CN104198100B - Adopt the plunger pair friction measurement device that cylinder body rotates - Google Patents
Adopt the plunger pair friction measurement device that cylinder body rotates Download PDFInfo
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- CN104198100B CN104198100B CN201410380197.6A CN201410380197A CN104198100B CN 104198100 B CN104198100 B CN 104198100B CN 201410380197 A CN201410380197 A CN 201410380197A CN 104198100 B CN104198100 B CN 104198100B
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Abstract
Adopt the plunger pair friction measurement device of cylinder body rotation, mainly comprise spiral groove type capillary restrictor, floating lining, flow guiding dummy club, bulb dynamometry feeler lever, dynamometry connecting rod, connecting rod chuck, rotary type multi-dimension force sensor, wireless data acquisition device, cylinder body, oil duct is drawn in housing connection, pressure oil draws oil duct, hydrostatic support oil supplying hole. Three are drawn oil duct and the pressure oil in plunger cavity is introduced in the static pressure chamber of floating sleeve outer surface by hydrostatic support oil supplying hole at the spiral groove type capillary restrictor being circumferentially equally spaced by pressure oil, forming hydrostatic support assembly, simultaneously cylinder body cylinder in this plunger cavity region is offered housing on the surface and is connected and draws oil duct; The bulb of dynamometry feeler lever is embedded in floating lining, and by dynamometry connecting rod and connecting rod chuck, frictional force suffered by plunger is passed to rotary type multi-dimension force sensor; Wireless data acquisition device maintains static, and leaves minim gap with sensor, and data are spread out of by the cable on wireless data acquisition device.
Description
Technical field
The present invention relates to a kind of rotary plunger pair friction measurement device of axial plunger pump cylinder body, it is specially adapted to the plunger pair friction measurement of the little size axial plunger pump of aviation field mesohigh high speed.
Background technology
Axial plunger pump is owing to there being the advantage such as high power density, compact construction, it is widely used in all types of industries, civil equipment, high merit anharmonic ratio is realized for aviation ram pump and high-level efficiency especially important, the research therefore improving ram pump efficiency and energy-saving, service life prolonged aspect never stops. The principal element affecting ram pump efficiency is the frictionloss of friction pair, the frictionloss of high-speed overload operating mode lower plunger pair and the wear pattern of motion couple are even more serious, therefore propose a kind of plunger pair friction measurement device being applicable to little size axial plunger pump and how research are improved ram pump efficiency and merit anharmonic ratio has significance.
The single plunger structure that current existing plunger pair friction measurement device many employings swash plate rotates, high speed single plunger testing table, low speed single plunger testing table and metal to-metal contact single plunger testing table that Aachen, Germany polytechnical university builds all adopt fixing single plunger cavity configuration, the to-and-fro movement realizing single plunger and the motion rotated around own axes is rotated by swash plate, differing relatively big with plunger actual motion form, there is bigger distance in the highest rotating speed that can reach and aviation ram pump rotating speed. Although these devices can close to pump actual condition on pressure, but cylinder height frequency vibration, the plunger motion artifacts such as whirling motion in plunger cavity cannot be simulated, high-speed overload lower plunger centrifugal force be can not ignore simultaneously, and the measuring apparatus adopting swash plate to rotate cannot simulate the operating mode that plunger makes centrifugal motion.
In the research of the plunger pair friction measurement device adopting cylinder body to rotate, " Wesco pump " testing table that Purdue University of the U.S. builds and " model pump " testing table that Zhejiang University builds, all multi-dimension force sensor is arranged on cylinder body cylindrical surface, cylinder body is processed fairlead and through swash plate side hollow main shaft, data cable is drawn, sensor rotates with cylinder body with cable, there is data cable because high-speed rotary transfers the disconnected risk of mill, simultaneously owing to the space constraint of oilhole and fairlead is drawn in processing, this kind of measuring apparatus is not suitable for the ram pump of small size.
Summary of the invention
In order to ensure that tested plunger pair mode of motion is close to actual condition, the present invention provides a kind of plunger pair friction measurement device adopting cylinder body to rotate, be connected the impact drawing non-measured power suffered by oil structure reduction floating lining with housing by hydrostatic support, rotary type multi-dimension force sensor makes sensor wiring simple and reliable with installation mode.
The present invention is the technical scheme that its technical problem of solution adopts: a kind of plunger pair friction measurement device adopting cylinder body to rotate, comprise spiral groove type capillary restrictor, floating lining, flow guiding dummy club, bulb dynamometry feeler lever, dynamometry connecting rod, connecting rod chuck, rotary type multi-dimension force sensor, wireless data acquisition device, axial plunger pump cylinder body, return plate, spring collar, preloading spring, centrosphere cuts with scissors, the external circle roller bearing of cylinder, housing is connected and draws oil duct, pressure oil draws oil duct, valve plate, swash plate, hydrostatic support oil supplying hole, valve plate side hollow main shaft, swash plate side hollow main shaft, one of them plunger hole of axial plunger pump cylinder body processes flow guiding dummy club, flow guiding dummy club outer wall and floating lining inwall running fit, three are drawn oil duct and the pressure oil in plunger cavity is introduced in the cavity of floating sleeve outer surface by hydrostatic support oil supplying hole at the spiral groove type capillary restrictor being circumferentially equally spaced by the pressure oil on cylinder body, form hydrostatic support assembly, simultaneously cylinder body cylinder in this plunger cavity region is offered housing on the surface and is connected and draws oil duct, the bulb of dynamometry feeler lever coordinates the frictional force felt and survey plunger and the generation of floating lining with the circular hole offered in the middle part of floating lining, dynamometry connecting rod one end is threaded with bulb dynamometry feeler lever, the other end is fixed with the connecting rod chuck being arranged on rotary type multi-dimension force sensor, cylinder body rotarily drives dynamometry connecting rod, connecting rod chuck, swash plate side hollow main shaft and multi-dimension force sensor rotate around its center axis, wireless data acquisition device maintains static, and leave minim gap with sensor, data are spread out of by the cable on wireless data acquisition device.
Described floating sleeve outer surface circumferential direction evenly offers three static pressure chambeies and three return chutes, axially offers two row static pressure chambeies, amounts to six static pressure chambeies.
Described preloading spring is enclosed within the swash plate side hollow main shaft outside surface of bearing support cylinder body, and by spring collar side hold-down cylinder body and valve plate, another side compression centrosphere hinge and return plate, return plate and swash plate fixed gap are installed.
Described cylinder body is supported jointly by valve plate side hollow main shaft and swash plate side hollow main shaft, outer surface of cylinder block and roller bearing running fit, and the flanged structure of the external circle of cylinder limits moving axially of roller bearing simultaneously.
Plunger cavity number on described cylinder body is 2-7.
Present invention employs the rotary type multi-dimension force sensor of high rotating speed, big range, high precision, the plunger pair friction measurement device that the present invention adopts cylinder body to rotate that develops into of the rotary type multi-dimension force sensor of high rotating speed, big range, high precision provides favourable condition, owing to data cable arrangements does not need to operate with cylinder body in ram pump rotary components periphery, decrease the operation to cylinder body structure of modification, overall measurement structure is more simple and reliable, compact, has adapted to study the requirement of aviation field small-medium size high merit anharmonic ratio ram pump.
It is an advantage of the invention that: the mode adopting cylinder body to rotate ensure that plunger pair mode of motion is substantially constant, the hydrostatic support structure of floating lining is easy to realize with for pressure oil structure, and the change of cylinder body structure is less; Frictional force sense surveys that device is small and exquisite and compact construction, rotary type multi-dimension force sensor makes sensor wiring simple and reliable with installation mode, can realizing the plunger pair frictional force of high-voltage high-speed axial plunger pump measuring small volume, one-piece construction is convenient to dismantle and is tested to change different plunger simultaneously.
Accompanying drawing explanation
Fig. 1 is the general assembly drawing of the present invention.
Fig. 1 (b) is the partial enlargement figure in the I portion of Fig. 1.
Fig. 2 is the sectional view of the axis of the present invention.
Fig. 3 is the oil supply structure schematic diagram of the hydrostatic support of the present invention.
Fig. 4 is the static pressure cavity configuration schematic diagram of the floating lining of the present invention.
In figure: 1. spiral groove type capillary restrictor, 2. floating lining, 3. flow guiding dummy club, 4. bulb dynamometry feeler lever, 5. dynamometry connecting rod, 6. connecting rod chuck, 7. rotary type multi-dimension force sensor, 8. wireless data acquisition device, 9. axial plunger pump cylinder body, 10. return plate, 11. spring collars, 12. preloading springs, 13. centrosphere hinges, the 14. external circle roller bearings of cylinder, 15. housings are connected and draw oil duct, 16. pressure oils draw oil duct, 17. valve plates, 18. swash plates, 19. hydrostatic support oil supplying holes, 20. valve plate side hollow main shafts, 21. swash plate side hollow main shafts.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Such as Fig. 1, Fig. 2, shown in Fig. 3, the present invention comprises spiral groove type capillary restrictor 1, floating lining 2, flow guiding dummy club 3, bulb dynamometry feeler lever 4, dynamometry connecting rod 5, connecting rod chuck 6, rotary type multi-dimension force sensor 7, wireless data acquisition device 8, axial plunger pump cylinder body 9, return plate 10, spring collar 11, preloading spring 12, centrosphere hinge 13, the external circle roller bearing 14 of cylinder, housing is connected and draws oil duct 15, pressure oil draws oil duct 16, valve plate 17, swash plate 18, hydrostatic support oil supplying hole 19, valve plate side hollow main shaft 20, swash plate side hollow main shaft 21, one of them plunger hole of axial plunger pump cylinder body 9 be extended to can with floating lining 2 running fit, process flow guiding dummy club 3, flow guiding dummy club 3 outer wall and floating lining 2 inwall running fit simultaneously. with this plunger hole concentric circumferentially equidistantly install three spiral groove type capillary restrictors 1, cylinder body 9 has three pressure oils and draws oil duct 16, each current regulator 1 one end is drawn oil duct 16 with three pressure oils on cylinder body 9 and is connected, the other end is connected with the hydrostatic support oil supplying hole 19 on cylinder body 9, hydrostatic support oil supplying hole 19 on cylinder body 9 static pressure chamber with floating lining 2 outside surface is connected respectively, thus pressure oil in plunger cavity draws oil duct 16 by pressure oil introduces with hydrostatic support oil supplying hole 19 in the static pressure chamber of floating lining 2 outside surface and form hydrostatic support assembly, simultaneously cylinder body 9 cylinder in this plunger cavity region is offered housing on the surface and is connected and draws oil duct 15, floating lining 2 both ends of the surface are made all to bear housing oil liquid pressure, therefore floating lining 2 almost only floats in axial and circumferential direction by plunger actuation. the bulb of dynamometry feeler lever 4 coordinates the power felt and survey lining 2 and float in axial and circumferential direction and produce with the circular hole offered in the middle part of floating lining 2, dynamometry connecting rod 5 one end is threaded with bulb dynamometry feeler lever 4, the other end is fixed through the swash plate side hollow main shaft 21 of bearing support cylinder body 9 with connecting rod chuck 6, connecting rod chuck 6 is screwed on rotary type multi-dimension force sensor 7, cylinder body 9, dynamometry connecting rod 5, connecting rod chuck 6, swash plate side hollow main shaft 21 is installed with multi-dimension force sensor 7 coaxial line, dynamometry connecting rod 5 is driven when cylinder body 9 rotates, connecting rod chuck 6, swash plate side hollow main shaft 21 rotates around common center axis with multi-dimension force sensor 7. wireless data acquisition device 8 maintains static, and leaves minim gap with sensor 7, and data are spread out of by the cable on wireless data acquisition device 8. as shown in Figure 4, floating lining 2 outside surface circumferential direction evenly offers three static pressure chambeies and three return chutes, axially offers two row static pressure chambeies, amounts to six static pressure chambeies.
Processing two sections of spiral slots on each spiral groove type capillary restrictor 1, spiral groove end is connected with two hydrostatic support oil supplying holes 19 on cylinder body 9 respectively. In the axial direction, two row static pressure chambeies reduce floating lining 2 axis inclined degree, and in radial directions, three equally distributed static pressure chambeies help floating lining 2 and plunger cavity to the heart.
Described preloading spring 12 is enclosed within swash plate side hollow main shaft 21 outside surface of bearing support cylinder body 9, and by spring collar 11 side hold-down cylinder body 9 and valve plate 17, another side compression centrosphere hinge 13 and return plate 10, return plate 10 is installed with swash plate 18 fixed gap.
Described cylinder body 9 is supported jointly by valve plate side hollow main shaft 20 and swash plate side hollow main shaft 21, cylinder body 9 outside surface and roller bearing 14 running fit, and the flanged structure of cylinder body 9 outer ring limits moving axially of roller bearing 14 simultaneously.
Plunger cavity number on described cylinder body 9 is 2-7.
Content described in this specification sheets embodiment is only enumerating of the way of realization to invention design; protection scope of the present invention should not be regarded as being only limitted to the specific form that embodiment is stated, protection scope of the present invention is also and the equivalent technologies means can expected according to present inventive concept in those skilled in the art.
Claims (2)
1. adopt the plunger pair friction measurement device that cylinder body rotates, it is characterized in that: comprise spiral groove type capillary restrictor (1), floating lining (2), flow guiding dummy club (3), bulb dynamometry feeler lever (4), dynamometry connecting rod (5), connecting rod chuck (6), rotary type multi-dimension force sensor (7), wireless data acquisition device (8), axial plunger pump cylinder body (9), return plate (10), spring collar (11), preloading spring (12), centrosphere hinge (13), the external circle roller bearing (14) of cylinder, housing is connected and draws oil duct (15), pressure oil draws oil duct (16), valve plate (17), swash plate (18), hydrostatic support oil supplying hole (19), valve plate side hollow main shaft (20), swash plate side hollow main shaft (21),
One of them plunger hole of axial plunger pump cylinder body (9) processes flow guiding dummy club (3), flow guiding dummy club (3) outer wall and floating lining (2) inwall running fit, three are drawn oil duct (16) with hydrostatic support oil supplying hole (19) by the cavity of pressure oil introducing floating lining (2) outside surface in plunger cavity at the spiral groove type capillary restrictor (1) being circumferentially equally spaced by the pressure oil on axial plunger pump cylinder body (9), form hydrostatic support assembly, simultaneously axial plunger pump cylinder body (9) cylinder in this plunger cavity region is offered housing on the surface and is connected and draws oil duct (15),
The circular hole that the bulb of dynamometry feeler lever (4) and floating lining (2) middle part is offered coordinates feels survey plunger and frictional force that floating lining (2) produces, dynamometry connecting rod (5) one end is threaded with bulb dynamometry feeler lever (4), the other end is fixed with the connecting rod chuck (6) being arranged on rotary type multi-dimension force sensor (7), axial plunger pump cylinder body (9) rotarily drives dynamometry connecting rod (5), connecting rod chuck (6), swash plate side hollow main shaft (21) and rotary type multi-dimension force sensor (7) rotate around its center axis, wireless data acquisition device (8) maintains static, and leave minim gap with rotary type multi-dimension force sensor (7), data are spread out of by the cable on wireless data acquisition device (8),
Described floating lining (2) outside surface circumferential direction evenly offers three static pressure chambeies and three return chutes, axially offers two row static pressure chambeies, amounts to six static pressure chambeies;
Described preloading spring (12) is enclosed within swash plate side hollow main shaft (21) outside surface of supporting axial plunger pump cylinder body (9), axial plunger pump cylinder body (9) and valve plate (17) is compressed by spring collar (11) side, another side compression centrosphere hinge (13) and return plate (10), return plate (10) is installed with swash plate (18) fixed gap;
Described axial plunger pump cylinder body (9) is supported jointly by valve plate side hollow main shaft (20) and swash plate side hollow main shaft (21), axial plunger pump cylinder body (9) outside surface and roller bearing (14) running fit, the flanged structure of axial plunger pump cylinder body (9) outer ring limits moving axially of roller bearing (14) simultaneously.
2. the plunger pair friction measurement device that employing cylinder body according to claim 1 rotates, it is characterised in that: the plunger cavity number on described axial plunger pump cylinder body (9) is 2-7.
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| CN201410380197.6A CN104198100B (en) | 2014-08-04 | 2014-08-04 | Adopt the plunger pair friction measurement device that cylinder body rotates |
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| CN201410380197.6A CN104198100B (en) | 2014-08-04 | 2014-08-04 | Adopt the plunger pair friction measurement device that cylinder body rotates |
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| CN104198100B true CN104198100B (en) | 2016-06-01 |
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Families Citing this family (11)
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| CN104865071B (en) * | 2015-06-04 | 2017-05-10 | 安徽工业大学 | Device and method for testing performances of plunger-copper sleeve friction pair |
| CN105181205B (en) * | 2015-09-09 | 2017-07-07 | 浙江大学 | A kind of axial force test device of high-voltage high-speed axial plunger pump plunger pair four |
| US10281388B2 (en) | 2015-12-18 | 2019-05-07 | Ducom Instruments Pvt. Ltd. | Tester to estimate co-efficient of friction and determine properties of a sample lubricant |
| CN107991009A (en) * | 2016-10-26 | 2018-05-04 | 天津市浩航科技有限公司 | Automobile using butt plate pressometer |
| CN110439798B (en) * | 2019-07-19 | 2020-08-11 | 北京航空航天大学 | Simulation measurement test bed for lateral force of plunger movement of high-speed plunger pump |
| CN110567705B (en) * | 2019-07-26 | 2021-03-23 | 中国北方车辆研究所 | Distribution friction pair performance simulation test device based on floating disc |
| CN111852806A (en) * | 2020-06-17 | 2020-10-30 | 中国中元国际工程有限公司 | Grouting pump for runway snow melting composite pipe and working method of grouting pump |
| CN112643544B (en) * | 2020-12-23 | 2022-09-13 | 南京肯迈得机床制造有限公司 | Friction force detection method for travelling mill |
| CN113008718B (en) * | 2021-03-23 | 2023-04-28 | 太原科技大学 | Axial plunger pump flow distribution pair test device and method |
| CN114033660B (en) * | 2021-12-01 | 2023-10-31 | 兰州理工大学 | Crank rocker type single plunger pair high-efficiency energy-saving abrasion test bed for high-power plunger pump |
| CN115597854B (en) * | 2022-12-14 | 2023-03-31 | 浙江大学 | Inner curve hydraulic motor roller-plunger friction pair testing device and testing method |
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