CN219605822U - Plane combined type bidirectional thrust angular contact ball bearing - Google Patents
Plane combined type bidirectional thrust angular contact ball bearing Download PDFInfo
- Publication number
- CN219605822U CN219605822U CN202321319633.XU CN202321319633U CN219605822U CN 219605822 U CN219605822 U CN 219605822U CN 202321319633 U CN202321319633 U CN 202321319633U CN 219605822 U CN219605822 U CN 219605822U
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- outer ring
- bearing
- raceway
- angular contact
- contact ball
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The utility model relates to the technical field of bearings, in particular to a plane combined type bidirectional thrust angular contact ball bearing, wherein an inner ring is provided with a first inner raceway and a second inner raceway which are oppositely arranged in the axial direction of the bearing, and a first mounting hole is formed in the inner ring along the radial direction of the bearing; the first outer ring is provided with a first outer raceway, the first outer raceway and the first inner raceway are opposite to each other in the axial direction of the bearing, a second mounting hole is formed in the first outer ring along the axial direction of the bearing, and the first outer ring is in a flat plate shape; the first ball rollers are arranged between the first outer raceway and the first inner raceway; the second outer ring is fixed on the first outer ring and is provided with a second outer raceway, and the second outer raceway and the second inner raceway are opposite in the axial direction of the bearing; the second ball rollers are mounted between the second outer race and the second inner race. The utility model adopts a full-load structure without a retainer, and can bear larger radial load and bending moment; the outer ring is formed by combining two parts, and is light in weight.
Description
Technical Field
The utility model relates to the technical field of bearings, in particular to a plane combined type bidirectional thrust angular contact ball bearing.
Background
The bearing plays roles of supporting rotating or swinging parts, reducing friction and guaranteeing rotation precision in a mechanical structure, the bearing in the equipment is always in severe working conditions such as high humidity, heavy load and the like, and the running state of the bearing directly influences the overall performance, so that a bearing product with good service performance and high reliability is urgently needed to be developed.
The bearing used by the steering engine is required to bear steering engine hinge moment, bending moment and the like formed by pneumatic load. The existing angular contact ball bearing structure is more conventional and generally comprises an inner ring, an outer ring and rolling bodies, wherein the inner ring and the outer ring are of an integral disc-like structure, and the disc-like structure exists independently of a mechanical structure, namely, the bearing is required to be installed on other parts, and the other parts are utilized for installation and mechanical positioning. The structure is complex, and the reliability is low.
Disclosure of Invention
In view of the defects in the prior art, the utility model provides a plane combined type bidirectional thrust angular contact ball bearing which adopts a retainer-free full-loading structure and can bear larger radial load and bending moment; the outer ring is formed by combining two parts, and is light in weight.
In order to achieve the above purpose, the technical scheme provided by the utility model is that the planar combined bidirectional thrust angular contact ball bearing comprises an inner ring, a first outer ring, a first ball roller, a second outer ring and a second ball roller; the inner ring is provided with a first inner raceway and a second inner raceway which are arranged in opposite directions in the axial direction of the bearing, and a first mounting hole is formed in the inner ring along the radial direction of the bearing; the first outer ring is provided with a first outer raceway, the first outer raceway and the first inner raceway are opposite to each other in the axial direction of the bearing, a second mounting hole is formed in the first outer ring along the axial direction of the bearing, and the first outer ring is in a flat plate shape; a first ball roller of a first type is mounted between the first outer raceway and the first inner raceway; the second outer ring is fixed on the first outer ring, and is provided with a second outer raceway, and the second outer raceway and the second inner raceway are opposite to each other in the axial direction of the bearing; the second ball rollers are mounted between the second outer race and the second inner race.
Further, the inner ring comprises a first connecting portion, a transition portion and a second connecting portion, and the outer diameters of the first connecting portion, the transition portion and the second connecting portion are sequentially increased.
Further, the first connection portion is provided with the first mounting hole.
Further, the second outer ring comprises a third connecting portion in clearance fit with the transition portion, and a fourth connecting portion fixed on the periphery of the third connecting portion.
Further, the first outer ring is detachably mounted on the second outer ring, and an inner cavity is formed by the side wall of the first outer ring facing the third connecting portion, the side wall of the third connecting portion facing the first outer ring, and the side wall of the fourth connecting portion facing the inner ring.
Further, the second connecting portion of the inner ring is at least partially accommodated in the inner cavity.
Further, the gap between the transition portion and the third connecting portion ranges from 0.4 mm to 0.7mm.
Further, the first outer ring comprises a rectangular body, and the rectangular body is provided with a first circular mounting hole and a plurality of second mounting holes.
Further, a second circular mounting hole is formed in the central axis of the second outer ring.
Further, the first circular mounting hole and the second circular mounting hole are coaxially arranged.
The utility model has the beneficial effects that: the full-loading structure without the retainer is adopted, so that the radial load and bending moment can be borne greatly; the outer ring is arranged to be a detachable structure combining the first outer ring and the second outer ring, the second outer ring is arranged to be a flat thin wall, the design is light, and the design strength requirement is met.
Drawings
FIG. 1 is a schematic view of a planar combined type bidirectional thrust angular contact ball bearing according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a front structure of a planar combined type bidirectional thrust angular contact ball bearing according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a back surface structure of a planar combined type bidirectional thrust angular contact ball bearing according to an embodiment of the present utility model;
FIG. 4 is a schematic view illustrating a structure of an inner ring according to an embodiment of the present utility model;
FIG. 5 is a schematic structural diagram of a first outer ring and a second outer ring according to an embodiment of the present utility model;
in the figure: 100. an inner race 110, a first inner race 120, a second inner race 130, a first mounting hole 140, a first connecting portion 150, a transition portion 160, a second connecting portion,
200. a first outer race 210, a first outer raceway 220, a second mounting hole 230, a rectangular body 231, a first circular mounting hole,
300. a first type of ball roller is provided,
400. a second outer race 410, a second outer race 420, a third connection portion 430, a fourth connection portion 440, a second circular mounting hole,
500. a second kind of ball roller, which is provided with a first ball roller,
x, axial direction, y, radial direction, a and inner cavity.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
Referring to fig. 1, a planar combined type bidirectional thrust angular contact ball bearing includes an inner race 100, a first outer race 200, a first ball-type roller 300, a second outer race 400, and a second ball-type roller 500, the first ball-type roller 300 being installed between the first outer race 200 and the inner race 100, and the second ball-type roller 500 being installed between the second outer race 400 and the inner race 100.
Referring to fig. 2 in combination, the inner ring 100 has a first inner raceway 110 and a second inner raceway 120 arranged opposite to each other in an axial direction x of the bearing, and a first mounting hole 130 is formed in the inner ring 100 along a radial direction y of the bearing; the first outer ring 200 has a first outer raceway 210, the first outer raceway 210 and the first inner raceway 110 are arranged opposite to each other in the axial direction x of the bearing, and a second mounting hole 220 is formed in the first outer ring 200 along the axial direction x of the bearing; the first ball rollers 300 are mounted between the first outer race 210 and the first inner race 110; the first outer ring 200 is flat; the second outer ring 400 is fixed to the first outer ring 200, the second outer ring 400 having a second outer raceway 410, the second outer raceway 410 being opposite to the second inner raceway 120 in the axial direction x of the bearing; the second ball rollers 500 are mounted between the second outer race 410 and the second inner race 120.
The plane combined type bidirectional thrust angular contact ball bearing adopts a retainer-free full-load structure, and can bear larger radial load and bending moment; the outer ring is arranged to be a detachable structure combining the first outer ring 200 and the second outer ring 400, and the second outer ring 400 is arranged to be a flat thin wall, is light in weight and meets the design strength requirement. The first inner raceway 110 and the second inner raceway 120 are arranged on the axial direction x of the bearing in the inner ring 100, the two raceways are opposite, and the first ball rollers 300 and the second ball rollers 500 are kept on two sides of the inner ring 100 in the axial direction x by utilizing the outer raceways respectively arranged on the first outer ring 200 and the second outer ring 400, so that rolling is reliable, and the rolling limiting speed is improved to a certain extent. The bearing material is preferably stainless steel, and the whole is corrosion-proof and rust-proof, and the fixing manner of the first outer ring 200 and the second outer ring 400 is not limited, and the bearing material may be engaged by a cross-grooved countersunk head screw.
In an embodiment, the inner ring 100 includes a first connection portion 140, a transition portion 150, and a second connection portion 160, and the outer diameters of the first connection portion 140, the transition portion 150, and the second connection portion 160 sequentially increase.
The inner ring 100 of the planar combined bidirectional thrust angular contact ball bearing has a first connection portion 140, the outer diameter of which is smaller than that of the transition portion 150, the first connection portion 140 can be regarded as a part of the shaft, and the bearing can be regarded as a part of the shaft due to the existence of the first connection portion 140, so that the bearing is more reliable when being connected with an external connection member, in addition, the outer ring adopts a mode of combining the first outer ring 200 with the second outer ring 400, the first outer ring 200 is in a flat plate shape, and the connection reliability of the outer ring and external equipment is increased. Above, the inner ring 100 and the shaft are designed into a whole, the outer ring and the steering engine interface are designed into an integrated planar plate structure, the reliability of the bearing is enhanced from two angles, the bearing not only plays a role of rotation, but also plays a role of component mounting, mechanical positioning and other functions as a structural component.
In particular, in one embodiment, the first connection portion 140 is provided with a first mounting hole 130 for assembly with an external device.
In one embodiment, the second outer ring 400 includes a third connection portion 420 that is clearance fit with the transition portion 150 and a fourth connection portion 430 that is fixed to the outer periphery of the third connection portion 420.
In an embodiment, the first outer ring 200 is detachably mounted on the second outer ring 400, and an inner cavity a is defined by a sidewall of the first outer ring 200 facing the third connecting portion 420, a sidewall of the third connecting portion 420 facing the first outer ring 200, and a sidewall of the fourth connecting portion 430 facing the inner ring 100.
In one embodiment, second connecting portion 160 of inner ring 100 is at least partially received in inner cavity a.
In one embodiment, the gap between the transition portion 150 and the third connection portion 420 ranges from 0.4 mm to 0.7mm.
The planar combined bidirectional thrust angular contact ball bearing adopts a full-load structure without a retainer, and when the clearance between the transition part 150 and the third connecting part 420 requires the bearing to bear the overturning moment, the transition part 150 and the third connecting part 420 do not interfere. Meanwhile, grease inside the bearing is not easy to flow out at the gap between the bearing and the bearing. Preferably, the gap ranges from 0.4 to mm mm to 0.7mm.
It should be noted that, referring to fig. 1 specifically, a gap is also between the first outer ring 200 and the inner ring 100 and one end far from the first connection portion 140, where the gap is an installation interface of the bearing and the steering engine, and a certain space is reserved for inserting the power interface to drive the bearing to rotate. The processing of the first outer ring 200 and the inner ring 100 is closely related to the steering engine installation, the installation holes of the first outer ring 200 are symmetrically positioned according to the bearing center line, and in addition, the installation holes between the first outer ring 200 and the second outer ring 400 can be processed simultaneously to ensure the whole dimensional tolerance precision, and the weight is lower than 1kg.
In an embodiment, the first outer ring 200 includes a rectangular body 230, and the rectangular body 230 is provided with a first circular mounting hole 231 and a plurality of second mounting holes 220.
In one embodiment, the second outer ring 400 has a second circular mounting hole 440 formed in the central axis thereof.
In one embodiment, the first circular mounting hole 231 is coaxially disposed with the second circular mounting hole 440.
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," "connected," "secured," 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 being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher 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.
Claims (10)
1. A planar combined bidirectional thrust angular contact ball bearing is characterized in that: comprising
The bearing comprises an inner ring, a first bearing and a second bearing, wherein the inner ring is provided with a first inner raceway and a second inner raceway which are oppositely arranged in the axial direction of the bearing, and a first mounting hole is formed in the inner ring along the radial direction of the bearing;
the first outer ring is provided with a first outer raceway, the first outer raceway and the first inner raceway are opposite to each other in the axial direction of the bearing, a second mounting hole is formed in the first outer ring along the axial direction of the bearing, and the first outer ring is in a flat plate shape;
a first ball roller of the first type mounted between the first outer raceway and the first inner raceway;
the second outer ring is fixed on the first outer ring and is provided with a second outer raceway, and the second outer raceway and the second inner raceway are opposite to each other in the axial direction of the bearing; and
and the second ball rollers are arranged between the second outer raceway and the second inner raceway.
2. The planar combined bidirectional thrust angular contact ball bearing of claim 1, wherein: the inner ring comprises a first connecting portion, a transition portion and a second connecting portion, and the outer diameters of the first connecting portion, the transition portion and the second connecting portion are sequentially increased.
3. The planar combined bidirectional thrust angular contact ball bearing of claim 2, wherein: the first connecting portion is provided with the first mounting hole.
4. The planar combined bidirectional thrust angular contact ball bearing of claim 2, wherein: the second outer ring comprises a third connecting part in clearance fit with the transition part and a fourth connecting part fixed on the periphery of the third connecting part.
5. The planar combined type bidirectional thrust angular contact ball bearing according to claim 4, wherein: the first outer ring is detachably mounted on the second outer ring, and an inner cavity is formed by the side wall of the first outer ring facing the third connecting portion, the side wall of the third connecting portion facing the first outer ring and the side wall of the fourth connecting portion facing the inner ring.
6. The planar combined type bidirectional thrust angular contact ball bearing according to claim 5, wherein: the second connecting portion of the inner ring is at least partially accommodated in the inner cavity.
7. The planar combined type bidirectional thrust angular contact ball bearing according to claim 5, wherein: the gap between the transition portion and the third connecting portion ranges from 0.4 to mm mm to 0.7mm.
8. The planar combined bidirectional thrust angular contact ball bearing of claim 1, wherein: the first outer ring comprises a rectangular body, and the rectangular body is provided with a first circular mounting hole and a plurality of second mounting holes.
9. The planar combined bidirectional thrust angular contact ball bearing of claim 8, wherein: and a second circular mounting hole is formed in the central axis of the second outer ring.
10. The planar combined bidirectional thrust angular contact ball bearing of claim 9, wherein: the first circular mounting hole and the second circular mounting hole are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321319633.XU CN219605822U (en) | 2023-05-29 | 2023-05-29 | Plane combined type bidirectional thrust angular contact ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321319633.XU CN219605822U (en) | 2023-05-29 | 2023-05-29 | Plane combined type bidirectional thrust angular contact ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219605822U true CN219605822U (en) | 2023-08-29 |
Family
ID=87755123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321319633.XU Active CN219605822U (en) | 2023-05-29 | 2023-05-29 | Plane combined type bidirectional thrust angular contact ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219605822U (en) |
-
2023
- 2023-05-29 CN CN202321319633.XU patent/CN219605822U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |