CN102928158A - Static balance testing instrument based on air flotation bearing - Google Patents
Static balance testing instrument based on air flotation bearing Download PDFInfo
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- CN102928158A CN102928158A CN2012104138505A CN201210413850A CN102928158A CN 102928158 A CN102928158 A CN 102928158A CN 2012104138505 A CN2012104138505 A CN 2012104138505A CN 201210413850 A CN201210413850 A CN 201210413850A CN 102928158 A CN102928158 A CN 102928158A
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Abstract
The invention provides a static balance testing instrument based on an air flotation bearing. The static balance testing instrument comprises a mounting flat board, brackets, air flotation bearings, connection pieces and movement mechanisms, wherein an upper plane and a lower plane of the mounting flat board are planes; the two brackets are located above the mounting flat board; the moving mechanism is arranged between each bracket and the mounting flat board; the air flotation bearing comprises a spherical bowl and a ball; the spherical bowls of the two air floatation bearings are respectively fixedly arranged on the two brackets; the spherical bowls and the brackets are connected to be a whole body; the balls of the two air flotation bearings are provided with through holes passing through a ball center; the both ends of a piece to be measured are fixed with the connection pieces; the two connection pieces respectively penetrate through the through holes on the balls of the air flotation bearings; the piece to be measured, the connection pieces and the balls of the air floatation bearings are connected to be the whole body; and the moving mechanism can be used for horizontally moving the whole body formed by connecting the spherical bowls of the air flotation bearings and the brackets on the upper surface of the mounting flat board, so that the balls of the air flotation bearings are located above the spherical bowls. Compared with the prior art, the measurement precision of the static balance testing instrument can be greatly improved.
Description
Technical field
The present invention relates to a kind of static balancing tester based on air-bearing.
Background technology
Inertial Platform System is the core that armament systems are realized precision strike as the critical component of strategic missile control system, and its combination property also is the gordian technique place of realizing maneuverability, rapidity, the level of IT application and the good usability of armament systems.The poor large generation heat of torque motor power consumption that not only causes of platform static equilibrium, affect platform thermal equilibrium and then affect the platform precision, the more important thing is that in the body flight course, amount of unbalance can produce disturbance torque at reference axis, form dynamic error, final impact flight drop point precision.The previous generation strategic arms just have portioned product with platform because the overproof rebalancing assembling of doing over again of dynamic error test causes the loss of funds, progress.Traditional static equilibrium method of testing is to be measured of platform component etc. to be hung counterweight detect after the edge of a knife supports.Not only friction force is large but also the quick abrasion life-span is short for the edge of a knife in this method, affects statically balanced measuring accuracy.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiencies in the prior art, a kind of static balancing tester based on air-bearing is provided, can be greatly improved long service life so that treat the static equilibrium measuring accuracy of surveying part, simple to operation, improved efficient and the precision of test.
Technical solution of the present invention:
A kind of static balancing tester based on air-bearing comprises: flat board, support, air-bearing, web member and travel mechanism are installed;
Dull and stereotyped upper and lower surface is installed is the plane, two supports are all having a travel mechanism above the installation flat board and between each support and the installation flat board, air-bearing comprises ball bowl and ball two parts, the ball bowl of two air-bearings partly is separately fixed on two supports, and ball bowl part is connected as a whole with support; The ball portion of two air-bearings all was equipped with the through hole of the centre of sphere, to be measured two ends are fixed with web member, and two web members pass respectively two through holes on the described air-bearing ball portion, and to be measured, web member are connected ball portion and are connected as a whole with air-bearing;
Travel mechanism can make the ball bowl part of air-bearing and integral body that support connects into move horizontally dull and stereotyped upper surface is installed so that the ball portion of air-bearing be positioned at ball bowl part directly over;
The axis of the through hole on the ball portion of described air-bearing is by the centre of sphere of ball portion.
Two web members are coaxial.
Described static balancing tester based on air-bearing also comprises the amount of unbalance proving installation, and the amount of unbalance proving installation is installed on the web member, is used for measuring to be measured amount of unbalance.
Described amount of unbalance proving installation can be counterweight or torque tester.
Described travel mechanism is guide rail or floating cushion.
The present invention's advantage compared with prior art is:
The present invention is applicable to static equilibrium test and the compensation of each assembly in the platform assembling process, can reach very high measuring accuracy, compare with traditional edge of a knife support pattern, eliminate web member and directly contacted the friction force of bringing with the edge of a knife, avoided simultaneously edge of a knife defective easy to wear, greatly improved measuring accuracy, long service life.
Description of drawings
Fig. 1 is the schematic diagram of static balancing tester of the present invention;
Component diagram when Fig. 2 is instrument for testing precision accuracy of detection of the present invention, wherein Fig. 2 a is front view, Fig. 2 b is side view;
Embodiment
The invention provides a kind of static balancing tester based on air-bearing, as shown in Figure 1, comprising: flat board 1, support 2, air-bearing 3, web member 4 and travel mechanism 7 are installed;
The upper and lower surface that flat board 1 is installed is the plane, and (surface should be as far as possible smooth, such as marble surface), two supports 2 are all having a travel mechanism 7 above the installation dull and stereotyped 1 and between each support 2 and the installation dull and stereotyped 1, air-bearing 3 comprises ball bowl and ball two parts, the ball bowl of two air-bearings 3 partly is separately fixed on two supports 2, and ball bowl part is connected as a whole with support; As shown in Figure 2, the ball portion of two air-bearings 3 all was equipped with the through hole of the centre of sphere, the axis of through hole is by the centre of sphere of ball portion, to be measured 8 two ends are fixed with web member 4, and two web members 4 pass respectively two through holes on described air-bearing 3 ball portion, the ball portion that to be measured 8, web member 4 are connected with air-bearing connects as a whole, and two web members 4 are coaxial.
Static balancing tester based on air-bearing also comprises amount of unbalance proving installation 6, and amount of unbalance proving installation 6 is installed on the web member 4, is used for measuring to be measured 8 amount of unbalance.Amount of unbalance proving installation 6 can be counterweight or torque tester.
During static balancing tester work of the present invention, installing dull and stereotyped 1 should be positioned on the surface level, outside gases at high pressure are blown to the ball portion of its top by the ball bowl part of air-bearing 3, so that ball portion suspends, then be connected as a whole web member 4 and to be measured 8 with ball portion, suspend too.For the ball portion that makes air-bearing 3 be positioned at ball bowl part directly over, then need to make support and ball bowl part of horizontal to move, mobile device 7 can be guide rail, so that support and ball bowl part can move horizontally, mobile device 7 can also be floating cushion, when adjusting, gases at high pressure are inflated in floating cushion, hole on the floating cushion is to dull and stereotyped 1 gas jet is installed, so that support and ball bowl partial suspended, separate with installation dull and stereotyped 1, so that support and ball bowl part can move horizontally the position in installation dull and stereotyped 1.After all adjusting, can record to be measured 8 amount of unbalance by amount of unbalance proving installation 6.
The below take install flat board as the marble flat board as example, provide and use tester of the present invention to measure to be measured statically balanced step:
(1) uses alcohol wash clean in marble dull and stereotyped 1, and be adjusted to horizontality;
(2) floating cushion 7 with two ends is placed on the marble flat board 1, and pore one end is downward, and is installed on respectively support 2 times separately, connects with screw fastening;
(3) the ball bowl of two the spherical air-bearing bearings 3 in two ends is placed on separately the support 2, adjusts and make ball bowl end face and floating cushion bottom surface (install dull and stereotyped, be the marble flat board in the present embodiment) parallel, and connect with screw fastening;
(4) web member 4 is installed on the ball of spherical air-bearing bearing 3, ball has mesopore, such as Fig. 2, web member 4 can be penetrated in the hole, and guarantee the axis process centre of sphere of web member 4;
(5) adjust the coaxial and axial connecting line of the axial connecting line make two ends spherical air-bearing bearing 3 and web member 4 and be in horizontality;
(6) connect clean gas source for each airfloat equipment, and reach the requirement force value, must guarantee that source of the gas is clean, avoid stopping up the airfloat equipment pore,
(7) to be measured is connected with web member 4;
(8) utilize auxiliary installing mechanism 5 that the integral body that the ball portion of to be measured, web member 4 and spherical air-bearing bearing 3 forms is sling, hang on the ball bowl top of spherical air-bearing bearing 3, the movable air-float pad position guarantees the centering of ball and ball bowl, avoid colliding the damage that causes ball and ball bowl, affect measuring accuracy;
(9) after placing steadily, the source of the gas cut-out with floating cushion 7 drops on the marble flat board 1 floating cushion 7, and the source of the gas of spherical air-bearing bearing 3 still keeps; Auxiliary installing mechanism 5 also disconnects with the integral body of slinging, and at this moment, described integrated suspension is in ball bowl top.At this moment, to be measured can rotate freely around the centre of sphere line of spherical air-bearing bearing 3;
(10) detect the amount of unbalance of part to be measured by tester 6, tester can select torque tester or counterweight to realize.
Wherein, spherical air-bearing bearing 3 should guarantee suitable load-bearing capacity and rigidity, does not make the test factors of instability because self reason produces.
Claims (6)
1. the static balancing tester based on air-bearing is characterized in that comprising: dull and stereotyped (1), support (2), air-bearing (3), web member (4) and travel mechanism (7) are installed;
The upper and lower surface that dull and stereotyped (1) is installed is the plane, two supports (2) are positioned at top and each support (2) that dull and stereotyped (1) is installed and install between dull and stereotyped (1) all a travel mechanism (7), air-bearing (3) comprises ball bowl and ball two parts, the ball bowl of two air-bearings (3) partly is separately fixed on two supports (2), and ball bowl part is connected as a whole with support; The ball portion of two air-bearings (3) all was equipped with the through hole of the centre of sphere, the two ends of to be measured (8) are fixed with web member (4), and two web members (4) pass respectively the through hole on two described air-bearings (3) ball portion, and to be measured (8), web member (4) are connected 3 with air-bearing) ball portion connect as a whole;
Travel mechanism (7) can make the ball bowl part of air-bearing (3) and integral body that support (2) connects into move horizontally at the upper surface that dull and stereotyped (1) is installed so that the ball portion of air-bearing (3) be positioned at ball bowl part directly over.
2. a kind of static balancing tester based on air-bearing according to claim 1, it is characterized in that: the axis of the through hole on the ball portion of described air-bearing (3) is by the centre of sphere of ball portion.
3. a kind of static balancing tester based on air-bearing according to claim 1, it is characterized in that: two web members (4) are coaxial.
4. a kind of static balancing tester based on air-bearing according to claim 1, it is characterized in that: described static balancing tester based on air-bearing also comprises amount of unbalance proving installation (6), amount of unbalance proving installation (6) is installed on the web member (4), is used for measuring the amount of unbalance of to be measured (8).
5. a kind of static balancing tester based on air-bearing according to claim 4, it is characterized in that: described amount of unbalance proving installation (6) can be counterweight or torque tester.
6. a kind of static balancing tester based on air-bearing according to claim 4 is characterized in that: described travel mechanism (7) is guide rail or floating cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210413850.5A CN102928158B (en) | 2012-10-24 | 2012-10-24 | A kind of static balancing tester based on air-bearing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210413850.5A CN102928158B (en) | 2012-10-24 | 2012-10-24 | A kind of static balancing tester based on air-bearing |
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| CN102928158A true CN102928158A (en) | 2013-02-13 |
| CN102928158B CN102928158B (en) | 2015-09-23 |
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| CN201210413850.5A Active CN102928158B (en) | 2012-10-24 | 2012-10-24 | A kind of static balancing tester based on air-bearing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968982A (en) * | 2014-05-09 | 2014-08-06 | 中国航天空气动力技术研究院 | Low damping rolling moment measuring device based on gas bearing |
| CN104251755A (en) * | 2014-09-24 | 2014-12-31 | 中国特种设备检测研究院 | Large-capacity gas cylinder torque testing device |
| CN107314042A (en) * | 2017-07-25 | 2017-11-03 | 西安工业大学 | A kind of underwater simulation turns round test device |
| CN110567641A (en) * | 2019-08-15 | 2019-12-13 | 北京航天控制仪器研究所 | isomer radial static balance adjusting method and device |
| CN114294330A (en) * | 2021-12-30 | 2022-04-08 | 哈尔滨工业大学 | High-precision rotating ring-shaped part inner supporting air-floating type static balancing device |
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| US3499136A (en) * | 1966-11-25 | 1970-03-03 | Garrett Corp | Balancing machine |
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| JPH08189873A (en) * | 1995-01-06 | 1996-07-23 | Nippon Seiko Kk | Method and device for measuring static unbalance of ball |
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| CN201013753Y (en) * | 2007-03-03 | 2008-01-30 | 大连海事大学 | High pressure big cornerite running-in type porous reduce section closed type air-float ball bearing |
| CN201225947Y (en) * | 2008-07-02 | 2009-04-22 | 天津修船技术研究所 | Detector for static balance of large-sized non-shaft laser centering rotary body |
| CN201306383Y (en) * | 2008-10-31 | 2009-09-09 | 西安工业大学 | High rigidity static pressurized gas lubricated journal bearing |
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| US3499136A (en) * | 1966-11-25 | 1970-03-03 | Garrett Corp | Balancing machine |
| US4063462A (en) * | 1975-01-20 | 1977-12-20 | Gebr. Hofmann Kg | Apparatus for the determination of the static unbalance of a test body |
| JPH08189873A (en) * | 1995-01-06 | 1996-07-23 | Nippon Seiko Kk | Method and device for measuring static unbalance of ball |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968982A (en) * | 2014-05-09 | 2014-08-06 | 中国航天空气动力技术研究院 | Low damping rolling moment measuring device based on gas bearing |
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| CN104251755A (en) * | 2014-09-24 | 2014-12-31 | 中国特种设备检测研究院 | Large-capacity gas cylinder torque testing device |
| CN104251755B (en) * | 2014-09-24 | 2017-01-18 | 中国特种设备检测研究院 | Large-capacity gas cylinder torque testing device |
| CN107314042A (en) * | 2017-07-25 | 2017-11-03 | 西安工业大学 | A kind of underwater simulation turns round test device |
| CN110567641A (en) * | 2019-08-15 | 2019-12-13 | 北京航天控制仪器研究所 | isomer radial static balance adjusting method and device |
| CN110567641B (en) * | 2019-08-15 | 2021-07-13 | 北京航天控制仪器研究所 | Isomer radial static balance adjusting method and device |
| CN114294330A (en) * | 2021-12-30 | 2022-04-08 | 哈尔滨工业大学 | High-precision rotating ring-shaped part inner supporting air-floating type static balancing device |
| CN114294330B (en) * | 2021-12-30 | 2022-09-23 | 哈尔滨工业大学 | High-precision rotating ring-shaped part inner supporting air-floating type static balancing device |
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| CN102928158B (en) | 2015-09-23 |
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