CN215110096U

CN215110096U - Oval retainer with sealing performance

Info

Publication number: CN215110096U
Application number: CN202121370480.2U
Authority: CN
Inventors: 郑广会; 温春国
Original assignee: Shandong Golden Empire Precision Machinery Technology Co Ltd
Current assignee: Shandong Golden Empire Precision Machinery Technology Co Ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-12-10
Anticipated expiration: 2031-06-21

Abstract

The utility model discloses an oval retainer with sealing performance, which comprises two annular retainer bodies which are oppositely arranged, wherein the two retainer bodies are detachably connected together, one axial end of the retainer body is uniformly provided with a plurality of ball pocket parts along the circumferential direction, and the ball pocket parts on the two retainer bodies are arranged right opposite to each other; keep away from the one end of ball pocket portion, be provided with the flange limit on keeping the ware body, be provided with the pipeline that link up on the horizontal plane at both ends about the flange limit, the flange edge link up pipeline department homogeneous body and moulded plastics there is annular sealing washer, makes to keep the ware body possess when keeping apart adjacent rolling member and can prevent that dust etc. from getting into inside the bearing, and it can carry out the installation of sealing washer when the installation keeps the ware body, does not need to carry out the installation of sealing washer alone again, has simplified the assembling process of bearing.

Description

Oval retainer with sealing performance

Technical Field

The utility model relates to a bearing technical field, concretely relates to oval holder with sealing performance.

Background

An elliptical cage refers to a bearing component that partially encases all or part of the rolling elements and moves with them to isolate the rolling elements and generally also to guide and retain them within the bearing. Because the existing retainer does not have a sealing function, a group of sealing rings are generally required to be independently installed on the outer side of the retainer after the retainer is installed to seal the bearing, so that dust and the like are prevented from entering the inside of the bearing and influencing the rotation of a rolling piece in the bearing. However, in some ball bearings, the space structure inside the ball bearing is limited, which causes inconvenience in the arrangement of the sealing ring and causes a long time consumption in the whole assembly process.

Disclosure of Invention

The utility model aims to solve the problem that sealing rings and sealing rings are inconvenient to install independently on the existing bearing, an ellipse retainer with sealing performance is provided and designed, so that the retainer of the bearing has a sealing function, and the sealing rings are not required to be arranged outside the retainer independently, and further the assembly process of the bearing is simplified.

In order to achieve the above object, the present invention provides the following technical solutions: an oval retainer with sealing performance comprises two annular retainer bodies which are oppositely arranged, wherein the two retainer bodies are detachably connected together, a plurality of ball pocket parts are uniformly arranged at one axial end of each retainer body along the circumferential direction, and the ball pocket parts on the two retainer bodies are arranged oppositely; keep away from the one end of ball pocket portion, be provided with the flange limit on the ware body, both ends all are provided with the through pipe way about the planar flange limit, through pipe way department homogeneous body has moulded plastics annular sealing washer on the flange limit, and two sealing washers can contact with inner circle, the outer lane of bearing respectively. After the retainer body is arranged on the bearing, the sealing rings at two ends can be directly used for dust prevention. And because the sealing ring and the retainer body are manufactured by an integral injection molding process, the sealing ring does not need to be independently installed in the bearing assembling process, and the sealing ring and the retainer body can be directly and simultaneously assembled.

The utility model discloses a further improvement still, the cross section of sealing washer is the mouth font, and a vertical position of sealing washer is in the through pipe way that corresponds on the flange limit, the face of cylinder that corresponds one side on the flange limit is wrapped up by the sealing washer that corresponds. Thus, under the condition that the sealing ring is ensured not to fall off, the gap between the retainer body and the bearing inner ring and the gap between the retainer body and the bearing outer ring can be filled through the other vertical part on the sealing ring, and meanwhile, dust and the like are prevented from entering the inside of the bearing.

In addition, the sealing ring can also be an annular sealing ring with an I-shaped cross section, the vertical part of the sealing ring is positioned in the corresponding through pipeline, and the two horizontal parts of the sealing ring are respectively positioned at the two axial sides of the flange edge; the diameter of the outer ring of at least one horizontal part on the sealing ring at one end of the outer cylindrical surface of the flange edge is larger than that of the outer ring of the flange edge; the diameter of the inner ring of at least one horizontal part on the sealing ring at one end of the inner cylindrical surface of the flange edge is smaller than that of the inner ring of the flange edge. Therefore, under the condition that the sealing ring cannot fall off, gaps among the retainer body, the bearing outer ring and the bearing inner ring can be shielded through the corresponding horizontal part on the sealing ring, and dust and the like are prevented from entering the inside of the bearing.

The utility model discloses a further improvement still, is close to one side of ball pocket portion on the flange, all be provided with annular baffle on the interior cylinder face of keeping the ware body and the outer cylinder face, annular baffle inclines towards the sealing washer direction that corresponds one side, can carry out the secondary through annular baffle to getting into and keep the inside dust of ware body etc. and stop like this.

The utility model is further improved in that the end part of the annular baffle is flush with the outer cylindrical surface corresponding to the maximum diameter of the sealing ring outside the outer cylindrical surface of the retainer body; inside the inner cylindrical surface of the holder body, the end of said annular baffle is flush with the inner cylindrical surface of the smallest diameter on the corresponding sealing ring, so that there is no gap between the end of the annular baffle and the inner and outer rings of the bearing.

The utility model discloses a further improvement still, ring baffle and the integrative injection moulding of keeping the ware body avoid ring baffle and keep the ware body between have the clearance, simplify the whole assembly process who keeps the ware simultaneously.

The utility model discloses a further improvement still, the semiellipse shape of ball pocket portion's cross-section for following the major axis and cutting apart makes and has certain clearance between ball pocket portion and the steel ball, and then makes the steel ball about in the ball pocket drunkenness volume increase, and has increased the space that lubricating grease got into, can play critical effect to the lubrication of bearing and steel ball, has reduced the steel ball effectively and has kept the noise that produces between the ware.

The utility model discloses a further improvement still, the material of sealing washer is nitrile rubber, keeps the material of ware body to be polyamide resin.

The beneficial effects of the utility model reside in that, the utility model discloses a set up the sealing washer in the left and right sides that keeps this end of body, make and keep the body to possess dustproof function when possessing the rolling member function that separates, avoid dust etc. to get into inside the bearing from keeping the gap department between body and bearing inner race or the bearing inner race. Additionally, the utility model provides a sealing washer and keep adopting integrative injection moulding process to make between the ware body and form, do not have any clearance between the two, its is sealed, dustproof effect is showing. And both are installed simultaneously in the assembling process, do not need to carry out the installation of sealing washer alone, have simplified the assembling process of bearing.

Furthermore, the utility model relates to a principle is reliable, and simple structure has very extensive application prospect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 3 is a schematic structural view of the present invention with the sealing ring removed.

In the figure, 1 is a retainer body, 2 is a flange edge, 3 is a through pipeline, 4 is a ball pocket part, 5 is a steel ball, 6 is a sealing ring, and 7 is an annular baffle.

Detailed Description

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

The following explains key terms appearing in the present invention.

As shown in fig. 1, the present invention relates to a first embodiment of an elliptical retainer with sealing performance, which comprises two annular retainer bodies 1 arranged oppositely, wherein the two retainer bodies 1 are detachably connected together. A plurality of ball pockets 4 are uniformly arranged at one axial end of the retainer body 1 along the circumferential direction, and the cross section of each ball pocket 4 is preferably a semi-ellipse divided along the long axis. And the ball pocket parts 4 on the two retainer bodies 1 are just opposite to each other, and the two opposite ball pocket parts 4 form a complete pocket hole.

Keep away from the one end of ball pocket portion 4, be provided with flange 2 on the ware body 1, flange 2 goes up planar both ends of controlling and all is provided with through

pipe

3, and 3 department unions of two through pipe have moulded plastics annular sealing washer 6, and two sealing washers 6 can contact with inner circle, the outer lane of bearing respectively. Wherein the material of the seal ring 6 is nitrile rubber, and the material of the retainer body 1 is polyamide resin. Furthermore, the cross section of the sealing ring 6 is square, one vertical part of the sealing ring 6 is positioned between the flange edge 2 and the bearing outer ring or the bearing inner ring, the other vertical part of the sealing ring 6 is positioned in the corresponding through pipeline 3 on the flange edge 2, and the cylindrical surface on the corresponding side of the flange edge 2 is wrapped in the corresponding sealing ring 6.

In addition, as shown in fig. 3, in order to enhance the sealing effect of the retainer, on the flange 2 near the ball pocket portion 4, annular baffles 7 are provided on both the inner cylindrical surface and the outer cylindrical surface of the retainer body 1, and the annular baffles 7 are inclined toward the seal ring 6 on the corresponding side. Further, outside the outer cylindrical surface of the retainer body 1, the end of the annular baffle 7 is flush with the outer cylindrical surface corresponding to the maximum diameter of the seal ring 6; inside the inner cylindrical surface of the holder body 1, the ends of said annular baffles 7 are flush with the inner cylindrical surface of the corresponding sealing ring 6 of minimum diameter. This makes it possible to perform secondary blocking of dust and the like in the holder by the annular shutter 7. And annular baffle 7 can adopt integrative injection moulding with holder body 1, both can avoid having the gap between annular baffle 7 and the holder body 1, can reduce the assembly degree of difficulty of holder again.

As shown in fig. 2, the first embodiment of the elliptical retainer with sealing performance of the present invention is different from the elliptical retainer shown in fig. 1 in that the cross section of the sealing ring 6 is i-shaped, the vertical portion of the sealing ring 6 is located in the corresponding through pipe 3, and two horizontal portions of the sealing ring 6 are respectively located at two axial sides of the flange 2. Wherein, on the seal ring 6 positioned at one end of the outer cylindrical surface of the flange edge 2, the diameter of the outer ring of at least one horizontal part is larger than that of the outer ring of the flange edge 2, and the end part of the horizontal part is contacted with the outer ring of the bearing; on the sealing ring 6 at one end of the inner cylindrical surface of the flange 2, the diameter of the inner ring of at least one horizontal part is smaller than that of the flange 2, and the end part of the horizontal part is contacted with the inner ring of the bearing.

Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be included within the scope of the present invention; those skilled in the art can easily conceive of changes or substitutions within the technical scope of the present disclosure, and all such changes or substitutions are intended to be included within the scope of the present disclosure. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An oval retainer with sealing performance comprises two annular retainer bodies (1) which are arranged oppositely, wherein the two retainer bodies (1) are detachably connected together, and the oval retainer is characterized in that a plurality of ball pocket parts (4) are uniformly arranged at one axial end of each retainer body (1) along the circumferential direction, and the ball pocket parts (4) on the two retainer bodies (1) are arranged oppositely; keep away from the one end of ball pocket portion (4), be provided with flange limit (2) on keeping ware body (1), both ends all are provided with through pipe way (3) about flange limit (2) is gone up the planar, through pipe way (3) department homogeneous body is moulded plastics on flange limit (2) has annular sealing washer (6), and two sealing washers (6) can contact with inner circle, the outer lane of bearing respectively.

2. Elliptical retainer with sealing capability as claimed in claim 1, characterised in that the cross-section of the sealing ring (6) is square, one vertical part of the sealing ring (6) being located in the corresponding through-duct (3) on the flange side (2), the cylindrical surface on the corresponding side of the flange side (2) being wrapped by the corresponding sealing ring (6).

3. The elliptical retainer with sealing capability according to claim 1, characterised in that the sealing ring (6) is i-shaped in cross-section, the vertical portion of the sealing ring (6) being located in the corresponding through-duct (3), the two horizontal portions of the sealing ring (6) being located on the axial sides of the flange rim (2), respectively; wherein, the diameter of the outer ring of at least one horizontal part on the sealing ring (6) positioned at one end of the outer cylindrical surface of the flange edge (2) is larger than that of the outer ring of the flange edge (2); the diameter of the inner ring of at least one horizontal part on the sealing ring (6) positioned at one end of the inner cylindrical surface of the flange edge (2) is smaller than that of the inner ring of the flange edge (2).

4. Elliptical retainer with sealing capability as claimed in claim 2 or 3, characterized in that on the flange (2) on the side close to the pocket (4) both the inner cylindrical surface and the outer cylindrical surface of the retainer body (1) are provided with a ring-shaped baffle (7), which ring-shaped baffle (7) is inclined in the direction of the sealing ring (6) on the respective side.

5. The elliptical retainer with sealing capability according to claim 4, characterised in that outside the outer cylindrical surface of the retainer body (1) the end of the ring baffle (7) is flush with the outer cylindrical surface of the largest diameter on the corresponding sealing ring (6); the end of the annular baffle (7) is flush with the inner cylindrical surface of the corresponding sealing ring (6) with the smallest diameter, inside the inner cylindrical surface of the retainer body (1).

6. The elliptical retainer with sealing capability as claimed in claim 5, characterised in that the annular baffle (7) is injection moulded in one piece with the retainer body (1).

7. Elliptical retainer with sealing capability as claimed in claim 6, characterized in that the cross-section of the ball pocket (4) is a semi-ellipse divided along the major axis.

8. The elliptical retainer with sealing performance according to claim 7, wherein the material of the seal ring (6) is nitrile rubber, and the material of the retainer body (1) is polyamide resin.