CN101187404A - Bearing device with sensor and rolling bearing with sensor - Google Patents
Bearing device with sensor and rolling bearing with sensor Download PDFInfo
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- CN101187404A CN101187404A CNA2007101658738A CN200710165873A CN101187404A CN 101187404 A CN101187404 A CN 101187404A CN A2007101658738 A CNA2007101658738 A CN A2007101658738A CN 200710165873 A CN200710165873 A CN 200710165873A CN 101187404 A CN101187404 A CN 101187404A
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Abstract
The present invention relates to a bearing apparatus with a sensor and a rolling bearing with a sensor used to movers such as automobiles or railway carriers, facility machines of equipment, or machine tools. One of the embodiments comprises a sensor detecting conditions of the rolling bearing, a ring-shaped sensor cover housing the sensor therein and secured to a stationary-side bearing ring, and a ring shaped presser member secured to a bearing housing provided outside in a radius direction of the sensor cover, or secured to a shaft, and an opening portion is provided at a decided portion of the sensor cover, and projections standing toward a side of the presser member are furnished in the circumference of the opening portion, the presser member is defined with cutouts for inserting the projections, and the cutouts are arranged with the projections.
Description
The application's name that to be NSK Ltd. submit on April 28th, 2005 is called dividing an application of " belt sensor bearing means and belt sensor rolling bearing ", application number are 200380102231.3, international filing date is on October 24th, 2003 application for a patent for invention.
Technical field
The present invention relates to be used for the belt sensor bearing means and the belt sensor rolling bearing of moving bodys such as automobile, rail truck or plant machinery, work mechanism etc., particularly relate to and be applicable to and use Hall element and Hall IC to detect rotational speed, sense of rotation, even the belt sensor bearing means of phase place and belt sensor rolling bearing.
Background technique
For example, automobile extensive use antilock braking system (ABS) (ABC) in recent years, traction control system (TCS) control, such control must accurately detect the rotational speed of wheel.For this reason, detect the relative suspension arrangement rotational speed of the rolling bearing of supporting wheel (revolution) rotatably freely.
If detect the situation of the rotational speed (revolution) of rolling bearing, the belt sensor rolling bearings that turn-sensitive device is set near bearing that use more.Promptly, at the fixing a plurality of cylindrical shape magnet that form of alternating poles of rotary side, the magnetic flux of being located at the Hall element of fixed side and the sensor of Hall IC and the magnet that wheel together rotates by use carries out the detection of the rotational speed of wheel etc. in the belt sensor rolling bearing.
Above-mentioned belt sensor rolling bearing is not limited to above-mentioned automobile, and the speed that also is widely used in its moving body in rail truck etc. has the moving body of rotary component detects or the detection of sense of rotation.In addition, the revolution that for example is used for motor output shaft detects, the revolution detection of pump etc., be used to detect the revolution of the parts of rotation at various device machinery.
Like this, on industry in the extensive fields,, be extensive use of the belt sensor rolling bearing as the bearing of rotary component for the rotating speed of the parts that detect rotation is a rotational speed or for detecting sense of rotation or phase place etc.
The chimeric dress of existing belt sensor housing washer is attached on the cartridge housing.Therefore, the reasons such as thermal expansion difference of outer ring and bearing housing cause the gap of the internal diameter of the external diameter of outer ring and bearing housing to surpass admissible value, and the outer ring is with the inner ring rotation and rotate along the inner ring sense of rotation.
The corresponding inner ring in outer ring rotates and rotates, and dress is attached to sensor wrap and the also rotation simultaneously of sensor shell on the outer ring.So, take out the input signal cable of sensor external owing to be to take out outside relation and apply shear strength by being formed on undercut groove on the friction top that is fixed on the bearing housing etc. from sensor wrap and Sensor box.Therefore, under the situation of outer ring because of inner ring rotation increase rotation, at this moment input signal cable might break.
Therefore, motion has Figure 23 and band turn-sensitive device bearing 600 shown in Figure 24 in the prior art.The outer diametric plane of the Sensor box 606 of band turn-sensitive device bearing 600 is provided with and connects the sensor wrap 607 of accommodating turn-sensitive device 605 and towards radially outstanding rotation stop component 606a.Band turn-sensitive device bearing 600 is by preventing that outer ring 602a from following inner ring 601 and rotating in the undercut groove 609a that will cover rotary component 606a and be configured in friction top 609.(for example, the spy opens the 2002-213472 communique).
But in above-mentioned existing belt sensor bearing means 600, fixedly the structure of rotary component 606a and sensor wrap 607 is complicated, and producibility is low.
In addition, well-known Figure 25 and belt sensor bearing means 63 shown in Figure 26 in the prior art.Figure 25 represents the whole sectional drawing of belt sensor bearing means, and Figure 26 represents the belt sensor bearing means C-C line sectional drawing of Figure 25.Belt sensor bearing means 630 makes an end 641 of sensor 640 directly contact the reference level 631a of Stationary side lasso 631, is kept the fillet part 642 of cut sides 633 fixation of sensor 640 of important document 632 simultaneously by sensor, thereby sensor 640 is located.(for example the spy opens flat 10-311740 communique).
In the above-mentioned existing belt sensor bearing means 630, to connecting the carry-out part 634 and conductor 635 application of forces, or apply vibration, have the problem of sensor 640 like this in circumferential misalignment from the outside.At this moment, because the circumferential misalignment of sensor 640 causes sensor 640 that output error may take place.
Therefore, in belt sensor bearing means 630, resin is injected shaping between the reference level 631a of sensor maintenance important document 632 and Stationary side lasso 631, thereby suppress the circumferential misalignment of sensor 640.But, if carry out the insertion shaping etc. of resin then must carry out complicated processing, thus when causing worker and cost increase, also leave some room for improvement from this aspect.
Figure 27 is the major component sectional drawing of the existing belt sensor rolling bearing of expression.This belt sensor rolling bearing 700 is by being separately fixed at outer ring 710 with tested parts 720 such as magnetic induction sensor 72 1 and magnet or inner ring 711 forms.
That is, the magnetic induction sensor 721 that is embedded in sensor bracket 723 is fixed on the concavity groove 716 set on the aperture surface of outer ring at complete cycle scope crimping (PVC one デ ィ Application グ) by sensor holding device 725.In addition, tested parts 720 are configured on the planar surface portion that is pressed into the radial direction of the L shape parts 722 of diametric plane outside the inner ring, and are relative with sensor 721.
In the above-mentioned existing belt sensor rolling bearing 700, the radial dimension of supporting hour, on 710 aperture surfaces of outer ring by sensor bracket 723 fixedly magnetic induction sensor 721 be difficult.In addition, fixing tested parts 720 by L word shape parts 722 on the inner ring 711 outer diametric planes also is difficult equally dimensionally.
For addressing this problem,, consider on outer ring external diameter and the inner ring internal diameter rank portion fixation of sensor and tested parts to be set as Figure 28 and shown in Figure 29.But rank portion working surface can not centerless grinding, so size deviation is big, it is difficult being pressed into fixing parts separately.
General in addition belt sensor rolling bearing be configured in mostly parts that electrical interference such as motor produces near.So according to the mounting point, the magnetic field that tested parts form is upset in the external magnetic field that outside interference causes, sensor can not correctly detect the magnetic field that tested parts form.
And then belt sensor bearing means 800 shown in Figure 30 is known.Figure 30 represents the major component sectional drawing of existing belt sensor bearing means.As shown in figure 30, as belt sensor bearing means 800 form by with the magneto-dependent sensor 802 of turn-sensitive device 801 and pulse ring (パ Le サ one リ Application グ) (encoder) thus the structure that 803 sensor shell retaining rings 804 that are made of magnetic and shunt magnetics 805 coverings make the external leaks flux shunt.(for example, the spy opens the 2002-174258 communique).
In addition, as other modes such as Figure 31 and shown in Figure 32 of above-mentioned existing belt sensor bearing means 800.Figure 31 is the whole sectional drawing of other examples of the existing belt sensor bearing means 800 of expression, and Figure 32 is expression Figure 31 top (among the figure from upside) partial plan layout.
With reference to Figure 31 and Figure 32, in existing belt sensor bearing 850, the cylindric pulse ring 857 that the configuration permanent magnet constitutes on the peripheral end fixing metal core 856, metal-cored 856 of the inner ring 852 on right side among the figure of rolling element 853.Magneto-dependent sensor 860 is configured in the sensor shell 858 with gap with the outer circumferential face existence of pulse ring 857 in addition, and sensor shell 858 is fixed on the inboard of the sensor shell retaining ring 861 that is provided with on the inner peripheral surface end of outer ring 851.
In the belt sensor bearing 850, the inside of fixed sensing shell retaining ring 861 is provided with the shunt magnetic 862 that is made of magnetic on outer ring 851, and shielding flows into the leakage magnetic flux from the coil of the motor of outside etc. of magneto-dependent sensor 860.Belt sensor bearing 850 is provided with side plate 863 in addition, and on magneto-dependent sensor 860 tops of sensor shell retaining ring 861 otch window 861a is set, thereby the shielding leakage magnetic flux is to the loop of magneto-dependent sensor 860.
But, in above-mentioned existing belt sensor bearing 850, on the periphery of the outstanding fixing cylindric pulse ring (magnet) 857 of inner ring 852 sidepieces with pulse ring 857 at radial direction across disposing magneto-dependent sensor 860 such as Hall element with gap.Therefore, in the pole change of pulse ring 857 that detects rotation by magneto-dependent sensor 860 reliably, the surface portion, particularly belt sensor bearing 850 of the pulse ring 857 relative with magneto-dependent sensor 860 axially to go up the above length of regulation be necessary.Therefore, the surface portion of the pulse ring 857 relative with magneto-dependent sensor 860 must be in the length more than the axially outstanding regulation of belt sensor bearing 850.
As a result, in the above-mentioned magneto-dependent sensor 860, the axial length that shortens belt sensor bearing 850 is limited, can not satisfy the speed of a motor vehicle that comprises automobile and detect, the space-efficient requirement that requires when using the belt sensor bearing on the various devices.
In addition, the gap of pulse ring 857 and magneto-dependent sensor 860 is extending axially, and prolongs its axial gap trickling so form the grease that is filled in the bearing space, flows out outside structure easily like this, and this expectation is improved.
And then, when passing through the leakage magnetic field magnetic flux flows of outside brute force between the inner ring 852 of belt sensor bearing 850 and the outer ring 851, drain to pulse ring 857 and magneto-dependent sensor 860 sides via rolling element 853 magnetic fluxs.Therefore, the miscellaneous parts such as space that shunt magnetic 862 such shields are arranged between belt sensor bearing 850 and the magneto-dependent sensor 860 are necessary, so not only increase part count and cost, also increase and assemble man-hour, and have the problem of its necessity that space is set restriction miniaturization.
The object of the invention is to provide a kind of belt sensor bearing means and belt sensor rolling bearing.It can obtain high productivity and cost cutting effect, and can not need resin complicated processing such as insertion shaping and to sensor easily and hi-Fix, in addition, by shunting effectively from the leakage magnetic flux of outside with a spot of part count, can prevent the misoperation of the sensor that electrical interference such as motor etc. causes, and then realize guaranteeing that the rotation stop performance of necessary fixed side lasso fully and the shortening by axial direction length realize miniaturization.
Summary of the invention
For realizing above-mentioned purpose of the present invention, the present invention has following structure:
(1). belt sensor bearing means of the present invention has: rolling bearing, a plurality of rolling elements of packing between rotary side lasso and fixed side lasso form; Can detect the sensor of described rolling bearing state; The inboard is accommodated described sensor and is fixed on the annular sensor cover of described fixed side lasso; The bearing housing of described sensor wrap radial direction arranged outside or axle are gone up fixing ring-type pressing component,
The assigned position of described sensor wrap is provided with opening portion, the outstanding jut that is arranged on described pressing component side is arranged on the peripheral portion of this opening portion, form the notch that inserts described jut on the described pressing component, this notch cooperates described jut, thereby limits the rotation of described sensor wrap.
(2). in (1) described belt sensor bearing means, the signaling line that is connected with described sensor is inserted logical described opening portion.
(3). as (1) or (2) described belt sensor bearing means, the notch that described jut forms a described sensor wrap part is at warpage highlightedly radially.
(4). belt sensor bearing means of the present invention, a plurality of rolling element rotations that its rolling bearing keeps by retainer are packed into freely and are formed between a pair of lasso, sensor with state of the state of running shaft of the supporting of detecting or rolling bearing, the annular sensor cover that an axial end face of fixed side lasso is fixing, fixing annular sensor holding member on the described sensor wrap, the described sensor resiliently deformable by described sensor holding member is entrenched in the sensor mounting groove that the assigned position along the circumferential direction of described sensor holding member is provided with the fastening surplus of regulation.
(5). in (4) described belt sensor bearing means, described sensor holding member is entrenched in the inboard of described sensor wrap with predetermined gap.
(6). as (4) or (5) described belt sensor bearing means, predetermined distance spaced apart in the circumferential direction forms a plurality of locating studs on the described sensor holding member, outstanding vertically separately, and form a plurality of embedding holes on the position separately of corresponding described a plurality of locating studs of described sensor wrap, each self-corresponding described a plurality of embedding hole of the chimeric insertion of described a plurality of locating stud, thus described sensor wrap and described sensor holding member are positioned.
(7). as (6) described belt sensor bearing means, described a plurality of locating stud is inserted logical described a plurality of embedding holes respectively, connect the front end plastic deformation respectively of described a plurality of locating studs of these a plurality of embedding holes, thereby described sensor wrap and described sensor holding member are fixed.
(8). as (6) or (7) described belt sensor bearing means, the peripheral portion of described a plurality of embedding holes forms to the side-prominent teat of described sensor holding member, only in described sensor wrap of this teat and the engaging of described sensor holding member.
(9). as each described belt sensor bearing means of (6)～(8), seize the circuit substrate of described sensor between described sensor wrap and the described sensor holding member on both sides by the arms, described a plurality of locating studs of described sensor holding member connect the through hole that is provided with in the position of the correspondence of described circuit substrate, and each embedding hole of chimeric insertion.
(10). belt sensor bearing means of the present invention, a plurality of rolling elements rotations that its rolling bearing keeps by retainer are packed into freely and are formed between a pair of lasso, have the sensor of the state of the state of running shaft of the supporting of detecting or rolling bearing, the annular sensor cover that constitutes by magnetic material that an axial end face of fixed side lasso is fixing, with the sensor holding member that sensor is remained on the inboard and is made of nonmagnetic substance at the inboard fixing state of described sensor wrap, the electroconductive component that covers at least a portion of described sensor holding member and be provided with and have the electromagnetic shielding effect.
(11). belt sensor rolling bearing of the present invention, a plurality of rolling elements rotations that its rolling bearing keeps by retainer are packed into freely and are formed between a pair of lasso, the annular sensor holding member that has the sensor of the state of the state of running shaft of the supporting of detecting or rolling bearing, fixes and have the annular sensor cover that is made of electroconductive component of effectiveness, sensor is remained on the inboard and is made of nonmagnetic substance with the state that is fixed on described sensor wrap inboard at an axial end face of fixed side lasso.
(12). as (10) or (11) described belt sensor rolling bearing, described electroconductive component and described sensor holding member are arranged to one.
(13). belt sensor rolling bearing of the present invention has: inner ring, outer ring, the rolling element between described inner ring and described outer ring, described inner ring and described outer ring one go up install by the magnetic detection unit; Install on another of described inner ring and described outer ring with described by the relative magnetic induction sensor of magnetic detection unit, described any one by magnetic detection unit and described magnetic induction sensor is fixed on described inner ring or the described outer ring by the assembly that is made of magnetic material.
(14). as (13) described belt sensor rolling bearing, describedly set for the circular multi-pole magnet of terres rares by the magnetic detection unit.
(15). as (13) or (14) described belt sensor rolling bearing, in the concavity groove that described assembly riveted fixing is provided with on the outer diametric plane of the outer diametric plane of described inner ring or described outer ring.
(16). as (15) described belt sensor rolling bearing, described concavity groove is formed on along on the circumference of the outer diametric plane of the outer diametric plane of described inner ring or described outer ring, and described assembly is uniformly-spaced riveted at a plurality of positions along described circumference.
(17). as (16) described belt sensor rolling bearing, described caulking part figure place is determined according to following formula:
(caulking part figure place)=nZ ± X,
Wherein, n: positive integer
Z: the number of rolling element
X: integer more than or equal to 2.
(18). as (18) described belt sensor rolling bearing, described caulking part figure place is a prime number.
(19). belt sensor rolling bearing of the present invention, at least have outer ring, inner ring and rolling element, certain of outer ring or inner ring is a roulette wheel, another is a lasso, the end face of planar magnet is fixed on the roulette wheel by multipole attached magnetic, and is relative with the plane multipole attached magnetic surface of this magnet with gap and magnetic induction part is fixed on the fast pulley in the axial existence of bearing.
(20). as (14) or (19) described belt sensor rolling bearing, the magnet assembly that described magnet is installed on the roulette wheel extends to the fast pulley side, to stop up the bearing space between roulette wheel and fast pulley.
(21). as (20) described belt sensor rolling bearing, inner ring is a roulette wheel, and described magnet assembly is fixed on the stepped part of inner ring inner peripheral surface.
According to above-mentioned (1) described belt sensor bearing means, during the rolling bearing rotation, the jut that is provided with on the sensor wrap contacts with the inside of pressing component notch, thereby stops moving of sense of rotation.Like this, follow the rotation of rotary side lasso of rolling bearing and sensor wrap and be prevented from the rotation of the fixed side lasso of this sensor wrap one.Therefore, according to above-mentioned belt sensor bearing means, even rolling bearing fixed side lasso produces rotating force, also can stop the rotation of fixed side lasso reliably, and can not reduce producibility owing to simple in structure.
According to above-mentioned (2) described belt sensor bearing means, insert on the sensor signal lines of the opening portion that leads to sensor wrap, can not act on the shear strength that brings with inner contact of notch, prevent the broken string of signaling line etc. reliably.In addition,, can improve the tensile strength of signaling line, break when preventing to apply tension load according to by bonding, welding or resin molded fixing structure of inserting the signaling line of logical jut.
According to above-mentioned (3) described belt sensor bearing means, can reduce the part count and the assembling number of belt sensor bearing means, reduce cost.
According to above-mentioned (4) described belt sensor bearing means, the resiliently deformable that sensor is accepted the sensor holding member by fastening surplus is fixed on the sensor mounting groove that is arranged on the sensor holding member, thereby is fixed on the sensor holding member.Therefore, do not need the insertion, bonding etc. of resin for fixation of sensor.Therefore, can be easily and hi-Fix.
According to above-mentioned (5) described belt sensor bearing means, can prevent that temperature variation from expand to shrink the sensor holding member and cause the distortion of sensor wrap, prevents that sensor wrap from coming off from fixed side lasso (for example outer ring), or make the distortion of fixed side lasso.
According to above-mentioned (6) described belt sensor bearing means,, then can not need to insert complicated processing such as shapings and highi degree of accuracy is located sensor wrap and sensor holding member if each locating stud is inserted logical corresponding embedding hole respectively.
According to above-mentioned (7) described belt sensor bearing means, can prevent that producing locating stud at the plastic deformation position comes off from embedding hole.Therefore, even above-mentioned belt sensor bearing means applies external force such as vibration, can prevent reliably that also sensor from coming off and misplace.
At this, the thermal distortion that causes as plastic deformation concrete example such as heating, laser welding, ultrasonic fusing etc.
According to above-mentioned (8) described belt sensor bearing means, the engaging pressure around each embedding hole keeps highly, and the function of locating stud is enhanced.
According to above-mentioned (9) described belt sensor bearing means, sensor wrap and sensor holding member are positioned, and the through hole that forms on the circuit substrate is inserted logical locating stud, remains between sensor wrap and the sensor holding member so circuit substrate is located accurately.
In addition, sensor wrap and sensor holding member or circuit substrate are only in the teat engaging of the peripheral portion of embedding hole.Therefore, the position that is in contact with one another of circuit substrate and sensor wrap for example can be limited to the position beyond the circuit of circuit substrate.Therefore, can prevent the short circuit that causes that contacts of the circuit of circuit substrate and sensor wrap.
According to above-mentioned (10) described belt sensor bearing means, sensor utilizes covering sensor holding member at least a portion and the electroconductive component shielding electromagnetism with electromagnetic shielding effect that is provided with.Therefore, effectively shunted (making a circulation) from the flow direction of the leakage magnetic flux of outside by the electromagnetic shielding of electroconductive component.
In addition, the belt sensor bearing means of the invention described above does not need sensor shell retaining ring 804,861 and shunt magnetic 805 and side plate 863 as the belt sensor bearing means 800 of Figure 30～shown in Figure 31 and belt sensor rolling bearing 850.Therefore, can cut down part count, reduce and assemble man-hour.
According to above-mentioned (11) described belt sensor rolling bearing, sensor wrap is made of the electroconductive component with electromagnetic shielding effect.Therefore, utilize the electromagnetic shielding of electroconductive component by effectively shunting (making a circulation) from the leakage magnetic flux of outside.In addition, part count can further be cut down, and reduces and assembles man-hour.
According to above-mentioned (12) described belt sensor bearing means or belt sensor rolling bearing, can electroconductive component be installed on the sensor holding member with higher intensity, and can cut down part count, reduce in addition and assemble man-hour.
As electroconductive component and the integrally formed method of sensor holding member is the dual-color forming of electroconductive resin and bonding or be pressed into fixing etc.
Electroconductive component can use iron powder, magnetic, sneak into resin and rubber, coating and or the binder of carbon black.
According to above-mentioned (13) described belt sensor rolling bearing,,, reduce the external magnetic field to by the influence of magnetic detection unit and magnetic induction sensor as magnetic screening action to the external magnetic field as the assembly of magnetic.Therefore, can improve the testing precision of magnetic induction sensor, measure accurately.
According to above-mentioned (14) described belt sensor rolling bearing, can not damage by the performance of magnetic detection unit even be exposed to strong magnetic field circumstance yet, can accurately be rotated speed.In addition, as alkene great soil group magnetic material for example neodymium iron boron (Nd-Fe-B) material and SmCo (Sm-Co) material, as mould-forming method can be any means of sintering, compression forming, injection molding, but certain neodymium, iron, the boron that it is desirable to maximum energy storage increase and the external magnetic field is had patience, wherein good strength also can in conjunction with magnet (ボ Application De magnetite).In addition in conjunction with preferably utilizing the big compression forming of energy storage to form in the magnet.
According to above-mentioned (15) described belt sensor rolling bearing, the rank portion of precision machining difficulty etc. needn't be set, and exactly magnetic induction sensor and detected parts be installed on inner ring and the outer ring.
According to above-mentioned (16) described belt sensor rolling bearing, can utilize assembly to improve the installation precision of sensor.
According to above-mentioned (17) or (18) described belt sensor rolling bearing, can reduce issuable certain unusual sound of bearing and vibration etc.
According to above-mentioned (19) described belt sensor rolling bearing, use the magnet of the multipole attached magnetic of planar, with bearing axially on have the gap and relative state configuration magnetic induction part, so can make this belt sensor bearing integral axial thickness attenuation.
According to above-mentioned (20) described belt sensor rolling bearing,, can prevent that also the grease in the bearing space from flowing out the bearing outside even the bearing space between roulette wheel and the fast pulley is not provided with seal ring in addition.And then, make this magnet assembly with magnetic material, thereby, also can shield and advance to magnetic induction parts such as magnet and Hall IC from the Magnetic leakage flux of rolling element even there is powerful magnetic field generating unit on every side.As a result, the mistake in computation that the magnetic induction part misoperation causes velocity pulse can not take place, improve the pulse measurement precision.In addition, the magnet assembly uses as the shield member of magnetic flux, so do not need other parts, can realize cost degradation.
According to above-mentioned (21) described belt sensor rolling bearing, the seal ring that existing bearing is used can use on former state ground, can make the outflow of grease reduce to the requirement of standard rolling bearing.
Description of drawings
Fig. 1 is the major component sectional drawing of the belt sensor bearing means of expression first embodiment of the invention;
Fig. 2 is the stereogram of sensor wrap of the belt sensor bearing means of presentation graphs 1;
Fig. 3 is the major component sectional drawing that the belt sensor bearing means of presentation graphs 1 is fixed on the state on the bearing housing;
Fig. 4 is the right hand view of presentation graphs 3;
Fig. 5 is the figure of pressing component of the belt sensor bearing means of presentation graphs 3;
Fig. 6 is the stereogram of sensor wrap of the belt sensor bearing means of expression second embodiment of the invention;
Fig. 7 is the stereogram of sensor wrap of the belt sensor bearing means of expression third embodiment of the invention;
Fig. 8 is the stereogram of sensor wrap of the belt sensor bearing means of expression four embodiment of the invention;
Fig. 9 is the sectional drawing of the belt sensor bearing means of expression fifth embodiment of the invention;
Figure 10 is the major component amplification profile of the belt sensor bearing means of Fig. 9;
Figure 11 is the exploded perspective view of sensor wrap, sensor holding member and the circuit substrate of the belt sensor bearing means of presentation graphs 9;
Figure 12 is near the major component amplification stereogram of sensor mounting groove of expression sensor holding member;
Figure 13 is the whole sectional drawing of the belt sensor bearing means of expression sixth embodiment of the invention;
Figure 14 is the whole sectional drawing of the belt sensor bearing means of expression seventh embodiment of the invention;
Figure 15 is the sectional drawing of the belt sensor rolling bearing of expression eighth embodiment of the invention;
Figure 16 (a), Figure 16 (b) and Figure 16 (c) are that the riveted joint of expression sensor frame (adds
) figure of method;
Figure 17 is the sectional drawing of expression magnetic induction sensor and sensor positioning element;
Figure 18 is the sectional drawing of the structure of expression magnet;
Figure 19 is the sectional drawing of the belt sensor rolling bearing of expression ninth embodiment of the invention;
Figure 20 is the sectional drawing of the belt sensor bearing of expression tenth embodiment of the invention;
Figure 21 is the sectional drawing of the belt sensor bearing of expression eleventh embodiment of the invention;
Figure 22 is the part sectioned view of the belt sensor bearing of expression twelveth embodiment of the invention;
Figure 23 is the front elevation of the rotation chocking construction of the existing band of expression turn-sensitive device bearing;
Figure 24 is the sectional drawing of the rotation chocking construction of expression Figure 23;
Figure 25 is the sectional drawing of the existing belt sensor bearing means of expression;
Figure 26 is the C-C sectional drawing of the belt sensor bearing means of Figure 25;
Figure 27 is the major component sectional drawing of the existing belt sensor rolling bearing of expression;
Figure 28 is the whole sectional drawing of other examples of the existing belt sensor rolling bearing of expression;
Figure 29 is other example major component sectional drawings of the existing belt sensor rolling bearing of expression;
Figure 30 is the major component sectional drawing of other examples of the existing belt sensor bearing means of expression;
Figure 31 is the major component sectional drawing of the example of the existing belt sensor rolling bearing of expression;
Figure 32 is the partial plan of expression Figure 30.
Embodiment
Describe the mode of execution of belt sensor bearing means of the present invention and belt sensor rolling bearing below with reference to the accompanying drawings in detail.In addition, belt sensor bearing means of the present invention and belt sensor rolling bearing are not limited to these mode of executions.
First mode of execution
Fig. 1 is the major component sectional drawing of first mode of execution of expression belt sensor bearing means of the present invention.Fig. 2 is the stereogram of sensor wrap of the belt sensor bearing means of presentation graphs 1.Fig. 3 is the major component sectional drawing that the belt sensor bearing means of presentation graphs 1 is fixed on the state on the bearing housing; Fig. 4 is the right hand view of Fig. 3; Fig. 5 is the figure of pressing component of the belt sensor bearing means of presentation graphs 3.
As shown in Figure 1, belt sensor bearing means 1 has rolling bearing 10.Rolling bearing 10 have inner ring 12 as the rotary side lasso, as the outer ring 13 of fixed side lasso and between inner ring 12 and outer ring 13 a plurality of rolling elements 11 free to rotate.A plurality of rolling elements 11 are circumferentially uniformly-spaced being kept by not shown retainer.
In addition, belt sensor bearing means 1 has the sensor 20 of the state that can detect rolling bearing 10.
As Fig. 1 and shown in Figure 2, sensor wrap 26 for example sheet metal processing metal plate forms, and its annulus 26a, the lip portions 26b that is located at annulus 26a axial distolateral (left side among Fig. 2), side face 26c that is located at axial the other end (right side among Fig. 2) of annulus 26a that can accommodate sensor by the inboard constitutes.
The assigned position of the annulus 26a of sensor wrap 26 forms opening portion 28.The peripheral portion of opening portion 28 is provided with from annulus 26a at radially outstanding a pair of jut 26d.Thereby a pair of jut 26d respectively by the notch that forms on the part with the annulus 26a of sensor wrap 26 radially highlightedly warpage form.In the present embodiment, a pair of jut 26d from notch be flexed into two door leafs hinged door shape (
Yin Open I shape).
As shown in Figure 3, in the belt sensor bearing means, rolling bearing 10 is installed on the cartridge housing 4 by pressing component 2 and bolt 3.The axial end face side that sensor 20 is arranged in rolling bearing 10 constitutes (Fig. 3 right side side).
As shown in Figure 4 and Figure 5, pressing component 2 forms ring-type, circumferentially has a compartment of terrain and forms cutting part (calling notch in the following text) 2a.The circumferential width of notch 2a is bigger slightly than jut 26d circumferential width.
In the belt sensor bearing means 1, a pair of jut 26d of sensor wrap 26 is positioned at the inboard of the notch 2a of pressing component 2.Therefore, in the belt sensor bearing means 1, input/output signal line 27 is not had the ground of interference the outer ring 13 of rolling bearing 10 is fixed on the bearing housing 4.
In addition, the edge portion of the circumferential side of jut 26d contacts with the internal face of notch 2a, and sensor wrap 26 is not kept by pressing component 2 revolvably like this.In other words, sensor wrap 26 is followed as the rotation of the inner ring 12 of rotary side lasso and is prevented from, thereby the outer ring 13 of fixing this sensor wrap 26 rotates too and is prevented from.
The filling signal line is fixing with resin 29 between the jut 26d, and signaling line is fixing to be fixed on the sensor wrap 26 the input/output signal line 27 of the sensor 20 of inserting logical opening portion 28 with resin 29.Like this, improve, can prevent tensile load reliably just in case the broken string when putting on input/output signal line 27 from the tensile strength of the input/output signal line 27 of sensor wrap 26.
In addition, as to the fixing structure of input/output signal line 27 of jut 26d, be not limited to above-mentioned resin moldedly, also can utilize bonding or welding.In addition, also can be that input/output signal line 27 is entrenched in the structure of jut 26d and by making the jut plastic deformation sandwich the structure of input/output signal line 27.
According to the belt sensor bearing means 1 of present embodiment, the jut 26d that is located at sensor wrap 26 during rolling bearing 10 rotations is by stoping moving of sense of rotation with inner contact of the notch 2a of the pressing component 2 that is fixed on bearing housing 4.So, follow the rotation of inner ring 12 of rotary side lasso of rolling bearing 10 and sensor wrap 26 and be prevented from outer ring (fixed side lasso) 13 rotations of sensor wrap 26 one.Therefore, according to above-mentioned belt sensor bearing means 1,, rolling bearing 10 outer rings 13 also can stop outer ring 13 rotations reliably even producing rotating force.
Therefore, can not act on shear strength, tensile load etc. on the input/output signal line 27 of the logical sensor 20 of opening portion 28 interpolations of sensor wrap 26.Thus, the broken string of input/output signal line 27 etc. can reliably be stoped, so improve the reliability and the life-span of sensor 20.
In addition,, can prevent the creep of outer ring 13, therefore, improve the reliability and the life-span of rolling bearing 10 owing to can stop outer ring 13 rotations.
And then, if as above-mentioned mode of execution form jut 26d, there is no need on outer ring 13, to be provided for to stop the unnecessary groove of outer ring 13 rotations or otch etc., so, can avoid rolling bearing 10 rigidity to reduce.And the existing rotation stop component that covers the input/output signal line etc. of newly being provided with also there is no need, so can reduce worker the time.
Variation as the shape of jut illustrates second mode of execution to the, four mode of executions with reference to the accompanying drawings below.
Second mode of execution
Fig. 6 is the stereogram that is used to illustrate second mode of execution of belt sensor bearing means of the present invention.In addition, in the mode of execution of following explanation, to giving same symbol or suitable symbol in the drawings, to simplify or to omit explanation with the parts of equal structure function such as parts that illustrated etc.
In the present embodiment, thus the jut 31 of sensor wrap 30 by the part of sensor wrap 30 is formed notch radially highlightedly warpage form single door leaf hinged door shape.
Other structures are identical with above-mentioned first mode of execution with effect.
The 3rd mode of execution
Fig. 7 is the stereogram of sensor wrap of rolling bearing of the belt sensor bearing means of expression third embodiment of the invention.
In the present embodiment, the jut 41 of sensor wrap 40 is by forming the part of sensor wrap 40 notch radially highlightedly to forming single door leaf hinged door shape with the axial opposite side of above-mentioned second mode of execution (side face 40c) warpage.
Other structures are identical with second mode of execution with above-mentioned first mode of execution with effect.
The 4th mode of execution
Fig. 8 is the stereogram of rolling bearing of the belt sensor bearing means of expression four embodiment of the invention.
In the present embodiment, a pair of jut 51 forms circumferentially being flexed into two door leafs hinged door shape by notchs that sensor wrap 50 part is formed on sensor wrap 50.
Other structures are identical with above-mentioned first mode of execution to the, three mode of executions with effect.
In addition, neutralize second mode of execution or the 3rd mode of execution of present embodiment is same, also can form jut and circumferentially be flexed into single door leaf hinged door shape to sensor wrap.
As mentioned above, in above-mentioned second mode of execution to the, four mode of executions, sensor wrap 30,40,50 forms the structure of inboard that the outstanding jut 31,41,51 that is arranged on annulus 30a, 40a, the 50a is configured in the notch 2a of Fig. 4 and pressing component 2 shown in Figure 5.Like this, because jut 31,41,51 utilizes pressing component 2 non-rotatably to be kept, so even effect outer ring 13 rotating forces also can stop and follow inner ring 12 rotations and outer ring 13 and sensor wrap 26 rotations.
In addition, do not need existing rotation stop component 107 (Figure 23 and Figure 24) etc., and can guarantee the necessary rotation stop performance of outer ring 13 (fixed side lasso) fully, guarantee high producibility simultaneously.Thus, realize part count and the assembling reduction in man-hour, realize that cost reduces.
Owing to can stop the rotation of outer ring 13 reliably, can prevent to apply loads such as shear strength to the input/output signal line 27 of the logical sensor 20 of opening portion 32,42,52 interpolations of sensor wrap 30,40,50 from the belt sensor bearing means of above-mentioned second mode of execution to the, four mode of executions.Thus, can prevent the broken string of input/output signal line 27 etc. reliably, improve the reliability and the durability of sensor 20.
In addition, can prevent the creep of outer ring 13, improve the reliability and the durability of rolling bearing 10.
And then, owing to needn't on outer ring 13, be provided for stoping the unnecessary groove of outer ring 13 rotations or otch etc., so can avoid bearing rigidity to reduce.
For example, applicable to being the fixed side lasso, with the outer ring belt sensor bearing means of rotary side lasso with the inner ring.
The 5th mode of execution
Fig. 9 is the sectional drawing of the belt sensor bearing means of expression fifth embodiment of the invention; Figure 10 is the major component amplification profile of the belt sensor bearing means of Fig. 9; Figure 11 is the exploded perspective view of sensor wrap, sensor holding member and the circuit substrate of the belt sensor bearing means of presentation graphs 9; Figure 12 is near the major component amplification stereogram of sensor mounting groove of expression sensor holding member.
As shown in Figure 9, in belt sensor bearing means 10, the board structure of rolling bearing 111 is identical with first mode of execution shown in Figure 1, give same symbol and omit explanation, but Fig. 1 omits illustrated retainer 14 and is illustrated in Fig. 9, and a plurality of rolling elements 11 remain on circumferentially respectively at interval by retainer 14.
A circumferential end face side (right side side among Fig. 9) of rolling bearing 111 is provided with sensor 120.
As shown in figure 10, sensor wrap 126 for example be to the sheet metal of magnetic material through sheet metal processing and form, its annulus 126a, the lip portions 126b that is located at annulus 126a axial distolateral (left side among Figure 10), side face 126c that is located at axial the other end (right side among Figure 10) of annulus 126a that can accommodate sensor 120 by the inboard constitutes.The outer periphery portion of the outer ring (lasso of fixed side) 13 of sensor wrap 126 by lip portions 126b being entrenched in rolling bearing 111 is fixed on the outer ring 13.
As Fig. 9～shown in Figure 11, separate predetermined distance at circumferencial direction on the sensor holding member 121 and be provided with a plurality of locating studs 127, outstanding vertically respectively.Separate predetermined distance on the sensor wrap 126 in a circumferential direction and be provided with a plurality of embedding hole 126d.The chimeric respectively embedding hole 126d that inserts correspondence of each locating stud 127.And each locating stud 127 connects each embedding hole 126d, thus sensor wrap 126 and sensor holding member 121 location.In addition, connect front end (right part among Figure 10) plastic deformation separately of each locating stud 127 in each embedding hole 126d, thereby sensor wrap 126 and sensor holding member 121 interfix.
In addition, the front end of each locating stud 127 forms by plastic deformation respectively and has the hemispherical of planar surface portion 127a.At this moment, planar surface portion 127a is arranged in the side face 126c inboard slightly (Figure 10 left side) of sensor wrap 126.In addition, the plastic deformation concrete example is as the thermal distortion that utilizes heating, laser welding, ultrasonic fusing etc.
Each embedding hole 126a respectively vertically (left and right directions among Fig. 9) wear a plurality of in the position corresponding of sensor wrap 126 with each locating stud 127.The peripheral portion of each embedding hole 126d of sensor wrap 126 forms to the outstanding teat 126e of sensor holding member 121 sides (left side among Fig. 9).In this teat 126e, its structure is, makes sensor wrap 126 and sensor holding member 121 or circuit substrate 123 engagings, do not contact the position beyond the teat 126e.
In addition, with reference to Fig. 9 and Figure 11, the locating stud 127 of the sensor holding member 121 of the embedding hole 126d of chimeric insertion sensor wrap 126 connects the through hole 123a that wears in the position of correspondence, and circuit substrate 123 is seized on both sides by the arms between sensor wrap 126 and sensor holding member 121.The electronic circuit (not shown) of 122 testing signals of processes sensor main body is installed on the circuit substrate 123.The teat 126e that the contact position of circuit substrate 123 and sensor wrap 126 utilizes the peripheral portion of each embedding hole 126d of sensor wrap 126 to form limits the electronic circuit position in addition of circuit substrate 123.Thus, the electronic circuit that prevents circuit substrate 123 causes short circuit with contacting of sensor wrap 126.
The effect of the belt sensor bearing means of present embodiment is described.
The resiliently deformable that the belt sensor bearing means 122 of sensor 120 is followed sensor holding member 121 is entrenched on the sensor mounting groove 121a that the assigned position along the circumferential direction of sensor holding member 121 is provided with to stipulate fastening surplus, thereby can be easily and location accurately.Sensor holding member 121 is entrenched in the inboard of sensor wrap 126 with specified gap.
In addition, in the embedding hole 126d of the chimeric insertion corresponding sensor cover 126 of each locating stud 127 difference of sensor holding member 121, do not need to insert the complicated processing such as (イ Application サ one ト shapings) that is shaped, sensor wrap 126 and sensor holding member 121 can hi-Fixs.
And then each locating stud 127 of sensor holding member 121 connects each embedding hole 126d with the state of each embedding hole 126d of chimeric insertion sensor wrap 126 respectively, and the plastic deformation respectively of the front end of each locating stud 127 that connects.Therefore, even when applying external force such as vibration, can prevent reliably that also sensor main body 122 from coming off or misplace.
Each locating stud 127 of sensor holding member 121 connects the through hole 123a of the corresponding position setting of circuit substrate 123, each embedding hole 126d of the correspondence of chimeric insertion sensor wrap 126.Therefore, circuit substrate 123 hi-Fixs remain between sensor wrap 126 and the sensor holding member 121.
In addition, the peripheral portion of each embedding hole 126d of sensor wrap 126 forms to the side-prominent teat 126e of sensor holding member 121, only at this teat 126e, and sensor wrap 126 and sensor holding member 121 or circuit substrate 123 engagings.Therefore, the contact position of sensor wrap 126 and circuit substrate 123 is limited to the electronic circuit position in addition of circuit substrate 123.Thus, the electronic circuit that can reliably prevent circuit substrate 123 contacts with sensor wrap 126 and causes short circuit.
In the belt sensor bearing means 110 of present embodiment, the resiliently deformable that the sensor main body 122 of sensor 120 utilizes sensor holding member 121 is entrenched on the sensor mounting groove 121a that the assigned position along the circumferential direction of sensor holding member 121 is provided with to stipulate fastening surplus.Therefore, do not need the complicated processing such as insertion shaping of resin, can be easily and hi-Fix sensor main body 122 and provide, thus and have a belt sensor bearing means 110 of low cost and high measurement accuracy.
The 6th mode of execution
Figure 13 is the whole sectional drawing of the belt sensor bearing means of expression the 6th mode of execution of the present invention.
As shown in figure 13, in the belt sensor bearing means 210, on the axial end face side (right side side among Figure 13) of rolling bearing 211 magnetic induction sensor 220 is set.It is identical with the 5th mode of execution shown in Figure 9 that the basic structure of rolling bearing 211 and magnetic induction sensor 220 is removed the following position that will describe in detail, gives same-sign and omit explanation.
In magnetic induction sensor 220, on the inner peripheral surface of sensor holding member 221 with sensor holding member 121 integrally formed electroconductive components 228 with electromagnetic shielding effect.The inner peripheral surface of electroconductive component 228 covering sensor holding members 121, shielding is from the electromagnetism of bearing bore diameter side direction sensor main body 222 directions.
The method concrete example that sensor holding member 121 and electroconductive component 228 are integrally formed such as the dual-color forming (2 look moulding) of electroconductive resin, bonding or be pressed into fixing etc.Resin, rubber, coating or binder that electroconductive component 228 can use iron powder, magnetic, carbon black to sneak into.
In addition, in magnetic induction sensor 220, replace two Hall IC being installed, also can form position probing is used Hall IC with Hall IC and revolution structure is set with predetermined angular.
In the belt sensor bearing means 210 of present embodiment, the 228 shielding electromagnetism of the electroconductive component with electromagnetic shielding effect of the inner peripheral surface of sensor holding member 121 are located in the bearing bore diameter side utilization of the sensor main body 122 of magnetic induction sensor 220.In addition, multi-pole magnet (encoder) 125 is configured between sensor main body 122 and the sensor holding member 121.
In existing belt sensor bearing means and the belt sensor rolling bearing (Figure 30 and Figure 31), when being installed on the not shown motor, produce magnetic field, leakage magnetic flux flows along metal-cored → multi-pole magnet → sensor main body → sensor wrap.
With respect to this, in the belt sensor bearing means 210 of the present invention, the leakage magnetic flux from the bearing bore diameter side to outside diameter can prevent to enter sensor wrap 126 by electroconductive component 228 shown in arrow A among Figure 13, and circuitous along the surface of sensor wrap 126.That is, sensor main body 122 is not owing to flowing into leakage magnetic flux, so the testing signal of the leakage magnetic flux that do not exert an influence.
Therefore, sensor main body 122 and multi-pole magnet 125 shield from the bearing bore diameter side leakage magnetic flux to outside diameter by electroconductive component 228 respectively, and leakage magnetic flux is shunted effectively.Therefore, belt sensor bearing means 210 can prevent the misoperation of magnetic induction sensor 220.
In addition, from bearing bore diameter side sensors configured main body 122, multi-pole magnet 125, sensor wrap 126 in turn, even if the external leaks magnetic flux is invaded sensor part, as the stream in magnetic field owing to the flow direction in the part magnetic field of metal-cored 124-multi-pole magnet 125-sensor main body 122 oppositely is difficult to flow sensor portion, most being shunted of the leakage magnetic flux of intrusion in other parts.
The 7th mode of execution
The whole sectional drawing of representing the belt sensor bearing means of seventh embodiment of the invention during Figure 14.In addition, below in Shuo Ming the present embodiment, give same-sign or suitable symbol among the figure such as parts about the structure function identical with parts that illustrated etc., simple or omit explanation.
As shown in figure 14, in the belt sensor bearing means 230 in the 7th mode of execution, replace to use the electroconductive component 228 (with reference to Figure 13) integrally formed with the sensor holding member 121, sensor wrap 231 is formed by electroconductive component.
That is, sensor wrap 231 has the inboard and can accommodate the internal diameter annulus 231d that the bearing bore diameter side end of side face 231c, side face 231c that axial his end (right side among Figure 14) of lip portions 231b, external diameter annulus 231a that the external diameter annulus 231a of magnetic induction sensor 220, external diameter annulus 231a axial one distolateral (left side among Figure 14) be provided with is provided with is provided with.Sensor wrap 231 is by chimeric being fixed on the outer ring 13 of the 13b of inner circumference edge portion with lip portions 231b and belt sensor bearing means 230 outer rings (fixed side lasso) 13.
At this, in belt sensor bearing means 230, leakage magnetic flux from the bearing bore diameter side to outside diameter prevents to enter sensor wrap 231 inboards by the internal diameter annulus 231d of sensor wrap (electroconductive component) 231 shown in arrow B Figure 14, and circuitous along the surface of sensor wrap 231.That is, sensor main body 122 does not flow into owing to leakage magnetic flux, so the testing signal of the leakage magnetic flux that can not exert an influence.
And then, there is no need to be provided with respectively sensor wrap and electroconductive component, can cut down part count and installation work-hour better.
Other structures are identical with above-mentioned the 6th mode of execution with effect.
Belt sensor bearing means 230 according to present embodiment, the sensor wrap 231 shielding electromagnetism that the sensor main body 122 of magnetic induction sensor 220 forms by electroconductive component, and multi-pole magnet 125 is configured between sensor main body 122 and the sensor holding member 232.
Therefore, can shunt leakage magnetic flux effectively with the few parts number from the outside.Therefore, belt sensor bearing means 230 can prevent the misoperation of magnetic induction sensor 220.
In addition, the invention is not restricted to above-mentioned mode of execution, can do suitable distortion, improvement etc.
For example, above-mentioned magnetic induction sensor 220 can use other forms of sensor.
The 8th mode of execution
Figure 15 is the sectional drawing of the belt sensor rolling bearing of expression eighth embodiment of the invention.It is identical with the 5th mode of execution shown in Figure 9 that the basic structure of belt sensor rolling bearing 310 is removed the following position that will describe in detail, gives same-sign and omit explanation.
That is, in the belt sensor rolling bearing 310, extend towards inner ring 12 near a side of outer ring 13 seal ring 15 is set, seal ring 15 covers bearing space with both states of contact inner ring 12 and outer ring 13.In addition, the end of the outer diametric plane 13b of outer ring 13 along the outer ring 13 circumferential formation concavity groove 16.
The sensor part 330 of belt sensor rolling bearing 310 is by being constituted by the magnet 334 of magnetic detection unit, liner 335, circuit substrate 336, sensor positioning element 337 as the sensor wrap 331 of assembly, the magnet frame 332 as assembly, magnetic induction sensor 333, conduct.
Figure 16 (a) and Figure 16 (b) are that the outer diametric plane 13b of expression outer ring 13 goes up a method that forms an end 331a of riveted fixing sensor wrap 331 on the concavity groove 16.At this, the circumferencial direction of the sensor wrap 331 of riveting machine 400 upper edge ring-types uniformly-spaced is that the position of equal angles configuration nZ ± X is provided with riveted joint bolt 401.Riveting machine 400 will be riveted bolt 401 and be embedded, thus the front end 401a of riveted joint bolt 401 with an end 331a riveted fixing of sensor wrap 331 in concavity groove 16.At this, n is that positive integer, Z are that ball number, the X of bearing is the integer more than or equal to 2.That is the number prime number preferably at riveted joint position.In addition, the sensor wrap of riveted fixing also can use shown in Figure 16 (c) end that the sensor wrap 340 of otch uniformly-spaced is set.
In the rolling bearing, inner race track or outer race track produce unusual sound or bearing and vibrate with certain frequency if there is the fluctuating with bigger outstanding height.The bearing pack that will have such fluctuating installs to when spool last, and axle carries out special oscillating motion (ふ れ ま わ り ?Move), and this is unfavorable in practicality.Unusual sound and vibration when the number of projection be generation during at nZ, nZ ± 1.
Riveted joint might make bearing outer ring or inner ring distortion, and inner ring or outer ring might produce nZ, nZ ± 1 projection.Therefore, in the present embodiment,, the caulking part figure place is set as nZ ± 1X (X is more than or equal to 2) for not producing nZ, nZ ± 1 projection, thus the prevention generation of vibration.
And magnet frame 332 is warpage and the front end circular magnetic part relative with the front end of sensor wrap 331.In the present embodiment, magnet frame 332 is pressed into the outer diametric plane end 12b that is fixed on inner ring 12.Magnet frame 332 is extended to outer ring 13 sides from inner ring 12, stops up bearing space, has the function that covers bearing space.
The position configuration magnet 334 relative on the front end of magnet frame 332 with magnetic induction sensor 333.By this configuration, sensor 331 and magnet frame 332 remain on magnetic induction sensor 333 and magnet 334 is not exposed to extraneous position.At this, sensor wrap 331 and magnet frame 332 be owing to be made of magnetic material, so have the function that the variation that is used to make the magnetic field that magnetic disturbance causes is not delivered to the magnetic shielding of magnetic induction sensor 333 and magnet 334.In addition, the material of magnet 334 further improves the patience to external magnetic by neodymium iron boron (Nd-Fe-B) or SmCo (Sm-Co).
Figure 17 is the sectional drawing of expression magnetic induction sensor 333 and sensor positioning element 337.Sensor positioning element 337 is the circular parts that are configured on the sensor wrap 331.Sensor positioning element 33 7 is configured to the rotating center of axle concentric.The sensor positioning element 337 of present embodiment forms magnetic induction sensor 333 positioning and fixing three recess 337a on the diametric plane outside, inserts fixedly magnetic induction sensor 333 in each recess 337a respectively.In the present embodiment, magnetic induction sensor 333 is with respect to the i.e. rotating center predetermined angular and being configured on the same circumference at interval of axle in the center of sensor positioning element 337.
In addition, the quantity of the magnetic induction sensor 333 of installation can be arranged to any number according to the use variation of belt sensor rolling bearing, and the quantity of the recess 337a that forms on the sensor positioning element 337 also can change arbitrarily according to the sensor number.The structure of present embodiment is to detect the structure at phase angle of each phase of three phase electric machine, is the revolution that detects axle, and minimum one of sensor gets final product, and for detecting sense of rotation simultaneously, two of sensors get final product.
Figure 18 is the sectional drawing of the structure of expression magnet 334.The outer diametric plane of magnet 334 is fixed on the magnet frame 332, and magnetic induction sensor 333 is relative with sensor positioning element 337.In the present embodiment, in the magnet 334, eight N utmost point 334a and eight S utmost point 334b that shape is identical connect into ring-type separately, and the structure that replaces of N utmost point 334a and S utmost point 334b.Magnet 334 is the same with sensor positioning element 337, is configured to the rotating center of axle with one heart, follows inner ring 12 rotation and rotates.Magnet 334 is because concentric with sensor positioning element 337, and how and not the distance of magnet 334 and each magnetic induction sensor 333 no matter rotational position of magnet 334 changes.Each N utmost point 334a and S utmost point 334b dispose to such an extent that Magnetic flux density is strong in magnetic induction sensor 333 directions.
In addition, the quantity of the magnetic pole that had of magnet 334 and the quantity of magnetic induction sensor 333 can change to any number according to the behaviour in service of belt sensor rolling bearing 310 equally.
In the belt sensor rolling bearing 310 of the 8th mode of execution, keep the sensor wrap 331 of magnetic induction sensor 333 to be riveted on concavity groove 16 interior being fixed that form on the outer diametric plane of outer ring 13 by a plurality of positions.And then, keep the magnet frame 332 of magnet 334 to be pressed on the end that is fixed on inner ring 12.Therefore, the many rank portions of size deviation need not be set, magnetic induction sensor 333 and magnet 334 are configured in position accurately.
In addition, be raw-material sensor wrap 331 and magnet frame 332 because covering outer magnetic field with magnetic material, so the variation of external magnetic field can not influence magnetic induction sensor 333 and magnet 334.Like this, can not be subjected to the external magnetic field variable effect and measure accurately.
The caulking part figure place is owing to being set at nZ ± X (X is more than or equal to 2), so can suppress because riveted joint causes distortion and a production nZ and nZ ± 1 fluctuating on the bearing track face.Therefore, can provide the high-precision belt sensor rolling bearing that does not produce unusual sound or vibration.
In addition, the bearing that the belt sensor rolling bearing 310 of present embodiment can be used as axles such as automobile, rail truck, system iron equipment, work mechanism uses, and detects the rotational speed of the axle of each device.
The 9th mode of execution
Figure 19 is the sectional drawing of the belt sensor rolling bearing of expression ninth embodiment of the invention.Belt sensor rolling bearing 350 has: the rolling element that inner race track 351a that is embedded in inner ring 351 on the axle outward, is embedded in outer ring 352 in the case, forms respectively along the aperture surface of the outer diametric plane of inner ring 351 and outer ring 352 and outer race track 252a rotate is spheroid 353, the retainer 354 that keeps spheroid 353, from establishing and cover the shield plate 355 that is formed on the bearing space between inner ring 351 and the outer ring 352 to inner ring 351 is upright near the side of outer ring 352.In the present embodiment, near the end of the outer diametric plane 351b of inner ring 351 along the circumferential formation concavity groove 351b of inner ring 351.
The sensor part 360 of belt sensor rolling bearing 350 is by being constituted by the magnet 364 of magnetic detection unit, liner 365, circuit substrate 366, sensor positioning element 367 as the sensor wrap 361 of assembly, the magnet frame 362 as assembly, magnetic induction sensor 363, conduct.
Sensor wrap 361 is the circular magnetic parts with L word shape.Sensor frame 361 1 ends are pressed into and are fixed on along in the concavity groove 352c that circumferentially is formed on the 352 end 352b aperture surfaces of outer ring.On his end of the L word shape of sensor wrap 361 with circumferential parallel sensor installation positioning element 367.Sensor positioning element 367 is connected with circuit substrate 366 on the inner side surface that is configured in the L word shape by liner 365 equally.Connect elastic cable paper 368 on the circuit substrate 366 to the output of outside output magnetic induction sensor 363.
And magnet frame 362 is to be flexed into the front end circular magnetic part relative with sensor wrap 361 front ends.In the present embodiment, an end 362a riveted fixing of magnet frame 362 along the outer diametric plane of inner ring 351 in circumferencial direction forms concavity groove 351b.The caulking part figure place is set nZ ± X (X is more than or equal to 2) that pre-vibration proof produces for.In addition, magnet frame 362 prolongs to outer ring 352 from inner ring 351, stops up bearing space, also has the function as the cover portion that covers bearing space.
The magnetic induction sensor 333 and the magnet 334 of the structure of magnetic induction sensor 363 and magnet 364 and the 8th mode of execution are equal to.
In the belt sensor rolling bearing 350 of the 9th mode of execution, keep the sensor wrap 361 of magnetic induction sensor 363 to be pressed into the end that is fixed on inner ring 351.And then keep the magnet frame 362 of magnet to be fixed by 362a many places, an end are riveted in the mounting groove 351b that forms on the outer diametric plane of inner ring 351.Therefore, the many rank portions of size deviation can be set and magnetic induction sensor 363 and magnet 334 are configured in accurate position.
In addition, so be that raw-material sensor wrap 361 and magnet frame 362 is because the variable effect magnetic induction sensor 363 and the magnet 364 of external magnetic field needn't be worried in covering outer magnetic field with magnetic material.Like this, can not be subjected to the influence that the external magnetic field changes and measuring accurately.
Magnet 364 is positioned at the outside diameter of magnetic induction sensor 363, and the outside diameter of magnet 364 is by magnet frame 362 supportings.The structure that the strong centrifugal force that produces when therefore, formation can prevent a spool high speed rotating causes magnet 364 to damage.
In addition, the caulking part figure place is owing to being set at nZ ± X (X is more than or equal to 2), so can suppress because riveted joint causes distortion and a production nZ and nZ ± 1 fluctuating on the bearing track face.Therefore, can provide the high-precision belt sensor rolling bearing 350 that does not produce unusual sound or vibration.
In addition, the bearing that the belt sensor rolling bearing 310 of present embodiment can be used as axles such as automobile, rail truck, system iron equipment, work mechanism uses, and detects the rotational speed of the axle of each device.
In addition, though sensor wrap 361 and magnet frame 362 respectively riveted fixing on inner ring 351 and outer ring 352, also can obtain same effect.
The tenth mode of execution
Figure 20 represents the belt sensor rolling bearing of tenth embodiment of the invention.It is identical with the 5th mode of execution shown in Figure 9 that the basic structure of the rolling bearing 501 of the belt sensor rolling bearing 500 of Figure 20 is removed the position that will describe in detail, gives same-sign and omit explanation.
With reference to Figure 20, retainer 14 is plastic crown parts, the shield plate 15 of closing the chimeric ring-type of promptly relative with the ring portion 14a side of side telescoping groove 13a fixing and outer ring 13 of this crown retainer 14.Shield plate 15 and inner ring 12 non-contacts.
The magnet assembly is that metal-cored 124 outer periphery portions form the cylindrical part 517 to the axial warpage formation of bearing, and the outer circumferential face 518 of this cylindrical part 517 is relative with the inner peripheral surface end 13c of outer ring 13 with minimum gap.The configuration flat multi-pole magnet of annulus (multi-pole magnet) 523, contact with inner peripheral surface 522 with metal-cored 124 side 521, multi-pole magnet 523 is situated between with the part that these sides 521 contact with inner peripheral surface 522 and deposits binder, and multi-pole magnet 523 metal-cored relatively 124 is adhesively fixed strongly.Multi-pole magnet 523 is multipole bonding, in circumferencial direction magnetic pole alternate.
And on the stepped part 524 that the annular slot that the end of outer ring outer circumferential face 13d forms constitutes, the stationary magazine creel portion 526 of the sensor wrap 525 that chimeric fixed magnetic material constitutes, the rank portion 527 that forms on the sensor wrap 525 positions with the contacts side surfaces of outer ring 13.Sensor wrap 525 is provided with the axle upwardly extending cylindric holding part 528 and from this discoideus holding part 529 of bearing, dispose resinous substrate fixed component 530, contact with discoideus holding part 529 with cylindric holding part 528, these contacting parts are situated between and deposit binder, relatively the sensor wrap 525 resinous substrate fixed component 530 that is adhesively fixed.For example use 66 nylon that enter glass fibre, 46 nylon, PPS etc. as the resin that forms this substrate fixed component 530.
The Hall IC 533 of welding can make wire type on the circuit substrate 531, but also can utilize the Hall IC of surface installing type, at this moment, to circuit substrate 531 welding easily, can realize cost degradation.Particularly Hall element is to install above-mentioned such interference when removing with other various electronic units 534 such as resistance, electric capacity on the external circuit substrate 531, but an operation is with regard to all parts of welded and installed when using surface installing type resistance, electric capacity, so can realize cost degradation, thus the time better.
In addition, select as suiting beyond the magnetic induction part Hall IC 533 to use the existing various magnetic detecting elements such as Hall element, MR element or MI element that use any which kind of.
In the said structure, the outer circumferential face 518 of the cylindrical part 517 that metal-cored 124 peripheral end forms is because relative with the inner peripheral surface end 13c of outer ring 13 with minimum gap, thus be configured to stop up bearing space, so make the grease in the bearing space be difficult to the leakage outside.In addition, made metal-cored 124 o'clock with magnetic, outside exist powerful magnetic generating unit like this leakage magnetic flux by rolling element advance to multi-pole magnet 523 or Hall IC 533 can conductively-closed.As a result, do not have the mistake in computation of the velocity pulse of Hall IC 533 misoperations generation, can improve the mensuration precision of pulse.In addition, owing to metal-cored 124 shield members as magnetic flux can be used,, realize cost degradation so do not need to be provided with in addition miscellaneous part.And then, if make sensor wrap 525, then can utilize the outside magnetic flux of sensor wrap 525 shieldings of this magnetic by magnetic.In addition, can prevent that the magnetic flux of multi-pole magnet 523 is to external leaks.
In addition, metal-cored 124 peripheral part forms cylindrical part 517, and the inboard of this cylindrical part 517 forms the structure of configuration multi-pole magnet 523, thus since multi-pole magnet 523 become easily the location when bonding, so be desirable.And then, between seam, fill binder etc., form the structure that multi-pole magnet 523 peripheral parts are supported by this cylindrical part 517, then can prevent the centrifugal damage of multi-pole magnet 523, so desirable more.
In addition, as mentioned above, use the multi-pole magnet 523 of the multipole attached magnetic of planar, with with rolling bearing 501 axially have a relative with gap state, configuration Hall IC 533 magnetic induction parts such as grade, so can make rolling bearing 502 whole axial thickness attenuation, but, especially can be at the part configuration multi-pole magnet 523 of the cover portion that original maintenance rolling bearing 501 inside are set, at least certain face on two planes of multi-pole magnet 523 is configured in the inboard of rolling bearing 501 end faces, can further be shortened so have the rolling bearing 501 whole axial dimensions of sensor unit.
In addition, the shape of retainer 14 makes the axial allocation position location of the bearing of multi-pole magnet 523, but as shown in figure 20, when using crown plastics retainer, the hat of retainer open the side sensors configured time, can reduce axial dimension, thus the time more desirable.
In addition, metal-cored 124 is desirable for carrying out magnetic bridging effect use magnetic as described later, can use iron, martensitic stainless steel, ferritic stainless steel with excellent formability.When using above-mentioned iron, for imitative rust, processing such as preferably carry out zinc-plated, nickel plating, spray paint.
In addition, metal-cored 124 are fixed on the structure on the inner ring 12, except that interior all ends of the telescoping groove 12a chimeric metal-cored 124 that the inner peripheral surface of inner ring 12 as described above is formed, also can be not form telescoping groove 12a on the inner ring 12 and form tabular surface, and on metal-cored 124, form bead with this face crimping, be pressed into this bead etc. structure is installed etc.
The 11 mode of execution
Figure 21 represents the 11 mode of execution of the present invention.In the present embodiment, will be as metal-cored 541 stationary magazine creel portion 542 chimeric being installed on the stepped part 543 that forms on the inner ring inner peripheral surface of inner ring 12 of magnet assembly.In addition, rolling element 11 with figure in the same shield plate 544 of the shield plate that is provided with of left side 15 equally also be arranged on right side among the figure of rolling element 11.In addition, side 532 with respect to the multi-pole magnet of installing on above-mentioned metal-cored 541 523 exists configuration with gap to be welded on by identical with above-mentioned the tenth mode of execution on Hall IC 533 this point on the circuit substrate 531 of sensor wrap 525 supportings, omits so it describes in detail.
In the belt sensor rolling bearing of the 11 mode of execution shown in Figure 21; thereby adopt as mentioned above to be installed on the inner ring inner peripheral surface of inner ring 12 and have the structure of shield plate 15,544 at rolling element about 11 with metal-cored 541; so the existing bearing cap (bearing cage) that uses can use at that; can reliably guarantee the protection of bearing inside, it is outside to prevent that simultaneously inner grease of filling from flowing out.
The 12 mode of execution
Figure 22 represents twelveth embodiment of the invention.In the present embodiment, bearing sealed ring (axle is subjected to け シ one Le) is gone up and is used contact-type rubber seal 546.The structure of other multi-pole magnets and sensor is identical with above-mentioned the 11 mode of execution shown in Figure 21, so its explanation is omitted.
In the belt sensor rolling bearing of the 12 mode of execution shown in Figure 22, identical with the 11 mode of execution shown in Figure 21, the magnet assembly is on the stepped part 543 that forms of the metal-cored 541 inner ring inner peripheral surfaces that are fixed on inner ring 12, so can adopt the sealing configuration identical with existing bearing, adopt to use the existing sealing configuration of the good rubber seal 546 of sealing thus, simultaneously installation rate sensor and outstanding significantly to the bearing sidepiece.
The axial dimension of rolling bearing is compared length than the belt sensor rolling bearing of the tenth mode of execution shown in Figure 20 in the belt sensor rolling bearing of the 11 mode of execution shown in Figure 21 and the 12 mode of execution shown in Figure 22, but can be than existing weak point, particularly the seal ring of rolling bearing itself can use at that, so do not damage the sealing of rolling bearing.
In addition, in the belt sensor rolling bearing of the tenth to the 12 mode of execution, the magnet assembly is metal-cored 124,541 owing to be configured to stop up bearing space, so also can prevent the outflow of grease when this part does not have bearing sealed ring.In addition, drain to the magnetic flux of multi-pole magnet 523 and Hall IC 533 sides via rolling element 11 by these metal-cored 1 24,541 shieldings, so can eliminate the misoperation that velocity pulse detects.
In addition, carry out 124,541 and preferably use magnetic, in fact can use iron, martensitic stainless steel, ferritic stainless steel with excellent formability for carrying out magnetic screening action as above-mentioned.In addition, when using iron, imitative rust is handled to carry out zinc-plated, nickel plating at last, spray paint etc.
In the 11 mode of execution and the 12 mode of execution, illustrated flat multi-pole magnet 523 to be fixed on the example that roulette wheel is inner ring 12 sides.But, when roulette wheel is outer ring 13, utilize metal-cored by the gimmick identical with the respective embodiments described above by multi-pole magnet 523 is installed in the outside 13 sides make the present invention and above-mentioned equally suitable.
Above the present invention is illustrated in detail or with reference to specific implementations, but can carrying out various changes, modification without departing from the spirit and scope of the present invention for a person skilled in the art naturally.
The application at this with reference to the content of following patent:
The Japan of on October 28th, 2002 application specially permit out hope (the special 2002-312772 of hope),
The Japan of on December 13rd, 2002 application specially permit out hope (the special 2002-362635 of hope),
The Japan of on January 7th, 2003 application specially permit out hope (the special 2003-001159 of hope),
The Japan of on January 10th, 2003 application specially permit out hope (the special 2003-004493 of hope),
The Japan of application on August 27th, 2003 speciallys permit out hope (the special 2002-303736 of hope).
Utilize possibility on the industry
According to belt sensor bearing arrangement of the present invention and belt sensor rolling bearing, can obtain miniaturization, The effect of high productivity and cost cutting, and do not need resin to insert the complicated processing such as shaping, and hold Easily and high accuracy to sensor localization, and then effectively make leakage from the outside with a small amount of part count Flux shunt, thus prevent the sensor misoperation that electromagnetic interference such as multimachine etc. cause.
Claims (9)
1. a belt sensor rolling bearing is characterized in that having: inner ring; The outer ring; Rolling element between described inner ring and described outer ring; Described inner ring and described outer ring one go up install by the magnetic detection unit; Install on another of described inner ring and described outer ring with described by the relative magnetic induction sensor of magnetic detection unit,
Described any one by magnetic detection unit and described magnetic induction sensor is fixed on described inner ring or the described outer ring by the assembly that is made of magnetic.
2. belt sensor rolling bearing as claimed in claim 1 is characterized in that, is describedly set for the circular multi-pole magnet of terres rares by the magnetic detection unit.
3. belt sensor rolling bearing as claimed in claim 1 or 2 is characterized in that, in the concavity groove that described assembly riveted fixing is provided with on the outer diametric plane of the outer diametric plane of described inner ring or described outer ring.
4. belt sensor rolling bearing as claimed in claim 3 is characterized in that, described concavity groove is formed on along on the circumference of the outer diametric plane of the outer diametric plane of described inner ring or described outer ring, and described assembly is uniformly-spaced riveted at a plurality of positions along described circumference.
5. belt sensor rolling bearing as claimed in claim 4 is characterized in that, described caulking part figure place is determined according to following formula:
(caulking part figure place)=nZ ± X,
Wherein, n: positive integer
Z: the number of rolling element
X: integer more than or equal to 2.
6. belt sensor rolling bearing as claimed in claim 5 is characterized in that, described caulking part figure place is a prime number.
7. belt sensor rolling bearing as claimed in claim 1 is characterized in that,
Used planar magnet as described by the magnetic detection unit,
The end face of described planar magnet is by multipole attached magnetic and be fixed on the roulette wheel,
Relative with the plane multipole attached magnetic surface of this magnet with gap and magnetic induction sensor is fixed on the fast pulley in the axial existence of bearing.
8. as claim 2 or 7 described belt sensor rolling bearings, it is characterized in that the magnet assembly that described magnet is installed on the roulette wheel extends to the fast pulley side, to stop up the bearing space between roulette wheel and fast pulley.
9. belt sensor rolling bearing as claimed in claim 8 is characterized in that inner ring is a roulette wheel, and described magnet assembly is fixed on the stepped part of inner ring inner peripheral surface.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002312772A JP4269642B2 (en) | 2002-10-28 | 2002-10-28 | Rolling bearing with sensor for motor |
| JP312772/02 | 2002-10-28 | ||
| JP362635/02 | 2002-12-13 | ||
| JP001159/03 | 2003-01-07 | ||
| JP004493/03 | 2003-01-10 | ||
| JP303736/03 | 2003-08-27 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003801022313A Division CN100565210C (en) | 2002-10-28 | 2003-10-24 | Belt sensor bearing arrangement and belt sensor rolling bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101187404A true CN101187404A (en) | 2008-05-28 |
Family
ID=32457573
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101658738A Pending CN101187404A (en) | 2002-10-28 | 2003-10-24 | Bearing device with sensor and rolling bearing with sensor |
| CNB2003801022313A Expired - Fee Related CN100565210C (en) | 2002-10-28 | 2003-10-24 | Belt sensor bearing arrangement and belt sensor rolling bearing |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003801022313A Expired - Fee Related CN100565210C (en) | 2002-10-28 | 2003-10-24 | Belt sensor bearing arrangement and belt sensor rolling bearing |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4269642B2 (en) |
| CN (2) | CN101187404A (en) |
Cited By (5)
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| CN103080698A (en) * | 2010-09-03 | 2013-05-01 | Ntn株式会社 | Bearing with rotation sensor |
| CN104736869A (en) * | 2013-05-20 | 2015-06-24 | 日本精工株式会社 | Sensor-equipped rolling bearing, motor, and actuator |
| CN105806621A (en) * | 2016-05-10 | 2016-07-27 | 中国科学院长春光学精密机械与物理研究所 | Intelligent bearing based on Hall displacement sensor |
| CN110736485A (en) * | 2018-07-18 | 2020-01-31 | 多摩川精机株式会社 | Magnetic encoder and method of mounting the same |
| CN115383520A (en) * | 2022-08-30 | 2022-11-25 | 山东大学 | Device and method for processing micro texture on inner wall of rolling bearing raceway |
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| JP4517936B2 (en) * | 2005-05-24 | 2010-08-04 | 日本精工株式会社 | Wheel support bearing unit |
| DE102008062337A1 (en) * | 2008-01-02 | 2009-07-09 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Sensor housing fastening device for hydraulic system of motor vehicle, has attachment part and locking part for creating fixed connection recognizable during unauthorized loosening between sensor housing and cylinder housing |
| JP5349157B2 (en) * | 2009-06-19 | 2013-11-20 | Ｎｔｎ株式会社 | Rotation detection device and bearing with rotation detection device |
| IT1396763B1 (en) * | 2009-10-21 | 2012-12-14 | Skf Ab | SENSOR HOLDER COVER FOR A VOLVENT BEARING |
| JP5362621B2 (en) * | 2010-03-02 | 2013-12-11 | 日立オートモティブシステムズ株式会社 | Starter |
| JP5709481B2 (en) * | 2010-11-22 | 2015-04-30 | 日本電産サンキョー株式会社 | motor |
| JP2012220192A (en) * | 2011-04-04 | 2012-11-12 | Ntn Corp | Roller bearing device having rotation detection function |
| JP2015094454A (en) * | 2013-11-14 | 2015-05-18 | Ntn株式会社 | Rolling bearing with rotation sensor |
| EP2918845B2 (en) * | 2014-03-11 | 2022-01-12 | Skf Magnetic Mechatronics | Rotary machine and method for manufacturing a rotary machine |
| DE102015208838B4 (en) * | 2015-05-13 | 2020-07-09 | Schaeffler Technologies AG & Co. KG | Rolling arrangement |
| JP6786373B2 (en) * | 2016-12-14 | 2020-11-18 | Ntn株式会社 | Rolling bearing with rotation sensor |
| DE102017103414B3 (en) * | 2017-02-20 | 2018-02-15 | Schaeffler Technologies AG & Co. KG | Resolverlageranordnung |
| FR3087273B1 (en) * | 2018-10-15 | 2020-11-06 | Schneider Electric Ind Sas | MEASURING DEVICE AND ELECTRICAL SWITCHING DEVICE |
| DE102019125801A1 (en) * | 2019-09-25 | 2021-03-25 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Rolling bearing with sensor and drive unit |
| DE102021105566A1 (en) * | 2020-03-24 | 2021-09-30 | Honeywell International Inc. | ROTARY ENCODER |
-
2002
- 2002-10-28 JP JP2002312772A patent/JP4269642B2/en not_active Expired - Fee Related
-
2003
- 2003-10-24 CN CNA2007101658738A patent/CN101187404A/en active Pending
- 2003-10-24 CN CNB2003801022313A patent/CN100565210C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103080698A (en) * | 2010-09-03 | 2013-05-01 | Ntn株式会社 | Bearing with rotation sensor |
| CN103080698B (en) * | 2010-09-03 | 2015-11-25 | Ntn株式会社 | With the bearing of rotation sensor |
| CN104736869A (en) * | 2013-05-20 | 2015-06-24 | 日本精工株式会社 | Sensor-equipped rolling bearing, motor, and actuator |
| CN105806621A (en) * | 2016-05-10 | 2016-07-27 | 中国科学院长春光学精密机械与物理研究所 | Intelligent bearing based on Hall displacement sensor |
| CN110736485A (en) * | 2018-07-18 | 2020-01-31 | 多摩川精机株式会社 | Magnetic encoder and method of mounting the same |
| CN115383520A (en) * | 2022-08-30 | 2022-11-25 | 山东大学 | Device and method for processing micro texture on inner wall of rolling bearing raceway |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004144270A (en) | 2004-05-20 |
| CN1708692A (en) | 2005-12-14 |
| JP4269642B2 (en) | 2009-05-27 |
| CN100565210C (en) | 2009-12-02 |
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Open date: 20080528 |