CN107560795B - Cylinder sealing property detection device - Google Patents
Cylinder sealing property detection device Download PDFInfo
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- CN107560795B CN107560795B CN201710606626.0A CN201710606626A CN107560795B CN 107560795 B CN107560795 B CN 107560795B CN 201710606626 A CN201710606626 A CN 201710606626A CN 107560795 B CN107560795 B CN 107560795B
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- sealing
- lower mandrel
- column
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Abstract
The invention discloses a kind of cylinder sealing property detection device, which includes upper mandrel, lower mandrel, pedestal, main body frame, cover plate assembly and sealing ring, and peripheral equipment is cylinder to be tested；Lower mandrel is fixedly connected with the ground by pedestal, and upper mandrel is fixed together with lower mandrel, and for cylinder by upper mandrel guiding rear enclosure on lower mandrel, end face seal is realized by the step surface of step end face and lower mandrel in cylinder lower end；Main body frame is fixedly connected with the ground, cover plate assembly is flexibly connected with main body frame, cover plate assembly realizes sealing with the upper-end contact of cylinder and by sealing ring simultaneously, cover plate assembly applies the sealing that cylinder internal and external environment is realized along the normal pressure of cylinder axial direction to cylinder, passes through the test realized to cylinder sealing performance of pressurizeing after downward mandrel inner filling water.The present invention positions cylinder both ends by hollow split type mandrel, and the form of water filling sealing pressing is taken to realize the reliable quick detection to cylinder sealing performance.
Description
Technical field
The present invention is detected for the sealing performance of cylinder type hollow bearer, and in particular to a kind of sealing performance detection
Device belongs to sealing performance detection structure technical field.
Background technique
In engineering processing technique field, some cylinder barrel shaped parts are by multistage tubular due to the limitation of process conditions
Structural bond forms, and the part formed after bonding needs to bear certain pressure in use, to the sealing performance of bonding site
There are strict requirements, since overall structure is larger after part bonding, the end area for capableing of sealing position is small, while not allowing
Part bears axial tension stress, causes the sealing performance test for such part very difficult, there has been no one kind to be directed at present
The device of large-size cylinder body sealing performance detection detects work to complete sealing performance.
Summary of the invention
In view of this, the present invention provides a kind of cylinder sealing property detection device, by hollow split type mandrel to cylinder
The positioning of body both ends takes the form of water filling sealing pressing to realize the reliable quick detection to cylinder sealing performance.
A kind of cylinder sealing property detection device, the device include upper mandrel, lower mandrel, pedestal, main body frame, cover board
Component and sealing ring, peripheral equipment are cylinder to be tested；
The upper mandrel is hollow cylinder, and one end is machined with the external screw thread connecting with lower mandrel, the excircle of the other end
The inner surface of face part and cylinder is slidably matched, and there are gaps with inner surface for outer circumference surface rest part；
The lower mandrel is one end open cylindrical empty cavity configuration closed at one end, has one on the outer circumference surface of lower mandrel
A right angle platform terrace processes multiple permeable holes on the outer circumference surface above step surface, has one end to position circumference below step surface
Face positions the lower section processing pressurization hole of periphery；
Described cylinder one end to be tested is bonded a ring-shaped work pieces, and the inside of the part has a step surface；
The lower mandrel is fixedly connected with the ground by pedestal, and upper mandrel is fixed together with lower mandrel, cylinder by
On lower mandrel, the positioning periphery of the inner peripheral surface of the ring-shaped work pieces of bonding and lower mandrel cooperates upper mandrel guiding rear enclosure,
Sealing ring is set between the interior step surface of ring-shaped work pieces and the right angle platform terrace of lower mandrel；The main body frame is fixed with ground
Connection, the cover plate assembly are flexibly connected with main body frame, and the upper-end contact with cylinder, contact surface pass through cover plate assembly simultaneously
The sealing ring being mounted in body end surface realizes sealing, and cover plate assembly applies the normal pressure realization cylinder along cylinder axial direction to cylinder
The sealing of internal external environment realizes the survey to cylinder sealing performance by pressurization hole to pressurizeing after lower mandrel inner filling water
Examination.
Further, the cover plate assembly includes cover board, column, rotation stop pin, tightens nut, knob, tightens bar, pressing plate
And screw rod；
The nut of tightening is fixedly connected on the cover board, and the screw flight section cooperates with nut thread is tightened, screw rod
Top be fixedly connected with knob, bar is tightened in connection on knob；The column is slidably matched with the cavity for tightening nut, column
Axial guide groove is processed on side, anti-loosing screw protrudes into guide groove after tightening nut, and the seam allowance for passing through guide groove limits
Column processed is from tightening in nut, and the open end of column side and the shaven head part of screw rod is are slidably matched, the column other side
It is fixedly connected with the pressing plate, rotation stop pin passes through the bare headed part of column and screw rod, and rotation stop pin limits column and the opposite of screw rod turns
It is dynamic, by the linear movement up and down for being converted into column of screw rod.
Further, for the safety of guarantee test, shield is installed on the main body frame, shield uses PC
Plastic plate is further added by one layer of chain link fence on the outside of PC plastic plate；PC plastic plate has excellent impact flexibility, light transmittance
It is visual strong up to height, easily operated observation, securely and reliably.
Further, the cover board in the cover plate assembly is flexibly connected by bearing with main body frame, cover board and body frame
It is also connected with hydraulic stem between frame, unlatching and closing of the cover board to space in shield are realized by hydraulic stem, by compressing spiral shell
Bolt realizes the locking to cover board.
The utility model has the advantages that
1, the present invention will boost to inner barrel after the sealing of cylinder both ends, and axial compressive force one end of cylinder acts on cover board
On component, the other end is acted at the step of lower mandrel setting sealing ring, and axial tension stress is released during leakage test
It puts, testpieces is solely subjected to circumferential and radial stress, is not subject to axial tension stress, ensure that drum surface to be tested will not be broken
It is bad, save experimentation cost.
2, cylinder is inserted in split type hollow core shaft by the present invention vertically, and hollow core shaft positions cylinder both ends respectively, on
Mandrel is using annular local positioning structure, and such structure stack shell steady positioning, light-weight, the water filling smooth and time is short, lower mandrel
Periphery by being bonded part to cylinder positions, and ensure that the accurate positioning of cylinder and reliable, is conducive to carry out product batch
Detection, while upper and lower mandrel is easy for removal and installation using being threadedly coupled.
3, cover plate assembly of the invention connects easy to open, screw-threaded coupling rapid and convenient using bearing and hydraulic stem.Stack shell
Dense block is next, and safety device and mandrel main body link to form an entirety, securely and reliably.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Wherein, 1- shield, 2- main body frame, 3- hold-down bolt, 4- cover plate assembly, 5- column, 6- rotation stop pin, 7- are twisted
Tight nut, 8- knob, 9- tighten bar, 10- pressing plate, the first sealing ring of 11-, 12- bearing, 13- hydraulic stem, the upper mandrel of 14-, 15-
Mandrel, 17- pedestal, 18- screw rod under second sealing ring, 16-.
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
As shown in Fig. 1, the present invention provides a kind of cylinder sealing property detection device, the device include upper mandrel 14,
Lower mandrel 16, pedestal 17, shield 1, main body frame 2, cover plate assembly 4, bearing 12, hydraulic stem 13, the first sealing ring 11 and
Two sealing rings 15, peripheral equipment are cylinder to be tested；
Upper mandrel 14 is hollow cylinder, and one end is machined with the external screw thread connecting with lower mandrel, the outer circumference surface of the other end
Part and the inner surface of cylinder are slidably matched, and there are gaps with inner surface for outer circumference surface rest part；
Lower mandrel 16 is one end open cylindrical empty cavity configuration closed at one end, has one on the outer circumference surface of lower mandrel
Right angle platform terrace processes multiple permeable holes on the outer circumference surface above step surface, has one end to position periphery below step surface,
Position the lower section processing pressurization hole of periphery；
Cover plate assembly 4 includes cover board, column 5, rotation stop pin 6, tightens nut 7, knob 8, tightens bar 9, pressing plate 10 and screw rod
18
It tightens nut 7 to be fixedly connected on the cover board, the thread segment of screw rod 18 is threadedly engaged with nut 7 is tightened, screw rod 18
Top is fixedly connected with knob 8, and bar 9 is tightened in connection on knob 8；Column 5 is slidably matched with the cavity for tightening nut 7, column 5
Axial guide groove is processed on side, anti-loosing screw protrudes into guide groove after tightening nut 7, passes through the seam allowance of guide groove
Limitation column 7 from tightening in nut 7, stand to be slidably matched by the open end of 5 side of column and the shaven head part of screw rod 18
The column other side is fixedly connected with pressing plate 10, and rotation stop pin 6 passes through the bare headed part of column 5 and screw rod 18, and rotation stop pin 6 limits column 5
With the relative rotation of screw rod 18, by the linear movement up and down for being converted into column 5 of screw rod 18.
Cylinder one end to be tested is bonded a ring-shaped work pieces, and the inside of the ring-shaped work pieces has a step surface；
Lower mandrel 16 is fixedly connected with the ground by pedestal 17, and upper mandrel 14 and lower mandrel 16 are by being threadedly engaged fixation
It links together, cylinder is by upper mandrel 14 guiding rear enclosure on lower mandrel 16, and the inner peripheral surface of the ring-shaped work pieces of bonding is under
The positioning periphery of mandrel cooperates, and the second sealing is arranged between the interior step surface of ring-shaped work pieces and the right angle platform terrace of lower mandrel
Circle 15；
Main body frame 2 is fixedly connected with the ground, and shield 1 is installed on main body frame 2, and shield 1 uses PC plastic plate,
One layer of chain link fence is further added by the outside of PC plastic plate；Cover board in cover plate assembly 4 is living by bearing 12 and main body frame 2
Dynamic connection, is also connected with hydraulic stem 13 between cover board and main body frame 2, realize cover board to empty in shield 1 by hydraulic stem 13
Between unlatching and closing, locking to cover board is realized by hold-down bolt 3.Pressing plate 10 in cover plate assembly 4 simultaneously with cylinder
Upper-end contact, pressing plate 10 realize sealing by the first sealing ring 11 being mounted in body end surface, and rotation knob 8 makes column
Apply the sealing that cylinder internal and external environment is realized along the normal pressure of cylinder axial direction to cylinder with dynamic pressure plate 10, through pressurization hole under
16 inside water-filling of mandrel, water are entered between cylinder inner surface and upper mandrel 14 and lower mandrel 16 by the permeable hole of lower mandrel 16
Gap in, pressurize after water is full of, realize test to cylinder sealing performance.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit protection model of the invention
It encloses.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this hair
Within bright protection scope.
Claims (4)
1. cylinder sealing property detection device, which is characterized in that the device include upper mandrel, lower mandrel, pedestal, main body frame,
Cover plate assembly and sealing ring, peripheral equipment are cylinder to be tested；
The upper mandrel is hollow cylinder, and one end is machined with the external screw thread connecting with lower mandrel, the excircle face of the other end
Divide and be slidably matched with the inner surface of cylinder, there are gaps with inner surface for outer circumference surface rest part；
The lower mandrel is one end open cylindrical empty cavity configuration closed at one end, has a right angle on the outer circumference surface of lower mandrel
Step surface processes multiple permeable holes on the outer circumference surface above step surface, has one end to position periphery, setting circle below step surface
The lower section processing pressurization hole of circumferential surface；
Described cylinder one end to be tested is bonded a ring-shaped work pieces, and the inside of the part has a step surface；
The lower mandrel is fixedly connected with the ground by pedestal, and upper mandrel is fixed together with lower mandrel, and cylinder is by upper core
Spindle guide is sleeved on backward on lower mandrel, and the positioning periphery of the inner peripheral surface of the ring-shaped work pieces of bonding and lower mandrel cooperates, annular
Sealing ring is set between the interior step surface of part and the right angle platform terrace of lower mandrel；The main body frame is fixedly connected with the ground,
The cover plate assembly is flexibly connected with main body frame, and cover plate assembly while the upper-end contact with cylinder, contact surface is by being mounted on
Sealing ring in body end surface realizes sealing, and cover plate assembly applies the normal pressure realization cylinder inner and outer ring along cylinder axial direction to cylinder
The sealing in border realizes the test to cylinder sealing performance by pressurization hole to pressurizeing after lower mandrel inner filling water.
2. detection device as described in claim 1, which is characterized in that the cover plate assembly include cover board, column, rotation stop pin,
It tightens nut, knob, tighten bar, pressing plate and screw rod；
The nut of tightening is fixedly connected on the cover board, and the screw flight section cooperates with nut thread is tightened, the top of screw rod
End is fixedly connected with knob, and bar is tightened in connection on knob；The column is slidably matched with the cavity for tightening nut, on the side of column
Axial guide groove is processed, anti-loosing screw protrudes into guide groove after tightening nut, and the seam allowance for passing through guide groove limits column
From tightening in nut, the open end of column side and the shaven head part of screw rod is are slidably matched, the column other side and pressing plate
It is fixedly connected, rotation stop pin passes through the bare headed part of column and screw rod, and rotation stop pin limits the relative rotation of column and screw rod, by screw rod
The linear movement up and down for being converted into column.
3. detection device as described in claim 1, which is characterized in that install shield on the main body frame, shield is adopted
With PC plastic plate, one layer of chain link fence is further added by the outside of PC plastic plate.
4. detection device as described in claim 1, which is characterized in that the cover board in the cover plate assembly passes through bearing and main body
Frame is flexibly connected, and hydraulic stem is also connected between cover board and main body frame, realizes cover board to empty in shield by hydraulic stem
Between unlatching and closing, locking to cover board is realized by hold-down bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710606626.0A CN107560795B (en) | 2017-07-24 | 2017-07-24 | Cylinder sealing property detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710606626.0A CN107560795B (en) | 2017-07-24 | 2017-07-24 | Cylinder sealing property detection device |
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| CN107560795A CN107560795A (en) | 2018-01-09 |
| CN107560795B true CN107560795B (en) | 2019-09-20 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111089710A (en) * | 2019-11-25 | 2020-05-01 | 北京北机机电工业有限责任公司 | Tubular part structural strength hydrostatic test device |
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| CN203083790U (en) * | 2012-12-11 | 2013-07-24 | 福建兵工装备有限公司 | Hydraulic pressure sealing detection device of cylindrical part |
| CN204922371U (en) * | 2015-08-25 | 2015-12-30 | 核工业理化工程研究院 | A sealing device for fiber composite material pipe hydraulic bursting test |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997037206A1 (en) * | 1996-04-02 | 1997-10-09 | Guy Berube | Weld testing assembly |
| CN202033254U (en) * | 2010-12-21 | 2011-11-09 | 廊坊广厦新源石化设备制造有限公司 | Shell pass type pressure testing device for floating head type heat exchanger |
| CN202974581U (en) * | 2012-12-28 | 2013-06-05 | 天津欧波精密仪器股份有限公司 | Airtightness rapid detection device for welded junction of stainless steel pipe |
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| CN107560795A (en) | 2018-01-09 |
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