CN106670930B - Process the thermal sleeve grinding attachment of inverted cone surface sealing ring - Google Patents
Process the thermal sleeve grinding attachment of inverted cone surface sealing ring Download PDFInfo
- Publication number
- CN106670930B CN106670930B CN201611264165.5A CN201611264165A CN106670930B CN 106670930 B CN106670930 B CN 106670930B CN 201611264165 A CN201611264165 A CN 201611264165A CN 106670930 B CN106670930 B CN 106670930B
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- China
- Prior art keywords
- grinding attachment
- sealing ring
- face
- extended structure
- disc body
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/08—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section
- B24B19/09—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section for grinding trochoidal surfaces, e.g. in rotor housings of Wankel engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
Process inverted cone surface sealing ring thermal sleeve grinding attachment, have one it is axially extending to side using central axis as the radial outreach disc body of the centre of gyration and in its radial outside and have can with the outer peripheral diameter of processed sealing ring be adapted internal diameter tubular extended structure.Two axial end faces of disc body are the positioning working face that is respectively perpendicular to the datum level of central axis and can contact with the non-tight end face of processed sealing ring；The inner hole surface of the tubular extended structure revolution hole face cylindric or coniform for diameter≤axially extending end diameter of the root circumferential surface in its positioning working face direction.The grinding attachment can be convenient accurately processes only several points to tens of points or so, along axial maximum cut only some tens of pm on seal face, and to the surface quality requirements of seal face are very high, particularly sealing surface with inverted cone shape surface.
Description
Technical field
The present invention relates to a kind of for processing the seal face of sealing ring, especially has back taper seal face sealing ring
Grinding attachment.
Background technique
The core component that sealing is realized in mechanical seal is axial restraint and the rotating ring that can rotate with the axis, and through shaft end
Sealing surface and rotating ring are oppositely arranged and can make the irrotational stationary ring of axial floating.Conic Mechanical Seal refer in rotating ring and/or
The sealing surface that the positive cone or back taper radially with end face with certain taper are offered on the seal face of stationary ring, by changing
Become the Parameters variation of tapered surface to adjust the dynamic and static pressure effect for the fluid film that medium is formed between seal face, to be filled
The opening force and fluid film rigidity of foot.Conic Mechanical Seal big, biggish occasion of dielectric viscosity suitable for sealing surface pressure drop, at present
More application is in the shaft end seal of nuclear power main pump.
Since the cone angle of the upper conical sealing surface of sealing ring in Conic Mechanical Seal is smaller, magnitude is typically only several points to tens of
Point, thus when processing to its end face along axial maximum cut only some tens of pm, and due to the table to seal face
Face quality has very high requirement including surface roughness, flatness and verticality of axis etc., this allows for general
Method is difficult to effectively to obtain this sealing ring with conical seal (contact) face.
Summary of the invention
In consideration of it, the present invention provides a kind of for processing the seal face of sealing ring, especially there is back taper sealing
The grinding attachment of face sealing ring can effectively solve the problems, such as this.
The thermal sleeve grinding attachment of processing inverted cone surface sealing ring of the present invention includes one in structure with central axis
For the centre of gyration radial outreach disc body and, it is axially extending to side in its radial outside and have can be with processed sealing ring
Outer peripheral diameter be adapted internal diameter tubular extended structure.Two axial end faces of the disc body are to be respectively perpendicular to central axis
Datum level and the positioning working face that can be contacted with the non-tight end face of processed sealing ring, thus the datum level and positioning work
Face is in the shape that is parallel to each other.Wherein, the inner hole surface of the tubular extended structure positions the straight of the root circumferential surface in working face direction for it
The cylindric or coniform revolution hole face of diameter≤axially extending end diameter.
In addition, under normal circumstances, the least radius of the tubular extended structure inner hole surface can be outer with processed sealing ring
There is 5 ~ 500 microns of magnitude of interference between all radiuses.
According to being the plane vertical with rotary shaft or to bore the requirement on inclined-plane with different angle to seal face, usually
Can tubular extended structure described in above structure is cylindric or it is coniform revolution hole face cone angle size control be 0 ~ 30' model
It encloses.Excessive cone angle, which will lead to, causes part to generate biggish stress collection neutralization change when grinding attachment is contacted with processed sealing ring
Shape amount；When cone angle is zero, the surface of revolution of tubular extended structure is a circular hole face.
As a kind of preferred form, disc body described in above structure be can be used as the cyclic annular disc with central bore
Body.
Structure, which can further be optimized, further includes, and the axial extension of the tubular extended structure is at least below processed
1 millimeter of the axial width of sealing ring, to facilitate the grinding to sealing ring end face.In addition, the disc body central bore
Radius can be at least more than 2 millimeters of internal bore radius of sealing ring.After the completion of facilitating grinding, make sealing ring and grinding attachment
Disassembly separation.
In above structure, a diameter is equipped in the inner hole surface of the tubular extended structure and the adjoining position of positioning working face
To groove.On the one hand the groove can be conducive to be installed in place processed sealing ring smoothly on grinding fixture, furthermore this is recessed
The size of slot can also become the comprehensive of processed sealing ring by the two axial end face datum level of disc body and positioning working face
Shape generates corresponding influence.The radial depth of the groove, preferably make under normal circumstances its with the axially extending structure of tubular most
The ratio between big radial thickness is 0.01 ~ 0.5:1.For example, the radial depth of the groove can be 0.2 ~ 3 millimeter under normal conditions.This
Outside, the ratio between the axial extension of the axial width of groove described in above structure and tubular extended structure, generally can be preferred
For 0.01 ~ 0.6:1.For example, the value of the groove axial width may generally be 0.3 ~ 6 millimeter.
In the structure of the above-mentioned grinding attachment of the present invention, the axial width of the groove is specific bit working face and groove
Axial distance between relative wall；The radial depth of the groove, refer to the groove and tubular extended structure it is cylindric or
Radial distance between the adjacent wall turning point and bottom portion of groove cylindrical surface of coniform revolution hole face；The tubular extended structure
Axial extension, refer to positioning working face by disc body between the axially extending end face of tubular extended structure it is axial away from
From.
On the basis of above structure, one can also be equipped at the position of the positioning working face radially inner side of the disc body
The step structure of axial indent.Wherein it is preferred that the axial indent width of the step structure and the axial width of disc body can be made
The ratio between degree is 0 ~ 0.6:1, and/or the ratio between the radical length of the step structure and the radical length of disc body can be made to be 0 ~ 0.3:
1.The setting of this step can facilitate in the biggish situation of the external diameter of outreach disc to the positioning working face radial dimension
Adjustment, can have better contact surface radial position and contact area with the non-tight end face of processed sealing ring.
When the above-mentioned grinding attachment of the present invention carries out inverted cone surface processing to the seal face of sealing ring, first above-mentioned apparatus can be added
After heat, the hot jacket in a manner of making the positioning work face contact of its tubular extended structure push against processed sealing ring non-tight end face
On processed sealing ring.After cooling, by above-mentioned apparatus positioning working face and the tubular extended structure inner hole surface
Common effect of contraction, be processed sealing ring sealing surface just will form one with cone angle beta positive cone cell bulging deformation table
Face.It is placed on Grinder bench face with the datum level of grinding attachment of the present invention, with grinding machine head to the table of the sealing ring tapered protrusion
Face is gradually ground from inside to outside since the highest internal side diameter of protrusion, until being ground to the radial direction of required seal face
Stop processing at width, and is separated processed sealing ring with grinding attachment with modes such as conventional hydraulic screw extractors.It relieves
The processed sealing ring that the effect of contraction of working face and tubular extended structure inner hole surface is positioned in grinding attachment can restore its original
Beginning shape, and the required radius outside left of its seal face formed one with cone angle beta ' inverted cone shape surface.
It is thus understood that the device of above structure of the present invention, can be convenient and accurately process only on seal face
There are several points to tens of points or so, along axial maximum cut only some tens of pm, and to the surface quality requirements of seal face
It is very high that there is inverted cone shape surface.
Below in conjunction with the specific embodiment of the embodiment shown in that figure, above content of the invention is remake further detailed
It describes in detail bright.But the range that this should not be interpreted as to the above-mentioned theme of the present invention is only limitted to example below.On not departing from the present invention
In the case of stating technical idea, the various replacements or change made according to ordinary skill knowledge and customary means should all be wrapped
It includes within the scope of the invention.
Detailed description of the invention
Fig. 1 is a kind of structural representation of axial section of the thermal sleeve grinding attachment of processing inverted cone surface sealing ring of the invention
Figure.
Fig. 2 is to be processed on sealing ring hot jacket grinding attachment shown in Fig. 1 the positive cone cell of seal face generation after cooling strain
The structural schematic diagram of deformation.
Fig. 3 is the status diagram that grinding attachment and processed sealing ring are processed on grinding machine.
Fig. 4 is to be formed to obtain the structural representation of inverted cone shape seal face on processed sealing ring after separating with grinding attachment
Figure.
Fig. 5 is that a kind of structure when the sealing ring shown in Fig. 4 with inverted cone shape seal face is used for mechanically-sealing apparatus is shown
It is intended to.
Specific embodiment
It is the present invention shown in FIG. 1 to FIG. 4 for processing a kind of structure of the grinding attachment 1 with inverted cone surface sealing ring,
It include a radial outreach disc body 4 with central axis 27 for the centre of gyration, He Qi radial outside axially prolongs to side
It stretches and there is the tubular extended structure 3 that can be adapted internal diameter with 9 diameter of periphery of processed sealing ring 2.
Two axial end faces of disc body 4 be respectively perpendicular to central axis 27 datum level 25 and can be with processed sealing ring
The positioning working face 7 that 2 non-tight end face 10 contacts.The radius r1 of 4 central bore of disc body, which is greater than, is processed the interior of sealing ring 2
At least 2 millimeters of pore radius r5.The Step-edge Junction of an axial indent is equipped at the radially inner side position of the positioning working face 7 of disc body 4
Structure 8, the ratio between width and the axial width of disc body 4 of axial indent are 0 ~ 0.6:1；The radical length and disk of step structure 8
The ratio between radical length of sheet body 4 is 0 ~ 0.3:1.
The inner hole surface 5 of the tubular extended structure 3 is prolonged for its diameter≤axial direction for positioning the root circumferential surface in 7 direction of working face
The cylindric or coniform revolution hole face for stretching end diameter, the cone angle beta size for turning round hole face is 0 ~ 30'.In tubular extended structure 3
There is 5 ~ 500 microns of magnitude of interference between the least radius r2 of hole face 5 and the 9 radius r4 of periphery of processed sealing ring 2.Tubular extends
1 millimeter of axial width of the axial extension of structure 3 at least below processed sealing ring 2.In the inner hole of tubular extended structure 3
Face and the adjoining position of positioning working face 7 are equipped with a radial groove 6.The radial depth of groove 6 is 0.2 ~ 3 millimeter, and its radial direction
The ratio between maximum radial thickness of depth and tubular extended structure 3 is 0.01 ~ 0.5:1；The axial width of groove 6 is 0.3 ~ 6 millimeter,
And the ratio between axial extension of the axial width and tubular extended structure 3 is 0.01 ~ 0.6:1.
When being sealed the processing of ring seal face using above-mentioned grinding attachment, (temperature will be heated after the heating of grinding attachment 1 first
Degree may generally be 100 ~ 400 DEG C), by its 3 inner hole hot jacket of tubular extended structure on the sealing ring 2 of tapered surface to be processed, and make
The positioning working face 7 of the non-tight end face 10 and grinding attachment mid-game sheet body 4 that are processed sealing ring 2 contacts against positioning.It is cooling
Afterwards, under positioning working face 7 and the 3 inner hole surface of revolution of tubular extended structure, 5 collective effect, processed sealing ring 2 after cooling
Seal face 26 just will form the bulging deformation surface of a positive cone cell with cone angle beta.It is flat with the datum level 25 of disc body 4
The grinding attachment being set in together and processed sealing ring 2 are placed on Grinder bench face 28 by face, with 30 pairs of quilts of grinding machine head
The raised sealing surface 26 of processing sealing ring 2 is ground.When grinding, first the internal side diameter of seal face 26 is ground, by interior
Gradually seal face 26 is ground outward, until stopping when radius r3 required for being ground to.With modes such as hydraulic screw extractors
After separating processed sealing ring 2 with grinding attachment 1, the 3 inner hole surface of revolution of tubular extended structure, 5 He of grinding attachment 1 is relieved
The sealing ring 2 for positioning 7 effect of contraction of working face, that is, restore its original form, and radius is less than in r3 on seal face 26
The inverted cone shape surface 11 that a cone angle is β ' is formed on the end face of side.
Fig. 5 is a kind of mechanical seal using the sealing ring with inverted cone shape seal face processed through above-mentioned grinding attachment
The basic structure of device includes that can rotate and have close using the inverted cone shape surface 11 of above-mentioned processed sealing ring 2 with axis 16
The rotating ring of end pattern is sealed, and is oppositely arranged and can make the irrotational stationary ring 12 of axial floating through shaft end sealing surface and rotating ring,
Wherein throw-out collar 21, elastic construction 22 and anti-rotation location structure 23 of the stationary ring 12 through the setting that is in contact with its non-tight axial end floats
It is dynamic to be supported in throw-out collar seat 13.The radial direction of rotating ring is set in together through tolerance ring 18 and axle sleeve 14；The axial step with axle sleeve 14
Face contact, and compressed through clamping sleeve 19, it is circumferential to be fixed together through trundle 15 and axle sleeve 14.Between two sealing ring seal faces
Without between tapered surface with gaph 0It separates.
In addition to structure type sealing device shown in fig. 5, the seal face with inverted cone shape surface 11 can also be adopted
With being provided separately on the seal face of stationary ring 12, or the form being arranged on rotating ring and the opposite seal face of stationary ring simultaneously.
Claims (13)
1. process inverted cone surface sealing ring thermal sleeve grinding attachment, it is characterized in that include one with central axis (27) be revolution in
Radial outreach disc body (4) He Qi radial outside of the heart it is axially extending to side and have can be with processed sealing ring (2)
Periphery (9) diameter is adapted the tubular extended structure (3) of internal diameter, and two axial end faces of the disc body (4) are respectively datum level
, and datum level (25) and positioning work (25) and the positioning working face (7) that can be contacted with the non-tight end face of processed sealing ring (2)
Make face (7) to be respectively perpendicular to central axis (27), the inner hole surface (5) of the tubular extended structure (3) positions working face (7) for it
The cylindric or coniform revolution hole face of the diameter of the root circumferential surface in direction≤axially extending end diameter.
2. grinding attachment as described in claim 1, it is characterized in that the most smaller part of the tubular extended structure (3) inner hole surface (5)
There is 5 ~ 500 microns of magnitude of interference between diameter (r2) and periphery (9) radius (r4) of processed sealing ring (2).
3. grinding attachment as described in claim 1, it is characterized in that the tubular extended structure (3) is cylindric or coniform revolution
Cone angle (β) size of hole face is 0 ~ 30'.
4. grinding attachment as described in claim 1, it is characterized in that the disc body (4) is the annual disk with central bore
Sheet body.
5. grinding attachment as described in claim 1, it is characterized in that the axial extension of the tubular extended structure (3) is at least
Less than 1 millimeter of axial width of processed sealing ring (2).
6. the grinding attachment as described in one of claim 1 to 5, it is characterized in that in the inner hole of the tubular extended structure (3)
Face and the adjoining position of positioning working face (7) are equipped with a radial groove (6).
7. grinding attachment as claimed in claim 6, it is characterized in that the radial depth of the groove (6) and tubular extended structure
(3) the ratio between maximum radial thickness is 0.01 ~ 0.5:1.
8. grinding attachment as claimed in claim 7, it is characterized in that the radial depth of the groove (6) is 0.2 ~ 3 millimeter.
9. grinding attachment as claimed in claim 6, it is characterized in that the axial width of the groove (6) and tubular extended structure
(3) the ratio between axial extension is 0.01 ~ 0.6:1.
10. grinding attachment as claimed in claim 9, it is characterized in that the axial width of the groove (6) is 0.3 ~ 6 millimeter.
11. the grinding attachment as described in one of claim 1 to 5, it is characterized in that the radius of the disc body (4) central bore
(r1) it is greater than at least 2 millimeters of internal bore radius (r5) of sealing ring (2).
12. the grinding attachment as described in one of claim 1 to 5, it is characterized in that in the positioning working face of the disc body (4)
(7) position of radially inner side is equipped with the step structure (8) of an axial indent, the width of axial indent and the axis of disc body (4)
It is 0 ~ 0.6:1 to the ratio between width.
13. grinding attachment as claimed in claim 12, it is characterized in that the radical length of the step structure (8) and disc body
(4) the ratio between radical length is 0 ~ 0.3:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611264165.5A CN106670930B (en) | 2016-12-30 | 2016-12-30 | Process the thermal sleeve grinding attachment of inverted cone surface sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611264165.5A CN106670930B (en) | 2016-12-30 | 2016-12-30 | Process the thermal sleeve grinding attachment of inverted cone surface sealing ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106670930A CN106670930A (en) | 2017-05-17 |
| CN106670930B true CN106670930B (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611264165.5A Active CN106670930B (en) | 2016-12-30 | 2016-12-30 | Process the thermal sleeve grinding attachment of inverted cone surface sealing ring |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091817B (en) * | 2020-09-08 | 2022-06-17 | 中国航发贵州黎阳航空动力有限公司 | Thin wall annular part terminal surface grinding tool |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128269A (en) * | 2011-02-25 | 2011-07-20 | 西华大学 | Conical surface mechanical sealing device |
| CN102528613A (en) * | 2012-02-29 | 2012-07-04 | 大连理工大学 | Machining method for complex surface of fluid dynamic pressure and static pressure combined mechanical seal ring for nuclear main pump |
| CN103029037A (en) * | 2012-12-03 | 2013-04-10 | 大连理工大学 | Sealing ring machining pre-deformation force loading clamp and loading method |
| CN204628557U (en) * | 2015-04-03 | 2015-09-09 | 四川日机密封件股份有限公司 | For integrated type rotating ring and the mechanical seal device thereof of mechanical seal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10234707B4 (en) * | 2002-07-30 | 2007-08-02 | Erwin Junker Maschinenfabrik Gmbh | Method and device for grinding a rotationally symmetrical machine component |
-
2016
- 2016-12-30 CN CN201611264165.5A patent/CN106670930B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128269A (en) * | 2011-02-25 | 2011-07-20 | 西华大学 | Conical surface mechanical sealing device |
| CN102528613A (en) * | 2012-02-29 | 2012-07-04 | 大连理工大学 | Machining method for complex surface of fluid dynamic pressure and static pressure combined mechanical seal ring for nuclear main pump |
| CN103029037A (en) * | 2012-12-03 | 2013-04-10 | 大连理工大学 | Sealing ring machining pre-deformation force loading clamp and loading method |
| CN204628557U (en) * | 2015-04-03 | 2015-09-09 | 四川日机密封件股份有限公司 | For integrated type rotating ring and the mechanical seal device thereof of mechanical seal |
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| CN106670930A (en) | 2017-05-17 |
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Effective date of registration: 20201230 Address after: No.18, Songjiang Road, Yancheng Economic Development Zone, Jiangsu Province 224000 Patentee after: JIANGSU CHENGTIAN NEW BUILDING MATERIALS Co.,Ltd. Address before: 610039, No. 999, Jin Zhou road, Jinniu District, Sichuan, Chengdu Patentee before: XIHUA University |
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Effective date of registration: 20210701 Address after: Room 506, neighborhood center, Korean Industrial Park, No. 50, Jiuhuashan Road, Yancheng Economic and Technological Development Zone, Jiangsu Province, 224000 Patentee after: Yancheng Hanzi Industrial Park Industrial Development Co.,Ltd. Address before: No.18, Songjiang Road, Yancheng Economic Development Zone, Jiangsu Province 224000 Patentee before: JIANGSU CHENGTIAN NEW BUILDING MATERIALS Co.,Ltd. |
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