CN106670909B - Process the thermal sleeve grinding attachment of positive conical surface sealing ring - Google Patents
Process the thermal sleeve grinding attachment of positive conical surface sealing ring Download PDFInfo
- Publication number
- CN106670909B CN106670909B CN201611261865.9A CN201611261865A CN106670909B CN 106670909 B CN106670909 B CN 106670909B CN 201611261865 A CN201611261865 A CN 201611261865A CN 106670909 B CN106670909 B CN 106670909B
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- axially extending
- grinding attachment
- sealing ring
- face
- radial
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- 238000007789 sealing Methods 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 description 5
- 230000008602 contraction Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- 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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
-
- 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
- B24B41/06—Work supports, e.g. adjustable steadies
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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 the thermal sleeve grinding attachment of positive conical surface sealing ring, it is axially extending to side using central axis as the radial outreach disc body of the centre of gyration and in its radially inner side and there is the axially extending structure that outer diameter can be adapted with the diameter of bore of processed sealing ring including one, 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, a radial groove is equipped in the axially extending structure position adjacent with positioning working face, the outer peripheral surface of axially extending structure is the cylindric or coniform surface of revolution, and diameter >=axially extending end diameter of its root circumferential surface for 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 very high sealing surfaces of the surface quality requirements of seal face, particularly the sealing surfaces with positive cone cell.
Description
Technical field
The present invention relates to a kind of for processing the seal face of sealing ring, especially has positive cone 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 positive cone sealing
The grinding attachment of face sealing ring can effectively solve the problems, such as this.
The thermal sleeve grinding attachment of the positive conical surface sealing ring of processing of the present invention includes one with central axis in structure
For the radial outreach disc body of the centre of gyration, and it is axially extending to side in its radially inner side and have can be with processed sealing
The diameter of bore of ring is adapted the axially extending structure of outer diameter.Two axial end faces of the disc body are to be respectively perpendicular to central axis
The datum level of line 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
Make face in the shape that is parallel to each other.The outer peripheral surface of the axially extending structure for its position working face direction root circumferential surface diameter >=
The cylindric or coniform surface of revolution of axially extending end diameter.
In addition, the maximum radius of the axially extending structure outer peripheral surface, can make itself and processed sealing under normal circumstances
5 ~ 500 microns of magnitude of interference is maintained between the inner hole radius surface of ring.
According to being the plane vertical with rotary shaft or to bore the requirement on inclined-plane with different angle to seal face, usually
The cone angle size of the cylindric or coniform surface of revolution of axially extending structure described in above structure can be controlled is 0 ~ 30''s
Range.Excessive cone angle will lead to grinding attachment and when processed sealing ring contact, and easily generate the part of sealing ring biggish
Stress collection neutralizes deflection；When cone angle is zero, the outer peripheral surface of axially extending structure is a cylindrical surface.
As a kind of preferred form, radial outreach disc body described in above structure is described axially extending with its end
Structure can be used as the monoblock type tubular structure body with same inner hole surface.
It further includes the axial extension of above-mentioned axially extending structure that structure, which can further be optimized, be at least smaller than by
1 millimeter of axial width for processing sealing ring, to facilitate the grinding to sealing ring end face.In addition, the outreach disc body
Peripheral radius can also make sealing ring and grinding at least below 2 millimeters of peripheral radius of sealing ring, after the completion of facilitating grinding
The disassembly of device separates.
In addition, being also provided with a radial groove in the above-mentioned axially extending structure position adjacent with positioning working face.
On the one hand the groove can be conducive to be installed in place processed sealing ring smoothly on grinding fixture, furthermore the size of the groove
Phase can also be generated to the comprehensive deformation of processed sealing ring by the two axial end face datum level of disc body and positioning working face
It should influence.When the axially extending structure of radial outreach disc body and its end is the tubular structure body, the diameter of the groove
To depth, preferably making the ratio between itself and the maximum radial thickness of the axially extending structure of tubular under normal circumstances is 0.01 ~ 0.5:
1.For example, the radial depth of the groove can be 0.2 ~ 3 millimeter under normal conditions.In addition, the axis of groove described in above structure
It generally can be preferably 0.01 ~ 0.6:1 to the ratio between the axial extension of width and axially extending structure.For example, the groove
The value of 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 refers to the groove and axially extending structure outer peripheral surface
Radial distance between adjacent wall turning point and bottom portion of groove cylindrical surface；The axial extension of the axially extending structure is
Refer to the axial distance extended between end face for positioning working face to axially extending structure by radial outreach disc body；When diameter is outside
When the axially extending structure of exhibition disc body and its end is the monoblock type tubular structure body, the axially extending structure
Radial thickness refers to the maximum radial distance between the outer peripheral surface of axially extending structure and its tubular structure inner hole surface.
On the basis of above structure, it can also be provided in the radial outside of the positioning working face to the benchmark
The step structure of face direction indent, wherein it is preferred that the axial width of the step structure and the axial width of outreach disc body can be made
The ratio between degree is 0 ~ 0.6:1, and/or when the axially extending structure of radial outreach disc body and its end is the monoblock type tubular
When structural body, the ratio between the radical length of the step structure and the radical length of disc body can be made for 0 ~ 0.3:1.This step
Setting can facilitate the adjustment in the biggish situation of the external diameter of outreach disc to the positioning working face radial dimension, make
It can have better contact surface radial position and contact area with the non-tight end face of processed sealing ring.
It, can be first close by what is be processed when the above-mentioned grinding attachment of the present invention carries out positive cone face process to the seal face of sealing ring
After seal ring heating, axial direction of the hot jacket in above-mentioned apparatus is prolonged in a manner of pushing against its non-tight end face with positioning work face contact
It stretches in structure.It is cold by the common effect of contraction of positioning working face and the axially extending structure outer peripheral surface in above-mentioned apparatus
But the sealing surface of the processed sealing ring after just will form the surface of an inverted cone shape bulging deformation with cone angle beta.With this hair
The datum level of bright grinding attachment is placed on Grinder bench face, with grinding machine head to the surface of the sealing ring tapered protrusion from protrusion most
High outside diameter starts, and ecto-entad is gradually ground, and stops until being ground at the radial width of required seal face
Processing, and the sealing ring of processing is separated with device with modes such as conventional hydraulic screw extractors.It relieves in grinding attachment and positions
The processed sealing ring of the effect of contraction of working face and axially extending structure outer peripheral surface can restore its original-shape, and close at its
The required radius outside left in sealing end face formed one with cone angle beta ' positive conical 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 positive conical 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 the positive conical surface sealing ring of processing of the invention
Figure.
Fig. 2 is to be processed on sealing ring hot jacket grinding attachment shown in Fig. 1 seal face generation inverted cone shape 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 positive cone cell 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 positive cone cell 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 positive conical surface sealing ring,
It is the disc body 3 of the centre of gyration and radial outreach with a central hole with central axis 27 including a monolithic devices, and its radial
Inside is located at the axially extending structure 4 of tubular of centre bore of the one end with same inner hole surface 29.
Two axial end faces of disc body 3 be respectively perpendicular to central axis 27 datum level 25 and can be with processed sealing ring
The positioning working face 7 of 2 non-tight end face contact, the peripheral radius r1 of disc body 3 are less than the peripheral radius for being processed sealing ring 2
At least 2 millimeters of r5.At axially extending structure 4 position adjacent with positioning working face 7, it is equipped with a radial groove 6, the diameter of groove 6
It is 0.2 ~ 3 millimeter to depth, and the ratio between maximum radial thickness of its depth and the axially extending structure 4 of tubular is 0.01 ~ 0.5:1；
The axial width of groove 6 can be 0.3 ~ 6 millimeter, and its axial width and the ratio between the axial extension of axially extending structure 4 are
0.01~0.6:1.A step structure 8 to datum level direction indent, step structure 8 are equipped in the radial outside of positioning working face 7
Axial width and the ratio between the axial width of disc body 3 can be 0 ~ 0.6:1, the radical length of step structure 8 and the diameter of disc body 3
It can be 0 ~ 0.3:1 to length ratio.
The axial extension of axially extending structure 4 is less than at least 1 millimeter of axial width of processed sealing ring 2；It is axial
The outer peripheral surface 5 of extended structure 4 is cylindric for diameter >=axially extending end diameter that it positions the root circumferential surface in 7 direction of working face
Or coniform surface of revolution form, and the axially extending structure 4 it is cylindric or coniform revolution outer peripheral surface 5 cone angle beta be 0 ~
30'.The diameter of the inner hole 9 of the outer diameter of axially extending structure 4 and processed sealing ring 2 is adapted, and its maximum radius r2 and quilt
There is 5 ~ 500 microns of magnitude of interference between the 9 radius r4 of inner hole surface of processing sealing ring 2.
When being sealed the processing of ring seal face using above-mentioned grinding attachment, first by the sealing ring 2 of tapered surface to be processed
After heating (heating temperature may generally be 100 ~ 400 DEG C), by its hot jacket in the axially extending structure 4 of grinding attachment, specific side
Formula is, on the outer peripheral surface 5 for the axially extending structure 4 that the radial inner hole surface 9 to be processed sealing ring 2 is set in grinding attachment, axis
Upwards contact against the positioning working face 7 of the non-tight end face 10 for being processed sealing ring 2 and grinding attachment mid-game sheet body 3 fixed
Position.Positioning working face 7 and axially extending structure 45 collective effect of outer peripheral surface under, processed sealing ring 2 after cooling it is close
Sealing end face 26 just will form the bulging deformation surface of an inverted cone shape with cone angle beta.It is flat with the datum level 25 of disc body 3
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 outside diameter of seal face 26 is ground, by outer
Inwardly gradually seal face 26 is ground, until stopping when radius r3 required for being ground to.With modes such as hydraulic screw extractors
After separating processed sealing ring 2 with axially extending structure 4,4 outer peripheral surface of axially extending 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 outer greater than r3 on seal face 26
The positive conical 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 positive cone cell seal face processed through above-mentioned grinding attachment
The basic structure of device includes that can rotate and have close using the positive conical 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 positive conical 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 the thermal sleeve grinding attachment of positive conical surface sealing ring, it is characterized in that include one with central axis (27) being in revolution
Radial outreach disc body (3) He Qi radially inner side of the heart it is axially extending to side and have can be with processed sealing ring (2)
Inner hole (9) diameter is adapted the axially extending structure (4) of outer diameter, and two axial end faces of the disc body (3) 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 outer peripheral surface (5) of the axially extending structure (4) positions working face (7) for it
The cylindric or coniform surface of revolution 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 maximum half of the axially extending structure (4) outer peripheral surface (5)
There is 5 ~ 500 microns of magnitude of interference between diameter (r2) and inner hole (9) radius (r4) of processed sealing ring (2).
3. grinding attachment as described in claim 1, it is characterized in that the axially extending structure (4) is cylindric or coniform revolution
The cone angle (β) in face is 0 ~ 30'.
4. grinding attachment as described in claim 1, it is characterized in that the axial direction of radial outreach disc body (3) and its end
Extended structure (4) is the monoblock type tubular structure body with same inner hole surface (29).
5. grinding attachment as described in claim 1, it is characterized in that the axial extension of the axially extending structure (4) 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 prolonging in the axial direction adjacent with positioning working face (7)
Structure (4) position is stretched equipped with a radial groove (6).
7. grinding attachment as claimed in claim 6, it is characterized in that axially extending when radial outreach disc body (3) and its end
When structure (4) is tubular structure body, the maximum radial of the axially extending structure (4) of the radial depth and tubular of the groove (6)
The ratio between thickness is 0.01 ~ 0.5.
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 axially extending structure
(4) the ratio between axial extension is 0.01 ~ 0.6.
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 peripheral radius of the outreach disc body (3)
(r1) at least below 2 millimeters of the peripheral radius (r5) of sealing ring (2).
12. the grinding attachment as described in one of claim 1 to 5, it is characterized in that the radial outside in positioning working face (7) is equipped with
One to datum level direction indent step structure (8), the ratio between axial width of axial width and outreach disc body (3) for 0 ~
0.6。
13. grinding attachment as claimed in claim 12, it is characterized in that the diameter of the step structure (8) in tubular structure body
It is 0 ~ 0.3 to the ratio between radical length of length and disc body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611261865.9A CN106670909B (en) | 2016-12-30 | 2016-12-30 | Process the thermal sleeve grinding attachment of positive conical surface sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611261865.9A CN106670909B (en) | 2016-12-30 | 2016-12-30 | Process the thermal sleeve grinding attachment of positive conical surface sealing ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106670909A CN106670909A (en) | 2017-05-17 |
| CN106670909B true CN106670909B (en) | 2019-03-22 |
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ID=58848754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611261865.9A Active CN106670909B (en) | 2016-12-30 | 2016-12-30 | Process the thermal sleeve grinding attachment of positive conical surface sealing ring |
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| Country | Link |
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| CN (1) | CN106670909B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878739B (en) * | 2021-10-29 | 2023-10-24 | 西安航天动力研究所 | Machining tool and machining method for embedded sealing ring |
Family Cites Families (5)
| 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 |
| DE10235808B4 (en) * | 2002-08-05 | 2009-08-20 | Erwin Junker Maschinenfabrik Gmbh | Method and device for grinding a rotationally symmetrical machine component provided with a longitudinal bore |
| CN102350658B (en) * | 2011-09-28 | 2013-08-07 | 大连理工大学 | Ultra-precise processing method for circular conical surface of fluid static pressure sealing ring for nuclear primary pump |
| CN102601691B (en) * | 2012-04-06 | 2013-12-25 | 大连理工大学 | Conical surface grinding method |
| CN103029037B (en) * | 2012-12-03 | 2014-12-24 | 大连理工大学 | Sealing ring machining pre-deformation force loading clamp and loading method |
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2016
- 2016-12-30 CN CN201611261865.9A patent/CN106670909B/en active Active
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Effective date of registration: 20240206 Address after: 518000 1002, Building A, Zhiyun Industrial Park, No. 13, Huaxing Road, Henglang Community, Longhua District, Shenzhen, Guangdong Province Patentee after: Shenzhen Wanzhida Technology Co.,Ltd. Country or region after: China Address before: 610039, No. 999, Jin Zhou road, Jinniu District, Sichuan, Chengdu Patentee before: XIHUA University Country or region before: China |
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Effective date of registration: 20240909 Address after: No. 23, Nanhuan Road, Xiaohuangwa Village, Yanzhuang Town, Jinghai District, Tianjin City, 300000 Patentee after: Tianjin Guoxin New Energy Technology Co.,Ltd. Country or region after: China Address before: 518000 1002, Building A, Zhiyun Industrial Park, No. 13, Huaxing Road, Henglang Community, Longhua District, Shenzhen, Guangdong Province Patentee before: Shenzhen Wanzhida Technology Co.,Ltd. Country or region before: China |