CN205120362U - Electronic EGR valve endurance test device - Google Patents
Electronic EGR valve endurance test device Download PDFInfo
- Publication number
- CN205120362U CN205120362U CN201520904719.8U CN201520904719U CN205120362U CN 205120362 U CN205120362 U CN 205120362U CN 201520904719 U CN201520904719 U CN 201520904719U CN 205120362 U CN205120362 U CN 205120362U
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- CN
- China
- Prior art keywords
- egr valve
- hole
- working plate
- camshaft
- tappet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model discloses an electronic EGR valve endurance test device, including the work platen, work is provided with the through -hole about the work that the goes through platen on the platen, corresponds the positioning mechanism who is provided with fixed EGR valve on the work platen of through -hole, and the cross -under has the tappet of top and EGR valve valve block looks apical grafting in the through -hole, work platen below is provided with control tappet up -and -down motion's in the through -hole actuating mechanism. The utility model discloses simple structure, low cost can realize opening and closing of EGR valve fast, applicablely carry out endurance test in any specification model's EGR valve, and be very convenient.
Description
Technical field
The present invention relates to electric EGR valve testing equipment technical field, particularly a kind of device for testing electric EGR valve long duration test.
Background technology
In engine exhaust-gas recirculating system (abbreviation egr system), ECU calculates the aperture of current EGR systems demand according to signals such as engine speed, oil mass, water temperatures, then the aperture size of EGR valve is controlled according to result of calculation, thus adjustment exhaust gas flow, return cylinder after waste gas is mixed by a certain percentage with fresh air and carry out recycle, temperature and burning rate is burnt, further thus reduce NO to reduce cylinder combustion
xdischarge capacity.
In egr system, important control element is EGR valve, and it plays regulable control recycle in systems in which and to fly up the effect of flow, and therefore the endurance quality of EGR valve directly has influence on the use of the recirculating system that flies up.The long duration test of EGR valve is installed on testing table or instruction carriage by equipment to be detected, the reciprocating action being carried out the open and close of millions of times by RCU Systematical control EGR valve is realized, and this kind of test method exists the shortcomings such as experimentation cost is high, motion frequency is low, the test period is long, troublesome poeration.
Summary of the invention
It is simple, with low cost that the technical issues that need to address of the present invention are to provide a kind of structure, can realize the test unit that EGR valve opens and closes fast.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows.
Electric EGR valve durability test apparatus, comprise working plate, described working plate is provided with the upper and lower through hole of through working plate, the working plate of corresponding through hole is provided with the detent mechanism of fixing EGR valve, in through hole, cross-under has the tappet of top and EGR valve valve block phase apical grafting; The driving mechanism controlling tappet and pump in through hole is provided with below described working plate.
Above-mentioned electric EGR valve durability test apparatus, the actuating unit that described driving mechanism comprises camshaft, is arranged on the end cams of camshaft and rotates for drive cam shaft, described camshaft is set in parallel in below working plate by the support be fixedly installed on working plate lower surface, support is provided through the axis hole of camshaft, between camshaft and axis hole, passes through bearing assemble; The bottom of described tappet and the outer peripheral face phase apical grafting of cam.
Above-mentioned electric EGR valve durability test apparatus, described actuating unit comprises motor and is fixedly installed on the engaged wheel on camshaft, the output shaft of motor is fixedly installed driving wheel, is connected between driving wheel with engaged wheel by belt.
Above-mentioned electric EGR valve durability test apparatus, described engaged wheel is arranged on the middle part of camshaft, and the two ends of camshaft are fixedly installed a cam respectively, the working plate above corresponding cam offers two through holes through tappet.
Above-mentioned electric EGR valve durability test apparatus, is provided with the orienting sleeve for carrying out leading for tappet in described through hole.
Above-mentioned electric EGR valve durability test apparatus, the shaft section of described orienting sleeve is T-type structure.
Above-mentioned electric EGR valve durability test apparatus, the through hole on described working plate is the T-shaped shoulder hole of equipped T-shaped orienting sleeve.
Owing to have employed above technical scheme, the invention technological progress is as follows.
Structure of the present invention is simple, with low cost, can realize the open and close of EGR valve fast, and the EGR valve being applicable to any specifications and models carries out long duration test, very convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is EGR valve schematic diagram in the on state;
Fig. 3 be EGR valve in off position under schematic diagram;
Fig. 4 is the structural representation of cam of the present invention.
Wherein: 1. motor, 2. belt, 3. camshaft, 4. cam, 5. bearing, 6. support, 7. working plate, 8. through hole, 9.EGR valve, 10. orienting sleeve, 11. tappets, 12. tappet upper ends, 13. valve blocks, 14. tappet lower ends, 15. cams down to point, 16. cam top dead centres, 17.EGR valve body.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.
A kind of electric EGR valve durability test apparatus, its structure as shown in Figure 1.Comprise working plate, working plate is provided with the upper and lower through hole of through working plate 8, the working plate of corresponding through hole is provided with the detent mechanism of fixing EGR valve, in through hole 8, cross-under has tappet 11, top and the EGR valve valve block 13 phase apical grafting of tappet 11; Being provided with driving mechanism below working plate, pumping in through hole 8 for controlling tappet 11.
Driving mechanism comprises camshaft 3, cam 4 and actuating unit, and cam 4 is arranged on the end of camshaft, and actuating unit is used for drive cam shaft and rotates.Wherein, camshaft 3 is set in parallel in below working plate by two supports 6 be fixedly installed on working plate lower surface, support is provided through the axis hole of camshaft 3, is assembled between camshaft and axis hole by bearing 5; The bottom of tappet 11 and the outer peripheral face phase apical grafting of cam.For ensureing the contact area of tappet bottom and cam, the present invention also arranges top board in tappet bottom, and top board and tappet can be structure as a whole.
As shown in Figure 4, adopt the design of dimorphism line, namely cam 4 rotates a circle the structure of cam, and tappet 11 moves up and down twice, drives EGR valve to open and close twice, improves test efficiency, saved the time.
The engaged wheel that actuating unit comprises motor 1 and is fixedly installed on camshaft, the output shaft of motor is fixedly installed driving wheel, is connected between driving wheel with engaged wheel by belt 2, and the power transmission produced by motor is to camshaft.In the present embodiment, engaged wheel is arranged on the middle part of camshaft, and the two ends of camshaft are fixedly installed a cam respectively, the working plate above corresponding cam offers two through holes through tappet, to carry out opening and closing test to two EGR valve simultaneously.Certainly, also can multiple cam be set on camshaft, multiple through hole is set on working plate accordingly, come to test multiple EGR valve simultaneously.
For ensureing tappet smooth and easy motion in through hole, and lead to the motion of tappet, the present invention is also provided with orienting sleeve 10 in through hole.For ensureing the reliable installation of orienting sleeve, through hole is set to T-shaped shoulder hole, and orienting sleeve is also set to T-shaped shaft section structure, and T-shaped shoulder hole is equipped with mutually with T-shaped orienting sleeve.
Detent mechanism, for EGR valve to be detected is firmly fixed on working plate, prevents in opening and closing process, and EGR valve is shifted.In the present embodiment, by arranging some bolts hole be equipped with mutually with the mounting hole of EGR valve valve seat around through hole on working plate, and adopt bolt and bolt hole to be equipped with, EGR valve to be detected is securely fixed on working plate.
When the present invention uses, first by detent mechanism, EGR valve to be detected is securely fixed on working plate, and makes the top of tappet and EGR valve valve block 13 phase apical grafting.Then, to motor 1 energising, motor is rotated, the belt 2 that is rotated through of motor 1 drives camshaft 3 to rotate, further band moving cam 4 rotates, and when the lower end 14 of tappet touches the top dead centre 16 of cam, valve block 13 and valve body 17 are thrown off, EGR valve 9 is opened, as shown in Figure 2; When the lower end 14 of tappet touches the lower dead center 15 of cam, valve block 13 contacts with valve body 17, and EGR valve 9 is closed, as shown in Figure 3.So, the open and close of EGR valve can be realized by the operation of motor.
Claims (7)
1. electric EGR valve durability test apparatus, comprise working plate (7), it is characterized in that: described working plate is provided with the upper and lower through hole of through working plate (8), the working plate of corresponding through hole is provided with the detent mechanism of fixing EGR valve, through hole (8) interior cross-under has the tappet (11) of top and EGR valve valve block (13) phase apical grafting; The driving mechanism controlling tappet (11) and pump in through hole (8) is provided with below described working plate.
2. electric EGR valve durability test apparatus according to claim 1, it is characterized in that: the actuating unit that described driving mechanism comprises camshaft (3), is arranged on the end cams (4) of camshaft and rotates for drive cam shaft, described camshaft (3) is set in parallel in below working plate by the support (6) be fixedly installed on working plate lower surface, support is provided through the axis hole of camshaft (3), by bearing (5) assembling between camshaft and axis hole; The bottom of described tappet (11) and the outer peripheral face phase apical grafting of cam.
3. electric EGR valve durability test apparatus according to claim 2, it is characterized in that: the engaged wheel that described actuating unit comprises motor (1) and is fixedly installed on camshaft, the output shaft of motor is fixedly installed driving wheel, is connected by belt (2) between driving wheel with engaged wheel.
4. electric EGR valve durability test apparatus according to claim 3, it is characterized in that: described engaged wheel is arranged on the middle part of camshaft, the two ends of camshaft are fixedly installed a cam respectively, the working plate above corresponding cam offer two through holes through tappet.
5. the electric EGR valve durability test apparatus according to any one of Claims 1-4, is characterized in that: be provided with the orienting sleeve (10) for carrying out leading for tappet in described through hole.
6. electric EGR valve durability test apparatus according to claim 5, is characterized in that: the shaft section of described orienting sleeve is T-type structure.
7. electric EGR valve durability test apparatus according to claim 6, is characterized in that: the through hole on described working plate is the T-shaped shoulder hole of equipped T-shaped orienting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520904719.8U CN205120362U (en) | 2015-11-16 | 2015-11-16 | Electronic EGR valve endurance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520904719.8U CN205120362U (en) | 2015-11-16 | 2015-11-16 | Electronic EGR valve endurance test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205120362U true CN205120362U (en) | 2016-03-30 |
Family
ID=55575958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520904719.8U Withdrawn - After Issue CN205120362U (en) | 2015-11-16 | 2015-11-16 | Electronic EGR valve endurance test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205120362U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203319A (en) * | 2015-11-16 | 2015-12-30 | 无锡隆盛科技股份有限公司 | Electric EGR valve endurance test device |
| CN108145411A (en) * | 2017-12-29 | 2018-06-12 | 博格华纳排放***（宁波）有限公司 | EGR valve assembling line and its assembly method |
| CN110261097A (en) * | 2019-08-08 | 2019-09-20 | 杭州电子科技大学 | A kind of steam turbine large hydraulic valve performance endurance testing device |
-
2015
- 2015-11-16 CN CN201520904719.8U patent/CN205120362U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203319A (en) * | 2015-11-16 | 2015-12-30 | 无锡隆盛科技股份有限公司 | Electric EGR valve endurance test device |
| CN105203319B (en) * | 2015-11-16 | 2018-01-05 | 无锡隆盛科技股份有限公司 | Electric EGR valve durability test apparatus |
| CN108145411A (en) * | 2017-12-29 | 2018-06-12 | 博格华纳排放***（宁波）有限公司 | EGR valve assembling line and its assembly method |
| CN108145411B (en) * | 2017-12-29 | 2024-04-05 | 博格华纳排放***（宁波）有限公司 | EGR valve assembly production line and assembly method thereof |
| CN110261097A (en) * | 2019-08-08 | 2019-09-20 | 杭州电子科技大学 | A kind of steam turbine large hydraulic valve performance endurance testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160330 Effective date of abandoning: 20180105 |