CN109707614A - A kind of electric vacuum pump service life durability test equipment and its application method - Google Patents
A kind of electric vacuum pump service life durability test equipment and its application method Download PDFInfo
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- CN109707614A CN109707614A CN201910130171.9A CN201910130171A CN109707614A CN 109707614 A CN109707614 A CN 109707614A CN 201910130171 A CN201910130171 A CN 201910130171A CN 109707614 A CN109707614 A CN 109707614A
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Abstract
The invention discloses a kind of electric vacuum pump service life durability test equipments, including sweat box and sample mounting stage frame, fixed placement has test sample on the sample mounting stage frame, the air inlet of the test sample connects pumping tank by vacuum hose, the gas outlet of the test sample connects dust collecting box by exhaust pipe, is fixedly installed with pressure sensor above the pumping tank；The test sample is electrically connected power supply by PLC control unit, the pressure value inside the pressure sensor induction pumping tank, and pressure value signal is transferred to PLC control unit.Overcome the deficiencies in the prior art of the present invention, present invention is primarily aimed at the requirements that can carry out life test to vacuum pump by reaching in the lab using test simulation means, the equipment can simulate the practical situations of real vehicle assembly intermediate pump, to can complete the life test for being equivalent to vehicle service life in the lab.
Description
Technical field
The present invention relates to electric vacuum pump the field of test technology, and in particular to a kind of electric vacuum pump service life durable test is set
Standby and its application method.
Background technique
Currently, increasingly cause the common concern in the whole world the problems such as environmental pollution, energy crisis.New-energy automobile is using non-
Conventional vehicle fuel reduces the consumption of the energy as a source of power, and the utilization of energy is improved using Energy Recovery Technology
Rate.Therefore, new-energy automobile becomes the direction of future automobile development, has vast potential for future development.And for electric vacuum pump
The test of performance is also come into being.
And electric vacuum pump life test on the market at present, it only carries out under room temperature state, does not carry out high temperature and low temperature shape
State, so that the life test verifying degree to product is inadequate, even if product carries out so-called life-cycle verifying under room temperature state,
Integeral vehicle life requirement may not be can satisfy, vehicle use is there are high/low temperature repeat state after all, and such situation is for product
Test will be harsher.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of electric vacuum pump service life durability test equipment and its uses
Method overcomes the deficiencies in the prior art, and main purpose is can be by being reached using test simulation means in the lab
To the requirement for carrying out life test to vacuum pump, which can simulate the practical situations of real vehicle assembly intermediate pump, from
And the life test for being equivalent to vehicle service life can be completed in the lab.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs:
A kind of electric vacuum pump service life durability test equipment, including sweat box and sample mounting stage frame, the sample installation
Rack is fixedly mounted in sweat box, and fixed placement has a test sample on the sample mounting stage frame, the test sample into
Port connects pumping tank by vacuum hose, and the pumping tank is fixedly mounted on the outside of sweat box, solid on the outside of the sweat box
Dingan County is equipped with dust collecting box, and the gas outlet of the test sample connects dust collecting box, the pumping tank by exhaust pipe
Top is fixedly installed with pressure sensor；The test sample is electrically connected power supply by PLC control unit, and the pressure passes
Pressure value inside sensor induction pumping tank, and pressure value signal is transferred to PLC control unit.
Preferably, check valve is fixedly installed among the vacuum hose.
Preferably, at least one test sample of the uniform fixed placement in sample mounting stage frame upper surface, and each test
Sample is controlled by individual power supply.
Preferably, the test sample surface is fixedly installed with temperature sensor, and the temperature sensor incudes survey in real time
The temperature value of test agent, and temperature value signal is transferred to PLC control unit, electrically control has alarm to the PLC control unit
Device.
Preferably, the test sample surface is provided with speed probe, and the speed probe incudes test specimens in real time
The motor speed of product, and motor speed signal is transferred to PLC control unit and is monitored in real time.
(3) beneficial effect
The embodiment of the invention provides a kind of electric vacuum pump service life durability test equipments.Have following the utility model has the advantages that logical
Excess temperature case is that test sample carries out temperature load in an experiment, low temperature, room temperature and high temperature test environment is provided for it, to test
Demonstrate,prove the work performance and stability of product at different temperatures；Each test sample passes through individual power supply and is powered,
When test, all test samples are worked at the same time, and extract the gas in pumping tank, and the pressure sensor for being mounted on pumping tank top is real
When read pressure value inside pumping tank, therefore, it is determined that whether the test sample starts or stops work, the pressure inside pumping tank
When force value reaches start-up operation pressure, for pressure value signal to PLC control unit, PLC control unit controls power supply to test sample
It powers on, so that test sample be allowed to start to work, gives pumping tank pumping at this time, when reaching closing pressure wait be evacuated pressure inside the tank value,
PLC control unit is powered off to test sample, so that test sample be allowed to stop working, is evacuated tank at this time and is started return-air, tank to be evacuated
After the completion of returning to start-up operation pressure and single working cycles dwell time that test sample is set under current reference temperature, open
The circulation that begins pumping action next time；It can be carried out simultaneously to reach all samples test, reduce test period significantly.Base
Originally it can achieve the requirement for starting simultaneously at and being completed at the same time.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described.
Fig. 1 is the structural diagram of the present invention.
Figure label explanation:
1, sweat box；2, sample mounting stage frame；3, test sample；4, vacuum hose；5, it is evacuated tank；6, dust collecting box；
7, exhaust pipe；8, pressure sensor；9, PLC control unit；10, power supply；11, check valve；12, temperature sensor；13, revolving speed passes
Sensor.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.
A kind of electric vacuum pump service life durability test equipment, including sweat box 1 and sample mounting stage frame 2, the sample peace
Dress rack 2 is fixedly mounted in sweat box 1, and fixed placement has test sample 3, the test specimens on the sample mounting stage frame 2
The air inlet of product 3 passes through the connection pumping tank 5 of vacuum hose 4, and the pumping tank 5 is fixedly mounted on 1 outside of sweat box, the temperature
Dust collecting box 6 is fixedly installed on the outside of degree case 1, the gas outlet of the test sample 3 passes through exhaust pipe 7 and connects dust collection
Case 6 is fixedly installed with pressure sensor 8 above the pumping tank 5；The test sample 3 is electrical by PLC control unit 9
Power supply 10, the pressure value inside the induction of the pressure sensor 8 pumping tank 5 are connected, and pressure value signal is transferred to PLC control
Unit 9.
Check valve 11 is fixedly installed among the vacuum hose 4.Thus when test sample stops working, due to surveying
It is at this time vacuum state inside test agent 3, ambient atmosphere can be entered inside test sample 3 by gas outlet, and 11 energy of check valve
Suck-back gas is enough avoided to be evacuated tank 5.
At least one test sample 3 of the uniform fixed placement in 2 upper surface of sample mounting stage frame, and each test sample 3
It is controlled by individual power supply 10.To make all samples test that can carry out simultaneously, reduce test period significantly, substantially
It can achieve the requirement for starting simultaneously at and being completed at the same time.
3 surface of test sample is fixedly installed with temperature sensor 12, the induction test in real time of temperature sensor 12
The temperature value of sample 3, and temperature value signal is transferred to PLC control unit 9, electrically control has alarm to the PLC control unit 9
Device.To which when there is temperature overproof, PLC control unit 9 can control alarm and alarm at once, stops the sample and continue to survey
Examination, after to be checked, can restore the sample test.
3 surface of test sample is provided with speed probe 13, and the speed probe 13 incudes test sample 3 in real time
Motor speed, and motor speed signal is transferred to PLC control unit 9 and is monitored in real time.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is described in detail, those skilled in the art should understand that: it still can be to foregoing embodiments
Documented technical solution is modified or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (5)
1. a kind of electric vacuum pump service life durability test equipment, including sweat box (1) and sample mounting stage frame (2), feature exists
In: the sample mounting stage frame (2) is fixedly mounted in sweat box (1), and fixed placement has survey on the sample mounting stage frame (2)
Test agent (3), the air inlet of the test sample (3) pass through vacuum hose (4) connection pumping tank (5), the pumping tank (5)
It is fixedly mounted on the outside of sweat box (1), is fixedly installed with dust collecting box (6), the test sample on the outside of the sweat box (1)
(3) gas outlet passes through exhaust pipe (7) connection dust collecting box (6), and pressure biography is fixedly installed with above the pumping tank (5)
Sensor (8)；The test sample (3) is electrically connected power supply (10) by PLC control unit (9), the pressure sensor (8)
The internal pressure value of induction pumping tank (5), and pressure value signal is transferred to PLC control unit (9).
2. a kind of electric vacuum pump service life durability test equipment according to claim 1, it is characterised in that: the vacuum is soft
Check valve (11) are fixedly installed among pipe (4).
3. a kind of electric vacuum pump service life durability test equipment according to claim 1, it is characterised in that: the sample peace
At least one test sample (3) of the uniform fixed placement in rack (2) upper surface is filled, and each test sample (3) is by individual electricity
Source (10) control.
4. a kind of electric vacuum pump service life durability test equipment according to claim 1, it is characterised in that: the test specimens
Product (3) surface is fixedly installed with temperature sensor (12), and the temperature sensor (12) incudes the temperature of test sample (3) in real time
Value, and temperature value signal is transferred to PLC control unit (9), electrically control has alarm to the PLC control unit (9).
5. a kind of electric vacuum pump service life durability test equipment according to claim 1, it is characterised in that: the test specimens
Product (3) surface is provided with speed probe (13), and the motor that the speed probe (13) incudes test sample (3) in real time turns
Speed, and motor speed signal is transferred to PLC control unit (9) and is monitored in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910130171.9A CN109707614A (en) | 2019-02-21 | 2019-02-21 | A kind of electric vacuum pump service life durability test equipment and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910130171.9A CN109707614A (en) | 2019-02-21 | 2019-02-21 | A kind of electric vacuum pump service life durability test equipment and its application method |
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| Publication Number | Publication Date |
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| CN109707614A true CN109707614A (en) | 2019-05-03 |
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ID=66264630
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| CN201910130171.9A Pending CN109707614A (en) | 2019-02-21 | 2019-02-21 | A kind of electric vacuum pump service life durability test equipment and its application method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365224A (en) * | 2020-04-24 | 2020-07-03 | 华域皮尔博格泵技术有限公司 | Test equipment of carbon tank cleaning pump |
| CN111677661A (en) * | 2020-06-09 | 2020-09-18 | 上海拓绅汽车电子有限公司 | Fatigue durability test system for automobile auxiliary vacuum pump |
| CN115524108A (en) * | 2022-10-14 | 2022-12-27 | 钦萘新能源科技（苏州）有限公司 | System and method for testing service life durability of electric vacuum pump |
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