CN104359651A - Visual testing method of variable filling factor dynamic behavior of hydraulic retarder - Google Patents
Visual testing method of variable filling factor dynamic behavior of hydraulic retarder Download PDFInfo
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- CN104359651A CN104359651A CN201410719653.5A CN201410719653A CN104359651A CN 104359651 A CN104359651 A CN 104359651A CN 201410719653 A CN201410719653 A CN 201410719653A CN 104359651 A CN104359651 A CN 104359651A
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Abstract
The invention provides a visual testing method of a variable filling factor dynamic behavior of a hydraulic retarder, belongs to the technical field of hydraulic retarders and relates to a visual testing method of a variable filling factor dynamic behavior of a hydraulic retarder. Steps and methods of obtaining dynamic feature parameters of a driving wheel rotating speed, a brake torque, a circulating circle filling factor, a hydraulic retarder outlet pressure and a speed field feature by a rotating speed torque meter, a material level sensor, a pressure sensor, a PIV (Positive Infinitely Variable) system and a data acquiring and processing system are used for sequentially obtaining accurate data of influences of conditions for change of combination of the driving wheel rotating speed and the variable circle filling factor to three features of the brake torque, the outlet pressure and the speed field of the hydraulic retarder, so that the problem that accurate quantized data of influences of the driving wheel rotating speed and the circulating circle filling factor to an internal flowing characteristic, an external torque characteristic and the outlet pressure can not be obtained is solved, and a technical means is provided for researching a filling two-phase flowing simulating method of the hydraulic retarder part, an internal and external feature mutual influence relationship and an influence of a control condition to the internal feature.
Description
Technical field
The invention belongs to hydraulic retarder technical field, be specifically related to a kind of for hydraulic retarder topping up braking procedure dynamic perfromance Visualization method.
Background technology
1, the application of hydraulic retarder and development
Hydraulic retarder is fluid-flywheel clutch i
tBthe special shape of=0, its circulate circle is made up of two kinds of impellers, and the impeller of rotation is called driving wheel, and fixed impeller is called fixed wheel.Its principle of work is: during work, driving wheel is with drive shaft turns, and when being filled with liquid, the mechanical energy of input is hydraulic energy by driving wheel, makes liquid stream with high-speed punching to fixed wheel blade; Fixed wheel does not rotate, and forms the resistance of fluid flowing, produces retarding torque and hydraulic energy is all changed into heat energy with this.The braking moment of hydraulic retarder can be represented by following formula: Mk=λ γ kn
2da
5, the rotating speed that the severe that wherein λ is is fluid by the structure of speed reduction unit, the moment coefficient of liquid filled ratio decision, γ k, n are speed reduction unit driving wheel, Da are speed reduction unit circulation diameter of a circle.
Hydraulic retarder is mainly used in vehicle auxiliary braking, is vehicle auxiliry brake most widely used at present, is usually assemblied on city bus, load truck, superior automobile, long-term for vehicle, lasting lower long slope braking.Eighties of last century the eighties, external advanced country develops and combines using high speed, high-power hydraulic retarder the technology realizing permanent braking moment with mechanical brake as auxiliary brake in high-end vehicle, hydraulic retarder keeps permanent moment of torsion to slow down at high velocity (i.e. > 1/2Vmax) partially fluid-filled, bear the braking energy of the whole braking procedure 50%-75% of vehicle, reach the security improving high vehicle speeds and the object reducing mechanical brake loss.In recent years, exploitation has more broad applicability AT automatic transmission in succession both at home and abroad, automatic Transmissions Technique combines with hydraulic retarder partially fluid-filled technology by high-grade wheeled vehicle, achieves automatic navigation of vehicle, promoted widespread use and the development of wheeled vehicle further.Hydraulic retarder braking procedure control technology is the core link of above two kinds of advanced technologies application, and nearly more than ten years, China carried out that correlation technique is imitative grinds always, but not yet formed autonomy-oriented technology and product.
2, hydraulic retarder topping up braking procedure dynamic test
At present, for China's hydraulic retarder braking procedure or performance experimental study mainly external characteristics test namely test the test of rotating speed-torque characteristics, wherein mainly study low speed, fully fluid-filled operating mode (actual maximum topping up state may not be full of completely).In recent years, in order to break through the key link that hydraulic retarder partially fluid-filled braking procedure moment of torsion controls, carry out the topping up brake test of some typical hydraulic retarder fundamental modes successively, have studied in test the experimental study of top hole pressure, chamber pressure and braking torque relation under different filling amount condition, but in test cannot record actual filling amount, can only obtain the larger λ of filling amount larger, determine that structure has and determine that lambda max values and cavity pressure and moment of torsion have the research conclusions such as relevance, research work intermittently, do not quantize, tool is not regular.
3, the development of hydrodynamic unit Visualization
Abroad, the visuality of widespread use PIV technology, solves the complicated technical problem in various field.Domestic, PIV technology is applied to the interior flow field test of fluid torque-converter and fluid-flywheel clutch, obtains the related data of Flow Field Distribution rule and Changing Pattern.Fluid-flywheel clutch damped condition principle of work is similar to hydraulic retarder, but because concrete structure difference, required test test parameter are different, application requires different, cause hydraulic retarder Visualization difficulty comparatively large, cannot implement.
Hydraulic retarder braking procedure Visualization Major Difficulties is: (1) hydraulic retarder is typically employed in frame mode blade being arranged turnover oil duct, cause flow field structure very complicated, need more multithread field data Describing Motion, all bring larger difficulty to the selection of test zone, high-speed camera, simultaneously data total amount increased sharply, post-processing difficulty increases, higher to the configuration requirement of hardware device; (2) hydraulic retarder braking procedure is exactly process kinetic energy being converted to heat energy, this and fluid torque-converter and fluid coupling have essential distinction, the severest consequences caused are temperature rises that a large amount of heating causes sharply, the experimental prototype of the resin transparent material always existed can be made to aggravate further by Thermal cracking, problem on deformation, therefore, the Visualization of hydraulic retarder cannot be implemented always; (3) there are rotating speed, filling amount two kinds of condition changing factors in hydraulic retarder dynamic characteristic test, there is non-fully fluid-filled state, emphasize transient changing, existing PIV means performance difficulty.
The national defence patent " a kind of hydraulic retarder flow field pick-up unit " applied for, application number is 201218000646.1, propose a kind of hydraulic retarder visual test device detected for flow field, this patent mainly describes structure and the basic functional principle of this device.
Summary of the invention
The technical matters that the present invention solves is, provides a kind of hydraulic retarder and becomes liquid filled ratio dynamic perfromance Visualization method; Namely a kind of hydraulic retarder fixed rotating speed-change liquid filled ratio dynamic perfromance Visualization method is provided, and a kind of hydraulic retarder variable speed-change liquid filled ratio dynamic perfromance Visualization method.Comprising, the structure of the design proposal of hydraulic system, the arrangement of transmission stand, transparent hydraulic retarder, solve driving wheel rotating speed, circulate circle liquid filled ratio can not the problem of precise quantification to internal flow characteristics and external torque properties influence, meet the urgent need of hydraulic retarder topping up braking procedure inside and outside technical characteristic relation checking.
Technical scheme of the present invention is, a kind of hydraulic retarder becomes liquid filled ratio dynamic perfromance Visualization method, and the method step is as follows: step one:
First, the height of liquid level in the circulate circle liquid filled ratio of hydraulic retarder flow field pick-up unit and circulate circle is demarcated:
A. be filled with according to the circulate circle of regulation in table 1 ratio-from left to right order that capacity accounts for total volume, in hydraulic retarder flow field, pick-up unit inner chamber is filled with the aqueous medium determining capacity, simultaneously with the height of liquid level in material level gauge test hydraulic retarder circulate circle, and by test result record A1-A10 position in Table 1;
B. according to all test results, liquid filled ratio-liquid level curve is drawn;
Table 1 is as follows:
| The capacity of being filled with accounts for the ratio (%) of total volume | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
| The height (mm) of liquid level in circulate circle | A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 | A10 |
Then, hydraulic retarder flow field pick-up unit aqueous medium circular flow is adjusted:
A. adjust water pump surplus valve (39) aperture of hydraulic system, make water pump surplus valve (39) working pressure reach 20kPa;
B. adjust throttling valve (38) aperture of hydraulic system, make throttling valve (38) by 10% of aqueous medium flow >=hydraulic retarder flow field pick-up unit total volume;
C. water outlet surplus valve (28) aperture of hydraulic system is adjusted, the aqueous medium flow making hydraulic retarder flow field pick-up unit flow to and discharge is consistent, and makes aqueous medium circular flow be 10% ± 1% of hydraulic retarder flow field pick-up unit total volume;
Step 2:
A. throttle valve opening is adjusted, the aqueous medium flow flowing to hydraulic retarder flow field pick-up unit after making adjustment is 1.5 times of the b step aqueous medium flow in step one in " then ", make a mark at throttle valve adjustment position I, then throttle valve opening recalled to the b step state in step one in " then ";
B. according to liquid filled ratio-liquid level curve, to hydraulic retarder flow field pick-up unit inner chamber preliminary filling aqueous medium, with the height of liquid level in material level gauge test loop circle, reach 10% ± 1% place according to liquid filled ratio-liquid level curve adjustment hydraulic retarder flow field pick-up unit Inner eycle circle liquid filled ratio;
C, primer fluid pressing system, and make aqueous medium circular flow be 10% ± 1% of hydraulic retarder flow field pick-up unit total volume;
D, by rotating speed twist counter, material level gauge, water tank temperature sensor, leaving water temperature sensors, flow of inlet water sensor, water flow sensor, intake pressure sensor, discharge pressure sensor connection data acquisition system, starting data acquisition system (DAS) makes it normally work, and starts to gather driving wheel rotating speed, moment of torsion, circulate circle liquid filled ratio, water tank temperature, leaving water temperature, flow of inlet water, water flow, intake pressure, discharge pressure;
E, startup PIV system, possess the condition of instant shooting test zone flow velocity image;
F, start the driving motor of transmission test stand, make the driving wheel rotating speed of hydraulic retarder flow field pick-up unit rise to test speed W, W=100, steady running 60s when first time operates this step;
G, PIV system starts to take test zone flow velocity image, throttle valve opening is adjusted to mark I position simultaneously; Be full of to hydraulic retarder flow field pick-up unit circulate circle, discharge pressure raises suddenly;
H, control PIV system stop shooting, driving motor shutdown, hydraulic closure system, data acquisition system (DAS) to stop record.
I, according to the operating mode of table No. 4 from 2 to 20, follow the test speed W (r/min) from little to large order correspondence, repeat step c to step h,
Table 4
| Test speed W (r/min) | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 |
| Operating mode number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Test speed (r/min) | 1100 | 1200 | 1300 | 1400 | 1500 | 1600 | 1700 | 1800 | 1900 | 2000 |
| Operating mode number | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
J, liquid filled ratio-change in torque curve, moment of torsion-discharge pressure relation curve when setting up same rotational speed; Velocity field flow velocity size and Flow Field Distribution data under acquisition fixed rotating speed-change liquid filled ratio.
A kind of hydraulic retarder becomes liquid filled ratio dynamic perfromance Visualization method, and the method step is as follows:
Step one:
First, the height of liquid level in the circulate circle liquid filled ratio of hydraulic retarder flow field pick-up unit and circulate circle is demarcated:
A. be filled with according to the circulate circle of regulation in table 1 ratio-from left to right order that capacity accounts for total volume, in hydraulic retarder flow field, pick-up unit circulate circle inner chamber is filled with the aqueous medium determining capacity, simultaneously with the height of liquid level in material level gauge test hydraulic retarder circulate circle, and by test result record A1-A10 position in Table 1;
B. according to all test results, liquid filled ratio-liquid level curve is drawn;
Table 1 is as follows:
| The capacity of being filled with accounts for the ratio (%) of total volume | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
| The height (mm) of liquid level in circulate circle | A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 | A10 |
Then, hydraulic retarder flow field pick-up unit aqueous medium circular flow is adjusted:
A. adjust water pump surplus valve (39) aperture of hydraulic system, make water pump surplus valve (39) working pressure reach 20kPa;
B. adjust throttling valve (38) aperture of hydraulic system, make throttling valve (38) by 10% of flow >=hydraulic retarder flow field pick-up unit total volume;
C. water outlet surplus valve (28) aperture of hydraulic system is adjusted, the aqueous medium flow making hydraulic retarder flow field pick-up unit flow to and discharge is consistent, and makes aqueous medium circular flow be 10% ± 1% of hydraulic retarder flow field pick-up unit total volume.
Step 2:
A. adjust water outlet surplus valve aperture, follow to 10 from 1 according to the sequence number of table 5 and carry out water outlet surplus valve export pressure calibration from the little export pressure (kPa) to large order correspondence, and make a mark at water outlet surplus valve regulator site;
Table 5
| Sequence number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Export pressure (kPa) | 20 | 40 | 60 | 80 | 100 | 120 | 140 | 160 | 180 | 200 |
| Mark | I | II | III | IV | V | VI | VII | VIII | IX | X |
B. according to liquid filled ratio-liquid level curve, to hydraulic retarder flow field pick-up unit inner chamber preliminary filling aqueous medium, with the height of liquid level in material level gauge test loop circle, reach 10% ± 1% place according to liquid filled ratio-liquid level curve adjustment hydraulic retarder flow field pick-up unit Inner eycle circle liquid filled ratio;
C. the operating mode specified according to table 6 to 200, is followed from little to the export pressure of large order correspondence and tests initial rotating speed W number from 1 s, repeat following steps d to step j
Table 6
D, primer fluid pressing system make it normally work, and make aqueous medium circular flow be 10% ± 1% of hydraulic retarder flow field pick-up unit total volume;
E, by rotating speed twist counter, material level gauge, water tank temperature sensor, leaving water temperature sensors, flow of inlet water sensor, water flow sensor, intake pressure sensor, discharge pressure sensor connection data acquisition system, starting data acquisition system (DAS) makes it normally work, and starts to gather driving wheel rotating speed, moment of torsion, the circulate circle liquid filled ratio height of liquid level (or in circulate circle), water tank temperature, leaving water temperature, flow of inlet water, water flow, intake pressure, discharge pressure;
F, startup PIV system make it normally work, and possess the condition of instant shooting test zone flow velocity image;
The driving motor of g, startup transmission test stand, makes the driving wheel rotating speed of hydraulic retarder flow field pick-up unit rise to test initial rotating speed W, steady running 60s;
H, water outlet surplus valve aperture is adjusted to and determines mark position; This mark position illustrates the value of export pressure corresponding to the test initial rotating speed W of g step;
I, water outlet surplus valve start overflow, and PIV system starts to take test zone flow velocity image, adjust driving motor rotating speed simultaneously and make the initial rotating speed W of test with 20r/min
2retarded velocity evenly reduce rotating speed until shut down;
J, control PIV system stop shooting, driving motor shutdown, hydraulic closure system, data acquisition system (DAS) to stop record.
Beneficial effect of the present invention is:
1. the present invention is with transparent hydraulic retarder for hydraulic retarder flow field pick-up unit, defines in fixed rotating speed-fixing liquid filled ratio brake test, variable speed-fixing liquid filled ratio brake test, fixed rotating speed-change liquid filled ratio brake test, in variable speed-change liquid filled ratio brake test (i.e. moment of torsion Control experiment) four pilot projects, by rotating speed twist counter, material level gauge, pressure transducer, PIV system, data acquisition and processing system, test, gather, obtain driving wheel rotating speed, braking torque, circulate circle liquid filled ratio, hydraulic retarder top hole pressure, the step and method of velocity field feature five dynamic characteristic parameters, obtains driving wheel rotating speed successively and circulate circle liquid filled ratio four kinds combines change condition to hydraulic retarder braking torque, top hole pressure, the precise information of velocity field three properties influence, solves and cannot obtain driving wheel rotating speed, circulate circle liquid filled ratio is to internal flow characteristics, external torque characteristic and top hole pressure affect the problem of precise quantification data, are more deep research hydraulic retarder partially fluid-filled diphasic flow emulation mode, inside and outside trait-treatment interaction relation, the impact etc. of controlled condition on internal characteristic provides technological means.
Accompanying drawing explanation
Fig. 1 is the hydraulic system principle figure that a kind of hydraulic retarder of the present invention becomes liquid filled ratio/fixing liquid filled ratio dynamic perfromance Visualization method;
Fig. 2 is the transmission test stand schematic diagram that a kind of hydraulic retarder of the present invention becomes liquid filled ratio/fixing liquid filled ratio dynamic perfromance Visualization method;
Fig. 3 is the material level gauge schematic diagram that the present invention uses.
Wherein, 1-water tank temperature sensor, 2-motor, 3-motor and water pump coupler, 4-water tank temperature sensor connector, 5-water tank, 6-water pump suction pipe, 7-pump sump mouth joint, 8-water pump, 9-water pump surplus valve joint I, 10-water pump surplus valve joint II, 11-water pump surplus valve drain connection, 12-water pump surplus valve tapping pipe I, 13-hydraulic retarder flow field pick-up unit, 14-throttling valve joint I, 15-throttling valve joint II, 16-flow of inlet water sensor connector I, 17-flow of inlet water sensor connector II, 18-hydraulic retarder water inlet, 19-hydraulic retarder water delivering orifice (has A, B, C, D mouth), 20-discharge pressure sensor, 21-hydraulic retarder rising pipe I, 22-water flow sensor connector I, 23-water flow sensor, 24-water flow sensor connector II, 25-hydraulic retarder rising pipe II, 26-leaving water temperature sensors, 27-water outlet surplus valve joint I, 28-water outlet surplus valve, 29-water outlet surplus valve joint II, 30-water outlet surplus valve tapping pipe, 31-water outlet surplus valve drain connection, 32-hydraulic retarder water inlet pipe I, 33-intake pressure sensor, 34-pressure transducer three-way connection (has A, B, C mouth), 35-hydraulic retarder water inlet pipe II, 36-flow of inlet water sensor, 37-hydraulic retarder water inlet pipe III, 38-throttling valve, 39-water pump surplus valve, 40-hydraulic retarder water inlet pipe IV, 41-water pump surplus valve tapping pipe II, 42-water feeding of water pump three-way connection (has A, B, C mouth), 43-hydraulic retarder water inlet pipe V, 44-pump outlet joint, 45-driving motor, 46-first shaft coupling, 47-rotating speed twist counter, 48-second shaft coupling, 49 hydraulic retarder flow field pick-up unit and supports thereof.
Embodiment
Below in conjunction with accompanying drawing, a kind of hydraulic retarder topping up of the present invention braking procedure dynamic perfromance Visualization method is described further.
As shown in Figure 1, the hydraulic system (abbreviation hydraulic system) of a kind of hydraulic retarder topping up of the present invention braking procedure dynamic perfromance Visualization method comprises: water tank temperature sensor 1, motor 2, motor and water pump coupler 3, water tank temperature sensor connector 4, water tank 5, water pump suction pipe 6, pump sump mouth joint 7, water pump 8, water pump surplus valve joint I 9, water pump surplus valve joint II 10, water pump surplus valve drain connection 11, water pump surplus valve tapping pipe I 12, hydraulic retarder flow field pick-up unit 13, throttling valve joint I 14, throttling valve joint II 15, flow of inlet water sensor connector I 16, flow of inlet water sensor connector II 17, hydraulic retarder water inlet 18, hydraulic retarder water delivering orifice (has A, B, C, D mouth) 19, discharge pressure sensor 20, hydraulic retarder rising pipe I 21, water flow sensor connector I 22, water flow sensor 23, water flow sensor connector II24, hydraulic retarder rising pipe II25, leaving water temperature sensors 26, water outlet surplus valve joint I 27, water outlet surplus valve 28, water outlet surplus valve joint II29, water outlet surplus valve tapping pipe 30, water outlet surplus valve drain connection 31, hydraulic retarder water inlet pipe I32, intake pressure sensor 33, pressure transducer three-way connection (has A, B, C mouth) 34, hydraulic retarder water inlet pipe II35, flow of inlet water sensor 36, hydraulic retarder water inlet pipe III37, throttling valve 38, water pump surplus valve 39, hydraulic retarder water inlet pipe IV40, water pump surplus valve tapping pipe II41, water feeding of water pump three-way connection (has A, B, C mouth) 42, hydraulic retarder water inlet pipe V43, pump outlet joint 44.
Water tank temperature sensor connector 4 loads water tank 5, and water tank temperature sensor 1 is screwed into water tank temperature sensor connector 4; Motor 2 is arranged on water tank 5, motor loads motor 2 with water pump coupler 3 one end, one end is connected with water pump 8, pump sump mouth joint 7 and pump outlet joint 44 load water pump 8, water pump suction pipe 6 one end is connected with pump sump mouth joint 7, water tank 5 is put in one end, and hydraulic retarder water inlet pipe V 43 one end is connected with pump outlet joint 44, one end is connected with the A mouth of water feeding of water pump three-way connection 42; Water pump surplus valve drain connection 11 is contained on water tank 5, water pump surplus valve joint I 9 and water pump surplus valve joint II 10 loads water pump surplus valve 39, water pump surplus valve tapping pipe 12 one end is connected with water pump surplus valve drain connection 11, one end is connected with water pump surplus valve joint II 10, and water pump surplus valve tapping pipe II 41 one end is connected with water pump surplus valve joint I 9, one end is connected with the B mouth of water feeding of water pump three-way connection 42; Throttling valve joint I 14 and throttling valve joint II 15 loads throttling valve 38, and hydraulic retarder water inlet pipe IV 40 one end is connected with the C mouth of water feeding of water pump three-way connection 42, one end is connected with throttling valve joint I 14; Flow of inlet water sensor connector I 16 and flow of inlet water sensor connector II 17 loads flow of inlet water sensor 36, and hydraulic retarder water inlet pipe III 37 one end is connected with throttling valve joint II 15, one end is connected with flow of inlet water sensor connector I 16; Hydraulic retarder water inlet pipe II 35 one end is connected with flow of inlet water sensor connector II 17, one end is connected with the A mouth of pressure transducer three-way connection 34, and the B mouth of pressure transducer three-way connection 34 is connected with intake pressure sensor 33; The A end of hydraulic retarder water inlet 18 and hydraulic retarder water delivering orifice 19 loads hydraulic retarder flow field pick-up unit 13, hydraulic retarder water inlet pipe I 32 one end is connected with hydraulic retarder water inlet 18, one end is connected with the C mouth of pressure transducer three-way connection 34, and the B end of hydraulic retarder water delivering orifice 19 is connected with discharge pressure sensor 20, the C of hydraulic retarder water delivering orifice 19 holds and is connected with leaving water temperature sensors 26; Water flow sensor connector I 22 and water flow sensor connector II 24 loads water flow sensor 23, and water outlet surplus valve joint I 27 and water outlet surplus valve joint II 29 loads water outlet surplus valve 28; Hydraulic retarder rising pipe I 21 one end hold with the D of hydraulic retarder water delivering orifice 19 be connected, one end is connected with water flow sensor connector I 22, hydraulic retarder rising pipe II 25 one end is connected with water flow sensor connector II 24, one end is connected with water outlet surplus valve joint I 27; Water outlet surplus valve drain connection 31 loads water tank 5, and water outlet surplus valve tapping pipe 30 one end is connected with water outlet surplus valve joint II 29, one end is connected with water outlet surplus valve drain connection 31.
Hydraulic work system process: add in pure water by the alundum (Al2O3) trace particle of diameter 40 μm, as working water medium (abbreviation aqueous medium).Aqueous medium is added in water tank 5, to water tank 2/3rds At The Height, detect aqueous medium temperature in water tank with water tank temperature sensor 1; Motor 2 drives water pump 8 to rotate by motor and water pump coupler 3, the aqueous medium having pressure discharged by water pump 8, enters hydraulic retarder flow field pick-up unit 13 by hydraulic retarder water inlet pipe V 43, hydraulic retarder water inlet pipe IV 40, throttling valve 38, hydraulic retarder water inlet pipe III 37, flow of inlet water sensor 36, hydraulic retarder water inlet pipe II 35, hydraulic retarder water inlet pipe I 32, hydraulic retarder water inlet 18; Mechanical energy is aqueous medium hydraulic energy by the wheel rotation of hydraulic retarder flow field pick-up unit 13, and aqueous medium is with the fixed wheel blade of high-speed punching to hydraulic retarder flow field pick-up unit 13; Fixed wheel does not rotate, and forms the resistance of aqueous medium flowing, produces retarding torque aqueous medium hydraulic energy is all changed into aqueous medium heat energy with this; High-temperature water medium is discharged from the D mouth of hydraulic retarder water delivering orifice 19, through hydraulic retarder rising pipe I 21, water flow sensor 23, hydraulic retarder rising pipe II 25, water outlet surplus valve 28 working hole, water outlet surplus valve tapping pipe 30, gets back to water tank 5; Water pump surplus valve 39 regulates the top hole pressure of water pump 8, and throttling valve 38 regulates the supply flow rate of water pump 8, and water outlet surplus valve 28 regulates the discharge pressure of aqueous medium in hydraulic retarder flow field pick-up unit 13; Flow of inlet water sensor 36 enters the aqueous medium flow of hydraulic retarder flow field pick-up unit 13 for detecting, intake pressure sensor 33 enters the aqueous medium pressure of hydraulic retarder flow field pick-up unit 13 for detecting, the aqueous medium flow of hydraulic retarder discharged by water flow sensor 23 for detecting, the aqueous medium pressure of hydraulic retarder discharged by discharge pressure sensor 20 for detecting, water tank temperature sensor 1 is for detecting aqueous medium temperature in water tank 5, and leaving water temperature sensors 26 is for detecting the aqueous medium temperature of hydraulic retarder flow field pick-up unit 13 discharge.Hydraulic retarder flow field pick-up unit 13 can adopt the patent name described in background technology to be hydraulic retarder flow field pick-up unit (abbreviation hydraulic retarder) in the application documents of " a kind of hydraulic retarder flow field pick-up unit " (application number is 201218000646.1).
As shown in Figure 2, the transmission test stand (being called for short transmission test stand) of a kind of hydraulic retarder topping up of the present invention braking procedure dynamic perfromance Visualization method comprises: driving motor 45, first shaft coupling 46, rotating speed twist counter 47, second shaft coupling 48, hydraulic retarder flow field pick-up unit and support 49 thereof.
The output shaft of driving motor 45 is connected with the first shaft coupling 46 left end, the left end of the first shaft coupling 46 right-hand member and rotating speed twist counter 47 is fixed, right-hand member and second shaft coupling 48 left end of rotating speed twist counter 47 are fixed, second shaft coupling 48 right-hand member is connected with the input shaft of the hydraulic retarder flow field pick-up unit in hydraulic retarder flow field pick-up unit and support 49 thereof, and five arrange point-blank.
The transmission test stand course of work: driving motor 45 starts, its output shaft rotation drives the input shaft synchronous axial system of the hydraulic retarder flow field pick-up unit in the first shaft coupling 46, rotating speed twist counter 47, second shaft coupling 48, hydraulic retarder flow field pick-up unit and support 49 thereof, reaches test speed.
Material level gauge (i.e. radar levelmeter), as shown in Figure 3, by the microwave pulse that antenna transmission is extremely narrow, this pulse microwave at spatial with the light velocity, is reflected back on measured medium surface, is received by the same antenna.Transponder pulse microwave was directly proportional to the distance of antenna to measured medium surface to the time interval receiving microwave, namely the distance distance D on material surface is directly proportional to the time stroke T of pulse: D=C × T/2 wherein C is the light velocity, because the distance E of slack tank is known, then thing position L=E-D.Material level gauge inserts in the auxiliary chamber of fluid of hydraulic retarder flow field pick-up unit, with the height of liquid level in material level gauge test hydraulic retarder circulate circle.The use of material level gauge device is prior art.
PIV system (i.e. laser particle image speed measurement system) mainly comprises dual pulse welding, CCD camera, synchro control, hardware controlling, Data Acquisition & Processing Software bag, for measuring instantaneous two dimension or three-dimensional flow field velocity distribution.First small tracer grain is sprinkled among flowing during measurement, these particles can follow fluid motion completely, then laser beam is expanded to sheet light, flow field regions to be measured twice is illuminated with the very short recurrent interval, twice irradiation is recorded by across a vertical frame dimension point rate CCD camera respectively, by Data Acquisition & Processing Software bag, pre-service and flow image analysis are carried out to image data, obtain flow velocity size and the Flow Field Distribution of shooting area.Namely by PIV system, pre-service and flow image analysis are carried out to image data, obtain flow velocity size and the Flow Field Distribution of shooting area.PIV system and device is prior art, and using method adopts prior art.
When data acquisition and processing system normally works, by rotating speed twist counter, material level gauge, water tank temperature sensor, leaving water temperature sensors, flow of inlet water sensor, water flow sensor, intake pressure sensor, discharge pressure sensor test to data acquisition and store, and carry out data processing to obtain rotating speed by process software, moment of torsion, circulate circle liquid filled ratio (height being tested liquid level in hydraulic retarder circulate circle by material level gauge obtains circulate circle liquid filled ratio), water tank temperature, leaving water temperature, flow of inlet water, water flow, intake pressure, the test figures such as discharge pressure.
A kind of hydraulic retarder topping up braking procedure dynamic perfromance Visualization method of the present invention, comprises a kind of hydraulic retarder fixed rotating speed-fixing liquid filled ratio dynamic perfromance Visualization method, a kind of hydraulic retarder variable speed-fixing liquid filled ratio dynamic perfromance Visualization method, a kind of hydraulic retarder fixed rotating speed-change liquid filled ratio dynamic perfromance Visualization method, a kind of hydraulic retarder variable speed-change liquid filled ratio dynamic perfromance Visualization method four parts.
Before all tests, need to test preparation as follows:
First, the height of liquid level in the circulate circle liquid filled ratio of hydraulic retarder flow field pick-up unit 13 and circulate circle is demarcated:
A. be filled with according to the circulate circle of regulation in table 1 ratio-from left to right order that capacity accounts for (circulate circle) total volume, in hydraulic retarder flow field, pick-up unit (circulate circle) inner chamber is filled with the aqueous medium determining capacity, simultaneously with the height of liquid level in material level gauge test hydraulic retarder circulate circle, and by test result record A1-A10 position in Table 1; (circulate circle that the hydraulic retarder fixed wheel of hydraulic retarder flow field pick-up unit and driving wheel are formed)
B. according to all test results, draw liquid filled ratio-liquid level curve, and by this result input data acquisition and processing system, complete the optimum configurations of circulate circle liquid filled ratio.
Table 1 liquid filled ratio-liquid level relation table
Then, hydraulic retarder flow field pick-up unit aqueous medium circular flow is adjusted:
A. adjust water pump surplus valve 39 aperture of hydraulic system, make water pump surplus valve 39 working pressure reach 20kPa;
B. adjust throttling valve 38 aperture of hydraulic system, make throttling valve 38 by 10% of flow >=hydraulic retarder flow field pick-up unit total volume;
C. water outlet surplus valve 28 aperture of hydraulic system is adjusted, the aqueous medium flow (i.e. aqueous medium circular flow) making hydraulic retarder flow field pick-up unit flow to and discharge is consistent, and make aqueous medium circular flow be hydraulic retarder flow field pick-up unit total volume be 10% ± 1%.
Above-mentioned steps is to adjust hydraulic retarder flow field pick-up unit aqueous medium circular flow, making it reach recurrent state.
1. the concrete steps of hydraulic retarder fixed rotating speed-fixing liquid filled ratio dynamic perfromance Visualization method are as follows:
A. aqueous medium is filled with to the whole inner chamber of hydraulic retarder flow field pick-up unit 13, with the height of liquid level in material level gauge test loop circle, according to liquid filled ratio-liquid level curve adjustment hydraulic retarder flow field pick-up unit Inner eycle circle liquid filled ratio K to setting;
B. primer fluid pressing system makes it normally work, and makes aqueous medium circular flow be 10% ± 1% of hydraulic retarder flow field pick-up unit total volume;
C. by rotating speed twist counter, material level gauge, water tank temperature sensor, leaving water temperature sensors, flow of inlet water sensor, water flow sensor, intake pressure sensor, discharge pressure sensor connection data acquisition system; Starting data acquisition system (DAS) makes it normally work, and starts to gather driving wheel rotating speed, moment of torsion, circulate circle liquid filled ratio (height being tested liquid level in hydraulic retarder circulate circle by material level gauge obtains circulate circle liquid filled ratio), water tank temperature, leaving water temperature, flow of inlet water, water flow, intake pressure, discharge pressure;
D. starting PIV system makes it normally work, and possesses the condition of instant shooting test zone flow velocity image;
E. start the driving motor 45 of transmission test stand, make the driving wheel rotating speed of hydraulic retarder flow field pick-up unit rise to test speed W, steady running 60s;
F.PIV system starts to take test zone flow velocity image, continues shooting 30s;
G. control PIV system stops shooting, driving motor 45 is shut down, hydraulic closure system, data acquisition system (DAS) stop record.
H. the operating mode specified according to table 2 to 200, is followed and is tested to the liquid filled ratio K of large order correspondence and the value of test speed W from little, repetition step a to g number from 1 s.
Table 2 hydraulic retarder fixed rotating speed-fixing liquid filled ratio dynamic perfromance Visualization operating mode table
The test figure that i, disposal data sampling and processing system obtain, rotating speed-liquid filled ratio change curve, moment of torsion-discharge pressure relation curve during rotating speed during liquid filled ratio when setting up same rotational speed-change in torque curve, identical liquid filled ratio-change in torque curve, same torque; Arrange the flow velocity image that PIV system acquisition arrives, velocity field flow velocity size and Flow Field Distribution data under acquisition fixed rotating speed-fixing liquid filled ratio.
2. the concrete steps of a hydraulic retarder variable speed-fixing liquid filled ratio dynamic perfromance Visualization method and method:
A. aqueous medium is filled with to the hydraulic retarder flow field whole inner chamber of pick-up unit, with the height of liquid level in material level gauge test loop circle, according to liquid filled ratio-liquid level curve adjustment hydraulic retarder flow field pick-up unit Inner eycle circle liquid filled ratio K to setting, K=100 when first time operates this step;
B. primer fluid pressing system makes it normally work, and makes aqueous medium circular flow be 10% ± 1% of hydraulic retarder flow field pick-up unit total volume;
C.. by rotating speed twist counter, material level gauge, water tank temperature sensor, leaving water temperature sensors, flow of inlet water sensor, water flow sensor, intake pressure sensor, discharge pressure sensor connection data acquisition system, starting data acquisition system (DAS) makes it normally work, and starts to gather driving wheel rotating speed, moment of torsion, circulate circle liquid filled ratio, water tank temperature, leaving water temperature, flow of inlet water, water flow, intake pressure, discharge pressure;
D. starting PIV system makes it normally work, and possesses the condition of instant shooting test zone flow velocity image;
E. start the driving motor (45) of transmission test stand, make the driving wheel rotating speed of hydraulic retarder flow field pick-up unit rise to the initial rotating speed W of test, W=100, steady running 60s when first time operates this step;
F.PIV system starts to take test zone flow velocity image, adjusts driving motor rotating speed simultaneously and makes test speed with 20r/min
2retarded velocity evenly reduce rotating speed until shut down;
G. control PIV system stops shooting, driving motor (45) shutdown, hydraulic closure system, data acquisition system (DAS) to stop record.
H, the operating mode that specifies according to table 3 to 200, are followed and are tested from little to the liquid filled ratio K of large order correspondence and the value of testing initial rotating speed W number from 1 s.Repeat above-mentioned steps a to g,
Table 3 hydraulic retarder variable speed-fixing liquid filled ratio dynamic perfromance Visualization operating mode table
The test figure that I, disposal data sampling and processing system obtain, rotating speed-change in torque curve, moment of torsion-discharge pressure relation curve when setting up identical liquid filled ratio; Arrange the flow velocity image that PIV system acquisition arrives, velocity field flow velocity size and Flow Field Distribution data under acquisition variable speed-fixing liquid filled ratio.
3. the concrete steps of hydraulic retarder fixed rotating speed-change liquid filled ratio dynamic perfromance Visualization method and method:
A. throttle valve opening is adjusted, the aqueous medium flow flowing to hydraulic retarder flow field pick-up unit after making adjustment is (b step in step one in " then ") before adjustment 1.5 times, make a mark at throttle valve adjustment position I, then throttle valve opening recalled to test standby condition (the b step state in step one in " then ");
B. according to liquid filled ratio-liquid level curve, to hydraulic retarder flow field pick-up unit inner chamber preliminary filling aqueous medium, with the height of liquid level in material level gauge test loop circle, reach 10% ± 1% place according to liquid filled ratio-liquid level curve adjustment hydraulic retarder flow field pick-up unit Inner eycle circle liquid filled ratio;
C, primer fluid pressing system make it normally work, and make aqueous medium circular flow be 10% ± 1% of hydraulic retarder flow field pick-up unit total volume;
D. by rotating speed twist counter, material level gauge, water tank temperature sensor, leaving water temperature sensors, flow of inlet water sensor, water flow sensor, intake pressure sensor, discharge pressure sensor connection data acquisition system, starting data acquisition system (DAS) makes it normally work, and starts to gather driving wheel rotating speed, moment of torsion, the circulate circle liquid filled ratio height of liquid level (or in circulate circle), water tank temperature, leaving water temperature, flow of inlet water, water flow, intake pressure, discharge pressure;
E, startup PIV system make it normally work, and possess the condition of instant shooting test zone flow velocity image;
F, start the driving motor of transmission test stand, make the driving wheel rotating speed of hydraulic retarder flow field pick-up unit rise to test speed W, W=100, steady running 60s when first time operates this step;
G, PIV system starts to take test zone flow velocity image, throttle valve opening is adjusted to mark I position simultaneously; Be full of to hydraulic retarder flow field pick-up unit circulate circle, discharge pressure raises suddenly;
H, control PIV system stop shooting, driving motor shutdown, hydraulic closure system, data acquisition system (DAS) to stop record.
I, the operating mode that specifies according to table 4 are to 20 number from 2 s, and follow and test from the little test speed W (r/min) to large order correspondence, step c is to step h in repetition,
Table 4 hydraulic retarder variable speed-fixing liquid filled ratio dynamic perfromance Visualization operating mode table
J. the test figure that disposal data sampling and processing system obtains, liquid filled ratio-change in torque curve, moment of torsion-discharge pressure relation curve when setting up same rotational speed; Arrange the flow velocity image that PIV system acquisition arrives, velocity field flow velocity size and Flow Field Distribution data under acquisition fixed rotating speed-change liquid filled ratio.
4. the concrete steps of hydraulic retarder variable speed-change liquid filled ratio dynamic perfromance Visualization method and a method,
A. adjust water outlet surplus valve aperture, follow to 10 from 1 according to the sequence number of table 5 and carry out water surplus valve export pressure calibration from the little export pressure (kPa) to large order correspondence, and make a mark at water outlet surplus valve regulator site.
Table 5 hydraulic retarder water outlet surplus valve export pressure calibration table
B. according to liquid filled ratio-liquid level curve, to hydraulic retarder flow field pick-up unit inner chamber preliminary filling aqueous medium, with the height of liquid level in material level gauge test loop circle, reach 10% ± 1% place according to liquid filled ratio-liquid level curve adjustment hydraulic retarder flow field pick-up unit Inner eycle circle liquid filled ratio;
C. the operating mode specified according to table 6 to 200, is followed from little to the export pressure of large order correspondence and tests initial rotating speed W and test, repeating following steps d to step j number from 1 s
Table 6 hydraulic retarder variable speed-change liquid filled ratio dynamic perfromance Visualization operating mode table
D primer fluid pressing system makes it normally work, and makes aqueous medium circular flow be 10% ± 1% of hydraulic retarder flow field pick-up unit total volume;
E is by rotating speed twist counter, material level gauge, water tank temperature sensor, leaving water temperature sensors, flow of inlet water sensor, water flow sensor, intake pressure sensor, discharge pressure sensor connection data acquisition system, starting data acquisition system (DAS) makes it normally work, and starts to gather driving wheel rotating speed, moment of torsion, the circulate circle liquid filled ratio height of liquid level (or in circulate circle), water tank temperature, leaving water temperature, flow of inlet water, water flow, intake pressure, discharge pressure;
F starts PIV system makes it normally work, and possesses the condition of instant shooting test zone flow velocity image;
G starts the driving motor of transmission test stand, makes the driving wheel rotating speed of hydraulic retarder flow field pick-up unit rise to test initial rotating speed W, steady running 60s;
Water outlet surplus valve aperture is adjusted to and determines mark position by h; This mark position illustrates export force value corresponding to the test initial rotating speed W of g step;
I water outlet surplus valve starts overflow, and PIV system starts to take test zone flow velocity image, adjusts driving motor rotating speed simultaneously and makes the initial rotating speed W of test evenly reduce rotating speed with the retarded velocity of 20r/min2 until shut down;
J control PIV system stops shooting, driving motor shutdown, hydraulic closure system, data acquisition system (DAS) to stop record.
Claims (7)
1. hydraulic retarder becomes a liquid filled ratio dynamic perfromance Visualization method, and it is characterized in that, the method step is as follows:
Step one:
First, the height of liquid level in the circulate circle liquid filled ratio of hydraulic retarder flow field pick-up unit and circulate circle is demarcated:
A. be filled with according to the circulate circle of regulation in table 1 ratio-from left to right order that capacity accounts for total volume, in hydraulic retarder flow field, pick-up unit inner chamber is filled with the aqueous medium determining capacity, simultaneously with the height of liquid level in material level gauge test hydraulic retarder circulate circle, and by test result record A1-A10 position in Table 1;
B. according to all test results, liquid filled ratio-liquid level curve is drawn;
Table 1 is as follows:
Then, hydraulic retarder flow field pick-up unit aqueous medium circular flow is adjusted:
A. adjust water pump surplus valve (39) aperture of hydraulic system, make water pump surplus valve (39) working pressure reach 20kPa;
B. adjust throttling valve (38) aperture of hydraulic system, make throttling valve (38) by 10% of aqueous medium flow >=hydraulic retarder flow field pick-up unit total volume;
C. water outlet surplus valve (28) aperture of hydraulic system is adjusted, the aqueous medium flow making hydraulic retarder flow field pick-up unit flow to and discharge is consistent, and makes aqueous medium circular flow be 10% ± 1% of hydraulic retarder flow field pick-up unit total volume;
Step 2:
A. throttle valve opening is adjusted, the aqueous medium flow flowing to hydraulic retarder flow field pick-up unit after making adjustment is 1.5 times of the b step aqueous medium flow in step one in " then ", make a mark at throttle valve adjustment position I, then throttle valve opening recalled to the b step state in step one in " then ";
B. according to liquid filled ratio-liquid level curve, to hydraulic retarder flow field pick-up unit inner chamber preliminary filling aqueous medium, with the height of liquid level in material level gauge test loop circle, reach 10% ± 1% place according to liquid filled ratio-liquid level curve adjustment hydraulic retarder flow field pick-up unit Inner eycle circle liquid filled ratio;
C, primer fluid pressing system, and make aqueous medium circular flow be 10% ± 1% of hydraulic retarder flow field pick-up unit total volume;
D, by rotating speed twist counter, material level gauge, water tank temperature sensor, leaving water temperature sensors, flow of inlet water sensor, water flow sensor, intake pressure sensor, discharge pressure sensor connection data acquisition system, starting data acquisition system (DAS) makes it normally work, and starts to gather driving wheel rotating speed, moment of torsion, circulate circle liquid filled ratio, water tank temperature, leaving water temperature, flow of inlet water, water flow, intake pressure, discharge pressure;
E, startup PIV system, possess the condition of instant shooting test zone flow velocity image;
F, start the driving motor of transmission test stand, make the driving wheel rotating speed of hydraulic retarder flow field pick-up unit rise to test speed W, W=100, steady running 60s when first time operates this step;
G, PIV system starts to take test zone flow velocity image, throttle valve opening is adjusted to mark I position simultaneously; Be full of to hydraulic retarder flow field pick-up unit circulate circle, discharge pressure raises suddenly;
H, control PIV system stop shooting, driving motor shutdown, hydraulic closure system, data acquisition system (DAS) to stop record.
I, according to the operating mode of table No. 4 from 2 to 20, follow the test speed W (r/min) from little to large order correspondence, repeat step c to step h,
Table 4
J, liquid filled ratio-change in torque curve, moment of torsion-discharge pressure relation curve when setting up same rotational speed; Velocity field flow velocity size and Flow Field Distribution data under acquisition fixed rotating speed-change liquid filled ratio.
2. hydraulic retarder becomes a liquid filled ratio dynamic perfromance Visualization method, and it is characterized in that, the method step is as follows:
Step one:
First, the height of liquid level in the circulate circle liquid filled ratio of hydraulic retarder flow field pick-up unit and circulate circle is demarcated:
A. be filled with according to the circulate circle of regulation in table 1 ratio-from left to right order that capacity accounts for total volume, in hydraulic retarder flow field, pick-up unit circulate circle inner chamber is filled with the aqueous medium determining capacity, simultaneously with the height of liquid level in material level gauge test hydraulic retarder circulate circle, and by test result record A1-A10 position in Table 1;
B. according to all test results, liquid filled ratio-liquid level curve is drawn;
Table 1 is as follows:
Then, hydraulic retarder flow field pick-up unit aqueous medium circular flow is adjusted:
A. adjust water pump surplus valve (39) aperture of hydraulic system, make water pump surplus valve (39) working pressure reach 20kPa;
B. adjust throttling valve (38) aperture of hydraulic system, make throttling valve (38) by 10% of flow >=hydraulic retarder flow field pick-up unit total volume;
C. water outlet surplus valve (28) aperture of hydraulic system is adjusted, the aqueous medium flow making hydraulic retarder flow field pick-up unit flow to and discharge is consistent, and makes aqueous medium circular flow be 10% ± 1% of hydraulic retarder flow field pick-up unit total volume.
Step 2:
A. adjust water outlet surplus valve aperture, follow to 10 from 1 according to the sequence number of table 5 and carry out water outlet surplus valve export pressure calibration from the little export pressure (kPa) to large order correspondence, and make a mark at water outlet surplus valve regulator site;
Table 5
B. according to liquid filled ratio-liquid level curve, to hydraulic retarder flow field pick-up unit inner chamber preliminary filling aqueous medium, with the height of liquid level in material level gauge test loop circle, reach 10% ± 1% place according to liquid filled ratio-liquid level curve adjustment hydraulic retarder flow field pick-up unit Inner eycle circle liquid filled ratio;
C. the operating mode specified according to table 6 to 200, is followed from little to the export pressure of large order correspondence and tests initial rotating speed W number from 1 s, repeat following steps d to step j
Table 6
D, primer fluid pressing system make it normally work, and make aqueous medium circular flow be 10% ± 1% of hydraulic retarder flow field pick-up unit total volume;
E, by rotating speed twist counter, material level gauge, water tank temperature sensor, leaving water temperature sensors, flow of inlet water sensor, water flow sensor, intake pressure sensor, discharge pressure sensor connection data acquisition system, starting data acquisition system (DAS) makes it normally work, and starts to gather driving wheel rotating speed, moment of torsion, the circulate circle liquid filled ratio height of liquid level (or in circulate circle), water tank temperature, leaving water temperature, flow of inlet water, water flow, intake pressure, discharge pressure;
F, startup PIV system make it normally work, and possess the condition of instant shooting test zone flow velocity image;
The driving motor of g, startup transmission test stand, makes the driving wheel rotating speed of hydraulic retarder flow field pick-up unit rise to test initial rotating speed W, steady running 60s;
H, water outlet surplus valve aperture is adjusted to and determines mark position; This mark position illustrates the value of export pressure corresponding to the test initial rotating speed W of g step;
I, water outlet surplus valve start overflow, and PIV system starts to take test zone flow velocity image, adjust driving motor rotating speed simultaneously and make the initial rotating speed W of test with 20r/min
2retarded velocity evenly reduce rotating speed until shut down;
J, control PIV system stop shooting, driving motor shutdown, hydraulic closure system, data acquisition system (DAS) to stop record.
3. a kind of hydraulic retarder described in claim 1 or 2 becomes the hydraulic system that liquid filled ratio dynamic perfromance Visualization method adopts, and it is characterized in that, comprises water tank temperature sensor (1), motor (2), motor and water pump coupler (3), water tank temperature sensor connector (4), water tank, water pump suction pipe (6), pump sump mouth joint (7), water pump (8), water pump surplus valve joint I (9), water pump surplus valve joint II (10), water pump surplus valve drain connection (11), water pump surplus valve tapping pipe I (12), hydraulic retarder flow field pick-up unit (13), throttling valve joint I (14), throttling valve joint II (15), flow of inlet water sensor connector I (16), flow of inlet water sensor connector II (17), hydraulic retarder water inlet (18), hydraulic retarder water delivering orifice (19), discharge pressure sensor (20), hydraulic retarder rising pipe I (21), water flow sensor connector I (22), water flow sensor (23), water flow sensor connector II (24), hydraulic retarder rising pipe II (25), leaving water temperature sensors (26), water outlet surplus valve joint I (27), water outlet surplus valve (28), water outlet surplus valve joint II (29), water outlet surplus valve tapping pipe (30), water outlet surplus valve drain connection (31), hydraulic retarder water inlet pipe I (32), intake pressure sensor (33), pressure transducer three-way connection (34), hydraulic retarder water inlet pipe II (35), flow of inlet water sensor (36), hydraulic retarder water inlet pipe III (37), throttling valve (38), water pump surplus valve (39), hydraulic retarder water inlet pipe IV (40), water pump surplus valve tapping pipe II (41), water feeding of water pump three-way connection (42), hydraulic retarder water inlet pipe V (43), pump outlet joint (44),
Water tank temperature sensor connector loads water tank, and water tank temperature sensor is screwed into water tank temperature sensor connector; Motor is arranged on water tank, motor loads motor with water pump coupler one end, one end is connected with water pump, pump sump mouth joint and pump outlet joint load water pump, water pump suction pipe one end is connected with pump sump mouth joint, water tank is put in one end, and hydraulic retarder water inlet pipe V one end is connected with pump outlet joint, one end is connected with the A mouth of water feeding of water pump three-way connection; Water pump surplus valve drain connection is contained on water tank, water pump surplus valve joint I and water pump surplus valve joint II loads water pump surplus valve, water pump surplus valve tapping pipe one end is connected with water pump surplus valve drain connection, one end is connected with water pump surplus valve joint II, and water pump surplus valve tapping pipe II one end is connected with water pump surplus valve joint I, one end is connected with the B mouth of water feeding of water pump three-way connection; Throttling valve joint I and throttling valve joint II loads throttling valve, and hydraulic retarder water inlet pipe IV one end is connected with the C mouth of water feeding of water pump three-way connection, one end is connected with throttling valve joint I; Flow of inlet water sensor connector I and flow of inlet water sensor connector II loads flow of inlet water sensor, and hydraulic retarder water inlet pipe III one end is connected with throttling valve joint II, one end is connected with flow of inlet water sensor connector I; Hydraulic retarder water inlet pipe II one end is connected with flow of inlet water sensor connector II, one end is connected with the A mouth of pressure transducer three-way connection, and the B mouth of pressure transducer three-way connection is connected with intake pressure sensor; The A end of hydraulic retarder water inlet and hydraulic retarder water delivering orifice loads hydraulic retarder flow field pick-up unit, hydraulic retarder water inlet pipe I one end is connected with hydraulic retarder water inlet, one end is connected with the C mouth of pressure transducer three-way connection, and the B end of hydraulic retarder water delivering orifice is connected with discharge pressure sensor, the C of hydraulic retarder water delivering orifice holds and is connected with leaving water temperature sensors; Water flow sensor connector I and water flow sensor connector II loads water flow sensor, and water outlet surplus valve joint I and water outlet surplus valve joint II loads water outlet surplus valve; Hydraulic retarder rising pipe I one end hold with the D of hydraulic retarder water delivering orifice be connected, one end is connected with water flow sensor connector I, hydraulic retarder rising pipe II one end is connected with water flow sensor connector II, one end is connected with water outlet surplus valve joint I; Water outlet surplus valve drain connection loads water tank, and water outlet surplus valve tapping pipe one end is connected with water outlet surplus valve joint II, one end is connected with water outlet surplus valve drain connection.
4. a kind of hydraulic retarder described in claim 1 or 2 becomes the transmission test stand that liquid filled ratio dynamic perfromance Visualization method adopts, it is characterized in that, comprise: driving motor (45), first shaft coupling (46), rotating speed twist counter (47), second shaft coupling (48), hydraulic retarder flow field pick-up unit and support (49) thereof: driving motor starts, its output shaft rotation drives the first shaft coupling, rotating speed twist counter, second shaft coupling, the input shaft synchronous axial system of the hydraulic retarder flow field pick-up unit in hydraulic retarder flow field pick-up unit and support (49) thereof, reach test speed or test initial speed.
5. a kind of hydraulic retarder according to claim 1,2,3 or 4 becomes liquid filled ratio dynamic perfromance Visualization method, it is characterized in that, with the height of liquid level in the pick-up unit circulate circle of material level gauge test hydraulic retarder flow field.
6. a kind of hydraulic retarder according to claim 1,2,3 or 4 becomes liquid filled ratio dynamic perfromance Visualization method, it is characterized in that, draw the result input data acquisition system (DAS) of liquid filled ratio-liquid level curve, complete the optimum configurations of circulate circle liquid filled ratio.
7. a kind of hydraulic retarder according to claim 1,2,3 or 4 becomes liquid filled ratio dynamic perfromance Visualization method, it is characterized in that, by PIV system, pre-service and flow image analysis are carried out to image data, obtain flow velocity size and the Flow Field Distribution of shooting area.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036033A (en) * | 2018-01-19 | 2018-05-15 | 吉林大学 | High-strength transparence fluid-flywheel clutch device is used in PIV tests |
| CN114813102A (en) * | 2022-05-06 | 2022-07-29 | 中国北方车辆研究所 | Hydraulic retarder test data processing and analyzing method |
| CN116620247A (en) * | 2023-07-19 | 2023-08-22 | 清华大学 | Hydraulic retarder braking moment prediction method and device based on double pressure sensors |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7527338B2 (en) * | 2005-09-02 | 2009-05-05 | General Motors Corporation | Hydrodynamic retarder control apparatus |
| CN103048114A (en) * | 2012-12-19 | 2013-04-17 | 浙江大学 | Testing device and method for three-dimensional PIV (Particle Image Velocimetry) internal flow field testing system of hydraulic retarder |
| CN103323236A (en) * | 2013-06-19 | 2013-09-25 | 重庆红宇精密工业有限责任公司 | Method for testing performance of hydraulic torque converter constant rotating speed |
| CN203643162U (en) * | 2013-11-17 | 2014-06-11 | 陕西子竹电子有限公司 | Test bench frame for hydrodynamic torque converter |
| WO2014098711A1 (en) * | 2012-12-18 | 2014-06-26 | Scania Cv Ab | Cooling system in a vehicle |
| CN104133077A (en) * | 2014-07-22 | 2014-11-05 | 吉林大学 | Particle image velocity measurement testing device for testing internal flow field of retarder |
-
2014
- 2014-12-03 CN CN201410719653.5A patent/CN104359651B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7527338B2 (en) * | 2005-09-02 | 2009-05-05 | General Motors Corporation | Hydrodynamic retarder control apparatus |
| WO2014098711A1 (en) * | 2012-12-18 | 2014-06-26 | Scania Cv Ab | Cooling system in a vehicle |
| CN103048114A (en) * | 2012-12-19 | 2013-04-17 | 浙江大学 | Testing device and method for three-dimensional PIV (Particle Image Velocimetry) internal flow field testing system of hydraulic retarder |
| CN103323236A (en) * | 2013-06-19 | 2013-09-25 | 重庆红宇精密工业有限责任公司 | Method for testing performance of hydraulic torque converter constant rotating speed |
| CN203643162U (en) * | 2013-11-17 | 2014-06-11 | 陕西子竹电子有限公司 | Test bench frame for hydrodynamic torque converter |
| CN104133077A (en) * | 2014-07-22 | 2014-11-05 | 吉林大学 | Particle image velocity measurement testing device for testing internal flow field of retarder |
Non-Patent Citations (2)
| Title |
|---|
| 吴超 等: "车辆液力缓速器的特点分析及发展趋势", 《车辆与动力技术》 * |
| 魏巍 等: "液力减速器制动性能及其两相流分析方法研究", 《北京理工大学学报 》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036033A (en) * | 2018-01-19 | 2018-05-15 | 吉林大学 | High-strength transparence fluid-flywheel clutch device is used in PIV tests |
| CN108036033B (en) * | 2018-01-19 | 2023-10-10 | 吉林大学 | High-strength transparent fluid coupling device for PIV test |
| CN114813102A (en) * | 2022-05-06 | 2022-07-29 | 中国北方车辆研究所 | Hydraulic retarder test data processing and analyzing method |
| CN116620247A (en) * | 2023-07-19 | 2023-08-22 | 清华大学 | Hydraulic retarder braking moment prediction method and device based on double pressure sensors |
| CN116620247B (en) * | 2023-07-19 | 2023-09-26 | 清华大学 | Hydraulic retarder braking moment prediction method and device based on double pressure sensors |
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