CN104101741A - High-speed magnetic levitation motor assembly test board - Google Patents

High-speed magnetic levitation motor assembly test board Download PDF

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Publication number
CN104101741A
CN104101741A CN201410350405.8A CN201410350405A CN104101741A CN 104101741 A CN104101741 A CN 104101741A CN 201410350405 A CN201410350405 A CN 201410350405A CN 104101741 A CN104101741 A CN 104101741A
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China
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hole
ball
chuck
motor assembly
screw
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CN201410350405.8A
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CN104101741B (en
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刘刚
董宝田
韩邦成
王坤
郑世强
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Beihang University
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Beihang University
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Publication of CN104101741A publication Critical patent/CN104101741A/en
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Abstract

Disclosed is a high-speed magnetic levitation motor assembly test board. In a motor assembly performance test and a motor overall performance test, the high-speed magnetic levitation motor assembly test board serves a function of clamping and positioning assemblies of a high-speed magnetic levitation motor. The high-speed magnetic levitation motor assembly test board mainly comprises a platform base portion, a large through-hole eight-jaw chuck, and a small through-hole eight-jaw chuck, wherein the small and large through-hole eight-jaw chucks can automatically perform centering on a platform base, centers of the small and large through-hole eight-jaw chucks are coaxial, and rolling guide rails for supporting and positioning the two through-hole eight-jaw chucks and a ball screw mechanism for moving a chuck rack are fixed on the platform base; the two through-hole eight-jaw chucks are structurally the same, and vortex grooves on two sides are driven by a center bevel gear to simultaneously rotate so as to push eight movable jaws from two sides to simultaneously perform centred motion and clamp assemblies to be tested. The high-speed magnetic levitation motor assembly test board is stable in clamping, high in centering accuracy during the test, convenient to operate, and wide in application range and can be conveniently used for the motor assembly performance test and the motor overall performance test.

Description

A kind of high speed magnetic suspension motor module testing platform
Technical field
The present invention relates to a kind of mechanical test platform of high speed magnetic suspension motor assembly, in electric machine assembly performance test and motor call through test, the each assembly of high speed magnetic suspension motor is played to clamping position effect.
Background technology
Each assembly of high speed magnetic suspension motor is carried out to performance test for R&D process or production run all has very important meaning.Motor rotor component comprises that part is more and assembly relation is complicated, need to study its mechanical characteristic under high rotating speed load by test.In the design of magnetic bearing, need to test and obtain relevant feedback data the performance of magnetic bearing.And in the production run of high speed magnetic suspension motor, also need the performance of each assembly of test verification motor whether reliable.These testing experiments are because motor revolution is high, power large, control accuracy requires high, and the accuracy of alignment to fixture and grip strength have also proposed high requirement.The universal test bench that does not at present also carry out this type of test, conventionally to the single fixture of single part design processing, not only cost was higher, versatility is poor, and had extended the R&D cycle in the past.In overall performance when test of high speed magnetic suspension motor, between each module fixture in the past, be difficult to ensure accuracy of alignment, after each magnetic suspension motor assembly and electric machine casing assembling all need to being completed, carry out various tests, experimentation cost is higher, and observation property is poor.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiencies in the prior art, the high speed magnetic suspension motor assembly test that a accuracy of alignment is high, clamping is stable, easy to operate, versatility is good platform is provided.
Technical solution of the present invention is: high speed magnetic suspension motor assembly test platform, comprise platform base, rolling guide, ball-screw, feed screw nut, baffle plate, leading screw support component, leading screw fixed part, large through-hole eight dog chucks and small through hole eight dog chucks, the central authorities that wherein ball-screw is placed in platform base are for mobile two kinds of through hole eight dog chucks, and the rolling guide of high walking precision is symmetrically arranged in ball-screw both sides for locating two kinds of through hole eight dog chucks.Ball-screw passes on left deep groove ball bearing and is connected with leading screw support component, and right side is connected with leading screw fixed part by two angular contact ball bearings.Feed screw nut coordinates with ball-screw and can be in platform base upper surface slide, and dismountable baffle plate is arranged in feed screw nut draw-in groove.Rolling guide is connected with platform base by screw with leading screw support component, leading screw fixed part.
Large through-hole eight dog chucks are identical with small through hole eight dog chuck structures, mainly comprise: chuck holder, chuck movement, end cap, ball slider.Chuck movement is arranged in chuck holder, and by end cap axial restraint.At two ball sliders of the symmetrical installation in chuck holder bottom, coordinate to locate two kinds of through hole eight dog chucks by ball slider and the rolling guide that is symmetrically fixed on platform base.
Described chuck movement comprises: center bevel gear, left scroll, left angular wheel, right scroll, right bevel gear, movable jaw and claw retainer.In order to ensure grip strength and the accuracy of alignment under major diameter, the present invention adopts eight synchronous clamp assemblies of movable jaw.Eight movable jaws are circumferentially arranged in the gathering sill of claw retainer, and movable jaw axially coordinates with left and right scroll respectively by the volution trough of both sides.In the scroll of left and right, by screw, left and right conical gear is installed respectively, left and right conical gear engages with the center bevel gear on claw retainer top simultaneously, drives successively left and right conical toothed disc, left and right scroll, middle eight movable jaws thereby realize by center bevel gear.Center bevel gear lower end is arranged on claw retainer, and upper end is connected with chuck holder.Left and right scroll external diameter and chuck holder endoporus clearance fit.Claw retainer external diameter coordinates and is screwed with chuck holder endoporus.
Described two kinds of through hole eight dog chucks are that structure is identical; two kinds of specifications that vary in size; thereby widen the external diameter scope that testing table can clamp assemblies; large through-hole eight dog chuck maximum grip diameters are that 300mm can be used to clamp motor stator component and magnetic suspension shaft bearing assembly, and small through hole eight dog chuck maximum grip diameters are that 150mm can be used to clamp mechanical protection bearing and sensor mount.
Described ball-screw drives its rotating at the external servomotor of leading screw fixed part, thereby drives feed screw nut to horizontally slip at platform base upper surface.Feed screw nut moves separately certain chuck holder by a dismountable thick baffle plate and does not affect the location of other through hole eight dog chucks.At platform base length direction, scale is installed, like this can by motor easily mobile through hole eight dog chucks regulate the end play of test assembly.
Principle of the present invention is: the face of cylinder that the outside surface of each assembly in high speed magnetic suspension motor is different-diameter, requires in test each assembly to ensure higher right alignment.The present invention has designed through hole eight dog chucks of two kinds of automatic centerings of size, has adopted both sides volution trough to drive the mode of eight movable jaws simultaneously, has not only ensured accuracy of alignment, and has ensured the grip strength of clamping major diameter assembly.Use spanner to clockwise rotate the center bevel gear that is positioned at two kinds of through hole eight dog chuck tops, engaging by center bevel gear two of the left and right scroll that left and right conical gear promotes to be attached thereto rotates to both direction respectively, left and right sides scroll promotes eight movable jaws from two rotation directions respectively by volution trough, makes eight movable jaws synchronously move clamping test assembly to center.Left and right scroll is identical part, and the rotation direction of its volution trough is all clockwise.In the time rotating towards both direction respectively under the promotion of left and right scroll at center bevel gear, due to two scroll face to face, therefore respectively in the direction towards volution trough, two scroll are all to clockwise rotate.The volution trough of movable jaw both sides is counterclockwise, and point cutting such as discoid part that eight movable jaws can be carved with counterclockwise volution trough by both sides forms.Chuck holder is installed on rolling guide location by the ball slider of bottom symmetry, has not only ensured the accuracy of alignment between different through hole eight dog chucks, and has been convenient to realize moving axially of through hole eight dog chucks by ball-screw.Platform base upper surface is fixed with the ball screw arrangement of driven by servomotor, and feed screw nut is connected with chuck holder by a detachable baffle plate.In the time taking off baffle plate, leading screw rotarily drives feed screw nut and does not move left and right with any through hole eight dog chucks and interfere.In the time that needs move certain chuck holder, only need to feed screw nut be moved under chuck holder and baffle plate is installed, promote it by baffle plate and move axially.
The present invention's advantage is compared with prior art:
(1) testing table of the present invention, two kinds of through hole eight dog chuck internal diameters are through hole, the axial length of structure also shortens as much as possible, thereby to being held the axial length less-restrictive of assembly.Due to through hole eight dog chucks that comprised two kinds of specifications of size, the range of size that radial direction can clamp is large.Can clamp easily a series of assemblies such as motor stator component, magnetic suspension shaft bearing assembly, sensor mount, mechanical protection bearing, there is stronger versatility and extendability.Using through hole eight dog chucks of organizing different sizes to be placed on testing table can arrange and realize different tests easily.
(2) two kinds of through holes, eight dog chuck axial lengths of the present invention are shorter, not only facilitate the axial arranged of testing equipment, and are convenient to the collection of viewing test phenomenon and data.
(3) testing table of the present invention, the center bevel gear that rotates two kinds of through hole eight dog chuck tops by spanner can drive both sides scroll to rotate simultaneously, thereby drive eight movable jaw clamp assemblies in the both sides of movable jaw from two rotation directions respectively simultaneously, not only easy to operate but also make assembly clamping more stable.
(4) two kinds of through hole eight dog chucks of the present invention are simple in structure, and wherein left and right scroll and left and right conical gear are all identical part, make whole eight dog chuck part kinds less, are convenient to part process and assemble and working service.Affect the significant dimensions of accuracy of alignment, rolling slide block installed surface, the scroll external diameter equidimension of for example chuck holder endoporus and chuck holder bottom, can farthest reduce the scale error between part by part combination processing of the same race, ensure the accuracy of alignment between different through hole eight dog chucks.
(5) two kinds of through hole eight dog chucks of the present invention are fixed on the rolling guide of high walking precision by ball slider, move by feed screw nut, and positioning precision is high, and axial clearance regulation is convenient.
Brief description of the drawings
Fig. 1 is high speed magnetic suspension motor assembly test platform one-piece construction sketch of the present invention;
Fig. 2 is the structure explosive view of large through-hole eight dog chucks of the present invention and chuck movement thereof, and wherein Fig. 2 a is large through-hole eight dog chuck structure explosive views, and Fig. 2 b is chuck cassette mechanism structure explosive view;
Fig. 3 is the present invention in concrete application example, and this testing table is together with the structural representation of tested motor;
Fig. 4 is the two-dimensional engineering graphic of applying shown in Fig. 3, and wherein Fig. 4 a is main apparent rotation semisectional view, and Fig. 4 b is that a left side is depending on partly cuing open figure.
Embodiment
As shown in Figure 1, magnetic suspension motor assembly test platform of the present invention comprises platform base 1, rolling guide 2, ball-screw 4, feed screw nut 6 and baffle plate 7, leading screw support component 3, leading screw fixed part 5, large through-hole eight dog chucks 8 and small through hole eight dog chucks 9, and wherein rolling guide 2, leading screw support component 3 and leading screw fixed part 5 are all connected with platform base 1 by screw; Ball-screw 4 passes on left deep groove ball bearing and is connected with leading screw support component 3, and right side is connected with fixed part 5 by two angular contact ball bearings; Feed screw nut 6 coordinates with ball-screw 4 and in platform base upper surface slide; Dismountable baffle plate 7 is arranged in feed screw nut 6 draw-in grooves.Large through-hole eight dog chucks 8 and small through hole eight dog chucks 9 are placed on platform base 1; wherein large through-hole eight dog chucks 8 can be used to clamp motor stator component and magnetic suspension shaft bearing assembly, and small through hole eight dog chuck framves 9 can be used to clamp mechanical protection bearing and sensor mount.
Fig. 2 is the structure explosive view of large through-hole eight dog chucks 8 of the present invention and chuck movement 82 thereof, large through-hole eight dog chucks mainly comprise as shown in Figure 2 a: chuck holder 81, chuck movement 82, end cap 83, ball slider 84, chuck movement 82 is arranged in chuck holder 81, and by end cap 83 axial restraints.Coordinate with the rolling guide 2 that is symmetrically fixed on platform base 1 at two ball sliders 84 of the symmetrical installation in chuck holder 81 bottoms.
As shown in Figure 2 b, described chuck movement 82 comprises: center bevel gear 821, left scroll 822, left angular wheel 823, right bevel gear 826, right scroll 827, movable jaw 825 and claw retainer 824.The present invention adopts the synchronous clamp assemblies of eight movable jaws 825, and eight movable jaws 825 are circumferentially arranged in the gathering sill of claw retainer 824, and axially both sides coordinate with left and right scroll 822,827 respectively by the volution trough of both sides.In left and right scroll 822,827, by screw, left and right conical gear 823,826 is installed respectively, left and right conical gear 823,826 engages with the center bevel gear 821 on claw retainer 824 tops simultaneously.Thereby realize and drive both sides bevel gear dish 823,826 by center bevel gear 821, both sides bevel gear dish 823,826 drives respectively both sides scroll 822,827 simultaneously, in the middle of both sides scroll 822,827 drives together, eight movable jaws 825 carry out clamp assembly.Center bevel gear 821 lower ends are arranged on claw retainer 824, and upper end is connected with chuck holder 81.Left and right scroll 822,827 external diameters respectively with chuck holder 81 endoporus clearance fit.Claw retainer 824 external diameters coordinate and are screwed with chuck holder 81 endoporus.
When Fig. 3 is application test bed testing model magnetic suspension motor assembly of the present invention, the structural representation of testing table arrangement.As shown in Figure 3; in this application; adopt four large through-holes, eight dog chucks 8 axial magnetic bearing assembly 12, shaft extension end radial direction magnetic bearing assembly 13, non-shaft stretching end radial direction magnetic bearing assembly 14, the motor stator component 15 of clamping high-speed magnetic suspension motor respectively; adopt two little eight dog chucks 9 to clamp respectively shaft extension terminal tool protection bearing 11 and non-shaft stretching end mechanical protection bearing 10; motor rotor component 16 is placed in motor center hole, and leaves protection gap with shaft extension end mechanical protection bearing 11 and non-shaft stretching end mechanical protection bearing 10.The accuracy of alignment of each assembly ensures by large through-hole eight dog chucks 8, small through hole eight dog chucks 9 and rolling guide 2, and adjusting is moved by ball-screw 4 in the axial arranged gap of assembly.In this application; adopt axial magnetic bearing assembly 12, shaft extension end radial direction magnetic bearing assembly 13, non-shaft stretching end radial direction magnetic bearing assembly 14 floatation electric motor rotor assembly 16; load moment of torsion by motor stator component 15; shaft extension end mechanical protection bearing 11 and 10 auxiliary protection functions of non-shaft stretching end mechanical protection bearing, ruuning situation and the overall performance of motor that can each assembly of testing of electric motors.Fig. 4 is the two-dimensional engineering graphic of applying shown in Fig. 3, and wherein Fig. 4 a is front view, and Fig. 4 b is left view.As shown in Fig. 4 a; four large through-hole eight dog chucks 8 are arranged on platform base 1 vertically; the axial magnetic bearing assembly 12 of clamping high-speed magnetic suspension motor, shaft extension end radial direction magnetic bearing assembly 13, non-shaft stretching end radial direction magnetic bearing assembly 14, motor stator component 15 successively; two small through hole eight dog chucks 9 clamp respectively shaft extension terminal tool protection bearing 11 and non-shaft stretching end mechanical protection bearing 10, and motor rotor component 16 is placed in motor center hole.In Fig. 4 a, partial enlarged drawing is depicted as the sectional side elevation structure of large through-hole eight dog chucks 8 of clamping motor stator component 15, the movable jaw 825 that clamps as shown in the figure motor stator component 15 engages with left and right scroll 822,827, left and right conical gear 823,826 is installed respectively in the scroll of left and right, and whole chuck movement 82 is arranged in chuck holder 81 and passes through screw in compression by end cap 83.As laterally partly cutd open as shown in Fig. 4 b, large through-hole eight dog chucks 8 coordinate location by ball slider 84 with the rolling guide 2 that is symmetrically fixed on platform base 1, and ball-screw 4 is placed in the middle of two rolling guides 2.Eight movable jaws 825 of large through-hole eight dog chucks 8 are driven and are clamped non-shaft stretching end radial direction magnetic bearing assembly 14 simultaneously by the center bevel gear 821 on claw retainer 824 tops.Testing table of the present invention also can be used for the performance test of motor single component, such as the dynamic characteristic test of motor rotor component and the performance test of magnetic suspension shaft bearing assembly etc.
The content not being described in detail in instructions of the present invention belongs to the known prior art of professional and technical personnel in the field.

Claims (4)

1. a high speed magnetic suspension motor assembly test platform, it is characterized in that: comprise platform base (1), rolling guide (2), ball-screw (4), feed screw nut (6), baffle plate (7), leading screw support component (3), leading screw fixed part (5), large through-hole eight dog chucks (8) and small through hole eight dog chucks (9), wherein ball-screw (4) is placed in the central authorities of platform base (1), and the rolling guide (2) of high walking precision is symmetrically arranged in ball-screw (4) both sides; Ball-screw (4) passes on left deep groove ball bearing and is connected with leading screw support component (3), and right side is connected with leading screw fixed part (5) by two angular contact ball bearings; Feed screw nut (6) coordinates with ball-screw (4) and can be in platform base (1) upper surface slide, and dismountable baffle plate (7) is arranged in the draw-in groove of feed screw nut (6); The rolling guide (2) of high walking precision is connected with platform base (1) by screw with leading screw support component (3), leading screw fixed part (5);
Described large through-hole eight dog chucks (8) mainly comprise chuck holder (81), chuck movement (82), end cap (83), ball slider (84); Wherein chuck movement (82) is arranged in chuck holder (81), and by end cap (83) axial restraint; In chuck holder (81) bottom, symmetrical two ball sliders (84) of installing coordinate with the rolling guide (2) that is symmetrically fixed on platform base (1); Described chuck movement (82) comprises center bevel gear (821), left scroll (822), left angular wheel (823), right bevel gear (826), right scroll (827), eight movable jaws (825) and claw retainer (824); Eight movable jaws (825) are along being circumferentially arranged in the gathering sill of claw retainer (824), and axially both sides coordinate with left and right scroll (822), (827) respectively by the volution trough of both sides; On left and right scroll (822), (827), by screw, left and right conical gear (823), (826) are installed respectively, engage with the center bevel gear (821) on claw retainer (824) top simultaneously left and right conical gear (823), (826); It is upper that center bevel gear (821) lower end is arranged on claw retainer (824), and upper end is connected with chuck holder (81); Left and right scroll (822), (827) external diameter respectively with chuck holder (81) endoporus clearance fit; Claw retainer (824) external diameter coordinates and is screwed with chuck holder (81) endoporus.
2. high speed magnetic suspension motor assembly test platform according to claim 1; it is characterized in that: described large through-hole eight dog chucks (8) are identical with small through hole eight dog chucks (9) structure, vary in size; widen the external diameter scope that testing table can clamp assemblies; wherein large through-hole eight dog chucks (8) maximum grip diameter is 300mm; can be used to clamp motor stator component and magnetic suspension shaft bearing assembly; small through hole eight dog chucks (9) maximum grip diameter is 150mm, can be used to clamp mechanical protection bearing and sensor mount.
3. high speed magnetic suspension motor assembly test platform according to claim 1, it is characterized in that: described large through-hole eight dog chucks (8) and small through hole eight dog chucks (9) are by rolling guide (2) location of two high walking precision, complete and move axially by ball screw framework (4), and coordinate to realize certain chuck holder of independent movement with a dismountable baffle plate (7) by feed screw nut (6) and the location that do not affect other chucks.
4. high speed magnetic suspension motor assembly test platform according to claim 1, it is characterized in that: described chuck movement (82) drives left and right conical gear (823), (826) by center bevel gear (821) simultaneously, left and right conical gear (823), (826) drive respectively left and right scroll (822), (827), and in the middle of left and right scroll (822), (827) drive simultaneously again, eight movable jaws (825) carry out clamp assembly together.
CN201410350405.8A 2014-07-22 A kind of high speed magnetic suspension motor module testing platform Active CN104101741B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410350405.8A CN104101741B (en) 2014-07-22 A kind of high speed magnetic suspension motor module testing platform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410350405.8A CN104101741B (en) 2014-07-22 A kind of high speed magnetic suspension motor module testing platform

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CN104101741A true CN104101741A (en) 2014-10-15
CN104101741B CN104101741B (en) 2017-01-04

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109696566A (en) * 2017-10-20 2019-04-30 株洲中车时代电气股份有限公司 The test mounting rack of end face installation class motor
CN109774968A (en) * 2019-01-22 2019-05-21 南京航空航天大学 A kind of shaft part and support adjustable multi-bearing rotor testing stand
CN113070868A (en) * 2021-04-01 2021-07-06 沈阳工业大学 Magnetic force driven parallel robot
CN113125957A (en) * 2021-04-28 2021-07-16 河北工业大学 Testing arrangement of frameless motor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109696566A (en) * 2017-10-20 2019-04-30 株洲中车时代电气股份有限公司 The test mounting rack of end face installation class motor
CN109696566B (en) * 2017-10-20 2020-10-23 株洲中车时代电气股份有限公司 Test mounting frame of end face mounting type motor
CN109774968A (en) * 2019-01-22 2019-05-21 南京航空航天大学 A kind of shaft part and support adjustable multi-bearing rotor testing stand
CN113070868A (en) * 2021-04-01 2021-07-06 沈阳工业大学 Magnetic force driven parallel robot
CN113070868B (en) * 2021-04-01 2024-05-24 沈阳工业大学 Magnetically-driven parallel robot
CN113125957A (en) * 2021-04-28 2021-07-16 河北工业大学 Testing arrangement of frameless motor

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