CN102454684A - Needle bearing of piston connecting rod mechanism - Google Patents
Needle bearing of piston connecting rod mechanism Download PDFInfo
- Publication number
- CN102454684A CN102454684A CN2010105291306A CN201010529130A CN102454684A CN 102454684 A CN102454684 A CN 102454684A CN 2010105291306 A CN2010105291306 A CN 2010105291306A CN 201010529130 A CN201010529130 A CN 201010529130A CN 102454684 A CN102454684 A CN 102454684A
- Authority
- CN
- China
- Prior art keywords
- needle
- needle roller
- needle bearing
- bearing
- retainer
- 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
Images
Abstract
The invention relates to a needle bearing, in particular to a needle bearing of a piston connecting rod mechanism in cylinder equipment. At present, the needle bearing with low noise and low vibration value does not exist in the country; and national or industrial related standards also do not exist in the country. The invention mainly aims to provide the needle bearing with low noise and low vibration aiming at the problem in the current needle bearing manufacture industry. The needle bearing of the piston connecting rod mechanism is provided with a retaining frame and a needle. Grooves are arranged on the inside surface and the outside surface of the retaining frame. The section of the needle bearing is M-shaped. The needle is cylindrical. The two ends of the needle cylindrical surface are provided with a correction curved surface.
Description
Technical field
The present invention relates to needle bearing, especially the needle bearing of piston crank mechanism in the cylinder equipment.
Background technique
Needle bearing is widely used in the mechanical transmission mechanisms such as washing machine, electric motor car, automobile, motorcycle.Needle bearing has bigger load strength owing to adopt a plurality of cylindrical body needle rollers, simultaneously because high speed rotating 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 are through up to ten thousand rotations of per minute, with sending very big noise.Isolate retainer even adopt, but because needle roller is linear contact (this " ball " types of bearings is a contact mutually) 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 (trace) error unavoidably in the diameter at cylindrical needle roller two ends in course of working; 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 area of contact excessive, causes that noise increases; 4, bearing surface metal working process precision is not enough, mutually big noise of friction-produced.
Summary of the invention
The object of the invention mainly is to the problems referred to above in the present needle bearing manufacturing industry, proposes the low vibration of a kind of low noise needle bearing.
Realize that technological scheme of the present invention is following:
The needle bearing of piston crank mechanism has retainer and needle roller, and above-mentioned retainer inner and outer surface is provided with groove, and the cross section is " M " type, and above-mentioned needle roller is cylindrical, and two ends, needle roller cylndrical surface have the correction curved surface.
Above-mentioned retainer circumference evenly distribute needle roller groove and needle roller groove and bearing centre parallel axes.
The present invention has made important improvement through the enforcement of such scheme to needle bearing, has effectively controlled the noise of present needle bearing, the deficiency of vibration aspect.Concrete good effect is following: at first the needle roller two ends are provided with the correction curved surface, and needle roller groove and bearing centre parallel axes, have prevented needle roller axial float when stressed rotation, have reduced the noise generation; Secondly needle roller groove Position Optimization is selected, and guarantees that needle roller and retainer have less area of contact, and the corresponding frictional force between the two that reduced adds the needle roller cooperation of extra fine grade group, favourable reduction the vibration in the bearing operation, level of noise.
Description of drawings
Fig. 1 perspective view of the present invention.
Fig. 2 retainer partial cutaway schematic.
Embodiment
Fig. 1 and Fig. 2 are the retainer 1 and needle roller 2 of needle bearing of the present invention, and wherein the retainer the selection of material is the 20CrMo alloyed steel, and needle roller is selected the GCr15 alloyed steel for use.
The manufacture process of retainer is roughly divided following steps:
1, goes out the ring 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 the needle roller groove guaranteeing to process and the central axis keeping parallelism of bearing in the above-mentioned steps 3 especially, need control the counterdie that is used for fixing the retainer blank and the parallelism of patrix cutter for this reason.The counterdie two ends of fixed retainer blank are provided with center hole in the present embodiment; Through this center hole 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 parallelism of patrix cutter and counterdie retainer central axis, can guarantee higher precision, thereby makes 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 silicon carbide polishing paste, appropriateness increases abrasive material, and this is heavy, increases frictional force, effectively improves needle roller rooved face roughness.Adopt needle roller correct grinding lapping technique simultaneously, improve the needle roller roughness, guarantee Ra0.4, make every effort to reach Ra0.2, can effectively reduce the friction factor 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 metallic 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 accomplish 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, accomplishes 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 metallic material.
Wherein in the step 1; After the cylindrical processing of preliminary completion, the correction curved surface of need on the cylndrical surface at needle roller two ends, dishing out is because the existence of the truing 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; When this needle roller groove is in retainer cross section neutral position; The area of contact of needle roller and needle roller groove is less, and fore shaft still can guarantee the effective locking to needle roller about the needle roller groove.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 with internationally renowned brand to this situation:
Can find out from above table, under filling lubricant oil or rust preventive oil situation, product needle roller axle of the present invention
Hold with two international best brand very nearly the samely, wherein the data under lubricant oil situation performances is outstanding, and lubricant oil is the work normality of needle bearing, and visible the present invention is better effects if in actual use.
Claims (2)
1. the needle bearing of piston crank mechanism has retainer and needle roller, it is characterized in that: above-mentioned retainer inner and outer surface is provided with groove, and the cross section is " M " type, and above-mentioned needle roller is cylindrical, and two ends, needle roller cylndrical surface have the correction curved surface.
2. the needle bearing of piston crank mechanism according to claim 1 is characterized in that: above-mentioned retainer circumference evenly distribute needle roller groove and needle roller groove and bearing centre parallel axes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105291306A CN102454684A (en) | 2010-10-30 | 2010-10-30 | Needle bearing of piston connecting rod mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105291306A CN102454684A (en) | 2010-10-30 | 2010-10-30 | Needle bearing of piston connecting rod mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102454684A true CN102454684A (en) | 2012-05-16 |
Family
ID=46038211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105291306A Pending CN102454684A (en) | 2010-10-30 | 2010-10-30 | Needle bearing of piston connecting rod mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102454684A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105593547A (en) * | 2013-10-02 | 2016-05-18 | 舍弗勒技术股份两合公司 | Needle bearing arrangement |
-
2010
- 2010-10-30 CN CN2010105291306A patent/CN102454684A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105593547A (en) * | 2013-10-02 | 2016-05-18 | 舍弗勒技术股份两合公司 | Needle bearing arrangement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101642866B (en) | Method for manufacturing needle bearing | |
| KR101551316B1 (en) | Bearing roller, bearing, and bearing roller processing method | |
| CN105921950A (en) | Production technology for rolling bearing | |
| CN103470637A (en) | Method of manufacturing bearing ring of rolling bearing | |
| US8615885B2 (en) | Method for producing the rolling elements of a ball roller bearing | |
| US7862240B2 (en) | Bearing device | |
| CN108368869A (en) | Bearing axis and bearing | |
| CN102454684A (en) | Needle bearing of piston connecting rod mechanism | |
| JP2005106234A (en) | Conical roller bearing and method for working conical roller bearing | |
| CN104302447A (en) | Method and tool for increasing the strength of shafts, in particular of crankshafts | |
| CN201255182Y (en) | Needle roller bearing | |
| CN113027935A (en) | High-bearing universal joint of wing-shaped cold extrusion self-lubricating bearing and processing method thereof | |
| CN108067836A (en) | A kind of processing technology of bearing | |
| CN106402147B (en) | The production technology of TC bearer ring of the helicoid hydraulic motor in the combination of TC bearings | |
| US11739788B2 (en) | Crankshaft and method of manufacturing the same | |
| CN107859688A (en) | A kind of screw rod drilling tool journal bearing and its production technology | |
| CN112824692A (en) | Thrust roller bearing | |
| JP7176646B2 (en) | Rolling bearing and its manufacturing method | |
| JPH11257357A (en) | Race for rolling bearing | |
| KR20130137932A (en) | Wheel bearing, steel ball therein and manufacturing method of the steel ball | |
| CN106903491A (en) | The processing method of spherulitic iron crankshaft thrust surface | |
| US20050229372A1 (en) | Method of finishing a metal preform | |
| JP2008308706A (en) | Conical roller bearing | |
| JP7240815B2 (en) | Rolling component manufacturing method and bearing manufacturing method | |
| CN106661481A (en) | Lubricant for roller bearings, roller bearing and method for production and repair of roller bearings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120516 |