CN105527103A - Single-point support knuckle bearing performance testing machine - Google Patents
Single-point support knuckle bearing performance testing machine Download PDFInfo
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- CN105527103A CN105527103A CN201610029989.8A CN201610029989A CN105527103A CN 105527103 A CN105527103 A CN 105527103A CN 201610029989 A CN201610029989 A CN 201610029989A CN 105527103 A CN105527103 A CN 105527103A
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- bearing
- test
- shaft coupling
- point support
- deceleration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
Abstract
The invention relates to a single-point support knuckle bearing performance testing machine and belongs to the aerospace field. The testing machine comprises a motor, a decelerator, a deceleration distributor, test units, support units, loading devices, pressure sensors, displacement measurement devices, a work bench, installation torque sensors and shaft couplers. The motor is connected with the decelerator through one shaft coupler; the decelerator is connected with the deceleration distributor through one shaft coupler; the deceleration distributor is connected with the test units through the installation torque sensors and the shaft couplers; the test units are arranged on the support units respectively; the loading devices are matched with the test units through the pressure sensors respectively; each displacement measurement device is connected to one side of each test unit; and the motor, the decelerator, the deceleration distributor, the support units and the loading devices are fixedly arranged on the work bench. The testing machine carries out simulation test on actual working conditions of a knuckle bearing and related parts so as to find out factors influencing the use performance and service life of the knuckle bearing and the related parts, and is safe and reliable and high in interchangeability.
Description
Technical field
The present invention relates to a kind of testing machine, especially relate to a kind of single-point support oscillating bearing performance aircraft, this testing machine is mainly used in the agree life test of aviation body oscillating bearing under single-point support operating mode, and it belongs to field of aerospace technology.
Background technology
General axis is promised by type selecting with bearing limit speed, basic dynamic load rating or basic rated static load are according to carrying out type selecting, but for the single-point support oscillating bearing that aviation body is applied, as flight control system, slat, the oscillating bearing at the positions such as empennage, due to the singularity of aeroplane structure design, not only the supporting way of bearing is single-point support, and the matching design of bearing and mounting means design be also different from regular machinery equipment bearing coordinate and install design, its stressed asymmetry, the unconventional property of bearing wear will be caused, thus bring the unworthiness of bearing fatigue life theory, therefore general bearing selection ground is not suitable for the type selecting of single-point support bearing.
The performance test apparatus of rolling bearing is the performance that can not be used for evaluating oscillating bearing, therefore can not selection ground be used as, and the performance test apparatus of oscillating bearing is all generally adopt two point to support or multi-point support at present, this operating mode hypozygal bearing can bear larger load, and uniform force, the single-point support oscillating bearing that this working condition tests and aviation body are applied, practical application is completely different, the parameter of its simulation differs very large with force way, therefore two fulcrum support operating mode hypozygal bearing performance test result can not the actual usability of actual response single-point support operating mode hypozygal bearing, therefore comparatively strong technical support can not be provided for its type selecting.
Publication date is on November 18th, 2015, and publication number is in the Chinese patent of 105067263A, discloses the patent of invention that a kind of name is called " tail-rotor formula helicopter tail rotor form a complete set of joint bearing life testing machine ".This patent servo driving oil cylinder drives the upper end of pitch-change-link to pump by displacement crotch, and the lower end of pitch-change-link drives blade upset, and the two ends up and down of pitch-change-link are provided with experiment oscillating bearing.The comprehensive service life test of oscillating bearing although the tail rotor that this invention can meet four support arms forms a complete set of, the real load and real motion that bear in each oscillating bearing work can be simulated, but for the single-point support oscillating bearing that aviation body is applied, not only the supporting way of bearing is single-point support, and the matching design of bearing and mounting means design be also different from regular machinery equipment bearing coordinate and install design, its stressed asymmetry, the unconventional property of bearing wear will be caused, thus bring the unworthiness of bearing fatigue life theory, therefore still there is above-mentioned defect in it.
Summary of the invention
The object of the invention is to overcome above shortcomings in prior art, and a kind of reasonable in design is provided, simulation test is carried out to oscillating bearing and related components actual condition, thus find out the key factor affecting oscillating bearing and related components usability and life-span, safe and reliable, the single-point support oscillating bearing performance aircraft that interchangeability is strong.
The present invention's adopted technical scheme that solves the problem is: this single-point support oscillating bearing performance aircraft, comprises motor, controller, frequency converter, speed reduction unit, deceleration divider and multiple shaft coupling, described motor is connected with speed reduction unit by shaft coupling, and this speed reduction unit is connected by the input shaft of shaft coupling with deceleration divider, and the control line of controller is connected with frequency converter, frequency converter is connected on motor, it is characterized in that: also comprise test unit, bearing element, charger, pressure transducer, displacement measuring device, worktable and multiplely install torque sensor additional, deceleration divider and test unit are by installing torque sensor additional and shaft coupling is connected, test unit is arranged on bearing element, charger by pressure transducer by load applying on test unit, displacement measuring device is connected to the side of test unit, motor, speed reduction unit, deceleration divider, bearing element and charger are all fixing on the table, and frequency converter and controller are fixed on the side of worktable, rational in infrastructure, loading outer ring, a kind of outer ring drives structure device that test unit and bearing element form, safe and reliable.
As preferably, bearing element of the present invention comprises support, adjustment ring, axis pin base, bearing pin and locking clamp, axis pin base and support adopt wringing fit to add screw to be connected, bearing pin and axis pin base adopt wringing fit to add and are threaded, one end of locking clamp and pinned connection, the other end of this locking clamp is connected with support, and adjustment ring is sleeved on bearing pin.
As preferably, test unit of the present invention comprises carrier compound, spring bearing, bearing seat, test bearing and transmission square shaft, test bearing outer ring is arranged in bearing seat, bearing seat is arranged on spring bearing inner ring, bearing seat has greasing hole, spring bearing outer ring is contained in carrier compound, and transmission square shaft is connected with bearing seat, and test bearing inner ring is arranged on the bearing pin of bearing element; Test unit can be suitable for test bearing and the spring bearing of different size by carrier compound and bush structure, and interchangeability is strong.
As preferably, bearing element of the present invention is an adjustable single-point support mechanism of precipice beam length; Be convenient to the actual condition being also conducive to real simulation bearing while test unit is installed.
As preferably, deceleration divider of the present invention adopts input three output end structures; Make joint efficiency each other more stable.
As preferably, of the present inventionly install torque sensor additional, test unit, bearing element, charger be three, three output shafts of deceleration divider are connected with three test units with shaft coupling respectively by installing torque sensor additional, and three test units are arranged on three bearing elements respectively.
As preferably, shaft coupling of the present invention comprises the first shaft coupling, the second shaft coupling and the 3rd shaft coupling, motor is connected with speed reduction unit by the first shaft coupling, and speed reduction unit is connected with deceleration divider by the second shaft coupling, and the 3rd shaft coupling is arranged on and installs additional between torque sensor and test unit.
As preferably, test bearing of the present invention comprises grease lubrication and self-lubricating; Make working effect better.
The present invention compared with prior art, has the following advantages and effect: 1, reasonable in design, and bearing element is designed to single-point support structure, is convenient to the actual condition being also conducive to real simulation bearing while test unit is installed; 2, test unit can be suitable for test bearing and the spring bearing of different size by carrier compound and bush structure, and interchangeability is strong; 3, timing manually or automatically can conveniently be realized to oscillating bearing greasing by test bush inside railway grease pipeline; 4, three stations all have independent loads device and displacement measuring device, both can also can run by multistation by independent experiment simultaneously; 5, monitoring test unit change in torque and temperature variation, realizes the diagnosis of test bearing wear-out failure, realizes loading spectrum control test bearing.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the embodiment of the present invention.
Fig. 2 is the package assembly schematic diagram of test unit and bearing element in the embodiment of the present invention.
In figure: shaft coupling L, motor 1, the first shaft coupling 2, speed reduction unit 3, the second shaft coupling 4, deceleration divider 5, installs torque sensor 6 additional, the 3rd shaft coupling 7, displacement measuring device 8, test unit 9, bearing element 10, pressure transducer 11, charger 12, worktable 13, carrier compound 14, spring bearing 15, bearing seat 16, test bearing 17, transmission square shaft 18, support 19, adjustment ring 20, axis pin base 21, bearing pin 22, locking clamp 23, greasing hole A.
Embodiment
Below in conjunction with accompanying drawing, also by embodiment, the present invention is described in further detail, and following examples are explanation of the invention and the present invention is not limited to following examples.
Embodiment.
See Fig. 1 to Fig. 2, the present embodiment single-point support oscillating bearing performance aircraft mainly comprises shaft coupling L, motor 1, speed reduction unit 3, deceleration divider 5, installs torque sensor 6, displacement measuring device 8, test unit 9, bearing element 10, pressure transducer 11, charger 12 and worktable 13 additional.
Motor 1 in the present embodiment is connected with speed reduction unit 3 by shaft coupling L, this speed reduction unit 3 is connected with the input shaft of deceleration divider 5 by shaft coupling L, the control line of controller is connected with frequency converter, frequency converter is connected on motor 1, deceleration divider 5 and test unit 9 are by installing torque sensor 6 additional and shaft coupling L is connected, test unit 9 is arranged on bearing element 10, charger 12 passes through pressure transducer 11 by load applying on test unit 9, displacement measuring device 8 is connected to the side of test unit 9, motor 1, speed reduction unit 3, deceleration divider 5, bearing element 10 and charger 12 are all fixed on worktable 13, frequency converter and controller are fixed on the side of worktable 13.
Torque sensor 6 is installed additional in the present embodiment, test unit 9, bearing element 10, charger 12 is three, deceleration divider 5 has three output shafts, three output shafts are connected with three test units 9 with shaft coupling L respectively by installing torque sensor 6 additional, three test units 9 are arranged on three bearing elements 10 respectively, test load is all applied on tested bearing by test unit 9 external diameter by pressure transducer 11 in test unit 9 side by three chargers 12, at test unit 9 opposite side, displacement transducer is installed, all temperature sensor is installed in each test unit 9, install torque sensor 6 additional, pressure transducer 11, displacement transducer is connected with controller input end with the output terminal of temperature sensor, displacement transducer is fixed on worktable 13 by support 19.
Bearing element 10 in the present embodiment comprises support 19, adjustment ring 20, axis pin base 21, bearing pin 22 and loosens clamp, axis pin base 21 and support 19 adopt wringing fit to add screw to be connected, bearing pin 22 adopts wringing fit to add with axis pin base 21 and is threaded, one end of locking clamp 23 is connected with bearing pin 22, the other end of this locking clamp 23 is connected with support 19, adjustment ring 20 is sleeved on bearing pin 22, and bearing element 10 is an adjustable single-point support mechanism of precipice beam length.
Test unit 9 in the present embodiment comprises carrier compound 14, spring bearing 15, bearing seat 16, test bearing 17 and transmission square shaft 18, test bearing 17 outer ring is arranged in bearing seat 16, bearing seat 16 is arranged on spring bearing 15 inner ring with certain magnitude of interference, bearing seat 16 has greasing hole A, spring bearing 15 outer ring interference fit is contained in carrier compound 14, transmission square shaft 18 is connected with bearing seat 16, test bearing 17 inner ring is arranged on the bearing pin 22 of bearing element 10, and inner ring end face is positioned on the end face of adjustment ring 20 of bearing element 10.
Test unit 9 in the present embodiment is arranged on bearing pin 22 by the endoporus of test bearing 17, and test bearing 17 comprises grease lubrication and self-lubricating.
Deceleration divider 5 in the present embodiment adopts input three output end structure, and three output terminals of this deceleration divider 5 install torque sensor 6 additional with three respectively and are connected.
Shaft coupling L in the present embodiment comprises the first shaft coupling 2, second shaft coupling 4 and the 3rd shaft coupling 7, motor 1 is connected with speed reduction unit 3 by the first shaft coupling 2, speed reduction unit 3 is connected with deceleration divider 5 by the second shaft coupling 4, and the 3rd shaft coupling 7 is arranged on and installs additional between torque sensor 6 and test unit 9.
The working method of the present embodiment: motor 1 provides power, rotary motion or oscillating motion are delivered on test unit 9 by speed reduction unit 3 and deceleration divider 5, thus corresponding action made by motoring ring test bearing 17, between each parts, couple together transmission power by the first shaft coupling 2 and the second shaft coupling 4 and the 3rd shaft coupling 7; Bearing pin 22 belongs to a kind of cantilever beam structure, test bearing 17 is made to be in single-point support state, the power provided for test bearing 17 is monitored by installing torque sensor 6 additional, and charger 12 can be test bearing 17 imposed load, and magnitude of load can be measured by pressure transducer 11; When test bearing 17 belongs to oscillating motion, the wearing and tearing situation of change of monitoring test bearing 17 and bearing pin 22 can be carried out by displacement measuring device 8; When test bearing 17 needs regularly to add grease for grease lubricating bearing, can be undertaken adding grease lubrication by greasing hole A.
Data monitoring in process of the test in the present embodiment and motor 1 action control complete by PLC, pendulum angle, hunting frequency and magnitude of load can be set according to test parameters during test, realize multistation by input three output of deceleration divider 5 and run to improve test efficiency simultaneously.
The present embodiment is used for carrying out simulation test to oscillating bearing and related components actual condition, thus find out the key factor affecting oscillating bearing and related components usability and life-span, for the type selecting of the oscillating bearing under such operating mode and the parts material selection be mated, structural design provide technical support.
By above-mentioned elaboration, those skilled in the art can implement.
In addition, it should be noted that, the specific embodiment described in this instructions, the shape, institute's title of being named etc. of its parts and components can be different, and the above content described in this instructions is only to structure example of the present invention explanation.The equivalence change that structure, feature and the principle of all foundations described in inventional idea of the present invention are done or simple change, be included in the protection domain of patent of the present invention.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (8)
1. a single-point support oscillating bearing performance aircraft, comprise motor, controller, frequency converter, speed reduction unit, deceleration divider and multiple shaft coupling, described motor is connected with speed reduction unit by shaft coupling, this speed reduction unit is connected by the input shaft of shaft coupling with deceleration divider, the control line of controller is connected with frequency converter, frequency converter is connected on motor, it is characterized in that: also comprise test unit, bearing element, charger, pressure transducer, displacement measuring device, worktable and multiplely install torque sensor additional, deceleration divider and test unit are by installing torque sensor additional and shaft coupling is connected, test unit is arranged on bearing element, charger by pressure transducer by load applying on test unit, displacement measuring device is connected to the side of test unit, motor, speed reduction unit, deceleration divider, bearing element and charger are all fixing on the table, frequency converter and controller are fixed on the side of worktable.
2. single-point support oscillating bearing performance aircraft according to claim 1, it is characterized in that: described bearing element comprises support, adjustment ring, axis pin base, bearing pin and locking clamp, axis pin base and support adopt wringing fit to add screw to be connected, bearing pin and axis pin base adopt wringing fit to add and are threaded, one end of locking clamp and pinned connection, the other end of this locking clamp is connected with support, and adjustment ring is sleeved on bearing pin.
3. single-point support oscillating bearing performance aircraft according to claim 1, it is characterized in that: described test unit comprises carrier compound, spring bearing, bearing seat, test bearing and transmission square shaft, test bearing outer ring is arranged in bearing seat, bearing seat is arranged on spring bearing inner ring, bearing seat has greasing hole, spring bearing outer ring is contained in carrier compound, and transmission square shaft is connected with bearing seat, and test bearing inner ring is arranged on the bearing pin of bearing element.
4. single-point support oscillating bearing performance aircraft according to claim 1 and 2, is characterized in that: described bearing element is an adjustable single-point support mechanism of precipice beam length.
5. single-point support oscillating bearing performance aircraft according to claim 1, is characterized in that: described deceleration divider adopts input three output end structures.
6. single-point support oscillating bearing performance aircraft according to claim 1, it is characterized in that: described in install torque sensor additional, test unit, bearing element, charger be three, three output shafts of deceleration divider are connected with three test units with shaft coupling respectively by installing torque sensor additional, and three test units are arranged on three bearing elements respectively.
7. single-point support oscillating bearing performance aircraft according to claim 1, it is characterized in that: described shaft coupling comprises the first shaft coupling, the second shaft coupling and the 3rd shaft coupling, motor is connected with speed reduction unit by the first shaft coupling, speed reduction unit is connected with deceleration divider by the second shaft coupling, and the 3rd shaft coupling is arranged on and installs additional between torque sensor and test unit.
8. single-point support oscillating bearing performance aircraft according to claim 3, is characterized in that: described test bearing comprises grease lubrication and self-lubricating.
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CN201610029989.8A CN105527103B (en) | 2016-01-18 | 2016-01-18 | A kind of single-point support oscillating bearing performance aircraft |
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CN201610029989.8A CN105527103B (en) | 2016-01-18 | 2016-01-18 | A kind of single-point support oscillating bearing performance aircraft |
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CN105527103B CN105527103B (en) | 2018-04-20 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106644477A (en) * | 2016-12-19 | 2017-05-10 | 兰州空间技术物理研究所 | Radial joint bearing running-in device |
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CN204556261U (en) * | 2015-05-14 | 2015-08-12 | 台州科锦轴承有限公司 | A kind of oscillating bearing Dynamic performance examination machine and drive axis drive unit thereof |
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SU928534A1 (en) * | 1980-07-11 | 1982-05-15 | Всесоюзный Научно-Исследовательский Проектно-Конструкторский И Технологический Институт Взрывозащищенного И Рудничного Электрооборудования | Stand for testing electric machine bearing assemblies |
JP2008309505A (en) * | 2007-06-12 | 2008-12-25 | Ntn Corp | Bearing testing device and bearing test method |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106644477A (en) * | 2016-12-19 | 2017-05-10 | 兰州空间技术物理研究所 | Radial joint bearing running-in device |
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