CN101173875A - Engine cylinder oil duct sealing inspection method and inspection device - Google Patents
Engine cylinder oil duct sealing inspection method and inspection device Download PDFInfo
- Publication number
- CN101173875A CN101173875A CNA2006100974324A CN200610097432A CN101173875A CN 101173875 A CN101173875 A CN 101173875A CN A2006100974324 A CNA2006100974324 A CN A2006100974324A CN 200610097432 A CN200610097432 A CN 200610097432A CN 101173875 A CN101173875 A CN 101173875A
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- Prior art keywords
- hole
- mandrel
- oil duct
- piston ring
- ring
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- 238000007789 sealing Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000007689 inspection Methods 0.000 title claims abstract description 16
- 239000010727 cylinder oil Substances 0.000 title 1
- 125000006850 spacer group Chemical group 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 38
- 239000012530 fluid Substances 0.000 claims description 14
- 230000000630 rising effect Effects 0.000 claims description 5
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
A method and a device for detecting the sealing of an oil duct of an engine cylinder body belong to the technical field of engine detection. The device comprises an expansion core sealing shaft and a connecting nozzle, wherein a core shaft with an inner hole is arranged in the expansion core shaft, a group of elastic expansion rings are arranged on the periphery of the core shaft, and two ends of each expansion ring are tightly pressed by a spacer bush and a check ring; the inspection method includes that firstly, a prefabricated expansion core shaft in the device is respectively sent into a main shaft hole and a camshaft hole of a cylinder body, then high-pressure oil or water or gas is introduced into an inner hole of the expansion core shaft, an expansion ring expands outwards to seal an oil hole in the hole, other outlets of an oil duct are blocked, then the high-pressure oil or the water or the gas is introduced into an inner cavity of the oil duct, the oil duct leakage phenomenon is inspected, and the sealing performance is judged. The invention has convenient operation and reliable inspection, can obviously improve the detection efficiency and the detection effect and ensure the product performance.
Description
Technical field
The present invention relates to a kind of method of inspection that is used for oil channel sealing of engine cylinder, also relate to the verifying attachment that is used for this method.
Background technology
The leak check of engine cylinder intracoelomic cavity water channel, oil duct feeds water under high pressure, oil or gas to inner chamber then and checks its seepage phenomenon normally with water channel, the external outlet shutoff of oil duct.Because the logical outer vent of water channel is less and all in the cylinder body periphery, shutoff easily, so the water channel inspection of hermetic seal is realized easily.More and the oilhole of each oil site that oil duct is logical outer is all at cylinder interior spindle hole, camshaft hole inwall, and shutoff is difficulty especially.Many engines producer does not check cylinder-body oil duct, and leakage of oil could be found the oil duct fault when having only engine pedestal to detect, and scraps because of rebuilding to break, and loses bigger.Inspection is to insert respectively in spindle hole and the camshaft hole with shutoff hole wall oilhole with rubber bar to oil channel sealing of engine cylinder in some producer, operates very inconveniently, also causes erroneous judgement because rubber bar cuts edge to leak simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art part, and a kind of easy to operate, reliable oil channel sealing of engine cylinder method of inspection of check is provided, and is provided for the verifying attachment of this method simultaneously.
Technical scheme of the present invention is: earlier with the spindle hole of elastic component shutoff cylinder body and the oilhole in the camshaft hole, other outlet of the oil duct of shutoff simultaneously, feed high-pressure fluid medium to the oil duct inner chamber then and check its seepage phenomenon, improvements are the oilholes that adopt in rise core seal shaft shutoff main shaft axis hole and the camshaft hole, and the concrete steps of the method for inspection are as follows:
(1) make the rise core seal shaft of external diameter respectively less than spindle hole and camshaft hole, have on the core seal shaft that rises with the hole in the corresponding one group of piston ring of oil-hole location;
(2) the core seal shaft that will rise is sent into spindle hole and camshaft hole respectively, makes piston ring be in the position of oilhole in the hole;
(3) in the endoporus of the core seal shaft that rises, feed high-pressure fluid medium, force piston ring to rise outward the oilhole in spindle hole and the camshaft hole is blocked;
(4) other outlet with cylinder-body oil duct blocks with plug;
(5) feed high-pressure fluid medium in cylinder-body oil duct, the seepage phenomenon of check oil duct is judged its sealing property.
In the said method, used high-pressure fluid medium is hydraulic oil, water or gas; The rise pressure of fluid media (medium) of core seal shaft endoporus of feeding is higher than the pressure that feeds cylinder-body oil duct inner fluid medium.
The verifying attachment that is used for the above-mentioned method of inspection is provided with rise core seal shaft and the mouth that connects that is loaded on the one end, the core seal shaft inside of rising is provided with the mandrel of tape spool to endoporus, the mandrel periphery is provided with one group of elastic piston ring, between piston ring and the mandrel ring cavity is arranged, mandrel is provided with the through hole that is communicated with described cavity and mandrel endoporus, be provided with spacer between the adjacent piston ring, the mandrel two ends are provided with back-up ring, and described spacer, back-up ring link to each other with the piston ring sealing.
Be provided with spacer shell between described piston ring and the mandrel, spacer shell be provided with mandrel on the through hole that aligns of through hole; Described back-up ring and mandrel binding site have O-ring seal; Described piston ring is 2～6, is made by oil resistant rubber.
Adopt above technical scheme, owing to rise by core seal shaft external diameter, can at an easy rate the mandrel that rises be sent in the hole during check less than spindle hole and camshaft hole internal diameter, easy to operate.The piston ring that is contained on the mandrel that rises has 2～6, adapt with oil passage position in the hole, available oil resistant rubber is made, good springiness, and seal pressing between spacer, the back-up ring, after the mandrel endoporus that rises feeds high-pressure fluid medium, the effective spreading of piston ring, good to oilhole plugging effect in spindle hole and the camshaft hole, and elastic piston ring is sent in spindle hole and the camshaft hole and can not caused leakage by side cut.In to spindle hole and camshaft hole, after the reliable shutoff of oilhole, in cylinder-body oil duct, feed high-pressure fluid medium again, check its seepage phenomenon,,,, can not produce erroneous judgement so check is also reliable because the oilhole shutoff is reliable to judge its sealing property.In the check, the pressure medium that feeds the mandrel endoporus that rises is higher than pressure medium in the feeding oil duct, can guarantee the effective spreading of piston ring, is adjacent to hole wall; The piston ring inboard is provided with spacer shell, and between back-up ring and the mandrel O-ring seal is arranged, and then further improves the reliability of verifying attachment.
Description of drawings
Accompanying drawing is the used verifying attachment structural representation of the present invention.
Embodiment
Consult accompanying drawing, this verifying attachment be provided with rise by core seal shaft 2 and be loaded on the one end connect mouth 1, the core seal shaft inside of rising is provided with the mandrel 11 of tape spool to endoporus, mandrel endoporus one end blocks, and the mandrel periphery is provided with five piston rings of being made by oil resistant rubber 8, and the cavity of piston ring inboard is connected with the endoporus of mandrel, spacer 5 is arranged between the adjacent piston ring, there are back-up ring 4 and 9 in the outer face of two ends piston ring, and is compressed by nut 3, the junction sealing of spacer, back-up ring and piston ring.Be provided with spacer shell 6 between piston ring and the mandrel, spacer shell be provided with mandrel on the through hole that aligns of through hole, two ends back-up ring and mandrel binding site have O-ring seal 10.Piston ring 8 can make monoblock type, also can install sealing ring 7 at the shutoff position additional, and sealing ring contacts with the peripheral position of oilhole, can strengthen plugging effect.When the core seal shaft endoporus that rises did not pressurize, the piston ring external diameter was slightly less than the outside diameter of mandrel of rising, and after the pressurization, the piston ring external diameter is greater than the outside diameter of mandrel of rising.Rise by outside diameter of mandrel than cylinder body spindle hole and the little 0.1～0.2mm of camshaft hole internal diameter.
Use the check of this device to have the oil channel sealing of engine cylinder of five retaining spindle holes, concrete grammar is: (1) the core seal shaft that will rise is sent into respectively in the spindle hole and camshaft hole of cylinder body, makes piston ring be in the position of oilhole in the hole, and fixes with support; (2) in the mandrel endoporus of the core seal shaft that rises, feed P by connecing mouth
1The hydraulic oil of=1.0MPa forces piston ring to rise outward the oilhole in spindle hole and the camshaft hole is blocked; (3) other outlet with cylinder-body oil duct blocks with plug; (4) in cylinder-body oil duct, feed P
2=0.4MPa hydraulic oil by the seepage phenomenon of usual method check oil duct, is judged its sealing property.
Claims (7)
1. oil channel sealing of engine cylinder method of inspection, earlier with the spindle hole of elastic component shutoff cylinder body and the oilhole in the camshaft hole, other outlet of the oil duct of shutoff simultaneously, feed high-pressure fluid medium to the oil duct inner chamber then and check its seepage phenomenon, it is characterized in that adopting the oilhole that rises in core seal shaft shutoff spindle hole and the camshaft hole, the concrete steps of the method for inspection are as follows:
(1) make the rise core seal shaft of external diameter respectively less than spindle hole and camshaft hole, have on the core seal shaft that rises with the hole in the corresponding one group of piston ring of oil-hole location;
(2) the core seal shaft that will rise is sent into spindle hole and camshaft hole respectively, makes piston ring be in the position of oilhole in the hole;
(3) in the endoporus of the core seal shaft that rises, feed high-pressure fluid medium, force piston ring to rise outward the oilhole in spindle hole and the camshaft hole is blocked;
(4) other outlet with cylinder-body oil duct blocks with plug;
(5) feed high-pressure fluid medium in cylinder-body oil duct, the seepage phenomenon of check oil duct is judged its sealing property.
2. by the described oil channel sealing of engine cylinder method of inspection of claim 1, it is characterized in that used high-pressure fluid medium is hydraulic oil, water or gas.
3. by the described oil channel sealing of engine cylinder method of inspection of claim 1, it is characterized in that feeding the rise pressure of fluid media (medium) of core seal shaft endoporus and be higher than the pressure that feeds cylinder-body oil duct inner fluid medium.
4. verifying attachment that is used for the described method of inspection of claim 1, it is characterized in that this device is provided with rise core seal shaft and the mouth that connects that is loaded on the one end, the core seal shaft inside of rising is provided with the mandrel of tape spool to endoporus, the mandrel periphery is provided with one group of elastic piston ring, between piston ring and the mandrel ring cavity is arranged, mandrel is provided with the through hole that is communicated with described cavity and mandrel endoporus, is provided with spacer between the adjacent piston ring, the mandrel two ends are provided with back-up ring, and described spacer, back-up ring link to each other with the piston ring sealing.
5. by the described verifying attachment of claim 4, it is characterized in that being provided with spacer shell between described piston ring and the mandrel, spacer shell be provided with mandrel on the through hole that aligns of through hole.
6. by the described verifying attachment of claim 4, it is characterized in that described back-up ring and mandrel binding site have O-ring seal.
7. by claim 4 or 5 described verifying attachments, it is characterized in that described piston ring is 2～6, is made by oil resistant rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100974324A CN101173875A (en) | 2006-10-31 | 2006-10-31 | Engine cylinder oil duct sealing inspection method and inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100974324A CN101173875A (en) | 2006-10-31 | 2006-10-31 | Engine cylinder oil duct sealing inspection method and inspection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101173875A true CN101173875A (en) | 2008-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100974324A Pending CN101173875A (en) | 2006-10-31 | 2006-10-31 | Engine cylinder oil duct sealing inspection method and inspection device |
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| CN (1) | CN101173875A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175401A (en) * | 2011-02-25 | 2011-09-07 | 力帆实业(集团)股份有限公司 | Detecting device for air tightness test of oil box |
| CN103148998A (en) * | 2013-02-04 | 2013-06-12 | 北京理工大学 | Automotive rotary sealing ring testing device |
| CN106644285A (en) * | 2016-12-21 | 2017-05-10 | 上海天永智能装备股份有限公司 | Engine plugging sealing device having function of air pressure existence self-checking |
| CN107860521A (en) * | 2017-12-05 | 2018-03-30 | 广西玉柴机器股份有限公司 | The plugging device of engine cylinder cap oil duct leak test |
| CN109357815A (en) * | 2017-01-03 | 2019-02-19 | 东莞理工学院 | A kind of engine cylinder body ventilation water filling detection machine |
| CN110095229A (en) * | 2019-04-19 | 2019-08-06 | 东风汽车集团有限公司 | A kind of engine leak test aperture end face blocking mechanism |
| CN110441004A (en) * | 2019-07-19 | 2019-11-12 | 北京航空航天大学 | A kind of rotation axis seal leakage amount measuring device for electricity and its measurement method |
| CN110441003A (en) * | 2019-07-19 | 2019-11-12 | 北京航空航天大学 | A kind of adjustable rotation axis seal leakage amount measuring device for electricity of pressure and temp and method |
| CN110686831A (en) * | 2019-11-08 | 2020-01-14 | 江西腾勒动力有限公司 | Engine cylinder block oil duct leakage test shutoff frock |
| CN110940462A (en) * | 2019-10-23 | 2020-03-31 | 芜湖天航装备技术有限公司 | Sealing performance inspection method for constant-speed transmission device shell |
| CN113932997A (en) * | 2021-10-29 | 2022-01-14 | 徐州徐工液压件有限公司 | Static seal combined test device |
| CN114278734A (en) * | 2021-12-29 | 2022-04-05 | 清华大学 | Composite sealing device for magnetic conduction shaft |
-
2006
- 2006-10-31 CN CNA2006100974324A patent/CN101173875A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175401A (en) * | 2011-02-25 | 2011-09-07 | 力帆实业(集团)股份有限公司 | Detecting device for air tightness test of oil box |
| CN103148998A (en) * | 2013-02-04 | 2013-06-12 | 北京理工大学 | Automotive rotary sealing ring testing device |
| CN106644285A (en) * | 2016-12-21 | 2017-05-10 | 上海天永智能装备股份有限公司 | Engine plugging sealing device having function of air pressure existence self-checking |
| CN109357815A (en) * | 2017-01-03 | 2019-02-19 | 东莞理工学院 | A kind of engine cylinder body ventilation water filling detection machine |
| CN107860521A (en) * | 2017-12-05 | 2018-03-30 | 广西玉柴机器股份有限公司 | The plugging device of engine cylinder cap oil duct leak test |
| CN110095229B (en) * | 2019-04-19 | 2020-05-19 | 东风汽车集团有限公司 | Engine leakage test orifice end face plugging mechanism |
| CN110095229A (en) * | 2019-04-19 | 2019-08-06 | 东风汽车集团有限公司 | A kind of engine leak test aperture end face blocking mechanism |
| CN110441004A (en) * | 2019-07-19 | 2019-11-12 | 北京航空航天大学 | A kind of rotation axis seal leakage amount measuring device for electricity and its measurement method |
| CN110441003A (en) * | 2019-07-19 | 2019-11-12 | 北京航空航天大学 | A kind of adjustable rotation axis seal leakage amount measuring device for electricity of pressure and temp and method |
| CN110441004B (en) * | 2019-07-19 | 2020-08-11 | 北京航空航天大学 | Rotating shaft seal leakage quantity measuring device and measuring method thereof |
| CN110940462A (en) * | 2019-10-23 | 2020-03-31 | 芜湖天航装备技术有限公司 | Sealing performance inspection method for constant-speed transmission device shell |
| CN110686831A (en) * | 2019-11-08 | 2020-01-14 | 江西腾勒动力有限公司 | Engine cylinder block oil duct leakage test shutoff frock |
| CN113932997A (en) * | 2021-10-29 | 2022-01-14 | 徐州徐工液压件有限公司 | Static seal combined test device |
| CN114278734A (en) * | 2021-12-29 | 2022-04-05 | 清华大学 | Composite sealing device for magnetic conduction shaft |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080507 |