CN102518580B - Endurance test stand and endurance test method for vacuum pump - Google Patents
Endurance test stand and endurance test method for vacuum pump Download PDFInfo
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- CN102518580B CN102518580B CN201110374821.8A CN201110374821A CN102518580B CN 102518580 B CN102518580 B CN 102518580B CN 201110374821 A CN201110374821 A CN 201110374821A CN 102518580 B CN102518580 B CN 102518580B
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- 238000010998 test method Methods 0.000 title claims abstract description 15
- 238000002407 reforming Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000002045 lasting effect Effects 0.000 claims description 4
- 238000007600 charging Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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Abstract
The invention aims at providing an endurance test stand and an endurance test method for a vacuum pump for performing endurance test to the vacuum pump. The endurance test stand for the vacuum pump comprises a controller, a vacuum tank, a vacuum pump to be tested, a pressure-relief solenoid valve and a stand power supply for providing a power supply for the controller, the vacuum pump to be tested and the pressure-relief solenoid valve, wherein the vacuum tank is provided with a pressure sensor, the vacuum tank, the vacuum pump to be tested and the pressure-relief solenoid valve are communicated by pipelines, and the controller is respectively connected with the pressure sensor, the vacuum pump to be tested and the pressure-relief solenoid valve and controls the operations of the vacuum pump to be tested and the pressure-relief solenoid valve. The endurance test stand and the endurance test method for the vacuum pump are designed for the endurance test of the vacuum pump working in an intermittent state frequently, and the control is safe and convenient, thereby having good practical applicability.
Description
Technical field
The invention belongs to electric vehicle field, specially refer to a kind of endurance test stand and endurance test method of vacuum pump.
Background technique
The braking system of Modern Car adopts vacuum servo mode more, and conventional gasoline car braking system degree of vacuum is provided by engine intake manifold, after engine start, due to the getter action of motor, produces negative pressure in intake manifold, is enough to drive vacuum booster.But electric vehicle does not have explosive motor, therefore also just cannot utilize intake manifold to provide braking system needed degree of vacuum, so must introducing extra device, electrocar guarantees the degree of vacuum in vacuum booster, i.e. vacuum pump.The reliability of vacuum pump is directly connected to Security and the driving comfortability of car load, therefore must carry out endurance test to vacuum pump, to verify its reliability.
Summary of the invention
The object of the invention is to propose a kind of endurance test stand and endurance test method of vacuum pump, for vacuum pump is carried out to endurance test.
The endurance test stand of vacuum pump of the present invention comprises controller, vacuum tank, vacuum pump to be measured, pressure release electromagnetic valve and provides the stand power supply of power supply for controller, vacuum pump to be measured, pressure release electromagnetic valve; Described vacuum tank is provided with pressure transducer; Described vacuum tank, vacuum pump to be measured, pressure release electromagnetic valve communicate by pipeline; Described controller respectively with pressure transducer, vacuum pump to be measured, pressure release electromagnetic valve is connected and control the work of vacuum pump to be measured, pressure release electromagnetic valve.
The vacuum pump endurance test method of applying above-mentioned endurance test stand, concrete steps are as follows:
A: controller starts vacuum pump to be measured utilizes the pressure in pressure sensor monitoring vacuum tank simultaneously, and the pressure drop in vacuum tank is during to lower limit threshold values, and controller is controlled vacuum pump to be measured and quit work;
B: after predetermined interval, controller is controlled pressure release electromagnetic valve and is opened, and utilizes the pressure in pressure sensor monitoring vacuum tank simultaneously, when the pressure rise in vacuum tank arrives upper limit threshold values, controller is closed pressure release electromagnetic valve, and again starts vacuum pump to be measured;
C: repeat A, B step, until endurance test finishes.
Further, in described A step, after vacuum pump continuous operation predetermined lasting time to be measured, if the pressure in vacuum tank does not drop to lower limit threshold values, controller judges that vacuum pump to be measured lost efficacy, and whole pilot system is quit work.Can prevent like this after vacuum pump long-term work to be measured, decrease in efficiency, declines vacuum tank internal pressure if infinitely lengthened working hours, and will cause vacuum pump to be measured overheated and damage, and even has the possibility of catching fire.
Described predetermined interval is 3～5 seconds, and described predetermined lasting time is 10～15 seconds.
Further, described stand power supply comprises power of alterating and direct current reforming unit and the battery pack being connected with the output terminal of power of alterating and direct current reforming unit, Ac can be converted into direct current is batteries charging, then utilize the equipment that battery pack is test-bed that power supply is provided, to avoid causing test to interrupt because of alternating-current power supply power-off.
Further, described battery pack consists of the first battery pack and the second battery pack, and the operating voltage of described the first battery pack is greater than the operating voltage of the second battery pack; The output terminal of described power of alterating and direct current reforming unit is connected with input end and first battery pack of a DC-DC transformer respectively; The output terminal of described DC-DC transformer is connected with the second battery pack and controller, vacuum pump to be measured, pressure release electromagnetic valve respectively.Like this, first stand power supply converts 220V Ac to the direct current of the operating voltage of the first battery pack, it is the first batteries charging, by DC-DC transformer, be converted to again the operating voltage of the second battery pack, it is the second batteries charging, for controller, vacuum pump to be measured, pressure release electromagnetic valve provide power supply, guarantee that stand power supply is uninterrupted simultaneously.When ac power supply is during because of accidental interruption, the first battery pack can provide standby power supply for DC-DC transformer, even if DC-DC transformer also breaks down, the second battery pack also can provide the power supply supply of a period of time for test-bed as standby power supply, the buffer time providing by two-stage standby power supply, enough power system failure is got rid of, even if do not get rid of, also can in time laboratory data be saved safely, be unlikely to obliterated data.
Further, described stand power supply is connected with controller, vacuum pump to be measured, pressure release electromagnetic valve by Block Terminal, in described Block Terminal, is provided with insurance.When circuit overload, insurance can fusing, and this protection mechanism is mainly to prevent on stand that vacuum pump to be measured causes circuit overload because of rotor stall, and then excessive heating, damage equipment.
The endurance test stand of vacuum pump of the present invention and endurance test method are that the vacuum pump endurance test of frequent intermittent sex work designs, and control safety, convenient, have good practicability.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the endurance test stand of vacuum pump of the present invention.
Fig. 2 is the schematic diagram of stand power supply in the endurance test stand of vacuum pump of the present invention.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail as the effect of the mutual alignment between the shape of each related member, structure, each several part and annexation, each several part and working principle etc.
Embodiment 1:
(in figure, heavy line is power line as shown in Figure 1, fine line is signaling line), the endurance test stand of the vacuum pump of the present embodiment comprises controller 1, vacuum tank 2, vacuum pump to be measured 3, pressure release electromagnetic valve 4 and provides the stand power supply 5 of power supply for controller 1, vacuum pump to be measured 3, pressure release electromagnetic valve 4; Stand power supply 5 is connected with controller 1, vacuum pump to be measured 3, pressure release electromagnetic valve 4 by Block Terminal 7, in Block Terminal 7, is provided with insurance; Vacuum tank 2 is provided with pressure transducer 6; Vacuum tank 2, vacuum pump to be measured 3, pressure release electromagnetic valve 4 communicate by pipeline; Described controller 1 is connected with pressure transducer 6, vacuum pump to be measured 3, pressure release electromagnetic valve 4 respectively and controls the work of vacuum pump 3 to be measured, pressure release electromagnetic valve 4.Controller 1 can adopt single-chip microcomputer or upper-position unit, and is built-in with storage unit or is connected with storage unit.
As shown in Figure 2, stand power supply 5 comprises power of alterating and direct current reforming unit 51, battery pack 52 and DC-DC transformer 53, battery pack 52 consists of the first battery pack 521 and the second battery pack 522, and wherein the operating voltage of the first battery pack 521 is 60V, and the operating voltage of the second battery pack 522 is 12V; The output terminal of power of alterating and direct current reforming unit 51 is connected with input end and first battery pack 521 of DC-DC transformer 53 respectively; The output terminal of DC-DC transformer 53 is connected with the second battery pack 522 and controller 1, vacuum pump to be measured 3, pressure release electromagnetic valve 4 respectively.Like this, first stand power supply utilizes power of alterating and direct current reforming unit 51 220V Ac to be converted to the direct current of 60V, be the first battery pack 521 chargings, by DC-DC transformer 53, be converted to again the direct current of 12V, be the second battery pack 522 chargings, for controller 1, vacuum pump to be measured 3, pressure release electromagnetic valve 4 provide power supply, guarantee that stand power supply is uninterrupted simultaneously.When ac power supply is during because of accidental interruption, the first battery pack 521 can provide standby power supply for DC-DC transformer 53, even if DC-DC transformer 53 also breaks down, the second battery pack 522 also can provide the power supply supply of a period of time for test-bed as standby power supply, the buffer time providing by two-stage standby power supply, enough power system failure is got rid of, even if do not get rid of, also can in time laboratory data be saved safely, be unlikely to obliterated data.
The vacuum pump endurance test method of applying above-mentioned endurance test stand, concrete steps are as follows:
A: controller 1 starts vacuum pump 3 to be measured utilizes the pressure in pressure transducer 6 monitoring vacuum tanks 2 simultaneously, and the pressure drop in vacuum tank 2 is during to lower limit threshold values, and controller 1 control vacuum pump 3 to be measured quits work;
B: (can guarantee like this vacuum pump 3 heat radiations to be measured after the predetermined interval in 5 seconds, otherwise continuous operation meeting causes vacuum pump 3 to be measured to damage because of overheated), controller 1 is controlled pressure release electromagnetic valve 4 and is opened, utilize the pressure in pressure transducer 6 monitoring vacuum tanks 2 simultaneously, when the pressure rise in vacuum tank 2 arrives upper limit threshold values, controller 1 is closed pressure release electromagnetic valve 4, and again starts vacuum pump 3 to be measured;
C: repeat A, B step, until endurance test finishes.
In above-mentioned A step, when vacuum pump 3 continuous operations to be measured are after 15 seconds, if the pressure in vacuum tank 2 does not drop to lower limit threshold values, controller 1 judgement vacuum pump 3 to be measured had lost efficacy, and whole pilot system is quit work.Can prevent like this after vacuum pump 3 long-term works to be measured, decrease in efficiency, declines vacuum tank 2 internal pressures if infinitely lengthened working hours, and will cause vacuum pump 3 to be measured overheated and damage, and even has the possibility of catching fire.
Claims (5)
1. a vacuum pump endurance test method, the endurance test stand of the vacuum pump that it adopts comprises controller, vacuum tank, vacuum pump to be measured, pressure release electromagnetic valve and provides the stand power supply of power supply for controller, vacuum pump to be measured, pressure release electromagnetic valve; Described vacuum tank is provided with pressure transducer; Described vacuum tank, vacuum pump to be measured, pressure release electromagnetic valve communicate by pipeline; Described controller respectively with pressure transducer, vacuum pump to be measured, pressure release electromagnetic valve is connected and control the work of vacuum pump to be measured, pressure release electromagnetic valve; It is characterized in that this vacuum pump endurance test method comprises the steps:
A: controller starts vacuum pump to be measured utilizes the pressure in pressure sensor monitoring vacuum tank simultaneously, and the pressure drop in vacuum tank is during to lower limit threshold values, and controller is controlled vacuum pump to be measured and quit work;
B: after predetermined interval, controller is controlled pressure release electromagnetic valve and is opened, and utilizes the pressure in pressure sensor monitoring vacuum tank simultaneously, when the pressure rise in vacuum tank arrives upper limit threshold values, controller is closed pressure release electromagnetic valve, and again starts vacuum pump to be measured;
C: repeat A, B step, until endurance test finishes;
In described A step, after vacuum pump continuous operation predetermined lasting time to be measured, if the pressure in vacuum tank does not drop to lower limit threshold values, controller judges that vacuum pump to be measured lost efficacy, and whole pilot system is quit work.
2. vacuum pump endurance test method according to claim 1, is characterized in that described predetermined interval is 3～5 seconds, and described predetermined lasting time is 10～15 seconds.
3. vacuum pump endurance test method according to claim 1 and 2, is characterized in that described stand power supply comprises power of alterating and direct current reforming unit and the battery pack being connected with the output terminal of power of alterating and direct current reforming unit.
4. vacuum pump endurance test method according to claim 3, is characterized in that described battery pack consists of the first battery pack and the second battery pack, and the operating voltage of described the first battery pack is greater than the operating voltage of the second battery pack; The output terminal of described power of alterating and direct current reforming unit is connected with input end and first battery pack of a DC-DC transformer respectively; The output terminal of described DC-DC transformer is connected with the second battery pack and controller, vacuum pump to be measured, pressure release electromagnetic valve respectively.
5. vacuum pump endurance test method according to claim 1 and 2, is characterized in that described stand power supply is connected with controller, vacuum pump to be measured, pressure release electromagnetic valve by Block Terminal, is provided with insurance in described Block Terminal.
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| CN201110374821.8A CN102518580B (en) | 2011-11-23 | 2011-11-23 | Endurance test stand and endurance test method for vacuum pump |
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| CN201110374821.8A CN102518580B (en) | 2011-11-23 | 2011-11-23 | Endurance test stand and endurance test method for vacuum pump |
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| CN102518580B true CN102518580B (en) | 2014-03-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443135A (en) * | 2018-05-19 | 2018-08-24 | 芜湖筱笙机电科技有限公司 | A kind of vacuum pump integrated test system for performance and method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102777371B (en) * | 2012-07-19 | 2015-11-25 | 奇瑞汽车股份有限公司 | A kind of endurance test mechanism of vehicle vacuum pump and durability test method thereof |
| CN106230104A (en) * | 2016-08-22 | 2016-12-14 | 长沙威克电力技术科技有限公司 | A kind of electrician station of band stand-by power supply |
| CN110206720B (en) * | 2019-05-09 | 2020-07-14 | 中国第一汽车股份有限公司 | Electric vacuum pump endurance test device and method for electric automobile |
| CN113295939B (en) * | 2021-03-29 | 2023-01-31 | 一汽奔腾轿车有限公司 | Vacuum pump electromagnetic compatibility test system and control method thereof |
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| CN201925151U (en) * | 2011-03-08 | 2011-08-10 | 黑龙江省农业机械工程科学研究院 | Vacuum pump performance testing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074468A (en) * | 2001-08-31 | 2003-03-12 | Toshiba Corp | Evacuation system and monitoring and control method for it |
| JP5104334B2 (en) * | 2008-01-22 | 2012-12-19 | 株式会社島津製作所 | Vacuum pump |
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Patent Citations (4)
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| JP2008057466A (en) * | 2006-08-31 | 2008-03-13 | Hitachi Ltd | Rotary compressor |
| CN101469698A (en) * | 2007-12-25 | 2009-07-01 | 上海华普发动机有限公司 | Water pump durability test-bed |
| CN201925151U (en) * | 2011-03-08 | 2011-08-10 | 黑龙江省农业机械工程科学研究院 | Vacuum pump performance testing device |
| CN102135091A (en) * | 2011-04-11 | 2011-07-27 | 宁波拓普制动系统有限公司 | Device and method for testing durability of electronic vacuum pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443135A (en) * | 2018-05-19 | 2018-08-24 | 芜湖筱笙机电科技有限公司 | A kind of vacuum pump integrated test system for performance and method |
| CN108443135B (en) * | 2018-05-19 | 2019-09-24 | 江苏新克医疗器械有限公司 | A kind of vacuum pump integrated test system for performance and method |
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| CN102518580A (en) | 2012-06-27 |
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Owner name: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SAIC CHERY AUTOMOBILE CO., LTD. Effective date: 20150728 |
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Effective date of registration: 20150728 Address after: 241000 Yijiang, Anhui Province, Jin Hua Road, No. 226, South Road, No. Patentee after: New-energy automobile Technology Co., Ltd. of Cherry Address before: 241009 Wuhu economic and Technological Development Zone, Anhui, No. 8 Changchun Road Patentee before: Saic Chery Automobile Co., Ltd. |
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Address after: 241000 No. 226 Jin Hua Nan Road, Yijiang hi tech Industrial Development Zone, Anhui, Wuhu Patentee after: Chery New Energy Automobile Co.,Ltd. Address before: 241000 No. 226 Hua Jin South Road, Yijiang District, Anhui, Wuhu Patentee before: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |