CN103883618A - Inner wave structural bearing - Google Patents
Inner wave structural bearing Download PDFInfo
- Publication number
- CN103883618A CN103883618A CN201410084814.8A CN201410084814A CN103883618A CN 103883618 A CN103883618 A CN 103883618A CN 201410084814 A CN201410084814 A CN 201410084814A CN 103883618 A CN103883618 A CN 103883618A
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- CN
- China
- Prior art keywords
- bearing
- needle
- length
- wave
- outer ring
- 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
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/34—Rollers; Needles
- F16C33/36—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces
- F16C33/363—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces with grooves in the bearing-surfaces
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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
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses an inner wave structural bearing, which comprises an outer ring, a rolling needle and an inner ring, wherein the rolling needle is arranged between the outer ring and the inner ring; the side wall of the rolling needle which is perpendicular to the direction of the end surface is wave-shaped; the contact surface of the outer ring and the rolling needle as well as that of the inner ring and the rolling needle are correspondingly wave-shaped. Compared with the prior art, the wave-like outer wall of the rolling needle has stronger meshing performance with the outer and inner rings; the friction between each other is increased and the left-right shift of the rolling needle is prevented.
Description
Technical field
The present invention relates to a kind of interior wave structure formula bearing.
Background technique
Common bearing structure is to be arranged between bearing outer ring and bearing inner race by rolling element, and rolling element is fixed by independent retainer, for isolating each rolling element, also prevents that rolling element from departing from revolving grate, and each rolling element is synchronously rotated.
But, in the manufacture and routine use of bearing, can find, manufacturing superior retainer can help rolling element better to rotate in race ring, realize due effect, but retainer perfect in workmanship needs higher manufacturing process, drop into larger, and manufacture coarse retainer after permanent use, and the rolling element that not only can wear and tear, distortion is also very easily distorted, even there is the fracture after metal fatigue, damage other parts, although this retainer manufacture cost is lower, have the problems referred to above.
Summary of the invention
The technical issues that need to address of the present invention are for above-mentioned the deficiencies in the prior art, and provide a kind of without retainer, and low cost of manufacture, has the interior wave structure formula bearing of engagement property.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Wave structure formula bearing in a kind of, comprise bearing outer ring, bearing needle and bearing inner race, described bearing needle is placed between bearing outer ring and bearing inner race, described bearing needle is wave perpendicular to the sidewall in end face direction, and the face that described bearing outer ring contacts respectively with described bearing needle with bearing inner race is corresponding wave.
As preferred version further, the length that the maximum diameter on described bearing needle and its minimum diameter differ is 1/3 to 1/4 of bearing needle minimum diameter; Be that the fluctuating end of waveform outer wall and length that low ebb end differs are 1/3 to 1/4 of bearing needle minimum diameter.
As preferred version further, the length of described bearing needle is less than the length of bearing outer ring.
As preferred version further, the length of described bearing needle is less than the length of bearing inner race.
As preferred version further, the wave structure on described awave bearing needle rises and falls highly identical.
Beneficial effect
Compared with prior art, wave structure formula bearing in one of the present invention, bearing needle is wave perpendicular to the sidewall in end face direction, the face that bearing outer ring contacts respectively with bearing needle with bearing inner race is corresponding wave, awave needle roller is respectively at bearing outer ring and inner ring engagement, contact area rate needle-type bearing is in the past larger, therefore, frictional force is larger, and there is a good engagement, removed the retainer in bearing structure in the past from, simplified the structure, also can effectively prevent needle roller long-term rotation retrodeviate from;
The length that maximum diameter on bearing needle and its minimum diameter differ is 1/3 to 1/4 of bearing needle minimum diameter, this is the stability in order to guarantee needle roller, the waviness of outer wall that is needle roller is larger, also larger with the friction of race ring, long-term under the excessive working environment of frictional force, the needle roller deformation that can be distorted, affects the normal rotation of bearing;
The length of bearing needle is less than the length of bearing outer ring, the length of bearing needle is less than the length of bearing inner race, the bearing needle of this waveform outer wall has wearing and tearing after long-term rotation is used, the intermeshing property of its needle roller and race ring can decline, there is the loosening of axial direction, the length of bearing needle is less than the length of bearing outer ring and inner ring, and needle roller can not be offset out the end face of bearing after becoming flexible yet like this;
Wave structure on awave bearing needle rises and falls highly identical, and identical fluctuating highly not only can simplified manufacturing technique, can also make race ring thickness relatively consistent, the rigidity of stable bearing circle.
A kind of grinding machine cylindrical sanding apparatus of the present invention, the outer wall of bearing needle is corrugated design, simple in structure, engagement property is good, more durable, no longer needs retainer to fix rolling element, has reduced own wt, uses extensively, is applicable to mass production.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Wherein, 1-bearing outer ring, 2-bearing needle, 3-bearing inner race.
Embodiment
Describe the preferred technical solution of the present invention in detail below in conjunction with accompanying drawing.
As shown in the figure, wave structure formula bearing in a kind of, comprise bearing outer ring 1, bearing needle 2 and bearing inner race 3, described bearing needle 2 is placed between bearing outer ring 1 and bearing inner race 3, described bearing needle 2 is wave perpendicular to the sidewall in end face direction, and described bearing outer ring 1 is corresponding wave with the face that bearing inner race 3 contacts respectively with described bearing needle 2.
The length that maximum diameter on described bearing needle 2 and its minimum diameter differ is 1/3 to 1/4 of bearing needle 2 minimum diameters.
The length of described bearing needle 2 is less than the length of bearing outer ring 1.
The length of described bearing needle 2 is less than the length of bearing inner race 3.
Wave structure on described awave bearing needle 2 rises and falls highly identical.
Wave structure formula bearing in one of the present invention, the awave fillet radian of its needle roller outer wall is generally the size of R1-R5 (cm), needle roller length is generally at 5cm-20cm, and needle roller generally has 3-6 wave gauffer, can keep so good Structural Hardware to be difficult for occurring metal fatigue.
Claims (5)
1. wave structure formula bearing in a kind, comprise bearing outer ring (1), bearing needle (2) and bearing inner race (3), described bearing needle (2) is placed between bearing outer ring (1) and bearing inner race (3), it is characterized in that: described bearing needle (2) is wave perpendicular to the sidewall in end face direction, described bearing outer ring (1) is corresponding wave with the face that bearing inner race (3) contacts respectively with described bearing needle (2).
2. wave structure formula bearing in one according to claim 1, is characterized in that: the length that the maximum diameter on described bearing needle (2) and its minimum diameter differ is 1/3 to 1/4 of bearing needle (2) minimum diameter.
3. wave structure formula bearing in one according to claim 1, is characterized in that: the length of described bearing needle (2) is less than the length of bearing outer ring (1).
4. wave structure formula bearing in one according to claim 1, is characterized in that: the length of described bearing needle (2) is less than the length of bearing inner race (3).
5. wave structure formula bearing in one according to claim 1, is characterized in that: the wave structure on described awave bearing needle (2) rises and falls highly identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084814.8A CN103883618A (en) | 2014-03-10 | 2014-03-10 | Inner wave structural bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084814.8A CN103883618A (en) | 2014-03-10 | 2014-03-10 | Inner wave structural bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103883618A true CN103883618A (en) | 2014-06-25 |
Family
ID=50952683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410084814.8A Pending CN103883618A (en) | 2014-03-10 | 2014-03-10 | Inner wave structural bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103883618A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987074A (en) * | 2015-11-09 | 2016-10-05 | 王钢 | Speed reducing bearing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US484054A (en) * | 1892-10-11 | Car-axle box | ||
| US2266888A (en) * | 1939-08-29 | 1941-12-23 | Oscar S Mccurdy | Antifriction bearing |
| CN1224126A (en) * | 1997-12-22 | 1999-07-28 | Skf诺瓦股份公司 | Roller bearing |
| DE102005041891A1 (en) * | 2005-09-03 | 2007-03-08 | Schaeffler Kg | Groove roller bearing for automotive engineering, has groove roles guided with grooves formed by groove flanks, where partition distance between pair of flanks is larger or smaller than constant distance between other pairs of flanks |
| DE102010020347A1 (en) * | 2009-06-06 | 2010-12-09 | Schaeffler Technologies Gmbh & Co. Kg | Roller bearing part e.g. helical compression spring, for use in e.g. linear bearing, has body with contact surfaces and groove rotated at rotation axis, where groove in mantle surface limits and/or divides contact surfaces |
-
2014
- 2014-03-10 CN CN201410084814.8A patent/CN103883618A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US484054A (en) * | 1892-10-11 | Car-axle box | ||
| US2266888A (en) * | 1939-08-29 | 1941-12-23 | Oscar S Mccurdy | Antifriction bearing |
| CN1224126A (en) * | 1997-12-22 | 1999-07-28 | Skf诺瓦股份公司 | Roller bearing |
| DE102005041891A1 (en) * | 2005-09-03 | 2007-03-08 | Schaeffler Kg | Groove roller bearing for automotive engineering, has groove roles guided with grooves formed by groove flanks, where partition distance between pair of flanks is larger or smaller than constant distance between other pairs of flanks |
| DE102010020347A1 (en) * | 2009-06-06 | 2010-12-09 | Schaeffler Technologies Gmbh & Co. Kg | Roller bearing part e.g. helical compression spring, for use in e.g. linear bearing, has body with contact surfaces and groove rotated at rotation axis, where groove in mantle surface limits and/or divides contact surfaces |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987074A (en) * | 2015-11-09 | 2016-10-05 | 王钢 | Speed reducing bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140625 |