CN101469698A - Water pump durability test-bed - Google Patents
Water pump durability test-bed Download PDFInfo
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- CN101469698A CN101469698A CNA2007100946225A CN200710094622A CN101469698A CN 101469698 A CN101469698 A CN 101469698A CN A2007100946225 A CNA2007100946225 A CN A2007100946225A CN 200710094622 A CN200710094622 A CN 200710094622A CN 101469698 A CN101469698 A CN 101469698A
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- pipe
- durability test
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 134
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 30
- 238000000034 method Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 7
- 230000009183 running Effects 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The present invention discloses a water pump durability test bench, which includes a programmable controller, a frequency transformator, a variable-frequency motor, a water tank, a first waterpipe, a second waterpipe, a workstation and a chucking appliance, wherein the chucking appliance fixes the water pump onto the workstation; the first waterpipe connects with a pump intake and the water tank outlet respectively; one end of the second waterpipe connects with outlet of the water pump and the other end inserted into the water tank; the programmable controller, the frequency transformator and the variable-frequency motor are connected in series through cables; the programmable controller sets frequency of the frequency transformator and start and stop time to control the frequency transformator outputs pressure frequency and drive the variable-frequency motor operate according to given rate of speed and drag the water pump operate. The water pump durability test bench of the invention has compact structure, low cost, high precision, automatic controllable test process, and suitable for small and medium-sized laboratories.
Description
Technical field
The present invention relates to a kind of test installation of pump, particularly a kind of water pump durability test-bed.
Background technique
Water pump is the vitals in the car engine cooling system, and its effect is the pumping cooling liquid, and cooling liquid is flowed in the engine cooling water channel fast, takes away the heat that produces in the engine operation, keeps the normal operating temperature of motor.
Break down as water pump, will make water temperature too high, and may cause engine failure.In fact, in engine failure, the fault that causes because of water temperature is too high is occupied quite high ratio, is caused by the fault of water pump just and water temperature is too high.In general, the water pump of motor has entered the fault high-incidence season when having used 100,000 kilometers left and right sides.In order to guarantee repair quality, a lot of water pumps are taked the freedom from repairs mode, can only take the maintenance mode of integral replacing after damage, have only the water pump of small part commercial vehicle motor can take to change separately the maintenance mode of parts such as bearing or water seal.If the water pump poor quality, poor durability just need often be changed or be keeped in repair, even causes engine failure, thereby increases substantially maintenance cost.
In actual use, water pump but often occurs because of poor durability, and 10,000 kilometers with interior quality problems of promptly leaking.If big batch quantity is introduced this defective water pump, will finally be that the Consumer causes tremendous loss to motor manufacturer.In order to ensure the quality requirement of engine water pump, motor manufacturer just must pick out qualified water pump supplier, removes underproof water pump supplier.For this reason, just must carry out endurance test to water pump, with guarantee water pump at 80,000 kilometers with interior water-tight.
Evaluation standard for unified water pump durability, stipulate among QC/CT288.2-2001 " automobile engine cooling water pump test method " 6.3.2, water pump is in the running of regulation operating mode, the reliability of examination water pump complement and component, that is: water pump should bear the rated load on the motor, and with its rated load rotating speed 120% the running 25h; Water pump should bear constant engine load, and with its rated load rotating speed 500h that turns round continuously.After the off-test: each matching part can not have loosening phenomenon; Bearing should be able to easily rotate stably; Damaging or revealing does not appear in water seal.
Above-mentioned standard code the decision criteria of water pump durability test, but do not provide the equipment of water pump durability test and concrete method.At present, the testing apparatus of water pump durability has two kinds:
The one, comprehensive test bench can carry out pump operation test, seal tightness test, endurance test etc., but this kind device structure complexity, cost are higher, to the environmental requirement harshness.
The 2nd, easy water pump durability testing apparatus, the environment of an engine cooling water channel of simulation drags water pump by given speed running with threephase asynchronous machine, judges phenomenons such as whether water pump can occur leaking at the appointed time.This kind Simple water pump durability measurement equipment adopts the exploitation speed of water pump and working time traditional electric manual mode control, and its shortcoming is: low, the poor anti jamming capability of automaticity, test accuracy is not high.
Summary of the invention
At above-mentioned defective, the technical problem that the present invention solves is, provides a kind of automaticity height, testing precision accurate, lower-cost water pump durability test-bed.
For solving above technical problem, the invention provides water pump durability test-bedly, comprising: programmable controller, frequency variator, variable-frequency motor, water tank, first water pipe, second water pipe, worktable, anchor clamps (figure does not show); Described anchor clamps are fixed on water pump on the described worktable; Described first water pipe links to each other with pump intake and described water outlet of water tank respectively, an end of described second water pipe links to each other with pump outlet, and the other end inserts among the described water tank; Described programmable controller, frequency variator, variable-frequency motor connect successively by cable, described programmable controller is set the frequency and the starting and stopping time of described frequency variator, control described frequency converter output voltage frequency, drive described variable-frequency motor and turn round, and drag pump operation according to given speed.
Preferably, the height of second water pipe is 1-3m.
Preferably, second water pipe is the U-shaped pipe.
Preferably, second water pipe is the V-arrangement pipe.
Preferably, second water pipe is a galvanized pipe.
Preferably, second water pipe is the plastic-aluminum pipe.
Of the present invention water pump durability test-bed, the water pump entery and delivery port is connected with water tank by water pipe, constitute water circulation channel, simulated engine cooling water passage environment realistically, by the rotating speed and the working time of control variable-frequency motor, and drag pump operation by variable-frequency motor, judge thus whether can bear during water pump is at the appointed time and do not damage to constant load.The present invention changes traditional electric manual control mode, introduces programmable controller and variable-frequency control technique.PLC control technique and variable-frequency control technique are combined,, realize the speed change of variable-frequency motor by the frequency of programming change variable-frequency motor driving voltage.Programmable controller has that volume is little, precision is high, assembling is flexible, antijamming capability is strong, reliability is high, is suitable for characteristics such as rugged environment use; And variable-frequency control technique has advantages such as speed-regulating range width, speed governing is level and smooth, adjusting speed accuracy is high, control is flexible.Both advantages are combined, accurately control of pump exploitation speed and working time, realize the automatic control of water pump durability process of the test, thereby simplify procedures, reduce operating cost, avoid the influence of human error test result.
Of the present invention water pump durability test-bed, compact structure, with low cost, precision is higher, test process can be controlled automatically.
Description of drawings
Fig. 1 is the water pump durability test-bed structural representation of the present invention;
Fig. 2 is the water pump durability test-bed control flow chart of the present invention.
Embodiment
The present invention shown in Figure 1 is water pump durability test-bed, comprise: programmable controller 1 (ProgrammableLogical Controller, PLC), frequency variator 2, variable-frequency motor 3, water tank 4, first water pipe 5, second water pipe 6, worktable (figure does not show), anchor clamps (figure does not show).Described anchor clamps are fixed on water pump 20 on the described worktable; First water pipe 5 links to each other with water pump 20 water intakes and described water outlet of water tank respectively, and an end of second water pipe 6 links to each other with pump outlet, and the other end inserts among the described water tank 4; Programmable controller 1, frequency variator 2, variable-frequency motor 3 connect successively by cable 7, and this variable-frequency motor 3 can drag water pump 20 runnings by belt 8.
As shown in Figure 1, of the present invention water pump durability test-bed, the entery and delivery port of water pump 20 is connected the formation water circulation channel with water tank 4 by first water pipe 5, second water pipe 6.In process of the test, water pump 20 bears the hydraulic pressure of two aspects: the one, and the hydraulic pressure in the water tank 4; Two is the hydraulic pressure of second water pipe 6 water column that forms.By adjusting the degree of depth of water in water-column and the water tank 4, but the rated load of simulated engine just, thus the experimental enviroment of simulated engine cooling water passage realistically.
Preferably, the height of second water pipe 6 is 1-3m.Second water pipe 6 keeps the above height of 1m, and water column wherein forms bigger hydraulic pressure, the load of simulated engine better; But second water pipe 6 increases to the above height of 3m, may cause the water pump 20 can't pump water.
In the above-mentioned mode of execution, second water pipe, 6 shapes can have multiple tubular.Preferably, adopt U-shaped pipe or V-arrangement pipe, guarantee that the water that water pump 20 pumps into flows to water tank 4 through second water pipe 6.In addition, U-shaped pipe or V-arrangement pipe are convenient to processing, can obtain from market easily.
In the above-mentioned mode of execution, second water pipe 6 can select for use multiple material to make.Preferably, adopt galvanized pipe, be characterized in that great variety of goods, pipe fitting are supporting many; Or adopt the plastic-aluminum pipe, but be characterized in that arbitrary smooth is curved in the wrong.
In the above-mentioned test, water pump 20 is dragged by belt 8 by variable-frequency motor 3, and promptly the rotating speed of water pump 20 is by the rotating speed decision of variable-frequency motor 3.And, have corresponding relation between rotating speed of motor and the driving voltage frequency according to Principle of Electric Engine, and set the driving voltage frequency of variable-frequency motor 3, be equal to the rotating speed that variable-frequency motor 3 is set.Thus, the present invention is provided with the frequency and the starting and stopping time of frequency variator 2 by programmable controller 1, also just sets the rotating speed and the running time of water pump 20.
As shown in Figure 1, programmable controller 1, frequency variator 2 place control rack 9, and this control rack 9 is provided with control panel 10.By operation control panel 9, can set the relevant test parameters such as frequency, working time of frequency variator 2.
As shown in Figure 2, programmable controller 1 is controlled frequency variator 2 according to following steps:
S1) beginning;
S2) PLC and frequency variator are set up the correspondence initialization;
S3) setpoint frequency;
S4) set working time;
S5) counter adds 1;
S6) judge whether to reach and set working time;
If enter the S7 step;
If not, return the S5 step;
S7) finish test.
In the above-mentioned control flow, programmable controller 1 is by the frequency and the starting and stopping time of test standard data setting frequency variator 2, and final decision the rotating speed and the working time of water pump 20.By control frequency variator 2 output voltage frequency, drive variable-frequency motor 3 and turn round, and drag water pump 20 runnings according to given speed.In the process of the test, water pump 20 planted agent at the appointed time runs without interruption.After the off-test, as phenomenons such as leaking do not appear in water pump 20, it is qualified to be judged to be this product; Otherwise, be judged to be defective.
In the present invention, introduce PLC control technique and variable-frequency control technique and combined: PLC and had that volume is little, precision is high, assembling is flexible, antijamming capability is strong, reliability is high, be suitable for characteristics such as rugged environment use; And variable-frequency control technique has advantages such as speed-regulating range width, speed governing is level and smooth, adjusting speed accuracy is high, control is flexible.Both advantages are combined, and the frequency by programming change variable-frequency motor 3 driving voltages accurately the exploitation speed of control of pump 20 and working time, realizes the automatic control of water pump durability process of the test, and has improved test accuracy.In addition, in process of the test, need not human intervention, reduce the error that personal factor causes.
Water pump durability test-bed also have compact structure, characteristics with low cost of the present invention are particularly suitable for medium and small test room and use.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1, a kind of water pump durability test-bed, it is characterized in that, comprising: programmable controller, frequency variator, variable-frequency motor, water tank, first water pipe, second water pipe, worktable, anchor clamps; Described anchor clamps are fixed on water pump on the described worktable; Described first water pipe links to each other with pump intake and described water outlet of water tank respectively, an end of described second water pipe links to each other with pump outlet, and the other end inserts among the described water tank; Described programmable controller, frequency variator, variable-frequency motor connect successively by cable, described programmable controller is set the frequency and the starting and stopping time of described frequency variator, control described frequency converter output voltage frequency, drive described variable-frequency motor and turn round, and drag pump operation according to given speed.
2, according to claim 1 water pump durability test-bed, it is characterized in that: the height of described second water pipe is 1-3m.
3, according to claim 1 water pump durability test-bed, it is characterized in that: described second water pipe is the U-shaped pipe.
4, according to claim 1 water pump durability test-bed, it is characterized in that: described second water pipe is the V-arrangement pipe.
5, each is described water pump durability test-bed according to claim 1-4, and it is characterized in that: described second water pipe is a galvanized pipe.
6, each is described water pump durability test-bed according to claim 1-4, and it is characterized in that: described second water pipe is the plastic-aluminum pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100946225A CN101469698B (en) | 2007-12-25 | 2007-12-25 | Water pump durability test-bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100946225A CN101469698B (en) | 2007-12-25 | 2007-12-25 | Water pump durability test-bed |
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| Publication Number | Publication Date |
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| CN101469698A true CN101469698A (en) | 2009-07-01 |
| CN101469698B CN101469698B (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007100946225A Expired - Fee Related CN101469698B (en) | 2007-12-25 | 2007-12-25 | Water pump durability test-bed |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518580A (en) * | 2011-11-23 | 2012-06-27 | 奇瑞汽车股份有限公司 | Endurance test stand and endurance test method for vacuum pump |
| CN105094104A (en) * | 2014-04-28 | 2015-11-25 | 比亚迪股份有限公司 | Vehicle water pump controller detection device and detection method |
| CN105864021A (en) * | 2016-05-16 | 2016-08-17 | 台州市握奇自动化设备有限公司 | Water pump test board |
| CN106286368A (en) * | 2016-10-13 | 2017-01-04 | 上海市城市排水有限公司机修安装分公司 | A kind of municipal drainage axial-flow pump maintenance examination truck control device |
| CN110886705A (en) * | 2018-09-11 | 2020-03-17 | 宁波方太厨具有限公司 | Method for testing water pumping performance of water pump of steam box |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2704824Y (en) * | 2003-12-18 | 2005-06-15 | 河海大学 | Multifunctional hydraulic mechanical test beds |
| CN2704836Y (en) * | 2004-02-13 | 2005-06-15 | 广西工学院 | Cooled water pump performance testing system of vehicle engine |
| CN100456011C (en) * | 2006-01-25 | 2009-01-28 | 河北农业大学 | Multifunctional integrated experimental bench for hydraulic machinery |
-
2007
- 2007-12-25 CN CN2007100946225A patent/CN101469698B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518580A (en) * | 2011-11-23 | 2012-06-27 | 奇瑞汽车股份有限公司 | Endurance test stand and endurance test method for vacuum pump |
| CN102518580B (en) * | 2011-11-23 | 2014-03-12 | 奇瑞汽车股份有限公司 | Endurance test stand and endurance test method for vacuum pump |
| CN105094104A (en) * | 2014-04-28 | 2015-11-25 | 比亚迪股份有限公司 | Vehicle water pump controller detection device and detection method |
| CN105094104B (en) * | 2014-04-28 | 2018-12-21 | 比亚迪股份有限公司 | The detection device and detection method of vehicle water pump controller |
| CN105864021A (en) * | 2016-05-16 | 2016-08-17 | 台州市握奇自动化设备有限公司 | Water pump test board |
| CN105864021B (en) * | 2016-05-16 | 2017-12-01 | 台州市握奇自动化设备有限公司 | Parallel water pump platform |
| CN106286368A (en) * | 2016-10-13 | 2017-01-04 | 上海市城市排水有限公司机修安装分公司 | A kind of municipal drainage axial-flow pump maintenance examination truck control device |
| CN106286368B (en) * | 2016-10-13 | 2018-01-23 | 上海市城市排水有限公司机修安装分公司 | A kind of municipal drainage axial-flow pump conserves test run control device |
| CN110886705A (en) * | 2018-09-11 | 2020-03-17 | 宁波方太厨具有限公司 | Method for testing water pumping performance of water pump of steam box |
| CN110886705B (en) * | 2018-09-11 | 2021-04-16 | 宁波方太厨具有限公司 | Method for testing water pumping performance of water pump of steam box |
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| Publication number | Publication date |
|---|---|
| CN101469698B (en) | 2011-09-21 |
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Owner name: SHANGHAI MAPLE AUTOMOBILE CO., LTD. Free format text: FORMER OWNER: SHANGHAI MAPLE ENGINE CO., LTD. Effective date: 20120111 |
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Effective date of registration: 20120111 Address after: 201501 Shanghai city Jinshan District Fengjing Industrial Park Wanfeng Road No. 2888 Patentee after: SHANGHAI MAPLE AUTOMOBILE Co.,Ltd. Address before: 201501 Jinshan District Fengjing town Shanghai Wanfeng Road No. 2889 Patentee before: SHANGHAI HUAPU ENGINE Co.,Ltd. |
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Granted publication date: 20110921 |