CN101642866B - Method for manufacturing needle bearing - Google Patents
Method for manufacturing needle bearing Download PDFInfo
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- CN101642866B CN101642866B CN2008100213892A CN200810021389A CN101642866B CN 101642866 B CN101642866 B CN 101642866B CN 2008100213892 A CN2008100213892 A CN 2008100213892A CN 200810021389 A CN200810021389 A CN 200810021389A CN 101642866 B CN101642866 B CN 101642866B
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- retainer
- needle roller
- needle
- bearing
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Abstract
The invention relates to a method for manufacturing a needle bearing, in particular to a method for manufacturing a bearing of a piston link mechanism in cylinder equipment. The invention mainly aims to provide the method for manufacturing the low-noise and low-vibration needle bearing in order to solve the problems in the needle bearing manufacturing industry at present. At present, a low-noise and low-vibration needle bearing product does not exist at home and a standard of low noise of the needle bearing also does not exist in the nation and in the industry. The method for manufacturing the product comprises the following steps of: a) processing a ringed retainer blank; b) fixing the ringed retainer blank on a lathe and cutting grooves on inner and outer sides of the retainer to form M-shaped sections; c) on a punch press, processing a needle groove parallel with the central axis of the bearing along the circumferential direction of the retainer; d), processing a cylindrical rolling needle and processing symmetrical correcting curved surfaces at two ends of the cylindrical rolling needle; and e) assembling the rolling needle and the retainer into the bearing product.
Description
Technical field
The present invention relates to the needle bearing manufacturing, especially the bearing manufacture method of piston crank mechanism in the cylinder equipment.
Background technology
Needle bearing is widely used in the mechanical transmission mechanisms such as washing machine, electric motor car, automobile, motorcycle.Needle bearing has bigger load holding capacity owing to adopt a plurality of cylinder needle rollers, simultaneously because rotation at a high speed usually becomes the root that noise produces.In cylinder equipment, the bearing of piston crank mechanism, raceway is wide 15 or 13 millimeters, and circumference uniform distribution 17 needle rollers through up to ten thousand rotations of per minute, will send very big noise.Isolate retainer even adopt, but because needle roller is linear contact (compare " ball " types of bearings and be a contact) in raceway, add high-speed rotation, noise still can't suppress.
Nowadays why this field needle bearing of domestic production produces higher noise, main cause has: 1, there is size error in a small amount unavoidably in the diameter at cylindrical needle roller two ends in process, the linear differential that through up to ten thousand rotations of per minute the time, produces, the axial float that causes the needle roller of product knocks the retainer end face and produces noise; 2, needle roller groove on the retainer and bearing centre axis parallel degree are not enough, cause needle roller axial play under the rotation stressing conditions to produce noise; 3, the design of needle roller groove is unreasonable on the retainer, causes needle roller groove and needle roller contact area excessive, causes that noise increases; 4, bearing surface metal working process precision is not enough, and friction produces big noise mutually.
Summary of the invention
Purpose of the present invention mainly is at the problems referred to above in the present needle bearing manufacturing industry, proposes the manufacture method of the low vibration of a kind of low noise needle bearing.
Realize that technical scheme of the present invention is as follows:
A kind of manufacture method of needle bearing has following steps:
A) at first process the retainer blank of endless belt shape;
B) above-mentioned retainer blank is fixed on lathe, the groove of the inside and outside both sides of cutting retainer forms " M " tee section;
C) process the needle roller groove parallel at the retainer circumferencial direction with the bearing centre axis, the needle roller groove processing of above-mentioned retainer is further comprising the steps of: 1) the retainer blank is fixed on the lathe by counterdie, guarantees that retainer blank central axis is parallel with the counterdie central axis; 2) open centre bore at the counterdie two ends; Before processing needle roller groove, adjust frock and testing rod is installed, to extend retainer blank central axis length; 3) be benchmark with the retainer central axis that prolongs, adjust the counterdie position, make the retainer central axis parallel with the patrix cutter;
The needle roller groove inner surface of above-mentioned retainer adopts centrifugal smart the throwing, and adds chlorine carborundum antiscuffing paste, strengthens abrasive material proportion, increases friction efficiency, improves surface roughness;
D) needle roller of processing column shape, and process the correction curved surface of symmetry at the two ends on the needle roller face of cylinder, above-mentioned needle roller processing is further comprising the steps of: 1) finish the needle roller sharp processing at grinding machine; 2) quench, temper; 3) carry out preliminary grinding, half correct grinding; 4) carry out Ageing Treatment, to discharge the internal stress of metal material; 5) last correct grinding together;
E) needle roller and retainer are assembled into bearing products.
Above-mentioned retainer in the end will pass through vibration, Ageing Treatment before the correct grinding together, to discharge the internal stress of metal material.
Above-mentioned needle roller adopts the needle roller group of extra fine grade.
On determining retainer, during the position of needle roller groove, adopt Computer Analogy Design, reduce the contact area of needle roller and needle roller groove.
The present invention has made improvement in all directions by the enforcement of such scheme to the manufacture method of needle bearing, has effectively controlled the noise of present needle bearing, the deficiency of vibration aspect.Concrete good effect is as follows: 1, two ends, the needle roller face of cylinder are processed with the tru(e)ing face, can be effectively when the stressed rotation of needle roller axially off-load, prevent axial float; 2, on the processing retainer during needle roller groove, use testing rod to prolong the datum line of counterdie, improved the counterdie and the patrix depth of parallelism, also promptly improved the depth of parallelism of needle roller groove and bearing centre axis; 3, adopt the computer simulation design, can realize on the retainer needle roller groove Working position preferably intuitively, make that needle roller and needle roller groove contact area are less; 4, retainer and needle roller surface metal PROCESS FOR TREATMENT are meticulous, and vibrate, Ageing Treatment, eliminate metal inside stress, improved bearing working stable performance degree.
Description of drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a retainer partial cutaway schematic of the present invention.
The specific embodiment
Fig. 1 and Fig. 2 are the retainer 1 and the needle roller 2 of needle bearing among the present invention, and wherein the retainer the selection of material is the 20CrMo steel alloy, and needle roller is selected the GCr15 steel alloy for use.
The manufacture process of retainer is roughly divided following steps:
1, goes out the annular blank in machine tooling;
2, cut out groove in the inside and outside both sides of retainer blank respectively, make its cross section be " M " shape (see figure 2);
3, on retainer blank circumference, process equally distributed needle roller groove;
4, carry out Treatment of Metal Surface, guarantee roughness.
It should be noted that especially in the above-mentioned steps 3 and guarantee the needle roller groove that processes and the central axis keeping parallelism of bearing, need to control the counterdie that is used for fixing the retainer blank and the depth of parallelism of patrix cutter for this reason.The counterdie two ends of fixed retainer blank are provided with centre bore in the present embodiment, by this centre bore testing rod can be installed, because the installation of testing rod, it also is the length of retainer central axis that reality has been extended counterdie, when the operator proofreaies and correct the depth of parallelism of patrix cutter and counterdie retainer central axis, can guarantee higher precision, thereby make the needle roller groove that processes parallel with the retainer central axis.
In the step 4, the essence of retainer is thrown and is generally adopted the 2*2 abrasive particle, but because of abrasive particle quality is too light, can not effectively remove the crude part of material.Therefore adopt centrifugal smart the throwing, add chlorine carborundum antiscuffing paste, strengthen abrasive material proportion, increase friction efficiency, effectively improve needle roller rooved face roughness.Adopt needle roller correct grinding lapping technique simultaneously, improve the needle roller surface roughness, guarantee Ra0.4, make every effort to reach Ra0.2, can effectively reduce the coefficient of friction of retainer and needle roller.
The Vehicle Processing of external diameter, inside groove water jacket, end face and mill processing in the processing of above-mentioned retainer comprises for several times, there is bigger internal stress in metal material inside, will influence the stability in use of material.Although retainer requires case-carbonizing 0.08-0.15, Vickers hardness (HV) reaches 450-600, and core hardness reaches 280-400, but the internal stress of metal inside still can thoroughly not eliminated, so must in the end finish vibration, Ageing Treatment before the correct grinding together, guarantee internal stress is eliminated.
The manufacture process of above-mentioned needle roller is roughly divided following steps:
1, finishes the needle roller sharp processing at grinding machine;
2, quench, temper;
3, carry out preliminary grinding, half correct grinding;
4, carry out Ageing Treatment,, finish grind again at last to discharge the internal stress of metal material.
Wherein in the step 1, after tentatively finishing cylindrical processing, the correction curved surface of need dishing out on the face of cylinder at needle roller two ends is because the existence of the tru(e)ing face has prevented the axial float of the inconsistent generation of cylindrical needle roller two ends diameter, and in bearing, during stressed rotation, form the axially effect of unloading at needle roller.
In order to guarantee that the needle roller groove on needle roller and the retainer reasonably cooperates, the position of adopting computer simulation method to calculate needle roller groove on the retainer, make that the contact area of this position needle roller and needle roller groove is less, and the needle roller groove up and down fore shaft still can guarantee effective locking to needle roller.In order further to guarantee the precision of needle bearing of the present invention, to carry out the strictness screening for the needle roller on the same set of bearing, guarantee the extra fine grade group.
Needle bearing of the present invention has outstanding running accuracy, vibration values and level of noise, below is laboratory actual measurement noise data, and contrasts situation with internationally renowned brand:
From above table as can be seen, under filling lubricating oil or antirust oil situation, needle bearing and two brands that the inventive method is produced are very nearly the same, wherein the performance of the data under the lubricating oil situation is outstanding, and lubricating oil is the work normality of needle bearing, visible the present invention better effects if in practical bearing is produced.
Claims (4)
1. the manufacture method of a needle bearing has following steps:
A) at first process the retainer blank of endless belt shape;
B) above-mentioned retainer blank is fixed on lathe, the groove of the inside and outside both sides of cutting retainer forms " M " tee section;
C) process the needle roller groove parallel at the retainer circumferencial direction with the bearing centre axis, the needle roller groove processing of above-mentioned retainer is further comprising the steps of: 1) the retainer blank is fixed on the lathe by counterdie, guarantees that retainer blank central axis is parallel with the counterdie central axis; 2) open centre bore at the counterdie two ends; Before processing needle roller groove, adjust frock and testing rod is installed, to extend retainer blank central axis length; 3) be benchmark with the retainer central axis that prolongs, adjust the counterdie position, make the retainer central axis parallel with the patrix cutter;
The needle roller groove inner surface of above-mentioned retainer adopts centrifugal smart the throwing, and adds chlorine carborundum antiscuffing paste, strengthens abrasive material proportion, increases friction efficiency, improves surface roughness;
D) needle roller of processing column shape, and process the correction curved surface of symmetry at the two ends on the needle roller face of cylinder, above-mentioned needle roller processing is further comprising the steps of: 1) finish the needle roller sharp processing at grinding machine; 2) quench, temper; 3) carry out preliminary grinding, half correct grinding; 4) carry out Ageing Treatment, to discharge the internal stress of metal material; 5) last correct grinding together;
E) needle roller and retainer are assembled into bearing products.
2. the manufacture method of needle bearing according to claim 1 is characterized in that: will be through vibration, Ageing Treatment, to discharge the internal stress of metal material before above-mentioned retainer in the end finish grindes together.
3. the manufacture method of needle bearing according to claim 1 is characterized in that: the needle roller group of above-mentioned needle roller employing extra fine grade.
4. the manufacture method of needle bearing according to claim 1 is characterized in that: during the position of needle roller groove, adopt Computer Analogy Design on determining retainer, reduce the contact area of needle roller and needle roller groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100213892A CN101642866B (en) | 2008-08-05 | 2008-08-05 | Method for manufacturing needle bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100213892A CN101642866B (en) | 2008-08-05 | 2008-08-05 | Method for manufacturing needle bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101642866A CN101642866A (en) | 2010-02-10 |
| CN101642866B true CN101642866B (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100213892A Expired - Fee Related CN101642866B (en) | 2008-08-05 | 2008-08-05 | Method for manufacturing needle bearing |
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| CN (1) | CN101642866B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152081B (en) * | 2011-04-27 | 2013-03-06 | 常州市武进长江滚针轴承有限公司 | Manufacture method of vehicle rocker arm bearing |
| CN102423869B (en) * | 2011-11-08 | 2014-08-20 | 宁波中和汽配有限公司 | Manufacturing method of stainless steel roller needles for bearing |
| CN102501161B (en) * | 2011-11-08 | 2013-11-27 | 宁波中和汽配有限公司 | Method for manufacturing needle roller with unloading function for bearing |
| CN102494042B (en) * | 2011-12-07 | 2014-10-29 | 浙江欧迪恩传动科技股份有限公司 | Method for manufacturing constant velocity universal joint maintaining rack |
| DE102013225447B4 (en) * | 2013-10-02 | 2020-02-13 | Schaeffler Technologies AG & Co. KG | Needle bearing assembly |
| CN103659562B (en) * | 2013-12-10 | 2016-01-06 | 宁波中和汽配有限公司 | Without corner angle sphere needle roller processing method |
| CN104385125B (en) * | 2014-10-27 | 2017-03-29 | 无锡五洋赛德压缩机有限公司 | It is applied to the deburring rotation platform of Compressor Rotor |
| CN107470870A (en) * | 2017-09-30 | 2017-12-15 | 徐州天太机械制造有限公司 | A kind of Production of bearing technique |
| CN112963451B (en) * | 2021-02-07 | 2022-09-16 | 中浙高铁轴承有限公司 | Machining process for bolt type roller needle roller bearing made of special material |
| CN114800158B (en) * | 2022-06-30 | 2022-09-20 | 江苏万达特种轴承股份有限公司 | Automatic processing device for bearing inner grooves |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1664391A (en) * | 2005-03-18 | 2005-09-07 | 高黎明 | Method for forming needle roller bearing cage |
| JP2006133162A (en) * | 2004-11-09 | 2006-05-25 | Tokuyama Corp | Maintenance planning method for bearing |
| CN101137854A (en) * | 2005-03-14 | 2008-03-05 | Ntn株式会社 | Needle roller bearing and method of producing the same |
-
2008
- 2008-08-05 CN CN2008100213892A patent/CN101642866B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006133162A (en) * | 2004-11-09 | 2006-05-25 | Tokuyama Corp | Maintenance planning method for bearing |
| CN101137854A (en) * | 2005-03-14 | 2008-03-05 | Ntn株式会社 | Needle roller bearing and method of producing the same |
| CN1664391A (en) * | 2005-03-18 | 2005-09-07 | 高黎明 | Method for forming needle roller bearing cage |
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| CN101642866A (en) | 2010-02-10 |
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Granted publication date: 20110216 Termination date: 20160805 |