CN1576860A - Insulating property test machine for insulation bearing - Google Patents
Insulating property test machine for insulation bearing Download PDFInfo
- Publication number
- CN1576860A CN1576860A CN 03156134 CN03156134A CN1576860A CN 1576860 A CN1576860 A CN 1576860A CN 03156134 CN03156134 CN 03156134 CN 03156134 A CN03156134 A CN 03156134A CN 1576860 A CN1576860 A CN 1576860A
- Authority
- CN
- China
- Prior art keywords
- insulation
- bearing
- insulation bearing
- guard shield
- axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Rolling Contact Bearings (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
This testing machine comprises a common shaft for interfitting inner rings of a plurality of insulated bearings, a plurality of respective housings for interfitting respectively outer rings of each insulated bearing, and a common base for installing thereon the respective housings. Insulators are interposed between each of the respective housings and the base. In the testing machine, insulation resistance measuring means are provided respectively to each insulated bearing, and the insulation resistance between a part on the furthermore inner diameter side than the insulation part on the insulated bearings and the respective housings corresponding to the insulated bearings is measured.
Description
Technical field
The present invention relates to be used for the property test machine for insulation of insulation bearing of the main motor etc. of rail truck.
Background technology
In rail truck, in each position such as the main motor of chassis, drive unit, axletree, use bearing.In recent years,, in above-mentioned main motor, also adopt VVVF (transformation-variable frequency control method), produce galvanic corrosion often at the bearing that is used for main motor thus along with the progress of railway technology.If produce galvanic corrosion in bearing, then the bearing operation face sustains damage, and produces abnormal sound, and then produces and peel off, and in order to prevent these phenomenons, needs the bearing of insulativity.In order to satisfy such demand, developing the pottery that in rotor, uses as insulator, on the outer diametric plane of outer ring, form the insulation bearing of the dielectric film of pottery and PPS resin formation.
Figure 14 represents the structure skeleton diagram of the common chassis of rail truck.The driving that is arranged at the main motor 42 on the chassis 41 is delivered to axletree 45 from its motor shaft 43 through drive unit 44.The two end supports of axletree 45 is on axle bearing 46.Like this, in chassis 41, the bearing in the main motor 42, the bearing and the axle bearing 46 of drive unit 44 are arranged, but the bearing in the main motor 42 uses insulation bearing.
Figure 15 represents the cut-open view of main motor 42.One end of motor shaft 43 is supported on an end of motor shroud 48 by the 1st insulation bearing 46, and the other end of motor shaft 43 is supported on the other end of motor shroud 48 by the 2nd insulation bearing 47.Pars intermedia at motor shaft 43 is provided with rotor 49, and the stator 50 that will comprise stator coil etc. at the outside diameter of this rotor 49 is arranged in the motor shroud 48.The 1st insulation bearing 46 is made of ball bearing, and the 2nd insulation bearing 47 uses cylindrical bearings, so that allow that the heat of motor shaft 43 grades is flexible.Its outer ring of these insulation bearings 46,47 is arranged on cutting apart in the sheath portion 51,52 of motor shroud 48 two ends.In wide face portion, the cover 53～56 with cup grease container 67 is installed respectively in the face of above-mentioned each insulation bearing 46,47 both sides in the motor shroud 48.Cup grease container 67 is provided for increasing the lubricating life or the cup grease supply interval of insulation bearing 46,47.
When estimating the insulating property of such insulation bearing (for example forming the insulation bearing of dielectric film on the outer diametric plane in the outer ring), as shown in figure 16 in the past, insulation bearing 61 is packed in two outer covers that separate 63 by the monomer mode, make two electrode 64a of insulation resistance tester 64, the base material of 64b contact outer cover 63 and bearing outer ring 62 is measured the insulation resistance between outer cover 63 and the outer ring base material.
But the load of insulation bearing 46,47 load of the both sides of using in pairs in motor shaft 43 grades is different mutually.Therefore, in the mensuration of monomer bearing as described above, can not investigate the variation of the insulating property of the reality corresponding with the duration of runs.
And, in the insulation bearing that in the main motor of rail truck, uses etc., under the state of main motor of packing into, enclose cup grease, as shown in figure 15, the parts such as periphery such as cover 53～56 grades with cup grease container 67 are installed in insulation bearing 46,47.Therefore, become and measure the different situation of insulation resistance situation in monomer bearing mode as described above.In addition, also have rotation to drive the situation that cup grease is moved, discharges because of main motor.Cup grease is not an insulator completely, because of cup grease moves the leakage that causes insulativity is descended sometimes.Therefore, when measuring in monomer bearing mode, the test findings of insulating property is different.But, the insulating property under the state of suitable real machine so unconfirmed in the past.
Have again, in main motor shown in Figure 15 42 real machines such as grade, can measure the insulating property between motor shroud 48 and the motor shaft 43.But, in this case, become mensuration with the insulating property under the state of insulation bearing 46,47 combinations at two ends, do not carry out mensuration for each insulation bearing 46,47.Therefore, which kind of method all can not estimate the insulating property of each insulation bearing 46,47 under real machine or the suitable real machine state with.
Improve from the performance of rail truck main motor etc. and to require, seek the insulating property evaluation of each insulation bearing 46,47 under so suitable real machine state.
Summary of the invention
The object of the present invention is to provide a kind of property test machine for insulation of insulation bearing, can estimate the insulating property of each insulation bearing under approximate real machine user mode.
The property test machine for insulation of insulation bearing of the present invention comprises: the chimeric common axis of inner ring that makes a plurality of insulation bearings; Make the chimeric respectively a plurality of discrete guard shield in outer ring of each insulation bearing; The common bed of these discrete guard shields is set; Be inserted in the insulator between described discrete guard shield and the pedestal; And a plurality of determination of insulation resistance parts, be provided with respectively with respect to described each insulation bearing, measure the part of the internal side diameter compare with the insulated part in this insulation bearing and corresponding to the insulation resistance between the discrete guard shield of this insulation bearing.
According to this structure, make a pair of insulation bearing be entrenched in the common axis and measure insulation resistance, so can estimate the insulating property of the insulation bearing under the state that the axle two ends in the real machine are used.For example, make the axle rotation, can investigate the variation of the insulating property of the suitable real machine corresponding with the real machine that turns round.And, for each insulation bearing discrete guard shield is set, between discrete guard shield and common bed, insert insulator, so can measure the insulation resistance of each insulation bearing.Like this, for example can before the real machine experiment, estimate the insulating property of the bearing user mode in the Bearing Installation real machines such as main motor that are enclosed in rail truck.
In the present invention, described insulation bearing also can be the insulation bearing that has on the outer diametric plane of the base material of outer ring and width face as the insulation covering of described insulated part, compare with the insulated part of the described insulation bearing that makes the conducting of described determination of insulation resistance parts, the part of internal side diameter is the base material part of the outer ring of described insulation bearing.
Under the situation of this structure, inserting this insulation in the outer ring of insulation bearing covers, measure between the base material of chimeric discrete guard shield and bearing outer ring by the determination of insulation resistance parts, so can estimate the insulating property that insulation covers, and not be subjected to the influence of rotor between Internal and external cycle and cup grease etc.
In the present invention, described insulation bearing also can be the insulation bearing that has on the outer diametric plane of the base material of outer ring and width face as the insulation covering of described insulated part, compare with the insulated part of the described insulation bearing that makes the conducting of described determination of insulation resistance parts, the part of internal side diameter is the inner ring or the described axle of described insulation bearing.
Under the situation of this structure, estimate the insulating property of the influence comprise the rotor that is inserted between Internal and external cycle and cup grease.
In the present invention, described insulation bearing also can have the rotor of ceramic, this rotor is the rotor of described insulator part, and the part of comparing internal side diameter with the insulated part of the described insulation bearing that makes the conducting of described determination of insulation resistance parts is the inner ring or the described axle of described insulation bearing.
Under the situation of this structure, have the rotor of ceramic by insulation bearing, even given the insulation bearing of insulating property, also can estimate insulating property.
In these inventions, the bearing periphery of the Bearing Installation real machine of described a plurality of insulation bearings also can analog ligand be arranged, the cover that covers the width face of described insulation bearing is installed on the described discrete guard shield.
Under the situation of this structure, can comprise the insulating property evaluation of the cover influence of the width face that covers the insulation bearing in the real machine, can carry out the evaluation of more using near real machine.
Under the situation that cover is set as described above, also can the cup grease container be set on the bearing opposite of this cover.
Under the situation of this structure, can estimate the insulating property under the state of in the cup grease container on the bearing opposite of the cover that is arranged at real machine, having filled cup grease.As described above, cup grease is not an insulator completely, because of cup grease moves the leakage of generation, insulativity is descended.Therefore, carry out the evaluation of the insulating property under the more approximate Bearing Installation real machine state.
In these inventions, the insulator that is inserted between described each discrete guard shield and the pedestal also can be an insulating trip.
Inserting under the situation of insulator, make discrete guard shield and pedestal how be combined into problem, and by using the insulating trip of thin parts, can be simply and combination securely with discrete guard shield and pedestal.And, on which position, how to insert insulator and be the principal element of insulating property in estimating, and, can be configured easily by using insulating trip, so that the insulation position becomes narrow space, can reduce the noise that produces because of insulation division bit wide etc.
In the present invention, the rotary driving part that makes the common axis rotation can be set also, and under the state of described common axis rotation, make radial load act on the load load component of described common axis.
In this case, can simulate the radial load that acts on axle in the real machine, estimate the insulating property of carrying out under the bearing operation state, carry out the insulating property evaluation of more approximate real machine state.
In these inventions, the chimeric respectively discrete guard shield in the outer ring that makes each insulation bearing also can be set and be inserted in two insulators between the discrete guard shield, replace described a plurality of discrete guard shield, described common bed, be inserted in the structure of the insulator between described each discrete guard shield and the pedestal.
That is, the property test machine for insulation of the insulation bearing of this viewpoint comprises: the chimeric common axis of inner ring that makes a plurality of insulation bearings; Make the chimeric respectively a plurality of discrete guard shield in outer ring of each insulation bearing; Be inserted in two insulators between the discrete guard shield; And a plurality of determination of insulation resistance parts, be provided with respectively with respect to described each insulation bearing, measure the part of the internal side diameter compare with the insulated part in this insulation bearing and corresponding to the insulation resistance between the discrete guard shield of this insulation bearing.
Under the situation of this structure, can omit shared outer cover, the outer cover one-piece construction of two discrete guard shields, even or shared outer cover is set, also can make the insulator between the discrete guard shield that is arranged on both sides is one.Therefore, the structure of testing machine becomes simple.
Description of drawings
Fig. 1 is the biopsy cavity marker devices front view of property test machine for insulation of the insulation bearing of the present invention's the 1st embodiment.
Fig. 2 is the local amplification view of this testing machine.
Fig. 3 is the side view of the cover of this testing machine.
Fig. 4 is another local amplification view of this testing machine.
Fig. 5 is the local amplification view of property test machine for insulation of the insulation bearing of another embodiment of the present invention.
Fig. 6 is another local amplification view of this testing machine.
Fig. 7 is the cut-open view of schematic configuration of property test machine for insulation of the insulation bearing of expression the present invention another embodiment.
Fig. 8 is the cut-open view of property test machine for insulation of the insulation bearing of expression another embodiment of the present invention.
Assembling in concrete example when Fig. 9 (A) is to use the bearing rotary test rig to carry out temperature measuring the front view of a part of having dissectd axle of inner ring temperature measuring apparatus of rolling bearing, Fig. 9 (B) is the side view that dissects this a part, and Fig. 9 (C) is the partial enlarged drawing of Fig. 9 (B).
Figure 10 is with the elastic body of this inner ring temperature measuring apparatus partial enlarged drawing as the example of coil spring.
Figure 11 is the general profile chart of the bearing rotary test rig of this inner ring temperature measuring apparatus of assembling.
Assembling in another concrete example when Figure 12 (A) is to use the bearing rotary test rig to carry out temperature measuring the front view of a part of having dissectd axle of inner ring temperature measuring apparatus of rolling bearing, Figure 12 (B) is this side view, and Figure 12 (C) is the elastic body of expression in this inner ring temperature measuring apparatus and the stereographic map of the structure of temperature sensor.
Assembling in another concrete example when Figure 13 is to use the bearing rotary test rig to carry out temperature measuring the front view of a part of having dissectd axle of inner ring temperature measuring apparatus of rolling bearing.
Figure 14 is the general principal view of rail truck chassis that has assembled the main motor of Bearing Installation real machine.
Figure 15 is the amplification view of this main motor.
Figure 16 is the key diagram of conventional example.
Embodiment
With Fig. 1 to Fig. 4 the 1st embodiment of the present invention is described.The property test machine for insulation of the insulation bearing of this embodiment is a testing machine of estimating the insulating property of the insulation bearing 46,47 at the two ends of assembling in the main motor 42 of above-mentioned rail truck with Figure 15.This property test machine for insulation comprises: the chimeric common axis 3 of inner ring 57,58 that makes described a plurality of insulation bearing 46,47; Make the outer ring 59,60 of each insulation bearing 46,47 be entrenched in inner a plurality of discrete guard shield 11,12 respectively; The common bed 4 of these discrete guard shields 11,12 is set; And corresponding to a plurality of determination of insulation resistance parts 1,2 of each insulation bearing 46,47.
In the periphery of each insulation bearing 46,47 of discrete guard shield 11,12, the cover 13～16 of the two width faces that cover these insulation bearings 46,47 is installed.These covers 13～16 are provided with cup grease container 13a～16a on the bearing opposed faces.The pairing cover 13,14 of width face of the both sides of an insulation bearing 46 is installed on the discrete guard shield 11, and the pairing cover 15,16 of both sides width face of another insulation bearing 47 is installed on the discrete guard shield 12.The cover 13,14 of insulation bearing 46 correspondences is entrenched on the axle 3, forms labyrinth packing 19,20 respectively between the inner ring 57 with insulation bearing 46 is positioned at pair of bearings pressing component 17,18 on the direction of principal axis.In addition, corresponding to the cover 15,16 of insulation bearing 47 be entrenched on the axle 3, and between the pair of bearings pressing component 21,22 of the interior wheel 58 of direction of principal axis location insulation bearing 47, form labyrinth 23,24 respectively.Above-mentioned each cover 13～16th, the parts of the cover 53～56 of the main motor 42 of simulation Figure 15, the cover 53～56 of the interval of each cover 13～16 and the insulation bearing 46,47 corresponding with it and shape, size and the main motor 42 of cup grease container 13a～16a similarly forms.
Above-mentioned each insulation bearing 46,47 has insulated part 59a on the outer diametric plane of outer ring 59,60 and width face, the insulation of 60a covers.The determination of insulation resistance parts 1 of insulation bearing 46 correspondences are measured the part of inner ring 57 sides of comparing with insulated part (insulation covers) 59a of insulation bearing 46 and the insulation resistance between the discrete guard shield 11.Specifically, an electrode 1a of above-mentioned determination of insulation resistance parts 1 is electrically connected with discrete guard shield 11, another electrode 1b is electrically connected with the base material part 59b of the outer ring 59 of insulation bearing 46.An above-mentioned electrode 1a for example also can and be provided with hole 71 (Fig. 2) and is connected to discrete guard shield 11 through above-mentioned axle sleeve 7 and insulator 8.The axle sleeve 25 that constitutes by insulating element is entrenched in the cover 14 among the through hole 14b that connects towards direction of principal axis, faces the aperture surface of above-mentioned outer ring 59, another electrode 1b contact outer ring base material part 59b of determination of insulation resistance parts 1 through this axle sleeve 25.Electrode 1b is made of spring members, by its elastic deformation, pushes outer ring base material part 59b.The cup grease container 14a of cover 14 shown in Fig. 3 front view like that on peripheral direction configured separate a plurality of, and at adjacent cup grease container 14a, the through hole 14b of above-mentioned axle sleeve 25 is set, not flow out cup grease in the part between the 14a from cup grease container 14a.
The determination of insulation resistance parts 2 of another insulation bearing 47 correspondences are measured the part of inner ring 58 sides of comparing with insulated part (insulation covers) 60a of insulation bearing 47 and the insulation resistance between the discrete guard shield 12.In this case, an electrode 2a of determination of insulation resistance parts 2 is electrically connected with discrete guard shield 12, another electrode 2b is electrically connected with the base material part 60b of the outer ring 60 of insulation bearing 47.The axle sleeve 26 that constitutes by insulating element is entrenched in the cover 16 among the through hole 16b that connects towards direction of principal axis, face the aperture surface of above-mentioned outer ring 60 in this axle sleeve 26, the situation of another electrode 2b contact outer ring base material part 60b of determination of insulation resistance parts 2 is identical with the situation of the determination of insulation resistance parts 1 of front.An above-mentioned electrode 2a also can and be provided with hole 72 (Fig. 4) and is connected to discrete guard shield 12 through axle sleeve 7 and insulator 9.
Have, as required, insulated part (insulation cover) 59a of discrete guard shield 11,12 and insulation bearing 47,48 is also passed through in above-mentioned hole 71,72 again, and 60a and connecting also can be with above-mentioned another electrode 1a, and 2a is 71,72 base materials that are connected to outer ring 59,60 from the hole.Be not used in slotting electrify electrode 1a, 2a or electrode 1b during 2b, also can not form above-mentioned hole 71,72.
In addition, in this property test machine for insulation, the load component 27 to its 3 loading radial load is set.The load of the load of 27 pairs of axles 3 of this load load component is the loads of simulating the deadweight of the rotor 49 in the main motor 42 of Figure 15 that the bearing rotary test rig is provided influence.This load load component 27 constitutes by rotating freely the drive sources such as oil pressure cylinder 32 that connect moving rods 31 by connector 30 on the ring body 29 of setting and this ring body 29 by bearing 28 on the described axle 3.Drive source 32 is fixed on the support 5 of pedestal 4, and is mobile by its moving rod 31 is retreated, to axle 3 imposed loads.Connector 30 is to connect with it to remove parts freely, in this connector 30, packs into and measures the load components of assays (not shown) such as loading unit of the load that loads on axle 3.
One end of axle 3 is connected to the rotating driveshaft 35 of the rotary driving source 34 of motor formation by connector 33.Connector 33 can carry out freely connecting and combination.
Below, the dielectric test of insulation bearing 46,47 of the property test machine for insulation of said structure is described.Rotating driveshaft 35 at the rotary driving source of rotary load being used with connector 33 34 is connected to axle 3, is applied by load load component 27 under the state of radial load, make axle 3 rotations by rotary driving source 34 after, carry out this test.Because this rotation drives, produce the heating of the mobile and bearing 46,47 of the cup grease that is enclosed in the bearing 46,47, become the state that is similar to when using.When measuring, connector 30,33 is separated, the moving rod 31 of load load component 27 and rotating driveshaft 35 electricity from axle 3 of rotary driving source 34 are isolated.Under this state,, measure the insulating property of the 2nd insulation bearing 47 by determination of insulation resistance parts 2 by the insulating property of determination of insulation resistance parts 1 mensuration the 1st insulation bearing 46.In this case, determination of insulation resistance parts 1 are measured the base material part 59b of the outer ring 59 in the 1st insulation bearing 46 and corresponding to the insulation resistance between the discrete guard shield 11 of this insulation bearing 46.And determination of insulation resistance parts 2 are measured the base material part 60b of the outer ring 60 in the 2nd insulation bearing 47 and corresponding to the insulation resistance between the discrete guard shield 12 of this insulation bearing 47.
Like this, utilize the property test machine for insulation of this structure,, can simulate user mode and estimate insulating property, and carry out the evaluation of the insulating property of each insulation bearing 46,47 for the insulation bearing 46,47 in the main motor 42 of the rail truck of packing into.Particularly simulate the bearing peripheral part of the main motor 42 of Bearing Installation real machine, the cover 13～16 that will cover the width face of insulation bearing 46,47 is installed on the discrete guard shield 11,12, so can estimate insulating property under the state that approximate real machine uses.And, on the bearing opposite of cover 13～16 cup grease container 13a～16a is set, so can under the equipment state of more approximate Bearing Installation real machine, estimate insulating property.
When the insulation of carrying out between discrete guard shield 11,12 and the pedestal 4, with the insulator 8 of insulating trip formation, 9 are inserted in any part, are the key factors on insulating property are estimated, and as present embodiment, by making the insulation position is that narrow space is configured, and can reduce the interference that noise produces.
In addition, discrete guard shield 11,12, cover 13～16, as be ready to various sizes corresponding to the size of insulation bearing 46,47, the mensuration of the insulating property of axle 46,47 is held in the insulation that then can carry out various sizes.
Have again, in the above-described embodiment, with an electrode 1b of determination of insulation resistance parts 1,2, the base material part 59b of 2b and outer ring 59,60,60b is electrically connected, but also can be shown in 1 pecked line among Fig. 2 and Fig. 4 like that, be substituted by with the axle 3 or the inner ring 57,58 of bearing 46,47 and be electrically connected.In this case, in insulation bearing 46, can measure the insulation resistance between discrete guard shield 11 and axle 3 or the inner ring 57.And in insulation bearing 47, can measure the insulation resistance between discrete guard shield 12 and axle 3 or the inner ring 58.
In the above-described embodiment, the insulating property of each insulation bearing 46,47 are measured in the rotation that can stop axle 3, Yi Bian also can make axle 3 rotations measure insulating property by rotary driving source 34 on one side.In this case, need in connector 30,33, insert insulator, make axle 3 and pedestal 4 insulation.Like this, Yi Bian when one side turning axle 3 is measured insulating property, under the cup grease that rotation causes moves influence with bearing heating, also can estimate insulating property along with how the elapsed time changes.Because cup grease is not insulator completely as mentioned above,, can carry out correct insulating property evaluation by the influence of simulation cup grease so measure by the insulation in being rotated.
Fig. 5 and Fig. 6 represent another embodiment of the present invention.This embodiment is in the property test machine for insulation of the 1st embodiment of Fig. 1～shown in Figure 4, and as the rotor 65,66 that the insulation bearing 46,47 of insulation object has ceramic, this rotor 65,66 becomes the insulated part of insulation bearing 46,47.The part of the inner ring of one electrode 1b being compared with the rotor 65 of above-mentioned insulated part corresponding to the determination of insulation resistance parts 1 of insulation bearing 46 57, be specially axle 3 or inner ring 57 is electrically connected.And the part of the inner ring of also one electrode 2b being compared with the rotor 66 of above-mentioned insulated part corresponding to the determination of insulation resistance parts 2 of insulation bearing 47 58, be specially axle 3 or inner ring 58 is electrically connected.Other structure is identical with the situation of the 1st embodiment.
Under the situation of the property test machine for insulation of this embodiment,, also can estimate the insulating property under the user mode for the insulation bearing 46,47 in the main motor 42 of the rail truck of packing into.
Fig. 7 represents the schematic configuration of another embodiment of the present invention.This embodiment is in the 1st embodiment, has omitted the axle sleeve 7 of pedestal 4.Cover 13～16 in the 1st embodiment, rotary driving source 34, load load component 27 have omitted diagram, but cover 13～16 can similarly be provided with the 1st embodiment in the present embodiment, also can omit.The outer ring 59 of the 1st insulation bearing 46 is supported on by discrete guard shield 11 on the cylinder 6 that constitutes pedestal 4, carries out electricity with insulator 8 between cylinder 6 and the discrete guard shield 11 and isolates.The outer ring 60 of the 2nd insulation bearing 47 is supported on by discrete guard shield 12 on another cylinder 6 that constitutes pedestal 4, carries out electricity with insulator 9 between cylinder 6 and the discrete guard shield 12 and isolates.Measure the insulation resistance between the outer ring base material part 59b of discrete guard shield 11 and insulation bearing 46 corresponding to the determination of insulation resistance parts 1 of insulation bearing 46.Measure the insulation resistance between the outer ring base material part 60b of discrete guard shields 12 and insulation bearing 47 corresponding to the determination of insulation resistance parts 2 of insulation bearing 46.Other structure is identical with the 1st embodiment.
Fig. 8 represents another embodiment of the present invention.In this embodiment, also omit the axle sleeve 7 of the pedestal 4 in the 1st embodiment.In the present embodiment, with the discrete guard shield 11A of the outer ring of each insulation bearing 46,47 of chimeric subjects respectively, 12A column ground is provided with, at these discrete guard shield 11A, insert the insulator 8,9 that insulating trip constitutes between the upper surface of the support 5 of the lower surface of 12B and pedestal 4.Discrete guard shield 11A, 12B become on the discrete guard shield body of column and bearing gomphosis part 11Aa have been installed, the discrete guard shield of 12Aa.Cover 13～16 in the 1st embodiment has omitted diagram, in the present embodiment can be same with the 1st embodiment, also can omit.Axle 3 is rotated the rotary driving source 34 of driving and load load component 27 and the 1st embodiment similarly is provided with, and be provided with on the end of side, also connect another load load component 27A at the insulation bearing 47 of axle 3.Load component 27,27A are identical structure.Other structure is identical with the situation of the 1st embodiment.Measure the insulation resistance between the outer ring base material part 59b of discrete guard shield 11 and insulation bearing 46 corresponding to the determination of insulation resistance parts 1 of insulation bearing 46.Measure the insulation resistance between the outer ring base material part 60b of discrete guard shields 12 and insulation bearing 47 corresponding to the determination of insulation resistance parts 2 of insulation bearing 46.
Have again, in the above-described embodiment, show corresponding to each insulation bearing 46,47 discrete guard shield 11,12 and pedestal 4 between insert insulator 8,9 structure, but the insulator that also can be provided with between the discrete guard shield that is inserted in the outer ring of chimeric each insulation bearing respectively and two the discrete guard shields replaces.For example, in the 1st embodiment shown in Figure 1, also can omit a certain side's discrete guard shield 11,12 and the insulator 8,9 between the pedestal 4.In this case, become its discrete guard shield 11,12 that omits side and the situation of pedestal 4, but at the discrete guard shield of this variation middle finger.
Use with being used for above-mentioned insulating property and measure the identical testing machine of Fig. 7, can measure temperature.
With Fig. 9 to Figure 11 its concrete example is described below.The inner ring temperature measuring apparatus of this rolling bearing is furnished with the bearing rotary test rig 130 same with above-mentioned Fig. 7 of expression summary construction diagram among Figure 11, measures the inner ring temperature of rolling bearing.
This bearing rotary test rig 130 is provided with pair of columns 132,132 on support 131, axle 133 the both ends of crossbearer between two cylinders 132,132 are supported on each cylinder 132 by the insulating rolling bearing 120 as subjects with rotating freely.Axle 133 connects the output shaft of motor separably by mandrel connector (not shown), by this motor rotation driving.Insulating rolling bearing 120 for example spreads all over the width face formation insulation covering (not shown) of both sides from the outer peripheral face of its outer ring 122.The outer ring 122 of each bearing 120 is fixed on respectively on the cylinder 132 by the discrete guard shield 134 corresponding to each bearing.By between discrete guard shield 134 and cylinder 132, inserting insulator 135, isolate carrying out electric insulation between cylinder 132 and the discrete guard shield 134.By at above-mentioned each discrete guard shield 134 with connect the electrode of determination of insulation resistance parts 136 between corresponding to the base material of the outer ring 122 of each discrete guard shield, can measure the resistance value between the base material of discrete guard shield 134 and outer ring 122.
This inner ring temperature measuring apparatus is provided with the temperature sensor 101 that thermopair constitutes in the axle 133 of the inner ring 121 of the above-mentioned rolling bearing 120 of chimeric rotation shown in Fig. 9 (A), Fig. 9 (B).Its two metal line that constitutes the thermopair of temperature sensor 101 is screwed in together and with front end welds, and making the front end face of weld is the plane.These temperature sensor 101 following configurations: energize outstanding by the elastic body 103 that is arranged in the above-mentioned axle 133, from the outstanding ormal weight of the outer diametric plane of axle 133, and contact inner ring 121 when on direction of principal axis, making bearing inner race 121 be entrenched in the above-mentioned axle 133, diametric plane sinks to outside axle 133, flexibly pushes the aperture surface of inner ring 121.The part of enlarged drawing 9 (B) also is shown in Fig. 9 (C).Above-mentioned elastic body 103 is macromolecule bodies such as rubber or resin, is gone up the installation of setting with among the recess 133a by chimeric axle 133 surfaces that are arranged on.Temperature sensor 101 is inserted and is led in the hole 103a that connects elastic body 103, the front end weld part 101a of temperature sensor 101 is outstanding to the inner ring 121 of elastic body 103 from the surface of opposite side, is bonded on the surface of elastic body 103 with cementing agent around the front end weld part 101a.Shown in Fig. 9 (A), the wiring 104 that is connected to temperature sensor 101 is inserted hole 105A in the logical axle center part that is arranged at axle 133, is communicated to the hole 105B of above-mentioned installation with recess 133a from this hole 105A, and derives in an end of axle 133.The derivation end of wiring 104 is connected to the wiring of fixation side (not shown) by the rotary-type connector 147 of allowing in the end that is arranged on axle 133, and is connected to not shown temperature measuring device.Above-mentioned connector 147 uses collector ring (slip ring) etc.As above-mentioned elastic body 103, for example also can use spring coil shown in Figure 10 to replace.
Inner ring temperature measuring apparatus according to said structure, energize outstanding to the temperature sensor 101 that is provided with on the axle 133 by the elastic body 103 that is provided with on the axle 133, from the outstanding ormal weight of the outer diametric plane of axle 133, so when bearing inner race 121 being entrenched on the axle 133 on direction of principal axis, temperature sensor 101 contact inner rings 121, sink to from the outer diametric plane of axle 133, by the elastic recovering force of elastic body 103, the leading section 101a elasticity of temperature sensor 101 is by on the aperture surface that is pressed in inner ring 121.Therefore, in the time of in axle 133 that rolling bearing 120 is packed into, there is not temperature sensor 101 to come off or 104 broken strings that connect up, the rolling bearing 120 of can operation packing into well.And temperature sensor 101 is flexibly pushed the aperture surface of bearing inner race 121, so obtain stable contact, can carry out the high temperature measuring of reliability.
In this concrete example, as above-mentioned elastic body 103, use macromolecule bodies such as rubber or resin, this elastic body 103 is entrenched in the installation that is provided with in the axle 133 uses among the recess 133a, so available simple structure is carried out the setting of the elastic body 103 of axle 133.
And, in this concrete example, in the hole 103a that connects elastic body 103, insert logical temperature sensor 101, the leading section 101a of temperature sensor 101 is outstanding to side surface from the bearing inner race 121 of elastic body 103, so the elasticity of can be more reliably the aperture surface of bearing inner race 121 being carried out temperature sensor 101 is pushed.And, be connected to the wiring 104 slotting outsides of leading among the hole 105B that is provided with in the axle center part of axle 133 and exporting to axle 133 of temperature sensor 101, so can avoid above-mentioned wiring 104 to be subjected to the centrifugal force that axle 133 rotation produces, can reduce the noise that the detection signal to temperature sensor 101 applies.In addition,, also can be used as the guide rod of wiring 104, for example compare, have the advantage of the intensity of guaranteeing axle 133 easily with on the outer diametric plane of axle 133, forming groove even at the diameter of axle 133 hour.
In this concrete example, the part of above-mentioned inner ring temperature measuring apparatus as the bearing rotary test rig constituted, compare with the situation of the inner ring temperature of the bearing that assembles on the direct mensuration Bearing Installation real machine, can easily carry out this mensuration.In the main shaft bearing of rail truck main motor and work mechanism, require to carry out accurately the temperature measuring of the bearing inner race under the operating condition, and in real machine, be difficult to be provided with temperature measurement component, but, can carry out the inner ring temperature measuring simultaneously with various bearing rotation tests by using the inner ring temperature measuring apparatus of said structure.
Have, this inner ring temperature measuring apparatus is not limited to the occasion of bearing rotary test rig again, and a part that also can be used as the Bearing Installation real machine of the motor of the insulation bearing of packing into and work mechanism is provided with.
Figure 12 represents another concrete example.This concrete example is in the inner ring temperature measuring apparatus of concrete example shown in Figure 9, and elastic body 103 as latch plate, is disposed the elastic body 103 that above-mentioned latch plate constitutes in the slot part 133b that is provided with on the surface of axle 133.In the latch plate that constitutes elastic body 103, shown in Figure 12 (C), formation makes temperature sensor 101 insert logical hole 103b and makes the wiring 104 that is connected to temperature sensor 101 insert logical hole 103c, insert the welding leading section 101a that leads to the temperature sensor 101 in the 103b of hole with cementing agent 106 be bonded in this hole 103b around.The cardinal extremity of the elastic body 103 that latch plate constitutes is fixed on welding, crimping or other fixed forms on the bottom surface etc. of slot part 133b of axle 133.Have, Figure 12 (C) expression is crimped on the state of floating before the elastic body 103 with temperature sensor 101 from elastic body 103 again.
Above-mentioned slot part 133b prolongs the end that is formed up to axle 133, and wiring 104 rear side from elastic body 103 reach face side through hole 103c, along the end that exports to axle 133 in the slot part 133b.Other structure is identical with the situation of above-mentioned concrete example.
Under the situation of this concrete example, use latch plate, this elastic body 103 is configured in the slot part 133b that is provided with on the surface of axle 133, so available simple structure is carried out the setting to the elastic body 103 of axle 133 as above-mentioned elastic body 103.Under the situation of this concrete example, the rolling bearing 120 of also can operation packing into well carries out the high temperature measuring of reliability.
Figure 13 represents another concrete example.The inner ring temperature measuring apparatus of this concrete example carries out the temperature measuring of the inner race width face of the rolling bearing 120 that ball bearing constitutes.Adjacent being arranged on axial step surface 133c of external diameter face portion of the axle 133 that the inner ring 121 of rolling bearing 120 is chimeric.Step surface 133c for example is made of the flange surface of the flange shape major diameter part 134 that is provided with on the axle 133.Temperature sensor 101 is energized outstanding by elastic body 103, from the outstanding ormal weight of above-mentioned step surface 133c.These temperature sensor 101 following configurations: when being entrenched in inner ring 121 on the axle 133 on direction of principal axis, the leading section 101a of temperature sensor 101 runs into inner ring 121, sinks to from above-mentioned step surface 133c, flexibly pushes the width face of inner ring 121.Specifically, the leading section 101a of temperature sensor 101 pushes the flange surface of bearing inner race 121.In this case, elastic body 103 is polymer bodies, be arranged in the axle 133 and the installation that is entrenched in step surface 133c split shed with among the recess 133a.
Installation is provided with obliquely with recess 133a, so that the close as far as possible outside diameter that is configured in axle 133 of the openend of step surface 133c side, and another peristome is compared at internal side diameter with flange surface side opening portion.This is because the temperature of the flange part of ball bearing is the highest at outer diameter part, the outside diameter that expectation makes temperature sensor 101 contact inner ring 121 as far as possible improves the mensuration precision, but in the time of near will installing with the configured in one piece of recess 133a outer diameter part in flange shape large-diameter portion 134, compare with recess 133a with this installation, the wall thickness attenuation of outside diameter part, produce strength problem, so will prevent this phenomenon.
Other structures of the item that in this concrete example, specifies, for example in the hole 103a that connects elastic body 103, insert logical temperature sensor 101, the wiring 104 that is connected to temperature sensor 101 is inserted the hole 105B that is provided with in the axle center part of axises 133 and is exported to the end etc. of axle 133, and all the situation with above-mentioned concrete example is identical.
Under the situation of the inner ring temperature measuring apparatus of this concrete example, when packing rolling bearing 120 into, do not have temperature sensor 101 to come off or break, the rolling bearing 120 of can operation packing into well.And temperature sensor 101 is flexibly pushed on the width face (being flange surface here) of bearing inner race 121, so can carry out the high temperature measuring of reliability.
The property test machine for insulation of insulation bearing of the present invention comprises: the chimeric common axis of inner ring that makes a plurality of insulation bearings; Make the chimeric respectively a plurality of discrete guard shield in outer ring of each insulation bearing; The common bed of these discrete guard shields is set; Be inserted in the insulator between described discrete guard shield and the pedestal; And a plurality of determination of insulation resistance parts, be provided with respectively with respect to described each insulation bearing, the part of the internal side diameter that mensuration is compared with the insulated part in this insulation bearing and corresponding to the insulation resistance between the discrete guard shield of this insulation bearing is so can estimate the insulating property of each insulation bearing under the approximate real machine user mode.Particularly, be provided with thereon under the situation of cup grease container, can more be similar to the evaluation of the insulating property under the real machine states such as installment state of lid at the cover that the width face that covers insulation bearing is set.
Claims (9)
1. the property test machine for insulation of an insulation bearing comprises: the chimeric common axis of inner ring that makes a plurality of insulation bearings; Make the chimeric respectively a plurality of discrete guard shield in outer ring of each insulation bearing; The common bed of these discrete guard shields is set; Be inserted in the insulator between described discrete guard shield and the pedestal; And a plurality of determination of insulation resistance parts, be provided with respectively with respect to described each insulation bearing, measure and to compare the part of internal side diameter with the insulated part in this insulation bearing and corresponding to the insulation resistance between the discrete guard shield of this insulation bearing.
2. according to the property test machine for insulation of the insulation bearing of claim 1, wherein, described insulation bearing is the insulation bearing that has on the outer diametric plane of the base material of outer ring and width face as the insulation covering of described insulated part, and the part of comparing internal side diameter with the insulated part of the described insulation bearing that makes the conducting of described determination of insulation resistance parts is the base material part of the outer ring of described insulation bearing.
3. according to the property test machine for insulation of the insulation bearing of claim 1, wherein, described insulation bearing is the insulation bearing that has on the outer diametric plane of the base material of outer ring and width face as the insulation covering of described insulated part, and the part of comparing internal side diameter with the insulated part of the described insulation bearing that makes the conducting of described determination of insulation resistance parts is the inner ring or the described axle of described insulation bearing.
4. according to the property test machine for insulation of the insulation bearing of claim 1, wherein, described insulation bearing has the rotor of ceramic, this rotor is the rotor of described insulator part, and the part of comparing internal side diameter with the insulated part of the described insulation bearing that makes the conducting of described determination of insulation resistance parts is the inner ring or the described axle of described insulation bearing.
5. according to the property test machine for insulation of each described insulation bearing in the claim 1 to 4, wherein, analog ligand has the bearing periphery of the Bearing Installation real machine of described a plurality of insulation bearings, and the cover that covers the width face of described insulation bearing is installed on the described discrete guard shield.
6. according to the property test machine for insulation of the insulation bearing of claim 5, wherein, the cup grease container is set on the bearing opposite of described cover.
7. according to the property test machine for insulation of each described insulation bearing in the claim 1 to 4, wherein, the insulator that is inserted between described each discrete guard shield and the pedestal is an insulating trip.
8. according to the property test machine for insulation of each described insulation bearing in the claim 1 to 7, wherein, setting makes the rotary driving part of common axis rotation, and makes radial load act on the load load component of described common axis under the state of described common axis rotation.
9. according to the property test machine for insulation of each described insulation bearing in the claim 1 to 8, wherein, setting makes the chimeric respectively discrete guard shield in the outer ring of each insulation bearing and is inserted in two insulators between the discrete guard shield, replaces described a plurality of discrete guard shield, described common bed, is inserted in the structure of the insulator between described each discrete guard shield and the pedestal.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003182033A JP4369690B2 (en) | 2003-06-26 | 2003-06-26 | Insulation performance testing machine for insulated bearings |
| JP182033/03 | 2003-06-26 | ||
| JP182033/2003 | 2003-06-26 | ||
| JP183755/2003 | 2003-06-27 | ||
| JP183755/03 | 2003-06-27 | ||
| JP2003183755A JP2005017147A (en) | 2003-06-27 | 2003-06-27 | Inner ring temperature measuring device of roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1576860A true CN1576860A (en) | 2005-02-09 |
| CN100385245C CN100385245C (en) | 2008-04-30 |
Family
ID=34593880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031561349A Expired - Fee Related CN100385245C (en) | 2003-06-26 | 2003-08-29 | Insulating property test machine for insulation bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100385245C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943814A (en) * | 2012-11-26 | 2013-02-27 | 大连三环复合材料技术开发有限公司 | Elastic metal plastic bearing bush and temperature measurement assembly of elastic metal plastic bearing bush |
| CN103837248A (en) * | 2014-03-11 | 2014-06-04 | 中国航空动力机械研究所 | Fixing device of bearing thermal probe |
| CN105277861A (en) * | 2015-11-19 | 2016-01-27 | 南车株洲电机有限公司 | Method for testing motor bearing dielectric strength |
| CN105388404A (en) * | 2015-11-19 | 2016-03-09 | 南车株洲电机有限公司 | Insulated bearing electric testing tool |
| CN106383025A (en) * | 2016-11-21 | 2017-02-08 | 上海航天精密机械研究所 | Free turnover type radial shearing force baring platform apparatus |
| CN107921977A (en) * | 2015-10-08 | 2018-04-17 | 川崎重工业株式会社 | The axle box device and temperature-detecting device with temperature sensor unit of railcar bogie |
| CN112762096A (en) * | 2019-11-01 | 2021-05-07 | 苏州三星电子有限公司 | Bearing and direct current motor |
| CN113984386A (en) * | 2021-10-25 | 2022-01-28 | 中车永济电机有限公司 | Insulation performance testing machine for evaluating anti-corrosion capability of bearing structure |
| CN114152438A (en) * | 2021-11-15 | 2022-03-08 | 中车永济电机有限公司 | Dynamic testing device suitable for insulation performance of multi-model rolling bearings |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11133082A (en) * | 1997-10-29 | 1999-05-21 | Matsushita Electric Ind Co Ltd | Inspection device of variable resistor and inspection method |
| CN1111285C (en) * | 1997-11-12 | 2003-06-11 | 冶金工业部自动化研究院 | Expert diagnostic method for fault of dc. motor |
| CN2418490Y (en) * | 2000-03-15 | 2001-02-07 | 武汉铁路分局武昌车辆段 | Device for automatically detecting preformance of generator |
| JP3736486B2 (en) * | 2002-03-25 | 2006-01-18 | 日本精工株式会社 | Anti-corrosion rolling bearing |
-
2003
- 2003-08-29 CN CNB031561349A patent/CN100385245C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943814B (en) * | 2012-11-26 | 2016-04-20 | 大连三环复合材料技术开发股份有限公司 | Elastic metal plastic bearing and elastic metal plastic bearing temperature measurement component |
| CN102943814A (en) * | 2012-11-26 | 2013-02-27 | 大连三环复合材料技术开发有限公司 | Elastic metal plastic bearing bush and temperature measurement assembly of elastic metal plastic bearing bush |
| CN103837248A (en) * | 2014-03-11 | 2014-06-04 | 中国航空动力机械研究所 | Fixing device of bearing thermal probe |
| CN103837248B (en) * | 2014-03-11 | 2016-09-21 | 中国航空动力机械研究所 | Measuring temperature of bearing probe fixture |
| CN107921977B (en) * | 2015-10-08 | 2019-11-01 | 川崎重工业株式会社 | The axle box device and temperature-detecting device with temperature sensor unit of railcar bogie |
| CN107921977A (en) * | 2015-10-08 | 2018-04-17 | 川崎重工业株式会社 | The axle box device and temperature-detecting device with temperature sensor unit of railcar bogie |
| CN105277861A (en) * | 2015-11-19 | 2016-01-27 | 南车株洲电机有限公司 | Method for testing motor bearing dielectric strength |
| CN105388404A (en) * | 2015-11-19 | 2016-03-09 | 南车株洲电机有限公司 | Insulated bearing electric testing tool |
| CN106383025A (en) * | 2016-11-21 | 2017-02-08 | 上海航天精密机械研究所 | Free turnover type radial shearing force baring platform apparatus |
| CN112762096A (en) * | 2019-11-01 | 2021-05-07 | 苏州三星电子有限公司 | Bearing and direct current motor |
| CN113984386A (en) * | 2021-10-25 | 2022-01-28 | 中车永济电机有限公司 | Insulation performance testing machine for evaluating anti-corrosion capability of bearing structure |
| CN114152438A (en) * | 2021-11-15 | 2022-03-08 | 中车永济电机有限公司 | Dynamic testing device suitable for insulation performance of multi-model rolling bearings |
| CN114152438B (en) * | 2021-11-15 | 2024-01-23 | 中车永济电机有限公司 | Dynamic testing device suitable for insulation performance of multi-type rolling bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100385245C (en) | 2008-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11757320B2 (en) | Electric motor rotor discharge protection | |
| CN1299419C (en) | Vibration motor | |
| CN1576860A (en) | Insulating property test machine for insulation bearing | |
| CN111052275B (en) | Method for manufacturing a rotor of an electric machine with a contactless power transfer system, and rotor, electric machine and motor vehicle | |
| JP5364105B2 (en) | Progressive cavity device with transducer | |
| CN101213709B (en) | Slip-ring module for a rotor of an electric machine, electric machine with a slip ring module and method for production of a slip ring module | |
| CN104330223A (en) | Mechanical sealing property testing device and method for measuring axial force and temperature of sealed end surfaces | |
| JP2009250797A (en) | Lubricity evaluation device of lubricant for rolling bearing and lubricity evaluation method | |
| WO2013019353A2 (en) | Method of securing a sealing device to a housing with a limited bore diameter | |
| JP2017218132A (en) | Non-pneumatic tire | |
| CN208399061U (en) | The dynamometer motor floating support structure of Heavy-duty chassis dynamometer | |
| CN1731140A (en) | Measurement system for rheological property of electrorheological fluids (ERF) | |
| CN111780646A (en) | Rolling bearing radial clearance detection device | |
| CN200973040Y (en) | Insulation bearing sleeve for motor | |
| CN1601640A (en) | Low permittivity lubricant for magnetic disk drive systems | |
| JP4539530B2 (en) | Motor insulation inspection device | |
| CN1904398A (en) | Bearing unit and rotating apparatus using the bearing unit | |
| CN115307908B (en) | Bearing capacity detection device for bearing manufacturing | |
| JP4591309B2 (en) | Motor insulation inspection device | |
| CN210005374U (en) | Device for testing performance of friction pair of conductive slip ring with long space life under vacuum condition | |
| JP2007292731A (en) | Bearing inspection method and motor manufacturing method | |
| JP2005017102A (en) | Insulation performance testing machine of insulated bearing | |
| CN207937147U (en) | A kind of oil sealing endurance test equipment | |
| CN109342945B (en) | Motor rapid detection system | |
| CN205718803U (en) | A kind of motor housing concentricity testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20080430 Termination date: 20180829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |