CN101852250B - Device and method for regulating pair of back to back inner and outer spacers of angular contact bearing - Google Patents
Device and method for regulating pair of back to back inner and outer spacers of angular contact bearing Download PDFInfo
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- CN101852250B CN101852250B CN2010101652165A CN201010165216A CN101852250B CN 101852250 B CN101852250 B CN 101852250B CN 2010101652165 A CN2010101652165 A CN 2010101652165A CN 201010165216 A CN201010165216 A CN 201010165216A CN 101852250 B CN101852250 B CN 101852250B
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- bearing
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- balancing weight
- frictional force
- outer ring
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Abstract
The invention discloses a device and a method for regulating a pair of back to back inner and outer spacers of an angular contact bearing. The relationship between axial pretightening force and friction of the spacers is firstly calibrated; the bearing and the outer spacer are arranged on a bearing seat in the calibration process; a balancing weight of the pretightening force presses on the bearing; a digital display type pull and push dynamometer is used for measuring the friction of the outer spacer which corresponds to the pretightening force; then, the inner spacer is added; the balancing weight of the pretightening force with twice of the weight presses on the bearing; the digital display type pull and push dynamometer is used for measuring the friction of the outer spacer; and whether the thicknesses of the inner and the outer spacers are correct is judged by comparing the friction with the calibrated friction. For simulating the temperature of working conditions, the device is provided with a heating device for heating the bearing. The device has the advantages of simple structure, light weight, small volume and high reliability.
Description
Technical field
The present invention relates to mechanical component assembling process technique, specifically be meant a kind of device and method of adjusting the angular contact bearing internal space ring and external space ring of a pair of back-to-back installation.
Background technique
Cone spacer and outer ring spacer thickness difference directly influence the pretightening force size of angular contact bearing.At present, the method of check angular contact bearing cone spacer and outer ring spacer thickness difference is, earlier with pouring weight or directly compress the outer ring or the inner ring (pressure is equivalent to pretightening force) of bearing with hand, push away outer ring spacer or cone spacer with finger then, when the sensation tightness was the same, then the internal space ring and external space ring thickness difference promptly met the pretension requirement.
Summary of the invention
The invention provides the installation pretightening force problem that a kind of device and method of adjusting the angular contact bearing internal space ring and external space ring of a pair of back-to-back installation solves accurate controlled angle contact bearing.
The regulating device of internal space ring and external space ring as shown in Figure 1 when angular contact bearing of the present invention " back-to-back " was installed: device comprises thermometric platinum resistor 1, heater band 2, pretightening force balancing weight 3, bearing support 8, warm-air drier 9, warm-keeping ring 12, base 13, slide plate 14, eccentric wheel handle 15 and digital display type pull and push dynamometer 17.Bearing support 8 is connected with base 13 by mat insulation 11 usefulness screws 10, digital display type pull and push dynamometer 17 is contained on the slide plate 14,13 guide rail is connected on slide plate 14 and the base, eccentric wheel handle 15 is connected on the base 13 by bearing pin 16, the breach that warm-air drier 9 is aimed on the warm- keeping ring 12,2 thermometric platinum resistors 1 and 2 heater bands 2 are attached to respectively on bearing support 8 and the pretightening force balancing weight 3.Upper bearing (metal) 4 and lower bearing 7 are sleeved on the bearing support 8 top cylinders, lay cone spacer 6 and outer ring spacer 5 between upper bearing (metal) 4 and the lower bearing 7, are pressed with pretightening force balancing weight 3 on bearing is right.Described pretightening force balancing weight 3 comprises calibration balancing weight 3-1 and adjusts balancing weight 3-2 that the weight of wherein adjusting balancing weight 3-2 is 2 times of calibration balancing weight 3-1.Warm-keeping ring 12 is incubated bearing support, bearing to getting up to seal with pretightening force balancing weight cover.
The adjusting method of angular contact bearing internal space ring and external space ring comprises that step is as follows:
1) opens warm-air drier 9 and heater band 2, bearing to being heated to predetermined temperature, and was stablized 20 minutes;
2) relation of axial pre tightening force and spacer ring frictional force is demarcated by elder generation, timing signal, pair of bearings and outer ring spacer 5 are contained on the bearing support, calibration balancing weight 3-1 is pressed in bearing to last, the digital display type pull and push dynamometer promotes the outer ring spacer slippage, thereby records the demarcation frictional force of pairing outer ring spacer under one times of pretightening force;
3) add dress cone spacer 6, and be pressed in bearing to last with the adjustment balancing weight 3-2 of two times of weights, the power of two times of recanalization balancing weights divides two the tunnel to transmit: the one tunnel gives cone spacer 6, outer ring spacer 5 is given on another road, repeating step 1, behind the temperature stabilization, the digital display type pull and push dynamometer is measured the frictional force of outer ring spacer once more;
4) littler if measure the frictional force of outer ring spacer once more than demarcating frictional force, repair thin cone spacer 6, otherwise, repair thin outer ring spacer 5;
5) remeasure the frictional force of outer ring spacer, if frictional force with to demarcate frictional force inconsistent, repeating step 4 is if the frictional force of being surveyed is adjusted end with to demarcate frictional force identical.
The invention has the advantages that:
Because the frictional force of spacer ring is very responsive for pretightening force (positive pressure), so more accurate with the method check cone spacer and outer ring spacer thickness difference.This verifying attachment is simple in structure, in light weight, volume is little, reliability is high.
Description of drawings
Fig. 1 is an installation drawing, among the figure, and 1---the thermometric platinum resistor, 2---heater band; 3---the pretightening force balancing weight; 4---upper bearing (metal); 5---outer ring spacer; 6---cone spacer; 7---lower bearing; 8---bearing support; 9---warm-air drier; 10---screw; 11---mat insulation; 12---warm-keeping ring; 13---base; 14---slide plate; 15---eccentric wheel handle; 16---bearing pin; 17---the digital display type pull and push dynamometer.
Fig. 2 demarcates friction measurement figure for bearing, and wherein pretightening force balancing weight 3 adopts the calibration balancing weight 3-1 of 1 times of weight, and outer ring spacer is not adorned.
Fig. 3 is the graphics of pretightening force balancing weight part, 3-1 among the figure---the calibration balancing weight; 3-2---adjust balancing weight.
Embodiment
Below the specific embodiment of the present invention is described in further detail:
See Fig. 2, upper bearing (metal) 4, outer ring spacer 5, lower bearing 7, be contained on the bearing support 8 of thermometric platinum resistor 1 and heater band 2, and be connected with base 13 by mat insulation 11 usefulness screws 10, the demarcation that thermometric platinum resistor 1 and heater band 2 are housed is pushed down upper bearing (metal) with calibration balancing weight 3-1, the breach that warm-air drier 9 is aimed on the warm-keeping ring 12, digital display type pull and push dynamometer 17 is contained on the slide plate 14, is connected with 13 guide rail on the base.Eccentric wheel handle 15 is connected on the base 13 by bearing pin 16.When heater band calibration balancing weight 3-1, bearing support and bearing inner race temperature control to 75 ℃ ± 4 ℃, warm-air drier is bearing outer ring temperature control to 55 ℃ ± 4 ℃, stablized 20 minutes, after making the typing of bearing heat expansion, rotate eccentric wheel handle, the digital display type pull and push dynamometer is along guide rail movement and promote spacer ring, obtain pretightening force the calibration value of corresponding outer ring spacer frictional force.
Increase cone spacer 6, after heater band and warm-air drier are heated to predetermined temperature to bearing, make the typing of bearing heat expansion, rotate eccentric wheel handle, the digital display type pull and push dynamometer is along guide rail movement and promote outer ring spacer, obtains the test value of outer ring spacer frictional force.
The test value of outer ring spacer frictional force and calibration value are contrasted, and test value is too thinner than the bright outer ring spacer of calibration value novel, otherwise too thick.
The demarcation balancing weight 3-1 diameter 47mm that adopts among the embodiment, long 50mm; Adjust balancing weight 3-2 diameter 47mm, long 90mm; Upper bearing (metal) 4 external diameter 47mm, internal diameter 25mm, thick 12mm, model 7005C; Outer ring spacer 5 external diameter 47mm, internal diameter 40mm, thick 4mm; Cone spacer 6 external diameter 32mm, internal diameter 25mm, thick 4mm; Lower bearing 7 external diameter 47mm, internal diameter 25mm, thick 12mm, model 7005C; Bearing support 8 diameter 63mm, long 88mm; Mat insulation 11 diameter 63mm, thick 2mm; Warm-keeping ring 12 diameter 72mm, long 140mm; Base 13 long 170mm, wide 100mm, high 80mm; Slide plate 14 long 100mm, wide 76mm, thick 6mm; Eccentric wheel handle 15 diameter 30mm, thick 6mm, long 40mm; Bearing pin 16 diameter 4mm, long 12mm; Digital display type pull and push dynamometer 17 long 100mm, wide 75mm, thick 35mm, model HF-50, the permanent space in Suzhou Instr Ltd. produces.
Claims (3)
1. device of adjusting the angular contact bearing internal space ring and external space ring of a pair of back-to-back installation, comprise base (13), digital display type pull and push dynamometer (17), bearing support (8), warm-air drier (9), 2 thermometric platinum resistors (1), 2 heater bands (2), pretightening force balancing weight (3) and warm-keeping ring (12), it is characterized in that: described bearing support (8) is connected with base (13) with screw (10) by mat insulation (11); Described digital display type pull and push dynamometer (17) is contained on the slide plate (14), and the guide rail of (13) is connected on slide plate (14) and the base; Eccentric wheel handle (15) is connected on the base (13) by bearing pin (16); Described warm-air drier (9) is aimed at the breach on the warm-keeping ring (12); Described 2 thermometric platinum resistors (1) and 2 heater bands (2) are attached to respectively on bearing support (8) and the pretightening force balancing weight (3); Warm-keeping ring (12) is incubated bearing support, bearing to getting up to seal with pretightening force balancing weight cover.
2. a kind of device of adjusting the angular contact bearing internal space ring and external space ring of a pair of back-to-back installation according to claim 1, it is characterized in that: described pretightening force balancing weight (3) is by calibration balancing weight (3-1) and adjust balancing weight (3-2) formation, and the weight of wherein adjusting balancing weight (3-2) is 2 times of calibration balancing weight (3-1).
3. adjusting method based on the angular contact bearing internal space ring and external space ring of the back-to-back installation of the described device of claim 1 is characterized in that may further comprise the steps:
1) opens warm-air drier (9) and heater band (2), bearing to being heated to predetermined temperature, and was stablized 20 minutes;
2) relation of axial pre tightening force and spacer ring frictional force is demarcated by elder generation, timing signal, pair of bearings and outer ring spacer (5) are contained on the bearing support, calibration balancing weight (3-1) is pressed in bearing to last, the digital display type pull and push dynamometer promotes the outer ring spacer slippage, thereby records the demarcation frictional force of pairing outer ring spacer under one times of pretightening force;
3) add dress cone spacer (6), and be pressed in bearing to last with the adjustment balancing weight (3-2) of two times of weights, the power of two times of recanalization balancing weights divides two the tunnel to transmit: the one tunnel gives cone spacer (6), outer ring spacer (5) is given on another road, repeating step 1, behind the temperature stabilization, the digital display type pull and push dynamometer is measured the frictional force of outer ring spacer once more;
4) littler if measure the frictional force of outer ring spacer once more than demarcating frictional force, repair thin cone spacer (6), otherwise, repair thin outer ring spacer (5);
5) remeasure the frictional force of outer ring spacer, if frictional force with to demarcate frictional force inconsistent, repeating step 4 is if the frictional force of being surveyed is adjusted end with to demarcate frictional force identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101652165A CN101852250B (en) | 2010-04-29 | 2010-04-29 | Device and method for regulating pair of back to back inner and outer spacers of angular contact bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101652165A CN101852250B (en) | 2010-04-29 | 2010-04-29 | Device and method for regulating pair of back to back inner and outer spacers of angular contact bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101852250A CN101852250A (en) | 2010-10-06 |
| CN101852250B true CN101852250B (en) | 2011-11-30 |
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| CN2010101652165A Expired - Fee Related CN101852250B (en) | 2010-04-29 | 2010-04-29 | Device and method for regulating pair of back to back inner and outer spacers of angular contact bearing |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954118B (en) * | 2012-11-19 | 2016-01-06 | 杭州一佳精密轴承有限公司 | A kind of assembly method of bidirectional angular contact thrust ball bearing |
| CN104615166B (en) * | 2013-11-01 | 2017-05-03 | 中国科学院西安光学精密机械研究所 | Thermal micro-adjusting system and method for pre-tightening force of space rotary table shafting |
| CN106624776A (en) * | 2016-12-06 | 2017-05-10 | 中国航空工业集团公司洛阳电光设备研究所 | Bi-directional single bearing precise shaft system assembling method |
| CN108918146A (en) * | 2018-09-21 | 2018-11-30 | 瓦房店宝山轴承制造有限公司 | A kind of angular contact ball bearing preload force simulating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6394657B1 (en) * | 1993-02-22 | 2002-05-28 | Nsk Ltd. | Preloading method for preload-adjustable rolling bearing and manufacture of the same |
| JP2003148499A (en) * | 2000-12-05 | 2003-05-21 | Koyo Seiko Co Ltd | Bearing device for vehicle |
| CN2849305Y (en) * | 2005-11-10 | 2006-12-20 | 北汽福田汽车股份有限公司 | Location device for steering pipe column bearing installation |
| CN201013768Y (en) * | 2007-03-14 | 2008-01-30 | 洛阳轴研科技股份有限公司 | Device used for high speed electric main-shaft bearing assembling |
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- 2010-04-29 CN CN2010101652165A patent/CN101852250B/en not_active Expired - Fee Related
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Granted publication date: 20111130 Termination date: 20160429 |