CN116539239A - Liquid supply system and method for testing electric drive motor based on temperature control integrated machine - Google Patents
Liquid supply system and method for testing electric drive motor based on temperature control integrated machine Download PDFInfo
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- CN116539239A CN116539239A CN202310373242.4A CN202310373242A CN116539239A CN 116539239 A CN116539239 A CN 116539239A CN 202310373242 A CN202310373242 A CN 202310373242A CN 116539239 A CN116539239 A CN 116539239A
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- 239000007788 liquid Substances 0.000 title claims abstract description 44
- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 134
- 238000001514 detection method Methods 0.000 claims abstract description 67
- 238000007667 floating Methods 0.000 claims abstract description 8
- 238000007664 blowing Methods 0.000 claims description 37
- 238000002347 injection Methods 0.000 claims description 25
- 239000007924 injection Substances 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
- G01F23/72—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a liquid supply system and a method for testing an electric drive motor based on a temperature control integrated machine, wherein the liquid supply system comprises a tested piece and a tested piece water tank, a floating ball liquid level switch is arranged in the tested piece water tank, and a magnetic floating ball liquid level meter is arranged at the top of the tested piece water tank; the tested water tank is provided with a tested channel which is a water supply pipeline and a water return pipeline respectively, the bottom of the tested water tank is provided with a circulating water pump, and the water return pipeline is provided with an ultrasonic flowmeter, a mechanical pressure gauge, a pressure difference switch, a one-way valve, a pressure sensor and a temperature sensor which are distributed according to a water outlet line. The invention provides a liquid supply system for testing an electric drive motor based on a temperature control integrated machine and a method thereof, which realize the reduction of the labor intensity of workers and the improvement of the detection precision by automatically and continuously detecting the tightness and the water cooling of an internal channel of the electric drive motor, have the effect of being more in line with the actual use and are beneficial to the subsequent use.
Description
Technical Field
The invention relates to the technical field of tightness detection, in particular to a liquid supply system and a liquid supply method for testing an electric drive motor based on a temperature control integrated machine.
Background
Tightness, also called air tightness, leakage rate, is one of the important factors affecting the quality of the product. Along with the progress of scientific technology, the quality and performance requirements of the sealing products are improved, so that the requirements on detection means of the sealing products are more and more strict. For the electric drive motor, the quality of the air tightness can directly influence the quality of the electric drive motor assembly, so that the electric drive motor assembly has strict sealing requirements in the production process so as to ensure the air tightness. The current detection of the air tightness of the automobile system at home and abroad mainly adopts gas as a detection medium and adopts the gas pressure change as a basic principle for measurement. Therefore, the differential pressure type airtight detection technology is increasingly applied to production and detection sites as a detection method with wider applicability. However, the existing detection is usually manual detection, and the detection mode is low in efficiency and low in detection precision.
Generally, the existing detection is usually manual detection, and the detection mode is relatively backward, has certain consumption on manpower and material resources, is low in efficiency and detection accuracy, and is unfavorable for long-term production and development.
Disclosure of Invention
The invention aims to provide a liquid supply system and a liquid supply method for testing an electric drive motor based on a temperature control integrated machine, and aims to solve the problems that the existing detection is usually manual detection, the detection mode is relatively backward, certain consumption and efficiency are low on manpower and material resources, and the detection precision is low.
In order to achieve the above object, the present invention provides the following technical solutions: the liquid supply system for the electric drive motor test of the integrated machine comprises a tested piece and a tested piece water tank, wherein a floating ball liquid level switch is arranged in the tested piece water tank, and a magnetic floating ball liquid level meter is arranged at the top of the tested piece water tank;
the tested water tank is provided with a tested channel which is a water supply pipeline and a water return pipeline respectively,
the bottom of the tested piece water tank is provided with a circulating water pump, and the water return pipeline is provided with an ultrasonic flowmeter, a mechanical pressure gauge, a differential pressure switch, a one-way valve, a pressure sensor and a temperature sensor which are distributed according to a water outlet line; an air inlet pipeline is fixedly connected to the water return pipeline, a first check valve and a second check valve are arranged on the air inlet pipeline, and an air inlet electromagnetic valve and an air source processor are arranged between the first check valve and the second check valve.
The water supply pipeline is provided with a temperature sensor, a pneumatic angle seat valve and a filter differential pressure switch, the tested piece water tank is provided with a water return port, and the water return port and the water return pipeline are connected with each other through the tested piece
Preferably, the method specifically comprises the following operation steps:
s1: injecting compressed gas with certain pressure into a tested piece through a tested channel, recording pressure difference values before and after inflation, and judging whether the airtight detection is successful or not through the pressure difference values;
s2: after the air tightness detection is finished, water is injected into a tested piece through a circulating water pump, and whether water injection is successful or not is judged through a flow value;
s3: and after water injection is completed, the compressed air is injected into the channel of the tested piece again after the channel of the tested piece water tank is tested, the medium in the channel is blown out, and whether the blowing backwater is successful or not is judged by the pressure value in the channel after the blowing backwater is completed.
Preferably, in the step S1, after the airtight detection is completed, the circulating water pump is turned on, a test medium is injected into the tested channel of the tested piece, and when the ultrasonic flowmeter detects that the medium flow is lower than the preset flow during the water injection, the rotation speed of the circulating water pump is increased by frequency conversion of the frequency converter, so as to increase the flow;
when the pressure sensor is in airtight detection opening, detecting whether the pressure of the air source processor reaches a preset value, if so, opening an air inlet electromagnetic valve, closing the air inlet electromagnetic valve after the air source pressure is detected to pass, keeping the pneumatic angle seat valve closed, and enabling the system to enter an airtight pressure maintaining detection stage, and comparing the pressure difference value of the pressure sensor before and after inflation detection and pressure maintaining detection with a preset pressure difference value.
Preferably, in the step S1, the criterion for judging whether the test is successful is: if the water injection action is successfully completed within the set time and reaches the set flow value, otherwise, the task fails;
in the step S2, the criterion for judging whether to succeed is: comparing the detected air inflation and pressure maintaining with preset pressure difference values before and after the detection, if the detected air inflation and pressure maintaining are larger than the preset pressure difference values, the airtight detection action is successfully completed, otherwise, the task fails;
in the step S3, the criterion for judging whether the success is successful is: judging whether the value of the pressure sensor is smaller than a preset value, if so, successfully completing the air blowing backwater action, otherwise, failing the task.
Preferably, in the step S2, the pneumatic angle seat valve is kept open during the air blowing backwater action, and meanwhile, the air intake electromagnetic valve is kept open, and the circulating water pump is closed, so that the compressed gas passes through the tested channel connected with the tested piece, and the liquid medium left in the tested channel after the water injection is completed is blown into the tested piece water tank.
Preferably, in the step S3, when the air blowing backwater action reaches the set time, the air inlet electromagnetic valve and the pneumatic angle seat valve are closed, and whether the value of the pressure sensor is smaller than a preset value is detected, if so, the air blowing backwater action is successfully completed.
Preferably, the magnetic levitation ball liquid level meter controls the circulating water pump by detecting the liquid level of the tested piece water tank, and when the liquid level is lower than a set value, the circulating water pump is turned off.
Preferably, in the step S1, if the task is determined to have failed, the process returns to the previous step,
In the technical scheme, the invention has the following beneficial effects:
injecting compressed gas with certain pressure into a water tank of a tested piece through a tested channel, recording pressure difference values before and after inflation, and judging whether the airtight detection is successful or not through the pressure difference values; after the air tightness detection is finished, the tested piece is injected into the tested piece channel through the circulating water pump, and whether the water injection is successful or not is judged through the flow value; after water injection is completed, injecting compressed air into the channel of the tested piece after the channel of the tested piece water tank is tested, blowing out a medium in the channel, and judging whether blowing backwater is successful or not according to the pressure value in the channel after blowing backwater is completed; the pneumatic angle seat valve is kept open during the air blowing backwater action, and meanwhile, the air inlet electromagnetic valve is kept open, and the circulating water pump is closed, so that compressed air passes through a tested channel connected with a tested piece, and liquid medium left in the tested channel after water injection is completed is blown into a tested piece water tank; when the air blowing backwater action reaches the set time, the air inlet electromagnetic valve and the pneumatic angle seat valve are closed, whether the numerical value of the pressure sensor is smaller than a preset value or not is detected, if yes, the air blowing backwater action is successfully completed, through the operation steps, the tightness detection of the internal channel of the electric drive motor can be automatically and continuously carried out, the labor intensity of workers is reduced, the detection efficiency and the detection precision are improved, the practical use effect is more met, and the follow-up use is facilitated.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all of the features of the disclosed technology.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of a test system according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a method according to an embodiment of the present invention.
Reference numerals illustrate:
1. a water outlet temperature sensor; 2. a pressure sensor; 3. a differential pressure switch; 4. a pressure gauge;
5. an ultrasonic flowmeter; 6. a circulating water pump; 7. an air inlet electromagnetic valve; 8. an air source processor; 9. a tested piece; 10. a backwater temperature sensor; 11. pneumatic angle seat valve; 12. a filter differential pressure switch; 13. a magnetic float ball level gauge; 14. a float ball liquid level switch; 15. a water tank of a tested piece; 16. an air inlet one-way valve I; 17. an air outlet one-way valve; 18. and an air inlet one-way valve II.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
1-2, a liquid supply system and a method for testing an electric drive motor based on a temperature control integrated machine comprise a tested piece 9 and a tested piece water tank 15, wherein a floating ball liquid level switch 14 is arranged in the tested piece water tank 15, and a magnetic floating ball liquid level meter 13 is arranged at the top of the tested piece water tank 15;
the tested water tank 15 is provided with a tested channel which is a water supply pipeline and a water return pipeline respectively,
the bottom of the tested piece water tank 15 is provided with a circulating water pump 6, and a water return pipeline is provided with an ultrasonic flowmeter 5, a mechanical pressure gauge 4, a differential pressure switch 3, a one-way valve 17, a pressure sensor 2 and a temperature sensor 1 which are distributed according to a water outlet line; an air inlet pipeline is fixedly connected to the water return pipeline, a first check valve 16 and a second check valve 18 are arranged on the air inlet pipeline, and an air inlet electromagnetic valve 7 and an air source processor 8 are arranged between the first check valve 16 and the second check valve 18.
The water supply pipeline is provided with a temperature sensor 10, a pneumatic angle seat valve 11 and a filter differential pressure switch 12, and the tested piece water tank 15 is provided with a water return port which is connected with the water return pipeline through a tested piece.
The method specifically comprises the following operation steps:
s1: injecting compressed gas with certain pressure into the tested piece 9 through the tested channel, recording the pressure difference value before and after inflation, and judging whether the airtight detection is successful or not through the pressure difference value;
s2: after the air tightness detection is finished, water is injected into the tested piece 9 through the circulating water pump 6, and whether the water injection is successful or not is judged through a flow value;
s3: after water injection is completed, compressed air is injected into the channel of the tested piece again after the channel of the tested piece water tank 15 is tested, the medium in the channel is blown out, and whether air blowing backwater is successful or not is judged through the pressure value in the channel after air blowing backwater is completed.
In the step S1, after the airtight detection is completed, the circulating water pump 6 is turned on, a test medium is injected into the tested channel of the tested piece 9, and when the ultrasonic flowmeter 5 detects that the medium flow is lower than the preset flow during the water injection, the frequency converter is used for frequency conversion to increase the rotation speed of the circulating water pump 6 and increase the flow;
when the pressure sensor 2 is in airtight detection opening, detecting whether the pressure of the air source processor 8 reaches a preset value, if so, opening the air inlet electromagnetic valve 7, closing the air inlet electromagnetic valve 7 after the air source air pressure detection passes, keeping the pneumatic angle seat valve 11 closed, and entering an airtight pressure maintaining detection stage by the system, and comparing the pressure difference value of the pressure sensor 2 before and after the air charging detection and the pressure maintaining detection with the preset pressure difference value.
In the step S1, the criterion for judging whether the success is successful is: if the water injection action is successfully completed within the set time and reaches the set flow value, otherwise, the task fails;
in the step S2, the criterion for judging whether to succeed is: comparing the detected air inflation and pressure maintaining with preset pressure difference values before and after the detection, if the detected air inflation and pressure maintaining are larger than the preset pressure difference values, the airtight detection action is successfully completed, otherwise, the task fails;
in the step S3, the criterion for judging whether the success is successful is: judging whether the value of the pressure sensor 2 is smaller than a preset value, if so, successfully completing the air blowing backwater action, otherwise, failing the task.
In step S2, the pneumatic angle seat valve 11 is kept open during the air blowing backwater action, and meanwhile, the air inlet solenoid valve 7 is kept open, and the circulating water pump 6 is closed, so that the compressed air passes through the tested channel connected with the tested piece 9, and the liquid medium left in the tested channel after water injection is completed is blown into the tested piece water tank 15.
In the step S3, when the air blowing backwater action reaches the set time, the air inlet electromagnetic valve 7 and the pneumatic angle seat valve 11 are closed, and whether the value of the pressure sensor 2 is smaller than a preset value is detected, if so, the air blowing backwater action is successfully completed.
The magnetic ball liquid level meter 14 controls the circulating water pump 6 by detecting the liquid level of the tested piece water tank 15, and when the liquid level is lower than a set value, the circulating water pump 6 is turned off.
The specific practical application is as follows:
the tightness detection of the tested piece water tank 15 is manually completed by production line workers, and is mainly divided into three actions of gas tightness detection, water injection test and air blowing backwater test, and the pressure difference before and after inflation, the water injection flow and the air blowing backwater pressure cannot be timely and accurately recorded due to manual operation, so that the problem that part of gearbox products are erroneously detected and missed is solved, and the system is adopted for reducing the manual labor intensity and improving the detection precision.
When the liquid level in the test piece water tank 15 exceeds the early warning liquid level before the start, the air inlet electromagnetic valve 7 is closed, the pneumatic angle seat valve is opened, and the circulating water pump 6 is closed without action.
After the vehicle starts, firstly, the air tightness detection action is carried out, the air inlet electromagnetic valve 7 is opened, the pneumatic angle seat valve 9 is closed, compressed air is injected into a test channel of a tested piece 9, whether the pressure of an air source processor reaches the standard or not is detected, if the pressure does not reach the standard, the detection fails, error information is transmitted to the general control SCADA system, if the pressure does not reach the standard, the air inlet electromagnetic valve is closed, the current pressure sensor 2 value is recorded, then the vehicle enters a sealing detection stage, the current pressure sensor 2 value is recorded after the set time is reached, the absolute value is subtracted from the pressure values recorded before and after the absolute value, if the pressure values are smaller than the set value, the detection fails, the error information is transmitted to the general control SCADA system, if the pressure is larger than the set value, the air tightness detection is successful, and the pneumatic angle seat valve 9 is opened.
And then, the circulating water pump 6 is started, the rotating speed of the circulating water pump is regulated through a PID program function in the PLC, so that the flow reaches a preset flow value within a set time range, if the flow does not reach the standard, the detection fails, error information is transmitted to the general control SCADA system, and if the flow reaches the standard, the water injection action is successfully completed.
Then, after the water injection test of the channel of the tested piece water tank 15 is finished, a third step of air blowing backwater test stage is entered, the circulating water pump 6 is closed, the air inlet electromagnetic valve 7 is opened, the pneumatic angle seat valve 9 is opened, compressed air is introduced into the tested channel of the tested piece 9, the remained test medium is blown back into the tested piece water tank 15, after the set time reaches the end of the air blowing action, the air inlet electromagnetic valve 7 is closed, the value of the pressure sensor 2 is read, the value is compared with the set pressure value, if the air blowing backwater fails, error information is transmitted to the general control SCADA system, and if the air blowing backwater action is up to standard, the air blowing backwater action is successfully completed.
Working principle: firstly, injecting compressed gas with certain pressure into a tested piece 9 through a tested channel, recording pressure difference values before and after inflation, and judging whether the airtight detection is successful or not through the pressure difference values;
then, after the air tightness detection is finished, water is injected into the tested piece 9 through the circulating water pump 6, and whether the water injection is successful or not is judged through a flow value;
and finally, after water injection is completed, injecting compressed air into the channel of the tested piece after the channel of the tested piece water tank 15 is tested, blowing out the medium in the channel, and judging whether the blowing backwater is successful or not according to the pressure value in the channel after the blowing backwater is completed.
The pneumatic angle seat valve 11 is kept open during the air blowing backwater action, meanwhile, the air inlet electromagnetic valve 7 is kept open, and the circulating water pump 6 is closed, so that compressed air passes through a tested channel connected with the tested piece 9, and liquid medium left in the tested channel after water injection is completed is blown into the tested piece water tank 15; when the air blowing backwater action reaches the set time, the air inlet electromagnetic valve 7 and the pneumatic angle seat valve 11 are closed, whether the numerical value of the pressure sensor 2 is smaller than a preset value is detected, and if the numerical value is smaller than the preset value, the air blowing backwater action is successfully completed.
Through the operation steps, the tightness detection can be automatically and continuously carried out on the internal channel of the electric drive motor, the labor intensity is reduced, the detection precision is improved, the operation steps are more in line with the actual use effect, and the follow-up use is facilitated.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (8)
1. A liquid supply system for testing an electric drive motor based on a temperature control integrated machine,
comprises a tested piece (9) and a tested piece water tank (15), and is characterized in that,
a floating ball liquid level switch (14) is arranged in the tested piece water tank (15), and a magnetic floating ball liquid level meter (13) is arranged at the top of the tested piece water tank (15);
the tested water tank (15) is provided with a tested channel which is a water supply pipeline and a water return pipeline respectively,
the bottom of the tested piece water tank (15) is provided with a circulating water pump (6), and the return water pipeline is provided with an ultrasonic flowmeter (5), a mechanical pressure gauge (4), a differential pressure switch (3), a one-way valve (17), a pressure sensor (2) and a temperature sensor (1) which are distributed according to a water outlet route; an air inlet pipeline is fixedly connected to the water return pipeline, a first check valve (16) and a second check valve (18) are arranged on the air inlet pipeline, and an air inlet electromagnetic valve (7) and an air source processor (8) are arranged between the first check valve (16) and the second check valve (18);
the water supply pipeline is provided with a temperature sensor (10), a pneumatic angle seat valve (11) and a filter differential pressure switch (12), and the tested piece water tank (15) is provided with a water return port which is connected with the water return pipeline through a tested piece.
2. The application method of the liquid supply system for testing the electric drive motor based on the temperature control integrated machine according to claim 1 comprises the following operation steps:
s1: injecting compressed gas with certain pressure into a tested piece (9) through a tested channel, recording pressure difference values before and after inflation, and judging whether the airtight detection is successful or not through the pressure difference values;
s2: after the air tightness detection is finished, water is injected into a tested piece (9) through a circulating water pump (6), and whether water injection is successful or not is judged through a flow value;
s3: after water injection is completed, compressed air is injected into the channel of the tested piece again after the channel of the tested piece water tank (15) is tested, the medium in the channel is blown out, and whether air blowing backwater is successful or not is judged through the pressure value in the channel after air blowing backwater is completed.
3. The method for using the liquid supply system for testing the electric drive motor based on the temperature control integrated machine according to claim 2, wherein in the step S1, after the airtight detection action is completed, the circulating water pump (6) is started to inject the test medium into the tested channel of the tested piece (9), and when the ultrasonic flowmeter (5) detects that the medium flow is lower than the preset flow during the water injection action, the rotation speed of the circulating water pump (6) is increased by frequency conversion of the frequency converter to increase the flow;
when the airtight detection is started, the pressure sensor (2) detects whether the pressure of the air source processor (8) reaches a preset value, if the pressure is larger than the preset value, the air inlet electromagnetic valve (7) is opened, the air inlet electromagnetic valve (7) is closed after the air source air pressure detection is passed, the pneumatic angle seat valve (11) is kept closed, the system enters an airtight pressure maintaining detection stage, and the pressure difference value between the pressure sensor (2) before and after the inflation detection and the pressure maintaining detection is recorded and compared with the preset pressure difference value.
4. The method for using the liquid supply system for testing the electric drive motor based on the temperature control integrated machine according to claim 3, wherein,
in the step S1, the criterion for judging whether the success is successful is: if the water injection action is successfully completed within the set time and reaches the set flow value, otherwise, the task fails;
in the step S2, the criterion for judging whether to succeed is: comparing the detected air inflation and pressure maintaining with preset pressure difference values before and after the detection, if the detected air inflation and pressure maintaining are larger than the preset pressure difference values, the airtight detection action is successfully completed, otherwise, the task fails;
in the step S3, the criterion for judging whether the success is successful is: judging whether the value of the pressure sensor (2) is smaller than a preset value, if so, successfully completing the air blowing backwater action, otherwise, failing the task.
5. The method for using the liquid supply system for testing the electric drive motor based on the temperature control integrated machine according to claim 2, wherein in the step S2, the pneumatic angle seat valve (11) is kept open during the air blowing back water action, meanwhile, the air inlet electromagnetic valve (7) is kept open, the circulating water pump (6) is closed, so that compressed gas passes through the tested channel connected with the tested piece (9), and the liquid medium left in the tested channel after the water injection is completed is blown into the tested piece water tank (15).
6. The method for using the liquid supply system for testing the electric drive motor based on the temperature control integrated machine according to claim 2, wherein in the step S3, when the air blowing backwater action reaches the set time, the air intake electromagnetic valve (7) and the pneumatic angle seat valve (11) are closed, and whether the value of the pressure sensor (2) is smaller than a preset value is detected, if so, the air blowing backwater action is successfully completed.
7. The method for using a liquid supply system for testing an electric drive motor based on a temperature control integrated machine according to claim 4, wherein in the step S1, if the task is determined to be failed, the previous step is returned.
8. The method for using the liquid supply system for the electric drive motor test based on the temperature control integrated machine according to claim 2, wherein the magnetic ball liquid level meter (13) controls the circulating water pump (6) by detecting the liquid level of the tested piece water tank (15), and when the liquid level is lower than a set value, the circulating water pump (6) is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310373242.4A CN116539239A (en) | 2023-04-10 | 2023-04-10 | Liquid supply system and method for testing electric drive motor based on temperature control integrated machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310373242.4A CN116539239A (en) | 2023-04-10 | 2023-04-10 | Liquid supply system and method for testing electric drive motor based on temperature control integrated machine |
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| CN116539239A true CN116539239A (en) | 2023-08-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117849895A (en) * | 2023-12-25 | 2024-04-09 | 北京清大天达光电科技股份有限公司 | Cavity foreign matter detection device |
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2023
- 2023-04-10 CN CN202310373242.4A patent/CN116539239A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117849895A (en) * | 2023-12-25 | 2024-04-09 | 北京清大天达光电科技股份有限公司 | Cavity foreign matter detection device |
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