CN104196954A - Spring buffer and vibration isolation device for loading of electric cylinder of aviation rolling bearing tester - Google Patents
Spring buffer and vibration isolation device for loading of electric cylinder of aviation rolling bearing tester Download PDFInfo
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- CN104196954A CN104196954A CN201410468104.5A CN201410468104A CN104196954A CN 104196954 A CN104196954 A CN 104196954A CN 201410468104 A CN201410468104 A CN 201410468104A CN 104196954 A CN104196954 A CN 104196954A
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Abstract
The invention relates to a spring buffer and vibration isolation device, in particular to a spring buffer and vibration isolation device for loading of an electric cylinder of an aviation rolling bearing tester, in order to solve the problem that existing electric cylinders and force sensors have shortcomings under high-frequency and low-amplitude periodical vibration impact and pendular oscillation. The spring buffer and vibration isolation device comprises a compression buffer and vibration isolation mechanism and a stretching buffer and vibration isolation mechanism, and the compression buffer and vibration isolation mechanism comprises a compression loading piston rod, a compression front guide end cover, a compression working cylinder, a compression spring, a guide loading body, a compression rear guide end cover, a loading head and a plurality of first connecting bolts. The spring buffer and vibration isolation device is used in the aviation rolling bearing tester.
Description
Technical field
The present invention relates to spring buffer isolation mounting, be specifically related to the loading of aviation rolling bearing exerciser electric cylinder and use spring buffer isolation mounting, belong to aerospace field.
Background technique
Electric cylinder is that one can realize reciprocating electric drive deceleration loading device, and oneself is widely used in all trades and professions.The bringing device of high speed aviation rolling bearing exerciser using straight line back and forth movement electric cylinder as external load.
Have electric cylinder load high speed aviation rolling bearing exerciser and conventional hydraulic load high speed roller bearing exerciser compared with have the following advantages: cost is low, simple in structure, easy for installation, easy and simple to handle, operate steadily, response is fast, control accuracy is high, reliable performance, environment friendly and pollution-free, the high speed roller bearing exerciser of thoroughly having avoided conventional hydraulic to load oozes, the problem of leakage force feed and hydraulic oil heated denaturalization.
Because making it, rolling bearing own characteristic inevitably produces the periodic vibration of high frequency, low amplitude value when the high speed rotating; And for roller bearing, because its gap is compared with causing its appearance shimmy greatly; Hence one can see that, and rolling bearing inevitably exists dither to impact and be shimmy in the time of high speed rotating.Therefore, high speed aviation rolling bearing exerciser deceleration loading device electric cylinder used will bear lasting periodic shock vibration and shimmy.This will adjust, revise output loads the moment for closed loop control electric cylinder, and this can cause that electric cylinder control accuracy declines, energy consumption too much, the life-span reduces and unstability.Meanwhile, the startup impact of electric cylinder and variable working condition are impacted again and can brought very large additional load to impact to high speed roller bearing exerciser, and have brought vibration, the noise of exerciser and born unnecessary external load excitation.Most of electric cylinders and executed between carrier and all will arrange that power sensor is to record the variation of electric cylinder institute imposed load, the lasting periodic shock load of high speed roller bearing and shimmyly also can cause that power sensor accuracy declines, the life-span reduces.
And the high speed aviation rolling bearing exerciser loading thering is electric cylinder, being responsible for the electric cylinder system that bearing load loads is the key position of whole exerciser, fact proved that depending merely on vibration damping equipment in electric cylinder and power sensor is to isolate lasting high frequency, periodically vibratory impulse and the shimmy impact on electric cylinder, power sensor accuracy and life-span by a narrow margin that the tested bearing different rotating speeds of polytypic and load cause completely.
Summary of the invention
The present invention solves existing electric cylinder, power sensor to impact and the problem of shimmy lower Shortcomings at high frequency, low amplitude value periodic vibration, and then proposes aviation rolling bearing exerciser electric cylinder and load and use spring buffer isolation mounting.
The present invention addresses the above problem the technological scheme of taking to be: the present invention includes compression buffering vibration isolating mechanism and the buffering vibration isolating mechanism that stretches, described compression buffering vibration isolating mechanism comprises compression-loaded piston rod, compress leading to end cap, compression work cylinder, Compress Spring, guiding adds carrier, guiding end cap after compression, loading head and several first connecting bolts, compression work cylinder is horizontally disposed with, compress and be leadingly connected with the left end of compression work cylinder by multiple the first connecting bolts to end cap, after compression, guiding end cap is connected with the right-hand member of compression work cylinder by multiple the first connecting bolts, guiding adds carrier and is arranged in compression work cylinder, and guiding adds the right-hand member of the nose bar on carrier right flank through the rear guiding of compression end cap, the middle part that guiding adds carrier left surface has through hole, nose bar is hollow body, the through hole that guiding adds carrier left surface middle part is communicated with the inner chamber of nose bar, the right-hand member of compression-loaded piston rod is inserted into guiding to end cap and adds in the through hole at carrier left surface middle part through compression is leading, Compress Spring is sleeved on the outer side wall of compression-loaded piston rod, and the left end of Compress Spring is connected with the first boss on compression-loaded piston rod outer side wall, the right-hand member of Compress Spring is connected with the left surface that guiding adds carrier, loading head is arranged on the right-hand member of nose bar,
Described stretching buffering vibration isolating mechanism comprises the loading piston rod that stretches, tension guide front cover, guiding loads cylinder, pump nozzle assembly, stretching clutch release slave cylinder, stretching loading head, tension guide rear end cover, extension spring and several second connecting bolts, stretching clutch release slave cylinder is horizontally disposed with, guiding loads cylinder level and is inserted in stretching clutch release slave cylinder, tension guide front cover is tightly connected by the left end of multiple the second connecting bolts and stretching clutch release slave cylinder, tension guide rear end cover is tightly connected by the right-hand member of multiple the second connecting bolts and stretching clutch release slave cylinder, the left end of stretching loading head loads cylinder right-end openings place through tension guide rear end cover and guiding and is connected, stretching loads the right-hand member of piston rod from left to right successively through tension guide front cover, guiding loads cylinder left side and is arranged in guiding loading cylinder, extension spring is sleeved on to stretch and loads on the outer side wall of piston rod, and the left end of extension spring loads cylinder left end inner side surface with guiding and is connected, the right-hand member of extension spring is connected with the second boss loading on piston rod right-hand member outer side wall that stretches, pump nozzle assembly is inserted on the outer side wall of stretching clutch release slave cylinder.
The invention has the beneficial effects as follows: the present invention delays and isolated that high frequency, low amplitude value periodic vibration that High Rotation Speed rolling bearing produces impact and shimmy control on electric cylinder and power sensor and sampling precision, the impact in life-span; The present invention can avoid the unstable phenomenon of electric cylinder; The present invention suppresses and has reduced electric cylinder variable working condition and impacted the impact on tested bearing in high speed roller bearing exerciser.The present invention is simple in structure, slow, impact strength is large, structural stability is reliable, can meet the tested bearing at the Multiple Type of high speed aviation rolling bearing exerciser, under harsh operating mode, the present invention can ensure that electric cylinder and power sensor thereof have good buffering vibration isolating effect and the usability of lasting stability.
Brief description of the drawings
Fig. 1 is the structural representation of compression buffering vibration isolating mechanism, and Fig. 2 stretches to cushion the structural representation of vibration isolating mechanism.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1 and Fig. 2, described in present embodiment, aviation rolling bearing exerciser electric cylinder loads with spring buffer isolation mounting and comprises that compression cushions vibration isolating mechanism and stretches buffering vibration isolating mechanism, described compression buffering vibration isolating mechanism comprises compression-loaded piston rod 1, compress leading to end cap 4, compression work cylinder 6, Compress Spring 7, guiding adds carrier 8, guiding end cap 9 after compression, loading head 10 and several first connecting bolts 3, compression work cylinder 6 is horizontally disposed with, compress and be leadingly connected with the left end of compression work cylinder 6 by multiple the first connecting bolts 3 to end cap 4, after compression, guiding end cap 9 is connected with the right-hand member of compression work cylinder 6 by multiple the first connecting bolts 3, guiding adds carrier 8 and is arranged in compression work cylinder 6, and guiding adds the right-hand member of the nose bar 8-1 on carrier 8 right flanks through the rear guiding of compression end cap 9, the middle part that guiding adds carrier 8 left surfaces has through hole, nose bar 8-1 is hollow body, the through hole that guiding adds carrier 8 left surface middle parts is communicated with the inner chamber of nose bar 8-1, the right-hand member of compression-loaded piston rod 1 is inserted into guiding to end cap 4 and adds in the through hole at carrier 8 left surfaces middle parts through compression is leading, Compress Spring 7 is sleeved on the outer side wall of compression-loaded piston rod 1, and the left end of Compress Spring 7 is connected with the first boss 1-1 on compression-loaded piston rod 1 outer side wall, the right-hand member of Compress Spring 7 is connected with the left surface that guiding adds carrier 8, loading head 10 is arranged on the right-hand member of nose bar 8-1,
Described stretching buffering vibration isolating mechanism comprises the loading piston rod 11 that stretches, tension guide front cover 12, guiding loads cylinder 13, pump nozzle assembly 14, stretching clutch release slave cylinder 15, stretching loading head 16, tension guide rear end cover 18, extension spring 19 and several second connecting bolts 17, stretching clutch release slave cylinder 15 is horizontally disposed with, guiding loads cylinder 13 levels and is inserted in stretching clutch release slave cylinder 15, tension guide front cover 12 is tightly connected with the left end of stretching clutch release slave cylinder 15 by multiple the second connecting bolts 17, tension guide rear end cover 18 is tightly connected with the right-hand member of stretching clutch release slave cylinder 15 by multiple the second connecting bolts 17, the left end of stretching loading head 16 loads cylinder 13 right-end openings places through tension guide rear end cover 18 and guiding and is connected, stretching loads the right-hand member of piston rod 11 from left to right successively through tension guide front cover 12, guiding loads cylinder 13 left sides and is arranged in guiding loading cylinder 13, extension spring 19 is sleeved on to stretch and loads on the outer side wall of piston rod 11, and the left end of extension spring 19 loads cylinder 13 left end inner side surfaces with guiding and is connected, the right-hand member of extension spring 19 is connected with the second boss 11-1 loading on piston rod 11 right-hand member outer side walls that stretches, pump nozzle assembly 14 is inserted on the outer side wall of stretching clutch release slave cylinder 15.
Compression-loaded piston rod 1 in present embodiment, stretching loads that piston rod 11, guiding add carrier 8, guiding loads on cylinder 13 and is equipped with spring centering cambered surface, to ensure extension spring and the centering of Compress Spring inner side surface and to avoid the appearance of its transverse bending vibration.
Compression-loaded piston rod 1, stretching load on piston rod 11 and are equipped with screw thread, and are connected with spring formation stop nut, occur pressing also phenomenon to avoid playing window, cause its buffering, the decline of vibration isolation ability.
Compression-loaded piston rod, stretching load piston rod, guiding adds carrier and stretching loading head is provided with vent to avoid the impact of vapour lock.
Compression-loaded piston rod, guiding add carrier, guiding loads cylinder and is provided with trapped fuel groove, to ensure its free sliding and to utilize the oil-film damping effect of lubricant oil to suppress the pulsatile impact of tested bearing and shimmy.
The pilot hole of forward and backward guiding end cap can realize compression-loaded piston rod, stretching loads that piston rod, spring, guiding add carrier, stretching loading head retrains neutral equilibrium, and then ensure compression-loaded piston rod, stretching loads the accurate control that piston rod, spring and guiding add carrier, stretching loading head and realize in forward and backward guiding end cap and clutch release slave cylinder its free sliding, also increases the stationarity of whole device simultaneously.
Loading head adds carrier by screw thread and guiding and is connected, and wherein the arc-shaped surface of loading head can ensure the uniform load of electric cylinder load.
Guiding loads between cylinder and stretching clutch release slave cylinder and coordinates for moving, to ensure that guiding loads cylinder free sliding.
Stretching loads piston rod, stretching loading head is provided with general dovetail groove and realizes conveniently, is connected reliably with different sensors and tested bearing transposition.
Embodiment two: in conjunction with Fig. 1, present embodiment is described, aviation rolling bearing exerciser electric cylinder loads and is set with stop nut 2 with the left end of the compression-loaded piston rod 1 of spring buffer isolation mounting described in present embodiment.Other composition and annexation and embodiment one.
Embodiment three: present embodiment is described in conjunction with Fig. 1, described in present embodiment, the loading of aviation rolling bearing exerciser electric cylinder also comprises two the first felt circles 5 with spring buffer isolation mounting, the outer side wall of compression-loaded piston rod 1 is provided with a first felt circle 5 with compression is leading to end cap 4 joints, after the outer side wall of compression-loaded piston rod 1 and compression, guiding end cap 9 joints are provided with a first felt circle 5.
The technique effect of present embodiment is: so arrange, effectively prevented oil leak and pollution.Other composition and annexation are identical with embodiment one or two.
Embodiment four: present embodiment is described in conjunction with Fig. 2, described in present embodiment, the loading of aviation rolling bearing exerciser electric cylinder also comprises two the second felt circles 20 with spring buffer isolation mounting, stretching loads piston rod 11 outer side walls and tension guide front cover 12 joints are provided with a second felt circle 20, and stretch loading piston rod 11 outer side walls and tension guide rear end cover 18 joints are provided with a second felt circle 20.
The technique effect of present embodiment is: so arrange, effectively prevented oil leak and pollution.Other composition and annexation are identical with embodiment one.
Working principle
In the time that high speed roller bearing exerciser is worked, spring is in compressive state, the high frequency, low amplitude value periodic vibration and the shimmy impact on loading electrical cylinder and sensor that now can slow down, prolongation and isolated part High Rotation Speed bearing produce; When electric cylinder is in starting and when variable working condition, compression deformation of the spring can delay and reduce the variable working condition of electric cylinder and impact the impact on tested rolling bearing, the damping of while lubricant film also can suppress the vibration of bearing.
Claims (4)
1. aviation rolling bearing exerciser electric cylinder loads and uses spring buffer isolation mounting, it is characterized in that: described aviation rolling bearing exerciser electric cylinder loads with spring buffer isolation mounting and comprises that compression cushions vibration isolating mechanism and stretches buffering vibration isolating mechanism, described compression buffering vibration isolating mechanism comprises compression-loaded piston rod (1), compress leading to end cap (4), compression work cylinder (6), Compress Spring (7), guiding adds carrier (8), guiding end cap (9) after compression, loading head (10) and several the first connecting bolts (3), compression work cylinder (6) is horizontally disposed with, compress and be leadingly connected with the left end of compression work cylinder (6) by multiple the first connecting bolts (3) to end cap (4), after compression, guiding end cap (9) is connected with the right-hand member of compression work cylinder (6) by multiple the first connecting bolts (3), guiding adds carrier (8) and is arranged in compression work cylinder (6), and guiding adds the right-hand member of the nose bar (8-1) on carrier (8) right flank through compression rear guiding end cap (9), the middle part that guiding adds carrier (8) left surface has through hole, nose bar (8-1) is hollow body, the through hole that guiding adds carrier (8) left surface middle part is communicated with the inner chamber of nose bar (8-1), the right-hand member of compression-loaded piston rod (1) is inserted into guiding to end cap (4) and adds in the through hole at carrier (8) left surface middle part through compression is leading, Compress Spring (7) is sleeved on the outer side wall of compression-loaded piston rod (1), and the left end of Compress Spring (7) is connected with the first boss (1-1) on compression-loaded piston rod (1) outer side wall, the right-hand member of Compress Spring (7) is connected with the left surface that guiding adds carrier (8), loading head (10) is arranged on the right-hand member of nose bar (8-1),
Described stretching buffering vibration isolating mechanism comprises the loading piston rod (11) that stretches, tension guide front cover (12), guiding loads cylinder (13), pump nozzle assembly (14), stretching clutch release slave cylinder (15), stretching loading head (16), tension guide rear end cover (18), extension spring (19) and several the second connecting bolts (17), stretching clutch release slave cylinder (15) is horizontally disposed with, guiding loads cylinder (13) level and is inserted in stretching clutch release slave cylinder (15), tension guide front cover (12) is tightly connected by multiple the second connecting bolts (17) and the left end of stretching clutch release slave cylinder (15), tension guide rear end cover (18) is tightly connected by multiple the second connecting bolts (17) and the right-hand member of stretching clutch release slave cylinder (15), the left end of stretching loading head (16) loads cylinder (13) right-end openings place through tension guide rear end cover (18) and guiding and is connected, stretching loads the right-hand member of piston rod (11) from left to right successively through tension guide front cover (12), guiding loads cylinder (13) left side and is arranged in guiding loading cylinder (13), extension spring (19) is sleeved on to stretch and loads on the outer side wall of piston rod (11), and the left end of extension spring (19) loads cylinder (13) left end inner side surface with guiding and is connected, the right-hand member of extension spring (19) is connected with the second boss (11-1) loading on piston rod (11) right-hand member outer side wall that stretches, pump nozzle assembly (14) is inserted on the outer side wall of stretching clutch release slave cylinder (15).
2. aviation rolling bearing exerciser electric cylinder loads and uses spring buffer isolation mounting according to claim 1, it is characterized in that: the left end of compression-loaded piston rod (1) is set with stop nut (2).
3. load and use spring buffer isolation mounting according to aviation rolling bearing exerciser electric cylinder described in claim 1 or 2, it is characterized in that: described aviation rolling bearing exerciser electric cylinder loading spring buffer isolation mounting also comprises two the first felt circles (5), the outer side wall of compression-loaded piston rod (1) is provided with a first felt circle (5) with compression is leading to end cap (4) joint, after the outer side wall of compression-loaded piston rod (1) and compression, guiding end cap (9) joint is provided with a first felt circle (5).
4. aviation rolling bearing exerciser electric cylinder loads and uses spring buffer isolation mounting according to claim 1, it is characterized in that: described aviation rolling bearing exerciser electric cylinder loading spring buffer isolation mounting also comprises two the second felt circles (20), stretching loads piston rod (11) outer side wall and tension guide front cover (12) joint is provided with a second felt circle (20), and stretch loading piston rod (11) outer side wall and tension guide rear end cover (18) joint are provided with a second felt circle (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410468104.5A CN104196954B (en) | 2014-09-15 | 2014-09-15 | Aviation rolling bearing exerciser electric cylinder loads and uses spring buffer isolation mounting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410468104.5A CN104196954B (en) | 2014-09-15 | 2014-09-15 | Aviation rolling bearing exerciser electric cylinder loads and uses spring buffer isolation mounting |
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| CN104196954A true CN104196954A (en) | 2014-12-10 |
| CN104196954B CN104196954B (en) | 2016-04-20 |
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| CN201410468104.5A Active CN104196954B (en) | 2014-09-15 | 2014-09-15 | Aviation rolling bearing exerciser electric cylinder loads and uses spring buffer isolation mounting |
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Cited By (6)
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| CN105650197A (en) * | 2016-03-19 | 2016-06-08 | 沈阳工业大学 | Shock isolation device adopting tension spring with single-ended bidirectional movement function |
| CN106768781A (en) * | 2017-01-10 | 2017-05-31 | 北京强度环境研究所 | A kind of waveform generator for blocking impact test |
| CN107939887A (en) * | 2017-12-21 | 2018-04-20 | 晋江圣翔机械有限公司 | A kind of buffer |
| CN108087471A (en) * | 2018-01-23 | 2018-05-29 | 南京理工大学 | A kind of twin ring spring buffer unit |
| CN108105327A (en) * | 2017-12-30 | 2018-06-01 | 王廷剑 | Electric cylinder loads dual spring buffer unit |
| CN113167350A (en) * | 2018-11-28 | 2021-07-23 | 索尼集团公司 | Elastic unit |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650197A (en) * | 2016-03-19 | 2016-06-08 | 沈阳工业大学 | Shock isolation device adopting tension spring with single-ended bidirectional movement function |
| CN106768781A (en) * | 2017-01-10 | 2017-05-31 | 北京强度环境研究所 | A kind of waveform generator for blocking impact test |
| CN106768781B (en) * | 2017-01-10 | 2024-05-10 | 北京强度环境研究所 | Waveform generator for blocking impact test |
| CN107939887A (en) * | 2017-12-21 | 2018-04-20 | 晋江圣翔机械有限公司 | A kind of buffer |
| CN108105327A (en) * | 2017-12-30 | 2018-06-01 | 王廷剑 | Electric cylinder loads dual spring buffer unit |
| CN108087471A (en) * | 2018-01-23 | 2018-05-29 | 南京理工大学 | A kind of twin ring spring buffer unit |
| CN108087471B (en) * | 2018-01-23 | 2023-11-28 | 南京理工大学 | Duplex annular spring buffer device |
| CN113167350A (en) * | 2018-11-28 | 2021-07-23 | 索尼集团公司 | Elastic unit |
| CN113167350B (en) * | 2018-11-28 | 2023-08-08 | 索尼集团公司 | Elastic unit |
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| CN104196954B (en) | 2016-04-20 |
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