CN211178943U - Durability and reliability comprehensive test bench for wiper system - Google Patents
Durability and reliability comprehensive test bench for wiper system Download PDFInfo
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- CN211178943U CN211178943U CN201922222773.5U CN201922222773U CN211178943U CN 211178943 U CN211178943 U CN 211178943U CN 201922222773 U CN201922222773 U CN 201922222773U CN 211178943 U CN211178943 U CN 211178943U
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 159
- 239000002002 slurry Substances 0.000 claims abstract description 55
- 239000007921 spray Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 11
- 238000007790 scraping Methods 0.000 description 13
- 238000005507 spraying Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model relates to a durable reliability comprehensive test bench of windscreen wiper system, including clear water feeding device and mud feeding device, the clear water delivery outlet of the said clear water feeding device and mud delivery outlet of the said mud feeding device are connected with shower nozzle; the clear water supply device is provided with a water tank, the water tank is connected with a clear water output pipe, and a water pump and a first electromagnetic valve are arranged on the clear water output pipe; the slurry supply device is provided with a slurry tank, the slurry tank is connected with a slurry output pipe, and a slurry pump and a second electromagnetic valve are arranged on the slurry output pipe; and the signal input ends of the water pump driving unit, the mud pump driving unit, the first motor driving unit, the first electromagnetic valve and the second electromagnetic valve are connected with the rack control unit. The utility model discloses a set up clear water feeding device and mud feeding device, can realize that wet operation is experimental and the mud is experimental to can realize experimenting, easy operation is convenient through control solenoid valve, water pump or slush pump.
Description
Technical Field
The utility model relates to a durable reliability integrated test rack of windscreen wiper system.
Background
The automobile windscreen wiper is an important component of an active safety system and is important for guaranteeing clear front view of a vehicle. If the windscreen wiper works abnormally, rain and snow on the front windshield can not be scraped off in time when the windscreen wiper runs in a rainy and snowy day, so that the windscreen wiper is difficult to run due to unclear sight and has potential safety hazards. The wiper system has failure modes such as motor ablation, unclean scraping, link rod vibration and abnormal sound, and the problems can be detected in a durability test. In order to ensure the durability and reliability of the windscreen wiper, the automobile windscreen wiper needs to be tested and verified. In the prior art, the test bench for the automobile windscreen wiper has the defects of limited application range, single function, low automation degree and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a durable reliability integrated test rack of windscreen wiper system, it is easy and simple to handle, can realize multiple windscreen wiper test.
The technical scheme for realizing the purpose of the utility model is as follows:
the utility model provides a windscreen wiper system endurance reliability integrated test rack, scrapes the pole including windshield support, windshield wiper, the pole can swing under first motor drive is scraped to the windshield wiper, and the top of windshield support is equipped with the shower nozzle, and windshield support, windshield wiper scrape the pole and lie in the rack, and the rack below is equipped with water receiving tank, its characterized in that:
the clean water outlet of the clean water supply device and the slurry outlet of the slurry supply device are both connected with the spray head; the clear water supply device is provided with a water tank, the water tank is connected with a clear water output pipe, and a water pump and a first electromagnetic valve are arranged on the clear water output pipe; the slurry supply device is provided with a slurry tank, the slurry tank is connected with a slurry output pipe, and a slurry pump and a second electromagnetic valve are arranged on the slurry output pipe; and the signal input ends of the water pump driving unit, the mud pump driving unit, the first motor driving unit, the first electromagnetic valve and the second electromagnetic valve are connected with the rack control unit.
Furthermore, a water tank of the clear water supply device is connected with a clear water input pipe, and a third electromagnetic valve is arranged on the clear water input pipe; the water tank is provided with a liquid level sensor and a first pressure sensor, and the third electromagnetic valve, the liquid level sensor and the first pressure sensor are connected with the rack control unit.
Furthermore, a first flow sensor and a second pressure sensor are arranged on a clean water output pipe of the clean water supply device; and the signal output ends of the first flow sensor and the second pressure sensor are connected with the rack control unit.
Further, a stirrer is arranged in the mud tank of the mud supply device, and the stirrer can be driven by a second motor to rotate.
Furthermore, a second flow sensor and a third pressure sensor are arranged on a slurry output pipe of the slurry supply device; and signal output ends of the second flow sensor and the third pressure sensor are connected with the rack control unit.
Furthermore, the water receiving tank is provided with a clear water outlet and a slurry outlet, the clear water outlet is connected with a circulating return pipe, and the circulating return pipe is communicated with a water tank of the clear water supply device.
Furthermore, a wiper rod of the wiper is connected with a wiper blade, and the bottom of the wiper blade is connected with a distributed film pressure sensor; the film pressure sensor is connected with the rack control unit.
The utility model discloses beneficial effect who has:
the utility model comprises a clear water supply device and a slurry supply device, wherein the clear water outlet of the clear water supply device and the slurry outlet of the slurry supply device are both connected with a spray head; the clear water supply device is provided with a water tank, the water tank is connected with a clear water output pipe, and a water pump and a first electromagnetic valve are arranged on the clear water output pipe; the slurry supply device is provided with a slurry tank, the slurry tank is connected with a slurry output pipe, and a slurry pump and a second electromagnetic valve are arranged on the slurry output pipe. The utility model discloses a set up clear water feeding device and mud feeding device, can realize that wet operation is experimental and the mud is experimental to can realize experimenting, easy operation is convenient through control solenoid valve, water pump or slush pump.
The water tank of the clear water supply device of the utility model is connected with the clear water input pipe, and the clear water input pipe is provided with a third electromagnetic valve; the water tank is provided with a liquid level sensor and a first pressure sensor, and the third electromagnetic valve, the liquid level sensor and the first pressure sensor are connected with the rack control unit. When the water in the water tank reaches the preset water level, the third electromagnetic valve cuts off the water source under the action of the liquid level sensor. When the water level of water tank descends, pressure sensor detects pressure and can diminishes, and when pressure is little to a certain extent, the water level was lower promptly, the third solenoid valve was opened, the switch-on water source, the running water flowed into the water tank, and degree of automation is high, convenient operation more.
The utility model discloses the water receiving tank is equipped with clear water export and mud export, the clear water export connects the circulation back flow, the circulation back flow communicates with each other with clear water feeding device's water tank to realize the cyclic utilization of clear water, save the water resource.
The clean water output pipe of the clean water supply device of the utility model is provided with a first flow sensor and a second pressure sensor; and a second flow sensor and a third pressure sensor are arranged on a slurry output pipe of the slurry supply device. The utility model discloses a flow sensor, pressure sensor can carry out real time monitoring, the more convenient test to flow, the pressure of clear water output tube or mud output tube.
The wiper rod of the utility model is connected with the wiper blade, and the bottom of the wiper blade is connected with the distributed film pressure sensor; the utility model discloses a film pressure sensor can test doctor-bar pressure to make the test more comprehensive.
Drawings
FIG. 1 is a schematic circuit block diagram of the present invention;
FIG. 2 is a schematic structural view of the clean water supply apparatus of the present invention;
FIG. 3 is a schematic structural view of a slurry supply apparatus according to the present invention;
fig. 4 is a schematic view showing an operation state in which the wiper blade is mounted to the wiper blade;
fig. 5 is a schematic view of a blade pressure test point.
Detailed Description
As shown in fig. 2 and 3, the test bench includes a windshield support 20 and a wiper blade 15, the windshield 14 is placed on the windshield support 20, the wiper blade 15 can swing under the driving of a first motor, a spray head 13 is arranged above the windshield support 20, the windshield support 20 and the wiper blade 15 are positioned on the bench, and a water receiving tank 17 is arranged below the bench. Also comprises a clear water supply device and a slurry supply device.
Clear water supply device:
as shown in figure 2, a water tank 6 of the clear water supply device is connected with a clear water input pipe, a third electromagnetic valve 3 is arranged on the clear water input pipe, a water tap 2 is arranged on the clear water input pipe, and the input end of the clear water input pipe is connected with an external water source 1. The water tank 6 is provided with a liquid level sensor 4 and a first pressure sensor 5.
The water tank 6 is connected with a clean water output pipe, a water pump 7, a first electromagnetic valve 10 and an overflow valve 9 are arranged on the clean water output pipe, and the water pump 7, the first electromagnetic valve 10 and the overflow valve 9 are correspondingly communicated through a tee joint 8. A first flow sensor 11 and a second pressure sensor 12 are arranged on a clean water output pipe of the clean water supply device. The output end of the clear water output pipe is connected with the spray head 13.
As shown in fig. 2, the water receiving tank is provided with a clean water outlet 19 and a slurry outlet 18, the clean water outlet 19 is connected with a circulation return pipe, and the circulation return pipe is communicated with the water tank 6 of the clean water supply device.
Slurry supply device:
as shown in fig. 3, the slurry supply apparatus has a slurry tank 21, and a stirrer 22 is provided in the slurry tank 21, and the stirrer 22 is driven to rotate by a second motor 23. The mud tank 21 is connected with a mud output pipe, and a mud pump 24 and a second electromagnetic valve 27 are arranged on the mud output pipe; the mud output pipe is provided with a second flow sensor 28 and a third pressure sensor 29. An overflow valve 26 is arranged, and the overflow valve 26, a second electromagnetic valve 27 and the mud pump 24 are communicated through a tee joint 25.
As shown in figure 1, the signal input ends of the water pump driving unit, the mud pump driving unit, the first motor driving unit, the first electromagnetic valve and the second electromagnetic valve are connected with the rack control unit, the third electromagnetic valve, the liquid level sensor and the first pressure sensor are connected with the rack control unit, the first flow sensor and the second pressure sensor are connected with the rack control unit, the second flow sensor and the third pressure sensor are connected with the rack control unit, the rack control unit is connected with the second motor driving unit, and the rack control unit adopts P L C.
Windscreen wiper pressure test device:
as shown in fig. 4, the wiper blade 40 is attached to the wiper blade 15, and the wiper blade 40 swings left and right with the wiper blade 15. As shown in FIG. 5, the bottom of the wiper blade 40 is connected to a distributed membrane pressure sensor, A, B, C, D, E in FIG. 5 being the various pressure test points. The film pressure sensor is connected with the rack control unit.
(I) Wet running test
The requirements specified by the test standards are:
1) after the wiper was activated, the cycle was started from high speed and 7.5 × 105 times.
2) Low speed cycle 7.5 × 105 times.
3) The total number of lifetimes was 1.5 × 106.
4) The wiping frequency was changed every 2.5 × 105 times, and the wiper blade was changed every 5 × 105 times.
5) The timing diagram of the cycle working condition is as follows: wet scraping operation 330s, dry scraping operation 30s, and batch time 6 s.
The parameters are set as default values, and according to actual needs, the following steps can be achieved:
1) the wiping frequency and the number of cycles can be set as desired.
2) The total number of lifetimes may be set as desired.
3) The wet scraping operation, the dry scraping operation and the intermittent time of the cycle working condition time chart can be set according to requirements.
During the test, the tap 2 is opened, and tap water directly enters the water tank 6 through the third electromagnetic valve 3. When the water in the water tank 6 reaches a preset water level, the liquid level sensor 4 (liquid level switch) transmits a signal to the rack control unit, and the rack control unit enables the third electromagnetic valve 3 to be attracted so as to cut off the water source. When the water level of the water tank 6 drops, the first pressure sensor 5 detects that the pressure is reduced, and when the pressure is reduced to a certain degree, namely the water level is lower, the rack control unit controls the third electromagnetic valve 3 to be opened, the water source is connected, and tap water flows into the water tank 6.
During testing, the rack control unit controls the water pump 7 and the first electromagnetic valve 10 to be opened, water in the water tank 6 is pumped out through the water pump 7 and flows to the spray head 13 along the water pipe through the tee joint 8, the first flow sensor 11 and the second pressure sensor 12, and the spray head 13 sprays water to the windshield 14. Meanwhile, the rack control unit controls the first motor, and the scraping rod 15 drives the scraping blade 40 to swing under the driving of the first motor. When the water supply is not needed, the stand control unit can control the first electromagnetic valve 10 to be closed, and the water pumped by the water pump 7 flows back to the water tank 6 through the overflow valve 9.
During the test, the set default value time sequence cycle period is as follows: the water spraying time 330s is cycled for a period of 36 seconds without spraying water. The various parameters of the program, such as the time to spray water, the time to not spray water, the time to stop, are set to be adjustable as desired. The water used for the test flows through the glass to the water receiving tank 17. At this point, the slurry outlet 18 in the tank 17 is closed and the water is filtered through the clean water outlet 19 and flows through the pipeline to the tank 6.
(II) slurry test
The test requirements are as follows:
1) the mud flow is controlled at 30ml-50 ml/s.
2) After spraying the slurry for 3 seconds, spraying water for 27 seconds. And so on, cyclically reciprocating.
3) The low-speed and high-speed cross scraping and brushing are taken as one cycle, and the total number is 120 cycles.
4) The total number of cycles of the mud test can be set.
5) The time for stirring the slurry evenly can be set.
Before the test, the mud tank 21 is filled with enough water for the test and the prepared mud. Before the mud pump 24 works, the second motor 23 drives the stirrer 22 connected with the second motor to stir the mud-water mixture fully, so that the mud is in a suspension state. During the test, the stirrer 2 is always in the working state.
During the mud test, the bench control unit controls the mud pump 24 to start, the mud in the mud tank 21 is pumped out by the mud pump 4, flows to the spray head 13 along the pipeline through the tee joint 25, the second electromagnetic valve 27, the second flow sensor 28 and the third pressure sensor 29, and the spray head 13 sprays the mud to the windshield 14. Meanwhile, the rack control unit controls the first motor, and the scraping rod 15 drives the scraping blade 40 to swing under the driving of the first motor.
After spraying the slurry for 3 seconds, the clear water supply device starts to work, and the water is sprayed for 27 seconds. Then, the slurry was sprayed for 3 seconds, and then water was sprayed for 27 seconds, thereby circulating the slurry. The muddy water flows to the water receiving tank 17 through the glass. At this time, the clear water outlet 19 in the water receiving tank 17 is closed, and the muddy water is discharged through the muddy water outlet 18.
(III) doctor blade pressure test
The distributed membrane pressure sensor is mounted between the windshield and the blade of the wiper rod.
Under the drive of the first motor, the film pressure sensor is driven to swing along with the scraping rod and the scraping blade and can rotate to a specific position. And when the time delay is stopped at a specific position, the rack control unit reads the pressure value of each point on the scraping blade through the film pressure sensor. By reading the blade pressure values at all positions, a pressure distribution curve can be drawn.
Claims (7)
1. The utility model provides a windscreen wiper system endurance reliability integrated test rack, scrapes the pole including windshield support, windshield wiper, the pole can swing under first motor drive is scraped to the windshield wiper, and the top of windshield support is equipped with the shower nozzle, and windshield support, windshield wiper scrape the pole and lie in the rack, and the rack below is equipped with water receiving tank, its characterized in that:
the clean water outlet of the clean water supply device and the slurry outlet of the slurry supply device are both connected with the spray head; the clear water supply device is provided with a water tank, the water tank is connected with a clear water output pipe, and a water pump and a first electromagnetic valve are arranged on the clear water output pipe; the slurry supply device is provided with a slurry tank, the slurry tank is connected with a slurry output pipe, and a slurry pump and a second electromagnetic valve are arranged on the slurry output pipe; and the signal input ends of the water pump driving unit, the mud pump driving unit, the first motor driving unit, the first electromagnetic valve and the second electromagnetic valve are connected with the rack control unit.
2. The wiper system endurance reliability integrated test bench of claim 1 further comprising: the water tank of the clear water supply device is connected with a clear water input pipe, and a third electromagnetic valve is arranged on the clear water input pipe; the water tank is provided with a liquid level sensor and a first pressure sensor; and the third electromagnetic valve, the liquid level sensor and the first pressure sensor are connected with the rack control unit.
3. The wiper system endurance reliability integrated test bench of claim 2 further comprising: a first flow sensor and a second pressure sensor are arranged on a clean water output pipe of the clean water supply device; and the signal output ends of the first flow sensor and the second pressure sensor are connected with the rack control unit.
4. The wiper system endurance reliability integrated test bench of claim 1 further comprising: and a stirrer is arranged in a slurry tank of the slurry supply device and can be driven by a second motor to rotate.
5. The wiper system endurance reliability integrated test bench of claim 4 further characterized in that: a second flow sensor and a third pressure sensor are arranged on a slurry output pipe of the slurry supply device; and signal output ends of the second flow sensor and the third pressure sensor are connected with the rack control unit.
6. The wiper system endurance reliability comprehensive test bench of any one of claims 1 to 5, wherein: the water receiving tank is provided with a clear water outlet and a slurry outlet, the clear water outlet is connected with a circulating return pipe, and the circulating return pipe is communicated with a water tank of the clear water supply device.
7. The wiper system endurance reliability integrated test bench of claim 6 further comprising: the wiper rod of the windshield wiper is connected with the wiper blade, and the bottom of the wiper blade is connected with the distributed film pressure sensor; the film pressure sensor is connected with the rack control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922222773.5U CN211178943U (en) | 2019-12-12 | 2019-12-12 | Durability and reliability comprehensive test bench for wiper system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922222773.5U CN211178943U (en) | 2019-12-12 | 2019-12-12 | Durability and reliability comprehensive test bench for wiper system |
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| Publication Number | Publication Date |
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| CN211178943U true CN211178943U (en) | 2020-08-04 |
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| CN201922222773.5U Active CN211178943U (en) | 2019-12-12 | 2019-12-12 | Durability and reliability comprehensive test bench for wiper system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116223065A (en) * | 2023-05-08 | 2023-06-06 | 青岛迈朗格智能制造有限公司 | Windscreen wiper quality detection device influenced by sand and dust and detection method thereof |
-
2019
- 2019-12-12 CN CN201922222773.5U patent/CN211178943U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116223065A (en) * | 2023-05-08 | 2023-06-06 | 青岛迈朗格智能制造有限公司 | Windscreen wiper quality detection device influenced by sand and dust and detection method thereof |
| CN116223065B (en) * | 2023-05-08 | 2023-08-18 | 青岛迈朗格智能制造有限公司 | Windscreen wiper quality detection device influenced by sand and dust and detection method thereof |
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