CN201247147Y - Mechanism for supporting and loading cantilever of helicopter inclinometer thin-wall bearing detection device - Google Patents
Mechanism for supporting and loading cantilever of helicopter inclinometer thin-wall bearing detection device Download PDFInfo
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- CN201247147Y CN201247147Y CNU2008201489053U CN200820148905U CN201247147Y CN 201247147 Y CN201247147 Y CN 201247147Y CN U2008201489053 U CNU2008201489053 U CN U2008201489053U CN 200820148905 U CN200820148905 U CN 200820148905U CN 201247147 Y CN201247147 Y CN 201247147Y
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Abstract
The utility model belongs to the bearing detecting technique, which provides a cantilever support and a loading mechanism in a detecting device of a thin-wall bearing of a helicopter tilting device, wherein a cantilever supporting mechanism thereof is used for locating the axial direction and the radial direction of a testing bearing (9) and enables the testing bearing to be positioned on one end of a main shaft and in a cantilever structure, the mechanism mainly comprises a bearing outer sleeve (10), a rotationally-linked flange (11), a bearing seat (7) and a flange (6), wherein a loading rod (32) in the loading mechanism is pivoted with an axial load loading hydraulic cylinder (2) through a knuckle bearing (4), a connecting disc (5) is fixedly linked with a loading rod (32) and is linked with the flange, and two torque loading hydraulic cylinders (28) are connected with the loading rod (32) through the knuckle bearing (4) and enables the loading rod (32) to be connected with the connecting disc. The cantilever support and the loading mechanism of the detecting device of the thin-wall bearing of the helicopter tilting device, which are provided by the utility model, have scientifically and reasonably designed structures.
Description
Technical field
The utility model belongs to the bearing detection technique, mainly proposes cantilever support, load maintainer in a kind of helicopter inclinator thin-wall bearing pick-up unit.
Background technology
Auto-bank unit is a chief component of helicopter control system, and total square of rotor and the operation of the displacement in cycle all will realize by it.Auto-bank unit is generally by the rotation (outward) of similar bearing ring with do not rotate (interior) ring and form, it is enclosed within on the rotor shaft by universal joint or ball pivot, swivel eye does not link to each other with collective-pitch lever with jociey stick in the driving cabin by control operating rod, and swivel eye links to each other with blade by pitch-change-link.Test bearing is installed under the auto-bank unit between the swivel eye and slide cartridge, plays location and supporting role, and bears radial load and axial load, moment of torsion.When auto-bank unit did not have inclination, each sheet blade pitch when rotated kept constant; When it is handled when tilting, every blade periodic variation pitch in rotation then.Pitch-change-link go to inclinator when upper pitch strengthen, blade is upwards waved; Go to that pitch reduces when the next, blade is waved downwards.So just form the inclination of rotor disc, make rotor make a concerted effort to tilt, produce a horizontal component.The front and back of helicopter and the sporting flying of left and right directions realize by this manipulation, are called cyclic pitch control.Pilot guidance (carry or press) collective-pitch lever makes auto-bank unit slide up or down along rotor shaft is parallel.The pitch of each sheet blade will increase or reduce simultaneously, the lift of rotor is increased or reduces, and helicopter rises thereupon or descends.This manipulation is called total apart from handling.
Helicopter auto-bank unit thin-wall bearing check and analysis device is to be used for the new high-tech product that domestic air mail screw propeller, aircraft are diagnosed abnormal information collection, structural health detection, the resultant fault of thin-wall bearing under inspecting state, guarantees or improve the property safe and reliable to operation of bearing.Alternative present manual detection improves the accuracy rate that detects greatly, guarantees the safe application performance of bearing.And when helicopter auto-bank unit thin-wall bearing is detected, to test bearing axially, radial location and be located at main shaft one end and be cantilever design, and constitute that the test bearing inner ring is fixed, bearing outer ring is with the structure of main axis rotation; On this basis test bearing is applied the moment of torsion of variation and the axial load of big or small alternation is wherein very important part.
Summary of the invention
The purpose of this utility model promptly is cantilever support, the load maintainer that proposes in a kind of helicopter inclinator thin-wall bearing pick-up unit.
The utility model is finished the technical scheme that its invention task taked: cantilever support, load maintainer in a kind of helicopter inclinator thin-wall bearing pick-up unit; Described cantilever support mechanism be used for to test bearing axially, radial location and be located at main shaft one end and be cantilever design, the bearing outside that this mechanism has connects with the rotation mounting flange and makes the rotation mounting flange be connected in output main shaft one end, and test bearing outer ring and bearing outside interference fit, test bearing inner ring and bearing seat interference fit formation test bearing inner ring are fixed, bearing outer ring is with the structure of main axis rotation; The ring flange that is provided with connects with bearing seat and the ring-shaped step of the ring-shaped step that outwards protrudes by ring flange and the outside protrusion of bearing seat to test bearing inner ring axial location; Frock gland by being connected in bearing outside one side and bearing outside to projecting inward ring-shaped step to test bearing outer ring axial location; Described load maintainer is used for test bearing is applied the axial load of the moment of torsion and the big or small alternation of variation, and it comprises axial load load cylinder, load bar and terminal pad and oscillating bearing; Load bar is hinged by oscillating bearing and axial load load cylinder, and terminal pad connects firmly also with load bar and ring flange connects; Have two and be arranged in parallel and the moment of torsion load cylinder parallel with the axial load load cylinder, the moment of torsion load cylinder is connected with load bar by oscillating bearing and load bar is connected with terminal pad; The load bar of described axial load bar and moment of torsion load cylinder is shared one; Make the axial load load cylinder be connected the middle part of load bar and between axial load load cylinder and load bar, pulling force sensor is set; Two moment of torsion load cylinders are connected to the load bar two ends and between moment of torsion load cylinder and load bar pulling force sensor are set.
Cantilever support, the load maintainer course of work that the utility model proposes in the helicopter inclinator thin-wall bearing pick-up unit are:
The main effect of helicopter auto-bank unit thin-wall bearing is exactly by bearing load and couple, thus the traffic direction of control screw propeller; By bearing outside, rotation mounting flange the test bearing outer ring is connected in the end that drive system is exported main shaft with thin-wall bearing outer ring interference fit, with bearing inner race and bearing seat interference fit and by bearing seat and ring flange to its axial location, constitute the test detection mode of the motionless and bearing outer ring of bearing inner race, and make the rotational speed of bearing outer ring consistent with the real-world operation operating mode of test bearing with the transmission main shaft high speed rotating; Axial load is by axial load cylinder and the load bar that is connected with axial load cylinder promotion terminal pad, and is applied on the bearing inner race by the ring flange that connects one with terminal pad, the inner ring of test bearing loading transfer to whole bearing; Moment of torsion then is connected with load bar by two other load cylinder to be realized, thereby the opposite couple of transmitting of the traffic direction of two load cylinders makes bearing inner race bear the moment of torsion of a variation; Can effectively simulate the change of the traffic direction of screw propeller, when pick-up unit is opened, axially load and moment of torsion moves simultaneously, effectively simulate screw propeller in flight course with direction, highly, the operating condition of position; Make test bearing carry out check and analysis to it under the actual condition of simulation helicopter inclinator thin-wall bearing, testing result is true, accurate; By pulling force sensor set between axial load load cylinder and the load bar axial load parameter that is applied is detected, by pulling force sensor set between moment of torsion load cylinder and the load bar couple on the putting on test bearing detected.
Cantilever support, its scientific structure design of load maintainer that the utility model proposes in the helicopter inclinator thin-wall bearing pick-up unit are reasonable.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model in complete machine.
Accompanying drawing 2 is the vertical view of Fig. 1.
Accompanying drawing 3 is a cantilever support mechanism structure synoptic diagram.
Among the figure, 1, tripod; 2, the axial load load cylinder, 3, pulling force sensor, 4, oscillating bearing, 5, terminal pad, 6, ring flange, 7, bearing seat, 8, the frock gland, 9, test bearing, 10, bearing outside, 11, the rotation mounting flange, 12, the output main shaft, 13, upper box, 14, lining, 15, spring bearing, 16, right back-up ring, 17, intermediate sleeve, 18, set nut, 19, left side back-up ring, 20, belt wheel, 21, the oil bowl, 22, lower box, 23, the ground black iron, 25, temperature sensor, 26, vibration transducer, 27, motor, 28, the moment of torsion load cylinder, 29, T type groove, 30, trial body, 32, load bar.
Embodiment
In conjunction with the accompanying drawings utility model embodiment is illustrated:
Cantilever support, its structure of load maintainer in the utility model helicopter inclinator thin-wall bearing pick-up unit are: described cantilever support mechanism be used for to test bearing 9 axially, radial location and make test bearing be positioned at main shaft one end to be cantilever design, the bearing outside 10 that this mechanism had connects with rotation mounting flange 11 and makes the rotation mounting flange be connected in output main shaft 12 1 ends, and test bearing outer ring and bearing outside interference fit, test bearing inner ring and bearing seat 7 interference fit formation test bearing inner ring are fixed, bearing outer ring is with the structure of main axis rotation; The test method of taking the bearing outer ring rotary inner ring not rotate can reduce the undesired signal of non-bearing movable, makes whole shaft strength even, has effectively simulated the operating condition of screw propeller; The ring flange 6 that is provided with connects with bearing seat 7 and the ring-shaped step of the ring-shaped step that outwards protrudes by ring flange and the outside protrusion of bearing seat to test bearing inner ring axial location; Frock gland 8 by being connected in bearing outside one side and bearing outside to projecting inward ring-shaped step to test bearing outer ring axial location; Described load maintainer is used for test bearing is applied the axial load of the moment of torsion and the big or small alternation of variation, it comprises axial load load cylinder 2, load bar 32 and terminal pad 5 and oscillating bearing 4, load bar 32 is hinged by oscillating bearing 5 and axial load load cylinder 2, and terminal pad connects firmly also with load bar and ring flange connects.The effect of selecting oscillating bearing for use is that oscillating bearing can play a buffering when being subjected to load, effectively reduces the damage to test bearing.Having two be arranged in parallel and moment of torsion load cylinder 28, two moment of torsion load cylinders parallel with axial load load cylinder 2 are worked simultaneously and respectively test bearing 9 applied couple and axial load with axial load cylinder; Described moment of torsion load cylinder 28 is connected with load bar 32 by oscillating bearing 4 and load bar 32 is connected with terminal pad 5; The load bar of described axial load bar and moment of torsion load cylinder is shared one; Make the axial load load cylinder be connected the middle part of load bar and pulling force sensor 3 is set between axial load load cylinder and load bar; Two moment of torsion load cylinders are connected to the load bar two ends and between moment of torsion load cylinder 28 and load bar 32 pulling force sensor 3 are set.
In conjunction with Fig. 1, Fig. 2 to the in addition simple declaration of other parts of pick-up unit main frame: by belt gear, two cover taper roll bearings by face-to-face installation support main shaft between the motor of drive transmission device and the transmission main shaft.Adopt two covers that the advantages of the aspectant installation of taper roll bearing are: can bear bigger axially, radial load, advantage such as aligning and rotating ratio are better, and it is little to rub.Adopt two covers can also share load and the moment of torsion that is subjected to simultaneously to taper roll bearing.Guarantee the stability and the reliability of whole detection device.Lathe bed part in Fig. 1,2: should adapt to the design feature and the dimensions of helicopter auto-bank unit large-sized thin-wall bearing in the design to fuselage part, satisfy mobility, the stability of fuselage again and use the requirement of the convenience of operating.For this reason, the fuselage main body is intended the ironcasting with body structure, lathe bed comprises upper box 13, lower box 22 and ground black iron 23, and the height of fuselage table top adapts to the setting height(from bottom) (get 550mm) of helicopter auto-bank unit to bearing, and body bottom surface is provided with the register pin that is connected with the Horizon iron phase; Drive transmission device comprises motor, drive pulley 20, main spindle box and output main shaft 12 and spring bearing 15; Transmission main shaft 12 is installed on the lining 14 of main shaft casing, is driven by drive pulley 20 by motor.According to the working speed of helicopter auto-bank unit large-sized thin-wall bearing, determine transmission main shaft 12 ranges of speeds 200～1000r/min.Adopt spring bearing 15 to guarantee that the running of axis system is steady, the motion transmission of drive transmission device adopts the belt gear that differs greatly with the bear vibration frequency, and the bearing supporting is adopted in the revolution of output main shaft, can reduce the vibration of foundation of checkout equipment widely.Two cover taper roll bearings by face-to-face installation support main shaft, adopt two covers that the advantages of the aspectant installation of taper roll bearing are: can bear bigger axially, radial load, advantage such as aligning and rotating ratio are better, and it is little to rub.Adopt two covers can also share load and the moment of torsion that is subjected to simultaneously to taper roll bearing.Guarantee the stability and the reliability of whole detection device.
Claims (1)
1, cantilever support in a kind of helicopter inclinator thin-wall bearing pick-up unit, load maintainer, it is characterized in that: described cantilever support mechanism is used for test bearing (9) axial, radial location also is located at main shaft one end and is cantilever design, the bearing outside that this mechanism has (10) connects with rotation mounting flange (11) and makes rotation mounting flange (11) be connected in output main shaft (12) one ends, test bearing (9) outer ring and bearing outside (10) interference fit, test bearing inner ring and bearing seat interference fit constitute the test bearing inner ring and fix, bearing outer ring is with the structure of main axis rotation; The ring flange (6) that is provided with connects with bearing seat (7) and the ring-shaped step of the ring-shaped step that outwards protrudes by ring flange and the outside protrusion of bearing seat to test bearing inner ring axial location; Frock gland (8) by being connected in bearing outside (10) one sides and bearing outside to projecting inward ring-shaped step to test bearing outer ring axial location; The described load maintainer that is used for test bearing (9) is applied the axial load of the moment of torsion of variation and big or small alternation comprises axial load load cylinder (2), load bar (32) and terminal pad (5) and oscillating bearing (4); Load bar (32) is hinged by oscillating bearing (4) and axial load load cylinder (2), and terminal pad (5) connects firmly also with load bar (32) and ring flange (6) connects; Have two and be arranged in parallel and the moment of torsion load cylinder (28) parallel with the axial load load cylinder, moment of torsion load cylinder (28) is connected with load bar (32) by oscillating bearing (4) and load bar (32) is connected with terminal pad (5); The load bar of described axial load bar and moment of torsion load cylinder is shared one; Make the axial load load cylinder be connected the middle part of load bar and between axial load load cylinder (2) and load bar (32), pulling force sensor (3) is set; Two moment of torsion load cylinders (28) are connected to load bar (32) two ends and between moment of torsion load cylinder and load bar pulling force sensor are set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201489053U CN201247147Y (en) | 2008-09-01 | 2008-09-01 | Mechanism for supporting and loading cantilever of helicopter inclinometer thin-wall bearing detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201489053U CN201247147Y (en) | 2008-09-01 | 2008-09-01 | Mechanism for supporting and loading cantilever of helicopter inclinometer thin-wall bearing detection device |
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| Publication Number | Publication Date |
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| CN201247147Y true CN201247147Y (en) | 2009-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201489053U Expired - Fee Related CN201247147Y (en) | 2008-09-01 | 2008-09-01 | Mechanism for supporting and loading cantilever of helicopter inclinometer thin-wall bearing detection device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121875A (en) * | 2010-12-17 | 2011-07-13 | 大连理工大学 | Dynamic loading comprehensive experimental table for gas bearing-rotor system |
| CN102564764A (en) * | 2011-12-31 | 2012-07-11 | 洛阳工铭机电设备有限公司 | Aircraft engine spindle bearing testing machine |
| CN102809485A (en) * | 2012-07-16 | 2012-12-05 | 西安交通大学 | Test bed for radial elastic foil gas bearings of integrated high-speed coupling |
| CN105547701A (en) * | 2016-02-29 | 2016-05-04 | 华南理工大学 | Dynamic load testing device for thin-wall bearing detecting table |
| CN110017984A (en) * | 2019-03-21 | 2019-07-16 | 佛山衡生医疗自动化有限公司 | A kind of bearing outer ring rotary test tooling |
| CN111220369A (en) * | 2020-02-14 | 2020-06-02 | 重庆大学 | Compression loading device and method for large cantilever column |
| CN111716306A (en) * | 2020-06-30 | 2020-09-29 | 扬州大学 | Bearing-rotor experiment table with automatic centering and locking functions |
-
2008
- 2008-09-01 CN CNU2008201489053U patent/CN201247147Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121875A (en) * | 2010-12-17 | 2011-07-13 | 大连理工大学 | Dynamic loading comprehensive experimental table for gas bearing-rotor system |
| CN102121875B (en) * | 2010-12-17 | 2012-05-16 | 大连理工大学 | Dynamic loading comprehensive experimental table for gas bearing-rotor system |
| CN102564764A (en) * | 2011-12-31 | 2012-07-11 | 洛阳工铭机电设备有限公司 | Aircraft engine spindle bearing testing machine |
| CN102564764B (en) * | 2011-12-31 | 2014-10-29 | 洛阳工铭机电设备有限公司 | Aircraft engine spindle bearing testing machine |
| CN102809485A (en) * | 2012-07-16 | 2012-12-05 | 西安交通大学 | Test bed for radial elastic foil gas bearings of integrated high-speed coupling |
| CN105547701B (en) * | 2016-02-29 | 2018-02-27 | 华南理工大学 | A kind of thin-wall bearing monitor station mobile_loading test device |
| CN105547701A (en) * | 2016-02-29 | 2016-05-04 | 华南理工大学 | Dynamic load testing device for thin-wall bearing detecting table |
| CN110017984A (en) * | 2019-03-21 | 2019-07-16 | 佛山衡生医疗自动化有限公司 | A kind of bearing outer ring rotary test tooling |
| CN110017984B (en) * | 2019-03-21 | 2024-05-03 | 烟台大学 | Bearing outer ring rotation test tool |
| CN111220369A (en) * | 2020-02-14 | 2020-06-02 | 重庆大学 | Compression loading device and method for large cantilever column |
| CN111220369B (en) * | 2020-02-14 | 2024-01-16 | 重庆大学 | Compression loading device and method for large cantilever column |
| CN111716306A (en) * | 2020-06-30 | 2020-09-29 | 扬州大学 | Bearing-rotor experiment table with automatic centering and locking functions |
| CN111716306B (en) * | 2020-06-30 | 2021-06-11 | 扬州大学 | Bearing-rotor experiment table with automatic centering and locking functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20130901 |