CN101949773B - Compound swinging type joint bearing testing machine - Google Patents
Compound swinging type joint bearing testing machine Download PDFInfo
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- CN101949773B CN101949773B CN2010102764238A CN201010276423A CN101949773B CN 101949773 B CN101949773 B CN 101949773B CN 2010102764238 A CN2010102764238 A CN 2010102764238A CN 201010276423 A CN201010276423 A CN 201010276423A CN 101949773 B CN101949773 B CN 101949773B
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Abstract
The invention discloses a compound swinging type joint bearing testing machine, comprising a bearing fixture, a first transmission shaft concentric with the bearing fixture for connecting the inner sleeve of a to-be-tested joint bearing in transmission manner, a first driving mechanism for driving the first transmission shaft to perform reciprocating and rotary swinging, and a loading mechanism for applying radial load to the joint bearing. A second transmission shaft is radially connected with the bearing fixture in transmission manner; the axes of the second and first transmission shaft are vertically intersected at the center of the to-be-tested joint bearing; and a second driving mechanism for driving the second transmission shaft to perform reciprocating and rotary swinging is connected on the second transmission shaft. The invention not only can test the frictional wear property of the axial swinging of the joint bearing, but also can test the frictional wear property of the swinging of the joint bearing in the radial inclined direction; the invention is closer to the practical working condition of the joint bearing, so that the tested data is more perfect and sufficient data support for solving the technical index of the service life of the joint bearing under the compound swinging state.
Description
Technical field
The present invention relates to a kind of testing equipment that is used for the test bearing friction and wear characteristic, relate to specifically a kind ofly be used to test oscillating bearing at the compound swing state friction wear testing machine in following serviceable life.
Background technology
In recent years; Develop rapidly along with industry; A lot of industries particularly military affairs, Aero-Space and hard-core technology field are more strict to the Performance And Reliability requirement of oscillating bearing; This just presses for the testing equipment of developing ability comprehensive evaluation oscillating bearing each item performance index, to guarantee the quality of bearing products.
Because oscillating bearing is widely used in each field, has determined that its work operating mode is complicated and changeable.Simultaneously, because distinctive geometric configuration of oscillating bearing and kinetic characteristic, the existing bearing friction wear testing machine is main with unidirectional rotary motion and straight reciprocating motion, with the real work operating mode of oscillating bearing a certain distance is arranged.For example the patent No. is that the Chinese invention patent instructions of ZL200820058975.X discloses the radially testing machine of reciprocally swinging of a kind of high speed; This testing machine installs counterweight additional through leverage simultaneously bearing is applied radial load with the simulation actual condition through the eccentric rocker actuator driving shaft bearing radially reciprocally swinging at a high speed of driven by motor.This testing machine has certain defective aspect the test oscillating bearing; Its swaying direction has only the reciprocally swinging around bearing axis; And do not simulate the outer swing that is enclosed within vergence direction of oscillating bearing; The compound swing of moving simultaneously around axis and vergence direction more do not occur, thereby can not simulate the practical application operating mode of oscillating bearing fully, the data of its detection are comparatively unilateral; Simultaneously can not good treatment load and the contradiction that improves simultaneously of wobble frequency, these deficiencies have limited the raising of testing machine overall performance.
Summary of the invention
The objective of the invention is: a kind of compound swing type oscillating bearing testing machine is provided, can not tests the defective of oscillating bearing outer ring in the vergence direction swing to solve prior art.
The technical scheme of the compound swing type oscillating bearing of the present invention testing machine is: a kind of compound swing type oscillating bearing testing machine; Comprise and be used for first transmission shaft that is in transmission connection with oscillating bearing inner ring to be measured, first driving mechanism that driving first transmission shaft is made reciprocal rotary oscillation; Also comprise the bearing anchor clamps that are used for clamping bearing outer ring to be measured; On said bearing anchor clamps, radially be connected with second transmission shaft; The intersect vertical axis of this second transmission shaft and first transmission shaft, it makes second driving mechanism of reciprocal rotary oscillation on second transmission shaft, to be connected with driving.
On described bearing anchor clamps, be connected with the hydraulic loaded mechanism that is used for bearing imposed load to be measured.
Described second transmission shaft is in transmission connection through expanding tense machine and bearing anchor clamps.
On described each transmission shaft, be respectively arranged with torque sensor.
In said bearing anchor clamps, be provided with temperature sensor.
Described each driving mechanism comprises drive motor; Radially be fixed with a rotating disc on the output shaft of each drive motor respectively; Be fixed with an eccentric connecting pin on each rotating disc respectively; Radially be fixed with a guide rod on each transmission shaft respectively, in each guide rod respectively slidable fit one slide block is arranged, described each slide block is hinged with corresponding eccentric connecting pin.
Offering the eccentric orfice that is used for fixing eccentric connecting pin more than two on the described rotating disc, the distance in each eccentric orfice to rotating disc axle center does not wait.
Be connected with frequency-variable controller respectively on described each drive motor.
The present invention is through radially second transmission shaft that is in transmission connection on the bearing anchor clamps; Thereby wallowing motion is radially made in the outer ring that can drive oscillating bearing; It is than prior art; It not only can test the friction and wear behavior of the axial wobble of oscillating bearing, can also test the friction and wear behavior that oscillating bearing is swung simultaneously on the radial skew direction, more presses close to the real work operating mode of oscillating bearing; Make that the data of test are more perfect, sufficient data support is provided solving the technical indicator in serviceable life of oscillating bearing under compound swing state.
Description of drawings
Fig. 1 is the structural representation of the compound swing type oscillating bearing of the present invention testing machine specific embodiment;
Fig. 2 is the syndeton synoptic diagram of second transmission shaft and joint flange among Fig. 1;
Fig. 3 is the syndeton synoptic diagram of hydraulic loaded mechanism among Fig. 1;
Fig. 4 is the structural representation of driving mechanism among Fig. 1.
Embodiment
For the practical implementation of the compound swing type oscillating bearing of the present invention testing machine for example Fig. 1 to shown in Figure 4; It comprises bearing anchor clamps 1; These bearing anchor clamps 1 are combined by two clamping chunks; Oscillating bearing 2 is clamped in the center of bearing anchor clamps 1; Be used for along axially being rotatably equipped with through bearing seat 7 of oscillating bearing 2 cooperating with the interior cover of oscillating bearing 2 in a side of bearing anchor clamps 1 on first transmission shaft, 3, the first transmission shafts 3 of transmission being connected with first driving mechanism, this first driving mechanism comprises first drive motor 5; First drive motor 5 is in transmission connection through the crank and rocker mechanism 4 and first transmission shaft 3, on first drive motor 5, is connected with frequency-variable controller 6.First torque sensor 16 is installed on first transmission shaft 3.This first transmission shaft 3 axially is in transmission connection with the interior cover of oscillating bearing 2 to be measured, can the axial rotation performance of oscillating bearing be made an experiment.
Upwards be rotatably equipped with second transmission shaft, 8, the second transmission shafts 8 through bearing seat 12 in the footpath of bearing anchor clamps 1 and be in transmission connection through a joint flange 21 and bearing anchor clamps 1, second transmission shaft 8 is through the assembling that is rotationally connected of swelling cover 22 and this joint flange 21.On second transmission shaft 8, be connected with second driving mechanism; This second driving mechanism comprises second drive motor 10; Be in transmission connection on second transmission shaft 8 through second crank and rocker mechanism 9 on second drive motor 10, second transmission shaft is provided with second torque sensor 17.This second transmission shaft being in transmission connection on bearing anchor clamps 1 radially, simultaneously, the center of bearing anchor clamps 1 is passed in the axle center, thereby can drive the outer interplanting wallowing motion radially of oscillating bearing through bearing anchor clamps 1, and the inclined abrasive performance of oscillating bearing is made an experiment.
The crank and rocker mechanism that two transmission shafts are in transmission connection respectively be with reference to the patent No. be the pendulous device of the big torque oscillating bearing of 200920089171.0 disclosed high frequencies friction wear testing machine; It comprises a rotating disc 25 that radially is fixed on the drive motor output shaft; Eccentricly on this rotating disc 25 be fixed with an eccentric connecting pin 24; On the transmission shaft of correspondence radially be fixed with a guide rod 26; Its length direction slidable fit has a slide block 23 in guide rod 26 upper edges, and this slide block 23 and eccentric connecting pin 24 are hinged.
Two transmission shafts 3,8 are vertical each other; Drive the interior cover and the overcoat of oscillating bearing to be measured respectively; The other end at bearing anchor clamps 1 corresponding second transmission shaft 8 also is connected with hydraulic loaded mechanism 15; This hydraulic loaded mechanism comprises a hydraulic loaded cylinder 17, and the piston rod merits and demerits adapter sleeve of this hydraulic loaded cylinder 17 is connected with bearing anchor clamps 1, so that at the trial oscillating bearing is applied a load; Actual condition with the simulation oscillating bearing adopts hydraulic loaded mechanism to be convenient to adjust accurately the load moment that is carried on the oscillating bearing simultaneously.In bearing anchor clamps 1, also be provided with the temperature sensor 14 that is used to measure the oscillating bearing temperature, so that the friction temperature data of record oscillating bearing.Two torque sensors 16,17 are connected on the computing machine 13 through lead respectively, thereby can gather the test figure of each moment of friction of oscillating bearing automatically.Can offer a plurality of connecting holes that are used for setting-up eccentricity connecting pin 24 by corresponding respectively different radius on each rotating disc 25; During use, the distance that can regulate eccentric connecting pin 24 and rotating disc 25 axle center through the position that changes eccentric connecting pin 24 is to change the amplitude of fluctuation of corresponding transmission shaft; Each drive motor adopts VFC, hunting frequency in the time of can adjusting the oscillating bearing test accurately, and it combines with hydraulic loaded mechanism, has well solved the contradiction that load and wobble frequency improve simultaneously in the prior art.
Interior cover with oscillating bearing 2 during test is installed on first transmission shaft 3; And clamp the overcoat of bearing with bearing anchor clamps 1; Preestablish hydraulic loaded mechanism cylinder pressure, set the required frequency of drive motor, each sensor that is used to measure rub-moment and friction temperature be installed through frequency converter; And the torque sensor that is installed in respectively on two transmission shafts is connected on the computing machine 13; Start two drive motor then, can under compound swing condition, realize friction and wear behavior test oscillating bearing.Under the constant situation of other condition, also can only start a drive motor wherein, thus independent oscillating bearing friction and wear behavior under friction and wear behavior under the rotary oscillation condition or wallowing motion condition is tested.
Claims (8)
1.
A kind of compound swing type oscillating bearing testing machine; Comprise be used for oscillating bearing to be measured in first transmission shaft that is in transmission connection of cover, drive first driving mechanism that first transmission shaft is made reciprocal rotary oscillation; It is characterized in that; Also comprise the bearing anchor clamps that are used for clamping bearing outside to be measured; On said bearing anchor clamps, radially be connected with second transmission shaft, the intersect vertical axis of this second transmission shaft and first transmission shaft, it makes second driving mechanism of reciprocal rotary oscillation on second transmission shaft, to be connected with driving.
2.
Compound swing type oscillating bearing testing machine according to claim 1 is characterized in that, on described bearing anchor clamps, is connected with the hydraulic loaded mechanism that is used for bearing imposed load to be measured.
3.
Compound swing type oscillating bearing testing machine according to claim 1 is characterized in that described second transmission shaft is in transmission connection through expanding tense machine and bearing anchor clamps.
4.
Compound swing type oscillating bearing testing machine according to claim 1 is characterized in that, on described each transmission shaft, is respectively arranged with torque sensor.
5. compound swing type oscillating bearing testing machine according to claim 1 is characterized in that, in said bearing anchor clamps, is provided with temperature sensor.
6. according to claim 1 or 2 or 3 described compound swing type oscillating bearing testing machines; It is characterized in that described each driving mechanism comprises drive motor, radially be fixed with a rotating disc on the output shaft of each drive motor respectively; Be fixed with an eccentric connecting pin on each rotating disc respectively; Radially be fixed with a guide rod on each transmission shaft respectively, in each guide rod respectively slidable fit one slide block is arranged, described each slide block is hinged with corresponding eccentric connecting pin.
7.
Compound swing type oscillating bearing testing machine according to claim 6 is characterized in that, is offering the eccentric orfice that is used for fixing eccentric connecting pin more than two on the described rotating disc, and the distance in each eccentric orfice to rotating disc axle center does not wait.
8. compound swing type oscillating bearing testing machine according to claim 6 is characterized in that, is connected with frequency-variable controller respectively on described each drive motor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102764238A CN101949773B (en) | 2010-09-09 | 2010-09-09 | Compound swinging type joint bearing testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102764238A CN101949773B (en) | 2010-09-09 | 2010-09-09 | Compound swinging type joint bearing testing machine |
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| CN101949773A CN101949773A (en) | 2011-01-19 |
| CN101949773B true CN101949773B (en) | 2012-05-30 |
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| CN2010102764238A Active CN101949773B (en) | 2010-09-09 | 2010-09-09 | Compound swinging type joint bearing testing machine |
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| CN111721532B (en) * | 2020-05-22 | 2022-08-09 | 扬州市舜意机械有限公司 | Synchronous rotation testing machine for inner ring and outer ring of long-rod-end joint bearing |
| CN111999062A (en) * | 2020-09-24 | 2020-11-27 | 中国民用航空飞行学院 | Load spectrum loaded joint bearing damage assessment test device |
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Application publication date: 20110119 Assignee: Taizhou Kejin Bearings Co., Ltd. Assignor: Henan University of Science and Technology Contract record no.: X2019980000626 Denomination of invention: Compound swinging type joint bearing testing machine Granted publication date: 20120530 License type: Exclusive License Record date: 20191118 |