CN103954398B - The dynamic balance method of a kind of retainer and the fixture that is installed - Google Patents
The dynamic balance method of a kind of retainer and the fixture that is installed Download PDFInfo
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- CN103954398B CN103954398B CN201410170256.7A CN201410170256A CN103954398B CN 103954398 B CN103954398 B CN 103954398B CN 201410170256 A CN201410170256 A CN 201410170256A CN 103954398 B CN103954398 B CN 103954398B
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Abstract
The invention discloses the dynamic balance method of a kind of retainer and the fixture that is installed, this fixture that is installed includes connecting plate and elastic adapter ring, the center of connecting plate is provided with through hole, through hole on connecting plate lower surface is provided with a cylindrical end tangs, the central axis of boss coincides with the central axis of through hole, is along the circumferential direction evenly equipped with some lightening holes on the upper surface of connecting plate；Described elastic adapter ring is stepped cylinder, it includes the first cylinder and the second cylinder that diameter is sequentially reduced from top to bottom, the external diameter of the second cylinder is identical with the external diameter of connecting plate, second cylinder is fixedly connected on the upper surface of connecting plate by screw, and second the upper surface of lower surface and connecting plate of cylinder fit and align, the internal diameter of described elastic adapter ring deducts 3～4mm equal to the external diameter of the first cylinder.By this fixture that is installed, by means of vertical dynamic balancing machine, it is possible to rapidly and accurately retainer is carried out dynamic balancing, and then measures its amount of unbalance and be removed.
Description
Technical field
The invention belongs to technical field of bearing processing, be related specifically to the dynamic balance method of a kind of retainer and the fixture that is installed.
Background technology
Aeroplane engine mainshaft bearing is one of critical component of aero-engine, and its applying working condition is complex, generally operates under conditions of high temperature, high speed and heavy load, and technology requires extremely harsh.The precision of main shaft bearing and reliability directly affect the performance of electromotor.The version that generally aeroplane engine mainshaft bearing uses has: double half inner ring angular contact ball bearings, cylinder roller bearing and paired duplex angular contact ball bearing.
Owing to rotating speed and the operating temperature of aeroplane engine mainshaft bearing are higher, its retainer material generally uses copper alloy.Along with to the limit speed of bearing and the raising of operating temperature requirements, the most more using 40CrNiMoA high-duty cast steel alloy as retainer material.The advantage of this material is that intensity is high, and wearability is good, uses the mode of Tempering and Quenching to improve its hardness material the most in advance when retainer.Owing to the hardness of retainer is high, when thus be accordingly used in retainer, its difficulty of processing is bigger.
When bearing uses metal material to make retainer, owing to the ratio of material is great, in addition the asymmetry of retainer structure and mismachining tolerance, when bearing runs up, centrifugal force produced by retainer is relatively big, and the amount of unbalance of retainer has large effect to serviceability and the life-span of bearing.If amount of unbalance is excessive, bearing may be caused to be arranged on cisco unity malfunction in main frame.Therefore, the retainer of aeroplane engine mainshaft bearing is typically necessary makees dynamic balancing, removes amount of unbalance, to meet the bearing serviceability when running up and life requirements.
For the dynamic balancing of steel retainer, generally use horizontal dynamic balancing machine that it is carried out dynamic balancing.Retainer belongs to disk-like accessory, horizontal dynamic balancing machine is primarily present its own shortcomings during balance: the dynamic balancing fixture that is installed makes complexity, machining accuracy is difficult to ensure, it is installed and operates complexity, and alignment and balance precision is low, when carrying out dynamic balancing, the method for needs interpolation plasticine is to determine the amount of unbalance of retainer simultaneously, and its precision is not accurate enough, and plasticine is easily dished out when high-speed rotation, all these shortcomings can not fully meet the dynamically balanced required precision of retainer.
Summary of the invention
In order to preferably meet requirement during retainer dynamic balancing, the purpose of the present invention is to propose to the dynamic balance method of a kind of retainer and the fixture that is installed, it is installed fixture by design one, by means of vertical dynamic balancing machine, use this dynamic balance method that retainer can rapidly and accurately carry out dynamic balancing, and then measure its amount of unbalance and be removed.
For achieving the above object, the present invention uses technical scheme as described below:
A kind of retainer dynamic balancing is installed fixture, it includes connecting plate and elastic adapter ring, the center of connecting plate is provided with through hole, through hole on connecting plate lower surface is provided with a cylindrical end tangs, the central axis of boss coincides with the central axis of through hole, is along the circumferential direction evenly equipped with some lightening holes on the upper surface of connecting plate；Described elastic adapter ring is stepped cylinder, it includes the first cylinder and the second cylinder that diameter is sequentially reduced from top to bottom, the external diameter of the second cylinder is identical with the external diameter of connecting plate, second cylinder is fixedly connected on the upper surface of connecting plate by screw, and second the upper surface of lower surface and connecting plate of cylinder fit and align, the internal diameter of described elastic adapter ring deducts 3～4mm equal to the external diameter of the first cylinder.
Further, the sidewall of the first cylinder offers along its axial direction some run through the open slot in outside in sidewall, and the most uniform setting of open slot.
Further, described groove is provided with three, and the width of groove is 1～1.5mm.
Further, the through hole lower port edge on connecting plate is downwardly extending a protuberance, the cylindrical end tangs described in protruding parts.
Further, the central axis of described connecting plate is located along the same line with the central axis of elastic adapter ring.
Further, the material of described connecting plate and elastic adapter ring is employing phenolic aldehyde fabroil.
One utilizes the above-mentioned fixture that is installed that retainer is carried out dynamic balance method, its concrete operation step is: 1) be fixed on the work top of vertical dynamic balancing machine by the fixture that is installed being made up of the fixing connecting plate connected and elastic adapter ring, and make the centre bore that the boss on connecting plate is positioned on vertical dynamic balancing machine work top, it is achieved feel relieved and position；Then start vertical dynamic balancing machine measurement to be installed the amount of unbalance of fixture, and be adjusted correspondingly, finally make this amount of unbalance meet the requirements；
2) being installed on the first cylinder of elastic adapter ring by balanced retainer, the external diameter of described first cylinder adds 0.10～0.12mm equal to the internal diameter of retainer, and the height of the first cylinder is less than or equal to the width of retainer；Then start vertical dynamic balancing machine, measure the dynamic balancing of retainer, and as requested on the azimuth be given, end face or outer radius at retainer remove amount of unbalance.
Owing to have employed techniques described above scheme, the present invention has a following superiority:
1, the present invention is installed fixture by design one so that balanced retainer, only with the location that is once installed, eliminates due to position error impact, substantially increases the precision of measurement；
2, the fixture that is installed of the present invention, has simple in construction, installs quick and easy to operate feature.
3, the dynamically balanced measuring method of the retainer of the present invention, being used not only for balancing inner ring is the retainer of smooth, cylindrical peripheral surface, and the retainer that external diameter is smooth, cylindrical peripheral surface is equally applicable, only the endoporus of elastic adapter ring need to be set to stepped hole, outer wall is set to the face of cylinder.
Accompanying drawing explanation
Fig. 1 is that the retainer dynamic balancing in the present invention is installed clamp structure schematic diagram；
In figure: 1-vertical dynamic balancing machine；2-connecting plate；3-retainer；4-elastic adapter ring；5-screw.
Detailed description of the invention
Below in conjunction with the accompanying drawings and invention is described in further detail by embodiment.
The fixture as it is shown in figure 1, a kind of retainer dynamic balancing is installed, it includes connecting plate and the elastic adapter ring being fixed together, and the central axis of connecting plate is located along the same line with the central axis of elastic adapter ring；The center of connecting plate is provided with through hole, through hole on connecting plate lower surface is provided with a cylindrical end tangs, the central axis of boss coincides with the central axis of through hole, the upper surface of connecting plate is along the circumferential direction evenly equipped with some lightening holes, its purpose is to alleviate the deadweight of fixture itself, improve the dynamic balance accuracy of retainer；Described elastic adapter ring is stepped cylinder, it includes the first cylinder and the second cylinder that diameter is sequentially reduced from top to bottom, the external diameter of the second cylinder is identical with the external diameter of connecting plate, second cylinder is fixedly connected on the upper surface of connecting plate by screw, and second the upper surface of lower surface and connecting plate of cylinder fit and align, the internal diameter of described elastic adapter ring deducts 3～4mm equal to the external diameter of the first cylinder.
Offering along its axial direction on the sidewall of the first cylinder and some run through the open slot in outside in sidewall, and the most uniform setting of open slot, open slot primarily serves elastic expansion location and certralizing ability；Preferably, described groove is set to three, and the width of groove is 1～1.5mm.
Through hole lower port edge on connecting plate is downwardly extending a protuberance, the cylindrical end tangs described in protruding parts, and this cylindrical end tangs is for being fitted in the centre bore on vertical dynamic balancing machine work top, it is achieved its centering and location.
The material of described connecting plate and elastic adapter ring is employing phenolic aldehyde fabroil；Make it addition, connecting plate and elastic adapter ring can also use phenolic aldehyde fabroil material to be integrally machined, connecting plate and elastic adapter ring are formed integrally structure, it is possible to be easily installed quick and easy to operate.
One utilizes the above-mentioned fixture that is installed that retainer is carried out dynamic balance method, and its concrete operation step is:
1) fixture that is installed being made up of the fixing connecting plate connected and elastic adapter ring is fixed on the work top of vertical dynamic balancing machine, by screw, connecting plate is fixed on the work top of vertical dynamic balancing machine, and make the cylindrical end tangs on connecting plate be fitted in the centre bore on vertical dynamic balancing machine work top, it is achieved feel relieved and position；Then start vertical dynamic balancing machine measurement to be installed the amount of unbalance of fixture, the size of its amount of unbalance and azimuth can be directly given by the calculating system of vertical dynamic balancing machine, then, this amount of unbalance is removed by suitable method in the azimuth be given, the most several times, till making this amount of unbalance be reduced to meet the requirements；
2) being installed on the first cylinder of elastic adapter ring by balanced retainer, the external diameter of described first cylinder adds 0.10～0.12mm equal to the internal diameter of retainer, and the height of the first cylinder is less than or equal to the width of retainer；Then start vertical dynamic balancing machine, measure the dynamic balancing of retainer, and as requested on the azimuth be given, end face or outer radius at retainer remove amount of unbalance, in order to improve the dynamic balance accuracy of retainer, it is necessary to be iteratively repeated measurement several times.
Additionally, owing to retainer is disk-like accessory, in order to ensure the final precision after retainer 3 dynamic balancing, when carrying out dynamic balancing, retainer 3 must be carried out two sides dynamic balancing, the most in aforementioned manners after an end face of balance retainer 3, then it is installed on again and is installed on fixture after balanced retainer 3 is taken off upset 180 °, repeat said process and i.e. can reach balance requirement.
After connecting plate 2 and elastic adapter ring 4 connect composition one with screw, need to carry out it again polish, to meet technological operation dimensional requirement, thus the fixture machining accuracy that ensures to be installed, improve the be installed centering of fixture and the reliability of location.
Additionally, the retainer dynamic balance method of the present invention, not only can be used in balancing inner ring is the retainer of smooth, cylindrical peripheral surface, and the retainer that outer ring is smooth, cylindrical peripheral surface is equally applicable, only the endoporus of elastic adapter ring need to be set to stepped hole by the described fixture that is installed, outer wall is set to the face of cylinder, and retainer is put into during measurement the hole of stepped hole upper end.
Claims (6)
1. a retainer dynamic balancing is installed fixture, including connecting plate and elastic adapter ring, the center of connecting plate is provided with through hole, through hole on connecting plate lower surface is provided with a cylindrical end tangs, the central axis of boss coincides with the central axis of through hole, is along the circumferential direction evenly equipped with some lightening holes on the upper surface of connecting plate；It is characterized in that: described elastic adapter ring is stepped cylinder, it includes the first cylinder and the second cylinder that diameter is sequentially reduced from top to bottom, the external diameter of the second cylinder is identical with the external diameter of connecting plate, second cylinder is fixedly connected on the upper surface of connecting plate by screw, and second the upper surface of lower surface and connecting plate of cylinder fit and align, the internal diameter of described elastic adapter ring deducts 3～4mm equal to the external diameter of the first cylinder；Offer along its axial direction on the sidewall of the first cylinder and some run through the open slot in outside in sidewall, and the most uniform setting of open slot.
Retainer dynamic balancing the most according to claim 1 is installed fixture, it is characterized in that: described open slot is provided with three, and the width of groove is 1～1.5mm.
Retainer dynamic balancing the most according to claim 1 is installed fixture, it is characterized in that: the through hole lower port edge on connecting plate is downwardly extending a protuberance, and protuberance is described cylindrical end tangs.
Retainer dynamic balancing the most according to claim 1 is installed fixture, it is characterized in that: the central axis of described connecting plate is located along the same line with the central axis of elastic adapter ring.
Retainer dynamic balancing the most according to claim 1 is installed fixture, it is characterized in that: the material of described connecting plate and elastic adapter ring is employing phenolic aldehyde fabroil.
6. the fixture that is installed utilized described in claim 1 carries out dynamic balance method to retainer, it is characterized in that: concrete operation step is: 1) fixture that is installed being made up of the fixing connecting plate connected and elastic adapter ring is fixed on the work top of vertical dynamic balancing machine, and make the centre bore that the boss on connecting plate is positioned on vertical dynamic balancing machine work top, it is achieved feel relieved and position；Then start vertical dynamic balancing machine measurement to be installed the amount of unbalance of fixture, and be adjusted correspondingly, finally make this amount of unbalance meet the requirements；
2) being installed on the first cylinder of elastic adapter ring by balanced retainer, the external diameter of described first cylinder adds 0.10～0.12mm equal to the internal diameter of retainer, and the height of the first cylinder is less than or equal to the width of retainer；Then start vertical dynamic balancing machine, measure the dynamic balancing of retainer, and as requested on the azimuth be given, end face or outer radius at retainer remove amount of unbalance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410170256.7A CN103954398B (en) | 2014-04-25 | 2014-04-25 | The dynamic balance method of a kind of retainer and the fixture that is installed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410170256.7A CN103954398B (en) | 2014-04-25 | 2014-04-25 | The dynamic balance method of a kind of retainer and the fixture that is installed |
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| Publication Number | Publication Date |
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| CN103954398A CN103954398A (en) | 2014-07-30 |
| CN103954398B true CN103954398B (en) | 2017-01-04 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424279B (en) * | 2015-11-19 | 2018-06-29 | 中航工业哈尔滨轴承有限公司 | The method for detecting bearing retainer unbalancing value |
| CN106442102A (en) * | 2016-12-07 | 2017-02-22 | 中航工业哈尔滨轴承有限公司 | Strength test device for bearing square hole metal retaining frame |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3951900B2 (en) * | 2002-11-15 | 2007-08-01 | 株式会社デンソー | Rotor holder for unbalance measurement |
| CN201583382U (en) * | 2009-12-31 | 2010-09-15 | 沈阳锦德机械有限公司 | Clamping tool of dynamic balancing machine |
| CN202974567U (en) * | 2012-12-03 | 2013-06-05 | 南阳防爆集团股份有限公司 | Vertical dynamic balancing device for external fan of explosion-proof electric machine |
| DE102012109633A1 (en) * | 2012-10-10 | 2014-04-10 | Franz Haimer Maschinenbau Kg | Balancing or measuring adapter |
-
2014
- 2014-04-25 CN CN201410170256.7A patent/CN103954398B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3951900B2 (en) * | 2002-11-15 | 2007-08-01 | 株式会社デンソー | Rotor holder for unbalance measurement |
| CN201583382U (en) * | 2009-12-31 | 2010-09-15 | 沈阳锦德机械有限公司 | Clamping tool of dynamic balancing machine |
| DE102012109633A1 (en) * | 2012-10-10 | 2014-04-10 | Franz Haimer Maschinenbau Kg | Balancing or measuring adapter |
| CN202974567U (en) * | 2012-12-03 | 2013-06-05 | 南阳防爆集团股份有限公司 | Vertical dynamic balancing device for external fan of explosion-proof electric machine |
Non-Patent Citations (2)
| Title |
|---|
| 轴承保持架动平衡夹紧模的改进;刘海波 等;《哈尔滨轴承》;20100331;第31卷(第1期);第34-35、40页 * |
| 轴承保持架动平衡方法研究;苏健 等;《轴承》;20091231(第9期);第37、38页 * |
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| CN103954398A (en) | 2014-07-30 |
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Effective date of registration: 20180511 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Patentee after: Luoyang Bearing Research Institute Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Patentee before: Zhouyan Science and Technology Co., Ltd., Luoyang |