CN203926389U - A kind of roller bearing assembly - Google Patents
A kind of roller bearing assembly Download PDFInfo
- Publication number
- CN203926389U CN203926389U CN201420319527.6U CN201420319527U CN203926389U CN 203926389 U CN203926389 U CN 203926389U CN 201420319527 U CN201420319527 U CN 201420319527U CN 203926389 U CN203926389 U CN 203926389U
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- tinsel
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- piezo
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- 230000005284 excitation Effects 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims description 4
- 238000010615 ring circuit Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 16
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model relates to a kind of roller bearing assembly, belongs to technical field of bearings.The two ends, left and right of outer ring and inner ring are respectively equipped with inner groove and outer groove, and described two inner groove places, outer ring are provided with ring skeleton and seal stopper ring by interference fit respectively; Each skeleton both sides are provided with respectively circuit board and tinsel and seal stopper ring and form seal chamber, on the tinsel of corresponding seal chamber, are bonded with piezo-electric sheet, and two place's excited magnets are connected with piezo-electric sheet, tinsel and tinsel respectively by screw; On skeleton, corresponding seal chamber place is provided with sensor; Piezo-electric sheet, tinsel and sensor are connected with circuit board by different wire groups; Two exciting magnets be embedded in respectively cylindrical roller both sides and with two excited magnets over against, opposite pole is near installing simultaneously; Two excitation magnet rings be embedded in seal stopper ring and with second group of excited magnet over against, like pole is near installing simultaneously.Features and advantages: have self energizing sensor monitoring function, as independently standarized component use, the structure without changing its erection unit, can realize real time on-line monitoring truly.
Description
Technical field
The utility model belongs to technical field of bearings, is specifically related to a kind of roller bearing assembly.
Background technique
Bearing is a kind of typical mechanical basic part, has application extremely widely in fields such as machinery, vehicle, Aero-Space, steamer and the energy; Yet bearing is also one of the most flimsy part in rotary machine, 30% of rotating machinery fault is to be caused by bearing failure.Therefore, the status monitoring of bearing and Incipient Fault Diagnosis have caused people's great attention.The on-line monitoring of bearing state has progressively become the indispensable technology in field such as large-scale wind driven generator, steamer, high ferro and aircraft, and the index of required monitoring comprises such as temperature, vibration, rotating speed and noise etc.Early stage bearing monitoring system is mainly external hanging type, and one of its drawback is distant between sensor and signal source, belongs to non-contacting indirect measurement, therefore error is larger.In recent years, people have proposed again multi-form Embedded Monitoring System in succession, this method can solve measuring accuracy and accuracy problem, but need to change structure or its integrity of relevant device, so that installation sensing and monitoring system, the problems such as this not only easily causes that the stress of equipment component is concentrated also cannot realize on the equipment of some complex structures or limited space; The most key, when monitoring system need to be rotated with bearing inner race or outer ring, inconvenience is by line powered, and employing powered battery is very short service time.Therefore, current bearing monitoring system is all also non real-time, non-contact measurement indirectly substantially, is difficult to obtain timely and accurately the running state of bearing.
Summary of the invention
For existing bearing monitoring system existing all kinds of problem in actual applications, the utility model provides a kind of roller bearing assembly.The embodiment that the utility model adopts is: a kind of roller bearing assembly, mainly by outer ring, cylindrical roller, seal stopper ring one and seal stopper ring two, ring skeleton one and skeleton two, exciting magnet one and exciting magnet two, annular circuit board one and circuit board two, inner ring, excitation magnet ring one and excitation magnet ring two, tinsel one and tinsel two, excited magnet one and excited magnet two, excited magnet three and excited magnet four, piezo-electric sheet one with piezo-electric sheet is second-class forms, it is characterized in that: two ends, described outer ring are provided with inner groove, inner ring two ends are provided with outer groove; Two outer ring inner grooves are provided with ring skeleton one and seal stopper ring one and ring skeleton two and seal stopper ring two, described two seal stopper rings and two inner ring outer groove Spielpassung by interference fit respectively; Described circuit board one and tinsel one and seal stopper ring one are fixed by screws in respectively left side and the right side of ring skeleton one, and with ring skeleton one airtight cavity one; Described piezo-electric sheet one is bonded on tinsel one and is placed in airtight cavity one; Excited magnet one is connected with piezo-electric sheet one and tinsel one by screw; Described excited magnet three links together by screw and tinsel, and with excitation magnet ring one over against; Described excitation magnet ring one is embedded in the interior described piezo-electric sheet one of seal stopper ring one and tinsel one is connected with circuit board one by wire group one; Sensor one is fixed on ring skeleton one and is placed in airtight cavity one; Described sensor one is connected with circuit board one by wire group two; Described seal stopper ring two and tinsel two and circuit board two with and be fixed by screws in respectively left side and the right side of ring skeleton two, and with ring skeleton two airtight cavities two; Described piezo-electric sheet two is bonded on tinsel two and is placed in airtight cavity two; Excited magnet two is connected with piezo-electric sheet two and tinsel two by screw; Described excited magnet four-way crosses screw and tinsel two links together; Described excitation magnet ring two is embedded in seal stopper ring two, and with excitation magnet ring two over against; Described piezo-electric sheet two and tinsel two are connected with circuit board two by wire group three; Sensor two is fixed on ring skeleton two and is placed in airtight cavity two; Described sensor two is connected with circuit board two by wire group four; Exciting magnet one and exciting magnet two are embedded in cylindrical roller both sides, and respectively with excited magnet one and excited magnet two over against; Between excited magnet one and exciting magnet one, between exciting magnet one and exciting magnet two and the opposite pole between exciting magnet two and excited magnet near installing; The close installation of like pole between excited magnet three and excitation magnet ring one, between excited magnet three and excited magnet four and between excited magnet four and excitation magnet ring two.
For improving generated energy, the radius of described each magnet equates and by formula
calculate, wherein: R is the radius of roller bearing inner ring raceway, r is cylindrical roller radius, n
0quantity for cylindrical roller;
be called and determine angle ratio, Q2=360/n
0be the angle between the line of two adjacent exciting magnet one or two adjacent exciting magnet Er centers and its gyration center O, Q1 for by gyration center O and and the tangent straight line of described exciting magnet one or two between angle; Preferably determine angle than being k=1.5～3.5.
In working procedure, cylindrical roller is along with outer ring or inner ring rotate and roll, also drive cylindrical roller simultaneously and rotate together with exciting magnet two with the exciting magnet one on being embedded in described cylindrical roller, thereby make to produce relative movement between exciting magnet one and excited magnet one and exciting magnet two and excited magnet two, and active force between active force between exciting magnet one and excited magnet one and exciting magnet two and excited magnet two is changed, the bending deflection that forces piezo-electric sheet one and piezo-electric sheet two to replace, converts mechanical energy to electric energy; The electric energy that piezo-electric sheet one generates is exported to the transformation of energy processing circuit on circuit board one through wire group one, then exports to sensor one through wire group two; The electric energy that piezo-electric sheet one generates is exported to the transformation of energy processing circuit on circuit board two through wire group three, then exports to sensor two through wire group four; Thereby realize the self-powered Real-Time Monitoring of bearing movable state.
For guaranteeing that the electric energy of piezo-electric sheet generation can meet the self-powered demand of sensor, should improve the electric energy that piezo-electric sheet produces as far as possible.When exciting magnet and excited magnet relatively rotate one week, the electric energy that single piezo-electric sheet produces is
wherein: C
ffor the free capacitance of piezo-electric sheet, V
g=η F is the off load voltage that piezo-electric sheet generates, and η is the coefficient relevant with piezo-electric sheet yardstick and material, and F is the suffered applied external force of piezo-electric sheet, h=nF
2be called energetic coefficient.Obviously, when other condition is constant, can improve voltage by improving the suffered applied external force F of piezo-electric sheet, by improving energetic coefficient h, improve electric energy.The actual conditions that are space distribution according to the working principle of the utility model roller bearing and magnetic field, arbitrary excited magnet one is all subject to a plurality of exciting magnets one effects, arbitrary excited magnet two to be all subject to a plurality of exciting magnet two effects simultaneously simultaneously.Therefore in the situation that other condition is definite, corresponding to determine angle more relevant than k with it respectively for described certain excited magnet one and the suffered active force of excited magnet two, and exist and preferably determine angle and make directed force F, voltage V than k
g, and electric energy E
glarger; When getting k=1.5～3.5, the voltage obtaining and electric energy are all larger, can guarantee flow coefficient be not less than its peaked 1/2.
Fig. 7 provided different determine angle than time excited magnet suffered directed force F with corner than the test curve of j=Q3/Q1, wherein Q3 is the angle between the line of excited magnet and exciting magnet center and its gyration center O, therefore corner characterizes than j, is the distance between excited magnet and exciting magnet.Fig. 7 explanation, determine angle when different, the suffered exciting magnet active force of excited magnet big or small and the number of times difference encouraging.Active force maximum value, excitation number of times and energetic coefficient and determine angle than the relation curve of k as shown in Figure 8.Obviously, when getting k=1.5～3.5, gained voltage and electric energy are all larger, energetic coefficient be greater than its peaked 1/2.
The voltage that piezo-electric sheet produces and electric energy except with directed force F, determine outside the Pass angle has than k, follow and also have action time of directed force F very large relation.Work as directed force F, determine angle while determining than k, according to I=Ft, if exciting magnet one or two action time t too small, piezo-electric sheet produces voltage and electric energy hardly, can improve the momentum to piezo-electric sheet by improving action time t.According to calculating, cylindrical roller (exciting magnet one or two) revolution week age is T=120 (R+r)/nR, and wherein R is inner ring raceway radius, and r is cylindrical roller radius, and n (r/min) is inner ring rotating speed (supposing that outer ring rotating speed is 0).T=240 action time (R+r) arctan (r
0/ (R+r))/n π R, wherein r
0for exciting magnet radius.Also the direct time that exciting magnet public affairs circle is in relative rotation T with the identical turning radius of the utility model exciting magnet one or two (cylindrical roller)
0=60/n, be t action time
0=120arctan (r
0/ (R+r))/π n, the time is than γ=t
0/ t=R/2 (R+r).So the utility model can extend exciting magnet one or two action time, can improve piezo-electric sheet and produce voltage and electric energy.
Advantage and characteristic: bearing self has self energizing sensor monitoring function, as independently standarized component use, the structure without changing its erection unit, can realize real time on-line monitoring truly.
Accompanying drawing explanation
Fig. 1 is the section of structure of roller bearing in preferred embodiment of the utility model;
Fig. 2 is the structural representation while ring skeleton not being installed on bearing inner race and outer ring;
Fig. 3 is the A-A view of Fig. 1;
Fig. 4 is the B-B view of Fig. 1;
Fig. 5 is exciting magnet and the excited magnet structural representation after relatively rotating in the utility model;
Fig. 6 is tinsel 29 ' structural representation
Fig. 7 be different determine angle than time excited magnet suffered active force and corner ratio relation curve;
Fig. 8 is energetic coefficient, maximum force and excitation number of times and the relation curve of determining angle ratio;
Embodiment
For existing bearing monitoring system existing all kinds of problem in actual applications, the utility model provides a kind of roller bearing assembly.The embodiment that the utility model adopts is: a kind of roller bearing assembly, mainly by outer ring 1, cylindrical roller 2, seal stopper ring 1 and seal stopper ring 23 ', ring skeleton 1 and skeleton 24 ', exciting magnet 1 and exciting magnet 25 ' annular circuit board 1 and circuit board 26 ', inner ring 7, excitation magnet ring 1 and excitation magnet ring 28 ', tinsel 1 and tinsel 29 ', excited magnet 3 10 and excited magnet 4 10 ', piezo-electric sheet 1 and piezo-electric sheet 2 12 ', excited magnet 1 and excited magnet 2 13 ' etc. formation.
In the utility model, 1 two ends, left and right, described outer ring are respectively equipped with inner groove 101 and 101 ', and described inner ring 4 two ends, left and right are respectively equipped with outer groove 701 and 701 '; The left inside annular groove 101 of described outer ring 1 is provided with ring skeleton 1 and seal stopper ring 1 by interference fit, and the outer hole of described ring skeleton 1 and seal stopper ring 1 and the left outside annular groove of inner ring 7 701 are Spielpassung; The outer hole that the right inside annular groove 101 ' of described outer ring 1 is provided with ring skeleton 1 by interference fit ' and seal stopper ring 1 ', described ring skeleton 1 ' and seal stopper ring 1 ' and the right outside annular groove 701 ' of inner ring 7 are Spielpassung; Described circuit board 1 and tinsel 1 and seal stopper ring 1 are fixed by screws in respectively left side and the right side of ring skeleton 1, and with ring skeleton one 4 airtight cavities 1; Described piezo-electric sheet 1 is bonded on tinsel 1 and is placed in airtight cavity 1; Excited magnet 1 is connected with piezo-electric sheet 1 and tinsel 1 by screw; Described excited magnet 3 10 links together by screw and tinsel 9, and with excitation magnet ring 1 over against; Described excitation magnet ring 1 is embedded in the interior described piezo-electric sheet 1 of seal stopper ring 1 and tinsel 1 is connected with circuit board 1 by wire group 1; Sensor 1 is fixed on ring skeleton 1 and is placed in airtight cavity 1; Described sensor 1 is connected with circuit board 1 by wire group 2 14; Described seal stopper ring 23 ' and tinsel 29 ' and circuit board 26 ' with and be fixed by screws in respectively ring skeleton 24 ' left side and right side, and with ring skeleton 24 ' airtight cavity 2 301 '; Described piezo-electric sheet 2 12 ' be bonded in tinsel 29 ' is upper and be placed in airtight cavity 2 301 ' in; Excited magnet 2 13 ' by screw and piezo-electric sheet 2 12 ' and tinsel 29 ' be connected; Described excited magnet 4 10 ' by screw and tinsel 29 ' link together; In described excitation magnet ring 28 ' be embedded in seal stopper ring 23 ', and with excitation magnet ring 28 ' over against; Described piezo-electric sheet 2 12 ' and tinsel 29 ' is by wire group 3 11 ' with circuit board 26 ' is connected; Sensor 2 15 ' be fixed on ring skeleton 24 ' is upper and be placed in airtight cavity 2 301 ' in; Described sensor 2 15 ' by wire group 4 14 ' and circuit board 26 ' be connected; Exciting magnet 1 and exciting magnet 25 ' be embedded in cylindrical roller 2 both sides, and respectively with excited magnet 1 and excited magnet 2 13 ' over against; Opposite pole between excited magnet 1 and exciting magnet 1, between exciting magnet 1 and exciting magnet 25 ' between and exciting magnet 25 ' and excited magnet 13 ' is near installing; Between excited magnet 3 10 and excitation magnet ring 1, excited magnet 3 10 and excited magnet 4 10 ' between and excited magnet 4 10 ' and excitation magnet ring 28 ' between the close installation of like pole.
For improving generated energy, the radius of described each magnet equates and by formula
calculate, wherein: R is the radius of roller bearing inner ring raceway, r is cylindrical roller 2 radiuses, n
0quantity for cylindrical roller 2;
be called and determine angle ratio, Q2=360/n
0be two adjacent exciting magnets 1 or two adjacent exciting magnets 28 ' center and the angle between the line of its gyration center O, Q1 is for by gyration center O and and described exciting magnet 1 or 28 ' angle between tangent straight line; Preferably determine angle than being k=1.5～3.5.
In working procedure, cylindrical roller 2 is along with outer ring 1 or inner ring 7 rotate and roll, also drive simultaneously cylindrical roller 2 and with exciting magnet 1 and exciting magnet 25 on being embedded in described cylindrical roller ' together with rotate, thereby make exciting magnet 1 and excited magnet 1 and exciting magnet 25 and produce relative movement between ' and excited magnet 2 13 ', and make the active force between exciting magnet 1 and excited magnet 1, between and exciting magnet 25 ' and excited magnet 2 13 ', active force changes, force piezo-electric sheet 1 and piezo-electric sheet 2 12 ' bending deflection that replaces, convert mechanical energy to electric energy, the electric energy that piezo-electric sheet 1 generates is exported to the transformation of energy processing circuit on circuit board 1 through wire group 1, then exports to sensor 1 through wire group 2 14, piezo-electric sheet 1 ' generate electric energy through wire group 3 11 ' is exported to circuit board 26 ' on transformation of energy processing circuit, then through wire group 4 14 ' export to sensor 2 15 ', thereby realize the self-powered Real-Time Monitoring of bearing movable state.
For guaranteeing that the electric energy of piezo-electric sheet generation can meet the self-powered demand of sensor, should improve the electric energy that piezo-electric sheet produces as far as possible.When exciting magnet and excited magnet relatively rotate one week, the electric energy that single piezo-electric sheet produces is
wherein: C
ffor the free capacitance of piezo-electric sheet, V
g=η F is the off load voltage that piezo-electric sheet generates, and η is the coefficient relevant with piezo-electric sheet yardstick and material, and F is the suffered applied external force of piezo-electric sheet, h=nF
2be called energetic coefficient.Obviously, when other condition is constant, can improve voltage by improving the suffered applied external force F of piezo-electric sheet, by improving energetic coefficient h, improve electric energy.Effect that the actual conditions that are space distribution according to the working principle of the utility model roller bearing and magnetic field, arbitrary excited magnet 1 is all subject to a plurality of exciting magnets one 5 effects, arbitrary excited magnet 2 13 simultaneously ' be all subject to a plurality of exciting magnets 25 ' simultaneously.Therefore in the situation that other condition is definite, described certain excited magnet 1 and excited magnet 2 13 ' corresponding to determine angle more relevant than k with it respectively for suffered active force, and exist and preferably determine angle and make directed force F, voltage V than k
g, and electric energy E
glarger.In the utility model, preferably determine angle than being k=1.5～3.5 o'clock, the voltage obtaining and electric energy are all larger.
Fig. 7 provided different determine angle than time excited magnet suffered directed force F with corner than the test curve of j=Q3/Q1, wherein Q3 is the angle between the line of excited magnet and exciting magnet center and its gyration center O, therefore corner characterizes than j, is the distance between excited magnet and exciting magnet.Fig. 7 explanation, determine angle when different, the suffered exciting magnet active force of excited magnet big or small and the number of times difference encouraging.Active force maximum value, excitation number of times and energetic coefficient and determine angle than the relation curve of k as shown in Figure 8.Obviously, when getting k=1.5～3.5, gained voltage and electric energy are all larger, energetic coefficient be greater than its peaked 1/2.
The voltage that piezo-electric sheet produces and electric energy except with directed force F, determine outside the Pass angle has than k, follow and also have action time of directed force F very large relation.Work as directed force F, determine angle while determining than k, according to I=Ft, if exciting magnet 1 or 25 ' action time t too small, piezo-electric sheet produces voltage and electric energy hardly, can improve the momentum to piezo-electric sheet by improving action time t.According to calculating, cylindrical roller 2 (exciting magnet 1 or 25 ') revolution week age is T=120 (R+r)/nR, wherein R is inner ring 7 raceway radiuses, and r is cylindrical roller 2 radiuses, and n (r/min) is inner ring 7 rotating speeds (supposing that outer ring 1 rotating speed is 0).T=240 action time (R+r) arctan (r
0/ (R+r))/n π R, wherein r
0for exciting magnet radius.With the utility model exciting magnet 1 or 25 ' also the direct time that exciting magnet public affairs circle is in relative rotation T to (cylindrical roller 2) identical turning radius
0=60/n, be t action time
0=120arctan (r
0/ (R+r))/π n, the time is than γ=t
0/ t=R/2 (R+r).So the utility model can extend exciting magnet 1 or 25 ' action time, can improve piezo-electric sheet and produce voltage and electric energy.
Claims (3)
1. a roller bearing assembly, mainly by outer ring, cylindrical roller, seal stopper ring one and seal stopper ring two, ring skeleton one and skeleton two, exciting magnet one and exciting magnet second ring circuit board one and circuit board two, inner ring, excitation magnet ring one and excitation magnet ring, tinsel one and tinsel two, excited magnet three and excited magnet four, piezo-electric sheet one and piezo-electric sheet two, excited magnet one with excited magnet is second-class forms, it is characterized in that: two ends, described outer ring are provided with inner groove, inner ring two ends are provided with outer groove; Two outer ring inner grooves are provided with ring skeleton one and seal stopper ring one and ring skeleton two and seal stopper ring two, described two seal stopper rings and two inner ring outer groove Spielpassung by interference fit respectively; Described circuit board one and tinsel one and seal stopper ring one are fixed by screws in respectively left side and the right side of ring skeleton one, and with ring skeleton one airtight cavity one; Described piezo-electric sheet one is bonded on tinsel one and is placed in airtight cavity one; Excited magnet one is connected with piezo-electric sheet one and tinsel one by screw; Described excited magnet three links together by screw and tinsel, and with excitation magnetic one ring over against; Described excitation magnet ring one is embedded in the interior described piezo-electric sheet one of seal stopper ring one and tinsel one is connected with circuit board one by wire group one; Sensor one is fixed on ring skeleton one and is placed in airtight cavity one; Described sensor one is connected with circuit board one by wire group two; Described seal stopper ring two and tinsel two and circuit board two with and be fixed by screws in respectively left side and the right side of ring skeleton two, and with ring skeleton two airtight cavities two; Described piezo-electric sheet two is bonded on tinsel two and is placed in airtight cavity two; Excited magnet two is connected with piezo-electric sheet two and tinsel two by screw; Described excited magnet four-way crosses screw and tinsel two links together; Described excitation magnet ring two is embedded in seal stopper ring two, and with excitation magnet ring two over against; Described piezo-electric sheet two and tinsel two are connected with circuit board two by wire group three; Sensor two is fixed on ring skeleton two and is placed in airtight cavity two; Described sensor two is connected with circuit board two by wire group four; Exciting magnet one and exciting magnet two are embedded in cylindrical roller both sides, and respectively with excited magnet one and excited magnet two over against; Between excited magnet one and exciting magnet one, between exciting magnet one and exciting magnet two and the opposite pole between exciting magnet two and excited magnet near installing; The close installation of like pole between excited magnet three and excitation magnet ring one, between excited magnet three and excited magnet four and between excited magnet four and excitation magnet ring two '.
2. a kind of roller bearing assembly according to claim 1, is characterized in that: the radius of described each magnet equates and by formula
calculate, wherein: R is the radius of roller bearing inner ring raceway, r is cylindrical roller radius, n
0quantity for cylindrical roller;
be called and determine angle ratio, Q2=360/n
0be the angle between the line of two adjacent exciting magnet one or two adjacent exciting magnet Er centers and its gyration center O, Q1 for by gyration center O and and the tangent straight line of described exciting magnet one or two between angle; Preferably determine angle than being k=1.5～3.5.
3. a kind of roller bearing assembly according to claim 1, it is characterized in that: exciting magnet one/bis-revolution week age is T=120 (R+r)/nR, wherein R is inner ring raceway radius, r is cylindrical roller radius, n (r/min) is inner ring rotating speed, t=240 action time (R+r) arctan (r
0/ (R+r))/n π R, wherein r
0for exciting magnet radius; Turning radius identical with the utility model exciting magnet one/bis-time that directly exciting magnet public affairs circle are in relative rotation T
0=60/n, be t action time
0=120arctan (r
0/ (R+r))/π n, the time is than γ=t
0/ t=R/2 (R+r), γ < 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319527.6U CN203926389U (en) | 2014-06-05 | 2014-06-05 | A kind of roller bearing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319527.6U CN203926389U (en) | 2014-06-05 | 2014-06-05 | A kind of roller bearing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926389U true CN203926389U (en) | 2014-11-05 |
Family
ID=51822204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420319527.6U Expired - Fee Related CN203926389U (en) | 2014-06-05 | 2014-06-05 | A kind of roller bearing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926389U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586602A (en) * | 2021-07-23 | 2021-11-02 | 上海交通大学 | Self-powered bearing roller and roller state monitoring device and working method |
-
2014
- 2014-06-05 CN CN201420319527.6U patent/CN203926389U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586602A (en) * | 2021-07-23 | 2021-11-02 | 上海交通大学 | Self-powered bearing roller and roller state monitoring device and working method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20150605 |
|
| EXPY | Termination of patent right or utility model |