CN111044228A - Detection method for automobile oil filter - Google Patents
Detection method for automobile oil filter Download PDFInfo
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- CN111044228A CN111044228A CN201911185043.0A CN201911185043A CN111044228A CN 111044228 A CN111044228 A CN 111044228A CN 201911185043 A CN201911185043 A CN 201911185043A CN 111044228 A CN111044228 A CN 111044228A
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- oil filter
- oil
- filter
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- electromagnetic valve
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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
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- General Physics & Mathematics (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a detection method of an automobile oil filter, which comprises the following steps: A. a pressure sensor is arranged at a port of the oil filter; B. one port of the oil filter is covered by a sealing cover in a connecting way, and the center of the tail part of the other end of the oil filter is connected with an air duct; C. firstly, inflating the interior of the filter and then injecting engine oil into the interior of the filter; D. discharging the engine oil in the engine oil filter, and introducing high-temperature gas into the engine oil filter; E. carrying out integral compression resistance detection by adopting a press machine; F. the invention has reasonable design and simple structure, adopts air pressure detection and oil pressure detection to detect the air tightness of the oil filter, and ensures the air tightness of the oil filter through multi-aspect detection.
Description
Technical Field
The invention relates to the technical field of oil filters, in particular to a detection method of an automobile oil filter.
Background
The oil filter is also called as an oil grid. The cleaning agent is used for removing impurities such as dust, metal particles, carbon precipitates, soot particles and the like in the engine oil and protecting an engine.
The oil filter has a full flow type and a split flow type. The full-flow filter is connected in series between the oil pump and the main oil gallery, so that all lubricating oil entering the main oil gallery can be filtered. The shunting cleaner is connected with the main oil duct in parallel and only filters part of lubricating oil sent by the oil pump.
In the working process of the engine, metal abrasive dust, carbon deposit oxidized at high temperature, colloidal precipitate, water and the like are continuously mixed into the lubricating oil. The function of the oil filter is to filter out these mechanical impurities and colloids, keep the lubricating oil clean and prolong the service life of the lubricating oil. The oil filter should have the performance of strong filtering capacity, small flow resistance, long service life and the like. In general, several filters with different filtering capacities are installed in the lubricating system, such as a collecting filter, a coarse filter and a fine filter, which are respectively connected in parallel or in series in the main oil gallery. (a full-flow filter connected in series with the main oil duct, a bypass filter connected in parallel with the engine, and a filter for filtering the whole lubricating oil when the engine works). The first coarse filter is connected in series in the main oil duct and is of a full-flow type; the fine filter is connected in parallel in the main oil duct and is of a split flow type. The modern car engine is generally provided with only a strainer and a full-flow type oil filter. The coarse filter filters impurities with the particle size of more than 0.05mm in the engine oil, and the fine filter filters fine impurities with the particle size of more than 0.001 mm.
The defective products produced in the production process of the automobile oil filter are inevitable, so that the sealing performance of the automobile oil filter is poor, and the sealing performance of each oil filter needs to be detected before leaving a factory.
Disclosure of Invention
The invention aims to provide a detection method of an automobile oil filter, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a detection method of an automobile oil filter comprises the following steps:
A. a pressure sensor is arranged at a port of the oil filter;
B. one port of the oil filter is covered by a sealing cover in a connecting way, and the center of the tail part of the other end of the oil filter is connected with an air duct;
C. firstly, inflating the interior of the filter and then injecting engine oil into the interior of the filter;
D. discharging the engine oil in the engine oil filter, and introducing high-temperature gas into the engine oil filter;
E. carrying out integral compression resistance detection by adopting a press machine;
F. and finishing detection and packaging the oil filter.
Preferably, a wireless pressure sensor is installed inside the upper port of the oil filter according to the step A, and the wireless pressure sensor is fixed by using a traceless double-sided adhesive tape.
Preferably, said step B is carried out according to
a. One end port of the oil filter is sleeved with a sealed sleeve cover at one end port of the oil filter, a sealing ring is arranged on the inner side of the sealed sleeve cover, and an electromagnetic valve is arranged inside a central connecting conduit of the sealed sleeve cover;
b. the air guide pipe at the tail end port of the oil filter is directly inserted into a through hole in the center of one end of the oil filter, the outer side wall of the plug of the air guide pipe is provided with a raised anti-slip hoop, and the air guide pipe is internally provided with an electromagnetic valve;
c. a rubber fixing piece is adopted to fix the sealing sleeve cover at one end of the oil filter and the air duct.
Preferably, said step C is carried out
a. Firstly, inflating the interior of the oil filter, closing an electromagnetic valve inside a connecting conduit when inflating, closing an electromagnetic valve inside a central conduit of a sealing sleeve cover when the air pressure inside the oil filter reaches 3MPa, keeping the oil filter under a closed condition for 10-15 min, and checking whether the value of a pressure sensor changes;
b. opening electromagnetic valves in connecting pipes at two ends of the oil filter, and discharging gas in the oil filter;
c. the electromagnetic valve inside the guide pipe connected with one end of the oil filter is closed, the electromagnetic valve inside the guide pipe connected with the center of the sealing cover is opened, engine oil is injected into the oil filter through the guide pipe connected with the sealing cover, the electromagnetic valve is closed after the engine oil in the oil filter is filled, the oil filter swings for 10-15 min in situ, and whether the engine oil seeps out from the seam of the oil filter is detected.
Preferably, said step D
a. Vertically placing the oil filter, opening an electromagnetic valve inside a connecting guide pipe at the bottom of the oil filter, and naturally discharging the oil in the oil filter;
b. then high-pressure gas is introduced into a port above the oil filter, and part of the engine oil in the oil filter is quickly discharged;
c. and introducing high-temperature gas from the bottom port of the oil filter to ensure that the temperature inside the oil filter is high, volatilizing part of the engine oil remained inside the oil filter completely, and continuously introducing the high-temperature gas for 5-8 min.
Preferably, said step E
a. Installing hard rubber pads at two ends of the oil filter;
b. and (3) applying pressure to the oil filter by adopting a press, enabling the oil filter to bear the pressure of 10MPa for 1-2 min, and observing whether the appearance of the oil filter changes.
Preferably, according to the step F, the oil filter is wrapped by the soft sponge paper layer and then sleeved by the rice flour plastic bag, and finally, the oil filter is installed by the paper box.
Compared with the prior art, the invention has the beneficial effects that:
(1) the side wall of the outer part of the plug of the air duct is provided with a raised anti-slip hoop, so that air leakage at the joint of the oil filter and the air duct is avoided;
(2) the invention has reasonable design and simple structure, adopts air pressure detection and oil pressure detection to detect the air tightness of the oil filter, and ensures the air tightness of the oil filter through multi-aspect detection.
Drawings
FIG. 1 is a flow chart of a detection method of an automobile oil filter of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a detection method of an automobile oil filter comprises the following steps:
A. a pressure sensor is arranged at a port of the oil filter;
B. one port of the oil filter is covered by a sealing cover in a connecting way, and the center of the tail part of the other end of the oil filter is connected with an air duct;
C. firstly, inflating the interior of the filter and then injecting engine oil into the interior of the filter;
D. discharging the engine oil in the engine oil filter, and introducing high-temperature gas into the engine oil filter;
E. carrying out integral compression resistance detection by adopting a press machine;
F. and finishing detection and packaging the oil filter.
A, a wireless pressure sensor is arranged in the upper port of the oil filter, and traceless double-sided adhesive tape is adopted for fixing.
One port of oil cleaner adopts the one end port of sealed cover at oil cleaner, the inboard of sealed cover is equipped with the sealing washer, the inside of the central authorities connecting conduit of sealed cover is equipped with the solenoid valve, the air duct disect insertion of oil cleaner afterbody port is in the through-hole of oil cleaner one end central authorities, the outside lateral wall of plug of air duct is equipped with bellied antiskid hoop, avoid oil cleaner and air duct junction to leak gas, the inside of air duct is equipped with the solenoid valve and fixes adopting the rubber mounting between the sealed cover of oil cleaner one end and the air duct.
Firstly, the interior of the oil filter is charged with air, when the air is charged, the electromagnetic valve in the connecting conduit is closed, when the air pressure in the oil filter reaches 3MPa, the electromagnetic valve in the central conduit of the sealing sleeve cover is closed, the oil filter is kept for 10-15 min under the closed condition, whether the value of the pressure sensor changes or not is checked, the electromagnetic valves in the connecting pipes at the two ends of the oil filter are opened, the gas in the oil filter is discharged, the electromagnetic valve in the conduit connected with one end of the oil filter is closed, the electromagnetic valve in the conduit connected with the central part of the sealing sleeve cover is opened, the oil is injected into the oil filter through the conduit connected with the sealing sleeve cover, and after the oil in the oil filter is filled, closing the electromagnetic valve, swinging the oil filter in situ for 10-15 min, and detecting whether the oil seeps out from the seam of the oil filter.
The oil filter is vertically placed, an electromagnetic valve inside a connecting guide pipe at the bottom of the oil filter is opened, oil inside the oil filter is naturally discharged, high-pressure gas is introduced into a port above the oil filter, part of the oil inside the oil filter is quickly discharged, high-temperature gas is introduced into a port at the bottom of the oil filter, the temperature of the oil inside the oil filter is high, part of the oil remaining inside the oil filter is completely volatilized, and the high-temperature gas is continuously introduced for 5-8 min.
Installing hard rubber pads at two ends of the oil filter, applying pressure to the oil filter by adopting a press, enabling the oil filter to bear the pressure of 10MPa for 1-2 min, observing whether the appearance of the oil filter changes, wrapping the oil filter by adopting a soft sponge paper layer, sleeving by adopting a rice flour plastic bag, and finally installing by adopting a paper box.
In conclusion, the invention has reasonable design and simple structure, adopts air pressure detection and oil pressure detection to detect the air tightness of the oil filter, and ensures the air tightness of the oil filter through multi-aspect detection.
The invention has the beneficial effects that:
(1) the side wall of the outer part of the plug of the air duct is provided with a raised anti-slip hoop, so that air leakage at the joint of the oil filter and the air duct is avoided;
(2) the invention has reasonable design and simple structure, adopts air pressure detection and oil pressure detection to detect the air tightness of the oil filter, and ensures the air tightness of the oil filter through multi-aspect detection.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The detection method of the automobile oil filter is characterized by comprising the following steps: the method comprises the following steps:
A. a pressure sensor is arranged at a port of the oil filter;
B. one port of the oil filter is covered by a sealing cover in a connecting way, and the center of the tail part of the other end of the oil filter is connected with an air duct;
C. firstly, inflating the interior of the filter and then injecting engine oil into the interior of the filter;
D. discharging the engine oil in the engine oil filter, and introducing high-temperature gas into the engine oil filter;
E. carrying out integral compression resistance detection by adopting a press machine;
F. and finishing detection and packaging the oil filter.
2. The method for detecting the automobile oil filter of the claim 1, wherein: and B, installing a wireless pressure sensor in the upper port of the oil filter according to the step A, and fixing by adopting traceless double-sided adhesive tape.
3. The method for detecting the automobile oil filter of the claim 1, wherein: according to step B
a. One end port of the oil filter is sleeved with a sealed sleeve cover at one end port of the oil filter, a sealing ring is arranged on the inner side of the sealed sleeve cover, and an electromagnetic valve is arranged inside a central connecting conduit of the sealed sleeve cover;
b. the air guide pipe at the tail end port of the oil filter is directly inserted into a through hole in the center of one end of the oil filter, the outer side wall of the plug of the air guide pipe is provided with a raised anti-slip hoop, and the air guide pipe is internally provided with an electromagnetic valve;
c. a rubber fixing piece is adopted to fix the sealing sleeve cover at one end of the oil filter and the air duct.
4. The method for detecting the automobile oil filter of the claim 1, wherein: according to step C
a. Firstly, inflating the interior of the oil filter, closing an electromagnetic valve inside a connecting conduit when inflating, closing an electromagnetic valve inside a central conduit of a sealing sleeve cover when the air pressure inside the oil filter reaches 3MPa, keeping the oil filter under a closed condition for 10-15 min, and checking whether the value of a pressure sensor changes;
b. opening electromagnetic valves in connecting pipes at two ends of the oil filter, and discharging gas in the oil filter;
c. the electromagnetic valve inside the guide pipe connected with one end of the oil filter is closed, the electromagnetic valve inside the guide pipe connected with the center of the sealing cover is opened, engine oil is injected into the oil filter through the guide pipe connected with the sealing cover, the electromagnetic valve is closed after the engine oil in the oil filter is filled, the oil filter swings for 10-15 min in situ, and whether the engine oil seeps out from the seam of the oil filter is detected.
5. The method for detecting the automobile oil filter of the claim 1, wherein: said according to step D
a. Vertically placing the oil filter, opening an electromagnetic valve inside a connecting guide pipe at the bottom of the oil filter, and naturally discharging the oil in the oil filter;
b. then high-pressure gas is introduced into a port above the oil filter, and part of the engine oil in the oil filter is quickly discharged;
c. and introducing high-temperature gas from the bottom port of the oil filter to ensure that the temperature inside the oil filter is high, volatilizing part of the engine oil remained inside the oil filter completely, and continuously introducing the high-temperature gas for 5-8 min.
6. The method for detecting the automobile oil filter of the claim 1, wherein: said according to step E
a. Installing hard rubber pads at two ends of the oil filter;
b. and (3) applying pressure to the oil filter by adopting a press, enabling the oil filter to bear the pressure of 10MPa for 1-2 min, and observing whether the appearance of the oil filter changes.
7. The method for detecting the automobile oil filter of the claim 1, wherein: and F, wrapping the oil filter by using a soft sponge paper layer, sleeving by using a rice flour plastic bag, and finally installing by using a paper box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911185043.0A CN111044228A (en) | 2019-11-28 | 2019-11-28 | Detection method for automobile oil filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911185043.0A CN111044228A (en) | 2019-11-28 | 2019-11-28 | Detection method for automobile oil filter |
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| Publication Number | Publication Date |
|---|---|
| CN111044228A true CN111044228A (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911185043.0A Withdrawn CN111044228A (en) | 2019-11-28 | 2019-11-28 | Detection method for automobile oil filter |
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| Country | Link |
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| CN (1) | CN111044228A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114894492A (en) * | 2022-03-30 | 2022-08-12 | 中国第一汽车股份有限公司 | Finished automobile cleanability testing method and evaluation method |
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2019
- 2019-11-28 CN CN201911185043.0A patent/CN111044228A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114894492A (en) * | 2022-03-30 | 2022-08-12 | 中国第一汽车股份有限公司 | Finished automobile cleanability testing method and evaluation method |
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Application publication date: 20200421 |