direct connection indicates that two bodies connected together do not form a connection relationship by an excessive structure, but are connected to form a whole by a connection structure. 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.

The description as it relates to "first", "second", etc. in the present utility model is for descriptive purposes only and is 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.

As shown in fig. 1-5, the utility model provides a thin-wall crown-shaped retainer, which comprises a retainer body 1, wherein the retainer body 1 is provided with hole beams 10, the hole beams 10 are arranged at equal intervals along the circumferential direction of the retainer body 1, pockets 11 are formed between adjacent hole beams 10, the shapes of the pockets 11 are matched with the shapes of balls 2, and openings 110 for placing the balls 2 are formed on one side of the retainer body by the pockets 11, the retainer is characterized in that the hole beams 10 comprise a first contact section 100, a bending section 101 and a second contact section 102 which are integrally formed, the bending section 101 is bent towards the direction of a bearing inner ring 3 or the direction of a bearing outer ring 4, the retainer body 1, the bearing inner ring 3 and the bearing outer ring 4 are respectively assembled with each other to form a bearing, oil passing gaps 20 are formed between the bending section 101 and the balls 2, and the first contact section 100 and the second contact section 102 are respectively used for contacting the surfaces of the balls 2 to limit the positions of the balls 2.

The thin-wall bearing is composed of the bearing inner ring 3, the balls 2 and the thin-wall retainer, the hole beam 10 is divided into the first contact section 100, the bending section 101 and the second contact section 102, after the balls 2 are assembled to the pocket hole 11, the first contact section 100 and the second contact section 102 are in contact with the largest diameter surface of the balls 2, the positions of the balls 2 are limited, the bending section 101 is formed by bending towards the inner ring or the outer ring of the bearing, an oil passing gap 20 is formed between the bending section 101 and the balls 2, the oil passing gap 20 is convenient for the circulation of lubricating grease, the bending section 101 is not in contact with the largest diameter surface of the balls 2, therefore, the contact surface between the balls 2 and the inner wall of the pocket hole 11 corresponding to the hole beam 10 is reduced, the friction resistance is reduced, the bearing rotates more smoothly, the lubrication of the positions can be realized by less lubricating grease, and the abrasion phenomenon of the retainer and the balls 2 is further reduced.

As a preferred embodiment of the present application, as shown in fig. 3, a slope 103 disposed toward the bearing inner ring 3 is provided at a position of the inner wall of the pocket 11 corresponding to the first contact section 100.

The first contact section 100 is provided with the slope 103 facing the bearing inner ring 3 corresponding to the inner wall position of the pocket 11, so that the contact surface between the first contact section 100 and the ball 2 is further reduced, friction is reduced, and the bearing rotates more smoothly.

As a preferred embodiment of the present application, as shown in fig. 3, a slope 103 disposed toward the bearing inner ring 3 is provided at a position of the inner wall of the pocket 11 corresponding to the second contact section 102.

The second contact section 102 is provided with the slope 103 facing the bearing inner ring 3 corresponding to the position of the inner wall of the pocket 11, so that the contact surface between the second contact section 102 and the ball 2 is further reduced, friction is reduced, and the bearing rotates more smoothly.

In a preferred implementation, as shown in fig. 3, the ramp 103 extends to a position where the inner wall of the pocket 11 is adjacent to the edge of the bearing cup 4.

The processing is convenient, and the integral quality of the retainer can be reduced, thereby being beneficial to the rotation of the thin-wall bearing.

Further, as shown in fig. 5, an oil storage gap 21 is formed between the slope 103 and the ball 2.

The slope 103 has a high-low level difference, the position close to the bearing inner ring 3 is low, and the position close to the bearing outer ring 4 is relatively higher, so that the contact surfaces of the first contact section 100 and the second contact section 102 and the balls 2 are reduced, more oil storage gaps 21 are formed in the area compared with the situation without the slope 103, meanwhile, when the thin-wall bearing rotates, lubricating grease moves from the outer wall of the bearing inner ring 3 through the inner wall of the ball 2 and the gap between the balls 11 and the inner wall of the bearing outer ring 4 due to centrifugal force, and more oil flows through the position of the slope 103, so that lubrication of the inner wall of the corresponding pockets 11 of the first contact section 100 and the second contact section 102 and the balls 2 is facilitated.

As a preferred embodiment of the present application, as shown in fig. 4, the cross section of the bending section 101 is an arc-shaped surface.

The section of the bending section 101 is an arc-shaped surface, the processing is convenient, the whole section shape of the hole beam 10 is changed by the bending section 101, the bending-resistant section coefficient is improved, when the ball 2 is pressed into the retainer from the opening 110 vertically, the hole beam 10 is not easy to bend and deform, and meanwhile, the arc-shaped surface is designed more attractive.

As a preferred embodiment of the present application, as shown in fig. 2, the opening 110 extends into the pocket 11 to form a holding portion 111, and the holding portion 111 has an arcuate surface.

The design of the arc surface can not scratch the ball 2 when the ball 2 is put into the pocket 11 from the opening 110, the holding part 111 limits the ball 2 to be separated from the retainer, and the structural design is more reasonable.

As a preferred embodiment of the present application, as shown in fig. 1, the bottom of the holder body 1 is provided with a hem 12 inwardly.

The design of the folded edge 12 can increase the overall rigidity of the retainer, and the structural design is more reasonable.

The utility model can be realized by adopting or referring to the prior art at the places which are not described in the utility model.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are to be included in the scope of the claims of the present utility model.

Claims (8)

1. The utility model provides a thin wall shape coronary keeper, includes the keeper body, the keeper body is equipped with the aperture roof beam, kong Liangyan the keeper body hoop equidistance sets up, adjacent form the pocket hole between the aperture roof beam, pocket hole shape adaptation ball shape just the pocket hole is in one side of keeper body forms the opening that supplies the ball to put into, a serial communication port, the aperture roof beam includes integrated into one piece's first contact section, bending section and second contact section, bending section is towards bearing inner race direction or bearing outer lane direction bending formation, the keeper body is assembled into the bearing with ball, bearing inner race, bearing outer lane each other respectively, bending section with form the oil clearance between the ball, first contact section with the second contact section is used for contacting respectively the ball surface is in order to restrict the ball position.

2. A thin-walled crown holder according to claim 1, wherein the pocket inner wall position corresponding to the first contact section is provided with a sloping surface arranged towards the bearing inner ring.

3. A thin-walled crown holder according to claim 1, wherein the second contact section is provided with a sloping surface arranged towards the inner race of the bearing at a position of the pocket inner wall corresponding thereto.

4. A thin walled crown holder according to claim 2 or 3, wherein the ramp extends to a location on the inner wall of the pocket adjacent the edge of the bearing cup.

5. A thin walled crown holder according to claim 2 or 3, wherein an oil storage gap is formed between the ramp and the balls.

6. A thin-walled crown holder according to claim 1, wherein the cross-section of the bent section is an arcuate surface.

7. The thin-walled crown holder of claim 1, wherein the opening extends into the pocket to form a gripping portion having an arcuate surface.

8. A thin-walled crown holder according to claim 1, wherein the holder body bottom is inwardly hemmed.

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