CN205895746U - Superhigh pressure, big cylinder diameter cold isostatic pressing machine end cover composite seal structure - Google Patents
Superhigh pressure, big cylinder diameter cold isostatic pressing machine end cover composite seal structure Download PDFInfo
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- CN205895746U CN205895746U CN201620720029.1U CN201620720029U CN205895746U CN 205895746 U CN205895746 U CN 205895746U CN 201620720029 U CN201620720029 U CN 201620720029U CN 205895746 U CN205895746 U CN 205895746U
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- end cap
- isostatic press
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Abstract
The utility model discloses a superhigh pressure, big cylinder diameter cold isostatic pressing machine end cover composite seal structure, including a lock ring, triangular sealing ring and yx type sealing washer, cold isostatic pressing machine end cover inboard is equipped with central clamping ring, inboard clamping ring and collar, inboard clamping ring and collar all overlap to be established outside central clamping ring, inboard clamping ring is located the collar inboard, prop up lock ring, triangular sealing ring and yx type sealing washer all are located the collar, in the installation cavity of formation between working cylinder and the inboard clamping ring, triangular sealing ring and yx type sealing washer all set up at a lock ring inboardly, the yx type sealing washer outer end outside is equipped with the inclined plane, first the face cooperation of inclined plane and triangular sealing ring, a triangular sealing ring second face and the contact of working cylinder inner wall, triangular sealing ring third face and the outer terminal surface of yx type sealing washer all with prop up the interior end face contaction of lock ring. The utility model discloses the sealing reliability is high, has prolonged cold isostatic pressing machine life, has improved product quality, has reduced equipment trouble and has rateed and maintain the input.
Description
Technical field
This utility model is related to a kind of end cover sealing structure, especially relates to a kind of supertension, large-diameter cold isostatic press
End cap combined sealing structure.
Background technology
Isostatic pressing technology obtains extensively in fields such as powder metallurgy, special cermacis, refractory material, material with carbon element, composites
General application.With scientific and technical development, become a kind of using the product of the big specification of method manufacture of powder metallurgy, super large-scale
Development trend, so diameter is just developed out more than supertension more than 150mpa of 1.6m, pressure, large-diameter cold isostatic press
Come.High pressure sealing container in cold isostatic press is made up of a cylinder body and two end caps, between such end cap and cylinder body just
Requirement is sealing, otherwise just cannot set up compressing required pressure in container.At present, in supertension, large-diameter
In the sealing of cold isostatic press end cap, it is applied in combination and to seal using copper sealing ring and yx type sealing ring, when liquid in working cylinder
During increase, the outer lip of yx type sealing ring and interior lip are fully opened, and outer lip and the work inside wall of cylinder are fully close to, interior lip
Fully it is close to end cap outer wall, make to be formed a hermetic container in working cylinder.Increase with work in-cylinder pressure, yx type sealing ring
Copper sealing ring is extruded, so that copper sealing ring is deformed upon, carry out sufficient machinery with the work inside wall of cylinder, end cap outer wall respectively
Sealing, thus complete the sealing in whole extrusion process.
But, in practical work process, because the cylinder diameter of working cylinder is larger, ovality when cylinder body processing and core cylinder are wound around
It is difficult to ensure that, leads to copper sealing ring and working cylinder inner wall sealing gap uneven, under ultra high pressure, copper sealing ring produces
Deformation can't fully and the work inside wall of cylinder of original interstice larger part forms mechanical seal, and yx type sealing ring will be squeezed into copper
In the gap of sealing ring and the work inside wall of cylinder, yx type sealing ring and copper sealing ring are damaged.When destroying to a certain extent, close
Envelope is just ineffective, and working solution here will produce leakage.Frequently there is seal failure fault during sheeted product,
Lead to downtrodden material in a large number to become waste product, cause production efficiency of equipment low, maintenance cost is big, waste material produces many.
Therefore, existing supertension, the end cover sealing structure of large-diameter cold isostatic press are primarily present two problems and need
Solve: (1) need to solve between the outer seamed edge of yx type sealing ring is extruded between copper sealing ring and the work inside wall of cylinder under high pressure
Problem in gap: because yx type sealing ring is rubber ring, quality is softer, when pressure is little, the outer seamed edge of yx type sealing ring is in work
It is extruded under the pressure making liquid in copper sealing ring and the gap of the work inside wall of cylinder, with the increase of work in-cylinder pressure, copper is close
Fully, the outer seamed edge that yx type sealing ring will be expressed in gap cuts away for seal deformation；With the increase of access times, yx
The outer seamed edge damage of type sealing ring is increasing, ultimately forms seal failure；Therefore want to extend the service life of yx type sealing ring,
This technical barrier will be solved first.(2) copper sealing ring and yx type sealing ring under the pressure of working solution to the work inside wall of cylinder
Deformation problem to be reached unanimity: under low pressure because copper sealing ring is that yx type sealing ring provides and supports, in higher pressure
Under, during being in continuous increase, this requires that copper sealing ring and the deflection of yx type sealing ring become to the cylinder diameter of working cylinder
In consistent, otherwise copper sealing ring can not be that yx type sealing ring provides and supports, also result in yx type sealing ring and be in failure state.
So, how to resolve supertension, the sealing problem of large-diameter cold isostatic press end cap seal, for normally having using this equipment
Very important meaning.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, provides a kind of supertension, large-diameter cold
Isostatic pressing machine end cap combined sealing structure, its structure is simple, reasonable in design and easy for installation, using bracing ring, triangle sealing
Circle and yx type sealing ring combination sealing mode, sealing reliability is high, significantly extends the service life of cold isostatic press, improves
Product quality, reduces equipment failure rate, reduces human and material resources and the financial resources that maintenance puts into.
For achieving the above object, the technical solution adopted in the utility model is: a kind of supertension, large-diameter cold isostatic press
End cap combined sealing structure it is characterised in that: include bracing ring, delta-ring and yx type sealing ring, described bracing ring, three
Angular sealing ring and yx type sealing ring are arranged at the working cylinder tip inside of cold isostatic press, the end cap of described cold isostatic press
Inner side is provided with center pressure ring, inner side pressure ring and mounting ring, and described inner side pressure ring and mounting ring are all set in outside the pressure ring of center, institute
State the inner side that inner side pressure ring is located at mounting ring, described inner side pressure ring is fixedly connected with center pressure ring by the first securing member, described
Center pressure ring is fixedly connected with end cap by the second securing member, described bracing ring, delta-ring and the equal position of yx type sealing ring
The installation intracavity being formed between mounting ring, working cylinder and inner side pressure ring, described delta-ring and yx type sealing ring are all provided with
Put the inner side in bracing ring, outside the outer end of described yx type sealing ring, be provided with inclined-plane, described inclined-plane and delta-ring
Match in first face, second face of described delta-ring is contacted with the inwall of working cylinder, described triangle sealing
The outer face of the 3rd face of circle and yx type sealing ring is all contacted with the inner face of bracing ring.
Above-mentioned supertension, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that: described triangle is close
The cross sectional shape of seal is right angled triangle, and the inclined-plane of described delta-ring is matched with inclined-plane, described triangle sealing
Face directly for one of circle and contact with the inner face of bracing ring, another of described delta-ring faces the inwall with working cylinder directly
Contact.
Above-mentioned supertension, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that: described inclined-plane and water
Angle between plane is 30 °～60 °.
Above-mentioned supertension, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that: described triangle is close
The cross sectional shape of seal is isosceles right triangle.
Above-mentioned supertension, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that: described inner side pressure ring
Gap is left and working cylinder between.
Above-mentioned supertension, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that: described bracing ring is
Beryllium-bronze bracing ring.
Above-mentioned supertension, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that: described triangle is close
Seal is beryllium-bronze delta-ring.
Above-mentioned supertension, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that: the sealing of described yx type
Enclose as rubber yx type sealing ring.
Above-mentioned supertension, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that: described first fastening
Part is bolt.
Above-mentioned supertension, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that: described second fastening
Part is bolt.
This utility model compared with prior art has the advantage that
1st, this utility model structure is simple, reasonable in design and easy for installation.
2nd, this utility model adopts bracing ring, delta-ring and yx type sealing ring combination sealing mode, notable prolongation
The service life of cold isostatic press, this combined seal ring at present on equipment using 2 years, once sealing does not occur and lost efficacy
Problem, sealing effectiveness is good, improves product quality, reduces equipment failure rate, reduce the human and material resources that maintenance puts into and
Financial resources.
3rd, this utility model adopts bracing ring, delta-ring and yx type sealing ring combination sealing mode, to large-diameter,
The sealing property of the liquid such as the hydraulic oil under supertension situation and water is reliable, and this combination sealing to have good automatic compensation close
The function in front cover gap, that is, in pressure process, diameter at working cylinder and end cap seal is with the increasing of pressure for cold isostatic press
Also increasing greatly, this combination sealing can go to compensate the variable quantity of work cylinder diameter automatically by deformation.
4th, this utility model adopts bracing ring, delta-ring and yx type sealing ring combination sealing mode, relatively existing
Supertension, for the end cap seal of large-diameter cold isostatic press, reduce the purchase cost of cold isostatic press end cap seal part,
Reduce cost of manufacture.
Below by drawings and Examples, this utility model is described in further detail.
Brief description
Fig. 1 is use state figure of the present utility model.
Fig. 2 is enlarged drawing at a of Fig. 1.
Fig. 3 is enlarged drawing at the b of Fig. 2.
Fig. 4 is the structural representation of this utility model yx type sealing ring.
Description of reference numerals:
1 bracing ring 12 delta-ring；3 yx type sealing rings；
3-1 inclined-plane；4 working cylinders；5 end caps；
6 inner side pressure rings；7 mounting rings；8 center pressure rings；
9 first securing members；10 second securing members；11 gaps；
12 working solutions；13 ring flanges；14 bracing frames；
15 frames；16 bearing plates；17 work pieces.
Specific embodiment
As shown in Figures 1 to 4, this utility model includes bracing ring 1, delta-ring 2 and yx type sealing ring 3, described
Bracing ring 1, delta-ring 2 and yx type sealing ring 3 are arranged at working cylinder 4 tip inside of cold isostatic press, described cold
It is provided with center pressure ring 8, inner side pressure ring 6 and mounting ring 7, described inner side pressure ring 6 and mounting ring 7 inside the end cap 5 of isostatic pressing machine
All it is set in outside center pressure ring 8, described inner side pressure ring 6 is located at the inner side of mounting ring 7, described inner side pressure ring 6 passes through first and fastens
Part 9 is fixedly connected with center pressure ring 8, and described center pressure ring 8 is fixedly connected with end cap 5 by the second securing member 10, described support
Circle 1, delta-ring 2 and yx type sealing ring 3 are respectively positioned on the installation formed between mounting ring 7, working cylinder 4 and inner side pressure ring 6
Intracavity, described delta-ring 2 and yx type sealing ring 3 are arranged at the inner side of bracing ring 1, outside described yx type sealing ring 3
It is provided with inclined-plane 3-1, described inclined-plane 3-1 is matched with first face of delta-ring 2, described triangle sealing outside end
Second face of circle 2 is contacted with the inwall of working cylinder 4, the 3rd face of described delta-ring 2 and yx type sealing ring 3
Outer face is all contacted with the inner face of bracing ring 1.
As shown in Figures 2 and 3, the cross sectional shape of described delta-ring 2 is right angled triangle, described triangle sealing
The inclined-plane of circle 2 is matched with inclined-plane 3-1, faces directly for one of described delta-ring 2 and contacts with the inner face of bracing ring 1,
Another of described delta-ring 2 is faced directly and is contacted with the inwall of working cylinder 4.Wherein, inclined-plane 3-1 and delta-ring
Matching in 2 face is the key of this combined sealing structure design, and the inclined-plane of delta-ring 2 is matched with inclined-plane 3-1
Close, this is to ensure that the key that yx type sealing ring 3 is reached unanimity with delta-ring 2 deformation quantity.In working cylinder 4, pressure increases
When, the pressure of working solution 12 makes the inside and outside lip of yx type sealing ring 3 fully open, and yx type is sealed by generation simultaneously
Enclose the power of 3 up/down pressures；Yx type sealing ring 3 transmits the force to delta-ring 2 by coordinating inclined-plane 3-1, makes triangle
Sealing ring 2 produces the pressure of the power expanding outwardly and up/down, and the power expanding outwardly makes delta-ring 2
Face the synchronous expansion with yx type sealing ring 3 directly for one, be close to the inwall of working cylinder 4, it is to avoid yx type sealing ring 3 edge portion is got into three
Damage in angular sealing ring 2 and the gap of working cylinder 4 inwall；The another of delta-ring 2 faces directly and bracing ring 1 simultaneously
Inner face contacts, and makes delta-ring 2 that the power that yx type sealing ring 3 passes to its up/down is passed to bracing ring 1,
Make bracing ring 1 produce deformation under the effect of the pressure, reduce the gap of bracing ring 1 and working cylinder 4 inwall, preferably for triangle
Shape sealing ring 2 provides and supports.
In the present embodiment, the angle between described inclined-plane 3-1 and horizontal plane is 30 °～60 °.This mainly considers yx type
Whether sealing ring 3 is synchronous with delta-ring 2 to deform, if asynchronous, also exist and damages showing of yx type sealing ring 3 edge portion
As if there is then increasing this angle, for increasing the power that delta-ring 2 expands outwardly it is ensured that yx type sealing ring 3
The synchronous deformation with delta-ring 2；If delta-ring 2 can not be in close contact with bracing ring 1 in pressing process, no
Bracing ring 1 can be made to produce enough deformation and to go support triangle shape sealing ring 2, then should reduce this angle, close for increasing triangle
The pressure to bracing ring 1 for the seal 2, makes bracing ring 1 produce enough deformation, provides enough supports for delta-ring 2.
Preferably, the cross sectional shape of described delta-ring 2 is isosceles right triangle.
As shown in Figures 2 and 3, leave gap 11 between described inner side pressure ring 6 and working cylinder 4, it is more square for leaving gap 11
Just working solution 12 is contacted with yx type sealing ring 3, preferably the pressure of working solution 12 is applied directly on yx type sealing ring 3；Separately
An outer reason is that more convenient end cap 5 can smoothly be put in working cylinder 4, without scratching the inwall of working cylinder 4.
In the present embodiment, described bracing ring 1 is beryllium-bronze bracing ring, and described delta-ring 2 is beryllium-bronze triangle
Sealing ring, bracing ring 1 and delta-ring 2 are prepared using beryllium-bronze so that bracing ring 1 and delta-ring 2 have good
Elasticity well, fatigue durability, electric conductivity, heat conductivity, corrosion resistance and preferable mechanical property.
In the present embodiment, described yx type sealing ring 3 is rubber yx type sealing ring.
In the present embodiment, described first securing member 9 is bolt.
In the present embodiment, described second securing member 10 is bolt.
In conjunction with Fig. 1, during installation, delta-ring 2 is placed on the inner side of bracing ring 1, yx type sealing ring 3 is placed on triangle
The inner side of shape sealing ring 2, and the inclined-plane of delta-ring 2 is installed with inclined-plane 3-1 cooperation, then by delta-ring
2 and yx type sealing rings 3 all lift, and make delta-ring 2 and the outer face of yx type sealing ring 3 all be close to the interior of bracing ring 1
End face, finally tightens the first securing member 9 and the second securing member 10, makes inner side pressure ring 6 compression yx type sealing ring 3, and whole combination is close
Envelope installs, that is, adopt bracing ring 1, delta-ring 2 and yx type sealing ring 3 combination sealing mode, come to isostatic cool pressing
The working cylinder 4 of machine and end cap 5 are sealed.Wherein, end cap 5 is upper end cover, bottom end cover, and that is, the end cap of working cylinder 4 upper end is upper
End cap, the end cap of working cylinder 4 lower end is bottom end cover, and working cylinder 4 supports and is arranged on bracing frame 14, the upper and lower ends of working cylinder 4
It is provided with ring flange 13, the ring flange positioned at working cylinder 4 lower end is connected with bracing frame 14, bracing frame 14 is arranged on cold etc. quiet
In the frame 15 of press；It is provided with bearing plate 16, work between frame 15 and upper end cover and between frame 15 and bottom end cover
It is placed with work piece 17 and working solution 12 in cylinder 4.
Operation principle of the present utility model is: under hyperpressure in working cylinder 4, the lip of yx type sealing ring 3 is more stepped up
The close inwall and the mounting ring 7 that are adjacent to working cylinder 4, simultaneously yx type sealing ring 3 give on the contact inclined-plane with delta-ring 2
2 one outside expansionary forces of delta-ring are because the cross-sectional area of delta-ring 2 is less, huge in yx type sealing ring 3
Expansionary force effect under, delta-ring 2 can synchronous with yx type sealing ring 3 fully expand outwardly, and is close to the interior of working cylinder 4
Wall, and produce enough mechanical seal it is ensured that superhigh pressure sealing is reliable；Ensure that yx type sealing ring 3 will not be squeezed into support simultaneously
In gap between circle 1 and working cylinder 4, effectively avoid the frequent breakage of yx type sealing ring 3 and bracing ring 1, simultaneously three
Under the pressure of angular sealing ring 2 and yx type sealing ring 3, bracing ring 1 generation shape is changed into delta-ring 2 provides outside deformation
Support.
The above, be only preferred embodiment of the present utility model, not this utility model imposed any restrictions, every
Any simple modification, change and equivalent structure transformation above example made according to this utility model technical spirit, all still
Belong in the protection domain of technical solutions of the utility model.
Claims (10)
1. a kind of supertension, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that: include bracing ring (1), three
Angular sealing ring (2) and yx type sealing ring (3), described bracing ring (1), delta-ring (2) and yx type sealing ring (3) are all provided with
Put working cylinder (4) tip inside in cold isostatic press, inside the end cap (5) of described cold isostatic press, be provided with center pressure ring
(8), inner side pressure ring (6) and mounting ring (7), described inner side pressure ring (6) and mounting ring (7) are all set in center pressure ring (8) outward, institute
State the inner side that inner side pressure ring (6) is located at mounting ring (7), the first securing member (9) and center pressure ring are passed through in described inner side pressure ring (6)
(8) it is fixedly connected, described center pressure ring (8) is fixedly connected with end cap (5) by the second securing member (10), described bracing ring (1),
Delta-ring (2) and yx type sealing ring (3) are respectively positioned on and are formed between mounting ring (7), working cylinder (4) and inner side pressure ring (6)
Installation intracavity, described delta-ring (2) and yx type sealing ring (3) are arranged at the inner side of bracing ring (1), described yx type
It is provided with inclined-plane (3-1), first face phase of described inclined-plane (3-1) and delta-ring (2) outside the outer end of sealing ring (3)
Cooperation, second face of described delta-ring (2) is contacted with the inwall of working cylinder (4), described delta-ring (2)
The 3rd face and the outer face of yx type sealing ring (3) all contact with the inner face of bracing ring (1).
2. according to the supertension described in claim 1, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that:
The cross sectional shape of described delta-ring (2) is right angled triangle, the inclined-plane of described delta-ring (2) and inclined-plane (3-
1) match, face directly for one of described delta-ring (2) and contact with the inner face of bracing ring (1), described triangle is close
Another of seal (2) is faced directly and is contacted with the inwall of working cylinder (4).
3. according to the supertension described in claim 2, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that:
Angle and horizontal plane between for the described inclined-plane (3-1) is 30 °～60 °.
4. according to the supertension described in claim 2, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that:
The cross sectional shape of described delta-ring (2) is isosceles right triangle.
5. according to the supertension described in claim 1, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that:
Gap (11) is left between described inner side pressure ring (6) and working cylinder (4).
6. according to the supertension described in claim 1, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that:
Described bracing ring (1) is beryllium-bronze bracing ring.
7. according to the supertension described in claim 1, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that:
Described delta-ring (2) is beryllium-bronze delta-ring.
8. according to the supertension described in claim 1, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that:
Described yx type sealing ring (3) is rubber yx type sealing ring.
9. according to the supertension described in claim 1, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that:
Described first securing member (9) is bolt.
10. according to the supertension described in claim 1, large-diameter cold isostatic press end cap combined sealing structure it is characterised in that:
Described second securing member (10) is bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720029.1U CN205895746U (en) | 2016-07-08 | 2016-07-08 | Superhigh pressure, big cylinder diameter cold isostatic pressing machine end cover composite seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720029.1U CN205895746U (en) | 2016-07-08 | 2016-07-08 | Superhigh pressure, big cylinder diameter cold isostatic pressing machine end cover composite seal structure |
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| Publication Number | Publication Date |
|---|---|
| CN205895746U true CN205895746U (en) | 2017-01-18 |
Family
ID=57771200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620720029.1U Active CN205895746U (en) | 2016-07-08 | 2016-07-08 | Superhigh pressure, big cylinder diameter cold isostatic pressing machine end cover composite seal structure |
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| CN (1) | CN205895746U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952709A (en) * | 2016-07-08 | 2016-09-21 | 金堆城钼业股份有限公司 | End cover combined sealing structure of ultrahigh-pressure and large-cylinder-diameter cold isostatic press |
| CN112610768A (en) * | 2020-11-30 | 2021-04-06 | 巩义市永盟给排水材料有限公司 | Double-flange limiting expansion joint |
| CN113108557A (en) * | 2021-03-29 | 2021-07-13 | 许云峰 | Auxiliary device for cold trap glass cover of freeze dryer |
-
2016
- 2016-07-08 CN CN201620720029.1U patent/CN205895746U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952709A (en) * | 2016-07-08 | 2016-09-21 | 金堆城钼业股份有限公司 | End cover combined sealing structure of ultrahigh-pressure and large-cylinder-diameter cold isostatic press |
| CN112610768A (en) * | 2020-11-30 | 2021-04-06 | 巩义市永盟给排水材料有限公司 | Double-flange limiting expansion joint |
| CN113108557A (en) * | 2021-03-29 | 2021-07-13 | 许云峰 | Auxiliary device for cold trap glass cover of freeze dryer |
| CN113108557B (en) * | 2021-03-29 | 2022-06-14 | 北京善在量子健康科技有限公司 | Auxiliary device for cold trap glass cover of freeze dryer |
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