CN104764551B - A kind of unbalance dynamic momentum test device - Google Patents
A kind of unbalance dynamic momentum test device Download PDFInfo
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- CN104764551B CN104764551B CN201510176766.XA CN201510176766A CN104764551B CN 104764551 B CN104764551 B CN 104764551B CN 201510176766 A CN201510176766 A CN 201510176766A CN 104764551 B CN104764551 B CN 104764551B
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Abstract
The invention discloses a kind of test device of unbalance dynamic momentum, including moving frame part, determine frame part, data acquisition processing device, wherein moving frame part includes location-plate, two guide rails, firing lock, displacement transducer, acceleration transducer, floated magnetic patch, locking device, fixed mechanism, snap ring, upper flat plate, locating rod, clip, connecting plate, lower flat board, carriage and column.Present invention, avoiding the situation for testing unbalance dynamic momentum that at this stage can not directly, reliably, stably, easy；System axis and moving frame segment axis are same axis, reduce the torque resistance produced by not in same axis.
Description
Technical field
The invention belongs to momentum measuring technology, particularly a kind of unbalance dynamic momentum test device.
Background technology
Traditional momentum test uses pendulum method, and processing means fall behind, and equipment is complicated, is easily disturbed by external condition.Now
Momentum test changes towards guide rail method, but now common guide rail method test device, simple in construction, unstable, is vulnerable to each
Plant interference.Therefore, have developed some high accuracy, momentum test devices of high stability in the prior art.Such as Beijing plant equipment
" a kind of test device of uneven momentum " that the patent (201110160628.4) of research institute is proposed, the technical scheme is equally sharp
Guide rail method is used, it is impact arrangement to survey method of testing suffered by launching tube by sensor, is indirectly measurement equipment.Have the disadvantage needs
More supporting measuring apparatus, complicated, device data processing is cumbersome, and precision is not high, tests the numerical value of accumulation, integrates
To the uneven momentum of launching tube.Although the technical scheme can obtain the momentum of launching tube institute stress in theory, exist obvious
It is not enough：1. contacted using rolling bearing with launching tube on-fixed, during rotation, with the increase of launching tube weight, suffered resistance is obvious
Increase；There is Relative friction between launching tube and rolling bearing simultaneously, cause surveyed error very big at this 2 points.2. as launching tube is moved
Dynamic, its gravity motion with two rolling bearing centers not on the same axis, further increases error.3. it is simple in construction, stability
It is poor with exploitativeness.
" a kind of rocket firework launches the test device of momentum " that the patent (201320792133.8) of Liu Jing young tiger is proposed, should
Technical scheme dynamically catches the emissivity situation of change in rocket firework emission process using pressure sensor, to calculate fire
Arrow fireworks momentum situation of change, but exist substantially not enough：1. blast produces a large amount of light and heats, to the Acquisition Error of its data compared with
Greatly；2. to avoid outburst, blast hole is inside unloaded, while also reducing the precision of device.
" a kind of momentum survey based on optical sensing that the patent (201110299654.5) of Xibei Nuclear Techn Inst is proposed
Side is placed on method for testing and device ", guide rail the mass of linear grating, and mass is moved under Impulse, and measurement is straight
Reflective light intensity-time graph of line grating, calculating obtains momentum parameter.This metering system has the following disadvantages：1. weapon is sent out
The influence device optical measurement such as gas produced by penetrating；2. for arm discharge device, momentum is obtained by proof mass, increased
Big test error.
" a kind of micro impulse test device " that the patent (201010547069.8) of BJ University of Aeronautics ＆ Astronautics is proposed, should
Technical scheme produces micro impulse using thruster swings moving frame, and the displacement that moving frame is swung is obtained by displacement transducer
Signal, obtains swinging maximum position, obtains the relation of moving frame yaw displacement and electromagnetic force by electromagnetic calibration mechanism and swings week
Phase obtains suffered micro impulse.Have the following disadvantages：1. arm discharge device quality is overweight, produces big to single side-sway arm
, there is error in gravity；2. the big test environment of momentum produced by arm discharge can not being met.
The content of the invention
Have measuring accuracy height, simple and convenient operation and maintenance, safe and reliable and performance steady it is an object of the invention to provide one kind
The device of fixed unbalance dynamic momentum test.
The technical solution for realizing the object of the invention is：A kind of test device of unbalance dynamic momentum, including moving frame portion
Divide, determine frame part, data acquisition processing device, wherein moving frame part includes location-plate, two guide rails, firing lock, displacements biographies
Sensor, acceleration transducer, floated magnetic patch, locking device, fixed mechanism, snap ring, upper flat plate, locating rod, clip, connection
Plate, lower flat board, carriage and column；
Two described guide rail parallels, and be fixedly installed on by column on location-plate, measured object is by preceding snap ring, rear snap ring
It is fixed on preceding fixed mechanism and rear fixed mechanism；Upper flat plate both sides respectively connect one group of carriage, two groups of carriages difference
Slide, be fixedly connected between two groups of carriages by locating rod with clip on each self-corresponding guide rail；Locking device will be sliding
Dynamic device is locked on guide rail, realizes the fixation of moving frame part；Firing lock is fixedly connected on upper flat plate；Acceleration transducer
It is fixed on floated magnetic patch by connecting plate on upper flat plate；Displacement transducer is fixed on lower flat board；Acceleration transducer and
Displacement transducer connects data acquisition processing device.
The present invention compared with prior art, its remarkable advantage：(1) present invention, avoiding at this stage can not directly, reliably, surely
The situation of fixed, easy test unbalance dynamic momentum.(2) system axis and moving frame segment axis are same axis, are reduced not
Torque resistance produced by same axis.(3) location-plate coordinates level meter, is horizontal location-plate, by adjusting
Forward and backward snap ring on whole moving frame part, changes moving frame part snap ring internal diameter and spacing, the present invention is had for different bore products
Flexible adjustable characteristic.(4) by location-plate platform as reference system, make its above moving frame part fully horizontally flat in location-plate
Platform, with stable, reliable characteristic.(5) possess independent firing lock, and firing lock position can level moved in trigger shaft
It is dynamic；Electromagnet all-metal is closed in firing lock, and interference is not produced to other electronic equipments；Firing lock is output as the low electricity of safety
Pressure, security performance is high.
The present invention is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the front view of the present invention.
Fig. 2 is the left view of the present invention.
Fig. 3 is the 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 and its representative part are：1. the data acquisition process dress of frame part 3. is determined in moving frame part 2.
The floated magnetic patch 10. of 4. location-plate, 5. guide rail, 6. firing lock, 7. displacement transducer, 8. acceleration transducer 9. is put to lock
Tight device 11. fixed mechanism, 12. snap ring, 13. upper flat plate, 14. locating rod, 15. clip, 16. connecting plate, 17. times flat boards
18. the mobile device of adjustment frame 24. before adjustment frame 23. after the control device 22. of 19. column of carriage, 20. orientation stand 21.
25. link up with the electromagnetism of 26. location-plate, I 27. 31. connecting plate of connecting rod 28.U types pull bar 29. connecting plate, I 30. pressing plate II 32.
The screw of I 36. latch of iron 33. spacer ferrule, I 34. connecting plate, III 35. latch II 37..
Embodiment
With reference to Fig. 1 and Fig. 2, the test device of unbalance dynamic momentum of the present invention, including moving frame part 1, determine frame part 2, number
According to acquisition processing device 3, (data acquisition processing device refers to that conventional data processing software is installed in common computer to be carried out
Data acquisition is handled according to the analysis of unbalance dynamic momentum and computing technique).Wherein, moving frame part 1 includes location-plate 4, led
Rail 5, firing lock 6, displacement transducer 7, acceleration transducer 8, floated magnetic patch 9, locking device 10, front and rear fixed mechanism
11st, front and rear snap ring 12, upper flat plate 13, locating rod 14, clip 15, connecting plate 16, lower flat board 17, carriage 18 and column 19.
Two described guide rails 5 are parallel, and are fixedly installed on by column 19 on location-plate 4, measured object by preceding snap ring 12,
Snap ring is fixed on preceding fixed mechanism 11 and rear fixed mechanism afterwards；The both sides of upper flat plate 13 respectively connect one group of carriage 18, two groups
Carriage is slided on guide rail 5, is fixedly connected between two groups of carriages by locating rod 14 with clip 15；Locking device 10
Carriage 18 is locked on guide rail 5, the fixation of moving frame part 1 is realized；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 connecting plate 16；Displacement transducer 7 is fixed on lower flat
On plate 17；Acceleration transducer 8 and the connection data acquisition processing device 3 of displacement transducer 7.Moving frame part 1 is connected to fixed
Position plate 4, be reference system with location-plate 4, make thereon moving frame part be completely parallel to the platform of location-plate 4, while ensure system axis
It is same axis with the axis of moving frame part 1, reduces the torque resistance produced by not in same axis.Front and rear snap ring 12 is installed
In the two ends of guide rail 5, change the internal diameter of snap ring 12 and spacing, the present apparatus is adapted to products of different specifications.Firing lock 6 is fixed on guide rail
5 lower sections, for firing measured object, position can adjust.
With reference to Fig. 3, the frame part 2 of determining in the test device of unbalance dynamic momentum of the present invention includes orientation stand 20, control dress
Put 21 (control device refers to conventional start-up technique), rear adjustment frame 22, preceding adjustment frame 23 and mobile device 24.Wherein control is filled
21 are put to be connected with firing lock 6；Orientation stand 20, rear adjustment frame 22 and preceding adjustment frame 23 are arranged in mobile device 24；Orientation stand
The direction of 20 control mobile devices 24, rear adjustment frame 22 and preceding adjustment frame 23 adjust the height of mobile device 24；Location-plate 4 is fixed
In mobile device 24.Location-plate 4, which is placed in, to be determined on frame part 2, and by determining orientation stand 20 in frame part 2, control device 21 is rear to adjust
Whole frame 22, preceding adjustment frame 23 is to move, aiming operation.
Preceding fixed mechanism 11 in the test device of unbalance dynamic momentum of the present invention is identical with rear fixed mechanism structure, respectively
It is made up of fixed semicircular ring and assembling semicircular ring, one end of assembling semicircular ring and fixed semicircular ring is movably connected, and is tested
At the end of thing is assembled, the other end of assembling semicircular ring and fixed semicircular ring closes merga pass latch and fixed；Before measured object is assemblied in
Afterwards after fixed mechanism 11, measured object, the axis of front and rear fixed mechanism 11 are parallel with two guide rails 5, and in two guide rails 5
Between.Preceding snap ring 12 is identical with rear Snap ring structure, is made up of respectively two rubber semicircular rings, is arranged on measured object and fixed semicircle
Between ring, assembling semicircular ring.
With reference to Fig. 4, the firing lock 6 of the test device of unbalance dynamic momentum of the present invention include hook 25, location-plate I 26,
Connecting rod 27, U-shaped pull bar 28, connecting plate I 29, pressing plate 30, connecting plate II 31, electromagnet 32, spacer ferrule I 33, connecting plate III 34.Hang
Hook 25 is connected using screw thread with U-shaped pull bar 28, is connected by connecting rod 27 and location-plate I 26 with measured object；U-shaped pull bar 28 passes through pressure
Plate 30 is connected with connecting plate I 29, and spacer ferrule I 33 is connected by connecting plate II 31 with upper flat plate 13, and electromagnet 32 passes through connecting plate
III 34 are connected with spacer ferrule I 33；Control device 21 is connected by cable with electromagnet 32.To link up with the direction of 25 spacing measured objects
To be rear, before opposite direction is.Wherein electromagnet 32 can use all-metal closure, other electronic equipments not produced dry
Disturb.
With reference to Fig. 5, the locking device 10 of the test device of unbalance dynamic momentum of the present invention is used to consolidate when testboard bay is transported
Determine moving frame part, be made up of latch I 35, latch II 36, screw 37, latch I 35 and latch II 36 pass through screw 37
It is set on guide rail 5, and against the outside of carriage 18, the fixation of moving frame part 1 is completed by tightening screw 37.
The test process of the unbalance dynamic momentum of the test device of unbalance dynamic momentum of the present invention is as follows.Control device 21 by
Fixed mode is changed to walking mode, and frame part 2 is determined in promotion, and test device is transferred into precalculated position, device under test
Concentrate one's gaze on after basic confirmation, conversion to fixed mode.Cock is treated confirming that measured object insurance is in safety position, trigger
Afterwards, the location-plate I 26 of firing lock 6 is fixed on trigger, measured object is installed, fixed by front and rear snap ring 12；Adjustment percussion
Mechanism 6；Locking device 10 is removed, the handwheel of direction of rotation frame 20 adjusts the directive of testboard bay, adjustment frame 22 and preceding tune after rotation
The whole handwheel of frame 23, adjust testboard bay level, untill moving frame part 1 not automatic moving, wherein moving frame part 1 all the time with positioning
Plate 4 is parallel；Connect data acquisition processing device 3, the power supply of firing lock 6；Switch on power, input the parameter related to measured object,
Now test device is in state to be tested；Moving frame part 1 (containing measured object) is moved to the centre position of guide rail 5, starts control
Device 21, transmitting produces uneven momentum, and data acquisition processing device 3 is tested momentum.
Before transmitting, moving frame part 1 is in horizontality, and displacement transducer 7, floated magnetic patch 9 are in shift motion
Between position, the gravity Q of moving frame part 1 is vertical with the working face of guide rail 5, and Impulse is not produced to moving frame part 1.After percussion, no
Equilibrant force F produces Impulse to moving frame part 1, moving frame part 1 is overcome frictional resistance FNTranslated on guide rail 5, displacement is passed
Sensor 7 is exported and the linear voltage signal of displacement, and obtains acceleration-time song by acceleration transducer 8
The data that displacement transducer 7 is obtained are corrected by line, and data acquisition processing device 3 is recorded, stored and shows displacement-time
Curve.The displacement curve of emission process moving frame part 1 recorded is handled accordingly, including signal synthesis, filtering, derivation
Deng drawing speed-added-time half interval contour, further obtain momentum-time graph and suffered momentum value.
Claims (7)
1. a kind of test device of unbalance dynamic momentum, it is characterised in that including moving frame part (1), determine frame part (2), data and adopt
Collection processing unit (3), wherein moving frame part (1) include location-plate (4), two guide rails (5), firing lock (6), displacement transducers
(7), acceleration transducer (8), floated magnetic patch (9), locking device (10), front and rear fixed mechanism, front and rear snap ring, upper flat plate
(13), locating rod (14), clip (15), connecting plate (16), lower flat board (17), carriage (18) and column (19)；
Two described guide rails (5) are parallel, and are fixedly installed on by column (19) on location-plate (4), and measured object is by preceding snap ring
(12), rear snap ring is fixed on preceding fixed mechanism (11) and rear fixed mechanism；Upper flat plate (13) both sides respectively connect one group of slip dress
Put (18), two groups of carriages are slided on each self-corresponding guide rail (5) respectively, and locating rod is passed through between two groups of carriages
(14) it is fixedly connected with clip (15)；Carriage (18) is locked on guide rail (5) by locking device (10), realizes moving frame part
(1) fixation；Firing lock (6) is fixedly connected on upper flat plate (13)；Acceleration transducer (8) and floated magnetic patch (9) are logical
Connecting plate (16) is crossed to be fixed on upper flat plate (13)；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 test device of unbalance dynamic momentum according to claim 1, it is characterised in that determining frame part (2) includes direction
Frame (20), control device (21), rear adjustment frame (22), preceding adjustment frame (23) and mobile device (24), wherein control device (21)
It is connected with firing lock (6)；Orientation stand (20), rear adjustment frame (22) and preceding adjustment frame (23) are arranged in mobile device (24)；
The direction of orientation stand (20) control mobile device (24), rear adjustment frame (22) and preceding adjustment frame (23) regulation mobile device (24)
Just；Location-plate (4) is fixed in mobile device (24).
3. the test device of unbalance dynamic momentum according to claim 1, it is characterised in that preceding fixed mechanism (11) and after
Fixed mechanism structure is identical, is made up of respectively fixed semicircular ring and assembling semicircular ring, assembling semicircular ring and the one of fixed semicircular ring
End is movably connected, at the end of measured object is assembled, and the other end of assembling semicircular ring and fixed semicircular ring closes merga pass and inserted
Pin is fixed；Measured object is assemblied in after front and rear fixed mechanism, and measured object, the axis of front and rear fixed mechanism are parallel with two guide rails (5),
And positioned at the centre of two guide rails (5).
4. the test device of unbalance dynamic momentum according to claim 1, it is characterised in that front and rear snap ring is by two rubber
Semicircular ring is constituted, and is arranged between measured object and fixed semicircular ring, assembling semicircular ring.
5. the test device of unbalance dynamic momentum according to claim 1, it is characterised in that firing lock (6) includes hook
(25), location-plate I (26), connecting rod (27), U-shaped pull bar (28), connecting plate I (29), pressing plate (30), connecting plate II (31), electromagnetism
Iron (32), spacer ferrule I (33), connecting plate III (34), the hook (25) are connected using screw thread with U-shaped pull bar (28), by even
Bar (27) and location-plate I (26) are connected with measured object；U-shaped pull bar (28) is connected by pressing plate (30) with connecting plate I (29), positioning
I (33) of hoop are connected by connecting plate II (31) with upper flat plate (13), and electromagnet (32) passes through connecting plate III (34) and spacer ferrule I
(33) connect；Control device (21) is connected by cable with electromagnet (32)；Using link up with (25) spacing measured object direction after,
Before opposite direction is.
6. the test device of unbalance dynamic momentum according to claim 5, it is characterised in that the electromagnet of firing lock (6)
(32) all-metal closure is used.
7. the test device of unbalance dynamic momentum according to claim 1, it is characterised in that locking device (10) is used to survey
Moving frame part is fixed when test stand frame is transported, is made up of latch I (35), latch II (36), screw (37), latch I (35)
It is set in latch II (36) by screw (37) on guide rail (5), and on the outside of carriage (18), passes through tightening screw
(37) fixation of moving frame part (1) is completed.
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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
|---|---|
| CN104764551A CN104764551A (en) | 2015-07-08 |
| CN104764551B true CN104764551B (en) | 2017-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19937495A1 (en) * | 1999-08-07 | 2001-02-08 | Schenck Rotec Gmbh | Device and method for determining the unbalance |
| CN102072790B (en) * | 2010-11-16 | 2011-12-07 | 北京航空航天大学 | Device for measuring micro impulse |
| CN102269540B (en) * | 2011-06-15 | 2013-12-18 | 北京机械设备研究所 | Measurement device for unbalanced impulse |
| CN102353494B (en) * | 2011-09-29 | 2013-09-18 | 西北核技术研究所 | Optical sensing based impulse testing method and device |
| CN103528739B (en) * | 2013-09-29 | 2015-07-08 | 北京市三一重机有限公司 | Impulse testing system |
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2015
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