CN111664189A - Rolling Bearing Assembly - Google Patents

Abstract

The present invention relates to a rolling bearing assembly. This antifriction bearing subassembly includes bearing flange and antifriction bearing to, the bearing flange location is on antifriction bearing's bearing outer lane, and, still including setting up the bearing flange with closed elasticity loop forming element between the bearing outer lane, the radial outside embedding of closed elasticity loop forming element in the annular on the inner wall of bearing flange, and, the radial inside embedding of closed elasticity loop forming element in the recess on the outer periphery of bearing outer lane. The rolling bearing assembly has the advantages of simple part processing, high installation efficiency and high reliability.

Description

Rolling Bearing Assembly

technical field

The present invention relates to the field of mechanical parts, in particular, to a rolling bearing assembly.

Background technique

Rolling bearings are very widely used mechanical parts in various mechanical equipment, which are usually used to support journals or to support rotating parts on shafts. In one installation method of rolling bearings, it is necessary to install the flange to the outer ring of the rolling bearing first, and then install the assembled flange and rolling bearing assembly on the housing of the mechanical equipment, for example, the bolt through method The through hole on the flange and the through hole on the housing are tightened together with a nut to complete the installation of the assembly composed of the flange and the rolling bearing and the housing.

However, in the prior art, the installation method between the flange and the rolling bearing complicates the processing of the components, has low installation efficiency and low reliability.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a rolling bearing assembly, which has the advantages of simple machining of parts, high installation efficiency and high reliability.

According to an aspect of the present invention, there is provided a rolling bearing assembly comprising a bearing flange and a rolling bearing, and wherein the bearing flange is positioned on a bearing outer ring of the rolling bearing,

Also includes a closed elastic annular member disposed between the bearing flange and the bearing outer ring, the radially outer portion of the closed elastic annular member is embedded in an annular groove on the inner wall of the bearing flange, and , the radially inner portion of the closed elastic annular member is embedded in the groove on the outer circumferential surface of the bearing outer ring (120A).

According to an embodiment of the present invention, the annular groove of the bearing flange includes a flange step surface and a first connection surface, the flange step surface is concave from the first end surface of the bearing flange, and the The flange stepped surface of the bearing flange is connected with the first end surface through the first connection surface.

According to an embodiment of the present invention, the bearing flange further includes a third connection surface, and the flange step surface is connected to a second end surface of the bearing flange opposite to the first end surface through the third connection surface connect.

According to an embodiment of the invention, the closed elastic ring is designed as an O-ring.

According to an embodiment of the present invention, the radius of the circular section of the O-ring is smaller than the depth of the groove.

According to an embodiment of the present invention, the closed elastic ring has a plurality of inner and/or outer diameters.

According to an embodiment of the present invention, the closed elastic annular member is a member that is centrally symmetric with respect to any diameter of the closed elastic annular member.

According to an embodiment of the present invention, the closed elastic annular member includes a radially inner recessed portion and a radially outer convex portion passing through an equal arc in the circumferential direction, the radially inner recessed portion having a first inner diameter and a first outer diameter, and , the radially outer convex portion has a second inner diameter larger than the first inner diameter and a second outer diameter larger than the first outer diameter.

According to an embodiment of the present invention, the closed elastic annular member includes a radially inner concave portion passing through a first arc in the circumferential direction and a radially outer convex portion passing through a second arc, the radially inner concave portion having a first inner diameter and a first outer diameter, the radially outer convex portion has a second inner diameter larger than the first inner diameter and a second outer diameter larger than the first outer diameter, and the first arc is smaller than the second arc .

Therefore, in the rolling bearing assembly according to the present invention, the structures of the bearing flange and the bearing outer ring of the rolling bearing are both simple; during installation, first, the bearing flange is first positioned at a predetermined position in the axial direction of the rolling bearing, and then the closed elastic ring The parts are pushed into the groove of the bearing outer ring and the ring groove of the bearing flange from one side of the rolling bearing, so that the installation between the parts is easy to operate; in addition, there is no structure that is easy to damage or fail on each part, so each part Parts work reliably during installation and use. Therefore, the rolling bearing assembly according to the present invention has the advantages of simple processing of parts, high installation efficiency and high reliability.

Description of drawings

FIG. 1 shows a partial structural schematic diagram of a rolling bearing assembly according to an embodiment of the present invention.

Figures 2(a) and 2(b) are schematic structural diagrams of bearing flanges in a rolling bearing assembly according to an embodiment of the present invention.

FIG. 3 shows a schematic structural diagram of a rolling bearing in a rolling bearing assembly according to an embodiment of the present invention.

Fig. 4(a) shows a schematic structural diagram of a closed elastic annular member in a rolling bearing assembly according to other embodiments of the present invention.

Figure 4(b) shows a schematic structural diagram of a closed elastic annular member in a rolling bearing assembly according to other embodiments of the present invention.

Detailed ways

Specific embodiments of the rolling bearing assembly according to the present invention will be described below with reference to the accompanying drawings. The following detailed description and accompanying drawings are used to illustrate the principles of the present invention by way of example, the present invention is not limited to the described preferred embodiments, and the protection scope of the present invention is defined by the claims.

Additionally, spatially relative terms (such as "upper," "lower," "left," and "right," etc.) are used to describe the relative positional relationship of elements shown in the figures to another element. Accordingly, spatially relative terms may be applied in directions other than those shown in the figures when used. Obviously, while all of these spatially relative terms refer to the orientation shown in the figures for ease of illustration, those skilled in the art will appreciate that orientations other than those shown in the figures may be used.

FIG. 1 shows a partial structural schematic diagram of a rolling bearing assembly according to an embodiment of the present invention. A rolling bearing assembly according to an embodiment of the present invention will be described below with reference to FIG. 1 .

As shown in FIG. 1 , the rolling bearing assembly 100 includes a bearing flange 110 and a rolling bearing 120 , and the bearing flange 110 is positioned on a bearing outer ring 120A of the rolling bearing 120 . It can be understood that the rolling bearing assembly 100 can be integrally installed on the casing of the mechanical equipment. For example, a plurality of first through holes can be provided on the bearing flange 110, and a plurality of second through holes can be provided on the casing of the mechanical equipment. Passing through the first through hole on the bearing flange 110 and the second through hole on the housing and tightening with a nut, the rolling bearing assembly 100 is mounted on the housing of the mechanical device.

The rolling bearing assembly 100 may further include a first axial limit member and a second axial limit member disposed on the bearing outer ring 120A, the first axial limit member and the second axial limit member being configured to In order to confine the bearing flange 110 to a predetermined axial position of the bearing outer ring 120A. How to constrain the bearing flange at a predetermined axial position of the bearing outer ring will be described in detail below.

Figures 2(a) and 2(b) are schematic structural diagrams of bearing flanges in a rolling bearing assembly according to an embodiment of the present invention. FIG. 3 shows a schematic structural diagram of a rolling bearing in a rolling bearing assembly according to an embodiment of the present invention. The above-mentioned structures of the rolling bearing assembly 100 will be described in more detail below with reference to FIGS. 1 , 2( a ) and 2 ( b ) and FIG. 3 .

Fig. 2(a) is a perspective view of a bearing flange in a rolling bearing assembly according to an embodiment of the present invention, and Fig. 2(b) is a side cross-sectional view of the bearing flange in the rolling bearing assembly according to an embodiment of the present invention. As shown in FIGS. 2( a ) and 2 ( b ), the bearing flange 110 is a plate-like structure and includes a circular opening 1101 . It can be understood with reference to FIG. 1 that when the bearing flange 110 is installed on the rolling bearing 120 , the circular opening 1101 A shaped opening 1101 surrounds the bearing outer race 120A. 2(a) and 2(b), the circular opening 1101 includes an annular groove on the inner wall of the bearing flange 110, the annular groove includes a flange step surface 1102 and a first connecting surface 1103, the flange step The face 1102 is concave from the first end face of the bearing flange 110 (ie, the left end face of the bearing flange 110 in FIG. 2(b) ), and the flange step face 1102 of the bearing flange 110 and the first end face pass through the first end face. A connecting surface 1103 is connected, and the circular opening 1101 further includes a third connecting surface 1104. The flange step surface 1102 is connected to the second end surface of the bearing flange 110 opposite to the first end surface through the third connecting surface 1104 (ie, FIG. 2(b) the right end face of the bearing flange 110) is connected, and in the case shown in FIG. 2(b), the radial dimensions of the third connecting surface 1104 and the first connecting surface 1103 are set such that the circular opening 1101 narrows in the direction from the first end face to the second end face.

As shown in FIG. 3 , a groove 1201 , a second connecting surface 1202 and a bearing step surface 1203 are provided on the outer circumferential surface of the outer ring 120A of the rolling bearing 120 , and the bearing step surface 1203 and the groove 1201 are connected by the second connecting surface 1202 . 3 , in the radial direction of the rolling bearing, the bearing step surface 1203 is higher than the second connecting surface 1202 , and the second connecting surface 102 is higher than the bottom surface of the groove 1201 .

Returning to FIG. 1 , the rolling bearing assembly 100 according to the present invention further includes a closed elastic annular member disposed between the bearing flange 110 and the bearing outer ring 120A, the radially outer portion of the closed elastic annular member is embedded in the bearing flange 110 In the annular groove on the inner wall, and the radially inner portion of the closed elastic annular member is embedded in the groove 1201 on the outer circumferential surface of the bearing outer ring 120A. In the embodiment shown in FIG. 1 , the closed elastic annular member is specifically an O-ring 130 , and in the embodiment shown in FIG. 1 , the O-ring 130 is used as a first axial limit member, which The O-ring 130 is provided as a radially inner groove 1201 on the outer circumferential surface of the outer ring 120A of the bearing 120 , a radially outer annular groove on the bearing flange 110 (consisting of the flange step surface 1102 and the first connecting surface 1103 ), in the embodiment shown in FIG. 1 , the space defined by the groove 1201 , the first connecting surface 1103 and the flange step surface 1102 is shown as a substantially rectangular shape in cross section in the axial direction of the rolling bearing 120 . The second axial limiting member includes a bearing step surface 1203 , and the bearing step surface 1203 is opposite to the right end surface of the flange 110 . The O-ring 130 and the bearing step surface 1203 are used to constrain the bearing flange 110 at a predetermined position in the axial direction of the bearing outer ring 120A of the rolling bearing 120 . Specifically, the O-ring 130 is configured to prevent the flange step surface 1102 Beyond the O-ring 130 and away from the bearing outer ring 120A from the first axial direction of the rolling bearing 120 (ie, the leftward direction in FIG. 1 ), and the bearing stepped surface 1203 is configured to prevent the bearing flange 110 (specifically, The right end surface of the bearing flange) goes beyond the bearing step surface 1203 and leaves the bearing outer ring 120A from the second axial direction of the rolling bearing 120 (ie, the rightward direction in FIG. 1 ), and the first axial direction is different from the axial first direction. The two directions are opposite, so that the bearing flange 110 cannot move away from the predetermined axial position of the bearing outer ring 120A. Those skilled in the art can understand that, in order to ensure that the flange stepped surface 1102 cannot pass over the O-ring 130 and leave the bearing outer ring 120A in the axial first direction of the rolling bearing 120 and the right end face of the bearing flange cannot pass over the bearing stepped surface 1203 The second axial direction of the rolling bearing 120 is away from the bearing outer ring 120A. In the rolling bearing assembly 100 , the O-ring 130 and the bearing step surface 1203 will be designed to be higher than the third connecting surface 1104 in the radial direction. In addition, those skilled in the art can understand that the O-ring 130 and the bearing step surface 1203 are used as a limiting member, and there will be a certain clearance between the O-ring 130 and the bearing flange 110 in the axial direction to ensure that the O-ring 130 is installed on the bearing outer ring 120A. In the correct design position, the inner surface of the O-ring 130 is in close contact with the bearing outer ring 120A of the rolling bearing 120 in the axial direction of the rolling bearing 120 . In addition, those skilled in the art can understand that in the rolling bearing assembly according to the present invention, the second axial limiting member is not limited to the bearing step surface, and can prevent the bearing flange from leaving the bearing outer ring from the second axial direction of the rolling bearing. Other arrangements may be used, for example, the bearing step surface may be replaced by a claw extending from the bearing outer race.

Therefore, in the rolling bearing assembly according to the present invention, the structures of the bearing flange and the bearing outer ring of the rolling bearing are both simple; during installation, first, the bearing flange is positioned at a predetermined position in the axial direction of the rolling bearing, and then the O-ring is Pushing into the space defined by the groove of the bearing outer ring, the first connecting surface of the bearing flange and the flange step surface from one side of the rolling bearing makes the installation between parts easy to operate; in addition, there is no easy damage on each part or failure of the structure, therefore, the various parts can work reliably during installation and use. Therefore, the rolling bearing assembly according to the present invention has the advantages of simple machining of parts, high installation efficiency and high reliability.

Furthermore, although in the embodiments described above with reference to the drawings, the closed elastic ring is used as the first axial stop and cooperates with the second axial stop to limit the bearing flange to the outer ring of the bearing at the predetermined location. However, those skilled in the art can understand that this is only an example, and the closed elastic annular member in the rolling bearing assembly according to the present invention may also not be used together with the second axial limit member, but only serve as a stop member to prevent the bearing The flange goes over it and falls off the bearing, which can be used, for example, when the rolling bearing assembly according to the invention is mounted in a direction that is rotated 90 degrees to the right of the arrangement shown in FIG. 1 (eg the arrangement shown in FIG. 1 ). The direction is specifically installed on the side of the machine housing, and when it is rotated 90 degrees to the right, it is specifically installed on the top surface of the machine housing), in this case, due to the effect of gravity, there is no need to provide such as bearing step surface 1203 Such a structure as the second axial limiter.

According to a preferred embodiment of the present invention, the axial dimension of the third connecting surface 1104 is designed to be smaller than the axial dimension of the second connecting surface 1202 of the rolling bearing 120, so that the flange stepped surface 1102 will not hinder the installation of the O-ring 130 to the Correct design position of bearing outer ring 120A. However, those skilled in the art can understand that the above preferred embodiments are only examples, and the rolling bearing assembly according to the present invention is not limited thereto. The axial dimension of the connecting surface 1104 can also be designed to be equal to the axial dimension of the second connecting surface 1202 of the rolling bearing 120 .

According to a preferred embodiment of the present invention, the radius of the circular section of the O-ring 130 can be designed to be smaller than the depth of the groove 1201 to prevent the O-ring 130 from falling off the groove 1201 when subjected to external force. According to yet another preferred embodiment of the present invention, the radius of the circular section of the O-ring 130 can also be designed based on the radial clearance between the bearing flange 110 and the bearing outer ring 120A, that is, even if the bearing flange 110 is When the radial clearance between the rings 120A is at its maximum value, in the situation shown in FIG. 1 , the O-ring 130 is still radially higher than the third connecting surface 1104 to prevent the flange step surface 1102 from passing over the O-ring 130 And the bearing outer ring 120A is separated from the first axial direction of the rolling bearing 120 .

The rolling bearing assembly according to the present invention is not limited to the above-described embodiments. In the rolling bearing assembly according to the present invention, it is not limited to use only the O-ring 130, and the rolling bearing according to the present invention may use any closed elastic annular member other than the O-ring to replace the O-ring described in the above embodiments. The closed elastic ring may be a member having a plurality of inner and/or outer diameters, and be centrally symmetric with respect to any diameter of the closed elastic ring. For example, Fig. 4(a) and Fig. 4(b) show a schematic structural diagram of a closed elastic annular member in a rolling bearing assembly according to other embodiments of the present invention, the closed elastic annular member can be made of a metal material and processed by a stamping process . As shown in FIG. 4( a ), the closed elastic annular member may include a radially inner concave portion 1301A and a radially outer convex portion 1301B passing through equal arcs in the circumferential direction, and the radially inner concave portion 1301A has a first inner diameter and a first outer diameter , and the radially outer convex portion 1301B has a second inner diameter larger than the first inner diameter and a second outer diameter larger than the first outer diameter; as shown in FIG. 4(b), the closed elastic annular member may be included in the circumferential direction The radially inner concave portion 1302A passing through the first arc and the radially outer convex portion 1302B passing through the second arc, the radially inner concave portion 1302A has a first inner diameter and a first outer diameter, and the radially outer convex portion 1302B has a larger diameter than the first inner diameter. The second inner diameter and the second outer diameter are greater than the first outer diameter, and, and the first arc is less than the second arc.

As mentioned above, although the exemplary embodiments of the present invention have been described in the description with reference to the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments, and the protection scope of the present invention should be defined by the claims and their equivalents.

Claims (9)

1. A rolling bearing assembly (100) comprising a bearing flange (110) and a rolling bearing (120), and wherein the bearing flange (110) is positioned on a bearing outer ring (120A) of the rolling bearing (120),

it is characterized in that the preparation method is characterized in that,

the bearing comprises a bearing flange (110) and a bearing outer ring (120A), and further comprises a closed elastic ring piece arranged between the bearing flange (110) and the bearing outer ring (120A), wherein the radial outer part of the closed elastic ring piece is embedded into a ring groove on the inner wall of the bearing flange (110), and the radial inner part of the closed elastic ring piece is embedded into a groove (1201) on the outer circumferential surface of the bearing outer ring (120A).

2. The rolling bearing assembly (100) of claim 1, wherein the ring groove of the bearing flange (110) comprises a flange step surface (1102) and a first connection surface (1103), the flange step surface (1102) being recessed from a first end surface of the bearing flange (110), and the flange step surface (1102) and the first end surface of the bearing flange (110) being connected by the first connection surface (1103).

3. The rolling bearing assembly (100) of claim 2, wherein the bearing flange (110) further comprises a third connection face (1104), the flange step face (1102) being connected to a second end face of the bearing flange (110) opposite the first end face by the third connection face (1104).

4. Rolling bearing assembly (100) according to claim 3, wherein the closed elastic ring element is designed as an O-ring (130).

5. Rolling bearing assembly (100) according to claim 4, wherein the radius of the circular cross section of the O-ring (130) is smaller than the depth of the groove (1201).

6. Rolling bearing assembly (100) according to claim 3, wherein the closed elastomeric ring has a plurality of inner and/or outer diameters.

7. Rolling bearing assembly (100) according to claim 6, wherein the closed elastic ring piece is a member that is centrosymmetric with respect to any diameter of the closed elastic ring piece.

8. The rolling bearing assembly (100) according to claim 7, wherein the closed elastic ring piece comprises a radially inner recess (1301A) and a radially outer projection (1301B) which circumferentially go through equal arcs, the radially inner recess (1301A) having a first inner diameter and a first outer diameter, and the radially outer projection (1301B) having a second inner diameter larger than the first inner diameter and a second outer diameter larger than the first outer diameter.

9. The rolling bearing assembly (100) according to claim 7, wherein the closed elastomeric ring comprises a radially inner recess (1302A) circumferentially passing through a first arc and a radially outer protrusion (1302B) circumferentially passing through a second arc, the radially inner recess (1302A) having a first inner diameter and a first outer diameter, the radially outer protrusion (1302B) having a second inner diameter greater than the first inner diameter and a second outer diameter greater than the first outer diameter, and the first arc being less than the second arc.

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