CN102426341A - Magnetic test rotary table - Google Patents
Magnetic test rotary table Download PDFInfo
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- CN102426341A CN102426341A CN201110322603XA CN201110322603A CN102426341A CN 102426341 A CN102426341 A CN 102426341A CN 201110322603X A CN201110322603X A CN 201110322603XA CN 201110322603 A CN201110322603 A CN 201110322603A CN 102426341 A CN102426341 A CN 102426341A
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Abstract
The invention relates to a magnetic test rotary table. The rotary table comprises a rotary table body (3) and a rotating platform (8). The rotary table body (3) includes a rotary table pedestal flange (7) and a cylindrical body (36); a cylindrical cavity is formed inside the cylindrical body (36) and is engaged with the rotating platform (8) that is above the cylindrical cavity; an adjusting assembly part (50) is arranged in the cavity of the cylindrical body (36); and the adjusting assembly part (50) includes a coarse adjustment unit, a fine adjustment unit and an adjusting conversion device (49). Advantages of the invention are as follows: (1), the table has a reasonable structure and can be used conveniently; the orientation is easy to adjust; measuring precision is high; and the error is small; (2), a measured device is easy to align; fixing intensity is high; the whole structure and stability are good; and assembly precision is high; (3), the rotary table body has a small vertical dimension and a compact structure; and the position of the rotary table pedestal flange is high and the stability is good; and (4), non-magnetic materials and engineering plastics are employed, so that measurement is affected little by the environment.
Description
Technical field
The present invention relates to the magnetic test apparatus, particularly, the present invention relates to a kind of magnetic test turntable.
Background technology
Because the particularly spaceborne flux-gate magnetometer of magnetometer possesses requirements such as higher sensitivity and measuring accuracy; Its three-axis sensor need be away from the particularly direct current magnetic interference of satellite celestial body equipment of interference source; Therefore to be installed in of stretching out outside the satellite body surfaces usually about more than 3 meters on the boom for the star upper sensor; Therefore not only in the sensor Primary Components such as triaxial antenna coil of encapsulation need possess very high electric parameter and mate requirement and the very high firm intensity of installation, structure installation accuracy etc. each other and requirements such as very high in addition measuring accuracy, three axle bed cursor position precision such as require; Therefore need, sensor carry out lot of test before using; Carrying out careful test with the three-axis sensor magnetic of specialized equipment and magnetometer test turntable is very crucial work, thereby is necessary to invent high-precision magnetic test turret plant.
Summary of the invention
The objective of the invention is in order to overcome the problems referred to above, a kind of magnetic test turntable is provided.
To achieve these goals; A kind of magnetic test of magnetic test turntable of the present invention turntable; Said turntable comprises turntable body 3 and rotation platform 8; Said turntable body 3 comprises rotary table base ring flange 7 and cylindrical body 36, and said cylindrical body 36 inside form cylindrical cavities and are meshed with the rotation platform 8 that is positioned at its top
In the cavity of said cylindrical body 36, be provided with and regulate assembly parts 50, said adjusting assembly parts 50 comprise coarse adjustment unit and fine tuning unit and regulate conversion equipment 49;
Said coarse adjustment unit comprises coarse adjustment ratch 28; The turning axle conical gear 55 of the conical gear of the end of described coarse adjustment ratch 28 and distal ends axle 27 lower ends is meshing with each other, and realizes rotation platform 8 orientation coarse adjustment through the orientation coarse adjustment knob 4 of coarse adjustment ratch 28 ends;
Said fine tuning unit comprises thin tuning worm screw 24 and coaxial coupling worm-gear toothing wheels 30; Said thin tuning worm screw 24 ends are meshed with the gear of a thin tuning gear on worm; Said coaxial coupling worm-gear toothing wheels 30 for diameter cog 23 with the lower gear 20 coaxial worm-gear toothings of being close to the common tooth wheel rim of composition; Said worm-gear toothing is meshed with the worm screw of thin tuning gear on worm, when said thin tuning worm screw 24 is rotated, drives the rotation of thin tuning gear on worm; Cause that the coaxial coupling worm-gear toothing wheels 30 that are engaged with rotate; Described coaxial coupling worm-gear toothing wheels 30 make itself and 27 bindings of distal ends axle be one through the friction force that the end face 35 that cogs separates with adjusting between platen 44 lower surfaces, and transmission of power to distal ends axle 27, is realized rotation platform 8 orientation fine tunings;
Said adjusting conversion equipment 49 comprises that thickness is regulated conversion knob 41, thickness is regulated rotating shaft 40, thickness adjusting excentric shaft 45, swing arm rotary shaft rack 43, swing arm 53, spring location washer 38, conversion platen spring 48, eseparation ring 46, regulated and separate platen 44 and separator disk register pin 47; Wherein, Thickness is regulated rotating shaft 40 and thickness, and to regulate excentric shaft 45 be that central axis staggers or two sections parallel shaft parts that join of coaxial line not each other; Axis hole one outer end that the turntable sidewall is passed in thickness adjusting rotating shaft 40 is fixed with thickness adjusting conversion knob 41; Be positioned at the inner other end of cylindrical cavity and thickness adjusting 45 parallel joining of excentric shaft, regulate excentric shaft 45 is regulated rotating shaft 40 around thickness axis rotation and be positioned at the inner thickness of turntable cylindrical cavity fully;
53 one-tenth H types of the swing arm of described adjusting conversion equipment 49 topmosts; Its two tip is separated platen 44 through separator disk register pin 47 and adjusting and is connected; The other end is hinged with the lateral aperture that is fixed on the swing arm rotary shaft rack 43 on the turntable body 3 inner barrel-shaped cavity sidewalls; Thickness is regulated excentric shaft 45 and is positioned at the medium position under the swing arm 53; When thickness adjusting excentric shaft 45 is regulated the axis rotation of rotating shaft 40 around thickness; Regulate excentric shaft 45 and come jack-up or put down the swing arm 53 that is in contact with it through regulating the wrong mutually thickness of rotating shaft 40 axis in the eccentric rotary of the anglec of rotation that is equal to or greater than 90 degree with thickness, thus two tips that drive swing arm 53 raise or put down with bigger amplitude of fluctuation, when put down at two tips of said swing arm 53; The separator disk register pin 47 that is positioned at 53 two tips of swing arm drives eseparation ring 45 compressing and converting platen springs 48 and lifts adjusting separation platen 44 adjusting separation platen 44 is separated with the end face 35 that cogs, and under said situation, can only carry out coarse adjustment;
The thickness adjusting conversion knob 41 of said control thickness adjustment state is positioned at outside the turntable body 3 and with orientation coarse adjustment knob 4 and is in same side position; Thickness is regulated conversion knob 41 and itself is also comprised except the installation axle hole surrounding structure of regulating rotating shaft 40 ends near thickness is to orientation coarse adjustment knob 4 positions and extend envelope above orientation coarse adjustment knob 4 and coarse adjustment knob 42 structure divisions in the outside; Coarse adjustment knob 42 structure divisions play orientation coarse adjustment knob 4 effects that hide; This moment is because the covering influence of coarse adjustment knob 42 can not be with the direct control azimuth coarse adjustment of hand knob 4; Thereby under the thin tuning state, can not misroute orientation coarse adjustment knob 4 easily; Coarse adjustment knob 42 is to be in the position that semi-surrounding orientation coarse adjustment knob 4 on the whole when being in the thin tuning state; Simultaneously; Regulate with thickness that the rotating shaft 40 parallel thicknesses that are connected to one are mutually regulated excentric shaft 45 because both off-centre designs and total system are only regulated the position that is lower than thickness adjusting rotating shaft 40 axis that axis that the rotation of rotating shaft 40 axis makes the thickness of this moment regulate excentric shaft 45 turns to around thickness; Swing arm 53 and the eseparation ring 46 corresponding lowest points that drop to that link have with it loosened conversion platen spring 48 and have made to regulate to separate on the end face that platen 44 is pressed on coaxial coupling wheel group 30 and cause distal ends axle 27 to connect synchronous rotation with coaxial coupling wheel group 30; Briefly during the coarse adjustment state crowngear of coarse adjustment knob 4 in orientation through coarse adjustment ratch 28 ends be fixed on turning axle conical gear 55 on the turning axle lower end 34 and be meshed and drive 27 rotations of distal ends axle; Thickness adjusting conversion this moment knob 41 is no longer to hide after lifting on orientation coarse adjustment knob 4; Thickness adjusting this moment excentric shaft 45 rotates to be in thickness adjusting rotating shaft 40 and lifts swing arm 53 and regulate the position of separating platen 44, and distal ends axle 27 is in released state with coaxial coupling wheel group 30.
A kind of improvement as such scheme; Said cogging 23 is provided with cog fan groove 31 and the axisymmetric with it coaxial annular through hole 29 that cogs; The said fan groove 31 that cogs is provided with hole radially on the inwall near the central gear axis hole; And in described each hole, plant the torsion-bar spring of establishing a straight-bar shape, plant corresponding to the position of the coaxial annular through hole 29 that cogs on said lower gear 20 upper surfaces and be provided with lower gear rotation lock pin 19; Said lower gear rotation lock pin 19 contacts with the free end of the torsion-bar spring of straight-bar shape; Wherein lower gear rotation lock pin 19 and the surface of contact of the torsion-bar spring of straight-bar shape are that a cylindricality shank at cylindrical lower gear rotation lock pin 19 is head-on located into the top and become the big damaged part of the inverted wedge shape of one-tenth gradually to root and make the excellent type torsion bar free end contact point that rotates torsion-bar spring group 21 receive a sensing and the damaged perpendicular elastic thrust in plane of wedge shape; When to be that the last lower gear of said coupling worm-gear toothing wheels 30 is coaxial relatively reverse do angular displacement; Because the free-ended barrier effect of the torsion-bar spring to being contacted of lower gear rotation lock pin 19 makes the torsion-bar spring generation elastic deformation of straight-bar shape; And produce the elastic force opposite between the lower gear rotation lock pin 19 with the angular displacement torsional direction; And because the big end down oblique wedge shape surface of contact on the columniform lower gear rotation lock pin 19 pair acts on the component that makes torsion-bar spring also receive a sensing lower gear direction simultaneously with free-ended being tilted to down of torsion-bar spring; The force action of these two power be make coaxial coupling worm-gear toothing wheels 30 cog and lower gear has the trend reversed of opposing angular displacement to tend to adjacent to each other with both, elastic force makes cogging of coaxial coupling worm-gear toothing wheels 30 and lower gear clamps the state that is in no free clearance with the teeth of thin tuning gear on worm.
As another improvement of such scheme, the length of said torsion-bar spring exposed portions serve is less than the radial dimension of the fan groove 31 that cogs; The said degree of depth that cogs fan groove 31 accounts for more than 2/3 of 23 thickness that cogs, and 31 pairs of gear centre axis of fan groove subtended angle that cogs is greater than 10 degree, and the said coaxial annular through hole 29 that cogs has subtended angle; Plant the lower gear rotation lock pin 19 established on the said lower gear 20 and become the damaged part of the inverted wedge shape of great achievement from top to bottom gradually beginning to have cut one from the top on head-on to the bottom over against the cylindricality shank of the lower gear rotation lock pin 19 of torsion-bar spring; The damaged maximum ga(u)ge of wedge shape rotates 1/3 of lock pin 19 diameters greater than lower gear, and the plane at the damaged part of wedge shape place and the angle between the lower gear rotation lock pin 19 are greater than 12 degree.
Another improvement as such scheme; It is disc that described adjusting separates platen 44; Wherein face is the tubular shafts hole body 56 of protrusion in the heart; Tubular shafts hole body 56 outsides are provided with in the axis hole of fluting, tubular shafts hole body 56 of the spring coil 59 that is installed has axial keyway, and the bottom surface of regulating the disc part of separating platen 44 is plane and end face is tapered; Said eseparation ring 46 is positioned at the outside of tubular shafts hole body 56; Eseparation ring 46 is the dish type at the no end; The diameter of bore that is positioned at the bottom is slightly larger than tubular shafts hole body 56 external diameters; Spacing with the spacing ring 58 under it by the jump ring circle in the fluting 59, spacing ring 58 has lower friction factor, and eseparation ring 46 tops are provided with two through holes in order to separator disk register pin 47 to be installed to two tips of swing arm 53 along ring external diameter endless belt, top; It is spacing by 60 on the turning axle jump ring circle that is positioned at turning axle jump ring groove 57 that whole adjusting assembly parts 50 are applied in this part of distal ends axle.
Also a kind of improvement as such scheme; The inner space of described turntable body 3 is the open barrel-shaped cavitys of base seal, top, barrel-shaped sidewall be provided with swing arm rotary shaft rack 43 and pass 3 levels that coarse adjustment ratch 28, thickness regulate rotating shaft 40 and thin tuning worm screw 24 to jack; The medium position that pedestal ring flange 7 outside the turntable body 3 and cylindrical body 36 coaxial cables are looped around cylindrical body 36.
As also a kind of improvement of such scheme, described rotation platform 8 is positioned on the turntable body 3,
Turntable top cover 51 side bottom of said truncated cone-shaped have one 360 degree angle of circumference scales 17; The taper angle of the truncated cone-shaped side of turntable top cover 51 is 65 ± 30 degree; The diameter of the turntable top cover 51 of said truncated cone-shaped is 10～15 with the thickness ratio; Turntable top cover 51 is provided with circular inserting groove 37, benchmaring window 12 and turntable top cover mounting hole 18, and turntable top cover 51 bottoms are provided with the annular groove corresponding annular fin coaxial with turntable body 3 tops;
Described benchmark fixed mount 2 is provided with the reference field 14 perpendicular to turntable top cover 51; Said reference field 14 is provided with the fixed mount through hole 13 of square-section; One side of said reference field is provided with vertical with it benchmark incline 10, and the length of said benchmark incline 10 is greater than 40% of benchmark fixed mount 2 height, and the section of benchmark incline 10 becomes rectangle; The cross-sectional dimension of benchmark incline 10 sections is not less than 6% of benchmark fixed mount 2 cross-sectional dimension, is used for fixing specimen.
As also a kind of improvement of such scheme, the top of said distal ends axle 27 be provided with tubular shafts hole body 56 in the axial keyway of corresponding keyway same widths.
Last a kind of improvement as such scheme; The edge end face of described pedestal ring flange 7 is provided with 2 mutually perpendicular horizontal reference appearance 32 of orientation and around some adjusting leg screw rod screws of turntable body 3; The leg screw rod guard shield 39 of high-precision adjusting leg screw rod 11 and top setting is set in the screw; Said leg screw rod guard shield 39 lower edges are pressed in the annular groove around the leg screw rod screw; Regulating leg screw rod 11 is anti-the first half that tune joint pin 5; The anti-Lower Half that tunes joint pin 5 is discoidal height adjustment disk 52 and the semisphere footing that is positioned under the height adjustment disk 52, is provided with on the height adjustment disk 52 to apply the anti-sliding shim 9 that revolves the anti-spinning spring 6 of the required tension force of self-locking and be positioned at the low ratio of slip at anti-spinning spring 6 two ends.
The invention has the advantages that:
1) rational in infrastructure, easy to use, the orientation is easy to regulate, and measuring accuracy is high, and error is little;
2) measured piece is easy to align, and constant intensity is high, one-piece construction and good stability, and assembly precision is high;
3) the body vertical dimension is little, compact conformation, and rotary table base flange position is high in addition, and steadiness is good;
4) adopt nonmagnetic substance and engineering plastics, the measurement environment influence is little.
Description of drawings
Fig. 1 is the 3-D view of magnetic test turntable outward appearance;
Fig. 2 is the tomograph of the inner rotation adjusting part of magnetic test turntable;
Fig. 3 is the three-dimensional assembly drawing that thickness is regulated the conversion and control part;
Fig. 4 is the cut-open view of inner rotation adjusting of magnetic test turntable and coupling wheel partial 3-D structure.
Description of drawings
1, magnetic test turntable 2, benchmark fixed mount 3, turntable body
4, orientation coarse adjustment knob 5, anti-joint pin 6, the anti-spinning spring of tuning
7, rotary table base ring flange 8, rotation platform 9, sliding shim
10, benchmark incline 11, adjusting leg screw rod 12, benchmaring window
13, fixed mount through hole 14, reference field 15, rotation platform end face
16, fixed mount side 17, angle of circumference scale 18, turntable top cover mounting hole
19, lower gear rotation lock pin 20, lower gear 21, rotation torsion-bar spring group
22, orientation thin tuning knob 23 cog 24, the thin tuning worm screw
25, swing arm rotating shaft 26, the public worm gear tip edge of coupling wheel
27, distal ends axle 28, coarse adjustment ratch
29, cog coaxial annular through hole 30, coaxial coupling wheel group 31, fan groove cogs
32, horizontal reference appearance 33, turntable body base bottom 34, turning axle lower end
35, cog end face 36 cylindrical body 37, circular inserting groove
38, spring location washer 39 is regulated leg screw rod guard shield 40, thickness is regulated rotating shaft
41, thickness is regulated conversion knob 42, coarse adjustment knob 43, swing arm rotary shaft rack
44, regulate separation platen 45, thickness adjusting excentric shaft 46, eseparation ring
47, separator disk register pin 48, conversion platen spring 49, adjusting conversion equipment
50, regulate assembly parts 51, turntable top cover 52, height adjustment disk
53, swing arm 54, adjusting separate platen breach 55, turning axle conical gear
56, tubular shafts hole body 57, turning axle jump ring groove 58, spacing ring
59, jump ring circle 60, turning axle jump ring circle 61, lower gear end face
Embodiment
Further describe below in conjunction with the accompanying drawing specific embodiments of the invention.
Described turntable body 3 becomes cylindrical body 36 by outward appearance, and turntable body 3 inner spaces become barrel-shaped space, and the height of 3 one-tenth barrel-shaped inner spaces of turntable body is 1.6 to 2.8 times of thickness of thin tuning coupling wheel group 30.
The whole adjusting assembly parts 50 of described adjusting rotation platform all are positioned at the barrel-shaped cavity inside of turntable body 3 except 3 adjusting knobs; Comprise be equipped with the coaxial coupling wheel group 30 of regulating level orientation and with the distal ends axle 27 of cylindrical body 36 coaxial cables, also comprise the adjusting conversion equipment 49 of clutch conversion between being contained in the orientation thickness regulates.Orientation coarse adjustment and orientation thin tuning part are by the orientation coarse adjustment knob 4 and 22 controls of orientation thin tuning knob that are located on the turntable body outer wall; The orientation coarse adjustment is made up of the bevel type gear of orientation coarse adjustment knob 4, coarse adjustment ratch 28, turning axle lower end 34 and pair of meshing; Direct drives platform turning axle 7 and rotation platforms 8 rotations of fixing with distal ends axle 7; Thin tuning worm screw 24 1 ends are being fixed the thin tuning gear on worm; Stretch out in the outer other ends of turntable body 3 fixing be orientation thin tuning knob 22, the rotational orientation thin tuning rotates the coaxial coupling worm-gear toothing wheels 30 that become normal engagement with the thin tuning gear on worm by orientation thin tuning knob 22; Control respectively 22 one-tenth of orientation coarse adjustment knob 4 and the orientation thin tuning knob of coarse adjustment ratch 28 and thin tuning worm screw 24 cylindrical and be located at the outer both sides of cylindrical body 36 just with operation.The shape of half Guitar voice box between the orientation thickness of adjusting assembly parts 50 is regulated behind the thickness adjusting conversion knob 41 shape Cheng Zhongfen of the adjusting conversion equipment 49 of conversion; It is to be in semi-surrounding on the whole on orientation coarse adjustment knob 4 that thickness adjusting conversion knob 41 is worked as the position that is under the thin tuning state, avoids producing misoperation to remind the operator.Said coaxial coupling worm-gear toothing wheels 30 by friction force and the distal ends axle 27 between being in contact with one another between end face 35 and eseparation ring 46 lower surfaces of cogging link one make coupling wheel group driven rotary platform do institute must trickle rotation, said friction force is located the compression elasticity of the conversion platen spring 48 between washer 38 and the eseparation ring 46 at the spring on distal ends axle 27 tops from locking.
53 one-tenth H types of the swing arm of described adjusting conversion equipment 49 topmosts; Its two tips away from swing arm rotating shaft 25 are separated platen 44 through separator disk register pin 47 and are linked with adjusting; The other end of the swing arm 53 of H type is with hinged with the lateral aperture that is fixed on the swing arm rotary shaft rack 43 on the turntable body 3 barrel-shaped cavity sidewalls; Thickness is regulated excentric shaft 45 and is positioned at the medium position under the swing arm 53; Regulate excentric shaft 45 through the thickness that is positioned at thickness adjusting rotating shaft 40 ends and rotate two tips of raising or putting down swing arm 53 greater than the anglec of rotation of 90 degree; When put down at 53 two tips of swing arm; The separator disk register pin 47 that is positioned at 53 two tips of swing arm drives eseparation ring 45 compressing and converting platen springs 48 and lifts adjusting separation platen 44 adjusting separation platen 44 is separated with the top 35 that cogs, and under said situation, can only carry out coarse adjustment.The thickness adjusting conversion knob 41 of control thickness adjustment state is positioned at outside the turntable body 3 and with orientation coarse adjustment knob 4 and is in on the side position; Thickness is regulated the shape of half Guitar voice box behind the shape Cheng Zhongfen of conversion knob 41 itself; It when being in the thin tuning state position that is in whole semi-surrounding coarse adjustment knob 4 in the orientation; When thickness adjusting conversion knob 41 is in the thin tuning state or says the thin tuning position; Thickness is regulated position that conversion knob 41 also becomes the semi-surrounding mode to cover orientation coarse adjustment knob 4 itself and is made the inconvenience in 40 fens of operative orientation coarse adjustment knob, and reminds the user can only carry out thin tuning this moment whereby.And under the thin tuning state since distal ends axle 27, coaxial coupling wheel group 30 and be integral with the thin tuning worm screw 24 of public worm gear tip edge 26 engagements of the coupling wheel of coaxial coupling wheel group 30 carry out coarse adjustment rotatable platform turning axle 27 this moment and also can not come the reverse thin tuning worm screw 24 that drives worm tooth by the worm gear tip edge of coaxial coupling wheel group 30 at all.
Or according to thickness adjusting conversion and control assembling legend partly shown in Figure 3; The orientation thickness of regulating assembly parts 50 is regulated that the eseparation ring 46 that links through separator disk register pin 47 and swing arm 53 in the conversion equipment 49 and the spacing ring it under 58 are limited in that jump ring circle 59 and adjusting separate between the platen 44 and is spacing by the jump ring circle 59 that is positioned at the jump ring groove outside the tubular shafts hole body 56; Jump ring circle 59 and regulate to separate and to be greater than the gross thickness of eseparation ring 46 and spacing ring 58 apart from size between the platen 44 wherein; Between keeping separately, certain free clearance is arranged; And spring location washer 38 and conversion platen spring 48 are limited between spacing ring 58 and the turning axle jump ring circle 60; The eseparation ring 46 that links with swing arm 53 drives when rising regulates that to separate platen 44 integral body up along distal ends axle 27; On the contrary; The eseparation ring 46 that links with swing arm 53 drives when descending to be regulated each parts integral body of separating on the platen 44 and descends along distal ends axle 27, separates the top that platen 44 bottom surfaces are pressed on coaxial coupling wheel group 30 thereby conversion platen spring 48 will be regulated through spacing ring 58 and the eseparation ring 46 under it.
Said coaxial coupling worm-gear toothing wheels 30 driven rotary platforms are done the spinning movement of the trickle angle that institute must adjusting; Coaxial coupling worm-gear toothing wheels 30 are close to together by the gear of two onesize sizes and are formed; Worm-gear toothing of the common formation of the tooth wheel rim of two gears; Diameter be not less than turntable body 3 barrel-shaped cavity diameter 70%; And become normal engagement with the thin tuning gear on worm; Being that two rims of gear of coaxial coupling worm-gear toothing wheels 30 are common forms a worm-gear toothing and is meshed with thin tuning worm screw 24 terminal shared thin tuning gears on worm; Coaxial coupling worm-gear toothing wheels 30 are positioned at the fan groove 31 that cogs, and and cog coaxial annular the through hole 29 and teeth of thin tuning gear on worm are clamped the state that is in no free clearance with the elastic force of reversing with respect to coaxial coupling worm-gear toothing wheels 30 axis between the lower gear 20 relatively-stationary lower gears rotation lock pins 19 of the 23 relatively-stationary rotation torsion-bar spring groups 21 and passing of cogging.It is that the cylindricality shank that leans on lower gear rotation lock pin 19 head-on becomes top to become excellent type torsion bar that the big damaged part of the inverted wedge shape of one-tenth makes rotation torsion-bar spring group 21 gradually to root except that the top to receive the lateral thrust of pointing to plane between two gears and cause in the place that two gears of coaxial coupling worm-gear toothing wheels 30 are close to together the thrust along axis; Lower gear rotation lock pin 19 is planted and is located at lower gear 20 in the position that is positioned at the coaxial annular through hole 29 that cogs; Lower gear rotation lock pin 19 diameters are bigger more than 50% than torsion-bar spring diameter, and lower gear rotation lock pin 19 begins to make not only have the elastic force of a reverse rotation to also have an elastic force component along the clamping of Gear axis after two gears of 19 pairs of coaxial coupling worm-gear toothing wheels 30 of torsion-bar spring and lower gear rotation lock pin rotate an angle to the bottom in the inverted wedge-like portion of head-on downcutting over against torsion-bar spring from the top.Coaxial coupling worm-gear toothing wheels 30 lean on the fan groove 31 that cogs in and and cog coaxial annular the through hole 29 and teeth clamping of thin tuning gear on worm is in the state of no free clearance with the elastic force of reversing with respect to coaxial coupling worm-gear toothing wheels 30 axis between the lower gear 20 relatively-stationary lower gears rotation lock pins 19 of the 23 relatively-stationary rotation torsion-bar spring groups 21 and passing of cogging.Described coaxial coupling worm-gear toothing wheels 30 rotate freely around distal ends axle 27, and are independent separately with distal ends axle 27.
The described fixed mount through hole 13 that vertically is provided with rectangle to the benchmark fixed mount 2 that is provided with, sample are fixed on the benchmark vertical plane 14 and are aligned by the benchmark incline 10 of fixed mount; Fixed mount through hole 13 is conveniently laid the sample of abnormity or protrusion bottom; The benchmark incline 10 of benchmark fixed mount 2 protrudes from the benchmark vertical plane 14 at place, and the section of benchmark incline 10 becomes rectangle, and the physical dimension of section is not less than 2 * 3 millimeters, and length is not less than 1/2 of fixed mount height.
The diameter of turntable body 3 is 120MM, highly is 73MM, and the diameter of rotary table base ring flange 7 is 185MM, and thickness is 14MM, the bottom surface of rotary table base ring flange 7 and turntable body 3 the bottom surface difference in height be 20MM; The diameter of the barrel-shaped space in the turntable body 3 is that 93MM, the degree of depth are 66MM; The diameter of coaxial coupling wheel group 30 is 80MM; Gross thickness is 21MM; The angle of 23 the cog fan groove 31 and the 29 pairs of central axis that cog of coaxial annular through hole that cog of cogging is 35 ± 10 degree, and cog fan groove 31 and the coaxial annular through hole 29 that cogs are more than 2 all by distributing around the central axis that cogs; The fan groove 31 that cogs is positioned at the 2R/3 place apart from the gear centre axis; Cog 23 radius yardstick of R representative, the width of the fan groove 31 that cogs have more about 20% than lower gear rotation lock pin 19 diameters, and the radial dimension of the fan groove 31 that cogs is about R/3; The degree of depth of fan groove 31 of cogging is 3/4 of 23 gauges that cog; The effective length size of planting the torsion-bar spring of establishing straight clavate on the inwall be cog fan groove 31 radial dimension about 9/10, the effective length and the diameter ratio of torsion-bar spring are about 6-8, the torsion-bar spring more than 2 has just constituted rotation torsion-bar spring group 21; Vertical and lower gear 20 upper surfaces of lower gear rotation lock pin 19 are planted and are established; Lower gear rotation lock pin 19 diameters are bigger more than 75% than torsion-bar spring diameter; Lower gear rotation lock pin 19 begin from the top to the bottom over against torsion-bar spring head-on cut next inverted wedge-like portion, not only have the elastic force of a reverse rotation to also have an elastic force component that steps up after two gears that make torsion-bar spring and lower gear rotate 19 pairs of coaxial coupling worm-gear toothing wheels 30 of lock pin rotate an angle along Gear axis.All adopt the alloyed copper made with the coaxial coupling worm-gear toothing wheels 30 the same torsion-bar spring groups 21 of rotating with lower gear rotation lock pin 19.
The annular fin that turntable top cover 51 leans on its underpart is to just keeping the coaxial state with turntable body 3 in the corresponding toroidal cavity of turntable body 3 upper openings, annular fin external diameter diameter is 106MM, and the fin sectional dimension is 5 * 3.5MM.
It should be noted last that above embodiment is only unrestricted in order to technical scheme of the present invention to be described.Although the present invention is specified with reference to embodiment; Those of ordinary skill in the art is to be understood that; Technical scheme of the present invention is made amendment or is equal to replacement, do not break away from the spirit and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (9)
1. a magnetic is tested turntable; Said turntable comprises turntable body (3) and rotation platform (8), and said turntable body (3) comprises rotary table base ring flange (7) and cylindrical body (36), and said cylindrical body (36) inside forms cylindrical cavity and is meshed with the rotation platform (8) that is positioned at its top; It is characterized in that
In the cavity of said cylindrical body (36), be provided with and regulate assembly parts (50), said adjusting assembly parts (50) comprise coarse adjustment unit and fine tuning unit and regulate conversion equipment (49);
Said coarse adjustment unit comprises coarse adjustment ratch (28); The turning axle conical gear (55) of the conical gear of the end of described coarse adjustment ratch (28) and distal ends axle (27) lower end is meshing with each other, and realizes rotation platform (8) orientation coarse adjustment through the orientation coarse adjustment knob (4) of coarse adjustment ratch (28) end;
Said fine tuning unit comprises thin tuning worm screw (24) and coaxial coupling worm-gear toothing wheels (30); Said thin tuning worm screw (24) is terminal to be meshed with the gear of a thin tuning gear on worm; Said coaxial coupling worm-gear toothing wheels (30) are cogging (23) and the coaxial worm-gear toothing of being close to the common tooth wheel rim of composition of lower gear (20) with diameter; Said worm-gear toothing is meshed with the worm screw of thin tuning gear on worm, when said thin tuning worm screw (24) is rotated, drives the rotation of thin tuning gear on worm; Cause that the coaxial coupling worm-gear toothing wheels (30) that are engaged with rotate; Described coaxial coupling worm-gear toothing wheels (30) make itself and distal ends axle (27) binding be one through the friction force that the end face that cogs (35) separates with adjusting between platen (44) lower surface, and transmission of power to distal ends axle (27), is realized rotation platform (8) orientation fine tuning;
Said adjusting conversion equipment (49) comprises that thickness is regulated conversion knob (41), thickness is regulated rotating shaft (40), thickness adjusting excentric shaft (45), swing arm rotary shaft rack (43), swing arm (53), spring location washer (38), conversion platen spring (48), eseparation ring (46), regulated and separate platen (44) and separator disk register pin (47); Wherein, Thickness is regulated rotating shaft (40) and thickness, and to regulate excentric shaft (45) be two sections parallel shaft parts that join of coaxial line not; Axis hole one outer end that the turntable sidewall is passed in thickness adjusting rotating shaft (40) is fixed with thickness adjusting conversion knob (41); Be positioned at the inner other end of cylindrical cavity and thickness adjusting parallel joining of excentric shaft (45), regulate excentric shaft (45) is regulated rotating shaft (40) around thickness axis rotation and be positioned at the inner thickness of turntable cylindrical cavity fully;
The swing arm (53) of described adjusting conversion equipment (49) topmost becomes the H type; Its two tip is separated platen (44) through separator disk register pin (47) and adjusting and is connected; The other end is hinged with the lateral aperture that is fixed on the swing arm rotary shaft rack (43) on the inner barrel-shaped cavity sidewalls of turntable body (3); Thickness is regulated excentric shaft (45) and is positioned at the medium position under the swing arm (53); When thickness adjusting excentric shaft (45) is regulated the axis rotation of rotating shaft (40) around thickness; Come jack-up or put down the swing arm (53) that is in contact with it in the eccentric rotary of the anglec of rotation that is equal to or greater than 90 degree through regulating the wrong mutually thickness adjusting excentric shaft (45) of rotating shaft (40) axis with thickness; Thereby two tips that drive swing arm (53) are raised or are put down with bigger amplitude of fluctuation; When put down at two tips of said swing arm (53), the separator disk register pin (47) that is positioned at (53) two tips of swing arm drove eseparation ring (45) compressing and converting platen spring (48) and lifts adjusting separation platen (44) adjusting separation platen (44) is separated with the end face that cogs (35), under said situation, can only carry out coarse adjustment;
The thickness of said control thickness adjustment state is regulated conversion knob (41) and is sheathed on the installation shaft of thickness adjusting rotating shaft (40) end; Be positioned at turntable body (3) outside and be in same side position with orientation coarse adjustment knob (4); Said thickness is regulated conversion knob (41) and is also comprised top, the outside, the rotatable coarse adjustment knob (42) that is arranged at orientation coarse adjustment knob (4); During fine tuning; Coarse adjustment knob (42) rotated coarse adjustment knob (4) is covered, under this state, can only carry out fine tuning.
2. magnetic test turntable according to claim 1; It is characterized in that; The swing arm of said adjusting conversion equipment (49) is provided with thickness and regulates the parallel thickness adjusting excentric shaft (45) of rotating shaft (40); The position that is lower than thickness adjusting rotating shaft (40) axis that the axis of said thickness adjusting excentric shaft (45) turns to; When carrying out the coarse adjustment state; The crowngear of orientation coarse adjustment knob (4) through coarse adjustment ratch (28) end be fixed on turning axle conical gear (55) on the turning axle lower end (34) and be meshed and drive distal ends axle (27) rotation, thickness was regulated excentric shaft (45) and was regulated rotating shaft (40) with thickness and rotate to be in and lift swing arm (53) and regulate the position of separating platen (44) this moment, distal ends axle (27) is in released state with coaxial coupling wheel group (30).
3. magnetic test turntable according to claim 1; It is characterized in that; Said cogging (23) is provided with fan groove that cogs (31) and the axisymmetric with it coaxial annular through hole (29) that cogs; The said fan groove that cogs (31) is provided with hole radially on the inwall near the central gear axis hole; And in described each hole, plant the torsion-bar spring of establishing a straight-bar shape, plant corresponding to the position of the coaxial annular through hole (29) that cogs on said lower gear (20) upper surface and be provided with lower gear rotation lock pin (19); Said lower gear rotation lock pin (19) contacts with the free end of the torsion-bar spring of straight-bar shape; Wherein lower gear rotation lock pin (19) and the surface of contact of the torsion-bar spring of straight-bar shape are that a cylindricality shank at cylindrical lower gear rotation lock pin (19) is head-on located into the top and become the big damaged part of the inverted wedge shape of one-tenth gradually to root and make the excellent type torsion bar free end contact point that rotates torsion-bar spring group (21) receive a sensing and the damaged perpendicular elastic thrust in plane of wedge shape; When to be that the last lower gear of said coupling worm-gear toothing wheels (30) is coaxial relatively reverse do angular displacement; Because the free-ended barrier effect of the torsion-bar spring to being contacted of lower gear rotation lock pin (19) makes the torsion-bar spring generation elastic deformation of straight-bar shape; And produce the elastic force opposite between the lower gear rotation lock pin (19) with the angular displacement torsional direction; And because the big end down oblique wedge shape surface of contact on the columniform lower gear rotation lock pin (19) pair acts on the component that makes torsion-bar spring also receive a sensing lower gear direction simultaneously with free-ended being tilted to down of torsion-bar spring; The force action of these two power be make coaxial coupling worm-gear toothing wheels (30) cog and lower gear has the trend reversed of opposing angular displacement to tend to adjacent to each other with both, elastic force makes cogging of coaxial coupling worm-gear toothing wheels (30) and lower gear clamps the state that is in no free clearance with the teeth of thin tuning gear on worm.
4. magnetic test turntable according to claim 3 is characterized in that the length of said torsion-bar spring exposed portions serve is less than the radial dimension of the fan groove that cogs (31); The degree of depth of the said fan groove that cogs (31) accounts for more than 2/3 of (23) thickness that cogs, and greater than 10 degree, the said coaxial annular through hole (29) that cogs has subtended angle to the fan groove that cogs (31) to gear centre axis subtended angle; Planting the lower gear rotation lock pin (19) established on the said lower gear (20) begins to have cut one to the bottom from the top and becomes the damaged part of the inverted wedge shape of great achievement from top to bottom gradually head-on going up over against the cylindricality shank of the lower gear rotation lock pin (19) of torsion-bar spring; The damaged maximum ga(u)ge of wedge shape rotates 1/3 of lock pin (19) diameter greater than lower gear, and the plane at the damaged part of wedge shape place and the angle between the lower gear rotation lock pin (19) are greater than 12 degree.
5. magnetic test turntable according to claim 1; It is characterized in that; It is disc that described adjusting separates platen (44); Wherein face is the tubular shafts hole body (56) of protrusion in the heart, and tubular shafts hole body (56) outside is provided with in the axis hole of fluting, tubular shafts hole body (56) of the spring coil that is installed (59) has axial keyway, and the bottom surface of regulating the disc part of separating platen (44) is plane and end face is tapered; Said eseparation ring (46) is positioned at the outside of tubular shafts hole body (56); Eseparation ring (46) is the dish type at the no end; The diameter of bore that is positioned at the bottom is slightly larger than tubular shafts hole body (56) external diameter; Jump ring circle (59) and the spacing ring under it (58) by in the fluting are spacing, and spacing ring (58) has lower friction factor, and eseparation ring (46) top is provided with two through holes in order to separator disk register pin (47) to be installed to two tips of swing arm (53) along ring external diameter endless belt, top; Whole adjusting assembly parts (50) be applied in the distal ends axle this part is spacing by turning axle jump ring circle (60) institute that is positioned at turning axle jump ring groove (57).
6. magnetic test turntable according to claim 1; It is characterized in that; The inner space of described turntable body (3) is the open barrel-shaped cavity of base seal, top, barrel-shaped sidewall be provided with swing arm rotary shaft rack (43) and pass 3 levels that coarse adjustment ratch (28), thickness regulate rotating shaft (40) and thin tuning worm screw (24) to jack; Pedestal ring flange (7) that turntable body (3) is outer and cylindrical body (36) coaxial cable are looped around the medium position of cylindrical body (36).
7. magnetic test turntable according to claim 1 is characterized in that described rotation platform (8) is positioned on the turntable body (3),
Rotation platform (8) comprises turntable top cover (51) and is vertically set on the benchmark fixed mount (2) on the circular arc;
Turntable top cover (51) side bottom of said truncated cone-shaped has one 360 degree angle of circumference scales (17); The taper angle of the truncated cone-shaped side of turntable top cover (51) is 6530 degree; The diameter of the turntable top cover (51) of said truncated cone-shaped is 10～15 with the thickness ratio; Turntable top cover (51) is provided with circular inserting groove (37), benchmaring window (12) and turntable top cover mounting hole (18), and turntable top cover (51) bottom is provided with the annular groove corresponding annular fin coaxial with turntable body (3) top;
Described benchmark fixed mount (2) is provided with the reference field (14) perpendicular to turntable top cover (51); Said reference field (14) is provided with the fixed mount through hole (13) of square-section; One side of said reference field is provided with vertical with it benchmark incline (10); The length of said benchmark incline (10) is greater than 40% of benchmark fixed mount (2) height; The section of benchmark incline (10) becomes rectangle, and the cross-sectional dimension of benchmark incline (10) section is not less than 6% of benchmark fixed mount (2) cross-sectional dimension, is used for fixing specimen.
8. magnetic according to claim 1 test turntable is characterized in that, the top of said distal ends axle (27) be provided with tubular shafts hole body (56) in the axial keyway of corresponding keyway same widths.
9. magnetic test turntable according to claim 1; It is characterized in that; The edge end face of described pedestal ring flange (7) is provided with 2 mutually perpendicular horizontal reference appearance of orientation (32) and around some adjusting leg screw rod screws of turntable body (3); The leg screw rod guard shield (39) that high-precision adjusting leg screw rod (11) and top are provided with is set in the screw; Said leg screw rod guard shield (39) lower edge is pressed in the annular groove around the leg screw rod screw; Regulating leg screw rod (11) is anti-the first half that tunes joint pin (5); The anti-Lower Half that tunes joint pin (5) is discoidal height adjustment disk (52) and is positioned at the semisphere footing under the height adjustment disk (52), is provided with on the height adjustment disk (52) and applies the anti-sliding shim (9) that revolves the anti-spinning spring (6) of the required tension force of self-locking and be positioned at the low ratio of slip at anti-spinning spring (6) two ends.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110322603 CN102426341B (en) | 2011-10-21 | 2011-10-21 | Magnetic test rotary table |
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| CN 201110322603 CN102426341B (en) | 2011-10-21 | 2011-10-21 | Magnetic test rotary table |
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| CN102426341B CN102426341B (en) | 2013-09-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105183000A (en) * | 2015-07-22 | 2015-12-23 | 杨斌堂 | Swing and rotation multi-degree-of-freedom motion generating platform |
| CN106812666A (en) * | 2016-12-30 | 2017-06-09 | 浙江工业大学 | Wind-force swings energy collecting device |
| CN106997211A (en) * | 2017-05-16 | 2017-08-01 | 中国地震局工程力学研究所 | A kind of sensor orientation automatic regulating apparatus |
| CN108296803A (en) * | 2018-03-21 | 2018-07-20 | 长沙哈量凯帅精密机械有限公司 | A kind of device for CNC hypoid and spiral machine tool B axle turntable numerical control angular displacement |
| CN109029324A (en) * | 2018-07-06 | 2018-12-18 | 姹や匠 | A kind of steel plate thickness detection device with cleaning device |
| RU189959U1 (en) * | 2018-08-03 | 2019-06-13 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" | Globe Manipulator |
| CN111536142A (en) * | 2019-12-20 | 2020-08-14 | 中国航空工业集团公司北京航空精密机械研究所 | Rotary table angle limiting device and rotary table |
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| CN105183000B (en) * | 2015-07-22 | 2018-10-12 | 杨斌堂 | Rotation moves multifreedom motion and platform occurs |
| CN105183000A (en) * | 2015-07-22 | 2015-12-23 | 杨斌堂 | Swing and rotation multi-degree-of-freedom motion generating platform |
| CN106812666A (en) * | 2016-12-30 | 2017-06-09 | 浙江工业大学 | Wind-force swings energy collecting device |
| CN106812666B (en) * | 2016-12-30 | 2018-11-20 | 浙江工业大学 | Wind-force swings energy collecting device |
| CN106997211A (en) * | 2017-05-16 | 2017-08-01 | 中国地震局工程力学研究所 | A kind of sensor orientation automatic regulating apparatus |
| CN108296803B (en) * | 2018-03-21 | 2023-11-28 | 长沙津一凯帅精密机械有限公司 | Device for numerical control angular displacement of B-axis turntable of numerical control spiral bevel gear machine tool |
| CN108296803A (en) * | 2018-03-21 | 2018-07-20 | 长沙哈量凯帅精密机械有限公司 | A kind of device for CNC hypoid and spiral machine tool B axle turntable numerical control angular displacement |
| CN109029324A (en) * | 2018-07-06 | 2018-12-18 | 姹や匠 | A kind of steel plate thickness detection device with cleaning device |
| RU189959U1 (en) * | 2018-08-03 | 2019-06-13 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" | Globe Manipulator |
| CN111536142A (en) * | 2019-12-20 | 2020-08-14 | 中国航空工业集团公司北京航空精密机械研究所 | Rotary table angle limiting device and rotary table |
| CN111536142B (en) * | 2019-12-20 | 2021-05-07 | 中国航空工业集团公司北京航空精密机械研究所 | Rotary table angle limiting device and rotary table |
| CN112080944A (en) * | 2020-09-15 | 2020-12-15 | 安徽索亚装饰材料有限公司 | Polishing and automatic discharging integrated machine for leather carving soft package |
| CN112077723B (en) * | 2020-09-15 | 2021-11-19 | 山东凯迪威家具有限公司 | Soft packet burnishing device of skin carving |
| CN112080944B (en) * | 2020-09-15 | 2022-12-13 | 芜湖格蓝电子科技有限公司 | Polishing and automatic discharging integrated machine for leather carving soft package |
| CN112077723A (en) * | 2020-09-15 | 2020-12-15 | 安徽索亚装饰材料有限公司 | Soft packet burnishing device of skin carving |
| CN114993142A (en) * | 2022-06-30 | 2022-09-02 | 奇瑞汽车股份有限公司 | Automobile ground clearance measuring tool and measuring method |
| CN114993142B (en) * | 2022-06-30 | 2023-10-31 | 奇瑞汽车股份有限公司 | Automobile ground clearance measuring tool and measuring method |
| CN116995405A (en) * | 2023-09-25 | 2023-11-03 | 成都天锐星通科技有限公司 | Antenna mounting platform and communication equipment |
| CN116995405B (en) * | 2023-09-25 | 2023-12-29 | 成都天锐星通科技有限公司 | Antenna mounting platform and communication equipment |
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Address after: 100190 No. two south of Zhongguancun, Haidian District, Beijing 1 Patentee after: NATIONAL SPACE SCIENCE CENTER, CAS Address before: 100190 No. two south of Zhongguancun, Haidian District, Beijing 1 Patentee before: Space Science & Applied Research Centre, Chinese Academy of Sciences |