CN112855390A - EGR valve on-line measuring platform - Google Patents
EGR valve on-line measuring platform Download PDFInfo
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- CN112855390A CN112855390A CN202110287561.4A CN202110287561A CN112855390A CN 112855390 A CN112855390 A CN 112855390A CN 202110287561 A CN202110287561 A CN 202110287561A CN 112855390 A CN112855390 A CN 112855390A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/49—Detecting, diagnosing or indicating an abnormal function of the EGR system
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Abstract
The invention discloses an EGR valve online detection platform, which comprises a test tool, a leak detector and a controller, and is characterized in that: the test tool comprises a bottom plate, a product positioning piece and a material pressing mechanism, wherein the product positioning piece and the material pressing mechanism are arranged on the bottom plate; the product positioning piece comprises a first positioning block and a second positioning block, the second positioning block is arranged on the front side of the first positioning block, a first positioning groove is formed in the top of the first positioning block, a rubber limiting frame is arranged on the bottom surface of the first positioning groove, a space is formed between the outer edge of the rubber limiting frame and the inner wall of the first positioning groove, the top of the rubber limiting frame protrudes above the top surface of the first positioning groove, and a height difference of 1-3 cm is formed between the top of the rubber limiting frame and the top surface of the first positioning block; the material pressing mechanism is arranged right above the first positioning groove. The invention improves the detection precision and quality.
Description
Technical Field
The invention relates to a valve, in particular to an EGR valve online detection platform.
Background
An EGR valve is a mechatronic product mounted on an engine for controlling the amount of exhaust gas recirculation fed back to the intake system. It is usually located on the right side of the intake manifold, near the throttle body, and a short metal tube leading to the exhaust manifold is connected to it. The function of the exhaust gas recirculation system is to control the amount of exhaust gas entering the intake manifold so that a certain amount of exhaust gas flows into the intake manifold for recirculation. EGR valves are a very important, critical component in exhaust gas recirculation devices.
After the EGR valve is produced, detection is needed to detect whether the leakage quantity of the EGR valve is qualified or not. In the prior art, when detecting, all be artifical handheld product under the general condition and utilize the leak hunting appearance to detect, utilize the leak hunting appearance to come the tester to let out leakage quantity. However, this method is inefficient in testing and labor-intensive for the operator, and also results in poor precision and quality of precision measurement due to operator manipulation problems.
Disclosure of Invention
The invention aims to provide an EGR valve online detection platform, and by using the structure, the detection efficiency and quality are improved.
In order to achieve the purpose, the invention adopts the technical scheme that: an EGR valve online detection platform comprises a test tool, a leakage detector and a controller, wherein the test tool and the leakage detector are electrically connected with the controller, the leakage detector is arranged beside the test tool, and the controller is installed on the outer wall of the leakage detector;
the test tool comprises a bottom plate, a product positioning piece and a material pressing mechanism, wherein the product positioning piece and the material pressing mechanism are arranged on the bottom plate;
the product positioning piece comprises a first positioning block and a second positioning block, the second positioning block is arranged on the front side of the first positioning block, a first positioning groove is formed in the top of the first positioning block, a rubber limiting frame is arranged on the bottom surface of the first positioning groove, a distance is formed between the outer edge of the rubber limiting frame and the inner wall of the first positioning groove, the top of the rubber limiting frame protrudes above the top surface of the first positioning groove, and a height difference of 1-3 cm is formed between the top of the rubber limiting frame and the top surface of the first positioning block;
a distance is arranged between the second positioning block and the first positioning block, two groups of limiting blocks are arranged at the top of the second positioning block, a strip-shaped distance is arranged between the two groups of limiting blocks, the strip-shaped distance is perpendicular to the front side surface of the first positioning block, and the tops of the limiting blocks are arranged below the front side of the top surface of the first positioning block;
the material pressing mechanism is arranged right above the first positioning groove.
In the technical scheme, the left side and the right side of the top of the second positioning block are respectively provided with a screw hole, and a locking bolt is screwed in each group of screw holes; and the top of each group of limiting blocks is provided with a stepped hole, the bottom of each locking bolt penetrates through the stepped hole to be connected with the screw hole in a threaded manner, and the limiting blocks are locked and installed on the top surface of the second positioning block by the locking bolts.
In the technical scheme, a rubber sealing layer is arranged at the bottom of the rubber limiting frame, two groups of through holes are formed in the rubber sealing layer, two groups of connecting screw holes are formed in the bottom surface of the first positioning groove and are right opposite to the through holes, a connecting bolt is inserted into each through hole, the bottom of each connecting bolt penetrates through each through hole and is connected with the corresponding connecting screw hole in a threaded mode, and the rubber sealing layer and the rubber limiting frame are locked in the first positioning groove through the connecting bolts.
In the technical scheme, the pressing mechanism comprises a vertical cylinder and a pressing block, a vertical plate is arranged on a bottom plate on the rear side of the first positioning block, the vertical cylinder is installed on the front end face of the vertical plate, the bottom of the pressing block is connected with an output shaft at the bottom of the vertical cylinder, and the pressing block is arranged right above the first positioning groove.
In the technical scheme, the bottom surface of the pressing block is provided with the rubber buffer layer.
In the technical scheme, a plurality of groups of air pipes are arranged on the leak detector, and an air pipe joint is arranged at the end part of each air pipe.
Among the above-mentioned technical scheme, the bottom surface positive center of first constant head tank is equipped with a sunken mounting groove, the mounting groove set up in the below of rubber sealing layer, install one in the mounting groove and touch the sensor, touch the sensor with be equipped with the interval between the bottom surface of rubber sealing layer, touch the sensor with the automatically controlled connection of controller.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. according to the invention, the product is positioned by using the test tool, and the product is subjected to leak detection by using the leak detector and the controller, so that the product is fixed in position in the test process, the detection precision is high, the quality is good, and the labor intensity of operators is low;
2. according to the invention, the rubber limit frame is arranged in the first positioning groove, so that the air outlet of a product can be blocked, and the product is pressed by using the pressing mechanism, thus the detection precision and the quality can be ensured to be high during detection;
3. the rubber sealing layer is arranged, the rubber limiting frame is further sealed on the basis of the rubber limiting frame, the sealing effect is better, meanwhile, the mounting groove and the touch sensor are arranged below the positioning groove, so that when leakage occurs, the deformation of the rubber sealing layer can be used for detecting the deformation of the rubber sealing layer, the detection accuracy is high, and the detection accuracy is high.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
fig. 2 is a schematic partial sectional view of a first positioning block according to an embodiment of the invention.
Wherein: 1. a leak detector; 2. a controller; 3. a base plate; 4. a first positioning block; 5. a second positioning block; 6. a first positioning groove; 7. a rubber limit frame; 8. a limiting block; 9. strip-shaped spacing; 10. a rubber sealing layer; 11. a connecting screw hole; 12. a connecting bolt; 13. a vertical cylinder; 14. briquetting; 15. a vertical plate; 16. a rubber buffer layer; 17. mounting grooves; 18. a touch sensor.
Detailed Description
The invention is further described with reference to the following figures and examples:
the first embodiment is as follows: referring to fig. 1 and 2, the online detection platform for the EGR valve comprises a test tool, a leak detector 1 and a controller 2, wherein the test tool and the leak detector are electrically connected with the controller, the leak detector is arranged beside the test tool, and the controller is arranged on the outer wall of the leak detector;
the test tool comprises a bottom plate 3, a product positioning piece and a material pressing mechanism, wherein the product positioning piece and the material pressing mechanism are arranged on the bottom plate;
the product positioning piece comprises a first positioning block 4 and a second positioning block 5, the second positioning block is arranged on the front side of the first positioning block, a first positioning groove 6 is formed in the top of the first positioning block, a rubber limiting frame 7 is arranged on the bottom surface of the first positioning groove, a space is formed between the outer edge of the rubber limiting frame and the inner wall of the first positioning groove, the top of the rubber limiting frame protrudes above the top surface of the first positioning groove, and a height difference of 1-3 cm is formed between the top of the rubber limiting frame and the top surface of the first positioning block;
a distance is arranged between the second positioning block and the first positioning block, two groups of limiting blocks 8 are arranged at the top of the second positioning block, a strip-shaped distance 9 is arranged between the two groups of limiting blocks, the strip-shaped distance is perpendicular to the front side face of the first positioning block, and the tops of the limiting blocks are arranged below the front side of the top face of the first positioning block;
the material pressing mechanism is arranged right above the first positioning groove.
In this embodiment, in the time of actual detection, directly insert first locating slot with the gas outlet department of product, and the interval between first locating piece and the second locating piece then is used for the lateral part location of product, utilize the bar interval between two sets of stoppers to fix a position the intake pipe, guarantee placing location efficiency of product, after the location is accomplished, then utilize swager to push down the product, compress tightly the product on first locating piece and second locating piece, wherein, the spacing frame of rubber disect insertion is on the gas outlet of product, utilize the spacing frame of rubber to plug up its gas outlet, and first locating slot then fixes a position the outside of gas outlet, prevent gas leakage. Then recycle the trachea and be connected leak hunting appearance and product, the work of leak hunting appearance is controlled to rethread controller for detect and let out leakage quantity, product position is fixed like this, and detection efficiency is high, and the precision is high, and is of high quality moreover.
The left side and the right side of the top of the second positioning block are respectively provided with a screw hole, and a locking bolt is screwed in each group of screw holes; and the top of each group of limiting blocks is provided with a stepped hole, the bottom of each locking bolt penetrates through the stepped hole to be connected with the screw hole in a threaded manner, and the limiting blocks are locked and installed on the top surface of the second positioning block by the locking bolts.
Through setting up two sets of screws and locking bolt, the installation and the change of the stopper of being convenient for can change not unidimensional stopper like this according to the size of product intake pipe, adjusts the distance of bar interval, is applicable to the product of not unidimensional intake pipe, and application scope is wider.
Referring to fig. 1 and 2, a rubber sealing layer 10 is arranged at the bottom of the rubber limiting frame, two groups of through holes are formed in the rubber sealing layer, two groups of connecting screw holes 11 are formed in the bottom surface of the first positioning groove and are opposite to the through holes, a connecting bolt 12 is inserted into each group of through holes, the bottom of each connecting bolt penetrates through the through hole and is connected with the corresponding connecting screw hole in a threaded manner, and the rubber sealing layer and the rubber limiting frame are locked in the first positioning groove through the connecting bolt.
Through the setting of rubber sealing layer and connecting bolt, can plug up the bottom of the spacing frame of rubber like this for plug up the gas outlet of product completely, prevent the emergence of gas leakage phenomenon, moreover, if the wearing and tearing need be changed appear, directly with connecting bolt screw down change can, convenient and fast, be convenient for change.
Referring to fig. 1, the pressing mechanism includes a vertical cylinder 13 and a pressing block 14, a vertical plate 15 is disposed on a bottom plate behind the first positioning block, the vertical cylinder is mounted on a front end face of the vertical plate, a bottom of the pressing block is connected with an output shaft at the bottom of the vertical cylinder, and the pressing block is disposed right above the first positioning groove.
And a rubber buffer layer 16 is arranged on the bottom surface of the pressing block.
When vertical cylinder output shaft stretches out, can utilize briquetting and rubber buffer layer to push down the product, fix a position the product on first locating piece and second locating piece, guarantee in the test, the product can not appear rocking, guarantees detection stability and quality.
The leak detector is provided with a plurality of groups of air pipes, and the end part of each air pipe is provided with an air pipe joint. The device is directly connected with a product and used for detecting leakage and leakage amount of the product.
Referring to fig. 2, a sunken installation groove 17 is formed in the center of the bottom surface of the first positioning groove, the installation groove is formed below the rubber sealing layer, a touch sensor 18 is installed in the installation groove, a gap is formed between the touch sensor and the bottom surface of the rubber sealing layer, and the touch sensor is electrically connected with the controller.
In this embodiment, when the product leaks hunting, ventilate inside the product, give certain atmospheric pressure, after giving atmospheric pressure like this, can promote the rubber sealing layer and warp, because the existence of mounting groove, the rubber sealing layer can be followed mounting groove and warp, make the rubber sealing layer warp downwards, detect until with touching the sensor, explain inside not leaking gas temporarily, after keeping a period, if leak gas appears, the leak detector can detect, and, the rubber sealing layer resumes gradually, break away from and touch the contact of sensor, calculate the break-away time like this can, can derive and reveal the volume and whether qualified the time of revealing, realize the detection accuracy and the quality of product.
Claims (7)
1. The utility model provides an EGR valve on-line measuring platform, includes test fixture, leak hunting appearance and controller, the test fixture reaches the leak hunting appearance with the automatically controlled connection of controller, its characterized in that: the leak detector is arranged beside the test tool, and the controller is arranged on the outer wall of the leak detector;
the test tool comprises a bottom plate, a product positioning piece and a material pressing mechanism, wherein the product positioning piece and the material pressing mechanism are arranged on the bottom plate;
the product positioning piece comprises a first positioning block and a second positioning block, the second positioning block is arranged on the front side of the first positioning block, a first positioning groove is formed in the top of the first positioning block, a rubber limiting frame is arranged on the bottom surface of the first positioning groove, a distance is formed between the outer edge of the rubber limiting frame and the inner wall of the first positioning groove, the top of the rubber limiting frame protrudes above the top surface of the first positioning groove, and a height difference of 1-3 cm is formed between the top of the rubber limiting frame and the top surface of the first positioning block;
a distance is arranged between the second positioning block and the first positioning block, two groups of limiting blocks are arranged at the top of the second positioning block, a strip-shaped distance is arranged between the two groups of limiting blocks, the strip-shaped distance is perpendicular to the front side surface of the first positioning block, and the tops of the limiting blocks are arranged below the front side of the top surface of the first positioning block;
the material pressing mechanism is arranged right above the first positioning groove.
2. The EGR valve online detection platform of claim 1, wherein: the left side and the right side of the top of the second positioning block are respectively provided with a screw hole, and a locking bolt is screwed in each group of screw holes; and the top of each group of limiting blocks is provided with a stepped hole, the bottom of each locking bolt penetrates through the stepped hole to be connected with the screw hole in a threaded manner, and the limiting blocks are locked and installed on the top surface of the second positioning block by the locking bolts.
3. The EGR valve online detection platform of claim 1, wherein: the bottom of the rubber limit frame is provided with a rubber sealing layer, the rubber sealing layer is provided with two groups of through holes, the bottom surface of the first positioning groove is provided with two groups of connecting screw holes which are right opposite to the through holes, each group of connecting screw holes are inserted with connecting bolts, the bottoms of the connecting bolts penetrate through the through holes and are connected with the connecting screw holes in a threaded manner, and the connecting bolts lock the rubber sealing layer and the rubber limit frame in the first positioning groove.
4. The EGR valve online detection platform of claim 1, wherein: the pressing mechanism comprises a vertical cylinder and a pressing block, a vertical plate is arranged on a bottom plate on the rear side of the first positioning block, the vertical cylinder is installed on the front end face of the vertical plate, the bottom of the pressing block is connected with an output shaft at the bottom of the vertical cylinder, and the pressing block is arranged right above the first positioning groove.
5. The EGR valve online detection platform of claim 4, wherein: and a rubber buffer layer is arranged on the bottom surface of the pressing block.
6. The EGR valve online detection platform of claim 1, wherein: the leak detector is provided with a plurality of groups of air pipes, and the end part of each group of air pipes is provided with an air pipe joint.
7. The EGR valve online detection platform of claim 3, wherein: the bottom surface positive center of first constant head tank is equipped with a sunken mounting groove, the mounting groove set up in the below of rubber sealing layer, install one in the mounting groove and touch the sensor, touch the sensor with be equipped with the interval between the bottom surface of rubber sealing layer, touch the sensor with the automatically controlled connection of controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110287561.4A CN112855390A (en) | 2021-03-17 | 2021-03-17 | EGR valve on-line measuring platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110287561.4A CN112855390A (en) | 2021-03-17 | 2021-03-17 | EGR valve on-line measuring platform |
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| Publication Number | Publication Date |
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| CN112855390A true CN112855390A (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110287561.4A Pending CN112855390A (en) | 2021-03-17 | 2021-03-17 | EGR valve on-line measuring platform |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202350987U (en) * | 2011-11-22 | 2012-07-25 | 宜宾天瑞达汽车零部件有限公司 | Negative-pressure exhaust gas recycle (EGR) valve leakage detection craft equipment |
| CN102759444A (en) * | 2012-06-29 | 2012-10-31 | 宜宾天瑞达汽车零部件有限公司 | EGR (Exhaust Gas Recirculation) valve detection device of linear motor |
| CN103335859A (en) * | 2013-06-27 | 2013-10-02 | 新昌县瑞宏自动化设备有限公司 | Electrical control type EGR valve performance testing table |
| CN104457517A (en) * | 2014-11-28 | 2015-03-25 | 无锡隆盛科技股份有限公司 | Detection device for valve base of electric EGR valve |
| CN106050486A (en) * | 2016-08-01 | 2016-10-26 | 无锡隆盛科技股份有限公司 | EGR valve opening force detection device |
| KR20180080031A (en) * | 2017-01-03 | 2018-07-11 | 창원대학교 산학협력단 | EGR Valve Inspection Equipment |
| CN110823472A (en) * | 2019-10-31 | 2020-02-21 | 江门龙浩智能装备有限公司 | Leak detection device for EGR core body |
| CN214787748U (en) * | 2021-03-17 | 2021-11-19 | 太仓源凯汽车配件有限公司 | EGR valve on-line measuring platform |
-
2021
- 2021-03-17 CN CN202110287561.4A patent/CN112855390A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202350987U (en) * | 2011-11-22 | 2012-07-25 | 宜宾天瑞达汽车零部件有限公司 | Negative-pressure exhaust gas recycle (EGR) valve leakage detection craft equipment |
| CN102759444A (en) * | 2012-06-29 | 2012-10-31 | 宜宾天瑞达汽车零部件有限公司 | EGR (Exhaust Gas Recirculation) valve detection device of linear motor |
| CN103335859A (en) * | 2013-06-27 | 2013-10-02 | 新昌县瑞宏自动化设备有限公司 | Electrical control type EGR valve performance testing table |
| CN104457517A (en) * | 2014-11-28 | 2015-03-25 | 无锡隆盛科技股份有限公司 | Detection device for valve base of electric EGR valve |
| CN106050486A (en) * | 2016-08-01 | 2016-10-26 | 无锡隆盛科技股份有限公司 | EGR valve opening force detection device |
| KR20180080031A (en) * | 2017-01-03 | 2018-07-11 | 창원대학교 산학협력단 | EGR Valve Inspection Equipment |
| CN110823472A (en) * | 2019-10-31 | 2020-02-21 | 江门龙浩智能装备有限公司 | Leak detection device for EGR core body |
| CN214787748U (en) * | 2021-03-17 | 2021-11-19 | 太仓源凯汽车配件有限公司 | EGR valve on-line measuring platform |
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