CN101818761A - Needle bearing for throttle and preparation method thereof - Google Patents
Needle bearing for throttle and preparation method thereof Download PDFInfo
- Publication number
- CN101818761A CN101818761A CN201010153958A CN201010153958A CN101818761A CN 101818761 A CN101818761 A CN 101818761A CN 201010153958 A CN201010153958 A CN 201010153958A CN 201010153958 A CN201010153958 A CN 201010153958A CN 101818761 A CN101818761 A CN 101818761A
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- CN
- China
- Prior art keywords
- outer ring
- needle bearing
- crimping
- throttle
- finished product
- 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
-
- 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
- F16C19/44—Needle bearings
- F16C19/46—Needle bearings with one row or needles
- F16C19/466—Needle bearings with one row or needles comprising needle rollers and an outer ring, i.e. subunit without inner ring
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a needle bearing and a preparation method thereof, in particular to a needle bearing for a throttle and a preparation method thereof. The needle bearing for the throttle comprises a two-baffle-edge outer ring, a holder and rolling needles, wherein the two-baffle-edge outer ring contains a bottom edge and a curling; sealing rings are separately arranged between the bottom edge and the rolling needles and between the curling and the rolling needles in the two-baffle-edge outer ring, and the hardnesses of the bottom edge and curling of the two-baffle-edge outer ring are equal. The preparation method of the needle bearing for the throttle is that after the outer ring, the holder and the rolling needles are assembled, bulk heat treatment is performed, thus ensuring the hardnesses of the curling end and the bottom end of the drawn cup to be equal and effectively avoiding the phenomenon of aperture reduction of the curling end when the needle bearing is assembled.
Description
Technical field
The present invention relates to a kind of needle bearing and manufacture method thereof, particularly a kind of needle bearing for throttle and manufacture method thereof.
Background technique
Be used for integral type outer race that needle bearing on the closure of motor comprises stamping forming two ends band rib, be arranged on retainer and needle roller in the outer ring, its conventional production technology is:
A. part preparation;
1. the outer ring makes: blank; Drawing: get the tubular outer ring through three road drawings; Press the end: one end suppresses the base in the tubular outer ring; Cut the end: the base is cut to required size; Transition: the outer ring is intended carrying out the crimping end carry out the transition drawing, wall thickness is drawn thin so that carry out crimping smoothly; Cut edge: cut edge according to end hem width degree to intending carrying out crimping end outer ring; Heat treatment: the outer ring after cutting edge is heat-treated, and the outer ring heat treatment process is to clean tempering again behind the carburizing and quenching, the outer ring is intended the crimping end again and carries out high frequency annealing, reduces the hardness of crimping end, gets the outer ring semi-finished product;
2. needle roller is made: machining, heat treatment, fine finishing;
3. retainer is made: impact briquetting;
D. assembling; After packing into needle roller, retainer and the seal ring made in the semi-finished product of outer ring, crimping gets the needle bearing finished product.
Because the aperture of the bearing saddle bore of needle bearing for throttle is less, needle bearing drawn cup when assembling is subjected to bigger pressure, the needle bearing that conventional production process is produced, before assembling the crimping end has been carried out high frequency annealing, the hardness ratio of its crimping is low than the base, and for ease of crimping, the wall thickness of other parts of the wall ratio outer ring of crimping end, therefore when needle bearing assembled, the phenomenon that the aperture dwindles can appear in the crimping end, thereby influences the working life of needle bearing.
Summary of the invention
The technical problem to be solved in the present invention is: solve the existing needle bearing for throttle technical problem that the crimping stomidium directly dwindles when assembling, the invention provides a kind of needle bearing for throttle and manufacture method thereof, it goes to carry out bulk heat treatment after outer ring, retainer and needle roller assemble, the hardness that has guaranteed drawn cup crimping end and bottom end is identical, and the crimping stomidium directly dwindles the generation of phenomenon when effectively having avoided the needle bearing assembling.
The technical solution adopted for the present invention to solve the technical problems is: a kind of needle bearing for throttle, have two ribs outer ring, retainer and needle roller, two ribs outer ring has base and crimping, between inherent base, two ribs outer ring and needle roller and crimping and needle roller seal ring is housed respectively, the base of two ribs outer ring is identical with the hardness of crimping.
The manufacture method of aforesaid needle bearing for throttle comprises following process step:
A. part preparation;
1. the outer ring makes: through blank, the end, pressed in drawing, cuts the end, cut edge the outer ring semi-finished product;
2. needle roller is made: machining, heat treatment, fine finishing;
3. retainer is made: impact briquetting;
B. assembling; After packing into needle roller, retainer and the seal ring made in the semi-finished product of outer ring, crimping gets the needle bearing semi-finished product;
C. heat treatment: the needle bearing semi-finished product that assemble are carried out whole carburizing and quenching clean tempering, get the needle bearing finished product.
The invention has the beneficial effects as follows, needle bearing for throttle of the present invention and manufacture method thereof, after assembling, outer ring, retainer and needle roller go to carry out bulk heat treatment, the hardness that has guaranteed drawn cup crimping end and bottom end is identical, and the crimping stomidium directly dwindles the generation of phenomenon when effectively having avoided the needle bearing assembling.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of needle bearing for throttle of the present invention.
Embodiment
Needle bearing for throttle of the present invention as shown in Figure 1, have two ribs outer ring 1, retainer 3 and needle roller 2, two ribs outer ring 1 has base 1-1 and crimping 1-2, two ribs outer ring 1 inherent base 1-1 and needle roller 2 and crimping 1-2 and 2 of needle rollers are equipped with seal ring 4 respectively, and the base 1-1 of two ribs outer ring 1 is identical with the hardness of crimping 1-2.
The manufacture method of aforesaid needle bearing for throttle comprises following process step:
A. part preparation;
1. the outer ring makes: through blank, the end, pressed in drawing, cuts the end, cut edge the outer ring semi-finished product;
2. needle roller is made: machining, heat treatment, fine finishing;
3. retainer is made: impact briquetting;
B. assembling; After packing into needle roller, retainer and the seal ring made in the semi-finished product of outer ring, crimping gets the needle bearing semi-finished product;
C. heat treatment: the needle bearing semi-finished product that assemble are carried out whole carburizing and quenching clean tempering, get the needle bearing finished product.
Claims (2)
1. needle bearing for throttle, have two ribs outer ring (1), retainer (3) and needle roller (2), two ribs outer ring has base (1-1) and crimping (1-2), between inherent base, two ribs outer ring (1) (1-1) and needle roller (2) and crimping (1-2) and needle roller (2) seal ring (4) is housed respectively, it is characterized in that: the base (1-1) of two ribs outer ring (1) is identical with the hardness of crimping (1-2).
2. the manufacture method of needle bearing for throttle according to claim 1 is characterized in that comprising following process step:
A. part preparation;
1. the outer ring makes: through blank, the end, pressed in drawing, cuts the end, transition, cut edge the outer ring semi-finished product;
2. needle roller is made: machining, heat treatment, fine finishing;
3. retainer is made: impact briquetting;
B. assembling; After packing into needle roller, retainer and the seal ring made in the semi-finished product of outer ring, crimping gets the needle bearing semi-finished product;
C. heat treatment: the needle bearing semi-finished product that assemble are carried out whole carburizing and quenching cleaning tempering get the needle bearing finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010153958A CN101818761A (en) | 2010-04-23 | 2010-04-23 | Needle bearing for throttle and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010153958A CN101818761A (en) | 2010-04-23 | 2010-04-23 | Needle bearing for throttle and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101818761A true CN101818761A (en) | 2010-09-01 |
Family
ID=42653983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010153958A Pending CN101818761A (en) | 2010-04-23 | 2010-04-23 | Needle bearing for throttle and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101818761A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909531A (en) * | 2012-11-07 | 2013-02-06 | 苏州新豪轴承有限公司 | Workpiece processing method |
| CN103443422A (en) * | 2011-03-10 | 2013-12-11 | 谢夫勒科技股份两合公司 | Needle sleeve, in particular for pivotably mounting the throttle valve shaft of a control device for recirculating exhaust gas in internal combustion engines |
| CN104061327A (en) * | 2014-05-28 | 2014-09-24 | 史建伟 | Oil seal and bearing comprising same |
| CN105782248A (en) * | 2015-12-23 | 2016-07-20 | 江苏南方轴承股份有限公司 | Oil seal and bearing including oil seal |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1034932B (en) * | 1957-01-30 | 1958-07-24 | Schaeffler Ohg Industriewerk | Process for the manufacture of needle roller bearings with a cage axially positioned between hardened ribs |
| CN1426490A (en) * | 2000-04-22 | 2003-06-25 | Ina-谢夫勒两合公司 | Rolling bearing component |
| CN2736593Y (en) * | 2004-08-27 | 2005-10-26 | 史建伟 | Automobile starting motor bearing |
| CN101395392A (en) * | 2006-03-07 | 2009-03-25 | 谢夫勒两合公司 | Ready-to-install needle bearing comprising an inner and outer ring |
| CN101649379A (en) * | 2009-08-21 | 2010-02-17 | 常州苏特轴承制造有限公司 | Integrated quenching process of drawn cup needle roller bearing |
| CN201651066U (en) * | 2010-04-23 | 2010-11-24 | 江苏南方轴承股份有限公司 | Needle roller bearing for throttle |
-
2010
- 2010-04-23 CN CN201010153958A patent/CN101818761A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1034932B (en) * | 1957-01-30 | 1958-07-24 | Schaeffler Ohg Industriewerk | Process for the manufacture of needle roller bearings with a cage axially positioned between hardened ribs |
| CN1426490A (en) * | 2000-04-22 | 2003-06-25 | Ina-谢夫勒两合公司 | Rolling bearing component |
| CN2736593Y (en) * | 2004-08-27 | 2005-10-26 | 史建伟 | Automobile starting motor bearing |
| CN101395392A (en) * | 2006-03-07 | 2009-03-25 | 谢夫勒两合公司 | Ready-to-install needle bearing comprising an inner and outer ring |
| CN101649379A (en) * | 2009-08-21 | 2010-02-17 | 常州苏特轴承制造有限公司 | Integrated quenching process of drawn cup needle roller bearing |
| CN201651066U (en) * | 2010-04-23 | 2010-11-24 | 江苏南方轴承股份有限公司 | Needle roller bearing for throttle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103443422A (en) * | 2011-03-10 | 2013-12-11 | 谢夫勒科技股份两合公司 | Needle sleeve, in particular for pivotably mounting the throttle valve shaft of a control device for recirculating exhaust gas in internal combustion engines |
| CN103443422B (en) * | 2011-03-10 | 2016-03-16 | 舍弗勒技术股份两合公司 | Open type drawn cup needle roller bearing |
| CN102909531A (en) * | 2012-11-07 | 2013-02-06 | 苏州新豪轴承有限公司 | Workpiece processing method |
| CN104061327A (en) * | 2014-05-28 | 2014-09-24 | 史建伟 | Oil seal and bearing comprising same |
| CN105782248A (en) * | 2015-12-23 | 2016-07-20 | 江苏南方轴承股份有限公司 | Oil seal and bearing including oil seal |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100901 |