CN104764551A - Dynamic unbalance impulse testing device - Google Patents
Dynamic unbalance impulse testing device Download PDFInfo
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- CN104764551A CN104764551A CN201510176766.XA CN201510176766A CN104764551A CN 104764551 A CN104764551 A CN 104764551A CN 201510176766 A CN201510176766 A CN 201510176766A CN 104764551 A CN104764551 A CN 104764551A
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- frame part
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- web joint
- semicircular ring
- proving installation
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Abstract
The invention discloses a dynamic unbalance impulse testing device which comprises a movable frame part, a fixed frame part and a data collecting and processing device. The movable frame part comprises a locating plate, two guide rails, a firing mechanism, a displacement sensor, an acceleration sensor, a suspension type magnetic block, a locking device, a fixing mechanism, a clamp ring, an upper flat plate, a locating rod, a clamp hoop, a connecting plate, a lower flat plate, a sliding device and a stand column. The dynamic unbalance impulse testing device avoids the situation that dynamic unbalance impulse can not be tested directly, reliably, stably, easily and conveniently in the prior art; a system axial line and a movable frame part axial line are the same one, so torque resistance generated due to the fact that the system axial line and the movable frame part axial line are not the same one is reduced.
Description
Technical field
The invention belongs to momentum measuring technology, particularly a kind of unbalance dynamic momentum proving installation.
Background technology
The test of tradition momentum adopts pendulum method, and process means fall behind, and equipment is complicated, easily disturbs by external condition.Present momentum test is changing towards guide rail method, but now common guide rail method proving installation, structure is simple, unstable, is vulnerable to various interference.For this reason, have developed the momentum proving installation of some high precision, high stability in prior art." a kind of proving installation of uneven momentum " that patent (201110160628.4) as Beijing Mechanical Equipment Research Institute proposes, this technical scheme utilizes guide rail method equally, surveying method of testing suffered by launching tube for impacting arrangement by sensor, is non-immediate measuring equipment.Shortcoming needs more supporting measuring equipment, complex structure, and device data process is loaded down with trivial details, and precision is not high, the numerical value of test accumulation, and integration obtains the uneven momentum of launching tube.Although this technical scheme can obtain the stressed momentum of launching tube in theory, exist obviously not enough: 1. adopt rolling bearing to contact with launching tube on-fixed, during rotation, along with launching tube weight increases, suffered resistance obviously increases; Have Relative friction between launching tube and rolling bearing, these 2 cause surveyed error very large simultaneously.2. along with launching tube moves, its gravity motion, with two rolling bearing centers not on the same axis, increase error further.3. structure is simple, stability and exploitativeness poor.
" a kind of rocket firework launches the proving installation of momentum " that the patent (201320792133.8) of Liu Jingbiao proposes, this technical scheme utilizes pressure transducer dynamically to catch emissivity situation of change in rocket firework emission process, calculate rocket firework momentum situation of change, but exist obviously not enough: 1. blast produces a large amount of light and heat, larger to the Acquisition Error of its data; 2. for avoiding outburst, inside unloading blast hole, also reducing the precision of device simultaneously.
" a kind of momentum method of testing based on optical sensing and device " that the patent (201110299654.5) of Xibei Nuclear Techn Inst proposes, guide rail is placed the mass that there is linear grating side, mass moves under Impulse, measure the reflective light intensity-time curve of linear grating, calculate momentum parameter.This metering system has the following disadvantages: the gas etc. that 1. arm discharge produces affects device optical measurement; 2. for arm discharge device, obtain momentum by proof mass, increase test error.
" a kind of micro impulse proving installation " that the patent (201010547069.8) of BJ University of Aeronautics & Astronautics proposes, this technical scheme utilizes thruster generation micro impulse that moving frame is swung, the displacement signal of moving frame swing is obtained by displacement transducer, obtain swinging maximum position, obtain the relation of moving frame yaw displacement and electromagnetic force by electromagnetic calibration mechanism and obtain suffered micro impulse hunting period.Have the following disadvantages: 1. arm discharge device quality is overweight, large gravity is produced to single side-sway arm, there is error; 2. can not meet arm discharge produce the large test environment of momentum.
Summary of the invention
The object of the present invention is to provide a kind ofly have that measuring accuracy is high, simple and convenient operation and maintenance, safe and reliable and stable performance the device of unbalance dynamic momentum test.
The technical solution realizing the object of the invention is: a kind of proving installation of unbalance dynamic momentum, comprise moving frame part, determine frame part, data acquisition processing device, wherein moving frame part comprises location-plate, two guide rails, firing lock, displacement transducer, acceleration transducer, floated magnetic patch, locking device, fixed mechanism, snap ring, upper flat plate, backstay, clip, web joint, lower flat board, carriage and columns;
Two described guide rail parallels, and be fixedly installed on location-plate by column, measured object is fixed on front fixed mechanism and rear fixed mechanism by front snap ring, rear snap ring; Upper flat plate both sides respectively connect one group of carriage, and two groups of carriages, respectively at each self-corresponding slide on rails, are fixedly connected with clip by backstay between two groups of carriages; Carriage is locked on guide rail by locking device, realizes the fixing of moving frame part; Firing lock is fixedly connected on upper flat plate; Acceleration transducer and floated magnetic patch are fixed on upper flat plate by web joint; Displacement transducer is fixed on lower flat board; Acceleration transducer and displacement transducer connection data acquisition processing device.
The present invention compared with prior art, its remarkable advantage: (1) present invention, avoiding present stage can not directly, the situation of reliable, stable, easy test unbalance dynamic momentum.(2) system axis and moving frame segment axis are same axis, decrease the moment resistance do not produced in same axis.(3) location-plate hydrous water level, makes location-plate be horizontal, and by forward and backward snap ring in adjustment moving frame part, changes moving frame part snap ring internal diameter and spacing, makes to the present invention is directed to different bore product and has flexible adjustable characteristic.(4) by location-plate platform as reference system, make the complete level of its above moving frame part in location-plate platform, there is stable, reliable characteristic.(5) have independent firing lock, and firing lock position level can be moved in trigger shaft; In firing lock, electromagnet all-metal is closed, and does not produce interference to other electronic equipment; Firing lock exports as safety low-voltage, and security performance is high.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is left view of the present invention.
Fig. 3 is moving frame top partial view diagram of the present invention.
Fig. 4 is the front view of firing lock of the present invention.
Fig. 5 is the front view of locking device of the present invention.
Reference numeral and representative ingredient thereof are: 1. after moving frame part 2. determines frame part 3. data acquisition processing device 4. location-plate 5. guide rail 6. firing lock 7. displacement transducer 8. acceleration transducer 9. floated magnetic patch 10. locking device 11. fixed mechanism 12. snap ring 13. upper flat plate 14. backstay 15. clip 16. web joint 17. times flat board 18. carriage 19. column 20. orientation stand 21. control device 22., before adjustment rack 23., 26. location-plate I 27. connecting rod 28.U type pull bar 29. web joint I 30. pressing plate 31. web joint II 32. electromagnet 33. spacer ferrule I 34. web joint III 35. latch I 36. latch II 37. screws linked up with by adjustment rack 24. mobile device 25..
Embodiment
Composition graphs 1 and Fig. 2, the proving installation of unbalance dynamic momentum of the present invention, comprises moving frame part 1, determines frame part 2, data acquisition processing device 3 (data acquisition processing device refer in common computing machine install conventional data processing software carry out data acquisition and analyze and computing technique process according to unbalance dynamic momentum).Wherein, moving frame part 1 comprises location-plate 4, guide rail 5, firing lock 6, displacement transducer 7, acceleration transducer 8, floated magnetic patch 9, locking device 10, front and back fixed mechanism 11, front and back snap ring 12, upper flat plate 13, backstay 14, clip 15, web joint 16, lower dull and stereotyped 17, carriage 18 and column 19.
Two described guide rails 5 are parallel, and are fixedly installed on location-plate 4 by column 19, and measured object is fixed on front fixed mechanism 11 and rear fixed mechanism by front snap ring 12, rear snap ring; Upper flat plate 13 both sides respectively connect one group of carriage, 18, two groups of carriages and slide on guide rail 5, are fixedly connected with between two groups of carriages by backstay 14 with clip 15; Carriage 18 is locked on guide rail 5 by locking device 10, realizes the fixing of moving frame part 1; Firing lock 6 is fixedly connected on upper flat plate 13; Acceleration transducer 8 and floated magnetic patch 9 are fixed on upper flat plate 13 by web joint 16; Displacement transducer 7 is fixed on lower dull and stereotyped 17; Acceleration transducer 8 and displacement transducer 7 connection data acquisition processing device 3.Moving frame part 1 is connected to location-plate 4, with location-plate 4 for reference system, make moving frame part on it be parallel to location-plate 4 platform completely, ensure that system axis and moving frame part 1 axis are same axis simultaneously, decrease the moment resistance do not produced in same axis.Front and back snap ring 12 is installed on guide rail 5 two ends, changes snap ring 12 internal diameter and spacing, makes this device adapt to products of different specifications.Firing lock 6 is fixed on below guide rail 5, is used for pulling the trigger measured object, position adjustable.
Composition graphs 3, the frame part 2 of determining in the proving installation of unbalance dynamic momentum of the present invention comprises orientation stand 20, control device 21 (control device refers to conventional start-up technique), rear adjustment rack 22, front adjustment rack 23 and mobile device 24.Wherein control device 21 is connected with firing lock 6; Orientation stand 20, rear adjustment rack 22 and front adjustment rack 23 are arranged on mobile device 24; Orientation stand 20 controls the direction of mobile device 24, and rear adjustment rack 22 and front adjustment rack 23 regulate the height of mobile device 24; Location-plate 4 is fixed on mobile device 24.Location-plate 4 is placed in be determined in frame part 2, and by determining orientation stand 20 in frame part 2, control device 21, rear adjustment rack 22, front adjustment rack 23 carries out moving, aiming operation.
Front fixed mechanism 11 in the proving installation of unbalance dynamic momentum of the present invention is identical with rear fixed mechanism structure, be made up of fixing semicircular ring and assembling semicircular ring respectively, one end of assembling semicircular ring and fixing semicircular ring is movably connected, at the end of measured object assembling, the other end of assembling semicircular ring and fixing semicircular ring closes merga pass latch and fixes; After measured object is assemblied in front and back fixed mechanism 11, the axis of measured object, front and back fixed mechanism 11 is parallel with two guide rails 5, and is positioned at the centre of two guide rails 5.Front snap ring 12 is identical with rear Snap ring structure, is made up of respectively two rubber semicircular ring, is arranged on measured object and fixing semicircular ring, assembles between semicircular ring.
Composition graphs 4, the firing lock 6 of the proving installation of unbalance dynamic momentum of the present invention comprises hook 25, location-plate I 26, connecting rod 27, U-shaped pull bar 28, web joint I 29, pressing plate 30, web joint II 31, electromagnet 32, spacer ferrule I 33, web joint III 34.Hook 25 adopts screw thread to be connected with U-shaped pull bar 28, is connected with location-plate I 26 by connecting rod 27 with measured object; U-shaped pull bar 28 is connected with web joint I 29 by pressing plate 30, and spacer ferrule I 33 is connected with upper flat plate 13 by web joint II 31, and electromagnet 32 is connected with spacer ferrule I 33 by web joint III 34; Control device 21 is connected with electromagnet 32 by cable.To link up with after the direction of 25 spacing measured objects is, reverse direction is front.Wherein electromagnet 32 can adopt all-metal closure, does not produce interference to other electronic equipment.
Composition graphs 5, moving frame part is fixed when the locking device 10 of the proving installation of unbalance dynamic momentum of the present invention transports for testboard bay, be made up of latch I 35, latch II 36, screw 37, latch I 35 and latch II 36 are set on guide rail 5 by screw 37, and near outside carriage 18, complete the fixing of moving frame part 1 by tightening screw 37.
The test process of the unbalance dynamic momentum of the proving installation of unbalance dynamic momentum of the present invention is as follows.After control device 21 is converted to walking mode by fixed mode, promote determine frame part 2, proving installation is transferred to precalculated position, device under test concentrate one's gaze on basic confirmation after, be converted to fixed mode.Confirming that measured object insurance is in safety position, trigger is in after cock, the location-plate I 26 of firing lock 6 is fixing on trigger, measured object is installed, is fixed by front and back snap ring 12; Adjustment firing lock 6; Take off locking device 10, sense of rotation frame 20 handwheel, the directive of adjustment testboard bay, adjustment rack 22 and front adjustment rack 23 handwheel after rotating, adjustment testboard bay level, to moving frame part 1 not automatic moving, wherein moving frame part 1 is parallel with location-plate 4 all the time; Connection data acquisition processing device 3, firing lock 6 power supply; Switch on power, input the parameter relevant to measured object, now proving installation is in state to be tested; Moving frame part 1 (containing measured object) is moved to guide rail 5 centre position, starts control device 21, launch, produce uneven momentum, data acquisition processing device 3 pairs of momentums are tested.
Before transmitting, moving frame part 1 is in horizontality, and displacement transducer 7, floated magnetic patch 9 are in the centre position of shift motion, and the gravity Q of moving frame part 1 is vertical with guide rail 5 workplace, does not produce Impulse to moving frame part 1.After percussion, out-of-balance force F produces Impulse to moving frame part 1, makes moving frame part 1 overcome frictional resistance F
ntranslation on guide rail 5, displacement transducer 7 exports the voltage signal linear with displacement, and obtain acceleration-time curve by acceleration transducer 8, the data that displacement transducer 7 obtains corrected, data acquisition processing device 3 records, store and show displacement-time curve.Recorded emission process moving frame part 1 displacement curve is processed accordingly, comprises signal syntheses, filtering, differentiate etc., draw and speed-add time curve obtain momentum-time curve and suffered momentum value further.
Claims (7)
1. the proving installation of a unbalance dynamic momentum, it is characterized in that comprising moving frame part (1), determine frame part (2), data acquisition processing device (3), wherein moving frame part (1) comprises location-plate (4), two guide rails (5), firing lock (6), displacement transducer (7), acceleration transducer (8), floated magnetic patch (9), locking device (10), front and back fixed mechanism (11), front and back snap ring (12), upper flat plate (13), backstay (14), clip (15), web joint (16), lower flat board (17), carriage (18) and column (19),
Two described guide rails (5) are parallel, and being fixedly installed on location-plate (4) by column (19), measured object is fixed on front fixed mechanism (11) and rear fixed mechanism by front snap ring (12), rear snap ring; Upper flat plate (13) both sides respectively connect one group of carriage (18), two groups of carriages, respectively in the upper slip of each self-corresponding guide rail (5), are fixedly connected with clip (15) by backstay (14) between two groups of carriages; Carriage (18) is locked on guide rail (5) by locking device (10), realizes the fixing of moving frame part (1); Firing lock (6) is fixedly connected on upper flat plate (13); Acceleration transducer (8) and floated magnetic patch (9) are fixed on upper flat plate (13) by web joint (16); Displacement transducer (7) is fixed on lower flat board (17); Acceleration transducer (8) and displacement transducer (7) connection data acquisition processing device (3).
2. the proving installation of unbalance dynamic momentum according to claim 1, it is characterized in that determining frame part (2) comprises orientation stand (20), control device (21), rear adjustment rack (22), front adjustment rack (23) and mobile device (24), wherein control device (21) is connected with firing lock (6); Orientation stand (20), rear adjustment rack (22) and front adjustment rack (23) are arranged on mobile device (24); Orientation stand (20) controls the direction of mobile device (24), and rear adjustment rack (22) and front adjustment rack (23) regulate the height of mobile device (24); Location-plate (4) is fixed on mobile device (24).
3. the proving installation of unbalance dynamic momentum according to claim 1, it is characterized in that front fixed mechanism (11) is identical with rear fixed mechanism (11) structure, be made up of fixing semicircular ring and assembling semicircular ring respectively, one end of assembling semicircular ring and fixing semicircular ring is movably connected, at the end of measured object assembling, the other end of assembling semicircular ring and fixing semicircular ring closes merga pass latch and fixes; After measured object is assemblied in front and back fixed mechanism, the axis of measured object, front and back fixed mechanism is parallel with two guide rails (5), and is positioned at the centre of two guide rails (5).
4. the proving installation of unbalance dynamic momentum according to claim 1, is characterized in that snap ring (12) is made up of two rubber semicircular ring, is arranged on measured object and fixing semicircular ring, assembles between semicircular ring.
5. the proving installation of unbalance dynamic momentum according to claim 1, it is characterized in that firing lock (6) comprises hook (25), location-plate I (26), connecting rod (27), U-shaped pull bar (28), web joint I (29), pressing plate (30), web joint II (31), electromagnet (32), spacer ferrule I (33), web joint III (34), described hook (25) adopts screw thread to be connected with U-shaped pull bar (28), is connected with location-plate I (26) by connecting rod (27) with measured object; U-shaped pull bar (28) is connected with web joint I (29) by pressing plate (30), spacer ferrule I (33) is connected with upper flat plate (13) by web joint II (31), and electromagnet (32) is connected with spacer ferrule I (33) by web joint III (34); Control device (21) is connected with electromagnet (32) by cable; To link up with after the direction of (25) spacing measured object is, reverse direction is front.
6. the proving installation of unbalance dynamic momentum according to claim 5, is characterized in that the electromagnet (32) of firing lock (6) adopts all-metal closure.
7. the proving installation of unbalance dynamic momentum according to claim 1, moving frame part is fixed when it is characterized in that locking device (10) transports for testboard bay, be made up of latch I (35), latch II (36), screw (37), latch I (35) and latch II (36) are set on guide rail (5) by screw (37), and near carriage (18) outside, complete the fixing of moving frame part (1) by tightening screw (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510176766.XA CN104764551B (en) | 2015-04-14 | 2015-04-14 | A kind of unbalance dynamic momentum test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510176766.XA CN104764551B (en) | 2015-04-14 | 2015-04-14 | A kind of unbalance dynamic momentum test device |
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| Publication Number | Publication Date |
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| CN104764551A true CN104764551A (en) | 2015-07-08 |
| CN104764551B CN104764551B (en) | 2017-08-04 |
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| CN201510176766.XA Active CN104764551B (en) | 2015-04-14 | 2015-04-14 | A kind of unbalance dynamic momentum test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865709A (en) * | 2016-06-22 | 2016-08-17 | 南京卓砾智测控技术有限公司 | In-field calibration device of pendulum type impact wave pressure sensor |
| CN105865694A (en) * | 2016-06-28 | 2016-08-17 | 中国南方航空工业(集团)有限公司 | Turboprop engine pull strength measurement device |
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| JP3990098B2 (en) * | 1999-08-07 | 2007-10-10 | シェンク ロテック ゲーエムベーハー | Unbalance measuring device and method |
| CN102072790A (en) * | 2010-11-16 | 2011-05-25 | 北京航空航天大学 | Device for measuring micro impulse |
| CN102269540A (en) * | 2011-06-15 | 2011-12-07 | 北京机械设备研究所 | Measurement device for unbalanced impulse |
| CN102353494A (en) * | 2011-09-29 | 2012-02-15 | 西北核技术研究所 | Optical sensing based impulse testing method and device |
| CN103528739A (en) * | 2013-09-29 | 2014-01-22 | 北京市三一重机有限公司 | Impulse testing system |
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2015
- 2015-04-14 CN CN201510176766.XA patent/CN104764551B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3990098B2 (en) * | 1999-08-07 | 2007-10-10 | シェンク ロテック ゲーエムベーハー | Unbalance measuring device and method |
| CN102072790A (en) * | 2010-11-16 | 2011-05-25 | 北京航空航天大学 | Device for measuring micro impulse |
| CN102269540A (en) * | 2011-06-15 | 2011-12-07 | 北京机械设备研究所 | Measurement device for unbalanced impulse |
| CN102353494A (en) * | 2011-09-29 | 2012-02-15 | 西北核技术研究所 | Optical sensing based impulse testing method and device |
| CN103528739A (en) * | 2013-09-29 | 2014-01-22 | 北京市三一重机有限公司 | Impulse testing system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865709A (en) * | 2016-06-22 | 2016-08-17 | 南京卓砾智测控技术有限公司 | In-field calibration device of pendulum type impact wave pressure sensor |
| CN105865709B (en) * | 2016-06-22 | 2018-06-08 | 南京卓砾智测控技术有限公司 | A kind of Charpy wave pressure force snesor field calibration device |
| CN105865694A (en) * | 2016-06-28 | 2016-08-17 | 中国南方航空工业(集团)有限公司 | Turboprop engine pull strength measurement device |
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