CN112539880A - Engine oil duct sealing leakage test device and engine oil duct sealing leakage test method - Google Patents
Engine oil duct sealing leakage test device and engine oil duct sealing leakage test method Download PDFInfo
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- CN112539880A CN112539880A CN202011357579.9A CN202011357579A CN112539880A CN 112539880 A CN112539880 A CN 112539880A CN 202011357579 A CN202011357579 A CN 202011357579A CN 112539880 A CN112539880 A CN 112539880A
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- sliding ring
- ring
- sleeve
- engine oil
- camshaft
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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
- G01M3/025—Details with respect to the testing of engines or engine parts
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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
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
A simple, economical, reliable, safe and stable engine oil duct sealing leakage test device comprises a rotary cylinder, a rotary screw rod and a sleeve, wherein the rotary screw rod comprises at least one pair of adjacent left-handed thread area and right-handed thread area, the left-handed thread area is provided with a left-handed nut, the right-handed thread area is provided with a right-handed nut, the sleeve is provided with one or more plugging heads corresponding to inclined oil holes of a camshaft, each plugging head comprises a fixed ring fixedly arranged on the sleeve, a left sliding ring and a right sliding ring movably arranged on the sleeve, the left sliding ring is connected with the left-handed nut, the right sliding ring is connected with the right-handed nut, a first O-shaped ring is arranged between the left sliding ring and the fixed ring, a second O-shaped ring is arranged between the right sliding ring and the fixed ring, the first O-shaped ring and the second O-shaped ring expand or retract along the radial direction under the pushing of the left, the fixed ring is provided with a hole nozzle connected with the test channel, and the test channel is connected with the leakage tester through the measuring connector.
Description
Technical Field
The invention relates to an oil duct sealing testing device in the field of automobile engine cylinder body machining.
Background
Referring to the attached drawing 1, in the assembly process of the engine cylinder block, a body oil duct is tested for leakage, the body oil duct mainly comprises a main oil duct, camshaft oblique oil holes and bottom straight oil holes, a camshaft hole perpendicular to a group of camshaft oblique oil holes is formed in the body, and meanwhile, the through of the oil duct (whether the oblique oil holes are drilled or not and whether broken drilling exists in the holes or not) and the sealing of a rivet are detected, so that lubricating oil cannot leak in the operation process of the engine.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention aims to provide a simple, economical and reliable leakage detection device for an oil passage of a cylinder.
In order to achieve the above object, the present invention provides an engine oil passage sealing leakage test device, comprising a rotary cylinder, a rotary screw rod installed at the output end of the rotary cylinder, and a sleeve sleeved outside the rotary screw rod, wherein the rotary screw rod comprises at least one pair of adjacent left-handed thread area and right-handed thread area, the left-handed thread area is provided with a left-handed nut, the right-handed thread area is provided with a right-handed nut, the sleeve is provided with one or more plugging heads corresponding to the oblique oil hole of the camshaft, the plugging heads comprise a fixed ring fixedly arranged on the sleeve, a left sliding ring and a right sliding ring movably arranged on the sleeve, the left sliding ring is connected to the left-handed nut and positioned at one side of the fixed ring, the right sliding ring is connected to the right-handed nut and positioned at the other side of the fixed ring, the leakage tester is characterized in that a first O-shaped ring is arranged between the left sliding ring and the fixing ring, a second O-shaped ring is arranged between the right sliding ring and the fixing ring, the first O-shaped ring and the second O-shaped ring expand or retract along the radial direction under the pushing of the left sliding ring and the right sliding ring respectively, a testing channel is transversely arranged in the sleeve, a hole nozzle connected with the testing channel is arranged on the fixing ring, and the testing channel is connected with the leakage tester through a measuring joint.
Preferably, the left sliding ring and the right sliding ring are respectively provided with a sliding ring inclined surface, and when the left sliding ring and the right sliding ring move, the first O-shaped ring and the second O-shaped ring respectively move on the sliding ring inclined surfaces of the left sliding ring and the right sliding ring.
Preferably, the sleeve is provided with a transverse hole, the left sliding ring is connected with the left-handed nut through a pin, the right sliding ring is connected with the right-handed nut through a pin, and the pin penetrates through the transverse hole.
Preferably, the measuring adapter is arranged on the sleeve.
Preferably, a bearing is arranged between the rotating screw and the sleeve.
Preferably, sealing rings are respectively arranged between the left sliding ring and the sleeve and between the right sliding ring and the sleeve.
Preferably, the measuring joint is connected with an electromagnetic valve.
According to another aspect of the present invention, there is provided an engine oil passage seal leakage test method for the engine oil passage seal leakage test device as described above, including the steps of:
s1: inserting the whole engine oil duct sealing leakage testing device into the camshaft hole, so that the plugging heads correspond to the inclined oil holes one by one;
s2: the left sliding ring and the right sliding ring are driven to move oppositely through the rotary cylinder, and the first O-shaped ring and the second O-shaped ring expand in the radial direction respectively so as to plug the camshaft holes on two sides of each inclined oil hole;
s3: and a leakage tester is used for testing leakage of the main oil duct, the inclined oil hole of the camshaft and the straight oil hole on the bottom surface and testing sealing of the rivet.
Preferably, the method further comprises a step S4 for detecting whether the camshaft oblique oil hole is drilled or not and the drill is cut off: the electromagnetic valve switches the blowing mode, and a flow meter is arranged at the plugging position of the straight oil hole on the bottom surface to measure the flow of the inclined oil hole of the camshaft.
Preferably, the method further comprises a step S5 for detecting whether the main oil gallery is drilled or not and whether the main oil gallery is drilled or not is cut off: the electromagnetic valve switches a plugging mode, the main oil duct blows air, and a flow meter is arranged at the plugging position of the straight oil hole to measure the flow of the oblique oil hole of the camshaft.
By adopting the technical scheme, the device realizes leakage test of the main oil duct, the inclined oil hole and the bottom straight oil hole and sealing test of the rivet, simultaneously detects the through of the oil duct, and is simple, economical, reliable, small in occupied space of the structure, safe and stable.
Drawings
FIG. 1 is a schematic structural diagram of an engine block;
FIG. 2 is a perspective view of an engine oil gallery seal leak test apparatus according to the present invention;
FIG. 3 is an exploded view of an engine oil gallery seal leak test apparatus according to the present invention;
FIG. 4 is a first cross-sectional view of an engine oil gallery seal leak test apparatus according to the present invention;
FIG. 5 is a second cross-sectional view of the engine oil gallery seal leak test apparatus according to the present invention;
fig. 6 is a schematic diagram of the use state of the engine oil passage sealing leakage test device according to the invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Referring to fig. 2 to 5, fig. 2 is a perspective view of an engine oil passage sealing leakage test device according to the present invention; FIG. 3 is an exploded view of an engine oil gallery seal leak test apparatus according to the present invention; FIG. 4 is a first cross-sectional view of an engine oil gallery seal leak test apparatus according to the present invention; fig. 5 is a second cross-sectional view of the engine oil passage sealing leak test apparatus according to the present invention.
The utility model provides an engine oil duct seals leakage test device, includes revolving cylinder 1, installs at revolving screw 2, the cover of 1 output end of revolving cylinder and establish the sleeve pipe 3 in revolving screw 2 outside, is provided with bearing 18 between revolving screw 2 and the sleeve pipe 3. Two blocking heads corresponding to the inclined oil holes of the camshaft are arranged on the sleeve 3, and in addition, a measuring joint 15 is arranged on the sleeve 3.
The rotary screw 2 comprises two pairs of adjacent left-handed thread areas 4 and right-handed thread areas 5, a left-handed nut 6 is arranged on each left-handed thread area 4, a right-handed nut 7 is arranged on each right-handed thread area 5, the plugging head comprises a fixing ring 8 fixedly arranged on the sleeve 3, a left sliding ring 9 and a right sliding ring 10 movably arranged on the sleeve 3, and sealing rings 19 are respectively arranged between the left sliding ring 9 and the right sliding ring 10 and the sleeve 3.
The left sliding ring 9 is connected with the left-handed nut 6 and is positioned on one side of the fixed ring 8, the right sliding ring 10 is connected with the right-handed nut 7 and is positioned on the other side of the fixed ring 8, the sleeve 3 is provided with a transverse hole 16, the left sliding ring 9 is connected with the left-handed nut 6 through a pin 17, the right sliding ring 10 is connected with the right-handed nut 7 through a pin 17, and the pin 17 penetrates through the transverse hole 16.
A first O-shaped ring 11 is arranged between the left sliding ring 9 and the fixing ring 8, a second O-shaped ring 12 is arranged between the right sliding ring 10 and the fixing ring 8, sliding ring inclined planes 15 are arranged on the left sliding ring 9 and the right sliding ring 10 respectively, and when the left sliding ring 9 and the right sliding ring 10 move, the first O-shaped ring 11 and the second O-shaped ring 12 move on the sliding ring inclined planes 15 of the left sliding ring 9 and the right sliding ring 10 respectively. The first O-shaped ring 11 and the second O-shaped ring 12 expand or retract along the radial direction under the pushing of the left sliding ring 9 and the right sliding ring 10 respectively, a testing channel 13 is transversely arranged in the sleeve 3, a hole nozzle 14 connected to the testing channel 13 is arranged on the fixing ring 8, the testing channel 13 is connected to a leakage tester through a measuring joint 15, and the measuring joint 15 is connected with an electromagnetic valve. The device realizes leakage test of the main oil duct, the inclined oil hole and the bottom straight oil hole and sealing test of the rivet, simultaneously detects the through of the oil duct, and is simple, economical, reliable, small in occupied space of the structure, safe and stable.
Fig. 6 is a schematic diagram of the use state of the engine oil passage sealing leakage test device according to the invention. The invention discloses an engine oil passage sealing leakage test method, which is used for the engine oil passage sealing leakage test device and comprises the following steps:
s1: when the device is in the original position, the O-shaped ring is in a loose state, the diameter of the whole plugging head is smaller than that of the camshaft hole, and the whole engine oil duct sealing leakage testing device is inserted into the camshaft hole, so that the plugging heads correspond to the inclined oil holes one by one;
s2: the left sliding ring and the right sliding ring are driven to move oppositely through the rotary cylinder, the first O-shaped ring and the second O-shaped ring expand in the radial direction respectively so as to seal the camshaft holes on two sides of each inclined oil hole, and the hole mouths 14 are just aligned to the inclined oil holes of the camshaft at the moment;
s3: leakage testing and rivet pulling sealing tests are carried out on the main oil duct, the camshaft inclined oil hole and the bottom surface straight oil hole through a leakage tester;
s4: the electromagnetic valve switches the blowing mode, a flow meter is arranged at the plugging position of the straight oil hole at the bottom surface to measure the flow of the inclined oil hole of the camshaft, whether the inclined oil hole of the camshaft is drilled or not and whether the inclined oil hole of the camshaft is broken or not are detected,
s5: and the electromagnetic valve switches a plugging mode, the main oil duct blows air, a flow meter is arranged at the plugging position of the straight oil hole to measure the flow of the inclined oil hole of the camshaft, and whether the main oil duct is drilled or not and the main oil duct is broken is detected.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides an engine oil duct seals leakage test device which characterized in that: comprises a rotary cylinder (1), a rotary screw rod (2) arranged at the output end of the rotary cylinder (1) and a sleeve (3) sleeved outside the rotary screw rod (2), wherein the rotary screw rod (2) comprises at least one pair of adjacent left-handed thread area (4) and right-handed thread area (5), the left-handed thread area (4) is provided with a left-handed nut (6), the right-handed thread area (5) is provided with a right-handed nut (7), the sleeve (3) is provided with one or more blocking heads corresponding to the inclined oil hole of the camshaft, each blocking head comprises a fixing ring (8) fixedly arranged on the sleeve (3), a left sliding ring (9) and a right sliding ring (10) movably arranged on the sleeve (3), and the left sliding ring (9) is connected with the left-handed nut (6) and positioned on one side of the fixing ring (8), the leakage tester is characterized in that the right sliding ring (10) is connected to the right-handed nut (7) and located on the other side of the fixing ring (8), a first O-shaped ring (11) is arranged between the left sliding ring (9) and the fixing ring (8), a second O-shaped ring (12) is arranged between the right sliding ring (10) and the fixing ring (8), the first O-shaped ring (11) and the second O-shaped ring (12) are respectively pushed by the left sliding ring (9) and the right sliding ring (10) to expand or retract along the radial direction, a testing channel (13) is transversely arranged in the sleeve (3), a hole nozzle (14) connected to the testing channel (13) is arranged on the fixing ring (8), and the testing channel (13) is connected to the leakage tester through a measuring connector (15).
2. The engine oil gallery seal leakage test device according to claim 1, characterized in that: the left sliding ring (9) and the right sliding ring (10) are respectively provided with a sliding ring inclined surface (15), and when the left sliding ring (9) and the right sliding ring (10) move, the first O-shaped ring (11) and the second O-shaped ring (12) respectively move on the sliding ring inclined surfaces (15) of the left sliding ring (9) and the right sliding ring (10).
3. The engine oil gallery seal leakage test device according to claim 1, characterized in that: the sleeve (3) is provided with a transverse hole (16), the left sliding ring (9) is connected with the left-handed nut (6) through a pin (17), the right sliding ring (10) is connected with the right-handed nut (7) through a pin (17), and the pin (17) penetrates through the transverse hole (16).
4. The engine oil gallery seal leakage test device according to claim 1, characterized in that: the measuring joint (15) is arranged on the sleeve (3).
5. The engine oil gallery seal leakage test device according to claim 1, characterized in that: and a bearing (18) is arranged between the rotary screw rod (2) and the sleeve (3).
6. The engine oil gallery seal leakage test device according to claim 1, characterized in that: and sealing rings (19) are respectively arranged between the left sliding ring (9), the right sliding ring (10) and the sleeve (3).
7. The engine oil gallery seal leakage test device according to claim 1, characterized in that: the measuring joint (15) is connected with an electromagnetic valve.
8. An engine oil passage seal leakage test method for the engine oil passage seal leakage test device according to any one of claims 1 to 7, characterized by comprising the steps of:
s1: inserting the whole engine oil duct sealing leakage testing device into the camshaft hole, so that the plugging heads correspond to the inclined oil holes one by one;
s2: the left sliding ring and the right sliding ring are driven to move oppositely through the rotary cylinder, and the first O-shaped ring and the second O-shaped ring expand in the radial direction respectively so as to plug the camshaft holes on two sides of each inclined oil hole;
s3: and a leakage tester is used for testing leakage of the main oil duct, the inclined oil hole of the camshaft and the straight oil hole on the bottom surface and testing sealing of the rivet.
9. The engine oil gallery seal leakage testing method according to claim 8, characterized in that: the method also comprises a step S4 for detecting whether the oblique oil hole of the camshaft is drilled or not and whether the oblique oil hole of the camshaft is drilled or not is cut off: the electromagnetic valve switches the blowing mode, and a flow meter is arranged at the plugging position of the straight oil hole on the bottom surface to measure the flow of the inclined oil hole of the camshaft.
10. The engine oil gallery seal leakage testing method according to claim 8, characterized in that: further comprising a step S5 for detecting whether the main oil gallery is drilled on and off: the electromagnetic valve switches a plugging mode, the main oil duct blows air, and a flow meter is arranged at the plugging position of the straight oil hole to measure the flow of the oblique oil hole of the camshaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011357579.9A CN112539880A (en) | 2020-11-27 | 2020-11-27 | Engine oil duct sealing leakage test device and engine oil duct sealing leakage test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011357579.9A CN112539880A (en) | 2020-11-27 | 2020-11-27 | Engine oil duct sealing leakage test device and engine oil duct sealing leakage test method |
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|---|---|
| CN112539880A true CN112539880A (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011357579.9A Pending CN112539880A (en) | 2020-11-27 | 2020-11-27 | Engine oil duct sealing leakage test device and engine oil duct sealing leakage test method |
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| CN (1) | CN112539880A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088379A (en) * | 2022-01-20 | 2022-02-25 | 浙江辉旺机械科技股份有限公司 | Multi-station inclined hole machining leakage detection device |
| CN114593874A (en) * | 2022-02-25 | 2022-06-07 | 无锡黎曼机器人科技有限公司 | Automatic leakage test detection equipment and method for diesel engine cylinder body flow passage |
-
2020
- 2020-11-27 CN CN202011357579.9A patent/CN112539880A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088379A (en) * | 2022-01-20 | 2022-02-25 | 浙江辉旺机械科技股份有限公司 | Multi-station inclined hole machining leakage detection device |
| CN114593874A (en) * | 2022-02-25 | 2022-06-07 | 无锡黎曼机器人科技有限公司 | Automatic leakage test detection equipment and method for diesel engine cylinder body flow passage |
| CN114593874B (en) * | 2022-02-25 | 2024-01-09 | 无锡黎曼机器人科技有限公司 | Automatic leakage testing and detecting equipment and leakage testing method for flow channel of diesel engine cylinder body |
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