CN101070108A - Combined helicoidal steel pail enclosure and sealing method - Google Patents
Combined helicoidal steel pail enclosure and sealing method Download PDFInfo
- Publication number
- CN101070108A CN101070108A CN 200710022447 CN200710022447A CN101070108A CN 101070108 A CN101070108 A CN 101070108A CN 200710022447 CN200710022447 CN 200710022447 CN 200710022447 A CN200710022447 A CN 200710022447A CN 101070108 A CN101070108 A CN 101070108A
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- bung flange
- concave station
- top cover
- hole flanging
- barrel top
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention discloses a combined helicoidal steel drum sealing machine and the sealing method. The sealing machine connects the drum coping boss and the concave helicoid by the resistance projection weld to form the combined helicoids, so the drum coping boss and the boss hole have the function of location and sealing. When the drum stuff with the sealing ring screws into the combined helicoid, the sealing ring can form a rubber elastic isolation field in the ring sealing beard room composed by the boss hole and the drum stuff by using the elasticity to prevent the liquid leak. When the steel drum is impacted and falls in transferred or loaded process, the liquid in drum is pressed, so the sealing structure can change the contact state of the sealing ring by using the material pressure to make the compact pressure on the sealing surface bigger than the drum pressure.
Description
Technical field
The present invention relates to a kind of combined helicoidal steel pail enclosure in the casing steel barrel field, this obturator adopts the hermetically-sealed construction of barrel top cover and seal ring direct contact.The invention still further relates to the encapsulating method of compound type helicoid closure.
Background technology
200 liters or 216.5 liters of closed steel drums made in Great Britain are most popular in the world at present steel packing containers, it is that inlet (discharge side) is used for injecting or discharging raw material that 2 embedded anistree helicoid closures, G2 obturators are arranged on its barrel top cover, the G3/4 obturator is a ventilation mouth, open ventilation mouth when being used for injection or discharging raw material, balance steel drum inner air and outer air difference of pressure guarantees to inject and discharge working properly carrying out.
Before this embedded helicoid closure uses, must on barrel top cover, fix the anistree bung flange of a band sealing surface and negative thread, so hole flanging that will on barrel top cover, stamp out the octagon boss earlier and make progress, then the anistree bung flange that puts the rubber lining ring is embedded in the barrel top cover boss hole flanging, on punch press with the crimping mould with the outside turnup of bung flange technology tube wall and wrap barrel top cover boss hole flanging, because the effect of bung flange turnup parcel extruding, the oppressed distortion of rubber lining ring on the bung flange, be filled in the gap between barrel top cover boss hole flanging and the bung flange, utilize the lining ring rubber elastomer to form the hermetic barrier band one, stop liquid in bucket to be gone out by the gap seepage between barrel top cover and the anistree bung flange, the arc groove that forms behind the bung flange turnup uses as sealing surface again, behind the liquid substance of packing in the bucket, the cooperage spigot that will have seal ring screws in the bung flange, seal ring is compressed and makes rubber elastomer form the hermetic barrier band in the annular seal groove that the bung flange groove is formed with cooperage spigot, prevents that liquid in bucket from going out from the thread pitch seepage between bung flange and the cooperage spigot.The encapsulating method of embedded anistree helicoid closure be earlier on barrel top cover permanent fixation one can only with the bung flange of cooperage spigot by being threaded, and bung flange and barrel top cover connection place sealed with lining ring.Connect sealing with cooperage spigot and tightening seal washer with bung flange by screw thread again behind the charging feedstock, finally reach the purpose of sealing steel drum.
Embedded anistree helicoid closure is a kind of indirect type obturator that needs secondary seal, this shows that just there is two passes in the outside seepage of liquid in bucket, article one, be the assembly clearance behind the lock dress of barrel top cover boss hole flanging and embedded anistree bung flange turnup limit, another is the thread pitch after anistree bung flange and cooperage spigot are installed.Certainly this two interspaces passage is all intercepted by bung flange lining ring and cooperage spigot washer sealing, and steel drum is can seepage in the ordinary course of things.
But when steel drum is subjected to impacting, shake and falling in transportation and loading and unloading, barrel internal pressure is raise, the steel drum barrel top cover produces distortion, embedded anistree bung flange will produce big gap or disengagement at barrel top cover boss hole flanging crimping place, and the lining ring sealing is ineffective, causes the liquid in bucket seepage, this embedded anistree helicoid closure is simple in structure, easy for installation, but turnup limit lock installation tool intensity is not high, can not bear barrel top cover than big bang and distortion.
Summary of the invention
Technical matters to be solved by this invention is on above-mentioned embedded anistree helicoid closure basis, the combined helicoidal steel pail enclosure of a kind of barrel top cover and seal ring direct contact is provided, and the present invention also provides a kind of encapsulating method of combined helicoidal steel pail enclosure.
In order to solve the problems of the technologies described above, the present invention has done improvement to barrel top cover boss hole flanging structure, with 180 ° of boss hole flanging direction upsets, makes the hole flanging direction in bucket, makes barrel top cover boss reverse side form a reverse U shape ring-type shallow slot.
In order to satisfy the specific (special) requirements of barrel top cover and seal ring direct contact, the present invention has also done improvement to the bung flange structure, bung flange also overturns 180 °, Flange Plane upwards, and at the close concave station of screw thread place punching press of Flange Plane, for the concave station bung flange is forever connected with the barrel top cover boss, the present invention is 8 conical projection welding points of punching press on concave station bung flange Flange Plane, are convenient to flash butt welding and connect.
After solving concave station bung flange inversion installation, bung flange is protruding in barrel top cover inside, a raffinate emptying ability in the influence bucket, and the present invention bores 4 near the diameter at bottom of thread place and is 60 ° drain gutter with the bung flange axis on concave station bung flange step, drain gutter is outside bucket, in case but stop up easy cleaning, mediation.
The encapsulating method of compound type helicoid closure provided by the invention is that barrel top cover boss hole flanging is forever connected by resistance projection-welding with the concave station bung flange, forms the combination bung flange, and barrel top cover boss hole flanging relies on the concave station bung flange as sealing surface.When the cooperage spigot that seal ring is housed screws in the combination bung flange, cooperage spigot firmly is clamped in barrel top cover boss hole flanging and seal ring in the concave station, seal ring is compressed the generation screen resilience, in barrel top cover boss hole flanging and cooperage spigot circular groove fixed space, form sealing function, when steel drum is fallen in loading and unloading, the bucket internal pressure rises rapidly, and the circular groove fixed space can make seal ring produce self-tightening by pressure medium in the bucket.
Description of drawings
Below in conjunction with drawings and embodiments the present invention is described in further detail:
Fig. 1: be the whole cutaway view of combined helicoidal steel pail enclosure of the present invention;
Fig. 2: be the cutaway view of barrel top cover boss 2 shown in Figure 1;
Fig. 3: be the cutaway view of concave station bung flange 3 shown in Figure 1;
Fig. 4: be the birds-eye view of concave station bung flange 3 shown in Figure 3;
Fig. 5: for compound type steel drum obturator cooperage spigot shown in Figure 1 is installed preceding part sectional view;
Fig. 6: be compound type steel drum obturator shown in Figure 1, cooperage spigot is installed the back part sectional view.
The specific embodiment
Fig. 1 is a compound type bung flange steel drum sealed whole body cutaway view of the present invention, and at barrel top cover 1 upper punch belling platform 2 and a boss hole flanging 10 crooked in bucket, concave station bung flange 3 forever is linked together, forms combination bung flange 6 by resistance projection-welding point 7 and boss 2.Not sealing lining ring and other fillers in concave station bung flange 3 and the boss 2 conjunction plane gaps, is packing less between the two.The effect of combination bung flange 6 is the structural strength of concave station bung flange 3 self and screw thread to be clamped funtion part transfer to barrel top cover boss 2 and boss hole flanging 10, makes the barrel top cover boss hole flanging 10 after the combination can bear very big contact pressure, and uses as sealing surface.When the cooperage spigot 4 that has seal ring 5 screws in combination bung flange 6, seal ring 5 just directly is pressed on the barrel top cover boss hole flanging 10, after cooperage spigot 4 compressed the location, seal ring 5 utilized the screen resilience of compression generation at barrel top cover boss hole flanging 10, in the annular seal slot space 8 that forms between concave station bung flange 3 and the cooperage spigot 4.Form one rubber elastomer and intercept band.Can effectively prevent the liquid in bucket seepage.
As can be seen from Figure 2, in the middle of the boss 2 on the barrel top cover 1 a boss hole flanging 10 is arranged, the diameter of hole flanging is 60.4 millimeters, and boss 2 is guiding positions of seal ring 5 with the transition position arc 12 of hole flanging 10, and the radius of circular arc 12 is 2.25 millimeters, and maximum is no more than 2.50 millimeters.The hole flanging height 13 is 3.50 millimeters from the plane of boss 2 to the hole flanging bottom surface, it is 5.0 millimeters that boss 2 exceeds barrel top cover 1, when the width of the reverse U shape ring-type shallow slot 18 that the reverse side of boss 2 16 and boss hole flanging outer wall 15 and boss inwall 17 form should guarantee to assemble with the installation adjusting play of 0.3 millimeter to 0.5 millimeter of the flange outer diameter 28 of concave station bung flange 3 and 22 maintenance of concave station inwall.
Fig. 3, concave station bung flange 3 shown in Figure 4 can adopt following procedure of processing manufacturing, elder generation's blanking and drawing stamps out the bung flange blank, punching sizing is with the process of blank finishing to the part requirement then, again punching press concave station 23, projection welding point 21, bore drain gutter 24, go up at last tapping machine, attack tubulation screw thread 29.The diameter of concave station 23 is 64.0 millimeters, the concave station degree of depth is 3.0 millimeters, concave station bung flange Flange Plane 20 is 1.0 millimeters with the radius of the transition arc 27 of concave station wall 22, concave station wall 22 also is 1.0 millimeters with the radius of the transition arc 26 of concave station step 25, and concave station step 25 is not more than 1.75 millimeters with circular arc 19 radiuses in bung flange hole 30.The diameter of conical projection welding point 21 is 2.4 millimeters, highly is 2.0 millimeters.The diameter of drain gutter 24 is 3.0 millimeters, and inlet concave station bung flange is attacked 55 ° of non-tight gas threads of system G2, and ventilation mouth concave station bung flange is attacked 55 ° of non-tight gas threads of system G3/4.Concave station bung flange material thickness is 2.8 millimeters, and bottom-to-top-height is 13.5 millimeters.Concave station bung flange flange diameter is 82.0 millimeters, and as keeping octagon, its opposite side is of a size of 77.9 millimeters.
When concave station bung flange 3 and barrel top cover boss 2 are assembled by resistance projection-welding, concave station bung flange 3 flange face epirelief solder joints 21, under the high temperature that the pressure of resistance welding machine and powerful electric current produce during by projection welding point, melt, clamp-on in the material that is dissolving boss bottom surface 16 on the pointed cone fusing of margin limit of projection welding point 21, all fit up to concave station bung flange flange face 20 and boss bottom surface 16, projection welding point 21 all melts in the material of clamp-oning boss bottom surface 16 and fuses into one.The cooling back forms firm projection welding nugget 7, makes concave station bung flange 3 and boss 2 permanent close-coupled together, forms combination bung flange 6, and the projection welding nugget size is about 3.0 millimeters, and each projection welding spot weld intensity is greater than 20Nm.The integral solder intensity of G2 combination bung flange 6 is greater than 160Nm, and the integral solder intensity of G3/4 combination bung flange is greater than 100Nm.0.2 millimeter of the right alignment franchise of combination bung flange 6 shaping rear boss hole flangings 10 and concave station bung flange 3.Cooperage spigot 4 adopts standard steel extrusion structure cooperage spigot, and all scantling of structure do not change, and tightening seal washer 5 adopts normal pitch shape rubber seal, and all scantling of structure do not change.
Encapsulating method such as Fig. 5 of combination helicoidal steel pail enclosure, shown in Figure 6, when putting seal ring 5, cooperage spigot 4 screws in combination bung flange 6, seal ring covers under the compressing on limit 34 at neck 35 location and the cooperage spigot of cooperage spigot 4, at first touch boss hole flanging arc surface 12, and under the guiding of arc surface 12, slip in the hole flanging 10 of combination bung flange 6, seal ring 5 continues to be squeezed and begins to be out of shape, and the circular groove 8 that forms along barrel top cover boss hole flanging wall 11 and cooperage spigot neck 35 moves down, squeese pressure increase along with seal ring 5, the diameter of barrel top cover boss hole flanging 10 can produce small elastic deformation, make the enlarged-diameter of hole flanging 10, barrel top cover hole flanging outer wall 15 reduces gradually with the gap 39 of concave station bung flange inwall 22.When hole flanging outer wall 15 touches concave station bung flange inwall 22, because it supports positioning action, the hole flanging diameter stops to change, when touching barrel top cover boss hole flanging arc surface 12 along with the lid limit wedge angle 31 of cooperage spigot 4 or cooperage spigot lid bottom surface 34, hole flanging 10 can produce small elastic deformation in bucket under the pressure on the lid limit 33 of cooperage spigot 4, hole flanging base 13 reduces gradually with the gap 38 of concave station bung flange step 25, when hole flanging wedge angle 14 touches concave station bung flange circular arc 26 or hole flanging base 13 and touches concave station bung flange step 25, because the support positioning action of concave station bung flange step 25, barrel top cover hole flanging 10 stops to descend, and cooperage spigot 4 lid limit wedge angles 31 and cooperage spigot lid bottom surface 34 are subjected to the location of boss 2 and hole flanging circular arc 12 simultaneously and stop to descend.
Cover the annular seal groove fixed space 8 limit 34 between formed in apart from neck 35, the cooperage spigot of shape seal ring 5 at barrel top cover boss hole flanging inwall 11 and cooperage spigot 4 this moment, forms one elastic body and intercept band.The initial contact pressure that it produces is bigger, is enough to stop liquid in bucket seepage generally speaking.
When steel drum is impacted in transportation or loading and unloading, fall, liquid in bucket is squeezed or variation of ambient temperature, cause when a barrel interior chemical substance vapor tension raises, because concave station bung flange 3 does not directly contact with seal ring 5, projection welding gap 40 between concave station bung flange flange face 20 and the barrel top cover boss bottom surface 16 and the interior spatial communication of bucket, the thread pitch 37 of the negative thread 29 of concave station bung flange 3 and the outside thread 36 of cooperage spigot 4 also with bucket in spatial communication, the concave station bung flange is in barrel internal pressure fully, the bung flange surface does not have difference of pressure, so the bucket internal pressure can not produce any influence to the concave station bung flange.
Because barrel top cover boss 2 is connected into combination bung flange 6 with concave station bung flange 3 by resistance projection-welding, barrel top cover boss hole flanging 10 and seal ring 5 firmly are clipped in the concave station 23 by concave station bung flange 3 and cooperage spigot 4, their integral rigidity is fine, can not produce distortion because of pressure medium in the bucket raises.The bucket internal pressure can only be by the seal ring 5 generation squeese pressures in 37 pairs of seal groove fixed spaces of thread pitch 8 that connect gap 40 and concave station bung flange negative thread 29 and cooperage spigot outside thread 36 of barrel top cover boss bottom surface 16 and concave station bung flange flange face 20.Seal ring 5 is under the effect of bucket internal pressure, move towards force direction, alternation of cross section shape when seal ring 5 moves at the remaining space that forms to barrel top cover boss hole flanging circular arc 12 and cooperage spigot lid limit wedge angle 31, institute is had living space be full of rubber elastomer, the contact pressure on the sealing surface is along with the corresponding rising of bucket internal pressure.Thisly change the seal ring contact condition by the pressure of medium in the bucket own and make it to realize the leak free process, be called " self-tightening " again.Self-tightening makes contact pressure on barrel top cover boss hole flanging inwall 11 and cooperage spigot neck 35, cooperage spigot lid limit 34 sealing surfaces always greater than the bucket internal pressure, and the encapsulating method of this structure makes combined helicoidal steel pail enclosure have excellent sealing ability.
The present invention is not limited to barrel top cover boss hole flanging shape and concave station bung flange shape, needs only barrel top cover boss hole flanging in bucket, and directly contacts with seal ring as sealing surface, under cooperage spigot and bung flange clamping, has sealing function, all belongs to the scope of the invention.
Claims (10)
1, a kind of combined helicoidal steel pail enclosure, it comprises barrel top cover boss (2), concave station bung flange (3), cooperage spigot (4) and seal ring (5), it is characterized in that: barrel top cover boss (2) forever is connected to form combination bung flange (6) with concave station bung flange (3) by resistance projection-welding, and barrel top cover boss hole flanging (10) is had the ability as sealing surface.Make up bung flange (6) when cooperage spigot (4) screws in, seal ring (5) forms one rubber elastomer and intercepts band in the circular groove fixed space of boss hole flanging (10), concave station bung flange (3) and cooperage spigot (4) combination.
2, according to claim 1 described compound type bung flange steel drum sealer, it is characterized in that: described barrel top cover boss (2) outward appearance is disc, also can is octagon.A cylindrical hole flanging (10) crooked in bucket is arranged in the middle of the boss (2), and hole flanging also can be L shaped, circular arc, and the inwall (11) and the hole flanging circular arc (12) of hole flanging (10) are the seal ring contact surfaces.
3, according to claim 1 described combination helicoidal steel pail enclosure, it is characterized in that: described concave station bung flange (3), profile are round flange shapes, also can be anistree flange shapes, flange face (20) has a cylindrical concave station (23), and concave station also can be taper, circular arc.Concave station inwall (22) is the bearing surface of barrel top cover boss hole flanging outer wall (15), and concave station step (25) is the bearing surface of barrel top cover boss hole flanging bottom surface (13).
4,, it is characterized in that described concave station bung flange (3) is at last 8 the conical projection welding points of punching press of flange face (20) according to claim 1 described combined helicoidal steel pail enclosure.
5, according to claim 1 described combined helicoidal steel pail enclosure, it is characterized in that: described boss hole flanging (10), the circular groove fixed space that concave station bung flange (3) and cooperage spigot (4) are formed is an osed top fixed space.
6, a kind of encapsulating method of combined helicoidal steel pail enclosure, barrel top cover boss (2) forever connects by resistance projection-welding with concave station bung flange (3), form combination bung flange (6), barrel top cover boss hole flanging (10) relies on concave station bung flange (3) to become sealing surface, seal ring (5) forms one rubber elastomer and intercepts band in the circular groove fixed space of barrel top cover boss hole flanging (10) concave station bung flange (3) and cooperage spigot (4) composition, the initial pressure that it produced is enough to stop the liquid in bucket seepage.When being subjected to falling liquid in bucket pressure in transportation or loading and unloading, steel drum rises rapidly, osed top circular groove fixed space can make seal ring (5) by pressure medium in the bucket, change the seal ring cross sectional shape, make contact pressure on the sealing surface always greater than pressure medium in the bucket.
7, according to claim 6 described encapsulating methods, it is characterized in that: described combination bung flange (6) connects by resistance projection-welding, the structural strength of concave station bung flange (3) is transferred to barrel top cover boss hole flanging (10), make boss hole flanging (10) can bear very big contact pressure, and use as sealing surface.
8, according to claim 6 described encapsulating methods, it is characterized in that: when described concave station bung flange (3) forever connected by resistance projection-welding with barrel top cover boss (2), leakproofing material was not used in the conjunction plane gap.
9, according to claim 6 described encapsulating methods, it is characterized in that: described combination bung flange (6) adopts barrel top cover boss hole flanging (10) directly to contact with seal ring (5), and the whole seal process of combined helicoidal steel pail enclosure only uses a seal ring.
10, according to claim 6 described encapsulating methods, it is characterized in that: the circular groove fixed space that described barrel top cover boss hole flanging (10), concave station bung flange (3) and cooperage spigot (4) are formed, not only can make seal ring (5) produce sealing function, can also make seal ring (5) produce self-tightening therein by pressure medium in the bucket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710022447 CN101070108A (en) | 2007-05-21 | 2007-05-21 | Combined helicoidal steel pail enclosure and sealing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710022447 CN101070108A (en) | 2007-05-21 | 2007-05-21 | Combined helicoidal steel pail enclosure and sealing method |
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| Publication Number | Publication Date |
|---|---|
| CN101070108A true CN101070108A (en) | 2007-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710022447 Pending CN101070108A (en) | 2007-05-21 | 2007-05-21 | Combined helicoidal steel pail enclosure and sealing method |
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|---|---|
| CN (1) | CN101070108A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009039711A1 (en) * | 2007-09-25 | 2009-04-02 | Lianyuan Zhang | An inserted closure construction with a threaded pipe |
| CN106882471A (en) * | 2012-05-15 | 2017-06-23 | 欧文斯-布洛克威玻璃容器有限公司 | Container-closure with vacuum release |
| CN109848320A (en) * | 2018-12-21 | 2019-06-07 | 建德市三业金属制造有限公司 | A kind of barrel of circle flange sealer automatic production line equipment |
-
2007
- 2007-05-21 CN CN 200710022447 patent/CN101070108A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009039711A1 (en) * | 2007-09-25 | 2009-04-02 | Lianyuan Zhang | An inserted closure construction with a threaded pipe |
| CN106882471A (en) * | 2012-05-15 | 2017-06-23 | 欧文斯-布洛克威玻璃容器有限公司 | Container-closure with vacuum release |
| CN106882471B (en) * | 2012-05-15 | 2019-05-14 | 欧文斯-布洛克威玻璃容器有限公司 | Container-closure with vacuum release |
| CN109848320A (en) * | 2018-12-21 | 2019-06-07 | 建德市三业金属制造有限公司 | A kind of barrel of circle flange sealer automatic production line equipment |
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