CN112595462A - Flywheel casing leakage testing device - Google Patents
Flywheel casing leakage testing device Download PDFInfo
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- CN112595462A CN112595462A CN202110133170.7A CN202110133170A CN112595462A CN 112595462 A CN112595462 A CN 112595462A CN 202110133170 A CN202110133170 A CN 202110133170A CN 112595462 A CN112595462 A CN 112595462A
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- 238000012360 testing method Methods 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000002347 injection Methods 0.000 claims abstract description 22
- 239000007924 injection Substances 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008602 contraction Effects 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
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- G01M3/04—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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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a flywheel housing 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, an air cylinder is fixed in the middle of the bottom of the sealing bottom plate, and the end part of a piston rod of the air cylinder is connected with a pull ring; a cylinder body rubber pad which is matched with the cylinder body joint surface of the flywheel shell is arranged on the sealing bottom plate, corresponding air pressure monitoring holes, air inlet/outlet holes and piston rod penetrating holes are arranged on the sealing bottom plate and the cylinder body rubber pad, positioning blocks are respectively arranged on the rear side and the right side of the sealing bottom plate, third air cylinders are respectively arranged on the positions, opposite to the square oil injection hole and the triangular oil injection hole, on the sealing bottom plate, and a sealing plate and a rubber pad are fixed at the end part of a piston rod of each air cylinder; a lever cylinder is respectively arranged on the bottom plate positioned at the front part and the lower parts of the left side and the right side of the sealing bottom plate, and a tongue depressor is arranged at the upper end of the lever cylinder; the crankshaft hole of the flywheel shell is provided with a sealing plate, and a hook matched with the pull ring is arranged below the sealing plate. The invention saves time and labor, can realize quick leak test 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 an engine cylinder body and a gearbox and is one of core parts of the engine, and whether the product leaks or not directly determines whether the engine can normally run or not.
The existing flywheel casing is mainly guaranteed not to leak by the quality of a casting, but because the internal quality of the casting is unstable, 1-15 thousandths of flywheel casing exists in the flywheel casing after the engine is installed and tested, because the flywheel casing is installed in the middle of the engine, the whole engine needs to be disassembled after oil leakage, a new flywheel casing needs to be replaced, labor and time are wasted, the quality of the engine is affected by secondary disassembly and assembly of the engine, the claim amount of each leaked part is as high as 17000 yuan, and a host factory requires that 100% of the flywheel casing cannot leak.
The application number is 2019202377528 "a flywheel casing leakage test device" provides a flywheel casing leakage test device, but the flywheel casing needs sealed position more, needs to block every position by hand, and the flywheel casing part is great, and this station needs two people to operate at least, and leakage test efficiency is lower, can only about 40 leakage tests every day, can not satisfy the production demand.
Disclosure of Invention
In order to solve the problems and improve the production efficiency, the invention provides the flywheel housing leakage testing device which can meet the air tightness detection effect and has universality and high efficiency.
Therefore, the technical scheme of the invention is that the flywheel casing leakage test device is characterized in that the flywheel casing is a flywheel casing with a gear chamber and a flywheel chamber, and the flywheel casing leakage test device comprises:
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 of the second cylinder, a sealing ring is arranged between the piston rod and the sealing bottom plate, and the piston rod is superposed with the axis of a crankshaft hole of the flywheel housing;
a cylinder body rubber pad which is adaptive to the cylinder body combination surface of the flywheel shell is arranged on the surface of the sealing bottom plate, and a corresponding air pressure monitoring hole, an air inlet/outlet hole and a piston rod through hole of the second cylinder are arranged on the sealing bottom plate and the cylinder body rubber pad; the rear side and the right side of the sealing bottom plate are respectively provided with a positioning block for pre-positioning and horizontally limiting the mounting surface of one side and the corresponding right side of the flywheel housing away from the square oil injection hole and the triangular oil injection;
the sealing bottom plate is provided with a third cylinder at the position opposite to the square oil injection hole and the triangular oil injection hole respectively, the end part of a piston rod of the sealing bottom plate 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 injection hole and the triangular oil injection hole and limiting the auxiliary 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 end of each lever cylinder is provided with a turnover tongue depressor which is used for positioning the corresponding plane on the flywheel shell in the vertical direction, and the sealing bottom plate is provided with a corresponding avoiding notch;
the crankshaft hole of flywheel housing is close to flywheel room one side and has laid the crankshaft hole closing plate that suits with the crankshaft hole, and crankshaft hole closing plate surface is equipped with the handle, and the bottom of crankshaft hole closing plate is equipped with the rubber pad and passes through the fixed plate fixed, and a couple is worn out downwardly extending setting from rubber pad and rubber pad fixed plate, and during the use, couple and pull ring cooperation realize sealed to the crankshaft hole through the cylinder shrink.
Preferably, the lifting mechanism is a plurality of first cylinders, the sealing bottom plate is fixed to the top of a piston rod of each first cylinder, lifting is achieved through the plurality of first cylinders, and the lifting mechanism is convenient to mount, simple and fast 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 various operations are automatically completed through one-key control.
Preferably, the lowest position of the water tank is provided with a drain valve, so that the water tank is convenient to clean and replace clean water.
Preferably, a pressure gauge is arranged on the outer wall of the water tank, and the pressure gauge is connected with the air pressure monitoring hole through a pipeline, so that observation is facilitated.
Has the advantages that: by adopting the flywheel housing leakage testing device, the actions of sealing, inflating, leakage testing, exhausting, loosening and the like of each open hole of the flywheel housing can be fully automatically completed, the production efficiency is improved by more than 3 times, the leakage testing cost is reduced to 1.5 yuan/piece from the previous 5 yuan/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 mounting view of the present invention.
Fig. 5 is a state diagram of the use of the present invention.
Shown in the figure: 1. a water tank; 2. a base plate; 3. a first cylinder; 4. sealing the bottom plate; 41. avoiding the gap; 5. a second cylinder; 6. a pull ring; 7. a cylinder body rubber pad; 71. an air pressure monitoring hole; 72. air inlet/outlet holes; 73. the piston rod penetrates through the hole; 8. positioning blocks; 9. a third cylinder; 91. a mounting seat; 10. a sealing plate; 11. a rubber pad; 12. a fixing plate; 13. a lever cylinder; 131. a tongue depressor; 132. a mounting seat; 14. a crankshaft hole sealing plate; 141. a handle; 142. hooking; 15. a PLC control box; 16. a pressure gauge; 17. a flywheel housing; 171. a gear chamber; 172. a flywheel chamber; 173. a crankshaft bore; 174. a square oil filling hole; 175. a triangular oil injection hole; 176. cylinder body faying face.
Detailed Description
The technical scheme of the invention is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, 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 a relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It should be noted that: the flywheel housing 17 of the present invention (as shown in fig. 1 and 2) comprises a housing, a gear chamber 171 and a flywheel chamber 172 disposed on the back of the gear chamber are disposed in the housing, a partition is disposed between the gear chamber and the flywheel chamber and is communicated with the flywheel chamber through a crank hole 173, a square oil hole 174 and a triangular oil hole 175 are further disposed on the surface of the flywheel housing, the gas tightness of the flywheel housing 17 is substantially detected by the gas tightness of the gear chamber 171 and the portion communicated with the gear chamber, and the upper edge of the gear chamber is a cylinder joint surface 176.
The invention is shown in fig. 3 to 5:
a flywheel casing leakage testing device comprises a water tank 1, a bottom plate 2 is arranged in the water tank, first air cylinders 3 which are vertically arranged are respectively fixed at four corners and the middle part of the square outline of the bottom plate through mounting seats, sealing bottom plates 4 are fixed at the tops of piston rods of the five first air cylinders,
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 does not interfere 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 piston rod, a sealing ring is arranged between the piston rod and the sealing bottom plate, and the piston rod is superposed with the axis line of a crankshaft hole of the flywheel housing;
the surface of the sealing bottom plate 4 is provided with a cylinder body rubber gasket 7 which is adaptive to the cylinder body joint surface of the flywheel shell, the sealing bottom plate and the cylinder body rubber gasket are provided with corresponding air pressure monitoring holes 71, air inlet/outlet holes 72 and piston rod through holes 73, the rear side and the right side of the sealing bottom plate are respectively provided with a positioning block 8, wherein two blocks are arranged on the rear side and one block is arranged on the right side, and the positioning blocks are used for pre-positioning and horizontally (transversely and longitudinally) limiting the mounting surface of the flywheel shell away from one side of the square oil injection hole and the triangular oil;
the position of the sealing bottom plate 4 opposite to the square oil injection hole and the triangular oil injection hole is respectively provided with a third cylinder 9 arranged in the horizontal direction through a mounting seat 91, the end part of a piston rod of the third cylinder is sequentially fixed with a sealing plate 10 and a rubber pad 11 which are matched with the corresponding hole cavity, the rubber pad is fixed through a fixing plate 12, and the third cylinder is used for assisting the limit in the horizontal direction while sealing the square oil injection hole and the triangular oil injection hole;
the bottom plates 2 positioned at the front part and the left and right sides of the sealing bottom plate are respectively provided with a lever cylinder 13 which is arranged through a mounting seat 132, the upper ends of the lever cylinders are provided with turnover tongue depressors 131 for positioning the corresponding planes on the flywheel shells in the vertical direction, and the sealing bottom plate is provided with a corresponding avoiding notch 41;
the crankshaft hole sealing plate 14 matched with the crankshaft hole is arranged on one side, close to the flywheel chamber, of the crankshaft hole of the flywheel shell, the handle 141 is arranged on the surface of the crankshaft hole sealing plate, the rubber pad is arranged at the bottom of the crankshaft hole sealing plate and fixed through the fixing plate, the hook 142 penetrates out of the rubber pad and the rubber pad fixing plate and extends downwards, and when the flywheel shell is used, the hook 142 is matched with the pull ring 6 to achieve sealing of the crankshaft hole through contraction of the air.
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 various operations are automatically completed through one-key control.
The lowest position of the water tank is provided with a drain valve (conventional technology, not shown in the figure), so that the water tank is convenient to clean and replace clean water.
And a pressure gauge 16 is arranged on the outer wall of the water tank, and the pressure gauge is connected with the air pressure monitoring hole through a pipeline.
The working principle and the control flow of the PLC control system are as follows:
before use, water is injected into the water tank, five first cylinders on the bottom plate are in a rising state, and the sealing bottom plate is positioned on the liquid level of the water tank; hoisting a gear chamber of a flywheel housing to be detected downwards to a position above a rubber pad of the cylinder body, contacting a positioning surface on one side of the flywheel housing, far away from the square oil injection hole and the triangular oil injection, to a positioning block on the rear side to finish horizontal transverse positioning, contacting a positioning surface on the right side of the flywheel housing to a positioning block on the right side to finish horizontal longitudinal positioning, and dropping the flywheel housing; then hanging the hook of the crankshaft hole sealing plate on the pull ring of the piston rod of the second cylinder, pressing a start key (controlled by a PLC program, starting a lever cylinder and the second cylinder to clamp and seal the flywheel housing to be detected in the vertical direction, tightly pushing and sealing the third cylinder, injecting compressed air into the gear chamber, monitoring the compressed air in the gear chamber by a pressure gauge, stopping injecting air when the pressure reaches 0.2Mpa, simultaneously dropping the first cylinder, enabling a sealing bottom plate and the gear chamber of the flywheel housing to fall into water for 30 seconds, observing whether bubbles are emitted from the gear chamber and whether the pressure is reduced, further judging whether leakage exists, simultaneously lifting the first cylinder to the liquid level of a water tank, exhausting, loosening the third cylinder, loosening the lever cylinder and the second cylinder, taking down the crankshaft hole sealing plate, hanging the detected flywheel housing, and separately placing the flywheel housing which does not leak.
Other parts of the invention not described in detail are prior art and are not described in detail herein.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a flywheel casing leakage-testing 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 of the second cylinder, a sealing ring is arranged between the piston rod and the sealing bottom plate, and the piston rod is superposed with the axis of a crankshaft hole of the flywheel housing;
a cylinder body rubber pad which is adaptive to the cylinder body combination surface of the flywheel shell is arranged on the surface of the sealing bottom plate, and a corresponding air pressure monitoring hole, an air inlet/outlet hole and a piston rod through hole of the second cylinder are arranged on the sealing bottom plate and the cylinder body rubber pad; the rear side and the right side of the sealing bottom plate are respectively provided with a positioning block for pre-positioning and horizontally limiting the mounting surface of one side and the corresponding right side of the flywheel housing away from the square oil injection hole and the triangular oil injection;
the sealing bottom plate is provided with a third cylinder at the position opposite to the square oil injection hole and the triangular oil injection hole respectively, the end part of a piston rod of the sealing bottom plate 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 injection hole and the triangular oil injection hole and limiting the auxiliary 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 end of each lever cylinder is provided with a turnover tongue depressor which is used for positioning the corresponding plane on the flywheel shell in the vertical direction, and the sealing bottom plate is provided with a corresponding avoiding notch;
the crankshaft hole of flywheel housing is close to flywheel room one side and has laid the crankshaft hole closing plate that suits with the crankshaft hole, and crankshaft hole closing plate surface is equipped with the handle, and the bottom of crankshaft hole closing plate is equipped with the rubber pad and passes through the fixed plate fixed, and a couple is worn out downwardly extending setting from rubber pad and rubber pad fixed plate, and during the use, couple and pull ring cooperation realize sealed to the crankshaft hole through the cylinder shrink.
2. The flywheel housing leak test device according to claim 1, wherein: the lifting mechanism is a plurality of first air cylinders, and the sealing bottom plate is fixed to the top of a piston rod of each first air cylinder.
3. The flywheel housing leak test device according to claim 1 or 2, wherein: the leakage testing device is controlled by a PLC control system.
4. The flywheel housing leak test device according to claim 3, wherein: the lowest position of the water tank is provided with a drain valve.
5. The flywheel housing leak test device according to claim 1, 2 or 4, wherein: the pressure gauge is arranged on the outer wall of the water tank and 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 | Flywheel casing leakage test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110133170.7A CN112595462B (en) | 2021-02-01 | Flywheel casing leakage test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112595462A true CN112595462A (en) | 2021-04-02 |
| CN112595462B CN112595462B (en) | 2024-07-09 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130238213A1 (en) * | 2012-03-06 | 2013-09-12 | Caterpillar, Inc. | Flywheel diagnostic system and method |
| 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 |
| 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 |
| 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 |
| KR20190140324A (en) * | 2018-06-11 | 2019-12-19 | 주식회사 미래하이테크 | Watertightness test system of axle case for agricultural machinery |
| 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 |
Patent Citations (6)
| 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 |
| 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 |
| 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 |
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