CN103481728B - The hub-bearing unit of Novel intelligent - Google Patents
The hub-bearing unit of Novel intelligent Download PDFInfo
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- CN103481728B CN103481728B CN201310421914.0A CN201310421914A CN103481728B CN 103481728 B CN103481728 B CN 103481728B CN 201310421914 A CN201310421914 A CN 201310421914A CN 103481728 B CN103481728 B CN 103481728B
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- 238000013461 design Methods 0.000 claims description 8
- 239000000523 sample Substances 0.000 claims description 8
- 238000002788 crimping Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 238000003745 diagnosis Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 5
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- 230000002159 abnormal effect Effects 0.000 description 3
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- 230000001133 acceleration Effects 0.000 description 1
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- 238000000280 densification Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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- 230000002452 interceptive effect Effects 0.000 description 1
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- 238000007789 sealing Methods 0.000 description 1
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Abstract
The present invention relates to a kind of hub-bearing unit of Novel intelligent.It comprises brake disc, steering swivel, ball, Integral retainer, constant-velocity universal joint, inner seal ring, exterior seal ring and noise transducer with multipole magnetic coil.Brake disc and constant-velocity universal joint outer end clutch can axle journal root are equipped with raceway, jointly as the inner ring raceway of hub-bearing unit, steering swivel axle journal is provided with two row raceways, as the cup raceway of hub bearing, ball, Integral retainer, seal ring are all installed between steering swivel axle journal and clutch can axle journal, brake disc axle journal.Described structural elements integrated level is high, and accessory is few, reduces turn radius and is easy to processing and installs.Described steering swivel axle journal is provided with through hole, and noise transducer is installed in steering swivel axle journal through hole, for Real-Time Monitoring hub bearing operational situation, achieves hub bearing automatic trouble diagnosis, improves the safety performance of hub bearing.
Description
Technical field
The present invention relates to technical field of automobile, particularly a kind of hub-bearing unit of Novel intelligent.
Background technology
Hub-bearing unit, as the important parts of automobile, is mainly used to load-bearing and provides accurate guide for the rotation of hub bearing.Current car generally adopts constant-velocity universal joint coordinate with third generation hub-bearing unit, hub-bearing unit is connected with wheel, and constant-velocity universal joint adopts spline to coordinate with inside flange, and this structural elements is many, and assembling is complicated, and car turn radius is little.Along with further developing of science and technology, people require to improve further to the integrated level of car parts, compactedness.Hub bearing is as vehicle key parts, and safety performance is most important.Install the sensor being used for detecting hub bearing fault in real time, improving the safety performance of hub bearing, is the inexorable trend of future development.
Chinese patent literature (patent No.: CN201195476Y), be fixed on by clutch can on the end step of inner flange long end axle journal, and withstand inner ring simultaneously, the axle journal end face of long end axle journal is set as crimping, encase clutch can, clutch can inside is provided with constant velocity driveshaft ball cage formula universal-joint.Inner ring and clutch can are provided separately by this kind of structure, and parts are more, complex structure, and are difficult to processing installation.Chinese patent literature (patent No.: CN202764599U) relate to a kind of intelligent hub-bearing unit, constant-velocity universal joint is installed additional in inside flange endoporus, installed temperature sensor and vibration acceleration sensor additional in outer ring, interior row ball is all set to identical specification with outer row ball number and size.But when motor turning travels, actual load near the outer row bearing of wheel side obviously can be greater than the interior row bearing near steering swivel side, its life-span is also shorter than interior row bearing usually, therefore determines that the principal element in hub bearing life-span is the load-carrying capacity of outer row bearing.Meanwhile, hub bearing flange endoporus is less, and being difficult to has enough spaces to be used for installing constant-velocity universal joint.This kind of structural elements integrated level is lower, is difficult to install.
Summary of the invention
The object of the invention is the hub-bearing unit designing a kind of Novel intelligent in order to solve the problems such as hub bearing complex structure in prior art, parts integrated level is low, operational situation cannot be monitored.
The technical solution adopted in the present invention is:
The hub-bearing unit of Novel intelligent, comprises inner seal ring, the noise transducer of brake disc, steering swivel, interior row ball, outer row ball, Integral retainer, constant-velocity universal joint, exterior seal ring, band multipole magnetic coil; Wherein, described brake disc coordinates with constant-velocity universal joint to be installed, the double inner ring making hub bearing, steering swivel is double does hub bearing outer ring, installs described Integral retainer, inner seal ring, exterior seal ring, outer row ball and interior row ball between the axle journal of steering swivel, clutch can and brake disc three; Described brake disc and inside flange integrated design, the card of brake disc is provided with mounting hole, is connected with wheel by bolt, makes brake disc have inside flange effect concurrently; Steering swivel and outward flange integrated design, make steering swivel have the effect of outward flange concurrently; Brake disc axle journal root and clutch can axle journal root are respectively equipped with the first raceway and the second raceway, above-mentioned two raceways are jointly as the inner ring raceway of hub-bearing unit, corresponding described two raceways in steering swivel axle journal place be provided with two row raceways, as the cup raceway of hub bearing.
Further, described steering swivel axle journal place is provided with through hole, in described through hole, noise transducer is installed, described noise transducer comprises metal case and probe, described metal case is installed in through hole, described probe stretches in the arc groove at described Integral retainer middle transition position, between two row balls; Electric signal is transported to ECU by wire by sensor interface.
Further, described noise transducer coordinates with steering swivel axle journal through hole to be installed, and through-bore axis is positioned at two row ball vertical centerline position; On through hole, half-turn inside face and noise transducer outside face are equipped with screw thread, noise transducer metal case outside face is provided with rubber seal, rubber seal and noise transducer metal case outside face fit together, and rubber seal is installed in through-hole wall groove; Noise transducer, slightly larger than inboard wall groove diameter, is pressed in through hole by described rubber seal loop diameter, and adopts and be threaded and be fixed, rubber seal and steering swivel through-hole wall groove interference fit.
Further, Integral retainer both sides are provided with staggered outer row pocket hole and Nei Lie pocket hole, described interior row pocket hole is for placing interior row ball, described outer row pocket hole is for placing outer row ball, outer row pocket hole number is more than interior row pocket hole number, outer row pocket bore dia is less than interior row pocket bore dia, and the two pitch circle diameter is equal;
Further, Integral retainer middle transition region is provided with downward arc groove, and arc groove is for holding noise transducer probe.
Further, clutch can axle journal end is processed with a step, and brake disc endoporus is nested in axle journal step, and the two interference fit is connected in one, and clutch can axle journal end face is provided with crimping, compresses the interior hole end surface of brake disc.
Further, described constant-velocity universal joint comprises clutch can, retainer, inner support, inner spline groove, axial raceway and steel ball, wherein, described clutch can is as the outer support of constant-velocity universal joint, and inside is provided with axial raceway, and steel ball (56) is installed between clutch can and inner support, adopt retainer constraint steel ball can only move at axial raceway, inside face is provided with inner spline groove, coordinates with transmission shaft, transferring power.
The present invention has following advantage:
1, compared with existing hub bearing, noise transducer has been installed in the present invention additional, in order to the operation conditions of Real-Time Monitoring hub-bearing unit, occurs abnormal failure, and running noise strengthens, and at once reports to the police, significant for the safety performance improving hub bearing;
2, existing three generations's hub-bearing unit comprises inside flange, outward flange, retainer, ball, seal ring, and wherein inside flange is connected with brake disc by bolt, and outward flange is connected with steering swivel by bolt.Inside flange and brake disc, outward flange and steering swivel are carried out integrated arrangement by the present invention, brake disc and inside flange, steering swivel and outward flange are all combined into a whole parts, eliminate tie bolt, brake disc and steering swivel have the effect of inside and outside flange concurrently, this project organization is compacter, alleviates overall weight, the vibration produced when effectively reducing braking, the chatter noise of having decayed when braking, adds wheel stiffnesses;
3, compared with existing three generations's hub-bearing unit, present invention eliminates wheel hub castellated shaft, by the structure of constant-velocity universal joint and being made of one of hub bearing, compact conformation, easy for installation, for designer arranges that steering structure provides more clearance envelope, reduce turn radius; By changing outer row ball ball number, diameter, improve the load-carrying capacity of outer row ball, leaving the Intensity Design of more design space for brake disc, steering swivel simultaneously, improve load-carrying capacity and the fatigue life of hub bearing; By original two independent row retainers are set to Integral retainer, retainer both sides are respectively equipped with the pocket hole of different number and size, place ball, simplify the structure, achieve the Highgrade integration of hub bearing parts;
4, the present invention using the clutch can axle journal root of constant-velocity universal joint and brake disc axle journal root as inner ring, coordinate with ball, clutch can axle journal step place and brake disc endoporus adopt interference fit, and clutch can axle journal end face adopts crimping form, rides on the end face of brake disc endoporus.This kind of constructional delails integrated level is high, without the need to adopting extra inner ring structure, processes easy for installation.
Accompanying drawing explanation
Fig. 1 is general assembly structural representation of the present invention;
Fig. 2 is noise transducer connection structure schematic diagram of the present invention;
Fig. 3 is the front view of Integral retainer of the present invention;
Fig. 4 is the block diagram of Integral retainer of the present invention;
Fig. 5 is noise transducer working process schematic diagram of the present invention;
Fig. 6 is the equivalent stress cloud atlas of hub bearing double row ball under limit turning operating mode;
In figure, 1-outer row ball, 2-noise transducer, 3-interior row ball, 4-Integral retainer, 5-constant-velocity universal joint, the inner seal ring of 6-band multipole magnetic coil, 7-steering swivel, 8-brake disc, 9-exterior seal ring, 10-bolt, 11-wire, 12-ECU, 13-facia board indicator lamp, 14-rubber seal, 21-noise transducer interface, 22-noise transducer is popped one's head in, 23-noise transducer outside face, 24-noise transducer metal case, 41-Integral retainer arc groove, the outer row pocket hole of 42-Integral retainer, row pocket hole in 43-Integral retainer, 51-clutch can, 52-retainer, 53-inner support, 54-inner spline groove, 55-axial raceway, 56-steel ball, 71-steering swivel axle journal through hole, 72-steering swivel through-hole wall groove, 81-brake disc axle journal raceway, 82-brake disc inner bore chamfering, 511-clutch can axle journal raceway, 512-clutch can axle journal, 513-clutch can axle journal step, 514-crimping, D
1-outer row pocket bore dia, D
2-interior row pocket bore dia, D-pitch circle diameter.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is described further:
As shown in Figure 1,2,3, 4, brake disc 8 is connected with wheel by bolt 10, the axle journal root of brake disc 8 is provided with brake disc axle journal raceway 81, and outer row ball 1, Integral retainer 4 and exterior seal ring 9, above-mentioned parts are all installed between brake disc 8 and steering swivel 7.The endoporus of brake disc 8 is nested in step 513 place of constant-velocity universal joint clutch can axle journal 512, and the two adopts interference fit, connects as a whole, and the crimping 514 of clutch can axle journal end face is close to the interior hole end surface of brake disc 8.Endoporus and step 513 all adopt rounding form, and brake disc inner bore chamfering 82 cooperatively interacts with the transition arc of step 513 root.Clutch can axle journal root is provided with raceway 511, interior row ball 3 is housed between steering swivel 7 and clutch can axle journal 512, is with the inner seal ring 6 of multipole magnetic coil.
The diameter of outer row ball 1 is less than the diameter of interior row ball 3, and the number of outer row ball 1 is more than the number of interior row ball 3, and D is equal for the two pitch circle diameter; Known by finite element analysis, as shown in Figure 6, the equivalent stress cloud atlas of hub bearing double row ball under limit turning operating mode; When motor turning travels, actual load near the outer row bearing of brake disc 8 side obviously can be greater than the interior row bearing near steering swivel 7 side, its life-span is also shorter than interior row bearing usually, therefore determines that the principal element in hub bearing life-span is the load-carrying capacity of outer row bearing.Outer row ball 1 diameter reduces, and number increases, and is conducive to the load-carrying capacity strengthening outer row ball 1.Integral retainer 4 both sides are provided with quantity and the different outer row pocket hole 42 of size and Nei Lie pocket hole 43, and outer row pocket hole 42 is for placing outer row ball 1, and interior row pocket hole 43 is for placing interior row ball 3.Corresponding with ball number and size, outer row pocket hole 42 diameter D
1be slightly less than interior row pocket hole 43 diameter D
2, outer row pocket hole 42 quantity is greater than the quantity in interior row pocket hole 43, and this structure instead of originally separate inside and outside retainer, and form is more compact, and integrated level is higher, meets that car parts is integrated, the development tendency of densification.
Steering swivel axle journal is provided with through hole 71, and the upper half-turn inside face of through hole 71 is provided with screw thread; Described noise transducer 2 coordinates with steering swivel through hole 71 to be installed, and through hole 71 axis is positioned at two row ball vertical centerline position.Sensor outside face 23 is provided with screw thread, sensor metal case 24 outside face is provided with elastic seal ring 14, seal ring 14 tightly fits together with the outside face of sensor metal case 24, and through-hole wall is provided with groove 72, and seal ring 14 diameter is greater than through hole groove 72 diameter.Be pressed in through hole 71 by noise transducer 2, and adopt and be threaded and be fixed, the vibration that effectively prevent owing to producing when hub bearing operate causes sensor 2 loosening and causes survey precision to decline; Elastic seal ring 14 and through-hole wall groove 72 interference fit, play the effect of sealing and isolated external noise, improves survey precision.Noise transducer probe 22 stretches in the arc groove 41 of Integral retainer 4, between two row balls, for measuring the noise that wheel hub bearing operation sends in real time, and noise signal is converted into electric signal, electric signal is transported to ECU12 by wire 11 by sensor interface 21, according to the electric signal of input, ECU12 differentiates whether hub bearing is in faulty condition, if measured noise signal sharply becomes large and fluctuation is violent, and maintain the long period, show that hub bearing is in faulty condition, ECU12 then can send warning signal, light facia board indicator lamp 13, chaufeur hub bearing is reminded to occur abnormal failure, need to carry out maintenance and inspection, the specific works flow process of noise transducer 2 as shown in Figure 5.
Constant speed drives Rzeppa joint 5 to be made up of clutch can 51, retainer 52, inner support 53, inner spline groove 54, axial raceway 55, steel ball 56.Clutch can 51 is as the outer support of constant-velocity universal joint 5, and inside is provided with axial raceway 55, and steel ball 56 is installed between clutch can 51 and inner support 53, adopt retainer 52 to retrain steel ball 56 to move at axial raceway 55, inside face is provided with inner spline groove 54, coordinates with transmission shaft, transferring power.
The hub-bearing unit of the Novel intelligent that the present invention introduces, brake disc and inside flange are carried out integrated design, steering swivel and outward flange carry out integrated design, raceway is provided with respectively at brake disc, steering swivel and constant-velocity universal joint clutch can axle journal root, the double inside and outside flange making hub bearing, compact conformation, part integrated level is high, reduces system weight.Brake disc endoporus is nested in clutch can axle journal step place, and uses flange crimping operation, simple, process easy for installation.By reducing outer row ball diameter, increasing the method for outer row ball number, improve the load-carrying capacity of the outer row ball of hub bearing, improve the fatigue life of hub bearing.Originally separate inside and outside row retainer is set to Integral retainer, and inside and outside row ball is placed in the pocket hole that retainer both sides are provided with different size, improves the integrated level of parts, easy for installation.Steering swivel axle journal is provided with through hole, for installing noise transducer, occur interfering for preventing Integral retainer and noise transducer from popping one's head in, Integral retainer middle transition region adopts downward arc groove, for placing sensor probe, effectively prevent the generation of interference, the operational situation of noise transducer Real-Time Monitoring hub bearing, run into abnormal failure can report to the police, achieve the intellectuality of hub bearing, improve the safety performance of hub bearing.
Claims (7)
1. the hub-bearing unit of Novel intelligent, comprises inner seal ring (6), the noise transducer (2) of brake disc (8), steering swivel (7), interior row ball (3), outer row ball (1), Integral retainer (4), constant-velocity universal joint (5), exterior seal ring (9), band multipole magnetic coil; Wherein, described brake disc (8) coordinates with constant-velocity universal joint (5) to be installed, the double inner ring making hub bearing, steering swivel (7) is double does hub bearing outer ring, installs described Integral retainer (4), inner seal ring (6), exterior seal ring (9), outer row ball (1) and interior row ball (3) between the axle journal of steering swivel (7), clutch can (51) and brake disc (8) three; It is characterized in that: described brake disc (8) and inside flange integrated design, the card of brake disc (8) is provided with mounting hole, is connected with wheel by bolt (10), makes brake disc (8) have inside flange effect concurrently; Steering swivel (7) and outward flange integrated design, make steering swivel (7) have the effect of outward flange concurrently; Brake disc (8) axle journal root and clutch can (51) axle journal root are respectively equipped with the first raceway (81) and the second raceway (511), above-mentioned two raceways are jointly as the inner ring raceway of hub-bearing unit, corresponding described two raceways in steering swivel (7) axle journal place be provided with two row raceways, as the cup raceway of hub bearing.
2. the hub-bearing unit of Novel intelligent according to claim 1, it is characterized in that, described steering swivel (7) axle journal place is provided with through hole (71), in described through hole (71), noise transducer (2) is installed, described noise transducer (2) comprises metal case (24) and probe (22), described metal case (24) is installed in through hole (71), described probe (22) stretches in the arc groove (41) at described Integral retainer (4) middle transition position, between two row balls; Electric signal is transported to ECU(12 by wire (11) by sensor interface (21)).
3. the hub-bearing unit of Novel intelligent according to claim 2, is characterized in that: described noise transducer (2) coordinates with steering swivel axle journal through hole (71) to be installed, and through hole (71) axis is positioned at two row ball vertical centerline position; The upper half-turn inside face of through hole (71) and noise transducer outside face (23) are equipped with screw thread, noise transducer metal case (24) outside face is provided with rubber seal (14), rubber seal (14) and noise transducer metal case (24) outside face fit together, and rubber seal (14) is installed in through-hole wall groove (72); Described rubber seal (14) diameter, slightly larger than inboard wall groove (72) diameter, by noise transducer (2) press-in through hole (71), and adopts to be threaded and is fixed, rubber seal (14) and steering swivel through-hole wall groove (72) interference fit.
4. the hub-bearing unit of Novel intelligent according to claim 1, it is characterized in that: Integral retainer (4) both sides are provided with staggered outer row pocket hole (42) and interior row pocket hole (43), described interior row pocket hole (43) is for placing interior row ball (3), described outer row pocket hole (42) is for placing outer row ball (1), outer row pocket hole (42) quantity more than interior row pocket hole (43) quantity, outer row pocket bore dia (D
1) be less than interior row pocket bore dia (D
2), the two pitch circle diameter (D) is equal.
5. the hub-bearing unit of Novel intelligent according to claim 2, is characterized in that: Integral retainer (4) middle transition region is provided with downward arc groove (41), and arc groove (41) is for holding noise transducer probe (22).
6. the hub-bearing unit of Novel intelligent according to claim 1, it is characterized in that: clutch can axle journal (512) end is processed with a step (513), brake disc (8) endoporus is nested in axle journal step (513), the two interference fit is connected in one, clutch can (51) axle journal end face is provided with crimping (514), compresses the interior hole end surface of brake disc (8).
7. the hub-bearing unit of Novel intelligent according to claim 1, it is characterized in that, described constant-velocity universal joint (5) comprises clutch can (51), retainer (52), inner support (53), inner spline groove (54), axial raceway (55) and steel ball (56), wherein, described clutch can (51) is as the outer support of constant-velocity universal joint (5), inside is provided with axial raceway (55), steel ball (56) is installed between clutch can (51) and inner support (53), adopt retainer (52) constraint steel ball (56) can only move at axial raceway (55), inside face is provided with inner spline groove (54), coordinate with transmission shaft, transferring power.
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| CN201310421914.0A CN103481728B (en) | 2013-09-17 | 2013-09-17 | The hub-bearing unit of Novel intelligent |
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| CN201310421914.0A CN103481728B (en) | 2013-09-17 | 2013-09-17 | The hub-bearing unit of Novel intelligent |
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| CN103481728B true CN103481728B (en) | 2015-11-25 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUA20162312A1 (en) * | 2016-04-05 | 2017-10-05 | Skf Ab | Hub-bearing unit with hub-rotor. |
| CN108297846B (en) * | 2017-01-13 | 2024-01-12 | 株式会社岛野 | Adapter for a disc brake rotor, disc brake rotor comprising such an adapter and magnetic generator |
| CN106827952A (en) * | 2017-03-02 | 2017-06-13 | 奇瑞汽车股份有限公司 | A kind of hub bearing mechanism and vehicle |
| CN107131208B (en) * | 2017-03-24 | 2019-07-19 | 南京航空航天大学 | A kind of hub-bearing unit and its ball wear monitoring method |
| CN108869551A (en) * | 2018-07-13 | 2018-11-23 | 南京航空航天大学 | A kind of intelligence hub-bearing unit |
| CN108953367A (en) * | 2018-07-13 | 2018-12-07 | 南京航空航天大学 | A kind of lightweight hub bearing unit |
| CN110848263A (en) * | 2019-12-10 | 2020-02-28 | 南京冠盛汽配有限公司 | Fourth-generation hub bearing unit and assembling method thereof |
| CN111306188B (en) * | 2020-04-03 | 2021-12-17 | 大连交通大学 | Electric automobile supersound suspension wheel hub bearing |
| CN111609045B (en) * | 2020-05-22 | 2024-04-19 | 浙江万向精工有限公司 | Intelligent highly integrated driving hub unit assembly |
| CN117989231B (en) * | 2024-04-07 | 2024-06-11 | 苏州铁近机电科技股份有限公司 | Double-row ball bearing and radiator fan |
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| CN203528196U (en) * | 2013-09-17 | 2014-04-09 | 南京航空航天大学 | Novel intelligent wheel hub bearing unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007218342A (en) * | 2006-02-16 | 2007-08-30 | Ntn Corp | Bearing device for driving wheel |
| JP2009287595A (en) * | 2008-05-27 | 2009-12-10 | Jtekt Corp | Rolling bearing device |
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Patent Citations (3)
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|---|---|---|---|---|
| CN201195476Y (en) * | 2008-05-05 | 2009-02-18 | 万向集团公司 | Hub bearing unit IV |
| CN202012566U (en) * | 2011-03-25 | 2011-10-19 | 浙江兆丰机电股份有限公司 | Hub bearing unit of automobile |
| CN203528196U (en) * | 2013-09-17 | 2014-04-09 | 南京航空航天大学 | Novel intelligent wheel hub bearing unit |
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Inventor after: Lin Fen Inventor after: Wang Wei Inventor after: Zhu Weiwen Inventor after: Zhang Yaowen Inventor before: Wang Wei Inventor before: Lin Fen Inventor before: Zhu Weiwen Inventor before: Zhang Yaowen |
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Free format text: CORRECT: INVENTOR; FROM: WANG WEI LIN FEN ZHU WEIWEN ZHANG YAOWEN TO: LIN FEN WANG WEI ZHU WEIWEN ZHANG YAOWEN |
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Effective date of registration: 20231211 Address after: No. 1 Xingtai Road, Zhouzhuang Town, Xinghua City, Taizhou City, Jiangsu Province, 225711 Patentee after: JIANGSU HAOPENG MACHINERY Co.,Ltd. Address before: Yudaojie Baixia District of Nanjing City, Jiangsu Province, No. 29 210016 Patentee before: Nanjing University of Aeronautics and Astronautics |