CN107560795A - Cylinder sealing property detection device - Google Patents
Cylinder sealing property detection device Download PDFInfo
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- CN107560795A CN107560795A CN201710606626.0A CN201710606626A CN107560795A CN 107560795 A CN107560795 A CN 107560795A CN 201710606626 A CN201710606626 A CN 201710606626A CN 107560795 A CN107560795 A CN 107560795A
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- cylinder
- cover plate
- mandrel
- lower mandrel
- column
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- Examining Or Testing Airtightness (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of cylinder sealing property detection device, the device includes upper mandrel, lower mandrel, base, main body frame, cover plate assembly and sealing ring, and ancillary equipment is cylinder to be tested；Lower mandrel is fixedly connected with the ground by base, and upper mandrel is fixed together with lower mandrel, and cylinder is oriented to rear enclosure on lower mandrel by upper mandrel, and end face seal is realized in cylinder lower end by the step surface of step end face and lower mandrel；Main body frame is fixedly connected with the ground, cover plate assembly is flexibly connected with main body frame, cover plate assembly is simultaneously with the upper-end contact of cylinder and passing through sealing ring and realizing and seal, 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 test of the realization to cylinder sealing property of being pressurizeed after downward mandrel inner filling water.The present invention is positioned by hollow split type mandrel to cylinder both ends, takes the form realization of water filling sealing pressing to the reliable quick detection of cylinder sealing property.
Description
Technical field
The present invention detects for the sealing property of cylinder type hollow bearer, and in particular to a kind of sealing property detection
Device, belong to sealing property detection technical field of structures.
Background technology
In engineering processing technique field, some cylinder barrel shaped parts are by multistage tubular due to the limitation of process conditions
Structural bond is molded, and the part formed after bonding needs to bear certain pressure in use, to the sealing property of bonding site
There are strict requirements, overall structure is larger after being bonded due to part, and it is small to be capable of the end area of sealing position, while does not allow
Part bears axial tension stress, causes the sealing property for being directed to such part to test very difficult, there has been no one kind at present to be directed to
The device of large-size cylinder body sealing property detection detects work to complete sealing property.
The content of the invention
In view of this, the invention provides a kind of cylinder sealing property detection device, by hollow split type mandrel to cylinder
Body both ends position, and take the form realization of water filling sealing pressing to the reliable quick detection of cylinder sealing property.
A kind of cylinder sealing property detection device, the device include upper mandrel, lower mandrel, base, main body frame, cover plate
Component and sealing ring, ancillary equipment are cylinder to be tested；
The upper mandrel is hollow cylinder, and its one end is machined with the external screw thread being connected with lower mandrel, the excircle of the other end
The inner surface of face part and cylinder is slidably matched, and outer circumference surface remainder has gap with inner surface；
The lower mandrel is the cylindrical empty cavity configuration of one end open one end closing, has one on the outer circumference surface of lower mandrel
Individual right angle platform terrace, multiple permeable holes are processed on the outer circumference surface above step surface, have one end to position circumference below step surface
Face, position 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 base, and upper mandrel is fixed together with lower mandrel, cylinder by
Upper mandrel is oriented to rear enclosure on lower mandrel, and the positioning periphery of the inner peripheral surface of the ring-shaped work pieces of bonding and lower mandrel coordinates,
Sealing ring is set between the right angle platform terrace of the interior step surface of ring-shaped work pieces and 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
Sealing ring in body end surface realizes sealing, and cover plate assembly applies along the normal pressure of cylinder axial direction to cylinder realizes cylinder
The sealing of internal external environment, by hole of pressurizeing to being pressurizeed after lower mandrel inner filling water, realizes the survey to cylinder sealing property
Examination.
Further, the cover plate assembly includes cover plate, 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 is with tightening nut thread cooperation, screw rod
Top be fixedly connected with knob, on knob connection tighten bar；The column is slidably matched with tightening the cavity of nut, column
Axial guide groove is processed on side, anti-loosing screw is stretched into guide groove through after tightening nut, is limited by the seam of guide groove
Column processed is from tightening in nut, and the openend of column side and the shaven head part of screw rod is are slidably matched, column opposite side
It is fixedly connected with the pressing plate, rotation stop pin turns through the bare headed part of column and screw rod, rotation stop pin limitation column and the relative of screw rod
It is dynamic, by the rectilinear movement up and down for being converted into column of screw rod.
Further, for the security of guarantee test, protective cover is installed on the main body frame, protective cover uses PC
Plastic plate, layer of metal protection network is further added by 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 plate in the cover plate assembly is flexibly connected by bearing with main body frame, cover plate and body frame
Hydraulic stem is also connected between frame, unlatching and closing of the cover plate to space in protective cover are realized by hydraulic stem, by compressing spiral shell
Bolt realizes the locking to cover plate.
Beneficial effect：
1st, inner barrel is boosted after the present invention seals cylinder both ends, axial compressive force one end of cylinder acts on cover plate
On component, the other end acts on lower mandrel and set at the step of sealing ring, and axial tension stress is released during leakage test
Put, testpieces is solely subjected to ring 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.
2nd, cylinder is inserted in split type hollow core shaft by the present invention vertically, and hollow core shaft positions respectively to cylinder both ends, on
Mandrel uses annular local positioning structure, and such a structure stack shell steady positioning, in light weight, water filling is smooth and the time is short, lower mandrel
Positioned by the periphery that part is bonded to cylinder, ensure that the accurate positioning of cylinder and reliable, be advantageous to carry out product batch
Detection, while upper and lower mandrel is easy for removal and installation using being threadedly coupled.
3rd, cover plate assembly of the invention opens convenient, screw-threaded coupling rapid and convenient using bearing and hydraulic stem connection.Stack shell
Dense block is next, and safety device links to form an entirety with mandrel main body, securely and reliably.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Wherein, 1- protective covers, 2- main body frames, 3- hold-down bolts, 4- cover plate assemblies, 5- columns, 6- rotation stops pin, 7- are twisted
Tight nut, 8- knobs, 9- tighten bar, 10- pressing plates, the sealing rings of 11- first, 12- bearings, 13- hydraulic stems, the upper mandrels of 14-, 15-
Mandrel, 17- bases, 18- screw rods under second sealing ring, 16-.
Embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, the invention provides a kind of cylinder sealing property detection device, the device include upper mandrel 14,
Lower mandrel 16, base 17, protective cover 1, main body frame 2, cover plate assembly 4, bearing 12, hydraulic stem 13, the first sealing ring 11 and
Two sealing rings 15, ancillary equipment are cylinder to be tested；
Upper mandrel 14 is hollow cylinder, and its one end is machined with the external screw thread being connected with lower mandrel, the outer circumference surface of the other end
Part and the inner surface of cylinder are slidably matched, and outer circumference surface remainder has gap with inner surface；
Lower mandrel 16 is the cylindrical empty cavity configuration of one end open one end closing, has one on the outer circumference surface of lower mandrel
Right angle platform terrace, multiple permeable holes are processed on the outer circumference surface above step surface, have one end to position periphery below step surface,
Position the lower section processing pressurization hole of periphery；
Cover plate assembly 4 includes cover plate, column 5, rotation stop pin 6, tightens nut 7, knob 8, tightens bar 9, pressing plate 10 and screw rod
18
Tighten nut 7 to be fixedly connected on the cover board, the thread segment of screw rod 18 coordinates with tightening the screw thread of nut 7, screw rod 18
Top is fixedly connected with knob 8, is connected on knob 8 and tightens bar 9；Column 5 is slidably matched with tightening the cavity of nut 7, column 5
Axial guide groove is processed on side, anti-loosing screw is stretched into guide groove through after tightening nut 7, passes through the seam of guide groove
Limitation column 7 from tightening in nut 7, with the shaven head part of screw rod 18, to be slidably matched, stand by the openend of the side of column 5
Post opposite side is fixedly connected with pressing plate 10, and rotation stop pin 6 limits column 5 through the bare headed part of column 5 and screw rod 18, rotation stop pin 6
With the relative rotation of screw rod 18, by the rectilinear 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 base 17, and upper mandrel 14 is coordinated with lower mandrel 16 by screw thread to be fixed
Link together, cylinder is oriented to rear enclosure on lower mandrel 16 by upper mandrel 14, and the inner peripheral surface of the ring-shaped work pieces of bonding is with
The positioning periphery of mandrel coordinates, and the second sealing is set 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 protective cover 1 is installed on main body frame 2, and protective cover 1 uses PC plastic plate,
Layer of metal protection network is further added by the outside of PC plastic plate；Cover plate in cover plate assembly 4 is lived by bearing 12 and main body frame 2
Dynamic connection, is also connected with hydraulic stem 13 between cover plate and main body frame 2, realize cover plate to empty in protective cover 1 by hydraulic stem 13
Between unlatching and closing, the locking to cover plate 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 in body end surface, and turn knob 8 causes 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, by pressurizeing hole under
The inside water-filling of mandrel 16, 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, pressurizeed after water is full of, realize the test to cylinder sealing property.
In summary, presently preferred embodiments of the present invention is these are only, is not intended to limit the protection model of the present invention
Enclose.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in this hair
Within bright protection domain.
Claims (4)
1. cylinder sealing property detection device, it is characterised in that the device include upper mandrel, lower mandrel, base, main body frame,
Cover plate assembly and sealing ring, ancillary equipment are cylinder to be tested；
The upper mandrel is hollow cylinder, and its one end is machined with the external screw thread being connected with lower mandrel, the excircle face of the other end
The inner surface with cylinder is divided to be slidably matched, outer circumference surface remainder has gap with inner surface；
The lower mandrel is the cylindrical empty cavity configuration of one end open one end closing, has a right angle on the outer circumference surface of lower mandrel
Step surface, multiple permeable holes are processed on the outer circumference surface above step surface, have one end to position periphery, setting circle below step surface
The lower section processing pressurization hole of side face；
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 base, and upper mandrel is fixed together with lower mandrel, and cylinder is by upper core
Spindle guide is sleeved on lower mandrel backward, and the positioning periphery of the inner peripheral surface of the ring-shaped work pieces of bonding and lower mandrel coordinates, annular
Sealing ring is set between the right angle platform terrace of the interior step surface of part and lower mandrel；The main body frame is fixedly connected with the ground,
The cover plate assembly is flexibly connected with main body frame, cover plate assembly upper-end contact with cylinder simultaneously, contact surface by installed in
Sealing ring in body end surface realizes sealing, and cover plate assembly applies along the normal pressure of cylinder axial direction to cylinder realizes cylinder inner and outer ring
The sealing in border, by hole of pressurizeing to being pressurizeed after lower mandrel inner filling water, realize the test to cylinder sealing property.
2. detection means as claimed in claim 1, it is characterised in that the cover plate assembly include cover plate, column, rotation stop pin,
Tighten 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 is with tightening nut thread cooperation, the top of screw rod
End is fixedly connected with knob, is connected on knob and tightens bar；The column is slidably matched with tightening the cavity of nut, on the side of column
The guide groove of axial direction is processed, anti-loosing screw is stretched into guide groove through after tightening nut, and column is limited by the seam of guide groove
From tightening in nut, the openend of column side and the shaven head part of screw rod is are slidably matched, column opposite side and pressing plate
It is fixedly connected, rotation stop pin is 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 rectilinear movement up and down for being converted into column.
3. detection means as claimed in claim 1, it is characterised in that protective cover is installed on the main body frame, protective cover is adopted
With PC plastic plate, layer of metal protection network is further added by the outside of PC plastic plate.
4. detection means as claimed in claim 1, it is characterised in that the cover plate in the cover plate assembly passes through bearing and main body
Framework is flexibly connected, and hydraulic stem is also connected between cover plate and main body frame, realizes cover plate to empty in protective cover by hydraulic stem
Between unlatching and closing, pass through hold-down bolt and realize locking to cover plate.
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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| Publication Number | Publication Date |
|---|---|
| CN107560795A true CN107560795A (en) | 2018-01-09 |
| CN107560795B CN107560795B (en) | 2019-09-20 |
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ID=60974145
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710606626.0A Active CN107560795B (en) | 2017-07-24 | 2017-07-24 | Cylinder sealing property detection device |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| 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 |
| CN205605814U (en) * | 2016-03-08 | 2016-09-28 | 大连万通工业装备有限公司 | Integrated sealing device of full specification of cast tube hydraulic press |
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Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1809357A1 (en) * | 1990-10-24 | 1993-04-15 | N Proizv Ob Edinenie Splav | Method of hermetic sealing of cylindrical hollow articles during the internal pressure test |
| WO1997037206A1 (en) * | 1996-04-02 | 1997-10-09 | Guy Berube | Weld testing assembly |
| US20060000261A1 (en) * | 2003-06-20 | 2006-01-05 | Wardlaw Louis J Iii | Apparatus and method for elevated temperature weld testing |
| CN200993626Y (en) * | 2006-09-28 | 2007-12-19 | 新疆屯河节水科技有限公司 | Pipe sample hydraulic experiment mounting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| Publication number | Publication date |
|---|---|
| CN107560795B (en) | 2019-09-20 |
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