CN112595462B - Flywheel casing leakage test device - Google Patents
Flywheel casing leakage test device Download PDFInfo
- Publication number
- CN112595462B CN112595462B CN202110133170.7A CN202110133170A CN112595462B CN 112595462 B CN112595462 B CN 112595462B CN 202110133170 A CN202110133170 A CN 202110133170A CN 112595462 B CN112595462 B CN 112595462B
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- bottom plate
- sealing
- cylinder
- flywheel
- sealing bottom
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- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 230000002441 reversible effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a flywheel casing leakage testing device, which comprises a water tank, wherein a bottom plate is arranged in the water tank, a lifting mechanism is arranged on the bottom plate, a sealing bottom plate is fixed on the lifting mechanism, a cylinder is fixed in the middle of the bottom of the sealing bottom plate, and the end part of a piston rod of the sealing bottom plate is connected with a pull ring; the sealing bottom plate is provided with a cylinder rubber pad which is matched with the cylinder joint surface of the flywheel shell, the sealing bottom plate and the cylinder rubber pad are provided with corresponding air pressure monitoring holes, air inlet/outlet holes and piston rod penetrating holes, the rear side and the right side of the sealing bottom plate are respectively provided with a positioning block, the positions, opposite to the square oil filling holes and the triangular oil filling holes, of the sealing bottom plate are respectively provided with a third cylinder, and the end parts of the piston rods of the third cylinders are fixedly provided with sealing plates and rubber pads; the bottom plates positioned at the front part and below the left side and the right side of the sealing bottom plate are respectively provided with a lever cylinder, and the upper ends of the lever cylinders are provided with tongue depressors; a sealing plate is arranged on the flywheel shell crankshaft hole, and a hook matched with the pull ring is arranged below the sealing plate. The invention saves time and labor, can realize rapid leak test and detection and improves the efficiency.
Description
Technical Field
The invention relates to an air tightness detection device, in particular to a flywheel casing leakage test device.
Background
The flywheel housing is an important connecting part for connecting the engine cylinder body and the gearbox, is also one of core parts of the engine, and directly determines whether the engine can normally run or not if leakage exists in products.
The flywheel housing produced at present mainly depends on the quality of castings to ensure no leakage, but because the quality of the castings is unstable, 1-15 per mill of flywheel housing has oil leakage after the engine is installed and tested, because the flywheel housing is installed at the middle part of the engine, the whole engine needs to be removed after oil leakage, a new flywheel housing needs to be replaced, labor and time are wasted, the quality of the engine is influenced due to the secondary disassembly and assembly of the engine, the claim amount of each leakage part is up to 2000-17000 yuan, and a host factory requires 100% of flywheel housing to have no leakage condition.
The application number 2019202377528 of the flywheel casing leakage testing device provides a flywheel casing leakage testing device, but the flywheel casing needs to be sealed at a plurality of positions, each position needs to be plugged manually, flywheel casing parts are large, at least two persons are required to operate the station, the leakage testing efficiency is low, only about 40 leakage testing devices can be tested every day, and the production requirement cannot be met.
Disclosure of Invention
In order to solve the problems and improve the production efficiency, the invention provides a flywheel casing leakage testing device which can meet the air tightness detection effect, has universality and is high in efficiency.
Therefore, the invention has the technical scheme that the flywheel casing leakage testing device is provided with a gear chamber and a flywheel chamber, and is characterized in that:
Comprises a water tank, a bottom plate is arranged in the water tank, a lifting mechanism is arranged on the bottom plate, a sealing bottom plate is fixed on the lifting mechanism,
A second cylinder is fixed in the middle of the bottom of the sealing bottom plate, a piston rod of the second cylinder penetrates out of the sealing bottom plate, a pull ring is fixed at the end part of the second cylinder, a sealing ring is arranged between the piston rod and the sealing bottom plate, and the piston rod is overlapped with the axial lead of the crankshaft hole of the flywheel shell;
The surface of the sealing bottom plate is provided with a cylinder rubber pad which is matched with the cylinder joint surface of the flywheel shell, and the sealing bottom plate and the cylinder rubber pad are provided with corresponding air pressure monitoring holes, air inlet/outlet holes and piston rod penetrating holes of the second cylinder; the rear side and the right side of the sealing bottom plate are respectively provided with a positioning block for carrying out preset positioning and horizontal limiting on one side of the flywheel housing far away from the square oil injection hole and the triangular oil injection and the mounting surface corresponding to the right side;
The sealing bottom plate is provided with a third cylinder at the position opposite to the square oil filling hole and the triangular oil filling hole, the end part of a piston rod of the third cylinder is sequentially fixed with a sealing plate and a rubber pad which are matched with the corresponding hole cavity, and the rubber pad is fixed through a fixing plate and is used for sealing the square oil filling hole and the triangular oil filling hole and assisting in limiting in the horizontal direction;
The bottom plates positioned at the front part and the lower parts of the left side and the right side of the sealing bottom plate are respectively provided with a lever cylinder, the upper ends of the lever cylinders are provided with reversible tongue depressor plates which are used for positioning the corresponding plane positions on the flywheel shell in the vertical direction, and the sealing bottom plate is provided with corresponding avoidance openings;
a crankshaft hole sealing plate which is matched with the crankshaft hole is arranged on one side, close to the flywheel chamber, of the flywheel shell, a handle is arranged on the surface of the crankshaft hole sealing plate, a rubber pad is arranged at the bottom of the crankshaft hole sealing plate and is fixed through a fixing plate, a hook penetrates out of the rubber pad and the rubber pad fixing plate to extend downwards, and when the flywheel shell is used, the hook and the pull ring are matched with each other to realize sealing of the crankshaft hole through shrinkage of a cylinder.
Preferably, the lifting mechanism is a plurality of first cylinders, the top of the piston rod of each first cylinder is fixed with the sealing bottom plate, lifting is realized through the plurality of first cylinders, and the lifting mechanism is convenient to install, simple and quick to operate and high in reliability.
Preferably, the device is controlled by a PLC control system, a PLC control box is arranged on the outer wall of the water tank, and each operation is automatically finished by one-key control.
Preferably, the lowest part of the water tank is provided with a drain valve, so that the water tank is convenient to clean and replace clean water.
Preferably, the outer wall of the water tank is provided with a pressure gauge, and the pressure gauge is connected with the air pressure monitoring hole through a pipeline, so that the water tank is convenient to observe.
The beneficial effects are that: the flywheel shell leakage testing device can fully automatically complete the actions of sealing, inflating, leakage testing, exhausting, loosening and the like of each opening hole of the flywheel shell, the production efficiency is improved by more than 3 times, the leakage testing cost is reduced to 1.5 yuan per piece from the previous 5 yuan per piece, the annual leakage testing cost can be reduced by more than 10 ten thousand yuan, and the labor intensity of workers is greatly reduced.
Drawings
Fig. 1 is a perspective view of a flywheel housing.
Fig. 2 is a perspective view of fig. 1 flipped 180 degrees forward.
Fig. 3 is a perspective view of the present invention.
Fig. 4 is an exploded installation view of the present invention.
Fig. 5 is a state of use diagram of the present invention.
The figure shows: 1.a water tank; 2. a bottom plate; 3.a first cylinder; 4. sealing the bottom plate; 41. avoiding the notch; 5. a second cylinder; 6. a pull ring; 7. a cylinder rubber pad; 71. an air pressure monitoring hole; 72. inlet/outlet holes; 73. the piston rod passes through the hole; 8. a positioning block; 9. a third cylinder; 91. a mounting base; 10. a sealing plate; 11. a rubber pad; 12. a fixing plate; 13. a lever cylinder; 131. tongue depressor; 132. a mounting base; 14. a crankshaft hole sealing plate; 141. a handle; 142. a hook; 15. a PLC control box; 16. a pressure gauge; 17. flywheel casing; 171. a gear chamber; 172. a flywheel chamber; 173. a crankshaft hole; 174. square oil filling hole; 175. triangular oil filling holes; 176. and a cylinder body joint surface.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying positive importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
It should be noted that: the flywheel housing 17 according to the present invention (as shown in fig. 1 and 2) comprises a housing, a gear chamber 171 and a flywheel chamber 172 provided on the back of the gear chamber are provided in the housing, a partition plate is provided between the gear chamber and the flywheel chamber and is communicated with each other through a crank hole 173, a square oil filler hole 174 and a triangular oil filler hole 175 are also provided on the surface of the flywheel housing and are communicated with the gear chamber, and the air tightness detection of the flywheel housing 17 is essentially that the gear chamber 171 and the part communicated with the gear chamber are air-tightly detected, and the upper edge of the gear chamber is a cylinder body joint surface 176.
The invention is as shown in fig. 3 to 5:
the flywheel casing leakage test device comprises a water tank 1, a bottom plate 2 is arranged in the water tank, four corners with square upper outline and a middle part of the bottom plate are respectively fixed with first cylinders 3 arranged in the vertical direction through mounting seats, the tops of piston rods of the five first cylinders are fixed with a sealing bottom plate 4,
A second cylinder 5 arranged in the vertical direction is fixed in the middle of the bottom of the sealing bottom plate, the position of the second cylinder is not interfered with the first cylinder in the middle, a piston rod of the second cylinder penetrates out of the sealing bottom plate 4, a pull ring 6 is fixed at the end part of the second cylinder, a sealing ring is arranged between the piston rod and the sealing bottom plate, and the piston rod is overlapped with the axial lead of the crankshaft hole of the flywheel shell;
The surface of the sealing bottom plate 4 is provided with a cylinder rubber pad 7 which is matched with the cylinder joint surface of the flywheel housing, the sealing bottom plate and the cylinder rubber pad are provided with a corresponding air pressure monitoring hole 71, an air inlet/outlet hole 72 and a piston rod penetrating hole 73, the rear side and the right side of the sealing bottom plate are respectively provided with a positioning block 8, wherein two positioning blocks and one positioning block are arranged on the rear side and the right side of the sealing bottom plate, and the positioning blocks are used for carrying out pre-positioning and horizontal (transverse and longitudinal) limiting on one side, far away from the square oil filling hole and the triangular oil filling side, of the flywheel housing and a mounting surface corresponding to the right side;
A third cylinder 9 arranged in the horizontal direction is arranged at the position, opposite to the square oil filling hole and the triangular oil filling hole, on the sealing bottom plate 4 through a mounting seat 91, a sealing plate 10 and a rubber gasket 11 which are matched with the corresponding hole cavity are sequentially fixed at the end part of a piston rod of the third cylinder, the rubber gasket is fixed through a fixing plate 12, and the third cylinder is used for assisting in limiting in the horizontal direction while sealing the square oil filling hole and the triangular oil filling hole;
The bottom plate 2 positioned at the front part and below the left side and the right side of the sealing bottom plate is respectively provided with a lever cylinder 13, the lever cylinders are installed through an installation seat 132, the upper ends of the lever cylinders are provided with reversible tongue depressor 131 which are used for positioning the corresponding plane on the flywheel housing in the vertical direction, and the sealing bottom plate is provided with a corresponding avoidance gap 41;
The crank hole of flywheel shell is close to flywheel room one side and has been laid and has been had crank hole closing plate 14 that suits with the crank hole, and crank hole closing plate surface is equipped with handle 141, and the bottom of crank hole closing plate is equipped with the rubber pad and passes through the fixed plate and fix, and a couple 142 wears out downwardly extending from rubber pad and rubber pad fixed plate and sets up, and during the use, couple 142 cooperates through cylinder shrink with pull ring 6 and realizes the seal to the crank hole.
The device is controlled by a PLC control system, a PLC control box 15 is arranged on the outer wall of the water tank, and each operation is automatically finished by one-key control.
The lowest place of the water tank is provided with a drain valve (conventional technology, which is not expressed in the figure), so that the water tank is convenient to clean and replace clean water.
The outer wall of the water tank is provided with a pressure gauge 16, and the pressure gauge is connected with the air pressure monitoring hole through a pipeline.
The working principle of the invention and the control flow of the PLC control system are as follows:
Before use, water is injected into the water tank, when in use, the five first air cylinders on the bottom plate are in a lifting state, and the sealing bottom plate is positioned on the liquid level of the water tank; lifting a gear chamber of a flywheel housing to be detected downwards above a rubber pad of a cylinder body, enabling a positioning surface of the flywheel housing, which is far away from a square oil injection hole and is used for oil injection, to be contacted with a positioning block at the rear side to finish horizontal transverse positioning, enabling a positioning surface at the right side of the flywheel housing to be contacted with a positioning block at the right side to finish horizontal longitudinal positioning, and enabling the flywheel housing to fall down; then the hook of the crankshaft hole sealing plate is hooked on the pull ring of the piston rod of the second cylinder, a start key is pressed down (controlled by a PLC program, a lever cylinder and the second cylinder are started to clamp and seal the flywheel shell to be detected in the vertical direction, a third cylinder is pushed to be tightly sealed, compressed air is injected into a gear chamber, a pressure gauge monitors the compressed air in the gear chamber, when the pressure reaches 0.2Mpa, air injection is stopped, the first cylinder falls down simultaneously, a sealing bottom plate and the flywheel shell gear chamber fall into water for 30 seconds, whether bubbles emerge from the gear chamber and the pressure is reduced or not is observed, and accordingly whether leakage exists or not is judged, the first cylinder is lifted up to the liquid level of a water tank simultaneously, the air is exhausted, the third cylinder is released, the lever cylinder and the second cylinder is released, and the crankshaft hole sealing plate is taken down, and the flywheel shell which is detected is hung down is placed separately.
Other parts of the present invention not described in detail are all of the prior art, and are not described in detail herein.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (4)
1. The utility model provides a flywheel casing leak test device, the flywheel casing is the flywheel casing that has gear room and flywheel room, its characterized in that:
Comprises a water tank, a bottom plate is arranged in the water tank, a lifting mechanism is arranged on the bottom plate, a sealing bottom plate is fixed on the lifting mechanism,
A second cylinder is fixed in the middle of the bottom of the sealing bottom plate, a piston rod of the second cylinder penetrates out of the sealing bottom plate, a pull ring is fixed at the end part of the second cylinder, a sealing ring is arranged between the piston rod and the sealing bottom plate, and the piston rod is overlapped with the axial lead of the crankshaft hole of the flywheel shell;
The surface of the sealing bottom plate is provided with a cylinder rubber pad which is matched with the cylinder joint surface of the flywheel shell, and the sealing bottom plate and the cylinder rubber pad are provided with corresponding air pressure monitoring holes, air inlet/outlet holes and piston rod penetrating holes of the second cylinder; the rear side and the right side of the sealing bottom plate are respectively provided with a positioning block for carrying out preset positioning and horizontal limiting on one side of the flywheel housing far away from the square oil injection hole and the triangular oil injection and the mounting surface corresponding to the right side;
The sealing bottom plate is provided with a third cylinder at the position opposite to the square oil filling hole and the triangular oil filling hole, the end part of a piston rod of the third cylinder is sequentially fixed with a sealing plate and a rubber pad which are matched with the corresponding hole cavity, and the rubber pad is fixed through a fixing plate and is used for sealing the square oil filling hole and the triangular oil filling hole and assisting in limiting in the horizontal direction;
The bottom plates positioned at the front part and the lower parts of the left side and the right side of the sealing bottom plate are respectively provided with a lever cylinder, the upper ends of the lever cylinders are provided with reversible tongue depressor plates which are used for positioning the corresponding plane positions on the flywheel shell in the vertical direction, and the sealing bottom plate is provided with corresponding avoidance openings;
A crankshaft hole sealing plate which is matched with the crankshaft hole is arranged on one side, close to the flywheel chamber, of the flywheel shell, a handle is arranged on the surface of the crankshaft hole sealing plate, a rubber pad is arranged at the bottom of the crankshaft hole sealing plate and is fixed through a fixing plate, a hook penetrates out of the rubber pad and the rubber pad fixing plate to extend downwards, and when the flywheel shell is used, the hook and the pull ring are matched with each other to realize sealing of the crankshaft hole through shrinkage of a cylinder;
The leakage testing device is controlled by a PLC control system, and a PLC control box is arranged on the outer wall of the water tank.
2. The flywheel casing leak testing device of claim 1, wherein: the lifting mechanism is a plurality of first cylinders, and the top of a piston rod of each first cylinder is fixed with the sealing bottom plate.
3. The flywheel casing leak testing device of claim 1, wherein: the lowest position of the water tank is provided with a drain valve.
4. A flywheel casing leak testing device according to claim 1 or 2 or 3, wherein: the outer wall of the water tank is provided with a pressure gauge, and the pressure gauge is connected with the air pressure monitoring hole through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110133170.7A CN112595462B (en) | 2021-02-01 | 2021-02-01 | Flywheel casing leakage test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110133170.7A CN112595462B (en) | 2021-02-01 | 2021-02-01 | Flywheel casing leakage test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112595462A CN112595462A (en) | 2021-04-02 |
| CN112595462B true CN112595462B (en) | 2024-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110133170.7A Active CN112595462B (en) | 2021-02-01 | 2021-02-01 | Flywheel casing leakage test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112595462B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900434A (en) * | 2019-03-18 | 2019-06-18 | 杭州九龙机械制造有限公司 | Bell housing air tightness detection equipment |
| CN209533192U (en) * | 2019-03-04 | 2019-10-25 | 十堰众柴发动机部件制造有限公司 | A kind of positioning fixture for the processing of bell housing preamble |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130238213A1 (en) * | 2012-03-06 | 2013-09-12 | Caterpillar, Inc. | Flywheel diagnostic system and method |
| KR20190140324A (en) * | 2018-06-11 | 2019-12-19 | 주식회사 미래하이테크 | Watertightness test system of axle case for agricultural machinery |
| CN209542018U (en) * | 2019-02-26 | 2019-10-25 | 十堰众柴发动机部件制造有限公司 | A kind of bell housing leakage testing device |
| CN210863067U (en) * | 2019-08-03 | 2020-06-26 | 东台市杰顺机械制造有限公司 | Flywheel casing gas tightness check out test set |
-
2021
- 2021-02-01 CN CN202110133170.7A patent/CN112595462B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209533192U (en) * | 2019-03-04 | 2019-10-25 | 十堰众柴发动机部件制造有限公司 | A kind of positioning fixture for the processing of bell housing preamble |
| CN109900434A (en) * | 2019-03-18 | 2019-06-18 | 杭州九龙机械制造有限公司 | Bell housing air tightness detection equipment |
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| CN112595462A (en) | 2021-04-02 |
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