CN103592218A - Elastomer rubber sealing ring drag reduction test device and elastomer rubber sealing ring/non-smooth surface integrated drag reduction test device - Google Patents
Elastomer rubber sealing ring drag reduction test device and elastomer rubber sealing ring/non-smooth surface integrated drag reduction test device Download PDFInfo
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- CN103592218A CN103592218A CN201310558447.6A CN201310558447A CN103592218A CN 103592218 A CN103592218 A CN 103592218A CN 201310558447 A CN201310558447 A CN 201310558447A CN 103592218 A CN103592218 A CN 103592218A
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Abstract
The invention aims to provide an elastomer rubber sealing ring drag reduction test device and an elastomer rubber sealing ring/non-smooth surface integrated drag reduction test device. A frequency converter, a frequency adjustment motor, a torque signal coupler and the left end of a transmission shaft are connected with one another in sequence; the right end of the transmission shaft is sleeved with a shaft sleeve; the transmission shaft is connected with the shaft sleeve through a flat key; the shaft sleeve is positioned in a test cavity; the test cavity is fixed on a device base; the middle part of the transmission shaft penetrates through the test cavity and is matched with the test cavity through cavity angular contact ball bearings; a sample piece sleeving cup is fixed outside the shaft sleeve; the sample piece sleeving cup is in clearance fit with the inner wall of the test cavity; an annular slot for mounting an elastomer rubber sealing ring is formed in the sample piece sleeving cup; the elastomer rubber sealing ring is in contact with the inner wall of the test cavity after being arranged in the annular slot. The elastomer rubber sealing ring drag reduction test device and the elastomer rubber sealing ring/non-smooth surface integrated drag reduction test device which are disclosed by the invention move steadily, and are simple and reliable in structure, controllable in pressure and convenient to mount and dismount.
Description
Technical field
What the present invention relates to is a kind of drag reduction proving installation, specifically the drag reduction proving installation of elastomer rubber O-ring seal and non-smooth surface.
Background technology
At present, the research that relevant scholar reduces frictional resistance to application bionic non-smooth surface feature technology both at home and abroad has reached certain height, and successfully in many-side, has obtained significant progress.Various countries experts and scholars are applied to elasticity non-smooth surface and the metal surface Research of Drag Reduction in fluid or gas medium by the thought of the non-smooth morphology body structure surface of elasticity drag reduction and engineering bionics theory, resistance reducing performance to dimple-shaped non-smooth surface is analyzed, developing a kind of effective green drag reduction technology and open up the thinking of products innovation, is the through engineering approaches of the non-smooth drag reduction technology of bionical resilient material, the practical theoretical foundation that provides.Its research means mainly comprises the aspects such as theoretical analysis, numerical simulation, model test, finally by comparing testing the resistance reducing performance of exemplar in test unit, and draws required conclusion, and then puts in practical implementation.No matter be theoretical analysis, also or numerical evaluation, the data precision all obtaining with model test is the highest, and closer to reality, so theoretical analysis, the means such as numerical simulation finally also all need check and the checking of test.Test method is as the important means of research bionic, non-smooth elastic surface drag reduction, for the development of the non-smooth elastic surface drag reduction technology of pushing bionic, improve drag reduction theory and have important effect.Bionic, non-smooth elastic surface can reduce the frictional resistance between elastic body and solid, drag-reduction effect is obvious, it is a kind of brand-new drag reduction technology, but the current research for technique mainly concentrates on theoretical analysis and numerical simulation stage, still there is no a set of complete bionic, non-smooth elastic surface resistance measurement test unit, so model test still cannot complete.Traditional drag reduction experimental study is carried out conventionally in the test machines such as wear test machine, but, because its cost is higher, cost is large, daily servicing is difficult, noise pollution is serious, test condition various aspects all have certain limitation, and all cannot carry out the research of bionic, non-smooth elastic surface drag reduction test.What therefore, study, manufacture a kind of advanced person can be a very important task to the test unit of bionic, non-smooth elastic surface frictional resistance test.
Summary of the invention
The object of the present invention is to provide and can realize elastomer rubber O-ring seal drag reduction proving installation and the integrated drag reduction proving installation of elastomer rubber O-ring seal/non-smooth surface of testing thering is different non-smooth surface structural elasticity bodies and rigid body frictional resistance.
The object of the present invention is achieved like this:
Elastomer rubber O-ring seal drag reduction proving installation of the present invention, it is characterized in that: comprise frequency modulation motor, frequency converter, torque signal coupling mechanism, rubber seal test unit, rubber seal test unit comprises device pedestal, transmission shaft, test cavity, frequency converter, frequency modulation motor, torque signal coupling mechanism, the left end of transmission shaft is connected successively, the right-hand member cover of transmission shaft has axle sleeve, transmission shaft is connected by flat key with axle sleeve, axle sleeve is positioned in test cavity, test cavity is fixed on device pedestal, match with test cavity through test cavity and by cavity angular contact ball bearing in the middle part of transmission shaft, axle sleeve external stability has exemplar a set of cups, exemplar a set of cups and test cavity inner wall clearance fit, on exemplar a set of cups, be provided with for the ring groove of elastomer rubber O-ring seal is installed, elastomer rubber O-ring seal contacts with test cavity inner wall after being arranged on ring groove, frequency modulation motor drives torque signal coupling mechanism and transmission shaft rotation under the effect of frequency converter, and then drives the rotation of exemplar a set of cups and elastomer rubber O-ring seal, thereby torque signal coupling mechanism obtains the torque value of elastomer rubber O-ring seal.
Elastomer rubber O-ring seal drag reduction proving installation of the present invention can also comprise:
1, permanent opening a set of cups on test cavity, opening a set of cups is between the left end and test cavity of transmission shaft, and transmission shaft, through opening a set of cups, is installed a set of cups angular contact ball bearing on opening a set of cups, and transmission shaft matches with a set of cups angular contact ball bearing.
The integrated drag reduction proving installation of elastomer rubber O-ring seal/non-smooth surface of the present invention, it is characterized in that: comprise frequency modulation motor, frequency converter, torque signal coupling mechanism, rubber seal test unit, non-smooth surface test unit, rubber seal test unit comprises device pedestal, transmission shaft, test cavity, frequency converter, frequency modulation motor, torque signal coupling mechanism, the left end of transmission shaft is connected successively, the right-hand member cover of transmission shaft has axle sleeve, transmission shaft is connected by flat key with axle sleeve, axle sleeve is positioned in test cavity, test cavity is fixed on device pedestal, match with test cavity through test cavity and by cavity angular contact ball bearing in the middle part of transmission shaft, axle sleeve external stability has exemplar a set of cups, exemplar a set of cups and test cavity inner wall clearance fit, on exemplar a set of cups, be provided with for the ring groove of elastomer rubber O-ring seal is installed, elastomer rubber O-ring seal contacts with test cavity inner wall after being arranged on ring groove, on exemplar a set of cups, be fixed for the boss of installation test exemplar, boss and test exemplar are all positioned at test cavity external body, when elastomer rubber O-ring seal being carried out to drag reduction experiment, frequency modulation motor drives torque signal coupling mechanism and transmission shaft rotation under the effect of frequency converter, and then drive the rotation of exemplar a set of cups and elastomer rubber O-ring seal, thereby torque signal coupling mechanism obtains the torque value of elastomer rubber O-ring seal, non-smooth surface test unit comprises tailstock framework, leading screw, guide pole, pressure transducer, test frictional plane, slip lid, guide pole is arranged on the left side of tailstock framework, slip lid is sleeved on guide pole, test friction surface is fixed on slip lid, leading screw is through tailstock framework, the left end of leading screw contacts with pressure transducer, pressure transducer is positioned in slip lid, when being moved to the left, leading screw can drive pressure transducer, slip lid and test friction surface are together moved to the left, tailstock frame installation is on device pedestal, tailstock framework is by V-type rail translation on device pedestal of its bottom, on device pedestal, be provided with rectangular channel, on tailstock framework, corresponding rectangular channel is provided with bolt hole, by bolt and rectangular channel, tailstock framework and device pedestal can be compressed to location, when non-smooth surface being carried out to drag reduction experiment, on the ring groove of exemplar a set of cups, uneasiness shoots gonosome rubber seal, movement by V-type rail and leading screw can make to test frictional plane and contact with test exemplar, frequency modulation motor drives torque signal coupling mechanism and transmission shaft rotation under the effect of frequency converter, and then motoring ring test exemplar rotation, thereby torque signal coupling mechanism obtains the torque value of test exemplar.
The integrated drag reduction proving installation of elastomer rubber O-ring seal/non-smooth surface of the present invention can also comprise:
1, in tailstock framework, leading screw support is installed, leading screw is through leading screw support, is provided with screw thread and the screw thread by separately matches on leading screw and leading screw support.
2, leading screw adopts triangle fine thread.
3, the right-hand member of device pedestal is provided with postioning abutment, thereby prevents coming off of tailstock framework.
4, permanent opening a set of cups on test cavity, opening a set of cups is between the left end and test cavity of transmission shaft, and transmission shaft, through opening a set of cups, is installed a set of cups angular contact ball bearing on opening a set of cups, and transmission shaft matches with a set of cups angular contact ball bearing.
Advantage of the present invention is: invention itself has that cost is low, noise is low, volume is little, regular job is easy to maintenance, can adapt to preferably the advantage such as test condition around; Test unit not only can be realized the test completing under fixation pressure condition elastic body and rigid body non-smooth surface drag-reduction effect, also can be directed to the test of zero type rubber seal non-smooth surface drag-reduction effect; Test portion, as the core of this device, has the features such as motion is steady, simple and reliable for structure, pressure is controlled, easy disassembly, the easy replacing of test exemplar; The features such as bulk testing process has had energy-conserving and environment-protective, and precision is high, pollution-free.
Accompanying drawing explanation
Fig. 1 is arrangenent diagram of the present invention;
Fig. 2 is DATA REASONING and collecting part schematic diagram;
Fig. 3 a is the partial structurtes sketch with non-smooth surface zero type rubber seal, and Fig. 3 b is A-A view, and Fig. 3 c is B-B view;
Fig. 4 a is screw thread nail pressing structural drawing a, and Fig. 4 b is D-D view;
Fig. 5 is the test exemplar schematic diagram with non-smooth surface;
Fig. 6 is device pedestal guide rail structure figure;
Fig. 7 is elastomer rubber O-ring seal drag reduction experimental provision structural drawing;
Fig. 8 is that non-smooth surface carries out drag reduction experimental provision structural drawing;
Fig. 9 is overall drag reduction experimental provision structural drawing.
Embodiment
Below in conjunction with accompanying drawing, for example the present invention is described in more detail:
In conjunction with Fig. 1～9, structure of the present invention is mainly divided into power section, DATA REASONING and collecting part, test portion three parts, and wherein test portion comprises two processs of the test, i.e. process of the test a and process of the test b.Process of the test a mainly realizes and carries out frictional resistance test to having zero type rubber seal of non-smooth surface, and process of the test b mainly realizes and carries out drag-reduction effect test to having the test exemplar of non-smooth surface.In process of the test a, the power source by frequency modulation motor 2 as whole table apparatus, under the control of frequency converter 1, for whole bench teat experiment device provides rotary power.When transmission shaft 11 is during in rotation status, the zero type rubber seal 17 that drives its end exemplar a set of cups 18 and be fixed on exemplar a set of cups periphery groove is rotated with same angular velocity.Now, zero type rubber seal 17 outside surfaces will produce relative friction with test cavity 15 inwalls, and then generation frictional resistance, via transmission shaft 11, the moment of torsion that resistance is changed into passes to the torque signal coupling mechanism 4 of DATA REASONING and collecting part, the zero type rubber seal 17 and the size with zero type torque value that rubber seal produces of smooth surface by contrast with non-smooth surface, and then assessment drag-reduction effect.In addition, test exemplar in above-mentioned process of the test zero type rubber seal 17 is replaced by the solid of revolution rubber seal of rectangle or other cross sectional shapes, repeat above-mentioned test operation, also can realize thering is the test of other elastomer rubber O-ring seal drag-reduction effects of non-smooth surface.In process of the test b, to take out zero type rubber seal 17, and exemplar a set of cups 18 is reentered into test cavity 15 inside, the test exemplar 21 with non-smooth surface is equipped with in its end.Then, by device pedestal 6 along V-type rail to test exemplar 21 translations with non-smooth surface, when its left part test frictional plane 25 approaches while having the test exemplar 21 of non-smooth surface, stop translation, and with elements such as four of device both sides uniform bolts 37, pressing plates 36, tailstock framework 34 and the rectangular channel of device pedestal 6 are fixed.After tailstock framework 34 and device pedestal 6 are fixing, the handle 35 of slow circumvolve device tailstock, by coupled leading screw 33, by the test frictional plane 25 of slip lid 26 related its upper ends of leading screw 33 ends along the uniform guide pole 24 of slip lid 26 surroundings to left, thereby push mutually with the test exemplar 21 with non-smooth surface.By being placed in the pressure transducer 27 of slip lid 26 inside, output is two interplanar extruding forces now, after extruding force is constant, setscrew nut 29 is oppositely locked along leading screw 33 directions of feed.By frequency modulation motor 2, under the control of frequency converter 1, with a certain angular velocity, rotate, drive has test exemplar 21 rotation jointly thereupon of non-smooth surface, and then test exemplar 21 and test having non-smooth surface are produced to certain frictional resistance between frictional plane 25, this kind of frictional resistance reaches the form with moment of torsion the torque signal coupling mechanism 4 of DATA REASONING and collecting part via transmission shaft 11, thus output torque value.The test exemplar 21 and the size with the test torque value that exemplar produces of smooth surface by contrast with non-smooth surface, and then assessment drag-reduction effect.In addition, test exemplar 21 in this process of the test and test frictional plane 25 are changed to respective material attribute, repeat above-mentioned test operation, can meet the test to many-sided resistance reducing performances such as elastic body-elastic body, elastic body-rigid body, rigid body-elastic body and rigid body-rigid bodies, also can meet the resistance reducing performance testing experiment requirement to non-smooth surface-non-smooth surface.
In conjunction with Fig. 1 and 2, power section is mainly comprised of frequency modulation motor 2, frequency converter 1 and elastic dowel pin shaft coupling 3,5, and DATA REASONING and collecting part are mainly comprised of relevant components and parts such as torque signal coupling mechanisms 4.By bolt, the device bases such as frequency modulation motor 2, torque signal coupling mechanism 4 are connected with device pedestal 6, guarantee the stability of this part in process of the test.Utilize elastic dowel pin shaft coupling 3,5 by the output shaft of frequency modulation motor 2 with the input shaft of torque signal coupling mechanism 4, the output shaft of torque signal coupling mechanism 4 is connected with the input end of transmission shaft 11, play the object of transferring power and moment of torsion.
DATA REASONING and collecting part principle of work:
By torque signal coupling mechanism 4, collect simulating signal faint in process of the test, processing through transmitter conversion, amplification and filtering, the signal that sensor is collected is converted to the simulating signal that can be connected with data acquisition module, simulating signal is carried out A/D conversion through data acquisition module, change into and can, by the digital signal of computer stored, be stored in computing machine.Wherein each module is connected to: input signal is that the terminal strip of being joined by torque signal coupling mechanism 4 and acquisition module passes to acquisition module, and this data acquisition module is directly connected with the signal conversion module of torque signal coupling mechanism 4, and centre needs to adopt programmable amplifier.Wherein USB interface can directly be connected with notebook, and USB directly powers, without additional power source; There is LabVIEW driver, data can be saved under corresponding path with Excel document form, be convenient to processed offline.
Test portion is mainly comprised of process of the test a and process of the test b.
In conjunction with Fig. 3,4 and 7, test portion a is mainly comprised of transmission shaft 11, bearing (ball) cover 9, opening a set of cups 10, test cavity 15, axle sleeve 16, flat key 14, exemplar a set of cups 18, zero type rubber seal 17, screw thread nail pressing 22, device pedestal 6, angular contact ball bearing 8,12 and screw 7,13 etc.Transmission shaft 11 carries out axial and circumferential location by the angular contact ball bearing 8,12 matching with its two ends, angular contact ball bearing 8 is located with the shaft shoulder of transmission shaft 11 by the bearing (ball) cover 9 of its upper end, bearing (ball) cover 9 has six uniform screws 7 to be connected with opening a set of cups 10, play fixation, the reliability and stability fully installing in warranty test process.Adopting the object of opening a set of cups 10 is in order to guarantee the stationarity of transmission shaft 11 in rotary course, rocking of avoiding producing owing to rotatablely moving impacts test findings, it is connected with test cavity 15 left sides by six of its right sides uniform screw 13, transmission shaft 11 stretches into test cavity 15 by test cavity 15 left end dead eyes, test cavity 15, by welding, is connected with device pedestal 6.At transmission shaft 11 right-hand member covers, have axle sleeve 16, its two by flat key 14, be connected, transmission shaft 11 end thread mill drillings.The structure of screw thread nail pressing 22 mainly consists of three parts, be positioned at its left end threaded portion, be positioned at the splined section at its middle part and be positioned at the plane clamp portion of its right-hand member, and in right side, be processed with interior hexagonal pit.Screw thread nail pressing 22 left end screw threads are meshed with the threaded hole of transmission shaft 11 right-hand members, and the spline at its middle part matches with exemplar a set of cups 18 bottom splines, and the plane pressing plate of its right-hand member contacts with the bottom surface of exemplar a set of cups 18.Exemplar a set of cups 18 adopts clearance fit with axle sleeve 16 cooperation places.When exemplar a set of cups 18 and the zero type rubber seal 17 that is fixed on exemplar a set of cups 18 periphery grooves are installed and are dismantled, only spanner need to be stretched into the opening part of opening a set of cups 10, by clamping the quadrangular structure of transmission shaft 11 surface working, limit the rotation of transmission shaft 11.Then, outer hexagonal spanner is stretched in the interior hexagonal pit of screw thread nail pressing 22 ends, by rotary spanner, can complete installation and the dismantlement work of test unit part.The zero type rubber seal 17 with non-smooth surface has according to research contents in zero smooth type rubber seal surface working, the pit of arranging by certain rule or the structure of other shapes.
Process of the test a principle of work:
In process of the test a, first tailstock framework 34 is moved right to end position, avoid generating device when process of the test a is operated to interfere, affect the carrying out of process of the test.Then, zero type rubber seal 17 is fixed on to exemplar a set of cups 18 surfaces.Subsequently, by screw thread nail pressing 22, the exemplar a set of cups 18 that zero type rubber seal 17 is housed is placed in to test cavity 15 inside, and it is fixing by transmission shaft 11, axle sleeve 16 and exemplar a set of cups 18 to be used in conjunction with spanner and outer hexagonal spanner.Finally, by torque signal coupling mechanism 4 in device and frequency converter 1 initialization, complete the preliminary work of process of the test a.Then, start frequency converter 1 and frequency modulation motor 2, utilize frequency converter 1, for frequency modulation motor 2 is set required rotating speed, and in whole process of the test, all according to above-mentioned rotation speed operation.During on-test, frequency modulation motor 2 output shaft rotations via elastic dowel pin shaft coupling 3, drive one end of torque signal coupling mechanism 4 to rotate thereupon.Rotatablely move and by torque signal coupling mechanism 4, elastic dowel pin shaft coupling 5, be passed to the transmission shaft 11 of test portion, make transmission shaft 11 under the restriction of two ends angular contact ball bearing 8,12, around its axis, rotate.The cooperation of the flat key 14 by transmission shaft 11 ends, screw thread, spline etc., makes it drive the zero type rubber seal 17 on exemplar a set of cups 18 and surface thereof jointly to rotate.By the measured zero type rubber seal 17 with non-smooth surface of torque signal coupling mechanism 4 is contrasted with the different torque values that the zero type rubber seal with smooth surface produces, try to achieve drag reducing efficiency, and drag-reduction effect is carried out to assessment argument.In addition, test exemplar in above-mentioned process of the test zero type rubber seal 17 is replaced by the solid of revolution rubber seal of rectangle or other cross sectional shapes, repeat above-mentioned test operation, also can realize thering is the test of elastomer rubber O-ring seal drag-reduction effect of other cross sectional shapes of non-smooth surface, with this, widen test range of application, meet the demand of in many ways testing.
In conjunction with Fig. 5,6 and 8, process of the test b is mainly comprised of boss 20, non-smooth surface exemplar 21, slip lid 26, test frictional plane 25, guide pole 24, pressure transducer 27, setscrew nut 29, leading screw 33, handle 35, leading screw support 31, tailstock framework 34, positive stop 39, bolt 37, pressing plate 36 and screw 19,23,28,30,32,38.Boss 20, by six uniform screws 19 of its left end, is connected with exemplar a set of cups 18 ends, and its other end fixedly has the test exemplar 21 of non-smooth surface by screw 23.Slip lid 26 left ends are fixed with test frictional plane 25, and inside is equipped with pressure transducer 27.In slip lid 26 surroundings, be evenly equipped with four through holes, and match with guide pole 24.In through hole inside and the equal oiling lubricating oil in guide pole 24 surface, pressure transducer 27 is measured the error producing when reducing hole axle relative sliding.Guide pole 24 is by four screws uniform on the circular flat of bottom 30 and tailstock framework 34 concrete mutuallies.Tailstock framework 34 passes through V-type rail translation on device pedestal 6 of its bottom, and by rectangular channel, bolt 37 and pressing plate 36, tailstock framework 34 is compressed and located with device pedestal 6.Tailstock framework 34 inside are fixed with two screw mandrel supports 31 that geomery is identical by screw 32, its objective is in order to guarantee the stationarity of leading screw 33 in transmittance process.Leading screw support 31 inside are helicitic texture, thereby match with leading screw 33.Leading screw 33 adopts triangle fine threads, is that lift angle is little because the pitch of fine thread is little, and self-locking property is better, transmits comparatively accurately, is applicable to vibrate or the connection of variable load and micromatic setting etc.Leading screw 33 left ends are smooth flat, contact with pressure transducer 27 ends, a positioning screw under relaxed state are housed, 29 near it.Leading screw 33 right parts are connected with handle 35, facilitate test operation personnel control to leading screw 33 amount of feeding in adjustment process.At device pedestal 6 afterbodys, there is one by two positive stops 39 that screw 38 is fixing, object is in order to prevent in test operation process, due to mishap, causes tailstock framework 34 excessively to right translation, thereby release unit track, causes unnecessary potential safety hazard.The test exemplar 21 with non-smooth surface is on smooth surface, to be processed with according to research contents, by certain regularly arranged pit or the structure of other shapes.
Process of the test b principle of work:
In process of the test b, first take out the test exemplar in process of the test a, i.e. zero type rubber seal 17, and again install other parts except zero type rubber seal 17.First, by tailstock framework 34 slowly to left, when test frictional plane 25 is when having distance between the test exemplar 21 of non-smooth surface and comparatively approach, stop the motion that moves to left of tailstock framework 34, and with bolt 37, pressing plate 36 and rectangular channel by tailstock framework 34 and device pedestal 6 concrete mutuallies.Then, rotate the handle 35 of tailstock framework 34 rear ends, utilize leading screw 33 to promote slip lid 26, pressure transducer 27 and the test frictional plane 25 of front end.When test frictional plane 25 contacts with the test exemplar 21 with non-smooth surface, reduce the rotational speed of handle 35, and then control the speed of feed of leading screw 33.Now, due to the pressure transducer 27 two ends power that is squeezed, thus will the certain force value of output, this force value is the compressive stress with 25 of the test exemplar 21 of non-smooth surface and test frictional plane.When the force value of exporting when pressure transducer 27 reaches the required force value of test, stop leading screw 33 feedings, and setscrew nut 29 is oppositely locked along leading screw 33 directions of feed, limit the feeding length of leading screw 33, and then guarantee to have the constant pressure of 25 of the test exemplar 21 of non-smooth surface and test frictional plane, for process of the test is after this prepared.Finally, by torque signal coupling mechanism 4, frequency converter 1 initialization in device, complete the preliminary work of process of the test b.Then, start frequency converter 1 and frequency modulation motor 2, utilize frequency converter 1, for frequency modulation motor 2 is set required rotating speed, and in whole process of the test, all according to above-mentioned rotation speed operation.During on-test, frequency modulation motor 2 output shaft rotations via elastic dowel pin shaft coupling 3, drive one end of torque signal coupling mechanism 4 to rotate thereupon.Rotatablely move and by torque signal coupling mechanism 4, elastic dowel pin shaft coupling 5, be passed to the transmission shaft 11 of test portion, make transmission shaft 11 under the restriction of two ends angular contact ball bearing 8,12, around its axis, rotate.The cooperation of the flat key 14 by transmission shaft 11 ends, screw thread, spline etc., makes it drive the rotation jointly with it of the fixing test exemplar 21 with non-smooth surface of exemplar a set of cups 18 end faces.By the measured test exemplar with non-smooth surface 21 of torque signal coupling mechanism 4 is contrasted with the different torque values that the test exemplar with smooth surface produces, try to achieve drag reducing efficiency, and drag-reduction effect is carried out to assessment argument.In addition, test exemplar 21 in this process of the test and test frictional plane 25 are changed to respective material attribute, repeat above-mentioned test operation, can realize the test to many-sided resistance reducing performances such as elastic body-elastic body, elastic body-rigid body, rigid body-elastic body and rigid body-rigid bodies, also can meet the testing requirements to the resistance reducing performance test of non-smooth surface-non-smooth surface.
Because this test character is contrastive test, therefore according to testing requirements, need to carry out many group tests to above-mentioned process of the test a and b, to realize the object of drag-reduction effect assessment.
Claims (8)
1. elastomer rubber O-ring seal drag reduction proving installation, it is characterized in that: comprise frequency modulation motor, frequency converter, torque signal coupling mechanism, rubber seal test unit, rubber seal test unit comprises device pedestal, transmission shaft, test cavity, frequency converter, frequency modulation motor, torque signal coupling mechanism, the left end of transmission shaft is connected successively, the right-hand member cover of transmission shaft has axle sleeve, transmission shaft is connected by flat key with axle sleeve, axle sleeve is positioned in test cavity, test cavity is fixed on device pedestal, match with test cavity through test cavity and by cavity angular contact ball bearing in the middle part of transmission shaft, axle sleeve external stability has exemplar a set of cups, exemplar a set of cups and test cavity inner wall clearance fit, on exemplar a set of cups, be provided with for the ring groove of elastomer rubber O-ring seal is installed, elastomer rubber O-ring seal contacts with test cavity inner wall after being arranged on ring groove, frequency modulation motor drives torque signal coupling mechanism and transmission shaft rotation under the effect of frequency converter, and then drives the rotation of exemplar a set of cups and elastomer rubber O-ring seal, thereby torque signal coupling mechanism obtains the torque value of elastomer rubber O-ring seal.
2. elastomer rubber O-ring seal drag reduction proving installation according to claim 1, it is characterized in that: permanent opening a set of cups on test cavity, opening a set of cups is between the left end and test cavity of transmission shaft, transmission shaft is through opening a set of cups, a set of cups angular contact ball bearing is installed on opening a set of cups, and transmission shaft matches with a set of cups angular contact ball bearing.
3. the integrated drag reduction proving installation of elastomer rubber O-ring seal/non-smooth surface, it is characterized in that: comprise frequency modulation motor, frequency converter, torque signal coupling mechanism, rubber seal test unit, non-smooth surface test unit, rubber seal test unit comprises device pedestal, transmission shaft, test cavity, frequency converter, frequency modulation motor, torque signal coupling mechanism, the left end of transmission shaft is connected successively, the right-hand member cover of transmission shaft has axle sleeve, transmission shaft is connected by flat key with axle sleeve, axle sleeve is positioned in test cavity, test cavity is fixed on device pedestal, match with test cavity through test cavity and by cavity angular contact ball bearing in the middle part of transmission shaft, axle sleeve external stability has exemplar a set of cups, exemplar a set of cups and test cavity inner wall clearance fit, on exemplar a set of cups, be provided with for the ring groove of elastomer rubber O-ring seal is installed, elastomer rubber O-ring seal contacts with test cavity inner wall after being arranged on ring groove, on exemplar a set of cups, be fixed for the boss of installation test exemplar, boss and test exemplar are all positioned at test cavity external body, when elastomer rubber O-ring seal being carried out to drag reduction experiment, frequency modulation motor drives torque signal coupling mechanism and transmission shaft rotation under the effect of frequency converter, and then drive the rotation of exemplar a set of cups and elastomer rubber O-ring seal, thereby torque signal coupling mechanism obtains the torque value of elastomer rubber O-ring seal, non-smooth surface test unit comprises tailstock framework, leading screw, guide pole, pressure transducer, test frictional plane, slip lid, guide pole is arranged on the left side of tailstock framework, slip lid is sleeved on guide pole, test friction surface is fixed on slip lid, leading screw is through tailstock framework, the left end of leading screw contacts with pressure transducer, pressure transducer is positioned in slip lid, when being moved to the left, leading screw can drive pressure transducer, slip lid and test friction surface are together moved to the left, tailstock frame installation is on device pedestal, tailstock framework is by V-type rail translation on device pedestal of its bottom, on device pedestal, be provided with rectangular channel, on tailstock framework, corresponding rectangular channel is provided with bolt hole, by bolt and rectangular channel, tailstock framework and device pedestal can be compressed to location, when non-smooth surface being carried out to drag reduction experiment, on the ring groove of exemplar a set of cups, uneasiness shoots gonosome rubber seal, movement by V-type rail and leading screw can make to test frictional plane and contact with test exemplar, frequency modulation motor drives torque signal coupling mechanism and transmission shaft rotation under the effect of frequency converter, and then motoring ring test exemplar rotation, thereby torque signal coupling mechanism obtains the torque value of test exemplar.
4. the integrated drag reduction proving installation of elastomer rubber O-ring seal/non-smooth surface according to claim 3, it is characterized in that: leading screw support is installed in tailstock framework, leading screw is through leading screw support, is provided with screw thread and the screw thread by separately matches on leading screw and leading screw support.
5. the integrated drag reduction proving installation of elastomer rubber O-ring seal/non-smooth surface according to claim 4, is characterized in that: leading screw adopts triangle fine thread.
6. according to the integrated drag reduction proving installation of the elastomer rubber O-ring seal/non-smooth surface described in claim 3-5, it is characterized in that: the right-hand member of device pedestal is provided with postioning abutment, thereby prevent coming off of tailstock framework.
7. according to the integrated drag reduction proving installation of the elastomer rubber O-ring seal/non-smooth surface described in claim 3-5, it is characterized in that: permanent opening a set of cups on test cavity, opening a set of cups is between the left end and test cavity of transmission shaft, transmission shaft is through opening a set of cups, a set of cups angular contact ball bearing is installed on opening a set of cups, and transmission shaft matches with a set of cups angular contact ball bearing.
8. the integrated drag reduction proving installation of elastomer rubber O-ring seal/non-smooth surface according to claim 6, it is characterized in that: permanent opening a set of cups on test cavity, opening a set of cups is between the left end and test cavity of transmission shaft, transmission shaft is through opening a set of cups, a set of cups angular contact ball bearing is installed on opening a set of cups, and transmission shaft matches with a set of cups angular contact ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310558447.6A CN103592218B (en) | 2013-11-12 | 2013-11-12 | The integrated drag reduction testing arrangement of elastomer rubber sealing ring drag reduction testing arrangement and elastomer rubber sealing ring/non-smooth surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310558447.6A CN103592218B (en) | 2013-11-12 | 2013-11-12 | The integrated drag reduction testing arrangement of elastomer rubber sealing ring drag reduction testing arrangement and elastomer rubber sealing ring/non-smooth surface |
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| Publication Number | Publication Date |
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| CN103592218A true CN103592218A (en) | 2014-02-19 |
| CN103592218B CN103592218B (en) | 2016-05-04 |
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| CN104913969A (en) * | 2015-05-22 | 2015-09-16 | 南京航空航天大学 | Biaxial tension-shear test part with matrix fiber bundle and preparation method thereof |
| CN104913975A (en) * | 2015-05-22 | 2015-09-16 | 南京航空航天大学 | Biaxial drawing-pressing test part with matrix fiber bundle and preparation method thereof |
| CN105372174A (en) * | 2015-11-04 | 2016-03-02 | 浙江工业大学 | Movable frictional resistance coefficient testing device |
| CN106596049A (en) * | 2017-01-23 | 2017-04-26 | 浙江工业大学 | Test device for non-smooth hydrofoil surface drag reduction effect test |
| CN106679898A (en) * | 2016-12-30 | 2017-05-17 | 南京理工大学 | Device used for testing high-speed revolution clearance seal performance |
| CN106938535A (en) * | 2017-05-09 | 2017-07-11 | 广东东晟密封科技有限公司 | A kind of full-automatic very smooth counting machine and its application method |
| CN110672243A (en) * | 2019-09-29 | 2020-01-10 | 北京动力机械研究所 | Testing device capable of adjusting air inlet and exhaust high-temperature dynamic seal friction force |
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| CN104913969A (en) * | 2015-05-22 | 2015-09-16 | 南京航空航天大学 | Biaxial tension-shear test part with matrix fiber bundle and preparation method thereof |
| CN104913975A (en) * | 2015-05-22 | 2015-09-16 | 南京航空航天大学 | Biaxial drawing-pressing test part with matrix fiber bundle and preparation method thereof |
| CN105372174A (en) * | 2015-11-04 | 2016-03-02 | 浙江工业大学 | Movable frictional resistance coefficient testing device |
| CN105372174B (en) * | 2015-11-04 | 2018-03-06 | 浙江工业大学 | A kind of packaged type coefficient of frictional resistance test device |
| CN106679898A (en) * | 2016-12-30 | 2017-05-17 | 南京理工大学 | Device used for testing high-speed revolution clearance seal performance |
| CN106596049A (en) * | 2017-01-23 | 2017-04-26 | 浙江工业大学 | Test device for non-smooth hydrofoil surface drag reduction effect test |
| CN106596049B (en) * | 2017-01-23 | 2023-03-31 | 浙江工业大学 | Testing device for testing drag reduction effect of non-smooth hydrofoil surface |
| CN106938535A (en) * | 2017-05-09 | 2017-07-11 | 广东东晟密封科技有限公司 | A kind of full-automatic very smooth counting machine and its application method |
| CN106938535B (en) * | 2017-05-09 | 2023-07-11 | 广东东晟密封科技有限公司 | Full-automatic smooth counter and use method thereof |
| CN110672243A (en) * | 2019-09-29 | 2020-01-10 | 北京动力机械研究所 | Testing device capable of adjusting air inlet and exhaust high-temperature dynamic seal friction force |
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