CN114658758A - Structure for eliminating stress concentration of hub bearing spline spin riveting - Google Patents
Structure for eliminating stress concentration of hub bearing spline spin riveting Download PDFInfo
- Publication number
- CN114658758A CN114658758A CN202210357008.8A CN202210357008A CN114658758A CN 114658758 A CN114658758 A CN 114658758A CN 202210357008 A CN202210357008 A CN 202210357008A CN 114658758 A CN114658758 A CN 114658758A
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- China
- Prior art keywords
- inner ring
- spin riveting
- spin
- flange
- flange shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 abstract description 14
- 238000005452 bending Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
- F16C33/7806—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for spherical roller bearings
Abstract
The invention relates to a structure for eliminating stress concentration of spin riveting of a hub bearing spline, which comprises a flange shaft, an inner ring and a flange plate outer ring, wherein the right end of the flange shaft is a spin riveting end, the spin riveting end is outwards turned to press the right end surface of the inner ring, a sealing cavity is formed by the left end of the spin riveting end and the inner wall of the inner ring, and the sealing cavity is close to the right end of the inner ring. The invention also discloses a spin riveting method, firstly, the spline processing is carried out on the inner wall of the flange shaft, then the right end of the flange shaft is processed to form a spin riveting end, and the minimum outer diameter of the spin riveting end is smaller than the inner diameter of the inner ring; processing the inner side of the right end face of the inner ring to form an arc-shaped inclined plane; assembling the flange shaft, the inner ring, the flange outer ring and the steel ball, performing spin riveting on a spin riveting end of the flange shaft, forming a sealing cavity between the left end of the spin riveting end and the inner wall of the inner ring, releasing stress generated by bending the spin riveting end in the sealing cavity, attaching the outward bending of the spin riveting end to the arc inclined plane of the inner ring, pressing the right end face of the inner ring, and completing the assembly of the hub bearing.
Description
Technical Field
The invention relates to the technical field of spin riveting, in particular to a structure for eliminating stress concentration of spin riveting of a hub bearing spline, and subsequent back pulling is avoided.
Background
The third generation hub bearing is generally formed by combining a flange shaft, an inner ring, a flange outer ring and a steel ball, wherein the inner ring is arranged on the inner side of one end of the flange outer ring, the inner ring is rotatably connected with the flange outer ring, the steel ball is arranged between the flange shaft and the flange outer ring, and the inner wall of the flange shaft is subjected to spline drawing operation after the assembly is completed. The current assembly mode of the hub bearing is generally as follows: the steel ball is arranged between the flange outer ring and the flange shaft, the flange outer ring is sleeved outside the flange shaft, one end of the flange shaft protrudes out of the inner ring and the flange outer ring, the protruding part of the flange shaft is riveted at one end of the inner ring, fixed connection of the flange shaft and the inner ring is achieved, the inner ring and the flange outer ring are rotatably connected, and the steel ball is arranged between the flange outer ring and the flange shaft, so that the whole formed by the flange shaft and the inner ring is also rotatably connected with the flange outer ring. However, the existing production method of the hub bearing spline is easy to cause the spline to deform, an automobile driving shaft cannot pass through the spline, the subsequent reworking is needed, the spline is pulled again, and the production cost is high. Therefore, it is necessary to provide a stress relief structure to solve the above problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a structure for eliminating the stress concentration of the hub bearing spline spin riveting, the spline is pulled first, the spin riveting and the stress release are carried out simultaneously through a sealing cavity formed in the spin riveting process, and the generated stress is released in time after the spin riveting is finished.
The technical purpose of the invention is realized by the following technical scheme:
a structure for eliminating stress concentration of hub bearing spline spin riveting comprises a flange shaft, an inner ring and a flange plate outer ring, wherein an inner spline is formed on the inner wall of the flange shaft, the inner ring is rotatably connected with the flange plate outer ring, the flange shaft penetrates through the flange plate outer ring from left to right, the right end of the flange shaft is in contact with the inner wall of the inner ring, a steel ball is arranged between the inner ring and the flange plate outer ring, and a steel ball is also arranged between the flange shaft and the flange plate;
the right end of the flange shaft is a spin riveting end, the spin riveting end is turned outwards to compress the right end face of the inner ring, so that the inner ring is fixedly connected with the flange shaft, a sealing cavity for eliminating stress is formed by the left end of the spin riveting end and the inner wall of the inner ring, and the sealing cavity is close to the right end of the inner ring.
The sealed cavity has the effect that in the spin riveting process, stress is controlled when the spin riveting end is bent, and the stress is transmitted to the left end of the flange shaft as little as possible to deform the surface spline.
In one embodiment, the maximum radial depth of the seal cavity is 0.3-0.5 mm.
In one embodiment, the left side surface of the sealed cavity is an inclined surface.
In one embodiment, the inner side of the right end face of the inner ring is an arc-shaped inclined plane, and the spin riveting end is attached to the inner side of the right end face of the inner ring.
A spin riveting method for eliminating stress concentration of spin riveting of a hub bearing spline comprises the following specific steps:
carrying out spline broaching on the inner wall of the flange shaft;
the outer diameter of the right end of the flange shaft is the same as the inner diameter of the inner ring, the right end of the flange shaft is processed to form a spin-riveting end, and the minimum outer diameter of the spin-riveting end is smaller than the inner diameter of the inner ring;
the method comprises the steps of assembling a flange shaft, an inner ring, a flange outer ring and a steel ball, wherein the inner ring is rotatably connected with the flange outer ring, the flange shaft penetrates through the flange outer ring and the inner ring from left to right, the inner ring is nested at the right end of the flange shaft, part of the rivet rotating end protrudes out of the right end face of the inner ring, the rivet rotating end of the flange shaft is riveted in a rotating mode, the rivet rotating end bends outwards to be attached to the arc inclined face of the inner ring, the right end face of the inner ring is compressed, in the rivet rotating process, the left end of the rivet rotating end and the inner wall of the inner ring form a sealing cavity, stress generated by bending of the rivet rotating end is released in the sealing cavity, and assembling of a hub bearing is completed.
In one embodiment, the minimum outer radius of the spin riveting end is 0.3-0.5mm smaller than the inner radius of the inner ring.
In conclusion, the invention has the following beneficial effects:
according to the invention, the stress is controlled when the spin riveting end is bent through the sealing cavity, and the stress is transmitted to the left end of the flange shaft as little as possible to deform the surface spline, so that the hidden danger of spline deformation in the spin riveting process is eliminated, the rework rate is reduced, and the production cost is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged schematic view at a in fig. 1.
In the figure: 1-flange shaft, 2-inner ring, 3-flange outer ring, 4-steel ball, 5-sealing cavity, 11-spin riveting end, 21-right end face and 22-circular arc inclined plane.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
It should be noted that the directional terms such as "upper" and "lower" referred to herein are used relative to the drawings, and are only for convenience of description, and should not be construed as limiting the technical scope.
The equipment of traditional wheel hub bearing is riveted the mode soon and is generally, and the external diameter of the right-hand member of flange axle 1 is the same with the internal diameter of inner circle 2 completely, and is also, and the external diameter of the end 11 of riveting soon of flange axle 1 is the same with the internal diameter of inner circle 2, consequently rivets the in-process soon, rivets end 11 all the time with the laminating of inner circle 2 soon, can not pinpoint rivet stress concentration point soon, rivets soon and warp and has the randomness, leads to the spline to warp easily.
As shown in fig. 1 and 2. Compared with a traditional structure after spin riveting, the structure for eliminating the stress concentration of the hub bearing spline spin riveting comprises a flange shaft 1, an inner ring 2 and a flange outer ring 3, wherein an internal spline is formed on the inner wall of the flange shaft 1, the inner ring 2 is rotatably connected with the flange outer ring 3, the flange shaft 1 penetrates through the flange outer ring 3 from left to right, the right end of the flange shaft 1 is in contact with the inner wall of the inner ring 2, a steel ball 4 is arranged between the inner ring 2 and the flange outer ring 3, and the steel ball 4 is also arranged between the flange shaft 1 and the flange;
the right end of the flange shaft 1 is a spin riveting end 11, the spin riveting end 11 is turned outwards to press the right end face 21 of the inner ring 2, so that the inner ring 2 is fixedly connected with the flange shaft 1, a sealing cavity 5 for eliminating stress is formed by the left end of the spin riveting end 11 and the inner wall of the inner ring 2, and the sealing cavity 5 is close to the right end of the inner ring 2.
Specifically, as can be seen from the attached drawings, at the joint of the flange shaft 1 and the inner ring 2, the outer diameter of the flange shaft 1 located on the left side of the spin-riveting end 11 is equal to the inner diameter of the inner ring 2, that is, the spin-riveting end 11 of the flange shaft 1 is equivalent to a step, because the minimum outer diameter of the spin-riveting end 11 is smaller than the inner diameter of the inner ring 2, in the process that the spin-riveting end 11 is bent outward, because a gap exists between the spin-riveting end 11 and the inner ring 2, the position where the spin-riveting end 11 is bent first is located inside the inner ring 2, and the position where the spin-riveting end 11 is bent first is not attached to the inner wall of the inner ring 2, until the spin-riveting end 11 is bent for the second time, the spin-riveting end 11 is attached to the inner ring 2, and a sealed cavity 5 is formed between the first bending and the second bending of the spin-riveting end 11, so that stress generated when the spin-riveting end 11 is bent for the first time is released.
In addition, in the invention, the inner wall of the flange shaft 1 is firstly processed by the spline, different from the prior art, the spline processing is carried out after the combined spin riveting of the hub bearing is finished, and the broaching liquid is easily remained in the spline and the bearing sealing cavity (the ready inner cavity of the sealing component) after the hub bearing assembly is assembled, so that the subsequent bearing protection is not facilitated, the weight of the assembly is increased, and the labor intensity of workers is increased invisibly.
The invention also provides a spin riveting method for eliminating the stress concentration of spin riveting of the hub bearing spline, which comprises the following specific steps:
carrying out spline broaching on the inner wall of the flange shaft 1;
the outer diameter of the right end of the flange shaft 1 is the same as the inner diameter of the inner ring 2, the right end of the flange shaft 1 is processed to form a spin-riveting end 11, and the minimum outer diameter of the spin-riveting end 11 is smaller than the inner diameter of the inner ring 2; the minimum outer diameter of the spin-riveting end 11 means that the spin-riveting end 11 of the flange shaft 1 is in a straight state before spin-riveting operation, the outer diameters of the spin-riveting end 11 are the minimum outer diameter of the spin-riveting end 11 at this time, and the minimum outer radius of the spin-riveting end 11 is 0.3-0.5mm smaller than the inner radius of the inner ring 2, that is, before spin-riveting operation, the width of a gap between the spin-riveting end 11 and the inner wall of the inner ring 2 is 0.3-0.5mm, and the outer diameter of the stressed part of the spin-riveting end 11 is gradually increased in the spin-riveting process;
assembling a flange shaft 1, an inner ring 2, a flange outer ring 3 and a steel ball 4, wherein the inner ring 2 is rotatably connected with the flange outer ring 3, the flange shaft 1 penetrates through the flange outer ring 3 and the inner ring 2 from left to right, the inner ring 2 is nested at the right end of the flange shaft 1, part of a spin riveting end 11 protrudes out of a right end face 21 of the inner ring 2, spin riveting is carried out on the spin riveting end 11 of the flange shaft 1, the spin riveting end 11 bends outwards to be attached to an arc inclined face 22 of the inner ring 2 and tightly presses the right end face 21 of the inner ring 2, in the spin riveting process, a sealed cavity 5 is formed between the left end of the spin riveting end 11 and the inner wall of the inner ring 2, stress generated by the first bending of the spin riveting end 11 is released in the sealed cavity 5, the spin riveting end 11 bends for the second time and is attached to the right end face 21 of the inner ring 2, and the bending degree of the spin riveting end 11 is smaller at the moment, so that the generated stress is smaller, and the assembly of the hub bearing is completed.
The spin-riveting method of the present invention is described below with reference to specific examples.
S1: carrying out spline broaching on the inner wall of the flange shaft 1;
s2: processing the right end of the flange shaft 1 to form a spin-riveting end 11, wherein the minimum outer radius of the spin-riveting end 11 is 0.2mm smaller than the inner radius of the inner ring 2, and the inclination angle of the step at the left end of the spin-riveting end 11 is 135 degrees;
s3: assembling a flange shaft 1, an inner ring 2, a flange outer ring 3 and a steel ball 4, wherein the inner ring 2 is rotatably connected with the flange outer ring 3, the flange shaft 1 penetrates through the flange outer ring 3 and the inner ring 2 from left to right, the inner ring 2 is nested at the right end of the flange shaft 1, part of a spin riveting end 11 protrudes out of a right end face 21 of the inner ring 2, spin riveting is carried out on the spin riveting end 11 of the flange shaft 1, the spin riveting end 11 bends outwards to be attached to an arc inclined face 22 of the inner ring 2 and tightly presses the right end face 21 of the inner ring 2, in the spin riveting process, a sealed cavity 5 is formed between the left end of the spin riveting end 11 and the inner wall of the inner ring 2, stress generated by the first bending of the spin riveting end 11 is released in the sealed cavity 5, the second bending of the spin riveting end 11 is attached to the right end face 21 of the inner ring 2, and assembling of the hub bearing is completed.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and all technical solutions that belong to the idea of the present invention belong to the scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to those skilled in the art without departing from the principles of the present invention should also be considered as within the scope of the present invention.
Claims (4)
1. A structure for eliminating stress concentration of hub bearing spline spin riveting is characterized by comprising a flange shaft (1), an inner ring (2) and a flange outer ring (3), wherein an inner spline is formed on the inner wall of the flange shaft (1), the inner ring (2) is rotatably connected with the flange outer ring (3), the flange shaft (1) penetrates through the flange outer ring (3) from left to right, the right end of the flange shaft (1) is in contact with the inner wall of the inner ring (2), a steel ball (4) is arranged between the inner ring (2) and the flange outer ring (3), and the steel ball (4) is also arranged between the flange shaft (1) and the flange;
the right end of the flange shaft (1) is a rotary riveting end (11), the rotary riveting end (11) is turned outwards to press the right end face (21) of the inner ring (2) tightly, so that the inner ring (2) is fixedly connected with the flange shaft (1), a sealing cavity (5) for eliminating stress is formed between the left end of the rotary riveting end (11) and the inner wall of the inner ring (2), and the sealing cavity (5) is close to the right end of the inner ring (2).
2. The structure for eliminating the spin riveting stress concentration of the spline of the hub bearing according to claim 1, wherein the maximum radial depth of the sealing cavity (5) is 0.3-0.5 mm.
3. The structure for eliminating the stress concentration of the hub bearing spline spin riveting according to claim 2, wherein the left side surface of the sealing cavity (5) is an inclined surface.
4. The structure for eliminating the stress concentration of the hub bearing spline spin riveting is characterized in that the inner side of the right end surface (21) of the inner ring (2) is an arc inclined surface (22), and the spin riveting end (11) is attached to the inner side of the right end surface (21) of the inner ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210357008.8A CN114658758A (en) | 2022-04-06 | 2022-04-06 | Structure for eliminating stress concentration of hub bearing spline spin riveting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210357008.8A CN114658758A (en) | 2022-04-06 | 2022-04-06 | Structure for eliminating stress concentration of hub bearing spline spin riveting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114658758A true CN114658758A (en) | 2022-06-24 |
Family
ID=82035792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210357008.8A Pending CN114658758A (en) | 2022-04-06 | 2022-04-06 | Structure for eliminating stress concentration of hub bearing spline spin riveting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114658758A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002139060A (en) * | 2000-08-24 | 2002-05-17 | Ntn Corp | Wheel bearing device |
| JP2002274118A (en) * | 2001-03-15 | 2002-09-25 | Nsk Ltd | Rolling bearing unit for driving wheel and driving unit for wheel |
| US20030002761A1 (en) * | 2001-06-20 | 2003-01-02 | Nobuyuki Hagiwara | Rolling bearing unit for a drive wheel and a wheel driving unit |
| JP2007232116A (en) * | 2006-03-02 | 2007-09-13 | Ntn Corp | Wheel bearing device |
| JP2008019899A (en) * | 2006-07-11 | 2008-01-31 | Ntn Corp | Bearing device for wheel |
| JP2014206192A (en) * | 2013-04-11 | 2014-10-30 | Ntn株式会社 | Bearing device for wheel |
-
2022
- 2022-04-06 CN CN202210357008.8A patent/CN114658758A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002139060A (en) * | 2000-08-24 | 2002-05-17 | Ntn Corp | Wheel bearing device |
| JP2002274118A (en) * | 2001-03-15 | 2002-09-25 | Nsk Ltd | Rolling bearing unit for driving wheel and driving unit for wheel |
| US20030002761A1 (en) * | 2001-06-20 | 2003-01-02 | Nobuyuki Hagiwara | Rolling bearing unit for a drive wheel and a wheel driving unit |
| JP2007232116A (en) * | 2006-03-02 | 2007-09-13 | Ntn Corp | Wheel bearing device |
| JP2008019899A (en) * | 2006-07-11 | 2008-01-31 | Ntn Corp | Bearing device for wheel |
| JP2014206192A (en) * | 2013-04-11 | 2014-10-30 | Ntn株式会社 | Bearing device for wheel |
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Application publication date: 20220624 |